Electrical body care brush

Abstract

An attachment brush part for an electrical body care brush, in particular an electrical toothbrush, wherein the attachment brush part is designed in a multi-part manner. The attachment brush part includes an attachment brush housing, a drive rod for driving a brush head, with a brush-head-side end section, on which a first toothing is arranged, and with a hand-part-side end section, and furthermore a brush head with a bristle carrier and care bristles which are arranged on this, wherein the bristle carrier includes a second toothing. The attachment brush housing further includes a securing element for the rotatable mounting of the hand-part-side end section of the drive rod. The first and second toothing form a drive toothing for the driving of the brush head by the drive rod.

Claims

1. An attachment brush part for an electrical body care brush, the attachment brush part comprising: an attachment brush housing which is one part that includes a housing head forming a bristle carrier receiver, and a limitation cam in the bristle carrier receiver; a drive rod for driving a brush head, with a brush-head-side end section, on which a first toothing is arranged, and with a hand-part-side end section; the brush head which includes a bristle carrier for receiving care bristles, wherein the bristle carrier is one part that comprises a second toothing and is rotatably mounted in the bristle carrier receiver of the housing head around a carrier rotation axis via a bearing pin which runs parallel to the carrier rotation axis; and a securing element for rotatable mounting of the hand-part-side end section of the drive rod; wherein the limitation cam is configured to interact with lateral stops on the bristle carrier such that a rotation angle of the bristle carrier is around the carrier rotation axis limited, the limitation cam has a length that extends parallel to the carrier rotation axis, and wherein the first and the second toothing form a drive toothing for driving the brush head by the drive rod.

2. The attachment brush part according to claim 1, wherein the drive rod at the brush-head-side end section comprises a drive rod bearing pin, through which a control rotation axis runs and the bearing pin is rotatably mounted in a pin receiver on the attachment brush housing, wherein the pin receiver is a blind hole.

3. The attachment brush part according to claim 2, wherein the pin receiver is arranged in a transition region between a housing neck which receives the drive rod, and the housing head which receives the brush head or parts of the brush head.

4. The attachment brush part according to claim 2, wherein the lateral stops for the limitation cam are arranged laterally of the pin receiver in a neutral position of the bristle carrier.

5. The attachment brush part according to claim 1, wherein the bristle carrier comprises a carrier body, on whose front side care bristles are arranged, as well as comprises a function unit which is arranged on a rear side of the carrier body, and the function unit comprises the second toothing, a bearing pin receiver for receiving an anchoring section of the bearing pin and the lateral stops for the limitation cam on the housing head of the attachment brush housing.

6. The attachment brush part according to claim 1, wherein the housing head contains a carrier receiver opening which is arranged on a front side with a feed-through opening which leads from a rear side into the bristle carrier receiver, for receiving the bearing pin from the rear side of the housing head.

7. The attachment brush part according to claim 1, wherein the securing element forms a hand-part-side sleeve section with a nub receiver for receiving a coupling nub of a hand part.

8. The attachment brush part according to claim 1, wherein the first toothing comprises 2 to 4 teeth.

9. The attachment brush part according to claim 1, wherein the housing head contains a bearing sleeve for receiving the bearing pin and the limitation cam is arranged on the bearing sleeve.

10. The attachment brush part according to claim 1, wherein the drive rod consists of polyamide.

11. The attachment brush part according to claim 1, wherein the drive rod comprises fibres for reinforcement.

12. The attachment brush part according to claim 1, wherein the attachment brush part consists of polybutylene terephthalate.

13. The attachment brush part according to claim 1, wherein the bristle carrier consists of polyoxymethylene.

14. The attachment brush part according to claim 1, wherein the bearing pin consists of metal.

15. The attachment brush part according to claim 1, wherein the second toothing comprises 2 to 4 second teeth.

16. The attachment brush part according to claim 1, wherein the limitation cam has a substantially trapezoidal cross section and tapers from a free end at an upper side to a base on a mounting sleeve.

17. The attachment brush part according to claim 1, wherein the lateral stops are arranged in the direction of an upper housing head end above the second toothing.

18. The attachment brush part according to claim 1, wherein in an assembled state of the bristle carrier, the limitation cam is arranged between the lateral stops, such that the bristle carrier is rotatable about a defined rotation angle which is defined by abutting of the lateral stops on the limitation cam.

19. The attachment brush part according to claim 1, wherein the lateral stops are connected to one another via an arched guide wall.

20. An electrical body care brush comprising a hand part and the attachment brush part according to claim 1.

21. A method for manufacturing the attachment brush part according to claim 1, wherein the attachment brush housing, the drive rod, the securing element and the bristle carrier are each injection moulded, the care bristles are attached onto the bristle carrier by way of an integrated or separate step, and the attachment brush housing, the drive rod, the securing element and the bristle carrier are brought together into the attachment brush part by way of a subsequent assembly step.

22. The method for manufacturing the attachment brush part according to claim 21, wherein the attachment brush housing, the drive rod, the securing element and the bristle carrier are brought together into the attachment brush part on an assembly mandrel.

23. A method for manufacturing the attachment brush part according to claim 1, wherein the care bristles are attached to the bristle carrier by way of an anchor punching method or an anchor-free method.

24. An attachment brush part for an electrical toothbrush, the attachment brush part comprising: an attachment brush housing comprising a housing head which is in a brush-head-side end section and includes a bristle carrier receiver and a carrier receiver opening on a front side of the bristle carrier receiver; a drive rod for driving a brush head with a brush-head-side end section, on which a first toothing is arranged, and a hand-part-side end section; the brush head which includes a bristle carrier with care bristles, wherein the bristle carrier comprises a carrier body with a front side on which the care bristles are arranged, and a second toothing on a rear side of the carrier body; a securing element for rotatable mounting of the hand-part-side end section of the drive rod; and a bearing pin for positioning, securing and for oscillatorily rotatable mounting of the brush head on the attachment brush housing, wherein the first toothing is oriented toward the front side of the bristle carrier receiver, the second toothing is oriented toward the rear side, and the first and second toothing form a drive toothing configured to drive the brush head by the drive rod, the bristle carrier comprises a bearing pin receiver which is open to the rear side for receiving the bearing pin, the bearing pin receiver comprising lateral stops for a limitation cam on the housing head of the attachment brush housing, the housing head comprises a feed-through opening which leads from the rear side into the bristle carrier receiver, for receiving the bearing pin from the rear side of the housing head, and the bearing pin is led through the feed-through opening from the rear side of the housing head and is fixed in the bearing pin receiver of the bristle carrier which is open to the rear side.

25. An electrical body care brush comprising a hand part and the attachment brush part according to claim 24.

26. A method for manufacturing the attachment brush part according to claim 24, wherein the attachment brush housing, the drive rod, the securing element and the bristle carrier are each injection moulded, the care bristles are attached onto the bristle carrier by way of an integrated or separate step, and the attachment brush housing, the drive rod, the securing element and the bristle carrier are brought together into the attachment brush part by way of a subsequent assembly step, wherein the bearing pin for the positioning, securing and for oscillatorily rotatable mounting of the brush head on the attachment brush housing is led through the feed-through opening from the rear side of the housing head and is fixed in the bearing pin receiver of the bristle carrier which is open to the rear side.

Description

(1) The subject-matter of the invention is hereinafter explained in more detail by way of embodiment examples which are represented in the accompanying drawings. There are shown in:

(2) FIG. 1a: a view of an electrical toothbrush according to the invention from the side;

(3) FIG. 1b: a view of the electrical toothbrush according to FIG. 1a from the rear side;

(4) FIG. 1c: a perspective view of the electrical toothbrush according to FIG. 1a from the front side;

(5) FIG. 2a: a view of an attachment brush part for an electrical toothbrush according to FIG. 1a-1c from the front side;

(6) FIG. 2b: a view of the attachment brush part according to FIG. 2a from the side;

(7) FIG. 2c: a view of the attachment brush part according to FIG. 2a from the rear side

(8) FIG. 2d: a perspective view of the attachment brush part according to FIG. 2a from the rear side;

(9) FIG. 2e: a view of the attachment brush part according to FIG. 2a from below;

(10) FIG. 2f: a perspective view of the attachment brush part according to FIG. 2a from the front side;

(11) FIG. 2g: a view of the attachment brush part according to FIG. 2a from above;

(12) FIG. 3a: a perspective view of an attachment brush housing for an attachment brush part according to FIGS. 2a-2g from the front side;

(13) FIG. 3b: a perspective view of the attachment brush housing according to FIG. 3a from the rear side;

(14) FIG. 3c: a perspective view of the attachment brush housing according to FIG. 3a from the front side;

(15) FIG. 3d: a view of the attachment brush housing according to FIG. 3a from the side;

(16) FIG. 3e: a view of the attachment brush housing according to FIG. 3a from the rear side;

(17) FIG. 3f: a cross-sectional view of the attachment brush housing according to FIG. 3a along the plane A-A in FIG. 3c;

(18) FIG. 3g: a cross-sectional view of the attachment brush housing according to FIG. 3a along the plane B-B in FIG. 3d;

(19) FIG. 4a: a perspective view of a bearing pin for an attachment brush part according to FIG. 2a-2g;

(20) FIG. 4b: a view of the bearing pin according to FIG. 4a from the side;

(21) FIG. 5a: a perspective view of a securing element for an attachment brush part according to FIG. 2a-2g obliquely from below;

(22) FIG. 5b: a further perspective view of the securing element according to FIG. 5a obliquely from above;

(23) FIG. 5c: a view of the securing element according to FIG. 5a from the front;

(24) FIG. 5d: a view of the securing element according to FIG. 5a from the side;

(25) FIG. 5e: a view of the securing element according to FIG. 5a from the rear;

(26) FIG. 5f: a front view of the securing element according to FIG. 5a from above;

(27) FIG. 5g: a further front view of the securing element according to FIG. 5a from below;

(28) FIG. 6a: a perspective view of a drive rod for an attachment brush part according to FIG. 2a-2g obliquely from below;

(29) FIG. 6b: a perspective view of the drive rod according to FIG. 6a obliquely from above;

(30) FIG. 6c: a front view of the drive rod according to FIG. 6a from above;

(31) FIG. 6d: a further front view of the drive rod according to FIG. 6a from below;

(32) FIG. 6e: a view of the drive rod according to FIG. 6a from the front;

(33) FIG. 6f: a further view of the drive rod according to FIG. 6a from the side;

(34) FIG. 6g: a further view of the drive from according to FIG. 6a from the rear;

(35) FIG. 7a: a perspective view of a brush head for an attachment brush part according to FIG. 2a-2g obliquely from the rear;

(36) FIG. 7b: a further perspective view of the brush head according to FIG. 7a obliquely from the front;

(37) FIG. 7c: a view of the brush head according to FIG. 7a from the side;

(38) FIG. 7d: a view of the brush head according to FIG. 7a from the front;

(39) FIG. 7e: a further view of the brush head according to FIG. 7a from the rear;

(40) FIG. 8a: a view of the attachment brush part according to FIG. 2a-2g which is stuck onto the hand part, from the front;

(41) FIG. 8b: a view of the attachment brush part according to FIG. 8a from the side;

(42) FIG. 8c: a perspective view of the attachment brush part according to FIG. 8a obliquely from the rear without an attachment brush housing;

(43) FIG. 8d: a cross-sectional view of the attachment brush part according to FIG. 8a along the plane A-A;

(44) FIG. 8e: a cross section of the attachment brush part according to FIG. 8b along the plane B-B;

(45) FIG. 8f a cross-sectional view of the attachment brush part according to FIG. 8b along the plane E-E;

(46) FIG. 9: a view of the brush head according to the invention from the front;

(47) FIG. 10a: a cross sectional view of a first embodiment variant of a brush head along the plane A-A according to FIG. 9;

(48) FIG. 10b: a perspective view of the brush head according to FIG. 10 obliquely from the rear;

(49) FIG. 10c: a perspective view of the brush head according to FIG. 10a obliquely from the front;

(50) FIG. 10d: a detail view B according to FIG. 10a;

(51) FIG. 11a: an exploded view of a second embodiment variant of a brush head obliquely from the rear;

(52) FIG. 11b: the exploded view of the brush head according to FIG. 11a obliquely from the front;

(53) FIG. 11c: a cross sectional view of the brush head according to FIG. 11a along the plane A-A according to FIG. 9;

(54) FIG. 11d: a detail view B according to FIG. 11c;

(55) FIG. 12a: an exploded view of a third embodiment variant of a brush head obliquely from the rear;

(56) FIG. 12b: the exploded view of the brush head according to FIG. 12a obliquely from the front;

(57) FIG. 12c: a cross-sectional view of the brush head according to FIG. 12a along the plane A-A according to FIG. 9;

(58) FIG. 12d: a detail view B according to FIG. 12c;

(59) FIG. 13a: an exploded view of a fourth embodiment variant of a brush head obliquely from the rear;

(60) FIG. 13b: the exploded view of the brush head according to FIG. 13a obliquely from the front;

(61) FIG. 13c: a cross-sectional view of the brush head according to FIG. 13a along the plane A-A according to FIG. 9;

(62) FIG. 13d: a detailed view B according to FIG. 13c;

(63) FIG. 14a: a view of a further embodiment of a brush head according to the invention, from the front;

(64) FIG. 14b: a cross-sectional view of the brush head along the plane A-A according to FIG. 14a;

(65) FIG. 14c: a perspective view of the brush head according to FIG. 14a obliquely from the rear;

(66) FIG. 14d: a perspective view of the brush head according to FIG. 14a obliquely from the front;

(67) FIG. 15a: a perspective view of a further embodiment of a brush head according to the invention obliquely from the front;

(68) FIG. 15b: a view of the brush head according to FIG. 15a from the side;

(69) FIG. 15c: a view of the brush head according to FIG. 15a from the front;

(70) FIG. 16a: a perspective view of an attachment brush housing for an attachment brush part according to FIG. 2a-2g from the front side;

(71) FIG. 16b: a perspective view of an attachment brush housing according to FIG. 16a from the rear side;

(72) FIG. 16c: a view of an attachment brush housing according to FIG. 16a from the front side;

(73) FIG. 16d: a view of the attachment brush housing according to FIG. 16a from the side;

(74) FIG. 16e: a view of the attachment brush part according to FIG. 16a from the rear side;

(75) FIG. 16f: a cross-sectional view of the attachment brush housing according to FIG. 16a along the plane A-A in FIG. 16c;

(76) FIG. 16g: a cross-sectional view of the attachment brush housing according to FIG. 16a along the plane B-B in FIG. 16d;

(77) FIG. 17a: a perspective view of a securing element for an attachment brush part according to FIG. 2a-2g obliquely from below;

(78) FIG. 17b: a further perspective view of a securing element according to FIG. 17a obliquely from above;

(79) FIG. 17c: a view of a securing element according to FIG. 17a from the front;

(80) FIG. 17d: a view of the securing element according to FIG. 17a from the side;

(81) FIG. 17e: a view of the securing element according to FIG. 17a from the rear;

(82) FIG. 17f: a front view of the securing element according to FIG. 17a from above;

(83) FIG. 17g: a further front view of the securing element according to FIG. 17a from below;

(84) FIG. 18a: a perspective view of a drive rod for an attachment brush part according to FIG. 2a-2g obliquely from below;

(85) FIG. 18b: a perspective view of the drive rod according to FIG. 18a obliquely from above;

(86) FIG. 18c: a front view of the drive rod according to FIG. 18a from above;

(87) FIG. 18d: a further front view of the drive rod according to FIG. 18a from below;

(88) FIG. 18e: a view of the drive rod according to FIG. 18a from the front;

(89) FIG. 18f: a further view of the drive rod according to FIG. 18 from the side;

(90) FIG. 18g: a further view of the drive rod according to FIG. 18a from the rear.

(91) The present invention is not restricted to the embodiments which are represented in the Figures. The embodiments which are shown in the figures are merely exemplary.

(92) Within the framework of the invention, the individual features and the associated functions of individual embodiments can be combined with other embodiments inasmuch as this is technically meaningful, without departing from the framework of this invention. The descriptions concerning specific figures can of course also be conferred upon other figures which display the same or similar manifestations and in which the manifestations are not described in the same detail.

(93) Basically, in the figures, the same parts are provided with the same reference numerals.

(94) FIGS. 1a to 1c show an electrical toothbrush 1 according to the invention. This is composed of a hand part 10 as well as of an attachment brush part 2 which can be stuck onto the hand part 10 in a manner such that it can be released from this again. The attachment brush part 2 amongst other things comprises an oscillatorily rotatably mounted brush head 61.

(95) The hand part 10 amongst other things comprises a grip body 11 with a grip body housing 15. In the FIGS. 8d and 8e, the coupling nub 12 as well as the control pin 13 which exits from the coupling nub 12, and the grip body housing 15 can be deduced from the cross-sectional view.

(96) The electrical toothbrush 1 has a longitudinal axis L.

(97) The FIGS. 2a to 2g show an attachment brush part 2 with an oscillatorily rotatable brush head 61, as can be applied in an electrical toothbrush 1 according to FIG. 1a-1c or FIG. 8a-8f.

(98) The attachment brush part 2 further comprises an attachment brush housing 21 with a housing head 42 and a housing neck 22. The housing neck 22 is designed in a conical manner and tapers to the brush head 61.

(99) Slot-like through-openings 33, 50 are provided in the housing wall, in the housing neck 22 as well as in the housing head 42. These serve for the passage of water on cleaning the attachment brush part 2.

(100) A slot-like through-opening 33 is provided in the housing neck 22 towards the housing head 42, on the front side and the rear side of the attachment brush part 2.

(101) Furthermore, three slot-like through-openings 50 are arranged on the rear side of the housing head 42. The three through-openings 50 are designed in an arched manner and are arranged concentrically about the carrier rotation axis T.

(102) Three annular withdrawal ribs 34 are arranged on the outer side of the housing neck 22. The withdrawal ribs 34 which are arranged concentrically to the control rotation axis S form a grip aid and give the user they required retention for withdrawing the attachment brush part 2 from the hand part 10.

(103) Furthermore, a spring-elastic latching tongue 31 with a latching lug is arranged on the rear side in the housing wall of the housing neck 22 towards a hand-part-side receiver opening 29. The latching tongue 31 is exposed via a U-shaped slot in the housing wall. The latching tongue 31 serves for the axial securing of a securing element 121 which is inserted into the housing neck 22 via the hand-part-side receiver opening 29.

(104) The brush head 61 forms a three-part bristle field with care bristles 81, which is arranged on a bristle carrier 62. A part of the bristle field which is at the top and a part which is at the bottom in the neutral position of the brush head 61 are designed in the form of a circle segment. A middle part of the bristle field consists of two parallel rows of care bristles 81. The care bristles 81 of the upper and the lower parts of the bristle field project beyond the care bristles 81 of the middle part.

(105) A securing element 121 is inserted into the hand-part-side receiver opening 29 of the housing neck 22 and is fixed in the housing neck. The securing element 121 at its hand-part-side end comprises an annular insert limitation flange 124. The outer periphery of the insert limitation flange 124 in the assembled state is flush with the connecting outer periphery of the housing neck 22, into which the securing element 121 is inserted.

(106) The insert limitation flange 124 amongst other things has the function of an insert limitation which is to prevent the securing element 121 being pushed too far into the housing neck 22. The insert limitation is effected by way of the insert imitation flange 124 of the securing element 121 abutting/bearing on the face end surface 28 which surrounds the hand-part-side receiver opening 29.

(107) The securing element 121 which is inserted into the housing neck 22 serves for the radial securing or alignment of the hand-part-side end section of the drive rod 91. Furthermore, the securing element 121 serves for the axial securing or fixation and positioning of the drive rod 91 in the housing neck 22, so that this cannot fall out of the housing neck 22.

(108) Moreover, the securing element 121 forms a hand-part-side sleeve section 123 with a nub receiver 127 which has the function of a coupling section for receiving the coupling nub 12 of the hand part 10.

(109) The securing element is described in yet more detail in the context of FIGS. 5a-5g.

(110) FIGS. 3a to 3g show an attachment brush housing 21 with a housing neck 22 and with a housing head 42 which connects to the housing neck at the brush head side.

(111) The housing neck 22 is a tubular body with a continuous receiver which at the hand part side ends in the receiver opening 29 and at the brush head side runs out in the bristle carrier receiver 43 of the housing head 42.

(112) The housing neck 22 serves for receiving the drive rod 91 as well as the securing element 121 (see also FIGS. 8d and 8e).

(113) The housing neck 22 comprises a hand-part-side first receiving section 23 which connects onto the hand-part-side receiver opening 29 in the direction of the brush head 61, for receiving the securing element 121. Furthermore, a brush-head-side second receiving section 24 for receiving the drive rod 91 connects onto the first receiving section 23 in the direction of the brush head 61 (see also FIGS. 8d and 8e).

(114) A pin receiver body 25 with a pin receiver 26 for receiving the bearing pin 96 of a drive rod 91 which is yet described further below is arranged on the brush-head-side end of the second receiving section 24. The pin receiver body 25 is arranged on the rear-side housing wall and projects from this into the second receiving section 24. Furthermore, the pin receiver body 25 with a longitudinal section projects into the bristle carrier receiver 43 of the housing head 42.

(115) The pin receiver 26 is designed as a blind hole and comprises a longitudinal axis which lies in the control rotation axis S. The pin receiver 26 forms a hand-part-side pin receiver opening.

(116) Two through-openings 32 which are arranged opposite one another are arranged in the transition from the first to the second receiving section 23, 24, in the housing wall of the housing neck 22. These serve for receiving the latching lugs 131 on the latching tongues 130 on the securing element 121, which are yet described in more detail further below (see also FIG. 8d).

(117) Furthermore, the slot-like through-openings 33, 50 in the housing wall of the attachment brush housing 21 which have already been described with regard to FIGS. 2a-2g and permit the passage of water for cleaning the attachment brush part 2 are represented in the housing neck 22 as well as in the housing head 42.

(118) Moreover, the withdrawal ribs 34 which have already been described with regard to the FIGS. 2a-2g are represented on the outer side of the housing neck 22.

(119) The housing head 42 forms a beaker-like bristle carrier receiver 43 which is open towards the front side via a carrier receiver opening 44. The bristle carrier receiver 43 serves for receiving the function unit 64 of the bristle carrier 62 which is yet described further below.

(120) The carrier receiver opening 44 is delimited by a peripheral face end surface 45 which has different widths along its circular outer periphery. The different widths of the face end surface 45 are based on different wall thicknesses in the housing head 42.

(121) A mounting sleeve 47 with a feed-through opening 48 for leading through a bearing pin 111 which is yet described hereinafter, from the rear side of the housing head 42, is arranged in the bristle carrier receiver 43.

(122) The mounting sleeve 47 forms a peripheral, annulus-shaped stop shoulder 51 which is directed to the front side and which encompasses a cylinder-shaped end section 52 of the mounting sleeve. The stop shoulder 51 lies in one plane with a face end surface of the limitation cam 46 which is directed to the brush head 61.

(123) The cylinder-shaped end section 52 of the bearing sleeve 47 engages into a cylinder receiver 70 on the function unit 64, said cylinder receiver being yet described hereinafter, and bears with the face end surface 69 on a contact shoulder 68 which is likewise described hereinafter and which surrounds a bearing pin receiver 65 (see also FIG. 8f).

(124) A depression 49 for receiving the pin head 115 of the bearing pin 111 is provided on the rear side of the housing head.

(125) A cross-sectionally trapezoidally designed limitation cam 46 which tapers from its free end (at the upper side) to its base on the mounting sleeve 47 is arranged in the bristle carrier receiver 43. The limitation cam 46 is arranged on the outer wall of the bearing sleeve 47 and is connected to this. Starting from the mounting sleeve 47, the limitation cam 46 is directed along the control rotation axis S to the outermost head end. The limitation cam 46 is moreover connected to the rear-side housing wall.

(126) A connection rib 27 which connects the mentioned elements to one another is arranged between the mounting sleeve 47 and the already mentioned pin receiver body 25. The connection rib 27 is moreover connected to the rear-side housing wall.

(127) The pin receiver 26 of the pin receiver body 25, the connection rib 27, the feed-through opening 48 of the mounting sleeve 47 and the limitation cam 46 are arranged in a common plane, in which the control rotation axis S also lies.

(128) The bearing pin 111 according to the FIGS. 4a and 4b comprises a pin shank 112 and a pin head 115 with a diameter which is larger compared to the pin shank 112. The pin shank 112 in an end section comprises an anchoring section 113 with a plurality of cone-shaped anchoring elements 114 which are arranged along a bearing pin axis G and which taper in the direction of the free shank end.

(129) The anchoring elements 114 serve for the axial and rotationally fixed anchoring of the anchoring section 113 in the bearing pin receiver 65 on the bristle carrier 62.

(130) In the assembled state, the bearing pin 111 is led from the rear side of the housing head 42 through the mounting sleeve 47 or the feed-through opening 48 into the bristle carrier receiver 43 and engages with its anchoring section 113 into the bearing pin receiver 65 of the bristle carrier 62. The pin head 115 is recessed in the depression 49 on the housing head 42 (see FIG. 8f).

(131) The securing element 121 according to FIGS. 5a-5g is designed in a sleeve-like manner and forms a continuous sleeve cavity.

(132) The securing element 121 comprises a brush-head-side, first sleeve section 122 for receiving and supporting the hand-part-side end section of the drive rod 91.

(133) The first sleeve section 122 comprises an inner-lying, annular cross-sectional narrowing 128 in the form of an inner ring. The annular cross-sectional narrowing 128 forms an annular inner stop surface 125 which faces the brush head 61. The inner stop surface 125 is orientated perpendicularly to the control rotation axis S. Furthermore, the annular cross-sectional narrowing 128 forms a cylinder-shaped receiving section 129 for receiving the stop cylinder 101 of the drive rod 91 which is yet described further below.

(134) The cylinder-shaped receiving section 129 serves for the pre-centring of the drive rod 91 via the stop cylinder 101 of the drive rod 91 which engages into this. The diameter of the cylinder-shaped receiving section 129 is larger than that of the stop cylinder 101 which engages into this.

(135) In this manner, the stop cylinder 101 is led with play in the cylinder-shaped receiving section 129, by which means no friction occurs between the lateral cylinder surfaces.

(136) The inner stop surface 125 serves for the mounting of a stop shoulder 102 which is peripheral to the stop cylinder 101 and which is on the drive rod 91 (see FIGS. 8d and 8e).

(137) Two oppositely lying latching tongues 130 each with an outwardly directed latching lug 131 are arranged in the sleeve wall of the first sleeve section 122. The latching tongues 130 which are directed in the direction of the brush head 61 are exposed out of the sleeve wall via slot-like openings. The latching tongues 130 or the latching lugs 131 serve for the axial securing of the securing element 121 on the housing neck 22 by way of the mentioned latching lugs 131 engaging into the already mentioned through-openings 32 on the housing neck 22 (see FIG. 8d).

(138) Furthermore, the securing element 121 comprises a hand-part-side, second sleeve section 123 with a nub receiver 127 for receiving the coupling nub 12 of the hand part 91. The second sleeve section 123 thus forms a coupling section.

(139) The securing element 121 consequently also serves for the connection of the attachment brush part 2 to the hand part 10. The nub receiver 127 has an inner geometry which is adapted to the cross-sectional geometry of the coupling nub 12.

(140) The nub receiver 127 in the region of the nub receiver opening 133 comprises a funnel-like widening 132 which serves an insert aid for the coupling nub 12.

(141) The nub receiver 127 further comprises displacement ribs 135 which serve for creating a well pronounced press fit. The displacement ribs 135 run parallel to the longitudinal axis L of the body care brush or the attachment direction.

(142) The outer surfaces of the sleeve sections 122, 123 are designed conically and taper towards the brush head 61. The insertability of the securing element 121 into the conically designed housing neck 22 is ensured by way of this.

(143) A more pronounced tapering which is designed in the form of a step or an annularly peripheral cone surface can be designed in the direction of the brush-side sleeve section in the transition region from the hand-part-side to the brush-side sleeve section.

(144) The outer surface of the securing element 121 can further comprises ribs 134 which extend over both sleeve sections 122, 123. The ribs 134 are aligned essentially parallel to the longitudinal direction L of the body care brush. The ribs can merge towards the brush-side first sleeve section 122 into the latching tongues 130.

(145) Furthermore, the securing element 121 at its hand-part-side end in the region of the nub relieving opening 133 comprises an annular insert limitation flange 124 which has already been described further above. The insert limitation flange 124, as already mentioned, ensures that the securing element 121 is not pushed completely into the housing neck 22.

(146) The drive rod 91 according to FIGS. 6a-6g comprises a hand-part-side end section 94 as well as a brush-head-side end section 95.

(147) The drive rod 91 at the hand-part-side end section 94 comprises a control pin receiver 99 for receiving the end section of the control pin 13. The drive rod 91 is designed in a tubular manner in this section. The longitudinal axis of the control pin receiver 99 lies on the control rotation axis S.

(148) The control pin receiver 99 comprises a circular-cylinder-shaped basic cross section. In the brush-head-side end section, the control pin receiver 99 has a circle-segment-shaped cross-sectional narrowing 100 with respect to the circular basic cross section. This ensures a positive receiving of the control pin 13 in the control pin receiver 99 and thus a rotational lock (see FIGS. 8d and 8e).

(149) Furthermore, the drive rod 91 in the region of the control pin receiver 99 comprises a spring-elastic pressing tongue 103 which is arranged in the wall of the control pin receiver 99. This presses against the control pin 13 which is inserted into the control pin receiver 99 and clamps this in the control pin receiver 99.

(150) The pressing tongue 103 is exposed out of the wall of the control pin receiver 99 by way of a slot-like opening.

(151) Furthermore, the drive rod 91 in the hand-part-side end section 94 comprises an annular stop cylinder 101 in the form of a hollow cylinder, in the extension of the control pin receiver 99. The stop cylinder 101 has a smaller outer diameter than the outer diameter of the receiving section of the drive rod 91 which connects thereto and which is with the control pin receiver 99. Accordingly, a peripheral stop shoulder 102 is formed in the transition from the receiving section to the stop cylinder 101.

(152) The function of the stop cylinder 101 and of the associated stop shoulder 102 has already been explained in the context of the description of the securing element 121.

(153) For transmitting an oscillating rotation movement from the drive rod 91 onto the brush head 61, said movement having being introduced from the control pin 13 into the drive rod 91, the drive rod 91 at its brush-head-side end section comprises a first toothing 92 with two teeth 92.1 for meshing into a second toothing 66 on the bristle carrier 62 of the brush head 61 which is described further below.

(154) The first toothing 92 which is directed to the front side, with the second toothing 66 of the bristle carrier 62 forms a drive toothing for this.

(155) The face end surfaces of the two teeth 92.1 of the first toothing 92, via which the meshing with the teeth 66.1 of the second toothing 66 is effected, have an inclination with respect to the control rotation axis S.

(156) The drive rod 91 at its brush-head-side end section 95 further forms a bearing pin 96, whose longitudinal axis runs in the control rotation axis S. In the assembled state, the bearing pin 96 is rotatably mounted in the pin receiver 26 of the attachment brush housing 21 (see FIGS. 8d and 8e), as already mentioned.

(157) The drive rod 91 is consequently rotatably mounted and axially as well as radially secured with its brush-head-side end section 95 on the attachment brush housing 21 via the bearing pin 96 and with its hand-part-side end section 94 on the securing element 121 via the stop cylinder 101 with the stop shoulder 102 (see FIG. 8c as well as 8d and 8e).

(158) The drive rod 91 in a brush-head-side end section 95 now forms a cross-sectional recess which is delimited to the hand-part-side end section by a bearing pin shoulder 97. The bearing pin 96 is now arranged on this bearing pin shoulder 97.

(159) The aforementioned first toothing 92 is arranged on the brush-head-side end of a rod continuation 98, said rod continuation starting from the bearing pin shoulder 97 extending in the direction of the brush-head-side end. The rod continuation 98 runs parallel to the bearing pin 96. A recess is provided between the rod continuation 98 and the bearing pin 96.

(160) The bearing pin 96 comprises a conical base, via which this is connected to the bearing pin shoulder 97.

(161) A cylindrical middle section as well as a conically tapering free end section connects to the cone-shaped base (see in particular FIGS. 6f and 6g).

(162) The bearing pin 96 is arranged behind the first toothing 92 considered from the front side.

(163) The drive rod 91 further comprises a curvature (see FIG. 6f). A first hand-part-side longitudinal section of the drive rod 91, encompassing the hand-part-side end section 94, runs parallel to the control rotation axis S, whilst a second brush-head-side longitudinal section is inclined towards the front side with respect to the control rotation axis S.

(164) A brush-head-side end section 95 however again runs parallel with respect to the control rotation axis S. This means that the arcuate section is arranged between the hand-part-side longitudinal section of the drive rod 91, encompassing the hand-part-side end section 94, and the brush-head-side end section 95.

(165) The drive rod 91 at its front side in the region of the control pin receiver 99 further comprises a flattening 104 on the outer periphery. The flattening 104 serves as an assembly aid and simplifies the correct alignment or positioning of the drive rod 91 with respect to its rotation axis before the assembly.

(166) The brush head 61 according to FIGS. 7a-7e comprises a bristle carrier 62 as well as care bristles 81 which are arranged on the front side of the bristle carrier 62.

(167) The bristle carrier 62 in turn comprises a carrier body 72 as well as a function unit 64 which is arranged on the rear side of the carrier body 72.

(168) The carrier body 72 comprise a bristle anchoring body 63, on which the care bristles 81 are anchored or fastened.

(169) The care bristles 81 can be anchored in the bristle anchoring body 63 in different manner. Accordingly, the carrier body 72 can also be constructed differently. Particular embodiments of carrier bodies 72 with a bristle anchoring body 63 as well as of care bristles 81 or function elements which are arranged on this body are described further below by way of FIGS. 10 to 15.

(170) The function unit 64 amongst other things comprises a second toothing 66. The second toothing 66 consists of three teeth 66.1 which are arranged on the rear side of the bristle anchoring body 63. The teeth 66.1 are arranged in a radiant or radially running manner, departing from the carrier rotation axis T.

(171) The face end surfaces of the second teeth 66.1, via which the meshing of the first teeth 92.1 is effected, have an inclination with respect to the carrier rotation axis T.

(172) The function unit 64 further comprises a rotation angle limitation device for the brush head, with two lateral stops 67 for the limitation cam 46 which is already described further above. The lateral stops 67 are arranged above the second toothing 66.

(173) In the assembled state of the brush head 61, the limitation cam 46 is arranged between the two lateral stops 67. The bristle carrier 62 is now only rotatable about a defined rotation angle W which is defined by the abutting of the lateral stops 67 on the limitation cam 46. In the neutral position, the limitation cam 46 lies precisely between the two lateral stops 67.

(174) The lateral stops 67 are connected to one another via a circular-arc-shaped guide wall 71. The guide wall 71 is arranged concentrically to the carrier rotation axis T or to the bearing pin receiver 65.

(175) The lateral stops 67 and the circular-arc-shaped guide wall 71 project beyond the second toothing 66 along the carrier rotation axis T.

(176) The function unit 64 moreover comprises a bearing pin receiver 65 which is open to the rear side, for receiving the anchoring section 113 of the bearing pin 111 which has already been described further above. The bearing pin receiver 65 is designed as a blind hole. This means that the bearing pin receiver 65 is not open towards the front side of the carrier body 72 but in contrast ends in the bristle anchoring body 63.

(177) The lateral stops 67 are arranged laterally of the bearing pin receiver (with respect to the longitudinal axis L) in the neutral position of the bristle carrier 62. The longitudinal axis of the bearing pin receiver 65 lies in the carrier rotation axis T.

(178) The function unit 64 moreover forms an annular contact shoulder 68 which surrounds the opening of the bearing pin receiver 65. The annular contact shoulder 68 is delimited by an annular wall which forms a cylinder receiver 70. The annular contact shoulder 68 serves for the resting contact of the bristle carrier 62 on the mounting sleeve 47 of the housing head 42.

(179) For this, the bristle carrier 62 bears on the face end surface of the cylinder-shaped end section 52 of the bearing sleeve 47 via the contact surface of the contact shoulder 68. In the assembled state, the cylinder receiver 70 with the annular wall engages over the cylinder-shaped end section 52 of the bearing sleeve 47 and thus ensures an adequate centring of the bristle carrier 62 on the housing head 42 before the assembly of the bearing pin 111 (see FIG. 8f).

(180) The design according to the invention has the advantage that pressing forces which act upon the brush part 61 are introduced into the mounting sleeve via the annular contact shoulder 68 and in this manner into the housing head 42.

(181) FIGS. 10 to 13 show different embodiment variants of brush heads 161, 261, 361 concerning which the bristling is effected in each case by way of the so-called AFT method. The AFT method has already been described in detail in the general description part and is therefore no longer described here.

(182) Since the front view of a brush head is the same for all of the embodiment examples of brush heads which are represented in the figures of the present patent application, with regard to reference to the cross-sectional view along the plane A-A in FIG. 9, one forgoes representing a separate front view of a brush head for each embodiment.

(183) Rather, FIG. 9 is referred to with regard to this, which shows a front view of a brush head 61 as is the case for all of the embodiment examples of brush heads which are represented in the figures of the present patent application.

(184) Since the function unit 64 of the embodiment variants according to FIG. 10-13 is identical in each case, and this corresponds to the function unit 64 according to the embodiment example according to FIG. 7a-7e, here the function unit 64 is not described any further. Rather the description concerning FIGS. 7a-7e is referred to.

(185) The mentioned embodiment variants according to FIG. 10-13 each comprise a carrier body 172, 272, 372 which is composed of a base element 171, 271, 371 and a bristle anchoring body 163, 263, 363 which is stuck onto this and is connected to the base element 171, 271, 371.

(186) The bristle anchoring body 163, 263, 363 at its bristle anchoring side which lies opposite the front side comprise a peripheral connection edge 174, 274, 374 which projects in the direction of the base element 171, 271, 371 and which accordingly encompasses a deepening. The bristle ends which are anchored on the bristle anchoring body 163, 263, 363 are arranged in the deepening. The bristle anchoring body 163, 263, 363 forms a U-shaped cross section.

(187) The already mentioned function unit 64 is arranged on the rear side of the mentioned base element 171, 271, 371.

(188) The base element 171, 271, 371 for its part comprises a peripheral edge 175, 275, 375 which forms a connection contact surface to the projecting connection edge 174, 274, 374 of the bristle anchoring body 163, 263, 363.

(189) According to the embodiment variant according to FIG. 10a-10d, the connection contact surface of the peripheral edge 175 of the base element 171 is designed in a plane manner and is arranged perpendicularly to the carrier rotation axis T.

(190) The peripheral, projecting connection edge 174 on the bristle anchoring body 163 forms a plane face end surface which is likewise arranged perpendicularly to the carrier rotation axis T. The bristle anchoring body 163 is now connected to the base element 171 via the face end surface of the projecting connection edge 174 which lies on the connection contact surface.

(191) The connection between the face end surface and the connection contact surface is effected by way of (plastic) welding, such as ultrasonic welding.

(192) For this, melt elements 173 are arranged on the face end surface. The melt elements 173 project beyond the face end surface and are melted on welding. In this manner, the melt elements 173 provide additional plastic material for creating the weld connection. The melt elements 173, 273, 373 are represented schematically, so that these are also visible in the melted state.

(193) The peripheral edge 175 of the base element 171 encloses a truncated-cone-shaped body 176 which is directed towards the bristle anchoring body 163. This is characterised by a flank 177 which departing from the peripheral edge 175 is inclined towards the centre, as well as by a plane surface 178 which is raised with regard to the peripheral edge 175 and which is enclosed by the inclined flank 177. The truncated-cone-shaped body 176 serves for centring the bristle anchoring body 163 on the base element 171.

(194) The bristle anchoring body 163 lies on the base element 171 merely via the face end surface of the projecting connection edge 174 on the peripheral edge 175. A cavity is formed between the base element 171 and the bristle anchoring body 163, within the peripheral edge 175.

(195) According to a further development of the embodiment variant according to FIG. 10a-10c, so-called positioning aids 179, 180 are arranged on the bristle anchoring body 163 and the base element 171, wherein these permit the bristle anchoring body 163 to be positioned on the base element 171 at a defined angular position about the carrier rotation axis T (see FIGS. 11a-11d).

(196) The positioning aids are pairings of positioning ribs 179 and positioning notches 180, wherein these pairings are matched to one another and positively mesh into one another on depositing the bristle anchoring body 163 onto the base element 171 at the correct angular position.

(197) A plurality of positioning ribs 179 are thus arranged on the bristle anchoring body 163 along the inner periphery of the projecting connection edge 174, i.e. on its inner side, as well as a plurality of positioning notches 180 on the base element 171 along the outer periphery of the truncated-cone-shaped body 176 in its inclined flank.

(198) The described positioning aids 179, 180 have the characteristic that the face end surface of the projecting connection edge 174 of the bristle anchoring body 163 and the connection contact surface of the peripheral edge 175 of the base element 171, for the purpose of creating the connection, do not meet one another until in the correct angular position, which is say when the positioning aids 179, 189 mesh into one another.

(199) According to the embodiment variant according to FIG. 12a-12d, the connection contact surface of the peripheral edge 275 of the base element 271 is likewise designed in a plane manner and is arranged perpendicularly to the carrier rotation axis T.

(200) In contrast to the embodiment variant according to FIG. 10a-10d, the peripheral, projecting connection edge 274 on the bristle anchoring body 263 comprises a peripheral step which is directed to the carrier rotation axis T and which departing from a face end surface forms a contact shoulder 267 which is with a shoulder surface and which is set back inwards along the carrier rotation axis T. The shoulder surface is designed in a plane manner and is arranged perpendicularly to the carrier rotation axis T.

(201) The base element 271 for its part comprises a peripheral edge 275 which forms a connection contact surface for the shoulder surface on the projecting connection edge 274 of the bristle anchoring body 263, said connection contact surface being arranged perpendicularly to the carrier rotation axis T. The bristle anchoring body 263 is then connected to the base element 271 via the shoulder surface of the contact shoulder 276 which lies on the connection contact surface of the peripheral edge 275.

(202) The bristle anchoring body 263 lies on the base element 271 merely via the shoulder surface of the contact shoulder 276 on the projecting connection edge 274 via the peripheral edge 275. A cavity is formed within the peripheral edge 275, between the base element 271 and the bristle anchoring body 263.

(203) The connection between the shoulder surface and the connection contact surface is effected by way of (plastic) welding, such as ultrasound welding.

(204) For this, melt elements 273 are arranged on the shoulder surface of the contact shoulder 276. The melt elements 273 project beyond the shoulder surface and are melted on welding. In this manner, the melt elements 273 provide additional plastic material for creating the weld connection.

(205) Furthermore, the bristle anchoring body 263 with a peripheral, outer connection edge section 277 which is delimited at the end side by a face end surface and at the carrier side by the contact shoulder 276 engages over the connection contact surface of the base element 271 at the outer side. The bristle anchoring body 263 with its outer connection edge section 277 overlaps a peripheral surface 279 of the base element 271.

(206) The outer connection edge section 277 serves for the centring of the bristle anchoring body 263 on the base element 271, by way of this forming a centring surface 278 which faces the peripheral surface 279 of the base element 217 and which is aligned parallel to the carrier rotation axis T.

(207) The peripheral surface 279 of the base element 271 which lies opposite the outer connection edge section 277 of the bristle anchoring body 263 or its centring surface 278 is designed in a conically tapering manner in the direction of the bristle anchoring body 263.

(208) According to the embodiment variant according to FIG. 13a-13d which corresponds to a modification of the embodiment variant according to FIG. 12a-12d, the peripheral surface on the base element 371 and which lies opposite the outer connection edge section 377 of the bristle anchoring body 363 or its centring surface 378 is likewise designed in a conically tapering manner in the direction of the bristle anchoring body 363, wherein the peripheral surface 379 of the base element 371 forms a connection contact surface

(209) The centring surface 378 of the outer connection edge section 377 likewise comprises an inclination which corresponds to the inclination of the peripheral surface 379 on the base element 371. In this manner, an extensive connection between the centring surface 378 and the peripheral surface 379 is formed on attaching the bristle anchoring body 363 on the base element 371.

(210) Here too, the connection between the centring surface 378 and the peripheral surface 379 is effected by way of (plastic) welding such as ultrasound welding. For this, the melt elements 373 which are already described further above are arranged in the peripheral surface 379.

(211) Analogously to the embodiment variant according to FIG. 12a-12c, the peripheral, projecting connection edge 374 on the bristle anchoring body 363 comprises a peripheral step which is directed to the carrier rotation axis T and which departing from a face end surface forms a contact shoulder 376 with a shoulder surface, said contact shoulder being set back inwards along the carrier rotation axis T. The shoulder surface 376 is designed in a plane manner and is arranged perpendicularly to the carrier rotation axis T. In contrast to the embodiment variant according to FIG. 12a-12c, the contact shoulder 376 here however is designed in a significantly narrower manner.

(212) The base element 371 for its part comprises a peripheral edge 375 which connects onto the peripheral surface and which on the projecting connection edge 374 of the bristle anchoring body 263 forms a connection contact surface for the shoulder surface on the contact shoulder 376. This is arranged perpendicularly to the carrier rotation axis T.

(213) The bristle anchoring body 363 is now additionally connected to the base element 371 via the shoulder surface of the contact shoulder which lies on the connection contact surface. The connection corresponds to an aforementioned weld connection.

(214) A cavity is likewise formed within the peripheral edge 375 of the base element 371, between the base element 371 and the bristle anchoring body 363.

(215) The aforedescribed second variant and its modification can also comprise positioning aids for fixing a defined angular position of the bristle anchoring body.

(216) It is of course possible to design the centring in a multi-step manner with all solutions according to FIGS. 10 to 13. This means that for example several truncated-cone-shaped bodies with successively different diameters and heights can be realised, or that a centring via a truncated-cone-shaped body can be effected additionally to a centring type.

(217) The brush head 461 according to the embodiment according to FIG. 14a-14d is characterised by extensive, lamellae-shaped care elements 473 which are anchored in the bristle carrier 462. The lamellae-shaped care elements 473 are designed in a wave-shaped or arched manner in a plan view.

(218) The brush head 561 according to the embodiment according to FIG. 15a-15c is characterised in that the bristle field is composed of an outer-lying, first circle 563 of bristle bundles 566, of a second circle of bristle bundles 566 which lies within the first circle 563 as well as of a centre 565 with two bristle bundles 566. The two circles 563, 564 of bristle bundles are arranged concentrically about the carrier rotation axis T.

(219) The bristle bundles 566 of the outer-lying first circle 563 have an inclination in the peripheral direction relative to the carrier rotation axis T of 17°.

(220) The bristle bundles 566 of the second circle 564 which lies within the first circle 563 likewise have an inclination in the peripheral direction relative to the carrier rotation axis T of 8°. However, the inclination of the bristle bundles 566 of the second circle 564 is opposite to the inclination of the bristle bundles 566 of the first circle.

(221) Both bristle bundles in the centre are aligned parallel to the carrier rotation axis T.

(222) The bristle length is different within the individual bristle bundle of the outer-lying circle 563 of bristle bundles to the extent that a step is formed in the care-side end of the bristle bundles 566.

(223) FIGS. 16a to 16g show a further attachment brush housing 621 with a housing neck 622 and with a housing head 642 which connects to the housing neck at the brush head side. With the exception of a certain deviation which is explained further blow, the design corresponds essentially to FIGS. 3a to 3g.

(224) The housing neck 622 is a tubular body with a continuous receiver which at the hand part side ends in the receiver opening 629 and at the brush head side runs out in the bristle carrier receiver 643 of the housing head 642.

(225) The housing neck 622 serves for receiving the drive rod 91, 891 as well as the securing element 121, 721 (see also FIGS. 8d and 8e).

(226) The housing neck 622 comprises a hand-part-side, first receiving section 623 which connects onto the hand-part-side receiver opening 629 in the direction of the brush head 61, for receiving the securing element 121. Furthermore, a brush-head-side second receiving section 624 for receiving the drive rod 91, 891 connects onto the first receiving section 623 in the direction of the brush head 61 (see also FIGS. 8d and 8e).

(227) A pin receiver body 625 with a pin receiver 626 for receiving the bearing pin 96, 896 of an already described drive rod 91, 891 is arranged at the brush-head-side end of the second receiving section 624. The pin receiver body 625 is arranged on the rear-side housing wall and projects from this into the second receiving section 624. The pin receiver body 625 further projects with a longitudinal section into the bristle carrier receiver 643 of the housing head 642.

(228) The pin receiver 626 is designed as a blind hole and has a longitudinal axis which lies in the control rotation axis S. The pin receiver 626 forms a hand-part-side pin receiver opening.

(229) Two through-openings 632 which lie opposite one another are arranged in the housing wall of the housing neck 622 in the transition from the first to the second receiving section 623, 624. These serve for receiving the latching lugs 131, 731 on the latching tongues 130, 730 on the securing element 121, 721 (see also FIG. 8d).

(230) One or more grooves can be arranged around the periphery in the first receiving section, and these grooves in the first receiving section lie in the direction of the second receiving section, shown in the FIGS. 16g and 16f Two grooves 635 which are axially incorporated in the attachment brush housing 621 at the same location or at the same height and each cover a part of the periphery are preferably formed. In the assembled state, these interact with prominences 736 which are shaped out in the alternative securing element 721 (see FIGS. 17a to 17g). Together, they lead to a very stable assembly.

(231) Furthermore, the slot-like through-openings 633, 650 which have already been described with regard to FIGS. 2a-2g are represented in the housing wall of the attachment brush part 621, in the housing neck 622 as well as in the housing head 642, and these serve for the passage of water for cleaning the attachment brush part 2.

(232) Furthermore, the withdrawal ribs 634 which have already been described with regard to the FIGS. 2a-2g are represented on the outer side of the housing neck 622.

(233) The housing head 642 forms a beaker-like bristle carrier receiver 643 which is open to the front side via a carrier receiver opening 644. The bristle carrier receiver 643 serves for receiving the already described function unit 64 of the bristle carrier 62.

(234) The carrier receiver opening 644 is delimited by a peripheral face end surface 645 which has different widths along its circular outer periphery. The different widths of the face end surface 645 are based on different wall thicknesses in the housing head 642.

(235) A mounting sleeve 647 with a feed-through opening 648 for leading through an already described bearing pin 111 from the rear side of the housing head 642 is arranged in the bristle carrier receiver 643.

(236) The mounting sleeve 647 forms a peripheral, annulus-shaped stop shoulder 651 which is directed to the front side and which encompasses a cylinder-shaped end section 652 of the bearing sleeve. The stop shoulder 651, with a face end surface of the limitation cam 646 which is directed to the brush head 61 lies in one plane.

(237) The cylinder-shaped end section 652 of the mounting sleeve 647 engages into the aforedescribed cylinder receiver 70 on the function unit 64 and with the face end surface 69 lies on a contact shoulder 68 which is likewise described hereinafter and which surrounds a bearing pin receiver 65 (see also FIG. 8f).

(238) A depression 649 for receiving the pin head 115 of the bearing pin 111 is provided on the rear side of the housing head.

(239) A limitation cam 646 which is designed trapezoidally in cross section and which tapers from its free end (at the upper side) to its base on the mounting sleeve 647 is arranged in the bristle carrier receiver 643. The delimitation cam 646 is arranged on the outer wall of the bearing mounting 647 and is connected to this. Departing from the mounting sleeve 647, the delimitation cam 646 is directed towards the outermost head end along the control rotation axis S. Furthermore, the delimitation cam 646 is connected to the rear-side housing wall.

(240) A connection rib 627 which connects the mentioned elements to one another is arranged between the mounting sleeve 647 and the already mentioned pin receiver body 625. The connection rib 627 is moreover connected to the rear-side housing wall. The connection rib 627 is shaped as an arrow-like element of an arrow shank 636 and an arrow tip 637. This automatically entails a larger (face-)end surface, which is also a support or a tilt limitation for the brush head.

(241) The pin receiver 626 of the pin receiver body 625, the connection rib 627, the feed-through opening 648 of the mounting sleeve 647 and the delimitation cam 646 are arranged in a common plane, in which the control rotation axis S also lies.

(242) The alternative securing element 721 according to FIGS. 17a-17g is designed in a sleeve-like manner and forms a continuous sleeve cavity. The design basically corresponds to FIGS. 5a to 5g, with the exception of a certain difference in principle which is explained further below.

(243) The securing element 721 comprises a brush-head-side, first sleeve section 722 for receiving and supporting the hand-part-side end section of the drive rod 91, 891.

(244) The first sleeve section 722 comprises an annular cross-sectional narrowing in the form of an inner ring. The annular cross-sectional narrowing 728 forms an annular stop surface 725 which faces the brush head 61. The stop surface 725 is orientated perpendicularly to the control rotation axis S. The annular cross-sectional narrowing 728 further forms a cylinder-shaped receiving section 729 for receiving the described stop cylinder 101, 801 of the drive rod 91, 891.

(245) The cylinder-shaped receiving section 729 serves for the pre-centring of the drive rod 91, 891 via the stop cylinder 101, 801 of the drive rod 91, 8981 which engages into this section. The diameter of the cylinder-shaped receiving section 729 is larger than that of the stop cylinder 101, 801 which engages into this.

(246) In this manner, the stop cylinder 101, 801 is led with play in the cylinder-shaped receiving section 729, by which means no friction occurs between the lateral cylinder surfaces.

(247) The stop surface 725 serves for the mounting of a stop shoulder 102, 802 which is peripheral about the stop cylinder 101, 801 and which is on the drive rod 91, 891 (see FIGS. 8d and 8e).

(248) Two latching tongues 730 which lie opposite one another and are each with an outwardly directed latching lug 731 are arranged in the extension of the sleeve wall of the first sleeve section 722. The latching tongues 730 which are directed in the direction of the brush head 61 are exposed and lie in the extension of the sleeve wall. The latching tongues 730, more specifically the latching lugs 731 serve for axially securing the securing element 721 on the housing neck 22, 622 by way of the mentioned latching lugs 731 engaging into the already mentioned through-openings 32, 632 on the housing neck 22, 622 (see FIG. 8d).

(249) Prominences 736 which are arranged axially at the same height on the periphery of the securing part 721 and which latch into corresponding grooves 635 on the attachment brush housing 621 are designed as further elements for the retention of the securing part 621 in the attachment brush housing. These prominences and grooves are latched into one another on inserting the parts into one another. These are attached to the cylinder-shaped receiving section 729 axially roughly above the annular cross-sectional narrowing 728.

(250) Furthermore, the securing element 721 comprises a hand-part-side, second sleeve section 723 with a nub receiver 727 for receiving the coupling nub 12 of the hand part 10. The second sleeve section 723 thus forms a coupling section.

(251) The securing element 721 consequently also serves for the connection of the attachment brush part 2 to the hand part 10. The nub receiver 727 has an inner geometry which is adapted to the cross-sectional geometry of the coupling nub 12.

(252) The nub receiver 727 in the region of the nub receiver opening 733 comprises a funnel-like widening 732 which serves as an insertion aid for the coupling nub 12.

(253) The nub receiver 727 further comprises displacement ribs 735 which serve for creating a well-pronounced press fit/seat. The displacement ribs 735 run parallel to the longitudinal axis L of the body care brush or to the attachment direction.

(254) The outer surfaces of the sleeve sections 722, 723 are designed in a conical manner and taper towards the brush head 61. The insertability of the securing element 721 into the conically designed housing neck 22, 622 is ensured by way of this.

(255) A reinforced tapering which is designed in the form of a step or an annularly peripheral cone surface can be formed in the direction of the brush-side sleeve section, in the transition region from the hand-part-side to the brush-side sleeve section.

(256) The outer surface of the securing element 721 can further comprise ribs 734 which extend over both sleeve sections 722, 723. The ribs 734 are aligned essentially parallel to the longitudinal direction of the body care brush. The ribs towards the brush-side, first sleeve section 722 can merge into the latching tongues 730.

(257) Furthermore, geometries which correspond to the U-shaped slot of the latching tongue 31, 631 of the attachment brush housing are created on the rear side of the securing element 721. Two stumps or projections 737 are shaped on the hand-part-side end of the securing element 721 and these bear on the end of the U-shaped slot in the assembled state. Furthermore, these stumps can be provided with a ramp, so that the insertion of the securing element into the attachment brush housing and therefore also the moving of the stumps into the U-shaped recess is assisted.

(258) Furthermore, the securing element 721 comprises an annular insert limitation flange 724 on its hand-part-side end in the region of the nub receiver opening 733, said flange having already been described further above. As already described, the insert limitation flange ensures that the securing element 721 is not completely inserted into the housing neck 22, 622.

(259) The drive rod 891 according to FIGS. 18a-18g comprises a hand-part-side end section 894 as well as a brush-head-side end section 895. The design basically corresponds to the FIGS. 6a to 6g with the exception of a certain difference which is explained further below.

(260) The drive rod 891 forms a control pin receiver 899 for receiving the end section of the control pin 13, on the hand-part-side end section 894. The drive rod 891 is designed annularly in this section. The longitudinal axis of the control pin receiver 899 lies on the control rotation axis S.

(261) The control pin receiver 899 has a circular-cylinder-shaped basic cross section. In the brush-head-side end section, the control pin receiver 899 has a circle-segment-shaped cross-sectional narrowing 800 with respect to the circular basic cross section. This ensures a positive receiving of the control pin 13 in the control pin receiver 899 and thus a rotation lock (see FIGS. 8d and 8e).

(262) Moreover, the drive rod 891 comprises an annular stop cylinder 801 in the form of a hollow cylinder, in the hand-part-side end section 894 in the extension of the control pin receiver 899. The stop cylinder 801 has a smaller outer diameter than the outer diameter of the receiving section of the drive rod 891 which connects thereto and which is with the control pin receiver 899. Accordingly, a peripheral contact shoulder 802 is formed in the transition from the receiving section to the stop cylinder 801.

(263) The function of the stop cylinder 801 and of the associated stop shoulder 802 have already been explained in the context of the description of the securing element 121, 721.

(264) For transmitting an oscillating rotation movement which is introduced from the control pin 13 into the drive rod 891, from the drive rod 891 onto the brush head 61, the drive rod 891 on its brush-head-side end section comprises a first toothing 892 with two teeth 892.1 for meshing into a second toothing 66 on the bristle carrier 62 of the brush head 61 which is described further below.

(265) The first toothing 892 which is directed to the front side, with the second toothing 66 of the bristle carrier 62 forms a drive toothing for this.

(266) The face end surfaces of the two teeth 892.1 of the first toothing 892, via which the meshing with the teeth 66.1 of the second toothing 66 is effected, have an inclination with respect to the control rotation axis S.

(267) The drive rod 891 at its brush-head-side end section 895 further forms a bearing pin 896 whose longitudinal axis runs in the control rotation axis S. As already mentioned, in the assembled state the bearing pin 896 is rotatably mounted in the pin receiver 26, 626 of the attachment brush housing 21, 621 (see FIGS. 8d and 8e).

(268) The drive rod 891 is consequently rotatably mounted and axially as well as radially secured with its brush-head-side end section 895 on the attachment brush housing 21, 621 via the bearing pin 896 and with its hand-part-side end section 894 on the securing element 121, 171 via the stop cylinder 801 with the stop shoulder 802 (see FIG. 8c as well as FIGS. 8d and 8e).

(269) The drive rod 891 in a brush-head-side end section 895 now forms a cross-sectional recess which is delimited to the hand-part-side end section by a bearing pin shoulder 897. The bearing pin 896 is now arranged on this bearing pin shoulder 897.

(270) The aforementioned first toothing 892 is arranged on the brush-head-side end section of a rod continuation 898, said continuation departing from the bearing pin shoulder 897 extending in the direction of the brush-head-side end. The rod continuation 898 runs parallel to the bearing pin 896. A recess is provided between the rod continuation 898 and the bearing pin 896.

(271) The bearing pin 896, departing from the bearing pin shoulder 897 comprises a cylindrical base section as well as a conically tapering, free end section (see in particular FIGS. 18f and 18g).

(272) The bearing pin 896 is arranged behind the first toothing 892 considered from the front side.

(273) The drive rod 891 further comprises a curvature (see FIG. 18f). A first hand-part-side longitudinal section of the drive rod 891 runs parallel to the control rotation axis S, whilst a second brush-head-side longitudinal section is inclined towards the front side with respect to the control rotation axis S.

(274) A brush-head-side end section 895 however again runs parallel with respect to the control rotation axis S. This means that the arcuate section is arranged between the hand-part-side longitudinal section of the drive rod 891, comprising the hand-part-side end section 894, and the brush-head-side end section 895.

(275) The drive rod 891 between a hand-part-side longitudinal section or end section 894 and a brush-head-part-side end section 895 comprises a necking section 805 which lies therebetween and which has a smaller diameter than in the hand-part-side and brush-head-part-side longitudinal or end section. The drive rod 891 can taper conically from the hand-part-side and brush-head-part-side longitudinal section or end section towards the necking section 805.

(276) The inclination of the drive rod 891 which is described above in particular runs in the necking section 805.