TOOTHBRUSH

Abstract

A toothbrush including a main body with a grip part as well as a brush head which forms a bristle field with a plurality of care bristles.

Claims

1-46. (canceled)

47. A toothbrush comprising a main body with a grip part as well as a brush head which forms a bristle field with a plurality of care bristles, wherein the main body consists of wood and wherein the brush head comprises a brush head body for receiving care bristles, the brush head body being connected to the main body.

48. The toothbrush according to claim 47, wherein the brush head body is made of plastic.

49. The toothbrush according to claim 47, wherein the main body at a brush-head-side end section forms a connection section, via which the brush head body is connected to the main body.

50. The toothbrush according to claim 47, wherein the brush head body forms at least one bristle hole which receives at least one care bristle.

51. The toothbrush according to claim 50, wherein the at least one bristle hole is designed as a blind hole and comprises a bristle hole base.

52. The toothbrush according to claim 47, wherein the brush head body and the connection section of the main body each comprise a positive-fit geometry via which a positive connection is formed between the brush head body and the connection section.

53. The toothbrush according to claim 52, wherein the positive-fit geometry is a latching geometry.

54. The toothbrush according to claim 52, wherein the positive-fit geometries each comprise deepenings and/or prominences which engage into one another.

55. The toothbrush according to claim 53, wherein the positive-fit geometries comprise saw-tooth structures which mesh into one another.

56. The toothbrush according to claim 47, wherein the brush head body is designed as a separate component which is connected to the main body by a separate joining step.

57. The toothbrush according to claim 47, wherein the brush head body forms a receiver for receiving a connection section of the main body.

58. The toothbrush according to claim 57, wherein a positive-fit geometry, with at least one prominence and/or deepening is formed in the receiver.

59. The toothbrush according to claim 47, wherein the brush head body is designed in a manner removable from the main body or from the connection section of the main body.

60. The toothbrush according to claim 59, wherein the brush head body comprises a separating aid, for the purpose of pulling off the brush head body from the main body or from the connection section of the main body.

61. The toothbrush according to claim 60, wherein the detachment element forms a wall section of the receiver.

62. The toothbrush according to claim 47, wherein the brush head body is designed as an exchangeable head and is releasably connected to the main body.

63. The toothbrush according to claim 48, wherein the brush head body is connected to the connection section via a positive and/or non-positive connection, wherein at least one engagement element of the brush head body engages into at least one engagement deepening on the connection section.

64. The toothbrush according to claim 48, wherein the brush head body is press-fit stemmed to the connection section.

65. The toothbrush according to claim 63, wherein the at least one engagement element is formed by at least one surface section of a bristle hole base.

66. The toothbrush according to claim 63, wherein the at least one engagement element is designed in a lobe-like manner.

67. The toothbrush according to claim 66, wherein the at least one engagement element projects into the engagement deepening at an angle of more than 0° and less than 90° relative to the surface of the connection section, into which surface the engagement deepening is recessed.

68. The toothbrush according to claim 63, wherein the at least one engagement element which projects into the at least one engagement deepening in the connection section is directed with a free end towards the brush head end.

69. The toothbrush according to claim 47, wherein the brush head body is injected onto the main body.

70. The toothbrush according to claim 47, wherein the front side and the rear side of the grip part of the main body comprise a profiling.

Description

[1099] The subject-matter of the invention is hereinafter explained in more detail by way of particular embodiments which are represented in the accompanying figures. Shown schematically in each case are:

[1100] FIG. 1a: a perspective view of a toothbrush which is known from the state of the art, from the front side;

[1101] FIG. 1b: a perspective view of the toothbrush according to FIG. 1a from the rear side;

[1102] FIG. 1c: a plan view of the toothbrush according to FIG. 1a;

[1103] FIG. 1d: a lateral view of the complete toothbrush according to FIG. 1a with care bristles;

[1104] FIG. 1e: a rear view of the toothbrush according to FIG. 1a;

[1105] FIG. 1f: a longitudinal plan view of the toothbrush according to FIG. 1a from the rear;

[1106] FIG. 1g: a longitudinal plan view of the toothbrush according to FIG. 1a from the front;

[1107] FIG. 2a: a perspective view of a toothbrush according to the invention from the front side;

[1108] FIG. 2b: a perspective view of the toothbrush according to FIG. 2a from the rear side;

[1109] FIG. 2c: a further perspective view of the toothbrush according to FIG. 2a from the front side;

[1110] FIG. 2d: a further perspective view of the toothbrush according to FIG. 2b from the rear side, FIG. 2e: a rear view of the toothbrush according to FIG. 2a;

[1111] FIG. 2f: a lateral view of the complete toothbrush according to FIG. 2a with bristles;

[1112] FIG. 2g: a plan view of the toothbrush according to FIG. 2a;

[1113] FIG. 2h: a longitudinal plan view of the toothbrush according to FIG. 2a from the rear;

[1114] FIG. 2i: a longitudinal plan view of the toothbrush according to FIG. 2a from the front;

[1115] FIG. 3a: a perspective view of a brush head body according to the invention, from the front side;

[1116] FIG. 3b: a perspective view of the brush head body according FIG. 3a from the rear side;

[1117] FIG. 3c: a further perspective view of the brush head body according to FIG. 3a from the rear side;

[1118] FIG. 3d: a further perspective view of the brush head body according to FIG. 3b from the rear side;

[1119] FIG. 3e: a lateral view of the brush head body according to FIG. 3a;

[1120] FIG. 3f: a longitudinal plan view of the brush head body according to FIG. 3a from the rear;

[1121] FIG. 3g: a longitudinal plan view of the brush head body according to FIG. 3a from the front;

[1122] FIG. 3h: a rear view of the brush head body according to FIG. 3a;

[1123] FIG. 3i: a plan view of the brush head body according to FIG. 3a;

[1124] FIG. 3j: a cross-sectional view of the brush head body according to FIG. 3i along the section line A-A;

[1125] FIG. 3k: a cross-sectional view of the brush head body according to FIG. 3i along the section line B-B;

[1126] FIG. 4a: a perspective view of a main body according to the invention from the rear side;

[1127] FIG. 4b: a perspective view of the main body according to FIG. 4a from the front side;

[1128] FIG. 4c: a further perspective view of the main body according to FIG. 4a from the rear side;

[1129] FIG. 4d: a further perspective view of the main body according to FIG. 4b from the front side;

[1130] FIG. 4e: a rear view of the main body according to FIG. 4a;

[1131] FIG. 4f: a lateral view of the main body according to FIG. 4a:

[1132] FIG. 4g: a plan view of the main body according to FIG. 4a;

[1133] FIG. 4h: a longitudinal plan view of the main body according to FIG. 4a from the rear;

[1134] FIG. 4i: a longitudinal plan view of the main body according to FIG. 4a from the front;

[1135] FIG. 5a: a cross-sectional view through a bristle hole in the brush head of a toothbrush to be manufactured according to FIGS. 2a to 2i before the assembly of the care bristles;

[1136] FIG. 5b: a cross-sectional view through the bristle hole according to FIG. 5 with a reshaping stamp in the ready position;

[1137] FIG. 5c: a cross-sectional view through the bristle hole according to FIG. 5a with an reshaping stamp inserted into the bristle hole, before the press-fit stemming;

[1138] FIG. 5d: a cross-sectional view through the bristle hole according to FIG. 5a after the press-fit stemming;

[1139] FIG. 5e: a cross-sectional view through the bristle hole according to FIG. 5a with inserted care bristles;

[1140] FIG. 6: a process course for manufacturing a toothbrush with a head part of wood;

[1141] FIG. 7: a process course for manufacturing a toothbrush with a brush head body;

[1142] FIG. 8a: a plan view of a toothbrush according to a further embodiment:

[1143] FIG. 8b: a lateral view of the complete toothbrush according to FIG. 8a with bristles;

[1144] FIG. 9a: a plan view of a wet shaver;

[1145] FIG. 9b: a plan view of the wet shaver according to FIG. 9a with a separated blade head;

[1146] FIG. 10a: a perspective view of a further embodiment of a toothbrush according to the invention, from the front side;

[1147] FIG. 10b: a perspective view of the toothbrush according to FIG. 10a from the rear side;

[1148] FIG. 10c: an enlarged perspective view of the rear side of the brush head of the toothbrush of FIG. 10b;

[1149] FIG. 11a: a perspective view of the brush head body according to the toothbrush of FIG. 10a from the front;

[1150] FIG. 11b: a perspective view of the brush head body according to the toothbrush of FIG. 10a from the rear;

[1151] FIG. 12a: a perspective view of the main body according to the toothbrush of FIG. 10a from the front;

[1152] FIG. 12b: an enlarged perspective view of interface of the main body of the toothbrush of FIG. 12b;

[1153] FIG. 12c: an enlarged lateral view of the interface of the main body of the toothbrush of FIG. 12b;

[1154] FIG. 13a: a perspective view of a further embodiment of a toothbrush according to the invention, from the front side;

[1155] FIG. 13b: a longitudinal section through the thumb region of the toothbrush of FIG. 13a according to a first embodiment variant;

[1156] FIG. 13c: a longitudinal section through the thumb region of the toothbrush of FIG. 13a according to a second embodiment variant;

[1157] FIG. 13d: a longitudinal section through the head region of the toothbrush of FIG. 13a;

[1158] FIG. 14a: a perspective view of a further embodiment of a toothbrush according to the invention from the rear side;

[1159] FIG. 14b: a plan view of the toothbrush according to FIG. 14a;

[1160] FIG. 14c: a lateral view of the toothbrush according to FIG. 14a;

[1161] FIG. 14d: a perspective view of the main body of the toothbrush according to FIG. 14a from the rear side;

[1162] FIG. 14e: an enlarged detail (A) of the perspective view of the main body from FIG. 14d;

[1163] FIG. 14f: a perspective view of the brush head body of the toothbrush according to the invention of FIG. 14a;

[1164] FIG. 15a: a perspective view of a further embodiment of a toothbrush according to the invention from the front side;

[1165] FIG. 15b: a plan view of the toothbrush according to FIG. 15a;

[1166] FIG. 15c: a lateral view of the toothbrush according to FIG. 15a;

[1167] FIG. 15d: a perspective view of the main body of the toothbrush according to FIG. 15a from the front side;

[1168] FIG. 15e: a plan view of the main body of the toothbrush according to FIG. 15a;

[1169] FIG. 15f: a lateral view of the main body of the toothbrush according to FIG. 15a;

[1170] FIG. 15g: a perspective view of the brush head body of the toothbrush according to FIG. 15a from the front side;

[1171] FIG. 15h: a longitudinal section through the brush head body of the toothbrush according to FIG. 15a;

[1172] FIG. 15i: a longitudinal section through the toothbrush according to the invention and

[1173] FIG. 15a in the region of the connection section;

[1174] FIG. 16a: a perspective view of a further embodiment of a toothbrush according to the invention from the front side;

[1175] FIG. 16b: a perspective view of a further embodiment of a toothbrush according to the invention and FIG. 16a from the rear side;

[1176] FIG. 16c: a lateral view of the toothbrush according to FIG. 16a;

[1177] FIG. 16d: a plan view of the toothbrush according to FIG. 16a;

[1178] FIG. 16e: a lateral view of the main body according to the toothbrush according to FIG. 16a after the first profiling step;

[1179] FIG. 16f: a plan view of the main body of the toothbrush according to FIG. 16a after the first profiling step.

[1180] The present invention is not limited to the embodiments or design variants which are represented in the figures.

[1181] Features which are disclosed in the context of certain embodiment examples or figures can be also be conferred upon other embodiment examples or figures which show the same or similar features or manifestations and in which the features or manifestations are however not described or represented to the same degree with regard the detail.

[1182] Basically, in the figures, the same parts are provided with the same reference numerals.

[1183] FIGS. 1a to 1e show an embodiment example of a toothbrush 1 with a main body 2 of wood.

[1184] The main body 2 comprises a front side 10 as well as a rear side 11 which lies opposite this. The two sides are designed in a plane manner (see FIGS. 1a and 1 b). Furthermore, the main body 2 considered with a view onto the front side 10 comprises a left longitudinal narrow side 12 as well as a right longitudinal narrow side 13 which connect the front side 10 and the rear side 11 to one another via a chamfered edge 16 as well as laterally delimit these.

[1185] The main body 2 comprises a grip part 3 as well as a head part 5 which is connected to the grip part 3 via a neck section 4. The neck section 4 is characterised by a cross-sectional reduction, i.e. narrowing between the grip part 3 and the head part 5.

[1186] In the head part 15, the main body 2 forms a front face side 14 as well as in the grip part 3 a rear face side. The front face side 14 in the head part 5 is rounded between the two longitudinal narrow sides 12, 13.

[1187] The head part 5 on the front side forms a bristle field 9 of a plurality of care bristles 7. The care bristles 7 for the sake of a better overview are only represented in FIG. 1d. For receiving the care bristles 7, the head part 5 on its front side forms a plurality of bristle holes 6 (see FIG. 1c).

[1188] The care bristles 7 are anchored into the bristle holes 6 of the head part by way of a conventional anchor punching method.

[1189] The head part 5 together with the care bristles 7 forms the brush head 8 of the toothbrush 1.

[1190] FIGS. 2a to 2i show an embodiment of a toothbrush 21 according to the invention with a main body 22 of wood. The main body 22 is yet shown separately on the FIGS. 4a to 4i.

[1191] The main body 22 comprises a front side 30 as well as a rear side 31 which lies opposite this. Furthermore, the main body 22 considered in the direction of the front side 30 comprise a left longitudinal narrow side 32 as well as a right longitudinal narrow side 33 which connect the front side 30 and the rear side 31 to one another as well as laterally delimit these. The longitudinal narrow sides 32, 33 in cross-sectional view are rounded between the front side 30 and the rear side 31. The rounding faces outwards. Accordingly, the edges 36 between the front side 30 and the longitudinal narrow sides 32, 33 or the rear side 31 and the longitudinal narrow sides 32, 33 are also rounded.

[1192] The main body 22 comprises a grip part 23 as well as a connection section 25 which is connected to the grip part 23 via a neck section 24. The neck section 24 is characterised by a cross-sectional narrowing towards the connection section 25 with respect to the grip part 23.

[1193] In the connection section 25, the main body 22 forms a front face side 34 as well as in the grip part 23 a rear face side 35.

[1194] The toothbrush 21 according to the invention further comprises a brush head body 40 which is stuck onto the main body 22 and is connected to this body via the connection section 25. The brush head body 40 is an injection moulded part of plastic. The brush head body 40 is yet represented separately in FIGS. 3a-3k.

[1195] The brush head body 40 together with the connection section 25 as well as the care bristles 327 forms the brush head. The toothbrush 21 on the front side of the brush head body 40 accordingly forms a bristle field 29 of a plurality of care bristles 27. The care bristles 27 are only shown in FIG. 2f for the purpose of a better overview.

[1196] For receiving the care bristles, 27, the brush head body 40 on its front side forms a bristle hole field with a plurality of bristle holes 26a, 26b.

[1197] On its rear side, the brush head body 40 forms a connection interface in the form of a slot-like receiver or receiving groove 45, which is orientated in the longitudinal direction of the main body 22 or of the toothbrush 21 and via which the brush head body 40 is stuck or pushed onto the connection section 25 of the main body 22 and is connected to this.

[1198] The slot-like receiver or receiving groove 45 comprises a slot opening 46 which is arranged on the rear side and which runs in the longitudinal direction L of the main body 22 or of the toothbrush 21.

[1199] The slot-like receiver or receiving groove 45 comprises a face-side insert opening 47 for inserting or pushing the connection section 25 into the slot-like receiver or receiving groove 45. The insert opening 47 is directed towards the grip part 23 of the main body 22 in the assembled state.

[1200] The cross-sectional geometry of the slot-like receiver or receiver groove 45 is trapezoidal. The trapezium shape has a longer base side which is directed to the front side, as well as a shorter base side which is directed to the rear side and which in the assembled state is arranged in the slot opening 46. The two trapezium limbs which connect the two base sides to one another taper to one another towards the shorter base side (see FIG. 3k).

[1201] The slot-like receive or receiving groove 45 is designed in a conically tapering manner towards the head end (see FIG. 3h).

[1202] The cross-sectional geometry of the connection section 25 is trapezoidal. The trapezium shape has a longer base side which is directed towards the front side of the toothbrush 21 as well as a shorter base side which is directed towards the rear side of the toothbrush 21. The two trapezium limbs which connect the base sides to one another taper to one another towards the shorter base side (see FIGS. 4a and 4i).

[1203] The connection section 25 is designed in conically tapering manner towards its free end (see FIG. 4e).

[1204] The cross-sectional geometry of the slot-like receiver or receiving groove 45 is inverted to the cross-sectional geometry of the connection section 25 of the main body 22, so that the connection section 25 with the slot-like receiver or receiving groove 45 forms a positive or frictional fit on joining together.

[1205] For creating the connection between the main body 22 and the brush head body 40, the brush head body 40 is stuck or pushed onto the connection section 25 of the main body 22. For this, the connection section 25 is stuck or pushed with its the front side 34 in front, through the face-side insert opening 47 on the brush head body 40 into the slot-like receiver or receiving groove 45 of the brush head body 40.

[1206] The stick-on or push-on movement runs in the longitudinal direction L of the main body 22 in the direction of the grip part 23.

[1207] The stick-on direction is merely a provisory fastening since the connection is releasable again by way of pulling off the brush head body 40.

[1208] The brush head body 40 is press-fit stemmed to the connection section 25 for creating a non-releasable connection. The press-fit stemming is effected via bristle holes 26a which are arranged over the connection section 25. In the present embodiment example, this relates to the inner-lying rows of bristle holes 26a (see FIG. 3i). The bristle holes 26a are designed as blind holes and have a bristle hole base 41 (see FIG. 3j).

[1209] The sequence of the press-fit stemming procedure is represented in FIGS. 5a to 5e.

[1210] In a first step, the brush head body 40 is stuck onto connection section 25 as already described above. The bristle holes 26a do not yet comprise care bristles (see FIG. 5a).

[1211] A notching stamp 61 with a wedge-like active section is inserted into a bristle hole 26a and is moved towards the bristle hole base 41 which bears on the connection section 25 (see FIG. 5b, 5c).

[1212] The bristle hole base 41 is partially broken out of the brush head body 40 by way of the advanced notching stamp 61, but a connection zone 65 remain connected to the brush head body 40 (see FIG. 5d).

[1213] The partially broken-out or pressed-out bristle hole base 41 forms a lobe-like engagement element 63. The lobe-like engagement element 63 forms a free end section 66 with a front end-face 67 which lies opposite the connection zone 65. Furthermore, the lobe-like engagement element forms the lateral end-faces 68.

[1214] A notch 64 is pressed into the connection section 25 by the wedge-like active section of the notching stamp 61 simultaneously with the breaking or pressing of the bristle hole base 41 out of the brush head body 40. The compliant wood material is compressed in the region of the notch 64 (see FIG. 5d).

[1215] The lobe-like engagement element 63 is pressed into the notch 64 by the notching stamp 61 and projects into the notch 64 at an angle of 45° relative to the surface of the connection section 25, into which surface the bristle hole 26a is recessed.

[1216] According to the present embodiment example, the connection zone 65 in a plan view of the toothbrush 21 is arranged in front of the free end section 66 of the lobe-like engagement element 63 considered in the direction of the brush head end. On applying a pull-out force upon the brush head body 40, accordingly a pressure acts upon the front end-face 67 of the free end section 66 of the press-fit stemmed engagement element 63.

[1217] The notching stamp 61 is pulled out of the bristle hole 26a subsequently to the press-fit stemming (FIG. 5d).

[1218] In a subsequent method step, the respective bristle hole 26a is bristled with care bristles 27 by way of an anchor punching method. For this, several filaments 42 are bent in a U-shaped manner and are inserted or punched into the bristle hole 26a by way of a punch (not shown). With this procedure, an anchor element 44 is also inserted into the bristle hole 26a which is placed in the U-shaped end section of the bent filaments 42. The anchor element 44 is wedged to the bristle hole walls, by which means the filaments 42 are anchored in the bristle hole 26a and form a bristle bundle of care bristles 27 (FIG. 5e).

[1219] The wedged anchor element 44 as well as the care bristles 27 which are anchored by this have blocking effect or form an obstacle to the moving-back of the lobe-like engagement element 63 out of the notch 61 into the bristle hole 26a.

[1220] Of course, the bristle holes 26b can also be provided with care bristles 27.

[1221] FIG. 6 in a sequence diagram once again shows the basic method steps for manufacturing a main body with a head part of wood as well as a toothbrush with such a main body.

[1222] The manufacturing method comprises: [1223] the manufacturing of planks from a tree trunk; [1224] the cutting of blanks out of the planks; [1225] the shaping and profiling of a main body from a blank by way of a material-removing machining and possibly by way of a reshaping step; [1226] the treatment of the surface of the main body, such as varnishing, staining, oiling, impregnating; [1227] the drilling of bristle holes in the head part; [1228] the bringing of the care bristles into the bristle holes, e.g. by way of anchor punching, including the profiling and rounding of the care bristles; [1229] the post-machining of the toothbrush, such as cleaning; [1230] the packaging of the toothbrush, e.g. into a box packet.

[1231] FIG. 7 in a sequence diagram once again shows the basic method steps for manufacturing a main body of wood according to the invention as well as a toothbrush according to the invention with such a main body and with a brush head body of plastic.

[1232] The manufacturing method comprises: [1233] the manufacturing of planks from a tree trunk; [1234] the cutting of blanks out of the planks; [1235] the shaping and profiling of a main body from a blank by way of a material-removing machining and possibly by way of a reshaping step; [1236] the treatment of the surface of the main body, such as varnishing, staining, oiling, impregnating; [1237] the shaping of the cross-sectional geometry of the connection section into its final geometry by way of shape pressing; [1238] the sticking of the brush head body onto the connection section; [1239] the press-fit stemming of the brush head body to the connection section; [1240] the attachment or incorporation of the care bristles into the brush head body, e.g. by way of anchor punching in bristle holes including profiling and rounding the care bristles; the post-machining of the toothbrush, such as cleaning; [1241] the packaging of the toothbrush, e.g. in a cardboard packet.

[1242] Furthermore, the manufacturing method also comprises the manufacture of the brush head body by way of injection moulding which is incorporated into the manufacturing method described above.

[1243] The methods which are described above can also be used for the manufacture of other products, as are mentioned further above, e.g. for manufacturing a wet shaver. The brush head body possibly corresponds to a function head body. The bristling step is done away with and is possibly replaced by another production step, by way of which a function head or function element, such a blade head, is connected to the function body, e.g. stuck on.

[1244] The toothbrush 81 which is shown in FIG. 8 represents a further development of the toothbrush according to FIGS. 1a to 1e.

[1245] The main body 82 comprises a front side 90 as well as a rear side 91 which lies opposite this. Furthermore, the main body 82 considered in the direction of the front side 90 comprises a left longitudinal narrow side 92 as well as a right longitudinal narrow side 93 which via a chamfered edge 96 connect the front side 90 and the rear side 91 to one another as well as laterally delimit these.

[1246] The main body 82 comprises a grip part 83 as well as a head part 85 which is connected to the grip part 83 via a neck section 84. The neck section 84 is characterised by a cross-sectional narrowing between the grip part 83 and the head part 85.

[1247] In the head part 85, the main body 82 forms a front face side 94 as well as in the grip part a rear face side 95. The front face side 94 in the head part 85 is rounded between the two longitudinal narrow sides 92, 93.

[1248] The head part 85 on its front side forms a bristle field 99 of a plurality of care bristles 87. The care bristles 87 are only represented in FIG. 8b for the purpose of a better overview. For receiving the care bristles 87, the head part 85 on its front side forms a plurality of bristle holes 86. The care bristles 87 are anchored in the bristle holes 86 of the head part 85 by way of a conventional anchor punching method.

[1249] The head part 85 together with the care bristles 87 forms the brush head 98 of the toothbrush 81.

[1250] The longitudinal narrow sides 92, 93 in a plan view form a curved contour. The curved contour in the grip part 83 effects a first widening of the main body 82, said widening merging into the neck section 84 in the direction of the brush head 91 and into a waisting in the direction of the rear face side 95.

[1251] A thumb rest 89 is formed on the front side of the first widening. The thumb rest 89 is shaped in an oval manner and within the oval shape comprises a structuring in the form of a point pattern. The point pattern is formed from point-like prominences or point-like deepenings 88.

[1252] The point-like deepenings 88 can be formed by way of milling, embossing or burning in. Point-like prominences 88 can be formed by milling, embossing or burning-in in the surface which surrounds these.

[1253] The surface of the thumb rest 89 which surrounds the point-like prominences or deepenings 88 comprises a characterisation such as for example a colour pattern, which contrasts with the wood grain of the main body 82. The characterisation can be effected by way of burning-in, lasering or a printing method.

[1254] The front side of the main body 82 furthermore comprises a closed peripheral strip 100 which follows along the chambered edge 96 and thus the curved contour of the longitudinal narrow sides 92, 93. The strip 100 comprises a colour pattern which contrasts with the wood grain of the main body 82. The strip 100 can be deposited onto the front side by way of burning in, lasering or a printing method.

[1255] The toothbrush 81 as already mentioned comprises a waisting i.e. a narrow section in the main body 82, said waisting merging into the first widening with the thumb rest 89 in the direction of the brush head 91 and into a second widening of the main body 82 in the direction of the rear grip part end.

[1256] The front side of the grip part 83 in a lateral view has a curved contour with alternating thick and thin locations. The grip part 83 thus comprises a first thick location in the region of the thumb rest 89. A further thick location is arranged in the transition from the grip-part-end-side, second widening into the waisting.

[1257] The front side of the neck section 84 as well as the front side of the head part 85 are designed in a plane manner. The rear side of the grip part 83 as well as of the head part 85 are likewise designed in a plane manner. In the neck section 84, the toothbrush 81 has a curvature. The curvature is of a nature such that the brush head 98 is inclined to the front side.

[1258] The wet shaver 101 which is shown in FIGS. 9a and 9b comprises a main body 102 of wood, a blade holder body 105 which is connected to the main body 102, as well as a blade head 107 which is releasably mounted by the blade holder body 105. The blade holder body 105 comprises connection elements 106 for creating a releasable connection to be blade head 107.

[1259] The main body 105 comprises a grip part 103 for holding the wet shaver 101 by the hand as well as a connection section which is not represented and on which the blade holder body 195 is fastened, in particular in a non-releasable manner.

[1260] The main body 105 can be manufactured in an analogous method as the main body for the toothbrush. The associated disclosure in particular with regard to the manufacture of the connection section by way of pressing accordingly also applies here.

[1261] In particular, the connection section is a head-side end section on the main body 102. The blade holder body 105 in particular is stuck onto the connection section and is press-fit stemmed to this. The press-fit stemming can be effected in an analogous manner as the stemming of the brush head body. However, the engagement elements are not formed by the bristle hole base. The engagement elements can be released out of the wall section of the blade holder body 105 in the described way and manner.

[1262] The embodiment example according to FIGS. 9a and 9b on the front side of the main body 102 further comprises a finger rest 108 for laying on the index finger during the use of the wet shaver 101.

[1263] FIGS. 10 to 10c show a further embodiment of a toothbrush 221 according to the invention with a main body 222 of wood. The main body 222 is yet shown separately in the FIGS. 12a to 12c.

[1264] In the present case, the main body 222 in particular is a turned body and comprises a cylindrical basic shape. The main body 222 comprises a grip part 223 as well as a connection section 225 which forms a part of the neck section 224 and is connected to the grip part 223.

[1265] In the connection section 225, the main body 222 forms a front side 234 as well as in the grip part 223 a rear face side 235.

[1266] The toothbrush 221 according to the invention further comprises a brush head body 240 which is stuck onto the main body 222 via the connection section 225 and is connected to this. The brush head body 240 is an injection moulded part of plastic. The brush head body 240 is yet shown separately in FIGS. 11a and 11b.

[1267] The brush head body 240 together with the care bristles 227 forms the brush head 228. The toothbrush 221 on the front side 230 of the brush head body 240 accordingly forms a bristle field of a plurality of care bristles 227. Only a single bristle bundle with care bristles 227 is represented for the purpose of better overview.

[1268] For receiving the care bristles 227, the brush head body 240 on its front side 230 forms a bristle hole field with a plurality of bristle holes 226.

[1269] On its section which is directed towards the main body 222, the brush head body 240 forms a connection interface in the form of an open, in particular semi-open, groove-like or slot-like receiver 245 which is orientated in the longitudinal direction L of the main body 222 or toothbrush 221 and via which the brush head body 240 can be stuck or pushed onto the connection section 225 of the main body 22 and connected to this. The groove-like or slot-like receiver 245 in the present case is shaped out in a cylinder-shaped or semi-cylinder-shaped manner.

[1270] The semi-open, cylinder-shaped receiver 245 is open at the rear side and at its open end is provided with a receiving ring 246 which is part of the brush head body. The receiving ring 246 encloses an insert opening 247. The insert opening 247 is arranged at the face side, facing towards the connection section 225.

[1271] The open part of the brush head body 240 or of the cylinder-shaped receiver 245 is arranged on the rear side of the toothbrush 221 in the assembled state.

[1272] The cross-sectional geometry of the cylinder-shaped receiver 245 is round. In the lateral surface of the cylinder-shaped receiver 245, a saw-tooth-shaped latching geometry 248 is formed opposite to the rear-side opening.

[1273] A saw-tooth-shaped latching geometry 229 as a counter geometry to the mentioned latching geometry 248 in the receiver 245 is likewise formed in the connection section 225 of the main body 222.

[1274] The connection section 225 is designed in a manner tapering conically towards its free end.

[1275] The cross-sectional geometry of the cylinder-shaped receiver or receiving groove 245 is designed inversely to the cross-sectional geometry of the connection section 225 of the main body 222, so that the connection section 225 with the cylinder-shaped receiver 245 forms a positive-fit on joining together.

[1276] For creating the connection between the main body 222 and the brush head body 240, the brush head body 240 is stuck onto the connection section 225 of the main body 222 or pushed onto this. For this, the connection section 225 with the front face side 234 in front is stuck or pushed through the face-side insert opening 247 which is on the brush head body 240 and is formed by the receiving ring 246, into the cylinder-shaped receiver or receiving groove 245 of the brush head body 240.

[1277] The stick-on or push-on movement runs in the longitudinal direction L of the main body 222 in the direction of the grip part 223.

[1278] The stick-on connection is a non-releasable latching connection which is realised by sticking on. For this, the saw-tooth-shaped latching geometries of the receiver 245 and of the connection section 225 engage into one another.

[1279] However, the toothbrush 221 according to the FIGS. 10a to 10c is designed such that the brush head body 240 and the main body 222 can be separated amid the destruction of the connection. For this, a separation tab 240 which runs in the longitudinal direction L of the brush head body 2240 or of the toothbrush 221 is shaped out in the brush head body 240. The separating tab 249 is arranged on the front side 230 of the brush head body 240 and receives the saw-tooth-shaped latching geometry 248. The separating tab 249 runs from the end of the cylinder-shaped receiver 245 of the brush head body 240 in the direction of the receiving ring 246.

[1280] The separating tab 249 is delimited with respect to the remaining bush head body 240 via two weakening lines such as perforation lines, which are run next to one another and are distanced to one another.

[1281] The weakening lines are formed in the region of the receiver 245 as well as on the outer side of the brush head body 240.

[1282] The design of the weakening lines, on assembly permits a certain resilience of the latching geometry, so that the joining parts can be stuck together and can form a positive fit.

[1283] The receiving ring 246 for its part is interrupted at a separating location 250 and can be opened e.g. by hand. After or on opening the receiving ring 246, the separating tab 249 with the saw-tooth-shaped latching geometry together with the receiving ring 246 or a ring sector of the receiving ring 246 can be torn away along the weakening lines.

[1284] Subsequent to the tearing-away of the separating tab 249, the brush head body 240 can be separated or parted from the main body 222. In this manner, the different materials, such as wood and plastic can be separated for the waste recycling at the end of the service life of the toothbrush.

[1285] The term main body and grip part can be used analogously in the FIGS. 10 to 12.

[1286] A further embodiment of a toothbrush 321 comprising a front side 330 and a rear side 331 as well as with a main body 322 of wood and with differently injected-on elements of plastic is shown in FIGS. 13a to 13d.

[1287] The main body 322 comprises a grip part 323, via which the toothbrush 321 is held. A thumb grip body 350 of plastic which forms a thumb rest is formed on the grip part 323.

[1288] A connection section 325, via which a brush head body 340 of plastic is connected to the main body 322 is formed at the front end of the main body 322. The care bristles 327 which together with the brush head body 340 form the brush head 328 are arranged on this body.

[1289] The care bristles 327 can be injection moulded together with the brush head body 340. Care bristles 327 and the brush head body 340 in particular can be designed in a single-part manner.

[1290] The thumb grip body 350 and the brush head body 340 are injected onto the main body 322 by way of an injection moulding method. In particular, this is effected by way of the so-called insert-moulding method. For this, the toothbrush 321 or the main body 322 is inserted into an injection moulding tool and is peripherally injected.

[1291] The thumb grip body 350 is connected to the main body 322 in particular with a positive fit for example by way of geometries as are shown in FIGS. 13b and 13c.

[1292] Hence the thumb grip body 350 encompasses the main body 322 in cross section over the whole periphery at least in sections.

[1293] According to the embodiment variant according to FIG. 13b, a deepening/depression 326 is formed in the main body 322 and this is filled with the material of the thumb grip body 350 and thus provides the thumb grip body 350 with a retention from a pull-out force in the longitudinal direction L of the toothbrush which acts upon this (quasi an undercut). This means that the thumb grip body 350 which is injected onto the main body 322 can no longer be pulled away from the main body 322 on account of this narrowing in the cross section of the main body 322.

[1294] According to embodiment variants according to FIG. 13c, the main body 322 is provided with an opening 329 which is filled with material of the thumb grip body 350. Thanks to this positive fit through the main body 322, the thumb grip body 350 can no longer be released or pulled away from the main body 322.

[1295] The brush head body 340 can be fastened to the main body 322 in a manner comparable to the thumb grip body 350. The brush head body 340 in particular analogously to the methods by way of through-injection which are shown in FIG. 13c is connected through an opening 339 in the connection section 325 to the connection section 325 of the main body 322 by way of through-injection.

[1296] This method is schematically shown in FIG. 13d. The retention by way of through-injection is better than with the connecting by way of a narrowing in the cross section of the main body 322, as is shown in FIG. 13b by way of the thumb grip body 350. In particular, this is due to the fact that the brush head body 340 is subjected to a greater loading i.e. forces than the thumb grip body 350.

[1297] The FIGS. 14a to 14f show a further embodiment of a toothbrush 421 according to the invention with a main body 422 of wood. The main body 422 is yet represented separately in the FIGS. 14d to 14e.

[1298] The main body 422 in particular comprises a profiled basic shape as is already shown and described for example in the context of FIG. 2. The main body 422 comprises a grip part 423 as well as a connection section 425 which forms a part of the neck section 424 and is connected to the grip part 423.

[1299] In the connection section 425, the main body 422 forms a front face side 434 as well as in the grip part 423 a rear face side 435.

[1300] On the front side 430, the grip part 423 forms a thumb rest 432 in the form of a trough. The thumb rest 432 however is not necessary and can also be designed differently.

[1301] The toothbrush 421 according to the invention further comprises a brush head body 440 which is stuck onto the main body 422 via the connection section 425 and is connected to this. The brush head body 440 is an injection moulded part of plastic. The brush head body 440 is yet shown separately in FIG. 14f.

[1302] The brush head body 440 together with the care bristles 427 forms the brush head 428. The toothbrush 421 on the front side 430 of the brush head body 440 accordingly forms a bristle field of a plurality of care bristles 427 (only represented schematically).

[1303] For receiving the care bristles 427, the brush head body 440 on its front side 430 forms a bristle hole field as for example also the brush head body 40 according to FIGS. 3a to 3k comprises.

[1304] The brush head body 440 on its section which is directed towards the main body 422 forms a connection interface in the form of an open, in particular semi-open, groove-like or slot-like receiver 445 which is oriented in the longitudinal direction L of the main body 422 or toothbrush 445 and via which the brush head body 440 can be stuck or pushed onto the connection section 425 of the main body 422 and connected to this. The groove-like or slot-like receiver 445 can be shaped out e.g. in a cylinder-shaped or semi-cylinder-shaped manner.

[1305] The brush head body 440 on its rear side is provided with a separating tab 449 which is pivotably fastened to the remaining brush head body 440. The separating tab 445 is pivotable via the open, cylindrical receiver 445 and closes this in the assembled state.

[1306] Hence the separating tab 449 is pivoted in the direction of the insert opening 447 for fastening the brush head body 440 and laterally latches on the brush head body 440. Herewith, the brush head body 44 is fixedly fastened to the main body 442.

[1307] The open section of the brush head body 440 or of the receiver 445 is arranged on the rear side of the toothbrush 421 in the assembled state.

[1308] The cross-sectional geometry of the receiver 445 has a similar shape to that in FIG. 2. The separating tab 449 has a saw-tooth-shaped latching geometry 448 which in the closed or assembled state faces towards the connection section 425 of the main body or towards the receiver 445.

[1309] Latching geometry means that this is suitable for assuming a latching position with a corresponding counter-geometry.

[1310] A saw-tooth-shaped latching geometry 429 as a counter geometry to the mentioned latching geometry 448 of the brush head body 440 is likewise formed in the connection section 425 of the main body 422 and projects into the receiver 445.

[1311] The two saw-tooth-shaped latching geometries 429, 448 meshingly engage into one another and thus secure the connection section 425 from being pulled out of the receiver 445.

[1312] If the separating tab 449 is already in the latching position before the insertion of the connection section 425 into the receiver 445, then a latching of the two latching geometries 429, 448 takes place on inserting the connection section 425 into the receiver 445.

[1313] If the separating tab 449 is not brought into the latching position until after the insertion of the connection section 425 into the receiver 445, then the latching takes place on positioning the separating tab 449 into the assembled position via the connection section 425.

[1314] The connection section 425 is designed in a conically tapering manner towards its free end.

[1315] The cross-sectional geometry of the receiver or receiving groove 445 is inverted to the cross-sectional geometry of the connection section 425 of the main body 422, so that the connection section 425 forms a positive fit on joining together with the receiver 445.

[1316] For creating the connection between the main body 422 and the brush head body 44, the brush head body 440 is stuck onto the connection section 425 of the main body 422 or pushed onto this. For this, the connection section 425 is pushed or inserted with the front face side in front through the face-side insert opening 447 on the brush head body 440 into the cylinder-shaped receiver or receiving groove 445 of the brush head body 440.

[1317] The separating tab 449 is subsequently pivoted in the direction of the insert opening 447 and fixed or latched on the brush head body 440.

[1318] As already mentioned, the separating tab 449 can also be brought into the latching position before the insertion of the connection section 425 into the receiver 445 of the brush head body 440.

[1319] The stick-on or push-on movement runs in the longitudinal direction L of the main body 422 on the direction of the grip part 432.

[1320] The stick-on connection with a fixation or latching of the separating tab forms a non-releasable connection between the connection section 425 and the brush head body 440. For this, the saw-tooth-shaped latching geometries of the receiver 445 and of the connection section 425 in particular meshingly engage into one another.

[1321] The toothbrush 421 according to FIGS. 14a to 14c however is designed such that the brush head body 440 and the main body 422 can be separated amid the destruction of the connection. For this, a separating tab 449 which runs in the longitudinal direction L of the brush head body 440 or of the toothbrush 421 is shaped out in the brush head body 440. The separating tab 449 is arranged on the rear side 431 of the brush head body 440 and receives the saw-tooth-shaped latching geometry 448. The separating tab 449 runs from the end of the receiver 445 of the brush head body 440 in the direction of the insert opening 447.

[1322] The separating tab 449 is delimited from the remaining brush head body 440 or connected to this via a film hinge. By way of the separation, the connection between the separating tab and the brush head body 440 is destroyed and the brush head body 440 and the main body 422 can be separated or parted. In this manner, the different materials such as wood or plastic can be separated for the waste recycling at the end of the service life of the toothbrush.

[1323] Alternatively, the brush head body 440 can be injected with a similar geometry also directly onto the main body 422. A separating tab 449 is likewise formed, and this in an analogous manner permits the separation of the bodies. The separating tab 449 can be delimited with respect to the remaining brush head body 440 via weak locations, such as thin locations in the wall.

[1324] FIGS. 15a to 15i show a further embodiment of a toothbrush 521 according to the invention with a main body 522 of wood. The main body 522 in the FIGS. 15d to 15f is still represented separately, whilst in FIGS. 15g and 15h the brush head body is represented separately and in FIG. 15i the connection section is shown in a detailed manner in a longitudinal section.

[1325] In the present case, the main body 522 in particular has a profiled basic shape. The main body 522 comprises a grip part 523 as well as a connection section 525 which forms a part of the neck section 524 and is connected to the grip part 523.

[1326] The main body 522 in the connection section 525 forms a front face side 534 as well as in the grip part 523 a rear face side 535.

[1327] The toothbrush 521 according to the invention further comprises a brush head body 540 which is stuck onto the main body 522 via the connection section 525 and is connected to this main body. The brush head body 540 is an injection moulded part of plastic. The brush head body 540 is yet represented separately in the FIGS. 15g and 15h.

[1328] The brush head body 540 together with the care bristles 527 (only represented schematically) forms the brush head 528. The toothbrush 521 on the front side 530 of the brush head body 540 accordingly forms a bristle field of a plurality of care bristles 527.

[1329] For receiving the care bristles 527, the brush head body 540 on its front side 530 forms a bristle hole field as for example also the brush head body 40 according to FIGS. 3a to 3k comprises.

[1330] The brush head body 540 on its section which is directed to the main body 522 forms a connection interface in the form of a closed, elongate receiver 545 which is orientated in the longitudinal direction L of the main body 522 or of the toothbrush 521 and via which the brush head body 540 can be stuck or pushed onto the connection section 525 of the main body 522 and connected to this. The receiver 545 can be shaped out in e.g. a cylinder-shaped manner, such as rectangular cylinder shaped manner.

[1331] The receiver 545 in a receiver section which faces the face-side insert opening 547 comprises lateral latching recesses 548 which form a latching geometry and which interact with laterally projecting latching elements 529 which form a latching geometry on the connection section 525.

[1332] By way of latching the projecting latching elements 529 in the latching recesses 548, the brush head body 540 on sticking onto the connection section 445 is releasably fastened on the main body 522. This permits the exchange of the brush head body 540.

[1333] However, one can also envisage the brush head body 540 being connected to the connection section 525 in a non-releasable manner, which means not able to be separated without destruction.

[1334] The connection section 525 is designed in a conically tapering manner towards its free end.

[1335] The cross-sectional geometry of the receiver 545 in particular is inverted to the cross-sectional geometry of the connection section 525 of the main body 522, so that the connection section 525 with the receiver 545 on joining together forms a positive fit.

[1336] For creating the connection between the main body 522 and the brush head body 540, the brush head body 540 is stuck onto the connection section 525 of the main body 522 or is pushed onto this. For this, the connection section 525 with the front face side in front is pushed through the face side insert opening 547 on the brush head body 540 into the receiver 545 of the brush head body 540. Herein, the latching geometries 529 and 549 latch into one another or engage into one another.

[1337] The stick-on or push-on movement runs in the longitudinal direction L of the main body 522, in particular in the direction of the grip part 523.

[1338] However, the toothbrush 521 according to FIGS. 15a to 15c in particular is designed such that the brush head body 540 and the main body 522 of the connection can be separated again (without destruction). In this manner, an exchange system which permits the exchange of the brush head body can be formed.

[1339] For this, the brush head body 540 is pulled away from the main body 522 in the longitudinal direction and the latching geometries detach on exceeding a critical pull-out force. The latching geometries are designed accordingly, so that this feature can be realised. Thus in particular the brush head body 540 has a certain compliance or elasticity in the region of the latching geometry 548 and this permits a moving-back of the latching geometry 548 transversely to the pull-off direction on applying a pull-out force, without this becoming damaged by way of this.

[1340] By way of the exchange system, brush head bodies and main bodies of the most varied of materials can be combined with one another and on the other hand in this manner the different materials such as wood and plastic can be separated for waste recycling the end of the service life of the toothbrush.

[1341] FIGS. 16a to 16c show an embodiment example of a toothbrush 621 with a main body 622 of wood. The FIGS. 16e and 16f show the associated main body 622 after a first profiling step.

[1342] The main body 622 comprises a front side 630 as well as a rear side 631 which lies opposite this. The two sides are designed in a profiled manner (see FIGS. 16a and 16b).

[1343] The main body 622 furthermore, considered with a view onto the front side 630, comprises left longitudinal narrow side 632 as well as a right longitudinal narrow side 633 which connect and as well as laterally delimit the front side 620 and the rear side 631 via a chamfered edge 636.

[1344] The main body 622 comprises a grip part 623 as well as a head part 625 which is connected to the grip part 263 via a neck section 624. The neck section 624 is characterised by a cross-sectional reduction, i.e. narrowing, between the grip part 623 and the head part 625.

[1345] In the head part 625, the main body 622 forms a front face side 634 as well as in the grip part 623 a rear face side. The front face side 634 in the head part 625 is rounded between the two longitudinal narrow sides 632, 633.

[1346] The head part 625 on the front side forms a bristle field 629 of a plurality of care bristles 627. For receiving the care bristles 627, the head part 625 on its front side forms a plurality of bristle holes as for example the head part 5 and 85 according to FIGS. 1a to 1e and FIGS. 8a to and 8b respectively also comprises.

[1347] The care bristles 627 are anchored into the bristle holes 626 of the head part by way of a conventional anchor punching method.

[1348] The head part 625 together with the care bristles 627 forms the brush head 628 of the toothbrush 62.

[1349] FIG. 16e shows a lateral view of the main body 622′ after a first profiling step. Herein, the front side and the rear side 631 are already profiled. The later longitudinal narrow sides 632 and 633 have not yet obtained their profiling, which is manifested in the fact that these are still shaped in a straight or plane manner. This is evident in the plan view according to FIG. 16f.

[1350] Basically, one can also envisage the brush head bodies according to FIGS. 3, 10, 11, 14 and 15 being able to be injected onto the main body or its connection section in an injection moulding method, instead of being stuck onto this.