HAIRCUTTER AND HAIRCUTTING BLADE

Abstract

The haircutter according to the invention serves for trimming and styling hair and comprises a grip and a blade head connected with the grip. A working section is disposed at one longitudinal face of the blade head and recessed from an alignment line of the longitudinal face. A haircutting blade having at least one cutting edge is accommodated in the blade head and disposed so as to expose at least part of its cutting edge in the working section and to not protrude beyond the alignment line. The blade head comprises a guiding device having at least one placing surface for the hair to be trimmed so that the hair to be trimmed lies at a defined angle to the cutting edge as the placing surface is placed against the hair.

Claims

1-33. (canceled)

34. Haircutter for trimming and styling hair, comprising: at least one grip and at least one blade head with a haircutting blade defining a plane and having at least one cutting edge in a fixed position in the blade head, the blade head being connected with the grip, at least one longitudinal face of the blade head defining an alignment line, the longitudinal face having at least one working section disposed thereat which is recessed from the alignment line of the longitudinal face and wherein the blade head accommodating the haircutting blade so that the cutting edge of the haircutting blade is at least partially exposed in the working section and does not protrude beyond the alignment line, the blade head comprises at least one guiding device having at least one placing surface for the hair to be trimmed that comprises at least one first placing section and following behind and adjacent to the first placing section at least one second placing section transverse to a longitudinal axis of the blade head and wherein the first placing section is disposed closer to the exposed cutting edge of the haircutting blade than is the second placing section, the first placing section being disposed adjacent to and surrounding at least a portion of the working section, the first and the second placing section each having an acute angle with respect to the plane of the haircutting blade, the first placing section has a larger acute angle with respect to the plane of the haircutting blade than does the second placing section and the placing surface is at least partially disposed at an angle to the plane of the haircutting blade when the haircutting blade is oriented in the blade head so that the hair to be trimmed lies at a defined angle to the cutting edge as the placing surface is placed against the hair.

35. The haircutter according to claim 34 wherein the placing surface is at least partially disposed at an angle of substantially twenty-one degrees to the plane of the haircutting blade when the haircutting blade is accommodated in the blade head.

36. The haircutter according to claim 34 wherein the placing surface and the blade head are configured as one piece and wherein the placing surface is provided by a wedge shape of the blade head.

37. The haircutter according to claim 34 wherein the placing surface is provided by a curved shape of the blade head.

38. The haircutter according to claim 34 wherein the blade head comprises two side faces, one of the two side faces comprising the at least one guiding device having at the least one placing surface and the other of the two side faces comprising another guiding device having at least one placing surface, and wherein the at least one placing surface of the at least one guiding device and the at least one placing surface of the other guiding device are assigned to the at least one shared working section.

39. The haircutter according to claim 34 wherein the blade head has a second longitudinal face opposite the at least one longitudinal face, the second longitudinal face defining an alignment line, the second longitudinal face having at least one working section disposed thereat which is recessed from the alignment line of the second longitudinal face, the blade head further comprises two side faces opposed to each other and disposed between the at least one longitudinal face and the second longitudinal face, one of the side faces comprising the at least one guiding device and the other of the side faces comprising another guiding device, wherein the at least one guiding device and the other guiding device each comprise at least two placing surfaces, and wherein one placing surface of the first guiding device and one placing surface of the other guiding device is assigned to the at least one working section disposed thereat the at least one longitudinal face and a second placing surface of the at least one guiding device and a second placing surface of the other guiding device are assigned to the at least one working section disposed thereat the second longitudinal face.

40. The haircutter according to claim 34, comprising at least one adjusting unit in the blade head adapted to at least partially engage at least one recess in a haircutting blade when a haircutting blade having at least one recess configured as a elongated hole extending in the longitudinal direction of the haircutting blade and having an outer contour is accommodated in the blade head so as to prohibit movement of the haircutting blade at least in the longitudinal direction and/or at least transverse to the longitudinal direction.

41. The haircutter according to claim 40 wherein the adjusting unit is adapted to at least partially engage the at least one recess in the haircutting blade when the at least one recess in the haircutting blade is rectangular in shape and the haircutting blade is accommodated in the blade head.

42. The haircutter according to claim 40 wherein the adjusting device comprises at least one take-up cavity disposed in the blade head and adapted to track at least portions of an outer contour of the haircutting blade when the haircutting blade is accommodated in the blade head.

43. The haircutter according to claim 41 wherein the adjusting unit is adapted to at least partially engage the at least the one elongated hole in the haircutting blade when the haircutting blade is accommodated in the blade head and wherein the elongated hole in the haircutting blade has a length of more than two thirds of the length of the haircutting blade.

44. The haircutter according to claim 41 wherein the adjusting unit is adapted to at least partially engage the at least one elongated hole in the haircutting blade when the haircutting blade is accommodated in the blade head and wherein the elongated hole in the haircutting blade has a width of less than one third of the width of the haircutting blade.

45. The haircutter according to claim 40 wherein the adjusting unit comprises at least three elevations wherein at least two elevations are adapted to be disposed at the ends of the at least one elongated hole in the haircutting blade when the haircutting blade is accommodated in the blade head and at least one elevation is in-between the at least two elevations.

46. The haircutter according to claim 40 wherein the adjusting unit is disposed at such an angle to a longitudinal axis of the blade head wherein the cutting edge of the haircutting blade is disposed at an angle between one-half of a degree and six degrees to the longitudinal axis of the blade head.

47. The haircutter according to claim 34 wherein a line segment extending orthogonally to an alignment line of the longitudinal face shows an angle of twelve degrees to twenty-three degrees to the plane of the haircutting blade between a valley point in which the working section is recessed furthest and where the placing surface lies closest to the haircutting blade, and a peak point in which the placing surface lies highest above the haircutting blade.

48. The haircutter according to claim 34 wherein a line segment extending orthogonally to an alignment line of the longitudinal face shows an angle of sixteen degrees to eighteen degrees to the plane of the haircutting blade between a valley point in which the working section is recessed furthest and where the placing surface lies closest to the haircutting blade, and a peak point in which the placing surface lies highest above the haircutting blade.

49. The haircutter according to claim 47 wherein the placing surface at least partially shows an angle of twelve degrees to thirty degrees to the plane of the haircutting blade between the valley point and the peak point.

50. The haircutter according to claim 47 wherein the placing surface at least partially shows an angle of twenty degrees to twenty-two degrees to the plane of the haircutting blade between the valley point and the peak point.

51. The haircutter according to claim 34 wherein the first placing section has an angle of nineteen degrees to twenty-three degrees.

52. The haircutter according to claim 34 wherein the second placing section shows an angle of twelve degrees to fifteen degrees.

53. The haircutter according to claim 34 wherein the first placing section extends over less than half the width of the placing surface.

54. The haircutter according to claim 34 wherein the second placing section extends over more than half the width of the placing surface.

55. The haircutter according to claim 34 wherein the first placing section has a concave dome-like shape.

56. The haircutter according to claim 34 wherein the blade head comprises on at least on one side of the blade head at least one third placing section next to and extending along a longitudinal direction parallel to the longitudinal axis of the blade head away from the working section.

57. The haircutter according to claim 34 wherein the blade head comprises at least one take-up surface adapted to bear against more than one fourth of at least one side face of the haircutting blade.

58. The haircutter according to claim 34 wherein the blade head comprises at least one take-up surface adapted to bear against a side face of the haircutting blade in a multitude of contact points.

59. The haircutter according to claim 34 wherein the blade head has at least one depression which is recessed relative to at least one of the side faces of the haircutting blade so as to expose the haircutting blade.

60. The haircutter according to claim 59 wherein the take-up surface is disposed adjacent to the working section and wherein the depression is disposed spaced-apart from the working section.

61. The haircutter according to claim 34 wherein a longitudinal axis of the grip is adapted to extend on one plane with the haircutting blade.

62. The haircutter according to claim 34 wherein the grip and the blade head are adapted to have at least one shared balancing point located in the grip.

63. The haircutter according to claim 34 wherein the grip is adapted to accommodate at least one counterweight.

64. The haircutter according to claim 34 wherein the blade head is adapted to accommodate at least one counterweight.

65. The haircutter according to claim 34 wherein the first placing section is at least partially disposed at an angle of between sixteen degrees and twenty-six degrees to the plane of the haircutting blade when the haircutting blade is accommodated in the blade head.

66. The haircutter according to claim 56 wherein the blade head comprises, on the at least one side of the blade head, an elevation in the blade head extending substantially in a diagonal, and the at least one third placing section on the at least one side of the blade head extends between the elevation and a section of the longitudinal face of the blade head.

67. The haircutter according to claim 66 wherein the at least one third placing section extends between the elevation and a section of the longitudinal face of the blade head that shows increasing thickness.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0083] The figures show:

[0084] FIG. 1 is a schematic illustration of a haircutter according to the invention in a perspective view;

[0085] FIG. 2 is a schematic illustration of a blade head member of the haircutter in a view of a side face;

[0086] FIG. 3 is a schematic illustration of the blade head member in a view of the other side;

[0087] FIG. 4 is a schematic illustration of the blade head member in a sectional view on the cutting line A-A in FIG. 3;

[0088] FIG. 5 is a schematic illustration of the blade head member in a front view;

[0089] FIG. 6 is a schematic illustration of the blade head member in a sectional view on the cutting line B-B in FIG. 3;

[0090] FIG. 7 is a schematic illustration of the blade head member in a rear view;

[0091] FIG. 8 is a schematic illustration of another blade head member of the haircutter in a view of a side face;

[0092] FIG. 9 is a schematic illustration of another blade head member in a view of the other side;

[0093] FIG. 10 is a schematic illustration of the blade head member in a sectional view on the cutting line A-A in FIG. 9;

[0094] FIG. 11 is a schematic illustration of the blade head member in a rear view;

[0095] FIG. 12 is a schematic illustration of the blade head member in a sectional view on the cutting line B-B in FIG. 9;

[0096] FIG. 13 is a simplistic illustration of a cross-section of a blade head; and

[0097] FIG. 14 is a simplistic illustration of a haircutting blade in a side view.

DETAILED DESCRIPTION

[0098] FIG. 1 shows a haircutter 1 according to the invention having a blade head 2 and accommodated therein, a haircutting blade 4. A grip 10 is attached to the blade head 2 so that the longitudinal axes of the grip 10 and the blade head 2 are oriented in the same direction.

[0099] This blade head 2 comprises two opposite working sections 3 offset to one another that are recessed relative to an alignment line 120 of a longitudinal face 12. This haircutting blade 4 comprises two opposite cutting edges 14 each of which is accessible in one working section 3 only. The working sections 3 are configured as recesses.

[0100] The blade head 2 comprises two blade head members 121, 122 between which the haircutting blade 4 is accommodated. The first blade head member 121 is connected with the grip 10. The second blade head member 122 is attached to the first blade head member 121 for which it serves as a cover. The two blade head members 121, 122 rest flush against the longitudinal faces 12.

[0101] Each of the blade head members 121, 122 provides a side face 22, 32 of the blade head 2. Each of the side faces 22, 32 shows a substantially diagonal elevation 52 that separates the two opposite working sections 3 from one another.

[0102] The blade head 2 comprises a guiding device 5 that guides the hair during cutting at a defined angle along the blade head 2. The guiding device 5 provides two placing surfaces 15 for each of the working sections 3. Thus, each of the working sections 3 is provided with one placing surface 15 on each of the side faces 22, 32. The placing surfaces 15 on the side face 22 are not visible in this illustration.

[0103] The two placing surfaces 15 disposed on one shared side face 22, 32 are separated from one another by the elevation 52.

[0104] The guiding device 5 is configured integrally with the blade head 2. Thus result the placing surfaces 15 from a wedge-shaped design of the blade head 2 or its blade head members 121, 122.

[0105] The grip 10 and the blade head 2 show one shared balancing point 20 disposed in the grip 10. The grip 10 is provided with a hollow space that can accommodate a counterweight 9. This is for example a lead weight 9 having such a weight as to obtain a grip 10 having the same weight as does the blade head 2. Then the haircutter 1 is in equilibrium or in a level position as it rests on the balancing point 20.

[0106] FIG. 2 illustrates the first blade head member 121 in a view of the side face 22. The longitudinal axis 42 of the blade head 2 is inserted as a dash-dotted line. The side faces 123 extend transverse to the longitudinal axis 42. The grip accommodation 11 is disposed on one of the side faces 123.

[0107] The placing surfaces 15 each comprise three placing sections 151, 152, 153. The first placing section 151 is disposed in the region of the working section 3. The second placing section 152 is located behind, transverse to the longitudinal axis 42. The third placing section 153 is disposed in the direction of the longitudinal axis 42 laterally adjacent to the two placing sections 151, 152. The thickness of the blade head member 121 increases along the longitudinal face 12 in the region of the third placing section 153.

[0108] The first placing section 151 is concave, dome-like, so as to provide a dip in the region of the working section 3. The first placing section 151 shows a larger angle to the plane of the haircutting blade 4, which is not shown, than does the second placing section 152. The first placing section 151 extends over less than half the width of the entire placing surface 15.

[0109] FIG. 3 shows the side of the blade head member 121 opposite the side face 22. On this side the adjusting device 6 for aligning the haircutting blade 4 and the coupling device 7 for attaching the second blade head member 122 and the take-up surfaces 62 for the haircutting blade 4 can be particularly clearly recognized.

[0110] A take-up surface 62 adjacent to each of the working sections 3 is provided against which the haircutting blade 4 rests when operational, making contact. One depression 72 each for reducing weight is worked into the blade head 2 in the direction of the longitudinal axis 42 next to the take-up surface 62.

[0111] The adjusting device 6 comprises an adjusting unit 26 at the blade head member 121 comprising three elevations 66 on this blade head member 121. The adjusting device 6 moreover comprises in the haircutting blade 4 a recess 16 described in more detail with reference to the FIG. 14. The elevations 66 engage the recess 16 so as to prohibit movement of the haircutting blade in its longitudinal direction and also transverse to its longitudinal direction.

[0112] The adjusting device 6 moreover comprises a take-up cavity 86 recessed in the blade head member 121 matched to the outer contour of the haircutting blade 4. The depth of the take-up cavity 86 corresponds at least approximately to the thickness of the haircutting blade 4.

[0113] The adjusting unit 26 is disposed at an angle or inclination to the longitudinal axis 42 of the blade head 2 with its three elevations 66. The take-up cavity 86 also shows an angular arrangement. Thus the inserted haircutting blade 4 is aligned by its cutting edges 14 at a defined angle to the longitudinal axis 42 respectively to the longitudinal faces 12 of the blade head 2. The angle of the inclined position is for example 3°.

[0114] The coupling device 7 comprises a connecting lug 17 which can be wedged with a connecting lug 27 shown in the FIG. 9, of the other blade head member 122. To this end the connecting lugs 17, 27 show a wedge-shaped or conical design.

[0115] For clamping the haircutting blade 4 the cover 122 is pushed onto the first blade head member 121 in the longitudinal direction so that one of the connecting lugs 17 grasps beneath the other of the connecting lugs 27 and vice versa. The two blade head members 121, 122 are brought toward one another so as to firmly clamp the haircutting blade 4. Vibrations of the blade 4 during cutting can thus be effectively prevented.

[0116] The connecting lug 17 serves at the same time as the elevation 66 for the adjusting device 6. To this end the connecting lug 17 preferably has a width closely fitting the width of the recess 16 of the haircutting blade 4.

[0117] FIG. 4 shows the first blade head member 121 in a sectional illustration on the line A-A of the FIG. 3. A cutout 37 of the coupling device 7 serves to accommodate a projection 47 of the second blade head member 122 shown in the FIG. 8. The projection 47 is inserted into the cutout 37 as the cover 122 is attached while the connecting lugs 17, 27 are wedged to one another.

[0118] The cutout 37 may be provided with a spring member, not shown in detail, prohibiting exit of the projection 47 from the cutout 37. To this end the spring member preferably engages an undercut provided in the projection 47.

[0119] FIG. 5 shows a front view of the blade head member 121 and a view of the side face 123.

[0120] FIG. 6 shows the blade head member 121 in a sectional illustration on the line B-B in FIG. 3.

[0121] FIG. 7 shows the blade head member 121 in a rear view revealing the grip accommodation 11. This illustration shows particularly clearly that the longitudinal axis of the grip 10 extends in one plane with the haircutting blade 4 accommodated in the blade head 2.

[0122] FIG. 8 shows the second blade head member 122 or the cover for the first blade head member 121 in a top view of the side face 32. The second blade head member 122 is configured in analogy to the first blade head member 121 and likewise comprises two opposite working sections 3 offset to one another so that the second blade head member 122 illustrates a kind of second side half of the first blade head member 121. The working sections 3 and the placing surfaces 15 are also configured in analogy to the first blade head member 121.

[0123] On the side face 123 the blade head member 122 shows a projection 47 that, as the two blade head members 121, 122 are brought together, is inserted into the cutout 37.

[0124] FIG. 9 shows the side of the blade head member 122 facing the haircutting blade 4. This blade head member 122 is again provided with take-up surfaces 62 for the haircutting blade 4 in the region of the working sections 3. In the longitudinal direction adjacent thereto and on the opposite longitudinal face 12, pertaining depressions 72 are provided in which the haircutting blade 4 is exposed. The blade head member 122 serving as a cover is not provided with a grip accommodation 11.

[0125] The connecting lug 27 of the coupling device 7 is configured in analogy to the connecting lug 17 of the other of the blade head members 121 and likewise serves as an elevation 66 for the adjusting device 6. The adjusting unit 6 of the second blade head member 122 comprises two adjusting recesses 76 in which the two outer elevations 66 of the first blade head member 121 engage when the two members 121, 122 are coupled to one another.

[0126] FIG. 10 shows the blade head member 122 in a sectional illustration on the line A-A of FIG. 9. The connecting lug 27 corresponding to the connecting lug 17 of the first blade head member 121 and also the adjusting recesses 76 can be seen particularly clearly. One can particularly clearly also see the projection 47 that is configured with an undercut.

[0127] FIG. 11 shows the second blade head member 122 in a rear view with a view of the side face 123 with the projection 47.

[0128] FIG. 12 shows the second blade head member 122 in a sectional illustration on the line B-B of FIG. 9.

[0129] FIG. 13 shows a simplistic illustration of a blade head 2 of the inventive haircutter 1 and a haircutting blade 4 accommodated therein. The cross-section of the blade head 2 is shown in the region of the maximum recess in the working section 3.

[0130] The two side faces 22, 32 of the blade head 2 are each configured with a first placing section 151 and a second placing section 152. Each of the side faces 22, 32 is provided by a blade head member 121, 122. The first placing section 151 is narrower in configuration than the second placing section 152.

[0131] The first placing section 151 extends at a larger angle 301 to the plane of the haircutting blade 4 than does the second placing section 152 that is disposed at an angle 302 to the plane of the haircutting blade 4. The first placing section 151 starts at a valley point 201 where the placing surface 15 or the first placing section 151 lies deepest above the haircutting blade 4. Also, the working section 3 is recessed deepest in the valley point 201 shown. The first placing section 151 then makes a transition to the second placing section 152. The second placing section 152 ends in a peak point 202 where the placing surface 15 or the 2nd placing section 152 is highest above the haircutting blade 4.

[0132] The first placing section 151 shows for example an angle 301 of 21°. The second placing section 152 shows for example an angle 302 of 15°.

[0133] In the configuration of the haircutter 1 shown the side faces 22, 32 are configured such that the pertaining valley point 201 has a particular relationship to the pertaining peak point 202. A line segment 200 extending at right angles to the longitudinal face 12 respectively to the alignment line 120 of the blade head 2 between the valley point 201 and the peak point 202 is disposed at a defined angle 303. The angle is for example 17°.

[0134] The three angles 301, 302, 303 result in a placing surface 15 allowing a particularly favorable cutting angle for the hair guided alongside and also allows a compact design of the blade head 2.

[0135] FIG. 14 shows a top view of the haircutting blade 4 according to the invention. The haircutting blade 4 is provided with two opposite cutting edges 14. This haircutting blade 4 is rectangular with rounded corners.

[0136] In the side face 44 of the haircutting blade 4 a recess 16 is formed that is configured as a rectangular, elongated hole 36. The elongated hole 36 shows rectangular or non-rounded corners. The length 46 of the elongated hole 36 corresponds to the distance of the two outer elevations 66 of the adjusting device 6 of the blade head 2. The width 56 of the recess 36 corresponds to the width of the adjusting unit 26 respectively the elevations 66 of the blade head 2.

[0137] The haircutting blade 4 shows a width 24 showing a ratio of 1:2.29 to the length 34. The width 24 is for example 19 mm. The length 34 is for example 43.5 mm. The thickness of the haircutting blade 4 is for example 0.1 mm. The width 24 of the recess (16) is 5 mm and the length (34) is 37.2 mm.

[0138] These dimensions of the haircutting blade 4 are particularly suitable for the haircutter 1 described above since they result in particularly advantageous angles for the placing surfaces 15 without making the blade head 2 bulky.

TABLE-US-00001 List of reference numerals: 1 haircutter 2 blade head 3 working section 4 haircutting blade 5 guiding device 6 adjusting device 7 coupling device 9 counterweight 10 grip 11 grip accommodation 12 longitudinal face 14 cutting edge 15 placing surface 16 recess 17 connecting lug 20 balancing point 22 side face 24 width 26 adjusting unit 27 connecting lug 32 side face 34 length 36 elongated hole 37 cutout 42 longitudinal axis 44 side face 46 length 47 projection 52 elevation 56 width 62 take-up surface 66 elevation 72 depression 76 adjusting recess 86 take-up cavity 120 alignment line 121 blade head member 122 blade head member 123 side face 151 placing section 152 placing section 153 placing section 200 line segment 201 valley point 202 peak point 301 angle 302 angle 303 angle