WO2024100054A1 - Appareil de coupe de cheveux et unité de coupe pour un appareil de coupe de cheveux - Google Patents

Appareil de coupe de cheveux et unité de coupe pour un appareil de coupe de cheveux Download PDF

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Publication number
WO2024100054A1
WO2024100054A1 PCT/EP2023/081021 EP2023081021W WO2024100054A1 WO 2024100054 A1 WO2024100054 A1 WO 2024100054A1 EP 2023081021 W EP2023081021 W EP 2023081021W WO 2024100054 A1 WO2024100054 A1 WO 2024100054A1
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WO
WIPO (PCT)
Prior art keywords
cutting
length adjustment
locking
hair
longitudinal offset
Prior art date
Application number
PCT/EP2023/081021
Other languages
German (de)
English (en)
Inventor
Dominik Weiß
Original Assignee
Wahl Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wahl Gmbh filed Critical Wahl Gmbh
Publication of WO2024100054A1 publication Critical patent/WO2024100054A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/20—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers with provision for shearing hair of preselected or variable length
    • B26B19/205—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers with provision for shearing hair of preselected or variable length by adjustment of the cutting members

Definitions

  • the invention relates to a hair cutting device and a cutting set for a hair cutting device.
  • Hair cutting devices are known from the prior art and include, among other things, a blade arrangement which is provided at a front end of the hair cutting device and is suitable for cutting hair.
  • the blade arrangement generally has two cutting elements, the first of which is firmly connected to the rest of the hair cutting device and the second of which is arranged so that it can move relative to the first.
  • Cutting elements with comb-like cutting edges are often used, with the first cutting element being designed as a so-called shearing comb and coming into contact with the skin of the person or animal to be treated or the user.
  • the second cutting element is then designed as a so-called shearing blade.
  • Each cutting element has a row of teeth spaced apart from one another, with the teeth generally being arranged at equal distances from one another.
  • Such a blade arrangement can be designed so that different cutting lengths can be set with it.
  • the cutting length of such an adjustable blade arrangement is adjusted by longitudinally offsetting the two cutting elements relative to one another, with the movable cutting element generally being longitudinally offset.
  • the object of the present invention is therefore to overcome the problems known from the prior art, i.e. to provide a cost-effective, flexible and easily adjustable solution.
  • a hair cutting device comprises a blade arrangement with a first cutting element and a second, movable cutting element, a drive device that drives the blade arrangement, and a cutting length adjustment device that interacts with the second cutting element such that a longitudinal offset can be set between the first cutting element and the second cutting element, wherein the hair cutting device further comprises a selection device with which the cutting length adjustment device can be adjusted between at least a first length adjustment mode and at least a second length adjustment mode, wherein in the first length adjustment mode the longitudinal offset can be adjusted stepwise or continuously, i.e. continuously, and in the second length adjustment mode the longitudinal offset can be adjusted stepwise.
  • a cutting set according to the invention for a hair cutting device has a blade arrangement with a first cutting element and a second, movable cutting element and a cutting length adjustment device which cooperates with the second cutting element in such a way that a longitudinal offset can be set between the first cutting element and the second cutting element, wherein the cutting set further has a selection device with which the cutting length adjustment device can be adjusted between at least one first length adjustment mode and at least one second length adjustment mode, wherein in the first length adjustment mode the longitudinal offset can be adjusted stepwise or continuously, i.e. continuously, and in the second length adjustment mode the longitudinal offset can be adjusted stepwise.
  • a selection device has the advantage that at least two different adjustment modes can be provided with a hair cutting device (e.g.
  • a cutting set with this selection device can also be retrofitted to a hair clipper.
  • the cutting elements are preferably designed like a comb, i.e. they have corresponding teeth, the first cutting element being designed in particular as a fixed shearing comb that comes into contact with the skin of the person or animal to be treated or the user.
  • the second cutting element can also be designed as a movable shearing blade.
  • the cutting elements are adjusted between a maximum longitudinal offset (maximum cutting length) and a minimum longitudinal offset (minimum cutting length), which, for example in the case of comb-like cutting elements, leads to a minimum or maximum overlap of the cutting elements.
  • the blade arrangement also has a tensioning element (e.g. a coupling spring) for pre-tensioning the cutting elements against one another, and a carrier device that serves as a housing for the blade arrangement.
  • the carrier device is preferably firmly connected to the first cutting element (eg with screws), so that the clamping device can then be supported on the carrier device.
  • the blade arrangement can also preferably comprise a guide carriage, which can then displace the movable cutting element.
  • the selection device can also have a selector switch, in particular designed as a slide or toggle switch.
  • a selector switch in particular a slide switch, is particularly space-saving and can be designed inconspicuously.
  • the selection device preferably also has a locking device, the locking device having a number of locking positions and the locking device being locked or unlocked in the first length setting mode and locked in the second length setting mode.
  • the locking device is preferably designed like a gear or rack on the cutting length setting device or the guide shaft. This locking device is then preferably provided complementarily on the selection switch.
  • These teeth or locking beads preferably have a triangular or trapezoidal cross-section, in particular with rounded corners or edges.
  • the teeth on the cutting length setting device or the guide shaft and the teeth of the selection switch can slide over one another by applying force, so that a stepped adjustment of the longitudinal offset is possible.
  • the selection device can be designed such that in the first length adjustment mode the longitudinal offset can be adjusted step by step and in the second length adjustment mode the Longitudinal offset is continuously adjustable.
  • the locking device is preferably disengaged in the first length adjustment mode.
  • the cutting length adjustment device further comprises, in particular, an adjustment lever which is connected to the second cutting element and with which the second cutting element can be displaced in the longitudinal direction relative to the first cutting element.
  • the adjustment lever is preferably reversibly connected to the cutting length adjustment device, so that it can be detached from the cutting length adjustment device.
  • the adjustment lever is connected to the cutting length adjustment device in particular magnetically. This means that the adjustment lever can be easily removed from the hair cutting device and reattached, so that the lever no longer interferes with use and can be quickly reattached if the cutting length needs to be adjusted.
  • the adjustment lever can be connected to the cutting length adjustment device at two different positions, in particular at the two opposite ends of the cutting length adjustment device.
  • a hair cutting device can thus be used by both right-handed and left-handed people, in that the adjustment lever can be removed on one side and attached to the other side.
  • the adjustment lever is designed in particular symmetrically along a central plane. It can also have a plug-in device on each of its two sides with which the adjustment lever can be plugged onto the cutting length adjustment device. This means that the lever does not have to be turned when changing sides of the cutting length adjustment device and other possibly more ergonomic designs of the adjustment lever that are not symmetrical can also be used.
  • the adjustment lever is movable in particular in a range from 0° to 120°, preferably in a range from 0° to 90° and particularly preferably in a range from 0° to 70°, in particular up to 62°.
  • the cutting length adjustment device can be designed such that when the adjustment lever is moved in the direction of a cutting area, the longitudinal offset is reduced and when the adjustment lever is moved in the opposite direction, the longitudinal offset is increased.
  • the cutting length adjustment device is designed in particular as a guide shaft that can be rotated about an axis. Furthermore, the cutting length adjustment device preferably has at least one or two receptacles which extend in particular radially to the axis. A plug-in cylinder of the guide carriage then preferably engages in each of these receptacles, with the plug-in cylinders being mounted so that they can move radially in the receptacle(s). In this way, the rotary movement of the cutting length adjustment device can be converted into a translatory movement of the guide carriage.
  • the blade arrangement preferably further comprises a guide carriage which cooperates with the guide shaft of the cutting length adjustment device in such a way that a longitudinal movement of the guide carriage is generated by rotating the guide shaft.
  • the cutting length adjustment device can also have a longitudinal offset indicator. This can be formed by markings (e.g. lines) or numbers and is arranged in particular in the area of the lever.
  • the longitudinal offset indicator is preferably designed as a scale, whereby the lever position at a certain point on the scale allows a conclusion to be drawn about a certain longitudinal offset.
  • the hair cutting device preferably has a coupling spring, wherein the cutting length adjustment device is coupled to the second cutting element by means of the coupling spring.
  • the coupling spring is also designed to transfer the setting of the longitudinal offset from the cutting length adjustment device to or to the second cutting element.
  • the coupling spring is formed by the tensioning element, so that the coupling spring is designed to press the second cutting element against the first cutting element.
  • the longitudinal offset is the distance between two reference elements along a longitudinal axis of the hair cutting device or the cutting set.
  • the longitudinal axis corresponds to an axis that extends from the operator to a position where hair is cut when the hair cutting device or the cutting set is in operation.
  • a transverse axis runs perpendicular to the longitudinal axis and parallel to a cutting edge.
  • the cutting edge results from the arrangement of the first and second cutting elements and corresponds to the edge or line at which the cutting effect caused by the relative movement of the first and second cutting elements occurs.
  • the hair cutting device or the cutting set preferably has a selection device which comprises a locking plate which is pre-tensioned in the direction of the locking device and is movable with the selection slide.
  • the locking plate by means of a ramp it is brought into and out of engagement with the locking device.
  • the locking plate preferably has a spring clip. The end of the locking plate is preferably latched into a depression in the freewheel position.
  • Fig. 1 a shows a hair cutting device in an isometric exploded view.
  • Fig. 1 b shows the hair cutting device shown in Fig. 1 a in a plan view.
  • Fig. 2a shows a cutting set in an isometric view.
  • Fig. 2b shows the cutting set shown in Fig. 2a in a top view.
  • Fig. 2c shows the cutting set shown in Figs. 2a and 2b without carrier device in an isometric view and in a first length adjustment mode.
  • Fig. 2d shows the cutting set shown in Fig. 2c in a second length adjustment mode.
  • Fig. 2e shows the cutting set shown in Fig. 2d with carrier device and without first cutting element in a view from below.
  • Fig. 2f shows the cutting set shown in Fig. 2c in a side sectional view.
  • Fig. 2g shows the cutting set shown in Figs. 2d and 2e in a side sectional view.
  • Fig. 3a shows a selector switch in an isometric view.
  • Fig. 3b shows the selector switch shown in Fig. 3a in a side view.
  • Fig. 3c shows the selector switch shown in Figs. 3a and 3b in a top view.
  • Fig. 3d shows the selector switch shown in Figs. 3a to 3c in a view from below.
  • Fig. 3e shows the selector switch shown in Figs. 3a to 3d in a front view.
  • Fig. 4a shows a guide shaft in a front view.
  • Fig. 4b shows the guide shaft shown in Fig. 4a in a top view.
  • Fig. 4c shows the guide shaft shown in Figs. 4a and 4b in a sectional view from the front.
  • Fig. 4d shows a cross-section through a plug-in cylinder and a guide carriage holder
  • Fig. 5a shows the guide shaft shown in Figs. 4a to 4c with an adjustment lever in a front view.
  • Fig. 5b shows the guide shaft with adjustment lever shown in Fig. 5a in a top view.
  • Fig. 5c shows the guide shaft with adjustment lever shown in Figs. 5a and 5b in a sectional view from the front.
  • Fig. 6 shows a locking device with a complementary part of a selector switch.
  • Fig. 7a shows another locking device with a complementary part of a selector switch.
  • Fig. 7b shows another locking device with a complementary part of a selector switch.
  • Fig. 7c shows another locking device with a complementary part of a selector switch.
  • Fig. 8a shows another cutting set with an adjustment lever in an isometric view.
  • Fig. 8b shows another cutting set with two adjustment levers in an isometric view.
  • Fig. 9a shows the cutting set shown in Figs. 2c and 2f with a small longitudinal offset in an isometric view.
  • Fig. 9b shows the cutting set shown in Fig. 9a with a large longitudinal offset in an isometric view.
  • Fig. 10b shows a spring clip from a selection device in an isometric view with the selector switch in a second position.
  • Fig. 1 1 a shows different views of a cutting set with an adjustment lever in a position for a long cutting position.
  • Fig. 1 1 b shows different views of a cutting set with an adjustment lever in a position for a middle cutting position.
  • Fig. 1 1c shows different views of a cutting set with an adjustment lever in a position for a short cutting position.
  • Fig. 12a shows different views of a cutting set with an adjustment lever in a position for a long cutting position.
  • Fig. 12b shows different views of a cutting set with an adjustment lever in a position for a middle cutting position.
  • Fig. 12c shows different views of a cutting set with an adjustment lever in a position for a short cutting position.
  • Fig. 1 a shows a hair cutting device 100 in an isometric exploded view.
  • the hair cutting device 100 has a drive device 105.
  • the drive device 105 usually has an electric motor supplied with energy from a battery or via a cable.
  • the hair cutting device 100 also has a blade arrangement 250, which preferably comprises a first cutting element 110, a second cutting element 112, a guide carriage 120, a carrier device 170 and a coupling spring 180.
  • a cutting length adjustment device is also provided, which is designed to adjust the longitudinal displacement between the first and second cutting elements.
  • the cutting length adjustment device has an adjustment lever 140, a selection device 150 with a guide shaft 130 and a selector switch 160.
  • the drive device 105 serves to drive the second cutting element 112.
  • a drive receptacle 114 is provided on the second cutting element 112, which can be coupled to the drive device 105.
  • the drive receptacle 114 is designed as a double wing, between which an eccentrically rotating pin of the drive device is received.
  • the second cutting element 112 can be moved or driven by means of the drive device 105 along and against a transverse direction 402 relative to the first cutting element 110.
  • the second cutting element 112 can also be moved by means of the adjustment lever 140 along and against a longitudinal direction 401 relative to the first cutting element 110.
  • Fig. 1 b shows the hair cutting device 100 shown in Fig. 1 a in a plan view in a completely assembled state.
  • Fig. 2a shows a cutting set 200 in an isometric view.
  • the cutting set 200 has the same components as the hair cutting device 100 shown in Fig. 1a and 1b, except for the drive device 105.
  • the components shown are in the assembled, i.e. operational, state.
  • the carrier device 170 covers the second cutting element 112, the coupling spring 180, the guide carriage 120 and the guide shaft 130 or fixes them against the first cutting element 110 (see Fig. 1a).
  • the selector switch 160 is exposed and thus easily accessible for an operator.
  • the selector switch 160 can, however, also be covered, at least during operation, so that unintentional adjustment or displacement can be prevented.
  • the carrier device 170 In the area of the drive receptacle 114, the carrier device 170 has a recess so that the drive device 105 can be coupled to the drive receptacle 114.
  • Fig. 2b shows the cutting set 200 shown in Fig. 2a in a plan view.
  • Fig. 2c shows the cutting set 200 shown in Figs. 2a and 2b without the carrier device 170 in an isometric view and in a first length adjustment mode 301.
  • the selector switch 160 is displaced on the guide shaft 130 against the transverse direction 402.
  • Fig. 2d shows the cutting set 200 shown in Fig. 2c in a second length adjustment mode 302.
  • the selector switch 160 is displaced along the transverse direction 402 on the guide shaft 130.
  • Fig. 2e shows the cutting set 200 shown in Fig. 2d with the carrier device 170 and without the first cutting element 112 in a view from below.
  • the guide shaft 130 has a coupling spring receptacle 136 in which the coupling spring 180 is received.
  • the coupling spring 180 is also connected to the second cutting element 112.
  • the coupling spring 180 is guided by the guide slide 120 along or against the longitudinal direction 401. In this way, the second cutting element 112 can also be moved along or against the longitudinal direction.
  • Fig. 2f shows the cutting set 200 shown in Fig. 2c in a side sectional view 500-500.
  • the sectional view 500-500 corresponds to the cutting line shown in Fig. 2e and marked with the reference number 500.
  • the selection device 150 (see Fig. 1 a) has a locking device 132 which is arranged on the guide shaft 130. The locking device 132 is in engagement with the selection switch 160.
  • This configuration corresponds to the first length adjustment mode 301 (see Fig. 2c), in which the longitudinal offset of the first and second cutting elements 1 10, 1 12 relative to one another can be adjusted in steps.
  • Fig. 2g shows the cutting set 200 shown in Figs. 2d and 2e in the side sectional view 500-500 also shown in Fig. 2f.
  • the cutting set 200 is in the second length adjustment mode 302 (see Fig. 2d), i.e. the selector switch 160 is not engaged with the locking device 132.
  • the longitudinal offset of the first and second cutting elements 110, 112 relative to one another is continuously adjustable.
  • Fig. 3a shows a selector switch 160 in an isometric view.
  • the selector switch 160 has two snap beads 162, of which only one is visible in Fig. 3a.
  • the selector switch 160 can also have just one snap bead 162 or more than two snap beads 162 or no snap bead 162 at all.
  • the snap bead 162 or the snap beads 162 serve to lock the selector switch 160 in a selection position, which then corresponds to a length setting mode, for example the first or second length setting mode 301, 302.
  • the locking of the selector switch 160 can be designed in particular with the aid of the carrier device 170.
  • the carrier device 170 can for this purpose have one or more snap beads 162 or more snap beads 162 that match the snap bead 162 or the snap beads 162.
  • the selector switch 160 has three locking beads 164 which are designed to interact with the locking device 132. If the hair cutting device 100 or the cutting set 200 is in the first length adjustment mode 301, the three locking beads 164 prevent the guide shaft 130 from being continuously rotated.
  • the three locking beads 164 ensure that the guide shaft 130 can only be rotated in steps, ie from locking bead 164 to locking bead 164. Accordingly, the longitudinal offset of the first and second cutting elements 110, 112 to one another, ie along the longitudinal direction 401, can also only be adjusted in steps. The fineness of the adjustability of the longitudinal offset corresponds to the distance between the individual locking beads 164. In addition, fewer locking beads 164 can be provided, e.g. one locking bead 164 or two locking beads 164, but also more than three locking beads 164, e.g. five, ten or fifteen locking beads 164.
  • Fig. 3b shows the selector switch 160 shown in Fig. 3a in a side view.
  • the three locking beads 164 are arranged essentially on a circular section and are thus arranged facing the locking device 132, which is located on the essentially round guide shaft 130.
  • the two snap beads 162 protrude from the selector switch 160 in the opposite direction to the longitudinal direction 401.
  • Other orientations of the snap beads 162 are also possible, for example that they protrude from the selector switch 160 along the longitudinal direction 401, or protrude from the selector switch 160 along or in the opposite direction to the transverse direction 402 or from an upper side of the selector switch 160.
  • Fig. 3c shows the selector switch 160 shown in Figs. 3a and 3b in a top view. In Fig. 3c, both snap beads 162 are visible.
  • Fig. 3d shows the selector switch 160 shown in Figs. 3a to 3c in a view from below. In Fig. 3d it can be seen that the selector switch 160 here has three further locking beads 164, each of which is arranged opposite one of the three locking beads 164 visible in Figs. 3a and 3b. There is a free space between the locking beads 164 lying opposite one another.
  • Fig. 3e shows the selector switch 160 shown in Figs. 3a to 3d in a view from the front. In principle, the locking beads 164 are not fixed.
  • a plurality of locking beads 164 are formed on the guide shaft 130 or the selector switch, so that a plurality of Adjustment levels are made possible. Fewer locking beads are provided on the complementary counter element, preferably one to five locking beads, but in particular the three locking beads shown here. Three is the best number in terms of a compromise between wear, force to be applied for adjustment and haptic feedback.
  • the locking beads of the guide shaft 130 and the selector switch can each have a different geometry, so that, for example, the selector switch has locking elements that are twice as large as the guide shaft. Finer gradations can then be achieved by using finer locking elements.
  • the geometry of the locking elements should, however, be coordinated so that the locking elements can engage with one another at the same time.
  • Fig. 4a shows a guide shaft 130 in a view from the front.
  • the guide shaft 130 has two adjustment lever receptacles 134 arranged at each lateral end.
  • An adjustment lever 140 can be received in each of the adjustment lever receptacles 134 such that the guide shaft 130 can be rotated by means of the adjustment lever 140.
  • the guide shaft 130 also has two guide carriage receptacles 138, in which in particular two plug-in cylinders of the guide carriage 120 can be received.
  • These plug-in cylinders 124 are in particular arranged on one arm of the guide carriage 120, which extends in the direction of the guide shaft 130. If the guide shaft 130 is rotated, the guide carriage 120 and thus the second cutting element 112 are displaced along or against the longitudinal direction 401.
  • the guide shaft 130 also has two locking devices 132.
  • the guide shaft 130 has a smooth surface directly along the transverse direction 402 next to a locking device 132. If the selector switch 160 or its locking beads 164 are located above the smooth surface, the longitudinal offset can be continuously adjusted.
  • the smooth surfaces are each essentially as wide as the free space between the locking beads 164 visible in Fig. 3d.
  • Fig. 4b shows the guide shaft 130 shown in Fig. 4a in a top view.
  • the two guide carriage receptacles 138 are each limited at the end with respect to the longitudinal direction 401. This makes it possible for the guide carriage 120 to be guided safely both along and against the longitudinal direction 401.
  • Fig. 4c shows the guide shaft 130 shown in Fig. 4a and 4b in a sectional view 510-510 from the front.
  • the sectional view 510-510 corresponds to the cutting line shown in Fig. 4b and marked with the reference numeral 510.
  • the both adjustment lever receptacles 134 each protrude into the guide shaft 130 with respect to the transverse direction 402. In this way, it can be made possible that the adjustment lever 140 can be securely received in the respective adjustment lever receptacle 134.
  • Figure 4d shows a cross section through a guide carriage holder 138 in which a plug-in cylinder 125 is arranged.
  • the guide carriage holder 138 is radially longer than the plug-in cylinder 125 so that the plug-in cylinder 125 can move radially to the axis of the guide shaft 130.
  • the plug-in cylinder is moved in the direction of the cutting elements 110, 112 or away from them (see arrow A) and slides radially in the guide carriage holder 138.
  • Fig. 5a shows the guide shaft 130 shown in Figs. 4a to 4d with an adjustment lever 140 in a view from the front.
  • the adjustment lever 140 is received at its lower end in the adjustment lever holder 134 shown on the left in the view.
  • the adjustment lever 140 also has a first actuation area 141, via which the adjustment lever 140 can be actuated or rotated along the longitudinal direction 401 (i.e. rotates about the axial direction 402).
  • the guide shaft 130 is also rotated along the longitudinal direction 401 or about the axial direction 402 of the longitudinal axis of the guide shaft.
  • Fig. 5b shows the guide shaft 130 shown in Fig. 5a with the adjustment lever 140 in a top view.
  • the adjustment lever 140 also has a second actuation area 142 with which the adjustment lever 140 can be actuated counter to the longitudinal direction 401.
  • the guide shaft 130 is also rotated counter to the longitudinal direction 401.
  • Fig. 5c shows the guide shaft 130 with adjustment lever 140 shown in Figs. 5a and 5b in a sectional view 520-520 from the front.
  • the sectional view 520-520 corresponds to the cutting line shown in Fig. 4b and marked with the reference numeral 520.
  • Fig. 6 shows a locking device 132 with a part of a selector switch 160 that is complementary to it.
  • Fig. 6 shows the part of the selector switch 160 in or on which the locking beads 164 are arranged.
  • the locking device 132 has a plurality of locking teeth 133, whereby only two locking teeth 133 are shown in Fig. 6.
  • the locking teeth 133 are designed to be complementary to the locking beads 164.
  • a locking bead 164 is arranged between two Locking teeth 133 are arranged or a locking tooth 133 is arranged between two locking beads 164, with an outer surface of a locking tooth 133 touching an outer surface of a locking bead 164.
  • the fineness of the step-by-step adjustment of the longitudinal offset in the first length adjustment mode 301 can be adjusted by means of the distance between the locking beads 164 or locking teeth 133. If the distances between the locking beads 164 or locking teeth 133 are small, the longitudinal offset can be adjusted finely, while if the distances are large, the longitudinal offset can be adjusted coarsely. It is also possible for both the first and the second length adjustment mode 301, 302 to enable the longitudinal offset to be adjusted step by step.
  • a selection device 150 can be provided (cf. Fig. 1 a), with which the selector switch 160 can be displaced between two differently designed locking devices 132, wherein the two locking devices 132 are designed with different configurations of the locking teeth 133, each with a different distance between the locking teeth 133.
  • Fig. 7a shows a further locking device 132 with a part of a selector switch 160 that is complementary to this.
  • the locking device 132 has a plurality of locking teeth 133 that are distributed over the entire circumference of the locking device 132. This makes it possible for the guide shaft 130 to be completely rotatable about its longitudinal axis at least once. Only two of the locking teeth 133 are identified with reference numerals.
  • the part of the selector switch 160 shown, on the other hand, has only four adjacent locking beads 164, of which only two are identified with reference numerals in the illustration.
  • Fig. 7b shows a further locking device 132 with a part of a selector switch 160 that is complementary to this one.
  • the locking device 132 shown in Fig. 7b has locking teeth 133 distributed only around approximately half its circumference. This makes it possible for the guide shaft 130 to be rotated by approximately 180°.
  • Fig. 7c shows a further locking device 132 with a part of a selector switch 160 that is complementary to this.
  • the part of the selector switch 160 shown has a plurality of locking beads 164 or locking teeth 133 distributed around its entire circumference.
  • the locking device 132 like the locking device 132 shown in Fig. 7b, has locking teeth 133 distributed around approximately half its circumference.
  • Fig. 8a shows another cutting set 200 with an adjustment lever 140 in an isometric view. In contrast to the cutting sets 200 shown in Figs. 2a to 2e, the adjustment lever in the cutting set 200 shown in Fig.
  • the guide shaft 130 has two opposing adjustment lever receptacles 134 for this purpose, as shown in Figs. 4a to 4c.
  • the adjustment lever 134 is arranged on the left or right of the cutting set 200 depending on the preference of the operator, e.g. for a right-handed operator as shown in Fig. 8a on the right side or for a left-handed operator as shown in Figs. 2a to 2e on the left side.
  • Fig. 8b shows another cutting set 200 with two adjustment levers 140 in an isometric view.
  • Such a cutting set can be easily handled by both right-handed and left-handed operators.
  • Fig. 9a shows the cutting set 200 shown in Figs. 2c and 2f with a slight longitudinal offset in an isometric view.
  • the adjustment lever 140 is offset very far forward along the longitudinal direction 401. In this way, the guide shaft 130 is rotated along the longitudinal direction 401 and the front edges of the first and second cutting elements 110, 112 are arranged close to one another.
  • Fig. 9b shows the cutting set 200 shown in Fig. 9a with a large longitudinal offset in an isometric view.
  • the adjustment lever 140 is offset very far to the rear against the longitudinal direction 401. In this way, the guide shaft 130 is rotated against the longitudinal direction 401 and the front edges of the first and second cutting elements 110, 112 are arranged far apart.
  • Fig. 10a and 10b show a locking plate 152 for a selection device in which the selection switch 160 is designed separately from the locking bead 164.
  • switching between a step-by-step and continuous setting is carried out by a locking bead 164 locking into the locking device 132 (for example between the locking teeth 133 or in a recess formed on the guide shaft 130) or being moved away from the locking device 132.
  • one locking device 132 is sufficient for the locking plate 152, but several locking devices 132 can also be provided on the guide shaft 130. and preferably also complementary to this, several laterally offset locking beads 164 on the locking plate. Likewise, several locking beads can be arranged one behind the other on the locking plate.
  • the locking plate 152 has a spring clip 156 which is pre-tensioned in the direction of the locking device.
  • the selector switch 160 can be in a locking position and in a freewheel position. In the locking position, the selector switch 160 is not in engagement with the locking plate 152.
  • the spring clip 156 of the locking plate is in engagement with the locking device 132 due to the pre-tension and signals, for example via the interaction of the locking bead 164 with the locking teeth 133 of the locking device 132, the stepped length adjustment of the cutting blades.
  • the selector switch 160 is then pushed into a freewheel position, the spring clip of the locking plate is lifted out of engagement with the locking device 132 and the mode of continuous length adjustment is provided.
  • this is accomplished in such a way that a ramp 161 on the selector switch 160 lifts the end 154 of the spring clip 156 out of engagement with the locking device 132 by moving the selector switch 160.
  • the end 154 of the spring clip 156 can then preferably latch into a depression 163 in the freewheel position, so that accidental or spontaneous slipping of the selector switch 160 can be avoided.
  • Figures 11a, 11b, 11c, 12a, 12b and 12c each show two side views, a top view and a sectional view of a cutting set 200 with a locking plate 152.
  • the cutting set 200 has the same components as the cutting sets shown in Figures 2a and 2b, except for the different design of the selector switch 160 and the locking plate 152.
  • the selector switch is in a locking position so that the spring clip 156 is locked into the locking device 132 of the guide shaft 130.
  • a long cutting length is set in which the cutting blades are far apart.
  • Figure 11b a medium cutting length is set and in Figure 11c, a short cutting length.
  • the locking bead 164 has jumped one locking tooth 133 further.
  • the selector switch is in a freewheel position so that the spring clip 156 is lifted out of the locking device 132 of the guide shaft 130.
  • a long cutting length is set in which the cutting blades are spaced apart by a large distance.
  • a medium cutting length is set and in Figure 12c, a short cutting length.
  • the locking bead 164 is lifted off the locking device here, since the cutting length adjustment is continuous.
  • the locking plate 152 can be combined as desired with the previously described embodiments (one or two locking devices, all lever designs, etc.) provided that instead of a lateral displacement of the locking bead 164, the locking and moving out described in connection with the locking plate 152 can be used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

L'invention concerne un appareil de coupe de cheveux (100) qui comprend un agencement de lame (250) ayant un premier élément de coupe (110) et un second élément de coupe mobile (112), un dispositif d'entraînement qui entraîne l'agencement de lame (200), un dispositif de réglage de longueur de coupe (130) qui interagit avec le second élément de coupe (112) de telle sorte qu'un décalage longitudinal entre le premier élément de coupe (110) et le second élément de coupe (112) peut être réglé, l'appareil de coupe de cheveux (100) comprenant également un dispositif sélecteur (150) avec lequel le dispositif de réglage de longueur de coupe (130) peut être déplacé entre au moins un premier mode de réglage de longueur (301) et au moins un second mode de réglage de longueur (302), le décalage longitudinal pouvant être réglé de manière progressive ou continue dans le premier mode de réglage de longueur (301) et le décalage longitudinal pouvant être réglé de manière progressive dans le second mode de réglage de longueur (302).
PCT/EP2023/081021 2022-11-07 2023-11-07 Appareil de coupe de cheveux et unité de coupe pour un appareil de coupe de cheveux WO2024100054A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP22205934.7A EP4364908A1 (fr) 2022-11-07 2022-11-07 Dispositif de coupe de cheveux et ensemble de coupe pour dispositif de coupe de cheveux
EP22205934.7 2022-11-07

Publications (1)

Publication Number Publication Date
WO2024100054A1 true WO2024100054A1 (fr) 2024-05-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/081021 WO2024100054A1 (fr) 2022-11-07 2023-11-07 Appareil de coupe de cheveux et unité de coupe pour un appareil de coupe de cheveux

Country Status (2)

Country Link
EP (1) EP4364908A1 (fr)
WO (1) WO2024100054A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE628752C (de) * 1933-09-14 1936-04-15 Wilhelm Oehler Haarschneidemaschine
DE1553760A1 (de) * 1965-10-28 1970-07-16 Moser Gmbh Kuno Haarschneidemaschine
US3531862A (en) * 1968-09-11 1970-10-06 Vernco Corp Taper adjustment mechanism for clipper
EP0856386A1 (fr) * 1997-01-31 1998-08-05 Wella Aktiengesellschaft Tondeuse à cheveux électrique
DE19850919A1 (de) * 1998-11-05 2000-05-11 Moser Elektrogeraete Gmbh Haarschneidemaschine mit Schnittlängen-Verstelleinrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE628752C (de) * 1933-09-14 1936-04-15 Wilhelm Oehler Haarschneidemaschine
DE1553760A1 (de) * 1965-10-28 1970-07-16 Moser Gmbh Kuno Haarschneidemaschine
US3531862A (en) * 1968-09-11 1970-10-06 Vernco Corp Taper adjustment mechanism for clipper
EP0856386A1 (fr) * 1997-01-31 1998-08-05 Wella Aktiengesellschaft Tondeuse à cheveux électrique
DE19850919A1 (de) * 1998-11-05 2000-05-11 Moser Elektrogeraete Gmbh Haarschneidemaschine mit Schnittlängen-Verstelleinrichtung

Also Published As

Publication number Publication date
EP4364908A1 (fr) 2024-05-08

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