EP3625007B1 - Messerkopf für eine haarschneidemaschine - Google Patents

Messerkopf für eine haarschneidemaschine Download PDF

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Publication number
EP3625007B1
EP3625007B1 EP18726746.3A EP18726746A EP3625007B1 EP 3625007 B1 EP3625007 B1 EP 3625007B1 EP 18726746 A EP18726746 A EP 18726746A EP 3625007 B1 EP3625007 B1 EP 3625007B1
Authority
EP
European Patent Office
Prior art keywords
cutter head
shaft
housing
actuating element
receptacles
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP18726746.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3625007A2 (de
Inventor
Reinhard Kruse
Alfred Isaacs
Katharina Huck
Bernd Schmitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Exonda Salon Tools GmbH
Original Assignee
Exonda Salon Tools 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 Exonda Salon Tools GmbH filed Critical Exonda Salon Tools GmbH
Publication of EP3625007A2 publication Critical patent/EP3625007A2/de
Application granted granted Critical
Publication of EP3625007B1 publication Critical patent/EP3625007B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/06—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth
    • B26B19/063—Movable or adjustable cutting head
    • 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
    • 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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/06—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth
    • 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
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle
    • B26B19/386—Means for attaching the head thereto
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3873—Electric features; Charging; Computing devices
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3886—Actuating members, e.g. switches or control knobs

Definitions

  • the invention relates to a cutter head for a hair clipper with an upper cutter and a lower cutter adjustable relative to this by means of an actuating element, comprising a carrier with an adjusting element which can be adjusted to this via the actuating element and causes a relative movement between the upper and lower cutter in the cutting direction and which has an adjusting element in section U - and / or C-shaped geometry, the transverse or base limb of which is connected to the lower knife, wherein a first element interacts with at least one of the side limbs of the adjusting element for adjusting the adjusting element by means of the actuating element.
  • the invention also relates to the use of a cutter head.
  • a hair clipper of the type mentioned is the U.S. 2,265,880 A refer to.
  • the adjusting element is penetrated by a screw which can be screwed into a solid section of the housing of the hair clipper.
  • a corresponding cutter head can be used by a right-hander, but not by a left-hander, to adjust the lower cutter to the upper cutter.
  • a hair clipper is known with an actuating element which can be repositioned in order to enable use for a right-handed and a left-handed person.
  • Hair clippers according to the US 6,742,262 B2 , US 8 341 846 B1 or U.S. 3,093,901 A are designed for right-handers only.
  • a left-handed person who has to adjust the lower knife relative to the upper knife cannot, in principle, do this with one hand.
  • the ease of use suffers as a result.
  • the present invention is based on the object of developing a cutter head of the type mentioned at the outset in such a way that, with structurally simple measures, it can be used without problems by both right-handers and left-handers.
  • the invention provides that a shaft is mounted in the carrier, from which the first element protrudes, and that the actuating element is designed to be optionally inserted into one of two opposite side areas of the carrier and releasably connected to the shaft will.
  • the actuating element can be repositioned so that one-handed operation is possible both by a right-handed and by a left-handed person in order to easily adjust the lower cutter relative to the upper cutter.
  • the adjusting element is connected to the lower cutter, i.e. that the lower cutter can be adjusted relative to the housing.
  • the adjustment element that moves the lower cutter relative to the upper cutter can be accommodated by a guide by means of which the adjustment element is adjusted in a translatory manner when the actuating element is rotated.
  • the actuating element can be connected to the first element extending from the shaft mounted in the carrier.
  • the shaft can be detachably connected to the actuating element.
  • the shaft or the first element emanating from it can interact with the adjusting element, it is provided in particular that the first element protruding from the shaft, which is referred to as the driver, interacts with the adjusting element, in particular in a recess provided in the adjusting element intervenes or vice versa.
  • the latter means that a projection can extend from the adjusting element which engages in a recess of the first element extending from the shaft.
  • the adjusting element of U- and / or C-shaped geometry as the second element is in particular a bent sheet metal element, the base or transverse leg of which is connected to the lower blade. At least one of the side legs interacts with the at least one first element protruding from the shaft.
  • U- and C-shaped geometry means that one section can have a U-shaped and another section can have a C-shaped geometry.
  • first elements protrude from the shaft and interact with the side legs of the adjusting element.
  • the first elements or drivers preferably start from the ends of the shaft.
  • the shaft extends from the support that can be fixed in the housing of the hair clipper, the support preferably having cuboid areas with a surface running parallel to the top of the lower blade, which at least in sections forms a guide for the adjustment element.
  • inwardly angled edge areas of the side legs can be displaced along the surface and, in particular, contact them in the process.
  • the carrier with the shaft can snap into the housing.
  • the adjusting element and thus the lower knife and the upper knife are connected to the carrier.
  • the latter is acted upon by force in the direction of the lower blade by means of a spring element which can be designed in sections as a helical spring and preferably has two legs with cranked end sections extending in the longitudinal direction of the adjusting element.
  • the legs for their part are supported on a plate-shaped pressure element which is movably mounted in a groove of the upper knife running parallel to the front side of the upper knife.
  • an insert can be connected to the upper cutter in a known manner and can be inserted into which a pin-shaped section of the output shaft of the drive engages.
  • the pin-shaped section runs eccentrically to the axis of the output shaft, whereby the back and forth movement of the upper knife to the lower knife is made possible.
  • the carrier in its side sections each having a hollow cylinder geometry having a receptacle, that the actuating element has a section, the outer geometry of which is adapted at least in sections to the receptacle and engages in this for actuation, and that in particular from the section a pin-shaped projection extends parallel to the section engaging in the receptacle the shaft and engages in the first element, such as the driver.
  • the first element i.e. the driver
  • the actuating element is connected to the shaft mounted in the carrier and thus the housing, in particular via a screw element.
  • the screw element can have a head, between which and the section of the actuating element engaging in the receptacle of the carrier a spring element, such as a helical or plate spring, runs.
  • a spring element such as a helical or plate spring
  • the opening in the bottom wall prefferably has a lateral boundary extending from the recess, which are stops for the pin-shaped projection of the actuating element and thus for the rotary movement of the actuating element.
  • the invention is also characterized by the use of a cutter head of the type described above for a hair clipper comprising a first housing and the knife head that can be fixed in place in the first housing, with a drive for the upper or lower cutter being present in the hair clipper, which via a Rotary coupling can be connected to an external voltage source.
  • the drive present in the housing of the hair clipper can be electrically connected to an external voltage source via a rotary coupling, so that the hair clipper can be handled easily without the electrical cable being an obstruction.
  • the rotary coupling has a housing with a cylindrical end section running on the hair clipper housing side, from which ring elements arranged at a distance from one another protrude radially, and that, when the rotary coupling is connected to the housing of the hair clipper, a disk-shaped partition wall of the housing of the hair clipper is between the two ring elements between the two ring elements an axial movement of the rotary coupling with a simultaneous enabling rotational movement.
  • the partition is in particular a perforated disk element.
  • the housing of the hair clipper there is also a second partition running parallel to the first partition, and that when the rotary coupling is connected to the housing, the distally extending ring element extends between the first and second partition.
  • the distance between the first and second partition is the thickness of the Ring element adapted, so that a further safeguard against axial adjustment of the rotary coupling to the housing of the hair clipper is given.
  • a cutter head 10 is shown, which can be inserted into a shown housing 200 of a hair clipper 202 and, in particular, can be latched in this.
  • the cutter head 10 When using the hair clipper 202, the cutter head 10 is fixed in place in the housing.
  • the cutter head 10 is designed in such a way that the hair clipper 202 can be operated with one hand by both right-handers and left-handers in order to change the cutting depth.
  • the cutter head 10 has a lower cutter 12 and an upper cutter 14. With the lower knife 12 a bracket 16 to be designated as an adjusting element is connected, which is connected to the lower blade via screws 18, 20.
  • the adjusting element or the holder 16 is referred to as the second element.
  • the bracket 16 has a C-shape in section with base or transverse legs 22 and side legs 24, 26 which have inwardly developed edge sections 28, 30 which, in the exemplary embodiment, do not extend over the entire width of the side legs 24, 26.
  • edge sections 28, 30 which, in the exemplary embodiment, do not extend over the entire width of the side legs 24, 26.
  • the cutter head 10 also has a carrier 32 which is fixed in place in the housing 200 of the hair clipper 202.
  • the carrier 32 which can also be referred to as the cutting insert carrier, has a frame 34 with side walls 36, 38, to which parallel cuboid sections 40, 42 with upper guide surfaces 44, 46 run at a distance, along which the inwardly angled edge sections 28, 30 of the holder extend at least in sections 16 and contact them if necessary.
  • the surfaces 44, 46 are thus guide surfaces for the inwardly angled sections 28, 30 of the holder 16 and thus a guide for the holder 16 itself.
  • the side legs 24, 26 extend in the respective gap between the side walls 36, 38 and the sections 40, 42.
  • the carrier 32 In the rear area, i.e. away from the cutting edges 90, 98 of the upper and lower cutter 14, 12, the carrier 32 has receiving eyes 48, 50 in the area of the side walls 36, 38, each of which is delimited on the inside by a bottom wall 52, which in turn has an opening 54 with a recess 56 extending therefrom and extending in the bottom wall and having lateral boundaries 58, 60.
  • An axis or shaft 62 which is connected to threaded sections 64, 66 of screws 68, 70, which can be inserted into the eyes 48, 50, runs between the eyes 48, 50.
  • the rotatable mounting takes place via sections 65, 67 of the screws 68, 70.
  • a spring 72 with two helical sections 74, 76 extends from the shaft 62, each of which has a protruding leg 78, 80 with bent ends 82, 84.
  • the cranked ends 82, 84 of the legs 78, 80 are supported on a flat-plate-shaped pressure element 86, which has a U-geometry in section and which in turn penetrates a slot 45 in the carrier 32 and is supported on a groove 88 of the outer cutter 14, which is parallel runs to the cutting edge 90 of the upper knife 14. This forms a bearing for the pressure element 86.
  • the cranked ends 82, 84 of the legs 78, 80 are supported in recesses such as grooves in the upper edge of the pressure element 86.
  • a driver 92 can be used, which interacts with a drive present in the hair clipper housing.
  • the driver 92 has an extension 94 with a slot 96 in which a pin extending from the output shaft of the drive engages.
  • the pin is arranged eccentrically to the longitudinal axis of the output shaft, so that when the output shaft rotates, the upper cutter 14 is set in motion in oscillation parallel to the cutting edge 90.
  • an actuating element 100 designed as a lever in the exemplary embodiment, is provided, which can either be inserted into the eye 48 or the Eye 50 can be used, depending on whether the hair clipper is to be operated by a right-handed or a left-handed person.
  • the lever 100 has a cylindrical section 102 adapted to the inner geometry of the eye 48, 50, which runs transversely to the longitudinal axis of the lever 100 and, in the exemplary embodiment, consists of two sections 104, 106 of different diameters.
  • the internal geometry of each eye 48, 50 is designed accordingly.
  • a step extends between the sections 104 and 106, from which a pin-shaped element 108 protrudes, which in the exemplary embodiment used in the eye 48 of the lever 100 interacts with a driver 110, referred to as the first element, which protrudes from the shaft 62.
  • the driver 110 has an eight-shaped geometry in a front view, with an opening 114 being provided in the upper section 112, into which the pin 108 engages when the lever 100 is inserted in the eye 48.
  • the driver 110 is firmly connected to the shaft 62, which is rotatably mounted via the sections 65, 67 of the screws 68, 70.
  • An identical driver 120 extends from the other end of the shaft 62 on the opposite side.
  • the driver 110 engages in a recess 116 in the side leg 26 of the holder 16.
  • a corresponding recess 118 is also found in the opposite leg 24, into which the driver 120 engages, which likewise extends from the shaft 62.
  • the geometry of the driver 120 corresponds to that of the driver 110.
  • the recess 116 in the side leg 26 has a slot 124 which, at least on one side, is adapted to the geometry of the sections 112 and 122 of the driver 110. Opposite the slot can be delimited by a straight wall 126.
  • the screw 68 is loosened, the lever 100 and the spring 130 are pulled out of the eye 48 and, after the screw 70 has been removed, inserted into the opposite eye 50.
  • the screw 70 is then fixed in the eye 48, the shaft 62 being supported at the same time.
  • the recess 56 is provided, which starts from the opening 54 in the bottom wall 52 of the respective eye 48, 50.
  • the pin 108 interacts with the delimiting walls 58, 60, specifically the section of the pin 108 which extends along the outside of the inner cylindrical region 104 of the section 102 of the lever 100.
  • the carrier 32 also has inner walls 37, 39 running parallel to one another, between which the section 94 of the driver 92 extends with the slot 96 in which the output shaft engages.
  • the walls 37, 39 have edge sections 41, 43 angled outwards, below which the legs 78, 80 of the spring extend.
  • the housing 200 of the hair clipper 202 is shown in an exploded view.
  • the housing 200 consists of a lower and upper shell 204, 206 which, when assembled, delimit an interior space in which, among other things, the electric motor 208 for driving the upper cutter 88, a circuit board 210 having an electronic circuit and an electrically conductive plug connection 216 to a Rotary coupling 218 are arranged.
  • the rotary coupling 218 is used to establish a connection between a power supply unit 221 that can be connected to a voltage source in order to supply the motor 208 with current.
  • the rotary coupling 218 has a cylindrical housing 220, from which a distal cylindrical section 222 extends, from which two annular disks 224, 226 protrude radially.
  • the annular disks 224, 226 engage in the housing 200 in order to be able to move the housing 200 in a rotational manner relative to the rotary coupling 218.
  • an intermediate wall 228 called perforated disks engages in the space between the annular disks 224, 226 when the housing 200 is assembled.
  • the perforated disk 228 is composed of partial halves, one of which extends from the shell 204 and the other from the shell 206.
  • a further intermediate wall 234 runs in the housing 200, on which the distal surface of the annular disk 224 adjoins or rests.
  • the ring element 224 is penetrated by the electrical contacts 236, which interact with the plug connection 216 in the manner of a sliding contact in order to supply the motor 208 with current.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
EP18726746.3A 2017-05-15 2018-05-09 Messerkopf für eine haarschneidemaschine Active EP3625007B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017110525.5A DE102017110525A1 (de) 2017-05-15 2017-05-15 Haarschneidemaschine bzw. Messerkopf für eine solche
PCT/EP2018/062083 WO2018210670A2 (de) 2017-05-15 2018-05-09 Haarschneidemaschine bzw. messerkopf für eine solche

Publications (2)

Publication Number Publication Date
EP3625007A2 EP3625007A2 (de) 2020-03-25
EP3625007B1 true EP3625007B1 (de) 2021-12-01

Family

ID=62235923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18726746.3A Active EP3625007B1 (de) 2017-05-15 2018-05-09 Messerkopf für eine haarschneidemaschine

Country Status (8)

Country Link
US (1) US11267146B2 (ru)
EP (1) EP3625007B1 (ru)
KR (1) KR102178408B1 (ru)
CN (1) CN110621457A (ru)
CA (1) CA3058982C (ru)
DE (1) DE102017110525A1 (ru)
RU (1) RU2731632C1 (ru)
WO (1) WO2018210670A2 (ru)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11104017B2 (en) * 2019-05-31 2021-08-31 Conair Corporation Hair cutter blade gap adjustment system
US11639007B2 (en) * 2019-08-15 2023-05-02 Wahl Clipper Corporation Apparatus for releasably locking a stationary blade to a hair clipper
USD972215S1 (en) * 2020-05-22 2022-12-06 Andis Company Hair clipper
EP4171901A4 (en) * 2020-06-25 2024-04-03 Andis Company BLADE HINGE ASSEMBLY
US20240181663A1 (en) * 2022-12-02 2024-06-06 Conair Llc Quick change blade assembly system

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GB591709A (en) * 1945-05-10 1947-08-26 Ferdinand Majer Improvements in or relating to electrically driven hair cutting machines
US2006493A (en) * 1931-10-08 1935-07-02 Andis Mathew Comb plate adjusting mechanism for hair clippers
US2265880A (en) * 1941-10-20 1941-12-09 Wahl Clipper Corp Hair clipper
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US2795967A (en) * 1952-12-10 1957-06-18 Wahl Clipper Corp Clipper construction
US2731720A (en) * 1954-06-25 1956-01-24 Glen L Henard Comb blade structure and arrangement for adjustable hair clipper
US2795848A (en) * 1954-10-04 1957-06-18 Andis Clipper Co Hair clipper blade adjustment
US2869234A (en) * 1957-08-26 1959-01-20 Andis Clipper Co Hair clipper having a shiftable shear plate
DE1090544B (de) * 1959-07-10 1960-10-06 Feinmechanik Vormals Jetter & Haarschneidemaschine
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Also Published As

Publication number Publication date
RU2731632C1 (ru) 2020-09-07
CA3058982A1 (en) 2018-11-22
US11267146B2 (en) 2022-03-08
KR20200006573A (ko) 2020-01-20
CN110621457A (zh) 2019-12-27
WO2018210670A2 (de) 2018-11-22
CA3058982C (en) 2023-05-16
KR102178408B1 (ko) 2020-11-13
US20200156271A1 (en) 2020-05-21
WO2018210670A3 (de) 2019-01-10
EP3625007A2 (de) 2020-03-25
DE102017110525A1 (de) 2018-11-15

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