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EP4516469A3 - Blade assembly having entrapped spring - Google Patents

Blade assembly having entrapped spring

Info

Publication number
EP4516469A3
EP4516469A3 EP25152121.7A EP25152121A EP4516469A3 EP 4516469 A3 EP4516469 A3 EP 4516469A3 EP 25152121 A EP25152121 A EP 25152121A EP 4516469 A3 EP4516469 A3 EP 4516469A3
Authority
EP
European Patent Office
Prior art keywords
blade
spring
guide
relative
blade assembly
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.)
Pending
Application number
EP25152121.7A
Other languages
German (de)
French (fr)
Other versions
EP4516469A2 (en
Inventor
Edwin A Werner
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.)
Andis Co
Original Assignee
Andis Co
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
Priority claimed from US16/381,340 external-priority patent/US11014253B2/en
Application filed by Andis Co filed Critical Andis Co
Publication of EP4516469A2 publication Critical patent/EP4516469A2/en
Publication of EP4516469A3 publication Critical patent/EP4516469A3/en
Pending legal-status Critical Current

Links

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
    • B26B19/02—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
    • 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
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3806—Accessories
    • 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
    • B26B19/3846—Blades; Cutters

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

A blade assembly for a hair cutting apparatus includes a first blade having teeth extending along a first blade edge, and a second blade having teeth extending along a second blade edge. A distance between the first and second blade edges defines a blade gap. A yoke is coupled to the second blade and configured to convert motion of a drive into reciprocation of the second blade relative to the first blade to cut hair. A spring includes a spring base and at least one spring arm configured to reciprocate with the second blade. A guide assembly includes a guide and a spring retainer, the guide being positioned between the first blade and the second blade, and the spring retainer fixing the spring base relative to the first blade, wherein in response to moving the guide relative to the first blade, the blade gap changes.
EP25152121.7A 2019-04-11 2020-03-26 Blade assembly having entrapped spring Pending EP4516469A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/381,340 US11014253B2 (en) 2014-09-17 2019-04-11 Blade assembly having entrapped spring
PCT/US2020/024955 WO2020210043A1 (en) 2019-04-11 2020-03-26 Blade assembly having entrapped spring
EP20787283.9A EP3953118B1 (en) 2019-04-11 2020-03-26 Blade assembly having entrapped spring

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP20787283.9A Division EP3953118B1 (en) 2019-04-11 2020-03-26 Blade assembly having entrapped spring
EP20787283.9A Division-Into EP3953118B1 (en) 2019-04-11 2020-03-26 Blade assembly having entrapped spring

Publications (2)

Publication Number Publication Date
EP4516469A2 EP4516469A2 (en) 2025-03-05
EP4516469A3 true EP4516469A3 (en) 2025-07-23

Family

ID=72752069

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20787283.9A Active EP3953118B1 (en) 2019-04-11 2020-03-26 Blade assembly having entrapped spring
EP25152121.7A Pending EP4516469A3 (en) 2019-04-11 2020-03-26 Blade assembly having entrapped spring

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20787283.9A Active EP3953118B1 (en) 2019-04-11 2020-03-26 Blade assembly having entrapped spring

Country Status (4)

Country Link
EP (2) EP3953118B1 (en)
CN (2) CN113677488B (en)
AU (1) AU2020272580B2 (en)
WO (1) WO2020210043A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022260869A1 (en) * 2021-06-11 2022-12-15 Wahl Clipper Corporation Hair clipper bladeset with combined drive elements
CN116141387B (en) * 2023-03-02 2025-08-15 深圳市德龙电器有限公司 Electric hair clipper head capable of adjusting distance between moving blade and stationary blade tip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080282550A1 (en) * 2008-06-30 2008-11-20 Andis Company Blade assembly
US20100000093A1 (en) * 2008-07-07 2010-01-07 Kingdom International Co., Ltd. Hair clipper blade assembly
WO2017120610A2 (en) * 2016-01-10 2017-07-13 Walker & Co. Brands, Inc. Trimmer device with an adjustable cutting assembly
US20170348865A1 (en) * 2014-09-17 2017-12-07 Andis Company Blade assembly having entrapped spring

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589007A (en) * 1969-02-24 1971-06-29 Wahl Clipper Corp Electric hair clipper
DE19859016C2 (en) * 1998-12-21 2000-12-14 Braun Gmbh Hair clipper
TWM264085U (en) * 2004-09-01 2005-05-11 Jeng Shyuan Prec Co Ltd Improved structure of head of hair clipper
FR2992251B1 (en) * 2012-06-20 2014-08-01 Seb Sa ELECTRIC MOWER WITH NEW FIXING OF A CUTTING HEAD
US11014253B2 (en) * 2014-09-17 2021-05-25 Andis Company Blade assembly having entrapped spring
US9545729B2 (en) * 2015-03-26 2017-01-17 Wahl Clipper Corporation Hair trimmer blade set with adjustable blades
WO2017153482A1 (en) * 2016-03-08 2017-09-14 Koninklijke Philips N.V. Blade set manufacturing method, blade set and hair cutting appliance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080282550A1 (en) * 2008-06-30 2008-11-20 Andis Company Blade assembly
US20100000093A1 (en) * 2008-07-07 2010-01-07 Kingdom International Co., Ltd. Hair clipper blade assembly
US20170348865A1 (en) * 2014-09-17 2017-12-07 Andis Company Blade assembly having entrapped spring
WO2017120610A2 (en) * 2016-01-10 2017-07-13 Walker & Co. Brands, Inc. Trimmer device with an adjustable cutting assembly

Also Published As

Publication number Publication date
CN113677488B (en) 2023-11-10
AU2020272580A1 (en) 2021-10-14
WO2020210043A1 (en) 2020-10-15
EP3953118A4 (en) 2022-12-14
EP3953118A1 (en) 2022-02-16
CN113677488A (en) 2021-11-19
EP4516469A2 (en) 2025-03-05
EP3953118B1 (en) 2025-02-19
CN117464727A (en) 2024-01-30
AU2020272580B2 (en) 2025-10-30

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