EP0400800A1 - Couteaux à lame cassable - Google Patents

Couteaux à lame cassable Download PDF

Info

Publication number
EP0400800A1
EP0400800A1 EP90304342A EP90304342A EP0400800A1 EP 0400800 A1 EP0400800 A1 EP 0400800A1 EP 90304342 A EP90304342 A EP 90304342A EP 90304342 A EP90304342 A EP 90304342A EP 0400800 A1 EP0400800 A1 EP 0400800A1
Authority
EP
European Patent Office
Prior art keywords
knife
handle
piece
blade
handle part
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.)
Withdrawn
Application number
EP90304342A
Other languages
German (de)
English (en)
Inventor
Richard Gilbert
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.)
Stanley Works Ltd
Original Assignee
Stanley Works Ltd
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 Stanley Works Ltd filed Critical Stanley Works Ltd
Publication of EP0400800A1 publication Critical patent/EP0400800A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use
    • B26B5/002—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use segmented blades

Definitions

  • This invention relates to snap-off blade knives.
  • a known type of snap-off blade knife comprises a handle made of two parts which assemble together for normal use of the knife, a first said part including guide means for a snap-off blade and for a slider for selective extension and retraction of the blade, the second said part of the handle being separable from the first part and being formed with a slot, such that a used end-piece of a blade can be broken-off by introduction of the end-piece into the slot followed by manipulation of the first and second handle parts to snap-off the end-piece.
  • the invention provides a snap-off blade knife as claimed in each of the claims, to which reference is directed.
  • Figs. 1 to 21 inclusive illustrate a snap-off blade knife forming a first embodiment of the invention
  • a snap-off blade knife 110 comprises a handle 112 made of two parts 114, 116 which assemble together for normal use of the knife.
  • the handle part 114 (see Figs. 7 to 10) includes guide means 118 for guiding a snap-off blade 120 and for guiding a slider 122 (Figs. 15 to 17) for selective extension and retraction of the blade 120.
  • Handle part 114 is formed with conventional teeth 124 for engagement by the slider 122 to hold the slider 122 in any desired position along the handle 112.
  • the second part 116 (Figs. 18 to 21) of the handle 112 is separable from the first part 114.
  • the handle part 116 is formed with a compartment 126, for containment of broken-off, used, blade pieces 128, and is also formed with a slot 130, leading into the compartment 126, such that a used end-piece 128 of the blade 120 can be broken-off by introduction of the end-piece 128 into the slot 130 followed by manipulation of the first and second handle parts 114, 116 to snap-off the end-piece 128.
  • the handle part 114 is formed with a tail-piece 132 which acts as a cover, closing off the slot 130 to prevent egress of blade pieces 128 from compartment 126, when the first and second handle parts 114, 116 are assembled together for normal use of the knife 110..
  • the second handle part 116 comprises a detachable lid 134 (Figs. 11 to 14) for permitting emptying of the compartment 126 of blade pieces 128.
  • the lid 134 has a projection 135 with an undercut 137 for engaging handle part 116 as shown in Fig. 6, to hold the lid 134 normally in place.
  • the slot 130 is in a wall 139 of the compartment 126.
  • the front end 136 of handle part 114 projects through an aperture 138 (Figs. 18, 20) at the front end 140 of handle part 116.
  • the aperture 138 is formed between a base 142 and side walls 144, 146, on the one hand, and a bridging-piece 148, on the other hand, which extends across from side wall 144 to the other side wall 146.
  • the bridging-piece 148 occupies a groove 150 formed in the surface of handle part 114.
  • the handle part 114 Adjacent the tail-piece 132, the handle part 114 is formed with a projection 152, which projects through an aperture 154 in the handle part 116.
  • a snap-off blade knife 210 comprises a handle 212 made of two parts 214, 216 which assemble together for normal use of the knife.
  • the handle part 214 (see Figs. 22 to 27) includes guide means 218 for guiding a snap-off blade 220 and for guiding a slider 222 (Figs. 22, 25, 27) for selective extension and retraction of the blade 220.
  • Handle part 214 is formed with conventional teeth 224 for engagement by the slider 222 to hold the slider 222 in any desired position along the handle 212.
  • the second part 216 (Figs. 22 to 26) of the handle 212 is partly wrapped around the first handle part 214 (see below) and is separable from the first part 214 by sliding the part 216 along the part 214 towards and off the front end 226 of the latter.
  • an enlargement 228 at the rear end of the first part 214 abuts the rear end 230 of the second part 216.
  • the handle part 216 is formed of two pieces, namely, a plastics piece 232 and a sheet metal, lid forming, piece 234.
  • the plastics piece 232 has a back wall element 236, two side wall elements 237, 238 and two front wall elements 239, 240 integrally joined together. Front and rear edges 242, 244 of the plastics piece 232 are sloped, relative to the longitudinal axis of the knife 210.
  • the metal piece 234 has a curved rear edge 246 parallel to the edge 244 and is fixed by fitting front and side edges 248, 250, 252 of metal piece 234 in the plastics piece 232, as shown in Fig.
  • the metal piece 234 has a slot 256 formed in its curved rear edge 246 and the slot 256 leads into the compartment 254. The metal piece 234 can be removed for emptying the compartment 254.
  • handle part 214 When handle parts 214, 216 are assembled together, the handle part 214 is embraced between the metal piece 234 and the inside surface 258 of back wall element 236, on the one hand, and the two front wall elements 239, 240 on the other hand, the latter leaving space between them for the movement of the slider 222 along the handle 212.
  • a used end-piece 260 of the blade 220 can be broken-off by introduction of the end-piece 260 into the slot 256 followed by manipulation of the first and second handle parts 214, 216 to snap-off the end-piece 260
  • the broken-off end-piece 260 falls into the compartment 254.
  • handle parts 214, 216 are assembled together, the slot 256 is covered by the enlargement 228 of handle part 214.
  • the sheet metal piece 234 could be replaced by a diecast piece (not shown) or a molded plastics piece (not shown).
  • a snap-off blade knife 310 comprises a handle 312 made of two parts 314, 316 which assemble together for normal use of the knife.
  • the handle part 314 (see Figs. 35 to 40) includes guide means 318 for guiding a snap-off blade 320 and for guiding a slider 322 (Figs. 35, 40) for selective extension and retraction of the blade 320.
  • Handle part 314 is formed with conventional teeth 324 for engagement by the slider 322 to hold the slider 322 in any desired position along the handle 312.
  • the second part 316 (Figs. 40 to 45) of the handle 312 is separable from the first part 314.
  • the handle part 316 is formed with a compartment 326 (Fig. 41) for containment of broken-off, used, blade pieces, and is also formed with a slot 330, leading into the compartment 326, such that a used end-piece 328 of the blade 320 can be broken-off by introduction of the end-piece 328 into the slot 330 followed by manipulation of the first and second handle parts 314, 316 to snap-off the end-piece 328.
  • the second part 316 of the handle 312 is partly wrapped around the first handle part 314 (similar to the second embodiment, see above) and is separable from the first part 314 by sliding the part 316 along the part 314 towards and off the front end 326 of the latter.
  • an enlargement 358 at the rear end of the first part 314 abuts the rear end 331 of the second part 316.
  • the handle part 316 is formed of two pieces, namely, a plastics piece 332 and a metal piece 334.
  • the plastics piece 332 has a back wall element 336, an intermediate wall element 337, two side wall elements 338, 339 and two front wall elements 340, 341 integrally joined together. Front and rear edges 342, 344 of the plastics piece 332 are sloped, relative to the longitudinal axis of the knife 310.
  • the metal piece 334 has a rear lip 346, parallel to the edge 344, and two mutually parallel side lips 348, 350.
  • the rear lip 346 fits under a curved rear lip 352 of plastics piece 332, whilst the side lips 348, 350 are seated in side recesses 354, 356 of the compartment 326 which is formed between the back and intermediate wall elements 336, 337 of plastics piece 332.
  • a wall element 360 of the metal piece 334 lies against the inside surface of the back wall element 336, within the compartment 326.
  • a depression 362 in the rear lip 346 of metal piece 334 forms the slot 330 leading into the compartment 326.
  • the metal piece can be removed for emptying the compartment 326.
  • handle part 314 When handle parts 314, 316 are assembled together, the handle part 314 is embraced between the intermediate wall element 337, on the one hand, and the two front wall elements 340, 341 on the other hand, the latter leaving space between them for the movement of the slider 322 along the handle 312.
  • a used end-piece 328 of the blade 320 can be broken-off by introduction of the end-piece 328 into the slot 330 followed by manipulation of the first and second handle parts 314, 316 to snap-off the end-piece 328 The broken-off end-piece 328 falls into the compartment 326.
  • handle parts 314, 316 are assembled together, the slot 330 is covered by the enlargement 358 of handle part 314.
  • the sheet metal piece 334 could be replaced by a diecast piece (not shown) or a molded plastics piece (not shown).

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
EP90304342A 1989-05-30 1990-04-23 Couteaux à lame cassable Withdrawn EP0400800A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8912365 1989-05-30
GB8912365A GB2232371B (en) 1989-05-30 1989-05-30 Snap-off blade knives

Publications (1)

Publication Number Publication Date
EP0400800A1 true EP0400800A1 (fr) 1990-12-05

Family

ID=10657565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90304342A Withdrawn EP0400800A1 (fr) 1989-05-30 1990-04-23 Couteaux à lame cassable

Country Status (2)

Country Link
EP (1) EP0400800A1 (fr)
GB (1) GB2232371B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666269A1 (fr) * 1990-08-29 1992-03-06 Nt Inc Agrafe de cutter a lame retractable.
EP0707923A1 (fr) * 1994-10-07 1996-04-24 MARTOR-ARGENTAX E.H. Beermann KG Couteau, notamment couteau d'ébavurage de pièces en matière plastique
WO1999052690A1 (fr) * 1998-04-09 1999-10-21 Mary Kay Allen Ensemble etui a lame
US6364182B1 (en) 1998-04-09 2002-04-02 Mary Kay Hansen Holster assembly with disposable blade well
EP2252438A1 (fr) * 2008-01-30 2010-11-24 American Safety Razor Company Couteau escamotable par bouton-pression
EP2153948A3 (fr) * 2008-08-15 2011-01-26 The Stanley Works Couteau
WO2017188984A1 (fr) * 2016-04-29 2017-11-02 JR. Harry S. BILLADO Couteau universel comprenant un guide lame pour séparer des segments de lame détachables d'une lame tout usage à points multiples
US20210146557A1 (en) * 2019-11-18 2021-05-20 Stanley Black & Decker, Inc. Knife with integrated blade snapper

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9909317D0 (en) * 1999-04-23 1999-06-16 Dymark Limited Cutting tool
US7509742B2 (en) 2002-11-19 2009-03-31 Earl & Kimberly Votolato, Trustees Of The Votolato Living Trust Safety cutting apparatus
US7774942B2 (en) 2006-10-09 2010-08-17 Pacific Handy Cutter, Inc. Utility knife
WO2018053796A1 (fr) * 2016-09-23 2018-03-29 杭州巨星工具有限公司 Couteau universel doté de doubles lames

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1575285A (en) * 1978-02-13 1980-09-17 Nippon Tenshashi Kk Knives
DE8521402U1 (de) * 1985-07-25 1986-01-16 Grundstücksgesellschaft Edding & Co (GmbH & Co KG), 2070 Ahrensburg Schneidwerkzeug, insbesondere Papiermesser
EP0242035A1 (fr) * 1986-04-14 1987-10-21 NUFFIELD NURSING HOMES TRUST trading as NUFFIELD HOSPITALS Boîte jetable pour instrument médicaux tranchants

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1575285A (en) * 1978-02-13 1980-09-17 Nippon Tenshashi Kk Knives
DE8521402U1 (de) * 1985-07-25 1986-01-16 Grundstücksgesellschaft Edding & Co (GmbH & Co KG), 2070 Ahrensburg Schneidwerkzeug, insbesondere Papiermesser
EP0242035A1 (fr) * 1986-04-14 1987-10-21 NUFFIELD NURSING HOMES TRUST trading as NUFFIELD HOSPITALS Boîte jetable pour instrument médicaux tranchants

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666269A1 (fr) * 1990-08-29 1992-03-06 Nt Inc Agrafe de cutter a lame retractable.
EP0707923A1 (fr) * 1994-10-07 1996-04-24 MARTOR-ARGENTAX E.H. Beermann KG Couteau, notamment couteau d'ébavurage de pièces en matière plastique
US5598634A (en) * 1994-10-07 1997-02-04 Martor-Argentax E.H. Beermann Kg Deburring knife with adjustable handle
WO1999052690A1 (fr) * 1998-04-09 1999-10-21 Mary Kay Allen Ensemble etui a lame
US6105838A (en) * 1998-04-09 2000-08-22 Hansen; Mary Kay Holster and blade well
US6364182B1 (en) 1998-04-09 2002-04-02 Mary Kay Hansen Holster assembly with disposable blade well
EP2252438A1 (fr) * 2008-01-30 2010-11-24 American Safety Razor Company Couteau escamotable par bouton-pression
EP2252438A4 (fr) * 2008-01-30 2011-03-30 American Safety Razor Couteau escamotable par bouton-pression
EP2153948A3 (fr) * 2008-08-15 2011-01-26 The Stanley Works Couteau
US8567070B2 (en) 2008-08-15 2013-10-29 Stanley Black & Decker, Inc. Utility knife with blade snapper
WO2017188984A1 (fr) * 2016-04-29 2017-11-02 JR. Harry S. BILLADO Couteau universel comprenant un guide lame pour séparer des segments de lame détachables d'une lame tout usage à points multiples
US20210146557A1 (en) * 2019-11-18 2021-05-20 Stanley Black & Decker, Inc. Knife with integrated blade snapper
US11198228B2 (en) * 2019-11-18 2021-12-14 Stanley Black & Decker, Inc. Knife with integrated blade snapper
US20220055234A1 (en) * 2019-11-18 2022-02-24 Stanley Black & Decker, Inc. Knife with integrated blade snapper
US11772288B2 (en) * 2019-11-18 2023-10-03 Stanley Black & Decker, Inc. Knife with integrated blade snapper

Also Published As

Publication number Publication date
GB2232371B (en) 1993-03-10
GB2232371A (en) 1990-12-12
GB8912365D0 (en) 1989-07-12

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