EP1340599A1 - Couteau - Google Patents

Couteau Download PDF

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Publication number
EP1340599A1
EP1340599A1 EP02028369A EP02028369A EP1340599A1 EP 1340599 A1 EP1340599 A1 EP 1340599A1 EP 02028369 A EP02028369 A EP 02028369A EP 02028369 A EP02028369 A EP 02028369A EP 1340599 A1 EP1340599 A1 EP 1340599A1
Authority
EP
European Patent Office
Prior art keywords
knife
blade carrier
blade
housing
movement
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.)
Granted
Application number
EP02028369A
Other languages
German (de)
English (en)
Other versions
EP1340599B1 (fr
Inventor
Harald Prof. Berns
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.)
Martor KG
Original Assignee
Martor Argentax EH Beermann KG
Martor KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27618815&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1340599(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Martor Argentax EH Beermann KG, Martor KG filed Critical Martor Argentax EH Beermann KG
Publication of EP1340599A1 publication Critical patent/EP1340599A1/fr
Application granted granted Critical
Publication of EP1340599B1 publication Critical patent/EP1340599B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B26B5/003—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use comprising retraction means for the blade or the blade holder

Definitions

  • the invention relates to a knife according to the preamble of claim 1.
  • a knife is from DE 197 23 279 C1 known.
  • the known knife allows the advantage that during the cutting process between the knife blade and the material to be cut cutting reaction force occurring a pulling force component contains the additional in the extension direction of the blade carrier Relative movement causes, which in turn causes the movement clutch between the operating part for the blade carrier and the blade carrier is disengaged.
  • the knife blade holder returns Blade holder immediately upon completion of the cutting work in his Protection position within the knife housing back, namely regardless of whether the actuator for the blade carrier is manually held in its extension direction or not.
  • the pulling part of the cutting reaction force which is the additional relative movement between the blade carrier and Knife housing caused by the angle of inclination of the knife edge dependent on the material to be cut.
  • the pulling proportion of the cutting reaction force relatively high, with larger ones It is smaller at angles and at an angle of 90 °, if so
  • the cutting reaction force on the blade edge is vertical Proportion equal to zero.
  • the pulling part of the cutting reaction force is always so large that the blade carrier is pulled out of the knife housing and so that the security mechanism is triggered, i.e. the motion clutch between the operating part for the blade carrier and the Blade carrier is lifted.
  • the invention is based on the object, the known To further develop knives so that the triggering of the safety mechanism, i.e. a decoupling between the actuating part for the blade carrier and the blade carrier is independent from the angle of inclination between the knife blade and the material to be cut.
  • the front area of the blade holder receiving the knife blade together with the knife housing a motion converter forms, which initiates the additional relative movement, by acting vertically on the cutting edge of the knife blade Compressive force within a between blade carrier and knife housing existing cross game a movement component of the Blade carrier perpendicular to the cutting edge, connected with a movement component in the direction of extension of the blade carrier.
  • Knives known from DE 197 23 279 C1 provide additional security because the security mechanism is triggered when the Cutting reaction force is in the range of the pure pressure force, if so the cutting edge of the knife blade runs perpendicular to the material to be cut.
  • the trigger is accordingly the additional relative movement required by the safety mechanism regardless of the angle of inclination between the cutting edge of the Knife blade and the material to be cut.
  • a knife 10 has a knife housing 11, which is made of an upper housing shell, not shown, and a lower one Housing shell 13 is composed. Both housing shells point towards each other with their hollow sides and are not shown in detail in FIG conveniently attached to each other (e.g. detachable), for example by screwing or by clipping.
  • the one partially visible main surface (broad surface) of the knife blade 14 carries the reference number 47.
  • the blade carrier 15 has in the area of the rear handle extension 16 of the knife housing 11 with a guide extension 17 a guide lug 18 on the straight inner surface 19 of the knife housing 11 is guided. On his two The long side of the guide extension 17 forms the knife housing 11 each have a longitudinal recess 20, 21.
  • the blade carrier 15 Approximately where the guide extension 17 adjoins the front area of the blade carrier 15 connects, the blade carrier 15 a fastening point 22 for the front end 23 of a tension spring 24. The rear end 25 of the tension spring 24 is at an attachment point formed 26 of the knife housing 11 attached.
  • the blade bearer 15 is partially from one to an actuating handle 42 subordinate actuating part 27, which is a separate Component represents.
  • the actuating part 27 is independent of the blade carrier 15 translationally movable in a straight line straight line L shown in dash-dot lines, which also with the Center axis M shown in dash-dotted lines forms an angle ⁇ .
  • the actuating part 27 is in the exit direction the blade carrier 15 in direction a and in the direction of entry Blade carrier 15 movable in the direction e.
  • the guide pins 28 protrude into guide grooves 30, 31 into it, which extend in a straight line and into the bottom 29 of the lower housing shell 13 are embedded.
  • the two longitudinal axes LN of the two guide grooves 30, 31 are M with respect to the central axis also inclined at the angle ⁇ .
  • the actuating part 27 has a on one long side Blade carrier 15 on its narrow side H overlapping neck 32, which is shown in longitudinal section.
  • the approach 32 forms at its the Narrow side H of the blade carrier 15 facing inside K primary coupling element P, while the narrow side H of the blade support 15 has a secondary coupling element S.
  • the secondary coupling part S consists of a recess on the narrow side H of the blade carrier 15.
  • the opening 36 of the recess points backwards in the direction of retreat z. So that the himself straight extending buckling bar 34 in the unloaded state with engage its free end in the undercut recess can, the buckling rod 34 in the clamping point 33 is a little towards Narrow side H of the blade carrier 15 arranged inclined.
  • the operating part 27 has one Eyelet 37 in which the front end 35 of a tension spring 38 is hooked is.
  • the rear end 39 of the tension spring 38 is at one Pin 40 of the lower housing shell 13 of the knife housing 11 attached.
  • the knife 10 shown functions as follows:
  • the actuating part 27 is in the manner described above its guide pin 28 in the housing-side straight guide grooves 30, 31 at an angle ⁇ to the central axis M.
  • the Actuating part 27 is by means of in the longitudinal recess 21 of the Knife housing 11 arranged tension spring 38 in its rear Starting position A held.
  • the manual operating force holds the operating part 27 still in the position shown in Fig. 2.
  • the front of the Knife blade 14 is located on the rear in accordance with path R. behind the front edge 49 of the knife housing 11.
  • Cut 48 of the knife blade 14 onto the material to be cut which is in Fig. 4 is designated 45, placed or on a cutting edge is applied, causes the cutting edge 48 of the knife blade 14 orthogonally loading pressure force D within a between blade carrier 15 and knife housing 11 existing transverse play Q a movement component perpendicular to the cutting edge 48, which has a movement component in the extension direction x of the blade carrier 15.
  • the sliding plane GE slides along the inclined plane the sliding projection GV transversely upwards and at the same time in the direction of extension x forward. The consequence of this is that the coupling elements S and P are disengaged.
  • the cutting edge 48 of the knife blade 14 penetrates into the material to be cut 45, the cutting reaction force causes one additional extension path W of the blade carrier 15 in the extension direction x forward. 4 also acts as a matter of course the pressure force D across the cutting edge 48 on the knife blade 14.
  • FIG. 2A is an alternative, closely based on FIG. 2 Embodiment shown, according to which the sliding plane GE component a slotted slot formed in the blade carrier 15 KS is, while compared to Fig. 2, the sliding projection GV through replaced a link pin KZ molded onto the knife housing 11 is. Otherwise, the function of the safety knife shown in Fig. 2A 10 identical to that shown in Figs. 1-4 Safety knife 10.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
EP02028369A 2002-02-27 2002-12-18 Couteau Expired - Lifetime EP1340599B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10208345A DE10208345C1 (de) 2002-02-27 2002-02-27 Messer
DE10208345 2002-02-27

Publications (2)

Publication Number Publication Date
EP1340599A1 true EP1340599A1 (fr) 2003-09-03
EP1340599B1 EP1340599B1 (fr) 2004-11-17

Family

ID=27618815

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02028369A Expired - Lifetime EP1340599B1 (fr) 2002-02-27 2002-12-18 Couteau

Country Status (6)

Country Link
US (1) US6785966B2 (fr)
EP (1) EP1340599B1 (fr)
CN (1) CN100450734C (fr)
DE (1) DE10208345C1 (fr)
ES (1) ES2231641T3 (fr)
HK (1) HK1055575A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1674218A1 (fr) * 2004-12-22 2006-06-28 Martor Kg Couteau
EP1674219A1 (fr) * 2004-12-22 2006-06-28 Martor Kg Couteau
EP1946897A1 (fr) 2007-01-19 2008-07-23 Mure et Peyrot Couteau à lame rétractable automatiquement

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060130338A1 (en) * 2004-12-17 2006-06-22 Dzubak Donald J Disposable box cutter
US7194809B2 (en) * 2005-04-18 2007-03-27 Patents Holding Company Quick release blade and knife
US8220160B2 (en) * 2005-09-16 2012-07-17 Adco Industries-Technologies, L.P. Box cutter with grip-actuated blade extension
US7316070B2 (en) * 2005-11-15 2008-01-08 Irwin Industrial Tool Company Self-retracting utility knife
KR101153618B1 (ko) * 2005-12-01 2012-06-18 미쓰보시 다이야몬도 고교 가부시키가이샤 팁홀더
US20070157765A1 (en) * 2006-01-09 2007-07-12 Gabe Neiser Package opener
JP4851242B2 (ja) * 2006-06-06 2012-01-11 オルファ株式会社 セーフティカッターナイフ
US7774942B2 (en) 2006-10-09 2010-08-17 Pacific Handy Cutter, Inc. Utility knife
EP1982802B1 (fr) 2007-04-16 2011-06-29 Adco Industries, a subsidiary of Dallco Marketing, Inc. Découpe d'un matériau rigide et semi-rigide
US8006389B2 (en) 2007-05-21 2011-08-30 Pacific Handy Cutter, Inc. Pocket safety cutter
DE102007052060A1 (de) * 2007-10-30 2009-05-07 Martor Kg Messer
DE102008019441A1 (de) * 2008-04-17 2009-10-22 Martor Kg Messer
US9840013B2 (en) 2008-04-29 2017-12-12 Pacific Handy Cutter, Inc. Safety cutter with blade change/storage mechanism
US8201336B2 (en) 2008-05-02 2012-06-19 Olympia Tools International, Inc. Retractable utility knife
US20090277016A1 (en) * 2008-05-07 2009-11-12 Yuewei Wu Utility knife with an auto-retractable blade
JP5309360B2 (ja) * 2008-07-31 2013-10-09 三菱電機株式会社 半導体装置およびその製造方法
US8695221B2 (en) 2008-08-21 2014-04-15 Wen Hao Utility knife with extended travel carriage
US8056241B2 (en) * 2008-10-13 2011-11-15 ADCO Industries—Technologies, L.P. Utility cutter
US8635781B2 (en) * 2009-02-19 2014-01-28 Liqui-Box Corporation Dual-blade film-cutting device
US8375588B2 (en) * 2009-04-27 2013-02-19 Allway Tools, Inc. Automatically retracting safety carton cutter
US8307556B2 (en) * 2009-06-19 2012-11-13 ADCO Industries—Technologies, L.P. Utility cutter
US8776380B1 (en) * 2011-04-25 2014-07-15 Elwood Dean Quimby Utility knife with retractable blade
US8732956B2 (en) 2011-06-15 2014-05-27 Aaron Paul McGushion Safety locking mechanism for a utility knife
US8769826B2 (en) * 2012-07-11 2014-07-08 Yuewei Wu Cutting device
US8782909B1 (en) 2013-02-12 2014-07-22 ADCO Industries—Technologies, L.P. Utility cutter
US10300615B2 (en) 2016-04-06 2019-05-28 Earl Votolato Utility knife with improved safety features
US11097434B2 (en) * 2017-12-21 2021-08-24 Mark Gordon Hooper Utility knife
US11027440B2 (en) * 2018-10-17 2021-06-08 Erosion Runner, L.P. Self-retracting knife with replaceable blade
US10589436B1 (en) * 2019-07-09 2020-03-17 Toughbuilt Industries, Inc. Single-action convertible utility knife and scrapper
US11919179B2 (en) 2020-03-31 2024-03-05 Aob Products Company Out-the-front knife

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315495A1 (de) * 1993-05-10 1994-11-17 Dennis Lohrengel Sicherheitsmesser
DE19723279C1 (de) * 1997-06-04 1998-04-23 Beermann Kg Martor Argentax Messer
EP1177865A1 (fr) * 2000-06-27 2002-02-06 Mure & Peyrot Cutter à lame rétractable automatiquement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999290A (en) * 1976-03-15 1976-12-28 Wood Jess W Safety knife
CN1010198B (zh) * 1986-07-11 1990-10-31 雪莉学院 改进的刀片
DE19507272C1 (de) * 1995-03-03 1995-09-28 Beermann Kg Martor Argentax Kartonmesser
US5813121A (en) * 1996-06-17 1998-09-29 Allway Tools, Inc. Automatically retractable utility knife
CN2379259Y (zh) * 1999-03-13 2000-05-24 谭攸强 一种带锁定结构的刀具

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315495A1 (de) * 1993-05-10 1994-11-17 Dennis Lohrengel Sicherheitsmesser
DE19723279C1 (de) * 1997-06-04 1998-04-23 Beermann Kg Martor Argentax Messer
EP1177865A1 (fr) * 2000-06-27 2002-02-06 Mure & Peyrot Cutter à lame rétractable automatiquement

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1674218A1 (fr) * 2004-12-22 2006-06-28 Martor Kg Couteau
EP1674219A1 (fr) * 2004-12-22 2006-06-28 Martor Kg Couteau
CN100515696C (zh) * 2004-12-22 2009-07-22 玛托两合公司 刀具
CN100526028C (zh) * 2004-12-22 2009-08-12 玛托两合公司 刀具
EP1946897A1 (fr) 2007-01-19 2008-07-23 Mure et Peyrot Couteau à lame rétractable automatiquement
FR2911532A1 (fr) * 2007-01-19 2008-07-25 Mure & Peyrot Sarl Couteau a lame retractable automatiquement

Also Published As

Publication number Publication date
HK1055575A1 (en) 2004-01-16
ES2231641T3 (es) 2005-05-16
CN100450734C (zh) 2009-01-14
US6785966B2 (en) 2004-09-07
US20030159290A1 (en) 2003-08-28
CN1440858A (zh) 2003-09-10
EP1340599B1 (fr) 2004-11-17
DE10208345C1 (de) 2003-08-21

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