EP1484143A1 - Couteau - Google Patents

Couteau Download PDF

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Publication number
EP1484143A1
EP1484143A1 EP04011480A EP04011480A EP1484143A1 EP 1484143 A1 EP1484143 A1 EP 1484143A1 EP 04011480 A EP04011480 A EP 04011480A EP 04011480 A EP04011480 A EP 04011480A EP 1484143 A1 EP1484143 A1 EP 1484143A1
Authority
EP
European Patent Office
Prior art keywords
handle body
knife according
slide
web
rocker
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
EP04011480A
Other languages
German (de)
English (en)
Other versions
EP1484143B1 (fr
Inventor
Gudula Polei
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 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
Application filed by Martor KG filed Critical Martor KG
Publication of EP1484143A1 publication Critical patent/EP1484143A1/fr
Application granted granted Critical
Publication of EP1484143B1 publication Critical patent/EP1484143B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Definitions

  • the invention relates to a knife according to the preamble of Claim 1.
  • Such a knife which advantageously consists of only a few individual parts is known from EP 0 707 925 B1.
  • This knife forms a front grip area of the grip body together with the slide a clamping gap that can be adjusted by wedge surfaces, between which the interchangeable blade in the longitudinal direction only non-positively against longitudinal displacement is secured.
  • the front grip area forms a freely protruding one Clamping process with a trapezoidal cross-section, on which, with its rear End ahead, the slide is attached, which is an undercut Has trapezoidal cross-section clamping groove.
  • the clamping groove base and the latter facing the appendix base form between them the clamping gap.
  • clamping groove base and the clamping extension base on the one hand and both clamping groove side surfaces and both corresponding ones Clamping extension side surfaces, on the other hand, run parallel to one another.
  • the clamping extension and clamping groove taper to their front free Ends continuously in such a way that the clamping groove width and, corresponding also the width of the clamping extension, to the front free ends of the slide and continuously remove the clamping extension.
  • clamp bracket a about a bearing axis in Grip body has pivotable rocker, which with its first lever arm in Connection with a surface of the handle body facing this at the end pliers on the knife blade side for the interchangeable blade forms and the second lever arm at its end with two ramp surfaces is provided, which two counter ramp surfaces on the facing end area assigned to the slide
  • the clamp bracket is now from one to one Bearing in the body of the swivel rocker consists of the first lever arm in connection with a surface of the handle body facing this at the end of the knife blade, a pair of pliers for the interchangeable blade forms, due to this forceps-like infeed of the two clamping surfaces now also a form-fitting holder of the interchangeable blade thereby allowing one of the clamping surfaces with a projecting Knobs, a ridge, a bar or the like. And the opposite clamping surface for positive engagement with a corresponding return can be provided. This is the case with the above Technology not possible due to the parallel guidance of the clamping surfaces. Consequently can now the interchangeable blade both non-positively and positively between the clamping surfaces are held like pliers.
  • the slide Since the second lever arm continues at its end with two contact surfaces is provided, which two counter surfaces on the facing Are assigned to the end of the slide, the slide is now on the handle side End region of the handle body arranged and thus in relatively wider Distance from the knife blade, so that during a knife blade change even if a finger of the operating hand slips off Slider cuts due to the large distance to the interchangeable blade excluded are.
  • the knife compared to the State of the art also has the advantage of fewer individual parts, i.e. of only three Divide, on that required to clamp and loosen the knife blade are. These are the handle body, the rocker with its two lever arms and the Slide.
  • a locking bar which has been described elsewhere, is for limitation the knife-side displacement path of the slide is advantageous, however the latch for the function of the bracket pliers is not absolutely necessary.
  • the second Lever arm in the form of a fork, of which the upper fork tines on their Inside with the first ramp to close the clamp bracket and the lower fork tine on the inside with the second contact surface for Opening the clamp bracket is provided.
  • the first ramp area increases Wedge-shaped from the free end of the upper fork tine towards the bearing of the rocker on. This can be used in conjunction with one to be described A corresponding pliers pressure is generated on the slide counter surface become.
  • the second ramp is located at the end of the lower fork and consists of one towards the free end of the upper fork wedge-shaped rising surface. This can cause jamming when opening Pliers connection depending on the wedge-shaped rising surface quick or moderate opening of the clamping pliers.
  • the clamping force can be achieved both through the lever arm lengths and through the pitch angle of the first ramp surface and the corresponding one Counter run-up surface can be determined.
  • the slide becomes the handle-side end area of the handle body Moved there, the second ramp area reaches the end of the lower one Fork with the back of the sloping connecting web planted between the two stages, causing the seesaw to rotate clockwise pivoted about the bearing axis in the handle body and the knife blade out of it non-positive and positive clamping is released for replacement.
  • the slide in its Longitudinal movement advantageously limited by a bolt on the handle side End region is arranged in the handle body.
  • This bolt engages under its cranked end facing the rocker has a central web of the handle body and grips with its hook-shaped bent other end an end web of the handle body and is with a locking projection on a locking surface supported this end web.
  • the slide can only have one limited path in the direction of the handle-side end region of the handle body shifted and thus a disengagement of the second ramp surface the second counter ramp area are prevented.
  • this latch is not absolutely necessary.
  • the handle body of two with respect to one passing through the longitudinal central axis Longitudinal median plane mirror-symmetrical, convex on its longitudinal outer sides arched strips, cohesively connected by four webs are.
  • the first web with its inner surface one of the two clamping surfaces of the mounting pliers, the second web forms the pivot bearing of the rocker, the third Bridge the middle bridge and the fourth bridge the final bridge.
  • the latter two Bars serve to hold the latch.
  • the slider on the other hand is on its two long sides, each with a longitudinal guide groove provided, in which the guide rails of the handle body form-fitting intervention.
  • the slide projects above the adjacent surface of the handle body and is there with a non-slip Actuating handle provided, which is advantageous transversely to the slide adjustment direction has extending knobs. This will not only be a ergonomically handy knife with an ergonomically favorable operating handle created, but also a positive and positive Clamp holder of the knife blade ensured.
  • this knife also offers the user the advantage a tool-free assembly and disassembly of the three held in the handle body Parts, namely the rocker, the slide and the latch.
  • knife 10 has, in addition to that from FIG. 4 apparent knife blade 15 a total of four parts, namely a handle body 11, a rocker 12, a slide 13 and a latch 14.
  • the handle body 11 is composed of two with respect to one through the longitudinal section line II / II and the plane of symmetry running orthogonally through the plane of the drawing mirror-symmetrical, on their longitudinal outer sides 11a, 11b convex arched strips 16, 17 together by a total of four Crosspieces 18, 19, 20 and 21 (see FIG. 2) are connected to one another.
  • the individual bars 18 - 21, in their order from the knife blade side End region 22 to the handle-side end region 23 of the handle body 11 considered the following functions:
  • the first web 18 forms one of the two with its inner surface 18a Clamping surfaces of a holder pliers 26.
  • the second web 19 is the bearing axis for the rocker 12.
  • the third web 20 serves as a central web as well as the End web 21 for holding the latch 14.
  • the rocker 12 has two lever arms 24 and 25.
  • the first lever arm 24 forms in connection with its clamping surface 24a together with the Clamping surface 18a of the first web 18, the holding pliers 26 for the interchangeable blade 15. Since the two clamping surfaces 18a and 24a open like pliers, as soon as the rocker 12 is pivoted clockwise around the bearing axis 19, is now in addition to the non-positive also a positive holder Knife blade 15 possible. In the present case, this takes place in that the Clamping surface 18a of the first web 18 with a mounting projection 27 for the interchangeable blade 15 and the facing clamping surface 24a of the first lever arm 24 is provided with a corresponding recess 28, in which in the operating position of the bracket pliers 26 of the bracket projection 27 engages positively. For this reason, the interchangeable blade is 15 provided with a corresponding opening 15a in this area (see FIG. 4).
  • the second lever arm 25 has the shape of a fork, of which the upper fork tine 25a on its inside with the first contact surface 29 for Close the clamp bracket 18, 24 and the lower fork tine 25b on it Inside with the second ramp surface 30 to open the clamp bracket 18, 24 is provided. From this, the first ramp surface 29 rises from the free End of the upper fork tine 25a in the direction of the bearing 19 of the rocker 12 in a wedge shape while the second ramp surface 30 at the end of the lower fork 25b from one towards the free end of the upper fork tine 25a there is a wedge-shaped rising surface 30 (see in particular FIG. 2).
  • the slide 13 becomes longitudinally axial guided in the handle body 11 on guide rails 31, 32, which in corresponding Guide grooves 33, 34 (see FIG. 6) of the slide 13 engage.
  • From several knobs 35a running transversely to the slide displacement direction existing operating handle is designated 35.
  • the slide 13 At his the Rocker 12 facing end area is the slide 13 to form two Steps 36, 37 and an intermediate sloping connecting web 38 cranked.
  • the outer or surface 39 forms the first of these Step 36 the counter ramp 39 for the first ramp 29 on the inside the upper fork tine 25a.
  • This counter ramp 39 can both flat as well as wedge-shaped in the direction of the actuating handle 35 increase.
  • the rear of the connecting web 38 between the two stages 36 and 37 forms the counter ramp surface 40 for the second ramp surface 30 on the lower fork 25b.
  • the slide 13 is in the direction of the two arrows 41, 42 slidable within the handle body 11.
  • the counter ramp surface 40 runs along Sliding contact against the second contact surface 30 of the lower fork tine 25b second lever arm 25 of the rocker 12, whereby the rocker in the clockwise direction Arrow 43 is pivoted about the bearing 19. This will make the two Clamping surfaces 18a, 24a released so that the blade 15 (see FIG. 4) is removed and can be exchanged for a new one.
  • This bolt 14 is on the handle-side end region 23 in the handle body 11 detachably arranged.
  • the latch 14 engages with its Rocker 12 facing, cranked end 45 the central web 20 of the handle body 11 and engages with its hook-shaped bent other end 46 the end web 21 of the handle body 11.
  • it is bent at its End 46 provided with a locking projection 47, which corresponds to it Latching surface 48 of the end web 21 engages behind (see also Fig. 2).
  • the handle body 11 and the rocker 12 are advantageously made of one Light metal alloy and the slide 13 and the bolt 14 made of plastic manufactured. Of course, other material combinations are also possible.
  • the bore 49 in FIGS. 2 and 4 only serves to save material as well as the weight reduction of the rocker 12.
  • Knife 10 In addition to the advantages of a positive and positive fit Holding the knife blade 15 by means of the holder pliers 26, the special favorable ergonomic shape and the consisting of only a few parts Knife 10 also offers the advantage of a tool-free composition and disassembly.
  • the assembly of the knife is done in the following order performed:
  • the slide 13 is first with its rear End 50 ahead with its guide grooves 33, 34 between the guide rails 31, 32 inserted and up to the rear end of the end web 21st pushed back. Then the rocker 12 is used in such a way that the first lever arm 24 according to FIG. 2 from below into the space between inserted the first web 18 and the bearing 19 (arrow 44) and then in Is pivoted counterclockwise until the bearing 19 in the partially cylindrical bearing shell 51 of the rocker 12 engages. After that the slider 13 with its cranked end 36, 37, 38 in the space between pushed the two fork tines 25a and 25b.
  • the knife of the invention is in terms of its basic concept not limited to use as a deburring knife. Rather, it is Basic concept of the knife according to the invention can be solved for all fixed supported steel knife blades, especially spring steel knife blades. For example, it is conceivable that knives according to the invention are not so slim, as described above, but rather under Inclusion of all essential parts, so wide that even a doctor blade can be used, the cutting edge of which is transverse extends to the longitudinal axis of the handle body.
EP04011480A 2003-06-04 2004-05-14 Couteau Expired - Fee Related EP1484143B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10325214 2003-06-04
DE10325214A DE10325214A1 (de) 2003-06-04 2003-06-04 Messer

Publications (2)

Publication Number Publication Date
EP1484143A1 true EP1484143A1 (fr) 2004-12-08
EP1484143B1 EP1484143B1 (fr) 2006-05-31

Family

ID=33154539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04011480A Expired - Fee Related EP1484143B1 (fr) 2003-06-04 2004-05-14 Couteau

Country Status (5)

Country Link
US (1) US7028406B2 (fr)
EP (1) EP1484143B1 (fr)
AU (1) AU2004202480B2 (fr)
DE (2) DE10325214A1 (fr)
ES (1) ES2264066T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272638A1 (fr) * 2009-07-08 2011-01-12 Martor Kg Couteau

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005049411B3 (de) * 2005-10-13 2007-03-01 Martor Kg Messer
ES2368529T3 (es) 2007-04-16 2011-11-18 Adco Industries, A Subsidiary Of Dallco Marketing, Inc. Corte de material rígido y semirígido.
DE102007025887A1 (de) 2007-06-01 2008-12-04 Martor Kg Messerklinge
DE202007007844U1 (de) 2007-06-01 2008-10-09 Martor Kg Messerklinge
EP2249689A4 (fr) * 2008-01-30 2011-02-23 American Safety Razor Grattoir
US8464430B2 (en) * 2008-02-07 2013-06-18 Beaver-Visitec International (Us), Inc. Retractable safety knife
US8201336B2 (en) 2008-05-02 2012-06-19 Olympia Tools International, Inc. Retractable utility knife
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
US8307556B2 (en) * 2009-06-19 2012-11-13 ADCO Industries—Technologies, L.P. Utility cutter
US8413339B2 (en) * 2011-02-03 2013-04-09 Stanley Black & Decker, Inc. Quick change snap off knife
US8782909B1 (en) 2013-02-12 2014-07-22 ADCO Industries—Technologies, L.P. Utility cutter
WO2015187671A1 (fr) * 2014-06-02 2015-12-10 DUDLEY, Calvin Scalpel oscillant jetable à manche réutilisable et lame configurée pour scalpel
DE102014110745B4 (de) * 2014-07-29 2016-02-11 Mozart Ag Messer und Klinge
DE102015222081A1 (de) * 2015-11-10 2017-05-11 Volkswagen Aktiengesellschaft Zeiger und Anzeigevorrichtung zur Anzeige mindestens einer Zustandsgröße eines Fahrzeugs
US20190024391A1 (en) * 2017-07-21 2019-01-24 Chin-Chen Huang Painting Tool
EP3743252B1 (fr) * 2018-01-23 2024-02-28 Ranpak Corp. Procédé et ensemble lame de coupe à changement rapide

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802077A (en) * 1972-08-02 1974-04-09 M Averitt Tool holder
US4604805A (en) * 1983-12-14 1986-08-12 John F. Cuscovitch Holder for detachable blades
DE19749256A1 (de) * 1997-11-07 1999-05-12 Wolfcraft Gmbh Messergriff, insbesondere für Teppichmesser

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US931778A (en) * 1908-07-28 1909-08-24 Louis N Levinsohn Safety-razor.
FR2416097A1 (fr) * 1978-02-01 1979-08-31 Stanley Mabo Mecanisme de blocage et d'avance pour instrument a decouper
US4955138A (en) * 1989-01-13 1990-09-11 Warner Manufacturing Company Utility blade scraper
DE69000878T2 (de) * 1990-06-18 1993-07-08 Stanley Works Ltd Messer mit auswechselbarer klinge.
FR2665099B1 (fr) 1990-07-25 1995-05-05 Rougier Mur Sol Outil porte-lame.
DE4435818C1 (de) 1994-10-07 1995-04-06 Beermann Kg Martor Argentax Messer, insbesondere Entgratemesser für Kunststoffteile
DE4435807C1 (de) * 1994-10-07 1995-05-24 Beermann Kg Martor Argentax Messer mit Wechselklinge, wie Entgratemesser für Kunststoffteile od. dgl.
US5996231A (en) * 1997-08-06 1999-12-07 Hyde Tools Scraping tool with replaceable blade and controlled quick-release clamp
US6510612B1 (en) * 2001-07-11 2003-01-28 Marian Cybulski Knife
US6813833B2 (en) * 2002-01-16 2004-11-09 Nottingham-Spirk Design Associates, Inc. Utility knife
CA2369418C (fr) * 2002-01-24 2005-03-29 A. Richard Ltee Racloir a lame
US6971178B2 (en) * 2002-09-05 2005-12-06 The Stanley Works Replaceable blade knife

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802077A (en) * 1972-08-02 1974-04-09 M Averitt Tool holder
US4604805A (en) * 1983-12-14 1986-08-12 John F. Cuscovitch Holder for detachable blades
DE19749256A1 (de) * 1997-11-07 1999-05-12 Wolfcraft Gmbh Messergriff, insbesondere für Teppichmesser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2272638A1 (fr) * 2009-07-08 2011-01-12 Martor Kg Couteau

Also Published As

Publication number Publication date
ES2264066T3 (es) 2006-12-16
US20040250427A1 (en) 2004-12-16
DE10325214A1 (de) 2004-12-30
EP1484143B1 (fr) 2006-05-31
AU2004202480B2 (en) 2008-10-02
DE502004000646D1 (de) 2006-07-06
US7028406B2 (en) 2006-04-18
AU2004202480A1 (en) 2004-12-23

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