EP0963820B1 - Couteau - Google Patents

Couteau Download PDF

Info

Publication number
EP0963820B1
EP0963820B1 EP99109978A EP99109978A EP0963820B1 EP 0963820 B1 EP0963820 B1 EP 0963820B1 EP 99109978 A EP99109978 A EP 99109978A EP 99109978 A EP99109978 A EP 99109978A EP 0963820 B1 EP0963820 B1 EP 0963820B1
Authority
EP
European Patent Office
Prior art keywords
knife
handle
pin
bent
blade
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.)
Expired - Lifetime
Application number
EP99109978A
Other languages
German (de)
English (en)
Other versions
EP0963820A1 (fr
Inventor
Harald Professor 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
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 Argentax EH Beermann KG filed Critical Martor Argentax EH Beermann KG
Publication of EP0963820A1 publication Critical patent/EP0963820A1/fr
Application granted granted Critical
Publication of EP0963820B1 publication Critical patent/EP0963820B1/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
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/02—Guards or sheaths for knives
    • 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 accordingly the preamble of claim 1.
  • Such a knife is known according to the DE 31 16 354 A1, which serves as protection against injuries one along the edge of a knife blade extending protective pin which in one Grip body-side sliding guide space parallel to its longitudinal central axis is translationally slidable held and against a spring return force can be inserted into the handle body.
  • the well-known knife is primarily related to be used with a rectangular blade, especially this is not sharpened on its short face is.
  • the known knife is in particular less inexpensive to use as a sack opening knife because to open a sack, especially when it is out strong plastic film, made of strong plastic fabric, made of paper-plastic composite, made of jute fabric, from multi-ply paper or from strong paper there is a hole in the sack must be followed by a drawing cutting movement to be able to perform.
  • a sack opening knife there is a rectangular blade Although feasible, a trapezoidal blade would be better or the like., Which has a tip, and the therefore permitting the bag material to be punctured.
  • the knife according to DE 31 16 354 A1 is also therefore not optimal as a sack opening knife, because the free end of the spring pin when piercing and in the drawing-cutting movement following the piercing can easily get caught in the bag material.
  • DE-GM 18 99 717 is a knife with one enclosing the front area of the handle body Protective cap known against spring return force can be pushed back to release the knife blade.
  • the protective cap of this known knife is however less suitable if the knife comes into contact with pressure back away from the surface of the bag. Rather needs therefor one to be operated during the cutting work Handle (see DE-GM 18 99 717 item 16).
  • Swiveling protective caps with a cross section approximately U-shaped shelter e.g. about according to DE-AS 11 21 972 are less than pocket knives suitable because such knives practically do not pierce of the bag material orthogonal to the bag surface allow because the pivoting protective cap does not necessarily backs away.
  • Such knives require rather when placing the knife on the material to be cut an acute angle between the material to be cut and the Longitudinal axis of the knife.
  • a knife according to US-A-43 93 587 is a carrying a knife blade at the front at its free end pin-shaped knife holder against spring return force from a sheath-like hollow shaft in the its cutting position can be extended. Apart from this, that the cutting function in this known knife is not observed, obstructs one at an angle Free end of the hollow shaft arranged skid also puncturing the bag material orthogonally to the bag surface.
  • Double protection bar is made of elastic material, in case of pressure contact with the material to be cut, releasing the knife blade along the knife blade pushed away.
  • This well-known knife which no knocking in of the knife blade orthogonal to the bag surface allowed, must be applied to the material to be cut be that the handle body longitudinal axis with the Cutting plane forms an acute angle.
  • US-A-45 69 133 is a knife known, the knife blade rigidly arranged in the handle body one on both sides of the cutting edge extending rigid bracket.
  • This rigid one Temple is only part of a different Cutting depth limitation axially lockable, exercises thus no protective function (cf. US-A-45 69 133 Fig. 14).
  • the invention is based on the subject DE 31 16 354 A1, the task, a particular knife suitable for opening sacks create which, similar to the well-known knife, provides adequate protection against injury.
  • a protective pin according to the DE 31 16 354 Al is a safety bar, namely a safety bar arrangement in the form of a double safety bar, provided which is on both sides one next to the cutting edge of the knife blade Has pin area.
  • both pen areas arranged at a parallel distance from each other Ends, the leading ends, over the knife blade tip away on both sides at a distance from the end face the knife blade with a point at the front are bent up, the knife blade preferably forms a trapezoidal blade.
  • both pin areas itself both at the side distance and below at a distance from the cutting edge, at the same time on the underside protection against accidental contact with the cutting edge.
  • the invention is hampered Protection against contact the visual perceptibility of the Cutting process practically not.
  • the cutting work in particular the puncturing of the sack material through which new formation of a safety bar is not hindered, because the safety bar fits with the bent up Ends, the leading ends, on the sack material can support, and sufficiently large area can support while pushing yourself of the handle body, the two parallel to each other straight pin areas of the safety bar push into the handle body against the spring return force can and the knife blade tip through the space between the bent ends (Leaders) of the pin areas of the safety bar can push through.
  • Knife through the parallel extension of the two Pin areas advantageously a corner guide of the knife along a cardboard edge.
  • the bent ends, the leading ends, the Safety bracket at one another at their free ends over, so that an increasing the stability of the bracket, approximately hairpin-shaped temple end is present.
  • Embodiment are the bent ends that Leaders, the safety bar, starting from the front area of the safety bar, additionally bent backwards while doing so preferably led into the knife housing.
  • This insertion can be done on the one hand a longitudinal channel open on one side or even more advantageously by means of a face of the knife handle open guide channel can be accomplished.
  • Each knife 10 has a handle body 11 and a knife blade 12 releasably fastened therein, the in the embodiments shown as a trapezoidal blade is trained and therefore a straightforward Cutting edge 13, one inclined to the handle longitudinal axis y extending straight end face 14 and in front a knife blade tip 15 has.
  • a safety bar 16 has two in parallel spacing pin regions 17 arranged relative to one another, whose approximately piston-like inner ends 18 in a guide channel 19 in the push-out direction x and in the direction of insertion z translationally along the Longitudinal central axes L of the pin regions 17 are movable are.
  • each pin area 17 is each with an approximately part-circular arc 21 two leading ends 22 connected and at a distance in front of the knife blade tip 15 and the end face 14 of the knife blade 12 pulled around.
  • the free ends 23 of the leading ends 22 are connected to one another via a strap web 24 connected.
  • FIGS. 4-6 as well as 4A differs in that in FIGS 1-3 and 1A shown embodiment only in that the two leading ends 22 each a rearward directed temple end 25 connects, with both temple ends 25 in turn a strap web 24 are connected to each other.
  • Temple ends 25 and temple web 24 are in a guide channel 26 of the handle body 11 along the sliding directions x and z translationally displaceable added.
  • Knife 10 happens in the simplest version in such a way that the knife 10 with the respective leading end 22 is placed on the bag surface E, with the sack material between the two Leaders 22 is streamlined and leveled, such as in particular is conceivable on the basis of FIGS. 2 and 6.
  • Figs. 4-6 and 4A can have an actuation lock, which can be operated by means of a key 27.
  • the knife 10 can alternatively with two different acting Actuation locks must be equipped.
  • the first variant can consist in that Depressing button 27 unlocks the Safety bracket 16 in its advanced position (Fig. 4) so that the safety bar 16 at button 27 pushed back in the direction of z can be.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Credit Cards Or The Like (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Claims (6)

  1. Couteau (10) à tige de protection rigide, s'étendant le long d'un tranchant (13) d'une lame de couteau (12), en particulier interchangeable, constituant à l'avant, à ses extrémités libres, une pointe de lame (15), la tige de protection étant maintenue avec une mobilité de coulissement en translation, parallèlement à son axe longitudinal (L), dans un espace de guidage coulissant (19) d'un corps de manche (11), et étant insérable dans le corps de manche (12), à l'encontre d'une force de rappel élastique (F), caractérisé en ce que deux tiges de protection constituent chacune une zone de tige (17) d'un agencement à arceau de sécurité (16), en ce que les deux zones de tige (17) s'étendent à distance l'une de l'autre et parallèlement et des deux côtés du tranchant (13) de la lame de couteau (12), et en ce que les extrémités libres des deux zones de tige (17) constituent des extrémités de guidage (22) qui sont relevées par un coudage, au-dessus de la pointe (15) de la lame de couteau, des deux côtés à distance de la face frontale (14) de la lame de couteau (12).
  2. Couteau selon la revendication 1, caractérisé en ce que la lame de couteau (12) constitue une lame trapézoïdale.
  3. Couteau selon la revendication 1 ou la revendication 2, caractérisé en ce que les deux extrémités de guidage (22), relevées par un coudage, de l'agencement à arceau de sécurité (16) se transforment l'une en l'autre à leurs extrémités libres (23), de manière qu'une extrémité d'arceau, à peu près en forme d'épingle à cheveux, augmentant la stabilité de l'agencement à arceau de sécurité (16), soit constituée en (24).
  4. Couteau selon l'une des revendications 1 à 3, caractérisé en ce que les extrémités de guidage (22) relevées par un coudage, en partant de la zone frontale (23) de l'agencement à arceau de sécurité (16), sont en plus rabattues vers l'arrière (en 25), par rapport au corps de manche (11).
  5. Couteau selon la revendication 4, caractérisé en ce que les extrémités (25), rabattues vers l'arrière, de l'agencement à arceau de sécurité (16) sont insérées dans le corps de manche (11).
  6. Couteau selon la revendication 5, caractérisé en ce que les extrémités (25), repliées vers l'arrière, de l'agencement à arceau de sécurité (16) sont logées dans une goulotte longitudinale ouverte vers l'extérieur, ou bien dans un canal de guidage (26) du corps de manche (11).
EP99109978A 1998-06-11 1999-05-21 Couteau Expired - Lifetime EP0963820B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19825941 1998-06-11
DE19825941 1998-06-11

Publications (2)

Publication Number Publication Date
EP0963820A1 EP0963820A1 (fr) 1999-12-15
EP0963820B1 true EP0963820B1 (fr) 2001-04-18

Family

ID=7870526

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99109972A Expired - Lifetime EP0963819B1 (fr) 1998-06-11 1999-05-21 Couteau avec au moins un dispositif protecteur
EP99109978A Expired - Lifetime EP0963820B1 (fr) 1998-06-11 1999-05-21 Couteau

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99109972A Expired - Lifetime EP0963819B1 (fr) 1998-06-11 1999-05-21 Couteau avec au moins un dispositif protecteur

Country Status (4)

Country Link
EP (2) EP0963819B1 (fr)
DE (6) DE29908858U1 (fr)
ES (2) ES2182431T3 (fr)
HK (1) HK1024661A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9905122D0 (en) * 1999-03-06 1999-04-28 Marshall Peter J Improvements in or relating to knives
GB9909317D0 (en) * 1999-04-23 1999-06-16 Dymark Limited Cutting tool
GB9910730D0 (en) * 1999-05-11 1999-07-07 Ireland William A Improvements in or relating to knives
GB2386857B (en) * 1999-05-11 2003-11-19 W A 1 Designs Ltd Improvements in or relating to knives
DE20200620U1 (de) 2002-01-15 2002-04-04 Meyer, Hartmut-Harald, 26160 Bad Zwischenahn Schneidvorrichtung für CD-Verpackungen
US7509742B2 (en) 2002-11-19 2009-03-31 Earl & Kimberly Votolato, Trustees Of The Votolato Living Trust Safety cutting apparatus
FR2893525B1 (fr) * 2005-11-23 2008-01-18 Cogema Couteau a lame retractile, utilisable notamment en milieu hostile
DE102005057213B3 (de) * 2005-11-29 2007-03-22 Martor Kg Messer
US7774942B2 (en) 2006-10-09 2010-08-17 Pacific Handy Cutter, Inc. Utility knife
DE102010034395A1 (de) * 2010-08-13 2012-02-16 Martor Kg Schneidwerkzeug
US8720068B2 (en) * 2012-01-19 2014-05-13 Ritesafety Products International, Llc Hand cutter with blade guard
CN103846958B (zh) * 2014-03-18 2015-12-09 诸暨中澳自动化设备有限公司 一种切断刀具的两自由度机械防护机构及其使用方法
DE102015104906B3 (de) * 2015-03-30 2016-08-04 Krampe Immobilien Gmbh & Co. Kg Kabelmesser mit zwei Klingen
DE102015107022B3 (de) * 2015-05-06 2016-09-22 Krampe Immobilien Gmbh & Co. Kg Klingenschutz für eine Hakenklinge eines Kabelmessers
FR3073771B1 (fr) * 2017-11-17 2022-07-08 Ladinvest Dispositif de securite pour les couteaux

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US142942A (en) 1873-09-16 Improvement in knives for trimming boot and shoe soles
DE1121972B (fr) 1962-01-11
US2743523A (en) 1955-06-27 1956-05-01 Honey Robert Carton opening knife
DE1899717U (de) 1964-04-21 1964-08-27 Gerhard Alarich Ern Messer.
DE2623490A1 (de) * 1976-05-26 1977-12-01 Beermann Kg Martor Argentax Schneidgeraet fuer karton, leder, teppichware o.dgl.
US4086698A (en) * 1977-02-28 1978-05-02 Macfield Texturing, Inc. Safety guard for the blade of carton openers
US4091537A (en) * 1977-04-26 1978-05-30 Stevenson Machine Shop Safety utility knife
US4393587A (en) 1981-04-23 1983-07-19 Kloosterman William A Spring shielded safety knife
DE3116354C2 (de) 1981-04-24 1987-01-29 Martor-Argentax E.H. Beermann Kg, 5650 Solingen Kartonmesser
DE8119855U1 (de) * 1981-07-08 1981-11-05 Schmidt Gmbh & Co Kg, 5830 Schwelm Mehrzweckmesser
US4569133A (en) * 1983-01-06 1986-02-11 Sharpoint, Inc. Depth limited cutter
FR2552006B1 (fr) 1983-09-16 1987-09-11 Preposreve Sarl Couteau a lame fixe et a protege-lame retractable
FR2572984B1 (fr) 1984-11-14 1987-09-11 Preposreve Couteau a lame fixe et protege-lame escamotable automatiquement.
GB2192358B (en) * 1986-07-08 1989-12-20 Shirley Inst The Knife
DE8912929U1 (de) * 1989-11-02 1989-12-28 Kahl, Joachim, 2391 Quern Industriemesser
US5330492A (en) * 1992-10-21 1994-07-19 Dlh Concepts, Inc. Safety scalpel
US5325594A (en) 1993-04-12 1994-07-05 Szafranski James P Hand tool for cutting insulation batts
DE69433489D1 (de) * 1993-10-06 2004-02-19 John B Mcadams Keratorefraktives system

Also Published As

Publication number Publication date
DE59902619D1 (de) 2002-10-17
DE19923181A1 (de) 1999-12-23
EP0963819B1 (fr) 2002-09-11
ES2182431T3 (es) 2003-03-01
DE19923179C2 (de) 2000-05-11
EP0963819A1 (fr) 1999-12-15
DE19923179A1 (de) 1999-12-23
EP0963820A1 (fr) 1999-12-15
HK1024660A1 (en) 2000-10-20
DE29908858U1 (de) 1999-08-12
DE29908856U1 (de) 1999-08-26
DE59900073D1 (de) 2001-05-23
DE19923181C2 (de) 2003-05-15
HK1024661A1 (en) 2003-05-06
ES2158712T3 (es) 2001-09-01

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