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EP1211031A1 - Cutter with one piece holder for fixing and releasing the blade by pressure - Google Patents

Cutter with one piece holder for fixing and releasing the blade by pressure Download PDF

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Publication number
EP1211031A1
EP1211031A1 EP20010450019 EP01450019A EP1211031A1 EP 1211031 A1 EP1211031 A1 EP 1211031A1 EP 20010450019 EP20010450019 EP 20010450019 EP 01450019 A EP01450019 A EP 01450019A EP 1211031 A1 EP1211031 A1 EP 1211031A1
Authority
EP
European Patent Office
Prior art keywords
blade
cutter
tongue
pressure
housing
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Withdrawn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
EP20010450019
Other languages
German (de)
French (fr)
Inventor
Jean-Claude Peyrot
Marc Michiels
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.)
Mure et Peyrot SAS
Original Assignee
Mure et Peyrot SAS
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 Mure et Peyrot SAS filed Critical Mure et Peyrot SAS
Publication of EP1211031A1 publication Critical patent/EP1211031A1/en
Withdrawn legal-status Critical Current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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection

Definitions

  • the present invention relates to a cutter with a monobloc blade holder, the blade can be fixed in place or released for a simple change pressure.
  • the object of the invention is to propose a blade holder structure simple, effective and requiring no disassembly for the installation or blade change.
  • the subject of the invention is a cutter with a monobloc blade holder with fixation-release of the blade by pressure, characterized in that said blade holder is made by molding a semi-rigid plastic material and comprises two substantially flat shells folded down opposite one of the other, connected by a thin bridge and defining between them a housing of receiving a blade open at least on one side, one of the parts having on its internal face a projection capable of penetrating a hole of the blade so as to hold it captive in said housing and being, at the neighborhood of the latter, deformable by pressure so, by leverage, to move said projection away from the opposite face of the other shell, thus allowing the free passage of the blade out of its housing.
  • said projection is formed in the vicinity of the free end of a tongue forming all or part of one of the two blade holder shells, said tongue being capable of tilting around a fulcrum provided on the second hull facing the central area of the tongue, when it is pressed on it, between said point support and the foot of the tongue, in the direction of said second shell.
  • Such a device is particularly simple and inexpensive to produce since it comprises a single molded part which, by simple deformation by pressure of one inch for example, allows the establishment or extraction of a conventional thin blade and by releasing said pressure, returns to normal position for using the cutter, the blade being correctly and firmly wedged and held captive in its housing by not leaving protrude outside than the fringe carrying the cutting edge.
  • the cutter shown in the drawings consists of a single piece in semi-rigid plastic injection molded comprising two shells 1a and 1b connected by a hinge constituted by two thin bridges 2. Au demoulding, the shells 1a, 1b are substantially in the same plane and side by side and are then folded back against each other, the articulation being made at right the connecting hinge 2, being kept in this position, as a bivalve, by any appropriate means (not shown) such as welding or clipping by pins and receiving holes.
  • the shells 1a, 1b thus folded back form a blade holder 1 receiving a conventional rectangular blade 3 of the type illustrated in FIG. 3.
  • This blade 3 has a cutting edge 4, a central oblong hole 5 and its other edge is encased in a metal cover 6.
  • the blade holder 1 has, opposite the axis of the hinge 2, an edge parallel 7 which extends beyond the fringe carrying the cutting edge 4 of the blade 3.
  • the blade 3 is held captive between the shells 1a, 1b, in a housing 8 defined in the area adjacent to the edge 7.
  • This housing 8 includes a part capable of accommodating the cover 6 of the blade, connected to the front edge 7 of the cutter by a slot 8a, delimited between the two shells 1a, 1b and of thickness very slightly greater than that of the blade 3.
  • the housing 8 and the slot 8a open on the two lateral sides of the cutter as can be seen in Figure 2, allowing you to thread the blade 3 laterally to the cutter, on one side or the other.
  • the nipple 10 is carried by a rectangular tongue 11 cut out in the middle zone (FIG. 1) of the upper shell 1a, with from the free edge 7.
  • a fulcrum 14 such as a pressure P (FIG. 4) exerted for example using a thumb on the part of the tongue 11 between the fulcrum 14 and the foot 12 of the tongue in the hollow 13 made, by leverage on point 14, raise the nose 11a of the tongue in R and therefore move away from the shell 1b the blade locking pin 10.
  • the tongue 11 is only deformed by this pressure so that, from on either side of the tongue, the zone of the shell 1a in the vicinity of the edge 7 remains in place by maintaining the slot 8a.
  • the blade 3 remains retained between the shells 1a, 1b and is not driven by the nose 11a of the tongue.
  • nipple 10 It is thus normally released by the nipple 10 and can be extracted from its housing, laterally, on one side or the other of the cutter, for a blade change for example.
  • the device By releasing the pressure P, the device returns elastically, due to the nature of the plastic material used, in the position (figure 3) of locking of the new blade 3 by penetration of the stud 10 in the hole 5.
  • the housing (8, 8a) receiving the blade 3 is suitable for type of blade which can vary, this housing can also be entirely conformed in the non-deformable shell (1b) and possibly provided with means for blocking the movement of the blade perpendicular to its plan.
  • the hinge (2) connecting the two shells 1a, 1b and whose interest is obvious since it allows the realization by a single mold of a blade holder monobloc by simple self-centered folding of the two shells, can of course be performed in another way with one or more elements.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)

Abstract

The scraper, taking a metal blade (3) with a central oblong slot and a reinforced back edge, has a blade holder moulded in one piece from a semi-rigid plastic material to form two more or less flat hinged halves. When fitted together, the two halves have a recess for the blade, a projection (10) to engage with the blade slot and an inner cavity (13) between the halves. When pressure is applied to one side of the holder the blade recess opens to allow the blade to be removed and/or replaced.

Description

La présente invention a trait à un cutter à porte-lame monobloc dont la lame peut être fixée en place ou libérée pour un changement par simple pression.The present invention relates to a cutter with a monobloc blade holder, the blade can be fixed in place or released for a simple change pressure.

La but de l'invention est de proposer une structure de porte-lame simple, efficace et ne nécessitant aucun démontage pour la mise en place ou le changement de lame.The object of the invention is to propose a blade holder structure simple, effective and requiring no disassembly for the installation or blade change.

A cet effet, l'invention a pour objet un cutter à porte-lame monobloc à fixation-libération de la lame par pression, caractérisé en ce que ledit porte-lame est réalisé par moulage d'une matière plastique semi-rigide et comporte deux coques sensiblement planes rabattues en regard l'une de l'autre, reliées par un pontage mince et définissant entre elles un logement de réception d'une lame ouvert au moins sur un côté, l'une des parties comportant sur sa face interne une saillie susceptible de pénétrer dans un trou de la lame en sorte de la retenir prisonnière dans ledit logement et étant, au voisinage de ce dernier, déformable par pression en sorte, par effet de levier, d'éloigner ladite saillie de la face opposée de l'autre coque, permettant ainsi le libre passage de la lame hors de son logement.To this end, the subject of the invention is a cutter with a monobloc blade holder with fixation-release of the blade by pressure, characterized in that said blade holder is made by molding a semi-rigid plastic material and comprises two substantially flat shells folded down opposite one of the other, connected by a thin bridge and defining between them a housing of receiving a blade open at least on one side, one of the parts having on its internal face a projection capable of penetrating a hole of the blade so as to hold it captive in said housing and being, at the neighborhood of the latter, deformable by pressure so, by leverage, to move said projection away from the opposite face of the other shell, thus allowing the free passage of the blade out of its housing.

Suivant un mode de réalisation, ladite saillie est ménagée au voisinage de l'extrémité libre d'une languette formant tout ou partie de l'une des deux coques du porte-lame, ladite languette étant susceptible de basculer autour d'un point d'appui ménagé sur la seconde coque en regard de la zone centrale de la languette, lors d'une pression exercée sur cette dernière, entre ledit point d'appui et le pied de la languette, en direction de ladite seconde coque.According to one embodiment, said projection is formed in the vicinity of the free end of a tongue forming all or part of one of the two blade holder shells, said tongue being capable of tilting around a fulcrum provided on the second hull facing the central area of the tongue, when it is pressed on it, between said point support and the foot of the tongue, in the direction of said second shell.

Un tel dispositif est particulièrement simple et peu coûteux à réaliser puisqu'il comprend une pièce unique moulée qui, par simple déformation par pression d'un pouce par exemple, permet la mise en place ou l'extraction d'un lame mince conventionnelle et par relâchement de ladite pression, revient en position normale d'utilisation du cutter, la lame étant correctement et fermement calée et retenue prisonnière dans son logement en ne laissant dépasser au dehors que la frange portant l'arête coupante.Such a device is particularly simple and inexpensive to produce since it comprises a single molded part which, by simple deformation by pressure of one inch for example, allows the establishment or extraction of a conventional thin blade and by releasing said pressure, returns to normal position for using the cutter, the blade being correctly and firmly wedged and held captive in its housing by not leaving protrude outside than the fringe carrying the cutting edge.

Aucune pièce rapportée, fixe ou mobile, n'est donc nécessaire pour commander le déverrouillage de la lame.No attachment, fixed or mobile, is therefore necessary to command to unlock the blade.

D'autres caractéristiques et avantages ressortiront de la description qui va suivre d'un mode de réalisation d'un cutter selon l'invention, description donnée à titre d'exemple uniquement et en regard des dessins annexés sur lesquels :

  • la figure 1 est une vue de dessus d'un cutter selon l'invention,
  • la figure 2 est un vue en élévation latérale du cutter de la figure 1,
  • la figure 3 est une vue de dessus d'un type de lame conventionnelle utilisable avec le cutter,
  • la figure 4 est une vue agrandie en coupe suivant la ligne IV-IV du cutter de la figure 1, et
  • la figure 5 représente le cutter de la figure 4 en position d'ouverture du logement de la lame pour son extraction.
Other characteristics and advantages will emerge from the description which follows of an embodiment of a cutter according to the invention, description given by way of example only and with reference to the appended drawings in which:
  • FIG. 1 is a top view of a cutter according to the invention,
  • FIG. 2 is a side elevation view of the cutter of FIG. 1,
  • FIG. 3 is a top view of a type of conventional blade usable with the cutter,
  • FIG. 4 is an enlarged sectional view along line IV-IV of the cutter of FIG. 1, and
  • 5 shows the cutter of Figure 4 in the open position of the blade housing for its extraction.

Le cutter représenté sur les dessins est constitué d'une pièce unique en matière plastique semi-rigide moulée par injection comprenant deux coques 1a et 1b reliées par une charnière constituée par deux pontages minces 2. Au démoulage, les coques 1a, 1b sont sensiblement dans le même plan et côte à côte et sont ensuite rabattues d'une contre l'autre, l'articulation se faisant au droit la charnière de liaison 2, en étant maintenues dans cette position, comme un bivalve, par tous moyens appropriés (non représentés) tels que soudage ou clipsage par tétons et trous récepteurs. The cutter shown in the drawings consists of a single piece in semi-rigid plastic injection molded comprising two shells 1a and 1b connected by a hinge constituted by two thin bridges 2. Au demoulding, the shells 1a, 1b are substantially in the same plane and side by side and are then folded back against each other, the articulation being made at right the connecting hinge 2, being kept in this position, as a bivalve, by any appropriate means (not shown) such as welding or clipping by pins and receiving holes.

Les coques 1a, 1b ainsi rabattues forment un porte-lame 1 recevant une lame rectangulaire conventionnelle 3 du type illustré par la figure 3.The shells 1a, 1b thus folded back form a blade holder 1 receiving a conventional rectangular blade 3 of the type illustrated in FIG. 3.

Cette lame 3 présente un bord coupant 4, un trou oblong central 5 et son autre bord est enchâssé dans un cache métallique 6.This blade 3 has a cutting edge 4, a central oblong hole 5 and its other edge is encased in a metal cover 6.

Le porte-lame 1 comporte à l'opposé de l'axe de la charnière 2 un bord parallèle 7 duquel dépasse la frange portant le bord tranchant 4 de la lame 3.The blade holder 1 has, opposite the axis of the hinge 2, an edge parallel 7 which extends beyond the fringe carrying the cutting edge 4 of the blade 3.

Le porte-lame 1 forme ainsi un cutter de dimensions réduites qui peut être tenu entre le pouce, l'index et le medium pour être utilisé comme grattoir pour nettoyer les pare-brise destinés aux automobiles.The blade holder 1 thus forms a cutter of reduced dimensions which can be held between the thumb, index finger and medium to be used as a scraper for cleaning windshields intended for automobiles.

La lame 3 est retenue prisonnière entre les coques 1a, 1b, dans un logement 8 défini dans la zone voisine du bord 7.The blade 3 is held captive between the shells 1a, 1b, in a housing 8 defined in the area adjacent to the edge 7.

Ce logement 8 comprend une partie susceptible d'accueillir le cache 6 de la lame, reliée au bord frontal 7 du cutter par une fente 8a, délimitée entre les deux coques 1a, 1b et d'épaisseur très légèrement supérieure à celle de la lame 3.This housing 8 includes a part capable of accommodating the cover 6 of the blade, connected to the front edge 7 of the cutter by a slot 8a, delimited between the two shells 1a, 1b and of thickness very slightly greater than that of the blade 3.

Le logement 8 et la fente 8a débouchent des deux côtés latéraux du cutter comme on peut l'observer sur la figure 2, permettant ainsi d'enfiler la lame 3 latéralement au cutter, d'un côté ou de l'autre.The housing 8 and the slot 8a open on the two lateral sides of the cutter as can be seen in Figure 2, allowing you to thread the blade 3 laterally to the cutter, on one side or the other.

En position correcte de la lame 3 dans le cutter, le cache 6 butte contre un épaulement 9 conformé dans la coque inférieure 1b (figure 3), cependant que dans le trou 5 s'étend jusqu'au contact avec la paroi en regard de la coque 1b, un téton 10 de centrage-calage, conformé dans la coque supérieure 1a.In the correct position of the blade 3 in the cutter, the cover 6 abuts against a shoulder 9 shaped in the lower shell 1b (Figure 3), however that in the hole 5 extends until contact with the wall opposite the shell 1b, a stud 10 for centering-wedging, shaped in the upper shell 1a.

Plus précisément, le téton 10 est porté par une languette rectangulaire 11 découpée dans la zone médiane (figure 1) de la coque supérieure 1a, à partir du bord libre 7.More specifically, the nipple 10 is carried by a rectangular tongue 11 cut out in the middle zone (FIG. 1) of the upper shell 1a, with from the free edge 7.

La languette 11, dans sa partie située entre l'épaulement 9 et le pied 12 de la languette, se trouve en regard d'un creux 13 ménagé dans la coque inférieure 1b. Au voisinage de l'épaulement 9 est ainsi défini un point d'appui 14 tel qu'une pression P (figure 4) exercée par exemple à l'aide d'un pouce sur la partie de la languette 11 entre le point d'appui 14 et le pied 12 de la languette dans le creux 13 fait, par effet de levier en appui sur le point 14, relever en R le nez 11a de la languette et donc s'éloigner de la coque 1b le téton 10 de blocage de la lame 3.The tongue 11, in its part located between the shoulder 9 and the foot 12 of the tongue, is located opposite a hollow 13 formed in the shell lower 1b. In the vicinity of the shoulder 9 is thus defined a fulcrum 14 such as a pressure P (FIG. 4) exerted for example using a thumb on the part of the tongue 11 between the fulcrum 14 and the foot 12 of the tongue in the hollow 13 made, by leverage on point 14, raise the nose 11a of the tongue in R and therefore move away from the shell 1b the blade locking pin 10.

La languette 11 est seule déformée par cette pression en sorte que, de part et d'autre de la languette, la zone de la coque 1a au voisinage du bord 7 demeure en place en maintenant la fente 8a. Ainsi, la lame 3 demeure retenue entre les coques 1a, 1b et n'est pas entraínée par le nez 11a de la languette.The tongue 11 is only deformed by this pressure so that, from on either side of the tongue, the zone of the shell 1a in the vicinity of the edge 7 remains in place by maintaining the slot 8a. Thus, the blade 3 remains retained between the shells 1a, 1b and is not driven by the nose 11a of the tongue.

Elle est ainsi normalement libérée par le téton 10 et peut être extraite de son logement, latéralement, d'un côté ou de l'autre du cutter, pour un changement de lame par exemple.It is thus normally released by the nipple 10 and can be extracted from its housing, laterally, on one side or the other of the cutter, for a blade change for example.

En relâchant la pression P, le dispositif revient élastiquement, du fait de la nature du matériau plastique utilisé, dans la position (figure 3) de verrouillage de la nouvelle lame 3 par pénétration du téton 10 dans le trou 5.By releasing the pressure P, the device returns elastically, due to the nature of the plastic material used, in the position (figure 3) of locking of the new blade 3 by penetration of the stud 10 in the hole 5.

Le principe de commande de l'écartement du téton 10 de sa position de verrouillage est un levier du type dans lequel le point d'appui (14) est situé entre le point d'application de la force (P) de commande et le point d'application de la force résultante (R).The principle of controlling the spacing of the stud 10 from its position locking is a lever of the type in which the fulcrum (14) is located between the point of application of the control force (P) and the point of application of the resulting force (R).

Il est évident que ce principe peut être mis en oeuvre suivant différentes variantes sans sortir pour autant du cadre de l'invention.It is obvious that this principle can be implemented according to different variants without departing from the scope of the invention.

C'est ainsi que les formes et dimensions de la partie (languette 11) agencée pour agir comme une bascule peuvent varier dans une large mesure, ladite languette pouvant éventuellement constituer l'une (1a) des deux coques repliées l'une sur l'autre.This is how the shapes and dimensions of the part (tab 11) arranged to act as a rocker can vary to a large extent, said tongue possibly being able to constitute one (1a) of the two shells folded over each other.

De même, le logement (8, 8a) récepteur de la lame 3 est approprié au type de lame qui peut varier, ce logement pouvant par ailleurs être tout entier conformé dans la coque non déformable (1b) et éventuellement muni de moyens de blocage du déplacement de la lame perpendiculairement à son plan.Similarly, the housing (8, 8a) receiving the blade 3 is suitable for type of blade which can vary, this housing can also be entirely conformed in the non-deformable shell (1b) and possibly provided with means for blocking the movement of the blade perpendicular to its plan.

La charnière (2) reliant les deux coques 1a, 1b et dont l'intérêt est évident puisqu'elle permet la réalisation par un moule unique d'un porte-lame monobloc par simple rabattement auto-centré des deux coques, peut bien sûr être réalisée d'une autre manière avec un ou plusieurs éléments.The hinge (2) connecting the two shells 1a, 1b and whose interest is obvious since it allows the realization by a single mold of a blade holder monobloc by simple self-centered folding of the two shells, can of course be performed in another way with one or more elements.

Claims (4)

Cutter à porte-lame monobloc à fixation-libération de la lame par pression, caractérisé en ce que ledit porte-lame (1) est réalisé par moulage d'une matière plastique semi-rigide et comporte deux coques sensiblement planes (1a, 1b) rabattues en regard l'une de l'autre, reliées par un pontage mince (2) et définissant entre elles un logement de réception d'une lame (3) ouvert au moins sur les côtés, l'une des parties (1a) comportant sur sa face interne une saillie (10) susceptible de pénétrer dans un trou (5) de la lame (3) en sorte de la retenir prisonnière dans ledit logement (8, 8a) et étant, au voisinage de ce dernier, déformable par pression (P) en sorte, par effet de levier, d'éloigner ladite saillie (10) de la face opposée de l'autre coque (1b), permettant ainsi le libre passage de la lame (3) hors de son logement (8, 8a).Cutter with a monobloc blade holder for fixing and releasing the blade by pressure, characterized in that said blade holder (1) is produced by molding a semi-rigid plastic material and comprises two substantially flat shells (1a, 1b) folded down opposite each other, connected by a thin bridge (2) and defining between them a housing for receiving a blade (3) open at least on the sides, one of the parts (1a) comprising on its internal face a projection (10) capable of penetrating a hole (5) of the blade (3) so as to hold it captive in said housing (8, 8a) and being, in the vicinity of the latter, deformable by pressure (P) by leveraging, to move said projection (10) away from the opposite face of the other shell (1b), thus allowing the free passage of the blade (3) out of its housing (8, 8a). Cutter suivant la revendication 1, caractérisé en ce que ladite saillie (10) est ménagée au voisinage de l'extrémité libre d'une languette (11) formant tout ou partie de l'une (1a) des deux coques du porte-lame (1), ladite languette (11) étant susceptible de basculer autour d'un point d'appui (14) ménagé sur la seconde coque (1b) en regard de la zone centrale de la languette lors d'une pression exercée sur cette dernière, entre ledit point d'appui (14) et le pied (12) de la languette (11), en direction de ladite seconde coque (1b).Cutter according to claim 1, characterized in that said projection (10) is formed in the vicinity of the free end of a tongue (11) forming all or part of one (1a) of the two shells of the blade holder ( 1), said tongue (11) being capable of tilting around a fulcrum (14) formed on the second shell (1b) facing the central zone of the tongue during a pressure exerted on the latter, between said fulcrum (14) and the foot (12) of the tongue (11), in the direction of said second shell (1b). Cutter suivant la revendication 1 ou 2, caractérisé en ce que ledit logement (8, 8a) de la lame (3) est rectangulaire et ouvert sur trois côtés en sorte d'insérer la lame (3) latéralement d'un côté ou de l'autre du cutter.Cutter according to claim 1 or 2, characterized in that said housing (8, 8a) of the blade (3) is rectangular and open on three sides so as to insert the blade (3) laterally from one side or from the other of the cutter. Cutter suivant la revendication 3, caractérisé en ce qu'un creux (13) est ménagé entre la coque inférieure (1b) et la languette (11) en sorte de permettre le basculement de cette dernière lors de l'application de ladite pression (P).Cutter according to Claim 3, characterized in that a recess (13) is formed between the lower shell (1b) and the tongue (11) so as to allow the latter to tilt when the said pressure is applied (P ).
EP20010450019 2000-11-24 2001-11-23 Cutter with one piece holder for fixing and releasing the blade by pressure Withdrawn EP1211031A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0015202A FR2817187B1 (en) 2000-11-24 2000-11-24 CUTTER WITH BLADE HOLDER MONOBLOCK AT FIXING-RELEASE OF THE BLADE BY PRESSURE
FR0015202 2000-11-24

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EP1211031A1 true EP1211031A1 (en) 2002-06-05

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EP (1) EP1211031A1 (en)
FR (1) FR2817187B1 (en)

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US7520059B2 (en) * 2005-08-02 2009-04-21 The Stanley Works Compact utility knife
US7797836B2 (en) * 2005-08-02 2010-09-21 The Stanley Works Compact utility 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
US8181352B1 (en) 2008-12-03 2012-05-22 Shackelford Sr Howard L Scalpel with removable blade assembly
US10442093B2 (en) * 2009-11-18 2019-10-15 Klever Kutter Llc Safety utility blades, assemblies and methods of manufacturing
US20100223793A1 (en) * 2009-03-04 2010-09-09 The Stanley Works Utility knife
US8413339B2 (en) * 2011-02-03 2013-04-09 Stanley Black & Decker, Inc. Quick change snap off knife
CN102935645B (en) * 2012-10-30 2014-12-10 苏州市职业大学 Blade-replaceable kitchen knife
US8914982B1 (en) 2013-01-22 2014-12-23 Dell Skluzak Quick release utility knife blade holder
TWI617406B (en) * 2017-11-08 2018-03-11 Quick blade change tool
TWI650216B (en) * 2018-01-31 2019-02-11 鴻安國際興業有限公司 Easy to change blade tool

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US4612707A (en) * 1984-03-29 1986-09-23 Shea Thomas M Cutting and scraping device
US4979300A (en) * 1989-11-16 1990-12-25 Blank William J Cutting and scraping tool using razor blades
US5666732A (en) * 1994-09-28 1997-09-16 Shea; Thomas M. Holder for use with a razor blade
US5943781A (en) * 1996-01-03 1999-08-31 Violex-Bic S.A. Safety razor blade tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612707A (en) * 1984-03-29 1986-09-23 Shea Thomas M Cutting and scraping device
US4979300A (en) * 1989-11-16 1990-12-25 Blank William J Cutting and scraping tool using razor blades
US5666732A (en) * 1994-09-28 1997-09-16 Shea; Thomas M. Holder for use with a razor blade
US5943781A (en) * 1996-01-03 1999-08-31 Violex-Bic S.A. Safety razor blade tool

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Publication number Publication date
FR2817187B1 (en) 2003-02-28
US20020096032A1 (en) 2002-07-25
FR2817187A1 (en) 2002-05-31

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