EP1964652B1 - Safety knife - Google Patents
Safety knife Download PDFInfo
- Publication number
- EP1964652B1 EP1964652B1 EP08102013A EP08102013A EP1964652B1 EP 1964652 B1 EP1964652 B1 EP 1964652B1 EP 08102013 A EP08102013 A EP 08102013A EP 08102013 A EP08102013 A EP 08102013A EP 1964652 B1 EP1964652 B1 EP 1964652B1
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- EP
- European Patent Office
- Prior art keywords
- pushbutton
- knife
- blade
- rocker
- pusher
- 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.)
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- 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 present invention relates to a safety knife comprising a body and a blade with axial output of the body, automatically retractable and having a maneuvering pusher protruding from the body.
- the safety knives generally include a blade entering the body of the knife to avoid injuring their user when they are not in use and can be put in a pocket or bag safely.
- the operators manipulate the device to make a cut and release it once this cut is made which retracts and secures the blade in the body of the knife.
- the longitudinal devices are generally positioned on the knife to be manipulated with the thumb and, in the case of intensive use in cardboard receiving workshop to unpack, for example, the repeated succession of movements of the blade maneuver quickly tiresome even cause of pathologies such as tendonitis.
- a safety knife according to the preamble of the revendication 1 is known from the document US 2004/237 312 A1 .
- the present invention is placed in the context of producing a more ergonomic knife that knives with longitudinal operating devices and in particular the realization of a knife whose operating device, transverse to the body of the knife, can be maneuver using several fingers in a natural movement of gripping the knife and tightening the fingers around the body of the knife.
- the safety knife of the present invention is provided with a knife body and a retractable blade in the body and characterized in that it comprises a pusher, transverse to the body of the knife, the pusher protruding transversely of the body of the knife when the blade is retracted into the body of the knife and sinking into the body of the knife to remove the blade, and provided with means for transforming the transverse movement of the pusher in longitudinal movement of the blade disposed between the pusher and the blade. blade.
- the pusher is disposed in the lower part of the knife body in a median area of the knife body, approximately opposite the position of the index and / or major of the operator.
- the pusher is disposed in the upper part of the knife and is operable with the palm of the operator.
- the knife of the invention comprises means for preventing actuation of the pusher which preferably comprise a locking rocker provided with a distal end which comprises a shoulder for retaining the pusher in the output position of the knife body.
- the blocking rocker is operated by a button, slidably disposed on the body of the knife, the button being configured to rotate the blocking rocker and release the pusher during its sliding.
- the locking rocker is operated by a push button causing it to rotate.
- the safety knife shown at figure 1 is provided with a knife body 1 consisting of two half-shells 1a, 1b.
- the body contains a blade 2 retractable in the body and being operated by means of a pusher 3, transverse to the body of the knife.
- a pusher 3 which has a transverse movement to the body of the knife, protrudes transversely of the body of the knife when the blade 2 is tucked into the body of the knife 1 and sinks in the knife body to remove the blade 2.
- the pusher 3 is disposed in the lower part of the body of the knife 1, in a median area of the knife body, approximately opposite the position of the index and / or major of the operator.
- the operation of the pusher is in a natural movement of gripping and gripping of the fingers on the knife and does not require extension of the thumb as in the case of knives with side or upper slider.
- the figure 1 represents the pusher in the rest position at rest and the blade retracted
- the figure 2 represents the pusher in the actuated position and the blade in the extended position following the actuation of the pusher.
- the pusher 3 ' is a rotary pusher disposed in the upper part of the knife and operable with the palm of the operator which again corresponds to a maneuver in a natural sense completing the gripping of the knife.
- the blade 2 is carried by a blade holder 6 more particularly shown in FIG. figure 3 .
- the blade holder 6 comprises slides 19, 20 which hold the blade longitudinally and comprises, for the retention of the blade, a pin 16 and a boss 21 received in cutouts 18, 22 of the blade and a support tongue 17 so that the blade, guided by the slides slides under the support tongue 17 and engages on the pin 16 and the boss 21.
- means 4, 5 for transforming the transverse movement of the pusher 3 in longitudinal movement of the blade are arranged between the pusher and the blade holder 6 on which is arranged the blade 2.
- the rocker 4 is rotatably mounted on a first axis 8, carried by a shell 1a of the body and received in a housing 25 of the rocker 4.
- the rocker comprises a second axis 9, rotational drive of the rocker by the pusher which comprises a cam path 15 in which is received the second axis 9.
- the rocker comprises a housing 10, for receiving a third axis 11 disposed on the rod, the third axis providing a hinge allowing the thrust of the rod by the rocker during the rotation of the rocker .
- the distance between the first 8 and second 9 of axes is less than the distance between the first 8 and the third 11 of the axes.
- the blade holder 6 is biased by a spring 7, in a direction of retraction of the blade into the body.
- the spring 7 clings to a pin 23 of the rocker and a stud 24 of the body and works in extension when the blade is out of the body.
- the figure 4 represents the parts of the blade operating device in perspective and engaged with each other to represent the kinematic chain between the pusher and the blade holder.
- a disadvantage of the knife of the present invention is that the movement of the pusher being transversely to the longitudinal axis of the knife body, an accidental pressing on the pusher is possible, for example when the operator puts his knife in a pocket .
- a particular embodiment of the invention provides means 12, 13, 32, 33 for prohibiting operation of the pusher 3.
- the maneuvering prohibition means comprise a locking rocker 13, 33 provided with a distal end which comprises a shoulder 35 holding the pusher 3, 3 'in the output position of the knife body.
- the blocking rocker 13 is operated by a button 12, slidably disposed on the body of the knife, the button 12 being configured to rotate the blocking rocker 13 and release the pusher during its sliding.
- a spring 14 is disposed between the body and the operating prohibition means for biasing the button 12 and the blocking rocker 13 in the pusher retaining position.
- the button 12 is in the form of a slider slidably disposed on the body of the knife and can be slidably operated along the body of the knife.
- the slide button represented in the rest position figure 1 and in advanced position in figure 2 is maneuvered with the thumb in the case of the example of Figures 1 and 2 .
- the button 12 acts, when pushed, on a blocking rocker 13 provided with a distal retaining end of the pusher 3 in the extended position of the body.
- the button 12 adapted to slide on the body is configured to rotate the blocking rocker 13 and release the pusher.
- the maneuvering prohibition means comprise a spring 14 which is arranged between the body and the maneuver prohibition means to recall the sliding knob 12 and the locking rocker 13 in the retaining position of the pusher.
- the spring is fixed between a pin 26 of the knife body and a hook 27 carried by an extension of the button.
- the articulation between the button 12 and the blocking rocker 13 is between a pin 28 and a cam track 29 more particularly represented in FIG. figure 4 , the locking rocker 13 being rotatably mounted on an axis 30 of the knife body as shown in FIG. figure 3 .
- the blocking rocker 13 When the pusher 3 is in the extended position, the blocking rocker 13 has a shoulder engaged with the inner face of the pusher and when the button is slidably operated, the shoulder disappears leaving free passage of the pusher inwards of the body of the knife.
- the blocking rocker abuts against a side face of the pusher and, as soon as the pusher is released, the blocking rocker returns to the blocking position of the pusher.
- This principle ensures the blocking of the pusher as soon as the cutting operation is completed and the blade is retracted into the knife body which provides great safety to the knife of the invention.
- the maneuvering prohibition means do not comprise a sliding button but comprise a push button 32 rotating a blocking rocker 33 provided with a distal retaining end of the pusher 3 'in the extended position of the body.
- a spring link 34 connects the push button 32 to the blocking rocker 33 which, as in the example of the Figures 1 to 4 has a shoulder to retain the pusher 3 'in the output position of the knife body.
- the spring link 34 just as the spring 14 exerts a restoring force on the push button 32 and on the blocking rocker 33 to return them to the blocking position of the pusher 3 '.
- the position of the maneuvering means of the example of the figure 6 can be positioned on a lower part of the knife to be manipulated with a finger.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
- Shovels (AREA)
- Crushing And Pulverization Processes (AREA)
- Sawing (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
La présente invention concerne un couteau de sécurité comportant un corps et une lame à sortie axiale du corps, automatiquement rétractable et comportant un poussoir de manoeuvre en saillie par rapport au corps.The present invention relates to a safety knife comprising a body and a blade with axial output of the body, automatically retractable and having a maneuvering pusher protruding from the body.
Les couteaux de sécurité comportent généralement une lame rentrant dans le corps du couteau pour éviter de blesser leur utilisateur quand ils ne sont pas en fonction et pouvoir être mis dans une poche ou un sac sans risque.The safety knives generally include a blade entering the body of the knife to avoid injuring their user when they are not in use and can be put in a pocket or bag safely.
Il est connu de munir de tels couteaux de dispositifs de manoeuvre de la lame coulissant longitudinalement sur le corps du couteau et peu susceptibles d'être actionnés accidentellement.It is known to provide such knives with maneuvering devices of the blade sliding longitudinally on the body of the knife and unlikely to be actuated accidentally.
Dans le cas de couteaux à lame rétractable automatiquement, lorsque l'on relâche le dispositif de manoeuvre, la lame rentre dans le corps du couteau sous l'action d'un ressort.In the case of automatically retractable blade knives, when releasing the operating device, the blade enters the body of the knife under the action of a spring.
Les opérateurs manoeuvrent le dispositif pour réaliser une coupe et le relâchent une fois cette coupe réalisée ce qui rétracte et sécurise la lame dans le corps du couteau.The operators manipulate the device to make a cut and release it once this cut is made which retracts and secures the blade in the body of the knife.
Les dispositifs longitudinaux sont en général positionnés sur le couteau pour être manoeuvrés avec le pouce et, dans le cas d'une utilisation intensive en atelier de réceptions de cartons à déballer par exemple, la succession répétée de mouvements de manoeuvre de la lame devient vite fatigante voire cause de pathologies telles que les tendinites.The longitudinal devices are generally positioned on the knife to be manipulated with the thumb and, in the case of intensive use in cardboard receiving workshop to unpack, for example, the repeated succession of movements of the blade maneuver quickly tiresome even cause of pathologies such as tendonitis.
Un couteau de sécurité selon le préambule de la revnedication 1 est connu du document
La présente invention se place dans le cadre de la réalisation d'un couteau plus ergonomique que les couteaux à dispositifs de manoeuvre longitudinaux et notamment de la réalisation d'un couteau dont le dispositif de manoeuvre, transversal par rapport au corps du couteau, peut se manoeuvrer à l'aide de plusieurs doigts dans un mouvement naturel de préhension du couteau et de serrage des doigts autour du corps du couteau.The present invention is placed in the context of producing a more ergonomic knife that knives with longitudinal operating devices and in particular the realization of a knife whose operating device, transverse to the body of the knife, can be maneuver using several fingers in a natural movement of gripping the knife and tightening the fingers around the body of the knife.
Pour ce faire le couteau de sécurité de la présente invention est pourvu d'un corps de couteau et d'une lame rétractable dans le corps et caractérisé en ce qu'il comporte un poussoir, transversal au corps du couteau, le poussoir dépassant transversalement du corps du couteau lorsque la lame est rentrée dans le corps du couteau et s'enfonçant dans le corps du couteau pour sortir la lame, et pourvu de moyens de transformation du mouvement transversal du poussoir en mouvement longitudinal de la lame disposés entre le poussoir et la lame.To do this, the safety knife of the present invention is provided with a knife body and a retractable blade in the body and characterized in that it comprises a pusher, transverse to the body of the knife, the pusher protruding transversely of the body of the knife when the blade is retracted into the body of the knife and sinking into the body of the knife to remove the blade, and provided with means for transforming the transverse movement of the pusher in longitudinal movement of the blade disposed between the pusher and the blade. blade.
Selon un premier mode de réalisation, le poussoir est disposé en partie inférieure du corps du couteau dans une zone médiane du corps du couteau, approximativement en regard de la position de l'index et/ou du majeur de l'opérateur.According to a first embodiment, the pusher is disposed in the lower part of the knife body in a median area of the knife body, approximately opposite the position of the index and / or major of the operator.
Selon un second mode de réalisation, le poussoir est disposé en partie supérieure du couteau et est actionnable avec la paume de l'opérateur.According to a second embodiment, the pusher is disposed in the upper part of the knife and is operable with the palm of the operator.
Avantageusement le couteau de l'invention comprend des moyens d'interdiction de manoeuvre du poussoir qui comportent préférentiellement un basculeur de blocage pourvu d'une extrémité distale qui comporte un épaulement venant retenir le poussoir en position de sortie du corps du couteau.Advantageously, the knife of the invention comprises means for preventing actuation of the pusher which preferably comprise a locking rocker provided with a distal end which comprises a shoulder for retaining the pusher in the output position of the knife body.
Selon un premier mode de réalisation le basculeur de blocage est manoeuvré par un bouton, disposé coulissant sur le corps du couteau, le bouton étant configuré pour entraîner en rotation le basculeur de blocage et libérer le poussoir lors de son coulissement.According to a first embodiment the blocking rocker is operated by a button, slidably disposed on the body of the knife, the button being configured to rotate the blocking rocker and release the pusher during its sliding.
Selon un second mode de réalisation, le basculeur de blocage est manoeuvré par un bouton poussoir l'entraînant en rotation.According to a second embodiment, the locking rocker is operated by a push button causing it to rotate.
D'autres caractéristiques et avantages de l'invention seront apparents à la lecture de la description qui suit d'un exemple de réalisation non limitatif d'un couteau selon l'invention en référence aux dessins qui représentent:
- en
figure 1 : une vue de côté d'un couteau selon l'invention coque droite retirée et lame rentrée; - en
figure 2 : le couteau de lafigure 1 lame sortie; - en
figure 3 : une vue en éclaté du couteau de lafigure 1 ; - en
figure 4 : une vue en perspective éclatée du couteau de lafigure 1 ; - en
figure 5 : une variante de couteau selon l'invention en vue de côté trappe d'accès à la lame retirée; - en
figure 6 : la variante de couteau de lafigure 5 coque gauche retirée.
- in
figure 1 : a side view of a knife according to the invention right shell removed and blade retracted; - in
figure 2 : the knife of thefigure 1 blade outlet; - in
figure 3 : an exploded view of the knife of thefigure 1 ; - in
figure 4 : an exploded perspective view of the knife of thefigure 1 ; - in
figure 5 : a knife variant according to the invention in side view hatch access to the blade removed; - in
figure 6 : the knife variant of thefigure 5 left hull removed.
Le couteau de sécurité représenté à la
Le corps renferme une lame 2 rétractable dans le corps et se manoeuvrant au moyen d'un poussoir 3, transversal au corps du couteau.
pour obtenir une bonne ergonomie et limiter la fatigue d'utilisation du couteau, le poussoir 3 qui a un mouvement transversal au corps du couteau, dépasse transversalement du corps du couteau lorsque la lame 2 est rentrée dans le corps du couteau 1 et s'enfonce dans le corps du couteau pour sortir la lame 2.The body contains a
to obtain a good ergonomics and limit the fatigue of use of the knife, the
Selon l'exemple des
La
En variante de la
La lame 2 est portée par un porte lame 6 plus particulièrement représenté à la
Le porte lame 6 comprend des glissières 19, 20 qui maintiennent la lame longitudinalement et comporte, pour la rétention de la lame, un pion 16 et un bossage 21 reçus dans des découpes 18, 22 de la lame ainsi qu'une languette d'appui 17 de sorte que la lame, guidée par les glissières se glisse sous la languette d'appui 17 et s'encliquette sur le pion 16 et le bossage 21.The
Pour déplacer la lame longitudinalement dans le corps de couteau lorsque le poussoir est actionné, des moyens 4, 5, de transformation du mouvement transversal du poussoir 3 en mouvement longitudinal de la lame, sont disposés entre le poussoir et le porte lame 6 sur lequel est disposée la lame 2.To move the blade longitudinally in the knife body when the pusher is actuated, means 4, 5 for transforming the transverse movement of the
Ces moyens de transformation plus particulièrement détaillés à la
Le basculeur 4 est monté rotatif sur un premier axe 8, porté par une coque 1a du corps et reçu dans un logement 25 du basculeur 4.The
Le basculeur comporte un deuxième axe 9, d'entraînement en rotation du basculeur par le poussoir qui comporte un chemin de came 15 dans lequel est reçu le deuxième axe 9.The rocker comprises a
Pour réaliser la liaison avec la biellette 5, le basculeur comporte un logement 10, de réception d'un troisième axe 11 disposé sur la biellette, le troisième axe réalisant une articulation permettant la poussée de la biellette par le basculeur lors de la rotation du basculeur.To make the connection with the
En sorte d'amplifier la course de la biellette 5 par rapport à la course du poussoir 3, de façon à ce qu'une faible course du poussoir permette une sortie importante de la lame, la distance entre le premier 8 et le deuxième 9 des axes est inférieure à la distance entre le premier 8 et le troisième 11 des axes.In order to amplify the stroke of the
Le porte lame 6 est rappelé par un ressort 7, dans une direction de rentrée de la lame dans le corps.The
Selon l'exemple de la
La
Sur cette figure, il est particulièrement visible que l'on peut faire varier la courbure que l'on donne au corps du couteau pour le rendre ergonomique tout en conservant le même mécanisme de sortie de la lame.In this figure, it is particularly visible that one can vary the curvature that is given to the knife body to make it ergonomic while maintaining the same output mechanism of the blade.
Ceci est possible du fait de la double articulation de la biellette 5, d'une part sur le basculeur 4 et d'autre part sur le porte lame 6, l'axe de déplacement du porte lame pouvant ainsi être modifié.This is possible because of the double articulation of the
Un inconvénient du couteau de la présente invention est que le mouvement du poussoir se faisant transversalement par rapport à l'axe longitudinal du corps du couteau, un appui accidentel sur le poussoir est possible, par exemple lorsque l'opérateur met son couteau dans une poche.A disadvantage of the knife of the present invention is that the movement of the pusher being transversely to the longitudinal axis of the knife body, an accidental pressing on the pusher is possible, for example when the operator puts his knife in a pocket .
Un tel appui peut conduire à une sortie intempestive de la lame.Such support may lead to an inadvertent release of the blade.
Pour éviter les risques de sortie intempestive de la lame, un mode de réalisation particulier de l'invention prévoit des moyens 12, 13, 32, 33 d'interdiction de manoeuvre du poussoir 3.
les moyens d'interdiction de manoeuvre comportent un basculeur de blocage 13, 33 pourvu d'une extrémité distale qui comporte un épaulement 35 venant retenir le poussoir 3, 3' en position de sortie du corps du couteau.To avoid the risk of inadvertent release of the blade, a particular embodiment of the invention provides means 12, 13, 32, 33 for prohibiting operation of the
the maneuvering prohibition means comprise a
Selon l'exemple des
Un ressort 14 est disposé entre le corps et les moyens d'interdiction de manoeuvre pour rappeler le bouton 12 et le basculeur de blocage 13 en position de retenue du poussoir.A
Le bouton 12, est réalisé sous la forme d'un glisseur disposé coulissant sur le corps du couteau et pouvant être manoeuvré par coulissement le long du corps du couteau.The
Le bouton coulissant représenté en position de repos en
Le bouton 12 agit, lorsqu'il est poussé, sur un basculeur de blocage 13 pourvu d'une extrémité distale de retenue du poussoir 3 en position sortie du corps.The
Le bouton 12 adapté à coulisser sur le corps est configuré pour entraîner en rotation le basculeur de blocage 13 et libérer le poussoir.The
Pour ramener le bouton 12 en position de repos et ramener le basculeur de blocage 13 en position de blocage du poussoir, les moyens d'interdiction de manoeuvre comportent un ressort 14 qui est disposé entre le corps et les moyens d'interdiction de manoeuvre pour rappeler le bouton coulissant 12 et le basculeur de blocage 13 en position de retenue du poussoir.To return the
Selon l'exemple et en particulier la
L'articulation entre le bouton 12 et le basculeur de blocage 13 se fait entre un pion 28 et un chemin de came 29 plus particulièrement représentés en
Lorsque le poussoir 3 est en position sortie, le basculeur de blocage 13 comporte un épaulement en prise avec la face interne du poussoir et lorsque le bouton est manoeuvré par coulissement, l'épaulement s'efface laissant libre le passage du poussoir vers l'intérieur du corps du couteau.When the
Si le bouton coulissant est relâché alors que le poussoir est enfoncé, le basculeur de blocage bute contre une face latérale du poussoir et, dès que le poussoir est relâché, le basculeur de blocage revient en position de blocage du poussoir.If the slide button is released while the pusher is depressed, the blocking rocker abuts against a side face of the pusher and, as soon as the pusher is released, the blocking rocker returns to the blocking position of the pusher.
Ce principe assure le blocage du poussoir dès que l'opération de coupe est terminée et que la lame est rentrée dans le corps de couteau ce qui procure une grande sécurité au couteau de l'invention.This principle ensures the blocking of the pusher as soon as the cutting operation is completed and the blade is retracted into the knife body which provides great safety to the knife of the invention.
En variante
Selon cet exemple, un lien ressort 34 relie le bouton poussoir 32 au basculeur de blocage 33 qui, comme dans l'exemple des
Le lien ressort 34 tout comme le ressort 14 exerce une force de rappel sur le bouton poussoir 32 et sur le basculeur de blocage 33 pour les rappeler en position de blocage du poussoir 3'.The
L'invention ne se limite pas aux exemples représentés et englobe toute variante restant dans le champ des revendications.The invention is not limited to the examples shown and encompasses any variant remaining within the scope of the claims.
En particulier la position des moyens d'interdiction de manoeuvre de l'exemple de la
Claims (11)
- Safety knife provided with a knife body (1) and a blade (2) that can be retracted into the body, comprising a pushbutton (3, 3') that is transverse to the body of the knife, the pushbutton (3, 3') protruding transversely from the body of the knife when the blade (2) is retracted into the body of the knife (1) and sinking into the body of the knife in order to bring out the blade (2), and means (4, 5) for converting the transverse movement of the pushbutton (3, 3') into a longitudinal movement of the blade, which means being placed between the pushbutton and the blade, characterized in that it comprises means (12, 13, 32, 33) prohibiting the operation of the pushbutton (3, 3'), the operation-prohibition means comprising a locking rocker (13, 33) provided with a distal end which comprises a shoulder (35) retaining the pushbutton (3') in a position in which it is outside the body of the knife, the rocker being positioned so as to butt against a lateral face of the pushbutton, with the pushbutton sunk in, the locking rocker being suitable for returning to the pushbutton-locking position, when the pushbutton is released.
- Safety knife according to Claim 1, for which the pushbutton (3) is placed in the lower portion of the knife body (1), in a middle zone of the knife body, approximately facing the position of the index and/or of the middle finger of the operator.
- Safety knife according to Claim 1, for which the pushbutton (3) is placed in the upper portion of the knife and can be actuated with the palm of the operator.
- Safety knife according to one of the preceding claims, for which the blade (2) is held by a blade holder (6).
- Safety knife according to Claim 4, for which the blade holder (6) is returned by a spring (7) in a direction for bringing the blade into the body.
- Safety knife according to Claim 4 or 5, for which the blade holder is operated by the pushbutton (3) via a rocker (4) and a link arm (5).
- Safety knife according to Claim 6, for which the rocker (4) is mounted so as to rotate on a first spindle (8) supported by a shell (1a) of the body and accommodated in a housing (25) of the rocker (4), comprises a second spindle (9), for the rotation of the rocker by the pushbutton, the rocker comprising a housing (10) for receiving a third spindle (11), for pushing the link arm, the distance between the first spindle (8) and the second spindle (9) being less than the distance between the first spindle (8) and the third spindle (11) so as to amplify the travel of the link arm (5) relative to the travel of the pushbutton (3).
- Safety knife according to one of the preceding claims, characterized in that the locking rocker (13) is operated by a button (12) placed so as to slide on the knife body, the button (12) being configured to rotate the locking rocker (13) and release the pushbutton when it slides.
- Safety knife according to one of the preceding claims, for which a spring (14) is placed between the body and the operation-prohibition means in order to return the button (12) and the locking rocker (13) to the position of retaining the pushbutton.
- Safety knife according to one of the preceding claims, for which the locking rocker (33) is provided with a distal end for retaining the pushbutton (3') in the position out of the body and operated by a pushbutton (32) rotating it.
- Safety knife according to Claim 10, for which a spring link (34) connects the pushbutton (32) to the locking rocker (33) and returns the latter to the position of locking the pushbutton (3').
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0753537A FR2912945B1 (en) | 2007-02-27 | 2007-02-27 | SAFETY KNIFE |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1964652A1 EP1964652A1 (en) | 2008-09-03 |
EP1964652B1 true EP1964652B1 (en) | 2011-03-23 |
EP1964652B2 EP1964652B2 (en) | 2016-08-17 |
Family
ID=38573455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08102013.3A Active EP1964652B2 (en) | 2007-02-27 | 2008-02-26 | Safety knife |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1964652B2 (en) |
AT (1) | ATE502737T1 (en) |
DE (1) | DE602008005657D1 (en) |
FR (1) | FR2912945B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2956341B1 (en) * | 2010-02-15 | 2012-11-02 | Mure Et Peyrot | SAFETY KNIFE |
CN102335920A (en) * | 2010-07-16 | 2012-02-01 | 上海昆杰五金工具有限公司 | Cutting knife capable of increasing effective using length of blade |
DE102010041486B4 (en) | 2010-09-27 | 2016-02-04 | Holzma Plattenaufteiltechnik Gmbh | Panel dividing plant and method for its operation |
FR3024385B1 (en) | 2014-07-31 | 2017-02-24 | Mure Et Peyrot | KNIFE WITH BLADE OUTPUT CONTROLLED BY PUSH BUTTON AND SPROCKETS |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2552008B1 (en) † | 1983-09-16 | 1987-09-11 | Preposreve Sarl | IMPROVEMENTS ON AUTOMATICALLY RETRACTABLE BLADE KNIVES |
US5890294A (en) † | 1997-01-24 | 1999-04-06 | P.S.I., Inc. | Locking safety utility knife |
US6813833B2 (en) † | 2002-01-16 | 2004-11-09 | Nottingham-Spirk Design Associates, Inc. | Utility knife |
US20040237312A1 (en) * | 2003-05-22 | 2004-12-02 | Hector Hernandez | Knife with trigger actuator for retractable blade |
DE202005003197U1 (en) * | 2005-02-28 | 2005-07-21 | Ho, Chun-Feng | Utility knife, with a cutting blade which can be extended through an opening in the housing, has two compartments with sets of reserve blades to replace worn cutting blades |
-
2007
- 2007-02-27 FR FR0753537A patent/FR2912945B1/en not_active Expired - Fee Related
-
2008
- 2008-02-26 DE DE602008005657T patent/DE602008005657D1/en active Active
- 2008-02-26 EP EP08102013.3A patent/EP1964652B2/en active Active
- 2008-02-26 AT AT08102013T patent/ATE502737T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1964652B2 (en) | 2016-08-17 |
EP1964652A1 (en) | 2008-09-03 |
FR2912945A1 (en) | 2008-08-29 |
ATE502737T1 (en) | 2011-04-15 |
DE602008005657D1 (en) | 2011-05-05 |
FR2912945B1 (en) | 2009-11-27 |
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