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EP0233416A1 - Folding knife - Google Patents

Folding knife Download PDF

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Publication number
EP0233416A1
EP0233416A1 EP86400330A EP86400330A EP0233416A1 EP 0233416 A1 EP0233416 A1 EP 0233416A1 EP 86400330 A EP86400330 A EP 86400330A EP 86400330 A EP86400330 A EP 86400330A EP 0233416 A1 EP0233416 A1 EP 0233416A1
Authority
EP
European Patent Office
Prior art keywords
blade
handle
housing
knife according
knife
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Withdrawn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
EP86400330A
Other languages
German (de)
French (fr)
Inventor
Vitorio Caldoncelli-Vidal
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.)
CALDONCELLI VIDAL VITORIO
Original Assignee
CALDONCELLI VIDAL VITORIO
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
Priority to FR8419503A priority Critical patent/FR2575103B1/en
Application filed by CALDONCELLI VIDAL VITORIO filed Critical CALDONCELLI VIDAL VITORIO
Priority to EP86400330A priority patent/EP0233416A1/en
Publication of EP0233416A1 publication Critical patent/EP0233416A1/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Withdrawn legal-status Critical Current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
    • B26B1/00—Hand knives with adjustable blade; Pocket knives
    • B26B1/02—Hand knives with adjustable blade; Pocket knives with pivoted blade

Definitions

  • the present invention relates generally to a folding knife of the type in which the blade is pivotally mounted at one end of the handle and is arranged to be folded inside the latter.
  • detent knives in which a mechanism, actuated by push button or the like, is capable of carrying out the automatic opening and closing of the blade of the knife, this which can be dangerous, the blade movements being generally extremely fast.
  • this type of knife because it requires a number of internal mechanical parts, has relatively large dimensions.
  • Foldable knives are also widely known in which the blade is held in the open and closed position by a flexible mechanism with hard points.
  • a disadvantage of this type of knife is that the blade is not held rigidly in the open position, its pivoting being always authorized in the direction of closing. In addition, during said closing, the blade is likely to come into its housing with great force, which is dangerous.
  • the present invention aims to overcome these drawbacks and to propose a foldable knife which, while having means for locking the blade in open and closed positions, can have relatively reduced transverse dimensions, in particular to the benefit of less bulk and the elegance of its lines.
  • Another object of the invention consists in exploiting this relative thinness of the knife to actuate the locking means for the purpose of opening and closing.
  • the present invention relates to a folding knife, of the type comprising: a handle in which a longitudinal housing is formed, a pivoting blade in the region of one end of the housing, locking means arranged to immobilize the blade relative to the handle in an open or unfolded position and a closed or folded position, in which the blade is received in said housing, characterized in that the locking means comprise at least one finger projecting from a lateral edge of the blade in the region of its pivoting, arranged to cooperate with a recess formed in an associated surface of the handle, and in that the housing separates the handle into two substantially parallel and relatively flexible parts fixed to each other at the end of the housing opposite the pivot region, so that a movement of separation of the two parts of the handle causes the release of the finger from its associated recess so as to release the blade in rotation.
  • a folding knife according to a first form of the invention comprises a handle, generally indicated at 10 and formed of two parallel parts 12,14 fixed together at one of their ends ( on the left in FIGS. 1 to 3) by means of an element 16 forming a spacer, so that a substantially parallelepipedal housing 18 is defined between them.
  • the fixing may be carried out by rivets or by any other means.
  • the spacer 16 has the shape of a rectangular plate from which extends, substantially parallel to the parts 12, 14, a flexible bar 16 a similar to a conventional pen hanging bar. , which will advantageously store the knife in a pocket like a pen.
  • a blade At the opposite end of the parts 12, 14 of the handle is pivotally mounted a blade, generally indicated at 20.
  • the part 14 of the handle has on its inner face a transverse pivot axis 22 which passes through a circular hole 24 provided at the end on the pivoting side of the blade 20, and the free end of which is received in a second circular hole 26 formed opposite in the part 12 of the handle.
  • the knife further comprises means for blocking the blade 20 in the open and closed positions, respectively.
  • These locking means comprise, on the lateral face of the blade 20 facing the part 12 of the handle 10, a first cylindrical finger 28 in projection located between the hole 24 and the inner end (indicated in 20 a) of the blade 20, as well as a second finger 30 also cylindrical, but whose free end is bevel shaped.
  • the second finger 30 is in a position substantially symmetrical with the first finger 28 relative to the hole 24.
  • the locking means further comprise a recess 32 formed in the inner face of the part 12 of the blade 10.
  • Substantially at the center of the recess 32 is formed as a hole 34, of a diameter substantially equal to that of the fingers 28.30 and arranged so as to be opposite either the finger 28 or the finger 30, depending on whether the blade is in the open position or closed, respectively.
  • a hole 34 of a diameter substantially equal to that of the fingers 28.30 and arranged so as to be opposite either the finger 28 or the finger 30, depending on whether the blade is in the open position or closed, respectively.
  • the knife once assembled is in the form of a relatively rigid assembly, the pivot end of the blade 20 being firmly pinched between the two parts 12,14 of the handle.
  • the transverse thickness of said pivoting end of the blade 20 is in this respect substantially equal to that of the spacer 16, so that the two parts 12, 14 of the handle extend parallel one to the other.
  • the use of the knife according to this first embodiment is as follows: .
  • the end of the finger 30 is engaged in the associated hole 34 of the part 12, and the blade is thus firmly immobilized in this position.
  • the user simply drives the blade 20 outwards (downwards in FIG. 1) by pushing downwards using a finger on the bar 16a, the finger 30, thanks to the bevel conformation of its end, offering only a low resistance to this extraction movement.
  • the amplitude of this extraction movement can advantageously be increased by giving the bar 16a an outwardly curved shape, the downward thrust then being exerted in the central region thereof.
  • the blade can then be grasped from below to be made to pivot in the direction of the arrow 36 (FIG. 1) until the first finger 28 comes up against the upper edge of the recess 32.
  • the two parts 12,14 of the handle are then slightly separated with the fingers so that the finger 28 can first of all slide against the internal face of the recess 32, then come to engage by its free end in the associated hole 34, the parts 12, 14 again approaching one another by their elasticity, and the blade 20 thus being firmly locked in the open position.
  • the object of the offset 32 is to avoid that too great a spacing force is to be exerted to bring the finger into the hole 34.
  • the part 12 of the handle is slightly shorter than the part 14, so that, in the open position as in the closed position, the movements of the finger, which do not is not opposite the recess 32, are not hindered by said part 12, these taking place beyond the corresponding end of this part.
  • the parts 12, 14 are slightly apart, first of all to allow the finger 28 to be released from the hole 34 and then, after an appropriate pivoting according to the arrow 38 (FIG. 1), to insert the end of the finger 30 in the same hole 34.
  • the latching bar 16a can be designed so that the mutual spacing of the parts 12, 14 can be achieved by pushing it between said parts, in a movement similar to that intended for the extraction of the blade 20 from the closed position.
  • the bar may have, for example in the region of its free end, a triangular or trapezoidal cross section whose greatest width will be greater than the width of the housing 18 extending between the two parts 12,14.
  • the knife of Figures 4 to 6 differs from that of Figures 1 to 3 in that the spacer 16 does not include extension in the shape of a pen bar, but has the shape of an oblong element, entirely internal to the handle 10, arranged to act as a stop for the blade 20 in the closed position (not shown), so that a notch 40 for the nail , provided in the face of the blade 20 facing the part 14, projects outside the handle to be able to be used for opening.
  • the bevelled finger 30 will be positioned on the blade so as to be engaged in the hole 34 when the knife is in this closed position at the stop.
  • the knife of Figures 4 to 6 further comprises, at its end remote from the pivoting region, a loop 42 for its attachment.
  • the handle and the blade may have any shape and size.
  • the parts 12 and / or 14 of the handle may have any suitable profile insofar as they retain the flexibility necessary for the operation of the locking means.
  • the part 12 of the handle has a concave part 44 which has the object of making said part more flexible, in order to facilitate its spacing for the release of the blade, as well as d '' lighten the knife and facilitate its gripping.
  • blade was used in the foregoing description, for the pivoting element 20, it is understood that this element may take the form of any tool, instrument, specialized as d 'Daily use. In particular, it may take the form of a cutlery (fork, spoon) with an advantageous minimum size, in particular for use in camping or the like. The shape of the handle will then be modified accordingly to be able to receive the free end of the cover in the folded position.
  • the knife of the invention may be made of any suitable material, such as stainless steel, brass, with if necessary a surface treatment such as plating of precious metal, anodization, or even wood, plastic material, etc. ..
  • a surface treatment such as plating of precious metal, anodization, or even wood, plastic material, etc. ..
  • the finger 30 may be slightly offset in height relative to the axis 22 and to the other finger 28, so that in the folded position, the blade 20 projects slightly from its housing below the handle 10, which facilitates its extraction for example using the notch 40 provided in the blade, which will thus be made accessible.

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

Abstract

Foldable knife comprising a blade (20) articulated (22) on a closed handle of two narrow and flexible parallel parts (12, 14) joined by a spacer (16) at the end opposite the articulation of the blade. The blade (20) is usually locked in an open or closed position by the interaction of a finger (respectively 28 or 30) with a hole (34) formed in the adjacent part (12) of the handle. The said part may be separated in order thus to release the blade (20) in rotation. One of the fingers (30) is bevel cut in order to facilitate extraction of the blade, for example with the aid of a recess (40). Application to the production of any instrument provided with means for locking an articulation while preserving a narrow and elegant line. <IMAGE>

Description

La présente invention a trait d'une façon générale à un couteau pliable du type dans lequel la lame est montée pivotante à une extrémité du manche et est agencée pour être repliée à l'intérieur de ce dernier.The present invention relates generally to a folding knife of the type in which the blade is pivotally mounted at one end of the handle and is arranged to be folded inside the latter.

On connait déjà dans le domaine des types tout à fait divers de couteaux dits à cran d'arrêt, dans lesquel un mécanisme, actionné par poussoir ou autre, est apte à réaliser l'ouverture et la fermeture automatiques de la lame du couteau, ce qui peut s'avérer dangereux, les mouvements de la lame étant généralement extrêmement rapides. En outre, ce type de couteau, du fait qu'il nécessite un cer­tain nombre de pièces mécaniques internes, a des dimensions relative­ment importantes.There are already known in the field quite diverse types of knives known as detent knives, in which a mechanism, actuated by push button or the like, is capable of carrying out the automatic opening and closing of the blade of the knife, this which can be dangerous, the blade movements being generally extremely fast. In addition, this type of knife, because it requires a number of internal mechanical parts, has relatively large dimensions.

On connait en outre largement des couteaux pliables dans lesquels la lame est maintenue en position ouverte et fermée par un mécanisme souple à points durs. Un inconvénient de ce type de couteau est que la lame n'est pas maintenue rigidement en position ouverte, son pivotement étant toujours autorisé dans le sens de la fermeture. En outre, lors de ladite fermeture, la lame est susceptible de venir dans son logement avec une grande force, ce qui est dangereux.Foldable knives are also widely known in which the blade is held in the open and closed position by a flexible mechanism with hard points. A disadvantage of this type of knife is that the blade is not held rigidly in the open position, its pivoting being always authorized in the direction of closing. In addition, during said closing, the blade is likely to come into its housing with great force, which is dangerous.

La présente invention vise à pallier ces inconvénients et à proposer un couteau pliable qui,tout en disposant de moyens de blocage de la lame en positions ouverte et fermée, puisse avoir des di­mensions transversales relativement réduites, au profit notamment d'un moindre encombrement et de l'élégance de ses lignes.The present invention aims to overcome these drawbacks and to propose a foldable knife which, while having means for locking the blade in open and closed positions, can have relatively reduced transverse dimensions, in particular to the benefit of less bulk and the elegance of its lines.

Un autre objet de l'invention consiste à exploiter cet­te relative minceur du couteau pour actionner les moyens de blocage à des fins d'ouverture et de fermeture.Another object of the invention consists in exploiting this relative thinness of the knife to actuate the locking means for the purpose of opening and closing.

A cet effet la présente invention concerne un couteau pliable, du type comprenant:un manche dans lequel est formé un logement longitudinal, une lame pivotante dans la région d'une extrémité du logement, des moyens de blocage agencés pour immobiliser la lame par rapport au manche en une position ouverte ou dépliée et une position fer­mée ou repliée, dans laquelle la lame est reçue dans ledit logement, caractérisé en ce que les moyens de blocage comprennent au moins un doigt en saillie à partir d'un bord latéral de la lame dans la région de son pivotement, agencé pour coopérer avec un refoncement formé dans une sur­face associée du manche, et en ce que le logement sépare le manche en deux parties sensiblement parallèles et relativement flexibles fixées l'une à l'autre à l'extrémité du logement opposée à la région de pivote­ment, de telle sorte qu'un mouvement d'écartement des deux parties du manche provoque le dégagement du doigt de son renfoncement associé pour ainsi libérer la lame en rotation.To this end, the present invention relates to a folding knife, of the type comprising: a handle in which a longitudinal housing is formed, a pivoting blade in the region of one end of the housing, locking means arranged to immobilize the blade relative to the handle in an open or unfolded position and a closed or folded position, in which the blade is received in said housing, characterized in that the locking means comprise at least one finger projecting from a lateral edge of the blade in the region of its pivoting, arranged to cooperate with a recess formed in an associated surface of the handle, and in that the housing separates the handle into two substantially parallel and relatively flexible parts fixed to each other at the end of the housing opposite the pivot region, so that a movement of separation of the two parts of the handle causes the release of the finger from its associated recess so as to release the blade in rotation.

L'invention sera mieux comprise à la lecture de la des­cription détaillée suivante, donnée à titre d'exemple et faite en réfé­rence aux dessins annexés, sur lesquels :

  • - la figure 1 est une vue en perspective éclatée d'une première forme de réalisation d'un couteau selon l'invention.
  • - la figure 2 est une vue de côté du couteau de la figure 1,
  • - la figure 3 est une vue de dessus du couteau des figures 1 et 2,
  • - la figure 4 est une vue de perspective éclatée d'une seconde forme de réalisation d'un couteau selon l'invention,
  • - la figure 5 est une vue de côté du couteau de la figure 4, et
  • - la figure 6 est une vue du dessus du couteau des figures 4 et 5.
The invention will be better understood on reading the following detailed description, given by way of example and made with reference to the appended drawings, in which:
  • - Figure 1 is an exploded perspective view of a first embodiment of a knife according to the invention.
  • FIG. 2 is a side view of the knife of FIG. 1,
  • FIG. 3 is a top view of the knife of FIGS. 1 and 2,
  • FIG. 4 is an exploded perspective view of a second embodiment of a knife according to the invention,
  • FIG. 5 is a side view of the knife of FIG. 4, and
  • - Figure 6 is a top view of the knife of Figures 4 and 5.

En référence tout d'abord aux figures 1 à 3, un couteau pliable selon une première forme de l'invention comprend un manche, globalement indiqué en 10 et formé de deux parties parallèles 12,14 fi­xées ensembes à l'une de leurs extrémités (à gauche sur les figures 1 à 3) par l'intermédiaire d'un élément 16 formant entretoise, de manière à ce que soit défini entre elles un logement sensiblement parallèlépipèdique 18. La fixation pourra être effectuée par rivets ou par tout autre moyen. Dans la présente forme de réalisation, l'entretoise 16 présente la forme d'une plaquette rectangulaire à partir de laquelle s'étend, sensiblement parallèlement aux parties 12, 14, une barrete souple 16 a analogue à une barrette d'accrochage de stylo conventionnelle, qui permettra avanta­geusement de ranger le couteau dans une poche à la manière d'un stylo.Referring firstly to Figures 1 to 3, a folding knife according to a first form of the invention comprises a handle, generally indicated at 10 and formed of two parallel parts 12,14 fixed together at one of their ends ( on the left in FIGS. 1 to 3) by means of an element 16 forming a spacer, so that a substantially parallelepipedal housing 18 is defined between them. The fixing may be carried out by rivets or by any other means. In the present embodiment, the spacer 16 has the shape of a rectangular plate from which extends, substantially parallel to the parts 12, 14, a flexible bar 16 a similar to a conventional pen hanging bar. , which will advantageously store the knife in a pocket like a pen.

A l'extrémité opposée des parties 12,14 du manche est montée pivotante une lame, globalement indiquée en 20. A cet égard, la partie 14 du manche comporte sur sa face intérieure un axe de pivotement transversal 22 qui traverse un trou circulaire 24 prévu à l'extrémité côté pivotement de la lame 20, et dont l'extrémité libre est reçue dans un second trou circulaire 26 ménagé en vis-à-vis dans la partie 12 du manche.At the opposite end of the parts 12, 14 of the handle is pivotally mounted a blade, generally indicated at 20. In this respect, the part 14 of the handle has on its inner face a transverse pivot axis 22 which passes through a circular hole 24 provided at the end on the pivoting side of the blade 20, and the free end of which is received in a second circular hole 26 formed opposite in the part 12 of the handle.

Le couteau comporte en outre des moyens de blocage de la lame 20 dans des positions ouverte et fermée, respectivement. Ces moyens de blocage comprennent, sur la face latérale de la lame 20 tour­née vers la partie 12 du manche 10, un premier doigt cylindrique 28 en saillie situé entre le trou 24 et l'extrémité intérieure (indiquée en 20 a) de la lame 20, ainsi qu'un second doigt 30 également cylindrique, mais dont l'extrémité libre est conformée en biseau. Le second doigt 30 est en une position sensiblement symétrique du premier doigt 28 par rapport au trou 24. Les moyens de blocage comprennent en outre un décrochement 32 formé dans la face intérieure de la partie 12 de la lame 10. Sensiblement au centre du décrochement 32 est formé en trou 34, d'un diamètre sensi­blement égal à celui des doigts 28,30 et disposé de manière à être en vis-à-vis soit du doigt 28, soit du doigt 30, selon que la lame est en position ouverte ou fermée, respectivement. A cet égard, il faut citer qu'à des fins d'illustration, la lame 20 et la partie 14 du couteau sont représentées deux fois sur la vue éclatée de la figure 1, la lame 20 étant représentée en position ouverte et fermée.The knife further comprises means for blocking the blade 20 in the open and closed positions, respectively. These locking means comprise, on the lateral face of the blade 20 facing the part 12 of the handle 10, a first cylindrical finger 28 in projection located between the hole 24 and the inner end (indicated in 20 a) of the blade 20, as well as a second finger 30 also cylindrical, but whose free end is bevel shaped. The second finger 30 is in a position substantially symmetrical with the first finger 28 relative to the hole 24. The locking means further comprise a recess 32 formed in the inner face of the part 12 of the blade 10. Substantially at the center of the recess 32 is formed as a hole 34, of a diameter substantially equal to that of the fingers 28.30 and arranged so as to be opposite either the finger 28 or the finger 30, depending on whether the blade is in the open position or closed, respectively. In this regard, it should be mentioned that for purposes of illustration, the blade 20 and the part 14 of the knife are shown twice in the exploded view of Figure 1, the blade 20 being shown in the open and closed position.

Notons en outre que le couteau une fois assemblé se présente sous la forme d'un ensemble relativement rigide, l'extrémité de pivotement de la lame 20 étant fermement pincée entre les deux parties 12,14 du manche. En outre, l'épaisseur transversale de ladite extrémité de pivotement de la lame 20 est à cet égard sensiblement égale à celle de l'entretoise 16, de manière à ce que les deux parties 12,14 du man­che s'étendent parallèlement l'une à l'autre.Note also that the knife once assembled is in the form of a relatively rigid assembly, the pivot end of the blade 20 being firmly pinched between the two parts 12,14 of the handle. In addition, the transverse thickness of said pivoting end of the blade 20 is in this respect substantially equal to that of the spacer 16, so that the two parts 12, 14 of the handle extend parallel one to the other.

L'utilisation du couteau selon cette première forme de réalisation est la suivante :
. En position fermée de la lame 20, l'extrémité du doigt 30 est enga­gée dans le trou 34 associé de la partie 12, et la lame est ainsi fermement immobilisée dans cette position. Lorsqu'il souhaite ouvrir le couteau, l'utilisateur chasse simplement la lame 20 vers l'extérieur (vers le bas de la figure 1) en exerçant une poussée vers le bas à l'aide d'un doigt sur la barrette 16a, le doigt 30, grâce à la conformation en biseau de son extrémité, n'offrant qu'une faible résistance à ce mouvement d'extrac­tion.The use of the knife according to this first embodiment is as follows:
. In the closed position of the blade 20, the end of the finger 30 is engaged in the associated hole 34 of the part 12, and the blade is thus firmly immobilized in this position. When he wishes to open the knife, the user simply drives the blade 20 outwards (downwards in FIG. 1) by pushing downwards using a finger on the bar 16a, the finger 30, thanks to the bevel conformation of its end, offering only a low resistance to this extraction movement.

On pourra avantageusement accroître l'amplitude de ce mou­vement d'extraction en donnant à la barrette 16a une forme cintrée vers l'extérieur, la poussée vers le bas étant alors exercée dans la région médiane de celle-ci. La lame peut alors être saisie par le dessous pour être amenée à pivoter dans le sens de la flèche 36 (figure 1) jusqu'à ce que le premier doigt 28 vienne buter sur le bord supérieur du décroche­ment 32. Les deux parties 12,14 du manche sont alors légèrement écartées à l'aide des doigts de manière à ce que le doigt 28 puisse tout d'abord glisser contre la face interne du décrochement 32, puis venir s'engager par son extrémité libre dans le trou associé 34, les parties 12,14 se rapprochant à nouveau l'une de l'autre par leur élasticité, et la lame 20 étant ainsi fermement bloquée en position ouverte.The amplitude of this extraction movement can advantageously be increased by giving the bar 16a an outwardly curved shape, the downward thrust then being exerted in the central region thereof. The blade can then be grasped from below to be made to pivot in the direction of the arrow 36 (FIG. 1) until the first finger 28 comes up against the upper edge of the recess 32. The two parts 12,14 of the handle are then slightly separated with the fingers so that the finger 28 can first of all slide against the internal face of the recess 32, then come to engage by its free end in the associated hole 34, the parts 12, 14 again approaching one another by their elasticity, and the blade 20 thus being firmly locked in the open position.

Notons ici que l'objet du décrochement 32 est d'éviter qu'un trop grand effort d'écartement ne soit à exercer pour amener le doigt dans le trou 34.It should be noted here that the object of the offset 32 is to avoid that too great a spacing force is to be exerted to bring the finger into the hole 34.

On peut également noter, en particulier sur les figures 1 et 3, que la partie 12 du manche est légèrement plus courte que la par­tie 14, de telle sorte que, en position ouverte comme en position fer­mée, les mouvements du doigt,qui n'est pas en vis-à-vis du décrochement 32,ne soient pas entravés par ladite partie 12, ceux-ci ayant lieu au-­delà de l'extrémité correspondante de cette partie.It can also be noted, in particular in FIGS. 1 and 3, that the part 12 of the handle is slightly shorter than the part 14, so that, in the open position as in the closed position, the movements of the finger, which do not is not opposite the recess 32, are not hindered by said part 12, these taking place beyond the corresponding end of this part.

Pour refermer le couteau, de manière similaire, les par­ties 12,14 sont légèrement écartées, tout d'abord pour permettre de dé­gager le doigt 28 du trou 34 puis, après un pivotement approprié selon la flèche 38 (figure 1), d'insérer l'extrémité du doigt 30 dans le même trou 34.To close the knife, similarly, the parts 12, 14 are slightly apart, first of all to allow the finger 28 to be released from the hole 34 and then, after an appropriate pivoting according to the arrow 38 (FIG. 1), to insert the end of the finger 30 in the same hole 34.

L'on comprend ainsi que c'est la faible épaisseur même des deux parties 12,14 du manche, avantageuse du point de vue esthétique, qui leur permet de jouer le rôle d'organes de verrouillage flexibles, pour ainsi permettre de façon simple et très sûre une immobilisation tout à fait rigide de la lame 20 par rapport au manche 10 tant en posi­tion ouverte qu'en position fermée.It is thus understood that it is the very thin thickness of the two parts 12, 14 of the handle, advantageous from the aesthetic point of view, which allows them to play the role of flexible locking members, thereby enabling in a simple and very secure, completely rigid immobilization of the blade 20 relative to the handle 10 both in the open position and in the closed position.

Selon une varianté de cette première forme de réalisation, la barrette d'accrochage 16a pourra être conçue de telle sorte que l'écartement mutuel des parties 12,14, puisse être réalisé en enfonçant celle-ci entres lesdites parties, selon un mouvement similaire à celui destiné à l'extraction de la lame 20 à partir de la position fermée. A cet égard, la barrette pourra présenter, par exemple dans la région de son extrémité libre, une section transversale triangulaire ou trapézoida­le dont la plus grande largeur sera supérieure à la largeur du logement 18 s'étendant entre les deux parties 12,14.According to a variant of this first embodiment, the latching bar 16a can be designed so that the mutual spacing of the parts 12, 14 can be achieved by pushing it between said parts, in a movement similar to that intended for the extraction of the blade 20 from the closed position. In this regard, the bar may have, for example in the region of its free end, a triangular or trapezoidal cross section whose greatest width will be greater than the width of the housing 18 extending between the two parts 12,14.

Sur les figures 4 à 6 est représentée une seconde forme de réalisation de l'invention. Sur ces figures, des éléments identiques ou similaires à ceux des figures 1 à 3 portent les mêmes numéros de réfé­rence, et ne seront pas décrits à nouveau ici.In Figures 4 to 6 is shown a second embodiment of the invention. In these figures, elements identical or similar to those of Figures 1 to 3 bear the same reference numbers, and will not be described again here.

On peut noter que le couteau des figures 4 à 6 diffère de celui des figures 1 à 3 en ce que l'entretoise 16 ne comporte pas de prolongement en forme de barrette de stylo, mais présente la forme d'un élément oblong, entièrement interne au manche 10, agencé pour tenir lieu de butée de la lame 20 en position fermée (non illustrée), afin qu'une encoche 40 pour ongle, prévue dans la face de la lame 20 tournée vers la partie 14, déborde à l'extérieur du manche pour être apte à être utilisée pour l'ouverture. Bien entendu, le doigt en biseau 30 sera positionné sur la lame de manière à être engagé dans le trou 34 lorsque le couteau est dans cette position fermée à butée. Le cou­teau des figures 4 à 6 comporte en outre, à son extrémité éloignée de la région de pivotement, une boucle 42 destinée à son accrochage.It can be noted that the knife of Figures 4 to 6 differs from that of Figures 1 to 3 in that the spacer 16 does not include extension in the shape of a pen bar, but has the shape of an oblong element, entirely internal to the handle 10, arranged to act as a stop for the blade 20 in the closed position (not shown), so that a notch 40 for the nail , provided in the face of the blade 20 facing the part 14, projects outside the handle to be able to be used for opening. Of course, the bevelled finger 30 will be positioned on the blade so as to be engaged in the hole 34 when the knife is in this closed position at the stop. The knife of Figures 4 to 6 further comprises, at its end remote from the pivoting region, a loop 42 for its attachment.

Bien entendu, le manche et la lame pourront possèder des formes et des dimensions quelconques. En particulier, les parties 12 et/ou 14 du manche pourront présenter tout profil approprié dans la mesure où elles conservent la souplesse nécessaire à la manoeuvre des moyens de blocage. A cet égard, on peut observer sur les figures 1 et 4 que la partie 12 du manche présente une partie concave 44 qui a pour objet de rendre ladite partie plus souple, afin de faciliter son écarte­ment pour le déblocage de la lame, ainsi que d'alléger le couteau et de faciliter sa préhension.Of course, the handle and the blade may have any shape and size. In particular, the parts 12 and / or 14 of the handle may have any suitable profile insofar as they retain the flexibility necessary for the operation of the locking means. In this regard, it can be observed in FIGS. 1 and 4 that the part 12 of the handle has a concave part 44 which has the object of making said part more flexible, in order to facilitate its spacing for the release of the blade, as well as d '' lighten the knife and facilitate its gripping.

De plus, bien que l'on ait au cours de la description qui précède utilisé le terme "lame", pour l'élément pivotant 20, il est bien entendu que cet élément pourra prendre la forme de tout outil, ins­trument, spécialisé comme d'usage quotidien. En particulier, il pourra prendre la forme d'un couvert (fourchette, cuillère) avec un encombre­ment minimal avantageux notamment pour une utilisation en camping ou ana­logue. La forme du manche sera alors modifiée en conséquence pour être apte à recevoir l'extrémité libre du couvert en position repliée.In addition, although the term "blade" was used in the foregoing description, for the pivoting element 20, it is understood that this element may take the form of any tool, instrument, specialized as d 'Daily use. In particular, it may take the form of a cutlery (fork, spoon) with an advantageous minimum size, in particular for use in camping or the like. The shape of the handle will then be modified accordingly to be able to receive the free end of the cover in the folded position.

En outre, le couteau de l'invention pourra être consti­tué de tout matériau approprié, tel qu'acier inoxydable, laiton, avec le cas échéant un traitement de surface tel que placage de métal précieux, anodisation, ou encore bois, matériau plastique, etc.. Par ailleurs, on peut donner au couteau l'apparence d'un bijou en effectuant diverses in­crustations de pierres ou autres éléments précieux.In addition, the knife of the invention may be made of any suitable material, such as stainless steel, brass, with if necessary a surface treatment such as plating of precious metal, anodization, or even wood, plastic material, etc. .. In addition, one can give the knife the appearance of a jewel by carrying out various inlays of stones or other precious elements.

On peut noter enfin que le doigt 30 (figures 1 à 4) pourra être légèrement décalé en hauteur par rapport à l'axe 22 et à l'au­tre doigt 28, de telle sorte qu'en position repliée, la lame 20 déborde légèrement de son logement au-dessous du manche 10, ce qui facilite son extraction par exemple à l'aide de l'encoche 40 prévue dans la lame, qui sera ainsi rendue accessible.Finally, it can be noted that the finger 30 (FIGS. 1 to 4) may be slightly offset in height relative to the axis 22 and to the other finger 28, so that in the folded position, the blade 20 projects slightly from its housing below the handle 10, which facilitates its extraction for example using the notch 40 provided in the blade, which will thus be made accessible.

Claims (9)

1. Couteau pliable, du type comprenant un manche (10) dans lequel est formé un logement longitudinal (18), et une lame (20) pivotante dans la région d'une extrémité du logement, et des moyens de blocage agencés pour immobiliser la lame (20) par rapport au manche en une po­sition ouverte ou dépliée et une position fermée ou repliée, dans la­quelle la lame (20) est reçue dans ledit logement (18), caractérisé en ce que les moyens de blocage comprennent au moins un doigt (28,30) en saillie à partir d'un bord latéral de la lame (20) dans la région de son pivotement, agencé pour coopérer avec un renfoncement (34) formé dans une surface associée (32) du manche (10) et en ce que le logement (18) sépare le manche en deux parties (12,14) sensiblement parallèles et relativement flexibles fixées l'une à l'autre à l'extrémité du loge­ment opposée à la région de pivotement, de telle sorte qu'un mouvement d'écartement des deux parties (12,14) du manche provoque le dégagement du doigt (28,30) de son renfoncement associé (34) pour ainsi libérer la lame (20) en rotation.1. Foldable knife, of the type comprising a handle (10) in which a longitudinal housing (18) is formed, and a blade (20) pivoting in the region of one end of the housing, and blocking means arranged to immobilize the blade (20) relative to the handle in an open or unfolded position and a closed or folded position, in which the blade (20) is received in said housing (18), characterized in that the locking means comprise at least one finger (28,30) projecting from a lateral edge of the blade (20) in the region of its pivoting, arranged to cooperate with a recess (34) formed in an associated surface (32) of the handle (10) and in that the housing (18) separates the handle into two substantially parallel and relatively flexible parts (12,14) fixed to each other at the end of the housing opposite the pivot region, so that a movement of separation of the two parts (12,14) of the handle causes the release of the finger (28,30) from its r associated depression (34) to thereby release the blade (20) in rotation. 2. Couteau selon la revendication 1, caractérisé en ce que la surface (32) associée au renfoncement (34) du manche est formée en un décrochement par rapport à la surface intérieure du logement (18).2. Knife according to claim 1, characterized in that the surface (32) associated with the recess (34) of the handle is formed in a recess relative to the interior surface of the housing (18). 3. Couteau selon l'une quelconque des revendications 1 et 2, caracté­risé en ce que le renfoncement consiste en un trou traversant (34).3. Knife according to any one of claims 1 and 2, characterized in that the recess consists of a through hole (34). 4. Couteau selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens de blocage comprennent deux doigts en saillie (28,30).4. Knife according to any one of claims 1 to 3, characterized in that the locking means comprise two projecting fingers (28,30). 5. Couteau selon la revendication 4, caractérisé en ce qu'­au moins l'un des doigts (30) présente une extrémité libre en forme de biseau.5. Knife according to claim 4, characterized in that at least one of the fingers (30) has a free end in the form of a bevel. 6. Couteau selon la revendication 5, caractérisé en ce qu'il comprend en outre des moyens flexibles (16a) s'étendant à partir de la région de fixation desdites parties (12,14) du manche sensiblement parallèlement à ces dernières vers la région de pivotement, et agencés pour être déformés élastiquement vers l'intérieur du logement pour ainsi chasser la lame (20), alors en position repliée à l'intérieur du logement, et l'extraire partiellement dudit logement afin qu'elle puisse être saisie pour être amenée en position dépliée.6. Knife according to claim 5, characterized in that it further comprises flexible means (16a) extending from the region of attachment of said parts (12,14) of the handle substantially parallel to the latter towards the region pivot, and arranged to be elastically deformed towards the inside of the housing so as to drive the blade (20), then in the folded position inside the housing, and partially extract it from said housing so that it can be grasped to be brought into the unfolded position. 7. Couteau selon la revendication 6, caractérisé en ce que les moyens flexibles (16a) comportent au moins une partie dont la largeur est supérieure à celle dudit logement (18).7. Knife according to claim 6, characterized in that the flexible means (16a) comprise at least one part whose width is greater than that of said housing (18). 8. Couteau selon l'une quelconque des revendications 6 et 7, carac­térisé en ce que les moyens flexibles (16a) présentent la forme d'une pince d'accrochage de stylo.8. Knife according to any one of claims 6 and 7, characterized in that the flexible means (16a) have the shape of a pen clip. 9. Couteau selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le manche (10) est unitaire avec le corps d'un instrument d'écriture.9. Knife according to any one of claims 1 to 9, characterized in that the handle (10) is unitary with the body of a writing instrument.
EP86400330A 1984-12-20 1986-02-17 Folding knife Withdrawn EP0233416A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8419503A FR2575103B1 (en) 1984-12-20 1984-12-20 FOLDABLE KNIFE
EP86400330A EP0233416A1 (en) 1986-02-17 1986-02-17 Folding knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86400330A EP0233416A1 (en) 1986-02-17 1986-02-17 Folding knife

Publications (1)

Publication Number Publication Date
EP0233416A1 true EP0233416A1 (en) 1987-08-26

Family

ID=8196271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400330A Withdrawn EP0233416A1 (en) 1984-12-20 1986-02-17 Folding knife

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EP (1) EP0233416A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE26151C (en) * böntgen & SABIN in Solingen Pocket knife raw Device for holding the blade in the open and closed position
FR1063962A (en) * 1952-08-11 1954-05-10 Latama Cutlery Mechanical penknife
FR1105832A (en) * 1954-07-30 1955-12-08 Locking system for folding knife blades
US2798290A (en) * 1956-10-10 1957-07-09 William E Bassett Combined tool
FR2151811A5 (en) * 1971-09-01 1973-04-20 Gerling Ernst

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE26151C (en) * böntgen & SABIN in Solingen Pocket knife raw Device for holding the blade in the open and closed position
FR1063962A (en) * 1952-08-11 1954-05-10 Latama Cutlery Mechanical penknife
FR1105832A (en) * 1954-07-30 1955-12-08 Locking system for folding knife blades
US2798290A (en) * 1956-10-10 1957-07-09 William E Bassett Combined tool
FR2151811A5 (en) * 1971-09-01 1973-04-20 Gerling Ernst

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