EP3067169B1 - Knife with hinged blade provided with an improved locking ferrule - Google Patents

Knife with hinged blade provided with an improved locking ferrule Download PDF

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Publication number
EP3067169B1
EP3067169B1 EP16159204.3A EP16159204A EP3067169B1 EP 3067169 B1 EP3067169 B1 EP 3067169B1 EP 16159204 A EP16159204 A EP 16159204A EP 3067169 B1 EP3067169 B1 EP 3067169B1
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Prior art keywords
ferrule
handle
rotating
fixed
blade
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EP16159204.3A
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German (de)
French (fr)
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EP3067169A1 (en
Inventor
Denis Opinel
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Opinel
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Opinel
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    • 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
    • B26B1/04—Hand knives with adjustable blade; Pocket knives with pivoted blade lockable in adjusted position

Definitions

  • the present invention relates to a knife having a handle and a hinged blade on the handle, retractable in an interior space of the latter, and capable of being deployed for use substantially in the longitudinal axis of the handle.
  • each respective ferrule allows the passage of the blade from the folded position (in the handle) to the deployed position and vice versa.
  • the user rotates the rotating shell, which makes the proximal portion of the blade (towards the handle) against the distal periphery of the shell, preventing the pivoting of the blade and thus maintaining it in position.
  • knives known of the above type usually have a peripheral bead, creating a concavity groove turned inward, and complementary to the rivet head (constituting the hinge axis of the blade) protruding beyond the fixed ferrule.
  • the invention overcomes these drawbacks and proposes a knife of the type mentioned in the preamble and whose rotating shell comprises means intended on the one hand to improve the rotation of the rotating shell relative to the fixed shell, and on the other hand to strengthen the maintenance of the rotating shell, without affecting the economic conditions of manufacture or handling of the shell, and these means according to the invention being revealed more discreet.
  • the knife provided with a handle and a blade mounted to rotate at one end of the handle, between a deployed position out of the handle and in alignment thereof, and a folded position in a space provided in the handle, a rotating shell disposed at the end of the handle at the axis of rotation of the blade, and adapted to turn on itself along the longitudinal axis of the handle, said rotating ferrule being formed of a split ring and being provided with means for guiding and holding the ferrule, is characterized in that said guiding and holding means comprise on the one hand a male guiding element, projecting and disposed on the rotating shell, directed towards the inside thereof, and on the other hand a female fixed guiding element disposed on the handle or on an organ fixed on the latter, the female fixed guide element being of complementary shape and being adapted to receive and guide said protruding guide element.
  • Said female fixed guide element is advantageously formed of a groove, circular in shape for a circular section handle.
  • the knife further comprises a fixed ferrule fitted at the end of the handle and traversed by the axis of articulation of the blade on the handle, the respectively fixed and rotating ferrules being arranged concentrically.
  • the female fixed guide element (such as the circular guide groove) is provided on the latter, and preferably through the thickness of the fixed ferrule.
  • the male element is made by deformation, for example by stamping, of a part of the wall of the rotating shell.
  • This arrangement allows the displacement of the projecting element in the groove, with slight friction without, however, hindering the rotation of the rotating shell.
  • the groove on the fixed ferrule is in a circular arc extends between 80 ° and 140 °, and preferably between 100 and 120 °, and even more preferably 110 °.
  • the rotating shell has a notch on the distal peripheral edge (facing the blade), at the end of the slot, and on one side of the slot.
  • the distal notch is bevel-shaped according to a rectilinear inclined segment, of a length following an arc of a circle of between 15 ° and 45 ° and preferably of about 30 °.
  • the fixed ferrule further comprises a notch in the proximal peripheral portion (towards the handle) on one side of the slot.
  • This proximal notch is shaped shoulder substantially rectangular or trapezoidal shape, and advantageously ends with a straight portion parallel to said axis of rotation of the rotating shell.
  • distal and proximal describe, in the context of normal use of the knife held by the hand by a user, positions relative to the user. , the proximal qualifier being closer to the user.
  • the Figure 1A represents the knife of the invention, seen from the side, the blade being in the deployed position, that is to say substantially in the longitudinal axis of the knife.
  • the Figure 1B shows the same knife, in perspective, on a reduced scale, the blade being folded in the handle.
  • the knife 1 of the invention comprises a handle 2 and a blade 3 mounted articulated on the handle, along a diametrical transverse axis, between a first position where the blade is deployed and ready for use, as shown in FIG. Figure 1A and a folded position out of use, as shown on the Figure 1B , where the blade 3 is disposed in the handle 2, and more precisely in a longitudinal slot of the latter.
  • the handle is generally cylindrical. It is either wood or thermoformable plastic material.
  • a locking system 4 of the blade described later, and having a fixed ferrule and a rotating shell.
  • the distal end of the handle 2 comprises a portion 5 of smaller diameter provided with a longitudinal slot 6. Said end portion 5 is provided with two through holes 5A and 5B diametrically opposite, in the middle of the portion 5.
  • the blade 3 At its proximal end, the blade 3 has a heel 3A ( figure 2 ) provided with a through hole (which is not visible), and in which is intended to penetrate the slot 6 of the narrowed portion 5 of the handle.
  • a ferrule 8 called fixed ferrule, consisting of a split ring shown in perspective on the figure 3 , is advanced in abutment against the shoulder 7 of the handle. Then, the tenon 5 of the handle 2 is penetrated into the shell 8 until it abuts against the shoulder 7 of the narrowed portion 5.
  • the fixed shell 8 has a longitudinal slot 9 and two through holes 10 and 11 diametrically opposite substantially in the middle of the ring.
  • the fixed ferrule 8 is put on the blade 3 to overlap the latter, and then the fixed ferrule 8 is slid until it covers the narrowed end portion 5.
  • the ferrule 8 is fitted with friction on the end portion of the handle.
  • the blade 3, thus articulated on the handle 2, via the rivet 12, is adapted to pivot about the axis formed by the rivet, between the two extreme positions mentioned above, according to the Figures 1A and 1B .
  • a second shell 14 In order to block the blade 3, in one and / or the other of the two extreme positions, that is to say out of use, and in use, there is provided a second shell 14, called a rotating ferrule .
  • the rotating ferrule 14 consists of a split ring with a longitudinal slot 15. It has an inside diameter very slightly lower (in order to create a slight clamping for a running operation without play) to the outer diameter of the fixed shell 8.
  • the rotating shell 14 is intended to be arranged concentrically and to overlap the fixed ferrule 8, as shown in FIGS. Figures 1A , 1B and 8 .
  • the rotating shell is elastically deformed during its setting, and creates the mentioned clamping.
  • the rotating shell 14 can thus turn on itself, around the longitudinal axis of the knife 1, and around the fixed ferrule 8.
  • a bead 16 projecting outwards and of circular shape, is provided substantially in the middle of the rotating shell 14.
  • the shape and size of the bead define on the opposite face of the shell a groove for receiving the head 13 of the rivet 12.
  • the rotational guidance of the rotating shell relative to the fixed ferrule is optimally achieved, without the head 13 of the rivet on the one hand and the groove defined by the bead 16 on the other hand do not intervene in this regard.
  • the lug 18 and the slot or groove 17 are of complementary shape and size, so that the lug 18 can penetrate and slide along the arc defined by the groove 17, once the rotating shell 14 place concentrically around the fixed ferrule 8.
  • the fixed ferrule has an internal diameter of 13.5 mm
  • the groove 17 has a width, in the longitudinal direction of the knife, 1.5 to 2.5 mm, and preferably 2.2 mm, and a length in a circular arc between 10 and 20 mm, and preferably about 14 mm.
  • the lug 18 has a length in the circumferential direction of between 3 and 5 mm, preferably of the order of 4 mm.
  • the width of the lug 18, in the longitudinal direction of the knife, is very slightly less than the width of the groove 17.
  • “Very slightly lower” is understood to mean a difference of between 5 and 15%, preferably of order of 10%. In any case, this difference is such that it allows the sliding of the lug 18 in the light 17, without friction.
  • the Figure 5B shows a partial perspective view of the rotating shell 14.
  • the lug 18 is made by cutting and deformation of the wall of the rotating shell, and in particular by stamping or any known method of cold deformation.
  • the lug 18, thus made of material in the thickness of the shell has the shape of a U whose base 19 is in an arc of approximately 4 mm, and is extended to the wall of the shell by two inclined branches 20 and 21.
  • the deformation of the material constituting the wall of the rotating shell 14 to form the pin 18 has created an opening 22.
  • the rotating shell 14 can thus be rotated by the user, and guided in rotation by the cooperation of the head 13 of the rivet 12 with the groove defined by the bead 16, but especially by the cooperation between the pin 18 and the light 17 (the latter provided on the fixed ferrule 8).
  • the lug 18 and the light 17 also constitute, and above all, means enabling the accidental removal of the rotating shell 14 to be prevented.
  • the knife of the invention also comprises means for blocking the blade, in its two respective end positions, namely out of use ( Figure 1B ), and in use ( Figure 1A ).
  • This characteristic has an effect on the dimension of the groove 17 provided on the fixed ferrule 8, in particular on its length in the circumference. Indeed, the angular clearance of the rotating shell being limited, this limits the circumferential length of the groove 17. This greatly reduces the incidence of this groove on the rigidity and strength of the fixed ferrule 8.
  • the fixed 8 and rotating ferrules 14 and the rivet 12 are made of steel or stainless steel.

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

Description

La présente invention concerne un couteau comportant un manche et une lame articulée sur le manche, escamotable dans un espace intérieur de ce dernier, et susceptible d'être déployée pour utilisation sensiblement dans l'axe longitudinal du manche.The present invention relates to a knife having a handle and a hinged blade on the handle, retractable in an interior space of the latter, and capable of being deployed for use substantially in the longitudinal axis of the handle.

L'invention porte plus précisément sur un tel couteau pourvu :

  • d'une première virole, dite virole fixe, en forme de bague fendue, emmanchée à l'extrémité du manche et traversée par l'axe d'articulation de la lame sur le manche ;
  • une seconde virole, dite virole tournante, en forme de bague fendue, disposée de manière concentrique à la virole fixe (à l'extrémité du manche au niveau de l'axe de rotation de la lame), et apte à tourner sur elle-même, selon l'axe longitudinal du manche.
The invention relates more specifically to such a knife provided:
  • a first ferrule, said ferrule fixed, split ring-shaped, fitted at the end of the handle and traversed by the axis of articulation of the blade on the handle;
  • a second ferrule, called a rotating ferrule, in the form of a split ring, arranged concentrically with the fixed ferrule (at the end of the shaft at the axis of rotation of the blade), and able to turn on itself , along the longitudinal axis of the handle.

La fente prévue sur chaque virole respective permet le passage de la lame depuis la position repliée (dans le manche) vers la position déployée et inversement.The slot provided on each respective ferrule allows the passage of the blade from the folded position (in the handle) to the deployed position and vice versa.

Afin de bloquer la lame en position déployée d'utilisation, pour des raisons de sécurité, l'utilisateur fait tourner la virole tournante, ce qui fait porter la partie proximale de la lame (vers le manche) contre la périphérie distale de la virole, empêchant le pivotement de la lame et donc maintenant celle-ci en position.In order to block the blade in the deployed position of use, for safety reasons, the user rotates the rotating shell, which makes the proximal portion of the blade (towards the handle) against the distal periphery of the shell, preventing the pivoting of the blade and thus maintaining it in position.

Afin d'assurer le maintien de la virole et empêcher son enlèvement accidentel, les couteaux connus du type ci-dessus comportent usuellement un bourrelet périphérique, créant une gorge à concavité tournée vers l'intérieur, et complémentaire de la tête du rivet (constituant l'axe d'articulation de la lame) qui dépasse en saillie de la virole fixe.In order to maintain the ferrule and prevent its accidental removal, knives known of the above type usually have a peripheral bead, creating a concavity groove turned inward, and complementary to the rivet head (constituting the hinge axis of the blade) protruding beyond the fixed ferrule.

Bien que ce système ait fait ses preuves, on a cherché à l'améliorer.Although this system has proved its worth, attempts have been made to improve it.

Par exemple, on connait par le brevet FR 2 859 658 un couteau du type général décrit ci-dessus, et dont la virole tournante comporte une seconde gorge, espacée de la première gorge et coopérant avec un élément en saillie prévu sur la virole fixe.For example, we know by the patent FR 2,859,658 a knife of the general type described above, and whose rotating shell comprises a second groove, spaced from the first groove and cooperating with a projecting element provided on the fixed ferrule.

Ce dispositif, bien que tentant d'apporter une solution au problème évoqué, n'est pas exempt d'inconvénients.This device, although trying to provide a solution to the problem mentioned, is not free of drawbacks.

En effet, la présence de la seconde gorge :

  • complique la fabrication et la rend donc plus onéreuse ;
  • affecte esthétiquement l'aspect du couteau ;
  • affecte la solidité de la virole tournante ;
  • rend bien moins commode la préhension de la virole pour effectuer la manoeuvre de rotation de la virole tournante.
Indeed, the presence of the second throat:
  • complicates the manufacture and makes it more expensive;
  • aesthetically affects the appearance of the knife;
  • affects the strength of the rotating shell;
  • makes it much less convenient gripping the ferrule to perform the rotation maneuver of the rotating shell.

L'invention remédie à ces inconvénients et propose un couteau du type mentionné en préambule et dont la virole tournante comporte des moyens visant à d'une part améliorer la rotation de la virole tournante par rapport à la virole fixe, et d'autre part renforcer le maintien de la virole tournante, et ce sans affecter les conditions économiques de fabrication ni la manipulation de la virole, et ces moyens selon l'invention se révélant de plus discrets.The invention overcomes these drawbacks and proposes a knife of the type mentioned in the preamble and whose rotating shell comprises means intended on the one hand to improve the rotation of the rotating shell relative to the fixed shell, and on the other hand to strengthen the maintenance of the rotating shell, without affecting the economic conditions of manufacture or handling of the shell, and these means according to the invention being revealed more discreet.

A cette fin, selon l'invention, le couteau pourvu d'un manche et d'une lame montée à rotation à une extrémité du manche, entre une position déployée hors du manche et dans l'alignement de celui-ci, et une position repliée dans un espace prévu dans le manche, une virole tournante disposée à l'extrémité du manche au niveau de l'axe de rotation de la lame, et apte à tourner sur elle-même selon l'axe longitudinal du manche, la dite virole tournante étant formée d'une bague fendue et étant pourvue de moyens de guidage et de maintien de la virole, est caractérisé en ce que lesdits moyens de guidage et de maintien comportent d'une part un élément de guidage mâle, en saillie et disposé sur la virole tournante, dirigé vers l'intérieur de celle-ci, et d'autre part un élément de guidage fixe femelle, disposé sur le manche ou sur un organe fixé sur ce dernier, l'élément de guidage fixe femelle étant de forme complémentaire et étant apte à recevoir et guider ledit élément de guidage en saillie.To this end, according to the invention, the knife provided with a handle and a blade mounted to rotate at one end of the handle, between a deployed position out of the handle and in alignment thereof, and a folded position in a space provided in the handle, a rotating shell disposed at the end of the handle at the axis of rotation of the blade, and adapted to turn on itself along the longitudinal axis of the handle, said rotating ferrule being formed of a split ring and being provided with means for guiding and holding the ferrule, is characterized in that said guiding and holding means comprise on the one hand a male guiding element, projecting and disposed on the rotating shell, directed towards the inside thereof, and on the other hand a female fixed guiding element disposed on the handle or on an organ fixed on the latter, the female fixed guide element being of complementary shape and being adapted to receive and guide said protruding guide element.

Ledit élément de guidage fixe femelle est avantageusement formé d'une rainure, de forme circulaire pour un manche à section circulaire.Said female fixed guide element is advantageously formed of a groove, circular in shape for a circular section handle.

Dans une forme préférée, le couteau comporte en outre une virole fixe emmanchée à l'extrémité du manche et traversée par l'axe d'articulation de la lame sur le manche, les viroles respectivement fixe et tournante étant disposées de manière concentrique. Dans cette réalisation avec virole fixe, l'élément de guidage fixe femelle (telle que la rainure circulaire de guidage) est prévue sur cette dernière, et de préférence de manière traversante dans l'épaisseur de la virole fixe.In a preferred form, the knife further comprises a fixed ferrule fitted at the end of the handle and traversed by the axis of articulation of the blade on the handle, the respectively fixed and rotating ferrules being arranged concentrically. In this embodiment with a fixed ferrule, the female fixed guide element (such as the circular guide groove) is provided on the latter, and preferably through the thickness of the fixed ferrule.

Selon une caractéristique, l'élément mâle est réalisé par déformation, par exemple par estampage, d'une partie de la paroi de la virole tournante.According to one characteristic, the male element is made by deformation, for example by stamping, of a part of the wall of the rotating shell.

Par exemple :

  • l'élément en saillie présente une longueur (dans le sens de rotation de la virole tournante) de 2 à 6 mm (de préférence de 3 mm), et une largeur de 1,5 à 2 mm ;
  • la rainure, sur la virole fixe, présente une largeur et une profondeur supérieures à celles de l'élément en saillie, et plus précisément :
    1. 1. largeur de 5 à 20 % supérieure, et de préférence de l'ordre de 10% ;
    2. 2. épaisseur de 25 à 50% supérieure.
For example :
  • the protruding element has a length (in the direction of rotation of the rotating shell) of 2 to 6 mm (preferably 3 mm), and a width of 1.5 to 2 mm;
  • the groove, on the fixed shell, has a width and a depth greater than those of the projecting element, and more precisely:
    1. 1. width of 5 to 20% higher, and preferably of the order of 10%;
    2. 2. 25 to 50% greater thickness.

Par exemple :

  • la largeur de l'élément en saillie est de 2 mm, et la largeur de la rainure est de 2.2 mm pour la virole fixe ;
  • la profondeur de l'élément en saillie est de 0.8 mm et la profondeur de la rainure est de 1 mm à 1.2 mm.
For example :
  • the width of the protruding element is 2 mm, and the width of the groove is 2.2 mm for the fixed ferrule;
  • the depth of the projecting element is 0.8 mm and the depth of the groove is 1 mm to 1.2 mm.

Cette disposition permet le déplacement de l'élément en saillie dans la rainure, avec un léger frottement sans toutefois gêner la rotation de la virole tournante.This arrangement allows the displacement of the projecting element in the groove, with slight friction without, however, hindering the rotation of the rotating shell.

Dans cette forme de réalisation, la rainure sur la virole fixe est en arc de cercle en s'étend entre 80° et 140°, et de préféren ce entre 100 et 120°, et manière encore plus préférée de 110°.In this embodiment, the groove on the fixed ferrule is in a circular arc extends between 80 ° and 140 °, and preferably between 100 and 120 °, and even more preferably 110 °.

Avantageusement, la virole tournante comporte une encoche sur le bord périphérique distal (tourné vers la lame), au niveau de l'extrémité de la fente, et sur un seul côté de la fente.Advantageously, the rotating shell has a notch on the distal peripheral edge (facing the blade), at the end of the slot, and on one side of the slot.

Ceci permet de limiter la course de rotation de la virole tournante, entre deux positions extrêmes, d'ouverture pour le passage de la lame dans la fente, et de blocage de la lame en position déployée active. Ainsi, la longueur en arc de cercle de la rainure est limitée sur la rainure fixe, ce qui réduit les risques de fragilisation de cette dernière.This limits the rotational stroke of the rotating shell, between two extreme positions, opening for the passage of the blade in the slot, and blocking the blade in the active deployed position. So, the arcuate length of the groove is limited on the fixed groove, which reduces the risk of embrittlement of the latter.

L'encoche distale est en forme de biseau selon un segment incliné rectiligne, d'une longueur suivant un arc de cercle compris entre 15° et 45° et de préférence d'environ 30°.The distal notch is bevel-shaped according to a rectilinear inclined segment, of a length following an arc of a circle of between 15 ° and 45 ° and preferably of about 30 °.

Pour bloquer la lame en position repliée dans le manche, la virole fixe comporte en outre une encoche dans la partie périphérique proximale (vers le manche), sur un seul côté de la fente.To lock the blade in the folded position in the handle, the fixed ferrule further comprises a notch in the proximal peripheral portion (towards the handle) on one side of the slot.

Cette encoche proximale est en forme d'épaulement de forme sensiblement rectangulaire ou trapézoïdale, et se termine avantageusement par une partie rectiligne parallèle audit axe de rotation de la virole tournante.This proximal notch is shaped shoulder substantially rectangular or trapezoidal shape, and advantageously ends with a straight portion parallel to said axis of rotation of the rotating shell.

La présente invention est maintenant décrite à l'aide d'exemples uniquement illustratifs et nullement limitatifs de la portée de l'invention, et à partir des illustrations ci-jointes, dans lesquelles :

  • La figure 1A représente une vue de côté d'un couteau de l'invention, en position d'utilisation déployée de la lame ;
  • La figure 1B représente, à plus petite échelle, une vue en perspective du couteau de la figure 1A en position fermée ou repliée de la lame ;
  • La figure 2 est une vue de dessus, éclatée du couteau de la figure 1A ;
  • La figure 3 montre la virole fixe en perspective ;
  • La figure 4 montre la virole fixe de côté montée sur le manche ;
  • La figure 5A montre la virole tournante en perspective ;
  • La figure 5B montre la virole tournante de face ;
  • La figure 5C est une vue partielle en perspective de la virole tournante ;
  • La figure 6 est une vue en perspective des deux viroles placées concentriquement ;
  • La figure 7 est une vue de détail en coupe radiale, des moyens de guidage et de maintien de la virole tournante ;
  • La figure 8 est une vue partielle du couteau de la figure 1A, de face, montrant la virole fixe sur le manche, la lame étant déployée, la fente de la virole tournante en position de libération du passage de la lame ;
  • La figure 9 montre le couteau de la figure 8, la virole étant en position de blocage de la lame en position déployée.
The present invention is now described with the aid of examples which are only illustrative and in no way limit the scope of the invention, and from the attached illustrations, in which:
  • The Figure 1A represents a side view of a knife of the invention, in deployed use position of the blade;
  • The Figure 1B represents, on a smaller scale, a perspective view of the knife of the Figure 1A in the closed or folded position of the blade;
  • The figure 2 is a top view, exploded from the knife of the Figure 1A ;
  • The figure 3 shows the fixed ferrule in perspective;
  • The figure 4 shows the fixed side shell mounted on the handle;
  • The Figure 5A shows the rotating shell in perspective;
  • The Figure 5B shows the rotating shell of face;
  • The Figure 5C is a partial perspective view of the rotating shell;
  • The figure 6 is a perspective view of the two ferrules placed concentrically;
  • The figure 7 is a detail view in radial section, means for guiding and maintaining the rotating shell;
  • The figure 8 is a partial view of the knife of the Figure 1A , front, showing the ferrule fixed on the handle, the blade being deployed, the slot of the rotating shell in the release position of the passage of the blade;
  • The figure 9 shows the knife of the figure 8 , the ferrule being in the locking position of the blade in the deployed position.

Dans la suite de la description, les termes « distal » et « proximal » qualifient, dans le cadre d'un usage normal du couteau tenu à la main par un(e) utilisateur/trice, des positions relativement à l'utilisateur/trice, le qualificatif proximal étant au plus près de l'utilisateur.In the remainder of the description, the terms "distal" and "proximal" describe, in the context of normal use of the knife held by the hand by a user, positions relative to the user. , the proximal qualifier being closer to the user.

La figure 1A représente le couteau de l'invention, vue de côté, la lame étant en position déployée, c'est-à-dire sensiblement dans l'axe longitudinal du couteau. La figure 1B montre le même couteau, en perspective, à une échelle réduite, la lame étant repliée dans le manche.The Figure 1A represents the knife of the invention, seen from the side, the blade being in the deployed position, that is to say substantially in the longitudinal axis of the knife. The Figure 1B shows the same knife, in perspective, on a reduced scale, the blade being folded in the handle.

En référence à la figure 1A, le couteau 1 de l'invention comporte un manche 2 et une lame 3 montée articulée sur le manche, selon un axe transversal diamétral, entre une première position où la lame est déployée et prête à utilisation, comme montré sur la figure 1A et une position repliée hors utilisation, comme montré sur la figure 1B, où la lame 3 est disposée dans le manche 2, et plus précisément dans une fente longitudinale de ce dernier.With reference to the Figure 1A , the knife 1 of the invention comprises a handle 2 and a blade 3 mounted articulated on the handle, along a diametrical transverse axis, between a first position where the blade is deployed and ready for use, as shown in FIG. Figure 1A and a folded position out of use, as shown on the Figure 1B , where the blade 3 is disposed in the handle 2, and more precisely in a longitudinal slot of the latter.

Le manche est de forme générale cylindrique. Il est soit en bois, soit en matériau plastique thermo formable.The handle is generally cylindrical. It is either wood or thermoformable plastic material.

Au niveau de l'extrémité distale du manche 2, c'est-à-dire du côté de l'extrémité proximale de la lame 3, est prévu un système de blocage 4 de la lame, décrit ultérieurement, et comportant une virole fixe et une virole tournante.At the distal end of the handle 2, that is to say on the side of the proximal end of the blade 3, there is provided a locking system 4 of the blade, described later, and having a fixed ferrule and a rotating shell.

En référence à la figure 2, montrant de dessus une vue éclatée du couteau de la figure 1A, l'extrémité distale du manche 2 comporte une partie 5 de moindre diamètre pourvue d'une fente longitudinale 6. Ladite partie 5 d'extrémité est pourvue de deux trous traversants 5A et 5B diamétralement opposés, au milieu de la partie 5.With reference to the figure 2 , showing from above an exploded view of the knife of the Figure 1A , the distal end of the handle 2 comprises a portion 5 of smaller diameter provided with a longitudinal slot 6. Said end portion 5 is provided with two through holes 5A and 5B diametrically opposite, in the middle of the portion 5.

À son extrémité proximale, la lame 3 comporte un talon 3A (figure 2) pourvu d'un trou traversant (qui n'est pas visible), et dans lequel est destiné à pénétrer la fente 6 de la partie rétrécie 5 du manche.At its proximal end, the blade 3 has a heel 3A ( figure 2 ) provided with a through hole (which is not visible), and in which is intended to penetrate the slot 6 of the narrowed portion 5 of the handle.

La lame étant maintenue fixe, une virole 8, dite virole fixe, constituée d'une bague fendue montrée en perspective sur la figure 3, est avancée en butée contre l'épaulement 7 du manche. Ensuite, on fait pénétrer le tenon 5 du manche 2 dans la virole 8 jusqu'à venir en butée contre l'épaulement 7 de la partie rétrécie 5.The blade being held stationary, a ferrule 8, called fixed ferrule, consisting of a split ring shown in perspective on the figure 3 , is advanced in abutment against the shoulder 7 of the handle. Then, the tenon 5 of the handle 2 is penetrated into the shell 8 until it abuts against the shoulder 7 of the narrowed portion 5.

La virole fixe 8 comporte une fente longitudinale 9 et deux trous traversants 10 et 11 diamétralement opposés, sensiblement au milieu de la bague.The fixed shell 8 has a longitudinal slot 9 and two through holes 10 and 11 diametrically opposite substantially in the middle of the ring.

Une fois la lame 3 en place sur le manche 2, on enfile la virole fixe 8 sur la lame 3 pour chevaucher cette dernière, puis on fait glisser la virole fixe 8 jusqu'à ce qu'elle recouvre la partie terminale 5 rétrécie. La virole 8 est emmanchée avec frottement sur la partie 5 terminale du manche.Once the blade 3 in place on the handle 2, the fixed ferrule 8 is put on the blade 3 to overlap the latter, and then the fixed ferrule 8 is slid until it covers the narrowed end portion 5. The ferrule 8 is fitted with friction on the end portion of the handle.

Ensuite, on enfile un rivet 12 (à tête 13) tel qu'illustré sur la figure 2, successivement dans :

  • le premier trou traversant 10 de la virole 8, puis
  • le premier trou traversant 5A prévu dans la partie terminale 5,
  • le trou prévu dans lame 3,
  • le second trou 5B colinéaire prévu dans la partie 5, et
  • le trou 11 de la virole 8.
Then, we put on a rivet 12 (with head 13) as illustrated on the figure 2 , successively in:
  • the first through hole 10 of the ferrule 8, then
  • the first through hole 5A provided in the end portion 5,
  • the hole provided in blade 3,
  • the second collinear hole 5B provided in part 5, and
  • the hole 11 of the ferrule 8.

On aboutit ainsi à la position représentée sur la figure 4, montrant en partie le manche 2, à l'extrémité 5 duquel est disposée la virole fixe 8, d'où dépasse latéralement et radialement la tête 13 du rivet 12.This leads to the position represented on the figure 4 , partially showing the handle 2, at the end 5 of which is disposed the fixed ferrule 8, from which laterally and radially exceeds the head 13 of the rivet 12.

La lame 3, ainsi articulée sur le manche 2, par l'intermédiaire du rivet 12, est apte à pivoter autour de l'axe formé par le rivet, entre les deux positions extrêmes mentionnées précédemment, selon les figures 1A et 1B.The blade 3, thus articulated on the handle 2, via the rivet 12, is adapted to pivot about the axis formed by the rivet, between the two extreme positions mentioned above, according to the Figures 1A and 1B .

Afin de bloquer la lame 3, dans l'une et/ou l'autre des deux positions extrêmes, c'est-à-dire hors utilisation, et en cours d'utilisation, il est prévu une seconde virole 14, dite virole tournante.In order to block the blade 3, in one and / or the other of the two extreme positions, that is to say out of use, and in use, there is provided a second shell 14, called a rotating ferrule .

Cette dernière est représentée en perspective sur la figure 5A et de face sur la figure 6.The latter is represented in perspective on the Figure 5A and face on the figure 6 .

La virole tournante 14 est constituée d'une bague fendue avec une fente longitudinale 15. Elle présente un diamètre intérieur très légèrement inférieur (afin de créer un léger serrage pour un fonctionnement en rotation sans jeu) au diamètre extérieur de la virole fixe 8. La virole tournante 14 est destinée à être disposée de manière concentrique et à chevaucher la virole fixe 8, comme montré sur les figures 1A, 1B et 8. La virole tournante est déformée élastiquement lors de sa mise en pace, et crée le serrage mentionné.The rotating ferrule 14 consists of a split ring with a longitudinal slot 15. It has an inside diameter very slightly lower (in order to create a slight clamping for a running operation without play) to the outer diameter of the fixed shell 8. The rotating shell 14 is intended to be arranged concentrically and to overlap the fixed ferrule 8, as shown in FIGS. Figures 1A , 1B and 8 . The rotating shell is elastically deformed during its setting, and creates the mentioned clamping.

La virole tournante 14 peut ainsi tourner sur elle-même, autour de l'axe longitudinal du couteau 1, et autour de la virole fixe 8. Un bourrelet 16 en saillie vers l'extérieur et de forme circulaire, est prévu sensiblement au milieu de la virole tournante 14. La forme et la dimension du bourrelet définissent sur la face opposée de la virole une gorge destinée à accueillir la tête 13 du rivet 12.The rotating shell 14 can thus turn on itself, around the longitudinal axis of the knife 1, and around the fixed ferrule 8. A bead 16 projecting outwards and of circular shape, is provided substantially in the middle of the rotating shell 14. The shape and size of the bead define on the opposite face of the shell a groove for receiving the head 13 of the rivet 12.

Grâce aux moyens de l'invention, décrit ci-après en détail, le guidage en rotation de la virole tournante par rapport à la virole fixe est réalisé de manière optimale, sans que la tête 13 du rivet d'une part et la gorge définie par le bourrelet 16 d'autre part n'interviennent à cet égard.Thanks to the means of the invention, described hereinafter in detail, the rotational guidance of the rotating shell relative to the fixed ferrule is optimally achieved, without the head 13 of the rivet on the one hand and the groove defined by the bead 16 on the other hand do not intervene in this regard.

Selon l'invention, il est prévu des moyens permettant d'une part de sécuriser le maintien de la virole tournante, et d'autre part assurer un guidage optimal de cette dernière.According to the invention, there are provided means on the one hand to secure the maintenance of the rotating shell, and on the other hand to ensure optimal guidance of the latter.

En référence aux figures 2, 3, 5A et 5B, les dits moyens comportent :

  • sur la virole fixe 8, un élément femelle formée d'une lumière ou rainure 17 en arc de cercle ;
  • sur la virole tournante 14, un élément mâle en saillie vers l'intérieur de la virole, et formant un ergot 18.
With reference to Figures 2, 3, 5A and 5B , said means comprise:
  • on the fixed ferrule 8, a female element formed of a lumen or groove 17 in an arc of a circle;
  • on the rotating shell 14, a male element projecting towards the inside of the shell, and forming a pin 18.

L'ergot 18 et la lumière ou rainure 17 sont de forme et de dimensions complémentaires, de manière que l'ergot 18 puisse pénétrer et coulisser le long de l'arc de cercle défini par la rainure 17, une fois la virole tournante 14 en place de manière concentrique autour de la virole fixe 8.The lug 18 and the slot or groove 17 are of complementary shape and size, so that the lug 18 can penetrate and slide along the arc defined by the groove 17, once the rotating shell 14 place concentrically around the fixed ferrule 8.

À titre d'exemple, pour un couteau présentant une lame de longueur active de 85 mm et un manche de diamètre de 20 mm, la virole fixe a un diamètre intérieur de 13.5 mm, la rainure 17 présente une largeur, dans le sens longitudinal du couteau, de 1,5 à 2,5 mm, et de préférence de 2.2 mm, et une longueur en arc de cercle entre 10 et 20 mm, et de préférence d'environ 14mm.For example, for a knife having an active length blade of 85 mm and a handle diameter of 20 mm, the fixed ferrule has an internal diameter of 13.5 mm, the groove 17 has a width, in the longitudinal direction of the knife, 1.5 to 2.5 mm, and preferably 2.2 mm, and a length in a circular arc between 10 and 20 mm, and preferably about 14 mm.

Dans ce même exemple, l'ergot 18 présente une longueur dans le sens de la circonférence, comprise entre 3 à 5 mm, de préférence de l'ordre de 4 mm.In this same example, the lug 18 has a length in the circumferential direction of between 3 and 5 mm, preferably of the order of 4 mm.

La largeur de l'ergot 18, dans le sens longitudinal du couteau, est très légèrement inférieure à la largeur de la rainure 17. On entend par "très légèrement inférieure", une différence comprise entre 5 et 15 %, de préférence de l'ordre de 10 %. En toute hypothèse, cette différence est telle qu'elle permette le coulissement de l'ergot 18 dans la lumière 17, sans frottement.The width of the lug 18, in the longitudinal direction of the knife, is very slightly less than the width of the groove 17. "Very slightly lower" is understood to mean a difference of between 5 and 15%, preferably of order of 10%. In any case, this difference is such that it allows the sliding of the lug 18 in the light 17, without friction.

La figure 5B montre une vue partielle en perspective de la virole tournante 14. Selon un mode préféré de réalisation, l'ergot 18 est réalisé par découpe et déformation de la paroi de la virole tournante, et notamment par estampage ou tout procédé connu de déformation à froid.The Figure 5B shows a partial perspective view of the rotating shell 14. According to a preferred embodiment, the lug 18 is made by cutting and deformation of the wall of the rotating shell, and in particular by stamping or any known method of cold deformation.

L'ergot 18, ainsi venu de matière dans l'épaisseur de la virole, présente la forme d'un U dont la base 19 est en arc de cercle sur environ 4 mm, et est prolongée vers la paroi de la virole, par deux branches inclinées 20 et 21. La déformation de la matière constituant la paroi de la virole tournante 14, pour former l'ergot 18 a créé une ouverture 22.The lug 18, thus made of material in the thickness of the shell, has the shape of a U whose base 19 is in an arc of approximately 4 mm, and is extended to the wall of the shell by two inclined branches 20 and 21. The deformation of the material constituting the wall of the rotating shell 14 to form the pin 18 has created an opening 22.

On a représenté sur la figure 7, une vue en coupe diamétrale, montrant un détail du couteau, et particulièrement les deux viroles respectivement fixe 8 et tournante 14, au niveau de la coopération entre l'ergot 18 et la lumière 17.We have shown on the figure 7 , a diametral sectional view, showing a detail of the knife, and particularly the two respectively fixed 8 and rotating ferrules 14, at the level of the cooperation between the pin 18 and the light 17.

La virole tournante 14 peut ainsi être entraînée en rotation par l'utilisateur, et guidée en rotation par la coopération de la tête 13 du rivet 12 avec la gorge définie par le bourrelet 16, mais surtout par la coopération entre l'ergot 18 et la lumière 17 (cette dernière prévue sur la virole fixe 8).The rotating shell 14 can thus be rotated by the user, and guided in rotation by the cooperation of the head 13 of the rivet 12 with the groove defined by the bead 16, but especially by the cooperation between the pin 18 and the light 17 (the latter provided on the fixed ferrule 8).

L'ergot 18 et la lumière 17 constituent en outre et surtout des moyens permettant d'empêcher l'enlèvement accidentel de la virole tournante 14.The lug 18 and the light 17 also constitute, and above all, means enabling the accidental removal of the rotating shell 14 to be prevented.

Le couteau de l'invention comporte également des moyens de blocage de la lame, dans ses deux positions respectives d'extrémité, à savoir hors utilisation (figure 1B), et en cours d'utilisation (figure 1A).The knife of the invention also comprises means for blocking the blade, in its two respective end positions, namely out of use ( Figure 1B ), and in use ( Figure 1A ).

En référence aux figures 6, 8 et 9, la virole tournante 14 comporte :

  • Sur son bord d'extrémité distale c'est-à-dire vers la lame 3, un bord biseauté 23 constitué d'un segment sensiblement rectiligne incliné, et contre lequel est apte à porter (ou venir en butée) la lame 3 en position d'utilisation de cette dernière, comme montré sur la figure 9.
  • Sur son bord proximal, du côté du manche, un évidement 24 formant un épaulement 25 contre lequel est apte à porter (ou venir en butée) l'une des faces latérales de la lame 3, en position fermée hors utilisation.
With reference to figures 6 , 8 and 9 the rotating ferrule 14 comprises:
  • On its distal end edge, that is to say toward the blade 3, a bevelled edge 23 consisting of a substantially straight inclined segment, and against which is capable of carrying (or abutting) the blade 3 in position use of the latter, as shown on the figure 9 .
  • On its proximal edge, the side of the handle, a recess 24 forming a shoulder 25 against which is adapted to carry (or come into abutment) one of the side faces of the blade 3, in closed position out of use.

Il est à noter que la virole tournante 14 ne disposant du bord biseauté 23 (distal) que sur un seul côté de la fente 15, l'utilisateur est ainsi obligé de tourner la virole 14 dans un sens donné, en partant d'une position donnée.It should be noted that the rotating ferrule 14 having the beveled edge 23 (distal) only on one side of the slot 15, the user is thus obliged to turn the shell 14 in a given direction, starting from a position given.

Cette caractéristique a une incidence sur la dimension de la rainure 17 prévue sur la virole fixe 8, notamment sur sa longueur dans la circonférence. En effet, le débattement angulaire de la virole tournante étant limité, ceci permet de limiter la longueur en circonférence de la rainure 17. On réduit par là fortement l'incidence de cette rainure sur la rigidité et la résistance de la virole fixe 8.This characteristic has an effect on the dimension of the groove 17 provided on the fixed ferrule 8, in particular on its length in the circumference. Indeed, the angular clearance of the rotating shell being limited, this limits the circumferential length of the groove 17. This greatly reduces the incidence of this groove on the rigidity and strength of the fixed ferrule 8.

Les viroles fixe 8 et tournante 14 et le rivet 12 sont en acier ou en Inox®.The fixed 8 and rotating ferrules 14 and the rivet 12 are made of steel or stainless steel.

Claims (5)

  1. A knife provided with a handle and a blade rotatably mounted on a rivet traversing the handle, at one end thereof, between a deployed position out of the handle and in alignment thereof, and a position folded in a space provided in the handle, comprising a rotating ferrule, formed of a split ring and disposed at the end of the handle at the axis of rotation of the blade, and capable of rotating on itself according to the longitudinal axis of the handle, the knife further including a fixed ferrule fitted to the end of the handle and traversed by the hinge rivet of the blade on the handle, the ferrules, respectively fixed and rotating, being arranged concentrically, the rotating ferrule including, substantially in the middle thereof, an outwardly protruding bead of circular shape, the shape and size of the bead defining on the opposite face of the ferrule a groove intended for receiving the head of the rivet protruding with respect to the outer surface of the fixed ferrule, characterized in that it includes means for guiding and holding the rotating ferrule, including on the one hand a male guide element protruding and disposed on the rotating ferrule, produced by deformation, for example by stamping, of a portion of the wall of the rotating ferrule, directed inwardly thereof, and on the other hand a female fixed guide element, formed of a circular groove disposed on the handle or on a member fixed thereto, the groove being of complementary shape and being adapted to receive and guide said male element.
  2. The knife according to claim 1, characterized in that the protruding male element has a length, in the direction of rotation of the rotating ferrule, of 2 to 6 mm, preferably 3 mm, and a width of 1.5 to 2 mm, and in that the groove on the fixed ferrule has a width and a depth very slightly greater than those of the protruding element.
  3. The knife according to claim 1 or 2, characterized in that the groove on the fixed ferrule extends between 80° and 140° of the circumference of said ferrule, and preferably of the order of 110°.
  4. The knife according to any of claims 1 to 3, characterized in that the rotating ferrule includes a notch on the distal peripheral edge, facing the blade, at the end of the slot, and on only one side of the slot, and in that the distal notch is bevel-shaped according to a rectilinear inclined segment, of a length following a circular arc between 15° and 45°, and preferably of about 30°.
  5. The knife according to one of claims 1 to 4, characterized in that the fixed ferrule further includes a notch in the proximal peripheral portion, toward the handle, on one side of the slot, and in that said proximal notch is shoulder-shaped substantially rectangular or trapezoidal shaped, and ends with a rectilinear portion parallel to said axis of rotation of the rotating ferrule.
EP16159204.3A 2015-03-10 2016-03-08 Knife with hinged blade provided with an improved locking ferrule Active EP3067169B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1551983A FR3033513B1 (en) 2015-03-10 2015-03-10 ARTICULATED BLADE KNIFE PROVIDED WITH IMPROVED BLOCKING VIROLE

Publications (2)

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EP3067169A1 EP3067169A1 (en) 2016-09-14
EP3067169B1 true EP3067169B1 (en) 2018-05-09

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EP (1) EP3067169B1 (en)
ES (1) ES2682982T3 (en)
FR (1) FR3033513B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3134739B1 (en) * 2022-04-25 2024-03-15 Opinel Sas Accessory for gripping handle with rotating ferrule

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US684016A (en) * 1900-10-29 1901-10-08 Edward B Weidknecht Pocket-knife.
FR1525412A (en) * 1967-04-21 1968-05-17 Improvements to pocket knives, and the like, with rotating ferrule
FR2063532A5 (en) * 1969-10-21 1971-07-09 Opinel Joseph Cie
FR2102698A5 (en) * 1970-08-17 1972-04-07 Opinel Pere Et Fils
FR2142258A5 (en) * 1971-06-18 1973-01-26 Opinel Joseph Et Cie Ets
FR2859658B1 (en) 2003-09-11 2005-10-21 Facosa CLOSING KNIFE WITH A ROTATING RING FORMING AN IMPROVED GUIDE RING

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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FR3033513A1 (en) 2016-09-16
ES2682982T3 (en) 2018-09-24
EP3067169A1 (en) 2016-09-14
FR3033513B1 (en) 2017-09-01

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