EP4135932A1 - Combination of a sheath and a knife - Google Patents

Combination of a sheath and a knife

Info

Publication number
EP4135932A1
EP4135932A1 EP21709045.5A EP21709045A EP4135932A1 EP 4135932 A1 EP4135932 A1 EP 4135932A1 EP 21709045 A EP21709045 A EP 21709045A EP 4135932 A1 EP4135932 A1 EP 4135932A1
Authority
EP
European Patent Office
Prior art keywords
blade
sheath
knife
combination according
sharpening
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.)
Pending
Application number
EP21709045.5A
Other languages
German (de)
French (fr)
Inventor
Stéphane PLICHON
Stéphane SUCHET
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.)
SEB SA
Original Assignee
SEB SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP4135932A1 publication Critical patent/EP4135932A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
    • B24D15/084—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors the sharpening elements being fitted to knife sheaths, holders or handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/02—Guards or sheaths for knives
    • B26B29/025—Knife sheaths or scabbards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/54—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of hand or table knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
    • B24D15/081—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors with sharpening elements in interengaging or in mutual contact

Definitions

  • the present invention relates to the combination of a scabbard and a knife comprising a blade intended to be stored in the scabbard.
  • Document FR2715340 discloses a combination of a sharpening sheath and a knife equipped with a safety device making it possible to immobilize the knife in the sheath in order to prevent an accidental fall of the latter.
  • such a device has the disadvantage of having a safety device which is not very ergonomic, the user having to use both hands to unlock the knife.
  • the safety catch is placed in the most fragile part of the knife, that is to say at the edge of the blade which weakens it.
  • machining a safety catch in the most fragile part of the part is industrially delicate and therefore more difficult to carry out in the factory, the cutting part being a critical part of the knife.
  • it can interfere with sharpening because the safety catch can interfere with the movement of the blade during sharpening.
  • the present invention aims to overcome this drawback.
  • the technical problem underlying the invention consists in providing a combination of a sheath and a knife in which the sheath is equipped with a safety device, ensuring immobilization of the knife, which is ergonomic to use.
  • Another object of the invention is to provide a combination of a scabbard and a knife which is simple and ergonomic to produce.
  • the invention relates to a combination of a sheath and a knife comprising a blade intended to be stored in the sheath, in which the sheath comprises a cavity intended to receive the blade and an access opening. at one of the ends of the cavity, the sheath comprising, in its part lower, a device for receiving the cutting edge of the blade, characterized in that the sheath comprises, in its upper part, a locking element cooperating with a safety element provided on the back of the blade to immobilize the knife longitudinally in the sheath and in that the device for receiving the cutting edge of the blade is carried by an arm mounted movable in rotation in the sleeve, the sleeve comprising return means acting on the arm to return the device for receiving the cutting edge of the blade. blade towards the locking element.
  • Such a locking device has the advantage of ensuring that the knife is immobilized in the scabbard and of preventing accidental fall, especially when transporting the scabbard.
  • such a locking device has the advantage of providing very good ergonomics of use, the locking of the knife being carried out automatically under the effect of the thrust exerted by the return means when the safety element arrives at. height of the locking element when inserting the knife into the sheath. Unlocking the knife is also very ergonomic, by exerting downward pressure on the knife handle to disengage the locking element of the safety element from the back of the blade, then exerting a pull on the blade. the back of the blade.
  • Another advantage of the invention is that the locking device makes it possible to keep the knife integral in the sheath when handling the combination according to the invention, so a user gripping the assembly by the handle of the knife will not see the scabbard separate from the knife and vice versa.
  • Another advantage of the invention is that the locking mechanism of the knife is handled with the user's hands placed on the side of the blunt edge of the knife, whether this is to engage the mechanism or to trigger the mechanism.
  • the user's hands are advantageously placed on the side opposite the cutting edge, the support being on the blunt side.
  • the apparatus may further exhibit one or more of the following characteristics, taken alone or in combination.
  • the locking element and the safety notch are arranged such that the locking element engages in the safety element and immobilizes the knife in a storage position in which the entire blade is introduced into the sheath.
  • Such a feature has the advantage of providing great safety in use by immobilizing the knife in a position in which the blade is hidden by the sheath and is therefore not accessible to the user.
  • the safety member consists of a notch.
  • the sheath comprises a device for guiding the back of the blade advantageously arranged in the vicinity of the access opening.
  • Such a feature allows the back of the blade to be guided so as to facilitate the engagement of the locking element in the safety member.
  • the guide device comprises a groove for receiving the back of the blade and the locking element is formed by the bottom of the groove.
  • Such a feature has the advantage of ensuring, with the same element, the transverse guide of the blade and its longitudinal locking.
  • the receiving groove of the back of the blade has a V-shape.
  • Such a characteristic has the advantage of ensuring excellent guidance of the back of the blade in the sheath.
  • the device for receiving the cutting edge of the blade consists of a sharpening device.
  • the sharpening device is mounted so as to be able to rotate on the arm.
  • Such mobility of the sharpening device at the end of the arm allows the sharpening device to follow the curvature of the blade in order to always position itself with the same angle of attack with respect to the cutting edge of the blade, so that the sharpening of the blade is optimized regardless of the curvature of the latter.
  • the sharpening device comprises two sharpening elements arranged in V.
  • Such a feature allows for balanced sharpening on both sides of the blade.
  • the two sharpening elements are arranged in two offset planes parallel to each other and perpendicular to the longitudinal axis of the sheath.
  • the sharpening device is arranged adjacent to the access opening.
  • Such a feature makes it possible to sharpen the blade over substantially the entire length which is introduced into the sheath.
  • the return means comprise a return spring, preferably helical, interposed between the arm and a base of the sheath.
  • Such a construction has the advantage of being simple and economical to produce.
  • the sleeve comprises a base and a casing removably mounted on the base.
  • Such a feature makes it possible to simplify the cleaning of the inside of the sheath.
  • the arm comprises a first longitudinal end mounted so as to be able to rotate on a base.
  • the sharpening device is mounted mobile in rotation at a second longitudinal end of the arm.
  • the first longitudinal end is mounted to pivot on the base about a first axis and the sharpening device is mounted to pivot on the arm about a second axis, the first and second axes being parallels between them.
  • Figure 1 is a perspective view of a sheath and a knife according to a particular embodiment of the invention; the knife being shown on the outside of the scabbard.
  • Figure 2 is an exploded perspective view of the sleeve of Figure 1;
  • FIG. 3 is a perspective view of the sheath of FIG. 1 with the knife inserted into the sheath, the sheath being in this figure shown without its outer casing in order to allow visual access to the mechanism of the sheath;
  • Figure 4 is a longitudinal sectional view of the sheath and the knife in the position shown in Figure 3;
  • Figure 5 is a bottom view of the removable casing of the sheath
  • Figure 6 is another perspective view of the sheath of Figure 1 without its knife;
  • Figure 7 is a sectional view along the line VII-VII of Figure 4.
  • Figure 8 is an exploded perspective view of the sharpening device fitted to the sheath of Figure 1.
  • Figure 9 is a longitudinal sectional view of the sheath and the knife of Figure 1 in 3 positions: a) the knife inserted into the sheath b) the knife in a low position with compression of the spring c) the knife partially taken out of the scabbard.
  • Figure 10 is a side view with the hands of a user, positioned on the scabbard and the knife according to the invention, to remove the knife therefrom.
  • FIGS 1, 3 and 4 show a sharpener scabbard 1 and a kitchen knife 2 comprising a blade 20 intended to be stored in the scabbard 1, the knife 2 conventionally comprising a handle 21 which protrudes outside the scabbard 1 when the blade 20 is stored in the sheath 1.
  • the sleeve 1 comprises a base 3 and a casing 4 fixed one on the other, and advantageously made of plastic material.
  • the base 3 and the casing 4 have an elongated shape defining a cavity 40 intended to receive the blade 20 of the knife 2 for its storage, the sheath 1 having a rear end provided with an access opening 10 through which the blade 20 of the knife 2 can be introduced into the cavity 40.
  • the casing 4 has, upstream of the access opening 10, a guide skirt 41 which has walls which converge in the direction of the access opening 10 and make it possible to guide the tip of the blade 20 of the knife 1 towards the access opening 10.
  • the base 3 comprises a base 30 comprising a lower face intended to rest flat on a support and comprises a front end formed by a grid 31 which extends upwards from the base 30 forming an angle of the order of 65 ° relative to the underside of the base 30, the grid 31 closing the front end of the sleeve 1 and being advantageously obtained by molding with base 30.
  • the casing 4 is advantageously fixed in a removable manner on the base 3 and has a cross section in the shape of an inverted U, visible in FIG. 5, comprising, at each of its ends, a rib 42 which engages in a groove of guide 32 provided longitudinally on each of the sides of the base 30 of the base 3.
  • the sheath 1 comprises a device for guiding the upper part of the blade 20 of the knife 2, also called the back of the blade 20, comprising a guide piece 5 fixed inside the casing 4, at its curved part defining the top of the casing 4, the guide piece 5 extending in the longitudinal axis of the sleeve 1 from the open end of the sleeve 1 to the grid 31 defining the front end of sleeve 1.
  • the guide piece 5 comprises an opening 51 in the vicinity of its front end, in which engages a hook 45 carried by the casing 4, visible in Figures 2 and 4, the front end of the guide piece 5 comprising a head 52 which projects upwards and which engages in a suitable notch 44 formed at the front end of the casing 4.
  • the insertion of the hook 45 in the opening 51 and the The engagement of the head 52 in the notch 44 makes it possible to fix, in a removable manner, the front end of the guide part 5 to the front end of the casing 4.
  • the guide piece 5 is advantageously fixed to the rear end of the casing 4 by clipping, the rear end of the guide piece 5 comprising a centering ring 50 which is elastically engaged between two locking clips 43 protruding. on the edges of the access opening 10 of the sleeve 1.
  • the head 52 of the guide part 5 engages longitudinally in a notch 33 provided at the upper end of the grid 31 when the casing 4 is placed on the base. 3, the head 52 having an underside comprising a groove 53 in which elastically engages a locking tab 34 arranged at the base of the notch 33, making it possible to keep the casing 4 in position on the base 3.
  • the centering ring 50 has a groove 54 in the form of an inverted V ensuring the centering of the back in the blade 20 relative to the casing 4 when the blade 20 is inserted into the sheath 1.
  • the sheath 1 comprises, facing the centering ring 50, a sharpening device 6 advantageously carried by an arm 7 pivotally mounted on the base 3, the sharpening device 6 being returned in the direction of the ring centering 50 by a return spring 8 acting on the arm 7.
  • the arm 7 is movable in the plane of the blade 20 between a high position where the return spring 8 is deployed to its maximum and a low position where the return spring 8 is compressed to its maximum.
  • the arm 7 has a first end, called the front end, pivotally mounted in the vicinity of the front end of the base 3, by means of a first axis 71 extending perpendicularly to the longitudinal direction of the base 3.
  • the first axis 71 is supported by two side partitions 35 extending vertically on either side of the front end of the arm 7, these side partitions 35 contributing to the rigidity of the connection between the base 30 and the grid 31.
  • the arm 7 has a second end, called the rear end, on which the sharpening device 6 is preferably mounted so as to pivot about a second axis 72 extending parallel to the first axis 71, the device being able to pivot relative to the arm. 7 over an angular range of at least 15 ° and preferably of the order of 30 °.
  • the arm 7 comprises two lateral tabs 73 which protrude towards the rear of the arm 7 and between which the sharpening device 6 is disposed, the second axis 72 being advantageously formed by cylindrical pins. of circular section which project laterally from the sharpening device 6 and which are engaged in circular openings made in the lateral tabs 73.
  • the second axis 72 being advantageously formed by cylindrical pins. of circular section which project laterally from the sharpening device 6 and which are engaged in circular openings made in the lateral tabs 73.
  • the sharpening device 6 comprises a U-shaped body supporting two sharpening elements 60 arranged so as to form a V in a projection plane perpendicular to the longitudinal axis of the sleeve 1 , that is to say when the sharpening device 6 is seen in the direction of introduction of the blade 20 into the access opening 10 of the sheath 1, the two sharpening elements 60 being offset on the axis longitudinal of the sleeve 1 and each extending in a plane perpendicular to the longitudinal axis.
  • the two sharpening elements 60 are arranged in two housings 61 arranged to hold two sharpening elements 60 in the V-shaped arrangement, the device 6 comprising a slot 63, formed between the two U-shaped branches, freeing access to the space located between the two sharpening elements 60.
  • the two sharpening elements 60 are immobilized by friction inside their housing 61 thanks to the support of a part of the body of the sharpening device 6 , not visible in the figures, against the end of the sharpening element 60.
  • the sharpening elements 60 do not rotate in their housing 61, where then weakly, when they are subjected to the friction of the blade 20 during the introduction or extraction of the latter in the sheath 1.
  • the return spring 8 is a helical spring arranged between the base 3 and the underside of the arm 7, in the vicinity of the rear end of the arm 7.
  • the base 3 comprises a cup 36 for maintaining the lower end of the return spring 8
  • the underside of the arm 7 comprises a cup 74 for maintaining the upper end of the return spring 8, the cup 74 coming opposite the cup 36 when the arm 7 is brought in the direction of the base 3.
  • the back of the blade 20 of the knife 2 comprises a safety notch 22, preferably arranged in the vicinity of the handle 21 of the knife 2, in which a locking element 55 engages, consisting of the bottom of the groove. 54 when the entire blade 20 is inserted through the sheath 1, as illustrated in Figures 3 and 4.
  • a safety notch 22 preferably arranged in the vicinity of the handle 21 of the knife 2, in which a locking element 55 engages, consisting of the bottom of the groove. 54 when the entire blade 20 is inserted through the sheath 1, as illustrated in Figures 3 and 4.
  • the knife is first of all shown in the immobilized position (first position 9a) with the locking element 55 engaged in the safety notch 22.
  • the knife is then shown in the unlocked position (second position 9b), with the locking element 55 out of the safety notch 22 and the return spring 8 compressed.
  • the knife is finally shown in the released position (third position 9c), with the locking element 55 free and the safety notch 22 free,
  • This double positioning of the cutting part of the blade 20 and of the blade back 20 makes it possible to obtain a sharpening angle which remains symmetrical and constant throughout the path of the blade 20 in the sheath 1, without the user does not need to manually orient the blade 20.
  • the symmetry of the sharpening is guaranteed and the sharpening angles are equal on each side of the edge of the blade, which allows a uniform and centered wear of the blade. blade 20.
  • the pivoting movement of the arm 7 allows the sharpening device 6 to follow the profile of the cutting part of the blade 20, the device sharpening 6 exerting, under the effect of the return spring 8, a moderate pressure on the cutting part of the blade 20 when the tip of the blade is introduced into the access opening 10 of the sheath 1 then a pressure of increasingly important as the height of the blade 20 increases when the knife 2 is introduced into the sheath 1 (visible in Figures 9b and 9c).
  • the high friction between the cutting part of the blade 20 and the sharpening elements 60 causes blade 20 to be sharpened.
  • the sharpening elements being placed one behind the other, in the direction of introduction of the blade 20, the possible oscillation of the sharpening device 6 with respect to the second end of the arm 7 allows the sharpening elements 60 to remain in permanent contact with the blade 20 and to remain correctly oriented with respect to the latter, which makes it possible to optimize the sharpening of the blade 20.
  • the locking element 55 of the centering ring 50 is introduced into the safety notch 22 provided on the back of the blade 20, under the effect of return spring 8.
  • the knife 2 is then held securely in the sheath 1.
  • the user To extract the knife 2 from the sheath 1, as shown in figure 10, the user must first exert downward pressure on the handle 21 of the knife 2 to release the locking element 55 from the safety notch 22, then exert a traction on the handle 21 of the knife 2 to extract the blade 20.
  • Such manipulation prevents any accidental fall of the knife 2 which could occur for example when the sheath 1 is handled for its transport.
  • the sleeve 1 thus produced also has the advantage of allowing easy cleaning of the inside of the sleeve 1.
  • the user can easily disconnect the casing 4 from the base 3 while maintaining the base 3 with a hand, after having withdrawn the knife 2, then by exerting a traction on the casing 4 so that the groove 53 disengages, by elastic deformation of the head 52, the locking tab 34 arranged at the top of the grid 31 He can then slide the casing 4 on the base 3, each guide groove 32 of the base 3 having, on the side of the access opening 10, an open longitudinal end allowing the extraction of the rib 42 of the. envelope 4. After having cleaned the inside of the sleeve 1, he can reassemble the envelope 4 on the base 3 by performing the operations described above in reverse order.
  • the casing may not be removable from the base, the base and the casing of the sheath may for example be made in one piece.
  • the safety notch can be replaced by a safety element projecting from the back of the blade and cooperating with a locking notch provided on the upper part of the sheath.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Knives (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Disclosed is a combination of a sharpening sheath (1) and a knife (2) comprising a blade (20) intended to be reconditioned in the sheath (1), wherein the sheath (1) comprises a cavity (40) for receiving the blade (20) and an access opening (10) at one end of the cavity (40), the sheath (1) comprising, in the lower portion thereof, a device for receiving the cutting edge of the blade (20), characterized in that the sheath (1) has, in the upper portion thereof, a locking element (55) which cooperates with a safety element (22) provided on the back of the blade (20) to longitudinally immobilize the knife (2) in the sheath (1), and in that the device for receiving the cutting edge of the blade (20) is carried by an arm (7) rotatably mounted in the sheath (1), the sheath (1) comprising return means (8) acting on the arm (7) to return the device for receiving the cutting edge of the blade (20) towards the locking element (55).

Description

COMBINAISON D’UN FOURREAU ET D’UN COUTEAU COMBINATION OF A HOLDALL AND A KNIFE
Domaine technique Technical area
La présente invention se rapporte à la combinaison d’un fourreau et d’un couteau comprenant une lame destinée à être remisée dans le fourreau. Etat de la technique The present invention relates to the combination of a scabbard and a knife comprising a blade intended to be stored in the scabbard. State of the art
Il est connu du document FR2715340 une combinaison d’un fourreau aiguiseur et d’un couteau équipé d’un dispositif de sécurité permettant d’immobiliser le couteau dans le fourreau afin d’éviter une chute accidentelle de ce dernier.Document FR2715340 discloses a combination of a sharpening sheath and a knife equipped with a safety device making it possible to immobilize the knife in the sheath in order to prevent an accidental fall of the latter.
Cependant, un tel dispositif présente l’inconvénient de comporter un dispositif de sécurité qui est peu ergonomique, l’utilisateur devant utiliser ses deux mains pour déverrouiller le couteau. En effet, le cran de sécurité est disposé dans la partie la plus fragile du couteau, c’est-à-dire au niveau du tranchant de la lame ce qui la fragilise. A cela s’ajoute le fait qu'usiner un cran de sécurité dans la partie la plus fragile de la pièce est délicat au niveau industriel et donc plus difficilement réalisable en usine, la partie tranchante étant une partie critique du couteau. De plus cela peut perturber l’affûtage car le cran de sécurité peut gêner le mouvement de la lame lors de son affûtage. However, such a device has the disadvantage of having a safety device which is not very ergonomic, the user having to use both hands to unlock the knife. Indeed, the safety catch is placed in the most fragile part of the knife, that is to say at the edge of the blade which weakens it. Added to this is the fact that machining a safety catch in the most fragile part of the part is industrially delicate and therefore more difficult to carry out in the factory, the cutting part being a critical part of the knife. In addition, it can interfere with sharpening because the safety catch can interfere with the movement of the blade during sharpening.
Résumé de l’invention La présente invention vise à remédier à cet inconvénient. Summary of the Invention The present invention aims to overcome this drawback.
Le problème technique à la base de l’invention consiste à proposer une combinaison d’un fourreau et d’un couteau dans laquelle le fourreau est équipé d’un dispositif de sécurité, assurant une immobilisation du couteau, qui soit ergonomique à utiliser. Un autre but de l’invention est de proposer une combinaison d’un fourreau et d’un couteau qui soit simple et ergonomique à réaliser. The technical problem underlying the invention consists in providing a combination of a sheath and a knife in which the sheath is equipped with a safety device, ensuring immobilization of the knife, which is ergonomic to use. Another object of the invention is to provide a combination of a scabbard and a knife which is simple and ergonomic to produce.
A cet effet, l'invention a pour objet une combinaison d'un fourreau et d'un couteau comprenant une lame destinée à être remisée dans le fourreau, dans lequel le fourreau comprend une cavité destinée à recevoir la lame et une ouverture d’accès à l’une des extrémités de la cavité, le fourreau comportant, dans sa partie inférieure, un dispositif de réception du bord tranchant de la lame, caractérisé en ce que le fourreau comporte, dans sa partie supérieure, un élément de verrouillage coopérant avec un élément de sécurité ménagé sur le dos de la lame pour immobiliser longitudinalement le couteau dans le fourreau et en ce que le dispositif de réception du bord tranchant de la lame est porté par un bras monté mobile en rotation dans le fourreau, le fourreau comprenant des moyens de rappel agissant sur le bras pour ramener le dispositif de réception du bord tranchant de la lame en direction de l’élément de verrouillage. To this end, the invention relates to a combination of a sheath and a knife comprising a blade intended to be stored in the sheath, in which the sheath comprises a cavity intended to receive the blade and an access opening. at one of the ends of the cavity, the sheath comprising, in its part lower, a device for receiving the cutting edge of the blade, characterized in that the sheath comprises, in its upper part, a locking element cooperating with a safety element provided on the back of the blade to immobilize the knife longitudinally in the sheath and in that the device for receiving the cutting edge of the blade is carried by an arm mounted movable in rotation in the sleeve, the sleeve comprising return means acting on the arm to return the device for receiving the cutting edge of the blade. blade towards the locking element.
Un tel dispositif de verrouillage présente l’avantage d’assurer l’immobilisation du couteau dans le fourreau et d’éviter la chute accidentelle, notamment lors du transport du fourreau. Such a locking device has the advantage of ensuring that the knife is immobilized in the scabbard and of preventing accidental fall, especially when transporting the scabbard.
De plus, un tel dispositif de verrouillage présente l’avantage de procurer une très bonne ergonomie d’utilisation, le verrouillage du couteau étant réalisé automatiquement sous l’effet de la poussée exercée par les moyens de rappel lorsque l’élément de sécurité arrive à hauteur de l’élément de verrouillage lors de l’introduction du couteau dans le fourreau. Le déverrouillage du couteau s’effectue également de façon très ergonomique, en exerçant une pression vers le bas sur le manche du couteau afin désengager l’élément de verrouillage de l’élément de sécurité du dos de la lame, puis en exerçant une traction sur le dos de lame. In addition, such a locking device has the advantage of providing very good ergonomics of use, the locking of the knife being carried out automatically under the effect of the thrust exerted by the return means when the safety element arrives at. height of the locking element when inserting the knife into the sheath. Unlocking the knife is also very ergonomic, by exerting downward pressure on the knife handle to disengage the locking element of the safety element from the back of the blade, then exerting a pull on the blade. the back of the blade.
Un autre avantage de l’invention est que le dispositif de verrouillage permet de maintenir solidaire le couteau dans le fourreau lors des manipulations de la combinaison selon l’invention, ainsi un utilisateur se saisissant de l’ensemble par le manche du couteau ne verra pas le fourreau se séparer du couteau et vice- versa. Another advantage of the invention is that the locking device makes it possible to keep the knife integral in the sheath when handling the combination according to the invention, so a user gripping the assembly by the handle of the knife will not see the scabbard separate from the knife and vice versa.
Un autre avantage de l’invention est que le mécanisme de verrouillage du couteau se manipule avec les mains de l’utilisateur placées du côté du bord non tranchant du couteau, que cela soit pour enclencher le mécanisme ou déclencher le mécanisme. Les mains de l’utilisateur sont avantageusement disposées du côté opposé du bord tranchant, l’appui se faisant du côté non tranchant. Au contraire avec les systèmes de sécurité connus, il faut placer sa main sous le manche du couteau, coté lame du couteau, pour déclencher la sécurité, avec un risque de se blesser. Another advantage of the invention is that the locking mechanism of the knife is handled with the user's hands placed on the side of the blunt edge of the knife, whether this is to engage the mechanism or to trigger the mechanism. The user's hands are advantageously placed on the side opposite the cutting edge, the support being on the blunt side. On the contrary with known safety systems, you have to place your hand under the handle of the knife, on the blade side of the knife, to trigger the safety, with a risk of injury.
L'appareil peut en outre présenter une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison. The apparatus may further exhibit one or more of the following characteristics, taken alone or in combination.
Selon une caractéristique avantageuse de l’invention, l’élément de verrouillage et l’encoche de sécurité sont disposés de telle sorte que l’élément de verrouillage s’engage dans l’élément de sécurité et immobilise le couteau dans une position de stockage dans laquelle l’intégralité de la lame est introduite dans le fourreau.According to an advantageous characteristic of the invention, the locking element and the safety notch are arranged such that the locking element engages in the safety element and immobilizes the knife in a storage position in which the entire blade is introduced into the sheath.
Une telle caractéristique présente l’avantage de procurer une grande sécurité d’utilisation en immobilisant le couteau dans une position dans laquelle la lame est masquée par le fourreau et n’est donc pas accessible à l’utilisateur. Such a feature has the advantage of providing great safety in use by immobilizing the knife in a position in which the blade is hidden by the sheath and is therefore not accessible to the user.
Selon une caractéristique avantageuse de l’invention, l’organe de sécurité est constitué par une encoche. According to an advantageous characteristic of the invention, the safety member consists of a notch.
Selon une caractéristique avantageuse de l’invention, le fourreau comporte un dispositif de guidage du dos de la lame avantageusement disposé au voisinage de l’ouverture d’accès. According to an advantageous characteristic of the invention, the sheath comprises a device for guiding the back of the blade advantageously arranged in the vicinity of the access opening.
Une telle caractéristique permet de guider le dos de lame de manière à faciliter l’engagement de l’élément de verrouillage dans l’organe de sécurité. Such a feature allows the back of the blade to be guided so as to facilitate the engagement of the locking element in the safety member.
Selon une caractéristique avantageuse de l’invention, le dispositif de guidage comporte une gorge de réception du dos de la lame et l’élément de verrouillage est constitué par le fond de la gorge. According to an advantageous characteristic of the invention, the guide device comprises a groove for receiving the back of the blade and the locking element is formed by the bottom of the groove.
Une telle caractéristique présente l’avantage d’assurer, avec un même élément, le guidage transversal de lame et son verrouillage longitudinal. Such a feature has the advantage of ensuring, with the same element, the transverse guide of the blade and its longitudinal locking.
Selon une caractéristique avantageuse de l’invention, la gorge de réception du dos de la lame présente une forme en V. Une telle caractéristique présente l’avantage d’assurer un excellent guidage du dos de la lame dans le fourreau. According to an advantageous characteristic of the invention, the receiving groove of the back of the blade has a V-shape. Such a characteristic has the advantage of ensuring excellent guidance of the back of the blade in the sheath.
Selon une caractéristique avantageuse de l’invention, le dispositif de réception du bord tranchant de la lame est constitué par un dispositif d’affûtage. According to an advantageous characteristic of the invention, the device for receiving the cutting edge of the blade consists of a sharpening device.
Une telle caractéristique permet d’affûter automatiquement la lame lors de son insertion et/ou extraction du fourreau. Selon une caractéristique avantageuse de l’invention, le dispositif d’affûtage est monté mobile en rotation sur le bras. Such a feature makes it possible to automatically sharpen the blade during its insertion and / or extraction from the sheath. According to an advantageous characteristic of the invention, the sharpening device is mounted so as to be able to rotate on the arm.
Une telle mobilité du dispositif d’affûtage à l’extrémité du bras permet au dispositif d’affûtage de suivre la courbure de la lame afin de se positionner toujours avec le même angle d’attaque par rapport au bord tranchant de la lame, de sorte que l’affûtage de la lame est optimisé indépendamment de la courbure de cette dernière. Such mobility of the sharpening device at the end of the arm allows the sharpening device to follow the curvature of the blade in order to always position itself with the same angle of attack with respect to the cutting edge of the blade, so that the sharpening of the blade is optimized regardless of the curvature of the latter.
Selon une caractéristique avantageuse de l’invention, le dispositif d’affûtage comprend deux éléments affûtants disposés en V. According to an advantageous characteristic of the invention, the sharpening device comprises two sharpening elements arranged in V.
Une telle caractéristique permet un affûtage équilibré sur les deux côtés de la lame. Such a feature allows for balanced sharpening on both sides of the blade.
Selon une caractéristique avantageuse de l’invention, les deux éléments affûtants sont disposés dans deux plans décalés parallèles entre eux et perpendiculaires à l’axe longitudinal du fourreau. According to an advantageous characteristic of the invention, the two sharpening elements are arranged in two offset planes parallel to each other and perpendicular to the longitudinal axis of the sheath.
Une telle disposition permet de réduire l’encombrement en largeur du dispositif d’affûtage. Such an arrangement makes it possible to reduce the overall width of the sharpening device.
Selon une caractéristique avantageuse de l’invention, le dispositif d'affûtage est disposé de façon adjacente à l'ouverture d’accès. According to an advantageous characteristic of the invention, the sharpening device is arranged adjacent to the access opening.
Une telle caractéristique permet d’affûter la lame sur sensiblement toute la longueur qui est introduite dans le fourreau. Such a feature makes it possible to sharpen the blade over substantially the entire length which is introduced into the sheath.
Selon une caractéristique avantageuse de l’invention, les moyens de rappel comprennent un ressort de rappel, avantageusement hélicoïdal, interposé entre le bras et un socle du fourreau. According to an advantageous characteristic of the invention, the return means comprise a return spring, preferably helical, interposed between the arm and a base of the sheath.
Une telle construction présente l’avantage d’être simple et économique à réaliser.Such a construction has the advantage of being simple and economical to produce.
Selon une caractéristique avantageuse de l’invention, le fourreau comporte un socle et une enveloppe montée de manière amovible sur le socle. According to an advantageous characteristic of the invention, the sleeve comprises a base and a casing removably mounted on the base.
Une telle caractéristique permet de simplifier le nettoyage de l’intérieur du fourreau. Such a feature makes it possible to simplify the cleaning of the inside of the sheath.
Selon une caractéristique avantageuse de l’invention, le bras comporte une première extrémité longitudinale montée mobile en rotation sur un socle Selon une caractéristique avantageuse de l’invention, le dispositif d’affûtage est monté mobile en rotation à une deuxième extrémité longitudinale du bras. According to an advantageous characteristic of the invention, the arm comprises a first longitudinal end mounted so as to be able to rotate on a base. According to an advantageous characteristic of the invention, the sharpening device is mounted mobile in rotation at a second longitudinal end of the arm.
Selon une caractéristique avantageuse de l’invention, la première extrémité longitudinale est montée pivotante sur le socle autour d’un premier axe et le dispositif d’affûtage est monté pivotant sur le bras autour d’un deuxième axe, les premier et deuxième axes étant parallèles entre eux. According to an advantageous characteristic of the invention, the first longitudinal end is mounted to pivot on the base about a first axis and the sharpening device is mounted to pivot on the arm about a second axis, the first and second axes being parallels between them.
Brève description des figures Brief description of the figures
On comprendra mieux les buts, aspects et avantages de la présente invention, d'après la description donnée ci-après d'un mode particulier de réalisation de l'invention présenté à titre d'exemple non limitatif, en se référant aux dessins annexés dans lesquels : The aims, aspects and advantages of the present invention will be better understood from the description given below of a particular embodiment of the invention presented by way of non-limiting example, with reference to the accompanying drawings in which :
[Fig 1] La figure 1 est une vue en perspective d’un fourreau et d’un couteau selon un mode particulier de réalisation de l'invention ; le couteau étant représenté à l’extérieur du fourreau. [Fig 1] Figure 1 is a perspective view of a sheath and a knife according to a particular embodiment of the invention; the knife being shown on the outside of the scabbard.
[Fig 2] La figure 2 est une vue en perspective éclatée du fourreau de la figure 1 ; [Fig 2] Figure 2 is an exploded perspective view of the sleeve of Figure 1;
[Fig 3] La figure 3 est une vue en perspective du fourreau de la figure 1 avec le couteau introduit dans le fourreau, le fourreau étant sur cette figure représenté sans son enveloppe externe afin de laisser un accès visuel au mécanisme du fourreau ; [Fig 3] FIG. 3 is a perspective view of the sheath of FIG. 1 with the knife inserted into the sheath, the sheath being in this figure shown without its outer casing in order to allow visual access to the mechanism of the sheath;
[Fig 4] La figure 4 est une vue en coupe longitudinale du fourreau et du couteau dans la position illustrée sur la figure 3 ; [Fig 4] Figure 4 is a longitudinal sectional view of the sheath and the knife in the position shown in Figure 3;
[Fig 5] La figure 5 est une vue de dessous de l’enveloppe amovible du fourreau ; [Fig 5] Figure 5 is a bottom view of the removable casing of the sheath;
[Fig 6] La figure 6 est une autre vue en perspective du fourreau de la figure 1 démuni de son couteau ; [Fig 6] Figure 6 is another perspective view of the sheath of Figure 1 without its knife;
[Fig 7] La figure 7 est une vue en coupe selon la ligne VII-VII de la figure 4 ;[Fig 7] Figure 7 is a sectional view along the line VII-VII of Figure 4;
[Fig 8] La figure 8 est une vue en perspective éclatée du dispositif d’affûtage équipant le fourreau de la figure 1 . [Fig 8] Figure 8 is an exploded perspective view of the sharpening device fitted to the sheath of Figure 1.
[Fig 9] La figure 9 est une vue en coupe longitudinale du fourreau et du couteau de la figure 1 dans 3 positions : a) le couteau introduit dans le fourreau b) le couteau dans une position basse avec compression du ressort c) le couteau partiellement sorti du fourreau. [Fig 9] Figure 9 is a longitudinal sectional view of the sheath and the knife of Figure 1 in 3 positions: a) the knife inserted into the sheath b) the knife in a low position with compression of the spring c) the knife partially taken out of the scabbard.
[Fig 10] La figure 10 est une vue de côté avec les mains d’un utilisateur, positionnées sur le fourreau et le couteau selon l’invention, pour en sortir le couteau. [Fig 10] Figure 10 is a side view with the hands of a user, positioned on the scabbard and the knife according to the invention, to remove the knife therefrom.
Seuls les éléments nécessaires à la compréhension de l'invention ont été représentés. Pour faciliter la lecture des dessins, les mêmes éléments portent les mêmes références d'une figure à l'autre. Only the elements necessary for understanding the invention have been shown. To facilitate reading of the drawings, the same elements bear the same references from one figure to another.
On notera que dans ce document, les termes "horizontal", "vertical", "inférieur", "supérieur", "haut", "bas", "avant", "arrière", longitudinal", "transversal", employés pour décrire le dispositif aiguiseur font référence à ce dispositif en situation d’usage, lorsqu'il repose à plat sur sa base. It will be noted that in this document, the terms "horizontal", "vertical", "lower", "upper", "top", "lower", "front", "rear", longitudinal "," transverse ", used for describe the sharpening device refer to this device in use, when it lies flat on its base.
Les figure 1 , 3 et 4 représentent un fourreau 1 aiguiseur et un couteau 2 de cuisine comprenant une lame 20 destinée à être remisée dans le fourreau 1, le couteau 2 comprenant classiquement un manche 21 qui fait saillie en dehors du fourreau 1 lorsque la lame 20 est remisée dans le fourreau 1. Figures 1, 3 and 4 show a sharpener scabbard 1 and a kitchen knife 2 comprising a blade 20 intended to be stored in the scabbard 1, the knife 2 conventionally comprising a handle 21 which protrudes outside the scabbard 1 when the blade 20 is stored in the sheath 1.
Conformément à la figure 2, le fourreau 1 comporte un socle 3 et une enveloppe 4 fixés l’un sur l’autre, et avantageusement réalisés en matériau plastique. Le socle 3 et l’enveloppe 4 présentent une forme allongée définissant une cavité 40 destinée à recevoir la lame 20 du couteau 2 pour son rangement, le fourreau 1 présentant une extrémité arrière munie une ouverture d’accès 10 par laquelle la lame 20 du couteau 2 peut être introduite dans la cavité 40. L’enveloppe 4 présente, en amont de l’ouverture d’accès 10, une jupe de guidage 41 qui présente des parois qui convergent en direction de l’ouverture d’accès 10 et permettent de guider la pointe de la lame 20 du couteau 1 vers l’ouverture d’accès 10. According to Figure 2, the sleeve 1 comprises a base 3 and a casing 4 fixed one on the other, and advantageously made of plastic material. The base 3 and the casing 4 have an elongated shape defining a cavity 40 intended to receive the blade 20 of the knife 2 for its storage, the sheath 1 having a rear end provided with an access opening 10 through which the blade 20 of the knife 2 can be introduced into the cavity 40. The casing 4 has, upstream of the access opening 10, a guide skirt 41 which has walls which converge in the direction of the access opening 10 and make it possible to guide the tip of the blade 20 of the knife 1 towards the access opening 10.
Le socle 3 comporte une base 30 comprenant une face inférieure destinée à reposer à plat sur un support et comprend une extrémité avant formée par une grille 31 qui s’étend vers le haut depuis la base 30 en formant un angle de l’ordre de 65° par rapport à la face inférieure de la base 30, la grille 31 venant fermer l’extrémité avant du fourreau 1 et étant avantageusement obtenue de moulage avec la base 30. The base 3 comprises a base 30 comprising a lower face intended to rest flat on a support and comprises a front end formed by a grid 31 which extends upwards from the base 30 forming an angle of the order of 65 ° relative to the underside of the base 30, the grid 31 closing the front end of the sleeve 1 and being advantageously obtained by molding with base 30.
L’enveloppe 4 est avantageusement fixée de manière amovible sur le socle 3 et présente une section transversale en forme de U inversé, visible sur la figure 5, comprenant, à chacune de ses extrémités, une nervure 42 venant s’engager dans une rainure de guidage 32 ménagée longitudinalement sur chacun des côtés de la base 30 du socle 3. The casing 4 is advantageously fixed in a removable manner on the base 3 and has a cross section in the shape of an inverted U, visible in FIG. 5, comprising, at each of its ends, a rib 42 which engages in a groove of guide 32 provided longitudinally on each of the sides of the base 30 of the base 3.
Conformément aux figures 3 et 4, le fourreau 1 comporte un dispositif de guidage de la partie supérieure de la lame 20 du couteau 2, également appelée dos de la lame 20, comprenant une pièce de guidage 5 fixée à l’intérieur de l’enveloppe 4, au niveau de sa partie incurvée définissant le sommet de l’enveloppe 4, la pièce de guidage 5 s’étendant dans l’axe longitudinal du fourreau 1 depuis l’extrémité ouverte du fourreau 1 jusqu’à la grille 31 définissant l’extrémité avant du fourreau 1. In accordance with Figures 3 and 4, the sheath 1 comprises a device for guiding the upper part of the blade 20 of the knife 2, also called the back of the blade 20, comprising a guide piece 5 fixed inside the casing 4, at its curved part defining the top of the casing 4, the guide piece 5 extending in the longitudinal axis of the sleeve 1 from the open end of the sleeve 1 to the grid 31 defining the front end of sleeve 1.
De manière préférentielle, la pièce de guidage 5 comprend une ouverture 51 au voisinage de son extrémité avant, dans laquelle vient s’engager un crochet 45 porté par l’enveloppe 4, visible sur les figures 2 et 4, l’extrémité avant de la pièce de guidage 5 comportant une tête 52 qui fait saillie vers le haut et qui vient s’engager dans une échancrure 44 adaptée ménagée à l’extrémité avant de l’enveloppe 4. L’insertion du crochet 45 dans l’ouverture 51 et l’engagement de la tête 52 dans l’échancrure 44 permettent de fixer, de manière amovible, l’extrémité avant de la pièce de guidage 5 à l’extrémité avant de l’enveloppe 4. Preferably, the guide piece 5 comprises an opening 51 in the vicinity of its front end, in which engages a hook 45 carried by the casing 4, visible in Figures 2 and 4, the front end of the guide piece 5 comprising a head 52 which projects upwards and which engages in a suitable notch 44 formed at the front end of the casing 4. The insertion of the hook 45 in the opening 51 and the The engagement of the head 52 in the notch 44 makes it possible to fix, in a removable manner, the front end of the guide part 5 to the front end of the casing 4.
La pièce de guidage 5 est avantageusement fixée à l’extrémité arrière de l’enveloppe 4 par clipsage, l’extrémité arrière de la pièce de guidage 5 comportant une bague de centrage 50 venant s’engager élastiquement entre deux clips de verrouillage 43 faisant saillie sur les bords de l’ouverture d’accès 10 du fourreau 1. The guide piece 5 is advantageously fixed to the rear end of the casing 4 by clipping, the rear end of the guide piece 5 comprising a centering ring 50 which is elastically engaged between two locking clips 43 protruding. on the edges of the access opening 10 of the sleeve 1.
Comme on peut le voir sur la figure 2, la tête 52 de la pièce de guidage 5 vient s’engager longitudinalement dans une encoche 33 ménagée à l’extrémité supérieure de la grille 31 lorsque l’enveloppe 4 est mise en place sur le socle 3, la tête 52 comportant une face inférieure comprenant une rainure 53 dans laquelle vient s’engager élastiquement un taquet de verrouillage 34 disposé à la base de l’encoche 33, permettant de maintenir l’enveloppe 4 en position sur le socle 3. As can be seen in Figure 2, the head 52 of the guide part 5 engages longitudinally in a notch 33 provided at the upper end of the grid 31 when the casing 4 is placed on the base. 3, the head 52 having an underside comprising a groove 53 in which elastically engages a locking tab 34 arranged at the base of the notch 33, making it possible to keep the casing 4 in position on the base 3.
Conformément aux figures 5 et 6, la bague de centrage 50 comporte une gorge 54 en forme de V inversé assurant le centrage du dos dans la lame 20 par rapport à l’enveloppe 4 lorsque la lame 20 est insérée dans le fourreau 1 . According to Figures 5 and 6, the centering ring 50 has a groove 54 in the form of an inverted V ensuring the centering of the back in the blade 20 relative to the casing 4 when the blade 20 is inserted into the sheath 1.
Le fourreau 1 comporte, en vis-à-vis de la bague de centrage 50, un dispositif d’affûtage 6 avantageusement porté par un bras 7 monté pivotant sur le socle 3, le dispositif d’affûtage 6 étant ramené en direction de la bague de centrage 50 par un ressort de rappel 8 agissant sur le bras 7. De manière préférentielle, le bras 7 est mobile dans le plan de la lame 20 entre une position haute où le ressort de rappel 8 est déployé à son maximum et une position basse où le ressort de rappel 8 est comprimé à son maximum. The sheath 1 comprises, facing the centering ring 50, a sharpening device 6 advantageously carried by an arm 7 pivotally mounted on the base 3, the sharpening device 6 being returned in the direction of the ring centering 50 by a return spring 8 acting on the arm 7. Preferably, the arm 7 is movable in the plane of the blade 20 between a high position where the return spring 8 is deployed to its maximum and a low position where the return spring 8 is compressed to its maximum.
Conformément aux figures 2 et 3, le bras 7 comporte une première extrémité, dite extrémité avant, montée pivotante au voisinage de l’extrémité avant du socle 3, au moyen d’un premier axe 71 s’étendant perpendiculairement à la direction longitudinale du socle 3. Dans l’exemple particulier de réalisation illustré sur les figures, le premier axe 71 est supporté par deux cloisons latérales 35 s’étendant verticalement de part et d’autre de l’extrémité avant du bras 7, ces cloisons latérales 35 contribuant à la rigidité de la liaison entre la base 30 et la grille 31. According to Figures 2 and 3, the arm 7 has a first end, called the front end, pivotally mounted in the vicinity of the front end of the base 3, by means of a first axis 71 extending perpendicularly to the longitudinal direction of the base 3. In the particular embodiment illustrated in the figures, the first axis 71 is supported by two side partitions 35 extending vertically on either side of the front end of the arm 7, these side partitions 35 contributing to the rigidity of the connection between the base 30 and the grid 31.
Le bras 7 comporte une deuxième extrémité, dite extrémité arrière, sur laquelle le dispositif d’affûtage 6 est préférentiellement monté de manière pivotante autour d’un deuxième axe 72 s’étendant parallèlement au premier axe 71 , le dispositif pouvant pivoter par rapport au bras 7 sur une plage angulaire d’au moins 15° et préférentiellement de l’ordre de 30°. The arm 7 has a second end, called the rear end, on which the sharpening device 6 is preferably mounted so as to pivot about a second axis 72 extending parallel to the first axis 71, the device being able to pivot relative to the arm. 7 over an angular range of at least 15 ° and preferably of the order of 30 °.
Dans l’exemple illustré sur les figures, le bras 7 comporte deux pattes latérales 73 qui font saillie vers l’arrière du bras 7 et entre lesquelles le dispositif d’affûtage 6 est disposé, le deuxième axe 72 étant avantageusement formé par des pions cylindriques de section circulaire qui font saillie latéralement au dispositif d’affûtage 6 et qui sont engagés dans des ouvertures circulaires ménagées dans les pattes latérales 73. Comme on peut le voir plus précisément sur la figure 8, le dispositif d’affûtage 6 comporte un corps en forme U supportant deux éléments affûtants 60 disposés de manière à former un V dans un plan de projection perpendiculaire à l’axe longitudinal du fourreau 1 , c’est-à-dire lorsque le dispositif d’affûtage 6 est vue selon la direction d’introduction de la lame 20 dans l’ouverture d’accès 10 du fourreau 1 , les deux éléments affûtants 60 étant décalés sur l’axe longitudinal du fourreau 1 et s’étendant chacun dans un plan perpendiculaire à l’axe longitudinal.In the example illustrated in the figures, the arm 7 comprises two lateral tabs 73 which protrude towards the rear of the arm 7 and between which the sharpening device 6 is disposed, the second axis 72 being advantageously formed by cylindrical pins. of circular section which project laterally from the sharpening device 6 and which are engaged in circular openings made in the lateral tabs 73. As can be seen more precisely in FIG. 8, the sharpening device 6 comprises a U-shaped body supporting two sharpening elements 60 arranged so as to form a V in a projection plane perpendicular to the longitudinal axis of the sleeve 1 , that is to say when the sharpening device 6 is seen in the direction of introduction of the blade 20 into the access opening 10 of the sheath 1, the two sharpening elements 60 being offset on the axis longitudinal of the sleeve 1 and each extending in a plane perpendicular to the longitudinal axis.
Les deux éléments affûtants 60, avantageusement constitués par deux cylindres en matériau céramique, sont disposés dans deux logements 61 agencés pour maintenir deux éléments affûtants 60 selon la disposition en V, le dispositif 6 comprenant une fente 63, ménagée entre les deux branches en U, dégageant l’accès à l’espace situé entre les deux éléments affûtants 60. Les deux éléments affûtants 60 sont immobilisés par friction à l’intérieur de leur logement 61 grâce à l’appui d’une partie du corps du dispositif d’affûtage 6, non visible sur les figures, contre l’extrémité de l’élément affûtant 60. Ainsi, les éléments affûtants 60 ne tournent pas dans leur logement 61 , où alors faiblement, lorsqu’ils sont soumis à la friction de la lame 20 lors de l’introduction ou l’extraction de cette dernière dans le fourreau 1 . The two sharpening elements 60, advantageously constituted by two cylinders of ceramic material, are arranged in two housings 61 arranged to hold two sharpening elements 60 in the V-shaped arrangement, the device 6 comprising a slot 63, formed between the two U-shaped branches, freeing access to the space located between the two sharpening elements 60. The two sharpening elements 60 are immobilized by friction inside their housing 61 thanks to the support of a part of the body of the sharpening device 6 , not visible in the figures, against the end of the sharpening element 60. Thus, the sharpening elements 60 do not rotate in their housing 61, where then weakly, when they are subjected to the friction of the blade 20 during the introduction or extraction of the latter in the sheath 1.
Dans l’exemple particulier de réalisation illustré sur les figures, le ressort de rappel 8 est un ressort hélicoïdal disposé entre le socle 3 et la face inférieure du bras 7, au voisinage de l’extrémité arrière du bras 7. Afin d’assurer le maintien du ressort de rappel 8 entre le bras 7 et le socle 3, le socle 3 comprend une coupelle 36 de maintien de l’extrémité inférieure du ressort de rappel 8 et la face inférieure du bras 7 comprend une coupelle 74 de maintien de l’extrémité supérieure du ressort de rappel 8, la coupelle 74 venant en regard de la coupelle 36 lorsque le bras 7 est amené en direction du socle 3. In the particular embodiment illustrated in the figures, the return spring 8 is a helical spring arranged between the base 3 and the underside of the arm 7, in the vicinity of the rear end of the arm 7. In order to ensure the maintaining the return spring 8 between the arm 7 and the base 3, the base 3 comprises a cup 36 for maintaining the lower end of the return spring 8 and the underside of the arm 7 comprises a cup 74 for maintaining the upper end of the return spring 8, the cup 74 coming opposite the cup 36 when the arm 7 is brought in the direction of the base 3.
De manière avantageuse, le dos de la lame 20 du couteau 2 comporte une encoche de sécurité 22, préférentiellement disposée au voisinage du manche 21 du couteau 2, dans laquelle vient s’engager un élément de verrouillage 55, constitué par le fond de la gorge 54 lorsque l’intégralité de lame 20 est insérée par le fourreau 1 , comme cela est illustrée sur les figures 3 et 4. Une telle insertion de l’élément de verrouillage 55 dans l’encoche de sécurité 22, sous l’effet de la poussée du ressort de rappel 8 sur le bras 7, permet d’immobiliser longitudinalement le couteau 2 dans le fourreau 1 dans une position de stockage.Advantageously, the back of the blade 20 of the knife 2 comprises a safety notch 22, preferably arranged in the vicinity of the handle 21 of the knife 2, in which a locking element 55 engages, consisting of the bottom of the groove. 54 when the entire blade 20 is inserted through the sheath 1, as illustrated in Figures 3 and 4. Such insertion of the locking element 55 in the safety notch 22, under the effect of the thrust of the return spring 8 on the arm 7 makes it possible to immobilize the knife 2 longitudinally in the sheath 1 in a storage position.
Conformément à la figure 9, le couteau est tout d’abord représenté en position immobilisée (première position 9a) avec l’élément de verrouillage 55 enclenché dans l’encoche de sécurité 22. Le couteau est ensuite représenté en position de déblocage (seconde position 9b), avec l’élément de verrouillage 55 sorti de l’encoche de sécurité 22 et le ressort de rappel 8 comprimé. Le couteau est enfin représenté en position libérée (troisième position 9c), avec l’élément de verrouillage 55 libre et l’encoche de sécurité 22 libre, In accordance with FIG. 9, the knife is first of all shown in the immobilized position (first position 9a) with the locking element 55 engaged in the safety notch 22. The knife is then shown in the unlocked position (second position 9b), with the locking element 55 out of the safety notch 22 and the return spring 8 compressed. The knife is finally shown in the released position (third position 9c), with the locking element 55 free and the safety notch 22 free,
Le fonctionnement du fourreau 1 aiguiseur va maintenant est décrit. The operation of the sheath 1 sharpener will now be described.
Lorsque l’utilisateur souhaite remiser la lame 20 du couteau 2 dans le fourreau 1 ou aiguiser cette dernière, il amène la pointe du couteau 2 en face de l’ouverture en forme de losange, visible sur la figure 6, formée par la gorge 54 et par les deux éléments affûtants 60, puis introduit la lame 20 du couteau 2 à l’intérieur du fourreau 1 par un mouvement longitudinal. Durant ce déplacement, le dos de la lame 20 est centré dans le fond de la gorge 54 en V alors que la partie coupante de la lame 20 est centrée par le V formé par les deux éléments affûtants 60.When the user wishes to store the blade 20 of the knife 2 in the sheath 1 or to sharpen the latter, he brings the tip of the knife 2 in front of the diamond-shaped opening, visible in FIG. 6, formed by the groove 54 and by the two sharpening elements 60, then introduces the blade 20 of the knife 2 inside the sheath 1 by a longitudinal movement. During this movement, the back of the blade 20 is centered in the bottom of the V-shaped groove 54 while the cutting part of the blade 20 is centered by the V formed by the two sharpening elements 60.
Ce double positionnement de la partie tranchante de la lame 20 et du dos de lame 20 permet d’obtenir un angle d’affûtage qui reste symétrique et constant tout le long du parcours de la lame 20 dans le fourreau 1 , sans que l’utilisateur n’ait besoin de d’orienter manuellement la lame 20. Ainsi, la symétrie de l’affûtage est garantie et les angles d’affûtage sont égaux de chaque côté du fil de la lame, ce qui permet une usure homogène et centrée de la lame 20. This double positioning of the cutting part of the blade 20 and of the blade back 20 makes it possible to obtain a sharpening angle which remains symmetrical and constant throughout the path of the blade 20 in the sheath 1, without the user does not need to manually orient the blade 20. Thus, the symmetry of the sharpening is guaranteed and the sharpening angles are equal on each side of the edge of the blade, which allows a uniform and centered wear of the blade. blade 20.
De plus, lors de cette introduction ou lors de l’extraction de la lame 20 du fourreau 1 , le mouvement de pivotement du bras 7 permet au dispositif d’affûtage 6 de suivre le profil de la partie coupante de la lame 20, le dispositif d’affûtage 6 exerçant, sous l’effet du ressort de rappel 8, une pression modérée sur la partie tranchante de la lame 20 lorsque la pointe de la lame est introduite dans l’ouverture d’accès 10 du fourreau 1 puis une pression de plus en plus importante au fur et à mesure que la hauteur de la lame 20 augmente lorsque le couteau 2 est introduit dans le fourreau 1 (visible sur les figures 9b et 9c). La friction importante entre la partie coupante de la lame 20 et les éléments affûtants 60 provoque l’affûtage de la lame 20. In addition, during this introduction or during the extraction of the blade 20 from the sheath 1, the pivoting movement of the arm 7 allows the sharpening device 6 to follow the profile of the cutting part of the blade 20, the device sharpening 6 exerting, under the effect of the return spring 8, a moderate pressure on the cutting part of the blade 20 when the tip of the blade is introduced into the access opening 10 of the sheath 1 then a pressure of increasingly important as the height of the blade 20 increases when the knife 2 is introduced into the sheath 1 (visible in Figures 9b and 9c). The high friction between the cutting part of the blade 20 and the sharpening elements 60 causes blade 20 to be sharpened.
Enfin, les éléments affûtant étant placés l’un derrière l’autre, dans le sens d’introduction de la lame 20, l’oscillation possible du dispositif d’affûtage 6 par rapport à la deuxième extrémité du bras 7 permet aux éléments affûtants 60 de rester en contact permanent avec la lame 20 et de rester correctement orientés par rapport à celle-ci, ce qui permet d’optimiser l’affûtage de la lame 20. Finally, the sharpening elements being placed one behind the other, in the direction of introduction of the blade 20, the possible oscillation of the sharpening device 6 with respect to the second end of the arm 7 allows the sharpening elements 60 to remain in permanent contact with the blade 20 and to remain correctly oriented with respect to the latter, which makes it possible to optimize the sharpening of the blade 20.
Lorsque la lame 20 du couteau 2 est intégralement introduite dans le fourreau 1 , l’élément de verrouillage 55 de la bague de centrage 50 est introduit dans l’encoche de sécurité 22 ménagée sur le dos de la lame 20, sous l’effet du ressort de rappel 8. Le couteau 2 est alors maintenu en sécurité dans le fourreau 1. Pour extraire le couteau 2 du fourreau 1 , comme illustré à la figure 10 l’utilisateur doit dans un premier temps exercer une pression vers le bas sur le manche 21 du couteau 2 pour faire sortir l’élément de verrouillage 55 de l’encoche de sécurité 22, puis exercer une traction sur le manche 21 du couteau 2 pour extraire la lame 20. Une telle manipulation évite toute chute accidentelle du couteau 2 qui pourrait se produire par exemple lorsque le fourreau 1 est manipulé pour son transport.When the blade 20 of the knife 2 is fully inserted into the sheath 1, the locking element 55 of the centering ring 50 is introduced into the safety notch 22 provided on the back of the blade 20, under the effect of return spring 8. The knife 2 is then held securely in the sheath 1. To extract the knife 2 from the sheath 1, as shown in figure 10, the user must first exert downward pressure on the handle 21 of the knife 2 to release the locking element 55 from the safety notch 22, then exert a traction on the handle 21 of the knife 2 to extract the blade 20. Such manipulation prevents any accidental fall of the knife 2 which could occur for example when the sheath 1 is handled for its transport.
Par ailleurs, le fourreau 1 ainsi réalisé présente également l’avantage de permettre un nettoyage aisé de l’intérieur du fourreau 1. En effet, l’utilisateur peut facilement désaccoupler l’enveloppe 4 du socle 3 en maintenant le socle 3 d’une main, après avoir retiré le couteau 2, puis en exerçant une traction sur l’enveloppe 4 de manière à ce que la rainure 53 se désengage, par déformation élastique de la tête 52, du taquet de verrouillage 34 disposé au sommet de la grille 31. Il peut ensuite faire coulisser l’enveloppe 4 sur le socle 3, chaque rainure de guidage 32 du socle 3 présentant, du côté de l’ouverture d’accès 10, une extrémité longitudinale ouverte permettant l’extraction de la nervure 42 de l’enveloppe 4. Après avoir nettoyé l’intérieur du fourreau 1, il peut remonter l’enveloppe 4 sur le socle 3 en effectuant les opérations décrites ci-dessus en sens inverse. Furthermore, the sleeve 1 thus produced also has the advantage of allowing easy cleaning of the inside of the sleeve 1. In fact, the user can easily disconnect the casing 4 from the base 3 while maintaining the base 3 with a hand, after having withdrawn the knife 2, then by exerting a traction on the casing 4 so that the groove 53 disengages, by elastic deformation of the head 52, the locking tab 34 arranged at the top of the grid 31 He can then slide the casing 4 on the base 3, each guide groove 32 of the base 3 having, on the side of the access opening 10, an open longitudinal end allowing the extraction of the rib 42 of the. envelope 4. After having cleaned the inside of the sleeve 1, he can reassemble the envelope 4 on the base 3 by performing the operations described above in reverse order.
Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention. Of course, the invention is in no way limited to the embodiment described and illustrated which has been given only by way of example. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without going beyond the scope of protection of the invention.
Ainsi, dans une variante de réalisation non représentée, l’enveloppe pourra ne pas être démontable du socle, le socle et l’enveloppe du fourreau pouvant par exemple être réalisés en une pièce. Ainsi, dans une variante de réalisation non représentée, l’encoche de sécurité pourra être remplacée par un élément de sécurité faisant saillie sur le dos de la lame et coopérant avec une encoche de verrouillage ménagée sur la partie supérieure du fourreau. Thus, in an alternative embodiment not shown, the casing may not be removable from the base, the base and the casing of the sheath may for example be made in one piece. Thus, in an alternative embodiment not shown, the safety notch can be replaced by a safety element projecting from the back of the blade and cooperating with a locking notch provided on the upper part of the sheath.

Claims

REVENDICATIONS Combinaison d'un fourreau (1) et d'un couteau (2) comprenant une lame (20) destinée à être remisée dans le fourreau (1), dans laquelle le fourreau (1) comprend une cavité (40) destinée à recevoir la lame (20) et une ouverture d’accès (10) à l’une des extrémités de la cavité (40), le fourreau (1 ) comportant, dans sa partie inférieure, un dispositif de réception du bord tranchant de la lame (20), caractérisée en ce que le fourreau (1 ) comporte, dans sa partie supérieure, un élément de verrouillage (55) coopérant avec un élément de sécurité (22) ménagé sur le dos de la lame (20) pour immobiliser longitudinalement le couteau (2) dans le fourreau (1) et en ce que le dispositif de réception du bord tranchant de la lame (20) est porté par un bras (7) monté mobile en rotation dans le fourreau (1), le fourreau (1) comprenant des moyens de rappel (8) agissant sur le bras (7) pour ramener le dispositif de réception du bord tranchant de la lame (20) en direction de l’élément de verrouillage (55). Combinaison selon la revendication 1, caractérisée en ce que l’élément de verrouillage (55) et l’organe de sécurité (22) sont disposés de telle sorte que l’élément de verrouillage (55) s’engage dans l’élément de sécurité (22) et immobilise le couteau (2) dans une position de stockage dans laquelle l’intégralité de la lame (20) est introduite dans le fourreau (1). Combinaison selon la revendication 2, caractérisée en ce que l’organe de sécurité (22) est constitué par une encoche (22). Combinaison selon l’une quelconque des revendications 1 à 3, caractérisée en ce que le fourreau comporte un dispositif de guidage (54) du dos de la lame (20) avantageusement disposé au voisinage de l’ouverture d’accès (10). Combinaison selon la revendication 4, caractérisée en ce que le dispositif de guidage comporte une gorge (54) de réception du dos de la lame (20) et en ce que l’élément de verrouillage (55) est constitué par le fond de la gorge (54). Combinaison selon la revendication 5, caractérisée en ce que la gorge (54) de réception du dos de la lame (20) présente une forme en V. CLAIMS Combination of a sheath (1) and of a knife (2) comprising a blade (20) intended to be stored in the sheath (1), in which the sheath (1) comprises a cavity (40) intended to receive the blade (20) and an access opening (10) at one end of the cavity (40), the sheath (1) comprising, in its lower part, a device for receiving the cutting edge of the blade ( 20), characterized in that the sheath (1) comprises, in its upper part, a locking element (55) cooperating with a safety element (22) provided on the back of the blade (20) to immobilize the knife longitudinally (2) in the sleeve (1) and in that the device for receiving the cutting edge of the blade (20) is carried by an arm (7) mounted to be able to rotate in the sleeve (1), the sleeve (1) comprising return means (8) acting on the arm (7) to return the device for receiving the cutting edge of the blade (20) in the direction of the blade element locking (55). Combination according to claim 1, characterized in that the locking element (55) and the safety member (22) are arranged such that the locking member (55) engages in the safety member (22) and immobilizes the knife (2) in a storage position in which the entire blade (20) is introduced into the sheath (1). Combination according to Claim 2, characterized in that the safety member (22) consists of a notch (22). Combination according to any one of Claims 1 to 3, characterized in that the sheath comprises a device (54) for guiding the back of the blade (20) advantageously arranged in the vicinity of the access opening (10). Combination according to Claim 4, characterized in that the guide device comprises a groove (54) for receiving the back of the blade (20) and in that the locking element (55) consists of the bottom of the groove (54). Combination according to Claim 5, characterized in that the groove (54) for receiving the back of the blade (20) has a V-shape.
7 Combinaison selon l’une quelconque des revendications précédentes, caractérisée en ce que le dispositif de réception du bord tranchant de la lame (20) est constitué par un dispositif d’affûtage (6). 8 Combinaison selon la revendication 7, caractérisée en ce que le dispositif d’affûtage (6) est monté mobile en rotation sur le bras (7). 7 Combination according to any one of the preceding claims, characterized in that the device for receiving the cutting edge of the blade (20) consists of a sharpening device (6). 8 Combination according to claim 7, characterized in that the sharpening device (6) is rotatably mounted on the arm (7).
9 Combinaison selon l’une quelconque des revendications 7 à 8, caractérisée en ce que le dispositif d’affûtage (6) comprend deux éléments affûtants (60) disposés en V. 10 Combinaison selon la revendication 9, caractérisée en ce que les deux éléments affûtants (60) sont disposés dans deux plans décalés parallèles entre eux et perpendiculaires à l’axe longitudinal du fourreau (1). 9 Combination according to any one of claims 7 to 8, characterized in that the sharpening device (6) comprises two sharpening elements (60) arranged in V. 10 Combination according to claim 9, characterized in that the two elements sharpeners (60) are arranged in two offset planes parallel to each other and perpendicular to the longitudinal axis of the sleeve (1).
11 Combinaison selon l’une quelconque des revendications 7 à 10, caractérisée en ce que le dispositif d'affûtage (6) est disposé de façon adjacente à l'ouverture d’accès (10). 11 Combination according to any one of claims 7 to 10, characterized in that the sharpening device (6) is disposed adjacent to the access opening (10).
12 Combinaison selon l’une quelconque des revendications 1 à 11, caractérisée en ce que les moyens de rappel comprennent un ressort de rappel (8), avantageusement hélicoïdal, interposé entre le bras (7) et un socle (3) du fourreau. 13 Combinaison selon l’une quelconque des revendications 1 à 12, caractérisée en ce que le fourreau (1) comporte un socle (3) et une enveloppe (4) montée de manière amovible sur le socle (3). 12 Combination according to any one of claims 1 to 11, characterized in that the return means comprise a return spring (8), preferably helical, interposed between the arm (7) and a base (3) of the sheath. 13 Combination according to any one of claims 1 to 12, characterized in that the sleeve (1) comprises a base (3) and an envelope (4) removably mounted on the base (3).
EP21709045.5A 2020-04-14 2021-03-05 Combination of a sheath and a knife Pending EP4135932A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2003710A FR3109112B1 (en) 2020-04-14 2020-04-14 COMBINATION OF A SHEATH AND A KNIFE
PCT/EP2021/055687 WO2021209196A1 (en) 2020-04-14 2021-03-05 Combination of a sheath and a knife

Publications (1)

Publication Number Publication Date
EP4135932A1 true EP4135932A1 (en) 2023-02-22

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US (1) US20230147749A1 (en)
EP (1) EP4135932A1 (en)
JP (1) JP2023522610A (en)
KR (1) KR20220164512A (en)
CN (1) CN115397619A (en)
AU (1) AU2021256864A1 (en)
CA (1) CA3173832A1 (en)
CO (1) CO2022013862A2 (en)
FR (1) FR3109112B1 (en)
WO (1) WO2021209196A1 (en)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676961A (en) * 1969-05-07 1972-07-18 Wiltshire Cutlery Co Pty Knife scabbard or holder
ZA718170B (en) * 1970-12-24 1972-09-27 Wiltshire Cutlery Co Pty Knife scabbard or holder
AU462886B2 (en) * 1973-03-26 1975-07-10 Wiltshire Cutlery Co. Pty. Ltd. Sharpening device
FI58270C (en) * 1975-08-22 1981-01-12 Wiltshire Cutlery Co Pty KNIVVAESSNINGSANORDNING
HU177925B (en) * 1975-12-04 1982-01-28 Wiltshire Cutlery Co Pty Knife grinding machine
FR2715340B1 (en) * 1994-01-26 1996-04-05 Seb Sa Sharpening sheath adapted to receive a knife and combination of such a sheath and a knife.
EP0784529A4 (en) * 1994-10-05 1997-12-29 Mcphersons Ltd A blade scabbard
AUPP749198A0 (en) * 1998-12-04 1998-12-24 Mcpherson's Limited Blade sharpener
US6427333B1 (en) * 2000-01-14 2002-08-06 Buck Knives, Inc. Knife-and-sheath combination with positive knife-to-sheath lock and multiple attachments points
TW506325U (en) * 2001-05-31 2002-10-11 Duen-Guo Fu Improved structure for tool sheath
US9033148B2 (en) * 2011-07-28 2015-05-19 Philip P. Adams Knife sheath
TWM541937U (en) * 2017-01-25 2017-05-21 Cuttway Products Co Ltd Combinational structure of knife and sheath
US20190351570A1 (en) * 2018-05-15 2019-11-21 John Siffermann Knife and Sheath with Retention System

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US20230147749A1 (en) 2023-05-11
CO2022013862A2 (en) 2022-10-31
WO2021209196A1 (en) 2021-10-21
JP2023522610A (en) 2023-05-31
KR20220164512A (en) 2022-12-13
FR3109112A1 (en) 2021-10-15
FR3109112B1 (en) 2022-05-06
AU2021256864A1 (en) 2022-10-27
CA3173832A1 (en) 2021-10-21
CN115397619A (en) 2022-11-25

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