EP0193424A1 - Sharpening sheath and the same in combination with a knife - Google Patents

Sharpening sheath and the same in combination with a knife Download PDF

Info

Publication number
EP0193424A1
EP0193424A1 EP86400144A EP86400144A EP0193424A1 EP 0193424 A1 EP0193424 A1 EP 0193424A1 EP 86400144 A EP86400144 A EP 86400144A EP 86400144 A EP86400144 A EP 86400144A EP 0193424 A1 EP0193424 A1 EP 0193424A1
Authority
EP
European Patent Office
Prior art keywords
sharpening
blade
members
sheath
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86400144A
Other languages
German (de)
French (fr)
Inventor
Gilles Miquelot
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 EP0193424A1 publication Critical patent/EP0193424A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D19/00—Instruments or methods for reproduction or fertilisation
    • A61D19/04—Instruments or methods for reproduction or fertilisation for embryo transplantation
    • 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

Definitions

  • the present invention relates to a sharpening sheath for a knife or the like.
  • the present invention also relates to the combination of such a sheath with a knife.
  • a sharpening sheath comprising a body in which is delimited a passage intended to receive a blade, an access opening at one of the ends of this passage, and a device sharpening fixed to the body in the vicinity of the access opening.
  • the sharpening device comprises two sharpening members arranged in a relative crossed arrangement so as to delimit between them a sharpening cavity.
  • Elastic means support the sharpening members in a way that widens the grinding cavity and makes it deeper and recalls the sharpening members towards a rest position in which the sharpening cavity has a width and a minimum depth.
  • the cutting edge of the knife blade slides against the bottom of the sharpening cavity, which is located at the intersection of the profiles sharpening seen in the direction of the introduction and extraction movements.
  • the sharpening members move relative to each other, which varies the depth of the sharpening cavity and, correspondingly, moves the point of intersection of the profiles along each profile.
  • the profiles wear out in a distributed manner and their lifespan is greatly increased.
  • the sharpening cavity When the device is new, the sharpening cavity has a depth at rest allowing it to engage the point of the blade when it is introduced through the access opening. Otherwise, the tip of the blade would come up against the sharpening members and it would impossible to engage the blade in the scabbard.
  • the progressive wear of the profiles has the consequence that, at rest, the sharpening cavity becomes deeper and deeper during the life of the device. Thus, an apparatus whose sharpening members are worn no longer sharpens the region of the point of the knife.
  • the object of the invention is thus to propose a sharpening sheath ensuring a sharpening range which is not affected by the wear of the sharpening members.
  • the invention thus relates to a sharpening sheath comprising a body in which is defined a passage intended to receive a blade, an access opening at one of the ends of said passage, support means provided in the passage for the back of the blade, and a sharpening device fixed to the body in the vicinity of the access opening.
  • the sharpening device comprises at least two sharpening members offset in the longitudinal direction of the passage and having crossed sharpening profiles defining between them a sharpening cavity and a region of mutual overlap of the sharpening members.
  • Elastic means urge the sharpening members towards a rest position in a direction tending to close the sharpening cavity by increasing the overlap of the sharpening members.
  • this sheath is characterized in that the elastic means are prestressed in the rest position and in that the body internally carries abutment means which, in the rest position of the sharpening members, cooperate with the profile sharpening these in their region of mutual overlap, outside a path reserved for the blade.
  • the rest position of the sharpening members is no longer defined by the relaxed state of the elastic members, but by stops linked to the body of the sheath.
  • these stops cooperate with the sharpening profile of the sharpening members, so that the position of the sharpening profiles with respect to each other is independent of their state of wear.
  • the grinding cavity consists of a space left free between the grinding profiles, it has the same dimension at rest.
  • the stop means comprise two stops, each cooperating with one of the sharpening members and having between them, seen in the direction of passage, a suitable distance for the passage of the blade. , so as to provide it with lateral guidance.
  • the combination of the above sharpening sheath and a knife comprising a handle and a blade having a cutting edge and a back opposite to this edge, is characterized in that the sheath internally comprises a sliding support surface for the back of the blade, in that at least part of the back of the blade is substantially straight and adapted to slide on the sliding support surface, and in that the distance between a point of the blade and the extension of the rectilinear part of the back is equal to or slightly less than the distance between the sliding bearing surface and the bottom of the sharpening cavity when the sharpening members are in the rest position.
  • the user introduces the knife so that the back of the blade slides against the sliding support surface. In this position, the tip of the blade approaches the sharpening cavity in the vicinity of the point of intersection of the sharpening profiles. The cutting edge of the blade therefore immediately meets the sharpening profiles. An assembly is thus produced, the knife of which will be sharpened over its entire length at each insertion and extraction during the whole life of the device.
  • the assembly represented in FIG. 1 comprises a sheath 1 formed in its turn by a sheath 2 of semi-rigid plastic material of which a lower face 3 is planar to constitute a sole and an upper face 4 is inclined so that the sheath 2 is narrower at a closed rear end 6 than at an open front end 7.
  • the sole 3 is bent so as to be detached from a support plane 8 (for example a table) for the sole 3.
  • the sole 3 has two longitudinal notches (not shown) defining between them a blade 9 terminated by a tongue 11 on which a user can press to bring the blade 9 closer to the plane 8 by deformation elastic substantially at the elbow between the blade 9 and the sole 3 proper.
  • a sharpening cartridge 12 In the opening 7 of the sheath 2 is removably mounted, a sharpening cartridge 12 extending substantially up to the elbow between the sole 3 and the blade 9.
  • the plastic housing 13 of the cartridge 12 carries at its base a lug 14 engaged in a lumen 16 of the blade 9 in the vicinity of the tongue 11.
  • the housing 13 has a front wall 17 forming over its entire periphery a shoulder 18 pressed against the open end 7 of the sheath 2 when the lug 14 is engaged in the slot 16.
  • the sheath 2 and the housing 13 form the body of the sheath within the meaning of the invention.
  • the housing 13 of the cassette 12 consists of two half-bodies 13a and 13b assembled to each other along a median longitudinal plane 19 which is also the median longitudinal plane of the sheath 2 when the cartridge is mounted therein.
  • the two half-bodies 13a and 13b are assembled to one another by interlocking. More specifically (Fig. 4a), the half-body 13a has two buttonholes 21 which protrude beyond the plane 19 and into which engage bosses 22 carried by the half-body 13b on its upper face in the vicinity of the plane 19.
  • the half-bodies 13a and 13b comprise walls 23 delimiting between them an interior volume that is substantially parallelepipedic 24. At their lower end, the walls 23 form two longitudinal lips 26 side by side on either side of the plane 19.
  • the lip 26 of the half-body 13b projects beyond the plane 19 two pins 27 axially split to be radially compressible, each engaged in an orifice 28 in the other lip 26.
  • the pins 27 are terminated by an extra thickness 29 locking this interengagement .
  • each abrasive block 32 has, opposite its mount 31, a sharpening profile 34 which, seen according to the longitudinal direction of the sheath 1, is in a crossed position with respect to the sharpening profile (s) of the adjacent abrasive block or blocks 32.
  • the successive sharpening profiles 34 are alternately turned on one side and on the other when they are seen in the longitudinal direction of the sheath.
  • the successive frames 31 are inclined alternately on one side and the other of the median longitudinal plane 19. Their bottom, opposite to the sharpening profile 34, extends into an elastically flexible strip 36 In a rest position of the members 31, each strip 36 extends substantially in the plane P up to a foot 37 which also carries the other sharpening member 31 whose profile 34 is turned on the same side. Each foot 37 is made in one piece with the two strips 36 and the two mounts 31 that it carries, from a sheet metal cutout.
  • the two monoblock parts thus necessary to carry the four abrasive blocks 32 are identical, but turned 180 ° relative to each other, their feet 37 being one against the other and their lamellae 36 the side by side.
  • Each foot 37 has two holes 38 which are an extension of two holes 38 of the other foot 37.
  • the feet 37 are in use pinched between the two lips 26 of the half-bodies 13a and 13b and each elastic stud 27 is engaged in two aligned holes 38.
  • the slats 36 occupy substantially the lower half of the height of the space 24 and the sharpening members 31 the upper half of said height.
  • the sheet metal constituting these two elements is bent so that the sharpening profiles 34 are directed obliquely upwards.
  • the sharpening profiles seen in the longitudinal direction of the sheath (FIG. 12) define between them a sharpening cavity 39, substantially in V, above their point of intersection P, and a region 41 of overlap of the sharpening members below their point of intersection P.
  • the sharpening members 31 are shown in their rest position in which the sharpening cavity 39 has its minimum dimension and the overlapping region 41 its maximum dimension.
  • the sharpening members 31 are permanently recalled towards this position by the elastic deformation of the lamellae 36 which carries them.
  • the housing 13 of the cartridge comprises stop means 42 which cooperate with the sharpening profiles 34 to define the rest position of the sharpening members 31.
  • each half-body 13a, 13b has two one-piece ribs with the wall 23, which are transverse to the longitudinal direction of the sheath.
  • Each rib 42 is located opposite one of the two sharpening profiles 34 which faces the half-body 13a or 13b which carries it.
  • Each rib 42 is attached to the wall 23 of the half-body which carries it, and more precisely, to its upper region 23a and at the top of its lateral region 23b.
  • Each rib 42 has a lower edge 42a, substantially perpendicular to the plane 19, and a lateral edge 42b which is parallel to the plane 19 and is set back from the plane 19 by a distance e 2 equal to half the thickness. e of a path 4 4 provided for the blade to be sharpened.
  • the blade will be guided laterally along the path 44 by the four edges 42b of the four ribs 42 located successively on one side and the other of the plane 19.
  • the path 44 is further defined by a longitudinal groove43 which is reserved between the upper regions 23a of the half-bodies 13a and 13b.
  • the bottom 43a of the rib 43 is materialized by the underside of the buttonholes 21.
  • the groove 43 has a width e equal to the distance between the edges 42b seen in the longitudinal direction of the sheath.
  • the edges 42b of the ribs 42 are perpendicular to the edges 43b of the groove 43.
  • each rib 42 is joined to each other by a chamfer 42c intended to receive in support one of the sharpening profiles 34 to define its rest position.
  • the inclination of the chamfers 42c with respect to the plane 19 is chosen to correspond substantially to that which the region of the profiles 34 resting on the chamfers has in the rest position.
  • the sharpening profiles 34 intersect symmetrically relative to the plane 19 when looking in the longitudinal direction of the sheath.
  • each sharpening profile 34 intended to cooperate with the blade on one side of the plane 19 cooperates in the rest position with a chamfer 42c situated on the other side of the plane 19, and is supported on this chamfer by a region located below the point P carried by the plane 19, in other words by a region adjacent to the region 41 of overlap of the sharpening members 31.
  • the blades 36 in the rest position of the sharpening members 31, the blades 36 are in a prestressed state applying the abrasive blocks 32 with a certain force against the ribs 42.
  • the blades 36 can use their residual elastic stroke to always bring the sharpening profiles 34 back to the rest position well determined by the chamfers 42c.
  • the sharpening members 31 can, with additional flexion in the lamellae 36, be mutually separated so as to widen and deepen the cavity sharpening 39.
  • the sharpening profiles 34 have a convex curvature studied so that the angle formed at the point of intersection P at the bottom of the cavity 39 is substantially constant whatever the mutual spacing of the members 31.
  • the assembly described also comprises a knife 46 comprising a handle 47 and a blade 48, one longitudinal edge of which constitutes a back 49 and the opposite edge a cutting edge 51 terminated opposite the handle 47 by a tip 52.
  • the back 49 of the blade is rectilinear over most of its length, along a region called L in FIG. 1. In the vicinity of the point 52, it curves strongly to reach the latter by a tip 53 extending in a direction transverse to the blade and in particular to the region L.
  • region L of the back 49 is parallel to the longitudinal direction of the sheath, itself parallel to the face 4 of the sheath 2.
  • the distance h (FIG. 1) between the tip 52 and the extension of the region L is equal to or slightly less than the distance H between the point P when the members 31 are in the rest position ( Figure 10) and the bottom 43a of the groove 43.
  • the cutting edge 51 has over its entire length, relative to the back 49, an inclination in the direction converging towards the tip 52.
  • the cutting edge 51 quickly meets the intersection P of the profiles 34 then regularly pushes the sharpening members 31 away the from each other until point P (FIG. 11) is a short distance from the lower end of the abrasive blocks 32 when the handle 47 is in abutment against the front wall 17 as shown in FIG. 1. This ensures that the sharpening profiles work and therefore wear out over a large part of their height when the knife is inserted and extracted, and work in particular in the region where they bear against the chamfers 42c when they are in the position of rest.
  • the front wall 17 consists of two parts each made in one piece with one of the half-bodies 13a or 13b.
  • the two parts of the wall 17 define between them an opening 54 giving the blade 48 access to its path 44 in the cartridge 12.
  • the opening 54 extends substantially over half the height of the wall 17. It has the same width e as the path 44. Its upper end is an extension of the bottom 43a of the groove 43.
  • the cartridge 12 further comprises means 56 for partially masking the opening 54 and more particularly for masking the -lower- region of the opening 54 which is opposite the region 41 of overlap sharpening members 31 in the rest position.
  • the masking means 56 comprise two elastic metal wires 57 which extend one after the other behind the opening 54, in the direction of the height of the latter. As shown in FIG. 6 where the intersection of the profiles is materialized by the dashed line P, this relative position of the two wires 57 is produced below the intersection P, that is to say opposite the overlapping region of the profiles 31 in the rest position. Above the intersection P considered in the rest position of the grinding bodies, the two rods 57 diverge progressively from each other to DEGA - ger the upper region aligned with the grinding cavity , of the opening 54. As shown in FIG.
  • the rods 57 are bent away from each other at their upper end to bear each behind a boss 58 carried by one of the half -body 13a, 13b on either side of the path 44.
  • the rods 57 are guided in a plane parallel to that of the opening 54.
  • their upper ends are guided between the front wall 17 and a wing 70 parallel at the wall 17.
  • the two rods 57 are pinched one behind the other between the two lips 26 of the half-bodies 13a and 13b and are bent at right angles one away from the other to penetrate each into an anchoring hole 59 of one of the lips 26.
  • each rod 57 has at its base a camber 61 directed in the opposite direction from the camber 62 of its upper end.
  • the support of the upper end of each rod 57 behind the associated boss 58 prestresses the rods 57 in bending, which gives them each a curvature ensuring between them the release of the upper part of the opening 54.
  • the bottom of the clearance may have a very small angle A (FIG. 2) and less than the angle B under which the profiles 34 intersect.
  • the blade 48 has a constant thickness, close to 'e ( Figure 7) except in a recessed band 63 formed on each side of the blade 48 from the cutting edge 51 to symmetrically thin the blade 48 from its region of constant thickness up to its edge 51.
  • the two eyid bands 63 form an angle C which is also greater than the angle A.
  • the cartridge 12 also comprises a rear wall 64, the two of which parts, each linked to one of the half-bodies 13a or 13b, define between them an elongated opening 65 substantially situated in the extension of the opening 54 passing through the front wall 17. It is thus created inside the sheath 1 for the blade 48 a passage comprising the opening 54, the path 44, the opening 65, and finally the hollow interior of the sheath 2.
  • the tip 52 engages in the grinding cavity 39 as was said above.
  • the rods 57 tend to take their minimum elastic tension, that is to say their minimum spacing, the back of the blade 49 is applied against the bottom 43a of the groove 43 and against the upper edge of the opening 54, which effectively ensures that the tip 52 will penetrate into the sharpening cavity 39 and does not strike the first abrasive block 32.
  • the tip 52 having passed through the sharpening cavity, leaves the cartridge 12 through the opening 65 to enter the free space inside the sheath 2.
  • the end of the stroke d 'introduction is defined by abutment of the handle 47 against the front wall 17 of the cartridge.
  • the sharpening cavity When removing the blade, the sharpening cavity gradually closes until it returns to its rest position when the tip 52 has been extracted from it.
  • the sharpening of the blade 51 begins in the immediate vicinity of the tip 52. This feature is preserved throughout the life of the device, despite the wear of the sharpening profiles 34.
  • the sharpening cavity is defined by profiles 34 and it is in relation to these, by means of the stops 42c, that the rest position of the sharpening devices 31.
  • the ribs 42, carrying the stops 42c, provide the blade 48 with very good lateral guidance preventing any jamming of the blade in the sheath.
  • sharpening members instead of being movable independently of one another as in the example shown, could have movements made symmetrical by a mechanical coupling in which case it would suffice with a stop cooperating with one sharpening devices.
  • the device for partially masking the opening 54 could consist of a sliding shutter loaded by a spring.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Reproductive Health (AREA)
  • Transplantation (AREA)
  • Zoology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

Le fourreau contient des organes d'affûtage (31) montés élastiquement en disposition relative croisée, de manière à définir entre eux, une cavité d'affûtage s'étendant au-dessus d'une ligne (P) de croisement des profils d'affûtage (34). La position de repos des organes d'affûtage (31) est définie par des butées (42c) coopérant avec les profils d'affûtage en dessous de la ligne (P). Les butées (42c) sont portées par des nervures (42) dont le bord intérieur (42b) sert au guidage de la lame (48). La distance (h) entre la pointe (52) et le dos (49) de la lame, est peu inférieure à la distance (H) entre la ligne (P) et le fond d'une rainure (43) de guidage du dos de la lame. L'arête (51) de la lame est inclinée par rapport au dos (49). Utilisation pour faire travailler les organes d'affûtage sur une partie importante de leur longueur et pour assurer l'affûtage de toute la longueur de l'arête quel que soit l'état d'usure des profils d'affûtage.The sheath contains sharpening members (31) resiliently mounted in a cross relative arrangement, so as to define between them, a sharpening cavity extending above a line (P) crossing the sharpening profiles. (34). The rest position of the sharpening members (31) is defined by stops (42c) cooperating with the sharpening profiles below the line (P). The stops (42c) are carried by ribs (42) whose inner edge (42b) is used to guide the blade (48). The distance (h) between the tip (52) and the back (49) of the blade, is little less than the distance (H) between the line (P) and the bottom of a groove (43) guiding the back of the blade. The edge (51) of the blade is inclined relative to the back (49). Use to make the sharpening members work over a large part of their length and to ensure the sharpening of the entire length of the edge regardless of the state of wear of the sharpening profiles.

Description

La présente invention concerne un fourreau aiguiseur pour couteau ou analogue.The present invention relates to a sharpening sheath for a knife or the like.

La présente invention concerne également la combinaison d'un tel fourreau avec un couteau.The present invention also relates to the combination of such a sheath with a knife.

On connait d'après le FR-A-2 223 139, un fourreau aiguiseur comprenant un corps dans lequel est délimité un passage destiné à recevoir une lame, une ouverture d'accès à l'une des extrémités de ce passage, et un dispositif d'affûtage fixé au corps au voisinage de l'ouverture d'accès. Le dispositif d'affûtage comprend deux organes d'affûtage agencés suivant une disposition relative croisée de façon à délimiter entre eux une cavité d'affûtage. Des moyens élastiques supportent les organes d'affûtage d'une façon permettant d'élargir la cavité d'affûtage et de la rendre plus profonde et rappelle les organes d'affûtage vers une position de repos dans laquelle la cavité d'affûtage a une largeur et une profondeur minimales.We know from FR-A-2 223 139, a sharpening sheath comprising a body in which is delimited a passage intended to receive a blade, an access opening at one of the ends of this passage, and a device sharpening fixed to the body in the vicinity of the access opening. The sharpening device comprises two sharpening members arranged in a relative crossed arrangement so as to delimit between them a sharpening cavity. Elastic means support the sharpening members in a way that widens the grinding cavity and makes it deeper and recalls the sharpening members towards a rest position in which the sharpening cavity has a width and a minimum depth.

Lorsqu'on remise le couteau dans le fourreau, ou lorsqu'on extrait le couteau du fourreau, l'arête coupante de la lame du couteau glisse contre-le fond de la cavité d'affûtage, qui est situé à l'intersection des profils d'affûtage vus selon la direction des mouvements d'introduction et d'extraction. Au cours de ces mouvements, les organes d'affûtage se déplacent l'un par rapport à l'autre, ce qui fait varier la profondeur de la cavité d'affûtage et, corrélativement, déplace le point d'intersection des profils le long de chaque profil. Ainsi, les profils s'-usent de manière répartie et leur durée de vie est grandement augmentée.When putting the knife back in the sheath, or when removing the knife from the sheath, the cutting edge of the knife blade slides against the bottom of the sharpening cavity, which is located at the intersection of the profiles sharpening seen in the direction of the introduction and extraction movements. During these movements, the sharpening members move relative to each other, which varies the depth of the sharpening cavity and, correspondingly, moves the point of intersection of the profiles along each profile. Thus, the profiles wear out in a distributed manner and their lifespan is greatly increased.

Quand l'appareil est neuf, la cavité d'affü- tage a au repos une profondeur permettant d'y engager la pointe de la lame lorsqu'on l'introduit par l'ouverture d'accès. A défaut, la pointe de la lame viendrait buter contre les organes d'affûtage et il serait impossible d'engager la lame dans le fourreau. Cependant, l'usure progressive des profils a pour conséquence que, au repos, la cavité d'affûtage est de plus .en plus profonde au cours de la vie de l'appareil. Ainsi, un appareil dont les organes d'affûtage sont usés n'aiguise plus la région de la pointe du couteau.When the device is new, the sharpening cavity has a depth at rest allowing it to engage the point of the blade when it is introduced through the access opening. Otherwise, the tip of the blade would come up against the sharpening members and it would impossible to engage the blade in the scabbard. However, the progressive wear of the profiles has the consequence that, at rest, the sharpening cavity becomes deeper and deeper during the life of the device. Thus, an apparatus whose sharpening members are worn no longer sharpens the region of the point of the knife.

Le but de l'invention est ainsi de proposer un fourreau aiguiseur assurant une plage d'aiguisage qui ne soit pas affectéepar l'usure des organes d'affûtage.The object of the invention is thus to propose a sharpening sheath ensuring a sharpening range which is not affected by the wear of the sharpening members.

L'invention vise ainsi un fourreau aiguiseur comprenant un corps dans lequel est délimité un passage destiné à recevoir une lame, une ouverture d'accès à l'une des extrémités dudit passage, des moyens d'appui ménagés dans le passage pour le dos de la lame, et un dispositif d'affûtage fixé au corps au voisinage de l'ouverture d'accès. Le dispositif d'affûtage comprend au moins deux organes d'affûtage décalés selon la direction longitudinale du passage et présentant des profils d'affûtage croisés délimitant entre eux une cavité d'affûtage et une région de chevauchement mutuel des organes d'affûtage. Des moyens élastiques sollicitent les organes d'affûtage vers une position de repos dans un sens tendant à fermer la cavité d'affûtage en augmentant le chevauchement des organes d'affûtage.The invention thus relates to a sharpening sheath comprising a body in which is defined a passage intended to receive a blade, an access opening at one of the ends of said passage, support means provided in the passage for the back of the blade, and a sharpening device fixed to the body in the vicinity of the access opening. The sharpening device comprises at least two sharpening members offset in the longitudinal direction of the passage and having crossed sharpening profiles defining between them a sharpening cavity and a region of mutual overlap of the sharpening members. Elastic means urge the sharpening members towards a rest position in a direction tending to close the sharpening cavity by increasing the overlap of the sharpening members.

Suivant l'invention, ce fourreau est caractérisé en ce que les moyens élastiques sont précontraints en position de repos et en ce que le corps porte intérieurement des moyens de butée qui, en position de repos des organes d'affûtage, coopèrent avec le profil d'affûtage de ceux-ci dans leur région de chevauchement mutuel , en dehors d'un trajet réservé à la lame.According to the invention, this sheath is characterized in that the elastic means are prestressed in the rest position and in that the body internally carries abutment means which, in the rest position of the sharpening members, cooperate with the profile sharpening these in their region of mutual overlap, outside a path reserved for the blade.

Ainsi, la position de repos des organes d'affûtage est définie non plus par l'état détendu des organes élastiques, mais par des butées liées au corps du fourreau. De plus, ces butées coopèrent avec le profil d'affûtage des organes d'affûtage, de sorte que la position des profils d'affûtage les uns par rapport aux autres est indépendante de leur état d'usure. La cavité d'affûtage consistant en un espace laissé libre entre les profils d'affûtage, celle-ci a au repos toujours la même dimension. Comme le contact entre les moyens de butée et les organes d'affûtage au repos a lieu dans la région de chevauchement des organes d'affûtage, et plus particulièrement en dehors d'un trajet réservé à la lame, ils ne gênent en rien l'évolution de la lame dans le fourreau. Bien au contraire, dans un mode de réalisation préféré, les moyens de butée comprennent deux butées coopérant chacune avec l'un des organes d'affûtage et ayant entre elles, vue selon la direction du passage, une distance appropriée pour le passage de la lame, de façon à assurer à celle-ci un guidage latéral.Thus, the rest position of the sharpening members is no longer defined by the relaxed state of the elastic members, but by stops linked to the body of the sheath. In addition, these stops cooperate with the sharpening profile of the sharpening members, so that the position of the sharpening profiles with respect to each other is independent of their state of wear. Since the grinding cavity consists of a space left free between the grinding profiles, it has the same dimension at rest. As the contact between the abutment means and the sharpening members at rest takes place in the region of overlap of the sharpening members, and more particularly outside a path reserved for the blade, they do not interfere in any way with the evolution of the blade in the sheath. On the contrary, in a preferred embodiment, the stop means comprise two stops, each cooperating with one of the sharpening members and having between them, seen in the direction of passage, a suitable distance for the passage of the blade. , so as to provide it with lateral guidance.

On connaît certes d'après le US-A-2 885 836 un outil d'aiguisage dont les organes d'affûtage sont, en position de repos, sollicités par des moyens élastiques contre des butées. Mais ces butées ne coopèrent pas avec le profil d'affûtage des organes d'affûtage, de sorte que les effets de l'invention ne sont pas obtenus. De plus, cet outil d'aiguisage n'est pas monté dans un fourreau muni de moyens de guidage pour le dos de la lame de sorte que le couteau n'a pas de trajet bien défini et il serait par conséquent peu utile que le fond de la cavité d'affûtage ait une position fixe, indépentante notamment de l'usure des profils.Certainly from US-A-2 885 836 there is known a sharpening tool whose sharpening members are, in the rest position, urged by elastic means against stops. However, these stops do not cooperate with the sharpening profile of the sharpening members, so that the effects of the invention are not obtained. In addition, this sharpening tool is not mounted in a sheath provided with guide means for the back of the blade so that the knife does not have a well-defined path and it would therefore be of little use if the bottom of the sharpening cavity had a fixed position, independent in particular the wear of the profiles.

Suivant un autre aspect de l'invention, la combinaison du fourreau aiguiseur ci-dessus et d'un couteau comprenant un manche et une lame ayant une arête coupante et un dos opposé à cette arête, est caractérisée en ce que le fourreau comprend intérieurement une surface d'appui glissant pour le dos de la lame, en ce qu'une partie au moins du dos de la lame est sensiblement rectiligne et adaptée à glisser sur la surface d'appui glissant, et en ce que la distance entre une pointe de la lame et le prolongement de la partie rectiligne du dos est égale ou peu inférieure à la distance entre la surface d'appui glissant et le fond de la cavité d'affûtage lorsque les organes d'affù- tage sont en position de repos.According to another aspect of the invention, the combination of the above sharpening sheath and a knife comprising a handle and a blade having a cutting edge and a back opposite to this edge, is characterized in that the sheath internally comprises a sliding support surface for the back of the blade, in that at least part of the back of the blade is substantially straight and adapted to slide on the sliding support surface, and in that the distance between a point of the blade and the extension of the rectilinear part of the back is equal to or slightly less than the distance between the sliding bearing surface and the bottom of the sharpening cavity when the sharpening members are in the rest position.

L'utilisateur introduit le couteau de façon que le dos de la lame glisse contre la surface d'appui glissant. Dans cette position, la pointe de la lame aborde la cavité d'affûtage au voisinage du point d'intersection des profils d'affûtage. L'arête tranchante de la lame rencontre donc aussitôt les profils d'affûtage. On réalise ainsi un ensemble dont le couteau sera aiguisé sur toute sa longueur à chaque introduction et extraction durant toute la vie de l'appareil.The user introduces the knife so that the back of the blade slides against the sliding support surface. In this position, the tip of the blade approaches the sharpening cavity in the vicinity of the point of intersection of the sharpening profiles. The cutting edge of the blade therefore immediately meets the sharpening profiles. An assembly is thus produced, the knife of which will be sharpened over its entire length at each insertion and extraction during the whole life of the device.

D'autres particularités et avantages de l'invention ressortiront encore de la description ci-après.Other features and advantages of the invention will emerge from the description below.

Aux dessins annexés, donnés à titre d'exemples non limitatifs:

  • . la figure 1 est une vue en élévation latérale d'un couteau selon l'invention engagé dans un fourreau selon l'invention, une gaine de ce fourreau étant vue en coupe longitudinale et le manche du couteau étant arraché;
  • . là figure 2 est une vue frontalede la cartou- d'affûtage, selon le plan II-II de la figure 1;
  • . la figure 3 est une vue du fourreau en coupe selon le plan III-III de la figure 1 lorsque les organes d'affûtage sont en position de repos;
  • . la figure 4 est une vue analogue à la figure 3, mais montrant le boîtier de la cartouche d'affûtage seul;
  • . la figure- 4a montre, agrandi le détail de la fiqure 4:
  • . la figure 5 est une vue en coupe du boîtier de la cartouche d'affûtage selon le plan V-V de la figure 1;
  • . la figure 6 est une vue en perspective avec coupe et arrachement illustrant certaines relations dimensionnelles et spaciales dans le fourreau aiguiseur et entre celui-ci et la lame du couteau;
  • . la figure 7 est une vue à échelle agrandie montrant partiellement le masque dans lequel est engagée la lame de couteau, vue en coupe transversale;
  • . la figure 8 est une vue de face de l'un des éléments du masque;
  • . la figure 9 est une vue de la cartouche,partiellement en coupe longitudinale selon le plan IX-IX de la figure 10, et de la façon dont elle coopère avec la lame du couteau en début d'introduction ou en fin d'extraction;
  • . la figure 10 est une coupe selon le plan X-X de la figure 9, la lame de couteau attaquant les organes d'affûtaae en position de repos;
  • . la figure 31 est une vue analogue à la figure 10 mais avec la lame de couteau en fin d'introduction ou en début d'extraction; et
  • . la figure 12 montre schématiquement en position relative croisée des organes d'affûtage.
In the appended drawings, given by way of nonlimiting examples:
  • . Figure 1 is a side elevational view of a knife according to the invention engaged in a sheath according to the invention, a sheath of this sheath being seen in longitudinal section and the handle of the knife being cut away;
  • . there Figure 2 is a front view of the sharpening cartridge, along the plane II-II of Figure 1;
  • . Figure 3 is a view of the sheath in section along the plane III-III of Figure 1 when the sharpening members are in the rest position;
  • . Figure 4 is a view similar to Figure 3, but showing the housing of the sharpening cartridge alone;
  • . Figure 4a shows, enlarged the detail of figure 4:
  • . Figure 5 is a sectional view of the housing of the sharpening cartridge according to the plane VV of Figure 1;
  • . Figure 6 is a perspective view with section and cutaway illustrating certain dimensional and spatial relationships in the sharpening sheath and between it and the blade of the knife;
  • . Figure 7 is an enlarged view partially showing the mask in which the knife blade is engaged, seen in cross section;
  • . Figure 8 is a front view of one of the elements of the mask;
  • . Figure 9 is a view of the cartridge, partially in longitudinal section along the plane IX-IX of Figure 10, and how it cooperates with the blade of the knife at the start of introduction or at the end of extraction;
  • . Figure 10 is a section along the plane XX of Figure 9, the knife blade attacking the sharpening members in the rest position;
  • . Figure 31 is a view similar to Figure 10 but with the knife blade at the end of introduction or at the start of extraction; and
  • . Figure 12 shows schematically in a cross relative position of the sharpening members.

L'ensemble représenté à la figure 1 comprend un fourreau 1 formé à son tour d'une gaine 2 en matière plastique semi-rigide dont une face inférieure 3 est plane pour constituer une semelle et une face supérieure 4 est inclinée de façon que la gaine 2 soit plus étroite à une extrémité postérieure fermée 6 qu'à une extrémité antérieure ouverte 7. Au voisinage de l'extrémité antérieure 7, la semelle 3 est coudée de façon à être décollée d'un plan d'appui 8 (par exemple une table) pour la semelle 3. Dans cette région coudée, la semelle 3 présente deux entailles longitudinales (non représentées) définissant entre elles une lame 9 terminée par une languette 11 sur laquelle un utilisateur peut appuyer pour rapprocher la lame 9 du plan 8 par déformation élastique sensiblement au niveau du coude entre-la lame 9 et la semelle 3 proprement dite.The assembly represented in FIG. 1 comprises a sheath 1 formed in its turn by a sheath 2 of semi-rigid plastic material of which a lower face 3 is planar to constitute a sole and an upper face 4 is inclined so that the sheath 2 is narrower at a closed rear end 6 than at an open front end 7. In the vicinity of the front end 7, the sole 3 is bent so as to be detached from a support plane 8 (for example a table) for the sole 3. In this bent region, the sole 3 has two longitudinal notches (not shown) defining between them a blade 9 terminated by a tongue 11 on which a user can press to bring the blade 9 closer to the plane 8 by deformation elastic substantially at the elbow between the blade 9 and the sole 3 proper.

Dans l'ouverture 7 de la gaine 2 est montée de manière amovible, une cartouche d'affûtage 12 s'étendant sensiblement jusqu'au coude entre la semelle 3 et la lame 9. Pour son montage amovible, le boîtier en matière plastique 13 de la cartouche 12 porte à sa base un ergot 14 engagé dans une lumière 16 de la lame 9 au voisinage de la languette 11. Le boîtier 13 présente une paroi frontale 17 formant sur tout son pourtour un épaulement 18 appuyé contre l'extrémité ouverte 7 de la gaine 2 lorsque l'ergot 14 est engagé dans la lumière 16.In the opening 7 of the sheath 2 is removably mounted, a sharpening cartridge 12 extending substantially up to the elbow between the sole 3 and the blade 9. For its removable mounting, the plastic housing 13 of the cartridge 12 carries at its base a lug 14 engaged in a lumen 16 of the blade 9 in the vicinity of the tongue 11. The housing 13 has a front wall 17 forming over its entire periphery a shoulder 18 pressed against the open end 7 of the sheath 2 when the lug 14 is engaged in the slot 16.

La gaîne 2 et le boîtier 13 forment le corps du fourreau au sens de l'invention.The sheath 2 and the housing 13 form the body of the sheath within the meaning of the invention.

Comme le montrent les figures 2 à 5, le boîtier 13 de la cassette 12 est constitué de deux demi-corps 13a et 13b assemblés l'un à l'autre selon un plan longitudinal médian 19 qui est également le plan longitudinal médian de la gaine 2 lorsque la cartouche y est montée. Les deux demi-corps 13a et 13b sont assemblés l'un à l'autre par encliguetage . Plus prément (Fig.4a), le demi-corps 13a présente deux boutonnières 21 qui font saillie au-delà du plan 19 et dans lesquelles s'engagent des bossages 22 portés par le demi-corps 13b sur sa face supérieure au voisinage du plan 19. Les demi-corps 13a et 13b comprennent des parois 23 délimitant entre elles un volume intérieur sensiblement parallélépipédique 24. A leur extrémité inférieure, les parois 23 forment deux lèvres longitudinales 26 se côtoyant de part et d'autre du plan 19. La lèvre 26 du demi-corps 13b porte en saillie au-delà du plan 19 deux tenons 27 fendus axialement pour être compressibles radialement, engagés chacun dans un orifice 28 de l'autre lèvre 26. Les tenons 27 sont terminés par une surépaisseur 29 verrouillant cet interengagement.As shown in Figures 2 to 5, the housing 13 of the cassette 12 consists of two half-bodies 13a and 13b assembled to each other along a median longitudinal plane 19 which is also the median longitudinal plane of the sheath 2 when the cartridge is mounted therein. The two half-bodies 13a and 13b are assembled to one another by interlocking. More specifically (Fig. 4a), the half-body 13a has two buttonholes 21 which protrude beyond the plane 19 and into which engage bosses 22 carried by the half-body 13b on its upper face in the vicinity of the plane 19. The half-bodies 13a and 13b comprise walls 23 delimiting between them an interior volume that is substantially parallelepipedic 24. At their lower end, the walls 23 form two longitudinal lips 26 side by side on either side of the plane 19. The lip 26 of the half-body 13b projects beyond the plane 19 two pins 27 axially split to be radially compressible, each engaged in an orifice 28 in the other lip 26. The pins 27 are terminated by an extra thickness 29 locking this interengagement .

Dans l'espace 24 sont montés quatre organes d'affûtage 31 comprenant chacun un bloc abrasif 32 (Fig.6) dont la région postérieure est sertie dans une monture métallique à profil en U 33, au moyen de crevés 35 dans les ailes latérales de ces montures. Les organes d'affûtage 31 sont disposés les uns à la suite des autres selon une direction longitudinale du fourreau L De plus, chaque bloc abrasif 32 présente, à l'opposé de sa monture 31, un profil d'affûtage 34 qui, vu selon la direction longitudinale du fourreau 1, est en position croisée par rapport au(x) profil(s) d'affûtage du ou des blocs abrasifs 32 voisin(s). Les profils d'affûtage 34 successifs sont alternativement tournés d'un côté et de l'autre lorsqu'ils sont vus selon la direction longitudinale du fourreau. Les montures 31 successives sont inclinées alternativement d'un côté et de l'autre du plan longitudinal médian 19. Leur fond, opposé au profil d'affûtage 34, se prolonge en une lamelle élastiquement flexible 36 En une position de repos des organes 31,chaque lamelle 36 s'étend sensiblement dans le plan P jusqu'à un pied 37 qui porte également l'autre organe d'affûtage 31 dont le profil 34 est tourné du même côté. Chaque pied 37 est réalisé monobloc avec les deux lamelles 36 et les deux montures 31 qu'il porte, à partir d'une découpe en tôle. De plus, les deux pièces monoblocs ainsi nécessaires pour porter les quatre blocs abrasifs 32 sont identiques, mais retournées de 180° l'une par rapport à l'autre, leurs pieds 37 étant l'un contre l'autre et leurs lamelles 36 les unes à côté des autres. Chaque pied 37 présente deux perçages 38 qui sont dans le prolongement dès deux perçages 38 de l'autre pied 37. Comme le montre la figure 3, les pieds 37 sont en service pincés entre les deux lèvres 26 des demi-corps 13a et 13b et chaque tenon élastique 27 est engagé dans deux perçages 38 alignés. Les lamelles 36 occupent sensiblement la moitié inférieure de la hauteur de l'espace 24 et les organes d'affùtage 31 la moitié supérieure de ladite hauteur. A la jonction entre chaque lamelle 36 et la monture 31 qu'elle porte, la tôle constituant ces deux éléments est cambrée de façon que les profils d'affûtage 34 soient dirigés obliquement vers le haut. Ainsi, en raison de leur disposition croisée, les profils d'affûtage vus selon la direction longitudinale du fourreau (figure 12) définissent entre eux une cavité d'affûtage 39, sensiblement en V, au-dessus de leur point d'intersection P, et une région 41 de chevauchement des organes d'affûtage au-dessous de leur point d'intersection P.In the space 24 are mounted four sharpening members 31 each comprising an abrasive block 32 (FIG. 6) whose posterior region is crimped in a metal frame with U-shaped profile 33, by means of punctures 35 in the lateral wings of these mounts. The sharpening members 31 are arranged one after the other in a longitudinal direction of the sheath L In addition, each abrasive block 32 has, opposite its mount 31, a sharpening profile 34 which, seen according to the longitudinal direction of the sheath 1, is in a crossed position with respect to the sharpening profile (s) of the adjacent abrasive block or blocks 32. The successive sharpening profiles 34 are alternately turned on one side and on the other when they are seen in the longitudinal direction of the sheath. The successive frames 31 are inclined alternately on one side and the other of the median longitudinal plane 19. Their bottom, opposite to the sharpening profile 34, extends into an elastically flexible strip 36 In a rest position of the members 31, each strip 36 extends substantially in the plane P up to a foot 37 which also carries the other sharpening member 31 whose profile 34 is turned on the same side. Each foot 37 is made in one piece with the two strips 36 and the two mounts 31 that it carries, from a sheet metal cutout. In addition, the two monoblock parts thus necessary to carry the four abrasive blocks 32 are identical, but turned 180 ° relative to each other, their feet 37 being one against the other and their lamellae 36 the side by side. Each foot 37 has two holes 38 which are an extension of two holes 38 of the other foot 37. As shown in FIG. 3, the feet 37 are in use pinched between the two lips 26 of the half-bodies 13a and 13b and each elastic stud 27 is engaged in two aligned holes 38. The slats 36 occupy substantially the lower half of the height of the space 24 and the sharpening members 31 the upper half of said height. At the junction between each strip 36 and the frame 31 which it carries, the sheet metal constituting these two elements is bent so that the sharpening profiles 34 are directed obliquely upwards. Thus, due to their crossed arrangement, the sharpening profiles seen in the longitudinal direction of the sheath (FIG. 12) define between them a sharpening cavity 39, substantially in V, above their point of intersection P, and a region 41 of overlap of the sharpening members below their point of intersection P.

A la figure 3, les organes d'affûtage 31 sont montres dans leur position de repos dans laquelle la cavité d'affûtage 39 a sa dimension minimale et la région de chevauchement 41 sa dimension maximale. Les organes d'affûtage 31 sont rappelés en permanence vers cette position par la déformation élastique des lamelles 36 qui les porte.In FIG. 3, the sharpening members 31 are shown in their rest position in which the sharpening cavity 39 has its minimum dimension and the overlapping region 41 its maximum dimension. The sharpening members 31 are permanently recalled towards this position by the elastic deformation of the lamellae 36 which carries them.

Conformément à l'invention, le boîtier 13 de la cartouche comprend des moyens de butée 42 qui coopèrent avec les profils d'affûtage 34 pour définir la position de repos des organes d'affûtage 31. Dans l'exemple représenté, chaque demi-corps 13a, 13b comporte deux nervures monoblocs avec la paroi 23, et qui sont transversales à la direction longitudinale du fourreau. Chaque nervure 42 est située face à l'un des deux profils d'affûtage 34 qui est tourné vers le demi-corps 13a ou 13b qui la porte. Chaque nervure 42 est rattachée à la paroi 23 du demi-corps qui la porte, et plus précisément, à sa région supérieure 23a et en haut de sa région latérale 23b. Chaque nervure 42 a un bord inférieur 42a, sensiblement perpendiculaire au plan 19, et un bord latéral 42b qui est parallèle au plan 19 et se trouve en retrait par rapport au plan 19 d'une distance e 2 égale à la moitié de l'épaisseur e d'un trajet 44 prévu pour la lame à affûter. On comprend qu'ainsi, comme le montrent la figure 4 et en particulierAccording to the invention, the housing 13 of the cartridge comprises stop means 42 which cooperate with the sharpening profiles 34 to define the rest position of the sharpening members 31. In the example shown, each half-body 13a, 13b has two one-piece ribs with the wall 23, which are transverse to the longitudinal direction of the sheath. Each rib 42 is located opposite one of the two sharpening profiles 34 which faces the half-body 13a or 13b which carries it. Each rib 42 is attached to the wall 23 of the half-body which carries it, and more precisely, to its upper region 23a and at the top of its lateral region 23b. Each rib 42 has a lower edge 42a, substantially perpendicular to the plane 19, and a lateral edge 42b which is parallel to the plane 19 and is set back from the plane 19 by a distance e 2 equal to half the thickness. e of a path 4 4 provided for the blade to be sharpened. We understand that thus, as shown in Figure 4 and in particular

la figure 4a, la lame sera guidée latéralement le long du trajet 44 par les quatre bords 42b des quatre nervures 42 situées successivement d'un côté et de l'autre du plan 19.FIG. 4a, the blade will be guided laterally along the path 44 by the four edges 42b of the four ribs 42 located successively on one side and the other of the plane 19.

Le trajet 44 est encore défini par une rainure longitudinale43 qui est réservée entre les régions supérieures 23a des demi-corps 13a et 13b. Le fond 43a de la nervure 43 est matérialisé par la face inférieure des boutonnières 21. La rainure 43 a une largeur e égale à la distance entre les bords 42b vus selon la direction longitudinale du fourreau. Ainsi, les bords 42b des nervures 42 sont à l'aplomb des bords 43b de la rainure 43.The path 44 is further defined by a longitudinal groove43 which is reserved between the upper regions 23a of the half-bodies 13a and 13b. The bottom 43a of the rib 43 is materialized by the underside of the buttonholes 21. The groove 43 has a width e equal to the distance between the edges 42b seen in the longitudinal direction of the sheath. Thus, the edges 42b of the ribs 42 are perpendicular to the edges 43b of the groove 43.

Les bords 42a et 42b de chaque nervure 42 sont réunis l'un à l'autre par un chanfrein 42c destiné à recevoir en appui l'un des profils d'affûtage 34 pour définir sa position de repos. L'inclinaison des chanfreins 42c par rapport au plan 19 est choisie pour correspondre sensiblement à celle que présente en position de repos la région des profils 34 s'appuyant sur les chanfreins.The edges 42a and 42b of each rib 42 are joined to each other by a chamfer 42c intended to receive in support one of the sharpening profiles 34 to define its rest position. The inclination of the chamfers 42c with respect to the plane 19 is chosen to correspond substantially to that which the region of the profiles 34 resting on the chamfers has in the rest position.

En position de repos définie par les chanfreins 42c, les profils d'affûtage 34 se croisent symétriquement par rapport au plan 19 lorsqu'on regarde selon la direction longitudinale du fourreau.In the rest position defined by the chamfers 42c, the sharpening profiles 34 intersect symmetrically relative to the plane 19 when looking in the longitudinal direction of the sheath.

Comme chaque chanfrein ou butée 42c se trouve en deçà du trajet 44 réservé à la lame, il ne gêne pas l'évolution de celle-ci. Chaque profil d'affûtage 34 destiné à coopérer avec la lame de l'un des côtés du plan 19 coopère en position de repos avec un chanfrein 42c situé de l'autre côté du plan 19, et s'appuie sur ce chanfrein par une région située en dessous-du point P porté par le plan 19, autrement dit par une région adjacente à la région 41 de chevauchement des organes d'affûtage 31.As each chamfer or stop 42c is located below the path 44 reserved for the blade, it does not hinder the evolution of the latter. Each sharpening profile 34 intended to cooperate with the blade on one side of the plane 19 cooperates in the rest position with a chamfer 42c situated on the other side of the plane 19, and is supported on this chamfer by a region located below the point P carried by the plane 19, in other words by a region adjacent to the region 41 of overlap of the sharpening members 31.

Selon une autre particularité de l'invention, en position de repos des organes d'affûtage 31, les lamelles 36 sont dans un état précontraint appliquant les blocs abrasifs 32 avec un certain effort contre les nervures 42. Ainsi, à mesure que les blocs abrasifs 32 s'usent, les lamelles 36 peuvent utiliser leur course élastique résiduelle pour toujours ramener les profils d'affûtage 34 dans la position de repos bien déterminée par les chanfreins 42c.According to another characteristic of the invention, in the rest position of the sharpening members 31, the blades 36 are in a prestressed state applying the abrasive blocks 32 with a certain force against the ribs 42. Thus, as the abrasive blocks 32 wear out, the blades 36 can use their residual elastic stroke to always bring the sharpening profiles 34 back to the rest position well determined by the chamfers 42c.

Comme le montre la figure 11, les organes d'affûtage 31 peuvent, moyennant flexion supplémentaire dans les lamelles 36, être mutuellement écartés de manière à élargir et rendre plus profonde la cavité d'affûtage 39. Les profils d'affûtage 34 ont une courbure convexe étudiée pour que l'angle formé au point d'intersection P au fond de la cavité 39 soit sensiblement constant quel que soit l'écartement mutuel des organes 31.As shown in FIG. 11, the sharpening members 31 can, with additional flexion in the lamellae 36, be mutually separated so as to widen and deepen the cavity sharpening 39. The sharpening profiles 34 have a convex curvature studied so that the angle formed at the point of intersection P at the bottom of the cavity 39 is substantially constant whatever the mutual spacing of the members 31.

Comme le montre la figure 1, l'ensemble décrit comprend également un couteau 46 comprenant un manche 47 et une lame 48 dont un bord longitudinal constitue un dos 49 et le bord opposé une arête tranchante 51 terminée à l'opposé du manche 47 par une pointe 52.As shown in FIG. 1, the assembly described also comprises a knife 46 comprising a handle 47 and a blade 48, one longitudinal edge of which constitutes a back 49 and the opposite edge a cutting edge 51 terminated opposite the handle 47 by a tip 52.

Le dos 49 de la lame est rectiligne sur la majeure partie de sa longueur, le long d'une région appelée L à la figure 1. Au voisinage de la pointe 52, il s'incurve fortement pour rejoindre celle-ci par un bout 53 s'étendant selon une direction transversale à la lame et notamment à la région L.Dans le fourreau,l,la, région L du dos 49 est parallèle à la direction longitudinale du fourreau,elle-même parallèle à la face 4 de la gaine 2. Selon une particularité importante de l'ense mble couteau-fourreau, la distance h (figure 1) entre la pointe 52 et le prolongement de la région L est égale ou peu inférieure à la distance H entre le point P lorsque les organes 31 sont en position de repos (figure 10) et le fond 43a de la rainure 43. Ainsi, lorsqu'on engage le couteau 46 en maintenant son dos 49 contre le fond 43a de la nervure 43, la pointe 52 du couteau 46 peut s'engager dans la cavité d'affûtage 39 juste au-dessus du point P d'intersection des profils d'affûtage 34.The back 49 of the blade is rectilinear over most of its length, along a region called L in FIG. 1. In the vicinity of the point 52, it curves strongly to reach the latter by a tip 53 extending in a direction transverse to the blade and in particular to the region L. In the sheath, l, la, region L of the back 49 is parallel to the longitudinal direction of the sheath, itself parallel to the face 4 of the sheath 2. According to an important characteristic of the ens mble knife-sheath, the distance h (FIG. 1) between the tip 52 and the extension of the region L is equal to or slightly less than the distance H between the point P when the members 31 are in the rest position (Figure 10) and the bottom 43a of the groove 43. Thus, when engaging the knife 46 while holding its back 49 against the bottom 43a of the rib 43, the tip 52 of the knife 46 can s' engage in the grinding cavity 39 just above the point P of intersection of the grinding profiles 34.

L'arête tranchante 51 présente sur toute sa longueur, par rapport au dos 49, une inclinaison dans le sens convergeant vers la pointe 52 . Ainsi, une fois la pointe 52 engagée dans la cavité d'affûtage 39 comme il a été dit plus haut, l'arête tranchante 51 rencontre rapidement l'intersection P des profils 34 puis repousse régulièrement les organes d'affûtage 31 à l'écart les uns des autres jusqu'à ce que le point P (figure 11) se trouve à faible distance de l'extrémité inférieure des blocs abrasifs 32 lorsque le manche 47 est en butée contre la paroi frontale 17 comme représenté à la figure 1. Ceci assure que les profils d'affûtage travaillent et par conséquent s'usent sur une grande partie de leur hauteur lorsque le couteau est introduit et extrait, et travaillent notamment dans la région où ils s'appuient contre les chanfreins 42c lorsqu'ils sont en position de repos.The cutting edge 51 has over its entire length, relative to the back 49, an inclination in the direction converging towards the tip 52. Thus, once the tip 52 is engaged in the sharpening cavity 39 as mentioned above, the cutting edge 51 quickly meets the intersection P of the profiles 34 then regularly pushes the sharpening members 31 away the from each other until point P (FIG. 11) is a short distance from the lower end of the abrasive blocks 32 when the handle 47 is in abutment against the front wall 17 as shown in FIG. 1. This ensures that the sharpening profiles work and therefore wear out over a large part of their height when the knife is inserted and extracted, and work in particular in the region where they bear against the chamfers 42c when they are in the position of rest.

Comme le montre la figure 2, la paroi frontale 17 est constituée en deux parties réalisées chacune d'un seul tenant avec l'un des demi-corps 13a ou 13b. Les deux parties de la paroi 17 définissent entre elles une ouverture 54 donnant à la lame 48 un accès à son trajet 44 dans la cartouche 12. L'ouverture 54 s'étend sensiblement sur la moitié de la hauteur de la paroi 17. Elle a la même largeur e que le trajet 44. Son extrémité supérieure est dans le prolongement du fond 43a de la rainure 43.As shown in Figure 2, the front wall 17 consists of two parts each made in one piece with one of the half-bodies 13a or 13b. The two parts of the wall 17 define between them an opening 54 giving the blade 48 access to its path 44 in the cartridge 12. The opening 54 extends substantially over half the height of the wall 17. It has the same width e as the path 44. Its upper end is an extension of the bottom 43a of the groove 43.

Selon une autre particularité de l'invention, la cartouche 12 comprend en outre des moyens 56 pour masquer partiellement l'ouverture 54 et plus particulièrement pour masquer la région -inférieure- de l'ouverture 54 qui est en regard de la région 41 de chevauchement des organes d'affûtage 31 en position de repos.According to another feature of the invention, the cartridge 12 further comprises means 56 for partially masking the opening 54 and more particularly for masking the -lower- region of the opening 54 which is opposite the region 41 of overlap sharpening members 31 in the rest position.

Les moyens de masquage 56 comprennent deux fils métalliques élastiques 57 qui s'étendent l'un à la suite de l'autre derrière l'ouverture 54, dans le sens de la hauteur de cette dernière. Comme le montre la figuré 6 où l'intersection des profils est matérialisée par la ligne en trait mixte P, cette position relative des deux fils 57 est réalisée en dessous de I'intersection P, c'est-à-dire en regard de la région de chevauchement des profils 31 en position de repos. Au-dessus de l'intersection P considérée en position de repos des organes d'affütage, les deux tiges 57 s'écartent, progressivement l'une de l'autre pour déga- ger la région supérieure, alignée avec la cavité d'affûtage, de l'ouverture 54. Comme le montre la figure 5, les tiges 57 sont cintrées à l'écart l'une de l'autre à leur extrémité supérieure pour s'appuyer chacune derrière un bossage 58 porté par l'un des demi-corps 13a, 13b de part et d'autre du trajet 44. Les tiges 57 sont guidées dans un plan parallèle â celui de l'ouverture 54. Pour cela, leurs extrémités supérieures sont guidées entre la paroi frontale 17 et une ailette 70 parallèle à la paroi 17. A leur extrémité inférieure, les deux tiges 57 sont pincées l'une derrière l'autre entre les deux lèvres 26 des demi-corps 13a et 13b et sont recourbées à angle droit l'une à 1'écart de l'autre pour pénétrer chacune dans un trou d'ancrage 59 de l'une des lèvres 26.The masking means 56 comprise two elastic metal wires 57 which extend one after the other behind the opening 54, in the direction of the height of the latter. As shown in FIG. 6 where the intersection of the profiles is materialized by the dashed line P, this relative position of the two wires 57 is produced below the intersection P, that is to say opposite the overlapping region of the profiles 31 in the rest position. Above the intersection P considered in the rest position of the grinding bodies, the two rods 57 diverge progressively from each other to DEGA - ger the upper region aligned with the grinding cavity , of the opening 54. As shown in FIG. 5, the rods 57 are bent away from each other at their upper end to bear each behind a boss 58 carried by one of the half -body 13a, 13b on either side of the path 44. The rods 57 are guided in a plane parallel to that of the opening 54. For this, their upper ends are guided between the front wall 17 and a wing 70 parallel at the wall 17. At their lower end, the two rods 57 are pinched one behind the other between the two lips 26 of the half-bodies 13a and 13b and are bent at right angles one away from the other to penetrate each into an anchoring hole 59 of one of the lips 26.

Comme le montre la figure 8, chaque tige 57 a à sa base un cambrage 61 dirigé en sens contraire du cambrage 62 de son extrémité supérieure. Ainsi, l'appui de l'extrémité supérieure de chaque tige 57 derrière le bossage 58 associé précontraint les tiges 57 en flexion, ce qui leur confère à chacune une courbure assurant entre elles le dégagement de la partie supérieure de l'ouverture 54. Grâce à cette particularité, le fond du dégagement peut avoir un angle A (figure 2) très réduit et inférieur à l'angle B sous lequel les profils 34 se croisent.As shown in Figure 8, each rod 57 has at its base a camber 61 directed in the opposite direction from the camber 62 of its upper end. Thus, the support of the upper end of each rod 57 behind the associated boss 58 prestresses the rods 57 in bending, which gives them each a curvature ensuring between them the release of the upper part of the opening 54. Thanks to this feature, the bottom of the clearance may have a very small angle A (FIG. 2) and less than the angle B under which the profiles 34 intersect.

Dans l'exemple représenté, la lame 48 a une épaisseur constante, voisine de'e (figure 7) sauf dans une bande évidée 63 ménagée de chaque côté de la lame 48 à partir du tranchant 51 pour amincir symétriquement la lame 48 depuis sa région à épaisseur constante jusqu'à Son arête 51. Les deux bandes êyidées 63 forment entre elles un angle C qui est également supérieur à l'angle A.In the example shown, the blade 48 has a constant thickness, close to 'e (Figure 7) except in a recessed band 63 formed on each side of the blade 48 from the cutting edge 51 to symmetrically thin the blade 48 from its region of constant thickness up to its edge 51. The two eyid bands 63 form an angle C which is also greater than the angle A.

Comme le montre la figure 5, 1a cartouche 12 comprend également une paroi arrière 64 dont les deux parties, liées chacune à l'un des demi-corps 13a ou 13b, définissent entre elles une ouverture allongée 65 sensiblement située dans le prolongement de l'ouverture 54 traversant la paroi frontale 17. Il est ainsi créé à l' intérieur du fourreau 1 pour la lame 48 un passage comprenant l'ouverture 54, le trajet 44, l'ouverture 65, et enfin l'intérieur creux de la gaine 2.As shown in FIG. 5, the cartridge 12 also comprises a rear wall 64, the two of which parts, each linked to one of the half-bodies 13a or 13b, define between them an elongated opening 65 substantially situated in the extension of the opening 54 passing through the front wall 17. It is thus created inside the sheath 1 for the blade 48 a passage comprising the opening 54, the path 44, the opening 65, and finally the hollow interior of the sheath 2.

Le fonctionnement de l'ensemble qui vient d'être décrit est le suivant:

  • En l'absence de la lame 48, les organes d'affûtage 31 prennent leur position de repos. Si l'on désire remiser le couteau 46 dans son fourreau 1, on engage la pointe 52 dans l'ouverture 54 et plus précisément dans le dégagement supérieur entre les tiges 57. A ce sujet, il est préférable que ce dégagement s'étende au moins sur la hauteur h (figure 6), mais si tel n'est pas le cas, on peut malgré tout introduire la pointe 52 en inclinant le manche du couteau vers le bas, après quoi, on redresse le couteau pour écarter légèrement les tiges 57. De toute façon, lorsqu'on poursuit l'introduction de la lame 48, celle-ci, dont la hauteur est croissante, écarte de plus en plus l'une de l'autre les tiges 57 dont les extrémités supérieures décollent de leur bossage d'appui 58 (figure 5). Comme le montre la figure 7, les conditions exposées plus haut sur les angles A, B et C font que la lame 48 s'appuie sur les tiges 57 par la ligne de jonction 66 entre les bandes évidées 63 et la région à épaisseur constante e de la lame 48. Au contraire, l'arête 51 est libre de tout contact avec les tiges 57 qui pourraient l'endommager.
The operation of the assembly which has just been described is as follows:
  • In the absence of the blade 48, the sharpening members 31 take their rest position. If one wishes to store the knife 46 in its sheath 1, the point 52 is engaged in the opening 54 and more precisely in the upper clearance between the rods 57. In this regard, it is preferable that this clearance extends to less on the height h (Figure 6), but if this is not the case, we can still introduce the tip 52 by tilting the knife handle down, after which we straighten the knife to slightly spread the rods 57. In any case, when the introduction of the blade 48 is continued, the latter, whose height is increasing, moves the rods 57 more and more apart from one another, the upper ends of which take off from their support boss 58 (Figure 5). As shown in FIG. 7, the conditions exposed above on the angles A, B and C mean that the blade 48 rests on the rods 57 by the junction line 66 between the hollowed bands 63 and the region with constant thickness e of the blade 48. On the contrary, the edge 51 is free from any contact with the rods 57 which could damage it.

L'introduction de la lame se poursuivant, la pointe 52 s'engage dans la cavité d'affûtage 39 comme il a été dit plus haut. Les tiges 57 tendant à prendre leur tension élastique minimale, c'est-à-dire leur écartement minimal, le dos de la lame 49 est appliqué contre le fond 43a de la rainure 43 et contre le bord supérieur de l'ouverture 54, ce qui assure qu'effectivement la pointe 52 pénétrera dans la cavité d'affûtage 39 et ne vient pas heurter le premier bloc abrasif 32.The introduction of the blade continuing, the tip 52 engages in the grinding cavity 39 as was said above. The rods 57 tend to take their minimum elastic tension, that is to say their minimum spacing, the back of the blade 49 is applied against the bottom 43a of the groove 43 and against the upper edge of the opening 54, which effectively ensures that the tip 52 will penetrate into the sharpening cavity 39 and does not strike the first abrasive block 32.

Compte tenu de l'inclinaison de l'arête 51 par rapport au dos 49 de la lame 48, l'introduction progressive de la lame 48 dans la cavité d'affûtage 39 provoque l'écartement progressif des organes d'affûtage 31. Cependant, comme l'angle entre les profils 34 croisés est sensiblement constant quel que soit l'écartement entre les profils, les conditions d'affûtage sont les mêmes tout le long de l'arête 51. De leur côté, les blocs abrasifs 32 s'usent de manière répartie sur leur longueur, et non pas localisée.Given the inclination of the edge 51 relative to the back 49 of the blade 48, the gradual introduction of the blade 48 into the sharpening cavity 39 causes the progressive separation of the sharpening members 31. However, as the angle between the crossed profiles 34 is substantially constant whatever the spacing between the profiles, the sharpening conditions are the same all along the edge 51. On the other hand, the abrasive blocks 32 wear out distributed over their length, not localized.

Comme le montre la figure 9, la pointe 52 ayant traversé la cavité d'affûtage, sort de la cartouche 12 par l'ouverture 65 pour pénétrer dans l'espace libre à l'intérieur de la gaine 2. La fin de la course d'introduction est définie par butée du manche 47 contre la paroi frontale 17 de la cartouche.As shown in Figure 9, the tip 52 having passed through the sharpening cavity, leaves the cartridge 12 through the opening 65 to enter the free space inside the sheath 2. The end of the stroke d 'introduction is defined by abutment of the handle 47 against the front wall 17 of the cartridge.

Lors du retrait de la lame, la cavité d'affûtage se referme progressivement jusqu'à reprendre sa position de repos lorsque la pointe 52 en a été extraite.When removing the blade, the sharpening cavity gradually closes until it returns to its rest position when the tip 52 has been extracted from it.

Grâce à la faible différence entre les hauteurs h et H (figure 6), l'affûtage de la lame 51 commence au voisinage immédiat de la pointe 52. Cette particularité se conserve tout au long de la vie de l'appareil, malgré l'usure des profils d'affûtage 34. En effet, la cavité d'affûtage est définie par des profils 34 et c'est par rapport à ceux-ci, par l'intermédiaire des butées 42c, qu'est définie la position de repos des organes d'affûtage 31.Thanks to the small difference between the heights h and H (Figure 6), the sharpening of the blade 51 begins in the immediate vicinity of the tip 52. This feature is preserved throughout the life of the device, despite the wear of the sharpening profiles 34. In fact, the sharpening cavity is defined by profiles 34 and it is in relation to these, by means of the stops 42c, that the rest position of the sharpening devices 31.

De plus, les nervures 42, portant les butées 42c, assurent à la lame 48 un très bon guidage latéral évitant tout coincement de la lame dans le fourreau.In addition, the ribs 42, carrying the stops 42c, provide the blade 48 with very good lateral guidance preventing any jamming of the blade in the sheath.

Bien entendu, l'invention n'est pas limiée aux exemples décrits et représentés, et de nombreux aménagements peuvent être apportés à ces exemples sans sortir de l'invention.Of course, the invention is not limited to the examples described and shown, and numerous modifications can be made to these examples without departing from the invention.

C'est ainsi qu'il pourrait.n'y avoir que deux organes d'affûtage. De plus, les organes d'affûtage, au lieu d'être mobiles indépendamment les uns des autres comme dans l'exemple représenté, pourraient avoir des mouvements rendus symétriques par un couplage mécanique auquel cas il suffirait d'une butée coopérant avec l'un des organes d'affûtage.Thus there could be only two sharpening members. In addition, the sharpening members, instead of being movable independently of one another as in the example shown, could have movements made symmetrical by a mechanical coupling in which case it would suffice with a stop cooperating with one sharpening devices.

Le dispositif de masquage partiel de l'ouverture 54 pourrait être constitué par un volet coulissant chargé par un ressort.The device for partially masking the opening 54 could consist of a sliding shutter loaded by a spring.

Claims (11)

1. Fourreau aiguiseur comprenant un corps (2, 13) dans lequel est délimité un passage (54, 44, 65, 2) destiné à recevoir une lame (48), une ouverture d'accès (54) à l'une des extrémités dudit passage, des moyens d'appui (43a) ménagés dans le passage pour le dos de la lame, un dispositif d'affûtage (31, 36, 37) fixé au corps (2, 13) au voisinage de l'ouverture d'accès (54), le dispositif d'affûtage comprenant au moins deux organes d'affûtage (31) décalés selon la direction longitudinale du passage et présentant des profils d'affûtage croisés (34) délimitant entre eux une cavité d'affûtage (39) et une région (41) de chevauchement mutuel des organes d'affûtage (31), et des moyens élastiques (36) sollicitant les organes d'affûtage (31) vers une position de repos dans un sens tendant à fermer la cavité d'affûtage (39) en augmentant le chevauchement des organes d'affûtage, car actérisé en ce que les moyens élastiques (36) sont précontraints en position de repos et en ce que le fourreau porte intérieurement des organes de butée (42c) qui, en position de repos des organes d'affûtage (31), coopèrent avec le profil d'affûtage (34) de ceux-ci dans leur région de chevauchement mutuel (41), en dehors d'un trajet (44) réservé à la lame (48).1. Sharpening scabbard comprising a body (2, 13) in which a passage (54, 44, 65, 2) is delimited intended to receive a blade (48), an access opening (54) at one of the ends said passage, support means (43a) formed in the passage for the back of the blade, a sharpening device (31, 36, 37) fixed to the body (2, 13) in the vicinity of the opening of access (54), the sharpening device comprising at least two sharpening members (31) offset in the longitudinal direction of the passage and having crossed sharpening profiles (34) delimiting between them a sharpening cavity (39) and a region (41) of mutual overlap of the sharpening members (31), and elastic means (36) urging the sharpening members (31) towards a rest position in a direction tending to close the sharpening cavity (39) by increasing the overlap of the sharpening members, because actuated in that the elastic means (36) are prestressed in the rest position and in that the sheath carries internally abutment members (42c) which, in the rest position of the sharpening members (31), cooperate with the sharpening profile (34) thereof in their region of mutual overlap (41), outside of 'A path (44) reserved for the blade (48). 2. Fourreau conforme à la revendication 1, caractérisé en ce que les organes d'affûtage (31) sont mobiles indépendamment l'un de l'autre et en ce que les moyens de butée comprennent deux butées (42c) coopérant chacun avec l'un des organes d'affûtage (31) et ayant entre elles, vue selon la direction du passage, une distance (e) appropriée pour le passage d'une lame (48) de couteau (46).2. Sheath according to claim 1, characterized in that the sharpening members (31) are movable independently of one another and in that the stop means comprise two stops (42c) each cooperating with the one of the sharpening members (31) and having between them, seen in the direction of passage, a distance (e) suitable for the passage of a blade (48) of knife (46). 3. Fourreau conforme à la revendication 2, caractérisé en ce que les butées (42c) sont prolongées vers l'extrémité évasée de la cavité d'affûtage (39) par deux guidages latéraux (42b) pour la lame (48) de couteau.3. Sheath according to claim 2, characterized in that the stops (42c) are extended towards the flared end of the sharpening cavity (39) by two lateral guides (42b) for the knife blade (48). 4. Fourreau conforme aux revendications 1 à 3; caractérisé en ce que les moyens de butée (42c) sont portés par au moins une nervure (42) ménagée à l'intérieur du corps (2, 13) et s'étendant transversalement à la direction d'introduction de la lame.4. Sheath according to claims 1 to 3; characterized in that the stop means (42c) are carried by at least one rib (42) formed inside the body (2, 13) and extending transversely to the direction of insertion of the blade. 5. Fourreau conforme aux revendications 1 à 4, caractérisé en ce qu'il comprend au voisinage de l'ouverture d'accès un masque (57) obturant sensiblement l'ouverture d'accès (54) en regard de la région (41) de chevauchement des organes d'affûtage (31) et en ce que ce masque est élastiquement effaçable par déplacement dans un plan transversal à la direction d'introduction.5. scabbard according to claims 1 to 4, characterized in that it comprises in the vicinity of the access opening a mask (57) substantially closing the access opening (54) facing the region (41) overlapping of the sharpening members (31) and in that this mask is elastically erasable by displacement in a plane transverse to the direction of introduction. 6. Fourreau conforme à la revendication 5, caractérisé en ce que le masque comprend deux éléments (57) adjacents l'un à l'autre en regard de la région (41) de chevauchement des organes d'affûtage (31) et s'écartant progressivement l'un de l'autre pour dégager l'ouverture d'accès (54) à son extrémité qui est en regard de la cavité d'affûtage (39).6. scabbard according to claim 5, characterized in that the mask comprises two elements (57) adjacent to each other opposite the region (41) of overlap of the sharpening members (31) and s' gradually moving away from each other to release the access opening (54) at its end which is opposite the grinding cavity (39). 7. Fourreau conforme à la revendication 6, caractérisé en ce que deux éléments sont des pièces métalliques élastiques (57).7. Sheath according to claim 6, characterized in that two elements are elastic metallic parts (57). 8. Fourreau conforme à la revendication 6 ou 7, caractérisé en ce que les éléments (57) forment entre eux, dans là région où H amorce leur écartement mutuel, un angle (A) inférieur à celui (B) existant entre les profils d'affûtage au point (P) où ils se croisent.8. Sheath according to claim 6 or 7, characterized in that the elements (57) form between them, in the region where H initiates their mutual spacing, an angle (A) less than that (B) existing between the profiles d sharpening at point (P) where they intersect. 9. Combinaison d'un fourreau aiguiseur selon l'une des revendications 1 à 8 et d'un couteau (46) comprenant un manche (47) et. une lame (48) ayant une arête coupante (51) et un dos (49) opposé à cette arête, caractérisée en ce que le fourreau (1) comprend intérieurement une surface d'appui glissant (43a) pour le dos de la lame (48), en ce qu'une partie au moins (L) du dos de la lame est sensiblement rectiligne et adaptée à glisser sur la surface d'appui glissant (43a), et en ce que la distance (h) entre une pointe (52) de la lame (48) et le prolongement de la partie rectiligne (L) du dos (49) est égale ou peu inférieure à la distance (H) entre la surface d'appui (43a) et le fond de la cavité d'affûtage (P) lorsque les organes d'affûtage (31) sont en position de repos.9. Combination of a sharpening sheath according to one of claims 1 to 8 and a knife (46) comprising a handle (47) and. a blade (48) having a cutting edge (51) and a back (49) opposite this edge, characterized in that the sheath (1) internally comprises a sliding bearing surface (43a) for the back of the blade (48), in that at least part (L) of the back of the blade is substantially straight and adapted to slide on the sliding bearing surface (43a), and in that the distance ( h) between a point (52) of the blade (48) and the extension of the straight part (L) of the back (49) is equal to or slightly less than the distance (H) between the bearing surface (43a) and the bottom of the sharpening cavity (P) when the sharpening members (31) are in the rest position. 10. Combrnaiaon conforme à la revendication 9, caractériséaen ce que la partie rectiligne (L) du dos (49) s'étend jusqu'au voisinage de la pointe (52) et rejoint celle-ci par un bout (53) s'étendant selon une direction transversale de la lame (48).10. Combrnaiaon according to claim 9, characterized in that the rectilinear part (L) of the back (49) extends to the vicinity of the point (52) and joins the latter by an end (53) extending in a transverse direction of the blade (48). 11.Combmaiaon conforme à la revendication 9 ou 10, caractérisée en ce que par rapport à la partie sensiblement rectiligne (L) du dos (49) de la lame (48), l'arête (51) de la lame a sensiblement sur toute sa longueur une obliquité dans le sens convergeant vers la point (52) de la lame (48).11.Combmaiaon according to claim 9 or 10, characterized in that relative to the substantially straight portion (L) of the back (49) of the blade (48), the edge (51) of the blade has substantially all its length an obliquity in the direction converging towards the point (52) of the blade (48).
EP86400144A 1985-01-30 1986-01-24 Sharpening sheath and the same in combination with a knife Withdrawn EP0193424A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8501293A FR2576537B1 (en) 1985-01-30 1985-01-30 SHARPENING SLEEVE AND ITS COMBINATION WITH A KNIFE
FR8501293 1985-01-30

Publications (1)

Publication Number Publication Date
EP0193424A1 true EP0193424A1 (en) 1986-09-03

Family

ID=9315777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400144A Withdrawn EP0193424A1 (en) 1985-01-30 1986-01-24 Sharpening sheath and the same in combination with a knife

Country Status (6)

Country Link
US (1) US4718200A (en)
EP (1) EP0193424A1 (en)
JP (1) JPS61178164A (en)
CA (1) CA1246341A (en)
DE (1) DE193424T1 (en)
FR (1) FR2576537B1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794738A (en) * 1987-03-30 1989-01-03 Giovanni Brignoli Knife sheath incorporating sharpening means for the blade
US5077901A (en) * 1990-05-18 1992-01-07 Warner Joseph A Ceramic blades and production methodology therefor
US5390431A (en) * 1992-06-18 1995-02-21 Edgecraft Corporation Method and apparatus for knife and blade sharpening
US5245756A (en) * 1992-09-28 1993-09-21 Howell David M Lockable knife block
US6224475B1 (en) * 1999-02-26 2001-05-01 The Pampered Chef, Ltd. Sharpener sheath
USD424906S (en) * 1999-02-26 2000-05-16 The Pampered Chef, Ltd. Sharpener sheath
US7140113B2 (en) * 2001-04-17 2006-11-28 Lazorblades, Inc. Ceramic blade and production method therefor
US6643934B2 (en) * 2001-10-01 2003-11-11 Major Harold Pope Self-sharpening pocket knife
US6626066B2 (en) * 2002-01-02 2003-09-30 Rudolf Koppe Folding sharpener tool
DE102004006714A1 (en) * 2004-02-11 2005-08-25 Harald Stallegger Sharpening device for knives were has sharpening bars in housing with front and rear wall forming knife insertion aperture, with parallel slots
SG177352A1 (en) * 2009-06-22 2012-02-28 Mcphersons Ltd Blade scabbard, sharpener and sharpening cassette
US8276768B1 (en) 2010-06-15 2012-10-02 Johnson Bart A Magnetic knife guard device
US10091948B2 (en) * 2014-07-02 2018-10-09 Wicked Tuff Gear, Llc Light pole saw
US10945381B1 (en) 2014-07-02 2021-03-16 Outdoor Product Innovations, Inc. Modular tools with detachable coupling
FR3109110B1 (en) 2020-04-14 2022-04-29 Seb Sa SHARPENER SHEATH ADAPTED TO RECEIVE A KNIFE AND COMBINATION OF SUCH A SHEATH AND A KNIFE
FR3109111B1 (en) 2020-04-14 2023-03-03 Seb Sa SHARPENER SHEATH ADAPTED TO RECEIVE A KNIFE AND COMBINATION OF SUCH A SHEATH AND A KNIFE
US11229984B1 (en) 2020-07-24 2022-01-25 Kenneth A. Wildman Knife sharpening apparatus and method
US11534013B2 (en) * 2020-10-26 2022-12-27 Danny Fagioli Pizza cutter cleaning, storage, and isolation device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885836A (en) * 1957-08-29 1959-05-12 Martial J Robitaille Knife honing and sharpening device
FR2321372A1 (en) * 1975-08-22 1977-03-18 Wiltshire Cutlery Co Pty SHARPENING DEVICE FOR KNIFE OR SIMILAR BLADES
FR2333614A1 (en) * 1975-12-04 1977-07-01 Wiltshire Cutlery Co Pty SHARPENER
EP0110661A2 (en) * 1982-11-24 1984-06-13 McPherson's Limited Knife sharpener and scabbard

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE644875C (en) * 1935-07-30 1937-05-14 Ind A G Allegro Grinding device for knives of different widths
US2893178A (en) * 1958-04-18 1959-07-07 John E O'riordan Automatic knife sharpener and holder
JPS4840843U (en) * 1971-09-17 1973-05-24
JPS512108B2 (en) * 1971-09-23 1976-01-23
CA1023945A (en) * 1973-03-26 1978-01-10 Wiltshire Cutlery Company Proprietary Limited Blade sharpening device
CA1027135A (en) * 1973-06-11 1978-02-28 Research Corporation Bone-seeking technetium-99m complex
JPS5268785A (en) * 1975-12-05 1977-06-07 Taiheiyo Kogyo Kk Method of sterilizing foodstuff loaded in then wall containers by microwave heating
US4091691A (en) * 1976-11-30 1978-05-30 Wiltshire Cutlery Company Proprietary Ltd. Knife sharpener
JPS5624542A (en) * 1979-08-03 1981-03-09 Omron Tateisi Electronics Co Detecting method of leakage of liquid
GB2111415B (en) * 1981-11-26 1985-07-03 Wilkinson Sword Ltd Knife sharpeners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885836A (en) * 1957-08-29 1959-05-12 Martial J Robitaille Knife honing and sharpening device
FR2321372A1 (en) * 1975-08-22 1977-03-18 Wiltshire Cutlery Co Pty SHARPENING DEVICE FOR KNIFE OR SIMILAR BLADES
FR2333614A1 (en) * 1975-12-04 1977-07-01 Wiltshire Cutlery Co Pty SHARPENER
EP0110661A2 (en) * 1982-11-24 1984-06-13 McPherson's Limited Knife sharpener and scabbard

Also Published As

Publication number Publication date
US4718200A (en) 1988-01-12
JPS61178164A (en) 1986-08-09
CA1246341A (en) 1988-12-13
FR2576537A1 (en) 1986-08-01
FR2576537B1 (en) 1988-12-02
DE193424T1 (en) 1987-01-15

Similar Documents

Publication Publication Date Title
EP0193424A1 (en) Sharpening sheath and the same in combination with a knife
FR2565117A1 (en) Cross-country ski, ski boot and guide
EP2786789B1 (en) Device for adjusting the position of the boot support pad in a ski binding system
EP0422382B1 (en) Device to oppose backward gliding for cross-country skiing
FR2565116A1 (en) Cross country ski with boot and guide
CH633723A5 (en) SECURITY FIXING FOR SKIING.
FR2651145A1 (en) SECURITY FASTENING FOR SKIING.
FR2600291A1 (en) Attachment device connecting a windscreen wiper arm and a caliper holding a wiper blade
FR2684889A1 (en) INTERFACE PART FOR THE SLIDE OF A FIXING ELEMENT, ESPECIALLY ALPINE FIXING.
EP0217423A1 (en) Ski shoe
FR2776556A1 (en) STAPLE PUSH STORE FOR MANUAL STAPLER OF FRAMES
FR2575704A1 (en) Writing implement of the pen or pencil or suchlike variety, with retractable writing tip
FR2616575A1 (en) STORAGE CASE FOR INFORMATION CARRIER
FR2827538A1 (en) Cigar cutting tool comprises rectangular body, with articulated cutting blade received in body slit, body bore receiving cigar end when blade is outside slit
FR2821580A1 (en) Cigar cutting tool comprises body forming handle with cutting blade articulated at end and slot for receiving blade
FR3040651A3 (en) BLADE FOR A HAND CUTTING TOOL, ASSOCIATED CUTTING TOOL, AND ASSEMBLY COMPRISING SUCH A CUTTING TOOL AND CUTTING TOOL
CH656542A5 (en) SECURITY FIXING FOR SKIING.
FR2928575A1 (en) Pocket knife, has spring leaf adapting locking position in which mobile part is situated in plane of blade and takes support at rear of blade, and unlocking position in which mobile part is deported laterally with respect to plane of blade
EP4135931A1 (en) Sharpening sheath adapted to receive a knife, and combination of such a sheath and a knife
FR2797569A1 (en) Extendable table has plates sliding along guiding slots in order to make space enough for fitting extra leaf
CH647450A5 (en) Blade assembly for razor
FR2716828A1 (en) Device for rapidly fixing blade on sawing machine
CA3173816A1 (en) Sharpening sheath adapted to receive a knife, and combination of such a sheath and a knife
FR2745223A1 (en) Blade fixing mechanism for oscillating saw
FR2614540A1 (en) Tool for adjusting a ski binding

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19860129

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

TCAT At: translation of patent claims filed
TCNL Nl: translation of patent claims filed
DET De: translation of patent claims
17Q First examination report despatched

Effective date: 19870908

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19881128

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MIQUELOT, GILLES