EP1748868B1 - Appareil d'acierage/conditionnement precis de tranches de couteau - Google Patents

Appareil d'acierage/conditionnement precis de tranches de couteau Download PDF

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Publication number
EP1748868B1
EP1748868B1 EP05747954A EP05747954A EP1748868B1 EP 1748868 B1 EP1748868 B1 EP 1748868B1 EP 05747954 A EP05747954 A EP 05747954A EP 05747954 A EP05747954 A EP 05747954A EP 1748868 B1 EP1748868 B1 EP 1748868B1
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EP
European Patent Office
Prior art keywords
edge
guide
steeling
blade
knife
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP05747954A
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German (de)
English (en)
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EP1748868A4 (fr
EP1748868A2 (fr
Inventor
Daniel D. Friel, Sr.
Daniel D. Friel, Jr.
Robert P. Bigliano
Abraham Leibson
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Edgecraft Corp
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Edgecraft Corp
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Publication date
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Priority to EP10013214.1A priority Critical patent/EP2308647B1/fr
Publication of EP1748868A2 publication Critical patent/EP1748868A2/fr
Publication of EP1748868A4 publication Critical patent/EP1748868A4/fr
Application granted granted Critical
Publication of EP1748868B1 publication Critical patent/EP1748868B1/fr
Ceased legal-status Critical Current
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    • 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

Definitions

  • WO 2004./087319 A2 (state of the art according to Art.54(3) EPC) relates to a sharpener having a sharpening steel and an angle guide, which are at fixed positions with respect to each other. Furthermore, US 1,181,161 relates to a knife sharpener having an elongated abrasive sharpening rod, to which a clamp carrying a knife guide is attached. The clamp is provided to firmly grasp the sharpening rod during sharpening of a knife.
  • an apparatus for manually steeling the edge of a knife blade as set forth in claim 1 is provided. Further embodiments of the invention are claimed in the dependent claims.
  • the unique microstructure which can be created along the knife edge consists of a remarkably uniform series of microteeth with dimensions generally equal to or less than the width of a human hair.
  • the microteeth are very regular, and strong and they can be readily recreated along the edge if any are damaged in use of the knife edge. Creation of this microstructure requires that the knife edge facets be held at a precise and reproducible angle relative to the sharpening steel, stroke after stroke. Under optimum conditions, the desired edge structure develops with only a small number of such strokes across the edge of the hardened surface or steel. Further unlike manual steeling which has lacked reproducible control of the angle, under the conditions described here the edge is not dulled, instead the original sharpening angle is retained even after hundreds of steeling-like strokes - so long as precise control of the angle is maintained.
  • the sharpening steel has proven to be a poor haphazard and inconsistent tool for improving the cutting ability of a knife edge. Even the most skillful and persevering artisans who use a steel end up with edges of poor edge quality, not very sharp and very fragile requiring re-steeling after every 50 or so cuts. Frequent resharpening of the edge with an abrasive stone has proven necessary and the life of the knife is consequently shortened.
  • a conventional knife blade 1, shown in section , Figure 3 has two faces 3 which are sharpened at their terminus to form two facets 2 which converge along a line creating the edge 6.
  • Sharpening as contrast to steeling a knife blade involves the use of abrasives to physically abrade away metal of the blade along each side of the knife edge creating edge facets 2 on each side of the edge 6.
  • FIG. 4 represents a typical blade where the facets 2 are sharpened at an angle A relative to the respective faces 3 of the blade. If the sharpening angle A is precisely established as created with a precision sharpening means such as shown in Figure 5 the edge facets subsequently can be precisely positioned using the same reference plane namely the face 3 of the blade.
  • the sharpening means illustrated in Figure 5 uses the face of the blade 3 as a reference plane for the blade that rests on a guide face 8 and alternating on guide face 8a.
  • the facet 2 is moved into contact with the surface of abrasive disk 9 which at the contact point with the facet is set at angle A relative to the guide surface 8 and the blade face 3.
  • the abrasive coated disks 9 and 9a are rotated by a motor driven shaft 10. Pins 12 on the shaft engage in slots that are part of the disk support structure in order to rotate the disks.
  • Each of the two blade facets are commonly sharpened at the same angle A.
  • FIG 8 The desirable microstructure that can be created by the precise control of the angular relationship of the plane of the edge facet with the plane of the hardened surface is illustrated in Figure 8 .
  • an incredibly regular row of microteeth is created along the knife edge. If individual microteeth along the edge are damaged or broken off when the blade is used for cutting, those microteeth will be replaced by successive movement of the facet along the hardened surface, alternating the strokes along one side of the edge and then the other.
  • the repeated and alternating stresses created along the cutting edge by this motion hardens the knife's metal, making it more brittle and prone to fracture and fragment. This causes small sections of the edge to drop off leaving a microtooth-like structure along the edge. As one continues to stroke the edge on alternate sides of the edge, more microteeth drop off as new microteeth are formed. That process can be repeated many times.
  • the hardened contact surface 5 of member 13 will initially make contact with the facet only at the extremity of the facet 2, Figure 9 adjacent to the edge. As the burr is removed, the hardened surface will also remove microscopic amounts of metal adjacent to the edge and the lower most section of the facet will after many strokes, begin to be re-angled to an angle closer to that of the hardened surface. Thus a line and larger area of contact 2A, Figure 10 develops between the lower section of the facet and the contacted surface 5 on the hardened member.
  • This growing area of contact 2A, Figure 10 resulting from many repetitive strokes of the facet against the hardened surface is important to stabilize the localized pressure against the developing edge structure and thereby to reduce the probability of prematurely breaking off the microteeth during subsequent reconditioning of the edge.
  • This mechanism which relies on the highly precise and consistent angular relation between the facet and hardened surface reduces the opportunity for the hardened surface to impact under the edge and knock off the microteeth by that impact rather than by the desirable repetitive wearing along the side of the facet and the resulting stress hardening and fracturing process.
  • the hardened member 13 can be a manual "sharpening" steel.
  • Such steels are sold with a variety of surface treatment and hardness. Consequently some will be better than others in developing the unique microstructure described here and represented in Figure 8 .
  • most manual steels are of a quality that can produce good results if an adequately precise angle control is provided to orient the plane of the edge facet precisely and preferably within 5-10 degrees of the plane of the steel surface at the point of contact with the edge facet.
  • the reference to “sharpening steel” is not intended to be limited to, for example, steeling rods made of steel, although that is the preferred practice of the invention. Instead, other equivalent materials could be used.
  • the materials should have a hardened surface which contacts the knife edge and should be of a hardness harder than that of the knife edge.
  • the hardened surface can have a hardness above Rockwell C-60.
  • Such "sharpening steel” should be capable of developing the microstructure described here as represented in Figure 8 .
  • angle guide structure can be designed so that the manual steels or short lengths of manual steel rods can be mounted onto the guide support structure. These must have the required precision to control accurately the angular position of the knife and its facets relative to the surface of the steel stroke after stroke in order to create the optimum microstructure referred to in this patent.
  • Several examples of such designs are described here to be representative of a large variety of designs that incorporate the necessary angular accuracy and reproducibility.
  • the hardened surface of the object which conditions the knife edge should be non-abrasive.
  • the invention can be broadly practiced where the hardened surface is slightly abrasive. What is important is that the hardened surface should be sufficiently smooth or non-abrasive so that in combination with the knife guide the combination comprises means to minimize interference with burr removal and to repeatedly create and fracture a microstructure along the edge of the blade at the extreme terminus of the edge facets during repeated contact of the facets and the hardened surface to create a microserrated edge.
  • the hardened surface of the steeling rod would have a surface roughness no greater than 10 microns.
  • FIG. 11,12 and 13 An example of a precision knife guide 15 that can be mounted on a manual steel 19 or a section thereof is shown in Figures 11,12 and 13 .
  • This guide 15 is constructed with a tight sleeve-like collar that fits snugly around the steel and which can be provided with a locking mechanism 17 for example that cams against the steel and can be tightened by a manually operated lever 18 to position this guide at any desired location along the length of the steel.
  • the mounting and locking structure must be designed with sufficient care that the guide planes are held firmly and securely relative to the steel 19 as the face 3 of knife 1, Figures 12 and 15 is moved along and in intimate contact with the guide planes surface 7.
  • An optional spring 21 can be provided to insure that the face of blade 1, Figure 15 is pressed into intimate contact with the guide surface face 7 on every stroke.
  • the guiding surface forms an acute angle with the surface of the manual steel in order that the knife facet is stopped by the steel as the knife edge is pressed into the acute angular vertex formed by the guide and the
  • the spring 21 is designed to conform closely to the geometry of the guide planes 7 in the absence of the blade.
  • Spring 21 can be supported and centered as shown by the steel rod or alternatively it can be supported by the base structure 23 for the guides. As shown in Figure 14 it can extend the full length of the guide planes to provide support along the length of the blade and to press the blade against the surface of the guide including the tip of the blade as it is withdrawn along the guide structure.
  • the springs can as designed with short "feet" 25 that insert through matching slots in the guide plates 27 to hold the springs down and in place.
  • This precision guide can be moved up or down the steel or it can be rotated around the steel to provide fresh areas of the steel surface for contact with the edge facets as previously used areas show significant wear.
  • the guide can be readily moved and relocked in the new position.
  • angle C of the guide planes is shown as fixed, it should be clear that interchangeable guide plates 27 with different angles can be made available to coordinate with the angle of the sharpening device used initially to abrade and set the angles A of the edge facets.
  • the guide 15 and the guide plates 27 can be designed so that the angle C is adjustable and individually angularly adjustable.
  • a spring 21 to hold the blade precisely is desirable for the best results but its use is of course optional.
  • a full length manual steel or a shorter section of steel can be used in this design. If a conventional steel is used, its point or end can be rested on a table or counter as shown in Figure 1 . Alternatively as described later this type guiding mechanism can be mounted on a table or counter and a steel or an equivalent rod can be mounted in and clamped to the angle guide.
  • Embodiments of precision angle guiding structure 29 to develop these desirable edge microstructures in accordance with the invention are shown in Figures 16, 17, 18 and 19 .
  • Each of these contain a support structure 31 with one or more vertical slots 33 to align precisely moving knife guides 29 with one or more steels 13.
  • the knife guide planes 7 are consequently set at angle C relative to the plane of the steel rods 13 at the point where the facets of knife 1 will contact the steel rods. (It should be recognized that hardened steel rods or bars of shapes and surface structures other than the conventional steel rods can be used in these designs.)
  • Figures 16 and 17 As one face of knife 1, Figures 16 and 17 is positioned in intimate contact with the guide plane 7 it can be moved along that guide plane while the edge facet remains in contact with the steel rods 13.
  • the spring 39 is desirable but not necessary to insure good contact of the blade face with guide plane 7.
  • a second spring mechanism 41 shown in Figure 18 can be incorporated to hold the moving guides 35 in a rest position but to allow the moving guides 35 to be displaced downward by the user as he applies a downward force on the blade as its face is held in contact with the knife guide plane 7 and the edge facet is held in contact with the surface of the steel 13. This unique design allows a facet of the blade simultaneously to move transversely to the surface of the hardened steel 13 and to move longitudinally along the surface of the steel.
  • pin 43 extends thru one of the guide slots to prevent any change in alignment of the sliding guide structure 35 with the axis of the steel rods. Similar pins 45 extend into the slots 33 into close conformity with the slot width to prevent lateral movement of the moving guide structure, 35.
  • the hardened steel rods 13 can be rigidly mounted onto base structure 31 or they can be supported on a slightly elastomeric or spring-like substrate that will allow them to move laterally a small amount in response to any significant variation in pressure from the knife edge structure as it impacts the steel surface.
  • the rate at which the desired microstructure develops and is reconstituted along the knife edge is related to amount of pressure applied by the knife edge facet as it is moved in contact with the hardened steel surface. There is a large amplification of the force applied manually to the blade as that is translated to the small area or line of contact between the facet and the steel surface at the movement of contact. That stress level can be moderated and made more uniform by only a very slight lateral motion of the steel surface.
  • the guide and the knife holding spring mechanism of Figure 19 can be readily modified to include a longer knife guiding surface and a second spring extending to the opposite side of the steel rod with larger guide surfaces similar to those of Figures 16 and 18 .
  • the knife holding spring 38 of Figure 17 likewise can be on one or both areas of each guide surface.
  • the guide support arms can be designed to be replaceable or adjustable to provide the means to vary or set angle C optimally in relation to the original sharpening angle A that created the original angle of the knife facets.
  • FIG. 24 and 25 A further example of a structure of creating this unique microscopic structure along a knife edge is illustrated in Figures 24 and 25 .
  • a fixed knife guide plane 7 is created on one side of a rigid planar guide structure 50 attached to the body of 51 of the steeling apparatus 53.
  • Sections of steel rods 19 are mounted by threaded ends into the body of apparatus 53.
  • the two steel sections are crossed as seen in Figure 24 at a total angle equal to twice angle C.
  • the edge X of knife blade 1 is lowered into a slot 55 until its facets 2 contact one or both of the steel rods along the line of the edge. More than two steel rods 19 can be aligned in this manner in order to create a well defined line of contact for the knife edge facets with these steel rods 19.
  • the guide structure 50 which establishes the position and alignment of guide plane 7 is offset slightly to one side of the centerline ⁇ - ⁇ of the blade which passes thru the vertex of the angles C that coincides with the line where the steel rods 19 cross.
  • the amount of offset of plane 7 from the centerline ⁇ - ⁇ is approximately half of the thickness of blade 1.
  • the plane 7 can also be slightly angled in order to conform perfectly to any small taper that may characterize the blade faces.
  • a handle 57 can be provided to stabilize the unit as it is being used or alternatively it can be physically attached to a table or other structure.
  • the face of the knife is aligned with the guide plane 7 and held in good contact with that plane as the blade edge is stroked back and forth along the surface of the steel rods 19 until the desired microstructure is created along the cutting edge.
  • a physical spring (not shown) can be added to press against the blade and to hold its face in good sustained conformity with the guide surface.
  • a magnet can be added to attract the blade face to the guide face 7 as the blade is laid against that plane.
  • the areas of contact where the blade facets contact a selected point on the surface of the steel rods can be changed and adjusted by rotating the rods using the slots 59 to extend or retract the rods accordingly.
  • An obvious advantage of this configuration is that both edge facets can be conditioned simultaneously. By adding more than two rods even better confirmation of the facets with the rods can be obtained. Without the precise angular control shown in this apparatus, the optimal microstructure will not be created along the knife edge.
  • Precision apparatus such as described here for control of the angle while steeling a knife can be incorporated into food related work areas such as into butcher blocks, cutting boards, and knife racks or knife blocks so that they are conventionally and readily available in those areas where knives are commonly used.
  • Figure 22 illustrates how for example the guide 15 of Figures 11, 12, 13 and 14 can be attached to a counter butcher block.
  • a manual butcher steel can be inserted into the guide structure as shown in Figure 22 or a section of a steel or hardened steel rod can be mounted in the guide structure as in Figure 21 .
  • the guide structure can be attached by a bracket as shown or embedded in a corner or parameter section of a counter or block-like surface as illustrated in Figure 21 .
  • Figure 20 illustrates a mountable angle guide 15 designed to accept a manual steel 19 a section of a steel or a hardened metal rod.
  • This guide incorporates a convenient angle bracket so that it can be attached to any of a variety of knife work benches or work structure. For example it is shown attached to a knife block 52, Figure 23 . It can similarly be mounted on a salad prep table or work table, or butcher's block, Figure 22 .
  • Figure 21 illustrates an embedded guide structure 47 as it would be mounted in the corner of a butcher block or cutting board 48.
  • the length of a hardened steel rod 49 mounted in this guide can be shortened if desired so that it does not protrude above the top of the cutting board.
  • That hardened rod 49 is slotted so that it can be rotated with a coin or screw driver to expose new areas of its surface.
  • the rod 49 can be provided with an extended threaded section (not shown) on its lower end to allow the rod to move upward or downward as it is rotated to expose fresh areas of the rod surfaces.
  • Precision embedded guides such as illustrated in Figure 21 can be mounted entirely within the perimeter of butcher blocks, counters and knife blocks, thus avoiding the awkwardness of an attachment-like structure.
  • Figure 23 illustrates a mounted precision guide on a knife block.
  • the physical location of the guide can be on the side of such blocks or embedded within the top structure of such blocks so long as clearance is provided for the blade as it is moved along the guides and in contact with the guide planes.
  • Figures 21, 22, and 23 are intended only to be illustrative of the wide variety of locations where it is desirable to provide a means for precisely steeling the knife edge.
  • a holder which can mount the angle guide and the sharpening steel to a support surface such as a food cutting board or a butcher block.
  • Such holder would include first mounting structure to mount the holder itself to the support surface.
  • the first mounting structure could be of the type such as illustrated in Figure 22 where the holder itself is separate and distinct from the support surface and is mounted to the support surface by utilization of the downwardly extending flange connected to and extending away from the guide 15.
  • the first mounting structure could be by having the holder itself integral with the support structure.
  • the holder would also have second mounting structure for securing the steeling rod or hardened surface in a fixed position so that it is properly spaced with respect to the angle guide.
  • the angle guide itself would also be mounted to the holder.
  • microstructure that can be created if the knives steeled are with this level of angular control.
  • the microstructure provided by these guided means is superior to manually steeled edges for cutting fibrous materials such as lemons, limes, meats, cardboard and paper products to name a few.
  • the steeled edges remain sharp even after repetitive steeling and the knives need to be resharpened less frequently using abrasive means, thus removing less metal from the blades and lengthening the useful life of knives.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

L'invention porte sur un appareil d'aciérage ou conditionnement manuel de la tranche d'une lame de couteau, comprenant un guide d'angle de précision fixé à un fusil d'affûtage manuel. Le guide d'angle met en place une surface de guidage qui fournit un contact par coulissement ou roulement régulier avec la face de la lame de couteau de manière que le plan d'au moins une facette de la tranche contre la tranche de la lame soit maintenue selon un angle précisément défini par rapport au plan de la surface du fusil d'affûtage au niveau du point de contact de la facette avec la surface du fusil d'affûtage.

Claims (15)

  1. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1), comprenant un guide d'angle de précision (29) fixé à un fusil d'affûtage manuel généralement non abrasif (13, 19), le guide d'angle (29) définissant une surface de guidage (7) qui assure un contact coulissant ou roulant soutenu avec une face (3) de la lame (1) de sorte que le plan d'au moins une facette de tranchant (2) adjacente au tranchant de la lame (1) est maintenu à un angle établi avec précision par rapport au plan de la surface du fusil d'affûtage au niveau du point de contact de la facette (2) avec la surface du fusil d'affûtage (13, 19), et le guide d'angle (29) étant monté de façon coulissante sur une structure support (31) qui permet un mouvement du guide d'angle (29) dans une direction parallèle à l'axe du fusil d'affûtage (13) en réponse à une pression de la main appliquée sur la lame (1).
  2. Appareil pour affûter manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel la surface de guidage (7) fait un angle aigu avec l'axe du fusil d'affûtage manuel (13, 19).
  3. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, comprenant un ressort (21, 39) monté sur le guide d'angle (29) pour maintenir la face (3) de la lame (1) en contact intime avec la surface de guidage (7) lorsque la face de couteau (3) est tirée sur la surface de guidage (7).
  4. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel la surface de guidage (7) est plane.
  5. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel la surface de guidage (7) est allongée.
  6. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel un aimant est monté sur le guide pour attirer la lame (1) vers la surface de guidage (7).
  7. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel le guide d'angle de précision (15, 29) est monté de façon ajustable sur le fusil d'affûtage manuel (13, 19) pour contrôler l'angle d'affûtage d'un tranchant d'une lame de couteau (1).
  8. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel le guide (15) est fixé à une planche à découper des aliments (48).
  9. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel le guide (15) est fixé à un étal de boucher (46).
  10. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel le guide (15) est fixé à un porte-couteaux (52).
  11. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 1, dans lequel le fusil d'affûtage est une barre d'affilage durcie fixe (13), dans lequel pendant l'affûtage de la lame de couteau (1), une face (3) de la lame (1) est maintenue en contact soutenu avec le guide (29) et tirée manuellement le long du guide (29) et dans une direction nominalement perpendiculaire à l'axe de la barre d'affilage durcie (13).
  12. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 11, dans lequel le mouvement du guide (29) en réponse à une pression de la main appliquée sur la lame (1) subit la résistance d'un ressort d'appui (41).
  13. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 12, dans lequel le guide (29) est un premier guide de couteau à angle mobile (35) monté de façon coulissante sur une structure support (31) et un deuxième guide à angle mobile (35) monté sur la même structure (31), chacun des guides (35) étant monté de façon coulissante et de façon juxtaposée avec une barre d'affilage durcie (13) correspondante pour permettre aux guides (35) de se déplacer dans une direction parallèle à l'axe des barres (13) lorsque que chacun d'eux est déplacé manuellement par le mouvement du couteau (1) lorsqu'il est tiré dans une direction nominalement perpendiculaire à l'axe des barres (13) avec une facette de tranchant (2) en contact avec la barre d'acier durcie (13) correspondante.
  14. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 11, dans lequel une structure d'alignement (33, 34, 45) met en contact la structure de guidage (35) avec la structure support (31) pour maintenir constant l'angle de la surface de guidage (7) lorsque la structure de guidage (35) est déplacée en différentes positions par rapport à la structure support (31) et à la barre d'affilage (13).
  15. Appareil pour affiler manuellement le tranchant d'une lame de couteau (1) selon la revendication 11, dans lequel la structure support (31) supporte deux barres d'affilage espacées (13), et la structure de guidage comporte deux surfaces de guidage symétriques (7), chacune étant placée au niveau de l'une respective des barres d'affilage (13).
EP05747954A 2004-05-06 2005-05-06 Appareil d'acierage/conditionnement precis de tranches de couteau Ceased EP1748868B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10013214.1A EP2308647B1 (fr) 2004-05-06 2005-05-06 Appareil d'affilage/conditionnement précis de tranches de couteau

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56883904P 2004-05-06 2004-05-06
PCT/US2005/016258 WO2005108011A2 (fr) 2004-05-06 2005-05-06 Appareil d'acierage/conditionnement precis de tranches de couteau

Related Child Applications (1)

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EP10013214.1 Division-Into 2010-10-01

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EP1748868A2 EP1748868A2 (fr) 2007-02-07
EP1748868A4 EP1748868A4 (fr) 2007-09-26
EP1748868B1 true EP1748868B1 (fr) 2012-03-07

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EP05747954A Ceased EP1748868B1 (fr) 2004-05-06 2005-05-06 Appareil d'acierage/conditionnement precis de tranches de couteau

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11376713B1 (en) 2021-03-09 2022-07-05 Sharkninja Operating Llc Knife sharpening systems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005108011A2 (fr) * 2004-05-06 2005-11-17 Edgecraft Corporation Appareil d'acierage/conditionnement precis de tranches de couteau
CN101437653B (zh) * 2006-02-23 2013-01-02 埃奇克拉夫特公司 具有改进的刀导向件的刀刃磨器
CN107283330B (zh) * 2017-08-15 2023-11-10 上海盈凯工具有限公司 一种磨刃板

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US5163251A (en) * 1991-07-22 1992-11-17 David Lee Hand-held knife sharpener
US6371841B1 (en) * 1999-02-23 2002-04-16 Ralph Ray Knife maintenance apparatus having two distinct maintenance surfaces
EP1606077B1 (fr) 2003-03-27 2008-10-29 Edgecraft Corporation Moyens de precision pour affuter et creer des microlames le long d'aretes coupantes
WO2005108011A2 (fr) * 2004-05-06 2005-11-17 Edgecraft Corporation Appareil d'acierage/conditionnement precis de tranches de couteau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11376713B1 (en) 2021-03-09 2022-07-05 Sharkninja Operating Llc Knife sharpening systems
US11806839B2 (en) 2021-03-09 2023-11-07 Sharkninja Operating Llc Knife sharpening systems

Also Published As

Publication number Publication date
EP2308647B1 (fr) 2014-01-08
WO2005108011A3 (fr) 2007-06-07
EP1748868A4 (fr) 2007-09-26
EP2308647A1 (fr) 2011-04-13
WO2005108011A2 (fr) 2005-11-17
EP1748868A2 (fr) 2007-02-07

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