EP2308647B1 - Vorrichtung zur Präzisionsverstählung/-bearbeitung von Messerkanten - Google Patents

Vorrichtung zur Präzisionsverstählung/-bearbeitung von Messerkanten Download PDF

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Publication number
EP2308647B1
EP2308647B1 EP10013214.1A EP10013214A EP2308647B1 EP 2308647 B1 EP2308647 B1 EP 2308647B1 EP 10013214 A EP10013214 A EP 10013214A EP 2308647 B1 EP2308647 B1 EP 2308647B1
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EP
European Patent Office
Prior art keywords
edge
guide
knife
steel
blade
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Ceased
Application number
EP10013214.1A
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English (en)
French (fr)
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EP2308647A1 (de
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 of EP2308647A1 publication Critical patent/EP2308647A1/de
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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

  • 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.
  • 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 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 in 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 member13 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 be 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.
  • FIGS 16, 17, 18 and 19 Alternative, not claimed examples of a precision angle guiding structure 29 to develop these desirable edge microstructures 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 An example of a not claimed structure of creating a 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 Y-Y 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 Y-Y is approximately half of the thickness of blade 1. If desired 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.
  • both edge facets can be conditioned simultaneously.
  • By adding more than two rods 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 comer 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.
  • This aspect of the invention generally involves providing 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.
  • 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 space
  • 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)

Claims (10)

  1. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) mit zwei Flächen (3), wobei jede Fläche (3) bei einer Facette (2) endet, die sich treffen, um eine Kante (6) zu erzeugen, wobei die Vorrichtung eine Präzisionswinkelführung (15) aufweist, die an einem einzelnen, langgestreckten Handwetzstahl (19) angebracht ist, der eine gehärtete Oberfläche besitzt, die glatt und nicht-scheuernd ist, wobei die Vorrichtung durch Folgendes gekennzeichnet ist:
    die Winkelführung (15) ist direkt an dem Wetzstahl (19) angebracht, wobei die Winkelführung eine planare Führungsoberfläche (7) aufbaut, die einen anhaltenden Gleit- oder Rollkontakt mit einer ersten Fläche (3) der Klinge (1) vorsieht, so dass die Ebene der Kantenfacette (2) benachbart zu der zweiten Fläche (3) der Klinge (1) bei einem präzise eingestellten Winkel relativ zu der Ebene der Wetzstahloberfläche bei dem Kontaktpunkt der Facette (2) mit der Oberfläche des Wetzstahls (19) gehalten wird, und
    wobei die Winkelführung (15) in anpassbarer Weise angebracht und an dem Handwetzstahl (19) verriegelbar ist, um die Position der Winkelführung (15) auf dem Wetzstahl zu steuern, um frische Bereiche der Stahloberfläche für den Kontakt mit der Facette (2) vorzusehen, so dass die gehärtete Oberfläche des Wetzstahls (19) in Kombination mit der Messerführung (15) eine mikrogezackte Kante oder Mikrostruktur entlang der Kante (6) der Messerklinge (1) erzeugen kann.
  2. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) gemäß Anspruch 1, wobei die Führungsoberfläche (7) einen spitzen Winkel mit der Achse des Handwetzstahls (19) bildet.
  3. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) gemäß Anspruch 1 oder 2, wobei eine Feder (21) an der Winkelführung (15) angebracht ist, um die Fläche (3) der Klinge (1) in engem Kontakt mit der Führungsoberfläche (7) zu halten, während die Messerfläche (3) über die Führungsoberfläche (7) gezogen wird, und/oder wobei ein Magnet an der Winkelführung angebracht ist, um die Klinge (1) zu der Führungsoberfläche (7) anzuziehen.
  4. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) gemäß einem der vorangehenden Ansprüche, wobei die Winkelführung (15) an einem der Folgenden angebracht ist: einem Essensschneidebrett (48), einem "Butcher Block" bzw. Hackblock (46) oder einem Messerblock (52).
  5. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) gemäß einem der vorangehenden Ansprüche, einschließlich einer Basisstruktur (23), wobei die Basisstruktur (23) eine Anbringungsstruktur (16) zur Anbringung an einem Handwetzstahl (19) aufweist, wobei die Anbringungsstruktur (16) einen Verriegelungsmechanismus (17) zum Halten des Wetzstahls (19) in einer feststehenden Position besitzt, und wobei die Präzisionswinkelführung (15) an der Basisstruktur (23) angebracht ist und ihre Führungsoberfläche (7) so in Bezug auf die Anbringungsoberfläche (16) angeordnet ist, dass eine Facette (2) der geführten Messerklingenkante die Oberfläche des Wetzstahls (19) anhaltend mit einem präzise eingestellten Winkel berührt, während das Messer (1) entlang der Führungsoberfläche (7) der Winkelführung (15) bewegt wird.
  6. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) gemäß Anspruch 5, wobei zwei Winkelführungen (15) einander gegenüberliegend gelegen sind, und wobei die Anbringungsstruktur (16) zwischen den Winkelführungen (15) positioniert ist, und wobei die Anbringungsstruktur (16) optional einen Kragen aufweist, und der Verriegelungsmechanismus (17) einen Schwenkhebel (18) aufweist, um selektiv einen Nocken zu betätigen, so dass dieser gegen den Wetzstahl (19) angeordnet wird.
  7. Vorrichtung zum manuellen Verstählen der Kante (6) einer Messerklinge (1) gemäß Anspruch 5 oder 6, wobei eine Feder (21) in Richtung des Kontakts mit der Führungsoberfläche (7) angebracht ist, um es der Messerklinge (1) zu ermöglichen, zwischen die Feder (21) und die Winkelführung (15) eingeführt zu werden.
  8. Vorrichtung zur manuellen Verstählung der Kante einer Messerklinge (1) gemäß irgendeinem der vorangehenden Ansprüche, wobei die Messerführung in anpassbarer Weise angebracht ist, um den Wetzstahl auf und ab zu bewegen, um frische Bereiche der Verstählungsoberfläche vorzusehen.
  9. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) gemäß irgendeinem der vorangehenden Ansprüche, wobei die Messerkante (15) in drehbarer Weise anpassbar an dem Wetzstahl angebracht ist, um frische Bereiche der Verstählungsoberfläche vorzusehen.
  10. Vorrichtung zur manuellen Verstählung der Kante (6) einer Messerklinge (1) gemäß irgendeinem der vorangehenden Ansprüche, wobei die Messerführung (15) einen Kragen aufweist, der eng um den Wetzstahl (19) angebracht ist, um die anpassbare Anbringung zu ermöglichen.
EP10013214.1A 2004-05-06 2005-05-06 Vorrichtung zur Präzisionsverstählung/-bearbeitung von Messerkanten Ceased EP2308647B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56883904P 2004-05-06 2004-05-06
EP05747954A EP1748868B1 (de) 2004-05-06 2005-05-06 Vorrichtung für das präzisionsverstählen/konditionieren von messerschneiden

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EP2308647B1 true EP2308647B1 (de) 2014-01-08

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EP05747954A Ceased EP1748868B1 (de) 2004-05-06 2005-05-06 Vorrichtung für das präzisionsverstählen/konditionieren von messerschneiden

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005108011A2 (en) * 2004-05-06 2005-11-17 Edgecraft Corporation Apparatus for precision steeling/conditioning of knife edges
CN102941514B (zh) * 2006-02-23 2015-03-25 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
US11376713B1 (en) 2021-03-09 2022-07-05 Sharkninja Operating Llc Knife sharpening systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005108011A2 (en) * 2004-05-06 2005-11-17 Edgecraft Corporation Apparatus for precision steeling/conditioning of knife edges

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1181161A (en) 1915-06-21 1916-05-02 Reuben W Perry Knife-sharpener.
GB621715A (en) * 1947-02-21 1949-04-14 William Goodenough Improvements in and relating to sharpening steels for cutlery
US3619955A (en) * 1970-06-12 1971-11-16 Eric Fischback Grinding attachments for surface grinders
US4627194A (en) * 1984-03-12 1986-12-09 Friel Daniel D Method and apparatus for knife and blade sharpening
US5404679A (en) * 1984-03-12 1995-04-11 Edgecraft Corporation Portable manual sharpener for knives and the like
US5046385A (en) * 1991-01-25 1991-09-10 Cozzini, Inc Cutting edge straightening, aligning and sharpening device
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
DE602004017437D1 (de) 2003-03-27 2008-12-11 Edgecraft Corp Präzisionsmittel zum schärfen und erzeugen von mikroklingen entlang von schneidkanten

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005108011A2 (en) * 2004-05-06 2005-11-17 Edgecraft Corporation Apparatus for precision steeling/conditioning of knife edges

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WO2005108011A2 (en) 2005-11-17
EP1748868B1 (de) 2012-03-07
EP2308647A1 (de) 2011-04-13
WO2005108011A3 (en) 2007-06-07
EP1748868A4 (de) 2007-09-26
EP1748868A2 (de) 2007-02-07

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