EP1304191A2 - Dispositif pour traiter le tranchant d'un couteau - Google Patents

Dispositif pour traiter le tranchant d'un couteau Download PDF

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Publication number
EP1304191A2
EP1304191A2 EP02023081A EP02023081A EP1304191A2 EP 1304191 A2 EP1304191 A2 EP 1304191A2 EP 02023081 A EP02023081 A EP 02023081A EP 02023081 A EP02023081 A EP 02023081A EP 1304191 A2 EP1304191 A2 EP 1304191A2
Authority
EP
European Patent Office
Prior art keywords
base plate
spring element
eccentric disc
slot
treatment
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Withdrawn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
EP02023081A
Other languages
German (de)
English (en)
Other versions
EP1304191A3 (fr
Inventor
Horst Löhnert
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.)
Friedr Dick GmbH and Co KG
Original Assignee
Friedr Dick GmbH and Co KG
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 Friedr Dick GmbH and Co KG filed Critical Friedr Dick GmbH and Co KG
Publication of EP1304191A2 publication Critical patent/EP1304191A2/fr
Publication of EP1304191A3 publication Critical patent/EP1304191A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades

Definitions

  • the invention relates to a device for treatment (Sharpening or polishing) a cutting edge of a knife with a provided in a base plate, open to the outside Slit for guiding the knife blade and with against an elastic resilient return force on each side of the slot pivoted, crossing in the area of the slot Treatment rods at the intersection of which the knife edge can be created.
  • the invention has for its object one as possible to develop a light and handy device in which the the forces acting on the knife edge during the movement of the crossing point remain as constant as possible.
  • each treatment rod rigid on its pivot axis with the Axis a lighter or equal weight than that or the eccentric disk having the treatment rods connected is at the one a radial on the eccentric directional spring force generating spring element attacks in such a way that at in the area of the outer end of the slot standing crossing point (starting position) the spring element at one point of the eccentric disc attacks its radius to the eccentric axis is less than the radius of the point of the spring element on the eccentric in the area of the inner end of the slot attacks the crossing point.
  • the spring element on Extent of the eccentric disc or within its circumference attack on an arcuate contact surface can fall within the circumference of the eccentric disc running contact surface be the bottom of a groove, which is recessed in the circumference of an eccentric disc.
  • this contact surface can also be a rib the eccentric disk can be provided so that the spring element is guided on one side.
  • the eccentric in the area of the contact surface also worn shoulder-shaped for the spring element be so that the contact surface is formed by this shoulder is and the spring element in turn on one side through the Side surface of the eccentric disc against sliding off the contact surface is secured.
  • This embodiment can the invention to be further developed in such a way that another disc on the side surface of the eccentric disc is attached, the spring element on the eccentric opposite side leads.
  • the spring element can be used in embodiments of the invention be differently trained.
  • the spring element is formed in that the Circumference of one attached to the base plate with both ends cylindrical coil spring tangential, if necessary under pressure against the eccentric disc.
  • the Coil spring is then due to the eccentricity of the eccentric disc deflected laterally against the spring force of the coil spring, this deflection generates the restoring force, which returns the treatment rods to the starting position, when the knife blade comes out of the slot of the device is pulled out. It may be the location of greater eccentricity the eccentric disc during the lateral deflection the coil spring on the circumference of the coil spring slide along, it is convenient if a coil spring with close to each other and possibly under tension adjacent turns is used.
  • a leaf spring is provided, one end of which, for example is rigidly attached to the base plate, whereas the free end of which engages the eccentric disc, whereby it again either on the circumference of the eccentric disc or on abuts a contact surface running within its circumference.
  • Spring element uses a spring wire which, like the one mentioned above Coil spring rests on the eccentric disc.
  • each treatment rod rigidly connected to a hub on its swivel axis is, the circumference of an elastic spring arm radially protrudes, the free end of a stop in the Base plate rests.
  • This arm then acts like a leaf spring. Is the crossing point of the treatment rods in the area the inner end of the slot, this is the spring arm tense or more tense than in the starting position the treatment rods and causes when removing the knife blade the pivoting back of the treatment rods from the slot in their starting position.
  • This embodiment of the invention can go further be formed that the resilient arm in one piece connected to the hub and the arm and hub out Plastic exist and therefore an inexpensive to manufacture Form plastic injection part.
  • the spring element exchangeable or removable attached to the base plate be so that the cleaning of the device and the spring element is relieved.
  • the base plate can be an injection molded part made of plastic or Be made of light metal. You can do this on the base plate known stops for the pivoting movement the treatment rods are molded. Also in embodiments the invention on the base plate fasteners be molded for the spring element, for example Bolt for hanging a coil spring or like.
  • the base plate can also be used as an injection molded part manufactured inexpensively from an ergonomic point of view become.
  • the base plate which is used as a handle for pushing fingers through the hand can be.
  • the swivel bearings for the Treatment rods e.g. Cutouts for the hubs on which the treatment rods are already attached in the base plate be provided when spraying the base plate.
  • a recess for attaching the device serves on a pad.
  • a recess preferably a dovetail cutout on the edge of the Be base plate, with which the device on a corresponding Holding part can be pushed onto a base.
  • the treatment rods can pass through the base plate Be attached hub, on the end of which the eccentric disc is rotatably attached.
  • This attachment can Embodiments of the invention can be implemented that the hub has at least one radial opening, through which one end of the treatment rod can be passed is. This creates a rotationally fixed connection between the treatment rod and guaranteed via the hub with the eccentric disc.
  • treatment rods can be interchangeably connected to the hub be so that treatment rods for polishing as needed or to sharpen the knife edge with the hub can be connected.
  • treatment sticks can also be used connected to the hub serving as a pivot pin be a section for polishing in a known manner the knife edge and a section for sharpening of the knife edge.
  • a base plate 1 has an outwardly open slot 2 , into which a knife blade for sharpening or polishing is inserted from top to bottom in the drawing.
  • Treatment rods 3, 3 ' are pivotally mounted on the rear view of the base plate 1 in the illustrated view in hubs 4, 4' designed as pivot bolts in recesses 5, 5 'of the base plate 1 and a tab 6, 6' provided for reinforcing the walls of the recess ,
  • the hubs 4, 4 ' have an axle bolt 7, 7' which passes through the cutout 5, 5 'and on which an eccentric disc 8, 8' arranged on the drawn back is eccentrically and rigidly fastened.
  • the hubs 4, 4 ' have a groove 9, 9' along their circumference, into each of which the upper end of the treatment rods 3, 3 'in the drawing is inserted.
  • the hubs have at least one radial through bore 10, 10 ' , through which the U-shaped bent ends of the treatment rods 3, 3' are inserted, so that they are connected to the hub 4, 4 'in a rotationally fixed manner.
  • the U-shaped bend 11, 11 'of the upper end of the treatment rods 3, 3' can be designed such that the section of the treatment rods 3, 3 'adjoining this bend 11, 11' lies firmly in the groove 9 by a clamping action.
  • the bend 11, 11 'can however, also be designed such that the treatment rods 3, 3' in FIG. 1 can be pushed upwards out of the bores 10, 10 'and cleaned or replaced separately.
  • the eccentric disc 8 is fastened at a distance from the base plate 1 on the axle bolt 7, 7 '.
  • a rib 12 is fastened, preferably injection-molded, which runs parallel to the circumference within the circumference of the eccentric disc 8, 8' and forms an arcuate contact surface for a spring element 13, 13 ' .
  • this spring element 13, 13 ' is formed by a cylindrical helical spring 13, 13', which is fastened at both ends to retaining bolts 14, 14 ' and 15, 15' fastened in the base plate 1.
  • the spring element 13, 13' rests under tension at a point on the rib 12 which only slightly presses the straight course of the cylindrical helical spring 13, 13 'outwards.
  • the eccentric disc 8, 8 'pivots about its axle pin 7, 7' to such an extent that the spring element 13, 13 'comes to rest on a section of the rib 12 whose radius to the axle pin 7, 7' is greater than the radius of the contact point 1 at the upper crossing point 16.
  • the rib 12 presses the spring element 13, 13 'much more outwards than in the starting position shown in FIG. 1.
  • the spring element 13, 13 'in FIG. 2 endeavors to turn the eccentric disc 8, 8' back into the starting position shown in FIG. 1, so that the treatment rods 3, 3 'swivel back into the starting position shown in FIG. 1 with the upper crossing point 16.
  • FIGS. 3 to 5 instead of an eccentric disc 8, 8 'and a helical spring 13, 13' acting on it, with the hub 4, 4 'or its axle bolt 7, 7', there is a second hub 17, 17 'non-rotatably connected, from the circumference of which an elastically resilient arm 18, 18' protrudes.
  • the free end of this arm 18, 18 ' can only be supported resiliently on a stop pin 19 or, as shown in FIG. 5, can engage between two pins 20 and 21 which, like the stop pin 19, engage in the base plate 1 are arranged.
  • the hub 17, 17 'and the arm 18, 18' can be molded in one piece from plastic. As FIG.
  • FIG. 3 shows, the arm 18, 18 ', which acts like a leaf spring, is only slightly tensioned in the starting position of the treatment rods 3, 3' (FIG. 5 shown in solid lines), whereas it is tensioned much more in the end position of the treatment rods 3, 3 '(bent ), which is shown in dashed lines in Figure 5.
  • the rotationally fixed connection of the hub 17, 17 'to the hub 4, 4' can be designed to be detachable, so that in this embodiment of the invention as well, the device parts arranged on the front of the base plate 1 and on the rear side of the base plate 1 for cleaning or can be removed from the device for replacement.
  • FIG. 4 shows an embodiment in which one side of the slot 2 parallel, at a distance from each other arranged treatment rods 3 are provided, wherein one or two on the other side of the slot 2 provided treatment rods 3 'between these treatment rods 3 intervene.
  • the base plate 1 which can be made of plastic or light metal, has cutouts 22, 22 ' which are used for handling the device and through which fingers of the hand can be inserted.
  • the walls of the recesses 22, 22 ' are reinforced by sleeve sections 23, 23' , which in turn are additionally held by a rib 24, 24 ' , which leads to the edge of the base plate 1 and there with a raised, board-like protrusion extending at the edge of the base plate 1 Rib 25, 25 'are connected ( Figures 1, 2, and 6).
  • the edges of the slot 2 are also protected and reinforced by ribs 26 protruding from the base plate 1.
  • At the lower end of the base plate in FIGS. 1, 2 and 6 there is a dovetail-shaped recess 27 ' which can be used for fastening, for example pushing the device onto a corresponding holding part of a base.
  • the invention relates to a device for sharpening or polishing the cutting edge of a knife with a in a base plate 1 provided, open to the outside slot 2 in which the knife blade can be performed and with against an elastic resilient restoring force on each side of the slot 2 pivoted, intersecting in the area of the slot 2 Treatment rods 3, 3 ', at their crossing point 16 the knife edge can be applied.
  • Each treatment rod 3, 3 ' is rigid on its pivot axis 7 with the axis of an eccentric disc 8, 8 'connected to which a radially the eccentric disc 8, 8 'generating directional spring force Spring element 13, 13 'attacks in such a way that in the area of the outer end of the slot 2 standing intersection 16 (starting position) the spring element 13, 13 'on one Place of the eccentric 8, 8 'attacks, the radius of Eccentric axis 7, 7 'is less than the radius of the point, on which the spring element 3, 3 'at in the region of the inner end the slot 2 attacks the crossing point 16, or it is with the axle pin 7 of a treatment rod 3, 3 'an elastically resilient arm rotatably connected, the free end itself at a stop 19, 20, 21 in the base plate 1 supports.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Knives (AREA)
  • Food-Manufacturing Devices (AREA)
EP02023081A 2001-10-20 2002-10-17 Dispositif pour traiter le tranchant d'un couteau Withdrawn EP1304191A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10151961 2001-10-20
DE10151961A DE10151961C1 (de) 2001-10-20 2001-10-20 Gerät zum Behandeln der Schneide eines Messers

Publications (2)

Publication Number Publication Date
EP1304191A2 true EP1304191A2 (fr) 2003-04-23
EP1304191A3 EP1304191A3 (fr) 2004-02-04

Family

ID=7703237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023081A Withdrawn EP1304191A3 (fr) 2001-10-20 2002-10-17 Dispositif pour traiter le tranchant d'un couteau

Country Status (4)

Country Link
US (1) US6679767B2 (fr)
EP (1) EP1304191A3 (fr)
AU (1) AU2002301544B2 (fr)
DE (1) DE10151961C1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070101826A1 (en) * 2002-11-12 2007-05-10 Southern Mechanical & Structural, Inc. Knife sharpener
US6866569B2 (en) * 2002-11-14 2005-03-15 Cozzini, Inc. Blade sharpening apparatus
DE102004006714A1 (de) * 2004-02-11 2005-08-25 Harald Stallegger Messerschärfvorrichtung
US20060040598A1 (en) * 2004-08-20 2006-02-23 Rudolf Koppe Precision sharpener tool
DE102006041538B3 (de) * 2006-09-05 2008-01-10 Friedr. Dick Gmbh & Co. Kg Schärfvorrichtung für Messerklingen
US9545703B1 (en) * 2015-08-10 2017-01-17 Razor Edge Systems, Inc. Miniature knife sharpening apparatus
WO2022015412A1 (fr) * 2020-07-17 2022-01-20 Primedge, Inc. Affûteuse de lames
US12427616B2 (en) 2022-04-11 2025-09-30 Hantover, Inc. Handheld blade steel
USD1110833S1 (en) 2022-04-11 2026-02-03 Hantover, Inc. Handheld blade steel
USD1062410S1 (en) * 2022-10-18 2025-02-18 Donghe Biotechnology (Shenzhen) Co., Ltd. Knife sharpener
USD1104694S1 (en) * 2024-03-17 2025-12-09 Xiaocui He Knife sharpener

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1041631A (en) * 1912-01-25 1912-10-15 Leo C Johnson Device for sharpening knives.
US4934110A (en) * 1985-04-22 1990-06-19 John Juranitch Edge sharpening apparatus
US5040435A (en) * 1991-01-31 1991-08-20 General Housewares Corp. Knife edge deburring apparatus
US5655959A (en) * 1993-08-20 1997-08-12 Juranitch; John Knife edge sharpener
US5478272A (en) * 1994-07-07 1995-12-26 Cozzini, Inc. Blade sharpening apparatus
US5440953A (en) * 1994-09-22 1995-08-15 Tru Hone Corporation Knife sharpener
DE19842397A1 (de) * 1998-09-16 2000-03-23 Dick Friedr Gmbh Vorrichtung zum Schärfen der SChneiden von Schneidwerkzeugen, insbesondere von Messerklingen
DE20121382U1 (de) * 2001-10-20 2002-08-22 Friedr. Dick GmbH, 73779 Deizisau Gerät zum Behandeln der Schneide eines Messers

Also Published As

Publication number Publication date
DE10151961C1 (de) 2002-10-17
EP1304191A3 (fr) 2004-02-04
AU2002301544B2 (en) 2005-04-07
US6679767B2 (en) 2004-01-20
US20030077991A1 (en) 2003-04-24

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