FR2720672A1 - Knife sharpener - Google Patents

Knife sharpener Download PDF

Info

Publication number
FR2720672A1
FR2720672A1 FR9406965A FR9406965A FR2720672A1 FR 2720672 A1 FR2720672 A1 FR 2720672A1 FR 9406965 A FR9406965 A FR 9406965A FR 9406965 A FR9406965 A FR 9406965A FR 2720672 A1 FR2720672 A1 FR 2720672A1
Authority
FR
France
Prior art keywords
blade
sharpening
springs
support
rubber
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.)
Granted
Application number
FR9406965A
Other languages
French (fr)
Other versions
FR2720672B1 (en
Inventor
Pierre Venzac
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9406965A priority Critical patent/FR2720672B1/en
Publication of FR2720672A1 publication Critical patent/FR2720672A1/en
Application granted granted Critical
Publication of FR2720672B1 publication Critical patent/FR2720672B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/06—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges
    • B24D15/08—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors
    • B24D15/081—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors with sharpening elements in interengaging or in mutual contact
    • B24D15/082—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors with sharpening elements in interengaging or in mutual contact the elements being rotatable

Landscapes

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

Abstract

The knife sharpener comprises a support (6) in which rotate spindles (3) fixed to conical cutting wheels (1). The sharpening cones are rotated during passage of a blade (8) between the rubber mountings (2) and thus work over all their periphery. Two springs (4) held by plugs (5) exert a pressure on the cutting wheels through thrust pads (7). A play exists between the support and the rubber mountings to allow adaptation to different thicknesses of blade when the springs are compressed. The rubber mountings ensure guidance and protection of the blade at a guaranteed constant sharpening angle.. The sharpener provides precise blade guidance at the same guaranteed angle and gives protection against scratches.

Description

AIGUISOIR A COUTEAUX
La présente invention concerne un dispositif pour aiguiser les couteaux.SHARPENER
The present invention relates to a device for sharpening knives.

L'aiguisage des couteaux est traditionnellement effectué sans guidage précis de la lame ni protection latérale de celle-ci contre les rayures. Knife sharpening is traditionally carried out without precise guiding of the blade or lateral protection of the latter against scratches.

D'autre part, les parties actives des aiguisoirs traditionnels (par exemple à disques ou cylindres) travaillent souvent sur une même partie restreinte de leur circonférence, ce qui a pour effet d'encrasser les molettes ou de les user ponctuellement. On the other hand, the active parts of traditional sharpeners (for example with discs or cylinders) often work on the same restricted part of their circumference, which has the effect of clogging the wheels or of using them punctually.

Le dispositif selon l'invention, permet de remédier à ces inconvénients. Il comporte en effet, deux molettes coniques entrainées en rotation par le passage d'une lame de couteau entre les garnitures en caoutchouc vulcanisées sur ces molettes. The device according to the invention overcomes these drawbacks. In fact, it comprises two conical knobs driven in rotation by the passage of a knife blade between the vulcanized rubber linings on these knobs.

Deux ressorts compensateurs maintiennent une certaine pression axiale sur les molettes afin d'assurer une friction suffisante à leur entrainement, quelle que soit l'épaisseur de la lame. Two compensating springs maintain a certain axial pressure on the rollers to ensure sufficient friction in their drive, regardless of the thickness of the blade.

La différence de développante entre la partie entrainante et la partie entrainée produit un glissement suffisant pour l'aiguisage de la lame, et un renouvellement permanent des arêtes génératrices abrasives. The difference of involute between the driving part and the driven part produces a sufficient sliding for the sharpening of the blade, and a permanent renewal of the abrasive generating edges.

Le dessin - PL 1/1 - annexé illustre l'invention. The accompanying drawing - PL 1/1 - illustrates the invention.

La figure l représente en coupe le dispositif selon l'invention
La figure 2 représente en vue de dessus les molettes. Figure l shows in section the device according to the invention
Figure 2 shows a top view of the wheels.

En référence à ces dessins, le dispositif comporte un support (6) dans lequel tournent deux axes (3) sur lesquels sont vissées deux molettes coniques (1). With reference to these drawings, the device comprises a support (6) in which two axes (3) rotate on which are screwed two conical knobs (1).

Une garniture en caoutchouc (2) vulcanisée sur ces molettes (1) leur permet de s'engréner et d'être entrainées en rotation lors du passage d'une lame de couteau (8) entre ces garnitures. A rubber lining (2) vulcanized on these rollers (1) allows them to mesh and to be driven in rotation when a knife blade (8) passes between these linings.

Deux ressorts (4) retenus par deux bouchons (5) appuient sur deux butées antifriction (7) pour maintenir une pression de contact entre les garnitures (2) quelle que soit l'épaisseur de la lame (8). Two springs (4) retained by two plugs (5) press on two anti-friction stops (7) to maintain a contact pressure between the linings (2) regardless of the thickness of the blade (8).

Lorsque la lame avance et recule entre les deux molettes, la différence de développante entre les parties entrainantes (2) et les parties entrainées (1) produit un glissement du fil de la lame sur les extrémités coniques des molettes, ce qui provoque l'aiguisage. When the blade moves back and forth between the two knurls, the involute difference between the driving parts (2) and the driven parts (1) produces a sliding of the blade wire on the conical ends of the knobs, which causes the sharpening .

Les deux garnitures en caoutchouc protègent la lame de toute rayure, et garantissent un angle d'affutage constant.  The two rubber seals protect the blade from any scratches, and guarantee a constant sharpening angle.

Claims (5)

REVENDICATIONS 1) Dispositif pour aiguisage de couteaux, caractérisé en ce qu'il comporte un support (6) dans lequel tournent des axes (3) solidaires de molettes coniques (1) entrainées en rotation par le passage d'une lame (8) entre les garnitures en caoutchouc (2). 1) Device for sharpening knives, characterized in that it comprises a support (6) in which rotate axes (3) integral with conical knobs (1) driven in rotation by the passage of a blade (8) between the rubber seals (2). 2) Dispositif selon la revendication 1 caractérisé en ce que les deux ressorts (4) maintenus par les bouchons (5) exercent une pression sur les molettes (1) par l'intermédiaire des butées (7). 2) Device according to claim 1 characterized in that the two springs (4) held by the plugs (5) exert pressure on the rollers (1) via the stops (7). 3) Dispositif selon les deux revendications précédentes caractérisé en ce que le jeu existant entre le support (6) et les garnitures en caoutchouc (2) permet l'adaptation du sytème à différentes épaisseurs de lames, lorsque les ressorts se compriment. 3) Device according to the two preceding claims characterized in that the play existing between the support (6) and the rubber linings (2) allows the adaptation of the system to different thicknesses of blades, when the springs compress. 4) Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les garnitures en caoutchouc (2) assurent le guidage et la protection de la lame (8) de même qu'un angle d'affûtage constant. 4) Device according to any one of the preceding claims, characterized in that the rubber linings (2) guide and protect the blade (8) as well as a constant sharpening angle. 5) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que les cônes d'aiguisage sont entrainés en rotation lors du passage de la lame entre les garnitures (2) et travaillent ainsi sur toute leur périphérie.  5) Device according to any one of the preceding claims, characterized in that the sharpening cones are rotated during the passage of the blade between the linings (2) and thus work over their entire periphery.
FR9406965A 1994-06-01 1994-06-01 Sharpener. Expired - Fee Related FR2720672B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9406965A FR2720672B1 (en) 1994-06-01 1994-06-01 Sharpener.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9406965A FR2720672B1 (en) 1994-06-01 1994-06-01 Sharpener.

Publications (2)

Publication Number Publication Date
FR2720672A1 true FR2720672A1 (en) 1995-12-08
FR2720672B1 FR2720672B1 (en) 1996-08-30

Family

ID=9463967

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9406965A Expired - Fee Related FR2720672B1 (en) 1994-06-01 1994-06-01 Sharpener.

Country Status (1)

Country Link
FR (1) FR2720672B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102873597A (en) * 2012-10-07 2013-01-16 呼长波 Electric double-sided knife sharpener
CN103551930B (en) * 2013-11-21 2015-12-30 黄圭鹏 A kind of electric double-sided knife sharpener

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH199848A (en) * 1936-11-12 1938-09-15 Ind A G Allegro Grinding device with rotating grinding wheels for knives.
DE9215273U1 (en) * 1992-11-10 1992-12-24 Lii, Chuen-Cherng, Taichung Hand knife sharpener with two grinding rollers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH199848A (en) * 1936-11-12 1938-09-15 Ind A G Allegro Grinding device with rotating grinding wheels for knives.
DE9215273U1 (en) * 1992-11-10 1992-12-24 Lii, Chuen-Cherng, Taichung Hand knife sharpener with two grinding rollers

Also Published As

Publication number Publication date
FR2720672B1 (en) 1996-08-30

Similar Documents

Publication Publication Date Title
FR2784045A1 (en) ROTARY TOOL FOR MACHINING SURFACES
SE0002154D0 (en) Grinding segment for rotary grinding wheel, and grinding apparatus comprising grinding wheel with such grinding segment
FR2720672A1 (en) Knife sharpener
FR2471845A1 (en) DIPOSITIVE INTENDED TO GIVE A TENDENT SHAPE TO THE GUIDE FACES OF THE KNIFE HOLDERS OF A WOOD FRAGMENT MACHINE
FR2550050A1 (en) Toothed cutting wheel for mower or tree-dozer
FR2756452A1 (en) Portable rotary cutting and trimming tool with lockable cutting head
KR950001693B1 (en) Knife sharpener
FR2900080A1 (en) PROFILE TRACKING DEVICE FOR MACHINING A TUBULAR MEMBER
US3058149A (en) Motor driven, manually operated tool for removing meat from bones
EP0133073B1 (en) Mechanical seal
FR2538066A1 (en) HAND VALVE AND SANDER INCORPORATING SUCH VALVE
FR2534449A1 (en) Secateurs and shears with rotary blade
FR2851481A1 (en) Mincer, especially for meat, has separating grille and outlet tube for tough components, with end of drive shaft inserted in tube
FR2480662A1 (en) VERSATILE MACHINE FOR ANGLE SANDING
FR2470528A1 (en) V=section mower knife - has transverse portion of end fixing area of same nature as cutting area
EP3482879B1 (en) Roller with functional surface for a power tool and power tool with such a roller
FR2620371A1 (en) GRINDING BLADE CUTTING DEVICE, IN PARTICULAR FOR WRITING RIBBONS
BE838121R (en) GLASS PLATE EDGE CHAMFERING MACHINE
EP0925835B1 (en) Multiknife mincer for the food industry
BE1009233A6 (en) Scraper and device for scraper.
FR2474892A1 (en) Manually operated refuse shredder - has screw feeder toothed wheel and rotating auxiliary drum with radial fingers
FR2872076A1 (en) Abrasive disk assembling device for suction grinding electric hand power tool, has casing whose peripheral edge receives roller tube having zones that are adjusted by fitting on edge and under laid in disk, where one zone has grooves
EP0349368B1 (en) Adjustable disc brake
WO2001078852A1 (en) Manual edge sharpener with mobile abrasive part
FR2570145A1 (en) Sealing ring assembly for chain winding drum bearings

Legal Events

Date Code Title Description
ST Notification of lapse