FR2720672A1 - Knife sharpener - Google Patents
Knife sharpener Download PDFInfo
- 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
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
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)
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)
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)
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 |
-
1994
- 1994-06-01 FR FR9406965A patent/FR2720672B1/en not_active Expired - Fee Related
Patent Citations (2)
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |