EP3576907A1 - Dispositif d'affûtage - Google Patents
Dispositif d'affûtageInfo
- Publication number
- EP3576907A1 EP3576907A1 EP18707074.3A EP18707074A EP3576907A1 EP 3576907 A1 EP3576907 A1 EP 3576907A1 EP 18707074 A EP18707074 A EP 18707074A EP 3576907 A1 EP3576907 A1 EP 3576907A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sharpening device
- sharpening
- flexible
- abrasive
- disks
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 241001272720 Medialuna californiensis Species 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- B24B3/54—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of hand or table knives
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/001—Single-purpose machines or devices for particular grinding operations not covered by any other main group for table cutlery
Definitions
- the present invention is in the field of blades sharpening devices, in particular knives.
- the operator alternately applies one of the two faces of the blade to be sharpened against the abrasive belt or the round stone in order to perform the grinding operation.
- blade guide systems are used to wedge and hold the blade during the grinding operation, and are set upstream of the bands or bilateral abrasive stone.
- the duration of sharpening for users is long, it is of the order of 1 to 3 min.
- the accuracy of the sharpening angle presents a risk of error with respect to the initial angle, which can be between 10 and 25% which is still too high for the users of the blades to be sharpened.
- the object of the present invention is to overcome the disadvantages of the state of the art, by proposing a device for sharpening a cutting tool blade, such as a knife or the like.
- said device comprises at least two flexible disks each having an abrasive inner face, contiguous facing abrasive faces, rotatably mounted in the same direction and at the same speed around the same axis; pressure means disposed externally and clamping said discs in a non-diametrical cord; and means internal to said disks bearing on the inner faces of the disks, in their parts delimited by the rope and not traversed by the axis, the choice of the positioning of said internal means with respect to said pressure means, defining the angle d 'sharpening.
- the pressure means consist of an alignment of bearing balls
- said pressure means consist of two magnets of opposite polarities positioned vis-à-vis and associated with sliding means arranged in contact with the flexible disks;
- said abrasive inner face consists of an abrasive disk attached and reversibly fixed on the flexible disk;
- the abrasive disk is secured to the flexible disk through a hook-type fastening system
- said internal means exerting a bearing on the inner faces of the discs consist of a ball retractor designed to roll over the periphery of the part delimited by the rope and not traversed by the axis of each of the flexible disks.
- said device is provided in its upper part with a removable stepped blade guide, positionable between the two parts delimited by the rope and not traversed by the axis of said two flexible disks.
- FIG. 1 schematically represents a cross sectional profile view of the grinding device of the invention
- FIG. 2 schematically represents a view of the outside face of the flexible disks
- FIG. 3A and 3B show schematically a view of the inner face of the flexible discs in the presence and absence of adhesive means supporting the abrasive means.
- the present invention relates to a sharpening device 1 of blade 2.
- the blade 2 concerned is of the knife type or the like, for example kitchen knife or surgical scalpel.
- the device 1 of the invention comprises two flexible disks 3 as visible in FIG.
- the flexible discs 3 are in a plastic material material, cardboard, flexible steel or other.
- each flexible disk 3 has an inner face 3a and an outer face 3b as visible in FIGS. 3A and 3B.
- the inner face 3a is abrasive and has the role of sharpening said blade 2.
- the inner face 3a consists for example of an abrasive disc 7 attached and reversibly fixed on said flexible disk 3.
- said abrasive disk 7 has a particle size of between 8 and 5000 nm.
- said abrasive disc 7, also flexible, is secured to the flexible disc 3 through a velvet-hook type fastening system.
- any other known reversible fastening means of the prior art is possible such as a double-sided adhesive, a zipper system, pressure button or a magnet system.
- the two flexible disks 3 are contiguous and mounted so that their abrasive faces are opposite one another.
- said flexible disks 3 are rotatably mounted about the same axis 4.
- the two flexible disks 3 are fixedly mounted on a single shaft shaft 4 driven in rotation by a motor.
- each of the flexible disks 3 is mounted at the end of a shaft driven in rotation by a motor, the two shafts being coaxial and are driven in the same direction and at the same speed by only one motor means or by several synchronized motor means.
- the flexible discs 3 rotate together in the same direction and at the same speed with their faces. internal abrasives attached.
- said grinding device also comprises pressure means 5 arranged externally, that is to say cooperating directly with the outer face 3b of said flexible disks 3.
- Said pressure means 5 are linear and clamp said at least two flexible disks 3 together in a non-diametrical chord of said flexible disks 3 as visible in FIG. 2.
- the linear pressure means define a rope on said flexible disk 3, said rope not passing through the axis 4.
- said pressure means 5 consist of an alignment of carrier balls 51.
- the bearing balls 51 ensure the nip of the two disks 3 in a line, their possible rotation providing an anti-friction function.
- the pressure means 5 consist of two magnets of opposite polarities positioned vis-à-vis and associated with sliding means arranged in contact with the flexible disks 3.
- the pressure means 5 consist of two single bars in the form of a half-moon made of ceramic or steel, for example.
- the pressure means 5 consist of an air pressure system.
- the sharpening device 1 also comprises internal means 6 exerting a bearing on the inner faces 3a of the flexible discs 3. Said means 6 internal to said discs 3 act in support in the part 30 of the discs 3 delimited by the rope and not traversed by the axis 4 as visible in Figure 1 and 3A.
- said internal means 6 exerting a bearing on the inner faces 3a of said disks 3 generate a spacing of said disks 3 contiguous.
- the choice of the positioning of the support on the disks by the internal means 6 with respect to the pressure means 5 defines a sharpening angle o as visible in FIG.
- the blade 2 In the space delimited by the spacing of the two disks 3, the blade 2 is inserted to position it between the two flexible disks 3 in rotation, the angle a is that chosen, as a function of the blade characteristics 2, which when the sharpening operation will make it possible to sharpen this blade 2.
- said internal means 6 exerting a bearing on the inner faces 3a of the discs 3 consist of a ball spacer intended to come rolling on the periphery of the portion delimited by the rope and not crossed by the axis of each of the flexible disks 3, as visible in Figures 3A and 3B.
- the balls of the spacer will roll against the inner faces 3a of said two discs 3 contiguous to keep them apart to allow a passage introducing the blade 2 to sharpen, said passage corresponding to the sharpening angle.
- the device 1 in its upper part of a removable blade guide 8, preferably a staircase as shown in Figure 1
- Said blade guide 8 is positionable between the two parts 3a of each of the two flexible disks 3. In other words, said blade guide 8 is positioned at the sharpening angle as visible in FIG. 1.
- said device 1 of the invention comprises two pairs of flexible disks 3 each connected to an axis shaft 4 rotated by the same motor, so it is possible to sharpen two blades with the same device and at the same time.
- the present invention has the advantage of facilitating blade sharpening that is desired to sharpen at a precise angle. More specifically, the use of the device 1 of the invention allows:
- the sharpening is fast of the order of 15 to 20 seconds against 2 to 3 minutes with the apparatus of the prior art
- the other advantage of the device 1 of the invention consists of its ease of use which does not require special diligence on the part of the operator to position the blade within the sharpening angle of the device 1.
- the sharpening angle is created by the positioning of the means of 5 with respect to the internal means 6, the two faces of the blade 2 to be sharpened are sharpened simultaneously and at the same time resulting in a quality of sharpening and precision of the cutting angle better than that obtained with the device of the state of the art.
- the blades 2 obtained using the device 1 thus have a better quality of cut and durability than that obtained in the prior art, this even if the grinding operation is performed by a user who is not an expert warned.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL18707074T PL3576907T3 (pl) | 2017-02-02 | 2018-01-26 | Urządzenie ostrzące |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1750890A FR3062329B1 (fr) | 2017-02-02 | 2017-02-02 | Dispositif d'affutage |
PCT/FR2018/050178 WO2018142046A1 (fr) | 2017-02-02 | 2018-01-26 | Dispositif d'affûtage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3576907A1 true EP3576907A1 (fr) | 2019-12-11 |
EP3576907B1 EP3576907B1 (fr) | 2021-05-26 |
Family
ID=58501686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18707074.3A Active EP3576907B1 (fr) | 2017-02-02 | 2018-01-26 | Dispositif d'affûtage |
Country Status (20)
Country | Link |
---|---|
US (1) | US11612974B2 (fr) |
EP (1) | EP3576907B1 (fr) |
JP (1) | JP7102446B2 (fr) |
KR (1) | KR102443709B1 (fr) |
CN (1) | CN110214067B (fr) |
AU (1) | AU2018216076B2 (fr) |
BR (1) | BR112019014411B1 (fr) |
CA (1) | CA3052232C (fr) |
CO (1) | CO2019007652A2 (fr) |
DK (1) | DK3576907T3 (fr) |
ES (1) | ES2883855T3 (fr) |
FR (1) | FR3062329B1 (fr) |
HU (1) | HUE055874T2 (fr) |
MA (1) | MA47426B1 (fr) |
MX (1) | MX2019007691A (fr) |
PL (1) | PL3576907T3 (fr) |
PT (1) | PT3576907T (fr) |
RU (1) | RU2752483C2 (fr) |
UA (1) | UA124775C2 (fr) |
WO (1) | WO2018142046A1 (fr) |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE191380C (fr) * | 1900-01-01 | |||
US594320A (en) * | 1897-11-23 | Sandpapering-machine | ||
US2735247A (en) * | 1956-02-21 | Knife sharpener attachment | ||
GB191380A (en) * | 1922-01-07 | 1923-10-04 | Heinrich Beck | A device for sharpening and honing cutting tools |
BE559537A (fr) * | 1954-12-02 | |||
FR1271570A (fr) * | 1960-07-30 | 1962-01-19 | ||
SU1268379A1 (ru) * | 1985-06-10 | 1986-11-07 | Проектно-Конструкторское Бюро Министерства Мясной И Молочной Промышленности Бсср | Устройство дл заточки ножей |
RU2036067C1 (ru) * | 1991-12-27 | 1995-05-27 | Казанское приборостроительное конструкторское бюро | Устройство для заточки лезвий бытового режущего инструмента |
US6113476A (en) * | 1998-01-08 | 2000-09-05 | Edgecraft Corp. | Versatile ultrahone sharpener |
JP2001009684A (ja) | 1999-07-01 | 2001-01-16 | Kyocera Corp | セラミック製刃物用電動研ぎ器 |
US8430720B2 (en) * | 2003-03-27 | 2013-04-30 | Edgecraft Corporation | Apparatus for precision steeling/conditioning of knife edges |
DE112007000451B4 (de) * | 2006-02-23 | 2020-08-20 | Edgecraft Corp. | Messerschärfer mit verbesserten Messerführungen |
KR100692261B1 (ko) | 2006-06-20 | 2007-03-12 | 안영복 | 자동 칼갈이 장치 |
DE102010028123A1 (de) * | 2010-04-22 | 2011-10-27 | Robert Bosch Gmbh | Schleiftellervorrichtung für ein handgeführtes Schleifgerät |
US20120015590A1 (en) * | 2010-07-16 | 2012-01-19 | Sheng-Cheng Li | Knife sharpener |
CN202137647U (zh) * | 2011-07-07 | 2012-02-08 | 马志强 | 手持式家用微型电动磨刀器 |
KR20130088446A (ko) * | 2012-01-31 | 2013-08-08 | 최재빈 | 칼갈이 장치 |
EP2712707B1 (fr) | 2012-09-28 | 2019-07-03 | High Tech Ceramic eK | Aiguiseur de couteau |
CN203125263U (zh) * | 2013-03-29 | 2013-08-14 | 施传伟 | 折叠式磨刀器 |
SE539499C2 (en) * | 2015-05-21 | 2017-10-03 | Eklund Tore | A grinder / polisher apparatus and a grinding element for that |
-
2017
- 2017-02-02 FR FR1750890A patent/FR3062329B1/fr not_active Expired - Fee Related
-
2018
- 2018-01-26 PL PL18707074T patent/PL3576907T3/pl unknown
- 2018-01-26 EP EP18707074.3A patent/EP3576907B1/fr active Active
- 2018-01-26 AU AU2018216076A patent/AU2018216076B2/en active Active
- 2018-01-26 JP JP2019563693A patent/JP7102446B2/ja active Active
- 2018-01-26 KR KR1020197022908A patent/KR102443709B1/ko active IP Right Grant
- 2018-01-26 PT PT187070743T patent/PT3576907T/pt unknown
- 2018-01-26 MX MX2019007691A patent/MX2019007691A/es unknown
- 2018-01-26 WO PCT/FR2018/050178 patent/WO2018142046A1/fr unknown
- 2018-01-26 US US16/482,694 patent/US11612974B2/en active Active
- 2018-01-26 CN CN201880007825.2A patent/CN110214067B/zh active Active
- 2018-01-26 RU RU2019123664A patent/RU2752483C2/ru active
- 2018-01-26 HU HUE18707074A patent/HUE055874T2/hu unknown
- 2018-01-26 UA UAA201907407A patent/UA124775C2/uk unknown
- 2018-01-26 CA CA3052232A patent/CA3052232C/fr active Active
- 2018-01-26 ES ES18707074T patent/ES2883855T3/es active Active
- 2018-01-26 BR BR112019014411-0A patent/BR112019014411B1/pt active IP Right Grant
- 2018-01-26 DK DK18707074.3T patent/DK3576907T3/da active
- 2018-01-26 MA MA47426A patent/MA47426B1/fr unknown
-
2019
- 2019-07-16 CO CONC2019/0007652A patent/CO2019007652A2/es unknown
Also Published As
Publication number | Publication date |
---|---|
BR112019014411A2 (pt) | 2020-04-14 |
CA3052232A1 (fr) | 2018-08-09 |
PT3576907T (pt) | 2021-08-26 |
CA3052232C (fr) | 2021-10-19 |
AU2018216076B2 (en) | 2024-02-01 |
FR3062329A1 (fr) | 2018-08-03 |
JP7102446B2 (ja) | 2022-07-19 |
KR102443709B1 (ko) | 2022-09-14 |
PL3576907T3 (pl) | 2021-12-06 |
AU2018216076A1 (en) | 2019-07-18 |
US11612974B2 (en) | 2023-03-28 |
BR112019014411B1 (pt) | 2023-12-12 |
UA124775C2 (uk) | 2021-11-17 |
US20200001421A1 (en) | 2020-01-02 |
CO2019007652A2 (es) | 2019-08-30 |
JP2020506078A (ja) | 2020-02-27 |
ES2883855T3 (es) | 2021-12-09 |
FR3062329B1 (fr) | 2020-01-10 |
MX2019007691A (es) | 2019-09-04 |
RU2019123664A3 (fr) | 2021-01-26 |
WO2018142046A1 (fr) | 2018-08-09 |
HUE055874T2 (hu) | 2021-12-28 |
RU2019123664A (ru) | 2021-01-26 |
CN110214067A (zh) | 2019-09-06 |
CN110214067B (zh) | 2021-08-27 |
EP3576907B1 (fr) | 2021-05-26 |
RU2752483C2 (ru) | 2021-07-28 |
MA47426B1 (fr) | 2021-09-30 |
DK3576907T3 (da) | 2021-08-30 |
KR20190113806A (ko) | 2019-10-08 |
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