EP3576907B1 - Dispositif d'affûtage - Google Patents

Dispositif d'affûtage Download PDF

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Publication number
EP3576907B1
EP3576907B1 EP18707074.3A EP18707074A EP3576907B1 EP 3576907 B1 EP3576907 B1 EP 3576907B1 EP 18707074 A EP18707074 A EP 18707074A EP 3576907 B1 EP3576907 B1 EP 3576907B1
Authority
EP
European Patent Office
Prior art keywords
discs
sharpening
flexible
sharpening device
abrasive
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.)
Active
Application number
EP18707074.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3576907A1 (fr
Inventor
Jean Luc GORNAY
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.)
Sogest
Original Assignee
Sogest
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 Sogest filed Critical Sogest
Priority to PL18707074T priority Critical patent/PL3576907T3/pl
Publication of EP3576907A1 publication Critical patent/EP3576907A1/fr
Application granted granted Critical
Publication of EP3576907B1 publication Critical patent/EP3576907B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 falls within the field of devices for sharpening blades, 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 carry out the sharpening operation.
  • sharpening machines have been constructed having two abrasive belts or round stone which intersect.
  • the blade is positioned between the two bands or the two stones allowing sharpening simultaneously on each of its opposite faces.
  • blade guide systems are used which make it possible to wedge and hold the blade during the sharpening operation, and which are placed upstream of the bands or bilateral abrasion stone.
  • the sharpening time 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 compared to the initial angle, which can be between 10 and 25% which is still too high for users of the blades to be sharpened.
  • the object of the present invention is to overcome the drawbacks of the state of the art, by proposing a device for sharpening the blade of a cutting tool, of the knife type or the like.
  • said device comprises at least two flexible discs each having an abrasive inner face, placed side by side with facing abrasive faces, mounted in rotation in the same direction and at the same speed about the same axis; pressure means, disposed externally and clamping said discs in a non-diametrical cord; and means internal to said discs exerting a support on the internal faces of the discs, in their parts delimited by the chord and not crossed by the axis, the choice of the positioning of said internal means relative to said pressure means, defining the angle d 'sharpening.
  • said device is provided in its upper part with a stepped blade guide, removable, positionable between the two parts delimited by the cord and not crossed by the axis of said two flexible discs.
  • the present invention relates to a sharpening device 1 for blade 2.
  • the blade 2 concerned is of the knife or similar type, for example kitchen knife or surgical scalpel.
  • the device 1 of the invention comprises two flexible discs 3 as seen on the figure 1 .
  • the flexible disks 3 are made of a material of the plastic, cardboard, flexible steel or other type.
  • each flexible disc 3 has an inner face 3a and an outer face 3b as visible to the users. figures 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 fixed in a reversible manner on said flexible disc 3.
  • said abrasive disc 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 fastening system of the velvet-hook type.
  • any other reversible fixing means known from the prior art is possible such as a double-sided adhesive, a zipper system, a press button or a magnetic system.
  • the two flexible discs 3 are placed side by side and mounted so that their abrasive faces are facing each other.
  • said flexible discs 3 are mounted in rotation about the same axis 4.
  • the two flexible disks 3 are fixedly mounted on a same shaft with axis 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 a single motor means or by several synchronized motor means.
  • the flexible discs 3 rotate together, in the same direction and at the same speed, having their faces interlocking abrasive interiors.
  • said sharpening device also comprises pressure means 5 arranged externally, that is to say cooperating directly with the external face 3b of said flexible discs 3.
  • Said pressure means 5 are linear and clamp said at least two flexible discs 3 together according to a non-diametrical chord of said flexible discs 3 as visible on the figure. figure 2 .
  • the linear pressure means 5 define a chord on said flexible disc 3, said chord not passing through the axis 4.
  • said pressure means 5 consist of an alignment of carrier balls 51.
  • the carrier balls 51 ensure the gripping 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 opposite each other and associated with sliding means placed in contact with the flexible disks 3.
  • the pressure means 5 consist of two simple bars in the shape 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 support on the internal 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 cord. and not crossed by axis 4 as visible on the figure 1 and 3A .
  • said internal means 6 by exerting a support on the internal faces 3a of said discs 3 generate a spacing of said contiguous discs 3.
  • the choice of the positioning of the support on the discs by the internal means 6 relative to the pressure means 5 defines a sharpening angle ⁇ as visible on the figure 1 .
  • the blade 2 In the space delimited by the spacing of the two discs 3, the blade 2 is introduced to position it between the two flexible rotating discs 3, the angle ⁇ is the one chosen, depending on the characteristics of the blade 2, which when the sharpening operation will sharpen this blade 2.
  • said internal means 6 exerting a support on the internal faces 3a of the discs 3 consist of a spacer with balls intended to come roll on the periphery of the part delimited by the rope and not crossed by the axis of each of the flexible discs 3, as visible on the figures 3A and 3B .
  • the spacer balls will roll against the inner faces 3a of said two contiguous discs 3 to keep them apart in order to leave a passage introduction of the blade 2 to be sharpened, said passage corresponding to the sharpening angle.
  • the device 1 in its upper part of a removable blade guide 8, preferably in a staircase as visible on the figure. figure 1
  • Said blade guide 8 is positionable between the two parts 3a of each of the two flexible discs 3. In other words, said blade guide 8 is positioned at the level of the sharpening angle as visible on the figure. figure 1 .
  • said device 1 of the invention comprises two pairs of flexible discs 3 each connected to a shaft of axis 4 actuated in rotation by the same motor, thus it is possible to sharpen two blades with the same device and at the same time.
  • 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 being created by the positioning of the means of pressure 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, hence a quality of sharpening and cutting angle precision better than that obtained with the device of the state of the art.
  • the blades 2 obtained by using the device 1 therefore have a cutting quality and a longer life than that obtained in the prior art, this even if the sharpening operation is carried out by a user who is not an expert. warned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Paper (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP18707074.3A 2017-02-02 2018-01-26 Dispositif d'affûtage Active EP3576907B1 (fr)

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 EP3576907A1 (fr) 2019-12-11
EP3576907B1 true 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 (enExample)
EP (1) EP3576907B1 (enExample)
JP (1) JP7102446B2 (enExample)
KR (1) KR102443709B1 (enExample)
CN (1) CN110214067B (enExample)
AU (1) AU2018216076B2 (enExample)
BR (1) BR112019014411B1 (enExample)
CA (1) CA3052232C (enExample)
CO (1) CO2019007652A2 (enExample)
DK (1) DK3576907T3 (enExample)
ES (1) ES2883855T3 (enExample)
FR (1) FR3062329B1 (enExample)
HU (1) HUE055874T2 (enExample)
MA (1) MA47426B1 (enExample)
MX (1) MX2019007691A (enExample)
PL (1) PL3576907T3 (enExample)
PT (1) PT3576907T (enExample)
RU (1) RU2752483C2 (enExample)
UA (1) UA124775C2 (enExample)
WO (1) WO2018142046A1 (enExample)

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US594320A (en) * 1897-11-23 Sandpapering-machine
US2735247A (en) * 1956-02-21 Knife sharpener attachment
DE191380C (enExample) * 1900-01-01
GB191380A (en) * 1922-01-07 1923-10-04 Heinrich Beck A device for sharpening and honing cutting tools
BE559537A (enExample) * 1954-12-02
FR1271570A (enExample) * 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
WO2007101008A2 (en) * 2006-02-23 2007-09-07 Edgecraft Corporation Knife sharpeners with improved knife guides
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 (de) * 2012-09-28 2019-07-03 High Tech Ceramic eK Messerschärfer
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CO2019007652A2 (es) 2019-08-30
NZ754891A (en) 2025-03-28
CN110214067B (zh) 2021-08-27
AU2018216076A1 (en) 2019-07-18
MX2019007691A (es) 2019-09-04
KR20190113806A (ko) 2019-10-08
FR3062329A1 (fr) 2018-08-03
AU2018216076B2 (en) 2024-02-01
PT3576907T (pt) 2021-08-26
DK3576907T3 (da) 2021-08-30
JP7102446B2 (ja) 2022-07-19
MA47426B1 (fr) 2021-09-30
RU2019123664A (ru) 2021-01-26
RU2752483C2 (ru) 2021-07-28
CA3052232C (fr) 2021-10-19
US11612974B2 (en) 2023-03-28
ES2883855T3 (es) 2021-12-09
EP3576907A1 (fr) 2019-12-11
JP2020506078A (ja) 2020-02-27
BR112019014411B1 (pt) 2023-12-12
HUE055874T2 (hu) 2021-12-28
US20200001421A1 (en) 2020-01-02
KR102443709B1 (ko) 2022-09-14
WO2018142046A1 (fr) 2018-08-09
BR112019014411A2 (pt) 2020-04-14
CA3052232A1 (fr) 2018-08-09
RU2019123664A3 (enExample) 2021-01-26
CN110214067A (zh) 2019-09-06
FR3062329B1 (fr) 2020-01-10
PL3576907T3 (pl) 2021-12-06
UA124775C2 (uk) 2021-11-17

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