EP4117857A1 - Roller sander - Google Patents
Roller sanderInfo
- Publication number
- EP4117857A1 EP4117857A1 EP21711216.8A EP21711216A EP4117857A1 EP 4117857 A1 EP4117857 A1 EP 4117857A1 EP 21711216 A EP21711216 A EP 21711216A EP 4117857 A1 EP4117857 A1 EP 4117857A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- handle
- disc
- rotation
- axis
- 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
- 238000005498 polishing Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000033001 locomotion Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 239000002023 wood Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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
- B24D15/085—Hand tools or other devices for non-rotary grinding, polishing, or stropping specially designed for sharpening cutting edges of knives; of razors with reciprocating whetstones
-
- 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
- B24B3/543—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of hand or table knives using hand or foot driven tools
Definitions
- the present invention relates to a device for grinding and / or polishing a cutting edge of a cutting tool, preferably a household knife, comprising a handle and at least one disk for grinding and / or polishing the cutting edge of the cutting tool.
- a device for grinding and / or polishing a cutting edge of a cutting tool preferably a household knife
- the disc rotates relative to the handle. If the cutting edge of the cutting tool is applied to the disk, the disk grinds the applied cutting edge due to its rotation or rotation.
- Corresponding devices which are also referred to as “roller grinders”, are known from the patent documents DE 297 03 326 U1 and EP 3 278 928 A2. With such devices, a particularly uniform grind of the cutting edge of the cutting tool can be achieved.
- the present invention is based on the object of further improving the grinding and / or polishing effect of corresponding devices.
- the device according to claim 1 is used for grinding and / or polishing a cutting edge of a cutting tool, preferably a household knife, and comprises: a handle, at least one roller rotatable relative to the handle and at least one Disc rotatable relative to the handle for grinding and / or polishing the cutting edge of the cutting tool, the device being movable over a base by exerting force on the handle, so that the roller - rotating with respect to the handle - rolls on the base and the disc (preferably thereby ) can be set in rotation, the disc being rotatable at a different speed / Winkelge speed than the roller.
- the grinding effect can be adjusted to individual needs. For example, by increasing the speed of rotation of the disc compared to the speed of rotation of the roller, the grinding and / or polishing effect can be increased in that the disc rotates faster than the roller rolls on the support. By reducing the speed of rotation of the disk compared to the speed of rotation of the roller, particularly precise grinding and / or polishing processing is made possible.
- the ratio of the directions of rotation and / or the ratio of the rotational speed / angular speeds of the disc and roller can be adjusted, for example by an adjustable gear ratio or gear reduction, comparable bar to a gear shift.
- the rotation of the disc can be timed to the rotation of the roller and / or be mechanically coupled, eg when the disc is driven by a gear coupled to the roller, or decoupled from the rotation of the roller, eg when the disc is driven by an electric motor or a spring-wound motor.
- the rotation of the disk is preferably caused causally by the rotation of the roller, for example when the disk is driven by a gear unit coupled to the roller or when the disk is driven by a spring-wound motor.
- the spring winding motor can be wound up, for example, by rotating the roller relative to the handle and / or the disk, the energy stored in the spring winding motor then being released independently of the rotation of the roller by rotating the disk.
- the rotation of the disc although it can take place offset in time with respect to the rotation of the roller, is caused by the rotation of the roller because the spring winding motor could otherwise not provide any energy to drive the rotation of the disk.
- the roller and the disc can rotate completely independently of one another relative to the handle, for example when the disc is driven by an electric motor while the roller is stationary.
- the disk rotates when the roller rotates with respect to the handle at a different, preferably higher speed / angular speed than the roller, the speed / angular speed of the disk preferably being at least 50% higher, particularly preferably at least 100% higher than the speed / angular speed of the roller.
- the speed / angular speed of the disk preferably being at least 50% higher, particularly preferably at least 100% higher than the speed / angular speed of the roller.
- a comparatively short rolling movement of the roller leads to a significantly improved grinding or polishing effect than with conventional roller grinding, because the disc rotates faster in relation to the roller.
- the disc rotates in the same direction as or in the opposite direction to the direction of rotation of the roller when the roller is rotated relative to the handle. It can be particularly advantageous if the disk always rotates in the same direction when the roller is rotated, regardless of the direction of rotation of the roller. This can be done, for example, with a one-way clutch. This enables a particularly uniform grinding or polishing effect to be achieved.
- the disc rotates with a fixed or adjustable transmission ratio with respect to the roller when the roller is rotated relative to the handle. This also makes it easier to achieve a particularly uniform grinding or polishing effect. It can be useful if the rotary movements of the roller and the disc are coupled via a gear, preferably via a gear drive, preferably via a planetary gear. As a result, the rotary movement of the disk can be coupled particularly reliably and proportionally to the rotary movement of the roller.
- the gearbox has two coaxial central gears and at least one transmission wheel that is motion-coupled to the central gears, with the roller and the disk preferably being connected or rotationally fixed to one of the central gears, with one axis of rotation of the at least one transmission wheel being offset the axes of rotation of the central wheels is set relative to the handle.
- the central wheels are preferably in meshing engagement via the transmission wheel, so that a rotation of the roller is converted into a rotation of the transmission wheel and the same is converted into a rotation of the disk.
- the roller has internal teeth, the roller preferably being designed as a ring gear.
- the gear can be accommodated in the roller in a particularly compact manner.
- the device has an axis rotatably mounted on or in the handle, which is preferably set in rotation when the roller is rotated relative to the handle, the disk preferably being non-rotatably and / or releasably connected to the axis is the, wherein particularly preferably the roller is rotatably mounted on the axis.
- a high transmission ratio between the roller and the disc can be achieved in a particularly simple and compact manner.
- the axes of rotation of the roller and the disc and possibly the axis according to claim 8 coincide, preferably with a central axis of the handle.
- This arrangement also proves to be particularly compact and stable. In this Ausry tion, the grinding wheel can occupy the entire face of the device.
- a disk is arranged on each of the two end faces of the device, a roller preferably being arranged between each disk and the handle, each of the two disks preferably having its own drive, particularly preferably via its own gear with the roller arranged between said disc and the handle is coupled.
- disks with different coatings can be used, for example for grinding and polishing the cutting tool.
- the end sides preferably form the axial end sides of the device and extend in planes perpendicular to its central axis.
- the handle, the roller and the disk have exactly or essentially identical outer diameters, preferably such that the outer surfaces of the handle, the roller and the disk are arranged flush with one another.
- This Ausry tion has an attractive aesthetic appearance and reduces the risk of injury for a user, because there are only small gaps between the rotating parts and no rotating parts protrude.
- the outer surfaces of the handle, the roller and the disc are exactly or essentially cylindrical.
- the roller has a circumferential ring (preferably rubber ring or silicone ring), which is preferably arranged in at least one groove on the outer circumference of the roller, the ring preferably with respect to an axis of the device (of all components of the device) has the largest diameter, so that the ring rolls on the base when the device is moved over the base.
- the ring especially in the form of a rubber ring, can, due to its elastic properties, bring about a slip-free rolling of the rollers on the base.
- the ring can be reversibly transferred from the groove on the outer circumference of the roller into a groove on the outer circumference of the roller, so that when the device is moved over a base by exerting force on the handle, the disk - rotating with respect to the handle - rolls on the base and is thereby set in rotation.
- the device does not roll on the roller, but on the disc.
- the ring is optionally arranged in one of several grooves on the outer circumference of the roller, the grooves having different diameters, the ring having the largest diameter in each of these grooves with respect to an axis of the device (of all components of the device) has, so that the ring rolls on the base when the device is moved over the base.
- the rolling circumference of the roller - and thus the transmission ratio between roller and disc - can be changed in a particularly simple manner.
- a particularly elastic ring for example made of rubber, which can be stretched accordingly and adapts to the corresponding outer diameter of the grooves. It can be practical if the roller is rotatably mounted on the axis rotatably mounted on or in the handle. This design proves to be particularly compact.
- Another aspect of the present invention relates to a system comprising a device according to one of the preceding claims and a device for fixing the cutting edge of the cutting tool during grinding and / or polishing with respect to the disk, preferably in such a way that a cheek and / or extension plane of the The cutting edge of the cutting tool opposite (a surface) of the disc is oriented at an angle in the range from 5 to 30 °, preferably in the range from 10 ° to 20 °, preferably 15 °.
- the device preferably has at least one of the following features:
- the device is designed as a roller sander.
- the device has an approximately cylindrical outline.
- the device comprises two flat, preferably parallel end faces.
- the device has a length in the range from 5 cm to 15 cm, preferably in the range from 3 cm to 12 cm.
- the device has a diameter in the range from 2 cm to 15 cm, preferably in the range from 3 cm to 12 cm, preferably in the range from 4 cm to 8 cm.
- the handle preferably has at least one of the following features:
- the handle is designed as a hollow cylinder.
- the handle has a length in the range from 3 cm to 10 cm, preferably in the range from 5 cm to 8 cm.
- the handle has a diameter in the range from 2 cm to 15 cm, preferably in the range from 3 cm to 10 cm, preferably in the range from 4 cm to 8 cm.
- the outside diameter of the handle corresponds to the outside diameter of the roller and / or that of the disc.
- a lateral surface of the handle and a lateral surface of the roller are arranged flush with one another.
- the handle extends along an axis which is at the same time the axis of rotation of the roller and / or the axis of rotation of the disc.
- the handle is made of wood or metal or a combination of wood and metal.
- the handle comprises an exactly or essentially cylindrical outer surface.
- the handle comprises an exactly or substantially cylindrical bore.
- the roller preferably has at least one of the following features:
- the roller is sleeve-shaped or sleeve-shaped.
- the roller has a length in the range from 0.5 cm to 5 cm, preferably in the range from 1 cm to 3 cm
- the roller has a diameter in the range from 2 cm to 15 cm, preferably in the range from 3 cm to 10 cm, preferably in the range from 4 cm to 8 cm.
- a jacket surface of the roller and a jacket surface of the disk are arranged flush with one another.
- the roller is made of wood or metal or a combination of wood and metal.
- the roller comprises at least one circumferential groove in the lateral surface, preferably for receiving a ring, such as a rubber ring, preferably several circumferential grooves with different diameters.
- An inside diameter of the roller is smaller on one side than on the other side, preferably smaller on a side facing the disk than on a side facing the handle.
- the roller includes internal teeth, preferably on the side with the larger internal diameter.
- the disk preferably has at least one of the following features: On a side facing away from the end face, the disk comprises an integrally formed and / or integrally, preferably monolithically, threaded pin, with which the disk is preferably screwed to an axis rotatably mounted on or in the handle.
- the disc (with the exception of the threaded pin) has a length in the range from 0.2 cm to 2 cm, preferably in the range from 0.5 cm to 1 cm.
- the disk has a diameter in the range from 2 cm to 15 cm, preferably in the range from 3 cm to 10 cm, preferably in the range from 4 cm to 8 cm.
- a jacket surface of the disk and a jacket surface of the roller are arranged flush with one another.
- the disc is made of metal.
- the face of the disk has a grinding and / or polishing surface.
- the face of the disk has a grinding and / or polishing coating, preferably made of diamond.
- the disc has a chamfer or rounding at the transition between the lateral surface and the grinding and / or polishing surface.
- the face of the disk extends exactly or essentially in one plane.
- the disk is arranged on an end face of the device.
- One disk is arranged on each of the two end faces of the device.
- the transmission preferably has at least one of the following features:
- the transmission is designed as a gear transmission.
- the gear is designed as a planetary gear.
- the transmission comprises two coaxial or concentric central gears and at least one transmission gear coupled to the central gears.
- the gear is exactly or substantially between the roller and the handle is arranged, preferably in an annular space formed within the roller and closed by the handle.
- the handle is used to handle the device according to the invention or the roller sander.
- the handle is therefore suitable to be held by the hand of a user while the roller sander is moving over a surface, i.e. H. is pushed or pulled.
- a roller grinder is a grinding device that can be moved rolling over a base so that a grinding and / or polishing disk is set in rotation in order to grind the cutting edge of a cutting tool held against the disk.
- the roller grinder category was established, among other things, by DE 297 03 326 U1 and further developed by EP 3278 928 A2.
- Figure 1 is a schematic partial sectional view of a device according to the invention according to the preferred embodiment, the left half of the image is shown in section along the central axis of the device and the right half of the image is shown as an external view of the device.
- FIG. 2 shows a schematic cross-sectional view of the device according to the invention according to FIG. 1 along the line II-II, the components of the device being shown in a simplified manner.
- the present embodiment relates to a device 1, also referred to as a roller grinder, for grinding and / or polishing a cutting tool such as a household knife.
- This device 1 is designed to move rolling over a pad U to who, and thereby the end face arranged grinding and / or polishing disks 4 in rotation move, so that an applied against the disc 4 cutting edge 9 of the cutting tool is ground or polished ge.
- the principle of such roller grinders is known in principle from the patent documents EP 3278 928 A2 and DE 297 03 326 U1. In the present invention description, the differences to the known roller grinders are essentially explained.
- the roller sander 1 according to the invention shown in FIGS. 1 and 2 comprises a hollow cylindrical handle 2 made of wood, two ring-shaped rollers 3 made of metal and rotatable relative to the handle 2 on the front side of the handle 2 and two each located on the front side of the roller sander 1 Circular disks 4 made of metal, rotatable relative to the handle 2, for grinding or polishing the cutting tool.
- the force exerted on the handle 2 is usually done by the hand of a user, for example by pulling or pushing, so that the roller sander 1 is moved over a base U and the rollers 3 rotate relative to the handle 2 when rolling on the base U.
- Each disc 4 is screwed to an axis 6 rotatably mounted in the handle 2 via an integrally formed threaded pin and is connected to this axis 6 in a rotationally fixed manner.
- the handle 2, the roller 3, the disc 4 and the axis 6 are arranged coaxially to one another, so that the axes of rotation A of the roller 3, the disc 4 and the axis 6 coincide with the central axis A of the device 1 or the handle 2.
- Each of the two disks 4 arranged on the front side of the device 1 is coupled to the roller 3 arranged between said disk 4 and the handle 2 via its own gear 5.
- the handle 2, the roller 3 and the disk 4 have identical outer diameters, so that the cylindrical outer surfaces of the handle 2, the roller 3 and the disk 4 are arranged flush with one another.
- Each roller 3 comprises a circumferential rubber ring 7 which is arranged in a groove on the outer circumference of the roller 3.
- the rubber ring 7 has the largest diameter with respect to the central axis A of the device 1, so that the rubber ring 7 rolls over the base U on this base U when the device 1 is moved.
- the roller sander 1 according to the invention is shown in a partial section along the central axis A of the device 1.
- the disk 4 arranged in FIG. 1 on the right end face is also coupled to the assigned roller 3 via a (concealed, preferably identical) transmission 5.
- the roller 3 and the disc 4 are coupled to one another in a rotationally fixed manner on the right end face, ie without the interposition of a gear, as is known from the patent documents EP 3 278 928 A2.
- the left and right discs 4 can also be coupled to the respective roller 3 via different gears or gear ratios.
- the disc 4 Due to the gear 5, the disc 4 is set in rotation by rotation of the associated roller 3 compared to the handle 2, so that the disc 4 rotates at a different speed / angular speed than the roller 3 when the roller 3 rotates.
- the speed / angular speed of the disk 4 is preferably at least 50% higher than the speed / angular speed of the roller 3.
- the gear 5 is designed as a planetary gear.
- This planetary gear comprises two coaxial central gears 5a, 5b and at least one transmission gear 5c which is motion-coupled to the central gears 5a, 5b.
- several planetary gears 5c can be arranged around the axis of rotation A of the roller 3, preferably at regular angular intervals.
- the roller 3 is designed as a ring gear and comprises an internal toothing on the inner circumference on the side facing the handle 2.
- This internal toothing is in tooth engagement with an external toothing of the transmission wheel 5c, the axis 5d of which is set with respect to the handle 2 and is offset parallel to the central axis A of the handle 2.
- the axle 6 has external teeth and is also in mesh with the transmission wheel 5c.
- the roller 3 rotates by rolling on the base U in the direction R2. If the handle 2 is held with the hand of a user (not shown), the handle 2 does not rotate with respect to the base U when the roller 3 rolls on the base U.
- the axis 5d of the transmission wheel 5c which is fixed with respect to the handle 2, remains stationary with respect to the base U and the axis of rotation A of the roller 3.
- the rotational movement of the roller 3 is translated in the direction R2 in the Drehbe movement of the transmission wheel 5c in the direction R3.
- the rolling or circumferential speeds of the toothed gears in the area of the pitch circles are the same. But since the transmission wheel 5c has a much smaller gear or pitch circle diameter than the roller 3, the transmission wheel 5c rotates at a higher speed / angular speed around its axis 5d than the roller 3 around its axis A.
- the rotational movement of the transmission wheel 5c is now transmitted via a further tooth engagement to the axis 6 which is rotatably mounted in the handle 2 and which is in turn connected to the disk 4 in a rotationally fixed manner. Since the gear or pitch diameter of the transmission wheel 5c and the axis 6 are approximately the same, the speed / angular speed of the axis 6 corresponds approximately to the speed / angular speed of the transmission wheel 5c. In the present case, the rotational movements of the roller 3 and the respective adjacent disc 4 are coupled in such a way that the disc 4 rotates in the opposite direction to the direction of rotation of the roller 3 when the roller 3 rotates relative to the handle 2.
- the ratio of the rotational speed / angular speeds of the disc 4 with respect to the roller 3 can be influenced.
- the roller 3 and the disk 4 are coupled via the gear 5, so that the roller 3 represents a mechanical drive for the disk 4.
- the linear movement is converted into a rotary movement by the roller 3 rolling on the base U.
- the transmission wheel 5c is driven via a frictional or gear wheel contact with the roller 3, which then transmits its rotational movement to the axle 6 and the disk 4 connected to it.
- roller 3 and the disc 4 are mechanically decoupled from each other, with, for example, a sensor detecting the rotational movement of the roller 3 and outputting a signal to a control unit which, based on the signal output by the sensor, drives a motor Generating the rotary movement of the disk 4 controls so that the roller 3 and the disk 4 rotate with each other at different speeds.
- the transmission 5 is therefore not an essential feature of the device 1.
- the grinding wheel is made thicker than in the first exemplary embodiment and has a circumferential groove for the rubber ring on the outer circumference. If the rubber ring is moved from the groove on the outer circumference of the roller 3 shown in FIG. 1 into the groove on the outer circumference of the grinding wheel 4, the rolling speed of the roller sander 1 changes.
- the roller sander 1 has a motor-driven grinding or polishing wheel 4 at at least one end, which is driven, for example, via an electric drive and is supplied with energy from a battery or a rechargeable battery.
- the roller sander 1 has a spring-wound motor as a drive for the disk 4 at at least one end. This enables higher rotational speeds for polishing the knife cheeks.
- a axis of the device (or of the handle; axis of rotation of the roller and the disc)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Massaging Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020203144.4A DE102020203144B4 (en) | 2020-03-11 | 2020-03-11 | roller sander per |
PCT/EP2021/055861 WO2021180687A1 (en) | 2020-03-11 | 2021-03-09 | Roller sander |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4117857A1 true EP4117857A1 (en) | 2023-01-18 |
EP4117857C0 EP4117857C0 (en) | 2024-04-24 |
EP4117857B1 EP4117857B1 (en) | 2024-04-24 |
Family
ID=74870823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21711216.8A Active EP4117857B1 (en) | 2020-03-11 | 2021-03-09 | Roller sander |
Country Status (11)
Country | Link |
---|---|
US (1) | US20230108809A1 (en) |
EP (1) | EP4117857B1 (en) |
JP (1) | JP7454698B2 (en) |
KR (1) | KR20220148286A (en) |
CN (1) | CN115297996A (en) |
AU (1) | AU2021233125B2 (en) |
CA (1) | CA3174468A1 (en) |
DE (1) | DE102020203144B4 (en) |
ES (1) | ES2982010T3 (en) |
IL (1) | IL296323A (en) |
WO (1) | WO2021180687A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023106564A1 (en) | 2023-03-16 | 2024-09-19 | Horl 1993 Gmbh | Roller grinder with directly connected rollers and case for roller grinder |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1388882A (en) * | 1920-09-29 | 1921-08-30 | Paul Adolf | Blade-sharpener |
GB437733A (en) | 1933-04-28 | 1935-10-28 | Thomas Holtan | Improvements in sharpening apparatus |
US2477075A (en) * | 1945-07-11 | 1949-07-26 | Oliver B Miller | Knife and tool grinder |
GB675949A (en) | 1951-01-25 | 1952-07-16 | Alfred Leonard Walton | Improvements in appliances for use in sharpening or re-sharpening safety-razor blades |
JPS4881490U (en) * | 1972-01-07 | 1973-10-04 | ||
JPS5014688U (en) * | 1973-06-01 | 1975-02-15 | ||
CN1097669A (en) * | 1993-07-22 | 1995-01-25 | 拉斯拉普有限公司 | The device of grinding planar annular surfaces |
DE4443625A1 (en) | 1994-12-08 | 1996-06-13 | Manfred Ullrich | Hand grinder for edges of skis |
DE29703326U1 (en) | 1997-02-25 | 1997-06-12 | Horl, Otmar, 79110 Freiburg | Grinding and honing tool, for grinding cutting edges, which is designed as a self-propelled roller or disc with a handle |
JP5653820B2 (en) * | 2011-03-31 | 2015-01-14 | 株式会社マキタ | Power tools |
CN203418426U (en) * | 2013-08-15 | 2014-02-05 | 张满九 | Electric adjusting mechanism of grinder chuck |
DE102016009482B4 (en) | 2016-08-05 | 2018-06-14 | Timo Horl | Device for grinding and / or polishing a cutting tool |
CN107803723B (en) * | 2017-11-30 | 2024-08-02 | 苏州陈那自动化技术有限公司 | Grinding and polishing device |
CN110091235B (en) * | 2019-04-23 | 2020-12-25 | 天津大学 | Revolution and rotation spherical polishing tool |
-
2020
- 2020-03-11 DE DE102020203144.4A patent/DE102020203144B4/en active Active
-
2021
- 2021-03-09 AU AU2021233125A patent/AU2021233125B2/en active Active
- 2021-03-09 US US17/909,603 patent/US20230108809A1/en active Pending
- 2021-03-09 IL IL296323A patent/IL296323A/en unknown
- 2021-03-09 WO PCT/EP2021/055861 patent/WO2021180687A1/en active Application Filing
- 2021-03-09 ES ES21711216T patent/ES2982010T3/en active Active
- 2021-03-09 CA CA3174468A patent/CA3174468A1/en active Pending
- 2021-03-09 CN CN202180020920.8A patent/CN115297996A/en active Pending
- 2021-03-09 JP JP2022554778A patent/JP7454698B2/en active Active
- 2021-03-09 KR KR1020227035044A patent/KR20220148286A/en not_active Application Discontinuation
- 2021-03-09 EP EP21711216.8A patent/EP4117857B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20230108809A1 (en) | 2023-04-06 |
CN115297996A (en) | 2022-11-04 |
DE102020203144A1 (en) | 2021-09-16 |
AU2021233125B2 (en) | 2023-11-23 |
CA3174468A1 (en) | 2021-09-16 |
EP4117857C0 (en) | 2024-04-24 |
EP4117857B1 (en) | 2024-04-24 |
IL296323A (en) | 2022-11-01 |
ES2982010T3 (en) | 2024-10-14 |
JP7454698B2 (en) | 2024-03-22 |
KR20220148286A (en) | 2022-11-04 |
DE102020203144B4 (en) | 2022-06-15 |
AU2021233125A1 (en) | 2022-09-29 |
JP2023517675A (en) | 2023-04-26 |
WO2021180687A1 (en) | 2021-09-16 |
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