CA2010913A1 - Low friction tire mount-demount head - Google Patents
Low friction tire mount-demount headInfo
- Publication number
- CA2010913A1 CA2010913A1 CA002010913A CA2010913A CA2010913A1 CA 2010913 A1 CA2010913 A1 CA 2010913A1 CA 002010913 A CA002010913 A CA 002010913A CA 2010913 A CA2010913 A CA 2010913A CA 2010913 A1 CA2010913 A1 CA 2010913A1
- Authority
- CA
- Canada
- Prior art keywords
- mount
- rim
- insert
- tire
- demount
- 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.)
- Abandoned
Links
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 230000001815 facial effect Effects 0.000 abstract 2
- 239000011324 bead Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
- B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
- B60C25/05—Machines
- B60C25/132—Machines for removing and mounting tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
- B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
- B60C25/05—Machines
- B60C25/132—Machines for removing and mounting tyres
- B60C25/135—Machines for removing and mounting tyres having a tyre support or a tool, movable along wheel axis
- B60C25/138—Machines for removing and mounting tyres having a tyre support or a tool, movable along wheel axis with rotary motion of tool or tyre support
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A mount-demount head on a tire changer for removing tire from and replacing tires on wheel rims which have adjacent peripheral and facial surfaces thereon has a depression formed therein. A low friction insert is made to fit within the depression in the head. The insert has adjacent diverging surfaces which are positioned proximate to the rim peripheral and facial surfaces during tire mount-demount operations to form a buffer between the head and the rim surfaces during both tire removal from and replacement on the wheel rims.
A mount-demount head on a tire changer for removing tire from and replacing tires on wheel rims which have adjacent peripheral and facial surfaces thereon has a depression formed therein. A low friction insert is made to fit within the depression in the head. The insert has adjacent diverging surfaces which are positioned proximate to the rim peripheral and facial surfaces during tire mount-demount operations to form a buffer between the head and the rim surfaces during both tire removal from and replacement on the wheel rims.
Description
-1- 2(~10913 SUMMARY OF THE INVENTION
A tire changing machine mount-demount head is disclosed herein for use adjacent a tire rim which has been placed on the tire changing machine for putting tires on and taking tires off the rim which includes a low friction insert in the mount-demount head. A contact face is provided on the insert wherein the contact face includes two surfaces. Means is provided for retaining the insert in fixed position on the mount-demount head so that contact between the mount-demount head and the rim periphery and rim face is borne by the two contact face surfaces.
An insert is disclosed which is ormed to fit into a depression in a tire mount-demount head on a tire changer used for removing tires from and replacing tiees on rims which have a rim face and a rim periphery. A low friction insert body has a first surface thereon which is formed to bear against the rim face. A second surface is formed on the insert body which is formed to bear against the rim periphery. The first and second surfaces intersect at an angle so that the rim face and rim periphery are contacted thereby substantially at the same time during operation. Means is provided for securing the insert body in the mount-demount head depression.
A tire mount-demount apparatus is used for putting tires on and taking tires off of tire rims. The tire rims have adjacent rim faces and rim peripheries.
The apparatus includes a mount-demount head having a depression formed therein. A low friction insert body is formed to fit in the depression. A first face is formed on the insert body and a second face is also formed on the insert body. The first and second faces intersect forming substantially a right angle therebetween. Means is provided for securing the insert body in the depression in the mount-demount head.
A tire changing machine mount-demount head is disclosed herein for use adjacent a tire rim which has been placed on the tire changing machine for putting tires on and taking tires off the rim which includes a low friction insert in the mount-demount head. A contact face is provided on the insert wherein the contact face includes two surfaces. Means is provided for retaining the insert in fixed position on the mount-demount head so that contact between the mount-demount head and the rim periphery and rim face is borne by the two contact face surfaces.
An insert is disclosed which is ormed to fit into a depression in a tire mount-demount head on a tire changer used for removing tires from and replacing tiees on rims which have a rim face and a rim periphery. A low friction insert body has a first surface thereon which is formed to bear against the rim face. A second surface is formed on the insert body which is formed to bear against the rim periphery. The first and second surfaces intersect at an angle so that the rim face and rim periphery are contacted thereby substantially at the same time during operation. Means is provided for securing the insert body in the mount-demount head depression.
A tire mount-demount apparatus is used for putting tires on and taking tires off of tire rims. The tire rims have adjacent rim faces and rim peripheries.
The apparatus includes a mount-demount head having a depression formed therein. A low friction insert body is formed to fit in the depression. A first face is formed on the insert body and a second face is also formed on the insert body. The first and second faces intersect forming substantially a right angle therebetween. Means is provided for securing the insert body in the depression in the mount-demount head.
-2- 2 O1 O ~3 BRIE~ DESCRIPTION OF THE DRAWINGS
Figure l is a perspective view of a tire changer utilizing the present invention.
Figure 2 is a peespective view of a mount-demount head insert of the present invention.
Figure 3 is a fragmentary view of a mount-deMount head including an insert.
~ igure 4 is a sectional view along the line 4-4 of Figure l, DESCRIPTION OF THE PREFERRED EMBODIMENT
The invention disclosed herein will be described in conjunction with a rotating table type tire changer for mounting and demounting tires onto and from vehicle rims. The apparatus described herein could also be used on a tire changer having a stationary table for receiving the rim of a vehicle wheel. A tire changer of the first mentioned type is shown in Figure l having a base shown generally at ll with a tower l2 mounted at one end of the base. The tower is disposed to rock rearwardly away from the base as well as into a position where the tower is in a substantially vertical position as seen in Figure l. An arm 13 is disposed to slide through an upper portion of the tower 12 to position a tire mount-demount head 14 horizontally so that it overlies the junction of a vehicle wheel rim and a tire bead when the tower 12 is in the substantially vertical position. A vertical position adjust arm 16 is adjustable to place the mount-de~ount head in proper vertical position relative to the tire bead and the wheel rim to mount or demount the tire therefrom as desired. The horizontal and vertical adjust arms 13 and 16 are capable of being locked in position by means of manual locking mechanisms actuated by locking handles 17 and 18 respectively. The locking handles 17 and 18 may be power operated by pneumatic or hydraulic means, for example. Actuation of the locking handles spaces the 201()913 mount-demount head 14 appropriately from a vehicle eim 19 for the purpose of avoiding contact between the mount-demount head and the rim and consequent possible damage ~o the rim during tire changer operation to remove a tire 21 from or replace the tire on the rim 19.
However~ the forces generated within the structure of the tire changer due to contact between a bead on the tire 21 and the mount-demount head 14 cause the various portions of the tire changer structure to flex elastically. Consequently, the spacing of the mount-demount head from the surfaces of the tire rim 19 is not always held during tire mount-demount operations. The head 14 therefore may come into contact with a face l9a and/or a peripheral surface l9b on the rim 19. This may be best seen in Figure 4. The tire 21 is shown in phantom line in Figure 4 in contact with the mount-demount head 14 near the bead of the tire whereby forces between the mount-demount head and the tire cause the head to contact the face l9a and the peripheral surface 19b of the rim 19.
In the interests of avoiding contact between the mount-demount head 14 and the surfaces of a wheel rim 19 to thereby avoid damage to a rim in general and to decorative alu~inum or magnesium rims in particular, a depression 22 is formed in the mount-demount head. A low friction insert 23 is fabricated, such as by molding, wherein the insert has an insert body which includes a body portion 24 formed to extend into and be received by the depression 22 in the mount-demount head. The body portion 24 has a clearance hole 26 formed therein which is adapted to accept a set screw 27. A threaded hole 28 is formed in the mount-demount head in alignment with the hole 26 in the insert body when the insert is placed within the depression 22. As a result, when the insert 23 is positioned in the mount-demount head 14 the set screw 27 is advanced along the threads in the threaded hole 28 2~ 3 to enter the clearance hole 26 in the insert and thereby retain the insert within the mount-demount head Alternatively, the hole 28 may be a sized hole for accepting a press fit pin in place of the set screw 27, so that when the pin is pressed into the hole 28 to enter the clearance hole 26 in the insert, the insert will be retained in the mount-demount head in a similar fashion.
As a second alternative, adhesive may be applied on the mating surfaces between the insert 23 and the corresponding surfaces of the mount-demount head to retain the insert in position in the head. It may be seen that by use of any of the aforementioned means of securing the low friction insert in position in the mount-demount head, that the insert may be withdrawn from the head and replaced after sufficient use to cause wear of the insert 23.
The insert has a first surface 29 (Figure 2) and a second surface 31. These two surfaces intersect at an angle as may be seen in Figures 2 and 4. The first surface 29 is positioned as shown to contact the face 19a on the rim 19. The surface 31 is formed to contact the peripheral surface l9b on the rim. The aforementioned wear of the low friction insert 23 occurs at these two surfaces 29 and 31 on the insert. When a sufficient amount of these two surfaces has been worn away, the means for securing the insert in the depression 22 in the mount-demount head 14, such as the aforementioned set screw, press fit pin or adhesive, may be released and a new insert 23 secured in place in the mount-demount head.
The low friction insert 23 is shown in position in a mount-demount head 14 in Figure 3. The low friction material of the insert may be a nylon, teflon or any other appropriate plastic type material with reasonable wear characteristics. The low friction coefficient provided by the insert 23 allows contact between the insert and the rim 19 which is a sliding or lubricated contact. It may be seen that the insert therefore provides a buffer or cushion between the mount-demount head 14 and the rim face l9a and peripheral surface l9b so that the hard material of the mount-demount head does not contact and damage the rim surfaces during operation.
Although the best mode contemplated for carrying out the present invention has been herein shown and described, it will be apparent that modification and variation may be made without departing from what is regarded to be the subject matter of the invention.
HMS:lu
Figure l is a perspective view of a tire changer utilizing the present invention.
Figure 2 is a peespective view of a mount-demount head insert of the present invention.
Figure 3 is a fragmentary view of a mount-deMount head including an insert.
~ igure 4 is a sectional view along the line 4-4 of Figure l, DESCRIPTION OF THE PREFERRED EMBODIMENT
The invention disclosed herein will be described in conjunction with a rotating table type tire changer for mounting and demounting tires onto and from vehicle rims. The apparatus described herein could also be used on a tire changer having a stationary table for receiving the rim of a vehicle wheel. A tire changer of the first mentioned type is shown in Figure l having a base shown generally at ll with a tower l2 mounted at one end of the base. The tower is disposed to rock rearwardly away from the base as well as into a position where the tower is in a substantially vertical position as seen in Figure l. An arm 13 is disposed to slide through an upper portion of the tower 12 to position a tire mount-demount head 14 horizontally so that it overlies the junction of a vehicle wheel rim and a tire bead when the tower 12 is in the substantially vertical position. A vertical position adjust arm 16 is adjustable to place the mount-de~ount head in proper vertical position relative to the tire bead and the wheel rim to mount or demount the tire therefrom as desired. The horizontal and vertical adjust arms 13 and 16 are capable of being locked in position by means of manual locking mechanisms actuated by locking handles 17 and 18 respectively. The locking handles 17 and 18 may be power operated by pneumatic or hydraulic means, for example. Actuation of the locking handles spaces the 201()913 mount-demount head 14 appropriately from a vehicle eim 19 for the purpose of avoiding contact between the mount-demount head and the rim and consequent possible damage ~o the rim during tire changer operation to remove a tire 21 from or replace the tire on the rim 19.
However~ the forces generated within the structure of the tire changer due to contact between a bead on the tire 21 and the mount-demount head 14 cause the various portions of the tire changer structure to flex elastically. Consequently, the spacing of the mount-demount head from the surfaces of the tire rim 19 is not always held during tire mount-demount operations. The head 14 therefore may come into contact with a face l9a and/or a peripheral surface l9b on the rim 19. This may be best seen in Figure 4. The tire 21 is shown in phantom line in Figure 4 in contact with the mount-demount head 14 near the bead of the tire whereby forces between the mount-demount head and the tire cause the head to contact the face l9a and the peripheral surface 19b of the rim 19.
In the interests of avoiding contact between the mount-demount head 14 and the surfaces of a wheel rim 19 to thereby avoid damage to a rim in general and to decorative alu~inum or magnesium rims in particular, a depression 22 is formed in the mount-demount head. A low friction insert 23 is fabricated, such as by molding, wherein the insert has an insert body which includes a body portion 24 formed to extend into and be received by the depression 22 in the mount-demount head. The body portion 24 has a clearance hole 26 formed therein which is adapted to accept a set screw 27. A threaded hole 28 is formed in the mount-demount head in alignment with the hole 26 in the insert body when the insert is placed within the depression 22. As a result, when the insert 23 is positioned in the mount-demount head 14 the set screw 27 is advanced along the threads in the threaded hole 28 2~ 3 to enter the clearance hole 26 in the insert and thereby retain the insert within the mount-demount head Alternatively, the hole 28 may be a sized hole for accepting a press fit pin in place of the set screw 27, so that when the pin is pressed into the hole 28 to enter the clearance hole 26 in the insert, the insert will be retained in the mount-demount head in a similar fashion.
As a second alternative, adhesive may be applied on the mating surfaces between the insert 23 and the corresponding surfaces of the mount-demount head to retain the insert in position in the head. It may be seen that by use of any of the aforementioned means of securing the low friction insert in position in the mount-demount head, that the insert may be withdrawn from the head and replaced after sufficient use to cause wear of the insert 23.
The insert has a first surface 29 (Figure 2) and a second surface 31. These two surfaces intersect at an angle as may be seen in Figures 2 and 4. The first surface 29 is positioned as shown to contact the face 19a on the rim 19. The surface 31 is formed to contact the peripheral surface l9b on the rim. The aforementioned wear of the low friction insert 23 occurs at these two surfaces 29 and 31 on the insert. When a sufficient amount of these two surfaces has been worn away, the means for securing the insert in the depression 22 in the mount-demount head 14, such as the aforementioned set screw, press fit pin or adhesive, may be released and a new insert 23 secured in place in the mount-demount head.
The low friction insert 23 is shown in position in a mount-demount head 14 in Figure 3. The low friction material of the insert may be a nylon, teflon or any other appropriate plastic type material with reasonable wear characteristics. The low friction coefficient provided by the insert 23 allows contact between the insert and the rim 19 which is a sliding or lubricated contact. It may be seen that the insert therefore provides a buffer or cushion between the mount-demount head 14 and the rim face l9a and peripheral surface l9b so that the hard material of the mount-demount head does not contact and damage the rim surfaces during operation.
Although the best mode contemplated for carrying out the present invention has been herein shown and described, it will be apparent that modification and variation may be made without departing from what is regarded to be the subject matter of the invention.
HMS:lu
Claims (10)
1. A tire changing machine mount-demount head for use adjacent a tire rim having a rim face and a rim periphery, the rim being placed on the tire changing machine for putting tires on and taking tires off the rim, comprising a low friction insert in the mount-demount head, a contact face on said insert, said contact face having two surfaces, and means for retaining said insert in fixed position on said mount-demount head so that contact between the mount-demount head and the rim periphery and rim face is borne by said two contact face surfaces.
2. A mount-demount head as in claim 1 wherein said mount-demount head has a depression formed therein proximate to a tire rim when in use, said low friction insert being adapted to lodge in said depression, whereby said contact face two surfaces are proximate to the tire rim face and rim periphery when said mount-demount head is in use.
3. A mount-demount head as in claim 1 wherein said means for retaining is a set screw, said low friction insert having a hole therein for receiving said set screw.
4. A mount-demount head as in claim 1 wherein said means for retaining is an adhesive.
5. An insert formed to fit into a depression in a tire mount-demount head on a tire changer for removing tires from and replacing tires on rims having a rim face and a rim periphery, comprising a low friction insert body, a first surface on said insert body formed to bear against the rim face, a second surface on said insert body formed to bear against the rim periphery, said first and second surfaces intersecting at an angle so that the rim face and rim periphery are contacted thereby substantially at the same time, and means for securing said insert body in the mount-demount head depression.
6. An insert as in claim 5 wherein said angle of intersection comprises substantially a right angle.
7. An insert as in claim 5 wherein said means for securing comprises a press fit lock pin.
8. An insert as in claim 5 wherein said means for securing comprises adhesive.
9. A tire mount-demount apparatus for putting tires on and taking tires off of tire rims which have adjacent rim faces and rim peripheries, comprising a mount-demount head, said mount-demount head having a depression formed therein, a low friction insert body formed to fit in said depression, a first face on said insert body, a second face on said insert body intersecting said first face and forming substantially a right angle therebetween, and means for securing said insert body in said depression.
10. A tire mount-demount apparatus as in claim 9 wherein said means for securing, comprises a threaded hole in said mount-demount head, a clearance hole in said insert body; and a set screw acceptable through said clearance hole and in said threaded hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31939489A | 1989-03-06 | 1989-03-06 | |
| US07/319,394 | 1989-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2010913A1 true CA2010913A1 (en) | 1990-09-06 |
Family
ID=23242078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002010913A Abandoned CA2010913A1 (en) | 1989-03-06 | 1990-02-26 | Low friction tire mount-demount head |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH02267013A (en) |
| CA (1) | CA2010913A1 (en) |
| DE (1) | DE4007006A1 (en) |
| FR (1) | FR2643857B1 (en) |
| IT (1) | IT9019569A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1319471B1 (en) * | 2000-06-20 | 2003-10-10 | Sicesp Elettromeccaniche | TOOL FOR THE ASSEMBLY AND DISASSEMBLY OF TIRES ON RIMS AND RIMS |
| ITVR20040087A1 (en) * | 2004-05-24 | 2004-08-24 | Butler Eng & Marketing | PROTECTION DEVICE FOR TOOL OF A TIRE MOUNTING MACHINE |
| US7306023B2 (en) | 2005-05-12 | 2007-12-11 | Butler Engineering & Marketing S.P.A. | Tool protection device in a tire assembling-disassembling machine |
| US9902219B2 (en) * | 2012-06-28 | 2018-02-27 | Hennessy Industries, Inc. | Two-piece mount/demount head for a wheel servicing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3050110A (en) * | 1957-07-01 | 1962-08-21 | Ken Tool Mfg Company | Circumferentially traveling tire mounting tool |
| GB927467A (en) * | 1960-06-01 | 1963-05-29 | Brockhouse J & Co Ltd | Improvements in or relating to equipment for mounting pneumatic tyres on, and dismounting them from, vehicle wheels |
| US3104695A (en) * | 1961-09-12 | 1963-09-24 | Marjorie K Mckinney | Tool for applying and removing pneumatic tires |
| US3931845A (en) * | 1974-08-12 | 1976-01-13 | Dixon Tracy W | Tire changing device |
| US4133363A (en) * | 1977-02-25 | 1979-01-09 | Gardner Larry D | Device for mounting/demounting tires on custom automobile wheels |
| DE8524370U1 (en) * | 1985-08-26 | 1986-01-02 | Göstemeier, Manfred, 7030 Böblingen | Device for manual tire mounting on wheels |
-
1990
- 1990-02-26 CA CA002010913A patent/CA2010913A1/en not_active Abandoned
- 1990-03-06 DE DE4007006A patent/DE4007006A1/en not_active Withdrawn
- 1990-03-06 IT IT019569A patent/IT9019569A1/en unknown
- 1990-03-06 JP JP2054808A patent/JPH02267013A/en active Pending
- 1990-03-06 FR FR909002813A patent/FR2643857B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2643857A1 (en) | 1990-09-07 |
| DE4007006A1 (en) | 1990-09-13 |
| JPH02267013A (en) | 1990-10-31 |
| IT9019569A1 (en) | 1990-09-07 |
| IT9019569A0 (en) | 1990-03-06 |
| FR2643857B1 (en) | 1992-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4361988A (en) | Brake disc grinding method and apparatus | |
| US4687124A (en) | Cover for a motor vehicle spare wheel | |
| US4133363A (en) | Device for mounting/demounting tires on custom automobile wheels | |
| AU657764B2 (en) | Tire removal tool | |
| ITMI990024A1 (en) | DEVICE FOR REMOVABLE LOCKING OF AN ABRASIVE AND SIMILAR TO A WHEEL | |
| US6062289A (en) | Laminated clamp for rim holding tire changers | |
| US5168962A (en) | Brake shoe and method for adjusting a shoe clearance | |
| CA2010913A1 (en) | Low friction tire mount-demount head | |
| JP2515331B2 (en) | Tire vulcanization mold | |
| US4178819A (en) | Vibration dampening device for rotating disk | |
| EP0006764B1 (en) | A method and apparatus for grinding vehicle brake discs | |
| CA1179247A (en) | Abrasion eliminating tire changing tool | |
| EP1167088B1 (en) | Tool for mounting and removing tyres onto and from respective wheel rims | |
| CA2663631A1 (en) | Wheel rim cover | |
| CN216830243U (en) | Automobile endoscope base surface polishing device | |
| US5988955A (en) | Lug nut taper trueing tool | |
| GB1478911A (en) | Method of removing tread material from a pneumatic tzre | |
| JP2668318B2 (en) | Method and apparatus for removing flat tire | |
| JP2520893Y2 (en) | Guide pin support part of guide pin type disc brake | |
| US5125187A (en) | Mounted non-directional rotor finishing device | |
| CN220994101U (en) | Grinding head replacing structure of sander | |
| JP2568143Y2 (en) | Braking disk grinding system | |
| CN219309761U (en) | Shaft sleeve rounding device | |
| KR102528791B1 (en) | Coupler for hand grinder | |
| CN212637030U (en) | Height-adjustable caster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |