GRINDING AND CLEANING TOOL

Abstract

A grinding and cleaning tool, comprising a shaft, a driven member, a first grinding body, and a second grinding body. The shaft has a driving end and a driven end. The shaft is provided with a first end face at the driving end, and the driven end is adapted to be directly or indirectly driven by a power tool. The driven member is sleeved on the shaft and configured to rotate synchronously with the shaft. The driven member is provided with a second end face. The first grinding body is disposed on the first end face, and the second grinding body is disposed on the second end face.

Description

BACKGROUND OF THE INVENTION

The present invention relates to a grinding and cleaning tool, and more particularly to a grinding and cleaning tool suitable for wheel rims.

Over time, automotive wheel rims tend to develop surface rust or accumulate dirt. Currently, cleaning primarily relies on manual brushes or power tools, such as electric or pneumatic devices equipped with grinding heads. While manual brushes are time-consuming and labor-intensive, power tools, although more efficient, lack grinding heads specifically designed for wheel rims. This issue is particularly pronounced for the inner sides of rims, where operators must either use grinding heads of unsuitable shapes and sizes or frequently switch between different types of grinding heads, leading to reduced cleaning efficiency and quality.

SUMMARY OF THE INVENTION

The present invention provides a grinding and cleaning tool capable of simultaneously grinding and cleaning different parts of an object using a first grinding body and a second grinding body.

The embodiments of the present invention propose a grinding and cleaning tool, comprising a shaft, a driven member, a first grinding body, and a second grinding body. The shaft has a driving end and a driven end. The shaft is provided with a first end face at the driving end. The driven end is adapted to be directly or indirectly driven by a power tool. The driven member is sleeved on the shaft and configured to rotate synchronously with the shaft. The driven member is provided with a second end face. The first grinding body is disposed on the first end face. The second grinding body disposed on the second end face.

In an embodiment, the driven member is configured to rotate synchronously with the shaft along a rotation axis. The first end face and the second end face are respectively perpendicular to the rotation axis. The first grinding body protrudes along the rotation axis beyond the second grinding body by at least a height.

In an embodiment, the first grinding body extends radially along the rotation axis and abuts against the second grinding body.

In an embodiment, the shaft is provided with an engaging portion and a body portion along the rotation axis. The first end face is formed on the body portion. The driven member is provided with an engaging hole sleeved on the engaging portion along the rotation axis. The second grinding body is provided with a bore sleeved on the body portion along the rotation axis.

In an embodiment, the engaging portion and the engaging hole have corresponding polygonal cross sectional shapes.

In an embodiment, the engaging portion is a hexagonal prism, and the engaging hole is a corresponding hexagonal hole.

In an embodiment, the shaft is further provided with a limiting groove adjacent to the engaging portion. The limiting groove is formed on an outer surface of the shaft and engaged with a limiting member. The limiting member abuts against the engaging portion.

In an embodiment, the shaft is provided with a first through hole penetrating the driving end and the driven end along the rotation axis. The first grinding body is provided with a second through hole aligned with the first through hole along the rotation axis.

In an embodiment, the shaft is further provided with a driven portion at the driven end, and the first through hole penetrates the driven portion. An outer surface of the driven portion is provided with at least one groove. The at least one groove is configured to engage with a fastener of a sleeve to connect the driven portion to the sleeve.

In another embodiment, the first through hole has a first segment aligned with the second through hole and a second segment communicating with the first segment. The shaft is further provided with a driven portion at the driven end. The driven portion is fixed to the second segment of the first through hole. The driven portion is hexagonal.

In a further embodiment, the shaft is further provided with at least one biasing portion extending from the body portion in a direction parallel to the rotation axis, and at least one limiting portion disposed on the at least one biasing portion. The at least one biasing portion is configured to pivot relative to the body portion and switch between a locking position and a releasing position. The at least one limiting portion extends radially along the rotation axis. The at least one limiting portion selectively abuts against the driven member as the at least one biasing portion switches between the locking position and the releasing position.

In a further embodiment, the shaft is further provided with a driven portion at the driven end. A gap is radially formed between the driven portion and the at least one biasing portion along the rotation axis, allowing the at least one biasing portion to pivot relative to the body portion.

In a further embodiment, the number of both the at least one biasing portion and the at least one limiting portion is two. The two biasing portions are respectively located on opposite sides of the body portion. The two limiting portions are respectively disposed on the two biasing portions.

Based on the above, the grinding and cleaning tool provided by the embodiments of the present invention includes a first grinding body disposed on the first end face of the shaft and a second grinding body disposed on the second end face of the driven member. When the shaft is driven by a power tool to rotate synchronously with the driven member, the first grinding body and the second grinding body are capable of simultaneously grinding and cleaning different parts of an object.

The present invention will become clearer in light of the following detailed description of illustrative embodiments of this invention described in connection with the drawings.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a grinding and cleaning tool of a first embodiment according to the present invention.

FIG. 2 is an exploded perspective view of the grinding and cleaning tool of FIG. 1.

FIG. 3 is a cross sectional view of the grinding and cleaning tool of FIG. 1.

FIG. 4 is a perspective view of a grinding and cleaning tool of a second embodiment according to the present invention.

FIG. 5 is an exploded perspective view of the grinding and cleaning tool of FIG. 4.

FIG. 6 is a cross sectional view of the grinding and cleaning tool of FIG. 4.

FIG. 7 is a perspective view of a grinding and cleaning tool of a third embodiment according to the present invention.

FIG. 8 is an exploded perspective view of the grinding and cleaning tool of FIG. 7.

FIG. 9 is a cross sectional view of the grinding and cleaning tool of FIG. 7.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 to 3, a grinding and cleaning tool according to a first embodiment of the present invention includes a shaft 10, a driven member 20, a first grinding body 30, and a second grinding body 40. The shaft 10 has a driving end 101 and a driven end 102. Additionally, the shaft 10 is provided with a first end face 11 at the driving end 101. The driven end 102 is adapted to be indirectly driven by a power tool (not shown). It is understood that the power tool can be a non-manual tool, such as an electric or pneumatic tool. The driven member 20 is sleeved on the shaft 10 and configured to rotate synchronously with the shaft 10 when driven by the power tool. The driven member 20 is provided with a second end face 21. The first grinding body 30 is disposed on the first end face 11, and the second grinding body 40 is disposed on the second end face 21. Accordingly, when the shaft 10 is driven by the power tool to rotate synchronously with the driven member 20, the first grinding body 30 and the second grinding body 40 can simultaneously grind and clean different parts of an object, such as a wheel rim.

In this embodiment, the first grinding body 30 and the second grinding body 40 may be integrally formed from coarse abrasive materials on the first end face 11 and the second end face 21, respectively. The coarse abrasive materials may be selected from currently known abrasive materials.

Furthermore, the driven member 20 is configured to rotate synchronously with the shaft 10 along a rotation axis L. The first end face 11 and the second end face 21 are respectively perpendicular to the rotation axis L, and the first grinding body 30 projects along the rotation axis L beyond the second grinding body 40 by at least a height H30. This allows both the end face and the side surface of the first grinding body 30 to grind and clean an object. Additionally, the first grinding body 30 extends radially along the rotation axis L and abuts against the second grinding body 40.

To ensure that the driven member 20 can rotate synchronously with the shaft 10, the shaft 10 is provided with an engaging portion 12 and a body portion 13 along the rotation axis L. The first end face 11 is formed on the body portion 13. The driven member 20 is provided with an engaging hole 22 sleeved on the engaging portion 12 along the rotation axis L, and the second grinding body 40 is provided with a bore 41 sleeved on the body portion 13 along the rotation axis L. Furthermore, the engaging portion 12 and the engaging hole 22 have corresponding polygonal cross sectional shapes. In this embodiment, the engaging portion 12 is in the form of a hexagonal prism, and the engaging hole 22 is a hexagonal hole.

To prevent the driven member 20 from detaching from the shaft 10, the shaft 10 is further provided with a limiting groove 14 adjacent to the engaging portion 12. The limiting groove 14 is formed on the outer circumferential surface of the shaft 10 and is engaged with a limiting member 50, and the limiting member 50 abuts against the engaging portion 12.

Additionally, the shaft 10 is provided with a first through hole 15 extending through the driving end 101 and the driven end 102 along the rotation axis L, and the first grinding body 30 is provided with a second through hole 31 aligned with the first through hole 15 along the rotation axis L. This allows the second through hole 31 to accommodate smaller objects to be ground and cleaned.

In this embodiment, the shaft 10 is further provided with a driven portion 16 at the driven end 102, and the first through hole 15 extends along the rotation axis L through the driven portion 16. The outer circumferential surface of the driven portion 16 is provided with at least one groove 161, and the at least one groove 161 is configured to engage with a fastener 61 of a sleeve 60 to connect the driven portion 16 to the sleeve 60. In this embodiment, the number of grooves 161 may be six. Thus, the sleeve 60 can be connected to the power tool, enabling the driven end 102 to be indirectly driven by the power tool via the sleeve 60 to rotate the driven member 20.

Referring to FIGS. 4 to 6, a grinding and cleaning tool according to a second embodiment of the present invention is generally similar to the first embodiment, with the only difference being the structure of the shaft 10a. In this embodiment, the first through hole 15a has a first segment 151a aligned with the second through hole 31 and a second segment 152a communicating with the first segment 151a. The shaft 10a is further provided with a driven portion 16a at the driven end 102a, and the driven portion 16a is fixed to the second segment 152a of the first through hole 15a. The driven portion 16a is in the form of a hexagonal prism. Therefore, the driven portion 16a can be directly connected to the power tool, enabling the driven end 102a to be directly driven by the power tool to rotate the driven member 20.

Referring to FIGS. 7 to 9, a grinding and cleaning tool according to a third embodiment of the present invention is generally similar to the first embodiment, with the only difference being the structure of the shaft 10b. In this embodiment, the shaft 10b is further provided with at least one biasing portion 14b extending from the body portion 13b in a direction parallel to the rotation axis L and at least one limiting portion 15b disposed on the at least one biasing portion 14b. The at least one biasing portion 14b is configured to pivot relative to the body portion 13b and switch between a locking position and a releasing position. The at least one limiting portion 15b extends radially along the rotation axis L, and the at least one limiting portion 15b selectively abuts against the driven member 20 as the at least one biasing portion 14b switches between the locking position and the releasing position. In other words, when the at least one biasing portion 14b is in the locking position, the at least one limiting portion 15b abuts against the driven member 20, preventing the shaft 10b from moving along the rotation axis L relative to the driven member 20. Conversely, when the at least one biasing portion 14b is in the releasing position, the at least one biasing portion 14b pivots toward the rotation axis L, causing the at least one limiting portion 15b to disengage from the driven member 20, allowing the shaft 10b to move along the rotation axis L relative to the driven member 20.

To enable the at least one biasing portion 14b to pivot relative to the body portion 13b, the shaft 10b is further provided with a driven portion 16b at the driven end 102b, and a gap 17b is radially formed between the driven portion 16b and the at least one biasing portion 14b along the rotation axis L. The at least one biasing portion 14b can pivot relative to the body portion 13b through the gap 17b when an external force is applied by the user, thereby switching from the locking position to the releasing position. Once the external force applied by the user is removed, the at least one biasing portion 14b can automatically return from the releasing position to the locking position. Furthermore, in this embodiment, the driven portion 16b is provided with a square hole for connecting to a power tool (not shown).

In this embodiment, the at least one biasing portion 14b and the at least one limiting portion 15b each consist of two components. The two biasing portions 14b are respectively located on opposite sides of the body portion 13b, and the two limiting portions 15b are respectively disposed on the two biasing portions 14b.

In summary, in the embodiments of the present invention, the first grinding body 30 is disposed on the first end face 11, and the second grinding body 40 is disposed on the second end face 21. When the shafts 10, 10a, or 10b are driven by a power tool to rotate synchronously with the driven member 20, the first grinding body 30 and the second grinding body 40 can simultaneously grind and clean different parts of an object.

Although specific embodiments have been illustrated and described, numerous modifications and variations are still possible without departing from the scope of the invention. The scope of the invention is limited by the accompanying claims.

Claims

1. A grinding and cleaning tool comprising: a shaft having a driving end and a driven end, wherein the shaft is provided with a first end face at the driving end, and wherein the driven end is adapted to be directly or indirectly driven by a power tool;a driven member sleeved on the shaft and configured to rotate synchronously with the shaft, and wherein the driven member is provided with a second end face;a first grinding body disposed on the first end face; anda second grinding body disposed on the second end face.

2. The grinding and cleaning tool of claim 1, wherein the driven member is configured to rotate synchronously with the shaft along a rotation axis, wherein the first end face and the second end face are respectively perpendicular to the rotation axis, and wherein the first grinding body protrudes along the rotation axis beyond the second grinding body by at least a height.

3. The grinding and cleaning tool of claim 2, wherein the first grinding body extends radially along the rotation axis and abuts against the second grinding body.

4. The grinding and cleaning tool of claim 2, wherein the shaft is provided with an engaging portion and a body portion along the rotation axis, wherein the first end face is formed on the body portion, wherein the driven member is provided with an engaging hole sleeved on the engaging portion along the rotation axis, and wherein the second grinding body is provided with a bore sleeved on the body portion along the rotation axis.

5. The grinding and cleaning tool of claim 4, wherein the engaging portion and the engaging hole have corresponding polygonal cross sectional shapes.

6. The grinding and cleaning tool of claim 5, wherein the engaging portion is a hexagonal prism, and wherein the engaging hole is a corresponding hexagonal hole.

7. The grinding and cleaning tool of claim 4, wherein the shaft is further provided with a limiting groove adjacent to the engaging portion, wherein the limiting groove is formed on an outer surface of the shaft and engaged with a limiting member, and wherein the limiting member abuts against the engaging portion.

8. The grinding and cleaning tool of claim 2, wherein the shaft is provided with a first through hole penetrating the driving end and the driven end along the rotation axis, and wherein the first grinding body is provided with a second through hole aligned with the first through hole along the rotation axis.

9. The grinding and cleaning tool of claim 8, wherein the shaft is further provided with a driven portion at the driven end, and the first through hole penetrates the driven portion, wherein an outer surface of the driven portion is provided with at least one groove, and wherein the at least one groove is configured to engage with a fastener of a sleeve to connect the driven portion to the sleeve.

10. The grinding and cleaning tool of claim 8, wherein the first through hole has a first segment aligned with the second through hole and a second segment communicating with the first segment, wherein the shaft is further provided with a driven portion at the driven end, wherein the driven portion is fixed to the second segment of the first through hole, and wherein the driven portion is hexagonal.

11. The grinding and cleaning tool of claim 4, wherein the shaft is further provided with at least one biasing portion extending from the body portion in a direction parallel to the rotation axis, and at least one limiting portion disposed on the at least one biasing portion, wherein the at least one biasing portion is configured to pivot relative to the body portion and switch between a locking position and a releasing position, wherein the at least one limiting portion extends radially along the rotation axis, and wherein the at least one limiting portion selectively abuts against the driven member as the at least one biasing portion switches between the locking position and the releasing position.

12. The grinding and cleaning tool of claim 11, wherein the shaft is further provided with a driven portion at the driven end, and wherein a gap is radially formed between the driven portion and the at least one biasing portion along the rotation axis, allowing the at least one biasing portion to pivot relative to the body portion.

13. The grinding and cleaning tool of claim 11, wherein the number of both the at least one biasing portion and the at least one limiting portion is two, wherein the two biasing portions are respectively located on opposite sides of the body portion, and wherein the two limiting portions are respectively disposed on the two biasing portions.