Vehicle cleaning jig

Abstract

This invention provides a jig that allows for stable and efficient cleaning of the hub nut of a wheel hub. [Solution] A vehicle cleaning jig 10 for cleaning a hub spigot 130 located in the center of a vehicle's wheel hub 100, the cleaning jig 10 comprises a connecting part 20 to which a rotary tool T is connected, a main body part 30 having a hole 322 into which the hub spigot 130 is inserted, and a polishing part 40 positioned on the inner circumference side of the hole 322 and in contact with the outer circumferential surface 131 of the hub spigot 130 to perform polishing.

Description

Technical Field

[0001] The present invention relates to a cleaning tool for vehicles.

Background Art

[0002] A vehicle includes a wheel hub for attaching a brake rotor and a wheel. A cylindrical protrusion (hereinafter referred to as a hub-in-roller) for positioning the wheel is provided at the center of the wheel hub. The hub-in-roller may be soiled or rusted due to the influence of rainwater, mud, salt, etc. If dirt or rust adheres to the hub-in-roller, the mounting accuracy of the wheel may decrease, or the parts may stick together. Therefore, during vehicle maintenance, a cleaning operation is performed to polish the hub-in-roller of the wheel hub to remove dirt and rust.

[0003] Conventionally, such cleaning operations have been performed manually using a wire brush or a polishing pad. Also, Patent Document 1 proposes a cleaning brush that attaches a brush member to a rotary tool to clean the bolts of a tire. The cleaning brush of Patent Document 1 houses a brush part in a case and cleans the surface of the tire bolts by rotating the brush part with a rotary tool.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when the hub ferrule of a wheel hub is polished manually using a wire brush or polishing pad, there are problems such as variations in quality depending on the worker and the long working time. In addition, the cleaning brush described in Patent Document 1 is intended for cleaning bolts and did not adequately consider the stable cleaning of the hub ferrule.

[0006] This invention was made in view of the problems described above, and aims to provide a jig that can stably and efficiently clean the hub nut of a wheel hub. [Means for solving the problem]

[0007] This invention relates to a vehicle cleaning jig for cleaning a hub nut located in the center of a vehicle's wheel hub, and is characterized by comprising: a connecting portion to which a rotating tool is connected; a main body portion having a hole into which the hub nut is inserted; and a polishing portion positioned on the inner circumference side of the hole and in contact with the outer surface of the hub nut to perform polishing. [Effects of the Invention]

[0008] According to this invention, the hub spigot of a wheel hub can be cleaned stably and efficiently. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing an example of the configuration of a cleaning jig and wheel hub. [Figure 2] This is an exploded perspective view showing an example of the configuration of a cleaning jig. [Figure 3] This is an exploded perspective view showing an example of the configuration of a cleaning jig. [Figure 4] This is a perspective view showing the wheel hub being cleaned using a cleaning jig. [Figure 5] This is a cross-sectional view showing the wheel hub being cleaned using a cleaning jig. [Modes for carrying out the invention]

[0010] Hereinafter, an embodiment of the vehicle cleaning jig 10 according to the present invention will be described with reference to the drawings. Figure 1 is a perspective view showing an example of the configuration of the wheel hub 100 to be cleaned and the cleaning jig 10. In this embodiment, a wheel hub 100 used in a vehicle such as a regular passenger car will be used as an example, but the invention is not limited to this. In addition, in each figure, including Figure 1, the wheel hub 100 side is considered the front and the rotating tool T side is considered the rear, with the axis of rotation (or the axle of the vehicle) when the cleaning jig 10 rotates being shown as axis O, based on the state in which the wheel hub 100 is being cleaned using the cleaning jig 10.

[0011] <Configuration of Wheel Hub 100> The wheel hub 100 is a component to which the vehicle's wheel and brake rotor are attached. The wheel hub 100 includes a hub body 110, a plurality of hub bolts 120, a hub spigot 130, and a shaft portion 140.

[0012] The hub body 110 is a member that supports the wheel and brake rotor, and is formed in a disc or cylindrical shape. The hub body 110 has a flat mounting surface 111 perpendicular to the axis O. The mounting surface 111 is formed around the hub spigot 130, and the wheel or brake rotor is mounted thereon.

[0013] The hub bolts 120 are components for fixing the wheel to the wheel hub 100. Multiple hub bolts 120 are provided protruding rearward from the mounting surface 111 of the hub body 110 along the axis O, and are arranged at intervals around the hub spigot 130. In this embodiment, the wheel hub 100 has four hub bolts 120, but the number of hub bolts 120 is not limited.

[0014] The hub ferrule 130 is a cylindrical projection for positioning the wheel. The hub ferrule 130 is located in the center of the wheel hub 100 and is provided projecting rearward along the axis O from the mounting surface 111 of the hub body 110. The amount of projection of the hub ferrule 130 from the mounting surface 111 is small compared to the amount of projection of the hub bolts 120 from the mounting surface 111, and the hub ferrule 130 is positioned so as to be surrounded by multiple hub bolts 120. Dirt and rust may adhere to the outer circumferential surface 131 of the hub ferrule 130 due to the effects of rainwater, mud, salt, etc.

[0015] The shaft portion 140 is the part connected to the vehicle. The shaft portion 140 is the central part of the wheel hub 100 and is provided projecting rearward along the axis O from the mounting surface 111 of the hub body 110, and is positioned radially inward of the hub spigot 130. The amount of projection of the shaft portion 140 from the mounting surface 111 is greater than the amount of projection of the hub spigot 130 from the mounting surface 111.

[0016] The wheel hub 100 is not limited to the configuration described above, and may have different configurations depending on the vehicle type, application, drive system, etc.

[0017] <Configuration of cleaning jig 10> Figure 2 is an exploded perspective view of the cleaning jig 10 as seen from the rear. Figure 3 is an exploded perspective view of the cleaning jig 10 as seen from the front. The cleaning jig 10 is a tool for removing dirt and rust adhering to the hub spigot 130 of the wheel hub 100. The cleaning jig 10 can polish the outer surface 131 of the hub spigot 130 by rotating while connected to the rotary tool T.

[0018] The cleaning jig 10 comprises a connecting part 20, a main body part 30, and a polishing part 40. The connecting part 20 is a part that is detachably connected to a rotary tool T such as an impact wrench. The connecting part 20 is made of metal and has a substantially cylindrical shape. Further, the connecting part 20 has a square hole 21 formed at the rear end into which the tip of the rotary tool T is inserted. When the tip of the rotary tool T is inserted into the square hole 21, the rotational force is transmitted to the main body part 30 through the connecting part 20 when the rotary tool T is rotated. Note that the shape of the connecting part 20 is not limited to the shape described above, and can be appropriately changed as long as it can transmit the rotational force of the rotary tool T.

[0019] The main body part 30 is a part that serves as the base of the cleaning jig 10. The main body part 30 has a support part 31 that supports the connecting part 20 and a holding part 32 that holds the polishing part 40, and the support part 31 and the holding part 32 are integrally formed.

[0020] The support part 31 is located between the connecting part 20 and the holding part 32 and has a role of supporting the connecting part 20 at a position separated from the holding part 32. The support part 31 is made of metal and is formed in a substantially C-shaped or substantially U-shaped form when viewed from a direction orthogonal to the axis O. Therefore, a space that is open when viewed from a direction orthogonal to the axis O is formed in the support part 31. Specifically, the support part 31 has a pair of plate-like parts 311 that extend in the same direction as the axis O direction from the holding part 32, and a bridge part 312 that connects the rear ends of the pair of plate-like parts 311. An end wall part 323 (described later) of the holding part 32 is coupled to the front ends of the pair of plate-like parts 311, and the connecting part 20 is coupled to the rear end and the center of the bridge part 312.

[0021] The holding part 32 is located at the front end of the support part 31 and has a role of detachably holding the polishing part 40. The holding part 32 is made of metal and is formed in a substantially cylindrical shape that extends along the axis O. Specifically, the holding part 32 has a cylindrical part 321 in which a hole 322 that opens to the front side is formed, and an end wall part 323 that is located at the rear end of the cylindrical part 321. Further, an annular convex step part 324 that protrudes toward the front side is formed on the rear end side of the hole 322 (see FIG. 3).

[0022] Furthermore, the end wall portion 323 has a communication hole 325 that communicates with the hole 322 of the cylindrical portion 321 and is coaxial with the hole 322, but has a smaller diameter than the hole 322. In addition, the end wall portion 323 has a plurality of insertion holes 326 formed around the communication hole 325 through which fixing bolts 50 are inserted as fastening members.

[0023] The polishing section 40 is the part that removes dirt and rust adhering to the object to be cleaned. The polishing section 40 is detachably held by the holding section 32. Specifically, the polishing section 40 has a substantially annular fixed ring section 41 and an polishing body 42 fixed to the fixed ring section 41.

[0024] The fixing ring portion 41 serves to fix the polishing body 42 and to attach the polishing body 42 to the holding portion 32. The fixing ring portion 41 is made of metal or synthetic resin and is formed in a substantially annular shape when viewed from the direction of axis O. A through hole 411 is formed in the center of the fixing ring portion 41, passing through along axis O. In addition, an annular recessed concave step portion 412 is formed on the rear side of the outer periphery of the fixing ring portion 41, and an annular recessed concave step portion 413 is formed on the front side (see Figure 5 described later). Furthermore, the fixing ring portion 41 has a fastening hole 414 where a fixing bolt 50 is fastened, at a position corresponding to the insertion hole 326 of the end wall portion 323.

[0025] The polishing body 42 has the role of polishing the outer surface 131 of the hub ferrule 130 of the wheel hub 100 by contacting it. The polishing body 42 is shown in color in Figures 1 to 5. The polishing body 42 is made of, for example, a nonwoven fabric, an abrasive cloth, an elastic body containing abrasive grains, a brush containing abrasive in a nylon wire, or a wire material, and is formed in a substantially cylindrical shape when viewed from the direction of axis O. The outer diameter of the polishing body 42 is substantially the same as the outer diameter of the fixed ring portion 41 and is slightly smaller than the inner diameter of the hole 322 of the holding portion 32. In addition, a hole 421 is formed in the center of the polishing body 42 that penetrates along axis O. The inner diameter of the hole 421 of the polishing body 42 is larger than the inner diameter of the through hole 411 of the fixed ring portion 41. In addition, the inner diameter of the hole 421 of the polishing body 42 is substantially the same as the outer diameter of the hub ferrule 130 or slightly larger than the outer diameter of the hub ferrule 130. The polishing body 42 is fixed to the fixing ring portion 41 by its rear surface being bonded to the front surface of the fixing ring portion 41. The polishing body 42 is positioned by being fitted into a concave step portion 413 formed on the front surface of the fixing ring portion 41.

[0026] Furthermore, the polishing body 42 has a first polishing region 43A for polishing the outer circumferential surface 131 of the hub ferrule 130, and a second polishing region 43B for polishing the surface formed around the base end of the hub ferrule 130. The first polishing region 43A is formed by the inner circumferential surface of the cylindrical portion of the polishing body 42. On the other hand, the second polishing region 43B is formed by the annular front surface of the cylindrical portion of the polishing body 42.

[0027] When assembling the cleaning jig 10 configured as described above, the polishing section 40, with the polishing body 42 already fixed to the fixing ring portion 41, is fitted into the hole 322 of the main body portion 30 from the front along the axis O. At this time, within the hole 322 of the holding portion 32, the rear surface of the fixing ring portion 41 of the polishing section 40 and the front surface of the end wall portion 323 of the holding portion 32 come into contact, and the convex step portion 324 of the holding portion 32 and the concave step portion 412 of the fixing ring portion 41 engage. Therefore, the polishing section 40 is held in a position without rattling within the hole 322 of the holding portion 32. When the polishing section 40 is held by the holding portion 32, the polishing body 42 of the polishing section 40 is arranged in an annular shape on the inner circumference side of the hole 322 of the holding portion 32, and the second polishing region 43B is located in front of the front end of the holding portion 32.

[0028] Next, the fixing bolt 50 is inserted from the rear through the insertion hole 326 of the holding part 32 and fastened to the fastening hole 414 of the fixing ring part 41, thereby fixing the polishing part 40 to the main body part 30. Therefore, if the polishing body 42 of the polishing part 40 deteriorates when using the cleaning jig 10, the fixing bolt 50 can be removed and the polishing part 40 can be pulled out to the front of the holding part 32 to replace it with a new polishing part 40. In this way, the polishing part 40 is detachable from the main body part 30.

[0029] <Cleaning work using cleaning jig 10> Next, the cleaning operation using the cleaning jig 10 will be explained with reference to Figures 4 and 5. Figure 4 is a perspective view showing the state of cleaning the wheel hub 100 with the cleaning jig 10, with a portion of the cleaning jig 10 omitted. Figure 5 is a cross-sectional view showing the state of cleaning the wheel hub 100 with the cleaning jig 10.

[0030] First, when cleaning the hub spigot 130 of the wheel hub 100, the rotary tool T is connected to the connecting part 20. Next, the cleaning jig 10 is brought closer to the wheel hub 100 along the axis O, and the hub spigot 130 is inserted into the hole 322 of the holding part 32 of the main body part 30. Since the polishing body 42 of the polishing part 40 is arranged in an annular shape on the inner circumference side of the hole 322 of the holding part 32, inserting the hub spigot 130 into the hole 322 of the holding part 32 causes the hub spigot 130 to be inserted into the hole 421 of the polishing body 42.

[0031] At this time, the operator can see the state in which the hub-in-row 130 is inserted into the hole 421 of the polishing body 42, more specifically, the shaft portion 140 located inside the hub-in-row 130, through the space formed in the support portion 31, the communication hole 325 formed in the end wall portion 323 of the holding portion 32, and the through hole 411 formed in the fixing ring portion 41 of the polishing portion 40. In other words, the main body portion 30 and the polishing portion 40 are configured to allow the operator to see the internal parts of the hub-in-row 130. Therefore, the operator can easily insert the hub-in-row 130 into the hole 421 of the polishing body 42 and confirm that the hub-in-row 130 has been inserted to the predetermined position in the hole 421 of the polishing body 42.

[0032] Furthermore, although the shaft portion 140 of the wheel hub 100 passes through the hole 322 of the holding portion 32 and the hole 421 of the polishing body 42, it is spaced away from the inner circumferential surface of the hole 421 of the polishing body 42 toward the axis O and does not come into contact with the polishing body 42. In addition, since a through hole 411 is formed in the fixing ring portion 41 of the polishing portion 40 and a communication hole 325 is formed in the end wall portion 323 of the holding portion 32, interference between the shaft portion 140 and the polishing portion 40 and the holding portion 32 can be prevented. Also, since the support portion 31 of the main body portion 30 is formed in a roughly C-shape or a roughly U-shape, interference between the shaft portion 140 of the wheel hub 100 and the support portion 31 can be prevented.

[0033] By inserting the hub spigot 130 into the hole 322 of the holding portion 32 of the main body portion 30, the first polishing region 43A of the polishing body 42 comes into contact with the outer peripheral surface 131 of the hub spigot 130. The second polishing region 43B of the polishing body 42 comes into contact with the mounting surface 111, which is the surface formed around the base end of the hub spigot 130.

[0034] Next, the cleaning jig 10 is rotated around axis O by the rotary tool T, and the rotational force of the connecting part 20 is transmitted to the holding part 32 via the support part 31, causing the polishing part 40 held by the holding part 32 to rotate around axis O. As a result, the hub spigot 130 and the mounting surface 111 are polished by the polishing part 40 rotating around axis O.

[0035] Specifically, the first polishing region 43A of the polishing body 42 polishes the outer circumferential surface 131 of the hub ferrule 130 with which it is in contact. At this time, the first polishing region 43A of the polishing body 42 receives a reaction force from the outer circumferential surface 131 of the hub ferrule 130, causing the first polishing region 43A to deform in a direction away from the axis O, that is, in a direction that expands radially. However, because the polishing body 42 is arranged in an annular shape on the inner circumference side of the hole 322 of the holding portion 32, deformation is suppressed, and the outer circumferential surface 131 of the hub ferrule 130 can be polished stably.

[0036] Furthermore, the second polishing region 43B of the polishing body 42 polishes the mounting surface 111, which is the surface formed around the base end side of the hub ferrule 130. At this time, since the second polishing region 43B protrudes forward from the front end of the holding portion 32, the holding portion 32 does not interfere with the mounting surface 111, and the second polishing region 43B can be brought into contact with the mounting surface 111, so that the mounting surface 111 can be stably polished by the second polishing region 43B.

[0037] Furthermore, even while the cleaning jig 10 is being rotated around axis O by the rotary tool T, the operator can visually confirm that the hub spigot 130 is being inserted into the hole 421 of the polishing body 42 through the space formed in the support portion 31, the communication hole 325 of the holding portion 32, and the through hole 411 of the polishing portion 40.

[0038] As described above, this embodiment is a vehicle cleaning jig 10 for cleaning a hub spigot 130 provided in the center of a vehicle's wheel hub 100. The cleaning jig 10 comprises a connecting part 20 to which a rotary tool T is connected, a main body part 30 having a hole 322 into which the hub spigot 130 is inserted, and a polishing part 40 positioned on the inner circumference side of the hole 322 and in contact with the outer surface 131 of the hub spigot 130 to perform polishing. Therefore, by connecting the rotary tool T to the connecting part 20 and rotating the cleaning jig 10 around axis O with the hub spigot 130 inserted into the hole 322 of the main body part 30, the polishing part 40 positioned on the inner circumference side of the hole 322 comes into contact with the outer surface 131 of the hub spigot 130 and performs polishing, thereby enabling stable and efficient cleaning of the hub spigot 130 of the wheel hub 100.

[0039] Furthermore, the polishing section 40 is detachably held to the main body section 30. Therefore, if the polishing section 40 deteriorates, only the polishing section 40 can be replaced. This reduces maintenance costs compared to replacing the entire cleaning jig 10.

[0040] Furthermore, the polishing section 40 has a first polishing area 43A for polishing the outer circumferential surface 131 of the hub ferrule 130, and a second polishing area 43B for polishing the surface formed around the base end of the hub ferrule 130. Therefore, compared to polishing the surface formed around the base end of the hub ferrule 130 separately, the working time can be shortened and the work efficiency can be improved.

[0041] Furthermore, the second polishing area 43B is located in front of the tip of the main body 30 when the polishing part 40 is held by the main body 30. Therefore, polishing can be performed by bringing the second polishing area 43B into contact with the surface formed around the base end of the hub spigot 130, while suppressing contact between the main body 30 and the hub body 110.

[0042] Furthermore, the main body 30 and the polishing section 40 are configured so that the internal parts of the hub spigot 130 (for example, the shaft portion 140, etc.) can be visually inspected when the hub spigot 130 is inserted into the main body 30. Therefore, the operator can easily insert the hub spigot 130 into the polishing section 40 and confirm that the hub spigot 130 is properly inserted into the polishing section 40.

[0043] Although the present invention has been described above with reference to the embodiments described above, the present invention is not limited to the embodiments described above, and modifications are possible within the scope of the present invention.

[0044] In the embodiment described above, the case where the surface formed around the base end side of the hub ferrule 130 to be polished by the second polishing region 43B is the mounting surface 111 of the wheel was explained, but it may also be the mounting surface of the brake rotor.

[0045] In the embodiment described above, the case in which the polishing section 40 has a first polishing region 43A and a second polishing region 43B was described, but the invention is not limited to this case, and the polishing section 40 may have a first polishing region 43A but not a second polishing region 43B. In the embodiment described above, the case in which the second polishing area 43B is located in front of the tip of the main body 30 was explained, but the invention is not limited to this case, and the second polishing area 43B may be located at approximately the same position as the tip of the main body 30.

[0046] In the embodiments described above, the case in which the support portion 31 is formed in a substantially C-shape or a substantially U-shape when viewed from a direction perpendicular to the axis O was explained, but it is not limited to this case. The support portion 31 only needs to allow the internal part of the hub ferrule 130 to be visible through the main body portion 30 and the polishing portion 40, and the shape of the support portion 31 can be changed as appropriate.

[0047] In the embodiment described above, the structure for attaching the polishing section 40 to the main body section 30 was described as being fastened with fixing bolts 50. However, it is not limited to this case, and a screw-type structure may be used in which a male threaded portion is formed on the outer circumferential surface of the fixing ring section 41 and a female threaded portion is formed on the inner circumferential surface of the cylindrical section 321 of the holding section 32. Alternatively, the polishing section 40 may be attached to the main body section 30 using various fixing structures such as fitting and locking.

[0048] In the embodiments described above, the rotary tool T is described as an impact wrench, but it is not limited to this case, and may be an electric drill, an air tool, or other rotary tool. [Explanation of symbols]

[0049] 10: Cleaning jig 20: Connecting part 30: Main body part 31: Support part 32: Holding part 40: Polishing part 43A: First polishing area 43B: Second polishing area 100: Wheel hub 110: Hub body 111: Mounting surface 120: Hub bolt 130: Hub ferrule 131: Outer surface T: Rotary tool O: Axis

Claims

1. A cleaning tool for vehicles, which cleans the hub spigot located in the center of the wheel hub of a vehicle, A connecting part to which the rotary tool is connected, The main body portion having a hole into which the hub nut is inserted, A cleaning jig for a vehicle, characterized by comprising a polishing section positioned on the inner circumference side of the hole and in contact with the outer surface of the hub ferrule to perform polishing.

2. The vehicle cleaning jig according to claim 1, characterized in that the polishing part is detachably held with respect to the main body.

3. The polishing section is A first polishing region for polishing the outer surface of the hub ferrule, A cleaning jig for a vehicle according to claim 1 or 2, characterized by having a second polishing region for polishing a surface formed around the base end of the hub nut.

4. The second polishing area described above is The vehicle cleaning jig according to claim 3, characterized in that when the polishing part is held in the main body, it is located in front of the tip of the main body.

5. The main body and the polishing section are The vehicle cleaning tool according to claim 1 or 2, characterized in that the internal portion of the hub-in-row is made visible when the hub-in-row is inserted into the main body.

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