JP3227761U - Sleeve structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sleeve structure which avoids damage to a rim, enhances convenience of use, enhances protection, is applied to an existing rim, maintains overall rigidity, and can be easily assembled. ..
A sleeve body (10), an O-ring (20), and a carbon fiber tube (30) are provided, and the sleeve body has a drive unit (11) and an action unit (12) coaxially connected to the drive unit, and is outside the drive unit. The diameter is larger than the outer diameter of the working part, a stepped portion 13 is formed at the joint between the driving part and the outer peripheral surface of the working part, and the free end surface of the driving part has a drive hole in the axial direction. Is recessed, an action hole 121 is recessed inward in the free end surface of the action part, a ring groove 122 is provided around the outer peripheral surface of the action part, and the O-ring is the sleeve main body. The carbon fiber tube is fitted into the ring groove of the sleeve body, and one end thereof is in contact with the stepped portion, and the inner peripheral surface is in contact with the O-ring.
[Selection diagram] Fig. 1

Description

The present invention relates to an accessory of an air tool, and specifically has a sleeve structure.

When attaching or removing a rim from an automobile, an air tool is typically used as a power source to tighten or loosen the nut by matching it with the corresponding sleeve.

However, since the sleeves that are usually abutted against the air tool must have a certain degree of rigidity to prevent deformation, they are all made of metal and work when the sleeve tightens or loosens the nut. During front and back work, the sleeve is very likely to collide with the rim and can scratch the rim, a situation where demanding car owners or the price of this rim (aluminum alloy rim) It is unacceptable for car owners who are very expensive, and there are many troubles between the car repair shop (tire shop) and the car owner.

Therefore, one car repair shop (tire shop) covers the outer circumference of the sleeve with another soft material (eg fabric) to prevent scratching the rim, which is not only inconvenient to use, but also It is difficult to get into the hole where the rim sleeve enters, which makes it difficult to apply. Therefore, one vendor has developed a method of fitting a plastic sleeve to the sleeve, but if the plastic sleeve is too thin, there is no protective effect, and if the plastic sleeve is too thick, it cannot enter the hole in the rim. On the contrary, the original outer diameter of the sleeve is reduced, its overall rigidity becomes insufficient, and the plastic sleeve is in strong surface contact during the process of fitting and joining to the sleeve, making it difficult to assemble.

In view of this, the sleeve in the prior art is prone to scratching the rim, is inconvenient to use by fitting something else to the sleeve, is not well protected, is difficult to get into the rim, and has poor overall rigidity. It will be sufficient and solve well-known problems such as difficulty in assembling. Therefore, the present invention provides a sleeve structure, including a sleeve body, an O-ring, and a carbon fiber tube, the sleeve body having a drive unit and an action unit coaxially connected to the drive unit, and the drive unit. The outer diameter of the portion is larger than the outer diameter of the working portion, a step portion is formed at the joint between the driving portion and the outer peripheral surface of the acting portion, and the free end surface of the driving portion is inward in the axial direction. A drive hole is recessed, a working hole is recessed inward in the free end surface of the working part, a ring groove is provided around the outer peripheral surface of the working part, and the O-ring is the sleeve main body. The carbon fiber tube is fitted into the ring groove of the sleeve body, the carbon fiber tube is fitted to the outer peripheral surface of the working portion of the sleeve body, one end thereof abuts the step portion, and the inner peripheral surface abuts the O-ring. This avoids damaging the rim, enhances convenience of use, enhances protection, applies to existing rims, maintains overall rigidity and achieves the effect of being easy to assemble.

It is an exploded view of a preferable example of this invention. It is an assembly perspective view of the Example shown in FIG. FIG. 5 is a schematic view of an assembled cross section and a partially enlarged view of an embodiment shown in FIG.

In order for the examiner to better understand and recognize the features and features of the present invention, examples will be described below with reference to the drawings.

As shown in FIGS. 1 to 3, the sleeve structure 100 according to the preferred embodiment of the present invention mainly includes a sleeve body 10, an O-ring 20, and a carbon fiber tube 30.

With reference to FIGS. 1 to 3, the sleeve body 10 is a cylindrical cylinder manufactured integrally. Since the sleeve body 10 has a drive unit 11 and an action unit 12 coaxially and integrally connected to the drive unit 11, and the outer diameter of the drive unit 11 is larger than the outer diameter of the action unit 12. A step portion 13 is formed at a joint portion between the drive portion 11 and the outer peripheral surface of the action portion 12, and a drive hole 111 is recessed in the free end surface of the drive portion 11 in the axial direction from the axial center position. The drive hole 111 is a square hole in the extension, and a positioning hole 112 that penetrates the center of the circle in the radial direction is formed on the outer peripheral surface of the drive unit 11, and the action unit 12 is free. An action hole 121 is recessed and extended in the axial direction from the axial center position on the end surface, the action hole 121 is a hexagonal hole in this embodiment, and a ring groove 122 is formed on the outer peripheral surface of the action portion 12. It will be installed around.

As shown in FIGS. 1 to 3, the O-ring 20 is a circular ring body integrally manufactured of rubber or other elastic material. The O-ring 20 is fitted in the ring groove 122 of the sleeve body 10 and slightly partially protrudes from the ring groove 122.

With reference to FIGS. 1 to 3, the carbon fiber tube 30 is an axially hollow tube made of carbon fiber. The carbon fiber tube 30 is fitted to the outer peripheral surface of the working portion 12 of the sleeve body 10, one end thereof abuts on the step portion 13, and the inner peripheral surface abuts on the O-ring 20. The outer peripheral surface of the driving unit 11 and the outer peripheral surface of the driving unit 11 are flush with each other, but there is a gap between the inner peripheral surface of the carbon fiber tube 30 and the outer peripheral surface of the working portion 12. The thickness of the tube wall of the carbon fiber tube 30 is between 0.3 mm and 0.8 mm.

Therefore, the above content is a description of each member of the sleeve structure 100 and a combination method thereof according to a preferred embodiment of the present invention, and then the effect of its use will be described as follows.

First, the carbon fiber tube 30 can produce an extremely thin tube wall and has a certain hardness in a state where the tube wall is extremely thin (the hardness is still lower than the hardness of the metal). Therefore, after the carbon fiber tube 30 having an extremely thin tube wall is fitted to the sleeve body 10, it can be applied to an existing rim without increasing the overall outer diameter so much, and the overall outer diameter becomes too large. Without having to reduce the original outer diameter of the sleeve body 10, the overall rigidity can be maintained, and the hardness of the carbon fiber tube 30 itself can increase the wear resistance effect and increase the service life. As a result, the present invention not only avoids damage to the rim, but also has effects such as convenience in use, excellent protection, applicability to existing rims, and maintenance of overall rigidity. Has.

Next, when the carbon fiber tube 30 is fitted to the sleeve body 10, it does not face the sleeve body 10 but contacts only the O-ring 20. Therefore, not only the effect of easy assembly can be achieved, but also consumables such as the carbon fiber tube 30 and the O-ring 20 can be easily replaced.

Further, in the above embodiment, the number of the ring groove 122 and the O-ring 20 of the present invention is one, respectively, but in order to more firmly fit the sleeve body 10 and the carbon fiber tube 30, if necessary. The number of ring grooves 122 and O-rings 20 can be increased appropriately.

Further, in the above embodiment, the drive hole is a square hole, and the action hole is a hexagonal hole. However, in practice, the drive hole and the action hole may be any of a square hole, a hexagonal hole, an octagonal hole, a dodecagram hole, or a hexagonal star hole.

The above contents are merely preferable examples according to the present invention, and do not limit the scope of implementation of the present invention, and any equivalent changes made by those skilled in the art based on the present invention should belong to the scope of the present invention. Is.

100 Sleeve structure 10 Sleeve body 11 Drive part 111 Drive hole 112 Positioning hole 12 Action part 121 Action hole 122 Ring groove 13 Step part 20 O-ring 30 Carbon fiber tube

Claims (10)

It has a sleeve structure
It has a drive unit and an action unit coaxially connected to the drive unit, and a drive hole is provided in the free end surface of the drive unit in the axial direction in the axial direction, and the free end surface of the action unit is inward. A sleeve body in which an action hole is recessed in the axial direction and at least one ring groove is provided around the outer peripheral surface of the action portion.
At least one O-ring fitted in the ring groove of the sleeve body and
A sleeve structure including a carbon fiber tube fitted to the outer peripheral surface of the action portion of the sleeve body and the inner peripheral surface thereof abutting on the O-ring. The sleeve structure according to claim 1, wherein the drive hole of the sleeve body is a square hole. The sleeve structure according to claim 1, wherein the action hole of the sleeve body is a hexagonal hole. The outer diameter of the drive portion of the sleeve body is larger than the outer diameter of the action portion, a step portion is formed at a joint portion between the drive portion and the outer peripheral surface of the action portion, and one end of the carbon fiber tube is described. The sleeve structure according to claim 1, which is in contact with a step portion. The sleeve structure according to claim 1, wherein a positioning hole is formed on the outer peripheral surface of the drive portion of the sleeve body so as to penetrate the center of the circle in the radial direction. The sleeve structure according to claim 1, wherein the O-ring is a circular ring body integrally manufactured of an elastic material. The sleeve structure according to claim 1, wherein the outer peripheral surface of the carbon fiber tube is flush with the outer peripheral surface of the drive portion of the sleeve body. The sleeve structure according to claim 1, wherein there is a gap between the inner peripheral surface of the carbon fiber tube and the outer peripheral surface of the acting portion. The sleeve structure according to claim 1, wherein the thickness of the tube wall of the carbon fiber tube is between 0.3 mm and 0.8 mm. The sleeve structure according to claim 1, wherein the carbon fiber tube is an axially hollow tube made of carbon fiber.

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