JP3443695B2 - Dust boot press fitting tool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust boot press-fitting tool, and in particular, a dust boot pressing member divided into two in the radial direction presses the dust boot while holding the dust boot, and the dust boot is pressed onto a predetermined portion of the ball joint. By pressing the boots, the dust boots can be easily and surely pressed without damaging the boots, and two types of dust boots with different diameters can be pressed by simply turning the single pressing member upside down. Boot press fitting tool.

[0002]

2. Description of the Related Art A ball joint is used at a joint portion of a vehicle link mechanism so that the link can operate smoothly. In FIG. 4, the ball joint 1 has a spherical ball at one end. It is composed of a ball shaft 2 on which 2a is formed and a rod end 4 which rotatably supports the ball 2a by a bearing member 3.

The ball joint 1 prevents dust from entering the bearing portion from the open end of the fitting portion between the ball shaft 2 and the rod end 4 so that the ball joint 1 can operate smoothly even under harsh conditions such as dust. In order to do so, the metal flange portion 5 a of the dust boot 5 is press-fitted and attached to the ball joint 1.

3 and 4, the dust boot 5 has a main body 5b made of rubber having excellent wear resistance and bending resistance, and a lip 5c for fitting with the ball shaft 2 at one end.
A metal flange portion 5a, to which a ring-shaped metal is attached, is formed at the other end, and the metal flange portion 5a is press-fitted into the rod end 4 to produce the metal flange portion 5a. A large diameter portion 5d having a larger diameter than that of the ball shaft 2 is formed so that the ball shaft 2 can be easily rotated.

For press-fitting the metal flange portion 5a into the rod end 4, as shown in FIG. 5, in a conventional vehicle dealer or maintenance shop, an engaging portion 6b for engaging the metal flange portion 5a is formed at the end portion 6a. The dust boot 5 having a large-diameter portion 5d having a diameter larger than the inner diameter of the pipe is pushed into the inside of the pipe-shaped dust boot pressing ring 6 and inserted into the ball shaft 2, and then the screw 2b of the ball shaft 2 is inserted. By pressing the press-fitting screw 8 into the
Was pressed by the press-fitting screw 8 to press-fit the metal flange portion 5a into the rod end 4, and then the metal flange portion 5a was press-fitted, and then the dust boot pressing ring 6 was pulled out from the dust boot 5 and mounted.

According to the above-mentioned mounting tool, when the mounting is prepared, the large-diameter portion 5d of the dust boot 5 is forcibly pushed into the pipe of the dust-boot pressing ring 6 having a diameter smaller than that of the large-diameter portion 5d for setting. So the rubber body 5
b may be damaged, and in an extreme case, a crack may be formed in the main body 5b, and dust may enter the inside through the cracked portion, which may hinder the operation of the ball joint 1.

Further, since it is not easy to work to set the large diameter portion 5d of the dust boot 5 into the inside of the dust boot pressing ring 6 having a small diameter so as not to damage it, work efficiency is improved, and thus work efficiency is improved. I couldn't.

The above conventional dust boot pressing ring 6
The engaging portion 6b formed at the end portion of is only compatible with the single dust boot 5, and a dedicated dust boot pressing ring 6 must be prepared for each different size of the dust boot 5, It was necessary to prepare the same number of dust boot pressing rings 6 as the types of dust boots 5 used.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned drawbacks of the prior art, and its purpose is to provide a storage chamber for storing dust boots therein. By constructing the pipe-shaped dust boot pressing member by dividing it into two in the radial direction, it is possible to eliminate the difficult work of setting the dust boot pressing member in the storage chamber while deforming the dust boot, and to have a thick large diameter portion. Another object of the present invention is to make it possible to easily set the dust boot on the dust boot pressing member, and also to significantly facilitate the press-fitting operation of the dust boot, thereby greatly improving the work efficiency.

Another object is to construct a pipe-shaped dust boot pressing member by dividing it in the radial direction into two parts, and project two engaging parts having different diameters on the inner peripheral surfaces of both axial end parts. By simply turning the dust boot pressing member upside down, one dust boot press-fitting tool can be used to handle two types of dust boots with different diameters of the metal flanges. It is to reduce the number of tools and cost by eliminating the need to prepare press-fitting tools.

Still another object is to store the dust boot in a storage chamber for the dust boot pressing member which is divided into two in the radial direction, and to store the dust boot pressing member combined in a pipe shape in the press-fit ring. The ball joint to the ball joint, and the nut is screwed onto the threaded portion of the ball shaft of the ball joint to rotate the ball and press the dust boot pressing member through the press-fit ring to easily and surely attach the dust boot to the ball joint. It is possible to press fit the dust boot to the ball joint at a work site such as a vehicle dealer or a maintenance shop by eliminating the need for a special assembly device. It is to be.

[0012]

In summary, according to the present invention (claim 1), a pipe-shaped storage chamber for storing dust boots is provided, and the storage chamber is divided into at least two portions in the radial direction, and the inside of the end portion in the axial direction. A dust boot pressing member having an engaging portion projectingly formed on a circumferential surface for engaging with a metal flange portion of the dust boot, and the dust boot pressing member that is housed in the dust boot and is assembled in a pipe shape are stored. And a press-fitting ring for pressing the dust boot pressing member to press-fit the metal flange portion into a predetermined portion of the mating member.

According to the present invention (claim 2), a pipe-shaped storage chamber for storing the dust boot therein is provided, and the dust boot is divided into at least two portions in the radial direction. And a dust boot pressing member in which two engaging portions having different diameters are formed so as to be able to engage with two types of metal flange portions having different diameters, respectively, and the dust boot is housed and assembled in a pipe shape. And a press-fitting ring for accommodating the dust boot pressing member and pressing the dust boot pressing member to press-fit the metal flange portion into a predetermined portion of a mating member.

According to the present invention (Claim 3), a pipe-shaped storage chamber for storing the dust boot therein is provided, and the dust boot is divided into at least two portions in the radial direction, and the dust boot is provided on the inner peripheral surfaces of both ends in the axial direction. And a dust boot pressing member in which two engaging portions having different diameters are formed so as to be able to engage with two types of metal flange portions having different diameters, respectively, and the dust boots are housed and combined in a pipe shape. And a press-fitting ring that accommodates the dust boot pressing member and presses the dust boot pressing member to press-fit the metal flange portion into a predetermined portion of the ball joint, and a threaded portion of the ball joint that is fitted to the press-fitting ring. A nut that presses the dust boot pressing member via the press-fitting ring by being screwed and set in the It is.

[0015]

The dust boot press-fitting tool of the present invention stores the dust boots in the storage chambers of the dust boot pressing members which are divided into two parts, and after assembling them in a pipe shape, inserts them into the press-fitting ring and sets them in the ball joint. A nut is screwed into the threaded portion of the ball joint protruding from the press-fitting ring to rotate the nut, so that the nut presses the metal flange portion of the dust boot through the press-fitting ring and the dust boot pressing member to remove the metal flange portion. The ball joint can be securely press-fitted into a predetermined portion to be mounted. Further, if the dust boot pressing member is turned upside down, it can be used for two types of dust boots having different diameters of the metal flange portions.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. The dust boot press-fitting tool 10 according to the present invention is shown in FIG.
Also, in FIG. 2, the dust boot pressing member 11, the press-fitting ring 12, and the nut 13 are provided.

The dust boot pressing member 11 is for pressing the metal flange portion 5a of the dust boot 5 to press it into a predetermined portion of the ball joint 1, and when combined, a storage chamber 11a is formed inside. Is a metal pipe-shaped member configured to
Two engaging portions 11c and 11d having different diameters are formed so as to project so as to engage with the metal flange portion 5a of the dust boot 5 on the inner peripheral surface of the axially opposite end portions 11b.

The press-fitting ring 12 is for accommodating the dust boot pressing member 11 and pressing the dust boot pressing member 11, and is made of metal having an inner diameter slightly larger than the outer diameter of the dust boot pressing member 11. The lid 12a has a hole 12b into which the nut 13 is fitted, the dust boot 5 is housed in the housing chamber 11a, and the dust boot pressing member 11 assembled in a pipe shape is housed therein. Is configured.

The nut 13 is screwed onto the male screw 2b formed on the ball shaft 2 of the ball joint 1 to press-fit the ring 1.
2 for pressing the female screw 13a in the center
The outer shape is formed with a flange portion 13b having a diameter much larger than the hole 12b of the press-fitting ring 12 in the center, and a hexagonal wrench hook 13c is formed above the flange portion 13b. A tool (not shown) such as a wrench is hung on and rotated to bring the flange portion 13b into contact with the lid portion 12a of the press-fitting ring 12 so that the press-fitting ring 1
It is configured to press 2.

The present invention is configured as described above,
The operation will be described below. In FIG. 2, while the dust boot 5 is housed in the housing chamber 11a, the metal flange portion 5a has an engaging portion 11 of the same size as the metal flange portion 5a.
By engaging with d, the two dust boot pressing members 11 are combined in a pipe shape.

At this time, since the inner diameter of the storage chamber 11a is set to be larger than the diameter of the large diameter portion 5d of the dust boot 5, the large diameter portion 5d is not deformed and the rubber main body 5b is damaged. It can be stored in the storage chamber 11a without the need.

After the dust boot pressing member 11 assembled in a pipe shape is inserted into the press-fitting ring 12, the dust boot 5 is inserted into the ball shaft 2 of the ball joint 1, and then the nut 13 is inserted into the hole 12b of the press-fitting ring 12. The male screw 2b is screwed while being fitted to.

When a tool (not shown) such as a wrench is hung on the spanner hook 13c to rotate the nut 13, the flange portion 13b eventually comes into contact with the lid portion 12a of the press-fit ring 12, and the nut 13 is further rotated. As a result, the collar portion 13b presses the lid portion 12a of the press-fitting ring 12 and the press-fitting ring 12 is pressed.
Is moved in the direction of the ball joint 5 (direction of arrow A).

The press-fitting ring 12 presses the metal flange portion 5a of the dust boot 5 through the engaging portion 11d of the dust boot pressing member 11, and presses the metal flange portion 5a into a predetermined portion of the ball joint 1. Mounting.

After press-fitting the dust boot 5, the nut 13 is rotated in the opposite direction to the male screw 2 of the ball shaft 2.
The screwing with b is released, and the press-fitting ring 12 is further moved in the direction of arrow B to be separated from the dust boot pressing member 11,
Next, the dust boot pressing member 11 is disassembled into two pieces, and the dust boot 5 is removed from the dust boot 5 to complete the attachment work of the dust boot 5 to the ball joint 1.

If the dust boot pressing member 11 is turned upside down, the engaging portion 11c having a smaller diameter than the engaging portion 11d.
Therefore, the dust boot 5 having a smaller diameter can be press-fitted into the mating member.

Further, in the above embodiment, the dust boot pressing member 11 is described as being divided into two in the radial direction, but this is not limited to two divisions, and division into three or more divisions is possible. Obviously good.

The dust boot pressing member 11 and the press-fitting ring 12 are usually made of metal such as steel or brass, but the material is not limited to metal, and nylon resin, polyacetal resin, It may be a synthetic resin having high strength and high abrasion resistance such as polyamide resin.

[0029]

According to the present invention, since the pipe-shaped dust boot pressing member having the storage chamber for storing the dust boot therein is divided into two in the radial direction, the dust boot is deformed. However, the difficult work of setting the dust boot pressing member in the storage chamber is unnecessary, and there is an effect that even a dust boot having a thick large diameter portion can be easily set in the dust boot pressing member, and as a result, the dust boot pressing work is performed. There is an effect that it can be remarkably facilitated and the work efficiency can be greatly improved.

Further, the pipe-shaped dust boot pressing member is divided into two in the radial direction, and two engaging portions having different diameters are formed on the inner peripheral surfaces at both axial ends so as to project.
By simply turning the dust boot pressing member upside down, there is the effect that one dust boot press-fitting tool can handle two types of dust boots with different metal flange diameters. As a result, a separate press-fitting tool can be used for each dust boot. There is no need to prepare, and there is an effect that the number of tools and the cost can be reduced.

Further, the dust boot is housed in a housing chamber for the dust boot pressing member which is divided into two parts in the radial direction, and the dust boot pressing member combined in a pipe shape is housed in the press-fitting ring to make a ball joint. Mounted on the ball joint, the nut is screwed onto the threaded portion of the ball shaft of the ball joint and rotated to press the dust boot pressing member through the press-fitting ring, so that the dust boot can be easily and surely attached to the predetermined position of the ball joint. Since it can be press-fitted into a part, a special assembly device can be dispensed with, and the effect that the dust boot can be attached to the ball joint extremely easily at a work site such as a vehicle dealer or a maintenance shop.

[Brief description of drawings]

1 to 4 relate to an embodiment of the present invention, and FIG. 1 is an exploded perspective view of a dust boot press-fitting tool.

FIG. 2 is a vertical sectional view showing a usage state of the dust boot press-fitting tool.

FIG. 3 is a perspective view of a dust boot.

FIG. 4 is a vertical cross-sectional view of a ball joint in which dust boots are press-fitted and mounted.

FIG. 5 is a vertical cross-sectional view showing a usage state of a dust boot press-fitting tool according to a conventional example.

[Explanation of symbols]

1 Ball joint as an example of mating member 2b Ball joint thread 5 dust boots 5a Metal flange part 10 Dust boot press-fit tool 11 Dust boot pressing member 11a storage room 11b Axial end 11c engaging part 11d engaging part 12 Press-fit ring 13 nuts

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) B25B 25/00-33/00 B23P 19/00-21/00 F16J 15/16-15/30 F16J 15/46-15 / 52

Claims (3)

(57) [Claims] 1. A pipe-shaped accommodating chamber for accommodating a dust boot therein is provided, which is divided into at least two portions in a radial direction and engages with a metal flange portion of the dust boot on an inner peripheral surface of an axial end portion. A dust boot pressing member having a protruding engagement portion and a dust boot pressing member that is housed in the dust boot and combined in a pipe shape are housed and the dust boot pressing member is pressed to oppose the metal flange portion. A dust boot press-fitting tool, comprising: a press-fitting ring that is press-fitted into a predetermined portion of a member. 2. A pipe-shaped storage chamber for storing dust boots therein is provided, which is divided into at least two parts in the radial direction, and two kinds of metal having different diameters of the dust boots on the inner peripheral surfaces of both axial ends. A dust boot pressing member in which two engaging portions having different diameters are formed to project so as to be able to respectively engage with a flange portion, and the dust boot pressing member in which the dust boot is accommodated and is combined in a pipe shape is accommodated. A dust boot press-fitting tool, comprising: a press-fitting ring that presses the dust boot pressing member to press-fit the metal flange portion into a predetermined portion of a mating member. 3. A pipe-shaped storage chamber for accommodating dust boots therein is provided, which is divided into at least two parts in the radial direction, and two kinds of metal having different diameters are provided on the inner peripheral surfaces of both axial ends. A dust boot pressing member in which two engaging portions having different diameters are formed to project so as to be able to respectively engage with a flange portion, and the dust boot pressing member in which the dust boot is housed and combined in a pipe shape is housed. A press-fitting ring that presses the dust boot pressing member to press-fit the metal flange portion into a predetermined portion of the ball joint, and a screw ring that is fitted to the press-fitting ring and screwed into the threaded portion of the ball joint. A dust boot press-fitting tool, comprising: a nut for pressing the dust boot pressing member via the press-fitting ring.