JP3166040U - Boot press fitting jig - Google Patents

Abstract

[PROBLEMS] To provide a boot press-fitting jig capable of reducing work time and labor required for press-fitting mounting work of a boot while preventing the boot from being damaged.
A boot press-fitting jig for press-fitting a boot into a stud part (3a) of a ball stud (3) which is held by a socket (1) and constitutes a ball joint (2) together with the socket (1). A pair of gripping parts 7, 8 and a pair of clamping parts 9, 10 that are opened and closed are provided on a pair of cross members 5, 6 that can be rotated, and the pair of clamping parts are provided on one end side of the boot 4. The socket 1 includes a first holding part 9 formed in a ring shape that can press the flange part 4a, and a boot 4 that is externally fitted to the stud part 3a and in which the flange part 4a is pressed by the first holding part 9. It is comprised with the 2nd clamping part 10 comprised so that contact | abutting to the back surface side of the socket 1 was possible.
[Selection] Figure 2

Description

  The present invention relates to a boot press-fitting jig suitable for use in assembling a boot in a ball joint used for a joint portion of an automobile link mechanism, for example.

  For example, a ball joint provided on a lower arm or a tie rod end of an automobile is provided with a boot made of rubber or the like for dust prevention, and this boot is used in a state where it is press-fitted to a stud portion of a ball stud constituting the ball joint. It is done.

  And the conventional method for press-fitting the boot into the stud part is a state in which the boot is fitted into the outside of the stud part to some extent in advance, and the flange (ear) part of the boot and the socket constituting the ball joint Is sandwiched with a tool such as a pliers, and the sandwiched position is shifted little by little in the circumferential direction of the flange portion so that the entire circumference of the flange portion is uniformly fitted to a predetermined position. .

  However, in the above-described conventional method, the working time becomes long, and there is a possibility that the flange portion may be damaged when the flange portion of the boot is sandwiched between tools such as a pliers.

  In addition to the above method, there is a method in which a metal dedicated jig is placed on the boot and the boot is press-fitted by hitting the dedicated jig with a hammer. However, with this method, if the lower arm to which the ball joint socket and ball stud are attached is in a state where it is assembled to the automobile and cannot be firmly fixed, the lower arm is struck when the special jig is hit with a hammer. Etc. move and force is not transmitted well, and work efficiency decreases. Furthermore, if there is no skill that the operator is skilled in, there is a risk that the boot after press-fitting will be in a tilted defective state, or the boot may be damaged by a hammer.

  The present invention has been made in consideration of the above-mentioned matters. The purpose of the present invention is to press-fit a boot that can reduce work time and labor required for press-fitting and installing the boot while preventing the boot from being damaged. It is to provide a jig for use.

  In order to achieve the above object, a boot press-fitting jig according to the present invention is a boot press-fitting jig for press-fitting a boot into a stud portion of a ball stud which is held by a socket and constitutes a ball joint together with the socket. The pair of crossing members that are rotatable relative to each other with the crossing portion as an axis is provided with a pair of gripping portions that open and close and a pair of holding portions, and the pair of holding portions are on one end side of the boot The first clamping part formed in a ring shape that can press the flange part provided on the socket, and the boot that is externally fitted to the stud part and the flange part is pressed by the first clamping part It is comprised with the 2nd clamping part comprised so that contact | abutting to the back surface side of this socket was possible.

  In the boot press-fitting jig, the second holding portion may be formed in a ring shape (Claim 2).

  In the boot press-fitting jig, an end portion of the first clamping portion on a side in contact with the flange portion of the boot may be configured to contact over the entire upper surface of the flange portion. ).

  In the boot press-fitting jig, the position of the intersecting portion in the pair of intersecting members may be variable.

  In the boot press-fitting jig, the socket and the ball stud may be provided on a lower arm or a tie rod end.

  The invention according to claims 1 to 5 provides a boot press-fitting jig capable of reducing work time and labor required for press-fitting and attaching work of the boot while preventing the boot from being damaged.

  That is, in the boot press-fitting jig according to the first to fifth aspects, the boot can be press-fitted and mounted by simply moving the pair of gripping parts so as to be closed, and the press-fitting and mounting operation is performed in a short time and with low labor. be able to.

  Moreover, the boot press-fitting jig has the following effects. That is, in the conventional method in which the boot flange is sandwiched between the above-mentioned tools such as pliers, a large force is locally applied to the flange of the boot, and the boot is covered with a special jig and hit with a hammer. In the above conventional method, since a large impact is applied to the boot, both methods have a demerit that the boot is easily damaged. However, with the boot press-fitting jig of the present invention, it is possible to perform press-fitting mounting work by applying force almost evenly and slowly to the entire flange portion of the boot, so it is effective to cause damage to the boot. Can be prevented.

  In the boot press-fitting jig of the invention according to claim 2, even if a convex portion exists on the back surface of the socket, for example, the convex portion can be avoided by the ring-shaped second clamping portion. Can be brought into contact with the back side of the socket with good stability, so that the press-fitting work of the boot can be performed satisfactorily.

  In the boot press-fitting jig according to claim 3, the end portion of the first clamping portion is brought into contact with the entire upper surface of the flange portion of the boot, and the boot flange is pressed against the entire flange portion of the boot during the press-fit mounting operation. A force can be applied substantially uniformly, and the occurrence of breakage in the boot can be more reliably prevented.

  In the boot press-fitting jig of the invention according to claim 4, since the position of the intersecting portion in the pair of intersecting members is variable, the interval between the pair of sandwiching portions is adjusted according to the size of the socket, the boot, etc. The press-fitting work of the boot can be performed more reliably and satisfactorily.

1 is a perspective view schematically showing a configuration of a boot press-fitting jig according to an embodiment of the present invention. (A) And (B) is explanatory drawing which shows roughly the procedure which press-fits and mounts a boot using the said jig | tool for press-fitting a boot.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, a boot press-fitting jig (hereinafter abbreviated as a jig) according to the present embodiment press-fits a boot 4 into a stud portion 3a of a ball stud 3 that is held by a socket 1 and constitutes a ball joint 2 together with the socket 1. It is for mounting | wearing (refer FIG. 2 (A)).

  As shown in FIG. 2A, the ball joint 2 of the present embodiment is provided at the tie rod end, but is not limited thereto, and may be provided at, for example, a lower arm.

  The ball stud 3 is a metal rigid member, and includes a ball portion (not shown) that is housed and held in the socket 1 and a stud portion 3a that protrudes out of the socket 1 and serves as a shaft.

  As shown in FIG. 1, the jig according to the present embodiment includes a pair of gripping portions 7 and 8 that are opened and closed and a pair of crossing members 5 and 6 that are relatively rotatable about the crossing portion. Are provided.

  The pair of sandwiching portions 9 and 10 are externally fitted to a first sandwiching portion 9 formed in a ring shape capable of pressing a flange portion (ear portion) 4a provided on one end side of the boot 4 and a stud portion 3a. It is comprised with the 2nd clamping part 10 comprised so that a back surface side of the socket 1 was contactable so that the socket 1 could be pinched | interposed with the boot 4 in the state in which the flange part 4a is pressed by the one clamping part 9. FIG. Yes.

  In order to press-fit the boot 4 to the stud portion 3a using the jig of this embodiment, as shown in FIG. 2 (A), the boot 4 is previously fitted to the outside of the stud portion 3a to some extent, Then, the first clamping part 9 of the jig is brought into contact with the flange part 4 a of the boot 4, and the second clamping part 10 is brought into contact with the back surface side (lower surface side) of the socket 1. And if it moves so that a pair of holding parts 7 and 8 may be closed in this state, it will operate so that a pair of clamping parts 9 and 10 may also be closed by this operation, and the state where the boot 4 was press-fit by the stud part 3a before long. (See FIG. 2B). The mounting work of the boot 4 is completed as described above, and then the pair of holding parts 9 and 10 can be separated from the ball joint 2 by moving the pair of holding parts 7 and 8 so as to open.

  Thus, according to the jig of this embodiment, in order to press-fit the boot 4, it is only necessary to move the pair of gripping portions 7, 8 so that the press-fit operation is performed in a short time and with low labor. be able to.

  Moreover, the jig of this embodiment has the following effects. That is, in the conventional method in which the boot flange is sandwiched between the above-mentioned tools such as pliers, a large force is locally applied to the flange of the boot, and the boot is covered with a special jig and hit with a hammer. In the above conventional method, since a large impact is applied to the boot, both methods have a demerit that the boot is easily damaged. However, in the jig according to the present embodiment, the entire flange portion 4a of the boot 4 can be press-fitted and attached by applying force almost uniformly and slowly, so that the boot 4 is effectively damaged. Can be prevented.

  And in order to ensure the effect of the said effect that force can be applied substantially uniformly with respect to the whole flange part 4a of the boot 4, in this embodiment, FIG.1, FIG.2 (A) and (B) ), The end portion (lower end portion) 9a on the side of the first clamping portion 9 that comes into contact with the flange portion 4a of the boot 4 is formed to be thicker (flange shape in the illustrated example) than the other portions. The tip (lower) end surface of the end portion 9a is configured to abut over the entire upper surface of the flange portion 4a.

  Here, although the convex part 1a exists in the back surface (lower surface) of the socket 1 of this embodiment as shown to FIG. 2 (A) and (B), the 2nd clamping part 10 of this embodiment is a convex part. Since it has a ring shape that can avoid 1a, the second clamping part 10 can be brought into contact with the back surface (lower surface) of the socket 1a with good stability.

  Further, in the present embodiment, as shown in FIGS. 1 and 2A and 2B, the jig is configured so that the position of the intersecting portion in the pair of intersecting members 5 and 6 is variable. According to the size of the socket 1 and the boot 4, etc., the distance between the pair of clamping portions 9 and 10 can be adjusted. Here, in a general water pump plier, the pivot (joint part) slides in order to increase the opening range (open the tip part widely), and the number of adjustment stages is larger than that of other types of pliers. For example, such a known structure can be adopted as a structure for changing the position of the intersection in multiple stages.

  It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified and implemented without departing from the gist of the present invention. For example, the following modifications can be given.

  The boot 4 may be entirely made of an elastic body such as rubber. For example, a metal ring body may be attached to one end of the boot 4 so that the flange portion 4a is made of metal.

  The position of the intersecting portion in the pair of intersecting members 5 and 6 may not be variable, and in the case of being variable, the intersecting portion can be fixed at an arbitrary position in the variable range instead of stepwise. May be adopted.

  Needless to say, the above modifications may be combined as appropriate.

DESCRIPTION OF SYMBOLS 1 Socket 2 Ball joint 3 Ball stud 3a Stud part 4 Boot 4a Flange part 5 Crossing member 6 Crossing member 7 Gripping part 8 Gripping part 9 First clamping part 10 Second clamping part

Claims (5)

A boot press-fitting jig for press-fitting a boot into a stud portion of a ball stud that is held by a socket and constitutes a ball joint together with the socket,
A pair of crossing members that are relatively rotatable around the crossing part are provided with a pair of gripping parts and a pair of clamping parts that are opened and closed,
The pair of sandwiching portions includes a first sandwiching portion formed in a ring shape capable of pressing a flange portion provided on one end side of the boot, and the flange portion by the first sandwiching portion that is externally fitted to the stud portion. A boot press-fitting jig configured with a second clamping part configured to be able to abut on the back side of the socket so that the socket can be clamped with the boot in a state where the socket is pressed.   The boot press-fitting jig according to claim 1, wherein the second clamping portion is formed in a ring shape.   3. The boot press-fitting jig according to claim 1, wherein an end portion of the first clamping portion that is in contact with the flange portion of the boot is configured to contact over the entire upper surface of the flange portion.   The boot press-fitting jig according to any one of claims 1 to 3, wherein a position of the intersecting portion in the pair of intersecting members is variable.   The boot press-fitting jig according to any one of claims 1 to 4, wherein the socket and the ball stud are provided on a lower arm or a tie rod end.

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