JP2511089Y2 - Vehicle shock absorber mounting structure - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (1) Industrial Application Field of the Invention In the present invention, the upper end of a shock absorber supporting a swing arm for wheel suspension is rotatably connected to a vehicle body through a ball joint. The present invention relates to a shock absorber mounting structure in a vehicle of the type described.

(2) Conventional Technology In the conventional shock absorber mounting structure for a vehicle of the above type, as shown in FIG. 3, the shock absorber D ′ is placed in the cylindrical case 05 of the ball joint J ′ fixed to the vehicle body 01. The spherical joint body 07 supporting the upper end portion 02 is fitted and connected so as to swing freely. When mounting the shock absorber D ', the upper end 02 of the shock absorber D'is inserted into the spherical joint body 07 from below to project above the joint body 07, and the nut N is attached to the projecting end. The upper end 02 of the shock absorber D'is fixed to the spherical joint body 07 by screwing.

(3) Problems to be Solved by the Invention In the above-described conventional structure, when the shock absorber D ′ is assembled, the shock absorber D ′ having the upper end 02 facing directly below the spherical joint 07 is There is a problem that the work efficiency is poor because it is necessary to move the ball joint body 07 upward for a relatively long distance until it protrudes upward. The same problem also occurs during the work of removing the shock absorber D '.

The present invention has been proposed in view of the above, and an object thereof is to provide a mounting structure for a shock absorber in a vehicle, which solves the above problems of the conventional structure and enables the shock absorber to be attached and removed efficiently. To do.

B. Configuration of the Invention (1) Means for Solving the Problems According to the present invention, in order to achieve the above object, a spherical joint body is swingably mounted in a case provided in a vehicle body. An upper end of a shock absorber supporting a swing arm for wheel suspension is inserted into the joint body from below, and a screw member is inserted from above the joint body. The body is clamped and screwed to each other in the spherical joint body.

(2) Operation According to the above configuration, the upper end of the shock absorber is inserted into the spherical joint body from below and the screw member is inserted from the upper side thereof, and the screw member is inserted into the upper end of the shock absorber in the spherical joint body. The assembly of the upper end of the shock absorber to the vehicle body is completed simply by screwing and connecting. At that time, since the upper end of the shock absorber can be retained in the spherical joint body, the vertical movement amount of the shock absorber at the time of attachment / detachment can be reduced accordingly.

(3) Embodiment Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In FIG. 1, a swing arm A for suspending and supporting a rear wheel W is provided at a rear end portion of a main frame 1 as a vehicle body of a motorcycle V. The front end of is pivoted up and down,
A lower end portion 3 of a shock absorber D is connected to an intermediate portion of the swing arm A via a link mechanism L, and an upper end portion 2 of the shock absorber D is attached to a main frame 1 via a ball joint J. .

Next, the mounting structure of the upper end portion 2 of the shock absorber D will be described with reference to FIG. 2. The support bracket 4 integrally provided on the rear upper surface of the main frame 1 is provided with a support hole 4a. The outer periphery of the cylindrical case 5 of the ball joint J is screwed into the hole 4a, and the screwing position is fixed by the lock nut 6. On the inner peripheral surface of the case 5, a large diameter hole portion 5a, a screw hole portion 5b, a small diameter hole portion 5c and an annular protrusion 5d are arranged in this order from above.
And a support 8 having a concave curved surface 8a for fittingly holding the spherical joint body 7 of the ball joint J around a fixed point O is fitted into the small-diameter hole portion 5c, This support body 8 has a male screw member 9 screwed into the screw hole portion 5b.
And the annular protrusion 5d.

A vertical through hole 7a is formed in the spherical joint body 7, and the upper end portion 2 of the shock absorber D is provided in the through hole 7a from below and the tightening bolt as a screw member from above. B is inserted respectively. The tightening bolt B is composed of a hexagonal head portion 10 and a shaft portion 11 connected to the head portion 10. The shaft portion 11 is fitted with a dust seal 12 on the outer periphery in order from above. The large-diameter shaft portion 11a, the intermediate shaft portion 11b inserted into the through hole 7a of the spherical joint body 7, and the small-diameter screw shaft portion 11c protruding downward from the end surface of the intermediate shaft portion 11b are provided. The small-diameter screw shaft portion 11c is screwed into the screw hole portion 13 provided in the upper surface of the upper end portion 2a of the shock absorber D. In the tightened state of the tightening bolt B, the end surface of the large-diameter shaft portion 11a of the bolt B and the outer periphery of the upper end portion 2 of the shock absorber D are screwed to each other so that the upper end portion 2 of the casing main body of the shock absorber D. The spherical joint body 7 is integrally clamped between the nut 15 and the nut 15.

In FIG. 2, reference numeral 16 is a lightening hole formed in the upper surface of the tightening bolt B so as to be recessed.

Next, the operation of the above embodiment will be described. When the shock absorber D is assembled to the main pipe 1, the cylindrical case 5 of the ball joint J is previously assembled into the support hole 4a of the support bracket 4 with the support body 8 and the spherical joint body 7 incorporated therein. Screw it on.

Next, the upper end portion 2 of the shock absorber D is inserted into the through hole 7a of the spherical joint body 7 from below and the tightening bolt B from above.
And the small diameter screw shaft portion 11c of the tightening bolt B is screwed and coupled to the screw hole portion 13 of the upper end portion 2 of the shock absorber D so as to connect with the end surface of the large diameter shaft portion 11a of the tightening bolt B. The nut 1
The spherical joint body 7 is sandwiched between 5 and.

Thus, the assembling work is completed, but at the time of such assembling work, the shock absorber D is compared from the position where the upper end portion 2 of the shock absorber D is directly under the spherical joint body 7 to the setting completion position in the spherical joint body 7. It is necessary to remove the shock absorber D because the vertical movement amount 1 of the shock absorber D at the time of attachment / detachment is smaller than that L of the conventional structure (FIG. 3). The working time can be shortened and the maintenance thereof can be facilitated.

C. Effect of the Invention As described above, according to the present invention, the spherical joint body is swingably mounted in the case provided in the vehicle body, and the spherical joint body is provided with a swing arm for wheel suspension from below. The upper end of the shock absorber supporting the shock absorber and a screw member are respectively inserted from above, and the upper end part and the screw member of the shock absorber sandwich the spherical joint body therebetween and mutually reciprocate in the spherical joint body. Since they are connected by screwing, the upper end of the shock absorber can be retained in the spherical joint body in the assembled state, and therefore, the vertical movement amount of the shock absorber at the time of attachment / detachment of the shock absorber can be made as in the conventional structure (FIG. 3). Compared with this, it can be reduced, and the work time required for its attachment and detachment can be shortened, which can contribute to improvement of workability of maintenance of the shock absorber.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a side view of a main part of a motorcycle, FIG. 2 is an enlarged sectional view taken along line II-II of FIG. 1, and FIG. FIG. 7 is an enlarged sectional view similar to FIG. 2, showing a conventional example. A ... Swing arm, B ... Tightening bolt as screw member, D ... Shock absorber, W ... Rear wheel as wheel, 1 ...
... Main frame as a car body, 2 ... upper end, 7 ...
Spherical joint body

Claims (1)

(57) [Scope of utility model registration request] 1. A spherical joint body (7) is swingably mounted in a case (5) provided in a vehicle body (1), and the spherical joint body (7) is provided with wheels (W) from below. ) The upper end (2) of the shock absorber (D) supporting the suspension swing arm (A) and the screw member (B) are inserted from above, respectively, and the upper end (2) of the shock absorber (D) is inserted. And a screw member (B) sandwiches the spherical joint body (7) therebetween, and is screwed and coupled to each other in the spherical joint body (7). Construction.