JPS6144886Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for attaching a shock absorber to a vehicle body in a suspension system for an automobile.

Generally, a shock absorber is incorporated into a suspension system interposed between a vehicle body and wheels in order to absorb vibrations that occur when a vehicle is running. The assembly of this shock absorber to the vehicle body was the first in the past.
This is done as shown in the figure.

That is, the stud 2 is fixed to the upper end of the shock absorber 1, the stud 2 is inserted into the mounting hole 4 provided at a predetermined position in the vehicle body 3, and the nuts 5, 5 are attached to the portion of the tip of the stud 2 that protrudes toward the vehicle interior side. The shock absorber 1 is attached to the vehicle body 3 by screwing them together. At this time, insulators 6, 6 and washers 7, 7 are inserted between the vehicle body 3 and the shock absorber 1, as shown in the figure. The above-mentioned mounting method is described in, for example, Japanese Utility Model Application No. 176810/1983.

By the way, when attaching the shock absorber 1 to a vehicle body using the above method, if the shock absorber 1 is attached to the rear side of a wagon type vehicle, for example, the shock absorber 1 is attached to a closed section formed by the rear floor and the side frame. It is installed within a structured space.

That is, as shown in FIG. 2, a bracket 11 is welded and fixed in advance in a space 10 having a closed cross-sectional structure formed by a rear floor 8 and a side frame 9 welded to the bottom surface of the rear floor 8. The stud 2 fixed to the upper end of the shock absorber 1 is inserted into the mounting hole 12 provided in the bracket 11, and the bracket 11 and the shock absorber 1 are connected together.
Insulators 6, 6 and washers 7,
The shock absorber 1 was attached to the vehicle body by screwing nuts 5, 5 onto the upper end of the stud 2 with the bolt 7 interposed therebetween.

In addition, the shock absorber 1 of the side frame 9
An opening 9a is provided at the position where the nuts 5, 5 are inserted, and an opening 9a is provided at the location above the shock absorber 1 of the rear floor 8, which is used when attaching and removing the nuts 5, 5 to the stud 2.
A is provided.

However, when the shock absorber 1 is fixed in the space 10 formed by the rear floor 8 and the side frame 9 using the method described above, when the shock absorber 1 is attached to and removed from the bracket 11, the upper end of the shock absorber 1 becomes stuck. If the nuts 5, 5 to be screwed into the stud 2 are accidentally dropped into the space 10, the space 10
has a closed cross-section structure, so the nuts 5, 5
There was a problem where it became impossible to take out the space 10. And in this space 10, Natsu 5,
If the nuts 5 are left behind, the nuts 5, 5 will move between the rear floor 8 and the side frame 9 when the vehicle is running, resulting in the problem of generating abnormal noise.

In view of the above-mentioned conventional drawbacks, the present invention provides a shock absorber mounting structure that prevents the shock absorber mounting nut from falling into the space formed between the rear floor and the side frame. The details of the present invention will be described in detail with reference to the embodiments shown in the drawings.

FIG. 3 is a cross-sectional view showing the mounting structure according to the present invention. In the figure, 20 is a rear floor, 21 is a side frame welded to the lower surface of the rear floor 20, and 20a is an opening formed in the rear floor 20 to be used when installing the shock absorber. 21a is an opening formed in the side frame through which the shock absorber is inserted. A bracket 22 is welded and fixed in a space A having a closed cross-sectional structure formed between the rear floor 20 and the side frame 21, and the bracket 22 has a mounting hole 22a through which a stud 24, which will be described later, is inserted. It has been done. 23 is a shock absorber whose upper portion is located in the space A;
24 is a stud fixed to the upper end of the shock absorber 23 and passes through a mounting hole 22a provided in the bracket 22; 25a and 25b are studs fixed to the upper end of the shock absorber 23;
Insulators 26a, 2 arranged on the upper and lower surfaces of
6b is a washer that contacts the insulators 25a and 25b, and 27 and 27 are nuts that are screwed into the portion of the stud 24 that protrudes from the insulator 25a, and each of the above members has the same structure as the conventional one. Reference numeral 28 denotes a cover member for preventing nuts from falling off, which is interposed between the upper surface of the bracket 22 and the opening 20a provided in the rear floor 20, and the cover member 28 has a cylindrical shape as shown in FIG.
A flange portion 29 is formed on its upper edge;
Further, a convex portion 30 is formed below the flange portion 29 and protrudes toward the outer periphery. By sandwiching the periphery of the opening 20a provided in the rear floor 20 between the flange portion 29 and the convex portion 30,
Attach the cover member 28 to the rear floor 20 and bracket 2.
It is fixed between 2. Also, the cover member 28
A lid body 32 is rotatably attached to the upper end via an integral hinge 31, and the cover member 28
The upper opening is closed. 33 is a claw member provided on the inner surface of the lid 32, and when the upper opening of the cover member 28 is closed by the lid 32, the claw member 33 closes the recess 34 provided on the inner wall surface of the cover member 28. This prevents the lid 32 from opening naturally.

In this way, the cover member 28 is interposed between the bracket 22 disposed in the space A formed by the rear floor 20 and the side frame 21 and the opening 20a provided in the rear floor 20, and the shock absorber 23 is Stud 2 fixed on the top end
If the nuts 27, 27 that are screwed into the shock absorber 23 are surrounded by the cover member 28, when the shock absorber 23 is attached to and removed from the bracket 22,
Even if the nuts 27, 27 to be screwed onto the studs 24 are accidentally dropped, the nuts 27, 27 will simply fall into the space B formed by the cover member 28 and the upper surface of the bracket 22, and the nuts 27, 27 will fall into the rear floor 20. The nuts 27, 27 can be easily taken out because they do not fall into the space A having a closed cross-sectional structure formed by the side frame 21 and the side frame 21.

In addition, a lid 32 is attached to the cover member 28, and the upper end opening of the cover member 28 can be closed by the lid 32 except when the shock absorber 23 is attached or removed. etc. can be prevented from accumulating.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view showing a conventional example when a shock absorber is installed on a vehicle body, and Figure 2 is a cross-sectional view showing a conventional example when a shock absorber is installed in the space formed by the rear floor and side frame. 3 is a sectional view showing the mounting structure according to the present invention, and FIG. 4 is a perspective view of the cover member according to the present invention. 20... Rear floor, 20a... Rear floor opening, 21... Side frame, 22... Bracket, 23... Shock absorber, 24...
Stud, 27... Nut, 28... Cover member, 32... Lid, A... Space formed between the rear floor and the side frame.

Claims (1)

[Scope of utility model registration request] A bracket is fixed in the space formed between the floor panel of the automobile and the side frame or cross member welded to the bottom surface of the floor panel, and a stud fixed to the upper end of the shock absorber is inserted into the mounting hole provided in the bracket. In the case where the shock absorber is attached to the vehicle body by inserting a bolt through the stud and screwing a nut into the stud, between the upper surface of the bracket and the opening provided in the floor panel at a location above the shock absorber, A mounting structure for a shock absorber, characterized in that a cylindrical cover member is interposed, and the nut is surrounded by the cover member.