JPH10236125A - Strut support cap installation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fall-out of a cap, improve sealability and water invasion proofness, eliminate need of a seal member as a separate part, and reduced cost. SOLUTION: A strut support 20 is disposed on an aperture part 2 on the side of a vehicle body 1, and a circular gap 25 having a wedge-shaped cross sectional surface is formed between an outer circumferential surface of the strut support 20 and an inner circumferetial surface of a conical cylinder part 15 at the aperture part 2. On a cap 26, an engagement part 27 to be disposed in the circular gap 25 is provided, and the engagement part 27 having a circular seal protrusion formed in a circumferetial direction is held between the outer circumferential surface of the strut support 20 and an inner circumferential surface of the aperture part 2 on the vehicle body 1 side for installing the cap 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strut support cap mounting structure in which a strut support is provided at an opening on a vehicle body side, and a cap to be mounted over an upper portion of the strut support is to be mounted. .

[0002]

2. Description of the Related Art FIG. 5 is a side view showing an outline of a conventional strut support cap mounting structure, and FIG. 6 is an enlarged sectional view showing a main part thereof. In this mounting structure, the upper end of the strut 3 and the rebound stopper 4 attached thereto face the opening 2 on the vehicle body 1 side, and the strut support 5 is disposed in the opening 2. A mount bush 6 is arranged between the circumference and the outer circumference of the rebound stopper 4. The cap 7 covers them.

The cap 7 has an upper end plate 8, a side portion 9, and a bellows portion 10 integrally, and a convex portion 11 on the inner surface side of the upper end plate 8.
Is projected downward, and the upper end plate 8 is brought into contact with the upper end flange 4 a of the rebound stopper 4, and the vehicle body 1
Side opening 2, the upper end of the strut 3, the upper end of the rebound stopper 4 and the strut support 5, etc., the end of the bellows portion 10 is applied to the outer surface of the vehicle body 1, and the convex portion 11 is provided on the inner periphery of the rebound stopper 4. It is fitted and fitted. The strut support 5 is fixed to the body 1 by a bolt 12 and a nut 13 screwed thereto.

[0004]

However, in the above-mentioned conventional mounting structure, the rebound stopper 4 is required to move the rebound stopper 4 when the vehicle is running.
Since the suspension moves up and down, a gap is easily formed between the cap 7 and the body 1, and the cap 7 may fall off, resulting in low sealing performance. In order to enhance the sealing performance and the water-proofing property, it is necessary to dispose a sealing O-ring 14 or the like as a separate component between the body 1 and the strut support 5, and there is a problem that it is difficult to reduce the cost. Was.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to prevent the cap from falling off and to eliminate the need for a separate O-ring or the like as a separate part. Another object of the present invention is to provide a strut support cap mounting structure which is excellent in sealing performance and waterproofness and can easily reduce the cost.

[0006]

In order to achieve the above object, the present invention provides a strut support in which a strut support is disposed near an opening on a vehicle body side, and a strut support for mounting a cap over the strut support is provided. A cap mounting structure, wherein the cap is provided with an engaging portion disposed between an outer peripheral surface of the strut support and an inner peripheral surface of an opening on the vehicle body side, and the engaging portion is provided with the strut support. The cap is mounted between the outer peripheral surface of the vehicle and the inner peripheral surface of the opening on the vehicle body side.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A strut support cap mounting structure according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a main part side of a strut support cap mounting structure according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing an enlarged portion of the cap of FIG. 1, and FIG. FIG. 3 is a partial cross-sectional view showing a state in which the cover is folded. In the cap mounting structure according to this embodiment, the opening 2 on the vehicle body 1 side, the rebound stopper 4 mounted on the upper end of the strut 3, the mount bush 6, and the like are all substantially the same as the conventional one shown in FIG. Are denoted by the same reference numerals, and redundant description is omitted.

In this cap mounting structure, a strut support 20 is disposed near the opening 2 on the vehicle body 1 side, and an outer peripheral surface of the strut support 20 and the opening 2 are formed.
A wedge-shaped annular gap 25 (see FIG. 3) is formed between the inner gap and the inner peripheral surface of the cap 26, and an engaging portion 27 disposed in the annular gap 25 is provided on the cap 26 and formed along the circumferential direction. The cap 26 is attached by sandwiching the engaging portion 27 having the annular seal ridge 27a between the outer peripheral surface of the strut support 20 and the inner peripheral surface of the opening 2 on the vehicle body 1 side.

The strut support 20 includes a lower plate portion 21 disposed below the body 1, a cylindrical portion 22 standing substantially perpendicularly to the lower plate portion 21 and an upper end thereof. And the inner flange 23 are integrally formed. The strut support 20 has the cylindrical portion 22 arranged concentrically with the opening 2 of the body 1, and has a substantially uniform cross section between the cylindrical portion 22 and the conical tube portion 15 of the opening 2 of the body 1. By forming a thin wedge-shaped annular gap 25, the bolt 1
It is fixed to the body 1 with 2 and a nut 13 screwed thereto.

The cap 26 is made of rubber or synthetic resin, and has an engaging portion 27,
It has an upper end plate part 29 integrally. As shown in FIG. 2, the engagement portion 27 has a plurality of annular seal ridges 27 a formed along the outer circumferential direction and two annular grooves 27 b formed between the plurality of seal ridges 27 a. , Seal ridge 2
7A and the cross-sectional shape including the annular groove 27b conforms to the cross-sectional shape of the annular gap 25, and has a maximum thickness portion including the seal ridge 27a at a position near the lower end of the annular gap 25. As shown in the figure, it is compressed and slightly elastically deformed in the mounted state

The cap 26 has an annular positioning ridge 28a along the circumferential direction on the inner surface side of the conical cylindrical portion 28, and the positioning ridge 28a is attached to the strut support 20.
A space 32 is formed below the upper end plate portion 29 so that the upper end plate portion 29 is positioned so as not to contact the rebound stopper 4, and the engaging portion 27 is formed in the cylindrical portion of the strut support 20. 22 is fixed and attached in a state of being sandwiched between the outer peripheral surface of the opening 22 and the inner peripheral surface of the conical cylindrical portion 15 of the opening 2. An annular gap 33 is provided between the positioning ridge 28a and the inner flange 23.

FIG. 4 is a partial sectional view for explaining an assembling sequence in the strut support cap mounting structure according to the embodiment of the present invention. First, a mounting bush 6 is fitted around the outer periphery of the rebound stopper 4, and a strut support 20 is fitted around the outer periphery of the mounting bush 6, and the assembled assembly 35 is screwed into the male screw portion 3a at the upper end of the strut 3 and this. The nut 17 is fastened and attached to the upper end of the strut 3.

Next, a cap 26 is fitted on the outer peripheral surface of the cylindrical portion 22 of the strut support 20 attached to the strut 3, and these are concentrically arranged close to the opening 2 from below, and the cylindrical shape of the strut support 20 is adjusted. The engaging portion 27 of the cap 26 is sandwiched between the outer peripheral surface of the portion 22 and the inner peripheral surface of the conical tube portion 15 of the opening 2. Then, the through hole 20a of the strut support 20 and the body 1
The bolt 12 is passed through the through hole 1a, and the nut 13 is screwed and fastened to the bolt 12 to fix and attach the cap 26.

According to the above embodiment of the present invention, the space 32 is provided below the upper end plate 29, and the annular gap 33 is secured between the positioning ridge 28a and the upper end flange 4a.
Since the cap 26 does not directly contact the rebound stopper 4, the cap 26 is not affected by the movement of the suspension when the vehicle is running, and has a cross section between the conical cylindrical portion 15 of the opening 2 and the cylindrical portion 22 of the strut support 20. A wedge-shaped annular gap 25 is formed, and an engaging portion 27 having a wedge-shaped cross section is arranged in the annular gap 25, and is elastically deformed by being sandwiched between the conical cylindrical portion 15 and the cylindrical portion 22 having a narrow upper portion. Therefore, there is an advantage that the attachment of the cap 26 is strong and hard to be detached, and the sealing property and the water proofness are high.

[0015] The present invention is not limited to the above embodiment, and various modifications are possible. For example, the sealing ridge 27a on the outer surface side of the engaging portion 27 of the cap 26 may be singular, and one or three or more annular grooves 27b may be formed.

[0016]

According to the present invention, the cap has an engaging portion disposed between the outer peripheral surface of the strut support and the inner peripheral surface of the opening on the vehicle body side, and the engaging portion is provided on the outer peripheral surface of the strut support. By attaching the cap between the inner peripheral surface of the vehicle body and the opening on the vehicle body side, no O-ring or the like is required, the assembly is simple, the number of steps for that is reduced, and the cost can be reduced easily. In addition, the cap is excellent in sealing performance and waterproofness, and has an effect that the cap after being attached is hard to be removed. In addition, since the engagement portion of the cap has an annular seal ridge formed along the circumferential direction, there is an advantage that more excellent sealing performance and water immersion resistance can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part side surface of a strut support cap mounting structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a portion of the cap according to the embodiment of the present invention.

FIG. 3 is a partial cross-sectional view showing a state where the cap according to the embodiment of the present invention is attached.

FIG. 4 is a cross-sectional view for explaining an assembling order in the strut support cap mounting structure according to the embodiment of the present invention.

FIG. 5 is a side view showing an outline of a conventional strut support cap mounting structure.

FIG. 6 is an enlarged sectional view showing a main part of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle body 2 Opening part 3 Strut 4 Rebound stopper 15 Conical cylinder part 20 Strut support 22 Cylindrical part 23 Inner flange 25 Annular gap 26 Cap 27 Engagement part 27a Seal ridge 27b Annular groove 28 Conical cylinder 28a Locating ridge 32 Space 33 annular gap 35 assembly

Claims (2)

[Claims] 1. A strut support cap mounting structure for disposing a strut support near an opening on a vehicle body side for mounting a cap over an upper portion of the strut support. An engaging portion is provided between an outer peripheral surface and an inner peripheral surface of the opening on the vehicle body side, and the engaging portion is connected to an outer peripheral surface of the strut support and an inner peripheral surface of the opening on the vehicle body side. A strut support cap mounting structure, characterized in that the cap is mounted by being sandwiched between the strut support caps. 2. The strut support cap mounting structure according to claim 1, wherein the engaging portion of the cap has an annular seal ridge formed along a circumferential direction.