JPH11123918A - Strut fitting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the workability at the time when a strut-type suspension of an automobile is assembled. SOLUTION: In the structure that a cap 5 is put on the upper part 4 of a strut inserted into a hole 3a bored in a strut reinforcement 3, a male thread part 8a is formed on the end part of a strut rod 8 projecting from the strut upper part 4, and a cylindrical part 5c is provided on the ceiling part 5a inside the cap 5, and also a female thread part 5d is formed on the inner circumferential surface of the cylindrical part 5c. Projected parts 5e locked to the opening periphery 3b of an opening 3a are provided on the outer circumference of the cap 5 in three directions. When the strut reinforcement 3 is fitted, the strut upper part 4 and the cap 5 are integrated by means of thread parts, and the projected part 5e is locked to the opening periphery 3b for temporarily stopping. Thereafter, regular tightening is carried out, so that the working can be facilitated, and the falling-off of the cap 5 at the time of assembling can be prevented, and also the burden of workers can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION When a strut type suspension is used for a front suspension of an automobile,
Usually, the upper part of the strut protrudes from the floor surface and the upper part is covered with a cap to improve the appearance and prevent rainwater from entering. The present invention relates to a strut mounting structure provided with such a cap.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 4 and 5, a strut type suspension mounted on a truck type automobile 1 shown in FIG. 4 is a strut on an upper part of a wheel house 2 located in an engine room. The strut upper part 4 is fixed to the reinforce 3,
The portion protruding from the strut reinforcement 3 is covered with a cap 5. The cap 5 is made of synthetic resin, has a ceiling 5a, has a substantially cylindrical shape, and has a fold 5b formed on the outer periphery of the lower end (see FIG. 6).

As shown in FIG. 7, in a strut type suspension, a spring upper seat 6 and a rebound stopper 7 are inserted through strut rods 8 and fastened together by fixing nuts 9, whereby a strut assembly 10 and a spring 11 are connected. It is assembled together (2-22
No. 11). The rebound stopper 7 has a bottomed cylindrical shape, and has a flange 7a at the upper end. Then, a strut rod 8 is provided on the bottom surface of the rebound stopper 7.
Penetrates and is integrally fastened by a fixing nut 9 inside the cylindrical shape. A bush is provided outside the rebound stopper 7.
A mounting bracket 13 is fixed to the mounting bracket 13 through the strut reinforce 3, and the strut upper portion 4 is inserted into the hole 3a of the strut reinforcement 3, and the stud bolt 14 and the mounting nut provided on the mounting bracket 13 are provided.
15 to be concluded.

[0004] Further, a hole 3a of the strut reinforcement 3 is provided.
The opening edge 3b is bent upward, and the mounting bracket 13 is formed with a cylindrical portion 13a smaller than the hole diameter.
Since it is inserted through 3a, a gap is formed between the opening edge 3b and the cylindrical portion 13a, and the fold 5b of the cap 5 placed on the rebound stopper 7 is pressed into the gap to fix the cap 5. Thereby, the cylindrical portion 7b of the rebound stopper 7
Rainwater, etc. did not accumulate.

[0005]

When the strut assembly 10 is mounted on the vehicle body, the strut assembly 10 is inserted into the hole 3a of the strut reinforcement 3 from below, and is temporarily fastened with stud bolts 14 and mounting nuts 15 and fastened. Go. However, the strut assembly 10 is very heavy, and the operator tightens the upper two places with the mounting nuts 15 while supporting the strut assembly 10 by hand. Tightening of the stud 14 becomes difficult, and the load on the stud bolt 14 after the tightening (the load outside the axial direction) also increases. In addition, the lower end of the cap 5 may be twisted off the upper strut 4. Therefore, it is very burdensome for the operator to assemble the vehicle body without giving such a situation.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a strut mounting structure for facilitating temporary fastening and fastening of a strut assembly when a strut type suspension is assembled.

[0007]

In order to achieve the above object, the present invention is directed to a first aspect of the present invention, in which a substantially cylindrical cap having a ceiling portion and a strut upper portion inserted into a hole formed in a strut reinforcement are provided. Are provided so as to be integrally mounted, and at least one projection is provided on the outer periphery of the cap so as to be engaged with the opening edge of the hole.

According to a second aspect of the present invention, in the first aspect of the invention, a cylindrical portion is provided on a ceiling portion inside the cap,
A female screw portion is formed on the inner peripheral surface of the cylindrical portion, a strut rod protruding above the strut is provided so as to be insertable into the cylindrical portion, and a male screw portion is formed at the tip of the strut rod. Features.

In the above structure, the strut and the cap can be adjusted in the axial direction of the strut so that the projection is hooked on the upper end of the opening edge when the upper part of the strut is inserted into the hole. At the time of insertion, the protrusion is retracted toward the center of the shaft. Structurally, an avoiding groove of a convex portion is provided. Alternatively, the cap is formed of an elastic synthetic resin. Further, the cylindrical portion of the cap and the strut rod may be fitted in two or three stages in the axial direction, and in the final step, the cap is pressed and adhered.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, a cap 5 is put on a strut upper part 4 in a vehicle or an engine room, and is fastened to the strut reinforcement 3 via a mounting bracket 13. The same members as those in the related art are denoted by the same reference numerals.

In the strut type suspension, the spring upper seat 6 and the rebound stopper 7 are inserted through strut rods 8 and fastened together by fixing nuts 9, whereby the strut assembly 10 and the spring 11 are integrally assembled. The strut rod 8 extends inside the cylindrical portion 7b of the rebound stopper 7, and penetrates into a cylindrical portion 5c which is suspended downward from a ceiling 5a inside the cap 5, and has a tip portion of the strut rod 8. Is formed with a male thread 8a, and a female thread 5d is formed inside the cylindrical portion 5c of the cap 5.

As shown in FIGS. 2 and 3, the cap 5 is made of a synthetic resin. The cap 5 is provided with protrusions 5e on three sides on the outer periphery, and folds 5b on the outer periphery of the lower end.
A reinforcing band 5f is formed in the middle of the inside of the, and a cylindrical portion 5c is hung from the ceiling 5a. In addition, a female screw portion 5d is formed in the inner hole of the cylindrical portion 5c.

Accordingly, the strut rod 8 is longer than in the conventional structure, and a cylindrical portion 5c is provided inside the corresponding cap 5, and is previously combined with a screw when mounted. Next, the cap 5 is inserted into the hole 3a of the strut reinforce 3 together with the cap 5, the protrusion 5e is positioned on the opposite side, and the protrusion 5e is engaged with the opening edge 3b of the hole 3a. Thereby, the strut assembly 10 is temporarily fixed to the strut reinforcement 3. At this time, the positional relationship between the strut rod 8 and the cap 5 is adjusted so that the stud bolt 14 provided on the mounting bracket 13 projects from the mounting hole 3c of the strut reinforcement 3. Then, the strut reinforcement 3 is tightened with a nut, and the strut is mounted.

As described above, when assembling the strut assembly 10 to the vehicle body, the cap 5 is pre-assembled to the upper strut 4 with screws, so that the cap 5 does not come off and the work is facilitated. 5e can be locked and temporarily fastened, and then the strut assembly 10 can be fully tightened with the mounting nut 15, so that the worker can easily perform the assembling work.

[0015]

As described above, according to the present invention, the strut assembly and the cap are integrated with the screw and the projection for temporary fastening is provided on the outer periphery of the cap, thereby positioning the strut assembly (temporarily fastening). ) And bolting can be performed separately. As a result, the burden on the worker's body is reduced, and the cap is prevented from dropping off during the assembling, so that the working time is shortened and the assembling workability is improved. Further, since the strut assembly and the cap do not have to be newly combined with another component, the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a strut mounting structure according to an embodiment of the present invention.

FIG. 2 is a sectional view of the cap shown in FIG. 1;

FIG. 3 is a perspective view of the cap shown in FIG. 1;

FIG. 4 is a perspective view showing strut positions of a conventional automobile.

FIG. 5 is a perspective view showing a mounting portion at a strut position shown in FIG. 4;

FIG. 6 is a perspective view of a conventional cap.

FIG. 7 is a sectional view showing a conventional strut mounting structure.

[Explanation of symbols]

 3 Strut reinforce 3a Hole 3b Opening edge 4 Strut upper part 5 Cap 5a Ceiling 5c Tubular part 5d Female thread 5e Convex 8 Strut rod 8a Male thread

Claims (2)

[Claims] 1. A substantially cylindrical cap having a ceiling and an upper portion of a strut inserted into a hole formed in a strut reinforce are provided so as to be integrally mounted, and are engaged with an opening edge of the hole on an outer periphery of the cap. A strut mounting structure, wherein at least one convex portion is provided. 2. A cylindrical portion is provided on a ceiling portion inside a cap, and a female screw portion is formed on an inner peripheral surface of the cylindrical portion. A strut rod projecting above a strut can be inserted into the cylindrical portion. 2. A strut rod having a male thread portion formed at the tip of the strut rod.
Strut mounting structure described.