JPH0623502Y2 - Cushion mounting structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cushion mounting structure, and in particular, in a portion where an opening / closing member such as a trunk lid is openably / closably supported via a hinge member in an automobile body, the opening / closing thereof is performed. The present invention relates to a structure in which a cushion made of an elastic material is provided as a damper when the body is fully opened.

2. Description of the Related Art A cushion made of an elastic material is provided as a damper at the time of maximum opening of an opening / closing body at a portion where an opening / closing body such as a trunk lid is openably / closably supported by a hinge member in a vehicle body. When installing on the elastic cushion like this,
Conventionally, a hole is formed at a hinge mounting position of a square pipe or a cushion mounting position of a vehicle body, and a headed projection extending below the cushion is pushed into the hole to mount the cushion. This mounting structure is simple and widely used at present.

Problems to be Solved by the Invention However, in the conventional mounting structure, a hole is formed in a square pipe serving as a trunk hinge or a vehicle body in the vicinity thereof is formed, so that rigidity or strength of the hinge or the vehicle body is deteriorated. There are drawbacks, and rust is generated by drilling holes. Further, when drilling holes, burrs are formed on the inside of the pipe or the vehicle body, and it is difficult to remove them. Then, since the cushion is fitted by pushing it into the hole, the holding force of the cushion is low, and in order to increase this holding force, the outer diameter of the head of the protrusion of the cushion is increased and soap water is applied and pushed in. However, the work of applying soapy water was required, and the workability was deteriorated due to slipping of soapy water and the like.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a cushion mounting structure that eliminates the need for drilling a pipe or a vehicle body, maintains a high holding force of the cushion, and improves the cushion mounting workability.

Means for Solving the Problems To achieve the above object, according to the present invention, a rod-shaped stud is fixed to one of the hinge member and the vehicle body by welding, and the stud is smaller than the outer diameter of the stud. A cylindrical cushion having an inner diameter hole is attached, and the cushion hole is formed longer than the height of the stud, and the cushion surface facing the vehicle body or the hinge member is fully seated. A cushion mounting structure is provided in which an end surface of the cushion is provided with a recess having a diameter larger than the outer diameter of the stud.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a cushion 1 made of an elastic material, a square pipe 2 such as a trunk hinge, and a rod-shaped stud 3 fixed to a predetermined position of the pipe 2 by welding or the like. 2 (a) to 2 (c) show the external appearance of the cushion 1, and FIG. 3 shows the attached state of the cushion 1.

The stud 3 is a rod-shaped body and is fixed to the pipe 2 by welding. This stud welding is well known and will not be described in detail. Note that the stud 3 may use other fixing means as long as it is fixed to the pipe 2 without being pierced. Other means include brazing and fixing with an adhesive.

On the outer peripheral surface of the stud 3, a portion protruding outward in the radial direction is formed. The projecting portion may be arbitrary as long as it projects outward in the radial direction, and the projecting portion may be continuous in the outer circumferential direction or intermittently formed.
Among them, as shown in the figure, the stud 3 having the threads 4 continuously formed on the outer surface thereof is preferable. This is because when the cushion 1 attached by pushing is removed, it can be removed only by rotating the cushion. The peaks 4 do not have to be continuous as described above.

The cushion 1 is made of an elastic material such as rubber and may have an arbitrary shape for cushioning a mating member such as a trunk lid. In this embodiment, as shown in FIGS. 2 (a) to 2 (c), It is formed in a general cylindrical leg shape. As is apparent from FIG. 1, a fitting hole 6 for the stud 2 is formed inside the cushion 1. The height of the fitting hole 6 is slightly higher than the height of the stud 2, so that the bottom surface of the cushion 1 can be entirely seated on the upper surface of the pipe 2. A recess 7 having a diameter slightly larger than the outer diameter of the stud 1 is formed on the upper surface of the cushion 1. As a result, the load received on the upper surface of the cushion 1 is
Is transmitted to the pipe through the cushion bottom surface that is in contact with the upper surface of the stud, and is hardly applied to the stud 3, so damage to the stud can be suppressed.

A female screw is formed in the fitting hole 6 of the cushion 1 so as to correspond to the screw of the stud 3. Fitting hole 6 of cushion 1
The inner diameter of the internal thread, that is, the crest diameter of the female thread is formed smaller than the outer diameter of the thread 4 of the stud 3, whereby the crest of the female thread of the fitting hole 6 enters into the trough of the thread 4 of the stud 3 and the cushion 1 is inserted into the stud 3. Mounted on.

In order to strongly attach the cushion 1 to the stud 3 and allow it to be easily removed, the pitch and the lead angle of the female screw of the fitting hole of the cushion 1 substantially match the pitch and the lead angle of the screw 4 of the stud 3. Further, it is preferable that the root diameter of the internal thread is set to be equal to or smaller than the root diameter of the screw 4, and the root diameter of the internal thread is set to be equal to or smaller than the root diameter of the screw 4. However, without being limited to the illustrated example, the fitting hole 6 is formed with an inner diameter portion such as a trough of a female screw smaller than the outer diameter of the protruding portion such as the thread of the stud 3 so that the cushion 1 is pushed into the stud 3 or screwed in. As long as it is attached by the above, it is possible to form any other shape without forming a female screw inside the fitting hole 6. For example, projections protruding inward in the radial direction may be provided in places, annular grooves may be formed in a plurality of steps, and further, simple holes may be formed. In any case, the fitting hole 6 may be formed with an inner diameter smaller than the outer diameter of the thread of the stud 3 or the like, whereby the cushion is fitted and attached to the stud.

As shown in the figure, when the threaded stud 3 is fixed to the pipe 2 by welding, the cushion 1 is fitted so that the cushion 1 is easily attached to the stud 3 and the bottom surface of the cushion 1 is in contact with the upper surface of the pipe 2. The inlet portion of the dowel 6 is preferably formed to have a large diameter. More specifically, as shown in the drawing, the most inlet portion of the fitting hole is formed large so that the fitting hole of the cushion can easily pick up the tip portion of the stud and receive the large diameter portion of the welded portion 8 of the stud 3. ,
Preferably, it is partially tapered outward. Subsequent to this large-diameter portion, it is formed to be slightly large enough to receive the base portion 9 of the stud.

FIG. 3 shows a cushion 1 through a stud 3 on a pipe 2.
The state where the is attached is shown. The cushion 1 can be attached simply by pushing it into the stud 2. When the cushion 2 is attached, when the trunk lid is fully opened, the trunk lid can be opened safely without being damaged. Then, the cushion 1 can be removed only by rotating the cushion.

In the above embodiments, the hinge member of the trunk lid is described as a square pipe, but the hinge member may be a round pipe, and need not be a pipe as long as rod-shaped studs can be fixed. The cushion may be attached not at the hinge member itself, but at the vehicle body near the hinge member. Further, the cushion mounting structure according to the present invention may be an opening / closing body such as a trunk lid, and can be arbitrarily applied to the mounting of the cushion when the cushion is used as a damper of the opening / closing body.

Effect of the Invention According to the present invention, since the cushion can be attached to the hinge member or the vehicle body without making holes, the rigidity or strength of the hinge member or the vehicle body does not decrease, and the problem of rusting does not occur. Further, since the cushion is easily attached to the hinge member or the like, workability is improved, and since the stud is interposed, the cushion attaching force is increased and the cushion holding force is maintained high. Furthermore,
Since the cushion is fully seated on the vehicle body or hinge member, the cushion is attached in a stable state,
Even when a heavy member such as a boot lid is impacted when it is fully opened, it can receive the impact force sufficiently, and it can withstand the impact force and reliably perform the function as a damper. Since the end face of the has a recess with a diameter larger than the outer diameter of the stud, the load of the load on the stud is reduced, the fatigue of the stud is suppressed, and the supporting force of the cushion is maintained for a long period of time. While the cushion is supported by the studs, it can exert its function for a long time while maintaining elasticity.

[Brief description of drawings]

FIG. 1 is a sectional view showing a cushion and a pipe serving as a hinge member according to the present invention, and a stud is shown in a front view. FIGS. 2 (a) to 2 (c) are respectively the cushion of FIG. A plan view, a front view, a bottom view, and FIG. 3 are similar to FIG. 1 with a cushion attached. Explanation of symbols 1 ... Cushion, 2 ... Pipe, 3 ... Stud, 4 ... Screw, 6 ... Fitting hole, 7 ... Recess

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukihiko Ono 162 Yanose-cho, Utsunomiya City, Tochigi Prefecture (72) Inventor Motomi Iwase 13 Higashimachi Yashiki, Noda, Shinshiro City, Aichi Prefecture (56) References (JP, U) Showa 48-39762 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A cushion mounting structure in which a cushion made of an elastic material is provided as a damper at the maximum opening of the opening / closing body at a portion of the vehicle body for supporting the opening / closing body such as a trunk lid so as to be openable / closable via a hinge member. A rod-shaped stud is fixed to one of the hinge member or the vehicle body by welding, and a cylindrical cushion having an inner diameter smaller than the outer diameter of the stud is attached to the stud. A cushion end face which is formed to be longer than the height of the stud and faces the vehicle body or the hinge member is fully seated, and the other end face of the tubular cushion is provided with a recess having a diameter larger than the outer diameter of the stud. Cushion mounting structure.