JP2003214469A - Buffer member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a buffer member to buffer certainly the shock generated with shutting of an opening/closing member and made free of a risk of sticking by forming a recess at the abutting surface of an abutting part and furnishing a body with a passage leading to the recess. <P>SOLUTION: The buffer member is composed of a member to be mounted to approach when the opening/closing member is to be closed, the body to be attached to either side of the opening/closing member, and the abutting part to abut to the opening/closing member and the other side of a member to be opened and closed, wherein the recess is formed at the abutting surface of the abutting part, and the body is furnished with the passage leading to the recess. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is interposed between an opening / closing member such as an automobile door or bonnet and an opened / closed member such as a vehicle body to absorb vibrations and shocks when the opening / closing member collides with the opened / closed member. The present invention relates to a shock absorber.

[0002]

2. Description of the Related Art As a conventional technique, it is installed in a trunk lid of an automobile to prevent the trunk lid from coming into direct contact with a vehicle body and absorb and absorb vibrations generated when the trunk lid is closed. Such a conventional cushioning member simply uses rubber for the cushioning role, and a widely known rubber structure as a typical example is, for example, Japanese Utility Model Publication No. 6
It is disclosed in Japanese Patent Publication No. 1-106639.

FIG. 8 and FIG. 9 show a concrete representative use example of a conventional cushioning member. T is an upper surface portion of a cushioning member that comes into contact with an opening / closing member such as a trunk lid of an automobile, O is an opening as an open hole for attaching the cushioning member to a vehicle body, and M is a cushioning member such as a vehicle body. It is a mounting member for mounting in the opening.
Further, there is also one in which a concave portion is provided in a portion which comes into contact with the vehicle body to improve the cushioning efficiency (Shokai 60-175924). By providing a recess in this conventional example, when the trunk lid is closed, the vehicle body hits the upper surface of the rubber main body,
The rubber main body flexes slightly to absorb the shock of closing the trunk lid.

[0004]

However, only forming the concave portion on the upper surface causes a trouble. Since the air in the concave portion is sealed between the body surface and the vehicle body with the opening / closing member closed, the upper surface of the rubber body may stick to the vehicle body, and the opening / closing member such as the trunk lid may not be opened smoothly. In addition, water and dust are likely to collect in the recess, which may impair not only the appearance but also the cushioning function of the cushioning member.

The present invention has been submitted to solve the problems of the prior art, and prevents the air in the recess from being sealed and surely cushions the shock caused by closing the opening / closing member. It is an object of the present invention to provide an improved cushioning member so that compatibility with the above can be realized relatively easily. Further, since the main body of the cushioning member and the engaging portion attached to the opening / closing member are integrated, the manufacturing cost can be minimized and the workability can be improved.

[0006]

In order to achieve such an object, according to the present invention, a member to be opened / closed which is close when closing the opening / closing member and a main body attached to one of the opening / closing member, and an opening / closing member In a buffer member having an abutting portion that abuts the other of the member and the opened / closed member, a concave portion is formed in the abutting surface of the abutting portion, and a passage communicating with the concave portion is provided in the main body portion. I decided to do it.

According to this structure, when the opening / closing member is closed, the cushioning member cushions the shock caused by closing the opening / closing member. In addition, when the opening / closing member is opened, the air in the recess provided in the contact portion escapes in the passage leading to the recess, and the air in the recess seals the problem of sticking between the opening / closing member and the opened / closed member. Can be prevented.

Particularly, if two passages are provided so as to sandwich the central portion of the concave portion (structure of claim 2), the air flow in the concave portion becomes smooth, and the diameter of the main body portion is from the lower portion to the upper portion. As it becomes smaller, the outer appearance can be improved by making it gradually smaller (structure of claim 3). In addition,
If the bottom of the main body is provided with an engaging portion having a hollow trunk portion that engages with a hole formed in the opening / closing member and an engaging piece (structure of claim 4), the engaging portion and the main body are Since they are integrated, a screw for attaching the cushioning member to the opening / closing member is not necessary, the manufacturing cost can be minimized, and the assembling workability is improved. Furthermore, if a convex portion that is elastically deformable is provided on the periphery of the bottom portion of the main body portion (structure of claim 5), it is possible to prevent rainwater and dust from entering the engagement hole.

According to the above construction, when the opening / closing member is opened, the opening / closing member or the member to be opened / closed can be prevented from sticking to the cushioning member, and water or dust that easily accumulates in the recessed portion on the upper surface can be flowed through the passage so This can contribute to improving the appearance of the member. Further, since the main body and the engaging portion are integrated, they can be attached by one-touch work. Since a plurality of elastically changeable engaging pieces are provided on the outer surface of the engaging portion formed vertically from the bottom surface of the main body portion, it is possible that the cushioning member may fall off after being attached to the opened / closed member. Will be very low.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front partial cross-sectional view showing a main body portion 2 and an engaging portion 6 of the cushioning member 1, and FIG. 2 is a side partial cross-sectional view of the cushioning member 1 shown in FIG. 3 is a top view of the cushioning member 1 shown in FIG. 1, FIG. 4 is a bottom view of the cushioning member 1 shown in FIG. 1, and FIG. 5 is an opened / closed member 14 of the cushioning member 1 shown in FIG.
FIG. 9 is a front view showing a state of being in contact with the opening / closing member 9 after being attached to the. FIG. 6 is a front view showing a state after the cushioning member 1 shown in FIG. 1 is attached to the opening / closing member 14.
Is a front view showing a state of the cushioning member 1 shown in FIG. 1 before being attached to the opened / closed member 14, and FIG. 8 is a diagram showing a state after being attached to the conventional opened / closed member 22 having the contact portion 24 and the attachment member M.
FIG. 9 is a cross-sectional view showing a state in which it is in contact with the opening / closing member 23, and FIG. 9 is a perspective view of the conventional product shown in FIG.

In these drawings, 1 is a buffer member, 2 is a main body part, 3 is an abutment surface, 4 is a concave part, 5 is a passage, 6 is an engaging part, 7 is a bottom surface, 8 is an engaging hole, and 9 is an engaging hole. An opening / closing member, 10 is a convex portion, 11 is a tip portion, 12 is a trunk portion, 13 is an engaging piece, 14 is an opened / closed member, 15 is a hollow portion, 16 is a divider portion, 17
Is an abutting portion, 21 is a cushion rubber, 22 is an opened / closed member, 23 is an opening / closing member, 24 is an abutting portion, T is an upper surface portion, O
Indicates an opening, and M indicates a mounting member.

In the structure shown in FIG. 1, the cushioning member 1 has a substantially cylindrical main body 2 made of a soft resin such as TPE (thermoplastic elastomer), and a bottom surface 7 of the main body 2 which protrudes downward to engage the cushioning member 1. The engaging portion 6 that fits into the dowel is integrally formed. The engagement portion 6 can be fixed by fitting it into the engagement hole 8 formed in the opened / closed member 14. In addition, as shown in FIG. 1, the engaging portion 6 has a shaft-shaped trunk portion 1
2 is formed, and four radial elastically changeable engaging pieces 13 are provided on the outer surface of the trunk portion 12 at equal intervals. In the attachment work to the opened / closed member 14 of the present invention, the trunk portion 1
2 is an engaging hole 8 formed in the openable member 14
When it is inserted into, the engaging piece 13 elastically changes and the cushioning member 1 comes into contact with the opened / closed member 14. After the engaging piece 13 has elastically changed, it returns to its original position, so that the cushioning member 1
The member 14 to be opened and closed is securely engaged.

Next, in such a structure, a hollow portion 15 is provided in the trunk portion 12 of the engaging portion 6 as shown in FIG.
A divider portion 16 is formed substantially in the middle of the hollow portion 15. By providing the hollow portion 15, the engaging piece 13 is allowed to move inward, and the divider portion 1
By providing 6, the rigidity of the entire engaging portion can be maintained high.

As shown in FIG. 1, a thin, flexible, deformable convex portion 10 is formed on the bottom surface 7 of the bottom surface 7 of the main body 2 along the entire outer peripheral edge thereof.
It is provided so as to project from. The convex portion 10 is a member to be opened / closed 1 that is fitted between the engaging piece 13 and the bottom surface 7 of the main body portion 2.
4 is allowed to prevent rattling or inclination between the main body portion 2 and the opened / closed member 14 in a state of being attached to the engagement hole 8 of the opened / closed member 14. Due to the provision of the convex portion 10, the engaging portion provided on the cushioning member 1 in the mounted state further has the opened / closed member 1
It is possible to prevent rainwater, dust, and the like from entering the engagement hole because the seal is made by the contact between the protrusion 4 and the convex portion 10.

Next, the passage 5 formed in the body portion 2 of the cushioning member 1 will be described. As shown in FIG. 4, a concave portion 4 is provided in the contact portion of the contact surface 3 of the substantially cylindrical body portion 2. By providing the concave portion 4, when the cushioning member 1 comes into contact with the opening / closing member 9, the peripheral edge of the contact surface 3 is easily bent, and there is an effect of contributing to the cushioning function of the cushioning member 1. Further, on the outer periphery of the contact surface 3, since the passage 5 communicating from the inside of the recess 4 to the outer surface of the main body portion 2 is formed, when the contact surface 3 of the buffer member 1 comes into contact with the opening / closing member 9, The passages 5 allow the air to reach the outside of the recess without accumulating in the recess 4. Therefore, even when the opening / closing member comes into contact with the contact portion, the air in the recess is not sealed, and the main body portion 2 of the cushioning member 1 does not have to stick to the opening / closing member 9.

Although the passage 5 is provided in the contact portion in the embodiment, the passage 5 may be provided so as to penetrate the inside and the outside of the recess, for example, the central portion of the outer surface of the main body and the inside of the recess. It may be a hole. Furthermore, although the main body 2 and the engaging portion 6 are integrally formed of the same material in the embodiment, they may be formed of different materials. For example, the main body portion may be a thermoplastic elastomer, the engaging portion may be polyamide, or the like. Two-color molding may be performed integrally with a hard resin such as polypropylene.

[0017]

As described above, according to the present invention, a main body part to be attached to one of the mounted member and the opening / closing member which are close to each other when closing the opening / closing member of an automobile, and the opening / closing member. In the cushioning member having the abutting portion that abuts against the other of the members to be opened and closed, the abutting surface of the abutting portion is formed with a concave portion, and the main body portion is provided with the passage leading to the concave portion, so that the opening and closing member is opened At this time, the air in the recess formed on the upper surface of the main body part escapes in the passage passed through the recess, and it is possible to prevent the problem that occurs due to the air being sealed in the recess, dust, water, etc. Those that impair the external appearance and function of the cushioning member are less likely to accumulate, and can also contribute to protection of the cushioning member.

[Brief description of drawings]

FIG. 1 is a front partial cross-sectional view showing a main body portion and an engaging portion of a cushioning member.

FIG. 2 is a partial side sectional view of the cushioning member shown in FIG.

FIG. 3 is a top view of the cushioning member shown in FIG.

FIG. 4 is a bottom view of the cushioning member shown in FIG.

5 is a front view showing a state where the cushioning member shown in FIG. 1 comes into contact with the opening / closing member after being attached to the member to be opened / closed.

6 is a front view showing a state after the cushioning member shown in FIG. 1 is attached to a member to be opened and closed.

FIG. 7 is a front view showing a state before the cushioning member shown in FIG. 1 is attached to a member to be opened and closed.

FIG. 8 is a cross-sectional view showing a state in which a conventional product having an abutting portion and an engaging portion is attached to an opening / closing member and then in contact with the opening / closing member.

9 is a perspective view of the conventional product shown in FIG. 1 cushioning member 2 body 3 contact surface 4 recess 5 passages 6 Engagement part 7 Bottom 8 engagement holes 9 Opening / closing member 10 convex 11 Tip 12 executives 13 engagement piece 14 Opened and closed members 15 Hollow part 16 divider 17 Contact part 21 cushion rubber 22 Opened and closed parts 23 Opening / closing member 24 Contact part T top surface O opening M mounting member

Claims (5)

[Claims] 1. A buffer having an opening / closing member that is close when closing the opening / closing member, a main body attached to one of the opening / closing members, and an abutting portion that abuts on the other of the opening / closing member and the opening / closing member. In the member, a recess is formed in the contact surface of the contact portion, and a passage communicating with the recess is provided in the main body portion. 2. The passage is provided with a central portion of the concave portion sandwiched therebetween.
The cushioning member according to claim 1, wherein the cushioning member is provided as one. 3. The cushioning member according to claim 1, wherein the main body portion is formed in a substantially cylindrical shape, and the circumference thereof is gradually reduced from the bottom portion to the upper portion. 4. An engaging portion having an engaging piece that engages with an engaging hole formed in one of the opening / closing member and the opened / closed member is provided on the bottom of the main body. The cushioning member according to any one of 1 to 3. 5. The cushioning member according to claim 1, wherein an elastically deformable convex portion is provided on a peripheral edge of a bottom portion of the main body portion.