JP2022059900A - Cushion structure of opening/closing mechanism - Google Patents

Abstract

To provide a cushion structure of an opening/closing structure which enables reduction of stress occurring in an elastic member.SOLUTION: A cushion structure of an opening/closing mechanism 5 includes: a body 2 provided with an opening; and an opening/closing body 3 which opens or closes the opening of the body 2. The cushion structure has: a protruding part 33 provided at one of the body 2 and the opening/closing body 3; and an elastic member 4 provided at the other of the body 2 and the opening/closing body 3. The elastic member 4 has a plate-like part which contacts with the protruding part 33 on its one surface when the opening is in a closed state in which the opening is closed by the opening/closing body 3.SELECTED DRAWING: Figure 4

Description

The present invention relates to a cushion structure of an opening / closing mechanism in which an opening / closing of a main body is opened / closed by an opening / closing body.

As this type of opening / closing mechanism, it has been proposed to provide a cushioning material made of synthetic rubber having a cylindrical contact portion and a substantially truncated cone-shaped base on one of the opening / closing body and the main body (for example, a patent). See Document 1). In Patent Document 1, when the open / close body is in the normal closed position, the contact portion comes into contact with the other end of the open / close body and the main body, and the base portion is separated from the other. Then, when the opening / closing body moves to the closing side by a predetermined amount from the normal closing position, the base comes into contact with the other side of the opening / closing body and the main body. Further, the contact portion is formed of an elastic body having a hardness lower than that of the base portion.

Japanese Unexamined Patent Publication No. 2006-57283

By the way, when the elastic member is deformed in the compression direction as in the cushion material described in Patent Document 1, the stress generated in the elastic member at the time of deformation becomes relatively high. As a result, there is a problem that the elastic member is liable to be permanently deformed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cushion structure of an opening / closing mechanism capable of reducing stress generated in an elastic member.

In order to achieve the above object, according to the present invention,
A cushion structure of an opening / closing mechanism including a main body having an opening and an opening / closing body for opening / closing the opening of the main body.
A convex portion provided on one of the main body and the opening / closing body,
An opening / closing provided on the other side of the main body and the opening / closing body, and having an elastic member having a plate-like portion whose one surface abuts on the convex portion when the opening is closed by the opening / closing body. A cushioning structure of the mechanism is provided.

According to the cushion structure of this opening / closing mechanism, when the opening is closed by the opening / closing body, the convex portion abuts on one surface of the plate-shaped portion, and the plate-shaped portion is elastically deformed. At this time, since the plate-shaped portion is deformed in the bending direction, the stress generated in the plate-shaped portion is smaller than that in the case of deforming in the compression direction. Therefore, permanent deformation of the elastic member can be suppressed.

Further, in the cushion structure of the opening / closing mechanism,
It is provided with a hole formed in the other of the main body and the opening / closing body and provided with the elastic member.
The plate-shaped portion is arranged so as to close the hole portion.
The hole portion may receive the tip end side of the convex portion in the closed state.

According to the cushion structure of this opening / closing mechanism, when the opening is closed by the opening / closing body, the convex portion is received by the hole portion in a state where the plate-shaped portion is elastically deformed. Here, since the plate-shaped portion is formed relatively large so as to close the hole portion, a relatively large amount of deformation of the elastic member can be secured, and the elastic member is deformed as compared with the case where the elastic member is deformed in the compression direction. The spring constant can be reduced. Therefore, it is possible to reduce the hitting sound between the convex portion and the elastic member.
Further, since the plate-shaped portion is arranged so as to close the hole portion, the elastic member does not greatly protrude from the other of the main body and the opening / closing body, and the appearance is not impaired.

Further, in the cushion structure of the opening / closing mechanism,
The plate-shaped portion may be configured so that the amount of displacement at a predetermined portion becomes large when it comes into contact with the convex portion.

According to the cushion structure of this opening / closing mechanism, when the plate-shaped portion and the convex portion come into contact with each other, the convex portion is guided on the plate-shaped body toward a predetermined place having a large displacement amount. As a result, even if one of the main body and the opening / closing body is displaced from the intended position with respect to the other, the convex portion is guided to a predetermined position of the plate-shaped body when the opening / closing body is closed, so that the main body and the opening / closing body are opened / closed. One of the bodies is guided to the desired position with respect to the other.

Further, in the cushion structure of the opening / closing mechanism,
The plate-shaped portion has a circular shape in a plan view, and may be configured so that the amount of displacement at the center becomes large when the plate-shaped portion comes into contact with the convex portion.

According to the cushion structure of this opening / closing mechanism, when the opening is closed by the opening / closing body, the convex portion is guided toward the center on the circular plate-shaped body.

According to the cushion structure of the opening / closing mechanism of the present invention, the stress generated in the elastic member can be reduced.

It is explanatory drawing of the glove box which shows one Embodiment of this invention and shows the state which the storage part is open. It is explanatory drawing of the glove box which shows the state which the lid closed the opening of an instrument panel. It is a partial cross-sectional view of the glove box which shows the state which the convex part of the lid is not in contact with the cushion material of an instrument panel. It is a partial cross-sectional view of the glove box which shows the state which the convex part of the lid is in contact with the cushion material of an instrument panel. It is a partially enlarged sectional view of the instrument panel which shows the mounting state of a cushion material. It is a partially enlarged plan view of the instrument panel which shows the mounting state of a cushion material. It is a partially enlarged cross-sectional view of the instrument panel which shows the state which the convex part of a lid abuts with a cushion material. It is a partially enlarged sectional view of the instrument panel which shows the modification. It is a partially enlarged sectional view of the instrument panel which shows the modification. It is a partially enlarged sectional view of the instrument panel which shows the modification. It is a partially enlarged sectional view of the instrument panel which shows the modification. It is a partially enlarged sectional view of the instrument panel which shows the modification.

1 to 7 show an embodiment of the present invention, FIG. 1 is an explanatory view of a glove box showing a state in which a storage portion is open, and FIG. 2 is a state in which a lid closes an opening of an instrument panel. 3 is a partial cross-sectional view of the glove box showing a state in which the convex portion of the lid is not in contact with the cushion material of the instrument panel, and FIG. 4 is a partial cross-sectional view of the glove box showing the convex portion of the lid of the instrument panel. A partial cross-sectional view of the glove box showing the state of contact with the cushion material, FIG. 5 is a partially enlarged cross-sectional view of the instrument panel showing the mounting state of the cushion material, and FIG. 6 is an instrument panel showing the mounting state of the cushion material. A partially enlarged plan view of the above, FIG. 7 is a partially enlarged cross-sectional view of an instrument panel showing a state in which the convex portion of the lid is in contact with the cushion material.

As shown in FIG. 1, the glove box 1 includes a concave storage portion 21 formed in an instrument panel 2 of an automobile vehicle, and a lid 3 capable of closing the storage portion 21. The instrument panel 2 has a general portion 22 made of resin and forming a design surface of the instrument panel 2, and a step portion 23 formed at a predetermined position in front of the passenger seat and formed lower than the general portion 22. The storage portion 21 is formed inside the step portion 23 even lower than the step portion 23. The term "formed low" here means that it is formed outward when viewed from the indoor side. That is, as shown in FIG. 1, the instrument panel 2 has a first opening 24 of the step portion 23 formed in the general portion 22 and a second opening 25 of the storage portion 21 formed in the step portion 23. Have.

As shown in FIG. 2, the lid 3 is made of resin, is pivotally supported by the instrument panel 2, and opens and closes the first opening 24 of the step portion 23. The lid 3 has an outer panel 31 that forms a design surface together with the general portion 22 with the first opening 24 closed. Further, as shown in FIG. 3, the lid 3 has an inner panel 32 arranged on the instrument panel 2 side. The inner panel 32 is formed with a convex portion 33 projecting toward the instrument panel 2. The convex portion 33 is formed so as to taper from the base end to the tip end.

As shown in FIG. 4, a hole 26 for receiving the convex portion 33 is formed in the step portion 23 of the instrument panel 2 with the lid 3 closed. A cushion material 4 that comes into contact with the convex portion 33 with the lid 3 closed is arranged in the hole portion 26. In the present embodiment, the convex portion 33 and the cushion material 4 form a cushion structure 5 of the lid 3 as an opening / closing body.

As shown in FIG. 5, the hole 26 is formed in a circular shape in a plan view, and has a first inner peripheral portion 26a extending from the front surface of the instrument panel 2 on the lid 3 side toward the back surface opposite to the lid 3. 1 It has a stepped portion 26b extending from the back surface side end of the inner peripheral portion 26a toward the center of the hole 26, and a second inner peripheral portion 26c extending from the inner end of the stepped portion 26b to the back surface of the instrument panel 2. .. That is, the second inner peripheral portion 26c is formed to have a smaller diameter than the first inner peripheral portion 26a. In the present embodiment, the first inner peripheral portion 26a is formed so as to be inclined obliquely toward the central axis side of the hole portion 26 toward the back surface side.

The cushion material 4 is made of an elastic material, and in the present embodiment, is made of rubber. The cushion material 4 has a plate-shaped portion 41 arranged radially inside the first inner peripheral portion 26a and in contact with the step portion 26b, and a lid 3 of the plate-shaped portion 41 arranged radially inside the second inner peripheral portion 26c. A tubular portion 42 extending from the opposite surface to the back surface side of the instrument panel 2 and a claw portion 43 formed on the back surface side end portion side of the tubular portion 42 and locked to the back surface side of the instrument panel 2. Have. The plate-shaped portion 41 is arranged so as to close the hole portion 26. In the present embodiment, the plate-shaped portion 41 is formed in a disk shape, and the tubular portion 42 is formed in a cylindrical shape. The claw portion 43 is formed so that the thickness decreases toward the outer side in the radial direction.

As shown in FIG. 6, in the present embodiment, in a plan view, the radial outside of the tubular portion 42 in the plate-shaped portion 41 forms a contact portion 44 in contact with the step portion 26b. The broken line in FIG. 6 indicates the tubular portion 42. As shown in FIG. 3, the cushion material 4 fitted in the hole portion 26 is fixed by sandwiching the instrument panel 2 between the contact portion 44 and the claw portion 43.

Further, in the present embodiment, in a plan view, the radial inside of the tubular portion 42 in the plate-shaped portion 41 forms an elastically deformed portion 45 that receives the convex portion 33 of the lid 3 and elastically deforms. In the present embodiment, since the thickness of the plate-shaped portion 41 is constant over the radial direction, as shown in FIG. 7, when the plate-shaped portion 41 comes into contact with the convex portion 33, the displacement amount at the center of the plate-shaped portion 41 is large. It will be the largest.

According to the cushion structure 5 of the lid 3 configured as described above, when the first opening 24 is closed by the lid 3, the convex portion 33 comes into contact with one surface of the plate-shaped portion 41, and the plate-shaped portion is formed. Elastically deforms. At this time, as shown in FIG. 7, since the plate-shaped portion 41 is deformed in the bending direction, the stress generated in the plate-shaped portion 41 is smaller than that in the case of deforming in the compression direction. Therefore, the permanent deformation of the cushion material 4 can be suppressed.

Further, since the plate-shaped portion 41 of the cushion material 4 is formed relatively large so as to close the hole portion 26, a relatively large amount of deformation of the cushion material 4 can be secured, and when the cushion material 4 is deformed in the compression direction. The spring constant of the cushion material 4 can be made smaller than that of the cushion material 4. Therefore, it is possible to reduce the hitting sound of the convex portion 33 and the cushion material 4.
Further, since the plate-shaped portion 41 is arranged so as to close the hole portion 26 of the instrument panel 2, the cushion material 4 does not protrude significantly from the instrument panel 2 and does not spoil the appearance.

Further, when the cushion material 4 and the convex portion 33 come into contact with each other, the convex portion 33 is guided on the plate-shaped body 41 toward the center having a large displacement amount. As a result, even if the lid 3 is displaced from the intended position with respect to the instrument panel 2, the lid 3 is moved to the intended position with respect to the instrument panel 2, and the displacement of the lid 3 is automatically performed. It can be corrected.

In the above embodiment, the cushion material 4 is provided on the instrument panel 2 and the convex portion 33 is provided on the lid 3, but the cushion material 4 is provided on the lid 3 and the convex portion 33 is provided on the instrument panel 2. It may be provided. Further, the shape of the cushion material 4 is arbitrary as long as it has the plate-shaped portion 41 in contact with the convex portion 33, and the cushion material can be provided in a place other than the hole portion. Further, although the plate-shaped portion 41 of the cushion material 4 is shown to be circular in a plan view, the shape of the plate-shaped portion 41 is arbitrary, and may be, for example, an ellipse or a polygon.

Further, for example, as shown in FIG. 8, a recess 126d may be formed in the step portion 26b of the hole portion 26, and a protrusion 144 may be formed in the plate-shaped portion 41 to be fitted into the recess 126d. As a result, it is possible to prevent the cushion material 141 from coming off from the instrument panel 2, and to set a large load that can be applied to the plate-shaped portion 41 from the convex portion 33.

Further, for example, as shown in FIG. 9, a recess 246 that promotes central deformation may be formed in the elastically deformed portion 45 of the plate-shaped portion 41. In the cushion material 204, a recess 246 is formed in the center of the surface of the plate-shaped portion 41 opposite to the lid 3, so that the center of the plate-shaped portion 41 is more easily bent.

Further, for example, as shown in FIG. 10, the thickness of the elastically deformed portion 345 of the plate-shaped portion 41 may be changed in the radial direction. In the cushion material 304, the plate-shaped portion 341 is formed so that the thickness gradually increases from the center to the tubular portion 342. As a result, the inside of the elastically deformed portion 345 in the radial direction is easy to bend, and the outside in the radial direction is difficult to bend.

Further, for example, as shown in FIG. 11, a recess 446 that promotes radial outer deformation may be formed in the elastically deformed portion 45 of the plate-shaped portion 41. In the cushion material 404, a recess 446 is formed on the radial outer side of the surface of the plate-shaped portion 41 opposite to the lid 3, so that the radial outer side of the plate-shaped portion 41 is more easily bent.

Further, for example, as shown in FIG. 12, a concave portion 446 that promotes radial outer deformation can be formed in the elastically deformed portion 45 of the plate-shaped portion 41, and a concave portion 547 that promotes central deformation can also be formed. .. In the cushion material 504, the radial outer side and the center of the plate-shaped portion 41 are more easily bent.

Further, in the above embodiment, the present invention is applied to the opening / closing mechanism 5 of the glove box 1, but for example, the present invention can be applied to the opening / closing mechanism of the door.

Although the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. It should also be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

2 Instrument panel 3 Lid 4 Cushion material 5 Cushion structure 24 1st opening 26 Hole 33 Convex part 41 Plate-shaped part 104 Cushion material 204 Cushion material 304 Cushion material 341 Plate-shaped part 404 Cushion material 504 Cushion material

Claims (4)

A cushion structure of an opening / closing mechanism including a main body having an opening and an opening / closing body for opening / closing the opening of the main body.
A convex portion provided on one of the main body and the opening / closing body,
An opening / closing provided on the other side of the main body and the opening / closing body, and having an elastic member having a plate-like portion whose one surface abuts on the convex portion when the opening is closed by the opening / closing body. Cushion structure of the mechanism. It is provided with a hole formed in the other of the main body and the opening / closing body and provided with the elastic member.
The plate-shaped portion is arranged so as to close the hole portion.
The cushion structure of the opening / closing mechanism according to claim 1, wherein the hole portion receives the tip end side of the convex portion in the closed state. The cushion structure of the opening / closing mechanism according to claim 1 or 2, wherein the plate-shaped portion is configured to increase the amount of displacement at a predetermined portion when it comes into contact with the convex portion. The cushion structure of the opening / closing mechanism according to claim 3, wherein the plate-shaped portion has a circular shape in a plan view, and the displacement amount of the center is increased when the convex portion is in contact with the convex portion.

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