JP2008213778A - Glove box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light and good-designed glove box capable of relaxing a shock when the body of an occupant collides with the glove box in the case of suddenly braking and of being manufactured at low costs. <P>SOLUTION: A box main body 1 of the glove box and a door panel 5 are formed from a resin, and a panel inner wall part 2 of the box main body 1 as a part opposite to the door panel 5 is formed into a corrugated shape wherein projecting parts 20 projecting toward the door panel 5 and recessed parts 21 recessed to a side opposite to the door panel 5 are arranged alternately. The corrugated shape panel inner wall part 2 absorbs a shock by deforming in a collision. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a grab box attached to an automobile.

  A grab box is a type of vehicle interior. A grab box generally has a box shape that is attached to an automobile and a door panel that is attached to the box body and covers a surface of the box body on the interior side of the vehicle compartment, and stores various kinds of luggage inside the box body. . The grab box is generally attached to a position corresponding to the front side of the passenger seat in the instrument panel.

  By the way, if the occupant's body jumps forward in the vehicle traveling direction during sudden braking, the occupant's body (for example, knee) may collide with the grab box. In order to absorb this impact, there is a technique of providing an energy absorbing material in a grab box (see, for example, Patent Document 1).

  In the grab box introduced in Patent Document 1, an energy absorbing material separate from the box body and the door panel is disposed in the gap between the resin box body and the resin door panel. When the occupant's body collides with the grab box during sudden braking, the energy absorber is deformed to absorb the impact.

  Incidentally, the energy absorbing material is separate from the box body and the door panel, and is generally made of metal. For this reason, providing the energy absorbing material increases the mass of the grab box. Therefore, according to this technique, there has been a problem that it is not possible to cope with the weight reduction of vehicles that has been required in recent years. Further, since an energy absorbing material separate from the box body and the door panel is required, the grab box introduced in Patent Document 1 has a problem that the number of parts is large and the manufacturing cost is increased.

  There is also a technique in which a resin-made fracture rib is integrally formed with the box body instead of the energy absorbing material (for example, see Patent Document 2). According to the grab box introduced in Patent Document 2, when the occupant's body collides during sudden braking, the breaking rib breaks and absorbs the impact. Moreover, since the breaking rib is integrally formed with the box body and is made of resin, it is lighter than the grab box introduced in Patent Document 1.

  However, in this type of grab box, the thickness differs greatly between the portion of the box body where the breaking rib is provided and the portion where the breaking rib is not provided. For this reason, sink marks are generated on the back surface side of the breaking rib in the grab box. Therefore, the grab box introduced in Patent Document 2 has a problem of poor design.

  The breaking rib projects from the box body toward the door panel. For this reason, the mold for molding the box body requires a slide core for molding the rib. FIG. 4 is an exploded perspective view schematically showing an example of a grab box having a breaking rib, and FIG. 5 is a cross-sectional view schematically showing a state where the grab box shown in FIG. 4 is cut at the position AA in FIG. Shown in

  In the grab box shown in FIG. 4, the box body 100 is made of resin and has a substantially box shape opening upward. The vehicle interior side (rear side in FIG. 4) surface of the box body 100 is covered with a resin door panel 150. In the box body 100, a wall rib (panel inner wall 120) facing the door panel 150 is formed with a breaking rib 125 (shown by a dotted line in FIG. 4) protruding toward the door panel 150. The breaking rib 125 is made of resin and is integrally formed with the box body 100. Therefore, the mold opening direction of the mold for molding the surface 127 of the panel inner wall part 120 (hereinafter referred to as the first mold opening direction a) and the front wall part 130 facing the panel inner wall part 120. The mold opening direction of the mold for molding the surface 137 (hereinafter referred to as the second mold opening direction b) needs to be set in a direction corresponding to the protruding direction of the fracture rib 125. If the protruding direction of the breaking rib 125 matches the first mold opening direction and the second mold opening direction, the surface of the box body 100 can be molded with the mold surface of the same mold.

By the way, the grab box is a device for accommodating luggage inside. Therefore, the grab box is required to have a relatively large rigidity. In order to increase the rigidity of the grab box, it is effective to project the fracture rib 125 in a direction perpendicular to the panel inner wall portion 120 and the door panel 150 (or intersecting at an angle close to a right angle). However, in this case, as shown in FIG. 5, the protruding direction of the fracture rib 125 does not match both the first mold opening direction a and the second mold opening direction b. Therefore, in this case, a mold for molding the box body 100, a mold for molding the inner surface 170 of the box body 100, a mold for molding the surface 127 of the panel inner wall 120, and the front wall It is necessary to divide the mold into three molds for molding the surface 137 of the portion 130. Then, one of the mold for molding the surface 127 of the panel inner wall 120 and the mold for molding the surface 137 of the front wall 130 has to be a slide core.
JP 7-237504 A JP 7-61307 A

  The present invention has been made in view of the above circumstances, and can provide a grab box that can alleviate the impact when the occupant's body collides during sudden braking, can be manufactured at low cost, is lightweight, and has excellent design. Objective.

  The grab box of the present invention that solves the above problems is a resin box main body 1 that has a box shape and is attached to an automobile, and a resin door panel 5 that is attached to the box main body 1 and covers the surface of the box main body 1 on the vehicle interior side. The panel inner wall 2 facing the door panel 5 in the box body 1 has a raised portion 20 that protrudes toward the door panel 5 and a recessed portion 21 that is recessed toward the opposite side of the door panel 5. It is characterized by forming corrugated plates arranged alternately.

The grab box of the present invention preferably comprises at least one of the following (1) to (2).
(1) The top portion 200 of the raised portion 20 and the top portion 210 of the depressed portion 21 are curved.
(2) The panel inner wall portion 2 has a thin portion that is partially thin.

  Since the panel inner wall portion in the grab box of the present invention has a corrugated plate shape, it can be deformed. For this reason, the panel inner wall portion in the grab box of the present invention is deformed and absorbs an impact when the occupant's body collides during sudden braking (hereinafter abbreviated as collision). The panel inner wall part is a part of the box body, and is formed simultaneously with the other wall part of the box body (referred to as a general wall part) when the box body is formed. For this reason, the grab box of the present invention can be manufactured at low cost. Furthermore, because the panel inner wall has a corrugated shape, sufficient rigidity is ensured even if some of the ridges and depressions are raised (or depressed) in a direction that is not perpendicular to the panel inner wall and door panel. it can. For this reason, the surface of the part which faces a panel inner wall part in the general wall part, and the surface of a panel inner wall part can be shape | molded with the same shaping | molding die. Therefore, unlike the conventional grab box having a fractured rib, the grab box of the present invention can be manufactured at a very low cost because the mold does not require a slide core.

  The panel inner wall portion of the grab box of the present invention having the above (1) is easily deformed at the time of collision because the top portion of the raised portion and the top portion of the depressed portion are curved. For this reason, the grab box of this invention provided with said (1) can absorb an impact more reliably at the time of a collision.

  The panel inner wall part in the grab box of the present invention having the above (2) is easily deformed starting from the thin part at the time of collision. For this reason, the grab box of this invention provided with said (2) can absorb an impact more reliably.

  Hereinafter, the grab box of the present invention will be described with reference to the drawings.

(Example 1)
The grab box of Example 1 includes the above (1). An exploded perspective view schematically showing the grab box of Example 1 is shown in FIG. FIG. 2 is a cross-sectional view schematically showing a state where the grab box of Example 1 is cut at the position AA in FIG. Hereinafter, the upper, lower, left, right, front, and rear in the first embodiment refer to the upper, lower, left, right, front, and rear shown in FIG.

  The grab box of Example 1 has a box body 1 and a door panel 5. The box body 1 has a box shape opening upward. The box body 1 has a panel inner wall portion 2 and a general wall portion 3. The panel inner wall portion 2 is a wall portion facing a door panel 5 described later, and the general wall portion 3 is the other wall portion.

  The panel inner wall 2 is corrugated. Specifically, the panel inner wall portion 2 has a transverse corrugated plate shape in which a protruding portion 20 that protrudes toward the door panel 5 and a depressed portion 21 that is depressed on the opposite side of the door panel 5 are arranged in the vertical direction. The raised portion 20 and the depressed portion 21 each extend in the left-right direction. The wall thickness of the panel inner wall part 2 is substantially constant. As shown in FIG. 2, the ridge top 200 that is the top of the ridge 20 is curved. The depression top 210 that is the top of the depression 21 is also curved. The thickness of the panel inner wall 2 is substantially constant (2 mm). The general wall 3 is substantially flat. The wall thickness of the general wall portion 3 is also substantially constant (2 mm).

  The door panel 5 has a plate shape and covers the surface of the panel inner wall 2 of the box body 1. The wall thickness of the door panel 5 is substantially constant (2.5 mm).

  The panel inner wall part 2 in the grab box of Example 1 is corrugated. For this reason, the panel inner wall part 2 deform | transforms at the time of a collision, and absorbs an impact. Moreover, in the grab box of Example 1, since the panel inner wall part 2 itself which is a part of the box main body 1 deform | transforms and absorbs an impact, an energy absorber with a large mass is not required. Therefore, the grab box of Example 1 can be reduced in weight. Moreover, since an energy absorbing material separate from the box body 1 is not required, the number of parts of the grab box can be reduced. Therefore, the grab box of Example 1 can be manufactured at low cost.

  Furthermore, since the grab box of Example 1 absorbs an impact by the deformation of the panel inner wall 2 itself, it does not require a breaking rib. For this reason, the panel inner wall part 2 does not have a part with a greatly different thickness. Therefore, in the grab box of Example 1, sink marks are not generated in the box body 1. Therefore, the grab box of Example 1 is excellent in design. Furthermore, in the grab box of the first embodiment, the thickness of the panel inner wall portion 2 is substantially constant, so that sink marks occurring in the box body 1 can be more reliably prevented. Therefore, the grab box of Example 1 is further excellent in design.

  Furthermore, since the panel inner wall 2 in the grab box of the first embodiment has a corrugated plate shape, a part of the raised portion 20 and the depressed portion 21 is raised in a direction not orthogonal to the panel inner wall 2 and the door panel 5 ( Even if it is depressed, sufficient rigidity can be secured. For this reason, the surface of the part (front wall part 30) which faces the panel inner wall part 2 in the general wall part 3 and the surface of the panel inner wall part 2 can be shape | molded with the same shaping | molding die. Therefore, since the grab box of Example 1 does not require a slide core in the mold, it can be manufactured at a very low cost. In the grab box of Example 1, the mold opening direction of the mold for molding the surface of the front wall portion 30 and the surface of the panel inner wall portion 2 (that is, the surface of the box body 1) is the direction of arrow c in FIG. The mold opening direction of the mold for molding the inner surface of the box body 1 is the direction of the arrow d in FIG. The raised portion 20 and the depressed portion 21 of the panel inner wall portion 2 are formed in a shape that does not undercut with respect to the mold opening directions c and d.

(Example 2)
The grab box of Example 2 includes the above (1) and (2). The grab box of Example 2 is the same as the grab box of Example 1 except for the shape of the panel inner wall. The principal part expanded sectional view which represents a mode that the grab box of Example 2 was cut | disconnected in the same position as the AA position in FIG. 1 is shown in FIG.

  In the panel inner wall portion 2 in the grab box of the second embodiment, the raised top portion 200 is thinner than the other portions. That is, the raised top part 200 in the grab box of Example 2 corresponds to the thin part in (2) above. The wall thickness w1 of the raised top portion 200 is 1.5 mm, and the wall thickness w2 of the depressed top portion 210 is 2.0 mm. The thickness of the portion connecting the raised top portion 200 and the depressed top portion 210 gradually changes from the depressed top portion 210 to the raised top portion 200.

  The panel inner wall portion 2 in the grab box of the second embodiment has a thin portion (that is, a raised top portion 200). A thin part is easy to change compared with parts other than a thin part. For this reason, the panel inner wall part 2 in the grab box of Example 2 is deformed starting from the thin part at the time of collision. Therefore, according to the grab box of the second embodiment, the panel inner wall portion 2 is more reliably deformed, so that the impact can be absorbed more reliably.

  By the way, the raised top portion 200 is a portion to which an impact is directly transmitted through the door panel 5 at the time of a collision. In the grab box of the second embodiment, the thin wall portion is composed of the raised top portion 200, so that the panel inner wall portion 2 is more reliably deformed at the time of collision. Therefore, the grab box of Example 2 absorbs impact more reliably.

  In the grab box according to the second embodiment, the thin portion includes the raised top portion 200, but the position of the thin portion is not limited thereto. Depending on the shape of the panel inner wall portion 2 and the required design properties, the other portion of the panel inner wall portion 2 may be a thin wall portion.

It is a disassembled perspective view which represents typically the grab box of Example 1. FIG. It is sectional drawing which represents typically a mode that the grab box of Example 1 was cut | disconnected in the AA position in FIG. It is sectional drawing which represents typically a mode that the grab box of Example 2 was cut | disconnected in the same position as the AA position in FIG. It is a disassembled perspective view which represents the conventional grab box typically. It is sectional drawing which represents typically a mode that the conventional grab box was cut | disconnected in the AA position in FIG.

Explanation of symbols

1: Box body 2: Panel inner wall portion 3: General wall portion 5: Door panel 20: Raised portion 21: Depressed portion 200: Raised top portion 210: Depressed top portion

Claims (3)

A box body made of resin that is attached to an automobile having a box shape, and a resin door panel that is attached to the box body and covers a surface of the box body on the vehicle interior side,
The panel inner wall portion facing the door panel in the box body has a corrugated plate shape in which raised portions that protrude toward the door panel and recessed portions that are recessed toward the opposite side of the door panel are alternately arranged. A grab box, characterized by   The grab box according to claim 1, wherein a top portion of the raised portion and a top portion of the depressed portion are curved.   The grab box according to claim 1, wherein the panel inner wall portion has a thin portion that is partially thin.

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