JP4996543B2 - Lid member locking structure - Google Patents

Description

  The present invention relates to a lid member locking structure, and more particularly, to a structure for combining an opening of an interior part for a vehicle that houses an airbag and a lid member.

  Conventionally, in an airbag device arranged in an interior part such as an instrument panel in front of a passenger seat of a vehicle, an interior part is formed so that an opening is formed in the interior part, and the airbag protrudes and expands from the opening. An air bag is arranged inside and the opening is normally covered with a lid member.

In this airbag apparatus, for example, the interior structure includes an opening for the interior part and the lid member. For example, the interior part is provided with a shelf that protrudes toward the opening, and the rear side of the lid member is directed outward. An extending claw portion is provided, and these are combined. A technique has been proposed in which the claw portion is engaged with the shelf portion so that the mating surface of the lid member is pressed against the mating surface of the interior part and fastened (Patent Document 1).
JP 2002-128109 A

  However, when an external force is applied to the lid member, the proposed technique may generate a reaction force that exceeds the force with which the claw portion and the shelf portion are engaged, and the lid member may be scattered or dropped. It was.

  Note that the possibility of the lid member scattering or dropping is not limited to the combination of the opening of the instrument panel that houses the airbag device and the lid member that closes it, but other interior parts of the vehicle. This also generally occurs for the combination of the opening of and the lid member that closes the opening.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lid member locking structure that can prevent the lid member from being scattered or dropped when an external force is applied to the lid member. .

  The lid member locking structure according to the present invention has a structure in which a protrusion is provided on the flange of the lid member, and a hook hole and an inclined surface for expanding the flange are provided in the groove portion of the interior part, so that an external force is applied on the lid member. It is possible to prevent the lid member from scattering or dropping off.

That is, the lid member locking structure according to the present invention includes a vehicle interior part in which an opening is formed and a lid member that closes the opening, and the lid member has a flange on at least a part of its periphery. The interior part has a concave groove portion that engages with the flange, a protrusion is formed on the outer surface of the flange, and the flange portion is engaged with the flange in the groove portion. A hook hole is formed on the surface facing the outer surface, and the protrusion on the outer surface of the flange is in contact with the surface facing the outer surface of the flange when the flange is engaged with the groove. At the same time, when an external force is applied to the lid member, the flange moves in the depth direction of the groove portion and engages with the hook hole, and on the surface of the groove portion that faces the hook hole. Is the depth of the groove To the pressed contact with the tip of the flange, to deflect by pressing the tip into the outer side, wherein the inclined surface engaging the projection on the hook hole is formed.

  According to the lid member locking structure according to the present invention configured as described above, when an external force is applied on the lid member, the tip of the flange provided on the lid member is pressed against the inclined surface provided on the groove. It bends outward and the protrusion engages with the hook hole. When the lid member moves upward due to the reaction force of the applied external force, the engaged protrusion comes into contact with the upper end of the hooking hole and suppresses the upward movement of the lid member. For this reason, scattering or dropping off of the lid member can be prevented.

  According to the lid member locking structure according to the present invention, it is possible to prevent the lid member from being scattered or dropped when an external force is applied to the lid member.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a best embodiment according to a lid member locking structure of the invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a main part in a vehicle showing a state in which a lid member is attached to an opening of an instrument panel for explaining an embodiment of the present invention, and FIG. 2 shows a lid member locking structure of FIG. FIG. 3 is an exploded perspective view showing the lid member locking structure of FIG. 2.

  In FIG. 1, a lid member 2 is attached to an instrument panel 1 such that an outer surface 1 a of the instrument panel 1 and an outer surface 2 a of the lid member 2 are substantially flush with each other.

  As shown in FIG. 2, the lid member 2 closes the opening 3 formed in the instrument panel 1. The lid member 2 has a flange 4 on at least a part of the periphery thereof. The instrument panel 1 has a concave groove 6 that engages with the flange 4 when the lid member 2 closes the opening 3.

  Of the groove 6, when the flange 4 is engaged, a surface 9 that faces the outer surface 4 a of the flange 4 is formed with a hook hole 7, and an inclined surface 8 is formed below the surface 10 that faces the hook hole 7. ing. A protrusion 5 is formed on the outer surface 4 a of the flange 4.

  Further, the depth D1 from the outer surface 1a of the instrument panel 1 to the contact portion 8a with which the tip of the flange 4 contacts when the flange 4 of the inclined surface 8 is pressed in the depth direction of the groove portion 6 is a lid It is deeper than the length L1 of the flange 4 from the outer surface 2a of the member 2 (D1> L1). The depth D2 from the upper end 10a of the surface 10 facing the hook hole 7 to the contact portion 8a is shallower than the length L2 of the flange 4 from the inner surface 2b of the lid member 2 (L2> D2).

  The difference (D1−L1) between the depth D1 from the outer surface 1a of the instrument panel 1 to the contact portion 8a and the length L1 of the flange 4 from the outer surface 2a of the lid member 2 is the surface 10 facing the hook hole 7. Is smaller than the difference (L2-D2) between the depth D2 from the upper end 10a to the contact portion 8a and the length L2 of the flange 4 from the inner surface 2b of the lid member 2 (D1-L1 <L2-D2).

  Further, the instrument panel 1 and the groove 6 are molded from a relatively hard resin, and the flange 4 is molded from a softer resin than the instrument panel 1 and the groove 6.

  FIG. 4 is a schematic diagram for explaining an operation in which the protrusion 5 engages with the hooking hole 7 when an external force is applied on the lid member 2. 4A shows a state in which no external force is applied on the lid member 2, FIG. 4B shows a state in which the external force is applied on the lid member 2 and the flange 4 is pressed, and FIG. 4 shows a state in which the flange 4 is bent and the projection 5 is engaged with the hooking hole 7, and FIG. 4D shows a state in which the projection 5 is in contact with the upper end of the hooking hole 7 and the lid member 2 is prevented from popping out. Show.

  4A, when the flange 4 of the groove portion 6 is engaged, the surface 9 facing the outer surface 4a of the flange 4 and a part of the protrusion 5 abut, and the opening 3 is closed by the lid member 2. (Inlay structure).

  When an external force is applied on the lid member 2 and the external force is larger than a frictional force generated between the surface 9 facing the outer surface 4a of the flange 4 and the protrusion 5 in a state where the flange 4 is engaged. The flange 4 moves in the direction of the arrow (downward) shown in FIG.

  At this time, the difference (D1−L1) between the depth D1 from the outer surface 1a of the instrument panel 1 to the contact portion 8a and the length L1 of the flange 4 from the outer surface 2a of the lid member 2 is opposite to the hooking hole 7. Since the depth D2 from the upper end 10a of the surface 10 to be contacted 8a and the length L2 of the flange 4 from the inner surface 2b of the lid member 2 is configured to be smaller (L2-D2). As shown in FIG. 4B, (D1-L1 <L2-D2), the flange 4 can move downward until its tip abuts against the abutting portion 8a.

  When the external force applied on the lid member 2 is larger than the force that pushes the tip of the flange 4 down to the contact portion 8a, the flange 4 is formed of a softer resin than the groove portion 6 and is therefore pressed against the inclined surface 8. The flange 4 is bent in the direction of the arrow shown in FIG. 4C (outward side), and the protrusion 5 engages with the hook hole 7.

  The lid member 2 moves in the arrow direction (upward direction) shown in FIG. 4D due to the reaction force against the external force, but the protrusion 5 engaged with the hook hole 7 comes into contact with the upper end of the hook hole 7. The upward movement of the lid member 2 is suppressed.

  According to the lid member locking structure having such a configuration, when an external force is applied on the lid member 2 and the lid member 2 moves upward by the reaction force, the protrusion 5 provided on the flange 4 is formed in the groove portion 6. Since it abuts on the upper end of the hook hole 7 provided, the upward movement of the lid member 2 is suppressed, and the lid member 2 can be prevented from scattering or dropping off.

  Moreover, according to the lid member locking structure which is such a form, in order to mount the lid member 2 on the instrument panel 1, another part such as a clip is used, or the lid member 2 is rotated or bent. Therefore, it is possible to maintain the conventional assemblability.

  Furthermore, it is not necessary to take measures against impact from external force by adding another part.

  Moreover, it can respond by modification of the existing type | mold which forms the flange 4 and the groove part 6 without changing a basic alignment structure.

  Although the lid member locking structure according to the present embodiment has been described for the case where the lid member 2 is mounted on the instrument panel 1, the instrument panel has an accessory opening for attaching accessory parts. A decorative plate such as a finisher that covers between the accessory part attached to the accessory opening and the accessory opening is also included in the lid part, and the lid member locking structure according to the present invention is limited to this form. In general, the present invention can be widely applied to a laminated structure in which the opening is covered with a lid, and various modifications can be made without departing from the spirit of the invention.

It is a principal part perspective view in the vehicle which shows the state which attached the cover member to the opening part of the instrument panel for describing one Embodiment of this invention. It is the sectional view on the AA line which shows the cover member latching structure of FIG. It is a disassembled perspective view which shows the cover member latching structure of FIG. It is a schematic diagram explaining the operation | movement which a protrusion engages with a hook hole when external force is added on a cover member. (A) is a state in which no external force is applied to the lid member, (b) is a state in which the external force is applied to the lid member and the flange is pressed, and (c) is a state in which the flange is bent and the projection is engaged with the hooking hole. , (D) respectively show a state in which the protrusion is in contact with the upper end of the hooking hole and the cover member is prevented from popping out.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument panel 1a Outer surface 2 of an instrument panel 2 Lid member 2a Outer surface 2b of a lid member Inner surface 3 Opening part 4 Flange 4a Flange outer surface 5 Protrusion 6 Groove part 7 Hook hole 8 Inclined surface 8a Contact part 9 Flange is When engaged, the surface 10 that faces the outer surface of the flange 10 The surface 10a that faces the hooking hole The upper end D1 of the surface that faces the hooking hole D1 The depth D2 from the outer surface of the instrument panel to the contact portion The surface that faces the hooking hole Depth L1 from upper end to contact part Length L2 of flange from outer surface of lid member Length of flange from inner surface of lid member

Claims (2)

An interior part for a vehicle in which an opening is formed;
A lid member that closes the opening,
The lid member has a flange on at least a part of its periphery,
The interior part has a concave groove that engages with the flange,
A protrusion is formed on the outer surface of the flange,
A hook hole is formed in a surface of the groove that faces the outer surface of the flange in a state where the flange is engaged,
The protrusion on the outer surface of the flange is in contact with the surface facing the outer surface of the flange in a state where the flange is engaged with the groove,
When an external force is applied to the lid member, the flange moves in the depth direction of the groove and is engaged with the hook hole.
Of the groove portion, the surface facing the hooking hole is in contact with the front end of the flange pressed in the depth direction of the groove portion, and the front end is pressed outward to bend the protrusion. A lid member locking structure in which an inclined surface to be engaged with the hooking hole is formed.   The depth from the outer surface of the interior part to the contact portion with which the tip of the flange pressed in the depth direction of the inclined surface comes into contact is deeper than the length of the flange from the outer surface of the lid member. And the depth from the upper end of the surface facing the hooking hole to the contact portion is set to be shallower than the length of the flange from the inner surface of the lid member, respectively. Item 2. The lid member locking structure according to Item 1.

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