JPH0616708U - Resin parts - Google Patents

Abstract

(57) [Abstract] [Purpose] When a resin component is engaged with a mating member, it is possible to prevent excessive bending while maintaining the flexibility of the engaging projection. [Structure] An engaging protrusion 25 is provided on the flange 21 in a protruding manner,
Guide protrusions 27, 27 are provided on both sides of the engagement protrusion 25. An engaging claw 31 that engages with the upper portion of the engaging portion 15 of the panel body 5 is formed at the tip of the protruding portion main body 29 of the engaging protruding portion 25. The tip end of the guide protrusion 27 is slidably contacted with the upper portion of the engagement portion 15, so that the engagement protrusion 25 is formed.
An inclined portion 33 is provided to guide the locking claw 31 of FIG. The protrusion of the engaging protrusion 25 is formed at a portion of the guide protrusion 27 facing the side surface of the engaging portion 15 at a position retracted to the side opposite to the engaging claw 31 of the engaging protrusion 25. An abutment blocking portion 35 is provided to prevent the portion main body 29 from abutting on the engaging portion 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a resin part used for an interior part of a vehicle and the like, and more particularly to an assembly structure to a mating member.

[0002]

[Prior art]

 BACKGROUND ART Resin parts used for vehicle interior parts and the like are generally assembled on a companion member by claw fitting. For example, an improved instrument disclosed in Japanese Utility Model Publication No. 62-87935. In the ment panel, as shown in FIG. 4 (excluding the one-dot chain line), a plurality of fixing clips d and d of the attachment component c are flexibly fitted in the fitting hole b of the panel body a, and thereby, The mounting part c is fixed to the panel body a.

[0003]

[Problems to be solved by the device]

 However, in the above-described improved instrument panel assembly structure, since the fixing clips d, d are immediately inserted into the fitting holes, the fixing clip d is excessively bent and the base portion is bent when the attachment part c is not inserted properly. There was a problem that it was bent and plastically deformed, and the fitting strength decreased.

As a measure for preventing this excessive bending, it is conceivable to provide a reinforcing rib e on the fixing clip d as shown in FIG. 4, but the reinforcing rib e is fixed depending on its shape, thickness, forming position, etc. There is a drawback in that it is difficult to hold the fixing clip d to an optimum degree of deflection because the fixing clip d becomes difficult to bend and becomes difficult to fit, and conversely the deflection preventing function becomes insufficient. Therefore, it is practically difficult to prevent excessive bending by the reinforcing rib e provided on the fixing clip d.

The present invention has been made in view of the above points, and an object thereof is to prevent excessive bending while maintaining the ease of bending of the engaging projections such as the fixing clips.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the means taken by the present invention is to provide a guide protrusion separately from the engagement protrusion, and the guide protrusion is provided on the engagement protrusion of the mating member. An inclined portion for guiding is provided to guide the engaging protrusion accurately to the engaging portion of the mating member, and to prevent the protrusion body of the engaging protrusion from contacting the engaging portion of the mating member. The contact prevention part is provided to prevent the protrusion main body from excessively bending.

Specifically, the means taken by the present invention is intended for a resin component having an engaging projection having a locking claw that is locked to an engaging portion of a mating member at the tip of the projection main body. The guide protrusions are provided on both sides of the engaging protrusion so as to protrude more than the engaging protrusion in the direction in which the engaging protrusion protrudes. An inclined portion is provided that guides the locking claw of the engagement protrusion by engaging the engagement portion of the mating member with the engagement portion, and the inclined portion is provided in the guide protrusion. The protrusion main body of the engaging protrusion is formed at a position opposite to the engaging portion of the mating member at a position retracted to the side opposite to the engaging claw of the engaging protrusion. A contact blocking portion is provided to prevent contact with the engaging portion of the member.

[0008]

[Action]

 With the above configuration, in the present invention, since the engaging projection and the guide projection are formed separately, the flexibility of the engaging projection is maintained as it is.

On the other hand, when the engaging claw is engaged with the engaging portion of the mating member, the guide protrusion is provided so as to protrude more than the engaging protrusion in the direction in which the engaging protrusion protrudes. Therefore, the guide projection contacts the engagement portion before the engagement projection. An inclined portion that guides the engaging claw of the engaging projection by engaging the engaging claw of the engaging projection with the engaging portion of the mating member is provided at the tip of the guiding projection. Therefore, as the resin component and the mating member engage with each other, the inclined portion slides on the engaging portion, and the locking claw is accurately guided to the engaging portion.

Further, the contact prevention portion prevents the protrusion main body of the engagement protrusion from contacting the engagement portion of the mating member, so that the engagement protrusion is prevented from excessively bending after being guided. . Further, since the contact blocking portion is formed at a position retracted to the side opposite to the engaging portion with respect to the locking claw, the contact blocking portion may prevent the locking claw from locking with the engaging portion. Absent.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an example in which the resin part of the present invention is applied to a ventilator grill of a vehicle. As shown in FIG. 1, the two ventilator grills 1, 1 as resin parts are mounted on a panel body 5 of an instrument panel 3 as a mating member.

As shown in FIG. 2, the panel body 5 of the instrument panel 3 is formed in an internal structure in which a cushion material 11 is filled between a skin material 7 and a base material 9. An opening 13 for mounting the ventilator grill 1 is formed in the panel body 5, and in the panel body 5 in the opening 13, the cushion material 11 is omitted and the skin material 7 is directly joined to the base material 9. As a result, a step-like engaging portion 15 lower than the upper surface of the panel body 5 is formed.

As shown in FIG. 1 and FIG. 2, the ventilator grill 1 is an integrally molded product made of synthetic resin that is elongated in the vehicle width direction, and is a cylinder whose top and bottom are open in the center of the grill body 17. -Like air circulation portion 19 is formed, and a flange portion 21 is formed at the upper peripheral portion of the air circulation portion 19, and a large number of louvers 23, 23, ... They are installed side by side.

As a feature of the present invention, as shown in FIG. 3, engaging protrusions 25 are provided at the central portion of the flange 21 of the flange portion 21 of the ventilator grill 1 as shown in FIG. Guide projections 27, 27 are projected downward on both left and right sides of the combined projection 25 in the figure. The engaging projection 25 has a locking claw 31 formed at the tip of a projection main body 29, and the locking claw 31 is adapted to be locked at the lower portion of the engaging part 15 of the panel body 5.

The guide protrusion 27 is formed so as to protrude more than the engagement protrusion 25 in the direction in which the engagement protrusion 25 protrudes (downward direction in FIG. 3), and the guide protrusion 27 has An inclined portion 33 is provided that guides the engaging claw 31 of the engaging projection 25 to engage with the engaging portion 15 by slidingly contacting the upper portion of the engaging portion 15 of the channel body 5.

The guide projection 27 is formed at a position facing the side surface of the engaging portion 15 and at a position retracted to the side opposite to the engaging portion 31 from the engaging claw 31 of the engaging projection. An abutment blocking portion 35 is provided to prevent the projection body 29 of the projection 25 from coming into contact with the engaging portion 15.

Further, a positioning portion 37 that contacts the engaging portion 15 and positions the ventilator grill 1 is provided at a portion of the guide protrusion 27 that faces the upper surface of the engaging portion 15.

Next, the engaging operation of the ventilator grill 1 will be described. The engaging claw 31 at the tip of the protrusion main body 29 of the engaging protrusion 25 is locked to the engaging portion 15 of the panel main body 5, The ventilator grill 1 engages the instrument panel 3, the positioning portion 37 abuts on the engagement portion 15, the flange portion 21 is flush with the upper surface of the panel body 5, and the ventilator grill 1 is the instrument. It is attached to the panel 3.

Since the engagement protrusion 25 and the guide protrusion 27 are formed separately, the flexibility of the engagement protrusion 25 is maintained as it is. On the other hand, when the locking claw 31 is locked to the engaging portion 15 of the panel body 5, the guide protruding portion 27 provided separately from the engaging protruding portion 25 protrudes from the engaging protruding portion 25. Since it is provided so as to project more than the engaging protrusion 25 in the direction of the engagement, the guide protrusion 27 contacts the upper portion of the engaging portion 15 before the engaging protrusion 25.

The tip of the guide projection 27 is slidably contacted with the upper portion of the engagement portion 15 of the panel body 5, so that the locking claw 31 of the engagement projection 25 is engaged with the panel body 5. Since the inclined portion 33 that guides to engage with the portion 15 is provided, the inclined portion 33 is engaged with the engagement portion 15 of the panel body in accordance with the engagement operation between the ventilator grill 1 and the instrument panel 3. The engaging claw 31 is accurately guided by the engaging portion 15 of the panel body 5 by slidingly contacting the upper part of the.

Further, since the contact prevention portion 35 prevents the protrusion main body 29 of the engagement protrusion 25 from abutting on the side surface of the engagement portion 15 of the panel body 5, the engagement protrusion 25 is excessively moved after the guide. Deflection is prevented. Further, since the contact blocking portion 35 is formed at a position retracted from the engaging claw 31 to the side opposite to the engaging portion, the engaging claw 31 is prevented from engaging with the engaging portion 15 of the panel body 5. The contact blocking portion 35 does not interfere.

As described above, according to this embodiment, it is possible to prevent the engagement protrusion 25 from being excessively deflected while maintaining the flexibility of the engagement protrusion 25, and to prevent plastic deformation. The combined strength can be maintained.

The resin part of the present invention may be applied to parts other than the ventilator grill 1.

[0025]

[Effect of device]

 As described above, according to the present invention, since the guide projection is provided separately from the engagement projection, the flexibility of the engagement projection can be maintained as it is. The guide projection has an inclined portion that guides the engagement projection to the engagement portion of the mating member, and prevents the projection main body of the engagement projection from contacting the engagement portion. Since the protrusion is provided, it is possible to accurately guide the engaging protrusion to the engaging portion and prevent the protrusion main body from being excessively bent after being guided. Therefore, it is possible to prevent excessive flexure while maintaining the flexibility of the engaging projections, and to prevent plastic deformation and maintain the engagement strength.

[Brief description of drawings]

FIG. 1 is a perspective view of an instrument panel according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing the engagement state between the panel body and the ventilator grill of the instrument panel.

FIG. 3 is a left side view of the ventilator grill.

FIG. 4 is an enlarged sectional view of a main part of a conventional instrument panel.

[Explanation of symbols]

 15 Engagement Part 25 Engagement Protrusion Part 27 Guide Protrusion Part 29 Protrusion Part Body 31 Locking Claw 33 Inclined Part 35 Contact Blocking Part

Claims (1)

[Scope of utility model registration request] 1. A resin component having an engaging protrusion having a locking claw that is engaged with an engaging portion of a mating member at the tip of the protruding body, the resin component being provided on both sides of the engaging protrusion. A guide projection is provided so as to project more than the engagement projection in the projecting direction of the engagement projection, and the tip end of the guide projection is in sliding contact with the engagement portion of the mating member. An inclined portion that guides the engaging claw of the engaging protrusion to engage with the engaging portion is provided, and the inclined portion is provided at a portion of the guiding protrusion that faces the engaging portion of the mating member. An abutment blocker that is formed at a position retracted from the engaging claw of the engaging projection to the side opposite to the engaging portion and prevents the protruding body of the engaging projection from abutting on the engaging portion of the mating member. Part made of resin, characterized by being provided.