JP2009269578A - Separation preventing structure for car accessory component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a separation preventing structure for a car accessory component capable of suppressing removal of a locking member and separation of components accompanying the removal when impact load is applied while maintaining a good assembly property with a simple configuration. <P>SOLUTION: In the separation preventing structure for an accessory component (2) assembled by being locked by the locking member (21) at a surface side of an interior component (1) disposed inside a cabin, a separation preventing piece (22) projecting in parallel to an assembly direction of the locking member is integrated at a rear surface side of an edge part of the accessory component. An opening (12) capable of inserting the separation preventing piece is bored at a portion corresponding to the interior component. In an assembled state of the accessory component, a base of the separation preventing piece is made to abut an edge (12a) of the opening positioned at an edge end side of the accessory component. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a structure for preventing a decorative part from being detached from an interior part in a vehicle interior, and more specifically, an impact load is applied to a decorative part assembled with a locking member on the surface side of the interior part. The present invention relates to a structure for preventing the locking member from coming off when it acts.

  Various interior decorations such as instrument panels are installed on the surface side of interior parts installed in the vehicle compartment to cover the mounting parts and surroundings of functional parts and improve the appearance by changing the texture and color tone. The component is mounted with locking of a locking member (such as a locking claw or a clip). For example, in Patent Document 1, a frame-shaped decorative part that covers the periphery of an audio device or an air conditioning operation panel is assembled on the surface side of the instrument panel with engagement of an engaging claw.

  Such a decorative part is generally formed of a resin molded product, and the rigidity and assembly rigidity of the part itself are appropriately controlled based on the knowledge of occupant protection during a collision or the like. Although a fastening member such as a screw is also used, assembling performance decreases as the number of fastening points increases. Therefore, instead of keeping the fastening portion to the minimum necessary, a plurality of locking members and engaging portions are provided along the peripheral edge of the decorative part so that a desired assembly strength can be obtained.

  However, in decorative parts that are installed over a relatively wide range of interior parts, in the hitting test that verifies the behavior when an occupant or luggage collides with the surface, the engaging claws come off due to elastic deformation due to impact, and the decorative parts There are cases of falling off. In the test, a sphere that mimics the head of an occupant is used, so even if it does not completely reflect the complex behavior at the time of actual collision, if the decorative part falls off, The mounting surface and the mounting surface of the interior parts with unevenness are exposed, which may increase the risk of secondary collision.

  As a measure for preventing the falling off of the decorative parts, Patent Document 2 discloses that the decorative parts (finishers) mounted on both sides of the center console of the instrument panel are longer than a normal locking member for locking the decorative parts. An emergency locking member to be inserted deeper is provided so that when the normal locking member is removed, the locking claw (stopper portion) of the emergency locking member is locked in the engagement hole. A detached detachment prevention structure is disclosed.

  However, since the emergency locking member is configured to stop the decorative part having the momentum in the removal direction with one or two small locking claws, there is a problem that the burden on the locking claws is large. Since this emergency locking claw also needs to be inserted into the engagement hole and assembled, a large locking surface cannot be formed, and there is a possibility that the emergency locking claw will not be reliably engaged in an emergency. In Patent Document 2, a configuration in which one emergency locking claw is locked using the elasticity of a member is adopted, but the use of an elastic locking piece causes further strength reduction. In the first place, since the emergency locking member of Patent Document 2 is configured to function after the normal locking member is removed, even if the falling of the decorative parts can be prevented, the locking member is prevented or prevented from being pulled out. The effect to do is not obtained.

JP 2007-55496 A JP 2004-230969 A

  The present invention has been made in view of such a situation of the prior art, and the object thereof is to remove the locking member at the time of impact load action while maintaining a simple structure and good assembling ability. It is an object of the present invention to provide a vehicle decorative part detachment prevention structure capable of suppressing the detachment of parts associated therewith.

In order to solve the above-described problems of the prior art, the present invention is a structure for preventing a decorative part from being detached on the surface side of an interior part disposed in a vehicle compartment with a locking member. In the one provided with a separation preventing piece integrally projecting on the back side of the edge of the decorative part, and an opening formed so that the separation preventing piece can be inserted into a corresponding part of the interior part.
The separation preventing piece has a support surface that abuts on the edge of the opening located on the edge side of the decorative part and extends to the back side beyond the edge, and the support surface of the locking member It is characterized by extending in parallel with the assembly direction.

  Since this invention is comprised as mentioned above, it has the following effects.

(A) When an impact load (F) is applied from the indoor side to the surface of the decorative part to which the edge is locked or fixed, the center side of the decorative part bends in the load direction, and accordingly, the edge of the decorative part The part generates a bending moment (M1) in a direction away from the mounting surface of the interior part (this has conventionally been a factor causing the locking member to be pulled out), but protrudes from the edge back side of the decorative part. The detached separation preventing piece (22) has a rotational displacement (M2) whose tip is directed outward from the decorative part due to the bending moment (M1), and the support surface has an edge (12a) of the opening of the interior part at its base. ) And extending outwardly of the opening on the back side thereof, the removal of the locking member and the accompanying detachment of the decorative part are suppressed.

(B) That is, in the separation preventing structure of the present invention, the impact load (F) acting on the decorative part is utilized for the rotational displacement of the separation preventing piece and the pressure contact of the support surface. For this reason, the rigidity of the central part of the decorative part, where the probability that an impact load is actually applied, is moderately limited, and the decorative part is expected to undergo elastic deformation to absorb the impact, and the elastic member causes the locking member to be pulled out. The easier the decorative part is, the higher the effect of suppressing separation is obtained. Moreover, since the claw shape is not used for preventing the separation, before the locking member for locking the decorative part is pulled out, the separation preventing effect is obtained simultaneously with the input of the impact load, and there is an immediate effect.

(C) Since the support surface of the separation preventing piece only extends in parallel with the assembling direction (D) on the back side of the edge of the decorative part, the assembling property of the decorative part is hindered by the separation preventing piece. Rather, the assembling property of the decorative part can be improved by positioning and locking the locking member using the separation preventing piece extending longer than the locking member of the decorative part as a guide.

  In the present invention, the edge part of the decorative part is an edge part extending in the longitudinal direction of the decorative part, and a plurality of the separation preventing pieces are provided so as to be spaced apart in the longitudinal direction of the decorative part. In the aspect, even when the impact load on the decorative part has a stress component that causes the decorative part to rotate within the mounting surface, the rotational displacement of the decorative part and the accompanying separation can be prevented.

  In the present invention, in the aspect in which the edge portion of the decorative part is the upper edge portion of the decorative part, it is possible to reliably prevent the upper edge part having a great influence on the occupant from being detached and to have good visibility when assembled. The assembling property of the decorative part can be further improved by the separation preventing piece disposed on the upper edge.

  In the present invention, the separation preventing piece is composed of a composite of a lateral piece that is flat in the extending direction of the edge and a vertical piece that is flat in a direction intersecting the extending direction of the edge. In the aspect in which the lateral piece is located on the outermost edge side of the decorative part and constitutes the support surface, the rigidity of the separation preventing piece is improved and the area and width of the support surface are largely secured. Can be obtained, and a reliable withdrawal inhibiting effect can be obtained.

  In the present invention, the separation preventing piece is composed of a composite of a lateral piece that is flat in the extending direction of the edge and a vertical piece that is flat in a direction intersecting the extending direction of the edge. In the aspect where only the edge opposite to the edge of the decorative part is at least partially inclined, the vertical piece is an assembly of the decorative part using the inclined edge as a guide edge. Can be improved.

  In the present invention, the decorative part includes an edge part that covers the surface side of the edge part, and a back surface of the edge part is provided in a region adjacent to the vertical piece and the horizontal piece part of the decorative part. In the aspect in which the locking hole for inserting and locking the locking claw protruding on the side is drilled, the detachment prevention piece improves the rigidity of the rimming component locking hole, and the rimming component is highly assembled. The attachment strength can be obtained, and the detachment of the edging part can also be prevented.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of an instrument panel 1 (interior member) of an automobile equipped with a decorative member (2) to which the structure for preventing detachment according to the present invention is applied, as viewed from the indoor side. In the figure, in the center of the instrument panel 1, an operation panel 5 for audio, air conditioning, etc. is arranged, meters on the driver's seat side, and a glove box on the lower side of the passenger seat.

  The upper part on the passenger seat side of the instrument panel 1 is a part facing the occupant seated in the passenger seat and is required to have a high design, and at the same time, taking into account occupant protection when the occupant collides due to sudden braking, It is covered with a buffered garnish 2. The garnish 2 is composed of a soft pad molded product in which the surface side of the base material (2) made of a resin molded product is covered with a cushioning material 25 and a skin material 24 as shown in FIG. .

  At the periphery of the air conditioning outlet 4 of the garnish 2 and the lower edge 2c, the end of the skin material 24 is folded back to the back side of the base material, but the upper edge extends in the vehicle width direction along the upper surface of the instrument panel 1 In the section extending between 2a and the side edge 2b extending in the vertical direction along the operation panel 5, the edge of the skin material 24 is edged by the edge garnish 3 attached to the surface side of the substrate.

  The rimmed garnish 3 is composed of, for example, a resin-molded product with metal plating, and has a sharp texture combined with its sharp shape. The design surface of the garnish 2 having a soft texture and cushioning There is a good contrast.

  FIG. 2 is an exploded perspective view showing the assembly of the garnish 2 to the instrument panel 1. Hereinafter, the assembly of the garnish 2 and the structure for preventing the garnish 2 will be described in detail with reference to the drawings.

  In FIG. 2, the instrument panel 1 is divided into an upper panel including an upper surface portion and a lower panel disposed below the upper panel, and only the upper panel (1) is shown in FIG. 2. The upper panel of the instrument panel 1 is formed with a reverse step portion 13 (a bowl-shaped portion) extending in the vehicle width direction, and this reverse step portion 13 is opposite to the design surface of the upper surface of the instrument panel 1. A mounting surface 14 of the garnish 2 that is recessed by one step from the design surface is defined below the step portion 13.

  In the garnish 2, a plurality of locking members 21 (resin clips) projecting on the back surface side along the outer peripheral edge including the upper edge 2 a and the side edge 2 b are perforated at corresponding portions of the instrument panel 1. By being fitted and locked in the engagement hole 11, the instrument panel 1 is assembled on the surface side. In addition, the louver which comprises the air-conditioning blower outlet 4 is mounted | worn with the opening part 20 of the right end part in the figure of the garnish 2. As shown in FIG.

  The upper edge 2a and the side edge 2b of the garnish 2 are located one step deeper than the design surface (24), and the edge garnish 3 is attached using this step, but in FIG. The trimming garnish 3 is omitted. The rim garnish 3 is assembled by engaging and locking a plurality of locking claws 31 (described later) projecting on the back side thereof into a plurality of engagement holes 23 formed in the upper edge 2a of the garnish 2 and the like. Attached.

  On the back side of the upper edge 2a of the garnish 2, the separation preventing pieces 22, 22 are projected in two locations apart from each other in the vehicle width direction, as a structure for preventing the garnish 2 from being assembled as described above. Openings 12 and 12 through which the separation preventing pieces 22 and 22 can be inserted are formed in corresponding portions of the instrument panel 1. Each separation preventing piece 22 is formed integrally with the base material of the garnish 2 adjacent to the engagement hole 23.

  FIG. 3 is a perspective view of one detachment prevention piece 22 as viewed from the lower side on the back surface side, and FIG. 4A is a cross-sectional view taken along the line AA. In each figure, the separation preventing piece 22 is a composite of a lateral piece 22b flat in the extending direction of the upper edge 2a and a vertical piece 22c flat in the direction intersecting the extending direction of the upper edge 2a. In the example shown in the drawing, the cross-sectional shape is such that the horizontal piece 22b and the vertical piece 22c intersect each other.

  As shown in FIG. 5, the upper end edge (22a) of the vertical piece 22c of the separation preventing piece 22 is directed from the upper end 2a of the garnish 2 to the back side, and the garnish 2 formed by the plurality of locking members 22 described above. The supporting surface 22a extending in parallel with the assembling direction D is formed. Further, the tip of the lower edge of the vertical piece 22c to which the lead line 22c is attached in FIG. 3 is inclined so that the vertical piece 22c has a tapered shape, and the horizontal piece 22b is the same. Has a tapered shape.

  A locking hole 23 for locking the locking claw 31 of the edge garnish 3 is formed in a region adjacent to the side of the vertical piece 22c of the separation preventing piece 22 and adjacent to the lower side of the horizontal piece 22b. It is installed. A claw portion 32 projects from the center of the lower surface side of the locking claw 31. As shown in FIG. 4B, a U-shaped slit 33 penetrates in the thickness direction around the claw portion 32, and the claw portion 32 surrounded by the slit 33 has the engagement hole 23. It can be elastically deformed when it is locked.

  On the other hand, the opening 12 of the instrument panel 1 through which the separation preventing piece 22 can be inserted is opened along the upper end of the mounting surface 14, and the upper edge 12 a of the opening 12 is flush with the reverse step portion 13. Has been. The opening 12 also serves as a relief shape for avoiding interference between the locking claw 31 of the rim garnish 3 and the mounting surface 14.

  Next, the effect | action based on the said embodiment is demonstrated with reference to FIG.

  As described above, the garnish 2 is fixed to the mounting surface 14 of the instrument panel 1 by the locking member 21 on the back surface side of the upper edge 2a. Therefore, the upper edge 2 a of the garnish 2 is supported on the back side at the upper end portion of the mounting surface 14. On the other hand, there is no support structure as described above in the center of the rear surface of the garnish 2, and a space 10 is formed between the mounting surface 14 of the instrument panel 1, and the space 10 includes the buffer material 25 and the skin. A shock absorbing structure is formed at a portion facing the occupant of the instrument panel 1 in combination with the cushioning property of the garnish 2 itself composed of the soft pad molded product in which the material 24 is laminated.

  When an occupant's head or the like collides with the surface (24) facing the vehicle interior 6 of the garnish 2 due to sudden braking or the like and an impact load F is input, the cushioning material 25 of the garnish 2 is first compressed and deformed. Then, the resin base material (2) is bent toward the space 10 side.

  Then, on the upper edge 2a side of the garnish 2 having a support structure on the back surface side, a bending moment M1 is generated due to the bending of the base material (2), and accordingly, the separation prevention integrally formed on the upper edge 2a of the garnish 2 is prevented. The piece 22 generates a rotational displacement M2 having a tip side upward. With such a rotational displacement M2, the base portion of the support surface 22a of the separation preventing piece 22 is pressed against the upper edge 12a of the opening 12, and the support surface 22a linearly extending to the back side thereof prevents separation. The removal of the piece 22 from the opening 12 is suppressed, the removal of the locking member 21 arranged adjacent to the upper edge 2a of the garnish 2 adjacent to the separation preventing piece 22, and the attachment surface 14 of the garnish 2 associated therewith. The withdrawal from the is prevented.

  Further, the lower edge 2c side of the garnish 2 is fixed more firmly than the upper edge 2a side with a fastening member such as a screw, or is locked by inserting a locking piece in a direction different from the upper edge 2a side. In such a case, the elastic force of the garnish 2 elastically deformed by the collision concentrates on the upper edge 2a side, and acts in the direction of M1 that separates the upper edge 2a side. However, with the rotational displacement centered on the lower edge 2c of the garnish 2, the distal end side of the separation preventing piece 22 extending to the back side of the opening 12 is rotationally displaced upward. The removal of the separation preventing piece 22 from the opening 12 is suppressed by 22a, and the removal of the locking member 21 and the separation of the garnish 2 are prevented.

  As described above, by preventing the garnish 2 from being detached, it is possible to protect the occupant at the time of the secondary collision, and of course, it is possible to secure a deployment locus of the airbag set on the passenger seat side, The performance of the passenger airbag can be maximized.

  In addition, no locking structure or the like is interposed between the separation preventing piece 22 and the opening 12, and the separation preventing piece 22 only extends linearly in parallel with the assembly direction of the locking member 21. Since the shape is simple, the assembling property is not hindered. On the contrary, the assembling property of the garnish 2 can be achieved by using the support surface 22a of the separation preventing piece 22 extended longer than the locking member 21 and the inclined lower edge (22c) as a guide edge at the time of assembling. Can be improved. In particular, since the separation preventing piece 22 is disposed along the upper edge 2a of the garnish 2, the visibility is good, and from this point, it can be suitably used as a guide edge during assembly.

  Further, since the separation preventing piece 22 has a simple structure and can be disposed adjacent to or at the same position as the engagement hole 23, almost no installation space is required, and a plurality of separation prevention pieces 22 can be installed along the longitudinal direction of the garnish 2. In addition, rotation within the mounting surface 14 can be prevented, and dropout associated therewith can also be prevented.

  Further, the periphery of the locking hole 23 that locks the locking claw 31 of the edge garnish 3 is reinforced by the vertical direction piece 22c and the horizontal direction piece 22b of the separation preventing piece 22 and the assembly rigidity of the edge garnish 3 is improved. it can. Further, since the latching claw 31 of the edge garnish 3 is protected by the separation preventing piece 22 at the time of impact, it is advantageous for preventing the edge garnish 3 from falling off.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

  For example, in the above embodiment, the case where the decorative part is the garnish 2 disposed on the passenger seat side upper part of the instrument panel 1 (interior part) has been described. The present invention can also be applied to decorative parts arranged at other parts that are sometimes expected to affect passengers.

It is the perspective view which looked at the instrument panel of the motor vehicle equipped with the garnish to which the separation prevention structure concerning the present invention is applied from the indoor side. It is the perspective view seen from the room inner side which shows the assembly | attachment to the instrument panel of the garnish which implemented the detachment | leave prevention structure concerning this invention. It is a principal part expansion perspective view which shows the detachment | leave prevention structure of embodiment of this invention. (A) is AA sectional drawing of FIG. 3 which shows the detachment | leave prevention structure of embodiment of this invention, (b) is the C direction arrow directional view. It is BB sectional drawing of FIG. 3 which shows the effect | action of the separation prevention structure of this invention embodiment.

Explanation of symbols

1 Instrument panel (interior parts)
2 Garnish (decorative parts)
2a Upper edge 3 Edge garnish 11 Engagement hole 12 Opening part 12a Upper edge 13 Reverse step part 14 Mounting surface 20 Opening part 21 Locking member 22 Detachment prevention piece 22a Support surface 22b Lateral piece 22c Vertical piece 23 Engagement Hole 24 Skin material 25 Buffer material 31 Locking claw

Claims (6)

A decorative part detachment preventing structure assembled to a front surface side of an interior part disposed in a vehicle compartment with a locking member, and integrally projecting on the rear side of the edge of the decorative part. In the thing provided with the made separation prevention piece, and the opening part pierced so that the separation prevention piece can be inserted in the corresponding part of the interior part,
The separation preventing piece has a support surface that abuts on the edge of the opening located on the edge side of the decorative part and extends to the back side beyond the edge, and the support surface of the locking member A structure for preventing detachment of a decorative part for a vehicle, characterized by extending in parallel with an assembling direction.   The edge part of the decorative part is an edge part extending in the longitudinal direction of the decorative part, and a plurality of the separation preventing pieces are protruded apart from each other in the longitudinal direction of the decorative part. The structure for preventing a vehicle decorative part from being detached according to claim 1.   The structure for preventing detachment of a decorative part for a vehicle according to claim 2, wherein the edge part of the decorative part is an upper edge part of the decorative part.   The separation preventing piece is composed of a composite of a lateral piece that is flat in the extending direction of the edge and a vertical piece that is flat in a direction intersecting the extending direction of the edge. The directional piece part is located in the outermost edge side of the said decorative component, and comprises the said support surface, The removal prevention of the decorative component for vehicles of any one of Claims 1-3 characterized by the above-mentioned. Construction.   The separation preventing piece is composed of a composite of a lateral piece that is flat in the extending direction of the edge and a vertical piece that is flat in a direction intersecting the extending direction of the edge, and 4. The vehicle according to claim 1, wherein the directional piece has a tapered shape in which only the edge opposite to the edge of the decorative part is at least partially inclined. 5. A structure to prevent decorative parts from coming off   The decorative part has an edge part that covers the surface side of the edge part, and protrudes on the back surface side of the edge part in an area adjacent to the vertical piece and the horizontal piece part of the decorative part. 6. The vehicle decorative component detachment preventing structure according to claim 4 or 5, wherein a locking hole for inserting and locking said locking claw is provided.

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