JP6395486B2 - Instrument panel assembly structure - Google Patents

Description

  The present invention relates to an instrument panel assembly structure in which a cover member is assembled to an instrument panel body at a portion facing an occupant.

For example, as shown in FIG. 4 , an instrument panel 50 of a conventional automobile includes an instrument panel main body 51 on the front side of the vehicle and a rear side of the instrument panel main body 51, and faces the occupant. And instrument pads 52 and 53 which are cover members on the passenger seat side, and lower covers 54 and 55 disposed on the lower side of the instrument pad 52.

  Each pad 52, 53 is formed by resin molding with a plurality of projecting pieces extending forward of the vehicle on the front end side, and through holes are formed through which the clips are inserted, and the instrument panel body. Similar insertion holes are formed on the 51 side, and the pads 52 and 53 are assembled to the instrument panel main body 51 by inserting clips into both the insertion holes (see Patent Document 1).

Japanese Patent Laying-Open No. 2004-299417 (see paragraphs 0013-0016 and FIGS. 1 and 3)

  However, when a frontal collision occurs, for example, the passenger on the passenger seat side moves forward due to the impact of the collision, and the knee (lower limb part) of the passenger on the passenger seat hits the instrument pad 53 to lower the lower end of the instrument pad 53. When the portion is pressed, the lower end portion of the instrument pad 53 is pushed forward, so that a large tensile load is applied to the upper end portion of the instrument pad 53, and the insertion of the tongue piece through which the clip is inserted due to this load. The periphery of the hole breaks, and the upper end of the instrument pad 53 is inadvertently rotated rearward in the vicinity of the head of the occupant bent forward due to the impact, so that the upper end of the instrument pad 53 is rotated. There is a risk of contact.

  This is because during resin molding, the resin flows on both sides of the insertion hole of the mold and merges at the edge portions of the tongue pieces, and the resin is bonded to each other by cooling at the merged portions from both sides. Because the tongue piece edge is usually short, the adhesive strength at this merged portion becomes weak, and the load resistance of the resin that flows at both sides of the insertion hole and merges at the edge of the tongue piece due to the tensile load described above at the time of collision There is a problem that it is low and is easy to break.

  An object of the present invention is to enable a cover member to be maintained in an assembled state on an instrument panel body without breaking a tongue piece of the cover member with a simple configuration even when a frontal collision occurs.

In order to achieve the above-described object, the instrument panel assembly structure of the present invention includes an instrument panel assembly structure in which a cover member is assembled to an instrument panel body at a portion facing an occupant. the instrument panel body, without a fastening structure between the insertion hole through which the tongue and the tongue piece, the tongue is approximately the instrument panel main body by resin molding are formed to extend forwardly to said cover member A shaft portion of a clip that is positioned in parallel and that fixes the cover member and the instrument panel main body has an opening that is fitted in a direction substantially perpendicular to the tongue piece and the instrument panel main body, and the opening The length from the opening edge of the opening to the tip is longer than the length from the opening edge of the opening to the end in the vehicle width direction. It is set to (claim 1).

  Moreover, it is good to provide the fitting nail | claw which fits in the fitting hole of the said instrument panel main body formed in the said cover member, and the said tongue piece is good to be formed longer than the said fitting claw (Claim 2). .

According to the invention according to claim 1, extending a tongue forming a fastening structure between the cover member and Lee Nsu Torr instrument panel body, so as to be positioned approximately parallel to the instrument panel main body, the front cover member by resin molding An opening formed in the tongue piece, in which the shaft portion of the clip that is formed to fix the cover member and the instrument panel main body is fitted from the direction almost perpendicular to the tongue piece and the instrument panel main body, is formed. Since the length from the opening edge to the tip of the opening is longer than the length from the opening edge of the opening to the end in the vehicle width direction, the resin flows on both sides of the opening portion of the mold during resin molding. Even if the location where the resin merges from the opening edge and the resin merges from both sides is bonded when the resin is cooled, the distance from the opening edge to the tip of the opening where the resin merges is width Because it is longer than the end in the direction, it is possible to improve the tensile load resistance from the opening edge of the opening of the tongue piece to the tip portion, and the cover member does not break the tongue piece with a simple structure. The member can be maintained in a state assembled to the instrument panel body.

  Moreover, according to the invention which concerns on Claim 2, when the fitting nail | claw which fits into the fitting hole of an instrument panel main body is formed in the cover member, a tongue piece is formed longer than a fitting claw. Thus, since the tongue piece serves as a guide for the fitting claw, the fitting claw can be easily fitted into the fitting hole.

It is a partial cutaway side view of one embodiment of the instrument panel assembling structure according to the present invention. It is a top view of the tongue piece in FIG. It is a top view of the conventional tongue piece for a comparison. It is a perspective view around the conventional instrument panel.

  An embodiment of an instrument panel assembly structure according to the present invention will be described in detail with reference to FIGS. 1 to 3. The front, rear, left, and right in the present embodiment mean front, rear, left, and right when viewed in a seated state.

  As shown in FIGS. 1 and 2, the instrument panel assembly structure in the present embodiment is assembled with a cover member 2 formed by resin molding at a lower position on the passenger seat side of the instrument panel body 1. The cover member 2 is disposed in front of the passenger's knee in the passenger seat. In FIG. 1, the outer portion of the instrument panel body 1 is not shown, and the inner portion is shown.

As shown in FIG. 1, the cover member 2 and the instrument panel main body 1 include a tongue piece 4 that extends forward substantially in the center of the upper end of the cover member 2 and is integrally formed with the instrument panel main body 1. In addition to the fastening structure with the insertion hole 6 through which the formed tongue piece 4 is passed, a fitting claw (not shown) shorter than the tongue piece 4 integrally formed by extending to the left and right of the upper end portion of the cover member 2 And the fastening structure with the fitting hole (not shown) which lets the fitting nail | claw formed in the instrument panel main body 1 pass is comprised. At this time, since the tongue piece 4 is formed longer than the fitting claw, the tongue piece 4 serves as a guide for the fitting claw so that the fitting claw can be easily fitted into the fitting hole. It has become.

Further, claws fitting beauty tongue 4 Oyo is integrally formed by resin molding of the cover member 2, openings clip 7 tongue 4 fixes the cover member 2 and the instrument panel body 1 is fitted As shown in FIG. 2, the length L1 from the front end edge of the through hole 8 to the front end of the tongue piece 4 is from the right end edge (or left end edge) of the through hole 8 as shown in FIG. The length is set to be longer than the length L2 of the tongue piece 4 to the right end (or left end) (in the vehicle width direction). Note that the clip 7 has a shaft portion 7a and a flange portion 7b. At the position near the shaft portion 7a of the flange portion 7b, the clip 7 contracts when inserted into the through hole 8, and expands outward after the insertion. An expansion / contraction piece 7c is formed. Also, a circle with a one-dot chain line in FIG. 2 represents a necessary seating surface of the clip 7.

  Thus, the length L1 from the front end edge of the through-hole 8 of the tongue piece 4 to the front end of the tongue piece 4 is changed from the right end edge (or left end edge) of the through-hole 8 to the right end (in the vehicle width direction) of the tongue piece 4. By making it longer than the length L2 to the part (or left end part), at the time of resin molding, the resin flows on both sides of the through-hole 8 part of the mold and merges at the front end from the front end edge of the through-hole 8, Adhesive strength when the resin is bonded by cooling at the joining point is improved, and a length L (= L2) from the front end edge of the through hole 8 of the tongue piece 4 to the front end of the tongue piece 4 is increased as shown in FIG. The through-hole of the tongue piece 4 is equal to the length L from the right end edge (or left end edge) of the through-hole 8 to the right end part (or left end part) of the tongue piece 4 (in the vehicle width direction). The tensile load resistance of the front end portion from the front end edge 8 to the front end portion is improved. In addition, the one-dot chain line circle in FIG.

  Then, by extending the length L from the front end edge of the through-hole 8 of the tongue piece 4 shown in FIG. 3 to the front end of the tongue piece 4 by, for example, 5 mm, the tensile load resistance of the front end portion of the tongue piece 4 is increased. It was experimentally verified that the power was improved from 150N to 300N.

  Therefore, according to the above-described embodiment, the length L1 from the front end edge of the through-hole 8 of the tongue piece 4 to the front end of the tongue piece 4 is changed from the right end edge (or left end edge) of the through-hole 8 to ( Since it is longer than the length L2 up to the right end (or left end) in the vehicle width direction, it is possible to improve the tensile load resistance of the front end portion from the front end edge to the front end portion of the through hole 8 of the tongue piece 4, Even if the lower end portion of the cover member 2 is pushed forward by the occupant's knee due to a frontal collision, the front end portion of the tongue piece 4 can be prevented from breaking through the through-hole 8, and the cover member 2 can be configured with a simple configuration. It can be maintained in a state assembled to the instrument panel body 1.

  Further, since the tongue piece 4 is made longer than the fitting claw on the cover member 2 side that fits into the fitting hole of the instrument panel main body 1, the tongue piece 4 serves as a guide for the fitting claw. The fitting into the fitting hole can be easily performed, and the efficiency of the assembling work can be improved.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, an example in which only one tongue piece 4 is formed on the cover member 2 has been described, but two or more tongue pieces 4 may be formed on the cover member 2.

  Further, the opening of the tongue piece 4 is not limited to the circular through hole 8 described above.

DESCRIPTION OF SYMBOLS 1 ... Instrument panel main body 2 ... Cover member 4 ... Tongue piece 6 ... Insertion hole 7 ... Clip 8 ... Through-hole (opening part)

Claims (2)

In the instrument panel assembly structure in which the cover member is assembled to the instrument panel body on the part facing the occupant,
The cover member and the instrument panel main body have a fastening structure with a tongue piece and an insertion hole through which the tongue piece passes,
The tongue piece is formed by resin molding so as to extend forward on the cover member, and is positioned substantially in parallel with the instrument panel main body. A clip shaft for fixing the cover member and the instrument panel main body is provided. An opening that is fitted in a direction substantially perpendicular to the tongue and the instrument panel body ;
An instrument panel assembly structure, wherein a length from an opening edge of the opening to a tip is longer than a length from the opening edge of the opening to an end in the vehicle width direction.   2. The fitting member according to claim 1, further comprising a fitting claw formed on the cover member and fitted in a fitting hole of the instrument panel main body, wherein the tongue piece is formed longer than the fitting claw. Instrument panel assembly structure described.

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