JP6391391B2 - Exterior member mounting structure - Google Patents

Description

  The present invention relates to a mounting structure for an exterior member used as, for example, a design part of an automobile.

  In automobiles and the like, there is a case where a mounting portion is integrally formed on a resin garnish (exterior member) having a design surface, a clip member is attached to the mounting portion, and the garnish is attached to a vehicle body member (fixing member) such as a pillar. .

  By the way, when resin-molding the garnish which has the said attaching part, there exists a problem that a sink mark is easy to generate | occur | produce on the design surface of this garnish, and appearance deteriorates. In order to prevent the occurrence of sink marks, for example, in Patent Document 1, an intermediate support portion 17 is provided in an opening portion 11 a formed by left and right vertical wall portions 5 and 5 and a clip seat portion 7. Thus, a structure in which the resin raw material flows smoothly to the attachment portion is disclosed.

JP 2002-21824 A

  By the way, in the structure of the above-mentioned conventional patent document 1, although the occurrence of sink marks can be suppressed, since the connection area of the intermediate support portion 17 to the clip seat portion 7 is small, for example, the strength in the direction of pulling out the clip member is low, and resin molding There is a concern that cracks starting from a so-called weld line generated at the junction of the resin materials at the time may occur. That is, in the conventional structure, when the intermediate support portion 17 is extended outward from the opening portion 11a, the connection area with the pillar trim 1 can be increased, but the inward extension has a limit because it interferes with the clip 19. After all, the connection area with the seating part 7 cannot be increased. As a result, the amount of resin raw material flowing from the intermediate support portion 17 to the clip seating portion 7 is also restricted, and a weld line is easily formed in the vicinity of the intermediate support portion 17, and cracks due to a decrease in strength are likely to occur.

  The present invention has been made in view of the above-described conventional situation, and provides a mounting structure for an exterior member capable of achieving both prevention of deterioration of appearance due to occurrence of sink marks and prevention of cracking due to strength reduction against external force. Is an issue.

The present invention has an attachment structure for an exterior member that has an attachment portion formed integrally with the exterior body, and that attaches the exterior body to the fixing member via a clip member attached to the attachment portion.
The mounting portion includes a pair of projecting wall portions projecting to the fixing member side following the exterior body, and a mounting recess in which the projecting ends of the projecting wall portions are integrally connected and the clip member is mounted. and formed connecting wall, said located on the opposite side of the mounting recess, the two projecting wall portions and a connecting wall portion and the outer body and being formed so as to close the opening formed by the connecting wall portion the a, the outer body side end of the connecting wall portion, the central portion has a connecting portion integrally connected to said outer body, between said pair of projecting wall portions and said connecting portion The portion is formed with a non-connection portion having a predetermined gap with the exterior body, and the width dimension of the connection portion is set to 1/3 to 1/2 of the opening width of the opening portion. It is characterized by being <br/>.

  According to the mounting structure according to the present invention, the connection wall portion closes the opening portion surrounded by the pair of projecting wall portions and the connecting wall portion and the exterior body, which are integrally formed so as to form a tower shape on the exterior body, Since the non-connection portion having a predetermined gap is formed between the connection wall portion of the connection wall portion to the exterior body and the pair of projecting wall portions, the following effects are obtained.

  Since a predetermined gap is provided between the connecting portion of the connecting wall portion connected to the exterior body and the protruding wall portions, it is possible to prevent the occurrence of sink marks at the corner portion and avoid deterioration in the appearance of the design surface. .

In addition, since the attachment portion is connected to the exterior body through the connection portion by the connection wall portion between the pair of protruding wall portions and the connection wall portion, the strength against external force when the exterior body is attached or detached can be increased. it can. Thereby, both the deterioration of the appearance by the sink and the strength reduction against the external force can be improved. That is, it becomes possible to control the confluence of the resin raw material that flows from the exterior body through the protruding wall portions to the connecting wall portion and the resin raw material that flows from the connecting wall portion to the connecting wall portion through the connecting portion, As a result, the weld line can be shifted from the center of the connecting wall, and the occurrence of cracks can be more reliably prevented.

And in this invention, since the connection part was formed in the center part of the exterior body side edge part of the said connection wall part, compared with the case where an intermediate support part is provided in the conventional opening part, a connection wall part, a protrusion wall part, and connection The connection area between the wall portion and the exterior main body can be increased, and it is possible to more reliably achieve both the prevention of sink marks and the prevention of strength reduction.

It is a perspective view of the front pillar part of the car by Example 1 of the present invention. It is the side view seen from the vehicle outside of the pillar garnish arrange | positioned at the said front pillar part. FIG. 3 is a cross-sectional view of the pillar garnish (a cross-sectional view taken along line III-III in FIG. 2). It is sectional drawing (IV-IV sectional view taken on the line of FIG. 2) of the attachment part of the said pillar garnish. It is a perspective view of the said attaching part. FIG. 6 is a view of the mounting portion (as viewed from an arrow a in FIG. 5 and a cross-sectional view taken along line bb in FIG. 5).

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 6 are views for explaining a mounting structure of an exterior member according to the first embodiment of the present invention. In the present embodiment, front, rear, left, and right mean front, rear, left, and right as viewed in the forward direction of the vehicle.

  In the figure, reference numeral 1 denotes a front pillar portion of an automobile. The front pillar portion 1 includes left and right front pillars 2 and 2 forming a door opening front edge portion, front doors 3 and 3 supported by the left and right front pillars 2 so as to be openable and closable, and the left , And a windshield 4 disposed between the right front pillars 2. In addition, 8 has shown the roof and 9 has shown the hood (refer FIG. 1).

  The front pillar 2 has a structure in which a square cylindrical closed cross section is formed by joining the front flange portions 2c and the rear flange portions 2d of the pillar outer 2a and the pillar inner 2b by spot welding.

  Left and right edge portions 4a of the windshield 4 are attached to the front flange portion 2c of the front pillar 2 via a seal member 5, and the front edge portion of the fixed window glass 6 is attached to the rear flange portion 2d. 6 a is attached via a seal member 7.

  A resin pillar garnish (exterior member) 10 is disposed outside the pillar outer 2a of the front pillar 2 (fixing member). A resin garnish 11 is disposed on the inner side of the pillar inner 2b (see FIGS. 3 and 4).

  The pillar garnish 10 has a vertical shape along the side edge 4a of the windshield 4 and has a front and rear length covering the side edge 4a and the front edge 6a of the fixed window glass 6. ing.

  The pillar garnish 10 includes a garnish main body (exterior main body) 14 having a design surface A, and four attachment portions 15 integrally connected to the inner surface B of the garnish main body 14 at predetermined intervals in the longitudinal direction. Have.

  The pillar garnish 10 is detachably fixed to the pillar outer 2a via clip members 16 attached to the attachment portions 15. Each mounting portion 15 is arranged so that the insertion direction c of the clip member 16 is directed in a different direction (see FIG. 2). Specifically, the upper two are set below the vehicle, the third is set rearward, and the fourth is set upward. Since each of the mounting portions 15 has a substantially similar structure, the second mounting portion from the top will be described in detail below.

  The clip member 16 includes a clip main body 17 attached to the attachment portion 15 and a fixed cylinder portion 18 to which the clip main body 17 is fixed. The fixed cylinder portion 18 is fixed by sandwiching the periphery of the mounting hole 2e formed in the pillar outer 2a.

  The clip body 17 includes a disc-shaped mounting portion 17a that is mounted in a mounting recess 15c, which will be described later, of the mounting portion 15, and a pin portion 17b that is integrally formed with the mounting portion 17a.

With the mounting portion 17a of the clip body 17 mounted on the mounting portion 15, the pin portion 17b is pushed into the fixed cylindrical portion 18, so that the lower end 18a of the fixed cylindrical portion 18 is inserted into the notched portion 17c of the pin portion 17b. Engage with elastic deformation. In this way, the pillar garnish 10 is attached to the pillar outer 2a.

  As shown mainly in FIGS. 5 and 6, the mounting portion 15 is formed on the inner surface B of the garnish main body 14 and a pair of front and rear protruding wall portions 15a and 15a that subsequently protrude toward the pillar outer 2a. A connecting wall portion 15b that integrally connects the protruding ends of the front and rear protruding wall portions 15a, a mounting recess portion 15c that is notched in the connecting wall portion 15b and in which the clip body 17 is mounted; A connecting wall formed so as to block the upper opening 15d surrounded by the front and rear protruding wall portions 15a, 15a and the connecting wall portion 15b and the garnish body 14 on the opposite side of the opening of the mounting recess 17c. Part 15e.

  The connecting portions of the front and rear protruding wall portions 15a with the garnish main body 14 are formed thinner than the other portions, thereby preventing shrinkage recesses, that is, sink marks, which occur during resin molding on the design surface A. doing.

  The mounting recess 15c is expanded to form an insertion fixing hole 15f into which the mounting portion 17a of the clip body 17 is inserted and fixed, and to form a V-shape on the opposite side of the upper opening 15d following the insertion fixing hole 15f. And a guide groove 15g for guiding the mounting portion 17a to the insertion fixing hole 15f.

  And the center part between a pair of protrusion wall parts 15a and 15a of the garnish main body 14 side edge part of the said connection wall part 15e becomes the connection part 15h connected to the said garnish main body 14, and this connection part 15h and Non-connecting portions 15 h ′ and 15 h ′ having a gap s between the projecting portions 15 a and 15 a and the garnish main body 14 are formed. The connecting portion 15h is connected to the garnish main body 14 via a thin portion 15i, thereby preventing the occurrence of sink marks.

  The connecting portion 15h is set such that the width dimension w1 thereof is about 1/3 to 1/2 of the opening width w of the opening 15d (see FIG. 6A). Specifically, the width w1 is set to 6 to 10 mm with respect to the opening width w of 20 mm.

  According to the present embodiment, the attachment portion 15 formed integrally with the garnish main body 14 is surrounded by the pair of protruding wall portions 15a and 15a and the connection wall portion 15b and the garnish main body 14 formed so as to form a tower shape. The connection wall 15e is formed so as to close the opened portion 15d, and a predetermined gap s is provided between the connection wall 15e that connects the connection wall 15e to the garnish body 14 and the garnish body 14. Since it is composed of the formed non-connection portions 15h ′ and 15h ′, the following operational effects can be obtained.

  Since the connecting wall 15e is provided with the connecting portion 15h connected to the garnish main body 14 and the non-connecting portions 15h 'and 15h' having the gap s between the garnish main body 14, the corner portion where sinking easily occurs. The occurrence of sink marks can be prevented, and deterioration of the appearance of the design surface A can be avoided.

Further, since the front and rear protruding wall portions 15a and 15a and the connecting wall portion 15b of the mounting portion 15 are connected to the garnish main body 14 by the connection wall portion 15e, the garnish main body 14 is attached to or removed from the front pillar 2. The strength against external force at the time can be increased, and as a result, it is possible to achieve both prevention of appearance deterioration due to sink and prevention of strength reduction against external force. In particular, since the pillar garnish 10 of the present embodiment is arranged on the vehicle outer side, it is easy to stand out and easily receives an external force by hand pressing.

Specifically, for example, in the case where only the front and rear protruding wall portions 15a and 15a are connected to the garnish main body 14, the resin flows to the connecting wall portion 15b via the protruding wall portions 15a and 15a during resin molding. The resin raw materials f1 and f2 join at the central portion p of the connecting wall portion 15b, and a so-called weld line is formed easily by joining the resin raw materials f1 and f2 to the central portion p. Since the width is narrowest due to the presence of the mounting recess 15c, there arises a problem that the strength is reduced.

On the other hand, in this embodiment, as shown in FIG. 5, the connecting portion 15h is connected to the resin raw materials f1 and f2 flowing from the garnish main body 14 to the connecting wall portion 15b through the front and rear protruding wall portions 15a. Since the resin raw material f3 flowing from the connecting wall portion 15e to the connecting wall portion 15b joins through, the joining point of both is shifted from the central portion p. Therefore, the well dry L resulting from the joining is connected to the connecting wall portion 15b. It will be formed in the part shifted | deviated from the said center part p, an intensity | strength improves and the improvement with respect to the quality can be aimed at.

Further, in the present embodiment, since the connection wall 15e is formed with the connection portion 15h extending in the direction between the pair of protruding wall portions 15a, 15a, an intermediate support portion is provided so that the conventional opening is crotched in and out. Compared to the case, the connection area connected from the connecting portion 15h to the connecting wall portion 15b through the connecting wall portion 15e can be controlled. That is, by appropriately setting the width dimension w1 of the connecting portion 15h, it is possible to control the weld formation position, which is the junction of the resin raw materials, and thus it is possible to set the weld at a position where cracks are unlikely to occur.

  In addition, although the said Example demonstrated the case where the pillar garnish 10 was arrange | positioned in the vehicle outer side of the front pillar 2, this invention is applicable also to the garnish 11 arrange | positioned in the vehicle inner side. Further, the exterior member of the present invention is not limited to the pillar, but can be applied to, for example, a roof garnish and a door trim.

2 Front pillar (fixing member)
10 Pillar garnish (exterior material)
14 Garnish body (exterior body)
15 mounting portion 15a protruding wall portion 15b connecting wall portion 15c mounting recess 15d opening 15e connecting wall portion 15h connecting portion 15h 'non-connecting portion 16 clip member s gap

Claims (1)

In the mounting structure of the exterior member, which has an attachment portion formed integrally with the exterior body, and the exterior body is attached to the fixing member via a clip member attached to the attachment portion.
The mounting portion includes a pair of projecting wall portions projecting to the fixing member side following the exterior body, and a mounting recess in which the projecting ends of the projecting wall portions are integrally connected and the clip member is mounted. A connecting wall portion formed on the opposite side of the mounting recess, and a connecting wall portion formed so as to close an opening surrounded by the protruding wall portions, the connecting wall portion, and the exterior body. Have
The central part of the outer wall side end of the connection wall part is a connection part integrally connected to the exterior body, and the part between the connection part and the pair of protruding wall parts is A non-connecting portion having a predetermined gap is formed between the exterior body ,
The mounting structure for an exterior member , wherein a width dimension of the connection portion is set to 1/3 to 1/2 of an opening width of the opening portion .

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