JP5673076B2 - Structure around the front pillar base of automobiles - Google Patents

Description

  The present invention relates to a structure around a front pillar base portion of an automobile, and more particularly, to a connection structure between an upper edge portion of a dash side panel and a pillar panel.

  The front part of the vehicle compartment is separated from the engine compartment by a dash panel. Dash side panels constituting the interior side of the vehicle body side wall are joined to the left and right sides of the dash panel. The lower part of the pillar panel (side body outer panel) is joined to the outside with the hinge reinforcement interposed therebetween. The upper part of the pillar panel, that is, the pillar part, extends upward beyond the upper edge part of the dash side panel and reaches the roof side (see, for example, Patent Document 1).

JP 2000-255451 A

  Since the connecting portion between the upper edge of the dash side panel and the pillar panel is located immediately in front of the driver's seat and the passenger seat, it is also an important portion in the NVH performance of the automobile, in particular, quietness (noise level reduction). . Conventionally, at the joint portion between the upper edge portion of the dash side panel and the pillar panel, the shape of the upper edge portions 721, 722, 723 of the dash side panel 72 is formed as a pillar as shown in FIG. By following the pillar portions 731 and 732 and the window opening flange portion 733 of the panel 73, or by causing the upper edge portion 823 of the dash side panel 82 to follow the shape of the lower portion 834 of the pillar panel 83 as shown in FIG. The structure which eliminated the clearance gap between members was employ | adopted.

  However, in these coupling forms, there is a problem that the shape of either one (72, 83) becomes complicated, and the weight of parts increases or the yield deteriorates. In particular, as in the example shown in FIGS. 7 and 8, in a vehicle in which triangular windows 730 and 830 are set in the front pillar portion, the lower portion (731, 732, 831, 832) of the front pillar branches into two front and rear. Therefore, this tendency becomes more remarkable.

  Further, in the coupling form shown in FIG. 8, welding between the upper edge portion 823 of the dash side panel 82 and the pillar panel 83 cannot be immediately performed due to interference with other parts 84 joined to the outer surface side of the pillar panel lower portion 834. Therefore, an opening 820 is provided in the middle of the dash side panel 82, and a welding gun (not shown) is inserted through the opening 820 to perform spot welding. Therefore, there has been a problem that a sound insulating material or the like for closing the opening 820 must be added as a separate part after the welding process.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a front pillar that is advantageous in ensuring quietness while avoiding complication of part shape and accompanying weight increase and yield deterioration. It is to provide a base peripheral structure.

In order to solve the above-described problems of the prior art, the present invention includes a dash side panel (2), a lower part (34) joined to the vehicle compartment outside of the dash side panel, and a pillar part (31, 32) extending above the dash side panel. A pillar panel (3) having a front pillar molding (4) for closing a gap between the upper edge (21) of the dash side panel and the pillar panel located outside the vehicle compartment , In the structure around the front pillar base of the automobile, which is mounted on the upper edge of the dash side panel .

  The structure around the front pillar base of the automobile according to the present invention has the following effects due to the above configuration.

  By setting the front pillar molding (4) that closes the gap between the upper edge (21) of the dash side panel (2) and the pillar panel (3, 31) located outside the vehicle compartment, the dash side panel Good sealing properties can be reliably obtained at the joint between the upper edge (21) and the pillar panel (3).

  Therefore, it is not necessary to match the panel shape of the upper edge portion (21) of the dash side panel and the pillar panel (3) in order to ensure the sealing property of the joint portion. For example, the strength of the pillar panel (3) is increased. Even if you select a three-dimensional panel shape that prioritizes performance, you can select a simple panel shape that prioritizes formability for the upper edge (21) of the dash side panel, It is possible to ensure the NVH performance of the automobile, in particular, quietness (noise level reduction) while avoiding yield deterioration.

  The front pillar molding (4) is a resin molded product, as is the case with general moldings, so that it is inexpensive and lightweight, and high dimensional accuracy can be obtained. Good adhesion to a dash side panel (2) and pillar panel (3) is obtained, and the structure for fixing and locking the front pillar molding itself, and finally the surface of the front pillar molding A structure for positioning, fixing, or locking other parts such as an interior material mounted on the top can be easily formed, and there is an advantage that the number of parts for one front pillar molding and the cost increase are more than compensated.

  In a preferred aspect of the present invention, the coupling member (5) inserted through the front pillar molding (4) and the through holes (410, 210) penetrating the upper edge (21) of the dash side panel. The front pillar molding (4) is fixed to the upper edge (21).

  In this aspect, the fixing of the front pillar molding (4) to the upper edge (21) of the dash side panel is achieved by one coupling member (5), and the assembly property of the front pillar molding (4) is good, The structure for fixing the front pillar molding (4) consists only of the through hole (210) of the upper edge (21) of the dash side panel, which is advantageous in terms of formability and manufacturing cost.

  In another preferred aspect of the present invention, the front pillar molding (4), the upper edge (21) of the dash side panel, and the through-hole (410) that penetrates the pillar panel (3, 31). , 210, 310), the front pillar molding (4) is fixed to the upper edge (21) by the coupling member (5) inserted through the upper edge (21) of the dash side panel. The pillar panels (3, 31) are coupled to each other.

  In this aspect, the fixing of the front pillar molding (4) and the mutual connection between the upper edge portion (21) of the dash side panel and the pillar panel (3, 31) are achieved by one connecting member (5). In addition, it is advantageous in terms of bond stability and hermeticity. In particular, the pillar panel (3, 31) that defines a closed cross-section cannot be provided with spot-welded welding points other than the flanges on both sides (previously connected with bolts and weld nuts). By combining the front pillar molding (4) and the common coupling member (5) at the same time, the addition of the front pillar molding does not cause a substantial increase in assembly man-hours. The coupling force is applied over a wide range of the joint portion between the upper edge (21) of the dash side panel and the pillar panel (3) by being coupled through the front pillar molding (4) having a large area. This is advantageous.

  In a further preferred aspect of the present invention, the gap between the upper edge (21) of the dash side panel and the pillar panel (3, 31) is provided on the back side of the front pillar molding (4). Engagement pieces (48) to be engaged are projected in a direction intersecting with the insertion direction of the coupling member (5).

  In this aspect, the front pillar molding (4) is locked to the upper edge (21) of the dash side panel by the engaging piece (48), so that a force in the removal direction acts on the coupling member (5). Therefore, it is advantageous when a clip of the type that is pushed into the through hole and locked is used as the coupling member (5). Further, when the front pillar molding (4) is assembled, the front pillar molding (4) is also temporarily fixed by the engaging piece (48) before the coupling member (5) is inserted.

  In another preferred aspect of the present invention, the pillar panel includes a window opening (30), and the pillar portion includes a front pillar portion (31) positioned in front of the window opening, and the window opening. A rear pillar portion (32) located rearward, and the upper edge portion of the dash side panel includes an upper edge front portion (21) along the front pillar portion and an upper edge along the rear pillar portion. A rear portion (22) and an upper edge intermediate portion (23) extending along the lower side of the window opening between the upper edge front portion and the upper edge rear portion, and at the upper edge intermediate portion, The upper edge front portion (21) is welded to the window opening flange portion (33) forming the lower side of the window opening of the pillar panel, and the first edge portion (21a) extending substantially in the vehicle front-rear direction; A second edge (21b) extending from the rear end substantially outward in the vehicle width direction to reach the window opening flange, The front pillar molding (4) is formed in a substantially L shape with a first portion (41) corresponding to the first edge and a second portion (42) corresponding to the second edge. .

  In the vehicle body in which a window is set in the front pillar, the upper edge (21, 22, 23) of the dash side panel overlaps the two front and rear pillars (31, 32) of the pillar panel (3), so the panel shape is complicated. (FIG. 7), there is a problem that an opening for spot welding is required (FIG. 8), but the front pillar molding (4) is formed on the front pillar portion (31) having a large cross-sectional shape and a large inclination and bending. ) Is set, it is possible to simplify the panel shape of the upper edge portion of the dash side panel and to simplify the welding process. Moreover, there exists an advantage which the intensity | strength and adhesiveness of front pillar molding itself improve because a front pillar molding (4) is formed in the substantially L shape corresponding to a front pillar part (31).

It is the perspective view seen from the vehicle interior back which shows the front pillar base peripheral structure of the car concerning the present invention. It is an expansion perspective view which shows a front pillar molding. It is the perspective view seen from the vehicle interior back which shows attachment of the front pillar molding in the front pillar base peripheral structure of the car concerning the present invention. It is AA sectional drawing of FIG. 1 which shows 1st Embodiment (a) and 2nd Embodiment (b) of this invention. It is the principal part perspective view which looked at the upper edge part of the dash side panel which mounted | wore with the front pillar molding from the back side in the state which omitted the pillar panel. It is the principal part perspective view which looked at the upper edge part of the dash side panel which mounted | wore with the front pillar molding from diagonally upwards in the state which omitted the pillar panel. It is the perspective view seen from the vehicle interior back which shows the comparative example of the combined structure of a dash side panel and a pillar panel. They are the perspective view (a) seen from the vehicle interior back which shows the other comparative example of the combined structure of a dash side panel and a pillar panel, and its BB sectional drawing (b).

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 3 are perspective views of the vicinity of a front pillar base portion of an automobile from which interior materials and the like are removed as viewed from the rear of the vehicle interior, that is, from the driver's seat side. In each figure, the front part of the passenger compartment of the automobile is partitioned from the engine compartment side by a dash panel 1, and the dash side panel 2 constituting the interior side surface of the vehicle body side wall is joined to the left and right sides of the dash panel 1. . In addition, when a cowl top panel is joined to the upper part of the dash panel 1, the dash side panel 2 may be called a cowl side panel.

  The dash side panel 2 is joined to the dash panel 1 at an edge on the front side, and a flange portion 25 constituting a part of the door opening flange is formed at the edge on the rear side. Furthermore, the upper edge portions (21, 22, 23) of the dash side panel 2 are an intermediate portion 23 (window opening flange portion) that forms the lower side of the window opening 30, an upper edge front portion 21 positioned in front thereof, and a rear portion. It consists of three parts, the upper edge rear part 22 located.

  Among these, the intermediate portion 23 is outward in the vehicle width direction with respect to the central portion of the dash side panel 2 and the flange portion 25 by the three-dimensional cross-sectional shape (31b) of the front pillar (the front pillar portion 31 described later). Accordingly, as shown in FIG. 3, the upper edge front portion 21 extends outwardly in the vehicle width direction from the first edge portion 21a extending in the vehicle longitudinal direction and the rear end thereof. The upper edge rear portion 22 extends from the upper end of the flange portion 25 to the front upper side and extends outward in the vehicle width direction at the upper end side of the intermediate portion 23 to reach the front end of the intermediate portion 23. It reaches the rear end.

  The lower part 34 (33, 35) of the pillar panel 3 having substantially the same outer shape is joined to the outdoor side of the dash side panel 2 with a hinge reinforcement (not shown) interposed therebetween. The upper portion of the pillar panel 3 is a front pillar portion 31 and a rear pillar portion 32 that extend upward beyond the upper edges (21, 22) of the dash side panel 2, and a window opening 30 is formed between them. ing. The front pillar portion 31 and the rear pillar portion 32 are integrated at an upper portion (not shown) and are continuous with the roof side.

  The front pillar portion 31 is formed in a substantially L-shaped cross section including a side surface 31a and a rear surface 31b continuous to the rear side, and the side surface 31a is formed on the first edge portion 21a in the upper edge front portion 21 of the dash side panel 2. Adjacent and the rear surface 31b is adjacent to the second edge 21b. However, the side surface 31a and the rear surface 31b are not completely in contact with the first edge portion 21a and the second edge portion 21b of the upper edge front portion 21 of the dash side panel, but are shown in FIGS. 3 and 4A. In 1st Embodiment, the clearance gap 21c is formed in the adjacent area whole region including the swelling part 31d of the side surface 31a which is closest to the level | step-difference part 21d (bulging part to the vehicle compartment outer side) of the 1st edge part 21a. Alternatively, in the second embodiment shown in FIG. 4B, the bulged portion 31d of the side surface 31a is brought into contact with the stepped portion 21d of the first edge portion 21a, and a gap 21c is formed in the other portion. I am doing so.

  The front and rear pillar portions 31 and 32 of the pillar panel 3 extend upward from the lower portion 34 of the pillar panel 3 in the three-dimensional cross section as described above, and the front pillar portion 31 corresponds to the inclination of the front window. Thus, the rear surface 31b of the front pillar portion 31 located at the front lower corner of the window opening 30 is bent at a slightly acute angle and extends upward. The upper edge front portion 21 of the dash side panel 2 also has a three-dimensional cross-sectional shape corresponding to the base portion of the front pillar portion 31 and rises frontward and upward. In particular, the second edge portion 21b is rearward of the front pillar portion 31. In order to make it follow completely, a bigger bending | flexion is required, In that case, a moldability will deteriorate.

  Therefore, as shown in FIG. 3, the second edge portion 21b of the dash side panel 2 is terminated at an inclination angle that extends forward and upward toward the rear surface 31b of the front pillar portion 31, so that the gap 21c remains. However, the deterioration of formability is avoided, and the side surface 31a of the front pillar portion 31 and the first edge portion 21a of the upper edge front portion 21 of the dash side panel also simplify the panel shape by leaving the gap 21c. In order to close the gap 21c and ensure NVH performance, the front pillar molding 4 is set along the boundary portion between the base portion of the front pillar portion 31 and the upper edge front portion 21 of the dash side panel 2.

  The front pillar molding 4 is formed of a resin molded product, and includes a first portion 41 corresponding to the first edge portion 21a of the upper edge front portion 21 of the dash side panel and the side surface 31a of the front pillar portion 31, and the front edge of the upper side of the dash side panel. 2 and a second portion 42 corresponding to the rear surface 31b of the front pillar portion 31, and formed in a substantially L shape in plan view as shown in FIGS. Has been.

  The first portion 41 of the front pillar molding 4 is formed on the side wall portion 43 corresponding to the first edge portion 21a of the upper edge front portion 21 of the dash side panel and on the side surface 31a of the front pillar portion 31 through the stepped portion 47 from the upper side. A first projecting portion 45 projecting toward the center, and a through hole 410 is provided substantially at the center of the side wall portion 43, and a seat surface in which the head of the clip 5 described later is accommodated around the through hole 410. Is formed. In addition, reinforcing ribs 43 a are integrally formed on the side wall 43 in a lattice shape, and among these, the reinforcing ribs in the vertical direction reach the base of the first overhanging portion 45 through the stepped portion 47. In addition, a front end edge 45 a that is curved toward the indoor side is formed at the front end of the first overhang portion 45.

  The second portion 42 of the front pillar molding 4 protrudes upward from the rear wall portion 44 corresponding to the second edge portion 21b of the upper edge front portion 21 of the dash side panel and from the upper side toward the rear surface 31b of the front pillar portion 31. The second overhanging portion 46 and the rear wall portion 44 on the back surface side, as shown in FIG. 5, projecting forward obliquely downward along the inclination angle of the rear surface 31 b of the front pillar portion 31. A piece 48 is formed.

  When the front pillar molding 4 is attached to the vehicle body, the engaging piece 48 of the second portion 42 is formed with a gap between the second edge portion 21b of the upper edge front portion 21 of the dash side panel and the rear surface 31b of the front pillar portion 31. 21c, the rear wall portion 44 is overlapped with the second edge portion 21b, and the step portion 47 of the first portion 41 is covered on the first edge portion 21a of the front edge portion 21 of the upper edge of the dash side panel. In the first embodiment shown in FIG. 4A with the side wall portion 43 overlapped with the first edge portion 21a, the step of the dash side panel upper edge front portion 21 is pushed by pushing the tip portion of the clip 5 from the through hole 410. It latches in the state penetrated to the through-hole 210 of the part 21d.

  Thereby, the front pillar molding 4 is fixed in a state of being in close contact with the upper edge front portion 21 of the dash side panel 2, and the overhang portions 45 and 46 and the front end edge 45 a of the front pillar molding 4 are in close contact with the front pillar portion 31. As a result, the gap 21c is closed. At this time, the upper edge front portion 21 of the dash side panel 2 and the front pillar portion are formed by a large-diameter through hole 310 (escape hole) formed in the bulging portion 31d of the front pillar portion 31 located behind the through hole 210. Even when the gap 21c with respect to 31 is relatively narrow, interference between the tip of the clip 5 and the front pillar portion 31 (the bulging portion 31d) is prevented. Since the front pillar molding 4 is made of a resin molded product, it is inexpensive and lightweight, has high dimensional accuracy, has good adhesion to the dash side panel 2 made of steel plate and the front pillar portion 31, and The painted surface is not damaged.

  In addition to the fact that the mounting operation itself for pushing and locking the clip 5 is simple, the front pillar molding 4 is attached to the upper edge front portion 21 of the dash side panel 2 by the stepped portion 47 and the engaging piece 48 during the mounting operation. Since it is temporarily fixed, the installation work becomes easier. An engaging piece (such as a rib or a protrusion) that engages with the back surface of the front edge 21 of the upper edge of the dash side panel may be provided on the lower surface of the stepped portion 47. Since these engaging pieces project and project in a direction intersecting the pushing direction of the clip 5, the force acting in the pulling-out direction of the clip 5 is reduced in the attached state of the front pillar molding 4. There are advantages.

  In the second embodiment shown in FIG. 4B, the tip of the clip 5 is pushed from the through hole 410, and the stepped portion 21d of the upper edge front portion 21 of the dash side panel and the bulging portion 31d of the front pillar portion 31 are formed. The front pillar molding 4 is fixed in a state of being in close contact with the upper edge front portion 21 and the front pillar portion 31 of the dash side panel 2 by being locked in a state of being penetrated through the through holes 210 and 310, and the gap 21c is closed. At the same time, the upper edge front portion 21 (stepped portion 21 d) and the front pillar portion 31 (bulged portion 31 d) of the dash side panel 2 are joined by the clip 5.

  In the second embodiment, the dimensional accuracy is such that the bulging portion 31d of the front pillar portion 31 and the stepped portion 21d of the upper edge front portion 21 of the dash side panel are in contact with each other, and the through holes 210 and 310 are coincident with each other. However, the contact between the convex surfaces (the bulged portion 31d and the stepped portion 21d) is easier than when the edges (21a, 31a) of the panels (21, 31) are followed. Since dimensional accuracy is obtained, the moldability is not greatly affected. Further, any one of the through holes 210 and 310 may be a loose hole so that the error is absorbed.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to said each embodiment, Based on the technical idea of this invention, a various deformation | transformation and change are further possible.

  For example, in each of the above embodiments, the case where the push-type clip 5 is used for the coupling member of the front pillar molding 4 has been shown. However, the through-hole 410, 210, 310 is used as a deformed hole, and a clip of the push-type method is used. You can also use a fast turn screw or screw. Further, as in the prior art, a bolt and a weld nut can be used for the coupling member.

  In each of the above embodiments, the case where the front pillar molding 4 is attached to the base of the front pillar portion 31 of the front pillar having the window opening 33 and the front and rear pillar portions 31 and 32 has been described. A front pillar molding can be installed at the base of one pillar. The front pillar molding can also be installed at the base of the rear pillar portion 32 (the upper edge rear portion 22 of the dash side panel 2). However, since the rear pillar portion 32 has a smaller cross-sectional shape than the front pillar portion 31 and has a gentle bending angle and sufficient adhesion can be obtained by press molding, it is not set in each of the above embodiments.

1 Dash Panel 2 Dash Side Panel 3 Pillar Panel 4 Front Pillar Mall 5 Clip (Coupling Member)
21 upper edge front portion 21a first edge portion 21b second edge portion 21c gap 21d step portion (recessed portion)
22 Upper edge rear part 23 Upper edge middle part (window opening flange part)
25, 35 Door opening flange portion 30 Window opening 31 Front pillar portion 31a Side surface 31b Rear surface 31d Swelling portion 32 Rear pillar portion 33 Window opening flange portion 34 Pillar panel lower portion 41 First portion 42 Second portion 43 Side wall portion 44 Rear wall portion 45 1st overhanging part 46 2nd overhanging part 47 Step part 48 Engagement piece 210,310,410 Through-hole

Claims (5)

A dash side panel, and a pillar panel having a lower portion joined to the outside of the vehicle compartment of the dash side panel and a pillar portion extending above the dash side panel, and located on the outer edge of the dash side panel and the outside of the vehicle compartment A front pillar base peripheral structure of an automobile , wherein a front pillar molding that closes a gap between the pillar panel and the pillar panel is attached to an upper edge portion of the dash side panel .   2. The front of an automobile according to claim 1, wherein the front pillar molding is fixed to the upper edge portion by a coupling member that is inserted through a through hole that penetrates the upper edge portion of the front pillar molding and the dash side panel. Structure around the pillar base.   The front pillar molding is fixed to the upper edge by the front pillar molding, the upper edge portion of the dash side panel, and a coupling member inserted through a through-hole penetrating the pillar panel, and the dash The front pillar base peripheral structure of an automobile according to claim 1, wherein the upper edge portion of the side panel and the pillar panel are coupled to each other.   An engaging piece that engages with the gap between the upper edge of the dash side panel and the pillar panel is provided on the back side of the front pillar molding so as to intersect with the insertion direction of the coupling member. The structure around the front pillar base of an automobile according to claim 2 or 3. The pillar panel has a window opening, and the pillar portion includes a front pillar portion positioned in front of the window opening and a rear pillar portion positioned in the rear of the window opening, and the upper side of the dash side panel. The edge is along the lower edge of the window opening between the upper edge front part along the front pillar part, the upper edge rear part along the rear pillar part, and the upper edge front part and the upper edge rear part. An upper edge intermediate portion extending at the upper edge intermediate portion, and welded and joined to the window opening flange portion forming the lower side of the window opening of the pillar panel at the upper edge intermediate portion. A first edge extending in the direction and a second edge extending substantially outward in the vehicle width direction from the rear end to the window opening flange, and the front pillar molding corresponds to the first edge The first portion and the second portion corresponding to the second edge are formed in a substantially L shape. That the front pillar base structure around an automobile according to claim 4.

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