JP2011121480A - Bracket and vehicle front structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bracket and a vehicle front structure for improving durability. <P>SOLUTION: This bracket 20 for connecting a cowl front panel to a front suspension tower 40, is constituted of a first installation part 21, a second installation part 22 and an intermediate part 23 connecting the first installation part 21 to the second installation part 22. The first installation part 21 and second installation part 22 are constituted of bottom parts 211 and 221 installed on an upper surface 41 of the front suspension tower 40, wall parts 212 and 222 rising from the edge of the bottom parts 211 and 221 and upper parts 213 and 223 extending from the edge of the wall parts 212 and 222 and installing the cowl front panel, and the wall parts 212 and 222 have first wall parts 212a and 222a and second wall parts 212b and 222b, and constitute a corner part of the first wall part 212a and 222a and the second wall parts 212b and 222b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bracket for connecting a cowl front panel to a front suspension tower, and a vehicle front structure using the bracket.

  FIG. 6 is an exploded perspective view of a conventional vehicle front structure 1A. The vehicle front structure 1 </ b> A includes a sheet metal cowl front panel 100. The cowl front panel 100 is a member that supports a resin cowl louver 110 and a wiper motor (not shown). In FIG. 6, the display around the front suspension tower on the left side of the vehicle is omitted.

  The left and right ends of the cowl front panel 100 are connected to the front upper member 30 and the front suspension tower 40 via two brackets (hereinafter referred to as a first bracket and a second bracket), respectively. The left and right ends of the cowl front panel 100 are provided with portions (hereinafter referred to as point P1 and point P2, respectively) where the first bracket and the second bracket are connected at a distance in the vehicle width direction. Yes. Specifically, the first bracket 10 extending from the front upper member 30 to the engine room side is connected to the point P1 on the outer side in the vehicle width direction as shown in FIG. The second bracket 20A attached to the upper surface 41 of the front suspension tower 40 shown in FIG. 7 is connected to the point P2 at a position away from the point P1 toward the intermediate position C1 in the longitudinal direction of the cowl front panel 100. In addition, the 1st bracket 10 is not represented in FIG.

  The first bracket 10 extends from the front upper member 30 to a position above the upper surface 41 of the suspension tower 40, and a tip portion of the first bracket 10 is bolted to a point P 1 of the cowl front panel 100. The first bracket 10 supports the cowl front panel 100 in a non-contact manner with the upper surface 41 of the suspension tower 40, that is, with the end of the cowl front panel 100 floating from the upper surface 41 of the suspension tower 40.

  FIG. 8 is a perspective view showing the second bracket 20 </ b> A attached to the upper surface 41 of the right suspension tower 40. The conventional second bracket 20 </ b> A extends upward from the upper surface 41 of the suspension tower 40, and a tip portion thereof is bolted at a point P <b> 2 of the cowl front panel 100.

  As shown in FIG. 8, the second bracket 20A includes a suspension attachment portion 21A attached to the upper surface 41 of the suspension tower 40, and a cowl front panel attachment portion 22A provided at an end of the suspension attachment portion 21A. Has been.

  The suspension attachment portion 21A is formed in an arc shape so as to be disposed along the shock absorber attachment opening 42 (see FIG. 8), and has bolt holes 23A and 24A for inserting bolts at both ends thereof.

  Also on the upper surface 41 of the suspension tower 40, three bolt holes are formed at intervals of 120 degrees around the opening 42, one from the opening 42 to the suspension tower upper surface region on the vehicle front side (A1 in FIG. 8). One in the suspension tower upper surface area on the vehicle rear side from the position A1 and from the opening 42 on the engine room side (A2 in FIG. 8), and one in the suspension tower upper surface area on the outer side in the vehicle width direction from the A2 position (see FIG. 8) A3).

  Of the three bolts A1 to A3 of the suspension tower 40, bolt holes 23A and 24A at both ends of the suspension mounting portion 21A are formed corresponding to the front and inner two bolt holes (A1 and A2). The suspension mounting portion 21A is fastened together with a bolt or the like of an upper support of a shock absorber (not shown). Thus, the suspension attachment portion 21A is disposed along the edge of the opening 42 on the upper surface 41 of the suspension tower 40 so as to go from the front side to the opposite suspension tower side and to the rear side.

  FIG. 9 is an enlarged perspective view of the β region of FIG. The cowl front panel mounting portion 22A includes a wall portion 25A that rises from one end portion of the arc-shaped suspension mounting portion 21A, that is, an end portion on the rear side of the vehicle, and a cowl front that extends horizontally from the upper edge of the wall portion 25A. And an upper portion 26A to which the panel 100 is attached. A bolt hole 27A is formed in the upper portion 26A, and is bolted at a point P2 on the left and right ends of the cowl front panel 100. A bolt hole is also formed at the point P2.

  As shown in FIG. 9, the surface of the wall portion 25A is configured as a plane, and the boundary B3 (base) with the suspension mounting portion 21A is formed as a straight line, and the ridge line B4 formed between the upper portion 26A and the wall portion 25A is also formed as a straight line. Has been.

  Patent Document 1 discloses a vehicle front structure in which a cowl front panel is connected to a suspension tower by a bracket.

JP 2008-230437 A

  In the conventional second bracket 20A, there is a possibility that stress concentrates on the region of the connection portion between the wall portion 25A and the suspension mounting portion 21A, that is, the arrow γ region in FIG. Considering such stress, it is desirable to improve the durability of the second bracket 20A.

  The present invention has been made in view of the above points, and provides a bracket for connecting a cowl front panel to a front suspension tower, which has improved durability, and a vehicle front structure including the bracket. It is an object.

  In order to achieve the above object, the present invention is a bracket for connecting a cowl front panel to a front suspension tower, and connects a first mounting portion, a second mounting portion, and a first mounting portion and a second mounting portion. An intermediate portion, and the first attachment portion and the second attachment portion are a bottom portion attached to the upper surface of the front suspension tower, a wall portion rising from the edge of the bottom portion, and a cowl front extending from the edge of the wall portion. And an upper part to which the panel is attached. The wall part has a first wall part and a second wall part, and the first wall part and the second wall part form a corner part.

  The bracket of the present invention is preferably formed symmetrically with respect to a virtual plane orthogonal to the virtual line at an intermediate position of the virtual line connecting the first mounting part and the second mounting part.

  In order to achieve the above object, the present invention provides a vehicle front structure in which left and right end portions of a cowl front panel are connected to left and right front suspension towers by brackets, respectively. , A second attachment portion, and an intermediate portion connecting the first attachment portion and the second attachment portion, the first attachment portion and the second attachment portion are a bottom portion attached to the upper surface of the front suspension tower. A wall portion rising from the edge of the bottom portion, and an upper portion extending from the edge of the wall portion and attached with a cowl front panel, the wall portion having a first wall portion and a second wall portion, The one wall portion and the second wall portion form a corner portion.

  According to the bracket of the present invention, since the wall portion has a corner portion, higher durability can be provided as compared with the conventional bracket 20A (FIG. 8).

  According to the vehicle front structure of the present invention, the brackets support the end portions of the cowl front panel at two places on the left and right suspension towers, so that the rigidity on the vehicle front side can be improved. As a result, the running stability of the vehicle can be further improved.

It is a disassembled perspective view of the vehicle front part structure which concerns on embodiment of this invention. It is a fragmentary perspective view of the vehicle front part structure concerning the embodiment of the present invention. It is a perspective view which shows the 2nd bracket attached to the upper surface of the suspension tower on the right side which concerns on embodiment of this invention. FIG. 4 is an enlarged perspective view of the α region in FIG. It is a top view of the 2nd bracket concerning the embodiment of the present invention. It is a disassembled perspective view of the conventional vehicle front part structure. It is a fragmentary perspective view of the conventional vehicle front part structure. It is a perspective view which shows the 2nd bracket attached to the upper surface of the suspension tower of the right side in the conventional vehicle front part structure. FIG. 9 is an enlarged perspective view of a β region in FIG. 8.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the figure, Fr indicates the front of the vehicle, Up indicates the upper side of the vehicle, and LH indicates the left side in the lateral width direction of the vehicle. The same reference numerals are used for the same members as those in the background art.

  FIG. 1 is an exploded perspective view of a vehicle front structure 1 according to an embodiment of the present invention, and FIG. 2 is a partial perspective view of the vehicle front structure 1. In FIGS. 1 and 2, the display around the front suspension tower on the left side of the vehicle is omitted.

  The vehicle front part structure 1 includes a cowl front panel 100 made of sheet metal. The left and right ends of the cowl front panel 100 are respectively connected to the front upper member 30 and the front suspension tower via two brackets, that is, a first bracket 10 (see FIG. 2) and a second bracket 20 (see FIGS. 1 and 2). 40.

  The cowl front panel 100 is a member similar to a conventional cowl front panel (refer to the member denoted by reference numeral 100 in FIG. 6), and the first bracket 10 and the second bracket 10 are spaced from each other at the left and right end portions in the vehicle width direction. A portion (point P1, point P2) to which the bracket 20 is connected is provided.

  The cowl front panel 100 in the vehicle front structure 1 of the present embodiment is connected to two brackets, that is, the first bracket 10 and the second bracket 20 at a point P1, and is connected only to the second bracket 20 at a point P2. .

  The first bracket 10 (see FIG. 2) extends from the front upper member 30 to a position above the upper surface 41 of the suspension tower 40, and a tip portion thereof is bolted at a point P 1 of the cowl front panel 100. In the present embodiment, the second bracket 20 is fastened together with the first bracket 10 at the point P1 of the cowl front panel 100. The first bracket 10 supports the cowl front panel 100 in a non-contact manner with the upper surface 41 of the suspension tower 40, that is, in a state where the end of the cowl front panel 100 is lifted from the upper surface 41 of the suspension tower 40.

  FIG. 3 is a perspective view showing the second bracket 20 attached to the upper surface 41 of the right suspension tower 40. The second bracket 20 has two tip portions extending upward from the upper surface 41 of the suspension tower 40, and the two tip portions are bolted to points P 1 and P 2 of the cowl front panel 100.

  As shown in FIG. 3, the second bracket 20 includes a first attachment portion 21, a second attachment portion 22, and an intermediate portion 23 that connects the first attachment portion 21 and the second attachment portion 22. ing. The first attachment portion 21, the second attachment portion 22, and the intermediate portion 23 are formed as a single piece by, for example, pressing a plate-shaped steel material.

  The first attachment portion 21 is bent at, for example, 90 degrees with respect to the bottom portion 211 attached to the upper surface 41 of the front suspension tower 40, the wall portion 212 rising from the edge of the bottom portion 211, and the wall portion 212 from the edge of the wall portion 212. The upper portion 213 extends in a direction opposite to the bottom portion 211 (for example, horizontally in the engine room) and is connected to the cowl front panel 100. Similar to the first attachment portion 21, the second attachment portion 22 includes a bottom portion 221, a wall portion 222, and an upper portion 223.

  Bolt holes 211 a and 221 a are formed in the bottom portions 211 and 221 of the first attachment portion 21 and the second attachment portion 22 (see FIG. 5 described later). Bolt holes 213a and 223a are also formed in the upper portions 213 and 223 of the first attachment portion 21 and the second attachment portion 22 (see FIG. 5 described later).

  Also on the upper surface 41 of the suspension tower 40, three bolt holes are formed at intervals of 120 degrees around the opening 42 for attaching a shock absorber (not shown), and one from the opening 42 to the suspension tower upper surface region on the front side of the vehicle. (A1 in FIG. 3), one on the vehicle rear side from this A1 position and from the opening 42 to the suspension tower upper surface area on the engine room side (A2 in FIG. 3), the suspension on the outer side in the vehicle width direction from this A2 position One (A3 in FIG. 3) is provided in the upper surface area of the tower.

  Of the three bolt holes A1 to A3 of the suspension tower 40, the bolt holes 211a of the first mounting portion 21 and the second mounting portion 22 correspond to the two rear bolt holes (A2 and A3 in the figure). , 221a are formed. The intermediate part 23 that connects the first attachment part 21 and the second attachment part 22 is provided with two bolt holes A2 and A3 on the rear side of the suspension tower upper surface 41 and the bolt holes of the first attachment part 21 and the second attachment part 22. Lengths, shapes, dimensions, and the like are selected so that 211a and 221a correspond to each other. In the form shown in the figure, the intermediate portion 23 is formed in an arc shape so as to be disposed along the shock absorber mounting opening 42, and the first mounting portion 21 is provided at one end in the longitudinal direction thereof. The second attachment portion 22 is provided at the other end.

  FIG. 4 is an enlarged perspective view of the α region in FIG. In the 2nd bracket 20 which concerns on this embodiment, as shown in FIG. 4, the wall part 212 of the 1st attaching part 21 has a surface in the direction different from the surface direction of the 1st wall part 212a and the 1st wall part 212a. The second wall portion 212b is directed to the second wall portion 212b. The right end portion of the first wall portion 212a and the left end portion of the second wall portion 212b continuously form a corner portion R. The corner portion R extends in a streak shape from the edge of the bottom portion 211 to the edge of the upper portion 213. As a result, the boundary line B1 between the bottom portion 211 and the wall portion 212 (212a, 212b), that is, the base line has a “<” shape, and the ridgeline B2 formed by the wall portion 212 (212a, 212b) and the upper portion 213 Also presents the letter “ku”.

  Similarly to the wall portion 212 of the first attachment portion 21, the wall portion 222 of the second attachment portion 22 also has a first wall portion 222 a and a second wall whose surface is directed in a direction different from the surface direction of the second wall portion 212 a. Part 222b. The right end portion of the first wall portion 222a and the left end portion of the second wall portion 222b continuously form the corner portion R. The corner R extends in a streak shape from the edge of the bottom 221 to the edge of the upper part 223. In the present embodiment, the first wall portions 212a and 222a and the second wall portions 212b and 222b are configured as walls inclined from the vertical with respect to the bottom portions 211 and 221.

  FIG. 5 is a plan view of the second bracket 20. As shown in FIG. 5, the second bracket 20 is an imaginary line connecting the first mounting portion 21 and the second mounting portion 22 (in the example shown, each upper portion 213, It is formed symmetrically with respect to a virtual plane S orthogonal to the virtual line L at an intermediate position C of a virtual line L) connecting the bolt holes 213a and 223a of the H.223.

  The vehicle front structure 1 using the second bracket 20 configured as described above will be described using the right front suspension tower region.

  The second bracket 20 of the present embodiment is fastened to the suspension tower 40 together with a shock absorber upper support and the like (not shown) and bolts. Accordingly, the second bracket 20 is disposed on the upper surface 41 of the suspension tower 40 along the opening edge region on the vehicle rear side in the periphery of the opening 42. As shown in FIG. 3, the first mounting portion 21 and the second mounting portion 22 are provided on the upper surface 41 of the suspension tower 40 so as to be aligned along the vehicle width direction.

  The upper portion 213 of the first mounting portion 21 and the upper portion 223 of the second mounting portion 22 disposed on the outer side in the vehicle width direction are connected at the right end portion of the cowl front panel 100, that is, at points P1 and P2. Specifically, a bolt hole is formed at each of the points P1 and P2 at the right end of the cowl front panel 100, and the inner bolt hole and the bolt hole 213a of the first mounting portion 21 are bolted (FIG. 1). The outer bolt hole and the bolt hole 223a of the second mounting portion 22 are bolted (see the broken line X2 in FIG. 1). Although the 2nd attaching part 22 is abbreviate | omitted in FIG. 1, it bolts (it tightens together) with the 1st bracket 10 (refer FIG. 2). In the left front suspension tower region, the left end portion of the cowl front panel 100 is connected to the left front upper member 30 and the suspension tower 40 by the first bracket 10 and the second bracket 20 similarly to the structure of the right region. Connected.

  In this way, the cowl front panel 100 specifically covers the region behind the opening 42 in the upper surface 41 of the suspension tower 40 so that the left and right ends partially cover the upper part of the left and right suspension towers. Thus, it is provided between the left and right front upper members 30.

  Thus, since the wall parts 212 and 222 have the corner | angular part R, the 2nd bracket 20 which concerns on this embodiment can give high durability compared with the conventional 2nd bracket 20A (FIG. 8). it can.

  In addition, the second bracket is conventionally manufactured for each of the left and right suspension towers, but the second bracket 20 of the present embodiment can be shared with the left and right suspension towers 40. That is, it is not necessary to manufacture the second bracket having a different shape for each of the left and right front suspension towers 40. This eliminates the need for bracket management for each of the left and right suspension towers 40, and contributes to smooth operation during assembly.

  In the vehicle front structure 1 using the second bracket 20 according to the present embodiment, the left and right suspension towers 40, in addition to the first bracket 10, the second bracket 20 has two ends of the cowl front panel 100 at two locations. Since it supports, the rigidity of the vehicle front side can be improved. As a result, the running stability of the vehicle can be further improved.

  Although detailed above, the present invention can be implemented in various forms without departing from the spirit of the present invention.

  In the above description, the case where the first wall portion and the second wall portion constituting the wall portion constitute an inclined surface is exemplified, but these may be configured as a vertical surface. Further, one of the first wall portion and the second wall portion may be configured as an inclined surface and the other as a vertical surface. Further, the first wall portion and the second wall portion are not limited to the case where the surfaces are formed flat, but may be curved surfaces. Also in this case, a corner | angular part is comprised with a 1st wall part and a 2nd wall part.

DESCRIPTION OF SYMBOLS 1 Vehicle front part structure 10 1st bracket 20 2nd bracket 21 1st attaching part of 2nd bracket 211 Bottom part of 1st attaching part 211a Bolt hole of bottom part 212 Wall part 212a of 1st attaching part 1st wall part 212b 2nd Wall part 213 Upper part of first attachment part 213a Upper bolt hole 22 Second attachment part of second bracket 221 Bottom part of second attachment part 221a Bottom bolt hole 222 Second attachment part wall part 222a First wall part 222b First 2 Wall part 223 Upper part of second mounting part 223a Upper bolt hole 230 Middle part of second bracket 30 Front upper member 40 Suspension tower 41 Upper surface of suspension tower 42 Suspension tower opening 100 Cowl front panel L Connecting virtual line S Virtual surface R Wall angle X1, X2 Broken line

Claims (3)

A bracket that connects the cowl front panel to the front suspension tower,
A first attachment portion, a second attachment portion, and an intermediate portion connecting the first attachment portion and the second attachment portion;
The first mounting portion and the second mounting portion include a bottom portion that is attached to the upper surface of the front suspension tower, a wall portion that rises from an edge of the bottom portion, and an extension of the cowl front panel that extends from the edge of the wall portion. Composed of an upper part to be attached,
The wall portion has a first wall portion and a second wall portion,
The bracket characterized by the said 1st wall part and the said 2nd wall part comprising the corner | angular part.   2. The method according to claim 1, wherein the first attachment portion and the second attachment portion are formed symmetrically with respect to a virtual plane orthogonal to the virtual line at an intermediate position of the virtual line connecting the first attachment portion and the second attachment portion. bracket. A vehicle front structure in which left and right ends of the cowl front panel are respectively connected to left and right front suspension towers by brackets,
Each bracket is composed of a first attachment portion, a second attachment portion, and an intermediate portion connecting the first attachment portion and the second attachment portion,
The first attachment portion and the second attachment portion are a bottom portion attached to an upper surface of the front suspension tower, a wall portion rising from an edge of the bottom portion, and extending from an edge of the wall portion to the cowl front panel. The upper part, fitted with,
The wall portion has a first wall portion and a second wall portion,
The vehicle front portion structure, wherein the first wall portion and the second wall portion form a corner portion.