JP2013189053A - Automobile trunk lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trunk lid which is light and has sufficient rigidity inexpensively.SOLUTION: An annular vertical wall 11 is projected in the entire peripheral edge of the rear surface of a panel-shaped lid body 7 covering an opening of a trunk room in a lid closed state. The annular peripheral wall 13 is disposed at the projected end of the vertical wall 11 nearly parallel to a lid body 7 at a prescribed interval. The lid body 7, the vertical wall 11, and the peripheral wall 13 are integrally formed of resin materials.

Description

  The present invention relates to a trunk lid that opens and closes an opening of a trunk room provided in a vehicle body of an automobile from the outside of the vehicle.

  In the trunk lid disclosed in Patent Document 1, the rigidity is enhanced by joining a metal inner panel to the back surface of the resin outer panel so as to cover the region including the outer peripheral edge. Further, when the trunk room is closed, the outer peripheral edge of the trunk lid is brought into contact with a weather strip provided on the opening peripheral edge of the trunk room, thereby ensuring good sealing performance.

JP 2008-184104 A

  However, in Patent Document 1, since the inner panel is made of metal, the weight of the entire trunk lid increases.

  Further, since a process of joining the inner panel to the outer panel is required, the manufacturing cost increases.

  This invention is made | formed in view of this point, The place made into the objective is to provide the trunk lid which is lightweight and has sufficient rigidity at low cost.

  In order to achieve the above object, the present invention is characterized in that a single piece of a trunk lid having an outer peripheral edge portion reinforced is integrally formed of a resin.

  Specifically, the present invention is directed to a trunk lid that opens and closes an opening of a trunk room provided in a vehicle body from the outside of the vehicle, and has taken the following solution.

  That is, the invention according to claim 1 is a panel-shaped lid main body that covers the opening of the trunk room in a lid closed state, an annular standing wall that protrudes from the entire outer peripheral edge of the rear surface of the lid main body, Provided on the protruding edge of the standing wall portion is an annular peripheral wall portion provided substantially in parallel with the lid main body portion at a predetermined interval. The lid main body portion, the standing wall portion, and the peripheral wall portion are integrated with a resin material. It is characterized by being molded.

  According to a second aspect of the present invention, in the trunk lid of the automobile according to the first aspect, the standing wall portion is positioned at an inner peripheral edge of the peripheral wall portion in each lid side portion extending in the vehicle body front-rear direction and the vehicle width direction. An inner peripheral side standing wall part, an outer peripheral side standing wall part located at an outer peripheral edge of the peripheral wall part, and a position between the inner peripheral side standing wall part and the outer peripheral side standing wall part, across the peripheral wall part in the width direction. A connecting standing wall portion that connects the inner peripheral side standing wall portion and the outer peripheral side standing wall portion, and the peripheral wall portion includes an inner region blocked outward by the standing wall portion and an outer region blocked by the lid inner portion. It is divided into and.

  According to a third aspect of the present invention, in the trunk lid of the automobile according to the first or second aspect, the peripheral wall portion is provided with at least one attachment portion of a hinge member and a lock device. And

  According to the first aspect of the present invention, since the lid main body portion, the standing wall portion, and the peripheral wall portion are all made of a resin material, the weight of the trunk lid can be reduced as compared with the case where metal is partially used. Furthermore, since the trunk lid is composed of a single integral panel, the trunk lid can be reduced in weight compared to the case where the inner panel and the outer panel are joined.

  In addition, even if the trunk lid is composed of a single resin panel, the outer peripheral edge of the trunk lid, which is susceptible to load, is reinforced with a double structure of the lid main body part and the peripheral wall part, so the rigidity is enhanced, The rigidity of the entire lid is also secured. In addition, since the rigidity of the outer periphery of the trunk lid is enhanced in this way, when a weather strip is provided at the opening periphery of the trunk room, the outer edge of the trunk lid, that is, the peripheral wall portion is attached to the weather when the trunk room is closed. By bringing it into contact with the strip, a good sealing property can be secured.

  Furthermore, since the lid main body portion, the standing wall portion, and the peripheral wall portion are integrally formed and there is no need to join them together, the manufacturing cost can be reduced.

  According to the invention described in claim 2, since the peripheral wall portion is supported from at least three directions by the inner peripheral side standing wall portion, the outer peripheral side standing wall portion, and the connection standing wall portion, high surface rigidity can be secured in the peripheral wall portion.

  Further, since the space between the peripheral wall portion and the lid main body portion is divided into a plurality by the connecting standing wall portion, it is only necessary to prepare a plurality of small slide molds, and it is not necessary to prepare a large slide mold corresponding to the entire space. . Therefore, molding can be simplified by downsizing the slide mold.

  According to the third aspect of the present invention, when the peripheral wall portion is thickened to increase the strength around the attachment portion, sink marks are generated in the peripheral wall portion, but the peripheral wall portion is covered with an interval from the lid main body portion. Therefore, sink marks are not exposed to the outside of the vehicle, and there is no adverse effect on appearance. Therefore, the strength around the mounting portion can be increased without deteriorating the appearance.

It is the perspective view which looked at the trunk lid concerning the embodiment of the present invention from the front side. It is a perspective view which shows a lid main-body part by a virtual line in FIG. 1, and cut | disconnects a standing wall part by a base end part. It is sectional drawing in the AA of FIG. It is sectional drawing in the BB line of FIG. It is sectional drawing in the CC line of FIG. It is a perspective view which shows the attachment wall part periphery. It is explanatory drawing which shows arrangement | positioning with a standing wall part and a slide type | mold.

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

  1 to 5 show a trunk lid 5 according to the present embodiment that opens and closes an opening 3a of a trunk room 3 provided in a vehicle body 1 of an automobile from the outside of the vehicle.

  The trunk lid 5 includes a panel-like lid body portion 7 that covers the opening 3a of the trunk room 3 when the lid is closed. The lid body portion 7 includes a front lid side portion 9a extending in the vehicle width direction at the front end of the lid body portion 7, a front side lid side portion 9b extending from the both ends in the vehicle width direction of the front lid side portion 9a to the rear of the vehicle body, A vehicle width direction so as to connect the rear side lid side portion 9c that curves and extends from the rear end of the front side lid side portion 9b toward the inner rear in the vehicle width direction, and the rear ends of both rear side lid side portions 9c. It has a rear lid side portion 9d extending in the direction. The lid body portion 7 is integrally formed with a rectangular panel portion 7a that is slightly inclined downward toward the rear of the vehicle body and a large inclination downward from the rear edge of the rectangular panel portion 7a to gradually decrease the width. The left and right symmetrical trapezoidal panel portions 7b are formed to have a substantially cross-sectional shape when viewed from the side.

  An annular standing wall portion 11 projects from the entire outer peripheral edge of the rear surface of the lid body portion 7, and an annular peripheral wall portion 13 along the entire circumference of the lid body portion 7 is formed on the protruding end edge of the standing wall portion 11. The lid body 7 is provided substantially in parallel with a predetermined distance. The surface of the peripheral wall portion 13 on the side opposite to the lid main body portion 7 contacts the weather strip 14 provided in an annular shape around the periphery of the opening 3a of the trunk room 3 when the trunk room 3 is closed. The lid main body portion 7, the standing wall portion 11, and the peripheral wall portion 13 are integrally formed of a fiber reinforced resin material such as carbon fiber reinforced polypropylene (PPCF), glass fiber reinforced polypropylene (PPGF), or SMC (Sheet Molding Compound). ing.

  As shown in FIG. 2, the standing wall portion 11 is located at the inner peripheral edge of the peripheral wall portion 13 at both ends of each of the front lid side portion 9 a, the front side lid side portion 9 b, and the rear lid side portion 9 d. A pair of inner peripheral side standing wall portions 11a, one outer peripheral side standing wall portion 11b positioned at the outer peripheral edge of the peripheral wall portion 13 in the middle, and between the inner peripheral side standing wall portion 11a and the outer peripheral side standing wall portion 11b And a pair of connecting standing wall portions 11c that cross the circumferential wall portion 13 in the width direction and connect both side edges of the inner peripheral side standing wall portion 11a and inner side edges of both outer peripheral side standing wall portions 11b. In addition, the standing wall portion 11 has, in each rear side lid side portion 9c, one inner circumferential side standing wall portion 11a located on the inner peripheral edge of the circumferential wall portion 13 on the front side and an outer side of the circumferential wall portion 13 on the rear side. One outer peripheral side standing wall portion 11b located at the peripheral edge, and between the inner peripheral side standing wall portion 11a and the outer peripheral side standing wall portion 11b, crossing the peripheral wall portion 13 in the width direction, the inner peripheral side standing wall portion 11a. And a single connection standing wall portion 11c that connects the rear side edge and the front side edge of the outer peripheral side standing wall portion 11b. Further, the standing wall portion 11 crosses the circumferential wall portion 13 in the width direction, and the rear side edge of the rear side standing wall portion 11b on the rear side of the rear side lid side portions 9c and the rear lid side portion 9d. A pair of connecting standing wall portions 11c ′ that connect the outer side edges of the inner peripheral standing wall portions 11a at both ends are provided.

  The peripheral wall portion 13 is divided into an inner region 15 blocked outward by the standing wall portion 11 and an outer region 17 blocked inside the lid in each of the lid side portions 9a to 9d. In each of the front lid side portion 9a, the front side lid side portion 9b, and the rear lid side portion 9d, a peripheral wall portion is formed by a pair of outer regions 17 at both ends and an inner region 15 sandwiched between the outer regions 17. On the other hand, in each rear side lid side portion 9c, the peripheral wall portion 13 is divided into a rear inner region 15 and a front outer region 17.

  On the corner of the boundary between the front lid side 9a and the front side lid side 9b and the corner of the boundary between the front side lid side 9b and the rear side lid side 9c on the back surface of the lid main body part 7, The reinforcing wall portion 19 is provided so as to cross the peripheral wall portion 13 in the width direction, and the peripheral wall portion 13 is integrally connected to the protruding end edge thereof, while the standing wall portion 11 ( The inner peripheral side wall portion 11a) is integrally connected. The outer regions 17 at both ends of the front lid side portion 9a and the outer regions 17 at the front ends of the front side lid side portions 9b are divided by the reinforcing wall portion 19. Similarly, the outer region 17 at the rear end of the front side lid side portions 9b and the outer region 17 at the front side of the rear side lid side portions 9c are also divided by the reinforcing wall portion 19.

  The outer peripheral portion of the front end portion on both sides in the vehicle width direction of the peripheral wall portion 13, that is, the outer peripheral portion of the outer region 17 at the front end of both front side lid side portions 9b (the portion surrounded by a broken line in FIG. 2) is from the inner peripheral side. The thick portion 21 is formed as a mounting portion which is formed thick and bulges to the back side. An insert bracket 24 in which the heads of a pair of bolts 23 are welded is embedded in each thick portion 21 by insert molding, and the shaft portion of each bolt 23 is spaced from the rear surface of the thick portion 21 with a space in the front-rear direction. It protrudes. The shaft portion of the bolt 23 is inserted into the bolt insertion hole 26 of the hinge bracket 25 as a hinge member, and the nut 27 is screwed to the tip of the shaft portion, so that the hinge bracket 25 is attached to the thick portion 21 (the peripheral wall portion 13). It is attached. These hinge brackets 25 are attached to the vehicle body via hinges (not shown).

  A portion excluding both ends in the vehicle width direction of the inner region 15 of the rear lid side portion 9d, that is, a central rear end portion in the vehicle width direction of the peripheral wall portion 13 is bent near its outer peripheral edge, and the peripheral wall portion on the inner peripheral side from the bent portion 13 constitutes a mounting wall portion 29 that is inclined so as to be separated from the lid main body portion 7 toward the inner peripheral side. Both side edges in the vehicle width direction of the mounting wall portion 29 are connected to the peripheral wall portions 13 on both sides in the vehicle width direction of the mounting wall portion 29 by triangular side wall portions 31.

  As shown in FIG. 6, a pair of cutout portions 33 as substantially U-shaped attachment portions are provided on the inner peripheral edge of the attachment wall portion 29 so as to open to the inner peripheral side. A mounting wall 29 around each notch 33 is sandwiched between clip nuts 35, and a plate 37 is fastened to the clip nut 35 and the notch 33 from the back side (lower side in FIG. 3) with bolts 39. A striker 41 that can be locked to a latch mechanism (not shown) attached to the vehicle body is welded to the plate 37. The striker 41 and the latch mechanism constitute a lock device, and this lock device is attached to the notch 33.

  The trunk lid 5 configured as described above has a plurality of small slides as shown in FIG. 7 because the space between the lid main body portion 7 and the peripheral wall portion 13 is divided into a plurality by the connecting standing wall portions 11c. Molding is performed by sliding the mold 101 in the direction of the arrow. Therefore, it is only necessary to prepare a plurality of small slide molds, and it is not necessary to prepare a large slide mold corresponding to the entire space, and the molding can be simplified by downsizing the slide mold.

  Therefore, according to this embodiment, since the lid main body part 7, the standing wall part 11, and the peripheral wall part 13 are all made of a resin material, the trunk lid 5 can be reduced in weight as compared with the case where metal is used in part. Furthermore, since the trunk lid 5 is composed of a single integral panel, the trunk lid 5 can be reduced in weight as compared with a case where the inner panel and the outer panel are joined.

  Further, even if the trunk lid 5 is composed of a single resin panel, the lid main body portion 7, the standing wall portion 11, and the peripheral wall portion 13 are composed of a fiber reinforced resin material, and the trunk lid 5 is easily exposed to a load. The periphery is reinforced by the double structure of the lid main body part 7 and the peripheral wall part 13, and the rigidity is ensured. In addition, since the rigidity of the outer peripheral edge of the trunk lid 5 is increased in this way, when the trunk room 3 is closed, a good sealing property can be secured by the contact between the peripheral wall portion 13 and the weather strip 14.

  Furthermore, since the lid main body part 7, the standing wall part 11, and the peripheral wall part 13 are integrally formed and there is no need to join them together, the manufacturing cost can be reduced.

  In addition, since the peripheral wall portion 13 is supported from at least three sides by the inner peripheral side standing wall portion 11a, the outer peripheral side standing wall portion 11b, and the connection standing wall portion 11c, high surface rigidity can be secured to the peripheral wall portion 13.

  Further, if the thickness of the peripheral wall 13 is increased in order to increase the strength around the hinge bracket 25 or the locking device mounting portion, sink marks are generated in the peripheral wall part 13. However, since the peripheral wall part 13 is covered by the lid main body part 7, It is not exposed to the outside of the car and there is no adverse effect on the appearance. Therefore, the strength around the attachment position of the hinge bracket 25 or the locking device can be increased without deteriorating the appearance.

  In the present embodiment, the mounting portions of both the hinge bracket 25 and the lock member are provided on the peripheral wall portion 13, but only one of the mounting portions may be provided.

  INDUSTRIAL APPLICABILITY The present invention is useful as a trunk lid that opens and closes an opening of a trunk room provided in the body of an automobile from the outside of the vehicle.

1 body
3 Trunk room 3a opening
5 Trunk lid
7 Lid body
9a Front lid side (lid side)
9b Front side lid side (lid side)
9c Rear side lid side (lid side)
9d Rear lid side (lid side)
11 Standing wall
11a Inner peripheral side wall
11b Outer peripheral wall
11c Connecting vertical wall
13 Perimeter wall
15 Inner area
17 Outside area
21 Thick part (mounting part)
25 Hinge bracket (hinge member)
33 Notch (mounting part)
41 striker (locking member)

Claims (3)

A trunk lid (5) for opening and closing an opening (3a) of a trunk room (3) provided in a vehicle body (1) of an automobile from the outside of the vehicle,
A panel-shaped lid body (7) that covers the opening (3a) of the trunk room (3) in the lid closed state;
An annular standing wall portion (11) projecting on the entire outer peripheral edge of the back surface of the lid body portion (7);
The lid main body portion (7) and the annular peripheral wall portion (13) provided substantially parallel to the protruding end edge of the standing wall portion (11) at a predetermined interval, these lid main body portions (7), A trunk lid of an automobile, wherein the standing wall portion (11) and the peripheral wall portion (13) are integrally formed of a resin material. The trunk lid of the automobile according to claim 1,
The standing wall portion (11) includes an inner peripheral side standing wall portion (11a) positioned at an inner peripheral edge of the peripheral wall portion (13) in each of the lid side portions (9a to 9d) extending in the vehicle longitudinal direction and the vehicle width direction. The outer peripheral side standing wall portion (11b) located at the outer peripheral edge of the peripheral wall portion (13), and the inner peripheral side standing wall portion (11a) and the outer peripheral side standing wall portion (11b), the peripheral wall portion ( 13) including a connecting standing wall (11c) that connects the inner peripheral side standing wall (11a) and the outer peripheral side standing wall (11b) across the width direction,
The peripheral wall (13) is divided into an inner region (15) blocked outward by the standing wall (11) and an outer region (17) blocked outward by the lid. Automobile trunk lid. In the trunk lid of the automobile according to claim 1 or 2,
A trunk lid for an automobile, wherein at least one attachment portion (21, 33) of a hinge member (25) and a lock device (41) is provided on the peripheral wall portion (13).

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