JPS61282173A - Lid structure in automobile - Google Patents

Abstract

PURPOSE:To reinforce a lid front part so rigid enough and thereby improve its rigidity, by setting up reinforcement in a closed section part made up of both outer and inner panels. CONSTITUTION:Closed sections 18 and 19 are made up of an outer panel 14 and an inner panel 15. Striker reinforcement 20 is set up in the closed section 18. Likewise, reinforcement 22 is disposed through the inside of these closed sections 18 and 19 so as to go along an inner surface of the outer panel 14. The front and is joined to the inner panel 15 at the front farther than a setting part of a striker 21. In addition, a rear end of the reinforcement 22 is joined to both panels 14 and 15 at a joined part between the outer panel 14 at the rear farther than the setting part of the striker 21 and the inner panel 15.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of an automobile lid, and more particularly to the structure of a lid serving as a bonnet.

(Prior Art) As is well known, in automobiles such as passenger cars, an opening at the front of the vehicle body that serves as an engine room is generally covered by a lid, and this lid serves as a so-called bonnet. This lid is generally made up of an outer panel and an inner panel joined together, and in many cases a lid locking striker is attached to the front end. On the other hand, in recent years, many automobiles equipped with retractable headlamps have been provided, and in such automobiles, the lid is formed such that the front ends of both sides corresponding to the headlamp mounting positions are removed. In such a lid, an extension part extending toward the front of the vehicle body is formed at the center of the front end (that is, the part between the parts removed as described above), and the striker is attached to this extension part. Conventionally, it has been recognized that this extension has insufficient rigidity and is easily deformed. In particular, when the outer panel and inner panel of the lid are formed of aluminum plates in order to reduce the weight of the vehicle body in order to improve fuel efficiency, the above-mentioned problem is particularly likely to occur.

Therefore, as shown in Japanese Patent Application Laid-Open No. 58-185378, it has been considered to reinforce the above-mentioned extension part with reinforcement for attaching the lid lock device, but even then, a sufficient effect of improving rigidity has not been obtained. is the current situation.

(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide an automobile lid structure that can sufficiently increase the rigidity of the extended portion of the front end of the lid. be.

(Structure of the Invention) The structure of the automobile lid of the present invention is such that an outer panel and an inner panel are joined to each other, and the above-mentioned extension part is formed at the front end. The outer panel and the inner panel form a closed section, a reinforcement is disposed within this closed section, and the rear end of the reinforcement joins the two panels at the rear of the attachment section of the striker. The front end is joined to the inner panel in front of the attachment part of the striker, and both ends are joined to the inner panel in the vicinity of the joint between the two panels.

(Example) Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

Figures 1.2 and 3 show an automobile lid structure according to an embodiment of the present invention. 1 shows the planar shape of the lid 11 of the automobile 10 shown in FIG. 4, and FIGS.
■Shows the vertical cross-sectional shape in the linear direction. The lid 11 covers an opening 12 at the top of the engine room in a front engine type automobile, and covers the left and right rear ends (base ends) of the lid 11, as shown in FIG. Department)
are rotatably attached to the vehicle body via hinges 13L and 13R, respectively.

As shown in Fig. 2.3, the lid 11 is formed by joining an outer panel 14 and an inner panel 15, but in this example, in order to reduce the weight of the vehicle body, these panels 14 and 15 are made of aluminum plates. It is formed. Inner panel 15 provided with opening 16 for weight reduction
The outer panel 14 and the outer panel 14 are joined to each other by hemming at the periphery (see Fig. 2.3), and the other parts are joined, for example, via a filler. The inner panel 15 and the outer panel 14 form a closed cross section at appropriate locations, thereby increasing the rigidity of the lid 11.Furthermore, the front ends of both sides of the lid 11 are excluded. Thus, the lid 11 has an extension portion 11a at the center of its front end.
It has a shape that has. The headlamps 17L and 17R of the automobile 10 are arranged so that when the lid 11 is closed, they are located outside the extension 11a, that is, in the portions removed as described above. These headlamps 17L and 17R are of a so-called retractable type, and can be selectively set to either the retracted state shown in FIG. 1.4 or the operating state in which the lamps are erected.

As clearly shown in FIG. 2, the outer panel 14 and the inner panel 15 form a closed section 18, 19 at the front of the lid including the extension 11a.

A striker reinforcement 20 is disposed within the closed section 18, and a lid lock striker 21 is fixed to the reinforcement 20, for example, by welding. This striker 21 engages with a locking member 30 on the vehicle body side when the lid 11 is in the closed state, and locks the lid 11 in the closed state. and closed cross-section section 18.
A reinforcement 22 is disposed within the outer panel 19 so as to extend along the inner surface of the outer panel 14. This reinforcement 22 is made of an aluminum plate like the outer panel 14 and the inner panel 15, and its front end is attached to the inner panel 15 in the plane from the mounting part of the striker 21, for example, by spot welding or through a filler. are joined together. Further, the rear end of the reinforcement 22 is joined to both panels 14 and 15 through a filler, for example, at the joint between the outer panel 14 and the inner panel 15, which is located behind the attachment part of the striker 21. Between the two closed sections 18.19, the reinforcement 22 is attached to both the panels 14.15 together with the striker reinforcement 20.
For example, they are bonded via a filler. Further, as shown in FIG. 3, both ends of the reinforcement 22 are joined to the inner panel 15 near the joint of both panels 14, 15 by spot welding or via a filler. The rear end portion of the striker reinforcement 20 is joined to the inner panel 15 by spot welding, for example.

In addition, as mentioned above, in the front part of the lid 11, the two closed section parts 18 and 19 arranged in the longitudinal direction of the vehicle body are not provided, but only one closed section part 18 and 19 is provided.
Only one closed cross section may be provided.

Further, both panels 14.
15 may form another closed section to further increase the rigidity of the front portion of the lid.

(Effects of the Invention) As explained above, in the automobile lid structure of the present invention, the outer panel and the inner panel form a closed cross section in the portion including the extension of the front part of the lid, and inside the closed cross section A reinforcement is arranged, the front end of this reinforcement is joined to the inner panel in front of the striker attachment part, and the rear end is attached to the striker.
The front part of the lid is strongly reinforced by this reinforcement because it is joined to the joint between both panels at the rear of the mounting part, and the inner panel is joined at both ends near the joint between both panels. Stiffness is greatly increased.

Note that the lid structure of the present invention is not limited to lids made of aluminum plates, but can also be applied to lids made of other general steel plates, etc., and the above-mentioned effects can be achieved in that case as well, but aluminum, which has low rigidity, It is particularly effective when applied to lids made of plates.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an automobile lid structure according to an embodiment of the present invention, and FIGS. 2 and 3 are a vertical cross-sectional view taken along the line ■-■ and a vertical cross-section taken along the line ■-■ in FIG. 1, respectively. 4 are perspective views showing an automobile to which the lid structure of the present invention is applied. DESCRIPTION OF SYMBOLS 10... Car 11... Lid 11a... Lid extension part 12... Opening part 1
4...Outer panel 15...Inner panel 171.17R...Headlamp 18.19.
...Closed section 20...Striker reinforcement 21...Striker 22...Reinforcement Fig. 1 Fig. 3 Fig. 4 Dan

Claims (2)

[Claims] (1) A lid that covers the opening at the front of the vehicle body, and is made up of an outer panel and an inner panel that are joined together, with the front ends of both sides corresponding to the headlamp mounting position removed, and between these removed parts. In an automobile lid in which an extension part extending toward the front side of the vehicle body is formed and a lid lock striker is attached to the extension part, a closed cross-section part is formed by an outer panel and an inner panel at the front part of the lid including the extension part. , a reinforcement is disposed within this closed section, the rear end of which is joined to the joint of both panels behind the attachment part of the striker, and the front end of which is joined to the inner panel in front of the attachment part of the striker. An automobile lid structure characterized by: (2) The automobile lid structure according to claim 1, wherein a plurality of the closed cross-section portions are formed so as to be lined up in the longitudinal direction of the vehicle body.