JPH07112775B2 - Pillar hinge mounting structure for automobiles - Google Patents

Description

TECHNICAL FIELD The present invention relates to an improvement in a pillar hinge mounting portion structure of an automobile.

(Prior Art) Conventionally, as a pillar hinge mounting portion structure of an automobile of this type, there is, for example, one shown in FIGS. 3 to 5 (see Japanese Utility Model Laid-Open No. 58-136875). That is, 12 is a front pillar inner facing the passenger compartment side, and a front pillar outer upper 13 and a front pillar outer lower 14 are welded and integrated by superposing a part thereof on the outside of the front pillar inner 12. It is provided. A door hinge 16 and a hinge brace 17 having a U-shaped cross section are formed at the overlapping portion A'of the front pillar outer upper 13 and the front pillar outer lower 14 with the overlapping portion A '.
Are clamped together with bolts 18 and 18 and nuts 19 and 19 in a three-tightened manner. A reinforcement 15 for enhancing the rigidity of the front pillar is provided between the front pillar inner 12 and the front pillar outers 13, 14.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional front pillar hinge mounting portion structure, both front pillar outer upper parts,
Since the plate thicknesses of the lower portions 13 and 14 are small, the rigidity of the overlapping portion A'which is the attachment portion of the door hinge 16 cannot be increased, and the problem such as the door descending is likely to occur. If the thickness of both front pillar outers 13 and 14 is increased in order to deal with this problem, the weight of the vehicle body is significantly increased.

Further, when the plate thicknesses of the front pillar outers 13 and 14 are small, the overlapped portion A ′ is deformed, which causes a problem that abnormal noise is generated in the overlapped portion A ′.

The present invention has been made in view of the above problems, and an object of the present invention is to improve the rigidity of a door hinge mounting portion without causing an increase in vehicle body weight and cost, and to solve a problem such as a door down. The purpose of the present invention is to provide a pillar hinge mounting structure.

(Means for Solving Problems) In order to achieve the above object, the present invention folds a part of a reinforcement provided between a pillar inner and a pillar outer to bulge toward the front pillar outer side, The bulging portion of the reinforcement and the front pillar outer are overlapped to form a superposed portion, and a door hinge is attached to the superposed portion.

(Operation) Since the rigidity of the overlapping portion is increased by the thick reinforcement, there is no problem such as deformation of the door hinge attachment portion and door down.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a broken sectional view showing a pillar hinge mounting portion structure according to an embodiment of the present invention, and FIG. 2 is a perspective view of an essential portion of FIG. As shown in the figure, the front pillar 1 is a front pillar inner 2 which faces the inside of the vehicle, and the front pillar inner 2
It is composed of a front pillar outer upper and lowers 3 and 4 located on the outer side of, and a thick reinforcement 5 for increasing rigidity is provided inside. Then, a part of the reinforcement 5 is bent outward and bulges toward the front pillar outer upper and lower 3 and 4 sides, and the front pillar outer lower 4 is provided on the back surface of the bulging portion 5a. The upper end portion 4a of the above is joined by spot welding as shown in the figure to form a superposed portion A. The lower end of the front pillar outer upper 3 is connected to the outer surface of the upper end of the bulging portion 5a of the reinforcement 5 by spot welding.

A channel-shaped door hinge 6 and a hinge brace 7 are fastened to the overlapping portion A with bolts 8 and 8 and nuts 9 and 9 so as to be sandwiched from both sides. A door (not shown) is attached to the door hinge 6 so as to be openable and closable.

In the above, since the overlapping portion A is configured by the thick reinforcement 5, the rigidity of the overlapping portion A, which is the hinge mounting portion, is increased, and the problems such as the deformation of the overlapping portion A and the door down are eliminated. . Further, these effects can be obtained without increasing the plate thickness of the front pillar inner 2, the front pillar upper, and the lowers 3 and 4, so that the weight of the vehicle body and the cost are not increased.

In the present embodiment, the front pillar is described as an example, but the present invention is not limited to this, and the same can be applied to a center pillar and the like.

(Effect of the invention) As is apparent from the above description, according to the present invention, since the hinge mounting portion is configured by using the reinforcement force rationally, the rigidity of the door hinge mounting portion can be increased without increasing the weight and cost of the vehicle body. It is possible to solve problems such as door down.

[Brief description of drawings]

FIG. 1 is a sectional view showing a pillar hinge mounting portion structure according to an embodiment of the present invention, FIG. 2 is a perspective view of a main portion of FIG. 1, and FIG.
FIG. 4 is a side view of a front pillar portion of a conventional automobile, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIG. 5 is a broken sectional view showing a conventional front pillar hinge mounting portion structure. Explanation of code 1 …… Front pillar 2 …… Front pillar inner 3,4 …… Front pillar outer upper, lower 5 …… Rain force, 5a …… Swelling part 6 …… Door hinge, 7 …… Hinge brace A …… Overlap section

Claims (1)

[Claims] 1. A portion of a reinforcement provided between a pillar inner and a pillar outer is bent to bulge toward the pillar outer side, and the bulging portion of the reinforcement and the pillar outer are overlapped and polymerized. A pillar hinge mounting portion structure for an automobile, characterized in that a portion is formed and a door hinge is attached to the overlapping portion.