JPH07246837A - Mounting structure for vehicle back-door to car body opening port - Google Patents

Abstract

PURPOSE:To perform easy build-up adjustment of a back-door to a body by allowing the back-door to be fastened with a hinge in a closed condition. CONSTITUTION:A preset length of bolt 32 is barried in the first hinge arm 31a of a hinge 31, passed through a cylindrical member 12 and exposed to an assembly space R in a rear lamp at the rear opening edge of a body 10 in such a state that the arm 31a is put in contact with the opening side face of the cylindrical member 12 formed as the opening edge of the body 10, and fastened and fixed with a nut 33 threaded to the exposed end of the bolt 32. At the passed-through portion of the bolt 32 in the cylindrical member 12, reinforcing members 16, 17, 18 are arranged for reinforcement in the fastening direction of the bolt 32 so that the nut 33 can be threaded through the assembly space R.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a vehicle back door to an opening of a vehicle body.

[0002]

2. Description of the Related Art As one type of mounting structure for a vehicle back door to an opening of a vehicle body, as shown in FIG. 6, a first hinge arm portion 1a constituting a hinge 1 is attached to a rear opening portion of a vehicle body 2. The second hinge arm portion 1b constituting the hinge 1 is fixed to one side 3a of the back door 3 while being fixed to the side opening edge portion, and the back door 3 is opened and closed to the opening portion of the vehicle body 2 via the hinge 1. There is a mounting structure that fixes it as much as possible.

[0003]

By the way, in the back door 3 mounted by adopting such a mounting structure, the first hinge arm portion 1a forms the opening of the tubular member 2a forming the opening of the vehicle body 2. Since the bolts are tightened in the state where they are in contact with the side surface 2b, the hinge 1 cannot be tightened when the back door 3 is closed, and it is difficult to adjust the installation of the back door 3 to the vehicle body 2. Further, when the back door 3 is opened, the fastening bolts 4a and 4b of the first hinge arm portion 1a fixed to the vehicle body 2 side are exposed to the outside to give an unsightly appearance. Therefore, it is an object of the present invention to solve these problems.

[0004]

A backdoor mounting structure according to the present invention is a backdoor mounting structure of the above-mentioned type, wherein a bolt of a predetermined length is provided on a first hinge arm portion constituting the hinge. The bolt is penetrated through the tubular member with the first hinge arm portion abutting the side surface of the opening portion of the tubular member forming the opening edge portion of the vehicle body. The bolt is exposed to the rear lamp assembly space at the rear opening edge of the vehicle body, is fixed by tightening a nut screwed to the exposed end of the bolt, and penetrates the bolt inside the tubular member. The part is characterized in that a reinforcing member for reinforcing the tightening direction by the bolt is arranged.

[0005]

In the mounting structure having such a structure, the tip of the bolt for fastening and fixing the first hinge arm portion of the hinge is exposed to the rear lamp assembling space. Before attachment, the installation of the back door to the vehicle body can be freely adjusted by appropriately tightening or loosening the nut screwed to the tip portion of the bolt. Further, in this case, since the portion of the tubular member forming the opening edge portion of the vehicle body through which the bolt penetrates is reinforced in the tightening direction of the bolt, the rigidity of the tightened portion can be sufficiently ensured. The nut for tightening and fixing the first hinge arm portion is not exposed to the outside even when the back door is opened, and the appearance is not damaged.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a mounting structure according to the present invention. 5 is a transverse cross-sectional view taken along the line 1-1 of FIG. 5 showing the rear side of the vehicle. In the vehicle, the right side edge of the back door 20 is attached to the right side opening edge of the rear side opening of the vehicle body 10. The portion is attached rotatably in the front-rear direction via a pair of upper and lower door hinges 31, and the rear opening 10 a of the vehicle body 10 is opened and closed by the back door 20.

An outer panel 11 is provided at a rear corner of the vehicle body 10.
And a tubular extension quarter 12 and a tubular door opening 13, and an inner trim 14 parallel to the outer panel 11 is attached to an end of the door opening 13. In these configurations, the inner surfaces 12a and 13a of the extension couter 12 and the door opening 13 form the rear opening of the vehicle body 10. In addition, the outer panel 11 having the configuration
In the recess 11 that extends in the vertical direction and opens to the outside.
a is formed, and the lamp assembly 15 of the rear lamp is assembled in the space R of the recess 11a. In the vehicle body 10, a portion of the extension quota 12 that faces the space R serves as a fixing portion of the first hinge arm portion 31 a of the door hinge 31.

In the extension quarter 12, three types of reinforcing members 1 shown in FIGS.
6, 17, 18 are interposed. The first reinforcing member 16 includes an extension quota 12 and a door opening 13.
The second reinforcing member 17 and the third reinforcing member 18 reinforce the extension quarter 12 itself, and the third reinforcing member 18 forms a passage for each tightening bolt 32. Each of these reinforcing members 16
In Nos. 18 to 18, each tightening bolt 32 penetrates each of the three holes 16a of the first reinforcing member 16 and each of the six holes 17a of the second reinforcing member 17 in a state of being arranged in the extension quarter 12, In addition, each tightening bolt 32 extends along each guide portion 18a having an arcuate cross section of the third reinforcing member 18.

Each tightening bolt 32 is a first hinge of the door hinge 31.
The first hinge arm portions 31a are planted in the hinge arms 31a and are arranged in parallel with each other. It is exposed in the assembly space part R. A nut 33 is screwed to each of these tip portions, and the first hinge arm portion 31a is fixed to the extension quarter 12 by a tightening bolt 32 and a nut 33.

Second hinge arm portion 31 of door hinge 31
b is inserted into a cylindrical portion 21a formed by the inner panel 21 of the back door 20, and is fixed by tightening a bolt 35 to a weld nut 34 fixed to the outer surface of the inner panel 21. In this state, the center of rotation of the door hinge 31 is located between the inner side surface 12a of the extension quarter 12 and the inner side surface 21b of the inner panel 21 of the back door.

In the mounting structure having such a structure, the tip of the bolt 32 for fastening and fixing the first hinge arm portion 31a of the door hinge 31 is exposed to the assembling space portion R of the rear lamp assembly 15, so that the assembly is provided. 1
Before assembling 5, the nut 33, which is screwed to the tip of the bolt 32, is appropriately tightened or loosened, so that the installation of the back door 20 on the vehicle body 10 can be freely adjusted. Further, in this case, the portion of the extension quarter 12 that forms the opening edge of the vehicle body 10 and through which the bolt 32 penetrates is the first, second, and third reinforcing members 1.
Since the bolts 32 are reinforced in the tightening direction by the bolts 6, 17 and 18, and the connection with the door opening 13 is also reinforced, the rigidity of the tightened portion can be sufficiently secured. Furthermore, the nut 33 for fastening and fixing the first hinge arm portion 31a is not exposed to the outside even when the back door 20 is opened, and the appearance is not damaged.

In this embodiment, in particular, the bolts 32 that fasten and fix the first hinge arm portion 31a.
The head portion of the back door 20 is buried in the hinge arm portion 31a, and the bolts 35 and the nuts 34 for fastening and fixing the second hinge arm portion 31b are located inside the inner panel 21 of the back door 20. The appearance of the rear opening edge portion when the door 20 is opened becomes a neat appearance. In addition, the second hinge arm portion 3 of the door hinge 31
The distance between the tightened portion of 1b and the center of hinge rotation can be shortened, and the hinge rigidity can be increased.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view in the direction of arrow 1-1 in FIG. 5 showing a mounting structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of a first reinforcing member used in the mounting structure.

FIG. 3 is a perspective view of a second reinforcing member used in the mounting structure.

FIG. 4 is a perspective view of a third reinforcing member used in the mounting structure.

FIG. 5 is a partial rear view of the vehicle adopting the same mounting structure to which a back door is mounted.

FIG. 6 is a cross-sectional plan view corresponding to FIG. 1, schematically showing a conventional mounting structure.

[Explanation of symbols]

10 ... Vehicle body, 11 ... Outer panel, 12 ... Extension quarter, 13 ... Door opening, 15 ... Lamp assembly, 16, 17, 18 ... Reinforcing member, 20 ... Back door, 21 ... Inner panel, 31 ... Door hinge, 3
1a ... 1st hinge arm part, 31b ... 2nd hinge arm part, 32, 35 ... Tightening bolt, 33, 34 ... Nut.

Claims (1)

[Claims] 1. A first hinge arm portion constituting a hinge is fixed to one opening edge portion of a rear opening portion of a vehicle body, and
The second hinge arm portion forming the hinge is fixed to one side of the back door, and the back door for vehicle is attached to the opening of the vehicle body via the hinge so that the back door can be opened and closed. In the mounting structure, a bolt having a predetermined length is planted in a first hinge arm portion of the hinge, and the first hinge arm portion is formed into an opening of a tubular member that forms an opening edge portion of the vehicle body. The bolt penetrates the tubular member in a state of being brought into contact with the side surface of the rear portion, is exposed to the rear lamp assembly space portion of the rear opening edge of the vehicle body, and is screwed to the exposed front end portion of the bolt. The vehicle back door is characterized in that it is tightened and fixed by a nut, and a reinforcing member that reinforces the tightening direction of the bolt is provided in the penetrating portion of the bolt inside the tubular member. To the car body opening Mounting structure.