JPH0988383A - Mounting structure of grip handle for back door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grip handle mounting structure which does not require provision of any working hole in a door inner panel and accordingly use of any member to block such a hole, with which a grip handle can be easily mounted from outside a back door, and which can widen the degree of freedom in setting the mounting position of the grip handle with no change in the seal surface owing to a weather strip, etc. SOLUTION: A bolt insert hole 6 is formed only in a door outer panel 5 of a back door 2, and a stud bolt 10 is welded to a gazette plate 8, and in the condition that the threaded portion 10a of this stud bolt 10 is threaded through the hole 6 from the inside of the door outer panel 5 to be protruded to outside the panel 5, the gasette plate 8 is attached to the inner surface of the door outer panel 5. A mounting hole 13 in the grip handle 3 is fitted on this threaded portion 10a of bolt 10 followed by screwing of a nut 14, and thereby the grip handle 3 is mounted on the back door 2 in the fastened condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a grip handle to a back door of an automobile, which is formed by joining a door inner panel and a door outer panel in a closed cross-sectional shape. It is suitable to be applied to mount a handle.

[0002]

2. Description of the Related Art For example, in a hatchback type back door of an automobile, a grip handle may be attached to the outer surface side of the back door. FIG. 4 shows a mounting structure of the grip handle 21 in the back door 20 of this type. Both end portions 21b of the grip handle 21 having a grip portion 21a at an intermediate position on the left and right are attached to a lower end edge portion 20a of the back door 20. Has been. As shown in FIG. 4, the above-mentioned back door 20 includes the door inner panel 2
2 and the door outer panel 23 are joined to each other in a closed cross-sectional shape, and a working hole 24 is formed in a lower end edge portion of the door inner panel 22, and the working hole 24 is formed in a lower end edge portion of the door outer panel 23. A bolt insertion hole 25 is formed at a position corresponding to.

Conventionally, however, the work of attaching the grip handle 21 to the back door 20 is conventionally performed as follows. First, from the inside of the back door 20 (the inside of the door inner panel 22), insert the bolt 26 into the work hole 2
4 is inserted into the bolt insertion hole 25, and the mounting portion 21b of the grip handle 21 applied to the outer surface of the lower end edge of the door outer panel 23 is fixed to the door outer panel 23 from the inside of the back door 20 with the bolt 26. .
After this work is completed, a cap member 27, a seal member (not shown), or the like is fitted into the work hole 24 of the door inner panel 22, so that the work hole 24 is closed. Was there.

On the other hand, a waterproof weather strip 31 attached to a vehicle body portion corresponding to the lower end edge of the back door 20, that is, a flange joint portion 30 between the tail member 28 and the rear skirt panel 29 is the entire back door 20. The cap member 27 is crimped when closed.

[0005]

However, the conventional backdoor grip handle mounting structure as described above requires a closing member such as a cap member 27 to close the working hole 24 formed in the door inner panel 22. Therefore, the number of parts and the number of assembling steps increase, which causes a problem of cost increase. Furthermore, when water cannot be sufficiently prevented from entering with the cap member 27 or the seal member,
In some cases, it is necessary to drastically change the shape, such as changing the position (height position) of the weather strip 31.

Further, since the mounting position of the grip handle 21 is limited to the range where the mounting work can be performed from the inside of the back door (the inside of the vehicle interior), the mounting position of the grip handle 21 is arranged at a too low position. The reality is that we cannot do it. Therefore, there is a problem that it is difficult to open (rotate) the back door 20 with the grip handle 21 and the operability is poor. Therefore, in order to improve the operability, it is desirable to set the mounting position of the grip handle 21 as close to the lower end of the back door 20 as possible.

The present invention has been made in view of the above circumstances, and an object thereof is to eliminate the need for forming a working hole in a door inner panel and a member for closing the working hole, and to provide a grip handle. For a back door that can be easily installed from the outside of the back door and that can increase the degree of freedom in setting the grip handle mounting position without changing the sealing surface such as a weather strip. It is to provide a mounting structure for a grip handle.

[0008]

In order to achieve the above object, according to the present invention, a structure for attaching a grip handle to a back door of an automobile, which is formed by joining a door inner panel and a door outer panel in a closed sectional shape. In the above, the bolt insertion hole is formed only in the door outer panel of the back door, and the threaded portion of the stud bolt welded to the gusset plate is projected from the inner surface side of the door outer panel to the outer surface side of the door outer panel through the bolt insertion hole. Under such a state, the gusset plate is attached to the inner surface of the door outer panel, and the mounting portion of the grip handle is fitted into the threaded portion of the projecting stud bolt, and the nut is screwed into The grip handle is attached to the back door in a tightened state.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a four-wheeled vehicle 1 having a backdoor grip handle mounting structure according to the present invention. The four-wheeled vehicle 1 of this example has a hatchback type backdoor 2 at the rear of the vehicle body. It has. As shown in FIGS. 1 and 2, a grip handle 3 having a grip portion 3a extending in the left-right direction is attached to the center of the lower end of the back door 2 in the left-right direction.

More specifically, the back door 2 is formed by joining a door inner panel 4 and a door outer panel 5 in a closed cross-sectional shape as shown in FIG. At the lower end of the door inner panel 4, a hole is not formed, but only the door outer panel 5 is provided with a bolt insertion hole 6. On the other hand, the grip handle 3 is provided with mounting portions 7 on both left and right end portions of a bar-shaped grip portion 3a. The pair of mounting portions 7 are tightened to a lower end edge portion 5a of a door outer panel 5 as described later. It is supposed to be fixed (see FIGS. 2 and 3).

The mounting structure of the grip handle 3 in this example will be described. In this example, the grip handle 3 is
As one of the attachment means of the above, a combination member 11 formed by welding a stud bolt 10 to the gusset plate 8 is used (see FIG. 3). In this combination member 11, the head portion 10b of the stud bolt 10 is integrally welded to the gusset plate 8 in advance while the threaded portion 10a of the stud bolt 10 is penetrated by the through hole 12 of the gusset plate 8. Are combined.

Next, the work of mounting the grip handle 3 will be described below. That is, the stud bolt 10 integrally connected to the gusset plate 8
The threaded portion 10a of the
Is inserted from the inside of the door outer panel 5 (on the side of the door inner panel 4) so that the tip portion of the screw portion 10a is projected outward from the door outer panel 5. Under such a condition, the range L of the grip handle mounting seat surface
In FIG. 3, the gusset plate 8 is attached to the back surface of the door outer panel 5 by welding. In the case of this example, only the peripheral portion of the gusset plate 8 is joined to the back surface of the door outer panel 5, and the central portion thereof is slightly separated from the back surface of the door outer panel 5 so that a gap 9 exists between them. In this state, the peripheral portion is welded to the back surface of the door outer panel 5.

Next, a mounting hole (bolt insertion hole) 13 formed in the mounting portion 7 of the grip handle 3 is fitted into the threaded portion 10a protruding from the door outer panel 5 as shown in FIG. Nut 14 backdoor 2
The mounting portion 7 of the grip handle 3 is clamped and fixed to the outer surface of the door outer panel 5 by screwing and tightening from the outside to the tip portion of the screw portion 10a. At this time, the tightening of the nut 14 on the door outer panel 5 requires only a slight gap 9 between the gusset plate 8 and the door outer panel 5.
Therefore, the gusset plate 8 is formed against the appropriate elasticity of the central portion of the gusset plate 8. Thereafter, a resin cover member 15 is attached to the mounting portion 7 in order to cover the screwed portion of the screw portion 10a and the nut 14 and improve the appearance (see FIGS. 2 and 3).

On the other hand, as described above, no hole is provided in the lower end edge of the door inner panel 4 corresponding to the mounting position of the grip handle 3, and the inner surface thereof serves as the contact surface of the weather strip 16. There is. That is, the back door 2
Under the condition that the rear end is placed in the fully closed position as shown in FIG. 3, the free end portion of the weather strip 16 attached to the flange member 19 of the tail member 17 and the rear skirt panel 18 forming the rear portion of the vehicle body is , Door inner panel 4
Is directly contacted with.

According to this embodiment thus constructed, even when the waterproof structure using the weather strip 16 is adopted, the grip handle 3 is attached to the back door 2 without changing the position of the sealing surface for waterproofing. It can be easily installed from the outside. Moreover, since the mounting position of the grip handle 3 can be freely set regardless of the position of the seal surface, the degree of freedom in setting the position of the grip handle 3 can be improved, and the operability of the back door 2 is the most. It is possible to attach the grip handle 3 to a position that is favorable, that is, at the lowest end of the door outer panel 5. Further, the work of removing the grip handle 3 can be easily performed from the outside of the back door 2.

Further, since the door inner panel 4 is not provided with a work hole 24 (see FIG. 4) unlike the conventional one, a cap member or a seal member for closing the work hole or the like is not required, and therefore the work hole 24 is not required. The number of parts and the number of assembling steps can be reduced correspondingly, and the cost can be reduced. Moreover, in the configuration of the present example, since the stud bolt 10 does not penetrate the door inner panel 4, water temporarily passes through the insertion portion of the stud bolt 10 inside the back door 2 (the door inner panel 4 and the door outer panel 5 are separated from each other). Even if it enters the space), the water is blocked by the door inner panel 4, and there is no possibility of entering the vehicle interior. Furthermore, since the gusset plate 8 is configured to be welded to the door outer panel 5, the rigidity of the mounting portion of the grip handle 3 can be improved by the presence of the gusset plate 8.

As described above, one embodiment of the present invention has been described.
The present invention is not limited to this embodiment, and various modifications and changes can be made based on the technical idea of the present invention. For example, the mounting position of the grip handle 3 is not limited to the lowermost end portion of the door outer panel 5, but may be set at a position as necessary. Also, the gusset plate 8
The entire outer surface of the gusset plate 8 without making a gap 9 between the door outer panel 5 and the door outer panel 5.
Alternatively, they may be welded to each other in a state of being joined.

[0019]

As described above, the present invention utilizes the bolt insertion hole formed only in the door outer panel of the back door and the combination member formed by welding the stud bolt to the gusset plate to provide a grip handle. Since it is configured so that it can be attached to the door outer panel from the outside of the back door, it is sealed (waterproof) with a weather strip, etc.
The grip handle can be easily attached to an appropriate location without changing the position of the sealing surface even at the location where the grip handle is attached. Therefore, according to the present invention, since the position of the sealing surface is not changed, the degree of freedom in designing the arrangement position of the grip handle can be improved. Further, the grip handle can be easily removed from the outside of the back door.

Further, since the door inner panel is not provided with a work hole or the like for attaching the grip handle, a closing member for closing the work hole or the like is not required. Therefore, by omitting the closing member, the number of parts and the number of assembling steps are reduced. Can be reduced and cost can be reduced.

Moreover, by mounting the gusset plate on the door outer panel, the rigidity of the grip handle mounting portion can be improved. In addition, since the door inner panel is not provided with work holes and the stud bolt does not penetrate the door inner panel, even if water enters the back door, this water will enter the vehicle interior. It is possible to prevent the occurrence of such troubles.

[Brief description of drawings]

FIG. 1 is a perspective view of a four-wheeled vehicle including a back door grip handle attachment structure according to the present invention.

FIG. 2 is a view showing a grip handle attachment portion of the back door of the above-mentioned four-wheeled vehicle, and is an arrow A in FIG.
It is a perspective view of the part shown by.

FIG. 3 is an enlarged sectional view taken along line BB in FIG. 2;

FIG. 4 is a sectional view similar to FIG. 3, showing a conventional back door grip handle attachment structure.

[Explanation of symbols]

 1 Four-wheeled vehicle 2 Back door 3 Grip handle 4 Door inner panel 5 Door outer panel 6 Bolt insertion hole 8 Gusset plate 10 Stud bolt 10a Screw part 10b Head part 11 Assembly member 12 Through hole 13 Mounting hole (bolt insertion hole) 14 Nut 15 Cover member 16 Weather strip

Claims (1)

[Claims] 1. A structure for attaching a grip handle to a back door of an automobile, which is formed by joining a door inner panel and a door outer panel in a closed cross-sectional shape, wherein a bolt insertion hole is formed only in the door outer panel of the back door, The gusset plate is attached to the inner surface of the door outer panel under the condition that the threaded portion of the stud bolt welded to the gusset plate is projected from the inner surface side of the door outer panel to the outer surface side of the door outer panel through the bolt insertion hole. Mounting, by fitting the mounting hole of the grip handle into the protruding thread portion of the stud bolt and screwing the nut, the grip handle is mounted to the back door in a tightened and fixed state. Mounting structure of the grip handle for the back door characterized by.