JPS625930Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an attachment structure for attaching a hinge to a vehicle body such as an automobile, and particularly to a hinge attachment structure suitable for attaching a door hinge.

Speaking of door hinges, the generally known mounting structure is one in which the door hinge is fixed to the door, pillar, etc. with screws.
This type is not so desirable from the viewpoint of installation workability and weight reduction, and in recent years, as an alternative to this type of installation structure, a type of door hinge that is welded and fixed to the door, pillar, etc. Many things are now being adopted.

As shown in FIG. 2, the conventional door hinge mounting structure for such a welding type is to arrange a rain force 3 on the back surface of the hinge plate abutment part of the door inner panel 2 which is hemmed to the door outer panel 1, and A mounting hole 5 is formed in the door inner panel 2, and a hinge plate 4 is directly welded to the reinforcement 3 through this mounting hole 5.

However, in such a conventional welding type door hinge mounting structure, the opening peripheral dimension l of the mounting hole 5 is larger than the external dimension L of the rain force abutting part of the hinge plate 4. The periphery is directly exposed to the outside, which not only deteriorates the appearance quality when the door is opened and closed, but also allows rainwater to enter the mating surface between the periphery of the mounting hole 5 and the rain force 3, causing rust around the mounting hole 5 and damage to the support. The problem was that the strength was easily weakened.

This invention was devised in view of the current situation, and its purpose is to maintain the mounting strength of the hinge plate by improving the sealing performance at the mounting site of the hinge plate, and also to improve the appearance quality. The present invention is intended to provide a hinge mounting structure that can be used in various ways.

In order to achieve this purpose, in this invention, mounting holes are formed in the vehicle body panel, a hinge reinforcement is provided on the back side of the vehicle body panel, and the hinge plate and the hinge reinforcement are welded. In the hinge mounting structure fixed to the hinge plate and the vehicle body panel, the opening peripheral dimension of the mounting hole is formed to be smaller than the external dimension of the hinge plate, and the mounting hole is located within a projected plane from the hinge plate. The hinge plate is arranged on the surface side of the vehicle body panel so that the hinge reinforcement is formed with a hole or a bulge having a circumferential dimension that is approximately the same as the opening circumferential dimension of the mounting hole. The hinge plate is arranged on the back side and welded across the hinge plate, the periphery of the mounting hole of the vehicle body panel, and the periphery of the hole or bulge of the hinge reinforcement, so that the hinge plate is It is configured to be fixed to the vehicle body panel.

Hereinafter, this invention will be described in detail based on embodiments shown in the accompanying drawings.

In the first embodiment shown in FIG. 3, the outer edge of the door inner panel 2 is hemmed to the door outer panel 1 as shown in FIG. A reinforcing reinforcement 3 is fixed by spot welding or the like, and an attachment hole 5 for attaching the hinge plate 4 to the reinforcement 3 is provided in the hinge plate abutting portion.

As shown in FIG. 3, the opening peripheral dimension l of this mounting hole 5 is formed to be smaller than the external dimension L of the rain force abutting portion 4a of the hinge plate 4. No. 3 bulges 3a are fitted together. The bulging portion 3a has a circumferential edge dimension that is approximately the same as the circumferential edge dimension L of the mounting hole 5 described above.

Therefore, when attaching the hinge plate 4 to the door, the hinge plate 4 should be attached to the hinge plate 4.
The hinge plate 4 is arranged on the surface side of the vehicle body panel 2 so that the mounting hole 5 is located in the projection plane from
The rain force contact part 4a of the rain force 3
The periphery of the hinge plate 4 is welded so as to abut against the bulged portion 3a of the hinge plate 4. In this case, a slight gap is formed between the reinforcement abutment part 4a of the hinge plate 4 and a step formed around the periphery of the bulging part 3a of the reinforcement 3, and the above-mentioned welding is performed through this gap. Therefore, the hinge plate 4 is integrally and directly welded and fixed astride the door inner panel 2 and the reinforcement 3.

In the door hinge mounting structure according to this embodiment, as explained above, the opening peripheral dimension l of the mounting hole 5 is formed to be smaller than the outer dimension L of the rain force contact portion 4a of the hinge plate 4, and the hinge plate 4 is arranged on the surface side of the vehicle body panel 2 so that the mounting hole 5 is located on the projection plane from the hinge plate 4, the mounting hole 5 is not exposed to the outside, and the appearance quality is improved, and the hinge plate 4 is door inner panel 2 and rain force 3
Since it is integrally welded and fixed to the hinge plate 4, the reinforcing strength of the hinge plate 4 is improved, and since the edge of the mating surface between the periphery of the mounting hole 5 and the reinforcement 3 is not exposed to the outside, it is possible to ensure sealing performance. .

FIG. 4 shows a second embodiment of this invention. In this embodiment, a hole 3 is provided in the rain force 3 which is concentric with the mounting hole 5 and has approximately the same peripheral dimension.
0 is opened, and the hinge plate 4 is arranged on the front side of the vehicle body panel 2 so that the mounting hole 5 is located on the projection plane from the hinge plate 4, and the hinge plate 4 is connected between the mounting hole 5 and the hole 30. In addition to further improving sealing performance and appearance quality by integrally welding the joint end and configuring it so that welding dents are not exposed to the outside, the other configurations, functions, and effects are the same as those described in Section 1 above. Since it is completely the same as the first embodiment, the same reference numerals as in the first embodiment are used in the drawings, and detailed explanation thereof will be omitted here.

FIG. 5 shows a third embodiment of this invention. In this embodiment, similarly to the second embodiment, a hole 30 is provided in the reinforcement 3, which is concentric with the mounting hole 5 and has approximately the same circumferential dimension. A protrusion 40 having an external dimension L' smaller than the opening peripheral dimension l of the mounting hole 5 and the hole 30 is formed in the reinforcement contacting part 4a of the hinge plate 4, and this protrusion 4
0 into the mounting hole 5 and hole 30, the protrusion 4
The hinge plate 4 is fixed by welding the peripheral edge of 0 and the mating end surfaces of the mounting holes 5 and 30,
This structure simplifies the installation work of the hinge plate 4, but other structures, functions, and effects are the same as those of the second embodiment.

Note that the hinge plate 4 used in the description of each of the above embodiments indicates the movable hinge plate of the hinge consisting of a movable hinge plate and a fixed hinge plate, and in each of the above embodiments, this invention Although the invention has been described using an example in which the invention is applied to a door hinge, the present invention is not limited thereto, and can also be applied to the mounting structure of a fixed side hinge plate and other hinge opening/closing bodies.

Since this invention includes the above configuration, it has the effect of improving the sealing performance and appearance quality at the hinge plate attachment site, and maintaining the hinge attachment strength over time.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a door showing the structure around the mounting part of the door hinge to which this invention is applied, and Fig. 2 is Fig. 1A showing the mounting structure of the conventional door hinge.
3 to 5 are sectional views taken along the line A-A in FIG. 1, showing the door hinge mounting structure according to the first to third embodiments of this invention. 2...Door inner panel (vehicle body panel), 3
...Rain force, 4...Hinge plate, 4
a... Vehicle body panel contact part (reinforce contact part), 5... Mounting hole, l... Opening circumference dimension of mounting hole, L... External dimension of vehicle body panel contact part.

Claims (1)

[Scope of utility model registration request] A hinge in which a mounting hole is formed in a vehicle body panel, a hinge reinforcement is provided on the back side of the vehicle body panel, and the hinge plate and the hinge reinforcement are welded to fix the hinge plate to the vehicle body panel. In the mounting structure, the opening peripheral dimension of the mounting hole is formed to be smaller than the external dimension of the hinge plate, and the hinge plate is placed on the surface side of the vehicle body panel so that the mounting hole is located within a projection plane from the hinge plate. On the other hand, a hinge reinforcement having a hole or a bulge having a circumferential dimension substantially the same as the opening circumferential dimension of the mounting hole is disposed on the back side of the vehicle body panel, and A hinge characterized in that the hinge plate is fixed to the vehicle body panel by welding across the periphery of the attachment hole of the vehicle body panel and the periphery of the hole or bulge of the hinge reinforcement. Mounting structure.