JPH01148618A - Bolt fitting structure for vehicle external part - Google Patents

Abstract

PURPOSE:To enable a bolt to be easily and securely fitted to an external part by providing a fitting boss to an external part such as a door handle or the like, and forming a groove part of a dovetail-shaped section in the fitting boss, so that the bolt can be inserted into this groove part. CONSTITUTION:An external part, for example, a door handle 2 of a vehicle comprises a handle body, a handle cover 5 and a bolt 6. And the bolt 6 is inserted in the fitting boss 7 of the handle cover 5. In this case, a groove part 10 of a dovetail-shaped section is formed in the fitting boss 7, so that it can be engaged with both the head part 8 of the bolt 6 inserted sideways thereinto and the base part 91 of the screw part 9, and that the upper part 92 of the screw part 9 can be projected above the boss. And the bolt 6 is inserted into the groove part 10, and the bolt 6 is fitted to the door handle 2. Thus, the bolt 6 can be easily and securely fitted to the external part 2.

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a bolt mounting structure, particularly a vehicle door handle,
Concerning the mounting structure of mounting bolts for covers, etc.

b. Conventional technology Conventionally, door handles are made of resin molded products or cast metal.

For the mounting bolts of covers, place the bolts in a mold in advance and mold and fix them together by means such as injection molding, or support the bolts between back electrodes and apply ultrasonic waves while pressurizing them. It was fixed to door handles, etc. by means of welding using ultrasonic vibration.

The mounting bolt fixed by the above means has a structure as shown in FIG.

That is, the head 102 of the mounting plate 101 is fixed to, for example, the mounting boss 104 of the door handle 103 in a buried state, with no play at all.

Problems to be Solved by the C0 Invention However, according to the above-mentioned conventional mounting means, in the case of integral molding, the cooling rate around the inserted bolt is faster than other parts, which tends to cause stress concentration and cracks. could have occurred.

Furthermore, when using ultrasonic welding, it takes a lot of man-hours to set it up, which inevitably leads to high costs.

Furthermore, the mounting bolts fixed using the above method have no play and are not flexible, so if the position of the mating hole is even slightly shifted, it will become difficult to install. was.

The present invention has been developed in view of the various problems mentioned above, and its purpose is to provide a bolt mounting structure that is simple, quick, and flexible.

d. Means for solving the problems In order to solve the above-mentioned problems, the gist of the present invention is as follows:
In a bolt mounting structure for attaching an exterior part to a vehicle body, a mounting boss is provided on the exterior part, the head of the bolt and the base of a threaded part engage with the mounting boss from the side, and the threaded part is engaged with the mounting boss from the side. A vehicle exterior component, characterized in that a groove having a dovetail cross-section into which a bolt is inserted is formed so that the upper part of the bolt can protrude from the end face of the mounting boss, and the bolt is locked to the exterior component by fitting the bolt into the groove. It has a bolt mounting structure.

e. Example Hereinafter, an example of the bolt mounting structure according to the present invention will be described.
The accompanying drawings will be described in detail with reference to FIGS. 1 to 6.

FIG. 1 is a diagram showing the mounting position of a door handle, which is an exterior part of a vehicle, and FIGS. 2 and 3 are a plan view and a front view of the door handle, respectively.

In the figure, 1 is a vehicle body, and 2 and 3 are door handles attached to the vehicle body.

The door handle 2 includes a handle body 4, a handle cover 5 supporting the handle body 4, bolts 6 attached to the handle cover 5, and the like.

The bolt 6 is attached by fitting into an attachment boss 7 provided on the handle cover 5, as shown in FIGS. 4 and 5.

To explain the mounting structure of the bolt 6 in more detail based on the drawings, the head 8 of the bolt 6 and the base 9I of the threaded portion 9 engage with the mounting boss 7 from the side thereof, and the threaded portion 9
A groove 10 having a dovetail-shaped cross section into which the bolt 6 is inserted is formed so that the upper part 9□ of the handle cover 5 can protrude from the end surface of the mounting boss 7. The handle cover 5 is attached to the handle cover 5 by fitting the bolt 6 into the groove 10.

Reference numeral 11 denotes a gasket inserted between the vehicle body 1 and the handle cover 5, and the gasket 11 includes bolts 6.
A perforation 12 is provided into which a threaded portion 9 can be inserted.

Projections 13 having the same size as the root diameter of the threaded portion 9 are formed in several places in the perforation 12, and when the projections 13 engage with the threaded portion 9 of the bolt 6, the packing 11 is temporarily closed. A stop is made. .

The bolt 6 fitted into the groove lO is inserted in the insertion direction (fourth direction).
However, the shape of the groove 10 is dovetail-like in cross section (see FIG. 6) in which the head 8 of the bolt 6 and the base 91 of the threaded portion 9 can engage. Although there is some play because of this, movement in the upward/downward direction and in the left/right direction in FIG. 6 is prevented.

f. Effects of the Invention According to the bolt mounting structure according to the present invention, there is no need to worry about micro-cracks occurring around the bolt due to the insert method.
Also, unlike ultrasonic welding, the number of man-hours required is small, which can contribute to cost reduction.

In addition, since the bolts are fitted into mounting bosses provided on the exterior parts, there is flexibility in bolt positions.
To easily attach an exterior part to a vehicle body even if a mounting hole provided in the vehicle body is slightly misaligned.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the mounting position of a door handle, which is an exterior part of a vehicle, and FIGS. 2 and 3 are a plan view and a front view of the door handle, respectively. 4 is a sectional view taken along the line A-A in FIG. 3 showing a mounting structure according to an embodiment of the present invention, FIG. 5 is an exploded perspective view of the embodiment shown in FIG. 4, and FIG. B-
A sectional view taken along line B and FIG. 7 are sectional views showing a conventional bolt mounting structure. 1...Vehicle body, 2.3...Door handle,
4... Handle body, 5... Handle cover, 6
...Bolt, 7...Mounting boss, 8...Bolt head, 9...Bolt thread part, 10...Groove part, 11...Putskin, 12...Drilling,
13...Protrusion. Figure 5 Figure 7

Claims (1)

[Claims] In a bolt mounting structure for attaching an exterior part to a vehicle body, a mounting boss is provided on the exterior part, the head of the bolt and the base of a threaded part engage with the mounting boss from the side, and the threaded part is engaged with the mounting boss from the side. A vehicle exterior component, characterized in that a groove having a dovetail cross-section into which a bolt is inserted is formed so that the upper part of the bolt can protrude from the end face of the mounting boss, and the bolt is locked to the exterior component by fitting the bolt into the groove. Bolt mounting structure.