JPH04109657U - Automotive bumper mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] To maintain a uniform and constant gap between the top surface of the bumper and the body end. [Structure] An attachment 1 having an inverted U-shape is attached so as to straddle the mounting bracket 21 provided at the tip of the chassis frame 2, and the elongated hole 211 provided in the side wall of the mounting bracket 21,
Mounting hole 11 provided in side wall portion 13 of attachment 1
After adjusting the vertical position of the attachment 1 by adjusting the position of the bumper 4, the bumper 4 is mounted on the attachment 1. [Effect] By adjusting the relatively small and lightweight attachment, the gap T between the bumper top surface and the body end can be kept uniform and constant, improving work efficiency.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to bumpers for automobiles, and is particularly applicable to bumpers with a chassis frame. This article relates to the mounting structure of the bumper on the chassis frame of an automobile. be.

0002

[Conventional technology]

In general, cars with chassis frames are From the point of view of buffering, it is functional that the bumper is attached to the chassis frame side. preferable. Taking these things into consideration, many automobiles (with chassis frames) The structure is such that the bumper is attached to the chassis frame side. by the way, In automobiles with the chassis frame mentioned above, the body (body) is mounted on the chassis frame. In order to prevent vibration and noise, elastic support, i.e. An elastic mounting method is used. For this reason, the above chassis frame side and upper Relative displacement between the vehicle body and the vehicle body is controlled via the elastic mounting section. arise. Therefore, the bumper attached to the above chassis frame and the above body It is necessary to provide a certain gap between the side members, for example, the body end. be. Generally, in automobiles with the above-mentioned chassis frame, as shown in Fig. 5, Between the upper surface of the bumper 4 and the lower end of the body end portion 31, there is provided an elastic material. A gap T is provided in consideration of the amount of displacement of the mounting device (not shown). It has become a reality.

0003

[Problem that the idea aims to solve]

Incidentally, the above-mentioned gap is likely to vary in size. because , the body made of sheet metal is mounted on the chassis frame via an elastic mounting device. This is because the configuration is equipped with Therefore, depending on the vehicle, the gap If the gap is too large, or if the gap is too small, the top surface of the bumper and, for example, the body. There is interference between the front end of the There may be cases where the product is damaged or damaged. Even if these gaps do not reach the specified values, Regarding this, adjust the mounting part between the bumper and the chassis frame to maintain a certain gap Adjustments are being made to obtain the following. However, the above adjustment work Because it is large and heavy, it is extremely difficult and has poor workability. . The purpose of this invention is to improve workability and work efficiency. (title).

0004

[Means to solve the problem]

In order to solve the above problems, the present invention proposes an automobile with a chassis frame. In the case of a structure in which a bumper is attached to the chassis frame side, , mounted integrally with the chassis frame at the tip of the chassis frame. A bracket is provided on the side of the mounting bracket, which can be adjusted vertically. Provide a long hole above the mounting bracket and place it in the mounting bracket. An attachment is provided so as to straddle the racket, and the balance is The configuration is such that the pump is attached to the attachment, and the attachment When attaching the body to the above mounting bracket, make sure to Adjust the attachment so that the reference surface of the We decided to adopt a configuration in which the vertical position of the top surface of the product can be adjusted.

[0005]

[Effect]

By adopting the above configuration, as shown in FIG. - (vehicle body) 3 is mounted on the top of the chassis frame 2. When installing the bumper 4, first install the on the mounting bracket 21, straddling the mounting bracket 21. Attach attachment 1 as shown (temporarily), then attach the jig as shown in Figure 4. 7 on the already mounted body end part 31, and then as shown in Fig. 2. , so that the lower end surface of the jig 7 and the upper surface of the attachment 1 are in contact with each other. It is assumed that the attachment 1 is adjusted in the vertical direction. Note that this vertical adjustment The work is done using the elongated hole 211 provided on the side wall of the mounting bracket 21. will be carried out. In this way, the relatively lightweight attachment 1 can be installed separately on the left and right sides. By moving the bumper 4 in the vertical direction, the upper surface of the bumper 4 and the body end portion 3 1 can be kept constant.

[0006]

【Example】

An embodiment of the present invention will be described based on the drawings. The configuration of this example is shown in Figure 1. In a car with a chassis frame, the car is placed on the chassis frame 2. The body 3 is mounted via an elastic mounting device (not shown). It is something that At the tip of the chassis frame 2 above, there is a mounting bracket. 21 is integrally attached to the chassis frame 2 by welding etc. The side wall of the mounting bracket 21 has a long hole 211 extending vertically. It is provided. Above this mounting bracket 21, there is a The attachment 1 is attached so as to straddle the mounting bracket 21.

[0007] As shown in Fig. 3, the attachment 1 has an inverted U-shape. The upper part has a flat part, and the flat part has a bumper mounting part for attaching the bumper 4. A plurality of holes 12 are provided. In addition, from both ends of the above flat part, there is a A side wall portion 13 is provided, and the mounting bracket is mounted on both side wall portions 13. A through bolt is installed along with the elongated hole 211 provided in the side wall of the bracket 21. A mounting hole 11 is provided for the purpose. Note that the spacing between the both side wall portions 13 is based on the above-mentioned map. The width of the mounting bracket 21 is slightly wider than that of the mounting bracket 21. Ru.

[0008] The installation of the mounting bracket 21 and the attachment 1 is as follows. Mounting hole 11 provided in side wall portion 13 of attachment 1 and the above mounting Align with the elongated hole 211 provided in the side wall of the bracket 21, and insert both holes 11, A structure in which the side walls having 211 are connected and fixed using through bolts (not shown). It has become a reality. Place the bumper 4 on top of the attachment 1 fixed in this way. It is configured to be equipped with.

[0009] The bumper installation procedure for the bumper mounting part with the above configuration, and the bumper top surface and body. The procedure for adjusting the gap T with the end portion 31 will be explained. As shown in Figure 1, the chassis With the body 3 already mounted on the frame 2, as shown in FIG. Attachment 1 is set in an inverted U shape, and attached to the tip of chassis frame 2. on the mounting bracket 21, straddling the mounting bracket 21. The attachment hole 11 provided in the side wall portion 13 of the attachment 1 and Align with the elongated hole 211 provided in the side wall of the mounting bracket 21. , temporarily fasten the attachment 1 with a through bolt or the like.

0010 Next, a jig 7 whose mounting part has a crank shape as shown in Fig. 4 is attached to the body. Attach it to the body end portion 31 of No. 3. After that, as shown in Fig. 2, the jig 7 is The lower end has already been temporarily fixed to the mounting bracket 21 of the chassis frame 2. Attachment 1 on each side so that it makes contact with the top surface of Attachment 1. Adjust point 1 vertically. At this time, the through bolt that has already been installed is Up and down inside the elongated hole 211 provided in the side wall of the mounting bracket 21. By moving in this direction, the adjustment work described above will proceed. In addition, The dimension between the mounting reference surfaces of the jig 7 is a predetermined value L, as shown in Fig. 2. So, if you follow the above installation procedure, the body end part 31 and the top surface of the attachment 1 will be , will be set to a predetermined size. After this L dimension is set, the above If the bumper 4 is mounted and fixed on the patch 1, the top surface of the bumper 4 and the body end 31, a constant value T is always obtained.

[0011]

[Effect of the idea]

According to the present invention, the side wall of the mounting bracket at the tip of the chassis frame is Create a long hole, temporarily fix the bumper mounting attachment through the long hole, and then After that, set the specified mounting reference surface distance L to the body end of the body that is already installed. Place the jig with the jig, and connect the lower end of this jig with the attachment Adjust the vertical position of the above attachment by bringing it into contact with the top surface, After that, we decided to install the bumper on the adjusted attachment. The gap T between the top surface of the pump and the body end can always be kept constant, and the gap It is now possible to always obtain a constant width that does not differ between the left and right sides. moreover, The above adjustment work is performed by operating a relatively small and lightweight attachment. This not only makes adjustment work easier, but also improves work efficiency. Ta.

[Brief explanation of drawings]

FIG. 1 is an assembly diagram showing the configuration of the present invention.

FIG. 2 is a diagram showing how to adjust the attachment in the vertical direction according to the present invention.

FIG. 3 is a diagram showing the structure of the attachment according to the present invention.

FIG. 4 is a diagram showing the structure of a jig according to the present invention.

FIG. 5 is a diagram showing a gap T between the body end and the top surface of the bumper in the present invention.

[Explanation of symbols]

1 Attachment 11 Mounting hole 12 Bumper mounting hole 13 Side wall part 2 Chassis frame 21 Mounting bracket 211 Long hole 3 Body (vehicle body) 31 Body end part 4 Bumper 5 Engine 6 Radiator 7 Jig

Claims (1)

[Scope of utility model registration request] Claim 1: In a bumper mounting part of a vehicle with a chassis frame in which the bumper is mounted on the chassis frame side, an elongated hole extending vertically is provided in the side wall of the mounting bracket provided at the tip of the chassis frame. The bumper is characterized by having an inverted U-shaped attachment having a mounting hole in the side wall that allows vertical position adjustment in conjunction with the bumper, and a bumper mounted on the chassis frame through the attachment. Bumper mounting structure for automobiles with chassis frames.