JPS62283073A - Frame composition for automobile - Google Patents

Abstract

PURPOSE:To improve the assembly work without producing a welding distortion, by composing the frame to install car body side members and suspension trailing arms to a chassis through supporting metals. CONSTITUTION:At the center of a supporting metal 5 installed between two cross members 3 and 3 which project to the outside of a side member 1, a recess 12 is formed, and in the hole 13 of the recess 12, a car body side member 14 is fastened by a bolt 16 with a nut 20 through mount rubbers 17 and 18. And to an axle pipe 21, a U-shape bracket 24 is installed, and both ends of a suspension trailing arm 25 are installed to the bracket 25 and near to the front end of the supporting metal 5 by shafts 26 and 27 respectively. Since the car body is held in such a way, and the supporting metal to shaft the front end of the suspension trailing arm can be installed without welding in the conventional method, there is no room of producing a welding distortion, and no deterioration of strength from the welding. Furthermore, the assembly work is improved.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention "Field of Industrial Application" This invention is an automobile that reduces welding distortion of the chassis frame body, increases strength, and improves assembly workability. The present invention relates to a frame device.

``Prior Art'' In automobiles that use a chassis frame, the chassis frame supports the vehicle body, and an axle shaft is coupled to the chassis frame. For this purpose, a number of brackets are attached to the side members of the chassis frame by welding, the vehicle body is supported by these brackets, and an axle shaft is connected to another bracket.

``Problems to be Solved by the Invention'' In the structure in which the platen is attached to the side member by welding as described above, welding distortion is likely to occur in the main body of the chassis frame, especially the side member, and it is difficult to maintain a certain strength. The problem was that it was difficult to assemble, and since there were a large number of parts, it was difficult to assemble. This invention was made with the aim of solving these problems.

"Means for Solving the Problems" The means configured by the present invention to solve the above problems is to make two cross members protrude outward from the side members of the chassis frame, and to cross the two protruding cross members. A support fitting in the direction along the side member is installed between the members by bolting and fitting, and the vehicle body and
The front end of the suspension trailing arm from the axle shaft was attached.

``Function'' With this configuration, the support metal fitting that supports the vehicle body and pivots the front end of the suspension trailing arm can be attached without welding as in conventional methods, so there is no room for welding distortion. Furthermore, there is no decrease in strength due to welding, and the workability of assembly is improved.

"Embodiment" Next, an embodiment of the present invention will be described with reference to the drawings. 1st
In the figure, one side (front side) of the chassis frame 20 shown in FIG. 2, which is a 1Fi side member, is shown. The chassis frame 2 has two side members 1, 1
, several vM cross members 3, 3 . It is composed of... As shown in an enlarged view in Fig. 1, one of the cross members 3 is a square pipe, and together with the round pipe cross member 6 at the rear, the ends protrude outward from the side members 1 and are welded. 4, it is fixed to the side member 1.

A support fitting 5 is disposed between the cross members 3, 3 in a direction along the side member 1, and its front end is fixed to the square pipe cross member 3 with a port 6 and a nut 7, as shown in FIG. As shown in FIGS. 1 and 4, the rear end of the support fitting 5 is fitted onto the round pipe cross member 3 and fixed by tightening with bolts 8. The bolt 8 passes through a bottom plate 1o fixed to the support fitting 5 by welding 9, and is screwed into a screw hole 11 formed in the cross member 3.

In this way, the support fitting 5 is installed between the two cross members 3, 3 protruding outside of the side member 1.
A recess 12 is formed in the center of the recess 12.
As shown in FIG. 5, a port 16 fixed to the vehicle body side member 14 by welding 15 is inserted into the hole 13 provided in the hole 13 through the mount rubber 17, and the other mount rubber 18
and a washer 19, and are tightened with nuts (20).

In FIG. 6, the reference numeral 21 indicates an axle pipe, and a rear wheel 22, 22 is attached to an axle shaft (not shown) provided inside the axle pipe. A driving force is applied to the axle shaft by the differential device 23.

A U-shaped bracket 24 is attached to the axle pipe 21 facing forward, and shafts 26 and 27 are attached to both ends of the suspension trailing arm 25 to the bracket 24 and a portion near the front end of the support fitting 5. It is installed by

In this frame device configured in this way, the vehicle body side)
Since the member 14 and the suspension trailing arm 25 are attached to the chassis frame 2 via the support metal fitting 5, the transmission of driving force and the support of the vehicle body are performed by the chassis frame 2 via the support metal fitting 5.

"Effects of the Invention" As explained above, the present invention allows the vehicle body side member 14 and the suspension trailing arm 25 to be connected to each other by the supporting metal fitting 5.
Since it is configured to be attached to the chassis frame 2 via the welding mechanism, there is no welding distortion that occurs in the conventional case. Furthermore, since the support fitting 5 is attached by bolting and fitting, the assembly work efficiency is significantly improved.

Furthermore, the shape of the part can be taken freely, and it is also advantageous in terms of strength.

[Brief explanation of drawings]

FIG. 1 is a perspective view of essential parts of an embodiment of the present invention, FIG. 2 is a perspective view of a chassis frame, FIG. 3 is a sectional view taken along line 1-1 in FIG. 1, and FIG. A rear view of a part of Figure 1 seen from the direction of the arrow
A sectional view taken along line V-VB in the figure, and FIG. 6 is a plan view of a chassis frame to which the present invention is applied.

Claims (1)

[Claims] 1) Two cross members are made to protrude outward from the side members of the chassis frame, and a support fitting in the direction along the side members is attached between the two protruding cross members by bolting and fitting, and the support is provided. An automobile frame device characterized in that a vehicle body and a front end of a suspension trailing arm from an axle shaft are attached to a metal fitting.