JPS5936538Y2 - Vehicle engine support structure - Google Patents

Description

[Detailed description of the invention] This invention relates to the engine support structure of vehicles such as automobiles, and particularly relates to the structure near the joint between the cross member and the vehicle body frame (hereinafter referred to as the member joint). be.

First, the conventional structure of the member joint will be explained with reference to FIGS. 1 and 2. FIG. 1 is a plan view of the left member joint of a right-hand drive vehicle, and the arrow FWD indicates the vehicle body. The front is shown, and FIG. 2 is a rear view of the same.

First, the cross member 1 is formed by a member main body 2 and an engine mount bracket 3 which is superimposed and welded to the top surface of the end of the main body 2, and the side ends of both members 2, 2. In order to receive a large load from an engine (not shown) acting on the bracket 3, the closer portions are each formed wider than the central portion of the member body 2.

At the side end of member 1, two bolt holes are drilled at the front and rear, passing through both members 2 and 3.
is connected to the frame 4 by being fastened to the lower ends of two bolts 6 with plates 5 that pass downward through the left frame 4 of the vehicle body.

On the other hand, a support 7 made of an L-shaped piece is fastened with two bolts 8 to the inner surface of the frame 4 behind the fastening point of the member 1, and an idler arm 9 of the steering linkage is attached to the support 7. is supported by a bearing, and the front end, that is, the movable end of the arm 9 faces close to the rear of the member 1.

In the structure of the conventional member joint formed in this way,
It is difficult to design a space between the cross member 1 and a partition wall (not shown) at the front end of the vehicle compartment located behind the idler arm 9 to reduce the front-rear distance between the cross member 1 and the partition wall at the front end of the vehicle compartment. In this structure, the steering linkage as well as the steering wheel must be moved forward, which is impossible because the idler arm 9 hits the member 1.

For this reason, in the conventional structure, the space design at the front of the vehicle body is severely restricted, and the shape of the member body 2 becomes more complicated due to widening at the ends, which reduces the material yield and other aspects of manufacturing of the cross member 1. As a result, the weight and manufacturing cost of the cross member are unnecessarily increased.

The present invention solves the above drawbacks by devising the molding shape of the cross member.In other words, the purpose of the present invention is to shorten the space between the cross member and the front wall of the passenger compartment. Moreover, it is an object of the present invention to provide an engine support structure for a vehicle that can reduce the weight and cost of a cross member.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

In the member connection portion in the engine support structure of the embodiment, as shown in FIGS. 3 to 5, a cross member 11 is bridged between the left frame 4 and the right frame (not shown).
The member main body 12 has a U-shaped cross section with a flange, and its width is approximately the same from the middle part to the ends.

Thus, the engine mount bracket 13, which is extended and overlapped in a raised manner on the upper surface of the end portion of the member main body 12, has portions 13a near both ends in the longitudinal direction of the member.

13b is welded to the top and side surfaces of the main body 12, and the parts on the sides from the inner welded part 13a are made to be more rigid than the main body 12 so that they can bear sufficient rigidity to receive the large load of the engine (not shown). It is formed wide so as to protrude in the front-rear direction.

In addition, the lower surface of the intermediate portion between the image portions 13a and 13b has both front and rear sides curved and cut off to a medium height, and the cut green 13C is hollowed out sufficiently higher than the upper surface of the main body 12.

Furthermore, the side end portion 13b of the bracket 13 has two
Bolt holes are drilled at the locations, and plate 5 is inserted into the bolt holes.
The attached bolt 6 is inserted and tightened with a nut 10, so that only the bracket 13 is attached to the frame 4.
is bolted to.

Next, a support 7 is fastened to the inner surface of the frame 4 with two bolts 8, as in the conventional structure described above, but the fastening point is at a position close to the member 11 side. In other words, the movable end 9a of the idler arm 9, which is supported by the support 7, sneaks in from below the cut-off edge 13C and faces the lower part of the bracket 13. As shown in FIGS. 3 and 5, the projections are partially overlapped and projected.

In the engine support structure of the embodiment configured in this way, even if the member main body 12 has approximately the same width over its entire length, the strength of the member 11 is compensated by the wide bracket 13, so that the member The rigidity of member 11 is the same as that of member 1 of the conventional structure, and on the contrary, since it has a simple shape with a slate width, it has the advantage of improving material yield and workability when manufacturing the member body 12, and also eliminates unnecessary material. Weight increase is eliminated.

In addition, since the steering linkage is arranged close to the member 11, there is no need to create an unnecessary gap between the member 11 and the partition wall at the front end of the passenger compartment, which has the advantage of freeing up space design. .

By the way, the structure of the above-mentioned embodiment has been exemplified as a structure related to a member coupling portion that contacts the idler arm 9 in the steering linkage, but the reason for this is that in a general vehicle body structure, the pitman arm symmetrical to the idler arm 9 is Because it is placed laterally than the frame, there is no risk of the pitman arm coming into contact with the cross member even if the linkage is brought close to the cross member. When arranged inwardly, the same effect as described above can be obtained by constructing the member coupling portion on the pitman arm side in the same manner as described above.

As described above, according to the engine support structure according to the present invention, the engine mount bracket is formed to be wider than the member body, and the bottom surface of both ends of the bracket is positioned above the top surface of the member body. Since it is formed in an upward shape so that the contact with the linkage arm is avoided, it is possible to reduce the weight of the cross member and make it more economical to manufacture it, as well as making it easier to design the space at the front of the vehicle body. In addition, it has the effect of improving the design efficiency and economic efficiency of the engine support structure, such as by making it easier to design the space at the front of the vehicle body.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the main part of the conventional engine support structure, FIG. 2 is a rear view of the main part of the conventional engine support structure, and FIG.
4 is a rear view of the main part of the engine support structure showing an embodiment of the present invention, and FIG. 5 is a perspective view of the same. It is a diagram. 4...Frame, 9...Idler arm forming part of linkage, 11...Cross member, 12...
Main body, 13...Engine mount bracket, 13
C...Cut edge-

Claims (1)

[Scope of claim for utility model registration] A member body that bridges between the left and right frames extending in the longitudinal direction of the vehicle body in front of the passenger compartment, and an engine mount that is fixed to both ends of the member body to support the engine. In the engine support structure of a vehicle having a cross member including a bracket, the engine mount bracket has both ends in the vehicle width direction fixed to the member body, and is wider than the member body so as to protrude in the longitudinal direction of the vehicle body. The engine mount is formed in a raised shape such that the lower surface between both ends is located above the upper surface of the member main body, and the engine mount is attached to the steering linkage that is located rearward of the member main body in the longitudinal direction of the vehicle body. An engine support structure for a vehicle, characterized in that the brackets are configured to partially overlap and project in a plan view.