JPH0527345Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a system in which the end of a suspension arm, which constitutes a part of a suspension mechanism for a vehicle, is pivoted between a pair of vertical walls provided on a subframe. It relates to a support structure for supporting.

[Prior Art] FIGS. 4 and 5 show the end of a suspension arm, which forms part of a suspension mechanism for a vehicle and was previously disposed facing inward of the vehicle, in the width direction of the vehicle. A support structure is shown providing support to a subframe disposed along. FIG. 4 is an exploded perspective view showing the end of the suspension arm 24 and the subframe 10, and FIG. 5 is a sectional view taken along the - line in FIG. 4.

As shown in FIG. 4, a pair of vertical walls 12 and 14 are formed on the subframe 10, which is disposed along the vehicle width direction (direction of arrow C). These vertical walls 12 and 14 have substantially coaxial oblong through holes 16 and 18 formed therein. Further, a mounting pedestal 22 for attaching to the body is formed at the end of the upper wall 20 that connects the pair of vertical walls 12 and 14.

On the other hand, a cylindrical support portion 26 is formed at the tip of the suspension arm 24. This support portion 26 has a through hole 28 formed along the axial direction. The support portion 26 of this suspension arm 24
To support between the vertical walls 12, 14, the vertical walls 12,
14, and align the through hole 28 so as to be substantially coaxial with the through holes 16, 18 of the vertical walls 12, 14,
By inserting a bolt 30 into the bolt 18 and tightening it with a nut 32, the support portion 26 of the suspension arm 24 is supported on the subframe 10.

In this case, the dimension A between the vertical walls 12 and 14 is set to be 0.3 to 0.6 mm longer than the axial dimension B of the support portion 26. This makes it easy to insert the support portion 26 between the pair of vertical walls 12 and 14 in consideration of so-called assemblability.

Note that a multi-link support structure in a subframe as described above has been proposed in Japanese Utility Model Application Publication No. 60-66582.

[Problems to be solved by the invention] However, when the support part 26 is tightened between the pair of vertical walls 12 and 14 using the bolt 30 and the nut 32, the size (0.3 to 0.6 mm ), the vertical walls 12 and 14 are deformed in the direction in which they contact each other, and so-called assembly stress is generated in the pair of vertical walls 12 and 14. In this state, the subframe 10 supports the support portion 26 of the suspension arm 24. For this reason, in addition to this assembly stress, an external force is applied to the pair of vertical walls 12, 14 from the suspension arm 24, so the pair of vertical walls 12, 14 has ribs or the like to withstand these external forces. It has been reinforced.

However, if the ribs 34 and the wall thickness t are made thicker in order to reinforce the vertical walls 12 and 14, the vertical walls 12 and 14 will be less likely to deform. As a result, the tightening force when tightening and assembling increases, resulting in a problem that it becomes difficult to assemble the suspension arm 24 to the subframe 10.

The present invention has been made in consideration of the above facts, and an object of the present invention is to provide a suspension arm support structure that allows the suspension arm to be easily attached between a pair of vertical walls without deforming the subframe.

[Means for Solving the Problems] The present invention provides a suspension arm support structure in which the end of the suspension arm is pivotally supported between a pair of vertical walls provided on the vehicle body side. through holes provided substantially coaxially in each of the walls; a spacer inserted movably in the axial direction into the through hole provided in one of the vertical walls and having a through hole formed along the axial direction; The spacer is inserted through the through hole of the spacer, the end of the suspension arm, and the other through hole of the vertical wall, and the spacer is moved in the axial direction to sandwich the suspension arm between the spacer and the other vertical wall. and fastening means for supporting the end of the suspension arm between the pair of vertical walls.

[Operation] According to the present invention having the above configuration, after the end of the suspension arm is inserted between the pair of vertical walls, the fastening means is inserted into the through hole of the spacer, the end of the suspension arm, and the other of the pair of vertical walls. Insert into the through hole of
The spacer is moved in the axial direction, and the end of the suspension arm is held between the spacer and the other of the pair of vertical walls. Thereby, the end of the suspension arm is supported between the pair of vertical walls. In this support structure, since the spacer is movable in the axial direction when fastened by the fastening means, no force is applied to the pair of vertical walls in the direction of approaching each other, and the pair of vertical walls are not deformed.

In this way, with the present invention, the vertical wall does not deform and so-called assembly stress does not occur, so there is no need to reinforce the subframe, especially the vertical wall. Since the tightening force does not increase, the end of the suspension arm can be easily tightened.

[Embodiment] FIGS. 1 to 3 show an embodiment of a suspension arm support structure to which the present invention is applied. FIG. 1 is an exploded perspective view showing a part of the subframe 40 disposed along the vehicle width direction (direction of arrow C) and a suspension arm 42 supported by the subframe 40, and FIG. 2 is the same as the one shown in FIG. of-
FIG. 3 is a sectional view taken along a line showing a state in which the suspension arm 42 is supported by the subframe 40.

As shown in FIG. 1, the subframe 40 has a pair of side walls 44 and 46 formed therein. The upper portions of these side walls 44 and 46 are connected by a top wall 48, and a pedestal 50 for fixing to the body is formed on the top surface of the top wall 48.

A through hole 52 is formed in one side wall 46, and an oblong through hole 54 is formed in the other side wall 44. A spacer 56 is press-fitted into the through hole 54. Like the through hole 54, the spacer 56 is formed in an elliptical shape so that the spacer 56 does not rotate within the through hole 54.

The spacer 56 is knurled over the entire outer periphery, with increments formed along the axial direction. This improves insertability when press-fitting into the through hole 54. Further, a through hole 58 is formed in the spacer 56 along the axial direction, and a bolt 60 is inserted into the through hole 58.

Furthermore, reinforcing ribs 62 are formed on the peripheral walls of the end portions of the pair of side walls 44 and 46, respectively, over the entire area. Furthermore, reinforcing ribs 64 are formed along the vertical direction at intermediate portions of the side walls 44, 46. This improves the strength of the side walls 44, 46.

Further, a vertical wall 66 is formed between the pair of side walls 44, 46 to connect the side walls 44, 46, and reinforces the pair of side walls 44, 46.

On the other hand, the distal end of the suspension arm 42 inserted between the pair of side walls 44 and 46 is formed into a cylindrical shape and serves as a support section 68, and its axial length L is equal to the length L between the pair of side walls 44 and 46. Dimension between 46 M
It is set 0.3 to 0.6 mm shorter than the original. This improves the insertability of the support part 68 between the pair of side walls, and the support part 68 can be easily inserted between the pair of side walls 4.
It is designed to be inserted between 4 and 46.

As shown in FIG. 1, the support portion 68 has a through hole 70 formed along the axial direction, and a bolt 60 is inserted into the through hole 70.
0 is screwed into nut 72, thereby supporting the end of suspension arm 42 toward the pair of side walls 44, 46.

Here, the support portion 68 of the suspension arm 42
A case will be explained in which a case where the two side walls 44 and 46 are assembled between the pair of side walls 44 and 46 will be explained.

The support part 68 is connected to the through hole 70 and the through holes 56 and 52.
The pair of side walls 44 and 46 are positioned so that they are coaxial. From this state, the through holes 56, 70, 52
Insert the bolt 60 inside. Side wall 4 of bolt 60
Screw the nut 72 onto the tip protruding from 6,
Tighten. As the nut 72 is further tightened, the spacer 56 is inserted into the through hole 54 as shown in FIG.
The support member 68 moves toward the left side in FIG. 3, comes into contact with one of the axial end faces of the support portion 68, and is held between the side walls 46. As a result, the support portion 68 is connected to the pair of side walls 44,
Supported between 46 and 46.

Next, the operation of this embodiment will be explained.

When supporting the support part 68 of the suspension arm 42 between the pair of side walls 44 and 46, the support part 6
8 is inserted between the pair of side walls 44 and 46, and is supported by tightening with bolts 60 and nuts 72. During this tightening, the spacer 56 moves in the axial direction within the through hole 54 and is held between the side wall 46 and the supporting portion 68
is supported between a pair of side walls 44,46. In this embodiment, since the support portion 68 is supported by the side wall 46 and the spacer 56, the pair of side walls 44, 46
will not be deformed by tightening.

Further, since the spacer 56 is movable in the axial direction within the through hole 54, the side walls 44, 46 are not deformed by tightening, and there is no need for reinforcement for this purpose. Further, since the tightening force of the bolt 60 does not increase due to this, the tightening operation of the bolt 60 becomes easier.

[Effect of the invention] As explained above, there is a support structure for a suspension arm in which the end of the suspension arm is pivotally supported between a pair of vertical walls provided on the vehicle body side. a through hole provided coaxially; a spacer inserted movably in the axial direction into the through hole provided in one of the vertical walls and having a through hole formed along the axial direction; and a through hole in the spacer. and the end of the suspension arm and the other through hole of the vertical wall are inserted into the spacer, and the spacer is moved in the axial direction so that the suspension arm is sandwiched between the spacer and the other vertical wall. and fastening means for supporting the end of the suspension arm between the pair of vertical walls, so that the suspension arm can be easily installed between the pair of vertical walls without deforming the vertical walls. Has excellent effects.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view showing a part of the subframe arranged along the vehicle width direction and the suspension arm supported by this subframe, and Figure 2 is a cut along the - line in Figure 1. 3 is a sectional view showing the suspension arm supported by the subframe, FIG. 4 is an exploded perspective view showing the conventional subframe and suspension arm, and FIG. 5 is the same as in FIG. 4. FIG. 3 is a cross-sectional view taken along a line. 40...Subframe, 42...Suspension arm, 44, 46...Pair of side walls, 52,5
4...Through hole, 56...Spacer, 58...Through hole, 60...Bolt, 68...Support part, 70...
Through hole.

Claims (1)

[Scope of utility model registration request] A support structure for a suspension arm that pivotally supports an end of the suspension arm between a pair of vertical walls provided on the vehicle body side, a through hole provided substantially coaxially in each of the pair of vertical walls; a spacer that is movably inserted into a through hole provided in one of the vertical walls and has a through hole formed along the axial direction; a through hole of the spacer, an end of the suspension arm, and the spacer; The spacer is inserted through the other through hole of the vertical wall, and the spacer is moved in the axial direction, and the suspension arm is sandwiched between the spacer and the other vertical wall, so that the end of the suspension arm is moved between the pair of vertical walls. A support structure for a suspension arm, comprising: fastening means for supporting the suspension arm.