JPH0510170U - Suspension mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] When attaching a suspension arm extending in the left-right direction of the vehicle body and a strut extending in the up-down direction of the vehicle body to the vehicle body, the suspension arm is elongated and the support rigidity of the suspension arm and the strut is increased. [Structure] The upper end 6a of the strut 6 is attached to the wheel house 2 of the body 1. Chassis side frame 3
Further, a frame recess 14 is formed corresponding to the base end 7a of the suspension arm 7 and is recessed inward of the vehicle body. A reinforcing bracket 8 is provided on the outer side of the vehicle body of the wheel house 2, and a strut reinforcing portion 9 surrounds the mounting portion 12 of the upper end 6a of the strut attached to the wheel house 2.
And a recessed suspension arm reinforcing portion 10 that fits in the frame recess 14 and overlaps. The base end 7a of the suspension arm 7 is attached to the portion where the suspension arm reinforcement 10 and the frame recess 14 overlap.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a suspension attachment structure for attaching a suspension arm and a strut to a vehicle body.

[0002]

[Prior Art]

 Conventionally, this type of suspension mounting structure has a structure in which the base end of a suspension arm is pivotally attached to a shaft, and this shaft is fastened to the flat side surface of the chassis side frame on the outer side of the vehicle body with a tightening screw. Is known (disclosed in Japanese Utility Model Publication No. 1-6 3507). Here, the reason for forming the stepped portion is to make the suspension arm as long as possible to reduce changes in suspension characteristics due to bumps and rebounds of wheels, and to ensure vehicle running stability.

Further, as a body reinforcing structure, a side member is provided at a connecting portion between the floor van and the wheel house, and a fixing member is provided between the wheel house outside the vehicle body and the side member outside the vehicle body. Are known (disclosed in Japanese Utility Model Laid-Open No. 63-119481).

[0004]

[Problems to be solved by the device]

 However, the former suspension mounting structure has a problem that the suspension arm has a low support rigidity because the bracket is a small one provided at each base end of the suspension arm.

Further, in the latter body reinforcing structure, the rigidity is increased between the wheel house and the side member, but no measure is taken to increase the supporting rigidity around the strut mounting portion. There is.

The present invention has been made in view of the above circumstances, and an object of the present invention is to increase the support rigidity of the suspension arm and struts with respect to the vehicle body while ensuring a long suspension arm. It is something to do.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is to attach a suspension in which the upper end of a strut extending in the vertical direction of the vehicle body is attached to the wheel house of the body, and the base end of the suspension arm extending in the lateral direction of the vehicle body is attached to the side frame of the chassis. In the structure, a frame recess recessed inward of the vehicle body is formed on a surface of the side frame facing the base end of the suspension arm, and a reinforcing bracket is provided on an outer side of the vehicle body of the wheel house. This reinforcement bracket has a strut reinforcement portion surrounding the mounting portion where the upper end of the strut of the wheel house is attached, and a recessed suspension arm reinforcement portion that fits in the frame recess portion and overlaps with each other. The base end of is attached to a portion where the suspension arm reinforcing portion and the frame concave portion overlap.

[0008]

[Action]

 With the above structure, in the suspension mounting structure of the present invention, since the base end of the suspension arm is mounted at the portion where the suspension arm reinforcement and the frame recess overlap, this portion is recessed inward of the vehicle body. It is located farther from the tire as much as it is, and the length of the suspension arm becomes longer.

In addition, at the portion where the base end of the suspension arm is attached, the suspension arm reinforcing portion overlaps with the frame concave portion to make this portion thicker, so that the suspension arm reinforcing portion is resistant to external force transmitted from the suspension arm. Acts as a reinforcement. Further, since the strut reinforcement part surrounds the periphery of the attachment part where the upper end of the strut of the wheel house is attached, the periphery of this attachment part is made thicker, so that the reinforcement function against the external force transmitted from the strut. do. Moreover, since the suspension arm reinforcement and the strut reinforcement are each formed as a part of the reinforcement bracket, the rigidity of the reinforcement bracket as a whole enhances the reinforcement of both reinforcements against external force.

[0010]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a suspension mounting structure according to an embodiment of the present invention, in which 1 is a vehicle body and 2 is a wheel house formed by bulging inward of the body 1. On the inner surface side of the wheel house 2, there is provided a chassis side frame 3 extending in the vehicle front-rear direction. A strut 6 extending in the vertical direction of the vehicle body is connected between the wheel house 2 and the tire 5, and a suspension arm 7 extending in the left-right direction of the vehicle body is provided between the side frame 3 of the chassis and the tire 5. It is connected. An upper end 6a of the strut 6 is attached to a mounting portion 12 of the wheel house 2 with a tightening screw 19 via a mounting bracket 11, and a base end 7a of the suspension arm 7 connects the reinforcing bracket 8 and the wheel house 2. It is attached to the side frame 3 via the above.

The side frame 3 has a box-shaped cross section, and upper and lower portions of a surface facing the suspension arm base end 7a extend to form extension pieces 13 and 13, respectively. ing. Further, the side frame 3 is provided with a frame recess 14 that is recessed inward of the vehicle body at a position corresponding to the suspension arm base end 7a on the surface facing the suspension arm base end 7a. Similarly, the wheel house 2 is also formed with a wheel house recess 20 that is recessed inward of the vehicle body at a position corresponding to the suspension arm base end 7a.

The reinforcing bracket 8 is provided on the outer side of the vehicle body along the wheel house 2, and surrounds the mounting portion 12 to which the strut upper end 6a is mounted. It has a frame-shaped concave portion 14 and a suspension arm reinforcing portion 10 having a concave shape which is accommodated in the concave portion 20 of the wheel house and overlaps. The recessed suspension arm reinforcing portion 10 and the frame recessed portion 14 are both formed by drawing. Therefore, the overlapped portion between them is not affected by an external force applied in the side frame longitudinal direction, that is, the vehicle front-rear direction. It functions to increase the collision rigidity of the side frame 3. Further, even if a strong impact such as the side frame 3 is crushed from the front of the vehicle is received, the front portion of the side frame 3 absorbs the impact because the reinforcing bracket 8 serves as a reinforcing portion of the side frame 3. As a result, the vehicle body can be protected by preventing the vehicle body from being crushed behind the reinforcing bracket 8.

The base end 7a of the suspension arm 7 is housed in a recess formed by a portion where the suspension arm reinforcement 10 and the frame recess 14 overlap with each other, and the base end 7a conforms to the shape of the suspension arm base end 7a. It is housed in a retainer fitting 15 having a curved portion 16 for receiving. In this state, the holding metal fitting 15 is attached to the upper and lower extension pieces 13, 13 of the side frame 3 with the reduction screw 17 via the reinforcing bracket 8 and the wheel house 2. The holding fitting 15 has an opening 18 through which the suspension arm 7 is swingably inserted.

Next, the function and effect of this embodiment will be described. Since the base end 7a of the suspension arm 7 is attached to a portion where the suspension arm reinforcement portion 10 and the frame recess portion 14 overlap with each other, it is located away from the tire 5 by the amount that this portion is recessed inward of the vehicle body. The suspension arm 7 becomes longer. Therefore, it is possible to reduce the camber change and contribute to the stable running of the vehicle.

In the portion where the base end 7a of the suspension arm 7 is attached, the suspension arm reinforcing portion 10 overlaps with the frame recess 14 formed in the side frame 3 as the vehicle strength member, and this portion is formed. Since it is thick, it acts as a reinforcement against the external force transmitted from the suspension arm 7, and the support rigidity of the suspension arm 7 can be increased. Further, since the strut reinforcing portion 9 surrounds the periphery of the mounting portion 12 to which the upper end 6a of the strut of the wheel house 2 is mounted, the periphery of the mounting portion 12 is made thick, so that it is transmitted from the strut 6. It acts to reinforce external force, and the support rigidity of the strut 6 can be increased. Moreover, since the suspension arm reinforcing portion 10 and the strut reinforcing portion 9 are each formed as a part of the reinforcing bracket 8, the rigidity of the reinforcing bracket 8 as a whole causes the reinforcing portions 9 and 10 to be reinforced against external force. Is increasing. Therefore, the support rigidity of the suspension arm 7 and the strut 6 can be sufficiently increased. Further, since the suspension arm reinforcing portion 10 overlaps with the frame concave portion 14 and is securely locked to this portion, the supporting rigidity of the reinforcing bracket 8 itself is increased, and as a result, the supporting rigidity of the suspension arm 7 and the strut 6 is increased. Can be increased.

Although the frame recesses of the side frames are formed at the positions corresponding to the base ends of the suspension arms in the above-described embodiment, the invention is not limited to this. It may be formed in a groove shape along the longitudinal direction.

Further, the shape of the suspension arm reinforcing portion is not limited to the above embodiment, but may be formed in a groove shape along the longitudinal direction of the side frame, for example.

[0019]

[Effect of the device]

 As described above, according to the suspension mounting structure of the present invention, the base end of the suspension arm is a portion where the suspension arm reinforcement portion and the frame recess portion overlap, and this portion is recessed inward of the vehicle body. Since it is located away from the tires, the suspension arm can be lengthened to reduce camber changes and contribute to stable running of the vehicle. Further, since the suspension arm reinforcing portion reinforces the external force transmitted from the suspension arm, it is possible to increase the support rigidity of the suspension arm. Further, the strut reinforcing portion reinforces the external force transmitted from the strut, so that the supporting rigidity of the strut can be increased. Further, the suspension arm reinforcement portion overlaps with the frame recess portion and is securely locked to this portion, so that the support rigidity of the reinforcement bracket itself is increased, and eventually the support rigidity of the suspension arm and the strut can be increased. .. Moreover, since the suspension arm reinforcing portion and the strut reinforcing portion are each formed as a part of the reinforcing bracket, the rigidity of the entire reinforcing bracket can sufficiently increase the supporting rigidity of the suspension arm and the strut. Further, in the reinforcing bracket, since the reinforcing portion of the suspension arm is formed in a concave shape, the rigidity of the reinforcing bracket itself is increased, which can contribute to increasing the strength of the vehicle body.

In addition,

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a suspension mounting structure showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a relationship between a side frame and a reinforcing bracket.

FIG. 3 is a front view showing a mounting state of a suspension arm.

[Explanation of symbols]

 1 Body 2 Wheelhouse 3 Side Frame 4 Suspension 6 Strut 6a Strut Upper End 7 Suspension Arm 7a Suspension Arm Base End 8 Reinforcement Bracket 9 Strut Reinforcement 10 Suspension Arm Reinforcement 12 Attachment 14 Frame Recess

Claims (1)

[Claims for utility model registration] [Claim 1] The upper ends of struts extending in the vertical direction of the vehicle body are attached to the wheel house of the body, and the base ends of suspension arms extending in the horizontal direction of the vehicle body are attached to the side frame of the chassis. In the suspension mounting structure, the side frame has a frame recess that is recessed inward of the vehicle body on the surface facing the base end of the suspension arm, and the side of the wheel house is reinforced outside the vehicle body. A bracket is provided, and this reinforcing bracket has a strut reinforcement portion surrounding the periphery of the mounting portion to which the upper end of the strut of the wheel house is attached, and a recessed suspension arm reinforcement portion that fits in the frame recess portion and overlaps. , The base end of the suspension arm is reinforced with the suspension arm Mounting structure of a suspension, characterized in that the frame recess is attached to a portion of polymerizing with.