Suspension device

A technology of suspension device and installation part, which is applied in the direction of suspension, elastic suspension, transportation and packaging, etc.

Active Publication Date: 2014-04-30
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above case, when the coil spring breaks, there is a problem that the damaged coil spring interferes with the tire.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0015] figure 1 It is a cross-sectional view of the suspension device 1 according to the first embodiment of the present invention. This suspension device 1 has: a coil spring 7 which elastically receives the up and down movement of the wheel 3 relative to the vehicle body 5; . The tire 13 is located on the outer side in the vehicle width direction near the lower end of the coil spring 7 ( figure 1 on the right side of the ). Here, the wheel 3 is composed of a hub 11 on the inner peripheral side and a tire 13 mounted on the outer peripheral side of the hub 11 .

[0016] The strut damper 9 has a cylindrical case 15 arranged on the lower side, and a piston rod 17 protruding upward from the upper end of the cylindrical case 15 . The piston rod 17 is configured to be movable forward / backward with respect to the cylindrical housing 15 . In addition, the cylindrical case 15 and the piston rod 17 extend obliquely with respect to the vertical direction. Specifically, the upper p...

no. 2 Embodiment approach

[0041] The second embodiment of the present invention corresponds to making the figure 2 In the first embodiment shown, the piece portion 29a and the expansion portion 29e of the lower spring piece 29 are separate members. That is, in the second embodiment, as Figure 4 As shown, the spring movement limiting member 35 has: a mounting portion 35a mounted on the outer peripheral portion near the sealing material 31 of the cylindrical case 15 of the strut damper 9; a stepped portion 35b located at the lower portion of the mounting portion 35a, Make the bumper rubber 33 ( figure 1 ) abuts against the lower end; and the expansion part 35c, which is located at the lower part of the stepped part 35b and becomes a movement restricting part.

[0042] The inflated portion 35c constitutes a tapered portion in the same manner as the inflated portion 29c of the first embodiment, and the tapered portion is formed in a tapered shape whose inner diameter (outer diameter) gradually increase...

no. 3 Embodiment approach

[0045] The third embodiment of the present invention corresponds to the figure 2 In the first embodiment shown in , the lower spring piece 29 and the sealing material 31 are integrated. That is, the third embodiment such as Figure 5 As shown, the lower spring piece 39 integrally has the structure of the piece part 39a, the expansion part 39b, and the sealing part 39c.

[0046] The sealing portion 39c is in harmony with figure 2 The sealing material 31 is formed longer than the form extending downward, and its lower end is continuous with the stepped portion 39d, and the stepped portion 39d is in contact with the bumper rubber 33 ( figure 1 ) butt against the lower end. Therefore, here, the portion of the seal portion 39 c that faces the outer peripheral surface of the cylindrical case 15 serves as an attachment portion 39 e where the lower spring piece 39 is attached to the strut damper 9 .

[0047] As described above, according to the third embodiment, the strut damper...

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PUM

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Abstract

A suspension device is provided with: a coiled spring (7) which allows a vehicle body (5) to elastically receive the vertical movement of a wheel (3) and which is disposed at a position facing a side (13a) of the tire (13) of the wheel (3); and a movement restriction section (29e) which is provided within the inner space (8) of the coiled spring (7) at a position facing the side (13a) of the tire (13) and which restricts the movement of the coiled spring (7) toward the tire (13).

Description

technical field [0001] The present invention relates to a suspension device in which a coil spring is arranged on the side of a tire. Background technique [0002] In the vehicle suspension device, for example, when the height of the hood of the vehicle body is lowered to lower the upper end position of the strut damper, the coil spring may be arranged on the side of the tire. In the above case, when the coil spring breaks, there is a problem that the damaged coil spring interferes with the tire. [0003] For example, in the suspension device described in the following patent document 1, as a countermeasure when the coil spring is broken, the flange provided on the dust cover covering the upper part of the cylindrical case of the strut damper is extended to the upper part of the coil spring. between the windings. In this case, by protruding the flange between the coils at the upper part of the coil spring, the upper spring piece after the coil spring is broken is prevented...

Claims

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Application Information

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IPC IPC(8): F16F9/32B60G11/52B60G15/06F16F1/12
CPCB60G2206/41B60G15/063B60G11/14F16F1/12B60G2202/12B60G2206/426B60G2204/1242B60G2202/312B60G9/00
Inventor 铃木厚史
Owner NISSAN MOTOR CO LTD
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