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Suspension device for vehicle

A suspension device and vehicle technology, applied in the direction of suspension, elastic suspension, vehicle spring, etc., can solve the problems of increased weight, complex structure, large-scale suspension device, etc., and achieve a simple structure and restrain the load under the spring. Increases and improves ride comfort

Inactive Publication Date: 2014-01-22
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of the devices described in these documents, like the device disclosed in Japanese Patent Application Laid-Open No. 10-264636, the structure for changing the camber angle is complicated, resulting in an increase in the size and weight of the suspension device. The problem

Method used

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  • Suspension device for vehicle
  • Suspension device for vehicle
  • Suspension device for vehicle

Examples

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Embodiment Construction

[0042] [1 example of embodiment]

[0043] Figure 1 ~ Figure 3 It is an example which shows embodiment of this invention. The feature of this example is that, for a double-wishbone type vehicle suspension device, by integrating a structure for making the overall length of the upper arm 4b variable in the upper arm 4b itself, it can be appropriately changed according to the driving conditions of the vehicle. Camber γ this point. For the lower cantilever 5 and other parts, and Figure 4 The first example of the conventional structure shown is the same. Therefore, the following description will focus on the structure of the upper boom 4b which is a characteristic part of this example.

[0044] like figure 1 As shown, in the case of the vehicle suspension device of this example, the steering knuckle 3 that rotatably supports the wheel 1 via the bearing unit 2 is also relative to the vehicle body 11 by the upper boom 4b and the lower boom 5 (see figure 2 ) is swingably suppo...

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Abstract

An upper arm (4b), which constitutes a suspension device for a vehicle, is configured from: a casing (12) which is supported in a manner so as to be able to oscillate relative to a vehicle body; a pair of screw shafts (20) which are supported by the casing (12) in a manner so as to be able to move only in the axial direction; a pair of screw nuts (21) which engage with the perimeters of the screw shafts (20), and which are supported by the casing (12) in a manner so as to be only able to rotate; a worm reduction gear (14) which rotates the screw nuts (21); and a pair of link arms (29a), the base-end sections of which are connected to the tip sections of the screw shafts (20), the tip end sections of which are connected to a knuckle (3), in a manner so as to be able to rotate around the vertical axis of the vehicle. The screw shafts (20) are moved in opposite directions from one another in the axial direction, the angle by which the pair of link arms (29a) are open is altered, and the entire length of the upper arm (4b) relative to the width-wise direction of the vehicle body is altered.

Description

technical field [0001] The present invention relates to a double-wishbone type vehicle suspension device capable of appropriately changing a camber angle in accordance with a running state of a vehicle. Background technique [0002] Various structures are conventionally known as suspension devices for vehicles such as passenger cars. Among them, in recent years, a double-wishbone type suspension device with a high degree of freedom in design and excellent road surface followability has been adopted in many types of vehicles, mainly luxury cars and sports cars. Figure 4 It refers to the past of the double-wishbone suspension device described in "Automobile Manufacturers & Structure Illustrated Book" by Takeshi Hosokawa (published by Gulanpri Co., Ltd., published on January 10, 2003, page 207). The first instance of construction. [0003] A knuckle 3 , which rotatably supports a wheel 1 via a bearing unit 2 , is swingably supported by an upper arm 4 and a lower arm 5 constit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G7/00B60G17/015
CPCB60G7/006B60G17/0162B60G2200/46B60G2202/40B60G2202/442B60G2204/143
Inventor 松田靖之郡司大辅
Owner NSK LTD
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