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Axle sleeve structure

A technology of bushings and rubber shafts, which is applied to cantilever mounted on pivots, springs made of plastic materials, suspensions, etc., can solve the problems of increasing the weight of rubber bushings and increasing the size of rubber bushings, and achieve Lightweight and miniaturized effect

Inactive Publication Date: 2007-09-12
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, corresponding to the axial length of the perforation on the supported object, the axial length of the rubber bushing has to be unnecessarily long, which not only increases the size of the rubber bushing, but also increases the weight of the rubber bushing

Method used

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  • Axle sleeve structure
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Examples

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no. 1 Embodiment

[0023] Fig. 1 is a front view showing a main part of a vehicle suspension structure according to a first embodiment of the present invention.

[0024] The suspension structure shown in FIG. 1 has a suspension arm (lower arm) 10 which can rockably support the wheel on the vehicle body. The suspension arm 10 is connected to the wheel through a ball joint, a knuckle arm, a bearing, a hub, and the like.

[0025] The suspension arm bracket 20 is fastened to the suspension arm 10 via a rubber bush 30 . The suspension arm bracket 20 is engaged with one end of a shock absorber 70 by a bolt or the like. The other end of the shock absorber 70 is fixed on the vehicle body.

[0026] In the above suspension structure, the vertical vibration of the wheel due to the force applied to the wheel from the road is absorbed by the shock absorber 70 mainly through the suspension arm 10 and the suspension arm bracket 20 .

[0027] As an embodiment of the present invention, the fastening structure...

no. 2 Embodiment

[0047] Fig. 5 is a cross-sectional view showing a suspension structure of a second embodiment of the present invention.

[0048] The difference between this embodiment and the first embodiment is that in this embodiment, the suspension arm 10 and the suspension arm bracket 20 are connected together by bolts 50 . Except for this point, other structures may be the same as those of the first embodiment.

[0049] In FIG. 5 , instead of the pin 22 , the shaft portion of the bolt 50 is inserted into the inner cylinder 320 of the rubber bush 30 . The inner cylinder 320 may also have a small diameter portion 324 , and more importantly, the inner diameter of the inner cylinder 320 is substantially consistent along the entire circumferential direction in the axial direction. As shown in FIG. 5 , the bolt 50 may be threaded with a nut 52 or the like, or alternatively may be threaded in the hole 21 of the suspension arm bracket 20 .

[0050] In this embodiment, as shown in FIG. 5 , the ...

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PUM

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Abstract

The invention provides a bush structure with a slipping-out prevention function capable of being light in weight. The bush structure has a bush 30, and the bush 30 is a double-cylinder structure, comprising an inner cylinder 320 as a cylindrical member and an outer cylinder 310 with a basic diameter greater than that of the inner cylinder 320, and has an elastic body 32. The elastic body 32 is disposed between the inner cylinder 320 and the outer cylinder 310, and combines both cylinders. A pin-shaped member 22 is inserted into the inner cylinder 320 of the bush 30, and a nut 40 is fixed on an end of the member. A diameter smaller than the basic diameter R1 of the outer cylinder 310 and also smaller than the diameter of the nut 40 is provided on at least a part 314 of an end 312 of the outer cylinder 310 at a nut side.

Description

technical field [0001] The present invention relates to a bush structure using a bush having an elastic member disposed between an inner cylinder and an outer cylinder and combining the inner cylinder and the outer cylinder. Background technique [0002] Rubber bushings are widely known in the prior art. The rubber bushing has a double-tube structure consisting of an inner tube and an outer tube with a larger diameter than the inner tube. There is an elastic element between the inner tube and the outer tube through vulcanization to combine the inner tube and the outer tube. As shown in the Japanese patent publication "JP 2002-81479", in this rubber bushing, there are parts with a diameter larger than the outer cylinder at both ends of the inner cylinder in the axial direction, so that even if the rubber elastic element is damaged and broken, it can prevent The inner cylinder falls off the outer cylinder. [0003] In a fastening structure using a rubber bushing, the rubber ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/08F16F1/38B60G7/02
Inventor 那须弘速水博史宗田浩幸
Owner TOYOTA JIDOSHA KK
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