Boot

一种防尘罩、波纹管的技术，应用在防尘罩领域，能够解决波纹管部分起伏变形、难以防止波纹管起伏变形等问题，达到减少加工工时、省去热处理、低成本的效果

Active Publication Date: 2007-09-12
TOYODA GOSEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, it is difficult to prevent the portion of the bellows disposed away from the ball joint from undergoing undulating deformation
Therefore, when the ball joint is arranged away from the center portion of the bellows, the portion of the bellows arranged away from the ball joint may experience undulating deformation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0055] Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples.

no. 1 example

[0057] FIG. 1 illustrates an axial sectional view of a steering boot according to a first embodiment of the present invention. As shown in the figure, the dust cover 1 includes a large-diameter fixing portion 10 , a first bellows 11 , a second bellows 12 , a small-diameter side bellows 13 , and a small-diameter fixing portion 14 . The first bellows 11 is arranged in a continuous manner from the large-diameter fixing portion 10 . The second bellows 12 is arranged in a continuous manner from the first bellows 11 . The small-diameter side bellows 13 is arranged in a continuous manner from the second bellows 12 . The small-diameter fixing portion 14 is arranged in a continuous manner from the diameter-side bellows 13 . The dust cover 1 is made of resin, and is integrally formed by blow molding. It should be noted that the dust cover 1 is not heat-treated.

[0058] The large-diameter fixing portion 10 and the small-diameter fixing portion 14 are each formed in a ring shape. Ar...

no. 2 example

[0069] The dust cover 1 according to the second embodiment of the present invention is configured in the same manner as the dust cover 1 according to the first embodiment except that the configuration of the small-diameter side bellows 13 is different.

[0070] A dust cover 1 according to a second embodiment of the present invention includes a small-diameter side bellows 13 shown in FIG. 4 . As shown in the figure, the small-diameter side bellows 13 includes a front film 15 and a rear film 16 in the same manner as the dust cover 1 according to the first embodiment. Also, a front membrane 15 is a portion starting from the top of the peak "M" and ending at the bottom of the valley "m", for example, forming an angle θ with respect to the radial direction of the small-diameter side bellows 13 1 and, a rear membrane 16 is a portion starting from the bottom of the valley "l" and ending at the top of the peak "M", forming an angle θ with respect to the radial direction of the small d...

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PUM

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Abstract

A boot includes a major-diameter fastener, a first bellows, a second bellows, a minor-diameter-side bellows, and a minor-diameter fastener. The major-diameter fastener is to be fastened to a mating major-diameter member. The first bellows is disposed continuously from the major-diameter fastener. The second bellows is disposed continuously from the first bellows. The minor-diameter-side bellows is disposed continuously from the second bellows. The minor-diameter fastener is disposed continuously from the minor-diameter-side bellows, and is to be fastened to a mating minor-diameter member. The first bellows exhibits an averaged first axial rigidity. The second bellows exhibits an averaged second axial rigidity. The minor-diameter-side bellows exhibits an averaged third axial rigidity. The averaged first axial rigidity and the averaged third axial rigidity are lower than the averaged second axial rigidity.

Description

technical field [0001] The invention relates to a dust cover installed on a rack-and-pinion steering device. Background technique [0002] The steering dust cover covers the spherical universal joint, and the spherical universal joint is arranged between the steering gear box and the steering tie rod. Specifically, one of the opposite ends of the steering boot is fixed to the steering gearbox end, and the other of the opposite ends of the steering boot is fixed to the steering tie rod end. In addition, a steering boot is arranged close to the engine. Therefore, the ambient temperature around the steering boot is a relatively high temperature. Therefore, the air sealed in the steering boot expands, deforming the steering boot. [0003] Figure 9 illustrates a side view of a conventional steering boot that has been deformed. As shown, when the air inside the conventional steering boot 100 expands, the conventional steering boot 100 expands and then deforms. As a result, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/52F16J3/04
CPCF16J3/041
Inventor 稻垣秀彦太田胜久
Owner TOYODA GOSEI CO LTD
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