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Boot seal for ball joints

A dust jacket and ball pin technology, which is applied to the cantilever mounted on the pivot, transportation and packaging, mechanical equipment, etc., can solve the problems of insufficient defense against pollution, the sealing interface can not meet the requirements, etc.

Inactive Publication Date: 2003-08-06
DANA HEAVY VEHICLE SYSTEMS GROUP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing tie rod assembly structures are insufficient to protect against contaminants at the interface of the rotating boot and arm boss and at the interface of the boot and ball pin
[0007] The surface of the steering knuckle is forged or rough machined, and in order to seal against contaminants entering the tie rod end, this rough machined surface product provides an unsatisfactory surface for the sealing interface

Method used

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  • Boot seal for ball joints
  • Boot seal for ball joints
  • Boot seal for ball joints

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] with reference to the attached figure 1 , shows a partial perspective view of a typical automotive vehicle front steering assembly 10 . Major components and accessories such as steering bridge 12 , steering knuckle 14 , and tie rod (or gauge rod) crosspiece 16 are contained within front steering assembly 10 . Steering bridge 12 is received by and connected to steering knuckle 14 . These components are also shown in the figure 2 middle.

[0022] The knuckle assembly 14 includes an input / output member 18 , more commonly referred to as a tie rod arm (or trapezoidal steering arm). The tie rod arm 18 has a first end 20 connected to the knuckle assembly 14 and a second end 22 attached to a ball pin 24 of a ball joint assembly 26 and mounted thereto with a nut 28 . Of course, the tie rod arm 18 can also be integrated with the steering knuckle assembly 14 . In particular, the second end 22 (boss end) of the tie rod arm 18 is attached to the shank 25 of the ball pin 24 . ...

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PUM

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Abstract

The ball joint has a socket body and a ball stud pivotally mounted to the socket body. The ball stud has a shank portion that extends therefrom and is aligned along a shank axis. An elastic boot seal (42) that extends between the ball stud and socket body is also included. The seal element (50) is interposed between the boot seal, the shank portion and the input / output member (18) to enhance the boot seal interface and thereby guard the boot seal to shank portion interface against contamination during movement and articulation of the input / output member relative to the ball joint.

Description

technical field [0001] The present invention relates generally to ball joints for motor vehicles, and more particularly to composite boots of elastically deformable material in which a metal seal is provided near the boot-shaft interface components to prevent contamination of the sealed area. Background technique [0002] Ball joints are commonly used as pivot joints that allow two members to move angularly relative to each other. After a certain period of time, the ball joint can experience wear as a result of the contact of one or both components. This is especially true if the ball joint is surrounded by a rubber boot that is constantly rubbed against the mating member during movement, thereby causing the aforementioned wear and openings in the boot. When such wear occurs in boots, contaminants of the type water, dust and road salt can enter the openings causing wear of the joints. In addition, over prolonged use, the interface between the boot and the ball joint compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C11/06
CPCB60G7/005B60G2204/43B60G2200/44B60G2206/31B60G2206/8207B60G2204/416F16J3/042F16C11/0671B62D7/166B60G2206/11B60G2200/30B60G2206/50F16C2326/24F16C2326/05Y10T403/32729
Inventor M·L·泽波尔斯基M·A·达维斯D·G·摩西斯
Owner DANA HEAVY VEHICLE SYSTEMS GROUP LLC