Boot for constant velocity universal joint

A constant velocity universal joint and protective cover technology, applied in the direction of elastic coupling, engine seal, engine components, etc., can solve the problems such as the offset of the protective cover belt and the large deformation of the wrinkle part, so as to prevent the axial direction deviation. The effect of shifting and preventing ear interference

Inactive Publication Date: 2009-02-11
NTN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the operating angle of the joint is greater than, for example, 45°, the amount of deformation of the corrugation portion becomes larger, so this structure is still insufficient to completely prevent interference between the ears of the boot band and the corrugation portion, or deflection of the boot band. shift

Method used

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  • Boot for constant velocity universal joint
  • Boot for constant velocity universal joint
  • Boot for constant velocity universal joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Below, according to Figure 1 to Figure 8 Embodiments of the present invention will be described.

[0032] figure 1 A cross-section of a large-diameter portion of the boot 1 for a constant velocity universal joint according to the first embodiment of the present invention is shown. The overall shape of the boot 1 is almost the same as that of the conventional one, consisting of a large-diameter portion 1a fixed on the outer peripheral surface of the outer joint member (outer ring 2) of the constant velocity universal joint, and a small-diameter portion 1a fixed on the outer peripheral surface of the shaft of the constant velocity universal joint. A protective cover 1 is formed by a corrugated portion (not shown) and a corrugated portion (not shown) connecting the large diameter portion and the small diameter portion. The wrinkle part consists of about 2 to 7 mountains and valleys between them. The protective cover 1 is molded from a rubber material such as neoprene ...

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PUM

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Abstract

A boot for a constant velocity universal joint, where no portion of the boot interferes with an ear section of a boot band even if the joint is at a high operation angle. The boot is used for a constant velocity universal joint in which a torque transmission member is received between an outer joint member and an inner joint member and in which a shaft connected to the inner joint member projects outside the joint, and the boot is placed between the outer periphery of the outer joint member and the outer periphery of an intermediate section of the shaft. The boot has a tubular large diameter section (1a) fixed to the outer peripheral surface of the outer joint member (2) by the boot band (3), a tubular small diameter section fixed to the outer peripheral surface of the shaft, a bellows section (1d) for connecting the large diameter section and the small diameter section, and a shoulder section (1c) located between the large diameter section and the bellows section and covering the outer peripheral surface on the opening end side of the outer joint member. The shoulder section (1c) is extended by a predetermined length from the boot band (3) to the opening end side of the outer joint member.

Description

technical field [0001] The present invention relates to a protective cover for covering constant velocity universal joints used for driving shafts of automobiles, etc. The shoulder and the corrugated part of the large end of the cover are selected as the boot of the constant velocity universal joint which does not interfere with the boot band even at high operating angles of the joint. Background technique [0002] The constant velocity universal joint is equipped with a corrugated cover for the purpose of preventing the leakage of the grease sealed inside the joint and preventing foreign matter from entering the joint. Both ends of the boot are respectively fitted to the outer ring and the shaft of the constant velocity universal joint, which are outer joint members, and both ends of the boot are pressed and fixed by boot bands. The constant velocity universal joint boot is generally roughly classified into a rubber boot made of a rubber material such as neoprene (CR) and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/84F16J3/04F16J15/52
CPCF16J3/042F16D3/845F16J3/043
Inventor 柴田贵章
Owner NTN CORP
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