CONSTANT VELOCITY JOINT BOOT,申请号JP20000133089-传众专利搜索

CONSTANT VELOCITY JOINT BOOT

申请公布号：JP2001317561(A)

申请号：JP20000133089

申请日期：2000.05.02

申请公布日期：2001.11.16

申请人：

KYORAKU CO LTD

发明人：TAKEDA TSUTOMU;WAKI KAZUO

分类号：F16D3/84;(IPC1-7):F16D3/84

主分类号：F16D3/84

摘要：PROBLEM TO BE SOLVED: To provide a constant velocity joint boot made of thermoplastic elastomer, having a good assembling property and a good sealing performance to a constant velocity joint. SOLUTION: This constant velocity joint is made of thermoplastic elastomer integrally molded by blow molding, and comprises a bellows portion 1 alternately provided with crest portions 1a and bottom portions 1b, a large diameter cylindrical portion 2 continuously provided at a first end of the bellows portion 1, and a small diameter cylindrical portion 3 continuously provided at a second end of the bellows portion 1. An annular groove portion 6 tapering off from an outer peripheral surface toward an inner peripheral surface and having a generally trapezoid cross-section is provided on a fixing recess portion 5 formed on the outer peripheral surface of the large diameter cylindrical portion 2, and an annular projecting portion 4 projecting out in a generally crest shape is provided at a part corresponding to the annular groove portion 6 on the inner peripheral surface. In the annular groove portion 6, a ratio Wa/D of the opening width Wa to the depth D thereof is within a range of 0.8 to 1.3, and a ratio D/T of the depth D to the thickness T of the fixing recess portion 5 is within a range of 1.1 to 1.4.