发明授权
- 专利标题: Chain Tensioner
- 专利标题(中): 链式张紧器
-
申请号: US11797258申请日: 2007-05-02
-
公开(公告)号: US07571632B2公开(公告)日: 2009-08-11
- 发明人: Ken Yamamoto , Eiji Maeno
- 申请人: Ken Yamamoto , Eiji Maeno
- 申请人地址: JP Osaka
- 专利权人: NTN Corporation
- 当前专利权人: NTN Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Arent Fox LLP
- 主分类号: B21D17/00
- IPC分类号: B21D17/00
摘要:
This invention provides a chain tensioner that is compact, excellent in operation, easy to maintain and handle and low in manufacturing cost. This chain tensioner has a tubular housing 1 having a bottom, a plunger 3 installed in the inner periphery 1a of the housing so as to smoothly slide inside the housing, a return spring 5 providing the plunger 3 with a force pushing outward, a plurality of latching grooves 33a-33d formed on the outer periphery of the plunger 3, a resister ring 7 capable of locking in the latching grooves, and a check valve 6 that is mounted on the bottom of the housing inner periphery 1a, provides the housing inner periphery 1a with operating oil and prevents its reverse flow. The range of backward movement of the plunger 3 is limited by mating the resister ring 7 locked in the latching grooves 33a-33d with a first stopper 21 formed on the housing inner periphery 1a.
公开/授权文献
- US20070213152A1 Chain Tensioner 公开/授权日:2007-09-13
信息查询