发明名称 CAPTIVE FASTENER APPARATUS FOR CHAIN GUIDE OR TENSIONER ARM
摘要 A fixed or adjustable chain guide includes a captured shoulder bolt fastener. An adjustable chain guide such as a chain tensioner arm assembly includes a tensioner arm with a pivot bore defined about a pivot axis. The pivot bore includes an inner end opening through a rear face of the tensioner arm and an outer end opening through a front face of the tensioner arm. The tensioner arm further includes at least one resilient fastener retaining tab located adjacent the pivot bore. The shoulder bolt extends through the pivot bore and is engaged by the at least one resilient fastener retaining tab, and the at least one fastener retaining tab inhibits separation of the fastener from the tensioner arm. The fastener preferably includes an annular groove or other recess to be engaged by the one or more fastener retaining tabs in order to permit the tensioner arm to rotate relative to the fastener. New shoulder bolt fasteners are also defined, each including a shoulder region having at least one retaining feature such as an annular groove adapted to be engaged by a projecting portion of an associated component for axially capturing the fastener to the associated component while permitting rotation of the associated component relative to the fastener.
申请公布号 US2015023756(A1) 申请公布日期 2015.01.22
申请号 US201414509554 申请日期 2014.10.08
申请人 Young James D. 发明人 Young James D.
分类号 F16B39/32;F16H7/20;F16H7/10 主分类号 F16B39/32
代理机构 代理人
主权项 1. A multi-piece shoulder bolt fastener comprising: a bolt comprising a shank including threads formed on at least a distal portion of the shank; a sleeve body that surrounds the shank, said sleeve body including a cylindrical outer surface and a shoulder region, said cylindrical outer surface including at least one recess defined therein that is adapted to be engaged by an associated component to capture said shoulder bolt fastener to the associated component; said bolt and sleeve being axially movable relative to each other, wherein said sleeve is captured on said bolt such that said bolt is not separable from said sleeve.
地址 Chesaning MI US