发明名称 Cylinder apparatus with a lockable piston rod
摘要 <p>A hydraulic shock absorber (1) enables its piston rod (3) to be locked near its minimum length position and allows the locked condition to be visually confirmed easily. A cap member (7) is secured to a distal end portion of a piston rod (3) extending from a cylinder part, and a dust cover (8) is secured to the cap member. A lock member (12) is secured to an end of the cylinder part (2) from which the piston rod extends to the outside. The lock member is cut and bent upward to form engaging portions (13). The cap member is cut and bent downward to form engaging pieces (14) and windows (15). With the piston rod contracted to near its minimum length position, the cap member is rotated to engage the engaging portions and the engaging pieces with each other, thereby locking the piston rod. The engaged condition of the engaging portions and the engaging pieces can be visually confirmed through the windows.</p>
申请公布号 EP2020529(A2) 申请公布日期 2009.02.04
申请号 EP20080012734 申请日期 2008.07.15
申请人 HITACHI LTD. 发明人 YAMAMOTO, SATSUKI;MAEGAWA, YUSUKE;YOSHIDA, TETSUO
分类号 F16F9/56 主分类号 F16F9/56
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