公开(公告)号：US11898615B2

公开(公告)日：2024-02-13

申请号：US17054943

申请日：2019-05-14

申请人： HITACHI ASTEMO, LTD.

发明人： Toshihiro Inuzuka ,  Urban Anta Carlos ,  Atsushi Maeda ,  Koji Minamino ,  Aakash Patwa

IPC分类号： F16F13/00 ,  B60G15/06 ,  B60G17/08

CPC分类号： F16F13/007 ,  B60G15/061 ,  B60G17/08 ,  B60G2202/30 ,  B60G2204/62 ,  B60G2206/41 ,  B60G2500/104 ,  B60G2600/21 ,  B60G2800/162 ,  F16F2222/12 ,  F16F2224/02 ,  F16F2228/066 ,  F16F2230/36 ,  F16F2230/42 ,  F16F2232/08 ,  F16F2234/02

摘要： A cylinder apparatus is provided with a stopper mechanism that operates when a piston rod extends and moves toward an upper end portion in an inner cylinder. This stopper mechanism includes a second cylinder provided movably relative to the piston rod and including a bottom portion on an upper end side in the inner cylinder and a cylinder portion extending from the bottom portion toward a lower end side, and a second piston provided so as to be able to move along with a movement of the piston rod to be fitted to the second cylinder. While being configured in this manner, the cylinder apparatus is configured in such a manner that a spring member 21 is provided between the second cylinder and a rod guide.