公开(公告)号：US09869378B2

公开(公告)日：2018-01-16

申请号：US14772681

申请日：2014-02-06

Applicant: NHK SPRING CO., LTD.

Inventor： Takao Kobayashi ,  Takahiro Ito ,  Yoshiyuki Takahashi ,  Kazuhito Hiraoka

IPC: F16H7/08 ,  F16H7/22 ,  F01L1/18

CPC classification number: F16H7/08 ,  F01L1/18 ,  F16H2007/0804 ,  F16H2007/081 ,  F16H2007/0893

Abstract: A load-applying device is provided that includes a spiral spring that is formed from a thin strip that is wound multiple times in a spiral shape; a movable body; and a fixing member. The spiral spring is disposed between the movable body and the fixing member, in a manner capable of performing a diameter reduction operation and a diameter expansion operation, and an outer-circumference part of the spiral spring contacting the movable body and the fixing member directly, or indirectly.