Tachikawa Corporation

Tsubasa Asaka

Masaya Yamaguchi

Kazuto Yamagishi

Takenobu Ebato

A shielding device for opening and closing a shielding member by rotation of a winding shaft, the shielding device including a speed controller configured to control an automatic movement speed of the shielding member, wherein the speed controller includes: a housing containing a viscous fluid; and a moving member contained in the housing and configured to move by rotation of the winding shaft, and the speed controller is configured so that resistance the moving member receives from the viscous fluid varies with movement of the moving member, is provided.

Growing community of inventors

Tokyo, Japan

Tsubasa Asaka