公开(公告)号：US10353423B2

公开(公告)日：2019-07-16

申请号：US15354079

申请日：2016-11-17

申请人： Sakamoto Electric Works Co., Ltd.

发明人： Masaru Miyachi

IPC分类号： G05G1/04 ,  F16H59/02 ,  G05G25/04 ,  G05G9/047 ,  H01H25/04

摘要： A joy stick includes a main portion has a switch. An operation pole capable of rotating and inclining in the X-axis and the Y-axis directions. A sealing table constitutes a part of sphere on an upper surface of said main portion. The joy stick has an annular sealing plate on the sealing table, which curves so as to constitute a part of the sphere. A lower surface of the sealing plate is in contact with the sealing table. A circular sealing lid is mounted on a lower surface of the operation pole, and the sealing lid is in contact with an upper surface of the sealing plate so as to cover the sealing plate. Thereby, a clearance between the operation pole and the sealing table is closed by the seal lid and the sealing plate. A wide rotation range of the operation pole is achieved by the movable sealing plate.