Thk Co., Ltd.

Miki Tobita

Takashi Naito

Akira Sato

Kaoru Hoshide

Masaki Nagatsuka

Koji Ozawa

Aiko Tagawa

Munehiro Iwata

An air pump apparatus is provided which uses an electric actuator that can electrically operate a pneumatic device such as a suction pad or air chuck. The air pump apparatus includes an air cylinder having a built-in piston, and an electric actuator configured to move the piston linearly and relatively to the air cylinder, using the electric motor as a drive source. Air under negative pressure and/or positive pressure generated by the electric actuator causing the piston of the air cylinder to move linearly is used to operate a pneumatic device.

Air pump apparatus using electric actuator and air pump system

At both sides of a pair of doorsL,R, a pair of television cameras (two-dimensional image sensors)A,B for detecting a moving object, and a pair of spare infrared ray sensorsA,B are provided. A central control unitcalculates the position and moving direction of moving object by image processing of outputs of television camerasA,B, and predicts the passing position of moving object on the vertical plane P when the moving object approaches, thereby calculating the target opening degree of a pair of doorsL,R individually, and determines the target opening degree of doors in full closing when the moving object leaves away, and thus outputs move command signals to motor controllersL,R so that the pair of doorsL,R may be set at the target opening degree.

Automatic door apparatus

Growing community of inventors

Tokyo, Japan

Miki Tobita