Hitachi Kiden Kogyo Kabushiki Kaisha

Hitachi Kiden Kogyo K.k.

Junichi Teruta

Michihiro Tanaka

Shigeo Yamanishi

A transporting system includes plural primary dispersedly arranged linear induction motors and plural continuously movable bodies connected by a secondary conductor in an endless path. At least one of the linear induction motors is directly controlled by an inverter control device, and the remaining linear induction motors are switchably connected to a power source. A running speed of the moveable bodies is detected, and the difference between the detected running speed and a desired running speed is used to control the inverter control device and the switching of the remaining induction motors to the power source. A voltage controller can be used in place of the inverter control device.

Method of driving plural linear induction motors in a transporting system

A control system in a goods assorting apparatus whereby the moving state of an assorting carrier by the linear motor driving system is detected by a group of photoelectric switches which are arranged at regular intervals in each section of a reaction plate for detection of the speed of the assorting carrier and issuance of synchronizing signals. This control device ensures accurate dividing of goods into the specified assorting destination.

Growing community of inventors

Amagasaki, Japan

Junichi Teruta