Fanuc Corporation

Masatoyo Sogabe

Yoichi Amemiya

Shigeki Kawada

Noboru Iwamatsu

Keiji Sakamoto

Yoshiharu Inaba

Tomonaga Yamamoto

Kanemasa Okuda

Kazushi Kumagai

Hiroyuki Uchida

Shunsuke Matsubara

Suguru Takamizawa

Yoshifumi Shimura

Kiyoshi Tagami

Fumio Mitoguchi

Syougo Higashi

Katsuya Sugahara

Kanemas Okuda

Masashi Nishina

A fixture which secures a temperature detection element to a winding provided around a stator core of a motor, includes a main body to be inserted into a gap between the stator core and the winding, and an engagement portion formed on one end side of the main body on one side of the main body to engage with the rim of the opening of the winding. On the one side of the main body a recess is formed to house a temperature sensitive part of the temperature detection element. The depth of the recess is less than the maximum thickness of the temperature sensitive part of the temperature detection element.

Fixture for securing temperature detection element, motor, and method of securing temperature detection element

Permanent magnet field pole for linear motor

Motor housing with integrally molded electric connector

Method for inserting rotor of electric motor

Optical encoder with grounded coding plate

Electrically operated injection molding machine

Digital servo system

In an AC servomotor constructed so that the outer circumference (21b) of a stator core (21) formed by laminating thin steel plates (22) is used as part of a motor housing, bearing mounting bores (25a, 26a) for receiving bearing members (27, 28) to be mounted on a pair of brackets (25, 26) attached to the front and rear ends of the stator core (21) and mounting surfaces (25b, 25c) of the motor are formed with accurate concentricity and squareness with reference to the center bore (21a) and the outer circumference (21b) of the stator core (21) after firmly joining the brackets (25, 26) to the stator core (21). Thus, a rotor (29) is supported with high accuracy in concentricity with the stator core (21) on the brackets (25, 26) and the squareness of the output shaft (29a) to the mounting surfaces (25b, 25c) is established.

AC servomotor and a method of manufacturing the same

A rotor for a synchronous motor, having a plurality of first magnetic poles formed by a plurality of permanent magnets respectively and disposed at practically equal circumferential intervals on the outer circumference of a yoke fixed to a rotatable motor shaft, and a second magnetic pole projecting radially from the yoke adjacently to each first magnetic pole and the second magnetic pole wherein the shape of the pole face of each first magnetic poles are in a circular arc and the shape of the pole face of each of second magnetic pole is determined by a given equation so that the magnetic flux distribution established by a pair of the first magnetic pole and the second magnetic pole is substantially equivalent to a sinusoidal magnetic flux distribution in the sweeping effect by the armature coils of each phase of the stator.

Growing community of inventors

Hachioji, Japan

Masatoyo Sogabe