Omron Tateisi Electronics Co.

Takashi Tanaka

Takezo Sano

Tsutomu Shimizu

Haruo Ogata

Kozo Maenishi

Hirofumi Koga

Kenichi Tsuruyoshi

Youichi Nakanishi

Yoshikiyo Imai

Yutaka Nozaki

Yoshiharu Kitagawa

Yuji Yoasuoka

An electromagnetic relay having an electromagnetic block with a roughly U-shaped iron core formed with a pair of bent opposing magnetic poles at both the ends thereof and with a coil wound therearound via a spool; and an armature block with both ends thereof opposing the magnetic poles and with the middle portion thereof pivotally supported. A permanent magnet is disposed between the two opposing magnet poles of the iron core so as to oppose said armature. The permanent magnet is supported by a support member formed integral with the spool of the electromagnetic block. The armature is pivotally supported by the electromagnetic block.

Electromagnetic relay

An electromagnetic relay with a contact mechanism portion being arranged above an electromagnet portion secured to a base, wherein the electromotive portion is inserted under pressure into the base, is secured, and also, the respective terminals of the contact mechanism portion are inserted under pressure from above into the base and are secured, whereby the electromagnet portion is seucred through the direct pressure insertion thereof into the base, the positional accuracy with respect to the base is increased.

An electromagnetic apparatus combined a pair of contactors into one unit is provided with an interlocking mechanism for ensuring the alternative operations between the contactors, the interlocking mechanism including a pair of interlock levers each of which the end is rotatably inserted into an engaging groove provided in an element of the respective contactor which is moved to open and close a contact mechanism of the contactor, whereby the engagement between the end of interlock lever and the engaging groove of movable element can be provided with enough strength and can be easily assembled.

Electromagnetic apparatus combined a pair of contactors into one unit

An electromagnetic contactor according to the present invention is so constructed that the electromagnetic device and the fixed point of contact are fixedly fitted into a casing which is divisible in the direction along the moving direction of a polar contact. Moreover, a bottom casing with a screw mounting hole is fitted in the outer peripheral portion at the lower end of the casing. Therefore, the rigidity of the casing as a whole is enhanced, and at the same time the working characteristics can be prevented from being changed when the screw is mounted. Furthermore, the positioning accuracy of the electromagnetic device relative to the fixed point of contact is determined only by the dimensional accuracy of the casing and the electromagnetic device, and by the position accuracy of the fixed point of contact. The contact pressure is improved to be stable.

Electromagnetic contactor

A flat pack type electromagnetic relay having a bracket-shaped stationary core and a bracket-shaped armature is disclosed. The core is provided with a spool for an energizing coil and the spool has engaging portions extending from its end flanges. The armature is pivotally supported by the engaging portions to close or open electrical contacts in response to a current applied to the coil.

Growing community of inventors

Takatsuki, Japan

Takashi Tanaka