Matsushita Electric Works, Ltd.

Other

Nobuo Kobayashi

Mitsuki Nagamoto

Atsushi Nakahata

Masanori Motoyama

Shigeyuki Okumura

An electromagnetic relay includes an electromagnet block and an armature block both mounted together on a relay base. The armature block is magnetically coupled to the electromagnet block such that it is magnetically driven thereby to move linearly between two operating positions for actuating the contact assembly into open and closed contact conditions. The armature block is supported on the base by means of a U-shaped balancing spring with a pair of parallel spring arms in the form of a spring leaf and a web integrally bridging the parallel spring arms at one end of each arm. The balancing spring is secured to the base at the web and carries the armature block with the other end of each spring arm being connected to each of the opposite sides of the armature block at a point an equal distance from said one end of each spring arm such that the parallel spring arms and web are cooperative with said armature block to define a parallelogram, allowing said armature block to swing in a linear path parallel with the length of the web.

Armature biasing means in an electromagnetic relay

Electromagnetic relay comprising an electric switching block wherein fixed contact terminals, movable contactor terminal and coil terminals of respective switch sections are integrally held as embedded in an array along respective both longitudinal side edges of an elongated insulative base, and an electromagnet block mounted on the switching block base between the respective terminal arrays for driving their movable contactors by a rocking armature end or ends electromagnetically operated. At least contact holding parts of each pair of the fixed contact terminals are disposed in opposing relation to each other, whereby both side movable contacts of the movable contactor are disposed at the same distance positions from an end joined to the movable contactor terminal, while other terminal pin ends of the fixed contact terminals are disposed out of the opposing relation.

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Ise, Japan

Nobuo Kobayashi