Idec Izumi Corporation

Kenji Miyauchi

Takao Fukui

Yasushi Kamino

Yoshio Sekino

Kazuya Okada

Ken Maeda

Masaki Nobuhiro

Hideo Niinai

Tokunori Tanaka

Yoshihiro Shima

In a case where a left-hand push-button switch is ON, a second relay RLis electrically de-energized to open a normally close contact RL-of the second relay RLso that a relay contact circuit RC is opened. If, in this state, a right-hand push-button switch is shifted to a second OFF state, a normally close contact R-of the right-hand push-button switch is opened. Thus, a third relay RLis not electrically de-energized and a first and a second circuits are in cutoff until both the right-hand and the left-hand push-button switches are returned to a first OFF state.

Enabler of teaching pendant

A push-button switchdisposed in a switch casehas c-contacts and a normally close contact electrically connected with a terminal blockvia conductors. Leading endsof cores of a cableintroduced into the switch caseare inserted in insertion holesformed in the terminal block. Screwsmounted to the terminal blockare tightened to press the leading endsof the cores against conductive connection portions, on one side, in the insertion holes, thereby to establish electrical connection.

Grip type switch device and controller for industrial machinery using the switch device

There are provided, together with two microswitches accommodated in a cylindrical compartment a manipulation member which can freely swing about a pivot portion in the directions of arrows A and B, a transmission member which can freely move in reciprocating motion within a specific range between a transmitting position and a non-transmitting position located along a radial direction of an arc which is the trajectory of the swing motion of the manipulation member in the directions of the arrows A and B, a contact member which can freely move in reciprocating motion within a specific range between an exposed position and a retracted position in the directions of arrows E and F, a driven member which can freely move in reciprocating motion in the directions of arrows G and H, and a restricting part fixed at a position opposing the contact member The swing motion of the manipulation member in the direction of the arrow B up to a point where the manipulation member goes into contact with the restricting part is transmitted to the microswitches via the transmission member and the driven member and the swing motion of the manipulation member in the direction of the arrow B is not transmitted to the microswitches after the contact member has gone into contact with the restricting part This arrangement makes it possible to achieve improved operability of an enable switch, enhanced safety with the provision of multiple contact mechanisms, and easier installation of the enable switch on a portable operator panel.

Enable switch

An actuator of the present invention comprises an operation key to be inserted into a key insertion hole formed in the safety switch, and a base The operation key is held on the base and capable of freely swinging in two orthogonal directions. The actuator also comprises means (e.g. a guide stopper and engagement spaces ) for selectively restricting the swinging movement of the operation key to either of the two directions.

Safety switch actuator

A push-button switch and a teaching pendant employing the same are provided. The push-button switch ensures that a push button is capable of switching ON/OFF the switch if one of contacts thereof should fail during an operation of the switch. For achieving this object, a switch case contains two c-contacts each having a snap action configuration and switching mechanisms for opening/closing the c-contacts When a push button is depressed, the switching mechanisms simultaneously open/close the c-contacts for turning ON/OFF a push-button switch

Growing community of inventors

Osaka, Japan

Kenji Miyauchi