OPERATION DEVICE

PROBLEM TO BE SOLVED: To provide an operation device capable of generating an operation signal by switch input and determining a failure more reliably when the contact of one location fails.SOLUTION: An operation device 1 includes three contact circuits 20 each of which includes fixed terminals 21, 22 and a slider 23 as a movable contact that selectively changes a state between the fixed terminals to an ON state or an OFF state, and is configured such that, in response to ON operation performed on an operation unit 10, the slider 23 moves from an initial position P1 where all contact circuits are in an OFF state to an end position P3 where all contact circuits are turned in an OFF state. The operation device has a determination unit 30 to which the contact circuits 20 are connected, and an operation signal generation unit 40 that outputs a signal indicating that the operation unit 10 is in a state of ON operation. Assuming that one of the contact circuits 20 is a reference contact circuit 20A and the others are output contact circuits 20B, 20C, the reference contact circuit 20A is provided such that distance from the initial position P1 to a position P2 where the reference contact circuit is turned in an ON state is smaller as compared with the output contact circuits 20B, 20C. 【課題】スイッチ入力により操作信号を発生させるとともに、１箇所の接点が故障したときに、より確実に故障と判断できる操作装置を提供する。【解決手段】固定端子２１、２２と、これらの固定端子間を選択的にオン又はオフする可動接点である摺動子２３と、からなる接点回路２０を３組が備えられ、操作部１０がオン操作されることによって、摺動子２３を全てがオフ状態の初期位置Ｐ１から全てがオン状態となる終端位置Ｐ３まで移動するように構成してなる操作装置１において、接点回路２０が接続される判断部３０と、操作部１０がオン操作の状態であることを出力する操作信号発生部４０と、を有するとともに、接点回路２０のうちの１組を基準接点回路２０Ａとし、その他を出力用接点回路２０Ｂ、２０Ｃとし、基準接点回路２０Ａは、出力用接点回路２０Ｂ、２０Ｃに比べて、初期位置Ｐ１からオン状態となる位置Ｐ２までの距離を近づけて設けられている。【選択図】図２