PROBLEM TO BE SOLVED: To provide a safety device that can securely lock an operating lever of a concrete mixer truck, or the like, so that the operating lever is not pulled up above a predetermined operation position, and which does not deteriorate operability of the operating lever.SOLUTION: The present invention relates to a safety device for locking an operating lever 1 so that the operating lever is not pulled up above a predetermined operation position. At a halfway portion near the center of tilt of the operating lever 1, there is rotatably provided a lock lever 3 one end of which is a hook portion 6 and the other end of which is an operation portion 7. A bracket 2 includes a latch pin 4 (latch portion) to which the hook portion 6 of the lock lever 3 is latched when the operating lever 1 is tilted to the predetermined operation position. A spring mechanism 5 is provided between the lock lever 3 and the operating lever 1. When the hook portion 6 is latched to the latch pin 4 of the bracket 2, the spring mechanism biases the hook portion 6 in a direction where the hook portion is pressed against the latch pin 4. When the hook portion 6 is unlatched from the latch pin 4, the spring mechanism reverses the direction of the biasing.SELECTED DRAWING: Figure 1
【課題】コンクリートミキサー車等の操作レバーにおける操作性の悪化を招くことなく該操作レバーを所定の操作位置から引き上げられないように確実にロックし得る安全装置を提供する。【解決手段】操作レバー1を所定の操作位置から引き上げられないようにロックする安全装置に関し、一端をフック部6とし且つ他端を操作部7としたロックレバー3を操作レバー1の傾動中心に近い中途部に回動自在に備えると共に、該操作レバー1を所定の操作位置に傾動した時にロックレバー3のフック部6を掛止させるための掛止ピン4(掛止部)をブラケット2に設け、該ブラケット2の掛止ピン4とフック部6との掛止時に該フック部6を掛止ピン4に押圧する向きに付勢し且つ該掛止ピン4とフック部6との脱離時に付勢の向きを反転するバネ機構5をロックレバー3と操作レバー1との間に設ける。【選択図】図1
SAFETY DEVICE OF OPERATING LEVER
操作レバーの安全装置
2017-10-12
Patent
Electronic Resource
Japanese
IPC: | G05G CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY , Steuer- oder Regelvorrichtungen oder Steuer- oder Regelsysteme gekennzeichnet ausschließlich durch mechanische Einzelheiten / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS |
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