SAFETY DEVICE FOR DECK DOOR IN VEHICLE FOR HIGH LIFT WORK

PROBLEM TO BE SOLVED: To provide a safety device for a deck door in a vehicle for high lift work which can prevent unexpected opening of the deck door.SOLUTION: A safety device of a deck door in a vehicle for high lift work includes a boom housed state detector 11 for detecting a housed state of a boom 130, locking means 30 of locking a deck door 143 of a deck 140 and control means of controlling the locking means. The control means 20 unlocks the locking means 30 when a housed state is detected by the boom housed state detector 11 and locks the locking means 30 when a non-housed state is detected by the boom housed state detector 11. Since the deck door is locked in a non-housed state of the boom 130, unexpected opening of the deck door 143 due to contact with an object or vibration when the deck 140 is moved to a high place can be prevented. 【課題】デッキ扉が不意に開くことを防止できる高所作業車におけるデッキ扉の安全装置を提供する。【解決手段】ブーム130の格納状態を検出するブーム格納状態検出器１１と、デッキ140のデッキ扉143を施錠する施錠手段３０と、施錠手段３０を制御する制御手段２０とを備え、制御手段２０は、ブーム格納状態検出器１１が格納状態と検出している場合に施錠手段３０を解錠し、ブーム格納状態検出器１１が非格納状態と検出している場合に施錠手段３０を施錠する。ブーム130が非格納状態である場合にデッキ扉143を施錠するので、デッキ140を高所に移動させた状態で物体との接触や振動によってデッキ扉143が不意に開くことを防止できる。【選択図】図１