MANUALLY OPERATION MEANS FOR ELECTRIC ACTUATOR

摘要

PROBLEM TO BE SOLVED: To provide an electric actuator capable of being manually operated even in a power failure. SOLUTION: This manually operation means is equipped with a handle shaft 6 inserted through a through hole 4 formed on a frame 3 of a bed and constituted on a power reception part 5 in a manner capable of being inserted into/pulled out of the power reception part 5 connected to the motor output shaft of an electric actuator 1 and a handle part 7 to cause rotation force to the handle shaft 6. A bellowing type tubular member 8 and a grip part 9 are equipped on the handle shaft 6. The bellows type tubular part 8 ha a flange part to be engaged with the through hole 4. The grip part 9 has several slip-proof grooves. Within the range of the rising/falling stroke of the back rest part 2.