OVER-SPEED STATE DETECTION DEVICE AND STAIRWAY ELEVATING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide an over-speed state detection device capable of exactly detecting an over-speed state despite the compact-shaped device. SOLUTION: A cam member 29 integrally rotating according to rotation of a rotating body comprises a cam surface 30 extended along a peripheral direction of the rotating body and extended to be gradually located on a diameter direction outer side as going to a rotating direction lower side of the rotating body and is constituted to contact and guide a driven body 32 on the cam surface 30 to be moved along the radial direction of the rotating body according to rotation of the rotating body. The driven body 32 is provided in a state in which flip-up amount to the radial direction outside from a maximum guide position located at the outermost radial direction outside when the driven body 32 is contacted and guided on the cam surface 30 becomes less than set amount when rotational speed of the rotating body is less than set rotational speed, and flip-up amount to the radial direction outside from the maximum guide position becomes set amount or more when the rotational speed of the rotating body is the set rotational speed or more. COPYRIGHT: (C)2009,JPO&INPIT