| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the operability of a portable switch device by providing a main body with an operation box with a function of reeling and unreeling a connection cable, and simplifying the reeling operation. SOLUTION: With respect to the operation box of an elevator device for cargo handling wherein a platform is driven and vertically moved, a reel 40 is installed rotatably on the main body 31 of the operation box, and a portable switch device 50 for operating the platform is connected with the tip of a connection cable 33 unreeled out of the reel. A leaf spring 45 for biasing the reel 40 in the direction in which the connection cable 33 is reeled is installed, and further a locking means 53 for stopping the rotation in the direction in which the reel is taken up. The locking means is provide with a lock plate fixed coaxially with the fulcrum of the rotation of the reel 40, and a lock key 56 freely engagedly with a recess formed in the circumference of the lock plate, and attached to the reel in a rotatable manner.</p> |
