| 主权项 |
1. A chain hoist, comprising:
a body; a hoist chain passing through the body; a first through-hole in the body for the hoist chain; a second through-hole in the body for the hoist chain; an actuator arrangement for operating the chain hoist, the actuator being used for moving the hoist chain through said through-holes in a lifting or lowering direction of the chain hoist, wherein on the side of at least one through-hole the portion of the hoist chain moving outside the body is provided with a limiter member whose position in the longitudinal direction of the hoist chain is adjustable, the limiter member being provided with a detectable sensor; and a sensor detection member is provided in the vicinity of said through-hole to detect the detectable sensor at a predetermined distance. |
