Top-opening type door device of elevator

Abstract

To provide a top-opening type door device of an elevator capable of partially opening a landing entrance.SOLUTION: A transmission shaft 31 can be moved in the axial direction of the transmission shaft 31 between a normal position and a detachment position. An attached state of a low-speed side sprocket 18 relative to the transmission shaft 31 becomes a connection state by inserting a movable connecting body 33 into a connected groove 31a when the transmission shaft 31 is in the normal position. The movable connecting body 33 is brought into contact with the transmission shaft 31 on the outside of the connected groove 31a against a connection spring 34 as the transmission shaft 31 moves to the detachment position, and the attached state of the low-speed side sprocket 18 relative to the transmission shaft 31 becomes an independent rotation state.SELECTED DRAWING: Figure 5

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