Door device of elevator

Abstract

The invention provides a door device of elevator. The door device of elevator is capable of ensuring sufficient air tightness between a cage door and a threshold member. The door device of elevator is characterized by comprising a cage door, a threshold member for guiding the cage door toward the opening / closing direction at the lower end of an entrance / exit, and a blocking member capable of moving up and down between a blocking position for blocking between the cage door and the threshold member and a retreat position below the upper end of the threshold member. The cage door is provided with a lifting member. The lifting member lifts the blocking member towards the blocking position by the moving of the cage door in the closing direction while being in contact with the blocking member.When the cage door moves in the closing direction, the lifting member is in contact with the blocking member which is at the retreat position, and when the cage door moves to the fully closed position, the lifting member lifts the blocking member to the blocking position. The blocking member has a size capable of blocking the space between the cage door and the threshold member, and can be liftedto the fully closed position by the lifting member, whereby the upper end of the blocking member is brought into close contact with the lower end of the cage door.

Description

technical field [0001] The present invention relates to a door device for opening and closing the entrance and exit of an elevator. Background technique [0002] Conventionally, there is known an elevator door apparatus having improved airtightness between a door and a sill member guiding the door in an opening and closing direction (see Patent Document 1). Such as Figure 22 As shown, the door device has: a rectangular plate-shaped door 101 for opening and closing the entrance; a threshold portion 102 extending horizontally at the lower end of the entrance and guiding the door 101 in the opening and closing direction; The shielding member 103 for shielding the gap. The shielding member 103 extends downward from the lower portion of the door 101 and extends in the horizontal direction, and is formed of a flexible and elastic material such as rubber. The shutter member 103 makes the lower end portion 103A contact the upper surface of the rocker portion 102 , and slides the ...

AI Technical Summary

Problems solved by technology

[0007] However, in the door apparatus 100, since the shielding member 103 has flexibility and must be able to slide relative to the threshold portion 102 when the door 101 is opened and closed, the lower end 103A of the shielding member 103 is not firmly pressed against the threshold. Section 102 on

Therefore, a large force is applied to the shielding member 103 due to an air pressure difference between the inside and the outside of the car due to the air pressure adjustment in the car, etc., thereby sometimes failing to secure the gap between the shielding member 103 and the sill portion 102 . air tightness

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