elevator door device

Abstract

An object of the present invention is to provide an elevator door apparatus capable of ensuring sufficient airtightness between a car door and a rocker member. The present invention is characterized in that it has: a car door; a threshold member that guides the car door in the opening and closing direction at the lower end of the entrance; A blocking member that moves up and down between retracted positions. The car door has a lifting portion that lifts the blocking member to the blocking position by moving the car door in the door-closing direction while in contact with the blocking member. The door is moved in the direction of closing the door, so that the lifting part contacts the blocking part at the retracted position, and the car door moves to the fully closed position, so that the lifting part lifts the blocking part to the blocking position, and the blocking part has the ability to block the car door and the threshold part The size of the space is lifted to the fully closed position by the lifting part, so that the upper end of the blocking member is in close contact with the lower end of the car 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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