Elevator door device

Abstract

A door device for an elevator, in which a flexible air-tight member (6) extended in the opening / closing direction (A) of a door body (1b) is attached to the door body (1b) so as to be in pressed contact with a floor-side surface (4b) and, as the door (1) is opened and closed, the air-tight member (6) slides on the floor-side surface (4b) while being in pressed contact with the floor-side surface (4b). A low friction section (6b) is formed on that surface (6a) of the air-tight member (6) with which the floor-side surface (4b) is in pressed contact.

Description

technical field [0001] The present invention relates to an elevator door apparatus in which a flexible airtight member extending in the opening and closing direction of a door main body is pressed against a surface on the ground side by virtue of its flexibility. Attached to the door main body, the airtight member slides on the ground-side surface as the door is opened and closed in a state of being pressure-contacted to the ground-side surface. Background technique [0002] In Patent Documents 1 to 3, various airtight members are proposed that block the gap between the elevator door and its mounting frame to block smoke. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2004-083145 [0004] Patent Document 2: Japanese Patent Application Laid-Open No. 7-157254 [0005] Patent Document 3: Specification of Japanese Patent Laid-Open No. 2004-323222 [0006] In Patent Documents 1 to 3, Patent Document 3 discloses a door device for an elevator in which a flexible airti...

AI Technical Summary

Problems solved by technology

[0006] In Patent Documents 1 to 3, Patent Document 3 discloses a door device for an elevator in which a flexible airtight member extending in the opening and closing direction of the door body is pressed against the ground by virtue of its flexibility. The airtight member slides on the ground side surface with the opening and closing of the door in the state of being in pressure contact with the ground side surface. In the door device of such an elevator, the airtight member is attached to the sill of the door, and when the door is opened and closed, an increase in door opening and closing resistance and abnormal noise are generated, or when the door is opened and closed, due to The stick slip phenomenon caused by the sliding of the airtight parts relative to the sill produces abnormal sound, or when the gap between the door and the sill becomes smaller when the door is opened and closed, the air The airtight parts are crushed, and the contact area between the sill and the airtight parts becomes larger, which increases the opening and closing resistance of the door, or makes an abnormal sound when the door is opened and closed.

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