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Elevator door device

A door device and elevator technology, which is applied in the field of elevator door devices, can solve the problems of abnormal sound and increased door opening and closing resistance, and achieve the effects of suppressing abnormal sound, reducing opening and closing resistance, and suppressing the generation of abnormal sound

Inactive Publication Date: 2008-02-27
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

Experimental program
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Embodiment approach 1

[0027] Next, Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 4 . Fig. 1 is a view of a hall-side door and a door frame of a double-door-type elevator viewed from the hall side, Fig. 2 is an exploded perspective view of one door in Fig. 1 viewed from the hoistway side, and Fig. 3 is along the arrow direction Looking at the longitudinal cross-sectional view of the main part of the cross section taken along the line III-III in FIG. 1 , FIG. 4 is an enlarged perspective view of the airtight member in FIG. 3 .

[0028] In FIGS. 1 to 4 , in the elevator hall, between the hall door 1 and the door casing vertical frame 2 , between the hall door 1 and the door casing upper frame 3 , and between the hall door 1 and the door casing There is a gap between the landing sills 4, so the fire barrier and smoke barrier properties are poor. Then, in order to improve smoke barrier property and fire barrier property, the airtight member is arrange|positioned i...

Embodiment approach 2

[0037] Next, Embodiment 2 of the present invention will be described with reference to FIGS. 5 and 6 . FIG. 5 is a longitudinal sectional view of a main part, and FIG. 6 is an enlarged perspective view of the airtight member in FIG. 5 .

[0038] In the second embodiment of the present invention, as the low friction portion 6b, on the pressure contact surface 6a of the airtight member 6 that is in pressure contact with the surface 4b on the ground side, in the opening and closing direction A of the door 1 at a predetermined value A plurality of ridges 6c extending in the direction perpendicular to the opening and closing direction A of the door 1, that is, in the intersecting direction, are provided at intervals.

[0039] In addition, the above-mentioned protruding lines 6c are formed at the same time when the above-mentioned airtight member 6 is formed of rubber.

[0040] With the above configuration, as in the case of the above-described first embodiment of the present inven...

Embodiment approach 3

[0043] Next, Embodiment 3 of the present invention will be described with reference to FIGS. 7 and 8 . FIG. 7 is a longitudinal sectional view of a main part, and FIG. 8 is an enlarged perspective view of the airtight member in FIG. 7 .

[0044] The third embodiment of the present invention is configured such that, as the low friction portion 6b, protrusions 6d are dispersed on a crimping surface 6a of the airtight member 6 that is in pressure contact with the surface 4b on the ground side.

[0045] In addition, the projection 6d is formed at the same time when the airtight member 6 is formed of rubber, or formed by coating or the like.

[0046] With the above configuration, as in the case of the above-described first embodiment of the present invention, by reducing the contact area between the lower airtight member 6 of the landing door and the landing sill 4, the adhesion of the airtight member 6 and the sill 4 is prevented. The resulting increase in travel resistance. In ...

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Abstract

The present invention provides a door device for an elevator, a flexible airtight member (6) extending in the opening and closing direction (A) of the door main body (1b), so as to be crimped to the surface on the ground side by virtue of its flexibility ( 4b) is attached to the door main body (1b), and the airtight member (6) is in pressure contact with the surface (4b) on the ground side, as the door (1) opens and closes, And slide on the surface (4b) of the above-mentioned ground side, in the door device of such an elevator, on the crimping surface (6a) of the above-mentioned airtight member (6) that is crimped with the surface (4b) of the above-mentioned ground side A low friction portion (6b) is formed.

Description

technical field [0001] The present invention relates to a door apparatus for an elevator in which a flexible airtight member extending in the opening and closing direction of a door body is in a state of being pressed against a surface on the ground side by virtue of its flexibility. The said airtight member is attached to the said door main body, and the said airtight member slides on the said surface side with the opening and closing of the said door in the state which press-contacted to the said surface on the said floor side. Background technique [0002] In Patent Documents 1 to 3, various airtight members are proposed to seal the gap between the door of the elevator and the installation frame thereof to seal off the 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: Japanese Patent Application Laid-Open No. 2004-323222 [0006] In Pate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B13/30
CPCB66B13/301
Inventor 铃木稔也饭田真司近藤丈治田中繁之
Owner MITSUBISHI ELECTRIC CORP
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