Title:
SUSPENSION TYPE EXPANDABLE GATE DOOR
Document Type and Number:
Japanese Patent JP3546399
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a suspension type expandable gate door capable of preventing sagging of a moving side end part when a door body is expanded, facilitating an assembly work, and preventing generation of any gap on a lower part side between vertical frames adjacent to each other when the door body is contracted.
SOLUTION: This expandable gate door comstitutes door bodies 2, 3 provided with a pantograph mechanism 7 in which a plurality of right-rising inclined links 13 and left-rising inclined links 14 intersect with each other at three or more intersection parts, and connect to each other at each intersection part by pivots 15-17, and a plurality of vertical frames 9 connected to the pantograph mechanism 7. One end side of the door bodies 2, 3 is connected to fixed members 4, 5 such as suspension strays, etc., and connection holes on the center side in the longitudinal direction of the inclined links 13, 14 among three or more connection holes for the pivots 15-17 of the inclined links 13, 14 are placed to a lower side in the width direction of the inclined links 13, 14 of a segment to connect the centers of the connection holes on both end sides in the longitudinal direction.
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Inventors:
Kishiichi Furukawa
Tsutomu Ikeda
Tsutomu Ikeda
Application Number:
JP25983298A
Publication Date:
July 28, 2004
Filing Date:
September 14, 1998
Export Citation:
Assignee:
Nippon Koki Co., Ltd.
International Classes:
E06B11/02; (IPC1-7): E06B11/02
Domestic Patent References:
| JP9177455A | ||||
| JP3048096U | ||||
| JP55140698U |
Attorney, Agent or Firm:
Takashi Tanifuji
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