DOOR SUSPENSION DEVICE AND DOOR APPARATUS COMPRISING SAME

Title:

DOOR SUSPENSION DEVICE AND DOOR APPARATUS COMPRISING SAME

Document Type and Number:

WIPO Patent Application WO/2012/157492

Kind Code:

A1

Abstract:

Provided is a door suspension device of a compact structure whereby travel resistance caused by a mechanism for preventing derailing can be reduced while derailing of a door roller and tilting of the door during opening and closing of the door are reliably prevented. First door rollers (21, 22) travel abutting a lower rail (13b) and are rotatably supported on a first door roller support member (23) for suspending a door (11). Second door rollers (26, 27) are rotatably supported on swing members (24, 25) swingably connected to the first door roller support member (23), and are provided so as to be able to abut against an upper rail (13a). A drive connector (28) holds the door (11) and connects the door to an open/close drive mechanism (12). An elastic connection mechanism (29) has an elastic part (33) whereby the relative positions of the second door rollers (26, 27) and the drive connector (28) can be altered, and connects the swing members (24, 25) and the drive connector (28) together. The second door rollers (26, 27) are installed between the first door rollers (21, 22) located on the front and back ends of the door.

Inventors:

TAKAHASHI KAZUTAMA (JP)
KAWASAKI KATSUJI (JP)

Application Number:

PCT/JP2012/061886

Publication Date:

November 22, 2012

Filing Date:

May 09, 2012

Export Citation:

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Assignee:

NABTESCO CORP (JP)
TAKAHASHI KAZUTAMA (JP)
KAWASAKI KATSUJI (JP)

International Classes:

E05D15/06; B61D19/00; B61D19/02; E05F15/14

Domestic Patent References:

WO2008149632A1	2008-12-11
WO2008149632A1	2008-12-11

Foreign References:

JPS474623Y1	1972-02-17
JPH102330A	1998-01-06

Other References: