Title:
UNLOCKING DEVICE OF ELEVATOR LANDING DOOR AND METHOD OF MODIFYING THE DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/090218
Kind Code:
A1
Abstract:
An unlocking device of an elevator landing door, wherein a triangular key is rotated in place of the vertical operation of the key removal bar to unlock the lock device. The unlocking device is formed by modifying an unlocking device of an elevator landing door wherein an unlocking keyway mouth piece (3) having a keyway in which a key removal bar is inserted is fixed to the rear side of the elevator landing door (1), and an unlocking lever (2) is pushed up by operating the key removal bar in a vertical direction to unlock the lock device (4) of the landing door. The unlocking device comprises an operating piece (12) installed at the same position as the unlocking keyway mouth piece having the keyway in which the key removal bar at the rear side of the landing door is inserted and having the keyway mouth piece (11) in which the triangular key is inserted, an operating lever (13) fixed to the operating piece and having an operating pin (14) fixed to the operating end thereof, and a trigger (15) installed between the operating pin of the operating lever and the connection metal (10) of the lock device of the landing door and connecting the opening pin and the connecting metal to each other. The unlocking device (2) is not used.
Inventors:
SAKURAGI TOSHIO (JP)
Application Number:
PCT/JP2004/003920
Publication Date:
September 29, 2005
Filing Date:
March 23, 2004
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
SAKURAGI TOSHIO (JP)
SAKURAGI TOSHIO (JP)
International Classes:
B66B13/16; (IPC1-7): B66B13/16
Foreign References:
| JPS5264467U | 1977-05-12 | |||
| JPS5942261U | 1984-03-19 | |||
| EP1100900A2 | 2001-05-23 |
Other References:
See also references of EP 1728754A4
Attorney, Agent or Firm:
Takada, Mamoru (Takahashi & Partners 5th Floor Intec 88
Bldg. 20, Araki-ch, Shinjuku-ku Tokyo 07, JP)
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