Title:
エレベータ前両開き防火子扉付両引き防火戸
Document Type and Number:
Japanese Patent JP4152093
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a normally opened fire door unit capable of securing large width at the front of an elevator. SOLUTION: This device is provided with double-leaf parent fire doors suspended from rails by sash pulleys to roll freely, and provided with lock members to be automatically closed from totally opened positions on the right and the left to totally closed positions, fire child doors as double-leaf child fire doors respectively provided on the right and the left parent fire doors, and hinged to be automatically closed, and to be opened in one direction when the parent doors are totally closed, a locking device to lock and unlock the lock members provided on the parent fire doors, and an alarm device to generate an alarm by interlock with sliding door unlocking action.
Inventors:
Kazuaki Ando
Application Number:
JP2001262407A
Publication Date:
September 17, 2008
Filing Date:
July 26, 2001
Export Citation:
Assignee:
Towa Co., Ltd.
International Classes:
B66B5/02; E06B7/32; A62C2/06; B66B13/30
Domestic Patent References:
| JP4298485A | ||||
| JP57021783U | ||||
| JP2036116B2 | ||||
| JP5047266Y2 | ||||
| JP55050159Y1 |