EP 0016861 B1 19840523 - ACTUATING DEVICE FOR A DOOR
Title (en)
ACTUATING DEVICE FOR A DOOR
Publication
Application
Priority
DE 2912949 A 19790331
Abstract (en)
[origin: EP0016861A2] 1. A door operating device comprising a two-chamber working cylinder for moving the door (1) and the piston (3) of which is connected to the door through a piston rod, further comprising an electromagnetically actuated door valve (9) by which each chamber (5, 6) of the working cylinder can usually be connected alternately to a pressure source or a relieving location, and comprising a manually operable emergency control, characterised in that for the manual emergency operation of the door, the emergency control has a multiway valve (11) arranged in a closing line (8) of the device and which, in its unoperated position (Figures 1 and 4), has a passage for the pressure medium switched-in or switched-out by the door valve (9) and which, on switching-over (Figures 2 and 3), short circuits both chambers (5 and 6) of the working cylinder (4) for the common build-up or decline of pressure and can be mechanically latched in that position and pneumatically released to return it to its initial position, wherein a latch (12) for the multiway valve (11) can only be removed automatically with a pressure build-up initiated by the door valve (9), effecting the closing operation of the door.
IPC 1-7
IPC 8 full level
E05F 15/49 (2015.01); E05F 15/56 (2015.01)
CPC (source: EP)
E05F 15/49 (2015.01); E05F 15/50 (2015.01); E05Y 2900/506 (2013.01)
Citation (examination)
Bosch-Druckschrift VDT-AKB 130/2, Blatt 1(2.67)
Designated contracting state (EPC)
AT CH DE FR GB IT
DOCDB simple family (publication)
EP 0016861 A2 19801015; EP 0016861 A3 19801126; EP 0016861 B1 19840523; AT E7618 T1 19840615; DE 2912949 A1 19801016; DE 2967011 D1 19840628
DOCDB simple family (application)
EP 79104833 A 19791203; AT 79104833 T 19791203; DE 2912949 A 19790331; DE 2967011 T 19791203