EP 0215264 B2 19920401 - DOOR CLOSER
Title (en)
DOOR CLOSER
Publication
Application
Priority
DE 8526660 U 19850918
Abstract (en)
[origin: EP0215264A2] 1. Door closer with a rotating member which can be connected to the door, the rotary movement of which can be converted into a displacement movement of a piston rod (4), a piston (1) wich can be displaced against the force of a return spring (5) being located in a cylinder (2) at the end of the piston rod furthest from the rotating member and when the door is opened a hydraulic fluid being forced by the piston from the front cylinder space (6) picked up by the piston rod through a nonreturn valve into a rear cylinder space (7), from which when the door is turned back, it flows back via a first housing channel (14) and via a first throttle valve (12) installed in it, characterized in that the first throttle valve (12) is connected hydraulically to a second throttle valve (18) via a second channel (16) opening out into the front cylinder space (6), the mouth (19) of the second channel (16) is nearer in the front cylinder space (6) to the rotating member than the mouth (13) of the first channel (14) in the front cylinder space (6) and in that the piston (1) with an opening angle of the door of more than approximately 808 to 908 closes the said mouth (13) of the first channel (14), whilst the said mouth (13) of the first channel (14), whilst the said mouth (19) of the second channel (16) is open every opening angle of the door.
IPC 1-7
IPC 8 full level
CPC (source: EP)
E05F 3/12 (2013.01); E05F 3/223 (2013.01); E05Y 2201/21 (2013.01); E05Y 2201/256 (2013.01); E05Y 2201/264 (2013.01); E05Y 2900/132 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0215264 A2 19870325; EP 0215264 A3 19870812; EP 0215264 B1 19890412; EP 0215264 B2 19920401; AT E42129 T1 19890415; DE 3662801 D1 19890518; DE 8526660 U1 19870122; ES 2002753 A6 19881001
DOCDB simple family (application)
EP 86110703 A 19860802; AT 86110703 T 19860802; DE 3662801 T 19860802; DE 8526660 U 19850918; ES 8601997 A 19860918