Title:
AUTOMATIC DOOR CHECK
Document Type and Number:
Japanese Patent JPS52107148
Kind Code:
A
Abstract:
An automatic door closer includes a closer shaft to which the door to be closed is connected for turning movement therewith about the axis thereof, and spring means biasing said closure shaft to a position in which the door is closed. The door closer includes further means for releasably holding the closer shaft and the door connected thereto in any adjusted position when the door is opened beyond a predetermined angle.
Inventors:
HORUSUTO TEIRUMAN
Application Number:
JP2213777A
Publication Date:
September 08, 1977
Filing Date:
March 01, 1977
Export Citation:
Assignee:
DORMA BAUBESCHLAG
International Classes:
E05F3/20; E05F3/22; (IPC1-7): E05F3/10; E05F3/22