Door closer

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Checks and closers – Liquid

Patent

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Details

16 49, 16 58, 16 72, 16DIG9, 16DIG17, E05F 322

Patent

active

047731257

ABSTRACT:
A link is pivotally connected at one end thereof to one end of a case or main body of a door closer so that the link is turnable between a first position where it is received in the case and a second position where it is put outside the case. A roller is attached to the link, and a cam member is installed within the case. Also installed within the case is an urging spring which causes the cam surface of the cam member to abut against the roller, whereby the link is urged in the direction to be received in the case. The case has no oil enclosed therein. Thus, the construction of the case is simple and inexpensive. When the door is closed, the link is received within the case to improve the external appearance.

REFERENCES:
patent: 3763519 (1973-10-01), Favre
patent: 3947918 (1976-04-01), Favre

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