Hydraulic door closer

A new type of hydraulic door closer is disclosed. The device of the present invention utilizes spring force and hydraulic pressure, and is equipped with a straightly extending arm instead of the conventional type of the folding arms. The advantages of the device of the present invention are that var...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	LEE, WAN S, YOO, JAE Y, NAM, SUN O
Format:	Patent
Sprache:	eng
Schlagworte:	CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION FIXED CONSTRUCTIONS KEYS LOCKS SAFES WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A new type of hydraulic door closer is disclosed. The device of the present invention utilizes spring force and hydraulic pressure, and is equipped with a straightly extending arm instead of the conventional type of the folding arms. The advantages of the device of the present invention are that variations of the size of the device are not required for different sizes and weights of doors, and the lack of the folding portion of the arm enables avoiding of wear and stress on the critical parts. Another advantage of the device of the present invention is that different door opening ranges are provided such as 80 degrees, 90 degrees and 100 degrees in addition to a free moving zone.