Door operator assembly

Abstract

A door operator assembly, comprising an operator unit mounted to a first position, relative to the door, by a first mounting bracket; and an arm linkage connecting the operator unit and a second position, relative to the door; the arm linkage being mounted at the second position by a second mounting bracket.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority on U.S. provisional application No. 60 / 751,623, filed on Apr. 13, 2005. All documents above are herein incorporated by reference.FIELD OF THE INVENTION [0002] The present invention relates to door operators. More specifically, the present invention is concerned with a door operator assembly. BACKGROUND OF THE INVENTION [0003] Low energy door operators as illustrated in FIGS. 1 and 2 are typically used as manual doors. The door opens automatically by an action such as pressing an activation switch. [0004] Installation of a low energy door operator is usually very expensive, since a typical installation requires an installer attaching a header to the frame of the door, which often requires custom mounting work, installing the operator in the header and installing door arms. Then, a licensed electrician is required to provide power to the door operator. The installer then has to return to complete “tune-in”...

AI Technical Summary

Benefits of technology

[0009] Other objects, advantages and features of the present invention will become more apparent upon reading of the following non-restrictive description of specific embodiments thereof, given by way of example only with reference to the accompanying drawings.

Problems solved by technology

Installation of a low energy door operator is usually very expensive, since a typical installation requires an installer attaching a header to the frame of the door, which often requires custom mounting work, installing the operator in the header and installing door arms.

Wind is a common cause of failure for exterior application swing door operators.

The force of the wind on the door can cause the door to rapidly accelerate.

These impact forces cause high stresses on the door operator, door arms, doors, doorframes, and mounting hardware. FIG. 15(a) illustrates a standard door operator mounting above the door, which causes very high stresses on the door arm linkages when the door is fully open and is forced by wind or a user and often causes significant problems since the arms are loaded in bending as well as in tension, causing high stresses on the door operator, causing failure of the operator or requiring the installation of an additional door stop.

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