Patent ID: 6336294
Filing Date: 2002-01-08
Classification: E05D,E05F,E05Y

Abstract:
A swing door operator for controlling pivoting movements of a door panel that is to be pivoted about a generally vertical door panel axis from a closed position in a power driven door opening direction and from the closed position in a manually driven breakout door opening direction opposite the power driven door opening direction, said swing door operator comprising:an operator output member rotatable about an output member axis, said operator output member being constructed and arranged to be operatively connected with the door panel such that rotation of said output member about said output member axis pivots the door panel about the door panel axis thereof; a motor operatively connected to said operator output member, said motor being constructed and arranged to rotate said output member about said output member axis in a first rotational direction to enable said operator output member to pivot the door panel in the power driven door opening direction from the closed position thereof when said output member is operatively connected to the door panel; a driving member connected to said output member such that applying force to said driving member rotates said output member about said output member axis, said driver member comprising an offset member spaced radially from said output member axis such that (a) said offset member moves generally circumferentially with respect to said output member axis in a first circumferential direction as said output member rotates about said output member axis in said first rotational direction and (b) said offset member moves generally circumferentially with respect to said output member axis in a second circumferential direction opposite said first circumferential direction as said output member rotates about said output member axis in a second rotational direction opposite said first rotational direction; a door return compression spring structure positioned in force applying relation with respect to said offset member such that operation of said motor to rotate said output member in said first rotational direction thereof and pivot the door panel when operatively connected thereto in the power driven door opening direction moves said offset member in said first circumferential direction thereof so as to stress said compression spring structure, said compression spring structure being constructed and arranged to thereafter apply a first spring return force to said offset member that tends to move said offset member in said second circumferential direction thereof so as to rotate said output member in the second rotational direction thereof and pivot the door panel when operatively connected thereto opposite the power driven door opening direction towards and into the closed position; said door return compression spring structure being positioned in said force applying relation with respect to said offset member such that, when said operator output member is operatively connected to the door panel, manual pivoting movement of the door panel from the closed position thereof in the manually driven breakout door opening direction thereof rotates said output member in said second rotational direction thereof and moves said offset member in said second circumferential direction thereof so as to stress said compression spring structure, said compression spring structure being constructed and arranged to thereafter apply a second spring return force to said offset member that tends to rotate said output member in said first rotational direction thereof and pivot the door panel when operatively connected thereto opposite the breakout door opening direction towards and into the closed position.