Patent ID: 6539670
Filing Date: 2003-04-01
Classification: E05D,E05F,E05Y

Abstract:
A manual release mechanism for a power operated door having a hinge assembly attached to the door which is pulled along a track in one direction by an elongated flexible member to open the door and pulled in an opposite direction along the track by the elongated flexible member to close the door, the mechanism comprising:the hinge assembly having a passage extending through the assembly in a generally horizontal direction; a spring loaded pin mounted on the hinge assembly so as to protrude into the passage in a rest position; an operator attached to the spring loaded pin to retract the spring loaded pin to a disengaged position where the spring loaded pin does not protrude into the passage; and a bullet assembly attached to the elongated flexible member, the bullet assembly having a space, a forward portion being generally bullet shaped and a rearward portion being generally bullet shaped, the forward and rearward bullet portions being oriented back-to-back, the forward bullet portion having a forward nose, the rearward bullet portion having a rearward nose, the forward and rearward noses pointing away from each other in opposite directions, the space disposed axially between the forward and rearward noses, the pin projecting into the space when the spring loaded pin is in the rest position and the bullet assembly is disposed in the passage of the hinge assembly, and a pin engagement device supported by the hinge assembly, the pin engagement device having the pin, the spring, a pivot arm, a stationary surface and a moving surface, the pivot arm having a pivot end engaged pivotally to the hinge assembly and a distal end engaged rigidly to the pin, the pin disposed generally transversely to the arm, the moving surface disposed on the pivot arm near the distal end and facing away from the pin, the stationary surface facing the moving surface and defined by the hinge assembly, the spring disposed compressibly between the stationary and moving surfaces so that the spring is compressed when the pin is in the disengaged position.