Patent ID: 8220202
Filing Date: 2012-07-17
Classification: E05D,E05Y,Y10T

Abstract:
1. A door position sensing arrangement, comprising: a door hinge including a fixed part and a rotatable part, the fixed part being attached to a door frame, the rotatable part being attached to a door, the fixed part and the rotatable part conjunctively defining a first through-channel; a switch including a fixed portion and a rotatable portion rotatably coupled to the fixed portion, the fixed portion having a first electrical contact and the rotatable portion having a second electrical contact, the fixed portion being biased against at least one of the fixed part of the door hinge and the door frame, the rotatable portion being biased against at least one of the rotatable part of the door hinge and the door, the fixed portion and the rotatable portion conjunctively defining a second through-channel aligned with the first through-channel, the fixed portion and the rotatable portion having a first position relative to each other wherein the contacts are electrically connected to each other, and a second position relative to each other wherein the contacts are electrically disconnected from each other, each of the fixed portion and the rotatable portion of the switch having a respective arm extending laterally therefrom, the switch further including a coil spring with two opposite ends, each said end engaging a respective one of the two arms, the arm of the fixed portion being biased by the spring against at least one of the fixed part of the door hinge and the door frame, the arm of the rotatable portion being biased by the spring against at least one of the rotatable part of the door hinge and the door; and a hinge pin extending at least partially through the second through-channel of the switch and at least partially through the first through-channel of the hinge, the coil spring being coiled around the hinge pin.