Patent ID: 8661621
Filing Date: 2014-03-04
Classification: E05D,E05Y,Y10T

Abstract:
1. A casement window hinge comprising: a longitudinally extending track attachable to a window opening; a slide retainable by the track for movement therealong; a sash arm pivotally attached to the slide at an inner end and attachable to a window sash; a guide arm pivotally attached at one end to the track and at the other end to the sash arm; the sash arm and the guide arm are constructed of a moldable thermoplastic material and are joined by a screw passing through a sash arm hole and a guide arm hole to extend into the sash, the sash arm hole and the guide arm hole are coaxial; the sash arm includes an integral collar extending coaxially with the sash arm hole toward the guide arm and extending into the guide arm hole to provide a bearing surface between the sash arm and guide arm separating the screw from the guide arm; the collar of the sash arm when inserted in the guide arm hole extends into a counter bore for receiving a head of the screw in the guide arm and wherein an end of the collar exposed in the counter bore is staked over a bottom of the counter bore to retain an engagement between the sash arm and the guide arm and to prevent the screw from contacting the guide arm.