Patent ID: 7181805
Filing Date: 2007-02-27
Classification: E05D,E05Y,Y10T

Abstract:
1. A window hinge for pivotally connecting a window having a window sash to a window frame, said window hinge comprising: an elongated track defining a track longitudinal axis; said track having an elongated sash arm attachable to said window sash, said sash arm defining a sash arm longitudinal axis, a sash arm first end and a longitudinally opposed sash arm second end; a sash arm attachment means for attaching said sash arm to said window sash; a carriage component, said carriage component being pivotally attached to said sash arm adiacent said sash arm first end, said carriage component being also mounted on said base wall second surface in a carriage operational configuration for slidable movement along said track longitudinal axis between an open window position and a closed window position while being guided by said track flange and retained by said flange retaining section; a support arm for pivotally linking said sash arm and said track, said support arm defining a support arm first end and a longitudinally opposed support arm second end, said support arm adiacent said support arm first end being pivotally attached to said sash arm intermediate said sash arm first and second ends and said support arm adiacent said support arm second end being pivotally attached to said track base wall adiacent said base wall first end; a securing means other then said flange retaining section extending between said track base wall and said carriage component for maintaining said carriage component in said carriage operational configuration; whereby said securing means prevents said carriage component from being separated from said flange retaining section when pressure is exerted on said window; securing means including a securing recess formed in said carriage first main surface, said securing recess allowing said carriage component to slide between said open and closed window positions; and a securing protrusion protruding from said base wall second surface, said securing protrusion being configured, sized and positioned so as to be inserted in said securing recess when said carriage component is in said closed window position and so as to cooperate with said securing recess for maintaining said carriage component in said operational configuration; whereby said securing protrusion is adapted to abuttingly contact an inner surface of said securing recess for preventing said carriage component from being separated from said track when pressure is exerted on said window.