Invention Grant
US08468656B2 Concealed casement window hinge with roller and integral shipping block 有权
隐形窗扇铰链与滚子和整体运输块

Concealed casement window hinge with roller and integral shipping block
Abstract:
A hinge for a hingedly movable sash in a window having a frame, including a track assembly having a track and a shoe engageable with the track and reciprocally movable along the track. The shoe presents a first rolling member at a first portion thereof and a bearing portion at a second portion. The shoe is shiftable between a window closed configuration in which the bearing portion contacts the track and transmits loads from the track to the sash arm and a window moving configuration in which the rolling member contacts the track and transmits loads from the track to the sash arm and rolls along the track as the shoe translates along the track.
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