| 摘要 |
An insulated sectional overhead garage door comprising a plurality of pivotally connected door panels, each having an interior cavity filled with insulating material. Weather stripping is provided between adjacent door panels to prevent heat loss. One feature of the invention pertains to the quick mounting of the rollers to the panels by means of a pair of bushings and a spacer retainer. Another feature pertains to the movable vertical track for retaining the door in the closed position. The track is movable downwardly and toward the door jamb in response to movement of the door to its lowermost position. The upper end of the door is retained in a track having adjustment means for selectively adjusting the distance between the door header and the upper end of the door. The vertical track is movably mounted on an L-shaped frame member constructed of heat insulating material which is securely mounted to the door jamb.
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