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US 5,135,040 AGranted
Door assembly with a flexible door panel
AssigneePolynorm N.V.
InventorMarc A. Ruiter
Life of this patent
Estimating the term…
Abstract
Described herein is a door assembly that includes a flexible panel of flexible plate material which is guided in channels between a closed position to an opened position; the flexible panel assuming a substantially horizontal position in the open position and thereby increases the height clearance in the door opening.
Claims8
A door assembly comprising:
- a frame and a flexible panel which is movable relative to said frame between a closed position and an opened position;
- said frame comprising at each of both sides of the flexible panel vertical guide means defining a door opening therebetween;
- horizontal guide means connected to the top end of said vertical guide means;
- bend guide means arranged between said vertical guide means and said horizontal guide means;
- said vertical guide means, horizontal guide means and bend guide means engaging side edges of said flexible panel;
- said horizontal guide means comprising an S-shaped profiled member defining a first channel facing the flexible panel and receiving a side edge thereof, and further defining a second channel and a draw spring for balancing the weight of the flexible panel;
- said draw spring being disposed within said second channel of said profiled member, and being connected at one end to said frame and at its other end to a movable pulley, said movable pulley engaging a flexible draw member and said flexible member extending from the end connected to said frame over said movable pulley and over a stationary pulley mounted for rotation on said frame to a connection member connected to said flexible panel.
4 more elements
A door assembly comprising:
- a frame and a flexible panel comprising a plurality of plates of flexible material which is movable relative to said frame between a closed position and an opened position, said frame comprising at each of both sides of the flexible panel vertical guide means defining a door opening therebetween, horizontal guide means connected to the top end of said vertical guide means;
- bend guide means arranged between said vertical guide means and said horizontal guide means, sliding means connected to both side edges of said flexible panel, said vertical guide means, horizontal guide means and bend guide means engaging said sliding means connected to said side edges of said flexible panel,
- said bend guide means comprising a guide wheel which is rotatably mounted on a shaft connected to said frame and a pivoting guide element mounted for pivoting movement on the frame and engaging the outer surface of a flexible panel edge engaging said guide wheel with its inner surface;
- said guide wheel being made of synthetic resin and comprising a hub, a round ring having a smooth peripheral outer surface and a plurality of spokes connecting said ring with said hub.
1 more element
Dependencies are inferred from the claim text.