Automatic sliding door
First Claim
1. An automatic sliding door comprising:
- at least one door panel;
main drive means for driving said door panel to an open position and a closed position;
clutch means between said main drive means and said panel for disconnecting said panel from said main drive means to open said door in event of a power failure;
auxiliary drive means connected to said door panel and storing energy received when said door panel is in said closed position for driving said door panel to said open position when said clutch means disconnects said main drive means from said panel in event of power failure;
said auxiliary drive means having a rubber cable actuated always with said door so that said auxiliary drive means can be tested with every movement of said door panel.
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Accused Products
Abstract
An automatic sliding door in which a main drive moves at least one door panel to open and closed positions. An electromagnetic clutch is located between the main drive and the door panel for the purpose of disconnecting the panel from the drive and to open the door in event of a power failure. An auxiliary drive is connected to the door panel and stores energy received when the door panel is in a closed position, so as to drive the door to the open position when the clutch disconnects the main drive from the door panel in event of power failure. The auxiliary drive has a rubber cable actuated always with the door so that the auxiliary drive can be tested with every movement of the door panel.
51 Citations
6 Claims
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1. An automatic sliding door comprising:
- at least one door panel;
main drive means for driving said door panel to an open position and a closed position;
clutch means between said main drive means and said panel for disconnecting said panel from said main drive means to open said door in event of a power failure;
auxiliary drive means connected to said door panel and storing energy received when said door panel is in said closed position for driving said door panel to said open position when said clutch means disconnects said main drive means from said panel in event of power failure;
said auxiliary drive means having a rubber cable actuated always with said door so that said auxiliary drive means can be tested with every movement of said door panel. - View Dependent Claims (2, 3, 4, 5)
- at least one door panel;
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6. An automatic sliding door comprising:
- at least one door panel;
main drive means for driving said door panel to an open position and a closed position;
clutch means between said main drive means and said panel for disconnecting said panel from said main drive means to open said door in event of a power failure;
auxiliary drive means connected to said door panel and storing energy received when said door panel is in said closed position for driving said door panel to said open position when said clutch means disconnects said main drive means from said panel in event of power failure;
said auxiliary drive means having a rubber cable actuated always with said door so that said auxiliary drive means can be tested with every movement of said door panel;
said clutch means being an electromagnetic clutch;
supporting springer means for supporting said auxiliary drive means, said rubber cable being connected to said springer means and to said door panel;
a deflection roller, said rubber cable traveling about said deflection roller;
said auxiliary drive means comprising a motor with transmission means, a cogwheel on said motor, a cogged belt driven by said cogwheel and secured to said door panel and traveling around a deflection disc at an end opposite said motor, a carriage on said door panel and having a point attached to said rubber cable, said rubber cable extending around said deflection roller and toward a point above said door panel and said carriage to an attachment on said springer means, said cogwheel being connected to said transmission means through said clutch means.
- at least one door panel;
Specification