Power supplying system for self-driving closure device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 10, 1990
Grant Date -
N/A
app pub date -
Jul 31, 1989
filing date -
Jul 31, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power supplying system for supplying power to a self-driving closure device in which a driving source for driving the closure device for opening and closing an opening moves together with the closure device includes a lead wire having one end connected to a power source and the other end connected to the driving source. The side of the lead wire connected to the power source is supported at a midpoint between the positions of the upper and lower limits of movement of the driving source, while the side of the lead wire connected to the driving source is supported in such a manner as to move together with the driving source. The lead wire is thus made to swing in conjunction with the movement of the driving source so as to supply power to the moving driving source. A guide shaft is provided along the direction of movement of the driving source, and a helical portion formed in the lead wire is extended or shrunk along the guide shaft so as to supply power to the moving driving source.
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