Motor-drive/manual folding door
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 28, 2003
Grant Date -
N/A
app pub date -
Oct 12, 2001
filing date -
Apr 14, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A combined electric/manual folding door 100 of the invention comprises: a small door (60) having a pivot on one side edge, and a large door 50 foldably connected to the small door 60 via a hinge 9. The width of the small door 60 to the large door 50 is set at 1:2. A guide roller 8 is attached to an upper face central portion of the large door 50. The guide roller 8 can move freely inside a suspension rail 7 arranged parallel with the upper side of the doors 50, 60. An electric drive section 3 drives the large door 50 via a rotation rod 5. The electric drive section 3 also drives when a load is detected applied to door pulls 21, 22 for manual opening and closing, to thereby assist the manual opening and closing.
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