Clutch unit and camera
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 2001
Grant Date -
N/A
app pub date -
Jun 23, 1999
filing date -
Jun 25, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A clutch unit according to the present invention includes a driving sleeve fixed to a driving shaft and a driven sleeve fixed to a driven shaft. A coil-like clutch spring is received on the driven sleeve, and a clutch sleeve is received on the driving sleeve. When the driving shaft is rotated normally or reversely, the driving sleeve abuts one of the arm portions of the clutch spring. Consequently, the clutch spring engages the driven sleeve. Torque producing rotation in either direction is transmitted to the driven shaft. The clutch unit also can operate as an overrunning clutch. When the clutch unit is adapted to a film feeding and driving system in a camera, the clutch unit can be positioned to utilize what had been dead spaces in a camera body, thus promoting compact camera design.
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