Lawn mower blade rotation warning device
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United States of America Patent
Stats
-
Nov 3, 1981
Issued Date -
N/A
app pub date -
Oct 10, 1980
filing date -
May 5, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A warning device for a lawn mower having a rotary blade driven from a motor through a centrifugal clutch and normally held stopped by a brake which is released by a deadman control. The warning device comprises a flexible clicker post such as a close-wound helical spring carried by the clutch driver and having a weighted clicker head at its free end which normally stands in the path of a blade-mounting nut or other striker on the clutch-driven part so that the clicker head on the post will be repeatedly struck by the nut or other striker in the event the clutch driver element is stopped while the brake is disengaged and allows the blade to rotate under its own momentum. When the clutch driver is rotating at normal driving speed, centrifugal force bends the flexible arm to carry the clicker head out of striking relation with the striker element on the driven clutch part.
First Claim
Family
International Classification(s)
Cited Art Landscape
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