Lawn mower blade rotation warning device

Details Lawn mower blade rotation warning device Lawn mower blade rotation warning device

1980-10-10

1981-11-03

Hirsch, Paul J.

Harvesters

Motorized harvester

With selective control of drive means

192 30W, A01D 7520

Patent

active

042978297

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.

REFERENCES:
patent: 2647600 (1953-08-01), Anderson
patent: 2978858 (1961-04-01), Moody
patent: 3756042 (1973-09-01), Heth et al.
patent: 4152881 (1979-05-01), Hoff

Affiliated with

Also associated with

Rating

Lawn mower blade rotation warning device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lawn mower blade rotation warning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lawn mower blade rotation warning device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1058389