Safety control device

Details Safety control device Safety control device

1990-04-09

1992-03-17

Moore, Richard E.

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

A01D 7520

Patent

active

050957694

ABSTRACT:
The invention relates to a safety control device for operator-presence controls, particularly for lawnmowers.
The device disclosed comprises a movable control lever (20) linked to a deadman handle (28) by a pin (36) which is movable relative to a guide slot (44). The guide slot (44) has one or more recesses (46,48) which receive the pin (36) to prevent movement along the slot.
When the pin (36) is in recess (46), the control lever (20) is locked into an inoperative position. Conversely, when the pin (36) is in recess (48) the control lever (20) is locked into an operative position. The control lever (20) and the deadman handle (28) are biased to assume respective inoperative positions when released.

REFERENCES:
patent: 4573307 (1986-03-01), Wick

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