Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1987-06-19
1989-12-19
Luong, Vinh
Machine element or mechanism
Control lever and linkage systems
Elements
74527, G05G 104
Patent
active
048874833
ABSTRACT:
A speed sensitive safety lock is provided for arresting and holding a control member when it is moved above a predetermined speed along a control path in one plane in close proximity to a stationary surface. The safety lock comprises a mounting portion for mounting the safety lock to either the stationary surface of the control member, and an arresting member pivotably supported on the mounting portion having a contact surface on one end for making a glancing contact with a part on the control member or the stationary surface as the control member is moved along the control path, and an arresting portion on another end which is movable so as to arrest the control member from further movement when the glancing contact is made at a speed in excess of a predetermined level. The preferred form of the lock has a single moving part and can be readily retrofitted to existing devices.
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Chong Leighton K.
Luong Vinh
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