Machine element or mechanism – Mechanical movements – Oscillating to oscillating
Patent
1984-02-22
1986-08-12
Makay, Albert J.
Machine element or mechanism
Mechanical movements
Oscillating to oscillating
74 97, 74581, F16H 2144, F16H 2154, F16H 2518
Patent
active
046049100
ABSTRACT:
An object mounting member is slideably interconnected with a guide member which provides a path between two separated fixed locations. The guide member is attached to a support member having fixed stops located between the two fixed locations. A pinion gear is fixedly attached to the shaft of a stepper motor, and a spur gear is held in an engaging relationship with said pinion gear. An eccentric arm is pivotally attached at one end to the spur gear and is driven to provide rapid motion between the two fixed locations with a rate of motion approaching zero hit nears each fixed location. The other end of the eccentric arm is pivotally attached to one end of a drive arm that is pivotally attached to the object mounting member. The drive arm includes a spring loaded member that is used to allow the object mounting member to be preloaded against a stop at each end of its travel.
REFERENCES:
patent: 2821091 (1958-01-01), Benner
patent: 3153802 (1964-10-01), Howard
patent: 4221533 (1980-09-01), Heim et al.
patent: 4483654 (1984-11-01), Koch et al.
Chadwick Curt H.
Desai Anil A.
Hamrick Claude A. S.
KLA Instruments Corporation
Makay Albert J.
Westphal David W.
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