Configuration and bearing for a motor-driven linear actuator
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United States of America Patent
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-
Nov 12, 1985
Grant Date -
N/A
app pub date -
Mar 22, 1984
filing date -
Mar 30, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A simple, inexpensive, and effective linear actuator design comprises a motor adjacent to a speed-reducer, with the driven stem of the speed-reducer passing through the rotor of the motor. The stem has one bearing at one end of the reducer and its second bearing at the end of the motor, in a bearing part likewise serving as a bearing for the rotor. The distance between the two bearings is increased, and the second bearing includes a socket which has a radial elasticity owing to the fact that it is monolithically joined to the fixed bearing part via a thin portion. This second bearing part is advantageously of synthetic material. The rotation of the stem actuates a driven linear-motion part, which is prevented from rotating and which executes a translatory movement.
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