DRIVE DEVICE FOR A PROTECTIVE HOOD AND METHOD FOR ADJUSTING A PROTECTIVE HOOD
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United States of America Patent
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Issued Date -
Feb 2, 2023
app pub date -
Nov 5, 2020
filing date -
Nov 5, 2020
priority date (Note) -
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Abstract
A drive device for a protective hood of a machine includes a counterweight, a pulling means connecting the protective hood to the counterweight, a motor, and a freewheel. The freewheel connects the motor to the pulling means and is arranged to block when a weight force of the protective hood is greater than a weight force of the counterweight. The freewheel may be a linear freewheel or the freewheel may operate between two rotatable elements. The freewheel may be a frictionally locking freewheel or a positive locking freewheel.
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