SPRING BRAKE
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United States of America Patent
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N/A
Issued Date -
Apr 11, 2013
app pub date -
May 25, 2012
filing date -
Oct 9, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A spring brake includes a base, on which a first reel and a second reel are pivoted. A mainspring has opposite ends connected to the first reel and the second reel. A stop device has a pressing portion to press the mainspring when the mainspring is wound on the second reel. Therefore, the pressing portion of the stop device will touch the mainspring when the mainspring is wound on the second reel and give the mainspring a resistance to offset the recovery force of the mainspring.
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