Anti-backlash screw and nut assembly
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United States of America Patent
Stats
-
N/A
Issued Date -
May 22, 2003
app pub date -
Aug 15, 2002
filing date -
Nov 20, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Disclosed is an anti-backlash screw and nut assembly adapted for converting rotational motion into linear motion. The assembly comprises a screw rotated by a motor; first and second nut blocks threadedly coupled with the screw to be linearly moved, the second nut block being formed on an upper surface thereof with an insertion pin; a pair of springs for connecting and applying compression or tensile force to the first and second nut blocks in a manner such that flanks of threads of the screw and the nut blocks can be brought into contact with each other while not causing backlash; and a plate member secured to an upper surface of the first nut block by fastening bolts and defined with a slot in which the insertion pin of the second nut block is inserted to be moved therealong.
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