Low load swinging mechanism for a sander
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United States of America Patent
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Aug 11, 2009
Grant Date -
Feb 19, 2009
app pub date -
Aug 14, 2007
filing date -
Aug 14, 2007
priority date (Note) -
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Abstract
The invention relates to a low load swinging mechanism for a sander. The sander includes a roller unit that has a positioning base provided with two sliding rails for contacting with a connecting member of a sliding base. The sliding rail has an arc surface and the connecting member possesses a corner groove recessed with a certain angle, so that the surface of the corner groove is to contact linearly with the arc surface of the sliding rail to reduce a great abrasion resistance as the sliding base is reciprocating on the positioning base, for upgrading grinding precision.
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