Belt-type continuous stepless speed changer
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United States of America Patent
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Apr 23, 2013
Grant Date -
Apr 22, 2010
app pub date -
Dec 22, 2009
filing date -
Feb 28, 2003
priority date (Note) -
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Abstract
A belt-type continuously variable transmission includes a primary sheave including a pair of first clamp surfaces, a secondary sheave including a pair of second clamp surfaces, and a belt endlessly wound between both of the primary and secondary sheaves. The belt includes contact surfaces clamped between the first clamp surfaces and between the second clamp surfaces. Powder having infusibility as a friction enhancing material is held on at least one of the first clamp surfaces of the primary sheave, the second clamp surfaces of the secondary sheave, and the contact surfaces of the belt.
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