Power transmission belt and method of producing the same
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United States of America Patent
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May 28, 2013
Grant Date -
Jul 26, 2012
app pub date -
Aug 28, 2009
filing date -
Aug 28, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A power transmission belt low in cost and preventing work precision from being lowered and life expectancy of a metal press working mold from being decreased and a method of producing such a power transmission belt are provided. The power transmission belt includes endless band-like rings, and a plurality of elements bonded into an annular shape by the endless band-like rings. Each of the elements has both side end surface portions pressed between pulleys in the belt width direction, a rocking edge portion serving as a fulcrum when rocked in the state that the elements are partly wound around the pulleys, and a concave-convex portion engageable in concave-convex engagement with the concave-convex portions of a pair of neighboring elements. Each of the elements is formed with a curved inclination surface between the rocking edge portion and the concave-convex portion to have an inclination angle reduced toward the concave-convex portion.
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