Flexible boot for constant velocity universal joint
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United States of America Patent
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Apr 7, 2009
Grant Date -
Mar 30, 2006
app pub date -
Sep 28, 2005
filing date -
Sep 30, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A flexible boot for a constant velocity universal joint (CVJ) includes a smaller-diameter mounting portion provided at one end, a larger-diameter mounting portion provided at the other end, and a bellows portion provided between both of the mounting portions. The larger-diameter mounting portion and the bellows portion are connected to each other by a straight portion, and the smaller-diameter mounting portion and the bellows portion are connected to each other by a straight portion. An axial distance of each of the straight portions is equal to or larger than 20% of an entire axial distance from a boundary between the larger-diameter mounting portion and the adjacent straight portion to a boundary between the smaller-diameter mounting portion and the adjacent straight portion, and an axial distance of the bellows portion is in a range of 20% to 60% of the entire axial distance, so that the bellows portion is located substantially centrally in an axial direction between both of the straight portions.
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