Travelling vehicle system and travelling method for travelling vehicle
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United States of America Patent
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Dec 5, 2017
Grant Date -
Oct 6, 2016
app pub date -
Mar 17, 2016
filing date -
Mar 31, 2015
priority date (Note) -
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Abstract
A suspension-type travelling vehicle that travels through a gap in an intersection where tracks cross includes intersection rollers attached in front and rear of a travelling wheel along a travelling direction, and in positions different from a position of the travelling wheel along a direction orthogonal to the travelling direction within a horizontal plane. Inter-axial distances between the intersection rollers and the travelling wheel within the horizontal plane are both longer than a width of a gap along the travelling direction. The rail or the travelling vehicle is constructed such that the intersection rollers are supported by the rail in the intersection, and retreat from the rail in places other than the intersection. During passage of the travelling wheel through the gap, the weight of the travelling vehicle is supported by the intersection rollers by making both the front and rear intersection rollers contact the rail.
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