HOLLOW TRACK BODY AND ACTUATOR
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United States of America Patent
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Oct 27, 2016
app pub date -
Dec 4, 2014
filing date -
Dec 24, 2013
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Abstract
A hollow track body (21) has a plurality of rolling body traveling sections (22) formed in an outer surface of a hollow shaft in an axial direction and is supported by a support body (31) via a plurality of rolling bodies (40) that are rollable along the plurality of rolling body traveling sections (22), wherein a rack teeth array (25) in which roots of teeth penetrate into a hollow section (21h) of the hollow shaft are formed at arc-shaped sections (21a, 21b) formed between the plurality of rolling body traveling sections (22) in the axial direction.
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