FEMALE THREADED BODY, AND THREADED BODY FASTENING STRUCTURE
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United States of America Patent
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app pub date -
Dec 10, 2015
filing date -
Dec 10, 2014
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Abstract
A female threaded body (100) is provided with: a female threaded helical structure (114) formed on the inner circumferential surface of a hole (106a) in a cylindrical member (106); a contact surface (110a) formed on an axial direction end face of said cylindrical member (106); and a reverse rotation-preventing member (160), which has a protruding section (168) that is disposed and fixed on said contact surface (110a) and protrudes radially inward toward the rotation axis and in which the tip of said protruding section (168) configures an engaging edge (168a) that forms a continuous or discontinuous helix of a different lead angle and/or lead direction from the lead angle and/or lead direction of the female threaded helical structure (114). The engaging edge (168a) may allow a relative rotation of a male thread body (10) and the female threaded helical structure (114) in one direction.
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