Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 24, 2017
Patent Application Number
14902718
Date Filed
August 13, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
A first ring section and a second ring section made of resin are integrally formed in both ends in the direction of a center axis of a rod section. A plurality of first ribs, intermediate ribs, and second ribs are provided in an outer circumferential surface of the second ring section so as to project in the direction intersecting at right angles to a center axis of the second ring section. The first ribs and the intermediate ribs, and the second ribs each are integrally connected on either side in the left and right direction to vertical ribs that are formed long in the direction of the center axis. Projecting heights of the vertical ribs and the second ribs are varied along inclined straight lines.
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