Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Manabu Hidaka0
Yasuhiro Kuji0
Shouji Ozawa0
Seiji Itoo0
Hisashi Takeuchi0
Kaoru Oda0
Ryosuke Fujino0
Date of Patent
April 11, 2023
0Patent Application Number
167252980
Date Filed
December 23, 2019
0Patent Citations
Patent Citations Received
Patent Primary Examiner
CPC Code
A spider is screwed to a drive shaft, includes a first screw that advances in one direction of an axial direction of the drive shaft when the spider rotates relative to the drive shaft in one direction of a circumferential direction, and is fastened to the drive shaft by the first screw. A nut is screwed to the drive shaft, includes a second screw that advances in the other direction of the axial direction of the drive shaft when the nut rotates relative to the drive shaft in one direction of the circumferential direction, and is fastened to the drive shaft by the second screw.
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