US 11,789,213 B2
End face polishing device for optical fiber ferrule
Atsushi Yamada, Matsudo (JP); and Yuji Shibutani, Matsudo (JP)
Assigned to SEIKOH GIKEN Co., Ltd., Matsudo (JP)
Filed by SEIKOH GIKEN Co., Ltd., Matsudo (JP)
Filed on Sep. 8, 2022, as Appl. No. 17/939,962.
Application 17/939,962 is a continuation of application No. 16/305,059, granted, now 11,474,305, previously published as PCT/JP2018/003678, filed on Feb. 2, 2018.
Claims priority of application No. 2017-018797 (JP), filed on Feb. 3, 2017.
Prior Publication US 2023/0039931 A1, Feb. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 6/38 (2006.01); B24B 19/22 (2006.01); B24B 41/06 (2012.01); B24B 47/12 (2006.01)
CPC G02B 6/3863 (2013.01) [B24B 19/226 (2013.01); B24B 41/06 (2013.01); B24B 47/12 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An end face polishing device for optical fiber ferrule for polishing an end face of an optical fiber ferrule by applying a polishing pressure between a polishing plate driven by a polishing drive shaft and an optical fiber ferrule held by a holding portion, the end face polishing device for optical fiber ferrule comprising:
a bearing portion for allowing the polishing plate to rotate relatively around the polishing drive shaft and to move relatively to the polishing drive shaft in an axial direction;
a polishing plate guide supporting portion movable only in an axial movement direction of the polishing plate for movably supporting the polishing plate on a base portion to apply the polishing pressure to the holding portion by allowing the polishing plate to move in the axial direction;
a pressing drive source for outputting a driving force to apply the polishing pressure; and
a pressing force transmission mechanism for transmitting the driving force output from the pressing drive source as a pressing force in the axial movement direction of the polishing plate.