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公开(公告)号：US11789213B2
公开(公告)日：2023-10-17
申请号：US17939962
申请日：2022-09-08
发明人： Atsushi Yamada , Yuji Shibutani
CPC分类号： G02B6/3863 , B24B19/226 , B24B41/06 , B24B47/12
摘要： 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 has: 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 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.
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公开(公告)号：US11571784B2
公开(公告)日：2023-02-07
申请号：US16699734
申请日：2019-12-02
发明人： Yuji Shibutani
摘要： In an optical fiber ferrule polishing holder 20 used for polishing an optical fiber ferrule 30 having a rectangular cross section, the optical fiber ferrule polishing holder 20 having: a body part 21 having an insertion hole 21A into which the optical fiber ferrule 30 can be inserted, the body part 21 being capable of abutting on the optical fiber ferrule 30 at a support wall 21A1 of the insertion hole 21A; and a fixing part 25 (29) having a pressing wall 25B (29B) for pressing the optical fiber ferrule 30 to the support wall 21A1 at a predetermined pressure, wherein the support wall 21A1 is inclined at a predetermined angle with respect to a vertical axis which is vertically extended from a polishing surface 13 of an optical fiber ferrule polishing machine 10, and the support wall 21A1 has a protrusion 21C toward the pressing wall 25B (29B).
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公开(公告)号：US12070835B2
公开(公告)日：2024-08-27
申请号：US17842786
申请日：2022-06-17
发明人： Yuji Shibutani
CPC分类号： B24B41/067 , B24B19/226 , B24B27/0023 , B24B37/27 , G02B6/36 , B24B37/34 , G02B6/3863 , G02B6/3866
摘要： Provided is an optical fiber ferrule polishing jig capable of fixing an optical fiber ferrule and releasing the optical fiber ferrule. An optical fiber ferrule polishing jig 10A has; a base 12a having insertion holes 20 into which optical fiber ferrules 51 can be detachably inserted; pivoting rods 13 which are adjacent to the insertion holes 20 of the base 12a and rotatable around lower end portions 36; fixing pieces 14a installed in installation recesses 19a formed in the base 12a to fix the optical fiber ferrules 51 with respect to the insertion holes 20 by being moved as the rods are pivoted; and a plurality of coil springs 15a installed in the installation recesses 19a to bias the fixing pieces 14a so as to release fixing of the optical fiber ferrules 51 with respect to the insertion holes 20.
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公开(公告)号：US11474305B2
公开(公告)日：2022-10-18
申请号：US16305059
申请日：2018-02-02
发明人： Atsushi Yamada , Yuji Shibutani
摘要： The present invention provides an end face polishing device capable of improving a polishing accuracy by polishing an end face of an optical fiber ferrule with adjusted polishing pressure. An end face polishing device 1 for optical fiber ferrule for polishing an end face of an optical fiber ferrule by applying a polishing pressure between a polishing plate 5 driven by a polishing drive shaft and an optical fiber ferrule held by a holding portion 9. The end face polishing device for optical fiber ferrule has: a bearing portion for allowing the polishing plate 5 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 31 for movably supporting the polishing plate 5 on a base portion 3 to apply the polishing pressure to the holding portion 9 by allowing the polishing plate 5 to move in the axial direction; a pressing drive source 15 for adjustably outputting a driving force to apply the polishing pressure; and a pressing force transmission mechanism 21 for transmitting the driving force output from the pressing drive source 15 as a pressing force in the axial movement direction of the polishing plate 5.
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