US 11,921,336 B2
Reticulated tube, optical fiber protective unit, method for protecting optical fiber, and method for manufacturing reticulated tube
Go Taki, Chiba (JP); Masayuki Ishioka, Chiba (JP); Mizuki Isaji, Chiba (JP); Tomoaki Kaji, Chiba (JP); Soichiro Kaneko, Chiba (JP); Koji Tomikawa, Chiba (JP); Akira Namazue, Chiba (JP); and Ken Osato, Chiba (JP)
Assigned to Fujikura Ltd., Tokyo (JP)
Filed by FUJIKURA LTD., Tokyo (JP)
Filed on Nov. 8, 2022, as Appl. No. 17/982,661.
Application 17/982,661 is a continuation of application No. 17/282,626, granted, now 11,525,972, previously published as PCT/JP2019/036612, filed on Sep. 18, 2019.
Claims priority of application No. 2018-189278 (JP), filed on Oct. 4, 2018.
Prior Publication US 2023/0053868 A1, Feb. 23, 2023
Int. Cl. G02B 6/44 (2006.01)
CPC G02B 6/443 (2013.01) [G02B 6/4486 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical fiber protective unit comprising:
a reticulated tube; and
a tubular member that is inserted through the reticulated tube and that is configured to accommodate a plurality of optical fibers, wherein
the reticulated tube is disposed on an outer periphery of the tubular member in a state folded in a longitudinal direction,
both end parts of the reticulated tube are located on the outer periphery of the tubular member, and
the reticulated tube in an extended state is longer than the tubular member.