US 12,422,638 B2
Optical wiring unit and optical termination box
Hiroyuki Takamizawa, Sakura (JP); Toshiaki Nakajima, Sakura (JP); and Hiroyoshi Shibata, Sakura (JP)
Assigned to Fujikura Ltd., Tokyo (JP)
Appl. No. 18/023,924
Filed by Fujikura Ltd., Tokyo (JP)
PCT Filed May 6, 2021, PCT No. PCT/JP2021/017394
§ 371(c)(1), (2) Date Feb. 28, 2023,
PCT Pub. No. WO2022/091462, PCT Pub. Date May 5, 2022.
Claims priority of application No. 2020-180584 (JP), filed on Oct. 28, 2020.
Prior Publication US 2023/0324639 A1, Oct. 12, 2023
Int. Cl. G02B 6/00 (2006.01); G02B 6/44 (2006.01)
CPC G02B 6/44526 (2023.05) [G02B 6/44528 (2023.05); G02B 6/4455 (2013.01); G02B 6/44785 (2023.05)] 6 Claims
OG exemplary drawing
 
1. An optical wiring unit comprising:
a tray that comprises a bottom plate; and
a lid body that comprises a top plate facing the bottom plate in an up-down direction, wherein
an accommodating space that accommodates an optical fiber is formed between the bottom plate and the top plate,
one of the tray and the lid body comprises:
an outer wall portion; and
an inner wall portion inside the accommodating space with respect to the outer wall portion,
the other of the tray and the lid body comprises an intermediate wall portion inserted between the outer wall portion and the inner wall portion,
the inner wall portion has a dimension in the up-down direction smaller than that of the outer wall portion,
the tray further comprises a tray-side fiber restricting portion that protrudes into the accommodating space from the bottom plate,
the lid body further comprises a lid-side fiber restricting portion that protrudes into the accommodating space from the top plate, and
one of the tray-side fiber restricting portion and the lid-side fiber restricting portion is inserted into the other of the tray-side fiber restricting portion and the lid-side fiber restricting portion.