# US 8,539,796 B2 · Method for assembling optical connector

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- Number: US 8,539,796 B2
- Document ID: US8539796B2
- Status: Granted
- Kind: B2
- Application number: 13/143,387
- Filed: 2010-10-27
- Published: 2011-11-03
- Granted: 2013-09-24
- Earliest claimed: 2009-10-28
- Assignees: SEI Optifrontier Co., Ltd.; Sumitomo Electric Industries, Ltd.
- Applicants: Yoshikyo Tamekuni; Yuji Suzuki; Yukihiro Yokomachi
- Inventors: Yoshikyo Tamekuni; Yuji Suzuki; Yukihiro Yokomachi
- Web page: https://patentgrep.com/patent/US8539796B2

## CPC

- G02B 6/3846: {with fibre stubs}
- G02B 6/3849: {using mechanical protective elements, e.g. caps, hoods, sealing membranes (G02B6/3816 takes precedence; provisionally see H01R13/44)}
- G02B 6/3821: {with axial spring biasing or loading means (G02B6/3847 takes precedence)}
- G02B 6/3893: {Push-pull type, e.g. snap-in, push-on}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

An optical connector assembling method capable of preventing workability from worsening is provided. First, when assembling the optical connector, an optical cord (2) is passed through a rear housing (8), an outer jacket holding member (9), a securing member (10), and a boot (11), and an outer jacket (4) is removed from a leading end portion of the optical cord (2), so as to expose a coated optical fiber (3) and a tension-resistant fiber (5). A handled dust cap (16A) is mounted to a ferrule member (6) holding a built-in fiber. Then, a fusion splicer fusion-splices the built-in fiber and the coated optical fiber (3) to each other. Thereafter, while the ferrule member (6) keeps the handled dust cap (16A) mounted thereto, a plug housing (7) is assembled to the rear housing (8). Then, the outer jacket holding member (9) and securing member (10) secure the outer jacket (4) and tension-resistant fiber (5) to the rear housing (8), and the boot (11) is mounted to the securing member (10). Finally, a handle (16a) is cut off from the handled dust cap (16A).

## Claims

### Claim 1

A method for assembling an optical connector comprising a ferrule member having a ferrule body holding a built-in fiber, a first housing for accommodating the ferrule member, and a second housing for introducing therein an optical fiber to be connected to the built-in fiber, the method comprising the steps of:
mounting a protection cap to the ferrule body;
fusion-splicing an optical fiber that is introduced in the second housing and the built-in fiber to each other; and
inserting the protection cap mounted with the ferrule body into the first housing, so as to assemble the first and second housings to each other,
wherein the protection cap has a handle provided at an end thereof;
the method further comprising the step of cutting the handle off after performing the step of assembling the first and second housings to each other.