Patent EP0156397A2 successfully refreshed from Google Patents.
EP0156397A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Optical fiber connector
Assignee: NEC Corp
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Filing: 1985-03-29
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Granted: —
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Expires: 2005-03-29
Abstract
Abstract The invention relates to an optical fiber connector for connecting an optical fiber plug (14') and an adaptor for receiving the optical fiber plug. The optical fiber plug (14') comprises a ferrule (8) for fixing an optical fiber on a center axis (A-A') thereof, a spring member (10) positioned coaxially with said ferrule, a slipout-preventing member (9') for preventing said spring member from slipping out, a first housing (16) for accomodating the ferrule, the spring member and the slipout-preventing member, said first housing being provided with a pair of extensions (16a) and a pawl (16d), and a second housing (17) for accomodating said first housing. The adaptor comprises a block with a cylindrical bore and a pair of side surfaces with recesses. The plug (14') and the adaptor are easily the firmly coupled in an operative position by mating the recesses of the plug of the adaptor with the pawls (16d) of the first housing (16) of the plug (14').
Inventors
- 👤 Shigeru Kaihara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 22:27
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/381; G02B6/3825; G02B6/3873; G02B6/3874; G02B6/3878; G02B6/3887; G02B6/3818; G02B6/3821; G02B6/3833; G02B6/3855; G02B6/3861; G02B6/3869; G02B6/387; G02B6/3889; G02B6/389; G02B6/3893
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
260 words
An optical fiber connector for connecting an optical fiber plug and an adaptor for receiving the optical fiber plug, comprising: the optical fiber plug including; a ferrule for fixing an optical fiber on a center axis thereof; a spring member positioned coaxially with said ferrule and along an outer periphey of the ferrule; a slipout-preventing member fixed to the ferrule for preventing said spring member from slipping out; a first housing for accommodating the ferrule, the spring member and the slipout-preventing member, said first housing being provided with a pair of extensions extending toward a tip of the ferrule along a side periphery of the ferrule, and a pawl protruding from a tip of each of said extensions toward the center axis of the ferrule; and a second housing for accommodating said first housing and slidable a predetermined amount in a direction parallel to the center axis of the ferrule in contact with an outer periphery of said first housing; said adaptor including a block provided with a cylindrical bore for receiving the ferrule, a pair of side surfaces which are parallel to a center axis of saidibore, and a recess provided in a part of each of said side surfaces; the plug and the adaptor being connected by mating the recesses of said block of the adaptor with the respective pawls of the first housing while inserting the tip of the ferrule into the cylindrical bore of the adaptor and, then, sliding the second housing to a position where the second housing covers the extensions of the first housing.
Claim 2
Dependent Claim
260 words
An optical fiber connector for connecting an optical fiber plug and an adaptor for receiving the optical fiber plug, comprising: the optical fiber plug including; a ferrule for fixing an optical fiber on a center axis thereof; a spring member positioned coaxially with said ferrule and along an outer periphey of the ferrule; a slipout-preventing member fixed to the ferrule for preventing said spring member from slipping out; a first housing for accommodating the ferrule, the spring member and the slipout-preventing member, said first housing being provided with a pair of extensions extending toward a tip of the ferrule along a side periphery of the ferrule, and a pawl protruding from a tip of each of said extensions toward the center axis of the ferrule; and a second housing for accommodating said first housing and slidable a predetermined amount in a direction parallel to the center axis of the ferrule in contact with an outer periphery of said first housing; said adaptor including a block provided with a cylindrical bore for receiving the ferrule, a pair of side surfaces which are parallel to a center axis of saidibore, and a recess provided in a part of each of said side surfaces; the plug and the adaptor being connected by mating the recesses of said block of the adaptor with the respective pawls of the first housing while inserting the tip of the ferrule into the cylindrical bore of the adaptor and, then, sliding the second housing to a position where the second housing covers the extensions of the first housing.
Claim 3
Dependent Claim
67 words
An optical fiber connector as claimed in claim 1, wherein the second housing is provided with extensions on outer surfaces thereof which make contact with the first housing, said extensions extending parallel to the center axis of the'ferrule and each being provided with a pawl which protrudes toward the center axis of the ferrule to engage with a part of the outer surface of the first housing.
Claim 4
Dependent Claim
64 words
An optical fiber connector as claimed in claim 1, wherein walls of the second housing which make contact with the first housing are each partly separated by slits to provide a double-wall structure made up of an outer wall and an inner wall, said inner wall extending along the center axis of the ferrule to engage with the outer surface of the first housing.
Claim 5
Dependent Claim
147 words
An optical fiber plug for an optical fiber connector, the plug comprising: a ferrule for fixing an optical fiber on a center axis thereof; a spring member positioned coaxially with said ferrule and along an outer periphey of the ferrule; a slipout-preventing member fixed to the ferrule for preventing said spring member from slipping out; a first housing for accommodating the ferrule, the spring member and the slipout-preventing member, said first housing being provided with a pair of extensions extending toward a tip of the ferrule along a side periphery of the ferrule, and a pawl protruding from a tip of each of said extensions toward the center axis of the ferrule; and a second housing for accommodating said first housing and slidable a predetermined amount in a direction parallel to the center axis of the ferrule in contact with an outer periphery of said first housing.
Claim 6
Dependent Claim
147 words
An optical fiber plug for an optical fiber connector, the plug comprising: a ferrule for fixing an optical fiber on a center axis thereof; a spring member positioned coaxially with said ferrule and along an outer periphey of the ferrule; a slipout-preventing member fixed to the ferrule for preventing said spring member from slipping out; a first housing for accommodating the ferrule, the spring member and the slipout-preventing member, said first housing being provided with a pair of extensions extending toward a tip of the ferrule along a side periphery of the ferrule, and a pawl protruding from a tip of each of said extensions toward the center axis of the ferrule; and a second housing for accommodating said first housing and slidable a predetermined amount in a direction parallel to the center axis of the ferrule in contact with an outer periphery of said first housing.
Claim 7
Dependent Claim
63 words
An adaptor for receiving an optical fiber plug, particularly according to claim 4, in an optical fiber connector, the adaptor comprising: a block provided with a cylindrical bore for receiving a ferrule of the plug, a pair of side surfaces which are parallel to a center axis of said bore, and a recess provided in a part of each of said side surfaces.
References Cited (Backward Citations)
No citation records indexed.
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