GB2043935A - Optical Fibre or Electrical Connectors Comprising Resilient Biasing Tines - Google Patents

Optical Fibre or Electrical Connectors Comprising Resilient Biasing Tines Download PDF

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Publication number
GB2043935A
GB2043935A GB7930036A GB7930036A GB2043935A GB 2043935 A GB2043935 A GB 2043935A GB 7930036 A GB7930036 A GB 7930036A GB 7930036 A GB7930036 A GB 7930036A GB 2043935 A GB2043935 A GB 2043935A
Authority
GB
United Kingdom
Prior art keywords
connector
tines
fibre
resilient
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7930036A
Other versions
GB2043935B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bunker Ramo Corp
Original Assignee
Bunker Ramo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to IN565/CAL/79A priority Critical patent/IN152066B/en
Application filed by Bunker Ramo Corp filed Critical Bunker Ramo Corp
Priority to GB7930036A priority patent/GB2043935B/en
Publication of GB2043935A publication Critical patent/GB2043935A/en
Application granted granted Critical
Publication of GB2043935B publication Critical patent/GB2043935B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
    • G02B6/3893—Push-pull type, e.g. snap-in, push-on
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3869—Mounting ferrules to connector body, i.e. plugs
    • G02B6/387—Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3887—Anchoring optical cables to connector housings, e.g. strain relief features
    • G02B6/3888—Protection from over-extension or over-compression
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/426—Securing by a separate resilient retaining piece supported by base or case, e.g. collar or metal contact-retention clip
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/42—Securing in a demountable manner
    • H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
    • H01R13/434—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by separate resilient locking means on contact member, e.g. retainer collar or ring around contact member
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3855—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule
    • G02B6/3862—Details of mounting fibres in ferrules; Assembly methods; Manufacture characterised by the method of anchoring or fixing the fibre within the ferrule radially-compressed, longitudinally-split ferrules consisting of a pair of identical matching halves

Abstract

An optical-fibre connector for coupling two pairs of optical fibres 20 may comprise two engaging body parts 10, 50 held together by resilient latches 60. Each optical fibre 20 is terminated by a ferrule 26a, 26b having a frusto-conical surface 30. Resilient tine(s) 40, formed integrally with the connector body-parts 10, 50, contact(s) the frusto-conical surfaces 30 to urge the ferrules 26a, 26b of the fibres 20 in the left-hand body-part 10 against the ends of the projections 54 of the right-hand body-part 50 and the ferrules 26a, 26b of the fibres 20 in the right-hand body-part 50 against shoulders 74. A gap of approximately 0.025 mm may be maintained between end-faces 76 of the ferrules 26a, 26b. In an alternative embodiment an electrical connector has a similar arrangement of interengaging resilient tines and frusto-conical surfaces. <IMAGE>

Description

SPECIFICATION Improvements in or Relating to Resilient Biasing Means This invention relates to electrical and opticalfibre connectors.
It is an object of this invention to provide a connector in which the terminal end of an electrical conductor or an optical fibre can be retained in the connector and resiliently biased such that a desired separation of the ends of optical fibers can be attained or a secure conducting connection can be formed between electrical conductors.
According to the present invention there is provided an optical-fibre or electrical connector, comprising a termination member suitable for terminating an electrical conductor or an optical fibre, the termination member being slidably mounted through an aperture in a connector body-member and means resiliently biasing the termination member against sliding movement in a first direction relative to the connector bodymember, the biasing means comprising at least one resilient tine acting between the two members with the free end of the tine in sliding engagement with a surface on one of the two members which surface is non-parallel with the said direction, whereby the tine suffers deflection about its root and transverse to the said first direction on the occurrence of relative movement between the two members in the said first direction.
Two embodiments of the invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 shows both parts of a two-part optical-fibre connector, partly in section, Figure 2 shows a cross-section along the line Il-Il of Figure 1, Figure 3 shows a portion of one part of a twopart electrical connector, partly in section, and Figure 4 shows an assembly of tines and part of a connector-contact separated from the connector shown in Figure 3.
The optical-fibre connector shown in Figures 1 and 2 comprises a first part indicated generally at 10 coupled with a second part indicated generally at 50.
The first part 10 comprises a body 12 formed from two inter-engaging half-bodies 1 4 each moulded from plastics material. The half-bodies 1 4 are held together by the engagement of pegs 1 8 formed integrally with each half-body 14 with shoulders in corresponding sockets 1 6. Each body 12 thus formed has two passages 1 7 of generally circular cross-section formed therethrough. An optical-fibre 20 passes into each passage 1 7 through a frusto-conical entry port 22 and is secured in the body 12 by a serrated portion 24 of the passage 17.Each fibre 20 is terminated by a termination member in the form of a ferrule 26a or 26b, of generally circular cross-section which has a flanged portion 28 adjacent to its rearward end (the left-hand end of the part 10 in Figure 1), a frusto-conical ramped portion 30, nearer its forward end, and a terminal portion 32. Each ferrule 26 is free to slide axially in the body between forward and rearward limits determined by abutment of the flange 28 against respective shoulders 36, 34 formed within the body. In Figure 1 the upper ferrule 26a is shown in its extreme forward position and the lower ferrule 26b is shown in its extreme rearward position.
The passage has a portion 38 of increased crosssection which allows for buckling of the fibre 20 as shown in Figure 1 for the lower ferrule 26b.
Resilient tines 40 are formed integrally with the body 12 and urge each ferrule 26 in a forward direction by engagement with the frusto-conical ramp portions 30 of the ferrules 26a, 26b.
The second part 50 of the connector includes the features described above with reference to the first part 10 and such features are indicated by identical reference numerals. The forward end of this part 50 is the left-hand end in Figure 1.
Each passage 1 7 through the first part 10 of the connector is increased in diameter at its forward end to form a cylindrical recess 52 which, when the parts 10 and 50 are connected, accommodates a corresponding cylindrical projection 54 formed around the forward end of each passage 17 through the second part 50. The recesses 52 and projections 54 are so dimensioned that respective end faces 56 and 58 of the first and second connector parts are in contact when the two connector parts are coupled as shown.
Integral resilient latches 60 are connected by stem portions 66 to the body 12 of the second part 50 and have hooked portions 62 which engage notches 64 formed in the body 12 of the first connector part 1 0.
When the connector parts 10 and 50 are coupled as described above, shoulders 70 on the ferrules 26a, 26b of the first part 10 are urged by the tines 40 of the first part 10 against the ends of the projections 54, and shoulders 72 on the ferrules 26a, 26b of the second part 50 are similarly urged against shoulders 74 on the inside of the passages 1 7. The lengths of the terminal portions 32 of the ferrules 26a, 26b are chosen such that the end-faces 76 of each ferrule are held with a clearance of approximately 0.025 mm therebetween.
Referring now to Figs. 3 and 4 the portion of one part of an electrical connector has a body 80 in which a conductor-termination member in the form of a movable contact 86 is mounted. The contact 86 is formed having a flange portion 82 and a rearwardly tapering frusto-conical ramp portion 84 (towards the right-hand end in Figure 3). The contact 86 slides axially in a passage 90 in the body 80 and is urged forwardly by four resilient metal tines 92 which act upon the frustoconical portion 84 of the contact 86. The tines 92 are connected to a circular band 94 which fits within the passage 90. The movable contact 86 is connected to a fixed contact 96 which is mounted in the body 80 rearwardly of the movable contact 86 and is connected thereto by a flexible conductor wire 98.
In use, the forward end 88 of the movable contact 86 is held by the resilient tines 92 in engagement with a contact in another device (not shown) to which it is desired to make an electrical connection.
Figure 4 shows the resilient tines 92, the band 94 and the movable contact 86 separated from the body 80 of the connector part.

Claims (7)

Claims
1. An optical-fibre or electrical connector, comprising a termination member suitable for terminating an electrical conductor or an optical fibre, the termination member being slidably mounted through an aperture in a connector body-member and means resiliently biasing the termination member against sliding movement in a first direction relative to the connector bodymember, the biasing means comprising at least one resilient tine acting between the two members with the free end of the tine in sliding engagement with a surface on one of the two members which surface is non-parallel with the said direction, whereby the tine suffers deflection about its root and transverse to the said first direction on the occurrence of relative movement between the two members in the said first direction.
2. A connector according to claim 1, wherein the said surface is a surface on the termination member.
3. A connector according to claim 2, wherein the connector body-member is of moulded plastics material and a plurality of the said tines is provided which are integral with the bodymember.
4. A connector according to claim 2, wherein a plurality of the said tines is provided and extend from a supporting band.
5. A connector according to claim 4, wherein the said tines and band are integral and of resilient metal.
6. An opticai-fibre connector substantially as hereinbefore described and as shown in Figs. 1 and 2 of the accompanying drawings.
7. An electrical connector substantially as hereinbefore described and as shown in Figs. 3 and 4 of the accompanying drawings.
GB7930036A 1978-05-31 1979-08-30 Optical fibre of electrical connectors comprising resilient biasing tines Expired GB2043935B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IN565/CAL/79A IN152066B (en) 1978-05-31 1979-05-31
GB7930036A GB2043935B (en) 1978-05-31 1979-08-30 Optical fibre of electrical connectors comprising resilient biasing tines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2533878 1978-05-31
GB7930036A GB2043935B (en) 1978-05-31 1979-08-30 Optical fibre of electrical connectors comprising resilient biasing tines

Publications (2)

Publication Number Publication Date
GB2043935A true GB2043935A (en) 1980-10-08
GB2043935B GB2043935B (en) 1983-04-20

Family

ID=26257627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7930036A Expired GB2043935B (en) 1978-05-31 1979-08-30 Optical fibre of electrical connectors comprising resilient biasing tines

Country Status (2)

Country Link
GB (1) GB2043935B (en)
IN (1) IN152066B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569279A3 (en) * 1984-08-14 1986-02-21 Alsthom Cgee Terminal block for optical fibres
EP0189609A1 (en) * 1984-12-05 1986-08-06 Koninklijke Philips Electronics N.V. Optical connector device
FR2591759A1 (en) * 1985-12-18 1987-06-19 Pirelli Cavi Spa CONNECTOR FOR FIBER OPTIC CABLES
EP0275942A2 (en) * 1987-01-20 1988-07-27 Siemens Aktiengesellschaft Fibre-optical connection
FR2625617A1 (en) * 1987-11-16 1989-07-07 Prestolite Wire Corp TOOL FOR ELECTRICAL CONNECTION OF AN IGNITION SYSTEM WITHOUT DISTRIBUTOR
EP1037076A1 (en) * 1999-03-17 2000-09-20 Reichle &amp; De-Massari AG Lightguide contact connector for connector assemblies

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569279A3 (en) * 1984-08-14 1986-02-21 Alsthom Cgee Terminal block for optical fibres
EP0189609A1 (en) * 1984-12-05 1986-08-06 Koninklijke Philips Electronics N.V. Optical connector device
FR2591759A1 (en) * 1985-12-18 1987-06-19 Pirelli Cavi Spa CONNECTOR FOR FIBER OPTIC CABLES
EP0275942A2 (en) * 1987-01-20 1988-07-27 Siemens Aktiengesellschaft Fibre-optical connection
EP0275942A3 (en) * 1987-01-20 1989-09-13 Siemens Aktiengesellschaft Fibre-optical connection
FR2625617A1 (en) * 1987-11-16 1989-07-07 Prestolite Wire Corp TOOL FOR ELECTRICAL CONNECTION OF AN IGNITION SYSTEM WITHOUT DISTRIBUTOR
GB2212992A (en) * 1987-11-16 1989-08-02 Prestolite Wire Corp Insulating and retaining spark plug connectors
GB2212992B (en) * 1987-11-16 1992-01-22 Prestolite Wire Corp An electrical connector
EP1037076A1 (en) * 1999-03-17 2000-09-20 Reichle &amp; De-Massari AG Lightguide contact connector for connector assemblies

Also Published As

Publication number Publication date
GB2043935B (en) 1983-04-20
IN152066B (en) 1983-10-08

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee