GB2255237A - Electrical plugs. - Google Patents

Electrical plugs. Download PDF

Info

Publication number
GB2255237A
GB2255237A GB9108628A GB9108628A GB2255237A GB 2255237 A GB2255237 A GB 2255237A GB 9108628 A GB9108628 A GB 9108628A GB 9108628 A GB9108628 A GB 9108628A GB 2255237 A GB2255237 A GB 2255237A
Authority
GB
United Kingdom
Prior art keywords
plug
flex
terminal
electrical
spring
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.)
Withdrawn
Application number
GB9108628A
Other versions
GB9108628D0 (en
Inventor
Peter Mowat Sutherland
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.)
DONNELL JAMES OWEN O
SIMPSON DUNCAN JOHN
Original Assignee
DONNELL JAMES OWEN O
SIMPSON DUNCAN JOHN
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
Application filed by DONNELL JAMES OWEN O, SIMPSON DUNCAN JOHN filed Critical DONNELL JAMES OWEN O
Priority to GB9108628A priority Critical patent/GB2255237A/en
Publication of GB9108628D0 publication Critical patent/GB9108628D0/en
Publication of GB2255237A publication Critical patent/GB2255237A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles

Landscapes

  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

An electrical plug comprises a terminal assembly 6 having a plurality of terminals electrically connected permanently with the pins of the plug and insulated from each other. The terminal assembly 6 presents an array of holes, one for each terminal, and further has spring-urged gates for holding the wires of an electrical flex in position within the plug, the gates being opened simultaneously by manual pressure on a bar 11. The plug base 1 snap fits to a cover carrying a flex clamp and an aperture receiving a fuse and holder mating with yokes 2 and 4. <IMAGE>

Description

ELECTRICAL PLUGS Description This invention relates to electrical plugs and particularly the three-pin fused plug in general use in the United Kingdom.
With existing models of such plugs it is necessary to cut the ends of the individual insulated wires in a flex to different lengths before fitting the plug to an electrical appliance. Otherwise some of the wires are stuffed into the plug and any sharp bends in the wire can lead to failure therein.
It has become the practice to sell electrical appliances with equal short lengths of insulated wire emerging from the overall insulation of the flex and with the ends of the lengths bared and the strands fused together or crimped within metal end sleeves ready for easy insertion into terminal holes for clamping.
According to the invention there is provided an electrical plug including therein a terminal assembly having a plurality of terminals electrically connected permanently with the pins of the plug and insulated from each other, the terminal assembly presenting an array of holes, one for each terminal, in close proximity to an entry point for an electrical flex, the holes having clamping gates spring-urged into wire-clamping position but being openable against the spring-pressures by manual operation.
An example of the invention will now be described, by way of example, with reference to the accompanying drawings in which Fig 1 is a plan view of a plug with the top cover removed; Fig 2 is an underneath plan view of the top of the plug; and Fig 3 is a side elevation of a cartridge fuse in a holder.
In the drawing an insulated base 1 of the plug has the usual three pins (not shown) extending from the base but being permanently fixed to the base 1. The live pin is connected to a spring yoke 2 which can be connected by a cartridge fuse 3 to another spring yoke 4 which is permanently connected, via a first metal strip 5, to a first terminal in a terminal assembly 6. The neutral pin is fixed at 7 and is permanently connected, via a second metal strip 8, to a second terminal in the assembly 6. Likewise, the earth or ground pin is fixed at 9 and i8 permanently connected, via a third metal strip 10, to a third terminal in the assembly 6. The three terminals in the assembly 6 are insulated from each other as are the strips 5, 8 and 10. The assembly 6 presents an array of holes, one for each terminal, opening downwards in Fig 1 and having spring-urged gates for clamping wires inserted in the holes.
The holes can be opened simultaneously by manually depressing a bar 11 which has differently coloured or otherwise coded segments for wiring guidance.
In the top cover 12 is a rectangular opening 13 which, on assembly of the plug, exposes the two yokes 2 and 4. A spring clamp 14 for the flex is embodied in a channel-shaped neck 15 of the cover 12. After the bared end of the two or three wires of a flex have been introduced into and clamped within the respective terminal holes in the assembly 6 the top cover 12 is snap-fitted to the base 1 and the flex is pushed into the neck 15 and held by the clamp 14. Finally, the fuse 3, in its holder 16, is inserted through the opening 13 and held by the yokes 2 and 4.

Claims (5)

Claims
1. A electrical plug comprising a terminal assembly having a plurality of terminals electrically connected permanently with the pins of the plug and insulated from each other, the terminal assembly presenting an array of holes, one for each terminal, and further having clamping means for holding the wires of an electric flex in position within the plug.
2. An electrical plug according to claim 1, wherein the clamping means is spring-urged into wire-clamping position but openable against the spring-pressures by manual operation.
3. An electrical plug according to claim 1 or 2, wherein the terminals are provided in close proximity to an entry point for the flex in the plug.
4. An electrical plug according to any one of the preceding claims wherein, a flex clamp is provided on the plug for holding the flex in the plug.
5. An electrical plug substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
GB9108628A 1991-04-23 1991-04-23 Electrical plugs. Withdrawn GB2255237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9108628A GB2255237A (en) 1991-04-23 1991-04-23 Electrical plugs.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9108628A GB2255237A (en) 1991-04-23 1991-04-23 Electrical plugs.

Publications (2)

Publication Number Publication Date
GB9108628D0 GB9108628D0 (en) 1991-06-12
GB2255237A true GB2255237A (en) 1992-10-28

Family

ID=10693739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9108628A Withdrawn GB2255237A (en) 1991-04-23 1991-04-23 Electrical plugs.

Country Status (1)

Country Link
GB (1) GB2255237A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB386808A (en) * 1932-01-06 1933-01-26 Nestle Lemur Company Improvement in hair-waving machines
GB727378A (en) * 1952-08-19 1955-03-30 Garnerot & Co Cons Agencies Lt Improvements in electrical plug connectors
GB859822A (en) * 1959-04-24 1961-01-25 Loblite Ltd Improvements in electrical connectors
GB1396774A (en) * 1972-02-01 1975-06-04 Blake L R Electrical connectors
GB2202096A (en) * 1986-12-16 1988-09-14 G S Curtis 13amp 3 pin electrical connector
US4836805A (en) * 1982-09-30 1989-06-06 Leviton Manufacturing Company, Inc. Wiring device system with single screw subassembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB386808A (en) * 1932-01-06 1933-01-26 Nestle Lemur Company Improvement in hair-waving machines
GB727378A (en) * 1952-08-19 1955-03-30 Garnerot & Co Cons Agencies Lt Improvements in electrical plug connectors
GB859822A (en) * 1959-04-24 1961-01-25 Loblite Ltd Improvements in electrical connectors
GB1396774A (en) * 1972-02-01 1975-06-04 Blake L R Electrical connectors
US4836805A (en) * 1982-09-30 1989-06-06 Leviton Manufacturing Company, Inc. Wiring device system with single screw subassembly
GB2202096A (en) * 1986-12-16 1988-09-14 G S Curtis 13amp 3 pin electrical connector

Also Published As

Publication number Publication date
GB9108628D0 (en) 1991-06-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)