GB2092398A - An electrically conductive plug pin - Google Patents

An electrically conductive plug pin Download PDF

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Publication number
GB2092398A
GB2092398A GB8202300A GB8202300A GB2092398A GB 2092398 A GB2092398 A GB 2092398A GB 8202300 A GB8202300 A GB 8202300A GB 8202300 A GB8202300 A GB 8202300A GB 2092398 A GB2092398 A GB 2092398A
Authority
GB
United Kingdom
Prior art keywords
pin
plug
hollow
terminal
base
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
GB8202300A
Other versions
GB2092398B (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.)
Balfour Beatty PLC
FCI USA LLC
Original Assignee
BICC PLC
Burndy 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
Application filed by BICC PLC, Burndy Corp filed Critical BICC PLC
Priority to GB8202300A priority Critical patent/GB2092398B/en
Publication of GB2092398A publication Critical patent/GB2092398A/en
Application granted granted Critical
Publication of GB2092398B publication Critical patent/GB2092398B/en
Expired legal-status Critical Current

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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
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • 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
    • H01R31/00—Coupling parts supported only by co-operation with counterpart

Abstract

A plug pin for use as the live pin of a three-pin electric plug is formed from sheet metal or metal alloy which has been folded or otherwise shaped to form a hollow pin 1 and has, detachably connected to that end thereof which will be within the plug body, means for effecting electrical connection to a terminal of a cartridge fuse. The cartridge fuse connecting means may be a clip comprising a base and a pair of oppositely disposed resilient lugs 6 which are integral with opposite side edges of the base and which define between them an opening into which a cartridge fuse terminal can make a snap fit. <IMAGE>

Description

SPECIFICATION An electrically conductive plug pin This invention relates to electrically conductive plug pins and is especially, but not exclusively, concerned with electrically conductive plug pins for use in electric plugs of the kind used in domestic and similar wiring systems.
in electric plugs used in domestic and similar wiring systems, for example the "13 amp" plugs of the kind to which British Standard Specification No 1363 relates, it is now the general practice to provide in the plug, interconnected between the live pin and the associated terminal to which the live conductor of an electric cable is electrically connected, a cartridge fuse of a rating appropriate to the electric appliance to which the plug is connected. The means for electrically connecting a cartridge fuse between the live pin and its associated conductor terminal are usually of such a form that a cartridge fuse can be readily changed by an unskilled user of the plug.
It is an object of the present invention to provide a simple and inexpensive electrically conductive plug pin which is particularly suitable for use as the live pin of an electric plug.
According to the present invention, the improved electrically conductive plug pin is formed from sheet metal or metal alloy which has been folded or otherwise shaped to form a hollow pin and has, detachably connected to the pin, means for effecting electrial connection to a terminal of a cartridge fuse.
Preferably, the means for effecting electrical connection to a terminal of a cartridge fuse is a clip comprising a base and a pair of oppositely disposed resilient lugs which are integral with opposite side edges of the base and which define between them an opening into which a terminal of a cartridge fuse can make a snap fit. Each resilient lug is preferably of substantially arcuate shape with its radius of curvature approximating to that of a terminal of a cartridge fuse and at its free end is preferably folded outwardly to facilitate insertion of a fuse terminal between the lugs.
The means for effecting electrical connection to a terminal of a cartridge fuse may be detachably connected to the hollow pin in any convenient manner but, preferably, said connecting means and the hollow pin are detachably interconnected by a plug and socket arrangement. In a preferred embodiment, said detachable connecting means is a clip which has integral with opposite side edges of its base a pair of resilient ears which are folded over in a direction away from the lugs of the clip to define with the base a socket, and, at the end of the hollow pin which will be positioned within the body of an electric plug, the pin has integral with one of its side walls a tongue which makes a tight fit in the socket of said connecting means.Alternatively, the hollow pin may have integral with at least one of its side walls resilient ears which define a socket and the base of the clip constituting said detachable connecting means may have an integral tongue which makes a tight fit in the socket.
It will be appreciated that the hollow pin and the detachable connecting means can each be readily formed from a continuous strip, thus facilitating automatic manufacture and assembly.
The invention also includes an electric plug having a live pin substantially as hereinbefore described.
The invention is further illustrated by a description, by way of example, of a preferred form of hollow live pin for use in a 13 amp plug, with reference to the accompanying drawing which shows an exploded perspective view of the hollow live pin.
The hollow live pin 1 shown in the drawing is formed from a preform of folded sheet brass. At the end of the pin 1 which will be positioned within the body of an electric plug, a tongue 2 is integral with one major side wall of the pin and is folded so that it lies in a plane normal to the axis of the pin.
Separately formed with respect to the pin is a clip 4 of phosphor bronze constiuting detachable means for effecting electrical connection to a terminal of a cartridge fuse and comprising a base 5 and a pair of oppositely disposed resilient lugs 6 integral with opposite side edges of the base. The resilient lugs 6 define between them an opening into which a terminal of a cartridge fuse can make a snap fit. Each resilient lug 6 at its free end is folded outwardly at 7 to facilitate insertion of a fuse terminal between the lugs. Integral with the other opposite side edges of the base 5 are resilient ears 8 which are folded over in a direction away from the lugs 6 to define with the base 5 a socket 9 into which the tongue 2 makes a tight fit.
1. For use in an electric plug, an electrically conductive hollow pin which is formed from sheet metal or metal alloy folded or otherwise shaped into hollow form and which has, detachably connected to the pin, means for effecting electrical connection to a terminal of a cartridge fuse.
2. For use in an electric plug, an electrically conductive hollow pin which is formed from sheet metal or metal alloy folded or otherwise shaped into hollow form and which has, detachably connected to the pin, a clip comprising a base and a pair of oppositely disposed resilient lugs which are integral with opposite side edges of the base and which define between them an opening into which a terminal of a cartridge fuse can make a snap fit.
3. An electrically conductive hollow plug pin as claimed in Claim 2, wherein each resilient lug is of substantially arcuate shape with its radius of curvature approximating to that of a terminal of a cartridge fuse.
4. An electrically conductive hollow plug pin as claimed in Claim 2 or 3, wherein each resilient lug, at its free end, is folded outwardly to facilitate insertion of a fuse terminal between the lugs.
5. An electrically conductive hollow plug pin as claimed in any one of the preceding Claims, wherein the connecting means and the hollow pin are detachably interconnected by a plug and socket arrangement.
6. An electrically conductive hollow plug pin as
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION An electrically conductive plug pin This invention relates to electrically conductive plug pins and is especially, but not exclusively, concerned with electrically conductive plug pins for use in electric plugs of the kind used in domestic and similar wiring systems. in electric plugs used in domestic and similar wiring systems, for example the "13 amp" plugs of the kind to which British Standard Specification No 1363 relates, it is now the general practice to provide in the plug, interconnected between the live pin and the associated terminal to which the live conductor of an electric cable is electrically connected, a cartridge fuse of a rating appropriate to the electric appliance to which the plug is connected. The means for electrically connecting a cartridge fuse between the live pin and its associated conductor terminal are usually of such a form that a cartridge fuse can be readily changed by an unskilled user of the plug. It is an object of the present invention to provide a simple and inexpensive electrically conductive plug pin which is particularly suitable for use as the live pin of an electric plug. According to the present invention, the improved electrically conductive plug pin is formed from sheet metal or metal alloy which has been folded or otherwise shaped to form a hollow pin and has, detachably connected to the pin, means for effecting electrial connection to a terminal of a cartridge fuse. Preferably, the means for effecting electrical connection to a terminal of a cartridge fuse is a clip comprising a base and a pair of oppositely disposed resilient lugs which are integral with opposite side edges of the base and which define between them an opening into which a terminal of a cartridge fuse can make a snap fit. Each resilient lug is preferably of substantially arcuate shape with its radius of curvature approximating to that of a terminal of a cartridge fuse and at its free end is preferably folded outwardly to facilitate insertion of a fuse terminal between the lugs. The means for effecting electrical connection to a terminal of a cartridge fuse may be detachably connected to the hollow pin in any convenient manner but, preferably, said connecting means and the hollow pin are detachably interconnected by a plug and socket arrangement. In a preferred embodiment, said detachable connecting means is a clip which has integral with opposite side edges of its base a pair of resilient ears which are folded over in a direction away from the lugs of the clip to define with the base a socket, and, at the end of the hollow pin which will be positioned within the body of an electric plug, the pin has integral with one of its side walls a tongue which makes a tight fit in the socket of said connecting means.Alternatively, the hollow pin may have integral with at least one of its side walls resilient ears which define a socket and the base of the clip constituting said detachable connecting means may have an integral tongue which makes a tight fit in the socket. It will be appreciated that the hollow pin and the detachable connecting means can each be readily formed from a continuous strip, thus facilitating automatic manufacture and assembly. The invention also includes an electric plug having a live pin substantially as hereinbefore described. The invention is further illustrated by a description, by way of example, of a preferred form of hollow live pin for use in a 13 amp plug, with reference to the accompanying drawing which shows an exploded perspective view of the hollow live pin. The hollow live pin 1 shown in the drawing is formed from a preform of folded sheet brass. At the end of the pin 1 which will be positioned within the body of an electric plug, a tongue 2 is integral with one major side wall of the pin and is folded so that it lies in a plane normal to the axis of the pin. Separately formed with respect to the pin is a clip 4 of phosphor bronze constiuting detachable means for effecting electrical connection to a terminal of a cartridge fuse and comprising a base 5 and a pair of oppositely disposed resilient lugs 6 integral with opposite side edges of the base. The resilient lugs 6 define between them an opening into which a terminal of a cartridge fuse can make a snap fit. Each resilient lug 6 at its free end is folded outwardly at 7 to facilitate insertion of a fuse terminal between the lugs. Integral with the other opposite side edges of the base 5 are resilient ears 8 which are folded over in a direction away from the lugs 6 to define with the base 5 a socket 9 into which the tongue 2 makes a tight fit. CLAIMS
1. For use in an electric plug, an electrically conductive hollow pin which is formed from sheet metal or metal alloy folded or otherwise shaped into hollow form and which has, detachably connected to the pin, means for effecting electrical connection to a terminal of a cartridge fuse.
2. For use in an electric plug, an electrically conductive hollow pin which is formed from sheet metal or metal alloy folded or otherwise shaped into hollow form and which has, detachably connected to the pin, a clip comprising a base and a pair of oppositely disposed resilient lugs which are integral with opposite side edges of the base and which define between them an opening into which a terminal of a cartridge fuse can make a snap fit.
3. An electrically conductive hollow plug pin as claimed in Claim 2, wherein each resilient lug is of substantially arcuate shape with its radius of curvature approximating to that of a terminal of a cartridge fuse.
4. An electrically conductive hollow plug pin as claimed in Claim 2 or 3, wherein each resilient lug, at its free end, is folded outwardly to facilitate insertion of a fuse terminal between the lugs.
5. An electrically conductive hollow plug pin as claimed in any one of the preceding Claims, wherein the connecting means and the hollow pin are detachably interconnected by a plug and socket arrangement.
6. An electrically conductive hollow plug pin as claimed in Claim 2, wherein the clip which has integral with opposite side edges of its base a pair of resilient ears which are folded over in a direction away from the lugs of the clip to define with the base a socket and, at the end of the hollow pin which will be positioned within the body of an electric plug, the pin has integral with one of its side walls, a tongue which makes a tight fit in the socket of the clip.
7. For use in an electric plug, an electrially conductive hollow pin substantially as hereinbefore described with reference to and as shown in the accompanying drawing.
8. An electric plug having an electrically conductive hollow pin as claimed in any one of the preceding Claims.
GB8202300A 1981-01-29 1982-01-27 An electrically conductive plug pin Expired GB2092398B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8202300A GB2092398B (en) 1981-01-29 1982-01-27 An electrically conductive plug pin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8102690 1981-01-29
GB8202300A GB2092398B (en) 1981-01-29 1982-01-27 An electrically conductive plug pin

Publications (2)

Publication Number Publication Date
GB2092398A true GB2092398A (en) 1982-08-11
GB2092398B GB2092398B (en) 1984-10-31

Family

ID=26278261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8202300A Expired GB2092398B (en) 1981-01-29 1982-01-27 An electrically conductive plug pin

Country Status (1)

Country Link
GB (1) GB2092398B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213312A2 (en) * 1985-09-06 1987-03-11 TRW Daut &amp; Rietz GmbH &amp; Co. KG Arrangement for connecting sockets or pins, placed in cases or in plug bodies, with connecting wires
GB2244872A (en) * 1990-05-04 1991-12-11 Herbert Victor Haskins Spring clip for earthing
US5082452A (en) * 1988-12-21 1992-01-21 Daiichi Denso Buhin Co., Ltd. Clamp-type electrical connectors
GB2247789A (en) * 1990-08-14 1992-03-11 Amp Inc An electrical terminal and an electrical connecting assembly
US5145415A (en) * 1991-03-18 1992-09-08 Siemens Electric Limited Load base with integral wire lug and wire lug retainer
US5269710A (en) * 1990-12-17 1993-12-14 Siemens Energy & Automation, Inc. Lay-in lug
EP3896715A1 (en) * 2020-04-14 2021-10-20 Tyco Electronics France SAS Fuse holding element configured to releasably cooperate with a conducting bar

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0213312A2 (en) * 1985-09-06 1987-03-11 TRW Daut &amp; Rietz GmbH &amp; Co. KG Arrangement for connecting sockets or pins, placed in cases or in plug bodies, with connecting wires
EP0213312A3 (en) * 1985-09-06 1989-02-22 Trw Daut & Rietz Gmbh & Co. Kg Arrangement for connecting sockets or pins, placed in cases or in plug bodies, with connecting wires
US5082452A (en) * 1988-12-21 1992-01-21 Daiichi Denso Buhin Co., Ltd. Clamp-type electrical connectors
GB2244872A (en) * 1990-05-04 1991-12-11 Herbert Victor Haskins Spring clip for earthing
GB2247789A (en) * 1990-08-14 1992-03-11 Amp Inc An electrical terminal and an electrical connecting assembly
GB2247789B (en) * 1990-08-14 1994-10-05 Amp Inc An electrical terminal and an electrical connecting assembly
US5269710A (en) * 1990-12-17 1993-12-14 Siemens Energy & Automation, Inc. Lay-in lug
US5145415A (en) * 1991-03-18 1992-09-08 Siemens Electric Limited Load base with integral wire lug and wire lug retainer
EP3896715A1 (en) * 2020-04-14 2021-10-20 Tyco Electronics France SAS Fuse holding element configured to releasably cooperate with a conducting bar
CN113539761A (en) * 2020-04-14 2021-10-22 泰科电子法国公司 Fuse holding element configured to releasably mate with a conductive bar
US11295920B2 (en) 2020-04-14 2022-04-05 Tyco Electronics France Sas Fuse holding element configured to releasibly cooperate with a conducting bar

Also Published As

Publication number Publication date
GB2092398B (en) 1984-10-31

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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