GB2184614A - Attaching a wire to an electrical terminal - Google Patents

Attaching a wire to an electrical terminal Download PDF

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Publication number
GB2184614A
GB2184614A GB08531736A GB8531736A GB2184614A GB 2184614 A GB2184614 A GB 2184614A GB 08531736 A GB08531736 A GB 08531736A GB 8531736 A GB8531736 A GB 8531736A GB 2184614 A GB2184614 A GB 2184614A
Authority
GB
United Kingdom
Prior art keywords
wire
plug
connection member
prong
screw
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Withdrawn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
GB08531736A
Other versions
GB8531736D0 (en
Inventor
Kun Shan Chen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08531736A priority Critical patent/GB2184614A/en
Publication of GB8531736D0 publication Critical patent/GB8531736D0/en
Publication of GB2184614A publication Critical patent/GB2184614A/en
Withdrawn legal-status Critical Current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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/16—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by bending

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The free end of a wire is inserted in a hole (12, 32) and attached permanently to an electrical terminal (1), e.g. by means of a screw (2) or by wrapping the wire round a lug (31) before bending the lug to clamp the wire. Inserting the wire into the hole minimises the danger of dislocation of the wire. <IMAGE>

Description

SPECIFICATION Connection member for an electrical connector The present invention relates to connection members such as prongs for electrical connectors such as plugs.
In conventional plugs, sockets or switches, the supply wires are connected to these by means of screws, that is, the end of the wire is tightly screwed onto the metal prongs. Generally, the end of wire is made into a circular hook and this is trapped by the screw, however, the end of wire is usually not properly secured. Thus, the wire may be dislocated, and as a result, a short-circuit may occur.
It is therefore the primary object of the present invention to provide some means of reinforcing the attachment of the wire to the metal prong of the plug and to enable the wire to be readily tightened.
It is another object of the present invention to allow the wire to be firmly secured in position.
It is a further object of the present invention to minimise the dangerofshort-circuiting of wire in plugs or switches.
It is yet another object of the present invention to minimise the danger of dislocation of the wires connected in the plug.
It is yet another object of the present invention to increase the conductivity in the connection of the wire to a prong of an electrical appliance.
According to the present invention, there is provided a connection member for an electrical connector comprising a connector body having means for positively attaching the free end of wire and an aperture beside the attaching means for the insertion of free end wire in addition to its being attached to the attaching means.
The attaching means may comprise a screw or a clamping plate around which the wire may be wound.
The connection member may be a prong for a plug or a contact plate for a switch or socket.
In electrical appliances for home use, for example, fans, televisions, refrigerators and table lamps, the current supply is below 15A which means that the thickness of the copper wire provided is about 1.6 mm. As a result, a preferred embodiment of the present invention has an opening of about 2 mm in diameter, which is convenient for this common wire. If required, a larger diameter opening may be employed to suit a larger wire.
The invention may be carried into practice in various ways and some embodiments thereof will now be described by way of example only with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a metal prong of a plug having a reinforcing hole in accordance with the present invention; Figure 2 is a perspective view of two metal prongs as shown in Figure 1 mounted in a plug; Figure 3 is a perspective view of metal prongs or contact plates mounted in a switch; Figure 4 is a perspective view of metal prongs or contact plates mounted in a socket for a bulb; Figure 5 is a perspective view similar to Figure 1 showing an alternative embodiment of a metal prong; and Figure 6 shows prongs as shown in Figure 5 mounted in a plug.
Referring to the drawings, Figure 1 shows a prong for an electrical plug consisting essentially of a body with a screw hole 11, and a reinforcing hole 12 beside the screw hole 11. The reinforcing hole 12 is therefore in addition to the conventionally designed screw hole 11.
Figure 2 illustrates the application to two such metal prongs in a plug. The wire 4 is wound round a screw 2 and tightened by screwing the screw 2 into the hole 11. The far end of the wire 4 is inserted into the reinforcing hole 12. As a result such free end will tend not to dislocate and will remain firmly secured in the plug.
Figure 3 shows a similar construction applied to a switch 6, while Figure 4 shows a similar construction applied to a socket 7 for a light bulb. In each case, the wire 4 is wound around a screw 4 which is tightened and the free end of the wire is inserted into a hole 12.
Figures 5 and 6 show another embodiment of the invention, applied to the body 3 of a metal prong.
The wire 4 is wound around a clamping plate 31 which is then bent forward towards the body 3 thereby clamping the wire. After that the free end of the wire 4 is inserted into a reinforcing hole 32 in the metal prong.
1. A connection member for an electrical connector comprising a connector body having means for positively attaching the free end of wire and an aperture beside the attaching means for the insertion of free end wire in addition to its being attached to the attaching means.
2. A connection member as claimed in Claim 1 in which the attaching means is a screw.
3. A connection member as claimed in Claim 1 in which the attaching means comprises a clamping plate around which the wire may be wound.
4. A connection member as claimed in any preceding claim in the form of a prong for a plug.
5. A connection member as claimed in any of Claims 1 to 3 in the form of a contact plate in a switch or socket.
6. A connection member constructed and arranged substantially as herein specifically described with reference to and as shown in any one of the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Connection member for an electrical connector The present invention relates to connection members such as prongs for electrical connectors such as plugs. In conventional plugs, sockets or switches, the supply wires are connected to these by means of screws, that is, the end of the wire is tightly screwed onto the metal prongs. Generally, the end of wire is made into a circular hook and this is trapped by the screw, however, the end of wire is usually not properly secured. Thus, the wire may be dislocated, and as a result, a short-circuit may occur. It is therefore the primary object of the present invention to provide some means of reinforcing the attachment of the wire to the metal prong of the plug and to enable the wire to be readily tightened. It is another object of the present invention to allow the wire to be firmly secured in position. It is a further object of the present invention to minimise the dangerofshort-circuiting of wire in plugs or switches. It is yet another object of the present invention to minimise the danger of dislocation of the wires connected in the plug. It is yet another object of the present invention to increase the conductivity in the connection of the wire to a prong of an electrical appliance. According to the present invention, there is provided a connection member for an electrical connector comprising a connector body having means for positively attaching the free end of wire and an aperture beside the attaching means for the insertion of free end wire in addition to its being attached to the attaching means. The attaching means may comprise a screw or a clamping plate around which the wire may be wound. The connection member may be a prong for a plug or a contact plate for a switch or socket. In electrical appliances for home use, for example, fans, televisions, refrigerators and table lamps, the current supply is below 15A which means that the thickness of the copper wire provided is about 1.6 mm. As a result, a preferred embodiment of the present invention has an opening of about 2 mm in diameter, which is convenient for this common wire. If required, a larger diameter opening may be employed to suit a larger wire. The invention may be carried into practice in various ways and some embodiments thereof will now be described by way of example only with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a metal prong of a plug having a reinforcing hole in accordance with the present invention; Figure 2 is a perspective view of two metal prongs as shown in Figure 1 mounted in a plug; Figure 3 is a perspective view of metal prongs or contact plates mounted in a switch; Figure 4 is a perspective view of metal prongs or contact plates mounted in a socket for a bulb; Figure 5 is a perspective view similar to Figure 1 showing an alternative embodiment of a metal prong; and Figure 6 shows prongs as shown in Figure 5 mounted in a plug. Referring to the drawings, Figure 1 shows a prong for an electrical plug consisting essentially of a body with a screw hole 11, and a reinforcing hole 12 beside the screw hole 11. The reinforcing hole 12 is therefore in addition to the conventionally designed screw hole 11. Figure 2 illustrates the application to two such metal prongs in a plug. The wire 4 is wound round a screw 2 and tightened by screwing the screw 2 into the hole 11. The far end of the wire 4 is inserted into the reinforcing hole 12. As a result such free end will tend not to dislocate and will remain firmly secured in the plug. Figure 3 shows a similar construction applied to a switch 6, while Figure 4 shows a similar construction applied to a socket 7 for a light bulb. In each case, the wire 4 is wound around a screw 4 which is tightened and the free end of the wire is inserted into a hole 12. Figures 5 and 6 show another embodiment of the invention, applied to the body 3 of a metal prong. The wire 4 is wound around a clamping plate 31 which is then bent forward towards the body 3 thereby clamping the wire. After that the free end of the wire 4 is inserted into a reinforcing hole 32 in the metal prong. CLAIMS
1. A connection member for an electrical connector comprising a connector body having means for positively attaching the free end of wire and an aperture beside the attaching means for the insertion of free end wire in addition to its being attached to the attaching means.
2. A connection member as claimed in Claim 1 in which the attaching means is a screw.
3. A connection member as claimed in Claim 1 in which the attaching means comprises a clamping plate around which the wire may be wound.
4. A connection member as claimed in any preceding claim in the form of a prong for a plug.
5. A connection member as claimed in any of Claims 1 to 3 in the form of a contact plate in a switch or socket.
6. A connection member constructed and arranged substantially as herein specifically described with reference to and as shown in any one of the accompanying drawings.
GB08531736A 1985-12-24 1985-12-24 Attaching a wire to an electrical terminal Withdrawn GB2184614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08531736A GB2184614A (en) 1985-12-24 1985-12-24 Attaching a wire to an electrical terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08531736A GB2184614A (en) 1985-12-24 1985-12-24 Attaching a wire to an electrical terminal

Publications (2)

Publication Number Publication Date
GB8531736D0 GB8531736D0 (en) 1986-02-05
GB2184614A true GB2184614A (en) 1987-06-24

Family

ID=10590242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08531736A Withdrawn GB2184614A (en) 1985-12-24 1985-12-24 Attaching a wire to an electrical terminal

Country Status (1)

Country Link
GB (1) GB2184614A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB270110A (en) * 1926-06-16 1927-05-05 Louis Henry Reid Improvements in or relating to the coupling or connection of electrical wires and the like
GB400669A (en) * 1932-04-02 1933-11-02 Archibald Parker Welch Improvements in and relating to the terminals of accumulators, batteries and the like
GB610286A (en) * 1946-04-05 1948-10-13 Marconi Wireless Telegraph Co Improvements in cable termination devices
GB673907A (en) * 1948-09-17 1952-06-11 British Thomson Houston Co Ltd Improvements in and relating to electric contact terminals
US3772638A (en) * 1972-07-13 1973-11-13 Ark Les Switch Corp Wire connector
GB1396774A (en) * 1972-02-01 1975-06-04 Blake L R Electrical connectors
US4455057A (en) * 1981-12-21 1984-06-19 Thomas & Betts Corporation Insulation piercing terminal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB270110A (en) * 1926-06-16 1927-05-05 Louis Henry Reid Improvements in or relating to the coupling or connection of electrical wires and the like
GB400669A (en) * 1932-04-02 1933-11-02 Archibald Parker Welch Improvements in and relating to the terminals of accumulators, batteries and the like
GB610286A (en) * 1946-04-05 1948-10-13 Marconi Wireless Telegraph Co Improvements in cable termination devices
GB673907A (en) * 1948-09-17 1952-06-11 British Thomson Houston Co Ltd Improvements in and relating to electric contact terminals
GB1396774A (en) * 1972-02-01 1975-06-04 Blake L R Electrical connectors
US3772638A (en) * 1972-07-13 1973-11-13 Ark Les Switch Corp Wire connector
US4455057A (en) * 1981-12-21 1984-06-19 Thomas & Betts Corporation Insulation piercing terminal

Also Published As

Publication number Publication date
GB8531736D0 (en) 1986-02-05

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Legal Events

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