GB2086149A - Electrical fittings - Google Patents

Electrical fittings Download PDF

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Publication number
GB2086149A
GB2086149A GB8130691A GB8130691A GB2086149A GB 2086149 A GB2086149 A GB 2086149A GB 8130691 A GB8130691 A GB 8130691A GB 8130691 A GB8130691 A GB 8130691A GB 2086149 A GB2086149 A GB 2086149A
Authority
GB
United Kingdom
Prior art keywords
groove
wire
electrical
plug
housing
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
GB8130691A
Other versions
GB2086149B (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.)
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 GB8130691A priority Critical patent/GB2086149B/en
Publication of GB2086149A publication Critical patent/GB2086149A/en
Application granted granted Critical
Publication of GB2086149B publication Critical patent/GB2086149B/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
    • H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
    • 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
    • H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
    • 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

Abstract

An electrical power plug 1 has a housing 2 which is provided with a built-in wire-stripping means 4. The wire-stripping means 4 comprises a groove 5, and a cutting blade 6 extending at right-angles thereto. Insulation may be stripped from a conductor simply by laying it in the groove 5 and drawing it through the groove, over the blade 6. <IMAGE>

Description

SPECIFICATION Electrical fittings This invention relates to electrical fittings, and is particularly although not exclusively concerned with domestic power plugs.
Fitting or replacing a domestic power plug is an every day experience. However, for many people it is a difficult task, and various proposals have been made in the past to make easier the job of securing conductors to terminals within a plug.
However, one of the operations that most often presents difficulty is that of wire stripping -- i.e.
removing the insulation from an electrical conductor.
Preferred embodiments of the present invention aim to provide electric power plugs which may be improved in this respect.
More generally, according to a first aspect of the present invention, there is provided an electrical fitting having a housing and wirestripping means provided thereon.
Preferably, at least part of the wire stripping means is formed integrally with the housing. The wire-stripping means preferably comprises a wirereceiving groove and a cutting blade extending transversely of the groove. The groove may be formed in the housing, and the blade may be substantially flush with the mouth of the groove.
The groove and the blade preferably extend substantially at right angles to one another.
The wire-stripping means may be provided on a removable cap of the plug. Alternatively, it may be provided on the underside of a base portion of the plug, from which underside electrical connector pins of the plug project.
For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying diagrammatic drawing, the single of which is a perspective view of a domestic power plug.
The illustrated power plug 1 comprises a housing 2, within which electrical terminals are housed. The electrical terminals and their details are not important to an understanding of the present invention, and therefore are not shown.
Electrical connector pins 3 project from and underside of a base portion of the plug 1.
A wire stripping means 4 is provided on a cap portion of the housing 2. It comprises a groove 5 formed integrally in the housing 2, and a metal cutting blade 6 which extends substantially at right angles to the groove 5, and has a cutting edge which is substantially flush with the mouth of the groove 5 and the cap surface of the housing 2.
In use, a user simply has to cut the insulated conductors of a cable to their required lengths, and then lay each insulated conductor in turn in the groove 5. Whilst the insulated conductor is held gently in the groove 5, it is then pulled downwardly (as seen in the Figure) out of the groove 5, whereupon the cutting blade 6 engages the insulation on the conductor, which is removed during the movement of the conductor. Thus, it may be appreciated that the correct amount of insulation may be removed from a conductor in a simple and effective manner, whereby a user can proceed quickly to connect the conductors to the terminals of the plug 1.
The illustrated form of wire-stripping means 4 is particularly simple and effective, but alternative means may be provided if desired. For example, cutting blades arranged in different dispositions (such as inclined V-formation) may be employed.
Instead of providing the wire-stripping means 4 on the cap of the housing 2, it'may be provided on the underside of the base portion of the plug 1, adjacent the connector pins 3, provided that it is sufficiently spaced therefrom. In such a way, it can be ensured that the wire-stripping means 4 is useable only when the plug 1 is withdrawn from a socket.
It may be appreciated that a wire-stripping means such as 4 may be provided on any electrical fitting, although it is most likely to be of most advantage with electrical plugs.
1. An electrical fitting having a housing and wire-stripping means provided thereon.
2. An electrical fitting according to Claim 1, wherein at least part of the wire-stripping means is formed integrally with the housing.
3. An electrical fitting according to Claim 1 or 2, wherein the wire-stripping means comprises a wire-receiving groove and a cutting blade extending transversely of the groove.
4. An electrical fitting according to Claims 2 and 3, wherein said groove is formed in the housing.
5. An electrical fitting according to Claim 3 or 4, wherein said blade is substantially flush with the mouth of the groove.
6. An electrical fitting according to Claim 3, 4 or 5, wherein the groove and said blade extend substantially at right angles to one another.
7. An electrical fitting according to any preceding claim, being an electric power plug.
8. An electrical fitting according to Claim 7, wherein the wire-stripping means is provided on a cap of the plug.
9. An electrical fitting according to Claim 7, wherein the wire-stripping means is provided on the underside of a base portion of the plug, from which underside electrical connector pins project.
10. An electrical fitting substantially as hereinbefore described with reference to the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (10)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Electrical fittings This invention relates to electrical fittings, and is particularly although not exclusively concerned with domestic power plugs. Fitting or replacing a domestic power plug is an every day experience. However, for many people it is a difficult task, and various proposals have been made in the past to make easier the job of securing conductors to terminals within a plug. However, one of the operations that most often presents difficulty is that of wire stripping -- i.e. removing the insulation from an electrical conductor. Preferred embodiments of the present invention aim to provide electric power plugs which may be improved in this respect. More generally, according to a first aspect of the present invention, there is provided an electrical fitting having a housing and wirestripping means provided thereon. Preferably, at least part of the wire stripping means is formed integrally with the housing. The wire-stripping means preferably comprises a wirereceiving groove and a cutting blade extending transversely of the groove. The groove may be formed in the housing, and the blade may be substantially flush with the mouth of the groove. The groove and the blade preferably extend substantially at right angles to one another. The wire-stripping means may be provided on a removable cap of the plug. Alternatively, it may be provided on the underside of a base portion of the plug, from which underside electrical connector pins of the plug project. For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying diagrammatic drawing, the single of which is a perspective view of a domestic power plug. The illustrated power plug 1 comprises a housing 2, within which electrical terminals are housed. The electrical terminals and their details are not important to an understanding of the present invention, and therefore are not shown. Electrical connector pins 3 project from and underside of a base portion of the plug 1. A wire stripping means 4 is provided on a cap portion of the housing 2. It comprises a groove 5 formed integrally in the housing 2, and a metal cutting blade 6 which extends substantially at right angles to the groove 5, and has a cutting edge which is substantially flush with the mouth of the groove 5 and the cap surface of the housing 2. In use, a user simply has to cut the insulated conductors of a cable to their required lengths, and then lay each insulated conductor in turn in the groove 5. Whilst the insulated conductor is held gently in the groove 5, it is then pulled downwardly (as seen in the Figure) out of the groove 5, whereupon the cutting blade 6 engages the insulation on the conductor, which is removed during the movement of the conductor. Thus, it may be appreciated that the correct amount of insulation may be removed from a conductor in a simple and effective manner, whereby a user can proceed quickly to connect the conductors to the terminals of the plug 1. The illustrated form of wire-stripping means 4 is particularly simple and effective, but alternative means may be provided if desired. For example, cutting blades arranged in different dispositions (such as inclined V-formation) may be employed. Instead of providing the wire-stripping means 4 on the cap of the housing 2, it'may be provided on the underside of the base portion of the plug 1, adjacent the connector pins 3, provided that it is sufficiently spaced therefrom. In such a way, it can be ensured that the wire-stripping means 4 is useable only when the plug 1 is withdrawn from a socket. It may be appreciated that a wire-stripping means such as 4 may be provided on any electrical fitting, although it is most likely to be of most advantage with electrical plugs. CLAIMS
1. An electrical fitting having a housing and wire-stripping means provided thereon.
2. An electrical fitting according to Claim 1, wherein at least part of the wire-stripping means is formed integrally with the housing.
3. An electrical fitting according to Claim 1 or 2, wherein the wire-stripping means comprises a wire-receiving groove and a cutting blade extending transversely of the groove.
4. An electrical fitting according to Claims 2 and 3, wherein said groove is formed in the housing.
5. An electrical fitting according to Claim 3 or 4, wherein said blade is substantially flush with the mouth of the groove.
6. An electrical fitting according to Claim 3, 4 or 5, wherein the groove and said blade extend substantially at right angles to one another.
7. An electrical fitting according to any preceding claim, being an electric power plug.
8. An electrical fitting according to Claim 7, wherein the wire-stripping means is provided on a cap of the plug.
9. An electrical fitting according to Claim 7, wherein the wire-stripping means is provided on the underside of a base portion of the plug, from which underside electrical connector pins project.
10. An electrical fitting substantially as hereinbefore described with reference to the accompanying drawing.
GB8130691A 1980-10-10 1981-10-12 Electrical fittings Expired GB2086149B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8130691A GB2086149B (en) 1980-10-10 1981-10-12 Electrical fittings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8032701 1980-10-10
GB8130691A GB2086149B (en) 1980-10-10 1981-10-12 Electrical fittings

Publications (2)

Publication Number Publication Date
GB2086149A true GB2086149A (en) 1982-05-06
GB2086149B GB2086149B (en) 1985-09-04

Family

ID=26277169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8130691A Expired GB2086149B (en) 1980-10-10 1981-10-12 Electrical fittings

Country Status (1)

Country Link
GB (1) GB2086149B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991016750A1 (en) * 1990-04-18 1991-10-31 Rotacon Limited Improved wire stripper
AP278A (en) * 1990-12-18 1993-07-04 Peter Balfour Dugmore An accessory for an electrical fitting.
GB2284056A (en) * 1993-11-16 1995-05-24 John Henderson An electrical plug wiring jig

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991016750A1 (en) * 1990-04-18 1991-10-31 Rotacon Limited Improved wire stripper
AP278A (en) * 1990-12-18 1993-07-04 Peter Balfour Dugmore An accessory for an electrical fitting.
GB2284056A (en) * 1993-11-16 1995-05-24 John Henderson An electrical plug wiring jig

Also Published As

Publication number Publication date
GB2086149B (en) 1985-09-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19971012