GB2185645A - Electrical plugs - Google Patents

Electrical plugs Download PDF

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Publication number
GB2185645A
GB2185645A GB08601542A GB8601542A GB2185645A GB 2185645 A GB2185645 A GB 2185645A GB 08601542 A GB08601542 A GB 08601542A GB 8601542 A GB8601542 A GB 8601542A GB 2185645 A GB2185645 A GB 2185645A
Authority
GB
United Kingdom
Prior art keywords
cap
base
edges
plug
flange
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
GB08601542A
Other versions
GB2185645B (en
GB8601542D0 (en
Inventor
J E Mack
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.)
SULLAM S D Ltd
Original Assignee
SULLAM S D Ltd
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 SULLAM S D Ltd filed Critical SULLAM S D Ltd
Priority to GB8601542A priority Critical patent/GB2185645B/en
Publication of GB8601542D0 publication Critical patent/GB8601542D0/en
Publication of GB2185645A publication Critical patent/GB2185645A/en
Application granted granted Critical
Publication of GB2185645B publication Critical patent/GB2185645B/en
Expired 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
    • H01R13/46—Bases; Cases
    • H01R13/502—Bases; Cases composed of different pieces
    • H01R13/512—Bases; Cases composed of different pieces assembled by screw or screws
    • 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
    • H01R2103/00—Two poles
    • 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

Landscapes

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

Abstract

An electrical plug comprises a base (10) and a cap (11) attached to the base, the base (10) being provided with an integral flange (18) which projects beyond the edges of the cap (11) so that this flange (18) is engaged by the fingers of the user in order to pull the plug out of a socket. The cap (11) may be formed with inclined surfaces (26) to prevent it being gripped. <IMAGE>

Description

SPECIFICATION Electrical plugs This invention relates to electrical plugs and its object is to increase the degree of safety.
Plugs are commonly made with a two-part housing one part or base of which carries all the electrical pins and connections while the other part is merely a cap, the two parts being held together by a single screw, and the capsometimes hasaflangeoverhangingthe base which the user uses to pull the plug out ofthe socket. We have found that this construction has a dangerous disadvantage because the pulling force is carried by the metal and plastics screw th reads and continual pulling on the cap can sometimes loosen the screw th reads which may give away and involve the possibility that an inquisitive young child or even an adult may be able to contactthe live connections.
According to the present invention the base is provided with an integral flange which projects beyondthe edges of the cap so that this flange is engaged by the fingers of the user in order to pull the plug out of the socket.
The flange may be provided around the entire edge ofthe base.
The edges of the cap may be spaced slightly from the edges ofthe flanges.
The cap may also be formed with inwardly inclined outer surfaces so that the user cannot pull outthe plug by pulling on the plug.
The invention will now be described by way of example with reference to the accompanying drawings in which: FIGURE lisa plan view ofthe plug, FIGURE 2 an underplan view, FIGURE 3 a rearview, FIGURE 4 a front end view, FIGURE 5 a side view, and FIGURE 6 a second on A-A with the cover raised.
The plug comprises a base 10 and a cap 11 both made of electrically insulating material. The base carries the pins 12 and the electrical connections including a fuse 13. The base is provided with walls 15 at right angles to a base wall 16. The edges ofthe walls 15 are formed with an outstanding flange 18which extends entirely around the edges exceptwherethe conductor cable enters at 20.
The base is recessed at 21 adjacentthe flange 18.
The cap has a top wall 25 connected to walls 26 which are inclined inwardly from its edges so that they cannot be grasped by the user. The edges ofthewals 26 are provided with a rim 29which can engage in the recess 21. The extreme outer edges 22 ofthe walls 26 are spaced as shown at 27 slightly from the external surface oftheilange 18.
The cap is attached to the base by a single screw 30 which enters an apertured boss 31 formed integrally with the cap.
1. An electrical plug having a base and a cap attached to the base, the base being provided with an integral flange which projects beyond the edges of the cap so thatthis flange is engaged by the fingers of the user in orderto pull the plug out of a socket.
2. An electrical plug as claimed in Claim 1,wherein the flange is provided around the entire edge ofthe base.
3. An electrical plug as claimed in Claim 1 or2, wherein the edges of the cap are spaced slightlyfrom edges ofthe flanges.
4. An electrical plug as claimed in Claim 1,2 or3, wherein the cap is formed with inwardly inclined outer surfaces so that the user cannot pull outthe plug by pulling on the cap.
5. An electrical plug substantially as described with reference to the accompanying drawings.
The drawings(s) originally filed was(were) informal and the print here reproduced is taken from a later filed formal copy.
The claims were filed later than the filing date within the period by Rule 25(1) of the Patents Rules 1982.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Electrical plugs This invention relates to electrical plugs and its object is to increase the degree of safety. Plugs are commonly made with a two-part housing one part or base of which carries all the electrical pins and connections while the other part is merely a cap, the two parts being held together by a single screw, and the capsometimes hasaflangeoverhangingthe base which the user uses to pull the plug out ofthe socket. We have found that this construction has a dangerous disadvantage because the pulling force is carried by the metal and plastics screw th reads and continual pulling on the cap can sometimes loosen the screw th reads which may give away and involve the possibility that an inquisitive young child or even an adult may be able to contactthe live connections. According to the present invention the base is provided with an integral flange which projects beyondthe edges of the cap so that this flange is engaged by the fingers of the user in order to pull the plug out of the socket. The flange may be provided around the entire edge ofthe base. The edges of the cap may be spaced slightly from the edges ofthe flanges. The cap may also be formed with inwardly inclined outer surfaces so that the user cannot pull outthe plug by pulling on the plug. The invention will now be described by way of example with reference to the accompanying drawings in which: FIGURE lisa plan view ofthe plug, FIGURE 2 an underplan view, FIGURE 3 a rearview, FIGURE 4 a front end view, FIGURE 5 a side view, and FIGURE 6 a second on A-A with the cover raised. The plug comprises a base 10 and a cap 11 both made of electrically insulating material. The base carries the pins 12 and the electrical connections including a fuse 13. The base is provided with walls 15 at right angles to a base wall 16. The edges ofthe walls 15 are formed with an outstanding flange 18which extends entirely around the edges exceptwherethe conductor cable enters at 20. The base is recessed at 21 adjacentthe flange 18. The cap has a top wall 25 connected to walls 26 which are inclined inwardly from its edges so that they cannot be grasped by the user. The edges ofthewals 26 are provided with a rim 29which can engage in the recess 21. The extreme outer edges 22 ofthe walls 26 are spaced as shown at 27 slightly from the external surface oftheilange 18. The cap is attached to the base by a single screw 30 which enters an apertured boss 31 formed integrally with the cap. CLAIMS
1. An electrical plug having a base and a cap attached to the base, the base being provided with an integral flange which projects beyond the edges of the cap so thatthis flange is engaged by the fingers of the user in orderto pull the plug out of a socket.
2. An electrical plug as claimed in Claim 1,wherein the flange is provided around the entire edge ofthe base.
3. An electrical plug as claimed in Claim 1 or2, wherein the edges of the cap are spaced slightlyfrom edges ofthe flanges.
4. An electrical plug as claimed in Claim 1,2 or3, wherein the cap is formed with inwardly inclined outer surfaces so that the user cannot pull outthe plug by pulling on the cap.
5. An electrical plug substantially as described with reference to the accompanying drawings.
The drawings(s) originally filed was(were) informal and the print here reproduced is taken from a later filed formal copy.
The claims were filed later than the filing date within the period by Rule 25(1) of the Patents Rules 1982.
GB8601542A 1986-01-22 1986-01-22 Electrical plugs Expired GB2185645B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8601542A GB2185645B (en) 1986-01-22 1986-01-22 Electrical plugs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8601542A GB2185645B (en) 1986-01-22 1986-01-22 Electrical plugs

Publications (3)

Publication Number Publication Date
GB8601542D0 GB8601542D0 (en) 1986-02-26
GB2185645A true GB2185645A (en) 1987-07-22
GB2185645B GB2185645B (en) 1989-11-01

Family

ID=10591774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8601542A Expired GB2185645B (en) 1986-01-22 1986-01-22 Electrical plugs

Country Status (1)

Country Link
GB (1) GB2185645B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218865A (en) * 1988-05-06 1989-11-22 Masterpiece Cabinets Limited Plug and socket outlet system
GB2238185A (en) * 1989-10-09 1991-05-22 Haim Hadar Electrical plug
EP0616389A2 (en) * 1993-03-16 1994-09-21 Rutland Gilts Limited Electrical connector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2057792A (en) * 1979-08-18 1981-04-01 Ward Goldstone Ltd Non-rewirable electric plug

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2057792A (en) * 1979-08-18 1981-04-01 Ward Goldstone Ltd Non-rewirable electric plug

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218865A (en) * 1988-05-06 1989-11-22 Masterpiece Cabinets Limited Plug and socket outlet system
GB2218865B (en) * 1988-05-06 1993-06-16 Masterpiece Cabinets Limited Plug and socket and multiway connector using same
GB2238185A (en) * 1989-10-09 1991-05-22 Haim Hadar Electrical plug
GB2238185B (en) * 1989-10-09 1994-05-18 Haim Hadar Electrical plug
AU652921B2 (en) * 1989-10-09 1994-09-15 Haim Hadar Electrical plug
EP0616389A2 (en) * 1993-03-16 1994-09-21 Rutland Gilts Limited Electrical connector
EP0616389A3 (en) * 1993-03-16 1995-02-22 Richard Drewnicki Electrical connector.
US5626495A (en) * 1993-03-16 1997-05-06 Rutland Gilts Limited Screwless connector

Also Published As

Publication number Publication date
GB2185645B (en) 1989-11-01
GB8601542D0 (en) 1986-02-26

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Legal Events

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

Effective date: 20050122