US2701347A - Electrical socket having a movable cover - Google Patents

Electrical socket having a movable cover Download PDF

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Publication number
US2701347A
US2701347A US387453A US38745353A US2701347A US 2701347 A US2701347 A US 2701347A US 387453 A US387453 A US 387453A US 38745353 A US38745353 A US 38745353A US 2701347 A US2701347 A US 2701347A
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US
United States
Prior art keywords
socket
slots
tubes
cover plate
plates
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.)
Expired - Lifetime
Application number
US387453A
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English (en)
Inventor
Davidsson Tage Arnold
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
Application granted granted Critical
Publication of US2701347A publication Critical patent/US2701347A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4534—Laterally sliding shutter
    • 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
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart

Definitions

  • the present invention relates to electrical pin-andsocket couplings of the kind provided with a cover plate situated in front of a pair of socket tubes adapted to receive the pins of a plug and provided with openings registering with the socket tubes, and in which there is provided a movable spring-actuated shutter mechanism behind the cover plate and adapted to uncover the socket tubes by being simultaneously actuated on the insertion of the two plug pins.
  • the object of devices of this character is to prevent children and others from making contact with live parts of the coupling.
  • the object of the present invention is to overcome this disadvantage, and said invention is broadly characterised in that the openings in the cover plate consist of elongated parallel slots each having one end in register with one of the socket tubes, the shutter mechanism being so disposed in relation to the slots, that it is brought to a position uncovering the socket tubes by moving the plug pins along the slots in a direction towards the ends thereof which are disposed over the socket tubes.
  • Figure 1 shows a front view of a socket coupling according to the invention with the shutter mechanism in the safety position
  • Figure 3 is a view mainly corresponding to Figure 2 but with the shutter mechanism in a position uncovering the socket tubes;
  • Figure 4 is a cross section through the device along the line IV--IV in Figure 2, and
  • Figure 5 is a perspective view of a detail of the shutter mechanism.
  • the base plate carrying the socket tubes is not shown in the drawing and can be of any suitable design.
  • FIG. 1 denotes a cover plate securable to a base plate by means of screws 2 and provided on its front face with a circular recess 3, the bottom of which is pierced with two elongated, parallel slots 4 and 5, each having one end in register with one of the socket tubes 6, 6a (indicated by dotted lines in Figure 4).
  • two similar shutters 7 and 7a respectively, which are slidable in a direction perpendicular to the axis of the slots 4, 5.
  • the shutters consist of thin U-shaped plates with parallel shanks 9, l0 and 9a, 10a respectively of unequal length, of which the longer 9 (9a) is obliquely cut off at its free 2,701,347 Patented Feb. 1, 1955 Ice end so as to form a slopping edge 11 and 11a respectively.
  • the bases and short shanks of the shutters overlap each other and are guided by opposite walls 12 and 12:: respectively, of the recess A.
  • Each shutter is pressed by a spring 13 and 13a respectively, which normally hold the shutters in the position shown in Figures 1 and 2 in which position the shank 9 of the shutter 7 covers the socket tube 6 and the shank 10 of the same shutter covers the socket tube 6a, while the shanks 9a and 10a of the shutter 7a in a similar way also cover the socket tubes.
  • the invention is not limited to the embodiment described above and shown in the drawing but may be varied in detail without departing from the spirit of it.
  • the shutters may be pivotally mounted instead of slidable.
  • An improvement in cover plates for electrical plug and socket couplings wherein said socket has tubes for receiving pins of said plug comprising a cover plate having elongated substantially parallel slots positioned for having one end thereof registering with the tubes of said socket, when said cover plate is mounted thereon, a pair of plates each slidably mounted on said cover plate for movement substantially parallel to said cover plate laterally of said slots, each of said plates having a shoulder extending from an end thereof, resilient means tending to position said plates covering the tube registering portion of said slots with each shoulder extending diagonally of one of said slots for being engaged by said plug pins when moving longitudinally of said slots whereby said plates are moved from their tube covering position.

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  • Connector Housings Or Holding Contact Members (AREA)
US387453A 1952-12-23 1953-10-21 Electrical socket having a movable cover Expired - Lifetime US2701347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE316003X 1952-12-23

Publications (1)

Publication Number Publication Date
US2701347A true US2701347A (en) 1955-02-01

Family

ID=20307730

Family Applications (1)

Application Number Title Priority Date Filing Date
US387453A Expired - Lifetime US2701347A (en) 1952-12-23 1953-10-21 Electrical socket having a movable cover

Country Status (6)

Country Link
US (1) US2701347A (US06168776-20010102-C00041.png)
BE (1) BE524383A (US06168776-20010102-C00041.png)
CH (1) CH316003A (US06168776-20010102-C00041.png)
FR (1) FR1086683A (US06168776-20010102-C00041.png)
GB (1) GB732027A (US06168776-20010102-C00041.png)
NL (1) NL83345C (US06168776-20010102-C00041.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129581B (de) * 1959-12-30 1962-05-17 Merten Geb Schaltbare wasserdichte Steckdose
US4379607A (en) * 1980-10-06 1983-04-12 Slater Electric Inc. Shuttered receptacle
US4544219A (en) * 1984-06-01 1985-10-01 Harvey Hubbell Incorporated Shuttered electrical receptacle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1736269A (en) * 1923-09-29 1929-11-19 Lawrence Albert Lynn Separable electrical connecter
GB508415A (en) * 1938-03-30 1939-06-30 Crabtree & Co Ltd J A Improvements in, or relating to, plug-and-socket couplings, combined switch and socket couplings, and similar electrical accessories

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1736269A (en) * 1923-09-29 1929-11-19 Lawrence Albert Lynn Separable electrical connecter
GB508415A (en) * 1938-03-30 1939-06-30 Crabtree & Co Ltd J A Improvements in, or relating to, plug-and-socket couplings, combined switch and socket couplings, and similar electrical accessories

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1129581B (de) * 1959-12-30 1962-05-17 Merten Geb Schaltbare wasserdichte Steckdose
US4379607A (en) * 1980-10-06 1983-04-12 Slater Electric Inc. Shuttered receptacle
US4544219A (en) * 1984-06-01 1985-10-01 Harvey Hubbell Incorporated Shuttered electrical receptacle

Also Published As

Publication number Publication date
CH316003A (de) 1956-09-15
FR1086683A (fr) 1955-02-15
BE524383A (US06168776-20010102-C00041.png)
GB732027A (en) 1955-06-15
NL83345C (US06168776-20010102-C00041.png)

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