EP0066549A1 - Boîtier pour ouvertures d'accès de prise de courant dans des boîtes de prises électriques multipolaires à grande puissance - Google Patents

Boîtier pour ouvertures d'accès de prise de courant dans des boîtes de prises électriques multipolaires à grande puissance Download PDF

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Publication number
EP0066549A1
EP0066549A1 EP82830104A EP82830104A EP0066549A1 EP 0066549 A1 EP0066549 A1 EP 0066549A1 EP 82830104 A EP82830104 A EP 82830104A EP 82830104 A EP82830104 A EP 82830104A EP 0066549 A1 EP0066549 A1 EP 0066549A1
Authority
EP
European Patent Office
Prior art keywords
coupling
casing
seat
knob
framework
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Withdrawn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
EP82830104A
Other languages
German (de)
English (en)
Inventor
Pierluigi Ranzanigo
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.)
Sarno SpA
Original Assignee
Sarno SpA
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 Sarno SpA filed Critical Sarno SpA
Publication of EP0066549A1 publication Critical patent/EP0066549A1/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the object of the present invention is a casing for access couplings to outlets in multi-pole heavy-duty elec trical outlet casings.
  • Known casings designed to satisfy legal regulations, include a cover that makes a bayonet clamp on the coupling, and sealing on the edge of the coupling using a suitable seal. Since the bayonet clamp components are placed on the side wall of the cover; this must have a circular plant, and likewise for the coupling.
  • This necessity presents, first of all, the disadvantage that the cover cannot be hinged to the box, because hinges would prevent it from opening and closing. Consequently, when it is opened, the cover remains separate from the box, and must be placed in some other area. Often this leads to the cover's being lost, or at least a waste of time in searching for it and mounting it the moment the plug is removed.
  • Another disadvantage comes from the fact that the circular shape required by the cover and the coupling often makes it difficult to joint the box or its cover, as long as the coupoing is circular, since it is impossible to give it a polygonal shape, preferably square or rectangular.
  • the present invention solves these problems, because, it proposes a casing that can have a square or rectangular plan, or take on any polygonal shape, and can be hinged to the box, while it still carries a bayonet closing system and the seal components required by regulations.
  • the advantage is that the.. casing is always connected to the box, and must only be unscrewed and lifted away for the plug to be put in, and that it automatically re-lowers onto the coupling when theeplug is removed, so it can be tightened to seal.
  • the casing object of the invention is characterized by a frame that, on its outside, can take the shape of a polygonal plan; preferably square or rectangular, and carry hinges on one side that connect it to the box so it can be lifted and lowered with respect to the coupling facing the outlet.
  • This framework has, in its center, a circular seat. The bottom of this seat is equipped with two arched circular slots placed opposite each other, that the bayonet coupling hooks on a circular-plan knob that enters this seat go through.
  • the frame also carries a third component that attaches to the box and that constitutes the coupling that the electrical outlet faces, and which externally carries the complementary mechanisms for bayonet tightening of the knob.
  • a seal is mounted on the outer face of the bottom of this seat, and presses against the edge of the coupling formed by the third component. This pressure is achieved by tightening the bayonet coupling.
  • a box for containing a heavy--duty electrical outlet, with or without mechanical interlock switch includes part of bottom 1 that constitutes the actual box itself and a cover 2 that close box 1 along perfect-seal coupling line 3.
  • Knob 4 ' which does not relate to the present invention, and which is the control component for opening or closing a switch placed inside the box which applies or removes current from the electrical outlet, is situated on the top part of the cover.
  • the electrical outlet faces a coupling which is closed by casing 4 when the plug is removed, giving a seal to the plug opening as well, as called for by regulations.
  • the object of the present invention is casing 4, which closes the coupling that the electrical outlet faces.
  • the casing object of the present invention includes main frame 5, which can be shaped, in plan, in a polygon, and particularly in a square or rectangular, so that side walls 6 can follow the same shape in plan.
  • Frame 5 in its center, carries a circular plan seat 7 with two opposed circular slots 9 and 10 on uts bottom 8.
  • Knob 11 also with a circular plan, is destined to be housed in seat 7 .
  • the knob is hollow at the top, and carries diameter bar 14 which serves to operate it.
  • Hooks 12 and 13 are designed to pass through slots 9 and 10 and place themselves below wall 8 of seat 7, as is better illustrated in figure 3.
  • Component 15 is placed below frame 5.
  • This component contains a cylindrical cavity with a diameter slightly greater than that of the corrent outlet, and which constitutes the coupling the outlet itself faces.
  • the external surface of this component has ribs which have at least one helical bottom edge 16, and which communicate with the edge of the cylindrical cavity by diametrically opposed vertical curts 17 and 18, forming complementary tightening components for hooks 12 and 13 of the bayonet clutch seal.
  • Coupling takes place by passing hooks 12 and 13 through slots 9 and 10 so that the hooks remain clamped on frame 5 and, when the cover must be closed on component 15, all that is necessary is to turn knob 11 so that hooks 12 and 13 are in correspondence with cuts 17 and 18, which hooks are then made to slide below these by turning the knob, so that hooks 12 and 13 engage with the helical edges 16, permitting tightening.
  • Seal ring 19 is located below bottom wall 8. The diameter of this ring is such that it presses against circular edge 20 of component 15, so as to create seal between the part of wall 8 inside groove 9 and the opening of component 15 itself.
  • Component 15 is completed by flat support 20, preferential- l y square in plan, equipped with holes 21 at its corners forplacement of screws which clamp said support 20 to sholder 22 presented by cover 2, and consisting of a perime- tral wall that makes opening 23 through which the plug passes.
  • Knob 1 1 is fastened to frame 5 by a screw passing through central hole 24 in bottom 8 of seat 7.
  • the screw extends upwards to engage with a threaded hole, consisting of bush 25 placed in the center of cross member 14 on knob 11, all as illustrated in figure 3.
  • hinges can be placed at the two ends of one side, for example the top horizontal side, which permit the frame to be lifted and tilt up from the box without having to detach it, since the amount of tilt will be sufficient for placement of the plug in the outlet.
  • the casing object of the present invention makes the bayonet tightening components independent of the external shape of the casing itself, so that this exterior can take whatever shape it desires in plan and as illustrated in the figures, and can couple directly to the upper and side walls of the box, constituting a co-planar extension of said walls.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP82830104A 1981-05-19 1982-04-22 Boîtier pour ouvertures d'accès de prise de courant dans des boîtes de prises électriques multipolaires à grande puissance Withdrawn EP0066549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2179381 1981-05-19
IT21793/81A IT1136607B (it) 1981-05-19 1981-05-19 Chiusura per bocchettone di accesso alla presa,nelle cassette per prese di corrente industriali multipolari

Publications (1)

Publication Number Publication Date
EP0066549A1 true EP0066549A1 (fr) 1982-12-08

Family

ID=11186917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830104A Withdrawn EP0066549A1 (fr) 1981-05-19 1982-04-22 Boîtier pour ouvertures d'accès de prise de courant dans des boîtes de prises électriques multipolaires à grande puissance

Country Status (3)

Country Link
EP (1) EP0066549A1 (fr)
ES (1) ES265262Y (fr)
IT (1) IT1136607B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709489A1 (de) * 1997-03-07 1998-09-10 Abb Patent Gmbh Abdeckung für elektrische Installationsgeräte

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE685793C (de) * 1938-06-24 1939-12-23 Paul Jordan Befestigung eines aus Isolierstoff bestehenden Oberteils auf einem Unterteil eines elektrischen Installationsgeraetes
US3131985A (en) * 1962-06-25 1964-05-05 Blonder Tongue Elect Electrical outlet attachment
DE1665099B1 (de) * 1967-01-04 1971-10-07 Aloys Mennekes Elektrotechn Wasserdichte Kragensteckvorrichtung
FR2279304A1 (fr) * 1974-07-17 1976-02-13 Faeam Dispositif de fermeture pour capot de coffret

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE685793C (de) * 1938-06-24 1939-12-23 Paul Jordan Befestigung eines aus Isolierstoff bestehenden Oberteils auf einem Unterteil eines elektrischen Installationsgeraetes
US3131985A (en) * 1962-06-25 1964-05-05 Blonder Tongue Elect Electrical outlet attachment
DE1665099B1 (de) * 1967-01-04 1971-10-07 Aloys Mennekes Elektrotechn Wasserdichte Kragensteckvorrichtung
FR2279304A1 (fr) * 1974-07-17 1976-02-13 Faeam Dispositif de fermeture pour capot de coffret

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELEKTRO-TECHNIK, vol. 47, no. 31, 10th November 1965, page 692, Wurzburg, DE. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19709489A1 (de) * 1997-03-07 1998-09-10 Abb Patent Gmbh Abdeckung für elektrische Installationsgeräte

Also Published As

Publication number Publication date
IT8121793A0 (it) 1981-05-19
ES265262U (es) 1982-12-01
IT1136607B (it) 1986-09-03
ES265262Y (es) 1983-06-01

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LU NL SE

17P Request for examination filed

Effective date: 19830426

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19841002

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RANZANIGO, PIERLUIGI