US3335248A - Threepole-switch for wall mounting with contact dampening means - Google Patents

Threepole-switch for wall mounting with contact dampening means Download PDF

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Publication number
US3335248A
US3335248A US540380A US54038066A US3335248A US 3335248 A US3335248 A US 3335248A US 540380 A US540380 A US 540380A US 54038066 A US54038066 A US 54038066A US 3335248 A US3335248 A US 3335248A
Authority
US
United States
Prior art keywords
lever
switch
housing
contact
threepole
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
US540380A
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English (en)
Inventor
Bassani Ermanno
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Individual
Original Assignee
Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3335248A publication Critical patent/US3335248A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/12—Distribution boxes; Connection or junction boxes for flush mounting
    • H02G3/123—Distribution boxes; Connection or junction boxes for flush mounting in thin walls
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/24—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button with two operating positions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • H02B1/044—Mounting through openings

Definitions

  • a switch for wall mounting comprising a housing, at least one fixed contact, at least one movable contact in the housing movable in and out of engagement with the fixed contact and provided with dampening means to prevent rebounding of the movable contact during engagement with the fixed contact.
  • This invention relates to a threepole-switch conceived, built and sized so as to be set on a small frame to be placed under the wall plaster, in substitution for, or in combination with other such electric devices new or already used in the same manner, as, f.i., unipolar-switches, bells, sockets and the like.
  • the object of this invention is to obtain a threepoleswitch especially adapted for supporting electric powers up to four and five kw., of reduced size, so as to be set into a wall, with the system comprising other such electric devices.
  • a further object of this invention is to provide a threepole-switch of the aforesaid kind suitable for large series manufacturing at low cost, whereby the switch although of reduced size, it is in condition to ensure a quick opening and closing of its contacts, without any rebounding so as to assure a long life of the threepole-switch.
  • the threepole-switch comprises an external casing of such size so that it may be mounted along side of further electric devices and set-up together with them onto a supporting frame for their enclosing into a wall.
  • a further characteristic of this invention is that the mobile contacts are supported by elastic, arcuated blades for conducting the electric current, and fastened to small levers, whereon an insulating member is due to act with the help of appropriate compression springs after it has acquired a certain speed, thus ensuring a clear and rapid opening of the contacts, and consenting to the closing of the contacts, due to the action of said springs, together with the elastic contact holders, they compose an elastic damping system which impedes any rebounding of the mobile contacts, when they connect with the fixed contacts.
  • Still a further characteristic of the invention is that the fixed contacts which are located adjacent each other are separated from one another by appropriate electrically insulating walls.
  • Another characteristic is that in the rear portion of the casing of the threepole-switch, there are provided, on opposed rows, the terminals for the connection of the electric conductors, said terminals being separated and protected by insulating walls.
  • FIGURE 1 shows the threepole-switch with a small supporting frame, whereon it is set up
  • FIGURES 2 and 3 represent partially in cross section, the disposition and the movement of the mobile contacts
  • FIGURE 4 represents in perspective view the threepoleswitch
  • FIGURE 5 is a perspective view of the threepole-switch in combination with other electric devices to be enclosed within a wall;
  • FIGURE 6 shows the setting-up of the threepole-switch on a supporting frame for the disposition of a unique device.
  • the switch according to the invention is constituted by a casing 1 having a rectangular cross section, presenting a front lever 2 for control purpose, projecting from said casing and being surrounded by a fastening band 3 connected to said casing by means of clasping means 4 encompassing projections 5 protruding from said casing.
  • Said clasping band 3 is provided at its upper and lower portions with small tongues 6 and 7, by means of which it is fastened on a small supporting frame 8 of known kind, to support electric devices of various nature.
  • Said small frame shows one or more small windows or apertures 9 set next to each other.
  • each aperture 9 there is provided a lower split 10, wherein tongue 7 is introduced, and an upper split 11, wherein tongue 6 is fitted and locked by means a wedge like tongue 12 conveniently bent by means of an appropriate tool. Fastening of said clasping band 3 in the said manner will result that lever 2 projects through the aperture 9 and from the window of a plate 13 (FIGURES l and 5), which has so many small windows as said small frame and coinciding with the windows of the latter.
  • the represented devices are (FIGURE 5) a bell contact 14, a simple electric switch 15 and a socket 16, to which a small plug 17 is connected.
  • lever 2 instantly displaces either to the one -or the other direction a rigid member 18 by means of a catch per se known.
  • the member 18 has the function to move the movable contacts of the threepole-switch, only two of which are visible on the drawing.
  • These movable contacts 19 are supported by elastic arcuated blades 20, respectively integral with small levers 21 fulcrumed at 22, and provided at their upper portions with projections to interfere with the aforesaid member 18.
  • the opening and closing of the threepole-switch will be thus free of any sparking which could provoke welding or destroying of the contacts in short time.
  • the fixed contacts are respectively separated by electrically insulating walls 26, which protect the contacts against the formation of electric arcs, in particular during the opening step.
  • the fixed contacts and the movable contacts are connected to terminals 27', 28, respectively, to which the electric Wires are attached. Said terminals are separated from each other by means of separating walls 29, whereby said contacts are electrically and mechanically insulated.
  • FIGURE 6 illustrates how a threepole-switch can be installed as single device.
  • the small frame 30 used will receive the form as shown in FIGURE 6, that is with a single window or aperture for the passage of lever 2, and with means for fastening to said small frame 30 by means of a plate or cover of adequate sizes.
  • Said small frame is also manufactured with slits 10, 11 for the insertion of the small tongues 6, 7, respectively.
  • a switch comprising, in combination, a housing; at least one fixed contact in said housing; at least one movable contact means in said housing and comprising a lever pivotally mounted at one end in said housing, an arcuate blade integrally connected at one end to said lever inter mediate the ends of the latter and projecting therefrom towards said fixed contact, and a contact portion fixed to the other end of said blade, said lever being turnable between an open position in which said contact portion is spaced from said fixed contact and a closed position in which said contact portion engages said fixed contact; biasing means cooperating with said lever and being biassed so as to tend to move the latter to said closed position; and operating means extending from the exterior of the housing into the latter and including a member cooperating with the other end of said lever and being movable from an active position engaging said other end of said lever to move the latter against the force of said biasing means to said open position, and an inactive position spaced from said other end of said lever so that 4 the latter will rapidly move under the influence of said biasing means to said closed position, where
  • said biasing means comprises a compression spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Power Engineering (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Tumbler Switches (AREA)
US540380A 1965-04-12 1966-04-05 Threepole-switch for wall mounting with contact dampening means Expired - Lifetime US3335248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT813865 1965-04-12

Publications (1)

Publication Number Publication Date
US3335248A true US3335248A (en) 1967-08-08

Family

ID=11125926

Family Applications (1)

Application Number Title Priority Date Filing Date
US540380A Expired - Lifetime US3335248A (en) 1965-04-12 1966-04-05 Threepole-switch for wall mounting with contact dampening means

Country Status (6)

Country Link
US (1) US3335248A (ja)
BE (1) BE679038A (ja)
ES (1) ES325372A1 (ja)
FR (1) FR1515834A (ja)
GB (1) GB1127526A (ja)
NL (1) NL6604845A (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471670A (en) * 1967-12-26 1969-10-07 Slater Electric Inc Electrical switch
US3562468A (en) * 1968-10-30 1971-02-09 Gen Electric Switch mounting means
US3670118A (en) * 1969-01-17 1972-06-13 Lucas Industries Ltd Windscreen wiper motors
US3699236A (en) * 1970-05-20 1972-10-17 Nihon Kaiheiki Ind Co Ltd Switch flourish plate
US3964705A (en) * 1970-12-23 1976-06-22 Bassani S.P.A. Frame for the mounting of interchangeable electrical units
US5457286A (en) * 1991-12-13 1995-10-10 Flasz; Igor Face plate assembly for electrical receptacle
EP0750371A2 (en) * 1995-06-22 1996-12-27 Panduit Corporation Connector mounting receptacles
US20060237616A1 (en) * 2005-04-11 2006-10-26 Tyco Electronic Corporation Switch package assembly with mounting base adapter

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2132820B1 (ja) * 1971-04-10 1976-08-06 Bassani Spa
DE3139701C2 (de) * 1981-10-06 1985-02-14 Sds-Elektro Gmbh, 8024 Deisenhofen Schalter mit einem Schaltergehäuse und einer Befestigungsvorrichtung für das Schaltergehäuse
GB2134723B (en) * 1983-02-07 1986-09-03 Lee Long River Mounting push-in electricity supply devices
GB9300338D0 (en) * 1993-01-09 1993-03-03 Mk Electric Ltd Mounting electrical accessories
GB2328316B (en) * 1997-08-12 2001-09-12 Otter Controls Ltd Improvements relating to thermal controls for electric heating elements
GB2351845A (en) * 1999-07-07 2001-01-10 Schneider Electric Ltd Mounting of circuit breaking devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788869A (en) * 1955-01-21 1957-04-16 Chicago Railway Equipment Co Railway brake gear safety structure
US2969418A (en) * 1958-03-03 1961-01-24 Gen Electric Interchangeable wiring devices
FR1274117A (fr) * 1960-11-22 1961-10-20 Bassani Spa Organes de serrage sans jeu pour le fixage aux châssis de support de dispositifs électriques interchangeables à murer
US3172972A (en) * 1963-05-02 1965-03-09 Arrow Hart & Hegeman Electric Snap-action electrical switch with contact dampening means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2788869A (en) * 1955-01-21 1957-04-16 Chicago Railway Equipment Co Railway brake gear safety structure
US2969418A (en) * 1958-03-03 1961-01-24 Gen Electric Interchangeable wiring devices
FR1274117A (fr) * 1960-11-22 1961-10-20 Bassani Spa Organes de serrage sans jeu pour le fixage aux châssis de support de dispositifs électriques interchangeables à murer
US3172972A (en) * 1963-05-02 1965-03-09 Arrow Hart & Hegeman Electric Snap-action electrical switch with contact dampening means

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471670A (en) * 1967-12-26 1969-10-07 Slater Electric Inc Electrical switch
US3562468A (en) * 1968-10-30 1971-02-09 Gen Electric Switch mounting means
US3670118A (en) * 1969-01-17 1972-06-13 Lucas Industries Ltd Windscreen wiper motors
US3699236A (en) * 1970-05-20 1972-10-17 Nihon Kaiheiki Ind Co Ltd Switch flourish plate
US3964705A (en) * 1970-12-23 1976-06-22 Bassani S.P.A. Frame for the mounting of interchangeable electrical units
US5457286A (en) * 1991-12-13 1995-10-10 Flasz; Igor Face plate assembly for electrical receptacle
EP0750371A2 (en) * 1995-06-22 1996-12-27 Panduit Corporation Connector mounting receptacles
US5672074A (en) * 1995-06-22 1997-09-30 Panduit Corp. Connector mounting receptacles
US5738539A (en) * 1995-06-22 1998-04-14 Caveney; Jack Edward Connector mounting receptacle
EP0750371A3 (en) * 1995-06-22 1998-05-27 Panduit Corporation Connector mounting receptacles
US5766034A (en) * 1995-06-22 1998-06-16 Panduit Corp. Connector mounting receptacles
EP1143576A1 (en) * 1995-06-22 2001-10-10 Panduit Corporation Connector mounting receptacles
US20060237616A1 (en) * 2005-04-11 2006-10-26 Tyco Electronic Corporation Switch package assembly with mounting base adapter
US7642472B2 (en) * 2005-04-11 2010-01-05 Tyco Electronics Corporation Switch package assembly with mounting base adapter

Also Published As

Publication number Publication date
ES325372A1 (es) 1967-01-01
NL6604845A (ja) 1966-10-13
DE1590102B1 (de) 1972-09-14
GB1127526A (en) 1968-09-18
FR1515834A (fr) 1968-03-08
BE679038A (ja) 1966-09-16

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