EP0797341A1 - Pushbutton unit with a viewing window for cards identifying the users of internal extensions - Google Patents

Pushbutton unit with a viewing window for cards identifying the users of internal extensions Download PDF

Info

Publication number
EP0797341A1
EP0797341A1 EP96201656A EP96201656A EP0797341A1 EP 0797341 A1 EP0797341 A1 EP 0797341A1 EP 96201656 A EP96201656 A EP 96201656A EP 96201656 A EP96201656 A EP 96201656A EP 0797341 A1 EP0797341 A1 EP 0797341A1
Authority
EP
European Patent Office
Prior art keywords
pushbutton unit
cards
pushbutton
intercom
internal extensions
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Withdrawn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
EP96201656A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ernesto Santini
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.)
BTicino SpA
Original Assignee
BTicino 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 BTicino SpA filed Critical BTicino SpA
Publication of EP0797341A1 publication Critical patent/EP0797341A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks

Definitions

  • This invention relates to a pushbutton unit, of flush-mounted or wall-resting type, in particular for external stations of intercom and video-intercom systems.
  • Pushbutton units for external stations of intercom and video-intercom systems consisting of a frame (flush-mounted in the wall or wall-resting), covered with a front plate housing the name-strips and the pushbuttons for calling the various floors.
  • Pushbutton units of sectional structure consisting of modular elements inserted directly into the frames of flush-mounted boxes; the modular elements are provided with a terminal block, lighting members, a series of pushbuttons, a series of name-strip carriers accessible from the outside, and perspex strips on which to engrave names or for containing cards on which said names are written.
  • the pushbutton unit which is housed in the external station of the system, is divided into various modules, each of which, depending on the version, comprises a variable number of call pushbuttons and relative name-strips.
  • An object of the present invention is to obviate the aforesaid drawbacks by providing a pushbutton unit, of the flush-mounted or wall-resting type, for external stations of intercom and video-intercom systems, which within one and the same structure combines the advantages deriving from the modularity of the electrical and electronic operating components with substantial simplicity in assembling the circuits, and essentiality in dimensioning the architecture for strength, in order to discourage acts of vandalism or tampering attempts.
  • a further object of the present invention is to provide a pushbutton unit having a structure which is of pleasant appearance while at the same time ensuring operability, operating life and reliability.
  • a further object of the invention is to provide a pushbutton unit which simplifies and facilitates the operations required of the caller in calling the required internal extension appliance.
  • a further object of the invention is to provide a pushbutton unit of simple and economical construction, without the use of complex or costly techniques.
  • the pushbutton unit comprises a front plate presenting various functional modules corresponding to the various versions available, such as stations for audio calls and/or telecameras for video filming, modules with a house plate or street number, operating pushbuttons for system resources and phonics with nameplates, and luminous indicating devices.
  • a single call pushbutton is provided for the various extension devices, together with a rectangular window covered with glass or another transparent material through which the names (or identification numbers) of the users of the internal extensions can be read, and which slide by, one at a time, on operating a portion of a knurled or toothed wheel projecting to the outside of the plate and proceeding snapwise.
  • the labels carrying the names or identification numbers of the users of the internal extensions connected to the pushbutton unit are located on a rotary drum, rigid with the call pushbutton and with an electrical change-over switch which connects the selected internal extension to the external station.
  • the reference numeral 30 indicates overall the pushbutton unit in the modular version for flush-mounting or wall-resting
  • 10 indicates the front plate
  • 20 indicates the glass or transparent plastic-covered window through which the name or identification number of the user of the desired internal extension P is visible.
  • Said name or number is reproduced on the card 22.
  • the reference numeral 32 indicates the video module of the pushbutton unit 30, comprising the image filming telecamera 34, the reference numeral 35 indicates the audio module with loudspeaker, and 36 indicates the house plate carrying the street number of the condominium using the video-intercom system.
  • the reference numeral 37 indicates a hole positioned in correspondence with the microphone and usually protected from the action of atmospheric agents, and 31 indicates a single pushbutton for calling the internal extensions P and illuminated from the interior in the case of insufficient external light.
  • a rotary drum 25 carrying the cards 22 adjacent to each other in the longitudinal direction, on the lateral surface of the drum 25.
  • the drum 25 is rigid, via a pin 26, at one end with an electrical change-over switch 27 connected to each internal extensions P, according to the position assumed, and at the other end with a disc 28 provided with surface knurling 29 or teeth, and which can be operated manually from the outside via the aperture 38 in the plate 10.
  • 33 indicates a lamp, or an indicating LED, which illuminates the card 22 via the window 20 in the case of insufficient light
  • V indicates a call signal or voltage present between the terminals A and B at the input of the electrical circuit for calling the internal extensions P.
  • the drum 25 is rotated from the outside by the caller at the pushbutton unit 30, by acting on the disc 28 via the aperture 38 provided in the plate 10.
  • the knurling 29 on the surface of the disc 28 enables the finger to act on the disc 28.
  • This action via the pin 26, results in stepwise snap rotation of the drum 25 (each step corresponds to one name or identification number of each of the internal extensions P) and the simultaneous switching-over of the electrical switch 27, which connects to the pushbutton unit 30 that internal extension P corresponding to the name (or identification number) on the card 22, which appears through the window 20.
  • the knurling 29 provided on the surface of the disc 28 can be replaced by a series of teeth projecting from the aperture 38, so that the caller can engage with one finger the space between one tooth and the next and hence rotate the drum 25, and with it the cards 22.
  • the number of cards 22 depends on the measured area of the lateral surface of the cylinder forming the drum 25 (this measurement must take account only of the fact that the drum is housed within the module 40 in the case of flush-mounting, or within the wall in the case of wall-resting) and, obviously, on the width of the card 22.
  • the single pushbutton 31 (also located on the plate 10) is pushed to operate the warning bell situated in the apartment of the user specified by the name or number visible through the window 20.
  • the pushbutton unit 30 is constructed of metal resistant to impact, to the passage of time and to inclement weather, and has a structure which preserves good appearance, operability and reliability, in that there are only a small number of internal electrical contacts compared with the known art (there is only one call pushbutton for all the internal extensions P connected to the pushbutton unit 30), the electrical contacts relative to the cards 22 being self-cleaning by rotation.
  • the number of internal extensions P which can be connected to the pushbutton unit 30 depends only on the dimensions of the casing of the module 40, which contains the rotary drum 25.

Landscapes

  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)
EP96201656A 1996-03-20 1996-06-13 Pushbutton unit with a viewing window for cards identifying the users of internal extensions Withdrawn EP0797341A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI000547A IT1283546B1 (it) 1996-03-20 1996-03-20 Pulsantiera con finestra di lettura dei cartellini di identificazione degli utenti dei derivati interni
ITMI960547 1996-03-20

Publications (1)

Publication Number Publication Date
EP0797341A1 true EP0797341A1 (en) 1997-09-24

Family

ID=11373709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96201656A Withdrawn EP0797341A1 (en) 1996-03-20 1996-06-13 Pushbutton unit with a viewing window for cards identifying the users of internal extensions

Country Status (2)

Country Link
EP (1) EP0797341A1 (enrdf_load_stackoverflow)
IT (1) IT1283546B1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1111749A3 (de) * 1999-12-23 2003-10-15 secuPorta Gesellschaft für Sicherheitstechnik mbH Modulare Rechnervorrichtung zur Installation in einer Unterputzdose

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978468A (en) * 1974-11-11 1976-08-31 Robert F. Moore Intercom call signaling mechanism
EP0198411A2 (de) * 1985-04-16 1986-10-22 Dierauf Industrie Elektronik GmbH Klingelanläutevorrichtung
FR2590100A1 (fr) * 1985-11-07 1987-05-15 Rhone Entreprise Antenne Selecteur pour systeme d'intercommunication
EP0245709A1 (de) * 1986-05-12 1987-11-19 Siemens Aktiengesellschaft Haus- und Personenrufanlage mit Namensfeld

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978468A (en) * 1974-11-11 1976-08-31 Robert F. Moore Intercom call signaling mechanism
EP0198411A2 (de) * 1985-04-16 1986-10-22 Dierauf Industrie Elektronik GmbH Klingelanläutevorrichtung
FR2590100A1 (fr) * 1985-11-07 1987-05-15 Rhone Entreprise Antenne Selecteur pour systeme d'intercommunication
EP0245709A1 (de) * 1986-05-12 1987-11-19 Siemens Aktiengesellschaft Haus- und Personenrufanlage mit Namensfeld

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1111749A3 (de) * 1999-12-23 2003-10-15 secuPorta Gesellschaft für Sicherheitstechnik mbH Modulare Rechnervorrichtung zur Installation in einer Unterputzdose

Also Published As

Publication number Publication date
ITMI960547A0 (enrdf_load_stackoverflow) 1996-03-20
ITMI960547A1 (it) 1997-09-20
IT1283546B1 (it) 1998-04-22

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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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Effective date: 19990316