EP1843371A2 - Clavier à pression longue, en particulier le type clavier de panneau ou similaire - Google Patents

Clavier à pression longue, en particulier le type clavier de panneau ou similaire Download PDF

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Publication number
EP1843371A2
EP1843371A2 EP07005636A EP07005636A EP1843371A2 EP 1843371 A2 EP1843371 A2 EP 1843371A2 EP 07005636 A EP07005636 A EP 07005636A EP 07005636 A EP07005636 A EP 07005636A EP 1843371 A2 EP1843371 A2 EP 1843371A2
Authority
EP
European Patent Office
Prior art keywords
key
keyboard according
keyboard
configuration
section
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Withdrawn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
EP07005636A
Other languages
German (de)
English (en)
Other versions
EP1843371A3 (fr
Inventor
Alberto Tosi
Domenico Dambra
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.)
GRAFOS A RESPONSABILITA' LIMITATA ABBREVIABILE IN GRAFOS Srl Soc
Original Assignee
GRAFOS A RESPONSABILITA' LIMITATA ABBREVIABILE IN GRAFOS Srl Soc
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 GRAFOS A RESPONSABILITA' LIMITATA ABBREVIABILE IN GRAFOS Srl Soc filed Critical GRAFOS A RESPONSABILITA' LIMITATA ABBREVIABILE IN GRAFOS Srl Soc
Publication of EP1843371A2 publication Critical patent/EP1843371A2/fr
Publication of EP1843371A3 publication Critical patent/EP1843371A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H01H13/7065—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards
    • H01H13/7073—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys characterised by the mechanism between keys and layered keyboards characterised by springs, e.g. Euler springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/028—Blade spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/032—Anti-tamper

Definitions

  • the present invention relates to a long-stroke keyboard, particularly of the panel keyboard type or the like.
  • keyboards are known on numerous commonly-used appliances such as, for example, automatic teller machines, lifts, public telephones, industrial machines or equipment, automatic fuel, ticket, drink dispensers, etc.
  • the known keyboards generally comprise a surface plate, commonly known by the name of "mask”, housed in a specific seat obtained in the control panel of an appliance, and having a plurality of openings suitable for accommodating respective keys sliding and to measure.
  • Each of the keys corresponds to a predetermined function and/or character that can be keyed by a user for interaction with the appliance, and is associated with a respective actuator of an internal integrated circuit arranged underneath the surface plate.
  • the known keyboards can be fitted with long or short stroke keys and, if arranged on outdoors appliances (such as automatic teller machines) are generally water and airtight, i.e., suitable for isolating the internal electronics of the appliances from the outside environment, preventing the transit of potentially harmful foreign elements such as, for example, dusts, liquids, etc.
  • each key is commonly composed of a surface portion suitable for keying by the user and having an ideogram identifying the corresponding function activated by pressing the key, and of an internal portion that activates the corresponding underlying actuator.
  • the use is known of a layer of elastic silicone material, placed in between the surface plate and the integrated circuit underneath, and suitably shaped to define areas arranged in contact with the lower portion of each key, suitable for operating the corresponding underlying actuator when the key is pressed and for bringing the key back to idle position once released.
  • the main aim of the present invention is to provide a long-stroke keyboard, particularly of the panel keyboard type or the like, which allows to achieve the above mentioned upgrading.
  • Another object of this invention is to cater for the above aims with a simple structure, of relatively practical implementation, safe to use and with effective operation, as well as having a relatively low cost.
  • the present upgraded long-stroke keyboard particularly of the panel keyboard type or the like, comprising a surface plate having at least one opening in which is fitted at least one key sliding between an idle configuration, in which said key is substantially raised, and a keying configuration, in which said key is pressed to operate a corresponding underlying actuator, and elastic means operating in contrast to the sliding of said key from said idle configuration to said keying configuration, characterized in that said elastic means comprise at least one lamina spring which has at least one first end associated with said surface plate and a second end associated with said key and which yields by bending in the direction of sliding of said key from said idle configuration to said keying configuration.
  • reference number 1 has been globally indicated an upgraded long-stroke keyboard, particularly of the hermetic-seal keyboard type generally used for control panels of commonly-used appliances, of the automatic teller machine, lift, public telephone, industrial machines or equipment, automatic fuel, ticket, drink dispenser type, etc.
  • the keyboard 1 comprises a surface plate 2 having a plurality of openings 3, in which are housed sliding respective keys 4 suitable for inserting characters and/or numbers, or, in general, activating specific appliance functions on the part of a user.
  • the surface plate 2 is made of metal material particularly resistant to knocks and to the continued action of weather, of the stainless-steel type or the like.
  • each key 4 is sliding between an idle configuration, shown in figure 1 and in which the key 4 is substantially raised, and a keying configuration, shown in figure 2 and in which the key 4 is pressed by the user to activate an underlying actuator, part of an integrated circuit.
  • the actuator and the integrated circuit are not described or shown in detail in this description inasmuch as of the known type.
  • the keyboard 1 comprises elastic means 5 that operate in contrast to the sliding of the keys 4 from the idle configuration to the keying configuration.
  • each key 4 comprises a first portion 6, having a keying surface 7 facing from the opening 3 outwards, and a second inner portion 8, having an interaction surface 9 substantially facing towards the actuator.
  • first portion 6 protrudes at least in part from the opening 3.
  • Different embodiments of the keyboard 1 are not however ruled out in which the keying Surface 7 is substantially on the same plane as the outer surface of the surface plate 2.
  • first and the second portion 6 and 8 are integral and associated with each other by interposition of an elastically deformable membrane 10, made of silicone material or the like.
  • the membrane 10 substantially extends along the entire inner surface of the surface plate 2, ensuring the waterproofing of the keyboard 1 and, generally, the insulation of the internal electronics of the appliance from the outside environment, preventing the potentially harmful transit of foreign elements, such as, for example, dusts, liquids, etc.
  • a supplementary plate 11 made of metal material of the stainless steel type or the like, is associated with the inner surface of the surface plate 2 by interposition of the membrane 10, and permits greater resistance of the keyboard I to knocks.
  • the surface plate 2 has a protruding portion 2a which protrude with respect to the supplementary plate 11, the inner face of which, turned towards the actuator, defines a mechanical stop of the stroke of the key 4, in idle configuration.
  • the second portion 8 comprises a perimeter crown 8a suitable for being put into contact with the mechanical stop (with interposition of the membrane 10) defined on the protruding portion 2a, with the key 4 in idle configuration.
  • the elastic means 5 are composed of a lamina spring, made of metal material, of the deformable type in elastic field, and having a first end 5a associated with the supplementary plate 11 and a second end 5b associated with the key 4 at the interaction surface 9 of the second portion 8.
  • the lamina spring 5 yields by bending towards the direction of sliding of the key 4 along the opening 3 from the idle configuration to the keying configuration and is suitable for starting the underlying actuator.
  • the lamina spring 5, in idle configuration of the key 4 comprises a first section 12 substantially at right angles with respect to the direction of sliding of the key 4, which is fixed to the lower surface of the supplementary plate 11 at the first end 5a.
  • the first section 12 extends in a second section 13 with smaller cross section, which continues in a third section 14 substantially inclined towards the interaction surface 9.
  • the second section 13 is defined close to a substantially intermediate area of the lamina spring 5, and is composed of two portions with cross sections substantially convergent in an area with minimum section.
  • the second section 13 is that which undergoes the most bending during the sliding of the key 4 between the idle configuration and the keying configuration, and the different shaping and the variation of the dimensions of such second section 13 in the manufacturing phase of the lamina spring 5 permits obtaining different intensities of the force opposing the pressing of the key 4.
  • the lamina spring 5 also has an appendix 15 that protrudes from the second section 13, at the second end 5b, and which is placed in contact with the interaction surface 9.
  • the lamina spring 5 has a supporting frame 16, made in a single body piece with the lamina spring 5, and associated with the supplementary plate 11 near the perimeter of the opening 3.
  • the lamina springs 5 arranged by each of the keys 4 can be made of a single metal plate, placed in between the membrane 10 and the electric circuit underneath and fixed by gluing and/or by means of threaded means of the screw type or the like.
  • the presence of the lamina spring also permits considerably reducing the general manufacturing costs of the keyboard and considerably extending its overall life span.

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
EP07005636A 2006-04-07 2007-03-20 Clavier à pression longue, en particulier le type clavier de panneau ou similaire Withdrawn EP1843371A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMO20060118 ITMO20060118A1 (it) 2006-04-07 2006-04-07 Tastiera a corsa lunga,particolarmente del tipo di tastiere da pannello o simili

Publications (2)

Publication Number Publication Date
EP1843371A2 true EP1843371A2 (fr) 2007-10-10
EP1843371A3 EP1843371A3 (fr) 2009-04-22

Family

ID=38098591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07005636A Withdrawn EP1843371A3 (fr) 2006-04-07 2007-03-20 Clavier à pression longue, en particulier le type clavier de panneau ou similaire

Country Status (2)

Country Link
EP (1) EP1843371A3 (fr)
IT (1) ITMO20060118A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023138568A1 (fr) * 2022-01-21 2023-07-27 华为技术有限公司 Clavier et dispositif électronique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1469800A (en) * 1973-06-11 1977-04-06 N Dimensions Electric switch keyboard
DE8712230U1 (de) * 1987-09-09 1987-11-19 Siemens AG, 1000 Berlin und 8000 München Schalter für eine Fernsprechstation
DE19503702A1 (de) * 1995-02-04 1996-08-08 Nicolay Verwaltungs Gmbh Flüssigkeits- und gasdicht gekapselter Schalter, insbesondere für elektrochirurgische Instrumente
US20030094357A1 (en) * 2001-11-20 2003-05-22 Lin Wan Lai Press-button switch structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1469800A (en) * 1973-06-11 1977-04-06 N Dimensions Electric switch keyboard
DE8712230U1 (de) * 1987-09-09 1987-11-19 Siemens AG, 1000 Berlin und 8000 München Schalter für eine Fernsprechstation
DE19503702A1 (de) * 1995-02-04 1996-08-08 Nicolay Verwaltungs Gmbh Flüssigkeits- und gasdicht gekapselter Schalter, insbesondere für elektrochirurgische Instrumente
US20030094357A1 (en) * 2001-11-20 2003-05-22 Lin Wan Lai Press-button switch structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023138568A1 (fr) * 2022-01-21 2023-07-27 华为技术有限公司 Clavier et dispositif électronique

Also Published As

Publication number Publication date
ITMO20060118A1 (it) 2007-10-08
EP1843371A3 (fr) 2009-04-22

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