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EP0441993A1 - Plaque d'actionnement pour un clavier - Google Patents

Plaque d'actionnement pour un clavier Download PDF

Info

Publication number
EP0441993A1
EP0441993A1 EP90102672A EP90102672A EP0441993A1 EP 0441993 A1 EP0441993 A1 EP 0441993A1 EP 90102672 A EP90102672 A EP 90102672A EP 90102672 A EP90102672 A EP 90102672A EP 0441993 A1 EP0441993 A1 EP 0441993A1
Authority
EP
European Patent Office
Prior art keywords
actuator plate
key
slots
arrangement
foil
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Withdrawn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
EP90102672A
Other languages
German (de)
English (en)
Inventor
Manfred Dipl.-Ing. Schmidt (Fh)
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.)
Lexmark International Inc
Original Assignee
Lexmark International Inc
International Business Machines Corp
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 Lexmark International Inc, International Business Machines Corp filed Critical Lexmark International Inc
Priority to EP90102672A priority Critical patent/EP0441993A1/fr
Priority to JP3037684A priority patent/JPH04215220A/ja
Publication of EP0441993A1 publication Critical patent/EP0441993A1/fr
Withdrawn legal-status Critical Current

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Images

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/006—Force isolators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/006—Only mechanical function
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/022—Asymmetric; Elliptic; Square
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/022—Asymmetric; Elliptic; Square
    • H01H2215/024—Spider
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/006—Bank automat; Cash register; Vending machine
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/034—Environmental protection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/038—Anti-vandalism

Definitions

  • the present invention concerns an actuator plate with integrated short-stroke keys, in particular for keyboards of outdoor automatic teller machines, according to the preamble of claim 1.
  • keyboards of automatic teller machines have to be extremely robust, as they must be accessible to everyone and are exposed to any weather conditions. This necessitates in particular that the keyboard should withstand shock, heat, cold, rain, snow, ice, etc. and any kinds of vandalism.
  • the keyboard must be designed to cope with operating faults. This means in particular that the user entering information should receive feed-back to the effect that within a given field a key may be pressed at any arbitrary location, that the switching force must be low, that the keyboard must be adaptable to special user requirements without design changes, and that faulty operation of the keyboard by tools or other objects is largely prevented.
  • keyboards with mechanically acting single keys are user friendly with regard to the low switching force and the tactile key stroke, their design is elaborate and their manufacture and assembly are very expensive. In addition, they are not suitable for outdoor use involving changing weather conditions, such as cold, heat, moisture, and the risk of vandalism.
  • foil keyboards have the advantage that their design is simple, that, consequently, they are inexpensive to produce and assemble, and that they are highly unsusceptible to weather conditions.
  • Their disadvantage is however that they have a rigid user surface, that they are unelastic, and that no tactile switching action is conveyed to the user.
  • the actuator plate takes the form of one or several diaphragms that or more or less elastic and that are actuated by finger force or a special actuating mechanism.
  • the function of these diaphragms may be described such that they are deformed in response to being depressed, closing a contact triggering a signal.
  • a disadvantage of this kind of diaphragm keyboard is that no tactile switch action is conveyed to the user entering data, so that such a keyboard is not user friendly.
  • a further disadvantage of the diaphragm keyboard is that the elastic properties of the diaphragms required for its function may be adversely affected by outdoor use, since the keyboard is largely unprotected against deliberate destruction.
  • a finger-actuated elastic diaphragm which consists of an actuator plate with two semicircular recesses that are positioned to one another such that a flexible septum is formed. By depressing this septum a contact triggering a signal is closed.
  • the design of this diaphragm is not very user friendly either, as there is no tactile key stroke, the diaphragam being deformed downwards.
  • this kind of diaphragm is not very resistant to improper handling or deliberate destruction. This holds in particular for the septum and the semicircular recess.
  • the advantages obtained by the invention essentially consist in the key integrated in the actuator plate being highly user friendly, in particular with regard to the fact that a tactile key stroke is conveyed to the user.
  • the key functions satisfactorily even if it is not depressed exactly in the center.
  • the key is self-restoring and the switching force is low.
  • the actuator plate is designed such that it is highly resistant to improper handling, vandalism or weather conditions.
  • the shape of the keys and their arrangement on the actuator plate may be chosen arbitrarily. As key and actuator plate form one integrated component, the overall height of the actuator plate is very small. Manufacture and assembly are simple and inexpensive. The design and the colour of the foil covering the keyboard may be chosen at random and be adapted to customer requirements.
  • Fig. 1 shows the actuator plate 1 designed according to the invention with single keys 3 and double keys 5.
  • the actuator plate 1 preferably consists of a relatively rigid plastic material, such as nylon, and preferably has a thickness of about 1 to 1.5 mm. Another conceivable material would be, for example, steel CR NI 188.
  • the plastic actuator plate is preferably made by injection molding; a steel actuator plate would be produced by etching.
  • Fig. 2 shows a key designed according to the invention in the form of a square single key 7.
  • the square single key 7 is designed such that the key field 9 is surrounded by an inner slot arrangement 11.
  • the individual inner slots 12 are preferably positioned on the circumference of the respective geometric shape of the key 7.
  • the inner slot arrangement 11 is positioned on the circumference of a square.
  • the inner slot arrangement 11 consists of four angular slots.
  • the four angular slots define the corner areas of the square key field 9.
  • the inner slots 12 are preferably arranged relative to each other such that each slot 12 and its respective adjacent slot 12 on the circumference are separated by a relatively short inner bar 13.
  • the inner slot arrangement 11, confining the key field 9, is surrounded by an outer slot arrangement 15.
  • the outer slot arrangement 15 consists of four outer longitudinal slots defining the outer circumference of the square key 7.
  • the outer slots 16 are preferably arranged to each other such that each outer slot 16 and its respective adjacent outer slot 16 on the outer circumference are separated by a relatively short outer bar 17.
  • the outer bars 17 define the corner regions of the outer circumference of the square key.
  • Outer slots 16 and inner slots 12 are preferably positioned parallel to each other.
  • These spring arms 19 form a movable connection between the key field 9 confined by the inner slot arrangement 11 formed by the inner slots 12 and the actuator plate 1.
  • the bars 17 formed by the outer slots 16 function as supports, i.e., the spring arms 19 rest against them.
  • the inner slots 12 and the outer slots 16 in this embodiment are preferably positioned relative to each other such that several interconnected spring arms 19 are formed.
  • the number of spring arms 19 may vary depending upon the size of the key field 9. This is to keep the deflection force at a minimum.
  • the key field 9 is deflectable from the plane of the actuator plate, e.g., downwards in stroke fashion.
  • the spring arms 19, formed by the outer slots 16 and the inner slots 12, represent a suspension of the key field 9 with the special feature that each point of the key field 9 allows tactile deflection. An advantage of this is in particular that proper functioning is also ensured if key field 9 is depressed off-center.
  • the width of the slots 12 and 16 is preferably such that there is no friction between the slot edges when a key stroke occurs.
  • the thickness of the material of spring arms 19 is preferably thinner than the remaining thickness of the key 7.
  • Fig. 3 shows a further embodiment of the key 7 according to the invention, as illustrated in Fig. 2.
  • This embodiment of Fig. 3 differs from that of Fig. 2 in that, by means of a connector slot, only one end 21 of each inner slot 12 and only one end 22 of each outer slot 16 are connected to each corner of the key field 9.
  • the inner slots 12 and the outer slots 16 are preferably arranged relative to each other across the key field 9 such that the connector slots 23 form four spring arms 19 which are separated from each other.
  • four spring arms 19 of maximum length are obtained which are positioned relative to each other such that each pressure point on the key field 19 is associated with a sufficiently long spring arm 19, ensuring a uniform key function also in the peripheral areas of the key field 9.
  • the key field 9 is deflectable in stroke fashion at each point, i.e., the operation of the key according to the invention corresponds to that of a mechanical key.
  • the number of connector slots 23 determines the number of spring arms 19.
  • Fig. 4 shows yet a further embodiment of a key according to the invention in the form of a rectangular double key 5 which in principle is made up of two single keys 3 (Fig. 3) of the invention.
  • the key field 9 of the double key 5 is suspended on six spring arms 19 and is about twice as large.
  • the inner slot 12 continues in the outer slot 16 staggered in parallel thereto by means of a connector slot 23, so that two spring arms 19, which are separated from each other, are formed on the long side of the double key 5.
  • Fig. 5 shows a further embodiment of the key according to the invention in the form of a rectangular double key 25.
  • the inner slot arrangement 11 consists of two U-shaped slots 12 and two longitudinal slots 12.
  • the two U-shaped slots 12 define the corner regions of the rectangular key field 9 and the two longitudinal slots the long sides of the rectangular key field 9.
  • Four inner bars 13 are positioned on the circumference of the rectangular key field 9. As there are no connector slots 23 between the inner slots 12 and the outer slots 16, this embodiment requires a higher deflection force for actuation.
  • Figs. 6, 7 and 8 show different embodiments of the key 3 according to the invention.
  • the key 3 designed according to the invention and as shown in Figs. 6, 7 and 8 is not confined to a particular geometric shape.
  • the keys in Figs. 6 and 7 are designed according to the same principle as the keys in Figs. 3 and 4.
  • the circular key 28 and the triangular key 30 are each suspended on three spring arms 19.
  • the outer slots 12 and the inner slots 16 are diagonally connected by means of connector slots 23, at a particular point, the inner slot 12 continuing in the outer slot 16. With these embodiments, the number of spring arms 19 may be increased.
  • a further embodiment of the actuator plate 1 according to the invention consists in the slots 12 being replaced by 16 perforations which are produced by punching.
  • Fig. 8 shows an embodiment of the key according to the invention which follows the same design principle as the key of Figs. 2 and 5.
  • the deflection of the key field 9 is limited and a higher deflection force is required for actuating the key 32.
  • Fig. 9 shows by way of an exploded view the design of a keyboard using the actuator plate 1 according to the invention.
  • the actuator plate 1 is provided with a plurality of square single keys 3 and double keys 5 and is covered by a flexible foil 36.
  • the covering foil 36 serves a double function, it carries the relevant key symbols 41 and it weather-proofs the keyboard and the keys 3, 5 of the actuator plate 1 against rain, snow, ice, in addition to protecting keyboard and keys against improper handling.
  • the actuator plate 1 rests planely on the holding foil 46. Underneath the holding foil 46, the metal domes 40 on the switching foil 44 are positioned in recesses 51 of the spacer foil. From the switching foil 44, a connector cable 33 links up with the microprocessor.
  • the actuator plate 1 with the different foils is supported on the carrier plate 34.
  • Fig. 10 shows a detail sectional view of a keyboard with the actuator plate 1 designed according to the invention and comprising a single key of Fig. 3.
  • the keyboard is preferably made up of the following segments or parts of single elements: carrier plate 34, switching foil 44, spacer foil 45, holding foil 46, metal domes 40, actuator plate 1 and covering foil 36.
  • the switching foil 44 rests on the carrier plate 34.
  • the spacer foil 45 is positioned on the switching foil 44.
  • the spacer foil 45 is provided with recess 51 in which the metal domes 40 are arranged.
  • the holding foil 46 rests on the spacer foil 45.
  • the holding foil 46 serves to position the metal domes 40 relative to the key 3.
  • the key 3 is provided with preferably step-shaped recesses 57.
  • the deepest recess 57 is arranged in the region of the slots 12 and l6 of the key 3. Recesses 57 decrease stepwise in the direction of the center of the key 3, thence continuing in the support face 55. Support face 55 contacts the metal domes 40 through holding foil 46. When the key 3 is depressed, the support area 55 is displaced downwards, bending the holding foil 46 downwards. As a result, the metal domes 40 snap, i.e. the round surface of the metal dome 40 folds abruptly inwards so that contact to the switching foil 44 is established, triggering a key signal. When the key 3 is released, the metal dome 40 resumes its original position, exerting in addition to the spring-dependent restoring force, an additional restoring force on key 3, returning the latter to its original position.
  • the support face 55 is arranged opposite the metal domes 40, ensuring a reliable operation and a tactile and audible snap-action of the metal domes 40 which occurs also if the key is depressed off-center.
  • Fig. 11 is a detail sectional view of the actuator plate 1 comprising a double key of Fig. 4.
  • the double key 5 has two raised portions or projections 53 with two support faces 55 in the area facing the holding foil 46.
  • the support faces 55 contact the two metal domes 40, provided for a double key, through the holding foil 46.
  • Fig. 12 shows an exploded view of a keyboard with the inventive actuator plate 1 comprising insertable foils 58. As shown in Fig. 12, the actuator plate 1 is provided with single keys 3 as well as with double keys 5.
  • the actuator plate 1 comprises recesses 59 of different width to accommodate the insertable foils 58. Different and exchangeable foils 58 suiting particular customer requirements may be used at any time.
  • the insertable foils 58 may be arranged directly above the key field 9 without impairing the switch function of the keys.
  • the inscription and colours for the respective key symbols are provided on the insertable foils 58.
  • the key fields 9 and the inscriptions of the insertable foils 58 may be illuminated.
  • the back sides of the insertable foils 58 are printed or engraved and the portion of the insertable foil 58 projecting from the key is illuminated, so that the key is suitable for night use.
  • the covering foil 36, fixed to the actuator plate 1, is transparent in this case. In addition, foil 36 may be provided with a raised key edge 60.
  • the actuator plate 1 with the insertable foil 58 and the covering foil 36 is fixed on the holding foil 46 in this case.
  • the actuator plate 1 has all the essential advantages of a mechanically acting single key board, is user friendly, has a tactile key stroke, a low switching force, functions even if the key is depressed off-center, without having the disadvantages of the mechanically acting keyboard, such as a complicated design and thus being expensive to produce and assemble, a relatively large overall height of the keyboard, being susceptible to destruction and vandalism, and being adaptable to customer requirements only to a limited extent.
  • the actuator plate of the invention has all the essential advantages of the foil keyboard, such as a low overall height, being inexpensive and simple to produce and assemble, having an arbitrarily designable keyboard, without displaying the disadvantages of the foil keyboard, such as being susceptible to destruction and being user unfriendly.

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  • Push-Button Switches (AREA)
EP90102672A 1990-02-12 1990-02-12 Plaque d'actionnement pour un clavier Withdrawn EP0441993A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90102672A EP0441993A1 (fr) 1990-02-12 1990-02-12 Plaque d'actionnement pour un clavier
JP3037684A JPH04215220A (ja) 1990-02-12 1991-02-08 キーボード用作動板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90102672A EP0441993A1 (fr) 1990-02-12 1990-02-12 Plaque d'actionnement pour un clavier

Publications (1)

Publication Number Publication Date
EP0441993A1 true EP0441993A1 (fr) 1991-08-21

Family

ID=8203635

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102672A Withdrawn EP0441993A1 (fr) 1990-02-12 1990-02-12 Plaque d'actionnement pour un clavier

Country Status (2)

Country Link
EP (1) EP0441993A1 (fr)
JP (1) JPH04215220A (fr)

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692803A1 (fr) * 1994-07-13 1996-01-17 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co. KG. Dispositif pour la transmission à un capteur de force, de la force appliquée à une touche
WO1997004472A1 (fr) * 1995-07-24 1997-02-06 Nokia Mobile Phones Ltd. Clavier, touches et telephone pourvu d'un tel clavier
WO1999028810A1 (fr) * 1997-11-27 1999-06-10 Andrei Gennadievich Cherepkov Panneau pour clavier
EP1158553A1 (fr) * 2000-05-24 2001-11-28 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Clavier pourvu d'une feuille à dômes
WO2001091150A1 (fr) * 2000-05-24 2001-11-29 Telefonaktiebolaget L M Ericsson (Publ) Clavier comprenant une feuille en forme de dome
EP2001034A3 (fr) * 2007-06-04 2009-12-30 Panasonic Corporation Élément de contact mobile et commutateur l'utilisant
GB2487728A (en) * 2011-01-28 2012-08-08 Novalia Ltd Flexible electronic component
WO2014193850A1 (fr) * 2013-05-27 2014-12-04 Apple Inc. Ensemble interrupteur à course réduite
US9064642B2 (en) 2013-03-10 2015-06-23 Apple Inc. Rattle-free keyswitch mechanism
US9449772B2 (en) 2012-10-30 2016-09-20 Apple Inc. Low-travel key mechanisms using butterfly hinges
US9502193B2 (en) 2012-10-30 2016-11-22 Apple Inc. Low-travel key mechanisms using butterfly hinges
US9640347B2 (en) 2013-09-30 2017-05-02 Apple Inc. Keycaps with reduced thickness
US9704665B2 (en) 2014-05-19 2017-07-11 Apple Inc. Backlit keyboard including reflective component
US9704670B2 (en) 2013-09-30 2017-07-11 Apple Inc. Keycaps having reduced thickness
US9710069B2 (en) 2012-10-30 2017-07-18 Apple Inc. Flexible printed circuit having flex tails upon which keyboard keycaps are coupled
US9715978B2 (en) 2014-05-27 2017-07-25 Apple Inc. Low travel switch assembly
US9779889B2 (en) 2014-03-24 2017-10-03 Apple Inc. Scissor mechanism features for a keyboard
US9793066B1 (en) 2014-01-31 2017-10-17 Apple Inc. Keyboard hinge mechanism
US9870880B2 (en) 2014-09-30 2018-01-16 Apple Inc. Dome switch and switch housing for keyboard assembly
US9908310B2 (en) 2013-07-10 2018-03-06 Apple Inc. Electronic device with a reduced friction surface
US9927895B2 (en) 2013-02-06 2018-03-27 Apple Inc. Input/output device with a dynamically adjustable appearance and function
US9934915B2 (en) 2015-06-10 2018-04-03 Apple Inc. Reduced layer keyboard stack-up
US9971084B2 (en) 2015-09-28 2018-05-15 Apple Inc. Illumination structure for uniform illumination of keys
US9997304B2 (en) 2015-05-13 2018-06-12 Apple Inc. Uniform illumination of keys
US9997308B2 (en) 2015-05-13 2018-06-12 Apple Inc. Low-travel key mechanism for an input device
US10082880B1 (en) 2014-08-28 2018-09-25 Apple Inc. System level features of a keyboard
US10083805B2 (en) 2015-05-13 2018-09-25 Apple Inc. Keyboard for electronic device
US10115544B2 (en) 2016-08-08 2018-10-30 Apple Inc. Singulated keyboard assemblies and methods for assembling a keyboard
US10128064B2 (en) 2015-05-13 2018-11-13 Apple Inc. Keyboard assemblies having reduced thicknesses and method of forming keyboard assemblies
US10353485B1 (en) 2016-07-27 2019-07-16 Apple Inc. Multifunction input device with an embedded capacitive sensing layer
US10755877B1 (en) 2016-08-29 2020-08-25 Apple Inc. Keyboard for an electronic device
US10775850B2 (en) 2017-07-26 2020-09-15 Apple Inc. Computer with keyboard
US10796863B2 (en) 2014-08-15 2020-10-06 Apple Inc. Fabric keyboard
US11500538B2 (en) 2016-09-13 2022-11-15 Apple Inc. Keyless keyboard with force sensing and haptic feedback

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Title
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Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692803A1 (fr) * 1994-07-13 1996-01-17 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co. KG. Dispositif pour la transmission à un capteur de force, de la force appliquée à une touche
WO1997004472A1 (fr) * 1995-07-24 1997-02-06 Nokia Mobile Phones Ltd. Clavier, touches et telephone pourvu d'un tel clavier
US6677541B1 (en) 1995-07-24 2004-01-13 Nokia Mobile Phones Limited Keyboard and key and telephone apparatus with such a keyboard
WO1999028810A1 (fr) * 1997-11-27 1999-06-10 Andrei Gennadievich Cherepkov Panneau pour clavier
EP1158553A1 (fr) * 2000-05-24 2001-11-28 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Clavier pourvu d'une feuille à dômes
WO2001091150A1 (fr) * 2000-05-24 2001-11-29 Telefonaktiebolaget L M Ericsson (Publ) Clavier comprenant une feuille en forme de dome
EP2001034A3 (fr) * 2007-06-04 2009-12-30 Panasonic Corporation Élément de contact mobile et commutateur l'utilisant
US7960667B2 (en) 2007-06-04 2011-06-14 Panasonic Corporation Movable contact element and switch using the same
GB2487728B (en) * 2011-01-28 2015-06-03 Novalia Ltd Electronic component
US9349549B2 (en) 2011-01-28 2016-05-24 Novalia Ltd. Electronic component
GB2487728A (en) * 2011-01-28 2012-08-08 Novalia Ltd Flexible electronic component
US9449772B2 (en) 2012-10-30 2016-09-20 Apple Inc. Low-travel key mechanisms using butterfly hinges
US10699856B2 (en) 2012-10-30 2020-06-30 Apple Inc. Low-travel key mechanisms using butterfly hinges
US10211008B2 (en) 2012-10-30 2019-02-19 Apple Inc. Low-travel key mechanisms using butterfly hinges
US10254851B2 (en) 2012-10-30 2019-04-09 Apple Inc. Keyboard key employing a capacitive sensor and dome
US9502193B2 (en) 2012-10-30 2016-11-22 Apple Inc. Low-travel key mechanisms using butterfly hinges
US9761389B2 (en) 2012-10-30 2017-09-12 Apple Inc. Low-travel key mechanisms with butterfly hinges
US11023081B2 (en) 2012-10-30 2021-06-01 Apple Inc. Multi-functional keyboard assemblies
US9710069B2 (en) 2012-10-30 2017-07-18 Apple Inc. Flexible printed circuit having flex tails upon which keyboard keycaps are coupled
US9916945B2 (en) 2012-10-30 2018-03-13 Apple Inc. Low-travel key mechanisms using butterfly hinges
US10114489B2 (en) 2013-02-06 2018-10-30 Apple Inc. Input/output device with a dynamically adjustable appearance and function
US9927895B2 (en) 2013-02-06 2018-03-27 Apple Inc. Input/output device with a dynamically adjustable appearance and function
US9064642B2 (en) 2013-03-10 2015-06-23 Apple Inc. Rattle-free keyswitch mechanism
US9412533B2 (en) 2013-05-27 2016-08-09 Apple Inc. Low travel switch assembly
WO2014193850A1 (fr) * 2013-05-27 2014-12-04 Apple Inc. Ensemble interrupteur à course réduite
US10262814B2 (en) 2013-05-27 2019-04-16 Apple Inc. Low travel switch assembly
CN105247644A (zh) * 2013-05-27 2016-01-13 苹果公司 低行程开关组件
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