EP3522195B1 - Tastaturschalter - Google Patents

Tastaturschalter Download PDF

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Publication number
EP3522195B1
EP3522195B1 EP18154328.1A EP18154328A EP3522195B1 EP 3522195 B1 EP3522195 B1 EP 3522195B1 EP 18154328 A EP18154328 A EP 18154328A EP 3522195 B1 EP3522195 B1 EP 3522195B1
Authority
EP
European Patent Office
Prior art keywords
spacer
keyboard
key top
key
plate
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.)
Active
Application number
EP18154328.1A
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English (en)
French (fr)
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EP3522195A1 (de
Inventor
Yasuhiro Iijima
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.)
Topre Corp
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Topre Corp
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Filing date
Publication date
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Priority to EP18154328.1A priority Critical patent/EP3522195B1/de
Publication of EP3522195A1 publication Critical patent/EP3522195A1/de
Application granted granted Critical
Publication of EP3522195B1 publication Critical patent/EP3522195B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/024—Spacer elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/028—Key stroke

Definitions

  • the invention relates to a keyboard switch for use in an input device (for example, a keyboard) which inputs information into electronic equipment.
  • JP-A-08-329770 discloses a keyboard switch for use in an input device (for example, a keyboard) which inputs information into electronic equipment.
  • an input device for example, a keyboard
  • common key strokes are set to all keyboard switches on the keyboard.
  • Another keyboard switch is known from JP 2012 138254 A .
  • keyboards become diversified. Users may use different keyboards depending on a purpose of use. For example, when playing a game or the like, for quick hitting of a specified key, the users want to use a short key stroke keyboard. In normal times other than the game or the like, the users want to use a long key stroke keyboard.
  • a keyboard switch which can change a stroke of a specified key in a single keyboard is provided.
  • a keyboard switch includes a key top movable vertically on receiving a depressing force, a plunger engaged with a lower portion of the key top and movable vertically with the key top, a cup rubber disposed under the plunger and supporting the plunger from below, a housing arranged on an outer peripheral side of the plunger and cup rubber, a plate supported on the housing and extending laterally, and a spacer interposed between the plate and key top. The spacer is removably mounted onto the keyboard.
  • a keyboard switch may be used in a keyboard serving as an input device for inputting information into electronic equipment.
  • a keyboard 1 includes thereon multiple keys arranged in parallel along the lateral direction and longitudinal direction thereof.
  • a keyboard switch 3 includes a key top 5 movable vertically on receiving a depressing force from an operator, a plunger 7 engaged with the lower portion of the key top 5 and movable vertically together with the key top 5, a cup rubber 9 disposed under the plunger 7 for supporting it from below, a housing 11 arranged on the outer peripheral side of the plunger 7 and cup rubber 9, a plate 13 supported on the housing 11 and extending laterally, a spacer 15 interposed between the plate 13 and key top 5, and a coil spring 17 arranged under the cup rubber 9.
  • the spacer 15 can be removably mounted onto the keyboard 1.
  • the keyboard switch 3 is arranged on a board 19. Specific description is given below.
  • the key top 5 is formed of a material such as a synthetic resin.
  • the key top 5 includes: a key top main body part 21 having an outer periphery formed in a truncated pyramid shape; a side surface part 23 extending obliquely downward from the outer peripheral end of the key top main body part 21; and, a cylindrical connecting tube part 25 extending downward from the central portion of the lower surface of the key top main body part 21 and engageable with the plunger 7.
  • the upper surface of the key top main body part 21 is formed as a depressing surface 27. In its side view, a central portion in the right and left direction of the upper surface of the key top main body part 21 is formed in a downward recessed curved shape so that an operator can easily press it with his / her finger.
  • the plunger 7 is formed of a material such as a synthetic resin.
  • the plunger 7 is vertically movable together with the key top 5. It is integrally constituted of a cylindrical part 29 arranged on its upper side, a contact part 31 extending laterally from the lower end of the cylindrical part 29, and a pawl part 33 bent in the tip end of the contact part 31 and extending downward.
  • the contact part 31 is contactable with a depressing part 35 of the cup rubber 9 (to be discussed later), while the lower end 37 of the pawl part 33 is contactable with the base part 39 of the cup rubber 9.
  • the cup rubber 9 may be formed of a material such as an elastic rubber.
  • the cup rubber 9 is arranged on the underside of the plunger 7. It is integrally constituted of a depressing part 35 forming an upper surface thereof, a cylindrical leg part 41 extending downward from the outer peripheral edge of the depressing part 35, and a flat base part 39 spreading laterally from the lower end of the leg part 41.
  • the housing 11 may be formed of a material such as a synthetic resin.
  • the housing is integrally constituted of a rectangular cylindrical housing main body 43 disposed on the lower side of the housing 11 and a cylindrical connecting projection part 45 disposed on the upper side of the housing main body 43.
  • On the lower portion of the housing main body 43 there is formed a laterally projecting portion 47 and, on the upper end of the projecting portion 47, there is formed a support surface 49 for supporting the plate 13.
  • On the side surface of the housing main body 43 there is formed a projection 51 existing above the support surface 49. Also, into the inner peripheral side of the connecting projection part 45, there is inserted the cylindrical part 29 of the plunger 7.
  • the plate 13 may be formed of a material such as metal or synthetic resin.
  • the plate 13 has a rectangular opening 53 capable of inserting the housing 11 therein.
  • the peripheral edge of the opening 53 is placed on the support surface 49 of the housing 11, and the support surface 49 and projection 51 of the housing 11 clamp the peripheral edge of the opening 53 from above and below.
  • the spacer 15 may be formed of rubber such as urethane foam. Its material is not limited particularly as long as it is an elastic body.
  • the spacer 15 is formed in a rectangular (annular) frame body in its plan view. According to the exemplary embodiment, the spacer 15 has a notch 55 on the inner peripheral side of the frame body. As shown in Fig. 5A , the spacer 15 may be formed in a square shape in its plan view. According to the exemplary embodiment, the spacer 15 is integrally constituted of a pair of opposed vertical side parts 57 extending in the vertical direction in Fig. 5A and a pair of lateral side parts 59 extending in the right and left direction.
  • notches 55 may be formed in the paired vertical side parts 57, on the inner peripheral sides of the central portions in the extending direction thereof.
  • the spacer 15 is arranged at such key position as shown in Figs. 1 and 2 .
  • the arrangement position of the spacer 15 is not limited particularly but can be selected arbitrarily.
  • the coil spring 17 is formed in a spiral shape in which, when no load is applied, its diameter increases gradually from the upper side to the lower side.
  • the coil spring 17 is stored on the inner peripheral side of the cup rubber 9.
  • the coil spring 17 is formed by winding a conductive coil wire in such a manner that it can be elastically deformed in the vertical direction.
  • a switch section 610 constituted of a pair of electrode parts 61 and 61.
  • the coil spring 17 increases the electrical capacitive coupling amount between the paired electrode parts 61 and 61, thereby being able to detect that the key top 5 has been pressed by the switch mechanism.
  • the vertical distance between the lower end 63 of the side surface part 23 of the key top 5 and the upper surface 65 of the spacer 15 is designated by S1
  • the vertical distance between the lower end 63 of the side surface part 23 of the key top 5 and the upper surface 67 of the plate 63 is designated by S2
  • the thickness of the spacer 15 is designated by t.
  • the thickness t of the spacer 15 can be set to an arbitrary thickness.
  • the plunger 7 descends with the key top 5 and thus the lower end 63 of the side surface part 23 of the key top 5 hits the upper surface 65 of the spacer 15. While the spacer 15 elastically deforms slightly because it is an elastic body, when the spacer 15 is mounted, the vertical stroke of the key top 5 becomes almost S1. Meanwhile, unless the spacer 15 is mounted, when the depressing surface 27 of the key top 5 is pressed, the plunger 7 descends with the key top 5 and thus the lower end 63 of the side surface part 23 of the key top 5 hits the upper surface 67 of the plate 13. Therefore, unless the spacer 15 is mounted, the vertical stroke of the key top 5 becomes S2. As described above, the vertical stroke of the key top 5 becomes shorter when the spacer 15 is mounted.
  • a second exemplary embodiment is described referring to Figs. 8 to 10B .
  • the same composing elements as the first exemplary embodiment are given the same designations and the description thereof is omitted.
  • a spacer 115 according to the second exemplary embodiment is integrally formed to correspond to multiple adjacent keys on a keyboard 101.
  • the spacer 115 is formed of rubber such as urethane foam but its material is not limited particularly as long as it is an elastic body.
  • the spacer 115 shown in Fig. 10A corresponds to four keys on the keyboard 101, that is, a W key 110, an A key 120, an S key 130 and a D key 140.
  • W key 110, A key 120, S key 130 and D key 140 are four adjacent keys which are used often in a game.
  • the spacer 115 is constituted of four frame bodies connected together, each having a square shape in its plan view.
  • each frame body is formed in a rectangular (annular) frame body in a plan view and includes a notch 55 on its inner peripheral side.
  • each frame body is formed in a square shape in its plan view and is integrally constituted of a vertical side part 57 extending in the vertical direction in Fig. 10A and a lateral side part 59 extending in the right and left direction.
  • Each of the pair of opposed vertical side parts 57 and 57 includes a notch 55 on the inner peripheral side of the central portion in the extending direction of the vertical side part 57.
  • the second exemplary embodiment can answer the need of the operator who wants to hit keys quickly.
  • a keyboard switch 3 includes a key top 5 movable vertically on receiving a depressing force, a plunger 7 engaged with a lower portion of the key top 5 and movable vertically with the key top 5, a cup rubber 9 disposed under the plunger 7 and supporting the plunger 7 from below, a housing 11 arranged on an outer peripheral side of the plunger 7 and the cup rubber 9, a plate 13 supported on the housing 11 and extending laterally, and a spacer 15, 115, 225 interposed between the plate 13 and the key top 5.
  • the spacer 15, 115, 225 is removably mounted in a keyboard 1, 101.
  • a position of the spacer 15, 115, 225 on the keyboard 1, 101 is arbitrarily selectable.
  • the spacer 15, 115, 225 is formed of an elastic body.
  • the spacer 15, 115, 215 has a shape of an annular frame body in its plan view.
  • the spacer 15, 115, 215 includes a notch 55 on an inner peripheral side of the annular frame body.
  • the housing 11 includes a support surface 49 and a projection 51.
  • the plate 13 is formed with an opening 53.
  • the housing 11 penetrates in the opening 53.
  • the support surface 49 and the projection 51 clamp a peripheral edge of the opening 53 from above and below.
  • the projection 51 is accommodated in the notch 55.
  • the spacer 15 corresponds to one key on the keyboard 1.
  • the spacer 115, 215 is integrally formed so as to correspond to multiple adjacent keys on the keyboard 101.
  • a keyboard 1, 101 includes a board 19, a plate 13, a first key 120, 130, 140, and a second key 150.
  • Each of the first key 120, 130, 140 and the second key 150 includes a switch section 610 provided on the board 19, a key top 5 movable vertically on receiving a depressing force, a cup rubber 9 disposed below the key top 5, and a housing 11 arranged on an outer peripheral side of the cup rubber 9 and penetrating through an opening of the plate 13.
  • a spacer 15, 115, 215 is arranged between the plate 13 and the key top 5 of the first key 120, 130, 140. No spacer is arranged between the plate 13 and the key top 5 of the second key 150.
  • the key board 101 includes a third key 120, 130, 140.
  • the third key 120, 130, 140 includes a switch section 610 provided on the board 19, a key top 5 movable vertically on receiving a depressing force, a cup rubber 9 disposed below the key top 5, and a housing 11 arranged on an outer peripheral side of the cup rubber 9 and penetrating through an opening of the plate 13.
  • the spacer 115, 215 has openings through which the housing 11 of the first key 120,130,140 and the housing 11 of the third key 120, 130, 140 respectively penetrate.
  • a replacement spacer having the same outer shape with the spacer 15, 115, 215 in its plan view and a thickness in a vertical direction which is different from a thickness with the spacer 15, 115, 215 is provided in a combination with the keyboard 1, 101.
  • a spacer 15, 115, 215 configured to be removably mounted in the keyboard 1, 101 is provided.
  • a method of mounting a spacer to a keyboard includes a step of removing the key top 5 from the keyboard 1, 101; a step of mounting a spacer 15, 115, 215 on the plate 13 of the keyboard 1, 101 in which the key top 5 is removed, and a step of mounting the key top 5 to the keyboard 1, 101 in which the spacer 15, 115, 215 is mounted.
  • the spacer can be removably mounted onto the keyboard. Therefore, in the case that the spacer is interposed between the plate and key top, when the key top is depressed to hit the spacer, the vertical stroke of the key top at the time of key entry is shortened and thus the hitting sound is also reduced. This provides an advantage when an operator wants to hit a specified key quickly in a game or the like, or when the operator wants to increase the speed of inputting a sentence.
  • the stroke of a specified key can be changed with one keyboard.

Landscapes

  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Claims (11)

  1. Tastaturschalter (3), umfassend:
    - eine Tastkappe (5), die bei einem Aufnehmen einer Druckkraft vertikal bewegbar ist;
    - einen Stößel (7), der mit einem unteren Abschnitt der Tastkappe (5) in Eingriff ist und mit der Tastkappe (5) vertikal bewegbar ist;
    - einen Manschettengummi (9), der unter dem Stößel (7) angeordnet ist und den Stößel (7) von unten stützt;
    - ein Gehäuse (11), das auf einer Außenumfangsseite des Stößels (7) und des Manschettengummis (9) angeordnet ist;
    - eine Platte (13), die auf dem Gehäuse (11) gelagert ist und sich seitlich erstreckt; und
    - einen Abstandshalter (15, 115, 225), der zwischen die Platte (13) und die Tastkappe (5) eingefügt ist, wobei der Abstandshalter (15, 115, 225) derart abnehmbar angebracht ist, dass ein Anwender ihn ungehindert anbringen oder abnehmen kann.
  2. Tastaturschalter (3) nach Anspruch 1, wobei der Abstandshalter (15, 115, 225) aus einem elastischen Körper gebildet ist.
  3. Tastaturschalter (3) nach einem der Ansprüche 1 bis 2, wobei der Abstandshalter (15, 115, 215) in seiner Draufsicht eine Form eines ringförmigen Rahmenkörpers aufweist, und
    - wobei der Abstandshalter (15, 115, 215) eine Raste (55) auf einer Innenumfangsseite des ringförmigen Rahmenkörpers umfasst.
  4. Tastaturschalter (3) nach Anspruch 3, wobei das Gehäuse (11) eine Tragefläche (49) und eine Auskragung (51) umfassen,
    - wobei die Platte (13) mit einer Öffnung (53) ausgebildet ist,
    - wobei das Gehäuse (11) in die Öffnung (53) eindringt,
    - wobei die Tragefläche (49) und die Auskragung (51) eine Randkante der Öffnung (53) von oben und unten einklemmen, und
    - wobei die Auskragung (51) in der Raste (55) aufgenommen ist.
  5. Tastatur (1, 101), umfassend:
    - eine Platine (19);
    - eine Platte (13);
    - eine erste Taste (120, 130, 140); und
    - eine zweite Taste (150),
    - wobei jede der ersten Taste (120, 130, 140) und der zweiten Taste (150) umfassen:
    - einen Schalterabschnitt (610), der auf der Platine (19) bereitgestellt ist;
    - eine Tastkappe (5), die bei einem Aufnehmen einer Druckkraft vertikal bewegbar ist;
    - einen Stößel (7), der mit einem unteren Abschnitt der Tastkappe (5) in Eingriff ist und mit der Tastkappe (5) vertikal bewegbar ist;
    - einen Manschettengummi (9), der unter dem Stößel (7) angeordnet ist und den Stößel (7) von unten stützt; und
    - ein Gehäuse (11), das auf einer Außenumfangsseite des Manschettengummis (9) angeordnet ist und durch eine Öffnung der Platte (13) hindurchdringt,
    - wobei ein Abstandshalter (15, 115, 215) zwischen der Platte (13) und der Tastkappe (5) der ersten Taste (120, 130, 140) angeordnet ist, wobei der Abstandshalter (15, 115, 225) abnehmbar zwischen der Platte (13) und der Tastkappe (5) angebracht ist, und
    - wobei kein Abstandshalter zwischen der Platte (13) und der Tastkappe (5) der zweiten Taste (150) angeordnet ist.
  6. Tastatur (1, 101) nach Anspruch 5, wobei eine Position des Abstandshalters (15, 115, 225) auf der Tastatur (1, 1001) beliebig auswählbar ist.
  7. Tastatur (1) nach Anspruch 5 oder 6, wobei der Abstandshalter (15) einer Taste auf der Tastatur (1) zugehörig ist.
  8. Tastatur (101) nach Anspruch 5 oder 6, wobei der Abstandshalter (115, 215) einstückig gebildet ist, um mehreren benachbarten Tasten auf der Tastatur (101) zugehörig zu sein.
  9. Tastatur (101) nach einem der Ansprüche 5 bis 8, weiter umfassend:
    - eine dritte Taste (120, 130, 140),
    - wobei die dritte Taste (120, 130, 140) umfasst:
    - einen Schalterabschnitt (610), der auf der Platine (19) bereitgestellt ist;
    - eine Tastkappe (5), die bei einem Aufnehmen einer Druckkraft vertikal bewegbar ist;
    - einen Manschettengummi (9), der unter der Tastkappe (5) angeordnet ist; und
    - ein Gehäuse (11), das auf einer Außenumfangsseite des Manschettengummis (9) angeordnet ist und durch eine Öffnung der Platte (13) hindurchdringt,
    - wobei der Abstandshalter (115, 215) Öffnungen aufweist, durch die jeweils das Gehäuse (11) der ersten Taste (120, 130, 140) und das Gehäuse (11) der dritten Taste (120, 130, 140) hindurchdringen.
  10. Kombination aus einer Tastatur und einem Ersatzabstandshalter, umfassend:
    - die Tastatur (1, 101) nach Anspruch 8 oder 9; und
    - einen Ersatzabstandshalter, der in seiner Draufsicht die gleiche äußere Form wie der Abstandshalter (15, 115, 215) und in einer vertikalen Richtung eine Dicke, die sich von einer Dicke des Abstandshalters (15, 115, 215) unterscheidet, aufweist.
  11. Verfahren zum Anbringen eines Abstandshalters an eine Tastatur, wobei die Tastatur (1, 101) eine Tastkappe (5), die bei einem Aufnehmen einer Druckkraft vertikal bewegbar ist, einen Stößel (7), der mit einem unteren Abschnitt der Tastkappe (5) in Eingriff ist und mit der Tastkappe (5) vertikal bewegbar ist, einen Manschettengummi (9), der unter dem Stößel (7) angeordnet ist und den Stößel (7) von unten stützt, ein Gehäuse (11), das auf einer Außenumfangsseite des Manschettengummis (9) angeordnet ist, eine Platte (13), die auf dem Gehäuse (11) gelagert ist und sich seitlich erstreckt, und einen Abstandshalter (15, 115, 215), der zwischen die Platte (13) und die Tastkappe (5) eingefügt ist, sodass ein Anwender den Abstandshalter ungehindert anbringen oder abnehmen kann, umfasst, wobei das Verfahren umfasst:
    - Abnehmen der Tastkappe (5) von der Tastatur (1, 101);
    - Anbringen des Abstandshalters (15, 115, 215) auf der Platte (13) der Tastatur (1, 101), von der die Tastkappe (5) abgenommen ist; und
    - Anbringen der Tastkappe (5) an die Tastatur (1, 101), an die der Abstandshalter (15, 115, 215) angebracht ist.
EP18154328.1A 2018-01-31 2018-01-31 Tastaturschalter Active EP3522195B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18154328.1A EP3522195B1 (de) 2018-01-31 2018-01-31 Tastaturschalter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18154328.1A EP3522195B1 (de) 2018-01-31 2018-01-31 Tastaturschalter

Publications (2)

Publication Number Publication Date
EP3522195A1 EP3522195A1 (de) 2019-08-07
EP3522195B1 true EP3522195B1 (de) 2020-06-17

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970004399B1 (en) * 1993-07-02 1997-03-27 B T C Korea Co Ltd Keyboard
JPH08329770A (ja) 1995-06-02 1996-12-13 Matsushita Electric Ind Co Ltd 押釦スイッチ
KR100559189B1 (ko) * 2003-10-28 2006-03-10 한국에스엠케이 주식회사 키톱
JP5684562B2 (ja) * 2010-12-27 2015-03-11 東プレ株式会社 キーボードスイッチ
JP6758121B2 (ja) * 2016-08-24 2020-09-23 東プレ株式会社 キーボードスイッチ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

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