EP0354312A1 - Dispositif d'appui pour une touche multiple - Google Patents

Dispositif d'appui pour une touche multiple Download PDF

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Publication number
EP0354312A1
EP0354312A1 EP89110018A EP89110018A EP0354312A1 EP 0354312 A1 EP0354312 A1 EP 0354312A1 EP 89110018 A EP89110018 A EP 89110018A EP 89110018 A EP89110018 A EP 89110018A EP 0354312 A1 EP0354312 A1 EP 0354312A1
Authority
EP
European Patent Office
Prior art keywords
key
wire bracket
base
bracket
guide
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Withdrawn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
EP89110018A
Other languages
German (de)
English (en)
Inventor
Wolfgang Ertl
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.)
ZF Electronics GmbH
Original Assignee
Cherry Mikroschalter GmbH
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 Cherry Mikroschalter GmbH filed Critical Cherry Mikroschalter GmbH
Publication of EP0354312A1 publication Critical patent/EP0354312A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/02—Controlling members for hand actuation by linear movement, e.g. push buttons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/12—Push-buttons
    • H01H3/122—Push-buttons with enlarged actuating area, e.g. of the elongated bar-type; Stabilising means therefor

Definitions

  • the invention relates to a support mechanism for multi-button heads with a U-shaped wire bracket, which is pivotally mounted on the button head on both sides of the tappet guide and near the outer edges and on the button base and allows an essentially tilt-free tappet actuation, the free ends of the U-shaped bent Wire bracket can be moved laterally in the holder provided when you press the button head.
  • key heads with a 1: 1 aspect ratio are generally used, with no disturbing tilting moments occurring in the layout of approximately 18 x 18 mm used, in particular since the finger recess provided on the top of the key head favors the central actuation.
  • multi-key heads which have a larger extension in one direction, either in the vertical or horizontal direction, ie an edge ratio greater than 1: 1.
  • Such multi-key heads are preferably used for special functions, such as the line feed, the shift key or the space key. Because of the larger extension of the key head in one direction, it is no longer guaranteed that it is operated centrally, but rather the out-of-center operation is the rule.
  • an actuation mechanism in the case of multiple keys, which consists of a U-shaped wire bracket which is directly or indirectly movably connected to the key head and the key base.
  • the connection points on the key top are located near the two outer edges of the key tops, the free ends of the U-shaped mounting bracket running through bores and being held so that they can be tilted and displaced.
  • the base section of the wire bracket is rotatably mounted on the key base.
  • the known solution has a serious disadvantage if the switch and in particular the button head are to be installed automatically on the button base.
  • the well-known U-shaped wire bracket can namely be threaded with an automat only with extreme effort into the mechanical support provided on the key top, so that manual assembly is still preferred for reasons of cost and because of the larger rejects that cannot be avoided in semi-automatic production.
  • a wire bracket held in this way on the key head cannot be installed by mechanically pressing the multiple heads onto the key base, so that here too there is a need for manual assembly.
  • the problem underlying the invention is derived, namely that the support mechanism for multiple key heads is to be changed such that an automatic assembly together with the square key heads is possible in one automatic operation.
  • this object is achieved in that the ends of the free legs of the U-shaped wire bracket are bent approximately at right angles, namely parallel to the base section, in that the base section of the wire bracket on the key head is eccentrically parallel to the longitudinal center axis in the mechanism carriers is rotatably mounted, the wire bracket being held in an oblique mounting position by a stop, and that the key base has bracket guides on its transverse sides, into which the free ends can be inserted vertically during mounting and can be displaced horizontally when the button head is actuated.
  • This configuration of the support mechanism makes it possible to use all of the key heads preassembled with the individual parts, i.e. Single buttons as well as multiple buttons can be installed automatically by completely attaching them from above and pressing them on.
  • the multiple key shown in the figures is intended for use in a membrane keyboard, wherein the key base 11 is fastened directly to a foil set 12 and to the carrier plate 13 running under the foil set 12 by riveting.
  • the inside of the key base contains a conventional contact, which is actuated via a plunger 15 and a key head 16 attached to it.
  • the plunger 15 is inserted into a socket 16 on the underside of the key head 18, this socket 16 being located in the center with respect to the longitudinal and transverse extension of the multiple key head.
  • plug-in socket 16 On both sides of the plug-in socket 16, namely close to the outer edges of the multi-key head, further plug-in sockets 20 are provided, in each of which a mechanical support 22 is inserted.
  • This mechanical carrier 22 is shown in its side view from FIGS. 2 and 3 and reveals that it has a rotary bearing 24 in the region of the front edge of the multi-key head, which is designed as a snap-in bearing and serves to receive a wire bracket 26.
  • this wire bracket 26 is bent in a U-shape, so that there is a long base section 28 which extends approximately over the entire length of the multi-key head and snapped into the pivot bearing 24 in the mechanical support 22 at sections as far out as possible can be.
  • the free ends 30 of the wire bracket 26 are bent inwards so that they run parallel to the base section 28 and end in a plane which extends somewhat outside the outer boundary plane of the key socket 11.
  • the mechanical support 22 extends to the central region of the multi-key head and has an upwardly projecting pin which can be inserted into the plug-in socket 16.
  • a mounting stop 32 runs obliquely downwards at an angle, so that the wire bracket 26 inserted into the pivot bearing 24 with the base section is held in an inclined position in the hanging state, which, as is evident from the later explanation, ensures that that the free ends 30 of the wire bracket are fixed in the correct mounting position when the multi-button head is placed on the button base.
  • a guide rib 36 is also provided on the mechanical support 22, which runs along the inside of the bent wire bracket when the button is pressed and ensures a horizontal alignment.
  • a guide projection 40 is provided for the bracket guide 37 for the free end 30 of the wire bracket.
  • a guide shoulder 38 runs vertically downward at a distance from the guide projection 40 which corresponds approximately to two or more times the diameter of the wire bracket 26.
  • the guide projection 40 consists of an L-shaped rib projecting over the transverse side of the key base, the long leg of which runs parallel to the film set or parallel to a projecting base edge 42 of the key base. This creates a recess extending in the transverse direction, the inner guide shoulder of the guide projection 40 running at a distance from the base edge which is somewhat larger than the diameter of the free end 30 of the wire bracket 26.
  • the individual key bases are placed on the foil set and riveted to the carrier plate.
  • buttons heads To attach the button heads, they are placed in a pallet with all pre-assembled parts and sucked in using a template.
  • the wire brackets mounted on the multiple heads fall down due to their own weight and come to rest against the mounting stop 32, as a result of which they assume the mounting position necessary for automatic mounting.
  • the key heads In this position, the key heads are moved further downward, so that the free ends 30 of the wire brackets 26 are moved down between the guide shoulder 38 and the guide projection 40 to the base edge 42 until they come to bear against it.
  • This position is shown in Fig. 3 with excellent lines and represents the position of the fully assembled button.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Push-Button Switches (AREA)
EP89110018A 1988-07-22 1989-06-02 Dispositif d'appui pour une touche multiple Withdrawn EP0354312A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3824980A DE3824980A1 (de) 1988-07-22 1988-07-22 Stuetzmechanik fuer mehrfachtastenkoepfe
DE3824980 1988-07-22

Publications (1)

Publication Number Publication Date
EP0354312A1 true EP0354312A1 (fr) 1990-02-14

Family

ID=6359343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110018A Withdrawn EP0354312A1 (fr) 1988-07-22 1989-06-02 Dispositif d'appui pour une touche multiple

Country Status (3)

Country Link
US (1) US4950093A (fr)
EP (1) EP0354312A1 (fr)
DE (1) DE3824980A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619588A1 (fr) * 1993-04-05 1994-10-12 Brother Kogyo Kabushiki Kaisha Commutateur à touche
WO2001014947A2 (fr) * 1999-08-24 2001-03-01 Fujitsu Siemens Computers Gmbh Boitier de clavier pour les touches d'un clavier a touches a enfoncer

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5376765A (en) * 1992-09-16 1994-12-27 Key Tronic Corporation Key leveler apparatus
JP2585754Y2 (ja) * 1992-10-01 1998-11-25 エスエムケイ株式会社 キーボードのキートップ組込み機構
US5504283A (en) * 1992-10-28 1996-04-02 Brother Kogyo Kabushiki Kaisha Key switch device
US5424516A (en) * 1993-09-23 1995-06-13 Emmons; Charles E. Low profile pushbutton switch
US5941373A (en) * 1997-05-30 1999-08-24 Mustke Corporation Integrated keyboard key assembly
US6443644B1 (en) * 2000-03-17 2002-09-03 Minebea Co., Ltd. Spill resistant keyboard
WO2013081546A1 (fr) * 2011-11-29 2013-06-06 Razer (Asia-Pacific) Pte Ltd Mécanisme d'interrupteur à touche à transmission optique pour claviers à capacité d'affichage, pavés numériques ou autres dispositifs d'entrée d'utilisateur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208647A1 (de) * 1972-02-24 1973-09-06 Alps Electric Co Ltd Leertaste
DE8708373U1 (fr) * 1987-06-13 1987-08-13 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt, De
US4771146A (en) * 1985-08-19 1988-09-13 Alps Electric Co., Ltd. Keyboard key top mounting structure
EP0304847A1 (fr) * 1987-08-24 1989-03-01 Siemens Nixdorf Informationssysteme Aktiengesellschaft Touche à poussoir

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720801A (en) * 1972-02-03 1973-03-13 Alps Electric Co Ltd Space key
US4010838A (en) * 1975-01-17 1977-03-08 Burroughs Corporation Spacer bar mechanism
US4468145A (en) * 1982-03-18 1984-08-28 Oak Industries, Inc. Keyboard space bar stabilizer
US4384796A (en) * 1982-03-18 1983-05-24 Oak Industries Inc. Keyboard space bar stabilizer
US4453063A (en) * 1983-08-03 1984-06-05 Illinois Tool Works Inc. Keyswitch configuration with torque rod holder
DE3329698A1 (de) * 1983-08-17 1985-03-07 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt Drucktaste
US4535210A (en) * 1984-04-18 1985-08-13 Illinois Tool Works Inc. Keyswitch stabilizing device
JPS638537U (fr) * 1986-07-02 1988-01-20

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208647A1 (de) * 1972-02-24 1973-09-06 Alps Electric Co Ltd Leertaste
US4771146A (en) * 1985-08-19 1988-09-13 Alps Electric Co., Ltd. Keyboard key top mounting structure
DE8708373U1 (fr) * 1987-06-13 1987-08-13 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf. Gmbh & Co, 8740 Bad Neustadt, De
EP0304847A1 (fr) * 1987-08-24 1989-03-01 Siemens Nixdorf Informationssysteme Aktiengesellschaft Touche à poussoir

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619588A1 (fr) * 1993-04-05 1994-10-12 Brother Kogyo Kabushiki Kaisha Commutateur à touche
WO2001014947A2 (fr) * 1999-08-24 2001-03-01 Fujitsu Siemens Computers Gmbh Boitier de clavier pour les touches d'un clavier a touches a enfoncer
WO2001014947A3 (fr) * 1999-08-24 2001-08-30 Fujitsu Siemens Computers Gmbh Boitier de clavier pour les touches d'un clavier a touches a enfoncer
US6776547B1 (en) 1999-08-24 2004-08-17 Fujitsu Siemans Computers Gmbh Keyboard housing for a keypad of a push-button keyboard

Also Published As

Publication number Publication date
US4950093A (en) 1990-08-21
DE3824980A1 (de) 1990-01-25

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