EP1071106A1 - Zweistufiger Druckschalter - Google Patents

Zweistufiger Druckschalter Download PDF

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Publication number
EP1071106A1
EP1071106A1 EP00402018A EP00402018A EP1071106A1 EP 1071106 A1 EP1071106 A1 EP 1071106A1 EP 00402018 A EP00402018 A EP 00402018A EP 00402018 A EP00402018 A EP 00402018A EP 1071106 A1 EP1071106 A1 EP 1071106A1
Authority
EP
European Patent Office
Prior art keywords
conductive
membrane
function
pressure switch
portions
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.)
Granted
Application number
EP00402018A
Other languages
English (en)
French (fr)
Other versions
EP1071106B1 (de
Inventor
Jean-Christophe Villain
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.)
TCT Mobile Ltd
Original Assignee
Alcatel CIT SA
Alcatel SA
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 Alcatel CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of EP1071106A1 publication Critical patent/EP1071106A1/de
Application granted granted Critical
Publication of EP1071106B1 publication Critical patent/EP1071106B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • 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
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/018—Consecutive operations

Definitions

  • the invention relates to a pressure switch for controlling at least two functions respectively in response to pressure exerted on the switch.
  • Such a switch is used for different types of equipment electric, such as for example cameras, camcorders or phones.
  • the purpose of this switch is to reduce the maximum number of keys and increase the ergonomics of these devices.
  • a first press of low pressure you activates a first function, such as for example a preparatory mode as a preset.
  • a second function is activated, such as for example an operational mode as a validation of the preselection.
  • a switch of the aforementioned type comprising an insulating substrate having an outer annular contact area and an interior annular contact area.
  • a conductive deformable cup arranged opposite said zones, is adapted to be in contact with on the one hand the external zone following a first press on it and on the other hand on the two zones following a second press of greater pressure.
  • the cup is covered an insulating membrane which is fixed to the substrate by means of spacers in order to keep the cup away from the zones, in the rest position.
  • This switch has a number of drawbacks. No only additional parts are required to maintain the cup out of contact with the substrate, but it is also difficult to control the space necessary between the cup and the substrate in such a situation. The edges of the cup must indeed extend in a plane parallel to the substrate so that the contact following the first press is complete.
  • the invention therefore aims to overcome the drawbacks of the prior art by proposing a powerful switch, simple to implement and minimum footprint, this switch should allow use ergonomic to access different functions.
  • the invention provides a switch of the aforementioned type, comprising an insulating substrate comprising at least a first and a second zone conductors capable of triggering a first and a second respectively functions.
  • At least the first conductive zone has at least two portions electrically isolated from each other, the first portion being connected to a track entrance and the second portion to an exit track.
  • the second conductive zone is further connected to at least one additional output track.
  • the switch further comprises a membrane comprising at least first and second contact zones capable of contacting the first and second conductive zones as a function of the pressure exerted on the membrane.
  • the first contact area has at least two connected regions between them electrically and able to contact the portions respectively, of so as to connect the input and output tracks together.
  • the invention also relates to electrical equipment comprising a pressure switch mentioned above, and means for executing at least first and second functions, the execution of the functions being triggered respectively in response to pressure on the switch.
  • the function triggered in the first stress position is for example a preset function, while the function triggered in second request position is for example a selection function.
  • the insulating substrate has two zones conductive, each part of a substantially circular ring, the first conductive area being external to the second conductive area.
  • the first conductive area has at least three sections, the first of which is connected to an entry track and the second and third are connected by output tracks to circuits programmed so that the first function is triggered as soon as the three portions are contacted by the corresponding regions.
  • the first conductive area has at least three sections, the first of which is connected to an entry track and the second and third are connected by output tracks to circuits programmed so that a first action is triggered when the first and the second portion is contacted, while a second action is triggered when the first and third portions are contacted.
  • the electrical equipment may include means execution of at least two actions allowing movement in two directions different from a slider, in response to activation of the switch.
  • the switch can then be part of a navigation button.
  • At least part of the outer face of the membrane adheres to a flexible holding envelope, attached to the insulating substrate outside the zones conductive. This envelope keeps the membrane in the rest position while allowing its passage into first and second stress positions.
  • the switch of the invention further comprises a button capable of acting on the outer face of the membrane to exert pressure there.
  • FIGS 1 and 2 show schematic perspective views of the pressure switch of the invention, Figure 1 partially showing the flexible holding envelope.
  • FIG. 3 represents a top view of the insulating substrate surmounted by the membrane.
  • Figures 4 and 5 are respectively side and top views of the pressure switch of the invention, when in the rest position.
  • Figures 6 and 7 are sectional views along lines VI-VI respectively and VII-VII of Figure 5.
  • Figures 8 and 9 show sectional views similar to the view of the Figure 6, showing respectively the first and second positions of pressure on the pressure switch of the invention.
  • Figure 10 is a schematic view from below showing the membrane and its contact areas.
  • the switch 1 includes a insulating substrate 2 comprising electrical tracks and circuits, and surmounted by a membrane 3 adapted to establish contacts with these electrical circuits.
  • the membrane 3 is moved and deformed under the effect of pressures exerted on its outer face 3a by a button 4.
  • the insulating substrate 2 is formed of a plate comprising first and second conductive zones 6, 7 each part of a substantially circular ring.
  • the first zone conductive 6 is external to the second conductive zone 7.
  • the first conductive area 6 has four portions A, B, C, D, conductive, electrically isolated from each other.
  • Each of these portions A, B, C, D has the general form of a disk. Of course, other forms can be envisaged.
  • the portions A to D are distributed circumferentially along the ring forming said first conductive zone 6, with, in the present mode of realization, a constant gap, of the order of 90 ° between them.
  • the first portion A is connected to an entry track 8, adapted to it bring electric current.
  • the second and third portions B, C which are arranged on the side and of the first portion A, are each connected by an exit track 9, 10 to a particular electrical circuit 11, 12.
  • the fourth portion D which is arranged opposite the first portion A, is electrically inactive. It is in fact not connected to any circuit.
  • first and fourth portions A, D are aligned along a plane substantially perpendicular to the plane along which the second and third portions B, C (see Figures 3 and 5).
  • the electrical circuits 11 and 12 are programmed so that when contact is established simultaneously with each of the portions A to D, a first function is executed.
  • This function is for example a preselection in a menu which can be displayed on a screen (not shown) connected to switch 1.
  • the electrical circuit 11 can be programmed so that a first action is executed when the contact is established simultaneously with the portions A, B, D.
  • the electrical circuit 12 can be programmed so that a second action is executed when the contact is established simultaneously with portions A, C, D.
  • Switch 1 can then be integrated into a navigation button.
  • the second conductive area 7 has a single portion E of shape and of dimensions similar to those of portions A to D.
  • the portion E is arranged in the center of the ring comprising the portions A to D. It is therefore equidistant from each between them.
  • the portion E is connected by an output track 13 to an electrical circuit 14, programmed so that when contact is made simultaneously with each from the portions A to E, a second function is executed.
  • This second function is for example a validation function of a choice preselected after the first function or action.
  • the second function is executed as soon as the simultaneous contact with the portions A, B, D, E or A, C, D, E is established, as long as the portion D exists.
  • the second function can only be performed if portion A, which is connected to a current input track, and the E portion are contacted simultaneously.
  • the second conductive zone 7 comprises several portions in the same way as the first conductive zone 6 in order to allow other functions to be performed.
  • the membrane 3 has the shape of a cup of general section substantially circular. More specifically, it has a general shape hemispherical.
  • the membrane 3 has on its inner face 3b, which is intended to come opposite the insulating substrate 2, a first and a second contact zone 15, 16.
  • these contact zones 15, 16 are suitable for contact the first and second conductive zones 6, 7 respectively function of the pressure exerted on the membrane 3.
  • the first contact area 15 has four regions A ', B', C ', D' electrically interconnected and able to contact the portions A respectively, B, C, D, so as to connect the input 8 and output 9, 10 tracks together.
  • the portions A 'to D' are part of a tab 15a to 15d projecting from the free edge 17 of the membrane 3.
  • the membrane 3 is formed by a hemispherical dome 18 extended from its free edge 17 by four legs 15a to 15d.
  • the distance between two adjacent legs is constant and around 90 °.
  • Each of the legs 15a to 15d follows the general curvature of the dome 18.
  • regions A 'and D' extend in the same first plane, while regions B 'and C' extend in the same second plane, substantially parallel to the first plane, the second plane being closer to the top of dome 18.
  • the difference between the two planes is of the order 0.2 millimeters.
  • the membrane 3 has substantially a shape of four-pointed star.
  • the membrane 3 is arranged so that the region A 'rests on the portion A and the region D' rests on the portion D.
  • This position of the membrane 3 corresponds to the rest position (see Figures 5 to 7).
  • the difference between the planes comprising the regions A ', D' of a part and the regions B ', C' on the other hand is minimum so that the displacement of the membrane 3 to pass from the rest position to the first position of load is reduced.
  • the second contact area 16 has a single contact region E ' able to be in contact with portion E.
  • Region E extends at least at the top of dome 18. It can further extend over the entire inner face of dome 18.
  • This region E ' cannot be in contact with the corresponding portion E that when the membrane 3 is deformed so that its concavity is reversed, under sufficient pressure.
  • the membrane 3 is then in its second loading position (see Figure 9).
  • the membrane 3 is made in one piece in a conductive material. It is for example made of electrically conductive metal.
  • the membrane 3 is maintained in the rest position by means of a flexible holding envelope 19, such as a thin film.
  • the material of the holding envelope 19 must be sufficiently thin and flexible to prevent any deformation of the membrane 3. It must indeed allow at least the passage from the rest position to the first and second loading positions.
  • the holding envelope 19 is for example made of plastic material flexible or paper.
  • This holding envelope 19 is rigidly fixed, for example by bonding, to at least part of the outer face 3a (for example the face exterior of dome 18), or even on its entire surface. It thus substantially marries the outer shape of the membrane 3.
  • the holding envelope 19 is also rigidly fixed to the substrate insulator 2 outside the conductive areas 6, 7 (see Figures 1 and 5 to 8).
  • the membrane 3 is stressed by means a key 4 able to be in contact with the holding envelope 19.
  • the key 4 is formed by two cylinders solid superimposed 4a, 4b by their base.
  • One of the cylinders 4a has a diameter higher than the other.
  • the small cylinder 4b is intended to be in contact, by its base opposite the cylinder 4a, with the holding envelope 19 at least at the level of the top of the dome 18.
  • the other cylinder 4a is intended to receive the finger of the user.
  • Key 4 thus has a T-shaped cross section.
  • the movement of key 4 is guided and limited by a wall extending substantially parallel to the insulating substrate 2 and framing said key.
  • key 4 exerts no pressure on the membrane 3. It is preferably removed from it.
  • each pair of legs 15a-15d and 15b-15c allows a certain balance and stability of the membrane 3 in the rest position.
  • the dome 18 is not deformed. Only one support at the top of the dome 18 lowers the legs 15b and 15c towards the insulating substrate 2.
  • the symmetry of the legs 15b and 15c ensures simultaneous contact of the two legs 15b, 15c when an effective support has been exerted on the membrane 3.
  • the membrane is loose (for example, the plane with regions B ', C' is not exactly parallel to the insulating substrate 2) so that in the rest position, only one of the tabs 15b, 15c is in contact with the insulating substrate 2, the first function does not can only be executed after pressing the membrane 3 and not by inadvertence.
  • dome 18 When key 4 is released, dome 18 automatically returns in its rest position and the legs 15b and 15c are spaced from the insulating substrate 2. The membrane 3 then returns to its rest position.

Landscapes

  • Push-Button Switches (AREA)
  • Vehicle Body Suspensions (AREA)
  • Braking Systems And Boosters (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Keying Circuit Devices (AREA)
  • Fluid-Pressure Circuits (AREA)
EP00402018A 1999-07-19 2000-07-13 Zweistufiger Druckschalter Expired - Lifetime EP1071106B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9909340A FR2796754B1 (fr) 1999-07-19 1999-07-19 Commutateur a double pression
FR9909340 1999-07-19

Publications (2)

Publication Number Publication Date
EP1071106A1 true EP1071106A1 (de) 2001-01-24
EP1071106B1 EP1071106B1 (de) 2006-05-24

Family

ID=9548257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00402018A Expired - Lifetime EP1071106B1 (de) 1999-07-19 2000-07-13 Zweistufiger Druckschalter

Country Status (11)

Country Link
US (1) US6498312B1 (de)
EP (1) EP1071106B1 (de)
JP (1) JP2001067989A (de)
CN (1) CN1194364C (de)
AT (1) ATE327564T1 (de)
AU (1) AU4862700A (de)
DE (1) DE60028141T2 (de)
ES (1) ES2265325T3 (de)
FR (1) FR2796754B1 (de)
HU (1) HUP0002605A3 (de)
PT (1) PT1071106E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1816662A2 (de) 2006-02-06 2007-08-08 LG Electronics Inc. Vorrichtung und Verfahren zur Tasteneingabe bei einem mobilen Endgerät

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003187671A (ja) * 2001-12-14 2003-07-04 Nec Saitama Ltd キー入力回路、及び、携帯端末の入力装置
TW579010U (en) * 2002-11-15 2004-03-01 Lite On Technology Corp Input device for alarming of excessive applied force
TW591496B (en) * 2002-11-15 2004-06-11 Lite On Technology Corp Apparatus and method of determining output signal based on pressure and pressing time
TW572345U (en) * 2003-06-23 2004-01-11 Emi Stop Corp Elastic sheet of ingle-piece circuit switch
US7301113B2 (en) * 2004-11-08 2007-11-27 Fujikura Ltd. Diaphragm for use in switch, method for manufacturing thereof, membrane switch, and input device
JP2006202505A (ja) * 2005-01-18 2006-08-03 Matsushita Electric Ind Co Ltd プッシュオンスイッチ
US20080208108A1 (en) * 2007-02-28 2008-08-28 Kenichi Kimura Treatment apparatus for operation
CN101414519B (zh) * 2007-10-15 2011-07-27 深圳富泰宏精密工业有限公司 按键及应用该按键的电子装置
US7652216B2 (en) * 2007-12-18 2010-01-26 Streamlight, Inc. Electrical switch, as for controlling a flashlight
CN101615521A (zh) * 2008-06-27 2009-12-30 深圳富泰宏精密工业有限公司 按键结构
JP4539787B1 (ja) * 2009-04-27 2010-09-08 オムロン株式会社 操作スイッチおよび携帯端末
JP5347818B2 (ja) * 2009-08-06 2013-11-20 ミツミ電機株式会社 ドーム状ばね及びスイッチ
FR2957187B1 (fr) 2010-03-04 2012-10-26 Coactive Technologies Inc Commutateur electrique a effet tactile a double action
JP2011187406A (ja) * 2010-03-11 2011-09-22 Omron Corp スイッチユニット、操作スイッチ、および携帯端末
US8552321B2 (en) * 2010-06-03 2013-10-08 Apple Inc. Multiple-pole single-throw dome switch assemblies
FR2961340B1 (fr) 2010-06-11 2013-06-28 Coactive Technologies Inc Commutateur electrique a effet tactile a double action
CN102157290A (zh) * 2011-03-18 2011-08-17 倪军 塑料薄膜式多键码按键
WO2017056601A1 (ja) * 2015-09-30 2017-04-06 アルプス電気株式会社 プッシュスイッチ
CN105496217B (zh) * 2016-01-25 2019-07-12 九阳股份有限公司 一种烹饪器具的控制装置和控制方法
CN106983966B (zh) * 2017-03-31 2022-05-20 四川华川工业有限公司 一种钢化玻璃自动破碎装置
CN108354666B (zh) * 2018-03-02 2024-05-28 崇好科技有限公司 一种可减少高功率激光作用组织时产生烟雾的手持装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4659881A (en) * 1986-01-27 1987-04-21 Eastman Kodak Company Multidome multistage switch assembly
US5245147A (en) * 1991-02-22 1993-09-14 Alps Electric Co., Ltd. Push button switch
US5313027A (en) * 1992-03-16 1994-05-17 Matsushita Electric Industrial Co., Ltd. Push button switch assembly including single or plural sequentially closed switches
US5510584A (en) * 1995-03-07 1996-04-23 Itt Corporation Sequentially operated snap action membrane switches
US5726400A (en) * 1995-07-12 1998-03-10 Fuji Electronics Industries, Ltd. Thin switch
US5898147A (en) * 1997-10-29 1999-04-27 C & K Components, Inc. Dual tact switch assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3000885B2 (ja) * 1994-12-28 2000-01-17 ヤマハ株式会社 スイッチ装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4659881A (en) * 1986-01-27 1987-04-21 Eastman Kodak Company Multidome multistage switch assembly
US5245147A (en) * 1991-02-22 1993-09-14 Alps Electric Co., Ltd. Push button switch
US5313027A (en) * 1992-03-16 1994-05-17 Matsushita Electric Industrial Co., Ltd. Push button switch assembly including single or plural sequentially closed switches
US5510584A (en) * 1995-03-07 1996-04-23 Itt Corporation Sequentially operated snap action membrane switches
US5726400A (en) * 1995-07-12 1998-03-10 Fuji Electronics Industries, Ltd. Thin switch
US5898147A (en) * 1997-10-29 1999-04-27 C & K Components, Inc. Dual tact switch assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1816662A2 (de) 2006-02-06 2007-08-08 LG Electronics Inc. Vorrichtung und Verfahren zur Tasteneingabe bei einem mobilen Endgerät
EP1816662A3 (de) * 2006-02-06 2009-04-08 LG Electronics Inc. Vorrichtung und Verfahren zur Tasteneingabe bei einem mobilen Endgerät
US7737373B2 (en) 2006-02-06 2010-06-15 Lg Electronics Inc. Mobile terminal key input device and method

Also Published As

Publication number Publication date
CN1194364C (zh) 2005-03-23
EP1071106B1 (de) 2006-05-24
US6498312B1 (en) 2002-12-24
DE60028141D1 (de) 2006-06-29
ES2265325T3 (es) 2007-02-16
CN1281233A (zh) 2001-01-24
HUP0002605A2 (en) 2001-03-28
HUP0002605A3 (en) 2001-05-28
DE60028141T2 (de) 2007-03-08
JP2001067989A (ja) 2001-03-16
ATE327564T1 (de) 2006-06-15
AU4862700A (en) 2001-01-25
PT1071106E (pt) 2006-09-29
FR2796754B1 (fr) 2002-04-12
HU0002605D0 (en) 2000-09-28
FR2796754A1 (fr) 2001-01-26

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