EP2941779A1 - Tastenmodul und aufsteckelement für ein tastenmodul - Google Patents
Tastenmodul und aufsteckelement für ein tastenmodulInfo
- Publication number
- EP2941779A1 EP2941779A1 EP14748208.7A EP14748208A EP2941779A1 EP 2941779 A1 EP2941779 A1 EP 2941779A1 EP 14748208 A EP14748208 A EP 14748208A EP 2941779 A1 EP2941779 A1 EP 2941779A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- damping element
- plunger
- housing
- button
- upper stop
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 143
- 239000004033 plastic Substances 0.000 claims description 28
- 229920003023 plastic Polymers 0.000 claims description 28
- 238000001746 injection moulding Methods 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
-
- 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
- H01H13/04—Cases; Covers
-
- 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
- H01H13/84—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 characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/024—Transmission element
- H01H2221/03—Stoppers for on or off position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/062—Damping vibrations
Definitions
- the invention relates to a mechanical key module and a plug-on element for a mechanical key module.
- Mechanical key modules form the basis of the keys to be operated by a user in keyboards.
- a computer keyboard typically has about one hundred key modules.
- a mechanical key module comprises a housing and a ram arranged in the housing, which is linearly movable between an upper stop position and a lower stop position by an upper stop and a lower stop.
- an elastic element arranged in the housing for example a spring, pushes the plunger into the upper stop position.
- a force exerted by a user operating force of the plunger is pressed into the lower stop position, while the elastic-see element is reversibly compressed.
- a suitable key-button for the formation of the button to be actuated by a user can usually be attached or attached to the push-button of the key module.
- Such key modules are offered for example by the company ZF Friedrichshafen AG, formerly Cherry GmbH, under the name MX technology or MX key module for many years.
- a disadvantage of such known key modules are the stop noises generated both when the keys are actuated and when the keys are released. hen. These impact noises are particularly disturbing in offices with several PC workstations.
- the invention has for its object to provide a key module and a Aufste- ckelement for a key module in which the attack noises when pressing and releasing the keys are reduced by a user, preferably without or at least without noticeable negative change in the switching characteristic and / or Life of the key modules.
- This object is achieved with regard to the key module by the features of claim 1 and with respect to the Advicesteckelements for a key module by the features of claim 13.
- Advantageous embodiments and further developments are specified in the respective dependent claims.
- the key module according to the invention comprises a housing and a ram arranged in the housing, which is linearly movable between an upper stop position and a lower stop position by an upper stop and a lower stop.
- an elastic element arranged in the housing presses the plunger into the upper stop position, provided that no actuating force acts on the plunger. However, if an operating force is exerted by a user, this pushes the plunger in the lower stop position and presses the elastic element reversible together.
- the lower stop to reduce the impact noise is formed by a first damping element and that the upper stop to reduce the impact noises is formed by a second damping element.
- first damping element and the second damping element form an integral damping element or are part of a one-piece damping element.
- the first damping element and the second damping element form an integral damping element or are part of a one-piece damping element.
- forms of execution in which it is in the first Dämpfu ngselement and the second damping element u m gelel damping element, which realizes the two damping effects at the top and u nter stop.
- the one-piece Dämpfu ngselement is formed and angeord net, that it surrounds the plunger to at least in its upper stop position annular.
- the one-piece damping element can be a damping ring.
- the first damping element and / or the second damping element and / or the aforementioned one-piece damping element comprising the first damping element and the second damping element may be made of elastic plastic or comprise this plastic.
- the hardness of the respective Dämpfu ngsieri can be varied according to the desired requirements du rch selection of a suitable plastic.
- the elastic plastic may be, for example, TPE (abbreviation for thermoplastic elastomers).
- an upper abutment surface formed on the plunger cooperates with the second damping element to limit the linear movement of the plunger.
- the second damping element preferably forms at least one protruding second projection, for example a knob or a circularly running sealing lip, for contacting the upper stop surface.
- An embodiment of the invention provides that the housing of the key module has an opening for the plunger through which a part of the plunger is moved out of the housing in its upper stop position.
- the moved-out part of the plunger has a connecting device for attaching a key button on the plunger. This key button is located outside the housing of the key module or can be arranged.
- this key button a user can operate the key module and thus exert the actuating force on the plunger.
- a further development of this embodiment provides that at the lower stop a formed on the push button attached to the button bottom stop surface cooperates with the first damping element to limit the linear movement of the plunger.
- the first damping element forms at least one protruding first projection, for example a nub or a circular circumferential sealing lip, for contacting the lower stop surface.
- a variant of the key module according to the invention provides a slip-on.
- This slip-on element has a carrier element on which the first damping element and the second damping element are mounted. Further, the support member has means for attaching the Aufsteckelements on an outer side of the housing of the key module.
- the plug-on element thus forms the responsible for the noise damping element of the key module.
- the slip-on element comprising the carrier element and the first damping element and the second damping element can be configured, for example, by means of two Be manufactured component injection molding technology. This enables a cost-effective production.
- the devices to m attaching the Aufsteckelements on the Au .seite the housing may be formed, for example, as locking elements. These locking elements are designed so that they are latched to the housing to r training a solid Verbindu ng or latched. This allows a firm and secure positioning of the plug-on element with the damping elements on the housing of the key module, slipping is thus prevented. Also, one or more of the locking elements may be formed as guide lugs, which are shaped such that already when plugging the Aufsteckelements on the housing, the plug is so gefu hert, that it occupies the intended position on the housing and the assumption of a faulty position is prevented , This ensures the correct assembly and positioning of the slip-on element to one and facilitates the other.
- the carrier element of the slip-on element can consist of, for example, synthetic material, in particular of the plastics ABS or PA or PP or a plastic compound, comprising one or more of the abovementioned plastics, or comprise this material.
- the plug-on element can also be designed in such a way that in a state attached to the housing of the key module, it surrounds the plunger of the key motor in an annular manner at least in its upper stop position.
- another embodiment variant of the key module provides that the first damping element and the second damping element, and therefore also the one-piece damping element, are formed directly on the housing ,
- the housing and the first damping element and the second damping element can be used, and thus optionally also the one-piece damping element, be made together by means of two-component injection molding.
- this variant thus provides for the direct integration of the damping elements in the housing of the key module, the use of an additional component, for example, the above and below described slip-on, thus eliminating in this variant.
- the slip-on element according to the invention is designed and intended for a key module with a housing and a ram arranged in the housing, which is linearly movable between an upper stop position and a lower stop position by an upper stop and a lower stop.
- An elastic member disposed in the housing of the key module pushes the plunger to the upper stop position when no operating force is applied. If an operating force is exerted by a user, the plunger of the button module is pressed into the lower stop position, thereby reversibly compressing the elastic element.
- the key module may be, for example, the above-described key module according to the invention or else one of the known key modules described above.
- the slip-on element has a carrier element to which a first damping element for reducing the impact noise at the lower stop and a second damping element for reducing the impact noise are attached to the upper stop.
- First damping element and second damping element can also form a one-piece damping element or be part of a one-piece damping element. It may also be in the first and second damping element to the same damping element.
- the carrier element has means for attaching the Aufsteckelements on an outer side of the housing of the key module. These devices can be used, for example, as latching be formed elements which are latched or latched to the housing to r training a solid Verbind union.
- one or more of the locking elements may be formed as guide projections, ie they are shaped so that the plug-in element is already guided when the plug-on element is being pushed onto the housing in such a way that it assumes the intended position on the housing and assumes a defective position is prevented.
- the correct assembly and positioning of the slip-on element will be facilitated to one another and to others.
- the first damping element and / or the second damping element and / or the one-piece damping element can consist of elastic plastic, in particular of elastic plastic with predetermined hardness and / or of TPE, or can comprise it.
- the carrier element made of plastic, in particular of ABS or PA or PP or a plastic compound comprises or comprises one or more of the aforementioned plastics.
- the plug-on element u comprehensive carrier element and first Dämpfu ngselement and second damping element, and thus possibly also the one-piece damping element is made by two-component injection molding.
- the second damping element is designed to cooperate at the upper stop with an upper stop surface formed on the tappet in order to limit the linear movement of the tappet.
- the second damping element can form at least one protruding second projection, for example a knob or a circularly running sealing lip, for contacting the upper stop surface.
- the first Dämpfu ngselement may be formed to the lower stop with a lower Stop surface to limit the linear movement of the plunger to cooperate.
- the lower stop surface is formed on a key button which is attached to the plunger of the Tastenmodu ls and au outside the housing is arranged.
- the first Dämpfu ngselement at least one protruding first projection, such as a knob or a circular u m convincedde sealing lip, to r Kunststoffieru training of the lower stop surface.
- slip-on element according to the invention can also have embodiments described above with reference to the features described above with reference to the key module according to the invention.
- inventive plug-in elements and the inventive Tastenmodu le with this plug-in elements made possible union easy installation of Tastenmodu le, also a Nachrüstu ng of Tastenmodu len, len also the above-mentioned Tastenmodu, for example, the MX-Tastenmodu len, with the Aufsteckelementen is possible.
- the installation is simple and can also be performed by non-experts.
- the proposed solutions also have the advantage that they do not claim any spaces provided between the individual key modules in a keyboard, the keyboard layout is not changed in this respect.
- the slip-on elements of the proposed solutions, but also the housing of the proposed key modules can be produced inexpensively by conventional plastic injection molding.
- FIG 1 shows a first embodiment of a key module according to the invention and a slip-on element according to the invention, wherein FIG 1 a one-piece damping element, FIG 2 a support member, FIG 3 the slip-on with the one-piece damping element and the support member and FIG 4 the key module with the slip-on element shows
- FIG. 5 and FIG. 6 are sectional views and enlarged detail views of a second exemplary embodiment of a key module according to the invention and of an embodiment according to the invention.
- FIG 5 shows a lower stop position and FIG 6 shows an upper stop position of the plunger
- FIG 7 and 8 in sectional views and enlarged detail views of a third embodiment of a key module according to the invention, in which the one-piece damping element is integrated into the housing and thus no Aufsteckelement is provided, wherein FIG 7 shows a lower stop position and FIG 8 shows an upper stop position of the plunger.
- FIG 7 shows a lower stop position
- FIG 8 shows an upper stop position of the plunger.
- FIG. 1 to 4 show a perspective view of a first exemplary embodiment of a key module 1 according to the invention and a slip-on element 18 according to the invention.
- FIG. 1 shows a one-piece damping element 10 in isolation.
- the one-piece damping element 10 comprises a first damping element 8 which forms a lower stop 7 for a linear movement of the plunger 3 of the key module 1 shown in FIG.
- the one-piece damping element 10 comprises a second damping element 9, which forms an upper stop 6 for the linear movement of the plunger 3 of the key module 1.
- FIG. 2 shows a support element 19 in isolation
- FIG. 3 shows the support element 19 and the one-piece damping element 10 shown in FIG. 1.
- locking elements guiding lugs 20a are further provided which are shaped such that even when attaching the Aufsteckelements 18 on the housing 2, the slip-18 is guided so that it occupies the intended position on the housing 2 and the If a faulty position is prevented.
- This key module 1 with attached plug-on element 18 is shown in FIG. It can be seen that the already mentioned plunger 3 is moved out through an opening 15 in the housing 2.
- the plunger 3 is in an upper stop position 4, in which it is pressed without actuation force by a user by a housing 2, not shown in the drawings elastic element, such as a spring.
- elastic element such as a spring.
- These linear movement of the plunger 3 is stopped by the upper stop 6 formed by the second damping element 9, see FIG. 1.
- an upper stop surface (not shown) formed on the plunger 3 is pressed against the upper stop 6, formed by the second damping element 9. suppressed.
- FIG. 5 and FIG. 6 show, in sectional views and enlarged detail views, a second exemplary embodiment of a key module 1 according to the invention and a slip-on element 18 according to the invention.
- the key module 1 comprises a housing 2 and a plunger 3 arranged in the housing 2, which part projects through an opening 15 in the housing 2. Outside the housing 2, a button button 17 is provided, which is attached to a connecting device 16 of the plunger 3 on the plunger 3.
- the plunger 3 is linearly movable, wherein the linear movement is limited by an upper stop 6 and a lower stop 7.
- FIG. 5 and FIG. 6 illustrate this limitation of the linear movement. 5 shows a lower stop position 5 of the plunger 3, which is taken on actuation by a user by exerting an actuating force on the button button 17.
- the lower stop 7 is formed by a first damping element 8 and the upper stop 6 is formed by a second damping element 9.
- the first damping element 8 and the second damping element 9 are part of an integral Dämpfu ngselements 10 which surrounds the plunger 3 in an annular manner.
- FIG 5 and FIG 6 show that at the lower stop 7 u u ntere stop surface 12 which is formed on the key button 17, with the first Dämpfu ngselement 8 to r limitation of the linear movement of the plunger 3 cooperates.
- the first Dämpfu ngselement 8 has a protruding around the plunger 3 circumferential first Vorspru ng 13 to r Griffinieru ng the lower stop surface 12 on.
- At the top stop 6 acts on the plunger 3 formed upper stop surface I Ia with the second damping element 9 for Begrenzu ng the linear movement of the plunger stroke 3 together.
- the second damping element 9 is flat in the example dargestel example at the upper stop 6, without protruding projection.
- the one-piece Dämpfu ngselement 10 u maided the first Dämpfu ngselement 8 and the second Dämpfu ngselement 9 is next to a support member 19 part of the second Aus technologicalu ngsbeispiels a Aufsteckelements 18.
- the Aufsteckelement 18 is attached to the outer side of the housing 2, this are as Einrichtu lengths To m attaching locking elements 20 formed on the support member 19 which are latched in the illustrated plugged state with the housing 20.
- the attached to the housing 2 Aufsteckelement 18 u m serve the plunger 3 annular.
- 7 and 8 show a sectional view and enlarged detail views of a third embodiment of a key module 1 according to the invention.
- the key module 1 comprises a housing 2 and a plunger 3 arranged in the housing 2, which part projects through an opening 15 in the housing 2. Outside the housing 2, a key button 17 is provided, which is attached to a connecting device 16 of the tappet 3 on the plunger 3.
- the plunger 3 is linearly movable, wherein the linear movement is limited by an upper stop 6 and a lower stop 7.
- FIG. 7 and FIG. 8 illustrate this limitation of the linear movement. 7 shows a lower stop position 5 of the plunger 3, which is taken on actuation by a user by exercising an actuating force on the key button 17.
- FIG. 7 shows a lower stop position 5 of the plunger 3, which is taken on actuation by a user by exercising an actuating force on the key button 17.
- FIG. 8 shows an upper stop position 4 of the plunger 3, which is assumed by the user when the button button 17 is released, that is, no actuating force is exerted on the button button 17.
- the linear movement of the plunger 3 into the upper stop position 4 is caused by an elastic element, for example a spring (not shown) arranged between the plunger 3 and the housing 2, which presses the plunger 3 against the upper stop 6.
- the lower stop 7 is formed by a first damping element 8 and the upper stop 6 is formed by a second damping element 9.
- the first damping element 8 and the second damping element 9 are part of a one-piece damping element 10, which surrounds the plunger 3 in an annular manner.
- FIG. 7 and FIG. 8 show that a lower stop surface 12, which is formed on the key button 17, cooperates with the first damping element 8 to limit the linear movement of the plunger 3 at the lower stop 7.
- the first damping element Ment 8 has a protruding around the plunger 3 circumferential first projection 13 for contacting the lower stop surface 12.
- an upper abutment surface 11b formed on the plunger 3 interacts with the second damping element 9 to limit the linear movement of the plunger 3.
- the comparison of the plunger 3 of the embodiment of FIG 7 and FIG 8 with the plunger 3 of the embodiment of FIG 5 and FIG 6 shows that the plunger 3 are identical, but that different surfaces I Ia and I Ib of the plunger 3 as the upper stop surface be used.
- the second damping element 9 in the example shown has a protruding second stop 14 surrounding the plunger 3 for contacting the upper stop face 11b. But there are also shallow embodiments as shown in FIG 5 and FIG 6 possible.
- the one-piece damping element 10 comprising the first damping element 8 and the second damping element 9 is not attached to the housing 2 as part of a slip-on element. Rather, the one-piece damping element 10 is formed directly on the housing 2 and thus integrated into the housing 2 on the outside thereof.
- the housing 2 and the integral damping element 10 may be manufactured together by means of two-component injection molding.
- the slip-on element 18 comprising carrier element 19 and one-piece damping element 10 with first damping element 8 and second damping element 9 can be produced by means of two-component injection molding technology.
- the carrier element 19 may consist of plastic, in particular of ABS or PA or PP or a plastic compound comprising one or more of the aforementioned plastics, or comprise this.
- the one-piece damping element 10 with first damping element 8 and second damping element Fung element 9 may consist of elastic plastic, in particular made of elastic plastic with a hardness selected according to the respective requirements, for example of TPE, or include this. The latter also applies to the third embodiment.
- first damping element 8 and second damping element 9 which are combined to form a one-piece damping element 10, provides a significant damping of the impact noise both during operation and when you release the key button 17 of the key module 1 by the user.
Landscapes
- Push-Button Switches (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013110064.3A DE102013110064B4 (de) | 2013-09-12 | 2013-09-12 | Aufsteckelement für ein Tastenmodul |
PCT/EP2014/066933 WO2015036183A1 (de) | 2013-09-12 | 2014-08-06 | Tastenmodul und aufsteckelement für ein tastenmodul |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2941779A1 true EP2941779A1 (de) | 2015-11-11 |
EP2941779B1 EP2941779B1 (de) | 2016-10-12 |
Family
ID=51298762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14748208.7A Active EP2941779B1 (de) | 2013-09-12 | 2014-08-06 | Tastenmodul und aufsteckelement für ein tastenmodul |
Country Status (5)
Country | Link |
---|---|
US (1) | US9941067B2 (de) |
EP (1) | EP2941779B1 (de) |
CN (1) | CN105531784B (de) |
DE (1) | DE102013110064B4 (de) |
WO (1) | WO2015036183A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108779780A (zh) * | 2016-03-31 | 2018-11-09 | 三菱电机株式会社 | 电风扇 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9856737B2 (en) * | 2014-03-27 | 2018-01-02 | United Technologies Corporation | Blades and blade dampers for gas turbine engines |
TWI584324B (zh) * | 2015-09-08 | 2017-05-21 | 王爲明 | 鍵盤裝置 |
TWI631588B (zh) * | 2016-06-03 | 2018-08-01 | 技嘉科技股份有限公司 | 按鍵組件與包含其之鍵盤 |
DE102016121381A1 (de) * | 2016-11-08 | 2018-05-09 | Cherry Gmbh | Aufsteckelement zum Aufstecken auf ein Tastenmodul für eine Taste einer Tastatur und Tastenmodul für eine Taste einer Tastatur |
CN106653439A (zh) * | 2016-12-14 | 2017-05-10 | 上海创功通讯技术有限公司 | 按键安装结构、方法、按键组件及电子设备 |
DE102017128692A1 (de) * | 2017-12-04 | 2019-06-06 | Valeo Schalter Und Sensoren Gmbh | Bedienvorrichtung mit Geräuschdämpfung |
TWI826191B (zh) * | 2022-12-16 | 2023-12-11 | 群光電子股份有限公司 | 鍵盤裝置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3229465A1 (de) | 1982-08-06 | 1984-02-09 | Cherry Mikroschalter Gmbh, 8572 Auerbach | Tastenschalter |
DE3530050A1 (de) | 1985-08-22 | 1987-02-26 | Cherry Mikroschalter Gmbh | Tastenmodul fuer folientastaturen |
US5247143A (en) * | 1990-03-09 | 1993-09-21 | Canon Kabushiki Kaisha | Key switch |
EP0461283A1 (de) | 1990-06-13 | 1991-12-18 | ROBOTRON OPTIMA GmbH | Tastelement für ein Tastenfeld |
US5380969A (en) * | 1993-04-28 | 1995-01-10 | Sen-Cheng Wang | Computer key |
TW373796U (en) * | 1997-12-05 | 1999-11-01 | Acer Comm & Multimedia Inc | Keystoke structure |
US6876837B2 (en) * | 2000-04-21 | 2005-04-05 | Hitachi Kokusai Electric Inc. | Portable electronic equipment |
TW200809888A (en) * | 2006-08-15 | 2008-02-16 | Asia Optical Co Inc | Apparatus of compound key |
JP5684562B2 (ja) * | 2010-12-27 | 2015-03-11 | 東プレ株式会社 | キーボードスイッチ |
-
2013
- 2013-09-12 DE DE102013110064.3A patent/DE102013110064B4/de active Active
-
2014
- 2014-08-06 EP EP14748208.7A patent/EP2941779B1/de active Active
- 2014-08-06 US US15/021,569 patent/US9941067B2/en active Active
- 2014-08-06 WO PCT/EP2014/066933 patent/WO2015036183A1/de active Application Filing
- 2014-08-06 CN CN201480050541.3A patent/CN105531784B/zh active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108779780A (zh) * | 2016-03-31 | 2018-11-09 | 三菱电机株式会社 | 电风扇 |
Also Published As
Publication number | Publication date |
---|---|
US9941067B2 (en) | 2018-04-10 |
DE102013110064A1 (de) | 2015-03-26 |
US20160225552A1 (en) | 2016-08-04 |
CN105531784B (zh) | 2018-03-09 |
EP2941779B1 (de) | 2016-10-12 |
DE102013110064B4 (de) | 2018-07-05 |
WO2015036183A1 (de) | 2015-03-19 |
CN105531784A (zh) | 2016-04-27 |
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