EP0821380B1 - Spritzwassergeschützte Tastatur - Google Patents
Spritzwassergeschützte Tastatur Download PDFInfo
- Publication number
- EP0821380B1 EP0821380B1 EP97109688A EP97109688A EP0821380B1 EP 0821380 B1 EP0821380 B1 EP 0821380B1 EP 97109688 A EP97109688 A EP 97109688A EP 97109688 A EP97109688 A EP 97109688A EP 0821380 B1 EP0821380 B1 EP 0821380B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rubber mat
- keyboard
- edge
- housing
- openings
- 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.)
- Expired - Lifetime
Links
- 230000004888 barrier function Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 14
- 239000011888 foil Substances 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000012528 membrane Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/002—Casings sealed
- H01H2223/004—Evacuation of penetrating liquid
Definitions
- the invention relates to a splash-proof keyboard with a bottom shell Housing and contacts arranged flat in the housing, via which one Rubber mat with overlying the contacts, by means of push buttons Contact is made with deformable rubber domes.
- the contacts are z. B. arranged on a switching sheet lying below the rubber mat. construction and operation of such a rubber mat including switching film are such. B. described in DE-OS-44 42 073.
- the Housings usually consist of a base shell and a housing upper part, which is provided with a large number of openings through which Protruding keys or key buttons. These are the ones that support the contacts PCB attached. There are slit-like spaces around the buttons, so that the buttons can move freely. Through these slots Liquid penetrate if spilled on the keyboard, especially if the keypad is for design or ergonomic reasons Reasons a little lower than the circumferential edge of the keyboard.
- Waterproof keyboards are known per se, but they are usually constructed such that the interior of the keyboard is completely waterproof against the outside space is sealed, and also the individual buttons are waterproof be carried out.
- the waterproofness of such keyboards can can only be achieved through expensive design measures, e.g. the provision additional sealing mats, or the casting or gluing of foils in so-called membrane keyboards.
- the invention is therefore based on the object of being splash-proof Keyboard according to the preamble of claim 1, in which the housing a standard keyboard with as few design changes as possible undergoes in order to achieve increased splash water resistance.
- the rubber mat with a circumferential, extending edge is provided so that a tub is formed, being in the rubber mat, preferably on the front and / or rear edge, drain openings are arranged, and wherein the drain openings in assigned and open shell openings in the Open the bottom shell of the housing.
- the upper part of the housing with the base shell by snap-locking connected, which reach through the rubber mat, is for one Another embodiment of the invention provided that the rubber mat with further upwardly extending edges is provided around the Snap catches run around.
- the rubber mat in the area of the drain openings can also be used in the shell openings be provided in the bottom wall protruding drip edges. It it is also provided that the circumferential edge at an inclined Rubber mat is raised towards the lower edge.
- this peripheral edge engages in a slot-shaped free space, that of an upwardly extending edge section of the base shell and one that runs down from the upper part of the housing onto the rubber mat Reinforcing rib is formed.
- a sealing lip is formed on the edge facing away from the user through the reinforcement rib on the rubber mat on the upper part of the housing causes an additional seal to the switching film.
- an inventive splash-proof keyboard provided that on the rubber mat in the area between a rear row of buttons and the front row of buttons special drainage barriers on the top of the Rubber mats are molded, each from a thickened area to theirs taper the outer ends away from the back row of buttons, for liquid that has penetrated into the area of the rear row of buttons through passage openings located between the individual drainage control barriers through to the front drain holes on the keyboard to be able to.
- the section shown in Fig. 1 through a membrane keyboard 10 shows that the keyboard housing from an upper housing part 12 and a bottom shell 14 exists, which are connected to one another with the aid of snap catches 16.
- a switching foil 18 on a rigid circuit board which a rubber mat 20 is arranged.
- a rubber mat 20 is arranged in the bottom shell 14 .
- Switch domes 22 are provided in the rubber mat, from above Switch plunger each of a button (not shown) acts in a Key holder 24 is inserted.
- the keyboard can, as shown in Fig. 1, a rear separate row of keys for function keys, also on a board with a Switching film a separate rubber mat 26 is attached.
- Both the rubber mat 20 and the rubber mat 26 for the function keys is provided with a peripheral edge 28, the upper edge is preferably above the upper level of the switching domes 22.
- the switching film 18 or the rubber mat 20 is in a level to the desk that has an inclination of approximately at least 6 °. This creates a gradient, so that penetrated through the key holder 24 Liquid within that formed by the peripheral edge 28 Tub flows down to the user side.
- FIGS. 2 and 3 are on the user-side edge of the tub Drainage openings 30 provided in the openings 32 in the bottom shell 14 open and with a drip edge 34 ensure that penetrated Drain liquid through these drainage openings and the shell openings 32 can.
- the peripheral edge 28 of the rubber mat 20, which also like the rubber mat is flexible, can be stabilized in that it is in a slit-shaped Free space 36 engages through reinforcing ribs 38 in the upper housing part 12 and edge portions 40 on the bottom shell 14 is limited. Thereby the vertical position of the peripheral edge is ensured.
- a sealing lip 44 is attached in the area below the reinforcing ribs 38 is that in the locked state of the upper housing part 12 and the bottom shell 14 pressed against the bottom shell by the reinforcing ribs 38 is, and by appropriate shaping of the switching film on the board represents an additional seal to the switching film 18.
- a circumferential edge is provided, which is approx. 6 mm high.
- this can Border from the area facing away from the operator side to the operator side be additionally increased.
- FIG. 4 shows a view corresponding to the illustration shown in FIG. 2 a safety mat lying in a floor pan with additional drainage control barriers 50, 51, 52 in the area of a rear row of keys. Between the in 4, three drain control barriers 50, 51, 52 shown as examples are two Through openings 53, 54 are formed. The one on the top of the rubber mat molded drainage control barriers 50, 51, 52 each run from a thickened one Area 50a, 51a, 52a towards the outer ends and from the rear Row of buttons pointed away, in the area of the rear row of buttons penetrated liquid through the passage openings 53, 54 through to be able to lead away the front drain openings of the keyboard.
- the measures of the invention advantageously achieve that Liquid that has entered the keyboard is initially in the tub collects and can flow to the front. This will penetrate the Liquid from the z. B. held as a switching foil contact surface safely and protect them against contact failures. Since the breakthroughs in the rubber film in the area of the snap catches with corresponding edges are provided for liquid that has penetrated through the key holder no way to get to the switching film.
- the measures of the invention are for conventional standard keyboards usable without expensive design measures, so that there is an inexpensive Solution for splash-proof keyboards results. Based on Experiments have shown that even with large amounts of liquid spilled the keyboard can be safely protected against failures, as the Rubber mat open areas no more liquid penetrates than through the drain openings 30 can drain. Another advantage is the fact that the invention can be implemented without plastic injection molding make complicated housings on a standard keyboard to have to.
- the drainage openings are all in plastic injection molding easier to manufacture lower housing part, and can in easier Way via additional slide or inserts in the corresponding plastic injection mold can be realized inexpensively.
Landscapes
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Description
- Fig. 1
- einen Schnitt durch eine spritzwassergeschützte Folientastatur;
- Fig. 2
- eine Draufsicht auf die in einer Bodenschale liegende Schaltmatte einer geöffneten Folientastatur;
- Fig. 3
- einen vergrößerten Teilschnitt durch den bedienerseitigen Rand der Folientastatur entlang der Linie III - III der Fig. 2; und
- Fig. 4
- eine der in Fig. 2 gezeigten Darstellung entsprechende Ansicht auf eine in einer Bodenschale liegende Schaltmatte mit zusätzlichen Abflußlenkbarrieren im Bereich der hinteren Tastenreihe.
Claims (9)
- Spritzwassergeschützte Tastatur mit einem eine Bodenschale (14) aufweisenden Gehäuse (12, 14) und im Gehäuse flächig angeordneten Kontakten, über welchen mindestens eine Gummimatte (20) mit über den Kontakten liegenden und durch Tastenstößel zur Kontaktgabe verformbaren Schaltdomen (22) verläuft, wobei in der Gummimatte zum Sammeln und Ableiten von eingedrungener Flüssigkeit dienende Strukturen ausgebildet sind,
dadurch gekennzeichnet,daß die mindestens eine Gummimatte (20) mit einem umlaufenden, nach oben sich erstreckenden Rand (28) versehen ist, so daß sich eine Wanne bildet,daß in der mindestens einen Gummimatte, vorzugsweise am vorderen und/oder hinteren Rand, Abflußöffnungen (30) angeordnet sind, unddaß die Abflußöffnungen (30) in zugeordnete, nach außen offene Schalendurchbrüche (32) in der Bodenschale (14) des Gehäuses (12, 14) münden. - Tastatur nach Anspruch 1,
dadurch gekennzeichnet, daß die mindestens eine Gummimatte (20) mit weiteren nach oben sich erstreckenden Rändern (28) im Bereich von Fixierzapfen und/oder Schnapprasten (16) zum Verbinden der Bodenschale mit dem Gehäuseoberteil versehen ist. - Tastatur nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die mindestens eine Gummimatte (20) im Bereich der Abflußöffnungen (30) mit in die Schalendurchbrüche (32) ragenden Tropfrändern (34) versehen ist. - Tastatur nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß am vorderen Wannenrand Abflußlenkbarrieren in Form trapezförmiger und leicht erhabener Konturen (48) angeformt sind, die ein zusätzliches Gefälle in Richtung auf die Abflußöffnungen (30) aufweisen. - Tastatur nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß der umlaufende Rand (28) bei einer geneigt verlaufenden Gummimatte (20) zum tieferliegenden Rand hin erhöht ist. - Tastatur nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß zumindest der untere Rand der mindestens einen Gummimatte (20) an einem entsprechend hohen und zum umlaufenden Rand parallel verlaufenden Randabschnitt der Bodenschale (14) anliegt. - Tastatur nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß der umlaufende Rand (28) in einen schlitzförmigen Freiraum (36) eingreift, der von einem nach oben verlaufenden Randabschnitt (40) der Bodenschale (14) und einer vom Gehäuseoberteil (12) nach unten auf die mindestens eine Gummimatte (20) hin verlaufende Verstärkungsrippe (38) gebildet wird. - Tastatur nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß auf der Unterseite der mindestens einen Gummimatte (20) eine Dichtlippe (44) angeformt ist, die durch eine auf der mindestens einen Gummimatte aufliegende Verstärkungsrippe (38) am Gehäuseoberteil eine zusätzliche Abdichtung zur Schaltfolie (18) hin bewirkt. - Tastatur nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß in dem vom Benutzer abgewandten hinteren Tastaturbereich nebeneinanderliegende Abflußlenkbarrieren (50, 51, 52) auf der Oberseite der Gummimatte ausgeformt sind, die jeweils von einem verdickten Bereich (50a, 51a, 52a) zu außen liegenden Enden hin und vom hinteren Bereich der Tastatur weg spitz zulaufen, um dadurch im Bereich der hinteren Tastenreihe eingedrungene Flüssigkeit durch zwischen den einzelnen Abflußlenkbarrieren (50, 51, 52) liegende Durchlaßöffnungen (53, 54) hindurch zu den vorderen Abflußöffnungen (30) der Tastatur hin wegleiten zu können.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19626626 | 1996-07-02 | ||
| DE19626626A DE19626626C2 (de) | 1996-07-02 | 1996-07-02 | Spritzwassergeschützte Tastatur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0821380A1 EP0821380A1 (de) | 1998-01-28 |
| EP0821380B1 true EP0821380B1 (de) | 2001-10-04 |
Family
ID=7798717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97109688A Expired - Lifetime EP0821380B1 (de) | 1996-07-02 | 1997-06-13 | Spritzwassergeschützte Tastatur |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5810491A (de) |
| EP (1) | EP0821380B1 (de) |
| DE (2) | DE19626626C2 (de) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29809633U1 (de) * | 1998-05-28 | 1998-08-06 | Siemens Nixdorf Inf Syst | Tastaturgehäuse |
| TW413781B (en) * | 1998-06-26 | 2000-12-01 | Acer Peripherals Inc | Push-button keyboard capable of being installed with strengthened plates having different thickness |
| TW385891U (en) | 1998-07-07 | 2000-03-21 | Acer Peripherals Inc | Water-proof keyboard |
| TW371501U (en) * | 1998-07-07 | 1999-10-01 | Acer Comm & Multimedia Inc | Keyboard structure |
| JP2000112629A (ja) * | 1998-09-30 | 2000-04-21 | Alps Electric Co Ltd | キーボード装置 |
| US6156983A (en) * | 1999-04-01 | 2000-12-05 | Chicony Electronics Co., Ltd. | Water-proof keyboard |
| DE19961728C1 (de) * | 1999-12-21 | 2001-08-30 | Kostal Leopold Gmbh & Co Kg | Elektrischer Schalter |
| US6633986B1 (en) * | 2000-03-13 | 2003-10-14 | Hewlett-Packard Development Company, L.P. | Liquid spill-sensing keyboard which shuts down when a liquid spill is detected |
| US6443644B1 (en) | 2000-03-17 | 2002-09-03 | Minebea Co., Ltd. | Spill resistant keyboard |
| US6398436B1 (en) * | 2000-04-12 | 2002-06-04 | International Business Machines Corporation | Spill protection for electronic devices |
| US7161098B2 (en) * | 2001-04-02 | 2007-01-09 | Lenovo (Singapore) Pte. Ltd. | Method and system for sticky key prevention for keyboard or keypad devices |
| DE10136520A1 (de) * | 2001-07-26 | 2003-02-20 | Siemens Ag | Tastaturmatte |
| KR100539811B1 (ko) * | 2001-09-22 | 2006-01-10 | 엘지전자 주식회사 | 노트북 컴퓨터 |
| US6705782B2 (en) * | 2001-12-27 | 2004-03-16 | Chicony Electronics Co., Ltd. | Keyboard for computer system |
| US6644874B2 (en) * | 2002-01-04 | 2003-11-11 | Chicony Electronics Co., Ltd. | Keyboard with liquid-draining function |
| DE20200233U1 (de) * | 2002-01-08 | 2003-02-20 | Siemens Ag | Geschütztes Anzeige- und Bediengerät |
| US6705783B1 (en) | 2002-10-11 | 2004-03-16 | James H. Bowen | Ruggedized keyboard with cursor positioning device |
| DE10260305A1 (de) * | 2002-12-20 | 2004-07-15 | Siemens Ag | HMI Einrichtung mit einem optischem Touch Screen |
| US6917000B2 (en) * | 2003-01-17 | 2005-07-12 | Lite-On Technology Corporation | Signal input device |
| DE102004014935B3 (de) * | 2004-03-26 | 2005-11-03 | Siemens Ag | Bedienteil für Installationstechnik |
| TWM276311U (en) * | 2005-04-19 | 2005-09-21 | Quanta Comp Inc | Keyboard module heat dissipation film |
| JP4585397B2 (ja) * | 2005-07-21 | 2010-11-24 | 株式会社東芝 | 電子機器 |
| JP4703308B2 (ja) * | 2005-07-29 | 2011-06-15 | 株式会社東芝 | 電子機器 |
| JP4597041B2 (ja) * | 2005-11-21 | 2010-12-15 | 株式会社リコー | 操作パネル及び画像形成装置 |
| TWI320900B (en) * | 2006-01-18 | 2010-02-21 | Darfon Electronics Corp | Key operated apparatus having shield and method of making the same |
| JP4947348B2 (ja) * | 2006-09-13 | 2012-06-06 | アイシン精機株式会社 | 車両用ドアハンドル装置 |
| WO2010032151A1 (en) * | 2008-09-19 | 2010-03-25 | Koninklijke Philips Electronics, N.V. | Control panel overlay for diagnostic ultrasound equipment |
| DE202010004741U1 (de) | 2010-04-09 | 2010-07-15 | GETT Gerätetechnik GmbH | Tastatur für den Einsatz in hygieneintensiven Bereichen |
| FR2972970B1 (fr) * | 2011-03-21 | 2014-08-15 | Delphi Tech Inc | Panneau de commande |
| TWI435353B (zh) * | 2011-08-24 | 2014-04-21 | Wistron Corp | 具有液體排出功能之鍵盤裝置及其電子模組 |
| CN103426675B (zh) | 2012-05-25 | 2015-10-14 | 光宝电子(广州)有限公司 | 防水键盘 |
| JP7119808B2 (ja) * | 2018-09-13 | 2022-08-17 | オムロン株式会社 | 遊技機用押しボタン |
| CN111491470B (zh) * | 2020-03-30 | 2021-08-24 | 海信视像科技股份有限公司 | 显示设备 |
| CN115206718A (zh) * | 2021-04-13 | 2022-10-18 | 宁波奥克斯电气股份有限公司 | 一种具有防卡键结构的按键、遥控器和电子设备 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3657492A (en) * | 1970-09-25 | 1972-04-18 | Sperry Rand Corp | Keyboard apparatus with moisture proof membrane |
| DE3142367A1 (de) * | 1981-10-26 | 1983-05-05 | Siemens AG, 1000 Berlin und 8000 München | Kontaktmatte fuer elektrische geraete |
| US4980522A (en) * | 1988-06-13 | 1990-12-25 | Mitsubishi Denki Kabiushiki Kaisha | Operating key switch unit |
| DE9010784U1 (de) * | 1990-07-19 | 1990-10-04 | Silitek Corp., Taipeh/T'ai-Pei | Taste |
| DE4111680C2 (de) * | 1991-04-10 | 1997-09-04 | Juelich Werner | Tastenfeld für eine Tastatur |
| US5172805A (en) * | 1991-05-23 | 1992-12-22 | Northern Telecom Limited | Pushbutton and carrying member combination for operating an electronic switching device |
| US5180237A (en) * | 1992-06-23 | 1993-01-19 | Getac Corporation | Keyboard for under water use |
| DE9303837U1 (de) * | 1993-03-16 | 1993-07-01 | Preh-Werke GmbH & Co KG, 8740 Bad Neustadt | Tastatur |
| DE4442073C2 (de) * | 1994-11-25 | 2001-10-18 | Cherry Mikroschalter Gmbh | Tastatur mit Metallplatte |
| EP0685860A1 (de) * | 1994-06-03 | 1995-12-06 | Hewlett-Packard Company | Abgedichtete und Rückseitig beleuchtete Langhubtastatur |
| US5421659A (en) * | 1994-09-07 | 1995-06-06 | Liang; Hui-Hu | Keyboard housing with channels for draining spilled liquid |
| US5674018A (en) * | 1994-12-23 | 1997-10-07 | Essex Electronics, Inc. | Weatherproof electronic keypad with replaceable graphics overlay |
| DE19505852C1 (de) * | 1995-02-21 | 1996-05-15 | Preh Elektro Feinmechanik | Tastenfeld mit Schutzfolie |
| US5706168A (en) * | 1995-07-07 | 1998-01-06 | Itronix Corporation | Impact-resistant notebook computer having hard drive mounted on shock-isolating mounting bridge and impact attenuating covering |
| US5681122A (en) * | 1996-02-20 | 1997-10-28 | Ncr Corporation | Fluid isolation and dispersion system for tactile input devices |
-
1996
- 1996-07-02 DE DE19626626A patent/DE19626626C2/de not_active Expired - Fee Related
-
1997
- 1997-06-13 DE DE59704762T patent/DE59704762D1/de not_active Expired - Fee Related
- 1997-06-13 EP EP97109688A patent/EP0821380B1/de not_active Expired - Lifetime
- 1997-06-30 US US08/885,784 patent/US5810491A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5810491A (en) | 1998-09-22 |
| EP0821380A1 (de) | 1998-01-28 |
| DE19626626A1 (de) | 1998-01-08 |
| DE19626626C2 (de) | 2000-08-03 |
| DE59704762D1 (de) | 2001-11-08 |
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