EP1008160A1 - Tasteneinheit - Google Patents
TasteneinheitInfo
- Publication number
- EP1008160A1 EP1008160A1 EP98945204A EP98945204A EP1008160A1 EP 1008160 A1 EP1008160 A1 EP 1008160A1 EP 98945204 A EP98945204 A EP 98945204A EP 98945204 A EP98945204 A EP 98945204A EP 1008160 A1 EP1008160 A1 EP 1008160A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- holder
- unit according
- spring member
- key unit
- 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
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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for programme selection, e.g. control panels therefor; Arrangements for indicating programme parameters, e.g. the selected programme or its progress
- D06F34/30—Arrangements for programme selection, e.g. control panels therefor; Arrangements for indicating programme parameters, e.g. the selected programme or its progress characterised by mechanical features, e.g. buttons or rotary dials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/025—Light-emitting indicators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/18—Movable parts; Contacts mounted thereon
- H01H21/22—Operating parts, e.g. handle
- H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/036—Return force
- H01H2221/044—Elastic part on actuator or casing
Definitions
- the invention relates to a key unit made of plastic, with a key holder and at least one key with an associated spring element.
- Such key units are used, for example, as an operating element in front panels of household appliances such as washing machines, dishwashers and the like.
- the key unit is arranged between a panel and a circuit board equipped with electronic components such that the key lies in an opening in the panel and the key pressure can be transmitted by the spring member to a switch mounted on the circuit board.
- the spring element has the task of limiting the force transmitted to the switch so that the small switch and the circuit board are not damaged even when the button is pressed manually.
- the button and the spring element are arranged one above the other and mostly consist of different materials, they were previously manufactured as separate components.
- several keys are arranged side by side in the key unit.
- the parallel spring elements are connected to each other to form a so-called spring comb, while the keys and the key holder form a separate component that must then be connected to the spring comb by hand.
- the object of the invention is to reduce the assembly effort in the manufacture of the key unit.
- the key holder, the key and the spring member are formed in one piece and the button is connected to the spring member via a film hinge and can be folded back onto the latter.
- the entire key unit can thus be injection molded in one piece from plastic, the tool being designed in such a way that the spring element and the key are connected to one another in a stretched position via the film hinge, so that they lie essentially in one plane and are easy to develop. let them.
- the button is then returned to the spring link. folded so that the spring member can be acted upon by the button.
- the entire button unit can then be mounted on the bezel as a single component. There is therefore no additional work required for positioning and assembling buttons and spring members.
- the keys and the spring members in spite of the one-piece construction from different materials, so that the key can have a high mechanical strength and can consist of a relatively hard, easy-to-clean material, while for the spring member more flexible material is used.
- the button can also have a two-layer structure. This makes it possible to provide the key with a color-contrasting mark by using a different colored material for the lower layer of the key and forming an opening in the upper layer, which gives a view of the lower layer or of the material of the lower layer is filled.
- buttons are assigned a control lamp that is mounted on the console and whose light exits through a window or a light guide to the front of the panel.
- this window or the light guide is also produced in one piece with the other elements of the key unit.
- a transparent or translucent plastic material is then used as the second or third material component for the window or the light guide.
- a high-voltage part is also arranged on the circuit board, which includes relatively heavy components such as transformers and the like.
- the board in a board holder made of plastic.
- this board holder is in one piece with the other elements of the Key unit formed and connected to the key holder by another film hinge foldable.
- FIG. 1 shows a section through a front panel of a household appliance, a circuit board arranged behind the front panel and a key unit arranged between the front panel and the circuit board;
- FIG. 2 shows a section through the button unit according to FIG. 1 in the assembly position on an enlarged scale
- FIG. 4 shows the key unit in a view from the left in FIG. 3;
- Fig. 5 shows a section through a key unit according to another embodiment.
- a first embodiment of the invention is shown in Figures 1 to 4.
- a key unit 10 is mounted between a panel 12 of a household appliance and a circuit board 14 arranged parallel to the panel 12.
- the key unit 10 is made in one piece from plastic and has a key holder 16 in the form of a flat, box-shaped housing and a plurality of keys 18, each of which is assigned a spring element 20. In Figures 1 to 3 only one of the keys 18 and the associated spring member 20 can be seen.
- the board 14 carries a variety of electronic components. In the drawing Only a switch 22 and an associated control lamp 24 are shown.
- the key 18 and the spring member 20 are designed and arranged so that the switch 22 can be actuated via the spring member 20 using the button 18.
- the control lamp 24 is a light guide 26 made of transparent material, for example made of polymethyl methacrylate, assigned, which is integrally injected into the upper wall of the key holder 16 and with its free end fits into an opening provided in the panel 12, so that the control lamp 24 emitted light is directed to the front of the diaphragm 12.
- the button 18 is a bridge-shaped element, which is received with little play in an opening 28 of the panel 12 and is slightly raised compared to the front of the panel 12.
- the box-shaped key holder 16 is fastened to the cover 12 in a manner known per se, for example with the aid of latching means (not shown).
- the spring member 20 is a flat, inherently elastic tongue which lies flush in a bottom wall 30 of the key holder 16 and is separated from this bottom wall on three sides by an opening 32. At the free end, the spring member 20 carries a cam 34 for actuating the switch 22.
- the spring member 20 is extended beyond a wall 36 of the key holder by three webs 38, 40, 42, which are integrally connected via film hinges 44 and are each angled at right angles to the film hinges 44 in the mounting position according to FIG.
- the web 42 which extends parallel to and at a distance from the spring member 20 and covers the key holder 16 in the manner of a cover, carries the key 18 at the free end.
- the web 42 bends elastically, so that a plunger 46 formed on the button 18 presses on the spring member 20 and also deforms it elastically.
- the cam 34 thereby comes into contact with the switch 22 and actuates the switch. If the button 18 is depressed more strongly, the spring member 20 bends elastically, so that the force acting on the switch 22 is limited. Since the web 42 is supported on the wall 36 of the key holder, the key 18 resiliently springs back into its starting position as soon as it is released.
- FIGs 3 and 4 show the key unit 10 in the state in which it is removed from the injection mold.
- the film hinges 40 are stretched, and the webs 38, 40 and 42 lie in one plane with the spring member 20.
- the key 18 on the film hinges 40 is folded back onto the spring member 20.
- a latch 48 formed at the free end of the button 18 snaps into a latch 50 on the upper wall of the button holder 16 and thus holds the button in the installed position.
- the web 42 lies in a flat recess 52 of the wall 36 of the key holder so that the key in the transverse direction, i.e. in the direction perpendicular to the plane of the drawing in Figure 3, correctly positioned with respect to the spring member 20.
- a rib 54 (FIG. 2) molded onto this panel engages in a groove 56 of the web 42 and thus effects the positioning of the key 18 in the longitudinal direction, i.e. in the vertical direction in Figure 2.
- the button 18 is correctly aligned with respect to the opening 28 of the panel 12.
- this alignment can also be achieved by any other type of positive connection between the panel 12 and the web 42, for example by a slot instead of the groove 56 or by a rib on the web 42 and a groove or a slot in the panel.
- the key unit 10 is injection molded in one piece using the three-component process and accordingly consists of three different material components.
- the key 18 has a two-layer structure with an outer layer 58 and an inner layer 60.
- the outer layer 58 and the key holder 16 with the exception of the wall 36 are made of a relatively rigid material, for example made of ABS resin, which gives the key holder a high degree of dimensional stability there and also forms a relatively hard, smooth and dirt-resistant surface on the outer surface of the key 18.
- the lower layer 60 of the key 18, the spring element 20, the webs 38, 40 and 42 and the wall 36 of the key holder on the other hand, consist of a more flexible material, for example of polyoxymethylene (POM).
- POM polyoxymethylene
- the third material component is det the light guide 26.
- the upper layer 58 of the button 18 has an opening which is filled by a bead formed from the material of the lower layer 60. If the POM has a different color than the ABS resin, a color-contrasting marking 62 can be formed on the key 18.
- FIG. 5 shows a modified embodiment of the key unit 10, which additionally has an integrally molded circuit board holder 64 for receiving the circuit board 14.
- the circuit board holder 64 has the shape of a flat shell which is open at the top and is connected to the key holder 16 via two webs 66, each of which has two film hinges 68.
- the webs 66 which are also indicated by dash-dotted lines in FIG. 4, adjoin the key holder 16 on the side opposite the keys 18.
- the film hinges 68 are stretched in a similar way to the film hinges 40, and the circuit board holder 64 lies in one plane with the key holder 16 and the keys 18.
- the box-shaped key holder 16 and the board holder 64 are then open on opposite sides, so that both can be removed from the mold without any problems.
- the invention can also be further developed in such a way that the entire key unit with or without a circuit board holder is connected in one piece to the panel 12, for example via a further film hinge.
Landscapes
- Push-Button Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Telephone Function (AREA)
- Electrophonic Musical Instruments (AREA)
- Supports Or Holders For Household Use (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29715337U | 1997-08-27 | ||
| DE29715337U DE29715337U1 (de) | 1997-08-27 | 1997-08-27 | Tasteneinheit |
| PCT/EP1998/005073 WO1999010905A1 (de) | 1997-08-27 | 1998-08-11 | Tasteneinheit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1008160A1 true EP1008160A1 (de) | 2000-06-14 |
| EP1008160B1 EP1008160B1 (de) | 2002-02-27 |
Family
ID=8045143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98945204A Expired - Lifetime EP1008160B1 (de) | 1997-08-27 | 1998-08-11 | Tasteneinheit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6392179B1 (de) |
| EP (1) | EP1008160B1 (de) |
| BR (1) | BR9811399B1 (de) |
| DE (2) | DE29715337U1 (de) |
| PL (1) | PL191223B1 (de) |
| TR (1) | TR200000217T2 (de) |
| WO (1) | WO1999010905A1 (de) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001345030A (ja) * | 2000-05-31 | 2001-12-14 | Tokai Rika Co Ltd | スイッチノブ及びスイッチノブの製造方法 |
| DE10142503A1 (de) * | 2001-08-30 | 2003-03-20 | Bsh Bosch Siemens Hausgeraete | Elektrisches Küchengerät |
| JP3090037U (ja) * | 2002-05-16 | 2002-11-22 | 船井電機株式会社 | 操作ボタン一体式フロントパネル |
| ATE333705T1 (de) * | 2002-11-29 | 2006-08-15 | Valeo Sist Seguridad Y Cierre | Schalter zum öffnen von türen oder kofferraumdeckeln von kraftfahrzeugen |
| DE10307536B4 (de) * | 2003-02-21 | 2007-09-13 | Electrolux Home Products Corporation N.V. | Blende mit rechteckigem Tastenblock und Verfahren zu dessen Herstellung |
| US7247807B2 (en) * | 2003-07-07 | 2007-07-24 | Hewlett-Packard Development Company, L.P. | Button having stiffer vertical motion and reduced lateral motion |
| US6933454B2 (en) * | 2003-09-19 | 2005-08-23 | Matsushita Electric Industrial Co., Ltd. | Switching apparatus and vehicle-mounted electronic apparatus having the switching apparatus assembled therein |
| JP3871136B2 (ja) * | 2003-10-03 | 2007-01-24 | 船井電機株式会社 | スイッチ装置 |
| ES1056270Y (es) * | 2003-12-05 | 2004-06-16 | Plasticos Mondragon S A U | Conmutador universal. |
| JP4218605B2 (ja) * | 2004-07-21 | 2009-02-04 | ブラザー工業株式会社 | スイッチ装置及び画像形成装置 |
| US7247806B2 (en) * | 2004-10-18 | 2007-07-24 | Hewlett-Packard Development Company, L.P. | Computing device bezel and facia button therefor |
| AU2006312851A1 (en) * | 2005-11-11 | 2007-05-18 | Linak A/S | Electric hand control, especially for electrically adjustable hospital and care beds |
| US7960665B2 (en) * | 2006-02-02 | 2011-06-14 | Idec Corporation | Pushbutton switch device |
| JP2007281631A (ja) * | 2006-04-03 | 2007-10-25 | Funai Electric Co Ltd | リモートコントローラ |
| JP4703489B2 (ja) * | 2006-05-31 | 2011-06-15 | 株式会社東芝 | メンブレンスイッチ、キーボードおよびキーボードを有する電子機器 |
| WO2009121399A1 (en) * | 2008-04-01 | 2009-10-08 | Robert Bosch Gmbh | Hinge for a button assembly |
| PL2292135T3 (pl) * | 2009-09-03 | 2020-11-16 | Electrolux Home Products Corporation N.V. | Panel sterujący do urządzenia domowego |
| DE102009051617B3 (de) * | 2009-11-02 | 2011-04-28 | Pas Deutschland Gmbh | Taste für eine Bedienanordnung, sowie Bedienanordnung und Haushaltsgerät |
| CN102129927B (zh) * | 2010-01-20 | 2014-01-29 | 瀚宇彩晶股份有限公司 | 按键结构 |
| AU2012101034B4 (en) * | 2012-07-11 | 2012-09-06 | Gerard Lighting Pty Ltd | Switch Actuator |
| KR200474510Y1 (ko) * | 2013-02-18 | 2014-09-23 | 엘에스산전 주식회사 | 전자 개폐 장치 |
| JP2015149150A (ja) * | 2014-02-05 | 2015-08-20 | アルプス電気株式会社 | 揺動型スイッチ |
| DE102018102115A1 (de) * | 2018-01-31 | 2019-08-01 | Valeo Schalter Und Sensoren Gmbh | Bedienvorrichtung mit zwei durch einen Spalt beabstandete Bedienelemente in einem einstückigen Bedienelementträger, sowie Verfahren zum Herstellen einer Bedienvorrichtung |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2403983B2 (de) * | 1974-01-29 | 1976-06-10 | Schoeller & Co, Elektrotechnische Fabrik, 6000 Frankfurt | Drucktastenaggregat |
| US3952175A (en) | 1974-09-18 | 1976-04-20 | Oak Industries Inc. | Pushbutton switch mechanism having block out members with common mounting and discrete latch bar |
| FR2307453A7 (fr) * | 1975-04-10 | 1976-11-05 | Mecanismes Comp Ind De | Contacteur electrique simplifie |
| NL7612805A (nl) * | 1976-11-17 | 1978-05-19 | Gozen Spierenburg | Schakelaar voor een elektrische bel voor de voordeur van een huis. |
| DE3217138C2 (de) | 1982-05-07 | 1985-01-10 | Eberhard 8949 Hausen Burkart | Betätigungsvorrichtung für Schalteinrichtungen |
| US4701581A (en) * | 1986-09-15 | 1987-10-20 | United Technologies Automotive, Inc. | Housing including a test button secured thereto with a living hinge |
| US5055642A (en) | 1989-06-20 | 1991-10-08 | Mitsuku Denshi Kogyo Kabushiki Kaisha | Push button switch |
-
1997
- 1997-08-27 DE DE29715337U patent/DE29715337U1/de not_active Expired - Lifetime
-
1998
- 1998-08-11 DE DE59803215T patent/DE59803215D1/de not_active Expired - Lifetime
- 1998-08-11 BR BRPI9811399-2A patent/BR9811399B1/pt not_active IP Right Cessation
- 1998-08-11 TR TR2000/00217T patent/TR200000217T2/xx unknown
- 1998-08-11 US US09/486,061 patent/US6392179B1/en not_active Expired - Lifetime
- 1998-08-11 PL PL338861A patent/PL191223B1/pl not_active IP Right Cessation
- 1998-08-11 EP EP98945204A patent/EP1008160B1/de not_active Expired - Lifetime
- 1998-08-11 WO PCT/EP1998/005073 patent/WO1999010905A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9910905A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59803215D1 (de) | 2002-04-04 |
| BR9811399A (pt) | 2000-08-29 |
| PL191223B1 (pl) | 2006-03-31 |
| TR200000217T2 (tr) | 2000-06-21 |
| PL338861A1 (en) | 2000-11-20 |
| US6392179B1 (en) | 2002-05-21 |
| DE29715337U1 (de) | 1997-12-11 |
| WO1999010905A1 (de) | 1999-03-04 |
| EP1008160B1 (de) | 2002-02-27 |
| BR9811399B1 (pt) | 2010-12-14 |
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