EP0818048B1 - Elektrischer tastschalter - Google Patents
Elektrischer tastschalter Download PDFInfo
- Publication number
- EP0818048B1 EP0818048B1 EP96908016A EP96908016A EP0818048B1 EP 0818048 B1 EP0818048 B1 EP 0818048B1 EP 96908016 A EP96908016 A EP 96908016A EP 96908016 A EP96908016 A EP 96908016A EP 0818048 B1 EP0818048 B1 EP 0818048B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- steering wheel
- housing
- wheel according
- steering
- 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
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2231/00—Applications
- H01H2231/026—Car
Definitions
- the invention relates to a steering wheel with at least one electric push button.
- An electrical pushbutton switch is known from DE 71 38 974 U1, where a button is recessed in a housing is.
- the button is stored via an off-center Axis of rotation extending through the side walls of the button and of the housing extends. Between the vertical and parallel side walls of the button and the Housing is always a large one, the tolerances compensating Gap present.
- the gap is required to run smoothly To enable switching.
- the columns parallel to the axis of rotation also change their size. Dirt and foreign bodies can easily pass through the gap get into the push button.
- the flat design the key only allows it, the key only from one direction actuate. This negative effect is reinforced by that the button is embedded deep in the housing.
- the assembly of the push button switch is complex and expensive because the parts in the housing are difficult to insert are.
- the button still does not offer a clear target for an actuating force.
- the actuation force must be introduced perpendicular to the housing so that the Switching is also done clearly. In this respect are for positioning of such a push button switch set clear limits. Due to its design, it does not offer the possibility of more universal use and not the comfort of one different operation, achieving the same result.
- US-A-2 153 401 discloses an electrical one Switch that can be swiveled around a journal and two has offset actuating surfaces. The respective operating forces are in the implemented the same direction of action and brought about a switching function.
- the invention has for its object a steering wheel to create the type mentioned above, which is very easy to use with a simple structure and less expensive Manufacturing enables.
- the key switch assigned to the steering wheel in such a way that the actuating bead behind the steering wheel is approximately parallel and runs back to the steering rim. This ensures an optimal assignment of the button actuation areas to the fingers or the thumb.
- the housing is firmly connected to the steering wheel, the actuating surfaces the button through an aperture in the Project the steering wheel bowl surrounding the steering wheel hub and in the Area of the button no steering wheel spokes are provided.
- the button is therefore between two steering wheel spokes the steering wheel.
- the symbol area of the actuation area the button by one located below the button Luminous element can be illuminated.
- the lighting element is integrated in the push button.
- the actuating surfaces have tactile symbols on the button. Without inspection the button clearly recognizes the operator the function assigned to the key.
- each key rotatable on at least one bearing bracket fixed to the housing is attached, and housing-fixed swivel stops the swivel range the button.
- the coverage of the housing opening the key or keys prevent penetration of dirt in the electric key switch. At the same time builds the housing smaller with the same key surface.
- buttons and / or the housing are after another advantageous embodiment of the invention molded on sealing diaphragms which the gap between the housing and the respective Bridge the key. This provides further security against pollution. Also that is not wanted radiation prevented from light from that in the housing Light element is emitted.
- the contact unit is expediently at least one Printed circuit board carrying the light element, facing the button one which effects the electrical bridging and the Button resetting snap disk rests.
- Printed circuit board carrying the light element, facing the button one which effects the electrical bridging and the Button resetting snap disk rests.
- the shift finger located on the button preferably acts the snap disc, and this closes or opens at Activate the current paths on the circuit board, taking after End of actuation force the button under the spring action the snap disk assumes its starting position.
- the housing accommodating at least two buttons via electrical Lines as a switch unit having a connector is trained.
- a steering wheel 1 is shown, the one Switch unit 2 is assigned. Behind the steering wheel 1 the steering column 3, in which the steering column 4 is mounted, at the End of the steering wheel 1. Concentric to the steering wheel 1, the steering wheel hub 5 is arranged, the steering wheel bowl 6 surrounds. The steering wheel bowl 6 takes the airbag, the horn contact and an electrical connection system, through that the contact from the rotating steering wheel 1 to the fixed Steering column 3 is transmitted. The steering wheel 1 has one Steering ring 7, the steering wheel spokes 8 with the steering wheel hub 5 surrounding steering wheel 6 is connected.
- the switch unit 2, which is arranged in the steering wheel bowl 6, consists of two pushbuttons 9, one on each side the steering wheel 1 is arranged. Each of the push button switches 9 has three buttons 10, side by side and by the operator are arranged from visible.
- the key switch 9 has an approximately rectangular housing 11 with narrow sides 12 and long sides 13. On opposite Corners of the housing 11 is between each Narrow side 12 and a long side 13 a mounting flange 14 integrally formed with an embedded mounting hole 15. To stiffen the mounting flange 14 is located a strut 16 between the mounting flange 14 and the narrow side 12.
- the housing 11 is at its base 17th wider than the keys 10. Over a circumferential Slant 18 is the housing wall 19 reset, which on the the base 17 of the housing 11 facing away from the same Width as the key has 10.
- a base 20 is from the side the base 17 inserted into the housing 11 and fastened there. The base 20 does not cover the entire opening at the base 17 of the housing 11. Guide through a recessed space 22 electrical lines 23 therethrough.
- the bearing brackets 21 have an L-shape and thus set the key bearing 24 off-center to the housing 11.
- the two available for a key 10 Bearing brackets 21 are spaced apart from each other so far that they also guide the key 10 axially.
- the button 10 is activated via the switching elements 26 automatically reset.
- the key 10 thereby takes in the unactuated State the position shown in Fig. 5 is.
- the key 10 has on the opposite of the housing 11 Side a key cavity 27, which is from a Switch fingers 29 molded onto a key wall 28 is penetrated. All around is the key cavity 27 from the key edge 31 limited, which is opposite the housing wall 19 of the housing 1.
- the shift finger 29 is round and in cross section carries a switching cone at its end facing the housing 11 65, with which the switching process is initiated with pinpoint accuracy becomes.
- Each key 10 has an actuating bead 30 which is approximately aligned axially parallel to the key bearing 24 and from this is spaced.
- On both sides of the key edge 31 to the actuating bead 30 are the actuating surfaces 32 and 33.
- the actuating surfaces 32 and 33 run as the actuating bead 30 approximately axially parallel to Key bearing 24.
- Vertical to the key bearing 24 and from the rotating one Key edge 31 starting from are also perpendicular the actuating surfaces 32 and 33 key legs 34 in front.
- On each key leg 34 is followed by a bearing flange 35, into which a flange bore 36 is let.
- One on the storage bracket 21 attached journal 37 is in the flange bore 36 a.
- the key bearing 24 is shifted to the key edge 31 and is about a distance from it quarter of the length of the narrow sides 12. Between the key edge 31 and the housing top 38 is a Gap 39.
- the bearing bracket 21 fixed to the housing is designed so high that the key bearing 24 is approximately in the middle of the height of the gap 39 is located.
- Recessed handles 40 from which the fingertips or do not slip the tip of the thumb when operating.
- the push buttons 9 are attached to the steering wheel 1 so that the thumb 41 initiated operating force 42 on the key bearing 24 acts opposite operating surface 32, namely approximately perpendicular to the housing 11.
- the fingers 43 initiated actuating force 44 acts on the actuating surface 33, which is located on the side of the key bearing 24 and from the key edge 31 to the actuation bead 30 extends.
- the extent of the actuating surface 32 starts from Key edge 31 to the actuation bead 30, however opposite of the operating surface 33.
- the arrangement of the operating surfaces 32 and 33 with the actuating bead arranged between them 30 is approximately V-shaped, but with the actuating bead 30 off-center on button 10 more towards the key bearing 24 is located.
- the housing 11 of the key switch 9 attached in the area of the steering wheel 1.
- the attachment takes place in such a way that the hand around the steering ring 7 with her fingers 43 in front of the operating surface 33 and the Thumb 41 is in front of the actuating surface 32 and thus the Actuating force 42 or 44 can be initiated.
- the cheapest Arrangement is given when the actuation bead 30 approximately parallel to the steering wheel 7 at the level of the rear 45 of the steering wheel 7 is present.
- the back 45 of the Steering ring 7 is the side of the steering wheel facing away from the operator 1.
- the housing is 11 firmly connected to the steering wheel 1.
- the push button switch turns 9 with the steering wheel 1 with.
- the steering wheel 1 is in the area its steering wheel hub 5 surrounded by a steering wheel bowl 6, which also turns with the steering wheel 1.
- In the Steering wheel bowl 6 is an aperture 46, the only way is large that the buttons 10 of the key switch 9 with their actuating surfaces 32 and 33 and their actuation bead 30 there protrude through and are freely movable.
- the steering wheel bowl 6 also covers the area of the Housing 11 with the mounting flanges arranged thereon 14 from.
- the button switch 9 is attached to the steering wheel 1 always in a place where there are no steering wheel spokes 8 lie in front of the keys 10 of the key switch 9.
- the steering wheel 1 has a total four steering wheel spokes 8.
- the distance between two steering wheel spokes 8 is designed so that the keys 10 of the key switch 9 look directly between the two steering wheel spokes 8.
- On the operating surfaces 32 a symbol 47 is opened in each case, the gives an indication of the function of the associated key 10.
- the actuating surface 32nd button 10 has a translucent symbol surface 48.
- a light-emitting element 50 is applied in the form of an LED. Becomes If the light element 50 is activated, the light also shines through the symbol area 48 in the key 10.
- the non-illuminated State of the button 10 is the detection of the switching function by tactile applied to the actuating surfaces 32 and 33 Symbols (not shown).
- the housing 10 has a housing opening facing the keys 10 51 which is enclosed by the housing walls 19.
- the keys 10 arranged side by side cover the entire Housing opening 51. Between the individual buttons 10 a key gap 52 always remains free so that the keys 10 do not rub against each other.
- the key bearings 24 are parallel to the long sides 13 of the housing 11 aligned. To the key bearings 24 swivel keys 10 through a limited angle, which is fixed by pivot stops 53. The swing away the button 10 from the housing 11 is by the as Swing stop 53 serving swing latch limited.
- Swing stop 53 serving swing latch limited.
- Swing range limit reached. Swiveling the Key 10 is under by the impact of the shift finger 29 Interposition of the snap disk 58 on the circuit board 49 limited.
- buttons 10 are parallel to the long sides of the housing 11 molded in the key cavity 27 sealing diaphragms 56, which, are so long that they dip into the housing opening 51 and thus the gap 39 between the housing top 38 and cover the key edge 31. That of the lighting element 50 emitted light can therefore not over from the housing 11 emerge from the gap 39.
- the sealing diaphragm 56 has an opening, namely the bolt elongated hole 55 through which light can pass. To prevent that, is in this area on the housing 11 a bolt elongated hole 55 covering additional sealing screen 59 available.
- the contact unit 60 comprises a circuit board 49, a snap disk 58 and the lighting element 50 of the circuit board 50 soldered electrical lines 23, which led out of the housing 11 through the free space 22 are, the key switch 9 to the electrical system of a motor vehicle connectable.
- One of the actuating forces 42, 44 acts on the button 10, it swings against the force the spring unit 61 arranged in the housing 11 around the key bearing 24.
- the shift finger 29 presses the already slightly biased Spring unit 61 together. Since the spring unit 61 at the same time the snap disk 58 is, this snaps around and connects or disconnects current paths on the circuit board 49 ( Figure 6).
- the key 10 is used as a spring unit 61 serving snap disk 58 after the removal of the Actuating force 42 or 44 automatically in their starting position ( Figure 5) pivoted back.
- FIG 4 shows a switch unit 2, which consists of two push buttons 9 exists.
- Each of the key switches 9 carries three keys 10, of which two buttons 10 each have a symbol 47 are.
- Electrical run from the left button switch 9 Lines 23 to the right button switch 9.
- In the right Pushbutton switches 9 are lines 23 on circuit board 49 connected.
- Outgoing connection lines from the right pushbutton switch 9 63 end in connectors 64 with which the Switch unit 2 is connected to an electrical system.
Landscapes
- Steering Controls (AREA)
- Switches With Compound Operations (AREA)
Description
- Fig. 1
- eine Ansicht auf ein Lenkrad eines Kraftfahrzeuges mit erfindungsgemäßen elektrischen Tastschaltern,
- Fig. 2
- einen Schnitt durch das Lenkrad gemäß Fig. 1 in Richtung der Pfeile II-II,
- Fig. 3
- eine Anssicht auf das Lenkrad gemäß Fig. 1 in Richtung des Pfeiles III mit ausgebrochenem Lenkradkranz,
- Fig. 4
- eine perspektivische Ansicht auf eine aus elektrischen Tastschaltern nach der Erfindung zusammengesetzte Schaltereinheit,
- Fig. 5
- einen Schnitt durch einen unbetätigten elektrischen Tastschalter gemäß Fig. 4, entlang der Linie V-V und
- Fig. 6
- den elektrischen Tastschalter gemäß Fig. 5 im betätigten Zustand.
Claims (12)
- Lenkrad mit mindestens einem elektrischen Tastschalter (9) mit einem Schaltelemente (26) aufnehmenden Gehäuse (11) und mindestens einer selbsttätig rückstellenden sowie außermittig gelagerten Taste (10) mit einem Betätigungswulst (30) mit zwei gegenüberliegenden Betätigungsflächen (32, 33), auf die etwa parallel bzw. senkrecht zum Gehäuse (11) eingeleitete Betätigungskräfte (42, 44) die gleiche Wirkrichtung auf die Taste (10) haben, wobei der Tastschalter (9) derart im Bereich des Lenkrades (1) eines Kraftfahrzeuges befestigt ist, daß eine den Lenkkranz (7) des Lenkrades (1) umgreifende Hand mit ihrem Daumen (41) auf die eine mit einer Symbolfläche (48) versehene Betätigungsfläche (32) und mit ihrem Finger (43) auf die andere Betätigungsfläche (33) der Taste (10) einwirken kann.
- Lenkrad nach Anspruch 1, dadurch gekennzeichnet, daß der Tastschalter (9) derart dem Lenkkranz (7) zugeordnet ist, daß der Betätigungswulst (30) der Taste (10) hinter dem Lenkkranz (7) annhähernd parallel und zurückversetzt an dem Lenkkranz (7) verläuft.
- Lenkrad nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß Gehäuse (11) fest mit dem Lenkrad (1) verbunden ist, wobei die Betätigungsflächen (32, 33) der Taste (10) durch ein Blendenloch (46) in einer die Lenkradnabe (5) umgebenden Lenkradschüssel (6) hindurchragen und im Bereich der Taste (10) keine Lenkradspeichen (8) vorgesehen sind.
- Lenkrad nach Anspruch 3, dadurch gekennzeichnet, daß die Taste (10) sich zwischen zwei Lenkradspeichen (8) des Lenkrades (1) befindet.
- Lenkrad nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Symbolfläche (48) der Betätigungsfläche (32) der Taste (10) durch ein unterhalb der Taste (10) angeordnetes Leuchtelement (50) beleuchtbar ist.
- Lenkrad nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Betätigungsflächen (32, 33) der Taste (10) taktile Symbole aufweisen.
- Lenkrad nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß im Gehäuse (11) eine der oder den Tasten (10) zugewandte Gehäuseöffnung (51) vorhanden ist, die von der oder den Tasten (10) überdeckt wird, wobei jede Taste (10) an mindestens einer gehäusefesten Lagerlasche (21) drehbeweglich befestigt ist, und gehäusefeste Schwenkanschläge (52, 53) den Schwenkbereich der Taste (10) festlegen.
- Lenkrad nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß an den Tasten (10) und/oder dem Gehäuse (11) Dichtblenden (56, 59) angeformt sind, die den Spalt (39) zwischen dem Gehäuse (11) und der jeweiligen Taste (10) überbrücken.
- Lenkrad nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß im Gehäuse (11) eine mit elektrischen Leitungen (23) verbundene Kontakteinheit (60) vorgesehen und zwischen dem Gehäuse (11) und der Taste (10) eine die Rückstellung der Taste (10) bewirkende Federeinheit (61) eingespannt ist.
- Lenkrad nach Anspruch 9, dadurch gekennzeichnet, daß die Kontakteinheit (60) eine mindestens ein Leuchtelement (50) tragende Leiterplatte (49) ist, auf der der Taste (10) zugewandt eine die elektrische Überbrückung bewirkende und die Taste (10) zurückstellende Schnappscheibe (58) aufliegt.
- Lenkrad nach Anspruch 10, dadurch gekennzeichnet, daß ein an der Taste (10) angeordnete Schaltfinger (29) auf die Schnappscheibe (58) einwirkt und diese bei Betätigung die Strompfade auf der Leiterplatte (49) schließt oder öffnet, wobei nach Beendigung der Betätigungskraft (42, 44) die Taste (10) unter der Federwirkung der Schnappscheibe (58) ihre Ausgangsstellung einnimmt.
- Lenkrad nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß das mindestens zwei Tasten (10) aufnehmende Gehäuse (11) über elektrische Leitungen (23, 63) als eine Anschlußstecker (64) aufweisende Schaltereinheit (2) ausgebildet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19511878 | 1995-03-31 | ||
DE19511878A DE19511878A1 (de) | 1995-03-31 | 1995-03-31 | Elektrischer Tastschalter |
PCT/DE1996/000605 WO1996030921A1 (de) | 1995-03-31 | 1996-03-27 | Elektrischer tastschalter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0818048A1 EP0818048A1 (de) | 1998-01-14 |
EP0818048B1 true EP0818048B1 (de) | 1999-07-28 |
Family
ID=7758289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96908016A Expired - Lifetime EP0818048B1 (de) | 1995-03-31 | 1996-03-27 | Elektrischer tastschalter |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0818048B1 (de) |
DE (2) | DE19511878A1 (de) |
ES (1) | ES2136393T3 (de) |
WO (1) | WO1996030921A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19718979B4 (de) * | 1997-05-05 | 2007-11-08 | Delphi Technologies, Inc., Troy | Multifunktionstastschalter |
DE19726529C2 (de) * | 1997-06-23 | 2001-07-05 | Eaton Controls Gmbh | Elektrischer Tastschalter |
JP2001014986A (ja) * | 1999-07-01 | 2001-01-19 | Alps Electric Co Ltd | ステアリングホイール用のスイッチ装置 |
DE19936384A1 (de) * | 1999-08-03 | 2001-02-08 | Volkswagen Ag | Lichtschalter |
DE19956872B4 (de) * | 1999-11-26 | 2005-09-01 | Audi Ag | Lenkrad für ein Kraftfahrzeug |
US7762159B2 (en) | 2002-08-28 | 2010-07-27 | Alps Electric Co., Ltd. | Steering switch for vehicle |
JP4035401B2 (ja) * | 2002-08-28 | 2008-01-23 | アルプス電気株式会社 | 車載用ステアリングスイッチ |
DE202021002012U1 (de) | 2021-06-09 | 2021-06-22 | Claus Linder | Lenkrad mit einem Touchscreen-Bedienelement für Kraftfahrzeuge oder E-Auto, E-Automobil, Lastkraftwagen, Elektrolastkraftwagen oder Baumaschinen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2153401A (en) * | 1937-09-29 | 1939-04-04 | Gen Electric | Electric switch |
FR992792A (fr) * | 1949-08-12 | 1951-10-23 | App Et D Expl Des Etablissemen | Dispositif pour la commande de l'ouverture et de la fermeture de circuits électriques |
DE7634027U1 (de) * | 1976-10-28 | 1977-04-14 | Rohde & Schwarz, 8000 Muenchen | Momenttastenschalter |
DE3018247A1 (de) * | 1980-05-13 | 1981-11-19 | Robert Bosch Gmbh, 7000 Stuttgart | Lenkrad fuer kraftfahrzeuge |
DE4436291C1 (de) * | 1994-10-11 | 1995-09-28 | Opel Adam Ag | Kraftfahrzeuglenkrad |
-
1995
- 1995-03-31 DE DE19511878A patent/DE19511878A1/de not_active Withdrawn
-
1996
- 1996-03-27 ES ES96908016T patent/ES2136393T3/es not_active Expired - Lifetime
- 1996-03-27 WO PCT/DE1996/000605 patent/WO1996030921A1/de active IP Right Grant
- 1996-03-27 DE DE59602551T patent/DE59602551D1/de not_active Expired - Lifetime
- 1996-03-27 EP EP96908016A patent/EP0818048B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19511878A1 (de) | 1996-10-02 |
DE59602551D1 (de) | 1999-09-02 |
ES2136393T3 (es) | 1999-11-16 |
EP0818048A1 (de) | 1998-01-14 |
WO1996030921A1 (de) | 1996-10-03 |
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