EP2282250A1 - Thumbwheel - Google Patents
Thumbwheel Download PDFInfo
- Publication number
- EP2282250A1 EP2282250A1 EP10008168A EP10008168A EP2282250A1 EP 2282250 A1 EP2282250 A1 EP 2282250A1 EP 10008168 A EP10008168 A EP 10008168A EP 10008168 A EP10008168 A EP 10008168A EP 2282250 A1 EP2282250 A1 EP 2282250A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- switch
- carrier housing
- switch according
- light guide
- 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
- 239000003086 colorant Substances 0.000 claims abstract description 8
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 5
- 229920006352 transparent thermoplastic Polymers 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 3
- 230000007935 neutral effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000004382 potting Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 210000003811 finger Anatomy 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000003813 thumb Anatomy 0.000 description 4
- 241001124569 Lycaenidae Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
- G05G1/105—Details, e.g. of discs, knobs, wheels or handles comprising arrangements for illumination
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G25/00—Other details or appurtenances of control mechanisms, e.g. supporting intermediate members elastically
- G05G25/04—Sealing against entry of dust, weather or the like
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/05—Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/025—Light-emitting indicators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
- H01H9/182—Illumination of the symbols or distinguishing marks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/04—Cases; Covers
- H01H23/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
Definitions
- the present invention relates to an electrical switch for use on multiple controls in the field of commercial vehicles, the control panel performs a rotational movement about a limited angle and is directly actuated by a solid body outside the switch, comprising a carrier housing and a thumbwheel comprising a control panel, at least one light source and a light guide, wherein the control panel is formed depending on the working position in different colors illuminated.
- the respective operating fingers have only a relatively small range of motion, as the rest of the hand on the multiple control element, also called joystick, must remain.
- the operating direction of the thumbwheel is regularly approximately orthogonal to the longitudinal axis of the multiple control element, following the natural movement of the thumb of a gripping hand.
- the EP 1 246 040 describes a multi-function handle with individual pressure switches for earthmoving machinery such as excavators.
- the EP 1 288 763 describes a multi-function handle for an agricultural vehicle such as a combine having only push-buttons.
- a rotary electric switch describes the DE 10 2007 033 911 A1 ,
- the switch described therein has a hollow inside, arranged on a hub thumbwheel, in which the light of the single light source is passed through a prismatic light distributor on the single back-lightable area of the thumbwheel, rotate over the rotation state dependent different symbols.
- the known light distributor is either colored or it decomposes the light of the single light source spectrally, in order to backlight the only backlit signal surface in different colors.
- the light guide has a spatially large light collection side and a single, compared to the light collection side spatially small, light exit end, so that it is the control panel in each of its deflection states with light spatially separated bulbs or a single light source illuminating.
- the present invention provides a lit, rotatable by a limited angle rotary switch, which indicates the operator in the dark or in low light conditions, the current position and thus the switching state by light safely. It is particularly advantageous if the switch is not only illuminated as such, but this lighting is formed depending on the working position, that is formed differently depending on the working position of the switch. The operator can therefore easily determine at a glance in which operating position the rotary switch according to the invention is at a certain time.
- the switch according to the invention is provided for operation by a thumb or an index finger of an operator, wherein it is arranged erster admiration on the front side of a multi-function handle and otherwise on the back of the multi-function handle.
- the light guide allows with great advantage the decoupling of mechanical rotation and place of light generation, so that no cables or the like must be carried along in the mechanical rotary motion.
- the optical waveguide is designed such that it receives light from one or more light sources at one and / or a plurality of spatially distant locations and is forwarded to the operating part.
- light sources emitting differently colored light can advantageously be arranged spatially separated from one another, so that even large rotational movements of the operating part are still possible cause the light of a light source to be collected, conducted and emitted on the control panel.
- the light guide is formed by the carrier housing itself by being formed of transparent thermoplastic material.
- the use of the transparent thermoplastic material according to the invention enables a simple production of the carrier housing by injection molding and advantageously reduces the number of parts required, so that it is possible to dispense with an independent light guide next to the transparent light-conducting carrier housing.
- a further light guide is provided between the carrier housing and exit point of the light on the control panel so that the light emitted by the bulbs light inside the carrier housing collected by the carrier housing and in the further light guide is largely unchanged in color and scattering coupled to Lichtaustrittsart on the control panel.
- the control unit has a neutral and two or more working positions, in particular an upper and lower stop with interposed neutral center position.
- more than two working positions for example four working positions with a neutral middle position, are also conceivable.
- a neutral end position is conceivable and adjoining differently illuminated operating positions. This is always useful if you want to control work processes with this switch, which always have to be processed in the same order, so that one work step is always followed by the second, third etc. step, if necessary also in the reverse order back to the initial or neutral position.
- the embodiments of the switch as a momentary switch with provision or as described as a latching switch with multiple switch positions or combinations thereof.
- the carrier housing carries a printed circuit board, in particular an SMD-equipped printed circuit board, which in turn carries lamps and that the carrier housing has a light guide.
- the printed circuit board, in particular SMD-equipped printed circuit board is arranged in the interior of the carrier housing, so that it is largely protected from external influences such as in particular dust and moisture and mechanical stress.
- the printed circuit board carries lighting means, which according to the invention may be LEDs, for example, but need not.
- the light guide provided on or in the carrier housing collects the light of the one or more light sources and is therefore also mechanically protected. According to the invention, the light guide can also be part of the carrier housing itself.
- control unit is arranged on a support shaft of the carrier housing and has means for limiting the rotational movement.
- the control panel serves to adjust the operating state of the switch, this is structurally the simplest way in that it is arranged on a central, coaxial support shaft of the support housing. If it has means for limiting the rotational movement, incorrect operation of the switch according to the invention can be avoided since mechanical forces can not be exerted excessively. In particular, when a return spring is provided for returning the deflected operating part in its rest position between the carrier housing and the setting wheel, the restoring force can be applied very easily.
- a wheel cover is fastened to the control unit, in particular a wheel cover snapped onto the control panel, wherein preferably a light conductor is provided and supported between the wheel cover and the control panel, a particularly efficient, structurally simple and permanent solution is made possible.
- a simple and advantageous embodiment of the light guide provides that this is designed as a bent and rotated in the installed position by 180 ° T.
- the crosspiece of the T in the form of a cylinder jacket section forms a spatially large light collecting side which, even with strong deflection of the operating element, still captures the light of a luminous means and initiates at its single light exit end into a control element, for example a wheel cover.
- the switch according to the invention is able to produce both angle-dependent and function-dependent lighting situations on the control panel with great advantage.
- the light of another and differently colored light source reaches the light exit end via the light guide and illuminates the control panel so that it is illuminated in an angle-dependent manner.
- the switch according to the invention is also functionally illuminated by different luminescent colors can be displayed in one and the same working position of the control panel. This is always advantageous if, with an actuation of the switch, a work process is triggered from several automatically successive steps, such as gripping, pivoting and releasing.
- the individual stages of operation are displayed by changing colors of a single light source, for example, the sequence green-yellow-red of a multicolour LED.
- Electro-technically particularly advantageous is the design of the switch as a non-contact switch, in particular Hall or reed switch, as this reduces the number of parts required and at the same time allows a reliable and long-lasting switch as possible.
- the assembled printed circuit board is formed mechanically protected from penetrating dust or moisture, so that their life is not shortened even under the rough conditions of the invention.
- this mechanical protection can be achieved by casting by means of transparent potting compound or by using a transparent adhesive for bonding the printed circuit board. This results in high advantage in a switch with a high IP class, for example, a class above IP67, as is particularly desirable when used in commercial vehicles such as excavators, combine harvesters or tractors.
- FIG. 1 shows an exploded view of an embodiment of a switch according to the invention.
- the central part of the switch is made of transparent thermoplastic material carrier housing 4. This has on one side a coaxially arranged support shaft 15, on the other side a holder for a SMD-equipped printed circuit board 7. On the printed circuit board 7 are bulbs 8, namely three spatially separated LED 8. Also shown are a cable gland 12 and a label 13.
- a Hall element 14 is located between the carrier housing 4 and printed circuit board 7.
- On the other side of the support housing 4 are a bearing bush 16 and a bearing ring 17 for supporting the rotary adjusting wheel 5 and the possibility of its rotational movement arranged.
- This rotary adjusting wheel 5 carries the magnets 18.
- the adjusting wheel 5 is returned by means of a leg spring 10 and secured by means of shim 19 and lock washer 20 on the support shaft 15 against axial movement.
- the two long arms on the upper side of the adjusting wheel 5 carry a separate, non-colored light guide 6, which is covered by a wheel cover 11 and the single light exit end 21 through an opening, not shown in FIG Solsteg the wheel cover 11 is optically accessible.
- the light-collecting side 22 is formed curved and covers in the mounted state, the bulbs 8.
- the switch is designed as a tactile or latching switch, is inferior to the invention, provided that its switching states are clearly and easily visible.
- a control of a multi-color LED 8 according to the invention in which without further actuation of the switch successively different colors of the multi-color LED and thus also illuminate the keypad and thereby indicate the state of an ongoing work process and thus illuminate the switch function dependent.
- the printed circuit board 7 is supplied by the commercial vehicle with information about the state of the currently running automatic process, the vehicle is, after which the printed circuit board 7, the LED 8 controls.
- FIG. 2a carries the formation of the carrier housing 4, in particular its support shaft side.
- the support shaft 15 has in the region of its free end a groove which serve to receive a shim 19 and a lock washer 20.
- the housing side of the groove extending portion of the support shaft 15 serves to receive the adjusting wheel 5, wherein the thumbwheel 5 both in this section, as well as on the further carrier housing side arranged and larger diameter section rests. Between adjusting wheel and the larger diameter part of the carrier housing 4 are not shown bearing bush and bearing ring.
- FIG. 2b shows the thumbwheel 5 with two different diameter passage openings through which the support shaft 15 passes. Also visible are the two rotation angle limiter, which extend radially outward, pointing in the direction of the free end of the support shaft 15.
- the two sections with the passage bore form a receiving pocket for a leg spring 10, whose eye is arranged coaxially to the two passage openings.
- two longer arms are shown pointing in the direction of the housing 4 and the light guide 6 according to Figure 2c holders.
- This has a cylinder-shell portion-like shaped light-collecting section 22 and a light exit end 21.
- the wheel cover 11 is clipped over the light guide 6 on the thumbwheel 5 so that they can not be easily withdrawn. This is achieved in that on the inner lower side of the wheel cover 11, two beads are formed, which engage over the elongated arms of the adjusting wheel, so that this engages as in the wheel cover 11.
- the light sources emit light on the SMD-equipped printed circuit board 7, in particular in different color characteristics. It is particularly important here that in the rest position of the thumbwheel according to the invention a different light color passes through the control unit to the outside than at the upper or lower attachment point in the case of training as a detent switch. It is also particularly important that an operator through a luminous in different colors bulbs different Function states can be displayed, which follow one another without further actuation of the switch.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Switches With Compound Operations (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen elektrischen Schalter zur Verwendung an Mehrfachbedienelementen im Bereich der Nutzfahrzeuge, dessen Bedienteil eine Drehbewegung um einen begrenzten Winkel ausführt und durch einen festen Körper außerhalb des Schalters unmittelbar betätigbar ist, aufweisend ein Trägergehäuse und ein Stellrad aufweisend ein Bedienteil, wenigstens ein Leuchtmittel und einen Lichtleiter, wobei das Bedienteil arbeitspositionsabhängig in unterschiedlicher Farbe beleuchtet ausgebildet ist.The present invention relates to an electrical switch for use on multiple controls in the field of commercial vehicles, the control panel performs a rotational movement about a limited angle and is directly actuated by a solid body outside the switch, comprising a carrier housing and a thumbwheel comprising a control panel, at least one light source and a light guide, wherein the control panel is formed depending on the working position in different colors illuminated.
Elektrische Schalter in Kraftfahrzeugen und insbesondere in Nutzfahrzeugen müssen auch im Dunkeln sicher bedienbar sein und dem Bediener Schaltzustandsinformation zur Verfügung stellen. Daher sind Tastschalter in Kraftfahrzeugen seit langem beleuchtet. In Nutzfahrzeugen sind oftmals Mehrfachbedienelemente vorhanden, die mehrere Schaltfunktionen mit einer Hand ermöglichen und beispielsweise als Multifunktionsgriff bzw. Steuerknüppel mit einer Mehrzahl von Schaltern ausgestaltet sind. Hierdurch werden sowohl die Bewegung der ganzen Hand als auch die Bewegung einzelner Finger eines Bedieners für die Betätigung von Funktionen des Nutzfahrzeugs verwendbar, ohne dass die Hand vom Mehrfachbedienelement genommen werden müsste. Dies steigert die Effizienz des Nutzfahrzeugs und die Sicherheit für den Bediener. An diesen Mehrfachbedienelementen sind in der Regel mehrere, mit einzelnen Fingern zu bedienende elektrische Schalter vorgesehen, wobei die jeweiligen Bedienfinger nur einen relativ geringen Bewegungsraum haben, da die restliche Hand am Mehrfachbedienelement, auch Joystick genannt, verbleiben muß. Die Bedienrichtung des Daumenrades ist dabei regelmäßig annähernd orthogonal zur Längsachse des Mehrfachbedienelements, der natürlichen Bewegung des Daumens einer greifenden Hand folgend.Electrical switches in motor vehicles and in particular in commercial vehicles must be safe to operate even in the dark and provide the operator with switching state information. Therefore, push-buttons in motor vehicles have been lit for a long time. In commercial vehicles are often multiple operating elements available that allow multiple switching functions with one hand and are designed, for example, as a multi-function handle or joystick with a plurality of switches. As a result, both the movement of the whole hand and the movement of individual fingers of an operator for the operation of functions of the utility vehicle can be used without the hand would have to be taken from the multiple control element. This increases the efficiency of the commercial vehicle and the safety for the operator. At this multiple controls are usually provided with individual fingers to use electrical switch, the respective operating fingers have only a relatively small range of motion, as the rest of the hand on the multiple control element, also called joystick, must remain. The operating direction of the thumbwheel is regularly approximately orthogonal to the longitudinal axis of the multiple control element, following the natural movement of the thumb of a gripping hand.
Die
Mit einem Finger, insbesondere Daumen, zu bedienende und um einen bestimmten Winkel verschwenkende Schalter sind als solche ebenfalls bekannt und sollen von der Erfindung weiterentwickelt werden.With a finger, in particular thumb, to be operated and pivoting at a certain angle switches are also known as such and are to be further developed by the invention.
Einen drehbewegten elektrischen Schalter beschreibt die
Nachteilig an diesem Stand der Technik ist jedoch, dass derartige Schalter für den Einsatz an Mehrfachbedienelementen zu wenige unterschiedliche Beleuchtungssituationen ermöglichen, zu groß bauen und aufgrund der Drehbewegung des Stellrades von den Fingern einer greifenden Hand schlecht bedienbar sind.A disadvantage of this prior art, however, is that such switches allow for use on multiple controls too few different lighting situations, build too large and are difficult to operate due to the rotational movement of the setting wheel of the fingers of a gripping hand.
Es ist daher Aufgabe der vorliegenden Erfindung, einen elektrischen Schalter zur Verwendung an Mehrfachbedienelementen anzugeben, bei dem eine Vielzahl an unterschiedlichen Beleuchtungssituationen verwirklichbar sind.It is therefore an object of the present invention to provide an electrical switch for use on multiple control elements, in which a plurality of different lighting situations can be realized.
Diese Aufgabe wird dadurch gelöst, dass der Lichtleiter eine räumlich große Lichtsammelseite und ein einziges, im Vergleich zur Lichtsammelseite räumlich kleines, Lichtaustrittsende aufweist, so daß er das Bedienteil in jedem seiner Auslenkungszustände mit Licht räumlich voneinander getrennter Leuchtmittel oder eines einzigen Leuchtmittels beleuchtend ausgebildet ist. Mit großem Vorteil stellt die vorliegende Erfindung einen beleuchteten, um einen begrenzten Winkel drehbaren Drehschalter zur Verfügung, der dem Bediener auch im Dunkeln oder bei schlechten Lichtverhältnissen die aktuelle Position und damit den Schaltzustand durch Licht sicher anzeigt. Hierbei ist es besonders vorteilhaft, wenn der Schalter nicht nur als solcher beleuchtet ist, sondern diese Beleuchtung arbeitspositionsabhängig ausgebildet ist, d. h. je nach Arbeitsposition des Schalters unterschiedlich ausgebildet ist. Der Bediener kann daher einfach durch einen Blick feststellen, in welcher Betriebsposition sich der erfindungsgemäße Drehschalter zu einem bestimmten Zeitpunkt befindet. Der erfindungsgemäße Schalter ist dabei zur Bedienung durch einen Daumen oder einen Zeigefinger eines Bedieners vorgesehen, wobei er ersterenfalls an der Frontseite eines Multifunktionsgriffes und anderenfalls an der Rückseite des Multifunktionsgriffes angeordnet ist. Der Lichtleiter ermöglicht mit großem Vorteil die Entkopplung von mechanischer Drehbewegung und Ort der Lichterzeugung, so dass keine Kabel oder dergleichen bei der mechanischen Drehbewegung mitgeführt werden müssen. Der Lichtleiter ist dabei erfindungsgemäß so ausgebildet, dass er Licht einer oder mehrerer Lichtquellen an einem und/oder mehreren räumlich voneinander entfernten Orten aufnehmend und zum Bedienteil weiterleitend ausgebildet ist. Durch die erfindungsgemäß räumlich große Lichtsammelseite können mit Vorteil unterschiedlich gefärbtes Licht aussendende Lichtquellen räumlich voneinander getrennt angeordnet sein, so dass selbst große Drehbewegungen des Bedienteils noch immer dazu führen, dass das Licht eines Leuchtmittels eingesammelt, geleitet und am Bedienteil ausgesandt werden kann.This object is achieved in that the light guide has a spatially large light collection side and a single, compared to the light collection side spatially small, light exit end, so that it is the control panel in each of its deflection states with light spatially separated bulbs or a single light source illuminating. With great advantage, the present invention provides a lit, rotatable by a limited angle rotary switch, which indicates the operator in the dark or in low light conditions, the current position and thus the switching state by light safely. It is particularly advantageous if the switch is not only illuminated as such, but this lighting is formed depending on the working position, that is formed differently depending on the working position of the switch. The operator can therefore easily determine at a glance in which operating position the rotary switch according to the invention is at a certain time. The switch according to the invention is provided for operation by a thumb or an index finger of an operator, wherein it is arranged ersterenfalls on the front side of a multi-function handle and otherwise on the back of the multi-function handle. The light guide allows with great advantage the decoupling of mechanical rotation and place of light generation, so that no cables or the like must be carried along in the mechanical rotary motion. According to the invention, the optical waveguide is designed such that it receives light from one or more light sources at one and / or a plurality of spatially distant locations and is forwarded to the operating part. By virtue of the light collecting side which is spatially large in accordance with the invention, light sources emitting differently colored light can advantageously be arranged spatially separated from one another, so that even large rotational movements of the operating part are still possible cause the light of a light source to be collected, conducted and emitted on the control panel.
Besonders vorteilhaft ist, dass der Lichtleiter durch das Trägergehäuse selber gebildet ist, indem es aus transparentem thermoplastischen Material gebildet ist. Die Verwendung des erfindungsgemäßen transparenten thermoplastischen Materials ermöglicht eine einfache Herstellung des Trägergehäuses durch Spritzguss und reduziert mit Vorteil die Zahl der benötigten Teile, so daß auf einen eigenständigen Lichtleiter neben dem transparenten lichtleitenden Trägergehäuse verzichtet werden kann. Um die nach außen tretende Lichtstärke am Bedienteil zu erhöhen, kann erfindungsgemäß auch vorgesehen sein, dass zwischen Trägergehäuse und Austrittsstelle des Lichtes am Bedienteil ein weiterer Lichtleiter vorgesehen ist, so dass das von den Leuchtmitteln ausgesandte Licht im Inneren des Trägergehäuses durch das Trägergehäuse gesammelt und in den weiteren Lichtleiter weitgehend unverändert in Farbe und Streuung zum Lichtaustrittsart am Bedienteil eingekoppelt wird.It is particularly advantageous that the light guide is formed by the carrier housing itself by being formed of transparent thermoplastic material. The use of the transparent thermoplastic material according to the invention enables a simple production of the carrier housing by injection molding and advantageously reduces the number of parts required, so that it is possible to dispense with an independent light guide next to the transparent light-conducting carrier housing. In order to increase the outgoing light intensity on the control panel, can also be provided according to the invention that between the carrier housing and exit point of the light on the control panel, a further light guide is provided so that the light emitted by the bulbs light inside the carrier housing collected by the carrier housing and in the further light guide is largely unchanged in color and scattering coupled to Lichtaustrittsart on the control panel.
Erfindungsgemäß ist vorgesehen, dass das Bedienteil eine Neutral- und zwei oder mehr Arbeitspositionen aufweist, insbesondere einen oberen und unteren Anschlag mit dazwischen angeordneter neutraler Mittelstellung. Erfindungsgemäß sind auch mehr als zwei Arbeitsstellungen, beispielsweise vier Arbeitsstellungen mit neutraler Mittelstellung denkbar. Je nach Einsatzzweck ist natürlich erfindungsgemäß auch eine neutrale Endstellung denkbar und sich daran anschließende unterschiedlich beleuchtete Betriebsstellungen. Dies ist immer dann sinnvoll, wenn mit diesem Schalter Arbeitsvorgänge gesteuert werden sollen, die immer in derselben Reihenfolge abgearbeitet werden müssen, so dass auf den einen Arbeitsschritt immer der zweite, dritte usw. Schritt folgt, gegebenenfalls auch wieder in umgekehrter Reihenfolge zurück bis zur Ausgangs- oder Neutralposition. Erfindungsgemäß sind auch die Ausführungen des Schalters als tastender Schalter mit Rückstellung oder wie beschrieben als rastender Schalter mit mehreren Schaltstellungen oder Kombinationen daraus.According to the invention it is provided that the control unit has a neutral and two or more working positions, in particular an upper and lower stop with interposed neutral center position. According to the invention, more than two working positions, for example four working positions with a neutral middle position, are also conceivable. Depending on the purpose of course, according to the invention, a neutral end position is conceivable and adjoining differently illuminated operating positions. This is always useful if you want to control work processes with this switch, which always have to be processed in the same order, so that one work step is always followed by the second, third etc. step, if necessary also in the reverse order back to the initial or neutral position. According to the invention, the embodiments of the switch as a momentary switch with provision or as described as a latching switch with multiple switch positions or combinations thereof.
In Ausgestaltung der Erfindung ist vorgesehen, dass das Trägergehäuse eine Leiterplatine trägt, insbesondere eine SMD-bestückte Leiterplatine, die ihrerseits wiederum Leuchtmittel trägt und dass das Trägergehäuse einen Lichtleiter aufweist. Insbesondere ist vorgesehen, dass die Leiterplatine, insbesondere SMD-bestückte Leiterplatine im Inneren des Trägergehäuses angeordnet ist, so dass sie vor äußeren Einflüssen wie insbesondere Staub und Feuchtigkeit und mechanischen Belastungen weitestgehend geschützt ist. Die Leiterplatine trägt Leuchtmittel, die erfindungsgemäß beispielsweise LED's sein können, jedoch nicht müssen. Der am oder im Trägergehäuse vorgesehene Lichtleiter sammelt das Licht des einen oder der mehreren Leuchtmittel und ist daher ebenfalls mechanisch geschützt. Erfindungsgemäß kann der Lichtleiter auch Teil des Trägergehäuses selber sein.In an embodiment of the invention, it is provided that the carrier housing carries a printed circuit board, in particular an SMD-equipped printed circuit board, which in turn carries lamps and that the carrier housing has a light guide. In particular, it is provided that the printed circuit board, in particular SMD-equipped printed circuit board is arranged in the interior of the carrier housing, so that it is largely protected from external influences such as in particular dust and moisture and mechanical stress. The printed circuit board carries lighting means, which according to the invention may be LEDs, for example, but need not. The light guide provided on or in the carrier housing collects the light of the one or more light sources and is therefore also mechanically protected. According to the invention, the light guide can also be part of the carrier housing itself.
In Ausgestaltung der Erfindung ist vorgesehen, dass das Bedienteil an einer Tragachse des Trägergehäuses angeordnet ist und Mittel zur Begrenzung der Drehbewegung aufweist. Das Bedienteil dient dazu, den Betriebszustand des Schalters zu verstellen, dies erfolgt konstruktiv am einfachsten dadurch, dass es an einer zentralen, koaxialen Tragachse des Trägergehäuses angeordnet ist. Weist es Mittel zur Begrenzung der Drehbewegung auf, so kann eine Fehlbedienung des erfindungsgemäßen Schalters vermieden werden, da mechanische Kräfte nicht übermäßig ausgeübt werden können. Insbesondere dann, wenn eine Rückstellfeder zur Rückstellung des ausgelenkten Bedienteils in dessen Ruhelage zwischen Trägergehäuse und Stellrad vorgesehen ist, lässt sich die Rückstellkraft besonders einfach aufbringen.In an embodiment of the invention, it is provided that the control unit is arranged on a support shaft of the carrier housing and has means for limiting the rotational movement. The control panel serves to adjust the operating state of the switch, this is structurally the simplest way in that it is arranged on a central, coaxial support shaft of the support housing. If it has means for limiting the rotational movement, incorrect operation of the switch according to the invention can be avoided since mechanical forces can not be exerted excessively. In particular, when a return spring is provided for returning the deflected operating part in its rest position between the carrier housing and the setting wheel, the restoring force can be applied very easily.
Ist an dem Bedienteil eine Radabdeckung befestigt, insbesondere eine an das Bedienteil aufgeschnappte Radabdeckung, wobei vorzugsweise ein Lichtleiter zwischen Radabdeckung und Bedienteil vorgesehen und gehaltert ist, so wird eine besonders effiziente, konstruktiv einfache und dauerhafte Lösung ermöglicht.If a wheel cover is fastened to the control unit, in particular a wheel cover snapped onto the control panel, wherein preferably a light conductor is provided and supported between the wheel cover and the control panel, a particularly efficient, structurally simple and permanent solution is made possible.
Eine einfache und vorteilhafte Ausgestaltung des Lichtleiters sieht vor, daß dieser als ein gebogenes und in Einbaulage um 180° gedrehtes T ausgebildet ist. Hierbei bildet das Querstück des T's in Form eines Zylindermantelabschnittes eine räumlich große Lichtsammelseite, die auch bei starker Auslenkung des Bedienteils noch immer Licht eines Leuchmittels einfangend und an ihrem einzigen Lichtaustrittsende in ein Bedienteil, beispielsweise eine Radabdeckung, einleitend ist.A simple and advantageous embodiment of the light guide provides that this is designed as a bent and rotated in the installed position by 180 ° T. In this case, the crosspiece of the T in the form of a cylinder jacket section forms a spatially large light collecting side which, even with strong deflection of the operating element, still captures the light of a luminous means and initiates at its single light exit end into a control element, for example a wheel cover.
Sind bis zu drei Leuchtmitteln mit jeweils unterschiedlicher Lichtfarbe oder mit wechselnder Lichtfarbe vorgesehen, ist der erfindungsgemäße Schalter mit großem Vorteil in der Lage, sowohl winkel- als auch funktionsabhängige Beleuchtungssituationen am Bedienteil zu erzeugen. Je nach Auslenkung des erfindungsgemäßen Schalters erreicht das Licht eines anderen und andersfarbigen Leuchtmittels über den Lichtleiter das Lichtaustrittsende und beleuchtet das Bedienteil, so daß dieses winkelabhängig beleuchtet ist. Mit großem Vorteil ist der erfindungsgemäße Schalter aber auch funktionsabhängig beleuchtbar, indem in ein und derselben Arbeitsposition des Bedienteils unterschiedliche Leuchtfarben anzeigbar sind. Dies ist immer dann von Vorteil, wenn mit einer Betätigung des Schalters ein Arbeitsvorgang aus mehreren automatisch nacheinander ablaufenden Schritten ausgelöst wird, beispielsweise ein Greifen, Verschwenken und Loslassen. Die einzelnen Arbeitsvorgangsstufen werden dabei durch wechselnde Farben eines einzigen Leuchtmittels angezeigt, beispielsweise mit der Abfolge Grün-Gelb-Rot einer Multicolour-LED.If up to three light sources, each with a different light color or with changing light color, are provided, the switch according to the invention is able to produce both angle-dependent and function-dependent lighting situations on the control panel with great advantage. Depending on the deflection of the switch according to the invention, the light of another and differently colored light source reaches the light exit end via the light guide and illuminates the control panel so that it is illuminated in an angle-dependent manner. But with great advantage the switch according to the invention is also functionally illuminated by different luminescent colors can be displayed in one and the same working position of the control panel. This is always advantageous if, with an actuation of the switch, a work process is triggered from several automatically successive steps, such as gripping, pivoting and releasing. The individual stages of operation are displayed by changing colors of a single light source, for example, the sequence green-yellow-red of a multicolour LED.
Elektrotechnisch besonders vorteilhaft ist die Ausbildung des Schalters als berührungsloser Schalter, insbesondere Hall- oder Reedschalter, da dies die Zahl der benötigten Teile reduziert und gleichzeitig einen möglichst betriebssicheren und lang haltenden Schalter ermöglicht.Electro-technically particularly advantageous is the design of the switch as a non-contact switch, in particular Hall or reed switch, as this reduces the number of parts required and at the same time allows a reliable and long-lasting switch as possible.
Besonders vorteilhaft ist, dass in Ausgestaltung der Erfindung die bestückte Leiterplatine mechanisch vor eindringendem Staub oder Feuchtigkeit geschützt ausgebildet ist, so dass ihre Lebensdauer auch unter den erfindungsgemäßen rauen Einsatzbedingungen nicht verkürzt ist. Erfindungsgemäß kann dieser mechanische Schutz durch Vergießen mittels transparenter Vergussmasse erreicht werden oder durch Verwenden eines transparenten Klebers zur Verklebung der Leiterplatine. Dies führt mit hohem Vorteil zu einem Schalter mit hoher IP-Klasse, beispielsweise einer über IP67 liegenden Klasse, wie sie beim Einsatz in Nutzfahrzeugen wie Baggern, Mähdreschern oder Traktoren besonders wünschenswert ist.It is particularly advantageous that in the embodiment of the invention, the assembled printed circuit board is formed mechanically protected from penetrating dust or moisture, so that their life is not shortened even under the rough conditions of the invention. According to the invention, this mechanical protection can be achieved by casting by means of transparent potting compound or by using a transparent adhesive for bonding the printed circuit board. This results in high advantage in a switch with a high IP class, for example, a class above IP67, as is particularly desirable when used in commercial vehicles such as excavators, combine harvesters or tractors.
Die Erfindung wird in einer bevorzugten Ausführungsform unter Bezugnahme auf eine Zeichnung beispielhaft beschrieben, wobei weitere vorteilhafte Einzelheiten den Figuren der Zeichnung zu entnehmen sind.The invention will be described by way of example in a preferred embodiment with reference to a drawing, wherein further advantageous details are shown in the figures of the drawing.
Funktionsmäßig gleiche Teile sind dabei mit denselben Bezugszeichen versehen.Functionally identical parts are provided with the same reference numerals.
Die Figuren der Zeichnung zeigen im Einzelnen:
- Figur 1:
- zeigt eine Explosionszeichnung eines erfindungsgemäßen Schalters.
- Figuren 2a bis d:
- zeigen Bauteile des erfindungsgemäßen Schalters.
- FIG. 1:
- shows an exploded view of a switch according to the invention.
- FIGS. 2a to d:
- show components of the switch according to the invention.
Erfindungsgemäß ist nun vorgesehen, dass die Leuchtmittel auf der SMDbestückten Leiterplatine 7 Licht aussenden, insbesondere in unterschiedlicher Farbausprägung. Besonders wichtig ist hierbei, dass in der Ruhestellung des erfindungsgemäßen Daumenrades eine andere Lichtfarbe durch das Bedienteil nach außen tritt als am oberen oder unteren Anschlagpunkt im Fall einer Ausbildung als Rastschalter. Besonders wichtig ist auch, daß einem Bediener durch ein in unterschiedlichen Farben leuchtendes Leuchtmittel unterschiedliche Funktionszustände anzeigbar sind, die ohne weitere Betätigung des Schalters aufeinander folgen.According to the invention, it is now provided that the light sources emit light on the SMD-equipped printed
- 11
- elektrischer Schalterelectrical switch
- 22
- MehrfachbedienelementMultiple operating element
- 33
- 44
- Trägergehäusesupport housing
- 55
- Stellradthumbwheel
- 66
- Lichtleiteroptical fiber
- 77
- Leiterplatineprinted circuit board
- 88th
- LeuchtmittelLamp
- 99
- Mittelmedium
- 1010
- RückstellfederReturn spring
- 1111
- Radabdeckungwheel cover
- 1212
- KabeldurchführungGrommet
- 1313
- LabelReleases
- 1414
- HallelementHall element
- 1515
- Tragachsecarrying axle
- 1616
- Lagerbuchsebearing bush
- 1717
- Lagerringbearing ring
- 1818
- Magnetmagnet
- 1919
- Paßscheibeshim
- 2020
- Sicherungsscheibelock washer
- 2121
- LichtaustrittsendeLight output end
- 2222
- LichtsammelseiteLight collection side
Claims (12)
Mehrfachbedienelementen (2) im Bereich der Nutzfahrzeuge, dessen Bedienteil eine Drehbewegung um einen begrenzten Winkel ausführt und durch einen festen Körper außerhalb des Schalters (1) unmittelbar betätigbar ist, aufweisend ein Trägergehäuse (4) und ein Stellrad (5) aufweisend ein Bedienteil, wenigstens ein Leuchtmittel (8) und einen Lichtleiter (6), wobei das Bedienteil arbeitspositionsabhängig in unterschiedlicher Farbe beleuchtet ausgebildet ist, dadurch gekennzeichnet, dass der Lichtleiter (6) eine räumlich große Lichtsammelseite (22) und ein einziges, im Vergleich zur Lichtsammelseite (22) räumlich kleines, Lichtaustrittsende (21) aufweist, so daß er das Bedienteil in jedem seiner Auslenkungszustände mit Licht räumlich voneinander getrennter Leuchtmittel (8) oder eines einzigen Leuchtmittels (8) beleuchtend ausgebildet ist.Electric switch (1) for use
Multiple control elements (2) in the field of commercial vehicles, the control panel performs a rotational movement about a limited angle and by a solid body outside the switch (1) is directly actuated, comprising a carrier housing (4) and a thumbwheel (5) comprising a control panel, at least a light-emitting means (8) and a light guide (6), wherein the operating part is illuminated depending on working position in different colors, characterized in that the light guide (6) has a spatially large light-collecting side (22) and a single, compared to the light-collecting side (22) spatially small, light exit end (21), so that it is the control panel in each of its deflection states with light spatially separated from each other bulbs (8) or a single light source (8) lighting.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009036318A DE102009036318A1 (en) | 2009-02-09 | 2009-08-06 | Electric switch e.g. Hall-switch, for use on operating elements of e.g. harvester, has control unit directly actuated by solid body outside of switch and illuminated in different colors based on positions using LED |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2282250A1 true EP2282250A1 (en) | 2011-02-09 |
EP2282250B1 EP2282250B1 (en) | 2014-10-08 |
Family
ID=42317590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10008168.6A Active EP2282250B1 (en) | 2009-08-06 | 2010-08-05 | Thumbwheel |
Country Status (3)
Country | Link |
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US (1) | US8367956B2 (en) |
EP (1) | EP2282250B1 (en) |
DE (1) | DE102009036318A1 (en) |
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EP3168854A1 (en) * | 2015-11-10 | 2017-05-17 | MAKERSAN Makina Otomotiv Sanayi Ticaret Ltd. Sti. | A switch with adjusting wheel |
EP3174081A1 (en) * | 2015-11-25 | 2017-05-31 | MAKERSAN Makina Otomotiv Sanayi Ticaret Ltd. Sti. | A rotary switch |
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JP5262701B2 (en) * | 2008-12-26 | 2013-08-14 | オムロン株式会社 | Power tool switch |
DE102009056657A1 (en) * | 2009-12-02 | 2011-06-09 | GM Global Technology Operations LLC, ( n. d. Ges. d. Staates Delaware ), Detroit | Lighting device for a motor vehicle |
US8872048B2 (en) | 2011-11-22 | 2014-10-28 | Nidec Motor Corporation | Illuminated thumbwheel switch assembly |
FR2984004B1 (en) | 2011-12-09 | 2014-08-15 | Apem | ROTARY ELECTRICAL CONTROL DEVICE |
US20180364817A1 (en) * | 2015-12-14 | 2018-12-20 | Denso Corporation | Operating device |
US10884519B2 (en) * | 2017-03-16 | 2021-01-05 | Lite-On Electronics (Guangzhou) Limited | Scroll wheel module |
US10863671B2 (en) | 2017-12-01 | 2020-12-15 | Agco Corporation | Unloading conveyor swing control system |
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Also Published As
Publication number | Publication date |
---|---|
US20110032058A1 (en) | 2011-02-10 |
EP2282250B1 (en) | 2014-10-08 |
US8367956B2 (en) | 2013-02-05 |
DE102009036318A1 (en) | 2010-08-12 |
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