DE8710311U1 - Control device for electric wheelchairs or similar. - Google Patents
Control device for electric wheelchairs or similar.Info
- Publication number
- DE8710311U1 DE8710311U1 DE8710311U DE8710311U DE8710311U1 DE 8710311 U1 DE8710311 U1 DE 8710311U1 DE 8710311 U DE8710311 U DE 8710311U DE 8710311 U DE8710311 U DE 8710311U DE 8710311 U1 DE8710311 U1 DE 8710311U1
- Authority
- DE
- Germany
- Prior art keywords
- control device
- plates
- mechanical
- lever
- control lever
- 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
Links
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000009347 mechanical transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 5
- 244000309464 bull Species 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G9/04785—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks the controlling member being the operating part of a switch arrangement
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G2009/04703—Mounting of controlling member
- G05G2009/04707—Mounting of controlling member with ball joint
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G2009/0474—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks characterised by means converting mechanical movement into electric signals
- G05G2009/04744—Switches
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G2009/0474—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks characterised by means converting mechanical movement into electric signals
- G05G2009/04748—Position sensor for rotary movement, e.g. potentiometer
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G2009/0474—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks characterised by means converting mechanical movement into electric signals
- G05G2009/04751—Position sensor for linear movement
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G2009/04766—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks providing feel, e.g. indexing means, means to create counterforce
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
- H01H3/0213—Combined operation of electric switch and variable impedance, e.g. resistor, capacitor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Control Devices (AREA)
Description
Steuereinrichtung für elektrische Rollstühle oder dergl.Control device for electric wheelchairs or similar.
Die Erfindung betrifft eine Steuereinrichtung der im Oberbegriff des Anspruchs 1 genannten Art für elektrische Rollstühle oder dergl. Eine solche Steuereinrichtung wird häufig Joystick genannt*The invention relates to a control device of the type mentioned in the preamble of claim 1 for electric wheelchairs or the like. Such a control device is often called a joystick*
Durch die Firmenschrift "Rollstühle und Rehabilitationsmittel" der Firma MEYRA in D-4925 Kalletal 1, August 1984, Seite 79, und die durch diese Firma gelieferten Rollstühle ist eine Steuereinrichtung der betreffenden Art bekannt, bei der die mechanisch-elektrischen Stellglieder aus Potentiometern bestehen, deren Achsen um 90° versetzt in einer Ebene im wesentlichen senkrecht zur Richtung des Steuerhebels liegen. An den Achsen ist jeweils das Ende eines Schenkels eines U-förmigen Bügels befestigt, in dessen Mittelteil sich jeweils Schlitze befinden, in die das eine Ende des zweiarmig ausgebildeten Steuerhebels eingreift. Bei Bewegung des Steuerhebels in Richtung des einen Schlitzes wird der andere U-förmige Bügel und damit das damit verbundene Potentiometer bewegt und umgekehrt, wobei natürlich alle möglichen Zwischenformen der Bewegungen möglich sind, so daß praktisch eine 4-Quadrantensteuerung gebildet ist.A control device of the type in question is known from the company brochure "Wheelchairs and rehabilitation equipment" by MEYRA in D-4925 Kalletal 1, August 1984, page 79, and the wheelchairs supplied by this company, in which the mechanical-electrical actuators consist of potentiometers, the axes of which are offset by 90° in a plane that is essentially perpendicular to the direction of the control lever. The end of one leg of a U-shaped bracket is attached to each of the axes, in the middle of which there are slots into which one end of the two-armed control lever engages. When the control lever is moved in the direction of one slot, the other U-shaped bracket and thus the potentiometer connected to it is moved and vice versa, whereby of course all possible intermediate forms of movement are possible, so that in practice a 4-quadrant control is formed.
Die Mittelteile der U-förmigen Bügel, in denen sich die Schlitze befinden, sind entsprechend der Bewegungsbahn des Steuerhebels in bezug zu dessen Schwenklager bogenförmig ausgebildet. Die Herstellung ist damit kompliziert, insbesondere die Herstellung des in diesem bogenförmigen Teil an-The middle parts of the U-shaped brackets, in which the slots are located, are curved in accordance with the movement path of the control lever in relation to its pivot bearing. This makes production complicated, especially the production of the
SL/H.SL/H.
-2--2-
gecLr/dneten Schlitzes. Außerdem ist ein zusätzliches Drehlager am Ende des Schenkels des Ü-förmigen Bügels vorgesehen, der dem Potentiometer abgewandt ist. Auch dies stellt einen zusätzlichen konstruktiven Aufwand dar. Wegen der U-förmigen Bügel ist die Bautiefe verhältnismäßig groß, was insbesondere deshalb von Nachteil ist, weil eine Steuereinrichtung der betreffenden Art bei Verwendung in einem Rollstuhl in oder im Bereich der Armlehne des Rollstuhls untergebracht werden muß.cLr/dnetted slot. In addition, an additional pivot bearing is provided at the end of the leg of the U-shaped bracket, which faces away from the potentiometer. This also represents additional construction effort. Because of the U-shaped bracket, the installation depth is relatively large, which is particularly disadvantageous because a control device of the type in question must be accommodated in or near the armrest of the wheelchair when used in a wheelchair.
Der Erfindung liegt die Aufgabe zugrunde, eine Steuereinrichtung der betreffenden Art zu schaffen, die die Nachteile der bekannten Steuereinrichtung nicht aufweist, die also einfach und billig im Aufbau ist und eine geringe Bautiefe hat.The invention is based on the object of creating a control device of the type in question which does not have the disadvantages of the known control device, which is therefore simple and inexpensive to construct and has a small installation depth.
Die der Erfindung zugrundeliegende Aufgabe wird dadurch gelöst, daß als mechanische Übertragungseinrichtungen Kulissengetriebe verwendet sind. Bei einem solchen Kulissengetriebe ergibt sich eine geringe Bautiefe bei gleichzeitig einfachem Aufwand. Der Steuerhebel greift bei einem derartigen Kulissengetriebe ganz einfach an eine Kulisse an, die an dem Steuerhebel anliegt und bei Bewegungen, die nicht entlang der Kontur der Kulisse erfolgen, bewegt wird, wobei diese Bewegung auf das mechanisch-elektrische Stellglied übertragen wird. Die Kulisse und ihre Führung kann in sehr einfacher Weise hergestellt werden, so daß sich geringe Herstellungskosten ergeben. Außerdem ist die Bautiefe sehr gering.The object underlying the invention is achieved by using a link gear as a mechanical transmission device. With such a link gear, a small installation depth is achieved while at the same time being simple. With such a link gear, the control lever simply engages a link that rests on the control lever and is moved during movements that do not occur along the contour of the link, with this movement being transmitted to the mechanical-electrical actuator. The link and its guide can be manufactured in a very simple manner, resulting in low manufacturing costs. In addition, the installation depth is very small.
Gemäß einer Ausführungsmöglichkeit der Erfindung können die Kulissengetriebe zwei Schieber aufweisen, die in gleicher Richtung verschieblich gehalten sind und jeweils gegensinnig geneigt zu ihrer Verschieberichtung Kulissenschlitze aufweisen, in die der Steuerhebel eingreift, wobei die Schieber mit den mechanisch-elektrischen Stellgliedern verbunden sind. Dadurch, daß die Schieber in gleicher Richtung verschieblich sind, kann für sie praktisch die gleiche Führung verwendet werden, was konstruktiv besonders einfach ist- Die Kulissen-According to one possible embodiment of the invention, the link gears can have two slides that are held so that they can move in the same direction and each have slotted slots that are inclined in the opposite direction to their direction of movement, into which the control lever engages, the slides being connected to the mechanical-electrical actuators. Because the slides can move in the same direction, practically the same guide can be used for them, which is particularly simple in terms of construction. The link slots
&bgr; «· ti flit ·· «4«&bgr; «· ti flit ·· «4«
• · · 111 · « «· · 111 · « «
· ■ 111 · · 4 · ■ 111 · · 4
.1.« Il 1 ti ·.1.« The 1st ·
-3--3-
schlitze lassen sich in Sehr einfacher Weise und sehr genau herstellen, beispielsweise durch Ausständen, wenn die Schieber durch Platten gebildet sind.Slots can be manufactured very easily and very precisely, for example by means of projections when the slides are made of plates.
Durch die Neigung der Kulissenschlitze läßt sich die Übertragungsfunktion in sehr weiten Grenzen variieren, so daß sich entsprechende Variationsmöglichkeiten in der Steuer-Charakteristik des Steuerhebels ergeben. Die Kulissenschlitze können zu der Verschieberichtung um 45° geneigt sein, jedoch sind auch andere Winkel möglich, wodurch sich eine unterschiedliche Steuercharakteristik bei Auslenkungen des Steurrhebeis in unterschiedliche Richtungen ergibt. Ein besonderer Vorteil in der Verwendung der Kulissen besteht darin, daß sie nicht nur durch Neigung, sondern auch durch Kurvenform sehr unterschiedliche Steuercharakteristiken ermöglichen.The inclination of the guide slots allows the transfer function to be varied within very wide limits, resulting in corresponding variations in the control characteristics of the control lever. The guide slots can be inclined by 45° to the direction of movement, but other angles are also possible, resulting in different control characteristics when the control lever is deflected in different directions. A particular advantage of using the guides is that they enable very different control characteristics not only through inclination, but also through the shape of the curve.
Die Kulissen bzw. die Kulissenschlitze können also gekrümmt sein. Zweckmäßig ist dabei insbesondere eine zum Zentrum, das durch die Ruhestellung des Steuerhebels definiert ist, zentralsymmetrische Krümmung, so daß für die mechanisch-elektrischen Stellglieder zwar eine nicht-lineare, zu beiden Auslenkungsrichtungen jedoch symmetrische Charakteristik gegeben ist.The gates or gate slots can therefore be curved. In particular, a centrally symmetrical curvature to the center, which is defined by the rest position of the control lever, is useful, so that the mechanical-electrical actuators have a non-linear characteristic that is symmetrical to both deflection directions.
Eine besonders zweckmäßige Ausbildungsform der als Platten ausgebildeten Schieber mit den Kulissenschlitze.- ist in Anspruch 6 angegeben. Die Führung der Platten erfolgt dabei ganz einfach durch übereinanderliegende Führungsschlitze in den Platten, in die jeweils ein für beide Platten gemeinsamer Führungsstift eingreift, der llso beide Platten gleichzeitig führt. Axial zum Fanrungsstift sind natürlich Anlageschultern erforderlich, die die Platten auf den Stiften beweglich in ihrer Lage halten und führen. Diese Anlageschultern und die Platten selbst können aus einem passenden Material, vorzugsweise aus Kunststoff, hergestellt sein, der v«sir--Schmierung erfordert, so daß eine völlig wartungs- und weitgehend verschleißfreie Konstruktion gegeben ist.A particularly useful design of the slides in the form of plates with the slotted guides is specified in claim 6. The plates are guided quite simply by means of guide slots in the plates which are arranged one above the other and into which a guide pin common to both plates engages, thus guiding both plates simultaneously. Axial to the guide pin, bearing shoulders are of course required which hold and guide the plates in their position on the pins. These bearing shoulders and the plates themselves can be made of a suitable material, preferably plastic, which requires no lubrication, so that a completely maintenance-free and largely wear-free construction is achieved.
Nach der Weiterbildung gemäß Anspruch 7 erstreckt sich durch die sich kreuzenden Schlitze eine Buchse, die mit wenig-According to the further development according to claim 7, a bushing extends through the intersecting slots, which
r»i—-. ftf -*="- --"r»i—-. ftf -*="- --"
*«·■! ··· · • ti t t ■ ·» ·*«·■! ··· · • ti t t ■ ·» ·
-4--4-
stens einem Flansch an einer der Platten anliegt, wobai der Steuerhebel mit einem wenigstens teilweise kugligen Teil in die Buchse eingreift. Dadurch ist eine spielfreie Kopplung des Steuerhebels mit den Kulissenschlitzen erzielt, obwohl der Steuerhebel bei Auslenkbewegungen senkrecht zu den Schiebern eine Bewegung ausführt, da sich der F.ontaktpunkt desat least one flange on one of the plates, whereby the control lever engages in the bushing with an at least partially spherical part. This achieves a play-free coupling of the control lever with the slotted guides, although the control lever moves perpendicular to the slides during deflection movements, since the contact point of the
Steuerhebels auf einer Kreisbahn bewegt, während die Schieber bzw. Platten sich auf einer Sekante zu dieser Kreisbahn bewegen.control lever moves on a circular path, while the slides or plates move on a secant to this circular path.
Die die Schieber bildenden Platten können dicht, vorzugsweise unmittelbar aufeinander liegen. Dies ist konstruktiv zweckmäßig und deshalb möglich, weil die Führungskräfte senkrecht zu den Platten und damit die Auflage - Kräfte der Platten aufeinander sehr gering sind.The plates forming the slides can lie close together, preferably directly on top of each other. This is structurally appropriate and is possible because the guides are perpendicular to the plates and therefore the contact forces between the plates are very low.
Die Verwendung von Schiebern für die Kulissengetriebe ermöglich t eine sehr zweckmäßige Weiterbildung, indem die Anordnung seitlicher Vorsprünge oder Vertiefungen an den Schiebern möglich ist, die mit einem Betätigungsorgan eines Schalters zusammenwirken können. Ein solcher Schalter dient im Falle eines Roll Stuhls zur Durchführung bestimmter Schaltvorgänge, wenn die Bedienungsperson den Steuerhebel losläßt. Gemäß einer Weiterbildung dieser Ausführungsform sind dabei an beiden Schiebern jeweils Vertiefungen vorgesehen, die in Ruhestellung de? Steuerhebels miteinander fluchten, derart, daß der Schalter nur in Ruhestellung des Steuerhebels betätigt ist.The use of slides for the link gears enables a very practical development, as it is possible to arrange lateral projections or recesses on the slides, which can interact with an actuating element of a switch. In the case of a wheelchair, such a switch is used to carry out certain switching operations when the operator releases the control lever. According to a development of this embodiment, recesses are provided on both slides, which are aligned with one another when the control lever is in the rest position, such that the switch is only actuated when the control lever is in the rest position.
Die mechanisch-elektrischen Stellglieder können in sehr einfacher Weise Flachbahnwiderstände oder Flachbahnpotantiometer sein, die unmittelbar oder mittelba durch kleine Ubertragungsstangen mit den Schiebern verbunden sind. Dadurch ergeben sich völlig lineare Steuercharakteristiken, während gleichzeitig die E&ütiefe besOHdiSrs gering ist« Als mechanisch^ elektrische Stellglieder können aber auch Drtöhwiderstäiide öder Drehpotentiometer verwendet werden/ an deren Achse jeweils ein Hebel befestigt ist/ der mit einem jeweils an dem SchieberThe mechanical-electrical actuators can be very simply flat-track resistors or flat-track potentiometers, which are connected directly or indirectly to the slides by small transmission rods. This results in completely linear control characteristics, while at the same time the depth of control is particularly low . However, rotary resistors or rotary potentiometers can also be used as mechanical-electrical actuators, to each of which a lever is attached, which is connected to a respective slider.
«I«I
angeordnsten Zapfen in Eingriff steht. Die Lage der Drehwiderstände oder Drehpotentiometer ist dabei völlig frei bis auf die Bedingung, daß ihre Achse senkrecht zur Verschieberichtung der Schieber verlaufen muß. Diese Ausführungsform ermöglicht daher eine beliebige Anordnung der Drehwiderstände oder Drehpotentiometer, insbesondere eine solche, bei der die Bautiefe sehr gering ist. Der für die Drehbewegung der Drehwiderstände bzw. Drehpotentiometer erforderliche Hebel it vorteilhafterweise eine Gabel, in die ein Zapfen an dem Schieber eingreift. Natürlich ist auch eine ümwandl'ing der Linearbewegung der Schieber in die Drehbewegung der Drehwiderstände oder Drehpotentiometer auch durch andere Übertragungsgetriebe möglich, beispielsweise durch ein Kurbelgetriebe. Die Stellglieder können auch induktiv arbeiten. Anhand der Zeichnung soll die Erfindung näher erläutert werden.arranged pin is engaged. The position of the rotary resistors or rotary potentiometers is completely free except for the condition that their axis must run perpendicular to the direction of movement of the slides. This design therefore enables any arrangement of the rotary resistors or rotary potentiometers, in particular one in which the installation depth is very small. The lever required for the rotary movement of the rotary resistors or rotary potentiometers is advantageously a fork into which a pin on the slide engages. Of course, a conversion of the linear movement of the slides into the rotary movement of the rotary resistors or rotary potentiometers is also possible using other transmission gears, for example a crank gear. The actuators can also work inductively. The invention will be explained in more detail using the drawing.
Fig. 1 zeigt einen Vertikalschnitt durch einFig. 1 shows a vertical section through a
Ausführungsbeispiel einer Steuereinrichtung gemäß der Erfindung,Embodiment of a control device according to the invention,
Fig. 2 zeigt eine Seitenansicht II von Fig. 1,Fig. 2 shows a side view II of Fig. 1,
zeigt eine Ansicht III von unten in Fig. 1, wobsi die untere Abdeckkappe weggelassen ist,shows a view III from below in Fig. 1, where the lower cover cap is omitted,
zeigt einzeln einen unteren Schieber in Fig. 1 undshows individually a lower slider in Fig. 1 and
zeigt einzeln einen oberen Schieber aus Fig. 1.shows an individual upper slide from Fig. 1.
Ein Steuerhebel 1 weist ein Kugelgelenk 2 auf, dessen Kugelteil 3 auf dem Steuerhebel 1 sitzt und dessen ortsfester Teil 4 durch ein Gehäuseteil 5 an einer Platte 6 gehalten ist, mit der die gesamte Steuereinrichtung beispielsweise durch Schrauben in der Armlehne eines Rollstuhls befestigbar ist. OaS Gehäuseteil 5 ist mittels Schrauben 7 gehalten/ die gleichzeitig einen Ansehlagring 8 halten/ dessen Anschlagkante 9 die AüSlenkbewegungen des Steuerhebels 1 begrenzt.A control lever 1 has a ball joint 2, the ball part 3 of which sits on the control lever 1 and the stationary part 4 of which is held by a housing part 5 on a plate 6, with which the entire control device can be fastened, for example by screws, in the armrest of a wheelchair. The housing part 5 is held by means of screws 7, which simultaneously hold a stop ring 8, the stop edge 9 of which limits the deflection movements of the control lever 1.
-6--6-
-6--6-
Auf einem oberen Arm 10 des als zweiarmiger Hebel ausgebildeten Steuerhebels 1 ist verschieblich eine Buchse 11 angeordnet, die von einer Druckfeder 12 mit ihrer unteren Kante 13 gegen eine Scheibe 14 gedrückt wird, die von dem Anschlagring 8 auf der oberen Fläche der Platte 6 gehalten ist. Die Druckfeder 12 stützt sich dabei an einem Schraubring 15 ab, der auf einem Gewinde 16 des oberen Armes 10 verstellbar ist, um die Druckkraft der Feder 12 und damit die Anlage der unteren Kante 13 auf der Scheibe 14 und somit auch die dadurch bedingte Rückstellkraft des Steuerhebels einstellen zu können. Der obere Arm 10 mit der Druckfeder ist durch eine Kappe 17 abgedeckt, die duich eine Kugel 18 gehalten ist, die auf ein Gewindeende 19 des oberen Armes fest aufgeschraubt ist. Zwischen der Buchse 11 und dem Anschlagring 8 erstreckt sich eine Dichtung 20.A bushing 11 is movably arranged on an upper arm 10 of the control lever 1, which is designed as a two-armed lever. The lower edge 13 of the bushing 11 is pressed by a compression spring 12 against a disk 14 that is held by the stop ring 8 on the upper surface of the plate 6. The compression spring 12 is supported on a screw ring 15 that is adjustable on a thread 16 of the upper arm 10 in order to be able to adjust the pressure force of the spring 12 and thus the contact of the lower edge 13 with the disk 14 and thus also the resulting restoring force of the control lever. The upper arm 10 with the compression spring is covered by a cap 17 that is held by a ball 18 that is screwed tightly onto a threaded end 19 of the upper arm. A seal 20 extends between the bushing 11 and the stop ring 8.
Das Gehäuseteil 5 weist einen runden Flansch 21 auf, in dem sich diametral gegenüberliegend Löcher 22 und. 23 befinden, durch die sich Schrauben 24 und 25 erstrecken, die Scheiben 26 und 27, Buchsen 28 und 29 sowie Scheiben 30 und 31 halten, die alle durch Muttern 32 und 3 3 gegen den Flansch 21 gezogen sind.The housing part 5 has a round flange 21 in which there are diametrically opposed holes 22 and 23 through which screws 24 and 25 extend, holding disks 26 and 27, bushings 28 and 29 and disks 30 and 31, all of which are pulled against the flange 21 by nuts 32 and 33.
Zwischen den Scheiben 26, 27 und 30, 31 sind zwei Platten 34 und 35 verschieblich geführt, wobei die Buchsen 28 und 29 in Schlitzen 36 und 37 in den Platten 34 und 35 spielfrei gleiten. Die Ausbildung der Platten 34 und 35 und die Anordnung der Schlitze 36 und 37 ist deutlich aus Fig. zu ersehen. Die Platten 34 und 35 sind also in Richtung der Schlitze 36 und 37 leicht verschieblich und spielfrei geführt. Im Bereich der Buchse 29 befinden sich in den Platten 34 und 35 Schlitze 38 und 39, in denen die Buchse 29 spielfrei gleitet.Two plates 34 and 35 are slidably guided between the disks 26, 27 and 30, 31, with the bushings 28 and 29 sliding without play in slots 36 and 37 in the plates 34 and 35. The design of the plates 34 and 35 and the arrangement of the slots 36 and 37 can be clearly seen in Fig. The plates 34 and 35 are therefore easily slidable in the direction of the slots 36 and 37 and guided without play. In the area of the bushing 29, there are slots 38 and 39 in the plates 34 and 35, in which the bushing 29 slides without play.
2;wischen den Schlitzen 36, 37 einerseits und 38, 39 andererseits befindet sich in der Platts 35 ein in Versohiebsrichtung um 4B° geneigter Kulissenschlitz 40 und in der Platte 36" ein Kulissenschlitz 41. Wie aus Fig. 3 in Verbindung mit Fig. 11 ersichtlich ist, erstreckt sich durch die sich kreuzenden2;Between the slots 36, 37 on the one hand and 38, 39 on the other hand, there is a slot 40 inclined by 4B° in the direction of travel in the plate 35 and a slot 41 in the plate 36". As can be seen from Fig. 3 in conjunction with Fig. 1 1 , the intersecting
I III It ·■ ·I III It ·■ ·
Kulissenschlitze 40 und 41 eine Buchse 42, die so bemessen ist, daß sie spielfrei in den Kulissenschlitzen gleiten kann. An der Buchse 42 befindet sich ein Flansch 43, der gleitend an der Platte 34 anliegt. Auf der anderen Seite der Buchse ist auf diese eine Scheibe 44 aufgeschoben, die an der Platte 35 anliegt und durch einen Sicherungsring 4 5 auf der Buchse gehalten ist.Link slots 40 and 41 have a bushing 42 that is dimensioned so that it can slide in the link slots without play. On the bushing 42 there is a flange 43 that slides against the plate 34. On the other side of the bushing a disk 44 is pushed onto the plate 35 and is held on the bushing by a locking ring 45.
Wie aus Fig. 1 ersichtlich, befindet sich a: einem unteren Arm 46 des Steuerhebels 1 ein teilweise kugeliges Teil 47, das bündig in das Innere der Buchse 42 eingreift und damit in der Lage ist, die Bewegungen -!es Steuerhebels 1 spielfrei auf die Buchse 42 zu übertragen.As can be seen from Fig. 1, a lower arm 46 of the control lever 1 has a partially spherical part 47 which fits flush into the interior of the bushing 42 and is thus able to transmit the movements of the control lever 1 to the bushing 42 without play.
An der Platte 35 befindet sich ein Zapfen 48, der spielfrei in das Maul einer Gabel 49 eingreift, die als Hebel an einer Achse 50 eines Potentiometers 51 befestigt ist, so daß bei einer Verschiebung der Platte 35 und damit des Zapfens der Hebel 49 geschwenkt und die Achse 50 des Potentiometers gedreht wird.On the plate 35 there is a pin 48 which engages without play in the mouth of a fork 49 which is attached as a lever to an axis 50 of a potentiometer 51, so that when the plate 35 and thus the pin are displaced, the lever 49 is pivoted and the axis 50 of the potentiometer is rotated.
In gleicher Weise befindet sich an der Platte 34 ein Zapfen 52, der in das freie Maul eines als Gabel ausgebildeten Hebels 53 eingreift, der an einer Achse 54 eines Potentiometers 55 befestigt ist. Im Bewegungsbereich des Zapfens 52 weist die Platte 35 eine Ausnehmung 56 auf, damit sich der Zapfen 52 ungestört von der Platte 35 bewegen kann.In the same way, there is a pin 52 on the plate 34, which engages in the free mouth of a lever 53 designed as a fork, which is attached to an axis 54 of a potentiometer 55. In the movement area of the pin 52, the plate 35 has a recess 56 so that the pin 52 can move without interference from the plate 35.
Wie aus den Fig. 4 und 5 ersichtlich, befindet sich an einem Rand 57 der Platte 35 eine Vertiefung 58, während sich an einem Rand 59 der Platte 34 eine Vertiefung 60 befindet. Diese Vertiefungen 58, 60 wirken mit einer Steuerrolle 61 an einem Betätigungsarm 62 eines Mikroschalters 63 zusammen.As can be seen from Fig. 4 and 5, a recess 58 is located on an edge 57 of the plate 35, while a recess 60 is located on an edge 59 of the plate 34. These recesses 58, 60 interact with a control roller 61 on an actuating arm 62 of a microswitch 63.
In der in Fig. 3 dargestellten T.age ruht die Steuerrolle 61 gerade in den übereinanderliegenden Vertiefungen 58, 60, so daß der Mikroschalter 63 je nach seiner Ausführung geschlossen oder geöffnet, ist, während er bei einem Auswandern der Platten 34 oder 35 öffnet oder schließt, Gegenüberliegende Kanten 64 und 65 weisen langgestreckteIn the position shown in Fig. 3, the control roller 61 rests just in the recesses 58, 60 lying one above the other, so that the microswitch 63 is closed or open, depending on its design, while it opens or closes when the plates 34 or 35 move out. Opposite edges 64 and 65 have elongated
ti iiii • ·ti iiii • ·
•-ft —•-ft —
Vertiefungen auf/ die mit einer Steuerrölle 6&bgr; an einem
Betätigungsarm 67 eines Mikrosehalters 68 zusammenwirken,
wobei die Betätigung dieses Mikrosehalters 68 jeweils in
den Endverschiebelagen der Platten 34 und 35 betätigt wird.
Wie insbesondere aus Fig. 1 ersichtlich, ist der gesamte,
unterhalb der Platte 6 liegende Teil zum Teil durch das Gehäuse 5, vollständig jedoch durch eine auf den Flansch 21
aufgesetzte Abdeckkappe 69 vor Feuchtigkeit und Staub geschützt, i
Wie aus den Fig. 1 und 3 zu ersehen ist, wird bei einer | Betätigung des Steuerhebels 1 in Richtung des Kulissenschlitzes I Recesses on/ which are connected to a control roller 6&bgr; on a
Actuating arm 67 of a microscope holder 68,
The operation of this micro holder 68 in each case
the final displacement positions of the plates 34 and 35.
As can be seen in particular from Fig. 1, the entire
The part below the plate 6 is partially fixed by the housing 5, but completely fixed by a flange 21
The cover cap 69 is protected from moisture and dust. As can be seen from Fig. 1 and 3, when the control lever 1 is operated in the direction of the slot I
40 die Buchse 42 gegen den einen Rand des Kulissenschlitzes 41 \
gedrückt, so daß die zugehörige Plätte 34 verschoben und die | Achse 54 des zugehörigen Potentiometers 55 durch den Zapfen 52 |
über den Hebel 53 gedrehi/I^i&rd der Steuerhebel 1 in Richtung |
des Kulissenschlitzes 41 bewegt, so drückt die Buchse 42 gegen ? den seitlichen Rand des Kulissenschlitzes 40, so daß die zugehörige
Platte 35 verschoben und die Achse 50 des Potentiometers 51 über den Zapfen 48 und den Hebel 49 gedreht wird.
Bei Bewegungen in anderen Richtungen werden die beiden Platten40 the bushing 42 is pressed against one edge of the guide slot 41 so that the associated plate 34 is displaced and the | axis 54 of the associated potentiometer 55 is rotated by the pin 52 | via the lever 53. If the control lever 1 is moved in the direction of | the guide slot 41, the bushing 42 presses against ? the lateral edge of the guide slot 40 so that the associated plate 35 is displaced and the axis 50 of the potentiometer 51 is rotated via the pin 48 and the lever 49.
When moving in other directions, the two plates
34 und 35 mehr oder weniger gleichzeitig bewegt, so daß auch
die Potentiometer 51 und 55 entsprechend mehr oder weniger
verstellt werden. Statt von Hand kann der Steuerhebel 1 auch
mit dem Fuß betätigt werden.34 and 35 moved more or less simultaneously, so that
the potentiometers 51 and 55 accordingly more or less
Instead of manually, the control lever 1 can also be
be operated with the foot.
Claims (13)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8710311U DE8710311U1 (en) | 1987-07-28 | 1987-07-28 | Control device for electric wheelchairs or similar. |
| EP88109238A EP0301209B1 (en) | 1987-07-28 | 1988-06-10 | Control device for electrical wheelchairs or the like |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873724915 DE3724915A1 (en) | 1987-07-28 | 1987-07-28 | CONTROL DEVICE FOR ELECTRIC WHEELCHAIRS OR THE LIKE |
| DE8710311U DE8710311U1 (en) | 1987-07-28 | 1987-07-28 | Control device for electric wheelchairs or similar. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8710311U1 true DE8710311U1 (en) | 1988-11-24 |
Family
ID=27664309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8710311U Expired DE8710311U1 (en) | 1987-07-28 | 1987-07-28 | Control device for electric wheelchairs or similar. |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0301209B1 (en) |
| DE (1) | DE8710311U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3927871A1 (en) * | 1989-08-23 | 1991-03-21 | Ortopedia Gmbh | ELECTRONICALLY CONTROLLED WHEELCHAIR |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007172231A (en) | 2005-12-21 | 2007-07-05 | Toyota Industries Corp | Control lever device |
| GB2456542B (en) * | 2008-01-17 | 2009-12-16 | Karma Medical Prod Co Ltd | Controller structure for an electric wheelchair |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818154A (en) * | 1973-04-09 | 1974-06-18 | S Presentey | Joystick type controller for switches |
| US3942148A (en) * | 1974-05-29 | 1976-03-02 | Matsushita Electric Industrial Company, Limited | Device for simultaneously controlling a plurality of variable resistors |
| US4331849A (en) * | 1980-04-16 | 1982-05-25 | Tobin Wolf | Lever control for realistic driving toy |
| US4415782A (en) * | 1981-10-02 | 1983-11-15 | Sundstrand Corporation | Sliding disc transducer actuator |
| US4531027A (en) * | 1984-06-29 | 1985-07-23 | Deere & Company | "Joy-stick" and rocker switch control mechanism |
-
1987
- 1987-07-28 DE DE8710311U patent/DE8710311U1/en not_active Expired
-
1988
- 1988-06-10 EP EP88109238A patent/EP0301209B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3927871A1 (en) * | 1989-08-23 | 1991-03-21 | Ortopedia Gmbh | ELECTRONICALLY CONTROLLED WHEELCHAIR |
| EP0414003A3 (en) * | 1989-08-23 | 1991-09-18 | Ortopedia Gmbh | Electronically controlled wheelchair |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0301209B1 (en) | 1994-10-19 |
| EP0301209A2 (en) | 1989-02-01 |
| EP0301209A3 (en) | 1990-08-22 |
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