WO2008064739A1 - Joystick for a cargo loading system - Google Patents

Joystick for a cargo loading system Download PDF

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Publication number
WO2008064739A1
WO2008064739A1 PCT/EP2007/008946 EP2007008946W WO2008064739A1 WO 2008064739 A1 WO2008064739 A1 WO 2008064739A1 EP 2007008946 W EP2007008946 W EP 2007008946W WO 2008064739 A1 WO2008064739 A1 WO 2008064739A1
Authority
WO
WIPO (PCT)
Prior art keywords
joystick
shaft
link
receiving element
recess
Prior art date
Application number
PCT/EP2007/008946
Other languages
German (de)
French (fr)
Inventor
Gunnar Sems
Alf Paulsen
Detlef Bellersen
Peter Pietsch
Burkhard Schröfel
Thomas Schrank
Original Assignee
Rheinmetall Defence Electronics Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinmetall Defence Electronics Gmbh filed Critical Rheinmetall Defence Electronics Gmbh
Priority to EP07819016A priority Critical patent/EP2095202B1/en
Publication of WO2008064739A1 publication Critical patent/WO2008064739A1/en

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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
    • 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
    • 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
    • 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
    • G05G2009/04766—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

Definitions

  • the present invention relates to a joystick in a control device of a freight loading system, in particular in an aircraft.
  • a joystick serves as an input device for the control of the cargo loading system to the loading personnel.
  • Such a joystick is often subjected to heavy mechanical loads during loading or unloading.
  • the joystick must survive several hundred thousand load cycles and be usable over a wide temperature range.
  • a joystick according to claim 1 has a shaft which is tiltably mounted, wherein a first part of the shaft is actuated by a user, a second part of the shaft in a receiving element of a linearly movable link extends and by means of the receiving element a tilting movement of the shaft can be converted into a linear movement of the link.
  • the direction of movement of the backdrop preferably corresponds to the axial direction of the joystick in the middle position.
  • the second part of the shaft moves through the receiving element. If the shaft slides over a flank of the receiving element, a force is thereby generated which causes a movement of the link.
  • the deflection of the backdrop from its zero position depends, among other things, on the tilt angle of the joystick and the shape of the receiving element. Preferably, the deflection of the scenery from the zero position at the same tilt angle for each tilting direction is the same. Alternatively, the translation can be individually selected for each tilt direction of the joystick.
  • the receiving element is a recess in the backdrop with variable depth.
  • the depth of the recess is decreasing toward the edge.
  • the receiving element is formed cross-shaped.
  • four tilting directions of the joystick are permitted, for example for controlling the four transport directions left, right, front and back of a freight item.
  • the joystick has at least one return element for returning the link to its zero position.
  • the return element generates a force on the slide, which is transmitted to the shaft. The user has to overcome this force when operating the joystick and thus senses a haptic feedback. This force is also used to automatically return the joystick to its center position after actuation.
  • the restoring element is designed so that even in its zero position still a force is exerted on the backdrop.
  • the reset element also ensures a very good centering of the joystick in its center position.
  • the return element is a spring.
  • the joystick has at least one switching means, in particular a microswitch, in the edge region of the receiving element. By means of the switching means is detected as soon as the joystick has exceeded a defined tilt angle and an associated function is performed.
  • the joystick optionally has a switching means, in particular a microswitch, for detecting a push functionality.
  • the joystick is pressed down along its axis, for example, to trigger a split function that separates, for example, two jointly introduced into the cargo space pieces of freight from each other.
  • the actuation path of the joystick corresponds to the deflection of the link from its zero position.
  • An optional additional elastic element between the switching means and the gate or the housing prevents damage to the switching means at excessive pressure force on the joystick.
  • At least one limiting element for the movement of the link and / or the shaft is provided.
  • the limiting element limits the deflection of the link from the zero position when the joystick is pressed down.
  • a limiting element is provided which prevents a generated by a return element movement of the scenery beyond its zero position addition. The force of the return element thus does not act exclusively on the shaft of the joystick, but is partially absorbed by the limiting element.
  • the limiting element is designed to be elastic.
  • the joystick on another switching means for detecting the movement of the backdrop.
  • a switching means for detecting the movement of the backdrop.
  • the switching means With the help of the switching means is detected, whether a predetermined deflection of the backdrop from its zero position and thus, for example, a corresponding tilt angle of the Joysticks is exceeded. Only when this is the case will the selected transport or split function be executed. This is an additional safety measure which avoids actuation of the cargo loading system triggered by a defect of a switching means.
  • the joystick has a sealing element which seals the entry opening of the shaft into the housing of the joystick, for example against dirt or liquids.
  • the sealing element is advantageously made of a material which is elastic over a wide temperature range.
  • FIG. 2 shows the joystick from FIG. 1 in the tilted state
  • Figure 3 shows the joystick of Figure 1 in the pressed state
  • FIG. 4 shows a plan view of the scenery of the joystick from FIG. 1.
  • FIG. 1 shows a joystick 1 according to the invention as input means of a control device, in particular an outside control panel (OCP), of a freight loading system.
  • OCP outside control panel
  • An OCP is located in the cargo hold door area to control the transport of cargo in four directions.
  • the shaft 2 of the joystick 1 is tiltably mounted in the housing 7.
  • the first part 3 of the shaft 2 projects out of the housing and can be actuated by a user.
  • the second part 4 of the shaft 2 extends into a recess 5 in a linearly movable linkage 6.
  • the link 6 has two recesses, over which it is guided by means of the rods 7 and 16 arranged in the housing 7. Because of this guide, the backdrop 6 can only perform a linear translational movement.
  • the possible directions of movement of the backdrop 6 correspond to the axial direction of the shaft 2 in the middle position of the joystick 1 shown in FIG.
  • the introduced into the gate 6 recess 5 is formed cross-shaped, which can be seen in particular in the plan view in Figure 4. In this case, the depth of the recess 5 to the edge, ie to the ends of the cross arms, down from.
  • a micro-switch 10, 11, 14, 15 is arranged, extend their actuators in the recess.
  • Another micro-switch 13 is arranged on the side of the link 6, in which the recess 5 is introduced.
  • Yet another microswitch 12 is disposed below the gate 6 on a circuit board 19.
  • Figure 2 shows the joystick 1 of Figure 1, wherein the shaft 2 is tilted to the right.
  • the end of the second part 4 of the shaft 2 slides over the left flank of the recess 5 and thereby generates a force that the backdrop 6 against the force of the springs 8 and 9 suppressed.
  • the tilting movement of the shaft 2 is converted into a linear movement of the link 6.
  • the translation of the tilt angle in the deflection of the link 6 from its zero position is inter alia dependent on the shape of the flanks of the recess. 5 From a certain tilt angle of the shaft 2, for example, 15 ° from the center position, the operation of the microswitch ends 13. This is signaled to the electronics that the joystick 1 has been pressed.
  • FIG. 3 shows the joystick 1 from FIG. 1 with the shaft 2 pressed down.
  • the same elements again bear the same reference numerals as in FIGS. 1 and 2.
  • a so-called split function is carried out, the two together in the Cargo space introduced freight pieces separated from each other.
  • the operation of the microswitch ends 13 From a certain distance covered the shaft 2 from the unactuated state, for example 3 to 4.5 mm, the operation of the microswitch ends 13.
  • the shaft 2 pushes a pin 18 on the board 19 and bends them through.
  • the pin 18 is preferably mounted on the board 19 and protrudes with its free end into the slot 6.
  • the board 19 is bent so far that the Mikroschaiter 12 is actuated. This signals to the electronics that the joystick 1 has been pushed to a threshold or beyond and that the associated function is to be performed.
  • the board 19 is designed as a spring element, for example by spiral cuts. A large compressive force on the shaft 2 thus leads to a correspondingly strong deflection of the board 19, while damage to the micro-switch 13 is prevented.
  • the deflection of the link 6 from its zero position, in which the actuation of the microswitch 12 takes place greater than the maximum deflection, which can be generated by tilting the shaft 2. This ensures that the microswitch 12 is not actuated in case of exclusive tilting of the shaft 2. This allows detection of the pushing of the shaft 2 while simultaneously detecting a tilt.
  • the above embodiment is purely exemplary and not limiting. This applies in particular to the numerical values or materials specified by the person skilled in the art, depending on the intended use and the dimensioning of the joystick.
  • the number and arrangement of the micro-switches may differ from the example shown.
  • the shape of the recess in the backdrop is purely exemplary to understand. Instead of a recess and any other receiving element can be used, for example in the form of another component which is attached to the backdrop. Also, the leadership of the backdrop in the case is arbitrarily ausgestaltbar.
  • the springs for generating the restoring force on the slide can be designed not only as shown in the figures as compression springs but also as tension springs. Also come other spring shapes such as leaf springs or disc springs into consideration.

Abstract

A joystick (1) in a control device of a cargo loading system, in particular in an aircraft, with a shaft (2) that is mounted in such a manner that it can be tilted, wherein a first part (3) of the shaft (2) can be operated by a user, and a second part (4) of the shaft (2) extends into a socket element (5) of a linearly movable link (6), and a tilting motion of the shaft (2) can be converted by means of the socket element (5) into a linear motion of the link (6).

Description

Rheinmetall Defence Electronics GmbH, Bremen Rheinmetall Defense Electronics GmbH, Bremen
B E S C H R E I B U N GDESCRIPTION
Joystick für ein FrachtladesystemJoystick for a freight loading system
Die vorliegende Erfindung betrifft einen Joystick in einer Steuereinrichtung eines Frachtladesystems, insbesondere in einem Flugzeug.The present invention relates to a joystick in a control device of a freight loading system, in particular in an aircraft.
In Transportmitteln wie beispielsweise Flugzeugen werden oftmals Frachtladesysteme verwendet, um Frachtstücke wie Container oder Paletten in den Frachtraum einzubringen beziehungsweise im Frachtraum zu manövrieren. Als Eingabegerät für die Steuerung des Frachtladesystems dient dem Beladepersonal beispielsweise ein Joystick. Ein derartiger Joystick ist beim Be- oder Entladevorgang häufig starken mechanischen Belastungen ausgesetzt. Darüber hinaus muss der Joystick mehrere einhunderttausend Belastungszyklen überdauern und in einem großen Temperaturbereich einsetzbar sein.In means of transport, such as aircraft, cargo loading systems are often used to load cargo such as containers or pallets in the cargo hold or to maneuver in the cargo hold. For example, a joystick serves as an input device for the control of the cargo loading system to the loading personnel. Such a joystick is often subjected to heavy mechanical loads during loading or unloading. In addition, the joystick must survive several hundred thousand load cycles and be usable over a wide temperature range.
Es ist daher die Aufgabe der vorliegenden Erfindung, einen Joystick in einer Steuereinrichtung eines Frachtladesystems bereitzustellen, der einfach und verschleißarm aufgebaut ist, in einem weiten Temperaturbereich einsetzbar ist und dem Bediener bei der Betätigung eine haptische Rückmeldung gibt.It is therefore the object of the present invention to provide a joystick in a control device of a cargo loading system, which is simple and low-wear, can be used in a wide temperature range and gives the operator a haptic feedback upon actuation.
Gelöst wird diese Aufgabe erfindungsgemäß durch die Merkmale des Patentanspruchs 1. Weitere vorteilhafte Ausgestaltungsformen sind in den abhängigen Patentansprüchen angegeben.This object is achieved according to the invention by the features of claim 1. Further advantageous embodiments are specified in the dependent claims.
Ein Joystick nach Patentanspruch 1 weist einen Schaft auf, der kippbar gelagert ist, wobei ein erster Teil des Schafts von einem Benutzer betätigbar ist, sich ein zweiter Teil des Schafts in ein Aufnahmeelement einer linear beweglichen Kulisse erstreckt und mittels des Aufnahmeelementes eine Kippbewegung des Schafts in eine Linearbewegung der Kulisse umsetzbar ist. Die Bewegungsrichtung der Kulisse entspricht dabei bevorzugt der Achsrichtung des Joysticks in Mittelstellung. Bei Mittelstellung des Joysticks befindet sich gleichzeitig die Kulisse in ihrer Nulllage.A joystick according to claim 1 has a shaft which is tiltably mounted, wherein a first part of the shaft is actuated by a user, a second part of the shaft in a receiving element of a linearly movable link extends and by means of the receiving element a tilting movement of the shaft can be converted into a linear movement of the link. The direction of movement of the backdrop preferably corresponds to the axial direction of the joystick in the middle position. When the joystick is in the middle position, the scenery is in its zero position at the same time.
Bei einer Auslenkung des Joysticks bewegt sich der zweite Teil des Schafts durch das Aufnahmeelement. Gleitet der Schaft über eine Flanke des Aufnahmeelementes, so wird dadurch eine Kraft erzeugt, die eine Bewegung der Kulisse bewirkt. Die Auslenkung der Kulisse aus ihrer Nulllage ist unter anderem abhängig von dem Kippwinkel des Joysticks sowie der Form des Aufnahmeelementes. Bevorzugt ist die Auslenkung der Kulisse aus der Nulllage bei gleichem Kippwinkel für jede Kipprichtung gleich. Alternativ ist die Übersetzung für jede Kipprichtung des Joysticks individuell wählbar.In a deflection of the joystick, the second part of the shaft moves through the receiving element. If the shaft slides over a flank of the receiving element, a force is thereby generated which causes a movement of the link. The deflection of the backdrop from its zero position depends, among other things, on the tilt angle of the joystick and the shape of the receiving element. Preferably, the deflection of the scenery from the zero position at the same tilt angle for each tilting direction is the same. Alternatively, the translation can be individually selected for each tilt direction of the joystick.
Bevorzugt handelt es sich bei dem Aufnahmeelement um eine Ausnehmung in der Kulisse mit veränderlicher Tiefe. Besonders bevorzugt ist die Tiefe der Ausnehmung zum Rand hin abnehmend. Der Vorteil eines als Ausnehmung ausgebildeten Aufnahmeelementes besteht in der einfachen und kostengünstigen Herstellung der Kulisse.Preferably, the receiving element is a recess in the backdrop with variable depth. Particularly preferably, the depth of the recess is decreasing toward the edge. The advantage of a recess formed as a receiving element is the simple and inexpensive production of the scenery.
Bevorzugt ist das Aufnahmeelement kreuzförmig ausgebildet. Dadurch werden vier Kipprichtungen des Joysticks zugelassen, beispielsweise zur Ansteuerung der vier Transportrichtungen links, rechts, vorne und hinten eines Frachtstücks.Preferably, the receiving element is formed cross-shaped. As a result, four tilting directions of the joystick are permitted, for example for controlling the four transport directions left, right, front and back of a freight item.
In einer bevorzugten Ausgestaltungsform weist der Joystick mindestens ein Rückstellelement zur Rückstellung der Kulisse in ihre Nulllage auf. Das Rückstellelement erzeugt eine Kraft auf die Kulisse, die auf den Schaft übertragen wird. Der Benutzer muss diese Kraft bei der Betätigung des Joysticks überwinden und spürt damit eine haptische Rückmeldung. Diese Kraft dient weiterhin dazu, den Joystick nach der Betätigung automatisch in seine Mittelstellung zurückzuführen. In vorteilhafter Weise ist das Rückstellelement so ausgeführt, dass auch in ihrer Nulllage noch eine Kraft auf die Kulisse ausgeübt wird. Das Rückstellelement bewirkt weiterhin eine sehr gute Zentrierung des Joysticks in seiner Mittelstellung. Bevorzugt handelt es sich bei dem Rückstellelement um eine Feder.In a preferred embodiment, the joystick has at least one return element for returning the link to its zero position. The return element generates a force on the slide, which is transmitted to the shaft. The user has to overcome this force when operating the joystick and thus senses a haptic feedback. This force is also used to automatically return the joystick to its center position after actuation. Advantageously, the restoring element is designed so that even in its zero position still a force is exerted on the backdrop. The reset element also ensures a very good centering of the joystick in its center position. Preferably, the return element is a spring.
In einer weiteren Ausgestaltungsform der Erfindung weist der Joystick mindestens ein Schaltmittel, insbesondere einen Mikroschalter, im Randbereich des Aufnahmeelementes auf. Mittels des Schaltmittels wird detektiert, sobald der Joystick einen definierten Kippwinkel überschritten hat und eine zugeordnete Funktion auszuführen ist. Weiterhin weist der Joystick optional ein Schaltmittel, insbesondere einen Mikroschalter, zur Detektion einer Push-Funktionalität auf. Dabei wird der Joystick entlang seiner Achse heruntergedrückt, um beispielsweise eine Split- Funktion auszulösen, die zum Beispiel zwei gemeinsam in den Frachtraum eingebrachte Frachtstücke voneinander trennt. Beim Niederdrücken des Joysticks entspricht der Betätigungsweg des Joysticks der Auslenkung der Kulisse aus ihrer Nulllage. Ein optionales zusätzliches elastisches Element zwischen dem Schaltmittel und der Kulisse beziehungsweise dem Gehäuse verhindert eine Beschädigung des Schaltmittels bei zu starker Druckkraft auf den Joystick.In a further embodiment of the invention, the joystick has at least one switching means, in particular a microswitch, in the edge region of the receiving element. By means of the switching means is detected as soon as the joystick has exceeded a defined tilt angle and an associated function is performed. Furthermore, the joystick optionally has a switching means, in particular a microswitch, for detecting a push functionality. In this case, the joystick is pressed down along its axis, for example, to trigger a split function that separates, for example, two jointly introduced into the cargo space pieces of freight from each other. When depressing the joystick, the actuation path of the joystick corresponds to the deflection of the link from its zero position. An optional additional elastic element between the switching means and the gate or the housing prevents damage to the switching means at excessive pressure force on the joystick.
In einer Ausgestaltungsform des Joysticks ist zumindest ein Begrenzungselement für die Bewegung der Kulisse und/oder des Schafts vorgesehen. Das Begrenzungselement limitiert beispielsweise die Auslenkung der Kulisse aus der Nulllage beim Herunterdrücken des Joysticks. Dadurch wird eine Beschädigung des Schaltmittels zur Detektion der Push-Funktionalität bei zu starker Druckkraft auf den Joystick vermieden. Alternativ oder zusätzlich ist ein Begrenzungselement vorgesehen, das eine durch ein Rückstellelement erzeugt Bewegung der Kulisse über ihre Nulllage hinaus verhindert. Die Kraft des Rückstellelements wirkt somit nicht auschließlich auf den Schaft des Joysticks, sondern wird teilweise vom Begrenzungselement aufgenommen. Optional ist das Begrenzungselement elastisch ausgeführt.In one embodiment of the joystick, at least one limiting element for the movement of the link and / or the shaft is provided. The limiting element, for example, limits the deflection of the link from the zero position when the joystick is pressed down. As a result, damage to the switching means for detecting the push functionality is avoided with excessive pressure force on the joystick. Alternatively or additionally, a limiting element is provided which prevents a generated by a return element movement of the scenery beyond its zero position addition. The force of the return element thus does not act exclusively on the shaft of the joystick, but is partially absorbed by the limiting element. Optionally, the limiting element is designed to be elastic.
Bevorzugt weist der Joystick ein weiteres Schaltmittel, insbesondere einen Mikroschalter, zur Detektion der Bewegung der Kulisse auf. Mit Hilfe des Schaltmittels wird detektiert, ob eine festgelegte Auslenkung der Kulisse aus ihrer Nulllage und damit beispielsweise ein korrespondierender Kippwinkel des Joysticks überschritten ist. Erst wenn dies der Fall ist, wird die angewählte Transport- oder Split-Funktion ausgeführt. Dabei handelt es sich um eine zusätzliche Sicherheitsmaßnahme, durch die eine von einem Defekt eines Schaltmittels ausgelöste Betätigung des Frachtladesystems vermieden wird.Preferably, the joystick on another switching means, in particular a micro-switch, for detecting the movement of the backdrop. With the help of the switching means is detected, whether a predetermined deflection of the backdrop from its zero position and thus, for example, a corresponding tilt angle of the Joysticks is exceeded. Only when this is the case will the selected transport or split function be executed. This is an additional safety measure which avoids actuation of the cargo loading system triggered by a defect of a switching means.
Optional weist der Joystick ein Abdichtelement auf, das die Eintrittsöffnung des Schafts in das Gehäuse des Joysticks beispielsweise gegen Schmutz oder Flüssigkeiten abdichtet. Das Abdichtelement besteht in vorteilhafter Weise aus einem Material, das über einen großen Temperaturbereich elastisch ist.Optionally, the joystick has a sealing element which seals the entry opening of the shaft into the housing of the joystick, for example against dirt or liquids. The sealing element is advantageously made of a material which is elastic over a wide temperature range.
Die vorliegende Erfindung soll anhand eines Ausführungsbeispiels näher erläutert werden. Dabei zeigt:The present invention will be explained in more detail with reference to an embodiment. Showing:
Figur 1 einen Schnitt durch einen erfindungsgemäßen Joystick in Mittelstellung,1 shows a section through a joystick according to the invention in the middle position,
Figur 2 den Joystick aus Figur 1 in gekipptem Zustand,FIG. 2 shows the joystick from FIG. 1 in the tilted state,
Figur 3 den Joystick aus Figur 1 in gedrücktem Zustand undFigure 3 shows the joystick of Figure 1 in the pressed state and
Figur 4 eine Aufsicht auf die Kulisse des Joysticks aus Figur 1.FIG. 4 shows a plan view of the scenery of the joystick from FIG. 1.
Figur 1 zeigt einen erfindungsgemäßen Joystick 1 als Eingabemittel einer Steuereinrichtung, insbesondere eines Outside Control Panels (OCP), eines Frachtladesystems. Ein OCP ist im Bereich der Frachtraumtür angebracht und ermöglicht die Steuerung des Transports von Frachtstücken in vier Richtungen. Der Schaft 2 des Joysticks 1 ist kippbar im Gehäuse 7 gelagert. Der erste Teil 3 des Schafts 2 ragt aus dem Gehäuse heraus und ist von einem Benutzer betätigbar. Der zweite Teil 4 des Schafts 2 erstreckt sich in eine Ausnehmung 5 in einer linear beweglichen Kulisse 6. Die Kulisse 6 weist zwei Ausnehmungen auf, über die sie mittels der im Gehäuse 7 angeordneten Stangen 16 und 17 geführt wird. Aufgrund dieser Führung kann die Kulisse 6 einzig eine lineare, translatorische Bewegung ausführen. Die möglichen Bewegungsrichtungen der Kulisse 6 entsprechen der Achsrichtung des Schafts 2 in der in Figur 1 dargestellten Mittelstellung des Joysticks 1.FIG. 1 shows a joystick 1 according to the invention as input means of a control device, in particular an outside control panel (OCP), of a freight loading system. An OCP is located in the cargo hold door area to control the transport of cargo in four directions. The shaft 2 of the joystick 1 is tiltably mounted in the housing 7. The first part 3 of the shaft 2 projects out of the housing and can be actuated by a user. The second part 4 of the shaft 2 extends into a recess 5 in a linearly movable linkage 6. The link 6 has two recesses, over which it is guided by means of the rods 7 and 16 arranged in the housing 7. Because of this guide, the backdrop 6 can only perform a linear translational movement. The possible directions of movement of the backdrop 6 correspond to the axial direction of the shaft 2 in the middle position of the joystick 1 shown in FIG.
Die in die Kulisse 6 eingebrachte Ausnehmung 5 ist kreuzförmig ausgebildet, was insbesondere in der Aufsicht in Figur 4 ersichtlich ist. Dabei nimmt die Tiefe der Ausnehmung 5 zum Rand, also zu den Enden der Kreuzarme, hin ab. In jedem der Arme ist ein Mikroschalter 10, 11 , 14, 15 angeordnet, deren Betätigungsorgane in die Ausnehmung hineinreichen. Ein weiterer Mikroschalter 13 ist an der Seite der Kulisse 6 angeordnet, in die die Ausnehmung 5 eingebracht ist. Noch ein weiterer Mikroschalter 12 ist unterhalb der Kulisse 6 auf einer Platine 19 angeordnet.The introduced into the gate 6 recess 5 is formed cross-shaped, which can be seen in particular in the plan view in Figure 4. In this case, the depth of the recess 5 to the edge, ie to the ends of the cross arms, down from. In each of the arms, a micro-switch 10, 11, 14, 15 is arranged, extend their actuators in the recess. Another micro-switch 13 is arranged on the side of the link 6, in which the recess 5 is introduced. Yet another microswitch 12 is disposed below the gate 6 on a circuit board 19.
Auf die Stäbe 16 und 17 sind zwei Rückstellelemente in Form von zwei Federn 8 und 9 aufgeschoben, die zwischen der Kulisse 6 und der Bodenplatte des Gehäuses 7 angeordnet sind. Diese Federn 8 und 9 üben eine Kraft auf die Kulisse 6 aus, die diese entlang der Stangen 16 und 17 in Richtung des Schafts 2 drückt. Bei unbetätigtem Joystick 1 ergibt sich der in Figur 1 dargestellte Zustand. Durch die Federn 8 und 9 wird die Kulisse 6 in eine Nulllage gedrückt, in der sie den Schaft 2 zwischen sich und den Lagerpunkt des Schafts 2 im Gehäuse 7 einklemmt. Das Ende des zweiten Teils 4 des Schafts 2 befindet sich im tiefsten Punkt der Ausnehmung 5, wodurch gleichzeitig eine Zentrierung des Joysticks 1 erfolgt. Durch das Gehäuse 7 wird der Mikroschalter 13 betätigt, wodurch der nicht dargestellten Steuerung signalisiert wird, dass der Joystick 1 nicht betätigt ist. Die anderen Mikroschalter 10, 11 , 14, 15 und 12 sind nicht betätigt.On the rods 16 and 17, two return elements in the form of two springs 8 and 9 are pushed, which are arranged between the slide 6 and the bottom plate of the housing 7. These springs 8 and 9 exert a force on the link 6, which presses them along the rods 16 and 17 in the direction of the shaft 2. With unactuated joystick 1, the state shown in Figure 1 results. By the springs 8 and 9, the link 6 is pressed into a zero position in which it clamps the shaft 2 between itself and the bearing point of the shaft 2 in the housing 7. The end of the second part 4 of the shaft 2 is located in the lowest point of the recess 5, whereby at the same time a centering of the joystick 1 takes place. Through the housing 7 of the micro-switch 13 is actuated, whereby the control, not shown, is signaled that the joystick 1 is not actuated. The other micro-switches 10, 11, 14, 15 and 12 are not actuated.
Figur 2 zeigt den Joystick 1 aus Figur 1 , wobei der Schaft 2 nach rechts gekippt ist. Dabei tragen gleiche Elemente die gleichen Bezugszeichen wie in Figur 1. Während des Kippens gleitet das Ende des zweiten Teils 4 des Schafts 2 über die linke Flanke der Ausnehmung 5 und erzeugt dadurch eine Kraft, die die Kulisse 6 gegen die Kraft der Federn 8 und 9 drückt. Somit wird die Kippbewegung des Schafts 2 in eine Linearbewegung der Kulisse 6 umgesetzt. Die Übersetzung des Kippwinkels in die Auslenkung der Kulisse 6 aus ihrer Nulllage ist unter anderem abhängig von der Form der Flanken der Ausnehmung 5. Ab einem gewissen Kippwinkel des Schafts 2, beispielsweise 15° aus der Mittelstellung, endet die Betätigung des Mikroschalters 13. Dadurch wird der Elektronik signalisiert, dass der Joystick 1 betätigt wurde. Ab einer weiteren Auslenkung des Schafts 2, beispielsweise 22,5°, betätigt das Ende des zweiten Teils 4 des Schafts 2 das Betätigungsorgan des Mikroschalters 10. Dadurch wird der Elektronik signalisiert, dass der Joystick 1 bis zu einer Schaltschwelle oder darüber hinaus betätigt wurde und die dieser Betätigung zugeordnete Funktion auszuführen ist. Der Mikroschaiter 12 bleibt weiterhin unbetätigt. Lässt der Benutzer den Joystick 1 los, so führt die von den Federn 8 und 9 auf die Kulisse 6 ausgeübte Kraft dazu, dass das Ende des zweiten Teils 4 des Schaftes 2 über die Flanke der Ausnehmung 5 zurück in die in Figur 1 gezeigte Position gleitet.Figure 2 shows the joystick 1 of Figure 1, wherein the shaft 2 is tilted to the right. During tilting, the end of the second part 4 of the shaft 2 slides over the left flank of the recess 5 and thereby generates a force that the backdrop 6 against the force of the springs 8 and 9 suppressed. Thus, the tilting movement of the shaft 2 is converted into a linear movement of the link 6. The translation of the tilt angle in the deflection of the link 6 from its zero position is inter alia dependent on the shape of the flanks of the recess. 5 From a certain tilt angle of the shaft 2, for example, 15 ° from the center position, the operation of the microswitch ends 13. This is signaled to the electronics that the joystick 1 has been pressed. From a further deflection of the shaft 2, for example 22.5 °, the end of the second part 4 of the shaft 2 actuates the actuating member of the micro-switch 10. This signals to the electronics that the joystick 1 has been actuated to a switching threshold or beyond and the function associated with this operation is to be performed. The microschaiter 12 remains unconfirmed. If the user releases the joystick 1, the force exerted by the springs 8 and 9 on the slide 6 causes the end of the second part 4 of the shaft 2 to slide over the flank of the recess 5 back into the position shown in FIG ,
Figur 3 zeigt den Joystick 1 aus Figur 1 mit heruntergedrücktem Schaft 2. Dabei tragen gleiche Elemente wieder die gleichen Bezugszeichen wie in den Figuren 1 und 2. Durch das Herunterdrücken des Schafts 2 wird beispielsweise eine sogenannte Split-Funktion ausgeführt, die zwei gemeinsam in den Frachtraum eingebrachte Frachtstücke voneinander trennt. Ab einem bestimmten zurückgelegten Weg des Schafts 2 aus dem unbetätigten Zustand, beispielsweise 3 bis 4,5 mm, endet die Betätigung des Mikroschalters 13. Beim Herunterdrücken des Schafts 2 drückt ein Stift 18 auf die Platine 19 und biegt diese durch. Der Stift 18 ist bevorzugt auf der Platine 19 befestigt und ragt mit seinem freien Ende in die Kulisse 6 hinein. Ab einem weiteren Betätigungsweg, beispielsweise 4,5 bis 6 mm, ist die Platine 19 soweit durchgebogen, dass der Mikroschaiter 12 betätigt ist. Dadurch wird der Elektronik signalisiert, dass der Joystick 1 bis zu einer Schaltschwelle oder darüber hinaus gedrückt wurde und die zugeordnete Funktion auszuführen ist. Bevorzugt ist die Platine 19 als Federelement ausgeführt, beispielsweise durch spiralförmige Einschnitte. Eine große Druckkraft auf den Schaft 2 führt somit zu einer entsprechend starken Durchbiegung der Platine 19, während eine Beschädigung des Mikroschalters 13 verhindert wird. Bevorzugt ist die Auslenkung der Kulisse 6 aus ihrer Nulllage, bei der die Betätigung des Mikroschalters 12 erfolgt, größer als die maximale Auslenkung, die durch Kippen des Schafts 2 erzeugbar ist. Dadurch wird erreicht, dass der Mikroschalter 12 bei ausschließlichem Kippen des Schafts 2 nicht betätigt wird. Dies ermöglicht eine Erkennung des Drückens des Schafts 2, während gleichzeitig eine Kippung detektiert wird.FIG. 3 shows the joystick 1 from FIG. 1 with the shaft 2 pressed down. The same elements again bear the same reference numerals as in FIGS. 1 and 2. By pushing down the shaft 2, for example, a so-called split function is carried out, the two together in the Cargo space introduced freight pieces separated from each other. From a certain distance covered the shaft 2 from the unactuated state, for example 3 to 4.5 mm, the operation of the microswitch ends 13. When pushing the shaft 2 pushes a pin 18 on the board 19 and bends them through. The pin 18 is preferably mounted on the board 19 and protrudes with its free end into the slot 6. From a further actuation path, for example, 4.5 to 6 mm, the board 19 is bent so far that the Mikroschaiter 12 is actuated. This signals to the electronics that the joystick 1 has been pushed to a threshold or beyond and that the associated function is to be performed. Preferably, the board 19 is designed as a spring element, for example by spiral cuts. A large compressive force on the shaft 2 thus leads to a correspondingly strong deflection of the board 19, while damage to the micro-switch 13 is prevented. Preferably, the deflection of the link 6 from its zero position, in which the actuation of the microswitch 12 takes place, greater than the maximum deflection, which can be generated by tilting the shaft 2. This ensures that the microswitch 12 is not actuated in case of exclusive tilting of the shaft 2. This allows detection of the pushing of the shaft 2 while simultaneously detecting a tilt.
Das vorstehende Ausführungsbeispiel ist rein exemplarisch und insofern nicht beschränkend. Dies gilt insbesondere für die angegebenen Zahlenwerte oder Materialien, die der Fachmann in Abhängigkeit des Einsatzzwecks und der Dimensionierung des Joysticks wählt. Auch die Anzahl und Anordnung der Mikroschalter kann vom dargestellten Beispiel abweichen. Auch die Form der Ausnehmung in der Kulisse ist rein beispielhaft zu verstehen. Anstatt einer Ausnehmung kann auch ein beliebiges anderes Aufnahmeelement verwendet werden, beispielsweise in Form eines weiteren Bauteils, das an der Kulisse befestigt wird. Auch die Führung der Kulisse im Gehäuse ist beliebig ausgestaltbar. Die Federn zur Erzeugung der Rückstellkraft auf die Kulisse können nicht nur wie in den Figuren dargestellt als Druckfedem sondern auch als Zugfedern ausgebildet sein. Auch kommen andere Federformen wie Blattfedern oder Tellerfedern in Betracht. The above embodiment is purely exemplary and not limiting. This applies in particular to the numerical values or materials specified by the person skilled in the art, depending on the intended use and the dimensioning of the joystick. The number and arrangement of the micro-switches may differ from the example shown. The shape of the recess in the backdrop is purely exemplary to understand. Instead of a recess and any other receiving element can be used, for example in the form of another component which is attached to the backdrop. Also, the leadership of the backdrop in the case is arbitrarily ausgestaltbar. The springs for generating the restoring force on the slide can be designed not only as shown in the figures as compression springs but also as tension springs. Also come other spring shapes such as leaf springs or disc springs into consideration.

Claims

Rheinmetall Defence Electronics GmbH, BremenP A T E N T A N S P R U C H E Rheinmetall Defense Electronics GmbH, Bremen P USER CLAIMS
1.1.
Joystick (1) in einer Steuereinrichtung eines Frachtladesystems, insbesondere in einem Flugzeug, mit einem Schaft (2), der kippbar gelagert ist, wobei ein erster Teil (3) des Schafts (2) von einem Benutzer betätigbar ist, sich ein zweiter Teil (4) des Schafts (2) in ein Aufnahmeelement (5) einer linear beweglichen Kulisse (6) erstreckt und mittels des Aufnahmeelements (5) eine Kippbewegung des Schafts (2) in eine Linearbewegung der Kulisse (6) umsetzbar ist.Joystick (1) in a control device of a freight loading system, in particular in an aircraft, with a shaft (2) which is tiltably mounted, wherein a first part (3) of the shaft (2) is actuated by a user, a second part ( 4) of the shaft (2) into a receiving element (5) of a linearly movable link (6) and by means of the receiving element (5) a tilting movement of the shaft (2) in a linear movement of the link (6) can be implemented.
2.Second
Joystick (1) nach Anspruch 1 , dadurch gekennzeichnet, dass es sich bei dem Aufnahmeelement (5) um eine Ausnehmung in der Kulisse (6) mit veränderlicher Tiefe handelt.Joystick (1) according to Claim 1, characterized in that the receiving element (5) is a recess in the link (6) of variable depth.
3.Third
Joystick (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Tiefe derJoystick (1) according to claim 2, characterized in that the depth of
Ausnehmung (5) zum Rand hin abnehmend ist.Recess (5) is decreasing toward the edge.
4.4th
Joystick (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Aufnahmeelement (5) kreuzförmig ausgebildet ist.Joystick (1) according to one of claims 1 to 3, characterized in that the receiving element (5) is cross-shaped.
5.5th
Joystick (1) nach einem der Ansprüche 1 bis 4, gekennzeichnet durch mindestens ein Rückstellelement (8, 9) zur Rückstellung der Kulisse (6) in eine Nulllage. Joystick (1) according to one of claims 1 to 4, characterized by at least one return element (8, 9) for returning the link (6) to a zero position.
6.6th
Joystick (1) nach Anspruch 5, dadurch gekennzeichnet, dass es sich bei dem Rückstellelement (8, 9) um eine Feder handelt.Joystick (1) according to claim 5, characterized in that it is the return element (8, 9) is a spring.
7.7th
Joystick (1) nach einem der Ansprüche 1 bis 6, gekennzeichnet durch mindestens ein Schaltmittel (10, 11 , 14, 15), insbesondere einen Mikroschalter, im Randbereich des Aufnahmeelements (5).Joystick (1) according to one of claims 1 to 6, characterized by at least one switching means (10, 11, 14, 15), in particular a microswitch, in the edge region of the receiving element (5).
8.8th.
Joystick (1) nach einem der Ansprüche 1 bis 7, gekennzeichnet durch ein Schaltmittel (13), insbesondere einen Mikroschalter, zur Detektion einer Druckbewegung des Schafts (2).Joystick (1) according to one of claims 1 to 7, characterized by a switching means (13), in particular a microswitch, for detecting a pressure movement of the shaft (2).
9.9th
Joystick (1) nach einem der Ansprüche 1 bis 8, gekennzeichnet durch ein Schaltmittel (13), insbesondere einen Mikroschalter, zur Detektion der Bewegung der Kulisse (6). Joystick (1) according to one of claims 1 to 8, characterized by a switching means (13), in particular a microswitch, for detecting the movement of the link (6).
PCT/EP2007/008946 2006-12-02 2007-10-16 Joystick for a cargo loading system WO2008064739A1 (en)

Priority Applications (1)

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DE200610056862 DE102006056862A1 (en) 2006-12-02 2006-12-02 Joystick for a freight loading system
DE102006056862.1 2006-12-02

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Publication number Priority date Publication date Assignee Title
FR2940846B1 (en) * 2009-01-05 2011-03-18 Guillemot Corp DEVICE FOR DETECTING THE MOTION OF A HALL EFFECT SHAFT, MANUFACTURING METHOD AND HANDLE THEREFOR
FR2954980B1 (en) * 2010-01-04 2012-02-10 Guillemot Corp JOYSTICK WITH COMPENSATION SPRINGS, MANUFACTURING METHOD AND CORRESPONDING LEVER.
DE102020123843A1 (en) 2020-09-14 2022-03-17 elobau GmbH & Co.KG Control lever with link system

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JPH10283885A (en) * 1997-04-10 1998-10-23 Teikoku Tsushin Kogyo Co Ltd Multi-directionally swinging electronic component

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DE2035283A1 (en) * 1969-07-18 1971-02-04 Telemeccanica Elettnca Officine Meccaniche Riunite SpA, Mailand (Ita hen) Switch with universally movable lever
US3827313A (en) * 1973-01-24 1974-08-06 Square D Co Miniaturized joystick and cam structure with push button switch operating means
US3818154A (en) * 1973-04-09 1974-06-18 S Presentey Joystick type controller for switches
US4849583A (en) * 1987-07-28 1989-07-18 Wilhelm Meyer Gmbh & Co. Kg Electrical joy stick control device
JPH10283885A (en) * 1997-04-10 1998-10-23 Teikoku Tsushin Kogyo Co Ltd Multi-directionally swinging electronic component

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DE102006056862A1 (en) 2008-06-05
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