EP1294452B1 - Ergometer - Google Patents
Ergometer Download PDFInfo
- Publication number
- EP1294452B1 EP1294452B1 EP01942864A EP01942864A EP1294452B1 EP 1294452 B1 EP1294452 B1 EP 1294452B1 EP 01942864 A EP01942864 A EP 01942864A EP 01942864 A EP01942864 A EP 01942864A EP 1294452 B1 EP1294452 B1 EP 1294452B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ergometer
- pedal
- pedals
- crank
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
- A63B22/0007—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms by alternatively exercising arms or legs, e.g. with a single set of support elements driven either by the upper or the lower limbs
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
- A63B2022/0611—Particular details or arrangement of cranks
- A63B2022/0617—Particular details or arrangement of cranks with separate crank axis for each limb, e.g. being separately adjustable or non parallel
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/012—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters
- A63B21/015—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters including rotating or oscillating elements rubbing against fixed elements
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/22—Resisting devices with rotary bodies
- A63B21/225—Resisting devices with rotary bodies with flywheels
Definitions
- the invention relates to an ergometer, preferably a bicycle ergometer, with a pedal arrangement mounted in a frame and an adjustable braking device, the two pedals of the pedal arrangement being independent of one another, with the exclusion of power transmission from one pedal to the other are.
- Bicycle ergometers have recently found a wide range of applications. So these are in addition to private use both in medicine, in particular in sports medicine for performance diagnostics, as well as for checking the Training progress used in high-performance sports. Another possible application arises in rehabilitation, for example in the event of an accident or Stroke patients.
- DE 36 03 853 A1 describes a bicycle ergometer with a Pedal arrangement has become known, which is an adjustable braking device and has a display instrument for the braking torque.
- a display instrument for the braking torque In the area of handlebar-like Handles is arranged on a panel, which is a pointer instrument for the torque and the speed.
- the user of the ergometer receives information on the one hand about what to overcome the set Braking force required torque as well as the respectively achieved Rotational speed.
- an ergometer is known from DE 42 27 586 A1, which can be found and training the optimal movement.
- the device can be constructive and destructive levels of force that a cyclist uses on the pedals releases, be recorded in real time and under real training conditions.
- the elastic deformations relevant to the pedal lever as well Deformation of handlebar and seat post by suitably arranging strain gauges selectively and independently recorded. From the won The cyclist's complete movement sequence can be determined using data and be optimized, which means force components that are moving forward are implemented, maximized and power components that are not in Forward movement can be implemented because it is static, for example Generate counterforce, be minimized.
- the device is disadvantageous Relatively complex, since up to four possible elastic deformations per pedal lever (Bend in the direction of rotation, bend perpendicular to it, elongation in the longitudinal direction of the pedal lever, torsion about the longitudinal axis of the pedal lever) separately and must be recorded and evaluated independently of one another.
- Another class of bicycle ergometers is used in medical diagnostics to determine the aerobic / anaerobic threshold of a patient, whereby the performance is usually increased gradually and different patient data such as heart rate, O 2 and CO 2 content of the breathing air etc. are determined .
- Such ergometers are known for example from US 4,463,764 A and US 5,782,772 A.
- the above devices are not suitable differences in the pedaling behavior of a subject's left and right legs if possible unaffected by disturbances and with high resolution within one To hold the crank rotation.
- a training device is known from WO 97/26948 A1, which is equipped with an in a frame mounted pedal assembly and an adjustable braking device is equipped, with both pedals of the pedal arrangement independent from each other, excluding power transmission from a pedal to others are stored.
- the known device also has a coupling device for the two pedals that can be moved independently of each other the training facility as a conventional bicycle ergometer with a 180 ° geometry for the two pedal arrangements can be operated.
- the Training device has two gear motors, which are used to adjust the braking force serve, the tension of a brake band is changed, which as band brakes on the brake disc of the left or right pedal arrangement acts.
- WO 99/62600 also shows A1 a pedal arrangement, the pedals have no common axis.
- the object of the invention is based on an ergometer of the aforementioned Kind of showing improvements that allow the torque curve each crank or leg separately with high resolution inside a crank rotation and the use of the ergometer in the area improve rehabilitation.
- each of the two pedals has one in its Power adjustable auxiliary motor is switchable.
- There is also one for each pedal separate braking device is provided, the braking force of which is independent of one another is adjustable and preferably attacks the flywheels of the ergometer Due to the complete mechanical separation of the power flow of both pedals their torque curve can be independent of the crank angle recorded from each other and after processing in a computer unit on a Display device in the field of vision of the exercising person or a patient in transferred to rehabilitation.
- each pedal is a torque sensor and / or a speed sensor, which with a computer unit including a display device, preferably a monitor, communicates.
- a computer unit including a display device, preferably a monitor.
- a torque or force / angle curve of the respective can be displayed on the monitor Represent leg.
- the driver can use this feedback system directly and arbitrarily influence its turning behavior in order to reduce side differences and consciously work on its "bilateralism".
- each of the two auxiliary motors can have an anti-spasm control which occur when a sudden change in resistance occurs can be activated automatically.
- a patient uses an ergometer, which one pedaling is assisted by an auxiliary motor, it is advantageous if the engine when spasms occur (suddenly occurring, greatly inflated Muscle tone) switches off or the direction of rotation changes. This can prevent that the spastic extremity is violently moved by the auxiliary motor becomes.
- the force separation in the crank mechanism of the ergometer can be according to one Embodiment variants of the invention can be produced in that one of the Pedals a crank axle with a tubular extension and the other pedal has a crank axis with a cylindrical extension, the cylindrical Extension is rotatably mounted in the tubular extension.
- the two extensions can be used as a conventional bicycle ergometer have aligned radial holes, by inserting a fixing screw in the radial bores the pedal arrangement in a 180 ° geometry is fixable.
- the ergometer shown schematically in FIG. 1 has one in a frame 1 mounted pedal assembly 2, which via a chain drive 3 on two separately mounted flywheels 4 acts with a braking device 5, the Braking force is adjustable independently.
- the regulation of the braking force can be mechanically or controlled by the in a manner not shown Computer unit 6 electromechanically, for example on the principle of an eddy current brake respectively.
- the two pedals 7 and 8 of the pedal arrangement 2 are independently of each other - excluding power transmission from the pedal 7 to pedal 8 - stored in frame 1.
- On the crank axes 7 ', 8' of each pedal 7, 8 is a torque sensor 9, which with the computer unit 6 in Connection is established.
- the computer unit 6 stands with a display device 10, preferably a monitor, in connection, which is in the visual field of the user is arranged.
- the computing unit and the monitor can also become one Unit summarized and in the area of the handlebar-like handles of the Ergometers can be arranged.
- a speed sensor can be provided on each crank axis 7 ', 8' 11 may be arranged.
- each of the two pedals is 7 and 8 the output of an auxiliary motor 12 which can be regulated in terms of its output, the movement of the extremity affected by the stroke by the auxiliary motor 12 is supported.
- FIG. 2 shows a possible embodiment variant of a bottom bracket unit of the ergometer, in which one of the pedals has a crank axis 7 'with a tubular Extension 13 and the other pedal a crank axis 8 'with a cylindrical Has extension 14, the cylindrical extension 14 in the tubular extension 13 is rotatably mounted.
- the crank axis 7 ' is mounted twice in the bearing housing 15 (see bearings 16, 17), the crank axis 8 'is through the bearing 18 as well by the bearing 18 ', which is only indicated by dashed lines, is also stored twice, as a result of which a compact design is realized.
- Between the two bearings 16 and 17 a spacer sleeve 26 is arranged between the two bearings 16 and 17 .
- the chainring 19 is on both sides with the help of an adapter plate 20 a flange 21 of the crank axis 7 'or 8' attached.
- the chain fender is marked with 22 on both sides.
- the torque sensor 9 is, for example from a torsion ring attached to the crank axles 7 'or 8' 23, which with a preferably attached to the chain guard 22 data collector 24 cooperates.
- the outgoing from the data collector 24 to the computer unit 6 leading signal line is designated 25.
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
Description
Die Erfindung betrifft ein Ergometer, vorzugsweise Fahrrad-Ergometer, mit einer in einem Rahmen gelagerten Pedalanordnung und einer einstellbaren Bremseinrichtung, wobei die beiden Pedale der Pedalanordnung unabhängig voneinander, unter Ausschluss einer Kraftübertragung von einem Pedal zum anderen, gelagert sind.The invention relates to an ergometer, preferably a bicycle ergometer, with a pedal arrangement mounted in a frame and an adjustable braking device, the two pedals of the pedal arrangement being independent of one another, with the exclusion of power transmission from one pedal to the other are.
Fahrrad-Ergometer haben in letzter Zeit ein weites Anwendungsfeld gefunden. So werden diese neben der privaten Anwendung sowohl in der Medizin, insbesondere in der Sportmedizin zur Leistungsdiagnostik, als auch zur Überprüfung des Trainingsfortschrittes im Hochleistungssport verwendet. Eine weitere Einsatzmöglichkeit ergibt sich in der Rehabilitation, beispielsweise bei Unfall- oder Schlaganfallpatienten.Bicycle ergometers have recently found a wide range of applications. So these are in addition to private use both in medicine, in particular in sports medicine for performance diagnostics, as well as for checking the Training progress used in high-performance sports. Another possible application arises in rehabilitation, for example in the event of an accident or Stroke patients.
So ist beispielsweise aus der DE 36 03 853 A1 ein Fahrrad-Ergometer mit einer Pedalanordnung bekannt geworden, welches eine einstellbare Bremseinrichtung und ein Anzeigeinstrument für das Bremsmoment aufweist. Im Bereich der lenkstangenartigen Haltegriffe ist ein Paneel angeordnet, welches ein Zeigerinstrument für das Drehmoment und die Drehzahl aufweist. Der Benutzer des Ergometers erhält somit einerseits Auskunft über das für die Überwindung der eingestellten Bremskraft notwendige Drehmoment sowie über die jeweils erreichte Drehzahl.For example, DE 36 03 853 A1 describes a bicycle ergometer with a Pedal arrangement has become known, which is an adjustable braking device and has a display instrument for the braking torque. In the area of handlebar-like Handles is arranged on a panel, which is a pointer instrument for the torque and the speed. The user of the ergometer receives information on the one hand about what to overcome the set Braking force required torque as well as the respectively achieved Rotational speed.
Weiters ist aus der DE 42 27 586 A1 ein Ergometer bekannt, welches dem Auffinden und Trainieren des optimalen Bewegungsablaufs dient. Mit dem Gerät können konstruktive und destruktive Kraftanteile, die ein Radfahrer auf die Pedale freisetzt, in Echtzeit und unter realen Trainingsbedingungen erfasst werden. Dazu werden die am Pedalhebel relevanten elastischen Verformungen sowie Verformungen von Lenk- und Sattelstange durch geeignetes Anordnen von Dehnungsmessstreifen selektiv und unabhängig voneinander erfasst. Aus den gewonnen Daten kann der vollständige Bewegungsablauf des Radfahrers ermittelt und optimiert werden, was bedeutet, dass Kraftkomponenten, die in Vorwärtsbewegung umgesetzt werden, maximiert und Kraftkomponenten, die nicht in Vorwärtsbewegung umgesetzt werden können, weil sie beispielsweise eine statische Gegenkraft erzeugen, minimiert werden. Nachteiligerweise ist die Vorrichtung relativ aufwendig, da pro Pedalhebel bis zu vier mögliche elastische Verformungen (Biegung in Drehrichtung, Biegung senkrecht dazu, Dehnung in Längsrichtung des Pedalhebels, Torsion um die Längsachse des Pedalhebels) getrennt und unabhängig voneinander erfasst und ausgewertet werden müssen.Furthermore, an ergometer is known from DE 42 27 586 A1, which can be found and training the optimal movement. With the device can be constructive and destructive levels of force that a cyclist uses on the pedals releases, be recorded in real time and under real training conditions. For this purpose, the elastic deformations relevant to the pedal lever as well Deformation of handlebar and seat post by suitably arranging strain gauges selectively and independently recorded. From the won The cyclist's complete movement sequence can be determined using data and be optimized, which means force components that are moving forward are implemented, maximized and power components that are not in Forward movement can be implemented because it is static, for example Generate counterforce, be minimized. The device is disadvantageous Relatively complex, since up to four possible elastic deformations per pedal lever (Bend in the direction of rotation, bend perpendicular to it, elongation in the longitudinal direction of the pedal lever, torsion about the longitudinal axis of the pedal lever) separately and must be recorded and evaluated independently of one another.
Eine weitere Klasse von Fahrrad-Ergometern dient in der medizinischen Diagnostik dazu, die aerob/anaerobe Schwelle eines Patienten zu bestimmen, wobei die Leistung meist stufenweise erhöht und unterschiedliche Patientendaten, wie Herzfrequenz, O2 und CO2-Gehalt der Atemluft etc. bestimmt werden. Derartige Ergometer sind beispielsweise aus der US 4,463,764 A und der US 5,782,772 A bekannt geworden.Another class of bicycle ergometers is used in medical diagnostics to determine the aerobic / anaerobic threshold of a patient, whereby the performance is usually increased gradually and different patient data such as heart rate, O 2 and CO 2 content of the breathing air etc. are determined , Such ergometers are known for example from US 4,463,764 A and US 5,782,772 A.
Nachteiligerweise sind die oben angeführten Vorrichtungen nicht geeignet Unterschiede im Tretverhalten des linken und rechten Beines eines Probanden möglichst unbeeinflusst von Störgrößen und mit hoher Auflösung innerhalb einer Kurbelumdrehung festzuhalten.Disadvantageously, the above devices are not suitable differences in the pedaling behavior of a subject's left and right legs if possible unaffected by disturbances and with high resolution within one To hold the crank rotation.
Aus der WO 97/26948 A1 ist ein Trainingsgerät bekannt, welches mit einer in einem Rahmen gelagerten Pedalanordnung und einer einstellbaren Bremseinrichtung ausgestattet ist, wobei beide Pedale der Pedalanordnung unabhängig voneinander, unter Ausschluss einer Kraftübertragung von einem Pedal zum anderen gelagert sind. Die bekannte Vorrichtung weist weiters eine Koppeleinrichtung für die beiden unabhängig voneinander bewegbaren Pedale auf, mit welcher die Trainingseinrichtung als herkömmliches Fahrradergometer mit einer 180°-Geometrie für die beiden Pedalanordnungen betrieben werden kann. Das Trainingsgerät weist zwei Getriebemotoren auf, die zur Verstellung der Bremskraft dienen, wobei die Spannung je eines Bremsbandes verändert wird, welches als Bandbremsen auf die Bremsscheibe der linken bzw. der rechten Pedalanordnung einwirkt.A training device is known from WO 97/26948 A1, which is equipped with an in a frame mounted pedal assembly and an adjustable braking device is equipped, with both pedals of the pedal arrangement independent from each other, excluding power transmission from a pedal to others are stored. The known device also has a coupling device for the two pedals that can be moved independently of each other the training facility as a conventional bicycle ergometer with a 180 ° geometry for the two pedal arrangements can be operated. The Training device has two gear motors, which are used to adjust the braking force serve, the tension of a brake band is changed, which as band brakes on the brake disc of the left or right pedal arrangement acts.
Aus der DE 198 19 957 ist ein Radsportgerät für Einbeintraining bekannt, dessen beide Antriebe frei voneinander zu bewegen sind. Weiters zeigt die WO 99/62600 A1 eine Pedalanordnung, deren Pedale keine gemeinsame Achse aufweisen.From DE 198 19 957 a cycling device for one-leg training is known, the both drives can be moved freely from each other. WO 99/62600 also shows A1 a pedal arrangement, the pedals have no common axis.
Aufgabe der Erfindung ist es, ausgehend von einem Ergometer der eingangs erwähnten Art Verbesserungen aufzuzeigen, die es gestatten, den Drehmomentverlauf jeder Kurbel bzw. jedes Beines separat mit hoher Auflösung innerhalb einer Kurbelumdrehung zu erfassen und den Einsatz des Ergometers im Bereich der Rehabilitation zu verbessern.The object of the invention is based on an ergometer of the aforementioned Kind of showing improvements that allow the torque curve each crank or leg separately with high resolution inside a crank rotation and the use of the ergometer in the area improve rehabilitation.
Diese Aufgabe wird dadurch gelöst, dass jedem der beiden Pedale ein in seiner Leistung regelbarer Hilfsmotor zuschaltbar ist. Weiters ist für jedes Pedal eine separate Bremseinrichtung vorgesehen, deren Bremskraft unabhängig voneinander regelbar ist und bevorzugt an den Schwungscheiben des Ergometers angreift Durch die vollständige mechanische Trennung des Kraftflusses beider Pedale kann deren Drehmomentverlauf in Abhängigkeit vom Kurbelwinkel unabhängig voneinander erfasst und nach Aufbereitung in einer Rechnereinheit auf eine Anzeigeeinrichtung im Sichtfeld der trainierenden Person oder eines Patienten in der Rehabilitation übertragen werden.This task is solved in that each of the two pedals has one in its Power adjustable auxiliary motor is switchable. There is also one for each pedal separate braking device is provided, the braking force of which is independent of one another is adjustable and preferably attacks the flywheels of the ergometer Due to the complete mechanical separation of the power flow of both pedals their torque curve can be independent of the crank angle recorded from each other and after processing in a computer unit on a Display device in the field of vision of the exercising person or a patient in transferred to rehabilitation.
Zu diesem Zweck ist erfindungsgemäß vorgesehen, dass sich an der Kurbelachse jedes Pedals ein Drehmomentsensor und/oder ein Drehzahlgeber befindet, welcher mit einer Rechnereinheit samt Anzeigeeinrichtung, vorzugsweise einem Monitor, in Verbindung steht. Mit den Daten der Sensoren an den Kurbelachsen lässt sich auf dem Monitor eine Drehmoment bzw. Kraft-/Winkelkurve des jeweiligen Beines darstellen. Über dieses Feedback-System kann der Fahrer direkt und willkürlich sein Drehverhalten beeinflussen, um Seitendifferenzen zu vermindern und bewusst an seiner "Beidseitigkeit" zu arbeiten.For this purpose it is provided according to the invention that on the crank axis each pedal is a torque sensor and / or a speed sensor, which with a computer unit including a display device, preferably a monitor, communicates. With the data from the sensors on the crank axles a torque or force / angle curve of the respective can be displayed on the monitor Represent leg. The driver can use this feedback system directly and arbitrarily influence its turning behavior in order to reduce side differences and consciously work on its "bilateralism".
Die Einsatzgebiete des erfindungsgemäßen Ergometers liegen hauptsächlich in zwei Bereichen:
- Sportmedizin/Leistungsdiagnose Durch die erfindungsgemäße Vorrichtung kann hier innerhalb kurzer Zeit eine Verbesserung des biomechanischen Wirkungsgrades um ca. 25% erreicht werden. Einseitige Belastungen, die Abnützungserscheinungen zur Folge haben, können frühzeitig diagnostiziert und therapiert werden.
- Rehabilitation Eine erfolgreiche Anwendung des erfindungsgemäßen Ergometers ist bei allen Krankheitsbildern gegeben, die eine Kraft-/Koordinationsdifferenz zweier Extremitäten zur Folge haben, z.B. Schlaganfall, Atrophien verschiedener Genese, Myopathien und vieles mehr, wobei jedem der beiden Pedale ein in seiner Leistung regelbarer Hilfsmotor zuschaltbar ist. In diesem Zusammenhang ist es auch möglich, die beiden Pedale als Handkurbeln auszubilden, um beispielsweise nach einem Schlaganfall das Zusammenspiel der Muskel des betroffenen Armes wieder herzustellen.
- Sports medicine / performance diagnosis With the device according to the invention, the biomechanical efficiency can be improved by about 25% within a short time. One-sided stresses that result in wear and tear can be diagnosed and treated early on.
- Rehabilitation The ergometer according to the invention can be used successfully in all clinical pictures which result in a force / coordination difference between two extremities, for example stroke, atrophies of various origins, myopathies and much more, with each of the two pedals having an auxiliary motor which can be controlled in terms of its output , In this context, it is also possible to design the two pedals as hand cranks, in order, for example, to restore the interaction of the muscles of the arm concerned after a stroke.
Erfindungsgemäß kann jeder der beiden Hilfsmotoren eine Anti-Spasmus-Steuerung aufweisen, welche beim Auftreten einer plötzlichen Widerstandsänderung selbsttätig aktivierbar ist. Wenn ein Patient ein Ergometer benutzt, bei welchem durch einen Hilfsmotor das Pedalieren unterstützt wird, ist es von Vorteil, wenn der Motor beim Auftreten von Spasmen (plötzlich auftretender, stark überhöhter Muskeltonus) abschaltet bzw. die Drehrichtung ändert. Damit kann verhindert werden, dass die spastische Extremität durch den Hilfsmotor gewaltsam bewegt wird.According to the invention, each of the two auxiliary motors can have an anti-spasm control which occur when a sudden change in resistance occurs can be activated automatically. When a patient uses an ergometer, which one pedaling is assisted by an auxiliary motor, it is advantageous if the engine when spasms occur (suddenly occurring, greatly inflated Muscle tone) switches off or the direction of rotation changes. This can prevent that the spastic extremity is violently moved by the auxiliary motor becomes.
Die kraftmäßige Trennung im Kurbeltrieb des Ergometers kann gemäß einer Ausführungsvariante der Erfindung dadurch hergestellt werden, dass eines der Pedale eine Kurbelachse mit einem rohrförmigen Fortsatz und das andere Pedal eine Kurbelachse mit einem zylindrischen Fortsatz aufweist, wobei der zylindrische Fortsatz im rohrförmigen Fortsatz drehbar gelagert ist. Für Anwendungen als herkömmliches Fahrrad-Ergometer können die beiden Fortsätze zueinander fluchtende Radialbohrungen aufweisen, wobei durch Einsetzen einer Fixierschraube in die Radialbohrungen die Pedalanordnung in einer 180° Geometrie fixierbar ist.The force separation in the crank mechanism of the ergometer can be according to one Embodiment variants of the invention can be produced in that one of the Pedals a crank axle with a tubular extension and the other pedal has a crank axis with a cylindrical extension, the cylindrical Extension is rotatably mounted in the tubular extension. For applications the two extensions can be used as a conventional bicycle ergometer have aligned radial holes, by inserting a fixing screw in the radial bores the pedal arrangement in a 180 ° geometry is fixable.
Die Erfindung wird im Folgenden anhand von Figuren näher erläutert. Es zeigen
- Fig. 1
- eine schematische Darstellung des erfindungsgemäßen Ergometers,
- Fig. 2
- die Tretlagereinheit des Ergometers nach Fig. 1 in einem Axialschnitt, sowie
- Fig. 3
- ein Diagramm des Drehmomentsverlaufs in Abhängigkeit des Kurbelwinkels.
- Fig. 1
- 1 shows a schematic representation of the ergometer according to the invention,
- Fig. 2
- the bottom bracket unit of the ergometer of FIG. 1 in an axial section, and
- Fig. 3
- a diagram of the torque curve as a function of the crank angle.
Das in Fig. 1 schematisch dargestellte Ergometer weist eine in einem Rahmen 1
gelagerte Pedalanordnung 2 auf, welche über einen Kettentrieb 3 auf zwei separat
gelagerte Schwungscheiben 4 mit einer Bremseinrichtung 5 wirkt, deren
Bremskraft unabhängig voneinander regelbar ist. Die Regelung der Bremskraft
kann auf nicht weiter dargestellte Weise mechanisch oder gesteuert durch die
Rechnereinheit 6 elektromechanisch, beispielsweise nach dem Prinzip einer Wirbelstrombremse
erfolgen. Die beiden Pedale 7 und 8 der Pedalanordnung 2 sind
unabhängig voneinander - unter Ausschluss einer Kraftübertragung vom Pedal 7
zum Pedal 8 - im Rahmen 1 gelagert. An den Kurbelachsen 7', 8' jedes Pedals 7,
8 befindet sich ein Drehmomentsensor 9, welcher mit der Rechnereinheit 6 in
Verbindung steht. Die Rechnereinheit 6 steht mit einer Anzeigeeinrichtung 10,
vorzugsweise einem Monitor, in Verbindung, welcher im Gesichtsfeld des Benutzers
angeordnet ist. Die Rechnereinheit und der Monitor können auch zu einer
Einheit zusammengefasst und im Bereich der lenkstangenartigen Haltegriffe des
Ergometers angeordnet sein. Weiters kann an jeder Kurbelachse 7', 8' ein Drehzahlgeber
11 angeordnet sein. Für bestimmte Anwendungsgebiete in der Rehabilitation,
beispielsweise nach Schlaganfällen, ist jedem der beiden Pedale 7 und 8
des Ergometers ein in seiner Leistung regelbarer Hilfsmotor 12 zugeschaltet sein,
wobei die Bewegung der jeweils vom Schlaganfall betroffenen Extremität durch
den Hilfsmotor 12 unterstützt wird.The ergometer shown schematically in FIG. 1 has one in a
Fig. 2 zeigt eine mögliche Ausführungsvariante einer Tretlagereinheit des Ergometers,
bei welcher eines der Pedale eine Kurbelachse 7' mit einem rohrförmigen
Fortsatz 13 und das andere Pedal eine Kurbelachse 8' mit einem zylindrischen
Fortsatz 14 aufweist, wobei der zylindrische Fortsatz 14 im rohrförmigen Fortsatz
13 drehbar gelagert ist. Die Kurbelachse 7' ist im Lagergehäuse 15 zweifach gelagert
(siehe Lager 16, 17), die Kurbelachse 8' ist durch das Lager 18 sowie
durch das nur strichliert angedeutete Lager 18' ebenfalls zweifach gelagert, wodurch
eine kompakte Bauweise realisiert wird. Zwischen den beiden Lagern 16
und 17 ist eine Distanzhülse 26 angeordnet. Die beiden Fortsätze 13, 14 weisen
zueinander fluchtende Radialbohrungen 13', 14' auf, wobei durch Einsetzen einer
(nicht dargestellten) Fixierschraube in die Radialbohrungen die Pedalanordnung 2
in einer 180° Geometrie fixierbar ist.2 shows a possible embodiment variant of a bottom bracket unit of the ergometer,
in which one of the pedals has a crank axis 7 'with a
Das Kettenblatt 19 wird auf beiden Seiten mit Hilfe einer Adapterscheibe 20 an
einem Flansch 21 der Kurbelachse 7' bzw. 8' befestigt. Das Kettenschutzblech
auf beiden Seiten ist mit 22 bezeichnet. Der Drehmomentsensor 9 besteht beispielsweise
aus einem an den Kurbelachsen 7' bzw. 8' befestigten Torsionsring
23, welcher mit einem vorzugsweise am Kettenschutzblech 22 fixierten Datenabnehmer
24 zusammenwirkt. Die vom Datenabnehmer 24 ausgehende zur Rechnereinheit
6 führende Signalleitung ist mit 25 bezeichnet.The
Fig. 3 zeigt den Verlauf des Drehmoments in Abhängigkeit vom Kurbelwinkel, wobei beispielsweise für das linke Bein die Kurve L und für das rechte Bein die Kurve R (strichliert) gemessen wird. Die Kurve R für das rechte Bein wurde um 180° verschoben, um die beiden Maxima besser vergleichen zu können. Für den Patienten in der Rehabilitation bzw. für den Sportler im Training ist nun anzustreben, beide Kurven möglichst gleichmäßig zu gestalten. Dabei kann die Aufzeichnung am Monitor als Feedback verwendet werden. Im dargestellten Fall sollte versucht werden, die Kurve R durch ein Ändern des Drehverhaltens derart zu beeinflussen, dass ein Drehmomenteinbruch im Bereich der Drehmomentspitze verhindert und beispielsweise ein Ergebnis gemäß Kurve V (punktiert) erreicht wird.3 shows the curve of the torque as a function of the crank angle, where, for example, the curve L for the left leg and the curve for the right leg Curve R (dashed) is measured. The curve R for the right leg was around Shifted 180 ° to better compare the two maxima. For the Patients in rehabilitation or for athletes in training should now be aimed at to make both curves as even as possible. The recording can can be used as feedback on the monitor. In the case shown should try to change the curve R by changing the turning behavior to influence that a torque drop in the area of the torque peak prevented and, for example, a result according to curve V (dotted) achieved becomes.
Claims (9)
- An ergometer, preferably a bicycle ergometer, comprising a pedal arrangement (2) which is mounted in a frame (1) and an adjustable braking device (5), with the two pedals (7, 8) of the pedal arrangement (2) being mounted independently of each other, excluding the transmission of force from one pedal to another, characterized in that an auxiliary motor (12) can be hooked up to each of the two pedals (7, 8), with the output of the motor (12) being controllable.
- An ergometer as claimed in claim 1, characterized in that each of the two auxiliary motors (12) can comprise an anti-spasm control unit which can be activated automatically during the occurrence of a sudden change in resistance.
- An ergometer as claimed in claim 1 or 2, characterized in that a separate braking device (5) is provided for each pedal (7, 8) whose braking force can be controlled independent from each other.
- An ergometer as claimed in claim 3, characterized in that the braking devices (5) act on disk flywheels (4) of the ergometer.
- An ergometer as claimed in one of the claims 1 to 4, characterized in that a torque sensor (9) and/or a tachometer generator (11) are situated on the crank axle (7', 8') of each pedal (7, 8), which sensor or generator is in connection with a computer unit (6) plus display device, preferably a monitor (10).
- An ergometer as claimed in one of the claims 1 to 5, characterized in that the two pedals (7, 8) are arranged as crank handles.
- An ergometer as claimed in one of the claims 1 to 6, characterized in that one of the pedals (7) comprises a crank axle (7') with a tubular projection (13) and the other pedal (8) a crank axle (8') with a cylindrical projection (14), with the cylindrical projection (14) being rotatably held in the tubular projection (13).
- An ergometer as claimed in claim 7, characterized in that the two projections (13, 14) are provided with mutually flush radial bores (13', 14'), with the pedal arrangement (2) being fixable in a 180° geometry by inserting a fixing screw into the radial bores.
- An ergometer as claimed in one of the claims 5 to 8, characterized in that the torque sensor (9) consists of a torsion ring (23) which is fastened to the crank axles (7', 8') and co-operates with a data sensor (24) which is preferably fixed to the chain guard (22).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0046200U AT4425U1 (en) | 2000-06-27 | 2000-06-27 | ERGOMETER |
| AT4622000 | 2000-06-27 | ||
| PCT/AT2001/000198 WO2002000305A1 (en) | 2000-06-27 | 2001-06-21 | Ergometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1294452A1 EP1294452A1 (en) | 2003-03-26 |
| EP1294452B1 true EP1294452B1 (en) | 2004-05-06 |
Family
ID=3491254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01942864A Expired - Lifetime EP1294452B1 (en) | 2000-06-27 | 2001-06-21 | Ergometer |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20050107221A1 (en) |
| EP (1) | EP1294452B1 (en) |
| AT (1) | AT4425U1 (en) |
| AU (1) | AU2001265662A1 (en) |
| WO (1) | WO2002000305A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008028377A1 (en) | 2008-06-13 | 2009-12-17 | Schaeffler Kg | Tread resistance adjusting device for bicycle ergometer, has control device designed such that braking force acting on flywheel with rotation of drive unit is changeable, so that different tread resistances are adjustable for pedals |
| DE102008033710A1 (en) | 2008-07-18 | 2010-01-21 | Schaeffler Kg | Ergometer, e.g. for sports training, has crank mechanism operated by operator and sets in operation fly wheel against effect of brake unit, and control device is provided for braking unit |
| EP4159609A3 (en) * | 2017-06-30 | 2023-07-19 | Marquette University | Motor assisted split-crank pedaling device |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20210349U1 (en) | 2002-07-03 | 2002-10-02 | Medica-Medizintechnik GmbH, 88454 Hochdorf | Indicator for therapeutic movement trainers |
| GB0409089D0 (en) * | 2004-04-24 | 2004-05-26 | Butterworth Paul | Multiple axis upper & lower body exercise system |
| KR101081703B1 (en) * | 2005-10-06 | 2011-11-09 | 전북대학교산학협력단 | Bike type exercising apparatus |
| US7418862B2 (en) * | 2005-12-09 | 2008-09-02 | Wisconsin Alumni Research Foundation | Electromechanical force-magnitude, force-angle sensor |
| US7862476B2 (en) * | 2005-12-22 | 2011-01-04 | Scott B. Radow | Exercise device |
| US7976434B2 (en) * | 2005-12-22 | 2011-07-12 | Scott B. Radow | Exercise device |
| US20100093494A1 (en) * | 2006-10-30 | 2010-04-15 | Robert Masterton Smith | Method and apparatus for measuring and monitoring torque exerted during pedalling of a bicycle or the like equipment |
| WO2009003170A1 (en) * | 2007-06-27 | 2008-12-31 | Radow Scott B | Stationary exercise equipment |
| US8011242B2 (en) * | 2008-07-29 | 2011-09-06 | Garmin Switzerland Gmbh | System and device for measuring and analyzing forces applied by a cyclist on a pedal of a bicycle |
| US9044630B1 (en) | 2011-05-16 | 2015-06-02 | David L. Lampert | Range of motion machine and method and adjustable crank |
| AT513864B1 (en) * | 2013-01-21 | 2015-04-15 | Ait Austrian Inst Technology | Training device, in particular bicycle ergometer |
| US11154750B2 (en) * | 2017-06-30 | 2021-10-26 | Marquette University | Motor assisted split-crank pedaling device |
| US10722414B2 (en) * | 2017-11-01 | 2020-07-28 | Alex Bush | Exercising device |
| US11364419B2 (en) | 2019-02-21 | 2022-06-21 | Scott B. Radow | Exercise equipment with music synchronization |
| CN111097134B (en) * | 2019-12-24 | 2021-01-29 | 秦皇岛市第三医院 | Medical instrument for limb recovery training according to different limb stress of patient |
| CN113318375B (en) * | 2021-06-09 | 2022-03-25 | 嘉兴博集医疗科技有限公司 | Orthopedics rehabilitation training auxiliary device and auxiliary system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3693614A (en) * | 1971-05-28 | 1972-09-26 | Kenneth A Schon | Exercise apparatus and method for paralytic patients |
| US3735754A (en) * | 1971-06-11 | 1973-05-29 | J Reed | Therapeutic exercising apparatus |
| US4463764A (en) * | 1981-09-29 | 1984-08-07 | Medical Graphics Corporation | Cardiopulmonary exercise system |
| US4550906A (en) * | 1983-02-16 | 1985-11-05 | Darryl Im | Bicycle type exercise apparatus with indexing pedal cranks |
| US5496238A (en) * | 1992-11-19 | 1996-03-05 | Taylor; Douglas B. | Physical conditioning apparatus |
| DE4406286A1 (en) * | 1994-02-26 | 1995-08-31 | Stegmann Heiner Dr Med | Method for determining the individual anaerobic threshold of a person |
| US6234939B1 (en) * | 1996-01-25 | 2001-05-22 | Thomas V. Moser | Unipedal cycle apparatus |
| US5868649A (en) * | 1996-02-09 | 1999-02-09 | Hydrosplash Enterprises, Inc. | Aquatic exercise device |
| DE19819957A1 (en) * | 1997-05-07 | 1999-03-25 | Rainer Herold | Bicycle trainer for single-leg training |
| SE512298C2 (en) * | 1998-05-29 | 2000-02-28 | Dieter Herbert | Bicycle pedal |
-
2000
- 2000-06-27 AT AT0046200U patent/AT4425U1/en not_active IP Right Cessation
-
2001
- 2001-06-21 WO PCT/AT2001/000198 patent/WO2002000305A1/en active IP Right Grant
- 2001-06-21 EP EP01942864A patent/EP1294452B1/en not_active Expired - Lifetime
- 2001-06-21 US US10/312,514 patent/US20050107221A1/en not_active Abandoned
- 2001-06-21 AU AU2001265662A patent/AU2001265662A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008028377A1 (en) | 2008-06-13 | 2009-12-17 | Schaeffler Kg | Tread resistance adjusting device for bicycle ergometer, has control device designed such that braking force acting on flywheel with rotation of drive unit is changeable, so that different tread resistances are adjustable for pedals |
| DE102008033710A1 (en) | 2008-07-18 | 2010-01-21 | Schaeffler Kg | Ergometer, e.g. for sports training, has crank mechanism operated by operator and sets in operation fly wheel against effect of brake unit, and control device is provided for braking unit |
| EP4159609A3 (en) * | 2017-06-30 | 2023-07-19 | Marquette University | Motor assisted split-crank pedaling device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002000305A1 (en) | 2002-01-03 |
| US20050107221A1 (en) | 2005-05-19 |
| AU2001265662A1 (en) | 2002-01-08 |
| EP1294452A1 (en) | 2003-03-26 |
| AT4425U1 (en) | 2001-07-25 |
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