DE29508072U1 - Pedal crank with adjustable crank radius for bicycle ergometers - Google Patents
Pedal crank with adjustable crank radius for bicycle ergometersInfo
- Publication number
- DE29508072U1 DE29508072U1 DE29508072U DE29508072U DE29508072U1 DE 29508072 U1 DE29508072 U1 DE 29508072U1 DE 29508072 U DE29508072 U DE 29508072U DE 29508072 U DE29508072 U DE 29508072U DE 29508072 U1 DE29508072 U1 DE 29508072U1
- Authority
- DE
- Germany
- Prior art keywords
- pedal
- pedal crank
- crank
- adapter
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000003127 knee Anatomy 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
- B62M3/02—Construction of cranks operated by hand or foot of adjustable length
-
- 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
- A63B2022/0623—Cranks of adjustable length
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Transmission Devices (AREA)
Description
Pedalkurbel mit verstellbarem Kurbelradius für Fahrraderqomet er Pedal crank with adjustable crank radius for bicycle torque meter
Die Erfindung betrifft eine Pedalkurbel mit verstellbarem Kurbelradius für Fahrradergometer.The invention relates to a pedal crank with adjustable crank radius for bicycle ergometers.
Bei der Behandlung von Patienten mit begrenztem Beugevermögen am Knie und an der Hüfte ist es oft nicht möglich Fahradergometer zu verwenden, deren Pedalkurbeln einen festen, für das Beugevermögen zu großen Kurbelradius aufweist. Hier empfiehlt sich der Einsatz kürzerer oder verstellbarer Pedalkurbeln, die kleinere Beugewinkel am Bein des Patienten zulassen.When treating patients with limited knee and hip flexion, it is often not possible to use bicycle ergometers whose pedal cranks have a fixed crank radius that is too large for the flexion ability. In this case, it is recommended to use shorter or adjustable pedal cranks that allow smaller flexion angles on the patient's leg.
Bei herkömmlichen Pedalkurbeln mit verstellbarem Kurbelradius für Fahrradergometer ist das Pedal an einem Klemmbock befestigt, der die Kurbel umfaßt und an dieser verschiebbar geklemmt werden kann. Nach Lösen dieser Klemmung kann der Kurbelradius durch verschieben des Klemmblockes an der Pedalkurbel verstellt werden. Das Pedal kann auf der Kurbel in Richtung zur Tretachse verschoben werden. Die Kurbel ist fest mit der Tretachse verbunden.In conventional pedal cranks with an adjustable crank radius for bicycle ergometers, the pedal is attached to a clamping block that encloses the crank and can be clamped to it in a movable manner. After loosening this clamp, the crank radius can be adjusted by moving the clamping block on the pedal crank. The pedal can be moved on the crank in the direction of the pedal axis. The crank is firmly connected to the pedal axis.
Durch den zusätzlichen erforderlichen Klemmblock entsteht ein vergrößerter Pedalabstand. Der die Kurbel umfassende Klemmbock darf nicht mit dem Ergometergehäuse kollidieren. Durch die platzsparende Bauweise des Klemmblockes besitzt dieser meist nicht die ausreichende Stabilität, eine rechtwinklige Anordnung von Pedal und Kurbel dauerhaft zu gewährleisten. Nach häufigen Verstellungen verformt sich der zum Klemmen elastisch nachgebende Klemmblock, so daß das Pedal schief auf der Kurbel sitzt und eine unrunde Tretbewegung zur Folge hat. Auch die Klemmschraube muß der Bauweise entsprechend klein ausgeführt sein, was die Bedienung der Verstellung erschwert.The additional clamping block required results in a larger pedal distance. The clamping block that surrounds the crank must not collide with the ergometer housing. Due to the space-saving design of the clamping block, it usually does not have sufficient stability to permanently ensure a right-angled arrangement of pedal and crank. After frequent adjustments, the clamping block, which is elastically flexible for clamping, deforms so that the pedal sits crookedly on the crank and results in an uneven pedaling movement. The clamping screw must also be small in accordance with the design, which makes it difficult to operate the adjustment.
Der Erfindung liegt die Aufgabe zugrunde eine Pedalkurbel mit verstellbarem Kurbelradius für Fahrradergometer zu schaffen, die trotz des geringen zur Vefügung stehenden Platzes im Kurbelradius verstellbar ist und eine stabile, auf Dauer lotrechte Anordnung gewährleistet und einfach zu verstellen ist.The invention is based on the object of creating a pedal crank with an adjustable crank radius for bicycle ergometers, which despite the limited space available in the crank radius is adjustable and ensures a stable, permanently vertical arrangement and is easy to adjust.
Die Aufgabe wird durch eine Pedalkurbel mit verstellbarem Kurbelradius für Fahrradergometer nach Anspruch 1 gelöst.The object is achieved by a pedal crank with adjustable crank radius for bicycle ergometers according to claim 1.
Durch das Vorsehen mehrerer Durchgänge an der Pedalkurbel für eine Spannschraube zur Befestigung der Pedalkurbel an der Tretachse kann die Pedalkurbel mit unterschiedlichen Radien, d.h. unterschiedlichen Abständen zwischen dem Pedal und der Tretachse an der Tretachse befestigt werden. Somit wird durch das Befestigen an der Tretachse auf einfache Art und Weise sowohl die Funktion der Befestigung der Pedalkurbel als auch die Verstellfunktion realisiert.By providing several passages on the pedal crank for a tension screw for fastening the pedal crank to the pedal axle, the pedal crank can be fastened to the pedal axle with different radii, i.e. different distances between the pedal and the pedal axle. Thus, by fastening it to the pedal axle, both the function of fastening the pedal crank and the adjustment function are realized in a simple manner.
Bei der Aus führungs form nach Anspruch 2 mit einem Adapter zwischen der Tretachse und der Pedalkurbel, wobei die Durchgänge für die Spannschraube mit einem Langloch zusammengefaßt sind, läßt sich die Pedalkurbel stufenlos oder in zumindest sehr kleinen Stufen verstellen, wobei der Adapter in herkömmlicher Weise auf die Tretachse geklemmt ist, die üblicherweise als ein nach außen sich verjüngender konischer Vierkant ausgebildet ist.In the embodiment according to claim 2 with an adapter between the pedal axle and the pedal crank, whereby the passages for the clamping screw are combined with an elongated hole, the pedal crank can be adjusted continuously or at least in very small steps, whereby the adapter is clamped in a conventional manner onto the pedal axle, which is usually designed as a conical square that tapers outwards.
Die Pedalkurbel ist klemmfrei aber dennoch drehfest am Adapter befestigt, so daß die Pedalkurbel alleine durch Lösen der Spannschraube vom Adapter gelöst, radial verstellt und wieder durch Anziehen der Spannschraube befestigt werden kann.The pedal crank is attached to the adapter in a clamp-free but still rotationally secure manner, so that the pedal crank can be removed from the adapter simply by loosening the clamping screw, adjusted radially and then reattached by tightening the clamping screw.
Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.Further advantageous embodiments are specified in the subclaims.
Anhand der Zeichnungen wird die Erfindung beispielhaft näher beschrieben. Es zeigen:The invention is described in more detail by way of example with reference to the drawings. They show:
Fig. 1 eine Draufsicht auf die erfindungsgemäße Pedalkurbel;Fig. 1 is a plan view of the pedal crank according to the invention;
Fig. 2 einen Querschnitt durch die in Fig. 1 gezeigte Pedalkurbel längs der Linie I-I;
Fig. 3 eine Draufsicht auf einen Adapter für die in Fig. 1 gezeigte Pedalkurbel·;
Fig. 4 eine Seitenansicht der Breitseite des in Fig. 3Fig. 2 is a cross-section through the pedal crank shown in Fig. 1 along the line II;
Fig. 3 is a plan view of an adapter for the pedal crank shown in Fig. 1;
Fig. 4 is a side view of the broad side of the in Fig. 3
gezeigten Adapters;
Fig. 5 eine Seitenansicht der Schmalseite des in Fig. 4shown adapter;
Fig. 5 is a side view of the narrow side of the in Fig. 4
gezeigten Adapters;adapter shown;
Fig. 6 einen Querschnitt durch den in Fig. 3 gezeigten Adapter längs der Linie II-II im Bereich einerFig. 6 is a cross-section through the adapter shown in Fig. 3 along the line II-II in the area of a
Durchgangsbohrung;
Fig. 7 und 8 jeweils eine an einer Tretachse montiertethrough hole;
Fig. 7 and 8 each show a pedal axle mounted
Pedalkurbel mit einem Pedal;Pedal crank with one pedal;
Fig. 9 einen Schnitt durch den Verbindungsbereich zwischen der Pedalkurbel und der Tretachse längs der Linie HiFig. 9 a section through the connection area between the pedal crank and the pedal axis along the line Hi
ll I in Fig. 7;ll I in Fig. 7;
Fig. 10 eine an einer Tretachse montierte Pedalkurbel mit einem Pedal, wobei die Pedalkurbel mit einem
Rastprofil versehen ist.
20Fig. 10 a pedal crank mounted on a pedal axle with a pedal, wherein the pedal crank is provided with a locking profile.
20
Das in den Zeichnungen dargestellte Ausführungsbeispiel der erfindungsgemäßen Pedalkurbel für Fahradergometer ist eine langgestreckte, stabförmig Pedalkurbel 1. Die Pedalkurbel 1 ist im Querschnitt etwa rechteckig mit zwei Schmalseitenflächen 2 und zwei Breitseitenflächen 3a, 3b ausgebildet ,.(Fig. 2). An einem Ende, dem Pedalende 4, der Pedalkurbel 1 ist eine Gewindebohrung 5 zur Aufnahme eines Pedals 6 eingebracht, wobei die Gewindebohrung 5 die Pedalkurbel 1 quermittig an den Breitseitenflächen 3a, 3b durchsetzt. Die Gewindebohrung 5 weist für den Einsatz auf der einen oder der anderen Seite des Fahrradergometers ein Linksbzw. Rechtsgewinde (G9/16") auf. Typische beispielhafte Abmessungen der Pedalkurbel 1 sind:The embodiment of the pedal crank according to the invention for bicycle ergometers shown in the drawings is an elongated, rod-shaped pedal crank 1. The pedal crank 1 is approximately rectangular in cross-section with two narrow side surfaces 2 and two wide side surfaces 3a, 3b (Fig. 2). At one end, the pedal end 4, of the pedal crank 1, a threaded hole 5 is made to accommodate a pedal 6, whereby the threaded hole 5 passes through the pedal crank 1 transversely in the middle at the wide side surfaces 3a, 3b. The threaded hole 5 has a left-hand or right-hand thread (G9/16") for use on one or the other side of the bicycle ergometer. Typical example dimensions of the pedal crank 1 are:
Der übrige Bereich neben der Gewindebohrung 5 der Pedalkurbel 1 ist in Längsrichtung quermittig an den Breitseitenflächen 3a, 3b von einem Langloch 7 durchsetzt, das bspw. eine Breite von etwa 8,5 mm aufweist. An einer der Breitseitenflächen, der äußeren Breitseitenfläche 3a, ist eine tiefe Nut 8 quermittig um das Langloch eingebracht, die breiter als das Langloch 7 ist und bspw. eine Breite von 20 mm und eine Tiefe von 7 mm aufweist. An der gegenüberliegenden Breitseitenfläche 3b ist eine flache Führungsnut 9 eingearbeitet, mit bspw. derselben Breite wie die Nut 8 und mit einer Tiefe von etwa 3 mm. Die Führungsnut 9 erstreckt sich vorzugsweise über die gesamte Länge der Pedalkurbel 1. Durch das Ausbilden des schmalen Langloches 7 und der breiten Nuten 8, 9, die jeweils quermittig angeordnet sind, weist die Pedalkurbel 1 im Bereich des Langloches 7 zwei schmale nach innen zeigende Stege 10 auf.The remaining area next to the threaded hole 5 of the pedal crank 1 is penetrated in the longitudinal direction transversely in the middle on the broad side surfaces 3a, 3b by an elongated hole 7, which has a width of about 8.5 mm, for example. On one of the broad side surfaces, the outer broad side surface 3a, a deep groove 8 is made transversely in the middle around the elongated hole, which is wider than the elongated hole 7 and has a width of 20 mm and a depth of 7 mm, for example. A flat guide groove 9 is made on the opposite broad side surface 3b, with the same width as the groove 8, for example, and with a depth of about 3 mm. The guide groove 9 preferably extends over the entire length of the pedal crank 1. By forming the narrow elongated hole 7 and the wide grooves 8, 9, which are each arranged transversely in the middle, the pedal crank 1 has two narrow inward-pointing webs 10 in the area of the elongated hole 7.
Die Pedalkurbel 1 wird mit einem Adapter 11 {Fig. 3 bis 6) an einer Tretachse 12 des Fahradergometers befestigt. Der Adapter 11 hat in der Draufsicht (Fig. 3) eine etwa rechteckige Form mit einer zentralen durchgehenden Bohrung 13, die sich von einer oberen bzw. äußeren Seitenfläche 14 zu einer unteren bzw. inneren Seitenfläche 15 erstreckt (Fig. 6) . Die Bohrung 13 ist im Bereich der inneren Seitenfläche 15 mit einem sich zur Seitenfläche 15 konisch erweiternden rechteckigen bzw. quadratischen Querschnitt ausgebildet, so daß der Adapter 11 auf die üblicherweise als sich verjüngender konischer Vierkant ausgebildete Tretachse 12 formschlüssig aufgesteckt und festgeklemmt werden kann. Im Bereich der äußeren Seitenfläche 14 weist die Bohrung 13 ein kurzes Innegewinde (bspw. M12) auf, in das zum Lösen des auf die 0 Tretachse 12 geklemmten Adapters 11 eine Schraube eingeschraubt werden kann, die sich auf der Stirnfläche der Tretachse abstützt und den Adapter 11 von der Tretachse 12 zieht.The pedal crank 1 is attached to a pedal axle 12 of the bicycle ergometer using an adapter 11 (Fig. 3 to 6). The adapter 11 has an approximately rectangular shape in plan view (Fig. 3) with a central through-hole 13 that extends from an upper or outer side surface 14 to a lower or inner side surface 15 (Fig. 6). The hole 13 is designed in the area of the inner side surface 15 with a rectangular or square cross-section that widens conically towards the side surface 15, so that the adapter 11 can be positively attached and clamped onto the pedal axle 12, which is usually designed as a tapered conical square. In the area of the outer side surface 14, the bore 13 has a short internal thread (e.g. M12) into which a screw can be screwed in order to loosen the adapter 11 clamped onto the 0 pedal axle 12. This screw rests on the front surface of the pedal axle and pulls the adapter 11 off the pedal axle 12.
An der äußeren Seitenfläche 14 ist ein flacher Führungssteg 16 ausgebildet, der formschlüssig in die Führungsnut 9 der Pedalkurbel 1 paßt. Der Führungssteg 16 ist quermittig in Längsrichtung verlaufend auf der rechteckigen Seitenfläche 14 desOn the outer side surface 14, a flat guide web 16 is formed, which fits positively into the guide groove 9 of the pedal crank 1. The guide web 16 is transversely centered in the longitudinal direction on the rectangular side surface 14 of the
Adapters 11 angeordnet. Der Führungssteg 16 weist bspw. eine Höhe von 3 mm, eine Breite von 19,8 ram auf und eine Länge von 40 mm auf.Adapter 11 is arranged. The guide bar 16 has, for example, a height of 3 mm, a width of 19.8 ram and a length of 40 mm.
An das Fahradergometer wird die Pedalkurbel 1 befestigt, indem der Adapter 11 auf die Tretachse 12 gesteckt wird und die Pedalkurbel 1 mit der Führungsnut 9 auf dem Führungssteg 16 des Adapters 11 angesetzt wird. Diese Einheit aus Adapter 11 und Pedalkurbel 1 wird dann mittels einer Spannschraube 17 (bspw.The pedal crank 1 is attached to the bicycle ergometer by placing the adapter 11 on the pedal axle 12 and placing the pedal crank 1 with the guide groove 9 on the guide bar 16 of the adapter 11. This unit consisting of adapter 11 and pedal crank 1 is then secured using a clamping screw 17 (e.g.
M8xl - Feingewinde) an einer axialen Gewindebohrung 18 der Tretachse 12 befestigt, wobei die Spannschraube 17 einen Schraubenkopf 17a aufweist, der über eine Beilagscheibe 19 an den Stegen 10 der Pedalkurbel 1 anliegt. Der Führungssteg 16 erstreckt sich bspw. über eine beträchtliche Länge von etwa 40 ram, so daß er trotz seiner geringen Stärke von bspw. etwa 3 mm eine drehfeste Eingriffnähme in der Führungsnut 9 bildet, die die beim Betätigen des Ergometers auftretenden Drehbelastungen aufnehmen kann. Die Spannschraube 17 muß somit nur Belastungen in Axialrichtung der Tretachse 12 aufnehmen und kann somit mit 0 geringem Drehmoment angezogen werden, so daß sie wieder leicht gelöst werden kann.M8xl - fine thread) to an axial threaded hole 18 of the pedal axle 12, whereby the clamping screw 17 has a screw head 17a which rests on the webs 10 of the pedal crank 1 via a washer 19. The guide web 16 extends over a considerable length of about 40 ram, so that despite its low thickness of about 3 mm, it forms a rotationally fixed engagement in the guide groove 9, which can absorb the rotational loads that occur when the ergometer is operated. The clamping screw 17 therefore only has to absorb loads in the axial direction of the pedal axle 12 and can therefore be tightened with a low torque, so that it can be easily loosened again.
Der Schraubenkopf 17a befindet sich in der Nut 8 der Pedalkurbel 1, so daß sie versenkt und dennoch mit einem herkömmlichen Spannschlüssel 20 zum Lösen bzw. Anziehen der Spannschraube 18 leicht zugänglich ist.The screw head 17a is located in the groove 8 of the pedal crank 1 so that it is countersunk and yet easily accessible with a conventional spanner 20 for loosening or tightening the clamping screw 18.
Bei einer erstmaligen Befestigung der Pedalkurbel 1 und des Adapters 11 wird der Adapter 11 mit seiner konischen Bohrung 13 an der konischen Tretachse 12 festgeklemmt, so daß bei erneutem Lösen der Spannschraube 17 der Adapter 11 weiterhin fest auf der Tretachse 12 sitzt und sich nur die Pedalkurbel 1 von dem Adapter 11 löst. Die Pedalkurbel 1 kann mit ihrer Führungsnut 9 entlang dem Führungssteg 16 beliebig verschoben und wieder durch Anziehen der Spannschraube 17 befestigt werden, so daß der den Kurbelradius R darstellende Abstand zwischen dem Pedal 6 bzw. einer Pedalachse 6a und der Tretachse 12, beliebig in der LängeWhen the pedal crank 1 and the adapter 11 are attached for the first time, the adapter 11 is clamped with its conical hole 13 on the conical pedal axle 12, so that when the clamping screw 17 is loosened again, the adapter 11 continues to sit firmly on the pedal axle 12 and only the pedal crank 1 is released from the adapter 11. The pedal crank 1 can be moved as desired with its guide groove 9 along the guide web 16 and fastened again by tightening the clamping screw 17, so that the distance representing the crank radius R between the pedal 6 or a pedal axle 6a and the pedal axle 12 can be adjusted as desired in length.
verstellt werden kann. Das Verstellen der Pedalkurbel 1 kann beliebig oft wiederholt werden, denn die drehfeste Ineingriffnahme
zwischen der Pedalkurbel 1 und dem Adapter 11 unterliegt keinem Verschleiß.
5The adjustment of the pedal crank 1 can be repeated as often as desired, because the rotationally fixed engagement between the pedal crank 1 and the adapter 11 is not subject to wear.
5
Vorzugsweise ist die Pedalkurbel 1 an einer ihrer Schmalseitenfläche 2 mit einer Skala 21 versehen, die eine Bestimmung des Kurbelradius R ermöglicht.Preferably, the pedal crank 1 is provided on one of its narrow side surfaces 2 with a scale 21 which enables the crank radius R to be determined.
Ein weiteres Ausführungbeispiel der erfindungsgemäßen Pedalkurbel 1 (Fig. 10) weist im Bereich der Führungsnut 9 ein Rastprofil 22 auf, das mit einem korrespondierendem Rastprofil 23 am Führungssteg 16 zusammenwirkt, so daß der Kurbelradius in kleinen Stufen verstellbar ist. Die Rastprofile bewirken eine weitere Erhöhung des Formschlusses zwischen der Führungsnut 9 und dem Führungssteg 16 und erleichtern zudem durch die gerastete Längenverstellung die exakte Abstimmung der Kurbelradien R zweier Pedalkurbeln 1 eines Ergometers. Die Rastprofile können als Sägezahnprofile ausgebildet sein.Another embodiment of the pedal crank 1 according to the invention (Fig. 10) has a locking profile 22 in the area of the guide groove 9, which interacts with a corresponding locking profile 23 on the guide bar 16, so that the crank radius can be adjusted in small steps. The locking profiles further increase the positive connection between the guide groove 9 and the guide bar 16 and also facilitate the exact adjustment of the crank radii R of two pedal cranks 1 of an ergometer due to the locking length adjustment. The locking profiles can be designed as sawtooth profiles.
Die erfindungsgemäße Pedlakurbel 1 kann auch bei Fahrrädern, insbesondere Leihfahrrädern, deren Benutzer häufig wechseln, oder bei Fahrradhometrainern und dergleichen verwendet werden.The pedal crank 1 according to the invention can also be used on bicycles, in particular rental bicycles whose users change frequently, or on bicycle exercise bikes and the like.
Claims (6)
dadurch gekennzeichnet,2. Pedal crank according to claim 1,
characterized,
dadurch gekennzeichnet,3. Pedal crank according to claim 2,
characterized,
dadurch gekennzeichnet,4. Pedal crank according to claim 2 or 3,
characterized,
10that the adapter (11) has a through bore (13) which extends from an outer side surface (14) to an inner side surface (15), wherein the bore (13) is formed with a conically widening cross-section in the region of the inner side surface (15) and with an internal thread in the region of the outer side surface (14).
10
dadurch gekennzeichnet,5. Pedal crank according to one of claims 2 to 4,
characterized,
dadurch gekennzeichnet,6. Pedal crank according to one of claims 2 to 5,
characterized,
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29508072U DE29508072U1 (en) | 1995-05-16 | 1995-05-16 | Pedal crank with adjustable crank radius for bicycle ergometers |
| DE19619820A DE19619820C2 (en) | 1995-05-16 | 1996-05-16 | Pedal crank with adjustable crank radius for bicycle ergometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29508072U DE29508072U1 (en) | 1995-05-16 | 1995-05-16 | Pedal crank with adjustable crank radius for bicycle ergometers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29508072U1 true DE29508072U1 (en) | 1995-08-31 |
Family
ID=8008092
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29508072U Expired - Lifetime DE29508072U1 (en) | 1995-05-16 | 1995-05-16 | Pedal crank with adjustable crank radius for bicycle ergometers |
| DE19619820A Expired - Fee Related DE19619820C2 (en) | 1995-05-16 | 1996-05-16 | Pedal crank with adjustable crank radius for bicycle ergometers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19619820A Expired - Fee Related DE19619820C2 (en) | 1995-05-16 | 1996-05-16 | Pedal crank with adjustable crank radius for bicycle ergometers |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE29508072U1 (en) |
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| DE29620008U1 (en) * | 1996-11-18 | 1997-02-06 | SM Sondermaschinenbau GmbH, 97424 Schweinfurt | Length-adjustable pedal crank for ergometers |
| WO2020143874A1 (en) * | 2019-01-08 | 2020-07-16 | Medica Medizintechnik Gmbh | Exercising apparatus with a limb support, and method for determining the force acting on a limb support of an exercising apparatus |
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| FR2527541B2 (en) * | 1980-07-22 | 1986-05-16 | Lembo Richard | VARIABLE LENGTH CRANKSET |
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- 1996-05-16 DE DE19619820A patent/DE19619820C2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4915374A (en) * | 1989-02-02 | 1990-04-10 | Medmetric Corporation | Recumbent exercise cycle with articulated pedals |
| DE9101489U1 (en) * | 1990-12-19 | 1991-05-02 | Reck, Anton, 7952 Betzenweiler | Crank, especially for training devices |
| DE9317177U1 (en) * | 1993-11-10 | 1994-01-20 | Medica-Medizintechnik GmbH, 88454 Hochdorf | Pedal crank |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29620008U1 (en) * | 1996-11-18 | 1997-02-06 | SM Sondermaschinenbau GmbH, 97424 Schweinfurt | Length-adjustable pedal crank for ergometers |
| WO2020143874A1 (en) * | 2019-01-08 | 2020-07-16 | Medica Medizintechnik Gmbh | Exercising apparatus with a limb support, and method for determining the force acting on a limb support of an exercising apparatus |
| CN113613735A (en) * | 2019-01-08 | 2021-11-05 | 美迪卡医学有限公司 | Training device with a limb support and method for determining a force acting on a limb support of a training device |
| CN113613735B (en) * | 2019-01-08 | 2022-07-19 | 美迪卡医学有限公司 | Training device with limb support and method for determining the force on said support |
| US12161909B2 (en) | 2019-01-08 | 2024-12-10 | Medica Medizintechnik Gmbh | Exercising apparatus with a limb support, and method for determining the force acting on a limb support of an exercising apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19619820A1 (en) | 1996-12-05 |
| DE19619820C2 (en) | 2001-01-25 |
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