EP2859922B1 - Progressives Widerstandssystem für eine Übungsvorrichtung - Google Patents
Progressives Widerstandssystem für eine Übungsvorrichtung Download PDFInfo
- Publication number
- EP2859922B1 EP2859922B1 EP13187846.4A EP13187846A EP2859922B1 EP 2859922 B1 EP2859922 B1 EP 2859922B1 EP 13187846 A EP13187846 A EP 13187846A EP 2859922 B1 EP2859922 B1 EP 2859922B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- axle
- resistance device
- cylinder
- magnet carrier
- progressive resistance
- 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.)
- Active
Links
- 230000000750 progressive effect Effects 0.000 title claims description 45
- 230000009021 linear effect Effects 0.000 description 12
- 230000008261 resistance mechanism Effects 0.000 description 10
- 230000004907 flux Effects 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
-
- 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
- A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
- A63B21/0051—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using eddy currents induced in moved elements, e.g. by permanent magnets
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
- A63B2069/167—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles on rollers without further support
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
- A63B2069/168—Force transfer through the rim of the wheel
Definitions
- a bicycle roller is a dynamometer for bicycles that is powered by the bicycle rider.
- a bicycle roller is traditionally comprised of three rotatable cylinders positioned so that the rear wheel of the bicycle rides on two closely-spaced cylinders, and the front wheel of the bicycle rides on a third cylinder.
- the cylinder under the front wheel is coupled to one of the cylinders under the rear wheel by an elastic band such that the front cylinder is forced to rotate at approximately the same speed as the rear two cylinders. This allows the rider to control the bicycle, with steering enabled due to the rotation of the front wheel.
- the amount of power, or wattage, that the bicyclist is required to exert to ride at a given speed on a bicycle roller was determined by the amount of rolling resistance resulting from tire distress as the tire rolls over each of the cylinders plus the wattage required to drive any external devices which exert resistance on one or more of the cylinders.
- Rolling resistance is predominantly a function of the cylinder diameter, tire pressure, and bicyclist weight. Relying on these factors alone provides a linear relationship of resistance versus speed.
- Simple devices that add a predictable amount of resistance such as the magnetic eddy-current device of U.S. Patent 6,857,992 can be added externally to the cylinders, but these are undesirable since they provide a linear speed-to-resistance relationship.
- Prior art bicycle rollers have a linear relationship of speed versus resistance. This solution is unsatisfactory; when beginning to pedal the bike from rest on rollers, low resistance is desired to allow the wheels to accelerate quickly enough to enable sufficient steering dynamics to keep the bicycle stable on the rollers, however, to obtain a meaningful training session, a high amount of resistance is desired when pedaling at a rate suitable to achieve cardiovascular exercise benefit.
- Stationary trainers that use devices external to the rollers, such as fluid resistance, friction, air-moving technologies or variable magnetic resistance devices (see U.S. Patent 7,011,607 , are designed to resemble realistic bicycle riding conditions. Each of these devices is external to the roller. Other than adding this type of device to a bicycle roller, and driving it through a power-transmission device, or through a complicated mechanical coupling to one of the driven cylinders, no attempt has been made to fully integrate progressive resistance technology within the drum of a bicycle roller so that external devices are not necessary. As such, an improved bicycle roller is desired.
- the progressive resistance device is a conductive cylinder, or drum, having an outer wall defining an internal chamber.
- One or more magnets is carried on a magnet carrier and housed within the internal chamber and in proximity to the wall. Eddy currents produced in the conductive cylinder as the cylinder spins alter the magnet's proximity to the wall by forcing the magnet carrier to move in an eccentric orientation as relates to the axis of rotation of the cylinder.
- a torsional spring opposes the force created by the eddy current and causes the system to achieve a state of equilibrium force balance.
- the progressive resistance device described herein is unique in that it allows the user to select progressive resistance or linear resistance, as desired. The ability to make this selection is important because a user training on rollers on any given day may prefer high wattage or low wattage at high speed.
- the progressive resistance device is removable from the frame and is reversible, to allow the user to select linear or progressive resistance.
- a trainer having a single progressive resistance device described herein may be adequate.
- a bicycle roller comprises three cylinders, typically identical, the use of one, two, or three progressive resistance devices described herein may be used in the place of the roller's cylinders to achieve differing levels of resistance.
- An additional embodiment of this technology to achieve a higher level of resistance on a single cylinder is to include stationary magnets on the outer side of the progressive resistance device placed and oriented in such a way that: a) when the progressive resistance device is at rest, the poles of the moveable magnets inside the cylinder oppose the stationary magnets outside the cylinder, thereby reducing the magnetic flux on the conductive cylinder wall and b) when the progressive resistance device rotates during its normal operation, the moveable magnets inside the cylinder approach stationary magnets on the outside of the cylinder in such a way that the magnets are attracted by appropriate pole alignment, thereby increasing the magnetic flux on the conductive cylinder wall.
- the progressive resistance device described herein is applicable to other stationary trainers, such as those sold for use with bicycles, handcycles and tricycles (see U.S. Patents 7,011,607 , 7,585,258 , 6,964,633 , and 6,042,517 .
- the progressive resistance device described herein is distinguishable from the magnetic resistance system for rollers ( U.S. Patent 6,857,992 , in that the progressive resistance device automatically adjusts resistance level relative to speed, rather than being manually adjustable.
- a roller-type stationary bicycle trainer includes a framework typically consisting of two frame members flanking and adjoined to three cylindrical roller drums. Each frame member consists of two parts: a front frame member that allows for various placements of the front cylindrical roller drum relative to the two rear cylindrical roller drums and a rear frame member which is adjoined to the two rear cylindrical roller drums. In one instance, the frame members are pivitolly attached to each other to enable the trainer to fold for storage. It is understood that this description is only indicative of one type of trainer such as the type designed and produced by SportCrafters, Inc. from Granger, Indiana known as the ZRO aluminum or ZRO PVC. Other configurations of attaching cylindrical rollers with a framework intended to appropriately space the rollers and allow for adjustment of the cylinders for use with various bicycles may be employed.
- a power transmission device which can be a chain, belt or any similar device is typically installed between the front cylinder and the middle cylinder, preferably, an elastic belt.
- the power transmission device is typically carried in a groove formed in the cap of the cylinder.
- the power transmission device is installed between the front cylinder and the rear cylinder.
- the power transmission belt is employed to cause the front cylinder to rotate in the same direction, and at approximately the same rate, as either one of the rear cylinders.
- the driven wheel of the bicycle is placed on the two rear cylinders and the front wheel of the bicycle is placed on the front cylinder.
- the rotation of the rear wheel of the bicycle will cause the rear roller drums to rotate, and through the belt drive, this will also cause the front roller drum to rotate in the same direction. Therefore, the front wheel of the bicycle will also rotate in the same direction and approximate speed as the rear wheel of the bicycle.
- a similar roller-type stationary bicycle trainer which is suitable for use with tricycles and handcycles - where the need for the user to balance on the trainer is not required - includes a framework of two rails adjoining two cylindrical roller drums one of the roller drums is a progressive resistance device. It is further understood that this illustration is indicative of the type of trainer designed and produced by SportCrafters Inc from Granger, Indiana sold under the name Mini-roller.
- the driven wheel of the bicycle is placed between the two roller drums and aligned in such a way that the tire of the bicycle, tricycle, or handcycle remains in contact with the roller drums during use.
- the user pedals the bicycle, tricycle or handcycle so as to rotate the driven wheel which in turn rotates the two cylinders supporting the driven wheel.
- a bicycle 1 having a front wheel 2 and a rear wheel 3 - powered conventionally by means of a crank, chain or other means of applying human power to rear wheel 2 - is positionable on top of a training roller assembly 4.
- the roller assembly 4 includes three rotating cylinders, or drums - a front drum 5, a middle drum 6 and a rear drum 7 - carried by a frame 43.
- the frame 43 is formed having two front frame members 9, two rear frame members 10, two hinges 11, and an elastic drive belt 12.
- One of the front frame members 9 is attached by one of the hinges 11 to one of rear frame member 10, the group forming one side of the frame 43.
- Another of the front frame members 9 is attached by another of the hinges 11 to another of the rear frame member 10, the group forming another side of the frame 43.
- the one and the other sides of the frame 43 are joined together by drums 5, 6, 7 which span therebetween.
- Drums 5, 6, 7 are laterally spaced from one another along the frame 43.
- the middle drum 6 and the rear drum 7 are spaced apart such that the rear wheel 3 contacts both drums and will not tend to roll over the top of the middle drum while under power. This is typically accomplished by using a ratio of the diameter of the rear wheel 3 divided by the centerline distance between the drums roughly equivalent to 2.5. Therefore, as an example, a 27-inch diameter rear wheel would work well with an 11 inch distance between the cylinders.
- the drums 5, 6, 7 are preferably formed from a material which readily dissipates heat, such as aluminum.
- the distance between the front drum 5 and the middle drum 6 is adjusted by anchoring the front drum 5 at any one of a plurality of adjusting holes 14 formed through both of the front frame members 9 such that the front wheel 2 of the bicycle 1 is positioned such that the axle of the front wheel 2 is offset above with the axle of the front drum 5.
- An elastic drive belt 12 spans between the middle drum 6 and the front drum 5 such that the front drum 5 turns in the same direction as the middle and rear drums, enabling the bicycle to be operated using the normal dynamics of steering and balance.
- the elastic drive belt 12 is carried in a groove formed in the cap of the respective drum.
- FIG. 1 This disclosure describes a typical bicycle roller assembly 4 as depicted by FIG. 1 whereby any one, two or three of the drums 5, 6, 7 house a resistance mechanism 42 as depicted in FIG. 2 and FIG. 3 .
- the resistance mechanism 42 in FIG. 2 is represented as the rear drum 7, but it can be positioned in any of the three locations on roller assembly 4.
- the resistance mechanism 42 is used in place of one or more of the drums 5, 6, 7 and is formed having a drum axle 23 which is a straight rod having threaded ends and fasteners 13 suitable for securing the axle 23 to the roller frame 4.
- An eccentric axle 20 encircles the axle 23 and includes a wall having variable thickness.
- the eccentric axle 20 is rotatable around the axle 23.
- a torsional spring 18 includes coils which encircle a portion of the eccentric axle 20, which spring provides an opposing force to the rotation of the eccentric axle 20, as described in greater detail below.
- One or more magnet bearings 19 encircle the eccentric axle 20 and allow a magnet carrier 17 to rotate relative the eccentric axle 20.
- the magnet carrier 17 includes a channel 46 for carrying one or more magnets 15.
- the magnet carrier 17 encircles the eccentric axle 20 with the magnet bearings 19 sandwiched between the eccentric axle 20 and the magnet carrier 17.
- the magnet carrier 17 is preferably formed from a non-magnetic material.
- the eccentric axle 20 provides the centerline of rotation for the magnet bearings 19, said centerline being offset from the centerline of the axle 23 by a predetermined amount.
- the end caps 21 cap the ends of the cylinder 25, with each end cap 21 having a drum bearing 22 installed into the end caps 21 which bearings allow the cylinder 25 to rotate about the axle 23.
- the end caps 21 serve to locate the axle 23 in the center of the cylinder 25.
- a rotational stop 24 may be optionally employed to limit the rotation of the magnet carrier 17 about the eccentric axle 20 to enable a limitation to the minimum or maximum resistance as will be described below.
- the eccentric axle 20 includes one or more axial grooves for accepting an end of the spring 18, thereby holding the end of spring in fixed rotation with the eccentric axle 20.
- the magnet carrier 17 includes an aperture for accepting another end of the spring 18, thereby the spring 18 is able to exert a force between the eccentric axle 20 and the magnet carrier 17 when they are rotated relative one another.
- the magnet carrier 17 only partially encircles magnet bearings 19, having an axial gap formed along the length of the magnet carrier.
- a rib 47 is formed proximate the gap formed in the magnet carrier 17.
- the rib 47 contacts the magnet bearings 19, and ensures contact therebetween; in one embodiment a rib 47 is formed on the magnet carrier 17 on each side of the gap. Similarly, a rib 48 is formed proximate the edge of a gap formed in the channel 46 for purposes of contacting and holding firm a cylindrically-shaped magnet 15.
- the axle 23 mounts the drum (each of drums 5, 6, 7 having a separate axle 23) to the frame 43.
- the cylinder 25 is rotatable about the axle 23. As described in detail below, rotation of the cylinder 25 causes the resistance mechanism 42 to resist rotation of the cylinder. As shown in FIGS. 4 and 5 , when the cylinder 25 is at rest (not rotating), the torsional spring 18 is at its free state and the position of the magnets 15 is held by said spring and/or the optional rotational stop 24 in Positions A or B, or anywhere in this general area.
- Position A is the point where a maximum gap exists between the magnets 15 and the cylinder 25
- Position C is the point where a minimum gap exists between the magnets 15 and the cylinder 25
- the gap at position B is approximately 50% of the differential gap as measured at Positions A and C.
- the magnets 15 must be sufficiently close to the wall of the cylinder 25 to allow a flux field of the magnets 15 to pass through the wall of the conductive cylinder 25.
- the presence of the flux field through the wall of the conductive cylinder 25 will cause a flow of electrons, otherwise known as an eddy current, when the cylinder is in motion relative to the magnets 15.
- the strength of the resulting magnetic field from the eddy current must be sufficient to rotate the magnet carrier 17 about the eccentric axle 20 as a result of the force exerted on the magnets by the eddy current.
- the torsional spring 18 applies a force which resists rotation of the magnet carrier 17.
- the magnet 15 will cause an eddy current to form in the cylinder 25 and will create a localized magnetic field which opposes the field of the magnets 15; a force is exerted on the magnets 15 in a direction tangential to the surface of the conductive cylinder in the proximity of the magnets. Constrained by the eccentric axle 20 and magnet bearings 19 the tangential direction of force translates to a circumferential rotation of the magnet carrier 17 resulting in a decreased radial gap between the magnets 15 and the conductive cylinder 25 as the rotational speed of the cylinder 25 increases.
- the relative rotation of the magnet 15 and the magnet carrier 17 can be constrained by a rotational stop 24 wherein the stop 24 has an inwardly-extending tab 44 which seats in the groove 45 of the eccentric axle 20.
- An outwardly extending tab 49 is formed on the stop 24 which restricts rotation of the magnet carrier 17 by contacting the edges of the magnet carrier which form the axially-extending gap formed in the magnet carrier 17 opposite the channel 46, thereby limiting the rotation of the magnet carrier 17 relative the eccentric axle 20.
- a non-linear relationship between power and cylinder rotational velocity is established by causing the magnets 15 to change their flux density through which the cylinder must pass as the speed of the cylinder increases. In the first embodiment, this is done by the magnets 15 rotating on a centerline that is eccentric to the axis of rotation of the conductive cylinder 25. In this embodiment, the centerline of the axle 23 and the centerline of rotation of the magnet 15 and the magnet carrier 17 are offset from one another by the eccentric axle 20.
- FIG. 7 shows data points taken from product testing of the configuration represented herein.
- the X-axis represents bicycle speed as measured in miles per hour (MPH), which is directly proportional to cylinder rotational speed.
- the Y-axis represents power produced by the rotation of the cylinder 25, as measured in Watts.
- the non-linear increase in power with increasing speed is similar to actual conditions when riding a bicycle outdoors, representing the combined effects of rolling resistance and aerodynamic resistance.
- a rotational stop 24 is employed to limit the rotation of the magnet carrier 17 relative the cylinder 25, as described above. Limiting rotation in either direction of rotation will limit the range of magnet gap between the cylinder and magnet which will have a corresponding effect on resistance to allow production of a desired power/speed curve.
- the resistance mechanism 42 described herein can be employed on other devices used with human-powered three-wheeled vehicles such as tricycles and handcycles. As shown in FIGS. 8 and 9 , a smaller roller assembly using two rotating drums is employed to allow the driven wheel to rotate under human power while the vehicle remains stationary. One or both of the drums in this embodiment can house the resistance mechanism of the present disclosure.
- FIG. 8 shows an alternative embodiment where the rear wheel 27 of a recumbent tricycle 26 is mounted on top of a trainer 29 consisting of two cylindrical drums - a front drum 30 and a rear drum 31 - and a frame having two rails 32 to which the drums are affixed.
- a trainer 29 consisting of two cylindrical drums - a front drum 30 and a rear drum 31 - and a frame having two rails 32 to which the drums are affixed.
- the front drum 30, the rear drum 31, or both house the resistance mechanism 42 as heretofore described.
- FIG. 9 shows an additional embodiment where the front wheel 34 of a handcycle 33 is mounted on top of a trainer 35 consisting of two cylindrical drums - a front drum 36 and a rear drum 37 - and a frame having two rails 38 to which the drums are affixed.
- a pair upwardly-extending arms 39 are affixed to the frame, each extending upwardly from one of rails 38 in such a way that each arm can be adjusted to contact one of the outer rails of the handcycle's leg rests 40.
- the arms 39 are positioned in such a way that they contact the leg rests forward of the axis of steering rotation so that the handcycle remains stable as it is being pedaled on the trainer 35 by the user.
- either the front drum 36, the rear drum 37, or both house the resistance mechanism 42 as heretofore described.
- FIG. 10 shows an alternative embodiment of the trainer 35 as used with a handcycle 33.
- a further embodiment includes a cylindrical magnet (not shown) which is mounted in close proximity to the outer surface of the conductive cylinder 25.
- the magnet does not rotate on a concentric centerline to the drum centerline, but instead is initially oriented such that the equator of said magnet(s) is oriented toward said conductive cylinder when the cylinder is at rest.
- the cylindrical magnet(s) (not shown) will rotate on their axis against a torsional spring 41 (not shown) such that one of the poles of the magnet will become oriented in the direction of the conductive cylinder as the cylinder 25 increases in rotational speed. Since the magnetic flux field near the equator of a cylindrical magnet is less dense than the magnetic flux field at the magnet's poles, the effect of power versus cylinder rotations speed is comparable to the embodiment with magnets positioned inside the conductive cylinder.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Claims (8)
- Vorrichtung (42) mit progressivem Widerstand, die Folgendes umfasst:einen leitfähigen Zylinder (25) mit einer Außenwand, die eine innere Kammer definiert;eine erste Achse (23), um die der Zylinder (25) drehbar ist;eine exzentrische Achse (20), die die erste Achse (23) umgibt und gegenüber der ersten Achse drehbar ist;eine Torsionsfeder (18), die einen Abschnitt der exzentrischen Achse (20) umschließt, wobei die Torsionsfeder dazu ausgebildet ist, eine der von einem Wirbelstrom in dem leitfähigen Zylinder erzeugten entgegengesetzte Kraft bereitzustellen;einen Magnetträger (17), der die exzentrische Achse teilweise umschließt;wobei ein Magnet (15) von dem Magnetträger getragen wird;wobei ein Lager (19) zwischen dem Magnetträger und der exzentrischen Achse steckt, wobei der Magnetträger auf einer zur Achslinie der ersten Achse exzentrischen Achslinie um die exzentrische Achse drehbar ist, wodurch der Abstand zwischen dem Magneten und der Außenwand gemäß Definition durch die Drehstellung des Magnetträgers gegenüber der Außenwand veränderlich ist;wobei der leitfähige Zylinder (25) derart orientiert ist, dass die Drehung es dem Magnetträger (17) ermöglicht, sich gegen die Torsionsfeder (18) zu bewegen, um in einer progressiven Beziehung zwischen Drehzahl und Widerstand zu resultieren.
- Vorrichtung mit progressivem Widerstand nach Anspruch 1 und ein Rollen-Fahrradtrainer mit einer Vielzahl von Rollen zum Tragen eines Fahrrads, wobei es sich bei der Vorrichtung mit progressivem Widerstand um eine der Vielzahl von Rollen handelt.
- Vorrichtung mit progressivem Widerstand nach Anspruch 2 und ein Rahmen (43), der die Vielzahl von Rollen trägt, wobei der Rahmen (43) zur Aufbewahrung zusammenklappbar ist.
- Vorrichtung mit progressivem Widerstand nach einem der vorangehenden Ansprüche und ein Anschlag (24), der sandwichartig zwischen der exzentrischen Achse und dem Magnetträger (17) angeordnet ist, wobei der Anschlag eine sich nach innen erstreckende Nase (44) aufweist, die den Anschlag (24) in fester Rotationsausrichtung zu der exzentrischen Achse (20) hält; wobei der Anschlag (24) eine sich nach außen erstreckende Nase aufweist, die die Drehung des Magnetträgers (17) gegenüber der exzentrischen Achse (20) begrenzt.
- Vorrichtung mit progressivem Widerstand nach Anspruch 4 und eine in der exzentrischen Achse gebildete Rille (45) zum Aufnehmen der sich nach innen erstreckenden Nase.
- Vorrichtung mit progressivem Widerstand nach Anspruch 4 oder 5 und ein in dem Magnetträger (17) gebildeter Spalt zum Aufnehmen der sich nach außen erstreckenden Nase.
- Vorrichtung mit progressivem Widerstand nach einem der vorangehenden Ansprüche und ein Rollen-Fahrradtrainer mit einer ersten Rolle und einer zweiten Rolle, die auf einem Rahmen (43) getragen werden, wobei es sich bei einer der Rollen um die Vorrichtung mit progressivem Widerstand handelt.
- Vorrichtung mit progressivem Widerstand nach Anspruch 7 und ein Paar aufrechte Arme (39), die sich von dem Rahmen nach oben erstrecken.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13187846.4A EP2859922B1 (de) | 2013-10-09 | 2013-10-09 | Progressives Widerstandssystem für eine Übungsvorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP13187846.4A EP2859922B1 (de) | 2013-10-09 | 2013-10-09 | Progressives Widerstandssystem für eine Übungsvorrichtung |
Publications (2)
Publication Number | Publication Date |
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EP2859922A1 EP2859922A1 (de) | 2015-04-15 |
EP2859922B1 true EP2859922B1 (de) | 2016-05-18 |
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Application Number | Title | Priority Date | Filing Date |
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EP13187846.4A Active EP2859922B1 (de) | 2013-10-09 | 2013-10-09 | Progressives Widerstandssystem für eine Übungsvorrichtung |
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Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0621058A1 (de) * | 1993-04-21 | 1994-10-26 | Life Fitness | Vorrichtung zum Üben des Treppensteigens |
US6042517A (en) | 1998-09-10 | 2000-03-28 | Bell Sports, Inc. | Bicycle trainer magnetic resistance device |
US7011607B2 (en) | 2002-01-23 | 2006-03-14 | Saris Cycling Group, Inc. | Variable magnetic resistance unit for an exercise device |
US6857992B1 (en) | 2002-05-13 | 2005-02-22 | Saris Cysling Group, Inc. | Magnetic resistance system for a roller-type bicycle trainer |
US6964633B2 (en) | 2003-02-20 | 2005-11-15 | Saris Cycling Group, Inc. | Exercise device with an adjustable magnetic resistance arrangement |
US7101320B2 (en) * | 2003-09-22 | 2006-09-05 | Fitness Products Inc. | Damping device for exercising cycle |
DE102005003382B4 (de) * | 2005-01-24 | 2014-12-04 | Bernhard Lang | Simulator mit variabler Anpassung an Realbedingungen |
EP1868695A4 (de) | 2005-03-23 | 2008-07-30 | Saris Cycling Group Inc | Steuerung des widerstands in einem widerstandstrainingssystem über einen geschlossenen regelkreis |
NZ575464A (en) * | 2009-03-10 | 2010-07-30 | Holmes Solutions Ltd | Improvements in and relating to braking mechanisms |
-
2013
- 2013-10-09 EP EP13187846.4A patent/EP2859922B1/de active Active
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EP2859922A1 (de) | 2015-04-15 |
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