EP1364681A1 - Trainingsgerät für fahrrad - Google Patents

Trainingsgerät für fahrrad Download PDF

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Publication number
EP1364681A1
EP1364681A1 EP20020711342 EP02711342A EP1364681A1 EP 1364681 A1 EP1364681 A1 EP 1364681A1 EP 20020711342 EP20020711342 EP 20020711342 EP 02711342 A EP02711342 A EP 02711342A EP 1364681 A1 EP1364681 A1 EP 1364681A1
Authority
EP
European Patent Office
Prior art keywords
bicycle
trainer
rotary body
drive unit
flywheel
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.)
Withdrawn
Application number
EP20020711342
Other languages
English (en)
French (fr)
Other versions
EP1364681A4 (de
Inventor
Yoshifumi Mizuno Corporation MIYATA
Katsuji Mizuno Corporation Yoro Factory AKAIKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mizuno Corp
Original Assignee
Mizuno Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mizuno Corp filed Critical Mizuno Corp
Publication of EP1364681A1 publication Critical patent/EP1364681A1/de
Publication of EP1364681A4 publication Critical patent/EP1364681A4/de
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • A63B2069/161—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles supports for the front of the bicycle
    • A63B2069/162—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles supports for the front of the bicycle for front fork or handlebar
    • 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
    • A63B2069/164—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles supports for the rear of the bicycle, e.g. for the rear forks
    • 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
    • A63B2069/164—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles supports for the rear of the bicycle, e.g. for the rear forks
    • A63B2069/165—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles supports for the rear of the bicycle, e.g. for the rear forks rear wheel hub supports
    • 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
    • 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 present invention relates to a trainer where training can be conducted by using an actual bicycle running in the open air. More specifically, the present invention relates to a trainer used for training by mounting the bicycle from which the wheel is removed.
  • a so-called three-roller system bicycle trainer 150 is publicly known. It has a pair of frames 151 on both sides. The frames 151 are provided with three rollers 152, 153 and 154. Two rollers 153 and 154 of them are provided in close proximity. Further, the other roller 152 provided distantly is linked to the roller 153 of the above-described two rollers so as to be rotation-coupled by a belt 155.
  • a rear wheel 181 of a bicycle is mounted between the rollers 153 and 154 provided in mutual close proximity, and a front wheel 182 is mounted just over the other roller 152. Thereafter one may get on the bicycle to rotate a pedal.
  • the rear wheel 181 is rotated by rotating the pedal, the front wheel 182 is also rotated through the roller 153, the belt 155 and the roller 152.
  • the bicycle does not overturn due to the gyroscopic effect, and the training can be conducted with the same feeling as in actual riding.
  • Fig. 16 shows another bicycle trainer 160 that is publicly known. It has a frame 161 capable of mounting a bicycle from which the front wheel is removed.
  • the frame 161 is provided with a roller 162, which rotates while contacting with a tire 165 of a rear wheel of the bicycle, and a resistance imparting means 163 for imparting resistance to rotation of the roller 162.
  • a bicycle trainer is used in the invention of, for example, U.S. Pat. No.4,441,705 or Japanese Examined Patent Application Publication No.2-57947.
  • Fig. 17 shows still another bicycle trainer 170 that is publicly known. It has a frame 171 comprising a fixing means for fixing and supporting both ends of a hub 176 in a rear wheel 175 of the bicycle.
  • the frame 171 further comprises a roller 172 for rotating a tire 177 in the rear wheel 175 of the bicycle mounted on the frame 171 while contacting with the tire, and a resistance imparting means 173 for imparting resistance to rotation of the roller 172.
  • a bicycle trainer is used in the invention of U.S. Pat. No.4,768,782, Japanese Unexamined Patent Application Publication No.6-190078, or Japanese Examined Patent Application Publication No.6-87901.
  • the gyroscopic effect obtained by rotating the front and rear wheels of the bicycle on the roller allows the bicycle to be righted and a rider to keep balance, thereby realizing stable running.
  • the running is conducted in a position higher than the ground by the height of the roller as compared with actual running by the bicycle in the open air.
  • it is very difficult for a beginner to ride on the bicycle using the three-roller system bicycle trainer because, for example, a width where the bicycle can run is limited to the width of the roller, which causes a sense of fear of falling from the bicycle due to running off from the rollers.
  • the roller which imparts resistance to a tire in the rear wheel of the bicycle is contacted with the tire to impart resistance to rotation of the rear wheel. Accordingly, there arises a problem that the tire is more intensely worn than that in usual running in the open air by such an effect as frictional resistance or frictional heat between the tire and the roller in the course of continuation of training. Users may therefore feel reluctant to go on training because of the increased frequency in replacement of the tire. Furthermore, there arises a problem that, during the training, a foreign odor is generated from a rubber of the tire by the above-described frictional resistance or frictional heat.
  • the bicycle trainer by fixing and supporting the hub in the rear wheel of the bicycle and imparting rotational resistance to the tire of the rear wheel has the same problems as the above-described one for conducting training by fixing and supporting the front fork end part of the bicycle from which the front wheel is removed and driving the rear wheel.
  • the trainer has the following problems.
  • the bicycle trainer 170 the tire 177 in the rear wheel 175 of the bicycle mounted on the frame 171 is brought into contact with the roller 172 fixed to the resistance imparting means 173 so as to impart rotational resistance to rotation of the rear wheel 175.
  • the trainer 170 must take a construction that the rear wheel 175 is lifted from a floor surface 193 where the bicycle trainer 170 is installed.
  • the front wheel 192 of the bicycle is left on the floor surface 193 as it is because a load does not have to be imparted to the wheel. Accordingly, since the bicycle is installed in a position where a front part of the bicycle is lower than that in an usual horizontal position, a rider is plunged forward in conducting training, and has a feeling different from that in actual running, thereby feeling uncomfortable to conduct training.
  • the conventional bicycle trainers for conducting training by mounting an actual bicycle running in the open air take a construction such that a roller or the like is brought into contact with a driving rear wheel of the bicycle as a resistance imparting means. Therefore, at least the rear wheel must be rotated. Accordingly, the wheel of the bicycle having spokes spreading almost radially from the hub is rotated at a high speed, where anyone other than the rider on training might approach the rotating wheel and touch it or be caught in it. Particularly, in the case of conducting training at home or elsewhere, there is a problem that it is very dangerous when a child or a baby is present.
  • the present invention has been made, in view of these conventional problems described above, to provide a bicycle trainer where a comfortable training environment offering the same feeling as in running out of doors can be obtained. According to the present invention, noise occurring at the training can be reduced while securing safety in the vicinity of the trainer. Even a beginner can easily treat it, and training can be conducted at a minimum space required.
  • the bicycle trainer 1 according to the present invention which has been made to solve each of the above-described problems is described below.
  • the bicycle trainer 1 is a trainer for conducting load training by mounting a bicycle 11 from which at least a rear wheel is removed, and by imparting load resistance to a drive unit 8 of the bicycle 11.
  • the bicycle trainer 1 has a body part 2 for stably installing the trainer on the ground.
  • the body part 2 comprises a frame end fixing means 4 for supporting and fixing a frame end part 14 of the bicycle 11 from which the rear wheel is removed, a rotary body 5 linked to the drive unit 8 of the bicycle 11 and rotated by a coupled driving with the drive unit 8, and a rotation control unit 6 for controlling the rotation of the rotary body 5.
  • the rear wheel of the bicycle 11 is removed together with the hub from the frame end part 14, and the frame end part 14 is supported by the frame end fixing means 4 in the trainer 1.
  • the drive unit 8 in the bicycle 11 and the rotary body 5 are mutually linked through the transmission means 9 so that the rotary body 5 can be rotated by a driving force generated from the drive unit 8.
  • the rotary body 5 is linked to the rotation control unit 6 of other member and load resistance will be generated from the rotation control unit 6 accompanying rotation of the rotary body 5.
  • the load resistance generated from the rotation control unit 6 will appear as resistance when a rider steps on (pulls up) a pedal 41 of the bicycle 11 mounted on the trainer 1, and will be the load when the rider on the bicycle 11 conducts pedaling.
  • the rotary body 5 of the bicycle trainer 1 is constructed so as to be directly linked to the drive unit 8 of the bicycle 11 mounted. Specifically, when a rider of the bicycle 11 steps on the pedal 41, a crank arm 42 fitted with the pedal 41 is rotated. A chain wheel fitted on the crank arm 42 is then rotated, and a chain 15 of the transmission means 9 hung on the chain wheel is turned around. The rotary body 5 on which the chain 15 is hung is in turn rotated, and as a result, load resistance is generated from the rotation control unit 6.
  • the frame end fixing means 4 provided on the body part 2 of the bicycle trainer 1 surely supports and fixes the frame end part 14 of the bicycle 11.
  • any construction may be employed.
  • a shaft 53 is inserted into the frame end of the bicycle 11, and the frame end part 14 is then supported and fixed coaxially on the shaft 53 by pressing it from both of the internal and external sides.
  • the ends of a hub of the rear wheel were only fixed by pressing them each other from the outside, which gave a trainee a sense of anxiety about falling of a fixed portion, and also constituted a limiting factor against concentration on the training.
  • the frame end fixing means 4 of the bicycle trainer 1 according to the present invention can surely support and fix the rear end part of the frame by constructing it as described above, which enables a trainee to concentrate on the training without giving the trainee a sense of anxiety as in conventional technology.
  • the rotary body 5 is rotatably installed on the body part 2 of the trainer 1, linked to the drive unit 8 of the bicycle 11 mounted on the trainer 1, and may be rotated by a driving force generated from the drive unit 8. It is preferable that the rotary body 5 is constructed, for example, by a sprocket 51 and can be hung on the chain 15 as the transmission means 9 of the bicycle 11.
  • a multistage sprocket (a so-called “cassette sprocket” or “cassette cog") which corresponds to the change gear mounted on the bicycle 11 is preferably installed.
  • the multistage sprocket refers to a sprocket 51 which is constructed by mutually overlapping a plurality of sprocket cogs different in diameter (number of cogs).
  • the hub of the rear wheel used for the bicycle 11 may be applied, with both ends of the hub being fixed to the body part 2. More specifically, as shown in Fig. 13, "Axial Shaft” together with “Quick Release Lever” is extracted from the hub, and a shaft 53 formed by a bolt body is inserted thereto in place of the axial shaft. Both ends of the shaft 53 are then fixed to the body part 2 by a fixing member formed almost in the shape of ⁇ .
  • each of a mountain bike (MTB or ATB), a road racing bicycle or a bicycle for a track event (KEIRIN or PISTA) is different in a hub width. It is thus preferable that the hub for axially supporting the rotary body 5 is constructed so as to be arbitrarily changed depending on the form of the mounted bicycle 11.
  • the bicycle for a track event is not provided with a change gear under playing rules, it is additionally noted that as the rotary body 5, a multistage sprocket is not required to be provided on the trainer 1.
  • the rotation control unit 6 controls the rotation by the rotary body 5 described above, and generates the load resistance associated with the rotation by the rotary body 5.
  • the load resistance generated from the rotation control unit 6 appears as resistance when a rider steps on (pulls up) the pedal 41 of the bicycle 11 mounted on the trainer 1, and will be the load when the rider on the bicycle 11 conducts pedaling.
  • "Froude method" load resistance generating unit may be employed where fluid such as oil is passed through a vessel and fluid resistance at this moment is used to generate load resistance, or a combination of a freely rotatable flywheel 61 and a load resistance generating unit which is depressed by an outer peripheral surface of the flywheel 61 to create friction and thereby generating load resistance.
  • the rotation control unit 6 is preferably constructed by combining the flywheel 61 and a magnet.
  • the flywheel 61 of the rotation control unit 6 is provided so as to couple to the rotary body 5, and a magnet is placed in the outer vicinity of the flywheel 61, so that magnetic flux of the magnet is concentrated on the outer periphery of the flywheel 61.
  • a magnet is placed in the outer vicinity of the flywheel 61, so that magnetic flux of the magnet is concentrated on the outer periphery of the flywheel 61.
  • the load resistance increases with the amount of eddy current generated; on the other hand, when the magnet is distanced from the outer peripheral surface of the flywheel, the load resistance decreases with the amount of eddy current generated.
  • the flywheel 61 As to the flywheel 61, a large amount of the eddy current can be generated by thickly forming a width size thereof. Thus even the flywheel 61 having a small diameter can generate sufficient rotational resistance. When the flywheel 61 having a small diameter is used, the speed at the passing over the magnet can be set to a low speed, which allows noise generated in use of the trainer 1 to be reduced.
  • the flywheel 61 of the rotation control unit 6 may be provided coaxially with the rotary body 5 to allow the flywheel to coaxially rotate.
  • the rotary body 5 may be supported by a first shaft 53, while the flywheel 61 may be supported by a second shaft 64, thereby each of them being installed so as to freely rotate.
  • the flywheel 61 can be disposed at the lower side of the bicycle trainer 1.
  • the flywheel 61 exerts a gyroscopic action.
  • the body part 2 can be stabilized during the operation of the trainer 1.
  • each of the shafts 53 and 64 must be linked to each other by the transmission member 7 so as to couple these rotary body 5 and flywheel 61 with each other.
  • the transmission member 7 may take any construction as long as torque from the rotary body 5 can be surely transmitted to the flywheel 61.
  • the transmission member 7 may be preferably constructed by providing pulleys 52 and 63 on the first and second shafts 53 and 64, respectively, and hanging these two pulleys 52 and 63 on a V-belt. The transmission of a driving force by a combination of "pulley” and “belt” accompanies “friction" or "slipping".
  • the friction or the slipping may cause noise.
  • the above-described V-belt effectively transmits a driving force because it contacts with the pulley through a contact area wider than a formed width of the belt in view of the characteristics thereof. Accordingly, not only "slipping" can be prevented, but also the noise generated at the rotation of the V-belt can be reduced.
  • the pulley 52 provided coaxially with the sprocket is preferably also provided and fixed on the hub. For example, as shown in Fig.
  • the pulley 52 may be disposed on the flange part of the hub into which the shaft 53 is inserted, while fixing bolts are inserted into spoke holes drilled on the flange part, and thereby the pulley 52 is screwed for fixing together with a nut body by the bolts.
  • the transmitting member 7 may employ a "belt drive” constructed by a combination of two pulleys 52 and 63, and a timing belt; a “chain drive” constructed by a combination of two sprockets and a chain; a “shaft drive” constructed by a combination of two bevel gears and a driving shaft; or the like.
  • one construction example may comprise a roller bearing provided on the shafts 53 and 64, both ends of which being fixed on the body part 2, wherein the rotary body 5 or the like rotates through the roller bearing.
  • a roller bearing may be provided between the ends of shafts 53 and 64 and the body part 2, wherein the shafts 53 and 64 themselves rotate through the roller bearing.
  • the present invention includes any of these construction examples.
  • the shaft 53 supporting the rotary body 5 relative to the body part 2 is supported and fixed to be freely separable, at least, in the frame end fixing means 4 at the (right) side having the drive unit 8 of the bicycle 11.
  • the end 75 at the side on which the sprocket 51 is fixed in the hub is constructed so as to be freely separated from the frame end fixing means 4, and when the bicycle 11 is attached and/or removed, the lower side 73 of the loop-shaped chain 15 as a driving force transmitting means 9 can be easily passed.
  • the support 72 in the body part 2 when the support 72 in the body part 2 is constructed so that the end 75 of the shaft 53 can be easily opened, the lower side 73 of the chain 15 is easily passed, and hence it is more preferable.
  • the support 72 is rotatably provided so as to be freely rotated in the lateral or longitudinal direction relative to the body part 2 through a turning axis, and the end 75 of the shaft 53 can be separated by turning the support 72.
  • the support 72 is provided so as to be freely advanced or retracted in the lateral direction relative to the body part 2, and the end 75 of the shaft 53 can be separated by sliding the support 72.
  • the fixing means 4 provided on the top end of the support 72 can be penetrated between the upper side 74 and the lower side 73 of the loop-shaped chain 15 without separating the end 75 of the shaft 53 when the bicycle is attached and/or removed.
  • the bicycle trainer 1 may be constructed so as to mount the bicycle 11 from which both of the front and rear wheels are removed. More specifically, the fork end fixing means 3 supporting and fixing the fork end part 13 of the front fork point in the bicycle 11 is provided on the body part 2 of the bicycle trainer 1, the front wheel of the bicycle 11 mounted is removed with the hub thereof from the fork end part 13, and the fork end part 13 is supported and fixed by the fork end fixing means 3.
  • the body part 2 may provide a distance adjustment means so as to arbitrarily change a distance between the frame end fixing means 4 and the fork end fixing means 3 depending on the size of the bicycle 11 mounted.
  • this distance adjustment means an arm member freely movable in the longitudinal direction may be provided at a front part of the trainer body part 2, and the fork end fixing means 3 may be provided at a point of the arm member.
  • the arm member can be turned (tilted) depending on the size of a wheel base (a distance between the frame end part 14 and the fork end part 13) to be adapted to the wheel base associated with the individual bicycle 11 mounted.
  • the distance adjustment means is not limited to the above-described construction.
  • the body part 2 of the bicycle trainer 1 may be constructed as a divided body comprising a rear part 84 providing the frame end fixing means 4 and a front part 83 providing the fork end fixing means 3, where these parts are assembled so as to freely slide each other.
  • the divided body constructing the body part 2 can be slided in the longitudinal direction depending on the size of the wheel base to be adapted to the wheel base associated with the individual bicycle 11 mounted.
  • the mode of usage can be changed depending on whether a training place is indoors or outdoors. More specifically, when using the trainer in the room, for example, the front body part 81 is assembled with the rear body part 82, and the bicycle 11 from which both of the rear and front wheels are removed is mounted thereto. Thus a wheel covered with mud or dust is not brought into contact with a floor surface, and the bicycle 11 can therefore be taken into the room without reserve. In addition, since the front wheel is removed, it is possible to economize on room space equivalent to the half circle portion of a front side in the front wheel.
  • the front body part 81 of the body part 2 can be removed, and only the rear body part 82 of the body part 2 can therefore be readily brought out.
  • the bicycle 11 from which only the rear wheel is removed is mounted thereon and training or a warm-up before a competition can be conducted.
  • the trainer 1 is extremely effective also in the respect that a so-called "competition wheel” can be set apart for later use.
  • a player has prepared the "competition wheel” adjusted with a high degree of accuracy at a competition, and has conducted a warm-up by mounting an exercise wheel before a competition separately.
  • the trainer 1 when used, a warm-up can be sufficiently conducted without worrying about deviation of spoke tension in the "competition wheel” or tire wear also in the warm-up before a competition. Therefore, the trainer 1 contributes to prevention of injury during a competition or improvement of a competition record. In addition thereto, since an exercise wheel need not be brought to a stadium, the trainer 1 also contributes to reduction of equipment (baggage) on a road trip.
  • equipment baggage
  • noise generated in use of the bicycle trainer 1 according to the present invention and of the bicycle trainer according to the conventional technology is measured, respectively, and the measurement data are shown below.
  • a cycle trainer manufactured by CATEYE CO.,LTD, using the technology described in Japanese Examined Patent Application Publication No.4-4765 is selected as Comparative Example.
  • the cycle trainer has a construction where a roller is brought into contact with a rear wheel (tire surface) of the bicycle 11 and load resistance is imparted to the rear wheel of the bicycle 11 by the roller.
  • the bicycle 11 is mounted on the trainer.
  • the gear ratio is then set to a predetermined gear ratio.
  • the pedal 41 is rotated by a constant number of rotations, followed by keeping the state.
  • noise in a certain specified time band (10 seconds in this measurement) is measured by the noise meter described above.
  • the measurement data are shown in the following table.
  • the "gear ratio” refers to a numerical value which is determined by dividing the number of cogs of the front gear (chain wheel) in the bicycle 11 by that of the rear gear (sprocket 51).
  • the “number of pedal rotations” refers to the number of rotations of the crank arm 42 per one minute and is generally designated “cadence”.
  • the "equivalent sound level” indicates a noise level of continuous stationary sound having energy equivalent to it during a measuring time.
  • the “maximum value” indicates a maximum value of a noise level during a measuring time.
  • these "equivalent sound level” and “maximum value” are calculated by a measuring instrument and then stored for output.
  • the equivalent sound level of the present invention is lower than that in Comparative Example by 15 to 30%, and the maximum value during the measuring time of the present invention is also lower than that in Comparative Example by about 13 to 25%.
  • the present invention is therefore obviously more excellent than Comparative Example in the quietness.
  • the noise emitting source of the trainer itself includes the following three sources: bearings within the hub, bearings within the flywheel 61, and friction sound between the belt and two pulleys 52 and 63.
  • bearings within the hub bearings within the flywheel 61
  • friction sound between the belt and two pulleys 52 and 63 Even if the virtual running speed is increased, the rotating speed of each part is not so high as that in the contact area between the tire and the roller in Comparative Example, and furthermore the flywheel 61 and the pulleys 52 and 63 are stably rotated. Thus the noise is not rapidly increased.
  • the trainer 1 according to the present invention is used without placing thereon the cover body 31. That is, even if the rotary body 5 or the rotation control unit 6 is not covered with a cover, the present invention exerts excellent quietness as compared with a conventional example. Therefore, if the rotary body 5 or the rotation control unit 6 of the trainer 1 is covered with the cover body 31, more reduction in noise can be expected.
  • Fig. 1 is a perspective view showing a First Example of the trainer according to the present invention.
  • the bicycle trainer 1 is a trainer for conducting training by supporting a bicycle 11 from which the front and rear wheels are removed and imparting load resistance to a drive unit 8 of the bicycle 11.
  • the trainer 1 according to the Example comprises a body part 2 constructed so as to stably install the trainer on the floor surface or the like; a frame end fixing means 4 and fork end fixing means 3 provided on the body part 2 for supporting and fixing end parts 13 and 14 of the bicycle 11 from which the front and rear wheels are removed; a rotary body 5 formed so as to be linked to a transmission means 9 transmitting a driving force generated by the drive unit 8 of the bicycle 11, the rotary body 5 being rotated by the link; and a rotation control unit 6 for controlling torque of the rotary body 5.
  • the rotary body 5 and the rotation control unit 6 are provided individually, and are constructed such that torque of the rotary body 5 rotated by a driving force generated from the drive unit 8 of the bicycle 11 is transmitted through a transmission member 7 to the rotation control unit 6, where the torque is controlled.
  • the rotary body 5 takes a construction having a sprocket 51 and a first pulley 52.
  • the sprocket 51 is the same as that constructed on a driving rear wheel mounted on the bicycle 11, and is formed so as to engage with a chain 15 which is a transmission means 9 transmitting a driving force generated by the drive unit 8 of the bicycle 11.
  • the first pulley 52 is provided coaxially with the sprocket 51 on a shaft 53 (hub) supporting the sprocket 51 so as to be rotated while integrally coupling to the sprocket 51 centering on the shaft 53.
  • the rotational control unit 6 takes a construction having a flywheel 61, a load resistance generating unit 62 and a second pulley 63.
  • the load resistance generating unit 62 imparts load resistance to torque of the flywheel 61.
  • the second pulley 63 is provided so as to be rotated while integrally coupling to the flywheel 61 centering on a shaft 64 supporting the flywheel 61.
  • first pulley 52 of the rotary body 5 and the second pulley 63 of the rotation control unit 6 are connected through a transmission member 7. Accordingly, the rotary body 5 and the rotation control unit 6 are constructed so as to couple to each other.
  • the rotation control unit 6 is provided in a region lower than a frame 12 of the bicycle 11 supported. Accordingly, since the rotation control unit 6 does not protrude beyond a width or length of the bicycle 11, the trainer 1 as a whole can be downsized and training can be conducted even in a narrow place.
  • the lower region indicates a region directly below the frame 12 of the bicycle 11 and a region where the rotation control unit 6 does not protrude beyond the width and length of the bicycle 11.
  • Fig. 2 shows the Second Example.
  • the rotary body 5 comprises a sprocket 21.
  • the sprocket 21 is the same as that constructed on the driving rear wheel mounted on the bicycle 11 and is formed so as to engage with the chain 15 of the bicycle 11.
  • the rotational control unit 6 takes a construction having a flywheel 22 and a load resistance generating unit 23 imparting load resistance to torque of the flywheel 22.
  • a shaft of the sprocket 21 constructing the rotary body 5 and a shaft of the flywheel 22 constructing a part of the rotation control unit 6 are the same shaft 24.
  • the sprocket 21 and the flywheel 22 are coaxially constructed so as to be rotated while integrally coupling to each other by centering on the shaft 24. Accordingly, the number of parts constructing the trainer can be reduced.
  • the rotation control unit 6 has a form where a permanent magnet is used as the load resistance generating unit, and the magnet is disposed adjacently to the peripheral surface of the flywheel to generate eddy current on the flywheel, and a position where the permanent magnet is disposed is freely changed relative to the flywheel to give a change to the eddy current, thereby adjusting load resistance added to torque of the flywheel. Accordingly, even at a low speed, large load resistance can be obtained and a flywheel having a small diameter can be used. Furthermore, by virtue of using a small flywheel, not only generation of noise can be reduced in the rotation thereof but also downsizing of the rotation control unit 6 as a whole can be attained.
  • a cover body 31 covering respective parts constructing the rotation control unit or rotary body as described above is attached. Accordingly, vibration or sound generated from the rotation control unit or the rotary body can be suppressed. Furthermore, respective parts operated by training are cut off from the outside world, thereby enhancing safety.
  • the trainer according to the present invention enables mounting of a bicycle from which the front and rear wheels are removed, and gives the same feeling as in actual running. At the same time, risks associated with rotation of wheels are eliminated, and vibration or wear of the tire due to rotation of the wheels can be prevented.
  • the rotary body or the flywheel as the constituent elements according to the present invention, quiet rotation can be obtained.
  • a cover body for enhancing a quiet effect noise heretofore generated from a contact part between a tire and a roller is completely eliminated, and training can be carried on quietly and comfortably.
  • a space for the wheel part is not required, and training using the bicycle can be conducted even in a narrow place such as a room of his own.
  • the bicycle trainer according to the present invention is characterized by taking a construction where respective constituent elements of the body part, the frame end fixing means, the rotary body and the rotation control unit are combined with each other, and by enabling the mounting of a bicycle from which the front and rear wheels are removed.
  • a bicycle suitable for sport running there are various bicycles such as a road racing bicycle, a mountain bike and a cross bike.
  • the front and rear wheels mounted on the bicycle are constructed so that the wheels can be easily attached and/or removed in order to immediately respond to troubles in the wheels such as burst.
  • the hub of the wheel is fixed to the frame end part of the bicycle by the "quick release lever", and the wheel can be easily fixed to and released from the end part by turning the lever.
  • a driving force generated due to rotation of the pedal 41 by a trainee is transmitted from the crank arm 42 to the sprocket 51 through the chain 15 to cause torque of the sprocket 51.
  • a first pulley 52 is rotated because it is provided coaxially with the sprocket 51.
  • the torque thereof is transmitted to a second pulley 63 through a V-belt, whereby the second pulley 63 is rotated.
  • a flywheel 61 is rotated because it is provided coaxially with the second pulley 63.
  • a force controlling the torque acts by the load resistance generating unit 62, whereby load resistance is imparted to the torque.
  • This load resistance applied to the flywheel 61 is transmitted from the sprocket 51 constructing a part of the rotary body through the chain 15 to rotation of the pedal 41, whereby a training effect can be obtained.
  • the body part 2 can take a construction having supports 71 and 72 provided for supporting and fixing the shaft 53.
  • the shaft 53 having the sprocket 51 and the first pulley 52 is supported and fixed in a "cantilever" state by the left side support 71 of the body part 2 when the bicycle 11 is not supported by the trainer 1. That is, the shaft 53 and the right side support 72 of the body part 2 are constructed with a clearance.
  • the lower side 73 of the loop-shaped chain 15 provided in the bicycle 11 is passed through between the end 75 of the shaft 53 and support 72, which are constructed with a clearance. Then, the upper side 74 of the chain 15 is engaged with the sprocket 51. Thereafter, the frame end part 14 is placed on the shaft 53, sandwiched and pressed from both sides by the frame end fixing means 4, and at the same time the end 75 of the shaft 53 is supported and fixed by the support 72.
  • this working mode is the same as that in installing wheels on the bicycle 11, the bicycle 11 having the loop-shaped chain 15 can be easily mounted on the trainer 1.
  • the shaft 53 is supported and fixed from both sides, and the bicycle 11 is firmly fixed to the trainer 1. A trainee can therefore conduct training with ease.
  • the body part 2 may be divided into the front body part 81 at the side of the frame end fixing means 3 fixing the front side end part 13 in the bicycle 11, and the rear body part 82 at the side of the frame end fixing means 4 fixing the rear side end part 14.
  • the trainer 1 is divided into two members of the front part 83 and the rear part 84. This is therefore advantageous in that portage is simple and space for storing the trainer not in use can be reduced.
  • the object of the present invention can be attained if the trainer 1 according to the present invention can support a bicycle from which at least the rear wheel is removed. Therefore, by using only the rear part 84 of the trainer 1 where the body part 2 is divided, as described above, the bicycle 11 can be also supported on the trainer 1 in a state where only the rear wheel of the bicycle 11 is removed, as shown in Fig. 7.
  • the space for training is increased by the length of radius of the front wheel.
  • the trainer according to the present invention is used as warming-up exercises before running out of doors, the working for supporting the bicycle on the trainer becomes simpler because both of the front and rear wheels need not be removed.

Landscapes

  • 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)
  • Motorcycle And Bicycle Frame (AREA)
EP02711342A 2001-02-06 2002-02-06 Trainingsgerät für fahrrad Withdrawn EP1364681A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001029915 2001-02-06
JP2001029915 2001-02-06
PCT/JP2002/000980 WO2002062426A1 (fr) 2001-02-06 2002-02-06 Appareil d'entrainement pour bicyclette

Publications (2)

Publication Number Publication Date
EP1364681A1 true EP1364681A1 (de) 2003-11-26
EP1364681A4 EP1364681A4 (de) 2006-04-26

Family

ID=18894207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02711342A Withdrawn EP1364681A4 (de) 2001-02-06 2002-02-06 Trainingsgerät für fahrrad

Country Status (4)

Country Link
EP (1) EP1364681A4 (de)
JP (1) JP3932372B2 (de)
TW (1) TW574047B (de)
WO (1) WO2002062426A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1900398A1 (de) 2006-09-12 2008-03-19 Sport Service Mapei S.R.L. Ergometer
EP2014339A1 (de) 2007-06-20 2009-01-14 PORTER di Lincetto Orietta Fahrrad-Übungsgerät zum Gebrauch bei Fahrrädern
ES2445834A1 (es) * 2012-09-05 2014-03-05 Pablo GARCÍA LÓPEZ Eje con soporte que sustituye a la rueda trasera de una bicecleta
ITPR20130008A1 (it) * 2013-02-13 2014-08-14 Eco Inox S R L Dispositivo di allenamento ciclistico indoor e metodo per la misura della potenza
CN109876411A (zh) * 2019-01-24 2019-06-14 苏州哈度软件有限公司 基于信息共享以及投影映射的智能骑行控制方法及其系统
EP3756737A1 (de) * 2019-06-26 2020-12-30 Mathias Seidler Vorrichtung zum aufsitzen für eine person zu trainingszwecken zum ausüben einer dem radfahren ähnlichen beinrotationsbewegung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5876321B2 (ja) * 2012-02-23 2016-03-02 将行 木村 自転車用トレーナ
TWI602601B (zh) * 2017-01-10 2017-10-21 巨大機械工業股份有限公司 Bicycle trainer locking device
US11090543B2 (en) 2018-12-13 2021-08-17 Sram, Llc Decoupling hub assembly and a bicycle trainer with a decoupling hub assembly

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FR2365890A1 (fr) * 1976-09-24 1978-04-21 Milot Edouard Chargeur d'accumulateur a energie musculaire
US4789153A (en) * 1978-08-14 1988-12-06 Brown Lawrence G Exercise system
US5382208A (en) * 1994-03-02 1995-01-17 Hu; Hui-Hsin Magnetic-resistance control device for an exercise bicycle
US5466203A (en) * 1994-03-30 1995-11-14 Chen; George Magnetically controlled load adjusting structure of gymnastic apparatus
US5480366A (en) * 1994-03-17 1996-01-02 Harnden; Eric F. Stationary bicycle trainer
EP0842677A2 (de) * 1996-11-13 1998-05-20 Avantronic Systeme GmbH Ergometergestell zur Halterung eines Fahrradrahmens

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JPS54176671U (de) * 1978-06-02 1979-12-13
US4712790A (en) * 1987-04-20 1987-12-15 Schwinn Bicycle Company Cycle exerciser
JPH06229856A (ja) * 1993-01-29 1994-08-19 Bridgestone Cycle Co 自転車のペダル踏力測定器

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Publication number Priority date Publication date Assignee Title
FR2365890A1 (fr) * 1976-09-24 1978-04-21 Milot Edouard Chargeur d'accumulateur a energie musculaire
US4789153A (en) * 1978-08-14 1988-12-06 Brown Lawrence G Exercise system
US5382208A (en) * 1994-03-02 1995-01-17 Hu; Hui-Hsin Magnetic-resistance control device for an exercise bicycle
US5480366A (en) * 1994-03-17 1996-01-02 Harnden; Eric F. Stationary bicycle trainer
US5466203A (en) * 1994-03-30 1995-11-14 Chen; George Magnetically controlled load adjusting structure of gymnastic apparatus
EP0842677A2 (de) * 1996-11-13 1998-05-20 Avantronic Systeme GmbH Ergometergestell zur Halterung eines Fahrradrahmens

Non-Patent Citations (1)

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Title
See also references of WO02062426A1 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1900398A1 (de) 2006-09-12 2008-03-19 Sport Service Mapei S.R.L. Ergometer
EP2014339A1 (de) 2007-06-20 2009-01-14 PORTER di Lincetto Orietta Fahrrad-Übungsgerät zum Gebrauch bei Fahrrädern
ES2445834A1 (es) * 2012-09-05 2014-03-05 Pablo GARCÍA LÓPEZ Eje con soporte que sustituye a la rueda trasera de una bicecleta
ITPR20130008A1 (it) * 2013-02-13 2014-08-14 Eco Inox S R L Dispositivo di allenamento ciclistico indoor e metodo per la misura della potenza
CN109876411A (zh) * 2019-01-24 2019-06-14 苏州哈度软件有限公司 基于信息共享以及投影映射的智能骑行控制方法及其系统
EP3756737A1 (de) * 2019-06-26 2020-12-30 Mathias Seidler Vorrichtung zum aufsitzen für eine person zu trainingszwecken zum ausüben einer dem radfahren ähnlichen beinrotationsbewegung
US11400340B2 (en) 2019-06-26 2022-08-02 Mathias Seidler Device for a person to sit on for training purposes for executing a leg rotation movement similar to riding a bicycle

Also Published As

Publication number Publication date
WO2002062426A1 (fr) 2002-08-15
JPWO2002062426A1 (ja) 2004-06-03
TW574047B (en) 2004-02-01
JP3932372B2 (ja) 2007-06-20
EP1364681A4 (de) 2006-04-26

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