WO2010047521A2 - Motion converting apparatus and bicycle or training machine having the same - Google Patents

Motion converting apparatus and bicycle or training machine having the same Download PDF

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Publication number
WO2010047521A2
WO2010047521A2 PCT/KR2009/006080 KR2009006080W WO2010047521A2 WO 2010047521 A2 WO2010047521 A2 WO 2010047521A2 KR 2009006080 W KR2009006080 W KR 2009006080W WO 2010047521 A2 WO2010047521 A2 WO 2010047521A2
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WO
WIPO (PCT)
Prior art keywords
rotating shaft
way bearing
lower link
movable
link
Prior art date
Application number
PCT/KR2009/006080
Other languages
English (en)
French (fr)
Other versions
WO2010047521A3 (en
Inventor
Jae Sil Lim
Original Assignee
Jae Sil Lim
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 Jae Sil Lim filed Critical Jae Sil Lim
Priority to CN200990100011XU priority Critical patent/CN201988108U/zh
Publication of WO2010047521A2 publication Critical patent/WO2010047521A2/en
Publication of WO2010047521A3 publication Critical patent/WO2010047521A3/en

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0048—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with cantilevered support elements pivoting about an axis
    • A63B22/0056—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with cantilevered support elements pivoting about an axis the pivoting movement being in a vertical plane, e.g. steppers with a horizontal axis
    • 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
    • A63B21/15—Arrangements for force transmissions
    • 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
    • A63B21/15—Arrangements for force transmissions
    • A63B21/157—Ratchet-wheel links; Overrunning clutches; One-way clutches
    • 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
    • A63B22/04—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable multiple steps, i.e. more than one step per limb, e.g. steps mounted on endless loops, endless ladders
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K13/00—Cycles convertible to, or transformable into, other types of cycles or land vehicle
    • 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
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/18—Rider propulsion of wheeled vehicles by movement of rider's saddle
    • B62M1/20—Rider propulsion of wheeled vehicles by movement of rider's saddle with additional rider propulsion means
    • 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
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/32—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by directly driving the wheel axle, e.g. by using a ratchet wheel
    • 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
    • A63B22/0025—Particular aspects relating to the orientation of movement paths of the limbs relative to the body; Relative relationship between the movements of the limbs
    • A63B2022/0033—Lower limbs performing together the same movement, e.g. on a single support element
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/012—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters
    • A63B21/015—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters including rotating or oscillating elements rubbing against fixed elements
    • 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
    • A63B21/06—User-manipulated weights
    • A63B21/068—User-manipulated weights using user's body weight
    • 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
    • A63B22/20—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements using rollers, wheels, castors or the like, e.g. gliding means, to be moved over the floor or other surface, e.g. guide tracks, during exercising

Definitions

  • the present invention relates to a motion converting apparatus and a bicycle or a training machine having the same.
  • the motion converting apparatus includes an upper link unit, a lower link unit, a handle, a motion converter and a rotating shaft.
  • the upper link unit includes a first upper link of which a second end is rotated upwards and downwards around a first end thereof, and a second upper link which is rotatably coupled at a first end thereof to the second end of the first upper link such that the first end of the second upper link is rotatable around the second end thereof upwards and downwards in conjunction with the second end of the first upper link.
  • a seat is provided on one selected from the first and second upper links.
  • the lower link unit is provided under the upper link unit and includes a first lower link which is rotatably coupled at a first end thereof to the first end of the first upper link such that a second end of the first lower link is rotatable around the first end thereof, and a second lower link which is rotatably coupled at a second end thereof to the second end of the second upper link.
  • the second lower link is rotatably coupled at a first end thereof to the second end of the first lower link, so that the first end of the second lower link is rotated around the second end thereof upwards and downwards in conjunction with the second end of the first lower link.
  • the handle is coupled to an upper end of a vertical support provided adjacent to the second ends of the upper and lower link units.
  • the motion converter converts angular motion or linear motion generated by extending and contracting the upper and lower link units into rotational motion.
  • the rotating shaft is provided with a one-way bearing fitted over the rotating shaft.
  • the one-way bearing engages with the motion converter, so that the rotational motion generated by the motion converter is transmitted to the rotating shaft through the one-way bearing to rotate the rotating shaft.
  • an object of the present invention is to provide a motion converting apparatus which is constructed such that a user who sits on a seat which is provided on an upper link unit repeatedly conducts the motion of extending and contracting upper and lower link units using his/her weight and pedals which are provided on both sides of the lower link unit, thus enabling the user to more effectively conduct exercise for the waist and legs, and a bicycle or training machine having the motion converting apparatus.
  • the present invention provides a motion converting apparatus, including an upper link unit, a lower link unit, a handle, a motion converter and a rotating shaft.
  • the upper link unit includes a first upper link of which a second end is rotated upwards and downwards around a first end thereof, and a second upper link rotatably coupled at a first end thereof to the second end of the first upper link such that the first end of the second upper link is rotatable around the second end thereof upwards and downwards in conjunction with the second end of the first upper link.
  • a seat is provided on one selected from the first and second upper links.
  • the lower link unit is provided under the upper link unit and includes a first lower link rotatably coupled at a first end thereof to the first end of the first upper link such that a second end of the first lower link is rotatable around the first end thereof, and a second lower link rotatably coupled at a second end thereof to the second end of the second upper link.
  • the second lower link is rotatably coupled at a first end thereof to the second end of the first lower link, so that the first end of the second lower link is rotated around the second end thereof upwards and downwards in conjunction with the second end of the first lower link.
  • the handle is coupled to an upper end of a vertical support provided adjacent to the second ends of the upper and lower link units.
  • the motion converter converts an angular motion or a linear motion generated by extending and contracting the upper and lower link units into a rotational motion.
  • the rotating shaft is provided with a one-way bearing fitted over the rotating shaft.
  • the one-way bearing engages with the motion converter, so that the rotational motion generated by the motion converter is transmitted to the rotating shaft through the one-way bearing to rotate the rotating shaft.
  • the motion converter may include: a movable bar rotatably coupled at a lower end thereof to a left or right side of the first lower link such that an upper end thereof is rotatable around the lower end thereof; and a rotary plate rotatably coupled at a central portion thereof to the left or right side of the first upper link, the rotary plate engaging at a first end thereof with the one-way bearing fitted over the rotating shaft, with a connection bar extending from a second end of the rotary plate, the connection bar being rotatably coupled to the upper end of the movable bar.
  • the rotary plate may rotate upwards and downwards depending on the extension and contraction of the upper and lower link units, and the rotational force of the rotary plate may be transmitted to the rotating shaft through the one-way bearing such that when the upper and lower link units are extended or contracted, the rotating shaft is rotated in a forward direction.
  • the motion converter may include: a stationary bar, having a first end to which the rotating shaft is rotatably coupled such that the rotating shaft is disposed at a position adjacent both to the first end of the first upper link and to the first end of the first lower link; and a second end to which the second end of the second upper link and the second end of the second lower link are rotatably coupled; and a converting unit, having a movable bracket coupled to the first end of the stationary bar so as to be movable in a longitudinal direction, the movable bracket being disposed adjacent to a first or second end of the rotating shaft, wherein the first end of the first upper link and the first end of the first lower link are respectively coupled to upper and lower surfaces of one end of the movable bracket so as to be rotatable, and a rack disposed on an inner surface of an upper or lower plate of the movable bracket, the rack engaging with the one-way bearing which fitted over the first or second end of the rotating shaft, so that the rack is linearly moved by
  • the rack of the converting unit may be provided on the inner surface of the upper or lower plate of the movable bracket so as to be movable in a lateral direction of the movable bracket, such that the rack selectively engages with the one-way bearing which is rotatably fitted over the first or second end of the rotating shaft.
  • the height of a first side of the rack may be higher than that of a second side thereof, and a depression having a predetermined depth may be formed between the first and second sides of the rack, the depression extending a predetermined length in a longitudinal direction of the rack.
  • the one-way bearing may include: a first one- way bearing engaging with the first side of the rack; and a second one-way bearing disposed inside the first one-way bearing, the second one-way bearing engaging with the second side of the rack, wherein a diameter of the second one-way bearing is greater than a diameter of the first one-way bearing, whereby a rotational speed of the rotating shaft is controllable.
  • the one-way bearing may include a third one-way bearing fitted over the first end of the rotating shaft and a fourth one-way bearing fitted over the second end of the rotating shaft.
  • the converting unit may include: first and second movable brackets provided on the first end of the stationary bar so as to be movable in the longitudinal direction of the stationary bar, the first and second movable brackets being respectively disposed adjacent to the first and second ends of the rotating shaft, wherein the first end of the first upper link and the first end of the first lower link are coupled to the upper and lower surfaces of the first and second movable brackets so as to be rotatable; and first and second racks respectively provided on an inner surface of a lower plate of the first movable bracket and on an inner surface of an upper plate of the second movable bracket, the first and second racks respectively engaging with a lower portion of the third one-way bearing and an upper portion of the fourth one-way bearing.
  • the first and second racks linearly move along with the first and second movable brackets, whereby when the upper link unit and the lower link units are both extended and contracted, the linear motion of the first and second racks is transmitted to the rotating shaft through the third and fourth one-way bearings such that the rotating shaft rotates in a forward direction.
  • the one-way bearing may include: fifth and sixth one-way bearings fitted over the first or second end of the rotating shaft, the fifth and sixth one-way bearings having a same diameter; a seventh one-way bearing fitted over the rotating shaft between the fifth and sixth one-way bearings, the seventh one-way bearing having a diameter less than the diameter of the fifth or sixth one-way bearing; and an eighth one-way bearing fitted over the rotating shaft between the sixth one-way bearing and the first end of the stationary bar, the eighth one-way bearing having a same diameter as the diameter of the seventh one-way bearing, wherein the fifth, sixth, seventh and eighth one-way bearings are spaced apart from each other at regular intervals.
  • the converting unit may include: a movable bracket coupled to the first end of the stationary bar so as to be slidable in the longitudinal direction, the movable bracket being disposed adjacent to the first or second end of the rotating shaft, wherein the first end of the first upper link and the first end of the first lower link are respectively coupled to the upper and lower surfaces of the end of the movable bracket so as to be rotatable; first, second, third and fourth elastic members provided on inner surfaces of upper and lower plates of the movable bracket; third and fourth racks provided between lower ends of the first and second elastic members and upper portions of the sixth and eighth one-way bearings, the third and fourth racks engaging with the upper portions of the sixth and eighth oneway bearings by elastic force of the first and second elastic members, the third and fourth racks having different heights; fifth and sixth racks provided between upper ends of the third and fourth elastic members and lower portions of the fifth and seventh one-way bearings, the fifth and sixth racks engaging with the lower portions of the fifth and seventh one-way bearings by elastic force of the
  • the third, fourth, fifth and sixth racks linearly move along with the movable bracket, whereby when the upper link unit and the lower link unit are both extended and contracted, the linear motion of the third, fourth, fifth or sixth rack is transmitted to the rotating shaft through the fifth, sixth, seventh or eighth one-way bearing such that the rotating shaft rotate in a forward direction.
  • the present invention provides a bicycle including the motion converting apparatus, and front and rear wheels coupled to the vertical support and the rotating shaft of the motion converting apparatus.
  • the bicycle may further include a drive motor rotating the front or rear wheel; and a storage battery supplying power to the drive motor.
  • the present invention provides a training machine including the motion converting apparatus.
  • a motion converting apparatus In a motion converting apparatus according to the present invention, a user who sits on a seat which is provided on an upper link unit repeatedly conducts the motion of extending and contracting upper and lower link units using his/her weight and pedals which are provided on both sides of the lower link unit. Therefore, the user can more effectively conduct exercise for the waist and legs.
  • the motion converting apparatus may be constructed such that a rotary plate of the motion converter is rotated within a predetermined angular range by extension and contraction of the upper and lower link units.
  • the rotational motion of the rotary plate is transmitted to a rotating shaft through a one-way bearing such that the rotating shaft is rotated in a forward direction when the upper and lower link units are extended or contracted. Therefore, the rotating shaft can be rotated in a forward direction when the upper and lower link units are extended or contracted.
  • the motion converter can more easily convert rotational motion generated by the extension and contraction of the upper and lower link units into rotational motion.
  • the motion converting apparatus may be constructed such that when the upper and lower link units are extended and contracted, a rack of a converting unit linearly moves in the longitudinal direction along with a movable bracket which is slidably coupled to a first end of a stationary bar at a position adjacent to a first or second end of the rotating shaft.
  • the linear motion of the rack is transmitted to the rotating shaft through the one-way bearing such that when the upper and lower link units are extended or contracted, the rotating shaft can rotate in a forward direction.
  • the rotating shaft can be more easily rotated in a forward direction when the upper and lower link units are extended or contracted.
  • the motion converter can more easily convert the linear motion of the rack generated by extending and contracting the upper and lower link units into rotational motion of the rotating shaft.
  • the motion converting apparatus of the present invention may be constructed such that the rack of the converting unit is movable on the inner surface of the upper or lower plate of the movable bracket in the lateral direction of the movable bracket. In this case, when necessary, the user may separate the rack from the one-way bearing and reversely rotate the rotating shaft which is coupled to a rear wheel.
  • the motion converting apparatus of the present invention may be constructed such that the height of a first side of the rack is higher than that of a second side thereof and the rack is movable in the lateral direction on the inner surface of the upper or lower plate of the movable bracket to engage with one of first and second one-way bearings which are fitted over one end of the rotating shaft and have different diameters. Therefore, the rotational speed of the rotating shaft can be easily controlled.
  • the motion converting apparatus of the present invention may be constructed such that when the upper and lower link units are extended and contracted, first and second racks of the converting unit linearly move in the longitudinal direction along with first and second movable brackets which are slidably coupled to the first end of the stationary bar at positions adjacent to both ends of the rotating shaft.
  • the linear motion of the first and second racks is transmitted to the rotating shaft through third and fourth one-way bearings such that when the upper and lower link units are not only extended but also contracted, the rotating shaft can rotate in a forward direction.
  • the rotating shaft can be more easily rotated in a forward direction when the upper and lower link units are extended and contracted.
  • the motion converting apparatus of the present invention may be constructed such that fifth, sixth, seventh and eighth one-way bearings are fitted over the first or second end of the rotating shaft, and third and fourth racks of the converting unit engage with the upper portions of the sixth and eighth one-way bearings and fifth and sixth racks engage with the lower portions of the fifth and seventh one-way bearings.
  • the third, fourth, fifth and sixth racks linearly move along with the movable bracket which is coupled to the first end of the stationary bar at a position adjacent to the corresponding end of the rotating shaft so as to be slidable with respect to the stationary bar in the longitudinal direction.
  • the linear motion of the third, fourth, fifth and sixth racks is transmitted to the rotating shaft through the fifth, sixth, seventh and eighth one-way bearings.
  • the rotating shaft can rotate in a forward direction. Therefore, the user can more easily rotate the rotating shaft in a forward direction in such a way as to repeatedly conduct the operation of extending and contracting the upper and lower link units.
  • the rotational speed of the rotating shaft can be more easily controlled using first and second lateral movable blocks.
  • a bicycle which can move forwards or backwards can be provided by respectively coupling front and rear wheels to the vertical support and the rotating shafts of the motion converting apparatus.
  • the user can exercise his/her waist and legs while advancing the bicycle.
  • the bicycle having the motion converting apparatus may be provided with a drive motor which can automatically rotate the front or rear wheel.
  • the user who rides the bicycle can conveniently move without conducting the operation of extending and contracting the upper and lower link units.
  • the present invention can provide a training machine, such as an indoor training cycle, using the motion converting apparatus.
  • the user can more effectively conduct exercise for his/her waist and legs in such a way as to adjust the rotating load of the rotating shaft.
  • FIG. 1 is a perspective view illustrating a motion converting apparatus, according to a first embodiment of the present invention
  • FIGS. 2 and 3 are side views illustrating the operation of extending and contracting upper and lower link units of the motion converting apparatus of FIG. 1 ;
  • FIG. 4 is a perspective view illustrating a motion converting apparatus, according to a second embodiment of the present invention.
  • FIG. 5 is a sectional view taken along the line A-A of FIG. 4;
  • FIGS. 6 and 7 are side views illustrating the operation of extending and contracting upper and lower link units of the motion converting apparatus of FIG. 4;
  • FIGS. 8 and 9 are sectional views showing the operation of sliding a rack of FIG. 5 in a movable bracket in the lateral direction;
  • FIG. 10 is a perspective view showing a converting unit which is provided on both sides of a rotating shaft, according to a modification of the present invention.
  • FIG. 11 is a sectional view taken along the line B-B of FIG. 10;
  • FIG. 12 is a view illustrating a converting unit having lateral movable blocks which are movable in the lateral direction, according to another modification of the present invention.
  • FIGS. 13 and 14 are perspective views showing bicycles having the motion converting apparatuses according to the present invention.
  • FIGS. 15 and 16 are perspective views showing training machines having the motion converting apparatuses according to the present invention. Best Mode for Carrying out the Invention
  • FIG. 1 is a perspective view illustrating a motion converting apparatus 3, according to a first embodiment of the present invention.
  • the motion converting apparatus 3 includes an upper link unit 10, a lower link unit 30, a handle 50, a rotating shaft 90 and a motion converter 70.
  • the upper link unit 10 is extended and contracted by a user.
  • the upper link unit 10 includes a first upper link 101 of which a second end is rotated upwards and downwards around a first end thereof, and a second upper link 107 which is rotatably coupled at a first end thereof to the second end of the first upper link 101 such that the first end of the second upper link 107 can be rotated around the second end thereof upwards and downwards in conjunction with the second end of the first upper link 101.
  • a seat 103 which allows the user to sit thereon is provided on one selected from the first and second upper links 101 and 107.
  • the seat 103 can be provided on the second upper link 107.
  • a support shaft (105 of FIG. 2) which is provided under the seat 103 is typically threaded into one selected from among threaded holes 109 which are formed in the second upper link 107 at positions spaced apart from each other at regular intervals.
  • the lower link unit 30 is also extended and contracted by the user in the same manner as that of the upper link unit 10 and disposed under the upper link unit 10, as shown in FIG. 1.
  • the lower link unit 30 includes a first lower link 301 and a second lower link 303.
  • the first lower link 301 is rotatably coupled at a first end thereof to the first end of the first upper link 101 such that a second end of the first lower link 301 is rotatable around the first end thereof.
  • the second lower link 303 is rotatably coupled at a second end thereof to the second end of the second upper link 107 and rotatably coupled at a first end thereof to the second end of the first lower link 301, so that the first end of the second lower link 303 is rotated around the second end thereof upwards and downwards in conjunction with the second end of the first lower link 301.
  • Pedals 305 which allow the user to put his/her feet thereon are fastened to both sides of one selected from the first and second lower links 301 and 303.
  • the handle 50 is held by both hands of the user who sits on the seat 103.
  • the handle 50 is provided on an upper end of a vertical support 501 which is provided adjacent both to the second end of the second upper link 107 of the upper link unit 10 and to the second end of the second lower link 303 of the lower link unit 30.
  • the vertical support 501 is rotatably inserted into an end of an extension bar 503 which extends a predetermined length from the second end of the second upper link 107.
  • the motion converter 70 converts angular motion or linear motion generated by extending and contracting the upper and lower link units 10 and 30 into rotational motion.
  • the motion converter 70 is provided on the left or right sides of the upper link unit 10 and the lower link unit 30 or on both sides thereof and converts the angular motion generated by extending and contracting the upper and lower link units 10 and 30 into rotational motion.
  • the motion converter 70 may be coupled to the first ends of the upper and lower link units 10 and 30 and convert the linear motion generated by extending and contracting the upper and lower link units 10 and 30 into rotational motion. For the sake of convenience of explanation, this will be described in detail later.
  • the rotating shaft 90 is rotated by the rotational motion created by the converting operation of the motion converter 70.
  • the rotating shaft 90 is rotatably coupled both to the first end of the first upper link 101 of the upper link unit 10 and to the first end of the first lower link 301 of the lower link unit 30.
  • the rotating shaft 90 may be disposed at a position adjacent both to the first end of the first upper link 101 of the upper link unit 10 and to the first end of the first lower link 301 of the lower link unit 30.
  • a one-way bearing 901 which engages with the motion converter 70 is fitted over the rotating shaft 90 at a left or right side based on the upper and lower link units 10 and 30 or at each of opposite sides of the upper and lower link units 10 and 30.
  • the one-way bearing 901 is a shaft coupling having a structure capable of transmitting power only in one direction and is also called a one way clutch.
  • the oneway bearing 901 converts reciprocating rotational motion (between a rack and a pinion or a crank and a lever) into one-way rotational motion and prevents reverse rotation and undesirable rotation.
  • the one-way bearing 901 is a well known technique which can be easily implemented by those skilled in the art; therefore further explanation will be omitted.
  • FIGS. 2 and 3 are side views illustrating the operation of extending and contracting the upper and lower link units 10 and 30 of FIG. 1.
  • the motion converter 70 includes a movable bar
  • the movable bar 701 is rotatably coupled at the lower end thereof to the left or right side of the first lower link 301 such that the upper end thereof is rotatable around the lower end thereof.
  • the rotary plate 705 is rotatably coupled at the central portion thereof to the left or right side of the first upper link 101.
  • a first end of the rotary plate 705 engages with the one-way bearing 901 which is fitted over the rotating shaft 90.
  • a connection bar 703 extends from a second end of the rotary plate 705. The connection bar 703 is rotatably coupled to the upper end of the movable bar 701.
  • the rotary plate 705 of the motion converter 70 rotates in the vertical direction depending on the extension and contraction of the upper and lower link units 10 and 30.
  • the rotational force of the rotary plate 705 is transmitted to the rotating shaft 90 through the one-way bearing 901 such that when the upper and lower link units 10 and 30 are extended or contracted, the rotating shaft 90 can be rotated in a forward direction. Due to the above-mentioned structure, the rotating shaft 90 can be more easily rotated in a forward direction when the upper and lower link units 10 and 30 are extended or contracted.
  • the motion converter 70 can more easily convert the angular motion of the upper and lower link units 10 and 30 into rotational motion of the rotating shaft 90.
  • FIG. 4 is a perspective view illustrating a motion converting apparatus 3, according to a second embodiment of the present invention.
  • FIG. 5 is a sectional view taken along the line A-A of FIG. 4.
  • the motion converting apparatus 3 includes an upper link unit 10, a lower link unit 30, a handle 50, a motion converter 70 and a rotating shaft 90.
  • the handle 50 is provided on an upper end of a vertical support 501 which is coupled to a second end of a stationary bar 710 so as to be rotatable to the left and the right, such that the handle 50 is disposed adjacent both to a second end of a second upper link 107 of the upper link unit 10 and to a second end of a second lower link 303 of the lower link unit 30.
  • the motion converter 70 includes the stationary bar 710 and a converting unit 730.
  • the second end of the second upper link 107 and the second end of the second lower link 303 are respectively coupled to the upper and lower surfaces of the second end of the stationary bar 710 so as to be rotatable.
  • the rotating shaft 90 is rotatably coupled to a first end of the stationary bar 710 such that the rotating shaft 90 is disposed at a position adjacent both to a first end of a first upper link 101 and to a first end of a first lower link 301.
  • the converting unit 730 includes a movable bracket 731 and a rack 733.
  • the movable bracket 731 is coupled to the first end of the stationary bar 710 so as to be movable in the longitudinal direction and is disposed adjacent to a first or second end of the rotating shaft 90.
  • the first end of the first upper link 101 and the first end of the first lower link 301 are respectively coupled to upper and lower surfaces of one end of the movable bracket 731 so as to be rotatable.
  • the rack 733 is disposed on the inner surface of the upper or lower plate of the movable bracket 731 and engages with a one-way bearing 901 which is fitted over the first or second end of the rotating shaft 90.
  • Guide depressions 711 are formed in the upper and lower surfaces of the first end of the stationary bar 710. Each guide depression 711 has a predetermined depth and extends a predetermined length in the longitudinal direction of the stationary bar 710. Movable wheels 735 which move along the guide depressions 711 are rotatably coupled to both ends of the movable bracket 731 of the converting unit 730.
  • FIGS. 6 and 7 are side views illustrating the operation of extending and contracting the upper and lower link units 10 and 30 of FIG. 4.
  • the rack 733 of the converting unit 730 linearly moves in the longitudinal direction along with the movable bracket 731 which is slidably coupled to the first end of the stationary bar 710 at a position adjacent to the first or second end of the rotating shaft 90.
  • the linear motion of the rack 733 is transmitted to the rotating shaft 90 through the one-way bearing 901 such that when the upper link unit 10 and the lower link unit 30 are extended or contracted, the rotating shaft 90 can rotate in a forward direction. Due to the above-mentioned structure, the rotating shaft 90 can be more easily rotated in a forward direction when the upper and lower link units 10 and 30 are extended or contracted.
  • the motion converter 70 can more easily convert the linear motion of the rack 733 generated by extending and contracting the upper and lower link units 10 and 30 into rotational motion of the rotating shaft 90.
  • FIGS. 8 and 9 are sectional views showing the operation of sliding the rack 733 of
  • FIG. 5 in the movable bracket 731 in the lateral direction.
  • the rack 733 of the converting unit 730 is provided on the inner surface of the upper or lower plate of the movable bracket 731 so as to be movable in the lateral direction.
  • the rack 733 is constructed such that it can selectively engage with the oneway bearing 901 which is rotatably fitted over the first or second end of the rotating shaft 90.
  • the rack 733 of the converting unit 730 may be constructed such that it can be moved in the lateral direction in the movable bracket 731 by a wire 110 and an elastic member 130.
  • the wire 110 is coupled at a first end thereof to a first surface of the rack 733 and connected at a second end thereof to a separate control grip (not shown) which is provided on the handle 50.
  • the elastic member 130 comprises a spring or the like which is horizontally provided on the upper or lower plate of the movable bracket 731.
  • the elastic member 130 is coupled at a first end thereof to a first surface of the rack 733 and coupled at a second end thereof to the inner surface of the movable bracket 731.
  • the rack 733 which is provided on the inner surface of the upper or lower plate of the movable bracket 731 so as to be movable in the lateral direction may be constructed such that a height hi of a first side of the rack 733 is higher than a height h2 of a second side thereof and a depression 733a having a predetermined depth is formed between the first and second sides of the rack 733 and extends a predetermined length in the longitudinal direction of the rack 733.
  • the one-way bearing 901 which is fitted over the first or second end of the rotating shaft 90 comprises a first one-way bearing 910 which engages with the first side of the rack 733, and a second one-way bearing 911 which is disposed inside the first one-way bearing 910 and engages with the second side of the rack 733.
  • the diameter of the second one-way bearing 911 is greater than that of the first one-way bearing 910.
  • the first or second side of the rack 733 may engage with the first or second one-way bearing 910 or 911, or the rack 733 may be separated from the one-way bearing 901, as shown in FIGS. 9a, 9b and 9c.
  • the rotational speed t2 of the rotating shaft 90 when the second side of the rack 733 engages with the second one-way bearing 911 is less than the rotational speed tl of the rotating shaft 90 when the first side of the rack 733 engages with the first one-way bearing 910 (tl > t2).
  • the rack 733 is constructed such that the height hi of the first side thereof is higher than the height h2 of the second side thereof.
  • the rack 733 is moved in the lateral direction on the upper or lower plate of the movable bracket 731 and engages with one of the first and second one-way bearings 910 and 911 which are fitted over the first or second end of the rotating shaft 90 and have different diameters. Therefore, the rotational speed of the rotating shaft 90 can be easily controlled.
  • FIG. 10 is a perspective view illustrating a converting unit 730 provided on both sides of a rotating shaft 90 according to a modification of the present invention.
  • FIG. 11 is a sectional view taken along the line B-B of FIG. 10.
  • the converting unit 730 may include first and second movable brackets 735 and 737 and first and second racks 750 and 751.
  • the first and second movable brackets 735 and 737 are provided on the first end of the stationary bar 710 so as to be movable in the longitudinal direction of the stationary bar 710 and are respectively disposed adjacent to both ends of the rotating shaft 90.
  • the first end of the first upper link 101 and the first end of the first lower link 301 are coupled to the upper and lower surfaces of the first and second movable brackets 735 and 737 so as to be rotatable.
  • the first and second racks 750 and 751 are respectively provided on the inner surface of the lower plate of the first movable bracket 735 and on the inner surface of the upper plate of the second movable bracket 737. Furthermore, the first and second racks 750 and 751 respectively engage with a lower portion of a third oneway bearing 930 which is fitted over the first end of the rotating shaft 90 and an upper portion of a fourth one-way bearing 931 which is fitted over the second end of the rotating shaft 90.
  • the first and second racks 750 and 751 linearly move along with the first and second movable brackets 735 and 737.
  • the rotating shaft 90 can rotate in a forward direction.
  • first and second racks 750 and 751 can be respectively moved in the lateral direction on the inner surface of the lower plate of the first movable bracket 735 and on the inner surface of the upper plate of the second movable bracket 737 by wires 110 and elastic members 130, in the same manner as that of the structure illustrated in FIG. 8.
  • the first and second racks 750 and 751 of the converting unit 730 linearly move in the longitudinal direction along with the first and second movable brackets 735 and 737 which are slidably coupled to the first end of the stationary bar 710 at positions adjacent to both ends of the rotating shaft 90.
  • the linear motion of the first and second racks 750 and 751 is transmitted to the rotating shaft 90 through the third and fourth one-way bearings 930 and 931 such that when the upper link unit 10 and the lower link unit 30 are not only extended but also contracted, the rotating shaft 90 can rotate in a forward direction. Due to the above-mentioned structure, the rotating shaft 90 can be more easily rotated in a forward direction when the upper and lower link units 10 and 30 are extended and contracted.
  • FIG. 12 is a view illustrating a converting unit 730 having lateral movable blocks
  • fifth and sixth one-way bearings 950 and 951 having the same diameter are fitted over a first or second end of the rotating shaft 90.
  • a seventh oneway bearing 953 having a diameter less than that of the fifth and sixth one-way bearings 950 and 951 is fitted over the rotating shaft 90 between the fifth and sixth one-way bearings 950 and 951.
  • An eighth one-way bearing 955 having the same diameter as that of the seventh one-way bearing 953 is fitted over the rotating shaft 90 between the sixth one-way bearing 951 and the first end of the stationary bar 710.
  • the fifth, sixth, seventh and eighth one-way bearings 950, 951, 953 and 955 are spaced apart from each other at regular intervals.
  • the converting unit 730 includes a movable bracket 731; first, second, third and fourth elastic members 151, 153, 155 and 157; third, fourth, fifth and sixth racks 770, 771, 790 and 791; and first and second lateral movable blocks 793 and 795.
  • the movable bracket 731 is coupled to the first end of the stationary bar 710 so as to be slidable in the longitudinal direction and disposed adjacent to the first or second end of the rotating shaft 90.
  • the first end of the first upper link 101 and the first end of the first lower link 301 are respectively rotatably coupled to the upper and lower surfaces of the movable bracket 731.
  • the first, second, third and fourth elastic members 151, 153, 155 and 157 are provided on the inner surfaces of the upper and lower plates of the movable bracket 731.
  • the third and fourth racks 770 and 771 are provided between the lower ends of the first and second elastic members 151 and 153 and the sixth and eighth one-way bearings 951 and 955.
  • the third and fourth racks 770 and 771 are engaged with the upper portions of the sixth and eighth one-way bearings 951 and 955 by the elastic force of the first and second elastic members 151 and 153.
  • the third and fourth racks 770 and 771 have different heights.
  • the fifth and sixth racks 790 and 791 are provided between the upper ends of the third and fourth elastic members 155 and 157 and the fifth and seventh one-way bearings 950 and 953.
  • the fifth and sixth racks 790 and 791 are engaged with the lower portions of the fifth and seventh one-way bearings 950 and 953 by the elastic force of the third and fourth elastic members 155 and 157.
  • the fifth and sixth racks 790 and 791 have different heights.
  • the first lateral movable block 793 is provided between the upper ends of the third and fourth racks 770 and 771 and the inner surface of the upper plate of the movable bracket 731 so as to be movable in the lateral direction.
  • the first lateral movable block 793 controls the strength with which the third or fourth rack 770 or 771 engages with the sixth or eighth one-way bearing 951 or 955.
  • the second lateral movable block 795 is provided between the lower ends of the fifth and sixth racks 790 and 791 and the inner surface of the lower plate of the movable bracket 731 so as to be movable in the lateral direction.
  • the second lateral movable block 795 controls the strength with which the fifth or sixth rack 790 or 791 engages with the fifth or seventh one-way bearing 950 or 953.
  • the linear motion of the third, fourth, fifth or sixth rack 770, 771, 790 or 791 can be transmitted to the rotating shaft 90 through the fifth, sixth, seventh or eighth one-way bearing 950, 951, 953 or 955 such that the rotating shaft 90 can continuously rotate in a forward direction.
  • the third, fourth, fifth and sixth racks 770, 771, 790 and 791 linearly move along with the movable bracket 731 which is coupled to the first end of the stationary bar 710 at a position adjacent to the corresponding end of the rotating shaft 90 so as to be slidable with respect to the stationary bar 710 in the longitudinal direction.
  • the linear motion of the third, fourth, fifth and sixth racks 770, 771, 790 and 791 is transmitted to the rotating shaft 90 through the fifth, sixth, seventh and eighth one-way bearing 950, 951, 953 and 955.
  • the rotating shaft 90 can rotate in a forward direction. Therefore, the user can more easily rotate the rotating shaft 90 in a forward direction in such a way as to repeatedly conduct the operation of extending and contracting the upper link unit 10 and the lower link unit 30.
  • the rotational speed of the rotating shaft 90 can be more easily controlled using the first and second lateral movable blocks 793 and 795.
  • the first and second lateral movable blocks 793 and 795 can be moved in the lateral direction in the movable bracket 731 by wires 150 and elastic members 170.
  • the wires 150 are coupled at first ends thereof to first surfaces of the corresponding first and second racks 793 and 795 and connected at second ends thereof to a separate control grip (not shown) which is provided on the handle 50.
  • Each elastic member 170 comprises a spring or the like which is coupled at a first end thereof to a vertical protrusion which is provided on each of the upper and lower plate of the movable bracket 731.
  • the elastic member 170 is coupled at a second end thereof to a second side of the corresponding lateral movable block 793, 795.
  • the fourth and sixth racks 771 and 791 are in the state of being engaged with the upper portion of the eighth one-way bearing 955 and the lower portion of the seventh one-way bearing 953 with relatively small force merely using the elastic force of the second and fourth elastic members 153 and 157. Therefore, when the third and fifth racks 770 and 790 linearly move along with the movable bracket 731, the fourth and sixth racks 771 and 791 are moved upwards and downwards while crossing over the eighth and seventh one-way bearings 955 and 953.
  • the user sits on the seat 103 which is provided on the upper link unit 10 and thereafter can repeatedly conduct the motion of extending and contracting the upper and lower link units 10 and 30 using his/her weight and the pedals 305 which are provided on both sides of the lower link unit 30. Hence, the user can effectively conduct exercise for the waist and legs.
  • FIGS. 13 and 14 are perspective views showing bicycles 5 having the motion converting apparatuses 3 according to the present invention.
  • a front wheel 51 can be rotatably coupled to the lower end of the vertical support 501, and a rear wheel 53 can be fitted over the medial portion of the rotating shaft 90 or each of both ends thereof.
  • the present invention provides the bicycles 5 which can be moved forwards or backwards by the user.
  • the bicycle 5 which is able to move forwards or backwards can be provided by coupling the front wheel 51 and the rear wheel 53 to the vertical support 501 and the rotating shaft 90 of the motion converting apparatus 3.
  • the user can conduct exercises for the waist and legs while moving the bicycle 5 forwards.
  • the bicycle 5 of the present invention may further include a drive motor which reversibly rotates the front wheel 51 or the rear wheel 53 under the control of a control unit, and a storage battery which supplies power to the drive motor.
  • the drive motor is coupled to a shaft 510 of the front wheel 51 which is provided in the lower end of the vertical support 501 or the rotating shaft 90 to which the rear wheel 53 is fastened.
  • a well known hub motor can be used as the drive motor, but it is not limited to the hub motor.
  • the storage battery can be removably fastened to the stationary bar 710 by bolting.
  • FIGS. 15 and 16 are perspective views showing training machines 7 having the motion converting apparatuses 3 according to the present invention.
  • the present invention may provide a training machine 7, such as an indoor training cycle, using the motion converting apparatus 3 according to the first or second embodiment.
  • the motion converting apparatus 3 may be fastened to a separate base plate 300 which is placed on the support ground.
  • a load application device may be provided on the base plate 300 to control a load applied to the rotating shaft 90 in such a manner as to apply frictional force to the rotating shaft 90.
  • the load application device can be realized by a weight application method using gravity, a hydraulic cylinder using resistance of viscous fluid, a brake which applies frictional force to a wheel, or a magnetic method using a principle in which when a magnetic body is close to a conductor that is rotating, an induced current is generated. This is a well known technique which can be easily implemented by those skilled in the art, therefore further explanation will be omitted.
  • the user can more effectively conduct exercise for the waist and legs in such a way as to adjust the rotating load of the rotating shaft 90.
  • a user sitting on a seat which is provided on an upper link unit repeatedly conducts the motion of extending and contracting upper and lower link units using his/her weight and pedals which are provided on both sides of the lower link unit. Therefore, the user can more effectively conduct exercise for the waist and legs.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Biophysics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Rehabilitation Tools (AREA)
  • Transmission Devices (AREA)
PCT/KR2009/006080 2008-10-22 2009-10-21 Motion converting apparatus and bicycle or training machine having the same WO2010047521A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200990100011XU CN201988108U (zh) 2008-10-22 2009-10-21 运动转换装置以及具有该装置的脚踏车和训练器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0103371 2008-10-22
KR1020080103371A KR100889925B1 (ko) 2008-10-22 2008-10-22 운동변환장치 및 이를 구비한 자전거 또는 트레이닝 기구

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WO2010047521A3 WO2010047521A3 (en) 2010-07-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220355896A1 (en) * 2019-10-25 2022-11-10 Sunny Wheel Industrial Co., Ltd. Reciprocating mechanism, bicycle, and method of achieving reciprocating motion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107600275B (zh) * 2017-10-16 2023-08-04 张晓铮 一种变速驱动机构

Citations (3)

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Publication number Priority date Publication date Assignee Title
US4753435A (en) * 1986-02-13 1988-06-28 Teodoro Carnielli Handle-bar motion unit for exercise bicycles
US20020077221A1 (en) * 2000-12-15 2002-06-20 Dalebout William T. Spinning exercise cycle with lateral movement
US20050239608A1 (en) * 2004-04-22 2005-10-27 Banyat Somwong Elevating exercise bicycle

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Publication number Priority date Publication date Assignee Title
KR200213014Y1 (ko) * 1998-12-18 2001-04-02 임정수 마승식 자전거

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4753435A (en) * 1986-02-13 1988-06-28 Teodoro Carnielli Handle-bar motion unit for exercise bicycles
US20020077221A1 (en) * 2000-12-15 2002-06-20 Dalebout William T. Spinning exercise cycle with lateral movement
US20050239608A1 (en) * 2004-04-22 2005-10-27 Banyat Somwong Elevating exercise bicycle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220355896A1 (en) * 2019-10-25 2022-11-10 Sunny Wheel Industrial Co., Ltd. Reciprocating mechanism, bicycle, and method of achieving reciprocating motion
US11731729B2 (en) * 2019-10-25 2023-08-22 Sunny Wheel Industrial Co., Ltd. Reciprocating mechanism, bicycle, and method of achieving reciprocating motion

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WO2010047521A3 (en) 2010-07-29
CN201988108U (zh) 2011-09-28

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