WO2008091106A1 - Bi-directional pedaling exercise bicycle - Google Patents

Bi-directional pedaling exercise bicycle Download PDF

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Publication number
WO2008091106A1
WO2008091106A1 PCT/KR2008/000407 KR2008000407W WO2008091106A1 WO 2008091106 A1 WO2008091106 A1 WO 2008091106A1 KR 2008000407 W KR2008000407 W KR 2008000407W WO 2008091106 A1 WO2008091106 A1 WO 2008091106A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
pulley
belt
reversing
output
Prior art date
Application number
PCT/KR2008/000407
Other languages
French (fr)
Inventor
Tae-Jin Jung
Hyuk Yoo
Original Assignee
Mbi Co., Ltd.
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 Mbi Co., Ltd. filed Critical Mbi Co., Ltd.
Publication of WO2008091106A1 publication Critical patent/WO2008091106A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
    • A63B22/0005—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms with particular movement of the arms provided by handles moving otherwise than pivoting about a horizontal axis parallel to the body-symmetrical-plane
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
    • A63B22/0007—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms by alternatively exercising arms or legs, e.g. with a single set of support elements driven either by the upper or the lower limbs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0002—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms
    • A63B22/001—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements involving an exercising of arms by simultaneously exercising arms and legs, e.g. diagonally in anti-phase
    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A63B2022/0635—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers specially adapted for a particular use
    • A63B2022/0658—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers specially adapted for a particular use for cycling with a group of people, e.g. spinning classes

Definitions

  • the present invention relates to a bi-directional pedaling exercise bicycle.
  • Most exercise bicycles are configured to have a pair of pedals mounted to a body such that a driving force is transmitted from a power transfer device inside the shaft coupled to the pedals to a load part mounted at the rear wheel.
  • the power transfer device may be provided with various transmission means so as to adjust the strength of the driving force to be transmitted to the load part.
  • the exercise bicycle may be provided with a display device for showing the time and distance according to the number of revolutions, the consumed calories and so on.
  • the present invention has been made to solve the above problems occurring in the prior art, and it is an object of the present invention to provide a bidirectional pedaling exercise bicycle that includes an upper or lower pedal rotatable by a rider's legs or arms, so that each of the upper and lower pedals can be rotated bi- directionally, i.e., either forward or rearward.
  • a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals; an output belt pulley fitted around the first shaft so as to allow a load part to be driven in a forward direction while being restrained to the first shaft by means of a one-way clutch bearing CB when the first shaft is rotated either forward or rearward; a first shaft-reversing belt pulley 116 fitted around the first shaft 111 and restrained to the first shaft by means of a reverse oneway clutch bearing RCB; a third shaft pulley 133 connected to the first shaft-reversing belt pulley 116 by means of a double belt DB and a second shaft reverse-transferring belt pulley 123 adapted to abut against the outer surface of the double belt DB; and a first shaft reverse-transferring belt pulley 117 fitted around the first shaft 111 so as to be connected to the second shaft reverse-transferring belt pulle
  • a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of arm-exercising pedals; a first shaft belt pulley fitted around the first shaft and having an upper limb part belt output pulley mounted thereon so as to be connected to a load part while being restrained to the first shaft by means of a one-way clutch bearing CB; a second shaft engaged with the first shaft by means of gears; and a second shaft belt pulley fitted around the second shaft and connected to the first shaft belt pulley by means of a normal belt NB while being restrained to the second shaft by means of a one-way clutch bearing CB.
  • a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals and having an output pulley fitted therearound; a third shaft having a load part and first and second pulleys for the third shaft fitted therearound, each of the first and second pulleys for the third shaft having a one-way clutch bearing CB mounted therein; and a second shaft disposed between the first shaft and the third shaft and having a second shaft-reversing pulley fitted therearound, wherein the output pulley, the first pulley for the third shaft, and the second shaft-reversing pulley are connected to one another such that the output pulley and the first pulley for the third shaft abut against the inner surface of a double belt DB and the second shaft-reversing pulley abuts against the outer surface of the double belt DB, and the second pulley for the third shaft and the second shaft-
  • a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals and having first and second output pulleys fitted around both sides thereof; a second shaft having a load part fitted therearound and first and second reversing pulleys for the second shaft fitted therearound at one side of the load part, each of the first and second reversing pulleys for the second shaft having a one-way clutch bearing CB mounted therein; and a third shaft disposed under the second shaft and having a third shaft pulley fitted therearound, wherein the first reversing pulley for the second shaft disposed at the left side of the second shaft and the first output pulley are connected to each other by means of a normal belt, and wherein the second output pulley, the third shaft pulley, and the second reversing pulley for the second shaft disposed at the right side of the second shaft are connected to one
  • a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals and having an output pulley fitted therearound; a second shaft having a load part fitted therearound and first and second reversing pulleys for the second shaft fitted therearound at both sides of the load part, each of the first and second reversing pulleys for the second shaft having a one-way clutch bearing CB mounted therein; and a third shaft disposed under the second shaft and having a third shaft pulley fitted therearound, wherein the output pulley, the third shaft pulley, and the first reversing pulley for the second shaft are connected to one another such that the output pulley and the third shaft pulley abut against the inner surface of a double belt and the first reversing pulley for the second shaft abuts against the outer surface of the double belt, and the second reversing pull
  • the first shaft reverse-transferring belt pulley or the output pulley is provided with an external input pulley belt-connected to the upper limb part, such that the exercise bicycle of this invention includes both the upper limb part and the lower limb part.
  • the bi-directional pedaling exercise bicycle can be driven forward upon a forward or reverse rotation of the upper or lower limb part, thereby preventing a rider's inharmonious muscular development which may occur by pedaling only one direction.
  • FIG.1 is a cross-sectional view showing the whole operating structure of a bidirectional pedaling exercise bicycle
  • FIG.2 is a cross-sectional view showing the construction of a lower limb part in
  • FIG.l is a diagrammatic representation of FIG. 1
  • FIG.3 is a side view of FIG.2, showing a locking state of the first to third shafts to a double belt;
  • FIG.4 is a cross-sectional view showing the construction of an upper limb part in
  • FIG.l is a diagrammatic representation of FIG. 1
  • FIGS.5 to 7 are cross-sectional views showing other examples of the lower limb part.
  • FIG.1 is a cross-sectional view showing the whole operating structure of a bidirectional pedaling exercise bicycle.
  • the bi-directional pedaling exercise bicycle basically includes a lower limb part 110, an upper limb part 150, and a load part 190.
  • the lower limb part 110 and the upper limb part 150 are provided with conventional crank arms and pedals (not shown) so as to drive the lower limb part 110 and the upper limb part 150.
  • FIG.2 is a cross-sectional view showing the inner construction of the lower limb part in FIG.1.
  • the lower limb part 110 includes a first shaft 111, a second shaft
  • the first shaft 111 is axially coupled to a pair of leg-exercising pedals (not shown) and serves as a driving shaft rotating by a rider's foot pedaling action.
  • the first shaft 111 has housings 112a and 112b and bearings mounted on both sides thereof, and the housings 112a and 112b and bearings serve to support the first shaft 111.
  • An output belt pulley 113 is fitted around the first shaft 111 near the inside of one side housing 112a so as to be connected to the load part 190 by means of a normal belt NB.
  • the output belt pulley 113 has a one-way clutch bearing CB mounted therein, such that when the first shaft 111 is rotated forward, the output belt pulley 113 is restrained and then connected to the load part 190.
  • the output belt pulley 113 is not restrained.
  • a first shaft-reversing belt pulley 116 is fitted around the first shaft 111 inside of the other housing 112b.
  • the first shaft-reversing belt pulley 116 has a reverse one-way clutch bearing RCB mounted therein, such that when the first shaft 111 is rotated rearward, the first shaft-reversing belt pulley 116 is restrained. On the other hand, when the first shaft 111 is rotated forward, the first shaft-reversing belt pulley 116 is not restrained.
  • a first shaft reverse-transferring belt pulley 117 is fitted around the first shaft 111 at one side of the first shaft-reversing belt pulley 116. At this time, the first shaft reverse- transferring belt pulley 117 is extended longer than the first shaft-reversing belt pulley 116 so as to be coupled to the output belt pulley 113. In other words, an extension portion 114 is extended longer from the other side of the output belt pulley 113 so as to be formed integrally with the output belt pulley 113 such that the extension portion 114 is coupled to the other side of the first shaft reverse-transferring belt pulley 117.
  • a oneway clutch bearing CB is embedded between the first shaft reverse-transferring belt pulley 117 and the extension portion 114.
  • the first shaft reverse-transferring belt pulley 117 is provided with an external input pulley 180 adapted to receive the driving force of the upper limb part 150.
  • the second shaft 121 is disposed under the first shaft 111, and the third shaft 131 is under the second shaft 121.
  • the second shaft 121 and the third shaft 131 are supported by means of a single housing 122, and bearings are embedded between the housing 122 and the respective shafts 121 and 131.
  • the second shaft 121 has a second shaft reverse-transferring belt pulley 123 fitted therearound and the third shaft 131 has a third shaft pulley 133 fitted therearound, in a lower side direction of the first shaft- reversing belt pulley 116.
  • the second shaft reverse-transferring belt pulley 123 is extended to the lower side of the first shaft reverse-transferring belt pulley 117.
  • FIG.3 is a side view of FIG.l, showing a locking state of the lower limb part to a double belt.
  • the lower limb part 110 is provided with two types of belts, the first of which is a double belt DB, as shown in FIG.3.
  • the first shaft-reversing belt pulley 116, the second shaft reverse-transferring belt pulley 123 and the third shaft pulley 133 are connected to one another by means of the double belt.
  • the first shaft-reversing belt pulley 116 and the third shaft pulley 133 abut against the inner surface of the double belt DB, and the second shaft reverse-transferring belt pulley 123 abuts against the outer surface of the double belt DB.
  • the second type belt is a normal belt NB by which the second shaft reverse- transferring belt pulley 123 and the first shaft reverse-transferring belt pulley 117 are connected to each other.
  • FIG.4 is a cross-sectional view showing the inner construction of an upper limb part in FIG.l.
  • the upper limb part 150 includes a first shaft 151 and a second shaft 161.
  • the first shaft 151 is coupled to arm-exercising pedals (not shown) and serves as a driving shaft rotating by a rider's hand pedaling action.
  • the first shaft 151 has housings 152a and 152b and bearings mounted on both sides thereof, and the housings 152a and 152b and bearings serve to support the first shaft 151.
  • the first shaft 151 has a first shaft belt pulley 153 and a first shaft gear 156 fitted therearound.
  • the first shaft output belt pulley 153 has a one-way clutch bearing CB mounted therein, such that when the first shaft 151 is rotated forward, the first shaft output belt pulley 153 is restrained by means of the one-way clutch bearing CB and then is rotated forward. On the other hand, when the first shaft 151 is rotated rearward, the first shaft output belt pulley 153 is not restrained.
  • the first shaft belt pulley 153 has an upper limb part belt output pulley 154 extending to the upper side of the external input pulley 180 formed on the lower limb part, and the upper limb part belt output pulley 154 and the external input pulley 180 are coupled to each other by means of a normal belt NB so as to be connected to the load part 190.
  • the second shaft 161 is disposed above the first shaft 151 in parallel with the first shaft 151. In the same manner as the first shaft 151, the second shaft 161 is supported by means of housings 162a and 162b and bearings fitted along the outer peripheries of both ends thereof.
  • the second shaft 161 has a second shaft belt pulley 163 and a second shaft gear 166 fitted therearound, the second shaft belt pulley 163 being connected to the first shaft belt pulley 153 by means of a normal belt NB and the second shaft gear 166 being adapted to be geared with the first shaft gear 156.
  • the second shaft belt pulley 163 has a one-way clutch bearing CB embedded thereinto, such that only when the second shaft 161 is rotated forward, the second shaft belt pulley 163 is restrained by means of the one-way clutch bearing CB and then is rotated forward.
  • the normal belt NB and the double belt DB adopted in the preferred embodiment of the present invention may be used as a timing belt.
  • the exercise bicycle of the present invention is driven with only the lower limb part, it may further include other manners besides the above-mentioned manner.
  • FIGS.5 to 7 are cross-sectional views showing other examples of the lower limb part.
  • a lower limb part 210 basically includes a first shaft 211, a second shaft 221, and a third shaft 231.
  • the first shaft 211 is coupled to the pedals, and an output pulley 212 is fitted integrally around the first shaft 211.
  • a frame 213 is fitted around the first shaft 211 at a side of the output pulley 212.
  • the third shaft 231 is a shaft around which a load part 290 is fitted, and a first pulley
  • a second pulley 232b for the third shaft is fitted around the third shaft at a side surface of the first pulley 232a for the third shaft.
  • the first and second pulleys 232a and 232b for the third shaft are embedded with a one-way clutch bearing CB that are restrained when the third shaft is rotated in a forward rotation.
  • the second shaft 221 is disposed between the first shaft 211 and the third shaft 231, and a second shaft-reversing pulley 222 is fitted around the second shaft 221.
  • the second shaft-reversing pulley 222 is extended further axially so as to be connected to the second pulley 232b for the third shaft 231.
  • the output pulley 212, the second shaft-reversing pulley 222, and the first pulley 232a for the third shaft are coupled to one another by means of the double belt DB commonly fitted therearound, and the second pulley 232b for the third shaft and the second shaft-reversing pulley 222 are coupled to each other by means of a normal belt NB commonly fitted therearound, such that when the output pulley 212 is rotated forward, the first pulley 232a for the third shaft is restrained and the load part 290 is driven in a forward direction.
  • the first pulley 232a for the third shaft is not restrained and the second shaft- reversing pulley 222 is rotated in a forward direction.
  • the forward rotation of the second shaft-reversing pulley 222 allows the second pulley 232b for the third shaft to be rotated forward, such that the load part 290 is driven in a forward direction.
  • a lower limb part 310 basically includes a first shaft 311, a second shaft 321, and a third shaft 331.
  • the first shaft 211 has two output pulleys 312 fitted around both sides thereof, and a frame 313 is fitted around the first shaft 211 between the two output pulleys 312.
  • the second shaft 321 is a shaft around which a load part 390 is fitted and further has a left second shaft-reversing pulley 322a and a right second shaft-reversing pulley 322b fitted therearound at both sides of the load part 390.
  • the left second shaft-reversing pulley 322a and the right second shaft-reversing pulley 322b are embedded with a one-way clutch bearing CB that are restrained when the second shaft is rotated in a forward rotation.
  • the third shaft 331 is disposed under the right second shaft-reversing pulley 322b and has a third shaft pulley 332 fitted therearound.
  • the third shaft pulley 332, the right second shaft-reversing pulley 322b and the output pulley 312 are connected to one another by means of the double belt DB, such that even when the output pulley 312 is rotated rearward, the load part 390 is driven in the forward direction.
  • a lower limb part 410 basically includes a first shaft 411, a second shaft 421, and a third shaft 431.
  • the first shaft 411 has an output pulley 412 and a frame 413 fitted therearound.
  • the second shaft 421 has a load part 490 fitted therearound and further has first and second reversing pulleys 422a and 422b for the second shaft 421 fitted therearound at one side of the load part 490.
  • the first and second reversing pulleys 422a and 422b for the second shaft 421 are embedded with a one-way clutch bearing CB that is restrained when the second shaft 421 is rotated in a forward rotation.
  • the third shaft 431 is disposed under the second shaft 421 and has a third shaft pulley 432 fitted therearound, the third shaft pulley 432 having the same length as the added length of the first and second reversing pulleys 422a and 422b for the second shaft 421.
  • the output pulley 412 and the third shaft pulley 432 are connected to each other so as to abut against the inner surface of the double belt DB, and the first reversing pulley 422a for the second shaft 421 abuts against the inner surface of the double belt DB, thereby serving as a reverse belt.
  • the second reversing pulley 422b for the second shaft 421 and the third shaft pulley 432 are connected to each other by means of the normal belt NB.
  • 212, 312, and 412 may be provided with an external input pulley adapted to receive the power from the upper limb part so as to be operated in cooperation with the upper limb part.
  • the bi-directional pedaling exercise bicycle according to the present invention can be driven forward and rearward upon a forward or reverse rotation of the upper or lower limb part, thereby preventing a rider's inharmonious muscular development which may occur upon pedaling in only one direction with the rider's arms or legs.

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The present invention relates to a bi-directional pedaling exercise bicycle including: a first shaft axially coupled to a pair of arm-exercising pedals; a first shaft belt pulley fitted around the first shaft and having an upper limb part belt output pulley mounted thereon so as to be connected to a load part while being restrained to the first shaft by means of a one-way clutch bearing CB; a second shaft engaged with the first shaft by means of gears; and a second shaft belt pulley fitted around the second shaft and connected to the first shaft belt pulley by means of a normal belt NB while being restrained to the second shaft by means of a one-way clutch bearing CB.

Description

Description BI-DIRECTIONAL PEDALING EXERCISE BICYCLE
Technical Field
[1] The present invention relates to a bi-directional pedaling exercise bicycle.
Background Art
[2] Most exercise bicycles are configured to have a pair of pedals mounted to a body such that a driving force is transmitted from a power transfer device inside the shaft coupled to the pedals to a load part mounted at the rear wheel. The power transfer device may be provided with various transmission means so as to adjust the strength of the driving force to be transmitted to the load part. Also, the exercise bicycle may be provided with a display device for showing the time and distance according to the number of revolutions, the consumed calories and so on.
[3] However, such conventional exercise bicycles entail problems in that a load is applied in only one direction (i.e., forward direction), thereby resulting in unbalanced development of partial muscles used for a rider to pedal forward.
[4] Thus, riders using bicycles encounter problems in that they could not expect to have muscular development in harmony. Disclosure of Invention Technical Problem
[5] Accordingly, the present invention has been made to solve the above problems occurring in the prior art, and it is an object of the present invention to provide a bidirectional pedaling exercise bicycle that includes an upper or lower pedal rotatable by a rider's legs or arms, so that each of the upper and lower pedals can be rotated bi- directionally, i.e., either forward or rearward. Technical Solution
[6] To achieve the above object, according to an aspect of the present invention, there is provided a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals; an output belt pulley fitted around the first shaft so as to allow a load part to be driven in a forward direction while being restrained to the first shaft by means of a one-way clutch bearing CB when the first shaft is rotated either forward or rearward; a first shaft-reversing belt pulley 116 fitted around the first shaft 111 and restrained to the first shaft by means of a reverse oneway clutch bearing RCB; a third shaft pulley 133 connected to the first shaft-reversing belt pulley 116 by means of a double belt DB and a second shaft reverse-transferring belt pulley 123 adapted to abut against the outer surface of the double belt DB; and a first shaft reverse-transferring belt pulley 117 fitted around the first shaft 111 so as to be connected to the second shaft reverse-transferring belt pulley 123 by means of a normal belt NB and connected to the output belt pulley 113 by means of a one-way clutch bearing CB.
[7] To achieve the above object, according to another aspect of the present invention, there is provided a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of arm-exercising pedals; a first shaft belt pulley fitted around the first shaft and having an upper limb part belt output pulley mounted thereon so as to be connected to a load part while being restrained to the first shaft by means of a one-way clutch bearing CB; a second shaft engaged with the first shaft by means of gears; and a second shaft belt pulley fitted around the second shaft and connected to the first shaft belt pulley by means of a normal belt NB while being restrained to the second shaft by means of a one-way clutch bearing CB.
[8] To achieve the above object, according to still another aspect of the present invention, there is provided a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals and having an output pulley fitted therearound; a third shaft having a load part and first and second pulleys for the third shaft fitted therearound, each of the first and second pulleys for the third shaft having a one-way clutch bearing CB mounted therein; and a second shaft disposed between the first shaft and the third shaft and having a second shaft-reversing pulley fitted therearound, wherein the output pulley, the first pulley for the third shaft, and the second shaft-reversing pulley are connected to one another such that the output pulley and the first pulley for the third shaft abut against the inner surface of a double belt DB and the second shaft-reversing pulley abuts against the outer surface of the double belt DB, and the second pulley for the third shaft and the second shaft-reversing pulley are connected to each other by means of a normal belt NB.
[9] To achieve the above object, according to still yet another aspect of the present invention, there is provided a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals and having first and second output pulleys fitted around both sides thereof; a second shaft having a load part fitted therearound and first and second reversing pulleys for the second shaft fitted therearound at one side of the load part, each of the first and second reversing pulleys for the second shaft having a one-way clutch bearing CB mounted therein; and a third shaft disposed under the second shaft and having a third shaft pulley fitted therearound, wherein the first reversing pulley for the second shaft disposed at the left side of the second shaft and the first output pulley are connected to each other by means of a normal belt, and wherein the second output pulley, the third shaft pulley, and the second reversing pulley for the second shaft disposed at the right side of the second shaft are connected to one another such that the second output pulley and the third shaft pulley abut against the inner surface of a double belt and the second reversing pulley for the second shaft abuts against the outer surface of the double belt.
[10] To achieve the above object, according to still yet another aspect of the present invention, there is provided a bi-directional pedaling exercise bicycle includes: a first shaft axially coupled to a pair of leg-exercising pedals and having an output pulley fitted therearound; a second shaft having a load part fitted therearound and first and second reversing pulleys for the second shaft fitted therearound at both sides of the load part, each of the first and second reversing pulleys for the second shaft having a one-way clutch bearing CB mounted therein; and a third shaft disposed under the second shaft and having a third shaft pulley fitted therearound, wherein the output pulley, the third shaft pulley, and the first reversing pulley for the second shaft are connected to one another such that the output pulley and the third shaft pulley abut against the inner surface of a double belt and the first reversing pulley for the second shaft abuts against the outer surface of the double belt, and the second reversing pulley for the second shaft and the third shaft pulley are connected to each other by means of a normal belt.
[11] The first shaft reverse-transferring belt pulley or the output pulley is provided with an external input pulley belt-connected to the upper limb part, such that the exercise bicycle of this invention includes both the upper limb part and the lower limb part.
Advantageous Effects
[12] According to the present invention, the bi-directional pedaling exercise bicycle can be driven forward upon a forward or reverse rotation of the upper or lower limb part, thereby preventing a rider's inharmonious muscular development which may occur by pedaling only one direction. Brief Description of the Drawings
[13] FIG.1 is a cross-sectional view showing the whole operating structure of a bidirectional pedaling exercise bicycle;
[14] FIG.2 is a cross-sectional view showing the construction of a lower limb part in
FIG.l;
[15] FIG.3 is a side view of FIG.2, showing a locking state of the first to third shafts to a double belt;
[16] FIG.4 is a cross-sectional view showing the construction of an upper limb part in
FIG.l;
[17] FIGS.5 to 7 are cross-sectional views showing other examples of the lower limb part.
Mode for the Invention
[18] Now, an explanation of a bi-directional pedaling exercise bicycle according to the present invention will be given with reference to the accompanying drawing. [19] FIG.1 is a cross-sectional view showing the whole operating structure of a bidirectional pedaling exercise bicycle.
[20] As shown in FIG.1, the bi-directional pedaling exercise bicycle according to the present invention basically includes a lower limb part 110, an upper limb part 150, and a load part 190. In this case, the lower limb part 110 and the upper limb part 150 are provided with conventional crank arms and pedals (not shown) so as to drive the lower limb part 110 and the upper limb part 150.
[21] FIG.2 is a cross-sectional view showing the inner construction of the lower limb part in FIG.1.
[22] As shown in FIG.2, the lower limb part 110 includes a first shaft 111, a second shaft
121 and a third shaft 131.
[23] The first shaft 111 is axially coupled to a pair of leg-exercising pedals (not shown) and serves as a driving shaft rotating by a rider's foot pedaling action. The first shaft 111 has housings 112a and 112b and bearings mounted on both sides thereof, and the housings 112a and 112b and bearings serve to support the first shaft 111.
[24] An output belt pulley 113 is fitted around the first shaft 111 near the inside of one side housing 112a so as to be connected to the load part 190 by means of a normal belt NB. At this time, the output belt pulley 113 has a one-way clutch bearing CB mounted therein, such that when the first shaft 111 is rotated forward, the output belt pulley 113 is restrained and then connected to the load part 190. On the other hand, when the first shaft 111 is rotated rearward, the output belt pulley 113 is not restrained.
[25] A first shaft-reversing belt pulley 116 is fitted around the first shaft 111 inside of the other housing 112b. The first shaft-reversing belt pulley 116 has a reverse one-way clutch bearing RCB mounted therein, such that when the first shaft 111 is rotated rearward, the first shaft-reversing belt pulley 116 is restrained. On the other hand, when the first shaft 111 is rotated forward, the first shaft-reversing belt pulley 116 is not restrained.
[26] A first shaft reverse-transferring belt pulley 117 is fitted around the first shaft 111 at one side of the first shaft-reversing belt pulley 116. At this time, the first shaft reverse- transferring belt pulley 117 is extended longer than the first shaft-reversing belt pulley 116 so as to be coupled to the output belt pulley 113. In other words, an extension portion 114 is extended longer from the other side of the output belt pulley 113 so as to be formed integrally with the output belt pulley 113 such that the extension portion 114 is coupled to the other side of the first shaft reverse-transferring belt pulley 117. A oneway clutch bearing CB is embedded between the first shaft reverse-transferring belt pulley 117 and the extension portion 114. Thus, when the first shaft reverse- transferring belt pulley 117 is rotated forward, the output belt pulley 113 is restrained, and to the contrary, when the first shaft reverse-transferring belt pulley 117 is rotated rearward, the output belt pulley 113 is not restrained.
[27] The first shaft reverse-transferring belt pulley 117 is provided with an external input pulley 180 adapted to receive the driving force of the upper limb part 150.
[28] The second shaft 121 is disposed under the first shaft 111, and the third shaft 131 is under the second shaft 121. The second shaft 121 and the third shaft 131 are supported by means of a single housing 122, and bearings are embedded between the housing 122 and the respective shafts 121 and 131. The second shaft 121 has a second shaft reverse-transferring belt pulley 123 fitted therearound and the third shaft 131 has a third shaft pulley 133 fitted therearound, in a lower side direction of the first shaft- reversing belt pulley 116. The second shaft reverse-transferring belt pulley 123 is extended to the lower side of the first shaft reverse-transferring belt pulley 117.
[29] FIG.3 is a side view of FIG.l, showing a locking state of the lower limb part to a double belt.
[30] The lower limb part 110 is provided with two types of belts, the first of which is a double belt DB, as shown in FIG.3. The first shaft-reversing belt pulley 116, the second shaft reverse-transferring belt pulley 123 and the third shaft pulley 133 are connected to one another by means of the double belt. The first shaft-reversing belt pulley 116 and the third shaft pulley 133 abut against the inner surface of the double belt DB, and the second shaft reverse-transferring belt pulley 123 abuts against the outer surface of the double belt DB.
[31] The second type belt is a normal belt NB by which the second shaft reverse- transferring belt pulley 123 and the first shaft reverse-transferring belt pulley 117 are connected to each other.
[32] Thus, when the first shaft 111 is rotated forward, the one-way clutch bearing CB embedded inside the output belt pulley 113 is restrained such that the output belt pulley 113 and the load part 190 are rotated forward.
[33] On the other hand, when the first shaft 111 is rotated rearward, the reverse one-way clutch bearing RCB embedded inside the first shaft-reversing belt pulley 116 is restrained such that the first shaft-reversing belt pulley 116 and the third shaft pulley 133 are rotated rearward, while the second shaft reverse-transferring belt pulley 123 is rotated forward. Then, the first shaft reverse-transferring belt pulley 117 is rotated forward and restrained by means of the one-way clutch bearing CB embedded thereinto, such that the output belt pulley 113 and the load part 190 are still rotated forward.
[34] FIG.4 is a cross-sectional view showing the inner construction of an upper limb part in FIG.l.
[35] As shown in FIG.4, the upper limb part 150 includes a first shaft 151 and a second shaft 161. [36] The first shaft 151 is coupled to arm-exercising pedals (not shown) and serves as a driving shaft rotating by a rider's hand pedaling action. The first shaft 151 has housings 152a and 152b and bearings mounted on both sides thereof, and the housings 152a and 152b and bearings serve to support the first shaft 151.
[37] The first shaft 151 has a first shaft belt pulley 153 and a first shaft gear 156 fitted therearound. In this case, the first shaft output belt pulley 153 has a one-way clutch bearing CB mounted therein, such that when the first shaft 151 is rotated forward, the first shaft output belt pulley 153 is restrained by means of the one-way clutch bearing CB and then is rotated forward. On the other hand, when the first shaft 151 is rotated rearward, the first shaft output belt pulley 153 is not restrained. Also, the first shaft belt pulley 153 has an upper limb part belt output pulley 154 extending to the upper side of the external input pulley 180 formed on the lower limb part, and the upper limb part belt output pulley 154 and the external input pulley 180 are coupled to each other by means of a normal belt NB so as to be connected to the load part 190.
[38] The second shaft 161 is disposed above the first shaft 151 in parallel with the first shaft 151. In the same manner as the first shaft 151, the second shaft 161 is supported by means of housings 162a and 162b and bearings fitted along the outer peripheries of both ends thereof. The second shaft 161 has a second shaft belt pulley 163 and a second shaft gear 166 fitted therearound, the second shaft belt pulley 163 being connected to the first shaft belt pulley 153 by means of a normal belt NB and the second shaft gear 166 being adapted to be geared with the first shaft gear 156.
[39] The second shaft belt pulley 163 has a one-way clutch bearing CB embedded thereinto, such that only when the second shaft 161 is rotated forward, the second shaft belt pulley 163 is restrained by means of the one-way clutch bearing CB and then is rotated forward.
[40] Thus, when the first shaft 151 is rotated forward, the first shaft belt pulley 153 is restrained, such that the first output belt pulley 153 and the upper limb part belt output pulley 154 are rotated forward. Thus, the external input pulley 180 and the output belt pulley 113 of the lower limb part 110 are rotated forward to allow the load part 90 to be driven.
[41] On the other hand, when the first shaft 151 is rotated rearward, the first shaft gear
156 is rotated rearward to cause the second shaft gear 166 and the second shaft 161 to be rotated forward. Thus, the second shaft belt pulley 163 is restrained to the second shaft 161 to cause the first shaft belt pulley 153 to be rotated forward. The next operation is the same that as in the forward rotation of the first shaft 151.
[42] While the preferred embodiment of the present invention has described the bidirectional pedaling exercise bicycle with both the upper limb part 150 and the lower limb part 110 mounted thereon, only either the upper limb part 150 or the lower limb part 110 may be provided in the present invention. In this case, the output belt pulley 113 connected to the load part 190 is commonly mounted on the upper limb part 150 and the lower limb part 110.
[43] Further, the normal belt NB and the double belt DB adopted in the preferred embodiment of the present invention may be used as a timing belt.
[44] If the exercise bicycle of the present invention is driven with only the lower limb part, it may further include other manners besides the above-mentioned manner.
[45] FIGS.5 to 7 are cross-sectional views showing other examples of the lower limb part.
[46] Referring first to FIG.5, a lower limb part 210 basically includes a first shaft 211, a second shaft 221, and a third shaft 231.
[47] The first shaft 211 is coupled to the pedals, and an output pulley 212 is fitted integrally around the first shaft 211. A frame 213 is fitted around the first shaft 211 at a side of the output pulley 212.
[48]
[49] The third shaft 231 is a shaft around which a load part 290 is fitted, and a first pulley
232a for the third shaft is fitted around the third shaft 231 in such a manner as to be connected to the output pulley 212 abutting against the inner surface of a double belt DB. A second pulley 232b for the third shaft is fitted around the third shaft at a side surface of the first pulley 232a for the third shaft. In this case, the first and second pulleys 232a and 232b for the third shaft are embedded with a one-way clutch bearing CB that are restrained when the third shaft is rotated in a forward rotation.
[50] The second shaft 221 is disposed between the first shaft 211 and the third shaft 231, and a second shaft-reversing pulley 222 is fitted around the second shaft 221. The second shaft-reversing pulley 222 is extended further axially so as to be connected to the second pulley 232b for the third shaft 231.
[51] Thus, the output pulley 212, the second shaft-reversing pulley 222, and the first pulley 232a for the third shaft are coupled to one another by means of the double belt DB commonly fitted therearound, and the second pulley 232b for the third shaft and the second shaft-reversing pulley 222 are coupled to each other by means of a normal belt NB commonly fitted therearound, such that when the output pulley 212 is rotated forward, the first pulley 232a for the third shaft is restrained and the load part 290 is driven in a forward direction. On the other hand, when the output pulley 212 is rotated rearward, the first pulley 232a for the third shaft is not restrained and the second shaft- reversing pulley 222 is rotated in a forward direction. Thus, the forward rotation of the second shaft-reversing pulley 222 allows the second pulley 232b for the third shaft to be rotated forward, such that the load part 290 is driven in a forward direction.
[52] Referring to FIG.6, a lower limb part 310 basically includes a first shaft 311, a second shaft 321, and a third shaft 331. [53] The first shaft 211 has two output pulleys 312 fitted around both sides thereof, and a frame 313 is fitted around the first shaft 211 between the two output pulleys 312.
[54] The second shaft 321 is a shaft around which a load part 390 is fitted and further has a left second shaft-reversing pulley 322a and a right second shaft-reversing pulley 322b fitted therearound at both sides of the load part 390. In this case, the left second shaft-reversing pulley 322a and the right second shaft-reversing pulley 322b are embedded with a one-way clutch bearing CB that are restrained when the second shaft is rotated in a forward rotation.
[55] The third shaft 331 is disposed under the right second shaft-reversing pulley 322b and has a third shaft pulley 332 fitted therearound. Thus, the third shaft pulley 332, the right second shaft-reversing pulley 322b and the output pulley 312 are connected to one another by means of the double belt DB, such that even when the output pulley 312 is rotated rearward, the load part 390 is driven in the forward direction.
[56] Referring to FIG.7, a lower limb part 410 basically includes a first shaft 411, a second shaft 421, and a third shaft 431.
[57] The first shaft 411 has an output pulley 412 and a frame 413 fitted therearound.
[58] The second shaft 421 has a load part 490 fitted therearound and further has first and second reversing pulleys 422a and 422b for the second shaft 421 fitted therearound at one side of the load part 490. The first and second reversing pulleys 422a and 422b for the second shaft 421 are embedded with a one-way clutch bearing CB that is restrained when the second shaft 421 is rotated in a forward rotation.
[59] On the other hand, the third shaft 431 is disposed under the second shaft 421 and has a third shaft pulley 432 fitted therearound, the third shaft pulley 432 having the same length as the added length of the first and second reversing pulleys 422a and 422b for the second shaft 421.
[60] Thus, the output pulley 412 and the third shaft pulley 432 are connected to each other so as to abut against the inner surface of the double belt DB, and the first reversing pulley 422a for the second shaft 421 abuts against the inner surface of the double belt DB, thereby serving as a reverse belt. Also, the second reversing pulley 422b for the second shaft 421 and the third shaft pulley 432 are connected to each other by means of the normal belt NB.
[61] When the output pulley 412 is rotated forward, the first reversing pulley 422a for the second shaft 421 is rotated rearward to run idle. The second reversing pulley 422b for the second shaft 421 connected to the third shaft pulley 432 by means of the normal belt NB is restrained to the second shaft 421, thereby allowing the load part 490 to be driven in a forward direction. On the other hand, when the output pulley 412 is rotated rearward, the first reversing pulley 422a for the second shaft 421 is reversed to rotate in a forward direction and is thus restrained to the second shaft 421, thereby allowing the load part 490 to be driven in a forward direction.
[62] On the other hand, even though not shown in FIGS. 5 to 7, each of the output pulleys
212, 312, and 412 may be provided with an external input pulley adapted to receive the power from the upper limb part so as to be operated in cooperation with the upper limb part. Industrial Applicability
[63] As described above, the bi-directional pedaling exercise bicycle according to the present invention can be driven forward and rearward upon a forward or reverse rotation of the upper or lower limb part, thereby preventing a rider's inharmonious muscular development which may occur upon pedaling in only one direction with the rider's arms or legs.
[64] While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

Claims

Claims
[1] A bi-directional pedaling exercise bicycle comprising: a first shaft 151 axially coupled to a pair of arm-exercising pedals; a first shaft belt pulley 153 fitted around the first shaft 151 and having an upper limb part belt output pulley 154 mounted thereon so as to be connected to a load part 190, which is restrained to the first shaft by means of a one-way clutch bearing CB; a second shaft 161 adapted to engage with the first shaft 151 by means of gears
156 and 166; and a second shaft belt pulley 163 fitted around the second shaft 161 by means of a one-way clutch bearing CB and belt-connected to the first shaft belt pulley 153.
[2] A bi-directional pedaling exercise bicycle comprising: a first shaft 111 axially coupled to a pair of leg-exercising pedals in the exercise bicycle; an output belt pulley 113 fitted around the first shaft 111 so as to allow a load part 190 to be driven in a forward direction, which is restrained to the first shaft by means of a one-way clutch bearing CB when the first shaft is rotated either forward or rearward; a first shaft-reversing belt pulley 116 fitted around the first shaft 111 and restrained to the first shaft by means of a reverse one-way clutch bearing RCB; a third shaft pulley 133 connected to the first shaft-reversing belt pulley 116 by means of a double belt DB and a second shaft reverse-transferring belt pulley 123 adapted to abut against the outer surface of the double belt DB; and a first shaft reverse-transferring belt pulley 117 fitted around the first shaft 111 so as to be connected to the second shaft reverse-transferring belt pulley 123 with a normal belt NB and connected to the output belt pulley 113 by means of a oneway clutch bearing CB.
[3] A bi-directional pedaling exercise bicycle comprising: a first shaft 211 axially coupled to a pair of leg-exercising pedals in the exercise bicycle and having an output pulley 212 fitted therearound; a third shaft 231 having a load part 290 and first and second pulleys 232a and
232b for the third shaft 231 having a one-way clutch bearing CB mounted therein; and a second shaft 221 disposed between the first shaft 211 and the third shaft 231 and having a second shaft-reversing pulley 222 fitted therearound, wherein the output pulley 212, the first pulley 232a for the third shaft 231, and the second shaft-reversing pulley 222 are connected to one another such that the output pulley 212 and the first pulley 232a for the third shaft 231 abut against the inner surface of a double belt DB and the second shaft-reversing pulley 232b abuts against the outer surface of the double belt DB, and the second pulley 232b for the third shaft 231 and the second shaft-reversing pulley 222 are connected to each other by means of a normal belt NB.
[4] A bi-directional pedaling exercise bicycle comprising: a first shaft 311 axially coupled to a pair of leg-exercising pedals and having first and second output pulleys 312 fitted around both sides thereof; a second shaft 321 having a load part 390 fitted therearound and first and second reversing pulleys 322a and 322b for the second shaft 321 fitted therearound at both sides of the load part 390, each of the first and second reversing pulleys 322a and 322b for the second shaft 321 having a one-way clutch bearing CB mounted therein; and a third shaft 331 disposed under the second shaft 321 and having a third shaft pulley 332 fitted therearound, wherein the first reversing pulley 322a for the second shaft 321 disposed at the left side of the second shaft 321 and the first output pulley 312 are connected to each other by means of a normal belt NB, and wherein the second output pulley 312, the third shaft pulley 332, and the second reversing pulley 322b for the second shaft 321 disposed at the right side of the second shaft 321 are connected to one another such that the second output pulley 312 and the third shaft pulley 332 abut against the inner surface of a double belt DB and the second reversing pulley 322b for the second shaft 321 abuts against the outer surface of the double belt DB.
[5] A bi-directional pedaling exercise bicycle comprising: a first shaft 411 axially coupled to a pair of leg-exercising pedals in the exercise bicycle and having an output pulley 412 fitted therearound; a second shaft 421 having a load part 490 fitted therearound and first and second reversing pulleys 422a and 422b for the second shaft 421 fitted therearound at one side of the load part 490, each of the first and second reversing pulleys 422a and 422b for the second shaft 421 having a one-way clutch bearing CB mounted therein; and a third shaft 431 disposed under the second shaft 421 and having a third shaft pulley 432 fitted therearound, wherein the output pulley 412, the third shaft pulley 432, and the first reversing pulley 422a for the second shaft 421 are connected to one another such that the output pulley 412 and the third shaft pulley 432 abut against the inner surface of a double belt DB and the first reversing pulley 422a for the second shaft 421 abuts against the outer surface of the double belt DB, and the second reversing pulley 422b for the second shaft 421 and the third shaft pulley 432 are connected to each other by means of a normal belt NB. [6] The bi-directional pedaling exercise bicycle according to claims 2, wherein the first shaft reverse-transferring belt pulley 117 is provided with an external input pulley adapted to receive power from the outside. [7] The bi-directional pedaling exercise bicycle according to any one of claims 3 to
5, wherein the output pulleys is provided with an external input pulley adapted to receive power from the outside.
PCT/KR2008/000407 2007-01-23 2008-01-23 Bi-directional pedaling exercise bicycle WO2008091106A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070007020A KR100777682B1 (en) 2007-01-23 2007-01-23 Regular turning and reverse turning type health bicycle
KR10-2007-0007020 2007-01-23

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WO2008091106A1 true WO2008091106A1 (en) 2008-07-31

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WO (1) WO2008091106A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190788U (en) * 1985-05-22 1986-11-27
KR200325882Y1 (en) * 2003-05-27 2003-09-17 허현강 Cycling machine able to driving in a forward and reverse direction
KR200344975Y1 (en) * 2003-11-27 2004-03-11 장종근 Device for regular turning and reverse turning of pedal of health bicycle
JP2005230327A (en) * 2004-02-20 2005-09-02 Dream Energy:Kk Exercise machine
KR200407322Y1 (en) * 2005-11-16 2006-01-26 김기승 A driving gear of counterclockwise for health bicycle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200415309Y1 (en) * 2006-02-09 2006-05-02 이일룡 A driving gear of counterclockwise for health bicycle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190788U (en) * 1985-05-22 1986-11-27
KR200325882Y1 (en) * 2003-05-27 2003-09-17 허현강 Cycling machine able to driving in a forward and reverse direction
KR200344975Y1 (en) * 2003-11-27 2004-03-11 장종근 Device for regular turning and reverse turning of pedal of health bicycle
JP2005230327A (en) * 2004-02-20 2005-09-02 Dream Energy:Kk Exercise machine
KR200407322Y1 (en) * 2005-11-16 2006-01-26 김기승 A driving gear of counterclockwise for health bicycle

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KR100777682B1 (en) 2007-11-28
TWI336302B (en) 2011-01-21

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