KR101566579B1 - Power transmission device of chainless bicycle - Google Patents

Power transmission device of chainless bicycle Download PDF

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Publication number
KR101566579B1
KR101566579B1 KR1020130023534A KR20130023534A KR101566579B1 KR 101566579 B1 KR101566579 B1 KR 101566579B1 KR 1020130023534 A KR1020130023534 A KR 1020130023534A KR 20130023534 A KR20130023534 A KR 20130023534A KR 101566579 B1 KR101566579 B1 KR 101566579B1
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KR
South Korea
Prior art keywords
hole
pedal
shaft
bicycle
hinge
Prior art date
Application number
KR1020130023534A
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Korean (ko)
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KR20140109163A (en
Inventor
신석주
Original Assignee
신석주
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Publication date
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Priority to KR1020130023534A priority Critical patent/KR101566579B1/en
Priority to PCT/KR2014/000961 priority patent/WO2014137076A1/en
Publication of KR20140109163A publication Critical patent/KR20140109163A/en
Application granted granted Critical
Publication of KR101566579B1 publication Critical patent/KR101566579B1/en

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    • 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
    • B62M1/26—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by rotary cranks combined with reciprocating levers
    • 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
    • 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
    • B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power transmission device for a bicycle, more particularly, to a power transmission device for connecting a pedal and a rear wheel to transmit power without a chain, A power transmission device for a bicycle in which the configuration is simple and the production cost can be reduced is provided with a body provided with a saddle, a front wheel mounted on the front portion of the body and a rear wheel installed on the rear portion of the body, A bicycle comprising: a driving gear for transmitting rotational force in one direction to both ends of the rear wheel center shaft; and a rotary gear having gears formed at its central portion to be meshed with the driving gear, A support member provided on one side of the support member, A power transmitting member having a shaft and a pedal installed at a lower end of the central portion of the bicycle body so as to be able to place a foot on a side of a hinge hole and a side of an insertion groove of the power transmitting member, A connecting portion formed at one end of the rotating roller portion and having a coupling hole formed at the other end thereof and a hinge hole formed in the hinge hole of the bicycle body and both ends connected to the coupling hole of the coupling portion, And a hinge shaft is installed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power transmission device of a bicycle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power transmission device for a bicycle, more particularly, to a power transmission device for transmitting power without a chain connecting a pedal and a rear wheel, And more particularly, to a power transmission apparatus of a bicycle capable of reducing production costs.

Generally, the power system of the bicycle is equipped with the front and rear sprockets on the pedal shaft and the rear wheel shaft, respectively. When the pedals are rotated by connecting the front and rear sprockets with the chain, the rotational force of the front sprocket rotates the rear sprocket And the rear wheel, to which the rear sprocket is connected, is rotated so as to be able to advance.

However, the conventional chain type bicycle has a problem in that oil adhered to the chain causes the clothes to be contaminated, and the chain is often separated or broken, resulting in inconvenience in use and reliability.

To solve these problems, a bicycle was developed.

As shown in FIG. 1, the power transmission apparatus of the present invention includes a first gear 10 'mounted on a pedal shaft 11'; A second gear 35 'mounted on the rear wheel shaft 30'; And an intermediate member 20 'which is engaged with the first and second gears 10' and 35 'so that two gears can be interlocked.

Gears 25 'and 27A' are formed at both ends of the intermediate member 20 '.

Accordingly, the power generated by the rotation of the pedal shaft 11 'is transmitted to the rear wheel shaft 30' through the intermediate member 20 'to drive the rear wheel.

Thus, the conventional unidirectional bicycle power transmission apparatus has a complicated structure, increases the production cost, increases the supply price of the product, and transmits a large amount of force to the pedal because the pedal shaft is rotated and transmitted to the rear wheel.

Korean Patent Registration No. 0842361.

In order to solve the above-mentioned problems, the present invention provides a power transmission system in which a power transmission system transmits power to a rear wheel on the principle of a lever to facilitate transmission of power to a rear wheel by a small force, The purpose of the device is to provide.

According to an aspect of the present invention, there is provided a bicycle comprising a body having a saddle, a front wheel installed at a front portion of the body and rotating, and a rear wheel installed at a rear portion of the body, A support member having a drive gear for transmitting a rotational force in one direction at both ends thereof and a rotary gear having a gear at a central portion thereof meshed with the drive gear and having an insertion groove formed at a predetermined length, A power transmitting member having a rotating hinge shaft connected to a bicycle body, a pedal installed at a lower side of the central portion of the bicycle body so as to place a foot on a side of a hinge hole and a side of the insertion groove of the power transmitting member, And a roller portion that is connected to the pedal and rotates, And a hinge shaft which is coupled to the hinge hole of the bicycle body and has opposite ends connected to the coupling holes of the coupling portion and is formed into a spur gear so as to be rotatable in different directions .

The connecting portion is inserted into a hinge hole of the bicycle body and has a horizontal axis connecting the pedal and the pedal. A through hole is formed at the center of the horizontal axis inserted in the hinge hole of the bicycle body. A hinge shaft in the form of a horizontal bar inserted through the through hole of the horizontal shaft so as to be able to move up and down, and a rotation hole having a through hole is inserted into the hinge hole of the bicycle body, A hinge shaft of a horizontal bar inserted through a through hole of a horizontal shaft for connecting the pedal and the pedal to the pedal, and a transmission for rotating the rotary shaft is provided on one side of the outer periphery of the rotary shaft.

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As described above, in the power transmission device of the present invention, the power transmission system transmits the power to the rear wheels on the principle of the lever, and it is easy to transmit the large power to the rear wheels with a small force, And it is possible to adjust the rotation angle of the pedal according to the speed of the pedal and the user's body condition.

1 is a perspective view showing a conventional power transmission device.
2 is a perspective view showing a power transmitting device of a bicycle according to the present invention.
FIG. 3A is a front view of a power transmitting apparatus of a bicycle according to the present invention. FIG.
FIG. 3b is a plan view showing a power transmitting apparatus of a bicycle according to the present invention. FIG.
4 is a cross-sectional view of the drive gear of the present invention.
5A and 5B are operational state diagrams showing Fig.
6A and 6B show another embodiment of the power transmitting member of the present invention.
7 is a side view showing the rotation hinge axis of the power transmitting member of the present invention.
8A is another embodiment showing a support member of the power transmitting member of the present invention.
Figure 8b is an embodiment of Figure 8a.
9A and 9B show another embodiment of the hinge axis of the present invention.
FIG. 10A shows another embodiment of the connecting part of the present invention. FIG.
FIG. 10B is an embodiment according to FIG. 10A. FIG.
11 is a view showing another embodiment of a power transmission device of a bicycle according to the present invention.
Figs. 12A, 12B, 12C, and 12D show another embodiment showing the operating state and the position of the pedal in Fig.
13A and 13B illustrate an embodiment of the power transmission device of the bicycle according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Therefore, various equivalents It should be understood that there may be water and variations.

FIG. 2 is a perspective view showing a power transmitting device of a bicycle according to the present invention, FIG. 3a is an assembled front view showing a power transmitting device of a bicycle according to the present invention, and FIG. 3b is a cross- Fig. 4 is an exploded cross-sectional view showing the drive gear of the present invention, Figs. 5A and 5B are operational state diagrams showing Fig. 4, and Figs. 6A and 6B are cross- Fig. 8A is another embodiment showing a supporting member of the power transmitting member of the present invention, Fig. 8B is an embodiment of Fig. 8A, Fig. FIG. 10A is another embodiment showing the connecting portion of the present invention, FIG. 10B is an embodiment of FIG. 10A, FIG. 11 is a cross-sectional view bicycle Figs. 12A, 12B, 12C and 12D show another embodiment showing the operation state and the position of the pedal in Fig. 11, Figs. 13A and 13B show the power transmission The device is an embodiment of use.

As shown in Figs. 2 to 3a and 3b, the power transmission device 1 of the present invention includes a body having a saddle, a front wheel installed at a front portion of the body, and a rear wheel A driving gear 10 for transmitting a rotational force in one direction to both ends of the rear wheel central shaft 100 and a rotary gear having a central gear for meshing with the driving gear 10 And a support member 26 having an insertion groove 24 formed at a predetermined length is provided at one side of the support member 26 and at a side of the support member 26, A power transmission member 20 provided with a hinge shaft 28 and a hinge hole 210 at the lower end of the central portion of the bicycle body 200 and a side surface of the insertion groove 24 of the power transmitting member 20 A pedal 30 to be installed, A connecting portion 40 which is inserted into the insertion groove 24 of the transmitting member 20 and is connected to the pedal 30 so as to rotate and has a roller portion 42 at one end and a coupling hole 44 at the other end, A hinge shaft 50 inserted into the hinge hole 210 of the bicycle body 200 and having opposite ends connected to the coupling holes 44 of the connection portion 40 is installed.

It is preferable that the rotary gear 22 of the power transmitting member 20 is formed as a C-shaped hemispherical frame with one side open and a gear is formed at the center to engage with the driving gear 10. [

In other words, the rotation gear 22 is inserted into the driving gear 10 to prevent the driving gear 10 from being disengaged from the driving gear 10 during rotation.

As shown in FIG. 4, the driving gear 10 includes external gears and internal gears 10-1 and 10-2, a hinge shaft 10-3 is provided on the internal gear 10-2, A groove 10-4 is formed on one side of the hinge shaft 10-3 and an elastic member 10-5 is inserted into the groove 10-4 and the upper end of the elastic member 10-5 And a locking projection 10-6 is formed.

5A, a force is transmitted to the hinge shaft 10-3 of the driving gear 10 when the driving gear 10 rotates in a counterclockwise direction as shown in FIG. 5A, The locking projection 10-6 of the driving gear 10 is pushed by the internal gear 10-2 and moved to the groove 10-4 as shown in FIG. 5B So that the force is not transmitted to the hinge shaft 10-3 of the driving gear 10.

That is, when the power transmitting member 20 is moved downward, the driving gear 10 rotates in a counterclockwise direction and is rotated by the hinge shaft 10-3 of the driving gear 10, And is not rotated by the hinge shaft 10-3 of the drive gear 10 when rotating clockwise, so that the rear wheel of the bicycle does not rotate.

The driving gear 10 is installed at both ends of the rear wheel center shaft 100 and transmits a force to the rear wheel when the pedal 30 is moved downward, And the other pedal 30 may transmit the force that the bicycle can move forward when the driving gears 10 connected to each other in the upward direction are rotated in different directions.

6A, a worm-type frame 26-A is attached to one end of the support member 26 of the power transmission member 20 so that the rotation gear 22 connected to the drive gear 10 can be easily replaced when the power is broken. 1 is provided on one side of the wiper frame 26-1 and a projecting engagement pin 26-2 is provided on one side of the wiper frame 26-1. And a through hole 22-1 is formed in the side surface so as to be attachable and detachable.

As shown in FIG. 6B, the rotary gear 22 is formed as a chain 22-2 having a predetermined length so that it can be easily replaced and purchased by anyone.

The supporting member 26 of the power transmitting member 20 is rotated to rotate the rotating gear 22 so that the rotating hinge shaft 28 of the power transmitting member 20 is rotated in the direction The rotary hinge shaft 28 of the power transmitting member 20 is connected to the rear wheel center shaft 100 so that the maximum force can be transmitted to the rear wheels with a minimum force when the user pushes the pedal, And a central portion (P) of the entire length of the support member (26).

That is, the rotation hinge axis 28 of the power transmitting member 20 is connected to the bicycle body 200 at a position as close as possible to the starting point of the driving gear 10 in order to maximize the rotation of the leverage principle, It is able to transmit maximum power with power.

The insertion groove 24 of the power transmitting member 20 is preferably provided with an adjusting pin 24-2 for adjusting the rotational angle of the pedal 30 to be moved upward and downward as shown in FIG. Do.

That is, the insertion groove 24 of the power transmitting member 20 is formed to have a predetermined length, and a through hole 24-1 is formed at one side of the power transmitting member 20 at regular intervals, and the adjusting pin 24- The pedal 30 can be moved up and down with a small turning radius as shown in FIG. 8B, so that the progress of the pedal 30 and the rotation of the driving gear 10 can be rapidly There is an effect that the position where the user's feet are placed on the pedal 30 can be adjusted.

It is preferable that the hinge shaft 50 is formed of spur gears 51 and 52 that rotate in different directions as shown in Figs. 9A and 9B.

That is, when one pedal 30 is rotated, the other pedal 30 is operated at the same time, so that the pedal 30 can be more conveniently rotated.

The connecting portion 40 is inserted into the hinge hole 210 of the bicycle body 200 so that the pedal 30 can be moved when the pedal 30 is operated, A horizontal shaft 40-1 for connecting the pedal 30 and the pedal 30 is provided in the center of the horizontal shaft 40-1 inserted into the hinge hole 210 of the bicycle body 200, 2 through the through hole 40-2 of the horizontal shaft 40-1 so that the pedal 30 can be moved up and down is formed in the through hole 40-2. It is preferable that a hinge shaft 50 is provided.

That is, as shown in FIG. 10B, when one side goes up on the principle of seesaw, the other side goes down, and the user can conveniently transmit a lot of force to the pedal 30.

In order to adjust the angle of rotation of the pedal 30, a through hole 72 is formed in the hinge hole 210 of the bicycle body 200 as shown in FIGS. 11, 12a, 12b, 12c, and 12d A through hole 40-2 of the horizontal shaft 40-1 for connecting the pedal 30 and the pedal 30 is provided in the through hole 72 of the rotary shaft 70, And a transmission device 80 coupled to the hinge shaft 50 in the form of a horizontal rod inserted into the through hole and rotating the rotary tool 70 on one side of the outer periphery of the rotary tool 70.

The transmission (80) is wound around the outer circumferential surface of the rotary tool (70) with a wire to control the rotation of the rotary tool (70).

That is, by changing the traveling direction of the pedal 30, the bicycle can be applied to various hills, slopes, and flat roads.

As described above, the power transmission device 1 of the present invention has a body having a saddle as shown in FIG. 13A, a front wheel installed at a front portion of the body, and a rear wheel installed at a rear portion of the body, A driving gear 10 for transmitting rotational force in one direction is provided at both ends of the rear wheel central shaft 100 and a driving gear 10 is provided on one side of the driving gear 10, And a support member 26 having a predetermined length and having an insertion groove 24 at one end thereof is provided on one side of the outer periphery of the support member 26, A power transmission member 20 having a rotary hinge shaft 28 connected to the bicycle body 200 is installed on one side of the insertion groove 24 of the power transmission member 20, A pedal 30 is provided, A connecting portion 40 which is inserted into the insertion groove 24 of the power transmitting member 20 and is connected to the pedal 30 so as to rotate and has a roller portion 42 at one end and a coupling hole 44 at the other end, And a hinge shaft 50 connected to the coupling hole 44 of the connection unit 40 is installed in the hinge hole 210 formed at the lower end of the center of the bicycle body 200.

13 (b), the power transmission device 1 of the present invention is mounted on the power transmitting member 20 as shown in FIG. 13 (b) The power transmission member 20 moves upward and downward and rotates the driving gear 10 to transmit a force to the rear wheel center shaft 100 so that the bicycle moves forward It will advance.

As described above, the power transmission device 1 of the present invention of the present invention transmits the power to the rear wheels on the principle of leverage, facilitates transmission of large power to the rear wheels with a small force, , It is possible to adjust the rotation angle of the pedal according to the speed of the pedal and the user's body condition.

1: Power transmission device of a bicycle
10: drive gear 10 -1: external gear
10-2: Inner gear 10-3: Hinge shaft
10-4: Groove 10-5: Elastic member
10-6: a stumbling block
20: power transmitting member 22: rotary gear
22-1: Through hole 22-2: Chain
24: insertion groove 24-1: through hole
24-2: regulating pin 26: supporting member
26-1: wye-shaped frame 26-2: engaging pin
28: Rotary hinge axis
30: Pedal
40: connection part 40 -1: horizontal axis
40-2: through hole 42: roller portion
44: coupling ball
50: Hinge shaft 51, 52: Spur gear
70: rotation hole 72: through hole
80: Transmission
100: Rear center axis 200: Bicycle body
210: Hinge ball

Claims (7)

A bicycle comprising a body provided with a saddle, a front wheel provided on a front portion of the body and rotating, and a rear wheel provided on a rear portion of the body,
A driving gear which transmits rotational force in one direction to both ends of the rear wheel center shaft;
A support member having an insertion groove formed at a predetermined length on one side surface thereof and a rotary member having a gear formed on the center thereof so as to engage with the drive gear, A power transmitting member having a shaft;
A hinge hole at the lower end of the center of the bicycle body;
A pedal installed on one side surface of the insertion groove of the power transmitting member so as to be able to put a foot;
A coupling portion inserted into the insertion groove of the power transmitting member and connected to the pedal to be rotated, and having a roller portion at one end and a coupling hole formed at the other end;
And a hinge shaft formed of a spur gear so as to be coupled to the hinge hole of the bicycle body and connected to the coupling hole of the coupling portion at both ends thereof so as to be rotatable in different directions. Device.
delete delete delete delete delete A bicycle comprising a body provided with a saddle, a front wheel provided on a front portion of the body and rotating, and a rear wheel provided on a rear portion of the body,
A driving gear which transmits rotational force in one direction to both ends of the rear wheel center shaft;
A support member having an insertion groove formed at a predetermined length on one side surface thereof and a rotary member having a gear formed on the center thereof so as to engage with the drive gear, A power transmitting member having a shaft; A hinge hole at the lower end of the center of the bicycle body; And a pedal and a connection part installed on one side surface of the insertion groove of the power transmitting member so as to be able to place a foot,
The connecting portion is inserted into a hinge hole of the bicycle body and has a horizontal axis connecting the pedal and the pedal. A through hole is formed in a central portion of the horizontal axis inserted in the hinge hole of the bicycle body, And a hinge shaft in the form of a horizontal bar inserted through the through hole of the horizontal shaft so as to be able to move downward,
A hinge shaft having a through hole is inserted in the hinge hole of the bicycle body, and a hinge shaft in the form of a horizontal bar is inserted into the through hole of the horizontal shaft inserted into the through hole of the rotary hole to connect the pedal and the pedal, And a transmission for rotating the rotary shaft is provided on one side of the outer periphery.
KR1020130023534A 2013-03-05 2013-03-05 Power transmission device of chainless bicycle KR101566579B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020130023534A KR101566579B1 (en) 2013-03-05 2013-03-05 Power transmission device of chainless bicycle
PCT/KR2014/000961 WO2014137076A1 (en) 2013-03-05 2014-02-05 Power transmission device for chainless bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130023534A KR101566579B1 (en) 2013-03-05 2013-03-05 Power transmission device of chainless bicycle

Publications (2)

Publication Number Publication Date
KR20140109163A KR20140109163A (en) 2014-09-15
KR101566579B1 true KR101566579B1 (en) 2015-11-13

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KR1020130023534A KR101566579B1 (en) 2013-03-05 2013-03-05 Power transmission device of chainless bicycle

Country Status (2)

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KR (1) KR101566579B1 (en)
WO (1) WO2014137076A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210041717A (en) 2019-10-08 2021-04-16 (주)빅라인 Chainless driving device for bicycle and bicycle comprising the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3033310A1 (en) * 2015-03-04 2016-09-09 Jean-Francois Cailler TRAINING FOR BICYCLE
CN106697171A (en) * 2017-01-04 2017-05-24 兰州工业学院 Chainless planetary gear type bicycle and transmission mechanism thereof
CN108087519B (en) * 2017-12-13 2020-04-10 陈勇 Mechanical transmission type driving device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039942U (en) * 1973-08-09 1975-04-23
KR900003020A (en) * 1988-08-02 1990-03-23 김세웅 Power Drive of Bicycle
KR100854374B1 (en) * 2002-07-09 2008-09-02 주식회사 포스코 A coke screen capable of preventing grizzly being clogged
KR101159800B1 (en) * 2010-06-29 2012-06-26 김성옥 Non-chain bicycle
KR101213348B1 (en) * 2010-10-06 2012-12-18 조병삼 Power device for bicycle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210041717A (en) 2019-10-08 2021-04-16 (주)빅라인 Chainless driving device for bicycle and bicycle comprising the same

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Publication number Publication date
WO2014137076A1 (en) 2014-09-12
KR20140109163A (en) 2014-09-15

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