KR20150029320A - Power transmissiong apparatus using link - Google Patents

Power transmissiong apparatus using link Download PDF

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Publication number
KR20150029320A
KR20150029320A KR20130108340A KR20130108340A KR20150029320A KR 20150029320 A KR20150029320 A KR 20150029320A KR 20130108340 A KR20130108340 A KR 20130108340A KR 20130108340 A KR20130108340 A KR 20130108340A KR 20150029320 A KR20150029320 A KR 20150029320A
Authority
KR
South Korea
Prior art keywords
link
gear
driving
fixed
hub
Prior art date
Application number
KR20130108340A
Other languages
Korean (ko)
Inventor
복 성 김
김도환
Original Assignee
복 성 김
김도환
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 복 성 김, 김도환 filed Critical 복 성 김
Priority to KR20130108340A priority Critical patent/KR20150029320A/en
Publication of KR20150029320A publication Critical patent/KR20150029320A/en

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Classifications

    • 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
    • B62M1/36—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks
    • B62M1/38—Rider propulsion of wheeled vehicles with rotary cranks, e.g. with pedal cranks for directly driving the wheel axle
    • 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
    • B62M15/00—Transmissions characterised by use of crank shafts and coupling rods
    • 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
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/08—Pedals

Abstract

The present invention relates to a power transmission apparatus used for a bicycle and, more specifically, to a power transmission apparatus used for a bicycle and using links, which is capable of driving the bicycle using the links without existing driving units such as a chain, a driving sprocket, a driven sprocket, etc. According to the present invention, a power transmission apparatus used for a bicycle and using links comprises: a hub to which the spokes of a rear wheel are connected; the rotation link connected to the hub, and rotating the hub; the driving link having one end connected to the rotation link, having the other end connected to a pedal shaft, and rotating the rotation link when pedals are pressed; and a direction retention unit retaining the direction of the driving link. In addition, the direction retention unit includes: a fixed gear installed to be fixed to a frame by a shaft as the rotary shaft of the rotation link; a revolution gear mounted on a rotary shaft to which the rotation link and the driving link are connected, and fixed to the driving link; and a connection member linking the revolution gear and the fixed gear.

Description

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

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle power transmission device, and more particularly, to a bicycle power transmission device using a link capable of driving a bicycle by a link without a conventional drive device such as a chain, a drive sprocket, and a driven sprocket.

Generally, the bicycle includes a power transmission device 100 using a chain. 1 and 2, a conventional power transmission apparatus 100 includes an integrated pedal set 113 in which both pedals 112 are integrally coupled to a bottom brocket, a crank 111, A hub 140 disposed at the center of the rear wheel, a chain 140 for transmitting power and a driven sprocket 130 connected to the drive sprocket 114 by a chain.

In the conventional power transmission apparatus, when the user rotates the pedal by a force of both feet, the drive sprocket is rotated, and the driven sprocket is rotated by the chain. Thus, the driven sprocket is rotated.

That is, in the conventional power transmission device, the driving sprocket and the driven sprocket are rotated by rotating the pedal, and finally the hub is rotated and driven. As is known, a large force is required to transmit and drive power through an uphill road. Therefore, there is a case where a transmission device is mounted, but it is not a popular means of transportation because it has a limitation in reducing the power.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a bicycle power transmission device using a link capable of driving a bicycle by a link without a conventional drive device such as a chain, a drive sprocket, .

According to an aspect of the present invention, there is provided a bicycle power transmission apparatus using a link, comprising: a hub to which a spoke of a rear wheel is connected; A rotating link coupled to the hub to rotate the hub; A drive link connected to the rotary link at one end and connected to the pedal shaft at the other end to rotate the rotary link by pressing the pedal; And a direction maintaining means for keeping the direction of the drive link constant.

Further, the direction maintaining means includes: a fixed gear fixed to the frame with the same axis as the rotation axis of the rotating link; An idle gear mounted on a rotating shaft to which the rotating link and the driving link are connected and fixed to the driving link; And a connecting member for interlocking the idle gear and the fixed gear.

Preferably, the connecting member is a connecting gear having at least one odd number of rotatable gears between the stationary gear and the idler gear.

Further, the connecting member is preferably a chain or a belt that connects the fixed gear and the idle gear.

A hub to which a spoke of a rear wheel according to the present invention is connected; A driven sprocket disposed at one side of the hub; A driving sprocket rotatably mounted on the frame for transmitting driving force to the driven sprocket; A rotating link to which an axis of the drive sprocket is fixed; A drive link connected to the rotary link at one end and connected to the pedal shaft at the other end to rotate the rotary link by pressing the pedal; And a direction maintaining means for keeping the direction of the drive link constant.

Further, the direction maintaining means includes: a fixed gear fixed to the frame with the same axis as the rotation axis of the rotating link; An idle gear mounted on a rotating shaft to which the rotating link and the driving link are connected and fixed to the driving link; And a first connecting member for linking the fixed gear and the idle gear.

And a second connecting member for transmitting a driving force of the driving sprocket to the driven sprocket.

Preferably, the first connecting member or the second connecting member is a connecting gear having at least one odd number.

It is preferable that the first connecting member or the second connecting member is one of a chain and a belt.

According to the present invention, there is an effect that a bicycle can be driven by a link without a conventional drive device such as a chain, a drive sprocket, and a driven sprocket.

In addition, since the link is provided in a pair so as to be substantially extended in length, the moment proportional to the length is increased, thereby driving the bicycle with a small force.

Figure 1 shows a typical bicycle.
Fig. 2 shows a power transmission device of the bicycle shown in Fig. 1. Fig.
3 to 5 show a first embodiment according to the present invention.
Fig. 6 shows the operating state of the first embodiment shown in Fig.
7 to 9 show a second embodiment according to the present invention.
Fig. 10 shows the operating state of the second embodiment shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration and an operation of an embodiment of the present invention will be described with reference to the accompanying drawings.

3 to 5, a first embodiment 200 according to the present invention includes a hub 220 to which spokes of rear wheels are connected, a rotation link 230, a driving link 240, 250).

The rotation link 230 is coupled to one side of the hub 220 so that when the rotation link 230 is rotated, the hub 220 is rotated together with the rotation link 230.

The driving link 240 is a component for rotating the rotating link 230. One end of the driving link 240 is rotatably connected to the rotation link 230 and the other end is rotatably connected to the pedal shaft 212 to press the driving link 240 And rotates the rotating link 230 by driving. A crank 211 is connected to a bottom bracket 210 of a bicycle and a pedal 212 is connected to an end of the crank 211. The other end of the driving link 240 is connected to the crank 211 And an axis 212a connecting the pedal 212 to the end of the pedal 212. [

Particularly, in this embodiment, the direction maintaining means 250 is provided to maintain the direction of the driving link 240 constant while rotating the rotating link 230 connected to the hub 220 by 360 degrees.

The direction maintaining means 250 includes a fixed gear 251, an idle gear 252, and a connecting gear 253 as a connecting member.

The fixed gear 251 is fixed to the frame F on the same axis as the rotating shaft 251a of the rotating link.

The idler gear 252 is mounted on a rotary shaft 252a to which the rotary link 230 and the drive link 240 are connected and is fixed to the drive link 240. [

The connecting gear 253 is rotatably disposed between the fixed gear 251 and the idler gear 252 and is disposed to be engaged with the fixed gear 251 and the idler gear 252, respectively. It is also possible that the connecting gear 253 is provided between the stationary gear 251 and the idle gear 252 in a plurality of or more than one. However, if a plurality of connecting gears 253 are provided, they should be provided in an odd number. When the number of teeth of the fixed gear 251 and the number of teeth of the idle gear 252 are equal to each other and a connecting gear 253 is provided therebetween, the three gears 251 to 253, 252 are revolved without rotating (rotating) about the fixed gear 251 so that the driving link 240 always maintains a constant direction. Even when the crank 111 is removed and operated, the driving link 240 always maintains a constant direction.

It is also possible to provide a chain (not shown) or a belt (not shown) instead of providing the connecting gear 253 as a connecting member between the fixed gear 251 and the idle gear 252. That is, the idle gear 252 and the fixed gear 251 are connected by a chain or a belt so that the idle gear 252 is operated to revolve the fixed gear 251.

The operation state of the embodiment according to the present invention will be described with reference to Figs. 4 and 6. Fig.

First, as shown in FIG. 4, when the right pedal 212 is positioned at the top dead center, that is, when the pedal 212 is pressed downward by using the foot in a state where the rotary link is upward with respect to the rotary shaft 251a, The idle gear 252 revolves while the connecting gear 253 of the retaining means 250 rides over the fixed gear 251. By this operation, the driving link 240 is moved forward . 6, the rotation link 230 rotates 90 degrees about the rotation axis 251a and is positioned in the same direction as the drive link 240 (see FIG. 6).

When the rotary link 230 rotates in this manner, the hub 220 rotates, and as a result, the rear wheel rotates.

Referring to FIG. 6, when a force is applied to rotate the hub 220, a force acts on the combined length of the rotating link 230 and the driving link 240, The driving link 240 rotates only the rotating link 230 in a state in which the driving link 240 is maintained in a constant direction regardless of the position of the rotating link 230 for the continuous operation. Therefore, it is possible to rotate without interfering with the ground.

In other words, by the pressing of the pedal 212, the driving link 240 can rotate the rotating link 230 while keeping the direction constant, and rotates the hub 220 connected to the rotating link 230, . In this case, it is a matter of course that the hub 220 can be rotated at a high speed by increasing the rotational force generated by the rotational link 230 by using a known speed increasing device.

7 to 9 show a second embodiment 300 according to the present invention. A driven sprocket 331, a drive sprocket 332, a rotary link 340, a drive link 350, and a direction maintaining means 360, as shown in Fig.

The hub 320 is a known means for connecting the spokes of the rear wheels.

The driven sprocket 331 is provided on one side of the hub 320.

The drive sprocket 332 is rotatably mounted on the frame F to transmit driving force to the driven sprocket 331.

Although the drive sprocket 332 and the driven sprocket 331 may be engaged directly with each other, the present embodiment is provided with the coupling gear 333 as a second linking member between the drive sprocket 332 and the driven sprocket 331 . The connecting gear 333 is rotatably coupled to the frame F.

The shaft of the drive sprocket 332 is fixed to one end of the rotation link 340 and the drive link 350 is connected to the other end. The rotation link 340 is rotated 360 degrees about the axis 332a of the drive sprocket 332 so that the axis 332a of the drive sprocket 332 becomes the rotation axis of the rotation link.

The driving link 350 is connected to the pedal shaft at the other end and drives the driving link 350 by pressing the pedal 312 to rotate the rotating link 340.

In this embodiment, direction maintaining means 360 is provided to keep the direction of the driving link 350 constant while rotating the rotating link 340.

The direction maintaining means 360 includes a fixed gear 361, an idle gear 362 and a connecting gear 363 as a first connecting member.

The fixed gear 361 is fixed to the frame F on the same axis as the rotating shaft 332a of the rotating link 340. [

The idler gear 362 is mounted on a rotary shaft 362a to which the rotary link 340 and the drive link 350 are connected and is fixed to the drive link 350. [

The connecting gear 363 is rotatably installed between the fixed gear 361 and the idler gear 362 and is disposed to be engaged with the fixed gear 361 and the idler gear 362, respectively.

The idle gear 362 and the connecting gear 363 are operated while revolving the fixed gear 361 at the center.

It is also possible that one or more connecting gears 363 and 333, which are the first connecting member or the second connecting member, are provided. However, if a plurality of connecting gears 363 and 333 are provided, they should be provided in an odd number.

When the number of teeth of the fixed gear 361 and the number of teeth of the idle gear 362 are equal to each other and a connecting gear 363 is provided therebetween, the three gears 361 to 363 are mechanically coupled 362 are revolved without rotating (rotating) about the fixed gear 361 so that the driving link 350 always maintains a constant direction. Even if the crank 111 is removed and operated, the drive link 350 always maintains a constant direction.

It is also possible to provide a chain (not shown) or a belt (not shown) instead of the connecting gears 363 and 333.

The operating state of the second embodiment 300 according to the present invention will be described with reference to Figs. 8 and 10. Fig.

First, as shown in FIG. 8, when the right pedal 312 is located at the top dead center, that is, when the rotary link 340 is upward with respect to the rotary shaft 332a, the pedal 312 is pressed downward The idle gear 362 revolves while the connecting gear 363 of the direction maintaining means 360 rides over the fixed gear 361. By this operation, the driving link 350 is kept in the constant direction State. With this operation, the rotation link 340 rotates around the rotation axis 332a and is positioned in the same direction as the drive link 350 (see FIG. 10).

The driving sprocket 332 connected to one end of the rotating link 340 rotates and the rotation of the driving sprocket 332 rotates the driven sprocket 331 And as a result, the rear wheel is rotated.

Also, although not shown, embodiments in which the power transmitting device 200 shown in Fig. 4 is provided on both sides of the rear wheel are also possible. That is, the hub 220 is provided with a rotation link 230 on both sides thereof, and the driving link 240 and the direction maintaining means 250 are provided on both sides of the rear wheel, respectively.

8 can be provided on both sides of the rear wheel, and the power transmission device 200 shown in Fig. 4 is provided on one side of the rear wheel, and the power transmission device 300 shown in Fig. It is also possible to provide the power transmission device 300 shown in Figs.

200: First Embodiment
210: bottom bracket 220: hub
230: rotating link 240: driving link
250: Direction maintaining means
300: Second Embodiment
310: bottom bracket 320: hub
331: driven sprocket 332: connecting gear
333: drive sprocket 340: rotating link
350: drive link 360: direction maintaining means
400: Third Embodiment
410: bottom bracket 420: hub
431: driven sprocket 432: connecting gear
433: drive sprocket 440: rotating link
450: driving link 460: direction maintaining means

Claims (9)

A hub to which the spokes of the rear wheels are connected;
A rotating link coupled to the hub to rotate the hub;
A drive link connected to the rotary link at one end and connected to the pedal shaft at the other end to rotate the rotary link by pressing the pedal; And
And a direction maintaining means for keeping the direction of the drive link constant.
The method according to claim 1,
Wherein the direction-
A fixed gear fixed to the frame with the same axis as the rotation axis of the rotary link;
An idle gear mounted on a rotating shaft to which the rotating link and the driving link are connected and fixed to the driving link; And
And a connecting member for linking the idle gear and the fixed gear.
3. The method of claim 2,
Wherein the connecting member is a connecting gear having at least one odd number of rotatable between the fixed gear and the idler gear.
3. The method of claim 2,
Wherein the connecting member is a chain or a belt that connects the fixed gear and the idler gear.
A hub to which the spokes of the rear wheels are connected;
A driven sprocket disposed at one side of the hub;
A driving sprocket rotatably mounted on the frame for transmitting driving force to the driven sprocket;
A rotating link to which an axis of the drive sprocket is fixed;
A drive link connected to the rotary link at one end and connected to the pedal shaft at the other end to rotate the rotary link by pressing the pedal; And
And a direction maintaining means for keeping the direction of the drive link constant.
6. The method of claim 5,
Wherein the direction-
A fixed gear fixed to the frame with the same axis as the rotation axis of the rotary link;
An idle gear mounted on a rotating shaft to which the rotating link and the driving link are connected and fixed to the driving link; And
And a first connecting member for linking the fixed gear and the idle gear.
6. The method of claim 5,
And a second connecting member for transmitting the driving force of the driving sprocket to the driven sprocket.
8. The method according to claim 6 or 7,
Wherein the first linking member or the second linking member is a link gear having at least one odd number of links.
8. The method according to claim 6 or 7,
Wherein the first linking member or the second linking member is one of a chain and a belt.
KR20130108340A 2013-09-10 2013-09-10 Power transmissiong apparatus using link KR20150029320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130108340A KR20150029320A (en) 2013-09-10 2013-09-10 Power transmissiong apparatus using link

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130108340A KR20150029320A (en) 2013-09-10 2013-09-10 Power transmissiong apparatus using link

Publications (1)

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KR20150029320A true KR20150029320A (en) 2015-03-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113485A1 (en) 2015-03-02 2016-09-08 Hyundai Motor Company Internal combustion engine cooling system with thermostat
WO2017109779A1 (en) * 2015-12-24 2017-06-29 Shacham Uri Cycle and a drive mechanism therefor
KR101966041B1 (en) * 2018-06-14 2019-04-04 이영문 Bicycle with propulsion unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113485A1 (en) 2015-03-02 2016-09-08 Hyundai Motor Company Internal combustion engine cooling system with thermostat
WO2017109779A1 (en) * 2015-12-24 2017-06-29 Shacham Uri Cycle and a drive mechanism therefor
KR101966041B1 (en) * 2018-06-14 2019-04-04 이영문 Bicycle with propulsion unit

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