KR100266468B1 - Oil pressure drive mode bicycle - Google Patents

Abstract

PURPOSE: A bicycle is provided to achieve power delivery without mechanical frictional resistance for easy travelling, to lengthen lift time by preventing wear of components and to deliver power regardless of front or rear wheels. CONSTITUTION: A hydraulic bicycle comprises a hydraulic pressure generator operated by rotational force of a pedal axle(1); a hydraulic motor(23) generating rotational force with receiving hydraulic pressure; a fluid extrusion tube(22) extruding fluid with the hydraulic motor; a fluid recovery tube(24) recovering the fluid with the hydraulic pump. A clutch device is installed to enable backup by releasing retreat preventive instrument. Upon stepping on a pedal, a drive gear(2) rotates and a driven gear(3) rotates to turn around a crankshaft(4). Pistons connected to piston rods(11'12') vertically reciprocate inside cylinders(12) to change rotational movement into linear reciprocative movement. Fluid is sucked or extruded. Accordingly the pistons descend and suction force is generated for hydraulic motors to allow the fluid into cylinders and upon rise, the fluid is transferred to an air compression tank(17).

Description

Hydraulic powered bicycle

The present invention relates to a hydraulically operated bicycle which is operated by hydraulic pressure by installing a hydraulic pump driven by a pedal and a hydraulic motor driven by the hydraulic pump in a low-power bicycle.

Conventional bicycles are known in the art, and everyone is known to install a sprocket having a different size on the pedal shaft and the rear wheel shaft, and to transmit power by chaining them.

In this type of bicycle, when a person rotates the pedal by foot, the sprocket installed on the shaft of the pedal rotates to rotate the chain, and the chain rotates the sprocket installed on the rear wheel shaft to rotate the rear wheel to move the bicycle forward. At this time, by changing the diameter of the sprocket can give a high speed and low speed change.

However, such a conventional bicycle is powered by the friction of the chain consisting of several nodes and the friction between the chain and the sprocket, which is difficult to drive the bicycle, especially when carrying load or climbing uphill. In addition, there is a disadvantage in that noise occurs when driving the bicycle due to friction between the chain and the sprocket, or the chain and the sprocket are worn down, which shortens the life of the bicycle.The failure of the chain is loosened or extended due to the wear of the chain and the sprocket frequently occurs. do. In particular, since chains and sprockets are completely exposed to rain and moisture, the oxidation corrosion is faster, resulting in a shorter life span. Therefore, there is an inconvenience to supply the lubricant frequently.

In addition, the lubricating oil supplied to prevent wear and corrosion of the chain has a closed end that gets on the driver's leg skin or pants.

And since the power is made only by mechanical power transmission by the chain and the sprocket, it is impossible to transmit power to the front wheel which performs the steering function, and has a structure that always transmits power only to the rear wheel.

Therefore, the present invention has been made to solve such a conventional closed end, the purpose of which is to transfer the power of the bicycle by the hydraulic pump and the hydraulic pressure by the hydraulic motor so that the power transmission is made without mechanical frictional resistance of the bicycle The driving is made easier, and the lubrication of the fluid that generates the hydraulic pressure prevents the wear of the parts due to friction, thereby prolonging the service life and transmitting power regardless of the front or rear wheels.

In another aspect, the present invention is to provide a bicycle having a variable speed change function to the hydraulic turbine, a hydraulic differential is installed on the rear wheel of the three-wheeled bicycle, and a retreat prevention device when the hill passes.

1 is a side view of the hydraulically driven two-wheeled bicycle of the present invention.

2 is an enlarged cross-sectional view taken along the line A-A 'of FIG.

3 is an enlarged cross-sectional view taken along the line B-B 'of FIG.

4 is a cross-sectional view taken along the line C-C 'of FIG.

Figure 5 is an enlarged perspective view of the main portion of the hydraulic motor of the bicycle of the present invention.

6 is a side view of the bicycle (three wheels).

7 is a plan view of the main parts of the bicycle (three-wheeled).

8 is an explanatory diagram of the same three-wheeled bicycle rear wheel drive.

* Explanation of symbols for main parts of the drawings

1,1 ': Pedal shaft 2: Drive gear

3: driven gear 4: crankshaft

5,6,6 ', 7,7': Frame 8: Medal

9,10: bracket 11,12: cylinder

11 ', 12': Piston Rod 13,14: Piston

15,16: Extrusion pipe 15 ', 16': Non-return valve

17: air compression tank 18: extrusion pipe

19: opening and closing cock 19 ': opening and closing lever

20: cable 21: lever

22,22 ', 22 ″: Extruded pipe 23: Hydraulic motor

24,24 ', 24 ″: Recovery pipe 25: Refill tank

25 ', 25 ″: Outflow pipe 26: Rotor

27: arm 27 ': bottom plate

28: tube axis 29: left wall

29 ', 29 ″: Fixed wing 30: Right wall

31: moving wall 31 ': moving wing

31 ″: distribution hole 32: outer disk

33: horizontal pin 34: shifting pulley

35: tube axis 36,37: spiral groove

38: shifting ring 39: inner protrusion

40: disk 41: horizontal pin

42: outer protrusion 43: groove

44: shaft 45: distributor

46: housing 46 ': bracket

46 ″: fixing member 47: wheel frame

48: tube shaft 48 ': bolt

49: fixed clutch 50: rear wheel shaft

50 ': rear wheel 51: rear wheel axle

51 ': extension part 51 ″: sliding key

52: tube shaft 53: nut

54: ratchet wheel 55: tube shaft

56: pin 57,57 ', 57 ″, 57' ″: ratchet

58: tooth 59: jaw

60: blocking 61: moving clutch

62: between L 63: cable

63 ': Lever 64: Frame

65: long axis 66: left rear wheel

66 ': Right rear wheel 67: Left hydraulic motor

67 ': Right side hydraulic motor 68,68': Left and right pulley

70: left and right confluence valve 71: left and right branch valve

72: vertical axis 73: opening and closing plate

74: left arm 75: right arm

76: handle shaft 77: left arm

77 ': right arm 78: left cable

78 ': Right cable

Hydraulic driving bicycle of the present invention for achieving the above object, in the bicycle, the hydraulic generating device which is operated by the rotational force of the bicycle pedal shaft, and is installed on the front or rear wheel shaft to receive the hydraulic pressure generated by the hydraulic generating device It consists of a hydraulic motor for generating rotational force, a fluid extrusion tube for extruding fluid from the hydraulic pump to the hydraulic motor between the hydraulic pump and the hydraulic motor, and a fluid recovery tube for recovering the fluid extruded to the hydraulic motor back to the hydraulic pump. do.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

FIG. 1 is a side view of the hydraulically driven two-wheeled bicycle of the present invention, and FIG. 2 is an enlarged cross-sectional view taken along the line A-A 'of FIG. 1, and is driven to the left end of the pedal shaft 1 (also may be right) as shown. The gear 2 is installed, and the left and right medals 8 supporting the pedal shaft 1 are extended so that the brackets 9 and 10 are installed upward, and the driven gear 3 engaged with the drive gear at the upper end thereof. Was installed. One end of the shaft of the driven gear 3 extends to the right to form the crank shaft 4.

The crankshaft 4 has two bends that are reflected. Pistons 13 and 14 were respectively connected to the two bent portions through piston rods 11 'and 12'. In addition, two cylinders 11, 12 having diameters of the pistons 13, 14 are fixedly coupled to the frames 5, 6, 7, and the pistons 13, 14 are respectively attached to the cylinders. By combining the rotational force of the pedal to the piston 13, 14 through the crankshaft (4) to be operated alternately to the linear reciprocating motion.

Upper portions of the cylinders 11 and 12 are respectively connected with fluid recovery tubes 24 'and 24 "for recovering fluid from the hydraulic motor 23, which will be described later. A piston 13 is connected to an end of each fluid recovery tube. The check valve (14) is provided with a non-return valve which opens during the suction stroke and closes during the compression stroke so that the fluid does not flow back.

In addition, air compression tanks 17 were installed on the upper portions of the cylinders 11 and 12. The air compression tank 17 is made of transparent synthetic resin and firmly fixed to the frame 6, and is connected to the upper portions of the cylinders 11 and 12 and the extrusion pipes 15 and 16 to reciprocate the pistons 13 and 14. The fluid extruded from the cylinders 11 and 12 is stored by the movement. At the end of each of the extruded pipes 15 and 16 located inside the air compression tank 17, a non-return valve 15 'which is opened at the compression stroke of the piston 13 and 14 and closed at the suction stroke ( 16 ') is installed.

An extruded tube 18 formed downward in the center of the bottom surface of the air compression tank 17 is formed, an opening and closing cock 19 is provided at the end of the extruded tube 18, and the opening and closing cock 79 is provided in the upper frame. A lever 19 'for activating) is provided and connected to the cable 20. And the opening and closing cock 19 was connected to the hydraulic motor 23 to be described later by connecting the extrusion pipe 22 for extruding the fluid. A safety valve (17 ") is provided at the top of the air compression tank (17) to provide a pressure gauge (17 ') indicating the pressure of the air compression tank (17) so as to know the pressure state and to prevent an accident in the event of abnormal pressure. Was installed.

The replenishment oil tank 25 is fixedly installed to the frame 6 at the upper portion of the air compression tank 17. The replenishment tank 25 is for replenishing fluid to the cylinders 11 and 12, and is connected to each cylinder by connecting outlet pipes 25 'and 25 "at the bottom. One end of 25) is connected to the cylinders 11 and 12 so as to be exposed to a position parallel to the upper surface of the piston 13 and 14 located at the bottom dead center.

The rear wheel is provided with a hydraulic motor 23 which receives the hydraulic pressure of the hydraulic pump and obtains the driving force by rotating the wheel. And the hydraulic motor 23 is provided with a continuously variable transmission. This continuously variable transmission has a torque change according to the size change of the space accommodating the oil supplied to the hydraulic motor 23. In other words, when passing through the pipeline by applying a constant force to the fluid to increase the inner diameter of the pipe flow rate is reduced while the pressure is increased, the narrower the inner diameter of the pipe uses a natural phenomenon that the pressure drops but the flow rate is faster.

First, the hydraulic motor is provided with a rotor 26 freely coupled to the rear wheel shaft 50 at an inner center of a cylinder having a predetermined length. The rotor 26 includes a shaft tube 28 rotatably provided on the rear wheel shaft 50 of the bicycle, a disc 27 perpendicular to the shaft tube at one end or the outer circumference of the shaft tube 35, and an outer circumferential edge of the disc 27. It consists of a cylinder integrally formed on both sides, and the disk-shaped left and right side walls 29, 30 which are perpendicular to the surface of the cylinder on the outer periphery on both sides of the cylinder. These are formed integrally with each other. And the inner side of the left side wall 29 has a length of about 1/2 of the width of the cylinder and the fixed blades 29 '(29 ") of the height of the left side wall 29 from the bottom protrudes a plurality of radial intervals in a radial shape In this case, the stator blades 29 'and 29 "consist of two plates spaced at predetermined intervals.

Between the left and right side walls 29 and 30, a moving trunk wall 31 having a diameter of the left and right side walls 29 and 30 and sliding on the outer surface of the cylinder, that is, the bottom plate 27 ', is provided. On the surface of the moving wall 31 facing the left wall 29, moving blades 31 ′ inserted into gaps between the fixed blades 29 ′ and 29 ″ spaced apart from each other form a separate space. A flow hole 31 " through which the fluid flows is bored in the moving wall 31 between the moving blades 31 '. In addition, one side of the plurality of transverse pins 33 passing through the right wall 30 is coupled to the surface of the movable interlining wall 31 opposite to the moving wing 31 ', and the other end of the transverse pin 33 is an outer disk (to be described later) ( 32 is connected to the side of the moving wall 31 and the outer disk 32 is integrally moved horizontally in the axial direction.

In addition, the housing 46 is hermetically covered and coupled to the periphery of the left and right side walls 29 and 30, and between one side of the housing 46 between the spaces of the fixed blades 29 and 30 and the moving blades 31 ′. A fluid extrusion tube 24 'for supplying oil is directionally connected in a direction to rotate the rotor 26, and the other side of the fluid recovery tube 22 is connected. The housing 46 has a bracket 46 "formed at the side end thereof and is firmly fixed to the fork frame 34 of the bicycle with the fixing member 46".

In addition, the side of the housing 46, which is opposite to the surface to which the bracket 46 'is connected, is fixed to the rim frame 47 supporting the upper and lower sides of the rim and the shaft tube 48 of the rim frame 47 is fixed to the clutch 49 to be described later. Freely coupled to the outer peripheral surface to support the housing 46. At this time, a groove was formed around the outer circumferential surface of the fixed clutch 49, and a plurality of bolts 48 'were tightened at regular intervals from the outside of the shaft tube 48 so that the end portion was slid into the groove of the annular frame 47. Therefore, the rotor 26 is freely and stably rotated inside the housing 46 so as not to move in the axial direction. Further, an extension portion 51 'extending to the right side of the rear wheel shaft tube 50 is provided, and a groove portion for inserting the extension portion 51' into the center of the left side of the fixed clutch 49 is formed, and the rear wheel shaft ( A sliding key 51 " was installed to rotate in the axial direction while being rotated together with 50. By this structure, the rear wheel shaft tube 51 is easily separated when the rear wheel is disassembled from the rear wheel shaft 50. 50 ') is easy to repair or replace.

In addition, the shift pulley 34 is installed at one side of the rotor 26. The shift pulley 34 is wound around cables 34 'and 34 ", which are connected to a shift lever 34"' provided in the front frame of the bicycle as shown in FIG.

A shaft tube 35 extending toward the rotor 26 is provided at the center of the transmission pulley 34, and the shaft tube 35 is rotatably installed around the shaft tube 28 of the rotor 26. Also, two rows of spiral grooves 36 and 37 are formed around the surface of the shaft pipe 35 of the speed change pulley 34. In addition, around the tube shaft 35 of the speed change pulley 34, a shift ring 38 that moves left and right along the forward and reverse rotation of the speed change pulley 34 and moves the outer disc 32 in the axial direction is disposed. The shifting ring 38 is formed with an inner projection 39 engaged with the spiral grooves 36 and 37 at an inner diameter, and an outer projection 42 which is the same as the inner projection 39 is formed around the outer surface. . Further, a horizontal hole is formed in the shifting ring 38, and a disk 40 fixed to the frame 6 'is provided on the outer periphery of the tube shaft 35 of the shifting pulley 34, and the shifting ring The horizontal pin 41 inserted into the horizontal hole of 38 is provided so that the transmission ring 38 moves in the axial direction on the horizontal pin 41.

In addition, a shaft tube 44 of the outer disk 32 is circumferentially disposed around the shift ring 38. On the inner circumferential surface of the shaft tube 44 of the outer disk 32 is formed a ring-shaped groove 43 in which the outer projection 42 protrudingly formed on the outer circumferential surface of the shifting ring 38 is slidably formed so that the shifting ring 30 is formed. It moves so that it moves with the outer disk 32 at the time of horizontal movement.

On the other hand, the hydraulically-driven bicycle of the present invention is provided with a retraction prevention device to ensure a position already climbed without being pushed back when climbing uphill. This retraction prevention device is provided with a ratchet wheel 54 on the rear wheel shaft 50 close to the wheel side disk 27 surface of the rotor 26, as shown in Figure 4, the ratchet wheel ( At least one ratchet 57 is engaged with the teeth 58 of 54. That is, a shaft tube 55 integrally formed at the central portion of the ratchet wheel 54 is provided so as to be freely rotated around the rear wheel shaft 50, and a plurality of pins 56 are provided on the disc 27. The ratchet 57 was installed in the pin 56 so as to face only one direction. And the spring is elastically installed as in FIG. 4 so that the ratchet 57 is always in contact with the teeth 58 of the ratchet wheel 54. At this time, the denser the teeth 58 of the ratchet wheel 54 are formed, the more sensitive the braking operation becomes.

In particular, the arrangement of the ratchet 58 is configured to have two jaws that are symmetrical by dividing the disc into two and having four ratchets 58 as a pair, but the first ratchet 57 'of the four ratchets 58 forming one jaw. Is fully engaged with the teeth of the ratchet wheel 54, the second ratchet 57 ′ barely rests on the teeth of the ratchet wheel 54, and the third ratchet 57 ″ is the tooth length of the ratchet wheel 54. At 2/4 of the position, the fourth ratchet (57 '") is positioned at the 3/4 position so that the braking operation can be performed quickly.

In addition, the hydraulic-driven bicycle of the present invention is provided with a clutch device to enable the reverse to release the retraction prevention device.

This clutch device provided the fixed clutch 51 to the rear wheel shaft 50 so that rotation was free. The movable clutch 61 which extends along the shaft pipe 55 of the ratchet wheel 54 to the left side and is axially movable through the sliding key 52 in the axial direction on the outer circumference thereof and rotates together with the ratchet wheel 54. ) Is installed. At this time, a spring is elastically installed between the movable clutch 61 and the ratchet wheel 54 so that the movable clutch 61 is in contact with the fixed clutch 49.

In addition, a tube for guiding the cable 63 for clamping the clutch is coupled to the rim frame 47 coupled to the side of the housing 46 as described above, and rotated by axial coupling to the inner surface of the rim frame 47. It was connected to one end of the L-shaped lever 62. The other end of the L-shaped lever 62 forms a sliding groove on the outer circumferential surface of the movable clutch 61 and is slidably coupled thereto so that the movable clutch 61 is free to rotate and moves in the axial direction by the cable 63. To make it work. The other end of the cable 63 was extended to the driver's seat and connected to the lever 63 '.

Since the structure of the hydraulic motor is operated by connecting only the hydraulic extrusion and recovery pipes from the hydraulic pump, it is possible to install not only the rear wheel but also the front wheel and the front and rear, respectively.

Example 2

The hydraulically-operated bicycle of the present invention can be implemented on a three-wheeled bicycle. The principle is the same when carrying a hydraulically driven bicycle on a three-wheeled bicycle. However, since the left and right hydraulic motors 67 and 67 'driving the left and right rear wheels are installed on the rear wheels, the rotational radius of the left and right rear wheels is different when the driving direction is left and right. For this purpose, a differential device as shown in FIG. 8 is installed.

First, the three-wheeled bicycle is provided with a frame 64 for supporting the storage box, and a long axis 65 in the transverse direction is provided at the lower portion thereof. The above-described hydraulic motors 67 are installed on both ends of the long shaft 65 so that the shift pulleys are positioned inward, so that the left and right hydraulic motors 67 and 67 'are constituted, and the left and right rear wheels 66 and 66 are located on the outside thereof. ') Is made by assembling.

The fluid extrusion pipe 22 which is connected to the air compression tank 17 and transmits the hydraulic pressure is bisected into the left and right fluid extrusion pipes 22 'and 22 "through the left and right branch valves 71, and the left and right hydraulic motors 67 ( 67 ') and the left and right fluid return pipes 24' ", 24" "drawn out from the left and right hydraulic motors 67 and 67 'are connected to one fluid return pipe 24 through the left and right convection valve 25. Are joined to the cylinders 11 and 12 as described above.

The left and right confluence valves 25 and the left and right branch valves 71 installed as described above are vertically overlapped, and the left and right fluid return pipes 24 ′ ′ and 24 ″ branched to both sides interlocked with the vertical axis 72 inside each of them. ) And an opening and closing plate 73 for opening and closing the flow path of the left and right extrusion pipes 22 'and 22 ".

In addition, the upper end of the vertical axis 72 is installed at both sides so that the left and right arms 74 and 75 are perpendicular to the opening and closing plate 73, and the left and right arms 74 and 75 are also provided on the handle shaft 76 to be the same. Cables 78 and 78 'were connected to the arm in the direction. Accordingly, the cables 78 and 78 'are pulled and released by the left and right arms 77 and 77' which are rotated to the left and right according to the steering direction of the handle, so that the left and right arms 74 and 75 are a '. It is rotated within the interval of -b '. At this time, the opening and closing plate 73 installed on the vertical shaft 72 is also rotated to open and close any of the flow paths.

Looking at the hydraulic-driven bicycle operating state of the present invention having such a structure as follows.

When the driver rolls the pedal, the driving gear coupled to the pedal side rotates, and the driven gear 3 engaged with the driving gear 2 rotates to rotate the crank shaft 4. Pistons 13 and 14 connected to the piston rods 11 'and 12' by the rotation of the crankshaft 4 alternately reciprocate vertically in the cylinders 11 and 12 to linearly reciprocate the rotational movement. Change to exercise This operation attracts and extrudes fluid.

When one side piston (13) 14 is lowered, a suction force is generated to introduce fluid from the hydraulic motor (67) (67 ') into the cylinder (13) (14), and when it rises again, pushes the introduced fluid to push the extrusion pipe ( 15) (16) through the air compression tank (17). At this time, during the extrusion operation of the pistons 13 and 14, the non-return valves 15 'and 16' installed in the extrusion pipes 15 and 16 are opened and at the same time, the fluid recovery pipes 24 'and 24 "are opened. The non-return valve installed in the valve is closed, and vice versa during suction stroke.

On the other hand, once the fluid is pushed to the air compression tank 17 by the piston 13, 14 alternately operating air is compressed. The reason for compressing the air in this way is that the operation of the pistons 13 and 14 is non-continuous, so that the operation of the pistons 13 and 14 does not change the pressure to a uniform pressure. You can't drive quietly because your bike is rocking. Therefore, in order to be able to maintain the force of the piston 13, 14 which acts instantaneously and periodically.

The pressure of the compressed air is rectified to a uniform pressure to pressurize the fluid to the hydraulic motor 23 through the fluid extrusion pipe (22). The fluid pushed into the hydraulic motor 23 rotates the rotor 26.

That is, the rotor 26 is provided in the hydraulic motor 23 as described above, and a plurality of spaces formed by the fixed blades 29 'and 29 "and the moving blades 31 formed on the outer circumference of the rotor are provided. The extruded fluid is rotated by the pressure of the rotor 26 and then returned to the hydraulic pump through the fluid return pipe 24. As such operation is performed, the hydraulic fluid is extruded. The rotor 26 of the motor rotates continuously, and the rotor 26 generates a driving force by rotating the clutch and eventually rotating the wheel.

In the case of the three-wheeled bicycle as in the second embodiment, when the direction change is performed, the differential device operates to smooth the direction change. That is, when the steering angle of the handle is given to the left side, the handle shaft 76 rotates to the left by the given steering angle, and at the same time, the left and right arms 77 and 77 'installed on the handle shaft 76 also rotate. By this operation, the right cable 78 'of the connected cables 78 and 78' is tensioned and the left cable 78 is released. Accordingly, the right and left confluence valves 70 and the right arm 75 of the left and right branch valves 71 connected to the right cable 78 'are pulled to rotate the vertical shaft 72 to the left and the opening and closing plate installed on the vertical shaft 72. 73 blocks the flow paths of the left return pipe 25 'and the left extrusion pipe 26' and opens the flow paths of the right return pipe 24 "and the right extrusion pipe 22". The hydraulic pressure drives the right hydraulic motor 67 'along the open flow path, and the hydraulic supply of the left hydraulic motor 67 is interrupted to free the rotation of the left rear wheel 66. By this action, the direction to the left is smoothly made.

In addition, when the handle is rotated to the right, the opposite phenomenon occurs as described above, so the right rear wheel 66 'is freely rotated so that the direction to the right is smoothly changed.

You also need to shift your bike uphill, flat or downhill.

At this time, the speed of the bicycle is controlled by operating the shift lever 34 ". That is, when the shift lever 34" is advanced or retracted, the shift pulley 34 is rotated and the shift ring 38 is rotated by this rotation. The spiral grooves 36 and 37 are moved to the left or the right.

And the outer disk 32 is also moved to the left or right by the ring-shaped groove 43 is slidably inserted into the outer projection 42 of the shifting ring 38, it is connected to the outer disk 32 by a transverse pin 33 The moving wall 31 moves to the left or the right. If it moves to the left side, the moving wall 31 moves toward the left wall of the rotor 26, and the moving blade 31 ′ of the moving wall 31 is inserted into the fixed blades 29 ′ and 29 ″. The space in which the fluid is filled is narrowed, and the rotor 26 rotates at a high speed because the space is filled quickly even with a small amount of fluid, but the torque drops.

On the contrary, when the shifting pulley 34 is rotated in reverse by the shift lever 34 "and the shifting ring 38 moves to the right side, the shifting ring 38 and the outer disk 32 move together. Since the partition wall 31 moves to the right, the outer space of the rotor 26, which is filled with fluid, becomes large, and the fluid is filled a lot, which causes a long time for the fluid to be filled in the space, so the rotational speed of the rotor 26 is increased. However, if the gear is shifted to the proper speed by the above operation, the shift lever is fixed by fixing the shift lever to maintain the shifted speed.

On the other hand, if you climb uphill by bicycle, if the slope of the uphill is not only a lot of force, but also when the load is loaded with a lack of force to pedal, the bicycle will retreat. Especially if you park your bicycle on a slope, you will retreat. At this time, the retraction prevention device is operated to prevent the retraction of the bicycle. That is, when the bicycle is retracted and the wheel is reversely rotated, the ratchet wheel connected with the clutch to rotate together with the wheel is retracted. At this time, the ratchets 57, 57 ', 57 "installed around the ratchet wheel 54 are retracted. 57 '") bites the teeth 58 of the ratchet wheel to prevent reverse rotation. Thus, the bicycle is prevented from retreating. Once the pedal is continuously pressed because the bicycle does not retreat, the fluid continues to be pushed to the rotor 26 and the compression force is added, so that the bicycle moves forward little by little.

In particular, since the hydraulic pressure is accumulated in the air compression tank 17 by the compression of air, the rolling force of the pedal and the hydraulic pressure accumulated in the air compression tank 17 are combined to make it easier to ascent uphill. In addition, when the bicycle is stopped by operating the lever 21 connected to the cable by closing the opening and closing cock 19 installed in the lower portion of the air compression tank 17, the compressed pressure is accumulated in the air compression tank 17 Therefore, when the opening and closing cock 19 during the next run can be made easier the next run. In addition, the rear wheel stops when the brake is applied while driving, but when the brake is released after stopping, the rear wheel may be driven again because the hydraulic pressure accumulated in the air compression tank is continuously applied.

In order to prevent this, it is preferable that the opening and closing cock 19 is interlocked with the brake so that the opening and closing cock 19 can be automatically closed when the brake is operated.

As such, the bicycle is not retracted by the retraction prevention device, but there are times when it is necessary to retreat. At this time, the cable 63 is pulled to separate the movable clutch 61 from the fixed clutch 49. In this case, since the rear axle tube 71 is freed from the ratchet 57, retraction is free.

And the braking of the bicycle is braked by a known brake device.

On the other hand, equipped with a small engine with a pedal to operate the hydraulic pump through it can be more convenient to ride the bike.

Although the hydraulically driven power transmission device has been described in a bicycle, it can be applied to motorcycles, three-wheeled motorcycles, various small vehicles, automobiles, and the like, and when applied to large trucks, even greater effects can be obtained.

Since the hydraulically driven bicycle of the present invention transmits the rolling force of the pedal to the wheels through the fluid, the frictional resistance does not occur, so there is no power loss, and the hydraulic power generated by the fluid is evenly distributed to each part. Because of the lubrication action, there is an effect to prevent wear and corrosion of parts. In particular, since noise is not generated, a quieter driving can be performed, and a larger torque can be obtained by hydraulic pressure, which has the advantage of less power than a conventional bicycle which is powered by a chain. In addition, since the hydraulic pressure is accumulated in the air compression tank, the compressive force accumulated in the pedal rolling force when climbing uphill has an advantage of being able to easily climb even if the slope is severe. When driving downhill, lock the opening and closing cock by pulling the lever, and press the pedal within the range of fatigue so as to accumulate the pressure in the air compression tank and open the opening and closing cock on the uphill, which makes it easier and faster to climb.

In addition, the present invention can be shifted to high speed and low speed depending on the terrain by the continuously variable transmission. In particular, the structure of the transmission is simple and small in volume, so the installation is simple, but has an excellent transmission effect.

In addition, since the reverse rotation prevention device is installed, when climbing up a steep incline, especially when carrying heavy loads and no more climbing, the reverse rotation prevention device operates to prevent the bicycle from retreating.

Claims (8)

A bicycle comprising: a hydraulic pressure generating device operated by a rotational force of a pedal shaft, a hydraulic motor installed on the front or rear wheel shaft to receive hydraulic pressure generated by the hydraulic generating device, and generating a rotational force, and a hydraulic pressure between the hydraulic pump and the hydraulic motor. A bicycle comprising a fluid extrusion tube for extruding fluid from a pump to a hydraulic motor and a fluid recovery tube for recovering the fluid extruded to the hydraulic motor back to the hydraulic pump, wherein the hydraulic generator is a crank connected to a pedal shaft by a power transmission device. At least one cylinder connected to the shaft, an extruded pipe equipped with a non-return valve at the top, and a fluid recovery pipe and a piston rod connected to the crank shaft are reciprocated in the cylinder to change the rotational movement to a linear movement to generate hydraulic pressure. Piston and the upper part of the cylinder is connected to the extrusion pipe and the fluid extrusion pipe is connected to one side A hydraulically driven bicycle comprising: an air compression tank for receiving hydraulic fluid fed from an air cylinder and compressing air to supply hydraulic pressure to the hydraulic motor through a fluid extrusion pipe. The hydraulically operated bicycle according to claim 1, further comprising a supplementary oil tank having a fluid outlet port exposed to the inside of the cylinder when located at the bottom dead center of the piston and connected to the fluid outlet port by an outlet pipe to replenish the fluid. . The hydraulically driven bicycle according to claim 1, wherein an opening and closing cock is installed in a fluid extrusion pipe connected to a lower portion of the air compression tank. According to claim 1, wherein the hydraulic motor has a rotor rotatably coupled to the front wheel shaft in the inner center of the cylinder having a predetermined length, the rotor is a shaft pipe freely installed on the rear wheel shaft of the bicycle and one end or the outer circumference of the shaft pipe It consists of a disk perpendicular to the shaft, a cylinder integrally formed on the outer periphery of the disk, and a disk-shaped left and right wall formed perpendicular to the surface of the cylinder on the outer periphery on both sides of the cylinder, with fixed blades between the left and right walls. It is provided with a plurality of intervals, and the housing is hermetically covered around the left and right side walls to be firmly fixed to the fork frame supporting the front wheel or the rear wheel of the bicycle with a fixing member, and on one side of the housing between the spaces formed by the fixed blades and the moving wings. The fluid extrusion pipe for supplying oil is connected and at the same time the fluid recovery pipe is connected to the other side, and the fixing member Hydraulically-operated bicycle, characterized in that the other side of the housing surface is coupled to the rotational frame to the outer ring surface of the fixed clutch to the housing surface. According to claim 3, Between the left and right side walls of the rotor is moved between the sliding between the bottom of the cylinder and sliding, and the moving blade which is inserted between the gap between each fixed blade spaced apart on the moving wall facing the left wall. Each of which has an independent space, and the moving wall between the moving blades has a flow hole through which fluid flows, and on the opposite moving wall surface of the moving blade, the outer disk is connected to the outer disk by a plurality of transverse pins passing through the right wall. It moves horizontally in the axial direction together with a variable speed pulley freely rotated around the shaft tube of the rotor and a wide spiral groove formed around the surface of the shaft tube extending the shaft portion of the variable speed pulley, respectively, and is engaged with the spiral groove inside. The outer disk is provided on the inner and outer circumferential surfaces of the outer disk while moving left and right according to the forward and reverse rotation of the speed change pulley. Hydraulic transmission, characterized in that it comprises a transmission ring for moving in the axial direction, the inner peripheral surface of the shaft tube of the outer disk is provided with a transmission device formed with a ring-shaped groove in which the outer projection projected to the outer peripheral surface of the transmission ring is slidably inserted. Expression bike. According to claim 1, wherein the left-right confluence valve and the left-right branch valve of the three-wheeled bicycle is vertically overlapped, and the vertical axis having a common in the center is rotatably installed, and each of which is branched to both sides in conjunction with the vertical axis Opening and closing plates for opening and closing the flow path of the left and right return pipe and the left and right extrusion pipe are installed, the left and right arms are installed at both sides at the upper end of the vertical shaft, and the left and right arms are rotated from the left and right according to the steering direction of the handle shaft, Hydraulically powered bicycle, characterized in that the arm is further provided with a differential connected to each of the cables. The rotating clutch of claim 6, wherein the rotation of the bicycle wheel shaft is freely coupled to the rear wheel shaft and rotated together with the rear wheel, and the ratchet wheel is rotatable while being axially movable around the outer circumference of the shaft pipe of the ratchet wheel. A cable having a moving clutch coupled to the disk wheel coupled to the side of the housing to clamp the clutch, and the end of the cable connected to one end of the L-shaped lever rotated by the shaft on the inner surface of the disk wheel; The other end is formed with a sliding groove on the outer peripheral surface of the moving clutch and coupled to the sliding so that the clutch clutch to move in the axial direction by the cable while allowing the moving clutch to rotate freely characterized in that the hydraulic drive, characterized in that Expression bike. The ratchet wheel of claim 7, wherein the ratchet wheel is installed on the rear wheel shaft adjacent to the disk constituting the rotor, and the disk has a state in which the ratchet wheel is always in contact with the ratchet wheel by a spring while facing a predetermined direction. Hydraulically driven bicycle further comprises a retraction prevention device is installed at least one ratchet to engage.