KR102049658B1 - bicycle accelerator power driving device - Google Patents

Abstract

The present invention relates to a bicycle rear wheel accelerator for driving speed improvement, the center axle shaft (11), sun gear (12), planetary gear (23), ring gear (25), planetary gear carrier (24), spring device The gearbox of the gear wheel of the planetary gear device is installed by applying an acceleration device including a gearbox 21 to a gear that can be easily mounted in the housing 51 of the driving wheel, the transmission chain gear method 21 and a bicycle having a general chain drive method. By increasing the rotational speed of the driving wheel than the normal speed of the bicycle by doubling according to the ratio and the elastic strength of the spring, it is possible to increase the driving speed with a small force, which requires a lot of force for the bicycle user to speed up or climb the slope. There is an effect, and by changing the various coupling methods of each accelerator, it is possible to make a bicycle with various types of acceleration effects.

Description

Bicycle accelerator power driving device

The present invention relates to a bicycle acceleration power unit in detail installed on the central axis of the bicycle rear wheel, in connection with the central axle shaft of the driving wheel to accelerate the rotational force of the driving wheel when driving, bicycle speed with a small force The present invention relates to an accelerator for a bicycle for improving driving speed, which makes it easier to produce.

Bicycles are mainly used as a means of transportation and transportation, but recently they are also used for the purpose of physical fitness through leisure activities and sports.

However, there are many differences in the power required for bicycles depending on various roads and driving conditions such as uphill, flat, and downhill.

When starting, accelerating, or uphill, it requires a lot of power to operate the bicycle, so it is necessary to shift at a low speed to reduce the power. The transmission is installed to change the position of the chain so that various speeds can be changed.

However, even if the speed change through the transmission does not reduce the weight of the bicycle user, the weight of the bicycle body and the meshing load of the chain gear,

Frequent shifting is easy to cause a breakdown of the gearbox, and the sense of speed decreases during shifting.There are also electric bicycles that reduce the burden on the bicycle users by supplying external power to the load on the bicycle. In connection with the inconvenience of charging and the high price of the bicycle, there is a problem of reducing the beauty of the use of bicycle exercise.

In order to improve such a problem, Korean Utility Model Registration No. 20-418803 (name of the invention: a bicycle driving device using a planetary gear device) has been disclosed.

That is, the utility model is a planetary gear device applied to the lung side, such a structure, since the planetary gear device is installed on the axis of rotation of the lung moon such as tricycle, unicycle, ordinary bicycle, Since the main power is made only in the lung moon, the actual speed increase is not so great. As a result of the combination of various accelerators, there is a disadvantage in that various types of bicycles can not be made in accordance with local road characteristics.

Therefore, the main object of the present invention, by simply installing a variety of accelerators on the rear wheel drive shaft of the bicycle so as to minimize the force required for various driving conditions of the bicycle, the bicycle power drive device to easily accelerate the speed of the bicycle By providing a wider choice of bikes that meet the characteristics of the road and the purpose of the purpose to increase the fun of the bike users.

In order to achieve the above object, a specific embodiment of the bicycle accelerator for improving the running speed of the present invention will be described in detail with reference to the drawings. (However, 28-36 spokes combined with spiral springs and bicycle tires are omitted for convenience of description and drawing.)

Acceleration power drive device for a bicycle for improving the running speed of the present invention, the central axle shaft portion 10, the first acceleration device 20, the second acceleration device (10) capable of supporting and fixing each acceleration device to the bicycle frame ( 30), the third acceleration device 40, and the housing portion, the central axle shaft 11 is a certain portion of both ends are engraved with a male screw, the sun gear 12 and the cone-shaped elliptical cam at the central portion of the axle shaft (13) is fixedly installed, fixed to the final bicycle frame with a bearing (16), a nut (15), a cone (14),

The first acceleration device 20 is a medium multi-stage transmission gear gear or a general chain gear which transmits rotational power by the lung moon is fastened and fixed to a gear-shaped coupling jaw (aka: freewheel) 22, and the inside of the freewheel is engraved with a female screw. It is assembled with a male screw engraved on the protruding part of the planetary gear carrier 24. FIG. 6 shows a carrier hollow tool 26 in the center of the carrier so that the axle shaft 11 penetrates and one side of the sun gear 12. The surface is made of fine grooves to be combined to prevent separation and clearance of the carrier.

Inside the planetary gear carrier 24, a number of planetary gears 23 are combined, and each planetary gear is in contact with the sun gear 12 fixed to the central axle shaft 11, and each planetary gear outwardly. It is installed in contact with the ring gear (25).

2 is a cross-sectional view for explaining the principle of operation of the first acceleration device, the rotational force based on the closing ring of the moon moon by the planetary gear device, the rotational power based on the moon daling is applied to the multi-stage, general chain gear of the rear wheel drive wheel shaft When the rotational power is transmitted, the planetary gear carrier 24 is rotated by the transmission of one-way force installed in the freewheel (one-way clutch), and the respective planetary gears 23 installed in the carrier rotate and rotate around the solar gear axis. The ring gear 25 in contact with the outside is rotated.

For reference, the main components of the planetary gear system are composed of a sun gear, a ring gear, a planetary gear, and a planetary gear carrier.The planetary gear is a rotational motion with respect to the ring gear and the ring gear by rotating the planetary gear based on the sun gear. According to the combination ratio of the number of teeth, the number of teeth of the sun gear, and the number of teeth of the planetary gear, it is a means for shifting the rotating body by the principle of forward, reverse rotation, acceleration, and deceleration, to fix the sun gear of the present invention and input the planetary gear When the ring gear is output, the acceleration output in the same direction (forward rotation) can be obtained based on the coupling ratio of the gears.

The ring gear 25 is welded with the housing 51, or the female screw is engraved on the outer diameter of the ring gear, and the female inner thread is engraved to integrate the female and male screws. The housing can be divided into two symmetrical shapes for ease of assembly. In this case, the nut or the snap ring 54 may be fixed through the fixing connection bar.

The second accelerator 30 is installed on the central axle shaft, and includes an auxiliary hub 31, a tension spring 35, and a circular plate 32 that spirally holds the tension spring. The auxiliary hub and the circular plate 32 are It is made of one, between the axle shaft and the auxiliary hub is inserted into the bearing hub 16 to rotate smoothly and the tension spring is composed of two and each tension spring on one side of the inner diameter of the inner fixing pin 52 of the housing, It is coupled to the outer diameter tension spring inlet 33 of the auxiliary hub 31 in a spiral shape through a circular plate (32).

As shown in the cross-sectional view of Figure 3, the tension spring 35 is coupled in a spiral form to have a rotational elasticity, the tension spring coupled to the outer diameter protruding inlet 32 of the auxiliary hub 31 is fixed by the action of the reaction. The tension spring connected to the inner diameter of the housing has a rotational elasticity by the fixed role of the spring coupled to the auxiliary hub so that the housing generates rotational force based on the elasticity of the spring itself without the help of an internal combustion engine or an electric motor. This rotates together with the first accelerator 20 to make the housing rotate more quickly.

The third acceleration device 40 is composed of a pulley 41, the torsion spring 42, the torsion spring coupling bar 43, the elliptical cam 13 of the cone shape fixed to the central axle shaft, the spring connection member and the second It can be installed on both or one side of the accelerator.

The torsion spring 42 is made of a shape of one side and a shape of one of which is longer than a circular spring, and inside the spring, the torsion spring coupling bar 43 enters, and one side of the spring is toward the pulley 41 and the other side. Is coupled to the perforated housing 51.

One side of the pulley 41 is inserted into the fixed connecting bar, and one side of the torsion spring 42 is bitten, and the other side is in contact with the cone-shaped elliptical cam 13 in contact with the axle shaft, as shown in FIG. One side of the pulley is in contact with the fine groove of the oval cam to prevent the pulley from being separated.

Figure 4 is a cross-sectional view for explaining the operation of the third acceleration device when the rotational force based on the closing ring to the housing 51 is rotated by the first and second acceleration device, the torsion spring coupled through the fixed connecting bar of the housing (42)) When the pulley is snapped to the long elliptical cam through the pulley 41 in contact with the cone-shaped elliptical cam 13 fixed to the central axle shaft 11, the torsion spring is wound to a certain portion, thereby generating rotational elasticity. Rotational force increases the rotational force in the housing 51, which helps the housing to rotate faster, more quickly and easily rotate the housing, and also the rotational force of the planetary gear 23 through the ring gear 25 connected to the housing As a result, the multi-speed transmission gear 21 via the planetary gear carrier 24 and the general chain gear can be easily rotated while increasing the speed.

The use of abandoned, existing bicycle parts can save resources and reduce the cost of purchasing bicycles. According to the purpose of use, various bicycles can be manufactured according to claim 5, and resource-saving and inexpensive and improved bicycles can be supplied. .

3 is a cross-sectional view for explaining an operation state of the auxiliary hub 31 of the second acceleration device 30. The tension spring 35 is fixed to the protruding inlet 33 of the auxiliary hub device and the other side of the housing ( When fixed to the inner diameter of 51), the force of the left spring coupled to the auxiliary hub protruding inlet is to the left and the force of the right spring to the right is generated. The fixed role of, the force of the tension spring, coupled to the inner diameter of the housing 51, the elastic force to bounce in one direction of the right and left, the rotational force is generated.

FIG. 6 is a perspective view illustrating a coupling state of the housing 51. The housing 51 may be configured as a cylindrical housing 51 or two symmetrical shapes, a concave and a bulge. A nut or snap ring is fixed through a fixed connecting bar, and in the case of a cylindrical shape, the tooth shape is engraved on the inner diameter of the housing on the opposite side of the multi-group gear and the general chain gear, and the circular plate 53 in which the tooth shape is engraved is snapped (54). Or, it can be assembled by engraving the female screw on the end of the inner diameter and engraved male screw on the circular plate (53).

As described above, the combination and combination between the accelerators that can improve the speed of the driving wheel can improve the speed of the bicycle user more than twice the same force required to rotate the lungs one time, so that the bicycle users Can have

As mentioned above, although embodiment of this invention was described in detail with reference to drawings, the scope of the present invention is not limited to a specific embodiment, Comprising: It should be interpreted in the attached Claim.

In addition, one of ordinary skill in the art will understand that many or all of the accelerators may be selectively combined or combined to allow many strain accelerators.

By making acceleration power device using planetary gear device and spring device and using it as a bicycle power source, speed increases according to the purpose of the bicycle user and saves time and less power when driving the same distance with high torque. This can increase the excitement of using a bicycle, which can double the pleasure of transportation and leisure hobby.

1 is an exploded perspective view showing the acceleration power drive device for a bicycle of the present invention
2 is a cross-sectional view for explaining the operating state of the first acceleration device for a bicycle of the present invention
3 is a cross-sectional view for explaining the operating state of the second acceleration device for a bicycle of the present invention
4 is a cross-sectional view for explaining the operating state of the third acceleration device for a bicycle of the present invention
5 is a state diagram of the planetary gear carrier and the sun gear coupling of the first acceleration device for a bicycle of the present invention
6 is a coupling state diagram of the bicycle housing of the present invention

[Measures to solve the problem: Details for carrying out the invention]

10. Central Axle Shaft
11. Axle shaft 12. Sun gear 13. Cone elliptical cam 14, cone 15, nut 16, bearing
20. First Accelerator
21. Multi-speed gearbox 22. Freewheel 23. Planetary gear 24, Planetary gear carrier
25, ring gear 26, carrier heavy tool
30. Second Accelerator
31. Auxiliary hub 32. Circular plate 33. Tension spring inlet 34. Tension spring protrusion fixture
35. Tension Spring
40. Third Accelerator
41. Pulley 42. Torsion spring 43. Pulley connecting bar
50. Housing part
51. Housing 52. Tension spring fixture 53. Housing coupling disc 54. Snap ring

Claims (7)

The central axle shaft part 10 fixed to the bicycle frame, the first acceleration device 20, the second acceleration device 30, the third acceleration device 40, and the housing part 50, the first acceleration device is The medium multi-stage transmission chain gear 21, the general chain gear, is fixed to the gear-type coupling jaw (freewheel) to transmit rotational power by the pedestal, and the internal thread of the freewheel 22 is engraved with a planetary gear carrier ( It is combined with the male screw engraved in the protrusion of 24), the inner gear carrier is in contact with the sun gear 12 fixed to the central axle shaft 11, the outer side is installed in contact with the ring gear 25, the ring The outer surface of the gear is in contact with the housing 51 by welding or screwing,
The second acceleration device 30 is composed of a bearing 16, auxiliary hub 31, tension spring 35, circular plate 32 tension spring inlet 33, the auxiliary hub and the circular plate is made of one, A bearing is inserted between the axle shaft and the auxiliary hub so that the auxiliary hub can be rotated smoothly. The tension spring consists of two tension springs. One of each tension spring is fixed to the inner fixing pin 52 of the inner diameter of the housing, and the other is the auxiliary hub 31. It is coupled to the tension spring protrusion fixture 34 in a spiral shape through a circular plate to the outer diameter protruding inlet of 33,
The third acceleration device 40 is composed of a cone-shaped elliptical cam 13, a torsion spring 42, a pulley 41, a spring coupling bar 43, a snap ring, and one end of the spring of the torsion spring is in a L-shape and the other. One end is made in a straight shape, and the spring coupling bar 43 enters into the wound torsion spring, and the torsion spring straight side is coupled to the pulley side and the other L-shape is coupled to the perforated housing 51. By engaging the snap ring to the torsion spring coupling bar came out to prevent the torsion spring is wound around the pulley (41) is urgently pulled apart,
The housing part 50 may be composed of two in one piece or a symmetrical type of concave and block type for convenience of assembly and joining. In the case of the symmetrical shape, the housing part 50 may be fixed by a nut or a snap ring through a fixing connecting bar. Bicycle characterized in that. According to claim 1, wherein the second acceleration device (30) is a bearing is inserted between the central axle shaft (11) and the auxiliary hub (31) to facilitate the rotation of the auxiliary hub, the auxiliary hub device is a clock through a circular rotating plate Two protruding fixtures 34 are symmetrically engraved on both left and right diagonal sides so that the spiral springs bent in a spiral shape can be fixedly inserted, and the tension springs 35 on the left and right sides of the circular rotating plate 32 maintain the spiral shape. The spring inlet 33 is engraved, one end of the spiral bent tension spring is fixed to the fixing pin 52 of the housing, one end is fixed to the protruding fixture 34 of the auxiliary hub device, the elasticity of the spring ( Bicycle, characterized in that to increase the rotational force of 51), According to claim 1, wherein the third acceleration device comprises a torsion spring (42), a pulley (41), a spring coupling bar (43), a snap ring, and is installed between both the second acceleration devices (30) or the first and second acceleration devices. One side of the torsion spring is connected to the pulley through the coupling bar, the other is connected to the housing through the coupling bar, and when the housing 51 rotates, the cone-shaped elliptical cam of the second accelerator is fixed to the central axle shaft 11. The torsion spring is wound when the pulley rotates along the long side of the oval cam along the short side, and the winding tension of the torsion spring is rapidly released as the pulley falls from the long side of the oval cam, increasing the rotational force of the housing. The bicycle which can let you do it. According to claim 1, the central axle shaft (11) is a certain portion of both ends are engraved with a male screw, a sun gear 12, a cone-shaped oval cam 13 is installed in a predetermined portion inside the central axle shaft, the sun gear Is engaged with a plurality of planetary gears 23 of the first acceleration device 20, the cone-shaped elliptical cam can be installed on one or both sides of the secondary accelerator auxiliary hub, but the ball bearing is inserted into the inner cone shape, The pulley 41 of the third acceleration device is engaged with the auxiliary hub and the outer elliptical cam shape is inserted, and the cone 14, the bearing 16, the washer, etc. are inserted into both ends of the male screw engraved, and the nut is mounted on the bicycle frame. By fixing through 15, the bicycle, characterized in that to prevent the maintenance and separation of the play of the housing 51, According to claim 1, the first acceleration device 20, the second acceleration device 30, the third acceleration device (40) all combined, to make an acceleration drive device, each of the acceleration drive device with only one accelerator The bicycle, characterized in that the first and second accelerator combination, the first and third accelerator combination, the second and third accelerator combination can also make a variety of acceleration drive device. According to claim 1, the housing unit 50 may be composed of two housings, cylindrical, concave, and block, depending on the coupling method between the accelerator, in the case of the cylindrical shape, the inner end of the housing on the opposite side of the chain gear bite The housing coupling disc 53 is also inscribed with a tooth shape or a female thread shape, and the housing coupling disc 53 is also inscribed with a tooth shape and a male thread to be fixed by a snap ring 44. The concave and block shape housings have two fixed connecting bars in one housing, and the other housing Bikes characterized by the fact that two holes can be used to make the connecting bar a nut or a snap ring The planetary gear carrier 24 of the first accelerator 20 makes the carrier hollow tool 26 integral with the planetary gear carrier so that the axle shaft 11 penetrates and the carrier hollow tool. The outer diameter of the bicycle, characterized in that to prevent the separation and play of the planetary gear carrier by engaging the fine groove on one side of the sun gear 12 fixed to the central axle shaft portion (10).

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