KR101793789B1 - Muti-range bycycle - Google Patents

Muti-range bycycle Download PDF

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Publication number
KR101793789B1
KR101793789B1 KR1020150171296A KR20150171296A KR101793789B1 KR 101793789 B1 KR101793789 B1 KR 101793789B1 KR 1020150171296 A KR1020150171296 A KR 1020150171296A KR 20150171296 A KR20150171296 A KR 20150171296A KR 101793789 B1 KR101793789 B1 KR 101793789B1
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KR
South Korea
Prior art keywords
gear
speed
speed change
coupled
teeth
Prior art date
Application number
KR1020150171296A
Other languages
Korean (ko)
Other versions
KR20170065181A (en
Inventor
하태환
Original Assignee
하태환
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Priority to KR1020150171296A priority Critical patent/KR101793789B1/en
Publication of KR20170065181A publication Critical patent/KR20170065181A/en
Application granted granted Critical
Publication of KR101793789B1 publication Critical patent/KR101793789B1/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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/10—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with bevel gear wheels
    • 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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
    • B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
    • 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
    • B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
    • 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
    • B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
    • B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/14—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising conical gears only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion

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

Abstract

The multi-speed change bicycle includes a bicycle body including front and rear wheels rotatably fixed to the frame; A pendulum fixedly rotated on the frame; A speed change plate rotated together with the tread and having a plurality of shifting teeth formed concentrically on the surface thereof and a drive tooth array formed on an outer circumferential surface thereof; A ring gear rotatable by the input shaft, an output shaft disposed inside the ring gear and formed of a sun gear and coupled to the rear wheel, an inner gear teeth of the ring gear, and a sun gear coupled to the sun gear A transmission unit including a pinion gears, a carrier coupling the pinion gears, and a drive gear meshed with the carrier; And a rotation number changing module for changing the rotation direction of the driving gear and the rotation number of the driving gear.

Description

Multi-speed change bicycle {MUTI-RANGE BYCYCLE}

The present invention relates to a multistage variable speed bike capable of driving a rear wheel of a bicycle without a chain coupled to a plurality of sprocket wheels and a sprocket wheel respectively formed on a rear wheel and a rear wheel, and capable of speed control by a multi-stage shift during traveling.

Bicycle is a convenient means of transportation that is widely used in everyday life.

BACKGROUND ART [0002] Generally, a bicycle includes a frame having a handle, a front wheel rotatably fixed to the front of the frame, a rear wheel rotatably fixed to the rear of the frame, a pneumatic tumbler disposed between front and rear wheels, A combined sprocket wheel, and a chain coupled to the sprocket wheel.

The bicycle rotates the tires and power is transmitted to the rear wheels through the sprocket wheel and the chain.

Further, the bicycle is equipped with a transmission using sprocket wheels having different sizes so that the vehicle can be driven with less force on an uphill or a flat ground.

However, when the vehicle is driven using the sprocket wheel and the chain, the chain may frequently be disengaged from the sprocket wheel, which is disadvantageous, and the transmission using the sprocket wheels having different sizes has a problem of high shift shock.

Korean Registered Patent No. 10-1532029, Structure of a Bicycle Transmission Gear and Bicycle Bicycle (Registered on June 22, 2015)

The present invention provides a multistage variable speed bike capable of traveling without a sprocket wheel and a chain for traveling, and capable of shifting while traveling without using a sprocket wheel and a chain.

In one embodiment, the multi-speed change bicycle includes a bicycle body including a front wheel and a rear wheel rotatably fixed to the frame; A pendulum fixedly rotated on the frame; A speed change plate rotated together with the tread and having a plurality of shifting teeth formed concentrically on the surface thereof and a drive tooth array formed on an outer circumferential surface thereof; A ring gear rotatable by the input shaft, an output shaft disposed inside the ring gear and formed of a sun gear and coupled to the rear wheel, an inner gear teeth of the ring gear, and a sun gear coupled to the sun gear A transmission unit including a pinion gears, a carrier coupling the pinion gears, and a drive gear meshed with the carrier; And a rotation number changing module for changing the rotation direction of the driving gear and the rotation number of the driving gear.

The transmission teeth of the multi-speed change bicycle are formed with different diameters.

A stepped gear is formed at one end of the input shaft of the multistage speed change bicycle and is coupled to the drive tooth train, and a spur gear is formed at the other end opposite to the one end of the input shaft.

The output shaft and the rear wheel of the multistage speed change bicycle are coupled with a bevel gear so that the rear wheel is driven by rotation of the output shaft.

The speed change module of the multi-speed change bicycle comprises a drive gear shaft having one end engaged with the drive gear, a plurality of shift gears formed on the drive gear shaft and being gear-connected to one of the shift teeth, And a position changing unit for moving the gear shaft to gear one of the shift gears to the shift tooth array.

Wherein the driving gear shaft of the multistage speed change bike is coupled to at least two of the driving gear shafts so as to be rotatable in the circumferential direction and extendable and contractible in the longitudinal direction and the position changing unit comprises a wire unit for pulling or pushing any one of the two driving gear shafts, And an operating portion coupled to a handle of the frame for driving the wire unit.

The wire unit of the multi-speed change bicycle includes an elastic member for providing a restoring force to the wire.

The drive gear shaft of the multistage speed change bike is formed to have a length across the speed change plate.

The transmission dentition of the multistage speed change bicycle includes a low speed transmission ditch disposed adjacent to the tent and a high speed transmission dentition disposed outside the low speed transmission tooth.

The speed change module of the multistage speed change bike includes a motor for applying a rotational force to the drive gear and an operating portion formed on the handle of the frame for controlling the rotational speed of the motor.

The multistage speed change bicycle according to the present invention provides a multistage variable speed bike capable of traveling without a sprocket wheel and a chain for running and capable of shifting while driving without using a sprocket wheel and a chain.

1 is an external perspective view of a multi-speed change bicycle according to an embodiment of the present invention. 2 is a cross-sectional view showing the inside of the case of the multistage speed change bicycle of FIG.
3 is an external perspective view of the speed change plate shown in Fig.
4 is an enlarged view of a portion 'A' in FIG.
5 is a perspective view showing the carrier and pinion gears of FIG. 2;
Figs. 6 to 9 are plan views showing the relationship between the speed change plate and the transmission gear teeth for explaining the speed change of the bicycle by the revolution number changing module. Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The invention, which is set forth below, may be embodied with various changes and may have various embodiments, and specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, the terms first, second, etc. may be used to distinguish between various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

1 is an external perspective view of a multi-speed change bicycle according to an embodiment of the present invention. 2 is a cross-sectional view showing the inside of the case of the multistage speed change bicycle of FIG.

1 and 2, the multi-step speed change bicycle 700 includes a bicycle body 100, a dash 200, a speed change plate 300, a speed change unit 400, and a speed change module 500. In addition, the multi-speed change bicycle 700 further includes a case 600 surrounding the speed change plate 300, the speed change unit 400, and the speed change module 500.

The bicycle body 100 includes a frame 105, a front wheel 110 and a rear wheel 120.

A front wheel 110 is rotatably coupled to the frame 105 in front of the frame 105 and a rear wheel 120 is rotatably coupled to the frame 105 on the rear side of the frame 105. [

The pendulum 200 is coupled to the frame 105 and the pendulum 200 is disposed between the front wheel 110 and the rear wheel 120.

The pendulum 200 is rotatably coupled to the frame 105, and a rotating force is generated in the pendulum 200 by the user rotating the pendulum 200.

In one embodiment of the present invention, the rotational force applied to the muzzle 200 becomes a power source that allows the bicycle body 100 to travel without the chain and the sprocket wheel.

3 is an external perspective view of the speed change plate shown in Fig.

2 and 3, the transmission plate 300 is coupled to the pendulum 200, and the transmission plate 300 is rotated at the same rotational speed together with the pendulum 200.

The transmission plate 300 is formed, for example, in a disk shape. The transmission plate 300 formed in a disk shape includes a pair of facing surfaces 301 and an outer peripheral surface 302.

A through hole 303 for coupling the pedal 200 is formed at the center of the surface 301 of the transmission plate 300 and the transmission teeth 310 are formed on the surface 301 of the transmission plate 300.

In the embodiment of the present invention, the plurality of shift teeth 310 are formed concentrically with respect to the through hole 303, and the shift teeth 310 are formed with different diameters when viewed from the surface 301.

The transmission teeth 310 include, for example, a low speed transmission tooth train 312 and a high speed transmission tooth train 314. [

The low speed transmission tooth train 312 is used when the bicycle travels at a low speed while the bicycle is stationary, and the high speed transmission tooth train 314 is used when the bicycle is traveling at a high speed.

In the embodiment of the present invention, the low speed transmission tooth array 312 is arranged adjacent to the through hole 303 in the transmission plate 300, and the high speed transmission teeth array 314 is arranged in the low speed transmission tooth array (312).

Although it is shown and described that the transmission plate 300 is formed with the low speed transmission teeth array 312 and the high speed transmission teeth array 314 in the embodiment of the present invention, the transmission plate 300 is provided with at least three transmission teeth teeth 314, Can be formed.

In one embodiment of the present invention, the width of the low speed transmission tooth array 312 and the width of the high speed transmission teeth array 314 may be formed differently for gear engagement with a speed change gear to be described later.

On the other hand, drive teeth 320 are formed on the outer circumferential surface of the transmission plate 300 formed in a disk shape.

The drive teeth rows 320 formed on the outer circumferential surface of the speed change plate 300 provide rotation force of the speed change plate 300 to the ring gear of the transmission unit 400 to be described later, .

4 is an enlarged view of a portion 'A' in FIG.

2 and 4, the transmission unit 400 includes an input shaft 410, a ring gear 420, an output shaft 430, a pinion gear 440, a carrier 450, and a drive gear 460 . In addition, a rotation unit 412 such as a motor may be coupled to the input shaft 410, and a battery 412a for driving the rotation unit 412 may be electrically connected to the rotation unit 412.

The input shaft 410 provides rotational force to the ring gear 420 provided to the speed change plate 300 by the pulley 200.

One end of the input shaft 410 is engaged with the drive teeth 320 formed on the outer circumferential surface of the transmission plate 300 by the screw gear 411.

The input shaft 410 is also rotated by the screw gear 411 engaged with the driving gear teeth 320 as the speed change plate 300 is rotated by the rotation of the dampers 200. [

A spur gear 413 is formed at the other end opposite to one end of the input shaft 410 on which the screw gear 411 is formed and the spur gear 413 is rotated together with the input shaft 410.

In an embodiment of the present invention, the ring gear 420 is formed in a narrow cylindrical shape, and the ring gear 420 has an outer tooth row 421 formed on the outer side surface thereof and an inner row tooth row 423 formed on the inner side surface thereof do.

A spur gear 413 formed on the other end of the input shaft 410 is engaged with the outer teeth 421 formed on the outer surface of the ring gear 420 and connected to the spur gear 413 by the rotation of the input shaft 410 A rotational force is applied to the toothed ring gear 420, which causes the ring gear 420 to rotate.

The output shaft 430 is disposed inside the ring gear 420 and a part of the output shaft 430 is disposed inside the ring gear 420 and a part of the output shaft 420 is disposed outside the ring gear 420 do.

The output shaft 430 is disposed at the center of rotation of the ring gear 420 and a line gear portion 432 is formed at a portion of the output shaft 430 disposed inside the ring gear 420. The sun gear portion 432 is formed along the outer peripheral surface of the output shaft 430.

A bevel gear or the like is coupled to an end of the output shaft 430 and a rotational force output from the output shaft 430 is provided to the rear wheel 120.

The rotational force output to the output shaft 430 is shown as being applied to the rear wheel 120. Alternatively, the rotational force output to the output shaft 430 may be provided to the front wheel 110, 110 and the rear wheel 120, respectively.

The pinion gear 440 is disposed inside the ring gear 420 and a plurality of pinion gears 440 are disposed inside the ring gear 420.

In one embodiment of the present invention, three or four pinion gears 440 may be disposed inside the ring gear 420.

A through hole is formed in the center of each pinion gear 440 and a pinion gear shaft 442 is coupled to the through hole through the pinion gear 440 in the through hole.

In the embodiment of the present invention, four pinion gears 440 are disposed inside the ring gear 420.

The teeth formed on the outer circumferential surface of each pinion gear 440 are meshed with an inner tooth train 423 disposed inside the ring gear 420 and a gear train section 432 formed on the output shaft 430.

The pinion gears 440 are revolved with respect to the output shaft 430 in a state where the pinion gears 440 are fixed within the ring gear 420 by a carrier described later within the ring gear 420 or the output shaft 430.

5 is a perspective view showing the carrier and pinion gears of FIG. 2;

2 and 5, the carrier 450 rotatably or rotatably fixes the pinion gears 440 in the ring gear 420.

The carrier 450 includes a first carrier body portion 452 and a second carrier body portion 454.

The first carrier body portion 452 is formed in a cylindrical shape and the output shaft 430 is inserted into the first carrier body portion 452.

A portion of the first carrier body portion 452 is disposed inside the ring gear 420 and a portion of the first carrier body portion 452 is disposed outside the ring gear 450.

A teeth 453 is formed in the first carrier body portion 452 disposed outside the ring gear 420.

The second carrier body portion 454 is formed by extending a part of the first carrier body portion 452 and the second carrier body portion 454 is formed at a position corresponding to the line gear portion 432 formed on the output shaft 430 As shown in FIG.

First openings 455 are formed in the second carrier body portion 454 extending from the first carrier body portion 452 and the first openings 455 are formed in positions corresponding to the pinion gears 440 .

The second carrier body portions 454 are each formed with a hole 456 to which a pinion gear shaft 442 coupled to the rotation center of the pinion gear 440 is coupled.

A part of the teeth of the pinion gear 440 is exposed from the first openings 455 of the second carrier body portion 454 in the state where the pinion gear 440 is coupled to the hole 456, Is meshed with the inner gear teeth 423 of the ring gear 420 and the sun gear portion 432 formed on the output shaft 430, respectively.

The driving gear 460 is connected to the output shaft 430 in a first direction that is the same as the rotational direction of the output shaft 430 or in a direction opposite to the rotating direction of the output shaft 430 In the second direction.

The drive gear 460 may be coupled in a direction perpendicular to the second carrier body portion 454, for example. As the driving gear 460, a screw gear, a spur gear, or the like may be used, and in addition, various worm gears for changing the rotational direction and the rotational speed may be used.

The pinion gear 440 meshed with the ring gear 420 and the output shaft 430 by the rotation of the ring gear 420 by the rotational force applied to the input shaft 410 is rotated by the carrier 450 As shown in Fig.

The output shaft 430 rotates at a very high speed when the carrier 450 is fixed by the driving gear 460 so that the pinion gear 440 only rotates without revolving.

The pinion gear 440 rotates around the output shaft 430 to rotate the output shaft 430 while rotating the drive gear 460 in the first direction which is the same as the rotation direction of the output shaft 430, Is rotated at a rotational speed lower than the rotational speed of the ring gear 420.

That is, in one embodiment of the present invention, the number of revolutions or the rotational force output to the output shaft 430 can be adjusted by adjusting the number of revolutions and the direction of rotation of the carrier 450 by the driving gear 460.

In short, when the number of rotations of the ring gear is the same, when the drive gear 460 does not rotate the carrier 450, the output shaft 430 is rotated at the first rotation speed.

On the other hand, when the number of rotations of the ring gear is the same, when the driving gear 460 rotates the carrier 450 in the first direction which is the same direction as the output shaft, the output shaft 430 is rotated at the second rotation number lower than the first rotation number .

On the other hand, when the number of rotations of the ring gear is the same, when the driving gear 460 rotates the carrier 450 in the second direction opposite to the output shaft, the output shaft 430 is rotated at the second rotation number higher than the first rotation number .

The rotational speed changing module 500 controls or adjusts the rotational speed of the driving gear 460.

In one embodiment of the present invention, the speed change module 500 includes a drive gear shaft 510, a speed change gear 520, and a position change unit 530.

The drive gear shaft 510 serves to interconnect the speed change plate 300 and the drive gear 460.

One end of the drive gear shaft 510 can be interconnected by using the teeth of the drive gear 460 and the screw gear or the like and the other end of the drive gear shaft 510 is connected to the output shaft (300).
In one embodiment of the present invention, the drive gear shaft 510 passes through a position spaced from the exterior of the second carrier body portion 454 without passing through the interior of the second carrier body portion 454, ).

The other end of the driving gear shaft 510 opposite to the one end of the driving gear shaft 510 is connected to the carrier 450 by a driving gear 460 or by a screw gear or a spur gear without the driving gear 460. In this embodiment, 1 < / RTI > carrier body < RTI ID = 0.0 > 452. < / RTI >

In one embodiment of the present invention, the drive gear shaft 510 may be divided into two, and the two divided drive gear shafts 510 may be elongated or reduced in length while being rotated.

Preferably, the driving gear shaft 510 may be elongated or shortened while being rotated using, for example, a key and a key groove. For example, a long key groove may be formed on one side of the two divided driving gear shafts 510, and a long key inserted into the key groove may be formed on the other side of the driving gear shaft 510, It is possible to increase or decrease the length of the rotating shaft 510 during rotation.

A plurality of gears 520 may be formed on the driving gear shaft 510. The speed change gear 520 is formed in a denting shape on the driving gear shaft 510, (Not shown).

The transmission gear 520 formed on the driving gear shaft 510 across the transmission plate 300 may be disposed on both sides of the through hole 303 with respect to the through hole 303 of the transmission plate 300 . This is for rotating the driving gear 460 in the first direction or in the second direction opposite to the first direction to change the rotational force or the rotational speed output to the output shaft 430.

When the transmission gears 520 are disposed on both sides of the through hole 303 with respect to the through hole 303, the speed of the drive gear 460 in the first direction, which is the same as the direction of rotation of the output shaft 430, Mode or the high-speed mode in which the driving gear 460 is rotated in the second direction opposite to the rotation direction of the output shaft 430 is possible.

Hereinafter, for the convenience of explanation, the speed change gear 520 is defined as a first speed change gear 522, a second speed change gear 524, a third speed change gear 526 and a fourth speed change gear 528. [

The position changing unit 530 includes a wire unit 532 and an operating unit 535. [

The wire unit 532 of the position changing unit 530 pulls or pushes one of the drive gear shafts 510 by using a wire to transmit one of the plurality of shift gears 520 formed on the drive gear shaft 510 And the transmission teeth 310 formed on the plate 300.

The operating portion 535 is mounted on a handle or the like mounted on the frame and applies tension to the wire unit 532 to adjust the position of the speed change gears 520 formed on the driving gear shaft 510.

In one embodiment of the present invention, the wire unit 532 may be provided with an elastic member, such as a spring, which can return the tensioned wire to a designated position at the user's option.

Hereinafter, the speed change of the bicycle by the speed change module will be described with reference to FIGS. 6 to 9 attached hereto.

Figs. 6 to 9 are plan views showing the relationship between the speed change plate and the transmission gear teeth for explaining the speed change of the bicycle by the revolution number changing module. Fig.

6, when the transmission plate 300 is rotated by the rotation of the dampers 200, the first speed change gear 522 is engaged with the low speed transmission tooth array 312 disposed inside the transmission gear teeth 310, And the remaining second to fourth shift gears 524, 526, and 528 are not gear engaged with the transmission gear teeth 310.

6, the first speed change gear 522 and the drive gear shaft 510 are rotated at a high speed as the first speed change gear 522 is engaged with the low speed change gear tooth array 312, And is rotated in the first direction which is the same as the rotation direction of the output shaft 430, so that the user can start the stopped bicycle with little force.

Referring to FIG. 7, when the user operates the operation unit 535 to speed up the bicycle after the one-speed change, the wire unit 532 is operated and the drive gear shaft 510 is rotated and moved, The shift gear 524 is engaged with the high speed transmission gear train 314 while being moved and the remaining first speed change gear 522 and the third and fourth speed change gears 526 and 528 are not engaged with the transmission gear teeth 310.

7, the second speed change gear 524 and the drive gear shaft 510 are also rotated at a lower rotation speed than that of FIG. 6 as the second speed change gear 524 is coupled to the high speed transmission gear train 312, As the number of rotations of the gear 460 is reduced, the output shaft 430 is rotated at a higher rotation speed, and the bicycle is moved at the first speed.

Referring to FIG. 8, when the user operates the operation unit 535 to move the bicycle at the first speed and to increase the speed with less force, the third speed change gear 526 is located inside the speed shift tooth 310 And the remaining first and second shift gears and fourth shift gears 522, 524, and 528 are not engaged with the shift tooth train 310. In this case, The third speed change gear 526 is disposed on the opposite side of the first and second speed change gears 522 and 524 with respect to the through hole 303 of the speed change plate 300.

8, the third speed change gear 526 is coupled to the low speed shift tooth train 312 in a direction opposite to the rotation direction of the drive gear shaft 510 of FIGS. 6 and 7 The driving gear shaft 510 is also rotated at a high speed in a direction opposite to the rotating direction of the driving gear shaft 510 of FIGS. 6 and 7 so that the driving gear 460 is rotated in a direction opposite to the rotating direction of the output shaft 430 The user is able to move the bicycle at a second speed higher than the first speed with a small force. (3-speed)

Referring to FIG. 9, as the user operates the operating unit 535 to operate the operating unit 535 at a maximum speed while moving the bicycle at the second speed, the wire unit 532 operates to rotate the driving gear shaft 510 So that the fourth speed change gear 528 is engaged with the high speed speed shift tooth train 314 while the other first to third speed change gears 522, 524, 526 are not engaged with the speed shift tooth 310.

The fourth speed change gear 528 is disposed on the opposite side of the first and second speed change gears 522 and 524 with respect to the through hole 303 of the speed change plate 300 and is disposed adjacent to the third speed change gear 526 .

9, the fourth speed change gear 528 is rotated at a lower speed than that of Fig. 8 as the fourth speed change gear 528 is engaged with the high speed speed shift tooth train 312, 8, the driving gear 460 is rotated at a lower speed in the second direction opposite to the output shaft 430, and consequently the bicycle can be moved at the third speed, which is the maximum speed. Speed)

Although the four-speed shifting technique is described in the embodiment of the present invention, the number of shift teeth 310 formed on the speed change plate 300 is increased and the size of the speed change teeth 310 formed on the speed change plate 300 Speed shift or more can be implemented.

On the contrary, in order to reduce the speed of the bicycle or to climb the uphill road, the user adjusts the operating unit 535 to gear the first to fourth shift gears 522, 524, 526, 528 to any one of the shift tooth rows 310, It is possible to increase the torque while moving the uphill road with a smaller force.

In one embodiment of the present invention, the rotational speed changing module changes the rotational speed and the rotational direction of the drive gear using the drive gear shaft, the shift gear, and the position changing unit, And an operation unit provided on the handle of the frame for controlling the number of revolutions of the motor.

As described in detail above, the present invention is capable of traveling without a sprocket wheel and a chain for traveling, and has an effect of enabling a multi-stage shifting during traveling without using a sprocket wheel and a chain.

It should be noted that the embodiments disclosed in the drawings are merely examples of specific examples for the purpose of understanding, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100 ... Bicycle body 200 ... Bump
300 ... transmission plate 400 ... transmission unit
500 ... rotation number change module 600 ... case

Claims (10)

A bicycle body including front and rear wheels rotatably fixed to the frame;
A pendulum fixedly rotated on the frame;
A speed change plate rotated together with the tread and having a plurality of shifting teeth formed concentrically on the surface thereof and a drive tooth array formed on an outer circumferential surface thereof;
A ring gear rotatable by the input shaft, an output shaft disposed inside the ring gear and formed of a sun gear and coupled to the rear wheel, an inner gear teeth of the ring gear, and a sun gear coupled to the sun gear A transmission unit including a pinion gears, a carrier coupling the pinion gears, and a drive gear meshed with the carrier; And
And a rotation number changing module for changing the rotation direction of the drive gear and the rotation number of the drive gear. The method according to claim 1,
Wherein the speed changing teeth are formed at different diameters. The method according to claim 1,
And a spur gear engaged with the outside teeth of the ring gear is formed at the other end opposite to the one end of the input shaft. The method according to claim 1,
Wherein the output shaft and the rear wheel are coupled with a bevel gear, and the rear wheel is driven by rotation of the output shaft. The method according to claim 1,
Wherein the rotation speed changing module includes a drive gear shaft having one end coupled to the drive gear, a plurality of transmission gears formed on the drive gear shaft, the change gears being coupled to one of the shift teeth, And a position changing unit for gearing one of the shift gears to the shift tooth train. 6. The method of claim 5,
At least two driving gear shafts are coupled so as to be rotatable in the circumferential direction and extendable and contractible in the longitudinal direction,
Wherein the position changing unit includes a wire unit for pulling or pushing any one of the two drive gear shafts by a wire and an operating portion coupled to a handle of the frame for driving the wire unit. The method according to claim 6,
Wherein the wire unit includes an elastic member that provides restoring force to the wire. 6. The method of claim 5,
And the drive gear shaft is formed to have a length across the speed change plate. The method according to claim 1,
Wherein the transmission dentition includes a low-speed shifting tooth arranged adjacent to the pulley and a high-speed shifting teeth disposed outside the low-speed shifting tooth. The method according to claim 1,
Wherein the rotation speed changing module includes a motor for applying a rotational force to the driving gear and an operating portion formed on a handle of the frame for controlling the rotational speed of the motor.
KR1020150171296A 2015-12-03 2015-12-03 Muti-range bycycle KR101793789B1 (en)

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