TWM596198U - Continuously variable reciprocating prime mover and vehicle comprising the same - Google Patents

Abstract

The present invention discloses a stepless variable-speed reciprocating prime mover, which includes a first runner, a second runner, a rope wound between the first and second runners, and a linear motion part provided on the rope The force-applying device, wherein the first rotating wheel includes a first and a second spiral winding shaft symmetrically wound with each other but not overlapping with respect to a driving shaft, and the mechanical angular phase of the first and second spiral winding shaft There is a difference of 180 degrees, wherein when the force applying device moves forward and backward in a direction parallel to the linear movement part of the rope, the rope part is pulled out and received in the first spiral spool, and the rope part is received and pulled out The second helical spool, so that the torque applied by the force applying device to the drive shaft during the running reciprocating linear motion stroke is changed to achieve the purpose of stepless speed change.

Description

Stepless variable speed reciprocating prime mover and bicycle containing the same

The present invention relates to a reciprocating prime mover and a bicycle containing the reciprocating prime mover, and particularly to a stepless reciprocating prime mover and a bicycle including the stepless variable reciprocating prime mover.

Since 1867~1885, bicycles in Western Europe have gradually been shaped, and have become familiar to the world today. In the past 130 years, although new functions such as flywheels, chains, pneumatic tires, and shifting mechanisms have been continuously improved to improve riding efficiency or comfort, the basic structure of the bicycle has not undergone fundamental changes. The most entrenched components are Rotating stepping on the prime mover.

As shown in Figures 7A~7C, it shows a schematic diagram of a conventional circular pedaling prime mover at different pedaling angles, where R is the rotary pedal pedal arm, F is the single-leg pedaling down pressure, and A is from the top The angle of forward rotation from the dead point, B is the angle between the treadle and the horizontal plane, that is, B+A=90 degrees, then the gravity will step down to generate a moment τ=F×R×sin(A), or τ=F× R×cos(B), generally speaking, the effective torque applied on the treadle is only within the range of 90 degrees from 2 o'clock to 4 o'clock, and when the treadle reaches the direction of 3 o'clock, the gravity pulls down The moment τ can reach the maximum value, that is τ=F×R. However, when one leg exerts force on the turntable pedal arm R, the other leg is lifted and no torque can be applied to the turntable unless the shoe cover or shoe clip is added to the pedal. And even if the leg strength is greater than the weight, as long as the human body is still sitting on the seat cushion, the maximum force that the rider can step on is only the weight, unless the human body leans forward from the seat and pulls the pull-down with the arm upward. The down pressure of the pedal, commonly known as "pumping", is the opportunity to apply pressure beyond the body weight; if it is a reclining or horizontal bicycle, although the foot is stepped forward or pulled back (there are shoe covers or shoes) Card), but each round rotation cycle from the bottom dead center to the top dead center must additionally apply the invalid power consumption of the leg lift.

In view of the shortcomings of the above-mentioned rotary stepping on the prime mover, a prime mover that can provide the most effective work is eagerly anticipated by the industry. Therefore, the present invention proposes a reciprocating linear stepping prime mover including a first runner, a second runner, a rope wound between the first and second runners, and a linear motion provided on the rope Force applying device, wherein the first rotating wheel includes a first and a second helical spool that are symmetrically wound with each other relative to a drive shaft, but do not overlap, and the mechanical angle of the first and the second helical spool The phase difference is 180 degrees, wherein when the force applying device moves forward and backward in a direction parallel to the linear movement part of the rope, the rope part is pulled out and received in the first spiral spool, and the rope part is received and pulled The second spiral winding shaft is pulled out, thereby the torque applied by the force applying device to the driving shaft during the reciprocating linear motion stroke is changed, and the purpose of stepless speed change is achieved.

One object of the present invention is to provide a stepless variable speed reciprocating prime mover, which includes: a first rotating wheel coupled to a drive shaft, and the first rotating wheel includes a first spiral winding shaft and a second spiral winding wire Shaft, the first and second spiral winding shafts are symmetrical with each other but do not overlap with respect to the driving shaft, and the mechanical angle of the first and second spiral winding shafts are 180 degrees out of phase, wherein the first spiral winding shaft Has a first end) and a second end, respectively located at the innermost diameter and the outermost diameter of the first spiral reel, and gradually changes radially outward relative to the drive shaft to form the first spiral reel , And the second spiral reel has a third end and a fourth end, respectively located on the second spiral reel The innermost diameter and the outermost diameter of the shaft, and gradually becoming radially outward relative to the drive shaft to form the second spiral winding shaft; a second rotating wheel, which is arranged on a fixed shaft; a rope, one end of which Fixed to the first end of the first helical spool so that a portion of the rope adjacent to the first end gradually winds from the first end along the inner diameter of the first helical spool to the outer diameter and from one position The first contact point on the first helical spool is drawn out, after being guided around the second runner, it returns to enter the second helical spool, so that the other end of the rope is fixed to the second helical spool The fourth end of the fourth end, and the portion of the rope adjacent to the fourth end can be gradually wound along the outer diameter of the second spiral spool toward the inner diameter, and a second position on the second spiral spool is positioned The contact points are drawn out to form a closed loop, and the first and second contact points are located at opposite mechanical angle phases on the first and second spools respectively, the distance between the first contact point and the first end Equal to the distance between the second contact point and the third end, and the rope forms at least a tight rope linear movement part between the first rotor and the second rotor, when the rope is from the first spiral When the first contact point where the spool is drawn is located at the second end of the first spiral spool, the second contact point where the rope is drawn from the second spiral spool is located in the second spiral The fourth end of the spool; and a force applying device, and the force applying device can reciprocate forward or backward in a direction parallel to the linear movement part of the rope; wherein, when the rope is wound from the first spiral When the first contact point where the shaft is drawn is located at the second end of the first spiral reel, the second contact point where the rope is drawn from the second spiral reel is located on the second spiral reel The fourth end of the shaft; wherein, when the force applying device moves forward in a direction parallel to the linear movement part of the rope, the rope part is pulled out of the first spiral reel and partly received in the second spiral The spool, the length of the rope pulled out of the first helical spool is equal to the length of the rope received in the second helical spool, the first and second contact points are gradually away from the second and fourth ends, respectively, and the first 1. The distance between the second contact points gradually decreases, and when the force applying device is moved backward in a direction parallel to the linear movement part of the rope When moving, the rope is partly received into the first helical spool and partly pulled out of the second helical spool. The length of the rope received into the first helical spool is equal to the length of the rope pulled out of the second helical spool , The first and second contact points gradually approach the second and fourth ends, respectively, and the distance between the first and second contact points gradually becomes larger, thereby making the force applying device operate a reciprocating linear motion stroke The internal torque applied to the drive shaft is changed as the distance between the first and second contact points changes, achieving the purpose of stepless speed change.

Another object of the present invention is to provide a stepless variable-speed reciprocating prime mover as described above, and the rope may be composed of a single material or be connected in series by more than one material.

Another object of the present invention is to provide a stepless variable-speed reciprocating prime mover as described above, and further includes a speed-changing mechanism, which is disposed on the rope between the first runner and the second runner. When the speed change mechanism is actuated to switch to the high-speed gear, the rope part is pulled out of the first spiral spool and partially received in the second spiral spool, and the first and second contact points are away from the second and At the four ends, the distance between the first and second contact points is reduced, and when the transmission mechanism is actuated to switch to the low gear, the rope part is pulled out of the second spiral spool and partly received in the first spiral The spool, and the first and second contact points are close to the second and fourth ends, respectively, the distance between the first and second contact points becomes larger; by the speed change mechanism between the high speed gear and the low speed gear The switching of the force application device causes the distance between the first and second contact points corresponding to the contact between the rope and the first and second spiral winding shafts to decrease or increase during the reciprocating linear motion stroke The average torque in the stroke range can be changed steplessly to achieve the stepless speed change effect.

Another object of the present invention is to provide a stepless variable speed reciprocating prime mover as described above, and the transmission mechanism includes a cable fixing point and an extension mechanism. The cable fixing point can move on the extension mechanism when the transmission mechanism When the operation is switched to the high-speed gear, the fixing point is moved on the extension mechanism so that the rope part is pulled out of the first spiral spool and partly received in the second spiral spool, and the first, The distance between the second contact points is reduced, and when the transmission mechanism is switched to a low gear, the cable fixing point is moved on the extension mechanism so that the rope part is pulled out of the second helical spool and partly received in the The first spiral bobbin makes the distance between the first and second contact points larger.

Another object of the present invention is to provide a stepless variable-speed reciprocating prime mover as described above, and the transmission mechanism includes a movable guide wheel group. When the transmission mechanism is switched to a high-speed gear, the movable guide wheel group makes the The rope part is pulled out of the first spiral spool and partly received in the second spiral spool, and the distance between the first and second contact points is reduced. When the transmission mechanism is switched to a low gear, the The movable guide wheel group causes the rope part to be pulled out of the second spiral spool and partially received in the first spiral spool, and the distance between the first and second contact points becomes larger.

Another object of the present invention is to provide a continuously variable reciprocating prime mover as described above, which may further include a pulley disposed between the first and second runners, so that the rope is connected to the first runner and At least one tight rope linear movement part is formed between the second wheels.

Another object of the present invention is to provide any stepless variable speed reciprocating prime mover as described above, and the stepless variable speed reciprocating prime mover further includes a one-way ratchet, and the first rotating wheel system passes through the one-way The ratchet wheel is coupled to the drive shaft. When the rope part is pulled out of the first helical winding shaft, the force applying device transmits the applied torque to the drive shaft through the unidirectional ratchet wheel, and when the rope part is pulled out When the second spiral winding shaft is used, the force applying device cannot transmit the applied torque to the driving shaft through the unidirectional ratchet, so that the driving shaft can only rotate in a single direction.

Another object of the present invention is to provide a bicycle including a stepless variable speed reciprocating prime mover, and the stepless variable speed reciprocating prime mover includes: a first rotating wheel coupled to a drive shaft, and the first rotating wheel It includes a first helical spool and a second helical spool. The first and second spools are symmetrical with each other but do not overlap each other with respect to the drive shaft. The machinery of the first and second spools The angular phase differs by 180 degrees, wherein the first spiral spool has a first end and a second end, which are located at the innermost diameter and the outermost diameter of the first spiral spool, respectively, and gradually increase relative to the drive shaft Radial The first spiral spool is formed around the outside, and the second spiral spool has a third end and a fourth end, respectively located at the innermost diameter and the outermost diameter of the second spiral spool, and opposite The driving shaft gradually becomes radially outward to form the second spiral winding shaft; a second rotating wheel is disposed on a fixed shaft; a rope is fixed at one end to the first end of the first spiral winding shaft, The portion of the rope adjacent to the first end is gradually wound from the first end along the inner diameter of the first spiral spool to the outer diameter, and is pulled from a first contact point on the first spiral spool Lead out, go around the second runner after being guided to go back into the second spiral spool, fix the other end of the rope to the fourth end of the second spiral spool, and make the adjacent to the fourth end Part of the rope can be gradually traversed along the outer diameter of the second spiral spool to the inner diameter, and a second contact point on the second spiral spool is drawn out to form a closed loop, and the first The second contact points are located at opposite mechanical angular phases on the first and second winding axes respectively, the distance between the first contact point and the first end is equal to the distance between the second contact point and the third end, And the rope forms at least a tight rope linear movement part between the first runner and the second runner. When the rope is drawn from the first spiral winding shaft, the first contact point is located at the first At the second end of a spiral spool, the second contact point where the rope is drawn from the second helical spool is located at the fourth end of the second spool; and a force is applied Device, and the force applying device can reciprocate forward or backward in a direction parallel to the linear movement part of the rope; wherein, when the force applying device is at rest, the first contact of the rope drawn from the first spiral reel The point is located adjacent to the second end of the first spiral spool, and the second contact point where the rope is drawn from the second spiral spool is located near the fourth end of the second helical spool Where; when the force applying device moves forward in a direction parallel to the linear motion part of the rope, the rope part is pulled out of the first helical spool and partly received in the second helical spool, which is pulled out of the The length of the rope of the first spiral reel is equal to the length of the rope received in the second spiral reel. The first and second contact points are gradually away from the second and fourth ends, respectively, and between the first and second contact points The distance gradually decreases, and when the force applying device moves backward in a direction parallel to the linear movement part of the rope, the rope part is received in the first spiral reel And partly pulled out of the second spiral spool, the length of the rope received in the first spiral spool is equal to the length of the rope pulled out of the second spiral spool, and the first and second contact points are gradually approaching the first Second, the fourth end, and the distance between the first and second contact points gradually becomes larger, so that the torque applied by the force applying device to the drive shaft during the reciprocating linear motion stroke follows the first, The distance between the second contact points changes and is changed to achieve the purpose of stepless speed change.

Another object of the present invention is to provide a bicycle as described above, and the rope in the stepless speed reciprocating prime mover may be composed of a single material or be connected in series by more than one material.

Another object of the present invention is to provide a bicycle as described above, and the stepless variable speed reciprocating prime mover further includes a speed change mechanism disposed on the rope between the first and second wheels, Wherein, when the speed change mechanism is actuated to switch to the high-speed gear, the rope part is pulled out of the first spiral spool and partly received in the second spiral spool, and the first and second contact points are away from the first 2. At the fourth end, the distance between the first and second contact points is reduced, and when the speed change mechanism is actuated to switch to the low gear, the rope part is pulled out of the second spiral spool and partly received in the The first spiral spool, and the first and second contact points are close to the second and fourth ends, respectively, the distance between the first and second contact points becomes larger; by the speed change mechanism in high speed, low speed Switching between gears makes the force applying device in the reciprocating linear motion stroke, the distance between the first and second contact points corresponding to the rope and the first and second helical winding shafts decreases or changes accordingly If it is large, the average torque within the stroke range can be changed steplessly to achieve the stepless speed change effect.

Still another object of the present invention is to provide a bicycle as described above, and the speed change mechanism in the stepless speed reciprocating prime mover includes a cable fixing point and an extension mechanism, the cable fixing point can move on the extension mechanism, And when the speed change mechanism is switched to the high-speed gear, the cable fixing point is moved on the extension mechanism so that the rope part is pulled out of the first helical spool and partly received in the second helical spool, and the The distance between the first and second contact points is reduced. When the transmission mechanism is switched to the low gear, the cable fixing point moves on the extension mechanism to pull the rope part out of the second spiral winding line The shaft is partly taken into the first spiral winding spool, and the distance between the first and second contact points becomes larger.

Still another object of the present invention is to provide a bicycle as described above, and the speed change mechanism in the stepless speed reciprocating prime mover includes a movable guide wheel group, which is activated when the speed change mechanism is switched to a high-speed gear The group is that the rope part is pulled out of the first spiral spool and partly received in the second spiral spool, and the distance between the first and second contact points is reduced, when the speed change mechanism is switched to a low speed During gear shifting, the movable guide wheel set causes the rope part to be pulled out of the second spiral spool and partially received into the first spiral spool, and the distance between the first and second contact points becomes larger.

Yet another object of the present invention is to provide any bicycle as described above, and the stepless variable speed reciprocating prime mover further includes a pulley disposed between the first and second wheels, so that the rope is on the first At least one tight rope linear movement part is formed between the runner and the second runner.

Another object of the present invention is to provide a bicycle as described above, and the stepless variable reciprocating prime mover further includes a one-way ratchet, and the first rotating wheel is coupled to the drive shaft through the one-way ratchet, when the When the rope part is pulled out of the first spiral spool, the force applying device transmits the applied torque to the drive shaft through the unidirectional ratchet, and when the rope part is pulled out of the second spiral spool, the force The force device cannot transmit the applied torque to the drive shaft by the one-way ratchet, so that the drive shaft can only rotate in a single direction.

Another object of the present invention is to provide a bicycle as described above, and includes two sets of the above-mentioned stepless variable speed reciprocating prime movers, and each of the drive shafts of the stepless variable speed reciprocating prime movers may be coaxial or non-coaxial .

Still another object of the present invention is to provide a bicycle as described above, the drive shafts of the stepless variable reciprocating prime movers are coaxial, and the unidirectional ratchets of the stepless variable reciprocating prime movers rotate in the same direction It is coupled to each of the drive shafts, and the drive shafts can be synchronously shifted.

Another object of the present invention is to provide a bicycle as described above, the drive shafts of the stepless variable reciprocating prime movers are non-coaxial, and the unidirectional ratchets of the stepless variable reciprocating prime movers are the same The steering shaft is coupled to each of the drive shafts, and the drive shafts may be shifted asynchronously or at different speeds.

100, 100’: the first runner

110, 110’: drive shaft

120, 120’: The first spiral reel

125A, 125A’: the first end

125B, 125B’: the second end

130, 130’: The second spiral reel

135A, 135A’: the third end

135B, 135B’: the fourth end

200, 200’: Second runner

210, 210’: fixed shaft

300, 300’: rope

310, 310’: the first point of contact

320, 320’: the second point of contact

350, 350’: the linear movement part of the rope

400, 400’: Force-applying device

450, 450’: pulley

500, 600: variable speed mechanism

510: Fixing point

530: Extension mechanism

650: Active guide wheel set

1000, 1000’, 2000, 3000: stepless variable speed reciprocating prime mover

4000: Rear-wheel drive two-wheeled bicycle

4100: seat cushion

4300: handle

4500: frame

4700A: Freewheel

4700B: Drive wheel

5000: Rear-wheel drive three-wheel bicycle

5700A: Right free wheel

5700A’: Left free wheel

5700B: Drive wheel

6000: Front-wheel drive tricycle

6100: seat cushion

6300: handle

6500: frame

6700A: Freewheel

6700B: Right drive wheel

6700B’: Left drive wheel

R: distance between the first contact point 310 and the second contact point 320

R’: the distance between the first contact point 310’ and the second contact point 320’

FIGS. 1A to 1C are schematic side views of various stages of the stepless speed reciprocating prime mover 1000 according to an example of the present invention.

FIG. 1D shows an enlarged view of a partial area in FIG. 1A.

FIG. 1E shows another side view corresponding to FIG. 1D.

FIG. 1F is an enlarged view of a partial area of FIG. 1B.

Fig. 1G shows another side view corresponding to Fig. 1F.

FIG. 1H shows an enlarged view of a partial area of FIG. 1C.

Fig. 1I shows another side view corresponding to Fig. 1H.

Figures 2A~2C are schematic side views of various stages of the stepless speed reciprocating prime mover 2000 according to the second embodiment of the present invention.

FIGS. 3A to 3D are schematic side views of various stages of the stepless speed reciprocating prime mover 3000 according to the third embodiment of the present invention.

FIG. 4 is a schematic side view of a rear-wheel-drive two-wheeled bicycle 4000 according to Embodiment 4 of the present invention.

FIG. 5 is a schematic side view of a rear-wheel-drive three-wheel bicycle 5000 according to Embodiment 5 of the present invention.

6A-6B are schematic side views of a front-wheel-drive three-wheeled bicycle 6000 according to Embodiment 6 of the present invention.

Figures 7A~7C are schematic diagrams of a conventional rotary pedaling prime mover at different pedaling angles.

Example one

This first embodiment is a schematic side view of each stage of the stepless speed reciprocating prime mover 1000 shown in FIGS. 1A-1C, corresponding to the enlarged partial views 1D, 1F, and 1 of the partial area shown in FIGS. 1A-1C, respectively. The 1H diagram and the 1E, 1G, and 1I diagrams corresponding to the other angles corresponding to the 1D, 1F, and 1H diagrams are described in detail as follows.

As shown in FIGS. 1A to 1C, the continuously variable reciprocating prime mover 1000 according to the first embodiment of the present invention includes a first runner 100, a second runner 200, a rope 300, and a force applying device 400 . The first reel 100 is coupled to a drive shaft 110, and the first reel 100 includes a first spiral reel 120 and a second spiral reel 130. The first and second spiral reels The shafts 120 and 130 are symmetrically wound with each other but do not overlap with respect to the drive shaft 110, and the mechanical angles of the first and second spiral winding shafts 120 and 130 are 180 degrees out of phase, wherein the first spiral winding shaft 120 has a The first end 125A and a second end 125B are located at the innermost diameter and the outermost diameter of the first spiral winding shaft 120, respectively. The first end 125A is fixed on the driving shaft 110 and is relative to the driving The shaft 110 gradually becomes radially outward to form the first spiral spool 120, and the second spiral spool 130 has a third end 135A and a fourth end 135B, respectively located at the most ends of the second spiral spool 130 At the inner diameter and the outermost diameter, the third end 135A is fixed to the drive shaft 110 and gradually becomes radially outward relative to the drive shaft 110 to form the second spiral bobbin 130. Among them, the second runner 200 is disposed on a fixed shaft 210, and one end of the rope 300 is fixed to the first end 125A of the first spiral reel 120 so that a portion of the rope 300 adjacent the first end 125A along the first spiral winding line from the first end 125A The inner diameter of the shaft 120 gradually detours toward the outer diameter, and is drawn from a first contact point 310 on the first spiral winding shaft 120, and after being guided around the second runner 200, returns to the first Two helical spools 130 fix the other end of the rope 300 to the fourth end 135B of the second helical spool 130, and allow the portion of the rope 300 adjacent to the fourth end 135B to run along the second spool The outer diameter of 130 gradually detours toward the inner diameter, and a second contact point 320 on the second spool 130 is drawn out to form a closed loop, and the first and second contact points 310, 320 Located at opposite mechanical angular phases on the first and second spools 120, 130 respectively, the distance between the first contact point 310 and the first end 125A is equal to the distance between the second contact point 320 and the third end 135A Distance, and the rope forms at least a tight rope linear movement part 350 between the first runner 100 and the second runner 200. In addition, the force applying device 400 can reciprocate forward or backward in a direction parallel to the linear movement part 350 of the rope.

As shown in the enlarged view of the partial area of FIG. 1A shown in FIG. 1D and another angle side view corresponding to FIG. 1E shown in FIG. 1E, when the force applying device 400 is stationary, the rope 300 The first contact point 310 from which a spiral spool 130 is drawn is located adjacent to the second end 125B of the first spiral spool 120, and the first point where the rope 300 is drawn from the second spiral spool 130 The second contact point 320 is located adjacent to the fourth end 135B of the second spool 130.

An enlarged view of the partial area of FIG. 1B shown in FIG. 1F and another angled side view corresponding to FIG. 1F shown in FIG. 1G, and a partial area of FIG. 1C shown in FIG. 1H The enlarged view and FIG. 1I show another side view corresponding to FIG. 1G. When the force applying device 400 moves forward in a direction parallel to the linear movement part 350 of the rope, the rope 300 is partially pulled Out of the first spiral spool 120 and partly received in the second spiral spool 130 and pulled out of the first spiral spool The length of the rope 300 of 120 is equal to the length of the rope 300 received in the second spiral spool 130. The first and second contact points 310 and 320 gradually move away from the second and fourth ends 125B and 135B, respectively, and the first 1. The distance R between the second contact points 310 and 320 gradually decreases.

Similarly, when the force applying device 400 moves backward in a direction parallel to the linear movement part 350 of the rope, the rope 300 is partially received in the first spiral reel 120 and partially pulled out of the second spiral reel 130, The length of the rope 300 received in the first spiral spool 120 is equal to the length of the rope 300 pulled out of the second spiral spool 130, and the first and second contact points 310, 320 gradually approach the second and fourth, respectively The ends 125B and 135B, and the distance R between the first and second contact points 310 and 320 gradually becomes larger.

In the stepless reciprocating prime mover 1000 disclosed in the first embodiment, the torque applied to the drive shaft 110 during the reciprocating linear motion stroke of the linear motion part 350 of the rope by the force applying device 400 follows the first and second The distance R between the two contact points 310 and 320 changes and is changed to achieve the purpose of stepless speed change.

The rope 300 of the stepless reciprocating prime mover 1000 may be composed of a single material or may be connected in series by more than one material.

In other embodiments according to the present invention, the above-mentioned stepless speed reciprocating prime mover 1000 may be further introduced with a pulley 450 as shown in FIGS. 1A to 1C as needed, and disposed between the first and second runners 100 and 200. , So that the rope 300 forms at least a tight rope linear movement part 350 between the first runner 100 and the second runner 200.

In other embodiments according to the present invention, the stepless variable speed reciprocating prime mover 1000 may further introduce a one-way ratchet (not shown) as needed, and the first runner 100 passes through the one-way ratchet (not shown) ) Coupled to the drive shaft 110, when the rope 300 is partially pulled out of the first spool 120 At this time, the force applying device 400 transmits the applied torque to the driving shaft 110 through the one-way ratchet (not shown), and when the rope 300 is partially pulled out of the second spiral reel 130, the force applying device 400 cannot transmit the applied torque to the drive shaft by the one-way ratchet (not shown), so that the drive shaft 110 can only rotate in a single direction.

Example 2

The second embodiment of the present invention is a side view schematic diagram of the various stages of actuation of the continuously variable reciprocating prime mover 2000 shown in FIGS. 2A~2C. The detailed description is as follows.

As shown in FIGS. 2A~2C, the stepless reciprocating prime mover 2000 disclosed in the second embodiment of the present invention has a structure similar to that of the stepless reciprocating prime mover 1000 disclosed in the first embodiment, but the stepless speed change The reciprocating prime mover 2000 further includes a speed change mechanism 500. The speed change mechanism 500 includes a cable fixing point 510 and an extension mechanism 530, and the cable fixing point 510 can move on the extension mechanism 530. When the speed change mechanism 500 is switched to In the high gear, the cable fixing point 510 is moved on the extension mechanism 530 as shown in FIG. 2B so that the rope 300 is partially pulled out of the first spiral reel 120 and partially received in the second spiral reel 130, and The distance R between the first and second contact points 310, 320 is reduced, and when the force applying device 400 moves forward with the linear motion portion 350 parallel to the rope, the first and second contact points 310 are made The distance R between 320 and 320 is further reduced; in addition, when the transmission mechanism 500 is switched to a low speed gear, the cable fixing point 510 is moved on the extension mechanism 530 so that the rope 300 is partially pulled out of the second spiral The spool 130 is partially received by the first helical spool 120, and the distance R between the first and second contact points 310, 320 becomes larger, and the linear motion portion of the force applying device 400 is parallel to the rope When the question 350 moves backward, the distance R between the first and second contact points 310 and 320 is further increased.

In the stepless variable speed reciprocating prime mover 2000 disclosed in the second embodiment, the shift mechanism 500 is switched between a high speed gear and a low speed gear, and the first and second spiral spools are first made when the force applying device 400 is at rest The distance R between the first and second contact points 310 and 320 of the 120 and 130 contacts first shrinks or changes Large, and the first and second that further contact the rope 300 with the first and second spiral reels 120, 130 when the force applying device 400 moves forward or backward in a direction parallel to the linear movement part 350 of the rope When the distance R between the contact points 310 and 320 is further reduced or increased, the average torque within the stroke range can be changed steplessly to achieve the stepless speed change effect.

The rope 300 of the stepless reciprocating prime mover 2000 may be composed of a single material or may be connected in series by more than one material.

In other embodiments according to the present invention, the stepless variable speed reciprocating prime mover 2000 may be further introduced into the pulley 450 as shown in FIGS. 2A~2C if necessary, and disposed between the first and second runners 100 and 200. , So that the rope 300 forms at least a tight rope linear movement part 350 between the first runner 100 and the second runner 200.

In other embodiments according to the present invention, the stepless variable speed reciprocating prime mover 2000 may further introduce a unidirectional ratchet (not shown) as needed, and the first runner 100 is transmitted through the unidirectional ratchet (not shown) ) Coupled to the drive shaft 110, when the rope 300 is partially pulled out of the first helical winding shaft 120, the force applying device 400 transmits the applied torque to the drive shaft through the one-way ratchet (not shown) 110, and when the rope 300 is partially pulled out of the second helical spool 130, the force applying device 400 cannot transmit the applied torque to the drive shaft by the one-way ratchet (not shown), thereby enabling The drive shaft 110 can only rotate in a single direction.

Example Three

The third embodiment of the present invention is a side view schematic diagram of various stages of actuation of the stepless variable speed reciprocating prime mover 3000 shown in FIGS. 3A to 3D. The detailed description is as follows.

As shown in FIGS. 3A~3D, the stepless reciprocating prime mover 3000 disclosed in the third embodiment of the present invention has a structure similar to that of the stepless reciprocating prime mover 1000 disclosed in the first embodiment, but the stepless speed change The reciprocating prime mover 3000 further includes a speed change mechanism 600, and the speed change mechanism 600 Include a movable guide wheel set 650, wherein when the speed change mechanism 600 is switched to a high-speed gear, the movable guide wheel set 650 is first moved relative to the rope as shown in FIG. 3A when the force applying device 400 is at rest The substantially vertical direction of 300 moves upwards, so that the rope 300 is partially pulled out of the first spiral spool 120 and partially received in the second spiral spool 130, and between the first and second contact points 310, 320 The distance R decreases, and when the force applying device 400 moves forward in a direction parallel to the linear movement part 350 of the rope, the distance between the first and second contact points 310, 320 is as shown in FIG. 3B R is further reduced; in addition, when the transmission mechanism 600 is actuated and switched to a low gear, the movable guide wheel group 650 moves downward with respect to the substantially vertical direction of the rope as shown in FIG. 3C, and is stationary at the force applying device 400 When the rope 300 is partially pulled out of the second spiral spool 130 and partially received in the first spiral spool 120, the distance R between the first and second contact points 310, 320 becomes larger, And when the force applying device 400 moves backward in the direction parallel to the linear movement part 350 of the rope, the distance R between the first and second contact points 310, 320 is further increased as shown in FIG. 3D.

In the stepless reciprocating prime mover 3000 disclosed in the third embodiment, the speed change mechanism 600 is switched between a high speed gear and a low speed gear, and when the force applying device 400 is at rest, the first and second spiral spools are first made The distance R between the first and second contact points 310, 320 of the 120 and 130 contacts first shrinks or becomes larger, and when the force applying device 400 moves forward or backward in a direction parallel to the linear movement part 350 of the rope As shown in FIG. 3D, the distance R between the first and second contact points 310, 320 of the rope 300 and the first and second spiral spools 120, 130 is further reduced or increased, Steplessly change the average torque within the stroke range to achieve stepless speed change. The rope 300 of the stepless reciprocating prime mover 3000 may be composed of a single material or be connected in series by more than one material.

In other embodiments according to the present invention, the stepless variable speed reciprocating prime mover 3000 can be further introduced into the pulley 450 as shown in FIGS. 3A to 3D if necessary, and is disposed between the first and second runners 100 and 200. , So that the rope 300 forms at least a tight rope linear movement part 350 between the first runner 100 and the second runner 200.

In other embodiments according to the present invention, the stepless variable speed reciprocating prime mover 3000 can further introduce a one-way ratchet (not shown) as needed, and the first runner 100 is transmitted through the one-way ratchet (not shown) ) Coupled to the drive shaft 110, when the rope 300 is partially pulled out of the first helical winding shaft 120, the force applying device 400 transmits the applied torque to the drive shaft through the one-way ratchet (not shown) 110, and when the rope 300 is partially pulled out of the second helical spool 130, the force applying device 400 cannot transmit the applied torque to the drive shaft by the one-way ratchet (not shown), thereby enabling The drive shaft can only rotate in a single direction.

Example 4

As shown in FIG. 4, according to Embodiment 4 of the present invention, a rear-wheel-drive two-wheeled bicycle 4000 is disclosed, which includes a stepless reciprocating prime mover 1000, a seat cushion 4100, and a handle 4300 as disclosed in Embodiment 1. A frame 4500, a free wheel 4700A and a driving wheel 4700B, and the stepless speed reciprocating prime mover 1000 is disposed on the driving wheel 4700B.

As shown in FIG. 4, when the force applying device 400 moves forward in a direction parallel to the linear movement part 350 of the rope, the rope 300 is partially pulled out of the first spiral reel 120 and partially received in the second spiral The spool 130, the length of the rope 300 pulled out of the first spiral spool 120 is equal to the length of the rope 300 received in the second spiral spool 130, and the first and second contact points 310, 320 are gradually away from the The second and fourth ends 125B and 135B, and the distance R between the first and second contact points 310 and 320 gradually decreases; similarly, when the force applying device 400 is rearward in a direction parallel to the linear movement part 350 of the rope During the movement, the rope 300 is partially received in the first spiral reel 120 and partially pulled out of the second spiral reel 130. The length of the rope 300 received in the first spiral reel 120 is equal to the length of being pulled out of the second The length of the rope 300 of the spiral spool 130, the first and second contact points 310, 320 gradually approach the second and fourth ends 125B, 135B, respectively, and between the first and second contact points 310, 320 distance The distance R gradually becomes larger. By making the force applying device 400 run the reciprocating linear motion stroke of the linear motion part 350 of the rope, the torque applied to the drive shaft 110 varies with the first and second contact points 310, 320. The distance R changes and is changed, so that the drive wheel 4700B is driven by the drive shaft 110 and achieves the purpose of stepless speed change. In addition, the continuously variable reciprocating prime mover 1000 further includes a one-way ratchet (not shown), and the first runner 100 is coupled to the drive shaft 110 through the one-way ratchet (not shown), and the The driving shaft 110 drives the driving wheel 4700B forward. When the rope 300 is partially pulled out of the first helical spool 120, the force applying device 400 transmits the applied torque to the unidirectional ratchet (not shown) to the The driving shaft 110, and when the rope 300 is partially pulled out of the second helical winding shaft 130, the force applying device 400 cannot transmit the applied torque to the driving shaft 110 by the one-way ratchet (not shown), Therefore, the driving shaft 110 can only rotate in a single direction.

In addition, in other embodiments according to the present invention, the continuously variable reciprocating prime mover 2000 including the transmission 500 disclosed in Embodiment 2 or the continuously variable reciprocating prime mover 3000 including the transmission 600 disclosed in Embodiment 3 may also be applicable In the rear-wheel-drive two-wheeled bicycle 4000 as disclosed in FIG. 4, the operating principle is as described above, and will not be repeated here.

Example 5

As shown in FIG. 5, according to the fifth embodiment of the present invention, a rear-wheel drive three-wheel bicycle 5000 is disclosed, which includes a stepless reciprocating prime mover 1000, a seat cushion 4100, a handle 4300, a bicycle as disclosed in the first embodiment. A frame 4500 and a right free wheel 4700C, a left free wheel 4700C', and a driving wheel 4700B, and the stepless variable reciprocating prime mover 1000 is disposed on the driving wheel 4700B.

As described above, when the force applying device 400 runs the reciprocating linear motion stroke at the linear motion part 350 of the rope, the torque applied to the drive shaft 110 varies with the distance R between the first and second contact points 310, 320. Is changed so that the drive wheel 4700B is driven by the drive shaft 110 and reaches a stepless For the purpose of shifting, and in other embodiments according to the present invention, the continuously variable reciprocating prime mover 2000 including the transmission 500 disclosed in Embodiment 2 or the continuously variable reciprocating prime mover 3000 including the transmission 600 disclosed in Embodiment 3 It can also be applied to the rear-wheel-drive three-wheel bicycle 5000 as disclosed in FIG. 5, and its operating principle is as described above, and will not be repeated here.

In addition, in other embodiments according to the present invention, it may further include two sets of stepless variable speed reciprocating prime movers 1000, 2000 or 3000 as disclosed in the first to third embodiments, and Each of the driving shafts 110 may be coaxial or non-coaxial. When the driving shafts of the stepless variable speed reciprocating prime movers are coaxial, the unidirectional ratchets of the stepless variable speed reciprocating prime movers (not shown) ) Is coupled to each drive shaft with the same steering. Where, when the drive shafts of the stepless variable speed reciprocating prime movers are coaxial, and the unidirectional ratchets of the stepless variable speed reciprocating prime movers are coupled to the drive shafts with the same steering, the drives The shaft can be shifted simultaneously. Where, when the drive shafts of the stepless variable speed reciprocating prime movers are non-coaxial, and the unidirectional ratchets of the stepless variable speed reciprocating prime movers are coupled to the drive shafts with the same steering, the The drive shaft can be shifted asynchronously or at different speeds.

Example Six

FIGS. 6A-6B are schematic side views of actuation of each stage of a front-wheel-drive three-wheeled bicycle 6000 according to the sixth embodiment of the present invention. As shown in FIG. 6A, a front-wheel-drive three-wheeled bicycle 6000 according to the sixth embodiment of the present invention includes a seat cushion 6100, a handle 6300, a frame 6500, and a right drive wheel 6700C and a left drive wheel 6700C' left drive wheel 6700C' and a free wheel 6700A, and further including a continuously variable reciprocating prime mover 1000, 1000' as disclosed in the first embodiment, respectively disposed on the right drive wheel 6700C and the left drive wheel 6700C'.

The structure of the continuously variable reciprocating prime mover 1000 used in this embodiment is as described in Embodiment 1, and will not be repeated here. The structure of the stepless speed reciprocating prime mover 1000’ used in this embodiment It is the same as the stepless variable speed reciprocating prime mover 1000, in which the first runner 100' is coupled to a driving shaft 110', and the first runner 100' includes a first spiral winding shaft 120' and a A second helical spool 130', the first and second helical spools 120', 130' are symmetrical with each other but do not overlap with respect to the drive shaft 110', and the first and second helical spools 120' , The mechanical angle of 130' is 180 degrees out of phase, wherein the first spiral reel 120' has a first end 125A' and a second end 125B', respectively located at the innermost diameter of the first spiral reel 120' At the outermost diameter, the first end 125A' is fixed on the driving shaft 110', and gradually changes radially outward relative to the driving shaft 110' to form the first spiral winding shaft 120', and the second The spiral spool 130' has a third end 135A' and a fourth end 135B', respectively located at the innermost diameter and the outermost diameter of the second spiral spool 130', and the third end 135A' is fixed The second spiral winding shaft 130' is formed on the driving shaft 110' and gradually becomes radially outward relative to the driving shaft 110'. Wherein, the second rotor 200' of the stepless speed reciprocating prime mover 1000' is disposed on a fixed shaft 210', and one end of the rope 300' is fixed to the first spiral reel 120' An end 125A', so that a portion of the rope 300' adjacent to the first end 125A' gradually winds from the first end 125A' along the inner diameter of the first spiral winding shaft 120' to the outer diameter, and The first contact point 310' on the first helical spool 120' is led out, after being guided around the second runner 200', it returns to enter the second helical spool 130', so that the other of the rope 300' One end is fixed to the fourth end 135B' of the second spiral spool 130', and a portion of the rope 300' adjacent to the fourth end 135B' can be gradually inward along the outer diameter of the second spiral spool 130' Around the diameter, and a second contact point 320' on the second spiral spool 130' is drawn out to form a closed loop, and the first and second contact points 310', 320' are located at At opposite mechanical angular phases on the first and second spools 120', 130', the distance between the first contact point 310' and the first end 125A' is equal to the second contact point 320' and the third end 135A' distance, and the rope forms at least a tight rope linear movement part 350' between the first runner 100' and the second runner 200'. In addition, the force applying device 400' can reciprocate forward or backward in a direction parallel to the linear movement part 350' of the rope.

As shown in FIG. 6B, when the force applying device 400, 400' moves forward in a direction parallel to the linear movement parts 350, 350' of the rope, the rope 300, 300' is partially pulled out of the first spiral, respectively Spools 120, 120', and are partly received into the second helical spools 130, 130', respectively; wherein the lengths of the ropes 300, 300' that are pulled out of the first helical spools 120, 120' are equal to the respective The lengths of the ropes 300, 300' received in the second spiral spools 130, 130', and the first and second contact points 310/310', 320/320' are gradually away from the second and fourth ends 125B, respectively /125B', 135B/135B', and the distance R, R'between the first and second contact points 310/310', 320/320' gradually decreases. Similarly, when the force-applying device 400, 400' moves backward in a direction parallel to the linear movement part 350, 350' of the rope, respectively, the rope 300, 300' is partially received in the first spiral reel 120, 120', respectively And partially pulled out of the second spiral spools 130, 130'; wherein the lengths of the ropes 300, 300' received in the first spiral spools 120, 120' are equal to the length of the second spiral spools respectively The length of the ropes 300, 300' of 130, 130', the first and second contact points 310/310', 320/320' gradually approach the second and fourth ends 125B/125B', 135B/135B', And the distance R, R'between the first and second contact points 310/310', 320/320' gradually becomes larger. By making the force applying devices 400, 400' move the reciprocating linear motion strokes of the linear motion parts 350, 350' of the rope, respectively, the torque applied to the drive shafts 110, 110' follows the first and second contact points 310 The distance R, R'between /310', 320/320' is changed to be changed, so that the right drive wheel 6700B and the left drive wheel 6700B' are driven by the drive shafts 110, 110' respectively and achieve the purpose of stepless speed change . In addition, the stepless speed reciprocating prime movers 1000, 1000' further include a one-way ratchet (not shown), and the first runner 100, 100' is coupled to the one-way ratchet (not shown) through the one-way ratchet Drive shafts 110, 110', and drive the right drive wheel 6700B and the left drive wheel 6700B' forward with the drive shafts 110, 110', respectively, and bring The free wheel 6700A is moved forward; when the ropes 300, 300' are partially pulled out of the first spiral reel 120, respectively, the force applying devices 400, 400' are driven by the unidirectional ratchets (not shown) The applied torque is transmitted to the drive shafts 110, 110', and when the ropes 300, 300' are partially pulled out of the second spiral reel 130, 130', the force applying devices 400, 400' cannot pass the unidirectional A ratchet wheel (not shown) transmits the applied torque to the driving shaft 110, so that the driving shaft 110 can only rotate in a single direction.

In addition, the drive shafts 110, 110' may be coaxial or non-coaxial. When the drive shafts 110, 110' are coaxial, and the stepless variable speed reciprocating prime movers 100, 100' each one-way ratchet (not (Shown) is coupled to each of the drive shafts 110, 110' with the same steering, the drive shafts 110, 110' can be synchronously shifted; when the drive shafts 110, 110' are non-coaxial, and the stepless variable speed reciprocating When the one-way ratchets (not shown) of the prime movers 100, 100' are coupled to the drive shafts 110, 110' with the same steering, the drive shafts 110, 110' can be shifted asynchronously or at different speeds, and The front wheel driving tricycle 6000 can be driven forward or steered by controlling the traveling speeds of the right driving wheel 6700B and the left driving wheel 6700B' to be equal or unequal. When the speed of the drive shaft 110' is greater than the speed of the drive shaft 110, that is, the speed of the left drive wheel 6700B' is greater than the right drive wheel 6700B, the bicycle turns to the right; when the speed of the drive shaft 110 is greater than the When the rotation speed of the driving shaft 110', that is, the rotation speed of the right driving wheel 6700B is greater than that of the left driving wheel 6700B', the bicycle turns to the left.

In addition, in other embodiments according to the present invention, the continuously variable reciprocating prime movers 1000 and 1000' in the front-wheel drive three-wheeled bicycle 6000 as disclosed in FIGS. 6A to 6B can also be used as disclosed in the second embodiment. The stepless reciprocating prime mover 2000 of the transmission 500 or the stepless reciprocating prime mover 3000 including the transmission 600 disclosed in Embodiment 3 is replaced. The operating principle is as described above, and will not be repeated here.

In summary, although the present invention is disclosed as above with the preferred embodiments, it is not intended to limit the present invention. Anyone who has ordinary knowledge in the technical field of the art can change it without departing from the spirit and scope of the present invention. Combine the various embodiments described above.

100: first runner

110: drive shaft

120: The first spiral reel

125A: the first end

125B: the second end

130: second spiral reel

135A: third end

135B: The fourth end

200: second runner

210: fixed shaft

300: rope

310: first touch point

320: second touch point

350: linear movement of the rope

400: force-applying device

450: pulley

1000: Stepless speed reciprocating prime mover

R: distance between the first contact point 310 and the second contact point 320

Claims (19)

A stepless variable speed reciprocating prime mover includes: a first rotating wheel coupled on a drive shaft, and the first rotating wheel includes a first spiral winding shaft and a second spiral winding shaft, the first and second The spiral spools are symmetrical with each other but do not overlap with respect to the drive shaft, and the mechanical angles of the first and second spiral spools are 180 degrees out of phase, wherein the first spiral spool has a first end and a first The two ends are located at the innermost diameter and the outermost diameter of the first spiral reel, respectively, and gradually become radially outward relative to the drive shaft to form the first spiral reel, and the second spiral reel Having a third end and a fourth end, respectively located at the innermost diameter and the outermost diameter of the second spiral spool, and gradually becoming radially outward relative to the drive shaft to form the second spiral spool; A second revolver, which is arranged on a fixed shaft; a rope, one end of which is fixed to the first end of the first spiral reel, so that part of the rope adjacent to the first end runs from the first end along the first The inner diameter of a spiral winding spool gradually detours to the outer diameter, and is drawn from a first contact point on the first spiral winding spool. After being guided around the second runner, it returns to enter the second Helical spool, the other end of the rope is fixed to the fourth end of the second helical spool, and the part of the rope adjacent to the fourth end can be gradually inward along the outer diameter of the second helical spool Go around and position a second contact point on the second spiral spool to be drawn out to form a closed loop, and the first and second contact points are located on the first and second spool At the opposite mechanical angle phase, the distance between the first contact point and the first end is equal to the distance between the second contact point and the third end, and the rope is at least between the first runner and the second runner Forming a tight linear movement part of the rope, when the first contact point where the rope is drawn from the first spiral spool is located at the second end of the first spiral spool, the rope The second contact point from which the second helical spool is drawn is located at the fourth end of the second helical spool; and a force applying device, and the force applying device can be parallel to the direction of the linear movement of the rope Reciprocating upward or backward; wherein, when the force applying device moves forward in a direction parallel to the linear movement part of the rope, the rope part is pulled out of the first spiral reel and partly received in the second spiral reel Shaft, the length of the rope pulled out of the first spiral spool is equal to the length of the rope received in the second spiral spool, the first and second contact points are gradually away from the second and fourth ends, respectively, and the first The distance between the second contact points gradually decreases, and when the force applying device moves backward in a direction parallel to the linear movement part of the rope, the rope part is received into the first spiral reel and partly pulled out of the second In the spiral spool, the length of the rope received in the first spiral spool is equal to the length of the rope pulled out of the second spiral spool. The first and second contact points gradually approach the second and fourth ends, respectively, and the The distance between the first and second contact points gradually becomes larger, so that the torque applied by the force applying device to the drive shaft during the reciprocating linear motion stroke varies with the distance between the first and second contact points Changed to be changed to achieve the purpose of stepless speed change. As in the stepless reciprocating prime mover described in item 1 of the patent application scope, the rope may be composed of a single material or be connected in series by more than one material. The stepless variable speed reciprocating prime mover as described in item 1 of the scope of the patent application further includes a speed change mechanism disposed on the rope between the first and second wheels; wherein, when the speed change mechanism When actuated to switch to high-speed gear, the rope part is pulled out of the first spiral spool and partially received in the second spiral spool, and the first and second contact points are away from the second and fourth ends, respectively, The distance between the first and second contact points is reduced; Wherein, when the speed change mechanism is actuated to switch to the low gear, the rope part is pulled out of the second spiral spool and partly received in the first spiral spool, and the first and second contact points are close to the first 2. At the fourth end, the distance between the first and second contact points becomes larger; by switching the high-speed gear and the low-speed gear by the speed change mechanism, the force applying device is operated within the reciprocating linear motion stroke, The distance between the first and second contact points corresponding to the contact between the rope and the first and second helical winding shafts will be reduced or increased accordingly, and the average torque within the stroke range can be changed steplessly to achieve stepless speed change effect. As described in item 3 of the patent application, the stepless variable speed reciprocating prime mover includes a cable fixing point and an extension mechanism. The cable fixing point can be moved on the extension mechanism. When the transmission mechanism is switched to high speed When the gear is in position, the fixing point is moved on the extension mechanism so that the rope part is pulled out of the first helical spool and partly received in the second helical spool, and between the first and second contact points The distance is reduced, when the speed change mechanism is switched to a low gear, the cable fixing point is moved on the extension mechanism so that the rope part is pulled out of the second helical spool and partly received in the first helical spool, And make the distance between the first and second contact points larger. As described in item 3 of the patent application range, the stepless variable reciprocating prime mover, the speed change mechanism includes a movable guide wheel group, when the speed change mechanism is switched to high gear, the movable guide wheel group causes the rope part to be pulled Out of the first spiral spool and part of it is taken into the second helical spool, and the distance between the first and second contact points is reduced, when the transmission mechanism is switched to a low speed, the movable guide wheel set Instead, the rope part is pulled out of the second spiral spool and part of it is received in the first spiral spool, and the distance between the first and second contact points becomes larger. The stepless reciprocating prime mover as described in item 1 of the scope of the patent application further includes a pulley arranged between the first and second wheels, so that the rope is between the first wheel and the second wheel At least one tight rope linear movement part is formed between the wheels. The continuously variable reciprocating prime mover as described in any one of items 1 to 6 of the patent application scope further includes a one-way ratchet, and the first rotating wheel is coupled to the drive shaft through the one-way ratchet, when the When the rope part is pulled out of the first spiral spool, the force applying device transmits the applied torque to the drive shaft through the unidirectional ratchet, and when the rope part is pulled out of the second spiral spool, the force The force device cannot transmit the applied torque to the drive shaft by the one-way ratchet, so that the drive shaft can only rotate in a single direction. A bicycle includes a stepless variable-speed reciprocating prime mover, and the stepless variable-speed reciprocating prime mover includes: a first rotating wheel coupled to a driving shaft, and the first rotating wheel includes a first spiral winding shaft and A second helical spool, the first and second helical spools are symmetrical with each other but do not overlap with respect to the drive shaft, and the mechanical angle of the first and second helical spools are 180 degrees out of phase, wherein the The first helical spool has a first end and a second end, respectively located at the innermost diameter and the outermost diameter of the first helical spool, and gradually changes radially outward relative to the drive shaft to form the first A spiral spool, and the second spiral spool has a third end and a fourth end, respectively located at the innermost diameter and the outermost diameter of the second spiral spool, and gradually increases relative to the drive shaft The second spiral spool is formed by changing the radial direction outward; a second runner is provided on a fixed shaft; a rope is fixed at one end to the first end of the first helical spool so as to be adjacent to the first At the end, the rope gradually extends outward from the first end along the inner diameter of the first spiral spool Around the diameter, and is led out from a first contact point on the first helical spool, after being guided around the second runner, it returns to the second helical spool, making the other end of the rope It is fixed to the fourth end of the second spiral spool, so that part of the rope adjacent to the fourth end can gradually wind along the outer diameter of the second spiral spool to the inner diameter, and position itself at the first The second contact points on the two spiral spools are led out to form a closed loop, and the first and second contact points are located at opposite mechanical angular phases on the first and second spools respectively. The distance between the point and the first end is equal to the distance between the second contact point and the third end, and the rope forms at least a tight rope linear movement portion between the first runner and the second runner, When the first contact point where the rope is drawn from the first spiral spool is located at the second end of the first spiral spool, the second point where the rope is drawn from the second spiral spool The contact point is located at the fourth end of the second spiral spool; and a force applying device, and the force applying device can reciprocate forward or backward in a direction parallel to the linear motion part of the rope; wherein, when When the force applying device moves forward in a direction parallel to the linear movement part of the rope, the rope part is pulled out of the first spiral reel and partly received in the second spiral reel and pulled out of the first spiral reel The length of the rope is equal to the length of the rope received in the second spiral spool, the first and second contact points are gradually away from the second and fourth ends, respectively, and the distance between the first and second contact points is gradually reduced , And when the force-applying device moves backward in a direction parallel to the linear movement part of the rope, the rope part is received into the first spiral reel and partly pulled out of the second spiral reel to be received into the first spiral reel The length of the rope of the shaft is equal to the length of the rope pulled out of the second helical spool, the first and second contact points gradually approach the second and fourth ends, respectively, and the distance between the first and second contact points Gradually become larger, so that the force applying device is operating The torque applied to the drive shaft during the reciprocating linear motion stroke changes with the distance between the first and second contact points, achieving the purpose of stepless speed change. As in the bicycle described in item 8 of the patent application range, the rope in the stepless reciprocating prime mover may be composed of a single material or be connected in series by more than one material. According to the bicycle described in item 8 of the patent application scope, the stepless speed reciprocating prime mover further includes a speed change mechanism, which is disposed on the rope between the first runner and the second runner; wherein, when the When the speed change mechanism is actuated to switch to the high-speed gear, the rope part is pulled out of the first spiral spool and partially received in the second spiral spool, and the first and second contact points are away from the second and fourth, respectively At the end, the distance between the first and second contact points is reduced; wherein, when the transmission mechanism is actuated to switch to the low gear, the rope part is pulled out of the second spiral spool and partly received in the first spiral The spool, and the first and second contact points are close to the second and fourth ends, respectively, the distance between the first and second contact points becomes larger; by the speed change mechanism between the high speed gear and the low speed gear The switching of the force application device causes the distance between the first and second contact points corresponding to the contact between the rope and the first and second spiral winding shafts to decrease or increase during the reciprocating linear motion stroke The average torque in the stroke range can be changed steplessly to achieve the stepless speed change effect. As in the bicycle described in item 9 of the patent application scope, the speed change mechanism in the stepless reciprocating prime mover includes a cable fixing point and an extension mechanism, and the cable fixing point can move on the extension mechanism when the speed is changed When the actuation of the mechanism is switched to the high-speed gear, the fixing point is moved on the extension mechanism so that the rope part is pulled out of the first spiral spool and partly received in the second spiral spool, and the first and the first The distance between the two contact points is reduced. When the transmission mechanism is switched to a low speed gear, the cable fixing point is at The upward movement of the extension mechanism causes the rope part to be pulled out of the second spiral spool and partly received in the first spiral spool, and the distance between the first and second contact points becomes larger. As in the bicycle described in item 9 of the patent application range, the speed change mechanism in the stepless reciprocating prime mover includes a movable guide wheel group. When the speed change mechanism is switched to a high-speed gear, the movable guide wheel group makes the The rope part is pulled out of the first spiral spool and partly received in the second spiral spool, and the distance between the first and second contact points is reduced. When the transmission mechanism is switched to a low gear, the The movable guide wheel group causes the rope part to be pulled out of the second spiral spool and partially received in the first spiral spool, and the distance between the first and second contact points becomes larger. As in the bicycle described in item 8 of the patent application, the stepless variable reciprocating prime mover further includes a pulley disposed between the first and second wheels, so that the rope is connected between the first wheel and the first wheel At least one tight rope linear movement part is formed between the two wheels. As described in any of the patent application items 8 to 13, the stepless reciprocating prime mover further includes a unidirectional ratchet, and the first rotating wheel is coupled to the drive shaft through the unidirectional ratchet, When the rope part is pulled out of the first spiral spool, the force applying device transmits the applied torque to the drive shaft through the unidirectional ratchet, and when the rope part is pulled out of the second spiral spool The force applying device cannot transmit the applied torque to the drive shaft through the unidirectional ratchet, so that the drive shaft can only rotate in a single direction. The bicycle as described in item 14 of the patent application scope includes two sets of the stepless variable speed reciprocating prime movers, and the drive shafts of the stepless variable speed reciprocating prime movers are coaxial or non-coaxial. As in the bicycle described in item 15 of the patent application scope, the drive shafts of the stepless reciprocating prime movers are coaxial, and the unidirectional ratchets of the stepless reciprocating prime movers are coupled with the same steering Each of these drive shafts. As in the bicycle described in item 16 of the patent application, the drive shafts can be shifted synchronously. As in the bicycle described in item 15 of the patent application scope, the drive shafts of the stepless reciprocating prime movers are non-coaxial, and the unidirectional ratchets of the stepless reciprocating prime movers are coupled with the same steering For each drive shaft. As in the bicycle described in item 18 of the patent application, the drive shafts may be shifted asynchronously or at different speeds.

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