TWM470058U - A driving apparatus conforming to the human engineering - Google Patents

Description

Ergonomic drive

This creation is related to an ergonomic drive, especially a ratio that changes the pedal force and output torque with the position of the pedal, making the pedal higher and more labor-saving, and can be shifted using the common bicycle shifter. Bicycle drive mechanism.

The conventional bicycle converts the pedal to the driving torque of the motive chain gear connected to the pedal by the force of the pedal, and is driven by the chain connecting the motive chain gear and the driven chain gear on the rear wheel. The wheel, because the shank is in a circular motion, the force of the pedal pedal changes the force of the urging arm and the generated driving torque with the rotation of the shank, and the torque outputted by the drive shaft and the pedal force the pedal The ratio (torque to force ratio) is the largest when the handle is about horizontal, and decreases as the handle is increased or decreased from the vicinity of the horizontal position. When the handle is rotated to approximately vertical, the force exerts the foot on the pedal. The driving torque is zero by the center of rotation of the handle, however, there are two possibilities when the handle is about vertical, one is about the highest position of the pedal, one is about the lowest position of the pedal, and the degree of bending of the foot when the pedal is at the highest position. About the maximum, the degree of bending of the foot is about the minimum when the pedal is at the lowest position. According to the ergonomic theory, the more the foot bends, the smaller the thrust that the foot can exert, the more the foot is straightened, and the more the foot can be applied. Big, because The ideal human drive mechanism should have the maximum torque and force ratio when the pedal is in the high position to reduce the load of the foot. When the pedal is stepped down, it can maintain a stable torque and force ratio to increase the speed of the pedal. The force ratio is the smallest, However, the ratio of the speed of the vehicle to the speed of the pedal should be the largest. The driving mechanism of the bicycle is to generate the maximum torque and force ratio when the handle is close to the horizontal position. When the pedal is increased or decreased by the horizontal position of the handle, the torque is reduced. Compared with the force ratio, the torque and the force ratio are close to zero when the pedal is near the highest and lowest positions, which obviously does not meet the ideal of the human drive mechanism.

The reciprocating pedal mechanism has been found in the Republic of China new patent certificate number: M313100. Although it discloses a structure of a recreational bicycle with a reciprocating pedal mechanism, the designed pedal is a backward-type reciprocating pedal mechanism, so it is not suitable for design. The seat allows people to ride on the pedals in a reciprocating manner. Only the two people can stand on the two pedals in a stand-up manner, and step on the two pedals to drive the bicycle forward, but it has the following disadvantages. :

1. The pedal is designed for the rear pedal, which is not in line with human body mechanics, so it is not suitable for the seat to make the pedal reciprocating on the pedal.

2. It can only be used by people to stand on the two pedals in a stand-up manner, and to step on the two pedals to drive the bicycle forward. It can not stand for a long time and is quite laborious, and is not suitable for long-distance riding.

3. It can only be used by people to stand on the two pedals in a standing position, and to step on the two pedals. The weight of the individual is used as the main source of force for trampling. When the force is applied, it will be easy to dump due to insufficient force, and then the danger will occur.

4. Its variable speed design limits the use of bicycles.

The above problems have always lacked the ideal solution, which has long plagued the bicycle industry and many users.

According to the conventional bicycle design, as shown in the seventeenth, eighteenth and nineteenth drawings, a pair of left and right cranks (4) (3) provided on both sides of the drive shaft (5), By stepping on Stepping the left and right pedals (41) (31) causes the left and right cranks (4) (3) to drive the drive shaft (5) and the motive sprocket (51) on the drive shaft (5) side as a chain (52) The driven sprocket (53) provided on the rear wheel (54) is driven to rotate the rear wheel (54), but the conventional bicycle is driven by the left and right legs in a circular manner, which is left and right. When the crank (4) (3) is turned to the upper and lower vertical positions and one of the right or left cranks (3) (4) is turned into the starting range (A) and the ending range (C), the effective force range is Because the pedal of the bicycle pedals on the pedal during the stroke, the efficiency of the leg muscles changes periodically. When the pedal is at the high and low positions, the pedal is quite laborious, while the effective force range of the right or left foot only falls in the middle. In the range (B), the rest of the range is the invalid force range. Therefore, the effective angle range of the traditional bicycle left and right foot pedaling is too small, and the output force is discontinuous, so the time of the output can be wasted, which will affect The advantage of racing.

Therefore, the traditional bicycle can be summarized as follows:

1. The efficiency of the muscles in the pedal stroke changes periodically, and the pedals are strenuous at high and low levels, and the pedals become closer to vertical and more laborious.

2. From the top, the output cannot be continuous. For example, when climbing, on the entire uphill section, the foot can't stop, but the upper vertex can't work hard.

3. Due to the above, the single output stroke is limited, for example, the intersection is unstable at the start.

4. You must draw a circle when you step on the foot, which is a waste of effort.

5. Can't ride on one foot.

6. The knee bends a lot when riding.

Please refer to the patent No. 100126172 previously filed by the creator. This creation is a more advanced design of the application. The design of the previous case has the following points to be improved. At:

1. It uses the non-circular sprocket set to change the relative rotational speed of the pedal and the rear wheel, but the shifting range is limited, and the performance of the conventional mechanism can only be slightly adjusted, and since the pedal still needs to draw a circle, the problem of the ineffective area of the upper and lower output cannot be solved.

2. The pedal is connected to the rear wheel bevel gear by the torque shaft. The sprocket and the chain are not used, because the pedal still needs to draw a circle, and the problem of the ineffective area of the upper and lower output cannot be solved.

3. It is combined with the rear wheel pivot type reciprocating pedal: the pedal handle and the rear wheel shaft are pivotally connected via the ratchet wheel, the pedal handle is lengthened a lot, and the pedal movement stroke is stepped on the upper and lower reciprocating manners, and the pedal movement stroke is closer to a straight line than the arc drawn by the conventional pedal. The mechanism is simple and the mechanical interest is high, but the relative rear wheel speed is much slower, and it cannot be combined with the common derailer shifting mechanism, and the shifting is difficult and the cost is high.

4. Pivot-adjustable reciprocating pedal: the pedal is pedaled in the same way as above, the pedal shaft is not directly connected to the rear wheel, and the shifting position can be adjusted because the fulcrum position is adjustable, but the fulcrum position is adjusted to a single artificial manner. Adjustment, can not automatically adjust according to the pedal position in the pedal stroke, and because the length of the pedal handle is close to the length of the conventional pedal handle, the force-applying arm in the reciprocating stroke still changes greatly like the conventional pedal, and the farther the pedal is from the horizontal position, the force arm The smaller the output, the smaller the torque that can be output, and the problem of the ineffective area of the upper and lower output cannot be effectively solved.

In view of the practical difficulties of the above-mentioned bicycles and the lack of improvement, the creator hopes to provide a breakthrough design to enhance the practical effect. It is a research and design system, and has been engaged in the design and production of related products for many years. The professional technical knowledge and practical experience and the results of the research and design have finally produced an ergonomic driving device to provide users.

The present invention provides an ergonomic driving device that can adjust the ratio of the torque outputted by the drive shaft to the force applied to the pedal (torque and force ratio) by adjusting the pivotal position of the flexible link on the pedal. The high and low strokes are almost the same, large and small, or small and large, and the drive mechanism can change the speed ratio of the drive shaft to the rear wheel using the shifter of the bicycle, and the foregoing prior art can be dispensed with. Disadvantages, although the main purpose of this drive mechanism is on bicycles, this creation can be used on any pedal-driven machine, including tricycles, pedal four-wheelers, pedal-propellers, and other suitable for converting reciprocating motion into one-way intermittent Turn the pedal mechanism.

This creation is the first bicycle driving mechanism based on ergonomics, which can change the pedal torque output according to the degree of knee bending, and can adjust the changing range to adapt to the road condition. This mechanism can eliminate the traditional bicycle pedal in the high and low position. Insufficient problems, allowing the user to continuously apply force without idling (as shown in Figure 6). This mechanism uses the innovative phase angle adjustment method to easily adjust the torque output of the pedal in the high and low position, so that the foot is more The more labor-saving, the faster the output can be accelerated. The mechanism has the advantages of simplicity, light weight and low cost. It can retain the shifting function of the traditional bicycle, allowing the user to fully enjoy the riding pleasure. The reciprocating pedal of the mechanism Separating the left and right sides, the stroke range and mode of the foot can be extremely flexible. For example, the two legs can be powered separately or simultaneously, or the force can be applied only within part of the pedal stroke, because the pedal stroke is reduced (such as the seventh As shown in the figure, it can reduce the degree of knee bending and load when the two feet are applied, and the heel can be grounded without stopping when parking.

This creative design has the following advantages:

1. Solve the problem of the upper and lower invalid areas of the traditional bicycle pedal, and further The amount of force applied to the stroke range of the pedal is adjusted to suit the needs of different users and bicycles.

2. Eliminate the limitation of the relative rotational movement of the traditional bicycle pedal, so that the two feet can pedal or rest at any range and frequency.

3. Converting the invalid stroke range of the traditional bicycle pedal to the effective stroke range allows the user to have more force-applying space to use, and can continuously output and accelerate faster.

4. When you step on the bottom, the knee joint is straighter, and it is easier to produce more output. Unlike the traditional bicycle, you can rotate it without stepping on it. You can go all the way to the end, let you enjoy the acceleration of "stepping on the bottom".

5. When the foot is lifted, the pedal will automatically follow up to any position without the need to reverse the pedal.

6. After the two feet leave, the pedal automatically rises to the position for easy cart.

7. It is more stable when carrying people or carrying heavy loads. When the rear seat is loaded, the feet will not touch each other.

8. The mechanism is simple and durable, quiet and reliable, and low in manufacturing cost.

9. This creation does not change the original bicycle shifting mechanism, and is completely compatible with the traditional bicycle shifting mechanism. Therefore, it can be shifted according to the traditional bicycle mode, and the output should be infinitely powerful.

In order to make your review board more aware of the structural features and efficacy of this creation, we will cooperate with the schema and elaborate on it later.

(1) ‧‧‧Bicycles

(11) ‧‧‧ bracket

(111) (5) ‧‧‧ drive shaft

(12)‧‧‧One-way drive components

(121)‧‧‧One-way clutch

(1212)‧‧‧ oblique push surface

(1211)‧‧‧ Drives

(12111)‧‧‧ keys

(1214) ‧‧‧Clutch disk

(12141) ‧ ‧ STOP

(1215)‧‧‧ Roller

(1216) ‧ ‧ 片

(122)‧‧‧Chain gears

(1221)‧‧‧ cable wheel

(1222)‧‧‧ Pulley

(123)‧‧‧ Guard ring

(13) (51) ‧ ‧ original chain gear

(14) (52) ‧ ‧ chain

(15) (53) ‧‧‧ driven chain gears

(16) (54) ‧ ‧ rear wheel

(17) ‧‧‧ pivot

(2) ‧‧‧ pedaling mechanism

(21)‧‧‧

(211)(213)(215)‧‧‧Pivot hole

(212)‧‧‧ pedal

(2131)‧‧‧Pivot latch

(214)‧‧‧Locking frame

(216)‧‧‧Locking screws

(22)‧‧‧Flexible connecting rod

(221) ‧‧‧ pivot end

(2211) ‧‧‧ holes

(222)‧‧‧Laso

(223)‧‧‧Land

(23)‧‧‧ Pull chain gear

(231) ‧‧‧ 拉力索轮

(232)‧‧‧Rally Pulley

(24) ‧ ‧ spring

(241)‧‧‧Connecting parts

(3) ‧‧‧Right crank

(31)‧‧‧Right pedal

(4) ‧ ‧ left crank

(41)‧‧‧ Left pedal

(A) ‧‧‧ starting range

(B) ‧ ‧ mid-range

(C) ‧ ‧ termination range

The first figure is an exploded perspective view of one of the preferred embodiments of the present invention.

The second picture is a perspective view of the creation.

The third picture is a side view of the creation of the handle at the highest position.

The fourth picture is a side view of the creation of the handle at the lowest position.

The fifth picture is a schematic diagram of the relationship between the force applied arm and the phase angle of the tread mechanism.

The sixth figure is a schematic diagram of the relative change curve of the pedal urging arm and the chain urging arm when the phase angle of the tread mechanism is changed.

The seventh figure is a schematic diagram of the torque variation curve of the torque output of the different phase angles of the tread mechanism.

The eighth figure is a schematic diagram of the torque output change curve when the tread mechanism chain is connected to the pivot hole at different positions on the handle.

The ninth figure is a schematic diagram showing the curve of the force application cycle of the tread mechanism and the traditional bicycle.

The tenth figure is a perspective view of an embodiment of the present invention using a cable and a cable drive.

The eleventh figure is a perspective view of an embodiment in which the belt is driven by a belt and a pulley.

The twelfth figure is an exploded perspective view of the unidirectional driving element of the present invention.

The thirteenth picture is a combined perspective view of the unidirectional driving elements of the present invention.

The fourteenth figure is a cross-sectional view of the present sprocket gear and the unidirectional driving element when the drive shaft is normally driven.

The fifteenth figure shows that the driving shaft of the present invention is rotated backward by the original moving gear, so that the clutch disc is fixed to the frame of the frame, and the roller is moved to a wide position of the inclined pushing surface so that the roller no longer clamps the driving shaft. The drive shaft can be cut as the original chain gear rotates backward.

The sixteenth figure is a partial perspective view of the present invention when the bicycle is pushed backward to cause the motive chain gear to drive the shaft to rotate backward.

Figure 17 is a diagram showing an embodiment in which the left and right cranks of the conventional bicycle are in a vertical state.

The eighteenth figure is an embodiment of the conventional bicycle when the right crank enters the effective angle range of the pedaling.

The nineteenth figure is an embodiment of a conventional bicycle when the left crank enters the effective angle range of the pedaling.

Referring to the first, second, third and fourth figures, the present invention relates to an ergonomic drive device, the main method of which is to change the flexible link relative to the connection handle ( 21) The position of the connection point, such that the ratio of the force applied by the foot to the pedal (212) through the flexible link to the drive shaft (111) and the generated drive torque is due to the position of the pedal (212) The height change is changed, and by changing the position of the connection point of the flexible link with respect to the different pivot hole (213) connected to the handle (21), the pedal (212) position can be made higher and labor-saving, and During the process of pedal (212) from high to low, the ratio of torque to force is constant, or may be smaller or larger, and the leg of the human body is applied to the handle (21) and the handle. (21) Those who drive the drive mechanism to achieve the best possible efficiency.

Based on the reciprocating pedal mechanism, this design uses a two-stage transmission and phase angle adjustment method to develop a method and device for changing the force applied arm and torque when the variable speed and adjustable pedal are rotated in the simplest way.

The main device is on both sides of the driving shaft (111) of the bicycle (1) motive chain gear (13), each of which is provided with a corresponding and independent pedaling mechanism (2), and each pedaling mechanism (2) comprises a one-way driving The component (12), a flexible connecting rod (22) and a handle (21), wherein the one-way driving component (12) is disposed on a driving shaft (111) of the bicycle (1) motive chain gear (13) The unidirectional driving element (12) is only unidirectionally driven to rotate the driving shaft (111) of the bicycle (1) of the original sprocket (13), and the pivoting hole (211) of one end of the shank (21) is pivotally connected to A pivot (17) disposed at a position below the drive shaft (111) of the bicycle (1) bracket (11) is provided with one or more pivot holes (213) at a lower edge of the handle (21). The sexual link (22) is sleeved in the one-way driving element (12) The pivoting end (221) of one end of the flexible connecting rod (22) is pivotally connected to the pivot hole (213) provided at the lower edge of the handle (21), and the other end of the flexible link (22) is The pivotal position is fixed on the bicycle (1) bracket (11), and a force device is connected to keep the flexible link (22) in a tension state, and the spring can be borrowed when the handle (21) is not stepped on (24) The tension pull back flexible link (22) pulls the handle (21) back to the highest position to facilitate the stepping, when stepping on one of the handles (21) or simultaneously stepping on the two handles (21), Pulling the flexible connecting rod (22) to drive the one-way driving element (12) to drive the driving shaft (111) of the bicycle (1) of the original sprocket (13) to drive the bicycle (1) (13) Rotating, and the chain (14) drives the driven chain gear (15) of the bicycle (1) rear wheel (16) to drive the rear wheel (16) to rotate, and this creation can be achieved by flexibility The pivoting end (221) of the connecting rod (22) is pivotally connected to the pivoting hole (213) at different positions of the lower edge of the handle (21), so that the position of the pedal (212) is higher and the labor saving can be performed. During the process of pedal (212) from high to low, the ratio of torque to force is constant, or may be smaller or smaller. The greater the size, the better the pedaling efficiency, and the moderate shifting of the bicycle (1) the original shifting mechanism, which is provided inside the pivot hole (213) of the lower edge of each handle (21), The locking screw (216) locks a locking frame (214), and the locking frame (214) is provided with a pivoting hole corresponding to the pivoting hole (213) provided on the lower edge of the handle (21) ( 215), the pivoting end (221) of one end of the flexible connecting rod (22) is assembled between the pivot hole (213) provided at the lower edge of the handle (21) and the locking frame (214), and is pivotally connected The latch (2131) passes through the pivot hole (213) provided at the lower edge of the handle (21), the hole (2211) of the pivotal end (221) of the flexible link (22), and the pivot of the locking frame (214) The hole (215) is connected, and the flexible connecting rod (22) pivoting end (221) is pivotally connected with the handle (21).

Wherein it is fixed on the drive shaft (111) of the original transmission gear (13) The one-way driving component (12) may be a ratchet or a one-way clutch (121) combined with a chain gear (122), a cable wheel (1221) and a pulley (1222), respectively (such as the tenth and tenth A figure may also be a one-way clutch (121) with a sprocket on the outer edge, and the shape of the unidirectional driving element (12) is not limited to a circular shape, and may be elliptical or other non-circular shape in the chain. A guard ring (123) is provided outside the gear (122).

The flexible link (22) is wound around the one-way driving element (12), one end It is pivotally connected to the handle (21), which may be a flexible tension transmitting element such as a chain, a belt (223), a cable (222), a flexible belt (such as the first figure, the tenth figure and the eleventh figure). One or more pivot holes (213) provided on the handle (21), one end of the flexible link (22) is pivotally connected to the pivot hole (213), or may be separately assembled The pivot hole (213) and the locking frame (214) on the handle (21) are designed, for example, at the lower edge of each handle (21), and a plurality of independent pivot holes (213) can be combined. A pivoting member and a locking frame (not shown) for pivotally connecting one end of the flexible connecting rod (22).

The tensioning device keeps the flexible link (22) in tension and may be connected A tension sprocket (23), a tension cable (231), a tension pulley (232), an idler or an idler gear with a spring (24) pulling force of a connecting member (241), and an outer edge crimping or a sprocket On the flexible link (22), the flexible link (22) is kept in tension (as shown in the first, tenth and eleventh figures) or as a tension spring (24). One end is connected to the other end of the flexible link (22), and the other end is pivotally connected to the bicycle (1) or similar human-powered mechanical frame.

As can be seen from the above, this creation is a two-stage transmission that will step on a traditional bicycle. The handle (21) is separated from the drive shaft (111) of the motive chain gear (13), and the pedal pivot (17) is lowered to form a reciprocating handle (21) that is separated and independently operated on the left and right sides, and the left and right side handles (21) Each of the unidirectional driving elements (12) provided on the original drive shaft (111) of the bicycle (1) is driven by a flexible link (22) connected to the left and right side handles (21), and is The driving element (12) drives the motive chain gear (13), and then the rear moving wheel (16) drives the rear wheel (16). When riding, both feet are stepped back and forth in the reciprocating manner (21), the foot is down When the pedal is connected, the one-way clutch (121) is connected to the motive chain gear (13), and when the foot is lifted, the handle (21) is pulled up by the spring (24), and the bicycle can be driven by two legs or separately to drive the bicycle ( 1), since the reciprocating pedaling mechanism (2) drives the original motive gear (13) of the bicycle (1) first, and then drives the rear wheel (16) by the motive chain gear (13), from the original motive chain The mechanism after the gear (13) has not changed, so the creation mechanism does not affect the shifting device and function of the conventional bicycle at all, and allows the user to shift the speed according to the road condition.

Please refer to the fifth figure, connecting the handle (21) and the one-way drive unit. The flexible connecting rod (22) of the piece (12) is fixed at one end of a pivot hole (213) provided on the handle (21), and is referred to herein as a fulcrum (D) of the flexible link (22). The other end of the flexible connecting rod (22) bypasses the one-way driving element (12) provided on the driving shaft (111) of the motive chain gear (13), and the flexible connecting rod (22) is coupled to the one-way driving element. (12) When the foot applies a force to the handle (21), the force is transmitted to the one-way driving element (12) through the handle (21) and the flexible link (22), and the one-way driving element (12) The torque is generated, and the one-way driving component (12) transmits the torque to the pivoting drive shaft (111). The torque (T) output by the one-way driving component (12) is determined by the foot-to-handle (21). The force applied (F1), the force applied by the foot (F1) on the urging arm (A1) of the handle (21) pivot (17) (ie, the foot force line to the handle (21) Pivot (17) normal distance of point C), flexible link (22) tension to the handle (21) pivot (17) of the force arm (A2) (ie flexible link (22) The direction line to the normal distance of the handle (21) pivot (17) point C), and the pitch radius (R) of the primary gear (13) of the one-way clutch (121), as in Equation 1.

T=F1 ^* (A1/A2) ^* R (Equation 1)

In Equation 1, the pitch radius (R) of the unidirectional driving element (12) is constant. If the force applied to the foot (F1) is also constant, the torque (T) output by the one-way driving element (12) is completely determined by the handle (21) of the handle (21) and the flexible link (22). ) The ratio of the force arm (A2).

As shown in the fifth figure, when the handle (21) is rotated, the handle (21) is biased. The arm (A1) is maximum when the angle between the force application direction (AB) of the foot and the handle (21) (BC) is 90 degrees, and the flexible link (22) is applied to the flexible link (A2). (22) (DE) and the flexible link (22) are disposed on the handle (21) at a pivot point (D) of one of the pivot holes (213) to the handle (21) pivot (17) ( C) The connection (CD) is the largest when the angle is 90 degrees. If the angle between CD and BC is called the phase angle, the phase angle is about 35 degrees, and both the force-applying arms A1 and A2 can be maximized at the same time. This value is related to the radius of the pitch of the primary gear (13) of the one-way clutch (121) (FE), the primary gear of the one-way clutch (121) (13) and the pivot of the handle (21) (17). The position (FC), the length of the BC and the CD, and the position of the rotation center A of the foot are determined.

Referring again to Figure 6, the normalized handle (21) urging arm (A1) When the curve and the phase angle are 35 degrees, the flexible link (22) force arm (A2) curve almost completely overlaps. In other words, if the force of the foot is constant, when the phase angle is 35 degrees, Arms A1 and A2 The ratio is hardly changed with the rotation of the handle (21), so the torque output generated by the force of the foot is almost constant, as shown in the "35 deg" line shown in the seventh figure.

When the phase angle is reduced to 15 degrees, the normalized flexible link (22) is applied. The force arm (A2) curve shifts to the right. Conversely, when the phase angle increases, the flexible link (22) force arm curve shifts to the left, and the arm (A1) is applied by the handle (21). The intersection point of the connecting rod (22) urging arm (A2) curve is to the left, and as the angle of rotation of the shank (21) is reduced, the urging arm (21) of the shank (21) is increasingly larger than the flexible connecting rod (22). ) The force arm (A2), that is, the ratio of A1 and A2 increases, and vice versa, from the intersection point to the right, as the angle of rotation of the handle (21) increases, the handle (21) of the handle (21) becomes smaller and smaller. The flexible link (22) urging arm (A2), that is, the ratio of A1 and A2 is reduced. Therefore, if the urging force of the shank (21) is constant, the torque from the intersection to the left is increased, and the intersection is increased. To the right, the output torque is getting smaller and smaller, and the magnitude of the increase or decrease in torque is positively related to the degree of decrease or increase in phase angle.

Using the above principle, as long as the phase angle is adjusted, the handle can be used (2 1) When rotating, the degree of bending when the foot is stepped on the handle (21), that is, the position of the handle (21) changes, so that the output torque is getting bigger or smaller from top to bottom, the seventh figure It is assumed that the applied force of the foot on the handle (21) is 70kg, and the phase angle is reduced by 35 degrees from 5 degrees to 10 degrees each time. The torque can be observed from the figure, and the handle is taken (21). In the high position, the smaller the phase angle, the higher the degree of torque increase. Conversely, when the handle (21) is low, the phase angle is smaller, and the degree of torque reduction is more. When the handle (21) is at a high position, the torque is reduced. The rotation angle of the shank (21) changes faster, and the more the shank (21) goes down, the more the torque changes with the rotation angle of the shank (21) and becomes more linear (as shown in the ninth figure).

If the phase angle is reduced, the flexible link (22) is changed to the handle (2). 1) One of the pivot holes (213) is provided to increase the distance between the fulcrum (D) of the flexible link (22) and the pivot (17) of the handle (21), so that the handle (21) is at the highest position. (The torque output when the handle (21) is rotated at 0 degrees) does not change, and the result is as shown in the eighth figure, because the fulcrum (D) of the flexible link (22) is increased to the pivot of the handle (21) ( 17) The distance will increase the speed. If the speed is reduced by the original shifting mechanism of the bicycle, and the torque of the output can be increased, the phase angle can be adjusted, so that the handle (21) is light and labor-saving at the high position, that is, the foot The more bending, the more labor-saving, the lower the foot, the more the foot is fully output, that is, the more the foot is stretched out, the greater the force is applied, and the amplitude of the phase angle adjustment can be determined according to the needs of the road when riding, for example, when going uphill The steeper the slope, the smaller the phase angle should be to reduce the load on the foot.

Finally, please refer to the twelfth and thirteenth figures, the one-way driving element of this creation. The member (12) includes a set of clutch discs (1214), a plurality of rollers (1215) pivotally mounted on the set of clutch discs (1214), and a driving member (1211), and the components are combined and assembled on the sprocket (122), wherein the driving member (1211) is combined with the sprocket (122) set to form a synchronous driving state, and the driving member (1211) is provided with a plurality of rollers for the aforementioned ( 1215) The slanted space passing through has a reclining surface (1212), and the inclined surface (1212) of the inclined space is larger on one side and tapered toward one side, and when the pedal handle (21) is stepped on the flexible link ( 22) When the driven sprocket (122) and the driving member (1211) are rotated, at this time, the rollers (1215) enter the narrower portion of the inclined surface (1212) of the inclined space of the driving member (1211), and the driving is clamped. The shaft (111) causes the drive shaft (111) to drive the motive gear (13) to rotate, and to drive the bicycle (1) rear wheel (16) for purposes (as shown in Fig. 14), and when the bicycle ( 1) pushing backward to cause the driving gear (13) to drive the driving shaft (111) to rotate backward to drive the driving member (1211), The roller (1215) and the clutch disc (1214) are rotated backward, and when the blocking portion (12141) of the clutch disc (1214) touches the blocking piece (1216) provided on the bracket (11) of the bicycle (1), the rotation stops. And when the roller (1215) is pushed to the wider inclined surface (1212) of the inclined space, the roller (1215) no longer clamps the drive shaft (111), and the drive shaft (111) can be Rotate backwards with the original moving gear (13) (as shown in Figures 15 and 16).

In summary, this creation provides the ability to change the pedal force with the position of the pedal. The ratio of the output torque makes the pedal higher and more labor-saving, and it can use the effect of the bicycle drive mechanism of the common bicycle shifting gear which is common in bicycles. It is a novelty, progress and creation for industrial application. In accordance with the requirements for the granting of new patents, the patent application is filed according to law, and the review committee of the member of the committee can review it in detail, and the patent for this case will be granted as soon as possible.

The above is only the preferred embodiment of the present invention. When it is not possible to limit the scope of this creation, the equivalent changes and modifications made by the patent application scope of this creation should still belong to this creation patent. Within the scope of coverage.

(1) ‧‧‧Bicycles

(11) ‧‧‧ bracket

(111)‧‧‧ drive shaft

(12)‧‧‧One-way drive components

(121)‧‧‧One-way clutch

(13) ‧ ‧ original chain gear

(14)‧‧‧Chales

(15)‧‧‧ Driven chain gears

(16) ‧‧‧ Rear wheel

(17) ‧‧‧ pivot

(2) ‧‧‧ pedaling mechanism

(21)‧‧‧

(213)‧‧‧Pivot hole

(212)‧‧‧ pedal

(22)‧‧‧Flexible connecting rod

(23)‧‧‧ Pull chain gear

(24) ‧ ‧ spring

Claims (14)

An ergonomic driving device comprising a bicycle bracket, a front wheel, a rear drive, a motive chain gear, a drive shaft, a chain and a driven chain gear, the main feature of which is that the main device is a drive shaft of a bicycle original chain gear Each of the two sides is provided with a corresponding and independent pedaling mechanism, and each stepping mechanism comprises a one-way driving component, a flexible connecting rod and a pedaling handle, wherein the one-way driving component is disposed on a driving shaft of the bicycle motive chain gear Up, the one-way driving component is only unidirectionally driven to rotate the driving shaft of the bicycle sprocket gear, and one end of the shank is pivotally connected to the lower position of the driving shaft of the bicycle bracket, and one or more ones are provided at the lower edge of the shank a flexible connecting rod is sleeved on the one-way driving component, one end of the flexible connecting rod is pivotally connected to the pivoting hole provided at the lower edge of the handle, and the other end of the flexible connecting rod is pivoted Positioned on the bicycle bracket and connected with a force device to keep the flexible link in tension, and pull the handle back by the flexible link pulled back by the spring pull when the handle is not stepped on To the highest position To facilitate the pedaling; to change the position of the connecting point of the flexible connecting rod with respect to the pivot hole provided at the lower edge of the handle, so that the force applied by the foot to the pedal is transmitted to the driving shaft through the flexible link. The ratio of the force to the generated driving torque will change due to the change of the pedal position, and the pedal can be changed by changing the position of the connecting point of the flexible connecting rod with respect to the pivot hole provided at the lower edge of the handle. The higher the position, the more labor-saving, the pedal can be from high to low, the ratio of the torque to the force is constant, or can be smaller or larger, and the human leg is applied to the handle And the efficiency of the pedal drive to drive the drive mechanism to achieve the best state. An ergonomic driving device according to claim 1, wherein the one-way driving component is a ratchet. An ergonomic driving device according to claim 1, wherein the one-way driving component is a combination of a one-way clutch and a chain gear. An ergonomic driving device according to claim 1, wherein the shape of the unidirectional driving member is not limited to a circular shape, and may be an elliptical shape or other non-circular shape. An ergonomic driving device according to claim 1, wherein the flexible connecting rod is a chain. An ergonomic driving device as described in claim 1, wherein the flexible connecting rod is a belt. An ergonomic driving device according to claim 1, wherein the flexible connecting rod is a cable. An ergonomic driving device according to claim 1, wherein at the lower edge of each of the handles, a plurality of pivoting holes for pivotally connecting one end of the flexible connecting rod can be combined. An ergonomic driving device according to claim 1, wherein the tensioning device can be a spring, one end of which is connected to one end of the flexible connecting rod, and the other end of which is pivotally connected to a bicycle or the like. On the frame. An ergonomic driving device according to claim 1, wherein the tension device is a tension wheel that is subjected to a spring pulling force. An ergonomic driving device according to claim 10, wherein the tension wheel train is a sprocket. An ergonomic driving device according to claim 10, wherein the tension wheel train is a cable pulley. An ergonomic driving device as described in claim 10, wherein The tension wheel train is a pulley. An ergonomic driving device according to the first aspect of the invention, wherein the unidirectional driving component comprises a set of clutch discs, a plurality of rollers pivoted on the set of clutch discs, and a driving member, the member After being assembled, the driving component is disposed in a sprocket gear, wherein the driving component is combined with the sprocket and the gear gear set to form a synchronous driving state, and the driving component is provided with a plurality of oblique space for the roller to pass through The inclined surface of the inclined space is larger on one side and tapered toward one side. When the treading step causes the flexible link to drive the sprocket and the driving member to rotate, the rollers enter the inclined surface of the driving member at this time. The oblique pushing surface of the space is narrow, and the driving shaft is clamped, so that the driving shaft drives the motive gear to rotate, and the bicycle rear wheel is driven, and when the bicycle is pushed backward, the motive gear drives the driving shaft and then rotates to drive. The piece, the roller and the clutch disc rotate backward, and when the stop portion of the clutch disc touches the flap provided on the bicycle bracket to stop rotating, and the roller is pushed to a wider angle of the inclined surface of the inclined space, Then the roller is no longer clamped Drive the shaft so that the drive shaft can be rotated backwards with the original gear.