TWM450539U - Effort-saving bicycle pedaling device - Google Patents

Description

Labor-saving bicycle pedaling device

The present invention refers to a bicycle pedaling device, and more particularly to a bicycle pedaling device whose arm length can be adjusted when a user applies a force to a foot pedal.

The crank of the conventional bicycle is a fixed length rod-shaped member for connecting the foot pedal and the mandrel of the bicycle. The bicycle is operated by the user stepping on the foot pedal, and the foot pedal is The center performs a circular motion with a radius of the length of the crank and drives the bicycle driving device such as a toothed disc, a chain, and the like to advance the bicycle. Such a stepping device cannot extend the crank when the pedal is turned to the position where the force is required to increase the length of the arm, so that the effect of labor saving cannot be achieved, and it is a pedaling device that is laborious and easily causes fatigue of the user.

The invention patent No. I348983 discloses a retractable treading crank comprising a telescopic pull member, a movable crank combined with a pedal, a guide frame for receiving the telescopic pull member and matching the movable crank structure, and a guide frame The outer guide frame and the movable crank are provided with a plurality of guide frames, guide rods and hook portions, and the components are assembled together so that the telescopic pull members can be elongated or shortened within a limited range, thereby The pedaling structure that changes the distance between the stepping pedal connected to the movable crank and the bicycle mandrel by the pedaling force, and changes the length of the crank by the riding habit of the user and the road condition. However, the structure still has to be changed by the user's force to change the length of the crank, and the telescopic puller has a problem of elastic fatigue after long-term use.

Moreover, the movement path of the bicycle pedal is a circular motion, which does not conform to the movement path of the human body when the walking or running is approximately elliptical, and the long-term use will cause damage to the human joint.

The purpose of the present invention is to solve the problem that the conventional bicycle crank can not properly adjust the length of the urging arm with the pedals to different positions, resulting in a problem that the user has to ride hard and is prone to fatigue.

The secondary purpose of this creation is to improve the movement path of the conventional bicycle pedals to a circular motion, which does not conform to the movement path of the human body when walking or running, resulting in joint wear and injury.

In order to achieve the above object, the present invention provides a labor-saving bicycle pedaling device comprising a frame portion, a linkage rod portion and a tread portion. The frame portion includes a rotating mandrel disposed in the frame portion, and at least one fixed gear disposed through the rotating mandrel, the rotating mandrel including at least one first connecting end. The connecting rod portion includes a guiding gear pivoted on the connecting rod portion and engaging the fixed gear, and a driving member of the guiding gear is disposed at one end, and is disposed at the other end of the driving member and transmitted through the driving The component interlocks with the linking gear of the guiding gear, and a second connecting end pivotally disposed on the first connecting end to cause the linking lever portion to perform a first rotation stroke with respect to the frame portion around the rotating mandrel. The stepping portion includes a driving rod fixed to the linking gear and performing a second rotation stroke with respect to the linkage rod portion around the linkage gear, and a foot pedal pivotally mounted on the driving rod, the pedal pedal The driving gear is driven by the user to apply the second rotating stroke corresponding to the interlocking lever portion, and the guiding gear of the interlocking lever portion is engaged with the fixed gear of the frame portion to drive the interlocking lever portion. The first rotation stroke.

In an embodiment of the present invention, the interlocking rod portion includes a toothed disc that performs the first rotation stroke with respect to the frame portion around the rotating mandrel to drive the bicycle forward.

In an embodiment of the present invention, the interlocking rod portion further includes a plurality of arms, the toothed disc includes a first positioning portion, and the arm includes at least one corresponding to the first positioning portion to fix the toothed disc a second positioning portion on the interlocking rod portion.

In an embodiment of the present invention, the second connecting end includes a first connecting hole through which the first connecting end is passed and is engaged to be fixed to the rotating mandrel.

In an embodiment of the present invention, the interlocking rod portion further includes a second connecting hole pivotally connected to the driving rod, and the linking gear further includes a connecting the connecting gear to the second connecting hole and fixing Linking the gear shaft to the drive rod.

In an embodiment of the present invention, the linking rod portion further includes a fixing frame carrying the guiding gear, the fixing frame includes at least one pivot hole, and the guiding gear includes a pivoting the guiding gear on the pivot Guide pin shaft on the hole.

In an embodiment of the present invention, the driving rod includes a locking hole pivotally connected to the foot pedal.

In an embodiment of the present invention, the driving element is a belt.

In another embodiment of the present invention, the driving element is a chain.

The labor-saving bicycle pedaling device of the present invention is that the pedal is driven by the user to apply a pedaling force on the pedal to drive the driving rod to perform a second rotation stroke centering on the interlocking gear, and the guiding gear is engaged by the interlocking gear. Fixing the gear and making the linkage rod portion perform a first rotation stroke centering on the fixed gear. When the operation mechanism causes the foot pedal to turn to the position where the force is required, the length of the force application arm can fully expand the drive rod relative to the linkage rod portion. The length of the arm is increased, so that the user can apply a small force to the pedal, so that the bicycle can run forward and achieve labor-saving purposes.

Furthermore, the interlocking rod portion of the creation and the driving rod are linked to each other through the linkage gear and the guiding gear, so that the movement path of the pedal pedal can be an elliptical shape, compared with the circular motion path of the conventional foot pedal. The elliptical trajectory is more in line with the movement pattern of the lower limbs that the user walks or runs, so the user is less likely to suffer from joint wear and tear due to long-term riding.

The preferred embodiment and technical content of the present creation are as follows:

Please refer to FIG. 1 for a three-dimensional structure diagram of an embodiment of the labor-saving bicycle pedaling device. As shown in the figure, the labor-saving bicycle pedaling device of the present invention comprises a frame portion 1, a linkage rod portion 2 and a tread portion 3. . Please refer to FIG. 2 for a structural assembly diagram of an embodiment of the labor-saving bicycle pedaling device. The frame portion 1 includes a rotating mandrel 11 disposed in the frame portion 1 and at least one of The fixed gear 12 of the rotating mandrel 11 includes at least one first connecting end 13 . The connecting rod portion 2 includes a guiding gear 21 pivotally coupled to the connecting rod portion 2 and engaging the fixed gear 12, and a driving member 22 having the guiding gear 21 at one end thereof is disposed on the driving member 22 The other end is connected to the interlocking gear 23 of the guiding gear 21 through the driving member 22, and is pivotally disposed on the first connecting end 13 such that the interlocking rod portion 2 is centered on the rotating mandrel 11 with respect to the frame. The portion 1 performs a second connecting end 24 of a first rotational stroke, wherein the driving element 22 that pulls the interlocking gear 23 and the guiding gear 21 to operate is a belt or a chain. The stepping portion 3 includes a driving rod 31 fixed to the interlocking gear 23 and performing a second rotation stroke with respect to the interlocking lever portion 2 around the interlocking gear 23, and a pedal pivoted to the driving rod 31. a plate 32, the pedal 32 is driven by the user to push the driving rod 31 to perform the second rotation stroke corresponding to the linkage rod portion 2, and the guiding gear 21 of the linkage rod portion 2 is engaged with the vehicle The fixed gear 12 of the frame portion 1 drives the interlocking rod portion 2 to perform the first rotation stroke.

Please refer to FIG. 3 for a partial structural exploded view of an embodiment of the labor-saving bicycle pedaling device and FIG. 6 is a schematic perspective view of another embodiment of the creation labor-saving bicycle pedaling device, as shown in FIG. The rod portion 2 includes a toothed disc 25 and a plurality of arms 26 including a first positioning portion 251, the arm portion 26 including at least one corresponding to the first positioning portion 251 to the toothed disc 25 a second positioning portion 261 fixed to the interlocking rod portion 2. Therefore, when the interlocking rod portion 2 performs the first rotation stroke with respect to the frame portion 1 around the rotating mandrel 11, the toothed disc 25 is also rotated to drive the bicycle transmission device connected to the chainring 25 such as a belt drive. The bicycle is advanced, and the driving element 22 can also be a chain as shown in FIG.

Please refer to FIG. 1 and FIG. 2 , wherein the second connecting end 24 includes a first connection for the first connecting end 13 to be inserted and fastened to be fixed to the rotating mandrel 11 . Hole 241. The interlocking rod portion 2 further includes a second connecting hole 27 pivotally connected to the driving rod 31. The interlocking gear 23 further includes a connecting the connecting gear 23 to the second connecting hole 27 and is fixed thereto. The drive rod 31 is linked to the gear shaft 231. The connecting rod portion 2 further includes a fixing frame 28 for carrying the guiding gear 21. The fixing frame 28 further includes at least one pivot hole 281. The guiding gear 21 further includes a pivoting guide gear 21 thereon. A guiding gear shaft 211 is pivoted on the hole 281. The driving rod 31 includes a locking hole 311 pivotally connected to the footboard 32.

Please refer to FIG. 4, which is a top view of the structure of the creation of the labor-saving bicycle pedaling device. The linkage rod 2 and the driving rod 31 are in an unfolded state on one side of the frame portion 1. At this time, the pedal is The distance between the plate 32 and the rotating mandrel 11 is long. Therefore, when the user applies a pedaling force to the footboard 32, since the arm is long, it is only required to be applied with respect to the length of the arm. The pedaling device of the length of the linkage rod 2 has a small force on the footboard 32 to give the bicycle the same torque to drive the bicycle to advance at the same speed; the other side of the frame portion 1 is the driving rod 31 and the linkage rod In the folded state of the portion 2, the user does not need to apply a force on the pedal on the side. Therefore, the driving lever 31 is folded on one side of the interlocking lever portion 2, except that the pedal can be used. In addition to the smaller range of the motion path of the board 32, it is also possible to prevent the foot board 32 from being too close to the ground when the foot pedal 32 and the drive rod 31 are rotated to the lower edge of the circular motion thereof. Causes the user's foot to rub against the ground and is injured.

For a more detailed description, please refer to the following diagrams (Fig. 5-1) to Fig. 5-3 for the actuation diagrams (1) to (3) of the embodiment of the creation of the labor-saving bicycle pedaling device, for the user to the frame portion 1 The pedal 32 on one side is applied with a pedaling force to drive the driving rod 31 to perform a second rotation stroke centering on the linkage gear 23, and the guiding gear 21 is engaged with the fixed gear 12 to make the linkage rod 2 a first rotation stroke is performed around the fixed gear 12, and when the linkage rod portion 2 rotates, the drive rod 31 performs a second rotation stroke with respect to the linkage rod portion 2 at an equal rotation angle, so when the linkage rod portion 2 When the fixed gear 12 is rotated counterclockwise, the driving rod 31 also rotates counterclockwise around the interlocking gear 23, and FIG. 5-1 is the opposite force of the interlocking rod portion 2 and the driving rod 31. The driving lever 31 on the side of the frame portion 1 and the interlocking lever portion 2 are fully deployed, so that the distance from the footboard 32 to the rotating mandrel 11, that is, the length of the arm of the pedaling force is the longest. Therefore, the purpose of labor saving is achieved. At this time, the interlocking rod portion 2 and the driving rod 31 are at an angle of 180°. The angle between the rod portion 2 and the horizontal direction is 45 degrees upward; "Fig. 5-2" is the counter-rotational rod portion 2 rotating counterclockwise 45° around the fixed gear 12 after the application of force, the direction is horizontal, and the driving The lever 31 is also rotated counterclockwise by 45° around the interlocking gear 23, so that the angle between the driving lever 31 and the interlocking lever portion 2 is reduced to 135°, that is, the driving lever 31 gradually faces the side of the interlocking lever portion 2. The folding lever 2 is rotated counterclockwise by 90° around the fixed gear 12, and the driving lever 31 is also rotated counterclockwise by 90° around the interlocking gear 23; At this time, the angle between the driving rod 31 and the interlocking rod portion 2 has been reduced to 90°, so when the interlocking rod portion 2 continues to rotate to the direction of the vertical ground, the driving rod 31 is also opposite to the interlocking rod portion. The rotation causes the foot pedal 32 to be positioned higher than the interlocking gear 23, so that there is no problem that the foot pedal 32 is too close to the ground when it is rotated to the lower edge of the circular motion, which is prone to accidents.

When the driving pedal connected to the pedal is used to perform the second rotation stroke centering on the interlocking gear, the driving pedal and the guiding gear drive the interlocking lever portion to perform the first rotation stroke around the fixed gear. When the pedal is turned to the position where the force is applied, the length of the urging arm can be lengthened in time to make it easier and more comfortable to ride. Moreover, the movement path of the foot pedal of the creation of the labor-saving bicycle pedaling device The shape of the ellipse is close to the movement pattern of the lower limb when the human body walks or runs, which can reduce the degree of joint wear caused by the user during riding. This creation is highly progressive and meets the requirements for applying for a new type of patent. It is required to apply in accordance with the law, and the Bureau will grant patents as soon as possible.

The present invention has been described in detail above, but the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited. That is, the equivalent changes and modifications made in accordance with the scope of this creation application shall remain within the scope of the patent of this creation.

1‧‧‧ Frame Department

11‧‧‧Rotating mandrel

12‧‧‧Fixed gears

13‧‧‧First connection

2‧‧‧ linkage rod

21‧‧‧Guide gear

211‧‧‧Guide gear shaft

22‧‧‧Drive components

23‧‧‧ linkage gear

231‧‧‧ linkage gear shaft

24‧‧‧Second terminal

241‧‧‧First connection hole

25‧‧‧ toothed disc

251‧‧‧First Positioning Department

26‧‧‧ Arms

261‧‧‧Second Positioning Department

27‧‧‧Second connection hole

28‧‧‧Fixed frame

281‧‧‧ pivot hole

3‧‧‧Treading

31‧‧‧ drive rod

311‧‧‧Lock hole

32‧‧‧ pedals

FIG. 1 is a perspective structural view of an embodiment of the labor-saving bicycle pedaling device of the present invention.

FIG. 2 is a schematic structural view of an embodiment of the labor-saving bicycle pedaling device of the present invention.

FIG. 3 is a partial structural exploded view of an embodiment of the labor-saving bicycle pedaling device of the present invention.

Fig. 4 is a top plan view showing the structure of an embodiment of the labor-saving bicycle pedaling device.

Figure 5-1 is an actuating diagram (1) of an embodiment of the labor-saving bicycle pedaling device.

Fig. 5-2 is an actuating diagram (2) of an embodiment of the labor-saving bicycle pedaling device of the present invention.

Figure 5-3 is an actuating diagram (3) of an embodiment of the labor-saving bicycle pedaling device of the present invention.

FIG. 6 is a perspective structural view showing another embodiment of the labor-saving bicycle pedaling device of the present invention.

1‧‧‧ Frame Department

11‧‧‧Rotating mandrel

12‧‧‧Fixed gears

13‧‧‧First connection

2‧‧‧ linkage rod

21‧‧‧Guide gear

211‧‧‧Guide gear shaft

23‧‧‧ linkage gear

231‧‧‧ linkage gear shaft

25‧‧‧ toothed disc

281‧‧‧ pivot hole

3‧‧‧Treading

31‧‧‧ drive rod

311‧‧‧Lock hole

32‧‧‧ pedals

Claims (10)

An effort-saving bicycle pedaling device, including:
a frame portion includes a rotating mandrel disposed in the frame portion, and at least one fixed gear disposed on the rotating mandrel, the rotating mandrel including at least one first connecting end;
a connecting rod portion includes a guiding gear pivoted on the connecting rod portion and engaging the fixed gear, and a driving member of the guiding gear is disposed at one end, and is disposed at the other end of the driving member and transmits the The driving component is coupled to the linking gear of the guiding gear, and the second connecting device is pivotally disposed on the first connecting end, and the connecting rod portion performs a first rotation stroke with respect to the frame portion around the rotating core shaft And a stepping portion, comprising: a driving rod fixed to the interlocking gear and performing a second rotating stroke with respect to the linking rod portion around the interlocking gear, and a foot pedal pivoted on the driving rod, The pedal is driven by the user to apply the driving force to the driving rod to perform the second rotation stroke, and the guiding gear of the linkage rod is engaged with the fixed gear of the frame portion to drive the pedal The interlocking rod portion performs the first rotation stroke. The labor-saving bicycle pedaling device according to claim 1, wherein the interlocking lever portion includes a toothed disc that performs the first rotation stroke with respect to the frame portion around the rotating mandrel to drive the bicycle forward. The labor-saving bicycle pedaling device of claim 2, wherein the linkage lever portion further comprises a plurality of arms, the toothed disc includes a first positioning portion, the arm includes at least one and the first positioning The portion corresponds to the second positioning portion that fixes the toothed disc to the interlocking rod portion. The labor-saving bicycle pedaling device of claim 1, wherein the second connecting end comprises a first connecting hole for the first connecting end to be inserted and fixed to be fixed to the rotating mandrel. The labor-saving bicycle pedaling device according to the first aspect of the invention, wherein the interlocking lever portion further includes a second connecting hole pivotally connected to the driving rod, the interlocking gear further comprising a connecting the linking gear The second connecting hole is fixed to the interlocking gear shaft of the driving rod. The labor-saving bicycle pedaling device according to claim 1, wherein the linkage rod portion further comprises a fixing frame carrying the guiding gear. The power-saving bicycle pedaling device of claim 6, wherein the fixing frame further comprises at least one pivoting hole, the guiding gear further comprising a guiding mechanism for pivoting the guiding gear on the pivoting hole Gear shaft. The labor-saving bicycle pedaling device according to claim 1, wherein the driving rod comprises a locking hole pivotally connected to the foot pedal. The labor-saving bicycle pedaling device according to claim 1, wherein the driving component is a belt. The labor-saving bicycle pedaling device according to claim 1, wherein the driving component is a chain.