WO2010012125A1

WO2010012125A1 - A bi-directional pedal drive structure

Info

Publication number: WO2010012125A1
Application number: PCT/CN2008/001397
Authority: WO
Inventors: 周明福
Original assignee: 金仪国际科技股份有限公司
Priority date: 2008-07-31
Filing date: 2008-07-31
Publication date: 2010-02-04

Abstract

A bi-directional pedal drive structure(A), comprises a pedal assembly (10), a driving wheel (20), a gear assembly (30), an uni-directional bearing assembly (40) and a transmission unit (50). With the properly setting of the uni-directional bearing assembly (40), the driving wheel (20) and the gear assembly (30), the user can change the pedaling direction during riding without changing the rotation direction of the driving wheel (20), and a flywheel assembly (70) which connected to the driving wheel (20) can maintain the same rotational direction with the driving wheel (20).

Description

Two-way pedaling drive structure

The present invention relates to a two-way stepping drive structure, and more particularly to a stepping drive structure that can be stepped on and reversed. Background technique

Due to the busy work of today's people, the pace of life is often faster than that of people in remote towns. Therefore, the focus of their lives is on the work, so that even if there is a holiday, leisure time can often only be nested. Resting at home, over time, once the body's body does not have the proper amount of exercise to make the physiology function active, it will be accompanied by a mental burden, which will lead to job burnout and poor efficiency.

Therefore, in order to meet the needs of people who are busy and lazy, there are a variety of sports and fitness equipment (such as exercise bikes) available on the market. It is known that whether it is a bicycle or a bicycle, it can only be used as a positive bone. Muscle exercise, the single-direction pedaling exercise, will inevitably feel monotonous and uninspired after a long time of use, and this positive stepping structure often ignores the importance of reverse pedaling, and the benefits of reverse pedaling can be good. Because the muscles in the parts that are moved by the reverse pedaling are different, the effect is also very different from that of the positive pedaling. For people who work or study at the desk, reverse trampling can effectively eliminate fatigue and The pain of back pain.

Therefore, in response to the above problems, the manufacturer has developed an exercise bicycle that can perform forward and reverse movements. However, it is known that such forward and reverse movements can be realized in a variety of different structural compositions, and during the pedaling process. , due to the action of the inertia wheel, the immediate steering pedaling cannot be achieved. If the steering is stepped on, the motion of the foot will be injured, which may cause dangerous safety concerns.

Therefore, in view of the problems existing in the above-mentioned known structures, how to develop an innovative structure with more ideal and practicality is what the users are looking forward to, and it is also the goal and direction that the relevant industry must strive to develop breakthroughs.

In view of this, the inventor has been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation of the above objectives, the invention has finally become practical. Invention disclosure

The problem to be solved by the present invention is to provide a two-way pedaling driving structure for known existence The problem points are improved and broken.

In order to achieve the above object, the present invention mainly provides a two-way stepping driving structure, including a stepping group, which is composed of a pedal on the left and right sides, a crank and a connecting shaft; a gear set, which is composed of a driving gear and a driven gear, and a driving gear The device is disposed at a side of the connecting shaft and is engaged with the driven gear; the transmission group comprises a driving wheel, a driven wheel and a first transmission member connecting the driving main and passive wheels, and the driving wheel is driven by the transmission The shaft is connected to the driven gear of the gear set, and the driven wheel is disposed on the connecting shaft; the driving wheel is disposed at the other side of the connecting shaft, and a connecting shaft is convexly arranged on one side of the driving wheel. The one-way bearing set includes a first one-way bearing and a second one-way bearing, and the first one-way bearing is disposed on the driving wheel and the connecting shaft, so that the passive wheel of the transmission group can be connected to the connecting shaft portion; Between the rods, when the rotation direction of the connecting shaft is the same as that of the first one-way bearing, the driving wheel can be driven to rotate, and the second one-way bearing is disposed on the driving gear and the connecting shaft of the gear set Between the direction of rotation when the connecting shaft and the second one-way bearing are the same, drives the driving gear can be rotated, and the first one-way bearing and the second one-way bearing is arranged in the movement direction of guiding.

Through the unique design of the invention, the invention can make the user change the stepping direction freely when stepping on the pedal, without affecting the transmission of the driving wheel, so that the user can reach the two-way pedaling movement mode. Train the muscles in different parts of the leg, and also enjoy another kind of exercise and fitness, and the structure is simple, easy to maintain and practical. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a combined perspective view of the present invention;

2 is a schematic view of a forward stepping of the present invention;

Figure 3 is a schematic view showing the direction of rotation of the driving wheel of the present invention;

Figure 4 is a schematic view of the reverse stepping of the present invention;

Figure 5 is a schematic view of the gear set driving of Figure 4;

Figure 6 is a view of another preferred embodiment of the present invention;

Figure 7 is a view showing another embodiment of the first transmission member of the transmission set of the present invention;

Figure 8 is a diagram of an application embodiment of the present invention.

[Main component symbol description]

A two-way pedaling drive structure

10 stepping on the group 11 pedaling 12 crank 13 connecting shaft

20 drive wheel 201 connecting shaft

21 second transmission member

30 gear set 31 drive gear

32 passive gear

40 one-way bearing set 41 first one-way bearing

42 second one-way bearing

50 drive set 51 drive wheel

52 Passive wheel 53 First transmission member

531 chain 532 transmission gear

54 drive shaft

60 clutch control unit 61 drive shaft side

62 passive shaft side

70 flywheel set The best way to achieve the invention

Referring to Figures 1 to 5, there is shown a preferred embodiment of the two-way stepping drive structure of the present invention, but these embodiments are for illustrative purposes only and are not limited by this structure in the patent application. The two-way stepping driving structure A is assembled on a base (not shown), and includes:

The stepping group 10 is composed of a pedal 11 on the left and right sides, a crank 12 and a connecting shaft 13; the driving wheel 20 is disposed at the side of the connecting shaft 13 , wherein the crank 12 end is connected with the pedal 11 , and the other One end is set on the connecting shaft 13;

The gear set 30 is composed of a driving gear 31 and a driven gear 32 which are disposed on the connecting shaft 13 on the opposite side of the driving wheel 20 and are engaged with the driven gear 32.

The one-way bearing set 40 includes a first one-way bearing 41 and a second one-way bearing 42 disposed between the driving wheel 20 and the connecting shaft 13 to connect the shaft 13 When the rotation direction is the same as that of the first one-way bearing 41, the driving wheel 20 can be driven to rotate, and the second one-way bearing 42 is disposed between the driving gear 31 of the gear set 30 and the connecting shaft 13 to connect the shaft 13 When the rotation direction is the same as that of the second one-way bearing 42, the driving gear can be rotated, and the first and second one-way bearings 41, 42 are arranged in different guiding directions; The transmission set 50 includes a driving wheel 51, a driven wheel 52 and a first transmission member 53. The driving wheel 51 is coupled to the driven gear 32 of the gear set 30 via a transmission shaft 54 and the driving wheel 20 A connecting shaft portion 201 is disposed such that the driven wheel 52 of the transmission unit 50 can be coupled to the connecting shaft portion 201 to form the driving wheel 20 in the same dynamic relationship with the driven wheel 52. The main and passive wheels 51, 52 of the transmission set 50 may be a toothed disc structure, and the first transmission member 53 may be correspondingly configured as a chain 531 (such as FIG. 3) or a transmission gear 532 (such as FIG. 7). state. Moreover, the main and passive wheels 51, 52 of the transmission set 50 may also be a pulley structure, and the first transmission member 53 may be correspondingly configured as a belt (this component is omitted).

Wherein, the driving wheel 20 can be combined with a flywheel set 70 (suitable for a sports exercise bike) or a set of toothed discs (suitable for a general bicycle) through a second transmission member 21, the second transmission member 21 being a chain (also Belt).

Through the above structure and composition design, the use of the present invention for the exercise exercise vehicle is now described as follows:

As shown in FIGS. 1, 2, and 3, when the pedal 11 is stepped forward for the forward movement, the passage of the crank 12 can drive the connecting shaft 13 to rotate in the forward direction, and the first one-way bearing 41 is The guiding direction of the guiding action is the same as the rotating direction of the connecting shaft 13 (ie, the guiding direction of the first one-way bearing 41 is positive), so that the driving wheel 20 is driven to rotate in the forward direction, and when driving When the wheel 20 rotates, it is coupled with the connecting shaft portion 201 of the driving wheel 20 to be driven by the driven wheel 52, and is transmitted through the first transmission member 53, so that the driving wheel 51 and the driven wheel 52 have the same rotational direction (ie, the forward direction) The driven gear 32, which is in the coaxial position with the driving wheel 51, rotates in the same direction as the driving wheel 51 (ie, rotates in the forward direction), and the driving gear 31 meshed with the driven gear 32 rotates in the opposite direction. However, since the connecting shaft 13 is in the forward rotation direction at this time, and the second one-way bearing 42 is disposed between the driving gear 31 and the connecting shaft 13, the driving direction and the connecting shaft can be actuated. 13 has different directions of rotation (ie, The guiding direction of the two one-way bearing 42 is reversed, so that the second one-way bearing 42 is configured to be in a state of idling, that is, by the rotation of the driving wheel 20, and is further disposed through the driving wheel 20 The second transmission member 21 (which may be a chain or belt) will drive the flywheel assembly 70 to rotate in the forward direction.

As shown in FIGS. 4 and 5, when the reverse pedaling is performed in the middle of the forward pedaling rotational inertia, the crank 12 drives the connecting shaft 13 to rotate in the reverse direction, and thus is disposed on the driving wheel 20 and the connecting shaft 13 The first one-way bearing 41 between the two drives the driving direction to be different (that is, the guiding direction of the first one-way bearing 41 is positive), and the idle phenomenon is formed, and conversely, when the connecting shaft 13 is reversely rotated. Group The second one-way bearing 42 disposed between the driving gear 31 and the connecting shaft 13 will be guided by the reverse pedaling. At this time, when the second one-way bearing 42 and the connecting shaft 13 rotate in the same direction, The driving gear 31 can be driven to play a driving role. At this time, since the rotation direction of each part between the gear set and the transmission group is the same as the foregoing, the driving wheel 20 can be driven to rotate in the forward direction. The difference from the reverse pedaling is that: the first one-way bearing 41 is driven by the input side to drive the two-way pedal driving structure A to operate, and in the reverse pedaling, the input side is converted by the second one-way. The bearing 42 drives the two-way stepping driving structure A to be actuated. Therefore, regardless of the positive and reverse pedaling, the driving wheel 20 rotates in the forward direction, and the flywheel assembly 70 having the driving relationship with the driving wheel 20 rotates. The direction is also positive rotation, so that the exerciser can obtain different sports and fitness fun through the design of the invention during the pedaling exercise, and can also achieve the positive and negative pedaling motion. Practical training progress of different positions of the leg muscles. (Note: Generally, when the flywheel set 70 is configured to rotate, a continuous inertial rotation will be generated, that is, if the stepping group 10 stops stepping, it will also be subjected to the inertia rotation by the action of the flywheel set 70, so if the user When the stepping group 10 is suddenly reversed during the stepping on the pedal, at this time, since the flywheel group 70 is maintained in the inertia state of the forward rotation, a reaction force is generated on the user's foot, thereby causing injury; According to the present invention, the arrangement relationship between the gear set 30, the one-way bearing set 40 and the transmission group 50 can achieve the state in which the flywheel unit 70 is maintained in the forward rotation state even if the rotation direction of the tread group 10 is arbitrarily changed. .)

As shown in FIG. 6, in another preferred embodiment of the present invention, the driven gear 32 of the gear set 30 can be combined with a clutch control device 60 that includes a drive shaft side 61 and a passive The shaft side 62, and the clutch control device 60 can be controlled by a control rod (not shown), and when the driving shaft side 61 passes the control rod, the driving shaft side 61 and the passive shaft side 62 can be engaged with each other. The two-way pedaling action can be achieved. Conversely, if the master shaft side 61 is separated from the passive shaft side 62, only one direction of the pedaling motion can be performed. Therefore, the setting of the clutch control device 60 allows the user to freely select a single ticket. To step on or two-way pedaling, the function is selectively increased to enhance the fun of exercise and fitness.

It should be noted that the two-way pedaling driving structure of the present invention can be applied to a general indoor exercise bicycle or a bicycle crusted walking on a road surface (as shown in Fig. 8).

Efficacy description:

The fact that the efficacy of the present invention is enhanced is as follows:

The invention is made by the arrangement relationship between the drive wheel, the gear set, the transmission set and the one-way bearing set In the actual use, the two-way stepping driving structure can enable the user to pass the gear set and the transmission group and the second set on the driving gear end during the forward stepping of the inertial motion. The one-way bearing is arranged, and the driving direction of the driving wheel is the same as the driving wheel by the transmission conversion relationship between the components (that is, the rotation direction is positive rotation), and does not affect the transmission of the driving wheel. The flywheel set that constitutes a coupled transmission relationship with the drive wheels can also maintain forward rotation.

In view of the above, the present invention allows the flywheel set to rotate forward without the need to wait for the flywheel to stop after the flywheel is stopped by the setting of the first and second one-way bearings in different guiding directions, whether it is a positive step or a reverse stepping. The pedaling is reversed; and the user can also prevent the sports injury caused by the reverse stepping of the flywheel group under the inertial rotation; therefore, the invention not only has the advantages of simple structure, easy maintenance and practicality, but also allows the user to pass Positive and negative pedaling exercises to achieve the purpose of training muscles in different parts of the leg, as well as to increase the fun of exercise and fitness.

The invention may, of course, be embodied in a variety of other embodiments without departing from the spirit and scope of the invention. Changes and modifications are intended to be included within the scope of the appended claims. Industrial applicability

The invention can freely change the stepping direction when the user steps on the pedal without affecting the transmission of the driving wheel, so that the user can reach the muscles of different parts of the leg by the two-way pedaling movement, and can also obtain another Sports and fitness fun, simple structure, easy maintenance and practicality.

Claims

Claim

A two-way pedaling driving structure, comprising: a stepping group, a driving wheel, a gear set, a one-way bearing set, and a transmission group; and wherein:

The treading group is composed of a pedal on the left and right sides, a crank and a connecting shaft;

The gear set is composed of a driving gear and a driven gear, and the driving gear set is disposed at a side of the connecting shaft and is engaged with the driven gear;

The transmission set includes a driving wheel, a driven wheel and a first transmission member, and the driving wheel is connected to the driven gear of the gear set through a transmission shaft;

The driving wheel is disposed at the other side of the connecting shaft, and the driving wheel is provided with a connecting shaft portion, so that the driven wheel of the transmission group can be connected to the connecting shaft portion to form the driving wheel and the driven wheel. The one-way bearing set includes a first one-way bearing and a second one-way bearing. The first one-way bearing is disposed between the driving wheel and the connecting shaft to rotate the connecting shaft and the first When the one-way bearing is the same, the driving wheel can be driven to rotate, and the second one-way bearing is disposed between the driving gear of the gear set and the connecting shaft, so that when the connecting shaft rotates in the same direction as the second one-way bearing, The driving gear is driven to rotate, and the first one-way bearing and the second one-way bearing are configured in different guiding directions.

The two-way stepping drive structure according to claim 1, wherein the driven gear of the gear set is combined with a clutch control device including a drive shaft side and a passive shaft side.

3. The two-way stepping drive structure according to claim 1, wherein the drive wheel is spaced apart and can be configured with a flywheel set or a set of toothed discs, and the drive wheel and the flywheel set or the set of toothed discs can be passed again The second transmission member is coupled to drive.

The two-way stepping drive structure according to claim 3, wherein the second transmission member is a chain or a belt.

The two-way pedaling driving structure according to claim 1, wherein the main and passive wheels of the transmission group are a toothed disc structure, and the first transmission member is correspondingly configured as a chain or a transmission gear.