KR200438368Y1 - Human power driving apparatus used in bicycle or other machines - Google Patents

Abstract

The present invention belongs to the mechanical field, and provides a kind of manpower drive device used for bicycles or other machines. The drive includes a swing lever, a chain wheel, an intermediate pipe, a middle shaft and a guard plate. The middle shaft is fitted into the intermediate pipe and connected, and the chain wheel is fitted into the intermediate shaft and fixed. A feature of the present invention further includes a unidirectional mechanism fitted to the central shaft, wherein the swing lever is fixedly connected to the unidirectional mechanism, and a double spring is further installed between the swing lever and the guard plate. The drive device of the present invention is simple in structure, easy to use, high driving efficiency, and free to operate, so its use is wide.

Description

HUMAN POWER DRIVING APPARATUS USED IN BICYCLE OR OTHER MACHINES}

Field of technology

The present invention relates to a mechanical drive, and more particularly to a manpower drive used for bicycles or other machines.

Background

Bicycles, which are widely used at present, adopt a circumferential rotary driving method and are used for a long time because they are simple in structure and relatively reasonable in comparison with other structures in history. However, the drop in output near the top and bottom dead points is already recognized, and the partial speed perpendicular to the direction of the stepping force cannot help the drive, and the extra motion of the muscles and joints In addition, the distance to move horizontally in addition to the relatively large distance is disadvantageous to maintain a stable center of gravity.

Accordingly, a number of improvements have already been made, and the driving mechanism and the transmission mechanism of the lever-driven bicycle disclosed in Chinese patent 85106710 are driven to rotate the crank through the reciprocating oscillation of the pedal lever on which the pedal is installed. The rod is subjected to a pulling force. While the mechanism can solve some of the problems described above, the pedal rod speed distribution is initially slower and later in the main driving stage because the connecting rod receives the traction in the stepping stroke. The input efficiency is also not high because such a state and cooperation cannot be achieved. In addition, since the left and right pedals are interlocked, the force must be used while the two feet are circulating in order of one up and one down.

A type of pedal sitting posture disclosed in Chinese patent 88203251.8 is a pedal that moves the pedal lever when the user alternates the pedal with two feet, and the pedal lever drives the geared flywheel while moving the inner gear of the arc, thereby causing As the chain wheel is driven, the chain wheel is rotated through the chain. This requires multi-stage transmission, which leads to loss of work and therefore not high efficiency. Also, since the two pedals are interlocked, the two feet must use power, circulating in the order of one up and one down.

A traffic tool using a kind of pedal operation disclosed in the US patent US6173981, when the pedal lever is rotated to rotate the pedal lever, the pedal lever rotates to drive the rope, the rope pulls the chain, and the chain drives the small chain wheel. The small chainwheel rotates the large chainwheel while rotating the shaft, and furthermore, the rear wheel is driven through the chain, and the driving efficiency is not very high because of the multi-stage transmission. In addition, the pedal to the rear downwards to the force to cause inconvenience to the user, and also because the two pedals are interlocked, the two feet one by one in the order of down to use the force. In addition, the structure is complicated and manufacturing costs are high.

At present, most of the bicycles used by people with inferior limbs adopt the cylindrical driving method, and thus there are problems such as upper and lower dead centers and high driving efficiency.

The contents of the devise

The object of the present invention is to overcome the shortcomings of the prior art, to provide a driving device that is simple in structure, high in driving efficiency, and can be operated with only one side, which can be used for driving a bicycle or other machine. .

The technical means of the technical problem to be solved by the present invention is as follows.

A manpower drive for bicycles or other machines, comprising swing levers, chain wheels, intermediate pipes, intermediate shafts and guard plates, the intermediate shafts being fitted into the intermediate pipes, and the chain wheels fitted and fixed to the intermediate shafts. A feature of the present invention is that the unidirectional mechanism is inserted into the central shaft is further connected, the rocking lever is fixedly connected to the unidirectional mechanism, the double spring is further installed between the rocking lever and the guard plate.

According to the driving device of the present invention, its structure is simple, its use is wide, its driving efficiency is high, and its driving method is free and versatile.

Brief description of the drawings

1 is a front view of a driving apparatus according to a preferred embodiment of the present invention, one of which is removed from the guard plate, the other side of the guard plate is shown only a portion.

FIG. 2 is a plan view of the driving device of FIG. 1, in which only a part of the guard plates on both sides are shown.

FIG. 3 is a rear view of the unidirectional mechanism of the drive device of FIG. 1, with other components of the drive device removed. FIG.

FIG. 4 is a plan view of the lower position limiting mount of the driving device of FIG. 1, and other parts of the driving device are removed.

Concrete implementation method

1 and 2, as a kind of drive device according to a preferred embodiment of the present invention, two swing lever (1), two double spring (2), chain wheel (3), two unidirectional mechanism (4) ), A middle shaft 5, two guard plates 6, a lower positioning pedestal 7 and an intermediate pipe 8.

The intermediate pipe 8 is a straight pipe and is used to fix the bracket before and after the bicycle or to fix the bracket of other machines. The intermediate pipe 8 is installed between the one-way mechanism 4 and the chain wheel 3 of them.

The intermediate shaft 5 is fitted to the intermediate pipe 8 in a rotatable manner through the intermediate pipe 8, for example, by using the ball and the ball seat, the axial movement does not occur while the central axis rotates in the radial direction. Can be connected. One unidirectional mechanism 4 is fitted and connected to both ends of the middle shaft 5, respectively.

The chain wheel 3 is fixedly connected to the middle shaft 5 and is located between the two unidirectional mechanisms 4. The chain 31 sealed to the chain wheel 3 is fitted, and the chain 31 meshes with the chain wheel 3. Although not shown in the drawings, the chains are also fitted to separate chain wheels to be engaged with each other.

1 and 3, the unidirectional mechanism 4 includes an outer ring 41, a ratchet 42, and a pawl 43. A cylindrical cylindrical hole is provided in the center of the outer ring 41, and the middle shaft 5 penetrates the through hole in the center of the outer ring. The ball seat ring 412 is fitted and fixed to the middle shaft 5, and a set of balls are installed between the ball seat ring 412 and the inner wall of the outer ring 41, thereby allowing the outer ring 41 to rotate. (5) is fitted and connected. The ratchet 42 is a helical gear, which is fitted and fixedly connected to the middle shaft 5, and is located between the outer ring 41 and the chain wheel in close proximity to the outer ring 41. One end of the detent 43 is hinged to one end face of the outer ring 41 (for the sake of brevity, the end face to which the detent is fixed is the inner end face inside the outer ring, and the other end face of the outer ring is designated the outer end face). The other end is engaged with the ratchet 42 and is also located on the same side of the outer ring 41 together with the ratchet 42.

One end of the two swing levers 1 is fixed to the outer end surface of the two outer rings 41 by using a nut bolt or the like. The other end of the swing lever 1 is a pedal 11 is fixedly connected.

The guard plate 6 is fixed to the bracket of a bicycle or other machine. On the inner side of the guard plate (here, after the two guard plates are mounted, it points to the side where the guard plate 6 is covered), a connecting mechanism such as a connecting ring for connecting the abdominal spring 2 is installed. This is not shown in detail in the drawings. A coupling mechanism for connecting the abdominal spring 2 is also provided on the swing lever 1 near the pedal 11 position. Through the connecting mechanism, a spring is connected between the guard plate 6 and the swing lever 1. The action of the guard plate 6 not only secures the spring 2 but also causes a shielding action, which enhances the aesthetics of the bicycle or other machine, and also prevents the possibility that the shielded parts will injure the user. . The abdominal spring 2 also has the effect of limiting excessive lifting of the swing lever, thereby preventing the swing lever from being reversed beyond the highest point. The abdominal spring 2 can also be replaced with other elastic instruments such as elastic ropes or the like.

Referring to FIG. 4, the lower position limiting mount 7 includes a position limiting plate 71, a crossbar 72 and a fixing bar 73. The position limiting plate 71 is fixed to both ends of the crossbar 72 and is located below the swing lever 1. The crossbar 72 is fixedly connected to one end of the fixing bar 73. The other end of the fixed bar is fixedly connected to the intermediate pipe.

The driving process of the drive device is as follows: The two pedals 11 are initially in the highest position, and when the user presses the pedal 11 hard with two feet or one foot, the swing lever 1 swings downward. While the other end of the swing lever 1 causes the outer ring 41 to rotate around the middle shaft 5, the detent 43 is rotated along the outer ring to rotate the ratchet 42, thereby causing the middle shaft ( 5), the chain wheel (3) is driven along the middle shaft (5), and finally, a chain animal such as a chain wheel is driven by the chain (31). In this process, the abdominal spring 2 is pulled. Stopping the force causes the swing lever 1 to return to its original position under the action of the abdominal spring 2, to rotate the outer ring 41, and the detent 43 between the teeth of the ratchet 42 Since the sliding does not cause the ratchet 42 to rotate.

In another embodiment, the rocking lever is manufactured in the form of an "L" shape so that the long side and the short side are provided. The angle between the long side and the short side is smaller than 90 degrees, one end of the long side is fixedly connected to the outer ring, and the other side is connected to the short side. The short side extends obliquely upward and the end is fixed to the pedal.

In another embodiment, the handle is installed at one end of the swing lever to allow the user to drive by hand.

Thus far, the present invention has been described in detail with reference to specific examples. As can be seen from the above description, compared with the conventional equivalent drive device, the drive device according to the present invention is simple in structure, easy to manufacture, simple to use, free to operate, can be driven by hand, It can be driven, can be driven by one or both feet, and can be applied to different specific situations through simple adjustment or change.

Claims (10)

A manpower driving device for a kind of bicycle or other machine, which includes a swing lever, a chain wheel, an intermediate pipe, a middle shaft and a guard plate, in which a middle shaft is fitted into a middle pipe, and the chain wheel is fitted into a middle shaft. And a unidirectional mechanism inserted into and connected to the intermediate shaft, wherein the swing lever is fixedly connected to the unidirectional mechanism, and a double spring is further installed between the swing lever and the guard plate. 2. The unidirectional mechanism according to claim 1, wherein the unidirectional mechanism includes an outer ring, a ratchet and a tooth detent, wherein the outer ring is connected to the middle shaft in an electrically rotatable manner, one end of the swing lever is fixed to one end surface of the outer ring, and the tooth detent is an outer ring. It is fixed to the other end of the drive device, characterized in that the ratchet is engaged with the tooth detent while being fixedly connected to the middle shaft. 3. The driving apparatus according to claim 2, wherein the outer ring is connected to the middle shaft by a ball seat and a ball, and the ball seat is fixedly connected to the middle shaft. The method according to any one of claims 1 to 3, wherein the two unidirectional mechanisms are located on both sides of the chain wheel, respectively provided at both ends of the middle shaft, and the intermediate pipe is installed between the chain wheel and one of the unidirectional flywheels. One end of the swing lever is fixed to the two unidirectional mechanism. 5. The driving device according to claim 4, further comprising a rocking lever lower position restraint fixed through the intermediate pipe. According to claim 5, Wherein the restraint bracket includes a fixed bar, a crossbar and a position limit plate, the position limiting plate is located directly below the swing lever and fixedly connected to the crossbar, the crossbar is fixedly connected to one end of the fixed bar The other end of the fixed bar is a drive device, characterized in that fixed connection with the intermediate pipe. 7. The drive device according to claim 6, wherein a pedal is provided at the other end of the swing lever to allow the user to apply a force with his foot. 8. A drive device according to claim 7, wherein the pedal is fixed to the side of the other end of the swing lever. 8. The swing lever of claim 7, wherein the swing lever is bent in an L-shape, the angle between the short side and the long side is less than 90 degrees, and extends upward so that the short side is inclined, and the end is fixed to the pedal. Driving device. 7. The driving device according to claim 6, wherein a handle is mounted to the other end of the swing lever so that a user applies force by hand.

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