CN1982704A

CN1982704A - Manpower driver for bicycle or other machinery

Info

Publication number: CN1982704A
Application number: CNA2005101021487A
Authority: CN
Inventors: 卢炎晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-14
Filing date: 2005-12-14
Publication date: 2007-06-20

Abstract

A manpower driving unit for bicycles and other machineries includes a rocker, a sprocket, a centre tube, a centre shaft and a baffler. The centre shaft is socketed in the centre tube and the sprocket is fixed on the centre shaft. It also includes a one-way mechanism sleeved on the centre shaft, which is firmly-jointed with the rocker. Between the rocker and the baffler is disposed a return spring.

Description

Be used for bicycle or other mechanical Manpower driver

Technical field

The present invention relates to mechanical actuation device, in particular for bicycle or other mechanical Manpower driver.

Background technique

The bicycle that is widely used now adopts the rotary driving mode of circumference, because simple in structure, other structure is also relatively reasonable relatively in history, is therefore continued to use for a long time.But, near upper and lower dead point exerting oneself property difference this be known, the component velocity vertical with pedaling force direction is helpless to drive, and also increased the unnecessary motion in muscle and joint.Because the distance that substantially horizontal moves is bigger, be unfavorable for the stable of center of gravity in addition.

For this reason, oneself has many improvement projects.Chinese patent 85106710 provides a kind of driving mechanism and gear of rod driven bicycles, and the reciprocally swinging of the treadle by foot treadle is housed, drivening rod rotate crank, and connecting rod is subjected to tension.This mechanism to a certain degree can address the above problem, and still, because what go out that the stroke connecting rod is subjected at pedal is pulling force, in the main driving stage, the velocity distribution at foot treadle place is that slow earlier back is fast.In fact, lower limb can not with its cooperation, so input efficiency is not high yet.In addition, about foot-operated be interlock, both feet need one on the other the order circulation firmly.

Chinese patent 88203251.8 discloses a kind of pedal type pedal sitting posture bicycle, and user's both feet are alternately stepped on pedal, and pedal drives and pedals bar, pedals bar and drives the arc inner tooth bar, drives the tooth flywheel again, thereby drives axis and sprocket wheel, and sprocket wheel is by chain transmission.Need multistage transmission, the acting loss is arranged, efficient is not high.In addition, be interlock between two pedals, both feet need order circulation one on the other to exert oneself.

U.S. Pat 6173981 discloses a kind of traffic tool with operated by foot, drive the treadle rotation by stepping on pedal, treadle rotates and drives drag-line, drag-line pulling chain, chain drives minor sprocket, minor sprocket drives axle and rotates, rotate thereby drive hinge wheel, again by chain transmission to drive trailing wheel.Because through multistage transmission, it is not high to drive efficient.In addition, need be to the rear lower side firmly stepping on pedal, and make troubles to the user.And, be interlock between two pedals, both feet need order circulation one on the other to exert oneself.Also have its complex structure, manufacture cost height.

Most of at present bicycle that has the personage of obstacle to use for lower limb also adopts circumference formula driving mode, therefore also exists to go up lower dead centre and drive problems such as efficient is not high.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, drive the efficient height, and drive unit that can monolateral operation, it can be used for the driving of bicycle or other machinery.

The technological scheme of technical solution problem of the present invention is:

A kind of bicycle or other mechanical Manpower driver of being used for, comprise fork, sprocket wheel, middle pipe, axis and baffle plate, Intermediate shaft sleeve is connected in the middle pipe, the sprocket wheel socket is fixed on the axis, it is characterized in that: also comprise the unidirectional mechanism that is socketed on the axis, described fork is fixedlyed connected with unidirectional mechanism, also is provided with Returnning spring between described fork and baffle plate.

According to drive unit of the present invention, it is simple in structure, and is of many uses, drives the efficient height, and driving mode is flexible and changeable.

Description of drawings

Fig. 1 is the plan view of drive unit according to the preferred embodiment of the invention, and wherein Yi Bian baffle plate is removed, the another side baffle plate part of only drawing.

Fig. 2 is the plan view of drive unit among Fig. 1, wherein the two side guards part of all only drawing.

Fig. 3 is the rear view of unidirectional mechanism in the drive unit among Fig. 1, and other parts of drive unit are removed.

Fig. 4 is the plan view of the drive unit lower limit position frame among Fig. 1, and other parts of drive unit are removed.

Embodiment

With reference to figure 1 and Fig. 2, be a kind of according to the preferred embodiment of the invention drive unit, comprise two forks 1, two Returnning springs 2, sprocket wheel 3, two unidirectional mechanisms 4, axis 5, two blocks of baffle plates 6, lower limit frame 7 and middle pipes 8.

Middle pipe 8 is straight tubes, is used for fixing the forward and backward support that connects as bicycle, perhaps is used for fixing other mechanical support.Middle pipe 8 is arranged between one of them unidirectional mechanism 4 and the sprocket wheel 3.

Axis 5 passes middle pipe 8 and is socketed in the middle pipe 8 in rotating mode, such as being connected with ball base with ball, axis can radially be rotated and not move axially.Respectively be socketed with a unidirectional mechanism 4 at the two ends of axis 5.

Sprocket wheel 3 is fixedly sleeved to be socketed with the chain 41 of sealing on the axis 5 and be between the two unidirectional mechanisms 4 on sprocket wheel 3, chain 41 is meshed with sprocket wheel 3.Do not express in the drawings, chain also is enclosed within on driven other sprocket wheel, and engagement each other.

With reference to figure 1 and Fig. 3, unidirectional mechanism 4 comprises foreign steamer 41, ratchet 42 and ratchet 43.There is a cylindrical hole in foreign steamer 41 central authorities, axis 5 passes the through hole of foreign steamer central authorities, fixed cover is connected to ball race 412 on axis 5, is provided with one group of ball between the inwall of ball race 412 and foreign steamer 41, and foreign steamer 41 just is socketed on the axis 5 rotationally thus.Ratchet 42 is a helical gear, and is fixedly sleeved on axis 5, and foreign steamer 41 next-door neighbour and being between foreign steamer 41 and the sprocket wheel.Ratchet 43 1 ends are articulated on the end face of foreign steamer 41 (be convenient narration, specifying the fixing end face of ratchet is inner end in the foreign steamer, and the other end of foreign steamer is the exterior edge face), and the other end is meshed with ratchet 43, and are in the same side of foreign steamer 41 with ratchet 42.

One end of two forks 1 is fixed by the exterior edge face of two foreign steamers 41 separately, such as fixing with screw.Side at fork 1 the other end is fixedly connected with foot treadle 11.

Baffle plate 6 is fixed on bicycle or other the mechanical support.(after referring to that here two baffle plates are loaded onto, that side that baffle plate 6 is covered) is provided with the bindiny mechanism that connects Returnning spring 2 in the baffle plate inboard, as hook etc., and expression in detail in the drawings.On fork 1,, foot treadle 11 positions also are provided with the bindiny mechanism that connects Returnning spring 2 near being set.By above-mentioned bindiny mechanism, spring is connected between baffle plate 6 and the fork 1.The effect of baffle plate 6 is not only and is used for fixing spring 2, also plays the effect of blocking, and beautifying bicycle or other machinery, and can also avoid by its parts that block the user being caused damage.Returnning spring 2 also has the effect that the restriction fork excessively raises up, and overturns to avoid fork to cross peak.Returnning spring 2 also can substitute with other rubber-like mechanism, such as using elastic cable.

With reference to figure 4, lower limit frame 7 comprises limiting board 71, cross bar 72 and fixing rod 73.Limiting board 71 is fixed in cross bar 72 two ends, and is positioned at the below of fork 1.Cross bar 72 is fixedly linked with an end of fixing rod 73.The other end of fixing rod and middle pipe are fixedly linked.

The driving process of this drive unit is as follows: two foot treadles 11 all are in the extreme higher position at first, user's both feet or single pin are firmly stepped on foot treadle 11 downwards, drive fork 1 to lower swing, the other end of fork 1 drives foreign steamer 41 and rotates around axle 5, ratchet 43 rotates with foreign steamer and promotes ratchet 42 and rotates, rotate thereby drive axis 5, and and then sprocket wheel 3 is rotated with axis 5, driven by chain 31 at last and be driven thing, Returnning spring 2 is elongated in the process.After stopping firmly, fork 1 back swings to the origin-location under Returnning spring 2 effects, drives foreign steamer 41 revolutions, and ratchet 43 slides at the between cog of ratchet 42, can not cause the revolution of ratchet 42.

In another embodiment, fork is manufactured into " L " shape, has long limit and minor face.Angle between long limit and minor face is less than 90 degree.Long limit one end is fixedlyed connected with foreign steamer, and another side links to each other with minor face.Minor face tilts to extend upward, at its terminal fastening foot pedal.

In another embodiment, fork one end is provided with handle, so that the user can drive with the hand application of force.

Arrive this, the present invention is described in detail with specific embodiment.From above description as can be seen, compare with existing similar drive unit, driving device structure according to the present invention is simple, easily manufactured, using method is simple, and flexible operation can drive with pin, also can use hand-drive, can drive, also can drive by both feet with single pin.Through the concrete occasion of simply adjusting or change just can be different.

Claims

1. one kind is used for bicycle or other mechanical Manpower driver, comprise fork, sprocket wheel, middle pipe, axis and baffle plate, Intermediate shaft sleeve is connected in the middle pipe, the sprocket wheel socket is fixed on the axis, it is characterized in that: also comprise the unidirectional mechanism that is socketed on the axis, described fork is fixedlyed connected with unidirectional mechanism, also is provided with Returnning spring between described fork and baffle plate.

2. drive unit according to claim 1, it is characterized in that: described unidirectional mechanism comprises foreign steamer, ratchet and pawl, foreign steamer is socketed on the axis in rotating mode, one end of fork is fixed by an end face of foreign steamer, ratchet is fixed in the other end of foreign steamer, and ratchet is fixedly sleeved to be meshed on axis and with ratchet.

3. drive unit according to claim 2 is characterized in that: described foreign steamer is connected with axis by ball base, ball, and ball base is fixedly sleeved on axis.

4. according to each described drive unit of claim 1-3, it is characterized in that: include two unidirectional mechanisms and be arranged at the axis two ends respectively and be in the sprocket wheel both sides, middle pipe is arranged between sprocket wheel and one of them the unidirectional flywheel, and an end of two forks is individually fixed in described two unidirectional mechanisms.

5. drive unit according to claim 4 is characterized in that also comprising by the fixing fork lower limit frame of middle pipe.

6. drive unit according to claim 5, it is characterized in that: described position-limited rack comprises fixing rod, cross bar and limiting board, limiting board is positioned under the described fork and with cross bar fixedlys connected, and cross bar is fixedlyed connected with fixing rod one end, and the fixing rod the other end is fixedlyed connected with middle pipe.

7. drive unit according to claim 6 is characterized in that at the fork the other end foot treadle with the pin application of force for the user being installed.

8. drive unit according to claim 7 is characterized in that foot treadle is fixed in the side of the fork the other end.

9. drive unit according to claim 7 is characterized in that the L-shaped bending of fork, and minor face is spent less than 90 with long limit angle, and it is fixing foot-operated that minor face is tilted to extending end.

10. drive unit according to claim 6 is characterized in that the fork the other end is equipped with the handle with the hand application of force for the user.