CN87102900A - The lever drum drive can be stablized the bicycle that stops - Google Patents

Abstract

A kind of lever drum drive of using is with changing the throw of lever speed change and high speed, the labour-saving bicycle of parking stabilizing device being arranged.It back and forth scrunches, and does not have the dead point, and the person of riding exerts oneself greatly, and lever is very long again, and useful effect power is constant substantially, and can exceed conventional confguration more than four times.Its speed ratio variation range is considerably beyond 15 grades of change-speed boxs, and therefore the heavy duty upward slope is also lighter, and level road speed is very fast.Its stable lugs can also be given beginner's great convenience.Its open-and-shut circular arc fixed pedestal and cancelled chain drive etc. is simplified, rationally structure more.Easily make, cost is also cheap.

Description

The invention relates to the driving system of bicycle and the invention of stabilizing device.

Existing bicycle, because with chain-drive crank throw pedal gear, the person's of riding useful effect power becomes sinusoidal variation.When upward slope or heavy duty were gone slowly, pedal will pass through upper and lower dead point, and is just very difficult, at this moment makes people's fatigue especially easily, even can't ride at all; The temporary term stop of can not stablize during parking, especially city intersection being met red light, the person of riding also double-legged land, start again difficult, very inconvenient.

The purpose of this invention is to provide a kind of person of riding and exert oneself greatly, do not have the dead point, useful effect power is constant substantially and very big, has the speed ratio variation range very big, and can stablize and stop, and is simple in structure, the high speed that cost is lower, labour-saving bicycle.

The present invention walks around the outer track adjusting wheel of drive wheel with the middle part of a transmission rope, both sides more respectively with different rotation directions be wrapped in the drive wheel both sides and with drive wheel coaxial on have on two nooses of anti-skidding bead breach.The cable wire end is connected on the foot pedal lever of both sides by length-adjustable slide bushing nip.Two nooses are with being connected with the driving hub by the rotating single direction ratchet power-transfer clutch of two-way freedom, foot pedal lever can be a fulcrum straight-bar at one end, it is bearing on the live axle, the third wheel that the transmission rope of this moment need be walked around up just is connected with lever, and foot pedal lever also can be the knee of fulcrum in the centre.It is bearing on the axis near trailing wheel, and the transmission rope of this moment directly is connected with lever.Two pedals check and balance, and back and forth scrunch two levers, and two nooses just alternately combine with driving hub, promote drive wheel and ceaselessly rotate forward.The rotating single direction ratchet power-transfer clutch of two-way freedom, by fixing outer ratchet in the same way, the driving handle ratchet wheel that cable wire puts, convex breach and the tape spool connecting rod of hinge on movable pivoted housing on the driving hub, at the connecting rod other end, that float, the driving ratchet of tape spool and tight pulley ratchet with holes, and the dual-purpose spring that connecting rod one end is pushed the rod spring of convex breach and can uphold two ratchets is simultaneously formed.When walking one's bicycle or bicycle when advancing by inertia, driving pawl is motionless, the convex breach of drive wheel is just pushing away connecting rod and movable pivoted housing, rotates forward with drive wheel; When two levers back and forth promoted bicycle and advance, this mechanism was just identical with general ratchet device function; When go-cart fell back, fixed ratchet wheel just forced the other end of ratchet, had been with connecting rod and is driving ratchet to skid off the convex breach, and drive wheel can oppositely dally.Bicycle is by changing the throw of lever speed change.Its selector gear all passes a flexible pipe simultaneously by two ends, and the sealing speed change steel cable that twines and be fixed on the speed change rope sheave constitutes, and the speed change rope sheave is by the speed change hand wheel shaft, is sleeved in the speed change rope sheave seat on the forward vehicle frame of taking turns vertical shaft.The track adjusting wheel of lever front end is walked around at speed change steel cable middle part, and is connected with the slide bushing nip of transmission rope end.Flexible pipe one end is fixed on the vehicle frame, and the other end is fixed on the hinge end of lever, and allows movable place that bigger garden arc loose part is arranged.Two pedals all have identical speed change steel cable closed-loop, and the two ends of two speed change steel cables are all twined and are fixed on the same speed change rope sheave.Rotate the speed change handwheel, two speed change steel cables just circulate in the formed loop of track adjusting wheel of speed change rope sheave, flexible pipe and lever front end, and move to required shift pattern simultaneously with the slide bushing nip of two transmission rope ends.Wheel carrier is stablized in the parking of bicycle, by being sleeved on flexible connection axle in the live axle, all being made up of two strut bars of a steamboat in these two ends, bottom.Two bars are in same plane, and it is detouchable that a bar is arranged.Wheel carrier uses spring suspension backward on vehicle frame, is supported on the drive wheel both sides during parking vertically downward.It is by backguy, and the little torque arm that is subjected to also to be located on the special-purpose handle of left hand position is controlled.On the connecting panel of vehicle frame rear axle one side, two link stoppers and the spring hook that have definite steady wheel chord position to put.Ride and HOP ON for making, on a certain section of transmission rope, adorn two spacing cards, establishing two link stoppers on the cooresponding vehicle frame with it, make the spacing card of its transmission rope, must not surpass this link stopper in crank motion, this has just limited the extreme lower position of pedal.

The invention has the advantages that: its mode that back and forth scrunches, it is very big that the person of riding is exerted oneself, and do not change, lever is also very long, its maximum useful effect power can exceed more than four times of conventional confguration form, its simple and practical speed-changing mechanism, considerably beyond the speed ratio variation range of 15 grades of change-speed boxs, therefore its heavy duty upward slope is also lighter, and level road is quite fast; Its stable lugs are returned beginner's great convenience, and it is with open-and-shut fixedly garden arc pedal, and do not have chain sprocket etc., and structure more rationally and is greatly simplified.Easy to manufacture, cost is low.

Clearly, this driving system also is applicable to other various manpower driving devices.

Fig. 1 is curved lever bicycle with pedal.

Fig. 2 is straight lever bicycle with pedal, and it is the simplest vehicle frame that does not have axis, the fastest labour-saving bicycle of riding.

Fig. 3 is for live axle and stablize the wheel carrier component diagram.

Fig. 4 is the A-A cutaway view among Fig. 3, and it has showed the two-way single direction ratchet power-transfer clutch that freely turns round when rotating and reverse, relation such as the position of connecting rod and two ratchets etc.

In embodiment Fig. 1,2, after track adjusting wheel (16) was walked around at transmission rope (17) middle part, both sides were wrapped in different rotation directions on the left and right sides cable wire cover (12) of drive wheel both sides, and the slide bushing nip of two bitter ends (9) is connected with left and right sides foot pedal lever (11).In Fig. 2, cable wire also need be walked around third wheel (10) up.Speed change steel cable (7) passes flexible pipe (8), head and the tail all twine and are fixed on the speed change rope sheave (3), (3) be sleeved in the speed change handwheel seat (2) on the vehicle frame by speed change hand wheel shaft (4), flexible pipe (8) two ends are separately fixed at vehicle frame and lever hinge end, the track adjusting wheel (15) of lever front end is walked around at speed change steel cable middle part, and be connected with the slide bushing nip (9) of transmission rope end, the connecting bushing of stablizing wheel carrier (14) is contained in the live axle (13), and the position of stable wheel carrier is being controlled in the little torque arm (5) on the special-purpose handle (6) by backguy (1).The spacing card (35) of restriction pedal end position is contained on the transmission rope on track adjusting wheel both sides.

In Fig. 3, driving hub (29) is bearing on the Y-axis bearing sleeve (23) of being with ratchet, left and right sides transmission rope cover (12) is sleeved on the Y-axis bearing sleeve, left and right sides driving pawl (27) is with being threaded in the left and right sides cable wire cover, the same connecting rods of two movable pivoted housings (26) (25), about drive ratchet (28), left and right sides tight pulley ratchet (24) etc. and be contained in respectively together in left and right sides cable wire overlaps.About straight lever pedal (20), (32) by lining (21), be sleeved on the live axle (13), left and right sidesing post (18), (34) of stablizing wheel carrier are sleeved in the live axle by adapter shaft (19) together, right strut bar (34) is connected with adapter shaft with screw (33), transmission rope (17) freely passes through in the left and right connecting plates (22) of vehicle frame rear axle, the groove of location link stopper (36) on (31), but this groove is not crossed the spacing card on the cable wire.

Among Fig. 4, be installed with driving pawl (27) in the cable wire cover (12), the movable same connecting rod of pivoted housing (26) (25), driving ratchet (28), tight pulley ratchet (24) and two springs are together, also be sleeved in the cable wire cover, rod spring (35) allows connecting rod always be reluctant to leave the convex breach that drives hub (29), dual-purpose spring (37) is always stretched out two ratchets, makes it near driving pawl (27) and fixed ratchet wheel (23).

Claims (8)

1, a kind of lever drum drive, can stablize the bicycle that stops, it is characterized in that it use the lever drum drive, with change throw of lever speed change, and a parking stabilizing device and pedal end position killer are arranged.

2, a kind of can the rotating single direction ratchet power-transfer clutch of two-way freedom, it is characterized in that it has a pair of inside and outside ratchet in the same way, they one are fixed ratchet wheel, and one is driving pawl, have and on two ratchets, to work respectively, and the connecting rod band on movable pivoted housing of being hinged two ratchets that float that rotate.With a drive wheel that the convex breach arranged.With two float the connecting rod moved end of ratchets, often be pressed into the convex breach of drive wheel by spring.When drive wheel was just changeing, driving pawl can be worked, at this moment, be as good as with existing ratchet device function, drive wheel when counter-rotating, fixed ratchet wheel by ratchet, force the connecting rod band the driving ratchet to skid off the convex breach, drive wheel is an idle running.

3, a kind of manipulation transmission device that can change the displaceable member position, it is characterized in that it is contained on the steering handwheel axle and twines and fixing the rope sheave of the two ends of the steel cable that all passes simultaneously a flexible pipe, the middle part of steel cable walk around track adjusting wheel and be moved part and be connected, the closed-loop that this steel cable forms, can make it when the tensioning flexible pipe, rotate steering handwheel, can change the position that is moved part.

4, lever drum drive parts as claimed in claim 1 is characterized in that it walks around track adjusting wheel by transmission rope middle part, both sides be wrapped in respectively with drive wheel coaxial, above have on two nooses of anti-skid structure, two cable wire ends are connected on two levers.Two nooses are connected with the driving hub by pawl clutch.

5,, it is characterized in that this power-transfer clutch is for can the rotating single direction ratchet power-transfer clutch of two-way freedom as claim 1,2,4 described bicycle use pawl clutches.

6, as the steering unit of claim 1,3 described change throw of levers, it is characterized in that two steel cable ends of handling the loop of its left and right sides lever, all twine and be fixed on the same rope sheave, and the both sides action is synchronous.

7, parking stabilizing device as claimed in claim 1, it is characterized in that it has the strut bar of two bottom band steamboats, adapter shaft in the live axle removably is connected in the same plane by being sleeved on, it is by backguy, controlled by the little torque arm on the special-purpose handle.

8, pedal end position killer as claimed in claim 1, it is characterized in that it transmission rope certain the section in spacing card is housed, on the relevant position of vehicle frame, the location link stopper that spacing card must not be surmounted is arranged.

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