CN200960969Y - Reciprocating bicycle convenient for sitting and standing - Google Patents

Abstract

The utility model relates to an oscillating traverse style bicycle with pedals including a handle, a front fork, a front wheel, a knuckle spindle, a front brake assembly, a bicycle frame, a small back wheel link sprocket, a back wheel shaft and a rear brake assembly, the bicycle pedals are connected via a dual pedal bar cross connecting system, which meanwhile drives the wheels directly via a side-placed internal ratchet-gear wheel. The utility model is essentially characterized in employing trampling the pedals on two sides with both feet to drive thereby utility model has the advantages of high drive efficiency, excellent upright riding performance, strong climbing and cross-country ability, increased limit bicycle speed, high stationary, safety and reliability.

Description

Sitting reciprocally swinging formula convenient to both is stepped on the pin bicycle

Affiliated technical field

The utility model relates to a kind of reciprocally swinging formula and steps on the pin bicycle.It can be seated as existing " swinging step " bicycle and ride, be particularly suitable for again steadily, like a cork, the vertical type that can be fine utilize health to conduct oneself with dignity to drive is ridden, thus " sitting reciprocally swinging formula convenient to both is stepped on pin " bicycle by name, abbreviation " physical pendulum car ".

Background technology

As everyone knows, bicycle is of long standing and well established according to legend.In the very long years, through constantly improving and innovation, bicycle is gradually improved, and forms car type various in style.But take a broad view of various bicycle in different poses and with different expressions of all times, they have a ceternally immutable common feature---the mode of motion that is its " step " is helicoid.We can be referred to as all existing various bicycles and be " swinging step bicycle ".

Analyze existing bicycle people driving principle as can be known, though two pedal strokes around the coaxial gyroscopic movement of doing, people's both feet remain reciprocally swinging.This is the picture piston crank mechanism a bit, and different is that people's pin and tread plate are not hinged, but does that one-stroke is unidirectional steps on the effect of stepping on, and therefore with regard to single pin, steps at every turn and steps on the scope that drives the application of force and be not more than 180 and spend.This steps on to step at every turn and drives application of force scope, is called to drive the angle.To ask that now this drives that the angle is much to suit.This is related to the reasonableness of existing " swinging step " bicycle.Be necessary to do the demonstration of following theory for this reason.

Shown in figure one, getting people's pin, to step on force direction be X-direction.Though (size and Orientation of the actual power of stepping on all changes to some extent, and is little, and we establish it and are constant for simple and clear problem, and this does not influence the correctness of demonstration.) be the Miao Shi coordinate system of initial point " O " with pedal stroke revolution axle center.

If:

1, P steps on for people's pin and steps on propulsive effort (it is parallel with X-axis)

2, R is for stepping on origin of force radius of turn (also being that pedal stroke is long)

3, θ ⁰Step at every turn and step on the initial angle that applies when stepping on power.

4, θ ^tStep on the round angle when stepping on application of force termination at every turn.

5, θ=θ ^t-θ ⁰Step at every turn and step on application of force sphere of action.(being driving noted earlier angle)

6, S=R θ drives the pairing arc length that is turned on the circumference of origin of force of stepping on of angle θ.

7, F (θ) is that round angle is θ ^XThe tangential component of Shi Dengli P on circumference.

8, M (θ)=RF (θ) is that round angle is θ ^XThe time act on the torque of pedal stroke.

9, A steps on to step on effective merit that manpower is done at every turn.

Then equation is set up.

$A=\∫M\left(\mathrm{\θ}\right)\mathrm{d\θ}=\∫\mathrm{RF}\left(\mathrm{\θ}\right)\mathrm{d\θ}={\∫}_{{\mathrm{\θ}}_0}^{{\mathrm{\θ}}_t}\mathrm{PRSin\θd\θ}$

Definite integral (deriving slightly):

$A-\mathrm{PR}[2\mathrm{Sin}{\mathrm{\θ}}^0\·\mathrm{Sin}\left(\frac{{\mathrm{\θ}}^t-{\mathrm{\θ}}^0}{2}\right)\·\mathrm{Cos}\frac{{\mathrm{\θ}}^t-{\mathrm{\θ}}^0}{2}+2\mathrm{Cos}{\mathrm{\θ}}^0{\mathrm{Sin}}^2\left(\frac{{\mathrm{\θ}}^t-{\mathrm{\θ}}^0}{2}\right)]...\left(1\right)$

If θ distributes with respect to the y rotational symmetry, then ${\mathrm{\θ}}^0=\frac{\mathrm{\π}-\mathrm{\θ}}{2}...\left(2\right)$

∵ θ=θ again ^t-θ ⁰(3)

With (2) (3) formula substitution (1) formula and through putting in order:

$A=\mathrm{PR\θ}\frac{\mathrm{Sin\θ}/2}{\mathrm{\θ}/2}...\left(4\right)$

∵S＝Rθ (5)

∴ $A=\mathrm{PS}\frac{\mathrm{Sin\θ}/2}{\mathrm{\θ}/2}...\left(6\right)$

Make A _o=PS (7)

$K=\frac{\mathrm{Sin\θ}/2}{\mathrm{\θ}/2}...\left(8\right)$

A=KA then _o(9)

Divide board-like (5), (7) as can be known, as long as the identical then A of S ₀Also identical, step at every turn promptly also that to step on the merit that the people exports identical, we are called A ₀Step on the apparent merit that people's pin is exported for step at every turn, but identical S can be made of different R and θ.But this moment their effective merit A difference.From formula 8,9 as can be known K reduce along with the increase of θ.K → 1 when θ → 0, when θ → 180 °, Kmin=0.636, existing swinging step bicycle is owing to be subjected to the restriction of gyroscopic movement form.The long R of its bar must be restricted, in order to export necessary apparent merit A ₀It must have enough big driving angle θ, and this is that existing bicycle drives one of efficient low reason.

In addition, the actual angle θ of driving can not be too little (if it is too little to drive angle θ, as the necessary apparent merit A of output ₀Must want the long R of unlimited extension rod, this is actually impracticable) more can not be too big, be tending towards 180 °.Because work as θ ^t→ 180 ° of θ then ⁰→ 0, and tangential component F → 0 of θ=180 ° and θ=0 ° 2, step will lean on inertia to rotate, and claims be the dead point at these 2, and near the power of all stepping on the dead point is pointed to the revolution axle center increases friction drag, hinders pedal stroke to rotate, so can not apply the power of stepping near the dead point.So in fact existing bicycle is stepped on to step on and is driven the angle and be generally θ=100～120 degree, both feet 2 * θ=200～240 degree, this means to have in whole running period in 160～120 degree scopes does not have drive torque.Can be referred to as to call the dead zone.Existing " swinging step " bicycle is because the existence of dead zone has following two disadvantages again:

One, because the dead zone also must take cycle regular hour, influences the acceleration/accel of driving frequency, limited the further raising (especially for racing car) of the speed of a motor vehicle.

Two, because when the dead zone, both feet all can not be supported the health deadweight, if ride as vertical type, then body is important supports by both hands handle hand, this just can not finely utilize the health deadweight to step on and step on driving, and brings difficulty also can for the assurance balance, requires vertical cyclist to have higher driving skills also very to require great effort.Therefore existing bicycle is general does not do vertical riding by bike per capita.No wonder there is the expert not point out not for a long time by bike, otherwise because of perineal position is forced to for a long time, the local blood circulation is obstructed and easily suffers from some organic disease.

In sum, existing " swinging step " bicycle has following three big disadvantages:

One, drive efficiency is lower.

Two, further improve the speed of a motor vehicle and be restricted (especially for racing car)

Three, be not suitable for uprightly riding.Can not sitting replace, to lessen fatigue.So should not ride for a long time.

Summary of the invention

For a change above-mentioned disadvantage, the utility model purpose provide a kind of can being seated and ride, and can effectively drive from recast by the fine health that utilizes, and steadily make the bicycle of uprightly riding like a cork.

Technical solution of the present utility model for this reason is two to step on pin and connect by two bar crossed linkage mechanism of stepping on, and twoly simultaneously steps on the bar crossed linkage mechanism and connects with wheel by side putting type internal tooth ratchet direct drive mechanism.

The utility model most critical be the gyroscopic movement form that changed existing bicycle pedal stroke oscillating traverse motion form for " stepping on bar ".Step under the basic unmodified prerequisite of apparent merit that manpower exports stepping at every turn simultaneously, adopted than long R of stock and less driving angle θ, with the raising drive efficiency.

Stepping on the bar crossed linkage mechanism for described pair can have several forms, and a kind of is the bevel drive link gear, and a kind of is gentle rope and pulley crossed linkage mechanism.The former manufacturing cost is more expensive, but the efficient height, compact conformation, Installation and Debugging are easy, and it is convenient particularly to drive the angle size adjustment.Latter's manufacturing cost is low simple in structure, but is difficult for installing and debugging, in case particularly scantling of structure is determined, driving the angle can not regulate.Also has pneumatic and hydraulic power pack in addition.Do following summary with regard to the link gear of bevel drive below.

Described finishing bevel gear cuter link gear is made of two conical gears of phase and a jackshaft finishing bevel gear cuter, and two circular cone teeth that are equal to have long wheel hub, and its endoporus is left-right symmetric by bearing and is loaded on the same main shaft.Two bars of stepping on rotate the cylindrical of endoporus and the two finishing bevel gear cuters outside wheel hub of symmetry with thread connection.The jackshaft finishing bevel gear cuter is anchored on gear wheel shaft, its axis is 90 ° of vertical layouts with spindle axis in same horizontal surface, make two symmetrical conical gears and same jackshaft finishing bevel gear cuter make 90 ° of engaged transmission, two step on bar by certain driving angle θ intersection interlock about realization.

Described side putting type internal tooth ratchet direct drive mechanism comprises that two internal tooth ratchets and two pawl wheels connection ratchets constitute.The cylindrical of the two finishing bevel gear cuters outside wheel hub that two inboard mounting rings of two internal tooth ratchets and two symmetries are installed is with thread connection (adjacent two rotor outsides of stepping on).The outside mounting ring of two pawl wheels connects (being the side putting type structure) with main shaft with flat key.To ratchet crop rotation unidirectional drive, its driving direction and manpower are stepped on and are stepped on bar rotor switched in opposite by ratchet for two ratchet internal tooths.For example the right side application of force is trampled and is stepped on pin and make and step on bar rotor forward rotation, driving the right side finishing bevel gear cuter just changes, and makes left side awl tooth backwards rotation drive that the bar rotor is stepped in the left side and left side internal tooth ratchet backwards rotation drives the left side pawl wheel by ratchet and main shaft is done reverse revolution by the jackshaft finishing bevel gear cuter.Simply connected of a simply connected or duplex when function (have regulating control speed) driving gear and output shaft or dual gear engaged transmission are housed on main shaft in addition to be made output shaft make forward to turn round, the hinge wheel that drives output shaft is done the forward revolution, is rotated in the forward by chain-driving driving minor sprocket and trailing wheel bicycle is moved ahead.Vice versa.Two intersection layouts of stepping on the bar driving that Here it is, its effect is to make to step on to step on the propulsive effort and the left and right sides of Resistance Distribution jackshaft finishing bevel gear cuter axis (parallel with the front and back wheel axis), reduce the overturn moment of stepping on side to stepping on greatly, make travel by bike in very steadily when riding (this point to particularly important) as vertical type.When in addition if speed-regulating function being arranged, then the dual gear of output shaft will connect with output shaft with spline, and set up a cover and make dual gear slippage on castellated shaft, the shift fork and the control system of location, the regulating mechanism of gear is simpler than the transmission system of existing cycle chain, and compact conformation is controlled sensitive and accurate, and be difficult for the wearing and tearing device, this is justifiable.

Description of drawings

Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.

Fig. 1: existing bicycle is stepped on the force diagram when stepping on;

Fig. 2: the lateral plan of this enforcement;

Fig. 3: parts are stepped on the A-A revolved view of stepping on driving box.

The specific embodiment

Present embodiment comprises brake assemblies 5, vehicle frame 6, trailing wheel connection minor sprocket 7, hind axle 8, back brake assembly 9 before the handle 1, front fork 2, front-wheel 3, front wheel spindle 4, steps on and step on driving box 10 and step on bar limiting device 11 shown in figure two.

Shown in figure three, described stepping on stepped on driving box 10 and comprised: outer casing 21, casing 22, step on pin 23, step on bar 24, two bar link gear 25, side putting type internal tooth ratchet direct drive mechanism 26, main shaft 27, driving gear 28, finishing bevel gear cuter wheelboss inner hole bearing 29, spindle nose bearing 30, output shaft 31, output shaft gear 32, output shaft sprocket wheel 33, output shaft end bearing 34 and chain 35 stepped on constitute.

Step on the bar link gear and comprise conical gear 41, jackshaft finishing bevel gear cuter shaft coupling 42 for described pair, jackshaft bearing 43, jackshaft bearing seat 44 constitute the jackshaft bevel gear shaft, jackshaft finishing bevel gear cuter shaft coupling 42 is installed in the bearing seat 44 by bearing 43, the end tightens up with nut, bearing seat 44 is in the bearing saddle bore that horizontal surface is vertically installed in the casing antetheca, the wheelboss inner hole of bipyramid gear 41 is contained on the same main shaft 27 by finishing bevel gear cuter wheelboss inner hole bearing 29, and present left-right symmetric for main shaft mid point finishing bevel gear cuter face, make two finishing bevel gear cuters 41 and same jackshaft finishing bevel gear cuter 42 make 90 ° of engaged transmission.Two rotor endoporus of stepping on bar 24 respectively with the cylindrical of bipyramid gear two outside wheel hubs with thread connection, realize that two bars of stepping on do to intersect interlock with certain pivot angle θ (promptly driving the angle).

Described side putting type internal tooth ratchet direct drive mechanism 26 comprises internal tooth ratchet 51, and pawl wheel connection ratchet 52 constitutes, and the endoporus of the inboard mounting ring of internal tooth ratchet 51 is with on the outside thread that is screwed at bipyramid gear two outside wheel hubs, adjacent two outer rafters of bar rotor of stepping on.The outside mounting ring endoporus and the main shaft of two pawl wheels 52 tightly join (implication that is side putting type internal tooth ratchet device) with flat key.The internal tooth of internal tooth ratchet 51 is implemented folk prescriptions to driving by ratchet to pawl wheel 52, and its driving direction and manpower are trampled and stepped on bar rotor switched in opposite (promptly pair step on bar driving intersect layout).Step on the initial gap that the beginning application of force drives for reduce to step on as far as possible at every turn, the number of detents of every pawl wheel is not 2, but 3-4 only, (being multi-claw type internal tooth ratchet device).

A driving gear 28 is housed on main shaft 27 in addition to be connected with flat key, main shaft 27 two ends are installed in the bearing saddle bore of wall box by bearing 30, output shaft gear 32 connect with output shaft 31 with flat key and with driving gear 28 engaged transmission, the output shaft opposite side is equipped with output shaft sprocket wheel 33 by the chainlet crop rotation chain-driving of chain 35 with trailing wheel 7.The output shaft two ends are installed in the bearing saddle bore of box bilateral wall by two output shaft end bearings 34.Like this when a side (such as the right side), trample the right side when stepping on pin with right crus of diaphragm, then the right side is stepped on bar rotor drive right side finishing bevel gear cuter and is made forward rotation, make left side finishing bevel gear cuter backwards rotation by the jackshaft finishing bevel gear cuter, and the bar kinetoplast is stepped in the drive left side and left side internal tooth ratchet is made backwards rotation, make left side ratchet internal tooth pass through ratchet, to the left side sour jujube grab the wheel and main shaft implement reverse driving, make main shaft and the reverse revolution of driving tooth crop rotation, drive output shaft and hinge wheel and do the forward revolution, trailing wheel is rotated in the forward, car is moved ahead by chain-driving, vice versa, and bicycle is constantly moved ahead.

In sum, manpower type of drive of the present utility model has following characteristics:

One, manpower is stepped at every turn and is stepped on the apparent merit and the basic phase of existing swinging step bicycle of exporting Under the prerequisite together, owing to adopted long bar R and the littler driving angle θ of stepping on, therefore have higher Drive efficiency.

Two, because the motion mode that the utility model is stepped on bar is oscillating traverse motion, the dead zone that does not have no driving moment in the period of motion, can accelerate effective driving frequency, thereby improve the limit speed of a motor vehicle (especially for racing car) of bicycle

Three, because the utility model is stepped on the bar motion mode, when vertical type was ridden, body weight could So that double-legged one after the other supporting to be arranged, so can fine utilization conduct oneself with dignity to drive vehicle. Thereby have very strong Climbing capacity. The utility model adopts two bars of stepping on to drive the intersection layout simultaneously, in greatly reducing to travel Step on the overturn moment of stepping on side, it is very steady to ride, and can make vertical riding become row steadily, easily, no Effort. So but sitting is alternately ridden, lessen fatigue, can ride for a long time, and be more suitable for doing Cross-country riding.

If have emergency to want to change before four, existing swinging step bicycle is run under steam Become direction of traffic and want to change and trample application of force side and (for example will trample from the right side application of force and become immediately the left side The application of force is trampled reality, thereby becomes immediately the left front row of right front behavior) very difficult, when sometimes very urgent, letter Directly impossible. And the utility model all can change immediately and trample the application of force no matter step on pin in any position The orientation, thereby turn to sensitivity. So the high security reliability of row is arranged.

Claims (8)

1, a kind of sitting reciprocally swinging formula convenient to both is stepped on the pin bicycle, comprise handle, front fork, front-wheel, front wheel spindle, preceding brake assembly, vehicle frame, trailing wheel connection minor sprocket, hind axle, back brake assembly, it is characterized in that: the pin of stepping on of this bicycle connects by two bar crossed linkage mechanism of stepping on, and the while, two bar crossed linkage mechanism of stepping on connected with wheel by side putting type internal tooth ratchet direct drive mechanism.

2, sitting according to claim 1 reciprocally swinging formula convenient to both is stepped on the pin bicycle, it is characterized in that: described two bar crossed linkage mechanism of stepping on adopt garden bevel drive link gear.

3, sitting according to claim 1 reciprocally swinging formula convenient to both is stepped on the pin bicycle, it is characterized in that: described two bar crossed linkage mechanism of stepping on adopt gentle rope pulley link gear.

4, sitting according to claim 1 reciprocally swinging formula convenient to both is stepped on the pin bicycle, it is characterized in that: described two bar crossed linkage mechanism of stepping on adopt pneumatic and hydraulic power pack.

5, sitting according to claim 2 reciprocally swinging formula convenient to both is stepped on the pin bicycle, it is characterized in that: step on the bar link gear and comprise conical gear for described pair, jackshaft finishing bevel gear cuter shaft coupling, jackshaft bearing jackshaft bearing seat constitutes the jackshaft bevel gear shaft, by bearing installation in bearing seat, the end tightens up with nut, bearing seat is in the bearing saddle bore that horizontal surface is vertically installed in the casing antetheca, the wheelboss inner hole of bipyramid gear is contained on the same main shaft by bearing, and present left-right symmetric for main shaft mid point finishing bevel gear cuter face, make two finishing bevel gear cuters and same jackshaft finishing bevel gear cuter make 90 ° of engaged transmission, two rotor endoporus of stepping on bar respectively with the cylindrical of bipyramid gear two outside wheel hubs with thread connection, realize that two bars of stepping on do to intersect interlock with certain pivot angle θ.

6, step on the pin bicycle according to claim 1 or 2 or 3 or 4 or 5 described sittings reciprocally swinging formula convenient to both, it is characterized in that: this side putting type internal tooth ratchet direct drive mechanism comprises the internal tooth ratchet, pawl wheel connection ratchet constitutes, the endoporus of the inboard mounting ring of internal tooth ratchet is stepped on the outer rafters of bar rotor for adjacent pair with on the outside thread that is screwed at bipyramid gear two outside wheel hubs.The outside mounting ring endoporus and the main shaft of two pawl wheels tightly join with flat key, and to ratchet crop rotation unidirectional drive, its driving direction and manpower are stepped on and stepped on bar rotor switched in opposite by ratchet for two ratchet internal tooths.

7, sitting according to claim 1 reciprocally swinging formula convenient to both is stepped on the pin bicycle, it is characterized in that: be provided with speed-changing mechanism between side putting type internal tooth ratchet direct drive mechanism and trailing wheel.

8, sitting according to claim 7 reciprocally swinging formula convenient to both is stepped on the pin bicycle, it is characterized in that: described speed-changing mechanism is between main shaft and output shaft, and this speed-changing mechanism is a kind of speed-change gear.

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