CN1273198A - Second-generation speed-varying bicycle with individually suspended vibration dampers of front and back wheels and dual boosters - Google Patents

Abstract

A second-generation bicycle with individually suspended front and back wheels for vibration damping, variable speed and dual boosters. Its I-shaped frame is linked to front wheel via an easily deforming parallelogram damping frame and to back wheel via back damper. When the front or back wheel jumps or the weight of human body shifts, the lever mechanism acts on the drive unit in speed varying gear to transform the reciprocating movement of vibration dampers to rotary torque to drive back wheel. Its advantages include saving labour by 66.6%, and high speed increased by one or two times.

Description

The second generation, front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle

The present invention relates to a kind of with wheel ride instead of walk simple machinery, the particularly second generation, the device of front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle.

Bicycle is by the manpower foot-driven, is to be become complete line car body systems such as a manipulation, transmission, walking along the street by unit constructions such as vehicle frame, front-wheel, front fork, handlebar, brake, saddle, pedal, car thigh, axis, chain wheel, chain, flywheel and trailing wheels.The short distance traffic instrument can be made, the physical fitness apparatus can be made again.Easy to use, easy to maintenance, consumes energy not, it is desirable not producing the three disasters.But the vehicle that this simple and flexible is light have such problem: mono-is foot-operated to be driven, under power not only, and make the people tired easily.Especially Uneven road, the vibration of jolting in the driving is felt under the weather the people, also damages parts and vehicle frame easily.Not only high but also little triangle saddle is ridden with discomfort is arranged the woman more.Meet the weather of blowing, frontal resistance is big, and driving is difficulty more.

In order to address this problem, existing way is to increase gear arrangement, utilizes laborsavingly, does not economize merit and reconciles revolution ratio.But, still not ideal; Outer speed change, chain does not take the air line, and loads greatly or too hard, fractures easily; The internal speed-changing instability, anti-impact force is relatively poor, and under power does not solve.Chinese patent application ZL97231201,3U propose front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle.Three problems of this car device solves: the first, produce vibration problem when solving the wheel spring.The second, solve single pedal power, the problem of under power.The 3rd solves the problem that speed change is unstable and chain does not take the air line.But frontal resistance in driving, the problem that need overcome does not solve.The not only high but also little triangle saddle inconvenience of getting on or off the bus, interests woman problem does not by bike solve.

The objective of the invention is to provide, the second generation, front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle device.It has in the effect of producing of two-supremes one low resemblance: reduce frontal resistance, reduce people's height onboard, improve body part constriction.On body construction: it dwindles vehicle frame and becomes 1 font, has increased movable position; Car body has the flexible and elasticity of certain limit, in soft movability, has effectively utilized foot-operated power when especially driving a vehicle, human body gravity, and the spring of front and back wheel, application force and antagonistic force produce propulsive effort forcefully in conjunction with former and later two lever machinery motions.

The object of the present invention is achieved like this: the car front portion is provided with streamlined reefer housing, presents wide streamline contour behind the paracone, and its effect is: the one, and for the people that drives is blocked positive travel fatigue.The 2nd, decompose air-flow, reduce frontal resistance.The 3rd, with the wind the time, can borrow the wind speed power-assisted.The rear platform at car rear portion is arranged on the shelf of back, and its height and position form seat with saddle, and the waist anxiety is alleviated in its effect, can conveniently load belongings again.This product 1 font vehicle frame rear-inclined is bigger, and the angle that leg is pedaled power increases, and the saddle that sets each other off reduces, and increases width, alleviates that body part is oppressed and facility is got on or off the bus.This body construction is the saddle and the rear platform of load human body weight in 1 font vehicle frame upper end, and the centre is damping supporting frame and back shelf, and the lower end is a change speed gear box.Left and right sides car thigh is assemblied on the axis probe of change speed gear box both sides; Chain wheel is on the castellated shaft that is assemblied in the same center of circle of axis, same chain, the outside transmission device that flywheel and trailing wheel are formed.The front wheel independent suspension damper mechanism is made up of front-wheel, front fork, front fork central siphon, handlebar, top link, swing arm down, preceding damping spring.Because on the front wheel independent suspension vibration-absorbing mounting, be provided with the special property of guide front wheel and steering handlebar, utilize top link and following swing arm two ends to be bearing between front fork central siphon and the vehicle frame with wheel shaft type, form the parallelogram of movability, its effect is can be when axial rotation, and handlebar is with the parallel motion of vehicle frame.Preceding damper spring is bearing in down between swing arm (1/5th or 1/4th places) and the damping supporting frame, as balance.The rear wheel independent suspension damper mechanism is made up of trailing wheel, rear crotch assembly, back damper spring.One end of rear crotch assembly is hind axle fixedly, and an end is fixed on the both sides probe of back sector shaft of change speed gear box, and back damper spring is bearing between rear crotch (1/5th or 1/4th places) and the damping supporting frame rear end, as balance.The shared resistance gauge of front and back wheel independent suspension damper mechanism (change speed gear box).Change speed gear box in 1 font vehicle frame lower end has three effects, and first becomes the resistance gauge that transmits unidirectional force when vibration damping, and the secondth, the speed-changing mechanism of conciliation revolution ratio; The 3rd admits and changes the comprehensive organ of forward swing power, back pendulum power, pedal power and carrying force.Concrete work is such: (pedal is wherein arranged, saddle, back shelf) on human body weight load vehicle frame, the car body recipient produces body and changes, and as the front and back damper spring of balance, is subjected to the accumulation of energy of gravity impact compress.Front and back wheel independent suspension vibration-absorbing mounting, lever situation act on the front and back helical teeth fan in the change speed gear box, under the effect of engagement revolution ratio, and the front and back floating gear, by the end face toothed disc, interlock clutch gear or clutch driven gear.Foot-operated power is that the internal diameter sawtooth by the cam on the axis, ratchet, clutch gear adds.Interact inside and outside the power of this three aspect, assistance is again separately independently mutually.Can handle gear change hand lever interlock shift rotary drum as required, make the gear shift fork move the room, at this moment, have only vibration damping not have dynamic output.When needing powerful propulsive effort, can utilize speed change, stir first speed driven gear, one grade of driving gear along axial right shift adjusting control fork.When one grade of driving gear female splines in conjunction with two male spliness of speed change, the transmission process of interlock first speed driven gear, castellated shaft, chain wheel, chain, flywheel and trailing wheel claims one grade of speed change.When the needs middling speed is driven a vehicle, can utilize gear change hand lever, adjust control fork, stir one grade of driving gear, first speed driven gear, along axially slippage left, (one grade of driving gear female splines of mechanical interlock breaks away from two male spliness of speed change), interlock castellated shaft, chain wheel, chain, flywheel and trailing wheel were called the second gear speed change when the first speed driven gear engagement pawl combines with the clutch gear associative key.When needs further quicken, can utilize gear change hand lever, adjust control fork, stir third speed drive gear, the third gear driven gear, along axially being moved to the left the associative key of clutch gear (the mechanical interlock first speed driven gear engagement pawl break away from), when third gear driven gear female splines in conjunction with castellated shaft on the revolution ratio of male splines interlock third gear driven gear, castellated shaft, chain wheel, chain, flywheel and trailing wheel claim three class gear shift.When the needs high speed traveling, can utilize gear change hand lever, adjust control fork, stir third speed drive gear, third gear driven gear along axially moving (mechanical interlock to the right, third gear driven gear internal diameter spline breaks away from the keyway of castellated shaft), the engagement pawl of third speed drive gear is combined with fourth gear driving gear combined hole, interlock fourth gear driving gear, the transmission process of fourth gear driven gear, castellated shaft, chain wheel, chain, flywheel and trailing wheel is called fourth gear.This speed change is the gear cluster engagement, interior male splines clutch, method of synchronization speed change; Be characterized in: the gear mobile space is little, flexible operation, and shift is accurate, and anti-impact force is strong.When impulsive force is use up, the damper spring accumulation of energy finishes, the beginning (bounce-back) that releases energy, the interlock front swing arm, following swing arm nipper fan axle, preceding helical teeth fan, preceding floating gear, preceding floating roller are popped one's head in or the rear crotch assembly, parts counter motions such as back sector shaft, back helical teeth fan, back floating gear, back floating roller probe, wherein, preceding floating gear, preceding floating roller probe or back floating gear, back floating roller probe is in the power rotation of keeping in the center under effect.Front and back wheel independent suspension damper mechanism swings up and down all has application force and antagonistic force to vehicle frame.When the front and back damper spring has discharged energy (bounce-back top dead point) just this mechanism finish one action circulation.

The present invention is because external appearance characteristic is that two-supremes one is low; The preceding streamlined reefer housing that is provided with can decompose windstream, so reduced the resistance of wind in driving, can borrow the wind speed power-assisted again in the time of with the wind; Saddle reduces and has changed the angle of pedal power, so enlarged the area of supporting health, alleviates local compression; After the rear platform of backrest type is arranged, so decompose the anxiety of waist, make things convenient for loading again.Become 1 font because dwindle vehicle frame on the structure, increase mobilizable position, so car body has the flexible and elasticity of certain limit in movability, front and back wheel independent suspension vibration damping is the transmission device of leverage in change speed gear box simultaneously, the resistance gauge that the shared unidirectional force of damper spring transmits before and after forming.So front and back wheel independent suspension damper mechanism in conjunction with change speed gear box, has vibration damping power-assisted double action, so this car power-assisted produces naturally, need not operation, do not consume manpower; Two-way power-assisted has reduced the short intermittence of propulsive effort of reciprocal transmission, adds foot-operated power, so this car propulsive effort is one times or half as much again of existing bicycle; Because propulsive effort and minimizing frontal resistance have strong been arranged, so just can improve the driving speed per hour, have had the favorable damping device, so just adapt to various road surfaces.

Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.

First page of Fig. 1 is car body surface structure and the deformation pattern that proposes according to the present invention.

Second page of Fig. 2 is at the common garage in wind sky car state.

Fig. 3 is at wind sky driving states of the present invention

Fig. 4 is that the front wheel independent suspension damper mechanism is dynamic

Fig. 5 is that the rear wheel independent suspension damper mechanism is dynamic

Fig. 6 is the route of air-flow in streamlined reefer housing with the wind the time

Fig. 7 is the route of air-flow outside streamlined reefer housing when facining the wind

The 3rd page of Fig. 8 is product front view of the present invention

Fig. 9 is a change speed gear box front semi-section view

The 4th page of Figure 10 is product change speed gear box section-drawing of the present invention

Figure 11 is the axis partial enlarged drawing

Figure 12 is two partial enlarged drawings of speed change

Figure 13 is Figure 10 A-A direction scheme drawing

Figure 14 is Figure 10 B-B direction scheme drawing

The 5th page of Figure 15 is variable gear neutral position view

Figure 16 is one grade of dynamic diagrammatic sketch of variable gear

Figure 17 is the dynamic diagrammatic sketch of second gear variable gear

Figure 18 is a three class gear shift gear dynamic diagrammatic sketch

Figure 19 is a four-speed gear shift gear dynamic diagrammatic sketch

The 6th page of Figure 20 is change speed gear box and adjacent component view

The 7th page of Figure 21 is the handlebar right side view

Figure 22 is a gear change hand lever assembly diagrammatic sketch

Figure 23 is a speed-changing mechanism diagrammatic sketch directly perceived

Figure 24 is that diagrammatic sketch is looked on the speed change sheave right side

Figure 25 is a speed change sheave front view

Among the figure: 1, vehicle frame; 2, saddle; 3, streamlined reefer housing; 4, rear platform; 5, front fork central siphon; 6, front-wheel; 7, back shelf; 8, trailing wheel; 9, back mirror; 10, preceding damper spring (tower); 11, front fork; 12, damping supporting frame; 13, rear crotch assembly; 14, car ladder; 15, top link; 16, back damper spring (tower); 17, swing arm down; 18, change speed gear box; 19, left and right sides car thigh; 20, chain wheel; 21, chain; 22, flywheel; 23, back brake; 24, taillight; 25, lock pincers; 26, handlebar; 27, preceding sector shaft; 28, axis; 29, back sector shaft; 30, speed change is two; 31, preceding helical teeth fan; 32, back helical teeth fan; 33, clutch gear; 34, first speed driven gear; 35, preceding floating gear; 36, castellated shaft; 37, back floating gear; 38, clutch driven gear; 39, one grade of driving gear; 40, right silk sand bowl; 41, third speed drive gear; 42, fourth gear driving gear; 43, third gear driven gear; 44, oil sealing; 45, left side silk sand bowl; 46, reconcile circle; 47, steel ball; 48, preceding floating roller probe; 49, bearing; 50, bolt; 51, silk shelves; 52, back vent vibration damping bolt; 53, damper spring base; 54, back vibration damping cross bar; 55, thigh dog bolt; 56, nipper fan left side silk bowl; 57, axis shelves; 58, oil discharge screw; 59, sheave; 60, axostylus axostyle; 61, swing arm assembly; 62, rotary drum is decided plate; 63, locating wheel combination; 64, shift line; 65, shift rotary drum; 66, three, fourth gear shift fork; 67, one, second gear shift fork; 68, bolt; 69, staff; 70, damper spring trammel beam; 71, shift handle; 72, refueling bolt; 73, shift wheel assembly; 74, shift cable is regulated; 75, extension spring; 76, headlight; 77, pedal; 78, fourth gear driven gear; 79, ball; 80, brake cable; 81, bolt; 82, pull back spring; 83, gland; 84, grip; 85, back floating roller probe; 86, lock ring; 87, ratchet; 88, O shape spring; 89, cam; 90, sand bowl; 91, back tooth fan left side silk sand bowl; 92, trailing wheel fender; 93, barrel tumbler pin; 94, needle roller; 95, front-wheel fender; 96, hind axle.

First page embodiment illustrated in fig. 1 in, external appearance characteristic is low between the senior middle school of two ends; Preceding height has streamlined reefer housing (3) handlebar (26), and back height has rear platform (4), and middle saddle (2) is lower.This body construction: on the vehicle frame that presents 1 font (1), be provided with saddle (2), damping supporting frame (12), back shelf (7), rear platform (4), change speed gear box (18) are the heavy burden centres.The front wheel independent suspension damper mechanism of forming by front-wheel (6), front fork (11), front fork central siphon (5), top link (15), swing arm (17) down, preceding damper spring parts such as (10) in vehicle frame (1) front portion.Wherein the two ends of top link (15) are bearing between the upper end and damping supporting frame (12) of front fork central siphon (5) with wheel shaft type respectively; The two ends of following swing arm (17) are bearing on front fork central siphon (5) lower end and the preceding sector shaft of change speed gear box (18) with wheel shaft type respectively, and same vehicle frame (1) forms parallelogram.Before damper spring (10) one end bearings in top link (15) and damping supporting frame (12) junction, an end bearing is on following swing arm (17) supporting base, its effect is the impulsive force when alleviating the front-wheel spring, the balance car body with save and preserve energy.At the rear portion of vehicle frame (1) by trailing wheel (8), rear crotch assembly (13), back damper spring (16), etc. the rear wheel independent suspension damper mechanism formed of parts.Wherein fixedly hind axle (96), the other end are fixed on the back sector shaft both sides probe of change speed gear box (18) end of rear crotch assembly (13); One end bearing of back damper spring (16) is in damping supporting frame (12) and shelf (7) junction, back, and an end bearing is on rear crotch assembly (13) supporting base.Its effect is the impulsive force when alleviating trailing wheel (8) spring, balance car body and save and preserve energy.Handlebar (26) is a steering hardware of handling direction of traffic, and is upright to rotation for wheel shaft with the conjuncted fork shaft pipe (5) in the past of front-wheel (6); Damper brake pincers (25), shift handle (71) are arranged on the handlebar (26).At change speed gear box (18) outside left and right sides car thigh (19), pedal (77), chain wheel (20), chain (21) flywheel (22), trailing wheel (8), back brake (23), car ladder (14), be a part that realizes pedal power output and transmission mechanism.Because vehicle frame (1) is 1 font, the soft distortion of car body has the flexible and elasticity of certain limit, shown in the dotted line, is the dynamic structure of front and back wheel independent suspension damper mechanism among the figure.

In second page of Fig. 2 scheme drawing, ordinary bicycle is in the wind sky, and cyclist's back of a bow of can only bending over is carried out against the wind.

In the intention shown in Figure 3, the people that drives relies on the streamlined reefer housing of this product to keep away the hardship of exerting oneself or being subjected to the travel fatigue shaving less.The attitude of driving is easily comfortable, has saved the time in contented and has saved muscle power leisurely and carefree, and its reason is among the figure shown in dotted line and the arrow.

Illustrated in Figure 4, when driving, be not only the difficulty of frontal resistance, the spring of Uneven road wheel, same difficulty is occupied stably.The front and back wheel independent suspension damper mechanism of this car not only can make the people that drives sit steady gracefully, and also laborsaving brisk driving.Show the dynamic of front wheel independent suspension shock attenuation unit among the figure.

Shown in Figure 5 is the dynamic of this product rear wheel independent suspension shock attenuation unit.

In shown in Figure 6, be when driving a vehicle, dotted line is that air-flow is concentrated the back change of direction and stayed for some time and passes through in streamlined reefer housing (3) among the figure, has hindered wind speed, has produced thrust with the wind, by the wind-force driving labour-saving that is bound to.

In the intention shown in Figure 7, streamlined reefer housing (3) front end point is and low, and rear end circle of wide high formation is sloping, and the wind that head-on blows is passed through by slick and sly three directions of decomposition, is subjected to resistance little.The direction of air-flow shown in the dotted line among the figure.

The 3rd page shown in Figure 8 be this patent product front view, present the width and the macroscopic features of this car body; Streamlined reefer housing among the figure (3) has the shield of certain limit, its back have front-wheel (6), front fork (11), front fork central siphon assembly (5), handlebar (26), lock pincers (25), brake cable (80), etc. the steering unit of braking in a turn.Back mirror (9) provides convenience for the situation that the people that drives understands after one's death.Rear platform (4) will be higher than saddle (2).

In illustrated in Figure 9, axis (28) first half is shown change speed gear box (18) internal works position, and lower part is the outer situation of change speed gear box (18) shell; Left and right sides car thigh (19) is assemblied on the probe of two ends, as the crank of pedal power.In axis (28) left side is to reconcile circle (46) steel ball by left side silk sand bowl (45) to cooperate lower support on left half housing of change speed gear box (18), is to cooperate lower support on castellated shaft (36) inner diameter wall by steel ball on the right side.And castellated shaft (36) right side be cooperation lower support by right silk sand bowl (40) and steel ball on right half housing of change speed gear box (18), probe assembles chain wheel (20).The shift rotary drum (65) parallel with axis (18), left side assembling rotary drum locating plate (62), barrel tumbler pin (93), the right side is to be bearing on half housing of right side by axostylus axostyle (60), take back at the middle part be one, second gear shift fork (67), take over be three, fourth gear shift fork (66) iso-variable velocity transmits parts.On change speed gear box (18) housing, be provided with refueling bolt (72), oil discharge screw (58) is arranged down; Positive middle and upper part is that vehicle frame (1) both sides are damping supporting frame (12).

Shown in the 4th page of Figure 10, axis (28) connects half housing about change speed gear box (18), the two ends probe assembles left and right sides car thigh (19) respectively, in the left side be by left side silk sand bowl (45), reconcile circle (46), steel ball (47), axis shelves (57) the cooperation lower support in left half housing of change speed gear box (18), be to be bearing on the inwall of castellated shaft (36) on the right side by steel ball.And the middle part takes back and is provided with supporting clutch gear (33) mechanism, and concrete structure is such; Axis (28) cam (89) herein is provided with ratchet (87) and O shape spring (88), and the cooperation of the same ratchet of clutch gear (33) internal diameter sawtooth (87) is to transmit the foot-operated power of unidirectional crank.Be that cooperation by silk shelves (51), steel ball (47) is bearing on the axis (28) in its left side, the right side is to cooperate lower support on cam (89) right-hand axis shelves by steel ball.Clutch gear (33) left end face is a sawtooth, and the right side is a male splines, and external diameter is a gear.The left end internal diameter of castellated shaft (36) is to be bearing on the axis (28) by steel ball (47), external diameter is a male splines, the right side is the axle shelves, steel ball (47) and right silk sand bowl (40) cooperation are bearing in half housing of change speed gear box (18) right side, and right-hand member leans out change speed gear box (18) outer assembling chain wheel (20) and locked by lock ring (86).Two of the speed changes (30) that same axis (28) is parallel, two ends are bearing in about change speed gear box (18) in half housing by bearing (49) respectively, and with the clutch driven gear (38) of this consubstantiality, the left side is a toothed disc, external diameter tooth, engagement clutch gear (33).Outside the right side spline section of two of speed changes, cooperate supporting with fourth gear driving gear (42) by needle roller (94).At change speed gear box (18) foremost, the two ends of the preceding sector shaft (27) that same axis (28) is parallel, respectively by left side silk sand bowl (56) or sand bowl (90), ball (79) cooperates down, be bearing in half housing front end about change speed gear box (18), the centre is to be exposed at housing annular knurl straight burr bar outward, is the junction of following swing arm, the preceding helical teeth fan (31) of consubstantiality is in left side change speed gear box (18), the same floating gear (35) engagement; The internal diameter of preceding floating gear (35) cooperates a preceding floating roller probe (48) in a spiral manner, this probe is set on axis (28) left side, same clutch gear (33) is adjacent, the right side is a toothed disc, certain activity space is arranged, when current floating gear (35) was engaged rotation, it had two mode of motion; The one, rotation, the 2nd, power is to moving.Preceding floating roller probe (48) moves greater than rotation, and its effect is promptly torsional forces to be delivered to clutch gear (33) fast, meets obstruction and leaves at once.Wherein pull back spring (82) also has certain effect.The back sector shaft (29) that runs through change speed gear box (18) rearmost end has three to touch three features of revealing: it is annular knurl straight burr probe rod that two ends are exposed at change speed gear box (18) outer, is the junction of rear crotch assembly.The mast that the centre exposes outside leaves unused, in this both sides is respectively to be cooperated at ball (79) by back tooth fan left side silk sand bowl (91) or sand bowl (90), be bearing in about change speed gear box (18) on half housing, the back helical teeth fan (32) of consubstantiality is that design is in change speed gear box (18), with back floating gear (37) engagement.Be provided with oil sealing (44) at axle and housing intersection.The internal diameter of back floating gear (37) is a spiral way supporting back floating roller probe (85), and this probe right side is a toothed disc, and internal diameter is set on the left side of speed change two (30), and certain activity space is arranged, and is adjacent with clutch driven gear (38).When back floating gear (37) rotation, it has two mode of motion: the one, and the torsional forces of rotation, the 2nd, power is to moving.Back floating roller probe (85) moves greater than rotation, and its effect is promptly torsional forces to be passed to clutch driven gear (38) fast in a short period of time, meets obstruction and leaves at once.Left and right sides car thigh power is to be transmitted into by the cam (89) on the axis (28), ratchet (87) engagement clutch gear (33) internal diameter sawtooth.Speed-changing mechanism is more than half portion in change speed gear box (18) housing among the figure, mainly be by activity between speed change two (30) and the castellated shaft (36) the gear cluster of three groups of different rotating speeds ratios, diaxon all has spline zone, polished rod zone separately.In the left side of diaxon is that one grade of driving gear (39) engagement first speed driven gear (34) becomes other revolution ratio of level; The middle part is that third speed drive gear (41) engagement third gear driven gear (43) becomes other revolution ratio of level; Fourth gear driving gear (42) engagement fourth gear driven gear (78) becomes other revolution ratio of level.Wherein one, the 3rd gear group is under the shift fork controls, can be along axial sway.The residing position of first speed driven gear among the figure (34) is the spline engagement on engagement pawl and clutch gear (33) right side, directly interlock castellated shaft (36), chain wheel (20).

The 5th page shown in Figure 15, each driving gear on the speed change two (30) and castellated shaft (36) are gone up corresponding driven gear and all are in engagement, all have a gear to be in the gear freely to rotate but respectively organize.Be positioned as one grade of driving gear (39) in the polished rod zone of speed change two (30); Third gear driven gear (43) is positioned in castellated shaft (36) the polished rod zone; Fourth gear driving gear (42) is to be bearing in two (30) right sides of speed change by needle roller.Although speed change two (30) is rotated, moment of torsion is not delivered on the castellated shaft (36), and dark moving parts among the figure do not have power output, and at this moment the gear meshing state is called neutral gear.

Shown in Figure 16, one grade of driving gear (39), first speed driven gear (34) engagement, move to the right with the shift fork of being transferred the files, when the female splines of one grade of driving gear (39) enters in the spline zone, interior male splines combination, the three aspect torsional forcess that speed change two (30) is assembled pass through at this, deceive shown in the thick-line arrow among the figure, be with revolution ratio, interlock first speed driven gear (34), castellated shaft (36).At this moment the gear meshing state is called one grade.

Shown in Figure 17, one grade of driving gear (39) engagement first speed driven gear (34), shift to a left side with the shift fork of being transferred the files, make the female splines of one grade of driving gear (39) leave the spline zone and enter the polished rod zone, and the same clutch gear of engagement pawl (33) the right side spline combination of first speed driven gear (34), the direct interlock of three aspect torsional forcess of Ju Jiing already. castellated shaft (36).Among the figure shown in the thick black line arrow stressed dynamically.At this moment not having has the direct transmit mode of revolution ratio to be called second gear

Shown in Figure 180, third speed drive gear (41) engagement third gear driven gear (43) moves left (because one grade of driving gear of mechanical chain (39) with the shift fork of being transferred the files, first speed driven gear (34) moves to original position simultaneously, make the spline of the engagement pawl disengaging clutch gear (33) of first speed driven gear (34)), when the female splines of third gear driven gear (43) enters the spline zone, accumulate in three aspect torsional forcess on the third speed drive gear (41) already, by third gear driven gear (43) female splines interlock castellated shaft (36).Among the figure shown in the thick black line arrow stressed dynamically, at this moment the gear meshing state is called third gear.

As shown in Figure 19, third speed drive gear (41) third gear driven gear (43) moves to the right with the shift fork of being transferred the files, and makes third gear driven gear (43) leave the spline zone and gets back to the polished rod zone.When the engagement pawl of third speed drive gear (41) with fourth gear driving gear (42) combined hole combination, accumulate in three aspect torsional forcess of third speed drive gear (41), use fourth gear driving gear (42) with fourth gear driven gear (78) engagement revolution ratio interlock castellated shaft (36).Among the figure shown in the thick black line direction of arrow stressed dynamically, at this moment gear engagement states is called fourth gear.

In the 6th page of Figure 20, the same change speed gear box of vehicle frame (1) (18) is fixed as one by bolt (81); One end of following swing arm (17) is fixed on the preceding sector shaft middle part of change speed gear box (18) front end, the lever that the same helical teeth fan (31) (dotted portion among the figure) becomes one.The two ends of preceding damper spring (10) are bearing in respectively between damping supporting frame (12) and the following swing arm (17), and shape is tower, up-small and down-big, and the end has sliding hall block on the damper spring base (53), and there is damper spring trammel beam (70) centre.On the figure right side, an end of rear crotch assembly (13) is assemblied in sector shaft (29) two ends, the left and right sides, back by gland (83) and bolt (50), the lever that back helical teeth fan (32) (dotted portion among the figure) becomes one in the same change speed gear box (18).The two ends of back damper spring (16) are bearing in respectively between damping supporting frame (12) and the rear crotch assembly (13), form tower, up-small and down-big, the end have damper spring base (53) and the back vibration damping cross bar (54), there is damper spring trammel beam (70) centre.During change speed gear box among the figure (18) left side local section is showed, rotary drum locating plate (62), locating wheel combination (63), swing arm assembly (61), staff (69) are the parts that gear shift mechanism is handled in change speed gear box (18) housing, are by the fine moving sheave (59) of two-way shift line (64) outside housing.

In the 7th page of Figure 22, handle shifting apparatus on handlebar (26) right side, by shift handle (71), shift wheel assembly (73), shift cable regulate (74), shift line (64) is formed, operation order is: one grade press down, two, three, carry on the fourth gear, neutral gear one grade with second gear in the middle of.

Claims (10)

1, in the simple machine of riding instead of walk with wheel, the second generation particularly, front and back wheel independent suspension vibration damping, two power-assisted, variable speed bicycle device, this device is equipped with saddle (2) in the upper end of the vehicle frame that presents 1 font (1), there are damping supporting frame (12), back shelf (7) in the middle part, rear platform (4), lower end are equipped with change speed gear box (18); The front portion is by front-wheel (6), the front wheel independent suspension damper mechanism that front fork (11), front fork central siphon (5), streamlined reefer housing (3), handlebar (26), top link (15), swing arm (17) down, preceding damper spring (10) are formed; The rear wheel independent suspension damper mechanism that the rear portion is made up of trailing wheel (8), rear crotch assembly (13), back damper spring (16); Change speed gear box has in (18), axis (28), preceding sector shaft (27), back sector shaft (29), speed change two (30), castellated shafts (36), the two ends that it is characterized in that top link (15) respectively with the wheel shaft mode be bearing in the upper end of front fork central siphon (5) and damping supporting frame (12) preceding between, one end of following swing arm (17) is bearing in the lower end of front fork central siphon (5) in the wheel shaft mode, one end is fixed on preceding sector shaft (27) middle part, the same helical teeth fan (31) becomes lever machinery, form parallel four limit row with vehicle frame (1), floating gear (35) before preceding helical teeth fan (31) engagement; Rear crotch assembly (13) one ends are hind axle (96) fixedly, an end be fixed on back sector shaft (29) about on the probe, become lever machinery with back helical teeth fan (32), floating gear (37) after back helical teeth fan (32) engagement.

2, device according to claim 1, its special card be, the appearance that two-supremes one is low, and the front portion is provided with streamlined reefer housing (3), back mirror (9), headlight (76), handlebar (26); The rear platform at rear portion (4) is to be assemblied on the back shelf (7), is higher than saddle (2) and forms chair type.

3, ask 1 described device according to right, it is characterized in that, grip on the right side of handlebar (26) (84), lock pincers (25), brake cable (80) is the brake operation part, shift handle (71), shift wheel assembly (73), it is the manual control variable part that shift cable is regulated (74), be by two-way shift line (64), interlock sheave (59), staff (69), swing arm assembly (61), rotary drum locating plate (62), barrel tumbler pin (93), under the control of locating wheel combination (63), the rotation shift rotary drum (65) in stage, make one, second gear shift fork (67) or three, fourth gear shift fork (66) moves axially one grade of driving gear (39) first speed driven gear (34) or third speed drive gear (41) third gear driven gear (43), can realize one grade, neutral gear, two, three, four-speed gear shift.

4, device according to claim 1, it is characterized in that, there is steel ball (79) in preceding sector shaft (27) left side, the cooperation of nipper fan left side silk bowl (56) is bearing on left half housing of change speed gear box (18), the same helical teeth fan (31) is fixed into one, the middle part is an annular knurl straight burr cylinder, and the right side is that the cooperation by steel ball (79), sand bowl (90) is bearing in right half housing of change speed gear box (18); The back sector shaft (29) that runs through change speed gear box (18) rearmost end, two ends annular knurl straight burr cylinder leans out half housing about change speed gear box (18) respectively, the centre exposes outside, in the left side is that ball (79) back tooth fan left side silk sand bowl (91) is bearing on half housing of change speed gear box (18) left side, back helical teeth fan (32) successively is in change speed gear box (18), and the right side is that the cooperation by ball (79) sand bowl (90) is bearing on right half housing of change speed gear box (18).

5, device according to claim 1, it is characterized in that running through axis (28) the both sides probe of change speed gear box (18), assembling left and right sides car thigh (19), in the left side is by axis shelves (57), steel ball (47), the cooperation lower support of left side silk sand bowl (45) is on left half housing of change speed gear box (18), reconcile the cooperation degree of tightness by reconciling circle (46), the middle part side of taking back is by cam (89), ratchet (87), the 0 same clutch gear of shape spring (88) (33) internal diameter sawtooth cooperates, can move the mechanism that transmits the foot-operated power of unidirectional crank, be to be bearing on the inner diameter wall of castellated shaft (36) by steel ball on axis (28) right side.

6, according to claim 1,3 described devices, the two ends that it is characterized in that speed change two (30) are to be bearing in about change speed gear box (18) on half housing by bearing (49), clutch driven gear (38) right side on this, running through one grade of driving gear (39), third speed drive gear (41), fourth gear driving gear (42), in this section axle, be divided into the polished rod zone, the spline zone, one grade of driving gear (39) engagement first speed driven gear (34), internal diameter is a spline, can move axially, third speed drive gear (41) engagement third gear driven gear (43), internal diameter is a spline, can move axially, fourth gear driving gear (42) is the right side that is bearing in this by needle roller (94), meshes with fourth gear driven gear (78).

7, according to claim 1,3,5,6, described device, it is characterized in that castellated shaft (36) left side internal diameter is to be bearing on axis (28) the sand shelves by steel ball (47), the external diameter left side is the spline zone, the right side is the polished rod zone, the first speed driven gear (34) that is run through, third gear driven gear (43) is by movable in these two zones under the shift fork controls, the same castellated shaft of right side fourth gear driven gear (78) (36) is conjuncted, on its right side by the axle shelves, steel ball, right silk sand bowl (40) is bearing on right half housing of change speed gear box (18), the part assembling chain wheel (20) that leans out, fixing by lock ring (86).

8, according to claim 1,4,5,6 described devices, helical teeth is fanned (31) before it is characterized in that preceding floating gear (35) engagement, floating roller probe (48) before internal diameter cooperates with spiral, this probe is assemblied in the left side of axis (28) in the wheel shaft mode, the right side is that toothed disc is adjacent with clutch gear (33), certain space that moves axially is arranged, and pull back spring (82) has certain effect herein; Back floating gear (37) engagement back helical teeth fan (32), internal diameter with spiral cooperation after floating roller probe (85), this probe is assemblied in the left side of speed change two (30) in the wheel shaft mode, adjacent with clutch driven gear (38), be separated by by pull back spring (82), certain space that moves axially is arranged, and this probe its right end face is a toothed disc.

9, according to claim 1,5,6,7,8, described device, it is characterized in that clutch gear (33) engagement clutch driven gear (38), its left side is a sawtooth, the right side is a spline, adjacent with first speed driven gear (34), the internal diameter middle part is a sawtooth, and there is silk shelves (51) steel balls (47) supporting on a left side, and there are sand shelves and steel ball (47) supporting in the right side.

10, device according to claim 1, it is characterized in that preceding damper spring (10) one end bearings are preceding at damping supporting frame (12), an end bearing is on following swing arm (17) supporting base, and small top and big bottom is tower, under damper spring base (53) is arranged, middle perpendicular have a damper spring trammel beam (70); Back damper spring (16) shape is tower, up-small and down-big, damper spring base (53) is arranged, the middle perpendicular damper spring trammel beam (70) that has down, its end bearing is behind damping supporting frame (12), and an end bearing is on the back vibration damping cross bar (54) of rear crotch assembly (13).

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