CN2885708Y - Speed-changeable folding bicycle - Google Patents
Speed-changeable folding bicycle Download PDFInfo
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- CN2885708Y CN2885708Y CN 200620033782 CN200620033782U CN2885708Y CN 2885708 Y CN2885708 Y CN 2885708Y CN 200620033782 CN200620033782 CN 200620033782 CN 200620033782 U CN200620033782 U CN 200620033782U CN 2885708 Y CN2885708 Y CN 2885708Y
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Abstract
The transmission machine of the variable-speed gear and folding bicycle employs a middle axis planet machine with a middle axis ratchet wheel meshed with the variable-speed star-shape framework. Three different sun-shape gears are fixed in the external axis assembled in the middle axis and the variable-speed star-shape framework is invaginated with three ratchet wheel annular gears. The axis of three variable-speed star-shape hinge the variable-speed star-shape framework, located correspondingly between three ratchet wheel annular gears and sun-shape gears and go into mesh with them. The middle axis sprocket wheels are installed immovably in the external axis. The intermediate axis housing is installed movably on both sides of variable-speed side axis on which clutch detent is fixed. The rotation removable side axis causes that a certain clutch detent and a certain ratchet wheel annular gears are in mesh and fixation. Variable-speed star-shape in mesh with the rotation removable side axis gear rotates, driving the sun-shape gears, the external axis and the sprocket. The speed can be varied because of the diameter of the sun-shape gears. The bicycle has small sprocket wheels with the transmission ratio 1:6 and is portable for riders. To drive untiredly, the bicycle is also loaded with the gravity advancement machine and the telescopic footplate. The lock devices for front and back of the bicycle are controlled expediently and rapidly. The bicycle can be trundled after folding when the wheel lock and the middle axis bottom rotary wheel combined.
Description
(1) technical field
The utility model relates to the bicycle field, is specially a kind of speed change folding bicycle.
(2) technical background
Folding bicycle is little because of its volume after folding, is convenient to carry, carry, store, and welcomes so be subjected to the customer.And its used raw MAT'L is few, and energy consumption is low, cost is low, and the manufacturing of folding bicycle also has tangible economic benefit and social effect.
But also there are some insoluble problems in the steamboat folding bicycle of present traditional chain disc type transmission.
At first the folding bicycle wheel is generally less, and it is taken turns the footpath and only is 1/2 of common 26,28 inches bicycle quicks footpath, traditional chain drum chain wheel driving mode, and transmission speed ratio is limited.In order to improve the rotating speed of steamboat, can only add big chain plate, but because of factors such as transmission, outward appearance and safety, chain drum can not be too big.So existing steamboat folding bicycle, transmission speed ratio is lower, is stepping on an equal basis under the rhythm and pace of moving things, and the small-wheel bicycle speed of a motor vehicle of riding is quick not as common big wheel bicycle.The small-wheel bicycle that speed-changing mechanism is arranged also can only be regulated the speed downwards.In order to strengthen the speed of a motor vehicle, can only improve and step frequency, rider's fatiguability also influences safety.
Secondly, little because of the wheel footpath, it is bigger than ordinary bicycle to be subjected to the road surface to influence jolting of BMX (Bicycle Motocross) in riding, and it is comfortable and steady that influence drives.When pavement conditions was relatively poor, small-wheel bicycle was advanced very difficult.
In addition, though the small-wheel bicycle volume after folding is little, in light weight, can only be portable or vehicle-mounted after folding, be in the limit movement state because of folding its trailing wheel of back and footstep mechanism, and neat front and back wheel is difficult to carry out.For the weakling, as old man, women, child, moving of folding bicycle is not light yet.And the folding operation mode of folding bicycle is not free and relaxed yet, bend to lock component wear near ground-surface bottom of frame operation because of the vibrations of riding also make the joint of front and back vehicle frame easily, and vehicle frame engages unstable before and after causing.
These all are that present folding bicycle needs improvements.
(3) utility model content
The purpose of this utility model is a kind of speed change folding bicycle of design, adopts the axis planet speed change mechanism, strengthens transmission speed ratio, and the gravity propulsive mechanism also is installed simultaneously, makes the wave force in riding change propelling thrust into.
Speed change folding bicycle of the present utility model, comprise the front vehicle frame that front-wheel and handlebar are installed, trailing wheel is installed, footstep mechanism, the back vehicle frame of transmission device and vehicle seat, footstep mechanism connects axis, the front and back vehicle frame connects through blocking device, chain connects the axis sprocket wheel and its transmission device of rear wheel sprocket is an axis planet speed-change transmission device, install unidirectional axis ratchet on the axis in the intermediate axle housing, the speed change star frame engagement that the axis ratchet is outer with being placed in axis, the sleeve that the bearing fit with it of coaxial assembling is arranged on the axis, install the sun tooth of three different-diameters on the sleeve, three ratchet inner circular tooths are set on the speed change star frame, ring has the internal tooth that matches with speed change star tooth in it, and its outer rim has ratchet.The axle of three groups of speed change star teeth is articulated in speed change star frame, three every group speed change star teeth be between cooresponding ratchet inner circular tooth, the sleeve sun tooth and with the two engagement.Sleeve one end installs the axis sprocket wheel.The speed change off-axis is parallel with axis, be positioned at axis rear, its two ends removable mounting in intermediate axle housing, have corresponding to three ratchet inner circular tooths on it, that match, that be positioned at different radial angles clutch ratchet with its ratchet, the end that the displacement off-axis stretches out intermediate axle housing has the variable-speed operating control handle, and the rotatable displacement off-axis of using makes certain clutch ratchet and the engagement of ratchet inner circular tooth on it.
Axis drives speed change star frame and rotates, and during the ratchet engagement of clutch ratchet and one of them ratchet inner circular tooth, this inner circular tooth is fixed, and changes sun tooth and sleeve that drive is engaged with, sleeve drive sprocket, trailing wheel with its ingear speed change star tooth spiral.The different-diameter of three sun teeth of cause reaches the speed change purpose.
The affixed shift cam axle of speed change off-axis one end, install the spacing chuck of speed change on the shift cam axle, positioning spline is arranged on it, the positioning key that is positioned at different radial angles that matches with three clutch ratchets is arranged on the axis housing, when certain clutch ratchet and the engagement of ratchet inner circular tooth, cooresponding with it positioning key is stuck in the keyway of spacing chuck.When needing speed change, twisting variable-speed operating control handle makes that the speed change off-axis rotates, positioning key breaks away from spacing chuck, change the shift cam axle orientation angle, select other clutch ratchet engagement, realize the variation of transmission speed ratio.
This speed change folding bicycle has adopted planet gearing system, under the situation that the big spoke of foot-operated sprocket diameter descends, even under foot-operated sprocket wheel and situation that the rear wheel sprocket wheel directly equates substantially, transmission speed ratio can reach 1 to 6, satisfied front and back wheel wheel footpath and only be the requirement of the transmitting ratio that 10～14 inches small-wheel bicycle runs at high speed, to ride fast light.The transmitting ratio of selecting during speed change is by 1 to 1 to 1 to 7, is beneficial to different people, in the selection of different road conditions.Because the comparable general folding bicycle of diameter of the foot-operated sprocket wheel of this car reduces greatly, thereby stay sufficient design space for vehicle appearance and transmission unit design.
This car also is equipped with the gravity propulsive mechanism, the fluctuation that utilizes its trailing wheel to produce in motion, the leverage of caudal furca and pressure spring by supporting wheels, gravity propulsion system in the interlock axis, unidirectional reciprocal driving gravity propulsive mechanism, the interlock planet gearing system drives bicycle and moves ahead, the vertical fluctuation power when travelling of making full use of changes the propulsive force of vehicle into, and pressure spring also makes the fluctuation when riding relax.Because of this gravity propulsive mechanism and planet speed change mechanism in axis coaxial cooperation, integrated form interaction, increased substantially the caudal furca lever of supporting wheels and the motion kinetic potential and the sensitivity of gravity propulsive mechanism.
This car is furnished with flexible foot-operated arm, the bicyclist during to the foot-operated arm application of force foot-operated arm extend the increase arm of force automatically, otherwise foot-operated arm shorten automatically, reduce stroke, make the bicyclist laborsaving, improve driving efficiency.
The front and back vehicle frame blocking device of this car launches reliable and stable locking front and back vehicle frame under the riding condition at car body, and auto-lock function is arranged, and guarantees safety and stability.And this blocking device was controlled fast convenient, need not to bend over to bend, and can finish the folding or recovery of car body at 1,2 second.
The folding back of this car also have and the wheel lock will and neat front and back wheel link closely, make this moment the foot-operated arm of axis be in neutral state, front and back wheel is carried out before and after can be free, is convenient to moving of this car.Bicycle after being equipped with a cardan wheel in the axis bottom, folding promptly forms the small-sized go-cart that can carry certain volume and weight.
After this car is folding, but the collapsible leg stable support car body of installing on its front and back wheel, foot-operated arm and the trailing wheel, and the shelf on its trailing wheel are that seat, vehicle seat are that backrest constitutes seat, for the rest seating.
(4) description of drawings
Fig. 1 is this speed change folding bicycle embodiment overall schematic;
Fig. 2 divides planet speed-changing mechanism and gravity propulsive mechanism scheme drawing for this speed change folding bicycle embodiment middle shaft part;
Fig. 3 is Fig. 2 A to view:
Fig. 4 is this speed change folding bicycle embodiment caudal furca and gravity propulsive mechanism connection diagram;
Fig. 5 is the flexible foot-operated arm configuration scheme drawing of this speed change folding bicycle embodiment;
Blocking device schematic top plan view when Fig. 6 unlocks for vehicle frame before and after this speed change folding bicycle embodiment;
The blocking device cross-sectional view that Fig. 7 locks timer-operated parallel car body y direction for vehicle frame before and after this speed change folding bicycle embodiment;
Fig. 8 is this speed change folding bicycle embodiment and wheel lock lock-out state schematic top plan view;
Fig. 9 is this speed change folding bicycle embodiment and wheel lock lock-out state schematic side view;
Figure 10 is the scheme drawing of this speed change folding bicycle embodiment folded state as hand barrow;
Figure 11 is the scheme drawing of this speed change folding bicycle embodiment folded state as seat.
(5) specific embodiment
Speed change folding bicycle embodiment of the present utility model as shown in Figure 1, comprise the front vehicle frame that front-wheel and handlebar are installed, the back vehicle frame of trailing wheel, footstep mechanism, transmission device and vehicle seat is installed, footstep mechanism connects axis, the front and back vehicle frame connects through blocking device, and chain connects axis sprocket wheel and rear wheel sprocket.Its transmission device is an axis planet speed-change transmission device 4, and foot-operated arm also is equipped with gravity propulsive mechanism 9 for foot-operated arm telescoping mechanism 2.
The axis planet speed-change transmission device 4 of this car embodiment as shown in Figure 2, install unidirectional axis ratchet 4-3 on the axis 4-2 in the intermediate axle housing 4-1, the speed change star frame 4-4 engagement that axis ratchet 4-3 is outer with being placed in axis 4-2, the sleeve 4-8 that the bearing fit with it of coaxial assembling is arranged on the axis 4-2, install the sun tooth 4-7 of three different-diameters on the sleeve 4-8, three ratchet inner circular tooth 4-6 are set in outside the speed change star frame 4-4, ring has the internal tooth that matches with speed change star tooth 4-5 in it, and its outer rim has ratchet.The axle of three groups of speed change star tooth 4-5 is articulated in speed change star frame 4-4, three every group speed change star tooth 4-5 be between cooresponding ratchet inner circular tooth 4-6, the sleeve sun tooth 4-7 and with the two engagement.Sleeve 4-8 one end installs axis sprocket wheel 4-9.Speed change off-axis 41-3 is parallel with axis 4-2, be positioned at axis 4-2 rear, its two ends removable mounting in intermediate axle housing 4-1, has corresponding to three ratchet inner circular tooth 4-6 on it, with its ratchet clutch ratchet that match, that be positioned at different radial angles 41-4, as shown in Figure 3.The end that displacement off-axis 41-3 stretches out intermediate axle housing 4-1 has variable-speed operating control handle 41-2, and the rotatable displacement off-axis 41-3 that uses makes certain clutch ratchet 41-4 and the ratchet inner circular tooth 4-6 engagement on it.The affixed shift cam axle of speed change off-axis 41-3 one end installs the spacing chuck 41-1 of speed change on the shift cam axle, positioning spline is arranged on it, and the positioning key that is positioned at different radial angles that matches with three clutch ratchet 41-4 is arranged on the intermediate axle housing 4-1.
The gravity propulsive mechanism 9 of this car embodiment is shown in Fig. 1,2 and 4, and caudal furca 5 rear ends and rear vehicle shaft are affixed, and front end and intermediate axle housing 4-1 are hinged, and pressure spring 8 connects caudal furca 5 front middle parts and vehicle seat underframe, caudal furca 5 front end bottom sides hinged angle arm 9-1.Gravity propulsive mechanism 9 is installed in the intermediate axle housing 4-1, comprises gravity single direction ratchet 9-4, gravity pinion carrier 9-2, gravity planet tooth 9-5, circle tooth 9-6, gravity sun tooth 9-3.The gravity pinion carrier 9-2 that axis 4-2 in the intermediate axle housing 4-1 goes up coaxial package gravity single direction ratchet 9-4 and is engaged with, gravity pinion carrier 9-2 goes up uniform hinge and adorns three gravity planet tooth 9-5, circle tooth 9-6 be enclosed within axis 4-2 outer with intermediate axle housing 4-1 Joint, gravity planet tooth 9-5 be between the gravity sun tooth 9-3 that encloses tooth 9-6 and be set in axis 4-2 and with the two engagement.Gravity sun tooth 9-3 is connected with variable speed planetary frame 4-4.Front end and the gravity single direction ratchet 9-4 of angle arm 9-1 are hinged.
When the trailing wheel vertical tremor under pressure spring 8 effect, caudal furca 5 front end up-and-down movements, the angle arm 9-1 crank motion that makes and join, drive gravity single direction ratchet 9-4 unidirectional rotation, gravity single direction ratchet 9-4 drives the gravity pinion carrier 9-2 that is engaged with and rotates, 9-6 fixes because of the circle tooth, and the gravity planet tooth 9-5 on the gravity pinion carrier 9-2 rotates and drives the gravity sun tooth 9-3 that is engaged with, and rotates thereby drive variable speed planetary frame 4-4.By planet speed change mechanism 4 with weight transfer axis sprocket wheel, drive trailing wheel.
The foot-operated arm of this car embodiment shown in Fig. 1,2,5, comprises foot-operated arm arm body 2-1, rocker 2-2, slide bar 2-5 for foot-operated arm telescoping mechanism 2; Foot-operated arm arm body 2-1 one end and axis 4-2 are affixed, drive axis 4-2 and rotate.Arm body 2-1 is a housing, rocker 2-2 is positioned at arm body 2-1, affixed, relative in line two rotating shaft 2-3s parallel before and after the rocker 2-2 outer end with axis 4-2, rotating shaft 2-3 is inserted in the axis hole of the arm body 2-1 other end, rotating shaft 2-3 can freely rotate in axis hole, and rocker 2-2 outer end inner wall installs sliding sleeve 2-4, and slide bar 2-5 is inserted in this sliding sleeve 2-4, there is straight-tooth its inner, and stretch out from arm body 2-1 stomidium slide bar 2-5 outer end, installation foot pedal 2-6.Slide bar 2-5 and sliding sleeve 2-4 bearing fit.The inner equipped duplex pendulum tooth 2-7 of rocker 2-2 installs arc tooth 2-8 in the arm body 2-1, duplex is put one and the arc tooth 2-8 engagement of tooth 2-7, and another connection meshes with the straight-tooth of slide bar 2-5 the inner.Slide bar 2-5 also is connected with the retracing spring 2-9 that an end is fixed in arm body 2-1.Be installed with one or more track adjusting wheel 2-10 between slide bar 2-5 and the rocker 2-2.
, slide bar 2-5 foot-operated arm arm body 2-1 be enclosed within it outside stressed as stretcher 2-6 rotates around axis 4-2, simultaneously, slide bar 2-5 serves as the axle swing with rocker 2-2 with rotating shaft 2-3, make being associated in to roll on the arc 2-8 tooth and making its rotation of duplex pendulum tooth 2-7 of rocker 2-2 the inner, therefore another connection of duplex pendulum tooth 2-7 outwards stirs the straight-tooth of slide bar 2-5 the inner, make slide bar 2-5 from the stomidium of arm body 2-1 to overhanging, because of arc tooth 2-8 and straight-toothed automatic spacing, slide bar 2-5 outreach remains on preseting length.When foot-operated arm moves to second half, slide bar 2-5 is in idle state, and the stretching tooth of retracing spring 2-9 resets, i.e. slide bar 2-5 retraction moves after straight-toothed and also drives duplex pendulum tooth 2-7 and rotate and make rocker 2-2 and slide bar 2-5 return.During slippage, this track adjusting wheel 2-10 rolls between slide bar 2-5 and rocker 2-2 before and after the slide bar 2-5, overcomes the side direction torsion that stretcher 2-6 produces when stressed, to reduce the friction of slide bar 2-5 side direction, guarantees the geometric accuracy of reciprocally swinging.
The front and back vehicle frame blocking device 10 of this car embodiment is as Fig. 1,6, shown in 7, comprise the lock body 10-1 that is installed in vehicle frame abutting end behind this car, be installed in the locking closure 10-3 of front vehicle frame 1 abutting end, locking closure 10-3 is hinged with the hinge 10-2 that is installed in the back vehicle frame, lock body 10-1 is a housing, the axle of unblanking of lock body 10-1 internal fixation is gone up the gear 10-7 that unblanks is installed, the dead bolt of two cylindricality lock pin 10-6 respectively up and down up and down, lock pin 10-6 is connected with the end of last lower spring 10-5 respectively up and down, the other end of last lower spring 10-5 is fixed in lock body 10-1, the affixed upper rack in below of the lock pin 10-6 of top, the affixed tooth bar down in the top of the lock pin 10-6 of below, tooth bar is engaged with at the left and right sides of the gear 10-7 that unblanks respectively up and down.An outer end of unblanking is equipped with unlocking handle 10-4.Locking closure 10-3 has parallel upper and lower covers, and the front end of upper and lower covers is mutually permanently connected and is affixed with front vehicle frame 1, and rear end and hinge 10-2 are hinged.The lockhole that matches with the dead bolt on lock pin 10-6 top is arranged on the upper and lower covers, and when locking closure 10-3 turns to its upper and lower covers when being positioned at lock body 10-1 upper and lower, the dead bolt of lock pin 10-6 inserts in the lockhole of locking closure 10-3 upper and lower covers.
Rotate unlocking handle 10-4, the gear 10-7 that unblanks rotates thereupon, the tooth bar up and down that is engaged with moves to upper and lower synchronously, the lock pin 10-6 that drives the top that is connected with it moves down, the lock pin 10--6 of below moves synchronously, dead bolt is deviate from the lockhole of locking closure 10-3 synchronously up and down, unlock, front vehicle frame 1 can be transferred folding to 180 degree backward.When needing to launch, front vehicle frame 1 is rotated return forward, when the upper and lower covers of locking closure 10-3 is got back to lock body 10-1 upper and lower, the dead bolt of lock pin 10-6 enters in the lock body 10-1 compressing of locking closure 10-3 upper and lower covers forward position up and down, upward lower spring 10-5 is compressed, when lockhole is relative with dead bolt, under spring 10-5 effect, dead bolt inserts in the lockhole, and keeps lock-out state under spring 10-5 effect.
Level and smooth for combining of locking closure 10-3 and lock body 10-1 moved, be angular plane surface or oblique cambered surface in the face of locking closure 10-3 moves into direction dead bolt one side, the upper and lower covers of locking closure 10-3 has the arcuate guide edge that upwarps of matching with dead bolt towards the side edge of lock body 10-1.When the upper and lower covers of locking closure 10-3 turned to the upper and lower of lock body 10-1, the arcuate guide of its upper and lower covers was pressed into lock pin 10-6 in the lock body 10-1 along being pressed on the Dou face of dead bolt gradually smooth-goingly.
One end of unlocking handle 10-4 cylinder lever connecting rod or backguy, the other end of pull bar or backguy is connected with the bar handle of unblanking on being fixed in vehicle seat or handlebar or vehicle frame.The unlocking handle 10-4 that needn't bend when unblanking to rotate only needs to use the bar handle of unblanking that is positioned on vehicle seat or handlebar or the vehicle frame to get final product.
Also be equipped with and take turns lock 6 on the caudal furca 5 at this car embodiment rear vehicle shaft position, its structure is shown in Fig. 1,8,9, and the lock frame 6-1 of wheel lock 6 is installed in caudal furca 5, snap close 6-3 middle part hinge is loaded on lock frame 6-1, snap close 6-3 outer end is relative with the locked groove of lock frame 6-1, and snap close 6-3 outer end is connected with the also wheel lock spring 6-5 that an end is fixed in lock frame 6-1, and snap close 6-3 is inner relative with axial cam 6-6, axial cam 6-6 goes up affixed coupled arm 6-4, and coupled arm 6-4 connects the backguy of unblanking.Buckle 6-2 and be installed in front fork one side of front vehicle wheel axial region position, buckle 6-2 and the locked groove of lock frame 6-1 and be positioned at this car relative the same side when folding.When this car during folding and wheel front truck wheel shaft place buckle that 6-2 presses snap close 6-3 outer end, makes it rotation, compression and wheel lock spring 6-5, buckle after 6-2 snaps in the locked groove, and the power of wheel lock spring 6-5 makes snap close 6-3 reset, seal locked groove.When opening, pulling and wheel are locked the backguy of unblanking, and coupled arm 6-4 drives axial cam 6-6 and rotates, and cam 6-6 makes snap close 6-3 rotation to sinciput snap close 6-3 lower end, and move backward snap close 6-3 outer end, opens locked groove, and buckling 6-2 can pull out from locked groove.
This car embodiment intermediate axle housing 4-1 is equipped with cardan wheel 3 in the bottom side, as shown in Figure 1.As shown in figure 10, folding back of this car and wheel lock 6 will and neat front and back wheel link closely, this moment, rear wheel sprocket wheel and planet speed change mechanism 4 were in disengaged position, foot-operated arm mechanism 2 is in neutral state, and front and back wheel is rotated does not influence foot-operated arm, makes this car form the small-sized go-cart that can carry certain volume and weight, this moment, the cardan wheel 3 and the front and back wheel of axis bottom were that road wheel, handlebar are handle, can carry out free front and back, be convenient to moving of this car, or carry article with it.
Claims (10)
1 speed change folding bicycle comprises the front vehicle frame that front-wheel and handlebar are installed, and the back vehicle frame of trailing wheel, footstep mechanism, transmission device and vehicle seat is installed, footstep mechanism connects axis, the front and back vehicle frame connects through blocking device, and chain connects axis sprocket wheel and rear wheel sprocket, it is characterized in that:
Described transmission device is an axis planet speed-change transmission device (4), install unidirectional axis ratchet (4-3) on the interior axis of intermediate axle housing (4-1) (4-2), speed change star frame (4-4) engagement that axis ratchet (4-3) is outer with being placed in axis (4-2), the sleeve (4-8) that the bearing fit with it of coaxial assembling is arranged on the axis (4-2), install the sun tooth (4-7) of three different-diameters on the sleeve (4-8), three ratchet inner circular tooths (4-6) are set in outside the speed change star frame (4-4), ring has the internal tooth that matches with speed change star tooth (4-5) in it, and its outer rim has ratchet; The axle of three groups of speed change star teeth (4-5) is articulated in speed change star frame (4-4), three every group speed change star teeth (4-5) be between cooresponding ratchet inner circular tooth (4-6), the sleeve sun tooth (4-7) and with the two engagement; Sleeve (4-8) end installs axis sprocket wheel (4-9).
2 speed change folding bicycles according to claim 1 is characterized in that:
Speed change off-axis (41-3) also is housed, speed change off-axis (41-3) is parallel with axis (4-2), be positioned at axis (4-2) rear, its two ends removable mounting in intermediate axle housing (4-1), have corresponding to three ratchet inner circular tooths (4-6) on it, that match, that be positioned at different radial angles clutch ratchet with its ratchet (41-4), the end that displacement off-axis (41-3) stretches out intermediate axle housing (4-1) has variable-speed operating control handle (41-2), and it rotates drive displacement off-axis (41-3) makes certain the clutch ratchet (41-4) on it mesh with ratchet inner circular tooth (4-6).
3 speed change folding bicycles according to claim 2 is characterized in that:
The affixed shift cam axle of speed change off-axis (41-3) end installs the spacing chuck of speed change (41-1) on the shift cam axle, positioning spline is arranged on it, and the positioning key that is positioned at different radial angles that matches with three clutch ratchets (41-4) is arranged on the intermediate axle housing (4-1).
4 speed change folding bicycles according to claim 1 is characterized in that:
This car is equipped with gravity propulsive mechanism (9), and caudal furca (5) rear end and rear vehicle shaft are affixed, and (4-1) is hinged for front end and intermediate axle housing, and pressure spring (8) connects caudal furca (5) front middle part and vehicle seat underframe, the hinged angle arm in caudal furca (5) front end bottom side (9-1); Gravity propulsive mechanism (9) is installed in the intermediate axle housing (4-1), comprises gravity single direction ratchet (9-4), gravity pinion carrier (9-2), gravity planet tooth (9-5), circle tooth (9-6), gravity sun tooth (9-3); The gravity pinion carrier (9-2) that the interior axis of intermediate axle housing (4-1) (4-2) is gone up coaxial package gravity single direction ratchet (9-4) and is engaged with, gravity pinion carrier (9-2) goes up uniform hinge and adorns three gravity planet teeth (9-5), circle tooth (9-6) be enclosed within axis (4-2) outer with intermediate axle housing (4-1) Joint, gravity planet tooth (9-5) be between the gravity sun tooth (9-3) that encloses tooth (9-6) and be set in axis (4-2) and with the two engagement; Gravity sun tooth (9-3) is connected with variable speed planetary frame (4-4), and the front end of angle arm (9-1) and gravity single direction ratchet (9-4) are hinged.
5 speed change folding bicycles according to claim 1 is characterized in that:
Described foot-operated arm is foot-operated arm telescoping mechanism (2), comprises foot-operated arm arm body (2-1), rocker (2-2), slide bar (2-5); Foot-operated arm arm body (2-1) end and axis (4-2) are affixed, arm body (2-1) is a housing, rocker (2-2) is positioned at arm body (2-1), affixed parallel before and after rocker (2-2) outer end with axis (4-2), two rotating shafts (2-3) in line relatively, rotating shaft (2-3) is inserted in the axis hole of arm body (2-1) other end, rotating shaft (2-3) can freely be rotated in axis hole, rocker (2-2) outer end inner wall installs sliding sleeve (2-4), slide bar (2-5) is inserted in this sliding sleeve (2-4), there is straight-tooth its inner, stretch out from arm body (2-1) stomidium slide bar (2-5) outer end, installation foot pedal (2-6), slide bar (2-5) and sliding sleeve (2-4) bearing fit; The inner equipped duplex pendulum tooth (2-7) of rocker (2-2) installs arc tooth (2-8) in the arm body (2-1), duplex is put one and arc tooth (2-8) engagement of tooth (2-7), and another connection meshes with the straight-tooth of slide bar (2-5) the inner; Slide bar (2-5) also is connected with the retracing spring (2-9) that an end is fixed in arm body (2-1).
6 speed change folding bicycles according to claim 5 is characterized in that:
Be installed with one or more track adjusting wheels (2-10) between described slide bar (2-5) and the rocker (2-2).
7 speed change folding bicycles according to claim 1 is characterized in that:
Described front and back vehicle frame blocking devices (10), comprise the lock body (10-1) that is installed in vehicle frame abutting end behind this car, be installed in the locking closure (10-3) of front vehicle frame (1) abutting end, locking closure (10-3) is hinged with the hinge (10-2) that is installed in the back vehicle frame, lock body (10-1) is a housing, the axle of unblanking of lock body (10-1) internal fixation is gone up the gear (10-7) of unblanking is installed, the dead bolt of two cylindricality lock pins (10-6) respectively up and down up and down, lock pin (10-6) is connected with an end of last lower spring (10-5) respectively up and down, the other end of last lower spring (10-5) is fixed in lock body (10-1), the affixed upper rack in below of the lock pin (10-6) of top, the affixed tooth bar down in the top of the lock pin (10-6) of below, tooth bar is engaged with at the left and right sides of the gear of unblanking (10-7) respectively up and down; An outer end of unblanking is equipped with unlocking handle (10-4), and locking closure (10-3) has parallel upper and lower covers, and the front end of upper and lower covers is mutually permanently connected and is affixed with front vehicle frame (1), and (10-2) is hinged for rear end and hinge; The lockhole that matches with the dead bolt on lock pin (10-6) top is arranged on the upper and lower covers, and when locking closure (10-3) turns to its upper and lower covers when being positioned at lock body (10-1) upper and lower, the dead bolt of lock pin (10-6) inserts in the lockhole of locking closure (10-3) upper and lower covers.
8 speed change folding bicycles according to claim 6 is characterized in that:
Described lock pin (10-6) up and down is angular plane surface or oblique cambered surface in the face of dead bolt one side that locking closure (10-3) moves into direction, and the upper and lower covers of locking closure (10-3) has the arcuate guide edge that upwarps of matching with dead bolt towards the side edge of lock body (10-1).
9 speed change folding bicycles according to claim 1 is characterized in that:
Also be equipped with and take turns lock (6) on the caudal furca (5) at this car rear vehicle shaft position, and wheel lock (6) comprises lock frame (6-1), snap close (6-3), axial cam (6-6), buckles (6-2); Its lock frame (6-1) is installed in caudal furca (5), snap close (6-3) middle part hinge is loaded on lock frame (6-1), snap close (6-3) outer end is relative with the locked groove of lock frame (6-1), snap close (6-3) outer end is connected with the also wheel lock spring (6-5) that an end is fixed in lock frame (6-1), snap close (6-3) is inner relative with axial cam (6-6), axial cam (6-6) is gone up affixed coupled arm (6-4), and coupled arm (6-4) connects the backguy of unblanking; Buckle (6-2) and be installed in front fork one side of front vehicle wheel axial region position, buckle (6-2) and the locked groove of lock frame (6-1) and be positioned at this car relative the same side when folding, this car buckles (6-2) and snaps in the locked groove of lock frame (6-1) when folding.
10 speed change folding bicycles according to claim 1 is characterized in that:
Cardan wheel (3) is equipped with in this car intermediate axle housing (4-1) bottom side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033782 CN2885708Y (en) | 2006-04-06 | 2006-04-06 | Speed-changeable folding bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033782 CN2885708Y (en) | 2006-04-06 | 2006-04-06 | Speed-changeable folding bicycle |
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| Publication Number | Publication Date |
|---|---|
| CN2885708Y true CN2885708Y (en) | 2007-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620033782 Expired - Fee Related CN2885708Y (en) | 2006-04-06 | 2006-04-06 | Speed-changeable folding bicycle |
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| CN (1) | CN2885708Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465053C (en) * | 2007-06-26 | 2009-03-04 | 程立良 | Multifunctional foldable bicycle |
| TWI471492B (en) * | 2012-08-21 | 2015-02-01 | ||
| TWI471493B (en) * | 2012-08-21 | 2015-02-01 | ||
| TWI471491B (en) * | 2012-08-21 | 2015-02-01 | ||
| TWI477703B (en) * | 2012-08-21 | 2015-03-21 | ||
| TWI477704B (en) * | 2012-08-21 | 2015-03-21 | ||
| TWI479095B (en) * | 2012-08-21 | 2015-04-01 | ||
| CN106969103A (en) * | 2017-05-25 | 2017-07-21 | 李钢 | A kind of internal speed variator of bicycle and its arrangements for speed regulation |
-
2006
- 2006-04-06 CN CN 200620033782 patent/CN2885708Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465053C (en) * | 2007-06-26 | 2009-03-04 | 程立良 | Multifunctional foldable bicycle |
| TWI471492B (en) * | 2012-08-21 | 2015-02-01 | ||
| TWI471493B (en) * | 2012-08-21 | 2015-02-01 | ||
| TWI471491B (en) * | 2012-08-21 | 2015-02-01 | ||
| TWI477703B (en) * | 2012-08-21 | 2015-03-21 | ||
| TWI477704B (en) * | 2012-08-21 | 2015-03-21 | ||
| TWI479095B (en) * | 2012-08-21 | 2015-04-01 | ||
| CN106969103A (en) * | 2017-05-25 | 2017-07-21 | 李钢 | A kind of internal speed variator of bicycle and its arrangements for speed regulation |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 Termination date: 20110406 |