CN1319771C - Power vehicle driven by spring - Google Patents
Power vehicle driven by spring Download PDFInfo
- Publication number
- CN1319771C CN1319771C CNB2005100128133A CN200510012813A CN1319771C CN 1319771 C CN1319771 C CN 1319771C CN B2005100128133 A CNB2005100128133 A CN B2005100128133A CN 200510012813 A CN200510012813 A CN 200510012813A CN 1319771 C CN1319771 C CN 1319771C
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- CN
- China
- Prior art keywords
- spring
- brake
- flywheel
- sliding key
- key shaft
- Prior art date
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Abstract
The present invention relates to a power vehicle driven by springs, which comprises a vehicle frame, spiral spring reeds, a sliding key shaft, an operating and controlling system and a braking and energy-storing device, wherein the spiral spring reeds, the sliding key shaft, the operating and controlling system and the braking and energy-storing device are arranged on the vehicle frame. The present invention is characterized in that spiral springs and spring brackets are arranged on the vehicle frame, the spiral springs are arranged on the spring brackets through central power shafts of the spiral springs, and the sliding key shaft is arranged between two sets of the spiral springs. The moved sliding key shaft can be butted with a butting groove of the sliding key shaft on one of the power shafts after insertion, a positioning sleeve of a sliding key shaft wheel is arranged on the sliding key shaft, and the position is fixed by a positioning frame. A braking flywheel, a braking hub and a gear or a flywheel are arranged on the positioning sleeve of the sliding key shaft wheel, and the braking flywheel can restore the braking energy to the spiral springs after connected with a reverse flywheel through a chain. An outer shell of the braking hub is covered by braking sheets and braking hoops, and the running of the vehicle can be controlled by a controlling line. The vehicle can be driven to move through alternately winding the two sets of the spiral springs during pedaling or winding the spiral springs by a single reed through a motor.
Description
Affiliated technical field
The present invention relates to the spring driven spring powered car of a kind of usefulness.
Background technology
Along with progress of industry, trip in people's daily life has more and more made things convenient for, automobile has solved the problem of people's trips, but price is more expensive, and in current society, gasoline is also more and more expensive, to environmental concerns worse and worse, and also need driving training, lead to such an extent that can drive after the driving license, though and bicycle is cheap, carless comfort level reaches speed efficiently.From the bicycle invention centuries, also be as usual substantially, there is not big variation.
Summary of the invention
In order to overcome automobile because of the pollution of oil firing to environment, reduce human dependence to oil, people press for and a kind ofly can replace automobile and safety and comfort, convenient and swift and cheap again, easy operation, do not need the vehicle of driving license.
The technical solution adopted for the present invention to solve the technical problems is; Car is loaded onto the driving spring, drive spring and make, drive vehicle with the driving spring and advance by clockwork spring or torsion spring.It comprises that vehicle frame, two groups drive spring, castellated shaft, forward gear, brake closed-center system, is characterized in that; Drive spring support and be installed in vehicle frame, drive spring and be installed in the driving spring support, drive spring and driving spring support by the driving spring axle mounting that drives the spring center-side, the other end that drives spring also is installed in the driving spring support by bearing pin, dynamical axis is installed with the ratchet of the stop mechanism that prevents the clockwork spring counter-rotating, the ratchet of stop mechanism is installed on the ratchet spring support by the click spring on axle and the axle, ratchet is connected with clockwork spring control bar by click spring control and by control line about clockwork spring, the outer end of dynamical axis is provided with the crank key cylinder, in case of necessity, can tighten the driving spring by hand electronic or external force.The other end of dynamical axis is installed flywheel and sliding key shaft docking groove, sliding key shaft is installed in the middle of two clockwork spring groups, in the middle of the sliding key shaft is hollow, two ends are set on the dynamical axis of two groups of clockwork springs, and can slide between two dynamical axiss, and when sliding into a top, can insert mutually with the sliding key shaft docking groove on one of them dynamical axis, the two ends installing and locating bearing of sliding key shaft is installed the sliding key shaft turning wheel on the location bearing, the sliding key shaft turning wheel is connected with clockwork spring control bar by control line about sliding key shaft.And stir the sliding key shaft sway by clockwork spring control bar, feather key arbor wheel locating bush is installed on the sliding key shaft, the parts that feather key arbor wheel locating bush can make sliding key shaft install on the feather key arbor wheel locating bush when mobile are motionless, feather key arbor wheel locating bush fixes the position by the locating rack that is installed on the vehicle frame, and brake flywheel, brake hub, gear or flywheel are installed on the feather key arbor wheel locating bush; The brake flywheel is connected by the reverse flywheel on chain and the reverse wheel shaft, oppositely on the wheel shaft reverse gear and control line are installed also, control line is connected with Brake pedal by vehicle frame, reverse gear does not mesh with rear axle gear under normal conditions, during brake by the pedal that applies the brakes, Brake pedal pulls to rear axle by control line with reverse wheel shaft, make the engagement of rear axle gear and reverse gear, reverse gear drives the brake flywheel on reverse flywheel and the sliding key shaft again, thereby the brake energy is stored in the clockwork spring again, the energy of waste in the time of can reducing brake like this.The brake hub also is installed on the feather key arbor wheel locating bush, the brake hub shell is by brake shoe and brake hoop parcel, the friction of brake shoe and brake hub can limit the rotation of brake hub, the brake banding is rolled on the brake shoe, one end of brake hoop is connected with an end of connection lead, the other end of connection lead connects to ground, the other end of brake hoop is connected with an end of brake retracting spring by control line, the other end of brake retracting spring is connected with brake retracting spring frame on being installed in vehicle frame, the pedal that advances is connected with the brake retracting spring bar with the line traffic control frame that advances by control line, the brake retracting spring bar is connected with brake retracting spring, the operator is by stepping on the pedal that advances, make brake retracting spring loosening, the lax aftercarriage of brake hoop just can advance.Gear on the feather key arbor wheel locating bush and motor gear engagement tighten clockwork spring by motor drives.Can change gear into flywheel as without electrical motor the time, flywheel is connected with wheel disc by chain, wheel disc is installed on the bent axle, crankshaft installed is on the bent axle frame, the bent axle frame is installed in vehicle frame, pedal is installed on the bent axle, the operator can be by stepping on the rotation of toe clip runner disc, and drive flywheel by chain, thereby a group of tightening wherein drives spring, advances and drive spring powered vehicle by another group, after waiting another group group driving spring release to finish, this group drives spring and also tightens, by sliding key shaft, by the driving spring powered vehicle that has tightened, release finishes begins again heavily to wind up, when winding up with pedal without electrical motor, the brake hub need be installed on the special-purpose brake hub axle in addition, so that sliding key shaft that car is wound up when advancing and the brake hub axle that advances by the lax hub of braking are independent of each other.
Driving spring of the present invention can be done power with clockwork spring, also can make the torsion spring to the driving spring and do power, available two group spring drives car and advances, also available single group spring drives car and advances as with electrical motor the time, or electrical motor uses simultaneously with foot-operated two kinds of methods, when doing the driving spring with the torsion spring, spring support can be extended, sliding key shaft shortens, and can remove sliding key shaft as with single group spring the time, by the hub direct drive of braking.
The present invention takes said structure, mechanical powered drive driving with spring, behind the fully-wound, look the length of clockwork spring, can provide power to car for a long time, after clockwork spring discharges to the greatest extent, look for electricity to wind up and also be easy to, just and as do not belong to the category of battery-driven car without the words of electrical motor, tramp with one's feet and wind up, belong to bicycle fully, just can drive without driving license.The present invention also can make single seat or many s'.Also this device can be applied to the device that other needs power.
Description of drawings
Fig. 1 is the embodiment of the invention one assembly drawing.
Fig. 2 is the embodiment of the invention one a dynamical axis assembly drawing.
Fig. 3 is the embodiment of the invention one a control system assembly drawing.
Fig. 4 is the embodiment of the invention one a control lever assembly drawing.
Fig. 5 is the reverse wheel shaft assembly drawing of the embodiment of the invention.
Fig. 6 is the embodiment of the invention one a side-looking assembly drawing.
Fig. 7 is the embodiment of the invention two assembly drawings.
Fig. 8 is the embodiment of the invention two control system assembly drawings
Fig. 9 is the embodiment of the invention three assembly drawings.
Figure 10 is the embodiment of the invention three dynamical axis assembly drawings.
Among the above-mentioned figure
1, vehicle frame 2, front-wheel 3, steering swivel system 4, front wheel spindle 5, hyperbolic pedestal 6, pedal 7, the hyperbolic axle, 8, wheel disc, 9, controlled pedal (or hand lever) 10 advances, brake energy storage pedal 11, clockwork spring control bar, 12, ratchet control bar 13, bearing circle 14, seat 15, chain 16, electrical motor 17, motor gear 18, drive spring support 19, crank key cylinder 20, dynamical axis 21, drive spring 22, ratchet 23, ratchet 24, pawl axis 25 click springs 26, sliding key shaft turning wheel 27, location bearing 28, bearing pin 29, gear 30, flywheel 31, trailing wheel 32, hind axle 33, the brake hub, 34, brake shoe 35, brake hoop 36, brake banding solidus 37, sliding key shaft 38 feather key arbor wheel locating bushs 39, sliding key shaft docking groove 40, brake flywheel 41, chain 42, reverse flywheel 43, dynamical axis flywheel 44, chain drive-belt 45, drive flywheel 46, locating rack 47, reverse gear 48, rear axle gear 49, control line 50, brake hub axle 51, brake hub axle flywheel 52, chain 53, rear flywheel 54, pedal shaft 55 advances, pedal curved bar 56 advances, pedal spring 57, brake retracting spring frame 58, brake retracting spring 59, brake retracting spring bar 60, the line traffic control of advancing frame 61, brake retracting spring bar axle 62, car bottom plate 63, handle bridge 64, control line 65, clockwork spring left side control line 66, the right control of clockwork spring line 67, sliding key shaft left side control line 68, the right control of sliding key shaft line 69, pedal spring 70, brake energy storage pedal shaft 71, brake energy storage pedal curved bar 72, brake energy storage control line 73, reverse wheel carrier 74, reverse wheel shaft 75, control line 76 advances, joystick shaft
The specific embodiment
Below in conjunction with embodiment and description of drawings detailed structure of the present invention thereof, but the present invention is not limited to following embodiment.
The spring driven power car of a kind of usefulness that Fig. 1 describes comprises; Vehicle frame 1, driving spring 21, sliding key shaft 37 and maneuvering system and brake closed-center system drive spring 21, sliding key shaft 37 and maneuvering system and brake closed-center system and are installed in vehicle frame 1, it is characterized in that; Said driving spring 21, drive spring support 18 and be installed in vehicle frame 1, drive spring 21, be installed in driving spring support 18 by driving spring center dynamical axis 20, drive the spring other end and also be installed in driving spring support 18 by bearing pin 28, dynamical axis 20 is installed with the ratchet 22 of the stop mechanism that prevents to drive spring 21 counter-rotatings, the ratchet 23 of stop mechanism is installed in by the click spring 25 on axle 24 and the axle and drives on the spring support 18, ratchet 23 is by click spring 25 controls and by clockwork spring left side control line 65, be connected with ratchet control bar 12 with the right control line 66 of clockwork spring, the outer end of dynamical axis 20 is provided with crank key cylinder 19, the other end of dynamical axis is installed dynamical axis flywheel 43 and sliding key shaft docking groove 39, and dynamical axis flywheel 43 is connected with rear flywheel 45 on being installed in hind axle 32 by chain drive-belt 44.Two drive the middle sliding key shaft 37 of installing of spring group, sliding key shaft 37 two ends join with two groups of dynamical axiss 20 that drive spring 21 respectively, and dock after after moving, inserting with the sliding key shaft docking groove 39 on one of them dynamical axis 20, the two ends installing and locating bearing 27 of sliding key shaft 37, sliding key shaft turning wheel 26 is installed on the location bearing, and sliding key shaft turning wheel 26 is connected with clockwork spring control bar 11 by sliding key shaft left side control line 67, the right control of sliding key shaft line 68.And stir sliding key shaft 37 sway by clockwork spring control bar 11, feather key arbor wheel locating bush 38 is installed on the sliding key shaft 37, feather key arbor wheel locating bush 38 fixes the position by the locating rack 46 that is installed on the vehicle frame 1, and brake flywheel 40, brake hub 33, gear 29 (see figure 2)s are installed on the feather key arbor wheel locating bush 38.Brake flywheel 40 is connected by the reverse flywheel 42 on chain 41 and the reverse wheel shaft 74, oppositely wheel shaft 74 is installed on the reverse wheel carrier 73, oppositely wheel carrier 73 is installed on the vehicle frame 1 parallel with hind axle 32, oppositely on the wheel shaft 74 reverse gear 47 and control line 49 are installed also, the other end of (see figure 5) control line 49 is connected with Brake pedal 10 by vehicle frame 1, reverse gear 47 does not mesh with rear axle gear 48 under normal conditions, during brake by the pedal 10 that applies the brakes, Brake pedal 10 pulls to rear axle 32 by control line 49 with reverse wheel shaft 74, makes rear axle gear 48 and reverse gear 47 engagements.Brake hub 33 also is installed on the feather key arbor wheel locating bush 38, the shell of brake hub 33 is by brake shoe 34 and brake hoop 35 parcels, one end of brake hoop 35 is connected with an end of brake banding solidus 36, the other end of brake banding solidus 36 is connected with vehicle frame 1, the other end of brake hoop 35 is connected with an end of brake retracting spring 58 by control line 64, the other end of brake retracting spring 58 is connected with brake retracting spring frame 57 on being installed in vehicle frame 1, the controlled pedal 9 that advances is connected with brake retracting spring bar 59 with the line traffic control frame 60 that advances by the control line 75 that advances, the upper end of brake retracting spring bar 59 is installed on the vehicle frame 1 by brake retracting spring bar axle 61, the lower end of brake retracting spring bar 59 also is connected with brake retracting spring 58, on the (see figure 3) feather key arbor wheel locating bush 38 gear 29 is installed also, gear 29 meshes with the gear 17 of electrical motor 16.Clockwork spring control bar 11 is installed in by joystick shaft 76 with ratchet control bar 12 and handles on the bridge 63, handle bridge and be installed on the car bottom plate 62, about stir clockwork spring control bar 11 and just can control clockwork spring 21 work by clockwork spring left side control line 65, clockwork spring right control line 66 and sliding key shaft left side control line 67 and the right control of sliding key shaft line 68 with ratchet control bar 12.(see figure 4)
The embodiment of the invention two is seen Fig. 2, what present embodiment and embodiment one were different is not have electrical motor, and drive spring on tramping with one's feet while advancing fully, present embodiment is to change at the gear of installing on feather key arbor wheel locating bush on the basis of embodiment one 29 flywheel 30 is installed, brake hub 33 is installed on the ad hoc in addition brake hub axle 50, drive flywheel 45 and also be installed in brake hub axle 50, driving flywheel 45 is connected with dynamical axis flywheel 43 by chain 44, brake hub axle flywheel 51 is installed on the brake hub axle 50 in addition, rear flywheel 53 also is installed on the hind axle 32, and is connected with brake hub axle flywheel 51 by chain 52.Hyperbolic axle 7 is set before the seat, and hyperbolic axle 7 is installed on the hyperbolic pedestal 5, and hyperbolic pedestal 5 is installed on the vehicle frame 1, and wheel disc 8 is installed in the middle of the hyperbolic axle 7, and wheel disc 8 is connected with flywheel 30 on the feather key arbor wheel locating bush 38 by chain 15.The controlled pedal 9 that advances changes into advancing handles hand lever 9, and brake retracting spring bar 59 is prolonged, and handles hand lever 9 direct control vehicles with advancing and advances.(see figure 7)
The embodiment of the invention three is seen Fig. 9, what present embodiment and embodiment one were different is to have only to drive a spring, therefore do not need sliding key shaft and sliding key shaft locating bush and sliding key shaft turning wheel yet, brake hub 33 and brake flywheel 40 and driving flywheel 29 are directly installed on dynamical axis 20, ratchet 22 is installed in and drives spring support 18, drive spring 21, be installed in driving spring support 18 by center dynamical axis 20, the other end that drives spring 21 directly is connected with vehicle frame 1.Also can use the torsion spring as need not drive spring 21 time instead and make to drive spring 21, (see figure 10) drives spring 21 and is sleeved on the dynamical axis 20, an end that drives spring 21 is connected with driving spring support 18, the other end that drives spring 21 directly is connected with dynamical axis 20, and dynamical axis 20 is also installed brake hub 33, brake flywheel 40, reached driving flywheel 29 and dynamical axis flywheel 43.
Claims (8)
1, a kind ofly use spring driven power car, it comprises; Vehicle frame, driving spring, sliding key shaft and maneuvering system and brake closed-center system drive spring, sliding key shaft and maneuvering system and brake closed-center system and are installed in vehicle frame, it is characterized in that; Said driving spring, drive spring support and be installed in vehicle frame, drive spring and be installed in the driving spring support by driving spring center dynamical axis, dynamical axis is installed with the ratchet of the stop mechanism that prevents the clockwork spring counter-rotating, the ratchet of stop mechanism is installed on the ratchet spring support by the click spring on axle and the axle, ratchet is connected with ratchet control bar by click spring control and by clockwork spring left and right sides control line, the outer end of dynamical axis is provided with the crank key cylinder, the other end of dynamical axis is installed and is driven flywheel and sliding key shaft docking groove, driving flywheel is connected with rear flywheel on being installed in hind axle by chain drive-belt, feather key arbor wheel locating bush is installed on the sliding key shaft, on the feather key arbor wheel locating bush gear is installed, electrical motor is installed on the vehicle frame, gear on the feather key arbor wheel locating bush and motor gear engagement, clockwork spring control bar and ratchet control bar are installed in by joystick shaft and handle on the bridge, handle bridge and are installed on the car bottom plate.
2, a kind of spring driven power car of using according to claim 1 is characterized in that; Two drive the middle sliding key shaft of installing of spring group, the sliding key shaft two ends join with the dynamical axis of two groups of clockwork springs respectively, and dock after after moving, inserting with the sliding key shaft docking groove on one of them dynamical axis, the two ends installing and locating bearing of sliding key shaft, the sliding key shaft turning wheel is installed on the location bearing, the sliding key shaft turning wheel connects with clockwork spring control bar by control line about sliding key shaft, and stir the sliding key shaft sway by clockwork spring control bar, feather key arbor wheel locating bush is installed on the sliding key shaft, feather key arbor wheel locating bush fixes the position by the locating rack that is installed on the vehicle frame, and the brake flywheel is installed on the feather key arbor wheel locating bush, the brake hub, gear.
3, a kind of spring driven power car of using according to claim 1 is characterized in that; The brake flywheel is connected by the reverse flywheel on chain and the reverse wheel shaft, the reversing wheel axle mounting is on reverse wheel carrier, oppositely wheel carrier is installed on the vehicle frame parallel with hind axle, oppositely on the wheel shaft reverse gear and control line are installed also, the other end of control line is connected with Brake pedal by vehicle frame, and reverse gear does not mesh with rear axle gear under normal conditions, during brake by the pedal that applies the brakes, Brake pedal pulls to rear axle by control line with reverse wheel shaft, makes the engagement of rear axle gear and reverse gear.Thereby drive reverse flywheel rotation.
4, a kind of spring driven power car of using according to claim 1 is characterized in that; The brake hub also is installed on the feather key arbor wheel locating bush, the shell of brake hub is by brake shoe and brake hoop parcel, one end of brake hoop is connected with an end of brake banding solidus, the other end of brake banding solidus connects to ground, the other end of brake hoop is connected with an end of brake retracting spring by control line, the other end of brake retracting spring is connected with brake retracting spring frame on being installed in vehicle frame, the controlled pedal that advances is connected with the brake retracting spring bar with the line traffic control frame that advances by the control line that advances, on vehicle frame, the lower end of brake retracting spring bar also is connected with brake retracting spring by brake retracting spring bar axle mounting in the upper end of brake retracting spring bar.
5, a kind of spring driven power car of using according to claim 1 is characterized in that; Without driving spring on the electrical motor, and drive spring on tramping with one's feet while advancing fully, change the gear of installing on the feather key arbor wheel locating bush into the installation flywheel, the brake hub is installed on the ad hoc in addition brake hub axle, drive flywheel and also be installed in brake hub axle, driving flywheel is connected with the dynamical axis flywheel by chain, brake hub axle flywheel is installed on the brake hub axle in addition, rear flywheel also is installed on the hind axle, and be connected with brake hub axle flywheel by chain, the hyperbolic axle is set before the seat, and the hyperbolic axle mounting is on the hyperbolic pedestal, and the hyperbolic pedestal is installed on the vehicle frame, wheel disc is installed in the middle of the hyperbolic axle, wheel disc is connected with flywheel on the feather key arbor wheel locating bush by chain, and the controlled pedal that advances changes the manipulation hand lever that advances that the brake retracting spring bar is prolonged into, handles hand lever with advancing and directly controls and make vehicle and advance.
6, a kind of spring driven power car of using according to claim 1 is characterized in that; Also can only drive spring with one group, therefore also not need sliding key shaft and sliding key shaft locating bush, brake hub, brake flywheel, driving flywheel, direct geared are installed in dynamical axis, and clockwork spring is installed in spring support by central dynamic shaft of spring, and the other end of clockwork spring directly connects to ground.
7, a kind of spring driven power car of using according to claim 1 is characterized in that; Clockwork spring control bar and ratchet control bar are installed in by joystick shaft and handle on the bridge, handle bridge and be installed on the car bottom plate, about stir clockwork spring control bar and just can control clockwork spring work by controlling line about clockwork spring about control line and sliding key shaft with ratchet control bar.
8, a kind of spring driven power car of using according to claim 1 is characterized in that; Make to drive spring without clockwork spring, available torsion spring is done the driving spring, can the spring support lengthening will be driven, driving spring is sleeved on the dynamical axis, an end that drives spring is connected with the driving spring support, the other end that drives spring directly is connected with dynamical axis, and dynamical axis is also installed brake hub, brake flywheel, reached driving flywheel and dynamical axis flywheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100128133A CN1319771C (en) | 2005-09-11 | 2005-09-11 | Power vehicle driven by spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100128133A CN1319771C (en) | 2005-09-11 | 2005-09-11 | Power vehicle driven by spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1749061A CN1749061A (en) | 2006-03-22 |
| CN1319771C true CN1319771C (en) | 2007-06-06 |
Family
ID=36604774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100128133A Expired - Fee Related CN1319771C (en) | 2005-09-11 | 2005-09-11 | Power vehicle driven by spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1319771C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4813509A (en) * | 1987-11-13 | 1989-03-21 | Harris Richard J | Mechanical energy storage and use system for motor vehicles |
| CN1132766A (en) * | 1994-12-21 | 1996-10-09 | 住友化学工业株式会社 | Antiblocking agent master batch and oriented polyolefin resin film using the same |
| CN2305360Y (en) * | 1997-06-28 | 1999-01-27 | 李贺亭 | Mechanical energy storage enforcing device for bicycle |
| CN1508038A (en) * | 2002-12-20 | 2004-06-30 | 上海闰勉贸易有限公司 | Energy--storing booster bicycle |
| US6820880B2 (en) * | 2002-05-24 | 2004-11-23 | Nick Charles Benton | Spring powered wheelbarrow |
-
2005
- 2005-09-11 CN CNB2005100128133A patent/CN1319771C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4813509A (en) * | 1987-11-13 | 1989-03-21 | Harris Richard J | Mechanical energy storage and use system for motor vehicles |
| CN1132766A (en) * | 1994-12-21 | 1996-10-09 | 住友化学工业株式会社 | Antiblocking agent master batch and oriented polyolefin resin film using the same |
| CN2305360Y (en) * | 1997-06-28 | 1999-01-27 | 李贺亭 | Mechanical energy storage enforcing device for bicycle |
| US6820880B2 (en) * | 2002-05-24 | 2004-11-23 | Nick Charles Benton | Spring powered wheelbarrow |
| CN1508038A (en) * | 2002-12-20 | 2004-06-30 | 上海闰勉贸易有限公司 | Energy--storing booster bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1749061A (en) | 2006-03-22 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20070606 |