CN101247980A - Vehicle with variable wheel camber - Google Patents
Vehicle with variable wheel camber Download PDFInfo
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- CN101247980A CN101247980A CNA2006800244796A CN200680024479A CN101247980A CN 101247980 A CN101247980 A CN 101247980A CN A2006800244796 A CNA2006800244796 A CN A2006800244796A CN 200680024479 A CN200680024479 A CN 200680024479A CN 101247980 A CN101247980 A CN 101247980A
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Abstract
The invention relates to a tricycle convertible to a bicycle. The tricycle has a first wheel rotatably mounted on one end portion of a frame, and a pair of laterally spaced wheels rotatably mounted on a second end portion of the frame, wherein the laterally spaced wheels are movable, while the tricycle is in motion, between a first position with relatively wide ground-level spacing and a second position with minimal ground-level spacing. A wheel hub capable of providing adjustable wheel camber has left and right pivotally mounted axles extending laterally from the hub body, the axles each adapted to support a wheel and mounted so as to pivot vertically, and a dual camber control mechanism coupled to the axles and adapted to provide coordinated camber adjustment in the same direction for wheels on both axles. The hub has sufficient range of motion to allow the wheels to change from negative camber to positive camber, and is useful in a method of stabilizing a bicycle or the like to increase safety during rider training. The method involves a tricycle mode of operation in which the laterally spaced wheels have negative camber, and a bicycle mode of operation in which the laterally spaced wheels have positive camber, with a change from tricycle mode to bicycle mode while in motion, whereby a rider in training may start moving with stable three-point ground contact and, when in motion and balanced, effectively start riding a bicycle.
Description
Background technology
The present invention relates to the wheeled car of bicycle and other manpower and mechanization, and particularly relate to and be used to help people to learn by bike or the device of other wheeled car, this vehicle needs balance with smooth operation.
Traditional learning process by bike is fearful and effort, and described learning process can not change with the years.Generally, child obtains the assistance from father and mother, and father and mother are pushing away the child on bicycle, aside and then runs, and allows child advance then, wishes that child obtained balance before falling down.Learning curve during this process is very steep.
Well-knownly be, the child who is not ready for beginning to learn by bike rides traditional three-wheel vehicle, and exercise wheel be used for child well-known accessory by bike.Yet, still needing to make study process by bike safer and interesting, and make this process become the device of the part of itself target, the result makes that father and mother are the same with child to be experienced more energetically.
Summary of the invention
The present invention has different aspect, but is particularly suitable for helping child how by bike to learn alone.Different with traditional exercise wheel (described exercise wheel prevents the bicycle overturning simply), the present invention allows child progressively to learn how to realize homeostasis, thereby allows them to learn by themselves step.According to an aspect of the present invention, a pair of laterally spaced wheel on the vehicle frame of bicycle or other wheeled car has variable-camber, to allow the predetermined negative camber on the described wheel, so that the stable beginning platform that has isolated wheel is provided at the ground level place, allow the adjustment of two wheel inclinationes on direction simultaneously, reduce the distance between the wheel at place, ground during with convenient vehicle movement.
According to a further aspect in the invention, the wheeled car that has the adustable wheel inclination comprises that at least one is rotatably installed in wheel and a pair of laterally spaced wheel that is rotatably installed on the vehicle frame the second end on end of vehicle frame, wherein said laterally spaced wheel by pivotable installation in case the inclination of each wheel can on the direction identical, adjust with another, for example two wheels inclination outside negative camber becomes, and wherein said inclination can be with the vehicle adjustment of on the go.
Another aspect of the present invention is the wheel nave that variable wheel camber can be provided.Hub body has the left and right axle of horizontal expansion therefrom, and at least one quilt is installed pivotly, and wheel hub comprises the inclination control mechanism that is connected on the axle at least and is suitable for adjusting with respect to another its angle.
The present invention also provides a kind of study by bike or the new mode of similar vehicles.This method comprises: wheeled car is installed, and described wheeled car has vehicle seat on vehicle frame, and this vehicle frame has a wheel at least at one end, and a pair of laterally spaced wheel is arranged on second end; Begin to utilize the predetermined negative camber on two laterally spaced wheels to come by bike, it provides the stable beginning platform that has at the isolated wheel in ground level place; And on direction, adjust the inclination of two laterally spaced wheels thereafter, to reduce the distance between the laterally spaced wheel at ground level place.
The present invention a kind ofly stablizes bicycle or similar vehicles to increase the method for safety at rider's training period.This method comprises: provide the first and second laterally spaced wheels so that 3 ground contacts are provided at least a operation scheme on an end of vehicle frame, described vehicle frame has at least one other wheel that is connected thereto; A kind of three-wheel vehicle operation scheme is provided, and wherein first laterally spaced wheel has negative camber at least; With a kind of bicycle operation scheme is provided, wherein the first laterally spaced wheel has outer inclination and from the minimum ground separation of the second laterally spaced wheel.This method also comprises when motion makes from the three-wheel vehicle operation scheme time can change to the bicycle operation scheme, therefore the rider in the training can utilize 3 stable ground contacts to begin to move, and when working as on the go and reaching balance, in fact begin by bike.
The present invention also provides a kind of three-wheel vehicle of changing into bicycle.This three-wheel vehicle has first wheel and the rotatable a pair of laterally spaced wheel that is installed on the vehicle frame the second end that is rotatably installed on end of vehicle frame, wherein said laterally spaced wheel can the ground level with relative broad at interval primary importance and have between the minimum ground level second place at interval movable.
When in conjunction with the accompanying drawings, when reading the following detailed description, objects and advantages of the present invention will become more apparent.
Description of drawings
Fig. 1 is the lateral plan according to an embodiment of three-wheel vehicle of the present invention.
Fig. 2 is top, the back perspective view of the three-wheel vehicle of Fig. 1.
Fig. 3 A is the back view of same tricycle, illustrates to have the rear wheel that stable beginning flat-bed negative camber is provided for the rider on request.
Fig. 3 B is the back view of same tricycle, and the trailing wheel with zero inclination is shown.
Fig. 3 C is the back view of same tricycle, the rear wheel with outer inclination is shown has formed the bicycle operation scheme effectively.
Fig. 4 illustrates the rear end of vehicle frame and left side, the back perspective view of three-wheel vehicle of the wheel hub of swing therein.
Fig. 5-the 7th, the more detailed view of this swing wheel hub.
Fig. 8 is the section-drawing of a part that the three-wheel vehicle of strap drive is shown.
Fig. 9 is the picture of another embodiment that embodies the three-wheel vehicle of the principle of the invention.
The specific embodiment
For promoting understanding, with reference now to illustrated embodiment in the accompanying drawing and the specific language that is used to describe it to the principle of the invention.Yet, should understand, be not intended to thus as limitation of the scope of the invention, the further application of above-mentioned change in the arrangement illustrated and the further change and the principle of the invention as shown in the figure can be expected usually to the technical personnel that the present invention relates to the field.
Fig. 1 and Fig. 2 illustrate the first embodiment of the present invention with three-wheel vehicle 10 forms, and described three-wheel vehicle has the wheel 12 and 14 of a pair of variable-camber on the rear end that is rotatably installed in roughly Z-shaped framework 16.Disclosed three-wheel vehicle comprises that also the band of the local interior bag of the free gear in front-wheel 18 and vehicle seat 24, crank device 26 and connecting crank device and the wheel hub drives 28, described front-wheel is installed in by in the crotch 20 of traditional approach by handlebar 22 controls, will further be described wheel hub below.
Fig. 3 A-3C illustrate be in different conditions or comprise the three-wheel vehicle pattern and the mode of operation of bicycle pattern in three-wheel vehicle, two trailing wheels have negative camber (as shown in Figure 3A) in the three-wheel vehicle pattern, inclination (shown in Fig. 3 C) outside two trailing wheels have in the bicycle pattern.Those skilled in the art will appreciate that angle of gradient is the angle of the plane of each trailing wheel with respect to vertical direction.Inside inclination angle (that is, the line of centers towards vehicle tilts), this wheel top is called as negative camber; Outside inclination angle is called as outer inclination.Because its inclination and trailing wheel spacing are adjustable, so in fact disclosed embodiment of this invention can change into bicycle from three-wheel vehicle.
Different with traditional training wheel (its only prevent bicycle from toppling over), disclosed three-wheel vehicle allows child how to learn homeostasis.As shown in Figure 3A, the wheel of this variable-camber is by means of helping balance-bicycle during at static and low speed in the expansion (that is three-wheel vehicle operation scheme) at ground level place.When the rider had increased to forward momentum and in this process that its weight moves forward, because the weight that acts on the rear wheel reduces, wheel moved inward (as explanation below), thereby impels balance progressively to transfer on the rider from bicycle.When stability reached the limit (start and stop), three-wheel vehicle was by providing the bigger posture of standing and allow rider's on the go to be transformed into the bicycle operation scheme to come than more balance is provided under the low velocity.
Referring to Figure 4 and 5, three-wheel vehicle has the rear-wheel hub 40 of a swing, and this rear-wheel hub allows rear wheel to slope inwardly and be outward-dipping, thereby and has formed the greater or lesser posture of standing (that is ground level space).Fig. 5 illustrates an embodiment of swing wheel hub, it has the free gear 42 that is rotatably connected to two centralized positionings on the axle 44 by corresponding universal-joint 46, and described universal-joint is positioned at the inside of hub portion 48 truncated cone or cup-shaped (being illustrated as transparent in the accompanying drawings).Be used for the quill shaft of transferring power between non-coaxial axletree or the position that other device can be used to universal-joint.Mounting bracket 50 on each side is supported on wheel hub in the vehicle frame, and each lateral hub part has enough free spaces there to allow the pivot of associated axle.Preferably, limit described axle only to allow vertical the pivot, for example the channel parts 52 by having vertical channel 54 and this axletree or the neck ring 56 that centers on this axletree engage.Can provide flexible rubber boot center on this neck ring seal in the wheel hub opening or as dust boot.Described neck ring is tensioned and is with 58 biased downward, and an end of this tension band is attached on the neck ring removedly and the other end is attached on the hook, and described hook is set on the part of the vehicle frame below the neck ring.Selectively, independent tension band can extend and make two neck rings to interconnect below vehicle frame.Cycle wheel 12 can not be installed on each pivotally by traditional approach.
Hind axle can replace by the tension band bias voltage with the spring bias voltage.For example, can comprise the compression spring of vertical orientation above each in described wheel hub, for example in groove 54 or near groove 54 and be directed with inside part and apply downward application force to neck ring.
Forward Fig. 6 to, three-wheel vehicle can have traditional bottom bracket and traditional crankshaft arrangement, described crankshaft arrangement has pedal on the end of crank arm, but in illustrated embodiment, and each pedal is installed in radius and equals in fact on the annulus of crank arm length of requirement.Hollow bottom bracket 60 combines the axle and the function of crank arm of traditional crankshaft arrangement effectively, and is used as the before driving belt wheel of rotating band 62, thereby it interconnects belt wheel and free gear power is delivered on the rear wheel from crank.The band of bag makes messenger chain away from the rider in the part, thereby and help avoid possible injury; If requirement, its exterior portion can utilize the protective device similar to traditional bicycle chain to cover.
An embodiment of three-wheel vehicle of the present invention has aluminum mono-hull body frame structure for automotive, and this vehicle frame and fork both are made by aluminium 7160 and gas tungsten arc welding (TIG welding).As the example of a packet size, three-wheel vehicle can have 60 inches length, 24 inches width (at the wideest some place), 35 inches height and the weight of 25 pounds.For example, each back axle length can be the diameter that is approximately 5 inches and has 1 inch, and the beam overall of wheel hub can be approximately 5 inches.It is also conceivable that other frame materials, comprise steel, carbon fiber, plastics and titanium.
Fig. 7 illustrates another embodiment of the three-wheel vehicle that merges the principle of the invention.It is also conceivable that other embodiment, comprise wherein replacing weight response adjustment or except that the weight response is adjusted, adjusting wheel inclination as the function of speed or other parameter.For example, speed sensor can provide output signal to adjust the angle of each rear axle to the control circuit and the actuator that are fit to.
Selectively, three-wheel vehicle can have manual camber adjustment mechanism, is connected to handle in the wheel hub or the trigger bar on the trigger mechanism as (for example by control hawser), and described handle or trigger mechanism remain on wheel in the stable negative camber position.The rider can use this trigger bar that rear axle is discharged from shaking hands, thereby thereby the axle of biased downward moves on the angle of level below and with wheel and is transformed on the outer inclination.Similarly mechanical transfer mechanism can come work according to the principle of cable bicycle driven change-speed box.
The three-wheel vehicle of design drawings mainly is of value to two class users.At first, it provides the design plan of less challenge and less menace.This design plan has also been eliminated in the study fear in by bike how.Child feels more self-confident during learning process and self-dependence more, and this has increased the enjoyment of experiencing.This three-wheel vehicle also is easy to use, and need not or instruct and just can use by career training.Secondly, this three-wheel vehicle also makes father and mother be benefited in many aspects.How father and mother feel safer by bike to its child's study, because it has reduced to take place the possibility of injury.Father and mother also can not emit and lose the risk that its child trusts, if this risk may betide after father and mother push child open collision have taken place.Because unexposed messenger chain and wieldy operation, so child is also safer, this allows father and mother to allow child learn alone, and need not continue to monitor its safety.Father and mother also benefit from this three-wheel vehicle be easy to safeguard with part be easy to change.
The present invention is not restricted to sport career age (as traditional training wheel).It also can be used to teenager's age bracket well.There is the messenger chain of protection to help to improve durability, therefore reduced the amount that needs maintenance and replacement part.Also make the study enjoyment that how to have become by bike according to three-wheel vehicle of the present invention, this can encourage child using bicycle in the future (using the increase of the enjoyment of three-wheel vehicle when surpassing learning age).This promptly being used as again as pastime is effective and reasonable on environment and helps to improve environmental liability the future of transporting.
Though in accompanying drawing and front description, described the present invention in detail; it is considered to exemplary with nonrestrictive; should understand what illustrated and described only is preferred embodiment, and the institute in the present invention's spirit scope changes and changes and all requires to be protected.For example, the present invention can specifically be expressed as three-wheel vehicle tandem and/or that recline or bicycle.For special applications, it is also conceivable that with for example engine power on motor bike to replace manpower, or except manpower, also use engine power.In addition, principle of the present invention can also be used for having some application of the vehicle that surpasses three wheels, the picture four-wheel two-seater car of for example changing and the quadricycle of passenger vehicle according to the present invention, so that the inclination of forward and backward wheel assembly is adjustable in the same direction, to obtain the two-wheeled mode of operation effectively.
When the present invention is applied to mountain bike and other when having front and/or back bumper or hanger, suspension type seat post, traditional wire wheel, wheel backplate and the vehicle of roughly recurvate vertical and sagging handgrip being arranged, it is also conceivable that according to the fork-shaped of wheel hub of the present invention and set of wheels and install.
Claims (23)
1. wheeled car with variable wheel camber comprises:
Vehicle frame;
At least one is rotatably installed in the wheel on described vehicle frame one end; With
Be rotatably installed in a pair of laterally spaced wheel on the second end of described vehicle frame;
Wherein said laterally spaced wheel is installed pivotly, so as the inclination of each wheel can with another identical direction on adjust; With
In described vehicle movement, described inclination can be adjusted.
2. vehicle as claimed in claim 1, wherein said at least one wheel is a front-wheel, and described laterally spaced wheel is a trailing wheel.
3. vehicle as claimed in claim 1, wherein said at least one wheel is a trailing wheel, and described laterally spaced wheel is a front-wheel.
4. vehicle as claimed in claim 1 wherein rotatably is equipped with a pair of laterally spaced wheel on each end of described vehicle frame.
5. vehicle as claimed in claim 2, the inclination of wherein said trailing wheel are adjusted between inclination and the negative camber outside.
6. vehicle as claimed in claim 5, wherein said trailing wheel are by enough closely at interval, so that the bottom of trailing wheel described in the inclination state almost contacts with each other outside maximum.
7. wheeled car with camber adjustment mechanism comprises:
Vehicle frame;
At least one is rotatably installed in the wheel on the end of described vehicle frame;
Be installed in the wheel hub on the second end of described vehicle frame, described wheel hub has can vertically pivot first and second that install from its horizontal expansion, and each described axle has vertical range of the angle that is included in the horizontal surface above and below;
Be installed in the wheel on each described axle; With
Thereby the device that is used to adjust the angle of each described axle and adjusts described wheel inclination when on the go in the same direction.
8. wheel hub that adjustable wheel inclination is provided on wheeled car comprises:
Hub body;
From a left side and the right axle of described hub body horizontal expansion, each described axle is suitable for support wheel, and at least one in the described axle is installed into and can vertically pivots;
Be connected to described at least one go up and be suitable for inclination control mechanism with respect to another its angle of axial adjustment.
9. wheel hub as claimed in claim 8, a wherein said left side and right axle all be pivotally mounted on the described hub body and
Wherein said inclination control mechanism is to be connected to two described axles to go up and be suitable for the dual control mechanism that two wheels on the axle provide collaborative inclination to adjust in the same direction.
10. wheel hub as claimed in claim 9, wherein said inclination control mechanism comprise respectively around a left side and the right neck ring of a described left side with right axle.
11. wheel hub as claimed in claim 10, also be included in the center shaft in the described hub body and respectively described center shaft is connected to a described left side and right axle on a left side and right universal-joint.
12. wheel hub as claimed in claim 11, wherein said inclination control mechanism can be adjusted inclination when vehicle movement.
13. wheel hub as claimed in claim 12 also comprises the drive sprocket that is installed on the described center shaft, is used for via the cushion drive parts from crank device to the there transferring power.
14. wheel hub as claimed in claim 13, wherein said wheel inclination are adjusted between inclination and the negative camber outside.
15. wheel hub as claimed in claim 14, wherein determine the size of a described left side and right axle with respect to support wheel in the above, so that in the primary importance that is equivalent to maximum negative camber be equivalent to vertically to pivot between the second place of inclination outside maximum, between used life in being equivalent to the primary importance of maximum negative camber, the top of wheel almost contacts with each other, be equivalent between used life in the second place of maximum outer inclination, the bottom of wheel almost contacts with each other.
16. wheel hub as claimed in claim 15, wherein said hub body is adapted to be mounted to the rear end of cycle frame.
17. wheel hub as claimed in claim 16, wherein said inclination control mechanism comprises the device that is used for a described left side and right wheel shaft biased downward.
18. a study by bike or the method for similar vehicles, comprising:
Wheeled car is installed, and described wheeled car has vehicle seat on vehicle frame, and this vehicle frame has a wheel at least at one end, and a pair of laterally spaced wheel is arranged on second end;
Begin to utilize the predetermined negative camber on two laterally spaced wheels to come by bike, it provides the stable beginning platform that has at the ground level place wheel at interval; With
On direction adjust the inclination of two laterally spaced wheels, to reduce the distance between the laterally spaced wheel at ground level place thereafter.
19. method as claimed in claim 18, wherein during use inclination by inclination outside negative camber is adjusted to.
20. the three-wheel vehicle that can change into bicycle, described three-wheel vehicle comprises:
Vehicle frame;
Be rotatably installed in first wheel on the end of described vehicle frame; With
Be rotatably installed in a pair of laterally spaced wheel on the second end of described vehicle frame,
Wherein said laterally spaced wheel can have interplanar relatively widely every primary importance and have between the minimum ground level second place at interval movable.
21. the four wheeler that can change into bicycle, described four wheeler comprises:
Vehicle frame;
Be rotatably installed in a pair of laterally spaced wheel on the end of described vehicle frame; With
Be rotatably installed in a pair of laterally spaced wheel on the second end of described vehicle frame,
Wherein every pair of laterally spaced wheel can and have activity between the laterally spaced second place of minimum ground level in the primary importance with relative widely flat transverse interval.
22. stable bicycle or similar vehicles comprise to improve the method for safety at rider's training period:
Provide the first and second spaced wheels so that 3 ground contacts are provided at least a operation scheme on an end of vehicle frame, described vehicle frame has at least one other wheel that is connected thereto;
A kind of three-wheel vehicle operation scheme is provided, and wherein first laterally spaced wheel has negative camber at least;
A kind of bicycle operation scheme is provided, and wherein the first laterally spaced wheel has outer inclination and from the minimum ground separation of the second spaced wheel; With
When motion, make and to change to the bicycle operation scheme from the three-wheel vehicle operation scheme;
Therefore the rider in the training can utilize 3 stable ground contacts to begin to move, and when working as on the go and reaching balance, in fact begins by bike.
23. method as claimed in claim 22, wherein said laterally spaced wheel the two in described three-wheel vehicle pattern, have negative camber and in described bicycle pattern, have outside inclination.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67807205P | 2005-05-05 | 2005-05-05 | |
| US60/678,072 | 2005-05-05 | ||
| US60/680,917 | 2005-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101247980A true CN101247980A (en) | 2008-08-20 |
Family
ID=39947881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800244796A Pending CN101247980A (en) | 2005-05-05 | 2006-03-04 | Vehicle with variable wheel camber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101247980A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442384A (en) * | 2011-11-18 | 2012-05-09 | 何宏军 | Falling preventive electric vehicle |
| CN104859767A (en) * | 2014-02-24 | 2015-08-26 | 快乐活运动有限公司 | Bicycle for leisure |
-
2006
- 2006-03-04 CN CNA2006800244796A patent/CN101247980A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442384A (en) * | 2011-11-18 | 2012-05-09 | 何宏军 | Falling preventive electric vehicle |
| CN104859767A (en) * | 2014-02-24 | 2015-08-26 | 快乐活运动有限公司 | Bicycle for leisure |
| CN104859767B (en) * | 2014-02-24 | 2017-07-04 | 快乐活运动有限公司 | Recreation vehicle |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080820 |