JP2008222141A - Vehicle with high amusement characteristics - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-wheel or four-wheel vehicle with high amusement characteristics capable of traveling on a narrow course at a safe speed. <P>SOLUTION: The vehicle is the front wheel drive vehicle having power on a front wheel upper part, and a rear wheel is equipped with a caster tire of which caster rotation is restricted. Regarding traveling, spin or drift at a low speed is possible, and high amusement characteristics which cannot be achieved by the conventional one can be achieved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a highly playable vehicle capable of traveling similar to drift traveling by moving a caster of a rear wheel caster tire when turning at a safe speed.

Conventionally, as a play vehicle, it is used for a vehicle in which a rear wheel caster tire moves freely.
In the case of the front wheel drive of the above invention, the frame has a seat, a handle, an accelerator, a brake, etc., and a caster tire is attached to the rear wheel, and the caster is inclined forward and inward by a spring. It was a towing structure.

Conventionally, in a three-wheel front-wheel drive amusement vehicle, an engine or an electric motor is provided beside the tire. Therefore, the balance of the handle is poor and the operability is problematic. Also, a high-power engine or electric motor could not be installed. Further, since the caster movable range of the rear wheel caster tire was not limited, it was very dangerous because the vehicle body would move in the direction opposite to the advancing direction when turning while the vehicle was running and suddenly reverse. Also, when the rear wheel caster tires are connected by a spring, when the vehicle turns suddenly, the caster of the rear wheel caster tire rotates and winds up the spring, or the spring becomes too strong. The tires did not rotate on casters, and the rear wheels flowed outside the turning circle. Also, the brakes could not be installed on the rear wheels. In addition, since the operator is seated on the seat, it is difficult for the operator to move the weight, and the playability is low.

  According to the first aspect of the present invention, an engine or an electric motor is driven by a chain or a belt on a front wheel, which can be steered by a front wheel handle, and a rear wheel is a three-wheel or four-wheel vehicle with a free caster tire. As a result, a high-power engine or the like can be mounted and the balance of the handle can be improved. Further, the drive ratio of the engine or the like can be changed only by replacing the sprocket or the pulley. Therefore, the load applied to the front wheel can be increased, and the wheel spin during sudden acceleration can be suppressed. In addition, the driver can stand up while riding and can move more actively if he / she moves weight. For example, since the front wheels are driven at the time of sudden start, the wheel spin is likely to occur. However, the wheel spin can be reduced by the operator moving weight in the forward direction. In addition, when the driver moves his / her weight in the left or right direction while going straight ahead, the rear part of the vehicle body flows in that direction, and the movement which is not found in the conventional rear wheel fixed type vehicle body is increased, so that playability is enhanced. In particular, at the time of sudden turning, the minimum turning radius is very small, so that very high centrifugal force and inertial force act. It has higher playability than these.

  According to a second aspect of the present invention, an engine with a continuously variable transmission is provided on the front wheels, suspensions are provided at the lower part of the steering wheel, and the rear wheels are three-wheelers and four-wheel vehicles with universal caster tires. When this engine is provided with an automatic centrifugal clutch, it becomes an auto-matching only for the accelerator operation, and the operability is improved. In addition, since there is an engine at the upper part of the front wheel, it becomes difficult to cause foil spin. Furthermore, the burden on the vehicle body and the operator is reduced by the suspension effect.

  According to a third aspect of the present invention, the front wheel portion according to the first aspect is provided with an engine or an electric motor at the rear upper portion of the tire, and includes a chain or a belt pretensioner and a suspension, and the rear wheel is a three-wheel and four-wheel vehicle with a free caster tire.

  According to a fourth aspect of the present invention, in the first, second, and third aspects, the structural frame that can move by about −90 degrees to about +90 degrees when the rear wheel caster rotation angle is set to 0 degrees in the vehicle body direction. Castor tire.

  According to claim 5 of the present invention, in the first, second, and third aspects, when the rotation angle of the caster is 0 degree in the vehicle body direction, the upper part of the rotary caster part is movable so as to move from about -90 to about +90 degrees. A rear wheel caster tire having protrusions and an adjustment bolt nut on a caster base portion.

  A sixth aspect of the present invention is the rear wheel caster tire according to the fourth or fifth aspect, wherein the rear wheel caster tire is provided with a disc brake or a drum brake. In addition, the brake hose is not easily protected or caught by covering the spring.

  A seventh aspect of the present invention is the caster tire according to the fourth or fifth aspect, wherein the caster tire itself fixes the caster rotation so that the tip can be inserted into the caster frame portion and the pin can be inserted into the main body frame.

With the above, you can travel unprecedented even at a safe speed and narrow course. The movement is similar to drift driving, and it is rich in acrobatic driving such as a sharp turn and spin that cannot be done by a non-steered vehicle. Slightly poor operability, but this improves playability and has the potential for motor sports.
Of course, the same movement can be achieved even in the case of an electric motor and a non-powered vehicle body. For example, if you run on a slope with a vehicle without power, you can run unprecedented, and it can be an extension of the kickboard that goes down while spinning.

  Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

  FIG. 1 shows a three-wheel type according to the first and fourth embodiments of the present invention. A front fork 2 is joined to the lower portion of the handle 1, and is composed of a vehicle body 3 and a bearing like a bicycle. When the handle 1 is moved, the front fork 2 moves accordingly. An engine 4 is mounted on the front fork 2, and power is driven to the front wheel tire 6 via a chain or belt 5. The throttle 7 of the engine 4 is attached to the right side of the handle 1, and brake levers 8 and 9 are also attached. Fuel is put into the fuel tank 10 and the engine 4 is started by the recoil starter 11. Of course, a kick starter or a cell starter may be used. Then, exhaust gas is exhausted from the muffler 12. If the engine 4 is provided with an automatic centrifugal clutch, the power is transmitted to the front tire 6 simply by twisting the throttle 7. The driver gets on boarding step 13 and holds the handle 1 and gets in a standing posture or a middle waist posture. The riding step 13 is subjected to anti-slip processing such as rubber processing. When starting off, the vehicle starts to run in the direction of the handle 1 and the front wheel tire 6. When the vehicle is running at low speed, when the operator turns the steering wheel 1 to the left, centrifugal force works in the right direction of the vehicle, the rear wheel caster tire 14 is casted in the right direction of the vehicle, and the tire moves in the right direction of the vehicle. Move. Further, if the operator continues to turn the handle 1, the vehicle body tends to turn in the direction opposite to the traveling direction by inertial force. Therefore, when the caster rotation angle of the rear wheel caster tire 14 is set to 0 degrees in the vehicle body direction, the movement is limited to about −90 degrees to about +90 degrees. The caster frame 15 comes into contact with the left and right of the limit bar 16, and the caster cannot rotate any more. The contact surfaces of the caster frame 15 and the restriction bar 16 may be provided with a protective cover such as rubber. Also, if bolts and nuts are applied to the contact points of the restriction bar 16, the caster rotation can be adjusted more narrowly, and the maneuvering becomes easy. As a result, the vehicle body suddenly brakes and stops. So-called spin is possible. On the other hand, when the pilot is running, the steering wheel 1 is turned to the left and the rear wheel caster tire 14 moves to the right in the traveling direction. When the pilot turns the steering wheel 1 to the right, the spin is prevented and the vehicle body is turned to the left. So-called drift running is possible. These can of course move the same when turned to the right. Therefore, it is possible to run difficult operations at a safe speed, and if it improves, it becomes very acrobatics. On the other hand, turning as described above at medium and high speeds enables more drastic spin and drifting, and the operator needs techniques such as appropriate weight movement and steering operation, so that the playability becomes very high.

FIG. 2 shows a three-wheel type in the embodiments of the second, fourth and sixth aspects of the present invention. An engine 18 with an automatic transmission is applied to the upper front portion of the front wheel tire 17, and a suspension 20 is provided via a link 19. They move in the same way as the handle 21 is moved. Except for the area around the engine 18 with automatic transmission, it is the same as FIG. As a result, the power performance becomes higher.

In the case of FIG. 3, an engine 29 is provided at the upper rear portion of the front tire 28 in the embodiment of the third aspect of the present invention. They transmit power via a chain or belt 30. They can be optimally tensioned with a chain or belt pretensioner 31. The engine 29 is fixed to the upper part of the front wheel arm 32, and includes a link 33 and a suspension 34. Fuel is supplied from the fuel tank 35 and exhaust gas is discharged from the muffler 36. The vehicle body 37 and the handle 38 are the same as those in the first and second aspects. The traveling itself is the same.

In the case of FIG. 4, in the embodiment of claim 3 of the present invention, the opposite side of FIG. 3 is shown. The front tire 28 is provided with a brake disc 41 and can be braked with a disc caliper 40. These are also possible with a drum brake. The engine is started with the recoil starter 42. Of course, kick starters and cell starters are also possible. The rest is the same as FIG. 3 and the traveling itself is the same.

In the case of FIG. 5, in the embodiment of claim 5 of the present invention, in claim 1, claim 2 and claim 3, the caster rotation is movable from about -90 to about +90 degrees when the vehicle body direction is set to 0 degrees. A projection 44 is provided on the upper part of the caster frame 43, and an adjustment bolt nut 46 is attached to the caster base part 45. These are also applied on the opposite side of the drawing. The adjustment bolt nut 46 can be slid, and the caster rotation limit can be adjusted according to the operator's preference. Of course, the rear wheels are paired.

In the case of FIG. 6, in the embodiment of claim 5 of the present invention, the rear wheel tire 47 rotated by the caster of FIG. 5 is rotated in the lateral direction. At this time, the protrusion 44 is blocked by the adjusting bolt nut 46 and cannot be rotated further. The caster base portion 45 is provided with an elliptical mounting hole so that the adjustment bolt nut 46 can slide. Further, the protrusion 44 and the adjustment bolt nut 46 may be provided with a protective cover made of rubber or the like. On the other hand, the caster rotation is limited in the same manner. Of course, the rear wheels are paired. Therefore, similarly to the fourth aspect, when the rotation angle of the caster is set to 0 degree in the vehicle body direction, it can be limited to be movable from -90 degrees to +90 degrees. The effect can also prevent the vehicle body from traveling backward as in FIG.

In the case of FIG. 7, in the embodiment of claim 6 of the present invention, the caster rotation of the rear tire 49 is limited in claim 4 or claim 5, so the disc caliper 50 and the brake hose 51 can be applied. . The function is the same as the conventional one and can be braked.

In the case of FIG. 8, in the embodiment of claim 6 of the present invention, the caster-rotated rear wheel tire 49 of FIG. 7 is rotated in the lateral direction. Since the caster rotation is limited, the brake hose 51 can be braked without being wound around the caster frame 52. The brake hose 51 is protected by a spring, and unnecessary slack is eliminated. Also, these rear wheels can be paired to control the vehicle body safely.

In the case of FIG. 9, in the embodiment of claim 7 of the present invention, in claim 4 or claim 5, the pin 58 is inserted into the fixed tip portion 56 and the main body frame side fixed tip portion 60 in the caster frame 55 portion. The caster tire 59 is fixed without rotating the caster. When both rear wheels are fixed, the same movement as a conventional vehicle can be achieved. In particular, it is inconvenient because it cannot be backed by hand unless it is fixed when the vehicle body is folded. Further, if the main body frame side fixed front end portion 60 is bent to the left in front of the main body frame 57 and the fixed front end portion 56 is bent to the left accordingly, it can be fixed in the same manner as in FIG. Furthermore, if the vehicle body is equipped with safety parts and seats, it can be used for public roads, and it can be used as a general vehicle up to a special course.

  Since the game vehicle according to the present invention can be industrially mass-produced, it has industrial applicability.

The perspective view of a three-wheel vehicle. The side view of a three-wheel vehicle. The side view of a front-wheel part. The side view of a front-wheel part. The side view of the rear-wheel part with a rear wheel straight with respect to a vehicle body. The side view of a rear-wheel part with a rear wheel facing a vehicle body sideways. The perspective view which gave the disc brake to the rear wheel. The side view of the rear-wheel part which gave a disc brake to a rear wheel and a rear wheel is sideways with respect to a vehicle body. The perspective view which fixed the caster rotation of the rear-wheel tire.

Explanation of symbols

1 Handle 2 Front fork 3 Body body 4 Engine 5 Chain or belt
6 Front wheel tire 7 Throttle 8 Brake lever 9 Brake lever 10 Fuel tank 11 Recoil starter 12 Muffler 13 Riding step 14 Rear wheel caster tire 15 Caster frame 16 Limit bar 17 Front wheel tire 18 Engine with automatic transmission 19 Link 20 Suspension 21 Handle 22 Fuel Tank 23 Carburetor 24 Mudguard 25 Body body 26 Rear wheel caster tire 27 Brake caliper 28 Front wheel tire 29 Engine 30 Chain or belt 31 Chain or belt pretensioner 32 Front wheel arm 33 Link 34 Suspension 35 Fuel tank 36 Muffler 37 Body body 38 Handle 39 Mud Protect 40 Disc caliper 41 Brake disc 42 Recoil starter 43 Key Star frame 44 Protrusion 45 Caster pedestal portion 46 Adjustment bolt nut 47 Rear wheel tire 48 Body frame 49 Rear wheel tire 50 Disc caliper 51 Brake hose 52 Caster frame 53 Brake disk 54 Body frame 55 Caster frame 56 Fixed tip 57 Body frame 58 Pin 59 Castor tire 60 Main frame side fixed tip

Claims (7)

Engines or electric motors are driven by chains or belts on the front wheels, which can be steered by the front wheel handle, and the rear wheels are three-wheelers and four-wheelers with universal caster tires. An engine with a continuously variable transmission is installed on the front wheels, suspensions are applied to them and the lower part of the steering wheel, and the rear wheels are three- and four-wheeled vehicles with universal caster tires. The front wheel portion according to claim 1 is provided with an engine or an electric motor at a rear upper portion of the tire, and includes a chain or a belt pretensioner and a suspension, and the rear wheels are a three-wheeler and a four-wheeler vehicle with a free caster tire. 4. The rear wheel caster tire according to claim 1, wherein the caster rotation angle is movable by approximately −90 to +90 degrees when the vehicle body direction is set to 0 degrees. In Claim 1, Claim 2, and Claim 3, when the caster rotation angle is set to 0 degrees in the vehicle body direction, the caster rotation angle has a protrusion at the upper part of the caster part so that the caster rotation angle can be moved by about -90 to +90 degrees. Rear wheel caster tire with caster rotation limit bar. 6. The rear wheel caster tire according to claim 4 or 5, comprising a disc brake or a drum brake. 6. The caster tire according to claim 4 or 5, wherein a pin is inserted into a tip portion and a main body frame in a caster frame portion to fix caster rotation of a caster tire.

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