| US4688816A | 1987-08-25 | |||
| JPH09295596A | 1997-11-18 |
| 1. | A bicycle which is characterized that a handle at. an upper side is installed, a sad ! c at the middle upper side of the above frame which can be seated on is installed. the front and the rear rotational wheels at the both sides of frame are installed, a rotational pedal at the middle lower section of this frame (12) is installed, the secondary wheels whose diameters arc smaller than those of the main wheels are installed, and these secondary wheels (22) are connected with the front and the rear sides of wheels (16), (18) by the first frame (24) and the second frame (26). |
| 2. | According to claim 1, the above bicycle which is characterized that secondary wheels (22) are arranged in 2 rows. |
| 3. | According to claim 1, the above stated bicycle, which is characterized that a secondary wheel (22) can be detachable on the frame (12). |
| 4. | According to claim 1, the bicycle, which is characterized that a secondary wheel (22) can be detachable on the frame (12), and can be controlled in its angle. |
| 5. | According to claim 1, the bicycle, which is characterized that the outer diameters of the wheels (16), (18) and those of the secondary wheels (22) are made in the same way. |
| 6. | According to claim 1, the above stated bicycle is characterized that the rolling wheels (27) installed at the front upper parts of the wheels (16), (18) can be rotated in the angle of secondary wheel 120° steps at a cold point on a circular line. |
| 7. | According to claim 6, the bicycle which is characterized that the rolling wheels (27) is arranged in 2 rows at the above statements. |
| 8. | According to claim 1, the bicycle which is characterized that a rolling movement parts in the roller blade shape (28) are installed at the front upper parts of the wheels (16). 08). |
| 9. | According to claim 8, the bicycle which is characterised that a rolling part (28) is arranged in 2 rows. |
| 10. | According to claim 8, the bicycle which is characterized that the front part of a rolling movement part in a roller b) ade shape inclines upside. |
| 11. | According to claim 1, the bicycle which is characterized that unlimited circular wheels (30) at the front upper parts of the wheels (16). (18) arc installed. |
| 12. | According to claim 6, the bicycle which is characterized that an unlimited circular wheels (30) are arranged in 2 rows. |
| 13. | According to claim 11, the bicycle which is characterized that the front part of the unlimited circular wheel (30) inclines upside. |
| 14. | According to claim 1, the bicycle which is characterized that the wheels (16), (18) of the small diameters are composed, and these wheels (16), (18) of the small diameters are arranged in the same step at a cold point on a circular line. |
| 15. | According to claim 14, the bicycle which is characterized that the wheels (16), (18) are arranged in 2 rows. |
| 16. | According to claim 1, the bicycle which is characterized that the rolling parts installed at the front upper parts of the wheels (16), (18) can be rotated at a cold point on a circular line. |
| 17. | According to claim 16, the bicycle which is characterized that the wheels (32) of the rolling part (34) are arranged in 2 rows and this axle distance is composed shortly from the front side to the rear side. |
Generally, bicycles that equip such a multi-stepped transmission had been develop and have been using widely up to now to climb up a hill easily.
However, these kinds of bicycles cannot be used on roads that have obstacles that have certain height from the ground such as a sidewalk and such a step. This applicator presented this invention that a bicycle can easily pass over an obstacle on the road on Dec. 29. 1999.
The patent presented on Dec. 29. 1999, application No. 1999-65460. was stating that the different secondary wheel is installed additionally at the existing main wheel leaving a space with the ground.
On passing the obstacle, the secondary wheel is contacted at the obstacle firstly and makes a following wheel passed over easily and successively an obstacle.
Disclosure of Invention In case of the presented patent, application No. 1999-65460, like the above statements, the invented bicycle can overcome a low height of an obstacle on the ground but cant overcome a regular height of an obstacle on the ground like a sidewalk. That is the problem of last patent.
Based on this, as this presented patent. application No. 1999-65460. is complemented for overcoming this problem, the purpose is to provide a bicycle that can easily transfer a regular height of obstacle on the ground like a sidewalk.
Brief Description of Drawings FIG. 1 is to show the side-view of one example of the present invention.
FIG. 2 is to show the side-view of another example of the present invention.
FIG. 3 is to show the side-view of another example of the present invention.
FIG. 4 is to show the side-view of another example of the present invention.
FIG. 5 is to show the side-view of another example of the present invention on an uneven ground.
FIG. 6 is to show the side-view of another example of the present invention.
FIG. 7 is to show the side-view of another example of the present invention.
FIG. 8 is to show the top-view of another example of the present invention.
DESCRIPTION OF NUMBER ABOUT A MAIN PART OF DRAWING 10 : HANDLE 12 : FRAME 14 : SADDLE 16 : FRONT WHEEL 18 REAR WHEEL 20 : PEDAL 22 : SECONDARY WHEEL 24 : FIRST SUPPORT FRAME 26 : SECOND SUPPORT FRAME 28 : ROLLING PART 30 : UNLIMITED CIRCULAR WHEEL 32 WHEEL 34 : ROLLING PART Best Mode for Carrying Out the Invention The purpose of this invention can be achieved by a bicycle that has
a smaller diameter of the secondary wheel than a main whee) and this <BR> <BR> <BR> secondary wheel supported by the first frame and second frame is located at upper part of the front and Die rear side of a wheel. In addition, this invention includes that a secondary wheel is arranged in 2 rows. in addition, this invention includes that a secondary whee) is installed at the frame and also can be detachable out of the frame. in addition, this invention includes that a support frame is installed at a main frame and it can control the angle of a secondary wheel.
In addition, this invention includes that the outer diameter of a wheel is same as the secondary wheels.
In addition, this invention includes that a secondary wheel having three rolling wheels that are positioned evenly around circle is installed at the front upper part of the wheel and can he rotated.
In addition, this invention includes that this secondary wheel having the rolling wheels are arranged in 2 rows.
In addition, this invention includes that a secondary wheel having the rolling movement part like a roller blade shape is installed at the front upper portion of a wheel.
In addition, this invention includes rolling movement parts are arranged in 2 rows.
In addition, this invention includes the front part of a rolling movement part in a roller blade shape inclines upside.
In addition, this invention includes an unlimited circular wheel is installed at the front upper portion of a wheel.
In addition, this invention includes an unlimited circular wheel is arranged in 2 rows.
In addition, this invention includes the front part of an unlimited circular wheel inclines upper.
In addition, this invention includes that a secondary wheel consists of several wheels that have small diameter and are positioned evenly around the circle.
In addition, this invention includes that the wheels are arranged in 2 rows.
In addition, this invention includes that a secondary wheel at the
front upper part of a wheel consists of several rolling wheels that arc positioned evenly around the arc.
In addition. this invention includes that the wheels of rolling part are arranged in 2 rows and an unlimited circular wheel composes the upper incline (l.
If we explain it more in detail, an example of the present invention by the attached drawing is like this.
FIG. 1 is to show the side-view of one example of the present invention.
To explain Fig. 1, a frame (12) with a hand) e 00) at the upper side is equipped, and a saddle (14) at the middle upper side of the frame which can be seated on is installed.
The front wheel (16) and the rear wheel (18) at both side of frame (12) are installed to be rotated, and a pedal at the middle lower section of this frame (12) is installed to rotate the wheels (16), (18).
A diameter of the secondary wheel (22) which is smaller than a diameter of the wheel (16), (18) is installed, and this secondary wheel (22) is located at the front and the rear side of the wheel (16), (18) by the first frame (24) and second frame (26).
The secondary wheel (22) is desirable that the wheel of rolling part is arranged in 2 rows for contacting on the ground and the secondary wheel (22) is installed at the frame (12) can be detachable.
It is desirable that a support frame (24), (26) is installed at the frame (12) to control the angle of the secondary wheel.
When the bicycle composed of like the above statements passes an obstacle like a sidewalk, we explain its condition and effectiveness.
When the front wheel (16) contacts with the side of an obstacle like a sidewalk, the secondary wheels at the front upper portions of the wheels (16), (18) are located at the upper side of an obstacle by the support frames (24), (26).
On riding a bicycle, it contacts with an obstacle like a sidewalk.
The front wheel of a bicycle (16) contacts with the side of an obstacle and at the same time a secondary wheel (22) contacts with the upper side of an obstacle.
At this moment, as a secondary wheel (22) contacts with the upper
side of the obstacle, the front part of bicycle is lifted up a little.
When a secondary wheel (22) contacts with the obstacle, the front part of bicycle is lifted a little. And when an user presses a (20), <BR> <BR> a bicycle by the rolling movement of the front wheel 06) and the secondary wheel (22) goes forward on the obstacle.
At this time, the rear wheel (18) passes the obstacle as the same method like the above statements.
On contacts a top side of an obstacle, the secondary wheels (22) installed at the front parts of the wheels (16), (18) can be transfer on the obstacle and so a bicycle passes over easily such an obstacle as a sidewalk.
In addition, a user is protected safely from the impact which is occurring by the secondary wheels (22) which are installed at the rear uppers of the wheels (16), (18) because it is absorptive.
FIG. 2 is to show the side-view of another example of the present invention.
As the drawing in Fig. 2, though outer diameters of the wheels (16), (18) are same with those of the secondary wheels (22), we can get the same effectiveness like the upper statement.
In addition, the outer diameter of secondary wheel (22) isn't limited at Fig. 2. And it can be modulated optionally.
FIG. 3 is to show the side-view of another example of the present invention.
As the drawing in Fig. 3, when the front upper portions of the wheels (16), (18) are composed of the same diameters, we can get the same effectiveness like the upper statement.
FIG. 4 is to show the side-view of another example of the present invention.
As the drawing in Fig. 4, when a rolling parts like the roller blade shape at the front upper parts of the wheels (16), (18) are installed, we can get the same effectiveness like the upper statement.
In addition, the rolling part (28) is arranged in 2 rows and the contact area is maximized, then, though the rolling part contacts with an obstacle, we can protect to slip by the impact.
In addition, it is desirable that the angle modulation of the
rolling part (28) can be controlled optional) y by a spring.
FIG. 5 is to show the side-view of another example of the present invention.
As the drawing in Fig. 5, when the unlimited circular wheels (30) are installed in the front upper portions of the wheels 06). (18) : we can get the same effectiveness like the upper statement.
In addition, the unlimited circular wheel (30) is arranged in 2 rows and the contact area is maximized, then, though the unlimited circular wheel (30) contacts with an obstacle, we can protect to slip by the impact.
In addition, it is desirable that the angle modulation of the unlimited circular wheel (30) can be controlled optionally by a spring.
FIG. 6 is to show the side-view of another example of the present invention.
As the drawing in Fig. 6, a wheel is composed of a small diameter and it is arranged on a circular line with same step at a central point, we can get the same effectiveness like the upper statement.
In addition, the wheels (16), (18) are arranged in 2 rows and the contact area is maximized, then, though the unlimited circular wheel (30) contacts with an obstacle, we can protect to slip by the impact.
FIG. 7 is to show the side-view of another example of the present invention.
As the drawing in Fig. 7, the rolling parts (34) in which several rolling wheels (32) are positioned evenly around the arc are installed at the front upper parts of the wheels (16), (18). And they (34) can be rotated at a cold point on a circular line. Then we can get the same effectiveness like the upper statement.
FIG. 8 is to show the top-view of another example of the present invention.
As designed at the Fig 8, the wheel of rolling part (34) consists of 2 rows ; the distance of this wheel (32) axle is composed shortly from the front to the rear.
Like the above statements wheels (32) of the rolling part (34) are arranged in 2 rows and the contact area is maximized. When the wheels (32) of the rolling part (34) contact with an obstacle, we can protect to slip by the impact.
Industrie ! Applicability As the above statements a bicycie of this invention has such a sccondary wheel that is additionally equipped at cach front and rear wheel of bicycle So it passes over easilv such an obstacle as a sidwealk.