KR20050079994A - A bicycle worked by handle operating - Google Patents

Abstract

[Purpose of invention]

The present invention relates to a bicycle that can drive the rear wheel even by steering wheel operation, the conventional bicycle is most of the bicycle to drive the rear wheel by the rotational movement of the foot pedal using the legs and feet, and the inventions that can be driven by the steering wheel operation However, even if the steering wheel and the foot pedal are combined or separated, the steering wheel is driven by the front-wheel drive method, which is unnatural when the hands (arms) and the feet (legs) are used simultaneously. It was designed to improve them.

[Configuration of Invention]

According to the present invention, the rotational force of the auxiliary handle handle 5 is converted into a shaft (a shaft for changing the rotational force from the bevel gear to the chain gear) by the bevel gear 25 newly installed inside the handle bar, and the chain ring joining element. The gear 12, the chain ring 14, the sprocket, etc. are rotated in order to drive the rear wheel.

[Effects of the Invention]

By installing the bevel gear inside the newly installed handle bar, the chain gear which is the one-way gear of the connected conversion shaft, and the one-way power transmission device between the bottom bracket and the chain ring, ① By using the arm handle alone ② The foot by foot Only three pedals can be used to achieve these three driving methods, such as using the steering wheel and foot pedals simultaneously.

Description

A bicycle worked by handle operating}

Conventional bicycles mostly drive the rear wheels with the rotational force of the foot pedal using the force of the legs. Recently, a low-power bicycle that can be operated by steering wheel has been devised, but it is inadequate. First, the design of the steering wheel combined with the movement of the foot pedal is not easy to learn for the first time, there is a disadvantage that must always move hands (arms) and feet (legs) together while driving. Second, even if the handle operation and the operation of the foot pedal is devised, the operation by the handle is a front wheel drive method, so when the steering wheel operation and the operation of the foot pedal at the same time uncomfortable movement of the body is uncomfortable. When a person walks or runs fast, the movements of the legs and the movements of the arms must be left and right shifted (the right arm moves forward when the left foot moves forward), while the arms and legs always move in a 1: 1 ratio. You can get it. In particular, when you are going uphill or running fast, lift your hips off the saddle and press the pedals. When you pedal with your right foot, you tilt your bike to the left and when you pedal with your left foot, you tilt your bike to the right. Like this, the arm and leg rotation ratio must be 1: 1 so that a natural and comfortable posture can be obtained.

Therefore, in order to have a natural movement, the pedal operation must be one rotation when the steering wheel is rotated once. However, when the steering wheel is driven by the front wheel, the same system that transmits the foot pedal's rotational force to the rear wheel must be applied to the new steering wheel transmission process in order for the front wheel to be turned one rotation in one revolution. In other words, if the same system as the foot pedal is newly installed on the handle part and operated from one side, both sides must be shifted together.

In order to solve this problem, a rear wheel driving method is required in which the steering force is connected to the chain ring of the foot pedal unit to transmit both rotational forces to the rear wheels.

It is very important for safety that the brake operation is performed quickly while riding the bicycle. From this point of view, when the bicycle is operated by the steering wheel, when the brake needs to be braked, the hand needs to be moved to the handle with the brake lever, so there is a time difference between the wheels.

In addition, it is difficult to use the steering wheel operation in the sharp curve, and it is cumbersome to move the hand in advance for safe braking on the downhill road.

In order to solve the problem of the front wheel driving method by the handle, two conditions are required. First, when the hand pedal 5 of the handle part rotates once, the ratio of the gears in contact with each other of the bevel gears 25, 26, 28 must be 1: 1. making. The conversion shaft (shaft for changing the rotational force from the bevel gear to the chain gear) should also be manufactured and installed at a gear ratio of 1: 1 with the small gear 12 joined to the chain ring. Second, the conversion shaft chain gear 11 is equipped with a one-way gear (see Fig. 6-1) so that the rotational force is chained by the chain only when the inner shaft is rotated forward (clockwise). And the one-way power transmission device (one-way gear, figure) between the bottom bracket 13 and the chainring 14 so that no power is applied to the bottom bracket 13 of the foot pedal part. 6-1) so that the bottom bracket is rotated only by the rotational force of the foot pedal to transmit power to the rear wheel, so that the power generated from the hand pedal and the power generated from the foot pedal are separated from each other. Even if it is stopped, it eliminates mutual interference and interference on the other side, and complements and supplements only when both powers are used simultaneously. That is, when the hand pedal rotates, the chain ring 14 rotates to drive the rear wheel, but no force is applied to the bottom bracket 13, which is the crankshaft. ② When the foot pedal rotates, the chain ring 14 rotates to the rear wheel. Although the drive shaft is rotated, the conversion shaft chain gear 11 connected by the chain is rotated, but no force is applied to the conversion shaft 29. This is because the conversion shaft chain gear 11 and the chain ring 14 are rotated only in the forward direction (clockwise) by the conversion shaft 29 which is an inner axis and the bottom bracket 13 which is the crank shaft, and are not rotated in the reverse direction. . In addition, even if the conversion shaft chain gear 11 and the chain ring 14 itself are rotated in the forward direction by external power, the conversion shaft 29 and the chain ring joint small gear 13 which are internal shafts are not rotated. By this principle, the operation of the hand pedal and the operation of the foot pedal can be completely separated and simultaneously operated. The fork 19 is opened in a V-shape (see Fig. 4) and bent close to a right angle again to remove friction with the auxiliary power transmission connecting case 8 when the handle is turned left and right on a curve road (see Fig. 3). ) Make it longer to lower and avoid friction with the tires. In addition, the left and right auxiliary handles 5 of the handles are provided with right angle handle arms 4.6 at the left and right ends of the handle shafts so as to easily rotate the handle shafts 3 so that the left side can be folded at right angles. The right side makes the handle arm 6 rotatable 180 degrees horizontally with the left side and the handle 5 again folds at right angles.

If the rotational force of the hand pedal is not used, the right handle arm 4 facing in the opposite direction is rotated 180 degrees to form a parallel line in the same direction as the left side. Then, the angled handle is extended to the handle arm and pushed toward the handle arm to shorten the length as if the antenna is folded. In this shortened state, if the handle tip is fixed by installing the locking device 24 in a state of lifting about 60 degrees from the horizontal line, it is not greatly cumbersome. It can also be used as an auxiliary handle when brake action is unnecessary.

If this invention is put into practical use ① arm when driving long distance. You can reduce the fatigue of the legs by alternating legs, ② When riding a bicycle for the purpose of exercise, lower body movement as well as physical exercise can be balanced by the upper body movement ③ arm. Fast speeds can be achieved with simultaneous use of legs. In addition, even if you are a little uncomfortable with your legs, you can ride the bicycle with a steering wheel.

1 is a cross-sectional view of the auxiliary handle position and shape

(Fig.1-1) When using auxiliary power (hand pedal)

(Fig. 1-2) When not using auxiliary power (hand pedal)

(Fig. 2) Cross section inside handle bar

3 is a cross-sectional view of the connection between the lower end of the head and the fork

(Fig. 4) Top view of the handle part and the fork

Fig. 5 is a cross-sectional view of the conversion shaft case and the chain ring portion.

(Fig.6) Structural comparison sectional view of the principle of the one-way gear (one-way power transmission device) when using the forward (clockwise) rotation force

(Fig. 6-1) When the inner shaft a is the power source and the outer chain gear b is the driven source

(Fig. 6-2) When the outer chain gear b is the power source and the inner shaft a is the driven source

※ Explanation of code for main part of drawing

1. handlebar 2. handlebar handle

3. Handle shaft 4. Left handle arm

5. Auxiliary handle (hand pedal) handle 6. Right handle arm

7. Head tube 8. Auxiliary power transmission connection case

9. Auxiliary power transmission shaft 10. Auxiliary power conversion shaft case (bevel gear → chain gear)

11. Conversion shaft chain gear 12. Chain ring joint small gear

13. Bottom bracket 14. Chain ring

15. Crank Arm 16. Foot Pedal

17. Auxiliary Power Chain 18. Down Tube

19. Fork 20. Inner shaft support bearing

21. Auxiliary handle shaft 22. Handle shaft support bearing

23. Connection pin 24. Auxiliary power lock

25. Bevel Gears 26. Bevel Gears

27. Mudguards 28. Bevel Gears

29. Conversion shaft 30. Auxiliary lock bearing 31. Head (head shaft)

Claims (3)

Newly installed bevel gears on the left side of the inner center of the handlebars at right angles to the head, and the bevel gear shafts (handle shafts) inside the handlebars are connected left and right at right angles to the left and right ends of the handlebars 180 ° Make a handle auxiliary handle in the direction perpendicular to the handle bar at the end of each handle arm again and rotate the left and right handles clockwise up, down, front and back, and the rotational force is transmitted to the bevel gear installed inside the head and It is a rear wheel drive type that transfers the rear wheels through the bevel gears to the shifting shaft fixed to the outside of the down tube (the shaft that transfers the power from the bevel gear to the chain gear). Bicycle with two control modes: steering wheel (hand pedal) and foot pedal The method according to claim 1, wherein the handle auxiliary handle should be able to reduce the volume of the two parts by enclosing the handle arm from the outside like an antenna, and the conversion shaft chain gear and the chain ring must be one-way gear (Fig. 6-1) is equipped with one-way gear (see Fig. 6-1) which acts inversely, and the two gears of the three bevel gears 25, 26 and 28 which are in contact with each other must have a gear ratio of 1: 1. The two gear ratios of the conversion shaft chain gear 11 connected by the chain and the small gear 12 joined to the chain ring must also be 1: 1. The bevel gear 28 (bevel gear which abuts at right angles to the auxiliary power transmission connecting shaft supported by the downtube as shown in FIG. 5) and the conversion shaft chain gear of Claim 2 must have the same axis, and must be between the chain gear and the shaft. 6-1 has a one-way power transmission device whose inner shaft is a power source, and a small gear of the same size as the conversion shaft chain gear is necessarily joined to the left side of the chain ring, and the chain ring portion and the bottom bracket (crank) With the same one-way power transmission between which the inner shaft is the power source