KR20060084827A - 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.

There are inconveniences in my first design, so I changed the steering wheel operation method to compensate for this. But the fundamental principles of the other parts remain the same.

[Configuration of Invention]

The present invention is a spur gear (31, 33) bevel gear (25, 26, 28) conversion shaft by attaching a one-way gear at the lower end of the left and right handle bar is bent at a right angle when pushing and pulling the handle handle (2) back and forth (Axle that rotates rotational power from bevel gear to chain gear) Chain gear 11 Chainring joining small gear 12 and chainring 14 sprocket are rotated in order to drive rear wheel.

[Effects of the Invention]

By installing a bevel gear inside the newly installed head axle, a chain gear that is a one-way gear of the connected conversion shaft, and a one-way power transmission device between the bottom bracket and the chain ring, ① using only the arm handle ② By using the foot pedal alone, the three driving methods can be obtained, such as using the steering wheel operation and the foot pedal operation simultaneously, and various effects can be expected.

Description

A bicycle worked by handle operating}

(Fig. 1) Front sectional view of the head shaft and the handle portion

(Fig. 2) Right side view of the head shaft and the handle portion

(Figure 3) Form and arrangement of handlebar left and right cross reciprocating induction gear

Fig. 4 is a plan view of the handle portion and the fork, and a figure of the handle locking brake

 (Fig. 4-1) Top view of handle part and fork

 (Fig. 4-2) Left side and back view of the handle lock brake

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. Brake lever 4. Head (head shaft)

5. Auxiliary handle knob 6. Handlebar retaining pin

7. Head tube 8. Handlebar fixing lever

9. One-way gear at the bottom of the handlebar 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. Forks 20. Auxiliary Power Chain

21. Reciprocating angle limit pin 22. Auxiliary power chain induction top chain gear

23. Conversion shaft case support tube 24. Auxiliary power chain induction lower chain gear

25. Bevel Gears 26. Bevel Gears

27. Mudguards 28. Bevel Gears

29. Conversion shaft 30. Handle lock brake

31. Large spur gear 32. Handle lock brake disc

33. Small spur gear 34. Handle lock brake lever

35.Top tube 36.Head shaft top case

37. Support Bearing 38. Head Shaft Lower Expansion Case

39. Handlebar left and right cross reciprocating induction gear

40. Handlebar Response Gear of Handlebar Left / Right Cross Reciprocating Induction Gear

41. Handle lock brake release lever

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 natural and comfortable state when the arms and legs always move at 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. Thus, when the steering wheel is driven by the front wheel, the same system that transmits the foot pedal's rotational force to the rear wheels must be applied to the new handleless power transmission process in order for the front wheel to turn one turn in one revolution. That is, if the same system as the foot pedal unit is newly mounted on the handle unit 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, in the first design, when the bicycle needs to be braked by the steering wheel, the hand should be moved to the handle with the brake lever. There is a cumbersome point to grab, and to improve this point, the steering wheel operation method is changed. However, this also has a disadvantage that is difficult to use in a sharp curve.

In order to solve the problem of the front wheel driving method by the handle, two conditions are required. First, when the handle handle (2) of the handle part reciprocates once and back, the foot ring chain ring (14) also installs a limiting pin (21) to limit the reciprocating angle so that the chain ring (14) is only one rotation. If the maximum reciprocating angle is 60 degrees, the gear ratio of the large and small spur gears 31 and 33 is set to 3 to 1, and 45 degrees to 4 to 1 (when the reciprocating angle is 180 degrees, it corresponds to the foot pedal rotation angle. In order to amplify the angle, a large spur gear (31) is additionally installed) and the ratio of the gears in contact with each other of the bevel gears (25, 26, 28) must be 1: 1. 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 one-way gear (see Fig. 6-2) where the external gear is the power source must be installed at the bottom of the handlebar , and the conversion shaft chain gear 11 is equipped with the one-way gear (see Fig. 6-1) and the conversion shaft as the inner shaft. Only during this forward (clockwise) rotation is the rotational force transmitted by the chain to the chain ring joint small gear 12 and the chain ring 14 of the foot pedal part, while the foot bracket part 13 is not energized. The one-way power transmission device (one-way gear, see Fig. 6-1) is also installed between the bottom bracket 13 and the chain ring 14 so that the bottom bracket is rotated only by the rotational force of the foot pedal to transmit power to the rear wheels. The power generated by the handlebars and the power generated by the foot pedals are separated from each other, eliminating mutual interference and interference on the other side, even if one side of operation is stopped. Complement only when used simultaneously. It should be supplementary. That is, ① the chain ring 14 rotates to drive the rear wheel during the forward and backward reciprocation of the handlebar, but no force is applied to the bottom bracket 13, which is the crankshaft, and ② when the foot pedal rotates, the chain ring 14 rotates. Although the rear wheel is driven, no force is applied to the conversion shaft 29 even if the conversion shaft chain gear 11 connected by the chain is rotated. This is because the conversion shaft chain gear 11 and the chain ring 14 are rotated only in the forward direction (clockwise) and not in the reverse direction by the conversion shaft 29 as the inner axis and the bottom bracket 13 as the crank shaft. . 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 handlebar and the operation of the foot pedal can be completely separated and simultaneously operated. And the shape of the fork 19, when the handle is turned to the left and right on the curve road, in order to eliminate the friction with the auxiliary power conversion case 10, spread in a V-shape (see Fig. 4) and bent back to a right angle again (see Fig. 2) Make it longer to avoid friction with the tires. In addition, when turning the handlebar back and forth, the phenomenon such as turning the handle for the curve occurs, and the front wheel shakes violently from side to side. It is designed so that there is little friction between the head and the head tube, so it is very sensitive to operator hand movements. However, this is a very inconvenient disadvantage in driving the bicycle by the steering wheel handle, but to compensate for this, the steering wheel locking brake 30 is installed to slow down the sensitive reaction. The brake acts like a side brake of a car, and can be applied and installed so that the brake strength (braking degree) can be adjusted according to the driver's intention and can be released with one touch. Therefore, while slowing the sensitive response, the force of both hands (arm) to turn the handle can be enough curve. And to use only the foot pedal, the handlebar fixing pin (6) and lever (8) was installed to secure the handlebar to give a sense of safety. Handlebar fixing pin (6) and the handle lock brake 30 is most preferably used to operate opposite to each other. The handlebar retaining pin unlocks and the handle brake applies proper braking when driving with handlebars. On the other hand, when not driven by the steering wheel, it is recommended to ride the bicycle with the handle brake released and the handlebar fixing pin locked. In addition, the auxiliary handle knob (5) was installed to facilitate the handlebar according to the driver.

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, ④ even if the legs are a little uncomfortable if you can only maintain the balance at rest, you can ride a bicycle by mounting a small auxiliary wheel on the left and right rear wheels.

Claims (3)

The center part of the handlebar is separated from the existing bicycle, and the center part is extended at right angles to the left and right handlebars, and the one-way gear (one-way power transmission) 9 is attached to the lower end of the case to extend the lower part of the head shaft. Install a shaft with a large spur gear 31 formed at the top and protrude both ends of the shaft to the outside of the hole drilled in the left and right walls of the case and engage it with the one-way gear above. The driving force is generated by rotating the large spur gear by the gear. This is transmitted to the small spur gear 33 and the bevel gear 25 at the upper end, and the bevel gear 28 fixed to the outside of the down tube via the bevel gear 26 in the middle and the conversion shaft (bevel gear to chain gear) Is transmitted to the chain gear 11, which is then transferred to the chainring to which the small gear is joined, and the rear wheel driving method for driving the rear wheel. The bicycle is equipped with two operation methods for the operation of the handlebar and the foot pedal. The one-way gear (see Fig. 6-2) in accordance with the principle of the freewheel installed on the rear wheel hub where the external gear is the power source must be attached to the bottom of the handlebar, and the inner shaft must be attached to the conversion shaft chain gear and the chain ring. It is equipped with one-way gear (see Fig. 6-1) as a power source, and the two gears of the three bevel gears 25, 26, and 28 which contact each other have a gear ratio of 1: 1, and are connected by a chain. The shaft gear (11) and the small gear (12) joined to the chain ring have two gear ratios of 1: 1. In addition, the bicycle is provided with a brake to slow down the sensitive response of the steering wheel when the handlebar is operated, and an induction gear 39 so that the handlebar can be reciprocated automatically when the handlebar is moved back and forth. The bevel gear 28 (bevel gear which abuts at right angles to the auxiliary power transmission connecting shaft supported by the down tube as shown in FIG. 5) and the conversion shaft chain gear of Claim 2 must have the same axis, and are between a chain gear and a 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

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