Bicycles with automatic gear shifting function

Abstract

This invention relates to a bicycle with automatic gear shifting, providing a comfortable riding experience for the user. It includes: an input unit comprising a pedal and a gear set; an output unit comprising an internal gear shifter, at least one gear, and a driven sprocket, the internal gear shifter being disposed at the center of a tire body; a cable pull device comprising a sensor unit and a timing unit, wherein the cable pull device has a snap-fit ​​connector connected to the gear of the output unit; and a magnet connected to at least one spoke of the tire body, the magnet being positioned relative to the sensor unit of the cable pull device; by means of the cable pull device and the magnet, the snap-fit ​​connector can be used to change the position of the gear according to changes in speed.

Description

Bicycles with automatic gear shifting function Technical Field

[0001] This invention relates to the technical field of bicycles, and more particularly to a bicycle with automatic gear shifting function. Prior Technology

[0002] Note that bicycles have become a popular mode of transportation and leisure. However, different users have different pedaling inertia, physical output force, and preferred speed. In the face of uneven road conditions, it is necessary to adjust the gear system in time to regulate the pedaling load in order to reduce physical load and improve riding efficiency. By changing the gear ratio of the transmission system, the workload of the user on the pedal can be adjusted.

[0003] However, most existing gear shifting mechanisms use a chain coupled with gears of different sizes to achieve gear shifting. In actual operation, the chain often comes off due to tension vibration during gear shifting, which not only causes inconvenience in operation, but also necessitates improvement. Summary of the Invention

[0004] Therefore, in view of the problems of the aforementioned conventional gear shifting mechanisms, the inventor of this invention has devoted himself to developing this new type of bicycle with automatic gear shifting function. Thus, the main purpose of this invention is to provide riders with a comfortable pedaling experience using a bicycle with automatic gear shifting function; the secondary purpose of this invention is to provide a low-cost bicycle with automatic gear shifting function.

[0005] To achieve the above objectives, the following technical means are used:

[0006] This invention relates to a bicycle with automatic gear shifting function, comprising: an input unit including a pedal and a gear set connected to the pedal; an output unit including an internal gear shifting unit, at least one gear and a driven sprocket, wherein the internal gear shifting unit is connected to the center of a tire body and the driven sprocket is connected to the gear set of the input unit; a cable puller device including a sensor unit and a timing unit, wherein the sensor unit is adjacent to the timing unit and the cable puller device has a clip-on connector connected to the gear of the output unit; and a magnet connected to at least one spoke of the tire body, the magnet being positioned relative to the sensor unit of the cable puller device.

[0007] The above also includes a frame, and the input unit is connected to a bottom bracket, while the output unit is connected between two rear upper forks and two rear lower forks.

[0008] The aforementioned cable puller device is connected to the rear lower fork of the frame.

[0009] The aforementioned cable puller device further includes a battery, and the battery is electrically connected to the cable puller device.

[0010] The sensor unit of the aforementioned puller device, in conjunction with the magnet and the timing unit, obtains the time required for the magnet to move a certain distance.

[0011] Dividing the distance by the time yields a velocity.

[0012] The aforementioned timing unit is equipped with a temporary memory.

[0013] By employing the aforementioned technical means, this invention can achieve the following effects:

[0014] 1. This new invention utilizes a cable puller device in conjunction with a magnet. When the magnet rotates once, the sensor unit detects the distance, and the timing unit obtains the time. By knowing the current speed, the card connector is driven by the cable puller device to shift the gear ratio to match the current speed, thereby reducing the user's pedaling speed from being too fast or too slow, achieving the purpose of comfortable pedaling.

[0015] 2. This invention uses an external cable puller device connected to the rear lower fork of the frame and places a magnet on the wheel spoke. The magnet utilizes the Hall effect to enable the sensor unit to detect the potential difference generated when the magnet approaches and moves away, thereby activating the timing unit. This invention has a simple structure and is easy to install, thus achieving the purpose of low cost. Simple Explanation of the Diagram

[0016] [Figure 1] A three-dimensional schematic diagram of the new type of bicycle with automatic gear shifting function. [Figure 2] A plan view of the new bicycle with automatic gear shifting function. [Figure 3] A partially enlarged schematic diagram of the new type of bicycle with automatic gear shifting function. [Figure 4] Schematic diagram of the process of the new type of bicycle with automatic gear shifting function. [Figure 5] Schematic diagram of the new battery mounted on the vehicle frame. Implementation

[0017] This invention relates to a bicycle with automatic gear shifting function, comprising: an input unit 1, an output unit 2, a cable puller device 3, a magnet 4, and a frame 5; the above components are described in conjunction with the following drawings.

[0018] The aforementioned input unit 1 includes a pedal 11 and a gear set 12, with the gear set 12 connected to the pedal 11.

[0019] The aforementioned output unit 2 includes an internal transmission unit 21, at least one transmission gear 22, and a driven gear 23. The internal transmission unit 21 is connected to the center of a tire body 51, and the driven gear 23 is connected to the gear set 12 of the input unit 1.

[0020] The aforementioned cable puller device 3 further includes a sensor unit 31 and a timing unit 32, wherein the sensor unit 31 is adjacent to the timing unit 32, and the cable puller device 3 is provided with a clip-on connector 33 connected to the speed gear 22 of the output unit 2, and wherein the timing unit 32 is provided with a temporary memory; please refer to Figure 5, the cable puller device 3 also includes a battery 34, and the battery 34 is electrically connected to the cable puller device 3.

[0021] The aforementioned magnet 4 is attached to at least one spoke of the tire body 51, and the position of the magnet 4 is relative to the sensor unit 31 of the puller device 3.

[0022] The aforementioned frame 5, wherein the input unit 1 is connected to a five-way tube 53, and the output unit 2 is connected between the two rear upper forks 54 and the two rear lower forks 55, and the cable puller device 3 is connected to the rear lower fork 55 of the frame 5.

[0023] Therefore, this invention provides a preferred embodiment of a bicycle with automatic gear shifting function, wherein the spokes 52 of the tire body 51 of a bicycle A with automatic gear shifting function are equipped with magnets 4, and the rear chainstay 55 is connected to the cable pull device 3, and the sensor unit 31 of the cable pull device 3 is on the rotation path of the magnets 4. When stationary, the timing unit 32 is set to 0s. When the user starts riding, the sensor unit 31 detects the magnets 4, causing the timing unit 32 to start counting. The sensor unit 31 detects the magnets 4 again as they rotate clockwise, obtains the time t required for the magnets 4 to move a distance d, calculates the speed v using the formula, a speed v = distance d / time t, stores the speed v value in the temporary memory, and resets the timing unit 32 to zero.

[0024] Furthermore, when the user rides uphill, the acceleration is v. The timing unit 32 continuously counts the speed. When the speed v is lower than the speed v stored in the temporary memory, the speed v is updated every time it is counted. In this way, even before the sensor unit 31 detects the magnet 4 during the deceleration phase, the speed v can still be calculated as time t decreases, so that the card connector 33 can shift the gear 22 to the appropriate gear.

[0025] Furthermore, this novel bicycle with automatic gear shifting function provides another preferred embodiment. Please refer to Table 1. Taking the cable pull device 3 as an example, at the starting speed v, the gear 22 is in gear 1. When the speed v exceeds 10 km / hr, the clip-on connector 33 of the cable pull device 3 will shift the gear 22 to gear 2. When the speed v exceeds 14 km / hr, the clip-on connector 33 will shift to gear 3. When decelerating, the original gear is 3. When the speed v is below 12, the clip-on connector 33 will shift to gear 2, and so on. That is, the cable pull device 3 operates according to the speed v, thereby pulling the gear 22 of the output unit 2, changing the gear ratio of the gear 22, thereby increasing or decreasing the gear, providing the user with a comfortable riding experience.

Table 1

[0026] In conclusion, this invention relates to a bicycle with automatic gear shifting function, and its structural components have not been seen in any books or publicly used. Therefore, it fully meets the requirements for a utility model patent application. We earnestly request your esteemed office to consider this matter and grant the patent as soon as possible. We are deeply grateful for your consideration.

[0027] It should be noted that the above description is the technical principle used in the specific embodiments of this case. If any changes are made in accordance with the concept of this case, and the resulting functions and effects do not exceed the spirit covered by this specification and drawings, they should be stated within the scope of the patent application of this case.

[0028] A: A bicycle with automatic gear shifting. 1: Input Unit 11: Pedal 12: Gear Set 2: Output Unit 21: Internal transmission unit 22: Gearbox 23: Driven gear disc 3: Pull-wire device 31: Sensor Unit 32: Timing Unit 33: Card connector 34: Battery 4: Magnet 5: Frame 51: Fetal body 52: Wheel Spokes 53: Five-way pipe 54: Backhand Fork 55: Backwards fork d: distance t: time v: speed

Claims

1. A bicycle with automatic gear shifting function, comprising: an input unit including a pedal and a gear set, the gear set being connected to the pedal; an output unit including an internal gear shifting unit, at least one gear and a driven sprocket, the internal gear shifting unit being connected to the center of a tire body, and the driven sprocket being connected to the gear set of the input unit; a cable pull device, the cable pull device further including a sensor unit and a timing unit, wherein the sensor unit is adjacent to the timing unit, and the cable pull device is provided with a snap-fit ​​connector connected to the gear of the output unit; and a magnet, the magnet being connected to at least one spoke of the tire body, and the magnet being positioned relative to the sensor unit of the cable pull device.

2. The bicycle with automatic shifting function as described in claim 1, further comprising a frame, wherein the input unit is connected to a bottom bracket and the output unit is connected between two rear top forks and two rear bottom forks.

3. The bicycle with automatic shifting function as described in claim 2, wherein the cable device is connected to the two rear chainstays of the frame.

4. The bicycle with automatic gear shifting function as described in claim 1, wherein the cable pull device further includes a battery and the battery is electrically connected to the cable pull device.

5. A bicycle with automatic gear shifting function as described in claim 1, wherein the sensor unit of the cable pull device, in conjunction with the magnet and the timing unit, obtains the time required for the magnet to move a distance.

6. A bicycle with automatic gear shifting as described in claim 5, wherein the distance divided by the time yields a speed.

7. A bicycle with automatic gear shifting function as described in claim 6, wherein the timing unit is provided with a temporary memory.

Images