KR102538865B1 - One-touch electronic shift lever and bicycle containing it - Google Patents

Abstract

A one-touch electronic shift lever and method of operating the same according to an embodiment of the present invention is a method of operating a one-touch electronic shift lever for shifting at least two or more gears of a bicycle with one touch. obtaining specification information by receiving specifications for at least one or more; Calculating a gear ratio based on the obtained specification information; Calculating a chain resistance based on the obtained specification information; classifying the integrated number of stages into an effective number of stages and an ineffective number of stages based on the gear ratio and the chain resistance; Receiving a user's one-touch input to change the number within the valid number; and controlling a gear change of the chainring gear and the sprocket gear according to the input one-touch gear change.

Description

One-touch electronic shift lever and its operating method {ONE-TOUCH ELECTRONIC SHIFT LEVER AND BICYCLE CONTAINING IT}

The present invention relates to a one-touch electronic shift lever and a bicycle including the same.

More specifically, it relates to a one-touch electronic shift lever that effectively shifts gears according to the state of a bicycle gear, and a bicycle including the same.

In general, a user using a bicycle uses a gearbox equipped with multiple gears mounted on the bicycle to input a shift value according to driving conditions such as an uphill road, a restart after a pause, an uneven road, and an increase in load, etc. You can drive at the desired speed by stepping on the pedal with force.

A conventional bicycle transmission includes a shift lever for adjusting a chain of a pedal-side gear and a shift lever for adjusting a chain of a wheel-side gear in order to select a gear to be engaged with a chain and adjust the number of stages. Accordingly, the user can adjust the number of gears by selecting one of the different shift levers, adjusting a desired gear, and engaging the chain at a desired number.

In detail, the rider can adjust the chain to engage with one of the plurality of pedal gears by adjusting the first shift lever to which the first cable is connected, and manipulate the second shift lever to which the second cable is connected to shift the chain to a number of gears. It can be adjusted to engage one of the wheel gears. Such an existing transmission device has inconvenience in that it is difficult to match a desired gear ratio to a general user without expert knowledge.

In addition, in the existing transmission system, when a large pedal shaft gear is selected by operating the shift lever, the tension of the chain can be kept constant only when the other lever is operated at the same time to select a small diameter rear wheel shaft gear. If it doesn't fit, there is a problem with rattling or the chain coming off.

Moreover, since users who do not have expert knowledge about gear ratios of bicycles have difficulty adjusting multi-stage gears to suit the gear ratios, it is necessary to prepare a solution therefor.

The present invention, in order to solve the problem of separately adjusting each shift lever connected to different cables, a one-touch electronic shift lever capable of simultaneously controlling by connecting at least two different cables to one shift lever and including the same I would like to suggest a bicycle.

In addition, the present invention, in order to solve the problem of the bicycle rattling or the chain coming off when the meshing gear ratio is inefficient, a one-touch electronic shift lever that has the gear ratio most suitable for the gear condition of the bicycle and can be changed to a single number, and includes the same I would like to suggest a bicycle.

In addition, the present invention is to provide a one-touch electronic shift lever capable of limiting an unreasonable number change and a bicycle including the same in order to solve a shift travel problem that may occur due to an unreasonable attempt to change the number of bicycles.

However, the technical problems to be achieved by the present invention and the embodiments of the present invention are not limited to the technical problems described above, and other technical problems may exist.

A one-touch electronic shift lever and method of operating the same according to an embodiment of the present invention is a method of operating a one-touch electronic shift lever for shifting at least two or more gears of a bicycle with one touch. obtaining specification information by receiving specifications for at least one or more; Calculating a gear ratio based on the obtained specification information; Calculating a chain resistance based on the obtained specification information; classifying the integrated number of stages into an effective number of stages and an ineffective number of stages based on the gear ratio and the chain resistance; Receiving a user's one-touch input to change the number within the valid number; and controlling a gear change of the number of stages of the chainring and the number of sprockets according to the input one-touch change of the number of stages.

In addition, the one-touch transfer-type shift lever and its operating method according to an embodiment of the present invention may include, when specifications for at least one of the chainring, the sprocket, and the tire are changed, acquiring the changed specification information; and resetting the valid number according to the changed specification information.

At this time, the step of classifying the effective number of stages and the number of ineffective stages includes calculating an integrated number of stages forming one combination by matching one stage of the chainring and one stage of the sprocket.

Here, the effective number of stages is an integration stage in which the chain resistance is less than a preset value among the integration stages, and the ineffective stage is an integration stage in which the chain resistance is greater than or equal to a predetermined value among the integration stages.

In addition, the step of classifying the valid and non-effective stages may include, when changing from the n stage of the integrated stage to the n+1 stage of the integrated stage, the effective stage number of the sprocket is changed to less than a preset stage number. The step of classifying is further included.

In addition, the step of classifying the effective and non-effective stages includes, when a change in the number of stages greater than or equal to a preset number is required at one time, staying in any intermediate stage included in a number less than the preset stage for a predetermined time. Further, the step of staying at any intermediate stage for a predetermined period of time includes executing stage re-change to perform the stage change through stage movement less than the preset stage number.

In addition, in the step of classifying the effective number of stages and the number of ineffective stages, when there are a plurality of integrated stages determined to have similar gear ratios according to a predetermined criterion, the plurality of integrated stages are compared with each other to lower the chain resistance. The step of setting the combined singular number having as the effective singular number is further included.

In addition, the step of performing the one-touch range change based on the effective range includes receiving a one-touch input from the user and simultaneously controlling the chainring and the sprocket of the bicycle based on the one-touch input to perform the range change. Include steps.

Meanwhile, the one-touch electronic shift lever and its operating method according to an embodiment of the present invention receive specification information on at least one of a chainring, sprocket, and tire of a bicycle from a user, and integrate the chainring and sprocket gear. an input unit that receives a one-touch input for singular change; and a processor for calculating a gear ratio and chain resistance based on the received specification information, wherein the processor classifies the integrated number of stages into an effective number and an ineffective number based on the calculated gear ratio and chain resistance, and When a user's one-touch input is received, an integrated range to be changed according to the one-touch input is determined within the effective range, and the chainring and the sprocket are simultaneously controlled to shift to the determined integrated range.

A one-touch electronic shift lever and a bicycle including the same according to an embodiment of the present invention can conveniently adjust chainring gears and racket gears with one shift lever by controlling at least two different cables with one shift lever. there is.

In addition, the one-touch electronic shift lever and the bicycle including the one-touch electronic shift lever according to the embodiment of the present invention allow the user to easily control the gear with one hand by using the one-touch electronic shift lever.

Moreover, the one-touch electronic shift lever according to an embodiment of the present invention and a bicycle including the same automatically derives and provides the number of stages having the gear ratio and chain resistance most suitable for the gear of the bicycle, so that even those without professional knowledge of the bicycle Users can also effectively set and use multi-stage gears.

In addition, the one-touch electronic shift lever and bicycle including the same according to an embodiment of the present invention selects and provides the most suitable stage for use by the user in consideration of the automatically calculated gear ratio and chain resistance, thereby providing optimal chain tension. can keep

In addition, a one-touch electronic shift lever and a bicycle including the same according to an embodiment of the present invention resets and provides the most suitable stage when specifications such as the condition of a gear or a tire of a bicycle change, thereby providing optimized You can make singular changes.

1 shows the appearance of a bicycle according to an embodiment of the present invention.
2 is a view for explaining a chainring and a sprocket, which are units of a bicycle according to an embodiment of the present invention.
3 shows an external appearance of a one-touch electronic shift lever according to an embodiment of the present invention.
4 shows an internal block diagram of a one-touch electronic shift lever according to an embodiment of the present invention.
5 is a flowchart illustrating a method of shifting a bicycle based on a one-touch electronic shift lever according to an embodiment of the present invention.
6 shows how the one-touch electronic shift lever detects a user's input according to an embodiment of the present invention.
7 is an example showing a result of calculating a gear ratio based on specifications of a chainring, sprocket, and tire according to an embodiment of the present invention.
8 is a graph showing the result of classifying the effective number of stages and the number of ineffective stages based on the gear ratio and chain resistance according to an embodiment of the present invention.

Since the present invention can apply various transformations and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and methods for achieving them will become clear with reference to the embodiments described later in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various forms. In the following embodiments, terms such as first and second are used for the purpose of distinguishing one component from another component without limiting meaning. Also, expressions in the singular number include plural expressions unless the context clearly dictates otherwise. In addition, terms such as include or have mean that features or elements described in the specification exist, and do not preclude the possibility that one or more other features or elements may be added. In addition, in the drawings, the size of components may be exaggerated or reduced for convenience of description. For example, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to the illustrated bar.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and when describing with reference to the drawings, the same or corresponding components are assigned the same reference numerals, and overlapping descriptions thereof will be omitted. .

- bike

First, a bicycle refers to a vehicle that is driven by a person sitting on it and turning the wheels with the power of both legs. That is, in a bicycle, a person sits on a saddle, holds a handle with both hands, and alternately steps on pedals with both feet to turn a wheel with a chain.

Hereinafter, the components of the bicycle will be described in more detail with reference to the drawings.

1 shows the appearance of a bicycle according to an embodiment of the present invention.

Referring to FIG. 1, a bicycle 200 generally includes a chainring 210, a first derailleur 220, a sprocket 230, a second derailleur 240, a front wheel 250, a rear wheel 260, and a chain. 270, a pedal unit 280, a handle 291, a saddle 292, and a body unit 290 may be included.

At this time, the components shown in FIG. 1 are not essential to implement the bicycle 200, so the bicycle 200 described in this specification may have more or fewer components than the components listed above. there is.

Returning to the description, in general, the bicycle 200 has a front wheel 250 and a rear wheel 260 that are rotatably mounted on the front and rear sides of the body portion 290 and are grounded to the ground. Installed on top of the frame A saddle 292 that allows the user to sit and drive, a handle 291 that allows the user to hold and maintain balance while driving and to adjust direction while driving in connection with the front wheel 250, and the front wheel 250 ) and the rear wheel 260, the user steps on it to generate rotational force, and the pedal unit 280 equipped with a sprocket 230 rotated by this rotational force and mounted on the rear wheel 260, the pedal unit 280 It may include a chain ring 210 (crank gear) connected to the sprocket 230 of the chain 270.

That is, when the user steps on the pedal to rotate the sprocket 230, this rotational force is transmitted to the rear wheel 260 connected by the chain 270, and the rear wheel 260 rotates so that the front wheel 250 and the rear wheel 260 fall to the ground. It will move forward as it rubs against.

In addition, the chainring 210, which is a gear mounted on the pedal unit 280, when the bicycle 200 shifts gears by manipulating gears according to driving conditions such as uphill road, restart after a pause, bumpy road, and load increase. and a derailleur for controlling the chain 270 spanning the sprocket 230, which is a gear mounted on the rear wheel 260, to be changed in each gear.

At this time, the derailleur may include a first derailleur 220 that changes the number of chainrings 210 and a second derailleur 240 that changes the number of sprockets 230 .

2 is a view for explaining a chainring 210 and a sprocket 230, which are units of a bicycle 200 according to an embodiment of the present invention.

Referring to FIG. 2 , the chainring 210 and the sprocket 230 will be described in more detail.

First, the chainring 210 and the sprocket 230 rotate while engaging each other by making protrusions (gear teeth) at equal intervals on a multi-stage disc-shaped rotating body inserted into the shaft to transmit rotation or power around the shaft. A gear is a mechanical device that can transmit motion or power without slipping or loss of energy.

For example, referring to (a) of FIG. 2 , the sprocket 230 may be a gear consisting of 9 rotating bodies of different sizes and forming 9 stages.

Here, the sprocket 230 may be configured in a form in which the diameter of the rotating body decreases as it goes from a low stage (eg, 1st stage) to a high stage (eg, 9th stage).

In addition, referring to (b) of FIG. 2, the chainring 210 may be a gear consisting of three rotating bodies of different sizes to form a three-stage gear.

Here, the chainring 210 may be configured in a form in which the diameter of the rotating body increases from a low stage (eg, 1st stage) to a high stage (eg, 3rd stage).

The chainring 210 and the sprocket 230 are connected to each other by a chain 270, and the bicycle 200 can be shifted according to the change in the number of gears the chain 270 spans in each gear.

In detail, when both the chainring stage, which is the stage in which the chain 270 is spanned from the chainring 210, and the sprocket stage, which is the stage in which the chain 270 is spanned from the sprocket 230, are both low stages, the bicycle 200 has power It can be shifted to a low speed state with less torque.

Conversely, when both the number of chainrings and the number of sprockets are high, the bicycle 200 may shift gears with great force and at high speed.

At this time, the number of chainrings and the number of sprockets may be expressed as one integrated number.

For example, the integrated 1st stage may mean 1st stage of chainring and 1st stage of sprocket ((1,1)). That is, it can be defined as an integral singular number 1=(1,1).

In this way, the integral singular is: 2=(1,2), 3=(1,3),... , 9=(1,9), 10=(2,1), 11=(2,2), … , 18(2,9), 19(3,1), 20(3,2), ... , which can be defined as 27(3,9).

The number of integrated stages may increase in proportion to increasing the number of stages of each chainring and sprocket.

In another embodiment, the number of integrated stages may be set to increase in proportion to the gear ratio. For example, when the gear ratio is reduced as the number of chainrings increases and the number of sprockets decreases, the number of gears with a low gear ratio is reduced and the number with a high gear ratio is set to a relatively high gear ratio regardless of the increase in the number of chainrings. can be set

As described above, in the embodiment of the present invention, it is possible to provide a one-touch electronic shift lever 100 capable of adjusting the entire number of stages through one lever based on the set number of integrated stages as described above.

- One-touch electronic shift lever

Next, the one-touch electronic shift lever 100 (hereinafter referred to as a shift lever) of the present invention can simultaneously control the sprocket 230 and the chainring 210 connected to the shift lever 100 by a device such as a cable.

In detail, the one-touch electronic shift lever 100 may derive an integrated number of gears according to the positions of the sprocket 230 and the chainring 210 to which the chain 270 is engaged, and pedal based on the derived integrated number. According to the rotation of the rear wheel 260 can adjust the gear ratio that rotates.

These shift levers 100, depending on the method of use and form, include a down tube shifter, a dual control lever, a thumb shifter, a grip shifter, and a bar end shift ( Bar end shifter), trigger shifter, and the like.

In addition, the shift lever 100 can be mounted anywhere on the bicycle 200, but it is best to mount it on the handle 291 of the bicycle 200, which is the most suitable position for user convenience and implementing the embodiment of the present invention. would be preferable

In addition, in the embodiment of the present invention, it is described that the shift lever 100 performs all data processing required for shifting of the bicycle 200, but according to the embodiment, the terminal interlocks with the terminal to transmit data related to shifting of the bicycle 200. Various embodiments will be possible, such as performing some of the processing.

Hereinafter, components of the shift lever 100 will be described in detail.

3 and 4, the shift lever 100 may include an interface unit 110, a derailleur control unit 120, an input unit 130, a display unit 140, a memory 150, and a processor 160. can

First, the interface unit 110 adjusts the first cable that can change the position of the chain 270 bitten on the chainring 210 by adjusting the first derailleur 220 and the second derailleur 240 to A second cable capable of changing the position of the chain 270 fed to the sprocket 230 is included.

In addition, the first cable and the second cable are connected to the shift lever 100, respectively, and the first cable or/and the second cable are physically/electronically connected according to the user's gear change input through the shift lever 100. Length can be changed. Also, when the length of the cable changes according to the number change input, the connected derailleur is adjusted and the position of the chain 270 is changed, so that the gear ratio of the bicycle can be changed.

In the embodiment, the interface unit 110 has been described as a cable connecting between the derailleur and the shift lever, but an embodiment in which the gear is shifted by giving a signal to the derailleur through wireless communication may also be possible.

Next, the derailleur control unit 120 adjusts the lengths of the first cable and the second cable connected through the interface unit 110 to adjust the position of the chain 270 spanning the gears of the chainring 210 and sprocket 230. can be changed

For example, the derailleur control unit 120 may operate the derailleur by adjusting the length of the cable by pulling or releasing the cable with a rotation motor.

Accordingly, the derailleur control unit 120 may include a first motor for winding or unwinding the first cable around the cylindrical body and a separate second motor for winding or unwinding the second cable around the cylindrical body.

In the derailleur control unit 120, the first motor and/or the second motor operate to adjust the number of stages of each gear according to the integrated number of stages input by the user at the shift lever 100, so that the first cable or/and the length of the second cable may be adjusted.

Next, the input unit 130 may detect a user's input.

In detail, in the embodiment, the input unit 130 may include a button 131 capable of receiving a user's input for changing gears (ie, gear ratio change).

That is, the input unit 130 may detect a user input capable of adjusting both the chainring and the sprocket by changing the number of integrated steps through a single button 131 (eg, a lever). In another embodiment, the input unit 130 may include two buttons, a button for increasing the number of integrated stages and a button for decreasing the number of integrated stages.

In addition, the input unit 130 may include a touch screen 132 capable of receiving a user's input on at least one of specifications of the chainring 210, the sprocket 230, and the tire.

That is, the input unit 130 may be implemented as a touch screen 132 by being combined with a touch sensor coupled with the display unit 140 .

Next, the display unit 140 may be a touch screen combined with the input unit 130, and in an embodiment, may output a graphic image related to a one-touch number change.

The display unit 140 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display. It may include at least one of a flexible display, a 3D display, and an e-ink display.

Next, the memory 150 may store any one or more of application programs, data, and commands required for functional operation according to an embodiment of the present invention.

As an example, the memory 150 may store data information about the chainring 210, the sprocket 230, and the circumference of the tire received from the user.

The memory 150 may be various storage devices such as ROM, RAM, EPROM, flash drive, hard drive, etc., and may be a web storage that performs the storage function of the memory 150 on the Internet. may be

Finally, the processor 160 may control and drive the overall operation of each unit described above.

In detail, in the embodiment, the processor 160 determines the number of combined stages to be changed according to the user's input to change the number of stages through the input unit 130, and controls the derailleur operating unit 120 to be the determined number of stages to perform one-touch change of the number of stages. can

In addition, the processor 160 may classify the number of effective and non-effective stages from the total number of integrated stages according to gear and tire specifications, and control the one-touch change in the number of stages to be performed only within the effective range.

In addition, the processor 160 may recalculate valid/ineffective gears when gear and tire specifications are changed, and control the one-touch change of gears to be performed only within the recalculated effective gears.

These processors 160 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, It may be implemented using at least one of micro-controllers, microprocessors, and electrical units for performing other functions.

- The process by which the shift lever's processor provides a one-touch range change function

Hereinafter, a process in which the processor 160 of the shift lever 100 provides a one-touch range change function will be described in detail with reference to FIG. 5 .

Referring to FIGS. 5 and 6 , the shift lever 100 may detect a user's input on the chainring 210, sprocket 230, and tire specifications. (S101)

In detail, the shift lever 100 determines the number of rotating bodies (ie, the number of steps) of each of the chainring 210 and the sprocket 230 and the number of teeth of each rotating body through the touch screen 132 of the input unit 130. Alternatively, at least one piece of specification information such as a circumferential value of the tire of the bicycle 200 may be acquired.

The shift lever 100 having obtained the specification information may calculate a gear ratio according to the number of stages of chainrings and the number of sprockets. (S103)

The processor 160 of the shift lever 100 may calculate gear ratios for each of the integrated stages (hereinafter referred to as “integrated stages”).

In detail, referring to FIG. 7 , in the shift lever 100, each stage of the sprocket 230 may be matched to each stage of the chainring 210 one by one, and the gear ratio for the integrated stage that is matched to form one combination can be calculated.

For example, when the shift lever 100 has a chainring stage of 1 (ie, chainring 210 1st stage) and a sprocket stage 1 (ie, sprocket 230 1st stage), the chainring 210 The first stage and the first stage of the sprocket 230 are matched to form one combination, and the number of stages of the integrated stage can be calculated as the single stage of the integrated stage.

Further, the gearshift lever 100 may be obtained by calculating a gear ratio for the calculated integrated first gear.

At this time, the shift lever 100 uses the gear ratio calculation formula [gear ratio = number of teeth of one gear of chainring 210 / number of teeth of one gear of sprocket 230 * tire circumference] at each integrated stage. gear ratio can be calculated.

In addition, the shift lever 100 determines whether the calculated gear ratio is an appropriate gear ratio for driving the bicycle 200 or an inappropriate gear ratio, and can be used to set an effective number of gears later.

Next, the shift lever 100 having calculated the gear ratio may calculate a chain resistance value according to the number of chainring stages and the number of sprocket stages. (S105)

Here, the chain resistance refers to a phenomenon in which the rolling resistance of the chain 270 decreases when the gear is used with the greatest force.

In this case, the rolling resistance refers to the total amount of resistance received when the tire rolls on a horizontal road surface. That is, the rolling resistance may include resistance to deform the tire, friction of each part of the bicycle 200 and resistance to deform the road surface.

The rolling resistance increases in proportion to the greater the weight of the bicycle 200 and the softer the road material.

In detail, the rolling resistance (R _r ) is that W is the weight of the bicycle 200 transmitted to the ground through the tire (total vehicle weight), θ is the slope of the road on which the bicycle 200 has traveled, and μ is the coefficient of resistance When doing so, the following Equation 1 can be satisfied.

Thus, the shift lever 100 can calculate a chain resistance value based on the rolling resistance value derived by the above equation, and can be used to set an effective number of stages later.

In addition, the shift lever 100 may consider chain resistance according to a difference in horizontal distance between a chainring and a sprocket.

In detail, referring to FIG. 7, the chain 270 connecting the gears for each stage of the chainring and each stage of the sprocket has a horizontal inclination as the horizontal distance between the connecting gears and the gears increases, and the gears Chain resistance may additionally occur during rotation.

Therefore, as can be seen from FIG. 7 , as the horizontal distance of sprocket gears in one chainring gear increases, chain resistance increases, which can negatively affect bicycle driving.

Next, the shift lever 100 having calculated the gear ratio and chain resistance can classify the number of effective and ineffective stages based on the gear ratio and chain resistance. (S107)

Here, the effective range means an integrated range determined suitable for the user to use while driving the bicycle 200 because the chain resistance is lower than a predetermined value among the plurality of integrated stages for which the gear ratio is calculated.

Conversely, the ineffective range means an integrated range determined to be unsuitable for the user to use while driving the bicycle 200 because the chain resistance is higher than a predetermined value among the plurality of integrated stages for which the gear ratio is calculated.

That is, the shift lever 100 automatically sets and provides an effective number of stages, which is an integrated number that is determined to be suitable for the user to use while driving the bicycle 200 based on the gear ratio and chain resistance, so that the user can use the bicycle 200 ), it is possible to easily use the most effective integrated singulars among a plurality of integrated singulars.

In other words, the gearshift lever 100 may be set to change the range only within the ranges classified as valid ranges from the integrated range.

In detail, referring to FIG. 8 as an embodiment, first, the shift lever 100 may arrange integrated stages so that the gear ratio is sequentially increased based on the calculated gear ratio.

Further, the shift lever 100 may set the effective number of stages (A) as the number of integrated stages having chain resistance less than a preset value based on the calculated chain resistance.

Conversely, the integrated number of stages having a chain resistance greater than or equal to a preset value may be set as an ineffective number of stages.

For example, in the shift lever 100, (number of chainrings, number of sprockets) = (1,1), (1,2), ... , (1,8), (2,2), (2,3), … , (2,8), (3,2), (3,3), … , (3,9) can be set as the effective singular number (A).

That is, the shift lever 100 may derive integrated stages according to the sequentially increasing gear ratio, and among the derived integrated stages, an integrated stage having a lower chain resistance than a preset value may be set as the effective range (A). .

Therefore, the shift lever 100 automatically sets and provides an effective number A, which is an integrated number that is determined to be suitable for use by the user while driving the bicycle 200, thereby adjusting the gear ratio and chain resistance of the bicycle 200. Even users who do not have professional knowledge can effectively set and use multi-stage gears, and maintain the tension of the chain 270 based on clearer grounds.

That is, in the shift lever 100, an ineffective range that induces inefficient driving due to high chain resistance is not settable, and it is possible to change the range only within an effective range that enables efficient driving due to low chain resistance.

In addition, the shift lever 100 is set so that the gear ratio increases when the number of stages is increased and the gear ratio decreases when the number of stages is decreased, so that the user can intuitively change the gear ratio.

As described above, the shift lever 100 set by classifying the effective range (A) and the ineffective range can allow the user to adjust the range within the effective range (A) with one touch. (S109)

Here, one-touch refers to a function that allows a user to control gears of the bicycle 200 at once and adjust the number of gears by performing an input to one shift lever 100 .

To this end, the shift lever 100 may be connected to at least two different cables through the interface unit 110, and may provide a button 131 for receiving a number change input from the user.

At this time, the button 131 may be a button that moves in a direction such as up and down or left and right by a user's input. It is possible to change the number to a higher number by detecting it, and when receiving an input moving downward, it is possible to change the number to a lower number by detecting an input to change to a number lower than the current number.

In the embodiment, it has been described that the number change is performed by the user's upper and lower inputs on the buttons, but various embodiments such as performing the number change by left and right inputs will also be possible.

As such, the shift lever 100 controls the chainring 210 and the strap together with one shift lever 100, so that the user can easily control the gear with one hand.

Meanwhile, in general, when the number of stages of the bicycle 200 is changed, as the number of stages of the bicycle 200 is increased, the gear ratio of the corresponding bicycle 200 must gradually increase in order to intuitively and effectively change the number of stages.

However, there is a problem that a gear ratio may be lowered or an overlapping section may occur even though the number of stages of the bicycle 200 is increased.

For example, there is a case where the number of chainrings increases but the number of sprockets decreases, that is, a case in which the number of stages is changed from (1,8) to (2,2).

In addition, when the number of stages of the bicycle 200 is changed, if the number of stages of the predetermined x or more stages is changed at once in each gear, the shift travel problem such as rattling of the bicycle 200 or separation of the chain 270 may occur. can happen

In the following description, it is described by setting x = 3, but various embodiments will be possible within the range that a person skilled in the art can implement.

In order to solve the above problem, the gearshift lever 100 can be set from a range where the number of sprocket stages is changed to less than 3 stages to an effective range (A) when the number of chainring stages is increased by one stage.

In detail, for example, the shift lever 100 may set the number of sprockets of the maximum effective number of stages (A) to a when the chainring is in first gear.

In addition, the shift lever 100 may set the number of sprockets of the minimum effective number of stages (A) to b when the number of chainring stages is increased by one and the number of chainrings is 2 stages.

Then, the shift lever 100 may set the maximum effective number of stages (A) at the 1st stage of the chainring and the minimum effective number of stages (A) at the 2nd stage of the chainring so as to satisfy [a-b<3].

As an example, in the shift lever 100, (number of chainrings, number of sprockets) = (1,7) is set as the maximum effective number of stages (A) in the first stage of the chainring, and (number of stages of chainrings) , the number of sprocket stages) = (2,5), 14 stages can be set as the minimum effective number of stages (A) in the 2nd chainring.

That is, the shift lever 100 may allow only a change in the number of gears less than 3 gears capable of preventing shift travel by setting an effective number of gears A that satisfy the above formula.

In addition, the shift lever 100 can be avoided without separately extracting the gear with high chain resistance through the setting of the effective number of stages (A) as described above, and the occurrence of overlapping gear ratios within the effective number of stages (A). It is possible to change the number of stages in which the gear ratio gradually increases without

From another point of view, when the effective number of stages A is changed from n to n+1, the effective number of stages A may be set such that the changed number k of the sprocket is less than 3.

That is, the conditions for setting the effective number of stages (A) in the embodiment are 1) that the effective number of stages (A) and the gear ratio increase/decrease in proportion, 2) that the chain resistance is less than or equal to a preset value, and 3) from n to n When changing to +1 gear, the number of changing sprocket gears may be that k is less than 3.

Meanwhile, in the above embodiment, when the number of stages is changed from the set maximum effective number of stages (A) to the minimum effective number of stages (A), too many stages may be omitted.

For example, when moving from the 7th stage to the 14th stage, the 8th to 13th stages of the integrated stage may be omitted.

Therefore, in another embodiment, the conditions for setting the effective number of stages (A) are 1) that the effective number of stages (A) and the gear ratio increase/decrease in proportion, and 2) that the chain resistance for each effective number of stages (A) is less than or equal to the preset resistance value. can be

In another embodiment, the shift lever 100 sets an effective number of stages (A) by allowing a change in the number of stages of 3 or more stages, and when changing the number of stages within the effective range (A), if a change of 3 or more stages is required, sequential stages are changed. The above problem can be solved through modification.

In detail, the shift lever 100, when it is necessary to change the number of stages of 3 or more stages in one gear to change to the number of stages input from the user in each gear, any number included in the number of stages less than 3 stages on the side of the number of stages input from the user It is possible to stay in the middle stage of for a predetermined amount of time.

After staying in the middle range for a predetermined time, the shift lever 100 may change the range again to the range input by the user through a range movement of less than 3 stages.

For example, when the shift lever 100 receives an input to change the number from the user to the 12th gear (ie, (2,3)) while driving in the 7th gear (ie, (1,7)) , Since it is necessary to change the number of stages of 3 or more stages at a time in the sprocket 230 (ie, change the number of stages from 7th to 3rd), any intermediate stage less than 3rd between the 7th and 3rd stages of the sprocket 230 It is possible to stay in the integrated 14th gear with the in-sprocket 5th gear for a predetermined amount of time.

In addition, the shift lever 100 allows the chain 270 to stay in the 5th gear on the sprocket 230 for a predetermined period of time, and then executes the gear change again, and again moves to less than 3 gears to integrate input input by the user. The number of stages can be changed by moving the chain 270 to the third stage of the sprocket 230, which can set 12 stages.

In this way, the shift lever 100 can use the effective range A more widely through the sequential change in the number of stages as described above.

In addition, the shift lever 100 cancels the execution of re-change and maintains the shift lever 100 without performing any further change of range when an input for changing the range to an arbitrary intermediate range is detected while staying in an arbitrary intermediate range for a predetermined time. can

In this way, the shift lever 100 prevents the number change of three or more gears from being performed at once in each gear through the sequential number change, so that the bicycle 200 does not rattle due to many number changes at once. A shift travel problem such as the chain 270 being separated may be prevented in advance.

However, when changing the number of stages in the same manner as in the other embodiments, there is a possibility that a number having an overlapping gear ratio may occur, which prevents an efficient change of the number of stages.

In order to solve this problem, the shift lever 100, when there is a range R in which integrated stages determined to have a similar gear ratio exist according to a predetermined criterion based on the calculated gear ratio, relatively low chain resistance The number of integrated stages can be set as the effective number of stages (A). Here, the predetermined criterion for determining similar gear ratios means a case where the gear ratio difference between different integrated stages is within a predetermined gear ratio value.

For example, the shift lever 100 may use whether the second digit after the decimal point is the same as a predetermined criterion for determining similar gear ratios.

For example, the shift lever 100 calculates chain resistance for an integrated 8-speed (i.e., (1,8)) and an integrated 12-speed (i.e., (2,3)) having a similar gear ratio, The number of integrated stages having a lower calculated chain resistance can be set as the effective number of stages (A).

Thus, the shift lever 100 enables shifting only within the most effective range (A), thereby assisting the smooth driving of the user.

In another embodiment, the shift lever 100 may not change the range to the corresponding invalid range when the integrated range number input from the user is an ineffective range when a range change is required.

In addition, the shift lever 100 satisfies at least one of 1) a case where the combined number is greater than an ineffective number input from the user, and 2) an integrated number closest to the ineffective number input from the user. It is possible to derive an effective singular number (A) and perform a singular change with the effective singular number (A).

For example, when the shift lever 100 receives an input of 9 integrated stages (ie, (1,9)) from the user, since the integrated stage 9 is set as an ineffective stage, it is larger than the integrated stage 9 and is the largest. A singular change can be performed with an integral singular number 11 (i.e., (2,2)), which is an adjacent effective singular number (A).

Meanwhile, in another embodiment, the shift lever 100 may provide a mode in which only the set effective range A is used.

In detail, the shift lever 100 arranges the set effective number of stages A in a predetermined order (for example, the order in which the gear ratio sequentially increases) to obtain each effective number of stages A matched to each effective number of stages A. number can be generated.

In addition, when the shift lever 100 receives an effective range (A) number from the user in a mode using only the effective range (A), the shift lever 100 automatically changes the gear to the effective range (A) matched with the corresponding effective range (A) number. can

In this way, the shift lever 100 provides a function in which the number of stages is changed only within the set effective number of stages (A), thereby avoiding a range having an inefficient gear ratio or chain resistance without the user paying extra attention, and only using an effective range. You can choose to use it.

As such, the shift lever may provide the user with an effective range A in various ways, and the above-described embodiments may be organically combined depending on the embodiment.

Next, the shift lever 100 may provide a function of resetting the effective range (A) when the specifications of the chainring 210, sprocket 230, and tire are changed. (S111)

In detail, the shift lever 100 may detect a user's re-input for the chainring 210, sprocket 230, and tire specifications.

Further, the shift lever 100 receiving the new specification information from the user may recalculate the gear ratio and chain resistance based on the acquired specification information, and the number of effective stages (A) and non-effective stages based on the recalculated gear ratio and chain resistance It can be set by reclassifying the singular number.

In detail, the shift lever 100 may reset the effective range (A) by directly detecting a change in tire circumference or by receiving an input from a user when a tire is replaced or the circumference is reduced due to wind loss.

In addition, the shift lever 100 may automatically reset the effective number A by detecting a change in the number of teeth of a gear due to a gear change.

For example, the shift lever 100 calculates a time for one rotation based on the circumference of the replaced gear-side tire, and during the one rotation time, the shift lever 100 produces a sound according to a change in the meshing position of the chain 270 and the gear. By sensing, the number of teeth of the replaced gear can be calculated.

That is, the shift lever 100 places a separate sound sensor on the gear side, measures the sound generated according to the change in engagement between the teeth of the gear and the chain 270 as driving, and measures the number of teeth of the gear based on the sound. By calculating , it is possible to obtain specification information of an automatically replaced gear.

Also, the shift lever 100 may reset the effective range A based on the changed specification information.

That is, the shift lever 100 may provide a function of resetting the effective range (A) of updating the effective range (A) in the above manner, and through this, change the range optimized for the current state of the bicycle 200. can be done

As such, the one-touch electronic shift lever 100 according to the embodiment of the present invention and the bicycle 200 including the same are controlled by connecting at least two different cables to one shift lever 100, so that one shift lever ( 100), the chainring 210 and the strap can be conveniently adjusted.

In addition, the one-touch electronic shift lever 100 according to an embodiment of the present invention and the bicycle 200 including the same allow a user to easily control a gear with one hand by using the one-touch electronic shift lever 100. can

Furthermore, the one-touch electronic shift lever 100 and the bicycle 200 including the same according to an embodiment of the present invention automatically derives and provides the gear ratio and chain resistance most suitable for the gear of the bicycle 200, Even users who do not have expert knowledge about the gear ratio and chain resistance of the bicycle 200 can effectively set and use multi-stage gears.

In addition, the one-touch electronic shift lever 100 according to an embodiment of the present invention and the bicycle 200 including the same select and provide the most suitable stage for use by the user in consideration of the automatically calculated gear ratio and chain resistance, The tension of the chain 270 can be effectively maintained based on a clear reason, and the user can use the gear more efficiently.

In addition, the one-touch electronic shift lever 100 and the bicycle 200 including the same according to an embodiment of the present invention are most suitable for use by the user when specifications such as the condition of the gear or tire of the bicycle 200 change. By resetting and providing the number of stages, it is possible to change the number of stages optimized for the state of the bicycle 200 .

Embodiments according to the present invention described above may be implemented in the form of program instructions that can be executed through various computer components and recorded on a computer-readable recording medium. The computer readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the computer-readable recording medium may be specially designed and configured for the present invention, or may be known and usable to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, and magneto-optical media such as floptical disks. medium), and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory 150, and the like. Examples of program instructions include high-level language codes that can be executed by a computer using an interpreter or the like as well as machine language codes generated by a compiler. A hardware device may be modified with one or more software modules to perform processing according to the present invention and vice versa.

Specific implementations described in the present invention are examples and do not limit the scope of the present invention in any way. For brevity of the specification, description of conventional electronic components, control systems, software, and other functional aspects of the systems may be omitted. In addition, the connection of lines or connecting members between the components shown in the drawings are examples of functional connections and / or physical or circuit connections, which can be replaced in actual devices or additional various functional connections, physical connection, or circuit connections. In addition, if there is no specific reference such as “essential” or “important”, it may not be a component necessarily required for the application of the present invention.

In addition, the detailed description of the present invention described has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those having ordinary knowledge in the art will find the spirit of the present invention described in the claims to be described later. And it will be understood that the present invention can be variously modified and changed without departing from the technical scope. Therefore, the technical scope of the present invention is not limited to the contents described in the detailed description of the specification, but should be defined by the claims.

Claims (9)

A method of operating a one-touch electronic shift lever for shifting at least two or more gears of a bicycle with one touch,
obtaining specification information by receiving specifications for at least one of a chainring, sprocket, and tire of the bicycle from a user;
Calculating a gear ratio based on the obtained specification information;
Calculating a chain resistance based on the obtained specification information;
classifying the integrated number of stages into an effective number of stages and an ineffective number of stages based on the gear ratio and the chain resistance;
Receiving a user's one-touch input to change the number within the valid number; and
Controlling the gear change of the chainring stage and the sprocket stage according to the input one-touch stage number change
Operation method of one-touch electronic shift lever. ◈Claim 2 was abandoned when the registration fee was paid.◈ According to claim 1,
obtaining the changed specification information when specifications of at least one of the chainring, the sprocket, and the tire are changed; and
Further comprising resetting the valid number according to the changed specification information
Operation method of one-touch electronic shift lever. ◈Claim 3 was abandoned when the registration fee was paid.◈ According to claim 1,
The step of classifying the valid and ineffective singular numbers,
Calculating an integrated number of stages by matching the number of stages of the chainring and the number of stages of the sprocket to form a combination
Operation method of one-touch electronic shift lever. ◈Claim 4 was abandoned when the registration fee was paid.◈ According to claim 3,
The effective number of stages is an integrated stage in which the chain resistance is less than a predetermined value among the integrated stages,
The ineffective stage is the integrated stage in which the chain resistance is greater than or equal to a predetermined value among the integrated stages.
Operation method of one-touch electronic shift lever. ◈Claim 5 was abandoned when the registration fee was paid.◈ According to claim 4,
The step of classifying the valid and ineffective singular numbers,
When changing from n-stage of the integrated stage to n+1 stage of the integrated stage, classifying the effective stage so that the changed stage of the sprocket is changed to less than a preset stage, further comprising
Operation method of one-touch electronic shift lever. ◈Claim 6 was abandoned when the registration fee was paid.◈ According to claim 4,
The step of classifying the valid and ineffective singular numbers,
Further comprising the step of staying for a predetermined time in any intermediate number included in the number of stages less than the preset number when it is necessary to change the number of stages equal to or greater than the preset number at a time,
The step of staying for a predetermined time in any intermediate stage,
Executing singular re-change to perform the singular change through a singular movement less than the preset singular number
Operation method of one-touch electronic shift lever. ◈Claim 7 was abandoned when the registration fee was paid.◈ According to claim 4,
The step of classifying the valid and ineffective singular numbers,
When there are a plurality of integrated stages determined to have similar gear ratios according to a predetermined criterion,
Further comprising the step of comparing the plurality of integrated stages with each other and setting the integrated stage having a lower chain resistance as the effective stage
Operation method of one-touch electronic shift lever. According to claim 1,
The step of performing a one-touch singular change based on the effective singular number,
Receiving a one-touch input from the user and simultaneously controlling the chainring and the sprocket of the bicycle based on the one-touch input to change the number of stages
Operation method of one-touch electronic shift lever. an input unit that receives specification information about at least one of a chainring, sprocket, and tire of a bicycle from a user, and receives a one-touch input for changing the number of integrated gears of the chainring and sprocket; and
A processor for calculating a gear ratio and chain resistance based on the input specification information,
the processor,
Based on the calculated gear ratio and chain resistance, the integrated number of stages is classified into an effective number of stages and an ineffective number of stages,
Upon receiving the user's one-touch input, determining a combined number to be changed according to the one-touch input within the valid number;
Simultaneously controlling the chainring and the sprocket to shift to the determined integrated stage
One-touch electronic shift lever.

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