KR100996867B1

KR100996867B1 - Break system of bicycle

Info

Publication number: KR100996867B1
Application number: KR1020100078513A
Authority: KR
Inventors: 이혁준
Original assignee: 이혁준
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2010-12-01

Abstract

The present invention relates to a braking device for a bicycle, the handpost of which is vertically fixed to one end of the support frame, the handle which is rotatably provided on both sides of the handle frame fixed to the handlepost horizontally; A rotating member fixed to the inner side of the handle, a screw screwed to the rotating member and reciprocating horizontally by the rotating member of the rotating member, and having a protrusion formed on one side thereof, the slider being reciprocally mounted therein. And a housing configured to include a housing in which a guide groove is formed to guide the movement of the protrusion when the slider is reciprocated. A braking part provided on the support frame to prevent the wheel from rotating; And a cable having one end connected to the brake part and the other end connected to the operation part to control the brake part by being pulled or pushed when the slider is reciprocated by the operation of the handle. It is done.
According to the present invention, the handle frame includes a moving part for pulling or pushing a brake for controlling the braking part, and by operating the operating part by the rotation of the handle, the user simply rotates the handle when driving and stopping the bicycle. By controlling the braking device, it is possible to easily operate the braking device without embarrassment even in an emergency situation, thereby preventing the safety accident in advance.

Description

Braking system for bikes {BREAK SYSTEM OF BICYCLE}

The present invention relates to a brake device for a bicycle, and more particularly, to a brake device for a bicycle capable of operating the brake device by rotating a handle that is rotatably installed at both ends of the hand frame is installed on the handle frame. .

In general, bicycles are one of the vehicles that have been used for a long time, but the number of users decreased due to the power engine using fossil fuels such as automobiles in the industrial society, but in modern times, the information society, For the modern people who are lacking, they are attracting new attention as a means of leisure and sports.

Such a conventional bicycle is provided with front and rear wheels at the front and rear, respectively, the handlepost is connected to the shaft of the front wheel, and the handle is fixed at the upper end thereof, and the support frame is fixed between the handlepost and the rear wheel in the horizontal direction and downward, respectively. do. The saddle frame is fixed to the middle of the support frame, and the saddle is fixed to the saddle frame. The drive shaft is rotatably connected to the lower left and right sides of the center of the support frame, and the pedals are fixed to both sides of the drive shaft, the driving sprocket wheel is fixed to one side of the driving shaft, and the driven sprocket wheel is fixed to the rear wheel shaft. The chain is connected between the sprocket wheel and the rear wheel sprocket wheel.

Therefore, when the user rotates each pedal while sitting in the saddle, the drive shaft is rotated and the drive sprocket wheel is rotated together. At this time, the driven sprocket wheel which is connected to the drive sprocket wheel by the chain is rotated to generate a driving force, and the driving force can move forward without falling down.

In such a bicycle, the occupant in the saddle holds both handles with both hands and pedals with his feet to advance the front wheel and the rear wheel, and when moving forward, the steering wheel held by the hand is turned left and right. Will be converted.

On the other hand, while riding a bicycle to stop at a specific place, or sometimes urgent need to stop the bicycle often occurs. Thus, a brake device for stopping the bicycle is provided on the bicycle.

The braking device includes an operating lever provided on the handle, a brake provided on the front wheel or the rear wheel, for stopping the rotation thereof, and a cable connecting the brake and the operating lever.

In the conventional bicycle braking device as described above, braking is performed by using the finger to grab the operating lever while the steering wheel is wrapped with the hand, and it is inconvenient to operate the operating lever with a finger in a sudden situation, In the case of small and weak children or elderly people who lack hand biographies, it was difficult to suddenly brake in an emergency situation.

Therefore, the present invention has been made in order to solve the above problems, by embedding the operating unit for operating the brake unit in the handle frame, by operating the operating unit by the rotation of the handle to control the brake unit, such as emergency situation It is an object of the present invention to provide a brake system for a bicycle that can easily prevent the occurrence of an accident by braking the brake unit easily without being embarrassed.

The present invention for achieving the above object, the handle post is fixed to one end of the support frame vertically, the handle is provided rotatably at both ends of the handle frame is fixed to the handle post horizontally; A rotating member fixed to the handle, a screw screwed to the rotating member, the slider being reciprocated horizontally by the rotation of the rotating member, and having a protrusion formed at one side thereof, and the slider mounted on the inner side so as to be reciprocated. An operating part including a housing in which a guide groove is formed to guide the movement of the protrusion when the slider is reciprocated, and a return part for returning the handle to its original state; A braking part provided on the support frame to prevent the wheel from rotating; And a cable having one end connected to the braking part and the other end connected to the operating part to control the braking part by being pulled or pushed when the slider is reciprocated by the operation of the handle. A moving protrusion formed at an inner circumference of one end of the handle; A guide hole formed at a predetermined length in a circumferential direction at one end of the handle frame and communicating with an inner space of the handle frame to guide the movement of the moving protrusion; A fixing protrusion protruding from one end of the handle frame; And an elastic member connected between the fixing protrusion and the moving protrusion to elastically support the handle in the circumferential direction.

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In addition, according to the present invention, the return portion is a fixing protrusion protruding from one end of the rotating member; A fixing part formed at an inner one end of a housing in which one end of the pivot member is rotatably supported; And an elastic body inserted into an outer circumference of one end of the rotation member, one end of which is fixed to the fixing protrusion, and the other end of which is fixed to the fixing part, and which is wound during rotation of the rotation member to accumulate an elastic force. It is done.

In addition, according to the present invention, the operation unit is mounted to the inside of the handle frame or handle, is fixed to the end of the rotating member is provided with a motor for rotating the rotating member, operation for operating the motor A button is provided on the handle or the handle frame.

According to the present invention, the handle frame has a built-in operation unit for pulling or pushing the cable for controlling the braking unit, and by operating the operation unit by the rotation of the handle, the user simply handles the handle when driving and stopping the bicycle. By controlling the braking device by rotating, it is possible to easily operate the braking device without embarrassment even in an emergency, thereby preventing the safety accident in advance.

1 is a front view showing a bicycle to which a braking device according to an embodiment of the present invention is applied.
Figure 2 is an exploded perspective view showing a brake operating device of the bicycle according to the first embodiment of the present invention.
3 is a cross-sectional view showing an operation unit in the brake device of the bicycle according to the first embodiment of the present invention.
4 is a cross-sectional view taken along line AA of FIG. 3.
Figure 5 is an exploded perspective view showing the main portion of the brake device of the bicycle according to the second embodiment of the present invention.
6 is a cross-sectional view of FIG. 5.

Specific embodiments of the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a front view showing a bicycle to which a brake device is applied according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing the operation portion and the handle in the brake device of the bicycle according to the first embodiment of the present invention. 3 is a cross-sectional view showing an operation unit in a brake device of a bicycle according to a first embodiment of the present invention, Figure 4 is a cross-sectional view A-A of FIG.

As shown, the brake device of the bicycle according to the present invention, the handle 100, the operation unit 200, the cable 300, the braking unit 400 is configured.

The handle 100 is rotatably fixed to the front end of the support frame 10, the handle post 20 is rotatably fixed to both ends of the handle frame 30 is fixed horizontally at the top of the handle post (20). do.

Handle 100 is connected to the operating unit 200 is installed inside the handle frame 30, the operating unit 200 is operated by the rotation of the handle 100 to pull or push the cable 300 braking unit And to control 400.

Actuator 200 is a housing 210 is installed on the inside of the handle frame 30, the slider 220 is installed to be reciprocally movable inside the housing 210, and the screw is coupled to the slider 220 and rotated It is configured to include a rotating member 230.

The housing 210 has a through hole 211 formed in the longitudinal direction, and a guide groove 212 is formed in the longitudinal direction on the inner circumference of the through hole 211. The guide groove 212 serves to guide the reciprocating movement of the slider 220 in the through hole 211. That is, the slider 220 is reciprocally mounted in the through hole 211 through an opening provided at one end of the housing 210.

The other end of the housing 210 has a fitting hole 213 into which the cable 300 is fitted into the housing 210.

The slider 220 is reciprocated in the through hole 211 and the guide groove 212 of the housing 210, the end of the cable 300 is fixed to pull or push the cable 300, the center of the inner circumference A spiral hole 221 is formed in which a thread is formed.

In addition, a protrusion 222 for fixing an end of the cable 300 is protruded on one side of the slide 220, and a fixing hole 222a into which the cable 300 is fitted is formed in the protrusion 222. At the edge of the fixing hole 222a, a seating groove in which the locking member 310 of the cable 300 is placed is formed.

Here, the locking member 310 provided at the end of the cable 300 is configured to be screwed to the end of the cable 300.

The rotating member 230 is formed with a thread 231 by a predetermined length in the middle thereof, and when the rotating member 230 is rotated by being coupled to the spiral hole 221 of the slider 220, the slider 220 is rotated. It is configured to reciprocate along the thread 231 of 230.

Here, one end of the rotation member 230 is rotatably supported by the inner end of the housing 210, the other end is configured to be completely fixed to the handle 100 provided at the end of the handle frame (30). A screw groove 232 is formed at one end of the rotation member 230, and fitted into the high information 101 formed inside the handle 100, and then fixed with a screw 102 at an outer side of the handle 100. will be.

That is, when the user rotates the handle 100, the rotating member 230 is rotated, and when the rotating member 230 is rotated, the slider 220 reciprocates along the thread 231 of the rotating member 230. It is configured as possible.

And, the operation unit 200 is further provided with a return unit 240 for returning to the original state by rotating the handle 100 that is operated and rotated to operate the braking unit 300 in reverse.

The return unit 240 is formed at one end of the handle frame 30 and the moving protrusion 241 formed at the inner circumference of the handle 100 and communicates with a space formed inside thereof and is formed to have a predetermined length and moves. A guide hole 242 for guiding the movement of the protrusion 241, a fixing protrusion 243 protruding from one end of the handle frame 30, and a connection between the fixing protrusion 243 and the moving protrusion 241. It is configured to include an elastic member 244 to elastically support the handle 100 in the circumferential direction.

Here, the handle 100 is to operate the operating unit 200 for pulling or pushing the cable 300 by the user to rotate by holding the hand, the role of the operation lever for pulling or pushing the cable in the conventional brake device of the bicycle. Will be performed.

Braking unit 400 is when the cable 300 is pulled by the operating unit 200, the braking member of the braking unit 400 is in close contact with the wheels 40 of the bicycle, to prevent the wheels 40 to rotate It is configured to stop the bicycle by stopping the bicycle or the brake member is in close contact with the drum in the drum provided on the rotating shaft of the wheel 40 when the cable 300 is pulled, to stop the rotation of the bicycle 40, The technology for this is already widely used, and a detailed description thereof will be omitted.

In addition, as shown in FIG. 6, the return part 250 includes a protrusion 251 protruding from one end of the rotation member 230 and a housing (not shown) to rotatably support one end of the rotation member 230. The fixing part 252 formed inside one end of the 210 and one end portion of the rotating member 230 are fitted to the protrusion 251 and the other end is fixed to the fixing part 252 so that the rotating member ( It is also applicable to the configuration including the elastic body 253 that stores the elastic force while winding during the rotation of 220.

Here, the elastic body 253 is composed of a spring that can be restored to its original state by rotating the rotating member 230 reverse by the elastic force accumulated while the rotating member 230 is rotated.

5 to 6 are an exploded perspective view and a cross-sectional view showing an operating part in the brake device of the bicycle according to the second embodiment of the present invention.

As shown, the brake device of the bicycle according to the second embodiment of the present invention, the operation button 110 provided on the handle 100 fixed to both ends of the handle frame 30, the handle frame 30 or the handle Actuator 200 is mounted on the inside of the 110, the support frame 10 is provided with a brake 400 for stopping the bicycle by stopping the rotation of the wheel 40, and the operating unit 200 and It is connected between the braking unit 400 includes a cable 300 for controlling the braking unit 400.

Actuator 200 is a housing 210 is installed inside the handle frame 30, the slider 220 is installed to be reciprocally movable inside the housing 210, screwed to the slider 220 is rotated It is configured to include a rotating member 230, and a motor 260 for rotating the rotating member 230.

Then, a battery (not shown) is provided inside the handle frame 30 or the handle 100, and the battery (not shown) is used as a power source of the motor 260. In addition, the battery is configured as a rechargeable battery, the battery is configured to be charged through a generator that generates electricity while being in contact with the wheel (40).

That is, since the operation button 110, the motor 260, and the battery are electrically connected to each other, and the operation button 110 is pressed, the motor 260 is driven to rotate the rotation member 230. Then, the slider 220 screwed to the pivot member 230 is moved to one side, and the cable 300 having one end fixed to the protrusion 222 of the slider 220 is pulled out so that the other end of the cable 300 is pulled out. By controlling the brake 400 to be fixed is to brake the bicycle.

In addition, a stopper 214 is provided inside the housing 210 to prevent the slider 220 from being moved by a predetermined distance. When the slider 220 is stopped by the stopper 214, the motor 260 is driven. Is stopped, and it is preferable to configure the motor 260 not to operate even when the operation button 110 is pressed, so as to prevent the motor 260 from being overloaded while the user presses the operation button 110.

On the other hand, in the second embodiment of the present invention also after the rotation of the rotating member 230 by operating the motor 260 in the braking device of the bicycle, the return unit 250 for returning the rotating member 230 to the original state is provided do.

Here, the return unit 250 adds a return button (not shown) to the operation button 110 provided in the handle 100 or the handle frame 30, and presses the return button to rotate the rotating member 230. The reverse rotation is configured to release the braking of the braking unit 400.

And, if the user does not operate the operation button 110 after pressing the operation button 110 for driving the motor 260, the return member 250 is automatically rotated back to the original state A configuration for fixing the elastic body 253 to return to the end of the rotating member 230 and the inside of the housing 210 is also applicable.

That is, the elastic body 253 is composed of a spring, one end of the spring is fixed to the rotating member 230, the other end is fixed to the inside of the housing 210, the motor 260 to rotate the member 230 When the user rotates and accumulates the elastic force, when the user releases the pressing of the operation button 110, the rotating member 230 is automatically reversed by the elastic force of the spring spring, and the brake is configured to release the braking part. It is.

The operation of the brake device of the bicycle according to the embodiment of the present invention having the above configuration will be briefly described as follows.

First, when a user rides a bicycle and gets off at a specific place or when an emergency situation occurs and tries to stop the bicycle, the braking device is operated.

In other words, when the user grabs the handle 100 of the handle frame 30 and rides the bicycle, the user rotates the handle 100 or presses the operation button 110.

Then, the rotating member 230 fixed to the handle 100 is rotated and the slider 220 is moved toward the handle 100 along the thread 231 of the rotating member 230, and the protrusion of the slider 220 is moved. The cable 300 fixed to the 222 is to be pulled.

At this time, the braking member of the braking unit 400 is fixed to the end of the cable 300 is in close contact with the wheel 40 generates a friction force to stop the rotation of the wheel 40, thereby stopping the bicycle.

As such, after the bicycle is stopped, in order to run again, the braking device must be released. To release the braking device, first, when the handle 100 is gently released by the hand, the handle 100 is released. It is reversed by the elastic member 244 of the return unit 240 to return to its original state.

When the handle 100 is reversely rotated, the rotating member 230 fixed to the handle 100 is reversely rotated and the slider 220 screwed to the rotating member 230 is opposite to the handle 100. Is moved to. At this time, the cable 300 fixed to the protrusion 222 of the slider 220 is pushed and loosened, thereby releasing the braking of the brake 400. That is, when the cable 300 is pushed and loosened, the braking member of the braking unit 400, which is in close contact with the wheel 40, falls off the wheel and the braking of the braking unit 400 is released.

When the braking of the brake unit 400 is released and the bicycle is ready for driving again, the user may start the bicycle by brightening the pedal.

10: support frame 20: handle post
30: handle frame 40: wheels
100: handle 110: operation button
200: operating unit 210: housing
211: through hole 212: guide groove
220: slider 230: rotating member
240, 250: return unit 260: motor
300: cable 310: locking member
400: braking part

Claims

A handle post vertically fixed to one end of the support frame and rotatably provided at both ends of the handle frame horizontally fixed to the handle post;
A rotating member fixed to the handle, a screw screwed to the rotating member, the slider being reciprocated horizontally by the rotation of the rotating member, and having a protrusion formed at one side thereof, and the slider mounted on the inner side so as to be reciprocated. An operating part including a housing in which a guide groove is formed to guide the movement of the protrusion when the slider is reciprocated , and a return part for returning the handle to its original state;
A braking part provided on the support frame to prevent the wheel from rotating; And
One end is connected to the braking part, and the other end thereof is connected to the operating part and includes a cable which is pulled or pushed to control the braking part when the slider is reciprocated by the operation of the handle,
The return portion is a moving protrusion formed in the inner circumference of the one end of the handle;
A guide hole formed at a predetermined length in a circumferential direction at one end of the handle frame and communicating with an inner space of the handle frame to guide the movement of the moving protrusion;
A fixing protrusion protruding from one end of the handle frame; And
Is connected between the fixed projection and the moving projection, the brake device of claim 1, characterized in that it comprises an elastic member for elastically supporting the handle in the circumferential direction.

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The method of claim 1,
The return portion is a fixing protrusion protruding from one end of the rotating member;
A fixing part formed at an inner one end of a housing in which one end of the pivot member is rotatably supported; And
It is fitted to the outer periphery of the rotating member, one end is fixed to the fixing projections, the other end is fixed to the fixing portion, characterized in that it comprises an elastic body that is wound during the rotation of the rotating member to accumulate the elastic force Braking system of the bicycle.

The method of claim 1,
The operation unit is mounted to the inside of the handle frame or handle, is fixed to the end of the rotating member is provided with a motor for rotating the rotating member,
A brake device for a bicycle, characterized in that an operation button for operating the motor is provided on the handle or the handle frame.