KR20100039069A

KR20100039069A - A bicycle

Info

Publication number: KR20100039069A
Application number: KR1020080098280A
Authority: KR
Inventors: 김성철
Original assignee: 김성철
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2010-04-15

Abstract

PURPOSE: A bicycle is provided to offer various types of exercise effect using a pedal unit creating a driving force through vertical pressing. CONSTITUTION: A bicycle comprises a front wheel(210), a rear wheel(220), a saddle(300), a pinion(400), and a pedal unit(600). The axles of the front and rear wheels are installed on the front and rear lower sides of a main frame(100). The saddle is installed on the rear upper end of the main frame. The pinion is installed in the axle of the rear wheel and forcibly rotates the axle only when the rear wheel rotates for forward driving. The pedal unit has a rack gear engaged with the pinion so that the pedal unit moves downward when the rack gear portion is pressed down and returns upward when releasing the pressure.

Description

Bicycle {a bicycle}

The present invention enables not only a method of rolling a pedal to rotate, but also a step of pressing a footrest (stepping) and a step of releasing pressure (a step of releasing), and in addition, driving by lifting and lowering the saddle. The present invention relates to a new type of bicycle, which makes it possible to further improve the exercise function.

In general, the ride means a device for the user's boarding, such as bicycles and boards.

Among the ride mechanism, the bicycle is configured to be driven by the operation of rotating a pair of pedals in a state where the user sits on the saddle, and the pair of pedals are connected to be capable of transmitting driving force by the rear wheel and the chain, When the pedal is rotated, the rear wheel is rotated through the chain to drive the bicycle.

In addition, a steering knob for steering the front wheel left and right is installed at the upper part of the front wheel, which is the front of the main body frame, thereby allowing free steering according to the needs of the user.

However, since the conventional general bicycle described above can be driven only by the operation of rotating the pedal, only the exercise effect of the body part according to the operation of rotating the pedal is provided, but the exercise effect on other body parts is extremely insignificant. There is a disadvantage in that it is impossible to exercise using shape or posture.

In addition, the conventional general bicycle described above has the disadvantage that the interest in the exercise has to be halved because only the repetition of the same operation of rotating the pedal is possible.

In particular, the conventional bicycle has a problem due to the frequent removal of the chain as well as the increase in the manufacturing cost due to the chain, considering that the driving force by the pedal is provided to the rear wheel through the chain.

The present invention has been made to solve the various problems according to the prior art as described above, the object of the present invention is to enable the running by stepping up and down to improve the fun of the operation and various It is to provide a new type of ride mechanism to provide the exercise effect.

According to the bicycle of the present invention for achieving the above object is a front wheel and a rear wheel rotatably installed in each of the front and rear bottom and rear bottom of the main frame; A saddle installed at an upper rear side of the main frame; A pinion installed on the rotary shaft of the rear wheel and having a ratchet module to forcibly rotate the rotary shaft only when the rear wheel rotates in a rotational direction for forward driving; The rack is installed at a rear side of the main frame, and a portion of the rack gear engaged with the pinion is formed to downwardly move the pinion forward by an operation of pressing the forming portion of the rack gear downward. In addition, it characterized in that it comprises a scaffolding portion: made of a resilient installation so as to return to the upper direction when the pressing force is released.

Here, the ratchet module is fixed to the rotary shaft and a ratchet wheel having a ratchet (ratchet) formed on the outer peripheral surface, one end is selectively engaged with the ratchet of the ratchet wheel, the other end is rotatably coupled to the inner peripheral surface of the pinion It is characterized in that it comprises a pawl, and a locking projection protruding on the inner wall surface of the pinion to keep the pool in engagement with the ratchet while contacting the other end of the pool when the pinion is rotated forward.

In addition, the pinion is provided at both ends of the rotating shaft, respectively, the footrests are provided on each side of the rear wheels, respectively, so that each rack gear is fitted to each of the pinions, and each other is a separate operation It is characterized in that it is configured separately.

In addition, the scaffolding is fixed to the fixed end is installed in the main frame in the up and down direction on the outer side of the rear wheel, and the upper portion is coupled to be lifted in a state located on the inside of the fixed end and the rack at the lower portion And an extension end having a gear formed thereon, and a footrest provided at a lower end of the extension end to provide a stepping area.

In addition, the rear side of the main frame is installed in the vicinity of the portion of the rear wheel is coupled to the rotation shaft is coupled, and the bottom portion of the scaffolding portion is in contact with the portion where the rack gear is formed to support the downward movement of the rack gear formed portion It characterized in that the support roller is configured to further include.

The bicycle according to the present invention as described above has an effect that can provide various types of exercise effects by providing a footrest configured to enable the driving according to the up and down pressure operation without using a chain.

In addition, the bicycle according to the present invention has the effect that it can provide a more diverse exercise effect by being configured to enable the forward running even by the lifting operation of the saddle.

Hereinafter, exemplary embodiments of the bicycle of the present invention will be described with reference to FIGS. 1 to 9.

1 and 2 are attached to the bicycle according to the first embodiment of the present invention, as can be seen through the bicycle according to the first embodiment of the present invention is largely the front wheel 210 and the rear wheel 220 ), The saddle 300, the pinion 400, and the scaffold 600.

This will be described in more detail for each component as follows.

First, the front wheels 210 and the rear wheels 220 are wheels configured to rotate about the axis of the rotation shafts 211 and 221 provided at the center portion, and the rotation shafts 211 and 221 of each of the wheels 210 and 220 are the main frame ( It is rotatably provided in the front bottom part and the back bottom part of 100, respectively.

Here, the main frame 100 is a portion constituting the body of the bicycle, and comprises a handle coupling end 110, the saddle coupling end 120 and the rear wheel coupling end 130.

The handle coupling end 110 is a portion that is coupled to the fork rotary shaft 111 for the installation of the front wheel 210 is located on the front side. At this time, the handle 112 for steering is coupled to the upper end of the fork rotating shaft 111.

In addition, the saddle coupling end 120 is a portion where the saddle portion 300 is provided to provide a sitting area is formed extending from the handle coupling end 110 toward the rear side.

In addition, the rear wheel coupling end 130 is a portion for the installation of the rear wheel 220 is located on the rear side, the fork rotating shaft 111, the fork toward both ends of the rotating shaft 221 of the rear wheel 220 It is formed extending in a true state.

Along with this, the rear end of the saddle engaging end 120 and the rear end of the rear wheel engaging end 130 are more preferably configured to be connected to each other by an extension end 140.

Next, the pinion 400 is a gear installed on the rotation shaft 221 of the rear wheel 220.

In particular, a ratchet module is provided between the pinion 400 and the rotation shaft 221 to forcibly rotate the rotation shaft 221 only when the rear wheel 220 rotates in the rotation direction for advancing forward.

Here, the ratchet module is fixed to the rotary shaft 221 as shown in Figures 3 and 4 attached to the ratchet wheel (510) is formed with a ratchet (ratchet) 511 on the outer peripheral surface, one end of the ratchet wheel 510 Optionally engaged with the ratchet 511, the other end of the pinion 400 is rotatably coupled to the inner circumferential surface of the pinion 400, and protrudes to the inner wall surface of the pinion 400, the pinion 400 When the forward rotation is in contact with the other end of the pole 520 is configured to include a locking step 530 to maintain the state in which the pole 520 is engaged with the ratchet 511.

Next, the scaffolding part 600 is a series of components configured to move forward the rear wheels 220 by pressing in the downward direction.

The scaffolding part 600 is installed at the rear side of the main frame 100, and part of the scaffold 600 is resiliently installed to return to the upper direction when the pressing force is released.

The footrest 600 as described above is fixed to the tubular fixed end 610 which is fixed to the extension frame 150 extending from the rear wheel coupling end 130 constituting the main frame 100 to face in the vertical direction ), And the lower portion of the elevating end 620 and the lower end of the elevating end 620 are installed so as to be elevated so as to be positioned adjacent to the pinion 400 of the rotating shaft 221 through the fixed end 610. And a footrest 630 installed to provide a stepped area at the end.

At this time, the rack gear 621 is formed on the surface facing the pinion 400 of each of the lifting end 620.

5 and 6, the lifting end 620 is moved upward to return to its original position when the pressing force on the lifting end 620 is released inside the fixed end 610. An elastic member 640 is installed to allow the elastic member 640 to have one end fixed in the fixed end 610 and the other end fixed to a portion of the elevating end 620. When it moves downward, it increases and is configured to be restored when the lifting force of the elevating end 620 is released.

In particular, the lifting end 620 is not necessarily configured to be elevated only in the vertical direction from the ground, as shown in the drawing, it is configured to be inclined obliquely toward the front side convenient operation in the state sitting on the saddle 300 It can also be done.

If the saddle 300 is located on the front side relative to the rear wheel 220, the lifting end 620 is configured to be inclined to face the rear side at an angle so that the operation of the saddle 300 sitting on the saddle 300 is performed. It is desirable to make it convenient.

In addition, in the first embodiment of the present invention, the rack gear of the elevating end 620 in a portion adjacent to the portion of the rear side of the main frame 100 to which the rotary shaft 221 of the rear wheel 220 is coupled ( It is further suggested that the supporting roller 650 is further included to be rolled in contact with the side opposite to the surface 621 is formed.

At this time, the support roller 650 supports the downward movement of the lifting end 620, thereby serving to enable a stable downward movement of the lifting end 620.

On the other hand, in the embodiment of the present invention, the pinion 400 of each of the above-described configuration is provided at each of both ends of the rotary shaft 221, respectively, the footrest 600 is provided on each side of the rear wheel 220, one each In this state, each rack gear 621 is installed to be engaged with each pinion 400 respectively, and the two scaffold units 600 are separately configured to allow individual operations.

That is, by installing each one footrest 600 on both sides of the rear wheel 220, and configured to enable the individual operation between the two footrest 600, it is not only possible to run by the pressing operation of any one foothold portion The driving is also possible by the sequential pressing operation of the two footrests, and the driving is also possible by the simultaneous pressing operation of the two footrests.

In addition, the fixed end 610 constituting the scaffold 600 is not necessarily configured to be maintained only in a fixed state.

That is, the fixed end 610 is configured to be movable and rotatable to the extension frame 150, it may be configured to maintain a fixed state by the user's operation in the position.

Such a structure may be configured to pressurize the footrest part 600 in an up-down direction and may be configured to obliquely press from the rear side to the front side, and may also be configured to press the obliquely toward the rear side from the front side. This is to provide the exercise effect as needed.

For example, in the state where the user sits directly on the saddle 300, the footrest 600 is preferably configured to be pressed upward and downward, and the user is lying on the front side while sitting on the saddle 300. In the case of taking the footrest 600 is preferably configured to press obliquely toward the rear side from the front side, the footrest when the user takes a posture inclined to the body while sitting on the saddle 300 It is preferred that 600 be configured to press obliquely from the rear side toward the front side.

In the following, the operation of the bicycle according to the embodiment of the present invention having a series of the configuration described above will be described.

First, in the state in which the footrest 630 of the first two footholds 600 is not pressed, the lifting end 620 constituting the two footholds 600 is moved upward by the restoring force of the elastic member 640. Keep it. This is the same as the state of Figures 1 and 5 attached.

In this state, when the user presses the foot down on the footrest 630 of any one footrest 600 (or both footsteps) and presses downward, the footrest by the pressing force as shown in FIGS. The lifting end 620 of the part 600 is moved downward, and thus the pinion 400 meshed with the rack gear 621 of the lifting end 620 is rotated in the forward direction.

In this case, when the support roller 650 supports the downward movement of the elevating end 620, the rack gear 621 of the elevating end 620 is stably engaged with the pinion 400. Because of this, the stable rotation of the pinion 400 is made.

Subsequently, when the rotation operation of the pinion 400 is made, the pool 520 coupled to the pinion 400 is maintained while being engaged with the ratchet 511 of the ratchet wheel 510 as shown in FIG. 3. In addition to rotating the ratchet wheel 510, the rotation shaft 221 is rotated by the rotation of the ratchet wheel 510, and the rear wheel 220 is rotated forward.

In addition, the user presses the footrest 630 of the other footrest part 600 while the footrest 630 of one footrest part 600 is completely pressed through the series of processes described above. Continuous rolling motion of the wheel 220 is made.

At this time, the footrest 630 of the one footrest unit 600 may release the pressure by the user's selection, even if the pressure is not released to the operation for the continuous rolling operation of the rotary wheel 220 It doesn't matter. This is possible because the two scaffolding portions 600 are configured to be individually operated with each other.

If the force for pressing the footrest 630 of the one footrest part 600 is removed by the user's selection, as the elastic member 640 of the footrest part 600 is restored, The lifting end 620 is moved upward while returning to the original position.

In this case, when the elevating end 620 of the one footrest part 600 is moved upward, the rack gear 621 of the elevating end 620 is engaged with the pinion 400 and thus the inverse of the pinion 400. Rotation is made, but when the reverse rotation of the pinion 400 is made, as shown in FIG. 4, the poles 520 only cross the slope formed by the ratchet 511 of the ratchet wheel 510. Will not rotate.

As a result, the rear wheels 220 are able to maintain stable forward rotation.

As a result, as the above-described operation of pressing and releasing the respective stools 630 of the two scaffolding parts 600 sequentially and / or simultaneously, the rear wheel 220 is continuously rotated forward. As a result, the smooth running of the bicycle is made and the user obtains the exercise effect by the repeated pressurization motion.

On the other hand, the bicycle according to the present invention may be configured to be capable of traveling using the saddle 300.

This, the saddle 300 is configured to be elastically lifted from the main frame 100 as needed, the upper end portion of the lifting end 620 constituting the two footrest 600 is the saddle 300 By selectively combining with).

An embodiment thereof is as shown in FIGS. 7 and 8.

If, in the embodiment described above, the bicycle is configured to run even by the saddle 300, the saddle 300 may be used to drive using only the two footrest units 600 without using the saddle 300. In addition to releasing the coupling 300 and the two footrest 600, the saddle 300 can be fixed to the main frame 100.

In addition, as shown in Figure 9 attached to the rotating shaft 221 of the rear wheel 220 according to an embodiment of the present invention may be configured to selectively couple the pedal 700 used in the existing bicycle.

This is to improve the user's satisfaction according to the variety of exercise effects and the variety of operation by driving by operating the footrest unit 600, or by using the pedal 700 to drive according to the needs of the user. to be.

At this time, the pedal 700 and the rotating shaft 221 of the rear wheel 220, although not shown, by installing the ratchet module presented in the embodiment of the present invention, even if not a separate chain or gear structure forward of the rear wheel 220 It is preferable that it is comprised so that driving is possible.

1 and 2 are side views showing for explaining the external structure of the bicycle according to the preferred embodiment of the present invention

3 and 4 is a cross-sectional view of the main portion shown to explain the structure of the scaffolding with the bicycle viewed from the front according to a preferred embodiment of the present invention

5 and 6 is a cross-sectional view of the main portion shown to explain the installation state of the ratchet module of each configuration of the bicycle according to an embodiment of the present invention.

7 and 8 is a cross-sectional view of the main portion shown to explain the structure of the scaffolding with the bicycle viewed from the front according to another embodiment of the present invention

Figure 9 is a side view showing for explaining the external structure of the bicycle according to another embodiment of the present invention

Explanation of symbols for main parts of the drawings

100. Main frame 110. Handle joint

111. Fork pivot 112. Handle

120. Saddle Joints 130. Rear Wheel Joints

140. Extension 150. Extension frame

210. Front wheels 211. Shaft

220. Rear wheels 221. Spindle

300. Saddle 400. Pinion

510. Ratchet Wheel 511. Ratchet

520. Pool 530. Jamming jaw

600. Scaffolding 610. Fixed End

620. Platform 621. Rack Gear

630. Scaffolding 640. Elastic members

650. Supporting Roller

Claims

A front wheel and a rear wheel on which the respective rotating shafts are rotatably installed at the front bottom and the rear bottom of the main frame;

A saddle installed at an upper rear side of the main frame;

A pinion installed on the rotary shaft of the rear wheel and having a ratchet module to forcibly rotate the rotary shaft only when the rear wheel rotates in a rotational direction for forward driving; And,

It is installed on the rear side of the main frame, while the rack gear is engaged with the pinion is formed in a portion of the downward movement so that the pinion is rotated forward by the operation of pressing the forming portion of the rack gear in the downward direction A footrest comprising: a footrest made of a resilient installation so as to return in an upward direction when the pressing force is released.

The method of claim 1,

The ratchet module is

A ratchet wheel having a ratchet formed on an outer circumferential surface thereof while being fixed to the rotary shaft;

One end is selectively engaged with the ratchet of the ratchet wheel, the other end is a fool rotatably coupled to the inner peripheral surface of the pinion,

And a locking jaw protruding from an inner wall of the pinion so as to be in contact with the other end of the pool when the pinion is rotated forward to maintain the pool in engagement with the ratchet.

The method of claim 1,

The pinions are respectively provided at both ends of the rotation shaft,

And the scaffolding unit is installed on each side of the rear wheels so that each rack gear is engaged with each of the pinions, respectively, and is separately configured to enable individual operations with each other.

The method according to any one of claims 1 to 3,

The scaffolding part

A fixed end fixed to an outer side of the rear wheel of the main frame along a vertical direction;

The upper portion is coupled to be lifted in a state located inside the fixed end and the lower portion is an extension end formed with the rack gear,

And a footrest provided at a lower end of the extension end to provide a stepping area.

The method of claim 1,

Of the rear side of the main frame is installed adjacent to the portion where the rotating shaft of the rear wheel is coupled,

The bicycle, characterized in that further comprising a support roller for supporting the downward movement to the portion of the rack gear is formed in contact with the rack gear formed part of the scaffold.