KR101746061B1 - Driving and driven for a quick Board - Google Patents

Abstract

The present invention relates to a quick board for running, wherein two freewheels driven by pressing of a foot member reciprocate within a locus between a top dead center and a bottom dead center to continuously rotate one driving wheel in a forward direction only in a forward direction, And to reduce the number of revolutions of the driving wheel to a large number of revolutions of the driving wheels to improve the driving force.
The driving quick board according to the present invention comprises: a frame; A handle mounted on the frame; A board installed in the frame for seesaw motion about the board hinge point and having first and second connecting rod hinge points on the front and rear sides of the board hinge point; A first connecting rod connected to the hinge point of the first connecting rod of the board, the upper end of the first connecting rod being connected to the first connecting rod; A second connecting rod connected to the second connecting rod hinge point of the board to convert the other seesaw drive of the board into a rectilinear motion, and a second connecting rod, which is bi-directionally rotated by rectilinear motion of the first connecting rod, A first freewheel that generates a rotational force while descending due to the depression of the first freewheel and maintains the free state at the time of the rise; A second freewheel rotating in both directions by a linear motion of the second connecting rod, the second freewheel generating a rotating force while descending due to the pressing of the other side of the board, and maintaining a free state when the second connecting rod rises; A freewheel shaft connecting the first freewheel and the second freewheel to the first and second connecting rods, respectively; A driving wheel connected directly or indirectly to the first freewheel and the second freewheel and rotated 360 ° in a forward direction by alternately receiving rotational force from the first freewheel and the second freewheel; A plurality of power transmission means for transmitting rotational force of the driving wheels; And a driving wheel that is installed on the frame and contacts the ground surface and receives rotational force from the power transmitting means and is driven at 360 °, and the freewheel shaft is a first or second crank type freewheel shaft or a first or second tie type freewheel shaft .

Description

[0001] Driving and driven for a quick board [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a quickboard for driving, and more particularly, to a quickboard for running in which a driving wheel continuously rotates in a forward direction without momentary stopping by operation of a foot member (board, first and second pedals).

Driving-driving quick-boards can be used as sports equipment, rides or transportation vehicles.
Among the various methods of rotating the drive shaft, a crankshaft can be used, a lever and a pinion can be used, and an electric motor or an engine can be used.

In order to rotate the drive shaft by human force, it is difficult to obtain a large driving force due to the small feature of the wheels and it is also very difficult to advance quickly.
The driving quickboard for driving is designed not to be high on the ground. In rotating the crankshaft or the like, the crankshaft arm has a short length so that a large turning force can not be obtained. Even if the driving force is obtained, the diameter of the quick- If you do not, the speed of the quick board is too short because the forward distance is short, and there is a lot of problems in running.
The present applicant found that two or more fatal defects were found during the sample production of the quick board (Patent Application No. 10-2010-0027596) and the patent registration was abandoned. If the contents were described, 25) to connect the connecting rod, it is very difficult to attach the projections.
That is, when the projections are welded, the projections are deformed and the projections are attached to the side surfaces of the freewheel. As a result, floating on one side is difficult to form a source, and the agglomeration of the pressing force from the drive board The strength to support was weak and the fatigue of the metal increased a lot. In addition, since the freewheel, which is commercially available, can not be used, it has to be manufactured specially. Therefore, the manufacturing cost such as the mold cost has increased, and the concern about the recall order due to the design defect after the production and sale was very high.
Another problem was that the speed was too slow to be used for driving. As a problem with the speed, when I looked at the large chainring (23 in FIG. 17) among the contents I filed, I feel that the front chainring is large Still, the speedboard was very slow when I ran the quickboard. However, if the chain ring (23 in FIG. 17) is enlarged to increase the gear ratio, the size of the chain ring becomes higher than the height of the wheel, and it becomes unusable because it touches the ground. In the sample test of the conventional patent, the final driving wheel was not rotated a few times by driving the driving board up and down one time, and the diameter of the wheel was so small that the driving force was not generated, which made it unsuitable for driving. Another problem is that since the kickboard is low in height, the rotating body that is driven is slow and inertial, so that the rotating body is stopped at the top dead center or bottom dead center.
This error is included in the claims of the prior art
Claim 1
And a power transmitting portion for transmitting the 'rotational motion of the front freewheel and the rear freewheel to the driving wheels'.
. Continuing (the previously filed claim)
In the fifth, twelfth, nineteenth, twenty-third, thirty-ninth, thirty-ninth and thirty-ninth aspects, the rotation of the freewheel is transmitted to the driving wheels. However, when the freewheel is rotated, it is difficult to rotate absolutely smoothly. Driven freewheel. The driving freewheel has a property that after stopping at the bottom dead center, the connecting rod eccentrically moves on the driving board toward the suspended direction, that is, in the opposite direction.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a two-wheeled vehicle in which two free wheels driven by pressing of a foot member reciprocate within a locus between a top dead center and a bottom dead center The present invention also provides a driving quick board for driving the vehicle, which ensures continuous running without stopping only in the advancing direction, secures the running property, and also converts a small number of revolutions of the driving wheel into a large number of revolutions of the driving wheel to improve the propulsive force.

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

delete

The driving quick board according to the present invention comprises: a frame; A handle mounted on the frame; A foot member provided on the frame; A first connecting rod hinged to an upper end of the foot member to convert one side seesaw drive of the foot member into a linear motion; A second connecting rod hinged to an upper end of the foot member to convert the other side seesaw drive of the foot member into a linear motion; A first freewheel rotated in both directions by the linear movement of the first connecting rod, generating a rotational force by being lowered by pressing one side of the foot member, and maintaining a free state when the first connecting rod descends; A second freewheel rotating in both directions by a linear movement of the second connecting rod, the second freewheel generating a rotating force while descending due to the pressing of the other side of the foot member, A freewheel shaft eccentric to the shaft portion and connected to the first and second connecting rods to rotate the first and second freewheels; A driving wheel connected directly or indirectly to the first freewheel and the second freewheel and rotated 360 ° in a forward direction by alternately receiving rotational force from the first freewheel and the second freewheel; A plurality of power transmission means for increasing and transmitting the rotation of the driving wheel; And a driving wheel which is installed on the frame and contacts the ground, and receives driving force from the power transmitting means and is driven at 360 °.
Wherein the freewheel shaft is a crank-type freewheel shaft or a T-type freewheel shaft.

The first and second freewheels are rotated in a certain angle within a certain angle without passing through the dead point due to seesaw motion of the board or seesaw motion of the first and second pedals, The speed of the driving wheel can be increased without increasing the size of the driving wheel by increasing the number of revolutions of the driving wheel and transmitting it to the driving wheel. It has the effect of feeling a great propulsion and speed feeling.
Particularly, crank-type freewheel shafts and T-type freewheel shafts are manufactured to be coupled to the shaft holes of the first and second freewheels, as they are welded to the surface of the freewheel like the conventional crankpins, so that mass production is easy and the defect rate is low, .

delete

delete

delete

delete

delete

delete

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing the entire configuration of a driving drive quick board according to Embodiment 1 of the present invention; FIG.
2 is a plan view of a driving-drive quick board according to Embodiment 1 of the present invention;
3 is a plan view showing a power transmission path applied to a driving drive quick board according to Embodiment 1 of the present invention;
4 is a perspective view showing a driving unit of a driving driving quick board according to Embodiment 1 of the present invention.
5 is a diagram showing an example of power transmission between a driving wheel and a first and second freewheels applied to a driving driving quick board according to Embodiment 1 of the present invention;
6 is an operation diagram for explaining rotation of a driving wheel applied to a driving-drive quick board according to Embodiment 1 of the present invention;
7 is a view showing a comparison of a moving range of a freewheel applied to a driving driving quick board according to a first embodiment of the present invention.
Fig. 8 is an exemplary view of a power transmitting means applied to a driving driving quick board according to Embodiment 1 of the present invention; Fig.
FIG. 9 is an exploded view of first and second crankshaft type freewheel shafts and first and second tie type freewheel shafts applied to a driving drive quick board according to Embodiment 1 of the present invention; FIG.
10 is a plan view of a driving drive quick board according to a second embodiment of the present invention.
11 is a plan view showing a power transmission path applied to a driving drive quick board according to Embodiment 2 of the present invention.
12 is a perspective view showing a driving unit of a driving drive quick board according to a second embodiment of the present invention;
13 is a perspective view of a handle fixing pin applied to a driving drive quick board according to the present invention;
FIG. 14 is a view showing a folding example of the driving drive quick board according to the second embodiment of the present invention; FIG.
15 is a view of a transmission applied to a driving drive quick board according to a second embodiment of the present invention.
16 is a view showing a suspension device applied to a driving drive quick board according to a second embodiment of the present invention.
17 is a view showing a driving part of a quick board for the prior art.

The present invention will now be described in detail with reference to the accompanying drawings.

≪ Example 1 >
1 to 4, the driving quick board according to the present invention includes a frame 1, a handle 2 mounted on the frame 1, a board (not shown) 10, the first and second connecting rods 20-1 and 20-2 connected to the bottom of the board 10, and the first and second connecting rods 20-1 and 20-2, First and second freewheels 30-1 and 30-2 for generating a rotational force only when the board 10 is pressed while maintaining a free state in which no rotational force is generated when the board 10 is lifted, A driving wheel 40 that rotates 360 degrees in the forward direction by the rotational force of the first and second free wheels 30-1 and 30-2 to generate a driving force for running the quick board, The driving wheel 50, the first freewheel 30-1 and the second freewheel 30-2, which are transmitted through the power transmitting means, are connected to the first and second connecting rods 20-1 and 20-2, The first and second crankshafts Freewheel shafts 60-1 and 60-2 or first and second T-shaped freewheel shafts 70-1 and 70-2.
Steering wheels 51 are provided on the handle 2, and the frame 1 and the handle 2 are widely used in the quick board, and a detailed description thereof will be omitted.
The board 10 is connected to the frame 1 so that the center of the bottom thereof is seesawed to the frame 1 through the board hinge point 11 when the user steps forward and backward, The first and second connecting rod hinge points 12 and 13 are formed on the front and rear sides of the hinge point 11, respectively. Here, the hinge points 11, 12, and 13 refer to the hinge-connected portions.
The first and second return springs 14 and 15 are used to elastically support the front and rear sides of the board 10 in front and rear of the frame 1, respectively. The first and second return springs 14 and 15 are elastic members that help stop the seesaw movement of the board and change the direction of movement when the front and rear of the board 10 are lowered by the force applied by the user's feet, to be.
The first connecting rod 20-1 is provided with a ring for hinge connection on both sides in the longitudinal direction and an upper end portion is connected to the first connecting rod hinge point 12 of the board 10 on the basis of the assembled state, 10) is shifted to linear motion and the lower end of the first crank-type free wheel shaft 60-1 (or the first tie-type freewheel shaft 70-1) .
The second connecting rod 20-2 is provided with a ring for hinge connection on both sides in the longitudinal direction. The upper end of the second connecting rod 20-2 is connected to the second connecting rod hinge point 13 of the board 10, And the lower end portion of the second crest type free wheel shaft 60-2 (or the first tie type freewheel shaft 70-2) is switched to the linear motion, .
The first freewheel 30-1 is rotatably mounted on the frame 1 and rotatably supported by the first crank-type freewheel shaft 60-1 (or the first tie-shaped freewheel shaft 70-1) That is, generates a rotational force when the front of the board 10 descends, and maintains the free state when the front of the board 10 rises.
The second freewheel 30-2 is rotatably mounted on the frame 1 and is rotated by 174 ° by the second crank-type free wheel shaft 60-2 (or the second tie-shaped free wheel shaft 70-2) That is, when the rear of the board 10 is lowered, generates a rotational force and maintains the free state when the rear of the board 10 rises.
As shown in FIGS. 4 and 9, the first and second crank-type free wheel shafts 60-1 and 60-2 are formed in a straight line, and are horizontally arranged at the centers of the first and second freewheels 30-1 and 30-2 (Fixed to the shaft hole formed at the center of the first and second free wheels 30-1 and 30-2), a shaft portion extending from the end of the shaft portion and having first and second connecting rods 20-1 and 20-2 And a rod connection portion to which the rod connection portion is connected.
The first and second crank-type free wheel shafts 60-1 and 60-2 formed by such a structure and assembly method are not fixed to the surfaces of the first and second freewheels 30-1 and 30-2 It is very easy to assemble and maintain, and does not cause a phenomenon of being separated from the first and second freewheels 30-1 and 30-2.
Wherein the rod connecting portion includes a first vertical portion formed in a direction toward the periphery of the first and second freewoels at an end of the shaft portion, a second vertical portion extending parallel to the shaft portion at an end of the first vertical portion, A second vertical part extending parallel to the first vertical part at an end of the hinge connection part, and an extension part extending in the same line with the shaft part at an end of the second vertical part.
The position of the hinge connection portion is a position deviated from the center of the shaft portion, that is, the first and second free wheels 30-1 and 30-2, and the right side of the top dead center is the initial position when viewed from the side of FIG. Falling and rising are repeated between point and bottom point, and rotating force is generated when falling, and it is free state when rising.
The first and second crank-type freewheel shafts 60-1 and 60-2 thus configured are supported on the frame 1 so as to be rotatable through bearings or the like on both sides in the longitudinal direction.

The first and second tie type freewheel shafts 70-1 and 70-2 have the same structure as that of the first and second crank type free wheel shafts 60-1 and 60-2, (A shaft hole) that is connected to the center (shaft hole) of the first free wheel 30-2 and the center (shaft hole) of the second free wheel 30-2, (30-1) and the second freewheel (30-2), and the lower ends of the first and second connecting rods (20-1, 20-2) are connected to each other. do. The positions of the rod connecting portions are the same as the positions of the rod connecting portions of the first and second crank-type free wheel shafts 60-1 and 60-2.
The drive wheel 40 is directly or indirectly connected to the first freewheel 30-1 and the second freewheel 30-2 and is rotated alternately from the first freewheel 30-1 and the second freewheel 30-2 And rotates 360 degrees in the forward direction. That is, when the first freewheel 30-1 is lowered (the second free wheel 30-2 is in the rising free state), the driving wheel 40 rotates, and the second free wheel 30-2 (The first free wheel 30-1 is in a rising free state), a driving force is generated to rotate the driving wheel 40, so that the driving wheel 40 rotates 360 degrees only in the forward direction 6 and 7).
The drive wheel 40 is formed on the drive shaft and the drive shaft, and is connected to the first and second free wheels 30-1 and 30-2 (various configurations such as gears can be used depending on the shape of the freewheel).
The first and second freewheels 30-1 and 30-2 may be directly coupled to the driving wheel 40 through a medium such as a chain or a belt to receive rotational force.

8, the power transmitting means includes a first rotating body 80 formed coaxially with the driving wheel 40, a second rotating body 80 having a size smaller than that of the first rotating body 80, A second rotating body 82 rotatably connected to the first rotating body 82 by a belt 81 as shown in the figure, a second rotating body 82 connected coaxially with the second rotating body 82, The third rotating body 83 is formed to have a smaller size than the third rotating body 83 and is rotatably connected to the third rotating body 83 directly or indirectly (shown as being directly connected to the drawing) The fifth rotating body 85 is coaxial with the fourth rotating body 84 and is larger than the fourth rotating body 84. The fifth rotating body 85 is smaller in size than the fifth rotating body 85, (To be connected by a chain 86) directly or indirectly to the driving wheel 85. The driving wheel 50 is rotated (connected to the shaft of the driving wheel 50 and rotated) And a sixth rotating member 87 for rotating the second rotating member.
Preferably, the first and second rotors 80 and 82 are pulleys, the third and fourth rotors 83 and 84 are gears, the fifth rotator is a chain wheel, and the sixth rotator 87 is a freewheel.

The operation principle according to this embodiment will be described as follows.

The board 10 is reciprocally rotated in a large circle (Rc in FIG. 6) and does not extend to the bottom dead center. The board 10 has elasticity at around the bottom dead center of the first and second crank-type free wheel shafts 30-1, And the first and second return springs 14 and 15 are provided on the first and second freewheels 30-1 and 30-2. When the front and rear sides of the board 10 are pressed, And rotates.
The first and second connecting rods 20-1 and 20-2 are reciprocally rotated in the up-and-down direction of the intermediate circle (Rb in Fig. 6) At this time, the first and second crank-type free wheel shafts 60-1 and 60-2 (first and second tie type freewheel shafts 70-1 and 7-2) And the driving wheel 40 is always rotated 360 degrees in the forward direction.

delete

As a method of converting the small number of revolutions of the driving wheel 40 by the power transmitting means into the number of revolutions of the driving wheel 50 and explaining a simple example of the effect of the speed,
As shown in FIG. 3, assuming that the driving wheel 40, which is the point p1, rotates by one rotation, in the previously-proposed invention, since the rotational speed is directly transmitted using the gear ratio of 3: 1 to the point p4, However, in the present invention, since the gear ratio is increased by several steps using 2: 1, the p1 point is increased by one rotation, the p2 point is rotated by two rotations, the p3 point is rotated by four rotations, and the p4 point is rotated by eight rotations And the final drive wheel 50 rotates 8 revolutions. That is, the final driving wheel 50 rotates eight times by pressing the board 10 once
Assuming that the size of the part is smaller than that of the conventional part because the gear ratio is smaller than 2: 1 of the conventional 3: 1 ratio, and the diameter of the drive wheel is 10 cm, the conventional quick board has a gear ratio of 3: The driving quick board according to the present invention was moved 251.2 cm. That is, since the above-mentioned distance was shifted by the reciprocating rotational motion of the driving board 1 in a large up-and-down direction (Rc in FIG. 6), the driving force and speed were remarkably increased 7, the length of the first and second crank-type free wheel shafts becomes long, and conventionally, the protrusion to which the connecting rod is connected can not be brought close to the edge of the freewheel, , The two-tiered freewheel shaft can further extend the portion to which the first and second connecting rods are connected, that is, the length of the hinge connection portion can be made longer than the position of the conventional projection, So long Garret single length increases the torque.

≪ Example 2 >
As shown in Figs. 10 to 12, the driving quick board according to the present embodiment is changed to the first and second pedals 10-1 and 10-2 instead of the board 10 of the first embodiment, The rod 20-1 is connected to the first pedal 10-1 at its upper end to drive the first freewheel 30-1 by switching the seesaw drive of the first pedal 10-1 to linear motion, 2 connecting rod 20-2 is connected to the second pedal 10-2 so that the seesaw drive of the second pedal 10-2 is switched to linear motion to drive the second freewheel 30-2 .
The first and second pedals 10-1 and 10-2 may be connected through a guide 10-3 so that the up and down movements are reversely interlocked with each other. The guide 10-3 is a wire, a chain, or the like so that the first and second pedals 10-1 and 10-2 can be reversely moved up and down by a roller or the like.
The elastic members applied to the first and second pedals 10-1 and 10-2 can also be applied to the first embodiment.
The drive wheel 40 is formed coaxially with the first and second power transmission wheels 41 and 42 receiving the rotational force from the first freewheel 30-1 and the second free wheel 30-2, And is driven in the advancing direction.
Although the first and second tie-type freewheel shafts 701- and 70-2 are shown in the drawing, the first and second crank-type free wheel shafts 60-1 and 60-2 are similarly applied .
Other configurations are the same as those of the first embodiment, and therefore, a detailed description thereof will be omitted.

Hereinafter, configurations to be added to the present invention will be described.
1. Brake.
A brake for forcibly stopping the rotation of the driving wheel 50 is provided.
The brakes can be variously employed, such as a compression method using a pad, and the handle 2 is provided with a brake lever 3 for braking.
2. Handle retaining pin for frame and handle assembly.
1 and 13 and 14, the frame 1 and the handle 2 are configured to be foldable. At this time, the frame 1 and the handle 2 are separated by the handle fixing pin 4 Lt; / RTI >
A hole for assembling and rotating the handle fixing pin 4 is formed in the frame 1 and a hole having an opening portion communicating with the hole and opening toward one side is formed at the end of the handle 2 inserted into the frame 1 And the handle fixing pin 4 is inserted into the hole of the frame 1 and the hole of the handle 2 to fix the handle 2 to the frame 1 while the handle 2 is spaced inward from the end A rectangular locking portion is provided on the periphery of the frame 1 so as to be foldable. The locking portion is formed to be larger in width than the opening formed in the hole of the handle 2 so as to lock the handle 2 and to be smaller in thickness than the opening formed in the hole of the handle 2, do.
Further, as shown in Fig. 14, the frame 1 and the handle 2 may be configured to be folded by a hinge.
3. Extensions.
The board 10 is applied with an extension plate 16 (shown in Fig. 4) extending by folding or sliding. The extension plate 16 is also applicable to the first and second pedals 10-1 and 10-2 of the first and second embodiments.
4. Transmission.
As shown in Fig. 15, the transmission 90 includes a large-diameter gear 91 that rotates upon receiving a rotational force from the driving wheel 40, a small-diameter gear 91 that is coaxial with the large- A small diameter transmission 93 having an outer diameter smaller than that of the large diameter gear 91 and a large diameter transmission 93 formed coaxially with the small diameter transmission 93 with an outer diameter larger than that of the small diameter transmission 93, 94, the small-diameter transmission 93, and the large-diameter gear 94, and the power transmission member 95 and the small-diameter transmission 93 that transmit the rotational force to the drive wheels coaxially with the large-diameter gear 91 And a shift lever 96 for connecting the large-diameter transmission 94 to the small-diameter gear 92 so as to perform shifting. The small-diameter transmission member 93 and the large-diameter transmission member 94 are configured to be slidable left and right through the sliding bar, and the power transmitting member 95 is configured to receive the rotational force without moving left and right when the sliding bar is moved left and right. .
5. Suspension.
As shown in FIG. 16, includes a suspension device for absorbing the vibration transmitted from the driving wheel 50 and the steering wheel 51. The suspension is a buffer spring (17).
6. Saddle.
A saddle that allows the user to sit on the frame is applied.
7. Electric motor, battery and engine.
An electric motor (using a battery for charging electricity) or an engine is applied to drive the drive wheels 50 electrically or engineically.

delete

delete

delete

delete

1: frame, 2: handle
10: board, 10-1, 10-2: 1st and 2nd pedals
20-1, 20-2: first and second connecting rods,
30-1, 30-2: 1st and 2nd freewheels
40: driving wheel, 50: driving wheel
60-1, 60-2: first and second crankshaft type freewheel shafts,
70-1, 70-2: first and second tie type freewheel shafts,

Claims (25)

A frame;
A handle mounted on the frame;
A foot member provided on the frame;
A first connecting rod hinged to an upper end of the foot member to convert one side seesaw drive of the foot member into a linear motion;
A second connecting rod hinged to an upper end of the foot member to convert the other side seesaw drive of the foot member into a linear motion;
A first freewheel rotating in both directions by a linear movement of the first connecting rod, the first freewheel generating a rotating force while being lowered by pressing one side of the foot plate member and maintaining a free state when the first connecting rod descends;
A second freewheel rotating in both directions by a linear movement of the second connecting rod, the second freewheel generating a rotating force while descending due to the pressing of the other side of the foot member,
A shaft portion connected to the center of the first and second freewheels and a hinge connection portion eccentrically formed from the shaft portion and connected to the first and second connecting rods, A freewheel shaft for rotating the respective freewheels;
A driving wheel connected directly or indirectly to the first freewheel and the second freewheel and rotated 360 ° in a forward direction by alternately receiving rotational force from the first freewheel and the second freewheel;
A plurality of power transmission means for increasing and transmitting the rotation of the driving wheel;
And a driving wheel that is installed on the frame and contacts the ground and is driven by receiving a rotational force from the power transmitting means,
Wherein the multi-stage power transmitting means includes: a first rotating body formed coaxially with the driving wheel; a second rotating body of a size smaller than the first rotating body and connected to the first rotating body so as to be rotatable in direct or indirect contact; A third rotating body connected coaxially with the second rotating body and having a size larger than that of the second rotating body, a fourth rotating body connected to the third rotating body so as to be rotatable in direct or indirect contact with the third rotating body, A fifth rotating body that is coaxial with the fourth rotating body and has a size larger than that of the fourth rotating body, a second rotating body that is smaller than the fifth rotating body and is connected to the fifth rotating body so as to be directly or indirectly rotatable, And a sixth rotating body for rotating the driving wheels. The motorcycle according to claim 1,
And a rod connecting portion extending from an end of the shaft portion and connected to the first and second connecting rods, wherein the rod connecting portion includes a rod connecting portion extending from an end of the shaft portion A first vertical portion formed in a direction toward the periphery of the first freewheel; a hinge connection portion extending from the shaft portion at an end of the first vertical portion and hinged to the first and second connecting rods; A second vertical portion extending parallel to the first vertical portion, and an extension extending in the same direction as the shaft portion at an end of the second vertical portion. The method according to claim 1,
The free wheel shaft includes a shaft portion connected to the center of the first and second freewheels, an extension portion extending from the shaft portion, and a hinge connection portion formed at an end portion of the extension portion and hingedly connected to a lower end portion of the first and second connecting rods And the first and second tie-type freewheel shafts. delete The method according to any one of claims 1 to 3,
The footrest member is installed in the frame so as to perform a seesaw motion about the board hinge point, and the first and second connecting rod hinge points are formed at the front and rear of the board hinge point, respectively, Wherein the board is a single board. The driving quick board according to claim 5, further comprising an elastic member installed on the frame and supporting the board to stop the seesaw movement and to change the direction of movement of the board. The footrest according to any one of claims 1 to 3, wherein the foot member is a first and a second pedals,
The first and second connecting rods are connected to the first and second pedals, respectively. The first and second free wheels are connected to the first and second pedals, respectively, Drive quick-board for driving. The method of claim 7,
Wherein the driving wheel is installed coaxially with the first and second power transmission means receiving rotational force from the first freewheel and the second freewheel. The method of claim 7,
And an elastic member installed on the frame and supporting the first and second pedals to stop the seesaw motion and to change the direction of motion. The method of claim 7,
And a guide for connecting the first and second pedals to each other so that the first and second pedals can be connected to each other so that the first and second pedals are inversely interlocked with each other. The method according to any one of claims 1 to 3,
And a brake for braking the driving wheels. The method according to any one of claims 1 to 3,
And a handle fixing pin for separating and coupling the frame and the handle. The method according to any one of claims 1 to 3,
Wherein the first to sixth rotators are either pulleys, gears, chain wheels or freewheels, and are indirectly connected to the adjacent rotors either directly or via a power transmitting member. The method according to any one of claims 1 to 3,
And a saddle mounted on the frame. The method of claim 5,
And an expansion plate formed on the board so as to be expandable by folding or sliding. The method according to any one of claims 1 to 3,
And a suspension for absorbing vibration transferred from the driving wheels. The method according to any one of claims 1 to 3,
A large diameter gear which is smaller in diameter than the large diameter gear and coaxially formed with the large diameter gear, a small diameter transmission having an outer diameter smaller than that of the large diameter gear, A large-diameter gearbox coaxial with the small-diameter gearbox with a larger outer diameter, a power transmitting member coaxial with the small-diameter gearbox and the large-diameter gearbox to transmit rotational force to the drive wheels, Or a transmission lever for connecting the large-diameter transmission to the small-diameter gear so as to perform a shifting operation.
The method of claim 7,
And an expansion plate formed on the first and second pedals so as to be extended by folding or sliding.

delete delete delete delete delete delete delete

Images