KR20100098877A - Kick board - Google Patents

Abstract

PURPOSE: A manual kickboard is provided to stably support the kickboard by forming a pair of rear wheels in the kick board and to be used for aged persons. CONSTITUTION: A manual kickboard comprises a frame(10), a front wheel(22), a handle(30), rear wheels(40), a pedal shaft(52), a first pedal(54), a second pedal(56), connection units(60), an one-way power transmission unit, and a power transmission unit(80). The front wheel is steered around a steering shaft(20). The handle is connected to the steering shaft. The rear wheels are arranged in a line. The pedal shaft is rotatably installed in the frame. The first and second pedals are rotatably installed in the pedal shaft. The connection units connect the first and second pedals. The one-way power transmission unit transfers driving force of the first and second pedals to the pedal shaft. The power transmission unit drives the rear wheels.

Description

Manual Kickboard {KICK BOARD}

The present invention relates to a manual kickboard, and more particularly to a manual kickboard that can safely ride in a more comfortable posture without falling down during driving.

An example of a play or exercise device is a kickboard. The kickboard consists of a footrest on which one foot can be placed, a front wheel provided at the front of the footrest, a rear wheel provided at the rear of the footrest, and a handle that can steer the front wheel.

The kickboard is supported by placing one foot on the footrest and then running on the ground with the other foot. If necessary, the steering wheel is steered to adjust the driving direction.

However, such a conventional kickboard has a disadvantage in that the movement effect is concentrated only on one foot and the leg, because the structure uses only one foot and the leg to run, and thus, the problem of not being able to expect an even movement effect of the human body is caused. have.

In view of this, a number of manual kickboards that can be expected to evenly exercise the body has been proposed.

As an example, there is a "manual kickboard" of Korean Patent Application No. 10-2007-65574 filed by the present applicant.

This technology includes a frame, front and rear wheels installed at the front and rear of the frame, a handle capable of steering the front wheels, and a pedal unit for driving the rear wheels with the input force from both feet of the user. .

In particular, the pedal device includes a first pedal that the user can step on with his left foot, a second pedal that the user can step on with his right foot, a first power transmission means for transmitting the power of the first pedal to the rear wheel, and a second pedal And a second power transmission means for transmitting the power of the vehicle to the rear wheel.

The manual kickboard of this configuration has a merit that both feet and legs can be used because the structure is driven by using the foot power of both feet, and thus, an even exercise effect of the human body can be expected.

However, such a conventional manual kickboard has a disadvantage that the front wheel and the rear wheel are arranged in a straight line, so that it is easy to fall during driving, and because of these disadvantages, there is a problem that the body is not suitable for use by the weak or the elderly.

In particular, when the physically weak or the elderly fall down while riding on the kickboard, there is a problem that there is even a fear of serious injury.

In addition, the conventional manual kickboard, there is a disadvantage that the occupant is easily tired and tired because of the structure to stand, there is a problem that difficult driving for a long time. In particular, there is a problem in that it is not suitable for use by the physically weak or the elderly who are inconvenient to use the waist, pelvis and knee joints due to the disadvantage of having to stand.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object thereof is to provide a manual kickboard that can safely ride without falling while driving the wheel structure.

Another object of the present invention is to provide a manual kickboard that can be safely ride for a long time in a more comfortable posture by configuring to sit and ride.

Still another object of the present invention is to provide a manual kickboard which is very suitable for use by the weak and the elderly who are inconvenient to the body by being able to sit comfortably and drive safely.

Manual kickboard according to the present invention for achieving the above object, the frame; A front wheel installed at the front of the frame and steerable around a steering shaft; A handle connected to the steering shaft to steer the front wheel; A plurality of rear wheels installed side by side at intervals behind the frame; A pedal shaft rotatably installed on the frame; First and second pedals rotatably installed on the pedal shaft so that a user can step on each foot; Connecting means for connecting both of the first and second pedals so that the up and down motions of the first and second pedals can be interlocked in opposite directions; The driving force of the first and second pedals rotated forward in the pedaling direction is transmitted to the pedal shaft, and the driving force of the first and second pedals rotating in the opposite direction of the pedaling force is not transmitted to the pedal shaft. Power transmission means; It characterized in that it comprises a power transmission means for driving the rear wheels by transmitting the driving force of the pedal shaft to both rear wheels.

Manual kickboard according to the invention, the rear wheel is composed of a pair, it is supported on the ground stably. Therefore, it is possible to travel in a more stable posture, thereby, there is an effect that can run safely without falling during the driving.

In addition, the manual kickboard of the present invention has a structure that allows the user to sit and board, so that the occupant can run for a long time in a more comfortable posture.

In addition, the manual kickboard of the present invention, because it is a structure that can be more comfortable sitting safely running, it is also very suitable for use by the weak and the elderly who are uncomfortable.

Hereinafter, a preferred embodiment of the manual kickboard according to the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIGS. 1 and 2, the manual kickboard of the present invention includes a frame 10, and a steering shaft 20 is rotatably installed at the front of the frame 10.

The steering shaft 20 is rotatably installed in the head tube 12 of the frame 10, the front wheel 22 is installed at the lower end thereof, and the handle 30 is installed at the upper end thereof.

The front wheel 22, by rolling along the ground, serves to support the front portion of the frame 10 to the ground.

The handle 30 is composed of a handle shaft 32 which is coaxially connected to the steering shaft 20, and a handle bar 34 provided at an upper end of the handle shaft 32.

The handle 30 is a front wheel 22 which is installed on the steering shaft 20 as the user rotates the steering shaft 20, and rotates the steering shaft 20 as the handle bar 34 is rotated. Steer.

On the other hand, the handle shaft 32, in the form of a telescopic (telescopic), is configured by assembling a plurality of shaft segments (32a) in multiple stages, these multi-stage shaft segments (32a) is configured to be stretchable and retractable in some cases do. Therefore, it is possible to adjust the height of the handle bar 34 installed on the top according to the physical condition of the user. Here, the elongated and retracted multistage shaft segments 32a are fixed to each other by the tightening lever 32b. Therefore, it is possible to maintain the elongated or retracted state.

The steering shaft 20 and the handle shaft 32 are provided to be foldable on the frame 10 about the hinge shaft 20a. Therefore, as shown in FIG. 7, the frame 10 can be carried in a folded state. This makes it very easy to carry the kickboard.

1 and 3, the manual kickboard of the present invention includes a pair of rear wheels 40 rotatably installed at the rear of the frame 10.

The pair of rear wheels 40 are rolling along the ground and are installed side by side at both ends of the wheel shaft 42 provided in the frame 10.

The pair of rear wheels 40 serves to support the rear portion of the frame 10 to the ground.

1 to 6, the manual kickboard of the present invention includes a pedal device 50 for driving both rear wheels 40 with the input power from both feet of the user.

3 to 6, the pedal device 50 includes a pedal shaft 52 rotatably installed on the frame 10 and a first pedal rotatably installed on the pedal shaft 52. 54 and the second pedal 56, and the connecting means 60 for connecting the up and down movement of the first pedal 54 and the second pedal 56 in the opposite direction to each other.

The pedal shaft 52 is arranged in the transverse direction of the frame 10, and both portions are rotatably provided to the frame 10.

The first pedal 54 and the second pedal 56 are installed side by side on both sides of the pedal shaft 52, and are configured to be stepped on by both feet of the user.

As shown in FIGS. 3 to 5, the connecting means 60 includes a first actuating rod 62 and a second pedal 56 that are articulatedly connected to one side of the first pedal 54. It is provided with a second operation rod 64 connected to one side jointly rotatable, and a connecting link 66 for interlockingly connecting the first operation rod 62 and the second operation rod (64).

The first actuating rod 62 is connected to the protruding arm 54b protruding from the center of rotation 54a of the first pedal 54. The first actuating rod 62 is connected to the first pedal 54. When pressed by the user's effort is configured to be pulled in one direction.

The second actuating rod 64 is connected to the protruding arm arm 56b protruding from the center of rotation 56a of the second pedal 56, and the second actuating rod 64 connected in this way is the second pedal 56. When pressed by the user's effort is configured to be pulled in one direction.

The connection link 66 is rotatably installed around the hinge shaft 66a on the frame 10, and one end 66b is connected to the first operating rod 62 so as to be articulated, and the other end ( 66c) is articulatedly connected with the second actuating rod 64.

This connecting link 66, the one of the first operating rod 62 and the second operating rod 64, when one of the operating rod 62 is pulled in one direction, the center of the hinge shaft (66a) While rotating, the other actuating rod 64 serves to push and move in the other direction.

Thus, the movements of the first actuating rod 62 and the second actuating rod 64 can act in opposite directions. As a result, the movement of the first actuating rod 62 and the second actuating rod 64 acting in opposite directions can also act on the first pedal 54 and the second pedal 56. As a result, the first pedal 54 and the second pedal 56 may also interlock in opposite directions.

According to the connecting means 60 of the above configuration, since the first pedal 54 and the second pedal 56 are connected to each other in the opposite direction, the first pedal 54 and the second pedal ( 56, if either side descends, the other side can rise.

Thus, the first pedal 54 and the second pedal 56 alternately ascend. As a result, the user can input the answering power while stepping on the first and second pedals 54 and 56 alternately.

3 to 6 again, the pedal device 50 is provided in one direction between the first pedal 54 and the pedal shaft 52 and between the second pedal 56 and the pedal shaft 52. Further provided with one-way clutches (70).

The one-way clutch 70 is a device that transmits power only in one direction, and the driving force of the first and second pedals 54 and 56 that are forwardly rotated downward in the user's stepping direction, that is, downward is transmitted to the pedal shaft 52. The driving force of the first and second pedals 54 and 56 which are transmitted and reversed in the opposite direction, that is, upward, is not transmitted to the pedal shaft 52.

Therefore, only the user's stepping force input to the first and second pedals 54 and 56 can be transmitted to the pedal shaft 52, thereby allowing the pedal shaft 52 to rotate only in the forward direction.

3 to 6 again, the pedal apparatus 50 includes a power transmission means 80 for transmitting the driving force of the pedal shaft 52 to both rear wheels 40.

The power transmission means 80 includes a drive sprocket 82 provided on the pedal shaft 52, the wheel shaft 42 connecting both rear wheels 40 to each other, and a follower provided on the wheel shaft 42. The sprocket 84 and the chain 86 which connects the drive sprocket 82 and the driven sprocket 84 are provided.

The power transmission means 80, when the driving force of the pedal shaft 52 is transmitted to the drive sprocket 82, the driving force transmitted to the drive sprocket 82 is the wheel shaft through the chain 86 and the driven sprocket 84 Is passed to 42.

The driving force transmitted to the wheel shaft 42 rotates both rear wheels 40 in the same manner. As a result, both rear wheels 40 are driven while rotating at the same speed, and the rear wheels 40 thus driven drive the kickboard of the present invention forward.

Referring again to FIGS. 1 and 2, the manual kickboard of the present invention includes a brake device 90 for braking the front wheels 22.

The brake device 90 includes a brake lever 92 provided on the handlebar 34 so that the user can rotate as the user grabs, a cable 94 pulled by the rotated brake lever 92, 있도록 to make frictional contact with each of the U-shaped links 96 and the both ends of the front wheels 22, both ends being gradually tightened toward both sides of the front wheels 22 while intersecting by the pulled cable 94; It consists of a brake shoe 98 fixed to both ends of the female link 96.

In particular, the brake shoe 98 has the front wheel 22 in friction contact with each of both surfaces of the front wheel 22 as both ends of the U-shaped link 96 are tightened toward both sides of the front wheel 22. Braking

Since the brake device 90 has a structure in which the user brakes the front wheel 22 as the user grips the brake lever 92, the brake device 90 can quickly and easily brake the running kickboard. Therefore, even if a sudden situation occurs while driving, braking can be performed quickly, and accordingly, a safety accident due to a sudden situation during driving can be prevented in advance.

On the other hand, in the drawings and detailed description of the present invention, the brake device 90 is described as braking the front wheel 22, but it is also possible to configure the rear wheel 40 in some cases.

1 and 2, the manual kickboard of the present invention includes a seat 100.

The seat 100 is installed at the rear of the frame 10 and configured to allow a user to sit down. This sheet 100 is configured to adjust the height. Therefore, the height can be adjusted according to the user's body size.

On the other hand, such a sheet 100 is provided to be foldable to the frame 10 around the hinge axis (100a). Therefore, as shown in FIG. 7, the frame 10 can be carried in a folded state. This makes it very easy to carry the kickboard.

Next, the use example of this invention which has such a structure is demonstrated with reference to FIGS.

First, while the user is sitting on the seat 100, the left foot and the right foot are placed on each of the first pedal 54 and the second pedal 56, and they step on them alternately.

Then, in each of the first pedal 54 and the second pedal 56, the user's foot force is alternately input, and the input foot force is transmitted to the pedal shaft 52 to rotate the pedal shaft 52.

Then, when the pedal shaft 52 is rotated, the rotational force of the pedal shaft 52 is transmitted to the driving sprocket 82, and the driving force transmitted to the driving sprocket 82 again causes the chain 86 and the driven sprocket 84 to rotate. It is transmitted to the wheel shaft 42 through.

And the wheel shaft 42 to which the driving force is transmitted drives both rear wheels 40. Then, both rear wheels 40 are driven while rotating at the same speed, and the driving rear wheels 40 drive the kickboard forward.

According to the manual kickboard of the present invention having such a configuration, since the rear wheel 40 is composed of a pair, it is stably supported on the ground. Therefore, it is possible to travel in a more stable posture, whereby it is possible to travel safely without falling down during driving.

In addition, the manual kickboard of the present invention, the user can sit and ride, so that the passenger can travel for a long time in a more comfortable posture.

In addition, the manual kickboard of the present invention, because it is a structure that can be more comfortable sitting safely running, it is also very suitable for use by the weak and the elderly who are uncomfortable.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope of the claims.

1 is a perspective view showing the configuration of a manual kickboard according to the present invention;

2 is a side view showing the configuration of a manual kickboard according to the present invention;

Figure 3 is a perspective view showing in detail the pedal device constituting the manual kickboard of the present invention,

Figure 4 is a side view showing in detail the pedal device constituting the manual kickboard of the present invention,

5 is a cross-sectional view taken along the line VV of FIG. 4;

6 is a cross-sectional view taken along line VI-VI of FIG. 4;

Figure 7 is a side view showing a folded state of the handle and seat constituting the manual kickboard of the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

10: frame 12: front frame portion

14: rear frame portion 15: shock absorber (Shock Absorber)

16: Head Tube 20: Steering Shaft

22: front wheel 30: handlebar

32: handle axis 32a: axis segment

34: handlebar 40: rear wheel

42: wheel axle 50: pedal unit

52: pedal shaft 54: first pedal

56: second pedal 60: connecting means

62: first operating rod 64: second operating rod

66: connecting link 66a: hinge shaft

70: one-way clutch 80: power transmission means

82: sprocket 84: driven sprocket

86: chain 90: brake device

92: brake lever 94: cable

96: male link 98: brake shoe

100: seat

Claims (5)

A frame 10; A front wheel 22 installed at a front portion of the frame 10 and capable of steering around a steering shaft 20; A handle 30 connected to the steering shaft 20 to steer the front wheel 22; A plurality of rear wheels 40 installed side by side at intervals behind the frame 10; A pedal shaft (52) rotatably installed on the frame (10); First and second pedals (54, 56) rotatably installed on the pedal shaft (52) so that the user can step on each foot; Connecting means (60) for connecting both of the first pedal (54) and the second pedal (56) so that the up and down motions interlock in opposite directions; The driving force of the first and second pedals 54, 56 which are rotated forward in the pedaling direction is transmitted to the pedal shaft 52, and the first and second pedals 54, 56 which rotate in the opposite direction of the pedaling force. A driving force of one direction does not transmit to the pedal shaft 52; Manual kickboard, characterized in that it comprises a power transmission means for transmitting the driving force of the pedal shaft (52) to both rear wheels (40) to drive the rear wheels (40). The method of claim 1, The connecting means 60, A first actuating rod (62) connected to one side of the first pedal (54) so that the first pedal (54) can be pulled in one direction as it is pressed by the stepping force; A second actuating rod (64) connected to one side of the second pedal (56) so that the second pedal (56) can be pulled in one direction as it is pressed by the stepping force; When the frame 10 is rotatably installed around the hinge shaft 66a and any one of the first and second pedals 54 and 56 is pressed and the corresponding operation rod is pulled in one direction, Manual kickboard, characterized in that it comprises a connecting link (66) for lifting the corresponding pedal by rotating the other operation rod in the other direction while rotating about the hinge shaft (66a). The method of claim 1, The one-way power transmission means, A one-way clutch 70 installed between the first pedal 54 and the pedal shaft 52 and between the second pedal 56 and the pedal shaft 52. kickboard. The method of claim 1, The power transmission means 80, A drive sprocket 82 installed on the pedal shaft 52; A wheel shaft 42 connecting the rear wheels 40 to each other; A driven sprocket 84 installed on the wheel shaft 42; The driving force of the pedal shaft 52 is driven with the driving sprocket 82 so that the driving sprocket 82, the driven sprocket 84, and the wheel shaft 42 can be transmitted to both rear wheels 40. Manual kickboard, characterized in that it comprises a chain (86) connecting the sprocket (84). 5. The method according to any one of claims 1 to 4, Manual kickboard, characterized in that it further comprises a seat 100 installed in the frame 10 so that the user can sit.

Images