KR101217367B1

KR101217367B1 - Kick scooter

Info

Publication number: KR101217367B1
Application number: KR1020100081196A
Authority: KR
Inventors: 최철규
Original assignee: 최철규
Priority date: 2010-08-23
Filing date: 2010-08-23
Publication date: 2012-12-31
Also published as: KR20120018415A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kick scooter capable of obtaining propulsion force by moving back and forth of a steering wheel as a kick scooter driving on a foot surface by holding a steering wheel. The kick scooter 1 of the present invention, the footrest (10) elongated to put the foot; A rear wheel 20 rotatably mounted to the rear of the footrest 10; A handle tube 30 rotatably installed in the front-rear direction on the bracket 11 extending in front of the footrest 10; A handle shaft 40 inserted into the handle tube 30 so as to be steered left and right and having a handle 41 formed at an upper end thereof; A front wheel 50 rotatably mounted at a lower end of the handle shaft 40; A driven sprocket 60 which is addressed to the rear wheel 20 and exerts a rotational force on the rear wheel 20; A drive sprocket 70 installed on the foot plate 10 adjacent to the handle tube 30 to apply rotational force to the driven sprocket 60; An electric chain 80 which is caught between the driving sprocket 70 and the driven sprocket 60 to transmit the rotational force of the driving sprocket 70 to the driven sprocket 60; A crank mechanism (90) installed between the handle tube (30) and the drive sprocket (70) for converting the front and rear reciprocation of the handle tube (30) into a rotational movement of the drive sprocket (70); And a locking mechanism (100) installed on the bracket (11) to selectively block the forward and backward rotation of the handle tube (30). It includes.

Description

Kick Scooter {KICK SCOOTER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kick scooter. More particularly, the present invention relates to a kick scooter capable of obtaining propulsion force by moving back and forth of a steering wheel as a kick scooter that travels while holding a steering wheel and boarding a footrest.

Among the rides is a kick scooter that grabs the handlebars and rides on the scaffold.

KickScooter has the effect of improving balance and strength of the lower body, but the effect on the upper body including the arm is relatively weak.

SUMMARY OF THE INVENTION An object of the present invention is to provide a kick scooter that can obtain propulsion force not only by kicking the ground but also by moving the handle back and forth, so that an exercise load can be applied not only to the lower body but also to the upper body.

According to the present invention, a kick scooter is provided.

The kick scooter according to the present invention includes a footrest, a rear wheel, a handle tube, a handle shaft, a front wheel, a driven sprocket, a drive sprocket, an electric chain, and a crank mechanism.

The scaffold is a plate-shaped member elongated to place a foot.

The rear wheel is a traveling wheel that is rotatably mounted to the rear of the footrest.

The handle tube is a tubular member that is rotatably installed in the front-rear direction on a bracket extending in front of the foot plate.

The handle shaft is inserted into the handle tube so as to be steered left and right and has a handle formed at an upper end thereof.

The front wheel is a wheel for driving and steering rotatably mounted at the lower end of the handle shaft.

The driven sprocket is a sprocket which is protruded to the rear wheel to apply rotational force to the rear wheel.

The driving sprocket is a sprocket installed on the scaffold adjacent to the handle tube to apply a rotational force to the driven sprocket.

The transmission chain is a chain which is caught between the driving sprocket and the driven sprocket and transmits the rotational force of the driving sprocket to the driven sprocket.

The crank mechanism is a mechanism that is installed between the handle tube and the drive sprocket to convert the front and rear reciprocating movement of the handle tube into the rotational movement of the drive sprocket.

In the kick scooter of the present invention, when the handle tube is moved back and forth by holding the handle, the driving sprocket rotates by the crank mechanism, and the rotation of the driving sprocket rotates the rear wheel through the electric chain and the driven sprocket. It is transmitted in rotation to generate propulsion.

As the driven sprocket, a ratchet sprocket may transmit a forward rotational force of the driven sprocket through the reciprocating movement of the handle tube to the rear wheel, but the forward rotational force of the rear wheel is not transmitted to the driven sprocket.

Preferably, the crank mechanism includes a first crank pin formed on the handle tube, a second crank pin formed on an outer circumference of the driving sprocket, and a connecting rod rotatably connecting between the first crank pin and the second crank pin. It includes, The connecting rod is detachably assembled from the first crank pin and the second crank pin.

Preferably, the bracket is provided with a locking mechanism for selectively blocking the forward and backward rotation of the handle tube.

According to the kick scooter according to the present invention, since the driving force can be obtained not only by kicking the ground by foot, but also by moving back and forth of the steering wheel, there is an effect of applying an exercise load not only to the lower body but also to the upper body.

1 is a perspective view of an exemplary kick scooter according to the present invention;
2 is a side view of an exemplary kick scooter according to the present invention;
3 is a cross-sectional view of an exemplary kick scooter according to the present invention;
4 is an operation diagram of an exemplary kick scooter according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail the kick scooter according to the present invention. The following embodiments are merely illustrative of the kick scooter according to the present invention and are not intended to limit the scope of the present invention.

1 to 4, the kick scooter 1 according to the present invention, the footrest 10, the rear wheel 20, the handle tube 30, the handle shaft 40, the front wheel 50, the driven The sprocket 60, the drive sprocket 70, the transmission chain 80, and the crank mechanism 90 are included.

The scaffold 10 is a plate-shaped member that is elongated enough to place a user's foot, and is formed of a material having a strength sufficient to support a user's foot and support a load thereof. There is no restriction in particular.

The rear wheel 20 is a wheel used for traveling in the kick scooter 1 of the present invention together with the front wheel 50, is rotatably installed at the rear of the footrest (10).

The handle tube 30 is a member installed in front of the footrest 10 to support the handle shaft 40. According to a feature of the present invention, the handle tube 30 is rotatably installed in the front and rear direction on the bracket 11 extending from the footrest 10.

In the embodiment shown by way of example, the bracket 11 is formed in a substantially tracer shape. One side of the bracket 11 is fixed to the footrest 10, and the other side of the bracket 11 is formed with a U-shaped mounting groove 12. The handle tube 30 is coupled to the mounting groove 12 by a hinge pin 13 to be rotatable in the front-rear direction.

The handle shaft 40 is a handle 41 and the front wheel 50 is installed, the shaft is held by the hand to support the steering while the steering. The handle shaft 40 is inserted into the handle tube 30 so as to be steered left and right, and a handle 41 which is easy to hold by hand is installed at an upper end thereof. The left and right steerable assembly structure for the handle tube 30 of the handle shaft 40 can be applied to known techniques in the related art, including a kick scooter and a bicycle.

Preferably, the height of the handle shaft 40 may be adjusted to be adjusted according to a user's body size. In FIG. 1, reference numeral 42 is a fastener for fixing the height of the height-adjusted handle shaft 40.

The front wheel 50 is rotatably installed at the lower end of the handle shaft (40). The front wheel 50 is responsible for the driving of the kick scooter 1 according to the present invention together with the rear wheel 20, while holding the handle 41 and rotating the handle shaft 40 to the handle tube 30 from side to side. The front wheels 50 rotate left and right together to steer.

According to the characteristic assembling structure of the footrest 10, the handle tube 30, the handle shaft 40 and the front wheel 50 as described above, the user can steer the front wheel 50 left and right by turning the handle 41 left and right. In addition, as the handle 41 is pushed back and forth and pulled back and forth, the handle tube 30 positioned below the hinge pin 13 can be reciprocated back and forth.

The kick scooter 1 according to the present invention includes a propulsion device including a driven sprocket 60, a drive sprocket 70, a transmission chain 80 and a crank mechanism 90.

The driven sprocket 60 is a sprocket which is disposed side by side to the rear wheel 20 to provide rotational force to the rear wheel 20. The driven sprocket 60 has the same axis of rotation as the rear wheels 20, and when the driven sprocket 60 rotates in the forward direction, the rear wheel 20 also rotates in the forward direction together with the rotational force thereof, and thus the kick scooter 1 of the present invention. Provides a driving force for driving forward.

The driving sprocket 70 is installed on the footrest 10 adjacent to the handle tube 30 and is a sprocket for providing rotational force to the driven sprocket 60. In the illustrated embodiment, the drive sprocket 70 is rotatably installed in a straight line with the driven sprocket 60 by the bracket 71 at a suitable position at the front lower side of the footrest 10.

The electric chain 80 is a chain which is caught between the driving sprocket 70 and the driven sprocket 60 to transmit the rotational force of the driving sprocket 70 to the driven sprocket 60.

In the illustrated embodiment, the guide sprocket 81 installed between the drive sprocket 70 and the driven sprocket 60 may be inadequate for hanging the electric chain 80 in a straight line between the drive sprocket 70 and the driven sprocket 60. In this case, it is not essential as the sprocket for guiding the electric chain 80 to rotate freely.

The crank mechanism 90 is a conventional crank mechanism provided between the handle tube 30 and the drive sprocket 70 to convert the front and rear reciprocating movement of the handle tube 30 to the rotation of the drive sprocket 70.

In the illustrated embodiment, the crank mechanism 90 includes a first crank pin 91 formed at a lower side of the handle tube 30, a second crank pin 92 protruding from the outer circumference of the driving sprocket 70, and a first crank. And a connecting rod 93 rotatably connecting between the pin 91 and the second crank pin 92.

According to the action of the crank mechanism 90, as shown in FIG. 4, when the handle tube 40 is reciprocated back and forth by holding the handle 41 and moving back and forth, the crank mechanism The driving sprocket 70 rotates by the operation of the 90, and the rotational force of the driving sprocket 70 rotates the driven sprocket 60 through the electric chain 80 and eventually rotates the rear wheel 20 forward. According to the kick scooter 1 will be given a driving force to drive forward.

The kick scooter 1 of the present invention is characterized by being able to obtain a propulsion force by reciprocating the handle 41 back and forth by hand, but can also selectively obtain the propulsion force by kicking the road surface like a conventional kick scooter.

In using the kick scooter 1 of the present invention, it is not necessary to use the propulsion device when driving downhill naturally without applying propulsion force or when receiving a driving force by kicking the road, but it is not excluded, If the sprocket 60 and the rear wheel 20 are completely interlocked, the rotational force of the rear wheel 20 by driving is reversely driven driven sprocket 60, the electric chain 80, the drive sprocket 70 and the crank mechanism 90 It is transmitted to the reciprocating movement of the handle shaft 40 back and forth to eventually reciprocate the handle 41 back and forth.

The front and rear reciprocation of the handle by the reverse transmission of the rotational force helps the user's upper body movement, but depending on the user may not require the reverse transmission of the rotational force.

In the above situation, the reverse transmission of the rotational force can be prevented from occurring by applying the ratchet sprocket as the driven sprocket 60. As is widely known, the ratchet sprocket (ratchet wheel) is a rotary structure that transmits rotational force in only one direction and does not transmit rotational force in the opposite direction, and is widely used in the rear wheel sprocket of a bicycle. The ratchet sprocket to be applied may apply such a conventional ratchet sprocket to the present invention.

When the ratchet sprocket is applied as the driven sprocket 60 to the present invention, the forward direction rotational force of the driven sprocket 60 through the forward and backward movement of the handle tube 30 is transmitted to the rear wheel 20, but the forward direction of the rear wheel 20 is applied. The rotational force is not transmitted to the driven sprocket 60.

In using the kick scooter 1 according to the present invention, there is a case in which the propulsion device is not used and it is desired to be used as in the conventional kick scooter, and for this purpose, the connecting rod 93 of the crank mechanism 90 is used. Removably assembled from the first crank pin (91) and the second crank pin (92), connecting the connecting rod 93 may be used as the propulsion device, if necessary, separated to not use the propulsion device It may be.

Kick scooter (1) according to the present invention, because the handle tube 30 is installed on the footrest 10, that is, the bracket 11 to be rotated in the front and rear direction, the handle tube 30 when not using the propulsion device. It may be desirable to fix without rotating, for this purpose, the bracket 11 may be provided with a locking mechanism 100 for selectively blocking the forward and backward rotation of the handle tube (30).

In the illustrated embodiment, the bracket 11 is provided with a U-shaped holder 101 rotatably up and down.

If you want to block the forward and backward rotation of the handle tube 30 in this structure, when the fixing bolt 102 is fastened in a state that the handle tube 30 is entered into the fixing base 101 by rotating the fixing base 101 upwards. The handle tube 30 is fixed to the bracket 11 and does not rotate.

On the contrary, in the case of allowing the forward and backward rotation of the handle tube 30, loosen the fixing bolt 102 and rotate the fixing base 101 to move the fixing base 101 to the stopper 103 formed on the bracket 11. This is fixed.

According to the kick scooter 1 according to the present invention described above, the driving force of the kick scooter can be provided by reciprocating the handle 41 back and forth, so that the driving force is obtained by reciprocating the handle 41 back and forth. You can choose to get your driving force by kicking the road, so you can do upper body exercise as well as lower body exercise. In addition, it may be used like a conventional kick scooter through the removal of the connecting rod 93 and / or the fastening of the locking mechanism 100.

1: Kick Scooter 10: Scaffold of the Invention
11: Bracket 12: Mounting groove
13: hinge pin 20: rear wheel
30: handle tube 40: handle shaft
41: steering wheel 50: front wheel
60: driven sprocket 70: driven sprocket
71: bracket 80: electric chain
81: guide sprocket 90: crank mechanism
91: first crank pin 92: second crank pin
93: connecting rod 100: locking mechanism
101: fixing table 102: fixing bolt
103: stopper

Claims

A footrest 10 elongated to put a foot on;
A rear wheel 20 rotatably mounted to the rear of the footrest 10;
A handle tube 30 rotatably installed in the front-rear direction on the bracket 11 extending in front of the scaffold 10;
A handle shaft 40 inserted into the handle tube 30 so as to be steered left and right and having a handle 41 formed at an upper end thereof;
A front wheel 50 rotatably mounted at a lower end of the handle shaft 40;
A driven sprocket 60 which is addressed to the rear wheel 20 to apply a rotational force to the rear wheel 20;
A driving sprocket 70 installed on the scaffold 10 adjacent to the handle tube 30 to apply a rotational force to the driven sprocket 60;
A transmission chain 80 which is caught between the driving sprocket 70 and the driven sprocket 60 to transmit the rotational force of the driving sprocket 70 to the driven sprocket 60;
A crank mechanism (90) installed between the handle tube (30) and the drive sprocket (70) for converting the front and rear reciprocating movement of the handle tube (30) into a rotational movement of the drive sprocket (70); And
A locking mechanism (100) installed on the bracket (11) to selectively block the forward and backward rotation of the handle tube (30); It includes;
Holding the handle 41 and moving the handle tube 30 back and forth, the drive sprocket 70 is rotated by the crank mechanism 90, the rotation of the drive sprocket 70 is the transmission chain ( 80) and the driven sprocket 60, characterized in that transmitted to the rotation of the rear wheel 20 to generate a propulsion force, kick scooter.

The method of claim 1,
The driven sprocket 60 transmits the forward rotational force of the driven sprocket 60 to the rear wheel 20 through the forward and backward reciprocation of the handle tube 30, but the forward rotational force of the rear wheel 20 is Kick scooter, characterized in that the ratchet sprocket is not transmitted to the driven sprocket (60).

The method according to claim 1 or 2,
The crank mechanism 90 includes a first crank pin 91 formed on the handle tube 30, a second crank pin 92 formed on an outer circumference of the driving sprocket 70, and the first crank pin 91. And a connecting rod (93) rotatably connecting between the second crank pin (92);
The connecting rod (93) is a kick scooter, characterized in that detachably assembled from the first crank pin (91) and the second crank pin (92).

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