KR20020074782A - Scooter - Google Patents

Abstract

PURPOSE: A scooter is provided to offer safety and convenience to a user by installing three wheels and placing a pedal for a rear wheel on the side of a board. CONSTITUTION: A front wheel(112) is installed in front of a board(100). A pair of rear wheels(114) are installed in the rear portion via a wheel shaft. A multi-stage handle shaft(130) is connected to the front wheel. The front wheel is rotated leftward and rightward by the rotation of a handle(132). A folding unit to fold and unfold the handle shaft from the board is installed between the handle shaft and the board. A drive unit for driving the rear wheels via a pedal(118) is installed between the rear wheels and the board. Even a beginner safely rides a scooter without falling down.

Description

Scooter {SCOOTER}

Technical Field

The present invention relates to a scooter, and more particularly, to a scooter configured to be able to drive forward while one foot is placed on a board board and kicks or pedals with the other foot.

Background

In general, a scooter is a device that allows a user, including a child, to move forward by kicking on one foot.

These scooters are also called kickboards, where wheels are mounted on the bottom of the board and the handles extend vertically so that the user can drive forward with one foot on the board and the other kicking the ground while holding the handle. It is configured to.

The scooter is mainly composed of two-wheeled scooters, one wheel is installed at the front and the rear of the board board, respectively.

However, the two-wheeled scooter as described above has a risk of being injured due to frequent accidents when riding and falling because it is not easy to hold the center while driving, and also includes a separate driving device and a braking device. There was a problem inconvenient to use.

In order to improve the shortcomings of the two-wheeled scooter, the Republic of Korea Patent No. 0163268 (hereinafter referred to as the 'patent invention') 'mechanical three-wheel scooter' is interposed, the patent invention consists of two rear wheels driving stability The drive device and the brake device for driving the rear wheel are better than the two-wheeled scooter.

However, the above-described patent invention has a problem that the driving device is installed at the rear, so that the operation by stepping on the pedal is quite inconvenient. That is, since the pedal is installed at the rear of the user, the position of the pedal must be checked by turning back, and even when the pedal is operated, the upper body of the user is leaned toward the front.

In addition, the patent invention is not only a handle connected to the board plate can be folded, but also because the drive device is made of a structure completely connected to the board plate is a large volume and heavy, there is also a problem that there is a significant inconvenience in carrying or storing the scooter.

The present invention has been made to solve the above problems, it is configured in a three-wheeled manner and the rear wheel to provide a scooter that is configured to be positioned on the side of the board plate to improve the safety and convenience of the user There is a purpose.

In addition, the present invention is configured to be able to fold the handle shaft in the direction of the board plate or to extend from the board plate at the same time can be configured to separate the drive means, such as pedals assembled on the main footing according to the needs of the user to reduce the overall volume during storage and movement Another object is to provide a scooter that can be easily converted to a general scooter without a pedal driving part.

In addition, the present invention is provided with a plurality of gears between the drive sprocket and the driven sprocket is configured to increase the number of revolutions of the wheel while reducing the number of operation of the pedal to reduce the fatigue of the user, it can also facilitate long-distance movement Another purpose is to provide a scooter.

The scooter of the present invention for realizing the above object is a board plate, a handle shaft connected to the front of the board plate and mounted on the upper handle, a front wheel installed at the lower end of the handle shaft, and a wheel shaft provided at the rear of the board plate. And a pair of rear wheels installed at both ends of the wheel axle, a pedal installed at a lateral position of the board plate to generate a driving force while rotating when a user's force is applied, and installed between the pedal and the board plate to be applied to the pedal. It is configured to include a return means for returning the pedal when the user's force is removed, and a driving means for transmitting a rotational force so as to be connected to the wheel shaft from the pedal to drive the rear wheel.

The board plate and the handle shaft connection portion are provided with folding means for keeping the handle shaft folded and unfolded at the same time as the handle shaft can be folded or unfolded from the board plate.

Here, the folding means is attached to the lower end of the handle shaft and hinged to the board plate via a first bracket, one end is rotatably supported via a second bracket and the other end is provided with a lever It is composed of a blocking base which is fitted to the first bracket to support the support member, and a fixing member rotatably installed on the blocking pedestal and provided with an eccentric portion on the surface to secure the support member to be pressed.

The handle shaft is formed in multiple stages in the telescope type is configured to loosen the fixing lever to the fixed portion and to adjust the height according to the fastening.

The return means is composed of an elastic means provided between the pedal and the board, and a stopper means for allowing the pedal to rotate within a predetermined range.

The driving means is rotatably installed on the board plate and rotates in response to the operation of the pedal, a driven sprocket installed on the wheel shaft and receiving a rotational force from the drive sprocket, and between the drive sprocket and the driven sprocket It is provided with a power transmission means for transmitting a rotational force, and a one-way clutch means installed in any one of the drive sprocket, driven sprocket, the power transmission means to transmit the rotational force in only one direction.

Here, the power transmission means is composed of a chain connected between the drive sprocket and the driven sprocket.

In addition, the power transmission means is supported on the board plate includes at least one or more speed increasing means to increase the rotational force of the drive sprocket to be transmitted to the driven sprocket, the speed increasing means is a driven gear with a small gear size to increase the gear ratio; A drive gear having a large gear size may be provided on the same shaft and connected to the drive sprocket and the driven sprocket in a chain.

The board plate is composed of a main footrest connected to the handle shaft and the wheel shaft, respectively, on the front and the rear, and a protective housing detachably installed on the side of the main footrest and provided with the pedal and the driving means. Accordingly, the protective housing can be detached from or coupled to the main footrest.

The wheel shaft is provided with a braking means for braking the rear wheel.

1 is a perspective view of a scooter in one embodiment according to the present invention;

2 is a plan view showing a scooter of one embodiment according to the present invention;

3 is a detailed view showing a pedal drive of an embodiment according to the present invention;

Figure 4 is a handle shaft height adjustment operation state of one embodiment according to the present invention,

Figure 5 is a detailed view of the handle shaft connecting portion of one embodiment according to the present invention,

6 is an operating state in which the handle shaft is folded in an embodiment according to the present invention,

Figure 7 is a state of use of the scooter in one embodiment according to the present invention,

8 is a perspective view of a scooter of another embodiment according to the present invention;

9 is a partial cutaway perspective view of a scooter of another embodiment according to the present invention;

10 is a plan view showing a scooter of another embodiment according to the present invention;

11 is a perspective view showing a bonded state of the board in another embodiment according to the present invention,

12 is a cross-sectional view taken along the line A-A of FIG. 11;

Figure 13 is a perspective view of a modified state of the scooter of another embodiment according to the present invention used.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 7 is a view showing a scooter of an embodiment according to the present invention, Figure 1 is an overall perspective view of the scooter, Figure 2 is a plan view of the scooter.

1 and 2 in the scooter according to the present invention, the front wheel 12 is installed in front of the board plate 10, a pair of rear wheels 14 via the wheel shaft 16 in the rear. ) Is installed.

The front wheel 12 is connected to the multi-stage handle shaft 30 is configured to be rotated left / right by rotating the handle 32, between the handle shaft 30 and the board plate 10 handle shaft Folding means is provided to fold or unfold 30 from board board 10.

In addition, a driving means is provided between the rear wheel 14 and the board plate 10 so that the rear wheel 14 can be driven by stepping on the pedal 18.

Hereinafter, the driving means and the folding means will be described in detail.

Figure 3 is a detailed view showing the pedal drive of the scooter of one embodiment according to the present invention.

1 to 3, the driving means is installed on the wheel shaft 16 integrally with the driven sprocket 20 and the board plate 10, and is connected to the driven sprocket 20 at a predetermined distance from the chain. A drive sprocket 22 interlocked with the stopper 22a and having a stopper 22a; a support shaft 26 connecting the pedal 18 and the drive sprocket 22; and one end of the drive sprocket 22; It is fixed to 22 and the other end is composed of an elastic spring 28 fixed to the board plate (10).

A one-way clutch 21 is provided between the driven sprocket 20 and the wheel shaft 16, and the one-way clutch 21 is a rear wheel when driving the pedal 18. 14 serves to transmit the rotational force to the wheel shaft 16 only in the forward direction, and does not transmit the rotational force to the wheel shaft 16 in the reverse direction.

The drive sprocket 22 is supported on the support shaft 26 to form the same line as the driven sprocket 20, and is configured to transmit rotational force to the driven sprocket 20 through the chain 24. Here, the drive sprocket 22 is installed to rotate integrally with the support shaft 26.

The support shaft 26 is supported on the board plate 10 side via the support bearing 26a as shown in FIG. 3, and one end of the support shaft 26 is coupled to the pedal arm 18a connected to the pedal 18 to thereby pedal 18. ), The drive sprocket 22 can be rotated.

The elastic spring 28 is fitted to the drive sprocket 22 so that one end thereof is caught by the stopper 22a while being mounted around the support shaft 26, and the other end is fixed to the board plate 10. It serves to limit the rotational operating range of the pedal 18.

That is, the elastic spring 28 is compressed while receiving a torsion when the pedal 18 is bright, but when rotated by a predetermined angle, the elastic spring 28 is supported by the support shaft 26 and is no longer compressed. The elastic spring 28 compressed in this way returns the pedal 18 to its original position by restoring force when the pedal 18 is released. At this time, when the pedal 18 returns to its original position, the stopper 22a of the drive sprocket 22 is caught by the board plate 10 and no longer rotates in the reverse direction.

Accordingly, when the pedal 18 is pressed, the drive sprocket 22 rotates, and at the same time, the driven sprocket 20 connected to the chain 24 rotates to move in the direction in which the rear wheel 14 moves forward.

On the contrary, when the pedal 18 is released, the pedal 18 is returned to the initial position by the elastic spring 28 and the stopper 22a.

As a result, the driving means according to the present invention is configured such that the driving force is transmitted to the rear wheel 16 so that the scooter can move forward by continuing a series of repetitive tasks in which the user steps on and releases the pedal 18.

Figure 4 is a handle shaft height adjustment operating state of the scooter of one embodiment according to the present invention.

1 and 4, the handle shaft 30 is formed in a multi-stage telescope, the handle 32 is installed on the top, the front wheel 12 is installed on the bottom. The handle shaft 30 has a fixing portion 30a formed at a connection portion, and the fixing lever 30b is fitted to the fixing portion 30a.

In particular, when adjusting the height of the handle shaft 30, loosen the fixing lever 30b to the fixing portion 30a of the handle shaft 30, move the handle 32 up and down to adjust the desired height and then again When the fixing lever 30b is tightened, the height of the handle shaft 30 is not changed.

Figure 5 is a detailed view of the handle shaft connecting portion of the scooter of the embodiment according to the present invention, Figure 6 is a diagram showing the operating state of the handle shaft is folded.

1 and 5, the folding means is attached to the lower end of the handle shaft 30 and the support member 34 hinged to the board plate 10 via a first bracket 34a, and one side The support base is rotatably supported by the end of the second bracket 34b, and the lever 36a is installed at the other end, and is fitted to the first bracket 34a to support the support member 34. And, it is rotatably installed in the blocking base 36 and is provided with an eccentric portion 38a on one side is composed of a fixing member 38 for fixing the support member 34 to be compressed.

The support member 34 is a member that connects the handle shaft 30 to the board plate 10. The support member 34 is hinged through the first bracket 34a so that the handle shaft 30 is rotated based on a single point. It is configured to be folded toward 10).

The blocking stand 36 is rotatably installed with one end hinged to the second bracket 34b, and the lever 36a is mounted at the other end to be fixed to the first bracket 34a. The fixed state is configured to be released.

The fixing member 38 is fitted to the shaft of the blocking stand 36 is configured to compress the support member 34. That is, the fixing member 38 has an eccentric portion 38a protruding on one side thereof, and a handle 38b formed on the opposite side thereof, and when the handle 38b is pulled, the eccentric portion 38a compresses the support member 34. Configured to do so.

Therefore, in order to fix the handle shaft 30 in a vertical position as shown in FIG. 1, the blocking support 36 may support the rear of the support member 34 in a state where the handle shaft 30 is upright. It is fixed to the groove of the first bracket (34a) so that it can be.

On the contrary, when the handle shaft 30 is folded, as shown in FIG. 6, the lever 36a is released and the blocking stand 36 is lifted based on one point of the second bracket 34b and the handle shaft 30 is lifted. This can be done by sliding it toward the board plate 10.

Meanwhile, as shown in FIGS. 1 and 2, the wheel brake 16 of the rear wheel 14 is provided with a band brake 40 to operate the brake lever 32a installed on the handle 32. ) Can be stopped.

In addition, the front wheel 12 and the rear wheel 14 are respectively provided with drip trays 12a and 14a, respectively, between the driven sprocket 20 and the driving sprocket 22 to cover the chain 24 to protect. Safety cover 42 is installed so that.

The driving process and the folding process of the scooter according to the embodiment of the present invention as described above will be described with reference to FIGS. 3 to 7 as follows.

Figure 7 is a state of use of the scooter in one embodiment according to the present invention.

First, the driving process of the scooter, when the user presses the pedal 18, the drive sprocket 22 is rotated while compressing the elastic spring 28, at this time to the chain 24 to the drive sprocket 22 The driven driven sprocket 20 is also rotated at the same time to transfer the driving force to the wheel shaft 16 and the rear wheel 14 to move in the direction in which the scooter advances.

Then, when the user does not press the pedal 18, the pedal 18 is rotated in the reverse direction by the compressed elastic spring 28 to return to the original position, at this time, the stopper 22a of the drive sprocket 22 as shown in FIG. ) Is caught by the board plate 10 to stop at the original position.

Next, the folding process of the handle shaft 30 will be described. After pressing the eccentric portion 38a contacted with the support member 34 by lowering the handle 38b of the fixing member 38 as shown in FIG. After releasing the lever 36a of the blocking stand 36 and lifting the blocking stand 36 based on the hinge point of the second bracket 34b, the handle shaft 30 is pushed toward the board plate 10 to be folded.

8 to 13 is a view showing a scooter of another embodiment according to the present invention, Figure 8 is an overall perspective view of the scooter.

Scooter of another embodiment according to the present invention is a board board having a predetermined width so that the user can ride, the handle 132 and the handle shaft 130 is connected to the front of the board board 100 to enable steering operation And a front wheel 112 and a rear wheel 114 connected to the rear of the handle shaft 130 and the board plate 100, respectively.

Here, the handle shaft 130 is connected to the folding means 135 so that the user can fold the handle shaft 130 as needed and fold it on the board plate 100.

In particular, the protective housing 105 is erected vertically on the side surface of the board plate 100, in the protective housing 105 to drive the rear wheel 114 by increasing the rotation speed in accordance with the operation of the pedal 118 of the user. The speed increasing means is provided with a plurality of gears connected in series.

In addition, the rear wheel 114 is made of a pair of two wheels, is supported through a rear bracket 120 fixed to the board plate (100).

One side of the rear wheel 114 as described above is provided with a brake drum 140 for forming a braking force according to the operation of the brake lever 133 mounted on the handle 132.

Referring to the main part of the scooter according to another embodiment of the present invention as follows.

9 is a partially cutaway perspective view of a scooter according to another embodiment of the present invention, and FIG. 10 is a plan view of the scooter.

First, the speed increasing means 150 will be described in detail. As shown in FIGS. 9 and 10, the driving sprocket 151 is mounted on the protection housing 105 to rotate according to the operation of the pedal 118. In the rear wheel 114 side, the driven sprocket 157 is mounted to transmit the rotational force to the rear wheel 114 while rotating by the driving force transmitted from the driving sprocket 151.

Between the drive sprocket 151 and the driven sprocket 157 as described above, two speed increasing gears 153 and 155 are continuously installed to increase the number of revolutions transmitted to the rear wheel 114. In addition, the driving sprocket 151, the first speed gear 153, the second speed gear 155, and the driven sprocket 157 are connected to each other by chains 152, 154, and 156 to transmit rotational force. .

Here, the first speed increasing gear 153 and the second speed increasing gear 155 may be driven gears 153a and 155a having a small gear dimension and a driving gear 153b having a large gear dimension such that the gear ratio becomes large. 155b) is integrally formed on the same axis.

Accordingly, the driving sprocket 151 is connected to the driven gear 153a of the first speed increasing gear 153 by a chain 152, and the driving gear 153b of the first speed increasing gear 153 is connected to the second gear. The driven gear 155a of the speed increasing gear 155 is connected to the chain 154, and the driving gear 155b of the second speed increasing gear 155 is connected to the driven sprocket 157 by the chain 156 to rotate the rotational force. Will be delivered.

Such speed increasing gears 153 and 155 convert the operating force of the pedal 118 of the user to a greater number of revolutions and transmit the same to the rear wheel 114, thereby reducing the number of repeated operations of the pedal 118 while increasing the driving distance. It serves to increase the user's driving convenience.

On the other hand, the drive gear 153, 155 transmits a rotational force to the rear wheel 114 only in the direction in which the rear wheel 114 advances when driving the pedal 118, one-way so as not to transmit the rotational force in the reverse direction One-way clutch 160 is provided.

That is, the one-way clutch 160 is installed on either one of the first speed increasing gear 153 or the second speed increasing gear 155, and the installation position is a connection portion between the driven gear 153a and the driving gear 153b. Is provided so that the driving force can be transmitted only in the direction in which the scooter advances.

Next, the rear wheels 114 are interconnected to the wheel shaft 115 in a state where two wheels are arranged side by side at a predetermined interval, the wheel shaft 115 is connected to both sides of the rear bracket 120 It is coupled to the outside of the support shaft 121 to rotate.

In addition, the driven sprocket 157 and the brake drum 140 are integrally provided on the wheel shaft 115 at both sides of the rear wheel 114 to receive the driving force of the pedal 118 or to perform a braking operation. It is configured to be.

Here, the brake drum 140 is a band brake type that is commonly used, and a brake band (not shown) connected to the brake lever 133 of the handle 132 and the cable 145 is provided around the brake drum 140. Therefore, when the user pulls the brake lever 133, the brake band restricts the rotation of the brake drum 140, so that the brake operation of the scooter is performed.

11 is a perspective view illustrating a bonded state of a board according to another embodiment of the present invention, and FIG. 12 is a cross-sectional view taken along the line A-A of FIG.

The board 100 is composed of a main footrest 101, an auxiliary footrest 103, a protective housing 105 made of metal such as aluminum material is assembled to each other.

That is, as shown in FIG. 12, the board plate 100 includes protrusions and grooves formed with the auxiliary foot plate 103 and the protective housing 105 extending in the longitudinal direction of the board plate 100 with respect to the main foot plate 101. The combined parts 107 are assembled to each other.

Here, the auxiliary scaffold 103 and the protective housing 105 are respectively secured to the side and bottom of the main scaffold 101 to ensure a strong mutual coupling force.

In addition, the board plate 100 as described above are all formed in a hollow so as to reduce the weight, and the bracket 120 for supporting the rear wheel 114 can be fixed at the same time to reinforce the rigidity inside the main scaffold 101. Two partitions 101a are formed to be.

In addition, a brake cable 145 connecting the brake lever 133 and the brake drum 140 passes through the auxiliary scaffold 103.

13 is a perspective view of a modified scooter of another embodiment according to the present invention.

Board board 100 according to the present invention configured as described above in the state remaining only the main footrest 101 by separating the protective housing 105 and the auxiliary footrest 103 as required by the user as shown in FIG. It can be used without the pedal 118 and the driving means like a normal scooter.

That is, since the handle bracket 130 and the rear bracket 120 of the rear wheel 114 are fixed only to the main scaffold 101, the board plate 100 may be provided with the auxiliary scaffold 103 and the protective housing from the main scaffold 101. Even if the 105 is removed, it is possible to use only the basic structure as shown in FIG. 13.

Scooter according to the present invention configured and operated as described above is made of a three-wheeled system having two wheels at the rear, so even beginners can safely ride without falling, especially the pedal is located on the side of the board to drive the rear wheels Because it is configured so that the user can easily operate the pedal in a more comfortable state.

In addition, the scooter according to the present invention is configured to be able to fold the handle shaft in the direction of the board or extend from the board board, so that the overall volume can be reduced when the scooter is not used, there is an advantage that the movement and storage is easy.

In addition, the scooter of another embodiment according to the present invention is provided with a plurality of gears between the drive sprocket and the driven sprocket is configured to increase the number of rotation of the wheel while reducing the number of operation of the pedal fatigue of the user It has the advantage of reducing the long distance travel is also easy.

In addition, the scooter of another embodiment according to the present invention described above is configured to separate the protective housing and the auxiliary footrest assembled to the main footrest according to the user's need to easily switch to a general scooter without a pedal drive portion There are also benefits to use.

Claims (10)

A board plate, a handle shaft connected to the front of the board plate and equipped with a handle at the top, a front wheel installed at the lower end of the handle shaft, a wheel shaft provided at the rear of the board plate, and a pair of rear wheels provided at both ends of the wheel shaft; A pedal which is installed at a side position of the board and rotates when a user's force is applied, and a pedal which is installed between the pedal and the board and removes the user's force applied to the pedal to return the pedal to its original position. And a driving means connected to the wheel shaft from the pedal and driving means for transmitting a rotational force to drive the rear wheel. The method of claim 1, Scooter, characterized in that the connection portion between the board plate and the handle shaft is provided with a folding means that can be folded or unfolded the handle shaft from the board plate and at the same time maintain the handle shaft folded and unfolded state. The method of claim 2, The folding means is attached to the lower end of the handle shaft and hinged to the board plate via a first bracket, one end is rotatably supported via a second bracket and the other end is provided with a lever is installed Scooter characterized in that it is composed of a blocking base which is fitted to the bracket to support the support member, and a fixing member which is rotatably installed on the blocking pedestal and is provided with an eccentric portion on the surface to secure the support member to be pressed. The method of claim 1, The steering wheel shaft is formed in a multi-stage telescopic type scooter characterized in that the height can be adjusted according to the fastening and loosening the fixing lever to the fixed portion. The method of claim 1, And the return means comprises elastic means provided between the pedal and the board and a stopper means for allowing the pedal to rotate within a predetermined range. The method of claim 1, The driving means is rotatably installed on the board plate and rotates in response to the operation of the pedal, a driven sprocket installed on the wheel shaft and receiving a rotational force from the drive sprocket, and between the drive sprocket and the driven sprocket It is provided between the power transmission means for transmitting a rotational force, the drive sprocket, the driven sprocket provided between the drive sprocket, the driven sprocket, and any one of the drive sprocket, driven sprocket, power transmission means in one direction Scooter characterized in that consisting of one-way clutch means for transmitting only the rotational force. The method of claim 6, And the power transmission means is a chain connected between the drive sprocket and the driven sprocket. The method of claim 6, The power transmission means is supported on the board plate and includes at least one speed increasing means to increase the rotational force of the drive sprocket and transmit the driven sprocket to the driven sprocket; The speed increasing means is a scooter characterized in that the driven gear having a small gear dimension and the drive gear having a large gear dimension are provided on the same shaft so as to increase the gear ratio, and are connected to the drive sprocket and the driven sprocket by chains, respectively. The method of claim 1, The board plate is composed of a main footrest connected to the handle shaft and the wheel shaft, respectively, on the front and the rear, and a protective housing detachably installed on the side of the main footrest and provided with the pedal and the driving means. Scooter characterized in that it is configured to detach or couple the protective housing from the main footrest. The method of claim 1, The wheel shaft is a scooter, characterized in that provided with a braking means for braking the rear wheel.