KR20080062416A - Skateboard - Google Patents

Abstract

The present invention relates to a skateboard, by allowing the center of rotation of the scaffold to be located high on the longitudinal center axis of the scaffold, not only can be smoothly running smoothly in a stable posture, but also U-turn with a short radius of curvature The purpose is to make it possible.

The skateboard of the present invention includes a front footrest 100, a rear footrest 110 connected to the front footrest in a relative rotation, and two directional casters respectively installed on the bottom of the front footrest and the rear footrest ( 120). The front flange 101 and the rear flange 111 which are in close contact with each other on the end portions corresponding to each other of the front footrest and the rear footrest are protruded upward in order. Upper ends of the front flange and the rear flange are connected to the rotation shaft 130 so as to be relatively rotatable with each other, such that the rotation shaft 130, which is the rotation center of the scaffold, is higher than the longitudinal central axis C of the scaffold by a predetermined height. Is installed.

Description

Skateboard {SKATE-BOARD}

1 is a plan view showing an example of a conventional skateboard.

2 is a perspective view showing a skate board according to the first embodiment of the present invention.

3 is a plan view showing a skateboard according to the first embodiment of the present invention.

4 is a front view of FIG. 3.

5 is a sectional view showing main parts of a skateboard according to Embodiment 1 of the present invention.

6 is a perspective view showing a skate board according to a second embodiment of the present invention.

7 is a sectional view showing the principal parts of a skateboard according to a second embodiment of the present invention.

8 is a sectional view showing the principal parts of the skateboard according to the third embodiment of the present invention.

9 is a cross-sectional view taken along the line A-A of FIG. 8A.

10 is a sectional view showing the principal parts of the skateboard according to the fourth embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: front step, 101: front flange,

102: rotation limit groove, 110: rear foot,

111: rear flange, 120: directional caster,

130: axis of rotation, C: longitudinal central axis of the scaffold,

140: bearing, 150: rotation limit pin.

The present invention relates to a skateboard, and in particular, by allowing the center of rotation of the scaffold to be located high on the longitudinal center axis of the scaffolding, it is possible to run smoothly and effortlessly in a stable posture, and also with a short radius of curvature. It relates to a skateboard that can be U-turned.

In general, skateboards, as shown in Figure 1, put the wheels on the bottom of the plate-like footboard where the user can put both feet, put the two feet on the footrest, move one foot in a zigzag to gain momentum, or It is a leisure sports equipment that puts one foot on the board and the other foot kicks the ground to achieve propulsion.

However, these skateboards are limited in obtaining continuous and smooth mobility because they gain propulsion by the body motion or the inclined surface of the occupant.

In view of the drawbacks of these skateboards, a skateboard that can easily obtain the driving force and feel a sense of speed has been proposed.

An example of such a skateboard is proposed in Korean Patent No. 420911. This skateboard, as shown in Figure 1, the front footing, the rear footing, two directional casters respectively provided on the bottom of the front footing and the rear footing, and connecting the front footing and the rear footing It consists of a torsion pipe. The torsion pipe is connected by installing a leaf spring inside the two pipes respectively installed on the bottom surfaces of the front and rear scaffolds. On the other hand, Korean Patent Laid-Open No. 2006-128798 proposes to connect the front footrest and the back footrest of the skateboard with a torsion bar. In addition, it has been proposed to connect the front and rear scaffolding of the skateboard with a torsion bar to coincide with the longitudinal center axis thereof.

Such a skateboard, for example, by placing the left foot on the front footrest and the right foot on the rear footrest, rolling the foots to the left and right about the longitudinal center axis of the front footrest and the rear footrest, the torsion pipe by the relative torsional movement of the two pipes The plate spring embedded in the elastically deformed and restored to its original state, the direction change or driving force can be generated to drive the skateboard.

However, in the conventional skateboard as described above, since the center of rotation of the scaffold, that is, the central axis of the torsion pipe and the longitudinal central axis of the scaffold are very close to each other, the scaffold that rotates about the center axis of the torsion pipe The radius of rotation of the field is small. Because of this, it is necessary to roll the scaffold frequently to the left and right to obtain the propulsion force, so as the direction change is very short, the skateboard cannot run smoothly, and the speed can not be felt, for example, to make a U-turn. In this case, the radius of curvature becomes long and it becomes difficult to make a U-turn on a narrow road. This is particularly acute when the front and rear scaffolds of the skateboard are connected by torsion bars to coincide with their longitudinal central axes. In addition, since the elastic bodies such as the torsion pipe and the torsion bar are rapidly restored after deformation, there is a problem that it is difficult to center on the skateboard.

The present invention has been made in consideration of the above-described conventional problems, and by allowing the center of rotation of the scaffolds to be located high with respect to the longitudinal center axis of the scaffolds, it is possible to travel smoothly and effortlessly in a stable posture. An object of the present invention is to provide a skateboard capable of making a U-turn with a radius of curvature.

In order to achieve the above object, the present invention includes a front footrest, a rear footrest which is connected to the front footrest in a relative rotation, and two directional casters respectively provided on the bottom surface of the front footrest and the rear footrest. A skateboard comprising: a front flange and a rear flange which are in close contact with each other at ends corresponding to each other of the front footrest and the rear footrest are projected upwardly in turn; The upper ends of the front flange and the rear flange is characterized in that connected to the rotation axis to rotate relative to each other.

According to the present invention, the rotating shaft may be installed through two bearings respectively installed on the front flange and the rear flange.

In addition, one or both of the lower end of the front flange and the lower end of the rear flange is formed with an arc-shaped rotation limiting groove, the rotation limiting groove is inserted into the rotation limiting pin for engaging the front flange and the rear flange. Can be.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

2 to 4 show a skateboard according to Embodiment 1 of the present invention.

The skateboard of the present embodiment includes a front footrest 100, a rear footrest 110, and two directional casters 120 that are respectively installed on the bottom surfaces of the front footrest 100 and the rear footrest 110. .

The front scaffold 100 and the rear scaffold 110 are connected to each other in a predetermined angle range so as to be relatively rotatable.

That is, the front flange 101 and the rear flange 111 which are in close contact with each other at the ends corresponding to each other of the front scaffold 100 and the rear scaffold 110 are sequentially installed upward. The flanges 101 and 111 may be integrally formed with the scaffolds 100 and 110, and may be fixed by fastening means, for example.

The upper ends of the front flange 101 and the rear flange 111 are connected to the rotation shaft 130 so as to be relatively rotatable with each other, as shown in FIGS. 2 and 5.

Therefore, the rotation axis 130 which is the center of rotation of the front footrest 100 and the rear footrest 110 is far away from the longitudinal central axis C of the footrests 100 and 110 (see FIG. 4). Therefore, the radius of rotation of the scaffolds 100 and 110 is largely formed, and thus, the propulsion force of the skateboard can be easily obtained even if the scaffolds 100 and 110 are not frequently rolled, and the direction can be flexibly changed. If you make a U-turn, you can make a U-turn with a short radius of curvature. In addition, in the present invention, it is easy to hold the center on the skateboard by connecting the rotary shaft 130 to the left and right to roll the scaffolds 100 and 110 without connecting the scaffolds 100 and 110 with an elastic body.

6 and 7 illustrate skateboards according to Embodiment 2 of the present invention.

In the skateboard of the present embodiment, the rotation shaft 130 is installed through two bearings 140 installed on the front flange 101 and the rear flange 111, respectively, and the rest of the configuration is described above. It is the same as the structure of Example 1.

Therefore, in the case of the skateboard of the present embodiment, since the bearings 140 are rotated about the rotating shaft 130 when the scaffolds 100 and 110 rotate, the scaffolds 100 and 110 can smoothly rotate. In addition, the scaffolds 100 and 110 may be prevented from being worn by the rotation shaft 130.

8 and 9 illustrate a skateboard according to Embodiment 3 of the present invention.

The skateboard according to the present embodiment, in the skateboard according to the first embodiment described above, has an arc-shaped rotary limiting groove 102 on one or both of the lower end of the front flange 101 and the lower end of the rear flange 111. Is formed, the rotation restriction groove 102 is inserted into the rotation limit pin 150 to engage the front flange 101 and the rear flange 111, thereby limiting the rotation angle of the footrest (100, 110) It is made to promote safety. The rest of the configuration is the same as that of the first embodiment.

In the skateboard of the present embodiment, for example, as shown in FIG. 8, when the rotation limiting groove 102 is formed in both the front flange 101 and the rear flange 111, the rotation limit pin 150. Both ends of the) is inserted into the rotation limit grooves 102 of both sides, and thus the rotation limit grooves 102 are rotated while sliding to the rotation limit pin 150 when the scaffolds 100 and 110 rotate. The rotation angles of the scaffolds 100 and 110 may be limited by an angle at which the rotation restriction pin 150 is applied to the ends of the rotation restriction grooves 102, that is, the angle at which the rotation restriction groove 102 is formed. .

In addition, although not shown here, in the case where the rotation limiting groove 102 is formed in only one of the flanges 101 and 111, one end of the rotation limiting pin 150 may include the rotation limiting groove 102. The other end of the rotation restriction pin 150 is inserted into the other flange that is not formed and is inserted into the rotation restriction groove 102. Therefore, the rotation angles of the footrests 100 and 110 may be limited by the angle at which the rotation restriction groove 102 is formed.

In addition, Figure 10 shows a skateboard according to a fourth embodiment of the present invention, the skateboard of the present embodiment, in the skateboard of the second embodiment to which the bearing 140 is applied, the rotation mentioned in the third embodiment Restriction groove 102 and the rotation restriction pin 150 is made to be applied as it is. The rest of the configuration is the same as that of the second embodiment.

According to the skateboard according to the present invention configured as described above, the rotary shaft 130 which is the center of rotation of the front footrest 100 and the rear footrest 110 is the longitudinal central axis of the footrest (100, 110) ( By setting the distance farther than C), the radius of rotation of the scaffolds 100 and 110 is remarkably larger than that of the conventional torsion pipe or torsion bar, so that the scaffolds 100 and 110 are not frequently rolled. You can easily get the thrust of the skateboard, so you can drive the skateboard without much effort.

In addition, the skateboard can be run while flexibly turning, so that you can enjoy the skateboard in a cool way.

In addition, even when making a U-turn, a U-turn can be made with a short radius of curvature, so that the U-turn can be easily made even at a narrow distance.

Also, by not applying an elastic body such as a torsion pipe or a torsion bar, it is easy to be centered on the skateboard and a beginner can quickly get used to riding a skateboard.

Claims (3)

Skates comprising a front footrest 100, a rear footrest 110 connected to the front footstool so as to be relatively rotatable, and two directional casters 120 respectively installed on the bottom of the front footrest and the rear footrest. On the board: Front flanges 101 and rear flanges 111, which are in close contact with each other at end portions corresponding to each other of the front footrest and the rear footrest, are sequentially installed upwardly; Upper ends of the front flange and the rear flange are connected to the rotation shaft 130 so as to be relatively rotatable with each other, such that the rotation shaft 130, which is the rotation center of the scaffold, is higher than the longitudinal central axis C of the scaffold by a predetermined height. The skateboard characterized by being installed. The method of claim 1, Skateboard, characterized in that the rotating shaft 130 is installed via the two bearings 140 which are respectively installed on the front flange 101 and the rear flange (111). The method according to claim 1 or 2, One or both of the lower end of the front flange 101 and the lower end of the rear flange 111 is formed with an arc-shaped rotational restriction groove 102, the rotational restriction groove is engaged with the front footing and the rear footing. Skateboard, characterized in that the rotation limit pin 150 is inserted.

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