KR200420320Y1 - Skateboard with caster - Google Patents

Abstract

The present invention relates to a skateboard having a caster, and more particularly, consisting of a board separated into a front, rear, middle and a connecting element having an elastic body connecting them, the front, the backboard is provided with a directional caster By providing a caster on the intermediate board, it relates to a skateboard having a caster that is easy to rotate in a small radius and the driver can obtain a driving force only by the torsional movement during driving, and the rotation is possible from the center.

That is, the present invention is a skateboard, the front plate and the rear plate is attached to the bottom of the directional caster inclined rotation axis; An auxiliary plate positioned between the front and rear plates and having a caster attached to a bottom surface thereof; And a torsion pipe connecting the front plate and the auxiliary plate, and the auxiliary plate and the rear plate, respectively, to provide a skateboard having a caster.

Skateboard, Directional, Castors, Drivers

Description

Skateboard with caster {Skateboard with caster}

1 is a perspective view of a conventional skateboard.

2 is a side view of a conventional caster.

3 is a bottom perspective view of a skateboard having a caster according to an embodiment of the present invention.

4A and 4B are a perspective view and a cross-sectional view of the directional caster of the skateboard having the caster of the present invention.

5 is a cross-sectional view showing the caster of the skateboard having a caster of the present invention.

6A and 6B are plan views illustrating a driving method of driving a skateboard having a caster of the present invention.

7A and 7B are plan views illustrating a method of rotating the skateboard provided with the caster of the present invention.

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

100: directional caster 100 ': caster

200: skateboard

210, 220, 230: front board, back board, middle board

212, 214: front and rear plate 232: auxiliary plate

240, 242: torsion pipe

The present invention relates to a skateboard having a caster, and more particularly, consisting of a board separated into a front, rear, middle and a connecting element having an elastic body connecting them, the front, the backboard is provided with a directional caster By providing a caster on the intermediate board, it relates to a skateboard having a caster that is easy to rotate in a small radius and the driver can obtain a driving force only by the torsional movement during driving, and the rotation is possible from the center.

The conventional skateboard 10 is composed of a long oval plate 11 and two wheel sets 12, 13 provided with two rollers on the bottom of the plate 11, as shown in FIG. In the conventional skateboard 10 having such a configuration, the driver can roll the ground with one foot while driving on a flat surface, and when the driver rotates the vehicle, the skateboard 10 is tilted left and right with respect to the direction of travel. Could.

Meanwhile, the conventional caster 20 includes a roller support 22 attached to the plate 11, a roller arm 24 extending downward from the roller support 22, and the roller. It is comprised by the roller 26 interposed in the arm 24 and rotating. The conventional caster 20 is mainly used as a front wheel of a cart because of the property that the rolling direction of the roller 26 changes even when a small force is applied.

By the way, in the above conventional skateboard, there is no way to maintain the driving force of the skateboard 10 without rolling the ground with the foot when driving, or even if this is a difficult method that can only be a driver with extremely high technology to be. In addition, even when the plate 11 is inclined to the side more than a certain amount during rotation while driving, the wheel set 12, 13 and the plate 11 are in contact, so that the plate 11 cannot be tilted much, so that the radius of rotation must be large. There was this.

The present invention has been made in order to solve the above problems, the purpose of which is to have a separate plate in the front, rear, middle, respectively, the front and rear plate is attached to the directional caster having a directional, rotatable to the middle plate It is to provide a skateboard having a caster that can be attached to the caster having a to give a driving force and rotational force.

In order to achieve the above object, the present invention, a skateboard, the front plate and the rear plate is attached to the bottom of the directional caster inclined rotation axis; An auxiliary plate positioned between the front and rear plates and having a caster attached to a bottom surface thereof; And a torsion pipe connecting the front plate and the auxiliary plate and the auxiliary plate and the rear plate, respectively, so that the rotation of the small radius is easy and the driver can obtain the driving force only by the torsional movement during driving, between the front and rear plates. It is preferable to be connected to the mutual twisting pipe via the auxiliary plate in the rotation is possible from the center.

In addition, the directional caster in the present invention, the base plate is provided with a pipe-shaped housing fixture installed inclined on the lower surface; A bearing housing coupled to an inner surface of a housing fixture installed at a lower surface of the base and having bearings mounted on upper and lower sides thereof in a hollow cylindrical shape; A roller arm inserted into a bearing mounted inside the bearing housing and having a steering shaft portion formed at an upper portion thereof and a roller arm interposed at a lower portion of the lower portion of the steering shaft portion in the form of a pair of triangle plates; It is preferable to mount a plurality of directional casters on the bottom surface of the directional casters because the roller arm is fixed to have a predetermined angle on the lower surface of the base to obtain a higher driving force only by the driver's twisting motion.

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Hereinafter, with reference to the accompanying drawings, a skateboard having a caster of the present invention will be described with reference to the embodiment as follows.

In the skateboard having a caster of a preferred embodiment of the present invention, as shown in FIG. 3, the two boards 210 and 220 and the middle board 230 intervening the front and back boards 210 and 220 are sequentially formed. It is composed of a pair of torsion pipes 240 and 242 which are positioned to be spaced apart from each other.

The front, rear, and middle boards 210, 220, and 230 are front and rear plates 212 and 214 and auxiliary plates 232, and directional casters attached to each bottom surface of the front and rear plates 212 and 214. 100 and a caster 100 'attached to the bottom surface of the auxiliary plate 232, and the front plate provided at the bottom of the front, rear, and middle boards 210, 220, and 230, that is, the front plate ( The torsion pipes 240 and 242 are fixedly coupled to the rear end of the bottom and the bottom end of the auxiliary plate 232, the bottom end of the rear plate 214 and the rear end of the auxiliary plate 232, respectively. It consists of a plurality of fastening elements 244 to be.

The torsion pipes 240 and 242 are composed of two pipes, front and back, and both ends of the leaf springs (not shown) are fixed to each other so that the torsion pipes 240 and 242 are twisted relative to the torsional motion. It is elastically deformed and serves to restore the torsion pipes 240 and 242 to their original state when the torsional force is extinguished. Since the torsion pipes 240 and 242 are provided, the restoring force of the leaf spring works even when the front, rear, and middle boards 210, 220, 230 are tilted left and right for directional rotation or propulsion of the skateboard 200 while driving. Thus, the driver can maintain the balance, thereby making the driving safe.

Here, the front and rear of the skateboard 200, the directional caster 100 and the caster 100 'attached to the bottom of the intermediate board (210, 220, 230) is the bottom of each board (210, 220, 230) At least three can be arranged in a row or two in an even number two in a row, and if the directional caster 100 is arranged in two rows, the radius of rotation is slightly increased and the driving force is lowered, while the safety is added as much.

As shown in FIGS. 4A and 4B, the directional caster 100 includes a plate-shaped base 110 and a pipe-shaped housing fixture 112 that is welded to the lower surface of the base 110 in an inclined manner. , A bearing housing 114 fixed to the inner circumferential surface of the inclined housing fixture 112 in the same axis, a bearing 116 interposed on and under the bearing housing 114, and the bearing 116. Steering shaft portion 118 coupled to the inner ring of the formed on the upper portion of the lower roller consists of a roller arm 120 is formed with a pair of fixed plates installed on both sides of the roller (124). In addition, the roller 124 interposed between the roller arm 120 and the lower part of the roller arm 120 is fixed with the bolt 130.

That is, the directional caster 100 has a through hole formed at each corner portion thereof so that the base 110 may be fixed by fastening a small screw to the front and rear plates 212 and 214 in a plate shape having a predetermined thickness. A through hole is formed in the center of the upper surface, and the normal line of the base 110 and the central axis of the housing fixture 112 form an acute angle θ.

Here, the housing fixture 112 is joined to the bottom surface of the base 110 by welding along a circumference of the pipe-shaped housing fixture 112 in contact with the inclined state having an acute angle θ on the bottom surface of the base 110. It is formed integrally.

The bearing housing 114 is fixed to the inner circumferential surface of the housing fixture 112 and has a stepped portion formed at an intermediate portion of the inner circumferential surface of which the hollow is hollow, and bearings 116 are mounted on the upper and lower portions based on the stepped portion, respectively.

The roller arm 120 has a steering shaft portion 118 mounted on the inner ring of the pair of bearings 116 mounted on the bearing housing 114 at an upper portion thereof, and has a roller 124 pivoted through a lower portion thereof. A pair of triangular plates to be fixed is attached.

A stop ring 122 is provided on an upper circumferential surface of the steering shaft 118 to prevent the steering shaft 118 from being separated during rotation in the inner ring of the bearing 116 into which the steering shaft 118 is inserted.

Therefore, the steering shaft portion 118 of the directional caster 100 installed on the bottom of the front and rear plates 212 and 214 is fastened in an inclined state by an angle of θ from the front and rear plates 212 and 214. The roller arm 120 rotates left and right as the center of the roller arm 120 is inclined when a vertical load is applied to the rear plates 212 and 214 before and after the directional caster 100 is installed. Therefore, since the angle between the center axis of the steering shaft portion 118 and the normal of the base 110 has an inclination of "θ", it may be greater than 0 ° but impart elevated propulsion to the skateboard 200 with less force. Can be.

Therefore, when load is applied to the right side of the front and rear plates 212 and 214 with respect to the driver, the roller arm 120 of the directional caster 100 is loaded in the opposite direction to which the load is applied in the direction perpendicular to the bearing 116. Rotating in the leftward direction, the load is applied to the left side of the front and rear plates 212, 214, the roller arm 120 of the directional caster 100 is opposite to the load is applied in the vertical direction by the bearing 116 Direction is to rotate in the right direction.

The caster 100 'is positioned in contact with the stator 102' attached to the bottom of the auxiliary plate 232 having an elliptical shape as shown in FIG. 5, and is in contact with the lower side of the stator 102 '. A plurality of balls B are interposed into the rotor 104 'which rotates by rolling contact by the balls B, and a roller 106' which is rotatably provided in the lower part of the rotor 104 '. 360 ° rotation is possible, and is manually rotated by the directional caster 100 according to the traveling direction.

Therefore, in order to impart a driving force to the skateboard having a caster of the present invention, as shown in Figure 6a, the driver is placed on the skateboard 200 and the center of the foot on the skateboard 200 as shown in Figure 6a If you hit the ground with one foot in the holding state, the driving force is generated on the skateboard 200 for the first time. Thus, when the skateboard 200 is in progress, the driver exerts a force on the toes of the forefoot on the front board 210. When 210 is inclined to the right of the direction of travel, the rear board 220 is tilted to the left of the direction of travel by applying a force to the heel portion of the rear board 220 on the directional caster 100 of the front board 210 The roller arm 120 turns to the left in the opposite direction and the roller 124 rolls to the right, and the roller arm 120 of the directional caster 100 of the rear board 220 is turned to the right in the opposite direction. A return roller and 124 is the skateboard being rolled toward the left side 200 is to turn to the right.

On the contrary, if the skateboard 200 is to be rotated to the left side, as shown in FIG. 6B, the driver applies force to the heel portion of the forefoot on the front board 210 and tilts to the left in the direction of travel. When the force is applied to the forefoot portion of the forefoot on the board 220, the roller arm 120 of the directional caster 100 of the front board 210 returns to the right side in the opposite direction and the roller 124 Is rolled toward the left side, the roller arm 120 of the directional caster 100 of the rear board 220 is turned to the left in the opposite direction and the roller 124 is rolled to the right to skateboard 200 Left turn).

Therefore, when the force is applied to the toe portion of the foot placed on the front board 210 and the heel portion of the foot placed on the back board 220 is rotated to the right and the skateboard 200 is placed on the front board 210. When the force is applied to the heel of the losing foot and the toe portion of the foot placed on the rear board 220 is rotated to the left, the skateboard 200 is rotated to the left, so the skateboard 200 is driven without repetitive driving force. Can be obtained.

Here, the caster 100 ′ attached to the intermediate board 230 rotates in the same direction according to the rotation direction of the directional caster 100.

In addition, in order to impart rotational force to the skateboard having the caster of the present invention, as shown in FIG. 7A, one foot is positioned on the skateboard 200 while the driver is wet with the skateboard 200. If you push the ground with one foot to hold the thrust is generated on the first skateboard 200, as described above, when the skateboard 200 is in progress, the front foot is stationary on the front board 210 and the rear foot in the middle of the back board 220 When the driver applies force to the forefoot portion of the forefoot on the front board 210 in the state moved to the board 230 and overall force on the foot placed on the middle board 230, the front board 210 is inclined to the right in the direction of travel. The roller 124 of the directional caster 100 attached to the front board 210 is rolled toward the right side so that the front board 210 is moved to the right from the caster 100 'attached to the middle board 230. rotation Rotate clockwise in place.

On the contrary, when the skateboard 200 is to be rotated in the counterclockwise direction, as shown in FIG. 7B, the driver's rear foot is stopped on the rear board 220 and the front foot is moved to the middle board 230. When the force is applied to the rear foot toe portion placed on the rear board 220 and the front foot positioned on the middle board 230 as a whole, the directional caster 100 is inclined to the right side of the traveling direction and attached to the rear board 220. The roller 124 is rolled toward the right as the wheel is turned to the left, and the rear board 220 is rotated to the right from the caster 100 'attached to the intermediate board 230, and rotates counterclockwise in place. .

Therefore, when the force is applied to the toe portion of the foot placed on the front board 210 and the overall force is applied to the back foot placed on the middle board 230, the skateboard 200 may lift the caster 100 ′ of the middle board 230. The skateboard 200 is rotated in a clockwise direction from the starting point, and when the force is applied to the toe portion of the back foot placed on the back board 220 and the front foot placed on the middle board 230 as a whole, the skateboard 200 is the middle board. The caster 100 ′ of 230 is rotated in a counterclockwise direction from the ground.

On the other hand, the directional caster 100 is attached to the front board 210 by applying a force to the entire foot to the middle board 230, the back foot is placed in a state rotated left and right according to the load applied to the toe portion and the heel portion of the forefoot Can be rotated clockwise or counterclockwise in place, and vice versa, the directional caster 100 attached to the rear board 220 is rotated from side to side in accordance with the load applied to the toe and heel of the rear foot The entire foot can be applied to the middle board 230 on which the forefoot is placed to rotate in place clockwise or counterclockwise. That is, the rotation is possible using the front foot placed on the front board 210 as well as the rotation using the back foot placed on the rear board 220.

Such a skateboard having a caster of the present invention is a skateboard that moves from side to side in the process of twisting the body by applying a load left and right alternately in the state of carrying weight by attaching a directional caster to the front, rear plate The driving force can be obtained, and the caster is accommodated in the auxiliary plate provided in the middle portion of the front and rear plates, and the rotor can be rotated in place at the same time.

Claims (3)

In the skateboard, A front plate 212 and a rear plate 214 to which a directional caster 100 having an inclined axis of rotation is attached to a bottom surface thereof; An auxiliary plate 232 positioned between the front and rear plates 212 and 214 and having a caster 100 'attached to a bottom surface thereof; And And a torsion pipe 240 and 242 connecting the front plate 212 and the auxiliary plate 232 and the auxiliary plate 232 and the rear plate 214, respectively. board. The method of claim 1, wherein the directional caster 100, A base 110 in which a pipe-shaped housing fixture 112 is installed to be inclined on the bottom surface of the plate; A bearing housing 114 coupled to an inner surface of a housing fixture 112 installed on a lower surface of the base 110 and having bearings 116 mounted on upper and lower sides thereof in a hollow cylindrical shape; Inserted into the bearing 116 mounted inside the bearing housing 114, the steering shaft portion 118 is formed on the upper portion of the roller shaft 124 in the shape of a pair of triangular plate on the lower surface of the steering shaft portion 118 Skateboard having a caster characterized in that the configuration having; The method of claim 1, wherein the caster 100 ', A stator 102 'attached to a bottom of the auxiliary plate 232; A rotor 104 'positioned in contact with a lower side of the stator 102' and rotating with a plurality of balls B interposed into the contact surface; And a roller (106 ') rotatably provided at a lower portion of the rotor (104').

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