KR100859962B1 - Skateboard with directional caster including plural wheels - Google Patents

Abstract

The present invention is a board (board) having a predetermined area so that the foot of the occupant to ride on the upper surface (board); On the bottom of the board, a wheel capable of rolling movement on the ground is fixedly mounted or steering is mounted so that the driver can change direction through a truck, caster, or directional caster so that the passenger can ride. The present invention relates to a skateboard, and more particularly, to a double-wheel directional caster on which wheels arranged in parallel in a traveling direction are mounted.

Skateboard

Description

Skateboard with double-wheel directional caster {SKATEBOARD WITH DIRECTIONAL CASTER INCLUDING PLURAL WHEELS}

Conventional Skateboards:

1 exploded perspective view

Fig. 2 (A) Side view of the directional caster; (B) an operation view of the directional caster viewed from the front; (C) Motion view showing the direction of the directional caster in plan view

Hereinafter, the skateboard of the present invention:

3 is an exploded perspective view of a double-wheel directional caster

Figure 4 (A) frontal exploded view of a double-wheel directional caster; (B) an assembly drawing of (a) the drawing; (C) Front view of the double-wheel directional caster to show an example of the lubrication adjustment washer 231

5 is an exploded perspective view showing switching to a single-wheel directional caster;

Figure 6 illustrates a board in divided form, (a) a perspective view of a three-wheeled form; (B) Four-wheel perspective

7 is a diagram illustrating a board in the form of a split and connected to the connecting element, (a) a perspective view of a three-wheeled form; (B) Four-wheel perspective

Fig. 8 illustrates a board in which the entire board is bout, and (a) a side view; (B) Perspective view of another embodiment

The present invention,

In Fig. 1, a board 10 (board) having a predetermined area so that an occupant's foot is boarded on an upper surface thereof; On the bottom surface of the board 10, fixedly mounted wheel 22 (Wheel) capable of rolling movement on the ground or steering mounted to change direction through a truck, caster, directional caster 20 The present invention relates to a skateboard that allows a passenger to ride.

In relation to the above, a conventional skateboard is known in Korean Patent No. 10-0394848. Looking at one embodiment, the front and rear boards 10 having the directional casters 20 on which the wheels 10 are mounted. Are separated and arranged in pairs; The torsion bar 31, which can be elastically restored after torsion wrenching, is inserted into the connection element 30, and is configured to bind to the respective binding portions 32 of the front and rear boards 10.

Particularly, in the case of the directional caster 20, the wheel frame 21 is pivotally coupled to the wedge angle A of the wedge angle on the bottom surface of the board in FIG. In this case, as shown in FIG. 2 (b), when the board is inclined to the left and right sides of the board, the wheel 22 may be steered in the inclined direction. Based on this function, as shown in FIG. 2 (c), the front and rear boards 10 of the skateboard can proceed and propel while zigzag steering (Dr, Dl) from side to side.

On the other hand, in the skateboard of the above type, since the wheels of the directional casters are arranged in an outer line with respect to the direction of travel, the result is always lying down when the board is not forced to stand on the board.

Therefore, the skateboard is provided with a directional caster in the form of an outer file, but is capable of standing on its own, as shown in FIG.

The directional casters as described above are complicated by applying separate wheel assemblies to respective left and right wheels; In order to increase the lubrication between the left and right wheels (Wheel), the operation is slowed and the weight is increased by taking the form of a thick aggregate wheel assembly; When attempting to ride in the form of a single wheel rather than the left and right double-wheeled forms, the conversion is impossible.

The present invention,

Without damaging the skateboard left and right and thereby free turning function of the directional caster;

It solves the problem of the conventional directional casters in which the overall weight of the directional caster is increased by taking a thick bundle form to increase the lubrication between the left and right wheels or by applying a separate wheel assembly for each wheel. and;

It is intended to provide a skateboard equipped with a directional caster capable of easily converting the pair of left and right wheels of a parallel type double wheel into a single wheel.

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

Skateboard of the present invention,

Board 100, the foot of the occupant on the upper surface;

Wheel (Bheel) is supported on the board 100 is provided so as to travel, at least one of the directional caster 200 is changed to the direction where the board 100 is inclined and tilted, depending on the degree of inclination Provided through,

The skateboard is a board 100 as a whole as shown in Figures 8 and 9; As shown in FIGS. 6 and 7, there are boards 100f and 100r that are divided into front boards and rear boards or left boards and right boards. In some cases, the connecting elements 300 are used to bind the boards 100f and 100r to enable diffraction or torsional wrenching. Without the use of the connecting element 300, the divided board 100 is placed in each independent form to increase the freedom of the occupant's feet activity.

In addition, when the connection element 300 is used, a torsion bar using an elastic spring such as elastic spring, an elastic body such as rubber, or a magnet exerting magnetic force is used, and the bending wrenching action of the divided board 100 is performed. Later, the wrench may be restored to its original shape, or, on the contrary, may lack and constitute a restoring element such as the elastic bar. Such a technique may be achieved by citing an existing technique such as claim 1 or claim 3 of Patent No. 10-0394848. Can be.

3 to 4, the directional caster 200 is:

A pair of wheels 220 composed of a wheel frame 210, a left wheel 220l and a right wheel 220r, and a long axis 230,

The wheel frame 210 is pivot jointed with a wedge angle A so that its front end 211 is inclinedly attached to the bottom surface 120 of the board 100- See Figure 2 (a),

When the external load for tilting the board 100 is not applied, resistance to left and right steering diffraction of the wheel frame 210 is applied so that the left and right wheels 220l and 220r are parallel to the skateboard traveling direction. Steering so that the skateboard or board can stand on its own without falling to the left or right side, and the directional caster can be restored to its original position when the load is applied and the load is removed after steering diffraction. It is provided with a resilient elastic body (not shown in the figure), one end of the steering restoring elastic body is fixed to any specific portion of the bottom of the directional caster fixing part 250 or the board 100, the other end of the steering restoring elastic body is the long axis 230 or fixed to any part of the wheel frame 210. Here, the directional caster fixing part 250 is a part for fixing the directional casing to the board 100. In the drawing of FIG. 3, the directional caster fixing part 250 is attached to the bottom of the board 100. An example of such a method of attaching and fixing the present invention can be cited, and in the case of the steering restoring elastic body, the drawing 3 of the registered patent No. 10-0622126 or the drawing 2 to the drawing of the registered utility model No. 20-0421476 You can cite 5b.

3 and 4, the mutually spaced apart from the left and right sides of the front frame 211 to the rear left and right sides 213l and 213r of the rear frame 210 from the left and right sides of the wheel frame 210. The left arm 212l and the right arm 212r are extended while being maintained, and the separation is performed by keeping the distance beyond the wheel width of the wheel 220, as shown in FIG. 212l) can be mounted by inserting the wheel 220, in this way in the form of a parallel double-wheel (Fig. 3 and 4) in the form of a single wheel (에) used in the conventional skateboard as shown in Fig. Can be converted to shape directional casters;

3 and 4, left bearing holes 213l and right bearing holes 213r are respectively drilled in the rear end portions of the left and right arms;

The long shaft 230 penetrates the left bearing hole 213l and passes through the right bearing hole 213r across the separation distance;

The left wheel 220l is disposed on the left side of the left arm 212l and the right wheel 220r is disposed on the right side of the right arm 212r to bear on the left and right ends of the long axis 230, respectively. do.

At this time, as shown in Fig. 4 (a, b, c), lubrication adjustment is performed between the left arm 212l and the left wheel 220l and between the right arm 212r and the right wheel 220r, respectively. The washer 231 is inserted into the long shaft 230 to intervene to adjust the lubrication between the left and right wheels 220l and 220r or to provide friction between the wheel 220 and the arms 212l and 212r. Can be reduced. For example, as shown in FIG. 4 (C), the lubrication between the left and right wheels can be enlarged as shown in the lubrication adjusting washer 231. In addition, it can also serve to prevent the bending of the long axis and to reduce the friction even during excessive impact. In addition, it can be used to add a general washer (W) or to substitute the polisher adjustment washer (231).

The present invention includes all implementations of facts that are obvious to those skilled in the art within the scope of the technical idea, and specific embodiments of the skateboards to which the present invention pertains refer to the existing technology, for example, FIG. And FIG. 3 constitutes a pivot coupling P of the directional caster 200 and imparts a wedge angle A, or the long shaft so that the wheel 220 does not deviate from the end of the long shaft 230 in FIGS. 3 and 4. The end of the wheel is fixed with a screw (N) or the wheel bearing (Wheel Bearing) is applied to the wheel to reduce rolling friction, or the technique of interposing a washer between the members acting friction will be.

According to the invention,

While ensuring the skateboard left and right tilt and thereby the free turn of the directional caster,

The left and right wheels can be arranged in parallel while avoiding the increase in weight or configuration, and the directional caster in the form of a double wheel can be formed, and the lubrication between the left and right wheels can be easily and largely manufactured.

Provides a skateboard equipped with a directional caster that can be easily converted to a single wheel of the parallel double-wheeled pair of left and right wheels.

Therefore, it is easy to maintain the center at the start of riding (Riding), and the load of the occupant is distributed on both the double wheels, so it is easy to drive on the ground with severe unevenness. This is possible.

Claims (3)

A board 100 for boarding a passenger; In the skateboard is provided on the board 100 so that the wheel 220 is capable of traveling, at least one is provided through the directional caster 200, The directional caster 200 is: A wheel frame 210, a pair of left wheels 220l and a right wheel 220r, a long axis 230, The wheel frame 210 is pivotally coupled (P) with its front end having a wedge angle (A) on the board (100), and the rear lower left and right sides of the wheel frame (210) from both sides of the front upper end, The left and right arms 212l and the right arm 212r and the left and right both arms 212l and 212r which are separated from each other on the right side are maintained while the width of the wheel 220 is greater than the wheel width. Left bearings 213l and right bearings 213r respectively drilled; The long axis 230 passes through the left bearing hole 213l and passes through the right bearing hole 213r across the separation distance, After separating the left and right wheels 220l and 220r of the double-wheel type, which are provided on the outside of the left and right arms 212l and 212l, respectively, one of them is interposed between the left and right arms 212l and 212l. Skateboard having a bi-directional directional caster, characterized in that the conversion to the single-wheel form The method of claim 1, A steering restoring elastic body is provided to apply a resistance to diffraction of the wheel frame 210 and to restore elasticity after the load causing the diffraction is removed, and one end of the steering restoring elastic body is opposed to the board 100 or Fixed to one end of the directional caster fixing part 250; The other end of the steering restoring elastic body is a skateboard having a bi-directional directional caster, characterized in that fixed to the other end of the long axis 230 or the wheel frame 210 facing the other The method of claim 1, Skateboard having a dual-wheel directional caster, characterized in that the lubrication control washer 231 is interposed between the left and right arms (212l, 212r) and the wheel 220.

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