KR20150106298A

KR20150106298A - Kickscooter

Info

Publication number: KR20150106298A
Application number: KR1020140029151A
Authority: KR
Inventors: 김자연
Original assignee: 주식회사 에스티펀
Priority date: 2014-03-11
Filing date: 2014-03-11
Publication date: 2015-09-21

Abstract

The present invention relates to a kick scooter called a kick board. The kick scooter comprises a front wheel unit, a board unit, and a rear wheel unit. The front wheel unit comprises a steering handle gripped with each hand in an upper and a lower side of a front wheel strut and a front wheel performing rolling movement. The board unit comprises a foot board on which a foot is put. A rear wheel unit comprises a rear wheel strut wherein a rear wheel performing rolling movement is mounted. More specifically, a pair of rear wheels are arranged in parallel for driving safety and ease of riding. Moreover, a shock absorbing spring is mounted to alleviate a shock due to tilting operation, unevenness on the ground, and the like.

Description

Kick scooter {Kickscooter}

The present invention relates to a kick scooter (Kickscooter), which is also commonly referred to as a kickboard.

Generally, the kick scooter generally comprises a front wheel, a board, and a rear wheel. The user holds the steering wheel provided at the upper end of the front wheel part with his / her hands and adjusts and balances the steering wheel. The driving force is obtained by putting one foot on the board and rolling the ground with the other foot.

The kick scooter is used as a sport and a playground for children, and as a means of short distance for adults.

As shown in FIG. 1, a kick scooter including a front wheel 1, a board 2, and a rear wheel 3 is provided in the related art.

Specifically, in the rear wheel 3,

First, as shown in FIG. 1A, there is provided a configuration in which rear wheels are provided by two two-wheeled wheels and are arranged in parallel on the left and right sides of the board unit 2, respectively. Is easy to maintain. However, since a plurality of rear wheels are arranged in parallel, it is not easy to carry out a tilting operation in which the kick scooter is arbitrarily tilted to the left and right in order to turn the corner during running or when necessary.

Also, as shown in Fig. 1B, it is widely known that the rear wheel is provided with one outer ring, which is a structure suitable for a child of a relatively older age group or a user who is somewhat trained. However, there is a problem that it may not be easy to manipulate for young children or beginners of the age group.

In addition, the kick scooter illustrated in FIG. 1A and FIG. 1B has a problem in that it can not be structured to travel on unpaved roads or to absorb loads and shocks of external forces caused by vertical movement of the user.

The kick scooter of the present invention is designed to solve the above-described problems,

The rear wheel is made of a double-wheel structure so that the center can be easily maintained, and the kick scooter can be tilted to the left and right to enable the tilting, so that the centrifugal force generated when the corner is rotated can be overcome,

It adapts elastically against protruding or depressed surface of the ground to absorb the impact and provide the user with a feeling of good ride.

In order to solve the above-mentioned problems, the kick scooter of the present invention comprises a front wheel part, a board part and a rear wheel part,

The board portion includes a footboard disposed horizontally and in the form of a flat plate; A front strut supporter that joins the front wheel to a front end of a footboard; A rear portion of the footboard, and a rear portion of the footboard,

The front wheel portion includes a front strut coupled to the front strut supporter and disposed perpendicular to the front of the footboard; A steering handle provided at an upper end of the front strut; And a front wheel axially coupled to a lower end of the front strut,

A rear wheel strut which is provided in a plurality of rear wheel portions and is disposed at the left and right sides of the rear end of the footboard and is hinged to the front end of the rear wheel strut at the rear end side wall of the footboard to swing in the vertical direction; A rear wheel axially coupled to a rear end of a rear strut; A hinged coupling to the upper end of the rear strut body is a foot brake; A front end of the shock absorber is hinged to the shock absorber supporter, and a rear end of the shock absorber is fixedly coupled to the front end of the foot brake.

According to the configuration of the present invention,

It is easy to use even if it is a beginner because tilting can be performed by tilting the kick scooter to the left and right according to the will of the user. Therefore, it is easy to effectively cope with the centrifugal force generated at the time of cornering,

Since the impact can be reduced by elastically responding to the unevenness of the ground surface, a kick scooter with a smooth ride feeling is provided.

1 is an example of a conventional kick scooter in which a rear wheel is constituted by parallel rear wheels; B is an example in which the rear wheel is adopted as an outer ring;
Hereinafter, embodiments of the present invention will be described.
Fig. 2 is a perspective view showing the whole. Fig.
3 is an enlarged view showing a portion;
4 is a magnified view of the part seen in the other direction;
FIG. 5 is a plan view showing the rear end of the footboard, centered on a rear view of the center; FIG. Bottom view; Left side view; Right side view;
Fig. 6 is a top view, a bottom view, a left side view, and a right side view, centered on a front view of the center A, as a shock-assisting supporter; B is a plan view showing a state before cutting and bending;
7 is an A exploded perspective view showing a fixed connection between a rear end of a footboard and a shock absorber supporter; B combined perspective;
Figure 8 is a perspective view showing the hinge combination of the rear end of the footboard and the rear strut; Right is an example of a combined;
9 is an A front view of the rear strut; B plan, side view and bottom view; C back view;
10 is an exploded perspective view of the hinge joint between the rear strut and the foot brake. B combined perspective;
11 is an exploded perspective view of the shock-absorber assembly; B assembled perspective view;
12 is an exploded perspective view illustrating an example of fixed engagement of a shock absorber and a foot brake. B combined perspective;
Fig. 13 is an exemplary view of a rear wheel assembly assembled and assembled as a whole. Fig.
FIG. 14 is an exploded perspective view illustrating a hinge joint between a shock absorber supporter and a shock absorber assembly; FIG. B combined perspective;
Fig. 15 is a side view and a rear view of a state in which the swinging action of the rear wheel portion is shown as an example; Fig. B is a side view and a rear view of a state deformed by an external force;
16 is a side view of the A-original state showing the foot brake operation of the rear wheel; Side view of the state of being pressed and deformed by foot B
17 is a partial side view for showing a hinged state of the rear wheel A; B < / RTI > shock absorber supporter; C to F illustrate examples in which the above-described shock-assisting supporter function is implemented in order;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2, the kick scooter of the present invention comprises a front wheel part 100, a board part 200 and a rear wheel part 300.

The board unit (200)

A front strut supporter 220 which is disposed horizontally and which takes the form of a flat plate so that the user can put his or her feet on the footboard, a front strut supporter 220 which joins the front wheel 100 to a front end of the footboard, And a footboard rear end sidewall 212. As shown in FIG.

The front wheel unit 100 includes:

A front strut 110 coupled to the front strut supporter 220 and vertically disposed at a front end of the footboard so as to be capable of steering operation, a steering strut 110 provided at an upper end of the front strut 110, And a front wheel 130 axially coupled to the lower end of the front strut 110 so as to be capable of rolling.

In addition, a configuration may be added to the front wheel strut supporter 220 so that the front wheel part 100 and the board part 200 can be folded together to reduce the volume for convenience of storage and transportation.

A brake is mounted on the front wheel 100 or the rear wheel 300 and connected to the steering wheel 120 by a wire so that the brake can be operated by the user's hand. You may.

In the above, a more detailed configuration can be cited as known in the art.

In the example shown in Figs. 3 and 4, the rear wheel portion 300 includes:

A rear strut 310 which is horizontally disposed at a rear end of the board unit 200 and is hinged to the rear strut front end 312 on the footboard rear end side wall 212 so as to swing in a vertical direction and swing 1, and,

A rear wheel 330 that is axially coupled (a2) to the rear end of the rear strut 313 so as to be capable of rolling,

A foot brake 320 which is hinged to the upper end of the rear strut body 311 so as to swing in a vertical direction so as to be swingable,

The front end 342 of the shock absorber assembly is hinged to the shock absorber supporter 230 such that the front end 342 of the shock absorber assembly is hinged h3 and the rear end 343 of the shock absorber assembly is positioned at the front end of the footbrake 322 fixedly coupled to each other.

The footboard rear end side wall 212 and the shock absorber supporter 230 together form a board connector.

Hereinafter, the rear wheel portion 300 coupled to the board fastening portion will be described in more detail.

As shown in Figure 5, the footboard 210,

Four fixed connection f1 portions for fixing the shock assembly supporter 230 to the footboard rear end upper plate 211 are formed and the four fixed connections f1 are disposed at the edges of a virtual rectangle. The fixed connection f1 for attaching the shock-assemble supporter 230 has a fixed body f1b such as a rivet or a screw as shown in Fig. 7 in a fixing hole f1a formed by grooving on the footboard rear upper plate 211 Respectively.

The footboard rear side sidewalls 212 are formed in a vertical wall shape downwardly from the left and right edges of the footboard rear upper plate 211. The footboard rear side sidewalls 212 are horizontally grooved, (h1a) is formed. In the hinge hole h1a, the rear strut front end 312 is simultaneously engaged with a hinge axis h1b which takes the form of a rivet, a screw or the like as in the example of Fig. 8, thereby forming a hinge connection h1.

6A, the shock-absorber supporter 230 includes a plurality of

The hinged coupling plate 231 is formed so as to be upwardly raised on both sides of the left and right sides of the fixed coupling plate 232 in the rectangular shape, taking the shape of a triangle as viewed from the side, do.

In this case, as shown in FIG. 6B, when both sides of a rectangular metal plate are cut in a triangular shape, the metal plates can be easily manufactured by bending them. Particularly, a metal plate wound in a roll form is loosened and cut diagonally at regular intervals, so that fabrication and mass production can be achieved easily and at low cost. The hinge hole h3a and the fixing hole f1a may also be formed in order to form the hinge joint h3 and the fixed joint f1 in the shock assembly supporter 230. [ Four fixing holes f1a are formed corresponding to the fixing holes f1a of the rear plate top plate 211 of the footboard.

7A and 7B, the shock absorber supporter 230 is attached to the rear plate upper plate 211 of the footboard 200. The fixing hole f1a of the shock assembly supporter 230 and the upper plate 211 are fixed to each other by a fixing body (f1b) after fitting the fixing holes (f1a) of the fixing members (f1a) and (211).

8 illustrates the hinge connection h1 between the rear end of the board unit 200 and the rear strut 310. As shown in FIG.

The hinge connection h1 is axially coupled to the hinge hole h1a by a hinge shaft h1b sandwiched therebetween so that the hinge connection h1 can bend in the vertical direction as an axis of refraction.

9, the rear strut 310 includes a rear strut front end 312 and a rear strut rear end 313 around the rear strut body 311,

A hinge hole h1a of the rear strut 310 corresponding to the hinge hole h1 of the footboard rear side wall 212 is formed at the front end of the rear strut 310 so as to form a hinge defect h1, The hinge axis h1b is fitted. The foot bracket 320 includes a hinge coupling portion 314 protruding upward from the middle of the body of the rear strut 310 and formed in a triangular shape and a foot brake front end 321 is hinged to the hinge coupling portion of the foot brake 320, And a hinge hole h2a for the foot brake 320 is formed so as to be engaged (h2). The rear strut rear end 313 is formed with a shaft coupling a2 for supporting the rear wheel. 9 and the like, the illustration of the rear wheel is omitted for the sake of convenience, and reference is made to Fig. 8 and the like with respect to the city where the rear wheel is mounted.

In the example of FIG. 8, the rear strut 310 having the above-described structure swings (swing 1) the hinge connection h1 in the up-and-down direction with a refraction shaft within a certain range with the rear wheel mounted, The cushioning action can be performed up and down with respect to the unevenness of the ground by the swing of the floor 310. 15, the performance of the tilting function to tilt the kick scooter to the left and right by the difference in height dh of the left and right rear struts 310 is as shown in FIG. It is possible. Since the kick scooter of the present invention has a pair of rear wheels disposed in parallel and arranged in parallel, the above configuration is particularly important when performing the tilting action.

In the example of FIG. 10A, the foot brake 320,

The same hinge hole h2a corresponding to the foot brake hinge hole h2a, which is formed in the rear strut 310, is formed at the front end 322 of the foot brake, And a hinge connection (h2) in which a hinge shaft (h2b), which serves as a foot brake refraction shaft, is fitted. When the user presses the foot, the swing 2 is performed as shown in FIG. 10B by using the hinge connection h2 of the foot brake 320 as a refraction axis. As shown in FIG. 16, the foot brake body 321 Is lowered and the bottom surface of the foot brake body 321 applies a frictional force to the upper end of the rear wheel 330 to thereby perform a braking action of the brake. At this time, the foot brake body 321 acts as a lever with the hinge connection h2 as a lever to pressurize and deform the shock spring, so that the elastic force is accumulated. Then, when the foot is released, elasticity returns to the original position.

11, the shock-absorbing assembly 340 includes a shock-strut front end 342 positioned forward of the shock-strut body 341 and a rearward shock-strut rear end 343 positioned behind the shock-

The front end 342 of the shock strut is provided with an incision groove 344 formed in a vertically incised shape so as to interpose the hinge coupling plate 231 of the shock assembly supporter 230 therebetween, A hinge coupling hole h3a is formed in the incision groove 344 so that the hinge coupling plate 231 is inserted in the vertical direction and then the hinge shaft h3b is horizontally inserted to form the hinge coupling h3 do.

In the shock strut body 341, A front end holder 346 disposed at the rear of the hinge connection h3 and having a ring shape is inserted and tightly fixed and a shock spring 345 is disposed at the rear side of the front end holder 346. The front end of the shock spring 345 is fixedly coupled to the rear surface of the front end holder 346 and the body of the shock spring 345 is fitted in the shock strut body 341 in the form of a coil of a metal member Is elastically compressed by an external force while being guided in the longitudinal direction, and resiliently restored when the external force is removed.

A rear end holder 347 in the form of a ring corresponding to the front end holder 346 is disposed at the rear end 343 of the shock absorber 341. A front end of the rear end holder 347 is fixed to the rear end of the shock absorber 345, (f4).

At this time. 11A, the length d1 of the shock strut body 341 from the rear surface of the shear holder 346 to the rear end of the shock strut 343 is shorter than the length d2 of the shock spring 345 (D1 < d2). Since the space required to be shortened when the shock spring 345 is compressed by an external force is required and the space can be provided by the length difference d1 < d2. If the length difference (d1 < d2) is absent or insufficient, the shock-strut rear end 343 and the rear end holder 347 may abut each other, which may hinder the elastic restoring action of the shock spring 345.

As shown in FIG. 12, the shock-absorbing assembly 340 assembled and assembled as described above is fixedly coupled to the front end of the foot brake 320 so as to be attached as a body. In the present invention, the term " fixed engagement " refers to a rigid attachment such that it can not move, and the method is achieved through riveting, screwing, bonding or welding.

13 shows the rear wheel assembly 300 in which all the components are assembled. The rear wheel assembly 300 includes two left and right hinges h1, h2, h3 and h3, which are independently disposed on the left and right sides of the rear end of the footboard, The kick scooter of the present invention is allowed to be tilted and tilted to either left or right by the interaction of the shock spring 345 or swung up and down (swing 1, swing 2, swing 3) Thereby reducing the impact. When the external force is removed, the rear wheel portion 300 is returned to the original shape by the action of the elastic restoring force of the shock-absorbing assembly 340.

14 illustrates the hinge coupling h3 of the shock absorber assembly 340 and the shock absorber supporter 230. The hinge coupling plate 231 of the shock absorber supporter 230 contacts the shock strut front end 342 And is guided by a hinge shaft h3b in the horizontal direction so that the rear end 343 of the shock absorber assembly can swing 3 in the vertical direction.

At this time, it is preferable that the triangular upper corner vertex 231p of the hinge coupling plate 231 is completely inserted into the incision groove 344 so as not to be in contact with the user for safety, and interposed therebetween.

17 illustrates a structure for simply separating and coupling the hinge connection h3 between the shock absorber supporter 230 and the shock absorber 340. In order to achieve the hinge connection h3, The shape of the hinge hole h3a to be formed in the hinge portion 231 is in the form of ∩.

17B, the hinge hole h3a of the hinge coupling plate 231 has an opening h0 that is open to the outside, and between the hinge hole h3a and the opening ho, h3a protruding upward from the engaging portion h1. Therefore, once the hinge shaft h3b is fitted, the hinge shaft h3b is caught by the engaging portion ht and can not escape out of the opening herself by itself.

If it is necessary to take out the hinge shaft h3b from the hinge hole h3a in order to reduce the volume at the time of storage or transportation, the hinge shaft h3b may jump over the take- The user must be pulled up. The distance between the hinge connection h1 of the rear strut 310 and the hinge connection h3 of the shock absorber 340 is larger than the original distance dd1 shown in Fig. And becomes the distant distance dd2. The distance dd2 is compensated by the bending of the hinge joint and the elastic deformation of the shock spring, and eventually, the shock spring 345 is loaded. Through the above-described operation, the hinge coupling h3 is not disassembled by itself and can be separated only when the user performs the operation of pulling the shock-absorbing assembly.

In the case of joining again, the procedure starts from FIG. 17F and is reversed.

100: front wheel part
110: front strut
200: board part
210: Footboard
211: Backboard top plate of footboard
212: Footboard rear side wall
220: Front strut supporter
230: Shock-up assembly supporter
300: rear wheel
310: rear strut
320: Foot brake
330: rear wheel
340: Shock-up assembly
341: Shock-up strut body
345: Shock-up spring

Claims

Board part; A front wheel; A kick scooter comprising a rear wheel portion,
The board portion includes a footboard disposed horizontally and in the form of a flat plate; A front strut supporter that joins the front wheel to a front end of a footboard; A rear portion of the footboard, and a rear portion of the footboard,
The front wheel portion includes a front strut coupled to the front strut supporter and disposed perpendicular to the front of the footboard; A steering handle provided at an upper end of the front strut; And a front wheel axially coupled to a lower end of the front strut,
And a plurality of rear wheel portions are disposed on left and right sides of the rear end of the footboard, respectively,

The method according to claim 1,
The rear wheel portion includes a rear strut that is hinged to a front end of a rear wheel strut on a sidewall of a rear portion of the footboard to swing in a vertical direction; And a rear wheel axially coupled to a rear end of the rear strut.

3. The method according to claim 1 or 2,
And the rear wheel portion includes a foot brake hinged to an upper end of the rear strut body.

The method of claim 3,
Wherein the rear wheel portion includes a shock absorber in which a front end of a shock absorber is hinged to the shock absorber supporter and a rear end of the shock absorber is fixedly coupled to a front end of the foot brake.