KR20030013562A - Portable mini scooter - Google Patents

Abstract

PURPOSE: A portable mini-scooter is provided to fold the scooter with sharply reducing the size and length and to easily carry the folded scooter by a handle-coupling member and an auxiliary wheel. CONSTITUTION: A portable mini-scooter comprises a frame(100) having a front wheel support unit(110), a rear wheel support unit(130), and a connection unit(140), connecting the front and rear wheel support units; a steering handle(200) rotatably installed to the front wheel support unit; a front wheel(300) installed at the lower end of the steering handle; a rear wheel(400) installed to the rear wheel support unit; a drive unit(500) having a drive motor(510) to drive the rear wheel and a power supply device(530) to supply power source to the drive motor; and a seat assembly(600) removably installed to the rear end portion of the frame. The connection unit has a pair of first connecting members(142) connected to the rear wheel support unit; a second connecting member(144) elastically coupled with the first connecting members; and a pair of fixing plates(150) installed at the front end of the second connecting member to fix the rear support unit. A pair of handle-coupling members(700) are installed to the lower port of the first connecting members. A traction handle(710) is elastically installed with the handle-coupling members. An auxiliary wheel support member(810) is coupled with the rear wheel support unit. Auxiliary wheels(800) are installed at the ends of the auxiliary wheel support member.

Description

Portable Mini Scooter {PORTABLE MINI SCOOTER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable miniscooter, and more particularly, to a portable miniscooter that can be folded with a greatly reduced volume and length and that can be easily carried and carried on a folded scooter.

In general, mini-scooters are small and lightweight structures that have no power or have small engines installed, and those small engines are designed to drive rear wheels, and are easily used due to their ease of handling. It is used. In such mini-scooters, the speed is slow and not suitable for long-distance operation. Therefore, if long-distance operation is required, it is preferable to move to the middle point by using public transportation, and then to the mini-scooter to the desired destination. The folding structure of the mini-scooter is required for easy mounting or carrying in transportation.

The folding structure of the conventional mini-scooter related to this technology is disclosed in Korean Patent Laid-Open Publication No. 1999-46780, which is configured to reduce the volume by folding the steering shaft to the rear wheel or folding the chair to the front wheel. In order to carry the mini-scooter applied with the folding structure of this structure, the driver has to lift the mini-scooter from the ground.

However, in the conventional mini-scooter as described above, even if it is a compact and lightweight structure, it is not only difficult to move a person directly with the mini-scooter, but also the volume is reduced, but the length is intact, due to the large weight due to the small engine and fuel. Therefore, there is a problem that it is practically impossible to carry the mini-scooter directly to an intermediate destination or climb up and down stairs by public transportation such as a subway.

SUMMARY OF THE INVENTION An object of the present invention has been made in view of the above-described conventional problems, and the second connection member is stretched in the first connection member of the rear wheel support constituting the frame and provided to fold the steering wheel so that the volume and length are folded in a greatly reduced state. It is to provide a portable mini scooter.

Another object of the present invention is to provide a portable mini-scooter provided with a handle coupling member and an auxiliary wheel to easily carry and carry the folded scooter.

1 is a side view showing a portable mini scooter according to the present invention;

2 is a cross-sectional view showing a folded portion of the front wheel support of the present invention,

3 is a plan view of a portable mini scooter according to the present invention;

Figure 4 is a front view showing a portable mini scooter according to the present invention,

5 is a front view showing a portable mini-scooter to which a steering wheel of another type in the present invention,

Figure 6 is a cross-sectional view showing a coupling state of the first connection member and the arm in the portable mini-scooter of the present invention,

7 is a view showing a state in which the portable mini-scooter folded to move according to the present invention.

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

100: frame, 110: front wheel support,

114: support member, 116: slot,

130: rear wheel support, 140: connection,

142: first connecting member, 144: second connecting member,

150: fixed plate, 152: hinge pin,

154: fixing notch, 156: fixing pin,

158: elastic member, 200: steering wheel,

300: front wheel, 400: rear wheel,

500: drive unit, 510: drive motor,

530: power supply means, 600: chair assembly,

700: handle coupling member, 710: towing handle,

800: auxiliary wheel, 810: auxiliary wheel support member

In order to achieve the above object, the present invention is a frame having a front wheel support, a rear wheel support and a connecting portion for connecting the front / rear wheel support, a steering wheel rotatably installed in the front wheel support, and installed at the bottom of the steering wheel A drive unit having a front wheel, a rear wheel installed at the rear wheel support unit, a drive motor for driving the rear wheel, and a power supply unit for supplying power to the drive motor, and a rear end of the frame. In the portable mini-scooter comprising a chair assembly, wherein the connecting portion is a pair of first connecting members connected to the rear wheel support, a second connecting member is elastically coupled to both of the rear end to the first connecting members and A pair of fixing plates installed at the front end of the second connecting member and configured to foldably secure the front wheel support; A pair of handle coupling members that are identical to these are installed in the lower parts of the first connecting members, and a pull handle that is identical to the second connecting member is elastically coupled to the handle coupling members; The rear wheel support is provided with an auxiliary wheel support member to be resiliently pivotable, and the auxiliary wheels are rotatably installed at both ends of the auxiliary wheel support member, respectively.

The fixed plate has a substantially fan shape, and the rear end of the front wheel support is hinged by a hinge pin between the fixed plates. In addition, a pair of fixing notches are installed in front and rear at the arced edges of the fixing plates, and the support members of the front wheel support are formed with slots, and both ends are inserted into the fixing notches corresponding to each other of the fixing plates. The fixing pin is installed through, and the fixing pin is connected to the hinge pin by the elastic member.

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.

As shown in Figure 1 and 3, the mini-scooter of the present invention is installed on the frame 100, the steering wheel 200 is installed on the front end of the frame 100, the lower end of the steering wheel 200 The front wheel 300, the rear wheel 400 is installed at the rear end of the frame 100, the driving unit 500 for driving the rear wheel 400, and a chair detachably installed on the frame 100 The assembly 600 is provided.

The frame 100 includes a front wheel support unit 110 for rotatably supporting the steering wheel 200, a rear wheel support unit 130 for rotatably supporting the rear wheels 400, and the front / rear wheel support units 110 and 130. ) Has a connecting portion 140 for connecting.

The front wheel support 110 has a lower end of the support tube 112 into which the steering shaft 210 of the steering wheel 200 is rotatably inserted, and a front end thereof is connected to the outer surface of the support tube 112, and the rear end of the connection unit 140. It has a support member 114 which is hinged to the front end.

As shown in FIG. 3, the steering shaft 210 includes a support member 216 detachably coupled to a lower end of the steering shaft 210, and support arms 218 coupled to both ends of the support member 216. A yoke 214 having a recess is installed, and the front wheel 300 is rotatably installed between both support arms 218 of the yoke 214. Accordingly, when the handle 212 of the steering wheel 200 is turned to the left and right, the driving angle of the front wheel 300 may be adjusted to the left and right through the steering shaft 210 and the yoke 214. The mud flap 220 may be installed below the support member 216 of the yoke 214 so that stones or mud on the road do not splash toward the driver due to the rotation of the front wheel 300.

The rear wheel support 130 has a pair of support members 130 for supporting the shaft 410 of the rear wheel 400, as shown in FIGS. 1 and 3, and a pair of the rear wheel support 130. The support member 130 is connected to the rear end of the connecting portion 140 to form a frame (100).

According to the present invention, in order to be able to stretch the length of the frame 100, the connecting portion 140 is made of a stretchable structure. That is, the connecting portion 140 has a pair of first connecting members 142 connected to the pair of supporting members 130 of the rear wheel support 130 and both rear ends of the first connecting members 142. It has a second connecting member 144 that is elastically coupled, and a pair of fixing plates 150 installed at the front end of the second connecting member 144 to foldably secure the front wheel support 110.

The first connection members 142 are made of a pipe material and are connected to the support plate 170 supporting the driving part 500.

The second connection member 144 is detachably coupled to both ends of the web 146 and the web 146 which are hinged to the support member 114 of the front wheel support 110 and the rear end of the first connection member ( It has a depressed shape by having both arms 148 elastically inserted into the 142. Accordingly, when the web 146 is grabbed and pushed toward the rear wheel 400, both arms 148 of the second connecting member 144 are inserted into the first connecting members 142, thereby reducing the length of the frame 100, 146 holding the front wheel 300 and the length of both arms 148 of the second connection member 144 drawn out from the first connection member 142 is increased, so that the length of the frame 100 can be restored. .

In addition, in order to prevent both arms 148 of the second connecting member 144 from being separated from the first connecting members 142 and the arms 148 do not flow, the second connecting member as shown in FIG. Stoppers 148a are detachably coupled to rear ends of both arms 148 of the connecting members 144, and inlet portions of the first connecting members 142 have an inner diameter smaller than the outer diameter of the stopper 148a. It is preferable to form each of the parts 142a.

The fixing plate 150 has a substantially fan shape, and a pair is installed at the front end of the second connection member 144, that is, at the center of the upper surface of the web 146. The rear end of the support member 114 of the front wheel support 110 is hinged by the hinge pin 152 between the pair of fixing plates 150, thereby folding the front wheel support 110.

According to the present invention, in order to fix the front wheel support 110 in a folded or unfolded state, as shown in FIG. 2, a pair of fixed notches 154 are installed at each of the arced edges of the fixed plates 150, respectively. The support member 114 of the front wheel support 110 is formed with a slot 116, and fixed to both ends of the fixing notches 154 corresponding to each other of the fixing plates 150 in the slot 116. Pin 156 is installed through, the fixing pin 156 is connected to the hinge pin 152 by the elastic member 158.

Accordingly, the fixing pin 156 is always received by the elastic member 158 toward the hinge pin 152, so that both ends of the hinge pin 152 are inserted into the fixing notch 154, so that the fixing pin 156 is provided. The both ends of the do not come off from the fixed notch 154, the folded state of the front wheel support 110 is fixed. In the state in which both ends of the hinge pin 152 are inserted into the two front fixed notches 154 corresponding to each other, the front wheel support 110 and the steering wheel 200 are normally deployed to be in a state where the scooter can be mounted.

In this state, when the fixing pin 156 is lifted up and separated from the front two fixing notches 154, the front wheel support 110 may be pivoted to the rear side around the hinge pin 152, and the front wheel support 110 may be rotated. When the fixing pin 156 is released when the position of the fixing pin 156 is positioned at the position corresponding to the two fixing notches 154 at the rear side, both ends of the fixing pin 156 may be disposed at the rear of the elastic member 158. Since it is inserted into the two fixing notches 154 at the rear by the elastic force, it is possible to fix the folded state of the front wheel support 110.

Meanwhile, power is supplied to the driving motor 510 for driving the rear wheel 400 and the driving motor 510 to the support plate 170 connecting the pair of first connecting members 142 of the connecting parts 140. The driving unit 500 having a power supply means 530 to be installed. The drive motor 510 is supported on the upper portion of the support plate 170, the power supply means 530 is mounted on the lower portion of the support plate 170, for example, a small lightweight, rechargeable battery such as a polymer battery can be used Is preferred. The rotational force of the driving motor 510 may be transmitted to the rear wheel 400 through the timing belt 520.

In addition, the upper portion of the driving unit 500 and the rear wheel 400 is covered with a protective cover 540, both ends of the protective cover 540 to the first connecting member 142 by the connecting member 542. Each is supported in a connected state. The protective cover 540 also functions as a mud flap to prevent stones, mud, and the like from scattering on the road by the rotation of the rear wheels 400. In addition, a tension control roller 550 for adjusting the tension of the timing belt 520 may be installed on the bottom of the protective cover 540.

It is preferable that the support tube 560 is installed on the upper surface of the protective cover 540, the chair assembly 600 is detachably installed in the support tube 560. That is, the chair assembly 600 has a support rod 610 to which the lower end is detachably coupled to the support tube 560, and a saddle 620 installed on the upper end of the support rod 610. The chair assembly 600 may be detached from the support tube 560 as necessary.

A pair of handle coupling members 700 that are the same type as the first connection members 142 are inserted and installed at the lower portions of the first connection members 142 so as to easily carry the folded scooter. Tow) traction handle 710 of the same type as the second connection member 144 is elastically coupled. That is, the stretch structure of the traction handle 710 is the same as the stretch structure of the second connection member 144, and thus a detailed description thereof will be omitted.

In addition, the rear wheel support 130, the auxiliary wheel support member 810 is rotatably installed, and both ends of the auxiliary wheel support member 810, the auxiliary wheel 800 is rotatably installed.

Specifically, the auxiliary wheel support member 810 is a recessed member and extends forward from both ends of the web 812 disposed at the rear of the rear wheel 400 and the center of the rear wheel 400. Both arms 814 and 814 are pivotally coupled to 410, and the auxiliary wheels 800 are rotatably provided at the front ends, i.e., free ends, of these arms 814, respectively. Although not shown here, it is preferable that the elastic members are interposed between the shaft 410 of the rear wheel 400 and the engaging portion of both arms 814 so that the auxiliary wheel 800 does not touch the floor when the scooter is driven.

In addition, the web 812 of the auxiliary wheel support member 810 contacts the support tube 560 supporting the chair assembly 600 to fold and transport the scooter, and the auxiliary wheel 800 is approximately rear wheel 400. When the auxiliary wheel support member 810 is pivoted so as to lie on the rear lower portion of the support wheel 560, the auxiliary wheel support member 810 may be fixed to the outer surface of the support tube 560 to fix the pivot state of the auxiliary wheel support member 810. It is preferable that fixing means 570 is detachably fixed to the web 812. As the fixing means 570, for example, as shown in FIGS. 2 and 3, a means such as a pivotable hook capable of engaging the web 812 of the auxiliary wheel support member 810 may be employed.

Next, the operation of the portable mini scooter according to the present invention configured as described above will be described.

In order to ride a scooter, when the chair assembly 600 is separated, the chair assembly 600 is first coupled to the support tube 560 on the upper portion of the protective cover 540. Next, the fixed wheel support member 810 is separated from the fixing means 570. Therefore, since the fixed wheel support member 810 is fixed by turning it to its original state, the fixed wheel 800 does not touch the floor while the rear wheel 400 is in contact with the floor.

Next, the second connecting member 144 is drawn out from the first connecting members 142 by pulling the web 146 of the second connecting member 144 forward and toward the front wheel 300, thereby increasing the length of the frame 100. You can restore it. After that, the front wheel support 110 is unfolded.

That is, after the front wheel support 110 is folded, both ends of the fixing pins 156 are separated from the rear fixing notches 154, and then both ends of the fixing pins 156 are fixed fixing portions 154 in the front. When the fixing pin 156 is released while the front wheel support 110 and the steering wheel 200 are pivoted so as to be in a position corresponding thereto, both ends of the fixing pin 156 are fixed forward by the elastic force of the elastic member 158. The fixing pin 156 is not detached from the front fixing notches 154 and the front wheel support part is inserted into the notch parts 154 and in this state, the fixing pin 156 is always receiving an elastic force toward the hinge pin 152. The deployment state of the 110 is fixed. In this state, ride the scooter.

If it is necessary to move while riding the scooter, for example, by subway, as shown in FIG. 7, the scooter may be folded to reduce the volume and length, and then drag the scooter.

That is, when folding the front wheel support 110, the chair assembly 600 is separated from the support tube 560 on the upper portion of the protective cover 540 so that the steering wheel 200 does not interfere. Next, when the web 146 of the second connecting member 144 is grabbed and pushed toward the rear wheel 400, the lengths of the arms 148 of the second connecting member 144 are inserted into the first connecting members 142 and 142. The length of the frame 100 is reduced. In this state, the fixing pin 156 is lifted up to be separated from the two fixing notches 154 in the front, and then the front wheel support 110 and the steering wheel 200 are pivoted to the rear side around the hinge pin 152 to be fixed. The fixing pin 156 is placed in a state where both ends of the pin 156 correspond to the two fixing notches 154 at the rear. In this case, both ends of the fixing pin 156 is inserted into the two fixing notches 154 at the rear side by the elastic force of the elastic member 158, thereby fixing the folded state of the front wheel support 110. Next, the auxiliary wheel support member 810 is pivoted to fix the web 812 to the fixing means 570 so that the auxiliary wheel 800 reaches the floor, and then pull the pull handle 710 to pull the handle coupling member 700. ), The tow handle 710 is withdrawn.

Therefore, if the hand holding the tow handle 710 and drag the scooter, the auxiliary wheels 800 are inclined while the scooter is inclined while touching the floor can be easily dragged without having to force the scooter with one hand. The other hand is to carry the separated chair assembly 600.

For example, when the vehicle is loaded and transported without dragging the scooter, both the volume and the length of the scooter are reduced, so that the scooter can be easily inserted into a cramped trunk or a rear seat.

Although not shown here, a detachable structure of the chair assembly 600 may be provided in the frame 100 to easily carry the chair assembly 600. Alternatively, as shown in FIG. 7, the structure of the steering wheel 200 may be changed to a structure in which the chair assembly 600 does not interfere when the front wheel support 110 is folded. For example, when the folding handle 200 is folded to form an insertion space into which the chair assembly 600 can be inserted, the scooter can be folded and carried without removing the chair assembly 600.

Portable mini-scooter of the present invention configured as described above can not only reduce the volume of the scooter by folding the front wheel support 110, but also reduce the length of the scooter by the flexible frame 100 to make the scooter in a compact size I can carry it. Therefore, the scooter is easy to carry.

In addition, by employing the traction handle 710 and the auxiliary wheel 800, the scooter can be dragged without effort, so that the scooter is more convenient to carry.

In addition, since each component is mostly combined in a detachable structure, the components can be disassembled and stored when stored for a long time in an appropriate place in the room, so that they can be safely stored from theft, and can be stored conveniently and in a narrow space. It takes up less space and can store components so as not to be damaged by rust.

Claims (2)

A frame 100 having a front wheel support 110, a rear wheel support 130, and a connecting portion 140 connecting the front / rear support, a steering wheel 200 rotatably installed on the front wheel support, and the steering. Front wheel 300 is installed at the lower end of the handle, the rear wheel 400 is installed on the rear wheel support, the drive motor 510 for driving the rear wheel and the power supply means for supplying power to the drive motor 530 In the portable mini-scooter comprising a drive unit 500 having a) and a chair assembly 600 detachably installed at the rear end of the frame, The connection part includes a pair of first connection members 142 connected to the rear wheel support part 130, a second connection member 144 and a second connection member elastically coupled to both rear ends of the first connection members. It is installed at the front end of the pair has a pair of fixing plate 150 for fixing the front wheel support 110 to be folded; A pair of handle coupling members 700 which are the same as these are inserted and installed in the lower portion of the first connecting members 142, and a pull handle which is the same as the second connecting member 144 in the handle coupling members 700. 710 is elastically coupled; A portable mini, characterized in that the auxiliary wheel support member 810 is installed on the rear wheel support 130 so as to be able to swing resiliently, and the auxiliary wheels 800 are rotatably installed at both ends of the auxiliary wheel support member 810. scooter. The fixed plate 150 has a pair of fixed notches 154 formed on the outer surface of the fixed plate 150, and a rear end of the front wheel support 110 is hinged by the hinge pin 152 between the fixed plates. Combined, The support member 114 of the front wheel support 110 is formed with a slot 116 and the fixing pin 156 is inserted into both ends of the fixing plate 150 and the fixing notch 154 corresponding to each other. Portable pinscooter, characterized in that the fixing pin 156 is connected to the hinge pin 152 by the elastic member 158 is installed through.