WO2010050749A2

WO2010050749A2 - Manual scooter

Info

Publication number: WO2010050749A2
Application number: PCT/KR2009/006272
Authority: WO
Inventors: 김종민
Original assignee: 주식회사 에스비레포츠
Priority date: 2008-10-28
Filing date: 2009-10-28
Publication date: 2010-05-06
Also published as: WO2010050749A3; KR200446184Y1

Abstract

The present invention relates to a manual scooter with two pedals which are moved up and down in opposite directions, thereby generating driving force. The manual scooter comprises: a frame for forming the framework of the manual scooter; front and rear wheels rotationally installed, spaced from each other in the front and rear ends of the frame; and left and right rotary links installed on both ends of a drive shaft which is rotationally installed in the frame and which is distanced from a rear wheel axle, which is the center of rotation of the rear wheel, at a certain distance in the direction of the front wheel, each end of the left and right rotary links being connected to and rotating along with the drive shaft.

Description

Hand scooter

The present invention relates to a manual scooter, and more particularly, to a manual scooter that can improve workability and manufacturing cost while improving workability and manufacturing cost by improving the structure of the scooter.

Conventional scooters have a manual scooter that has one foot on the footboard between the front and rear wheels, and has been retrofitted with a kickboard that advances while pushing the ground with the other foot while holding the handle shaft of the front wheel, and separately on the rear side of the footrest. Equipped with a power transmission means of the electric scooter for rotating the rear wheels by the power of the power transmission means.

Among these, the manual scooter uses only one foot to move forward and slow down the ground, which may adversely affect the balanced growth of infants and children, which are growing, and it is difficult to use for a long time due to severe fatigue on one leg. there was.

In order to solve this problem, recently, a scooter has been developed in which a driver moves both feet on a footrest and rolls forward. For example, Patent Publication No. 2003-60448 "Scooter which can be driven by scaffolding" and Patent No. 2004-83320 "Foot Scaffold driving scooter" published in the Republic of Korea have been proposed.

Both of the inventions have a structure in which two footrests are provided, respectively, so that the driver rolls them with both feet and uses the power to rotate the rear wheels to advance the scooter.

These prior arts are hinged portions of both sides of the footrest is located in the front and the rear link is coupled to the rear side of the foot by reciprocating the rear of the footrest up and down relative to the hinge portion, so the load of the force is concentrated on the rear side of the foot, the direction of applying the driving direction This is the opposite direction and there is a side that is difficult to operate stable.

In addition, the power transmission structure is difficult to repair in the case of a failure, and there is a problem in that the maintenance cost is required because the belt must be replaced regularly as the belt is used.

One aspect of the present invention relates to a manual scooter that generates driving force while the two scaffolds are lifted in opposite directions to each other, and a frame forming a skeleton of the manual scooter, and spaced apart from each other in the front and rear of the frame, respectively. It is provided in pairs at both ends of the front wheel and the rear wheel, and the drive shaft which is spaced a predetermined distance from the rear wheel shaft, which is the center of rotation of the rear wheel, in the front wheel direction so as to be rotatably provided in the frame, each one end of the drive shaft It is configured to include a left and right rotary link is connected to the rotation with the drive shaft.

In addition, the manual scooter according to the present invention is provided in pairs on both sides of the frame, and the other ends of the left and right rotary links are connected so as to move linearly, respectively, to guide the rotation of the left and right rotary links. One end is connected to both ends of the support shaft across the frame so as to be rotatable in opposite directions, and the other end is extended to the front wheels, and the left and right rotary links connected to the left and right footrests. It further comprises a power transmission means for connecting between the rear wheel shaft and the rotation of the left and right footrest and the rear wheel.

Therefore, in the manual scooter of the present invention, since the rotating shaft of the footrest is located at the rear of the manual scooter, the driver steps on the front part of the footrest to generate rotational power, so that the direction in which the driver loads the weight to roll the footrest coincides with the traveling direction of the scooter. Done. Accordingly, since the driver operates the manual scooter in a manner similar to a walking or jogging position as much as possible, it is easy to operate the scooter, such as changing the direction of the scooter.

In addition, according to the present invention, since the rotational link and the power transmission means are directly engaged, power is transmitted to the rear wheels, so that power transmission by the rotation of the footrest is made stable, and its structure is relatively simple, so that the maintenance of the manual scooter is easy. There is also.

In addition, in the present invention, by the radial difference between the first and second rotating gears constituting the power transmission means of the manual scooter, the rotation angle of the drive link portion connected to the footrest is transmitted to the rear wheel in a sufficiently amplified state, the manual scooter It is possible to increase the speed of the driver, and at the same time, the force for the driver to roll the footrest increases, so that the driver's momentum increases.

In addition, in the present invention, the footrest is rotatably provided in a direction perpendicular to the lifting direction, and the width between the footrests is adjustable according to the driver's stride length, thereby improving the convenience of the driver.

1 is a side perspective view showing the internal configuration of a specific embodiment of the present invention.

Figure 2 is a plan view showing a part of the manual scooter according to a specific embodiment of the present invention.

Figure 3 is a partially cutaway plan view showing a portion of the scaffold constituting a specific embodiment of the present invention is cut out.

4 and 5 is an operational state diagram showing a process of operating a specific embodiment of the present invention, respectively.

Figure 6 is a perspective view schematically showing the configuration of the drive shaft gear, the power transmission means and the rear wheel gear constituting a specific embodiment of the present invention.

7 and 8 is an operational state diagram showing a process of operating another embodiment of the present invention, respectively.

9 is a plan view showing the configuration of another embodiment of the present invention.

A feature of the present invention relates to a manual scooter that generates driving force while the two scaffolds are lifted in opposite directions, each of which comprises a frame forming a skeleton of the manual scooter and spaced apart from each other in the front and rear of the frame. It is provided in pairs at both ends of the front wheel and the rear wheel, and the drive shaft which is spaced a predetermined distance from the rear wheel shaft, which is the center of rotation of the rear wheel, in the front wheel direction so as to be rotatably provided in the frame, each one end of the drive shaft It is connected to the left and right rotary link is rotated with the drive shaft, and in addition to the pair is provided on both sides of the frame and the other end of the left and right rotary link is connected to each other to move linearly left and right Guides the rotation of the link and each end is connected to both ends of the support shaft across the frame The left and right footrests rotatably installed in opposite directions and connected to the left and right footrests extending toward the front wheels, and the left and right rotary links connected to the left and right footrests and the rear wheel shafts. It characterized in that it comprises a power transmission means for interlocking the rotation of the rear wheel.

The power transmission means is rotated concentrically with a drive shaft gear connected to the drive shaft, a rear wheel side gear connected to the rear wheel shaft, a first gear portion engaged with the rear wheel gear, and the first gear portion. And an interlocking gear composed of a second gear portion engaged with the driving shaft.

In addition, the first gear portion is formed to have a larger diameter than the second gear portion, and the rear wheel side gear has a smaller diameter than the second gear portion.

In addition, a one-way bearing is provided between the rear wheel gear and the rear wheel shaft, and the rear wheel shaft and the rear wheel connected thereto receive a rotational force only in one direction from the rear wheel gear.

In addition, the left and right scaffolding is provided with a guide bar, the left and right rotary link is provided with a guide roller guided by the guide bar, the guide roller is rolling along the guide bar.

In addition, the total length of the left and right rotary links in the state in which the left and right footholds are completely open to each other is equal to the position of the guide bar provided in the left and right footrests, respectively, and the length of the extension line passing through the driving shaft. It is formed, the guide bar provided on the left and right scaffold is formed along a curved path.

In addition, upper and lower edges of the left and right footrests are provided to protrude the support jaw to prevent the foot from being separated.

At this time, the power transmission means is wrapped by a fixed bracket provided in the frame, at least a portion of the fixed bracket and the support shaft and the left and right footrest is wrapped by a housing, the left and right footrest is the support shaft Hingedly connected to the left and right rotary link and the footrest link portion connected between the left and right footrests are provided so that the length thereof is variable, and the left and right footrests are movable in a predetermined range in a direction orthogonal to the lifting direction. .

Hereinafter, an embodiment of a manual scooter according to the present invention will be described in more detail with reference to the accompanying drawings.

본 발명의 구성Configuration of the Invention

The frame 10 of the skeleton of the manual scooter according to the present invention is formed. The frame 10 forms a skeleton of a manual scooter as shown, and is made of a metal material extending in a predetermined direction.

The frame 10 is provided with a front wheel 20 and a rear wheel 30, respectively. The front wheels 20 and the rear wheels 30 are wheels for allowing the manual scooter to move, and are spaced apart from each other along the longitudinal direction of the frame 10.

At this time, the handle 21 is connected to the front wheel 20, it is a structure capable of steering by the handle (21). That is, when the driver manipulates the handle 21, the direction of the front wheel 20 is changed to change the direction of the manual scooter.

The rear wheel 30 is rotated with the rear wheel shaft 31 as the center of rotation. As shown in FIG. 2, the rear wheel shaft 31 is installed across the frame 10, and the rear wheel 30 is integrally coupled to the rear wheel shaft 31 so that the rear wheel is rotated according to the rotation of the rear wheel shaft 31. 30 are rotated together.

The frame 10 is provided with a drive shaft 40 spaced apart from the rear wheel shaft 31. The drive shaft 40 is a kind of rotary shaft which is installed at a position spaced apart from the rear wheel shaft 31 in the direction of the front wheel 20, and the left rotary link 70 and the right rotary link 80 (hereinafter " The left and right rotary links ".

The frame 10 has a fixing bracket 50 is installed. One side of the fixing bracket 50 is fixed to the frame 10 adjacent to the driving shaft 40, and the other side of the fixing bracket 50 is installed at the rear wheel shaft 31. The fixing bracket 50 is installed vertically in a plate shape, and can withstand loads and moments transmitted vertically during driving, which is excellent in durability and can reduce weight.

And, as shown in Figure 2, between the fixing bracket 50 is provided with a power transmission means to be described below also serves to wrap them.

A support shaft 60 is installed at the rear of the fixing bracket 50 or a portion extending rearward from the frame 10. The support shaft 60 is a portion that becomes the center of rotation of the left footrest 90 and the right footrest 100 (hereinafter, referred to as "left and right footrest") to be described below, and is relatively more than the rear wheel shaft 31. It is located in the rear.

And, the support shaft 60 is provided with a connecting member 61, the connecting member 61 is connected between the support shaft 60 and the left and right footrest (90,100), the left and right footrest ( 90, 100) will be rotated with.

On the other hand, the drive shaft 40 is provided with left and right rotary links (70, 80). The left and right

rotary links

70 and 80 are for transmitting the rotational movement of the left and

right footrests

90 and 100 to the power transmission means to be described below.

Specifically, one end of the left and right rotary link (70, 80) is fitted to both sides of the drive shaft 40, the drive link (71, 81) is coupled, the other end footrest link (72, 82) Is provided. In addition, the

guide rollers

73 and 83 are rotatably provided at both side foot link links 72 and 82, respectively.

Both sides of the support shaft 60 are provided with left and

right scaffolds

90 and 100, respectively. The left and

right footrests

90 and 100 generate rotational force while being lifted in opposite directions with respect to the support shaft 60, and are transmitted to the left and right rotary links 70 and 80, resulting in rear wheels 30. ) Is rotated.

More precisely, the left and right scaffold (90,100) is installed to have a position opposite to each other, if any one of the left and right scaffold (90,100) ascends the other one, and if one descends, the other rises Done.

The left and

right footrest

90, 100 is preferably made of a metal or light aluminum material, the upper surface, as shown in Figure 2, the embossing is formed to be in close contact with the bottom of the shoe of the user.

In addition,

support jaws

91 and 101 are formed along the upper inner surfaces of the left and

right scaffolds

90 and 100 to prevent the foot from being separated during the pressing operation of the left and

right scaffolds

90 and 100.

Guide bars 92 and 102 are provided on the bottoms of the left and

right scaffolds

90 and 100. The guide bars 92 and 102 serve to guide the forward and backward movement of the

guide rollers

73 and 83 provided in the left and right rotary links 70 and 80, and the

guide rollers

73 and 83 guide the guide bars. By moving a predetermined distance along the line (92, 102), as a result, the left and right rotary links (70, 80) can be rotated.

In addition,

guide plates

93 and 103 are provided on the bottoms of the left and

right foot plates

90 and 100, and the

guide rollers

73 and 83 are substantially in contact with the

guide plates

93 and 103 to be clouded.

As such, the

guide rollers

73 and 83 of the

footrest link portions

72 and 82 are advanced back and forth along the guide bars 92 and 102, and the

guide rollers

73 and 83 roll along the

guide plates

93 and 103. The movement of the left and right rotary link 80 is induced naturally.

Next, the power transmission means will be described, the power transmission means is largely composed of a drive shaft gear 112, the rear wheel gear 111, and the interlocking gear (110).

The rear wheel side gear 111 is connected to the rear wheel shaft 31 and rotates together with the rear wheel shaft 31. That is, when the rotational movement of the left and

right footrests

90 and 100 is transmitted to the rear wheel gear 111, the rear wheel gear 111 rotates the rear wheel shaft 31, and as a result, the rear wheel 30 rotates. do.

At this time, a one-way bearing B is provided between the rear wheel gear 111 and the rear wheel shaft 31. The one-way bearing (B) is a component that transmits rotational force in only one direction and does not transmit rotational force in the opposite direction, and the rear wheel gear 111 has a rotational force in a direction in which the rear wheels 30 advance. This is transmitted to the rear wheel shaft 31, but not to the opposite direction.

On the other hand, the drive shaft gear 112 is connected to the drive shaft 40 is rotated integrally with the drive shaft 40, it is rotated together with the left and right rotary links (70, 80).

An interlocking gear 110 is provided between the drive shaft gear 112 and the rear wheel side gear 111. The interlocking gear 110 serves as a medium for connecting the drive shaft gear 112 and the rear wheel side gear 111. The interlocking gear 110 rotates concentrically with the first gear part 114 engaged with the rear wheel side gear 111 and the first gear part 114, and engages with the drive shaft 40. It consists of a gear part 115.

In this case, the first gear part 114 is formed to have a larger diameter than the second gear part 115, and the rear wheel side gear 111 has a smaller diameter than the second gear part 115, The rotation of the drive shaft gear 112 is transmitted to the rear wheel gear 111 in an amplified state.

More precisely, the radii of the drive shaft gear 112, the second gear portion 115, the first gear portion 114, and the rear wheel side gear 111 are respectively R1 to R4, and the respective rotation speeds are Speaking of N1-N4,

,

Where N2 = N3, consequently

to be. Accordingly, when R1 and R4 are made small and R2 and R3 are made large, the rotation speed of the rear wheel 30 can be greatly amplified.

The frame 10 is provided with a housing 120. The housing 120 surrounds at least a portion of the frame 10 and the rear wheel 30 and the power transmission means to shield them.

As shown in FIG. 3, the brake means 150 is connected to the rear wheel 30, and the brake means 150 is connected to the handle 21 by a connecting line 151. Since the structure thereof is the same as the brake provided in a general scooter or bicycle, a detailed description thereof will be omitted.

Meanwhile, as shown in FIG. 9, a rotation member 62 is further provided between the connection member 61 and the left and

right foot plates

90 and 100, and the rotation member 62 is connected to the left and

right foot plates

90 and 100. By allowing the member 61 to be hinged, the left and

right scaffolds

90 and 100 may be rotated in a left and right direction in a direction orthogonal to the lifting direction, that is, in FIG. 9.

At this time, the left and right rotary link (70, 80) and the footrest link portion (72, 82) connected between the left and right footrest (90,100) should be provided so that the length thereof is variable.

Accordingly, the driver can adjust the gap between the

footrests

90 and 100 according to their stride length.

On the other hand, as shown in Figure 7 and 8, in the state in which the left and right footrest (90,100) completely open each other, the overall length of the left and right rotary link (70,80) is to the left and right footrest (90,100) Each of the guide bars 92 and 102 provided may correspond to a position corresponding to each other and the length of an extension line passing through the driving shaft 40.

This is to allow the left and right rotary links 70 and 80 to be completely rotated in the repeated reciprocating process of the left and

right scaffolds

90 and 100. That is, in the elevation process of the left and right scaffold (90, 100), the left and right rotary link (70, 80) is continuously rotated in the clockwise direction. This is a different part from the left and right rotary links 70 and 80 in the embodiment shown in FIGS.

In this case, the guide bars 92 and 102 provided on the left and

right foot plates

90 and 100 are formed along a curved path, so that the left and right rotary links 70 and 80 can be more smoothly rotated.

In this case, the one-way bearing B may not be provided between the rear wheel side gear 111 and the rear wheel shaft 31.

본 발명의 동작Operation of the Invention

Hereinafter, an operation process of the present invention will be described with reference to the embodiments illustrated in FIGS. 4 and 5.

First, the driver grips the handle 21 in a state where the driver climbs the left and

right footrests

90 and 100. In this state, if the driver puts weight on the footrest in the lifted state among the left and

right footholds

90 and 100, the raised footrest descends.

Referring to FIG. 4, when the left foot plate 90 descends (arrow P direction), the guide rollers 73 of the left rotary link 70 are guided along the guide bar 92 and the guide plate 93. At the same time, the left rotary link 70 is rotated clockwise (arrow ① direction).

In response thereto, the second gear part 115 of the interlocking gear 110 engaged with the drive shaft gear 112 is rotated counterclockwise (arrow ② direction), and is engaged with the first gear part 114. 111 is rotated clockwise again (arrow ③ direction).

As a result, the rear wheel 30 is advanced while being rotated clockwise.

At the same time, the right footrest 100 is lifted about the support shaft 60, wherein the right rotational foot 80 of the right footrest 100 is guided along the guide bar 102 and the guide plate 103. As the guide roller 83 is advanced, the rise of the right footrest 100 is induced.

In this state, when the driver presses the right footrest 100 again raised (arrow P ′), as shown in FIG. 5, along the guide bar 102 and the guide plate 103 of the right footrest 100. The guide roller 83 of the right rotary link 80 is reversed so that the right rotary link 80 is rotated counterclockwise.

The second gear part 115 engaged with the drive shaft gear 112 is rotated in a clockwise direction (arrow ② 'direction), and the rear wheel side gear 111 half engaged with the first gear part 114 at the same time. Rotate clockwise (arrow ③ 'direction).

However, at this time, the one-way bearing (B) provided between the rear wheel gear 111 and the rear wheel shaft 31 is idle, so that the rotational force of the rear wheel gear 111 is not transmitted to the rear wheel shaft (31). Thus, the rear wheel 30 is prevented from rotating in the reverse direction.

As the above process is repeated, the rear wheel 30 is advanced, and in particular, if the R1 and R4 are smaller, and the larger the R2 and R3, as in the salping bar, the rear wheel 30 is small even if the rotation angle of the left and

right footrests

90 and 100 is small. You can increase the number of revolutions.

Accordingly, since the force for pressing the left and

right footrests

90 and 100 also increases, the amount of exercise of the driver can be increased.

In the above embodiment, the driver steps on one end of the left and

right footrests

90 and 100 extending in the front wheel 20 direction so that the center of gravity is moved forward, which corresponds to the driving direction of the manual scooter. Also makes operation easier.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

The present invention relates to a passive scooter, and improves the structure of the scooter to reduce the workability, manufacturing cost and at the same time the structure of the manual scooter that can improve the running and exercise.

Claims

In a manual scooter that generates a driving force by lifting the two steps in the opposite direction,

A frame forming a skeleton of the manual scooter,

A front wheel and a rear wheel which are rotatably spaced apart from each other in the front and rear of the frame,

The rear wheel shaft, which is the center of rotation of the rear wheel, is provided in pairs at both ends of the drive shaft rotatably provided in the frame and spaced apart from the rear wheel in a predetermined distance, and each end thereof is connected to the drive shaft and rotated together with the drive shaft. Left and right rotary links,

It is provided in pairs on both sides of the frame, the other end of the left and right rotary link is connected to each other to guide the rotation of the left and right rotary link, each end of each of the support shafts across the frame Left and right footrests connected to each other and rotatably installed in opposite directions and extending toward the front wheels;

And a power transmission means connecting the left and right rotary links connected to the left and right footrests and the rear wheel shaft to interlock rotation of the left and right footrests and the rear wheels.
The method of claim 1, wherein the power transmission means

A drive shaft gear connected to the drive shaft;

A rear wheel gear connected to the rear wheel shaft,

And an interlocking gear composed of a first gear part engaged with the rear wheel shaft gear, and a second gear part concentric with the first gear part and engaged with the drive shaft ear.
The manual scooter of claim 1, wherein the first gear portion has a larger diameter than the second gear portion, and the rear wheel side gear has a smaller diameter than the second gear portion.
According to any one of claims 1 to 3, wherein the one-way bearing is provided between the rear wheel gear and the rear wheel shaft, the rear wheel shaft and the rear wheel connected thereto receives a rotational force in one direction only from the rear wheel gear. Manual scooter characterized in that.
The manual scooter of claim 4, wherein the left and right scaffolds are provided with guide bars, and the left and right rotary links are provided with guide rollers guided by the guide bars, and the guide rollers are rolling along the guide bars. .
The guide bar according to any one of claims 1 to 3, wherein the entire lengths of the left and right rotary links correspond to each other of the guide bars provided on the left and right scaffolds with the left and right scaffolds completely open to each other. And a length of an extension line passing through the driving shaft, wherein the left and right rotary links are rotatable continuously in one direction.
The manual scooter of claim 6, wherein the guide bar provided on the left and right footrests is formed along a curved path.
The manual scooter of claim 1, wherein the upper and lower edges of the left and right footrests protrude from the support jaw to prevent the foot from being separated.
The manual scooter of claim 1, wherein the power transmission unit is surrounded by a fixing bracket provided in the frame, and at least a portion of the fixing bracket and the support shaft and the left and right footrests are wrapped by a housing.
According to claim 1, wherein the left and right footrest is hingedly connected to the support shaft, the footrest link portion connected between the left and right rotary link and the left and right footrest is provided so that the length thereof is variable, The right footrest is a manual scooter, characterized in that movable in a certain range in a direction orthogonal to the lifting direction.