KR102358414B1 - Reverse three-wheeled vehicle with tilting suppression - Google Patents

Abstract

The present invention is to provide a moving means that can not only travel stably by tilting a tilting body left and right in response to centrifugal force generated during corner driving, but also maintain a good center of gravity when traveling straight and when stopping. To this end, according to the present invention, provided is a reverse three-wheeled moving means comprising: a handle control unit including a handle frame and a handle; a tilting body including a tilting frame and a footrest part coupled to the tilting frame and a rear wheel coupled to the other end of the tilting frame; a support body including a support frame and a front wheel coupled to both ends of the support frame and configured to rotate when the handle control unit is rotated left and right; a moving unit configured to be movable in the vertical direction by being coupled to the tilting frame, or configured to have one end coupled to a part of the tilting frame and the other end to be rotatable in the vertical direction; a connecting member configured as a pair, one end coupled to a part of the support frame, and the other end coupled to the moving unit, respectively; and an elastic member configured to pull the moving unit upward or to push the moving unit upward.

Description

Reverse three-wheeled vehicle with tilting suppression

The present invention relates to a moving means, and more particularly, to a moving means that is tilted during corner driving so that safe corner driving is possible, and tilting is suppressed when driving straight, so that it is easy to center.

In general, the means of transport refers to a mechanism for moving a passenger or loading various articles, and may include a bicycle or a scooter. Such a moving means is composed of two wheels and three wheels.

Existing two-wheeled vehicles have the inconvenience of having to hold the center of gravity when driving in a straight line, and three-wheeled vehicles that cannot tilt do not need to be centered when driving, but there is a risk of overturning when driving in a corner. Therefore, there is a need to develop a transportation means that can easily hold the center of gravity when driving straight and can be tilted when driving in a corner, enabling safe corner driving.

The present invention has been devised to solve the problems of the related art as described above, and an object of the present invention is to provide a moving means that is tilted when driving a corner so that safe driving is possible and easy to center when driving straight.

Problems to be solved by the present invention are not limited thereto, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention provides a handle operation unit including a handle frame extending vertically and a handle provided on the top of the handle frame; a tilting body comprising a tilting frame coupled to the handle frame, a footrest coupled to the tilting frame, and a rear wheel coupled to a rear end of the tilting frame; a support body having a center portion coupled to the lower end of the handle frame and both ends including a support frame extending to both sides and front wheels coupled to both ends of the support frame; It is coupled to the tilting frame portion located above the support frame and configured to be movable in the vertical direction, or one end or an intermediate portion is coupled to the tilting frame portion located above the support frame and the other end is configured to be rotatable in the vertical direction. wealth; a connecting member configured as a pair and having one end coupled to the support frame portion located on both sides of the central axis of rotation of the handle manipulation unit and the other end coupled to the moving unit, respectively; And one end is coupled to the moving part, the other end is coupled to the tilting frame, or one end is configured to be caught by the moving part and the other end is configured to be caught by the tilting frame so that the moving part to which the connecting member is coupled is moved upward an elastic member providing an elastic force; The moving part to which the connecting member is coupled is moved toward the support body when the handle manipulation part and the tilting body are inclined laterally, and when the tilted handle manipulation part and the tilting body are erected, the elasticity It is characterized in that it moves upward by the elastic force of the member.

In addition, the connection member coupled to the moving part in a state where the handle operation part and the tilting body are not inclined laterally is characterized in that it is configured to be vertically upward from the rotation center of the support body.

In addition, if the connection member coupled to the moving part is not positioned vertically upward from the center of rotation of the support body in a state in which the handle manipulation unit and the tilting body are not inclined laterally, the moving part when the handle manipulation unit is rotated left and right It is characterized in that it is moved toward the support frame.

In addition, the elastic force of the elastic member acts as a force for suppressing the lateral inclination of the handle operation part and the tilting body, and the magnitude of the force for suppressing the inclination of the handle operation part and the tilting body varies when the handle operation part is rotated left and right characterized.

In addition, the tilting frame includes a first tilting frame coupled to the handle frame, a second tilting frame extending rearward from the first tilting frame, and a hole penetrating up and down at the front end while coupled to the front portion of the first tilting frame. Consists of a coupling part provided, the moving part is configured to be movable up and down by fitting the middle part into the hole provided in the coupling part, and the elastic member has one end coupled to the upper end of the moving part and the other end is above the moving part It characterized in that it is composed of a tensile elastic member coupled to the first tilting frame portion located in the.

In addition, the tilting frame includes a first tilting frame coupled to the handle frame, a second tilting frame extending rearward from the first tilting frame, and a hole coupled to the front of the first tilting frame and penetrating up and down at the front end. Composed of a coupling part provided, the moving part is configured to be movable up and down by fitting an intermediate part to the hole provided in the coupling part, and the elastic member is extrapolatedly coupled to the moving part located above the coupling part. It is composed of an elastic member, the lower end of the elastic member is configured to be caught by the coupling part, and the upper end of the elastic member is configured to be caught by the upper part of the moving part.

In addition, the tilting frame is composed of a first tilting frame coupled to the handle frame and a second tilting frame extending rearward from the first tilting frame, or a first tilting frame coupled to the handle frame and the first tilting frame is composed of a second tilting frame extending rearward from the second tilting frame and a coupling part protruding rearward from a lower or middle portion of the first tilting frame, and the moving part rotates in the vertical direction while one end is coupled to the tilting frame and the other end is extended forward Possibly configured, the elastic member is characterized in that one end is coupled to the middle portion or the other end of the moving unit and the other end is composed of a tensile elastic member coupled to the first tilting frame portion located above the moving unit.

According to an embodiment of the present invention, the reverse three-wheeled moving means is tilted when driving a corner, so that safe corner driving is possible and it is easy to center when driving straight.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a side view of a reverse three-wheeled moving means according to a first embodiment of the present invention.
2A is a cross-sectional view of a main part when the handle operation unit does not rotate left and right in the first embodiment of the present invention.
2, b and d are explanatory views for explaining that when the handle operation unit is rotated left and right in the first embodiment of the present invention, the support frame point is rotated while twisting at the connection member portion close to the moving point point.
2C is a cross-sectional view of a main part when the handle operation unit rotates left and right in the first embodiment of the present invention.
3A and 3B are explanatory views for explaining a case in which the moving point is configured to be located on both sides of the vertical extension line in the first embodiment of the present invention.
3, c and d are explanatory views for explaining a case in which the moving point is configured to be located in front of the vertical extension line in the first embodiment of the present invention.
3e is an explanatory view for explaining that the support frame point is moved when the handle operation part is rotated left and right in the first embodiment of the present invention.
4A is a front view of the main part when the handle operation part and the tilting body are not inclined laterally in the first embodiment of the present invention.
4B is a front view of the main part when the handle operation part and the tilting body are inclined to the side in the first embodiment of the present invention.
5 is a side view of a reverse three-wheeled moving means according to a second embodiment of the present invention.
6A is a front view of the main part when the handle operation part and the tilting body are not inclined laterally in the second embodiment of the present invention.
6, b is a front view of the main part when the handle operation part and the tilting body are inclined to the side in the second embodiment of the present invention.
7 is a side view of the reverse three-wheeled moving means when the handle control unit and the tilting body are not inclined to the left or right in the third embodiment of the present invention.
8 is a side view of the reverse three-wheeled moving means when the handle operation part and the tilting body are inclined to the side in the third embodiment of the present invention.
9A is a front view of the main part when the handle operation part and the tilting body are not tilted from side to side in the third embodiment of the present invention.
9, b is a front view of the main part when the handle operation part and the tilting body are inclined to the side in the third embodiment of the present invention.
10 is a side view of the reverse three-wheeled moving means in which the middle portion of the moving part is coupled to the first tilting frame in the third embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is formed between each component. It should be understood that elements may also be “connected,” “coupled,” or “connected.”

Prior to the description of the embodiments of the present disclosure, the reverse three-wheeled moving means may include a reverse three-wheeled bicycle, a reverse three-wheeled kickboard, and a reverse three-wheeled scooter. Here, a reverse three-wheeled scooter is taken as an example.

1 to 10 , the reverse three-wheeled moving means according to an embodiment of the present invention includes a handle operation unit 10 , a tilting body 50 , a support body 20 , a moving unit 30 , and a connection member 70 . ) and an elastic member 40 may be included.

In the embodiment of the present invention, the handle operation unit 10 is composed of a handle 11 and a handle frame 12 .

The steering wheel control unit 10 is a tilting body in order to be able to respond to a steering operation of rotating the front wheel 22 to the left and right and a centrifugal force generated when driving a corner when a user rides a reverse three-wheeled moving means and drives a corner. The tilting (tilting) operation of (50) is configured to be possible.

In the embodiment of the present invention, the handle 11 is configured to extend left and right so that the user can grip it.

In the embodiment of the present invention, the handle frame 12 has one end coupled to the middle portion of the handle 11, the other end extending downward, and the lower portion passing through the first tilting frame 52 to be described later to the first tilting frame 52 . It is configured to protrude downward.

The handle frame 12 located below the first tilting frame 52 is configured to be spread forward and backward, and holes penetrating back and forth are provided in the front and rear portions so that the support frame 21 to be described later can be coupled thereto.

In the embodiment of the present invention, the tilting body 50 is configured to include a tilting frame 51, a saddle part 60, a footrest part 56 and a rear wheel 55, and the handle operation part 10 is inclined to the side. When the handle is configured to be inclined like the control unit (10).

In the embodiment of the present invention, the tilting frame 51 includes a first tilting frame 52 , a second tilting frame 53 , and a coupling unit 54 .

In the embodiment of the present invention, the first tilting frame 52 is extrapolatedly coupled to the middle portion and the lower portion of the handle frame 12 so that the handle operation unit 10 is rotatably configured. And a coupling bar 57 is included in the first tilting frame 52 .

The coupling bar 57 is configured to extend from the portion of the first tilting frame 52 located above the coupling portion 54 to be described later to the vertical extension line p to be described later.

In the embodiment of the present invention, one end of the second tilting frame 53 is coupled to the upper portion of the first tilting frame 52 and the other end extends between the rear and the lower side. And the rear side of the second tilting frame 53 is configured to open to the sides so that the rear wheel 55 can be fitted.

In the embodiment of the present invention, the coupling part 54 protrudes slightly forward from the front part of the first tilting frame 52 located above the support frame 21 and a hole penetrating vertically is provided at the protruding front end.

The hole is configured to be located in a vertical extension line (s) to be described later.

In the embodiment of the present invention, the saddle part 60 is configured to include a saddle frame 61 and a saddle 62, but when the present technology is applied to a kickboard, the saddle part is not provided.

In the embodiment of the present invention, one end of the saddle frame 61 is fixedly coupled to the middle portion of the second tilting frame 53 and the other end extends upward.

In the embodiment of the present invention, the saddle 62 is configured to have the same shape as a general bicycle saddle and is fixedly coupled to the top of the saddle frame 61 .

In the embodiment of the present invention, one rear wheel 55 is provided and fitted between the rear gaping portions of the second tilting frame 53 and coupled to the other end of the second tilting frame 53 . In more detail, the rear wheel 55 may be coupled to the other end of the second tilting frame 53 through a central axis and configured to be rotatable. Here, the rear wheel 55 may be coupled to the rear wheel 55 by an electric motor receiving power from a battery rather than being driven by manpower.

In the embodiment of the present invention, the footrest portion 56 extends downward from the middle portion of the second tilting frame 53, then slightly extends from the lower end to both sides, and the portion extending to both sides has a flat upper portion, so that the occupant It is designed to be able to put your feet on it.

In an embodiment of the present invention, the support body 20 is configured to include a support frame 21 and a front wheel 22, and is configured to rotate like the handle control unit 10 when the handle control unit 10 rotates left and right. .

In the embodiment of the present invention, the support frame 21 is provided with a hole through the front and back in the middle portion, both ends are configured so that the front wheel 22 to be described later can be coupled. After inserting the part of the support frame 21 where the hole is located between the cracks at the bottom of the handle frame 12, insert a pin into the hole provided at the bottom of the handle frame 12 and the hole provided in the support frame 21 to support the handle frame 12 The frame 21 is coupled, and both ends of the support frame are configured to be rotatable up and down while extending to both sides.

In a state where the handle operation part 10 is not rotated left and right and the tilting body 50 is not tilted to the side, a straight line drawn from the front of the hole in the support frame 21 and the rear of the hole is a straight line extending backward (o) It is configured to be positioned at the center of the left and right standards, and is configured to be positioned at a position slightly lowered from the rear wheel 55 in contact with the ground on a vertical basis.

A portion of the support frame 21 coupled to the handle frame 12 is configured to be positioned on the central axis of rotation p of the handle operation unit 10 .

In the embodiment of the present invention, the front wheel 22 is fitted to both ends of the support frame 21 to be rotatably configured, and when the handle control unit 10 is rotated left and right, it is rotated like the support frame 21 so that the steering is composed to be done. And the front wheel 22 and the support frame 21 are configured not to be inclined laterally.

In the embodiment of the present invention, the moving unit 30 is composed of a moving body 31 and a ring unit 32 .

In an embodiment of the present invention, the movable body 31 is configured to be movable in the vertical direction by being fitted with a middle portion in a hole provided in the coupling portion 54, and the upper and lower portions of the coupling portion 54 protrude upward and downward. is composed The upper portion of the movable body 31 is configured in a hook shape so that an elastic member 40 to be described later can be caught. A hole is provided in the lower part of the movable body 31 from the lower part, and a female screw is provided in the hole so that the ring part 32 to be described later can be coupled thereto.

In the embodiment of the present invention, the ring portion 32 is configured to be coupled to the lower portion of the movable body 31, and the lower portion is provided with a hole through which the connecting member 70 to be described later can be coupled thereto, and the upper portion is provided with the movable body ( 31) is provided with a male screw.

By fitting the movable body 31 into the hole provided in the coupling part 54, the movable part 30 is configured to be movable in the vertical direction, and by coupling the ring part 32 to the lower end of the movable body 31, the coupling part ( 54) is configured so that the moving part 30 does not fall out.

The other end of the connecting member 70, which will be described later, is coupled to the lower end of the ring part 32 (hereinafter, the moving part 30 to which the connecting member 70 is coupled is referred to as a moving part point (r)), and the handle operation part 10 and When the tilting body 50 is tilted to the side, the movable part 30 is moved downward, and when the handle operation part 10 and the tilting body 50 are erected, the elastic member 40 to be described later moves the movable part 30 by the elastic force. is configured to move upward.

The moving part point (r) rotates the handle operation unit 10 to the left and right so that when the support body 20 is rotated, the support body 20 is the center of rotation vertically upward (hereinafter when the support body 20 is rotated) An imaginary straight line extending vertically upward from the center of rotation of the support body 20 is configured to be located in a vertical extension line (s)).

When the support frame 21 is coupled to the handle frame 12 located on the central axis of rotation of the handle control unit p, the vertical extension line s extends vertically upward from the handle frame 12 to which the support frame 21 is coupled. located on a straight line Therefore, the moving part point (r) is located in front of the central axis of rotation of the handle operation unit (p).

In the embodiment of the present invention, the connecting member 70 is configured as a pair. One end of both connecting members is located on the support frame 21 located on both sides of the handle operation unit rotational central axis p (hereinafter, the support frame 21 portion to which the connecting member 70 is coupled is referred to as the support frame point q). Each is coupled, and the other end is coupled to the lower end of the moving unit 30, respectively.

The length from the central axis of rotation of the handle control unit (p) to the point q of both support frames is the same, and the handle control unit 10 and the tilting body 50 are not inclined to the side, and the tensile force is applied to both connecting members 70. This is configured to take

When the connecting member 70 is formed of a non-variable member, the handle manipulation unit 10 and the support body 20 cannot be rotated. Therefore, in order to be able to rotate the handle operation part 10 and the support body 20, the connection member 70 may be composed of a variable member whose shape is changed without increasing the length when an external force is applied. In the example, it is suggested that the connecting member 70 is composed of a dyneema rope.

Since the Dyneima rope has a specific strength 15 times stronger than that of a wire and has flexibility, which is a fiber characteristic, when the handle control unit 10 is rotated left and right, it is bent along the direction in which the support body 20 is rotated.

In the embodiment of the present invention, the elastic member 40 is configured to pull the connecting member 70 toward the first tilting frame 52. In the first embodiment of the present invention, the elastic member 40 is a tension spring which is a type of tension elastic member. is composed of

One end of the elastic member 40 is coupled to the upper end of the moving unit 30 and the other end is coupled to the front end of the coupling bar 57 to pull the moving unit 30 toward the coupling bar 57 .

As shown in b in FIG. 4, the elastic member 40 is configured to stretch when the moving part 30 is moved toward the support frame 21, and when the handle manipulation part 10 and the tilting body 50 are erected, the moving part 30 is moved. It is configured to pull toward the coupling bar (57). And in a state in which the handle operation part 10 and the tilting body 50 are not inclined laterally, the moving part 30 is pulled toward the coupling bar 57 to suppress the inclination of the handle operation part 10 and the tilting body 50 do.

2, when the moving part point (r) is configured to be located on the vertical extension line (s), between the moving part point (r) and the support frame point (q) when the handle manipulation unit 10 rotates left and right Since the interval does not change, the moving unit 30 does not move downward. Therefore, the resistance in rotating the handle operation unit 10 left and right is very small, so that the handle operation unit 10 can be rotated smoothly.

Referring to FIG. 4 , when the handle operation unit 10 and the tilting body 50 are inclined to the left or right, the interval between the support frame point q and the moving point r located on the inclined side is narrowed, and the The gap between the support frame point (q) and the moving point (r) located on the opposite side is widened. Since the moving part point (r) and the support frame point (q) are connected by a connecting member (70), when the distance between the moving part point (r) and the support frame point (q) is widened, the connecting member (70) is a moving part By pulling (30), the moving part 30 is moved downward, and the elastic member 40 is stretched. The elastic force of the elastic member 40 suppresses the movement of the moving unit 30 toward the support frame 21 , thereby suppressing the lateral inclination of the handle operation unit 10 and the tilting body 50 .

As described above, the moving part 30 and the tilting frame 51 are connected with the elastic member 40, and the moving part 30 and the supporting frame 21 are connected with the connecting member 70 with the handle operation part 10 and the tilting member. The body 50 is configured to be able to suppress the inclination to the side.

The moving part point (r) is most preferably configured to be located on the vertical extension line (s) as shown in FIG. 2, but as shown in a and b in FIG. may be

That is, the moving part point (r) is configured to be located on the vertical extension line (s) when viewed from the side, and is configured to be located at a point slightly away from the vertical extension line (s) on both sides when viewed from the front. And the length from the vertical extension line (s) to both moving parts (r) is configured to be the same.

When the moving part point (r) is configured to be located at a point slightly away from the vertical extension line (s) on both sides, when the handle control unit 10 is rotated left and right when viewed from above as shown in FIG. q) is rotated about the vertical extension line (s) as a central axis, and one end of the connecting member 70 is rotated about the moving part point (r) as a central axis. Accordingly, as the handle operation unit 10 rotates left and right, the length from the moving point r to one end of the connecting member 70 becomes shorter than the length from the moving point r to the support frame point q. And since the connecting member 70 does not stretch, as the handle operation part 10 rotates left and right, the movable part 30 moves downward, and the length and the movable part point ( The length from r) to one end of the connecting member 70 becomes equal to each other.

As described above, when the moving part point (r) is configured to be located at a point slightly away from the vertical extension line (s) on both sides, as the handle manipulation part 10 is rotated left and right, the moving part 30 is moved downward little by little. Although the elastic member 40 increases little by little, when the handle operation unit 10 is rotated left and right, the resistance is small, so the moving part point r may be configured to be located at a point slightly away from the vertical extension line s on both sides. .

When the location of the moving point (r) is moved a lot from the vertical extension line (s) to both sides. When the handle operation part 10 is rotated left and right, the moving part 30 moves downward a lot, and the elastic member 40 is stretched a lot. Therefore, since it is difficult to rotate the handle operation unit 10 to the left and right, it is not preferable to move the moving part point (r) a lot in both sides in the vertical extension line (s).

3, when the moving part point (r) is configured to be located at the front or rear in the vertical extension line (s) as seen from above c and d, when the handle manipulation unit 10 is rotated to the left or right, the moving part point ( The length from r) to the support frame point (q) located on the left and the length from the moving part point (r) to the support frame point (q) located on the right side are different from each other. Therefore, when the handle operating unit 10 is rotated left and right, the handle operating unit 10 and the tilting body 50 are inclined to the side, so that the moving part point (r) is located in the front or rear in the vertical extension line (s). Not desirable.

As the support frame point q is moved laterally from the vertical extension line s, the elastic member 40 is stretched a lot when the handle control unit 10 and the tilting body 50 are inclined laterally. Therefore, as the support frame point (q) is moved laterally from the vertical extension line (s), the force for suppressing the inclination of the handle operation unit 10 and the tilting body 50 becomes stronger.

Referring to FIG. 3 e, when the handle operating unit 10 is rotated, the support frame point q rotates along the handle operating unit 10, so when the handle operating unit 10 is rotated, the handle operating unit 10 and the tilting body The magnitude of the force that suppresses the tilt will be different. In other words

When the handle operation unit 10 is rotated, the support frame point (q) is moved to the left and right, so that the magnitude of the force for suppressing the inclination of the handle operation unit 10 and the tilting body is changed. Therefore, in order to reduce the variation in the interval at which the support frame point (q) moves left and right when rotating the handle operation unit 10, the support frame point (q) is a side view of the state in which the handle operation unit 10 is not rotated left and right. It is configured to be positioned on the central axis of rotation of the handle operation unit (p).

As described above, when the occupant sits on the saddle 62 by connecting the first tilting frame 52 and the support frame 21 with the connecting member 70, the moving part 30 and the elastic member 40, the saddle 62 ), as long as the weight of the occupant is not moved to the side much, the inclination of the handle control unit 10 and the tilting body 50 is suppressed by the tensile force of the elastic member 40, so that the center of gravity can be easily grasped.

In addition, by coupling the connecting member 70 to the portion of the moving unit 30 located on the vertical extension line s, there is an effect that the handle control unit 10 can be rotated to be steered by the front wheel 22 .

second embodiment

5 and 6 show a second embodiment of the present invention. In the second embodiment, the moving part 30, the elastic member 40, and the tilting frame 51 are configured differently from the first embodiment, and the other configuration is the first embodiment. It is configured as in the embodiment.

In the second and third embodiments, descriptions of the same configuration as in the first embodiment are omitted, and only the changed or added configuration will be described.

In the second embodiment of the present invention, the first tilting frame 52 has a structure in which the coupling bar is not provided in the first tilting frame 52 of the first embodiment.

In the second embodiment of the present invention, the coupling portion 54 is configured to protrude slightly forward from the front portion of the first tilting frame 52 and then slightly protrude upward from the front end. And a hole penetrating up and down is provided in the portion protruding upward, and the hole is configured to be located in the vertical extension line (s).

In the second embodiment of the present invention, the moving part 30 is configured to be movable in the vertical direction by being fitted with an intermediate portion in a hole provided in the coupling part 54 , and both ends are upward and downward in the coupling part 54 . is configured to protrude. Among the parts of the moving part 30 , a male screw is provided on the upper part of the coupling part 54 protruding upward, and a pair of nuts 33 coupled to the male screw is included in the moving part 30 . The moving part 30 protruding downward from the coupling part 54 is provided with left and right holes through which the connecting member 70 can be coupled, and the moving part 30 to which the coupling member 70 is coupled is vertical. It is configured to be located on the extension line (s).

In the second embodiment of the present invention, the elastic member 40 is composed of a compression spring, which is a kind of compression elastic member.

The elastic member 40 is extrapolatedly coupled to a portion protruding upward from the coupling part 54 among the moving part 30 parts so that the lower end is caught by the coupling part 54 , and the moving part 30 has an upper end of the elastic member 40 . It is configured to protrude upward. And by coupling a pair of nuts 33 to the portion of the moving part 30 located above the elastic member 40 , the upper end of the elastic member 40 is configured to be caught by the nut 33 .

When the handle operation part 10 and the tilting body 50 are inclined laterally, the moving part 30 moves downward and the elastic member 40 is compressed. And when the inclined handle operation part 10 and the tilting body 50 are erected, the movable part 30 moves upward by the elastic force of the elastic member 40 . Accordingly, the elastic member 40 suppresses the movement of the moving unit 30 downward, thereby suppressing the lateral inclination of the tilting body 50 and the handle operation unit 10 .

The force to suppress the inclination of the handle operation unit 10 and the tilting body 50 is configured to be adjustable by loosening and tightening a pair of nuts 33 .

That is, when the pair of nuts 33 is moved downward, the elastic member 40 is compressed, and the force for suppressing the inclination of the handle operation unit 10 and the tilting body 50 is strengthened, and when the pair of nuts 33 is moved upward, the elastic member 40 is compressed. As the member 40 is stretched, the force for suppressing the inclination of the handle manipulation unit 10 and the tilting body 50 is weakened.

Even when the moving part 30 and the elastic member 40 are configured as in the second embodiment, the inclination of the handle operating part 10 and the tilting body 50 is suppressed as in the first embodiment.

7 to 10 are a third embodiment of the moving part and the elastic member according to the present invention.

In the third embodiment of the present invention, the moving part 30, the elastic member 40, and the tilting frame 51 are configured differently from the first embodiment, and other configurations are configured the same as in the first embodiment. In the description, only the moving part 30, the elastic member 40, and the tilting frame 51 will be described.

In the third embodiment of the present invention, the tilting frame is not provided with a coupling bar.

In the third embodiment of the present invention, the coupling portion 54 protrudes slightly from the middle or lower portion of the first tilting frame 52 located above the support frame 21 and protrudes to either side of the protruding rear end on either side. axis is provided. The shaft is configured so that the moving part 30 can be fitted.

In the third embodiment, the coupling portion may or may not be provided as described above.

That is, the first tilting frame 52 may be coupled to the lower portion of the handle frame 12 , and the moving unit 30 may be coupled to the side of a portion close to the first tilting frame 52 among the second tilting frame 53 . .

In the third embodiment of the present invention, the moving unit 30 has one end fitted to the shaft provided in the coupling unit 54 to be rotatably configured, and the other end is extended to the vertical extension line s when viewed from the side and then bent When viewed from the front, it extends to the vertical extension line (s). Among the parts of the moving part 30, from the part coupled to the coupling part 54 to the bent part is configured to be located on the side of the first tilting frame 52, and when the moving part 30 is rotated, the moving part 30 is first It is configured not to be caught on the one tilting frame 52 and is configured to move upward little by little from one end to the other. Among the parts of the moving part 30 , the part located on the vertical extension line s is provided with a groove so that the connecting member 70 can be coupled thereto.

In the third embodiment of the present invention, the elastic member 40 is composed of a tensile elastic member.

One end of the elastic member 40 is coupled to the middle portion or the other end of the moving unit 30 and the other end is coupled to the first tilting frame 52 located above the moving unit 30,

An upper part of the other end of the moving part 30 is provided with a hook part 34 having a ring shape so that the elastic member 40 can be caught. And one end of the elastic member 40 is coupled to the hook part 34 , and the other end of the elastic member 40 is coupled to the first tilting frame 52 located above the moving part 30 .

When the elastic member 40 is coupled as described above, when the handle operation part 10 and the tilting body 50 are inclined to the side, the moving part 30 is rotated downward by the pulling force of the connecting member 70 and the elastic member ( 40) will increase. Accordingly, the elastic force of the elastic member 40 acts to inhibit the downward rotation of the moving part 30 and acts as a force to suppress the inclination of the handle operation part 10 and the tilting body 50 .

The moving part 30 may be configured such that one end is coupled to the coupling part 54 and the other end is rotated up and down as described above. It may be configured to be

Referring to FIG. 10 , the first tilting frame 52 is coupled to the lower portion of the handle frame 12 . And the moving part 30 is configured to be rotatable up and down while the middle part is coupled to the coupling part 54 and both ends of the moving part 30 are extended back and forth.

The elastic member 40 is composed of a compression elastic member having one end coupled to the rear end of the moving unit 30 and the other end coupled to the second tilting frame 53 located above the moving unit 30 .

When the middle portion of the moving unit 30 is coupled as described above, the elastic member 40 is compressed when the front end of the moving unit 30 is moved downward. Therefore, the elastic force of the elastic member 40 suppresses the downward rotation of the front end of the moving part 30 to suppress the inclination of the handle operation part 10 and the tilting body 50 .

Even if it is configured as in the third embodiment, it is possible to suppress the inclination of the handle manipulation unit 10 and the tilting body 50 as in the first embodiment.

By configuring as described above, the tilting of the tilting body 50 and the handle operation part 10 is suppressed by the elastic force of the elastic member 40, so that it is possible to easily hold the center.

In addition, although the footrest part 56 is connected to the support frame 21, when the handle operation part 10 is rotated left and right, the connection member 70 located in the vertical extension line (s) is twisted to twist the handle operation part 10 It has the effect of being able to steer by turning it left and right.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Accordingly, the disclosed examples of the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments.

The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: handle control unit 11: handle
12: handle frame 20: support body
21: support frame 22: front wheel
30: moving unit 31: moving body
32: hook 33: nut
34: hook portion 40: elastic member
50: tilting body 51: tilting frame
52: first tilting frame 53: second tilting frame
54: coupling part 55: rear wheel
56: footrest 57: coupling bar
60: saddle 61: saddle frame
62: saddle 70: connecting member
p: the central axis of rotation of the handle control unit
q: support frame point r: moving point
s: vertical extension line t: one end position of the connecting member
u: When rotating the handle control unit left and right, the moving path of one end of the connecting member
v : Movement path of the support frame point when the handle control unit is rotated left and right
w : The interval at which the support frame point moves left and right when the handle control unit is rotated left and right

Claims (7)

a handle operation unit comprising a handle frame extending vertically and a handle provided on the upper end of the handle frame;
a tilting body comprising a tilting frame coupled to the handle frame, a footrest coupled to the tilting frame, and a rear wheel coupled to the rear end of the tilting frame;
a support body having a center portion coupled to the lower end of the handle frame and both ends including a support frame extending to both sides and front wheels coupled to both ends of the support frame;
It is coupled to the tilting frame portion located above the support frame and configured to be movable in the vertical direction, or one end or an intermediate portion is coupled to the tilting frame portion located above the support frame and the other end is configured to be rotatable in the vertical direction. wealth;
a connecting member configured as a pair and having one end coupled to the support frame portion located on both sides of the handle control unit rotation center axis, and the other end coupled to the moving unit; and
One end is coupled to the moving part, the other end is coupled to the tilting frame, or one end is configured to be caught by the moving part, and the other end is configured to be caught by the tilting frame, so that the moving part to which the connecting member is coupled is moved upward. An elastic member that provides; Consists of including,
The moving part to which the connecting member is coupled,
Reverse three-wheeled moving means, characterized in that when the handle control unit and the tilting body are tilted to the side, they are moved toward the support body, and when the tilted handle control unit and the tilting body are erected, they are moved upward by the elastic force of the elastic member. The method of claim 1,
Reverse three-wheeled moving means, characterized in that the moving part to which the connecting member is coupled in a state in which the handle operating part and the tilting body are not inclined laterally is positioned vertically upward from the center of rotation of the support body. The method of claim 1,
When the handle operation part and the tilting body are not inclined laterally and the moving part to which the connection member is coupled is not positioned vertically upward from the center of rotation of the support body, the connection when the handle operation part is rotated Reverse three-wheeled moving means, characterized in that the moving part to which the member is coupled is moved toward the support frame. delete The method of claim 1,
The tilting frame includes a first tilting frame coupled to the handle frame, a second tilting frame extending rearward from the first tilting frame, and a hole through the front end while being coupled to the front portion of the first tilting frame. Consists of a joint,
The moving part is configured to be movable up and down by fitting the middle part into the hole provided in the coupling part,
and wherein the elastic member is composed of a tensile elastic member having one end coupled to the upper end of the moving unit and the other end being coupled to the first tilting frame portion located above the moving unit. The method of claim 1,
The tilting frame includes a first tilting frame coupled to the handle frame, a second tilting frame extending rearward from the first tilting frame, and a front portion of the first tilting frame coupled to a front end having a hole penetrating up and down at the front end. Consists of a joint,
The moving part is configured to be movable up and down by fitting an intermediate part into the hole provided in the coupling part,
The elastic member is composed of a compression elastic member extrapolatedly coupled to the moving part located above the coupling part, the lower end of the elastic member is configured to be caught by the coupling part, and the upper end of the elastic member is configured to be hooked to the upper part of the moving part Reverse three-wheeled means of transportation. The method of claim 1,
The tilting frame is composed of a first tilting frame coupled to the handle frame and a second tilting frame extending rearwardly from the first tilting frame, or a first tilting frame coupled to the handle frame and rearward from the first tilting frame. It is composed of a second tilting frame extending to the
The moving part is configured such that one end is coupled to the tilting frame and the other end is rotatable in the vertical direction while extending forward,
and the elastic member comprises a tensile elastic member having one end coupled to the middle portion or the other end of the moving unit and the other end being coupled to the first tilting frame portion located above the moving unit.

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