KR102340947B1 - Module for limiting tilting angle and three-wheeled transportation device including the same - Google Patents

Abstract

An embodiment of the present invention provides a tilting angle limiting module capable of increasing posture stability during straight travel and direction change, and a three-wheeled transportation device including the same. Here, the tilting angle limiting module includes a first base part, a second base part, a rotation center part, a link part, and a pressing part. The second base part is provided adjacent to the first base part and spaced apart from each other. One end of the rotation center portion is rotatably coupled to the upper portion of the first base portion, the other end is fixedly coupled to the upper portion of the second base portion, and forms a central axis on which the second base portion is tilted to the left and right while the first base portion is fixed. The link unit is coupled to the rotation center portion and rotates integrally with the rotation center portion, and has a pair of arms extending to both sides along the radial direction of the rotation center portion. The pressing part is provided on the upper part of the first base part, and while ascending and descending from the upper side of the link part, it contacts or separates from at least one arm of the pair of arms to limit the tilting angle of the second base part.

Description

Tilting angle limiting module and 3-wheel transportation device including the same

The present invention relates to a tilting angle limiting module and a three-wheeled transportation device including the same, and more particularly, to a tilting angle limiting module capable of increasing posture stability when driving in a straight line and changing direction, and a three-wheeled transportation device including the same .

A motorcycle that is currently widely used has been developed in various forms, and an example thereof is a three-wheeled motorcycle.

The three-wheeled motorcycle has a great advantage in terms of weight reduction due to the reduction of wheels and tires, as well as in improving fuel efficiency by reducing rolling resistance.

These three-wheeled motorcycles have an inverted triangle structure with two wheels mounted on the front and one wheel on the rear, and one wheel on the front and two wheels on the rear. There is a three-wheeled motorcycle with a triangular structure mounted on it.

A three-wheeled motorcycle has the advantage of high stability when driving in a straight line because it has a large ground area. However, in a three-wheeled motorcycle, the front wheel is rotated left and right to adjust the movement direction and it is difficult to move the center of gravity in a state where the rear wheel is fixed. There is a problem that there is a risk of overturning during a sharp turn, so improvement is required.

This problem may also appear in a three-wheeled cycle or three-wheeled vehicle.

Republic of Korea Patent Publication No. 2013-0104788 (published on September 25, 2013)

In order to solve the above problems, the technical problem to be achieved by the present invention is to provide a tilting angle limiting module capable of increasing posture stability when driving in a straight line and changing direction, and a three-wheeled transportation device including the same.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical problem, an embodiment of the present invention is a first base portion; a second base unit spaced apart from the first base unit; One end is rotatably coupled to the upper portion of the first base portion, the other end is fixedly coupled to the upper portion of the second base portion, and forms a central axis on which the second base portion is tilted from side to side while the first base portion is fixed. rotation center; a link portion coupled to the rotation center portion to rotate integrally with the rotation center portion, and a link portion having a pair of arms extending to both sides along a radial direction of the rotation center portion; and a pressing part provided on the first base part and ascending and descending from the upper side of the link part to limit the tilting angle of the second base part while contacting or spaced apart from at least one arm of the pair of arms. Restriction module is provided.

In an embodiment of the present invention, the lower end of the link portion is hinged to one arm of the pair of arms, a first support link extending in the vertical direction, and the lower end is connected to the other arm of the pair of arms. A second support link that is hinged and extends in the vertical direction, one end of which is hinged with the first support link, and the other end of a first connection link hinged with the second support link, and the first base. A fixing bar provided on the upper portion of the unit, one end coupled to the fixing member, and the other end may have a second connection link hinged to the first connection link.

In an embodiment of the present invention, the pressing portion is provided to reciprocate in the vertical direction along a guide rail provided in the vertical direction on the upper portion of the first base portion, and the guide rail, the vertical upper side of the first support link A moving block having a first protrusion positioned at a position and a second protrusion positioned at a vertical upper side of the second support link, a driving unit for moving the moving block, and an upper end coupled to a lower portion of the first protrusion, the It may have a first elastic member extending in a direction of the first support link, and a second elastic member having an upper end coupled to a lower portion of the second protrusion and extending in a direction of the second support link.

In an embodiment of the present invention, when the moving block rises above a set height, the lower end of the first elastic member is spaced apart from the upper portion of the first support link, and the lower end of the second elastic member is the second support It may be spaced apart from the top of the link.

In an embodiment of the present invention, when the moving block descends below the set height, the lower end of the first elastic member is in close contact with the upper portion of the first support link, and the lower end of the second elastic member is the second It is closely attached to the upper portion of the support link, and as the moving block descends below the set height, the first elastic pressing force applied downward to the first support link by the first elastic member and the second elastic member The second elastic pressing force applied downward to the second support link may be increased.

In an embodiment of the present invention, the link portion further has a first pressure plate extending in the horizontal direction to the upper end of the first support link, and a second pressure plate extending in the horizontal direction to the upper end of the second support link. can

In an embodiment of the present invention, the rotation center portion is rotatably coupled to a first mount provided in the first base portion, a second mount provided in the second base portion, and one end portion is rotatably coupled to the first mount , the other end may have a housing fixedly coupled to the second mount.

In an embodiment of the present invention, the rotation center portion is provided in the inner space of the housing, one end is fixedly coupled to the first mount, the other end is fixedly coupled to the second mount, and the first base portion is fixed It may further have an elastic part that is twisted when the second base part is tilted to the left and right in a state where the elastic part is generated and generates an elastic restoring force to restore the second base part to an initial state.

On the other hand, in order to achieve the above technical problem, an embodiment of the present invention is a first base portion; a second base unit spaced apart from the first base unit; One end portion is rotatably coupled to the first base portion, the other end portion is fixedly coupled to the second base portion, a rotation center portion forming a central axis in which the second base portion is tilted to the left and right in a state in which the first base portion is fixed. ; a link part connecting the other end of the rotation center and the second base by a hinge, and hinged in conjunction with the rotation of the rotation center; and a pressing part provided on the first base part and ascending and descending from the upper side of the link part to limit the tilting angle of the second base part while contacting or spaced apart from any one of both ends of the link part. module is provided.

In an embodiment of the present invention, the rotation center portion is provided with a first mount provided on the first base portion, the second base portion, the rotation center portion is provided with a pair of extending to both sides along the radial direction. A second mount having an arm, one end of which is rotatably coupled to the first mount, and the other end of which is fixedly coupled to the second mount may have a housing.

In an embodiment of the present invention, the rotation center portion is provided in the inner space of the housing, one end is fixedly coupled to the first mount, the other end is fixedly coupled to the second mount, and the first base portion is fixed It may further have an elastic part that is twisted when the second base part is tilted to the left and right in a state where the elastic part is generated and generates an elastic restoring force to restore the second base part to an initial state.

In an embodiment of the present invention, the lower end of the link portion is hinged to one arm of the pair of arms, a first support link extending in the vertical direction, and the lower end is connected to the other arm of the pair of arms. A second support link that is hinged and extends in the vertical direction, one end of which is coupled to the housing, one end of which is hinged with the first support link, and the other end of which is hinged with the second support link. , the central portion may have a connecting link that is hinged with the fixing bar.

In an embodiment of the present invention, the pressing portion is provided to reciprocate in the vertical direction along a guide rail provided in the vertical direction on the upper portion of the first base portion, and the guide rail, the vertical upper side of the first support link A moving block having a first protrusion positioned at a position and a second protrusion positioned at a vertical upper side of the second support link, a driving unit for moving the moving block, and an upper end coupled to a lower portion of the first protrusion, the It may have a first elastic member extending in a direction of the first support link, and a second elastic member having an upper end coupled to a lower portion of the second protrusion and extending in a direction of the second support link.

In an embodiment of the present invention, when the moving block rises above a set height, the lower end of the first elastic member is spaced apart from the upper portion of the first support link, and the lower end of the second elastic member is the second support It may be spaced apart from the top of the link.

In an embodiment of the present invention, when the moving block descends below the set height, the lower end of the first elastic member is in close contact with the upper portion of the first support link, and the lower end of the second elastic member is the second It is closely attached to the upper portion of the support link, and as the moving block descends below the set height, the first elastic pressing force applied downward to the first support link by the first elastic member and the second elastic member The second elastic pressing force applied downward to the second support link may be increased.

In an embodiment of the present invention, the link portion further has a first pressure plate extending in the horizontal direction to the upper end of the first support link, and a second pressure plate extending in the horizontal direction to the upper end of the second support link. can

On the other hand, in order to achieve the above technical problem, an embodiment of the present invention is a tilting angle limiting module; a pair of left and right rear wheels connected to the first base; one front wheel connected to the second base part; And it is connected to the second base portion and includes a seat on which the driver rides, and the second base portion provides a three-wheeled transportation device, characterized in that it is tilted by the movement of the center of gravity of the driver.

According to an embodiment of the present invention, in the tilting angle limiting module, the tilting speed of the second base part is made faster at the beginning of the tilting when the second base part is tilted, but the tilting speed of the second base part is slowed toward the latter part of the tilting. and finally, the tilting angle of the second base part may be limited.

In addition, according to an embodiment of the present invention, the tilting angle limiting module may adjust the height of the moving block to adjust the tiltable angle range of the second base unit or adjust the tilting speed of the second base unit.

In addition, according to an embodiment of the present invention, the tilting angle limiting module can be changed to enable the three-wheeled transportation device to run in a mode close to three wheels or to drive in a mode close to two wheels, and through this, 3 It is possible to increase the driving stability of the wheel transport system.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view showing a tilting angle limiting module according to a first embodiment of the present invention.
FIG. 2 is a perspective view showing the center of rotation of FIG. 1 .
Figure 3 is an exploded perspective view of the rotation center of Figure 2;
FIG. 4 is an exploded perspective view showing the housing and the core in FIG. 3 .
FIG. 5 is a perspective view showing the link part of FIG. 1 as a center; FIG.
6 is a view illustrating an operation of the rotation center portion and the link portion of FIG. 5 .
7 is a perspective view showing the pressing part of FIG. 1 as a center.
8 is an operational view of the tilting angle limiting module of FIG. 1 .
9 is a block diagram showing a three-wheeled transportation device according to an embodiment of the present invention.
10 and 11 are perspective views illustrating a tilting angle limiting module according to a second embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when it is said that a part is “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member in between. “Including cases where it is In addition, when a part "includes" a certain component, this means that other components may be further provided without excluding other components unless otherwise stated.

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a tilting angle limiting module according to a first embodiment of the present invention.

As shown in FIG. 1 , the tilting angle limiting module according to the present embodiment includes a first base part 100 , a second base part 200 , a rotation center part 300 , a link part 400 and a pressing part 500 . may include

The first base part 100 may be in the form of a plate, but is not necessarily limited thereto.

The second base unit 200 may be provided adjacent to and spaced apart from the first base unit 100 , and may operate independently of the first base unit 100 . The second base part 200 may be disposed on the same plane as the first base part 100 . The second base part 200 may also be in the form of a plate, but is not limited thereto.

One end of the rotation center portion 300 may be rotatably coupled to the upper portion of the first base portion 100 , and the other end may be fixedly coupled to the upper portion of the second base portion 200 . The rotation center part 300 may form a central axis on which the second base part 200 is tilted to the left and right in a state in which the first base part 100 is fixed.

The link unit 400 may hinge-connect the rotation center portion 300 and the first base portion 100, and may have a pair of arms 411 and 412 extending to both sides along the radial direction of the rotation center portion 300. have.

The pressing part 500 is provided on the upper part of the first base part 100 and is raised and lowered from the upper side of the link part 400 while in contact with or spaced apart from at least one arm of the pair of arms 411 and 412 while being spaced apart from the second base part ( 200) of the tilt angle can be limited.

FIG. 2 is a perspective view showing the rotation center of FIG. 1 , FIG. 3 is an exploded perspective view of the rotation center of FIG. 2 , and FIG. 4 is an exploded perspective view showing the housing and the core in FIG. 3 .

2 to 4 , the rotation center 300 may have a first mount 310 , a second mount 320 , and a housing 330 .

The first mount 310 may be provided on the first base unit 100 , and the second mount 320 may be provided on the second base unit 200 .

One end of the housing 330 may be rotatably coupled to the first mount 310 . In addition, the other end of the housing 330 may be fixedly coupled to the second mount 320 . The other end of the housing 330 may be directly coupled to and fixed to the second mount 320 .

On the other hand, so that one end of the housing 330 can be rotatably coupled to the first mount 310 , the rotation center 300 includes a core 340 , a socket 350 , a holder 360 and a bearing 370 . can have more

The core 340 may be formed in a cylindrical shape, and a first flange 341 may be formed at one end thereof. A plurality of first coupling holes 342 may be formed in the first flange 341 in the circumferential direction.

In addition, a through hole 311 corresponding to the first coupling hole 342 may be formed in the first mount 310 , and the first coupling member 312 may pass through the through hole 311 through the first coupling hole ( By being coupled to the 342 , the core 340 may be fixedly coupled to the first mount 310 .

The socket 350 may be provided to surround the outer circumferential surface of the core 340 , and may have a first ring groove 351 , a second flange 353 , and a second ring groove 352 . The inner diameter of the socket 350 may be formed to be larger than the outer diameter of the core 340 , and the socket 350 may rotate independently of the core 340 .

The second flange 353 may be formed in the central portion of the outer circumferential surface of the socket 350 , and the first ring groove 351 is formed on one side of the second flange 353 with respect to the second flange 353 , and the second The ring groove 352 may be formed on the other side of the second flange 353 . When the socket 350 is coupled to the outer circumferential surface of the core 340 , the first ring groove 351 may be positioned adjacent to the first flange 341 .

The holder 360 may be coupled to the outer peripheral surface of the socket 350 , and may have a lower holder 361 and an upper holder 364 .

The lower holder 361 may be formed to have a diameter corresponding to the outer circumferential surface of the first ring groove 351 , and the lower portion of the first ring groove 351 may be seated in the lower holder 361 . In addition, a plurality of first fastening holes 362 may be formed in the lower holder 361 , and the lower holder 361 may be fixed to the first base unit 100 .

The upper holder 364 may be formed to have a diameter corresponding to the outer peripheral surface of the first ring groove 351 , and may be provided on the outer peripheral surface of the first ring groove 351 . A plurality of second fastening holes 365 may be formed through the upper holder 364 , and the second fastening member 366 is coupled to the first fastening hole 362 through the second fastening holes 365 , The upper holder 364 may be coupled to the lower holder 361 .

The holder 360 accommodates a portion of the socket 350 therein, thereby constraining the socket 350 not to move in the longitudinal direction of the core 340 . In addition, the inner diameter of the holder 360 may be greater than the outer diameter of the first ring groove 351 , and thus the socket 350 may be rotated even in a state in which the holder 360 is fixed.

The bearing 370 may be coupled to the outer circumferential surface of the core 340 . In addition, the outer circumferential surface of the bearing 370 may be coupled to the inner circumferential surface of the housing 330 . That is, the bearing 370 may be coupled between the housing 330 and the core 340 . Accordingly, the housing 330 can be rotated independently of the core 340, and through this, the second base 200, the second mount 320 and the housing ( 330) may be integrally rotated. And, when the second base part 200 rotates, the second base part 200 may be rotated about the central axis of the rotation center part 300 , specifically, the central axis of the housing 330 . The central axis of the housing 330 and the central axis of the core 340 may be the same.

Meanwhile, the rotation center portion 300 may further include an elastic portion 380 .

The elastic part 380 may be provided in the inner space 331 of the housing 330 and the inner space of the core 340 , and both ends may extend to the outside of the housing 330 and the core 340 , respectively. .

A coupling groove 315 may be formed in the first mount 310 , and one end of the elastic part 380 may be coupled to and fixed to the coupling groove 315 of the first mount 310 . In addition, the other end of the elastic part 380 may be coupled to and fixed to a coupling groove (not shown) formed in the second mount. The elastic part 380 may be formed of a leaf spring.

When the second base part 200 is tilted from side to side in a state in which the first base part 100 is fixed, the elastic part 380 may be torsionally deformed. An elastic restoring force that restores the initial state may be generated. That is, when an external force is applied to the second base part 200 and the second base part 200 is tilted, an elastic restoring force by the elastic part 380 is generated, and the external force applied to the second base part 200 is removed. When this occurs, the second base part 200 may be restored to its initial state by the elastic restoring force of the elastic part 380 . By adjusting the number of leaf springs constituting the elastic part 380 , the magnitude of the elastic restoring force by the elastic part 380 may be adjusted.

FIG. 5 is a perspective view showing the link part of FIG. 1 as a center, and FIG. 6 is a view illustrating an operation of the rotation center part and the link part of FIG. 5 .

As shown in FIGS. 5 and 6 together with FIG. 1 , the link unit 400 includes arms 411 and 412 , a first support link 420 , a second support link 430 , a first connection link 440 , and a fixture. It may have a 450 and a second connection link 460 .

The arms 411 and 412 may be formed as a pair, and may be connected to a coupling ring 410 coupled to the rotation center portion 300 . The arms 411 and 412 may be formed to extend to both sides along the radial direction of the rotation center portion 300 , respectively. Hereinafter, for convenience of description, a pair of arms will be described as a first arm 411 and a second arm 412 , respectively.

2 to 4, the coupling ring 410 may be coupled to the second ring groove 352 of the socket 350, and to be coupled with the coupling pin 354 coupled to the second flange 353. can Through this, the coupling ring 410 may be integrally formed with the socket 350 , and the coupling ring 410 , the socket 350 and the housing 330 may be integrally rotated.

The lower end of the first support link 420 may be hinge-coupled to one of the pair of arms, that is, the first arm 411, and extend in the vertical direction.

In addition, the lower end of the second support link 430 is hinged to the other arm of the pair of arms, that is, the second arm 412 , and may be provided to extend in the vertical direction. The first arm 411 , the second arm 412 , the first support link 420 , and the second support link 430 may be provided to be symmetrical with respect to the center of the coupling ring 410 .

One end of the first connection link 440 may be hinge-coupled to the first support link 420 , and the other end may be hinge-coupled to the second support link 430 . The length of the first connection link 440 may be the same as the length between both ends of the first arm 411 and the second arm 412 .

In addition, the fixing table 450 may be provided on the first base part 100 . In addition, one end of the second connection link 460 may be coupled to the fixing base 450 , and the other end may be hinge-coupled to the central portion of the first connection link 440 .

Accordingly, when the first arm 411 and the second arm 412 rotate together with the rotation center 300 , the first support link 420 and the second support link 430 move up and down. Since the connecting link 440 is rotated around the second connecting link 460 and also hinged with the first support link 420 and the second support link 430 at the same time, the first support link 420 and the second The support link 430 may be moved in a vertical direction in a vertical state.

Referring to FIG. 6A , when the second base part 200 is in a horizontal state, upper ends of the first support link 420 and the second support link 430 may be positioned on the same horizontal plane. . Then, as shown in (b) of FIG. 6 , when the second base part 200 rotates clockwise and the left side rises, the upper end of the second support link 430 is the first support link 420 . It may be located above the upper end of the.

The link unit 400 may further include a first pressure plate 470 and a second pressure plate 480 , and the first pressure plate 470 may be horizontally expanded and formed at the upper end of the first support link 420 , , the second pressure plate 480 may be formed to expand in the horizontal direction at the upper end of the second support link 430 .

As will be described later, the first elastic member 540 may be positioned on the vertical upper portion of the first support link 420 , and the second elastic member 550 may be positioned on the vertical upper portion of the second support link 430 . However, when the rotation center part 300 is rotated and the first support link 420 and the second support link 430 move in the vertical direction, the first support link 420 and the second support link 430 are respectively first The first elastic member 540 and the second elastic member 550 may be moved while deviating from the vertical lower side. However, since the first pressure plate 470 and the second pressure plate 480 are expanded in the horizontal direction, they can be stably pressed by the first elastic member 540 and the second elastic member 550 , respectively.

7 is a perspective view showing the pressing part of FIG. 1 as a center, and FIG. 8 is an operation example of the tilting angle limiting module of FIG. ), and FIG. 8 (b) shows a state in which the second base part 200 is rotated by a second angle θ2 greater than the first angle θ1.

7 and 8 , the pressing unit 500 has a guide rail 510 , a moving block 520 , a driving unit 530 , a first elastic member 540 and a second elastic member 550 . can

The support part 110 may be provided on the upper part of the first base part 100 , and the guide rail 510 may be provided on the upper part of the support part 110 in the vertical direction.

The moving block 520 may be provided to reciprocate in the vertical direction along the guide rail 510 . The moving block 520 may have a first protrusion 521 positioned at a vertically upper side of the first support link 420 and a second protrusion 522 positioned at a vertical upper side of the second support link 430 . .

A pair of guide rails 510 may be provided so that the moving block 520 can move up and down stably without shaking.

The driving unit 530 may move the moving block 520 , and the configuration of the driving unit 530 for implementing this is not particularly limited. For example, the driving unit 530 is made of a motor, and the driving shaft 531 that is connected to the motor and rotates is gear-coupled with the moving block 520 so that the moving block 520 moves up and down according to the rotational direction of the driving shaft 531 . It can be implemented to be moved.

The upper end of the first elastic member 540 may be coupled to the lower portion of the first protrusion 521 and extend in the direction of the first support link 420 . When the second base part 200 is in an initial horizontal state, the first elastic member 540 may be positioned vertically above the first support link 420 .

In addition, the second elastic member 550 may have an upper end coupled to a lower portion of the second protrusion 522 and may be formed to extend in the direction of the second support link 430 . When the second base part 200 is in an initial horizontal state, the second elastic member 550 may also be positioned vertically above the second support link 430 .

As shown in FIG. 1 , when the moving block 520 is raised above a set height, the lower end of the first elastic member 540 is spaced apart from the upper portion of the first support link 420 , and the second elastic member The lower end of the 550 may be spaced apart from the upper portion of the second support link 430 . Then, when the moving block 520 descends below the set height, the lower end of the first elastic member 540 is in close contact with the upper portion of the first support link 420 , and the lower end of the second elastic member 550 is the second It may be in close contact with the upper portion of the support link 430 . As the moving block 520 descends below the set height, the first elastic pressing force applied downward to the first support link 420 by the first elastic member 540 and the second by the second elastic member 550 The second elastic pressing force applied downward to the support link may be increased.

That is, as shown in (a) of FIG. 8 , when the second base part 200 is tilted, the second pressure plate 480 of the second support link 430 presses the second elastic member 550 upward. . Then, an elastic restoring force is generated in the second elastic member 550 . At this time, if the second base unit 200 is being tilted by an external force, the external force is gradually offset by the elastic restoring force generated by the second elastic member 550 so that the rotation speed of the second base unit 200 is reduced. can Then, as shown in (b) of FIG. 8, if the rotation of the second base part 200 continues, the second elastic member 550 is further compressed to generate a greater elastic restoring force, and finally, the second elastic member 550 is further compressed. 2 The rotation of the base part 200 may be stopped. The second elastic member 550 may reduce the impact applied to the second base part 200 by gradually stopping the tilting of the second base part 200 .

On the other hand, when the external force applied to the second base part 200 is removed or the magnitude of the external force is gradually reduced, the elasticity of the rotation center part 300 together with the elastic restoring force by the compressed second elastic member 550 is The second base part 200 may be rotated by the elastic restoring force by the part 380 (refer to FIG. 3 ) to return to the initial horizontal state.

Using this method, when the second base part 200 is tilted by an external force of the same magnitude, the tilting speed of the second base part 200 is fast at the beginning of the tilting, but the second base part is tilted toward the latter part of the tilting. The tilting speed of 200 may be made to be slow, and finally, the tilting angle of the second base part 200 may be limited.

In particular, when the height of the moving block 520 is lowered by adjusting the height of the moving block 520 , the elastic member is compressed early by the support link moving upward from the initial point of tilting of the second base unit 200 . Therefore, the tiltable angle of the second base part 200 can be minimized, and the tilting speed adjustment of the second base part 200 can be applied more quickly. On the other hand, when the height of the moving block 520 is increased by adjusting the height of the moving block 520 , the tiltable angle of the second base unit 200 may be maximized.

9 is a block diagram showing a three-wheeled transportation device according to an embodiment of the present invention.

As can be seen further including FIG. 9 , the three-wheeled transport device may include a tilting angle limiting module 10 , a rear wheel 20 , a front wheel 30 , and a seat 40 .

Since the tilting angle limiting module 10 has been described above, a description thereof will be omitted.

The rear wheel 20 may be connected to the first base unit 100 and may be provided as a left and right pair.

The front wheel 30 may be connected to the second base unit 200 , and the seat 40 on which the driver rides may be connected to the second base unit 200 . Accordingly, when the driver's center of gravity is moved and the seat 40 is tilted, the second base unit 200 may also be tilted.

The tilting angle limiting module 10 is a moving block 520 in a situation where posture stability is required, for example, when stopped, when traveling at low speed, when a heavy load must be moved, or when the ground is uneven. The tiltable angle of the second base unit 200 is minimized by moving the . On the other hand, in situations where maneuverability rather than posture stability is required, for example, when agile movements are required, a small turning radius must be implemented, or when turning on a narrow road or driving at high speed, the moving block ( 520) can be moved upward to maximize the tiltable angle of the second base unit 200 so that the three-wheeled transportation device can run in a mode close to two-wheeled, and through this, the driving stability of the three-wheeled transportation device is maximized. can increase

On the other hand, in the front, it has been described that a pair of left and right rear wheels 20 are connected to the first base unit 100 and one front wheel 30 is connected to the second base unit 200, but the rear wheels 20 are It is configured as one, and the front wheel 30 may be configured as a pair.

10 and 11 are perspective views illustrating a tilting angle limiting module according to a second embodiment of the present invention. In this embodiment, the link unit and a part of the configuration associated with the link unit may be different from those of the above-described first embodiment, and since other configurations are the same as those of the above-described first embodiment, repeated contents will be omitted as much as possible.

10 and 11 , the tilting angle limiting module according to the present embodiment also includes a first base part 1100 , a second base part 1200 , a rotation center part 1300 , a link part 1400 , and a pressing part. (1500) may be included.

In addition, the second base part 1200 may be provided adjacent to and spaced apart from the first base part 1100 .

In addition, one end of the rotation center 1300 is rotatably coupled to the first base unit 1100 , the other end is fixedly coupled to the second base unit 1200 , and the first base unit 1100 is fixed. In the second base portion 1200 may form a central axis tilted left and right.

The rotation center portion 1300 may have a first mount 1310 provided on the first base portion 1100 and a second mount 1320 provided on the second base portion 1200 . In this embodiment, the second mount 1320 may have a pair of arms 1321 and 1322 extending to both sides along the radial direction of the rotation center 1300 .

One end of the housing 1330 may be rotatably coupled to the first mount 1310 , and the other end may be fixedly coupled to the second mount 1320 .

In addition, the rotation center portion 1300 is provided in the inner space of the housing 1330, one end is fixedly coupled to the first mount 1310, the other end is fixedly coupled to the second mount, the first base portion (1100) It may further have an elastic part (not shown) that is twisted when the second base part 1200 is tilted from side to side in a fixed state to generate an elastic restoring force to restore the second base part 1200 to an initial state.

In addition, the rotation center 1300 includes a core 1340 provided between one end of the housing 1330 and the first mount 1310 , and a bearing (not shown) provided between the core 1340 and the housing 1330 . city) can have.

Meanwhile, in the present embodiment, the link unit 1400 may hinge-connect the other end of the rotation center portion 1300 and the second base portion 1200 , and may be hinged in conjunction with the rotation of the rotation center portion 1300 .

In addition, the link unit 1400 may have a first support link 1420 , a second support link 1430 , a fixing base 1440 , and a connection link 1450 .

The lower end of the first support link 1420 may be hingedly coupled to the first arm 1321 that is one of a pair of arms provided on the second mount 1320 to extend in the vertical direction. In addition, the second support link 1430 may be hinge-coupled to the second arm 1322, which is the other arm among the pair of arms provided in the second mount 1320, at the lower end thereof to extend in the vertical direction.

In addition, one end of the fixture 1440 may be coupled to the housing 1330 , and one end of the connection link 1450 is hinge-coupled to the first support link 1420 , and the other end is coupled to the second support link 1430 . It is hinge-coupled, and the central part may be hinge-coupled to the fixing base 1440 . Accordingly, when the second base unit 1200 is tilted, the second mount 1320 is also tilted in conjunction with each other, and accordingly, the first support link 1420 and the second support link 1430 may be moved in the vertical direction. . In addition, the link unit 1400 includes a first pressure plate 1470 extending in a horizontal direction to an upper end of the first support link 1420 , and a second pressing plate 1470 extending in a horizontal direction to an upper end of the second support link 1430 . It may have a pressure plate 1480 .

In addition, in this embodiment, the pressing unit 1500 may have a guide rail 1510 , a moving block 1520 , a driving unit 1530 , a first elastic member 1540 and a second elastic member 1550 , and as a whole, It may have a configuration corresponding to the pressing unit 500 described in the first embodiment.

That is, the guide rail 1510 may be provided on the upper portion of the first base unit 1100 in the vertical direction. And, the moving block 1520 is provided to reciprocate in the vertical direction along the guide rail 1510, the first protrusion 1521 positioned vertically upper side of the first support link 1420, the second support link ( It may have a second protrusion 1522 positioned vertically above the 1430 . In addition, the driving unit 1530 may move the moving block 1520 , and the upper end of the first elastic member 1540 is coupled to the lower portion of the first protrusion 1521 , and extends in the first support link 1420 direction. can be formed. In addition, the second elastic member 1550 may have an upper end coupled to a lower portion of the second protrusion 1522 and extend in the direction of the second support link 1430 .

Even according to this embodiment, when the second base part 1200 is tilted by an external force of the same magnitude, the tilting speed of the second base part 1200 is fast at the beginning of the tilting, but toward the latter half of the tilting, the second base part 1200 is tilted. The tilting speed of the unit 1200 may be slowed, and ultimately, the tilting angle of the second base unit 1200 may be limited.

In addition, when the height of the moving block 1520 is lowered by adjusting the height of the moving block 1520, since the elastic member can be compressed early by the support link from the beginning of the tilting of the second base unit 1200, the first The tiltable angle of the second base part 1200 may be minimized, and the tilting speed adjustment of the second base part 1200 may be applied more quickly. On the other hand, when the height of the moving block 1520 is increased by adjusting the height of the moving block 1520 , the tiltable angle of the second base unit 1200 may be maximized.

The description of the present invention described above is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

10: tilt angle limiting module 20: rear wheel
30: front wheel 40: seat
100,1100: first base part 200,1200: second base part
300, 1300: rotation center 330, 1330: housing
340,1340: core 350: socket
360: holder 380: elastic part
400, 1400: link portion 420, 1420: first support link
430, 1430: second support link 470, 1470: first pressure plate
480,1480: second pressing plate 500,1500: pressing part
520, 1520: moving block 540, 1540: first elastic member
550, 1550: second elastic member

Claims (17)

a first base part;
a second base unit spaced apart from the first base unit;
One end is rotatably coupled to the upper portion of the first base portion, the other end is fixedly coupled to the upper portion of the second base portion, and forms a central axis on which the second base portion is tilted from side to side while the first base portion is fixed. rotation center;
a link portion coupled to the rotation center portion to rotate integrally with the rotation center portion, and a link portion having a pair of arms extending to both sides along a radial direction of the rotation center portion; and
Tilt angle limitation including; a pressing part provided on the first base part and configured to limit the tilting angle of the second base part while being raised and lowered from the upper side of the link part and contacting or spaced apart from at least one arm of the pair of arms module. According to claim 1,
the link part
The lower end portion is hinged to one arm of the pair of arms, and a first support link extending in the vertical direction;
A lower end portion is hinged to the other arm of the pair of arms, and a second support link extending in the vertical direction;
a first connection link having one end hinge-coupled to the first support link and the other end hinge-coupled to the second support link;
a fixing base provided on the upper part of the first base part;
A tilting angle limiting module, characterized in that one end is coupled to the fixture, and the other end has a second connecting link hinged to the first connecting link. 3. The method of claim 2,
The pressurizing part
a guide rail provided on the upper part of the first base in the vertical direction;
A moving block provided to reciprocate in the vertical direction along the guide rail and having a first protrusion positioned at a vertical upper side of the first support link and a second protrusion positioned at a vertical upper side of the second support link; ,
a driving unit for moving the moving block;
a first elastic member having an upper end coupled to a lower portion of the first protrusion and extending in a direction of the first support link;
The tilting angle limiting module, characterized in that the upper end is coupled to the lower portion of the second protrusion and has a second elastic member extending in the direction of the second support link. 4. The method of claim 3,
When the movable block rises above a set height, the lower end of the first elastic member is spaced apart from the upper portion of the first support link, and the lower end of the second elastic member is spaced apart from the upper portion of the second support link. Tilt angle limiting module with 5. The method of claim 4,
When the moving block descends below the set height, the lower end of the first elastic member is in close contact with the upper portion of the first support link, and the lower end of the second elastic member is in close contact with the upper portion of the second support link,
As the moving block descends below the set height, the first elastic pressing force applied downward to the first support link by the first elastic member and the second elastic member are applied downward to the second support link by the second elastic member. The tilting angle limiting module, characterized in that the second elastic pressing force is increased. 4. The method of claim 3,
the link part
a first pressure plate extending in the horizontal direction at the upper end of the first support link;
The tilting angle limiting module, characterized in that it further includes a second pressure plate extending in the horizontal direction at the upper end of the second support link. According to claim 1,
The rotation center
a first mount provided on the first base portion;
a second mount provided on the second base portion;
A tilting angle limiting module, characterized in that the housing has one end rotatably coupled to the first mount and the other end fixedly coupled to the second mount. 8. The method of claim 7,
The rotation center
It is provided in the inner space of the housing, one end is fixedly coupled to the first mount, the other end is fixedly coupled to the second mount, and when the second base portion is tilted left and right while the first base portion is fixed The tilting angle limiting module, characterized in that it further has an elastic part that twists to generate an elastic restoring force for restoring the second base part to an initial state. a first base part;
a second base unit spaced apart from the first base unit;
One end portion is rotatably coupled to the first base portion, the other end portion is fixedly coupled to the second base portion, a rotation center portion forming a central axis in which the second base portion is tilted to the left and right in a state in which the first base portion is fixed. ;
a link part connecting the other end of the rotation center and the second base by a hinge, and hinged in conjunction with the rotation of the rotation center; and
A tilting angle limiting module comprising a; a pressing part provided on the first base part and configured to limit the tilting angle of the second base part while being raised and lowered from the upper side of the link part and contacting or spaced apart from either end of the link part . 10. The method of claim 9,
The rotation center
a first mount provided on the first base portion;
a second mount provided on the second base portion and having a pair of arms extending to both sides along the radial direction of the rotation center portion;
A tilting angle limiting module, characterized in that the housing has one end rotatably coupled to the first mount and the other end fixedly coupled to the second mount. 11. The method of claim 10,
The rotation center
It is provided in the inner space of the housing, one end is fixedly coupled to the first mount, the other end is fixedly coupled to the second mount, and when the second base portion is tilted left and right while the first base portion is fixed The tilting angle limiting module, characterized in that it further has an elastic part that twists to generate an elastic restoring force for restoring the second base part to an initial state. 11. The method of claim 10,
the link part
The lower end portion is hinged to one arm of the pair of arms, and a first support link extending in the vertical direction;
A lower end portion is hinged to the other arm of the pair of arms, and a second support link extending in the vertical direction;
a fixing bar having one end coupled to the housing;
One end portion is hinge-coupled to the first support link, the other end is hinge-coupled to the second support link, and the central portion has a connecting link hinge-coupled to the fixing base. 13. The method of claim 12,
The pressurizing part
a guide rail provided on the upper part of the first base in the vertical direction;
A moving block provided to reciprocate in the vertical direction along the guide rail and having a first protrusion positioned at a vertical upper side of the first support link and a second protrusion positioned at a vertical upper side of the second support link; ,
a driving unit for moving the moving block;
a first elastic member having an upper end coupled to a lower portion of the first protrusion and extending in a direction of the first support link;
The tilting angle limiting module, characterized in that the upper end is coupled to the lower portion of the second protrusion and has a second elastic member extending in the direction of the second support link. 14. The method of claim 13,
When the movable block rises above a set height, the lower end of the first elastic member is spaced apart from the upper portion of the first support link, and the lower end of the second elastic member is spaced apart from the upper portion of the second support link. Tilt angle limiting module with 15. The method of claim 14,
When the moving block descends below the set height, the lower end of the first elastic member is in close contact with the upper portion of the first support link, and the lower end of the second elastic member is in close contact with the upper portion of the second support link,
As the moving block descends below the set height, the first elastic pressing force applied downward to the first support link by the first elastic member and the second elastic member are applied downward to the second support link by the second elastic member. The tilting angle limiting module, characterized in that the second elastic pressing force is increased. 14. The method of claim 13,
the link part
a first pressure plate extending in the horizontal direction at the upper end of the first support link;
The tilting angle limiting module, characterized in that it further includes a second pressure plate extending in the horizontal direction at the upper end of the second support link. The tilting angle limiting module according to claim 1 or 9;
a pair of left and right rear wheels connected to the first base;
one front wheel connected to the second base part; and
It is connected to the second base portion and includes a seat on which the driver rides,
The second base part is a three-wheeled transport device, characterized in that tilted by the movement of the center of gravity of the driver.

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