KR101228443B1 - Wheel Supporting Apparatus for Compact Transferring Car Powered by Electronics - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support device for a small electric passenger car, wherein the wheel driven and driven and driven by the operation of the electric motor is provided at both lower sides of the vehicle body, and is located at the lower center of the vehicle body. A hinge body disposed in one direction from the wheels located at both sides, the hinge body having an open bottom portion and having a hinge space inward, and disposed inside the hinge body and installed inside the hinge space; A support body having a hinge hole disposed at a lower portion of the vehicle body and extending to both sides of the wheel to be inserted into the hinge space and into which the hinge body is inserted and hinged at a center thereof; Each wheel position in both directions from both ends of the support body. If the axle, and is disposed between the axle and the wheel, which extends, and a wheel support, which said wheel is rotatable to couple with the axle.

Description

Wheel Support for Small Electric Carrier {Wheel Supporting Apparatus for Compact Transferring Car Powered by Electronics}

The present invention relates to a wheel support device for a compact electric passenger carriage.

In general, a small passenger transport vehicle refers to a small vehicle that carries a loaded cargo to a desired place while the operator is on board. Small passenger trucks are arranged to carry objects that are difficult to transport by humans in confined spaces such as factories, cargo warehouses, crop growing areas, and livestock farms. The small passenger car is divided into a vehicle driven by power of combustion of fossil fuel such as gasoline and a vehicle driven by power of an electric motor driven by supply of electric power.

Recently, small electric passenger transport vehicles using electricity to minimize air pollution are mainly used. Such a small electric passenger car is provided with a wheel for driving the vehicle while being rotated by the operation of the electric motor, and steering the driving direction by the operation of the steering device. It is provided on both sides of the vehicle body and is connected to the support device so as to be rotatable. Such a usual support apparatus is provided in the lower part of the vehicle body, and connects the wheel located in both sides.

In the above-described conventional support device, the wheels located at both sides are connected to each other so as to be rotatable while preventing the up and down flow, so that the outer wheels connected by the centrifugal force are prevented from being moved up and down when the carriage is rotated. As a phenomenon occurs, as the grip power is lost, posture stability decreases while driving, and operation is difficult. When the lifting phenomenon deepens, there is a problem that an overturning accident occurs. That is, the wheels located on both sides are connected to a support device supported so that flow does not occur up and down. When the transporter rotates, a phenomenon occurs that the outer wheels connected to the inner wheels are moved upward by centrifugal force. As the contact with the ground is released, the holding power is lost.

In addition, each wheel disposed on both sides of the vehicle traveling on the uneven road or uneven ground flows upward and downward on the uneven surface or uneven surface. The amount of impact due to this flow is concentrated in a conventional support device connecting the wheels so that up and down flow is prevented, causing a problem of damage and breakage.

Then, when the vehicle passes on the uneven road or the uneven ground, the flow generated from each wheel is transferred through the usual supporting device connected to the wheel, causing the wheel to be lifted or tempered to temporarily hold the wheel. As it is lost, the operation is difficult, and if the flow is severe, there was a problem that the loaded object falls.

The problem to be solved by the present invention is connected to maintain the traction of the wheels disposed on both sides in accordance with the road surface situation and the direction of rotation during the rotation or non-uniform driving of the carriage, thereby preventing the lifting and tempering of the wheel Provided is a wheel support device for a compact electric passenger carriage that can maintain a stable posture while driving a vehicle.

The wheel support device for a small electric vehicle according to an embodiment of the present invention is driven by the operation of an electric motor, and in the small electric passenger vehicle in which steering and driving wheels are installed at both lower sides of the vehicle body, It is disposed in the lower center, located in one direction from the wheel located on both sides, the hinge body having a lower opening and the hinge space inward, disposed inside the hinge body, is installed inside the hinge space The hinge body, which is disposed on the lower portion of the vehicle body, extending to both sides of the wheel is located is inserted into the inside of the hinge space is a support body having a hinge hole is inserted into the hinge hinge in the center, the support body It is disposed on both sides, each of the said in the opposite direction at both ends of the support body An axle extending to a wheel position, and a wheel support disposed between the axle and the wheel, the wheel support being connected to the axle such that the wheel is rotatable, the axle being at both ends of the support body; The interval is widened in the direction connecting each center point in the plane can be made of a substantially triangular-shaped truss structure, the support body is hinged to the hinge body by the hinge body is arranged on both sides around the hinge body The wheel may be rotated according to the vertical flow of the wheel connected to the axle and the wheel support to support the wheel to be grounded with the ground.

In addition, one side of the support body may be formed with a first fixing groove that is fixed to the axle on both sides, the other side of the support body is located in the upper direction wider than the first fixing groove on both sides 2 As the fixing groove may be formed, the axle is fixed to the first fixing groove and the second fixing groove formed on both sides of the support body, respectively, and is installed to be inclined upwardly while widening the distance to the other side in the wheel direction. By connecting each center line on the front, side, and the like, an approximately triangular truss structure can be formed.

And a stopper protruding in a downward direction at a position separated from the center of the lower surface of the vehicle body, the stopper adjusting a rotational interval in contact with the support body rotated up and down about the hinge body, and an upper portion of the support body. The stopper plate may be further disposed at a position separated from the center, and disposed at an upper position of the support body to which the stopper is in contact, and the stopper plate may be adjusted to rotate while being in contact with the stopper. By adjusting the length protruding in the lower direction of the vehicle body can be adjusted in contact with the stopper plate disposed on the upper portion of the support body that is rotated around the hinge body to adjust the interval to rotate up and down, the stopper plate is the stopper Disposed on top of the support body in contact with the As the stopper contacts the stopper plate at the interval spacing is adjusted can be adjusted.

In addition, the axle may be formed in the shape of a pipe having elasticity can absorb the flow generated during driving to the elasticity of the wheel and the axle.

According to an embodiment of the present invention, a support device hinged to move up and down wheels located on both sides thereof so as to travel and steer an electric carriage driven while carrying an object to be transported and driven by an electric motor is installed. As it rotates around the hinge according to the road surface situation or the rotating direction, the wheels are lifted and tempered by maintaining the ground state of both wheels, thereby providing an effect of improving steering performance.

In addition, the support device connecting the wheel is hinged and rotated in accordance with the road surface or the direction of rotation to maintain the ground state of the wheel, and by reducing the vertical flow of the car body, to prevent the object loaded on the car body to fall In this case, the riding comfort of the occupant is improved.

In addition, the lower body of the body is coupled to the hinge and the device is installed to adjust the distance to move up and down between the support body is moved up and down around the hinge is installed so that the support body to move up and down on the vehicle body in contact with the vehicle body Is prevented, and the movement amount moved up and down according to the driver is controlled.

In addition, the axles connected to each wheel on both sides of the support body is widened in the direction of the wheel from the support body to form a substantially triangular shape in the plane, the axle is inclined so as to face upward in the wheel direction from the support body It has a truss structure that is roughly triangular in the front and side to facilitate stress distribution in the plane, the front and the side, respectively, so that the impact and the load of the vehicle body and the object to be transported can be effectively distributed while driving. to provide.

In addition, the axles for connecting the wheels on both sides to the support body is provided in the form of a pipe to reduce the amount of flow flowing up and down by using the elastic characteristics of the wheels and the pipe-shaped axle, and by the elasticity of the pipe axles The action of the lateral force provides the effect of reducing the internal deformation of the wheel.

1 is a perspective view showing a state in which a support device for a small electric vehicle carriage according to an embodiment of the present invention is installed.
FIG. 2 is a front view showing a state in which the support device for the small electric vehicle carriage of FIG. 1 is installed. FIG.
3 is a cross-sectional view showing a main part of the support device for a small electric vehicle carriage of FIG.
4 is a use state diagram showing a state in which the traveling section is driven in a state in which the support device for a small electric vehicle carriage of FIG. 1 is installed;
5 is a use state diagram illustrating a state in which the uneven section is traveled in a state in which the support device for the small electric vehicle carriage of FIG. 1 is installed;
Fig. 6 is a perspective view showing a support which is a main part of the support device for the small electric passenger car of Fig. 1.
FIG. 7 is a plan view showing a shape of a support part that is a main part of the support device for a small electric passenger car of FIG. 1; FIG.
FIG. 8 is a front view showing the shape of a support portion which is a main part of the support device for a small electric passenger car of FIG. 1; FIG.
FIG. 9 is a side view showing the shape of a support that is a main part of the support device for a small electric passenger car of FIG. 1; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

Then, the configuration of the wheel support device for a compact electric passenger carriage according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9.

1 is a perspective view showing a state in which a support device for a small electric vehicle carriage according to an embodiment of the present invention is installed, FIG. 2 is a front view showing a state in which the support device for a small electric vehicle carriage of FIG. 1 is installed, and FIG. It is sectional drawing which shows the principal part of the support apparatus for the small electric carriages of FIG. 1, FIG. 4 is a use state diagram which shows the state which travels a rotating section in the state in which the support apparatus for the small electric passenger carriages of FIG. 1 is installed, FIG. 1 is a use state diagram showing a state of traveling the uneven section in a state in which the support device for the small electric vehicle carriage of FIG. 1 is installed, and FIG. 6 is a perspective view showing a supporting portion which is a main part of the support device for the small electric vehicle carriage of FIG. 7 is a plan view showing the shape of the support portion, which is a main part of the support device for a small electric vehicle carriage of FIG. 1, and FIG. It is a front view which shows the shape of the support part which is a main part of the support device for small electric passenger cars of 1, and FIG. 9 is a side view which shows the shape of the support part which is a main part of the support device for small electric passenger carriages of FIG.

1 to 9, the wheel support device for a small electric carriage 100 according to an embodiment of the present invention is a space in which the object of the small electric carriage 1 is transported and the space in which the user is boarded. The branch is provided in the lower part of the vehicle body 10, and both wheels of the vehicle body 10 are driven by rotation by the drive of an electric motor, and the wheels 20 provided to steer the direction are connected to enable rotation.

The support device 100 as described above includes a hinge portion 110 and a support portion 120 provided at a position where the wheels 20 of the vehicle body 10 are installed. The hinge unit 110 includes a hinge body 111, a hinge body 113, and a stopper 114 disposed at the lower center of the vehicle body 10. The hinge body 111 is disposed in the lower center of the vehicle body 10 and is located between the wheels 20 located on both sides. The hinge body 111 is disposed at a position moved forward from the center line connecting the centers of the wheels 20 disposed on both sides, and has a hinge space 112 having a lower portion opened inward. The support part 120 is inserted into the hinge space 112 so that the support part 120 is positioned inside the hinge body 111.

The hinge body 113 is disposed inside the hinge body 111 and is located at the center of the hinge space 112. The hinge body 113 is disposed inside the hinge space 112 so that the support inserted into the hinge space 112 is hinged. The hinge body 113 hinges the support part 120 to the inside of the hinge body 111 so that the hinge body 113 can be moved up and down at the wheel connection position, which is the left and right ends of the support part 120 inserted into the hinge space 112.

The stopper 114 protrudes in the downward direction from the lower center of the vehicle body 10 to both sides, respectively, and protrudes at positions in contact with the upper portion of the support part 120. The stopper 114 is hinged to the hinge body 113 and protrudes at positions separated to both sides of the hinge body 111 so that both ends of the hinge body 113 come into contact with the support 120 which is moved up and down. have. The stopper 114 is hinged to be rotated about the hinge body 113 to be in contact with the support part 120 that is moved up and down at both ends, and the interval of vertical movement is adjusted according to the protruding length. That is, the stopper 114 may protrude to the lower portion of the vehicle body 10 and control the vertical movement amount according to the driver's driving habit by controlling the vertical movement interval due to the rotation of the support 120.

The support part 120 includes a support body 121, an axle 126, a wheel support 127, and a stopper plate 128 disposed under the vehicle body 10. The support body 121 is disposed inside the hinge body 111 and is inserted into the hinge space 112. A support space 122 is formed inside the support body 121, and a hinge hole 123 penetrating the front and rear surfaces of the support space 122 is formed at the center thereof. The support body 121 has the hinge body 113 inserted into the hinge hole 123 in the state of being inserted into the hinge space 112 and is positioned inside the support space 122 so that the support body 121 is the hinge body 111. Hinge is coupled to the hinge body 113). The support body 121 is rotated so that both ends of the left and right are moved up and down about the hinge body 113 which is hinged.

In addition, front fixing grooves 124 to which front portions of the axle 126 are fixed are formed at both front surfaces of the support body 121. The front fixing groove 124 is formed in the front of the support body 121 hinged to the hinge body 111 disposed at a position moved forward than the position connecting the center line of the wheels 20 located on both sides of the axle The front portion of 126 is fixed.

In addition, rear fixing grooves 125 to which rear portions of the axle 126 are fixed are formed at both rear sides of the support body 121. The rear fixing groove 125 is positioned in the upper direction with a wider gap than the front fixing groove 124, so that the rear fixing groove 125 is widened in a state where the axle 126 is fixed to the front fixing groove 124. As the axle 126 is fixed so as to widen the gap from the front side to the rear side, the center line of the axle 126 is connected to the plane to form an approximately triangular truss structure. The truss structure refers to a stable structure in which external stress is easily dispersed and refers to a substantially triangular structure. That is, the truss structure made of a triangular shape is mainly used in structures in which stress is concentrated, such as bridges, so that stresses applied in various directions can be effectively dispersed to improve structural stability.

In addition, the rear fixing groove 125 is disposed above the front fixing groove 124 so that when the axles are fixed to the front fixing groove 124 and the rear fixing groove 125, respectively, the axles are inclined to rise from the front to the rear. As the interval is widened in the rear direction and the center line of the axle 126 is connected on the front and side surfaces as the inclined to the upper position, the truss structure has a substantially triangular shape. That is, the axle 126 is inclined in an upward direction with a gap therebetween, and when connected to each other in a state in which the centerline is extended on the front, the plane, and the side, the axle 126 is composed of a substantially triangular truss structure, thereby dispersing external stress, thereby improving structural stability. Can be improved.

The axle 126 is disposed on both sides of the support body 121, respectively, and is installed at positions where the wheels 20 located on both sides of the support body 121 are rotatably fixed. The axle 126 is fixed to both sides of the support body 121 hinged and both ends are moved up and down to be rotatably supported by the axle 126 and the wheel support 127. The axle 126 is provided in the form of a pipe having elasticity by the elasticity of the wheel 20 and the elasticity of the axle 126 to prevent the falling of the loaded object by absorbing the flow of the small electric passenger car (1) In this case, the riding comfort of the driver on board may be improved.

The wheel support 127 is disposed at both ends in the rear direction of the axle 126 disposed on both sides of the support body 121, respectively, and is installed between the wheel 20 and the axle 126 to support the wheel 20 and the axle. 126 is connected respectively. The wheel support 127 is located at both sides of the support body 121 at the rear side, so that one side is fixed to the axle 126 and the other side is rotatably supported with the wheel 20 so that the wheel 20 and the axle 126 are supported. Are connected at both sides.

The stopper plate 128 is disposed on an upper portion of the support body 121, and is provided at positions contacting the stopper 114 protruding from the vehicle body 10. The stopper plate 128 is hinged to the hinge body 113 and is installed on an upper portion of the support body 121 that is rotated to move the wheel 20 up and down in accordance with a road situation or a rotational direction to contact the stopper 114. The interval to rotate is adjusted. That is, the stopper plate 128 is installed between the protruding stopper 114 and the support body 121 so that the rotation interval can be adjusted to prevent direct contact between the support body 121 and the stopper 114 to support the support body ( 121 damage can be minimized.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1: small electric passenger car 10: body
20: wheel 100: support device
110: hinge portion 111: hinge body
112: hinge space 113: hinge body
114: stopper 120: support portion
121: support body 122: support space
123: hinge hole 124: front fixing groove
125: rear fixing groove 126: axle
127: wheel support 128: stopper plate

Claims (4)

In a small electric passenger car, which is driven by the operation of an electric motor, and steering and driven wheels are provided on both lower sides of the vehicle body,
A hinge body disposed at a lower center of the vehicle body and positioned in one direction from the wheels located at both sides thereof, the hinge body having a lower opening and a hinge space inward;
A hinge body disposed inside the hinge body and installed inside the hinge space;
A support body having a hinge hole disposed at a lower portion of the vehicle body and extending to both sides of the wheel to be inserted into the hinge space and into which the hinge body is inserted and hinged to the center;
An axle disposed on both sides of the support body and extending from each end of the support body to each of the wheel positions in the other direction; and
A wheel support disposed between the axle and the wheel and connected to the axle such that the wheel is rotatable;
Including;
The axle may be formed in a triangular truss structure by connecting the respective center point on the plane while the interval is widened in the direction of the wheel at both ends of the support body,
The support body is hinged to the hinge body by the hinge body is rotated in accordance with the vertical flow of the wheel connected to the axle and the wheel support disposed on both sides around the hinge body and the wheel is grounded with the ground Supportable to maintain
Wheel support device for small electric passenger car. The method of claim 1,
One side of the support body is formed with a first fixing groove for fixing the axle to both sides,
As the other side of the support body is formed with a second fixing groove located in the upper direction while the distance between the first fixing groove wider than both sides are formed
The axles are respectively fixed to the first fixing grooves and the second fixing grooves formed on both sides of the support body, and are inclined upwardly while being widened to the other side in the wheel direction so as to be inclined in the upper direction. Can be made into a triangular truss structure
Wheel support device for small electric passenger car. The method of claim 1,
A stopper protruding in a downward direction at a position separated from a center of a lower surface of the vehicle body, the stopper adjusting a rotation interval while being in contact with the support body rotated up and down about the hinge body;
Stopper plates which are disposed at positions apart from the upper center of the support body, respectively, are disposed at an upper position of the support body to which the stopper is in contact with each other and the interval at which the rotation is made while contacting the stopper is adjusted.
More,
The stopper may adjust an interval to be rotated up and down while contacting the stopper plate disposed on the upper portion of the support body rotated about the hinge body by adjusting the length projecting in the lower direction of the vehicle body,
The stopper plate may be disposed on an upper portion of the support body in contact with the stopper so that the gap may be adjusted while the stopper contacts the stopper plate when the upper and lower intervals are adjusted.
Wheel support device for small electric passenger car. The method of claim 1,
The axle is made of a pipe shape having an elastic, the wheel support device for a small electric passenger carriage that can absorb the flow generated during the driving with the elastic of the wheel and the axle.

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