KR101749027B1 - Steering Interoperable Steering Cart - Google Patents

Steering Interoperable Steering Cart Download PDF

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Publication number
KR101749027B1
KR101749027B1 KR1020150096112A KR20150096112A KR101749027B1 KR 101749027 B1 KR101749027 B1 KR 101749027B1 KR 1020150096112 A KR1020150096112 A KR 1020150096112A KR 20150096112 A KR20150096112 A KR 20150096112A KR 101749027 B1 KR101749027 B1 KR 101749027B1
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KR
South Korea
Prior art keywords
steering
wheel
front wheel
angle
interlocking
Prior art date
Application number
KR1020150096112A
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Korean (ko)
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KR20170005698A (en
Inventor
안정근
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안정근
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Priority to KR1020150096112A priority Critical patent/KR101749027B1/en
Publication of KR20170005698A publication Critical patent/KR20170005698A/en
Application granted granted Critical
Publication of KR101749027B1 publication Critical patent/KR101749027B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/001—Steering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/02—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/05—Details of the attachment of the wheel assembly to the chassis

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

[0001] The present invention relates to a steering interlocking vehicle, and more particularly, A front wheel part located at a front side from a lower side of the car body part and supporting the car body part and having at least one wheel (front wheel) so that the car body can move; A rear wheel portion located at a rear side from the lower side of the carbody portion and supporting the carbody portion and having at least one wheel (rear wheel) for moving the carbody portion; And a steering unit provided at a lower side of the luggage compartment to adjust a front wheel steering angle of the front wheel part (an angle between a front direction of the luggage compartment part and a direction in which the front wheel rolls and advances), wherein a rear wheel steering angle (The angle between the front direction of the vehicle ladder and the direction in which the rear wheel is about to roll) is adjusted by interlocking with the front wheel steering angle by the steering unit, so that when the preceding vehicle is rotated on the cornering road, A technique for preventing a collision caused by a collision to prevent a collision of a cargo transferred during a cargo transfer using a car, and to carry out a safe cargo transfer.

Description

{Steering Interoperable Steering Cart}

The present invention relates to a bogie used to carry a cargo, and more particularly to a bogie used to carry a cargo, in which a preceding bogie carries on a bogie along a bogie following a moving bogie, It is about the car which can be.

In modern society, the volume of logistics distribution is increasing day by day. It is important to categorize and transport it to the destination because there is a large volume of logistics such as large and small cargoes. However, it is also an important problem to prevent the cargo from being damaged when the cargo is transported due to the increase of cargo volume.

One of the main factors causing the breakage of the cargo is that the cargo is damaged by collision or collision when the cargo is transported by using a conveying means such as a bogie. In other words, when one or more bogies are advanced along a bend path, the trailing bogie that follows when the preceding bogie begins to turn or the trailing bogie of the preceding bogie begins to rotate prematurely, .

Among the related arts related to the bogie used to transport the cargo are Korean Patent Laid-Open Publication No. 10-2009-0066388 entitled " Bogie capable of moving forward or backward only or moving forward or backward as needed, hereinafter referred to as Prior Art 1) Korean Utility Model Registration No. 20-00391394 entitled " Vehicle for Transporting Goods, hereinafter referred to as Prior Art 2).

According to the prior art 1, there is disclosed a technique in which a user can easily make a hard-to-hit-and-fro-wrestling so as to be a whole body exercise. However, according to the prior art 1, there is disclosed a technique of moving a bogie to vertically move in a narrow space for cornering. However, since the direction of the rear wheel is fixed or there is no control of the direction of the rear wheel when the bogie or the like is proceeded, There is a problem that the trailing portion of the bogie or bogie that follows when the bogie of the bogie is cornering starts to corner with the bogie so that the rear portion is likely to collide with the surrounding objects.

According to the prior art 2, there is disclosed a technique of a bogie capable of freely adjusting the number of stacking stages, including the height between the bogies, but the prior art 2 also has a problem in that when the bogie passes a curved corner road, .

It is an object of the present invention to provide a bogie capable of safely proceeding along a trail path of a bogie without colliding with a surrounding object at the trailing portion of the bogie running along a curved path have.

In order to accomplish the above object, according to the present invention, there is provided a steering interlocking bogie, comprising: a car frame having a space for loading a predetermined cargo on an upper side; A front wheel part located at a front side from a lower side of the car body part and supporting the car body part and having at least one wheel (front wheel) so that the car body can move; A rear wheel portion located at a rear side from the lower side of the carbody portion and supporting the carbody portion and having at least one wheel (rear wheel) for moving the carbody portion; And a steering unit provided at a lower side of the luggage compartment to adjust a front wheel steering angle of the front wheel part (an angle between a front direction of the luggage compartment part and a direction in which the front wheel rolls and advances), wherein a rear wheel steering angle (The angle between the frontal direction of the vehicle-width portion and the direction in which the rear wheel is about to roll) is adjusted by being interlocked with the front wheel steering angle by the steering portion.

Here, the direction of the rear wheel steering angle, which is adjusted by interlocking with the front wheel steering angle, may be a direction that is opposite to the direction of the front wheel steering angle.

Further, the angle of the rear wheel steering angle, which is coordinated with the front wheel steering angle, may correspond to the angle of the front wheel steering angle.

Here, the wheelhouse may be formed on the lower side of the vehicle body so as not to contact the front wheel or the rear wheel.

Here, another feature may be that a fastening means is provided on the left side or the right side of the luggage compartment for engaging the other luggage compartment of the steering interlocking bogie with the luggage compartment.

Further, the fastening means may be a fastening groove formed on any one of the left and right sides of the luggage part, or a fastening block having a shape corresponding to the fastening groove.

Here, the front wheel may include a front wheel that can rotate while being in contact with the ground, And a front wheel having a front wheel rotation shaft so as to allow the front wheel to rotate, the front wheel being coupled via the front wheel and the front wheel rotation shaft, A support; May be another feature of the present invention.

Here, the rear wheel may include a rear wheel capable of rotating while being in contact with the ground; And a rear wheel rotation shaft provided on the rear wheel so as to allow the rear wheel to rotate. The rear wheel is coupled to the rear wheel via a rear wheel rotation shaft, A support; May be another feature of the present invention.

Here, the steering unit includes: a front steering bar coupled to the vehicle body through the front steering shaft, the front steering wheel being rotated about the front steering shaft by the front wheel steering angle given in a direction of a pulling force from the outside; And a steering guider for guiding the front wheel of the front wheel part to rotate by the front wheel steering angle as the front steering wheel rotates about the front steering shaft by the front wheel steering angle; May be another feature of the present invention.

Further, the steering wheel is coupled to the rear wheel steering shaft via the rear steering shaft via the rear steering shaft by interlocking the steering from the front steering wheel side via the steering guider and rotating about the rear steering shaft by the rear wheel steering angle corresponding to the front wheel steering angle, ; May be further included.

Here, the steering unit includes: a front steering bar coupled to the carbody through the front steering shaft, the front wheel being rotated about a front steering axis by a predetermined angle in a direction of a pulling force from the outside; A front steering guider configured to guide the front steering bar so that the front wheel part forms the front wheel steering angle by the predetermined angle at which the front steering bar rotates about the front steering shaft; A rear steering bar coupled to the vehicle body through the rear steering shaft, the rear steering wheel being rotated about the rear steering shaft by the rear wheel steering angle corresponding to the front wheel steering angle in response to steering from the front steering wheel; And a rear steering guider guiding the rear steering bar so that the rear wheel portion forms the rear wheel steering angle by the predetermined angle at which the rear steering bar is rotated about the rear steering shaft.

The steering interlocking bogie according to the present invention performs cornering only at the point where the rear wheel advances along the path of the front wheel to start the cornering when starting to rotate along the corner road so that the rear portion of the bogie starts to rotate in advance on the cornering road Thereby suppressing collision with nearby objects. In addition, even when a plurality of bogies are opened and connected, the trailing bogie starts to rotate in advance when the preceding bogie rotates on the cornering road because the bogie moves along the course of the preceding bogie, It is possible to prevent breakage of the cargo transported when the cargo is transported using the car, and to transfer the cargo safely.

1 is a perspective view schematically showing a steering interlocking bogie according to an embodiment of the present invention.
2 is a partially exploded perspective view schematically illustrating a steering interlocking bogie according to an embodiment of the present invention.
3 is a side view schematically showing a side view of a steering interlocking carriage according to an embodiment of the present invention.
4 is a perspective view schematically showing a state in which a plurality of steering interlocking bogies are connected according to an embodiment of the present invention.
5 is a plan view schematically showing a steering angle in a steering interlocking bogie according to an embodiment of the present invention.
FIG. 6 is a plan view schematically showing a state in which the steering interlocking bands are connected according to the embodiment of the present invention.
7 is a perspective view schematically showing a state in which a plurality of steering interlocking bogies are connected according to an embodiment of the present invention.
8 and 9 are bottom side views schematically showing the lower side of the steering interlocking carriage according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing a steering interlocking bogie according to an embodiment of the present invention, Fig. 2 is a partially exploded perspective view schematically showing a steering interlocking bogie according to an embodiment of the present invention, Fig. 3 is a cross- FIG. 4 is a perspective view schematically showing a state in which a plurality of steering interlocking bogies according to an embodiment of the present invention are connected, and FIG. 5 is a perspective view schematically showing a steering interlocking bogie according to an embodiment of the present invention. 6 is a plan view schematically showing a state in which a steering interlocking bogie according to an embodiment of the present invention is connected. Fig. 7 is a plan view showing a plurality of steering interlocking bogies according to an embodiment of the present invention, FIG. 3 is a perspective view schematically showing a connected state.

1 to 7, the steering interlocking bogie according to the embodiment of the present invention includes a car braking part, a front wheel part, a rear wheel part, and a steering part.

1 and 2, the right side shown in the drawing will be described as a front side of the steering interlocking bogie 10. In Fig. 5, the left side shown in the drawing is the front side of the steering interlocking bogie 10 do.

The luggage compartment 100 is a part that serves as the vehicle body or base of the lorry. The front wheel part 200 is provided below the car frame 100 to move the steering interlocking carriage 10 and the upper part thereof is shaped like a panel as shown in FIG. It is preferable that the car frame 100 is made of a material having high rigidity.

The front wheel portion 200 is located on the front side from the lower side of the vehicle luggage portion 100. The front wheel part 200 supports the car frame 100. And at least one wheel (front wheel) so that the carbody 100 can move.

The front wheel 200 may include a front wheel 210 and a front wheel support 230.

The front wheel 210 is a wheel provided so as to be able to rotate while rolling on the ground. Is substantially the same as that of the rear wheel (wheel) 310 of the rear wheel unit 300 to be described later. In order to facilitate the understanding and understanding of the description, one side of the steering interlocking bogie 10 is set in the front direction, a wheel provided on the front side is referred to as a front wheel 210 and a rear side wheel, Quot;

Actually, in the case of using the steering interlocking bogie according to the embodiment of the present invention, the traveling direction side in which the steering interlocking bogie moves or pushes the steering interlock bogie will be referred to as front side to front side direction and will be used.

The front wheel 210 may be a wheel capable of rolling smoothly. The front wheel 210 may be made of a plastic material, a lightweight metal material, or a rubber material such as a tire.

The front wheel supporter 230 is provided with a front wheel rotation shaft 235 so that the front wheel 210 can rotate. Here, the front wheel rotation shaft 235 refers to an axis that is a rotational center of the front wheel 210 literally.

The front wheel support body 230 is engaged with the front wheel 210 via the front wheel rotation shaft 235. That is, the front wheel 210 is engaged with the front wheel rotation shaft 235 provided on the front wheel supporter 230 and is rotatably coupled about the front wheel rotation shaft 235.

Further, the front wheel supporter 230 is provided with a front wheel steering shaft 250 so that the front wheel 210 can change directions.

2, the front wheel steering shaft 250 in the front wheel supporter 230 is provided in a direction perpendicular to the lower side of the vehicle body 100, and the front wheel rotational shaft 235 is provided on the front wheel steering shaft 250 As shown in Fig.

The front wheel rotation shaft 235 is provided in a direction perpendicular to the front steering wheel 420 so that the direction of the front wheel 210 can be parallel to the front steering wheel 420.

The front wheel supporter 230 is provided with a front wheel steering key 231 so that the front wheel 210 rotates around the front wheel steering shaft 250 and can change its direction along the front steering wheel 420.

The front wheel steering key 231 is formed parallel to the front wheel steering shaft 250 at a position spaced apart from the front wheel steering shaft 250 by a predetermined distance. The front wheel steering key 231 is located in the steering guide groove 444 formed in the steering guider 440 to be described later. The front wheel steering key 231 is urged to rotate about the front wheel steering shaft 250 by a predetermined angle in accordance with the movement of the steering guider 440 and the front wheel supporter 230 and the front wheel 210 are also rotated do. As a result, the direction is changed or the direction is adjusted.

The front wheel supporter 230 can be rotated by a predetermined angle about the front wheel steering shaft 250 provided in the front wheel supporter 230 and the front wheel 210 is coupled to the front wheel supporter 230, Is also changed by the angle at which the front wheel supporter 230 is rotated.

Here, the predetermined angle of rotation may be referred to as a front wheel steering angle FA. 5, the front wheel steering angle FA is set to a value between the front direction of the vehicle lane 100 (the left side in Fig. 5 may be referred to as the front side of the steering interlocking bogie) and the direction in which the front wheel 210 is rolling Respectively.

The front wheel steering angle FA is given to the steering interlocking bogie 10 through the steering unit to be described later depending on the direction of the force that the user pushes or pushes the steering interlocking bogie 10.

The rear wheel portion 300 is located on the rear side from the lower side of the carbody 100. The rear wheel part 300 supports the luggage compartment 100 like the front wheel part 200. The rear wheel portion 300 includes at least one wheel (rear wheel) so that the car frame 100 can be moved.

The rear wheel 300 preferably includes a rear wheel 310 and a rear wheel support 330.

The rear wheel 310 is a wheel provided so as to be able to rotate while rolling on the ground. It can be said that it is the same as the front wheel 210 of the front wheel unit 200 in that the rear wheel 310 rotates and the bogie 10 can be moved.

One side of the steering interlocking bogie 10 may be set in the front direction and the opposite side may be referred to as a back side direction (rear side direction). A wheel provided on the front side may be provided on the front wheel 210, And the rear side wheel, which is the opposite side, is referred to as a rear wheel 310, as described above.

Actually, in the case of using the steering interlocking bogie 10 according to the embodiment of the present invention, the traveling direction side in which the bogie moves or pushes the bogie will be referred to as front side to front side direction and will be used for convenience.

The rear wheel 120 may be made of a plastic material, a lightweight but rigid metal material, or a rubber material such as a tire.

The rear wheel support body 330 has a rear wheel rotation shaft 335 so that the rear wheel 310 can rotate. Here, the rear wheel rotation shaft 335 refers to an axis that is the rotational center of the rear wheel 310 literally.

And the rear wheel supporter 330 is engaged with the rear wheel 310 via the rear wheel rotation shaft 335. [ That is, the rear wheel 310 is fitted to the rear wheel rotation shaft 335 provided on the rear wheel support body 230 and rotatably coupled to the rear wheel rotation shaft 335.

Further, the rear wheel supporter 330 is provided with a rear wheel steering shaft 350 so that the rear wheel 310 can change directions.

2, the rear wheel steering shaft 350 in the rear wheel supporter 330 is provided in a direction perpendicular to the lower side of the vehicle frame 100 and the rear wheel rotational shaft 335 is provided in the rear wheel steering shaft 350, As shown in Fig.

The rear wheel rotation shaft 335 is provided in a direction perpendicular to the front steering wheel 420 so that the direction of the rear wheel 310 can be parallel to the front steering wheel 420.

A rear wheel steering key 331 is provided on the rear wheel supporter 330 so that the rear wheel 310 rotates about the rear wheel steering shaft 350 and can be changed in direction along the front steering wheel 420.

The rear wheel steering key 331 is formed parallel to the rear wheel steering shaft 350 at a position spaced apart from the rear wheel steering shaft 350 by a predetermined distance. The rear wheel steering key 331 is located in the steering guide groove 444 formed in the steering guider 440 to be described later.

The rear wheel steering key 331 is urged to rotate about the rear wheel steering shaft 250 by a predetermined angle in accordance with the movement of the steering guider 440 and the rear wheel support 330 and the rear wheel 310 are also rotated do. As a result, the direction is changed or the direction is adjusted.

The rear wheel support 330 can be rotated about the rear wheel support shaft 330 by a predetermined angle around the rear wheel steering shaft 350 provided on the rear wheel support 330. Since the rear wheel 310 is coupled to the rear wheel support 330, Is changed by the angle at which the rear wheel supporter (330) is rotated.

Here, the predetermined angle of rotation may be referred to as a rear wheel steering angle RA. 5, the rear wheel steering angle RA refers to an angle between a front direction of the vehicle lane 100 and a direction in which the rear wheel 310 is to be rolled.

This rear wheel steering angle RA is adjusted by a user of the steering interlocking bogie 10 through a steering portion to be described later according to the direction of the force of pushing or pushing the steering interlocking bogie 10. [

The wheel house 110, which may be formed in the vehicle lane 100, will now be described with respect to the front wheel 200 and the rear wheel 300 as described above.

The wheel house 110 is formed concavely in the lower side of the car body 100 so that the front wheel 210 of the front wheel section 200 or the rear wheel 310 of the rear wheel section 300 does not contact the car body 100 .

That is, when the lower side of the car body 100 touches the front wheel 210 or the rear wheel 310, the front wheel 210 or the rear wheel 310 is prevented from rolling, and the movement of the car 10 becomes difficult. It is preferable that the wheel house 110 is formed concavely so that the front wheel 210 and the rear wheel 310 do not touch the lower side of the vehicle frame 100.

Of course, if the front wheel 210 or the rear wheel 310 is not in contact with the lower side of the car rack 100, the wheel house 110 may not necessarily be present. However, in order to connect the front wheel part 200 and the rear wheel part 300 to the vehicle body part 100 so that the front wheel 210 or the rear wheel 310 does not touch the lower side of the vehicle body part 310, The height up to the car top 100 can be increased.

When the distance (height) between the luggage compartment 100 and the ground increases, the center of gravity of the luggage carrying the luggage becomes higher. Therefore, when the luggage is separated from the upper side of the luggage compartment 100 during the movement of the luggage compartment, The possibility of inclination or overturning becomes large.

Therefore, in order to increase the diameter of the front wheels 210 and the rear wheels 310 while lowering the height between the vehicle luggage compartment 100 and the ground surface, It is preferable that a space for the wheel house 110 is provided and the front wheel 210 or the rear wheel 310 can rotate in the space inside the wheel house 110. [

Next, in describing the steering unit, the left side shown in Fig. 5 will be described with reference to the front side of the steering interlocking bogie.

The steering portion is provided on the lower side of the luggage compartment 100 to adjust the front wheel steering angle FA of the front wheel 200. The rear wheel steering angle of the rear wheel portion 300 is adjusted by being interlocked with the front wheel steering angle FA by the steering portion.

Here, the direction of the rear wheel steering angle RA, which is adjusted in conjunction with the front wheel steering angle FA, is adjusted by the steering unit in such a direction as to be contrasted with the direction of the front wheel steering angle FA.

Here, the collated direction refers to the opposite direction in which the direction of the front wheel steering angle FA is not parallel to the direction of the rear wheel steering angle RA. In other words, as shown in FIG. 5, when the front wheel steering angle FA is adjusted to the right with respect to the front direction, the rear wheel steering angle RA is adjusted to be directed to the left with respect to the front direction.

More preferably, the angle of the rear wheel steering angle RA, which is adjusted in conjunction with the front wheel steering angle FA, is adjusted by the steering unit so as to correspond to the angle of the front wheel steering angle FA.

For example, if the direction of the front wheel steering angle FA is the rightward direction with respect to the front direction of the vehicle lane 100 and the angle of the front wheel steering angle is about 30 degrees, the rear wheel steering angle associated therewith is, And the angle of the rear wheel steering angle RA is adjusted to be about 30 degrees corresponding to the angle of the front wheel steering angle FA.

This steering portion may include the front steering bar 420 and the steering guider 440.

The front steering wheel 420 rotates about the front steering shaft 423 by the front wheel steering angle FA given in the direction of the pulling force from the outside. This front steering bar 420 is engaged with the carbody 100 via the front steering shaft 423.

The front wheel 210 of the front wheel portion 200 and the front wheel steering angle FA are moved in the same direction as the front steering wheel 420 rotates about the front steering shaft 423 by the front wheel steering angle FA, As shown in FIG.

The front steering wheel 420 is provided with a front steering key 421 so that the front steering wheel 420 and the steering guider 440 can rotate the front wheel 210 by the angle of the front wheel steering angle FA. Steering guide grooves 442 and 444 are formed in the steering guider 440.

The front steering key 421 provided on the front steering wheel 420 is inserted into the steering guide groove 442 of the steering guider 440 and positioned inside the steering guide groove 442. [

The front end of the front steering bar 420 is rotated left or right by the front wheel steering angle FA about the front steering shaft 423 in accordance with the direction of the force exerted from the outside.

Accordingly, the front steering key 421 located at the rear end side in the front steering wheel 420 is rotated right or left by the front steering angle FA in the opposite direction about the front steering shaft 423.

Here, the front steering key 421 is moved leftward or rightward by the front steering angle FA about the front steering shaft 423, but inside the steering guide hole 442 of the steering guider 440. The front steering key 421 pushes the steering guider 440 to the left or right side while moving inside the steering guide hole 442.

Here, the front wheel steering key 231 is positioned inside the other steering guide groove 444 provided in the steering guider 440. [ The front wheel steering key 231 is fixedly coupled to the front wheel supporter 230 as shown in the figure.

The steering guide groove 444 is also moved to the left or right side by pushing the steering guider 440 to the left or right side with respect to the front direction of the steering interlocking bogie 10 by the front steering key 421, The front wheel steering key 231 located on the inner side of the front wheel steering shaft 444 is pushed to the left or right side.

The front wheel steering key 231 is moved from the steering guider 440 to the left or right together with the steering guider 440 when the steering guider 440 is moved to the left or right by force.

Here, the front wheel steering key 231 is moved to the left or right by the steering guider 440, and is turned left or right about the front wheel steering shaft 250.

The front wheel supporter 230 is coupled to the front wheel supporter 230 such that the front wheel supporter 230 rotates about the front wheel steering shaft 250. When the steering guider 440 pushes the front steering key 421, Thereby rotating the front wheel steering shaft 250 about the axis. The front wheel 210 connected to the front wheel supporter 230 also rotates about the front wheel steering shaft 250 together with the front wheel supporter 230.

The front steering wheel 420 is rotated about the front steering shaft 423 by the front wheel steering angle FA given in the direction of the pulling force from the outside and the front wheel steering angle 230 and the front wheel 210 are rotated by the front wheel steering angle FA.

Here, the steering guide grooves 442 and 444 are elongated by a predetermined length in parallel to each other in the steering guider 440, and the front steering key 421 is located in the steering guide groove 442. [ The front wheel steering key 231 of the front wheel supporter 230 is located in the steering guide groove 444 and the front wheel 210 and the front steering wheel 420 are kept parallel to each other. When the front steering wheel 420 rotates to the left or right by the front wheel steering angle FA, the front wheel 210 also rotates to the left or right by the front wheel steering angle FA to become parallel with the front steering wheel 420. [

The maximum angle of the front wheel steering angle FA may be determined according to the length of the steering guide grooves 442 and 444. [ If the length of the steering guide grooves 442 and 444 is long, the range in which the front steering key 421 and the front wheel steering key 231 can move is widened in the steering guide grooves 442 and 444, The range of angles that can be obtained also becomes large. Therefore, the maximum angle that can be tolerated by the front wheel steering angle FA when manufacturing the steering interlocking carriage 10 may be determined through the length of the steering guide grooves 442 and 444. [

Next, a description will be given of how the rear wheel steering angle RA is adjusted by the steering guider 440 in conjunction with the front wheel steering angle FA.

The rear wheel 310 connected to the rear wheel supporter 330 of the rear wheel portion 300 moves to the rear wheel steering shaft 350 while the steering guider 440 moves to the left or right via the front steering wheel 420, And is rotated to the left or right by the rear wheel steering angle RA as the center.

To this end, the steering guider 440 has a steering guide groove 448 connected to the rear wheel 300 side. Here, it is preferable that the plurality of steering guide grooves 444 and 448 are formed at positions which are equal distance symmetrical with respect to the center line SL of the steering guider 440 as shown in the figure.

Here, the center line SL is a virtual center line passing through the middle point of the distance between the front wheel steering shaft 250 (or the front steering shaft 423) and the rear wheel steering shaft 350 (or rear steering shaft 463) The front side and the rear side of the bogie 10 are symmetrical with respect to the line.

A plurality of steering guide grooves 444 and 448 are formed symmetrically with respect to the center line SL of the steering guider 440 at equal distances and when the steering guider 440 is moved to the left or right, The front steering key 421 and the rear steering key 461 located in the guide grooves 444 and 448 move along the steering guide grooves 444 and 444 to approach each other with respect to the center center line SL of the steering guider 440, And moves away.

That is, the front steering key 421 and the rear steering key 461 move symmetrically with respect to the center line SL of the steering guider 440.

The rear wheel supporter 330 rotates about the rear wheel steering shaft 350 while the rear wheel 310 is rotated by the rear wheel support 330 and the rear wheel 310 via the rear wheel rotation shaft 335, RA).

Through such interlocking, the rear wheel steering angle RA is adjusted so as to correspond to the angle of the front wheel steering angle FA in the direction opposite to the direction of the front wheel steering angle FA.

The lower surface of the vehicle frame 100 and the upper surface of the steering guider 440 (the surface facing the vehicle frame 100) are formed to be more stable and smooth, A steering guider assist means can be provided.

The guide rail 151 and the guide wheel 153 are shown in Fig. 2 as an example of such steering guider assist means. 5, the guide rail 151 is provided on the center line SL (see FIG. 5) of the lower side of the car rack 100, and the guide wheel 153 reciprocates along the guide rail 151 And is mounted on the upper side of the steering guider 440. The guide guider 440 can be stably moved to the left or right with respect to the front direction of the vehicle lid 100 while the guide wheel 153 rolls along the groove formed in the guide rail 151. [

The steering unit may further include a rear steering wheel 460.

The rear steering wheel 460 is interlocked via the steering guider 440 with the steering wheel from the front steering wheel 420 and rotates around the rear steering shaft 463 by the rear wheel steering angle RA, which is contrasted with the front wheel steering angle FA. And is engaged with the vehicle lug 100 through the rear steering shaft 463. [

The basic principle or operating mechanism for the movement or operation of the rear steering wheel 460 is very similar to the front steering wheel 420 described above. The front steering wheel 420 receives the force and the direction from the outside so that the steering guider 440 is moved so that the front wheel 210 and the rear wheel 310 of the steering interlocking bogie 10 change directions. (460) transmits the force and direction transmitted through the front steering bar 420 and the steering guider 440 to the front steering of the following steering interlocking bogie so that the succeeding steering interlock bogie 10 can be interlocked This is the difference in terms of role.

The rear steering wheel 460 is provided to be symmetrical with respect to the front steering wheel 420 on the basis of the center line SL of the carbody 100 as shown in Fig. The rear steering wheel 460 is provided with a rear steering key 461 like the front steering wheel 420. The rear steering key 461 is located in the steering guide groove 446 of the steering guider 440 and moves under the force in the steering guide groove 446.

The rear steering bar 460 receives a force rotating about the rear steering shaft 463 via the rear steering key 461 and is rotated by the rear wheel steering angle RA. The longitudinal direction of the rear steering wheel 460 is maintained parallel to the direction of the rear wheel 310.

The imaginary center line along the longitudinal direction of the front wheel steering band 420 and the imaginary center line along the longitudinal direction of the rear steering band 460 are extended at a point on the center line SL of the vehicle frame 100. [ 5) from the front steering shaft 423 to the rear steering shaft 463 (RL, see Fig. 5) are preferably equal. When the distance FL (see FIG. 5) and the distance RL (see FIG. 5) are equal to each other, the front wheel steering angle FA and the rear wheel steering angle RA become equal. 5) from the front steering shaft 423 to the imaginary center line SL and the rear wheel steering angle RA from the rear steering shaft 463 when the front wheel steering angle FA and the rear wheel steering angle RA are equal to each other, The distance RL to the center line SL (see Fig. 5) becomes equal.

At the end of the rear steering wheel 460, it is preferable to provide a means capable of interlocking with another steering interlocking bogie 10 as shown in Figs. The rear steering bar 460 of one steering interlocking bogie 10 and the front steering bar 420 of another steering interlock bogie 10 are coupled to each other as shown in Figs. 4 and 6, (Refer to FIG. 6).

As shown in FIGS. 4 and 6, when the rear steering bar 420 and the front steering bar 460 are coupled so as to be rotatable about the coupling portion J as a joint, the steering between the steering interlocking bogie 10 is interlocked do. That is, as described above, the front wheel steering angle FB of the steering interlocking brakes connected next to the rear wheel steering angle RB of one steering interlocking truck 10 is interlocked.

Here, if the distance RD from the rear steering shaft to the coupling point J and the distance FD from the front steering shaft to the coupling point J are equal to each other as vertices of the coupling portion J, The rear wheel steering angle RB and the front wheel steering angle FB of the two steering interlocking bogies having the point J therebetween are equal to each other. In this way, the steering between the steering interlocking bogies can be interlocked.

In this way, when the steering interlocking bogie 10 has N + 1 (N: a positive integer), the N + 1 steering interlocking bogie 10 are sequentially connected by heat and the Nth steering interlocking bogie 6) so that the front end of the front steering bar 420 of the (N + 1) th steering interlocking bogie 10 can be pivoted to the rear end of the rear steering bar 460 of the front steering wheel 10, The front wheel steering angle of the (N + 1) th steering interlocking carriage 10 can be interlocked with the front wheel steering angle of the Nth steering interlocking truck 10.

When the steering interlocking bogie 10 is interlocked with the steering interlocking bogie 10, the following steering interlocking bogie 10 does not immediately start to rotate together with the steering interlocking bogie 10 rotating before, So as to rotate. Therefore, it is preferable to proceed safely.

Meanwhile, in order to further secure the expandability of the steering interlocking carriage 10, it is also possible to provide a fastening means on the vehicle frame 100.

It is preferable that fastening means is provided on the left side or the right side of the luggage compartment 100 so as to be fastened to the luggage compartment 100 of the other steering interlocking carriage 10. [

Depending on the cargo, it may be required that the area of the vehicle frame 100 is large. In this case, it is preferable that a plurality of steering interlocking bogies 10 can be coupled as if they are one steering interlocking bogie 10 so that they can be dealt with immediately.

For this purpose, it is preferable that the left and right sides of the vehicle frame 100 can be fastened to the vehicle frame 100 of another steering interlocking carriage as shown in FIG.

The fastening means 170 and the fastening means 160 are formed on the left and right sides of the fastening means 160 and 170 and the fastening groove 160 is formed on the other side of the fastening means 170 so as to correspond to the fastening groove 170 . A coupling block 160 having a shape corresponding to the coupling groove 170 is formed on the right side surface of the carbody 100 of the other steering interlocking bogie with a concave coupling groove 170 on the left side of one steering interlocking bogie 10, May be inserted to engage the luggage compartment 100 with each other.

As described above, it is preferable to fasten the luggage portions 100 of two or more steering interlock brakes so that the total area size of the luggage portion 100 can be made larger, as shown in Fig.

Next, the steering interlocking bogie according to another embodiment of the present invention will be briefly described with reference to Figs. 8 and 9, but the parts overlapping with those in the above-described embodiment will be omitted, .

8 and 9 are views schematically showing the lower side of the steering interlocking carriage according to another embodiment of the present invention.

Referring to FIGS. 8 and 9, the steering interlocking bogie according to another embodiment of the present invention also includes a vehicle bogie, a front wheel, a rear wheel, and a steering unit, as in the above-described embodiment. Here, the front wheel portion, the rear wheel portion, and the carbody portion are similar to those in the above-described embodiment, and the steering portion and the embodiment are slightly different from each other in the above-described embodiment.

In the above-described embodiment, an embodiment in which one steering guider 440 (see Fig. 2) is provided in the steering portion has been described. In the embodiment described below, two steering guiders are provided, and the front steering bar 520 and the rear steering bar 620 are directly connected through the steering interlocking groove 650 and the steering interlocking key 551 There are differences in points. However, basically, the principle that the steering is interlocked is equivalent.

8 and 9, the left side is the front direction.

The front steering bar 520 is rotated about the front steering shaft 523 by a predetermined angle, that is, the front wheel steering angle, when the front steering bar 520 receives a driving force from the outside to the left or right . The front steering key 521 and the steering interlock key 551 are rotated in the left direction about the front steering shaft 523 when the front end of the front steering wheel 520 is subjected to a forward turning force. The front steering key 521 pushes the front steering guider 500 while rotating in the left direction in the steering guide groove 511. [ So that the front steering guider 500 is moved to the left. The front steering guider 500 moves leftward and pushes the front wheel steering key 231 in the steering guide groove 510 to the left. The front wheel steering key 231 moves to the left side to rotate the front wheel 200. Therefore, as in the above-described embodiment, the direction of the front wheel is changed to the right direction so as to be parallel to the front steering wheel 520.

On the other hand, the steering interlock key 551 formed on the rear end side of the front steering wheel 520 rotates about the front steering shaft 523 in the same direction as the front steering key 521. The steering interlock key 551 is located in the steering interlock groove 650 formed in the rear steering bar 620 and pushes the steering interlock groove 650. As a result, the rear steering bar 620 rotates about the rear steering shaft 623 as shown in FIG.

The rear steering wheel 620 is rotated to push the rear steering guider 600. When the front steering guider 500 moves to the left, the rear steering guider 600 also moves to the left. The rear steering guider 600 of the rear steering wheel 620 pushes the rear steering guider 600 to the left side in the steering guide groove 611 and the rear steering guider 600 moves to the left side, The rear wheel steering key 331 in the steering guide groove 610 of the rear wheel 300 rotates the rear wheel 300. As a result, the direction conversion is performed as shown in FIG.

In this way, the front steering bar 520 directly rotates the rear steering bar 620 by a predetermined angle, so that the front wheel 200 and the rear wheel 300 can be switched in direction.

Reference numerals SL in FIGS. 8 and 9 denote the center line of the steering interlocking carriage. The middle center line SL passes through a middle point between the front steering shaft 523 of the front wheel portion 200 and the rear steering shaft 623 of the rear wheel portion 300 And the front wheel side and the rear wheel side are symmetrical with respect to the center line.

As described above, the steering interlocking bogie according to the present invention performs cornering only at the point where the rear wheel advances along the path of the front wheel to start the cornering when the steering interlocking bogie starts to rotate along the corner road, There is an advantage that the occurrence of collision with surrounding objects can be suppressed by starting rotation in advance. In addition, even when a plurality of bogies are opened and connected, the trailing bogie starts to rotate in advance when the preceding bogie rotates on the cornering road because the bogie moves along the course of the preceding bogie, It also has the advantage of preventing damage to cargo transported during cargo transportation using bogies and transporting cargo safely.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the scope of the present invention is to be construed as being limited only by the embodiments, and the scope of the present invention should be understood as the following claims and their equivalents.

100: Car loan 110: Wheel house
200: front wheel 210: front wheel
230: front wheel support body 231: front wheel steering key
250: front wheel steering shaft 235: front wheel rotating shaft
300: rear wheel part 310: rear wheel
330: rear wheel support 350: rear wheel steering shaft
335: rear wheel rotation shaft 331: rear wheel steering key
420: front steering wheel 440: steering guider
460: rear steering wheel

Claims (11)

A steering interlocking bogie which can be connected to the front side or the rear side successively,
A car main body having a space on the upper side for loading a predetermined cargo;
A front wheel part located at a front side from a lower side of the car body part and supporting the car body part and having at least one wheel (front wheel) so that the car body can move;
A rear wheel portion located at a rear side from the lower side of the carbody portion and supporting the carbody portion and having at least one wheel (rear wheel) for moving the carbody portion; And
And a steering unit provided on a lower side of the vehicle body to adjust a front wheel steering angle of the front wheel (an angle between a front direction of the vehicle and a direction in which the front wheel rolls)
The rear wheel steering angle of the rear wheel portion (the angle between the frontal direction of the vehicle ladder and the direction in which the rear wheel is about to roll) is adjusted by interlocking with the front wheel steering angle by the steering portion,
Wherein an angle of the rear wheel steering angle, which is adjusted by interlocking with the front wheel steering angle, corresponds to an angle of the front wheel steering angle, and the angle of the front wheel steering angle,
The steering unit,
When the steering portion of the steering interlocking carriage connected to the rear side is connected to the rear side,
And the steering can be interlocked to the steering interlocking bogie side that follows the steering interlocking bogie. delete delete The method according to claim 1,
On the lower side of the car body portion,
And a wheel house is formed concavely so as not to be in contact with the front wheel or the rear wheel. The method according to claim 1,
On the left side or the right side of the car part,
And a fastening means for fastening the other steering interlocking bogie with the vehicle body portion is provided. 6. The method of claim 5,
The fastening means,
And a coupling block having a shape corresponding to the coupling groove formed on any one of the left side surface and the right side surface of the vehicle body portion or the coupling groove. The method according to claim 1,
The front-
A front wheel capable of rotating while being in contact with the ground; And
A front wheel support shaft coupled to the front wheel via a front wheel steering shaft provided with a front wheel rotation shaft so as to allow the front wheel to rotate via the front wheel and the front wheel rotation shaft, And a braking system for braking the braking system. The method according to claim 1,
The rear-
A rear wheel capable of rotating while being in contact with the ground; And
A rear wheel support shaft coupled to the rear wheel via a rear wheel steering shaft provided to the rear wheel so as to be able to rotate the rear wheel via the rear wheel and the rear wheel rotation shaft, And a braking system for braking the braking system. The method according to claim 1,
The steering unit includes:
A front steering bar coupled to the vehicle body through the front steering shaft, the front steering wheel being rotated about the front steering axis by the front wheel steering angle given in the direction of a pulling force from the outside;
A steering guider for guiding the front wheel of the front wheel part to rotate by the front wheel steering angle as the front steering wheel rotates about the front steering shaft by the front wheel steering angle; And
A rear steering bar coupled to the rear wheel steering shaft via the rear steering shaft, the rear steering wheel being rotated about the rear steering wheel by the rear wheel steering angle corresponding to the front wheel steering angle in response to the steering from the front steering wheel side via the steering guider; Lt; / RTI >
Wherein the front steering bar of the steering interlocking bogie is connected to the rear steering bar so that the steering is linked to the steering interlocking braking side that follows the steering interlocking bogie. delete The method according to claim 1,
The steering unit includes:
A front steering bar coupled to the vehicle body through the front steering shaft, the front steering wheel being rotatable about a front steering axis by a predetermined angle in a direction of a pulling force from the outside;
A front steering guider configured to guide the front steering bar so that the front wheel part forms the front wheel steering angle by the predetermined angle at which the front steering bar rotates about the front steering shaft;
A rear steering bar coupled to the vehicle body through the rear steering shaft, the rear steering wheel being rotated about the rear steering shaft by the rear wheel steering angle corresponding to the front wheel steering angle in response to steering from the front steering wheel; And
A rear steering guider configured to guide the rear wheel portion to the rear wheel steering angle by the predetermined angle at which the rear steering wheel rotates about the rear steering shaft; Lt; / RTI >
Wherein the front steering bar of the steering interlocking bogie is connected to the rear steering bar so that the steering is linked to the steering interlocking braking side that follows the steering interlocking bogie.
KR1020150096112A 2015-07-06 2015-07-06 Steering Interoperable Steering Cart KR101749027B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150096112A KR101749027B1 (en) 2015-07-06 2015-07-06 Steering Interoperable Steering Cart

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150096112A KR101749027B1 (en) 2015-07-06 2015-07-06 Steering Interoperable Steering Cart

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KR20170005698A KR20170005698A (en) 2017-01-16
KR101749027B1 true KR101749027B1 (en) 2017-06-20

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200488511Y1 (en) 2018-12-10 2019-06-12 김미원 Cargo transportation with movable steps
CN115804611B (en) * 2023-02-03 2023-08-18 中国人民解放军北部战区总医院 Driving chassis for X-ray machine and X-ray machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200298560Y1 (en) * 2002-09-05 2002-12-20 한국 리-만 (주) Trolley for carrying a freight
JP2005119521A (en) * 2003-10-17 2005-05-12 Hiroshi Nishio Conveying carriage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200298560Y1 (en) * 2002-09-05 2002-12-20 한국 리-만 (주) Trolley for carrying a freight
JP2005119521A (en) * 2003-10-17 2005-05-12 Hiroshi Nishio Conveying carriage

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