JPH10217956A - Running device for carrier vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain the carrier vehicle from meandering and moving up and down even at the time of running over the curves and acceleration/deceleration operations, thereby keep a stable running condition, and furthermore, enhance accuracy in position of stop. SOLUTION: In this device, a main guide roller bracket 9 is provided with a main guide roller 6 which is rotated while being brought into contact with one side surface of a rail 3, and an auxiliary guide roller bracket 10 is provided with an auxiliary guide roller 7 which is rotated while being brought into contact with the side surface at the opposite side of the rail 3, respectively, and concurrently an energizing mechanism 12 is arranged to energize the main guide roller 6 and the auxiliary guide roller 7 to the direction that they can be mutually approached. Thus, the rail 3 is held by the main guide roller 6 and the auxiliary guide roller 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling device for a transport vehicle, and more particularly to a travel device for a transport vehicle traveling on rails.

[0002]

2. Description of the Related Art Conventionally, in a transportation vehicle traveling on rails, for example, as shown in FIG.
The flanges 20a and 21a are formed inside 1 and the treads of the wheels 20 and 21 are formed as inclined surfaces (conical surfaces). Thereby, the wheels 20 and 21 are connected to the rails 2 and 3
The wheels 20 and 21 are smoothly guided by the rails 2 and 3 even in a curved portion, while preventing the wheels from falling off.

[0003]

However, in the above-described conventional traveling apparatus for a transport vehicle, the wheels 20, 21 can be smoothly rolled by being guided by the rails 2, 3 even in a curved portion. In order to achieve this,
It is necessary to form a gap between the rails a and 21a and the rails 2 and 3. For this reason, the meandering and vertical movement of the carrier occurs during curve running or acceleration / deceleration operation, and a stable running state is maintained. In addition, there is a problem that positioning becomes difficult when stopping.

[0004] The present invention solves the problems of the above-described conventional transporting vehicle traveling device, and suppresses meandering and vertical movement of the transporting vehicle even during curved traveling or acceleration / deceleration operation, thereby achieving a stable traveling state. It is an object of the present invention to provide a traveling device for a transport vehicle, which can maintain the positioning accuracy and improve the positioning accuracy at the time of stopping.

[0005]

In order to achieve the above object, a traveling device for a carrier according to the present invention comprises a main guide roller, which rotates while contacting one side of a rail with a main guide roller bracket, and an auxiliary guide roller bracket, An auxiliary guide roller that rotates while being in contact with the opposite side surface of the rail is provided, and an urging mechanism that urges the main guide roller and the auxiliary guide roller in a direction approaching each other provides a main guide roller. And the auxiliary guide roller sandwiches the rail.

[0006] Since the transport vehicle travels while holding the rail between the main guide roller and the auxiliary guide roller, the position of the wheels with respect to the rail can be stably maintained at a predetermined position. Even at this time, the meandering and vertical movement of the carrier can be suppressed, a stable running state can be maintained, and the positioning accuracy when stopping can be improved.

In this case, the left and right wheels and the main guide roller and the auxiliary guide roller disposed before and after one of the left and right wheels are disposed on a connecting plate that is swingably mounted on the carrier. Can be.

Thus, the position and direction of the wheel with respect to the rail can be stably maintained at a predetermined position.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a traveling apparatus for a carrier according to the present invention. 1 and 2
1 shows an embodiment of a traveling device for a carrier according to the present invention.

At the lower part of the carrier 1 traveling on rails 2 and 3 laid parallel to the floor, facing the left and right of the carrier 1,
In addition, wheels 4 and 5 are provided before and after the carrier 1. No flanges are formed on the wheels 4 and 5, and the treads of the wheels 4 and 5 are formed as flat surfaces (cylindrical surfaces).

The transport vehicle 1 is provided with a main guide roller 6 and an auxiliary guide roller 7 for stable traveling separately from the wheels 4 and 5 for traveling. The main guide roller 6 and the auxiliary guide roller 7 for stable running are arranged so as to sandwich both side surfaces of the rail 2 or the rail 3 (in this embodiment, the rail 3).

In this case, on the lower surface of the carrier 1
A rotating seat 14 is provided, and a connecting plate 13 is attached to the rotating seat 14. Wheel brackets 8,
The wheels 4 and 5 are rotatably mounted on the wheel brackets 8 and 8, respectively.

Main guide roller brackets 9, 9 are suspended from either left or right end (right end in this embodiment) of the connecting plate 13 so as to sandwich the wheel 5 in the front-rear direction. A main guide roller 6, which rotates while being in contact with one side surface of the rail 3, is rotatably attached to the guide roller brackets 9,9.

An auxiliary guide roller bracket 10 is swingably provided on the main guide roller bracket 9 via a pin 11, and the auxiliary guide roller bracket 10 rotates while being in contact with the side surface of the rail 3 on the opposite side. The auxiliary guide roller 7 is rotatably mounted.

At the upper ends of the main guide roller bracket 9 and the auxiliary guide roller bracket 10, a compression spring 12 is disposed as an urging mechanism for urging the main guide roller 6 and the auxiliary guide roller 7 in a direction to approach each other. With this arrangement, the auxiliary guide roller 7 is brought into contact with the side surface of the rail 3 with a predetermined pressing force, whereby the main guide roller 6 and the auxiliary guide roller 7 clamp the rail 3 with a predetermined clamping force. I do.

In this embodiment, the auxiliary guide roller bracket 10 is swingably disposed on the main guide roller bracket 9 via the pin 11.
A configuration in which the auxiliary guide roller bracket 10 is slidably disposed may be employed.

In this embodiment, two wheels 5
The main guide roller 6 and the auxiliary guide roller 7 are disposed so as to sandwich in the front-rear direction. However, the main guide roller 6 and the auxiliary guide roller 7 are disposed at the front position and the rear position of the carrier 1. Can also.

Next, the operation of the traveling device of the carrier will be described. The traveling device of the carrier uses a compression spring 12 as an urging mechanism for urging the main guide roller 6 and the auxiliary guide roller 7 in the approaching direction, and the rail 3 is moved by the main guide roller 6 and the auxiliary guide roller 7. In order to make the transport vehicle 1 travel while holding the vehicle with a predetermined holding force, the positions of the wheels 4 and 5 with respect to the rails 2 and 3 are stably maintained at predetermined positions, that is, the center positions of the rails 2 and 3. Even during curve running or acceleration / deceleration operation, meandering and vertical movement of the carrier can be suppressed, a stable running state can be maintained, and positioning accuracy at the time of stopping can be improved. .

In particular, in this traveling device for a transport vehicle,
Since the main guide roller 6 and the auxiliary guide roller 7 disposed before and after the left and right wheels 4 and 5 and the right wheel 5 are disposed on the connecting plate 13 that is swingably mounted on the carrier 1, The positions and directions of the wheels 4 and 5 with respect to the rails 2 and 3 are set to predetermined positions, that is, the center positions of the rails 2 and 3,
And it can be stably maintained parallel to the rails 2 and 3.

[0020]

According to the traveling apparatus for a transport vehicle of the present invention, the transport vehicle travels while holding the rail between the main guide roller and the auxiliary guide roller, so that the position of the wheels with respect to the rail is stabilized at a predetermined position. It can maintain a stable running state by suppressing meandering and up-and-down movement of the carrier even during curve running and acceleration / deceleration operation, and also improves positioning accuracy when stopping. can do.

Further, the left and right wheels and the main guide roller and the auxiliary guide roller disposed before and after one of the left and right wheels are disposed on a connecting plate that is swingably mounted on the carrier. The position and direction of the wheel with respect to the rail can be stably maintained at a predetermined position.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a traveling device for a transport vehicle according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a front view of a traveling device of a conventional transport vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor vehicle 2 Rail 3 Rail 4 Wheel 5 Wheel 6 Main guide roller 7 Auxiliary guide roller 8 Wheel bracket 9 Main guide roller bracket 10 Auxiliary guide roller bracket 11 Pin 12 Compression spring 13 Connecting plate 14 Rotating seat

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Ichiro Fukuwatari 3-11-1, Shimosakabe, Amagasaki City, Hyogo Prefecture

Claims (2)

[Claims] 1. A main guide roller that rotates while contacting one side surface of a rail is provided on a main guide roller bracket, and an auxiliary guide roller that rotates while contacting an opposite side surface of the rail is provided on an auxiliary guide roller bracket, respectively. By providing an urging mechanism that urges the main guide roller and the auxiliary guide roller in the approaching direction, the rail is sandwiched by the main guide roller and the auxiliary guide roller. Traveling device. 2. The vehicle according to claim 1, wherein the left and right wheels and a main guide roller and an auxiliary guide roller disposed before and after one of the left and right wheels are disposed on a connecting plate swingably mounted on the carrier. The traveling device for a transport vehicle according to claim 1, wherein: