JPH11235976A - Transport trolley - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A conventional transport trolley is an unmanned transport trolley traveling on a track, and it is necessary to perform a transport operation using a road traveling forklift or the like on a route that must travel on a road. The transshipment work of the luggage for that occurred,
The transfer route is inflexible and the transfer efficiency is poor. In addition, a road surface requires a driver, so that a large amount of luggage cannot be transferred at one time, and the transfer cost is high. Therefore, it was necessary to develop a transport trolley capable of performing both track running and road running. SOLUTION: This is a transportation vehicle having a drive wheel, a traveling wheel provided with rubber or lining, a track traveling guide, a position detector, a position control device and a traveling wheel stabilizing device. A transport trolley that releases the stabilizer and performs centering using the track running guide, and stores the track running guide when the vehicle is traveling on a road surface and centers it using the position detector.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic guided vehicle for transporting products or raw materials, which can be used for both traveling on a road and traveling on a plane.

[0002]

2. Description of the Related Art Conventionally, for transporting products or raw materials, an unmanned transport truck orbiting a forklift or a flat traveling truck using metal wheels on rails has been used individually for transport. An unmanned transport truck traveling on a track can transport a large amount of luggage unmanned at low cost.However, in a transport operation in which both road traveling and track traveling must be performed, the traveling from the track traveling to the road traveling or from the road traveling to the track traveling extends. In the case of such a transfer route, for example, for the transfer of an outdoor temporary coil, a transfer operation of a coil from a truck to a forklift or the like occurs. Also,
A flat forklift or the like is a transfer operation performed by a driver, and the transfer capacity is also limited. In addition, there is a large difference in the structure between sharing the track and traveling on a flat surface of the transport vehicle.
Heretofore, no shared carrier has been manufactured. For this reason, separate transport devices have conventionally been used.

[0003]

As described above, the conventional transport device is an unmanned transport truck traveling on a track, and loads are reloaded on a route that must travel on a road surface. There is a problem that flexibility is poor and transport efficiency is poor. In addition, there is a problem that a forklift or the like traveling on a road requires a driver, and cannot transport a large amount of luggage at a time, and the transportation cost is high. In order to solve these problems, the present invention is to attach a device required for road surface traveling to a conventional track traveling carrier, develop a carrier capable of performing both track traveling and road traveling, and restrict operating conditions. The goal is to eliminate the problem and achieve efficient operation.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a driving wheel, rubber or lining running wheel, a track running guide, a position detector,
A transport trolley having a position control device and a traveling wheel stabilizing device, wherein the traveling wheel stabilizing device is released during track running and centered by a track running guide, and the track running guide is stored and centered by a position detector during road running. It is intended to provide a transport cart.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a carrier according to the present invention. FIG. 1 is a side view of the transport vehicle of the present invention, FIG. 2 is a plan view of the transport vehicle of the present invention, and FIG. 3 is a front view of the transport vehicle of the present invention. FIG. 4 is a track running sectional view of a traveling wheel provided with rubber, and FIG. 5 is a track running sectional view of a traveling wheel provided with a lining. The traveling vehicle 2 of the present invention has traveling wheels 2 installed on the front and rear sides of the traveling vehicle main body 1 via a pair of upper and lower traveling wheel mounting frames 10 in FIG. I'm touching. The traveling wheel 2 does not have a brim like a conventional carrier, and the rubber 8 or the lining 9
Therefore, the track running guide 4 for track running is installed at the tip of the track running guide mounting frame 17. Further, in the transport vehicle of the present invention, a pair of drive wheels 3 are installed on a drive wheel mounting frame 18 at the center of the transport vehicle body 1, and each is directly driven by the rotation of the motor 11. Furthermore, the position detector 5 for traveling on a road surface,
A position control device 6 and a traveling wheel stabilizing device 7 are mounted.

The transport vehicle 1 of the present invention operates with the track running guide 4 in the operating state during track running. The operation of the track running guide 4 is controlled by the track running guide switching cylinder 12.
Is operated to project the rod of the cylinder 12 downward, thereby moving the track traveling guide mounting frame 17 downward with the track traveling guide switching pin 13 as a fulcrum. At this time, the track running guide 4 installed at the tip of the track running guide mounting frame 17 directly contacts the side surface of the rail 14 and is switched to the operating state. That is, by bringing the track running guide 4 into direct contact with the rail 14,
The traveling direction of the traveling wheel 2 is restricted. During orbit transfer, the traveling wheel stabilizing device 7 for stabilizing the traveling wheel 2 is released. Further, data on the traveling direction of the transport vehicle 1 from the track traveling guide 4 is sent to the position control device 6, and the driving wheel traveling stabilizing cylinder 1 is transmitted by a signal from the position control device 6.
Activate 5 The signal from the position control device 6 to the drive wheel traveling stabilizing cylinder 15 is a signal that has the same traveling direction as the track traveling guide 4. At this time, the traveling direction of the drive wheel 3 is restrained by adjusting the direction of the drive wheel mounting frame 18 via the drive wheel travel stabilizing pin 16 by operating the drive wheel travel stabilizing cylinder 15. As a result, the centering of the transport vehicle 1 during the track traveling is reliably performed.

The transport vehicle 1 of the present invention operates with the position detector 5 in an operating state when traveling on a road surface. Position detector 5
Is a sensor capable of detecting the position of the carrier 1. In the present invention, a position detector 5 having a wheel mechanism and capable of grasping the traveling distance and traveling direction of the carrier 1 is used. By installing the position detector 5, the transport vehicle 1 according to the present invention is brought into an operating state in which it can travel on a road surface. The traveling distance and the traveling direction of the carrier 1 are measured by the installed position detector 5, and the data is sent to the position controller 6. Based on the data sent from the position detector 5, the position control device 6 calculates the difference between the distance between the position of the carrier 1 and the target position at that time, and determines the traveling direction of the carrier 1. When the traveling direction of the transport vehicle 1 is determined, the signal processed by the position control device 6 is transmitted to the traveling wheel stabilizing device 7 and the drive wheel traveling stabilizing cylinder 15 to control the traveling direction of the transport vehicle 1. When traveling on a road surface, the track traveling guide 4 is stored and not used. That is, based on the information from the position detector 5, the position control device 6 calculates the difference between the position of the carrier 1 and the target position, and performs information processing for determining the traveling direction. Then, the traveling wheel stabilizing device 7 is operated to restrict the traveling direction of the traveling wheel 2. Similarly, the driving wheel driving stabilizing cylinder 15 is driven by the information processed signal from the position control device 6, and the direction of the driving wheel mounting frame 18 is adjusted around the driving wheel running stabilizing pin 16 as a rotation center. By
The traveling direction of the driving wheel 3 is restricted. As a result, centering of the transport vehicle 1 during flat traveling is reliably performed.

The transport vehicle 1 of the present invention is driven by directly rotating the drive wheels 3 by the motor 11. By adjusting the rotational speed of the motor 11, the rotational speed of the drive wheels 3 is adjusted and the transport vehicle 1 is transported. Adjust speed. In addition, by reversing the rotation of the motor 11, the carrier 1 can be moved backward. The traveling wheels 2 of the transport vehicle 1 of the present invention are provided with rubber 8 or lining 9 and can travel on a track and on a plane. The width of the running wheel 2 is the rail 14
The rubber 8 is used by being applied to the outer periphery of a rubber supporting wheel 19 installed on the traveling wheel 2, and the lining 9 is used by being applied directly to the outer periphery of the wheel. Further, when traveling on the transport vehicle 1 of the present invention, one side of the rail 14 is buried and used up to the floor surface 20 so that the operation is smooth.

[0009] Conventional carriages usually use metal wheels having a flange, and the traveling wheels are constrained by the flanges of the metal wheels. Therefore, only the track traveling is possible. Since the rubber 2 or the lining 9 is applied to the track 2, track running and road running are possible. Therefore, the carrier 1 according to the present invention operates the track guide 4 during track running, restricts the degrees of freedom of the traveling wheels 2 and the drive wheels 3 and performs centering of the carrier 1, and the road detector travels on the position detector 5. To restrict the degrees of freedom of the traveling wheel stabilizing device 7 and the driving wheels 3 based on the information,
The centering of the carrier 1 is performed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Conventional transportation work, in which a track traveling is performed by a track traveling carriage using a manned forklift, and a transportation operation using a carrier truck according to the present invention are performed by an unmanned track traveling and a road surface. In order to compare the transport operation with the traveling, the transport of the product and the raw material was carried out both by the conventional method and the method according to the present invention. The transfer cost and transfer efficiency were compared between the operation using the conventional transfer vehicle and the operation using the transfer vehicle according to the present invention. As a result, in both cases, there was no problem in terms of work safety in transporting products and raw materials, and there was no problem in quality of products or raw materials. In addition, the transport efficiency of the transport truck of the present invention can be more efficiently operated than the conventional transport truck because there is no need to reload the transport truck and the forklift, etc. The transfer operation time is reduced by about 30% compared to the transfer operation in which the traveling on the road is performed by a manned forklift or the like.

[0011]

According to the present invention, by using the transport cart, it is possible to freely transport both on the track and on the road, and there is no need for a driver as in the conventional transport operation in which the road is traveled by a manned forklift or the like. Becomes Further, since the transport efficiency is superior to that of the conventional transport cart, the transport cost is reduced by about 30%. Further, since the transport vehicle of the present invention employs a system in which the drive wheels are directly driven by a motor, the size of the transport vehicle can be made smaller than that of a conventional transport vehicle, and the transport capacity can be reduced. Can also be increased. Furthermore, since the carrier of the present invention can be manufactured by a relatively simple modification in which necessary devices such as a track guide and a position detector are attached to the conventional carrier, the manufacturing cost of the carrier can be reduced. Can be measured.

[Brief description of the drawings]

FIG. 1 is a side view of a carriage according to the present invention.

FIG. 2 is a plan view of a transport cart according to the present invention.

FIG. 3 is a front view of the carrier according to the present invention.

FIG. 4 is a track running cross-sectional view of a running wheel provided with rubber.

FIG. 5 is a track running cross-sectional view of lining running wheels.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor truck 2 Running wheel 3 Drive wheel 4 Track running guide 5 Position detector 6 Position control device 7 Running wheel stabilizer 8 Rubber 9 Lining 10 Running wheel mounting frame 11 Motor 12 Track running guide switching cylinder 13 Track running guide switching Pin 14 Rail 15 Cylinder for driving wheel running stabilization 16 Pin for driving wheel running stabilization 17 Track running guide mounting frame 18 Drive wheel mounting frame 19 Rubber supporting wheel 20 Floor surface

Claims (1)

[Claims] 1. Drive wheels 3, running wheels 2 provided with rubber 8 or lining 9, track running guide 4, position detector 5, position control device 6, and running wheel stabilizing device 7.
The traveling vehicle 1 having the following features: the traveling wheel stabilizing device 7 is released during traveling on the track, centered by the traveling guide 4, and the traveling guide is stored and centered by the position detector during traveling on the road. Transport trolley.