JP3753955B2 - Transport device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transfer device. More specifically, the present invention relates to a transport device that can move a heavy object such as a concrete product in a relatively free direction with a simple device.
[0002]
[Background Art and Problems to be Solved by the Invention]
Conventionally, for example, in the case of a crane transportation facility using a portal crane or the like, transportation of building materials such as a large concrete box culvert has been performed using a crane, a carriage, a truck, and the like.
[0003]
The cart incorporates wheels, a drive source, and the like into a vehicle body in which a steel material is firmly framed with a welded structure so as to withstand heavy objects. Moreover, a traveling rail is installed on the road in order to cause the carriage to travel on a predetermined route in advance.
[0004]
Since the body of the bogie is made by assembling steel, the bogie has a high rigidity and a high vehicle height, so that it is wide to ensure stability. In addition, since the carriage has high rigidity, the driving force of the carriage works mainly in the straight direction in the curve, it is difficult to work along the curve curve of the traveling rail, and there is a possibility of worst derailment when the conveyance speed is high, There is a problem that the turning direction is not suitable for traveling on a narrow road. In order to solve such a problem, if measures such as changing the height of the wheel heel and the height of the rail are taken, there is a problem that the production cost increases.
[0005]
Moreover, in order to run the carriage smoothly, the traveling rail must be installed on a paved road, and the installation location is restricted. In addition, there is a problem that the installation accuracy such as the height and interval of the traveling rail is ensured, the number of maintenance is increased, and the construction cost and the maintenance cost are increased.
[0006]
An object of this invention is to provide the conveying apparatus which is the compact structure which is not restrict | limited to an installation place in view of above-mentioned circumstances, and can reduce total equipment costs, such as construction cost.
[0007]
[Means for Solving the Problems]
The conveying device of the present invention includes a conveying wheel body arranged in four directions, a guide tool arranged in front of a pair of conveying wheel bodies to guide the conveying wheel body, and the pair of conveying wheel bodies in the front and the rear of the pair of conveying the wheel assembly and guiding device for connecting a flexible connecting member comprises a wire which is respectively connected to the guiding device and the rear of the pair of conveying wheel assembly, wherein the guiding device includes a frame body The connecting member is provided at both ends of the frame body, and a leading wheel body is provided at the center of the frame body .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a transport apparatus according to the present invention will be described with reference to the accompanying drawings.
[0009]
FIG. 1 is a plan view showing an embodiment of the transfer apparatus of the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is a cross-sectional view taken along line BB in FIG. CC sectional view, FIG. 5 is a front view of the transport wheel body in FIG. 1, FIG. 6 is a plan view of the transport wheel body in FIG. 1, and FIG. 7 is a schematic diagram showing the transport device running on the curve, FIG. 8 is a diagram showing a chain state at the positions of arrows a and b in the transport apparatus of FIG.
[0010]
As shown in FIGS. 1 to 7, a transport apparatus according to an embodiment of the present invention includes a transport wheel body 1 disposed in four directions, a guide tool 2 disposed in front of the transport wheel body 1, It is comprised from the chain | strand 3 which is a connection body which connects the said wheel 1 for conveyance, and the guide tool 2, the main wire 4 connected to the said guide tool 2, and the return wire 5 connected to the said wheel body 1 for conveyance. Yes.
[0011]
The conveying wheel body 1 is formed with screw holes 7 at the upper part of the wheel body 6 so as to fix a transported object with bolts, and four roller-shaped rollers 8 attached to the lower part of the wheel body 6; , Two pairs of guide rotators 9 attached in the horizontal direction on both sides of the wheel body 6, and a connecting portion 10 connected to the chain 3 and the main wire 4. In the present embodiment, since the transport wheel body 1 can be transported using a small diameter roller 8 while supporting a transported object (heavy object) low, it can be transported to a narrow place. Moreover, since the conveyed product is supported low, the conveyed item can be safely lowered without using a crane. The guide rotator 9 is rotatably supported by bolts 12 and nuts 13 between the side plates 11 and employs normally used ball bearings. However, the guide rotator 9 is not limited to this and may be a roller, for example. it can. Further, the number of rollers and guide rotators is not limited to that of the present embodiment.
[0012]
The connecting portion 10 is composed of a pair of support plates 14 and a connecting pin 16 that is inserted through a through hole of the support plate 14 and then prevented from being detached by a stopper 15. The hook is not limited to the above, and may be a hook with a slip prevention, for example. The external dimensions of the transport wheel body 1, the dimensions of the chain 3 and the wires 4, 5, the distance between the left and right transport wheel bodies 1, and the distance between the front and rear transport wheel bodies 1 depend on the size of the transported object. It can be selected as appropriate.
[0013]
The guide tool 2 is connected to a pair of front transporting wheel bodies 1 and has a function of guiding the transporting wheel 1 when the main wire 4 is pulled, and is a frame body framed by a steel material. 17, connecting portions 18 provided at both ends of the frame body 17, and leading wheel bodies 19 provided at the center of the frame body 17. Since this frame body 17 is a kind of truss structure body, it can be manufactured with light weight and high strength. The connecting portion 18 is provided with a connecting shaft for connecting the chain 3 at the rear end portion and one roller at the lower portion, and as the leading wheel body 19, parts are shared to reduce manufacturing costs. Therefore, as in the case of the guiding rotator 9, a roller comprising a pair of guiding rotators 9, a ball bearing with a contact seal and a connecting portion 10 can be used.
[0014]
In the present embodiment, the chain 3 is used as a connecting body for connecting the transporting wheel body 1 and the guide tool 2. However, in the present invention, the chain 3 is not limited to this. As long as it is a flexible connecting body having flexibility, a wire rope, a chain, etc. or one of them covered with a dustproof and rustproofing tube can be used.
[0015]
When the transport device of the present embodiment is used, first, three traveling grooves 22 are formed on the road surface 21 at positions corresponding to the left and right transport wheel bodies 1 and the leading wheel body 19. The travel groove 22 is formed along the conveyance route, and a travel guide plate 23 having a U-shaped cross section is attached to the travel groove 22. The depth of the traveling groove 22 on which the traveling guide plate 23 is mounted is formed to be lower than the height of the wheel body 6, and the groove width is formed to be slightly larger than the width of the left and right guiding rotating bodies 9.
[0016]
The transported object 24 placed on the transport wheel body 1 is fixed by screwing bolts into the screw holes 7, and then transported by pulling the main wire 4 along the travel groove 22 with a winch or the like. The object 24 is transported to a predetermined transport position. Next, the pulling of the main wire 4 is released, and the transported material on the transport device is lowered. Next, the transporting device after transporting pulls the return wire 5 with a pulling device (not shown) and returns it to the original position. When the predetermined transported object 24 has been transported, the transported object 24 is fixed together with the travel groove 22 using a mortar or the like.
[0017]
In the present embodiment, as shown in FIG. 7, the chain 3 at the position of the arrow a of the bent portion R pulled in the direction of the arrow F is shown in FIG. As shown in FIG. 8 (a), the components 3a of the chain 3 are separated, and the tension is zero. Further, as shown in FIG. 8B, the chain 3 at the position of the arrow b is in a state where a tension corresponding to the traction force is applied to each component 3b of the chain 3. Conversely, when turning leftward, the tension applied to the chain 3 at the positions of the arrows a and b acts in reverse. In this way, since the respective components of the left and right chains 3 are connected in an unconstrained state, the tension of the left and right chains is changed instantaneously and can be smoothly turned to carry a transported object. Moreover, since a conveyed product is conveyed in a low position, it can be conveyed in a narrow place. Therefore, it is possible to obtain a transport device with a small turn. Moreover, since the transported material is transported at a low position, it can be transported stably with a good balance between left and right.
[0018]
In addition, after transporting, after unloading the transported material, when returning the transporting device to the original position, there is no transported material, so the weight will be lighter and it will be easier to lift at the curve. The change in tension is instantaneous and does not cause derailment from the running groove.
[0019]
In addition, the traveling groove can be formed even if it is not a paved road, and the traveling groove can be constructed roughly compared to the conventional rail, so that the total equipment cost such as construction cost can be reduced.
[0020]
【The invention's effect】
As described above, according to the present invention, it is a compact structure that is not restricted by the installation location, and the total equipment cost such as construction cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a transport apparatus according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a cross-sectional view taken along line BB in FIG.
4 is a cross-sectional view taken along the line CC of FIG.
5 is a front view of the transport wheel body in FIG. 1. FIG.
6 is a plan view of the transport wheel body in FIG. 1. FIG.
FIG. 7 is a schematic diagram illustrating a transport device that is traveling along a curve.
8 is a diagram showing the state of the chain at the positions of arrows a and b in the transport apparatus of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Transfer wheel body 2 Guide tool 3 Chain 4 Main wire 5 Return wire 6 Wheel main body 7 Screw hole 8 Roller 9 Guide rotating body 10 Connection part 11 Side plate 12 Bolt 13 Nut 14 Support plate 15 Stopper 1
16 connecting pin 17 frame body 18 connecting portion 19 leading wheel body 21 road surface 22 traveling groove 23 traveling guide plate 24

Claims (3)

A transport wheel body disposed in all directions, a guide device disposed in front of the pair of transport wheel bodies and guiding the transport wheel body, the pair of front transport wheel bodies and the pair of rear transport A flexible connecting body for connecting the wheel body and the guide tool, and a wire connected to the guide tool and a pair of rear transport wheel bodies ,
The conveying device includes a guide body including a frame body, connecting portions provided at both ends of the frame body, and a leading wheel body provided at a central portion of the frame body .   The transport apparatus according to claim 1, wherein the coupling body is a chain. The conveying apparatus according to claim 1 or 2, wherein the conveying wheel body includes a roller attached to a lower portion, a guide rotating body attached to both sides in a horizontal direction, and a connecting portion connected to the connecting body and a wire.

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