JPH11335093A - Heavy object carrying dolly - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and labor-savingly perform the transfer work of a heavy object onto a frame, by fitting a pair of installing metal fittings to the end surface of a loading mount around a vertical shaft in a turning direction, to use the installing metal fittings so as to transfer a heavy object from the loading mount to the frame while sliding the heavy object on this pair of expanded installing metal fittings. SOLUTION: In a heavy object carrying dolly 100 having main components of a dolly part 10, a lift part 20, and a fork part 30, the lift part 20 is equipped with a hydraulic jack 22, for moving an elevating plate 21 fitted slide-movably in vertical, direction on a base 11. A placing mount 32, suspendedly provided on the elevating plate 21 by a pair of suspending frames 31 fitted to both the side parts of the elevating plate 21, is provided in the fork part 30, and many free wheels 33 are arranged on the main surface of the placing mount 32 to be adopted as a sliding surface. A pair of installing metal fittings 34 are provided turnably around vertical shafts 36, on the fore and rear of one side surface of the placing mount 32, and a heavy object can be transferred from the placing mount 32 onto an outside mount, in the expanded condition of this pair of installing metal fittings 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy goods transporting trolley used when a heavy object such as a control panel, which has been transported to a site such as a plant construction site, is transported to an installation position and transferred to a gantry. It is.

[0002]

2. Description of the Related Art FIGS. 6 to 8 are perspective views for explaining a conventional method of transporting a control panel. The control panel 1 as a heavy object is assembled at a factory and transported to the site by truck. At the site, a hook (not shown) is attached to the control panel 1 loaded on a truck, and a wire (not shown) hooked on the hook is hung on a hook of a crane (not shown) to be lifted and controlled. The board 1 is transshipped from a truck to a trolley 2 with casters 3. The control panel 1
It is standing upright on the trolley 2. Next, as shown in FIG. 6, the worker M transports the control panel 1 to a position near the installation location while pushing the cart 2. Therefore, the worker M
As shown in FIG. 7, after moving the carriage 2 so that the direction of the control panel 1 matches the installation direction, the control panel 1 is shifted from the carriage 2 to the direction of the gantry 4 so that the gantry 4 and the control panel 1 And transfer it onto the gantry 4 while biting the roller 5 in between. Then, the control panel 1 is aligned with the installation position on the gantry 4 using the rollers 5. Thereafter, as shown in FIG. 8, the control panel 1 is lifted with the burl 6 placed on the
Then, the control panel 1 is tilted so that the bottom corner of the control panel 1 is brought into contact with the gantry 4, the remaining rollers 5 are removed, and the control panel 1 is placed on the gantry 4. After that, control panel 1
Is positioned at the installation position, the control panel 1 is fixed to the gantry 4, and the installation of the control panel 1 is completed.

[0003]

As described above, according to the conventional method of transporting a control panel, the control panel 1 transported to the site is placed upright on the trolley 2 having no overturn prevention function, and the trolley 2 is manually driven. Since the control panel 1 was conveyed to the installation location while pressing it, the control panel 1 had to be conveyed while paying attention so that the control panel 1 did not fall down, and there was a problem that workability was significantly reduced. Also, since the carriage 2 does not have a function of changing the direction of the control panel 1, after moving the control panel 1 to the installation location, the carriage 2 is moved along with the carriage 2 so that the direction of the control panel 1 matches the installation direction. Therefore, there is a problem that workability is significantly reduced in a narrow electric room. Furthermore, when transferring the control panel 1 from the trolley 2 to the gantry 4, there is a problem that the rollers 5 must be used, which increases the working time and requires a large number of workers.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and a pair of mounting brackets are mounted on an end surface of a mounting table so as to be rotatable around a vertical axis, and a heavy object is spread. It is possible to transfer a heavy object from the mounting table to the gantry while sliding on the pedestal, so that it is possible to obtain a heavy object transport vehicle that can reduce the time required for the operation of transferring heavy objects onto the gantry and reduce man-hours for the transfer operation. It is a further object of the present invention to provide a heavy goods transport trolley in which a safety fence can be erected on the mounting table to prevent the heavy goods from falling over by the safety fence and to easily carry the heavy goods to the installation location. Furthermore,
It is an object of the present invention to provide a heavy goods transport vehicle in which a main surface of a mounting table is configured as a sliding surface and a position and a direction of a heavy object on the mounting table can be easily adjusted.

[0005]

According to the present invention, there is provided a heavy goods transport vehicle having a pair of legs extending forward from both lower ends of a front surface of a base, and wheels mounted on the front ends of the pair of legs and the base. A bogie unit, a lift plate which is slidably mounted on the base so as to be slidable up and down, and a lift unit in which a lift plate raising / lowering means is attached to the base, and a mounting table suspended from the lift plate and in front of the base. And a fork portion arranged substantially horizontally to
The mounting bracket is attached to at least one of the left and right and front end surfaces of the mounting table, and is rotatably attached around a pair of vertical axes provided at a predetermined distance horizontally,
The mounting bracket is formed in an outer shape in which the height in the vertical direction gradually decreases from the root side to the tip side.

[0006] Further, the safety fence is erected on the mounting table so as to be detachable, and the main surface of the mounting table is configured as a sliding surface.

[0007] Further, a large number of free wheels are arranged on the main surface of the mounting table to constitute the sliding surface.

Further, the safety fence standing position of the mounting table can be changed.

Further, the mounting bracket is detachably attached to the mounting table.

[0010] The present invention further comprises the wheel lock mechanism.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a perspective view showing a heavy object transporting truck according to Embodiment 1 of the present invention. The heavy object transporting cart 100 includes a cart unit 10, a lift unit 20, and a fork unit 3
It is composed of three elements of 0.

The bogie unit 10 includes a base 11, a pair of legs 12 extending forward and backward from both lower ends of the front surface of the base 11, wheels 13 attached to front ends of the base 11 and the pair of legs 12, respectively. 14 and a handle 15 attached to the base 11. The wheel 13 is provided with a lock mechanism (not shown) for locking the wheel 13.

The lift section 20 comprises an elevating plate 21 slidably mounted on the base 11 so as to be vertically slidable, and a hydraulic jack 22 as an elevating plate elevating means for sliding the elevating plate 21. When the hydraulic lever 22 is pressed by operating the lift lever 23, the elevating plate 21 is raised, and when the hydraulic pressure is released by operating the lowering lever 24, the elevating plate 21 is lowered.

The fork 30 is supported by a pair of suspension frames 31 attached to both sides of the lift plate 21.
1 and a plurality of mounting tables 32 disposed substantially in front of the base 11 in a substantially horizontal state, and a plurality of free wheels disposed on the main surface of the mounting table 32 to constitute the main surface of the mounting table 32 as a sliding surface. 33,
The mounting table 32 includes a pair of mounting brackets 34 that are rotatably mounted around a vertical axis 36 on one side of the mounting table 32 and a safety fence 35 that is detachably mounted on the mounting table 32. Here, the mounting bracket 34 is formed in a shape in which the height in the vertical direction gradually decreases from the root side to the tip side,
The thing put on this slides out. The free wheel 33 is configured such that a spherical bearing is rotatably embedded in the mounting table 32 with a part thereof protruding from the main surface of the mounting table 32.

[0015] The heavy object transport vehicle 10 constructed as described above.
A method of transporting the control panel 1 using the reference numeral 0 will be described with reference to FIGS. When the control panel 1 assembled in the factory is transported to the site by truck, a hook (not shown) is attached to the control panel 1 loaded on the truck, and a wire (not shown) hooked on the hook. A crane (not shown)
Hang it on the hook. Then, the control panel 1 is reloaded from the truck onto the mounting table 32 of the heavy goods transport vehicle 100 in which the wheels 13 are locked by the brake mechanism. Therefore, as shown in FIG. 2, the control panel 1 stands upright on the mounting table 32 at the lowered position. Next, the safety fence 35 is attached to the mounting table 32, and the control panel 1 is pushed to push the control panel 1 against the safety fence 25. At this time, the control panel 1
3, it can be easily moved on the mounting table 32. Therefore, as shown in FIG. 3, the control panel 1 is fixed to the safety fence 35 by the fixing belt 37. Then, the wheel 13 is unlocked by the brake mechanism, and the steering wheel 15 is released.
While pushing the heavy object transporting trolley 100,
To the vicinity of the installation location.

Then, the heavy article transporting trolley 100 is moved near the gantry 4 so that the control panel 1 roughly matches the installation position, and the wheels 13 are locked by the brake mechanism. Then, as shown in FIG. 4, the mounting lever 32 is operated to raise the mounting table 32 until the height of the mounting bracket 34 is slightly higher than the gantry 4. Thereafter, the mounting bracket 34 is rotated about the vertical axis 36, and the mounting bracket 34 is spread on the gantry 4 as shown by a dotted line in FIG. Furthermore, the fixing of the control panel 1 by the fixing belt 37 is released, and the control panel 1 is moved back and forth, right and left on the mounting table 32, and rotated to adjust the direction and position of the control panel 1 to the installation direction and position. Next, the control panel 1 is moved on the mounting table 32 in the direction of the gantry 4. Therefore, the control panel 1 is mounted on the pair of mounting brackets 34 and moves onto the gantry 4 while sliding on the pair of mounting brackets 34. Then, the control panel 1 is tilted so that the corner at the bottom of the control panel 1 is brought into contact with the gantry 4, and the mounting bracket 34 is rotated about a vertical axis 36 to return to the side position of the mounting table 32, and 1 is returned to the upright state and placed on the gantry 4.
Thereafter, the control panel 1 is positioned at the installation position, the control panel 1 is fixed to the gantry 4, and the installation of the control panel 1 is completed. In addition, the heavy object transporting vehicle 100 operates the lowering lever 24 to return the mounting table 32 to the lowering position, unlocks the wheels 13 by the brake mechanism, and is used for the next transporting of the control panel 1.

As described above, according to the first embodiment,
Since the safety fence 35 is detachably mounted on the mounting table 32, the safety fence 35 prevents the control panel 1 from falling during transportation, reduces the transportation load on the operator, and improves the transportation workability. Further, since the control panel 1 is fixed to the safety fence 35 by the fixing belt 37, it is possible to reliably prevent the control panel 1 from falling during transportation. Further, since the mounting table 32 is provided with the free wheels 33, the direction and the position of the control panel 1 on the mounting table 32 can be easily adjusted. Therefore, control panel 1
After moving the control panel 1 to the installation location, the control panel 1 is moved back and forth and left and right on the mounting table 32 and rotated, so that the position and orientation of the control panel 1 can be adjusted to the installation position and orientation. Workability can be improved. Also,
Since the mounting bracket 34 is provided, the control panel 1 can be moved onto the gantry 4 while sliding on the mounting bracket 34.
In this case, the time required for the transfer to the gantry 4 can be shortened, and the number of man-made operations can be reduced.

Here, in the first embodiment, the mounting table 3
2 The safety fence standing position is fixed, and the control panel 1 is moved to the safety fence 35.
Therefore, if the size of the control panel 1 changes, the position of the center of gravity of the control panel 1 greatly deviates from the position of the center of gravity of the heavy load transporting vehicle 100, and the stability during transport decreases. In order to avoid this, even if the size of the control panel 1 changes, the position of the center of gravity of the control panel 1 is made to substantially coincide with the position of the center of gravity of the heavy load transporting vehicle 100, and a stopper is provided in the gap between the safety fence 35 and the control panel 1. May be interposed. However, a disadvantage arises in that various types of stoppers having different thicknesses must be prepared. Therefore, the safety fence standing position of the mounting table 32 may be changeable according to the size of the control panel 1. In this case, even if the size of the control panel 1 changes, the position of the center of gravity of the control panel 1 is changed by changing the standing position of the safety fence 35 so that the position of the center of gravity of the control panel 1 substantially coincides with the position of the center of gravity of the heavy load transporting vehicle 100. 1 can be located on the mounting table 32,
That is, the control panel 1 can be located at a position where it is difficult to fall, and the control panel 1 can be transported in a more stable state.

Embodiment 2 FIG. 5 is a perspective view showing a main part of a heavy object transporting truck according to Embodiment 2 of the present invention.
In the figure, an L-shaped bracket 40 is fixed to one side surface of the mounting table 32, and a movable pin 42 is provided at the center of the bracket 40 so as to be able to expand and contract. Further, a flat mounting bracket 41 is fitted to a movable pin 42 extending from the bracket 40 and attached to the bracket 40. Further, a mounting bracket 34 is rotatably mounted on vertical shafts 36 erected at both ends of the main surface of the mounting bracket 41. The other configuration is the same as that of the first embodiment.

In the second embodiment, the mounting bracket 4
1 is mounted on one side of the mounting table 32 via the bracket 40, and the mounting bracket 34 is rotatably mounted on the vertical shafts 36 erected at both ends of the main surface of the mounting bracket 41. As in the first embodiment, the control panel 1 can be moved onto the gantry 4 while sliding on the mounting bracket 34, so that the operation time for transferring the control panel 1 to the gantry 4 can be shortened and the number of man-hours for the operation can be reduced. Is achieved. Further, since the mounting bracket 41 is fitted to the movable pin 42 provided on the bracket 40 so as to be extendable and retractable and is mounted on the bracket 40, the movable bracket 42 is pushed down to move the mounting bracket 41 from the bracket 40. Can be separated. Then, the pair of mounting brackets 34 is spread on the gantry 4 from the heavy goods transporting trolley 100 moved near the gantry 4, and the control panel 1 is moved from the mounting table 32 onto the pair of mounting brackets 34. The holder 41 can be separated from the bracket 40 so that the heavy goods transport vehicle 100 can be separated from the gantry 4. As a result, the work space for installing the control panel 1 on the gantry 4 is widened, and the heavy goods transport vehicle 100 does not hinder the operator, thereby improving workability.

In each of the above embodiments, the mounting bracket 3
4 is mounted on one side of the mounting table 32,
The mounting brackets 34 may be provided on the left and right end faces of the mounting table 32 and also on the front end face. In this case, the mounting table 3
The number of transfer directions from 2 to the gantry 4 is increased, and workability is improved accordingly. Further, in each of the above embodiments, the hydraulic jack 22 is used as the elevating plate elevating means. However, the elevating plate elevating means is not limited to the hydraulic jack 22 and may be any type capable of elevating the elevating plate 21. Can be used. Further, in each of the above-described embodiments, a large number of free wheels 33 are arranged on the main surface of the mounting table 32 to configure the main surface of the mounting table 32 as a sliding surface. The means for forming the sliding surface is not limited to disposing a large number of free wheels 33 on the main surface of the mounting table 32, and a Teflon plate may be attached to the main surface of the mounting table 32. May be constituted by an iron plate coated with Teflon.

[0022]

Since the present invention is configured as described above, it has the following effects.

According to the present invention, a pair of legs extend forward from both lower ends of the front surface of the base, and a bogie portion in which wheels are mounted on the front ends of the pair of legs and the base, and the lifting plate is attached to the base. A lift portion slidably mounted up and down and having a lifting plate lifting means attached to the base, and a fork having a mounting table suspended from the lifting plate and disposed substantially horizontally in front of the base. Parts, the mounting brackets are respectively rotated around a pair of vertical axes provided at a predetermined distance horizontally in at least one of the left, right, and front end faces of the mounting table. The mounting bracket is formed to have an outer shape in which the height in the vertical direction gradually decreases from the root side to the tip side, so that the mounting bracket is rotated around the vertical axis to expand and remove a heavy object. Unfolded Can be transferring from the mounting table while sliding on the attached bracket on pedestal, it is possible to shorten the sorting work time on stand of heavy, heavy transport vehicle which can reduce the sorting work artificial obtain.

Further, the safety fence is erected on the mounting table so as to be detachable, and the main surface of the mounting table is formed as a sliding surface. In addition to being easily transported to the installation location, the position and orientation of the heavy object on the mounting table can be easily adjusted.

Further, since a large number of free wheels are arranged on the main surface of the mounting table to constitute the sliding surface, the position and the direction of the heavy object on the mounting table can be adjusted more easily.

Further, since the safety fence standing position of the mounting table can be changed, the standing position of the safety fence is changed according to the size of the heavy object, and the position of the center of gravity of the heavy object is changed. The center of gravity of the heavy object transport vehicle can be made to substantially coincide with the center of gravity, and the heavy object can be transported in a stable state.

Further, since the mounting bracket is detachably attached to the mounting table, the mounting bracket is separated from the mounting table in a state where the heavy object is transferred onto the mounting bracket spread on the gantry. The carriage unit can be separated from the gantry, and workability can be improved.

Further, since the above-mentioned wheel locking mechanism is provided, the heavy goods transporting cart can be fixed at the time of loading / unloading of heavy goods, and the workability of loading / unloading can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a heavy object transporting cart according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing a heavy goods loading state of the heavy goods transport trolley according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing a heavy object transport state of the heavy object transport vehicle according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view showing a method of installing a heavy object using the heavy object transporting cart according to the first embodiment of the present invention.

FIG. 5 is a perspective view showing a main part of a heavy object transporting cart according to Embodiment 2 of the present invention.

FIG. 6 is a perspective view showing a conventional control panel transfer method.

FIG. 7 is a perspective view showing a conventional control panel installation method.

FIG. 8 is a perspective view showing a conventional control panel installation method.

[Explanation of symbols]

1 control panel (heavy load), 10 bogie section, 11 base,
12 legs, 13, 14 wheels, 20 lift section, 21 lifting plate, 22 hydraulic jack (lifting plate lifting means), 30
Fork part, 32 mounting table, 33 free wheel, 34 mounting bracket, 35 safety fence, 36 vertical axis, 100 heavy goods transportation truck.

Claims (6)

[Claims] 1. A pair of legs extend forward from both lower ends of a front surface of a base, and a bogie portion having wheels mounted on the front ends of the pair of legs and the base, and a lifting plate sliding up and down on the base. A lifting unit, which is mounted so as to be capable of being mounted on the base, and a fork unit having a mounting table suspended from the lifting plate and disposed substantially horizontally in front of the base. In the heavy load transporting vehicle, the mounting bracket is attached to at least one of the left, right, and front end surfaces of the mounting table so as to be rotatable around a pair of vertical axes provided at a predetermined distance in the horizontal direction. ,
The heavy object transporting trolley, wherein the mounting bracket is formed in an outer shape in which a height in a vertical direction gradually decreases from a root side to a tip side. 2. The heavy object transporting vehicle according to claim 1, wherein the safety fence is erected on the mounting table so as to be detachable, and a main surface of the mounting table is configured as a sliding surface. 3. The heavy object transporting vehicle according to claim 2, wherein a number of free wheels are disposed on the main surface of the mounting table to constitute the sliding surface. 4. The heavy object transporting vehicle according to claim 2, wherein the safety fence standing position of the mounting table is configured to be changeable. 5. The heavy object transporting vehicle according to claim 1, wherein the mounting bracket is detachably attached to the mounting table. 6. The heavy object transporting vehicle according to claim 1, further comprising the wheel locking mechanism.