JP2000327276A - Erecting device for heavy article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an erecting device for a heavy article capable of securing setting stability of a device itself by reducing movement of a center of gravity at the time of erecting an apparatus and optionally adjusting rotating speed at the time of erection or carrying height of the apparatus without using external motive power. SOLUTION: This device has at least a pair of side rails 22 set with an interval of more than width dimensions of an electric board 12 to be an erecting object, jacks 16 for elevation respectively installed on upper surfaces of a pair of the side rails 22, a rotating support shaft 18 to bridge a ceiling board 34 in these jacks 16 for elevation and furnished with a rotating mechanism part and a mounting plate 20 positioned between the side rails 22, installed on the rotating support shaft 18 and free to fix the electric board 12. Consequently, it is possible to reduce movement of a center of gravity at the time of erecting the electric board 12 and to secure setting stability of the device itself.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for elevating a heavy object which is used for installation work of an electric board and the like, and particularly suitable for erecting the electric board and the like from a side-down state.

[0002]

2. Description of the Related Art Conventionally, a large amount of electric power is used in factories and the like, and an electric board is used to manage such a large amount of electric power and supply it to a building. FIG. 5 is an explanatory view showing a conventional method for installing an electric board in a building. As shown in FIGS. 1A and 1B, the cart 5
Mounting plate 6 capable of holding electric board 1 via a hinge at the edge of
And the hydraulic cylinder 7 connected to the mounting plate 6
A method is known in which the inclination of the mounting plate 6 is changed by the expansion and contraction of the electric board 1 (see the arrow in the figure) to change the electric board 1 from a sideways state at the time of carrying in to an upright state at the time of installation.

[0003]

However, the above-described method for erecting an electric board has the following problems. In other words, in the method of tilting the mounting plate by expansion and contraction of the hydraulic cylinder and erecting the electric panel, the hydraulic cylinder needs to be enlarged in order to erect forward with one end of the electric panel as a base point, and to drive the hydraulic cylinder. There is a problem that the external power is indispensable. Further, with the change in the attitude of the electric board, the center of gravity of the electric board moves toward the end of the bogie, so that the bogie may be lifted.

By the way, as shown in FIG. 5 (3), a device for rotating the electric board 1 by human power without using power is also conceivable. It was difficult to reduce the height of the board to be transported or to adjust the standing speed of the electrical board, and it was difficult to improve the stability during transport.

The present invention focuses on the above-mentioned conventional problems, and can reduce the movement of the center of gravity of the transported object at the time of standing, secure the installation stability of the apparatus itself, and at the time of standing without using external power. It is an object of the present invention to provide an apparatus for erecting a heavy object capable of arbitrarily adjusting a rotation speed or a conveying height of an object to be conveyed.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided an apparatus for erecting a heavy object, comprising a mounting plate for loading the heavy object, the mounting plate being capable of standing and turning at the center of gravity of the heavy object or at a position near the center of gravity. A rotary support shaft is provided, and an elevating means for elevating and lowering the mounting plate on which the heavy object is loaded is provided.

It is preferable that a worm wheel is attached to the rotation support shaft, and a worm that engages with the worm wheel is provided in the elevating means, and the rotation of the worm wheel enables the rotation support shaft to rotate. Further, it is preferable that a mounting position of the mounting plate with respect to the rotation support shaft is variable along a height direction of the device.

[0008]

According to the present invention constructed as described above, since the lifting and lowering and rotation of the equipment are performed in the area of the bogie unit, even if the center of gravity of the equipment changes due to the change in the attitude of the equipment, the apparatus main body can be moved. The posture is not disturbed. For this reason, it is possible to reliably perform operations related to lifting and lowering and rotation of the device. Also, during transportation, the height of the lifting / lowering means is set to be low so that the height of the equipment is suppressed, and the low center of gravity enables stable transportation of the equipment.

The worm wheel is attached to the rotating support shaft, and the worm that engages with the worm wheel is provided in the lifting / lowering means. Therefore, a large reduction ratio can be obtained, and even when the equipment is heavy, the worm wheel rotates. Can be easily performed manually. Also, if a device having a large reduction ratio (for example, a jack or the like) is used as the elevating means for elevating and lowering the device, it goes without saying that the device can be manually operated in the same manner as the worm gear. By using a worm gear or jack having a large reduction ratio, fine adjustment (forward rotation or reverse rotation) of the lifting height and rotation angle of the device can be performed by human power.

Further, if the mounting position of the mounting plate with respect to the rotary support shaft is made variable along the height direction of the device, the center of gravity of the device and the center of rotation can be brought closer (adjusted), and the rotation of the device can be adjusted. In this case, the center of gravity fluctuation can be suppressed, and the posture of the apparatus main body can be stabilized.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the apparatus for erecting a heavy object according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view showing the structure of a heavy-weight rising device according to the present embodiment, and FIG. 2 is an enlarged view of a main part of a rotation mechanism. As shown in these figures, the upright device 10 according to the present embodiment includes a carriage unit 14 for transporting an electric board 12 serving as a device to be raised, and a lifting and lowering of the electric board 12 attached to the carriage unit 14. A lifting jack 16 serving as a pair of lifting means, a rotating support shaft 18 rotatably provided to bridge the pair of lifting jacks 16, and an electric board mounted on the rotating support shaft 18. 12 and a mounting plate 20 for rotating (posture change).

A carriage 14 for carrying the electric board 12
Has a pair of side rails 22 whose interval is set to be wider than the width of the electric board 12, and connects one end of each of the pair of side rails 22 to a connecting rail 24.
The connection is made to form a U-shaped frame. The bogie unit 1 is located above the connecting rail 24.
A handle 26 for performing the movement of the side rails 4 is attached, and a moving wheel 28 and a telescoping fixed leg 30 screwed to the side rails 22 are provided on the lower surface at both ends in the longitudinal direction of the side rails 22. Have been. For this reason, the electric board 1 is mounted on the carriage unit 14 and moved to a predetermined place, and after the movement, the fixed legs 30 are extended to fix the carriage unit 14 so that the electric board 12 can be rotated (posture change). I have to. By the way, the length of the side rail 22 is set to be at least longer than the maximum length of the electric board 12, and is within a region connecting the wheel 28 and the fixed leg 30 attached to the end of the side rail 22. Then, the electric board 12 can be accommodated. Therefore, the electric board 12
Is located in a region connecting the wheels 28 and the fixed legs 30 attached to the end of the side rail 22 to stabilize the posture of the bogie unit 14 during movement and rotation.

On the opposite side of the side rail 22 to which the wheel 28 and the fixed leg 30 are attached, that is, on the upper surface of the side rail 22, a lifting jack 16 for raising and lowering the electric board 12 is provided. The lifting jack 16 includes a pair of lifting arms 32 having joints that can be bent in a U-shape, a ceiling plate 34 serving as a tip of the lifting arm 32 connecting the pair of arm tips, and a pair of arms. And a lead screw 35 screwed to the joint of the lifting arm 32. By rotating the lead screw 35, the distance between the joints of the pair of elevating arms 32 is reduced, and the ceiling plate 34
Can be raised and lowered.

A ceiling plate 34 constituting the lifting jack 16
So that the electric board 12 is
A rotation support shaft 18 for making the rotation is mounted.
Although not shown in FIG. 1, a rotation mechanism 36 is provided between one of the ceiling plates 34 and the rotation support shaft 18 corresponding to the ceiling plate 34, as shown in FIG.
By operating the rotation mechanism 36, the rotation support shaft 18 can be rotated. The other ceiling plate 34 on which the rotation mechanism 36 is not provided is provided with only the support guide 19 for holding the rotation of the rotation support shaft 18.

The rotation mechanism 36 comprises a worm gear.
More specifically, a worm 38 is rotatably arranged on the ceiling plate 34, and a worm wheel 40 capable of meshing with the worm 38 is provided at an end of the rotation support shaft 18. As described above, since the worm gear is used as the rotation mechanism, the reduction ratio of the worm wheel 40 to the worm 38 can be increased. Therefore, even if the electric board 12 is heavy, the electric board 1 can be easily operated manually.
2 (rotation support shaft 18) can be rotated, and the rotational position can be finely adjusted.

By the way, the lifting jack 16 also converts the propulsive force of the screw caused by the rotation of the lead screw 35 into a lifting movement, so that it is possible to increase the reduction ratio, and it is easy to raise and lower the electric board 12 manually. It goes without saying that you can do it. The electric board 1 is mounted on the rotation support shaft 18 rotatably held with respect to the ceiling plate 34 in this manner.
2 is provided with a mounting plate 20.

FIG. 3 is a structural explanatory view showing a mounting structure of the mounting plate 20 and the rotation support shaft 18. As shown in FIG. As shown in the figure,
The mounting plate 20 has an L-shaped cross section in which the edge of a rectangular flat plate is bent and raised at 90 degrees, and the flat surface 42 and the curved surface 44 of the mounting plate 20 support the outer surface of the electric board 12. Thus, the electric board 12 is brought into close contact with the mounting plate 20. The curved surface 44 is provided with a through hole 46, and a fastening bolt 48 is inserted into the through hole 46 and screwed to the outer surface of the electric board 12, so that the electric board 12 can be fixed to the mounting plate 20. ing.

The rotation support shaft 18 is mounted on the back surface of the mounting plate 20, that is, on the rear side of the plane, and the connection is made by a U-shaped stopper having an inner diameter corresponding to the outer diameter of the rotation support shaft 18. 50. That is, the U-shaped stopper 50 is put on the rotation support shaft 18, and the tightening bolt 54 is inserted into the mounting hole 52 provided in the U-shaped stopper 50, and screwed into the screw hole 56 provided in the mounting plate 20. By doing so, the U-shaped stopper 50 is fixed to the rotation support shaft 18,
The rotation support shaft 18 and the mounting plate 20 are joined. As shown in FIG. 1A, the mounting plate 20 is provided with a plurality of screw holes 56 along the longitudinal direction, so that the relative position of the U-shaped stopper 50 with respect to the mounting plate 20 can be changed. ing. This makes it possible to change the relative position between the mounting plate 20 and the rotary support shaft 18. For example, even when the different types of electrical boards 12 are erected, the center of gravity of the electrical board 12 is brought closer to the rotation center of the rotary support shaft 18. Becomes possible,
Fluctuation of the center of gravity during rotation can be minimized. In the electric board 12, since the transformer 58 for performing voltage conversion is a heavy object, the mounting position of the rotary support shaft 18 with respect to the mounting plate 20 is determined so that the transformer 58 and the rotary support shaft 18 are closest to each other. What should I do?

A procedure for transporting the electric board 12 and erecting the electric board 12 by using the erecting carriage 10 thus configured will be described. FIG. 4 is a front view and an upper side view for explaining the operation state of the upright device. As shown in the figure, when the electric board 12 is mounted on the erecting device 10, the lifting jack 16 is lowered with the mounting plate 20 lying down. Then, the electric board 12 is set on the mounting plate 20 so as to follow the mounting plate 20 in a laid state. Here, a tightening bolt 48 is inserted into a through hole 46 provided in the curved surface 44 of the mounting plate 20, and the tightening bolt 48 is screwed into the electric board 12. Is joined.

After the electric board 12 is attached to the erecting device 10 as described above, the fixed legs 30 are pulled in, the carriage 14 is supported only by the wheels 28, and the handle 26 is pushed to move the erecting device 10 to the electric board. Move to the place where 12 is to be installed.
During this movement, the lifting jack 16 is lowered as much as possible to lower the center of gravity of the upright device 10 including the electric board 12 so that stable running can be performed.

After the erecting device 10 is moved to a predetermined position (position where the electric board is installed), the fixed leg 30 is extended so that the carriage 14 is supported only by the fixed leg 30. If the bogie unit 14 is supported only by the fixed legs 30 in this manner, even if an external force is applied to the erecting device 10 due to a change in the position of the center of gravity due to the rotation of the electric board 12 or some factor, the erecting device 10 It can be prevented from moving out of the installation place.

After the extension of the fixed leg 30, the lead screw 35 is manually rotated to raise the position of the electric board 12. After securing a sufficient height for the rotation of the electric board 12, the worm 38 attached to the ceiling plate 34 is rotated manually. By rotating the worm 38,
The worm wheel 40 meshing with this rotates, and the rotation support shaft 18 to which the worm wheel 40 is attached rotates. The mounting plate 20 and the electric board 1 attached to the rotation support shaft 18 by the rotation of the rotation support shaft 18
2 also rotates and shifts to the standing state. When the attitude of the electric board 12 is inclined to the opposite side beyond the standing state, the worm 38 may be rotated in the reverse direction to correct the worm 38. Since the rotation mechanism 36 is constituted by a worm gear having a large reduction ratio, the standing state of the electric board 12 can be set easily and accurately by human power. Further, in the worm gear, even if an excessive force is applied to the worm wheel 40 due to the imbalance of the electric board 12, the worm 38 does not rotate, so that there is no need to provide a mechanism for preventing reverse rotation. In addition, the structure of the standing device 10 itself can be simplified.

After the electric board 12 is erected, the lead screw 35 of the lifting jack 16 is rotated to lower the electric board 12. And the electric board 1
After the 2 has been lowered to the ground surface, the fastening bolts 48 are loosened, the mounting plate 20 is removed from the electric board 12, the electric board 12 and the upright device 10 are separated, and the installation work of the electric board 12 is completed.

In the present embodiment, the U-shaped stopper 50 is put on the rotation supporting shaft 18 and the U-shaped stopper 50 is fixed to the mounting plate 20, so that the mounting plate 20 and the rotation supporting shaft 18 are fixed. However, the present invention is not limited to this configuration. For example, a flange may be protruded from the rotation support shaft 18 and the flange may be used as a substitute for the U-shaped stopper 50.

Further, in the present embodiment, the rotating mechanism is a worm gear, but the present invention is not limited to this configuration, and any mechanism that does not rotate even if it rotates on the rotation supporting shaft side (worm wheel side). Needless to say, a wide range of rotation mechanisms can be applied. Also, although the description has been made using the lifting jack as the lifting means, other lifting means other than the lifting jack may be used.

[0026]

According to the present invention as described above,
A mounting plate on which the heavy object is loaded, a rotation support shaft that allows the mounting plate to be erected and turned at or near the center of gravity of the heavy object, and elevating means for elevating the mounting plate on which the heavy object is loaded With this arrangement, the movement of the center of gravity when the equipment is standing up can be reduced and the installation stability of the equipment itself can be secured, and the rotation speed at the time of standing up or the transportation height of the equipment can be set without using external power. Can be adjusted.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a structure of a heavy-weight rising device according to an embodiment;

FIG. 2 is an enlarged view of a main part of a rotation mechanism.

FIG. 3 is a structural explanatory view showing a mounting structure of the mounting plate 20 and the rotation support shaft 18.

4A and 4B are a front view and an upper side view illustrating an operation state of the upright device.

FIG. 5 is an explanatory view showing a conventional method for installing an electric board in a building.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric board 5 Dolly 6 Mounting plate 7 Hydraulic cylinder 10 Standing device 12 Electric board 14 Dolly 16 Lifting jack 18 Rotation support shaft 19 Supporting guide 20 Mounting plate 22 Side rail 24 Connecting rail 26 Handle 28 Wheel 30 Fixed leg 32 Lifting Arm 34 Ceiling plate 35 Lead screw 36 Rotating mechanism 38 Warm 40 Worm wheel 42 Flat surface 44 Curved surface 46 Through hole 48 Tightening bolt 50 U-shaped stopper 52 Mounting hole 54 Tightening bolt 56 Screw hole 58 Trans, etc.

Claims (3)

[Claims] 1. A mounting plate for loading a heavy object, wherein the mounting plate is provided with a rotation support shaft capable of standing and rotating at or near the center of gravity of the heavy object, and the mounting plate for loading the heavy object. An elevating means for elevating and lowering the object. 2. A worm wheel is attached to the rotary support shaft, and a worm that engages with the worm wheel is provided in the elevating means, and the rotary support shaft is rotatable by rotation of the worm wheel. The apparatus for erecting a heavy object according to claim 1, wherein: 3. The apparatus according to claim 1, wherein a mounting position of the mounting plate with respect to the rotation support shaft is variable along a height direction of the device. .