JPH10157979A - Assembling hoist device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembling hoist device which can be easily assemble and disassembled without using a particularly heavy machine. SOLUTION: A device comprises two portal frames 4 connecting a pair of columnar units 3 capable of opening a leg respectively in a cross member 2, a wheel device 5 mounted at a veriable mounting angle in a lower part of each columnar unit 3, a tensile means 6 for moving the columnar unit 3 of each portal frame 4 from a leg opened condition to a vertically standing condition, a pair of cross connecting frames 8 for forming a square frame 7 by connecting between upper parts of each portal frame 4, a cross bridge member 9 mounted capable of being mounted/demounted in/from the square frame 7, and a hoist means 12 directly or indirectly suspended in the cross bridge member 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembling type lifting device used for assembling or disassembling heavy objects such as large electric machines.

[0002]

2. Description of the Related Art Conventionally, when assembling or disassembling heavy objects such as large electric machines indoors, lifting devices such as overhead traveling cranes and portal cranes have been used. An overhead traveling crane is constructed by mounting a crane device on traveling rails installed near the ceiling of a building. It is constructed by mounting on a running rail. When assembling or disassembling heavy objects at a construction site or the like, an all-weather house is installed, and an overhead traveling crane or the like is provided in the house. In any case, overhead traveling cranes and portal cranes are assembled and installed or removed using heavy equipment such as mobile cranes.

[0003]

However, in a relatively narrow place such as a construction site, a lifting device is installed,
In many cases, heavy equipment for removal cannot be imported. Further, even when heavy equipment can be carried in, a large cost is required to transport and operate the heavy equipment to the site. Accordingly, an object of the present invention is to provide a lifting device that can be easily assembled and disassembled and removed without using heavy equipment.

[0004]

A lifting device according to the present invention for solving the above-mentioned problems comprises two portal frames each having a horizontal member and a pair of pillars connected to both ends thereof so as to be freely opened.
A wheel device for movement attached to the lower part of each pillar at a variable attachment angle, and a tensioning means provided between the pillars for moving the pillars of each portal frame from an opened state to an upright state. A pair of horizontal connection frames for detachably connecting upper portions of the portal frames to form a rectangular frame, a horizontal member detachably mounted on the rectangular frame, Lifting means suspended directly or indirectly on the member.

[0005] The lifting device of the present invention has a two-legged state on the ground.
A pair of horizontal connecting frames are connected between two portal frames to form a rectangular frame, a horizontal member is mounted on the rectangular frame, and a lifting means is hung on the horizontal member, and tension is applied. It is assembled by making each column upright by means. Further, in order to disassemble the assembled lifting means, the lifting means may be disassembled in a step reverse to the above-described assembling step. Since the lifting device of the present invention can be assembled and disassembled easily and quickly with human power, there is no need to use heavy equipment. Therefore, it can be used at a low cost and in a relatively narrow place.

In a preferred embodiment of the lifting device according to the present invention, the tensioning means includes a winding device provided on one of the columns of the portal frame, a pulley device provided on the other of the columns, One end has a wire or a chain which is hung on the one pillar and stretched so as to be wound on a winding device via a pulley device. In another preferred embodiment of the lifting device of the present invention, when each column is in an upright state, the angle fixing means for fixing the mounting angle of the column 3 with respect to the wheel device 5 is different from each column. Is provided. In a further preferred embodiment of the lifting device according to the invention, the lifting means is movably suspended directly or indirectly on the transverse member.

In still another preferred embodiment of the lifting device according to the present invention, a pair of horizontal members are provided so as to be detachably mounted on the rectangular frame at predetermined intervals.
A rail body is detachably mounted between the horizontal members, and a lifting means is hung on the rail body so as to run freely. In still another preferred embodiment of the lifting device of the present invention, at the corner where the horizontal member and the column are connected,
A reinforcing breath is provided to removably connect the horizontal member and the column at an angle. In still another preferred embodiment of the lifting device of the present invention, at a corner where the horizontal connection frame and the column are connected, a reinforcing breath for diagonally connecting the horizontal connection frame and the column to be detachable is provided. Provided.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state where the lifting device of the present invention is assembled. The lifting device 1 includes a horizontal member 2,
Two column-shaped frames 4 each having a pair of pillars 3 connected to both ends thereof so as to be freely opened, a wheel device 5 for movement attached to a lower portion of each pillar 3 at a variable mounting angle, It has a tensioning means 6 provided between the columns 3 to move the columns 3 of the portal frame 4 from the opened state to the upright state. Further, a pair of horizontal connecting frames 8 for forming a rectangular frame 7 by detachably connecting the upper portions of the portal frames 4 to the lifting device 1 are provided.
A pair of horizontal members 9 removably mounted between the pair of horizontal connection frames 8, a rail body 11 detachably mounted between the horizontal members 9 by a saddle 10, and the rail body 11 Lifting means 12 which is suspended so that it can run freely
It has.

The horizontal member 2 and the column 3 in each of the portal frames 4 are connected to each other by, for example, hinges 13 so as to be freely opened.
At each corner where the horizontal member 2 and the column 3 are connected, a reinforcing breath 1 provided diagonally between the horizontal member 2 and the column 3
By 4, for example, it is detachably connected by bolt connection or the like. The tensioning means 6 includes a winding device 15 provided on one of the pillars 3 constituting the portal frame 4, a pulley device 16 provided on the other pillar 3, and one end portion of the one pillar 3. Hooks 15a such as pins having holes provided in
It has a wire 17 stretched so as to be wound on a winding device 15 via a pulley device 16. Wire 1
7 may be a chain. The winding device 15 can be driven manually by providing a rotating handle as shown in the figure, but may be a power-driven type equipped with a rotation driving device such as a deceleration motor.

Each of the moving wheel devices 5 has a substrate 18 and four casters 19 provided on the bottom surface of the substrate.
It is attached to the lower part of each column 3 by the hinge part 20 so that the attachment angle is variable. When each column 3 is in the upright state, an angle fixing means 21 for fixing the mounting angle of the column 3 to the wheel device 5 is provided at a lower portion of each column 3.
In the illustrated example, the angle fixing means 21 has fixing members 22 and 23 for connecting obliquely between both sides of the column 3 and the substrate 18 by bolting or the like. Thus, the fixing member 2
The provision of the members 2 and 23 makes it possible to more stably maintain the upright state of each column 3.

A connecting portion 24 having a short length is extended in the lateral direction from the top of each column 3, and the ends of the pair of horizontal connecting frames 8 can be attached to and detached from the connecting portion 24 by using a connecting plate 25 and bolts. To form a rectangular frame 7.
Furthermore, at each corner where the horizontal connecting frame 8 and the column 3 are connected, a reinforcing breathing 26 is provided at an angle between the horizontal connecting frame 8 and the column 3 and is detachably connected by, for example, bolting. Is done. The horizontal connection frame 8 can be detachably connected to the horizontal member 2. As a horizontal member 9 detachably mounted between a pair of horizontal connecting frames 8,
A rail-shaped mold steel material or the like can be used. The horizontal member 9 may be simply placed on the horizontal connecting frame 8 as shown, but may be connected to the horizontal connecting frame 8 with bolts or the like. Note that it is convenient for assembling the lifting device to make the horizontal member 9 slightly longer than the interval between the pair of horizontal connecting frames 8.

The rail body 11 is connected to the lower side of a saddle 10 having a U-shaped cross section which is hung on each of the transverse members 9 by using bolts or the like, and the gear trolley 27 of the lifting means 12 is connected to the rail body 11. Be hanged up. And the gear trolley 27
Is connected to the chain block 28. Reference numeral 29 denotes a chain hooked on the chain block 28, and a hook 30 for lifting is provided at the tip of the chain. Lifting means 1
The rail 2 is thus indirectly hung on the horizontal member 9 via the rail 11, but the rail 11 may be omitted and the lifting means 12 may be hung directly on the horizontal member 9. In that case, only one horizontal member 9 is provided, and has a shape that also serves as the function of the rail body 11.

Next, the procedure for assembling the lifting device of the present invention will be described with reference to FIGS. First, as shown in FIG. 2A, the wheel member 5 is connected to the horizontal member 2 in which the hinge portions 13 are connected to both ends by bolts or the like and the pair of breaths 14 are connected to the lower side by bolts or the like. And a pair of pillars 3 in a state where the fixing member 22 is connected to the lower part by bolts or the like
Are prepared in two sets. In FIG. 2, the winding device 15 and the pulley device 16 provided on the column 3 are omitted.

Next, as shown in FIG. 2 (b), two sets of deformed portal frames 4 are formed by connecting the horizontal members 2 and the pillars 3 at the hinge portions 13, and between each of the portal frames 4. The ends of a pair of horizontal connecting frames 8 (not shown) are connected to the connecting plate 2.
5 to form a rectangular frame 7 (see FIG. 1). At this time, the tip of the breath 26 previously connected to the horizontal connection frame 8 with bolts or the like is connected to the column 3 with bolts or the like. A pair of horizontal members 9 (not shown) are placed at a predetermined interval between the pair of horizontal connecting frames 8, and a rail body 11 in which a lifting means 12 is connected to a saddle 10 previously engaged with each horizontal member 9. Concatenate. FIG. 2 shows the saddle 10, the rail body 11, and the lifting means 12.
Are also omitted.

Next, one end of a wire 17 constituting the tension means 6 is hooked on a hook 15a provided on the column 3, and the wire 17 is wound around the winding device 15 via a pulley device 16. Take it and stretch it. Next, as shown in FIG. 2C, the wire 17 is wound by the winding device 15,
Each column 3 of the portal frame 4 is gradually raised by the action of the wheel device 5, and at this time, the column 3 of each portal frame 4 needs to be evenly raised. In this example, since the pulley device 16 is used, the column 3 can be started up with half the original driving force.

FIG. 2 (d) shows a state in which each column 3 is erected in this manner. In a state where each portal frame 4 is formed, the other end of the breath 14 connected to the horizontal member 2 comes into contact with the side surface of the column 3, and the tip is connected to the column 3 with a bolt or the like. Further, in this state, the distal end of the fixing member 22 provided at the lower part of the column 3 comes into contact with the substrate 18 of the wheel device 5, and the distal end is connected to the substrate 18 by bolts or the like.

FIG. 3 is a partially enlarged front view showing the relationship between the horizontal member 2, the breath 14, the column 3 and the wheel device 5 in the state of FIG. 2 (b), and FIG. 4 is a column in the state of FIG. 2 (c). FIG. 5 is a partially enlarged side view showing the relationship between the body 3, the lateral connection frame 8, the wheel device 5, and the like. FIG. 5 shows the relationship between the horizontal member 2, the breath 14, the column 3, the wheel device 5, and the like in the state of FIG. It is a partial enlarged front view shown. The fixing member 23 is shown in FIG.
Is connected between the lower part of the column 3 and the substrate 18 of the wheel device 5 with bolts or the like, but the fixing member 23 may be omitted in some cases. Using the lifting device 1 assembled in the state of FIG. 2D, that is, the state of FIG. 1, it is possible to assemble or disassemble a heavy object. Then, in order to return the used lifting device 1 to the state before the assembling, the lifting device 1 is disassembled in the reverse procedure. That is, the state may be changed from the state shown in FIG. 2D to the state shown in FIG.

[0018]

The assembling type lifting apparatus of the present invention constructed as described above can be easily and quickly assembled and disassembled by human power, so that it is not necessary to use a heavy machine. Therefore, it can be used at a low cost and in a relatively narrow place.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state where a lifting device of the present invention is assembled.

FIG. 2 is a diagram illustrating a procedure for assembling the lifting device of the present invention.

FIG. 3 is a cross member 2 and a breath 1 in the state of FIG.
FIG. 4 is a partially enlarged front view showing a relationship between a column 3, a wheel device 5, and the like.

FIG. 4 is a partially enlarged side view showing the relationship among the column 3, the lateral connection frame 8, the wheel device 5, and the like in the state of FIG. 2C.

FIG. 5 is a cross member 2 and a breath 1 in the state shown in FIG.
FIG. 4 is a partially enlarged front view showing a relationship between a column 3, a wheel device 5, and the like.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lifting device 2 Horizontal member 3 Column body 4 Portal frame 5 Wheel device 6 Tension means 7 Square frame 8 Horizontal connecting frame 9 Horizontal member 10 Saddle 11 Rail body 12 Lifting means 13 Hinge part 14 Breathing device 15a Hanging part 16 Pulley device 17 Wire 18 Substrate 19 Caster 20 Hinge part 21 Angle fixing means 22 Fixing member 23 Fixing member 24 Connecting part 25 Connecting plate 26 Breath 27 Gear trolley 28 Chain block 29 Chain 30 Hook

Claims (7)

[Claims] 1. Two portal frames 4 each having a horizontal member 2 and a pair of pillars 3 connected to both ends thereof so as to be freely opened.
A moving wheel device 5 attached to the lower part of each column 3 at a variable mounting angle; and a column for moving the column 3 of each portal frame 4 from an opened state to an upright state. Tensioning means 6 provided between the three
A pair of horizontal connecting frames 8 for detachably connecting upper portions of the portal frames 4 to form a rectangular frame 7; and a horizontal member 9 removably mounted on the rectangular frame 7.
And a lifting means 12 suspended directly or indirectly from the horizontal member 9. 2. A tensioning means 6 includes a winding device 15 provided on one column 3 of the gate-shaped frame 4, a pulley device 16 provided on the other column 3, and one end portion of the one of the one column. 2. A wire 17 which is hung on the column 3 and stretched so as to be wound on the winding device 15 via the pulley device 16.
An assembling type lifting device according to item 1. 3. Each column 3 is provided with an angle fixing means 21 for fixing the mounting angle of the column 3 to the wheel device 5 when each column 3 is in the upright state. Or the assembly type lifting apparatus according to claim 2. 4. The assembling type lifting apparatus according to claim 1, wherein the lifting means is directly or indirectly suspended from the horizontal member so as to be able to travel. 5. A pair of horizontal members 9 which are removably mounted on the rectangular frame 7 at predetermined intervals, and a rail body 11 is removably mounted between the horizontal members 9; The assembly type lifting apparatus according to any one of claims 1 to 4, wherein the lifting means (12) is hung on the vehicle (11) so as to be freely movable. 6. A brace 14 is provided at a corner where the horizontal member 2 and the column 3 are connected to each other so as to connect the horizontal member 2 and the column 3 detachably and obliquely. An assembling type lifting device according to item 1. 7. A brace 26 is provided at a corner where the horizontal connection frame 8 and the column 3 are connected to each other so as to removably connect the horizontal connection frame 8 and the column 3 in an oblique manner. An assembling type lifting device according to any one of the above.