JPH09227069A - Hung-moving method and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To position a load from lateral direction, in attaching the load onto a rod-shaped arm part extending from a rod-shaped body and hung-moving a rod-shaped body with a balancing load applied on opposite side, by moving a balancing load supporting part up and down through a wire for upward and downward movement of a load mounted part. SOLUTION: A load is supported at the front end of an arm part 5b extending in a rod form from the fulcrum 5a of an overhanging beam type rod-shaped body 5, and a balancing load Wb is mounted on the front end of an arm part 5c extending to the opposite side of the fulcrum 5a by setting such a weight as the arm part 5c side always lowers. When the balancing load Wb is increased, balancing load supporting side arm 5c side lowers with the fulcrum 5a merely hung by main wires 6, 11, or vertical control requires enabling, so that the balancing load supporting part is hung by an auxiliary wire 7. By controlling the auxiliary wires 10, 7, the balancing load supporting part is moved up and down for positioning adjustment of a receiving device 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy object, for example, 200 kg to 500 to 600 kg, which is moved laterally under a bridge girder to be installed, carried into a building indoors from outside, or carried out outdoors. TECHNICAL FIELD The present invention relates to a suspension moving method and a suspension moving machine that are used when doing, and particularly to a method of suspending and moving horizontally and a suspension moving machine.

[0002]

2. Description of the Related Art FIG. 7 is a side view for explaining a method of transferring and mounting a receiver 4 on an upper end side surface of a pier 1, and FIG. 8 is a sectional view taken along line AA in FIG. Reference numeral 1 is a bridge pier on which bridge girders 2a and 2b on both sides are placed and supported.

However, when a large earthquake occurs, the bridge girders 2a and 2b may slip off the pier 1, and the bolts 3 embedded in the pier 1 may cause the receiving tool 4 to be attached to both sides of the pier 1. Fixed to the bridge girders 2a and 2b.
Even if the bridge girder is disengaged from the top, the bridge girder 2
It has been proposed to prevent the removal of a and 2b.

As shown in the figure, it is necessary to mount a large number of such receiving members 4 on both side surfaces of the upper end of the pier 1. Even if the receiving tool 4 is small, it weighs about 200 kg, and if it is large, the receiving tool 4 weighs 600 to 700 kg. Moreover, in the existing bridge, the bridge girder 2 is provided above the mounting portion of the receiving tool 4.
Since there are a and 2b, the receiver 4 cannot be lifted directly by a crane and moved to the upper end side surface of the pier 1.

For example, when a heavy object is carried into a building room from the outside, or conversely, it is carried out from the room to the outside,
Heavy objects cannot be lifted and moved directly.

[0006]

In such a case, the luggage is suspended from the side by suspending the luggage from the tip of a cantilevered arm as described in JP-A-6-298500. It is possible to

For that purpose, it is difficult to balance between the case where a heavy object is supported at the tip of the arm and the case where the arm is empty, and in order to keep the balance, it is necessary to make the balance weight movable. ing.

However, the structure is complicated, the handling is inconvenient, and there is a danger. It is also difficult to control the arm horizontally, and workability is poor when a heavy object is mounted in a narrow space where there are obstacles around, or when carrying in and out.

Since the suspension hook is lowered by the load of the luggage, the method of attaching the luggage to the arm is limited to the suspension hook, and the luggage cannot be placed on the arm, for example. Therefore, the construction method and the application place are limited, and the application is narrow.

The technical problem of the present invention is to pay attention to such a problem, and a machine having an extremely simple structure can freely move while surely balancing, and can easily move to any place from the side. To do so.

[0011]

The technical problem of the present invention is solved by the following means. According to the suspending and moving method of claim 1, a load is attached to a rod-shaped arm portion extending from an overhanging rod-shaped main body, and the rod-shaped main body is suspended and moved while a balance load is applied to the opposite side. When
Balanced load With or without luggage, always apply a balanced load with a weight that lowers the balance load attachment side. And, the supporting portion of the balance load is also hung with a wire,
By moving the balance load support portion up and down, the load attachment portion on the free end side is moved up and down.

According to this method, not only when there is no load at the tip of the rod-shaped arm portion but also when the load is supported, the weight of the balance load lowers the balance load support portion side. Since the balance load supporting portion is hung by a wire or the like, the rod-shaped main body and the rod-shaped arm portion can be obtained only by controlling the vertical movement on the balance load supporting portion side by winding or unwinding the wire. You can freely and easily operate the horizontal and tilt of the to control the vertical movement.

By loading and unloading the rod-shaped arm portion sideways into and out of the room from under the bridge girder or through the window of the building, the luggage attached to the tip of the rod-shaped arm portion can be easily moved. Also, the attachment of luggage to the tip of the rod-shaped arm is not limited to hanging, but it can be freely attached, and since the luggage does not move with respect to the rod-shaped arm during work, work is easy. And it's safe.

According to a second aspect of the present invention, luggage is attached to a rod-shaped arm portion extending from an overhanging rod-shaped main body, and the rod-shaped main body is hung and moved while a balance load is applied to the opposite side. , A machine for moving, mounting and dismounting luggage, which has means for hoisting the entire rod-shaped main body and means for hoisting the balance load supporting portion It is a lowering mobile device.

As described above, the suspension mobile unit of the present invention is
Since it has an extremely simple structure that only has means for suspending and suspending the entire rod-shaped main body and means for suspending and suspending the balance load supporting portion, there is a structure for moving the balance weight according to the weight of the luggage. In contrast, it can be realized at low cost and the handling operation is simple.

According to a third aspect of the present invention, there is provided a hoisting and moving machine in which the load supporting portion at the tip of the rod-shaped main body is bent at an angle β in a horizontal plane. In this way, if the luggage support section is bent inward in the horizontal plane with respect to the rod-shaped body, only the luggage support section can be brought into close contact with the mounting surface of the pier or the like to facilitate work. Also, the crane operation becomes easier.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the suspension moving method and the suspension moving machine according to the present invention will be described below.

[Principle of Suspending Mobile Device] FIG. 1 is a side view showing the principle configuration of a suspending mobile device according to the present invention. 5
Is an overhanging bar-shaped main body, and a fulcrum 5a thereof is suspended by main wires 6 and 11. The luggage Wa is supported at the tip of the arm portion 5b extending in a rod shape from the fulcrum 5a, and the arm portion 5c extending in the opposite side to the fulcrum 5a.
A balance load Wb is supported at the tip of the.

This balance load Wb is applied to the rod-shaped arm 5
The weight is sufficiently large so that the balance load supporting side arm 5c side is always lowered no matter what weight the load is supported on the tip of b.

That is, assuming that the dimension from the fulcrum 5a to the supporting portion of the load Wa is L1 and the dimension from the fulcrum 5a to the supporting portion of the balance load Wb is L2, L2 × Wb> L1 × Wa (1) The balance load Wb is set so that the expression of is satisfied.

As described above, when the balance load Wb is set to a large value, the balance load supporting side arm 5c side is lowered only by suspending only the fulcrum 5a by the main wires 6 and 11, so that the balance load supporting side arm 5c side is not lowered. In order to control the ascending / descending amount, the balance load supporting portion is suspended by another auxiliary wire 7.

In order to suspend and move the luggage Wa with this suspending and moving machine, the two wires 11 and 7 are suspended by separate hooks F1 and F2, respectively. Usually, since the crane vehicle is equipped with the parent hook F1 and the grandchild hook F2, the rod-shaped main body 5 is hung by the main hook F1 and moved or moved up and down. Also, the grand load hook F2 suspends the balance load support portion to prevent the balance load support portion from being abnormally lowered.

[Suspending and Moving Method] FIG. 2 shows how to use this suspending and moving machine to receive the receiving member 4 (the luggage W under the bridge girder 2a).
It is in a state where the work a) is moved and attached. First, the two wires 6 and 10 of the crane are paid out in synchronization with each other to move the suspension moving machine to a position where the target receiver is on standby, and the receiver 4 is attached to the tip of the rod-shaped arm portion 5b. Place and support.

Next, by synchronously winding the two wires 6 and 10, the suspension mobile is lifted, and the boom (jib) of the crane is rotationally moved, so that the rod-shaped arm 5b is bridged. Insert it from the side below 2a
Is moved to the mounting position below the bridge girder 2a. That is, since the wires 6 and 10 can move only to the outside of the bridge girder 2a, the tip of the rod-shaped arm portion 5b is inserted to the bottom of the bridge girder 2a, and the receiver 4 is positioned on the bolt 3 on the upper end side surface of the pier 1. To match.

At the time of this alignment work, the receiver 4 is moved to the position of the bolt 3 of the pier 1 by the control of the main wires 6 and 10, and then the auxiliary wire 10 and
By controlling 7, the balance load supporting portion is moved up and down, and the position of the receiving tool 4 is adjusted.

That is, when the receiver 4 side is excessively raised, the auxiliary wire 10 is wound to raise the balance load supporting portion side, and conversely, when the receiver 4 side is excessively lowered,
The auxiliary wire 10 is paid out, and the weight of the balance load is used to lower the balance load support portion side. In this way, by only controlling the vertical movement of the balance load supporting portion side by the single auxiliary wire 10, the receiving tool 4
The position adjustment can be easily performed.

After the mounting work of the receiving tool 4 is completed, the rod-shaped arm portion 5b is disengaged from the receiving tool 4 by operating the auxiliary wire 10 to make it free, and then the crane tower is rotated. By repeating the work of escaping the suspension mobile from the bottom of the bridge girder 2a, supporting the next receiver 4 again, and then attaching it to the pier 1, all the receivers 4 ... Fix it.

Embodiment of Suspending Mobile Machine FIG. 3 is a perspective view showing an embodiment of a suspending mobile machine according to the present invention. Horizontal wing-shaped arms 8a and 8b protruding on both sides are integrally fixed to the rod-shaped main body 5, and hanging ears 9a and 9b having wire attachment holes are fixed to the respective tips.

Then, the two wires 11a and 11b
Is suspended by the first hook F1 of the crane, so that the rod-shaped main body 5 can be lifted and lowered while maintaining stability in the rolling direction.

A suspension ear 12 having a wire mounting hole is fixed to the supporting portion of the rod-shaped main body 5 for the balance load Wb, an auxiliary wire 7 is attached, and the second hook F2 of the crane is used for suspension.

Actually, as shown in FIG. 6, the main wires 11a and 11b and the auxiliary wire 7 are hung by using two hooks F1 and F2 which are hung via the pulleys at the upper end of the boom 21 of the mobile crane. ing. The main wire 1
The 1a, 11b and the auxiliary wire 7 may be hung by either of the hooks of F1 and F2.

A rod-shaped arm portion 5b is provided on the rod-shaped main body 5 so as to be capable of expanding and contracting, and a horizontal pin 13 is provided in a horizontal hole 13 of the rod-shaped main body 5 and a horizontal hole 14 of the rod-shaped arm portion 5b. The length can be adjusted by inserting.

A mounting hole 15 for mounting and supporting a load is formed at the tip of the rod-shaped arm portion 5b, and is bent at an angle β.

FIG. 4 is a plan view and a side view showing another embodiment. In this embodiment, the rod-shaped main body 5 and the rod-shaped arm portion 5b are made of, for example, H-shaped steel, and the rod-shaped arm portion 5b is connected and fixed to the rod-shaped main body 5 with bolts and nuts 16. At this time, a plurality of types of rod-shaped arm portions 5b are prepared according to the situation of the site to be used, and the desired rod-shaped arm portion 5 is attached by attaching / detaching the bolts / nuts 16.
Can be used by exchanging with b.

By transporting the rod-shaped main body 5 and the rod-shaped arm portion 5b in a separated state and connecting them with the bolts and nuts 16 on site, the transportation becomes easy.

A luggage mounting portion 18 is connected to the tip of the rod-shaped arm portion 5b via a vertical shaft 17, and the luggage mounting portion 18 is rotated about the shaft 17 so that FIG. The bending angle β shown in can be changed. In addition, by selectively inserting pins into a plurality of holes formed in the rod-shaped arm portion 5b and the luggage attachment portion 18, the set angle β is set.
Can be fixed.

Two horizontal wings 19 and 20 are fixed to the luggage mounting portion 18, and the luggage Wa is placed and supported on the horizontal blades 19 and 20. The luggage Wa may be temporarily fixed with bolts and nuts and attached, or may be fastened and fixed with Shakoman (Bullman, vise) or the like.

Thick bolts 22 are screwed into the female screw holes formed in the horizontal wings 19 and 20 from below, and the luggage W is placed on the bolts 22.
By mounting and fixing a, moving to the attachment position and roughly aligning, and then rotating each bolt 22, the luggage Wa can be jacked up and aligned in the vertical direction. It should be noted that the bolt 22 is an example, and other arbitrary jack means may be mounted on the luggage mounting portion 18.

[Advantages of Bending Structure] FIG. 5 is a plan view for explaining the work of attaching the receiving member 4 to the pier 1 by the suspension moving machine having a structure in which the tip of the rod-shaped arm portion 5b is bent at an angle β. .

If the rod-shaped arm portion 5b is straight, it may not be possible to work unless the rod-shaped arm portion 5b is brought into close contact with the side surface of the pier 1, and there are protrusions such as bolts 3, In a narrow place, it is difficult to perform the work, and the crane operator and workers need to be skilled, and it may be dangerous.

On the other hand, when the tip of the rod-shaped arm portion 5b is bent at the angle β, only the luggage mounting portion 18 is brought into close contact with and close to the mounting portion such as the side surface of the pier 1, and the rod-shaped arm portion 5b is fixed to the pier 1. Since you can work in a state where it is separated from
Work can be done easily.

At the portion of the shaft 17 in FIG.
Folding No. 8 in the opposite direction by angle β,
It can be prepared for installation work on the right side of the.

In the above description, the case where the receiver 4 is attached to the pier 1 has been described as an example. However, when a heavy object is taken in and out of the building, the rod-shaped arm portion 5b of the suspension mobile machine of the present invention is taken in and out through the window. By doing so, you can easily work. As the luggage attachment section 18, an arbitrary structure can be selected and used according to the situation of the work site, and a luggage hanging structure or the like is also possible.

[0044]

According to the suspension moving method of claim 1,
Not only when there is no load on the rod-shaped arm extending from the rod-shaped body, but also when the load is supported,
The balance load supporting portion side is lowered by the weight of the balance load, but since the balance load supporting portion is suspended by a wire or the like, the wire is wound or unwound, and the balance load supporting portion side is vertically moved. Only by controlling the movement, the vertical position can be controlled by freely and easily operating the horizontal and tilt of the rod-shaped main body and the rod-shaped arm.

As a result, by putting the rod-shaped arm portion in and out from the side, it is possible to move and attach or remove a heavy object to any place.

Moreover, regardless of the weight of the luggage,
Since only the upper and lower sides of the balance load support portion are controlled, the load does not move with respect to the rod-shaped arm portion during work, and the load can be directly attached to the rod-shaped arm portion. Therefore, depending on the weight of the load and the presence or absence of the load, the load does not move with respect to the rod-shaped arm portion during the work and does not move unexpectedly, so that the handling is safe.

The attachment of the luggage to the tip of the rod-shaped arm is not limited to hanging, but any attachment is possible.

According to the suspending and moving machine of claim 2, the structure is extremely simple since it only has means for suspending and suspending the entire rod-shaped main body and means for suspending and suspending the balance load supporting portion, so that it is inexpensive. It can be realized and its operation is simple.

According to the third aspect of the present invention, since the luggage support portion at the tip of the rod-shaped body is bent in the horizontal plane, only the luggage support portion is brought into close contact with the mounting surface of the pier or the like to facilitate the work. It can be performed and the crane operation becomes easy.

[Brief description of drawings]

FIG. 1 is a side view showing the principle configuration of a suspension mobile unit according to the present invention.

FIG. 2 is a side view showing a state in which a suspending / moving machine of the present invention is performing suspending / moving work.

FIG. 3 is a perspective view showing an embodiment of a suspension mobile unit according to the present invention.

FIG. 4 is a plan view and a side view showing another embodiment of the suspension mobile unit according to the present invention.

FIG. 5 is a plan view showing a state where a suspending / moving machine having a structure in which a tip is bent at an angle β is being used for suspending / moving work.

FIG. 6 is a perspective view showing a state in which the mobile crane is suspended and moved.

FIG. 7 is a side view illustrating a method of transferring and mounting the receiving member on the upper end side surface of the pier.

8 is a cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

 1 Bridge pier 2a, 2b Bridge girder 3 Bolt 4 Receiving device (luggage) Wa Luggage Wb Balance load 5 Overhanging rod-shaped main body 7 Auxiliary wire F1 Second hook F2 Second hook 8a, 8b Horizontal wing-shaped arm 11a, 11b Main wire 17 Axis 18 Luggage mounting part β Bending angle of tip of rod-shaped arm

Claims (3)

[Claims] 1. A load is attached to a rod-shaped arm portion extending from an overhanging rod-shaped main body, and when the rod-shaped main body is suspended and moved with a balance load applied to the opposite side, Regardless of the presence or absence of the balance load, a balance load of such a weight that the balance load mounting portion side is always lowered is applied. A suspending and moving method characterized in that the load attachment portion of the arm portion is moved up and down. 2. A load is attached to a rod-shaped arm portion extending from an overhanging rod-shaped main body, and the load is suspended by moving the rod-shaped main body in a state where a balance load is applied to the opposite side to move the load. A suspending / moving machine for moving, mounting / removing, etc., characterized by having means for suspending and suspending the entire rod-shaped main body and means for suspending and suspending the balance load support portion. . 3. The suspension mobile machine according to claim 2, wherein the luggage support portion at the tip of the rod-shaped arm portion is bent by an angle β in the horizontal plane inward direction.