JPH03293295A - Construction material lifting device and method thereof - Google Patents

Abstract

PURPOSE:To perform safe and stable weight lifting work with a small sized tower crane having small reach by making material in one body with a lifting carriage, and lifting the heavy material along the guide rail of a building. CONSTITUTION:A fixing jig 16 is closed to make material S in one body with a lifting carriage 10, and a material suspending wire 6 suspended from the boom 31 of a tower crane 30 is hangingly locked to the material S. A carriage suspending wire 7 of a carriage lifting machine 40 is hangingly locked to the carriage 10. The wire winding machine 32 of the crane 30 and the lifting machine 40 are simultaneously driven. Then, the carriage 10 loaded with the material S is guided with a guide rail 21, and lifted along the outer wall 20 of a building. Nextly, at arrival of the carriage 10 on the uppermost part of the building, the jig 16 is opened to separate the material S from the carriage 10, and the material S is provided on a prescribed place with the crane 30. After unloading the material S, the wire 7 of the lifting machine 40 is released, the carriage 10 is brought down along the outer wall 20 up to the ground, and lifting condition can be set again.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention enables work to be carried out on a narrow site by using a device that can lift construction materials along the outer wall of a building, and also enables work to be carried out without using a large crane. This invention relates to an unnecessary construction material lifting device and a lifting method.

[Conventional technology]

Traditionally, for example, when constructing medium- to high-rise buildings,
As shown in FIG. 12, large construction materials 2 such as columns, beams, and external wall boards are lifted from the ground by a tower crane 1, and
These are installed in predetermined positions and joined with bolts or the like. 3 indicates the pillar, 4 the beam, and 5 the exterior wall board. L indicates the length of the working radius called the reach of the tower crane 1, and 2 indicates the distance from the building outer wall 5 to the material lifting wire 6, taking into account the swing of the material 2 to be lifted.

[Problems to be Solved by the Invention] However, in the lifting method using such a conventional material lifting device, the material being lifted is in a state of being freely suspended by the lifting wire, so that the material cannot be lifted. When lifting materials, it is difficult to attenuate the lateral wobbling and rotation caused by the material being suspended diagonally rather than vertically, making it unstable and dangerous.When the wind is strong, it is dangerous and cannot be lifted. Due to the lateral drift of time, materials must be lifted at a distance R from the building under construction for safety. - There were various problems such as the need to use a large crane due to the need for a large crane.

The present invention was made in view of these conventional problems, and aims to solve the above problems by, for example, using a lifting cart that moves up and down along the outer wall of a building.

[Means to solve the problem]

The present invention includes a lifting cart having guide wheels that engage with guide rails provided on an outer wall of a building, and a loading platform provided with a hanging load fixing jig, and a lifting cart that is moved up and down along the guide rail. A construction material lifting device consisting of a truck lifting machine and a hoist crane for lifting suspended loads,
The lifting truck used for this device is equipped with a loading platform that can be raised to the extent that the suspended load is separated from the suspended loading temporary cradle when loading a suspended load, wheels for ground movement at the bottom of the lifting truck, and the outer wall of the building. It is desirable to have a stop device that can hold the stop position at the required height of the building while engaged with the guide rail of the building.

Furthermore, the present invention uses the above-mentioned device to place and fix a suspended load on a lifting truck that can be raised and lowered along guide rails provided on the outer wall of a building, and then operates a tower crane and a truck lifting machine to lift the suspended load. At least lift the hoisting cart and the load at the same time, and when they reach the top of the building, release the hoisting load fixed to the hoisting cart and move it from above the hoisting cart, and then move only the hoisting cart to the guide rail. The present invention provides a method for lifting construction materials by lowering the material along the road and making it possible to lift the material again. It is desirable to use a dolly lifting machine to lift a hoisting dolly loaded with a load to the top of a building without using a tower crane.

[1] Since the present invention has the above-described configuration, when lifting a suspended load, the construction material that is the suspended load is first placed and fixed on the lifting cart. Thereafter, the lifting truck is lifted along the guide rails of the building by the simultaneous operation of the tower crane and the truck lifting machine, so that the materials are not suspended in the air by the tower crane alone, as in the past.

Therefore, there will be no lateral sway or rotation of the suspended load due to diagonal suspension, or lateral oscillation due to wind pressure during hoisting, making it possible to work even in strong winds. Since there is no need to separate the crane from the outside wall of the building, a small tower crane with a small reach can be installed, making it possible to perform lifting operations within a narrow site.

Furthermore, if the construction material is small and its weight is within the lifting capacity of the trolley lifting machine, it is possible to lift the material only with the trolley lifting machine without using a tower crane.

Furthermore, the lifting trolley with wheels at the bottom moves to the suspended load temporary cradle on the ground, raises the load cradle of the lifting truck, lifts the suspended load on the temporary cradle, retreats to the building's outer wall, and then By engaging the guide wheels with the guide rails on the building's outer wall, engaging the suspended load with the lifting wire of the tower crane, and engaging the lifting truck with the trolley lifting wire of the trolley lifting machine, the crane and the lifting machine are operated. Capable of lifting materials stably. When the building is lifted to the highest point (or the required height W), the lifting cart can be fixed to the outside wall at that height by operating the stopper attached to the lifting cart within the guide rail groove. can.

After lifting and moving the materials, the lifting cart is lowered to the ground along the guide rail, and the above operations are repeated to ensure safe and smooth construction work.

〔Example〕

Hereinafter, the present invention will be explained based on the drawings. 1st to 1st] 1
The figure is a diagram showing an embodiment according to the present invention, in which the first and second
The figures are a plan view and an elevation view showing the engagement relationship between the lifting trolley 1o and the outer wall 20 of the building.

As shown in FIG. 9 as an overall conceptual diagram, the structure of the construction material lifting device includes a tower crane 3o installed in the building to be constructed and a lifting cart 10 with guide wheels 15 engaged with guide rails 21 of the outer wall 2o. The main components are a trolley lift [40] for hoisting the trolley, and a material hoisting wire 6 that engages the material S on the trolley 10.

Lifting cart 10 forming the main component of the material lifting device of the present invention
consists of a loading platform 13 formed integrally with the vertical frame 11 by combining the vertical frame 11.11 and the upper and lower horizontal frames J, 2a12b on a frame body, and on this loading platform, R is placed. Capital + A
' A fixing device for clamping and fixing the material S from both sides is provided, and the fixing jig 16 is attached to the material S along the jig rail I7.
The structure is such that it can be clamped or released. However, the fixing jig may be driven by hydraulic, electric, or manual methods. Moreover, if the material S is iron material, a magnet can also be used as the clamping means.

On the wall side of the vertical frame 11 of the lifting truck 10, an axle 14 that engages with groove-shaped guide rails 21 formed on the outer wall 20 of the building above and below, and a guide wheel 15 attached to the tip of the axle 14 are provided. The lifting and lowering of the hanging carriage 10 is carried out along the guide rail 21. Further, as shown in FIGS. 8 and 10(b), a stopper 18 is provided on the vertical frame 11 of the lifting truck 10 to engage with the guide rail and temporarily fix the truck 10 to the outer wall 2o. You can also do it. That is, a grating 18b made of an elastic material such as rubber is built into the tip of a stopper arm 18a attached to the vertical frame 11,
For example, by protruding in the left-right direction using hydraulic pressure or the like and pressing against the inner surface of the guide rail 21, the lifting truck 10 is held and fixed in that position by the frictional force.

As another embodiment of the lifting truck 10, as shown in Figs.
As shown in FIG. 1(a), the cart 10 is moved so that the loading platform 13A is located directly below the material S placed on the temporary loading platform 25, and the loading platform 13A is slightly raised to temporarily place the material S. By moving the cart 10 backward and engaging the guide wheels 14 with the guide rails 21, it is possible to raise and lower it along the outer wall 20 as in the previous embodiment. can.

Next, the lifting method will be explained.

In the lifting device configured as described above, first, as shown in FIG. place

However, at this time, the fixing jig 16 is kept open.

Next, the fixing jig 16 is closed to integrate the material S and the lifting cart 10, and the material hoisting wire 6 hanging from the tip of the boom 31 of the tower crane 30 is hung on the material S (Fig. 4). The bogie hoisting wire 7 of the bogie hoisting machine 40 is hung on the hoisting bogie 10, and the wire hoisting machine 32 of the tower crane 30 and the hoisting machine 40 are simultaneously driven. Most of the lifting load at this time is shared between the two wire hoisting machines 32, and the hoisting machine 40 drives the bogie hoisting wire 7 to such an extent that it does not loosen. The lifting cart 10 loaded with materials S is guided by the guide rails 21 and ascends along the outer wall 20 of the building as shown in FIG. Then, when the lifting cart 10 reaches the top of the building as shown in FIG.
First, the fixing jig 16 is opened to separate the material S from the lifting cart 10, and the material S is installed at a predetermined location by the crane 30. In addition, at this time, the loading platform 13 is raised higher than the building's handrail, and the materials are loaded using a forklift or the like on the building's work floor.
can also be taken in directly (see Figure 7).

0 Also, at this time, as already explained in Figure 8,
The lifting trolley 10 is suspended from the outer wall 2 at that position by the stopper 18.
It is also possible to fix it to 0. After loading and unloading the material S, loosen the trolley suspension wire 7 of the lifting machine 40 and lift it.
By lowering the lifting truck 10 along the outer wall 20 and returning it to the ground, the load (material) can be lifted again.

(Effects of the Invention) As explained above, according to the present invention, the suspended load (material) is integrated with the lifting truck and lifted along the guide rail of the building. Since no sideways movement occurs, lifting work can be carried out safely and stably.Therefore, work can be carried out even if there is little free space on the site.
The ability to use a small tower crane with a small reach has made it possible to significantly improve work efficiency and economic efficiency.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a plan view showing the engagement relationship between the lifting cart and the outer wall of the building in an embodiment of the present invention, Fig. 2 is an elevation view thereof, and Fig. 3
The figure is a side view of a suspended load placed on a hoisting cart on the ground, Figure 4 is a side view showing the suspended load in Figure 3 is fixed and the material hoisting wire is hooked to the suspended load, and Figure 5 Figure 6 is a side view showing the lifting truck being lifted along the wall, Figure 6 is a diagram showing the lifting truck being lifted to the top of the building and the suspended load has been released from the loading platform, and Figure 7 is a side view showing the lifting truck being lifted up along the wall. A diagram showing how the loading platform is lifted higher than the top of the building and the suspended load is taken in by a forklift. Figure 8 is an explanatory diagram of how the stopper installed on the lifting cart is operated within the guide rail groove. Figure 9 is the main FIG. 10 is a conceptual diagram of the overall configuration of the embodiment of the invention, and FIG. 10 is a second embodiment of the lifting truck, FIG.
is a side view thereof, FIG. 11 is an explanatory diagram of the operation of the embodiment shown in FIG. 10, and FIG.
Figure (b) is a side view of the lifting truck when it is moved to the temporary cradle, Figure (C) is a diagram showing the lifted load loaded on the lifting truck's lifting platform, and Figure (d) is The twelfth time in the same figure (C) showing the state in which the suspended load is fixed to the loading platform is an overall conceptual diagram of the lifting device in the conventional example. 1 10... Lifting trolley, 13... Receiving platform, 13A...
- Elevating loading platform, 15... Guide wheels, 18... Stopper device, 19... Moving wheels, 20... Building exterior wall, 21... Guide rail, 25... Temporary receiving platform, 30・
... Tower crane, 40... Trolley lifting machine.

Claims (5)

[Claims] (1) A lifting trolley that has guide wheels that engage with guide rails provided on the outer wall of the building and has a hanging load fixing jig on the loading platform, and a lifting trolley that moves the lifting trolley up and down along the guide rail. Construction material lifting equipment consisting of heavy equipment and a tower crane that lifts suspended loads. (2) The lifting truck has a receiving platform that can be raised by a distance to separate the suspended load from the suspended load temporary cradle when loading the suspended load, and wheels for ground movement at the lower part of the lifting truck. Device. (3) The construction material lifting device according to claim 1 or 2, wherein the lifting cart has a stopper device that can maintain a stopping position at a required height of the building while being engaged with a guide rail on the outer wall of the building. (4) After placing and fixing the suspended load on a lifting truck that can be raised and lowered along guide rails installed on the outer wall of the building, the tower crane and truck lifting machine that lifts the suspended load are operated, and the lifting truck and When it reaches the top of the construction, the suspended load fixed on the lifting truck is released and moved from the lifting truck, and then only the lifting truck is lowered along the guide rail. , a method for hoisting construction materials, characterized by making the hoisted load ready for hoisting again. (5) If the load to be lifted is small and its weight is within the lifting capacity of the truck lifting machine, the lifting truck loaded with the load can be lifted to the top of the building by the truck lifting machine without using a tower crane. A method for hoisting building materials according to claim 4.