JP2512196B2 - Construction material hoisting device and hoisting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention uses a device capable of hoisting construction materials along the outer wall of a building to enable work on a narrow site and to provide a large crane. TECHNICAL FIELD The present invention relates to an unnecessary construction material hoisting device and hoisting method.

[Conventional technology]

Conventionally, for example, when constructing middle- and high-rise buildings, as shown in FIG. 12, large construction materials 2 such as columns, beams, and outer wall plates are lifted from the ground by a tower crane 1, and these are predetermined. Install at the position and join with bolts.
In the figure, 3 is a pillar, 4 is a beam, and 5 is an outer wall plate. L represents the length of the working radius called the reach of the tower crane 1,
l is the outer wall 5 of the building in consideration of the swing of the material 2 to be lifted.
To the material lifting wire 6 is shown.

[Problems to be Solved by the Invention]

However, in the lifting method using such a conventional material hoisting device, the material being hoisted is in a state of being freely hung by the hoisting wire, so the material is not slanted vertically at all when hoisting. Because the side shake and rotation caused by being shaken are difficult to attenuate, it is unstable and dangerous, it is dangerous to lift when it is windy, and the side shake at the time of hoisting causes the material to come from the building under construction. In order to anticipate safety, the space must be lifted at a distance of l, so it is not possible to work freely if there is no room on the site. Therefore, since a reach L of the crane is required, a large crane must be used. There were various problems such as.

The present invention has been made in view of such conventional problems, and an object of the present invention is to solve the above problems by using a hoisting carriage that moves up and down along the outer wall of a building.

[Means for solving the problem]

The present invention relates to a hoisting truck having guide wheels engaged with a guide rail provided on an outer wall of a building, and a hoisting truck provided with a hoisting load fixing jig on a cargo receiving stand, and a truck for hoisting the hoisting truck along the guide rails. This is a construction material hoisting device consisting of a hoist and a tower crane that hoists the hoisted load.The hoisting trolley used for this device lifts the hoisting load apart from the tentative load receiving stand when loading the hoisting load. With a possible receiving platform,
It is desirable to provide wheels for ground movement in the lower part of the hoisting trolley, and to have a stopper device capable of holding a stop position at a required height of the building while engaging with a guide rail of the outer wall of the building.

Further, the present invention uses the above device to operate a tower crane and a dolly hoist to lift a suspended load after placing and fixing the suspended load on a lifting carriage that can be raised and lowered along a guide rail provided on the outer wall of the building. At the very least, hoist the hoisting truck and the hoisting load at the same time, release the hoisting load that was fixed to the hoisting truck when reaching the top of the building, and move from above the hoisting truck, then only the hoisting truck is the guide rail. It provides a method of hoisting construction materials that lowers the hoisting load again so that the hoisting load can be hoisted again, and if the weight of the hoisting load is within the lifting capacity of the truck hoist, use a tower crane. Without doing so, it is desirable to hang the hoisting truck loaded with the hoisting load on the top of the building by the hoisting machine.

[Work]

Since the present invention has the above-mentioned configuration, when hoisting a suspended load, the construction material that is the suspended load is first placed and fixed on the hoisting carriage. After that, the hoisting truck is hoisted along the guide rails of the building by the simultaneous operation of the tower crane and the hoisting machine, so that the material is not suspended in the air only by the tower crane as in the conventional case.

Therefore, horizontal swing and rotation of the suspended load due to diagonal suspension of the suspended load, or lateral shake due to wind pressure received during lifting does not occur, so it is possible to work even in strong winds. Since there is no need to separate it from the outer wall, it is sufficient to equip a small tower crane with a small reach, and it is possible to perform lifting operations in a small site.

If the construction material is small and its weight is within the lifting capacity of the truck hoist, it is possible to hoist the material only with the truck hoist without using the tower crane.

Furthermore, the hoisting trolley with wheels at the bottom moves to the above-mentioned suspended load temporary cradle, raises the hoisting cradle's cargo cradle, lifts the hung load above the temporary cradle, and retracts to the building outer wall. By engaging the guide wheels with the guide rails on the outer wall of the building, engaging the hoisting wire with the hoisting wire of the tower crane, and engaging the hoisting trolley with the trolley hoisting wire of the dolly hoist to operate the crane and hoisting machine, Stable lifting of materials is possible. When the building is lifted to the highest part (or the required height position), the lifting carriage can be fixed to the outer wall at the height position by operating the stopper attached to the lifting carriage in the guide rail groove.

Thus, after hoisting and moving the materials, the hoisting carriage is lowered to the ground along the guide rails, and the above work is repeated, so that safe and smooth construction can be performed.

〔Example〕

Hereinafter, the present invention will be described with reference to the drawings. 1st to 11th
FIG. 1 is a diagram showing an embodiment according to the present invention.
The drawings are a plan view and an elevation view showing the engagement relationship between the hoisting carriage 10 and the building outer wall 20.

As for the construction of the construction material hoisting device,
As shown in the figure, a tower crane 30 installed in a building to be constructed, a hoisting carriage 10 in which guide wheels 15 are engaged with guide rails 21 of an outer wall 20, a bogie hoist 40 for hoisting the bogie, and a bogie. Material suspension wire 6 that engages with the material S on 10
Is the main component.

Lifting truck 10 which is a main member of the material lifting device of the present invention
Is composed of a vertical frame 11, 11 and upper and lower horizontal frames 12a, 12b on a frame body, and is composed of a cargo carrier 13 integrally formed with the vertical frame 11, and is placed on this cargo carrier. A fixing device for clamping and fixing the material S from both sides is provided, and the fixing jig 16 has a structure for clamping or releasing the material S along the jig rail 17. However, the fixing jig may be driven by any of hydraulic, electric, and manual methods. Further, when the material S is an iron material, a magnet can be used as the sandwiching means.

On the wall side of the vertical body 11 of the hoisting carriage 10, there are provided an axle 14 that engages with a groove-shaped guide rail 21 formed on the outer wall 20 of the building above and below and a guide wheel 15 attached to the tip thereof. The lifting carriage 10 is moved up and down along the guide rails 21. As shown in FIGS. 8 and 10 (b), the vertical frame 11 of the hoisting carriage 10 is provided with a stopper 18 that engages with the guide rail and temporarily fixes the carriage 10 to the outer wall 20. You can also That is, a stopper 18a attached to the vertical frame 11 has a built-in grip 18b formed of an elastic body such as rubber at the tip thereof, and is protruded in the left and right direction by, for example, hydraulic pressure so as to be pressed against the inner surface of the guide rail 21 to cause friction. The lifting truck 10 is held and fixed in that position by force.

As another embodiment of the hoisting carriage 10, as shown in FIGS. 10 and 11, the load receiving base 13 is an elevating type load receiving base 13A, and a wheel 19 for moving the bogie is provided in place of legs, as shown in FIG. As shown in (a), the trolley 10 is moved so that the material receiving platform 13A is located immediately below the material S placed on the temporary receiving platform 25, and the material receiving platform 13A is slightly lifted to temporarily receive the material S. It is possible to move up and down along the outer wall 20 in the same manner as in the above-described embodiment by further separating (FIG. 11C) and then moving the carriage 10 backward to engage the guide wheel 14 with the guide rail 21.

 Next, the lifting method will be described.

In the lifting device configured as described above, first,
As shown in FIG. 3, the material S is placed by a forklift or the like on the load receiving base 13 of the hoisting carriage 10 which is engaged with the guide rail 21 and is located above the ground. 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 hoisting carriage 10, and the material hanging wire 6 hanging from the tip of the boom 31 of the tower crane 30 is hooked on the material S (Fig. 4). The bogie suspension wire 7 of the bogie hoist 40 is hooked on the hoist 10 to drive the wire hoist 32 and the hoist 40 of the tower crane 30 at the same time. Most of the hoisting load at this time is shared by the wire hoisting machine 32, and the hoisting machine 40 hoists and drives the carriage hoisting wire 7 so as not to loosen. Thus, the hoisting carriage 10 loaded with the material S is guided by the guide rails 21 as shown in FIG.
Rises along. Next, when the hoisting carriage 10 reaches the top of the building as shown in FIG. 6, first, the fixing jig 16 is opened to separate the material S from the hoisting carriage 10, and the material S is a crane.
Installed in place by 30. In addition, at this time, the receiving stand 13
Can also be raised above the handrails of the building, and the material S can be directly taken in by a forklift or the like on the work floor of the building (see FIG. 7).

At this time, as already described in FIG. 8, the lifting cart 10 is stopped by the stopper 18 at the outer wall 20 at that position.
It is also possible to fix it to. When the loading and unloading of the material S is completed, the bogie suspension wire 7 of the lifting machine 40 is loosened, the hoisting carriage 10 is lowered along the outer wall 20, and returned to the ground, so that the suspended load (material) can be lifted again. To do.

〔The invention's effect〕

As described above, according to the present invention, a suspended load (material)
Since it is lifted along the guide rails of the building integrally with the lifting truck, there is no slanting of the suspended load or sideways shake due to wind pressure, so safe and stable lifting work can be performed.
Therefore, it is possible to work even if there is almost no room on the site, so it is possible to use a small tower crane with a small reach, and it is possible to greatly improve workability and economic efficiency. .

[Brief description of drawings]

FIG. 1 is a plan view showing an engagement relationship between a hoist truck and a building outer wall in an embodiment of the present invention, FIG. 2 is an elevation view thereof, and a third view.
The figure shows a side view of a suspended load placed on a hoisting truck on the ground, and FIG. 4 is a side view showing a state in which the suspended load in FIG. 3 is fixed and a material suspension wire is hooked on the suspended load, and FIG. Is a side view showing a state where the hoisting truck is hoisted along the wall surface, FIG. 6 is a view showing a state where the hoisting truck is hoisted to the top of the building, and the suspended load is released from the load receiving platform, and FIG. The figure which shows the state in which the platform is lifted higher than the top of the building and the suspended load is taken in by the forklift. Fig. 8 is an explanatory diagram of operating the stopper provided on the lifting platform in the guide rail groove. Fig. 9 is the present invention. 10 is a front view, FIG. 10 (b) is a side view of the same, and FIG. 11 is a side view thereof. Is an explanatory view of the operation of the embodiment of
The figure (a) shows the suspended load (material) on a temporary receiving stand, and the same figure (b) is a side view at the time of moving a lifting truck to a temporary receiving stand,
The figure (c) is a diagram showing a state in which the suspended load is loaded on the lifting type load receiving platform of the lifting truck, and the diagram (d) is a diagram showing a state in which the suspended load in the same figure (c) is fixed to the load receiving stage. FIG. 12 is an overall conceptual diagram of the lifting device in the conventional example. 10 …… Lifting cart, 13 …… Loading cradle, 13A …… Elevating loading cradle, 15 …… Guide wheel, 18 …… Stopper device, 19 …… Moving wheel, 20 …… Building outer wall, 21 …… Guide rail ,twenty five……
Temporary cradle, 30 …… tower crane, 40 …… dolly hoist.

Claims (5)

(57) [Claims] 1. A hoisting truck having guide wheels engaged with a guide rail provided on an outer wall of a building, and a hoisting truck provided with a hoisting load fixing jig on a cargo receiving table, and hoisting the hoisting truck along the guide rails. A construction material lifting device that consists of a dolly hoist and a tower crane that lifts suspended loads. 2. The construction according to claim 1, wherein the hoisting trolley has a cradle capable of raising only the hung load from the tentative cradle when the hoisting load is loaded, and a wheel for ground movement at the lower part of the hoisting trolley. Material lifting device. 3. The construction material hoisting device according to claim 1 or 2, wherein the hoisting carriage has a stopper device capable of holding a stop position at a required height of the building in a state of being engaged with a guide rail of an outer wall of the building. . 4. After placing and fixing a suspended load on a lifting carriage that can be raised and lowered along a guide rail provided on an outer wall of a building,
The tower crane and the hoisting machine that hoist the suspended load are operated to simultaneously lift the suspended cart and the suspended load, and when the top of the construction is reached, the suspended load fixed on the suspended cart is released and the suspended cart is lifted. A method for hoisting construction materials, comprising moving from above and then lowering only the hoisting carriage along the guide rails to make the hoisting load hoistable again. 5. When the weight of the hoisted load is within the hoisting capacity of the hoisting machine, the hoisting machine loaded with the hoisting machine is hoisted to the top of the building without using a tower crane. 4. The method for hoisting building materials according to claim 4.