JPH11116043A - Simplified transfer device for construction material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the vibration of materials lifted by a lifter when transferred into a building body and to smoothly transfer the materials moved over blockages including a wainscot without requiring great force to move the materials. SOLUTION: A pair of cargo handling forks 18, 18 provided at a mutual space on the upper face of a platform 16 for materials 14 placed to be lifted by a lifter to carry the materials 14 expanded toward a building body 12 in a horizontal direction and placed to be moved over a wainscot 12a, a table lifter 20 located between a pair of forks 18, 18 in the expanded condition to be movable up and down to a higher place than at least the cargo handling forks 18, 18 to receive the materials 14 placed on the cargo handling forks 18, 18 and a pair of carriages 22, 22 arranged at both sides of the table lifter 20 to transfer the materials 14 placed with the table lifter 20 moved down are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used when a construction material lifted by a lifting device outside a building skeleton is carried into the building from an opening of the building skeleton. The present invention relates to a simple transfer device for construction materials that can be easily carried in when there is an obstacle such as a lumbar wall.

[0002]

2. Description of the Related Art When a multi-story building is constructed, at the stage when an opening for mounting a window or an entrance is formed, interior materials are carried into each floor of the building frame to finish the interior. . When carrying in the material, the material is lifted from the ground by a lifting device such as a construction elevator or a crane, and is transferred into the building from the opening provided on each floor. In this case, the loading platform of the lifting device on which the materials are placed,
When the floor of the building frame to be transferred is flush with the floor, for example, Japanese Utility Model Laid-Open No. 5-62338 (Int. Cl.B60)
Materials can be transferred into the building frame using the unloading device disclosed in P 1/00).

However, when a material is to be taken in through a window opening, there is a waist wall below the opening, so that the material must be taken in through the waist wall. For this reason, the above-mentioned loading and unloading device cannot be used, and it is inevitably necessary to take in the building skeleton by a worker. As described above, it takes time to manually load materials, and during that time, it is necessary to stop the lifting device at the loading floor, so that the operation efficiency of the lifting device is significantly deteriorated.

Therefore, an apparatus capable of transferring materials even when a lumbar wall is present has been proposed by Japanese Patent Application Laid-Open No. 5-162939 (Int. Cl. B66F 7/08). This transfer device is a roller conveyor in which a liftable table lifter is arranged inside a waist wall, and a material loaded on a lifting lifter transfer device as a lifting device is placed at a lift port across the waist wall. Through the table lifter.

[0005]

However, in such a conventional transfer apparatus for transferring materials into a building frame over a waist wall, a roller disposed between a lifting lifter and a table lifter is known. Roller conveyors are provided not only on the conveyor but also on the upper surface of the transfer device of the lifting lifter and the upper surface of the table lifter, and the materials and pallets are moved on these roller conveyors.
However, when the material and the pallet move on the roller conveyor in this way, the moving material and the pallet are vibrated up and down by the uneven portions formed between the rollers of the roller conveyor, and the transfer device and the waist wall are moved. There are gaps and steps at the joints between the roller conveyor that straddles and between the roller conveyor and the table lifter. When the pallet passes through this joint, large vibrations occur, and the load on the pallet is unloaded. There is a risk of collapse. Also,
As described above, a large pressing force is required to move the pallet through the concavo-convex portion of the roller conveyor and the gap or the step portion of the joining portion. Therefore, in order to transfer the load on the pallet from the lifting lifter to the table lifter, a plurality of workers are required to move the load with a large pushing force while supporting the load from both sides so as not to collapse.
There is a problem that it is difficult to achieve labor saving, which is a trend in recent years, and that the scaffolding is poor. In addition, the table lifter itself was heavy, and it was troublesome to carry it in and out of construction elevators when moving on each floor.

In view of the above, the present invention has been made in consideration of the above-described problems, and prevents vibrations from being generated in a material lifted by a lifting device while transferring the material into a building body. It is an object of the present invention to provide a simple transfer device for construction materials capable of smoothly transferring materials over obstacles such as a lumbar wall without requiring a large pushing force for moving the materials.

[0007]

In order to achieve the above object, the present invention provides a simple construction material transferring apparatus according to the present invention, in which an opening for receiving a material has a waist wall or the like which is higher than a floor surface. In the simple transfer device of construction materials used when carrying the material lifted by the lifting device outside the building frame into the building frame provided with the obstacle part, A pair of delivery forks that are provided at a distance from each other and that are loaded and stretched in the horizontal direction over the obstacle, and are located between the pair of delivery forks in an extended state, A table lifter capable of moving up and down at least to a position higher than the delivery fork and receiving a material on the delivery fork.

According to a second aspect of the present invention, there is provided an apparatus for easily transferring construction materials, wherein an opening for receiving the materials is provided with an obstacle such as a waist wall higher than the floor surface. On the other hand, in a simple transfer device for construction materials used when carrying materials lifted by a lifting device outside the building frame,
A pair of forks provided on the loading platform of the lifting device at an interval from each other and extending and retracting in the horizontal direction to transport the loaded material over the obstacle, and the pair of unloading forks in an extended state A table lifter that is located between the forks and that can be raised and lowered at least to a position higher than the delivery fork, and receives a material on the delivery fork; a pair of table lifters arranged on both sides of the table lifter; And a carriage on which the placed material is transferred.

The operation of the present invention will be described below with respect to each claim according to the above construction. In the simple construction material transfer device according to the first aspect, the material is transferred to a pair of delivery forks attached to the loading platform of the lifting device. It is placed and lifted to a position above the obstacle portion of the opening into which the material is to be carried in, and the delivery fork is extended in this state, so that the material placed on the material passes over the obstacle portion. It can be carried into the building through the opening. Then, a table lifter in a lowered state is located between the pair of delivery forks, and the table lifter is raised above the delivery fork, so that the material placed on the delivery fork is transferred to the table lifter. After the material is transferred to the table lifter in this way, the delivery fork is shortened and stored in the carrier, so that the table lifter can be lowered together with the material without the delivery fork becoming an obstacle.

As described above, when the material lifted by the lifting device is taken over the obstacle and taken into the building body, the material is placed on the pair of delivery forks, and the delivery fork is removed from the carrier. By extending in the horizontal direction, this material can be smoothly carried into the building body without accompanying the movement of the material itself. The material carried into the building body together with the delivery fork can be smoothly transferred to the table lifter without moving the material itself by lifting the table lifter located between the pair of delivery forks. it can. For this reason, a series of operations of transferring the material lifted by the lifting device over the obstacle and transferring it into the building body can be performed under the supervision of one worker, and the material itself is moved. Since there is no need, there is no need to worry about collapse of the load and heavy work of the operator, and safety can be improved.

According to the second aspect of the present invention, the construction material is easily transferred from the lifting device to the building body by the pair of delivery forks and transferred to the table lifter. The material can be transferred to a pair of trolleys arranged on both sides of the table lifter by descending the table lifter. Then, by moving the cart with the material transferred, the material can be easily transported to the target position. As described above, even when the material is transferred from the table lifter to the carriage, there is no need to move the material itself, so that there is no need to worry about collapse of the load. Therefore, a series of operations of transferring the material from the lifting device to the carriage via the table lifter can be performed with high safety while saving labor.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 3 show an embodiment of a simple transfer device for construction materials according to the present invention, FIG. 1 is a plan view showing the simple transfer device, FIG.
FIG. 4 is an explanatory diagram showing the operation of the simple transfer device in order.

That is, the simple transfer device 10 of the present embodiment
As shown in FIGS. 1 and 2, the material 14 is carried in from an opening 12 b for a window in which a waist wall 12 a is formed as an obstacle portion of the building frame 12.
It is used when carrying in the material 14 lifted from an external lifting device, and when unloading as needed.

The basic structure of the simple transfer device 10 is as follows. A pair of the simple transfer devices 10 are provided on an upper surface of a loading platform 16 on which a material 14 to be lifted by a lifting device is placed at a distance from each other. The material 14 stretched and placed on the waist wall 1
Delivery forks 18, 18 that carry over 2a
Is located between the pair of delivery forks 18 in the extended state, and can be raised and lowered at least to a position higher than the delivery forks 18, 18 to receive the material 14 placed on the delivery forks 18. Table lifter 20
And carts 22, 22 which are arranged in pairs on both sides of the table lifter 20, and on which the material 14 placed is moved by the lowering of the table lifter 20.

The loading platform 16 is lifted and lowered by an elevator (not shown) as the lifting device, and is stopped at the destination floor of the building frame 12 where the material 14 is to be loaded and unloaded. Waist wall 1 of part 12b
2a is set so as to be stopped above the upper end by a predetermined height h1. This height h1 is equal to the delivery fork 1
It is determined in consideration of the amount of flexure caused by the weight of the material 14 when the elongates 8, 18. In addition, a crane can be used as the lifting device. In such a case, the loading platform 16 is fixed to the building frame 12 or a scaffold (not shown) and used as a loading / unloading platform.

The delivery forks 18, 18 are mounted on the carrier 16 via telescopic arms 24, 24 arranged corresponding to each other.
The material 14 is placed on the delivery forks 18, 18 in a state where the telescopic arms 24 are shortened, that is, stored in the carrier 16, but the material 14 is used to prevent collapse of the load. It is placed with weight balance on the left and right. The telescopic arm 24,
Reference numeral 24 denotes a structure which is driven to expand and contract via an actuator (not shown) such as a hydraulic cylinder or a jack.

The table lifter 20 includes a substrate 26 placed on the floor 12c and a top plate 28 on which the material 14 is placed. A cross support 30 which is arranged in a shape and can be freely opened and closed is provided,
The top plate 28 can be moved up and down with the opening and closing of the cross support 30. At this time, the range of the height change of the top plate 28 is set so that the upper limit is higher than the delivery forks 18, and the lower limit is lower than the carriage 22. The cross support 30 is driven using an actuator (not shown) such as a hydraulic cylinder or a jack, and has a structure capable of sufficiently withstanding the load of the heavy material 14. Further, a pair of the cross struts 30 are provided on the left and right (in the direction perpendicular to the paper surface in the figure) so that the top plate 28 can be stably moved up and down.

The carriage 22 can be an ordinary one having casters 32 provided at the four corners, can sufficiently withstand the load of the material 14 to be placed, and has a height h2 of the table lifter. What is necessary is just to be higher than the lowest position of the top plate 28 of No. 20.

In the simple transfer device 10, the material 14 is taken into the building frame 12 with the operations shown in FIGS. 3A to 3E. The operation will be described below in order.

(A) The material 14 lifted by the lifting device is placed on the delivery forks 18, 18 stored in the loading platform 16, and the loading platform 16 is in the opening 12 b of the building frame 12. At a height h1 above the upper end of the waist wall 12a.

(B) Next, using the telescopic arm 24, the delivery forks 18, 18 together with the material 14 placed thereon are extended from the opening 12b over the waist wall 12a and extended into the building frame 12. Of course, at this time, the amount of extension of the telescopic arm 24 depends on whether the material 14
It is set so that it is completely located inside a.

(C) Next, the pair of delivery forks 1
The table lifter 20 is inserted between the transfer forks 18 and 18, and the top plate 28 is raised above the delivery forks 18 and 18 by h3. As a result, the material 14 is transferred to the top plate 28,
The central portion of the material 14 is supported by the table lifter 20.

(D) Next, with the top plate 28 raised, the telescopic arm 24 is shortened, and the delivery forks 18, 18 are stored in the carrier 16.

(E) Next, after a pair of trucks 22, 22 are arranged on both left and right sides of the table lifter 20 (see FIG. 1), the table lifter 20 is lowered so as to be lower than the trucks 22, 22. As a result, the material 14 becomes the carriage 22,
22 and both ends of the material 14 are trolleys 22 and 2
2 supported.

In this way, the materials 14 are transported to the carts 22, 22.
By pressing the material 14 in this state, the material 14 can be freely moved together with the carts 22 and 22, and the material 14 can be transported to a target position on the floor surface 12c.

Therefore, in the construction material simple transfer device 10 of the present embodiment, when the material 14 lifted by the lifting device is taken into the building frame 12 from the opening 12b over the waist wall 12a. A pair of delivery forks 18,1
8, the delivery forks 18, 18 are loaded via the telescopic arm 24 with the material 14 placed on the loading platform 16.
From the material 14 to the building frame 12 in the horizontal direction, without moving the material 14 itself.
Can be smoothly carried into the building frame 12. And, together with the delivery forks 18, 18, the building frame 12
The material 14 carried into the inside is a pair of delivery forks 1
The user moves on by raising the table lifter 20 located between 8, 18. Also in this case, the material 14
It is possible to smoothly transfer to the table lifter 20 without involving its own movement.

The material 14 transferred to the table lifter 20 can be transferred to a pair of carriages 22 arranged on both sides of the table lifter 20 by descending the table lifter 20. And the carts 22 and 2 together with the material 14
By moving 2, the material 14 can be easily transported to a target position on the floor surface 12c.

As described above, the material 14 lifted by the lifting device
Are transferred to the table lifter 20 in the building frame 12 over the waist wall 12a and are transferred from the table lifter 20 to the trolleys 22, 22 under the supervision of one worker. Therefore, labor saving can be achieved. Further, since there is no need to move the material 14 itself, it is possible to eliminate the worry of collapse of the load and the heavy work of the operator, so that this transfer operation can be performed quickly while ensuring safety, and In addition, the operating rate of the lifting device can be significantly improved.

The delivery fork 18 is expanded and contracted via the telescopic arm 24. As the expansion and contraction mechanism, a commonly used expansion and contraction mechanism, for example, a pantograph link mechanism or a screw mechanism may be used. In addition, a general lifting mechanism, for example, a telescopic support or a screw mechanism can be used for the cross support 30 that moves up and down the table lifter 20. Although the delivery forks 18, 18 have been described as having left and right parts separated from each other, the present invention is not limited to this, and it is sufficient that a cutout into which the top plate 28 of the table lifter 20 is inserted is formed. However, a U-shaped member separated into two branches may be used.

Also, as shown in FIGS. 4 and 5, when an existing temporary machine is used for the lifting machine, the structure of the temporary machine withstands the moment caused by the material being thrown out into the building frame 12. It may not be possible. If such a situation is a concern, a support jig 34 for receiving the delivery forks 18, 18 is installed on the waist wall 12 a, and a moment force acting on the temporary machine is applied to the jigs 34, 3.
By receiving and reducing in step 4, the existing temporary machine can be used as it is without the need to modify or reinforce it.

[0031]

As described above, in the construction material simple transfer apparatus according to the first aspect of the present invention, a pair of extensible delivery forks is provided on the loading platform of the lifting device, and this delivery is performed. By placing the material on the fork and extending it, the material placed on the fork is transported over the obstacle from the opening of the building frame, and the table is located between the pair of extended delivery forks. A lifter is installed and raised above the delivery fork, so that the material placed on the delivery fork is transferred to this table lifter, so that this material can be smoothed without moving the material itself. Can be brought into the building.
Therefore, a series of operations of transferring the material lifted by the lifting device over the obstacle and transferring it into the building can be performed under the supervision of one worker, and the material itself needs to be moved. Since there is no load, there is no need to worry about collapse of the load and labor of the operator, and the transfer operation can be performed quickly while improving safety, and the operation rate of the lifting device can be improved.

According to a second aspect of the present invention, there is provided a simplified transfer system for construction materials, wherein the pair of delivery forks according to the first aspect transfers the materials from the loading platform of the lifting device into the building body.
Then, the material carried into the building body is transferred to the table lifter, and in the present invention, the material transferred to the table lifter is arranged on both sides of the table lifter by lowering the table lifter. The vehicle is transferred to a pair of carts, and the material is transported to the target position together with the carts. Therefore, even when the material is transferred from the table lifter to the trolley as described above, there is no need to move the material itself, so that there is no need to worry about collapse of the load, and the material is transferred from the pallet of the lifting device to the trolley via the table lifter. For a series of operations of transferring to a vehicle, there is an excellent effect that safety can be ensured while saving labor and the operation efficiency of the lifting device can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a simple transfer device according to an embodiment of the present invention.

FIG. 2 is a side view of the simple transfer device showing one embodiment of the present invention.

FIG. 3 shows the operation of the simple transfer device according to the embodiment of the present invention.
It is explanatory drawing shown in order.

FIG. 4 is a plan view showing a case where a jig for reducing moment is installed in the simple transfer device of FIG. 1;

FIG. 5 is a view taken along line AA of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Simple transfer apparatus 12 Building frame 12a Waist wall 12b Opening 12c Floor surface 14 Material 16 Luggage 18 Delivery fork 20 Table lifter 22 Cart 34 Jig

Continued on the front page (72) Inventor Yutaro Omote 4-640 Shimoseito, Kiyose-shi, Tokyo Inside Obayashi Technical Research Institute

Claims (2)

[Claims] 1. A material lifted by a lifting device outside a building body inside a building body provided with an obstacle such as a waist wall higher than the floor at an opening for receiving the material. In a simple transfer device for construction materials used when carrying in, a pair of materials is provided on the loading platform of the lifting device at an interval from each other, and the material placed in the horizontal direction is stretched over the obstacle portion. A delivery fork to be carried in, located between the pair of delivery forks in an extended state,
A simple transfer device for construction material, comprising: a table lifter that can move up and down at least to a position higher than the delivery fork and receives a material on the delivery fork. 2. A material lifted by a lifting device outside the building body inside a building body provided with an obstacle such as a waist wall higher than the floor at an opening for receiving the material. In a simple transfer device for construction materials used when carrying in, a pair of materials is provided on the loading platform of the lifting device at an interval from each other, and the material placed in the horizontal direction is stretched over the obstacle portion. A delivery fork to be carried in, located between the pair of delivery forks in an extended state,
At least a table lifter that can move up and down to a position higher than the delivery fork and receives a material on the delivery fork, and a pair of the material placed on both sides of the table lifter and placed on the table lifter by lowering the table lifter, A simple transfer device for construction materials, comprising: a carriage to be transferred.