JP3049406B2 - Handling device and building method using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handling device used for transporting long objects in a closed space where construction of a basement floor or the like is advanced by a reverse hitting method, and a method of constructing a skeleton using the same. is there.

[0002]

2. Description of the Related Art Conventionally, a reverse striking method adopted from the viewpoint of shortening the construction period is to excavate under an existing slab to a certain extent, and then construct a permanent beam on a pillar (having been driven first). The slab is being constructed, and after the skeleton that can withstand the earth pressure is constructed in this way, excavation work will be performed again, and excavation and framing construction will proceed in all weather, using the upper slab as a roof Could be done.

[0003]

However, the construction of the skeleton by the reverse construction method has the above-mentioned advantages, but because the upper part of the construction site is closed, the construction material (beam steel material, The horizontal transfer and the mounting work of the mold material, etc.) have various problems as compared with the continuous driving method. Especially when handling long members such as steel beams, half PC beams, unitized formwork and reinforcing bars in the construction work of the underground skeleton, mobile crane and forklift are used for construction. Such problems have been pointed out.

[0004] That is, since it is necessary to transport the long member between the pillars that have been driven in advance, it requires human labor to transport the long member, and a great deal of time is required for safety measures for the work. Is required. In addition, since the upper part of the construction part is closed, the crane's allowance cannot be removed, and as a result, it is extremely difficult to attach beams, especially slanted beams, using a uniform car or hanging it together. . Furthermore, the heavy equipment to be handled during the operation is so high that it cannot pass below the existing beam, so it is necessary to perform construction while escaping from the back (that is, finish the construction from the farthest part). Therefore, there was a problem that the construction procedure was limited, or that secondary industrialized members such as reinforcing bars and formwork units and a construction method using them could not be adopted.

[0005] On the other hand, the flooring position at the time of excavation of the ground is below the beam mounting position on the next floor, but it is advantageous to be as close to those positions as possible. Actually 300-2000
mm, and when it is larger than that, it is necessary to separately install a temporary cutting beam. However,
At the currently used distance between the beam mounting position on the next floor and the flooring position, the transport of the long member is very complicated and requires a great deal of labor.

In view of the above-mentioned circumstances, the present invention has been made in view of the above circumstances, and when constructing a skeleton in a closed space using a reverse hitting method, a long member such as a steel beam or a PC beam is reduced in height without requiring any manual operation. To be transported by
The purpose is to enable efficient construction work.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described problems, and has a traveling body, an upper pedestal rotatably provided above the traveling body, and an upright erected on the upper pedestal. A horizontal table supported by a link mechanism attached to each of a pair of arm brackets facing each other with an interval capable of dropping a long member and capable of ascending and descending while maintaining a fixed angle, and It is an object of the present invention to solve the above-mentioned problem by providing a handling device characterized by comprising a gripping device which is rotatable with respect to the front and rear directions and is provided to support a long member.

In another invention, when excavating the ground step by step under an upper floor slab and constructing a skeleton in a closed space, a beam material, a frame material, and the like to be put into the excavated working space are provided. A loading step of loading the building material on the handling device, a transporting step in which the handling device loaded with the building material moves to a predetermined location in a work space, and an installation step of positioning the building material at a predetermined position by the handling device. A construction method of a skeleton using a handling device, characterized by repeatedly constructing a framing portion of the skeleton made of the structuring material between predetermined positions. This construction method solves the above-mentioned problems.

[0009]

According to the present invention, the handling device supports the building materials (primary members such as steel beams, and secondary members such as PC formwork, unitized formwork and reinforcing bars) in a low position. After being conveyed and reaching a predetermined location, the gripping device portion is raised and turned and rotated to position the building material at a predetermined position. By attaching the building material supported by the handling device in this manner, a frame part of the skeleton, for example, a main beam provided between columns previously driven and a diagonal beam provided on the outer wall side are constructed. Become so.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail with reference to the embodiments shown in FIGS. FIGS. 1 to 3 show a handling device 1, which includes a traveling body 2 having a self-propelled mechanism such as a crawler, an upper gantry 3 rotatably provided on an upper portion thereof, and an upper gantry 3. And a gripping device 6 provided rotatably with respect to the horizontal table 5 and rotatable in the front-rear direction. .

The upper frame 3 of the handling device 1
, A pair of arm brackets 7 that stand facing each other with an interval capable of dropping a long building material such as a steel beam or a formwork material are provided upright. The link mechanism 4 made of, for example, an arm member is attached to each of the arm brackets 7 so as to be rotatable in the vertical direction, and the horizontal table 5 is attached so as to extend between the distal ends thereof. By the movement of the link mechanism 4, the horizontal table 5 can be moved up and down while maintaining a state of being parallel to the reference plane of the handling apparatus 1 (that is, maintaining a state of being parallel to the traveling roadbed of the handling apparatus). It is provided in.

The horizontal table 5 is provided with an undulating device 8, a tilt pin 9, a turntable 10, and the gripping device 6. The gripping device 6 and the turntable 10 are tilted with the operation of the undulating device 8. It is provided so as to rotate around the pin 9. The gripping device 6 is rotatably supported by the turntable 10 and is provided so that the direction of the building material supported by the gripping device 6 can be changed. That is,
As shown in FIGS. 1 to 3, when the handling apparatus 1 travels, the building material A is transported while being supported at a low position arranged between the arm brackets 7, and is horizontally moved below the mounting position. The position of the building material A is determined according to the mounting position by raising the table 5, rotating by the raising and lowering device 8, and rotating by the turntable 10. In this way, the building material A supported by the handling device 1 can be erected by bolting, welding, or the like to the existing portion side, and while transporting and positioning various types of structuring materials by the same method, the frame portion (beam portion, etc.) ) Is being constructed.

In consideration of the positioning workability when a long building material such as a steel beam or a PC beam is attached to a column (existing), a portion of the gripping device and the horizontal table are taken into consideration. In addition, it is possible to incorporate a plane moving mechanism and a swinging device that enables rotation about each rotation center axis. As shown in the figure, the handling device 1 has a drive source 11 mounted thereon, but this drive source may be provided separately, and the traveling body 2 may be a crawler type, a wheel type, or an air type according to the condition of the traveling roadbed. An air bearing type using a film can also be used.

The construction of the frame structure using the above-described handling device 1 is performed as follows. First, as shown in FIG. 4, a loading opening B for charging a building material from above is opened on the upper floor side. The construction material A lowered from the opening B is mounted on and supported by the handling device 1 which is waiting at the lower portion. For example, while supporting the building material A in the low position, the handling device 1 is moved below the mounting position through an arbitrary path through the columns, and after reaching, the building material A is lifted. Then, the construction material A is rotated while maintaining a certain height, and the axis to be attached is roughly adjusted to the axis of the construction material A. After that, each part of the handling device 1 is operated to the mounting position to install and position the building material A.

A frame part can be constructed by fixing the building material A thus positioned, and various construction materials can be carried in by the handling device 1 and attached by the structure of the frame part. become able to. In other words, not only primary members such as steel beams but also secondary members such as formwork can be attached, and since the carrying posture is low, large formwork etc. can be installed under the installed beam. It is transported while passing safely (see FIG. 5), and each frame is similarly constructed.

FIGS. 6 and 7 show an example of handling for placing various construction materials at predetermined positions using the above-mentioned handling apparatus 1. FIG. In (a), the lower end of the steel beam C is supported, rises near the erection position, and then moves laterally to be attached. In the figure, △ indicates a support point, and an arrow indicates a movement path. ing. Less than,
(B) is the reinforcing bar set D, (c) is the PC formwork E, (d) is the PC
F in which a formwork and a reinforcing bar set are set, (E) shows a case of a unit formwork G, (F) shows a case of a cut beam or a belly, and (G) shows a case of a diagonal beam. In the case of the oblique beam I, it is shown that the ascending and rotating are performed near the mounting position. In particular, when constructing a diagonal beam, the construction material A is transported to a position immediately below the mounting position, and is mounted at a predetermined angle from below (see FIGS. 7 (g) and 8). In this way, the positioning of the diagonal beams can be easily performed without the use of a leveling wheel or hanging, and the frame work such as connection to the beam side at one end and connection to the wall side at the other end becomes extremely easy ( (FIG. 8).

[0017]

As described above, according to the present invention,
The handling device includes a traveling body, an upper pedestal provided rotatably above the traveling body, and a pair of arm brackets that are erected on the upper pedestal and face each other at an interval capable of dropping a long member. A horizontal table supported by the attached link mechanism body and provided so as to be able to move up and down while maintaining a fixed angle, and a long member rotatably provided with respect to the horizontal table and provided rotatably in the front-rear direction. And a holding device for supporting. Thereby, it is possible to match or shift the longitudinal direction of the long construction material and the traveling direction of the handling device during the carrying-in movement, and it is possible to safely and efficiently pass between the pillars and narrow portions. . In addition, since the building material can be dropped between the arm brackets, the carrying posture can be suppressed low with the building material loaded, although the reaching height in the gripping state can be made large. When the construction material is dropped between the arm brackets, the center of gravity of the construction material approaches the vicinity of the center of the device, and thus the stability of the device is easily ensured. Further, since the construction material is located on the horizontal table between the pair of link mechanisms, no torsional load is applied, and the weight of the handling device, especially each structural portion on the traveling body, can be reduced. In addition, in the case of an oblique frame part such as a diagonal beam, the member can be positioned obliquely at the frame position, so that one end is connected to the beam side and the other end is connected to the wall side. It is easy and can be easily constructed.

Further, another invention is to excavate the ground step by step under the upper floor slab and construct a skeleton in a closed space. A loading step of loading the building material on the handling device, a transporting step in which the handling device loaded with the building material moves to a predetermined location in a work space, and an installation step of positioning the building material at a predetermined position by the handling device. It is characterized by repeatedly constructing a frame portion of a skeleton made of the building material between predetermined positions. In this way, steel beams and formwork (secondary members) can be erected while maintaining the flooring depth that has been conventionally used, so that labor for constructing the frame can be greatly reduced. Become. Furthermore, since the handling and transport of construction materials are performed using a handling device, industrialization of construction materials used in enclosed spaces (for example, semi-finished construction materials in factories, etc.) can be promoted, and practical use is possible. It has an excellent effect.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a side view of an embodiment of a handling device according to the present invention.

FIG. 2 is an explanatory view showing the upper surface of one embodiment.

FIG. 3 is an explanatory view showing a rear surface in the same manner.

FIG. 4 is an explanatory diagram showing a transport path using a handling device.

FIG. 5 is an explanatory diagram showing a transport state of a building material.

FIG. 6 is an explanatory view showing attachment of various construction materials.

FIG. 7 is an explanatory view showing attachment of various construction materials.

FIG. 8 is an explanatory diagram showing an attached state of a diagonal beam.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Handling device 2 ... Running body 3 ... Upper gantry 4 ... Link mechanism 5 ... Horizontal table 6 ... Grasping device 7 ... Arm bracket 8 ... Undulating device 9 ... Tilt pin 10 ... Turntable A ... Construction material

Continued on the front page (72) Inventor Kazuo Moroi 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation (72) Inventor Norihiro Nishida 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation In-company (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 21/16 B66F 9/065

Claims (2)

(57) [Claims] A traveling body, an upper pedestal provided rotatably above the traveling body, and a pair of arm brackets erected on the upper pedestal and facing each other with an interval capable of dropping a long member. A horizontal table supported by a link mechanism attached to the table and capable of ascending and descending while maintaining a certain angle; and A handling device comprising: a holding device that supports a member. 2. A method for constructing a skeleton in an enclosed space by excavating the ground step by step under an upper floor slab, wherein the building material such as a beam or a frame material to be put into the excavated working space is claimed. a loading step of mounting the handling device claim 1, a transport step in which the building material the handling device equipped with is moved to a predetermined position of the work space, and a mounting step of the handling device positions the build material to a predetermined position A method of constructing a skeleton using a handling device, wherein a framing portion of the skeleton made of the structuring material is repeatedly constructed between predetermined positions.