JPS6138068A - Method and apparatus for opening large panel for building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] a9 Purpose of the Invention (Field of Industrial Application) The method and device for unpacking large panels for buildings according to the present invention are suitable for unpacking assembled steel frames when constructing a building, etc. It is used to unpack large panels such as curtain walls that have been lifted in groups by a tower crane and transport them one by one to a designated location.

(Prior art) When constructing a large structure such as a building using the curtain wall construction method, the steel frame that makes up the framework of the building and the curtain wall that makes up the wall surface are lifted by a tower crane that rises as the building progresses. ing. That is, as shown in Fig. 6, after assembling the steel frame 2.2 lifted by the tower crane 1, floor panels (not shown) are installed on each floor, and then a curtain wall 3.3 is installed around the building as a lower layer. They are pasted in order.

The work of pasting up curtain walls is done using a tower crane.
Lifting curtain walls one by one and assembling them to the steel frame will reduce work efficiency, so after lifting multiple curtain walls at once and transferring them onto the floor panel attached to the steel frame, the curtain walls are assembled one by one on the floor panel. They are unpacked onto the curtain wall and then assembled onto the steel frame. That is, when constructing a high-rise building, it takes a considerable amount of time to move the hook of a tower crane back and forth between the ground and the part where the curtain walls are assembled, so it is necessary to install multiple curtain walls 3.3 from the ground. It is lifted in one go, reducing the number of times the crane has to go up and down. For this reason, on the floor where the curtain wall 3.3 is to be assembled, a work scaffold 4 is installed that extends outward, and the platform is designed to allow the multiple curtain walls 3.3 lifted by the tower crane 1 to be removed. ing. Multiple curtain walls 3.3 lifted up by tower crane l and lowered onto work scaffolding 4
Since it is placed on a cart 5 having wheels for movement, it can be easily moved onto the floor panel by pushing and pulling the cart 5.

The plurality of curtain walls 3.3, which have been moved together with the trolley 5 onto the floor panel, are untied from the wires tied to the trolley 5.
Unpacking is performed to separate each piece and move it to the designated location where it will be assembled onto the steel frame.

Conventionally, such unpacking work has been carried out mainly by hand while also using a portable crane.

(Problem to be solved by the invention) However, in recent years, the ceiling height of buildings has tended to become lower.
Since there are many situations where it is difficult to use machines such as porta-pull cranes, most of the above-mentioned unpacking work has to be done manually. However, because large panels such as curtain walls are heavy, unpacking them manually is difficult and dangerous.

In view of these circumstances, the present invention provides an unpacking method and an unpacking device that can easily and safely unpack large panels for buildings, such as tensile walls and the like, which are heavy.

b. Structure of the Invention (Means for Solving the Problem) The method of unpacking a large panel for a building according to the present invention is to slightly lift one of the large panels placed on a cart, and then move the cart to the large panel. After removing it from below, rotate the large panel 90 degrees to make it horizontal, attach a moving device with wheels for moving to the four corners of this large panel, and then lower the large panel while keeping it horizontal. The wheels of the moving device are grounded, and the wheels are moved to move each large panel to a predetermined location.

In addition, the unpacking device for large panels for buildings is equipped with an elevating plate that can be raised and lowered by a drive mechanism along a column set up on a movable trolley, and one end of a gripping arm is rotatably attached to the elevating plate. A set of two rotary lifts each includes a hanging arm at one end and a restraining arm at the other end.

(Example) Next, the present invention will be explained in more detail by explaining the illustrated embodiment.

1 to 4 sequentially show the state in which a plurality of curtain walls placed on a trolley are unpacked one by one by the unpacking apparatus for large panels for buildings according to the present invention.

The rotary lifting tools 6, which are a set of two and constitute an unpacking device, are
A gate-shaped support 9 is erected on the upper surface of a U-shaped cart 8 with wheels 7.7 for movement provided at the four corners. One end of the cable 11 wound around a pulley 10 provided on the top surface of this support 9 is wound around a winding machine 12 such as a winch, and the other end is connected to the upper end of a lifting plate 13 provided along the support 9 so as to be movable up and down. are doing. Further, the intermediate portion of the gripping arm 15 is fixed to a disc 14 which is rotatably mounted on the elevating plate 13 about a horizontal axis.

A hanging arm 16 is provided at one end of the gripping arm 15, and a restraining arm 17 is provided at the other end thereof, facing in the same direction at right angles to the gripping arm 15. Of both arms 16.17,
A hanging ring 18 is fixed to the distal end of the hanging arm 16 on the surface facing the restraining arm 17. Further, the holding arm 17 is connected to the outer cylinder 17.
A holding plate 17b is slidably inserted inside a.
When the pin 20 is inserted into the small hole 19 made in the side surface of the outer cylinder 17a with the holding plate 17b pulled out, this holding plate 1
7b can be held in a protruding state. Further, as shown in FIG. 5, the disk 14, which fixes the middle part of the gripping arm 15 and is rotatably attached to the elevating plate 13, is provided with two or three points perpendicular to the rotation axis. Small hole 21 at position
(Only one location is shown in Figure 5). A pin 2β, which is inserted through a bracket 22 fixed to the elevating plate 13, can be inserted into this small hole 21.
When inserted into one of the small holes 21, the gripping arm 15 is held in a vertical position, and when inserted into the other small hole, the gripping arm 15 is held in a horizontal position. The pin 23 for holding the gripping arm 15 vertically or horizontally is connected to the eye port 24 fixed to the elevating plate 13 by the chino 25 to prevent it from being lost.

On the other hand, the moving tools 26a and 26b attached to the four corners of the curtain wall 3, which are raised, lowered and rotated by the rotary lifting tool 6.6 constructed as described above, are constructed as shown in FIGS. 2 to 4. . That is, the moving tool 26a fixed to the lower side of the curtain wall 3 has wheels 27.
At the end of the L-shaped base 28 fitted with port 29.
A mounting portion 31 having a U-shaped cross section and having small holes 30 and 30 for inserting the holder 29 is fixed thereto. Further, the moving tool 26b fixed to the upper side of the curtain wall 3 is provided with a mounting part 31 similar to that of the moving tool 26a described above at the end of the base 32 which is approximately T-shaped and has wheels 27 and 27 on the lower surface. ing. In both moving tools 26a and 26b, a screw hole for screwing the eye port 33 is provided at the end of the base portion 28.32 on the side where the attachment portion 31 is provided.

Next, a procedure for unpacking a plurality of curtain walls lifted together with a cart using the unpacking apparatus for large panels for buildings of the present invention configured as described above will be described.

First, the ropes connecting the curtain walls 3.3 to the trolley 5 are removed, and then, as shown in FIG. Move it to both sides of 3. Eye ports 36, through which U-shaped hanging fittings 35 having rings at both ends are inserted, are screwed into screw holes 34, 34 formed at both ends of the upper side of the curtain wall 3. The same port 37 is inserted into the ring of this hanging fitting 35 and the hanging ring 18 at the end of the hanging arm of each rotary lifting device 6, and then this port 37 and the nut 39 are inserted.
are screwed together to connect the hanging arm 16 and the curtain wall 3. Once the hanging arm 16.16 of the re-rotating lifting device 6.6 and the upper side of the curtain wall 3 are connected, the winding machine 12 of the re-rotating lifting device 6.6 is driven, and the cable 11 and the lifting plate 13 are connected. The gripping arm 15 is raised through the gripping arm 15. When the curtain wall 3 is lifted up a little by the lifting of the gripping arm 15, the trolley 5 with the remaining curtain wall 3.3 on it is pulled out from between the re-rotating elevators 6.6 as shown in FIG. , moving tools 26a, 26a are attached to the lower side of the suspended curtain wall 3. In addition, in Fig. 2, 38 is a bracket for fixing the curtain wall 3 to the steel frame 2 (Fig. 6). Fix it.

Fix the bracket 38 to the lower side of the curtain wall 3,
After the moving tools 26a, 26a are attached, the holding arm 15, which had been contracted until then, is extended, and the holding plate 17b pulled out from inside the outer cylinder 17a is inserted between the wheels 27 of the moving tools 26a, 26a and the eye port 33. Next, the pin 23 (FIG. 5) that was holding the gripping arm 15 vertically is removed, and the gripping arm 15 and the curtain wall 3 are rotated 90 degrees as shown in FIG. Once the gripping arm 15 has been rotated in this way, the pin 23 is inserted again to hold the gripping arm 15 in a horizontal state, and the bracket 38 is fixed to the upper side of the curtain wall in the same manner as the lower side described above, and then moved. Tool 26b
, 26b. In this case, the moving tool 26a
, 26b and the bracket 38 can be changed according to the structure of the curtain wall 3, and the direction of rotation when rotating the suspended curtain wall 3 by 90 degrees is also selected according to the shape and structure of the curtain wall 3, etc. .

In this way, the brackets 38 and 38 are fixed to the upper and lower sides of the curtain wall 3, and the moving tools 26a and 28b are attached to the four corners.
is attached, hold the gripping arm 15. of the re-rotating lifting device 6.6.
15 is lowered in a horizontal state, and each moving tool 26a, 2
6bc7) Ground the wheels 27.27. Each moving tool 26
When the wheels 27 and 27 of wheels 27 and 26b touch the ground, the port 37 that connects the hanging ring 18 of the hanging arm 16 to the hanging fitting 35 that is fixed to the eye port 36 attached to the upper side of the curtain wall 3 is removed. Pull it out and separate the pair of rotary lifts from each other. As a result, the curtain wall 3 is supported on the floor by the moving tools 26a and 26b attached to the four corners, as shown in FIG. Therefore, by transferring the wheels 27, 27 of each moving device 26a, 26b,
Large curtain walls can be easily moved on the floor. During unpacking work, remove the eye port 36 and hanging fittings 35 attached to the upper side of the curtain wall 3.
It is used to lower another curtain wall, which is still on the trolley 5, to the floor as shown in FIG.

The curtain wall 3, which has been lowered from the trolley to the floor and moved to a predetermined location in this way, is moved by the moving tools 26b and 2 on the upper side.
It is lifted by hooking the hook of the tower crane 1 onto the wire passed through the eye port 33.33 attached to 6b, and the brackets 38.38 on the upper and lower sides are attached to the steel frame 2. The moving tools 26a and 26b attached to the four corners are removed with bolts after the work and are used for the next unpacking work of the curtain wall.

C8 Effects of the Invention The method and device for unpacking large panels for buildings according to the present invention are configured and operate as described above, so that the unpacking work of heavy large panels can be easily carried out in the construction of buildings with low ceiling heights. This can be done easily and safely on-site, and at the same time, the number of workers can be reduced.

[Brief explanation of the drawing]

1 to 4 are perspective views showing the unpacking work performed using the unpacking device for large panels for buildings according to the present invention in the order of steps, respectively;
FIG. 5 is an enlarged view of part A in FIG. 1, and FIG. 6 is a schematic side view of the construction site. 1: Tower crane, 2: Steel frame, 3: Curtain wall, 4: Work scaffold, 5: Trolley, 6: Rotating lift, 7: Wheel, 8: Trolley, 9: Strut, IO: Pulley, 11: Cable,
12: Winder, 13: Lifting plate, 14: Disc, 15: Gripping arm, 16: Hanging arm, 17: Holding arm, 17a: Outer cylinder, 17
b = holding plate, 18: hanging ring, 19: small hole, 20: bottle,
21: Small hole, 22 Nibracket, 23: Pin, 24: Eye port, 25: Cheno, 26a, 26b: Moving tool, 2
7: Wheel, 28: Base, 29: Porto, 30: Small hole, 3
1: Mounting part, 32: Base, 33: Eye port, 34: Screw hole, 35: Hanging bracket, 36: Eye port, 37: Port, 38 bracket, 39: Nut. Figure 3 Figure 6

Claims (1)

[Claims] 1) After slightly lifting one of the large panels placed on the trolley and removing the trolley from under the large panel, the large panel is rotated 90 degrees to make it horizontal; A method for unpacking a large panel for a building, in which moving tools having wheels for movement are attached to the four corners of the large panel, the large panel is lowered in a horizontal state, and the wheels of each of the moving tools are grounded. 2) An elevating plate that can be raised and lowered by a drive mechanism is installed along a column installed on a movable trolley, and one end of a gripping arm attached to the elevating plate so as to be rotatable at least 90 degrees is connected to the upper side of the large panel. This unpacking device for large panels for buildings is made up of a set of two rotary lifts each having a hanging arm for hoisting the large panel, and a restraining arm for suppressing the lower side of the large panel at the other end.