JPH0649994A - Lifting-up of wall panel - Google Patents

Abstract

PURPOSE:To prevent the breakage of wall panels by the action of lifting device when raising wall panels vertically by a method in which the surface and back sides near the second blind hole of a wall panel are held by a holder. CONSTITUTION:A steel material 14 is inserted into the first blind hole 13 of a wall panel 11 laid down, a lifting part 18 is inserted into the second blind hole 16, and the lifting part 18 is connected with the steel material 14 on the inside of the wall panel 11. The surface and back sides near the hole 16 are held by a holder 20 for taking a damage-preventing measure for panels. The tip of a wire 19 extended from a lifting-up device 18 is connected to a hook 17, and the device 18 is operated to vertically raise the wall panel 11 laid down. The wall panels 18 are lifted up by the device 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall panel which is hung from the ground to the air in order to build a wall panel made of pre-concrete, particularly lightweight cellular concrete (hereinafter referred to as ALC) to a structural frame of a building. It relates to the method of lifting.

[0002]

2. Description of the Related Art Conventionally, there has been known a method for hoisting a wall panel, which comprises the following working steps (Actually opened 4-15349).
No. 5). That is, as shown in FIG. 4, first, the first blind hole 3 is formed in the first foreground surface 2 of the wall panel 1, the steel material 4 is inserted into the blind hole 3, and A second blind hole 6 is bored in the second small cross surface 5 which is orthogonal to each other, and a locking portion (not shown) capable of locking the steel material 4 is provided at the tip portion (not shown), and the hook portion is provided at the base end portion. A first working step of engaging the lifting member 8 and the steel material 4 inside the wall panel 1 by inserting the lifting member 8 having 7 into the second blind hole 6, and a measure extending from a lifting device (not shown). A method of hoisting a wall panel including a second working step of hoisting the wall panel 1 in the air by locking the tip of the body 9 to the hook 7 and then driving the device is known.

[0003]

In the hoisting method, when the wall panel 1 is hoisted and then lowered to a predetermined location, the wall panel 1 is in a vertical state, so that the wall panel 1 can be easily sequentially built on the structural frame. As a result, this hoisting method has an excellent effect that the efficiency of construction can be improved, but the so-called recumbent wall panel 1 laid horizontally on the ground or on a transport vehicle such as a truck is once in a vertical shape. There is the following problem when this work is performed by using the hoisting device.

That is, as shown in FIG. 5, the steel material 4 is inserted into the first blind hole 3 of the recumbent wall panel 1, and the lifting member 8 is inserted into the second blind hole 6 to firstly lift the lifting member. 8 and the steel material 4 are engaged with each other inside the wall panel 1, and then the device 9 extending from the hoisting device is hooked on the hook portion 7, and then the device is driven to drive the second blind as shown in FIG. When the wall panel 1 is vertically raised so that the opening of the hole faces upward, the wall panel 1 having low strength such as the ALC panel is damaged by the lifting member 8 and a part of the wall panel 1 is damaged. is there.

Therefore, it is an object of the present invention to provide a method of suspending a part of a wall panel in the above-mentioned conventional wall panel hoisting method.

[0006]

In order to solve the above-mentioned problems, the present invention provides a first blind hole on the first fore surface or back surface of a wall panel and inserts a steel material into the blind hole, A lifting member having a second blind hole formed in a second small surface orthogonal to the first small surface, a locking portion capable of locking the steel material at a tip end, and a hook portion at a base end. The first working step of engaging the lifting member and the steel material inside the wall panel by inserting the lifting member and the steel material into the second blind hole, and locking the tip end of the device extending from the lifting device to the hook portion. After that, by driving the same device, the recumbent wall panel prepared for hoisting in the first work step is vertically raised.
A wall panel hoisting method, comprising: a working step; and a third working step that subsequently drives the hoisting device to lift the wall panel raised in the second step into the air. A panel breakage prevention step of holding the front and back surfaces of the panel near the blind hole by a holding means to prevent the wall panel from being broken in the second work step is incorporated between the first work step and the second work step. This means is adopted. Here, the back surface of the wall panel means a surface that is the inside of the building when the wall panel is built in the structural body.

[0007]

The above-mentioned means of the present invention operates as follows. In the first blind hole of the recumbent wall panel, the steel material is first inserted and the lifting member is inserted in the second blind hole as in the prior art, so that the lifting member and the steel material are inside the wall panel. Engage. Next, after the front and back surfaces of the wall panel near the second blind hole are held by the holding means, a device extending from the lifting device is hooked on the hook portion. Then, when the hoisting device is driven, the first edge surface of the wall panel rotates about 1/4 times with the edge surface side facing it as a fulcrum, and the wall panel is vertically raised. In this process, the hoisting member tries to twist the wall panel in the second blind hole with the tip end as a fulcrum to rotate the base end side, but since the front and back surfaces of the wall panel are already held by the holding means, the hoisting member is lifted. The concentrated load applied to the wall panel from the above is dispersed as compared with the case where the holding means is not present. As a result, the destruction of the wall panel is suppressed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment embodying the present invention will be described with reference to FIGS. First, as a wall panel, a long-side length 300 cm, a short knit side length 60 cm, and a thickness of 10 cm, the reinforcing ALC wall panel 11 with a reinforcement bar was manufactured by a known method. Then, the ALC wall panel 11 is set in a blind hole punching device (not shown) to
A first blind hole 13 having a depth of about 30 cm was bored inwardly from the small side face 12 on the short side as the face. Further, a second blind hole 16 was bored from the long side small edge surface 15 orthogonal to the first small edge surface 12 so as to intersect with the first blind hole 13.

Next, a tubular steel material 14 having a female screw (not shown) engraved in the middle of the first blind hole 13 is inserted, and a male screw (not shown) is engraved at the tip end and a hook portion at the base end. The steel member 14 and the hoisting member 18 were engaged inside the ALC wall panel 11 by inserting the hoisting member 18 having 17 into the second blind hole 16 and screwing the both screws (first working step). .

Next, a main body 23 having a U-shaped cross section, and a pressing member 21 screwed to one of the two front end portions 23a of the main body 23 facing each other so as to be movable back and forth.
Then, the holding means 20 is prepared which is composed of the basic member of the plate 22 rotatably attached to the tip of the pressing member 21. The central portion of the main body 23 is cut out so that the lifting member 18 attached to the ALC wall panel 11 does not get in the way when the ALC wall panel 11 is held by the holding means 20 as described below. Has become. Further, even if the dish plate 22 rotates together with the pressing member 21, the dish plate 22 and the ALC wall panel 11 prevent the dish plate 22 from scratching the surface of the ALC wall panel 11.
The contact plate 24 is applied between and.

The holding means 20 is placed from the second foreside so as to sandwich the front and back surfaces of the ALC wall panel 11 and the contact plate 24 is left still on the surface of the ALC panel 11 on the second foreground 15 side. The ALC wall panel 11 is held by the holding means 20 by screwing the pressing member 21 and pressing the tip of the pressing member 21 against the ALC wall panel 11 via the plate 22 and the contact plate 24 (destruction preventing step).

Strategy body 1 extending from a lifting device (not shown)
After the front end of 9 is locked to the hook 17 of the lifting member 18, the device is driven. Then, the recumbent ALC wall panel 11 prepared for hoisting in the first work step is rotated about 1/4 times with the second edge face 15a as a fulcrum with the edge face 15a side facing the second edge face 15 as a fulcrum. Wall panel 11
Occurs vertically as in the prior art (second work step). In this process, the hoisting member 18 tries to twist the ALC wall panel 11 in the second blind hole 16 with the tip end as a fulcrum to rotate the base end side.
Since the front and back surfaces of No. 1 are held by the holding means 20, concentrated load applied from the lifting member 18 to the ALC wall panel 11 is dispersed. As a result, the destruction of the ALC wall panel 11 is suppressed.

Further, if the driving of the hoisting device is continued, the second
The ALC wall panel 11 raised in the work step is hung in the air (third work step). After that, the ALC wall panel is built on the structural frame of the building in the same manner as in the prior art. The holding means 20 is detached from the ALC wall panel 11 before the ALC wall panel 11 is suspended in the air.

The present invention is not limited to the above-mentioned embodiments, but can be carried out in other modes as long as the fundamental technical idea of the present invention is followed and the effects of the invention are not significantly impaired. For example, when the ALC wall panel 11 is raised by integrating or interlocking with the lifting member 18 as the structure of the holding means 20, a holding force is relatively applied to the holding means 20, and the lifting force after the holding means 20 is raised vertically is the hook portion. Only 17 may be applied.

Further, a first blind hole 13 formed so as to intersect with a second blind hole 16 formed in the second foreground surface 15 of the wall panel 11 is perpendicular to the rear surface 25 of the wall panel from that surface. Direction, and the steel material 1 such as a bolt is inserted into the blind hole 13
It is also possible to adopt a structure in which the hoisting member 18 is locked to the four. As the lifting member 18, its main body 17a is formed of a pipe-shaped steel material, and an internal thread is screwed in the middle thereof, the bolt 11 is screwed into the internal thread, and an internal thread is threaded on the inner surface of one end of the internal thread. It is also possible to screw the hook portion 17 on. In this embodiment, the bolt 11 can be diverted as an attachment bolt for attaching the wall panel 11 to the structural body.

[0016]

As described in detail above, according to the present invention, after the hoisting member and the steel material are engaged inside the wall panel in the recumbent state, the hoisting member is pulled up by the hoisting device to make the wall panel vertical. When raised, it exerts an excellent effect of preventing the wall panel from being twisted and broken by the lifting member.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is a partial vertical sectional view showing another embodiment of the present invention.

FIG. 4 is a partial perspective view showing a wall panel being hung up in the prior art.

FIG. 5 is a partial perspective view showing the same reclining state of the wall panel.

[Explanation of sign]

 11 Wall Panel 12 First Small Face 13 First Blind Hole 14 Steel Material 15 Second Small Face 16 Second Blind Hole 17 Hook 18 Lifting Member 19 Stroke 20 Clamping Means 25 Back

Claims (1)

[Claims] 1. A first edge face (12) of a wall panel (11).
Alternatively, a first blind hole (13) is bored in the back surface (25), a steel material (14) is inserted into the blind hole, and a second blind hole (15) orthogonal to the first foraminal surface is provided with a second blind hole. A hole (16) is bored, and a lifting member (18) having a locking portion capable of locking with the steel material at the tip end and a hook portion (17) at the base end is inserted into the second blind hole. By doing so, the first working step of engaging the lifting member and the steel material inside the wall panel, and after locking the tip portion of the device (19) extending from the lifting device to the hook portion, the device A second working step for vertically raising the recumbent wall panel prepared for lifting by driving the first working step, and a wall raised in the second step by subsequently driving the lifting device. From the third work step of lifting the panel in the air A method for hoisting a wall panel according to claim 1, wherein the front and back surfaces of the wall panel near the second blind hole are held by the holding means (20) to prevent the wall panel from being broken in the second work step. A method of hoisting a wall panel, characterized in that steps are incorporated between the first work step and the second work step.