JPH09310501A - Auxiliary device for pulling suspended load - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely pull a suspended load, by rotatably providing horizontally a rope guide on the upper part of the load, by which a part of a pulling rope can be delivered to the hand side in accordance with an operator's request. SOLUTION: A rope guide 30 which is freely rotatable in both vertical and horizontal directions around a rotary disk 32 is fitted to the central part of the upper face of the body 12. A part of a pulling rope 20 is temporarily fixed to the other end of the rope guide 30 in advance on the ground. After a PC board 2 has been hoisted up to a nearly specified level of a wall face W, the rotary disk 32 is actuated both vertically and horizontally by radio control in accordance with the requests of operators standing at the wall side or a working floor F to pull the front end of the rope guide 30 to the operator's hands. In this way, the operator can grasp the pulling rope 20 to correct the direction of the PC board 2 and pull it in the building body side. Accordingly, the pulling work is facilitated and the installation time of PC boards can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary device used to draw a suspended load such as a PC plate lifted by a crane or the like near a wall on a building construction floor.

[0002]

2. Description of the Related Art Conventionally, in order to attach an exterior material, especially a heavy PC plate to the outer wall surface of a building, as shown in FIG. 4, the PC plate 2 is lifted by a crane and lifted from the periphery of the building to the wall. Then, the PC block 2 is attached using the chain block 6 and the like connected between the hanging portion (hook) 4 of the crane and the PC plate 2 while the PC plate 2 is being lifted.

Conventionally, in the work of mounting the PC plate 2,
PC version 2 where a worker near the wall lifted a rod with a crane
The PC plate is pulled up to the vicinity of a predetermined mounting position by pushing it against the body to correct the posture or using a pulling rod whose tip is bent like a hook.

However, it is not easy to pull in the PC plate 2 which weighs several tons at a place facing the outside of the building, and sometimes the worker leans outside to work. Is a risky operation due to the rotation of the PC plate 2.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pull-in assisting device capable of safely and securely pulling in a suspended load such as a PC plate in a dangerous work place such as mounting exterior materials. Is.

[0006]

An apparatus for retracting a suspended load according to the present invention is hoisted by a crane and is connected to a PC.
A main body capable of suspending a suspended load such as a plate, a pull-in rope having at least one end attached to the main body, and a rope guide attached to the main body, which is requested by an operator located near a wall on the construction floor. According to the present invention, a rope guide capable of delivering a part of the rope to the hand is provided.

It is preferable that a part of the rope is temporarily fixed to the tip of the rope guide, and the rope guide is horizontally rotatably attached to the upper portion of the main body.

Further, in the suspended load pulling assist device according to the present invention, a pulling rope having one end attached to an upper hanging piece of a suspended load such as a PC plate, and a part of the rope being temporarily fixed at the tip, A rope guide that can be attached to the upper part of a suspended load so that it can rotate horizontally, and consists of a rope guide that can deliver part of the rope to the operator at the request of a worker who is located near the wall on the construction floor. It is characterized by that.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view for explaining a work of pulling in a PC plate. In FIG. 1A, a suspended load pulling assist device 10 according to the present invention is a main body 12, a pulling rope 20, and It is composed of a rope guide 30.

In this embodiment, a horizontally long main body 12 having a width substantially equal to the width of the PC plate 2 is lifted by a crane (not shown) via a rope 8 and the PC plate 2 is suspended via a rope 14. . An elongated rod-shaped rope guide 30 is fixed to a central portion of the upper surface of the main body 12 via a rotary disc 32, and the rope guide 30 can be freely rotated in the vertical direction and the horizontal direction by the rotary disc 32 as a fulcrum. Is installed as. A part of the pull-in rope 20 is temporarily fixed to the other end of the rope guide 30, and both ends of the rope 20 are joined to attachment pieces 16 and 16 attached to both ends of the upper surface of the main body 12. The rope 8 for lifting with a crane may be fastened to the attachment pieces 16, 16.

FIG. 1A shows an auxiliary device 10 for pulling a suspended load up to the position where the PC plate 2 is attached to the wall surface W of the building frame.
1 shows a state in which the crane is hoisted and transported via a crane, and before the PC plate 2 is lifted by the crane, the pull-in rope 20 is previously coupled to the predetermined position at the ground or at the PC plate lifting position. deep.

After the PC plate 2 is lifted and conveyed to the vicinity of the mounting position of the wall surface W, the turntable 32 is moved vertically and horizontally by wireless operation or the like in response to a request from an operator located near the wall of the working floor F. If the tip of the rope guide 30 is brought close to the operator's hand by operating the operator, the operator can grasp a part of the pull-in rope 20.
Therefore, as shown in FIG.
To correct the orientation of the PC plate 2 and make it parallel to the wall surface W
The plate 2 can be pulled in to the body side.

After the pulling-in work, the PC plate 2 is attached by fixing the fasteners provided on the back surface of the PC plate 2 to the mounting hardware of the building frame in the same manner as the normal work. Further, the suspended load pulling-in assisting device 10 is separated from the PC plate 2, and is sent to the hoisting place of the PC plate 2 by using a crane or other equipment, and then the above-described work is repeated.

FIG. 2 shows a modification of the suspended load pulling assist device 10. In FIG. 2, the same members as those in FIG. 1 are designated by the same reference numerals and their description is omitted. In this embodiment, the rope guide 30 is not a rod-like shape but is an extendable mechanism that is attached so as to be rotatable in the horizontal direction around the turntable 32.

FIG. 3 shows another embodiment of the apparatus 10 for pulling in a suspended load according to the present invention. In this embodiment, the main body 12 is unnecessary and the rope guide 30 is directly attached to the central portion of the upper surface of the PC plate 2. The embodiment is different from the embodiment described in FIG. Further, the lifting rope 8 is fastened to the hanging pieces 16 and 16 of the PC plate 2, and at the same time, both ends of the pull-in rope 20 are also joined to the hanging pieces 16 and 16. P
The work of pulling in the C plate 2 can be performed in the same manner as in the embodiment shown in FIG.

[0017]

According to the present invention, it is possible to safely and reliably pull in a suspended load such as a PC plate. Further, since the pulling-in work is facilitated, the time required for attaching the PC plate or the like is shortened, and the crane restraint time can be shortened, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a schematic diagram for explaining a work of mounting a PC plate using a suspended load drawing assist device according to the present invention.

FIG. 2 is a schematic diagram for explaining a work of attaching a PC plate by a modified example of the suspended load drawing assist device.

FIG. 3 is a schematic view for explaining a work of attaching a PC plate according to another embodiment of the suspended load drawing assist device.

FIG. 4 is a side view for explaining a work of mounting the PC plate.

[Explanation of symbols]

 2 PC version 10 Retracting auxiliary device 12 Main body 16 Mounting piece (hanging piece) 20 Retracting rope 30 Rope guide 32 Turntable W Wall of building frame F Working floor

Claims (3)

[Claims] 1. A main body that can be lifted by a crane and can hang a suspended load such as a PC plate, a pull-in rope having at least one end attached to the main body, and a rope guide attached to the main body. An apparatus for pulling in a suspended load, which comprises a rope guide capable of delivering a part of the rope to the operator's request at the side of a wall on the construction floor. 2. The suspended load according to claim 1, wherein a part of the rope is temporarily fixed to a tip of the rope guide, and the rope guide is attached to an upper portion of the main body so as to be horizontally rotatable. Retraction assist device. 3. A pull-in rope having one end attached to an upper hanging piece of a hanging load such as a PC plate, and a part of the rope is temporarily fixed to a tip end of the pulling rope so as to be horizontally rotatable attached to the upper part of the hanging load. A rope guide capable of pulling a suspended load, which comprises a rope guide capable of delivering a part of the rope to the operator at the request of an operator located near a wall on the construction floor.