JPH08259171A - Slinging device of crane - Google Patents

Abstract

PURPOSE: To carry out cargo lifting work of at least two sheets of panel shape slung cargoes simultaneously in accordance with capacity of a crane usually used by a slinging device which is simple in structure and does not increase its weight much. CONSTITUTION: A slinging device for a crane is furnished with a suspension girder 3 suspended down on a hook block 1 through a suspension wire 2 and provided with a revolutional control device 4 in the center in the longitudinal direction and a pair of isosceles triangle hangers 5 suspended down on both end lower parts of the suspension girder 3 orthogonal with them, and both sides of a pair of panel shape slung cargoes W are made in parallel with the suspension girder 3 by suspending them on both end lower parts of each of the hangers 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crane hoisting device capable of hoisting at least two panel-shaped hoists to a target position by one hoisting operation.

[0002]

2. Description of the Related Art Generally, when hoisting a panel-shaped suspended load such as a curtain wall to a target position via a crane, the suspended load is lifted one by one via a suspension girder. However, as the work goes to higher floors, the lifting work time becomes longer and the work efficiency decreases.

On the other hand, a lifting device for simultaneously lifting a plurality of suspended loads by one lifting operation has also been developed.
For example, as shown in FIG. 3, a pair of chain belt drive type feeding devices 20 are arranged inside the upper portion of a box-shaped suspension frame 10, and a plurality of suspended loads W are suspended and supported by each chain 20a. Incidentally, the structure is such that the suspended load W is sequentially sent toward the one side opening of the suspension frame 1 by driving the motor 20b arranged at the end of the feeding device 20.

[0004]

However, in this structure, in addition to lifting a plurality of panels at once,
Since the weight of the lifting device itself becomes large and the weight corresponding to this increases, it is necessary to use a large dedicated crane, which is not always practical.

The present invention has been made in view of the above circumstances, and an object thereof is that the structure of the hoisting device itself is simple, the weight increase is small, and at least two cranes are used at the same time depending on the ability of a crane normally used. The present invention provides a crane hoisting device capable of hoisting a panel-shaped hoisting load.

[0006]

In order to achieve the above-mentioned object, the present invention is directed to a suspension girder suspended from a hook block of a crane and provided with a swing control device at the center in the longitudinal direction. A pair of isosceles triangle-shaped or inverted T-shaped hangers that are suspended orthogonally to each other, and at least both ends of each of the hangers suspend and support both sides of a pair of panel-shaped suspended loads. It is characterized by being parallel to the girder.

Further, according to the present invention, a panel-shaped cushion member can be suspended and supported at the bottom of each hanger between the suspended loads (claim 2).

[0008]

According to the above construction, the hoisting device only needs to add the weight of the suspension girder and the weight of the turning control device and a pair of hangers.

After suspending the suspended load on one of the hangers at a desired position, the weight balance balances the hanger while holding the suspended load on the other side, and the direction of the suspended load is changed by driving the turning control device. After reversing, it can be lifted to another target position.

According to the structure of claim 2, it is possible to prevent a direct collision between the suspended loads when the hanger is inclined.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a suspended posture by a suspending device according to the present invention, and FIGS. 2 (a) and 2 (b) are explanatory views showing a posture change during a lifting operation.

In the figure, a hoisting device according to the present invention comprises a suspension girder 3 made of H-shaped steel or the like suspended on a hook block 1 of a crane via a suspension wire 2, and a suspension girder 3 at the center in the upper longitudinal direction. A fixed swing control device 4 and a pair of hangers 5 in the shape of an isosceles triangle are provided at the lower ends of both ends of the suspension girder 3 and are vertically suspended from the upper part of the center.

Mounting holes 5a are opened in the lower center and both ends of each hanger 5, and the hanging wire 6 is placed in the mounting holes 5a at both ends.
Both sides of the panel-shaped suspended load W are suspended and supported so as to be parallel to the suspension girder 3. A cushion material 7 made of a foam block in the form of a panel is suspended and supported in the central mounting hole 5a through a suspending wire 6, and is arranged in parallel between both suspended loads W. Each suspended load W is suspended on each hanger 5 with its mounting surface W1 side facing outward.

The turning control device 4 is provided with a gyro mechanism previously developed by the present applicant, and when a gyro mechanism (not shown) incorporated in the turning control device 4 rotates at high speed,
Due to the rotational inertia, the suspension girder 3 swivels along the rotation direction of the gyro mechanism, so that the attitude of the wind girder applied to the device and the twist of the wire or the like can be controlled, and the attitude of the girder itself can be changed.

Therefore, the hoisting work to the target position is performed by the crane in the hanging posture shown in FIG. FIG. 2A shows a state in which one of the suspended loads W is loaded on the one target position A, and as the load is deposited on the target position A and the load is deposited at the target position A, each hanger 5 is balanced in load. Due to the change, the load W tilts toward the other side of the suspended load W, and FIG.
It stabilizes in the inclined state shown in (b).

At this time, if the inclination is rapidly changed, the suspended loads W will collide with each other. However, the cushion material 7 interposed therebetween prevents direct contact, and damages can be prevented in advance. it can.

In this tilted state, the other suspended load W is lifted to another target position B as shown in FIG. 2 (b). At this time, the turning control device 4 is driven to move the suspension girder 3 from the illustrated state by 180 °.
When stopped in a rotated state, the attachment surface W1 of the other suspended load W can be supplied toward the target position B side.

In the above-described embodiment, the case where the suspended load is suspended and supported at both ends of each hanger 5 is shown. However, by replacing the hanger 5 with a longer blade length, a larger number of hanger 5 can be obtained. The suspended loads W can be simultaneously lifted. However, in such a case, the number of cranes should be set according to the capacity of the crane used at the site, and the suspension girder must be turned 180 ° every time one of the suspended loads W is supplied to the target position. It is necessary to balance the suspended load as much as possible.

[0020]

As described above in detail with reference to the embodiments, in the crane lifting device according to the present invention,
In addition to the weight of the suspension girder, the weight of the suspension girder is added to the weight of the swing control device and a pair of hangers, so it can be configured simply and lightweight, and at the same time, the number of suspended loads according to the crane's capacity can be lifted simultaneously. There are advantages.

Further, according to the present invention, after the suspended load suspended and supported on one of the hangers is lifted to the target position, the hanger is tilted by the weight balance and the suspended load on the other side is held and the suspension control device drives the swing control device to suspend the suspended load. After reversing the direction of the load, the load can be lifted to another target position, so that the posture of the suspended load can be adjusted without using a large-scale feeding device as in the past.

Further, according to the second aspect of the present invention, it is possible to prevent the direct collision of the suspended loads with each other when the hanger is inclined, and it is possible to improve the safety.

[Brief description of drawings]

FIG. 1 is a perspective view showing a suspended load posture by a suspended load device according to the present invention.

2 (a) and 2 (b) are explanatory diagrams showing posture changes during lifting work by the hanging device.

FIG. 3 is a perspective view showing a hanging posture by a conventional hanging device.

[Explanation of symbols]

 1 Hook block 3 Suspended girder 4 Turning control device 5 Hanger 7 Cushion material W Panel-shaped suspended load

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuichi Ikeda 4-640 Shimoseido, Kiyose-shi, Tokyo Inside Obayashi Technical Research Institute Co., Ltd. In-house (72) Inventor Fumihiro Inoue 4-640 Shimoseido, Kiyose-shi, Tokyo Inside Obayashi Corp. Research Institute

Claims (2)

[Claims] 1. Hanging on a hook block of a crane,
And a suspension girder provided with a turning control device at the center in the longitudinal direction, and a pair of hangers having an isosceles triangular shape or an inverted T-shape hung at the lower ends of both ends of the suspension girder orthogonally thereto. A hoisting device for a crane, characterized in that at least a pair of panel-shaped hoisting loads are suspended and supported at the lower ends of both ends of a hanger so as to be parallel to the suspension girder. 2. The hoisting device for a crane according to claim 1, wherein a panel-shaped cushioning material is suspended and supported on a lower portion of each hanger between the hoisting loads.