JP2842286B2 - Crane lifting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

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

On the other hand, a lifting device for lifting a plurality of loads simultaneously by one lifting operation has been developed.
For example, as shown in FIG. 3, a pair of chain belt driven feeding devices 20 are arranged inside the upper part of a box-shaped hanging frame 10 and a plurality of suspended loads W are suspended and supported on each chain 20a. In addition, the structure is such that the suspended load W is sequentially sent out toward 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, a plurality of panels are lifted at a time,
Since the weight of the lifting device itself increases and the weight also increases, it is necessary to use a dedicated large crane, which is not always practical.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object the purpose of the present invention is to provide a simple structure of a lifting device itself, a small increase in weight, and at least two sheets at the same time according to the power of a normally used crane. It is intended to provide a lifting device for a crane capable of carrying out the lifting work of the panel-like suspended load.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a hanging girder suspended from a hook block of a crane and provided with a turning control device in the center in the longitudinal direction, and a lower part of both ends of the hanging girder. A pair of isosceles triangular or inverted T-shaped hangers suspended perpendicularly to the hangers, and at least both ends of each of the hangers suspend and support both sides of a panel-shaped pair of suspended loads; It is characterized by being made parallel to the girder.

Further, according to the present invention, a panel-shaped cushion member can be suspended below the hanger between the suspended loads (claim 2).

[0008]

According to the above construction, the lifting device simply adds the weight of the swing control device and the pair of hangers in addition to the weight of the suspension girder.

After lifting a suspended load suspended on one of the hangers to a target position, the hanger is tilted by the weight balance to hold the suspended load on the other side, and the direction of the suspended load is controlled by driving the turning control device. After reversing, it can be lifted to another destination.

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

[0011]

An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a posture of a suspended load by a lifting 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 drawing, a lifting device according to the present invention includes a hanging girder 3 made of H-shaped steel or the like suspended from a hook block 1 of a crane via a hanging wire 2 and a center of the upper part of the hanging girder 3 in the longitudinal direction. A fixed swing control device 4 and a pair of isosceles triangular hangers 5 suspended at the upper center thereof at right angles to the lower ends of both ends of the suspension girder 3 are provided.

At the center and both ends of the lower part of each hanger 5, a mounting hole 5a is opened.
, The both sides of the panel-shaped hanging load W are suspended and are parallel to the hanging girder 3. A cushion member 7 made of a panel-shaped foam block is also suspended from the center mounting hole 5a via a suspension wire 6, and is arranged in parallel between both suspended loads W. Each suspended load W is suspended from each hanger 5 with its mounting surface W1 side facing outward.

The turning control device 4 has a gyro mechanism developed earlier by the present applicant. When a gyro mechanism (not shown) built in the turning control device 4 rotates at high speed,
Due to the rotational inertia, the suspension girder 3 turns along the direction of rotation of the gyro mechanism, and controls the attitude against wind pressure applied to the apparatus and torsion of a wire or the like, and also can change the attitude of itself.

Accordingly, the lifting operation to the target position is performed by the crane in the suspended load posture shown in FIG. FIG. 2A shows a state in which one hanging load W has been loaded at one of the target positions A. As the load arrives at the target position A and the load is deposited at the target position A, the hangers 5 balance the load. By the change, it leans toward the suspended load W on the other side, and FIG.
It is stabilized in the inclined state shown in FIG.

At this time, if the inclination changes rapidly, the suspended loads W will collide with each other. However, the cushion member 7 interposed therebetween prevents direct contact, thereby preventing damage or the like. it can.

In this inclined state, the other suspended load W is lifted to another target position B as shown in FIG. At this time, the swing control device 4 is driven, and the suspension girder 3 is turned 180 ° from the state shown in the figure.
If the vehicle is stopped in the turned state, the mounting 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 one suspended load is suspended from each end of each hanger 5 is shown. However, by exchanging the hanger 5 with a longer wing, the number of more hangers can be increased. Can be simultaneously lifted. However, in such a case, the number should be set according to the power of the crane used at the site, and the suspension girder should be turned 180 ° each 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 in detail in the above embodiments, the crane lifting device according to the present invention has the following features.
Since the lifting device only adds the weight of the swing control device and a pair of hangers in addition to the weight of the lifting girder, it can be configured simply and lightly, and simultaneously lifts a number of loads according to the crane's power. There are advantages that can be done.

Further, in the present invention, after the suspended load suspended on one of the hangers is lifted to the target position, the suspended load on the other side is held while the hanger is tilted by the weight balance, and the suspended load is driven by the turning control device. 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 related art.

Further, in the case of the configuration of claim 2 of the present invention, it is possible to prevent a direct collision between suspended loads when the hanger is inclined, thereby improving safety.

[Brief description of the drawings]

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

FIGS. 2A and 2B are explanatory diagrams showing a change in posture during a lifting operation by the hanging load device.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hook block 3 Hanging girder 4 Swing control device 5 Hanger 7 Cushion material W Panel-shaped hanging load

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuichi Ikeda 4-640 Shimoseito, Kiyose-shi, Tokyo Inside the Obayashi Corporation Technical Research Institute (72) Inventor Shigeru Uchida 4-640 Shimoseito, Kiyose-shi, Tokyo Obayashi, Ltd. Inside the Technical Research Institute (72) Inventor Fumihiro Inoue 4-640 Shimoseito, Kiyose-shi, Tokyo Inside the Obayashi Corporation Technical Research Institute (56) References JP-A 1-180485 (JP, U) JP-A 58-1066 (JP) , U) Japanese Patent Publication No. 4-17873 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66C 1/00-1/68

Claims (2)

(57) [Claims] 1. A crane suspended from a hook block,
And a suspension girder provided with a turning control device in the center in the longitudinal direction, and a pair of hangers having an isosceles triangular shape or an inverted T-shape suspended perpendicularly to the lower ends of both ends of the suspension girder, A crane lifting device wherein at least both sides of a pair of panel-shaped suspended loads are suspended and supported at lower portions on both ends of a hanger so as to be parallel to the suspended girder. 2. A crane lifting device according to claim 1, wherein a panel-shaped cushion member is suspended below each hanger between said hanging loads.