JP2590551Y2 - Suspension jig with attitude control device for suspended load - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting jig used for a cargo handling operation using a crane or the like, and more particularly to an improvement of a lifting jig provided with a suspended load attitude control device.

[0002]

2. Description of the Related Art When a suspended load is twisted by a suspended wire, turned under the influence of wind, or caused a load deflection, the suspended load can be efficiently and safely suspended at a predetermined position or place. Make it difficult. Therefore, as a means for solving such inconvenience, a hanging jig in which a posture control device for controlling the posture of a suspended load is assembled has been devised.

[0003] For example, blowers are set at both ends of a hanger disclosed in Japanese Utility Model Laid-Open Publication No. 3-38890, and the hanger is turned using the horizontal thrust of the hanger to set the posture of the load. Of the present invention, and furthermore, a device according to the present applicant who has improved the technology of the present invention (Japanese Utility Model Application No. 4-3).
6865).

FIG. 7A is a plan view showing the basic configuration of a hanging jig having a posture control function by the present applicant, and FIG. 7B is a front view thereof. . As shown in the figure, a hanging jig having a conventional posture control function is provided at both left and right ends of the hanging beam 20.
, And a fan that generates a thrust in the horizontal direction, specifically, fans 21 and 21 are assembled. Then, by turning the fans 21 and 21 that generate this thrust at appropriate times, a turning torque is applied to the suspension beam 20, and the posture of the suspended load is controlled via the turning torque.

Further, this point will be specifically described. For example, as shown in the plan view of FIG. 7 (a), when the posture of the suspended load is to be turned in the direction of arrow A, ie, counterclockwise, Fans 2 provided at both left and right ends of the suspension beam 20
1 and 21 are started to generate a thrust in the direction of arrow a. Then, a turning torque acts on the suspension beam 20 by the thrust. When the turning torque acts on the suspension beam 20, the direction of the suspended load, that is, the posture, is controlled to turn counterclockwise. That is, the fans 21 and 21
The attitude of the suspended load is controlled by the action of the turning torque due to the thrust.

[0006]

However, the conventional lifting jig having the function of controlling the suspended load has the following problems. (1) First, the first point is that the turning torque, which is the power of the attitude control, depends on the thrust by the fan. However, this thrust is not exerted until the rotation speed of the fan reaches a predetermined rotation speed. That is, the motor that rotationally drives the fan is:
There is a time lag from when the switch is turned on to when the fan reaches the rotation speed at which the desired thrust is generated. As a result, the responsiveness to the attitude control of the essential suspended load is low. (2) The second point is that the span of the suspended beam, that is, the suspended beam in which fans are assembled at both left and right ends has a fixed length. However, the length of the suspended load itself, or more precisely, the length corresponding to the span direction of the suspended beam is not constant. In some cases, it may be shorter than the length of the suspension beam. In other words, the left and right ends of the suspended beam may be greatly extended outward from the left and right sides of the suspended load. In such a case, for example, when the work of hanging the outer wall plate of a high-rise building or the like is performed, the hanging beam that protrudes left and right from the outer wall plate, which is the suspended load, becomes an obstruction at the corner, which hinders the mounting work. There was a problem. The present invention has been devised for the purpose of providing a suspension jig provided with a posture control device that solves such a problem.

[0007]

As means for achieving the above object, in the present invention, for the first problem,
The fan that generates thrust is always operated at the rated rotation speed, that is, a predetermined airflow is created, and the attitude of the suspended load can be controlled by controlling the direction of the airflow. The second problem is addressed as a configuration in which the span of the suspension beam can be adjusted according to the width of the suspended load.

Hereinafter, the configuration will be described. First, fans are installed on both left and right ends of a suspended beam suspended horizontally by a crane, and the thrust of the installed fan causes a turning torque to act on the suspended beam to change the posture of the suspended load suspended on the suspended beam. In a hanging jig with a posture control device for a suspended load to be controlled, a remote-controlled steering is provided on a discharge port side of a fan provided on both right and left ends of the hanging beam.

In addition, instead of providing a remotely operated steering rudder on the discharge port side of the fan, the fan itself is installed on the left and right ends of the suspended beam so as to be swingable by remote control, and the air flow axis of the fan is suspended by the suspended beam. , Can be changed arbitrarily.

[0010] Further, the suspension beam has a configuration in which a span can be adjusted.

The present invention is constructed as described above. First, the suspension beam is suspended horizontally by a crane, and an appropriate load is slung on the suspension beam. After sling, lift the suspended load. Immediately before the lifting, start the fans provided on both left and right ends of the suspended beam and operate at the rated speed. In this state, the suspended load is lifted, and a swingable fan or a steering wheel provided at the left and right ends of the suspended beam is remotely controlled. That is, the direction of the airflow axis of the fan is changed as needed.
Then, a turning torque acts on the suspension beam by the thrust generated by the airflow of each fan. If the turning torque is controlled by the remote control, the posture of the suspended load suspended on the suspension beam changes very sensitively.

Also, since the span of the suspension beam is adjustable, if the span is adjusted in advance according to the width of the suspended load, it is possible to enter the corner as seen in the work of suspending and attaching the building outer wall plate. Inconvenience in the part is eliminated.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction and operation of a hanging jig with a suspended load attitude control device according to the present invention will be specifically described with reference to an embodiment shown in the drawings. First, FIG. 1 shows a posture control device in which fans 2 and 2 are provided at both left and right ends of a suspension beam 1, and steering wheels 3 and 3 are installed on the discharge ports of the fans 2 and 2 respectively. FIG. 2 is a plan view of the hanging jig.
Is a front view thereof. It should be noted that the steering 3
Although the means for remote-controlling Nos. 3 and 3 are not shown, a so-called commonly used wireless remote control system is employed. Incidentally, in FIG. 1, the suspension beam 1 is provided with an operation unit 4 on the receiving side for operating the steerings 3 and 3, and the operation unit 4 is configured to be controlled by wireless guidance from the ground. The operation unit 4 for the fans 2 and 2 is shown on the left side of the operation unit 4. In the embodiment, a hydraulic power unit is used, and the fans 2 and 2 are driven to rotate by a hydraulic motor.

In FIG. 2, the hanging load is slung and lifted as indicated by the imaginary line, and in this state, the fans 2 and 2 are operated at the rated rotation to generate an air flow. For example, when it is desired to point the posture of the suspended load in the direction of the arrow B in FIG. 1, the respective steering wheels 3 and 3 are remotely operated in the direction indicated by the dotted line in FIG. Then, the airflow from the fans 2 and 2 is deflected by the steering 3 and 3. As a result of the deflection, a sine component of the deflection angle is generated as a component force as a reaction of the deflection, and a turning torque in the direction of the arrow B acts on the suspension beam 1. If a turning torque acts on the suspension beam 1, the direction of the load suspended by the suspension beam 1 will be changed by the action of the rotation torque.

FIG. 3 shows an alternative to the steerings 3 and 3,
FIG. 4 is a plan view showing an embodiment in which the fans 2 and 2 themselves are swingably mounted on the left and right ends of the hanging beam 1 by remote control, and FIG. 4 is a front view thereof. The operating principle is the same as in the case of the steerings 3 and 3. Although the structure of the means for swinging the fans 2 and 2 at both left and right ends of the suspension beam 1 is not shown, the mechanism is operated by a mechanical swing mechanism such as a swing gear and a motor and a swing mechanism. It was configured to be.

Further, in order to eliminate the inconvenience at the time of suspending installation work from the relationship between the span of the suspending jig, ie, the span L of the suspending beam 1 and the width of the suspended load, the span of the suspending beam 1 is configured to be adjustable. As means, as shown in FIG. 5, an auxiliary joint member 1a is provided in the middle of the suspension beam 1, and the span L can be adjusted by interposing the auxiliary joint member 1a. Of course, the auxiliary joint member 1a
Instead, the suspension beam 1 itself is configured in advance as a telescopic telescopic type, and the span L
May be adjusted.

FIG. 6 is an operation system diagram illustrating a case where the hanging jig with the attitude control device is configured as a system so as to be capable of remote control operation.

As described above through the embodiments, the present invention is directed to a configuration in which fans are provided at both left and right ends of a suspension beam, and a steering which can be remotely operated is provided at a discharge port side of the fans. Since the fan itself is provided so as to be swingable by remote control, both fans are operated in advance, and the discharge airflow of the fans is discharged in the same direction as the axis of the suspension beam. That is, the operation is performed at the rated rotation speed when the hanging work of the suspended load on the suspended beam is completed.

In this state, the suspended load is lifted, and the steering directions of the left and right ends or the fan itself is swung by remote control as appropriate. That is, deflection control of the flow direction of the discharge airflow is performed. Then, a turning torque is applied to the suspension beam by the thrust by the discharge airflow, and the posture of the suspended load itself suspended on the suspension beam is controlled in an appropriate direction.

The width of the suspended load is greater than the span of the suspended beam.
In the case where the suspension beam largely extends to the left and right, the span of the suspension beam itself is adjusted to be substantially the same as or slightly shorter than the width of the suspended load in advance. Then, the hanging beam does not hinder the work at the corner at the time of the hanging work.

[0021]

[Effect of the Invention] The hanging jig with the suspended load attitude control device according to the present invention exhibits the following effects as compared with the conventional hanging jig. (1) Since the discharge airflow from the fan is discharged in advance at the rated rotation speed, the response of the attitude control is excellent. (2) A bidirectional fan is not required as a type of the fan itself, and a unidirectional fan may be used. as a result,
The structure is simple, and it is advantageous in terms of efficiency. (3) Since the span of the suspended beam is adjustable, the inconvenience of suspending the suspended load is eliminated by adjusting the span of the suspended beam according to the length of the suspended load. be able to.

[Brief description of the drawings]

FIG. 1 is a plan view of a hanging jig with a posture control device for a suspended load provided with a steering wheel on a discharge port side of a fan provided at both left and right ends of a hanging beam.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of a hanging jig provided with a posture control device for a suspended load in which fans themselves provided at both left and right end portions of a hanging beam can swing freely.

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a front view of the suspension beam to which an auxiliary joint member is assembled so that the span of the suspension beam can be adjusted.

FIG. 6 is an operation system diagram illustrating a system in a case where the hanging jig with the attitude control device is configured to be able to be remotely controlled.

FIG. 7A is a plan view of a conventional hanging jig with a suspended load attitude control device, and FIG. 7B is a front view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Hanging beam 2 ... Fan 3 ... Steering 4 ... Operation unit 5 ... Operating unit (motor)

Claims (3)

(57) [Scope of request for utility model registration] 1. A hanging beam suspended horizontally by a crane is provided with fans at both left and right ends thereof, and a thrust by the fan causes a turning torque to act on the hanging beam to change the posture of the suspended load suspended from the hanging beam. in the attitude control device with Tutsi tool control to the suspended load, the discharge port side of the left and right ends of the fan, respectively with the attitude control device of the suspended load, characterized in that a steering rudder remote control Tutsi Utensils. 2. A suspension suspended horizontally by a crane.
Fans are provided at both left and right ends of the beam.
The thrust causes a swing torque to act on the suspension beam,
Attitude control of suspended load to control attitude of suspended load suspended on beam
The apparatus with Tutsi device, the fan in the right and left ends of the hanger beam hanging characterized in that it is installed head-shaking freely by remote control
Hanging jig with load attitude control device. Span wherein the suspension beam is suspended according to claim 1 or claim 2, characterized in that adjustable
Hanging jig with load attitude control device.