JPS6175788A - Regulator for position of hanging-down of hung load - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an apparatus for adjusting the hanging position of a suspended load such as a container when the suspended load is suspended onto a chassis by a crane.

[Background of the invention]

Unloaded containers are generally loaded one by one onto a chassis and transported. The chassis is stopped at a predetermined position parallel to the sill beam directly below the crane girder, and the container is suspended on top of this chassis, but there is often a misalignment between the chassis position and the suspended position of the container. If the deviation was large, it was corrected by moving the crane body, trolley, or chassis, and if the deviation was small, a worker pressed the container to correct the deviation and then hang it.

However, working directly under or near a container suspended by a crane is extremely dangerous work, and there are risks such as crane operation errors or the container swinging due to wind, etc. This took a long time, which caused a long time to be spent after the container was unloaded and before it was transported.

[Purpose of the invention]

The present invention was made in view of the problems of the prior art,
The purpose is to provide a suspension position adjustment device for a suspended load that can reliably suspend the suspended load at a predetermined position on the chassis.

[Summary of the invention]

According to the present invention, there is provided a pedestal disposed parallel to the sill beam of the crane, and at least three arms that are attached to the pedestal and extend and retract, and each arm is brought into contact with the chassis so as to extend the chassis. a chassis position detection mechanism for detecting a position; and a chassis position detection mechanism assembled to the pedestal;
a suspended load position adjustment mechanism having at least three pushers that are slidable along the mount, each pusher pressing the outer surface of the suspended load positioned above the chassis to adjust the position of the suspended load; A suspension position adjustment device for a suspended load is provided,
This achieves the above objective.

[Embodiments of the invention]

Next, embodiments of the present invention will be described based on the drawings.

1 to 3 show embodiments of the present invention.
The figure is a plan view of the device for adjusting the hanging position of a suspended load, Figure 2 is a view of the device taken along the line 1-1 shown in Figure 1, and Figure 3 is a longitudinal sectional view of the pusher. .

In these figures, a pedestal 4 extending parallel to the sill beam 2 is attached to the sill beam 2 installed between 70 clay legs (not shown), and a pair of pedestals are placed on the pedestal 4, with a reference point O in between. Pusher 10 (IOA, l0B)
is assembled so as to be slidable along the pedestal 4.

A screw s6 extending parallel to the sill beam 2 and a guide rail 8 are extended on the pedestal 4, and the pusher IOA,
One set of each IOB is attached to the threaded rod 6 via sliders 12 (12A, 12B). The threaded rod 6 borders the base fishing point O ((has a left-hand thread and a right-hand thread engraved on it, and is rotated by a drive motor (not shown), thereby causing the pushers 10A and IOB to slide toward and away from each other, The distance from point O can be changed.

Details of the pusher 10 are shown in FIG. 3, and have a structure in which a cylindrical frame 14 is fixed to a slider 12, and a centrifugal cylinder 16 is disposed within this frame 14. The piston rod 17 of the electric cylinder 16 is guided by the frame 14 and can slide in the left-right direction in FIG.
The tip of rod 17.

An elastic member 18 is attached to the end to prevent damage to the container surface when pressing the container.

A slider 12C is attached to a threaded rod 6 adjacent to the slider 12A, and a support member 1 is attached to the slider 12C.
A pusher IOC is disposed parallel to the threaded rod 6 via 9. The support member 19 is fixed to the frame 14 of the pusher IOA, and the pusher IOC is configured to slide along the pedestal 4 together with the pusher IOA. Note that the structure of the pusher 10C is the same as that of the pushers IOA and IOB, so a detailed description thereof will be omitted by assigning the same reference numerals.

The operations of these pushers IOA, IOB, and 10C are controlled by a controller (not shown).

The horizontal frame 32 of the chassis frame 30 is located at the lower part of the sill beam 2 and has a reference point O point t.
The horizontal position detection arm 20 (2OA, 20B) is placed at a position separated by a distance corresponding to the distance l between (32A, 32B).
) are installed respectively. Detection arm 20A, 20
B is an electric cylinder 22 and a cylinder rod 23, respectively.
and a contact plate 24 which is attached to the tip of this rod and is a contact part with the horizontal frame 32. Although the rod 23 is extended by the operation of the cylinder 22, the contact plate 24 is in contact with the frame 32, and the rod 23 is in constant contact with the horizontal frame 32. If a force greater than the pressure is applied, the operation of the cylinder 22 is stopped. The contact plate 24 of the detection arm 20A includes
The detection arm 2 is connected parallel to the threaded rod 6 via the bracket 26.
0C is installed. The structure of the detection arm 20C is the same as that of the other detection arms 20A and 20B, so a description thereof will be omitted.

Now, as shown in FIG. 1, if the X-axis is defined along the threaded rod 6, and the axis passing through the reference point O and perpendicular to the X-axis is defined as the Y-axis, then the detection arms 20A and 20C are connected to the chassis frame. 3
0, the detection arm 20B detects the Y coordinate of the tip position of the horizontal frame 32B of the chassis frame 30, and outputs these to the controller. There is. The controller specifies the position of the chassis frame 30 based on the signals from the detection arms 20A, 20B, and 20C, and thereby specifies the container placement part position 36 of the chassis frame 30. And the corner part 3 of the container placement position 36
Pusher IOA up to 6A.

Stroke amount of cylinder rod of 10C and pusher IOB up to corner part 36B of container placement part position 36
The stroke amount of each cylinder rod is calculated, and signals corresponding to these are output to each pusher IOA and IO.
B. It is designed to activate each IOC.

Next, a procedure for placing a container on a chassis using this device will be explained.

The center of the chassis frame 30 in the longitudinal direction is mounted on a frame 4.
Stop the chassis so that it almost matches the reference point 0. Then, pushers I are placed at positions corresponding to the container storage sections 36A and 36B near both ends of the chassis frame 300.
Move OA and IOB. Then, the container 40 suspended by the hanging tool 42 is suspended and stopped slightly above the chassis 30. And position detection arms 20A, 20B, 2
The positions of the tips of the horizontal frames 32A and 32B of the chassis frame 30 are detected and output to the controller. Next, the pushers IOA and IOB are moved by the stroke amount instructed by the controller.

10C is activated to press the outer surface of the container 40 into alignment with the container a fR position 36 on the chassis frame 30. Then, in this state, the container 40 is lowered and placed on the chassis frame 30. The container 40 is located at the container mounting position 36 of the chassis frame 30.
It will definitely be stored in.

In the embodiment described above, the slider 12 is assembled to the threaded rod 6 and the guide rail 8, and the pushers IOA and 10B are slid along the pedestal 4, but this is the means for sliding the pusher 10. The present invention is not limited to this, and may be a mechanism in which, for example, a slider with wheels is attached to an extended rail and the slider is pulled by a wire rope or the like to cause the slider to slide, or other means may be used.

Further, in the embodiment, the position detection arm 20A.

20B is fixed to the pedestal 4 and cannot change its distance from the reference point 0, but the position detection arms 2OA and 20B also have pushers 10A.

It is also possible to provide a sliding mechanism similar to 10B so that the position from the reference point O can be changed. If you do this, the horizontal frame 32A.

The present invention can be widely applied when containers of various glaze sizes are suspended from chassis of various medium sizes with different intervals between 32B.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a suspended load such as a container can be automatically maintained in alignment with the suspended load placement position on the chassis frame, so that the suspended load can be accurately placed on the chassis frame. In addition, it becomes possible to suspend the suspended load smoothly, and as a result, the working time required for carrying out the suspended load by the chassis can be shortened.

[Brief explanation of drawings]

FIG. 1 is a plan view of a hanging load position adjustment device according to a first embodiment of the present invention, and FIG. 2 is a line M-1 shown in FIG. 1.
FIG. 3 is a longitudinal sectional view of the pusher. 2... Silpeam, 4... Frame, 6...
threaded rod. 8... Guide rail, 10 (IOA, IOB
, 10C)...Pusher, 12 (12A, 1
2B, 12C)...Slider, 16.22...
・Electric cylinder. 18... Elastic member, 20 (20A, 20B,
20C)...Position detection arm, 30...Chassis frame, 32 (32A, 32B)...
horizontal frame. 36...Chassis container @tffit, 4
0...Container, 42...Hanging tool.

Claims (1)

[Claims] (1) It has a pedestal placed parallel to the sill beam of the crane, and at least three arms that are attached to this pedestal and extend and contract, each arm making contact with the chassis from which the load is to be suspended. a chassis position detection mechanism for detecting the position of the chassis; and at least three pushers that are assembled to the pedestal and are slidable along the pedestal, each pusher being positioned above the chassis; A suspended load position adjustment device comprising: a suspended load position adjustment mechanism that presses the outer surface of the load to adjust the position of the suspended load.