JP2000016749A - Hoisting accessory for conveying board material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clamp a material in a desired position even when a bank height is changed, by forming a clamp capable of opening/closing in both side parts, also having an open/close switching mechanism controlling the clamp opened/ closed by detecting pressing of a bottom plate arranged at a lower end between the clamps, and providing the bottom plate position adjustably in a vertical direction. SOLUTION: A pair of clamps 4 are mounted on an arm 3. A tip end part of the arm 3 is connected to a hanger 7 through a crank 5 and an open/close switching mechanism, the clamp 4 can be opened/closed according as the hanger 7 is lifted. The open/close switching mechanism controls opening/closing of the clamp 4 by detecting pressing by a bottom plate 8 mounted at a lower end part. The bottom plate 8 can be fixed by adjusting to a desired position in a vertical direction by a positioning mechanism. In this hoisting accessory 1, since the clamp 4 is lowered down to a desired position by abutting the bottom plate 8 on an upper surface of a bank when the clamp 4 is lowered down to be fully opened, here the bottom plate 8 is positioned. In this way, a desired clamp position can be maintained even when a height of the conveying bank is changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a plate material transporting hanger for transporting a plurality of horizontally laminated plates (banks) such as ALC panels while holding the plate surfaces at both ends thereof.

[0002]

2. Description of the Related Art Conventionally, a plate (bank) in which a desired number of plate materials such as ALC panels are stacked in a desired number of horizontal directions is used as a hanger for holding and transferring plate surfaces at both ends, for example, as shown in FIGS. There is. This hanging tool 20 is provided with an L-shaped arm 23 at a position opposite to the left and right below a rectangular frame 21, and a pair of elongated plate-shaped clamps 22 is attached to a lower end of a vertical portion of the arm 23. It is what I wore. The clamp 22 has on its surface a pad on which a rubber sheet 22b is attached around a cushion material 22a.

[0003] The horizontal portion of the arm 23 is rotatably supported by the frame 21, and the distal end portion thereof is connected to a suspender 26 via a link 24 and an opening / closing switching mechanism 25. This means that the hanging hand 26 is engaged with the hook of the crane and raised, the load of the hanging tool 20 and the bank 30 is applied to the hanging hand 26, the clamp 22 is closed via the link 24 and the arm 23, and the bank 30 is closed. It is configured to be gripped,
The clamp 22 opens and closes in accordance with the vertical movement.

An opening / closing switching mechanism 25 has a function of controlling opening and closing of the clamp 22. That is, the clutch (not shown) of the opening / closing switching mechanism 25 is disengaged or activated when the rectangular frame-shaped bottom plate 27 attached to the lower end thereof is pressed.
When the clutch is disengaged, the opening / closing operation of the clamp 22 is released, and when the clutch operates, the opening / closing operation is restricted and the clamp 22 is fully opened.

[0005] In the case of transporting the bank 30 by grasping the plate surfaces at both ends with the above-mentioned hanging tool 20, a hook 26 is engaged with a hook of a crane (not shown) with the clamp 22 opened, and the hanging tool 20 is attached to the bank. Lower from above 30. Thereafter, when the bottom plate 27 attached to the lower end portion of the opening / closing switching mechanism 25 comes into contact with the upper surface of the bank 30 and is pressed, the clutch of the opening / closing switching mechanism 25 is disengaged, and the opening / closing operation of the clamp 22 is released. When the lifting hand 26 is lifted by the crane in this state,
The clamp 22 is closed via the link 24 and grips the plate surface at both ends of the bank 30. When the plate surface is further lifted, the plate surface is lifted while strongly gripping the plate surface in accordance with the weight of the bank 30 and the load of the hanging tool 20.

When the bank 30 is transported to a desired position in a gripped state, and the suspender 26 is lowered to place the bank 30, the bottom plate 27 is pressed, the clutch of the open / close switching mechanism 25 is operated, and the clamp 22 is fully opened. Is fixed in the state of. At this time, the bank 30 is released from the grip of the clamp 22. Thereafter, the lifting hand 26 is lifted by the crane while the clamp 22 is in the fully opened state, and moves to a position above the bank to be transported next. By repeating this operation, the banks can be sequentially transported to the next step.

However, since the lowest position of the bottom plate 27 of the opening / closing switching mechanism 25 is constant in the above-mentioned hanging device 20, when the plate material width is different and the bank height is changed, the vertical position of the clamp 22, which is the grip portion, is changed. It is easy to damage the plate surface at both ends of the bank. For this reason, the operator has to move the bottom plate 27 and the bank 30
It is necessary to insert a spacer having a desired thickness between the upper and lower surfaces, or to change to another hanging tool. These operations not only take time and effort, but also have safety problems.

Further, the hanging tool 20 is lowered to
When the clamp 22 is not parallel to the plate surface when gripping the plate surface of the bank 30, the angle between the clamp surface and the plate surface can be sufficiently corrected by the resistance between the bank 30 and the bottom plate 27 abutting on the upper surface thereof. However, there is a problem that excessive stress is applied to the corners of the plate surface to cause breakage easily.

Further, the pad of the clamp 22 is used for the bank 3
The pad cushion material 22a is deformed by the pressing force when the printing plate of No. 0 is gripped. At that time, the sheet 22b on the surface is bent and concentrated stress is generated at the lower corner of the clamp 22, thereby damaging the printing plate. There was also a problem that it became easier.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems.
An object of the present invention is to provide a plate material transporting hanger that accurately grasps a plate surface of a bank to be transported and does not damage the plate surface due to localized concentrated stress.

Another object of the present invention is to provide a plate material transporting hanger which does not require any trouble and time for the plate material transport operation, and has high safety.

[0012]

SUMMARY OF THE INVENTION According to the present invention, there is provided a plate material transporting hanger which detects a pressing force of a clamp formed on both sides so as to be openable and closable and a bottom plate disposed at a lower end between the clamps. An opening / closing switching mechanism for controlling the opening and closing of the clamp, wherein the bottom plate is provided so as to be vertically adjustable.

Further, a valve is arranged in a pipe of a vertical hydraulic cylinder with the plate material transporting hanger, and the piston position can be raised and lowered when the valve is open, and the piston position is fixed when the valve is closed. Positioning mechanism
The bottom plate is provided so as to be vertically adjustable.

Further, the plate material transporting hanger according to the present invention comprises a clamp formed on both sides so as to be openable and closable, and a clamp on a bottom plate disposed at a lower end between the clamps to detect opening and closing of the clamp. And a switching mechanism for controlling the opening and closing of the bottom plate, and the bottom plate is provided rotatably in the vertical direction.

[0015] In the above-mentioned plate material transporting hanger, the clamp has a pad whose surface is covered with a sheet, and the sheet is slidably attached in accordance with the deformation of the pad surface. It is characterized by.

According to the above configuration, even if the height of the bank 30 is changed, the holding position can be easily adjusted and held at a desired position, and the pads of the clamp can always hold the plate surfaces at both ends of the bank uniformly. . Therefore, the plate surface is not damaged by local concentrated stress.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on specific embodiments, but the present invention is not limited to these embodiments.

As shown in FIGS. 1 to 3, the appearance of the hanging member 1 for transporting the plate material is similar to that of the above-described hanging member 20. At opposite positions, two pairs of L-shaped arms 3 are rotatably supported at the horizontal portion, and a pair of clamps 4 are attached to the lower end of the vertical portion of the arm 3.

As shown in FIG. 5, the clamp 4 has an elongated channel-shaped main body 4c and a pad having a rubber sheet 4b stretched over a surface of the main body 4c via a cushion material 4a. The upper end of the sheet 4b is fixed to the upper edge of the main body 4c, and the lower end is inserted into a slit of the main body 4c. As a result, the seat 4b is
It reciprocates in the slit in response to the deformation of a, and keeps the surface of the clamp 4 flat.

A horizontal portion of the arm 3 is rotatably supported by the frame 2, and a distal end portion of the arm 3 is connected to a suspender 7 via a crank 5 and an opening / closing switching mechanism 6. This means that the lifting hand 7 is engaged with the hook of the crane and lifted, the load of the lifting tool 1 and the bank 30 is applied to the lifting hand 7, the clamp 4 is closed via the crank 5 and the arm 3, and the bank 3 is closed.
The clamp 4 can be opened and closed as the lifting hand 7 moves up and down.

The opening / closing switching mechanism 6 comes into contact with the upper end of the bank 30 and has a function of controlling the opening / closing of the clamp 4. That is,
The clutch (not shown) of the opening / closing switching mechanism 6 is disengaged or activated when the rectangular frame-shaped bottom plate 8 attached to the lower end thereof is pressed. When the clutch is disengaged, the opening / closing operation of the clamp 4 is released, and when the clutch operates, the opening / closing operation is restricted, and the clamp 4 is fully opened. The open / close switching mechanism 6 is connected to a positioning mechanism 9 capable of adjusting and fixing the bottom plate 8 to a desired position in the vertical direction, and an automatic alignment mechanism 10 capable of rotating the bottom plate 8 around a vertical axis. ing.

The positioning mechanism 9 includes two vertical hydraulic cylinders 11 mounted on the frame 2 and an oil tank 12.
And a hydraulic pipe connecting these components, and a valve 13. Both ends of the self-centering mechanism 10 are connected below the hydraulic cylinder 11 (see FIG. 4). A valve 13 is provided in the piping of the hydraulic cylinder 11,
When the valve is opened, the piston position can be raised and lowered, and when the valve 13 is closed, the position is fixed. The positioning mechanism 9 may be configured to mechanically adjust and fix the position of the bottom plate 8. However, the configuration of the hydraulic cylinder 11 allows the height of the bottom plate 8 to be adjusted steplessly and smoothly so as to be positioned at a desired position. In addition, since the above positioning can be performed only by opening and closing the valve 13, the operation is facilitated and preferable.

The self-aligning mechanism 10 has a rectangular box shape as shown in FIG. 3, and includes a plurality of rotatable balls 10 on its upper surface.
The bottom surface of the support plate 10a to which b is attached is supported by a ball bearing 10c, and the center of the bottom plate 8 is fixed to the center of the support plate 10a via a vertical shaft 10d. A pad 8a is attached to the lower surface of the bottom plate 8. With the above configuration, the bottom plate 8 is rotatable around the vertical axis 10d. When the valve 13 is opened and the cylinder 11 is moved up and down by the positioning mechanism 9, the automatic alignment mechanism 10 and the bottom plate 8 are continuously moved up and down. If the valve 13 is closed at a predetermined position, the bottom plate 8 is held at that position.

Next, the operation of the hanger 1 will be described.

First, the hanger 1 with the clamp 4 fully opened.
Is suspended on a hook of a crane (not shown),
The valve 13 is opened and the bottom plate 8 is lowered to its lower end position by its own weight via the cylinder 11. Then, the clamp 4 is lowered to a desired position while the lifting tool 1 is lowered by moving the lifting tool 1 to a position above the bank 30 to be conveyed by a crane, and the bottom plate 8 abuts on the upper surface of the bank 30 and is gradually pushed up. . After descending to the desired position, the crane is stopped, the valve 13 is closed, and the bottom plate 8 is positioned and held. Since the bottom plate 8 is positioned as described above, the desired holding position can be held by the positioning mechanism even if the height of the bank 30 to be conveyed changes. At this time, the clutch of the opening / closing switching mechanism 6 that has controlled the clamp 4 to the open state is disengaged by pressing the bottom plate 8.

Then, when the hook of the crane is raised, the clamp 4 is closed via the crank 5 and the arm 3, and the plate surface at both ends of the bank 30 is gripped. At this time, if the clamp 4 is not parallel to the plate surface, the self-aligning mechanism 10 operates to correct the entire surface of the pad of the clamp 4 so as to uniformly grip the plate surface. Further, in accordance with the deformation of the cushion material 4a of the pad of the clamp 4, the lower end of the sheet 4b is inserted into the above-mentioned slit to keep the surface of the clamp 4 flat. As a result, even if the clamp 4 grips the plate surface strongly by the crank 5, the plate surface is always evenly gripped and local concentrated stress does not act on the plate surface, so that the plate surface may be damaged or fall off. Absent.

Thereafter, the crane is transported to a desired position,
When the hook is lowered to come into contact with the place where the lower surface of the bank 30 is placed, the clutch of the opening / closing switching mechanism 6 is actuated by pressing against the bottom plate 8, and the clamp 4 shifts to the fully open state and is fixed. Then, if the hook is raised, the clamp 4 waits in a fully opened state. By repeating this operation, the banks can be sequentially transported.

[0028]

As described in detail above, the hanging shell for transferring plate material of the present invention can easily hold the gripping position at a desired position even when the bank height is changed, and the pad of the clamp is Since the plate surfaces at both ends of the bank can be gripped uniformly at all times, there is an effect that the plate surface of the bank to be transported is accurately gripped and the plate surface is not damaged by local concentrated stress.

Further, the plate material transporting hanger has an effect of enabling the plate material transporting operation to be performed safely and without any trouble and time.

[Brief description of the drawings]

FIG. 1 is a plan view of a plate material transporting hanger according to the present invention.

FIG. 2 is a partially cutaway front view of the plate material transporting hanger according to the present invention.

FIG. 3 is a view taken in the direction of arrows (A)-(A) in FIG. 1;

FIG. 4 is a hydraulic circuit diagram of a positioning mechanism.

FIG. 5 is a partially enlarged view of a pad.

FIG. 6 is a plan view of a conventional suspension for transporting a plate material.

FIG. 7 is a front view of a conventional plate material transporting hanger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hanging tool 3 Arm 4 Clamp 6 Opening / closing switching device 7 Hanging hand 8 Bottom plate 9 Positioning mechanism 10 Automatic alignment mechanism 11 Hydraulic cylinder 20 Hanging tool 30 Bank

Claims (4)

[Claims] An opening / closing switching mechanism for detecting the pressing of a bottom plate disposed at a lower end between the clamps and controlling the opening / closing of the clamps; The plate material transporting hanger, wherein the bottom plate is provided so as to be vertically adjustable. 2. A valve is disposed in a pipe of a vertical hydraulic cylinder, and the piston position can be raised and lowered when the valve is open, and the bottom plate is moved up and down by a positioning mechanism that fixes the piston position when the valve is closed. The plate material transporting hanger according to claim 1, wherein the hanging member is provided so as to be adjustable in a direction. 3. An open / close switching mechanism for controlling the opening and closing of the clamp by detecting the pressing of a bottom plate disposed at the lower end between the clamps, the clamp being formed to be openable and closable on both sides, A plate material transporting hanger wherein the bottom plate is provided rotatably in a vertical direction. 4. The clamp according to claim 1, wherein the clamp has a pad whose surface is covered with a sheet, and the sheet is slidably attached in response to a deformation of the pad surface. The hanging material for conveying the plate material described in the above.