JPS594360B2 - Container - Tsuriagesouchi - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for lifting containers.

In general, the dimensions of containers in the width direction are approximately similar, but the dimensions in the length direction vary widely.

Therefore, in recent years, spreaders that can be expanded and contracted in the length direction have been developed as spreaders for containers, and containers having the same corner fittings can be lifted regardless of their type.

However, the above-mentioned corner fittings come in ISO type and sealant type, and the position and shape of the corner fittings are slightly different, so even containers of the same type cannot be lifted with the same lifting device. In order to lift the container, it is necessary to replace the spreader in accordance with the corner fittings of the container, which results in a lot of waste in terms of time and maintenance.

Therefore, as shown in Figure 1, a container lifting device was developed that can be used with both SO-type corner fittings and sealant-type corner fittings.

That is, in this lifting device, a hanging fitting is pivotally attached to the end of a spreader frame (moving frame) a, the hanging fitting is supported by a conical bearing C, and a hydraulic cylinder is attached to the upper end via a lever d. is attached, the hydraulic cylinder e is operated to rotate the hanging fitting, and the conical bearing C is used to swing the hanging fitting so that the hanging fitting can be engaged with the corner fitting of the container. be.

However, with the above-mentioned lifting device, if the conical bearing C or the lower bearing f wears out during use, the spreader frame a must be replaced, and if the lifting fittings are tilted, the Portion g is also inclined, but since the hydraulic cylinder e cannot swing, there are various drawbacks such as a large bending force acting on the hydraulic cylinder O.

The present invention has been made for the purpose of eliminating the above-mentioned drawbacks, and includes a swinging arm having a hanging fitting bearing portion swingably attached to the outer side of a moving frame of a spreader, and a swinging arm having a hanging fitting bearing portion A hanging fitting having an inverted T-shaped neck portion with different lengths on the left and right is provided at the lower end of the hanging fitting so as to be rotatable in the horizontal direction, and an upper end of the hanging fitting is provided with a hanging fitting that swings integrally with the swinging arm. This invention relates to a container hoisting device characterized in that a hoisting fitting installed in such a manner that a hoisting fitting is connected to a cylinder for horizontal rotation.

Embodiments of the present invention will be described below with reference to the drawings.

2 to 4 show one embodiment of the present invention, 1 is a fixed frame of the spreader frame, 2 is a movable frame of the spreader frame, and the four outer corners of the movable frame 2 are used for lifting containers. A hanging device 3 is equipped.

In other words, so as to be able to swing in the width W direction of the container 4,
A swinging arm 6 is attached to the outer upper end of the moving frame 2 via a pin 5, and reinforcing members 7, 8 and hanging fitting bearings 9, 10 are fixedly attached to the swinging arm 6, and the upper hanging fitting bearing 9 is attached to the swinging arm 6. A sump seat 11 is provided on the upper surface of the container to support the load of the container.

A hanging fitting 12 is fitted into the hanging fitting bearing parts 9 and 10 so as to be able to rotate in the horizontal direction, and a nut 13 is screwed into the middle part of the hanging fitting 12 to support the hanging fitting 12 on the seat 11. The lever 14 is attached to the upper end via the key 26.

On the other hand, the lower end of the hanging fitting 12 has different lengths on the left and right sides (t□〈
t2) and an inverted T-shaped neck portion 15 having a partially tapered portion.
will be established.

One end of a rod end bearing 16 is pivotally connected to the tip of the lever 14, and the tip of a hydraulic cylinder 170 rod is attached to the other end of the rod end bearing 16, and the rear end of the hydraulic cylinder 17 is attached to a reinforcing member 8. Frame 1 protruding outward from
Pivotally attached to 8.

A bracket 19 is fixed to the upper end of the frame 18, and a balance device 21 is attached to the bracket 19 so as to adjust the load applied to the tip of the frame 18 by means of a spring 20.

In the figure, 22 is a stopper that also serves as an adjustment liner fixed to the side of the reinforcing members 7 and 8, and prevents the swinging arm 6 from swinging beyond the allowable value, and 23 and 24 are windows for maintenance. , 25 are bolts that firmly connect the reinforcing member 8 and the frame 18.

When lifting the container 4, adjust the length of the spreader according to the length of the container 4 using an appropriate means, and then lift the container 4 using an appropriate means such as a crane.
Place it in the designated position above.

Next, when the spreader is lowered, the hanging device 3 is also lowered together with the spreader.

In this case, the condition of the neck portion 15 at the lower end of the hanging fitting 12 is
Lower it as shown in the figure.

The hanging device 3 descends and the lower end of the neck portion 15 of the hanging device 12 comes into contact with the corner fitting of the container 4.

As the spreader is gradually lowered, a portion of the taper of the neck portion 15 descends while contacting the corner fitting, and the swing arm 6 swings about the pin 5 as a center of rotation, overcoming the force of the spring 20, so that the spreader can be lowered without difficulty.

When the neck portion 15 of the hanging fitting 12 is inserted into the corner fitting, the swinging arm 6 returns to its original neutral state by the force of the spring 20.

Next, the hydraulic cylinder 17 is operated to raise the hanging fitting 12 to 90.
When rotated once, the upper surface of the inverted T-shaped neck portion 15 and the corner fitting engage, so that the container 4 can be lifted.

Thus, the hanging fixture device 3 can be used for both ISO type corner fittings and sealant type corner fittings.

When removing the hanging fitting 12 from the container 4, the hydraulic cylinder 17 is rotated 90 degrees in the opposite direction to the above to return the hanging fitting 12 to its original position, and the connection between the neck portion 15 and the corner fitting of the container 4 is adjusted. When the spreader is uncoupled and the spreader is then raised, the hanging fitting 12 is removed from the container 4.

At this time, the lower hanging bracket bearing 10 serves as a guide.

Next, a procedure for replacing the neck portion 15 of the hanging fitting 12 due to wear will be described.

First, remove the pin 5 and remove the lever 14 and hydraulic cylinder 1.
By removing the pin of the rod end bearing 16 attached to the tip of the rod end bearing 7, and then removing the bolt 25 from the window 23 of the moving frame 2, the swing arm 6, hanging fitting 12, etc. can be pulled out downward.

Furthermore, by removing the pin that pivotally connects the hydraulic cylinder 17 and the frame 18, the hydraulic cylinder 17 can be pulled out from the window 24 in the horizontal direction.

Since the lifting device of the present invention has the above-described configuration, the hanging fittings and the frame are unitized, and the hanging fittings and the hanging fitting bearing can be easily replaced, and even the spreader itself can be replaced or repaired. In addition, because the hydraulic cylinder and swing arm swing together, unreasonable force is not applied to the hydraulic cylinder, which is the case with conventional lifting equipment.
It exhibits various excellent effects.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional lifting device, FIG. 2 is an overall view of a spreader using the lifting device of the present invention, FIG. 3 is a longitudinal sectional view of the lifting device of the present invention, and FIG. 4 3 shows a view in the direction of the ■ arrow in FIG. 1 is the fixed frame of the spreader frame, 2 is the movable frame, 3 is the hanging bracket device, 5 is the pin, 6 is the swinging arm, 9 and 10 are the hanging bracket bearings, 11 is the seat, 12 is the hanging bracket,
13 is a nut, 14 is a lever, 115 is a neck portion, 17 is a hydraulic cylinder, 18 is a frame, and 21 is a balance device.

Claims (1)

[Claims] 1. A swinging arm having a hanging bracket bearing is swingably attached to the outside of the spreader moving frame, and
A hanging fitting having an inverted T-shaped neck portion with different left and right lengths at the lower end is provided on the hanging fitting bearing portion so as to be rotatable in the horizontal direction, and the swinging arm and the hanging fitting are provided at the upper end of the hanging fitting. A container hoisting device characterized by connecting a hoisting fitting and a horizontal rotation cylinder installed so that they can swing together.