JPH0355395B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a positioning device suitable for a hanging tool, particularly a container hanging tool.

[Conventional technology]

Hanging tools for containers are based on Utility Application No. 54-49374.
As shown in Japanese Patent No. 55-151777, the container is lifted by engaging twist lock pins of a lifting tool with four hanging points on the top surface of the container. To engage the four twist lock pins with the four hanging points. Hanging tool positioning devices are provided at four points on the hanging tool.

When alignment is necessary, the alignment device causes the flipper located directly above the hanging tool to protrude downward outside the side surface of the hanging tool so that it can come into contact with the container. If alignment is not required, the flipper is raised and positioned directly above the hanging tool.

As shown in FIG. 1 of the above-mentioned publication, the flipper is driven by a rotary cylinder system in which the flipper is rotated approximately 170 degrees using a rotary cylinder. Furthermore, as shown in FIGS. 2 and subsequent figures, there is a link system using parallelogram links and cylinders.

[Problem that the invention seeks to solve]

The rotating cylinder method described above uses a rotating cylinder and is therefore expensive.

The link method described above is relatively inexpensive, but since the flipper moves up and down almost vertically, the amount of lateral protrusion from the hanger is small.

There are three ways to use the flipper for alignment:

The first method is to raise and lower the hanger with the flipper protruding to the lowest position.

The second method is to project the flipper part way and stop the operation of the flipper, and then lower the hanging tool.
When the flipper hits the container, the lowering of the flipper is resumed, the distance between the pair of flippers is reduced, and the hanging tool is moved laterally to position the lifting tool directly above the container.

The third method is to lower only the two flippers located upstream in the running direction of the trolley that hangs the hanging equipment, and as the trolley runs, the lowered two flippers collide with the container. In this method, the other two flippers are lowered to align the hanger.

However, the second method and the third method are difficult to perform with the devices of the two methods described above.

That is, in the rotating cylinder type, the flipper rotates around the rotating cylinder, so the flipper can protrude laterally. For this reason,
Alignment can be performed using the second method and the third method, but since the output of the rotating cylinder is small, it is practically impossible to use this method. Increasing the output of a rotating cylinder becomes increasingly expensive.

Further, since the lateral protrusion is small in the link method, this second method cannot be practically adopted.

Furthermore, in the third method, it is sufficient if the two flippers lowered in advance hit the container at the same time.
is often located diagonally, so one of the two lowered flippers will often hit first. In this case, the hanging tool oscillates, and alignment cannot be performed until the oscillation stops, reducing cargo handling efficiency.

An object of the present invention is to provide an apparatus that is easy to align and is inexpensive.

[Means for solving problems]

The present invention provides a cylinder device in which the direction of expansion and contraction of the rod is directed in the vertical direction, is provided at each corner of the main body of the hanging tool, and the rod of the cylinder device has an L-shaped horizontal cross section, and each side of the L-shaped rod has an L-shaped horizontal cross section. Each of the L-shaped surfaces is parallel to each side of the rectangular main body of the hanging tool, and a pinion that meshes with each of the racks is rotatably provided on the main body, and each of the pinions has a rack. It is characterized by having a flipper attached.

[Effect]

When the cylinder device is activated, the flipper rotates. Since a cylinder device is used, the configuration can be simplified. Further, since two racks are provided in one cylinder device and each flipper is driven, the strength can be sufficiently increased and cargo handling can be easily performed.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
Positioning devices are installed on the upper surface of each of the four corners of the main body 1 of the hanging tool. A twist lock pin (not shown) is provided at the bottom of the main body 1, and guide rollers 3 are provided on the top surface for inserting the hoist into the ship.

Two flippers 11 are provided at each corner,
They are arranged in orthogonal directions. Each flipper 11 is attached to a part of the pinion 12 by bolts or welding.
is driven by the rack 13, and the flipper 11 is rotated. The rotation axis of each pinion 12 is the main body 1
It is not supported by the bracket 15 on the top surface of the holder. The rotation axis of each pinion 12 is provided parallel to the side surface of the main body 1. Therefore, the rotations are orthogonal to each other. It is necessary for the rack 13 to drive two pinions 12 at the same time, and as shown in the figure, the tooth surfaces of the rack are installed on two mutually perpendicular surfaces (i.e., on the outer surface of each piece of the L-shaped member). Rack 13
is set vertically. The end of the rack is the main body 1
It is connected to the end of the rod of the hydraulic cylinder device 20 installed inside. This causes the rack 13 to move vertically. 17 is the rod and rack 1
This is a bracket that connects 3. The rack 13 is in contact with the guide roller 22 at four points on the top, bottom, left and right on the back side. The guide roller 22 is attached to a bracket 23 erected on the upper surface of the main body 1. Furthermore, two guide rollers 24 are provided which are in contact with the corners between the two rack surfaces of the rack 13. 25 is a bracket for that purpose. Note that the guide roller 24 and bracket 25 are not shown in FIGS. 1 and 2.

In this configuration, when the hydraulic cylinder device 20 is operated to project the rod, the rack 13 is raised and the flipper 11 is lowered as shown. Conversely, when the rod is moved backward, the rack 13 is lowered and the flipper 11 is rotated and raised to fit within the main body 1.

Since a hydraulic cylinder device is used as the driving source for the flipper 11, the driving force can be sufficiently increased, and the second method and the third method can be employed. Moreover, it can be made at low cost.

Further, as shown in FIG. 4, when the hanger is viewed from above, the distance from one end of the flipper to the other end of the flipper in one corner is as follows in the case of the present invention (11a-
11b) is larger than the conventional case of one flipper 11c (11a-11e). For this reason,
When aligning using the third method,
This allows for early alignment. That is, when alignment is performed using the third method, each flipper at the two left and right corners is aligned with the container 30.
It is rare for the flippers 11 to collide with the container 30 at the same time, and as shown in FIG. 4, the flipper 11 at one corner (right side) often collides with the container 30 first. In this case, since the suspension swings due to the reaction force of the collision, alignment cannot be performed until the swing becomes small. However, in the present invention, since the distance between the ends of the pair of flippers is large,
Since the container 30 is located near the end 11b of the other corner (left side) flipper, that is, the container 30 can be easily located within the range of the four flippers, so the shaking stops quickly and the container 30 can be quickly located. It is something that can be matched.

Since racks are provided on each side of the L-shaped member, the two flippers at one corner can be driven by one device, making it possible to reduce the cost. The distance between the two flippers is determined by the distance from the corner of the L-shaped member to the center of the surface of the rack.

Also, since racks are provided on each side of the L-shaped rod, there is a set of rack and pinions on each of the two flippers at one corner, so one rack and pinion drives two pinions. The strength can be increased compared to Therefore, there is no damage or failure even when using the above three methods.

In addition, the cylinder device, which is an important part, is in the main body 1.
It is safe from collisions during cargo handling operations.

〔Effect of the invention〕

According to the present invention, two flippers can be driven by one device, the configuration can be simplified, and a powerful flipper can be obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a positioning device according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a plan view of FIG. 1, and FIG. FIG. 6 is a plan view showing the relative positional relationship between the flipper and the container during alignment. 1...Main body of hanging tool, 11...Flipper, 12...
...Pinion, 13...Rack, 20...Hydraulic cylinder device.

Claims (1)

[Claims] 1. A cylinder device with the rod extending and contracting in the vertical direction is provided at each corner of the main body of the hanging tool, and the rod of the cylinder device has an L-shaped horizontal cross section, and a rack is provided on each surface of the L-shape. each of the L-shaped surfaces is parallel to each side of the rectangular main body of the hanging tool, a pinion that meshes with each rack is rotatably provided on the main body, and a flipper is attached to each of the pinions. A hanging tool positioning device characterized by: