JPS6347292A - Hanging fitting - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a lifting device that engages a container with a chain or wire rope attached to a hoist crane or the like for hoisting a container.

[Conventional technology]

Generally, the work of unloading a container used for transporting cargo from a transport vehicle involves engaging a hanging fitting attached to one end of a chain with engaging holes provided at four locations near the corners of the container. The end of the chain is connected to a hoist crane, and the hoist crane is operated to raise the chain and lift the container from the transport vehicle.The hoist crane is then moved to the container storage area, where the chain is lowered and the container is trimmed into position. This is done by placing However, if the cargo in the container is powder or granules and is to be unloaded from the container by free-falling, the entire container is suspended by engaging the hanging fittings in each of the four engagement holes of the container as described above. Instead of lifting the container 26, as shown in FIG. 3, the lifting fittings at the end of the chain 29 are engaged only with the pair of left and right retaining holes 27 on the front side of the container 26, and only the front part of the container 26 is lifted with the hoist crane 28. Container 26 as shown by the two-dot chain line in the figure
A special method is used in which the container 26 is tilted and the powdery cargo is allowed to fall freely through the opening at the rear of the container 26 to be taken out. 33" is a container car, and 34 is its wheels.

The hanging fixture used for the above work has a structure as shown in FIG. That is, in this hanging fixture 30, a connecting hole 33 is bored in the approximate center of a substantially base plate-shaped iron base plate 32, and an iron shaft portion 35 is made to protrude from the bottom end face of the substantially base plate shape. It is constructed by attaching a long piece 6 made of iron to the distal end face of the retainer 6 in a face-to-face manner. 32a is a contact plate portion. To attach the hanging fitting 30 to the elongated hole 27 of the container 26 shown in FIG. 4, rotate the hanging fitting 30 from the state shown in FIG. In this state, insert the long stopper piece 6 of the hanging fitting 30 into the elongated hole 27 shown in FIG.
0 is rotated 906 degrees in the opposite direction to the above and returned to its original position, and the back surface of the elongated retaining piece 6 is brought into contact with the back surface of the peripheral portion of the elongated hole 27 in the side plate 26a of the container 26. As a result, the elongated retaining piece 6 is inserted into the elongated hole 27 as shown by the two-dot chain line in FIG.
, and the hanging fitting 30 is prevented from being removed. Insert the shackle 22 to which the chain 29 is connected into the eye bolt 24 (
When the other end of the chain 29 is lifted using the hoist crane 28, the shaft 35 of the lifting fitting 30 inserted into the long hole 27 of the container 26 is inserted into the long hole 27 of the container 26 in the initial stage. 27, and along with this, the elongated retaining piece 6 moves upward from the state indicated by the two-dot chain line in FIG. 4 and comes into contact with the upper end 27a of the elongated hole 27. Further, when the chain 29 is lifted from this state, the lifting force of the shaft portion 35 is applied to the container 26, and the container 26 is lifted.

[Problem that the invention seeks to solve]

However, in the above-mentioned hanging fitting 30, since the elongated piece 6, the shaft portion 35, and the base plate 32 are integrally constructed, the third
When the container 26 is lifted diagonally by the lifting method shown in the figure, the entire hanging fitting 30 rotates counterclockwise around the axis of the shaft part 35 from the initial state (the chain 2
(This is because the base plate 32 always maintains a vertical state due to the lifting force of 9). As a result, in the initial state, the elongated retaining piece 6 located at the position shown by the two-dot chain line in FIG.
Coupled with the inclination of , it becomes easier to match the elongated hole 27. This tendency increases as the container 26 is lifted further. In such a case, if the container 26 shakes, the hanging fitting 30 may come off from the container 26, which is dangerous.

The present invention was made in view of the above circumstances, and an object of the present invention is to provide a safe hanging fitting that will not become disconnected from the container.

[Means for solving problems]

In order to achieve the above object, the hanging fitting of the present invention is provided with a connecting part connecting the tip of the container hanging fitting on the upper part of the plywood, and a shaft hole is formed in the lower part, and the shaft is inserted into the shaft hole. One end is rotatably fitted, the other end extends perpendicular to the base plate, and with the mutual centers aligned with the end face of the other end, a long hole for lifting the container has approximately the same shape and a retaining length. A locking piece is attached to the shaft, and a locking piece whose width is smaller than the width of the elongated hole for lifting the container is provided on the shaft so as to be movable along the axial direction.

That is, in the hanging fixture of the present invention, the plywood is rotatable around the shaft, so when lifting a container, only the plywood rotates according to the inclination of the container, and the shaft maintains its initial state. . As a result, the long piece that is integral with the shaft maintains its initial state, and even if the container is tilted for lifting with a hoist crane or the like, the lifting fitting will not come off. This is because when a hoist crane lifts a container, the load of the container is applied to the upper surface of the shaft of the lifting fitting, and the upper surface of the shaft is pressed against the long upper end of the container.
For this reason, frictional resistance is generated between the upper surface of the shaft and the upper end of the elongated hole, making it difficult for the shaft to rotate relative to the container. By rotating easily. For this reason, even if a force is applied to the hanging metal in the direction that causes the hanging metal to rotate as it is being lifted by the chain, only the plywood will rotate and the shaft will not. The long piece also does not rotate, and the container does not shift out of its engagement position with the long hole and come off from the long hole.

Next, the present invention will be explained in detail based on examples.

〔Example〕

1 and 2 show one embodiment of the invention. In these figures, reference numeral 1 indicates an iron hanging fixture, and base plate 3. Hanging fixture body with shaft 7 2° bifurcated lever 4. It is composed of a lock block 5.

The base plate 3 is made of a plate-like body having a bearing hole 10 and a connecting hole 11, and the bearing hole IO is formed so that the shaft portion 7 of the hanging fitting main body 2 can be inserted therethrough in a rotatable manner. The inner peripheral surface 10a is finished into a smooth curved surface. The connection between the base plate 3 and the hanging fixture main body 2 is performed as follows. That is, the shaft portion 7 of the hanging fixture main body 2 is inserted into the bearing hole 10 of the base plate 3 from the tip portion 7a side, and the bearing hole 10 is inserted into the smooth portion 7 of the shaft portion 7.
With the nut 12 positioned on the outer periphery of the shaft 7, the nut 12 is engaged and connected to the tip 7a of the shaft 7. In this case, since the shaft portion 7 is loosely fitted into the bearing hole 10, the base plate 3 is rotatable around the shaft portion 7.

The above-mentioned hanging fitting main body 2 includes an elongated piece 6 that is an oval thick plate that has approximately the same shape as the elongated hole 27 of the container 26 shown in FIGS. 3 and 4, and is slightly smaller in size. Stopper long piece 6
A cylindrical shaft part 7 connected to the oval center part and extending at right angles to the elongated locking piece 6, and a box-shaped lever mounting provided approximately in the longitudinal center of this shaft part 7. It consists of section 8.

Screw holes 9 for lever attachment are bored at corresponding positions in the side surface 8a and back surface 8b of the lever attachment portion 8, respectively.

The bifurcated lever 4 includes a pair of support plates 13 that face each other, and a fixed plate 14 that is clamped and fixed to the lower ends of the pair of support plates 13.
and a rod-shaped handle portion 15 extending from the back surface of the fixing plate 14. A protrusion 17 is provided at the opposing lower portions of the pair of support plates 13, and the lock block 5 is swingably attached using the protrusion 17. The lock block 5 has a thick plate portion 18 whose distal end is formed into a protrusion 19 having a semicircular cross section, and engagement holes 20 formed on both sides of the thick plate portion 18 are loosely fitted into the protrusion 17. and is attached to the bifurcated lever 4. The semicircular cross section of the protrusion 19 has approximately the same shape as the semicircular space 27b at the bottom of the elongated hole 27 in the container 26, and has a slightly smaller dimension so that it can easily fit into the semicircular space 27b. It has become. This bifurcated lever 4 is constructed by aligning the mounting holes 16 provided at the upper part of the pair of support plates 13 with the threaded holes 9 of the lever mounting portion 8, and inserting the bolts 21 into the mounting holes 16 to engage the threaded portions 9. , attach the bolt 21 to the hanging fitting main body 2.
It can be attached to rotate freely around the center. The handle 15 of the bifurcated lever 4 is attached diagonally to the support plate 13 so as to form a certain angle, and when the handle 15 hangs down vertically due to its own weight, the lower end of the support plate 13 is directed forward. The lock block 5 attached to the lower part of the support plate 13 is also pushed forward.

Note that 22 is an inverted U-shaped shackle for connecting the above-mentioned hanging fitting 1 to the chain 29, and the upper end of the shackle is connected to the chain 29. A screw hole 23a is provided at the lower end of one side of the inverted U-shape of the shackle 22, and a so-called stupid hole 23b without a screw is provided at the lower end of the other side. Position the upper part of the hanging fitting 1 between them, insert the threaded eye bolt 24 from the hole 23b side, and insert the shackle 22 through the connecting hole 11 of the hanging fitting 1.
It can be hung by aligning it with the screw hole 23a.

The metal fitting 1 and the chain 29 are connected to each other.

The hanging fitting 1 described above is used in the following manner. First, the hanging fitting 1 is connected via the shackle 22 to a chain 29 attached to a hoist crane. Next, pull the handle 15 of the bifurcated lever 4 slightly forward and rotate the bifurcated lever 4 around the bolt 21 to move the lock block 5 back from the long piece 6 side, and in this state, the handle 1
5 to either the left or right around the axis of the shaft portion 7 so that it is horizontal, and the long axis of the elongated stopper piece 6 is directed vertically so that it matches the elongated hole 27 of the container 26 (see Fig. 4). Make it. Next, while maintaining the horizontal state of the handle 15 of the bifurcated lever 4, the hanging fitting 1 is pressed toward the container 26, and the elongated piece 6 is inserted into the elongated hole 27 of the container 26. Next, the handle part 15 is caused to hang downward by its own weight or by applying force. As a result, on the back side of the side plate 26a of the container 26, the elongated retaining piece 6 is placed in a horizontal position as shown by the two-dot chain line (FIG. 4). FIG. 5 shows a side view of this entire state. Then, from this state,
By operating the hoist crane, the hanging fitting 1 is slightly lifted and the upper end surface 7c of the shaft portion 7 is brought into contact with the upper end surface 27a of the elongated hole 27, thereby creating a semicircular space 27b between the lower end of the shaft portion 7 and the lower end of the elongated hole 27. to make. (See Figure 6) Next, the handle I5 is oriented vertically as shown in Figure 7, the support plate 13 is moved forward, the lock block 5 connected to the support plate 13 is moved forward, and the protrusion of the lock block 5 is moved forward. 19 is fitted into the semicircular space 27b formed in the elongated hole 27. The wedge effect caused by the fitting of the semicircular projection 19 into the semicircular space 27b prevents the elongated retaining piece 6 from rotating around the axis of the shaft portion 7, and the hanging fitting 1 is firmly connected to the container 26. do. Also, when the lock block 5 is moved forward, the support plate 1
If the lock block 3 and the lever mounting part 8 can be fixed with bolts or the like, the lock block 5 will never come off, making it even safer.

In addition, when loading and unloading the granular cargo on the container 26 and returning the container 26 to its original state and removing the hanging fitting 1 from the container 26, after lowering the chain 29 a little, move the handle 15 of the bifurcated lever 4 toward you. Pull to lock block 5
and the semicircular space 27b of the elongated hole 27, and then rotate the handle part 15 around the axis of the shaft part 7 to remove the handle part 1.
5 should be horizontal. Then, with the elongated stopper piece 6 and the oval axis of the elongated hole 27 aligned, the hanging fitting 1 is pulled forward and the shaft portion 7 of the hanging fitting 1 is pulled out from the elongated hole 27 of the container 26. This allows the hanging fitting 1 to be easily attached to the container 26.
It can be removed from.

As described above, according to this hanging fitting 1, when lifting the container 26 from one end side to the other end, the long piece 6 prevents the lifting fitting from being pulled out as in the past, and the long piece 6 is connected to the elongated lifting hole of the container 26. 27, so the lifting work can be carried out extremely safely. Furthermore, the work is easy because the hanging fixture 1 can be easily fixed to and unfixed from the container 26 by simply operating the handle 15.

〔Effect of the invention〕

Since the hanging fitting of the present invention is configured as described above, the container and the hanging fitting will not become disengaged during operation. Therefore, safe work can be carried out, and the practical effects are extremely large.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view thereof, Fig. 3 is an explanatory diagram of a state in which a container is suspended by a hoist crane, and Fig. 4 is a long piece that prevents the container from being removed. Fig. 5 is a sectional view showing how the hanging fitting shown in Fig. 1 is attached to the container, and Fig. 6 is an explanatory diagram showing the relationship between the hanging fitting shown in Fig. 1 and the long piece that prevents it from being removed. FIG. 7 is a sectional view showing a state in which the hanging fitting shown in FIG. 1 is attached to a container, and FIG. 8 is a perspective view showing a conventional example.

Claims (2)

[Claims] (1) A connecting part for connecting the tip of the container hanging tool is provided at the top of the base plate, and a shaft hole is formed at the bottom,
One end of the shaft is rotatably fitted into this shaft hole, and the other end extends perpendicularly to the base plate, and when the mutual center is aligned with the end surface of this other end, it is called an elongated hole for lifting the container. A locking piece of the same shape is attached, and a locking piece whose width is smaller than the width of the elongated hole for lifting the container is provided on the shaft body so as to be movable along the axial direction. Hanging hardware. (2) Claim 1, wherein the lock piece is provided at the base of a bifurcated lever, the left and right ends of which are pivotally attached to both left and right sides of the outer peripheral surface of the shaft body. Hanging hardware listed.