JPH048145Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is a hanging device for hoisting cargo onto a crane.
In particular, it relates to a hanging device for hanging bag cargo stacked on pallets.

(Prior Art) As a hanging device exclusively for bag cargo stacked on a pallet, a device as shown in FIG. 6 has conventionally been used. That is, the hanging tool includes a hanging tool main body 51 formed in a cross shape, a slinging wire rope 53 that is fixed to four places on the upper surface of the hanging tool main body 51 and converged in a ring 52, and a tip of the hanging tool main body 51. It consists of hooks 54 provided at four locations. The ring 52 is hung on the hook 56 of the hoisting hook device 55, and the hoisting H tool is suspended from a crane (not shown) via the hoisting wire rope 57. On the other hand, the pallet 58 is hung on the hook 54. A sling belt 60 is hung over the bag cargo 59 stacked on top, and cargo handling work is performed by winding the hoisting wire rope 57.

However, with such conventional hoisting equipment, the height of the entire hoisting equipment becomes significantly high, and the hoisting lift is reduced and loading efficiency deteriorates, especially in the holds of reefer ships where hoisting height is limited. There was a problem. Furthermore, when the hoisting lift is small, the length of the sling belt slinging the cargo must be adjusted, making the slinging work complicated.

(Purpose of the invention) The present invention was made in view of the problems of the prior art described above, and it aims to reduce the overall height of the hanging device as much as possible.
The purpose of the present invention is to provide a sling that enables slinging work in which the gap between the sling and the cargo is kept as small as possible, increases cargo loading efficiency, and significantly improves slinging workability and safety.

(Structure of the invention) The above purpose is to provide a support plate with a through hole in the center, extend a sling frame in a cross shape from the support plate, and attach a sling belt to the upper surface of each of the sling frames. A plurality of locking pieces for hanging are provided continuously in the longitudinal direction of the hanger frame at regular intervals from the through hole, and a hanger bolt is inserted into the through hole of the support plate from below. The head is seated on the support plate via a thrust bearing with an alignment washer, a trunnion is attached to the tip of the hanger bolt extending upward, and a sheave for winding a hoisting wire rope is attached to both ends of the trunnion. A compression coil spring is interposed between the support plate and the trunnion, and the compression coil spring biases the support plate and the trunnion in a direction that separates them from each other.
In addition, the length of the hanger bolt is set to a size that minimizes the gap between the support plate and the trunnion, thereby omitting the conventional ring-attached wire rope and substantially omitting the hook in the crane. This is achieved by means of a sling designed to reduce the overall height.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

In FIGS. 1 to 4, reference numeral 1 designates a disk-shaped support plate having a through hole 2 formed in the center thereof, and a tube member 3 is fixed to the side surface of the support plate so as to surround the support plate 1. From the circumferential surface of the pipe member 3, hanger frames 4, 4... are extended in a cross shape in four directions to equally divide the circumferential direction.
Furthermore, the hanging frame 4 is attached to the upper and lower ends of the pipe member 3.
Two reinforcing plates 4', 4' are fixedly attached to the base of the holder. The above-mentioned components constitute a hanging tool frame 5, and on the upper surface of each of the hanging tool frames 4, a plurality of locking pieces 6 are continuously arranged at regular intervals from the center of the hanging tool main body 5. , 6 . . . are provided in a protruding manner, and a pair of hooks 8 equipped with a wire retaining device 7 are provided facing each other between the reinforcing plates 4', 4'.

On the other hand, a hanger bolt 9 is inserted into the through hole 2 of the support plate 1 from below. is seated. A small diameter portion 9b and a male threaded portion 9c following the small diameter portion 9b are formed at the tip of the hanger bolt 9 that extends upward through the support plate 1, and the small diameter portion 9b
A trunnion 13 is fixed to the trunnion 13 by a nut 12 that is screwed into the male threaded portion 9c. In addition,
A groove 12a is integrally formed in the nut 12, and a cotter pin 14 is inserted into the saw groove 12a and a hole drilled in the male threaded portion 9c of the hanger bolt 9 to prevent the nut 12 from loosening. ing.

15, 15 are sheaves pivotally connected to both ends of the trunnion 13 via ball bearings 16;
A hoisting wire rope 57 for a crane is wound around the sheave 15. Also, sheave covers 17, 17 are attached to both ends of the trunnion 13, with the portions through which the wire rope 57 passes cut out.

A compression coil spring 18 is inserted through the hanger bolt 9 and is installed between the support plate 1 and the trunnion 13 via pedestals 19, 19. The compression coil spring 18 is used to prevent the hanger frame 4 from swinging unstably when no load is applied, and presses the support plate 1 against the head of the hanger bolt 9 to stabilize it.

In addition, in the hanging tool configured in this way, the hanging tool main body 5 can turn around the hanger bolt 9, and no unnecessary bending load is applied to the hanger bolt 9. Further, the length of the hanger bolt 9 is set to a size that keeps the gap between the trunnion 13 and the support plate 1 as small as possible within a range that does not hinder the rotation of the sheave 15.

With this configuration, in order to carry out cargo handling work on the bag cargo 59 stacked on the pallet 58 as shown in FIG. Hang it at the desired position on piece 6. Next, by driving the hoisting device of the crane (not shown) and winding up the hoisting wire rope 57, the bag cargo 59 is suspended by the crane pallet by pallet 58.
Thereafter, the crane is moved and moved as appropriate to unload the cargo at the desired location. In this case, the locking pieces 6 on the sling frame 4 are selected such that the gap between the sling frame 4 and the top surface of the bag cargo 59 is as small as possible.
Please use the appropriate one depending on the height.

Further, normal work of slinging luggage can be performed by using the hooks 8 provided on the reinforcing plate 4'.

Therefore, in the lifting device constructed as described above, the wire rope 53 for hanging the ring 52 and the hook 56 of the hook device 55 in the crane, which were indispensable in the past, can be omitted, and the overall height is reduced accordingly, making it easier to lift. Cargo handling work can be carried out efficiently even in places where height is restricted.

Next, a fifth hanging device, which is another embodiment of the present invention, is shown.
This will be explained based on the diagram. Components that are the same as those shown in FIG. 1 are designated by the same reference numerals, and their explanations will be omitted. The feature of this embodiment is that the locking piece protruding from the upper surface of the hanger frame 3 is a saw-blade-shaped locking piece 26.

Thereby, the sling belt 60 slung over the bag cargo 59 can be hung on the locking piece 26 in a more appropriate state, and the slinging workability and cargo handling efficiency are further improved.

(Effects of the invention) As described above in detail, the hanging device according to the present invention has a hanging device frame provided with a locking piece for locking a sling belt in a cross shape on the support plate, and This is a rotatably supported trunnion with a sheave in the center around which the crane's hoisting wire rope is wound.This makes it possible to omit the ring-attached wire rope and the crane's hook, which were previously indispensable. This makes it possible to reduce the overall height of the sling from the bottom of the sling frame to the top of the sheave cover as much as possible, and as a result, loading efficiency is significantly improved even in locations where lifting height is limited. It worked.

In addition, the sling belt slung over the cargo can be locked from the top of the sling frame, and the desired locking piece can be selected depending on the height of the cargo, so the gap between the bottom of the sling frame and the top of the cargo can be minimized. This has the effect of improving loading efficiency. Moreover, the length of the sling belt can be adjusted with a single touch by simply selecting the desired locking piece, and sling work efficiency has been significantly improved. In addition, the main body of the hanger can be rotated, improving slinging workability.Furthermore, the use of a compression coil spring and thrust bearing with an alignment washer stabilizes the hanger, and eliminates unnecessary bending loads on the hanger bolt itself. did not work, and the effect of improving safety was obtained.

[Brief explanation of drawings]

Fig. 1 is a front view showing an example of the structure of the hanging device according to the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a sectional view along the - arrow direction in Fig. 2, and Fig.
The figure is a sectional view showing the structure of the main part of the present hanging device, Figure 5 is a front view showing the structure of a hanging device which is another embodiment of the present invention, and Figure 6 is a diagram showing the structure and usage of a conventional hanging device. FIG. DESCRIPTION OF SYMBOLS 1... Support plate, 2... Through hole, 4... Hanging tool frame, 6, 26... Locking piece, 9... Hanger bolt, 9a... Head of hanger bolt, 11... Thrust bearing, 13 ...Trunion, 15...
... Sheave, 18 ... Compression coil spring, 57 ... Wire rope for hoisting, 60 ... Sling belt.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A support plate with a through hole in the center is provided, a hanging frame is extended in a cross shape from the support plate, and a cargo A plurality of locking pieces on which a sling belt is hung are continuously protruded in the longitudinal direction of the hanger frame at regular intervals from the through hole, and a hanger is inserted into the through hole of the support plate from below. A bolt is inserted and its head is seated on the support plate via a thrust bearing with an alignment washer, a trunnion is attached to the tip of the hanger bolt extending upward, and a trunnion is attached to both ends of the trunnion for hoisting the crane. A sheave around which a wire rope is wound is pivotally connected, a compression coil spring is interposed between the support plate and the trunnion to urge them apart, and the length of the hanger bolt is set to the support plate and the trunnion. A hanging device characterized in that the dimensions are set so that the gap between the plate and the trunnion can be kept as small as possible. (2) The hanging tool according to claim 1 of the utility model registration claim, characterized in that the locking piece is formed in the shape of a saw blade.