JP3227806U - Sling equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slinging device which prevents bolts and nuts of slinging parts from being accidentally dropped or lost during slinging work.
SOLUTION: Two male screws 2 are provided at one end of a C-shaped metal fitting 1, a jaw 6 is provided at the lower end of a connecting shaft 4 supported by a pin 5 on the other end, and the male screw 2 is tightened. A tubular nut 3 provided with a female screw is attached so that it can slide and rotate. When slinging, the tubular nut 3 is loosened, the connecting shaft 4 is folded inside the hardware 1, and the wire and fiber sling are attached to the hardware 1. , Turn the tube nut 3 and screw it in, fasten the connecting shaft 4 to the male screw 2, and fasten the wire and fiber sling with the hardware 1 that has become an O-shaped ring.
[Selection diagram] Fig. 1

Description

The present invention relates to a slinging device for slinging a wire or fiber sling on a suspended load in a lifting operation using a crane.

As shown in FIG. 2, in the conventional slinging operation using a shackle, the nut of the bolt inserted into the shackle is loosened and then removed, the bolt is pulled out, and a wire and a fiber sling are hung. During this slinging operation, the nuts and bolts are held in the hand and the wires and fiber slings are turned to the suspended load to sling or remove the sling. Since the bolts and nuts were separated from the shackle, there was a risk of accidental dropping or loss.

In the lifting work using a crane as a means of moving equipment and products in construction, manufacturing, and distribution, slinging work is performed on the upper part of the equipment and products, so slinging equipment that does not remove bolts and nuts is required.

Utility model registration No. 3169788 Patent Registration No. 6059386

When using wires and fiber slings in lifting work using a crane as a means of transporting equipment and products in construction, manufacturing, and distribution, by using slinging equipment that does not drop sling parts, safe sling that does not damage the product You can work.

A groove is provided on the outer periphery of the shackle pin shown in Patent Document 1 to prevent the shackle pin from falling off by fitting an O-ring. The diameter must be increased. Furthermore, the diameter of the pin hole of the shackle becomes large, the entire shackle becomes heavy, and workability deteriorates.

When slinging a wire with the shackle shown in Patent Document 2 as shown in FIG. 2, the nut and bolt of the shackle are removed and then the wire is hung or removed. At this time, the shackle, nut and bolt are It is in the state of being held in the hand, and bolts and nuts are accidentally dropped or lost during the slinging work.

The present invention focuses on the conventional problems, and an object of the present invention is to provide a slinging machine having a structure in which parts are not separated so that parts are not dropped or lost during slinging work.
In the present invention, two male screws are provided at one end of a C-shaped metal fitting, a jaw is provided at the lower end of a connecting shaft supported by a pin on the other end, and two female screws are provided to be tightened to the male screw. The tubular nut is slidably and rotatablely attached, and when slinging, the tubular nut is loosened, the connecting shaft is folded inside the metal fitting, a wire and a fiber sling are hung on the metal fitting, and the tubular nut is hooked. Turning screwing The structure is such that the wire and fiber sling are fastened with the hardware that has become an O-shaped ring by fastening the connecting shaft to the male screw, and the tubular nut is twice as fast without removing the bolt and nut. A slinging device characterized by tightening and loosening.

A vertical groove is provided in the two male screws at one end of the C-shaped hardware, and when building materials, surrounding foreign matter, and dust enter the male screw and the cylinder nut, the cylinder nut is turned. A slinging machine that falls from the vertical groove and eliminates the hindrance to slinging work caused by foreign matter and dust.

The slinging work performed in construction and high-altitude work is dangerous, and the structure in which the bolts and nuts do not separate in the construction that should not cause a fall accident does not cause dropping or loss, and safe slinging work can be performed.

At the manufacturing factory, careful work is required to move and transfer the finished product, and it is possible to prevent damage to the product due to dropping of parts related to slinging work.

In order to operate the crane efficiently, which is required for lifting materials, the time required for ball hooking and ball removal is important, and it can be tightened and loosened quickly with the double-threaded screw of the cylinder nut without removing the bolts and nuts. , Slinging work can be done efficiently.

FIG. 1 (A) elevation of slinging machine, partial cross-sectional view, and (B) cross-sectional view of a tubular nut. Figure 2 is an imaginary view of a sling using a conventional shackle. FIG. 3C is a male thread notch view at the end of the hardware, and FIG. 3D is a plan view. FIG. 4 (E) is a perspective view of a double-threaded male screw at the end of a hardware, and (F) is a plan view of a double-threaded male screw. FIG. 5 (G) is an enlarged view of the pin support portion of the connecting shaft, and (H) is an elevational view of the pin support portion of the connecting shaft. FIG. 6 is an imaginary view of a sling of a fiber sling.

By slinging and removing the slinging work, the slinging work can be done without separating the parts of the slinging machine, so a safe slinging machine that does not drop or lose parts has been realized.

Two male screws of the two-threaded screw shown in FIG. 4 are provided at one end of one C-shaped metal fitting shown in FIG. 1, and at the lower end of a four-connecting shaft supported by five pins on the other end. A 3-cylinder nut with 2 threads, which is provided with 6 jaws and tightened to the 2 male screws, is slidably and rotatably attached.

8R processing is performed only on the inside of the 1 metal fitting so that the movement of the 4 connecting shafts supported by 5 pins at one end of the 1 metal fitting shown in FIGS. 5 (G) and 5 (H) can be bent only inward. , Support part with a structure that does not break on the outside.

When slinging, loosen the 3-cylinder nut, open the frontage of the 4-connecting shaft inside the 1-metal fitting, hang a 34 wire or 38 fiber sling on the 1-metal fitting, and put your finger on the 7 protrusions of the 3-cylinder nut. A slinging machine that fastens 34 wires and 38 fiber slings with the above-mentioned 1 hardware that is hung and tightened to form an O-shaped ring.

Nine grooves are vertically provided in the two male screws provided at one end of the C-shaped metal fitting shown in FIGS. 3 (C) and 3 (D), and materials, building materials, surrounding foreign substances, and dust can be removed. A slinging machine that is removed from the 9 grooves when it enters the 2-male screw and the 3-cylinder nut to reduce the hindrance to slinging work.

A slinging machine that can be used for slinging work on the outer circumference of a building construction site and on scaffolding, because parts do not separate, so there is no risk of falling, and safe lifting work can be performed without disturbing the surroundings.

A slinging machine that can maintain the quality of the finished product without dropping parts when lifting the finished product at the manufacturing factory.

1, hardware 2, male screw 3, tubular nut 4, connecting rod 5, pin 6, jaw 7, protrusion 8, R processing 9, groove 10, split pin 21, 2-thread male screw (1) 22, 2-row male screw (2)
31, shackle 32, bolt 33, nut 34, wire 35, hook 36, material 37, rootstock 38, fiber sling

Claims (2)

A tubular nut with two male screws on one end of a C-shaped hardware, a jaw on the other end of a connecting shaft supported by a pin, and two female screws to tighten the male screw. With a structure in which the screw is slidably and rotatably attached, the double-threaded screw is tightened and loosened twice as fast without removing the bolts and nuts. The slinging device according to claim 1, wherein a vertical groove is provided in the male screw at one end of the hardware, and foreign matter, dust, etc. caught in the male screw and the female screw are removed through the vertical groove.

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