JPH0313495A - Sling fitting - Google Patents

Abstract

PURPOSE:To prevent a loading from being damaged due to the bite of tape like bodies and the like and increase the lifting quantity by forming a sling fitting to have the length of transversing the lower face of a lifted loading and fitting sling tape bodies at both ends of a bar like bracket metal for bearing the lower face. CONSTITUTION:A sling fitting 1 has the length of transversing the lower face S1 of a lifted loading W and sling tape bodies 3 are fitted at both ends of a bar like bracket metal 2 for bearing the lower face B1. As the lower face S1 of the lifted loading W is supported by the bar like bracket metal 2, the bow deformation of the lower face S1 caused by the self-weight of the loading W is suppressed, the load lifting quantity at a time is increased, and the lifting efficiency is improved to a great extent. As the bracket metal 2 has the length of transversing the lower face S1, stress acting convergently upon the corners of the loading W by the tape bodies, that is, the bite of the tape bodies 3 at the corners can be positively prevented, and the belt hanging work of the tape bodies 3 can be performed efficiently with the small number of people as they are fitted at both ends of the bracket metal 2.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention reliably prevents damage to the load caused by biting of the string when lifting the load using a string, and also improves the ability to lift the load. This invention relates to a lifting fitting that can increase the quantity.

[Conventional technology]

In recent years, in buildings, base materials such as interior walls and ceilings,
Gypsum board, which has excellent fire retardant and soundproof properties, is often used as a finishing material.
For example, as shown in Fig. 9, a hoisted load W consisting of a large number of stacked gypsum boards (AI) is hoisted using a string-like body such as a sling belt, and the load is loaded onto a truck, etc., unloaded, and the work site is carried out on a floor. Transport, etc. is underway.

[Problem to be solved by the invention]

However, such gypsum board a is heavy and weak in terms of strength, so when lifting it,
The string-like body was bitten at the corner P of the cargo W, causing damage such as a chip at the corner P, deteriorating the product quality. In addition, in order to prevent this damage, some methods have been used, for example, to interpose a patch material made of cardboard or the like into an L shape between the string-like body. It is difficult to align the seat, many workers are required to hang the belt, and work efficiency is poor, and corner protection lacks accuracy.

Furthermore, this method cannot prevent the lower layer of gypsum board a from cracking due to the curved deformation of the lower surface, which occurs when a large amount of gypsum board a is lifted, increasing the lifting amount and improving lifting efficiency. It becomes difficult.

The present invention is based on attaching a string-like body to both ends of a receiving metal fitting that crosses the lower surface of the lifted load and receives the lower surface.
The object of the present invention is to provide a lifting fitting that can prevent damage to a load due to string-like bodies being bitten, etc., and can increase the amount of lift of the load.

[Means to solve the problem]

In order to achieve the above object, the lifting fitting of the present invention has string-like bodies for lifting attached to both ends of a rod-shaped receiving fitting that has a length that crosses the lower surface of the lifted load and receives the lower surface.

Note that the length of the receiving metal fitting is preferably adjustable, and the string-like body is preferably detachably attached to both ends of the receiving metal fitting.

[Effect]

In the lifting fitting configured in this way, since the rod-shaped receiving fitting supports the lower surface of the lifted load during lifting, it is possible to suppress the curved deformation of the lower surface due to the weight of the load, increasing the amount of cargo lifted twice, and improving lifting efficiency. can be greatly improved. In addition, since the receiving fitting has a length that crosses the lower surface, it is possible to reliably prevent the stress that conventionally acts concentratedly on the corners of the cargo due to the string-like body, that is, the biting of the string-like body at the corner, and also Since the string-like body is attached to both ends of the metal fitting, the work of hanging the string-like body on the belt can be done efficiently by a small number of people.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, the lifting fitting 1 has string-like bodies 3.3 for lifting attached to both ends of a receiving fitting 2 that crosses the lower surface of the lifted load W.

In this example, the hoisted cargo W is a horizontally long rectangular gypsum board a.
The load W is lifted by using a crane or the like, for example, by a pair of lifting fittings 1.1 which are hung by a belt along the lower surface S1 and along the opposite side surfaces S2 on the long side l side. be lifted up.

The lifted cargo W is separated from the lower lifted cargo W1 by a separating bar 5.5 arranged in parallel in the direction across the long sides 1 and 12, and stacked up. In this example, the lifting metal fitting 1 is used as the separating bar 5. By using the receiving bracket 2, the number of types of parts can be reduced and the work efficiency of the belt hook can be improved.

In this example, as shown in FIG. 1, the receiving fitting 2 includes a first receiving fitting piece 7 having a rectangular tubular base 6 which is elongated and has a flat rectangular cross section, and a first receiving fitting piece 7 having a rectangular tubular base body 6 which is long and has a flat rectangular cross section. Main part 1 having the same shape
0 is provided with a second receiving metal piece 9 having a stepped base body 13 extending from a small-diameter sub-portion 12 that can be loosely inserted into the inner hole 6A of the base body 6, and the sub-portion 12 is inserted into the inner hole 6A of the base body 6. By inserting into the hole 6A, the receiving metal piece 7.9 is connected in a straight rod shape so that its length can be expanded, contracted, and adjusted.

Note that the receiving metal piece 7.9 is prevented from being removed using a fixing means 15.

The fixing means 15 includes a screw fitting 17 that is screwed into a screw hole provided in the side wall 21 of the base body 6, and a sub-portion 12 of the base body 13.
a horizontally elongated recess 19 recessed along the longitudinal direction of the sub-portion 12 at a height position that matches the screw hole in the side wall 22;
By screwing the tip of the screw fitting 17 into pressure contact with the bottom surface of the oblong recess 19, the receiving fitting 2 can be fixed at an appropriate length across the lower surface S1, and the tip of the screw fitting 17 and the outer end of the oblong recess 19 can be fixed. Removal is prevented by engagement with the edge 19A.

Further, the receiving metal fitting 2 is detachably attached to one end of the string-like body 3 via locking portions 20 provided at each outer end of the base body 6.13.

The locking portion 20 is connected to each inner hole 6A, 13A of the base body 6.13.
It is formed from a pair of hook-shaped locking pieces 26 and 26, which are folded back into a U-shape with the outer end of the base shaft 25 welded inside and extending outward along the longitudinal direction of the receiving metal fitting 2, and the locking Piece 2
A small gap for attachment and detachment of the string-like body 3 is formed between the tip of the folded portion 6 and each outer end of the base body 6.13. Note that the locking portion 20 is formed without protruding from the upper and lower surfaces of the receiving metal fitting 2.

Further, the string-like body 3 has a long belt body 31 in which loop portions 30A are formed at both ends of a base fabric material 30 woven with organic and inorganic fibers having high strength and excellent weather resistance, abrasion resistance, etc. , the locking portion 20 is attached to one loop portion 30A of the belt body 31.
An engaging portion 32 is provided to engage with.

The retaining portion 32 has an engagement pin 33 that is inserted through the loop portion 30A, and the retaining pin 33 has an inner ring 35 that prevents the belt body 31 from shifting laterally by running along both side edges of the loop portion 30A. 35 is fixed, and outer rings 36 and 36 are disposed on the outside thereof to sandwich the locking piece 26 between the inner ring 35 and the inner ring 35.

In addition, in the present invention, the length of the receiving metal fitting 2 refers to the length of the locking part 2.
The length between the string-like bodies, which is the length between the outer ends including 0, and the length between the rising points 0 of the string-like body 3 rising from the receiving metal fitting 2 during hanging, is the length between the outer ends of the hanging load W. It is preferable that the length exceeds the length of the lower surface.

However, by attaching one end of the string-like body 3 to both ends of the receiving metal fitting 2 used as the separating bar 5, and locking the other end of the string-like body 3 to a hook metal fitting 40 suspended from a crane, for example, the belt can be hung. Work is done. In addition, since the receiving metal fitting 2 is laid in advance as a separating bar 5 under the lifted cargo W, the conventional work of inserting a string-like body under the lifted cargo W is unnecessary, and the belt hanging operation can be performed extremely easily.

Furthermore, even when separately inserting the lifting fitting 1 below the lifted cargo W, the insertion work can be easily performed because the receiving fitting 2 is rod-shaped. Furthermore, when lifting a load W to be lifted by a crane, as shown in FIG. 3, the lifting fitting 1 prevents the lower surface s1 from deforming due to the support fitting 2 supporting the lower surface s1 of the lifted load W over substantially its entire length. Moreover, since the length between the string-like bodies exceeds the lower surface, it is possible to reliably prevent the string-like body 3 from being bitten at the W corner of the lifted cargo. Therefore, damage to the lifted load W can be prevented while increasing the lifting amount of the lifted load W, and the belt hook can improve work efficiency.

Further, FIGS. 4 to 7 show other embodiments of attachment of the receiving metal fitting 2 and the string-like body 3.

In FIG.
A locking piece 41 that can be opened and closed at a small interval for attachment and detachment is attached to prevent the string-like body 3 from coming off and improve safety. Also string-like body 3
A square annular engaging portion 32 is attached to the loop portion 30A.

Further, in FIG. 5, the locking portion 20 is formed as a downwardly open cut groove 42 by cutting out the outer end of the receiving metal fitting 2.

Further, as shown in FIG. 6, the string-like body 3
It can also be fixed irremovably by inserting a bolt fitting 43 which is fastened with a nut across the side of the receiving fitting 2, and in such a case, as shown in FIG. A buckle fitting 45A that can be freely engaged and detached between the base fabric materials 30,
45B is preferred.

The lifting fitting 1 can also be used together with a pallet 47 to lift a load W, as shown in FIG.

〔Effect of the invention〕

As mentioned above, the lifting fitting of the present invention has string-like bodies attached to both ends of the receiving fitting that crosses the lower surface of the lifted load.
The lifting amount of the lifted cargo can be increased without causing damage to the lifted cargo, and the belt hook can have many effects such as increasing work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a perspective view showing its usage state, Fig. 3 is a sectional view showing its operation, and Figs. FIG. 8 is an exploded perspective view showing the installed state, FIG. 8 is a side view showing another state of use of the present invention, and FIG. 9 is a side view illustrating the conventional technique. 2-Bracket, 3--string-like body, Sl--lower surface, W
・−・Lifting cargo.

Claims (1)

[Scope of Claims] 1. A lifting fitting comprising a rod-shaped receiving fitting which has a length that crosses the lower surface of a lifted load and receives the lower surface, and a string-like body for lifting is attached to both ends of the rod-shaped receiving fitting. 2. The lifting fitting according to claim 1, wherein the receiving fitting is adjustable in length. 3. The lifting fitting according to claim 1, wherein the string-like body is detachably attached to both ends of the receiving fitting.