JPH0834589A - Hoisting accessory - Google Patents

Abstract

PURPOSE:To provide a hoisting accessory which can conveniently, rapidly and safely convey a concrete block. CONSTITUTION:A lower jaw 5 is incorporated to the distal end of a long leg 2 of a U-like body 4 while an upper jaw 6 is attached to the distal end of a short leg 3. A concrete block is clamped between the upper and lower jaws 5, 6, and then a sling link 7 connected to the body 4 at a position deviated to the short leg side is pulled up so as to suspend the block. The suspending position of the sling link 7 is adjustable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoisting tool capable of hoisting a suspended object such as a concrete block with one touch, and the suspended object is preferably used for transportation and installation of concrete blocks, particularly wave-dissipating blocks. Is something that can be done.

[0002]

2. Description of the Related Art Conventionally, when loading or unloading a concrete block onto a transport vehicle, laying a block on site, or installing a block, a wire rope is hung on the block and the wire rope is hung on a hook of a crane. It was hanging. This wire hanging requires skill and labor in order to hang the wire properly and safely, and it requires skilled slinging skill to facilitate the recovery of the wire. Safety work was required through close cooperation with engineers, which required time and effort.

In Japanese Utility Model Laid-Open No. 2-135591, a pair of holding portions are formed to extend to one side of a main body having a predetermined length at predetermined intervals, and a hook or the like is provided on the other side of the main body. Disclosed is a suspension fitting having a locking portion.
This suspension fitting is mainly used for lifting and transporting short tubular reinforced concrete blocks, etc., and supports a heavy object by friction between a pair of clamping parts and lifts it at an eccentric position. I am using elastic material, but I have doubts about safety. Further, there is a problem that it is not easy to ensure stability due to the shape of the suspended object.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a hoisting tool that simplifies, speeds up, and secures the work of suspending a concrete block or the like for carrying and installation work. The present invention provides a lifting tool based on the same principle of operation as the above-mentioned prior art, in which all the problems are solved.

[0005]

SUMMARY OF THE INVENTION The present invention was developed to solve the above problems, and one of the suspended objects is attached to the tip of the long leg of an inverted U-shaped body having the long leg and the short leg. A lower jaw that abuts the lower surface of the side surface of the suspended leg, and an upper jaw that abuts the upper side portion of the other side surface of the suspended body at the tip of the short leg. The lower jaw surface and the upper jaw surface are above each other in the U-shape. Facing each other in a V shape, and the U-shaped body is provided with hanging links at a hanging position where the long leg and the short leg hang in a substantially vertical posture and a hanging position biased to the short leg side, respectively. The suspension link that is biased to the short leg side is a suspension tool that is formed so that the suspension position can be adjusted. In this case, the suspended object is suitable for handling concrete blocks, particularly wave-dissipating blocks.

[0006]

The hanging device of the present invention comprises the lower jaw contacting the lower surface of one side surface of the suspended object and the upper jaw contacting the vicinity of the upper side portion of the other side surface of the suspended object with the moment of gravity of the suspended object. Using, to suspend the suspended object with one touch. The lower jaw surface and the upper jaw surface face each other in a V shape, and when the body to be suspended is lifted, the upper and lower jaws use the wedge force to clamp the suspended object, so it is safe without relying on frictional force. Hang on.

In lifting, since the upper and lower jaws are locked against the moment of gravity of the suspended object, the shape of the suspended object,
There is an optimum position for the lifting link depending on its size. According to the present invention, the hanging position of the hanging link can be adjusted according to the condition of the suspended object, so that the range of use can be expanded, the number of hanging tools can be reduced, and the flexibility of work can be ensured. Next, the operation of the lifting tool of the present invention will be described with reference to FIG. (A) The suspending tool 1 is suspended by the sub-wire 12, and is lowered so as to cover the suspended body 10 from above the suspended body 10 as shown by an arrow 21. The suspension link 8 of the sub wire 12 is provided at a position such that both the inverted U-shaped legs 2 and 3 of the suspension 1 are in vertical postures. (B) When the suspending tool 1 is placed on the body 10 to be suspended, the sub wire 1
2 is loosened, the lifting force is moved to the main wire as indicated by arrow 22, and the main wire 11 is lifted. The suspension link 7 for mounting the main wire 11 has a shape of the suspended body 10,
It is installed in the optimum position in advance according to the size. (C) Make sure that the lower jaw 5 of the hanging tool 1 is locked to the side surface on the lower surface side of the suspended body 10, and the upper jaw 6 on the opposite side is engaged with the side surface on the upper surface side of the suspended body 10. (D) As shown by the arrow 23, the main wire 11 is pulled up. The suspended body 10 rises from the ground, and at this time, the center of gravity of the suspended body 10 is outside the engaging portion of the hanging tool 1 and the moment of gravity acting on the suspended body 10 causes the suspended body 10 to move. It is crimped between the upper and lower jaws 5 and 6 and does not fall. (E) When hoisting and removing the hanger, the above procedure may be reversed.

[0008]

EXAMPLE FIG. 1 shows an example of the present invention. The suspender 1 of the embodiment has two U-shaped steel plates facing each other and connected by a large number of bolts and nuts 15 to have a high rigidity, and has long legs 2 and short legs 3 and has an inverted U-shape. At the lower end of the long leg 2, a lower jaw 5 that comes into contact with the lower surface of the side surface of the body to be suspended is provided.
The lower jaw 5 has a shape that matches the shape of the lower surface of the side surface of the suspended object. FIG. 1 has a chevron shape that is in close contact with the protrusions of the wave-dissipating block so as to be in close contact with each other so as to be most suitable as a hanging tool for the wave-dissipating block as shown in FIG. An upper jaw 6 is provided at the lower end of the leg portion 3. The upper jaw 6 and the lower jaw 5 are provided so as to face each other on the inner surface side of the inverted U-shape, and both of them face each other in a V-shape. The V-shaped included angle θ may be appropriately determined according to the object to be suspended. In the U-shaped body 4 of the hanging device 1, the hanging links 7, 8 are provided.
Is installed. The suspension link 8 is for attaching the sub wire 12, and is provided at a position where the long leg 2 and the short leg 3 are in a substantially vertical posture when the suspending tool 1 is suspended.

The suspension link 7 is for attaching the main wire 11 and is biased toward the short leg 3 side from the suspension link 8. The suspension link 7 is attached to the U-shaped body 4 by the attachment member 13. The mounting position can be changed according to the suspended object. That is, the suspension link 7 is connected to the main wire 11
In the inverted U-shaped main body, the long leg 2 moves below the short leg 3 and the suspended body is held between the upper jaw 6 and the lower jaw 5 by its own weight. For this holding, it is necessary to properly incline the hanger according to the size of the suspended object. Therefore, in the embodiment, a large number of holes 14 for attaching the attachment member 13 of the suspension link 7 to another position are provided.

As shown in the operation example of FIG. 2, the lifting tool of the embodiment can safely and reliably hoist and carry the wave-dissipating block and perform on-site construction with one touch.

[0011]

EFFECTS OF THE INVENTION Since the hoisting tool of the present invention is constructed as described above, the suspended object can be safely and reliably hoisted and transported by one operation.
It can be used for installation work, and contributes to streamlining and labor saving by improving work efficiency, block damage prevention, wire rope damage prevention, and so on.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is an explanatory view of the operation of the lifting tool of the present invention.

[Explanation of symbols]

1 Suspension Equipment 2 Long Leg 3 Short Leg 4 U-Shaped Body 5 Lower Jaw 6 Upper Jaw 7,8 Suspension Link 10 Suspended Body 11 Main Wire 12 Sub Wire 13 Mounting Member 14 Hole 15 Bolt Nut 21, 22, 23
Arrow

Claims (1)

[Claims] 1. An inverted U-shaped body having a long leg and a short leg is provided with a lower jaw at the tip of the long leg, which abuts against the lower surface of one side surface of the suspended body, and the other side surface of the suspended body is attached to the tip of the short leg. An upper jaw that abuts in the vicinity of the upper side portion of the upper jaw, and the lower jaw surface and the upper jaw surface are the above U
Within the letter, they face each other in a V-shape, and the U-shaped body is
Suspension links are provided at the suspension position where the long legs and the short legs hang in a substantially vertical posture and at the suspension position biased to the short leg side, and the suspension links biased to the short leg side are formed so that the suspension position can be adjusted. A hanging tool that is characterized by