JPH03128892A - Automatic adjusting hoisting accessory - Google Patents

Abstract

PURPOSE:To hoist a lifted load with a hoisting drum to prevent the addition of a large force to a pin and make double-sided plates thin and light-weighted by boring lifting holes in the upper parts of the double-sided plates, mounting a ring hoisting drum between the upper parts of the double-sided plates to communicate with the lifting holes of the double-sided plates, and mounting a pin between the lower parts of the double-sided plates. CONSTITUTION:A lifting rope R is wound on a hoisting drum 3 between the upper parts of double-sided plates 1, both the ends of the lifting rope are engagingly locked by a lifted load situated downward of the hoisting drum, and a pin 4 is disposed between the lower parts of the double-sided plates 1 between both left and right side parts of the lifting rope R laid between the hoisting drum and the lifted load. When the lifting end of a lifting machine is engaged with lifting holes 2 of a hoisting accessory in this state, and the lifting end of the lifting machine having the hoisting accessory suspended is raised, the hoisting accessory is moved upward of the center-of-gravity position of the lifted load in accordance with the addition of the load of the lifted load to the lifting rope, the lifting rope is wound on and fixed by the hoisting drum 3 of the hoisting accessory, and the hoisting accessory is slightly rotated around the hoisting drum 3 to bring the pin of the hoisting accessory into contact with either of the left and right side parts of the lifting rope between the hoisting drum of the hoisting accessory and the lifted load, and the lifted load is horizontally brought up.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a hanging tool that is attached to the lifting end of a lifting machine, such as a hook, when a suspended load is slung and lifted by a lifting machine such as a crane.

Furthermore, the present invention relates to a self-adjustable lifting device that horizontally lifts a suspended load by arranging the lifting position of the lifting end of the lifting machine above the center of gravity of the suspended load.

<Prior art> The self-adjustable hanging device disclosed in the first prior art publication No. 14473/1980 has two horizontally long side plates arranged in front and back, and a circular shape is attached to one end of each side plate. A hanging hole is provided through the plate, an annular wrapping body is installed between one end of both side plates in communication with the hanging hole of both sides, and two pins are inserted between the other end of both side plates. They are installed separately above and below.

When using this hanging device, wrap the wire lobe sling once around the wrapping body between one end of both side plates, and connect one end of the sling to the two pins between the other ends of both side plates. The cables are passed through the cables and both ends of the suspension cables are secured to both ends of the suspended load.

In this state, when a crane hook is inserted into the hanging hole of the hanging device and the hook with the hanging device is raised, the lifting device moves to the center of gravity of the hanging load as the load of the hanging load is applied to the hanging rope. The hanging rope moves upward and is fixed by being wrapped around the wrapping body of the hanging tool, and the hanging rope comes into contact with one of both pins of the hanging tool, and the hanging load is lifted horizontally.

The self-adjustable hanging tool disclosed in JP-A-1-110495 has two horizontally long side plates arranged in front and back, a hanging hole penetrated through the center of both side plates, and Attach the winding cylinder between the central parts of the winding cylinder so that it communicates with the hanging holes on both sides, and install pins between the left and right ends of both sides, so that both the left and right pins are in symmetrical positions with respect to the winding cylinder. It is placed.

When using this hanging device, wrap the wire rope sling once around the wrapping body between the centers of both side plates, and pass both ends of the sling rope past the upper position of the pin between each end of both side plates. and lock both ends of the hanging rope to both ends of the suspended load.

In this state, when a crane hook is inserted into the hanging hole of the hanging device and the hook with the hanging device is raised, the lifting device moves to the center of gravity of the hanging load as the load of the hanging load is applied to the hanging rope. The hanging rope moves upward and is fixed by wrapping around the wrapping body of the hanging tool, and the hanging rope comes into contact with both pins of the hanging tool, and the hanging load is lifted horizontally.

<Problems to be Solved by the Invention> However, in the above-mentioned conventional re-automatically adjustable hanging device,
A suspended load is suspended by the suspension body and pin of the hanging device via a hanging rope, and a large force is applied to the wrapping body and pin of the hanging device, and a large force is applied to both side plates of the hanging device.

Therefore, both side plates of the hanger must have strength to withstand a large force, and are thick and heavy.

That is, conventional re-adjustable slings are heavy and expensive.

Additionally, in conventional re-adjustable slings, the sling rope wire lobes are bent sharply by the pins, resulting in a short lifespan.

Furthermore, in conventional self-adjustable lifting equipment, if the distance between the center of gravity of the hanging load and the hanging position is shorter than the distance between the wrapping body of the lifting equipment and the center of the pin, the lifting equipment will adjust the center of gravity of the hanging load. It does not move accurately above the position and the suspended load does not lift horizontally.

That is, the distance between the winding body of the hanging tool and the center of the pin is long, and the range in which the suspended load is not lifted horizontally is wide.

An object of the present invention is to solve the conventional problems as described above.

Means for Solving the Problems The inventors of the present invention have focused on the fact that the problems with the above-mentioned conventional hanging tools are due to the fact that the load is suspended by the wrapping body of the hanging tool and the pins. He came up with the idea of suspending the load using the wrapper around the sling.

That is, in the present invention, two side plates are arranged in front and back, a hanging hole is provided in the upper part of both side plates, and an annular wrapping body is connected between the upper parts of both side plates to the hanging hole of both side plates. This is a self-adjustable hanging device characterized by having a pin attached between the lower parts of both side plates.

In addition, the present invention has two side plates arranged in front and back, hanging holes penetrating through the upper parts of both side plates, and an annular wrapping body between the upper parts of both side plates communicating with the hanging holes of both side plates. This is a self-adjustable hanging device with a pin attached between the lower parts of both side plates, and a hanging rope is wound around the wrapping body between the upper parts of both side plates. This is a self-adjustable hanging device characterized in that a pin is disposed between the lower portions of both side plates between the left and right sides of the hanging rope that is hooked to the winding trunk and the suspended load.

Function> When using the self-adjusting hanging device of the present invention, the hanging rope is wound around the wrapping body between the upper parts of both side plates, and both ends of the hanging rope are locked to the hanging load located below the wrapping body. , a pin between the lower parts of both side plates is placed between the left and right sides of the hanging rope that is stretched between the winding trunk and the hanging load.

Then, in this state, when the lifting end of the lifting machine is engaged with the hanging hole of the hanging tool and the lifting end of the lifting machine with the hanging tool is raised, as the load of the lifting load is applied to the hanging rope, The sling moves above the center of gravity of the load, the sling rope wraps around the sling and is fixed, and the sling rotates slightly around the sling to tighten the pin of the sling. The suspended load is lifted horizontally by contacting one of the right and left sides of the hanging rope between the wrapping body of the tool and the suspended load.

<Effects of the Invention> In the self-adjusting hanging device of the present invention, the load is suspended by the wrapping body and no large force is applied to the pins, so no large force is applied to the side plates, and both side plates can be made thin and thin. It can be made lighter.

Therefore, the self-adjusting hanger of the present invention is lightweight and inexpensive.

In addition, in the self-adjusting hanger of the present invention, the hanging line has a long lifespan because it is not bent sharply by the pin.

Furthermore, in the self-adjusting lifting device of the present invention, when the distance between the center of gravity of the hanging load and the hanging position is shorter than the radius of the wrapping body of the lifting device, the lifting tool is positioned above the center of gravity of the hanging load. It does not move accurately and the suspended load does not lift horizontally. However, the radius of the wrapping body of the hoist is shorter than the distance between the wrapping body and the center of the pin in conventional products, so the suspended load cannot be lifted horizontally. The range is narrow.

<Example> As shown in Figs. 1, 2, and 3, the self-adjustable hanging device of this example has two vertically long side plates l of the same shape arranged one behind the other,
A circular hanging hole 2 is provided through the upper part of the left-right symmetrical side plates 1, and an annular wrapping cylinder 3 is inserted between the upper parts of the both side plates 1, as shown in FIGS. 2 and 3. It is attached so as to communicate concentrically with the hanging hole 2 of the plate.

As shown in FIGS. 4 and 5, between the lower parts of both side plates 1,
A pin 4 is attached to a position directly below the center of the winding cylinder 3, and an annular collar 5 is loosely fitted onto the pin 4.

As shown in FIGS. 4 and 5, thin auxiliary bins 6 are attached between the left and right sides of the upper end of both side plates 1, respectively.

When using the self-adjustable hanging device of this example, as shown by the chain line in FIG. 4, the wire rope sling R is wound once around the winding trunk 3 between the upper parts of both side plates 1, and as shown in FIG. 6. As shown in
The lower part of both side plates L is attached between the left and right sides of the hanging rope R, which is hooked to both ends of the hanging load W located below the wrapped trunk 3, and is stretched between the first wrapped trunk 3 and the hanging load W. Place pin 4 in between.

Then, in this state, a hook H of a crane or the like is inserted into the suspension hole 2 of the self-adjusting type hoist, and when the hook H with which the self-adjusting type hoist is suspended is raised by the lifting operation of the crane or the like, the hanging rope As the load of the hanging load W is applied to R, the self-adjusting type sling moves above the center of gravity of the hanging load W, and the hanging rope R is wrapped around and fixed around the wrapping body 3 of the self-adjusting type sling, and , the self-adjusting type hoist rotates a little around the wrapping body 3, and the pin 4 of the self-adjusting type hoist connects the wrapping body 3 of the self-adjusting type hoist and the hanging load W via the collar 5. The suspended load W is lifted horizontally by contacting either the left or right side portions of the hanging rope R between the two.

In the self-adjusting hanging device of this example, the hanging load W is suspended by the wrapping body 3, and no large force is applied to the pin 4, so no large force is applied to the side plates l, and both side plates l are made thin. It can be made lighter.

Furthermore, the wire lobes of the hanging rope R are not bent sharply by the pins 4, so they have a long life.

Furthermore, if the distance between the center of gravity of the suspended load W and the hanging position is shorter than the radius of the wrapping body 3 of the self-adjusting type hoist, the self-adjusting type hoist will be positioned precisely above the center of gravity of the suspended load W. It does not move and the suspended load W is not lifted horizontally, but since the radius of the wrapper body 3 of the self-adjusting lifting tool is short, the range in which the suspended load W is not lifted horizontally is narrow.

[Brief explanation of the drawing]

FIG. 1 is a front view of a self-adjusting hanger according to an embodiment of the present invention. FIG. 2 is a side view of the self-adjusting hanger of the same example. FIG. 3 is an end view taken along the line ■--■ in FIG. 1. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 2. FIG. 5 is a sectional view taken along the line v--v in FIG. 1. FIG. 6 is a front view of the same example of the self-adjustable suspension in use. l: Side plate 2: Suspension hole 0

Claims (1)

[Scope of Claims] 1) Two side plates are arranged in front and back, a hanging hole is provided in the upper part of both side plates, and a ring-shaped wrapping body is inserted between the upper parts of both side plates into the hanging hole of both sides. A self-adjustable hanging device characterized by being connected in communication and having a pin installed between the lower parts of both side plates. 2) Arrange two side plates in front and back, make a hanging hole through the upper part of both side plates, and install an annular wrapping body between the upper parts of both side plates so that it communicates with the hanging hole of both side plates. It is a self-adjustable hanging device with a pin attached between the lower parts of the plates, a hanging rope is wound around the wrapping body between the upper parts of both sides of the plate, and both ends of the hanging rope are locked to shipping at a position below the wrapping body, A self-adjustable hanging device characterized in that a pin is arranged between the lower parts of both side plates between the left and right sides of a hanging rope stretched between a wrapping body and a hanging load.