JPH08225286A - Corner protective tool for wire slinging work - Google Patents

Abstract

PURPOSE: To facilitate the arranging work of a corner protective tool and recover it while a wire is fitted to it by adding a simple structure. CONSTITUTION: A nearly L-shaped comer protective tool 10 is provided at the hook position on the comer section of a pre-column 12 which is a hoisting load of a slinging wire 14. The base section of a shackle 22 is integrally fitted in the inserting direction of the wire 14 at the center of one side section of the back face of the corner protective tool 10, and the wire 14 is removably inserted into the shackle 22 when a lock lever 24 removably arranged at the tip of the shackle 22 is removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a corner protector for preventing a slinging wire from directly contacting a corner portion of a suspended load and protecting the suspended load and the wire.

[0002]

2. Description of the Related Art For example, as shown in FIG. 3, when a precolumn such as a column form made of a thin precast concrete in a box shape, or other prismatic precast concrete member 1 is hung around a sling wire,
A corner protector 3 is applied to a position around the corner of the wire 2 in order to prevent damage to the corner or damage to the wire 2 itself due to abrasion.

The corner protector 3 is made of a substantially L-shaped short steel material having a curved corner portion, and a cushion material 3a such as a rubber plate is integrally attached to a contact surface inside the concrete protection member 3 with respect to the concrete member 1. It was done.

[0004]

In the corner protector 3 having this structure, unless the worker holds the concrete member 1 while holding it until the wire 2 is completely strained, the worker will fall off. Each time the wire locking position was changed, the protector 3 had to be moved to the optimum position, and the work efficiency was poor. Moreover, when the wire is removed, the protector 3 falls off and scatters around, so it takes time to collect the protector.

The present invention solves the above-mentioned drawbacks, and an object thereof is to add a simple structure to facilitate the work of arranging the corner protector and keep it attached to the wire. (EN) Provided is a corner sling for wire sling which can be collected.

[0006]

To achieve the above object, the present invention relates to a corner protector having a substantially L-shaped cross section which is interposed at a position where a sling wire is hung around a corner of a suspended load. The base of the shackle is integrally attached to the center of one side on the back surface of the corner protector so as to face the insertion direction of the wire, and the wire is detached by a lock bar detachably provided at the tip of the shackle. It is characterized in that it is adapted to be detachably inserted into the.

[0007]

In the above corner protector, the wire is inserted into the shackle, so that the protector can be roughly positioned at that position before the wire is completely bound. When changing the locking position of the wire, the wire can also be changed following the movement of the protector. The protector remains attached to the wire when the wire is unloaded.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows a corner protector 10 according to the present invention in which three precolumns 12 are connected to a pair of sling wires 14.
It shows the package shape when it is lifted by.

In the figure, two pre-columns 12 are arranged in parallel in the lower part, and one pre-column 12 is about to be lifted up in the shape of a convex stack stacked in the center of the upper part thereof, and therefore each wire 14 to be wound around this. Is the lower pre-column 12
The wires 14 hit the lower corners and the upper corners on both sides in the longitudinal direction of the corner protector 10 at these four positions.
Is interposed.

The upper end of each wire 14 has a suspension beam 16
The suspension beam 16 connected to the crane via a shackle or the like is also suspended from the crane via the suspension wire 18 and a hook block (not shown).

Each of the corner protectors 10 is made of a short steel material having a substantially L-shaped cross section having a curved corner portion as shown in FIG. 2, and a cushion material such as a rubber plate is provided on a contact surface inside the pre-column 12 with the pre-column 12. 20 is integrally attached, and the base of a shackle 22 that is generally commercially available is integrally attached by welding or the like to the center of one side on the back face so as to face the insertion direction of the wire 14, and can be attached to and detached from the tip of the shackle 22. The wire 14 is removably inserted into the shackle 22 by hanging the lock bar 24 arranged at the position.

The lock bar 24 is inserted into a bolt portion 20a which is integrally provided at both ends of the shackle 22, and the nut 26 is screwed into the bolt portion 20a after the shackle 22 is inserted. Is closed and the wire 14 is inserted and connected to the wire.

In the above construction, when each wire 14 is wound around the pre-column 12 and raised to a certain extent, the wire 14 becomes in a tensioned state to some extent. This state is wire 1
The entire load of the pre-column 12, which is a suspended load, is not applied to 4 and it is in a state in which it can be adjusted to some extent by being manually moved or pulled.

At this time, the work of raising the wire 14 is stopped, the corner protector 10 is positioned at each corner of the pre-column 12 as shown in the drawing, and the lock bar 24 is temporarily removed to remove the wire 1.
4 and insert the lock bar 24 into the shackle 2 again.
When the wire 14 is connected to the corner protector 10, the wire 14 is laid around the corner protector 10 at a position perpendicular to the longitudinal center of the protector 10. Alternatively, the shackle 22 may be coupled to the wire in advance, and the corner protector 10 may be moved along the wire 14 to be positioned at each corner.

After the corner protectors 10 are positioned at the corners, if the corner protectors 10 are moved and adjusted along the longitudinal direction of the pre-column 12, the wires 14 can also be moved following them. In this way, after all the adjustment work is completed and the package is completely prepared, it is possible to lift it by a signal or the like.

Even after the pre-column 12 is lifted to the lifting position and the wire 14 is hung and removed, each corner protector 10 is still connected to the wire 14 and can be hung down to the original position in this state. The work of collecting the corner protector 10 itself is also unnecessary.

[0018]

As described above in detail with reference to the embodiments, in the wire sling corner protector according to the present invention, the wire is inserted into the shackle to protect the wire before it is completely bound. The tool can be roughly positioned at that position, and when changing the locking position of the wire, the wire can also be changed by moving the protector. There is an advantage that the work of arranging the corner protector can be simplified.

Further, since the corner protector remains connected to the wire even when the wire is removed from the suspended load, there is no need to collect the corner protector itself, and there is an advantage that the work efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a loading state of a pre-column provided with a corner protector according to the present invention at the time of lifting.

FIG. 2 is an enlarged perspective view showing a specific configuration of the corner protector.

FIG. 3 is a perspective view showing a conventional corner protector.

[Explanation of symbols]

 10 Corner protector 12 Suspended load (pre-column) 14 Wire for sling 22 Shackle 24 Lock bar

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Mitsuyuki Yasuhara 35 Nishimachi, Chuo-ku, Kobe City, Hyogo Prefecture Obayashi Corporation Kobe Branch (72) Inventor Shigekazu Sakurai 35 Nishimachi, Chuo-ku, Kobe City, Hyogo Prefecture Obayashi Kobe Corporation In branch (72) Inventor Go Watanabe 35 Nishimachi, Chuo-ku, Kobe-shi, Hyogo Obayashi Corp. Kobe Branch (72) Inventor Kei Sakamoto 35 Nishimachi, Chuo-ku, Kobe-shi, Hyogo Obayashi Corp. Kobe Branch (72) Invention Tetsuro Ito 35 Nishimachi, Chuo-ku, Kobe-shi, Hyogo Obayashi Corporation Kobe Branch

Claims (1)

[Claims] 1. A corner protector having a substantially L-shaped cross section which is interposed at a position where a sling wire is hung around a corner of a suspended load, the corner protector being provided with the wire at the center of one side on the back surface thereof. The base of the shackle is integrally attached so as to face the insertion direction, and the wire is removably inserted into the shackle by detaching and attaching a lock bar detachably provided at the tip of the shackle. Corner protector for wire sling.