JPS6022057Y2 - Lifting and reversing tool for concrete products - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a tool for lifting and reversing concrete products such as U-shaped grooves.

[Prior art]

Conventionally, as shown in FIG. 2, a wire rope 2 is connected to a shackle-shaped hanging tool 1, and an insertion rod 3 is inserted horizontally into the hanging tool 1, and then a side wall B of a concrete product A to be lifted and turned over. A tool for lifting and reversing a concrete product A has been proposed, which includes a plurality of spacers 4 capable of maintaining a distance between the outer surface of the lifting tool 1 and the outer surface of the lifting tool 1.

However, in the case of such a conventional lifting and reversing tool, there is no problem if the concrete product A to be lifted is lightweight; Since the so-called fulcrum and the point of action are spaced apart, there is a risk that the insertion rod 3 may be bent and eventually come out of the insertion hole 5 of the concrete product A.

[Purpose of invention]

Thus, the present invention was devised to address these conventional problems, and the insertion rod 3 does not bend even when lifting relatively heavy concrete products, making it extremely easy to work. The object of the present invention is to provide a lifting and reversing tool for concrete products that can easily lift heavy concrete products.

[Structure of the idea]

The lifting and reversing tool for concrete products according to the present invention is a lifting and reversing tool for concrete products that has bulges protruding outward at the ends of both side walls, and includes a lifting rod and an end portion of the lifting rod that is folded outward and stored. and a storage case capable of locking a lifting rod, an insertion rod that penetrates the storage case, and a spacer that is attached to the insertion rod and maintains a distance between the side wall of the concrete product and the storage case. It is what it is.

Example The present invention will be explained below based on embodiments shown in the drawings.

FIG. 1 is a schematic diagram showing the use of a concrete product lifting and reversing tool C according to the present invention.

In the drawings, reference numeral 10 indicates a concrete product, and the concrete product 10 has a substantially U-shaped cross section.
At the tip of both side walls 11.11 there is a bulge 1 that protrudes outward.
2.12.

In addition, insertion holes 14.degree. 14 into which the insertion rods 13, 13 of the lifting and reversing tool C are inserted are bored in the side walls 11.11.

Reference numeral 15 is a lifting rod, which is usually made of wire rope or the like.

Reference numeral 16 designates a storage case. The storage case 16 stores the lifting rod 15 by bending the end thereof outward, and locks the lifting rod 15 with a stopper 17.

Further, an insertion rod 13 is attached to the rear end of the storage case 16 so as to be slidable in the horizontal direction.

That is, the storage case 16 is formed with a through hole 18 that penetrates in the horizontal direction, and the insertion rod 1 is inserted into this through hole 18.
3 is inserted.

This insertion rod 13 has a plurality of approximately donut-shaped spacers 1.
9... are attached, and are configured to maintain a distance between the outer surface of the concrete product 10 to be lifted and the storage case 16 of the lifting and reversing tool C.

However, 10 concrete products that can be lifted and turned over
A bulge 12.1 formed at the tip of both side walls 11.11 of
Although the width between the outer surface of the concrete product 10 and the storage case 16 differs depending on the size of the concrete product 10, the spacers 19 may be attached in accordance with this width.

In the above, the usage condition of the lifting and reversing tool C according to the present invention will be explained.

First, a plurality of spacers/curves of the insertion rod 13 are attached to close the gap between the concrete product 10 and the storage case 16.

Next, the insertion rod 3 is inserted into the insertion hole 14.

In this state, lift it upward. Then, the lifting rod 15
Since it is bent outward and locked in the storage case 16, stress in the direction of arrow W acts, and even if the concrete product 10 is heavy, the insertion rod 13 will not be pulled out from the insertion hole 14. There is no risk of release.

[Effect of idea]

Thus, the present invention has the above-mentioned configuration, and with the lifting and reversing tool for concrete products according to the present invention, the insertion rod of the lifting and reversing tool can bend and extend even if the concrete product to be lifted and reversed is heavy. There is no fear of it being pulled out from the insertion hole.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the usage state of the lifting and reversing tool according to the present invention, FIG. 2 is a schematic diagram showing a conventional example, and FIG. 3 is an enlarged view of the main part of the present invention. A: Concrete product, B: Side wall, C: Lifting and reversing tool, 1: Hanging tool, 2: Wire loaf, 3...
Insertion rod, 4... Spacer, 5... Insertion hole, 10... Concrete product, 11...
...Side wall, 12...Bulge, 13...
...Insert rod, 14...Insert hole, 15...
...Lifting rod, 16...Storage case, 17
... Stopper, 18 ... Penetration L19 ...
····Spacer.

Claims (1)

[Scope of utility model registration request] This is a lifting and reversing tool for concrete products, which has a bulge that protrudes outward at the tips of both side walls, and a storage case that can store a lifting rod and the end of the lifting rod bent outward, and that can lock the lifting rod. A lifting and reversing tool for a concrete product, comprising: an insertion rod that penetrates the storage case; and a spacer that is attached to the insertion rod and maintains a distance between a side wall of the concrete product and the storage case.