JPH019830Y2 - - Google Patents

Description

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

[Problems to be solved by the invention] In the past, inventors have devised lifting and reversing jigs for various concrete products. Therefore, the present invention is a further improvement of the conventional lifting and reversing jig for concrete products, which reduces the number of parts of the jig to reduce the cost, is durable, and is suitable for lifting concrete products. Concrete products of various sizes can be easily set and lifted, and can also be lifted by inserting an insertion rod from the outside or inside of the side wall of the concrete product. The purpose of the present invention is to provide a lifting and reversing jig for concrete-like products.

[Structure of the invention] The lifting and reversing jig for concrete products according to the invention includes a pair of lifting members 1, 1, and a distance between the lifting members 1, 1 that can be adjusted. This is a lifting and reversing jig 4 for concrete-like products, which comprises a horizontal member 2 for holding and inserting jigs 3, 3 attached to the lower ends of a pair of lifting members 1, 1, respectively. The insertion jig 3 has a holder 4 which is formed into a substantially inverted U-shape by the bifurcated base rods 6, 6 and the joint portion of the base rods 6, 6.
and an insertion rod 8 that penetrates the bifurcated base rods 6, 6 at approximately right angles.
and a locking tool 10 having a length substantially equal to the interval between the bifurcated base rods 6, 6 and disposed between the base rods 6, 6.
and a locking pin 12 that fixes the insertion rod 8, which penetrates the base rods 6, 6 at a substantially right angle and the locking tool 10, to the locking tool 10, and the insertion rod 8 is inserted into the locking tool 10. It is characterized in that it is fixed to the locking tool 10 by a stop pin 12 and can protrude from both sides of the locking tool.

[Example] The present invention will be described below based on an example shown in the drawings.

FIG. 1 is a schematic view showing one state of use of the lifting and reversing jig for concrete products according to the present invention.

As shown in the figure, a lifting and reversing jig A for concrete products B according to the present invention includes a pair of wire rope-shaped lifting members 1, 1, and a distance between the lifting members 1, 1 is adjustable. 1, 1, and insertion jigs 3, 3 respectively attached to the lower ends of a pair of lifting members 1, 1 hanging from the horizontal member 2. It is composed of:

Next, details of the insertion jig 3 will be explained with reference to FIGS. 2 and 3.

FIG. 2 shows a first embodiment of the insertion jig 3 according to the present invention.

In the drawings, reference numeral 4 indicates a holder having a substantially inverted U shape. The holder 4 has a substantially inverted U-shape with bifurcated base rods 6, 6 and a connecting portion of the base rods 6, 6. A connecting portion 5, which is a curved central portion of the holder 4, is used as a connecting portion with the lifting member 1.

Incidentally, the base rods 6, 6 are provided with through holes 7, 7 through which an insertion rod described later passes.

Reference numeral 8 indicates an insertion rod. The insertion rod 8 is formed into a substantially pipe shape, and has a plurality of through holes 9 inserted therethrough in a direction orthogonal to the longitudinal direction.

The insertion rod 8 is constructed so that it can be inserted through both the through holes 7, 7 of the holder 4 and protrude from both sides of the holder 4.

Next, reference numeral 10 denotes a locking tool, which is arranged between both base rods 6, 6 of the holder 4 in order to lock the insertion rod 8 inserted through the through holes 7, 7 to the holder 4. It is something that

This locking tool 10 includes a hollow pipe-shaped main body 11,
Locking pin 1 that can lock the insertion rod 8 to this main body 11
2. The length of the main body 11 is approximately equal to the length between the base rods 6, 6.

As described above, in FIG. 1, if you want the insertion rod 8 to protrude to the left when facing the drawing, the rightmost through hole 9 of the insertion rod 8 or the second from the right side.
The locking pin 12 is passed through and fixed. However, in the levered state, the main body 11 is clamped and locked between the base rods 6, 6, so there is no fear that the insertion rod 8 will be pulled out.

In addition, if you want the insertion rod 8 to protrude to the right side as viewed in FIG.
The locking pin 12 is passed through and fixed.

Therefore, it is possible to provide a lifting and reversing jig A that is simple, has a small number of parts, and can lift a concrete product B from both the outside and the inside with simple operations.

Next, a second embodiment of the insertion jig 4 is shown in FIG. 3 of the drawings. In this insertion jig 3, a plurality of through holes are not formed in the longitudinal direction of the insertion rod 8, but a plurality of recesses 13 are formed at equal intervals in place of the through holes. The locking pin 12 of the locking tool 10 may be fixed in such a recess 13 and the insertion rod 8 may be fixed to the main body 11.

[Effect of the idea] Thus, the present invention has the above configuration.

The lifting and reversing jig for concrete products according to the present invention reduces the number of jig parts, lowers manufacturing costs, and improves strength.
Furthermore, even if the concrete product to be lifted is of various sizes, it can be easily adjusted and lifted, and the rod can be easily inserted not only from the outside of the side wall of the concrete product but also from the inside. Since it can be lifted by inserting the concrete product, it has excellent effects such as there is no fear that the water threads will interfere with the construction when concrete products are laid between the water threads at the construction site.

[Brief explanation of drawings]

Figure 1 is a schematic diagram showing how the present invention is used;
3 are partially cutaway front views showing the insertion jig according to the present invention. A... Lifting and reversing jig, B... Concrete product, 1... Lifting member, 2... Horizontal frame material, 3...
Insertion jig, 4...Holding tool, 5...Joining part, 6...
Base rod, 7... Through hole, 8... Insertion rod, 9... Through hole, 10... Locking tool, 11... Main body, 12... Locking pin, 13... Recess.

Claims (1)

[Claims for Utility Model Registration] A pair of lifting members 1, 1; a horizontal member 2 holding the pair of lifting members 1, 1 by adjusting the distance between the lifting members 1, 1; This is a lifting and reversing jig 4 for concrete products, which includes a pair of lifting members 1, 1 and insertion jigs 3, 3 respectively attached to the lower ends of the lifting members 1, 1, and the insertion jig 3 has a bifurcated shape. A holder 4 that forms a substantially inverted U shape with the base rods 6, 6 and the joint portion of the base rods 6, 6.
and an insertion rod 8 that penetrates the bifurcated base rods 6, 6 at approximately right angles.
and a locking tool 10 having a length substantially equal to the interval between the bifurcated base rods 6, 6 and disposed between the base rods 6, 6.
and a locking pin 12 that fixes the insertion rod 8, which penetrates the base rods 6, 6 at a substantially right angle and the locking tool 10, to the locking tool 10, and the insertion rod 8 is inserted into the locking tool 10. A lifting and reversing jig for concrete-like products, which is fixed to a locking tool 10 by a stop pin 12 and can be protruded from both sides of the locking tool.