JPS6243986Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a lifting and reversing jig for concrete products, such as a concrete product such as a side gutter, for lifting and turning the concrete product face up.

[Prior art] The inventor has developed and devised lifting and reversing jigs for various concrete products (Utility Application 1983).
−52731, Jitsugan No. 89469, Jitsugan No. 1983-
121954, Jitsugan No. 57-121955).

[Purpose of the invention] The present invention is an improvement on these conventional ideas, and provides a concrete product lifting and reversing jig that can repeatedly perform lifting and reversing work of concrete products safely and efficiently. The purpose is to provide

[Structure of the invention] The concrete product lifting and reversing jig according to the present invention has two side walls 1 of the concrete product A to be reversed.
Reversing rods 6, 6 inserted into lifting holes 16, 16 drilled in the reversing rods 6, 15, and a first support rod 5 attached so that the protruding length of the reversing rods 6, 6 to be inserted can be adjusted. , 5 and a second support rod 8 connected at right angles to the horizontal lifting member 1.
a, 8b, and a wire rope 1 connecting between the first support rods 5, 5 and the second support rods 8a, 8b.
2, 12, and the wire rope 1 by connecting between the first support rods 5, 5 and the second support rods 8a, 8b.
It has a pair of support members 4a, 4b equipped with covering rods 14, 14 that cover the first support rods 5, 5 and the second support rods 8a, 8.
Both supporting rods 5, 8a, slidable on the outer peripheral surface of b.
The covering rods 14, 14 connecting the first supporting rods 5, 8b are connected to the first supporting rods 5, 5 when lifting the concrete product A.
and second support rods 8a and 8b, and the distance between the pair of support members 4a and 4b can be changed according to the width of the concrete product A to be inverted. That is.

[Embodiments of the invention] The invention will be described below based on embodiments shown in the drawings.

In the drawings, reference numeral 1 indicates a hoisting horizontal member.
The horizontal lifting member 1 has a plurality of through holes 2 at equal intervals in the longitudinal direction of the horizontal member 1 at one end thereof.
is drilled.

Further, a male threaded portion 3 is formed on the other end side of this hoisting horizontal member 1.

Next, reference numerals 4a and 4b indicate a pair of support members.

To explain the structure of the support members 4a, 4b, first, reference numeral 5 denotes a first support rod which is a component of the support members 4a, 4b.

A reversing rod 6 is provided below the first support rod 5.
However, the inwardly protruding length of the reversing rod 6 can be adjusted by spacers 7, and is attached at a substantially right angle.

Therefore, when the width of the concrete product A becomes narrower, it is possible to accommodate the difference in width of the concrete product by moving the spacer 7 to the inside of the reversing rod 6, that is, to the concrete product side. can.

Further, reference numeral 8a indicates a second support rod on the side of the support member 4a.

The second support rod 8a has a connection part 10 with the lifting tool 9 at its upper part, and a bulge part 11 in the middle through which the horizontal lifting member 1 passes.

By the way, locking portions 13, 13 for locking the wire rope 12 are formed on the first support rod 5 and the second support rod 8a, and the wire rope 12 is attached between the locking portions 13, 13. and connects the first support rod 5 and the second support rod 8a.

Reference numeral 14 denotes a covering rod, which is disposed between the first support rod 5 and the second support rod 8a, and covers the wire rope 12.

The covered rod 14 is slidably connected to the outer peripheral surfaces of the first support rod 5 and the second support rod 8a so as to straddle both support rods 5 and 8a, and is particularly suitable for lifting concrete products A. Sometimes, this covering rod 14 is regulated to prevent it from sliding down below the first support rod 5 and exposing the flexible wire 12, that is, so that it straddles between the first support rod 5 and the second support rod 8a. has been done.

With this configuration, the pair of support members 4a and 4b can be made into strong rod-shaped pieces during lifting.
The concrete product will not fall from the lifting and reversing jig during lifting.

Next, the support member 4b located on the right side as viewed in FIG. 1 will be further explained.

The support member 4b also includes a first support rod 5, a second support rod 8a, a wire rope 12 disposed between the support rods 5 and 8a, and a wire rope 12.
It has a covering rod 14 that covers the.

Similarly to the case described above, this covering rod 14 is also designed to prevent the covering rod 14 from sliding down below the first support rod 5 and exposing the flexible wire 12 during lifting. It is regulated to straddle between the support rods 8a.

By the way, the second support rod 8b of the support member 4b has a connecting portion 10 for a lifting tool 9 formed at its upper portion. In the middle thereof, there is a female threaded part 15 which is screwed into the male threaded part 3 of the horizontal lifting member 1.
is formed, and this point is different from the connecting portion 10 of the second support rod 8b described above.

Therefore, with the above configuration, the pair of support members 4
a, 4a are connected to the hoisting horizontal member 1 by changing the distance between them. Therefore, this also makes it possible to lift and turn over concrete products A having different widths using one type of lifting and turning jig.

Next, the state of use of the present invention will be explained.

When lifting the concrete product A, when inserting or removing the reversing rods 6, 6 into the lifting holes 16, 16 drilled in the side walls 15, 15 of the concrete product A, conventionally a long rod-shaped support is used. The members are hoisted and held in the vertical direction, and from this state, the support members are moved in the longitudinal direction of the hoisting horizontal member 1, and the reversing rods 6, 6 are inserted into or removed from the hoisting holes 16, 16. I used to try to get it, but it was very troublesome.

For example, if the concrete product A is installed on the ground on a slope instead of on a horizontal ground, the support member in the form of a long bar with relatively high rigidity as described above is not suitable for inserting the reversing rods 6, 6. This is because the extraction work involves problems such as the need to lift the supporting member diagonally in line with the slope thereof.

Therefore, in the present invention, the covering rods 14, 14 of the supporting members 4a, 4b are lifted upward to expose the wire ropes 12, 12 inside, and the wire ropes 12, 12 are made to be freely bendable, and the reversing rods 6, 6 are inserted. This makes the extraction operation extremely easy.

Further, when performing lifting and reversing work, the covering rods 14, 14 are lowered, and the first support rod 5 and the second support rod 8a, 8b are connected to form a single rigid pipe shape. becomes.

Therefore, when lifting a concrete product by inserting the reversing rods 6, 6 attached to the pair of support members 4a, 4b into the lifting holes 16, 16, the pair of support members 4a,
4b are connected at right angles, and the lifting and reversing work can be carried out safely without further expansion.

Further, the reversing rod 6 is connected to the lifting hole 16 of the concrete product A to be lifted by the spacer 7...
Since the support members 4a and 4b can be inserted according to the depth of the hole 16, the support members 4a and 4b can be inserted into the concrete product A.
The work can be carried out safely and efficiently without damaging the concrete product A by hitting the edge of the concrete product A.

Thus, the present invention has the above-described configuration, and when lifting and reversing work, the reversing rod can be easily inserted and removed, and the work can be performed safely and efficiently.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the present invention, FIG. 2 is a schematic front view showing one side of the support member, and FIG. 3 is a side view thereof.
FIGS. 4A and 4B are schematic diagrams showing the state of use of the present invention. A... Concrete product, 1... Lifting horizontal member, 2... Through hole, 3... External threaded part, 4a, 4b
... Support member, 5 ... First support member, 6 ... Reversing rod, 7 ... Spacer, 8a, 8b ... Second support member, 9 ... Lifting tool, 10 ... Connection part, 11 ...
Bulging portion, 12... Wire rope, 13... Locking part, 14... Covering rod, 15... Side wall, 16... Lifting hole.

Claims (1)

[Scope of claims for utility model registration] Both side walls 1 of concrete product A to be reversed
Reversing rods 6, 6 inserted into lifting holes 16, 16 drilled in the reversing rods 6, 15, and a first support rod 5 attached so that the protruding length of the reversing rods 6, 6 to be inserted can be adjusted. , 5 and a second support rod 8 connected at right angles to the horizontal lifting member 1.
a, 8b, and a wire rope 1 connecting between the first support rods 5, 5 and the second support rods 8a, 8b.
2, 12, and the wire rope 1 by connecting between the first support rods 5, 5 and the second support rods 8a, 8b.
It has a pair of support members 4a, 4b equipped with covering rods 14, 14 that cover the first support rods 5, 5 and the second support rods 8a, 8.
Both supporting rods 5, 8a, slidable on the outer peripheral surface of b.
The covering rods 14, 14 connecting the first supporting rods 5, 8b are connected to the first supporting rods 5, 5 when lifting the concrete product A.
and second support rods 8a and 8b, and the distance between the pair of support members 4a and 4b can be changed according to the width of the concrete product A to be inverted. Lifting and reversing jig for concrete products.