JPH0137057Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a concrete wall plate erection support used in the so-called PC construction method, which is constructed by assembling prefabricated concrete wall plates.

[Conventional technology and its problems]

Such a strut telescopically fits the inner tube into the outer tube,
It is constructed by attaching engagement fittings to the concrete plate at the outer ends of both ends, and these engagement fittings conventionally have hook fittings 1 fixed to the ends of the outer tube and the inner tube, as shown in Fig. 1. , a claw metal fitting 2 is pivotally attached to the hook metal fitting 1 by a pin 3 so that its front edge 2a faces the hook recess 1a, and a pressing rod 4 that presses the upper edge of the claw metal fitting 2 is attached to the claw metal fitting 2. It is constructed by screwing into a support metal fitting 5 which is pivoted to the support metal fitting 5 so as to be able to move up and down.

In such a configuration, after the hook fitting 1 is hung on the latch 6 fixed to the wall board, the hook fitting 2 is laid down to close the opening of the hook recess 1a, and then the pressing rod 4 is screwed down and tightened to close the hook. The upper edge of the metal fitting 2 is pressed to prevent it from rising.

However, this conventional example uses pins and rods and has a complicated structure with many parts, which poses a problem of durability after long-term use, and the work of tightening the pressing rod 4 from time to time is troublesome and forgetful. It had the disadvantage of being easy to use.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
To provide a concrete wall board erecting post that has a small number of parts, is robust and has high strength, and has an engaging fitting that can be securely latched, is easy to handle, and can prevent forgetting to tighten.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention has been developed in which the inner pipe is telescopically inserted into the outer pipe, and fittings for engagement with the concrete plate are attached to the outer ends of both pipes. A flat hook body having a width equal to or less than the diameter of the cylinder body is protruded from the other end of a cylinder body having approximately the same diameter and one end fixed to the outer tube or the inner tube, and the outer peripheral surface of the cylinder body and the hook body are A hook metal fitting with a series of square screws formed on the opposite side of the hook recess from the joint of the cylindrical body to a position corresponding to the opening width of the hook recess, and a square screw to be screwed into the square screw of this hook metal fitting on the inner peripheral surface. and the inner peripheral surface near the opening end of the front edge is a non-threaded recess, and the engaging fitting is constituted by a short outer tube having a protruding piece having an insertion hole on the outer peripheral surface. This is a summary.

[Effect]

The engagement fitting for the concrete plate of the concrete wall plate erection support of the present invention consists of two parts: a hook fitting and a short outer tube that is screwed into the hook fitting, and the hook is inserted into the hook recess from the opening of the hook fitting. is firmly fixed in the hook recess by rotating the short outer tube to move the hook laterally and pressing the latch with the tip of the short outer tube.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a side view showing how the support column of the present invention is used, FIG. 3 is a longitudinal sectional side view of the engagement fitting used in the present invention, and FIG. 4 is a plan view of the same.

In the figure, 7 shows a PC concrete floor board, 8 shows a PC concrete wall board, and when building the wall board 8 on the floor board 7, the hook 6 was formed by bulging out the reinforcing bars embedded in the floor board 7.
and a hook 6' provided near the upper end of the wall board 8, and the support of the present invention is bridged thereon. Note that there is a latch 6' on the wall plate 8.
Instead, a holder 9 having a hook portion 9a as shown in FIG. 5 may be used.

In the figure, 10 is an outer tube constituting the strut of the present invention, and 11
is an inner tube that is telescopically inserted into the outer tube 10, and both tubes 1
0 and 11 are nuts 1 that can be fixed on the respective outer peripheries
They are fixed to each other by a turnbuckle type jack 12 formed by 2a, 12b and a threaded rod 12c having threads in opposite directions at the front and back.

The nuts 12a and 12b are connected to the outer tube 10 and the inner tube 1.
1, there are various methods such as providing a sheath pipe and using an insertion pin, or using a clamp joint or a locking device with a built-in spring.
For example, a nut 12a is provided on a tube 21 that is rotatable with respect to the outer tube 10, a nut 12b is provided on a sheath tube 22, and a plurality of holes 11a provided in the inner tube 11 are connected to the sheath tube 2.
Insert the pin 23 into the hole 22a provided in 2.

An engaging metal fitting 13 is provided at the ends of the outer tube 10 and the inner tube 11, and the engaging metal fitting 13 has approximately the same diameter as the outer tube 10 and the inner tube 11, and one end is fixed to the outer tube 10 and the inner tube 11. A hook fitting 16 having a flat plate-like hook body 14 having a width equal to or smaller than that of the columnar body 24 protruding from the other end of the cylindrical body 24, and a short outer tube 18 screwed into the hook fitting 16. Consists of a combination of parts.

Of these, the hook fitting 16 has a series of square screws 15 formed on almost the entire outer peripheral surface of the cylindrical body 24 and on the opposite side of the hook recess 14 a of the hook body 14 . The width corresponds to the width of the opening 14b of the hooked recess 14a on the opposite side from the joint to the cylindrical body 24.

On the other hand, the short outer tube 18 has the same length as the cylindrical body 24, and has a square screw 17 formed on its inner circumferential surface to be screwed into the square screw 15 on the hook fitting 16 side. However, the inner peripheral surface near the opening end of the front edge 18a is configured as a recess 20 without the square screw 17.

The front edge 18a of the outer tube 18 may be formed into a tapered shape, and the outer circumferential surface of the outer tube 18 is provided with a protruding piece 19 having an insertion hole 19a for a working tool such as a chisel.

Next, the use and operation of the screw rod 12c of the jack 12 will be explained.
2a only, and insert the inner tube 11 inside the outer tube 10.
Insert and expand and contract as appropriate.

Further, the engagement fitting 13 is connected to the front edge 18 of the short outer tube 18.
without protruding from the cylindrical body 23, the hook recess 14
The opening 14b of a is opened in advance, and the latch 6 of the concrete floor plate 7 and the latch 6' of the concrete wall plate 8 are inserted into the hook recess 14a through the opening 14b. Next, when the pipe is inserted into the hole 19a and the outer tube 18 is rotated, the outer tube 18 moves laterally with respect to the hook fitting 16, closes the opening of the hook recess 14a, and closes the tip of the hook body 14. The bent portion enters into the short outer tube 18, and the front edge 18a of the short outer tube 18 presses against the latches 6, 6', and the engaging fitting 13 moves into the latches 6, 6'.
6' and secure it firmly.

Next, use the same screwdriver to turn the screw rod 12c and screw it into the other nut 12b to tighten the screw 12.
Just tighten and adjust.

Note that the recess 2 near the front edge 18a of the short outer tube 18
0 has the role of making it easier to screw this short outer tube 18 into the hook fitting 16, and when the short outer tube 18 is tightened, the bent tip of the hook body 14 enters into this recess 20, and as a result, the short outer tube 18 is screwed into the hook fitting 16. The front edge 18a of the outer tube 18 has the role of sufficiently abutting the latches 6, 6' and pressing them strongly.

[Effect of idea]

As mentioned above, the concrete wall plate erection support of the present invention is constructed by telescopically fitting the inner tube into the outer tube,
In a construction post with engagement fittings attached to the concrete plate at the ends of both pipes, the hook fittings have a hook recess at the tip and are connected to the outer ends of both ends, and the inner peripheral surface is on the outer circumferential surface of this hook fitting. Since the engaging metal fitting is composed of a short outer tube that can be screwed together to close the opening of the hook recess, the engaging metal fitting consists of only two parts, the hook fitting and the short outer tube, and has fewer parts than before. Since it does not use pins or rods, it is strong and durable, and is easy to handle.The screw structure allows it to be directly pressed into the latch of the concrete plate to securely and firmly latch it, and also prevents forgetting to tighten, which tends to happen with conventional methods. It is something.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a conventional engagement fitting for a column;
Figure 2 is a side view showing how the support of the present invention is used;
Fig. 3 is a vertical side view of the engagement fitting of the column of the present invention;
FIG. 4 is a plan view of the same as above, and FIG. 5 is a side view of the holding tool used for the wall board. 1... Hook fitting, 1a... Hook recess, 2... Claw fitting, 2a... Front edge, 3... Pin, 4... Pressing rod,
5... Support metal fittings, 6, 6'... Latch, 7... Concrete floor plate, 8... Concrete wall plate, 9...
Holding tool, 9a...Hook part, 10...Outer tube, 11
...Inner tube, 11a...hole, 12...turnbuckle type jack, 12a, 12b...nut, 12
c... Screw rod, 13... Engaging metal fitting, 14... Hook body, 14a... Hook recess, 14b... Opening, 15,
17... Square screw, 16... Hook fitting, 18... Short outer tube, 18a... Front edge, 19... Projecting piece, 19a
...insertion hole, 20 ... recess, 21 ... rotatable tube, 22 ... sheath tube, 22a ... hole, 23 ... pin, 24 ... cylindrical body.

Claims (1)

[Scope of utility model registration request] In a construction post in which an inner pipe is telescopically inserted into an outer pipe and engagement fittings to the concrete plate are attached to the outer ends of both pipes, one end is approximately the same diameter as the outer pipe or the inner pipe, and one end is connected to the outer pipe. A flat hook body having a width equal to or less than the diameter of the cylindrical body is protruded from the other end of the cylindrical body that is fixed to the inner tube, and the outer peripheral surface of the cylindrical body and the opposite side of the hook recess of the hook body are A hook fitting in which a series of square screws are formed from the joint part to a position corresponding to the opening width of the hook recess, and a square screw to be screwed into the square screws of this hook fitting is formed on the inner peripheral surface, and the opening end of the front edge. An erecting support for a concrete wall board, characterized in that the adjacent inner circumferential surface is a non-threaded recess, and the engagement fitting is constituted by a short outer tube provided with a protruding piece having an insertion hole on the outer circumferential surface. .