JPH0874224A - Transposing device of four leg wave dissipating block - Google Patents

Abstract

PURPOSE: To improve the working efficiency by freely lifting up and down a supporting mechanism to hold a formwork device through a bottom formwork and freely advancing and retreating a holding member to make contact with and hold three supporting leg end parts of a wave dissipating block. CONSTITUTION: After arranging a bottom formwork 3 on a bottom formwork supporting member 16 of a supporting mechanism 12, a formwork device is assembled by setting a side formwork and an end plate 5. Thereafter, concrete is deposited, hardened and cured in the formwork device. Thereafter, after removing a formwork from a molded four leg wave dissipating block A, a holding member 22 is made contact with an end of the support member 16 by operating a hydraulic device 24 of a holding mechanism 14. Thereafter, the supporting member 16 and the formwork 3 are moved downward by operating a hydraulic device 18 of the support mechanism 12, and the support mechanism 12 is drawn out by a forklift, etc. Additionally, the block A is lowered and transposed while retreating the holding member 22 by way of operating the hydraulic device 24. Consequently, it is possible to easily and efficiently transpose the block while removing it from a mold.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transposing device for a four-legged wave-dissipating block, and more specifically, it is possible to easily perform the demolding and transposing operations of a molded four-legged wave-dissipating block. It relates to the device.

[0002]

2. Description of the Related Art The Applicant has proposed a four-legged wave-dissipating block having a hydraulically and mechanically excellent shape by projecting four support legs at a predetermined angle from the center. Sold under the trade name of Tetrapod.

As shown in FIG. 3, this tetrapod (hereinafter, simply referred to as a four-legged wave-dissipating block) has three side molds 1a, 1b for molding the upper three side surfaces of the four-legged wave-dissipating block. 1c, a formwork apparatus configured by combining a bottom formwork 3 having the same shape as these side formwork and molding the bottom surface of the block, and an end plate (end plate) 5 molding the end face of each support leg of the block. It is molded by placing concrete on 7.

By the way, when the formwork apparatus 7 is demolded from the four-legged wave-dissipating block formed by pouring concrete and is transposed, the side surfaces in the upper three directions are molded due to its structure.
The one side molds 1a, 1b, 1c and the end plate 5 for molding the end face of each supporting leg can be removed relatively easily, but the weight of the four-legged wave-dissipating block hangs on the bottom formwork 3. Therefore, this four-legged wave-dissipating block can only be removed by lifting it and removing its load.

Under these circumstances, a large-sized crane device has been previously secured for demolding work in the stage of production of a four-legged wave-dissipating block, and the molded four-legged wave-dissipating block body is lifted to the bottom. Demolding is performed by removing the form, and the four-legged wave-dissipating block that has been demolded is successively transposed using this large crane device. However, this means an increase in the unit cost of the four-legged wave-dissipating block that requires securing such a large crane device at the stage of production, and the production procedure becomes complicated, so efficient production and transposition work cannot be performed. There was such a problem.

[0006]

Therefore, according to the present invention,
A supporting mechanism for holding a molding device for a four-legged wave-dissipating block formed by combining a bottom formwork, a side formwork in the upper three directions, and an end plate at a predetermined height position via the bottom formwork. And a holding mechanism for holding the three support legs of the four-legged wave-dissipating block molded by using this formwork device, wherein the formwork support mechanism has a hydraulic pressure for operating the height position of the bottom formwork. The device is provided, while the holding mechanism is provided with a holding member that is movable in and out of contact with the end of the supporting leg of the four-leg dissipative block at each corner of the frame body whose planar shape is set to a substantially triangular shape. Furthermore, by attaching a hydraulic device to these holding members, the four-legged wave-dissipating block can be efficiently produced and transposed.

[0007]

In the present invention, the four-legged wave-dissipating block, which is molded and has the side molds and the end plates in the upper three directions removed, has its molding height increased through the holding member abutting against the supporting leg end. Hold the position, and then in this state, operate the hydraulic device of the form support mechanism to move the bottom formwork downward to remove the bottom formwork. The holding position of the leg-dissipating block is lowered and it is transposed as it is.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a transposing device for a four-legged wave-dissipating block according to the present invention will be described below in detail with reference to the accompanying drawings. For convenience of explanation, the same reference numerals as those used above will be used for the same components of the conventional formwork apparatus.

In FIG. 1, a transposing device 10 for a four-legged wave-dissipating block according to the present invention comprises a support mechanism 12 for the above-mentioned molding frame device 7 and a four-legged frame molded using this frame device 7. It is basically configured by a holding mechanism 14 for holding each supporting leg B of the wave-eliminating block A.

The support mechanism 12 includes side molds 1a, 1b in the upper three directions on the bottom mold 3 installed on the bottom mold support member 16.
1c is for supporting a formwork device 7 formed by combining the endplate 5, and the bottom formwork support member 16 is a saddle-shaped member formed in a shape substantially similar to that of the bottom formwork 3. The bottom formwork support member 16 is configured to support the formwork device 7 at a predetermined height position by operating a cylinder and a piston rod type hydraulic device 18.

Further, the holding mechanism 14 has a frame body 20 whose plane shape is formed into a substantially triangular shape. Inside the corner portion of the frame body 20, the holding mechanism 14 is provided at the end of each support leg B of the four-legged wave canceling block A. The respective holding members 22 that come into contact with each other are arranged, and the same hydraulic device 24 as described above that moves the holding members 22 forward and backward is arranged in the corner outer frame.
In this case, the end surface of the holding member 22 that comes into contact with the support leg B is formed as a predetermined inclined surface so that the four-legged wave canceling block A can maintain an upright posture.

When using the transposing apparatus 10 according to the present invention having such a structure, first, the transposing apparatus 10 is set at a predetermined position in the production yard as shown in FIG. 1a. In this state, the holding member 22 is held at a position closest to the inner side surface of the frame body 20, and the bottom formwork supporting member 16 is held at a predetermined height position by operating the hydraulic device 18 ( See Figure 2a). Next, as shown in FIG. 2B, after arranging the bottom formwork 3 on the bottom formwork support member 16 of the support mechanism 12, the side formwork 1 in the upper three directions is placed on the bottom formwork 3.
a, 1b, 1c and each end plate 5 are set to formwork device 7
Is assembled, concrete is placed in the formwork device 7, and curing is performed for a predetermined period (FIG. 2c).

After curing for a predetermined period of time, the side molds 1a, 1b, 1c and the end plates 5 are removed from the molded four-legged wave-dissipating block A (FIG. 2d), and then each hydraulic device 24 of the holding mechanism 14 is removed. Is operated to bring the holding member 22 into contact with the end portion of the support leg B (FIG. 2e). Next, after operating the hydraulic device 18 of the support mechanism 12 to move the bottom formwork 3 together with the bottom formwork support member 16 (FIG. 2f), the entire support mechanism 12 is pulled out using a forklift, and the like. Move to the concrete pouring place. In this state, the four-legged wave-dissipating block A is held at the height position formed by the holding member 22 that abuts the end portion of the support leg B.

When the formwork device 7 is demolded from the four-legged wave-dissipating block A molded in this way, each hydraulic device 24 of the holding mechanism 16 is operated again to gradually retract the holding member 22 and The leg-dissipating block A is lowered and transposed (FIGS. 2g and 2h). When the transposition is completed, the holding mechanism 16
Support mechanism 1 which has already been moved to the place of placing concrete, as described in FIG.
2 and the bottom formwork support member 16 of the support mechanism 12
The frame device 7 may be reassembled above and awaiting the next molding operation (FIG. 2i).

[0015]

As described above, according to the transposing device of the four-legged wave-dissipating block according to the present invention, the formwork is formed from the four-legged wave-dissipating block molded by placing concrete in the formwork device. By moving the four-legged wave-dissipating block up and down at this molding position while removing the mold, the transposition can be performed easily and efficiently. Moreover, unlike the conventional method, it is not necessary to secure a large crane device at the stage of production, so the unit cost of the four-legged wave-dissipating block can be reduced, and the structure is simple and the handling operation is easy. It has various advantages such as the efficiency of on-site work such as production, demolding, and transposition of the leg-dissipating block.

The preferred embodiment of the transposing device for a four-legged wave canceling block according to the present invention has been described above. However, the present invention is not limited to this embodiment and does not depart from the spirit of the present invention. It goes without saying that various design changes can be made in.

[Brief description of drawings]

FIG. 1 is a diagram showing a relationship between a preferred embodiment of a transposing device of a four-legged wave-dissipating block according to the present invention and a four-legged wave-dissipating block A shown by a broken line, where a is a schematic plan view and b is a schematic diagram. It is a sectional side view.

2A to 2I are explanatory views showing steps from molding of a four-legged wave-dissipating block to transposition using the transposition apparatus shown in FIG.

FIG. 3 is a perspective view of a formwork device used in the transposing device of the four-legged wave-dissipating block according to the present invention.

[Explanation of symbols]

10 transposition device, 12 support mechanism,
14 holding mechanism, 16 bottom formwork support member, 18
Hydraulic device, 20 frame body, 22 holding member,
24 hydraulic system,

Claims (1)

[Claims] 1. A four-legged wave-dissipating block molding form device formed by combining a bottom form, a side form in three upper directions, and an end plate is placed at a predetermined height position through the bottom form. It consists of a support mechanism for holding and a holding mechanism for holding the three support legs of a four-legged wave-dissipating block molded by using this formwork device, and the formwork support mechanism has a height position of the bottom formwork. The holding mechanism is provided with an advancing / retreating holding member that abuts the end of the supporting leg of the four-legged wave-dissipating block at each corner of the frame body whose planar shape is set to a substantially triangular shape. A transposition device for a four-legged wave-dissipating block, which is provided with a hydraulic device attached to these holding members.