JPS58179605A - Manufacture of concrete product - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing concrete products, which allows concrete products to be easily manufactured in a narrow space using a concrete formwork with a pallet and a forklift.

Concrete products such as U-shaped grooves are made by pouring concrete into a concrete formwork and
The concrete formwork is manufactured by removing the mold after curing and solidifying, and the concrete formwork is moved as appropriate in accordance with each step of curing and demolding. However, in the past, the movement of this concrete formwork was carried out using a trolley that moved on rails laid inside the factory.
- Since the concrete formwork was placed on top of the concrete formwork, it required a site for rails, and the construction cost was high due to the installation of the crane equipment to lay the rails and place the concrete formwork on the trolley. It had Furthermore, since the conventional demolding means uses a vacuum device to pull the concrete product out of the concrete formwork, the installation of the vacuum device further increases the construction cost.

Therefore, the present invention solves the disadvantage of high construction costs due to the necessity of installing rails, crane devices, and vacuum devices as described above, and provides a manufacturing method that can manufacture similar concrete products at low construction costs. This is the issue. Therefore, the gist of the present invention is to pour concrete 1-product into a concrete formwork with a pallet fixed to the bottom, and after curing this concrete, insert the forklifts 1-1 into the insertion holes formed in the pallet. Insert the claw of the rotating fork of the forklift, rotate the rotating fork of this forklift to invert the concrete formwork, and remove the product from the concrete formwork to concrete 1. be. Therefore, it is possible to move the concrete formwork and demold the concrete product just by using a forklift, which makes it possible to achieve the above-mentioned problems.

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

1 to 3, one embodiment of a formwork for concrete 1 used in the present invention is shown, and the concrete formwork 1 has four forming frames 2 for forming individual concrete products, for example. These molding frames 2 are made up of two side plates 4, 4 fixed to both sides of four molding plates 3.

The molded plate 3 is made by bending a single iron plate, for example, inverted (with side parts 3b, 3b on both sides with a 1-shaped molded part 3a in between).
is formed, and concrete is poured between the formed part 3a and the side parts 3b, 3b, and in this embodiment, U
The shape of the forming plate 3 is determined according to the concrete product to be manufactured, and various concrete products can be formed. On the other hand, the two side plates 4, 4
are provided so as to face each other in the longitudinal direction of the concrete 1 to the formwork 1, and are connected via, for example, three terminal rods 5,
They are designed to be able to move in opposite directions. That is, screws in opposite directions are formed on both sides of the terminal rod 5, and the screws of the terminal rod 5 are connected to the side plate 4.
, 4, and by rotating the terminal rod 5, the side plates 4, 4 can be moved in opposite directions. A plurality of regulating portions 7 are provided on the side plates 4, 4 so as to protrude inwardly.
, 4 press against the pushing parts 8 provided on the outside of the side parts 3b, 3b of the molded plate 3, so that the side parts 3b, 3b of the molded plate 3 are forced to open outward. ing. Therefore, when the terminal rod 5 is rotated and loosened from the illustrated state 1, the side plates 4° 3-4 move away from each other, and as the side plates 4, 4 move, the regulating portion 7 Side portion 3b of molded plate 3.

3b is deviated from the pushing part 8, and the biasing force of the side parts 3b, 3b spreads outward from the demolding part, making it easy to demold the concrete product.

−■− At the bottom of the concrete formwork 1, there is a pallet 1 to 9.
are fixed, specifically, as shown in Figure 3,
Angles 10 and 11 fixed to each of the forming plate 3 of the concrete formwork 1 and the pallet 9 are fixed to the pole 1 by being tightened with 12 and nuts 13. This pallet 9 is formed with insertion holes 14.degree. 14, into which the claws 17 of the rotary fork 16 of the forklift 15 can be inserted, as shown in FIG.

Therefore, this invention manufactures concrete products using the concrete formwork 1 to which the pallet 9 is fixed. First, concrete is poured into each forming frame 2 of the concrete formwork 1, and the concrete is cured for a predetermined period of time. and solidify it. To move from the concrete 1 to the place 4 where concrete is poured into the formwork 1 to the place where concrete is to be cured, as shown in FIG. This is done by inserting it into .14. Next, after the concrete is cured, the concrete 1-form 1 is similarly moved to a place for demolding using a forklift 15. Then, while holding the concrete formwork 1, the rotating fork 16 of the forklift 15 is rotated, the concrete formwork 1 is turned over by 180 degrees, and the concrete formwork 1 is lowered to the ground again. Next, the terminal rod 5 is loosened and the side plates 4, 4 are moved to release the bias on the side parts 3b, 3b of the molded plate 3. Then, as shown in FIG. 5, a gap is created between the side parts 3b, 3b of the molded plate 3 and the concrete product 18, and the forklift is moved again]5
The concrete product 18 can be easily demolded by lifting it onto the pallet 9.

In addition, in this example, concrete formwork is explained as one in which multiple concrete products are manufactured using one formwork, but this is not limited to this.
For example, Japanese Patent Publication No. 49-43255) may be used, or an appropriate number of them may be placed and fixed on pallets 1 to F.

As mentioned above, according to the invention, the insertion hole into which the claw of the rotating fork of the forklift is inserted is fixed to the forming pallet 1 at the bottom of the concrete form, and the concrete mold with the pallet l- Since concrete products are manufactured by freely moving and rotating the frame and a forklift, it is possible to easily manufacture concrete products even in a narrow space without using special equipment. It is possible to reduce factory construction costs.

[Brief explanation of the drawing]

Figures 1 to 3 show the formwork for the concrete 1 attached to the pallet 1 used in this invention, Figure 1 is a plan view, Figure 2 is a front view, and Figure 3 is the formwork for fixing to the pallet 1. FIG. 4 is a cross-sectional view showing a state in which the pallet-equipped concrete formwork 1 is lifted by a forklift 1;
FIG. 5 is a side view showing the state of the concrete product after it has been demolded. 1... Concrete]-Formwork, 9... Pallet, 14
．． 14...insertion hole, 15...forklift, 16
...Rotating fork, 17...Claw, 18...Product to concrete 1.

Claims (1)

[Claims] Concrete 1 ~ Concrete is poured into a formwork with a pallet fixed to the bottom, and after this concrete is cured,
A rotating fork of a forklift is inserted into the insertion hole formed in the pallet, the rotating fork of the forklift is rotated to invert the concrete formwork, and the concrete product is removed from the concrete formwork. Characteristic method for manufacturing concrete products.