JPS5929078Y2 - Concrete pouring equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a concrete placing device using a formwork, and is particularly suitable for constructing concrete structures on slopes and the like.

BACKGROUND ART Conventionally, when pouring concrete, a formwork and various members such as end pieces, separators, fasteners, etc., which are supported at a predetermined distance from the formwork, have been used.

However, such conventional structures have a drawback that they have a complicated structure, require a large amount of materials, and require a great deal of effort to assemble and dismantle the formwork.

Construction was extremely difficult, especially on slopes with poor terrain or footing.

This idea was made to solve the above-mentioned drawbacks of the conventional method, and it utilizes horizontal reinforcements embedded in concrete structures, and attaches hook-shaped parts to the ends of the horizontal reinforcements for tightening formwork plates. At the same time as forming a receiving part, a piece of wood is attached along the longitudinal direction of the formwork plate, and a wedge is inserted into the hook-shaped part by penetrating this piece of wood so that the formwork can be assembled. This eliminates the need for conventional separators, makes the structure simple and requires fewer parts, and makes it extremely easy to assemble and dismantle the formwork, reducing construction costs. The aim is to provide the equipment.

An embodiment of this invention will be described below with reference to the drawings.

In the figure, reference numerals 1 and 1' denote horizontal reinforcement sets that are connected to main reinforcements 2 that are arranged in the length direction of the structure to be installed, and are arranged at a required interval.

The horizontal reinforcement set 2 includes a plurality of horizontal members 3 arranged vertically at required intervals, and a vertical member 4 that connects these horizontal members 3.

A hook-shaped portion 5 and a form plate receiving portion 6 are formed at both ends of at least one horizontal member 3.

These parts 5 and 6 are usually formed by folding the end of the horizontal member 3 into a U-shape to form a hook-shaped part 4, and then bending the end part upward or downward to form a receiving part. But, but,
It is not limited to such a configuration.

In addition, in FIG. 1, one of the horizontal reinforcement sets 1 has hook-shaped parts 5 and form plate receiving parts 6 on both the upper and lower horizontal members 3, 3.
However, like the other horizontal reinforcement set 1', the hook-shaped part 5 forms only the upper horizontal member 3', and the lower horizontal member 3' only forms the form plate receiving part 6'. may be formed.

Next, for 7, plywood or light alloy plates that are normally used for formwork boards may be used, but for construction on terrain or slopes with poor footing, cardboard that has been treated with water resistance etc. It is advantageous to use paper boards such as the above because they are lightweight, easy to install, and inexpensive.

The form plate 7 is provided with a horizontally long through hole 8 through which the hook-shaped portion 5 formed at the end of the horizontal member 3 can be inserted.

It goes without saying that the position of this hole 8 is arranged to match the position of the horizontal member 3 of each horizontal reinforcement set.

Then, the formwork plate 7 is attached by inserting the hook-shaped parts 5 of the horizontal members 3 into the through holes 8, so that the outer ends thereof protrude from the outer surface of the formwork plate 7, and The side surface and the hook-shaped portion 5 form a driving hole 10 into which a wedge 9, which will be described later, is inserted.

Reference numeral 11 denotes a thick piece attached to the outer surface of the formwork plate 7 in its longitudinal direction, and a through-hole 12 for inserting a wedge 9 is provided at a position facing the through-hole 8 of the formwork plate 7. It is being

In the illustrated embodiment, a C-shaped material is used as the end material 11, but its shape and material may be changed as long as it is sufficient to strengthen the formwork board 7 against the pressure of concrete or mortar pouring. It is not a question of whether

The wedge 9 is driven into the above-mentioned driving hole 10 through the through-hole 12 of the thick piece 11 attached to the outer surface of the form board 7, whereby each of the above-mentioned members 1, 7. They are bonded together (see Figures 2 and 3).

In this case, the form plate 7 is received by the receiving portion 6 of the horizontal member 3, and the distance between the form plates 7, 7 is maintained.

When the apparatus is assembled in this manner, vertical reinforcements 2 are appropriately placed, and concrete is poured or mortar is sprayed.

After the concrete etc. have solidified, simply by pulling out the wedge 9, the fastening with the end piece 11 and the horizontal member 3 is released, and the form board 7 can be easily removed.

Then, the horizontal reinforcement set 1 or 1' is buried in poured concrete or the like.

When using the horizontal reinforcement set indicated by reference numeral 1 in FIG. 1, the wedge 9 is also driven into the hook-shaped portion 5 of the lower horizontal member 3 as shown in FIG. 3A, but as shown in FIG. When the transverse reinforcement set indicated by the reference numeral 1' is used, the wedge 9 is only the hook-shaped portion 5 of the upper transverse member 3, as shown in FIG.

As explained above, the concrete placing device of this invention utilizes a horizontal reinforcement set buried as reinforcement necessary for a concrete structure, and has a hook-shaped part and a receiving part at the end of the horizontal member of this horizontal reinforcement set. The hook-shaped portion protrudes from the through-hole provided in the formwork plate, and the spacing between the formwork plates is maintained, and the outer surface of the formwork plate is provided with a cut-out material having a through-hole through which a wedge is inserted. By attaching the wedges to the holes in the end thick material and driving them into the holes formed by the hook-like parts, it is possible to simultaneously place reinforcement in the horizontal reinforcement set and formwork plates without using conventional separators. Since it can be installed easily, the configuration is extremely simple and there are few parts, saving materials and making the construction easy, reducing construction costs and shortening the construction period. It is highly effective when applied to facilities with concrete structures such as surfaces.

[Brief explanation of drawings]

The drawings show one embodiment of this invention; Fig. 1 is a perspective view showing the device disassembled, Fig. 2 is a plan view showing a part of the assembled device in cross section, and Fig. Figure 3 is a longitudinal sectional side view of the same. 1.1'...Horizontal bars, 2...Vertical bars, 3
．． 3'...Horizontal member, 4...Vertical member, 5
...Hook-shaped part, 6...Receiving part, 7...
...Form board, 8...Through hole, 9...Wedge,
11... Thick timber, 12... Through hole.

Claims (1)

[Scope of utility model registration request] Forming a hook-shaped part and a receiving part for a form plate at the end of a member of a horizontal reinforcement set buried in a concrete structure, and making the hook-shaped part protrude outward from a through hole provided in the form plate, The inside of the form board is received by the receiving part, and a thick piece with a through hole is attached to the outside of the form board, and a wedge is inserted into the hooked part through the through hole. A concrete pouring device that is characterized by being able to tighten formwork.