JPS6129891Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a supporting device for concrete formwork.

Conventionally, this type of support device was
Some of these are disclosed in Publication No. 1612 and Japanese Utility Model Application Publication No. 156342/1983. In the former method, a groove is provided in the center of the surface of the concrete foundation for placing reinforcing bars, and a pair of plates are erected on each side of this groove, and the concrete formwork (hereinafter referred to as formwork) is installed between the plates. )
The structure is such that the concrete foundation is placed on top of the gravel layer in the trench and is used by placing it on top of the gravel layer, but since it is difficult to achieve surface flatness with the gravel layer, the concrete foundation is placed on top of the gravel layer. The drawback was that it was difficult to align the height of the formwork that was installed horizontally to support it. In the latter case, multiple receiving metal fittings are driven into the trench,
The upper and lateral parts of the long inverted L-shaped base frame are supported by the shoulders on both sides of this receiving bracket, and the formwork is held on the upper lateral parts, so that the receiving bracket can be moved forward and backward. It is necessary to accurately determine the driving position of the receiving metal fitting so that there is no deviation in the width direction with respect to the receiving metal fitting, and there is a drawback that it takes time to adjust the driving position.

This invention was made in order to eliminate the drawbacks of the conventional ones described above, and it allows a formwork support plate having a formwork fitting part to be moved freely in the width direction of the stand on a stand having a support and a receiving part. By attaching an overhang to the frame that stabilizes the posture, it is possible to reliably construct a concrete foundation with the desired specifications in a short time without the hassle of conventional methods. The purpose is to provide a support device for formwork.

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

In FIG. 1, reference numeral 1 denotes a frame, and supports 2, 2 support horizontal parts 21, 21, which serve as receiving parts, respectively.
and a horizontal member 3 that connects both columns, and a horizontal part 2.
1 and 21 are respectively provided with locking protrusions 22 and 22 extending upward, and a plurality of overhang members 4, 4, . . . are attached to the cross member 3 in a direction perpendicular to its longitudinal direction. In the embodiment, for reinforcement, the upper part of the steel bar is bent into a letter shape to form horizontal parts 21, 21 and reinforcing parts 23, 23. When connecting the columns 2, 2 to each other, the positions of the horizontal parts 21, 21 supported by the pillars 2, 2 are adjusted so that they face each other at the same height and constitute a receiving part with a reinforcing bar insertion space A. Reference numeral 5 denotes an elongated formwork support plate, with elongated holes 51, 51 extending in the longitudinal direction protruding from both sides of the central part in the longitudinal direction, and a pair of opposing plates 52, 53 at each end. A form fitting part B is formed by standing upright. This formwork fitting part B
is composed of a pair of high and low opposing plates 52 and 53 in order to facilitate the fitting of formwork, which will be described later. However, since the width dimension of the concrete foundation is regulated by the outer corresponding plate 52, the inner The opposing plate 53 is not necessarily required. This formwork support plate 5 has elongated holes 51, 51.
horizontal portion 21 through the locking projections 22, 22, respectively.
21.

Next, how to use this formwork support device will be explained with reference to FIG. After digging a trench 6 in a predetermined ground and filling it with gravel or sand 7, a plurality of mounts 2 are installed.
It is driven into the trench 6 until the horizontal parts 21, 21 reach a predetermined height. The frames 1 are installed at predetermined intervals depending on the length of the formwork 8 to be used, and are installed at each horizontal portion 2.
1 and 21 belong to the same horizontal plane. Next, the mortar 9 is applied to the overhanging materials 4, 4...
Fix the pedestal 1 by driving it to a height exceeding .
Since the pedestal 1 has overhanging members 4, 4, . . . , it can be reliably fixed in a predetermined posture. Next, main reinforcement 101
Insert the lower part of the reinforcing bars 10 formed by organizing the stirrups 102 into a basket shape into the reinforcing bar insertion space A from the installation direction of the pedestals 1, and support the reinforcing bars 10 with the cross members 3 of each pedestal 1,
The formwork support plate 5 is placed on the horizontal parts 21, 21 by passing the locking protrusions 22, 22 through the elongated holes 51, 51, respectively. Next, the lower portions of the molds 8, 8 are inserted into the mold fitting portions B, B of the mold support plate 5, respectively, and held therein.

The formwork support plate 5 has the locking protrusions 2 through the long holes 51, 51.
2 and 22, even if the frame 1 is slightly shifted in the width direction with respect to the front and rear frames, when inserting the formwork 8 into the formwork fitting part B, the misaligned frame 1 will be removed. The opposing plate 52 or 53 of the formwork support plate 5 is pushed by the formwork 8, so that the formwork support plate 5 moves of its own accord, and the formworks 8, 8 are held at regular positions. Finally, the footing form 103 is installed and concrete 20 is poured between the formworks 8, 8 to complete the construction of the concrete foundation.

In addition, as long as the locking projection has a shape that can be inserted into the long hole of the formwork support plate to lock the formwork support plate,
It may be just one.

As described above, according to this invention, the formwork support plate and the pedestal are separated, the formwork is provided with an engaging protrusion extending upward in its receiving part, and the formwork support plate has a longitudinal length. By providing a hole and allowing the formwork support plate to be supported by the receiving part so as to be movable in the width direction of the pedestal through the engagement protrusion corresponding to the elongated hole, slight deviation in the driving position of the pedestal can be avoided. Even if there is a problem, the formwork can be held in the correct position by moving the formwork support plate, so there is no need to spend time driving the frame as in the conventional case. Furthermore, since the frame is installed by driving struts that hang down and extend from both sides of the receiving part, it is easy to level the receiving part, and by attaching the overhanging material in the direction that intersects the width direction, This overhanging material exhibits a posture stabilizing effect and the frame is reliably fixed in the correct position, making it possible to easily align the height of the formwork and achieve the desired accuracy in a short time without the hassle of conventional methods. Construction of concrete foundations can be carried out.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the concrete form support device according to this invention, and FIG. 2 is a diagram showing the usage state of the above embodiment. 1... Frame, 2... Support, 3... Horizontal member, 4...
Overhanging material, 5...Formwork support plate, 21...Horizontal part serving as a receiving part, 22...Locking protrusion, 51...Long hole,
52, 53...Opposing plate, B...Form fitting part. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A pedestal having a receiving part provided with a locking protrusion projecting upward, and in which pillars extending from both sides of the receiving part are connected to each other by a cross member to which an overhang is attached;
The formwork support plate has a long hole in the longitudinal direction through which the locking protrusion is inserted, and a formwork fitting part is formed at each end of the formwork support plate, and the formwork support plate is placed on the receiving part. A supporting device for concrete formwork.