JPH0414597Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention (industrial application field) This invention is a device that is removably attached to a pair of pins protruding from a support, and a pair of base parts on the support. This invention relates to a fixture for fixing formwork and fabric foundation formwork.

(Prior art) A conventional fixture is formed into a nearly gate-shaped cross section by a pair of side walls and a top wall, and when the pin on the support frame is inserted into the long hole of the base mold, the fixture is By attaching it to the pin, the formwork for the base part is pressed and fixed to the support by the wedge action of the fixture, and the formwork for the fabric foundation part is positioned on the support by one side of the fixture. It was becoming regulated.

(Problem that the invention aims to solve) However, since this conventional fixture has a simple gate shape with both side walls extending parallel to each other, it is difficult to place the formwork for the fabric foundation on the support. There is a problem that the lower end of the formwork for the cloth foundation part tends to shift on the support when concrete is poured, and the concrete cannot be fixed by pressure welding. When the liquid flows out from the long holes of the formwork between the side walls of the fixture and solidifies, there is a problem in that it becomes difficult to remove the fixture from the pins on the support.

Structure of the device (means for solving the problem) This device was created by paying attention to the above-mentioned problems, and includes a device that is removably attached to a pair of pins protruding from the support. A fixture for fixing a pair of base part formwork and fabric foundation part formwork on the support is formed into a substantially portal-shaped cross section by a pair of side walls and a top wall having a pin fitting part. A first wedge portion is provided between the top wall and the lower edges of both side walls for clamping and fixing the formwork for the base portion with a support, and a fabric foundation portion is provided between the both side walls. A structure is adopted in which a second wedge part is provided for clamping and fixing the formwork to the regulating part on the support.

(Function) Therefore, according to the fixture of this invention, the formwork for the base part and the formwork for the fabric foundation part can be firmly clamped and fixed on the support by the action of the first and second wedge parts. This makes it possible to reliably prevent the possibility of displacement of the formwork during concrete pouring.In addition, as the concrete is poured, the concrete flows through the long holes on the base formwork to the fixing fixtures. Even if it flows out between the side walls and solidifies, the fixture can be easily removed from the pins on the support and each formwork can be removed.

(Example) Hereinafter, an example of this invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, a support 3 placed on a paving stone 2 in a groove 1 provided at a position where foundation concrete is placed is a base plate as a receiving plate made of a thin metal plate such as iron. 4 and a support member 5 made of a metal wire of an iron plate. At both ends of the upper surface of the board 4, a pair of locking pieces 6 are protruded to form an upwardly opening locking part 7, and at the center of the upper surface of the board 4, there are a pair of left and right locking parts each having an approximately inverted L-shaped cross section. Projection piece 8
A fitting portion 9 opening inward is formed by protruding from the fitting portion 9 .

At the lower ends of both leg pieces 10 of the support member 5, engagement pieces 11 extending in the front and rear direction that can be fitted into and engaged with the fitting portions 9 on the substrate 4 are welded and fixed, respectively, and at the upper ends of both leg pieces 10, the engagement pieces 11 are fixed to the lower ends of both leg pieces 10, which are arranged in a direction substantially opposite to each other when viewed from the front. L-shaped support piece 12
is fixed by welding. 1 horizontal leg between 10 legs
3 is fixed by welding, and the support piece 1 is fixed in the middle part.
The inner lower end of 2 is fixed by welding. A support recess 14 is formed at the center of the upper part of the support member 5 by the support pieces 12 and the crossbars 13, and a pair of deformation-preventing frame-shaped parts 15 are formed on both sides of the support recess 14.

As shown in FIGS. 1 to 4, both support pieces 1
A pair of pins 17 constituting the fixing member 16 are protruded from the upper outer end of 2, and an engagement groove 17a is provided at the upper end of the pin 17.
is similarly formed by press working, and a break-off notch 17b is formed at the base by press working. Then, while bending the lower ends of both leg pieces 10 of the support member 5 inward, both engaging pieces 11 are fitted and engaged with the fitting portions 9 on the substrate 4, so that the support member 5 is placed on the substrate 4. The support 3 can be made by assembling the

A thin plate-like detachment prevention plate 18 is attached to the support member 5 of each support 3 by fitting the pin 17 into the insertion hole 18a at both ends, and the leg pieces 10 are engaged while maintaining a constant spacing. The piece 11 is the fitting part 9 of the board 4
It prevents you from leaving. Also, each support 3
Vertical and horizontal reinforcing bars 19 and 20 for the cloth foundation of the foundation concrete are supported on the support recess 14 of the support member 5 so as to span the support recess 14, and reinforcing bars 21 for the base part are supported at the top of both ends of the horizontal beam 13. is supported.

As shown in FIG. 2, on both sides of the support 3, a base part formwork 22 having a substantially inverted L-shaped cross section is erected and supported at its lower end on the hook part 7 of the board 4. The upper inner edge is supported on both support pieces 12 of the support member 5. In this embodiment, an inner elongated hole 23 is provided at the inner edge of the upper piece of the base part formwork 22.
and outer long holes 24 are formed at intervals, depending on the width of the base part of the foundation concrete, that is, the arrangement interval of the pair of base part formworks 22,
The pin 17 on the support member 5 is selectively fitted into the inner elongated hole 23 or the outer elongated hole 24.

As shown in FIG. 1, FIG. 3, and FIG.
A lid plate 25 is placed on each of the two. In this embodiment, a long hole 26 is formed on the outer edge of the cover plate 25.
are formed at predetermined intervals, and the long holes 26 are adapted to fit into the pins 17 on the support member 5. Further, a regulating piece 27 serving as a regulating portion is bent upwardly at the inner edge of each cover plate 25.

With the cover plates 25 in this attached state, a pair of fabric foundation formworks 28 are supported on each cover plate 25. At this time, the lower end of each formwork 28 is connected to the regulating piece 2 on the cover plate 25.
7 to restrict inward movement. In this embodiment, the leg piece 10 of the support member 5 is located directly below the formwork 28 for each fabric foundation, and the formwork 28
The weight of 8 is supported in a stable state.

As shown in FIGS. 1 to 5, with the base part form 22, cover plate 25, and cloth foundation part form 28 supported on the support member 5 of the support 3, both pins 17 are A fixing member 29 constituting the fixing member 16 is removably attached. This fixture 29 is formed into a substantially gate-shaped cross section by a pair of side walls 29a and a top wall 29b, and the top wall 29b has an insertion hole 30a with a larger diameter than the pin 17 and an engagement groove 17a on the pin 17.
A moving groove 30b that can be engaged with a slight gap between
A pin fitting portion 30 is formed.

As shown in FIG. 4, an inclined surface 31 is provided at the lower end edge of both side walls 29a of the fixture 29, and this inclined surface 31 creates a gap between the top wall 29b and the lower end edge of both side walls 29a. a first wedge portion 3 for clamping and fixing the base portion formwork 22 with the support 3;
2 is formed. Also, as shown in Figure 5,
The distance between the both side walls 29a of the fixture 29 is configured to gradually widen from one end to the other end, and due to this configuration, the formwork 28 for the fabric base portion is placed between the both side walls 29a and is regulated on the cover plate 25. A second wedge portion 33 is formed to be clamped and fixed to the piece 27. Further, as shown in FIG. 3, the distance between the side walls 29a of the fixture 29 is formed so as to gradually widen toward the lower end, and the lower end opening is configured to be wider.

Therefore, after the pin 17 is inserted through the insertion hole 30a of the pin fitting part 30 on the fixture 29, the fixture 29 is struck and moved from the chain line position in FIGS. 4 and 5 in the direction of the arrow. and. As shown by the solid line in the figure, the fixing tool 29 is moved so that the lower end edge of one side wall 29a is moved along the base mold 22 while the engagement groove 17a of the pin 17 is engaged with the movement groove 30b. The wedge action of the first wedge part 32 presses and fixes the base part formwork 22 and the cover plate 25 in close contact with the support member 5, and the action of the second wedge part 33 secures the base part formwork 22 and the cover plate 25 in close contact with the support member 5. The formwork 28 is pressed against and fixed to the regulating piece 27 on the cover plate 25.

In this formwork assembly state, since the upper inner edge of the base part formwork 22 and the outer edge of the cover plate 25 are fixed on the support 3 by the fixing member 16, the pair of cloth foundation parts Even if pressure is applied to the inner surface of the base form 22 when concrete is poured from between the upper ends of the form 28 and the base of the foundation concrete and the cloth foundation are integrally formed at the same time, the base There is no wobbling or lifting of the formwork 22 for the fabric foundation.
8, there is no risk of tilting or the like. Therefore, a base portion having a predetermined width can be reliably formed, and a vertical cloth foundation portion can be formed accurately.

After forming the foundation concrete, when the fixing members 29 of each fixing member 16 are moved from the solid line position in FIGS. 4 and 5 in the direction opposite to the arrow, the pins 17 are inserted into the insertion holes of the fixing members 29. 30a, the fixture 29 can be removed from the pin 17. At this time, since the distance between the side walls 29a of the fixture 29 is formed so as to become wider toward the lower edge as shown in FIG.
Even if concrete flows out between the side walls 29a of the fixture 29 from the pins 3 and 24 and solidifies, the fixture 29 can be easily removed from the pin 17.
In this state, the fabric base part form 28, the base part form 22, and the cover plate 25 are released from being fixed to the support 3, and the fabric base part form 28, the cover plate 25
And the base part formwork 22 can be released from the foundation concrete. Thereafter, by hitting each pin 17 laterally, the pins 17 can be easily broken off at the notches 17b.

Note that this invention is not limited to the configuration of the above-mentioned embodiment, and the gist of this invention may be modified, for example, by configuring the base part mold 22 and the lid plate 25 to be integrated into one piece. It is also possible to change the structure of each part arbitrarily within a range that does not deviate from the above.

Effects of the device As detailed above, this device has the advantages of the first and second
By the action of the wedge part, the formwork for the base part and the formwork for the fabric foundation part can be firmly clamped and fixed on the support, and there is no possibility of the formwork shifting during concrete pouring. Moreover, even if concrete flows out from the long holes on the base formwork between the side walls of the fixing device and hardens during concrete pouring, the fixing device can be easily removed from the pins on the support. It has the excellent effect that it can be easily separated and each formwork can be removed.

[Brief explanation of the drawing]

Figure 1 is a partial cross-sectional view showing an example of a formwork assembly structure that embodies this idea, and Figure 2 is an exploded view of the substrate, support member, detachment prevention plate, base formwork, and fixture. A perspective view, FIG. 3 is a partial cross-sectional view showing an enlarged portion of the fixing member in FIG. 1, and FIG.
A partial cross-sectional view taken along the line A-A in the figure, FIG.
It is a partial cross-sectional view taken along the line BB in the figure. 3... Support tool, 5... Supporting member, 17... Pin, 22... Formwork for base part, 27... Regulating piece as a regulating part, 28... Formwork for cloth foundation part, 29...
...Fixing tool, 29a...Side wall, 29b...Top wall, 3
0... Pin fitting part, 31... Inclined surface, 32... First wedge part, 33... Second wedge part.

Claims (1)

[Claims for Utility Model Registration] 1. A pair of pins 17 protruding from the support 3 are removably attached, and a pair of base molds 22 and fabric foundation molds are mounted on the support 3. The fixture for fixing the frame 28 is formed into a substantially gate-shaped cross section by a pair of side walls 29a and a top wall 29b having a pin fitting part 30, and there is a space between the top wall 29b and the lower edge of both side walls 29a. A first wedge part 32 is provided for clamping and fixing the formwork 22 for the base part with the support 3, and a formwork 28 for the cloth foundation part is provided between the both side walls 29a.
A fixing device for a formwork for foundation concrete, characterized in that a second wedge portion 33 is provided for clamping and fixing the material to a regulating portion 27 on a support 3. 2. The fixing device for a foundation concrete form according to claim 1, wherein the first wedge portion 32 is formed by providing an inclined surface 31 on the lower edge of both side walls 29a. 3. The second wedge portion 33 is formed by gradually widening the interval between the side walls 29a from one end to the other.
Fixings for formwork for foundation concrete as described in section.