JPH08135185A - Connecting tool for form - Google Patents

Abstract

PURPOSE: To prevent the dislocation of plate-like heat insulating material by opening a pair of first end part storage parts, enclosing the end parts of one of plate-like heat insulators disposed opposedly to each other, in one direction, while opening a pair of second end part storage parts, enclosing the end parts of the other plate-like heat insulator, in the other direction, and connecting with a fixed clearance respectively between the first end part storage parts and between the second end part storage parts. CONSTITUTION: Connecting means 40 are plurally disposed being spaced by the specified distance at the connecting part of upper and lower plate-like heat insulators. The end parts of the upper and lower plate-like heat insulators are thereby enclosed partially in first and second end part storage parts 41, 42. A clearance between the mutually opposed plate-like heat insulators is set to the fixed value by a connecting part 43. In the connecting means 40, a pair of end part storage parts 41, 41 are both opened in one direction, while a pair of end part storage parts 42, 42 are both opened in the other direction, and a between the first and second end part storage parts 41, 41 or 42, 42 is set to the fixed value by the connecting part 43.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a formwork connector.

[0002]

2. Description of the Related Art As a foundation of a general wooden building, for example, as shown in FIG. 10, a concrete 2 is cast on a rubble stone 1 which has been rammed with a rammer, and a footing 3 is further cast. Then, the cloth foundation 4 is erected on the footing 3, and the anchor bolt 5 inserted through the cloth foundation 4
It is known that the base 6 is fixed by.

When constructing such a foundation, the ground may freeze by 30 to 40 cm or more in winter depending on the area. However, when the ground freezes like this, the foundation is lifted disproportionately, which may cause the building to be out of order or damaged. Therefore, in cold regions and the like, the height of the foundation is higher than in warm regions.

[0004]

By the way, when constructing the foundation of such a house, skilled workers such as formworkers are required. However, today, the shortage of skilled craftsmen such as formworkers is becoming more serious. Therefore, today, there is a demand for a foundation construction method that can be easily implemented even when constructing a tall foundation.

Further, today, there is a demand to reduce the use of limited earth resources such as wood forming control panels or flutters. In view of such circumstances, the present invention is an indispensable formwork connection for a foundation construction method capable of constructing a foundation by a simple work and contributing to reduction of use of earth resources. The purpose is to provide ingredients.

[0006]

A formwork connector according to the present invention for achieving the above-mentioned object is constructed by abutting the end faces of plate-like heat insulating materials arranged opposite to each other in the vertical or horizontal direction. A formwork connector used in parallel to form a foundation formwork for a building, wherein the end portions of one of the plate-shaped heat insulating materials arranged to face each other are respectively housed, and together. A pair of first end housing portions that are opened in one direction and a pair of the other end portions of the plate-shaped heat insulating material that are arranged to face each other are respectively housed, and a pair of both ends that are opened in the other direction are formed. It is characterized by comprising a second end portion storage portion and a connecting portion for setting a constant distance between the pair of first and second end portion storage portions.

[0007]

By arranging the formwork connector having the above structure at the abutting portions of the plate-shaped heat insulating materials facing each other, the plate-shaped heat insulating materials which are butted up and down or left and right and are opposed to each other are prevented from slipping together. It can be prevented. Further, since the connecting portion for setting the separation distance to be constant is formed in the width direction of the mold, the mold does not expand at the abutting portion. Furthermore, if such a connecting tool is used, it is possible to install the plate-shaped heat insulating material by abutting it in the vertical direction, so that only the plate-shaped heat insulating material arranged above can be replaced, and the height of the foundation can be freely adjusted, It can be easily performed when constructing foundations of any size.

Further, according to the construction method of the foundation using the connector according to the present invention, since it is not necessary to use the formwork made of the control panel, the amount of wood used is reduced and the earth resources can be protected. it can. Furthermore, it is also possible to eliminate the flapping that is normally placed on the side, and it is possible to suppress the use of wood used as this flapping.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A construction method of a foundation using a mold connecting tool according to the present invention will be described below with reference to the drawings.

FIG. 1 conceptually shows a construction procedure of a foundation of a general house using a formwork formed according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the formwork in an exploded manner. Is. FIG. 3 is a cross-sectional view after placing concrete.

[0011] In this wooden construction, a slotted hole 11 having a width of about 450 mm is laid in a groove dug around the residential land, and it is sufficiently compacted by a rammer. After that, the discarding concrete 12 is cast on the split hole 11 by about 60 mm to make the upper surface flat, and the footing 13 and the cloth foundation 14 are erected on the upper surface.

In the present embodiment, the formwork forming these foundations is formed of two kinds of plate heat insulating materials 20, 20 and plate heat insulating materials 50, 50 made of foamed synthetic resin instead of a control panel. Has been done. And these plate-shaped heat insulating materials 2
0 and 20 and the plate-shaped heat insulating materials 50 and 50 are spaced from each other by a predetermined distance and are arranged to face each other.

These plate-like heat insulating materials 20, 50 of this embodiment
Is, for example, a heat-insulating panel having expanded extruded polystyrene as a core material and flexible face materials adhered to both surfaces thereof,
Specifically, a commercially available product under the name of K panel from Kanegafuchi Chemical Industry Co., Ltd. is used.

The plate-shaped heat insulating material 20 is capable of integrally constructing the footing 13 and the lower portion of the cloth foundation 14, and forms a substantially convex shape when they are opposed to each other. The plate-shaped heat insulating material 50 abuts the upper part of the plate-shaped heat insulating material 20, and is formed in a substantially rectangular shape.

As described above, the plate-shaped heat insulating materials 20 and 20 made of foamed synthetic resin and the plate-shaped heat insulating materials 50 and 50 arranged so as to face each other are separated by a predetermined distance even when concrete is poured. However, in the present embodiment, it is supported in a predetermined size as follows.

That is, at the bottom of the plate-shaped heat insulating material 20, 20 arranged on the upper part of the discarded concrete 12, as shown in an enlarged view in FIG.
A fixture 17 provided with 7a is provided. The fixture 17 may be made of synthetic resin or metal.

On the portions other than the bottoms of the plate-shaped heat insulating materials 20, 20, in addition to the fixing tool 17, a tightening tool 30 is installed to ensure the connection at the upper part. This tightening tool 30
As shown in FIGS. 2 and 3, the bar-shaped member 21 inserted between the heat insulating materials and the plate-shaped member 3 arranged outside the panel.
1 and 31, cones 32 and 32 that regulate the movement of the panel inside the panel, and nut members 33 and 33 that prevent the plate-shaped member 31 from coming off on the outside of the panel.

Since such a tightening tool 30 can be freely adjusted in length, it can be inserted between the plate-shaped heat insulating materials 20, 20 and tightened by the cone 32, the nut member 33, etc. It becomes possible to adjust the space between the heat insulating materials 20, 20 at a constant interval.

In this way, the distance between the plate-shaped heat insulating materials 20, 20 is made constant, but a pair of plate-shaped heat insulating materials is further provided on the upper part of the plate-shaped heat insulating materials 20, 20 thus integrated. 50 and 50 are arranged in abutment with each other.

In order to set the separation distance between the plate-shaped heat insulating materials 50, 50, the tightening tool 30 is employed as in the case of the plate-shaped members 20, 20. However, the length of the rod-shaped member is shorter than that used for the plate-shaped heat insulating material 50.

When the length of the plate-shaped heat insulating material 50 is long, it is preferable that the fastening members 30 are scattered and installed at positions having different heights as needed. On the other hand, the plate-shaped heat insulating material 2
As shown in an enlarged view in FIG. 5, a plurality of connecting members 40 for setting a constant separation distance, which is an essential part of the present invention, are interposed between the abutting ends of the edge of the heat insulating material 50 and the plate-shaped heat insulating material 50. To be done.

The connecting tool 40 includes a pair of end housings 41, 41 both of which have openings in one direction, and a pair of end housings 42, 42 of which both have openings in the other direction. Second
And a connecting portion 43 for setting a constant separation distance between the end housing portions 41, 41 or 42, 42.

The connecting member 40 can be formed of a metal or resin, but when the connecting member 40 is formed of, for example, a steel plate, it may have a thickness of about 0.5 to 0.8 mm. . Further, in the case of forming from a steel plate, as shown in FIG. 6, if one steel plate 45 is prepared, a notch is made in the solid line part, and the two-dot chain line part is bent The connector 40 can be formed.

The space between the space portions S of the end portion accommodating portions 41 and 42 of the connecting member 40 is set to the plate-like heat insulating materials 20 and 50.
It is formed slightly narrower than the thickness of. Thereby, when the end portions of the plate-shaped members 20 and 50 are fitted into the end portion storage portions 41 and 42, these end portions are tightly held. The length T of the connecting portion 43 is set to be the same as the width of the cloth foundation 14.

As shown in FIG. 1, a plurality of such connecting members 40 are arranged at predetermined intervals at the connecting portions of the upper and lower plate-shaped heat insulating materials 20 and 50. As a result, the upper and lower plate-shaped heat insulating materials 20 and 50 are partially accommodated in the first and second end accommodating portions 41 and 42, and the gap between the edge end surfaces is regulated to be impossible. It Moreover, the plate-shaped heat insulating materials 2 facing each other
The separation distance between 0 and 20 and between the plate-shaped heat insulating materials 50 and 50 is set to be constant by the connecting portion 43.

On the other hand, when constructing the foundation of the building,
In this way, a pair of plate-shaped heat insulating materials 20 and 5 connected vertically
With 0 as a reference, the plate-shaped heat insulating materials 20 and 50 are arranged side by side in parallel with each other. At this time, it is advisable to install the fastening members 70, 70 shown in FIG. 7 between the plate-shaped heat insulating materials 20, 20 or between the plate-shaped heat insulating materials 50, 50 that are abutted in the lateral direction. This tightening tool 70, 7
0 is formed by removing the connecting portion 43 of the connecting tool 40. Therefore, if one connecting tool 40 is prepared, the two fastening tools 70, 70 can be created.

If such tightening tools 70, 70 are arranged at the abutting portions between the plate-shaped heat insulating materials 20, 20 or between the plate-shaped heat insulating materials 50, 50, respectively, they can be more securely tightened and held.

In this way, according to the foundation formwork constructed around the building, the separation distance between the plate-shaped heat insulating materials 20, 20 arranged facing each other is kept constant by the connecting portion 43. Therefore, no bending occurs.

Therefore, according to this embodiment, the plate-shaped heat insulating material can sufficiently serve as a mold without installing a flap around it. Concrete is poured into the molds thus assembled so as to face each other. At that time, between the plate-shaped heat insulating materials 20, 20 and between the upper formwork forming members 50, 50, the fixing tool 17, the tightening tool 30,
Since they are connected to each other by the connecting tool 40, there is no risk of the formwork being broken even if the pressure of the concrete flowing in acts.

In this way, as the concrete hardens over time, it is possible to construct the footing 13 and the cloth foundation 14 according to the dimensions. In addition, in such a foundation, the bottom part fixing tool 17, the fastening tool 30, and the connecting tool 40 are each fitted and killed in the concrete.

When it is desired to construct a foundation higher than the above foundation, a taller plate-shaped heat insulating material may be prepared and this taller plate-shaped heat insulating material may be attached to a lower plate-shaped heat insulating material. . This makes it possible to easily construct a tall foundation.

Therefore, even when constructing a tall foundation in a cold region, no extra work is required. Thus, according to the present embodiment, whether it is a tall foundation or a short foundation, it is possible to integrally construct from the footing portion to the cloth foundation by placing concrete once,
And since it is not necessary to dispose flutter around,
The construction period can be shortened.

Further, the plate-shaped heat insulating material 20 and the plate-shaped heat insulating material 5
Since 0 also functions as a heat insulating material, of course, even if this concrete pouring is performed in the winter, the plate-shaped heat insulating materials 20 and 50 exhibit excellent heat insulating properties, whereby the moisture in the concrete is hardened. There is no fear of freezing before doing. In addition, of course, after the hardening of the concrete, it exhibits an excellent heat insulating property, so that it can contribute to the heat insulating property of the room.

Further, such a frame has a weight of about ⅕ as compared with the case of being formed by a control panel, and is easy to carry. Furthermore, since the plate-shaped heat insulating materials 20 and 50 made of such a heat insulating material can be formed by extrusion molding,
A long product can be easily formed.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made. For example, the material and shape of the connector 40 are not particularly limited to the embodiment. For example, as shown in FIG.
If the connecting portion 43 'of the connecting tool 40 is rod-shaped, the resistance of the concrete can be further reduced.

Further, the connector 70 shown in FIG. 9 can be adopted. In this connecting tool 70, the connecting portion 43 that is integrally formed in FIG. 5 is configured to be removable, and in this connecting tool 70, the connecting portion 71 is formed separately.
Further, projections 71a, 71a are provided at both ends of the connecting portion 71 so as to project. Such a connecting portion 71 may be detachably engaged with the locking holes 72, 72 on the main body side.

Further, in the above-mentioned embodiment, the heat insulating panel in which the flexible face material is adhered to both sides of the core material made of polystyrene is adopted, but this face material is not always necessary. Further, in the above-described embodiment, the foundation with footing was described, but it goes without saying that the present invention can be applied to a foundation without footing. Furthermore, it goes without saying that the formwork described above can also be applied to foundations that do not require heat insulation.

[0038]

As described above, when the formwork connector according to the present invention is arranged at the abutting portion of the plate-shaped heat insulating material,
It is possible to prevent the plate-shaped heat insulating materials on the left and right and on the top and bottom from slipping together.
Further, since the connecting portion for setting the separation distance to be constant is provided in the width direction of the mold, the mold does not expand at the abutting portion. Furthermore, if such a connecting tool is used, it is possible to install the plate-shaped heat insulating material by abutting it in the up-and-down direction, so that by exchanging only the plate-shaped heat insulating material arranged above, the height of the foundation can be freely adjusted, It can be easily performed when constructing foundations of any size.

Further, when the foundation is constructed by using the connecting tool according to the present invention, since it is not necessary to use the mold made of the control panel, the amount of wood used is reduced and the earth resources can be protected. Furthermore, it is also possible to eliminate the flapping that is normally placed on the side, and it is possible to suppress the use of wood used as this flapping.

[Brief description of drawings]

FIG. 1 is a perspective view conceptually showing a construction procedure of a foundation of a general house using a formwork connector according to an embodiment of the present invention.

FIG. 2 is an exploded cross-sectional view of a mold forming the foundation.

FIG. 3 is a cross-sectional view after placing concrete in the same mold.

FIG. 4 is a perspective view of a fixture used in the embodiment.

FIG. 5 is a perspective view of a connector used in the embodiment.

FIG. 6 is a development view of a plate material before bending the connector used in the embodiment.

FIG. 7 is a perspective view of a tightening tool adopted in the embodiment.

FIG. 8 is a perspective view of a connector according to a second embodiment of the present invention.

FIG. 9 is an exploded perspective view of a connector according to a third embodiment of the present invention.

FIG. 10 is a perspective view of a conventional foundation.

[Explanation of symbols]

 20, 50 Plate-shaped heat insulating material 40 Coupling tool 41 First end storage section 42 Second end storage section 43, 43 ', 71 Connection section

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area E04G 9/10 103 B

Claims (1)

[Claims] 1. A formwork connection used for forming a foundation formwork of a building by arranging side edges of plate-shaped heat insulating materials facing each other in a vertical direction or in a horizontal direction while abutting each other. A pair of first end storage portions that respectively store the end portions of the one plate-shaped heat insulating material that is arranged to face each other and that are open in one direction, and that face each other. And a pair of first and second end portion storage portions that respectively store the end portions of the other plate-shaped heat insulating material that is disposed as a pair and are opened in the other direction. A connecting part for a formwork, comprising a connecting part for setting a constant distance between the parts.