JP2005068763A - Interval holding member for forming concrete placing space - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interval holding member for forming a concrete placing space, capable of coping with a shape of various interval holding members by a combination of few member constituting elements. <P>SOLUTION: This interval holding member 8 is embedded in a skeleton, after placing concrete, by holding an interval between mutually opposed both form panels P<SB>1</SB>and P<SB>2</SB>for forming the concrete forming space 16. The interval holding member 8 is composed of a first metallic body 9<SB>1</SB>having one end part installed on one form panel P<SB>1</SB>, a second metallic body 9<SB>2</SB>having one end part installed on the other form panel P<SB>2</SB>, and a connector 10 for connecting mutual both other end parts of the first and second metallic bodies 9<SB>1</SB>and 9<SB>2</SB>. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a spacing member for forming a concrete placement space.

  This type of spacing member holds the spacing between the two opposite formwork panels so as to form a concrete placement space, and is embedded in the housing after the concrete placement. For example, an interval holding member used for forming a partition wall is known to have a conical shape made of round steel. It is used by being inserted into both formwork panels that also serve as both upper end surfaces (see Non-Patent Document 1).

Also known as a spacing member used for forming the outer wall is a rod body having a male screw on each outer peripheral surface of both ends of a round steel and a cone into which at least one male screw of the rod body is screwed. (See Non-Patent Document 2)
Furthermore, as an interval holding member used when forming an outer wall with heat insulating building material on the inside, one end of round steel is bent into a bowl shape to form a locking part, and a male screw is formed on the outer peripheral surface of the other end Some of them consist of a rod and a cone threaded with its male thread.
Hizaki Form Industries Co., Ltd., “P2 Detailed View” [online], [searched on August 15, 2003], Internet <URL: http://www.hfip2.co.jp> Hata Neukaho, “Shaping construction of illustrated architecture”, 16th edition, Rigakusha, July 15, 1990, P26

  As described above, for example, when three types of walls are formed, a dedicated spacing member is required, but it is convenient if the configuration of various spacing members can be accommodated by a combination of a small number of component components. Become big.

  On the other hand, both the formwork panels that also serve as the heat insulating building material form a surface layer of the partition wall to provide a heat insulation function. For example, when one room is being heated and the other room is not heated, the heat of one room is dissipated to the other room side through a plurality of spacing members, and heating is performed. There was a problem that efficiency decreased.

  In view of the above, it is a first object of the present invention to provide the concrete placement space forming interval holding member that can conform to the form of various interval holding members by a combination of a small number of component components.

  The second aspect of the present invention is to provide the above-described interval holding member for forming a concrete placement space which can be adapted to the form of various interval holding members with a combination of a small number of member components and has a heat conduction suppressing function. Objective.

  In order to achieve the first object, according to the first invention, the space between the two opposite formwork panels is maintained so as to form a concrete placement space, and the concrete is placed in the housing after the concrete placement. In the spacing member, a first metal body having one end portion attached to one of the formwork panels, a second metal body having one end portion attached to the other formwork panel, and the first and second metal bodies There is provided a spacing member for forming a concrete placing space, comprising a connecting body for connecting the other end portions.

  Further, in order to achieve the second object, according to the second invention, the connecting body has heat insulating properties and connects the other end portions of the first and second metal bodies in a state of separating them. There is provided a spacing member for forming a concrete placement space that is formed as described above.

  According to the first invention, for example, if a plurality of two types of metal bodies are prepared, and two of the first types are connected as the first and second metal bodies by the connecting body, the first type spacing member is provided. In addition, if two members of the second type are connected as a first and second metal bodies by a connecting body, a second type of spacing member can be formed. If one of the types is connected as a first metal body and one of the second type is connected as a second metal body by a connecting body, a third type of spacing member can be configured. As described above, the first invention can adapt to the form of various spacing members by a combination of a small number of component elements, and has great convenience.

  According to the second aspect of the present invention, the heat propagated through the first metal body (or the second metal body) is suppressed (or prevented) from being propagated to the second metal body (or the first metal body). This can greatly reduce the heat dissipation from one side of the housing to the other.

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

  First, the first example will be described with reference to FIGS. 1 to 10. FIG. 1 is a partially broken perspective view of a formwork panel also serving as a heat insulating building material, and FIG. 2 is a partially broken view along line 2-2 in FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 2, FIG. 4 is a perspective view of the first embodiment of the spacing member, and FIG. 5 is a partially broken front view of the first embodiment of the spacing member. FIG. 6 is a perspective view of the main part showing the first stage of the mold assembling work, FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6, and FIG. 8 is a cross-sectional view of the main part showing the second stage of the mold assembling work. FIG. 9 is a perspective view of the main part of the formwork, and FIG. 10 is a cross-sectional view after placing the concrete, corresponding to FIG.

First, referring to FIGS, illustrating the configuration of a form panel P ₁ which also serves as a heat-insulating building materials. This formwork panel P ₁ is composed of a laminated type having a horizontally long rectangle as a whole, and is composed of a synthetic resin heat insulating panel 1 and one side of the heat insulating panel 1, that is, the side opposite to the surface on which concrete is placed. A metal corrugated panel 2 integrally laminated on the surface, and a metal bar member 3 having a transverse T-shaped cross section integrally joined to the upper end surfaces of the heat insulating panel 1 and the corrugated panel 2 over its entire length. Have. Also, paperboards 4 and 5 are integrally laminated on one side of the heat insulation panel 1 where the corrugated panel 2 is not laminated, that is, the side where the placed concrete contacts and the outer surface of the corrugated panel 2, respectively.

The heat insulation panel 1 is composed of a hard urethane foam that is highly heat-insulating and lightweight. The hard urethane foam has, for example, a density of 20 to 40 kg / m ³ and a thickness of 10 to 80 mm. Such a heat insulating panel 1 is formed by mixing isocyanate (manufactured by Huntsman Japan) and polyol (manufactured by Huntsman Japan) in a weight ratio of 62:38 and foaming the mixture at 55 ° C., for example.

  In addition, the corrugated panel 2 is made of a thin steel plate of 0.1 to 0.5 mm, has a rectangular shape the same size as the heat insulating panel 1, and has a crest so that high rigidity can be obtained with respect to a longitudinal load. 2m and trough 2v are arranged in the vertical direction. The higher the waveform height of the corrugated panel 2 is, the higher the rigidity is. However, in order to use it as a heat insulating building material, the height of the waveform is preferably 5 to 15 mm. As the corrugated panel 2, for example, a corrugated panel made of a thin steel plate (made by Shinchu Steel Co., Ltd.) having a plate thickness of 0.25 mm, a corrugated pitch of 31.8 mm, and a corrugated height of 9.0 mm is used.

  The bar member 3 having a transverse T-shaped cross section is formed by folding the strip-shaped thin steel plate into a double horizontal portion 3H and the folded edges of both plates up and down at right angles. The vertical portion 3 </ b> V is formed, and is formed to have substantially the same length as the horizontal width of the heat insulating panel 1 and the corrugated panel 2. The horizontal portion 3H is provided with a plurality of mounting holes 6 at intervals in the longitudinal direction.

  As shown in FIG. 3, the lower half portion of the vertical portion 3V of the bar member 3 is joined to the outer surface of the upper end portion of the paperboard 5 on the corrugated panel 2 side, while the upper half portion projects upward. The horizontal portion 3 </ b> H is in close contact with the upper end surface of the heat insulating panel 1, and the plurality of attachment holes 6 are opposed to the upper end surface of the heat insulating panel 1. Further, at the lower end edge portion of the heat insulating panel 1 and the paperboard 4 laminated thereon, there is a cutout portion 7 formed by being cut out from the paperboard 4 so as to reach the corrugated panel 2 over its entire length.

4 and 5, a concrete placing space forming interval holding member 8 is used to keep a gap between the two opposite formwork panels P ₁ to form a concrete placing space. It is buried in the body. As spacing members 8, the first metal body 9 ₁ attached one end to one of the form panel P _1, and the second metal body 9 ₂ attached to one end to the other form panel P _1, the It consists of the connection body 10 which connects between the other end parts of the 1 and 2nd metal bodies 9 ₁ and 9 ₂ .

In this embodiment, the first and second metal bodies 9 ₁ and 9 ₂ are each made of the first type metal body A ₁ and have the same structure. The first type of metal body A ₁ is formed by bending one end of a thin round steel into a hook shape to form a locking portion 12 and forming an external thread 13 on the outer peripheral surface of the other end. The connecting body 10 is made of stainless steel and has heat insulation properties. The connecting body 10 has a cylindrical shape and has a pair of female screw holes 14 that are open at both end faces. Both female screw holes 14 are blocked by a partition wall 15. The male screws 13 of the first and second metal bodies 9 ₁ and 9 ₂ are respectively screwed into the female screw holes 14 of the coupling body 10, whereby the both metal bodies 9 ₁ and 9 ₂ are coupled in a state of being separated by the partition wall 15. ing.

Next, with reference to Figures 6-9, the case of building a partition wall formwork F ₁ using a plurality of form panels P ₁ and the spacing member 8.

As shown in FIG. 6, there is a concrete placement space 16 on the foundation F ₀ , a plurality of lowermost formwork panels P ₁ on both sides thereof, and those corrugated panels 2 on the opposite side of the concrete placement space 16. And then connect them in a row. Next, as shown in FIG. 7, both locking portions 12 of the spacing member 8 are inserted into the heat insulating panel 1 through the mounting holes 6 of the bar members 3 on both sides. This operation is repeated so that a predetermined gap is formed between the two gap holding members 8 adjacent to each other, and the mold panel P ₁ on both sides is joined together by the plural gap holding members 8. Then, the next stage of the form panel P ₁ at the horizontal portion 3H of the bar member 3 in form panel P ₁ to the bottom of both sides of the shown in FIG. 8, a form panel P ₁ of the lowermost Build in a row with the same orientation. In this case, both end portions of the spacing member 8 that joins the lowermost formwork panel P ₁ are accommodated in the notches 7 at the lower edge of the next formwork panel P ₁ . Thereafter, the plurality of spacing members 8 are used to integrally join the form panels P ₁ on both sides of the next stage as described above. Such work is repeated as many times as necessary as shown in FIG. 9 to construct a mold F ₁ having a required height.

Thereafter, to complete the partition wall (building frame) W ₁ is implanted concrete 17 into concrete設空between 16 formwork F ₁ as shown in FIG. 10.

In such a configuration, for example, where one room C ₁ is in the heating, the other if the room C ₁ is not heated, a number of heat propagated through the first metal body 9 ₁ of spacing member 8 is adiabatic by gender coupling body 10 suppress the transmission to the second metal body 9 ₂ (or blocked) by the. As a result, the heat dissipation caused by the large number of spacing members 8 can be greatly reduced to prevent a reduction in heating efficiency.

  Next, the second example will be described with reference to FIGS. 11 and 12. FIG. 11 is a partially cutaway front view of the second embodiment of the spacing member, and FIG. 13 is a cross-sectional view of the main part of the outer wall, and the same reference numerals are given to the same elements as in the first example.

11 and 12, the spacing member 8 is used when an outer wall formwork F ₂ is constructed from a formwork panel P ₁ that also serves as a heat insulating building material and a plywood formwork panel P _2. in the first metal body 9 ₁ similarly first embodiment, a second metal body 9 _2, the more the thermally insulating connecting member 10. In this embodiment, the first and second metal bodies 9 ₁ and 9 ₂ have different structures. The first metal body 9 ₁ is made of the first type metal body A ₁ as in the first embodiment, and one end portion of a thin round steel is bent into a bowl shape to form a locking portion 12. A male screw 13 is formed on the outer peripheral surface of the end. The second metal body 9 ₂ is composed of the second type metal body A ₂ , and the metal body A ₂ includes a rod body 20 provided with male screws 18 and 19 on the outer peripheral surfaces of both ends of a thin round steel, and one male screw. 19 is made of a steel cone 22 screwed into a female screw hole 21 that opens to a small-diameter end face. The cone 22 has a screw shaft 23 protruding from its large diameter end face.

The heat-insulating connector 10 has the same structure as that of the first embodiment, is made of the same stainless steel as described above, has a pair of female screw holes 14 which are cylindrical and open on both end faces, and both female screws. The hole 14 is blocked by a partition wall 15. The first metal body 9 _first male screw portion 13 and the second metal body 9 ₂ of the other male screw 20 is screwed on both female screw hole 14 of the connector 10.

The first metal body 9 ₁ of the locking portion in the spacing member 8 12 is inserted into the insulating panel 1 through the mounting holes 6 of the bar member 3 existing in the same manner form panel P _1. The screw shaft 23 of the cone 22 in the second metal body 9 ₂ protrudes through the through hole 24 of the plywood form panel P ₂ , and the protruding portion is screwed into the female screw hole 26 of the foam tie 25. A rib washer 30 is inserted into the male thread portion 27 of the foam tie 25 in order to fix the two round pipe horizontal tabs 29 to the round pipe vertical tab 28, and a nut 31 is screwed into the threaded portion protruding from the rib washer 30. It is.

As shown in FIG. 13, after concrete 17 is driven into the concrete placement space 16 of the formwork F ₂ to complete the outer wall (frame) W ₂ , the plywood formwork panel P ₂ is removed, and cone 22 having a threaded shaft 23 which projects from the outer wall W ₂ side is removed from the second metal body 9 _2, recesses after the cone 22 is filled with mortar m.

Also in this case, the heat propagation from the first metal body 9 ₁ to the second metal body 9 ₂ and the heat propagation from the second metal body 9 ₂ to the first metal body 9 ₁ are suppressed by the heat insulating connecting body 10. (Or blocked).

  FIG. 14 is a cross-sectional view of the main part of the outer wall formwork in the third example.

This spacing member 8 is intended to be used in constructing the external wall formwork F ₃ than plywood formwork panel P ₂ of the same type, the first metal body 9 ₁ similarly first embodiment, the second metal The body 9 ₂ and the heat insulating connecting body 10 are included. In this embodiment, the first and second metal bodies 9 ₁ and 9 ₂ are each made of the second type metal body A ₂ and have the same structure. That is, the third embodiment of the spacing member 8 is one in which the first metal body 9 ₁ in the second embodiment was formed in the same second metal body 9 of the _second embodiment. In this embodiment, the same elements as those in the second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

As described above, for example, a plurality of two types of metal bodies A ₁ and A ₂ are prepared, and as shown in FIGS. 4 and 5, two first types A ₁ are converted into first and second metal bodies 9 ₁ , If the connecting body 10 is connected as 9 ₂ , the first type spacing member 8 can be formed, and as shown in FIG. 14, the second type two objects A ₂ are connected to the first and second metals. If the bodies 9 ₁ , 9 ₂ are connected by the connecting body 10, the second type spacing member 8 can be formed. Further, as shown in FIG. 11, one first type A ₁ is replaced with the first metal. it can be configured as a body 9 _1, also a second type of the third type when connected by the connecting member 10 of one of those a ₂ as the second metal body 9 ₂ of spacing members 8. As described above, the present invention can adapt to the form of the various spacing members 8 by combining a small number of member constituent elements, and has great convenience.

In the formwork panel P ₁ , the bar member 3 can be omitted, and the connecting body 10 may be made of a synthetic resin from the viewpoint of heat insulation.

It is a partially broken perspective view of the formwork panel which serves as a heat insulating building material. It is a partially broken top view which follows the 2-2 line of FIG. It is sectional drawing which follows the 3-3 line of FIG. It is a perspective view of 1st Example of a space | interval holding member. It is a partially broken front view of 1st Example of a space | interval holding member. It is a principal part perspective view which shows a formwork assembly operation | work. It is sectional drawing which follows the 7-7 line | wire of FIG. It is principal part sectional drawing which shows a formwork assembly operation | work. It is a principal part perspective view of a formwork. It is sectional drawing which shows after concrete placement, and corresponds to FIG. It is a partially broken front view of 2nd Example of a space | interval holding member. It is principal part sectional drawing of an example of the form for outer walls. It is principal part sectional drawing of an outer wall. It is principal part sectional drawing of the other example of the form for outer walls using 3rd Example of a space | interval holding member.

Explanation of symbols

8 ……………… Spacing members 9 ₁ , 9 ₂ ...... First and second metal bodies 10 ............ Insulating coupling body 16 ............ Concrete placement space P ₁ , P ₂ ... … Formwork panel W ₁ …………… Partition wall (frame)
W ₂ …………… Outer wall (frame)

Claims (2)

The space between the two opposite formwork panels (P ₁ , P ₂ ) is maintained to form the concrete placement space (16), and the concrete is placed in the frame (W ₁ , W ₂ ) after the concrete placement. in the spacing members, one end one of the formwork panel (P _1, P ₂₎ to the first metal body which is attached to one end portion (9 _1), to the other of the formwork panel (P _1, P ₂₎ a second metal body which is attached to (9 _2), characterized by comprising further a connecting member (10) for connecting the two other ends of the first and second metal body (9 _1, 9 ₂₎ Spacing member for forming concrete placement space. The connecting body (10) has heat insulating properties and is formed so as to connect the other end portions of the first and second metal bodies (9 ₁ , 9 ₂ ) in a separated state. The interval holding member for forming concrete placing space according to claim 1.