JP3229662U - Insulation fixture and insulation fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating material fixture and a heat insulating material fixing structure capable of preventing the heat insulating material from falling off from a side surface of a building structure and improving the work efficiency of installation of the heat insulating material on the building structure. SOLUTION: The heat insulating material fixture 10 for fixing a plate-shaped heat insulating material 3 arranged on the side surface of a concrete building structure 1 to the building structure, and is between both side surfaces of the building structure. The rod 20 for maintaining the mold spacing is penetrated and fixed, and the screwed portion 21 formed at the end of the rod protrudes to the outside of the side surface of the building structure, and the heat insulating material is inside the rod. A fixing portion that is arranged on the side surface of the building structure so that the screwed portion is buried, and is screwed and fixed to the screwed portion embedded inside the heat insulating material from the outside of the side surface 1a of the building structure. 11 and a contact portion 15 that abuts on the outer surface of the heat insulating material are provided. [Selection diagram] Fig. 2

Description

The present invention relates to a heat insulating material fixture and a heat insulating material fixing structure for fixing a heat insulating material arranged on a side surface of a building structure to the building structure.

As a method of arranging the heat insulating material on the building structure, a method of fixing with an adhesive or double-sided tape is usually adopted (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2005-9291

However, the plate-shaped heat insulating material formed by concrete molding on site and arranged on the surface (side surface) of the beam under the floor so as to be adjacent to the floor heat insulating material attached to the lower surface of the floor slab is an adhesive or If it is simply attached with double-sided tape, it may fall off over time because it is not supported from above and below. In addition to fixing with an adhesive or the like, it is assumed that a step is provided on the beam so that the heat insulating material can be supported from below, and the beam is placed so as to stand upright on the step, but the amount of concrete is used to form the step. This is not an appropriate method because it may increase the cost and increase the cost.

In addition, instead of the plate-shaped heat insulating material, a method of forming the heat insulating material by spraying is also adopted, but preparation for introduction of the spray hose under the floor, protection / curing other than the surface on which the heat insulating material is formed, and heat insulating material Since it takes time to clean up after formation, efficient work has not been possible.

The present invention has been proposed in consideration of such circumstances, and its purpose is to prevent the heat insulating material from falling off from the side surface of the building structure and to improve the work efficiency of installing the heat insulating material on the building structure. The purpose is to provide a heat insulating material fixture and a heat insulating material fixing structure that can improve the performance.

In order to achieve the above object, the heat insulating material fixture of the present invention is a heat insulating material fixing tool for fixing a plate-shaped heat insulating material arranged on a side surface of a concrete building structure to the building structure. A rod material for maintaining the mold spacing penetrates and is fixed between both side surfaces of the building structure, and a screw portion formed at an end portion of the rod material projects to the outside of the side surface of the building structure. The heat insulating material is arranged on the side surface of the building structure so that the screwed portion is embedded in the heat insulating material, and the heat insulating material is arranged with respect to the screwed portion embedded in the heat insulating material. It is characterized by including a fixing portion that is screwed and fixed from the outside of the side surface of the building structure, and a contact portion that abuts on the outer surface of the heat insulating material.

Further, the heat insulating material fixing structure of the present invention includes the connecting portion provided in a protruding state on the outer side surface of the building structure, and the heat insulating material fixing tool fixed to each other with the connecting portion. It is a heat insulating material fixing structure for fixing a plate-shaped heat insulating material arranged on the side surface of the structure, and the heat insulating material is a side surface of the building structure so that the connecting portion is embedded therein. The heat insulating material fixture is provided with a fixing portion that engages and fixes the connecting portion embedded inside the heat insulating material from the outside of the side surface of the building structure, and an outer surface of the heat insulating material. It is characterized by having a contact portion that comes into contact with the building.

Since the heat insulating material fixing tool and the heat insulating material fixing structure of the present invention have the above-described configurations, it is possible to prevent the heat insulating material from falling off from the side surface of the building structure, and the heat insulating material can be installed on the building structure. Work efficiency can be improved.

It is explanatory drawing of the bar material used for the heat insulating material fixing structure of this invention. (A) is a partial vertical cross-sectional view showing a state in which the bar is used as a separator for tightening the formwork, and (b) is a state in which the bar and the tightening metal fitting are connected through and fixed to the building structure. A front view with a cross section of the portion, (c) is a front view showing a part of the state in which the formwork and the fastening metal fitting are removed from the state of (b). (A) and (b) are explanatory views (longitudinal sectional views) of the heat insulating material fixing structure according to the embodiment of the present invention. (A) and (b) are enlarged vertical sectional views of main parts corresponding to FIGS. 1 (a) and 1 (b). (A) is a partial vertical sectional view of the fixed portion, (b) is a plan view, (c) is a partial vertical sectional view of another example of the fixed portion, (d) is a plan view, and (e) is a contact portion. A side view and (f) is a plan view. (A) and (b) are vertical sectional views of the heat insulating material fixing structure according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
First, the basic configuration of the heat insulating material fixing structure illustrated and described below will be described.

This heat insulating material fixing structure is a building structure provided with a connecting portion A provided in a protruding state and a heat insulating material fixing tool 10 mutually fixed to the connecting portion A on the outside of the side surface 1a of the building structure 1. It is a fixing structure for fixing the plate-shaped heat insulating material 3 arranged on the side surface 1a of the object 1 (see FIGS. 2 and 5).

The heat insulating material 3 is arranged on the side surface 1a of the building structure 1 so that the connecting portion A is embedded therein. The heat insulating material fixture 10 abuts on the fixing portion 11 that engages and fixes the connecting portion A embedded inside the heat insulating material 3 from the outside of the side surface 1a of the building structure 1 and the outer surface 3a of the heat insulating material 3. It is provided with a contact portion 15.
Next, the details of the heat insulating material fixing structure and the heat insulating material fixing tool 10 will be described.

Examples of the building structure 1 include those made of reinforced concrete. Since it is made of concrete, a mold 24, a bar (separator) 20 for fixing the mold 24 to be pressed from the lateral direction thereof, and a fastener 25 are used for the production thereof. The bar 20 is maintained in a fixed state so as to penetrate between the (both) side surfaces 1a of the manufactured building structure 1. A plurality of bar members 20 are provided at substantially the same height position of the beam 1 at intervals along the longitudinal direction of the beam 1 (penetration direction of the paper surface).

FIG. 1A is a vertical cross-sectional view showing an aspect of molding of a beam 1 which is an example of a concrete building structure 1. The beam 1 is formed by arranging a mold 24 having a molding plate 24a on both side surfaces 1a and a lower surface 1b. A bar 20 for mold clamping is penetrated between the side surfaces 1a, and fasteners 25 are attached to both ends of the bar 20. The beam 1 is formed by pressing and tightening the form 24 from both sides in the lateral direction using the bar 20, the fastener 25, the square timber 26, the adjusting metal fitting 28, the wedge member 27, and the like connected thereto.

As shown in FIGS. 1B and 1C, screwed portions (male threaded portions) 21 are formed at both ends of the rod member 20, and the male threaded portions 21 project to the outside of the side surface 1a of the beam 1. The bar member 20 and the fastener 25 are connected by screwing the female screw portion 25a of the fastener 25 into the male screw portion 21 with the molded plate 24a of the mold 24 interposed therebetween. Reference numeral 22 in FIG. 1B is a stopper washer arranged at the end of the bar 20 (inner side of the male screw portion 21) in order to define the side surface 1a of the beam 1 to be formed. After molding, it is buried in the side surface 1a of the beam 1. Further, 25b is an opening for mounting the wedge member 27 provided for adjusting the pressure of the wedge member 27.

As shown in FIG. 1B, the formed beam 1 is in a state of being accompanied by a bar member 20, a mold 24, a fastener 25, and the like, but an accessory other than the bar member 20 that has been penetrated and fixed is attached. By removing the male screw portion 21 so as to be exposed at the tip and projecting as shown in FIG. 1C, the male screw portion 21 can be used as a connecting portion A for connecting the heat insulating material 3. Can be done. In addition, in FIG. 1 and FIGS. 2 and 3 described below, the reinforcing bars inside the beam 1 are not shown.

2 and 3 are explanatory views (vertical cross-sectional views) of the fixed structure of the heat insulating material 3. 3 (a) and 3 (b) are enlarged vertical sectional views showing a fixed structure on the right side surface side of FIG. 2. In the examples of FIGS. 2 and 3, the bar 20 used for the connecting portion A is assumed to be provided at the upper part of the bar 20 shown in FIG. Therefore, as shown in FIG. 2, the male screw portion 21 protruding to the side surface of the lower bar member 20 may be cut off.

As the heat insulating material 3, a plate-shaped material is used, and examples of the material thereof include glass wool, rock wool, urethane foam, and the like. As shown in FIGS. 2A and 2B, the heat insulating material 3 is attached to the floor heat insulating material 7 arranged on the lower surface of the floor slab 5 so as to be adjacent without a gap.

The heat insulating material 3 is arranged so that the male screw portion 21 of the bar 20 is embedded inside the heat insulating material 3 and is in close contact with the side surface 1a of the beam 1. The heat insulating material 3 is supported by the male screw portions 21 by mounting a plurality of male screw portions 21, but the heat insulating material 3 is a beam so that the heat insulating effect of the heat insulating material 3 is not diminished by the gap with the beam 1. It is desirable that the beam 1 is adhered to the side surface 1a of the beam 1 with an adhesive or double-sided tape so that the beam 1 is firmly fixed to the beam 1.

As shown in FIGS. 2A and 2B, the heat insulating material fixing tool 10 is attached to the male screw portion 21 embedded within the thickness of the heat insulating material 3 from the outside of the side surface 1a of the beam 1. 3 is prevented from being separated from the side surface 1a of the beam 1.

The heat insulating material fixing tool 10 has a fixing portion 11 that is screwed and fixed to a screwed portion (male screw portion) 21 from the outside of the side surface 1a of the beam 1 and an abutting portion 15 that abuts on the outer surface 3a of the heat insulating material 3. It is said to have a prepared configuration.

Specifically, as shown in FIGS. 4A or 4B, the fixing portion 11 is a nut-shaped member, and is screwed into the flange-shaped head 12 and the screwed portion (male screw portion) 21. It is provided with a screwed portion (female screw portion) 13. The female screw portion 13 has a tubular shape, one of the cylinders is closed by a collar-shaped head 12, the other has an opening 13a, and a female screw 13b that can be screwed with the male screw portion 21 is provided on the inner surface of the cylinder. It is formed.

As will be described later, the heat insulating material fixture 10 is connected to the male screw portion 21 and arranged so as to penetrate the heat insulating material 3, so that the heat insulating material fixing tool 10 may form a thermal bridge together with the male screw portion 21. Therefore, as the heat insulating material fixture 10, a material formed of a synthetic resin having low thermal conductivity may be used instead of a metal one so as not to reduce the heat insulating property.

Further, as shown in FIG. 4C, the contact portion 15 is composed of an annular washer 15. The diameter of the insertion hole 15a of the washer 15 is slightly larger than the outer diameter of the shaft portion of the female screw portion 13 and smaller than the diameter of the collar-shaped head 12 of the fixing portion 11. It is desirable that the outer diameter of the washer 15 is larger than the diameter of the flange-shaped head 12, and is about 2 to 4 times the diameter of the insertion hole 15a.

The outer diameter of the shaft portion of the female screw portion 13 is determined depending on the diameter of the male screw portion 21, but since the diameter of the commonly used separator 20 is about 5 to 10 mm, it is about 8 to 15 mm in consideration of the wall thickness. It is desirable that the outer diameter be smaller, 12 mm or less, in consideration of prevention of thermal bridge generation.

The female screw portion 13 of the fixing portion 11 and the male screw portion 21 embedded inside the heat insulating material 3 are screwed within the thickness of the heat insulating material 3, and the collar-shaped head 12 of the fixing portion 11 is the heat insulating material. Since the fixing structure is such that the side surface 1a of 3 projects outward, it is desirable that the fixing portion 11 is composed of a cap nut with a flange as shown in the figure.

Further, the brim-shaped head 12 may have a coin split groove (sliding groove) 12a formed so that it can be operated with a coin or a flat-blade screwdriver (see FIG. 4A), or a coin or a flat-blade screwdriver. A cross groove 12b may be formed so that it can be operated with a Phillips screwdriver (see FIG. 4B).

As described above, the female screw portion 13 is screwed into the male screw portion 21 in a state of being inserted into the insertion hole 15a of the washer 15, and the washer 15 is between the side surface 1a of the beam 1 and the collar-shaped head 12. By being sandwiched, the heat insulating material 3 is fixed to the beam 1. In this way, the heat insulating material 3 itself is firmly fixed to the beam 1 by the heat insulating material fixture 10 (heat insulating material fixing structure).

Further, even when the adhesive strength of the adhesive is reduced over time, the heat insulating material 3 is supported by the connecting portion A (male screw portion 21) of the bar 20 and the heat insulating material fixing tool 10. There is almost no risk of it slipping down or shifting downward.

In this way, the heat insulating material 3 can be installed so as to be adjacent to the beam 1 at a substantially right angle to the floor heat insulating material 7. In this way, since the heat insulating material 3 is unlikely to shift over time, there is a possibility that a gap may be formed between the heat insulating material 3 and the floor heat insulating material 7 which may cause a decrease in the heat insulating effect. Is extremely low.

Further, in the example shown in the figure, the diameter of the washer 15 is sufficiently larger than the shaft diameter of the female screw portion 13 and the contact area with the heat insulating material 3 is large, so that the male screw portion 21 of the bar 20 by the heat insulating material fixture 10 is used. The pressing force is also dispersed by tightening the screw against the screw, and thus the possibility that the washer 15 is embedded in the heat insulating material 3 is reduced. Therefore, it is possible to prevent the heat insulating material 3 from being damaged by mounting the heat insulating material fixing tool 10 in the vicinity of the mounting portion of the female screw portion 13.

Further, when the fixing portion 11 is attached to the male screw portion 21 inside the heat insulating material 3, a gap may be formed around the female screw portion 13, but the side opening of the gap is closed by the washer 15. , It is possible to prevent a decrease in the heat insulating effect due to the gap space. If the diameter of the collar-shaped head 12 of the fixing portion 11 is sufficiently large, for example, if the diameter is about the same as the diameter of the washer 15 in the figure, the heat insulating material fixture 10 does not use the washer 15 and has a collar-shaped head. The contact portion may be formed by the portion 12.

Further, in order to prevent the heat insulating material 3 from being damaged by the screwing of the heat insulating material fixture 10 with respect to the male screw portion 21, the washer 15 does not press the heat insulating material 3 even when the heat insulating material 3 is screwed to the maximum. It suffices to have a screw size relationship of various lengths. The heat insulating material 3 does not have to be displaced downward after construction or a gap is not formed between the heat insulating material 3 and the beam 1. For that purpose, the contact portion 15 is brought to the surface of the heat insulating material 3 by the screwing of the female screw portion 13. It suffices if they are in close contact with each other, and the surface of the heat insulating material 3 does not have to be pressed by the contact portion 15.

In the above, the concrete beam 1 has been given as an example of a building structure, but it is not limited to this. The heat insulating material fixing tool 10 and the heat insulating material fixing structure are also applied to concrete walls and columns adjacent to the floor heat insulating material 7. It is also applied when the heat insulating material 3 is attached to a concrete floor or ceiling.

In particular, when the surface on which the heat insulating material 3 is attached is an upright surface such as the above beam 1, wall, or pillar, the heat insulating material 3 is prevented from falling off even if there is no mounting portion such as a step. It is supported (or suspended from above). That is, according to the heat insulating material fixing tool 10 and the heat insulating material fixing structure, it is possible to prevent the heat insulating material 3 from falling off or shifting after construction, and it is possible to improve the efficiency of the construction work.

Further, the connecting portion A to which the heat insulating material fixing tool 10 is attached is not limited to the screwed portion 21 of the bar member (separator) 20, and may be another one. For example, a bolt 30 (see FIG. 5) may be used to form the connecting portion A.

FIG. 5 is a heat insulating material fixing structure in which a bolt 30 is used instead of the bar 20 used in the example of FIG. The head portion 32 is embedded in a plurality of locations having substantially the same height as the side surface 1a of the beam 1, and the bolt 30 is fixed so that the shaft portion (screw portion, male screw portion) 31 protrudes. The shaft portion 31 of the bolt 30 constitutes a connecting portion A to which the heat insulating material fixture 10 is fixed. In this way, the connecting portion A can be arranged at an appropriate position according to the size of the heat insulating material 3, and the heat insulating material 3 can be installed regardless of the separator 20.

Further, the concrete building structure 1 is not limited to the one formed on site, but may be precast molded. Furthermore, the heat insulating material fixing tool 10 and the heat insulating material fixing structure can be applied to the building structure 1 which is not made of concrete.

Further, in the heat insulating material fixing structure, the screwed portions 21 and 31 are formed by the male screw portions 21 and 31, and the screwed portion 13 of the heat insulating material fixing tool 10 is formed by the female screw portion 13. Males and females may have the opposite configuration. Further, the fixing structure between the connecting portion A and the heat insulating material fixing tool 10 is not limited to the screwing structure, and may be another fixing structure such as elastic engagement.

In the examples shown in FIGS. 2 and 5, the heat insulating material fixture 10 is used at a plurality of places at one height position, but the present invention is not limited to this. For example, in the example of FIG. 2, a connecting portion A by a bolt 30 may be provided at a position higher than the bar 20 to fix the heat insulating material 3 so as to be more stable. In addition, the heat insulating material fixture 10 may be used at various positions.

If a bolt 30 having a shaft diameter smaller than that of the bar (separator) 20 is used as the connecting portion A, the shaft diameter of the female screw portion 13 of the heat insulating material fixture 10 can also be reduced, and the deterioration of the heat insulating property due to the heat insulating material fixing structure is suppressed. be able to.

1 Building structure (beam)
1a Side 1b Bottom 3 Insulation 3a Outer 5 Floor slab 7 Floor insulation 10 Insulation fixture 11 Fixing part (nut-shaped member)
12 brim-shaped head 12a Coin split groove (slip groove)
12b Cross groove 13 Threaded part (female threaded part)
15 Contact part (washer)
15a Insertion hole A Connecting part 20 Bar material (separator)
21 Threaded part, male threaded part 22 Stopper washer 24 Formwork 25 Fastener 25a Female threaded part 25b Wedge opening 26 Square lumber 27 Wedge material 30 Bolt 31 Screwed part, male threaded part 32 Head

Claims (7)

A heat insulating material fixture that fixes a plate-shaped heat insulating material arranged on the side surface of a concrete building structure to the building structure.
A rod material for maintaining the formwork spacing penetrates and is fixed between both side surfaces of the building structure, and a screw portion formed at an end portion of the rod material projects to the outside of the side surface of the building structure. Ori,
The heat insulating material is arranged on the side surface of the building structure so that the screwed portion is embedded therein.
It is characterized in that it is provided with a fixing portion that is screwed and fixed to the screwed portion embedded inside the heat insulating material from the outside of the side surface of the building structure, and a contact portion that abuts on the outer surface of the heat insulating material. Insulation fixture. In claim 1,
The fixing portion includes a collar-shaped head and a screwed portion to be screwed with the screwed portion.
The contact portion is made of an annular washer and is composed of an annular washer.
The screwed portion is screwed into the screwed portion in a state of being inserted into the abutting portion, and the abutting portion is sandwiched between the side surface of the building structure and the brim-shaped head. A heat insulating material fixture, characterized in that the heat insulating material is fixed to the building structure. In claim 1 or 2,
The building structure may be a beam, wall or column.
The heat insulating material fixture is provided so as to be adjacent to the floor heat insulating material arranged on the lower surface of the floor slab. A plate-like structure arranged on the side surface of the building structure, which is provided with a connecting portion provided in a protruding state and a heat insulating material fixture fixed to each other on the outside of the side surface of the building structure. It is a heat insulating material fixing structure for fixing the heat insulating material.
The heat insulating material is arranged on the side surface of the building structure so that the connecting portion is embedded therein.
The heat insulating material fixture includes a fixing portion that engages and fixes the connecting portion embedded inside the heat insulating material from the outside of the side surface of the building structure, and a contact portion that abuts on the outer surface of the heat insulating material. Insulation material fixing structure characterized by being equipped with. In claim 4,
The heat insulating material fixing structure is characterized in that the fixing portion is fixed and attached to the connecting portion by screwing. In claim 4 or 5,
The connecting portion is composed of a screw portion.
The fixing portion includes a collar-shaped head and a screwed portion to be screwed into the connecting portion.
The contact portion is made of an annular washer and is composed of an annular washer.
The screwed portion is screwed into the screwed portion in a state of being inserted into the abutting portion, and the abutting portion is sandwiched between the side surface of the building structure and the brim-shaped head. The heat insulating material fixing structure is characterized in that the heat insulating material is fixed to the building structure. In any one of claims 4 to 6,
The building structure is made of concrete beams, walls or columns, and a rod material for maintaining formwork spacing penetrates and is fixed between both side surfaces of the building structure, and the rod material is connected to the end portion of the rod material. The department is arranged,
The heat insulating material fixing structure is characterized in that the heat insulating material is arranged so as to be adjacent to the floor heat insulating material arranged on the lower surface of the floor slab.

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