JPH1182442A - Nail for fixing heat insulating material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a reduction in heat insulating performance when a heat insulating material is fixed, to stick heat insulating materials in a stacking manner and reuse the heat insulating materials. SOLUTION: In a heat insulating material fixing nail 1 made of plastic, a locking hole 16 for pulling out the fixing nail 1 is provided in the upper surface of sheet-like umbrella part 10, a shank 12 is provided to be extended in the back side of the umbrella part 10, the lower surface of the umbrella part 10 and the shank 12 are connected to each other by a sheet-like reinforcing piece 14, a thin part 14a formed to be thin is provided in a root part between the reinforcing piece 14 and the shank 12 and the umbrella part 10, and when the umbrella pat 10 and the shank 12 are rotated while the fixing nail 1 is inserted into the heat insulating material, the reinforcing piece 14 is broken away from the thin part 14a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nail suitable for fixing a heat insulating material to an object such as a wall surface.

[0002]

2. Description of the Related Art In recent constructions, heat insulating materials have been routinely used on the outer walls and ceilings of buildings for the purpose of high airtightness and high heat insulation. Conventionally, iron nails have been used to fix urethane foam or the like, which is a heat insulating material, to a wall surface or the like.

[0003]

However, iron nails are
Since the thermal conductivity is extremely high, the nail itself becomes a medium for transmitting heat, causing dew condensation and the like, and also deteriorating the performance in terms of a heat insulating effect. In addition, since the heat insulating material is soft, it is necessary to interpose a backing plate between the nail and the heat insulating material in order to fix it with an iron nail. Because of the thickness, it becomes an obstacle, and it is difficult to apply two or more heat insulating materials on top of each other.

[0004] Further, when nailing is unsuccessful and the nail is pulled out, the surrounding heat insulating material is severely damaged, and there is a problem that it is difficult to reuse the heat insulating material.

[0005] The present invention has been made in view of the above-mentioned problems of the prior art, and does not cause a decrease in heat insulation performance when fixing a heat insulating material.
It is an object of the present invention to provide a nail for fixing a heat insulating material, which can cope with an overlap of the heat insulating material and enables the heat insulating material to be reused.

[0006]

The present invention solves the above-mentioned problems as follows. (1) It has a thin plate-shaped umbrella portion which is made of plastic and fixes the heat insulating material in a state sandwiched between the umbrella portion and the shaft. And a thin plate-like reinforcing piece for connecting the two is provided.

(2) In the above item (1), the present invention is characterized in that a reinforcing material such as glass fiber is contained in plastic.

(3) In the above item (1) or (2), a thin portion having a reduced thickness is formed along the root of the reinforcing piece, the shaft and the umbrella portion, and the heat insulating material is fixed. When the umbrella portion and the shaft are rotated, the reinforcing piece breaks from the thin portion.

(4) In the above items (1) to (3), a helical screw portion which can be screwed into an object to which the heat insulating material is fixed is formed at the tip of the shaft. .

(5) In the above items (1) to (4), a locking hole for rotation used for rotating the umbrella portion and removing the shaft portion from the object is formed on the surface of the umbrella portion. It is characterized by having been established.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a nail for fixing heat insulating material according to the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a heat-insulating material fixing nail (hereinafter, abbreviated as “fixing nail”) (1) of the present embodiment. The fixing nail (1) mainly includes an umbrella (10). ), Shaft (12) and reinforcing piece (14)
And the like, and is formed using plastic containing glass fiber as a material.

FIG. 2 shows an umbrella portion (10). The umbrella portion (10) functions as a backing plate for fixing a heat insulating material, and has a circular shape in plan view. On its surface side, as will be described later, four locking holes (16) used for rotating and pulling out the fixing nail (1) are formed concentrically. Further, the umbrella portion (10) is formed of a thin plate in consideration of the case where the heat insulating material is laminated.

On the back surface of the umbrella portion (10), a thin plate-like reinforcing piece (14) for connecting the umbrella portion (10) and the reverse tapered portion (12a) of the shaft (12) is provided.
A total of four cards are provided at 0 ° intervals. This reinforcement piece (14)
Is formed as thin as possible, but has a function of reinforcing the umbrella (10), and when the fixing nail is pressed in the axial direction, the umbrella (10) and the shaft (12) are It has a certain strength so as not to break.

As shown in FIGS. 2 to 4, the root of the reinforcing piece (14) with respect to the umbrella portion (10) and the shaft (12) is a thin portion (14a). The thin portion (14a) is used to easily break the reinforcing piece (14) due to the shearing force generated in the reinforcing piece (14) when the shaft (12) is rotated to remove the fixing nail (1). belongs to. In other words, at the time of removal, the reinforcing piece (14) breaks from the thin portion (14a), thereby preventing rotation of the reinforcing piece (14) inside the heat insulating material and preventing the heat insulating material from being damaged more than necessary. Have

As shown in FIG. 1, a helical screw portion (18) is formed at the tip of the shaft (12) to function as a stopper for the fixing nail (9) from coming off the fixed object.

Next, a method of using the fixing nail according to this embodiment will be described.

FIGS. 5 and 6 show an operation procedure for fixing the heat insulating material (20) to a fixed object (22) such as a wall surface. First, as shown in FIG. 5, a heat insulating material (20) is fixed to an object to be fixed such as a wall surface.
In order to fix to the shaft (22), the fixing nail (1) is pressed in the axial direction from the surface of the heat insulating material (20), and the screw portion (1) at the tip of the shaft (12) is pressed.
8) is pressed into the fixed object (22) via the heat insulating material (20).

Then, together with the shaft (12), the reinforcing piece (14) and the umbrella portion (10) penetrate into the inside of the heat insulating material (20), and finally, as shown in FIG. ) Is flush with the surface of the heat insulating material (20). That is, since the umbrella (10) is made of a thin plate as thin as possible, it can be easily and completely pushed into the heat insulating material (20), and the heat insulating material (20) and the umbrella (10) Can be flush. For this reason, if necessary, an additional heat insulating material (20) can be stuck on from the state of FIG.

The screw (18) at the tip of the shaft (12) is
Since it is press-fitted in 2), it is possible to counter the pull-out force with a small bite amount and to stably hold the heat insulating material (20).

To remove the fixing nail (1), a tool (30) as shown in FIG. 7 is used. The tool (30) comprises a head (32) having four pins (31) implanted at equal intervals on the front surface and a handle (33) connected by a shaft (34). (3
1) is inserted into the four locking holes (16) of the fixing nail (1) and is rotated counterclockwise, whereby the screw (18) at the tip of the shaft (12) is used. 12) is detached from the fixed object (22).

At this time, the reinforcing piece (14) receives resistance from the heat insulating material (20) due to the rotation of the shaft (12), breaks from the thin portion (14a), and remains in the heat insulating material (20). . Therefore, damage to the heat insulating material (20) due to the reinforcing piece (14) is minimized, and the possibility of reusing the heat insulating material (20) after removing the fixing nail (1) is increased.

As described above, the fixing nail (1) of the present embodiment is provided.
According to the method, since the material is made of plastic, unnecessary heat conduction is prevented as compared with the case where the heat insulating material is fixed by a conventional iron nail, which can contribute to improvement of the heat insulating efficiency. Also, when the heat insulating material (20) is fixed, the umbrella part (10) is completely inserted inside the heat insulating material (20) and becomes the same surface as the heat insulating material surface. Can be. Furthermore, when the fixing nail (1) is pulled out, the damage of the heat insulating material (20) by the reinforcing piece (14) is minimized, so that the heat insulating material (20) fixed once can be reused. Becomes

In this embodiment, the material of the fixing nail (1) is plastic containing glass fiber. However, plastic that does not contain glass fiber may be used as long as strength can be maintained. Further, in the present embodiment, the shape of the umbrella portion (10) is circular in a plan view. However, the shape is not limited to this, as long as the heat insulating material can be fixed.

[0025]

【The invention's effect】

(a) According to the first aspect of the invention, since the heat insulating material fixing nail is formed of plastic, unnecessary heat conduction can be prevented, dew condensation and the like can be prevented, and the heat insulating efficiency can be improved.

(B) According to the second aspect of the present invention, since the reinforcing material such as glass fiber is contained in the plastic, the strength of the fixing nail is improved.

(C) According to the third aspect of the present invention, since a part of the reinforcing piece is formed as a thin portion having a reduced thickness, when the nail is rotated to remove the fixing nail, the reinforcing piece becomes thinner. Since it is fractured from the heat insulating material, damage to the heat insulating material is minimized, and the heat insulating material can be reused.

(D) According to the fourth aspect of the present invention, since the helical screw portion which is press-fitted into the object to be fixed is formed at the tip of the shaft of the fixing nail, the pull-out force can be reduced with a slight bite amount. And the heat insulating material can be fixed more reliably.

(E) According to the fifth aspect of the present invention, since a locking hole for rotation used when extracting from the object to be fixed is formed in the umbrella surface of the fixing nail, the fixing nail can be used. It can be easily removed from the fixed object.

[Brief description of the drawings]

FIG. 1 is a front view of a nail for fixing a heat insulating material according to an embodiment.

FIG. 2 is a plan view of the nail for fixing a heat insulating material of the embodiment.

FIG. 3 is a longitudinal sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 is a schematic cross-sectional view showing an operation procedure when fixing a heat insulating material to a fixed object such as a wall surface.

FIG. 6 is a schematic cross-sectional view showing a work procedure when the heat insulating material is fixed to a fixed object such as a wall surface.

FIG. 7 is a schematic perspective view of a tool used when removing the heat insulating material fixing nail of the embodiment.

[Explanation of symbols]

 (1) Nail for fixing heat insulation material (10) Head (12) Shaft (12a) Reverse taper (14) Reinforcement piece (14a) Thin part (16) Lock hole (18) Screw (20) Heat insulation ( 22) Fixed object (30) Tool (31) Pin (32) Head (33) Handle (34) Shaft

Claims (5)

[Claims] 1. A thin plate-shaped umbrella portion made of plastic for fixing a heat insulating material in a state sandwiched between the umbrella portion and an object to be fixed. A nail for fixing a heat insulating material, wherein a thin plate-like reinforcing piece for connecting the two is provided between the nail and the shaft. 2. The nail for fixing a heat insulating material according to claim 1, wherein a reinforcing material such as glass fiber is contained in the plastic. 3. A thin-walled portion having a reduced thickness is formed along the base of the reinforcing piece, the shaft and the umbrella portion, and when the umbrella portion and the shaft fixing the heat insulating material are rotated, the reinforcing member is reinforced. 3. The nail for fixing a heat insulating material according to claim 1, wherein a piece is broken from said thin portion. 4. The heat insulation according to claim 1, wherein a helical screw portion that can be screwed into an object to which the heat insulating material is fixed is formed at a tip of the shaft. Nail for material fixing. 5. A rotation locking hole for use in rotating the umbrella portion to remove the shaft portion from an object to be fixed is formed in the surface of the umbrella portion. The nail for fixing a heat insulating material according to any one of the above.