JPH11132217A - Bolt cover for heat insulation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bolt cover for heat insulation which can surely cover an end part of a bolt in a very simple way, can surely prevent a heat bridge phenomenon of the bolt, and can improve a working property to a large extent. SOLUTION: The bolt cover is constituted so that a depression part 2 which has the size containing an end part of a bolt and has an appropriate shape is formed in the center of the upper surface of a heat insulating synthetic resin cover 1 formed into an appropriate shape such as a square pole, a circular column and other appropriate shapes, and preferably adhesive layer 3 is previously set so as to surround the depression part 2, then separation sheets of paper 4 are fixed on the adhesive layer 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt cover for heat insulation, and more particularly, to a bolt for use in joining a metal fitting to wood or wood in the construction of a wooden house. The present invention relates to a bolt cover for heat insulation which prevents a problem such as dew condensation from occurring on the indoor side due to a heat bridge phenomenon via a heat-insulating bolt cover.

[0002]

2. Description of the Related Art In the construction of a wooden framed house in recent years, the number of craftsmen is deficient and the population is aging. Prefabrication is underway to solve this problem. In the construction of the prefabricated house, not only auxiliary metal fittings but also bolts as joining metal fittings are indispensable in order to save labor on site, simplify work, and improve the performance of the house.

[0003] This bolt joins a metal fitting to wood or wood, and usually the bolt head is exposed in the ventilation space on the outdoor side. Needless to say, the bolts are made of metal and have good thermal conductivity. In cold regions, the bolts are exposed to low-temperature outside air, so that the entire bolts are cooled down, and the area around the indoor end of the bolts is cooled (heat bridge phenomenon). ), Causing problems such as condensation on the indoor side.

For this reason, in most places, urethane foam liquid is sprayed onto the bolt heads, and foaming is performed on the spots to cover the bolt heads as a measure against heat bridge (see FIG. 6).

[0005]

The above-mentioned conventional on-site foaming operation is not only troublesome, but also has a non-uniform foam shape and is unsightly during construction. On the contrary, there is a case where the foam is offset and a part of the bolt is exposed and the heat insulating function is hindered, so that it is generally possible to point out that the workability is poor and the heat insulating property holding performance is deteriorated.

Therefore, the present invention has no such problem.
In other words, the bolt end can be covered with a very simple operation and surely, so that the heat bridge phenomenon of the bolt can be surely prevented and the workability can be greatly improved. The task is to provide

[0007]

SUMMARY OF THE INVENTION The present invention relates to a square-shaped, column-shaped, or other appropriately shaped heat-insulating synthetic resin cover having an appropriate shape large enough to accommodate a bolt end in the center of the upper surface. A heat insulating bolt cover formed by fixing a release paper on the pressure-sensitive adhesive layer, preferably beforehand, so as to surround the concave portion, or a rectangular column,
The above object is achieved by providing a heat-insulating bolt cover formed by providing an adhesive layer on the entire periphery of the top surface of a synthetic resin cover having heat insulation formed in a columnar or other appropriate shape, and fixing release paper on the adhesive layer. did. The cover may be connected in a state where a plurality of covers can be easily separated.

[0008]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of a heat insulating bolt cover according to the present invention. The cover is made of a heat-insulating synthetic resin having no air permeability, preferably a foamed polyethylene or foamed polyurethane.
It is composed of 1. The illustrated cover-1 has a quadrangular prism shape, but may have a cylindrical shape, a hexagonal prism shape, or any other shape.

Usually, the height of the cover 1 is about 1.5 to 2 times the length of the exposed bolt end 5 (usually a bolt head, but may be on the tip side where a nut is screwed). Double it is enough. At the center of the upper surface of the cover-1, a concave portion 2 having a size in which the bolt end portion 5 is completely accommodated is formed. Although the illustrated concave portion 2 is spherical, it is not limited to this, and may have any shape. Reference numeral 3 denotes an adhesive layer provided in advance over the entire periphery of the upper surface of the cover 1, and a release paper 4 is covered thereon. The adhesive may be applied on site without providing the adhesive layer 3 in advance. In addition,
Although the illustrated release paper 4 is divided into four parts, it goes without saying that it may be a series.

In use, the release paper 4 is removed, the cover -1 is put on the bolt end 5 so as to fit in the recess 2 of the bolt end 5, and the cover -1 is pressed against the column 6 or the like. And glue it there. Thus, the work is completed, and the bolt end 5 is covered with the heat-insulating cover 1, so that the bolt end 5 does not come into contact with low-temperature outside air.

The cover-1 may be cut into one piece in advance. Alternatively, as shown in FIG. 3, a large number of covers-1 may be connected and used separately at the site. In this case, the connecting portion 7 is made thin so that it can be easily separated. In the case where the bolts are connected in this way, it is possible to complete the covering operation with a single operation for the plurality of bolt ends that are close to each other (however, when the bolt interval and the recess interval are the same). Limited to.).

In some cases, a counterbore 8 is formed on the column 6 to insert a bolt. FIGS. 2B and 4 show examples of use in such a case, and FIG. This is a case where the cover-1 is sufficiently large with respect to the bore 8. In this case, the cover-1
1 completely covers the spot facing 8 and is adhered. On the other hand, FIG. 4 shows a case in which the cover 1 fits in the counterbore 8. In this case, the cover 1 is bonded to the inner bottom surface of the counterbore 8.

FIG. 5 shows another embodiment in which the recess 1 is not formed in the cover 1. If the bolt end 5 does not protrude from the side surface of the column 6 when the bolt end 5 sinks into the counterbore 8, this is sufficient. It is.

[0014]

The present invention is as described above, and can be used for building a wooden house or the like with very simple work and reliably covering the end of the bolt, thereby reducing the heat bridge phenomenon of the bolt. The bolt cover according to the present invention has an effect of being able to be reliably prevented, greatly improving workability, and has an effect of being easy to manufacture, suitable for mass production, and being supplied at a low price.

[Brief description of the drawings]

FIG. 1 is a perspective view of a heat insulating bolt cover according to the present invention.

FIG. 2 is a longitudinal sectional view showing a use state of a heat insulating bolt cover according to the present invention.

FIG. 3 is a perspective view showing a connection state of a heat insulating bolt cover according to the present invention.

FIG. 4 is a longitudinal sectional view showing another use state of the heat insulating bolt cover according to the present invention.

FIG. 5 is a perspective view showing another configuration example of the heat insulating bolt cover according to the present invention and a use state diagram thereof.

FIG. 6 is a diagram showing a conventional working method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover 2 Depression 3 Adhesive layer 4 Release paper 5 Bolt end 6 Pillar 7 Connecting part 8 Counterbore

Claims (4)

[Claims] 1. A central portion of a top surface of a synthetic resin cover having a heat insulating property formed in a quadrangular prism shape, a cylindrical shape or any other appropriate shape.
A heat-insulating bolt cover having an appropriately shaped concave portion large enough to accommodate a bolt end portion and capable of fixing an upper surface of the cover to a column or the like. 2. The heat insulating bolt cover according to claim 1, wherein an adhesive layer is provided in advance so as to surround the recess, and a release paper is fixed on the adhesive layer. 3. A heat insulating material comprising: an adhesive layer provided on the entire periphery of an upper surface of a synthetic resin cover having a heat insulating property and formed in a quadrangular prism shape, a cylindrical shape or any other appropriate shape, and a release paper fixed on the adhesive layer. Bolt cover. 4. A heat insulating bolt cover formed by connecting a plurality of covers according to claim 1 in an easily detachable state.