JP2001049761A - Sash prefabricating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve heat insulating property and fire protecting property by arranging an incombustible heat insulating material at the outside of a room on an outer periphery of a horizontal part of a surrounding frame and arranging urethane foam at the inside of the room. SOLUTION: A surrounding frame 12 which is inclined so as to narrow cross section toward the inside of a room, has a horizontal part 12a holding a sash S at an intermediate and has flanges 12b, 12c at both ends is formed. Timbering members 14 are longitudinally and latitudinally arranged at the inside of the surrounding frame 12 via ribs. A packing member 16 is mounted along left and right sides and an upper side at the inside of a room of the surrounding frame 12, and a flange 16a of the packing member 16 and the flange 12c of the surrounding frame 12 are joined. By mounting a wedge member 18 on a lower side at the inside of the room of the surrounding frame 12, a holding frame 10 for pointing sash is formed. At the time of an execution, an incombustible heat insulating material 32 is arranged at the outside of the room on an outer periphery of the horizontal part 12a of the holding frame 10 and urethane foam is arranged at the inside of the room. As a result, heat insulating property and fire protecting property can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to sash pretending methods. More specifically, the present invention relates to a sash tipping method excellent in heat insulation and fire resistance.

[0002]

A sash is temporarily attached to a formwork before the wall concrete is cast, and the sash is attached to the wall when the wall concrete is cast and the mold is removed. The pre-installation method is superior to the sash post-installation method in terms of shortening the construction period and labor saving on site work, and various methods have been conventionally proposed, and various holding frames used for the sash pre-installation method are also available. Is being developed. Among them, Japanese Patent Publication No. Sho 52-46671 describes a holding frame for pre-applied sashes to which the present applicant was involved in the development. The method using this holding frame has the advantages that the sash can be securely held at a predetermined position and that assembly and disassembly are easy.

[0003] However, the method using the holding frame has a problem that the heat insulating effect is not sufficient and dew condensation occurs.

[0004] On the other hand, a method of spraying urethane foam around the sash to exhibit a heat insulating effect has already been carried out by a post-sash post-installation method. However, since urethane foam is easily flammable, it has a problem in fire prevention.

Accordingly, an object of the present invention is to provide a method of attaching a sash which is excellent in heat insulation and fire prevention.

[0006]

Means for Solving the Problems A peripheral frame which is inclined so that its cross section becomes narrower toward the indoor side and has a horizontal portion for holding a sash in the middle, a support member arranged inside the peripheral frame, and a peripheral frame 2. The sash according to claim 1, further comprising a step of installing a sash pre-installation holding frame having a packing member having a wedge-shaped cross section and a wedge member at a predetermined position, the sash being detachably attached along each side on the indoor side of the vehicle. The pre-installation method is to place a non-combustible heat insulating material on the outdoor side of the outer periphery of the horizontal part of the surrounding frame,
A step of arranging urethane foam on the indoor side is provided.

According to a second aspect of the present invention, in the method of the first aspect, the step of applying a urethane coating to a contact surface of the wooden fitting frame attached to the periphery of the holding frame for attaching the sash with concrete. It is further characterized by being provided.

According to a third aspect of the present invention, there is provided a sash tip attaching method according to the first or second aspect, wherein the sash concrete adheres to the non-combustible heat insulating material and the urethane foam.
The method further comprises a step of attaching a metal anchor means to a horizontal portion of the peripheral frame.

According to a fourth aspect of the present invention, there is provided the sash tipping method according to any one of the first to third aspects, wherein the non-combustible heat insulating material is formed into a board shape by mixing a cement paste into urethane foam. It is characterized by being.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, referring to the drawings, a method for attaching a sash according to an embodiment of the present invention will be described. In FIG. 1, a holding frame for attaching a sash, which is indicated by reference numeral 10 as a whole, is similar to the holding frame described in Japanese Utility Model Publication No. 52-46671. That is, the holding frame 10 for attaching the sash is composed of the surrounding frame 12, the support member 14,
A packing member 16 and a wedge member 18 are provided.

The peripheral frame 12 is inclined so that its cross section becomes narrower toward the indoor side, is disposed in the middle, and has a horizontal portion 12a for holding the sash S and flanges 1 disposed at both ends.
2b and 12c. The support member 14 serves to prevent deformation of the peripheral frame 12 and is arranged vertically and horizontally inside the peripheral frame 12 via a rib.

The packing member 16 is attached along the left and right sides and the upper side of the surrounding frame 12 on the indoor side, and is formed by forming a steel plate into a wedge-shaped cross section. The packing member 16 is provided with a flange 16a overlapping the flange 12c of the peripheral frame 12 when the packing member 16 is attached to the peripheral frame 12, and the flange 12c and the flange 16a are detachably connected to each other by a bolt / nut 20. Are joined. The wedge member 18 is attached to the peripheral frame 12.
It is attached along the lower side of the indoor side, and is a tree formed in a wedge shape.

In FIG. 1, reference numeral 22 denotes a curing board such as a veneer board; 24, a wooden fitting frame such as a sill and a dashi;
Indicates a mold frame, 28 indicates a surface finishing material, and 30 indicates an inner mold for forming a drainer. Reference numeral 12d denotes a reinforcing rib of the peripheral frame 12.

On the outer periphery of the horizontal portion 12a of the peripheral frame 12, a non-combustible heat insulating material 32 is disposed outside the room, and urethane foam 34 is disposed inside the room. As the non-combustible heat insulating material 32, for example, a material obtained by mixing a cement paste into urethane foam and forming it into a board shape is used.

Preferably, the wooden fitting frame 24 is provided with a urethane coating 36 on the contact surface with the concrete as shown by a thick line in FIG. This is to prevent the penetration of moisture from the concrete into the fitting frame 24 so that the heat insulating effect of the fitting frame 24 does not deteriorate.

Preferably, the horizontal portion 1 of the peripheral frame 12 is
At 2a, a metal anchor means 38 extending away from the horizontal portion 12a is arranged. More specifically, the anchor means 38 includes an anchor support portion 38 extending substantially parallel to the horizontal portion 12a on a rib of the horizontal portion 12a.
a and an anchor plate 38b attached to the anchor support 38a. The anchoring means 38 serves to ensure the adhesion between the concrete and the non-combustible insulation and urethane foam 34.

Next, the procedure of the sash pre-adjustment method will be described. First, the peripheral frame 12 is fixed to the mold 26 with screws or the like, the packing member 16, the sash S, and the fitting frame 24 are attached to the peripheral frame 12, and then the wedge member 18 is driven in to fix the peripheral frame 12. Next, the horizontal portion 1 of the peripheral frame 12
After arranging the non-combustible heat insulating material 32 outside the room on the outer periphery of 2a and arranging the urethane foam 34 inside the room, concrete is poured. After the concrete has hardened, the form 26
, And by removing the packing member 16 and the wedge member 18, the peripheral frame 12 can be easily removed.
The fitting frame 24 may be provided with a urethane coating 36,
An anchor means 38 may be attached to the horizontal portion 12a of the peripheral frame 12.

[0018]

According to the present invention, it is possible to obtain a method excellent in heat insulation and fire prevention while utilizing the advantages of the sash pre-installation method capable of shortening the construction period and saving labor on site. Moreover, by applying urethane coating to the contact surface of the fitting frame with concrete, the heat insulating effect of the fitting frame is maintained. Further, by attaching the anchor means to the horizontal portion of the peripheral frame, adhesion between the concrete, the non-combustible heat insulating material and the urethane foam is ensured.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a method of attaching a sash according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Holding frame for attaching sash 12 Peripheral frame 14 Supporting member 16 Packing member 18 Wedge member 32 Non-combustible heat insulating material 34 Urethane foam 36 Urethane coating 38 Anchor means

Claims (4)

[Claims] 1. A method for attaching a sash, comprising: a peripheral frame having a horizontal portion which is inclined so that a cross section becomes narrower toward an indoor side and has a horizontal portion for holding a sash in the middle, and a support member disposed inside the peripheral frame; Installing a holding frame for attaching a sash at a predetermined position, the packing frame including a packing member having a wedge-shaped cross section and a wedge member, the frame being detachably attached along each side of the surrounding frame on the indoor side. A step of disposing a non-combustible heat insulating material on the outer side of the outer periphery of the horizontal part and disposing urethane foam on the inner side of the room. 2. The method according to claim 1, further comprising applying a urethane coating to a contact surface of the wooden fitting frame, which is attached to the periphery of the holding frame for attaching the sash, with the concrete. 3. The method according to claim 1, further comprising the step of attaching metal anchor means to a horizontal portion of the peripheral frame in order to secure the adhesion between the concrete, the non-combustible heat insulating material and the urethane foam. 3. The method according to 2. 4. The method according to claim 1, wherein the non-combustible heat insulating material is a material formed by mixing a cement paste into urethane foam and forming a board.