JP2012202190A - Airtight member for sash, and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an airtight member for a sash, which has fire resistance performance and high durability, and a method for manufacturing the same.SOLUTION: Airtight members 9 to 12 to be fixed to the frame body 13 and sliding doors 4a and 4b of a sash are provided with basal portions 9a and 12a to be fitted to airtight member holders 3a, 5a, 5b, and 7b of the sash, and projections 9b and 12b which project from the basal portions 9a and 12a toward outside of the airtight member holders 5b and 7b. The basal portions 9a and 12a are formed of airtight member forming resin having abrasion resistance and elasticity. The projections 9b and 12b are formed of airtight member forming resin which contains a thermally expandable heat resistant component. The basal portions 9a and 12a and the projections 9b and 12b are integrally formed.

Description

  The present invention relates to an airtight material for a sash for securing airtightness and watertightness to a sash, and a method for manufacturing the same.

  Air gaps such as tight sashes and seals are present in the gap between the shoji and frame, such as a sliding sash and a sash that fits in, or in the summons of the shoji. We are trying to improve. Among the airtight materials, the seal material has a base portion fixed to a holder protruding from the inner peripheral side of the vertical frame and the upper and lower frames of the frame body, and a seal piece protruding from the base portion toward the shoji. Part of the tight material used for door-to-doors is also fixed to the holder. And if it is a sliding shoji, the above sealing materials and a tight material will be arrange | positioned all over places where airtightness and watertightness are requested | required, such as a summon of a shoji and a door-cart housing part.

JP 2010-285791 A

The airtight material as described above is attached for the purpose of ensuring airtightness and watertightness in the sash, so when the fireproof performance is required for the sash, there is a gap created between the frame and the shoji. For example, measures such as sticking a tape containing a thermally expanded refractory component such as expanded graphite are applied. However, it is necessary to affix the tape to each of the places that need countermeasures, and it is impossible to mount the tape efficiently, which causes a problem of reducing productivity.
This invention is made | formed in view of the said subject, and while providing fireproof performance, it is providing the airtight material for sashes with high durability, and its manufacturing method.

  The invention according to claim 1 of the present invention is a sash hermetic material attached to a sash frame or a shoji, and includes a base portion fitted to a holder of the sash, and a protruding portion projecting out of the holder from the base portion. The base part is made of an airtight material molding resin having wear resistance and elasticity, the projecting part is made of an airtight material molding resin containing a thermal expansion fire-resistant component, and the base part and the projecting part are integrally molded. It is characterized by that. Here, the airtight molding resin includes vinyl chloride resin, silicon rubber, ethylene propylene rubber, and the like that are generally used for seal materials for sashes and tight materials. The thermal expansion refractory component includes all those having the property of expanding due to heat at the time of fire, and an example thereof is expanded graphite.

  Of the present invention, the invention according to claim 2 coextrudes different resin components by coextrusion molding machine of a hermetic molding resin solvent and a mixed resin solvent obtained by mixing a thermal expansion refractory component in the hermetic resin solvent. It is characterized by passing through an extrusion process, a cooling process for cooling and curing the molded product obtained by the extrusion process, and a processing process for processing the molded product obtained by the cooling process into a predetermined length and shape.

  According to the first aspect of the present invention, the base portion made of an airtight material molding resin having wear resistance and elasticity and the projecting portion made of the airtight material molding resin containing a thermal expansion refractory component are integrated. The molded airtight material for the sash ensures airtightness and watertightness at the projecting portion, and expands in the event of a fire due to a thermal expansion and fire resistance component contained in the projecting portion, thereby closing the gap between the sashes. In addition, since the base is molded only from an airtight material molding resin that does not contain thermal expansion and fire resistance components and has wear resistance and elasticity, the base is a sash seal holder when subjected to wind pressure, impact, etc. Even in the state of being held in the sash, fire resistance can be imparted to the sash without the base portion becoming brittle and damaging. Further, as in the invention of claim 2, by co-extrusion molding of different kinds of raw materials, the base part of the airtight material for sash is formed as an airtight material molding resin, and the projecting part is formed as an airtight material molding resin containing a thermal expansion refractory component. An integral molded product is obtained.

(A) is a perspective view of a sealing material (sash-tight airtight material) according to the present embodiment showing A in FIG. 2 in an enlarged manner, and (b) is a tight material (sash-tight airtight) in which B is enlarged in FIG. It is a perspective view of material. It is a longitudinal cross-sectional view of the sash to which the airtight material for sashes by this implementation was applied. It is a cross-sectional view of the sash to which the airtight material for sashes by this implementation was applied. It is a figure which shows the manufacture procedure of the airtight material (seal material) for a sash by this implementation.

  Below, the airtight material for sashes by this implementation is demonstrated based on drawing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The sash hermetic materials 9 to 12 according to this embodiment are applied to a sliding window sash. As shown in FIG. 2, the sliding window includes an outer frame 4a and an inner frame 4b in a frame 13 formed by four-frames of an upper frame 1, a lower frame 2, and left and right vertical frames 3. The shoji 4a and the shoji 4b move left and right along the rails 1a and 2a provided on the upper frame 1 and the lower frame 2, and open and close in a sliding manner within the frame 13. An airtight material holder 7b is provided at the lower end of the outdoor side of the inner peripheral side of the door carriage storage portion 7a of the inner and outer shoji 4a, 4b, and a seal material (sash airtight material) 9 is held in the airtight material holder 7b. . As a result, the seal member 9 held by the airtight material holder 7b at the lower end of the inner periphery of the outer frame 1 of the upper frame 1 and the inner peripheral lower end of the door wall storage portion 7a of the inner and outer shojis 4a and 4b is connected to the frame 13 and the outer guard. The air blown from the gap between 4a or the gap between the door cart storage portion 7a and the door wheel 14 is restricted. Further, as shown in FIG. 3, the portion between the vertical fences 5 on the summing side of the internal and external shoji 4 a and 4 b, the place where the internal and external shoji 4 a and 4 b contact the vertical frame 3, and the lower frame 2 and the internal and external shoji Tight materials 8, 10, 11, 12 are provided between 4a and 4b lower rod 7 (see also FIG. 2) and between upper frame 1 and inner and outer shoji 4a and 4b upper rod 6 respectively. is there. As a result, when the inner and outer shojis 4a and 4b are closed, the vertical frame 3 and the vertical hook 5 at the door of the inner and outer shojis 4a and 4b come into contact with each other with the tight material 12 interposed therebetween, so that the sash is airtight and watertight. Secured.

  As described above, the tight materials 8, 10, 11, and 12 are attached to the seal material 9, and the seal material 9 attached to the position surrounded by A in FIG. 1 and the tight material attached to the position surrounded by B in FIG. 12 will be described. 1 (a) is also referred to FIG. 2, and the sealing material held by the airtight material holder 7b provided at the lower end of the inner peripheral wall of the door storage 7a of the lower arm 7 of the outer shoji 4b. 9, a block-shaped base portion 9 a held by the airtight material holder 7 b, and a seal piece (protrusion portion) 9 b protruding from the base portion 9 a toward the door wheel 14. 7 is arranged over the entire length in the longitudinal direction. The sealing material 9 has a base portion 9a made of a vinyl chloride resin, and a sealing piece 9b made of vinyl chloride resin containing expanded graphite (thermal expansion refractory component). The base portion 9a and the sealing piece 9b It is integrally molded.

  2 (b) is a tight material 12 held by the vertical fence 5 on the door-end side of the inner and outer shoji 4a and 4b, and is provided at the door-end of the vertical fence 5 as shown in FIG. A block-shaped base portion 12a held by a concave airtight material holder 5a, and a convex portion (protrusion portion) 12b projecting from the base portion 12a toward the inner periphery of the vertical frame 3. , 4b is arranged over the entire length of the longitudinal gutter 5 on the door-to-door side. The tight material 12 has a base portion 12a made of silicon rubber generally used for a sash tight material, and a convex portion 12b made of silicon rubber containing expanded graphite. The convex portion 12b is integrally formed. Then, referring to FIGS. 2 and 3 together with the above-described sealing material 9 and tight material 12 and other airtight materials containing expanded graphite (thermally expanded refractory component), FIG. 2 and FIG. By attaching to 3a, 5a, 5b, 7b, expanded graphite (thermal expansion refractory component) is arranged in the gap between the frame 13 and the internal and external shoji 4a, 4b and the gap between each shape material, so in the event of a fire The expanded graphite expands and closes gaps and intervals, thereby preventing flames and heat from entering.

  The molding of the sealing material 9 and the tight material 12 described above is performed by a coextrusion molding method. Specifically, when the sealing material 9 is described, as shown in FIG. 4, a coextrusion molding machine 21 is used, and one of the two tanks 22, 23 arranged in the coextrusion molding machine 21. One tank 22 is filled with a vinyl chloride resin solvent in the case of the sealing material 9, and the other tank 23 is filled with the vinyl chloride resin solvent filled in the one tank 22 described above. A mixed solvent containing expanded graphite is filled. Moreover, the compounding ratio of the mixed solvent mentioned above is set in the range of 20-50 weight part of expanded graphite with respect to 50-80 weight part. Further, the coextrusion molding machine 21 is provided with a mold 24 corresponding to obtaining a molded product P having an arbitrary shape and a cross-sectional size, and the solvent is simultaneously fed from the tanks 22 and 23 to the mold 24. A two-color molded product P in which different types of resins are integrally molded is molded. And the molding P sent out from the coextrusion molding machine 21 is continuously drawn out by the take-up machine 25, and is transferred to a cooling process. In the cooling step, the molded product P extruded from the coextrusion molding machine 21 is cooled through a pool 26 filled with water, thereby ensuring the hardness of the molded product P. And in the processing machine 27 which performs a cutting process and a bending process (processing process), since the molding P is continuously supplied from the coextrusion molding machine 21, it shape | molds corresponding to the application location of the sealing material 9 in a sash. The object P is cut into a predetermined dimension, or a bending process corresponding to a rounded portion or the like of a special frame is performed. If the molded product P obtained through each of the above steps is of the present embodiment, a base 9a made of a vinyl chloride resin, and a protrusion 9b made of a mixed component containing expanded graphite in the vinyl chloride resin, Is formed as a sealing material 9 integrally formed.

  The airtight material for a sash according to the present invention is not limited to the above embodiment, and can be applied to various shapes as long as the airtight material holders 3a, 5a, 5b, and 7b in the sash are provided. Moreover, although the said embodiment demonstrated what applied the airtight material for sashes of this invention to the aluminum sash, it is also possible to attach to the aluminum frame material of a resin sash, or an aluminum eaves. In addition, as for the coextrusion molding machine 21, the pool 26, and the processing machine 27 used in the method for manufacturing the sash hermetic material of the present invention, any other means that can process the molded product P into a desired shape and size. The invention is not limited to the above embodiment.

4a external shoji 4b inner shoji 9 Sealing material (seal material for sash)
9a Base 9b Seal piece (protrusion)
12 Tight material (seal material for sash)
12a Base part 12b Convex part (protrusion part)
13 Frame 3a, 5a, 5b, 7b Airtight material holder P Molded product

Claims (2)

  The sash airtight material attached to the sash frame and shoji has a base part that fits into the sash holder and a protruding part that protrudes out of the holder from the base part, and the base part has wear resistance and elasticity. An airtight material for a sash comprising an airtight material molding resin having a projecting portion made of an airtight material molding resin containing a thermal expansion refractory component, wherein the base portion and the projecting portion are integrally molded. A molding product obtained by co-extrusion of different resin components using a co-extrusion molding machine with an air-tight molding resin solvent and a mixed resin solvent obtained by mixing a heat-expanding refractory component in the hermetic resin solvent. A method for producing an airtight material for a sash, comprising: a cooling step of cooling and curing; and a processing step of processing a molded product obtained by the cooling step into a predetermined length and shape.

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