JP5658079B2 - sash - Google Patents

Description

  The present invention relates to a sash capable of maintaining airtightness even in a fire.

  The sash is required to maintain a certain hermeticity even in the event of a fire, but in particular, there is a problem that the shochu constituting the shoji stretches due to the flame heat and the shoji is deformed to form a gap. Conventionally, various reinforcing materials and heat insulating materials have been used to suppress the elongation of the wrinkles. However, it is difficult to completely suppress the elongation of the wrinkles no matter what kind of reinforcing material or heat insulating material is used. And especially in the case of a sash that can slide left and right, such as sliding windows, the shoji is not restricted by the frame in the left and right direction, so the side of the shoji is greatly extended by flame heat, In some cases, the crescent lock that locks the indoor shoji may be destroyed. In this case, a large gap is generated between the outdoor shoji and the indoor shoji. By the way, the invention of Patent Document 1 is known as having a spacer (joining portion) at the end of the collar.

JP-A-8-338179

  In such a sash, if the spacer (joining part) contracts or disappears in the event of a fire, the elongation of the heel can be absorbed accordingly. However, the spacer (joint part) in the invention of Patent Document 1 is for maintaining the buffering property and the sealing property, and the spacer for such purpose is generally about 1 mm in thickness, Since it became thinner by tightening the screws to be joined, it was not possible to absorb the elongation of firewood in the event of a fire.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sash that maintains hermeticity by suppressing the deformation of a shoji while allowing the extension of a reed in a fire.

The invention according to claim 1 of the present invention includes a shoji, the shoji has a downspout, a recumbent, a spacer, and a refractory material , and upper and lower recumbents are attached between the left and right downspouts. The spacer is softened by heat in the event of a fire and melts or burns with high heat. Ri Ah attached between the end faces of the peripheral side surface and Yokokamachi, the refractory material, a fire, there is the spacer high temperature and spacer than the softening temperature for foaming at a temperature lower than a temperature to melt or burn out, the vertical frame between the inner peripheral surface and the end face of the Yokokamachi, characterized Oh isosamples mounted arranged in such a manner as to wrap the spacer during foaming. The thickness considering the thermal expansion dimension of the recumbent is a thickness based on the thermal expansion dimension predicted from the material and length of the reed when the sash is exposed to flame heat, In addition to the thickness approximately equal to the thermal elongation dimension, the thickness is equal to or less than the thermal elongation dimension, and the thickness is equal to or greater than the thermal elongation dimension so as to suppress the deformation of the shoji by absorbing the elongation corresponding to the thickness. The spacer includes a thickness that does not rattle the shoji after the spacer is softened, melted, or burned out.

The invention of claim 2 among the present invention is characterized in that the refractory material is attached to the outdoor side and the indoor side of the spacer.

According to the first aspect of the present invention, when the sash is exposed to flame heat, the spacer first softens and is crushed by the recumbency that begins to grow as the temperature rises, thereby absorbing the recumbent elongation. . Finally, the spacer is melted or burned out, and the elongation of the reed can be absorbed by the thickness . The size of the thermal expansion when exposed to flame heat can be predicted from the material and length of the recumbent, so if the recumbent is shortened by a predetermined length based on the prediction and a spacer of the same thickness is attached, Deformation can be reliably prevented. In addition, when the sash is exposed to flame heat, the refractory material foams and closes the gap between the downpipe and the downside and blocks the flow of smoke. In addition, since the foamed refractory material has an air layer and is excellent in heat insulation, it is possible to suppress heat conduction from a part directly exposed to flame heat to another part and to reduce a damage range due to heat. In particular, when the spacer is made of a material that melts, the gas generated by melting is also blocked, and the melted spacer is wrapped to prevent the outflow.

According to the second aspect of the present invention, the sash is exposed to flame heat from either the outdoor side or the indoor side by attaching the refractory material to both the outdoor side and the indoor side of the spacer. However, the refractory material surely foams and closes the gap.

It is a disassembled perspective view of the spacer attachment part of 1st embodiment. It is a longitudinal cross-sectional view of the sash of this invention. It is a cross-sectional view of the sash of this invention. It is explanatory drawing of elongation absorption of a reed, (a) is normal time, (b) is at the time of a fire. The lower end part of the door-to-door side downside of an outdoor shoji is shown, (a) is a left side view, (b) is a front view, (c) is a right side view. The lower end part of the summit side downside of an outdoor shoji is shown, (a) is a left side view, (b) is a front view, (c) is a right side view. The lower end part of the door-to-door side downboard of an indoor shoji is shown, (a) is a left side view, (b) is a front view, (c) is a right side view. The lower end part of the summit side spatula of an indoor side shoji is shown, (a) is a left side view, (b) is a front view, (c) is a right side view. It is a disassembled perspective view of the spacer attachment part of a reference example .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the vertical direction represents the vertical direction in FIG. Here, as an example of a sash, as shown in FIGS. 2 and 3, an example of a sliding window in which two shojis 2a and 2b are placed in a frame 1 in a sliding manner will be given. In the first embodiment of the present invention, the frame body 1 is an upper frame 11, a lower frame 12, and left and right vertical frames 13 that are framed on four sides. Rails 11 a and 11 b are provided on the lower surface of the upper frame 11. The rails 12a and 12b are formed on the upper surface of the lower frame 12, and the two shojis 2a and 2b are accommodated so as to be slidable in the left-right direction. Each of the shojis 2a and 2b includes a left and right downside spatula 3, an upper and lower downside spatula 4 (upper side 41 and lower bottom side 42), and a panel 7. Is attached with the panel 7 (four ends are brought into contact with the inner peripheral side surface of the vertical rod 3 and bolted from the outer peripheral side of the vertical rod 3) and the panel 7 is fitted. is there. In this sash, the vertical rod 3 and the horizontal rod 4 of the shojis 2a and 2b (excluding the vertical rod 3 on the summing side of the outdoor shoji 2a) are connected to the outdoor side aluminum members 3c and 4c and the indoor side. This is a so-called composite sash formed by combining the resin members 3d and 4d.

  A spacer 5 is attached between the inner peripheral side surface of the vertical rod 3 and the end surface of the horizontal rod 4. FIG. 1 shows the case of the lower rod 42. The spacer 5 is a rectangular shape with a thickness of 3 mm, and two bolt holes 51 are formed on the upper and lower sides, and the vertical rod 3 and the lower rod 42 are joined. Bolt 8 to be penetrated. The vertical length of the spacer 5 is less than half of the vertical length of the end surface of the lower collar 42 and is located in the upper part of the end surface of the lower collar 42. The length of the spacer 5 in the indoor / outdoor direction is also the end surface of the lower collar 42 It is shorter than the indoor / outdoor direction length, and is located in the aluminum member 4c portion on the outdoor side of the end face of the lower collar 42. Furthermore, the refractory material 6 extended in the up-down direction is attached to the outdoor side and the indoor side of the spacer 5. The refractory material 6 is foamed by heat in the event of a fire, and is adhered to the inner peripheral side surface of the vertical rod 3. The vertical length is substantially the same as the vertical length of the end surface of the lower rod 42. 42 is in contact with the outdoor side and the indoor side of the end face of the aluminum member 4c. The upper collar 41 is substantially the same, but the spacer 5 attached to the upper collar 41 has one bolt hole and is located on the lower portion of the end surface of the upper collar 41 (FIG. 2).

  The spacer 5 in the present embodiment is made of ABS resin, starts to soften at about 100 ° C., and melts at about 300 ° C. When it melts, it produces flammable gas. The refractory material 6 is made of an epoxy-based material and foams at about 200 ° C. and expands in the thickness direction (perpendicular to the mounting surface).

  Regarding the sash of the present invention configured as described above, the spacer 5 and the refractory material 6 have no influence on the function of the normal sash at normal time (FIG. 4A). In the event of a fire (FIG. 4 (b)), the sash is exposed to the heat of the flame, so that the horizontal bar 4 begins to stretch in the longitudinal direction. However, when the temperature reaches about 100 ° C., the spacer 5 begins to soften. It is crushed by 4 and absorbs the elongation of the ridge 4. At this time, since the bolt 8 passes through the bolt hole 51 of the spacer 5 and is screwed into the lower rod 42, the head of the bolt 8 is separated from the contact surface of the vertical rod 3 by the extent that the horizontal rod 4 extends. As a result, the bolt 8 does not hinder the extension of the reed 4. When the temperature reaches about 200 ° C., the refractory material 6 foams and expands to the side wall 4 side, and enters the hollow of the side wall 4. Since the foamed refractory material 6 has elasticity, the foamed refractory material 6 is freely deformed to fill the space portion and close the gap between the horizontal bar 4 and the vertical bar 3. When the temperature reaches about 300 ° C., the spacer 5 is melted, and the end surface of the horizontal bar 4 comes into contact with the inner peripheral side surface of the vertical bar 3. The melted spacer 5 is received by the foamed refractory material 6 and does not flow out. In this way, the elongation of the side ridge 4 is absorbed by the initial thickness of the spacer 5, and the deformation of the shojis 2a and 2b can be prevented (in this embodiment, a spacer having a thickness of 3 mm at both the left and right ends of the side ledge 4). 5 is attached, so it can absorb 6mm elongation). The heat elongation dimension when exposed to flame heat can be predicted from the material and length of the reed 4, so that the reed 4 is shortened by a predetermined length based on the prediction, and the spacer 5 having the same thickness is attached. Just keep it. The refractory material 6 prevents the melted spacer 5 from flowing out, blocks the flow of gas generated when the spacer 5 melts, and further combustible gas generated by melting of the smoke and the sash resin member. Will also block the distribution of. In addition, since the foamed refractory material 6 has an air layer and is excellent in heat insulation, heat conduction from a part directly exposed to flame heat to another part can be suppressed, and a damage range due to heat can be reduced. . Since the refractory material 6 is attached to both the outdoor side and the indoor side of the spacer 5, the refractory material 6 is surely foamed regardless of whether the sash is exposed to flame heat from the outdoor side or the indoor side. Then close the gap. The reason why the size of the spacer 5 is smaller than the size of the end face of the horizontal gutter 4 is that if the spacer 5 is too large, undissolved residue is generated, which prevents the horizontal gutter 4 from absorbing its elongation. On the other hand, the vertical length of the refractory material 6 is substantially the same as the vertical length of the end face of the horizontal bar 4, and reliably closes the gap between the horizontal bar 4 and the vertical bar 3. Moreover, since the aluminum member 4c extends out of the horizontal bar 4 and the resin member 4d melts, the spacer 5 and the refractory material 6 are in contact with the aluminum member 4c portion.

  As shown in FIGS. 2 and 3, in the sash shoji 2 a and 2 b of the present invention, a panel support member 100 made of iron and having a U-shaped cross section is attached to the entire periphery of the panel 7. This is to prevent the panel 7 from coming off when the sash is exposed to flame heat and the downpipe 3 and the downside 4 are melted, and to maintain the airtightness of the sash.

  Further, a reinforcing material 110 made of iron and having a U-shaped cross section is inserted into the hollow of each vertical rod 3. The reinforcing material 110 extends over the entire length of the vertical rod 3 and is screwed from the outside. This is for suppressing the elongation of the downpipe 3 when the sash is exposed to flame heat.

  Further, an upper refractory material 61 is provided on the upper surface of the upper ridge 41, a lower refractory material 62 is provided on the lower inner surface of the lower ridge 42, and a vertical refractory material is provided on the door contact surface of the vertical ridge 3 on the door-to-door side. 63, the summoned refractory material 64 is attached to the summing surface of the vertical fence 3 on the summoning side of the outdoor shoji 2a. Both are made of the same material as the refractory material 6, and when the sash is exposed to flame heat, the gap formed between the frame 1 and the shoji 2a, 2b or shoji 2a, 2b is closed, and the sash is airtight. It is for maintaining sex.

  In addition, resin corner members 9 are attached to the upper and lower ends of each vertical rod 3 to close the opening. 5 to 8 show the lower ends of each vertical shaft 3 (the door-stop side of the outdoor shoji 2a, the summoning side, and the door-stop side of the indoor shoji 2b, the summoning side), and each corner. Although the member 9 is different in the shape of the details, each member 9 is fitted into the opening of the end portion of the vertical shaft 3 and a groove portion 91 is formed on the lower surface so as to straddle the rails 12a and 12b. And the groove part refractory material 65 is attached to the wall surface before and behind this groove part 91 inside. Further, as shown in FIGS. 5 (a) and 7 (c), in the vertical rod 3 on the door stop side, the outer peripheral side surface (door contact surface) of the corner member 9 is exposed, and the door extends up and down here. The refractory material 66 is attached. In addition, the groove part refractory material and the door-to-door refractory material are similarly attached to the corner member of the upper end part of each vertical gutter 3. The upper refractory material 61, the lower refractory material 62 and the vertical refractory material 63, the groove refractory material 65, and the door-to-door refractory material 66 expand and come into close contact with each other when exposed to flame heat. A continuous fire prevention line is formed around 2b, and the gap between the shojis 2a, 2b and the frame 1 can be closed without any gap, and the airtightness of the sash can be maintained.

  Moreover, as shown in FIGS. 5, 6 and 8, the lower surface (in the outdoor shoji 2 a) of the corner member 9 at the lower end portion of each vertical hoist 3 (excluding the vertical hoist 3 on the door side of the indoor shoji 2 b). The end portion refractory material 67 is attached along the groove portion 91 on the indoor side of the groove portion 91 and on the indoor side of the shoji 2b on the indoor side). This end refractory material 67 foams when exposed to flame heat and protects the corner member 9 itself from flame heat. In the present embodiment, the end refractory material is not attached to the lower surface of the corner member 9 of the vertical fence 3 on the door-to-door side of the indoor shoji 2b. An attachment 10 made of resin and communicating in the indoor / outdoor direction is attached to a position of the lower frame 12 facing the corner member 9 of the vertical wall 3 on the summoning side. This is shown in FIG. As shown to Fig.8 (a), it is a water stop piece for suppressing the inflow of the water to a room inner side. Further, as shown in FIG. 3 and FIG. 5 (a), the door 10 on the indoor side is also provided above the exhaust hole of the lower frame 12 as an attachment 10 on the lower side of the vertical fence 3 on the door side of the door 2a on the outdoor side. A stopper is attached. The summing-side attachment 10 (water-stop piece) itself communicates with the inside and outside of the room, and the door-side attachment 10 (stopper) covers the exhaust hole. If it disappears, the inside and outside of the sash communicate with each other. However, in the event of a fire, the end refractory material 67 on the lower surface of the corner member 9 foams and covers the attachment 10, so that the attachment 10 is exposed to flame heat and melts. Prevents the loss of airtightness through communication. In addition, an end refractory material is also attached to the upper surface of the corner member at the upper end portion of each vertical fence, and further, wind enters as an attachment at a position of the upper frame facing the corner member of the vertical flame 3 on the summoning side. A windscreen is attached to prevent noise leakage.

Next, a reference example will be described with reference to FIG. In the reference example , the shape and material of the spacer 5 are different from those of the first embodiment, and no refractory material is provided. The spacer 5 of the reference example has a shape in which the spacer of the first embodiment and the refractory material are integrated. That is, the spacer 5 has a rectangular base portion 52 and leg portions 53 extending downward from both lower ends of the base portion 52. . The length of the base 52 in the vertical direction is less than half of the vertical length of the end surface of the horizontal bar 4 (lower bar 42) and is located on the upper part of the end surface of the lower bar 42. The end surface of the lower rod 42 is shorter than the length in the indoor / outdoor direction, and is located in the aluminum member 4c portion on the outdoor side of the end surface of the lower rod 42. In addition, two bolt holes 51 are formed in the upper and lower portions of the base 52, and the bolts 8 that join the vertical rod 3 and the lower rod 42 pass therethrough. Further, the leg portions 53 are positioned on the outdoor side and the indoor side of the end surface of the aluminum member 4 c of the lower collar 42, and the lower ends thereof extend to the lower ends of the lower collar 42. The spacer 5 has fire resistance and is foamed by heat in the event of a fire, and is made of the same material as each of the above-mentioned refractory materials. Similarly, a spacer having a base portion and a leg portion is attached to the upper collar, but the spacer attached to the upper collar extends upward from both upper ends of the base portion.

In the reference example configured as described above, since the spacer 5 has elasticity, when the sash is exposed to the heat of the flame, the spacer 5 is crushed as the ridge 4 extends, and the ridge 4 Absorbs the elongation of Then, when the temperature reaches about 200 ° C., the spacer 5 is foamed and expands to the side wall 4 side and enters the hollow of the side wall 4. The foamed spacer 5 does not hinder the expansion of the horizontal rib 4 and freely deforms to fill the space portion, close the gap between the horizontal rib 4 and the vertical rib 3, and the smoke and the sash resin member melt. Block the flow of combustible gas generated by At this time, the spacer 5 as a whole foams and closes the gap over a wide range, so that the flow of smoke or the like can be reliably blocked. In addition, by forming the leg portions 53 on both the outdoor side and the indoor side, even if the sash is exposed to the flame heat from either the outdoor side or the indoor side, it surely foams and closes the gap. Further, since the base portion 52 and the leg portion 53 are integrated, manufacturing is easy. Furthermore, it is easy to attach the base 52 with the bolts 8 and it is easy.

The present invention is not limited to the above embodiment. For example, the present invention can be applied to various windows other than sliding windows. In addition, regarding the material of the spacer of the first embodiment, “what is softened, melted or burned out in the event of fire” means that the sash is softened, melted or burned at a lower temperature than downspout and recumbent when exposed to flame heat. Any material other than ABS resin, or a metal that melts at low temperatures such as paper, wood, or solder may be used. Furthermore, regarding each refractory material and the material of the spacer of the reference example , “what is foamed by heat at the time of fire” may be any material as long as it has similar properties. Moreover, about the shape of a spacer, it can change suitably according to the shape of a sash. Furthermore, about the shape of a refractory material, it can change suitably according to the shape of a sash, and you may attach to the upper and lower sides of a spacer, or may overlap with a spacer. Further, if the spacer and the refractory material are joined and integrated in advance, it is not necessary to attach them separately, and the construction becomes easy. Further, the spacer and the refractory material may be attached between the inner peripheral side surface of the vertical gutter on both the left and right sides and the end surface of the horizontal gutter as in the above embodiment, or may be attached to only one of the left and right sides. May be. In the reference example , the base portion and the leg portion of the spacer may be formed integrally or separately. When formed separately, the base may be fixed with bolts and the legs may be bonded to the inner peripheral side surface of the vertical gutter.

2a, 2b Shoji 3 Vertical gutter 4 Horizontal gutter 5 Spacer 6 Refractory material

Claims (2)

The shoji is equipped with a shovel, a recumbent fence, a spacer, and a refractory material , and upper and lower recumbent arms are attached between the left and right reeds . Softened and melted or burned with high heat, has a thickness that takes into account the thermal expansion dimension of the recumbent rib, and is attached between the inner peripheral side surface of at least one vertical wall and the end surface of the recumbent floor Thea is, refractory material, a fire, there is the spacer high temperature and spacer than the softening temperature for foaming at a temperature lower than a temperature to melt or burn out, between the inner periphery side and Yokokamachi end face of the stile , sash, characterized in Oh isosamples mounted arranged in such a manner as to wrap the spacer during foaming. Refractory material, sash according to claim 1, characterized in that is mounted to the outdoor side and indoor side spacer.

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