JP2019167707A - Support structure for thermal expandable member and fitting - Google Patents

Abstract

To improve the fire prevention property without affecting the manufacturing cost and the workability in manufacturing.SOLUTION: A structure for supporting a thermally expandable member 50C on an upper stile 22 constituting an inner sliding sash 20 of a fitting, includes: two spaced-apart engagement plates 62; and a support member 60C having a cover member 61 connecting between the engagement plates 62. An engagement receiving portion 22a and an engagement receiving portion 22b are provided on both sides in the width direction of the thermally expandable member 50C on the upper stile 22, the support member 60C is held by the upper stile 22 such that one of the engagement plates 62 is in engagement with the engagement receiving portion 22a via one of engaging pawl portions 63 and the other of the engagement plates 62 is in engagement with the engagement receiving portion 22b via the other of the engaging pawl portions 63, and the thermally expandable member 50C is interposed between the cover portion 61 and the upper stile 22.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a support structure for a thermally expandable member and a fitting.

  As a method for improving the fire resistance of the joinery, it is often performed to dispose a thermally expandable member having fire resistance such as expandable graphite on the frame material constituting the frame or the shoji. Usually, the heat-expandable member is affixed to the surface of the frame material with a double-sided tape, but there is a risk of peeling over time. For this reason, conventionally, a situation in which peeling occurs is prevented by screwing a screw into the frame material via a thermally expandable member or by providing holding portions on the frame material and pressing both side edges of the thermally expandable member. (For example, refer to Patent Document 1).

JP 2014-66067 A

  However, in order to screw a screw, it is necessary to provide a screw insertion hole by previously drilling a hole in the thermally expandable member, which may affect the manufacturing cost of the thermally expandable member. On the other hand, the method of providing the holding portion on the frame material reduces the influence on the manufacturing cost. However, the portions that hold down both side edges of the thermally expandable member protrude in the opposite direction, and the mutual distance is small with respect to the width of the thermally expandable member. For this reason, the operation | work which arrange | positions a thermally expansible member between the surface of a frame material and a holding | maintenance part becomes complicated, and there exists a possibility of affecting workability | operativity.

  In view of the above circumstances, an object of the present invention is to provide a support structure and a joiner for a thermally expandable member capable of improving fire resistance without affecting production costs and workability during production. .

  In order to achieve the above object, a support structure for a thermally expandable member according to the present invention is a structure for supporting a thermally expandable member with respect to a frame material constituting a joinery, and is provided separately from each other. A support member having a first engagement portion and a second engagement portion, and a cover portion connecting between the first engagement portion and the second engagement portion; A first engagement receiving portion and a second engagement receiving portion are provided at sites on both sides in the width direction, the first engagement portion is engaged with the first engagement receiving portion, and the first engagement receiving portion is provided. The support member is held by the frame material in a state where the two engaging portions are engaged with the second engagement receiving portion, and the thermally expandable member is interposed between the cover portion and the frame material. It is characterized by being.

  According to the present invention, if the frame member holds the support member, the surface of the thermally expandable member is interposed between the cover portion and the frame member. Therefore, even if the thermally expandable member is peeled off from the frame material over time, the position is maintained without dropping from the frame material. In addition, since the support member can be held by engaging the engagement portion with the engagement receiving portion with respect to the frame material, a hole is drilled in the thermally expandable member in advance or screws are screwed together. There is no need for work, and there is no possibility of affecting production costs and workability during production.

  Further, the present invention is characterized in that, in the above-described support structure for a thermally expandable member, the cover portion is provided with a pressing portion that is pressed against the surface of the thermally expandable member.

  According to the present invention, the pressing portion increases the frictional force between the surface of the thermally expandable member and the support member, and there is no possibility of causing a situation in which the position of the support member with respect to the thermally expandable member is shifted over time. The pressing portion may be a protrusion, or may be a protrusion that is a series along the length.

  According to the present invention, in the above-described support structure for a thermally expandable member, the support member is formed of a resin.

  According to the present invention, when the high temperature state is reached, the resin support member melts or burns out prior to the thermal expansion of the thermally expandable member. Even if it is provided, there is no possibility of hindering the thermal expansion of the thermally expandable member.

  According to the present invention, in the above-described support structure for a thermally expandable member, the support member is formed of metal, and an opening is provided at a portion facing the surface of the thermally expandable member. And

  According to this invention, since the opening part is provided in the cover part which opposes the surface of a thermally expansible member, when a thermally expansible member is heated, it comes to be able to expand through an opening part. . Accordingly, the support member can be disposed at a portion extending over the entire length of the thermally expandable member, and can be more reliably prevented from falling off the frame material.

  Moreover, the joinery which concerns on this invention applied the support structure mentioned above, and made the said frame material support the said thermally expansible member, It is characterized by the above-mentioned.

  According to the present invention, if the frame member holds the support member, the surface of the thermally expandable member is interposed between the cover portion and the frame member. Therefore, even if the thermally expandable member is peeled off from the frame material over time, the position is maintained without dropping from the frame material. In addition, since the support member can be held by engaging the engagement portion with the engagement receiving portion with respect to the frame material, a hole is drilled in the thermally expandable member in advance or screws are screwed together. There is no need for work, and there is no possibility of affecting production costs and workability during production.

  According to the present invention, when the frame member holds the support member, the surface of the thermally expandable member is interposed between the cover portion and the frame member. Therefore, even if the thermally expandable member is peeled off from the frame material over time, the position is maintained without dropping from the frame material. In addition, since the support member can be held by engaging the engagement portion with the engagement receiving portion with respect to the frame material, a hole is drilled in the thermally expandable member in advance or screws are screwed together. There is no need for work, and there is no possibility of affecting production costs and workability during production.

It is a longitudinal cross-sectional view of the fitting to which the support structure of the thermally expansible member which is embodiment of this invention is applied. It is a cross-sectional view of the joinery shown in FIG. It is a principal part expanded vertical sectional view which shows the upper frame part of the fitting shown in FIG. It is a principal part expanded vertical sectional view which shows the upper collar part of the fitting shown in FIG. It is a principal part expanded longitudinal cross-sectional view which shows the lower collar part of the fitting shown in FIG. The support member applied to the frame material of the joinery shown in FIG. 1 is shown, (a) is an end view, (b) is a perspective view. FIGS. 7A and 7B show a first modification of the support member shown in FIG. 6, in which FIG. 6A is an end view, and FIG. FIGS. 7A and 7B show a second modification of the support member shown in FIG. 6, wherein FIG. 6A is an end view, and FIG. The support member applied to the frame of the joinery shown in FIG. 1 is shown, (a) is an end view, and (b) is a perspective view. FIGS. 9A and 9B show a third modification of the support member shown in FIG. 9, wherein FIG. 9A is an end view and FIG. 9B is a perspective view. FIGS. 9A and 9B show a fourth modification of the support member shown in FIG. 9, wherein FIG. 9A is an end view and FIG. 9B is a perspective view.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a support structure for a thermally expandable member and a fitting according to the present invention will be described in detail with reference to the accompanying drawings.
FIG.1 and FIG.2 shows the joinery to which the support structure of the thermally expansible member which is embodiment of this invention is applied. The joinery illustrated here is called a sliding window in which an indoor shoji 20 on the indoor side and an outer shoji 30 on the outdoor side are slidably arranged in the left-right direction with respect to the frame body 10. In the illustrated example, when viewed from the indoor side, the frame 10 can be closed by disposing the inner shoji 20 on the right side and the outer shoji 30 on the left side. . However, the structure of the joinery is configured such that the frame 10 can be closed by placing the outer shoji 30 on the right side and the inner shoji 20 on the left side when viewed from the indoor side. It may be. Moreover, the code | symbol 40 in a figure is a screen door.

  The frame 10 is configured by four-frames of an upper frame (frame material) 11, a lower frame (frame material) 12, and left and right vertical frames (frame material) 13, and is attached to an opening provided in the housing B. is there. The inner shoji 20 and the outer shoji 30 are respectively provided with an upper collar (frame material) 22, 32, a lower collar (frame material) 23, 33, and left and right vertical frames on the four sides of a rectangular surface material 21, 31 such as glass. It is configured by attaching ridges (frame members) 24 and 34. As is clear from the figure, the upper frame 11 and the lower frame 12 are provided with inner rail portions 11a, 12a on the indoor side and outer rail portions 11b, 12b on the outdoor side at portions facing each other. The inner shoji 20 is slidably disposed on the side rail portions 11a and 12a, and the outer shoji 30 is slidably disposed on the outer rail portions 11b and 12b.

  As the respective frame members 11, 12, and 13 constituting the frame body 10, the indoor side inner frame portions 11A, 12A, and 13A and the outdoor side outer frame portions 11B, 12B, and 13B that are arranged in parallel in the prospective direction. A material in which the connecting materials 11C, 12C, and 13C are interposed is applied. Here, the prospective direction is a direction along the depth of the joinery as indicated by an arrow A in the drawing. A surface along the prospective direction may be referred to as a prospective surface. In this embodiment, the term “finding direction” is also used. The finding direction is a direction along the top and bottom perpendicular to the prospective direction in the case of the one extending along the horizontal direction such as the upper frame 11 and the lower frame 12. In the case of things extending along the up-and-down direction such as the vertical frame 13, the direction along the horizontal direction perpendicular to the prospective direction is referred to as the finding direction. In the following, for the sake of convenience, the left and right sides of the joinery are distinguished based on the case viewed from the indoor side.

  The inner frame portions 11A, 12A, and 13A and the outer frame portions 11B, 12B, and 13B are extruded shapes formed by an aluminum alloy metal, respectively. The connecting materials 11C, 12C, and 13C are formed of a resin having heat insulation properties. As is apparent from the figure, in the upper frame 11, both the inner rail portion 11a and the outer rail portion 11b are provided in the outer frame portion 11B, and the connecting material 11C is arranged at a position offset toward the indoor side. It is set up. On the other hand, in the lower frame 12, an inner rail portion 12a is provided in the inner frame portion 12A, and an outer rail portion 12b is provided in the outer frame portion 12B. The connecting material 12C is disposed at the position. In the left and right vertical frames 13, a connecting member 13 </ b> C is disposed at a position offset toward the indoor side corresponding to the upper frame 11. Each of the connecting members 11C, 12C, and 13C is filled in the accommodating portion 14 provided so as to protrude to the outer peripheral side of the frame members 11, 12, and 13, and is larger than the plate thickness of the frame members 11, 12, and 13 It is configured to have a plate thickness. A decorative material 15 formed of a resin is disposed on the prospective surface of each frame member 11, 12, 13 that is disposed on the indoor side.

  As the saddle members 22, 23, 24 that constitute the inner shoji 20, the indoor inner saddle portions 22 A, 23 A, 24 A and the outdoor outer saddle portions 22 B, 23 B, which are arranged side by side in the prospective direction. A composite type having 24B and mutually engaged is applied. Similarly, as the saddle members 32, 33, and 34 that constitute the outer shoji 30, the inner saddle portions 32A, 33A, and 34A on the indoor side and the outer outward side except for the vertical rod 34 that is located on the right side. What has the collar parts 32B, 33B, and 34B is applied. The inner flange portions 22A, 23A, 24A, 32A, 33A, and 34A are extruded shape members formed of resin. The outer flange portions 22B, 23B, 24B, 32B, 33B, and 34B are extruded shape members formed of a metal such as an aluminum alloy. Note that the downboard 34 located on the right side of the outer shoji 30 is summoned together with the downboard 24 located on the left side of the inner shoji 20, and is formed only of a metal such as an aluminum alloy.

  In this joinery, thermally expandable members 50A, 50B, 50C, and 50D are arranged at portions that can be through holes indoors and outdoors when a fire occurs. The heat-expandable members 50A, 50B, 50C, and 50D are non-flammable or flame-retardant fire-resistant members that expand due to heat, and have a long cross-sectional shape with a small plate thickness with respect to the dimension in the width direction. Yes. As this type of thermally expandable member 50A, 50B, 50C, 50D, for example, a graphite-containing foam material having thermally expandable properties can be applied.

  In the frame body 10 of the present embodiment, in the upper frame 11 and the left and right vertical frames 13, the frame members 11, 13 are arranged at outer peripheral portions between the inner frame portions 11 A, 13 A and the outer frame portions 11 B, 13 B. The first thermally expansible member 50A is disposed along the length of the. Further, on the prospective surface on the inner peripheral side of the upper frame 11, the second thermally expandable member 50 </ b> B along the length of the upper frame 11 is located at a position located between the inner rail portion 11 a and the outer rail portion 11 b. Is arranged. More specifically, as described above, the accommodating portion 14 is provided between the inner frame portions 11A and 13A and the outer frame portions 11B and 13B so as to protrude to the outer peripheral side. The first thermally expandable member 50A is disposed in a region extending from the inner frame portions 11A, 13A to the outer frame portions 11B, 13B. Between the inner rail portion 11a and the outer rail portion 11b, a frame concave groove 11c that opens to the inner peripheral side is formed, and the second thermally expandable member 50B is formed on the inner top surface of the frame concave groove 11c. Is arranged. As is clear from the figure, the width direction of each of the first thermally expandable member 50A and the second thermally expandable member 50B coincides with the prospective direction.

  On the other hand, the inner shoji 20 has a third heat along the longitudinal direction of each of the collar members 22 and 24 on the prospective surface on the inner peripheral side of the outer collar portions 22B and 24B in the upper collar 22 and the right vertical collar 24. An inflatable member 50C is provided. A fourth thermally expandable member 50D is disposed along the length of the lower collar 23 on the prospective surface of the lower collar 23 on the outer peripheral side of the outer collar portion 23B. Similarly, the outer shoji 30 has a third surface along the length of each of the collar members 32 and 34 on the prospective surface on the inner peripheral side of the outer collar portions 32B and 34B in the upper collar 32 and the left longitudinal collar 34. A thermally expandable member 50C is provided. In addition, a fourth thermally expandable member 50D is disposed along the length of the lower rod 33 on the prospective surface of the lower rod 33 on the outer peripheral side of the outer flange portion 33B. As is clear from the figure, the width direction of each of the third thermally expandable member 50C and the fourth thermally expandable member 50D coincides with the prospective direction.

  Although not clearly shown in the figure, when the thermally expandable members 50A, 50B, 50C, 50D are disposed on the frame members 11, 12, 13 and the flange members 23, 33, 34, double-sided tape, adhesive, etc. It is preferable to adhere by applying the above-mentioned bonding means.

  As shown in FIGS. 3, 4, and 5, a metal frame outer peripheral support member 60 </ b> A is attached to the first thermally expandable member 50 </ b> A, and a metal frame peripheral support member 60 </ b> B is attached to the second thermally expandable member 50 </ b> B. A frame inner periphery support member 60B is mounted. The third thermally expandable member 50C is equipped with a resin heel inner periphery support member 60C, and the fourth thermally expandable member 50D is equipped with a metal heel outer periphery support member 60D. Hereinafter, the frame outer periphery support member 60A, the frame inner periphery support member 60B, the heel inner periphery support member 60C, and the heel outer periphery support member 60D will be described, and the frame members 11, 12, 13 and the flange members 23, 33, 34 will be described. The structure corresponding to the support members 60A, 60B, 60C, and 60D will be described, and the features of the present invention will be described in detail. In the present embodiment, the support members denoted by the same reference numerals have the same configuration. Therefore, in the following, for the sake of convenience, the first thermal expandable member 50A, the frame outer peripheral support member 60A, the second expandable member 50B, and the frame inner peripheral support member 60B will be described with the upper frame 11 shown in FIG. I decided to. Similarly, the third thermal expansile member 50C and the collar inner peripheral support member 60C will be described with the upper collar 22 of the inner shoji 20 shown in FIG. For 60D, the lower lid 23 of the inner shoji 20 shown in FIG.

(About the frame outer periphery support member 60A)
As shown in FIGS. 3, 6A and 6B, the frame outer periphery support member 60A includes a cover portion 61 having a flat plate shape with a width larger than that of the first thermally expandable member 50A, and a cover. The engagement plate portions 62 provided on both side edge portions of the portion 61 are integrally formed. The cover portion 61 is configured to have a slightly larger width than the accommodating portion 14 so that the accommodating portion 14 of the upper frame 11 can be disposed between the engaging plate portions (engaging portions) 62. is there. The engaging plate portion 62 extends substantially in parallel from the cover portion 61 in the same direction, and is inclined outward so that the protruding edge portions are separated from each other. Engaging claw portions (engaging portions) 63 project from the engaging plate portions 62 in directions close to each other. The engaging claws 63 are inclined so as to gradually approach the cover 61 as they approach each other.

  In the accommodating portion 14 to which the frame outer peripheral support member 60A is mounted, the engagement receiving portions 14a are provided at portions on both sides in the width direction of the first thermally expandable member 50A. The engagement receiving part 14a protrudes slightly toward the indoor side and the outdoor side so that the dimension along the prospective direction of the accommodating part 14 is slightly increased.

  In order to mount the first thermally expandable member 50 </ b> A and the frame outer peripheral support member 60 </ b> A on the accommodating portion 14, the first thermally expandable member 50 </ b> A is disposed on the outer peripheral portion of the accommodating portion 14, and then the engagement plate portion 62. What is necessary is just to arrange | position and push in the accommodating part 14 between. That is, if the accommodating part 14 is arrange | positioned between the engaging plate parts 62, the engaging nail | claw part 63 provided in the engaging plate part 62 will be engaged with the engagement receiving part 14a of the accommodating part 14, and accommodation will be carried out. The frame outer peripheral support member 60A is prevented from falling off from the portion 14, and the cover portion 61 that connects the two engagement plate portions 62 is disposed to face the surface of the first thermally expandable member 50A. Therefore, unlike the conventional case, there is no need to screw a screw or to dispose the first thermally expandable member 50A in a narrow portion, so there is no need to drill holes in the first thermally expandable member 50A. There is no risk of complicating the work. Moreover, even if the bonded state between the first thermally expansible member 50A and the accommodating portion 14 is canceled due to the influence of aging, the first thermally expansible member 50A is accommodated by the cover portion 61 of the frame outer peripheral support member 60A. 14, and the first thermally expandable member 50 </ b> A interposed between the upper frame 11 and the frame outer peripheral support member 60 </ b> A is not likely to drop off from the upper frame 11. As a result, when exposed to a high temperature such as when a fire occurs, the expanded first thermally expandable member 50A closes the gap between the upper frame 11 and the housing B, so that it can be used indoors and outdoors. Since there is no possibility that a through-hole is formed, this is advantageous in terms of fire resistance.

  In the illustrated example, since the cover portion 61 has a flat plate shape, when the frame outer peripheral support member 60A is provided in a portion extending over the entire length of the first thermally expandable member 50A, the first thermally expandable member 50A is It becomes difficult to expand so as to close the gap between the upper frame 11 and the housing B. For this reason, although not explicitly shown in the drawing, the frame outer peripheral support member 60A is disposed at a plurality of locations along the length of the first thermally expansible member 50A with a space between each other.

  In order to arrange the frame outer peripheral support member 60A over the entire length of the first thermally expandable member 50A, for example, the frame outer peripheral support member 60A ′ of the first modification shown in FIG. 7A and FIG. As shown in the frame outer peripheral support member 60A ″ of the modified example 2 shown in FIG. 8 (a) and FIG. 8 (b), an opening 61a may be provided in the cover 61. That is, it is exposed to a high temperature state. In this case, the first thermally expandable member 50A easily and surely expands to the outer peripheral side through the opening 61a of the cover portion 61. Therefore, the outer periphery of the frame is supported over the entire length of the first thermally expandable member 50A. Even if the member 60A is provided, the gap between the upper frame 11 and the housing B can be closed, and a situation where a through-hole is formed indoors and outdoors can be prevented.

  Further, in the frame outer periphery support member 60A ″ of the modified example 2, a protruding pressing part 61b cut and raised in the cover part 61 is provided. The pressing part 61b protrudes in the extending direction of the engagement plate part 62. Thus, when mounted on the accommodating portion 14, it functions so as to be pressed against the first thermally expandable member 50A. Therefore, according to the frame outer peripheral support member 60A ″ of the second modification, the accommodating portion 14 It is possible to prevent a situation in which the first thermal expansible member 50A is displaced along the length of the first thermal expansible member 50A after being mounted on. In particular, when a plurality of frame outer periphery support members 60A ″ are provided with a space between each other, the mutual distance is maintained by the pressing portion 61b. 1 There is no possibility of causing a situation where the thermally expandable member 50A falls off.

(About the frame inner periphery support member 60B)
As shown in FIG. 3, the frame inner periphery support member 60 </ b> B includes a cover portion 61 having a flat plate shape wider than the second thermally expansible member 50 </ b> B, and engagement plate portions provided on both side edges of the cover portion 61 ( (Engagement portion) 62 is integrally formed. A pressing portion 61b is provided at a portion of the cover portion 61 that faces the prospective surface of the outer frame portion 11B so as to protrude toward the prospective surface of the outer frame portion 11B. As the pressing portion 61b, a cut-and-raised protrusion-like member can be applied as in the frame outer peripheral support member 60A ″ of the modification 2. The engagement plate portion 62 extends from the cover portion 61 in the same direction. It exists, and it inclines so that it may mutually space apart gradually as it separates from the cover part 61. FIG.

  On the outer frame portion 11B to which the frame inner periphery support member 60B is mounted, engagement receiving portions 11d project from the opening edge portions of the frame concave grooves 11c in directions opposite to each other. 11 d of engagement receiving parts are located in the site | part used as the both sides of the width direction of the 2nd thermal expansible member 50B, and the mutual space | interval is comprised smaller than the mutual space | interval of the engagement board part 62. FIG.

  In order to attach the second thermally expandable member 50B and the frame inner periphery support member 60B to the outer frame portion 11B, the second thermally expandable member 50B is disposed on the inner top surface of the frame concave groove 11c. The pressing portion 61b may be pushed into the frame groove 11c while bending the engaging plate portion 62 in a posture facing the second thermally expandable member 50B. That is, the frame inner peripheral support member 60B pushed into the frame concave groove 11c while bending the engagement plate portion 62 is expanded by the elastic restoring force when the engagement plate portion 62 passes through the engagement receiving portion 11d. Each extending edge portion comes into contact with the engagement receiving portion 11d, so that the falling from the frame concave groove 11c is prevented, and the cover portion 61 that connects between the two engagement plate portions 62 is the second. It arrange | positions so that the surface of the thermally expansible member 50B may be opposed. Therefore, unlike the conventional case, there is no need to screw a screw or dispose the second thermally expansible member 50B in a narrow portion, so there is no need to drill holes in the second thermally expansible member 50B. There is no risk of complicating the work. Moreover, even if the bonded state between the second thermally expandable member 50B and the outer frame portion 11B is canceled due to the influence of aging, the second thermally expandable member 50B is covered by the cover portion 61 of the frame inner periphery support member 60B. Is maintained by the outer frame portion 11B, and the second thermally expandable member 50B interposed between the upper frame 11 and the frame inner periphery support member 60B may fall off the upper frame 11. There is no. As a result, when exposed to a high temperature such as when a fire occurs, the expanded second thermally expandable member 50B closes the gap between the upper frame 11 and the upper collar 22 of the inner shoji 20. Therefore, there is no possibility that a through-hole is formed indoors and outdoors, which is advantageous in terms of fire resistance.

  In the illustrated frame inner periphery support member 60B, the cover portion 61 has a flat plate shape as in the case of the frame outer periphery support member 60A. Therefore, when the cover portion 61 is provided over the entire length of the second thermally expandable member 50B, It becomes difficult to expand so as to close the gap between the frame 11 and the upper collar 22 of the inward shoji 20. For this reason, although not explicitly shown in the figure, the frame inner periphery support member 60B is disposed at intervals in a plurality of locations along the length of the second thermally expandable member 50B. As described above, the pressing portion 61b is provided in the cover portion 61 of the frame inner periphery support member 60B. Accordingly, even when a plurality of frame inner periphery support members 60B are provided with a space between each other, the pressing portion 61b is pressed against the second thermally expandable member 50B, and the mutual space is maintained. Therefore, there is no possibility of causing a situation where the second thermally expandable member 50B falls off due to the displacement of the frame inner periphery support member 60B.

(About the inner peripheral support member 60C)
As shown in FIGS. 4, 9 (a) and 9 (b), the heel inner periphery support member 60 </ b> C includes a cover portion 61 having a flat plate shape having a width larger than that of the third thermally expandable member 50 </ b> C, An engagement plate portion (engagement portion) 62 provided on both side edges of the cover portion 61 is integrally formed. A protruding pressing portion 61b is provided at a portion of the cover portion 61 that faces the prospective surface of the outer collar portion 22B so as to project toward the prospective surface of the outer collar portion 22B. The engaging plate portion 62 extends from both side edge portions of the cover portion 61 so as to be substantially parallel in the same direction, and has an engaging claw portion (engaging portion) 63 at each protruding edge portion. ing. The engaging claw portion 63 protrudes from the engaging plate portion 62 in a direction facing each other. As is apparent from the drawing, in the present embodiment, two engagement plate portions 62 are provided so as to have different extension lengths.

  Engagement receiving portions 22a and 22b are provided on the outer flange portion 22B to which the flange inner peripheral support member 60C is mounted at the portions on both sides in the width direction of the third thermally expandable member 50C. One engagement receiving portion 22a protrudes toward the inner peripheral side from the prospective surface on which the third thermally expandable member 50C is disposed, and then substantially perpendicular to the direction away from the third thermally expandable member 50C. It is bent. The other engagement receiving portion 22b protrudes in the expected direction with respect to the recess 22c adjacent to the expected surface on which the third thermally expandable member 50C is disposed.

  In order to mount the third thermally expandable member 50C and the flange inner peripheral support member 60C on the outer flange portion 22B, the third thermally expandable member 50C is disposed on the prospective surface of the outer flange portion 22B. The engagement claw portion 63 of the engagement plate portion 62 having a small extension length is engaged with one engagement receiving portion 22a, and the engagement claw portion 63 of the engagement plate portion 62 having a long extension length is engaged with the other. The engagement receiving portion 22b may be engaged. That is, if the engaging claw 63 of the engaging plate 62 is engaged with the engaging receiving portions 22a and 22b of the outer flange portion 22B, the inner peripheral support member 60C is removed from the outer flange portion 22B. The cover part 61 that connects between the two engaging plate parts 62 is disposed so as to face the surface of the third thermally expandable member 50C. Therefore, unlike the conventional case, there is no need to screw a screw or to dispose the third thermally expandable member 50C in a narrow portion, so there is no need to drill the third thermally expandable member 50C. There is no risk of complicating the work. Moreover, even if the bonded state between the third thermally expandable member 50C and the outer flange portion 22B is canceled due to the influence of aging, the third thermally expandable member 50C is covered by the cover portion 61 of the flange inner peripheral support member 60C. Is maintained by the outer collar portion 22B, and the third thermally expandable member 50C interposed between the outer collar portion 22B and the collar inner peripheral support member 60C is dropped from the upper collar 22. There is no fear. As a result, when exposed to a high temperature, such as when a fire breaks out, even if the inner flange portion 22A made of resin melts or burns out, the expanded third thermally expandable member 50C expands the outer flange. The gap between the portion 22B and the face material 21 is closed. This eliminates the possibility of forming a through-opening indoors and outdoors, which is advantageous in terms of fire resistance. As described above, the pressing portion 61b is provided in the cover portion 61 of the heel inner periphery support member 60C. Therefore, even when a plurality of heel inner periphery support members 60C are provided with a space between each other, the pressing portion 61b is pressed against the third thermally expandable member 50C, and the mutual space is maintained. Therefore, there is no possibility of causing a situation where the third thermally expandable member 50C is dropped due to the positional deviation of the inner periphery supporting member 60C. On the other hand, the heel inner periphery support member 60C is formed of resin. Accordingly, even when the heel inner peripheral support member 60C is disposed in a portion extending over the entire length in order to more reliably prevent the third thermally expandable member 50C from falling off, it is exposed to a high temperature state as in the case of the inner heel portion 22A. In such a case, the heel inner periphery support member 60C is melted or burned out, and there is no possibility of hindering the thermal expansion of the third thermally expandable member 50C.

  In the illustrated heel inner periphery support member 60C, the cover portion 61 is provided with a protruding pressing portion 61b. However, the ridge of the third modification shown in FIGS. 10 (a) and 10 (b) is shown. Like the inner peripheral support member 60 </ b> C ′, a protrusion-shaped pressing portion 61 b ′ extending over the entire length of the cover portion 61 may be provided. In particular, since the inner peripheral support member 60C formed of resin can be provided over the entire length of the third thermally expandable member 50C, the modification shown in FIGS. 11A and 11B. As shown in FIG. 4, the inner peripheral support member 60 </ b> C ″ may be configured assuming that the cover portion 61 does not have the pressing portion 61 b.

(About the outer periphery support member 60D)
As shown in FIG. 5, the outer peripheral support member 60D includes a cover portion 61 having a flat plate shape wider than the fourth thermally expandable member 50D, and engagement plate portions (engagement members provided on both side edges of the cover portion 61). Joint part) 62 is integrally molded. A pressing portion 61 b is provided at a portion of the cover portion 61 that faces the prospective surface of the upper frame 11 so as to protrude toward the prospective surface of the upper frame 11. As the pressing portion 61b, a cut-and-raised protrusion-like member can be applied as in the frame outer peripheral support member 60A ″ of the modification 2. The engagement plate portion 62 extends from the cover portion 61 in the same direction. It exists, and it inclines so that it may mutually space apart gradually as it separates from the cover part 61. FIG.

  On the outer collar portion 23B of the lower collar 23 to which the collar outer peripheral support member 60D is mounted, engagement receiving portions 23b are provided in the opposite directions to the opening edge portions of the recessed groove 23a for the door wheel that opens on the lower surface. Projected. The engagement receiving portion 23b is located at a portion on both sides in the width direction of the fourth thermally expandable member 60D, and the mutual interval is configured to be smaller than the mutual interval of the engagement plate portion 62.

  In order to mount the fourth thermally expandable member 50D and the collar outer peripheral support member 60D on the outer flange portion 23B, after the fourth thermally expandable member 50D is disposed on the inner top surface of the recessed groove 23a for the door wheel. The pressing portion 61b may be pushed into the door groove 23a while bending the engaging plate portion 62 in a posture facing the fourth thermally expandable member 50D. In other words, when the engagement plate portion 62 is bent, the heel outer peripheral support member 60D pushed into the door groove 23a is expanded by the elastic restoring force when the engagement plate portion 62D passes through the engagement receiving portion 23b. Each extending edge portion comes into contact with the engagement receiving portion 23b, so that it is prevented from falling off from the recessed groove 23a for the door wheel, and the cover portion 61 that connects the two engagement plate portions 62 is the first. It arrange | positions so that the surface of 4 thermal expansible member 50D may be opposed. Therefore, unlike the conventional case, there is no need to screw a screw or to dispose the fourth thermally expandable member 50D in a narrow portion, so there is no need to drill the fourth thermally expandable member 50D. There is no risk of complicating the work. Moreover, even if the adhesive state between the fourth thermally expandable member 50D and the outer flange portion 23B is released due to the influence of aging, the fourth thermally expandable member 50D is covered by the cover portion 61 of the flange outer peripheral support member 60D. The state where the outer heel portion 23B is supported is maintained, and the fourth thermally expandable member 50D interposed between the outer heel portion 23B and the heel outer peripheral support member 60D may fall off the lower heel 23. There is no. As a result, when exposed to a high temperature state, such as when a fire occurs, the expanded fourth thermally expandable member 50D closes the gap between the lower rod 23 and the inner rail portion 12a of the lower frame 12. As a result, there is no possibility that a through-hole is formed inside or outside the room, which is advantageous in terms of fire resistance.

  Although not clearly shown in the drawing, in the illustrated collar outer peripheral support member 60D, the cover portion 61 has a flat plate shape. Therefore, like the frame outer peripheral support member 60A, the length of the fourth thermally expandable member 50D is long. Are disposed at a plurality of positions along the line with a space between each other. As described above, the pressing portion 61b is provided in the cover portion 61 of the heel outer periphery supporting member 60D. Therefore, even when a plurality of heel outer peripheral support members 60D are disposed with a space between each other, the pressing portion 61b is pressed against the fourth thermally expandable member 50D, and the mutual space is maintained. There is no possibility that the fourth thermally expandable member 50D will drop off due to the displacement of the outer periphery support member 60D.

  In the embodiment described above, the sliding window is exemplified as the joinery, but the present invention can be applied to other joinery in the same manner. In addition, the frame member is exemplified by connecting the inner frame portion and the outer frame portion by a connecting material made of a heat insulating material, and the inner rod portion made of resin and the outer rod made of metal as the collar material. However, the present invention is not necessarily limited to these. For example, as the frame material and the brazing material, those integrally formed with a metal such as an aluminum alloy or a resin may of course be applied. Furthermore, the position where the thermally expandable member is disposed is not limited to that of the embodiment.

  In the above-described embodiment, the heat-expandable member is pressed against the frame material by the pressing portion. However, the support member may be configured to press the heat-expandable member against the frame material by the cover portion. Good. Furthermore, although a flat plate is illustrated as the cover portion, the cover portion is not necessarily a flat plate shape, and any shape may be used as long as it connects two engaging portions. Absent. The metal support member is provided with engaging portions having the same shape on both sides of the cover portion, while the resin support member is provided with engaging portions having different shapes on both sides of the cover portion. Of course, the metal support members may be provided with engaging portions having different shapes, or the resin support members may be provided with the same shape of support members. Moreover, although the metal support member and the resin support member are mixed in one joinery, it is of course possible to apply a support member made of any one of the materials.

  11 Upper frame, 12 Lower frame, 13 Vertical frame, 11d Engagement receiving part, 14a Engagement receiving part, 22, 32 Upper collar, 22a, 22b Engagement receiving part, 23, 33 Lower collar, 23b Engagement receiving part, 24, 34 downpipe, 50A, 50B, 50C, 50D thermal expansion member, 60A, 60B, 60C, 60D support member, 61 cover part, 61a opening part, 61b pressing part, 62 engagement plate part, 63 engagement claw part

Claims (5)

A structure for supporting the thermally expandable member with respect to the frame material constituting the joinery,
A support member having a first engagement portion and a second engagement portion provided apart from each other, and a cover portion connecting between the first engagement portion and the second engagement portion;
In the frame material, a first engagement receiving portion and a second engagement receiving portion are provided at portions on both sides in the width direction of the thermally expandable member,
The support member is held by the frame member in a state where the first engagement portion is engaged with the first engagement receiving portion and the second engagement portion is engaged with the second engagement receiving portion. A support structure for a thermally expandable member, wherein the thermally expandable member is interposed between the cover portion and the frame member.   The support structure for a thermally expandable member according to claim 1, wherein the cover portion is provided with a pressing portion that is pressed against a surface of the thermally expandable member.   The support structure for a thermally expandable member according to claim 1 or 2, wherein the support member is formed of resin.   3. The thermally expandable member according to claim 1, wherein the support member is formed of a metal, and an opening is provided in a portion facing the surface of the thermally expandable member. Support structure.   A joinery characterized by applying the support structure according to any one of claims 1 to 4 to support the thermally expandable member on the frame material.