JP2011012414A - Ventilation layer forming member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation layer forming member which can preliminarily keep its width at a predetermined value in accordance with the arrangement pitch between rafters, which can be prevented from sagging by itsself-weight, to the utmost, and which is excellent in mounting workability.SOLUTION: This ventilation layer forming member 101 is installed in the state of having both side ends fixed between adjacent rafter materials, and sandwiched between a heat insulating material infilled between the rafter materials and a sheathing roof board provided on the upside of the rafter material. The ventilation layer forming member 101 has ventilation passages 103a and 103b in the direction of the elongation of the rafter material partitioned and formed in its installation portion. The ventilation layer forming member 101, which is molded from a corrugated board made of paper or a resin, includes a ventilation passage forming portion 105 which forms the ventilation passage, and locking portions 107 which are provided at both the side ends of the ventilation passage forming portion and fixed and locked to the rafter material. The ventilation passage forming portion includes the ventilation passages 103a and 103b which can be freely expanded/contracted in the direction of the arrangement pitch of the rafter material, and a guiding plate 111 which guides the expansion/contraction of the ventilation passage so as to keep the arrangement-pitch-direction width dimension of the ventilation passage forming portion at a predetermined value.

Description

  The present invention is installed by being sandwiched between a heat insulating material filled between suspended timbers and a field plate provided on the upper side of the suspended timbers, and a ventilation path along the extending direction of the suspended timbers is defined in the installation site. It is the technique regarding improvement of the ventilation layer forming member.

  Conventionally, in a house, as shown in FIG. 6, a heat insulating material 7 is filled between a plurality of suspended timbers 5 provided in parallel at a predetermined arrangement pitch below the base plate 3 of the roof 1. However, when the heat insulating material 7 is constructed, it is common to form a ventilation layer 9 between the heat insulating material 7 and the base plate 3.

  Here, as a technique for forming the ventilation layer 9, for example, a ventilation layer securing member described in Utility Model Registration No. 3127043 is known. As shown in FIG. 7, the ventilation layer securing member 11 is made of corrugated cardboard, and is provided with first convex portions 13 bent in a mountain shape on each of the edge portions 11 a on two sides in contact with the hanging wood, Between these 1st convex parts 13 and 13, one or more 2nd convex parts 15 similarly bent in the mountain shape are provided. In other words, by changing the bending angle of each of the first and second convex portions 13 and 15, the width in the arrangement pitch direction of the hanging wood in the ventilation layer securing member 11 can be adjusted to be enlarged or reduced. Regardless of the arrangement pitch of the rafters depending on the specifications of the house to be constructed, the arrangement pitch can be flexibly accommodated.

Utility Model Registration No. 3127043

  However, in the conventional ventilation layer securing member 11, it is difficult to keep the width at a predetermined value in advance in accordance with the arrangement pitch of the hanging lumber 5, and the operator can reduce the width at the time of installation. Both ends had to be fixedly locked to the hanging wood 5 while adjusting by hand, which was troublesome.

  Further, when the ventilation layer securing member 11 is installed after the field board 3 has been attached to the hanging lumber, both sides are fixedly locked to the hanging wood 5 while being pressed against the field board 3 from below. In this case, the ventilation layer securing member 11 tends to hang along the folding lines of the first and second convex portions 13 and 15 due to its own weight, and the mounting operation is more difficult and troublesome. There was a problem of becoming.

  The present invention has been made in view of the above-described conventional problems, and its purpose is to keep the width at a predetermined value in advance in accordance with the arrangement pitch between rafters, and An object of the present invention is to provide a ventilation layer forming member excellent in attachment workability, which can prevent the sagging due to its own weight as much as possible.

  In order to achieve such an object, the invention shown in claim 1 is arranged such that both ends are fixed between adjacent hanging timbers, and a heat insulating material filled between the hanging timbers and a field provided above the hanging timbers. A ventilation layer forming member that is sandwiched between ground plates and forms a ventilation path along the extending direction of the hanging lumber at the installation site, and is formed of corrugated cardboard made of paper or resin. The layer forming member has an air passage forming portion that forms the air passage, and an engaging portion that is provided at both ends of the air passage forming portion and is fixedly locked to the hanging lumber. The portion includes a ventilation path that can be expanded and contracted in the arrangement pitch direction of the hanging wood, and a guide that guides the expansion and contraction of the ventilation path and maintains the width dimension in the arrangement pitch direction of the ventilation path forming portion at a predetermined value. A board is provided.

  Invention of Claim 2 is the ventilation layer forming member of Claim 1, Comprising: The said corrugated board is bent in the said ventilation path, The channel cross-sectional shape is formed in a triangle or a quadrangle | tetragon, The said guide plate is A through-hole that is provided at one end of the corrugated cardboard and is provided with one end fixed to the side of the engaging part and the other end extending a predetermined length toward the other engaging part, and forming the ventilation path It is characterized by being slidably inserted.

  The invention shown in claim 3 is the ventilation layer forming member according to claim 1, wherein the ventilation path is formed by bending the corrugated cardboard, and the passage cross-sectional shape is formed into a quadrangle having a flat portion on the upper side, A strip-shaped pressing plate is attached to the upper surface of the flat portion through a spacer, and a through hole is provided. The guide plate has one end fixed to one locking portion side and slides in the through hole. It is freely inserted and extends a predetermined length toward the other locking portion.

  The invention shown in claim 4 is installed with both ends fixed between adjacent hanging timbers, sandwiched between a heat insulating material filled between the hanging timbers and a field board provided on the upper side of the hanging timbers, A ventilation layer forming member for partitioning and forming a ventilation path along the extending direction of the hanging wood at the installation site, which is formed of corrugated cardboard made of paper or resin. An air passage forming portion that forms a passage; and an engaging portion that is provided at both ends of the air passage forming portion and is fixedly locked to the hanging wood. It comprises a first member and a second member that slidably engage with each other in the arrangement pitch direction and define a variable width air passage that expands and contracts in the arrangement pitch direction of the hanging wood. To do.

A fifth aspect of the present invention is the ventilation layer forming member according to the fourth aspect, wherein the first member has a rectangular cylindrical shape and forms a fixed width ventilation path in which the width in the arrangement pitch direction does not expand or contract. The second member has a U-shape, and upper and lower plate portions slidably cover the outer periphery of the upper wall surface and the lower wall surface of the fixed width air passage, A variable-width ventilation path whose width in the arrangement pitch direction can be expanded and contracted by the side wall surface, and the first member has a pair of an upper wall and a lower wall that define the fixed-width ventilation path. A joint hole is formed over a predetermined length along the arrangement pitch direction of the hanging wood,
The second member is provided with an engagement plate that passes through the upper and lower engagement holes forming a pair of the first member and connects the upper and lower plate portions of the second member.

  Invention of Claim 6 is a ventilation layer forming member of Claim 4, Comprising: The said 1st member and the said 2nd member make a rectangular cylinder shape, and the width | variety of the arrangement | positioning pitch direction does not expand / contract. Each of the first members is provided with a locking portion on one side, and a corrugated cardboard forming an upper wall of the fixed width ventilation passage is locked to the first member. A sliding plate extending a predetermined length on the opposite side of the portion and slidably engaging with the upper wall surface of the fixed width air passage of the second member, and the second member has a fixed width air flow A sliding plate in which a corrugated cardboard forming a lower wall of the passage extends a predetermined length on the side opposite to the engaging portion of the second member and slidably engages with the lower wall surface of the fixed width air passage of the first member And a corresponding sliding plate is slidable on the upper wall surface of the fixed width ventilation path of the second member and the lower wall surface of the fixed width ventilation path of the first member. Provided engaging plate which engages with the support and, respectively, variable width air passage is partitioned and formed between the the first member second member, characterized in that.

  According to the ventilation layer forming member according to the present invention, the width can be kept at a predetermined value in advance according to the arrangement pitch between the rafters depending on the specifications of the house to be built, and it hangs down by its own weight. This can be prevented as much as possible, and an air-permeable layer forming member excellent in attachment workability can be provided.

The ventilation layer forming member which concerns on 1st Embodiment of this invention is shown, (a) is a top view, (b) is a side view, (c) is a side view when expanded. The ventilation layer forming member which concerns on 2nd Embodiment of this invention is shown, (a) is a top view, (b) is a side view, (c) is a side view when expanded. FIGS. 3A and 3B show a third embodiment of a ventilation layer forming member according to the present invention, wherein FIG. 3A is a plan view, FIG. 3B is a side view, and FIG. 3C is a side view when the width of the ventilation layer forming member is reduced. . 4 shows a fourth embodiment of a ventilation layer forming member according to the present invention, wherein (a) is a plan view, (b) is a side view, and (c) is a bottom view showing a state in which the width is enlarged. ing. The state which shrunk | reduced the width | variety of the ventilation layer forming member of FIG. 4 is shown, (a) is a top view, (b) is a side view. It is a perspective view for demonstrating the installation state of a ventilation layer forming member, and is common in the past and this invention. It is a perspective view which shows the conventional ventilation layer ensuring member.

  Hereinafter, embodiments of a ventilation layer forming member according to the present invention will be described in detail with reference to the accompanying drawings. The air-permeable layer forming member according to the present invention is basically installed in such a manner that both side ends are fixed between the adjacent hanging lumbers 5 and 5 in the same manner as the conventional example shown in FIG. Between the heat insulating material 7 such as glass wool filled between 5 and 5 and the field board 3 provided on the upper side of the hanging wood 7, ventilation along the extending direction of the hanging wood 5 and 5 at the installation site It forms a path and is formed of cardboard made of paper or resin. Hereinafter, four types of embodiments will be described sequentially.

=== First Embodiment ===
1A and 1B show a first embodiment of a ventilation layer forming member according to the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a side view, and FIG. 1C is a side view when the width of the ventilation layer forming member is widened. FIG.

  As shown in the figure, a ventilation layer forming member 101 includes a ventilation path forming portion 105 that forms a ventilation path 103, and a latch that is provided at both ends of the ventilation path forming portion 105 and is fixedly locked to the hanging wood. It has stop part 107a, 107b. The ventilation path forming part 105 guides the expansion and contraction of the ventilation paths 103a and 103b in the direction of the arrangement pitch of the hanging wood, and the arrangement pitch of the ventilation path formation part 105. A guide plate 111 that holds the width dimension in the direction at an arbitrary predetermined value is provided.

  The air passages 103a and 103b of the first embodiment are formed so that one corrugated cardboard as a material is bent into a V shape or a U shape, and the passage cross-sectional shape becomes a triangle or a quadrangle. In the illustrated example, the corrugated cardboard is bent in a U shape to form two air passages 103a having a quadrangular cross section along both sides, and the corrugated cardboard is continuously bent in a V shape between the two air passages 103a. Thus, five air passages 103b having a triangular cross section are formed. The air passage 103a having a square cross section on both sides is provided with locking portions 107a and 107b formed by extending the side edges of the corrugated board in the opposite directions to each other, and the locking portions 107a and 107b are provided. Each is in contact with the hanging wood and is fixedly locked by staples, nails or the like.

  Here, the two air passages 103a arranged on both sides and having a quadrangular cross section are set so that the bottom walls 109a and 109b thereof have the same height. In addition, the air passage 103b having a triangular cross section has its upper apexes substantially coincident with the heights of the locking portions 107a and 107b, while the lower apexes of the air passage 103b have a quadrangular cross section. It protrudes below 109b.

  The guide plate 111 is provided with one end fixed to the one locking portion 107a side and the other end extending a predetermined length toward the other locking portion 107b, and forms a ventilation passage 103b having a triangular cross section. It is slidably inserted into a through hole 113 opened in the corrugated cardboard portion. In the guide plate 111 of the illustrated example, one end of the guide plate 111 is affixed to the inner side surface of the bottom wall 109a of the air passage 103a having a quadrangular cross section adjacent to one of the locking portions 107a, and the other end is a gas having a triangular cross section. The passage 103b is inserted into the through-hole 113 opened in the corrugated cardboard of the portion, and reaches the inner side surface of the bottom wall 109b of the air passage 103a having a quadrangular cross section adjacent to the other locking portion 107b. It slides on the inner surface.

  In addition, an engagement piece 115 that is formed in a T shape by cutting and can be bent downward is provided at the tip of the extended end of the guide plate 111. An engagement hole 117 that locks the engagement piece 115 is opened in the bottom wall 109b of the air passage 103a having a square cross section, and the engagement piece 115 is pushed downward and inserted into the engagement hole 117. It is designed to be engaged. Here, a plurality of engagement holes 117 are provided in accordance with the arrangement pitch dimensions of the hanging lumber conforming to various building specifications, and if a plurality of engagement holes 117 are provided in this way, By appropriately selecting the engagement holes 117 for engaging the engagement pieces 115 based on the arrangement pitch dimensions of the building specifications, the width of the ventilation layer forming member 101 as shown in FIGS. Can be easily set and held in advance in conformity with the arrangement pitch. Further, the guide plates 111 are similarly provided in pairs in parallel.

  Note that the engagement piece 115 and the engagement hole 117 are not necessarily provided. Even if these engagement pieces 115 and engagement holes 117 are not provided, the guide plate 111 is slidably inserted into the through holes 113 opened in the corrugated cardboard. If the value is adjusted, the width dimension is maintained by the friction between the guide plate 111 and the through hole 113.

  Further, since the folding paths of the corrugated cardboards of the ventilation paths 103a and 103b are provided in parallel, the ventilation path forming part 105 is easy to bend and hang down along its folding lines by its own weight, but the guide plate is orthogonal to the folding curves. Since 111 is provided, the guide plate 111 is supported while being improved in rigidity, and its drooping is prevented as much as possible.

  And when installing the said ventilation layer formation member 101 (refer figure), the width is adjusted beforehand according to the arrangement | positioning pitch of the hanging lumbers 5 and 5, and the latching | locking part 107a of the both sides of the width direction, 107b may be spanned between the adjacent hanging timbers 5 and 5, and the locking portions 107a and 107b may be fixedly locked to the hanging timbers 5 and 5 by staples, nails or the like. After dredging, the base plate 3 is fixed on the hanging lumbers 5 and 5, and the insulating material 7 is filled between the hanging lumbers 5 and 5 from below.

  Further, when the ventilation layer forming member 101 is installed after the base plate 3 is fixed on the hanging lumbers 5 and 5, the ventilation layer forming member in the state shown in FIG. 1 (b) or (c). 101 is inverted, and both engaging portions 107a and 107b are inserted between the hanging lugs 5 and 5 along the side surfaces of the hanging lumbers 5 and 5, and the ventilation layer forming member 101 is inserted. The locking portions 107a and 107b may be fixed and locked to the side surfaces of the hanging lumbers 5 and 5 with staples, nails or the like in a state where they are abutted against the lower surface of the base plate 3.

  That is, the ventilation layer forming member 101 can be easily adjusted in width, can easily correspond to the width dimensions according to various building specifications, and has excellent versatility. In addition, since the guide plate 111 increases its rigidity and prevents drooping as much as possible, the mounting operation can be easily performed even during installation.

  In the illustrated example of FIG. 1, the apex on the lower side of the air passage 103 b having a triangular cross section protrudes downward from the bottom walls 109 a and 109 b of the air passage 103 a having a quadrilateral cross section. You may make it form flat along the lower surface of the guide plate 111. FIG. In this case, the ventilation path defined above is a square cross section.

=== Second Embodiment ===
2A and 2B show a second embodiment of a ventilation layer forming member according to the present invention, wherein FIG. 2A is a plan view, FIG. 2B is a side view, and FIG. 2C is a side view when the width of the ventilation layer forming member is widened. FIG.

  As shown in the figure, the ventilation layer forming member 201 is provided with an air passage forming portion 205 for forming the air passages 203a and 203b, and is provided at both ends of the air passage forming portion 205, and is fixedly locked to the hanging wood. Locking portions 207a and 207b. The ventilation path forming portion 205 guides the expansion and contraction of the ventilation paths 203a and 203b whose width can be expanded and contracted in the arrangement pitch direction of the hanging wood, and the arrangement of the ventilation path forming section 205 is described above. A guide plate 211 that holds the width dimension in the installation pitch direction at an arbitrary predetermined value is provided.

  In the second embodiment, the air passages 203a and 203b are formed by bending a corrugated cardboard, which is a material, into a U-shape alternately at a predetermined height, so that the cross-sectional shape of the passage is flat up and down. It is formed to have a square shape. Also, the two air passages 203a formed on both sides are set larger than the five air passages 203b formed between them and are formed in the same shape and size. The air passages 203a on both sides are provided with locking portions 207a and 207b formed with the side edges of the corrugated board extending flat in opposite directions, and the locking portions 207a and 207b are respectively formed on the hanging wood. It comes into contact and is fixedly locked by staples, nails or the like.

  In addition, the five air passages 203b formed between the two air passages 203a on both sides are also set to have the same shape and the same size by corrugating the cardboard alternately in a U shape. A strip-shaped pressing plate 217 is attached to the upper surface of the upper wall 213 forming the upper flat portion of the air passage 203b via a spacer 215, and penetrates the upper surface of the upper wall 213. A hole 219 is provided.

  The guide plate 211 has one end fixed to one locking portion 207a side, is slidably inserted into the through hole 219, and extends a predetermined length toward the other locking portion 207b. Here, in the illustrated example, one end of the guide plate 211 is bent downward and adhered to the side wall 221 of the air passage 203a adjacent to one locking portion 207a, and the other end is locked to the other locking plate. A predetermined length extends toward the portion 207 b and is inserted through the through hole 219. A stopper 223 is attached to the upper surface of the extended end of the guide plate 211 to prevent the guide plate 211 from coming off from the through hole 219.

  In the illustrated example, the guide plate 211 and the through-hole 219 are provided in a pair with the same configuration, and one of the guide plates 211 has one end on the side of the one locking portion 207a as described above. One end of the other guide plate 211 is attached to the other locking portion 207b side and fixedly locked.

  And even if it exists in the ventilation layer forming member 201 of this 2nd Embodiment comprised as mentioned above, it is the same as that of the case of the above-mentioned 1st Embodiment. Since the guide plate 211 is slidably inserted into the through hole 219, the friction between the guide plate 211 and the through hole 219 can be adjusted by adjusting the width of the air passage forming portion 205 to an arbitrary predetermined value. The width dimension will be retained.

  Further, since the folding paths of the corrugated cardboards of the ventilation paths 203a and 203b are provided in parallel, the ventilation path forming portion 205 is easy to bend and hang down along the folding lines by its own weight, but the guide plate is orthogonal to the folding curves. Since 211 is provided, the air-permeable layer forming member 201 is supported by the guide plate 211 while increasing its rigidity, and its drooping is prevented as much as possible.

  Further, even in the ventilation layer forming member 201 of the second embodiment, it is installed and installed between the hanging lumbers in the same manner as the ventilation layer forming member of the first embodiment described above.

  That is, the ventilation layer forming member 201 can be easily adjusted in width, can easily correspond to the width dimensions in accordance with various building specifications, and has excellent versatility. In addition, since the guide plate 211 increases its rigidity and prevents drooping as much as possible, the mounting operation can be easily performed even during installation.

=== Third Embodiment ===
FIG. 3 shows a third embodiment of the ventilation layer forming member according to the present invention, wherein (a) is a plan view, (b) is a side view, and (c) is a side view when the width of the ventilation layer forming member is reduced. FIG.

  The ventilation layer forming member 301 of the third embodiment includes an air passage forming portion 305 that forms the air passages 303a and 303b, and an engagement that is provided at both ends of the air passage forming portion 305 and fixedly locked to the hanging wood. It has stop part 307a, 307b. Then, the air passage forming section 305 is slidably engaged with each other in the arrangement pitch direction of the hanging timber, and defines a variable width ventilation passage 306b that expands and contracts in the arrangement pitch direction of the hanging wood. It consists of a member 325 and a second member 327.

  The first member 325 is formed by bending a corrugated cardboard into a rectangular cylindrical shape to form a fixed width air passage 303a in which the width in the arrangement pitch direction does not expand or contract, and above the fixed width air passage 303a. The edge of the cardboard forming the wall 329a protrudes sideways by a predetermined length to integrally form the locking portion 307a.

  The second member 327 is formed by bending a corrugated cardboard into a U-shape, and the upper and lower plate portions 331a and 331b are the upper surface of the upper wall 329a and the lower wall 329b in the fixed width air passage 303a of the first member 325. Are provided so as to be slidably covered on the outer periphery of the lower surface. A variable width ventilation path 303b whose width can be expanded and contracted in the arrangement pitch direction is defined by the inner peripheral surface of the second member 327 and the side wall surface 329c of the fixed width ventilation path 303a of the first member 325. Yes. Further, a plate material 306 is attached to the outer surface of the side plate portion 331c formed in a U-shape over the entire length of the side plate portion 331c, and the upper side of the plate material 306 is bent sideways at the upper end of the side plate portion. A stop portion 307a is formed.

  The first member 325 is provided with two sets of rectangular engagement holes 333 that form a pair in the upper and lower sides of the upper wall 329a and the lower wall 329b that define and form the fixed width air passage 303a. Is formed in a long square shape extending over a predetermined length along the arrangement pitch direction of the hanging lumber.

  The second member 327 is provided with an engagement plate 335 that passes through the upper and lower engagement holes 333 formed in the first member 325 and connects the upper and lower plate portions 331a and 331b of the second member 327. It has been. The engagement plate 335 has a width corresponding to the width dimension of the engagement hole 333 in the short side direction. In the illustrated example, the engagement plate 335 has a lower plate portion 331b on the lower side of the second member 327 cut into a rectangular shape and inserted into the engagement hole 333, and the tip thereof is bent to form the second member. It is formed by adhering to the upper surface of the upper plate portion 331a of 327. Further, a groove 335a corresponding to the engagement hole 333 is formed in the upper and lower plate portions 331a and 331b.

  And even if it exists in the ventilation layer forming member 301 of this 3rd Embodiment comprised as mentioned above, it installs and installs between hanging wood similarly to the ventilation layer forming member 101 of the above-mentioned 1st Embodiment.

  That is, in this ventilation layer forming member 301, a variable width ventilation path 303b whose width dimension is enlarged or reduced is formed by a first member 325 and a second member 327 that slide relative to each other and move relatively close to and away from each other. Since the variable width passage 303b can be expanded and contracted, the width of the air-permeable layer forming member 301 can be adjusted to any desired setting value. Therefore, the width can be easily adjusted, and the width can be easily adjusted to various building specifications. It can be made compatible and has excellent versatility.

  In addition, if the mounting is set in advance to a desired value range, the first member 325 and the second member 327 can be easily maintained in their positional relationship by the friction of the sliding portion between them. Since there is no relative movement, it can be attached while maintaining the width dimension easily. Further, since the first member 325 has a rectangular cylindrical shape, its shape is high in rigidity, and the second member 327 covers and slides on the outer peripheral surfaces of the upper wall 329a and the lower wall 329b of the first member 325. Since the upper and lower plate portions 331a and 331b are connected to each other by the engagement plate 335, the second member 327 has high rigidity, and the strength of the entire ventilation layer forming member 301 is conventionally increased. It will be much better than the one and will not sag. Therefore, the installation work can be easily performed even at the time of installation.

=== Fourth Embodiment ===
4A and 4B show a fourth embodiment of a ventilation layer forming member according to the present invention, in which FIG. 4A is a plan view, FIG. 4B is a side view, and FIG. Indicates the state. FIG. 5 shows a state where the width of the ventilation layer forming member is reduced, (a) is a plan view, and (b) is a side view.

  The ventilation layer forming member 401 according to the fourth embodiment includes an air passage forming portion 405 that forms the air passages 403a and 403b, and a hook that is provided on both ends of the air passage forming portion 405 and is fixedly locked to the hanging wood. It has stop part 407a, 407b.

  The ventilation path forming portion 405 includes a first member 425 and a second member 427 that are slidably engaged with each other in the arrangement pitch direction of the hanging wood. The first member 425 and the second member 427 both have rectangular cylinder parts 425a and 427a of the same shape and size, and the rectangular cylinder parts 425a and 427a are arranged in the direction in which the hanging wood is arranged. A fixed-width ventilation path 403a that does not expand or contract in width is formed. The first member 425 and the second member 427 are provided with the locking portions 407a and 407b on one side portions that are separated from each other.

  Further, as shown in FIGS. 4A and 4B, the corrugated cardboard forming the upper wall 429a of the fixed width air passage 403a is connected to the first member 425 with the engaging portion 407a of the first member 425. Are extended by a predetermined length toward the opposite side, and a first sliding plate 431 is provided. The first sliding plate 431 has a pair of parallel engagement holes for slidably engaging with the upper surface of the upper wall 433a defining the fixed width air passage 403a of the second member 427. 435 is formed to extend over a predetermined length along the arrangement pitch direction of the hanging wood. Here, in the illustrated example, two sets of the pair of engagement holes 435 are provided in the first sliding plate 431.

  On the other hand, on the upper surface of the upper wall 433a of the fixed width air passage 403a in the second member 427, two engagement plates 437 are provided corresponding to the two pairs of engagement holes 435. The engagement plate 437 is adhered and fixed to the upper surface of the upper wall 433a of the fixed width air passage 403a of the second member 427 through a spacer 439 having the same thickness as the first sliding plate 431, and each of the spacers 439 is a pair. Are attached to positions corresponding to the engagement holes 435 and relatively move along the engagement holes 435 so that the engagement plates 437 move relative to each other while sliding on the upper surface of the first sliding plate 431. It has become.

  Similarly, on the second member 427, as shown in FIGS. 4B and 4C, the corrugated cardboard forming the lower wall 433b of the fixed width air passage 403a is engaged with the second member 427. A second sliding plate 441 is provided so as to extend a predetermined length toward the side opposite to the stop portion 407a. The second sliding plate 441 has a pair of parallel engaging holes 435 for slidably engaging with the lower surface of the lower wall defining the fixed width air passage 403a of the first member 425. An opening is formed to extend over a predetermined length along the arrangement pitch direction of the hanging lumber. Two pairs of the engagement holes 435 are also provided in the second sliding plate 441.

  On the other hand, on the lower surface of the lower wall 429b of the fixed width ventilation path 403a in the first member 425, two engagement plates 437 are provided correspondingly to the two pairs of engagement holes 435. The engagement plate 437 is adhered and fixed to the lower surface of the lower wall 429b of the fixed width air passage 403a of the first member 425 through a spacer 439 having the same thickness as the second sliding plate 441. Each spacer 439 is a pair of spacers 439. Affixed at a position corresponding to the engagement hole 435 and relatively moved along the engagement hole 435, the engagement plate 437 moves relative to the lower surface of the second sliding plate 441 while sliding. ing.

  That is, between the first member 425 and the second member 427, when both members slide and move relative to each other in the proximity or separation direction, the width is reduced or expanded in the arrangement pitch direction of the hanging lumber accordingly. The variable width ventilation path 403b is partitioned. Then, as shown in FIG. 5, when the first member 425 and the second member 427 are closest to each other and the rectangular cylindrical body portions 425a and 427a are brought into contact with each other, the variable width air passage is not formed. .

  And even if it exists in the ventilation layer forming member 401 of this 4th Embodiment comprised as mentioned above, it attaches and installs between hanging wood similarly to the ventilation layer forming member 101 of the above-mentioned 1st Embodiment.

  That is, even in this air-permeable layer forming member 401, the width dimension is expanded and contracted by the first member 425 and the second member 427 that slide relative to each other and move relatively close to each other, as in the third embodiment. Since the variable width ventilation passage 403b is formed and the width of the ventilation layer forming member 401 can be adjusted to a desired set value by expanding and contracting the variable width passage 403b, the width adjustment is easy, and various building specifications It can easily correspond to the width dimension according to the above, and is excellent in versatility.

  In addition, when the installation is performed, if the predetermined width is adjusted in advance, the first member 425 and the second member 427 are held by the friction of the sliding portion between them, and can be simply moved relative to each other. Since it does not come, it can be attached while maintaining the width dimension easily.

  Furthermore, since the first member 425 and the second member 427 are both rectangular cylinders, the shape thereof is high in rigidity, and the first sliding plate 431 and the second sliding plate 441 are used on both the upper and lower sides. Since they are slidably engaged with each other, the overall strength of the air-permeable layer forming member 301 is much superior to that of the conventional one, and no drooping occurs. Therefore, the installation work can be easily performed even at the time of installation.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, this invention is not limited to this embodiment, The deformation | transformation as shown below is possible in the range which does not deviate from the summary.

  That is, for example, each of the air-permeable layer forming members 101, 201, 301, 401 may be bonded to the surface of the corrugated cardboard material with an aluminum foil or an aluminum vapor-deposited sheet to enhance its heat insulation. In addition, when exposed to a fire flame and heated, the coating foams and swells to become a carbonized layer, and the foamed fireproof coating agent that can protect the substrate from fire due to the thermal insulation of this carbonized layer, You may make it apply | coat to the surface of the corrugated-cardboard material of the ventilation layer forming member 101,201,301,401.

1 roof
3 Field board
5 hanging wood
7 Insulation
101, 201, 301, 401 Breathing layer forming member
103a, 103b, 203a, 203b, 303a, 303b, 403a, 403b Air passage
105, 205, 305, 405 Vent passage forming part
107a, 107b, 207a, 207b, 307a, 307b, 407a, 407b Locking part
109a, 109b Bottom wall
111, 211 Information board
113, 219 Through hole
213 Upper wall (flat part)
215, 439 Spacer
217 holding plate
325, 425 1st member
327, 427 Second member
303a, 403a Fixed width air passage
303b, 403b Variable width air passage
329a, 429a Upper wall
329b, 429b Lower wall
333, 435 engagement hole
335, 437 Engagement plate
431, 441 Sliding plate

Claims (6)

Both ends are fixed between adjacent hanging timbers, and are sandwiched between a heat insulating material filled between the hanging timbers and a field plate provided on the upper side of the hanging timbers. A ventilation layer forming member that partitions the ventilation path along the exit direction, and is formed of corrugated cardboard made of paper or resin,
The ventilation layer forming member has a ventilation path forming part that forms the ventilation path, and a locking part that is provided on both side ends of the ventilation path forming part and is fixedly locked to the hanging wood,
The ventilation path forming portion includes a ventilation path that can be expanded and contracted in the arrangement pitch direction of the hanging timber, and a width dimension of the ventilation path formation section in the arrangement pitch direction by guiding expansion and contraction of the ventilation path. Is provided with a guide plate to hold,
An air-permeable layer forming member. The ventilation layer forming member according to claim 1,
The vent path is formed by bending the corrugated cardboard, and the cross-sectional shape of the path is formed in a triangle or a quadrangle,
The guide plate is provided with one end fixed to one locking portion side and the other end extending a predetermined length toward the other locking portion to open the corrugated cardboard forming the ventilation path. Slidably inserted into the through-hole,
An air-permeable layer forming member. The ventilation layer forming member according to claim 1,
The vent path is formed by bending the corrugated cardboard, and the passage cross-sectional shape is a quadrangle having a flat portion on the upper side,
A strip-shaped pressing plate is attached to the upper surface of the flat portion via a spacer, and a through hole is provided.
The guide plate has one end fixed to one locking portion side, is slidably inserted into the through hole, and extends a predetermined length toward the other locking portion.
An air-permeable layer forming member. Both ends are fixed between adjacent hanging timbers, and are sandwiched between a heat insulating material filled between the hanging timbers and a field plate provided on the upper side of the hanging timbers. A ventilation layer forming member that partitions the ventilation path along the exit direction, and is formed of corrugated cardboard made of paper or resin,
The ventilation layer forming member has a ventilation path forming part that forms the ventilation path, and a locking part that is provided on both side ends of the ventilation path forming part and is fixedly locked to the hanging wood,
The air passage forming portion is slidably engaged with each other in the arrangement pitch direction of the hanging lumber, and a first member that partitions and forms a variable width air passage that expands and contracts in the arrangement pitch direction of the hanging lumber. Consisting of a second member,
An air-permeable layer forming member. The ventilation layer forming member according to claim 4,
The first member has a rectangular tubular shape and forms a fixed width air passage in which the width in the arrangement pitch direction does not expand and contract,
The second member has a U-shape, and the upper and lower plate portions slidably cover the outer periphery of the upper wall surface and the lower wall surface of the fixed width air passage, and by the side wall surface of the fixed width air passage Forming a variable-width ventilation path whose width in the arrangement pitch direction can be expanded and contracted;
In the first member, an engagement hole that is paired with an upper wall and a lower wall that define the fixed width ventilation path is formed over a predetermined length along the arrangement pitch direction of the hanging wood,
The second member is provided with an engagement plate that passes through the upper and lower engagement holes forming a pair of the first member and connects the upper and lower plate portions of the second member.
An air-permeable layer forming member. The ventilation layer forming member according to claim 4,
Each of the first member and the second member has a rectangular tube shape and has a fixed width air passage in which the width in the pitch direction is not enlarged or reduced, and the locking portion is provided on one side of each. ,
The first member has a corrugated cardboard forming an upper wall of the fixed width air passage extending a predetermined length on the side opposite to the engaging portion of the first member, and an upper wall surface of the fixed width air passage of the second member. And a corrugated cardboard forming a lower wall of the fixed width air passage on the second member on a side opposite to the engaging portion of the second member. A sliding plate is provided that extends long and slidably engages with the lower wall surface of the fixed width air passage of the first member;
On the upper wall surface of the fixed width ventilation path of the second member and the lower wall surface of the fixed width ventilation path of the first member, there are respectively provided engagement plates that slidably support and engage the corresponding sliding plates. And
A variable width ventilation path is defined between the first member and the second member.
An air-permeable layer forming member.

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