Inner-wall panel and inner-wall insulation structure using inner-wall panel

Abstract

[Problem] To provide: an inner-wall panel using a flange-equipped insulation material, which does not cause breakage or the like in a film of a flange section and does not reduce insulation performanc

Description

[0001 ] The present invention relates to an inner-wall panel used for an inner wall of a building such as a residence, and using an eared thermal insulation material, and an inner-wall thermal insulation structure using the inner-wall panel. BACKGROUND ART

[0002] Conventionally, when producing an inner-wall panel provided with a thermal insulation material, the thermal insulation material has been secured to an inner-wall frame that is formed of wood or iron. A securing method has included pressing down the swelling thermal insulation material by a staple, a screw, or the like to be secured to the inner wall. Therefore, a periphery portion of the thermal insulation material secured by the screw or the like has been compressed, thereby having a thickness thinner than a nominal thickness. Accordingly, a reduction in thickness of the thermal insulation material has leaded to a decrease in thermal insulation performance.

[0003] In this respect, Patent Literature 1 has described an eared thermal insulation material that uses a bag-shaped moistureproof film covering the entirety of the insulation material, and an ear part that is a moistureproof film extended to four sides in an in-plane direction. The insulation material is inserted between a pillar and a stud adjacent to one another, and the ear part of the moistureproof film extending from a peripheral edge of the thermal insulation material to the four sides in the in-plane direction is secured to the pillar or the stud by using an appropriate measure such as a staple, a nail, or the like, and thus the eared thermal insulation material is secured at the ear part, which does not include the thermal insulation material. Therefore, the eared thermal insulation material does not have a reduced thickness compared with a nominal thickness, and thermal insulation performance does not decrease. CITATION LIST - PATENT LITERATURE

[0004] Patent Literature 1: JP2001-271437A SUMMARY OF THE INVENTION TECHNICAL PROBLEMS

[0005] However, in the securing method in Patent Literature 1, thermal insulation performance is not reduced since securing is not performed near the center of the thermal insulation material, and thus the thermal insulation material does not become thinner than the nominal thickness, while the ear part, which is a thin film, at the peripheral edge of the thermal insulation material with respect to the thermal insulation material having a comparatively large area is secured to the inner-wall frame in "dot" form such as with a staple. This has caused tear of the ear part around the secured portion, for example, by the eared thermal insulation material being pulled during work. Moreover, since the thermal insulation material is not provided to the pillar or stud position, a thermal insulation line has been intermitted, and thermal insulation performance has decreased.

[0006] Therefore, in order to solve the above problems, an object of the present invention is to provide an inner-wall panel using an eared thermal insulation material that does not cause tear or the like at a film of an ear part, and an inner-wall thermal insulation structure using the inner-wall panel without reducing thermal insulation performance. SOLUTIONS TO PROBLEMS

[0007] In order to solve the above problems, an inner-wall panel includes a rectangular inner-wall frame that is an inner-wall base of a building; an eared thermal insulation material adjacently secured to the inner-wall frame; and a U-shaped clip piece having elasticity. The eared thermal insulation material includes a thermal insulation material of which a periphery is covered by a film; and an ear part extending from a peripheral edge of the film in an in-plane direction of the thermal insulation material. The clip piece pinches the inner-wall frame and the ear part to secure the eared thermal insulation material to the inner-wall frame.

[0008] In the inner-wall panel, an inner surface of the clip piece has an anti-slip part.

[0009] In the inner-wall panel, the anti-slip part has a sawtooth shape.

[0010] In the inner-wall panel, the clip piece is incombustible, the inner-wall frame includes a pair of left and right vertical frame members and a pair of top and bottom horizontal frame members, the clip piece includes a vertically-elongated clip piece to be secured to the vertical frame member having a length approximately the same as a length of the vertical frame member, the clip piece includes a horizontally-elongated clip piece to be secured to the horizontal frame member having a length approximately the same as a length of the horizontal frame member, and the vertically-elongated clip piece and the horizontally-elongated clip piece are coupled to one another.

[0011] In an inner-wall thermal insulation structure using the inner-wall panel according to the above features, the inner-wall panel includes a plurality of inner-wall panels disposed continuously, a joint thermal insulation material filling a vertical joint formed at an exterior side of the clip piece and between the eared thermal insulation materials of the respective inner-wall panels adjacent to one another is disposed, and the eared thermal insulation materials and the joint thermal insulation material are alternately disposed in a continuous manner in a horizontal direction. ADVANTAGEOUS EFFECTS OF INVENTION

[0012] According to the inner-wall panel in accordance with the present invention, the U-shaped clip piece having elasticity pinches the ear part and the inner-wall frame of the eared thermal insulation material to secure the eared thermal insulation material to the inner-wall frame. Therefore, securing is performed in line form, and the ear part does not tear. Removal and resecuring are also easy.

[0013] Moreover, since the anti-slip part is provided to the inner surface of the clip piece, the clip piece does not fall off from the inner-wall frame.

[0014] Moreover, since the anti-slip part has a sawtooth shape, the sawtooth bites into the film and the inner-wall frame, and thereby the clip piece does not fall off from the inner-wall frame.

[0015] Moreover, the clip piece is incombustible. In the inner-wall frame formed by the pair of left and right vertical frame members and the pair of top and bottom horizontal frame members, the length of the vertically-elongated clip piece among the clip pieces that is secured to the vertical frame member is approximately the same as the length of the vertical frame member, and the length of the horizontally-elongated clip piece among the clip pieces that is secured to the horizontal frame member is approximately the same as the length of the horizontal frame member. The vertical clip piece and the horizontal clip piece are coupled to one another. Therefore, even when the inner-wall frame burns, the inner wall does not collapse, and the clip piece can stand alone as the inner-wall frame so as not to collapse.

[0016] Moreover, the inner-wall panels are disposed continuously along a framework supporting the building, and the joint thermal insulation material that fills the vertical joint formed between the eared thermal insulation materials of the respective inner-wall panels adjacent to one another and at a gap between the framework and the exterior-side surface of the clip piece is disposed. The eared thermal insulation materials and the joint thermal insulation material are alternately disposed in a continuous manner in a horizontal direction. Accordingly, formation of a thermal bridge is prevented, so that heat does not free from inside to outside of the building, and thereby it is possible to improve thermal insulation performance and prevent condensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Fig. 1a is a schematic plan view illustrating an inner-wall panel according to a first embodiment of the present invention. Fig. 1b is a schematic assembly view of the interior wall panel according to the first embodiment of the present invention. Fig. 2 is a schematic horizontal sectional view illustrating an inner-wall thermal insulation structure using the inner-wall panel according to the present invention. Fig. 3a is a schematic perspective view illustrating the inner-wall panel according to the first embodiment of the present invention. Fig. 3b is a schematic perspective view illustrating the inner-wall panel in Fig.3a provided with horizontal crossbars. Fig. 4a is a schematic perspective view of a clip piece. Fig. 4b is a schematic perspective view illustrating a clip piece provided with a sawtooth inside the clip piece as an anti-slip part. Fig. 5a is a schematic perspective view illustrating a clip piece provided with a hemmed part inside the clip piece as the anti-slip part. Fig. 5b is a schematic perspective view illustrating a clip piece provided with a claw part inside the clip piece as the anti-slip part. Fig. 6a is a schematic perspective view illustrating a clip piece provided with a dot part inside the clip piece as the anti-slip part. Fig. 6b is a schematic perspective view illustrating a clip piece provided with a sheet having large frictional force inside the clip piece as the anti-slip part. Fig. 7 is a schematic assembly view of an inner-wall panel according to a second embodiment of the present invention. Fig. 8a is a schematic perspective view illustrating the inner-wall panel according to the second embodiment of the present invention. Fig. 8b is a schematic perspective view illustrating the inner-wall panel in Fig.8a provided with horizontal crossbars. DESCRIPTION OF EMBODIMENTS

[0018] An inner-wall panel 100, 200 according to the present invention is used for an inner wall of a building and is a building material having thermal insulation performance. As illustrated in Fig. 1, the inner-wall panel 100, 200 mainly has a rectangular inner-wall frame 1, an eared thermal insulation material 2 disposed on the inner-wall frame 1, and a U-shaped clip piece 3 having elasticity. Herein, a back surface of the eared thermal insulation material 2 or the inner-wall frame 1 refers to a surface at an exterior side when the inner-wall panel 100, 200 is installed on an inner-wall part, and a front surface of the eared thermal insulation material 2 or the inner-wall frame 1 refers to a surface at an interior side when the inner-wall panel 100, 200 is installed on the inner-wall part. As illustrated in Fig. 2, the eared thermal insulation material 2 is disposed at the exterior side, which is the back surface of the inner-wall frame 1 in a protruding manner.

[0019] [First Embodiment] The inner-wall panel 100 is assembled on site by the eared thermal insulation material 2 being placed on the inner-wall frame 1 and then the crip piece 3 being attached thereto. As illustrated in Fig. 2, after the inner-wall panel 100 is assembled, it is attached to a framework C of the building.

[0020] (Inner-Wall Frame 1) The inner-wall frame 1 is used as an inner-wall base of the building. The inner-wall frame 1 is mainly formed of wood, and has a framework in which a pair of left and right vertical frame members 1a are fixed to a pair of top and bottom horizontal frame members 1b with a well-known fixing means such as a nail or an adhesive, to have a rectangular shape.

[0021] (Eared Thermal Insulation Material 2) The eared thermal insulation material 2 includes a thermal insulation material 2b of which a periphery is covered by a film 2a, and an ear part 2c extending from a peripheral edge of a bottom surface of the film 2a in an in-plane direction of the thermal insulation material 2b. As illustrated in Figs. 1A and 1B, the clip piece 3 pinches the inner-wall frame 1 and the ear part 2c to secure the ear part 2c to the inner-wall frame 1. Therefore, the eared thermal insulation material 2 is secured to the inner-wall frame 1.

[0022] The thermal insulation material 2b is a fibrous material, for example glass wool, rock wool, or the like and is easily deformable by receiving pressing force. The thermal insulation material 2b is cut in advance to have an appropriate size corresponding to the size of the inner-wall frame 1. The thermal insulation material 2b is packed in the film 2a having a bag shape for a moistureproof purpose, to facilitate processing, and not to untie the processed fiber. The thermal insulation material 2b has approximately the same size as the size inside the inner-wall frame 1 and falls between the pair of left and right vertical frame members 1a. The thermal insulation material 2b preferably has the thickness larger than the thickness of the inner-wall frame 1, and the thermal insulation material 2b protrudes at the back-surface side, which is the exterior side, of the inner-wall frame 1. The periphery of the thermal insulation material 2b is covered by the bag-shaped film 2a, has waterproof property, is set to have the thickness which satisfies a certain level of tear strength, and is made of polyethylene material as appropriate. Covering the thermal insulation material 2b by the film 2a suppresses occurrence of internal condensation due to entering of moisture into the wall and into the thermal insulation material, thus preventing to get moldy.

[0023] In this embodiment, the ear part 2c extends from the peripheral edge of the bagshaped film 2a in the in-plane direction outside of the thermal insulation material 2b. If it is only for the purpose of securing the eared thermal insulation material 2 to the inner-wall frame 1, the ear part 2c does not necessarily extend to four sides in the in-plane direction, and may extend only in the left and right directions to be secured to the left and right vertical frame members 1a.

[0024] (Clip Piece 3) The clip piece 3 has a U-shape, is made of metal, synthetic resin, or the like, and has elasticity. The clip piece 3 has pinching plate parts 3a including two parallel plates, and a depth plate part 3b coupling end portions of the respective two pinching plate parts 3a with one another. The pinching plate parts 3a have an inner-wall-frame pressing plate part 3a1 that presses the interior side of the inner-wall frame 1, and an ear-part pressing plate part 3a2 that presses the exterior side of the ear part 2c.

[0025] The depth plate part 3b is formed to have the same length as the length of a side surface of the inner-wall frame 1, or slightly shorter than the length of the side surface of the inner-wall frame 1. Therefore, by the pinching plate parts 3a being expanded to have the ear part 2c and the inner-wall frame 1 therebetween, elastic force acts on the pinching plate parts 3a to pinch therebetween the ear part 2c and the inner-wall frame 1. Thereby, the eared thermal insulation material 2 can be secured to the inner-wall frame 1.

[0026] As illustrated in Fig. 3(a) or 4(a), the clip piece 3 includes a plurality of clip pieces 3 used for a single vertical frame member 1a or a single horizontal frame member 1b. The depth plate part 3b of the clip piece 3 has the length of about 0.1 m-1 m. The ear part 2c may be or may not be secured to the pair of top and bottom horizontal frame members 1b as long as the ear part 2c is secured to the pair of left and right vertical frame members 1a by the clip pieces 3.

[0027] As illustrated in Figs. 4(b)-6, an anti-slip part 4 is provided to an inner surface of the clip piece 3. Fig. 4(b) illustrates a sawtooth 4a in a mountain shape as the anti-slip part 4. By the sawtooth 4a in a mountain shape being provided at a tip end of the pinching plate part 3a, the sawtooth 4a penetrates the ear part 2c to bite into the inner-wall frame 1, thus preventing the clip piece 3 from falling off from the inner-wall frame 1 during construction work of the inner-wall panel 100.

[0028] Moreover, the sawtooth 4a at an edge different from the tip end of the ear-part pressing plate part 3a2 is formed such that one oblique side of the mountain shape has a longer length, thus functioning as a barb. Therefore, the clip piece 3 is further less likely to fall off. The sawtooth 4a may be provided to a peripheral edge of the pinching plate 3a or to the entire surface of the pinching plate part 3a, alternatively to being provided only to the tip end of the pinching plate part 3a. Moreover, the sawtooth 4a is not limited to have a mountain shape but may have a trapezoidal shape, and the shape of the sawtooth 4a is not limited unless the clip piece 3 falls off.

[0029] Moreover, as illustrated in Fig. 5(a), a hemmed part 4b may be provided as the antislip part 4 to the end portion of the ear-part pressing plate part 3a2 of the clip piece 3. The hemmed part 4b hooks the ear part 2c and functions as a barb, and thereby biting into the ear part 2c and the inner-wall frame 1 to prevent the clip piece 3 from falling off. The hemmed part 4b may be provided at a plurality of positions, or a single hemmed part 4b may be provided to the overall end part.

[0030] Alternatively, as illustrated in Fig. 5(b), a claw part 4c may be provided as the anti-slip part 4 at the inner side of the clip piece 3 from a surface of the ear-part pressing plate part 3a2 of the clip piece 3 so as to hook the ear part 2c. The claw part 4c functions as a barb, and thereby biting into the ear part 2c and the inner-wall frame 1 to prevent the clip piece 3 from falling off. The claw part 4c is provided on the ear-part pressing plate part 3a2 at a constant interval.

[0031] Alternatively, as illustrated in Fig. 6(a), the eared insulation material 2 and the inner-wall frame 1 are secured to the clip piece 3 and then pressed down from over the ear-part pressing plate part 3a2 in dot form, and thereby a pressed dot part 4d presses down, as the anti-slip part 4, the ear part 2c against the inner-wall frame 1 to prevent the clip piece 3 from falling off.

[0032] Alternatively, as illustrated in Fig. 6(b), a sheet 4e having large frictional force with respect to the ear part 2c may be provided as the anti-slip part 4 to the inner surface of the ear-part pressing plate part 3a2 to increase frictional force. The sheet 4e is, for example, a rubber sheet or a concave / convex-shaped sheet. Instead of providing the sheet 4e, the inner surface of the ear-part pressing plate part 3a2 may be provided with a small protrusion or the like to be roughened.

[0033] As illustrated in Figs. 4(b)-6, the anti-slip part 4 is provided to the inner surface of the ear-part pressing plate part 3a2. However, the anti-slip part 4 may also be provided to the inner surfaces of the inner-wall-frame pressing plate part 3a2 and the depth plate part 3b at the same time as necessary, and as long as the anti-slip part 4 is provided to the inner surface of the ear-part pressing plate part 3a2, other locations where the anti-slip part 4 is provided are not particularly limited.

[0034] The inner-wall panel 100 is not secured to the inner-wall frame 1 from over the thermal insulation material 2b, but is secured to the inner-wall frame 1 at the ear part 2c, which does not include the thermal insulation material. Therefore, the thickness of the thermal insulation material does not become thinner than the nominal thickness. The ear part 2c is secured to the inner-wall frame 1 using the clip piece 3 having a certain constant length, and thereby the ear part 2c can be secured to the inner-wall frame 1 without being penetrated and be secured not in "dot" form but in "line" form. Therefore, even when the eared thermal insulation material 2 is pulled or moved, force does not concentrate on a single point, which brings an effect that the ear part 2c becomes less likely to be torn.

[0035] Moreover, for example, when the eared thermal insulation material 2 is secured to the inner-wall frame 1 by a staple at a wrong position, or when the film 2a tears, it takes time to remove the staple and may undesirably damage the ear part 2c. However, when the clip piece 3 is used, removal thereof is easier than the case of using the staple and the like and does not require time and effort, and a hole is not made in the ear part 2c. Therefore, the ear part 2c can be again secured without getting damaged.

[0036] Moreover, as illustrated in Fig. 3(b), a plurality of horizontal crossbars 5 coupling the pair of left and right vertical frame members 1a with one another may be used at a constant pitch. By the horizontal crossbars 5 being provided, the left and right vertical frame members 1a are supported, and resistance to external force and a load such as an earthquake can be achieved. Thereby, an incombustible inner-wall frame 7 is prevented from being deformed or distorted, and can have further improved stability and strength. In this embodiment, the horizontal crossbar 5 is provided to the vertical frame member 1a at a position couped to the clip piece 3, and is secured to the clip piece 3 by welding or the like.

[0037] [Second Embodiment] (Inner-Wall Panel 200) The inner-wall panel 200 according to the second embodiment has, similarly to the inner-wall panel 100, the inner-wall frame 1, the eared thermal insulation material 2, and a vertically-elongated clip piece 3c and a horizontally-elongated clip piece 3d each of which is the clip piece 3 with a longer length.

[0038] (Vertically-Elongated Clip Piece 3c and Horizontally-Elongated Clip Piece 3d) As illustrated in Figs. 7 and 8(a), the vertically-elongated clip piece 3c secures the vertical frame member 1a and the ear part 2c extending in the left-and-right direction, and is formed to be approximately the same length as the vertical frame member 1a. The horizontally-elongated clip piece 3d secures the horizontal frame member 1b and the ear part 2c extending in the up-and-down direction, and is formed to be approximately the same length as the horizontal frame member 1b. The vertically-elongated clip piece 3c and the horizontally-elongated clip piece 3d are formed of an incombustible material such as metal or alloy. The vertically-elongated clip piece 3c and the horizontally-elongated clip piece 3d are coupled to one another by welding or the like after being attached to the vertical frame member 1a and the horizontal frame member 1b, thereby forming the incombustible inner-wall frame 7.

[0039] The incombustible inner-wall frame 7 does not burn and thus stands alone even when fire occurs and the vertical frame member 1a and / or the horizontal frame member 1b burn. Therefore, the inner wall does not collapse, and the building can have improved durability.

[0040] Moreover, as illustrated in Fig. 8(b), the pair of left and right vertically-elongated clip pieces 3c may be provided with a plurality of horizontal crossbars 5 coupling the vertically-elongated clip pieces 3c with one another at a constant pitch. The horizontal cross bar 5 is formed of an incombustible material such as metal, and is coupled to the vertically-elongated clip pieces 3c by welding or the like. By the horizontal crossbars 5 being provided, the vertically-elongated clip pieces 3c and the left and right vertical frame members 1a are supported.

[0041] By the horizontal crossbars 5 being provided, resistance to external force and a load such as an earthquake after burning of the vertical frame member 1a and the horizontal frame member 1b in case of fire can be achieved. Thereby, the incombustible inner-wall frame 7 is prevented from being deformed or distorted, and can have further improved stability and strength.

[0042] Moreover, the vertically-elongated clip piece 3c and the horizontally-elongated clip piece 3d may include, at the inner side thereof, the anti-slip part 4 such as the sawtooth 4a, the hemmed part 4b, the claw part 4c, the dot part 4d, and the sheet 4e, similarly to the clip piece 3 of the inner-wall panel 100 according to the first embodiment.

[0043] [Inner-Wall Thermal Insulation Structure 300] The inner-wall thermal insulation structure 300 using the inner-wall panel 100 is described with reference to Fig. 2. The inner-wall thermal insulation structure 300 has, mainly in order from the interior side, a cloth K such as a wallpaper, a gypsum board IP, the inner-wall panel 100, a joint thermal insulation material 6, and the framework C. An outer wall panel OP is provided at the exterior side of the framework C.

[0044] A plurality of inner-wall panels 100 are disposed continuously along the framework C supporting the building. A vertical joint is formed between the eared thermal insulation materials 2 of the respective inner-wall panels 100 adjacent to one another. The joint thermal insulation material 6 is disposed at this vertical joint and at a gap between the framework C and the exterior-side surface of the clip piece 3. The eared thermal insulation materials 2 and the joint thermal insulation material 6 are disposed alternately in a continuous manner in the horizontal direction. By the eared thermal insulation materials 2 and the joint thermal insulation material 6 being disposed alternately in a continuous manner in the horizontal direction, a thermal insulation material line in the horizontal direction is formed without intermittence.

[0045] Intervention of the joint thermal insulation material 6 to form the thermal insulation material line in the horizontal direction without intermittence can remove a thermal bridge. Removal of the thermal bridge suppresses thermal conduction from the vertical frame member 1a to the framework C, and thermal insulation performance from inside to outside of the building is not reduced. Moreover, condensation inside the inner wall can be prevented.

[0046] A metal fitting S is provided to a contact portion of the frameworks C adjacent to one another in such a manner as to be in a row with respect to the vertical direction. The number of metal fittings S is preferably at least two or more. However, the number of metal fittings S to be provided may be set in consideration of strength of the inner-wall frame 1 and the like, and is not limited to four. Moreover, Fig. 2 shows the metal fitting S attached only to one framework C for convenience of description. However, in practice, the metal fitting S is attached to every framework C provided to the thermal insulation inner-wall frame 1.

[0047] As illustrated in Fig. 2, the clip pieces 3 are provided to the inner-wall frames 1 in such a manner that the depth plate parts 3b of the respective clip pieces 3 are opposed to one another. Since the depth plate parts 3b face one another, the clip pieces 3 do not fall off, and can stably secure the eared thermal insulation materials 2 to the inner-wall frames 1.

[0048] Moreover, the inner-wall thermal insulation structure 300 can also use the inner-wall panel 200 according to the second embodiment. In the case of using the inner-wall panel 200, the incombustible inner-wall frame 7 is employed, and therefore, it is unnecessary to additionally provide an incombustible inner-wall frame at the interior side of the inner-wall frame 1, which prevents a room space from being reduced.

[0049] (First Feature) An inner-wall panel includes a rectangular inner-wall frame that is an inner-wall base of a building; an eared thermal insulation material adjacently secured to the inner-wall frame; and a U-shaped clip piece having elasticity. The eared thermal insulation material includes a thermal insulation material of which a periphery is covered by a film; and an ear part extending from a peripheral edge of the film in an in-plane direction of the thermal insulation material. The clip piece pinches the inner-wall frame and the ear part to secure the eared thermal insulation material to the inner-wall frame.

[0050] According to the above feature, the U-shaped clip piece having elasticity pinches the ear part and the inner-wall frame of the eared thermal insulation material to secure the eared thermal insulation material to the inner-wall frame. Therefore, securing is performed in line form, and the ear part does not tear. Removal and resecuring are also easy.

[0051] (Second Feature) In the inner-wall panel according to the first feature, an inner surface of the clip piece has an anti-slip part.

[0052] According to the above feature, since the anti-slip part is provided to the inner surface of the clip piece, the clip piece does not fall off from the inner-wall frame.

[0053] (Third Feature) In the inner-wall panel according to the first feature, the anti-slip part has a sawtooth shape.

[0054] According to the above feature, since the anti-slip part has a sawtooth shape, the sawtooth bites into the film and the inner-wall frame, and thereby the clip piece does not fall off from the inner-wall frame.

[0055] (Fourth Feature) In the inner-wall panel according to any one of features 1 to 3, the clip piece is incombustible, the inner-wall frame includes a pair of left and right vertical frame members and a pair of top and bottom horizontal frame members, the clip piece includes a vertically- elongated clip piece to be secured to the vertical frame member having a length approximately the same as a length of the vertical frame member, the clip piece includes a horizontally-elongated clip piece to be secured to the horizontal frame member having a length approximately the same as a length of the horizontal frame member, and the vertically-elongated clip piece and the horizontally-elongated clip piece are coupled to one another.

[0056] According to the above feature, the clip piece is incombustible. In the inner-wall frame formed by the pair of left and right vertical frame members and the pair of top and bottom horizontal frame members, the length of the vertically-elongated clip piece among the clip pieces that is secured to the vertical frame member is approximately the same as the length of the vertical frame member, and the length of the horizontally-elongated clip piece among the clip pieces that is secured to the horizontal frame member is approximately the same as the length of the horizontal frame member. The vertical clip piece and the horizontal clip piece are coupled to one another. Therefore, even when the inner-wall frame burns, the inner wall does not collapse, and the clip piece can stand alone as the inner-wall frame so as not to collapse.

[0057] (Fifth Feature) In an inner-wall thermal insulation structure using the inner-wall panel according to any one of features 1 to 4, the inner-wall panel includes a plurality of inner-wall panels disposed continuously, a joint thermal insulation material filling a vertical joint formed at an exterior side of the clip piece and between the eared thermal insulation materials of the respective inner-wall panels adjacent to one another is disposed, and the eared thermal insulation materials and the joint thermal insulation material are alternately disposed in a continuous manner in a horizontal direction.

[0058] According to the above feature, the inner-wall panels are disposed continuously along a framework supporting the building, and the joint thermal insulation material that fills the vertical joint formed between the eared thermal insulation materials of the respective inner-wall panels adjacent to one another and at a gap between the framework and the exterior-side surface of the clip piece is disposed. The eared thermal insulation materials and the joint thermal insulation material are alternately disposed in a continuous manner in a horizontal direction. Accordingly, formation of a thermal bridge is prevented, so that heat does not free from inside to outside of the building, and thereby it is possible to improve thermal insulation performance and prevent condensation.

[0059] - DESCRIPTION OF REFERENCE SIGNS 100 inner-wall panel 200 inner-wall panel 300 inner-wall thermal insulation structure 1 inner-wall frame 1a vertical frame member 1b horizontal frame member 2 eared thermal insulation material 2a film 2b thermal insulation material 2c ear part 3 clip piece 3a pinching plate part 3a1 inner-wall-frame pressing plate part 3a2 ear-part pressing plate part 3b depth plate part 3c vertically-elongated grip piece 3d horizontally-elongated grip piece 4 anti-slip part 4a sawtooth 4b hemmed part 4c claw part 4d dot part 4e sheet 5 horizontal crossbar 6 joint thermal insulation material 7 incombustible inner-wall frame C framework K cloth IP gypsum board OP outer wall panel S metal fitting

Claims

1. An inner-wall panel comprising:a rectangular inner-wall frame that is an inner-wall base of a building;an eared thermal insulation material adjacently secured to the inner-wall frame; anda U-shaped clip piece having elasticity, whereinthe eared thermal insulation material comprises:a thermal insulation material of which a periphery is covered by a film; andan ear part extending from a peripheral edge of the film in an in-plane direction of the thermal insulation material, andthe clip piece pinches the inner-wall frame and the ear part to secure the eared thermal insulation material to the inner-wall frame.

2. The inner-wall panel according to claim 1, wherein an inner surface of the clip piece has an anti-slip part.

3. The inner-wall panel according to claim 2, wherein the anti-slip part has a sawtooth shape.

4. The inner-wall panel according to any one of claims 1 to 3, whereinthe clip piece is incombustible,the inner-wall frame includes a pair of left and right vertical frame members and a pair of top and bottom horizontal frame members,the clip piece includes a vertically-elongated clip piece to be secured to the vertical frame member having a length approximately the same as a length of the vertical frame member,the clip piece includes a horizontally-elongated clip piece to be secured to the horizontal frame member having a length approximately the same as a length of the horizontal frame member, andthe vertically-elongated clip piece and the horizontally-elongated clip piece are coupled to one another.

5. An inner-wall thermal insulation structure using the inner-wall panel according to any one of claims 1 to 3, whereinthe inner-wall panel comprises a plurality of inner-wall panels disposed continuously,a joint thermal insulation material filling a vertical joint formed at an exterior side of the clip piece and between the eared thermal insulation materials of the respective inner-wall panels adjacent to one another is disposed, andthe eared thermal insulation materials and the joint thermal insulation material are alternately disposed in a continuous manner in a horizontal direction.INTERNATIONAL SEARCH REPORT International application No. PCT / JP2024 / 024458A. CLASSIFICATION OF SUBJECT MATTER EMB l / S0(2W6.01)i;EMB l / 76(2006.01)i; EMC 224(2006.01)i; E04C 2 / 3^(2006.0l)i; EMC 2 / 284(2006.01)1 FI: E04B1 / 80 100P; E04B1 / 76 500F; E04C2 / 284; E04C2 / 38 Z; E04C2 / 24 P According to International Patent Classification (IPC) or to both national classification and IPC B. FIELDS SEARCHED Minimum documentation searched (classification system followed by classification symbols) E04B1 / 80; E04B1 / 76: E04C2 / 24; E04C2 / 38: E04C2 / 284 Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched Published examined utility model applications of Japan 1922-1996 Published unexamined utility model applications of Japan 1971-2024 Registered utility model specifications of Japan 1996-2024 Published registered utility model applications of Japan 1994-2024 Electronic data base consulted during the international search (name of data base and, where practicable, search terms used) C. DOCUMENTS CONSIDERED TO BE RELEVANT Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No. Y A Y A JP 2001-271437 A (ASAHI FIBER GLASS COMPANY, LIMITED) 05 October 2001 (2001-10-05) paragraphs [0009]-[0015], [0029], fig. 2, 3 JP 6914020 B2 (SHIMIZU CORP.) 04 August 2021 (2021-08-04) paragraph [0041] 1,5 2-4 2-4 A JP 2020-84540 A (ITOKI CORP.) 04 June 2020 (2020-06-04) entire text, all drawings, particularly, paragraphs [0050]-[0051], fig. 5, 6 1-5 A KR 10-2157195 Bl (KIRIN IND CO., LTD.) 18 September 2020 (2020-09-18) entire text, all drawings 1-5 | | Further documents are listed in the continuation of Box C. | Z | See patent family annex. * Special categories of cited documents: "A" document defining the general state of the art which is not considered to be of particular relevance “D” document cited by the applicant in the international application ,4E” earlier application or patent but published on or after the international filing date •4L” document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified) “O” document referring to an oral disclosure, use, exhibition or other means “P” document published prior to the international filing date but later than the priority date claimed “T” later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention “X” document of particular' relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone “Y” document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art document member of the same patent family Date of the actual completion of the international search 10 September 2024 Date of mailing of the international search report 24 September 2024 Name and mailing address of the ISA / JP Japan Patent Office (ISA / JP) 3-4-3 Kasumigaseki, Chiyoda-ku, Tokyo 100-8915 Japan Authorized officer Telephone No.INTERNATIONAL SEARCH REPORT Information on patent family membersInternational application No.PCT / JP2024 / 024458Patent document cited in search report Publication date (day / month / year) Patent family member: s) Publication date (day / month / year) JP 2001-271437 A 05 October 2001 (Family: none) JP 6914020 B2 04 August 2021 (Family: none) JP 2020-84540 A 04 June 2020 (Family: none) KR 10-2157195 Bl 18 September 2020 (Family: none)

Images