Thermal insulation material fixing bracket, and thermal insulation structure for steel-framed building

Abstract

To provide a thermal insulation material fixing bracket that can efficiently fix a board-shaped thermal insulation material in a direction perpendicular to the surface of a flange of a beam material, and a thermal insulation structure for a steel-framed building using the thermal insulation material fixing bracket.SOLUTION: A thermal insulation material fixing bracket 1 comprises a clip part 10 for clamping an edge of a flange 31, and a thermal insulation material pressing part 20 that is rotatably and axially attached to the clip part 10. A thermal insulation material abutment piece 16 protrudes from the clip part 10. The thermal insulation material pressing part 20 includes a rotating base piece, a protruding part, and a thermal insulation material pressing piece 23, and the rotating base piece is axially attached to a front surface of the clip part 10 through one pinned joint 24. An under-beam thermal insulation material 41 is erected below a beam material 3 with the thermal insulation material pressing piece 23 facing upward, an upper edge of the under-beam thermal insulation material 41 on an outdoor side is pressed against the thermal insulation material abutment piece 16, and an upper edge of the under-beam thermal insulation material 41 on an indoor side is covered with the thermal insulation material pressing piece 23, so that the under-beam thermal insulation material 41 is erected below the beam material 3.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The invention disclosed in this application is a heat insulation material fixing bracket used in a heat insulation method for the outer periphery of a steel frame building. The present invention relates to the insulation structure of a steel-framed building using these insulation material fixing brackets. [Background technology]

[0002] A known thermal insulation structure for use in the outer periphery of a steel-framed building is to erect an interior wall base panel, which is an integrated frame and thermal insulation material, inside or slightly inside the structural plane of the framework surrounded by the columns and beams of the outer periphery, to form an insulation line, and then to apply interior wall finishing materials such as gypsum board or wallpaper to the interior wall base panel. The frame of such an interior wall base panel is formed using wood or lightweight steel material, and the thermal insulation material often used is a board-shaped insulation material made of a foamed resin such as polystyrene foam, polyethylene foam, rigid urethane foam, or phenol foam, or a fiber-based insulation material made of mineral fibers such as glass wool or rock wool formed into a mat shape. The present applicant has also proposed and put into practical use such an insulation structure in which an interior wall base panel of this type is erected inside the structural plane of the framework in Patent Documents 1 and 2, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-266417 [Patent Document 2] JP 2010-037873 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional heat-insulating structure, the interior wall base panel is fixed to the pillars and beams that make up the framework via metal mounting members. Therefore, even if the interior wall base panel is erected slightly away from the framework, a thermal bridge is formed via the mounting members that connect the framework and the interior wall base panel, which may become a weak point in the heat-insulating design. This is especially a concern when lightweight steel with high thermal conductivity is used for the frame that makes up the interior wall base panel. In addition, the gap that is formed between the framework and the interior wall base panel around the installation location of the mounting members is also likely to become a break in the insulation line.

[0005] The invention disclosed in this application was conceived to eliminate the aforementioned weaknesses in thermal insulation design, and aims to form a seamless thermal insulation line between the framework of the outer periphery of a steel-framed building and the interior wall base. To this end, we propose a board-shaped insulation material that is highly self-supporting and easy to obtain uniform thermal insulation performance, an insulation material fixing bracket that can easily fit the insulation material into the structural surface of the framework of the framework without any gaps and fix it in place, and an insulation structure for a steel-framed building in which the insulation material is installed on the indoor side of the framework using the insulation material fixing bracket. [Means for solving the problem]

[0006] The configuration of the insulation material fixing bracket adopted in the present application to achieve the above-mentioned object is an insulation material fixing bracket that is attached to a flange of a structural material made of a shaped steel material having at least one flange, and is used to fix a board-shaped insulation material that is erected in a direction perpendicular to the surface of the flange, and is equipped with a clip portion formed to be able to elastically clamp the edge of the flange, and a movable insulation material pressing portion connected to the clip portion, and the clip portion is formed so that a first clamping piece and a second clamping piece facing each other and a clamping piece connection portion connecting the base ends of the clamping pieces are bent into a U-shape when viewed from the side, and an insulation material abutment piece is protruded from the first clamping piece in a direction away from the second clamping piece, The insulation material holding portion comprises a pivotable base piece overlapping the clamping piece connection portion of the clip portion, an extension portion extending away from the clip portion, and an insulation material holding piece facing the insulation material abutment piece on the extending end side of the extension portion, and is characterized in that the clamping piece connection portion of the clip portion and the pivotable base piece of the insulation material holding portion are axially attached via a pin joint at one location, such that the insulation material holding portion is formed so as to be able to rotate relative to the clip portion within a plane parallel to the clamping piece connection portion.

[0007] Furthermore, the pin node is located at a position biased toward the end of the clamping piece connection portion and the rotating base piece rather than the center in the width direction of the clamping piece connection portion and the rotating base piece, and when the insulation material holding portion is rotated within a predetermined angle range based on the position of the insulation material holding piece relative to the insulation material abutting piece, the entire front side of the insulation material abutting piece is opened.

[0008] Further, the insulation material pressing piece of the insulation material pressing part is overlapped with and axially attached to a rotating base piece of a separate insulation material pressing part, so that the two insulation material pressing parts are held rotatably relative to each other.

[0009] In addition, the insulation structure of a steel-framed building adopted in the present application can be characterized as follows: an insulation fixing bracket having the above-mentioned configuration is attached to the lower flange of a beam arranged on the outer periphery of a steel-framed building, with the clip portion clamped to the flange from the indoor side and the insulation abutment piece and the insulation pressing piece protruding downward, and a board-shaped under-beam insulation is erected below the beam, with the outdoor side upper edge of the under-beam insulation pressed against the insulation abutment piece and the indoor side upper edge of the under-beam insulation covered by the insulation pressing piece.

[0010] Furthermore, in the insulation structure of the above-mentioned steel-framed building, the under-beam insulation material is characterized in that it is installed below the beam with its indoor side surface extending indoors beyond the indoor side edge of the flange of the beam, and a cross-beam insulation material is installed above the under-beam insulation material to cover the indoor side of the beam.

[0011] In addition, the insulation structure of a steel-framed building adopted in the present application comprises an insulation fixing bracket having two insulation material clamping portions rotatably attached to the lower flange of a beam arranged on the outer periphery of the steel-framed building, the clip portion being clamped to the flange from the indoor side and the insulation material abutment piece being attached so as to protrude downward, a board-shaped under-beam insulation material is erected below the beam, the outdoor side upper edge of the under-beam insulation material is pressed against the insulation abutment piece, and the indoor side upper edge of the under-beam insulation material is covered with the insulation material clamping piece of the insulation material clamping part located on the outdoor side of the two insulation material clamping parts, so that the under-beam insulation material is erected below the beam with its indoor side surface protruding indoors beyond the indoor side edge of the flange of the beam, and a beam cross-insulation material covering the indoor side of the beam is erected above the under-beam insulation material, It is characterized in that the lower edge of the indoor side of the beam crossing thermal material is covered with the insulation material pressing piece of the insulation material pressing part located on the indoor side of the two insulation material pressing parts. Effect of the Invention

[0012] According to the insulation material fixing bracket configured as described above, a board-shaped insulation material can be precisely positioned and easily fixed to a structural material having at least one flange, the board being installed perpendicular to the surface of the flange.

[0013] In addition, if this insulation fixing bracket is used to adopt an insulation structure in which board-shaped under-beam insulation is erected under the beams placed on the periphery of a steel-framed building, it becomes easy to fix the under-beam insulation with the upper edge of the under-beam insulation abutting the beams and with the indoor surface of the under-beam insulation slightly protruding indoors beyond the side edge of the flange of the beams. This makes it possible to efficiently install a seamless insulation line between the framework and the interior wall base on the periphery of the steel-framed building. [Brief description of the drawings]

[0014] [Figure 1]1A, 1B, and 1C are three views of a heat insulating material fixing bracket according to a first embodiment of the invention disclosed in the present application, where (a) is a front view, (b) is a top view, and (c) is a side view. [Diagram 2] 2 is a cross-sectional view showing a heat insulating structure in which a heat insulating material is fixed below a beam material using the heat insulating material fixing bracket of FIG. 1. [Diagram 3] 5A to 5C are three views of a heat insulating material fixing bracket according to a second embodiment of the invention disclosed in the present application, where (a) is a front view, (b) is a top view, and (c) is a side view. [Figure 4] 4 is a cross-sectional view showing a heat insulating structure in which a heat insulating material is fixed below a beam material using the heat insulating material fixing bracket of FIG. 3. [Diagram 5] 11 is a cross-sectional view showing a thermal insulation structure in which a thermal insulation material is fixed below a beam material using a thermal insulation material fixing bracket according to a third embodiment of the invention disclosed in the present application. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] First Embodiment FIG. 1 shows the configuration of an insulation material fixing bracket according to the first embodiment of the invention disclosed in this application, and FIG. 2 shows the fit of the insulation material fixed around the beams at the outer periphery of a steel-framed building using the insulation material fixing bracket.

[0016] As shown in Fig. 2, the heat insulation fixing bracket 1 is attached from the indoor side to the lower flange 31 of a beam 3 arranged on the outer periphery of a steel-framed building, and fixes a board-shaped heat insulation material (beam-under-insulation material 41) that is set up below the flange 31. Here, the "beam flange" refers to at least one flat plate-shaped portion that protrudes approximately horizontally in a cross section perpendicular to the material axis of the beam 3, which is mainly made of H-shaped steel or similar shaped steel material (for example, channel steel without a lip, hat-shaped steel, steel material in which two channel steel pieces are joined back-to-back, etc.). The board-shaped heat insulation material is assumed to be a flat molded body several centimeters thick that is mainly made of hard expandable resin (polystyrene foam, polyethylene foam, urethane foam, phenol foam, etc.).

[0017] The insulation material fixing bracket 1 comprises a clip portion 10 formed so as to elastically clamp the edge of the flange 31 of the beam material 3, and a movable insulation material holding portion 20 connected to the clip portion 10.

[0018] In the first embodiment shown in Fig. 1, the clip portion 10 of the heat insulating material fixing bracket 1 is a member in which the first clamping piece 11 and the second clamping piece 12 facing each other in the vertical direction and the clamping piece connecting portion 13 connecting the indoor side base ends of the clamping pieces 11 and 12 are bent into a U-shape when viewed from the side and are formed continuously. This clip portion is formed by punching and bending a thin steel plate having spring elasticity. The height of the clamping piece connecting portion 13 is slightly larger than the thickness of the flange 31 of the beam material 3, the widths of the first clamping piece 11, the second clamping piece 12 and the clamping piece connecting portion 13 when viewed from the front are uniform, and the length of the second clamping piece 12 is set to a dimension not exceeding the projection length from the web 32 of the flange 31 it clamps.

[0019] The first clamping piece 11 and the clamping piece connection part 13 are connected at a substantially right angle, and the second clamping piece 12 is inclined from the clamping piece connection part 13 side toward the free end side so as to approach the first clamping piece 11, and is shaped so that the opposing distance between the two clamping pieces at the narrowest part on the free side is slightly smaller than the thickness of the flange 31. At the tip of the second clamping piece 12, a welcoming inclined piece 14 is formed which is folded back in a direction away from the first clamping piece 11 in order to facilitate mounting to the flange 31. Furthermore, the second clamping piece 12 has a stopper piece 15 which can be engaged with a mounting hole 33 formed in advance at an appropriate position of the flange 31, formed by cutting the middle part of the second clamping piece 12 toward the first clamping piece 11 in a substantially semicircular shape.

[0020] In this embodiment, the first clamping piece 11 extends further toward the outdoor side than the second clamping piece 12. At the extending end of the first clamping piece 11, a heat insulating material abutting piece 16 is provided so as to protrude in a direction away from the second clamping piece 12 and to be perpendicular to the first clamping piece 11 and parallel to the clamping piece connection part 13.

[0021] On the other hand, the insulation material pressing part 20 is a member formed so that a rotating base piece 21 overlapping the clamping piece connection part 13 of the clip part 10, an extension part 22 extending in a direction away from the clip part 10 in substantially the same plane as the first clamping piece 11 of the clip part 10, and an insulation material pressing piece 23 facing the insulation material abutment piece 16 at the extension end side of the extension part 22 are bent into a Z shape in a side view and are continuous. This insulation material pressing part 20 is also formed by punching and bending a thin steel plate having spring elasticity.

[0022] The pivot base piece 21 is formed so that its width and height as viewed from the front are approximately the same as those of the clamp piece connection part 13. The extension part 22 is formed so that one side edge of the extension part 22 is aligned with one side edge of the clip part 10, and the width to the other side edge is smaller than the width of the clip part 10. The insulation material pressing piece 23 is formed so that its width as viewed from the front is aligned with the width of the clip part 10, except for a part of the side connected to the extension part 22, and its height is approximately the same as the height of the insulation material abutting piece 16. The opposing distance D1 between the insulation material pressing piece 23 and the insulation material abutting piece 16 is set so as to match the thickness of the thick under-beam insulation material 41.

[0023] The rotating base piece 21 of the insulation material holding part 20 is axially attached to the clamping piece connection part 13 of the clip part 10 via one pin joint 24. A pop rivet (blind rivet), for example, is used for this pin joint 24. This holds the insulation material holding part 20 so that it can rotate with an appropriate amount of frictional resistance with respect to the clip part 10 within a plane parallel to the clamping piece connection part 13, around the pin joint 24.

[0024] The pin joint 24 is provided at a position shifted toward the end of the clamping piece connection part 13 and the rotating base piece 21 from the center in the width direction of both, more preferably at a position close to both ends. Therefore, as shown in Fig. 1(a), when the insulation material holding part 20 is rotated 90 degrees to 180 degrees clockwise in the figure based on the position where the insulation material holding piece 23 faces the insulation material abutting piece 16 (the position where the insulation material holding piece 23 overlaps with the insulation material abutting piece 16 when viewed from the front), the entire front side of the insulation material abutting piece 16 is opened.

[0025] The heat insulation structure of a steel-framed building constructed using this heat insulation material fixing bracket 1 is, as shown in Fig. 2, a board-shaped beam-under insulation material 41 is built close to the indoor side within the structural surface of the framework surrounded by the outer periphery column material (not shown) and the beam material 3, forming a heat insulation line between the framework and the interior wall foundation. In Fig. 2, reference numeral 61 denotes an exterior wall material, reference numeral 62 denotes a bracket connected to the beam material 3 to connect the exterior wall material 61 to the framework, reference numeral 63 denotes an exterior wall material fixing bracket, and reference numeral 43 denotes a fiber-based heat insulation material filled on the outdoor side within the structural surface of the framework. Reference numerals 71 and 72 denote a ceiling joist and a ceiling joist that are suspended from a beam material (not shown) that is stretched across the indoor side to form a ceiling foundation, and reference numeral 73 denotes a ceiling board. Reference numerals 74 and 75 denote an interior wall foundation and a gypsum board.

[0026] The insulation material fixing bracket 1 is attached to the flange 31 of the beam 3 made of H-shaped steel from the indoor side, with the insulation material abutment piece 16 facing downward. By clamping the clip part 10 to the flange 31 and engaging the retaining piece 15 with the mounting hole 33 formed in the flange 31, the insulation material fixing bracket 1 is fixed so that it does not easily fall off the beam 3 and does not shift in the length direction of the beam 3. The insulation material fixing bracket 1 attached to the beam 3 is temporarily held in a state in which the insulation material pressing part 20 has been rotated upward so that the front of the insulation material abutment piece 16 is open to the indoor side.

[0027] After a number of insulation fixing brackets 1 are attached at appropriate intervals in the longitudinal direction of the beam 3, a board-shaped under-beam insulation 41 is erected below the beam 3. The under-beam insulation 41 is pre-cut to size so that its height matches the height from the subfloor surface (not shown) of the floor below the beam 3 to the underside of the beam 3. After the lower edge of the under-beam insulation 41 is positioned on the subfloor surface of the floor below, the under-beam insulation 41 is erected from the indoor side, and its upper edge on the outdoor side is pressed against the insulation abutment piece 16 protruding below the beam 3. This insulation abutment piece 16 holds the under-beam insulation 41 in place without it falling to the outdoor side.

[0028] Generally, in buildings with rigid frame construction using heavy steel frames, there are few braces or studs arranged inside the structural surface of the building frame, which can make it difficult to find support members when erecting or filling the insulation materials 41, 43 within the structural surface. However, by attaching the insulation material fixing bracket 1 having such insulation material abutment piece 16 to the flange 31 of the beam material 3, it is possible to easily position and hold the under-beam insulation material 41.

[0029] When the insulation material holding part 20 is rotated with the insulation material holding piece 23 facing downward and covering the upper edge of the indoor side of the insulation material 41, the insulation material 41 is prevented from tilting toward the indoor side and the insulation material 41 is fixed directly under the beam 3. At this time, the opposing distance D1 between the insulation material abutment piece 16 and the insulation material holding piece 23 in the insulation material fixing bracket 1 and the thickness of the insulation material 41 are set so that the indoor side surface of the insulation material 41 protrudes slightly toward the indoor side beyond the indoor side edge of the flange 31 of the beam 3. In the illustrated embodiment, the extension part 22 of the insulation material holding part 20 extends toward the indoor side at the same height as the first clamping piece 11, but the extension height of the extension part 22 may be slightly shifted upward or downward within a range in which the insulation material holding piece 23 can reasonably prevent the insulation material 41 from tilting toward the indoor side. In this way, with an insulating structure in which the under-beam insulation material 41 is installed within the frame structural surface, even if the frame structural surface deforms or sways in an in-plane direction due to an earthquake or other strong external force, there is a slight amount of play between the frame structural surface and the under-beam insulation material 41, which makes it easier to prevent the under-beam insulation material 41 from cracking or deforming, or to prevent scraping noises.

[0030] Furthermore, in this heat insulation structure, a heat insulating material is also attached above the beam insulation material 41. In the illustrated embodiment, a fiber-based heat insulating material 44 is filled in a recess surrounded by the upper and lower flanges 31 and webs 32 of the H-shaped steel constituting the beam material 3, and a board-shaped beam crossing heat insulating material 42 is built on top of it on the indoor side. The beam crossing heat insulating material 42 is arranged so that its lower end edge is placed on the upper end edge of the beam crossing heat insulating material 41 that protrudes indoors beyond the side edge of the flange 31, and the contact point with the beam crossing heat insulating material 41 is fixed by sealing with tape (not shown). In the illustrated embodiment, the beam crossing heat insulating material 42 protrudes slightly indoors more than the beam crossing heat insulating material 41, but the indoor surfaces of both heat insulating materials 41, 42 may be flush with each other.

[0031] In this way, an insulation line is formed on the indoor side of the framework of the outer periphery of the steel-framed building, where the under-beam insulation material 41 and the cross-beam insulation material 42 are continuous without interruption. By making the indoor surface of the under-beam insulation material 41 and the cross-beam insulation material 42 slightly protrude indoors beyond the side edge of the flange 31 of the beam material 3, it is possible to prevent the flange 31 of the beam material 3 from protruding indoors beyond the insulation line and forming a thermal bridge. An appropriate film material (not shown) for the purpose of airtightness, moisture resistance, fire resistance, etc. can also be laminated on the indoor side of this insulation line. Then, the ceiling base and the interior wall base that surround the indoor space are installed so as to cut off from this insulation line.

[0032] <Second embodiment> Fig. 3 shows the configuration of a heat insulation material fixing bracket according to a second embodiment of the invention disclosed in this application, and Fig. 4 shows how the heat insulation material fixing bracket is used to fix heat insulation material around a beam material at the outer periphery of a steel frame building. As with the first embodiment described above, the heat insulation material fixing bracket 1 according to this embodiment also comprises a clip portion 10 capable of elastically clamping the edge portion of the flange 31 of the beam material 3, and a heat insulation material pressing portion 20 rotatably connected to the clip portion 10. Since the basic configuration is the same as in the first embodiment, the same reference numerals as in the first embodiment are used for the common members and parts, and the description will be omitted, and only the differences will be described.

[0033] In this embodiment, the insulation abutment piece 16 in the clip portion 10 is provided closer to the interior than in the first embodiment. The insulation abutment piece 16 is formed by cutting and raising the middle portion of the first clamping piece 11 into a U-shape when viewed from above. Therefore, the width of the insulation abutment piece 16 is smaller than in the first embodiment, but the downward protruding height is approximately the same as in the first embodiment. According to this embodiment, the opposing distance D2 between the insulation abutment piece 16 and the insulation pressing piece 23 is smaller than in the first embodiment, so that a thin under-beam insulation material 41 can be fixed below the beam material 3 as shown in FIG. 4. Other configurations related to the insulation structure are the same as those of the first embodiment shown in FIG. 2.

[0034] <Third embodiment> 5 shows how insulation is fixed around beams on the outer periphery of a steel-framed building using an insulation fixing bracket according to a third embodiment of the invention disclosed in this application. The insulation fixing bracket 1 according to this embodiment is configured by additionally connecting a separate insulation pressing part 20 to the indoor side of the insulation fixing bracket 1 according to the first embodiment described above. Since the other configurations are the same as those of the first embodiment, the same reference numerals as those of the first embodiment are used for the common members and parts, and their explanations will be omitted, and only the differences will be explained.

[0035] The insulation material holding part 20 added to the indoor side is formed so that the rotating base piece 21, the extension part 22 and the insulation material holding piece 23 are bent into a Z shape and connected in a side view, similar to the insulation material holding part 20 of the first embodiment. The rotating base piece 21 of the insulation material holding part 20 on the indoor side is axially attached to the insulation material holding piece 23 of the insulation material holding part 20 on the outdoor side via a pin joint 24. This pin joint 24 is also provided near the end when viewed from the front on the indoor side.

[0036] Since the two pin joints are independent, the added indoor insulation material holding part 20 can rotate in its own direction without being affected by the rotational position of the outdoor insulation material holding part 20. Therefore, by orienting the insulation material holding piece 23 of the added indoor insulation material holding part 20 upward, the lower edge of the beam crossing insulation material 42 can be supported. In other words, the dimensions of the extension part 22 of the indoor insulation material holding part 20 are set to match the thickness of the beam crossing insulation material 42. With this insulation structure, the beam under insulation material 41 and the beam crossing insulation material 42 are fixed to allow lateral shifting between them, further improving responsiveness to deformation and rocking of the framework structural surface.

[0037] As described above, by using the heat insulation material fixing bracket 1 disclosed in the present application, the board-shaped heat insulation material 4, which is set up in the direction perpendicular to the surface of the flange 31, can be accurately positioned and easily fixed to the beam material 3 having at least one flange 31. In addition, by using this heat insulation material fixing bracket 1 to set up the board-shaped beam under-insulation material 41 below the beam material 3 arranged in the outer periphery, the indoor surface of the beam under-insulation material 41 is made to protrude toward the indoor side from the side edge of the flange 31 of the beam material 3, and the board-shaped beam crossing heat material 42 is also fitted into the indoor side of the beam material 3, and the indoor surface and the indoor surface of the beam under-insulation material 41 are connected without any gaps, so that a seamless heat insulation line can be efficiently constructed between the framework of the outer periphery and the inner wall base. If a film material for the purpose of airtightness, moisture resistance, fire resistance, etc. is laid on the indoor side of the heat insulation line, the airtightness, moisture resistance, and fire resistance of the steel-framed building can be further improved.

[0038] Moreover, this heat insulation material fixing bracket can be attached not only to beams as exemplified above, but also to the flanges of pillar materials such as H-shaped steel or channel steel. In other words, by replacing the length and width of this heat insulation material fixing bracket and attaching it to each flange of a pair of adjacent pillar materials spaced apart horizontally, it is possible to easily fix a board-shaped inter-column heat insulation material by fitting it between the two pillar materials without any gaps. Similarly, it can be applied to the heat insulation structure of a sloped roof structure. Also, it can be used not only for heat insulation materials, but also for erecting sound-absorbing materials and fire-resistant covering materials processed into similar board shapes.

[0039] The technical scope of the invention disclosed in this application should not be interpreted as being limited by the illustrated embodiment, but should be interpreted conceptually based on the description of the claims. The illustrated configurations of the heat insulation material fixing bracket and the heat insulation structure of the steel frame building are examples, and when implementing the invention disclosed in this application, the detailed shape, dimensions, structure, material, quantity, connection form with other elements, relative positional relationship, etc. of the components not specifically specified in the claims can be appropriately modified within a range that provides substantially the same or greater effect as the illustrated embodiment.

[0040] Furthermore, the embodiments and other matters disclosed in this specification can also be understood as the technical ideas described in the following supplementary notes. (Appendix 1) A heat insulation material fixing bracket for fixing a board-shaped heat insulation material that is attached to a flange of a structural material made of a shaped steel material having at least one flange and is erected in a direction perpendicular to the surface of the flange, The present invention includes a clip portion formed to be capable of elastically clamping the edge portion of the flange, and a movable insulation material pressing portion connected to the clip portion, The clip portion is formed such that a first clamping piece and a second clamping piece facing each other and a clamping piece connection portion connecting the base ends of the clamping pieces are bent into a U-shape in a side view and are continuous, The first clamping piece has a heat insulating material abutment piece protruding therefrom in a direction away from the second clamping piece, The heat insulating material pressing portion includes a pivot base piece that overlaps with the clamping piece connection portion of the clip portion, a protruding portion that extends in a direction away from the clip portion, and a heat insulating material pressing piece that faces the heat insulating material abutment piece on the extended end side of the protruding portion, The clamping piece connection part of the clip part and the rotation base piece of the heat insulating material pressing part are pivotally connected via a pin joint at one location, so that the heat insulating material pressing part can rotate relative to the clip part within a plane parallel to the clamping piece connection part. A heat insulation material fixing bracket characterized by the above. (Appendix 2) In the heat insulation fixing bracket described in Appendix 1, The pin joint is provided at a position biased toward an end of the clamping piece connection portion and the pivot base piece from a center in a width direction of the clamping piece connection portion and the pivot base piece, When the insulation material pressing piece is rotated within a predetermined angle range based on the position of the insulation material pressing piece relative to the insulation material abutting piece, the entire front side of the insulation material abutting piece is opened. A heat insulation material fixing bracket characterized by the above. (Appendix 3) In the case of the heat insulation fixing brackets described in Appendix 1 or 2, A rotation base piece of a separate insulation material pressing part is placed on the insulation material pressing piece of the insulation material pressing part and axially attached, so that the two insulation material pressing parts are held rotatably relative to each other. A heat insulation material fixing bracket characterized by the above. (Appendix 4) The insulation material fixing bracket described in appendix 1 or 2 is attached to the lower flange of a beam arranged on the outer periphery of a steel-framed building by clamping the clip part to the flange from the indoor side and by causing the insulation material abutment piece and the insulation material pressing piece to protrude downward, A board-shaped beam insulation material is installed under the beam material, The upper edge of the outdoor side of the beam insulation is pressed against the insulation abutment piece, The insulation material pressing piece is placed over the upper edge of the indoor side of the under-beam insulation material. A thermal insulation structure for a steel frame building. (Appendix 5) In the thermal insulation structure of a steel-framed building described in Appendix 4, The beam under-insulation material is erected below the beam with the indoor surface protruding indoors beyond the indoor side edge of the flange of the beam, Above the beam under-insulation material, a beam cross-insulation material was installed to cover the indoor side of the beam. A thermal insulation structure for a steel frame building. (Appendix 6) The insulation material fixing bracket described in Appendix 3 is attached to the lower flange of a beam arranged on the outer periphery of a steel-framed building by clamping the clip part to the flange from the indoor side and by protruding the insulation material abutment piece downward, A board-shaped beam insulation material is installed under the beam material, The upper edge of the outdoor side of the beam insulation is pressed against the insulation abutment piece, The insulation material is then applied to the upper edge of the beam insulation material on the indoor side by the insulation material pressing piece of the insulation material pressing part located on the outdoor side of the two insulation material pressing parts. The beam under-insulation material is erected below the beam with its indoor surface protruding indoors beyond the indoor side edge of the flange of the beam, A beam crossing insulation material is erected above the beam under-insulation material to cover the indoor side of the beam material, The lower edge of the indoor side of the beam crossing heat exchanger is covered with the heat exchanger pressing piece of the heat exchanger pressing part located on the indoor side of the two heat exchanger pressing parts. A thermal insulation structure for a steel frame building. [Industrial Applicability]

[0041] The invention disclosed in this application can be widely used in heat insulation construction methods for steel-framed buildings. [Explanation of symbols]

[0042] 1. Insulation material fixing bracket 10 Clip part 11 First clamping piece 12 Second clamping piece 13 Clamp piece connection part 14. Inclined piece 15 Retaining piece 16 Insulation contact piece 20 Insulation material holding part 21 Rotating base 22. Carrying Out Department 23 Insulation retainer 24 pin nodes 3 Beam material 31 Flange 32 Web 33 Mounting hole 41 Under-beam insulation 42 Beam cross-section heat exchanger 43 Fiber-based insulation materials 44 Fiber insulation materials 61 Exterior wall materials 62 Bracket 63 Exterior wall material fixing bracket 71 Nobori Uke 72 Ceiling joist 73 Ceiling Panel 74 Interior wall base 75 Gypsum board

Claims

1. A heat insulation material fixing bracket for fixing a board-shaped heat insulation material that is attached to a flange of a structural material made of a shaped steel material having at least one flange and is erected in a direction perpendicular to the surface of the flange, The present invention includes a clip portion formed to elastically hold the edge of the flange, and a movable insulation material pressing portion connected to the clip portion, The clip portion is formed such that a first clamping piece and a second clamping piece facing each other and a clamping piece connection portion connecting base ends of the clamping pieces are bent into a U-shape in a side view and are continuous, The first clamping piece has a heat insulating material abutment piece protruding therefrom in a direction away from the second clamping piece, The heat insulating material pressing portion includes a pivot base piece that overlaps with the clamping piece connection portion of the clip portion, a protruding portion that extends in a direction away from the clip portion, and a heat insulating material pressing piece that faces the heat insulating material abutment piece on the extended end side of the protruding portion, The clamping piece connection part of the clip part and the rotation base piece of the heat insulating material pressing part are pivotally connected via a pin joint at one location, so that the heat insulating material pressing part can rotate relative to the clip part within a plane parallel to the clamping piece connection part. A heat insulation material fixing bracket characterized by the above.

2. The heat insulating material fixing bracket according to claim 1, The pin joint is provided at a position biased toward an end of the clamping piece connection portion and the pivot base piece from a center in a width direction of the clamping piece connection portion and the pivot base piece, When the insulation material pressing piece is rotated within a predetermined angle range based on the position of the insulation material pressing piece relative to the insulation material abutting piece, the entire front side of the insulation material abutting piece is opened. A heat insulation material fixing bracket characterized by the above.

3. The heat insulating material fixing bracket according to claim 1 or 2, A rotation base piece of a separate insulation material pressing part is placed on the insulation material pressing piece of the insulation material pressing part and axially attached, so that the two insulation material pressing parts are held rotatably relative to each other. A heat insulation material fixing bracket characterized by the above.

4. The insulation material fixing bracket according to claim 1 or 2 is attached to a lower flange of a beam arranged on the outer periphery of a steel frame building by clamping the clip part to the flange from the indoor side and by causing the insulation material abutment piece and the insulation material pressing piece to protrude downward, A board-shaped beam insulation material is installed under the beam material, The upper edge of the outdoor side of the beam insulation is pressed against the insulation abutment piece, The insulation material pressing piece is placed over the upper edge of the indoor side of the under-beam insulation material. A thermal insulation structure for a steel frame building.

5. In the heat insulating structure of a steel frame building according to claim 4, The beam under-insulation material is erected below the beam with the indoor surface protruding indoors beyond the indoor side edge of the flange of the beam, Above the beam under-insulation material, a beam cross-insulation material was installed to cover the indoor side of the beam. A thermal insulation structure for a steel frame building.

6. The insulation material fixing bracket according to claim 3 is attached to a lower flange of a beam arranged on the outer periphery of a steel-framed building by clamping the clip portion to the flange from the indoor side and by causing the insulation material abutment piece to protrude downward, A board-shaped beam insulation material is installed under the beam material, The upper edge of the outdoor side of the beam insulation is pressed against the insulation abutment piece, The insulation material is then applied to the upper edge of the beam insulation material on the indoor side by the insulation material pressing piece of the insulation material pressing part located on the outdoor side of the two insulation material pressing parts. The beam under-insulation material is erected below the beam with its indoor surface protruding indoors beyond the indoor side edge of the flange of the beam, A beam crossing insulation material is erected above the beam under-insulation material to cover the indoor side of the beam material, The lower edge of the indoor side of the beam crossing heat exchanger is covered with the heat exchanger pressing piece of the heat exchanger pressing part located on the indoor side of the two heat exchanger pressing parts. A thermal insulation structure for a steel frame building.

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