Fixture for heat insulating and sound absorbing material and mounting structure for heat insulating and sound absorbing material using the same

Abstract

To provide a fixture capable of easily and safely fixing a heat insulating / sound absorbing material to a mounting surface. [Solution] Caps 12a-12d are integrally formed from a single molded product consisting of upper plates 14a-14d, lower plates 16a-16d located below the upper plates 14a-14d at a predetermined distance, and L-shaped legs 18a-18d having a right-angled planar shape that connect the upper plates 14a-14d and the lower plates 16a-16d, and the fixing device 10 for thermal insulating and sound absorbing material is configured so that the corners of the thermal insulating and sound absorbing material 30 are accommodated and held within the respective inner spaces formed by the upper plates 14a-14d, lower plates 16a-16d, and L-shaped legs 18a-18d.

Description

[Technical Field]

[0001] The present invention relates to a fastener for heat insulating and sound absorbing materials and a mounting structure for heat insulating and sound absorbing materials using the same, and in particular to a fastener that can easily and advantageously fasten heat insulating and sound absorbing materials of a predetermined thickness to a mounting surface, and to an effective mounting structure for heat insulating and sound absorbing materials using the same. It should be noted that the term "heat insulating and sound absorbing materials" is used here as a general term to refer to not only heat insulating materials and sound absorbing materials, but also heat insulating materials, sound insulating materials, heat retaining materials, cushioning materials, etc. [Background technology]

[0002] Conventionally, in buildings, air conditioning equipment, mechanical equipment, etc., in order to improve their thermal insulation and soundproofing effects, thermal insulation materials and sound absorbing materials formed into rectangular blocks of a predetermined thickness, which are made by covering glass wool, rock wool, etc. with a covering such as glass cloth, have been installed and fixed to cover the mounting surfaces of the interior and exterior walls of buildings, the exterior panels of air conditioning equipment, mechanical equipment, etc. Also, in unit-type air conditioners, large air purifiers, etc., sound absorbing materials made of the same materials as those mentioned above are usually installed on the exterior panels of their ducts to prevent noise.

[0003] In order to arrange and fix such heat insulating material or sound absorbing material to a predetermined mounting surface, various fixing devices and fixing methods have been proposed and used up until now. For example, Japanese Utility Model Laid-Open Publication No. 55-15421 discloses a conventional inserting and fastening device, as shown in FIG. 1 thereof, in which a pin of a predetermined length is erected on a mounting plate adhesively fixed to the wall surface of a duct or the like, and the sharp end of the pin is passed through an outer abutment piece that is placed so as to press against the outer surface of a heat insulating material of a predetermined thickness that is inserted and held by the pin, and the sharp end that has passed through is bent. Therefore, a structure has been clarified in which the outer piece is pressed against the outer surface of the insulation to hold the insulation. However, with such a fixing method, in addition to work safety issues such as workers being injured by the sharp end of the pin protruding from the outer surface of the insulation, there is also the problem of an increased number of parts because the mounting plate, pin, and even the outer piece must be manufactured separately. There are also inherent problems with the work of fixing the insulation, such as the need to bend the sharp end of the pin to correspond to the thickness of the insulation.

[0004] For this reason, the above-mentioned Japanese Utility Model Application Publication No. 55-15421 proposes a structure, as shown in Figure 2 and subsequent figures, which uses an insertion and fastening device consisting of a mounting main body consisting of a flat plate portion adhesively fixed to the wall surface of the duct and a pin erected therefrom, and a cap-shaped outer member which is fitted and fixed or screwed onto the tip of the pin, in which the sharp end of the pin, which has been inserted through insulation of a predetermined thickness, is fitted and fixed into or screwed onto a cylindrical latch receiving portion of a predetermined length on the outer member, thereby fixing and holding the insulation to the wall surface with the cap-shaped outer member.

[0005] However, even in the insertion and fastening device proposed in Japanese Utility Model Application Laid-Open Publication No. 55-15421, the mounting body and the outer member must be manufactured as separate members, which inevitably increases manufacturing costs. In addition to the problem of work safety due to the presence of sharp ends, even if the sharp ends of the pins that make up the mounting body are inserted into the insulation, if they are located inside the insulation, it may be difficult to fit or engage the sharp ends with the cylindrical latch receiving portion of the outer member, which creates an inherent problem of reducing the ease of installation of the insulation.

[0006] Furthermore, in the case where the mounting surface to which a heat insulating or sound absorbing material such as a thermal insulator or sound absorbing material is fixed is a conductive metal surface, as disclosed in JP 2019-38031 A and Japanese Patent No. 6393636 A, a conductive welding pin having a disk-shaped head and a rod-shaped leg standing on it is used to place the heat insulating or sound absorbing material on the mounting surface, and the leg of the welding pin is inserted into a predetermined position on the heat insulating or sound absorbing material, and electricity is passed through the welding pin to generate an arc between the tip of the leg and the metal mounting surface, thereby melting the tip of the leg and welding the tip portion to the metal mounting surface, a so-called Stud welding is also used to secure such heat insulating and sound absorbing materials to the desired mounting surface, but this method has the problem that the mounting surface for the heat insulating and sound absorbing material is basically limited to conductive metal surfaces. In addition, even if the metal surface is conductive, if there is a thick coating of resin or the like on the surface, the arc generation is insufficient and stud welding is difficult to perform effectively. Furthermore, stud welding requires a special welding gun and a dedicated current applying device, which increases the cost of installing the heat insulating and sound absorbing material and also requires attention to the safety of the work involved in applying current. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Utility Model Application Publication No. 55-15421 [Patent Document 2] Japanese Patent Application Publication No. 2019-38031 [Patent Document 3] Patent No. 6393636 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made in light of the above circumstances, and its object is to provide a fastener that can easily and safely fasten thermal insulation and sound absorption materials to a mounting surface. Another object is to provide a fastener that does not require special equipment to fasten thermal insulation and sound absorption materials, has a small number of parts, and is economically advantageous. A further object of the present invention is to provide a mounting structure that uses such a fastener to align and effectively fasten multiple thermal insulation and sound absorption materials to a target mounting surface. [Means for solving the problem]

[0009] In order to solve the above-mentioned problems, the present invention can be suitably implemented in various aspects as listed below, and the aspects described below can be adopted in any combination. It should be understood that the aspects and technical features of the present invention are not limited to those described below, but can be recognized based on the inventive idea disclosed in the entire description and drawings of the specification.

[0010] First, in order to solve the above-mentioned problems, the first aspect employed in the present invention is a fixture for fixing a rectangular block-shaped heat insulating and sound absorbing material of a predetermined thickness to a predetermined mounting surface, the fixture comprising an upper plate-shaped holding part that abuts against and presses down on an upper surface portion of a rectangular corner of the heat insulating and sound absorbing material, and a lower plate-shaped holding part that is positioned below and opposite the upper plate-shaped holding part at a predetermined distance and abuts against a lower surface portion of the rectangular corner of the heat insulating and sound absorbing material to sandwich the rectangular corner of the heat insulating and sound absorbing material between the upper plate-shaped holding part and the lower surface of the lower plate-shaped holding part that is fixed to the mounting surface. The gist of the invention is a fixing device for heat insulating and sound absorbing material, characterized in that it has at least one fixing member that is composed of a plate-shaped holding portion and two side wall portions arranged perpendicular to each other, the side wall portions being abutted against one side and the other side that form the rectangular corner of the heat insulating and sound absorbing material, and right-angled legs that connect the upper plate-shaped holding portion and the lower plate-shaped holding portion, integrally formed so that the corner of the heat insulating and sound absorbing material is accommodated and held within the inner space formed by the upper plate-shaped holding portion, the lower plate-shaped holding portion, and the right-angled legs.

[0011] In a second aspect of the present invention, the fixing member is an integrally molded resin product.

[0012] Furthermore, a third aspect of the present invention is characterized in that a plurality of the fixing members are detachably connected together at opposing portions of their respective lower plate-shaped holding portions in a configuration in which one of the two side wall portions constituting each of the right-angled legs is positioned opposite to each other.

[0013] In addition, a fourth aspect of the present invention is characterized in that the four fixing members are formed by gathering the orthogonal portions of the two side wall portions that make up each right-angled leg, and are arranged around the gathering point of the orthogonal portions with a phase difference of 90°, and are detachably connected together at the opposing portions of each lower plate-shaped holding portion.

[0014] A fifth aspect of the present invention is characterized in that a thin-walled portion is provided at the connecting portion that connects the opposing portions of the lower plate-shaped holding portions of the two connected fixing members, and the thin-walled portion is configured to make it easy to separate the fixing members.

[0015] In a sixth aspect of the present invention, the plurality of fixed members to be connected are configured as an integrally molded resin product.

[0016] Furthermore, a seventh aspect according to the present invention is characterized in that at least one of the two side wall portions constituting the right-angled leg portion of the fixing member is formed by arranging a plurality of strip-shaped plate portions extending at a predetermined width and spaced a predetermined gap from each other.

[0017] In addition, an eighth aspect of the present invention is characterized in that the side wall portions of the two connected fixing members that face each other and are positioned opposite each other are each constructed by arranging a plurality of strip-shaped plate portions extending at a predetermined width, spaced apart by a predetermined gap, and that when viewed from the front of the side wall portions, the strip-shaped plate portions that form the side wall portion of one fixing member are positioned in the gaps where the strip-shaped plate portions that form the side wall portion of the other fixing member are not arranged.

[0018] Furthermore, a ninth aspect of the present invention is characterized in that, at the connecting portion connecting the opposing portions of the lower plate-shaped holding portions of the two connected fixing members, a detachable groove portion is provided along the base of the strip-shaped plate portion on the side of the other fixing member that is outside the strip-shaped plate portion provided on one fixing member.

[0019] In a tenth aspect, the present invention provides an installation structure for thermal insulating and sound absorbing materials, characterized in that a plurality of rectangular block-shaped thermal insulating and sound absorbing materials of a predetermined thickness are aligned lengthwise and widthwise on a predetermined installation surface and attached to the installation surface, and each corner of the plurality of thermal insulating and sound absorbing materials is accommodated and held within an inner space formed by the upper plate-shaped holding portion, the lower plate-shaped holding portion and the right-angled leg portion using a fixing device described in any one of the first to ninth aspects, while the lower surface of the lower plate-shaped holding portion is fixed to the installation surface, thereby installing the thermal insulating and sound absorbing materials.

[0020] Furthermore, an eleventh aspect of the present invention is characterized in that at the corner assembly portion where the corners of the four thermal insulating and acoustical materials come together due to the aligned arrangement, the corners of the four thermal insulating and acoustical materials are each fixed using the fixing device described in the fourth aspect, which is formed by integrally connecting four of the fixing members.

[0021] Furthermore, a twelfth aspect of the present invention is characterized in that at the corner gathering portion where the corners of the three thermal insulating and acoustical materials come together due to the aligned arrangement, the corners of the three thermal insulating and acoustical materials are fixed using fixing devices that gather the orthogonal portions of the two respective side wall portions, arrange them around the gathering portion with a phase difference of 90°, and integrally connect the opposing portions of each lower plate-shaped holding portion.

[0022] In addition, a thirteenth aspect of the present invention is characterized in that at the corner gathering portion where the corners of the two thermal insulating and acoustical materials come together due to the aligned arrangement, the corners of the two thermal insulating and acoustical materials are fixed using fixing devices that gather the orthogonal portions of the two respective side wall portions, arrange them around the gathering portion with a phase difference of 90°, and integrally connect the opposing portions of each lower plate-shaped holding portion.

[0023] A fourteenth aspect of the present invention is a method for placing a rectangular block-shaped heat insulating and sound absorbing material of a predetermined thickness on a predetermined mounting surface and attaching it to the mounting surface, comprising the steps of: using a fastener according to any one of the first to ninth aspects, placing and fixing the fastener at a predetermined portion of the mounting surface where a corner of the heat insulating and sound absorbing material will be located; and attaching the heat insulating and sound absorbing material to the mounting surface by accommodating and holding the corresponding corner of the heat insulating and sound absorbing material within an inner space formed by the upper plate-shaped holding portion, the lower plate-shaped holding portion, and the right-angled upper leg portion of the fixed fastener.

[0024] Furthermore, in a fifteenth aspect according to the present invention, the fixing of the fixing device to the mounting surface is carried out by adhering the lower surface of the lower plate-shaped holding portion of the fixing device to the mounting surface using an adhesive. [Effects of the Invention]

[0025] In this way, the fixing device for heat insulating and sound absorbing material according to the present invention is constructed from at least one fixing member in which the upper plate-shaped holding portion, the lower plate-shaped holding portion, and the right-angled legs are integrated into one single member, and the corners of the heat insulating and sound absorbing material are accommodated and held within the inner space formed by the upper plate-shaped holding portion, the lower plate-shaped holding portion, and the right-angled legs.Since this means that the corners of the heat insulating and sound absorbing material can basically be fixed with one member, it is possible to advantageously reduce the number of parts.

[0026] Furthermore, since the fixing member of such a fixing device can be fixed to the mounting surface simply by adhering the lower surface of the lower plate-shaped holding part to the mounting surface with adhesive or the like, the corners of the thermal insulating and sound absorbing material can be fixed easily and safely using the fixing member without using any special equipment, which makes it possible to fix or install the thermal insulating and sound absorbing material in an economical manner while improving workability. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is an explanatory plan view showing an example of a fixing device for a heat insulating and sound absorbing material according to the present invention. [Figure 2] 2 is a front explanatory view (including a partially enlarged explanatory view) of the fixing device for heat insulating and sound absorbing materials shown in FIG. 1. FIG. [Figure 3] 2 is a perspective explanatory view of the fixing device for a heat insulating and sound absorbing material shown in FIG. 1. [Figure 4] 2 is a perspective explanatory view of the fixture for heat insulating and sound absorbing materials shown in FIG. 1, showing a state in which the upper plate-shaped holding part is absent. FIG. [Figure 5] 2A, 2B, and 2C are perspective explanatory views showing examples of different numbers of fixing members obtained by cutting out the fixing device for thermal insulation and sound absorption material shown in FIG. 1, where (a), (b), and (c) show examples of fixing devices according to the present invention consisting of one, two, and three fixing members, respectively. [Figure 6] 2 is an explanatory diagram showing the planar configuration of another example of a fixture for thermal insulation and sound absorption materials according to the present invention, which has a different configuration of right-angled legs from the fixture for thermal insulation and sound absorption materials shown in FIG. 1. FIG. [Figure 7] 7 is an explanatory diagram (including a partially enlarged explanatory view) showing the front configuration of the fixing device for heat insulating and sound absorbing materials shown in FIG. 6. [Figure 8] FIG. 7 is a perspective explanatory view of the fixing device for a heat insulating and sound absorbing material shown in FIG. 6. [Figure 9] 7 is an explanatory plan view showing a configuration in which the upper plate-shaped holding part is absent in the fixing device for heat insulating and sound absorbing materials shown in FIG. 6. FIG. [Figure 10] 1 is an explanatory plan view showing a configuration in which four aligned heat and sound absorbing materials are fixed at their corners with fasteners according to the present invention. [Figure 11] 10A and 10B are perspective explanatory views showing the fixing structure of the two corners where two heat insulating and sound absorbing materials are gathered in the fixing form of the aligned heat insulating and sound absorbing materials shown in FIG. 10A, where (a) and (b) show a form in which the materials are fixed using fixing members having different right-angle leg structures. [Figure 12]11A to 11C are perspective explanatory views showing the fixing structure of the isolated corners of the aligned heat insulating and sound absorbing materials in the fixing form of the heat insulating and sound absorbing materials shown in Figure 10, where (a) to (c) show forms in which the materials are fixed using fixing members having different right-angle leg structures. DETAILED DESCRIPTION OF THE INVENTION

[0028] In order to clarify the configuration of the present invention more specifically, a representative embodiment of the present invention will be described in detail below with reference to the drawings.

[0029] 1 to 4 show an example of a fastener for thermal insulation and sound absorption material according to the present invention. Fastener 10, which is used when installing a rectangular block of thermal insulation and sound absorption material of a predetermined thickness on a mounting surface such as the interior wall of a building, is configured as a single unit by detachably connecting four caps 12a to 12c, each of which has the same structure and serves as a fixing member, to opposing portions of respective bottom plates 16a to 16d.

[0030] That is, the four caps 12a to 12d that make up the fixing device 10 each function as the fixing member of the present invention, and are all formed as a one-piece resin molded product consisting of upper plates 14a to 14d that are quarter-circular and correspond to the upper plate-shaped holding portion, lower plates 16a to 16d that are rectangular in plan view and correspond to the lower plate-shaped holding portion and are located below and spaced a predetermined distance from the upper plates 14a to 14d, and L-shaped leg portions 18a to 18d that are right-angled in plan view and connect the upper plates 14a to 14d and the lower plates 16a to 16d.

[0031] More specifically, each of the caps 12a to 12d has a quarter-circular shape formed by dividing a circle into four equal parts by two perpendicular diameters. Two sides (ends) of the upper plates 14a to 14d that intersect at right angles on the quarter-circular shape and two adjacent sides (ends) of the corresponding lower plates 16a to 16d define the L-shape of the L-shaped legs 18a to 18d by two side walls 18a1, 18a2; side walls 18b1, 18b2; side walls 18c1, 18c2; and side walls 18d1, 18d2. The caps 12a to 12d have a shape in which they are connected to one another, and each of the lower plates 16a to 16d of each of the caps 12a to 12d has a plurality of through holes 17a to 17d, respectively. When each of the caps 12a to 12d is adhesively fixed to the target mounting surface on the lower surface of each of the lower plates 16a to 16d, the adhesive penetrates into each of the through holes 17a to 17d and hardens, thereby further improving the fixing effect achieved by the adhesive.

[0032] As shown in FIG. 2, there are predetermined gaps between the opposing side walls 18a1 and 18d2, 18a2 and 18b1, 18b2 and 18c1, and 18c2 and 18d1 of the L-shaped legs 18a to 18d of the four caps 12a to 12d that make up the fixture 10. The opposing ends of the lower plates 16a to 16d are connected to close the lower part of the gap, forming a single lower plate member, and the caps 12a to 12d are integrated together. At the connecting portions located in such gaps, a V-shaped groove 19 is provided in the direction in which the gap extends (perpendicular to the paper in Figure 2), making it a thin-walled portion, thereby allowing the lower plates 16a and 16b on both sides, the lower plates 16b and 16c, the lower plates 16c and 16d, and the lower plates 16d and 16a to be easily separated.

[0033] In short, as shown in the figure, the fastener 10 is configured such that the four caps 12a to 12d are formed by gathering together the orthogonal portions of the two side wall portions 18a1, 18a2; 18b1, 18b2; 18c1, 18c2; 18d1, 18d2 that make up each of the L-shaped legs 18a to 18d, and are arranged with a phase difference of 90° around the gathering point of these orthogonal portions, and are detachably connected together at the opposing portions of each of the lower plates 16a to 16d, i.e., at the two sides of the lower plates located at the lower ends of the two side wall portions, respectively.

[0034] 1 and 3, in fastener 10, which is formed by interconnecting and integrating caps 12a-12d configured as described above, a single large circular upper plate member is formed as a whole by a collection of individual upper plates 14a-14d, while a large rectangular lower plate member is formed by lower plates 16a-16d, into which the circular shape of the upper plate member is inscribed. Note that, here, because lower plates 16a-16d are rectangular, a large adhesive area can be secured to the mounting surface, thereby enabling a large adhesive force to be exerted.

[0035] Furthermore, among caps 12a to 12d, for example, in cap 12a, the corners of the heat insulating and sound absorbing material are accommodated and held within the internal space formed by its upper plate 14a, lower plate 16a, and L-shaped leg portion 18a, as described below, thereby achieving fixation. In this case, upper plate 14a has the function of abutting against the upper surface of the rectangular corner of the heat insulating and sound absorbing material to hold it in place, and lower plate 16a has its underside adhered and fixed to the target mounting surface with an adhesive or the like, and abuts against the lower surface of the rectangular corner of the heat insulating and sound absorbing material to sandwich the rectangular corner of the heat insulating and sound absorbing material between itself and upper plate 14a. Furthermore, the L-shaped leg 18a has two orthogonal side walls 18a1 and 18a2 that are brought into contact with one side and the other side that form the rectangular corners of the heat insulating and sound absorbing material, respectively, so as to hold the corners of the heat insulating and sound absorbing material. Note that the other three caps 12b, 12c, and 12d are also configured to have the function of holding the corners of the heat insulating and sound absorbing material, just like the cap 12a described above.

[0036] Furthermore, by using the fixing device 10, which is made up of four caps 12a to 12d connected together as shown in the figure, it is possible to gather the corners of the four thermal insulation and sound absorption materials together and fix and hold the four corners all at once, thereby enjoying the advantage of being able to efficiently install multiple thermal insulation and sound absorption materials.

[0037] When fixing the corners of the target thermal insulating and sound absorbing material using fixing device 10 equipped with such caps 12a to 12d, an advantageous method is to first adhere and fix fixing device 10 to a predetermined position on the mounting surface, and then fit the corners of the thermal insulating and sound absorbing material into caps 12a to 12d to fix and hold them. However, other methods may be used, such as adhering and fixing fixing device 10 to a predetermined position on the mounting surface after the corners of the thermal insulating and sound absorbing material are contained and held within cap 12a, or combining these two methods to fix and hold a plurality of aligned thermal insulating and sound absorbing materials. In any of these methods, fixing the corners of the thermal insulating and sound absorbing material with caps 12a, etc. can be done simply and easily, which improves workability and makes it possible to fix or install the thermal insulating and sound absorbing material in an economical manner.

[0038] Furthermore, in the fixing device 10, the caps 12a to 12d serving as fixing members are each formed by integrating the upper plates 14a to 14d, the lower plates 16a to 16d, and the L-shaped portions 18a to 18d into a single member by an integral resin molding operation or the like. Therefore, the corners of the heat insulating and sound absorbing material can basically be fixed with a single member, which reduces the number of parts as much as possible and makes it possible to provide an economically advantageous fixing device.

[0039] Furthermore, the caps 12a to 12d in such a fixture 10 do not fasten the heat insulating and sound absorbing material by inserting it into a pin erected on the mounting surface, as in the past, and therefore completely eliminate the safety issues of workers being injured by the sharp ends of such pins. In addition, unlike the method of fastening the heat insulating and sound absorbing material by stud welding a welding pin to a conductive mounting surface, it is possible to fasten the heat insulating and sound absorbing material even when the mounting surface is made of a non-conductive material such as plastic, and it does not require means or devices such as a specific welding gun or the energizing device for that, which increase fixed costs, and this can advantageously contribute to reducing the cost of installing the heat insulating and sound absorbing material and improving work safety.

[0040] In the above-described exemplary fastener 10, the four caps 12a to 12d are connected together to form a single fixed member; however, as shown in FIG. 5(a), it is also possible to use fastener 10' consisting of only one cap (e.g., 12d), as shown in FIG. 5(b), it is also possible to use fastener 10'' consisting of two caps (e.g., 12c and 12d) connected with a 90° phase difference, and further, it is also possible to use fastener 10''' consisting of three caps (e.g., 12b, 12c, and 12d) connected with a 90° phase difference, as shown in FIG. 5(c). Furthermore, fixtures 10', 10'', and 10''' having one, two, or three of these caps can be produced by cutting off only one cap (12d) from the fixture 10 described above at the V-groove 19 provided at the connecting portion of the caps 12a to 12d, or by cutting off two caps (12c, 12d) from the other two caps, and further, three connected caps (12b, 12c, 12d) can be produced by cutting off and removing only one cap (12a).

[0041] In short, in fastener 10, which is formed by integrally connecting four caps 12a-12d as shown in FIGS. 1-3, an operator can apply force with both hands to adjacent caps (e.g., 12a and 12b, 12b and 12c, etc.) so that the gap between the opposing side walls of the two adjacent caps is widened, and the adjacent caps are bent at the connecting portion of the two caps, in other words, at the location where V-groove 19 is provided. This allows the adjacent caps to be separated, and fastener 10'-10''' having one or more caps can be easily obtained. In this case, the presence of thin-walled portions (V-grooves 19) at the connecting portions of caps 12a-12d makes the above-described bending and separating operations even easier.

[0042] These fixing devices 10', 10'', 10''', 10 are used to fix an isolated corner or a group of two, three, or four corners of a plurality of thermal and sound-absorbing materials aligned on a specified mounting surface.

[0043] When a plurality of rectangular block-shaped thermal insulating and sound absorbing materials of a predetermined thickness are aligned or arranged lengthwise and breadthwise on a predetermined mounting surface and attached to such a mounting surface, at the corner gathering points where the corners of the thermal insulating and sound absorbing materials come together, two of the opposing side wall portions of the L-shaped legs 18a to 18d that make up the caps 12a to 12d are present, along with a gap formed between them, so in the present invention, a resin fixing device 20 that is integral with the caps 12a to 12d having an L-shaped leg structure, as shown in Figures 6 to 9, is advantageously used so that the gap between adjacent thermal insulating and sound absorbing materials can be reduced as much as possible.

[0044] 6 to 9 is an integrally molded resin product having a structure in which four of the caps 12a to 12d described above are integrally connected to secure the corners of four aligned and arranged thermal and acoustic insulation materials at the corner assembly portions where the corners of those four aligned and arranged thermal and acoustic insulation materials meet, similar to the previous fastener 10. However, unlike the previous fastener 10, it is characterized in that it employs a plate lattice window-like sidewall structure in the right-angled legs 22a to 22d that connect the upper plates 14a to 14d and the lower plates 16a to 16d. Note that in the illustrated fastener 20, parts that are similar to those in the previous fastener 10 are designated by the same numbers, and detailed explanations thereof will be omitted.

[0045] 7 to 9, the right-angled legs 22a to 22d connecting the upper plates 14a to 14d and the lower plates 16a to 16d of the fixture 20 are provided with two or three side wall portions arranged in a plate lattice window shape, each of which is made up of two or three plate-like strip walls 24a to 24d extending a predetermined width in the vertical direction, and which are arranged in a perpendicular configuration. As is clear from FIGS. 7 and 9, the plate-like strip walls 24a to 24d are configured such that, in a front view of such side wall portions, a strip wall constituting one side wall portion is located in a gap where a strip wall constituting the other side wall portion is not located.

[0046] Specifically, in these figures, the two strip-shaped walls 24d of one side wall that provides the right-angled leg 22d of cap 12d are positioned in the two gaps formed between the three strip-shaped walls 24a that constitute one side wall of the right-angled leg 22a of cap 12a, and the three strip-shaped walls 24b that constitute the side wall that provides the right-angled leg 22b of cap 12b are positioned in the three gaps formed by the two strip-shaped walls 24a that constitute the other side wall of the right-angled leg 22a. Similarly, in the opposing side wall portions of caps 12b and 12c, and in the opposing side wall portions of caps 12c and 12d, the strip-shaped wall 24c of cap 12c is positioned within the two gaps formed by the three strip-shaped walls 24b, and further, the strip-shaped wall 24c of cap 12c is positioned within the two gaps formed by the three strip-shaped walls 24d that constitute the other side wall portion of cap 12d.

[0047] By forming each side wall portion of each of the right-angled legs 22a to 22d of the caps 12a to 12d using such multiple strip-shaped walls 24a to 24d, as is clear from the enlarged view in Figure 7 and Figure 9, the strip-shaped walls 24c of one cap 12c are arranged to fit between the strip-shaped walls 24d of the other cap 12d, and each strip-shaped wall 24c, 24d is arranged to overhang the V-groove 19, as shown enlarged in Figure 7, thereby effectively reducing the overall thickness of the opposing side wall portions of two caps, for example caps 12a and 12b, which fit between adjacent thermal insulating and acoustical materials, and thereby advantageously reducing or eliminating gaps between aligned thermal insulating and acoustical materials.

[0048] 10 to 12 show examples of fixing a plurality of heat and sound insulating materials using a fixing device 20 having such a configuration.

[0049] Figure 10 is an explanatory plan view showing a configuration in which four pieces of thermal insulating and sound absorbing material 30 in the shape of a rectangular block and of a predetermined thickness, having a size specified by the JIS standard, are aligned and arranged vertically and horizontally, and each corner is fixed using fixing devices 20, 20', 20'' (having one, two or four caps 12a to 12d).The central portion where the corners of the four thermal insulating and sound absorbing materials 30 are concentrated is fixed to the flat mounting surface 34 of the mounting base material 32 by fixing device 20 having four caps 12a to 12d shown in Figures 6 to 9, and at the four locations where the corners of two thermal insulating and sound absorbing materials 30 meet, those two corners are fixed using fixing device 20'' having two of the caps 12a to 12d. Furthermore, the four isolated corners of the four heat and sound absorbing materials 30 are fixed to the mounting surface 34 by a fastener 20' equipped with one of the caps 12a to 12d. The fasteners 20, 20', and 20'' are fixed to the mounting surface 34 by using an adhesive between the lower surface of each of the lower plates 16a to 16d and the mounting surface 34.

[0050] Here, the heat insulating and sound absorbing material 30 can be attached by fitting and accommodating the corners of the corresponding heat insulating and sound absorbing material 30 into the inner space surrounded by the upper plates 14a to 14d, lower plates 16a to 16d and right-angled legs 22a to 22d of each cap 12a to 12d of the fixing devices 20, 20', 20'' thus bonded and fixed.

[0051] Incidentally, in the mounting structure for a plurality of thermal and acoustic insulation materials 30 shown in Figure 10, Figures 11(a) and (b) each show, in perspective views, a structure in which two convergent corners of adjacent thermal and acoustic insulation materials 30, 30 are fixed using a fastener 20'' consisting of a combination of two different caps 12a to 12d. Specifically, Figure 11(a) shows an example in which a fastener 20'' having two caps 12c and 12d is used to fix and hold the two convergent corners, and Figure 11(b) shows an example in which a fastener 20'' having caps 12a and 12b is used to fix and hold the two convergent corners in a similar manner.

[0052] 12(a) to 12(c) are perspective views showing how an isolated corner of a thermal insulating and sound absorbing material 30 aligned on a mounting surface 34 of a mounting base 32 is fixed using a fixing device 20' having one of the caps 12a to 12d. That is, in FIG. 12(a), one isolated corner of the aligned thermal insulating and sound absorbing materials 30 is fixed on the mounting surface 34 by a fixing device 20' having only the cap 12c, while in FIG. 12(b), the isolated corner is fixed on the mounting surface 34 by a fixing device 20' having only the cap 12a. Furthermore, FIG. 12(c) is a perspective view showing how one isolated corner of aligned thermal insulating and sound absorbing materials 30 is fixed by a fixing device 20' having only the cap 12b.

[0053] Although typical embodiments of the present invention have been described above in detail, it should be understood that these are merely examples and that the present invention should not be construed as being limited in any way by the specific descriptions of such embodiments.

[0054] For example, the fasteners 10, 10', 10'', 10'''', 20, etc. for heat insulating and sound absorbing materials according to the present invention can be advantageously manufactured by a one-piece molding method using resin, but of course there are no restrictions on the material, and it is also acceptable to use materials other than resin, and to manufacture them by other known manufacturing methods other than the one-piece molding method, and it is also acceptable to manufacture an integrated product by connecting specified parts.

[0055] The size of the rectangular block-shaped heat insulating and sound absorbing material 30 of a predetermined thickness, which is fixed and held by the fixing devices 10 and 20 according to the present invention, is determined by the JIS standard and is in the range of 605 to 1810 mm, for example, 605 mm x 910 mm, and thicknesses of 25 mm, 50 mm, 100 mm, etc. are used as appropriate depending on the application.

[0056] It goes without saying that the fixing device (10, 20) according to the present invention can be used when multiple heat insulating and sound absorbing materials 30 are aligned and arranged not only when they are all the same size as shown in Figure 10, but also when materials of different sizes are combined and aligned.

[0057] In order to effectively fix and hold such heat insulating and sound absorbing material 30 using fixing devices 10, 20 according to the present invention, the distance (inside dimension) between upper plate 14a and lower plate 16a is generally determined appropriately by adding a dimension that will create a clearance of approximately 1 mm or less, for example 0.5 mm, to the thickness of such heat insulating and sound absorbing material 30 so that the corners of the heat insulating and sound absorbing material 30 can be fitted between them and advantageously fixed and held therebetween.

[0058] Furthermore, in the method of fixing the fixing devices 10, 20 to the predetermined mounting surface 34, it is possible to use not only a method of using an adhesive to bond the mounting surface 34 to the lower surface of the lower plate 16a to 16d, but also a method of using double-sided tape to bond them, and furthermore, fixing methods using other known fastening or fixing means can also be appropriately used.

[0059] Furthermore, in the illustrated embodiment, V-shaped grooves 19 are provided at the connecting portions connecting the opposing portions of the lower plates 16a-16d of the caps 12a-12d in the fasteners 10, 20 to form thin portions, but such thin portions can also be formed by stepped grooves or U-shaped grooves.Furthermore, instead of such thin portions, it is also possible to provide intermittent slits at the connecting portions connecting the opposing portions of the lower plates 16a-16d to make it easier to separate the connecting portions of the opposing lower plates 16a-16d.Of course, it is also possible to separate the caps 12a-12d by cutting the connecting portions connecting the opposing portions of the lower plates 16a-16d using a known cutting means without providing the above-mentioned thin portions.

[0060] Furthermore, there are no particular limitations on the width or number of the strip-shaped walls 24a to 24d in the fixtures 20, 20', 20'', ... according to the present invention, and the strip-shaped walls 24a to 24d can be provided in any appropriate width and number.

[0061] In addition, when fixing each corner of a plurality of aligned heat insulating and sound absorbing materials 30 to a predetermined position on the mounting surface 34, it is desirable to use fixing devices 10, 10', ..., 20, 20', ... etc. having corresponding caps, as shown in the example, to fix the plurality of corners that come together, but it is also possible to fix each of the plurality of corners that come together using fixing devices 10', 20' having simply one cap.

[0062] Although not listed here, the present invention can be implemented in various forms with various changes, modifications, improvements, etc. based on the knowledge of those skilled in the art, and it goes without saying that all such implementation forms fall within the scope of the present invention as long as they do not deviate from the spirit of the present invention. [Explanation of symbols]

[0063] 10,10',10'',10''' Fixture 12a, 12b, 12c, 12d Caps 14a, 14b, 14c, 14d Upper plate 16a,16b,16c,16d Lower plate 18a,18b,18c,18d L-shaped legs 18a1,18a2 Side wall part 18b1,18b2 Side wall part 18c1,18c2 Side wall part 18d1,18d2 Side wall part 19 V groove 20,20',20'',20''' Fixture 22a,22b,22c,22d Right angle leg 24a, 24b, 24c, 24d Strip-shaped walls 30 Heat insulation and sound absorption materials 32 Mounting base material 34 Mounting surface

Claims

1. A fixture for fixing a rectangular block-shaped heat insulating and sound absorbing material of a predetermined thickness to a predetermined mounting surface, an upper plate-shaped holding portion that abuts against and holds an upper surface portion of the rectangular corner of the heat insulating and sound absorbing material; a lower plate-shaped holding portion positioned below and facing the upper plate-shaped holding portion at a predetermined distance, abutting against the lower surface of the rectangular corner of the heat insulating and sound absorbing material to sandwich the rectangular corner of the heat insulating and sound absorbing material between the upper plate-shaped holding portion and the lower plate-shaped holding portion, and fixed at its underside to the mounting surface; The heat insulating and sound absorbing material is made of two side wall portions arranged perpendicular to each other, and the side wall portions are respectively abutted against one side surface and the other side surface that form the rectangular corner portion of the heat insulating and sound absorbing material, and a right-angled leg portion that connects the upper plate-shaped holding portion and the lower plate-shaped holding portion, A fixing device for heat insulating and sound absorbing material, characterized in that it has at least one fixing member that is integrally formed and configured so that the corners of the heat insulating and sound absorbing material are accommodated and held within the inner space formed by the upper plate-shaped holding portion, the lower plate-shaped holding portion, and the right-angled leg portion.

2. 2. The fixing device for heat insulating and sound absorbing materials according to claim 1, wherein the fixing member is formed as a one-piece molded product made of resin.

3. 2. The fixture for heat insulating and sound absorbing materials according to claim 1, wherein the plurality of fixing members are detachably connected together at opposing positions of the lower plate-shaped holding portions, with one of the two side wall portions constituting each of the right-angled legs being positioned opposite to each other.

4. The fixing device for heat insulating and sound absorbing materials according to claim 1, characterized in that the four fixing members are formed by gathering the orthogonal portions of the two side wall portions that constitute each of the right-angled legs, and are arranged around the gathering point of the orthogonal portions with a phase difference of 90°, and are detachably connected together at opposing portions of each of the lower plate-shaped holding portions.

5. 5. The fastener for heat insulating and sound absorbing materials according to claim 3 or 4, characterized in that a thin-walled portion is provided at a connecting portion that connects the opposing portions of the lower plate-shaped holding portions of the two connected fixing members, and the fixing members are configured to be easily separated at the thin-walled portion.

6. 5. The fixture for heat insulating and sound absorbing materials according to claim 3, wherein the plurality of connecting fixing members are formed as an integrally molded resin product.

7. 2. The fixing device for heat insulating and sound absorbing materials according to claim 1, characterized in that at least one of the two side wall portions constituting the right-angled leg portion of the fixing member is formed by arranging a plurality of strip-shaped plate portions extending with a predetermined width at predetermined intervals from each other.

8. 5. The fixing device for heat insulating and sound absorbing materials according to claim 3 or 4, characterized in that the side wall portions of the two connecting fixing members that are opposed to each other are each formed by arranging a plurality of strip-shaped plate portions extending with a predetermined width at predetermined intervals from each other, and that, when viewed from the front of the side wall portions, the strip-shaped plate portions that constitute the side wall portion of one fixing member are located in gaps where no strip-shaped plate portions are arranged that constitute the side wall portion of the other fixing member.

9. 9. A fixing device for heat insulating and sound absorbing materials according to claim 8, characterized in that at a connecting portion that connects the opposing portions of the lower plate-shaped holding portions of the two fixing members to be connected, a detachable groove portion is provided along the base of the strip-shaped plate portion on the side of the other fixing member that is outside the strip-shaped plate portion provided on one fixing member.

10. A structure in which a plurality of rectangular block-shaped heat insulating and sound absorbing materials of a predetermined thickness are aligned lengthwise and widthwise on a predetermined mounting surface and attached to the mounting surface, A mounting structure for heat insulating and sound absorbing materials, characterized in that each corner of the plurality of heat insulating and sound absorbing materials is accommodated and held within an inner space formed by the upper plate-shaped holding portion, the lower plate-shaped holding portion, and the right-angled leg portion using a fixing device as described in any one of claims 1 to 9, while the lower surface of the lower plate-shaped holding portion is fixed to the mounting surface, thereby mounting the materials.

11. 11. The mounting structure for heat insulating and sound absorbing materials as described in claim 10, characterized in that at the corner assembly portion where the corners of the four heat insulating and sound absorbing materials come together due to the aligned arrangement, the corners of the four heat insulating and sound absorbing materials are each fixed using the fixing device described in claim 4, which is formed by integrally connecting four of the fixing members.

12. 11. The mounting structure for heat insulating and sound absorbing materials according to claim 10, characterized in that at the corner assembly portion where the corners of the three heat insulating and sound absorbing materials come together by the aligned arrangement, the corners of the three heat insulating and sound absorbing materials are fixed using fixing devices that assemble the three fixing members at the orthogonal portions of the two side wall portions of each of the fixing members and arrange them around the assembly portion with a phase difference of 90°, and that are integrally connected at opposing portions of each lower plate-shaped holding portion.

13. 11. The mounting structure for heat insulating and sound absorbing materials as described in claim 10, characterized in that at the corner gathering portion where the corners of the two heat insulating and sound absorbing materials come together due to the aligned arrangement, the corners of the two heat insulating and sound absorbing materials are fixed using fasteners that gather the perpendicular portions of the two side wall portions of each of the fixing members, arrange them around the gathering portion with a phase difference of 90°, and integrally connect the opposing portions of each lower plate-shaped holding portion.

14. A method for attaching a rectangular block-shaped heat insulating and sound absorbing material of a predetermined thickness to a predetermined mounting surface, the method comprising: a step of using the fixing device according to any one of claims 1 to 9, and placing the fixing device at a predetermined portion of the mounting surface where a corner of the heat insulating and sound absorbing material is located, and fixing the fixing device; a step of attaching the heat insulating and sound absorbing material to the mounting surface by accommodating and holding the corresponding corners of the heat insulating and sound absorbing material within an inner space formed by the upper plate-shaped holding portion, the lower plate-shaped holding portion, and the right-angled upper leg portion of the fixed fixture; A method for installing heat insulating and sound absorbing material, comprising:

15. 15. The method for installing a heat insulating and sound absorbing material according to claim 14, wherein the fixing device is fixed to the mounting surface by adhering the lower surface of the lower plate-shaped holding portion of the fixing device to the mounting surface using an adhesive.

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