Ceiling insulation structure and its construction method

Abstract

To provide a ceiling insulation structure and a construction method therefor that allows for the reliable installation of insulation panels in a ceiling structure utilizing existing C-shaped steel beams of a roof purlin. [Solution] A panel support piece 2 is housed between the web 11 and the lower lip 13D of the C-shaped steel 1, and one end of the heat insulating panel 3 inserted through the opening 14 of the C-shaped steel 1 can be placed on the upper surface 21 of the panel support piece 2. A panel receiver 4 is fixed to the outer surface of the web 11 of the C-shaped steel 1, and the other end of the heat insulating panel 3 is placed on the upper surface 41 of the panel receiver 4, thereby enabling the heat insulating panel 3 to be erected between the C-shaped steel 1s. A suspension device 51 is installed at a position on the lower lip portion 13D of the C-shaped steel 1 different from the housing position of the panel support piece 2, so that the object to be suspended 5 can be suspended from the lower end of the suspension device 51.

Description

Technical Field

[0001] The present invention relates to an improvement of a ceiling structure, and more particularly to a heat insulation structure of a ceiling and a construction method thereof in which a heat insulation panel can be reliably installed in a ceiling structure using existing C-shaped steel of a roof attic.

Background Art

[0002] There is known a ceiling structure in which a hanging tool is fixed to existing C-shaped steel used for a roof attic of a building, and a ceiling material such as a panel is horizontally suspended as a suspended object at the lower end thereof to form a ceiling (see, for example, Patent Document 1). In order to ensure heat insulation in the room, it is necessary to install a heat insulation material on the ceiling, walls, floor, etc.

[0003] Conventionally, in order to install a heat insulation material on a ceiling, a structure for fixing the heat insulation material using existing C-shaped steel has been disclosed (see, for example, Patent Document 2). However, in this roof structure, since a panel-shaped heat insulation material is inserted from an opening of the C-shaped steel and sandwiched and fixed between upper and lower lips, there is a problem that a hanging tool for a suspended object cannot be installed on the lower lip of the C-shaped steel.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made in view of the above problems in the prior art, and an object thereof is to provide a heat insulation structure of a ceiling and a construction method thereof in which a heat insulation panel can be reliably installed in a ceiling structure using existing C-shaped steel of a roof attic. [Means for solving the problem]

[0006] The means employed by the present inventor to solve the above technical problems will be described below with reference to the attached drawings.

[0007] In other words, the present invention provides a ceiling structure in which a heat insulating panel 3 and a suspended object 5 can be installed in a roof purlin in which a plurality of C-shaped steel beams 1 are arranged in parallel, The C-shaped steel 1 is formed by creating an upper flange 12U and a lower flange 12D laterally from the upper and lower ends of the web 11, and forming an upper lip 13U and a lower lip 13D at the ends of these upper flanges 12U and 12D, respectively. A panel support piece 2 is housed between the web 11 and the lower lip 13D of the C-shaped steel 1, and one end of the heat-insulating panel 3 inserted through the opening 14 of the C-shaped steel 1 can be placed on the upper surface 21 of the panel support piece 2. The panel support 4 is fixed to the outer surface of the web 11 of the C-shaped steel 1, and the other end of the insulation panel 3 is placed on the upper surface 41 of the panel support 4, thereby enabling the insulation panel 3 to be erected between the C-shaped steel 1s. The ceiling insulation structure was completed by employing a technical means that involves installing a suspension device 51 at a position different from the housing position of the panel support piece 2 on the lower lip portion 13D of the C-shaped steel 1, thereby enabling the suspended object 5 to be suspended from the lower end of the suspension device 51.

[0008] Furthermore, in order to solve the above problems, the present invention, in addition to the above means as necessary, makes the panel support piece 2 a bent plate body in which the lower side is tapered and widened by an elastic material. It is also possible to employ a technical means that allows the C-shaped steel 1 to be accommodated between the web 11 and the lower lip 13D while under biasing force due to elastic restoring force.

[0009] Furthermore, in order to solve the above problems, the present invention may also employ, if necessary, a technical means of forming an inclined portion 21A on the upper surface 21 of the panel support piece 2 to reduce the closed portion of the opening 14 of the C-shaped steel 1, in addition to the above means.

[0010] Furthermore, in order to solve the above problems, the present invention may also employ, if necessary, a technical means of forming an upright portion 42p in the panel support 4 such that the distance from the lower surface of the lower flange 12D of the C-shaped steel 1 to the upper surface 21 of the panel support piece 2 when the panel support piece 2 is housed is substantially the same as the distance from the lower surface of the lower flange 12D of the C-shaped steel 1 to the upper surface 41 of the panel support 4.

[0011] Furthermore, the present invention relates to a method for constructing a ceiling structure in which an insulating panel 3 and a suspended object 5 are installed in a roof purlin where a plurality of C-shaped steel beams 1 are arranged in parallel, The C-shaped steel 1 has an upper flange 12U and a lower flange 12D formed laterally from the upper and lower ends of the web 11, and an upper lip 13U and a lower lip 13D are formed at the ends of these upper flanges 12U and 12D, respectively. The panel support piece 2 is housed between the web 11 and the lower lip 13D of the C-shaped steel 1, and the heat insulating panel 3 is inserted through the opening 14 of the C-shaped steel 1, with one end of the heat insulating panel 3 resting on the upper surface 21 of the panel support piece 2. After lifting the other end of the insulation panel 3, the panel support 4 is fixed to the outer surface of the web 11 of the C-shaped steel 1, and the other end of the insulation panel 3 is placed on the upper surface 41 of the panel support 4, thereby installing the insulation panel 3 between the C-shaped steel 1. By employing a technical means of installing a suspension device 51 at a position different from the housing position of the panel support piece 2 on the lower lip portion 13D of the C-shaped steel 1, and suspending the object to be suspended 5 from the lower end of the suspension device 51, the construction method for the ceiling insulation structure was completed. [Effects of the Invention]

[0012] In the present invention, in a roof purlin where a plurality of C-shaped steel beams are arranged in parallel, a ceiling structure is provided on which an insulating panel and a suspended object can be installed. A panel support piece is housed between the web and the lower lip of the C-shaped steel beam, and one end of the insulating panel inserted through the opening of the C-shaped steel beam can be placed on the upper surface of the panel support piece. A panel receiver is fixed to the outer surface of the web of the C-shaped steel beam, and the other end of the insulating panel can be placed on the upper surface of the panel receiver, thereby enabling the insulating panel to be erected between the C-shaped steel beams. Furthermore, by installing a suspension device at a position different from the housing position of the panel support piece on the lower lip of the C-shaped steel beam, the suspended object can be suspended from the lower end of the suspension device.

[0013] Therefore, the ceiling insulation structure and construction method of the present invention have high industrial value because insulation panels can be reliably installed in a ceiling structure that utilizes existing C-shaped steel purlins. [Brief explanation of the drawing]

[0014] [Figure 1] This is an overall explanatory cross-sectional view showing the ceiling structure of an embodiment of the present invention. [Figure 2] This is an enlarged explanatory cross-sectional view showing the ceiling structure of an embodiment of the present invention. [Figure 3] This is an overall perspective view showing a panel support piece according to an embodiment of the present invention. [Figure 4] This is an explanatory cross-sectional view showing a method for constructing a ceiling structure according to an embodiment of the present invention. [Figure 5] This is an explanatory cross-sectional view showing a method for constructing a ceiling structure according to an embodiment of the present invention. [Figure 6] This is an explanatory cross-sectional view showing a method for constructing a ceiling structure according to an embodiment of the present invention. [Figure 7] This is an explanatory cross-sectional view showing a modified example of the ceiling structure according to an embodiment of the present invention. [Figure 8] This is an explanatory side view showing the ceiling structure of an embodiment of the present invention. [Figure 9] This is an explanatory cross-sectional view showing a modified example of the ceiling structure according to an embodiment of the present invention. [Figure 10] It is an explanatory cross-sectional view showing a modified usage example of the ceiling structure of an embodiment of the present invention.

Mode for Carrying Out the Invention

[0015] Embodiments of the present invention will be described based on FIGS. 1 to 10. In FIG. 1, what is indicated by reference numeral 1 is a C-shaped steel, what is indicated by reference numeral 2 is a panel support piece, what is indicated by reference numeral 3 is a heat insulation panel, what is indicated by reference numeral 4 is a panel receiver, and what is indicated by reference numeral 5 is a suspended object. Note that the drawings are schematic, and the ratios of thickness, length, interval, etc. are different from the actual ones. <(I>

[0016] First, the C-shaped steel 1 (so-called "C-channel", "lip channel steel", etc.) is a known longitudinal member formed by bending a steel plate into a C-shaped cross-section. Upper flanges 12U and lower flanges 12D are respectively formed laterally from the upper and lower ends of the web 11, and upper lips 13U and lower lips 13D are respectively formed at the ends of these upper flanges 12U and lower flanges 12D (see FIG. 2).

[0017] The panel support piece 2 is a member using a metal material (such as a hot-dip galvanized steel plate) or a plastic material, etc. In this embodiment, a bent plate body manufactured by bending processing, extrusion molding, injection molding, etc. can be adopted.

[0018] The heat insulation panel 3 can adopt, for example, a structure in which a glass fiber-containing mixed paper is laminated on the surface of a foamed phenolic resin plate body (phenolic foam), and a relatively thin one with a thickness of about 20 mm is preferable. Also, the heat insulation panel 3 may be a fibrous sound-absorbing and heat-insulating material such as glass wool or rock wool.

[0019] Similar to the panel support piece 2, the panel receiver 4 can adopt a bent plate body using a metal material (such as a hot-dip galvanized steel plate) or a plastic material, etc.

[0020] The suspended object 5 is configured in a suspended manner using a suspension device 51, and can employ ceiling covering materials such as sheet bodies (so-called "membrane ceilings") or thin plates. To prevent danger in the event of accidental falling due to earthquakes, etc., and to prevent the spread of fire, it is preferable that the material be lightweight and non-combustible or flame-retardant. The suspended object 5 of the present invention is not limited to ceiling covering materials such as sheets or plates, but also includes equipment such as air conditioners, and piping materials such as pipes and ducts, as long as it is suspended from the ceiling.

[0021] The present invention provides a ceiling structure in which an insulating panel 3 and a suspended object 5 can be installed in a roof purlin, as shown in Figure 1, where multiple C-shaped steel sections 1 are arranged in parallel. The structure will be described below along with a specific construction method.

[0022] First, the existing C-shaped steel beam 1 has a wooden board or similar material for the roof sheathing fixed to its upper flange 12U, and the panel support piece 2 is housed between the web 11 and the lower lip 13D of the C-shaped steel beam 1. In other words, the presence of this panel support piece 2 creates a space between the lower lip 13D of the C-shaped steel beam 1 and the insulation panel 3, and this space makes it possible to attach the suspension device 51, which will be described later, to the lower lip 13D.

[0023] In this embodiment, the panel support piece 2 can be made into a bent plate body with its lower side tapered and widened by an elastic material such as metal (see Figure 3), and can be accommodated between the web 11 and the lower lip 13D of the C-shaped steel 1 in a biased state due to elastic restoring force. In this case, it is not necessary for the lower side of the panel support piece 2 to be in contact with the upper surface of the lower flange 12D.

[0024] The panel support piece 2 can be fixed inside the C-shaped steel 1 by means other than biasing forces such as screws, double-sided tape, or magnets, or it may simply be housed by resting it on the lower flange 12D.

[0025] Then, as shown in Figure 4, the heat insulating panel 3 is inserted through the opening 14 of the C-shaped steel 1, and one end of the heat insulating panel 3 is placed on the upper surface 21 of the panel support piece 2 for support.

[0026] In this embodiment, an inclined portion 21A is formed on the upper surface 21 of the panel support piece 2, thereby reducing the portion of the opening 14 of the C-shaped steel 1 that is blocked. This makes it easier to insert the insulation panel 3 during the installation work, as it is usually necessary to lift one end of the insulation panel 3 from below and insert it into the opening 14 while tilting it.

[0027] Then, as shown in Figure 5, after lifting the other end of the insulation panel 3, the panel support 4 is fixed to the outer surface of the web 11 of the C-shaped steel 1 with screws or the like, so that the other end of the insulation panel 3 can be placed on the upper surface 41 of the panel support 4, thereby installing the insulation panel 3 between the C-shaped steel 1 (see Figure 6).

[0028] In this embodiment, the panel support 4 can also be configured to have a vertical portion 42 such that the distance from the lower surface of the lower flange 12D of the C-shaped steel 1 to the upper surface 21 of the panel support piece 2 is approximately the same as the distance from the lower surface of the lower flange 12D of the C-shaped steel 1 to the upper surface 41 of the panel support 4 when the panel support piece 2 is housed in it. That is, by aligning the lower end level of the vertical portion 42 with the lower surface level of the lower flange 12D and fixing it to the outer surface of the web 11 of the C-shaped steel 1, the insulation panel 3 can be easily erected at a predetermined angle (such as horizontal or an angle along the slope of the roof).

[0029] The specific shape of the panel support 4 can be an L-shaped steel section as shown in Figure 6, or a Z-shaped steel section as shown in Figure 7. In particular, in the case of a Z-shaped section with the lower end extended to the side, positioning can be easily performed by placing the lower surface of the panel support 4 against the lower surface of the lower flange 12D of the C-shaped steel 1.

[0030] Subsequently, the suspension device 51 can be installed at a position different from the housing position of the panel support piece 2 on the lower lip portion 13D of the C-shaped steel 1, and the object to be suspended 5 can be suspended from the lower end of the suspension device 51 (see Figure 8). If the roof is sloped, the insulation panel 3 can be erected at an angle along the slope of the roof, as shown in Figure 9, and the object to be suspended 5 can be suspended in the same manner.

[0031] Furthermore, in this embodiment, as shown in Figure 10, the panel support piece 2 can be housed between the web 11 and the upper lip 13U of the C-shaped steel 1, and the heat insulating panel 3 can be placed on the lower lip 13D. In this case, the panel support piece 2 presses down on the upper surface of the heat insulating panel 3, and a hook-shaped suspension device 51, such as a thin bent plate, is hooked onto the lower lip 13D, thereby preventing the heat insulating panel 3 from floating up.

[0032] Although the present invention is generally configured as described above, the present invention is by no means limited to the illustrated embodiment, and various modifications are possible within the scope of the claims. For example, the panel support piece 2 is not limited to a bent plate, but may have any other shape as long as it can support the heat insulating panel 3.

[0033] Similarly, the panel support 4 may also have other shapes as long as it can support the heat-insulating panel 3, and all of these fall within the technical scope of the present invention. [Explanation of Symbols]

[0034] 1 C type steel 11 Web 12U upper flange 12D Lower flange 13U Upper Lip 13D Lower Lip 14 Opening 2 Panel support pieces 21 Top side 21A Inclined section 22 Tapered section 3. Insulation panels 4 Panel support 41 Above 42 Facade 5. The object being lowered 51 Lifting device

Claims

1. In a roof purlin where multiple C-shaped steel beams are arranged in parallel, there is a ceiling structure on which insulation panels and suspended objects can be installed, The C-shaped steel has upper and lower flanges formed laterally from the upper and lower ends of the web, and upper and lower lips formed at the ends of these upper and lower flanges, respectively. A panel support piece is housed between the web and the lower lip of the C-shaped steel, and one end of the heat-insulating panel inserted through the opening of the C-shaped steel can be placed on the upper surface of this panel support piece. A panel support is fixed to the outer surface of the web of the C-shaped steel, and the other end of the insulation panel is placed on the upper surface of this panel support, so that the insulation panel can be erected between the C-shaped steel sections. A ceiling insulation structure characterized in that a suspension device is installed at a position different from the housing position of the panel support piece on the lower lip portion of the C-shaped steel, and the object to be suspended can be suspended from the lower end of the suspension device.

2. The panel support piece is a bent plate body in which the lower side is tapered and widened by an elastic material, The ceiling insulation structure according to claim 1, characterized in that it can be accommodated between the web and the lower lip of the C-shaped steel while under biasing force due to elastic restoring force.

3. The ceiling insulation structure according to claim 1, characterized in that an inclined portion is formed on the upper surface of the panel support piece, thereby reducing the portion that closes off the opening of the C-shaped steel.

4. The ceiling insulation structure according to claim 1, characterized in that the panel support has an elevation portion formed such that the distance from the lower surface of the lower flange of the C-shaped steel to the upper surface of the panel support when the panel support piece is housed is substantially the same as the distance from the lower surface of the lower flange of the C-shaped steel to the upper surface of the panel support.

5. A construction method for a ceiling structure in which insulation panels and suspended objects are installed in a roof purlin made up of multiple C-shaped steel beams arranged in parallel, The C-shaped steel has upper and lower flanges formed laterally from the upper and lower ends of the web, and upper and lower lips formed at the ends of these upper and lower flanges, respectively. A panel support piece is placed between the web and the lower lip of the C-shaped steel, and the heat insulating panel is inserted through the opening of the C-shaped steel, with one end of the heat insulating panel resting on the upper surface of the panel support piece. After lifting the other end of the insulation panel, the panel support is fixed to the outer surface of the web of the C-shaped steel, and the other end of the insulation panel is placed on the upper surface of the panel support, thereby installing the insulation panel between the C-shaped steel sections. A method for constructing a ceiling insulation structure, characterized by installing a suspension device at a position different from the housing position of the panel support piece on the lower lip portion of the C-shaped steel, and suspending the object to be suspended from the lower end of the suspension device.

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