JP5169367B2 - Insulated ceiling - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a heat insulating structure for buildings, and more particularly to a ceiling heat insulating structure and a heat insulating ceiling that are constructed on the back surface of a ceiling of a general house and maintain a good indoor living environment.

2. Description of the Related Art Conventionally, it has been generally performed to install a heat insulating material inside a wall, ceiling, or floor of a building such as a house. For example, Japanese Patent Application Laid-Open No. 57-197347 discloses a heat insulating plate made of a hard resin foam having a back material at least on the back surface, and a V-shape with an angle of 90 degrees or less slightly inward from both ends in the width direction. After forming the groove and bending the both side ends along the V-shaped groove, and inserting it between the building support frames such as pillars, joists and field edges, the bent portion of the heat insulating plate and the building support frame And a heat insulation construction method for a building, which is characterized by being attached in a combined manner.
JP-A-57-197347

  The above technique is a method in which a heat insulating plate having V-shaped grooves at both ends is bent and inserted between building support frames, and then the bent portion of the heat insulating plate and the building support frame are coupled. , A step of joining by an appropriate fixing means such as a nail or an adhesive. For this reason, there is a problem in that work places such as the backside of the ceiling, etc., where the work space is narrow, particularly close to the edge of the eaves, are tapered and become poor. The present invention has been made in view of the above-described background art, and its purpose is to be constructed on the back of the ceiling of a general house, blocking high outdoor temperatures in the summer, preventing cold air in the winter, and causing problems such as condensation in the room. It is an object to provide a ceiling heat insulating structure that can insulate a low outside air temperature and maintain a good indoor living environment, and a heat insulating ceiling using the same.

  In order to solve the above problems, in the ceiling heat insulating structure according to the first aspect of the present invention, a composite ceiling is obtained by fixing and integrating a wooden member on the outer surface of the lower flange portion on the H-shaped steel material having a H-shaped cross section. Forming a beam, arranging the composite ceiling beams side by side at a fixed interval, and fixing a suspension tree support fixing bar to connect the upper wooden member and the lower wooden member of the composite ceiling beam, A suspended tree is bridged between the fixed beam and the suspended tree receiving fixed beam provided opposite to the adjacent composite ceiling beam to form a heat insulating material holding space composed of the composite ceiling beam and the suspended tree. A plate-like heat insulating material provided with V-shaped grooves along both ends in the direction is press-fitted and fitted into the heat insulating material holding space with the V-shaped grooves bent.

In the heat insulating ceiling according to the invention described in claim 1 of the present application, the same module composed of the composite ceiling beam and the suspended tree, and a plurality of heat insulating material holding spaces are provided on the entire back surface of the ceiling, A heat insulating ceiling in which a plate heat insulating material is fitted and a ceiling finishing material is provided below the plate heat insulating material, and the plate heat insulating material is press-fitted into the heat insulating material holding space and then returned to its original state. The both ends of the plate-like heat insulating material that are bent are pressed against the inner side of the suspension tree by a restoring force to be worked, and are held by a frictional force .

  In the ceiling heat insulating structure according to the first aspect of the present invention, in particular, composite ceiling beams formed by fixing and integrating an H-shaped steel material and a wooden member are juxtaposed at regular intervals, and the upper wood of the composite ceiling beam is arranged. A suspension tree support fixing bar is fixed so as to connect the member and the lower wooden member, and the suspension tree is fixed between the suspension tree support fixing bar and the suspension tree support fixing bar provided opposite to the adjacent composite ceiling beam. It is possible to provide a fixed heat insulating material holding space composed of a composite ceiling beam and a suspended tree with good workability without requiring complicated work. In addition, a plate-like heat insulating material provided with V-shaped grooves along the widthwise opposite end portions in the heat insulating material holding space is bent upward and centered on the V-shaped groove and compressed in the heat insulating material holding space. Since it press-fits, after the press-fitting, a restoring force that tries to return to the original state works to press-contact the inside of the hanging tree, and it is held by the frictional force and can be fitted firmly.

  In this way, since the plate-like heat insulating material itself is pressed by the restoring force, the plate-like heat insulating material and the ceiling back structure material are fixed using a fixing means such as a nail or a screw after press-fitting, and the above workability is good. A plate-like heat insulating material can be attached to the ceiling structure material. In addition, it is possible to fit the plate-shaped heat insulating material in the ceiling frame as well as to increase the thickness of the plate-shaped heat insulating material, so that it does not affect other structures and is compatible with high-performance heat insulating specifications. Can do.

In the heat insulating ceiling according to the invention of claim 1, wherein, in particular, the same module comprising a wood suspension and the composite ceiling beams, and, by providing a plurality of heat-insulating material holding space, corresponds to the heat insulating material holding space The plate-like heat insulating material can be manufactured in a compact lot and with a large quantity for each lot. And the heat insulation of a ceiling back surface can be performed advantageously in cost using the plate-shaped heat insulating material obtained by mass production at low cost.

  In addition, since the ceiling finishing material is provided below the plate-shaped heat insulating material, even if the plate-shaped heat insulating material falls out of the heat insulating material holding space, it is supported by the ceiling finishing material. The heat insulation effect can be demonstrated without receiving.

  Furthermore, since a plurality of heat insulating material holding spaces are provided over the entire back surface of the ceiling, and a plate-like heat insulating material is fitted in each heat insulating material holding space, a large roof is heated by solar radiation in the summer and is heated to a high temperature. Even in this case, it is possible to block the high temperature outside air, insulate the cold air in winter, prevent problems such as condensation in the room, and maintain a good indoor living environment.

  Hereinafter, an embodiment of a ceiling heat insulating structure according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing a heat insulating material holding space A composed of the composite ceiling beam B and the suspension tree 4 according to the present invention in the ceiling frame assembly process. In FIG. 1, the composite ceiling beam B has an upper wooden member 21 and a lower wooden member 22 fixed to the outer surfaces of the upper flange portion 11 and the lower flange portion 12 of the H-shaped steel member 1 (not shown). The composite ceiling beam B is arranged in parallel at regular intervals.

  Further, as shown in FIG. 1, a suspended tree receiving and fixing bar 3 comprising two bars 31 is connected to the upper and lower wooden members 21 and 22 so as to connect the upper wooden member 21 and the lower wooden member 22 constituting the composite ceiling beam B. It is fixed to the wooden members 21 and 22. The fixing means is not particularly limited, and the fixing means is appropriately fixed by a known means such as nail fixing, screw fixing, adhesive bonding or the like.

  The above-mentioned composite ceiling beam B and the adjacent composite ceiling beam B are provided with the above-mentioned suspension tree support fixing bars 3 facing each other, and a suspension tree 4 is suspended between the above-mentioned opposite suspension tree support fixing bars 3. Passed. Here, the suspension trees 4 are erected with an interval of the inner method d. As described above, a rectangular heat insulating material holding space A is formed from the composite ceiling beam B and the suspended tree 4 as shown in FIG. In addition, the composite ceiling beams B are arranged in parallel at equal intervals, and the suspension trees 4 are installed at regular intervals, whereby a plurality of similar module heat insulating material holding spaces A can be provided on the entire back surface of the ceiling.

  FIG. 2 is a perspective view showing a plate-like heat insulating material 5 used in the ceiling heat insulating structure according to the present invention. As the plate-like heat insulating material 5, a single plate shape form such as a hard synthetic resin foam such as expanded polystyrene, expanded polyurethane, beaded polystyrene, epoxy foam, phenol foam, polyethylene foam, high-density glass wool mat, rock wool mat, etc. What has the hardness of the grade which hold | maintains is used.

  As shown in FIG. 2, a V-shaped groove 52 is provided slightly inside from the left and right side ends of the plate-shaped heat insulating material 5 to form end portions 51, 51, and the both end portions 51 form valleys of the V-shaped groove 52. It can be bent at the center. At this time, the interval w between the valleys of the V-shaped groove 52 is substantially equal to or slightly larger than the inner method d of the hanging trees 4. Usually, the V-shaped groove 52 is engraved so that the interval w is 1-2 mm larger than the inner method d.

  Next, a method for fitting the plate-like heat insulating material 5 into the heat insulating material holding space A will be described. FIG. 3 is an explanatory view showing a state in which the plate-like heat insulating material 5 is press-fitted and fitted into the heat insulating material holding space A shown in the cross section along the line XX in FIG. As shown in FIG. 3, the plate-like heat insulating material 5 has the left and right end portions 51 bent around the valley of the V-shaped groove 52, and in this state, the plate-like heat insulating material 5 is pushed up from below the ceiling shaft assembly, and the heat insulating material holding space A Fitted. Here, since the interval w between the valleys of the V-shaped groove 52 is slightly larger than the inner method d between the hanging trees 4, the plate-like heat insulating material 5 in which both end portions 51 are bent holds the heat insulating material. Press tightly into the space A.

  FIG. 4 is a cross-sectional view showing the plate-like heat insulating material 5 fitted and held in the heat insulating material holding space A. FIG. 5 is a perspective view showing the plate-like heat insulating material 5 fitted and held in the heat insulating material holding space A. FIG. As described above, since the plate-like heat insulating material 5 is fitted into the heat insulating material holding space A in a state where both end portions 51 are bent and compressed, a restoring force that tries to return to the original state works after the fitting. Press firmly inside the hanging tree 4. In this way, the plate-like heat insulating material 5 is simply fitted in the heat-insulating material holding space A without being fixed by bending and bending the both end portions 51. Therefore, the plate-like heat insulating material is attached to the ceiling back structure material with good workability. 5 can be mounted.

  On the other hand, as described above, a plurality of heat insulating material holding spaces A of similar modules are provided on the back surface of the ceiling. Therefore, in the present invention, the plate-like heat insulating material 5 is held in the plurality of heat insulating material holding spaces A, and a ceiling finishing material supported by ceiling material supporting means (not shown) is attached below them, for example, gypsum board. It is done.

  FIG. 6 is a partial cross-sectional explanatory view showing the heat insulating ceiling C according to the present invention. As shown in FIG. 6, the heat insulating ceiling C is provided with a heat insulating material holding space A on the entire back surface of the ceiling, is fitted with the plate heat insulating material 5, and the ceiling finishing material below the plurality of plate heat insulating materials 5. 6 is configured by attaching a gypsum board. By doing in this way, even in the summer, even if the roof with a large area is heated by solar radiation and becomes high temperature, the plate-like heat insulating material 5 provided over the entire back surface of the ceiling insulates, and in the winter the cold is prevented. Therefore, the indoor living environment can be kept good so that problems such as condensation do not occur indoors.

  As described above, according to the present invention, not only the ceiling heat insulation structure and the heat insulation ceiling excellent in heat insulation are provided, but also the plate-like heat insulating material 5 corresponding to the module of the heat insulating material holding space A is mass-produced. As a result, it is possible to improve the workability and reduce the construction cost. In addition, in the said embodiment, although the case where a gypsum board was attached as a ceiling finishing material was described, it is good also as a ceiling board in a Japanese house. As described above, the present invention can be modified in design, and belongs to the technical scope of the present invention without departing from the scope of the claims.

Explanatory drawing which shows the heat insulating material holding space comprised from the composite ceiling beam and suspension tree which concern on this invention. The perspective view which shows the plate-shaped heat insulating material used in the ceiling heat insulation structure concerning this invention. Explanatory drawing which shows the state which press-fits and inserts a plate-shaped heat insulating material in the heat insulating material holding space shown by the cross section along the XX line of FIG. Sectional drawing which shows the plate-shaped heat insulating material fitted and hold | maintained in the heat insulating material holding space. The perspective view which shows the plate-shaped heat insulating material fitted and hold | maintained in the heat insulating material holding space. Partial cross-section explanatory drawing which shows the heat insulation ceiling concerning this invention.

Explanation of symbols

A Insulating material holding space B Composite ceiling beam C Insulating ceiling d Inner method w between suspended trees Space between V-shaped groove valleys 1 H-shaped steel material 11 Upper flange portion 12 Lower flange portion 21 Upper wooden member 22 Lower wooden member 3 Hanging tree support fixing bar 31 Crossing 4 Hanging tree 5 Plate-like heat insulating material 51 End 52 V-shaped groove 6 Ceiling finishing material

Claims (1)

A composite ceiling beam is formed by fixing and integrating a wooden member on the outer surface of the lower flange portion on an H-shaped steel material having an H-shaped cross section, and arranging the composite ceiling beam in parallel at a predetermined interval. The suspension tree support fixing bar is fixed so as to connect the upper wooden member and the lower wood member, and between the suspension tree support fixing bar and the suspension tree support fixing bar provided opposite to the adjacent composite ceiling beam. A board-like heat insulating material having a V-shaped groove along both widthwise end portions is formed by forming a heat insulating material holding space composed of the composite ceiling beam and the suspended tree. It is equipped with a ceiling heat insulating structure that is press-fitted and fitted into the heat insulating material holding space in a bent state, and is provided with a module composed of the composite ceiling beam and a suspended tree, and a plurality of heat insulating material holding spaces are provided on the entire ceiling back surface The plate-like heat insulating material is fitted in the heat insulating material holding space, and the plate-like heat insulating material is The ceiling finish a heat insulating ceiling formed by providing a, the plate-shaped heat insulating material, was injected into the heat insulating material holding space, restoring force of returning to the original is folded with the plate-shaped heat insulating material working across A heat-insulating ceiling whose part is pressed against the inside of the suspension tree and held by frictional force .