JP2005264491A - Outside heat insulation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outside heat insulation method capable of forming an heat insulation layer 4 between a skeleton wall 1 and an insulating panel 2 without adding any swelling deformation to the insulating panel 2 by foaming pressure of a foaming thermal insulating material. <P>SOLUTION: A panel supporting metal fitting 15 preventing the insulating panel 2 from making swelling deformation in the direction separating from the skeleton wall 1 is detachably mounted between the upper end section of the insulating panel 2 and the skeleton wall 1. Then, the foaming thermal insulating material is injected between the skeleton wall 1 and the insulating panel 2. After the injection, the panel supporting metal fitting 15 is removed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an outer heat insulating method for constructing a heat insulating panel through a heat insulating layer on the outside of a frame wall in repairing an outer wall of a refrigerator / freezer warehouse or the like.

  Conventionally, as this type of external heat insulation method, for example, as shown in FIG. 4, a plurality of heat insulation panels 31 are assembled in order from the bottom to the top at appropriate intervals on the outside of the building wall 30 of the building. There is a method of forming a heat insulating layer 32 by injecting and foaming a foam heat insulating material between the heat insulating panel 31 and the housing wall 30 every time the 31 is assembled.

  However, in the outer heat insulating method, since a high foaming pressure is applied to the heat insulating panel 31 during foaming of the foam heat insulating material to cause the heat insulating panel 31 to bulge in a direction away from the housing wall 30, For example, it is conceivable to increase the strength of the heat insulating panel 31 itself by shortening the length of one heat insulating panel 31 or increasing the panel thickness. However, when the length dimension of the heat insulation panel 31 is shortened, a vertical trunk edge (not shown) attached to assemble the thermal insulation panel 31 to the casing wall 30 or a trunk edge fixing that fixes the vertical trunk edge to the casing wall 30. It becomes necessary to set the arrangement interval of the heat insulating panel base material by a member (not shown), etc., and the amount of the heat insulating panel base material increases accordingly, leading to an increase in material cost and construction cost, and increasing the panel thickness, Since the weight of one heat insulation panel 31 is increased, there is a problem that the construction is difficult and the material cost is increased.

  The present invention has been made to solve such a problem, and the object of the present invention is to provide a space between the housing wall and the heat insulation panel without bulging deformation of the heat insulation panel due to the foaming pressure of the foam heat insulation material. An object of the present invention is to provide an outer heat insulation method that can form a heat insulation layer, thereby reducing the construction cost and material cost and improving the workability.

  In order to achieve the above object, the present invention relates to an outer heat insulating method in which a heat insulating panel is assembled on the outer side of a housing wall at an appropriate interval, and a foam heat insulating material is injected between the housing wall and the heat insulating panel. A step of successively joining a plurality of the heat insulation panels from the bottom to the top with an appropriate interval on the outside of the housing wall and assembling the heat insulation panels through the base material of the heat insulation panel, and each time the heat insulation panels are assembled, the upper end of the heat insulation panel A panel support bracket that prevents the heat insulation panel from bulging and deforming in a direction away from the housing wall between the portion corresponding to the space between the heat insulating panel base materials in the section and the housing wall; And then injecting the foam heat insulating material between the housing wall and the heat insulating panel, and removing the panel support bracket after the injection. Is shall.

  According to the outer heat insulation method of the above configuration, a simple means of detachably attaching the panel support bracket between the upper end portion of the heat insulation panel and the housing wall before injecting the foam insulation between the housing wall and the heat insulation panel. Thus, the panel support bracket can prevent the heat insulating panel, in particular, the side closer to the upper end of the heat insulating panel from bulging and deforming in the direction away from the housing wall due to the foaming pressure at the time of foaming of the foam heat insulating material. Therefore, it is not necessary to shorten the length dimension of the heat insulating panel or increase the panel thickness in consideration of the foaming pressure of the foam heat insulating material. By eliminating the need to shorten the length of heat insulation panels, it is no longer necessary to shorten the distance between heat insulation panel base materials or increase the number of heat insulation panel base materials. It can be made longer and the number of heat insulating panel base materials can be reduced, so that material costs and construction costs can be reduced. Further, since it is not necessary to increase the thickness of the heat insulation panel, it is possible to reduce the weight of the heat insulation panel, facilitate the construction, and reduce the cost.

  If the panel support bracket is left attached after construction, it will conduct heat over the inside and outside of the heat insulation panel, which will impede the heat insulation function by the heat insulation layer between the frame wall and the heat insulation panel. Since it removes after injection | pouring of a heat insulation foaming material, the malfunction which inhibits such a heat insulation function is lose | eliminated. Moreover, the panel support metal fitting can be reused in the stage before the next heat insulation foaming material injection | pouring.

  A preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal side view showing a state of a process of injecting foam insulation between a housing wall and a heat insulation panel according to the present invention, FIG. 2 is an enlarged view of portion A in FIG. 1, and FIG. 3 is a cross-sectional plan view of FIG. .

  1 to 3, the heat insulating wall structure obtained by the outer heat insulating method of the present invention is such that a plurality of heat insulating panels 2 are sequentially arranged from the bottom to the top at appropriate intervals on the outside of the housing wall 1 in a refrigerated warehouse or the like. The heat insulating layer 4 is formed by injecting and foaming a foam heat insulating material between the heat insulating panel 2 and the housing wall 1 every time the heat insulating panels 2 are assembled. It is the structure which forms.

  The frame wall 1 is formed of a concrete wall. The heat insulating panel 2 is formed by sandwiching a heat insulating material 7 such as urethane foam between a metal front surface plate 5 and a back surface plate 6 provided with unevenness by embossing or the like, and has a length (width) W in the lateral direction. The length (height) H (see FIG. 1) in the vertical and vertical directions with respect to (see FIG. 3) is formed in a horizontally long rectangular shape. Further, as shown in FIG. 1, the heat insulating panel 2 includes a metal upper frame portion 8 and a lower frame portion 9 at its upper and lower ends, respectively, the lower frame portion 9 is formed in a cross-sectional groove shape, and the upper frame portion 8 is below it. It is formed in a cross-sectional shape that can be fitted into the groove 9 a of the frame portion 9.

  As shown in FIG. 3, the heat insulating panel 2 is assembled to the outside of the housing wall 1 with a heat insulating panel base material 3 made of a metal-made cross-sectional groove-shaped vertical trunk edge 10, anchor bolts 11, and the like at an appropriate interval. I have to. That is, the vertical trunk edge 10 is attached to the anchor bolt 11 planted on the frame wall 1, and the heat insulating panel 2 is assembled by being fixed to the vertical trunk edge 10 by the drill screw 13. In this way, the plurality of heat insulation panels 2 are assembled in the vertical direction (up and down direction) and the horizontal direction (left and right direction) via the heat insulation panel base material 3.

  The heat insulating layer 4 is formed by injecting a foam heat insulating material between the housing wall 1 and the heat insulating panel 2. A foamed polyurethane or the like is used as the foam insulation, and a spray gun or a nozzle is used for the injection.

  Next, the outer heat insulation method of the present invention will be described with reference to FIGS. First, as shown in FIG. 3, the vertical trunk edge 10 is attached to the anchor bolt 11 planted on the frame wall 1. At that time, the longitudinal body edge 10 is attached to the outer surface of the housing wall 1 in parallel in the left-right and lateral directions with a predetermined interval.

Next, the heat insulation panel 2 is passed between the vertical body edges 10, 10, and the heat insulation panel 2 is appropriately spaced outside the housing wall 1 by fixing means such as driving a drill screw 13 into the heat insulation panel 2 and the vertical body edge 10. Assemble in the horizontal direction.
Moreover, as shown in FIG. 2, FIG. 3, the panel support metal fitting 15 is attached between the upper frame part 8 and the frame wall 1 of the upper end part of the heat insulation panel 2 so that attachment or detachment is possible. The panel support bracket 15 is formed in a Z-shaped cross section having a main body 15a made of a band-shaped metal plate, and a downward flange portion 15b and an upward flange portion 15c formed by bending the front and rear ends of the main body 15a in the opposite directions. Become. This panel support bracket 15 is arranged at one or several places between the adjacent heat insulating panel base materials 3 and 3, hooks the downward flange portion 15 b to the front side of the upper frame portion 8 of the upper end portion of the heat insulating panel 2, and raises the upward flange. The portion 15c is brought into contact with the housing wall 1 and the hole 16 provided in the upward flange portion 15c is inserted into the anchor bolt 17 planted in the housing wall 1 and tightened with a nut 18 so as to be detachable. In addition to hooking the downward flange portion 15b on the upper frame portion 8 of the upper end portion of the heat insulating panel 2, the downward flange portion 15b can be further removed from the upper frame portion 8 of the heat insulating panel 2 with a stopper (not shown) such as a screw. It is good to conclude to.

  Thereafter, a foam heat insulating material is injected between the heat insulating panel 2 and the housing wall 1 to form the heat insulating layer 4. At this time, foaming pressure is applied to the heat insulating panel 2 when the foam heat insulating material is foamed, and the location corresponding to the space between the heat insulating panel base materials 3 and 3 in the upper frame portion 8 of the upper end portion of the heat insulating panel 2 is the upward flange portion. 15c is supported so as to restrict forward displacement by a downward flange portion 15b of the panel support bracket 15 fixed to the housing wall 1, so that the heat insulation panel 2, particularly the vicinity of the upper end of the heat insulation panel 2, is near the housing wall 1. Can be prevented from bulging and deforming in the direction away from the front (front). Therefore, when the groove 9a of the lower frame portion 9 of the upper thermal insulation panel 2 is further fitted to the upper frame portion 8 of the thermal insulation panel 2 in the next step, it can be easily joined without any trouble. Since the groove 9a of the lower frame portion 9 of the heat insulation panel 2 is fitted and fixed to the upper frame portion 8 of the lower heat insulation panel 2, there is no fear that the lower end portion and the lower end side of the heat insulation panel 2 bulge and deform.

  Next, the panel supporting metal 15 is removed from the anchor wall 17 by removing the nut 18 from the anchor bolt 17 from the upper end of the lower heat insulating panel 2 in which the heat insulating layer 4 is formed between the housing wall 1 and the housing wall 1 as described above. . Thus, the upper heat insulating panel 2 is joined to the upper frame portion 8 of the heat insulating panel 2 by fitting the groove 9a of the lower frame portion 9, and the upper heat insulating panel 2 is connected to the base of the heat insulating panel. It is assembled via the material 3. Further, the removed panel support 15 is removably attached between the upper frame portion 8 of the heat insulating panel 2 on the upper side and the housing wall 1 in the same manner as the above-described attachment procedure. Thereafter, a foamed heat insulating material is injected between the upper heat insulating panel 2 and the housing wall 1 in the same manner as in the case of injecting the foamed heat insulating material, whereby the heat insulating layer 4 is formed on the previous heat insulating layer 4. Are stacked.

  After the heat insulation, the heat insulation panels 2 are sequentially joined together in the upward direction and assembled via the heat insulation panel base material 3, and the foam insulation is injected between the heat insulation panel 2 and the frame wall 1 by attaching and detaching the panel support bracket 15 each time. The process is repeated until the height of the frame wall 1 is reached. As shown in FIG. 3, the joint (joint) between the heat insulating panels 2 and 3 adjacent in the horizontal direction is covered with a decorative cover 19.

  Since the heat insulation panel 2 can be prevented from bulging and deforming due to the foaming pressure during the foaming of the foam heat insulating material as described above, the length of the heat insulating panel 2 can be shortened in consideration of the foaming pressure of the foam heat insulating material, There is no need to increase the thickness of the panel, and it is not necessary to shorten the interval between the heat insulating panel base materials 3 and 3 or to increase the quantity of the heat insulating panel base materials 3. The space | interval between each other can be lengthened, the quantity of the heat insulation panel base material 3 can also be decreased, and material cost and construction cost can be reduced. Moreover, since it is not necessary to make the heat insulation panel 2 thick, the heat insulation panel 2 can be reduced in weight, easy to construct, and reduced in cost.

  Since the panel support bracket 15 is removed after the heat insulating foam material is injected, the heat insulating function by the heat insulating layer 4 between the housing wall 1 and the heat insulating panel 2 is not lowered. Moreover, the panel support bracket 15 once removed can be reused in the stage before the next heat insulating foaming material injection, which is advantageous.

It is a vertical side view which shows the state of the foam heat insulating material injection | pouring process between the frame wall and heat insulation panel in this invention. It is an enlarged view of the A section in FIG. It is a cross-sectional plan view of FIG. It is sectional drawing of the heat insulation wall structure of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing wall 2 Thermal insulation panel 3 Thermal insulation panel base material 4 Thermal insulation layer 15 Panel support metal fitting

Claims (1)

In the outer heat insulation method of assembling a heat insulation panel at an appropriate interval on the outside of the housing wall and injecting a foam heat insulating material between the housing wall and the heat insulation panel,
A step of sequentially joining a plurality of the heat insulation panels from the bottom to the top with an appropriate interval on the outside of the housing wall and assembling them through the heat insulation panel base material, each time each heat insulation panel is assembled, A step of detachably attaching a panel support bracket that prevents the heat insulating panel from bulging and deforming in a direction away from the housing wall between a portion of the upper end corresponding to the space between the heat insulating panel base materials and the housing wall; Then, an outer heat insulating method comprising the steps of injecting the foam heat insulating material between the housing wall and the heat insulating panel and removing the panel support metal after the injection.

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