JP4986488B2 - Thermal insulation basic structure and locking member - Google Patents

Description

  The present invention relates to a heat insulating foundation structure in which a plate-like heat insulating material is attached to the side surface of the foundation concrete, a construction method for constructing the heat insulating foundation structure, and a locking member advantageous for use in carrying out the heat insulating foundation structure. It is about.

  In buildings built in cold regions, the foundation is insulated. There is a post-pasting method as one of the methods for realizing basic heat insulation. In this construction method, concrete is placed on a base formwork and solidified, and then a plate-like heat insulating material is attached to the side surface of the base concrete formed by removing the formwork.

  As a method of attaching a plate-like heat insulating material to the side surface of the basic concrete, adhesion is generally used. For example, using a powdery inorganic adhesive, kneading this adhesive with water, etc., and then evenly applying it to the adhesive surface with a trowel, etc., and pressing a plate-like heat insulating material on the side of the foundation concrete It is general that the adhesive is sufficiently adhered by holding this state for a predetermined time (see, for example, Non-Patent Document 1).

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  In the method of bonding a plate-like heat insulating material to the side surface of the basic concrete, the work of applying an adhesive to the bonding surface is performed at a building site. For this reason, there is a problem that it may not be possible to eliminate the possibility of variation depending on the skill of the worker who works, and in the case where the adhesive is kneaded on site, the performance of the kneaded adhesive itself is also affected. There is a problem that it is impossible to eliminate the possibility of variations.

  In addition, a structure for pressing a plate-shaped heat insulating material against the foundation concrete is provided around the foundation concrete until the adhesive is cured, which hinders the progress of other operations. In some cases, the adhesive may protrude from the upper end of the adhesive surface as the plate-shaped heat insulating material is pressed against the side of the foundation concrete. In this case, the adhesive may be wiped off. There is also a possibility that an extra work is required.

  The object of the present invention is to provide a heat insulating foundation structure capable of exhibiting stable performance regardless of the skill of the worker and smoothly proceeding the work process, and a method for constructing the heat insulating foundation structure, It is another object of the present invention to provide an advantageous locking member that is used in a heat insulating substructure.

In order to solve the above problems, a heat insulating basic structure according to the present invention is a basic heat insulating structure in which a plate-like heat insulating material is attached to a side surface of a foundation concrete, and includes a piercing portion and a piercing member for piercing the plate-like heat insulating material. A thin plate-like locking member having a locking portion for locking the plate-like heat insulating material pierced through the through portion is embedded in the foundation concrete, and the piercing portion is protruded horizontally from the side surface of the foundation concrete. The plate-like heat insulating material is pierced into the piercing portion and the pierced plate-like heat insulating material is brought into contact with the basic concrete and fixed by the locking portion, so that the plate-like heat insulating material is fixed to the basic concrete. It is attached to the side.

  Moreover, the construction method of the basic heat insulation according to the present invention includes a piercing portion that pierces the plate-like heat insulating material and a locking portion that locks the plate-like heat insulating material pierced by the piercing portion. Place the locking part in the direction that protrudes from the mold with a predetermined spacing in the horizontal direction between the upper and lower or left and right molds in the mold that is continuous in the vertical and horizontal directions. The concrete is placed in the formwork to embed a part of the locking member, and after the concrete is solidified, the formwork is removed to form the basic concrete in which the piercing portion of the locking member protrudes in the horizontal direction. The plate-like heat insulating material is made to face the side surface of the foundation concrete, and the piercing portion is pierced and pressed against the side surface, and then the plate-like heat insulating material is fixed by the locking portion. is there

  Further, the first locking member according to the present invention is formed of a plate-like body, and a piercing portion corresponding to the thickness of the plate-like heat insulating material is formed toward the tip on at least one end side. A locking portion having a refracting line formed in a direction orthogonal to the longitudinal direction is formed continuously from the leading end portion of the passage portion.

In addition, the second locking member is arranged continuously in the vertical direction and is arranged at the joint of the molds arranged to face each other. A locking member having a function of attaching a plate-like heat insulating material, comprising a plate-like body having a long side and a short side, and arranged on one side of the long side of the plate-like body so as to face the lower side Four downward folding pieces folded downward so as to sandwich the upper flanges of the pair of molds at a predetermined interval are disposed on the other side of the long side of the plate-like body so as to face the upper side. Four upward folded pieces folded upward so as to sandwich the lower flange of the mold frame at the same interval as the downward folded pieces are formed, and a heat insulating material is provided on at least one side of the short side of the plate-like body. A piercing portion having a length corresponding to the thickness of the piercing portion, In order to form a locking portion for piercing the heat material and bringing the heat insulating material into contact with the side of the foundation concrete and being refracted to lock the heat insulating material, at least the folded piece positioned outside the mold A resection line for resection is formed, and a refraction line serving as a refraction base point of the engagement portion is formed at the boundary between the piercing portion and the engagement portion .

  In the heat insulation foundation structure according to the present invention, since the piercing portion of the locking member embedded in the foundation concrete protrudes in the horizontal direction from the side surface of the foundation concrete, a plate-like heat insulating material (hereinafter simply referred to as “ The heat insulating plate can be attached to the side surface of the basic concrete by piercing the side surface of the basic concrete and bringing it into contact with the side surface of the basic concrete and locking it with the locking portion.

  In this way, when the heat insulating plate is attached to the side of the foundation concrete, the heat insulating plate is inserted into the piercing portion of the locking member and attached by the locking portion, so that it is stable for a long time regardless of the skill of the worker. The attached state can be maintained. For this reason, the stable heat insulation performance can be exhibited.

  In particular, since an adhesive is not used, it is not necessary to hold the heat insulating plate against the side surface of the foundation concrete while the adhesive is cured. For this reason, the operation | work which attaches a heat insulating board to the side surface of a foundation concrete is complete | finished, At the same time, it can progress to the following work process and can progress a series of work without delay.

  In the construction method according to the present invention, the locking member is disposed between the molds that are continuous in the vertical direction and the horizontal direction, and a part of the piercing part and the locking part protrude from the mold, After the concrete placed in the mold is solidified, the locking part and the piercing part can be protruded from the side surface of the foundation concrete by removing the mold. And after inserting a heat insulating plate into the piercing part protruding from the side of the solidified foundation concrete and pressing it against the side of the foundation concrete, the insulation board is fixed to the side of the foundation concrete by fixing it with a locking part. Can be attached.

  Further, in the first locking member according to the present invention, since the piercing portion corresponding to the thickness of the heat insulating plate is formed at one end of the plate-like body, the heat insulating plate is pierced through the piercing portion. When this is done, one side of the pierced insulation board comes into contact with the side of the foundation concrete. And by refracting the locking part using the refractive line formed on the tip side of the piercing part, the locking part can lock the opposite surface of the foundation concrete of the heat insulating plate, Thereby, a heat insulation board can be attached to foundation concrete.

  Further, in the second locking member according to the present invention, a pair of plate-like bodies having a predetermined width is disposed on one side of the plate-like body in the width direction and adjacent to the upper and lower sides or the right and left sides and on one surface side of the plate-like body. The folding piece that determines the width by sandwiching the mold in the thickness direction determines the width by sandwiching a pair of molds arranged on the other surface side of the plate-like body on the other side in the thickness direction. Since the folded pieces are formed respectively, they are arranged on the upper surface side or the lower surface side with respect to the plate thickness of the locking member depending on the folded pieces when arranged between the molds that are continuous in the vertical direction and the horizontal direction. By sandwiching a pair of molds that are arranged opposite to each other, the widths of these molds can be determined. For this reason, it becomes easy to arrange a plurality of molds continuously.

  Further, a cutting line is formed on at least one side in the longitudinal direction of the plate-like body so as to cut the plate-like body to form a piercing portion and a locking portion corresponding to the thickness of the heat insulating plate. Since the refracted line is formed at the boundary between the part and the locking part, when the placed concrete is solidified and the formwork is removed, the piercing part and the locking part are horizontal from the side of the foundation concrete. Protrusively. Then, by cutting the plate-like body along the cut line formed in the plate-like body, a piercing portion formed in a tapered shape toward the tip and a locking portion continuous to the piercing portion are formed. can do.

  Therefore, the second locking member of the present invention can have both the function of determining the width of the mold and the function of attaching and locking the heat insulating plate on the side surface of the foundation concrete. For this reason, the operation | work at the time of comprising a heat insulation foundation can be advanced reasonably.

  Hereinafter, preferred embodiments of the heat insulating basic structure, the construction method, and the locking member according to the present invention will be described. The heat insulation foundation structure according to the present invention realizes a dry construction method that does not use an adhesive when a plate-like heat insulating material is attached to the side surface of the foundation concrete, and protrudes horizontally from the side surface of the foundation concrete. The heat insulating plate is attached to the side surface of the foundation concrete by inserting the heat insulating plate through the piercing portion of the engaging member and engaging with the engaging portion.

  As mentioned above, the heat insulating plate is mechanically locked to the side of the foundation concrete using the locking part, so that the performance of mounting the heat insulating plate on the side of the basic concrete can be stabilized regardless of the skill of the worker. It becomes possible to exhibit stable heat insulation performance over a long period of time.

  In the present invention, the heat insulating plate is not particularly limited as long as it is a plate-like heat insulating material, such as a heat insulating plate made of a phenol resin foam, or a heat insulating plate such as a foamed plastic heat insulating plate such as polystyrene or polyethylene. Can be used.

  The locking member of the present invention is fixed to the foundation concrete, and protrudes a piercing portion provided with a locking portion at the tip portion in the horizontal direction from the side surface of the foundation concrete, and a heat insulating plate is inserted into the piercing portion. It attaches using a latching part through. For this reason, the piercing part is formed with a dimension substantially equal to the thickness of the heat insulating plate, and the locking part keeps the heat insulating plate pierced by the piercing part in contact with the side surface of the foundation concrete. It is formed with a structure sufficient to do this.

  Accordingly, the locking member is not particularly limited as long as it has a shape and strength that can satisfy the above functions. As a material constituting such a locking member, there are a thin plate and a thin rod, and any of them can be preferably used.

  When the locking member is formed of a thin plate, it is preferable that the piercing portion has a tapered shape so that the heat insulating plate can be easily pierced. Further, it is preferable that the locking portion is configured such that the tapered tip end portion is bent at a substantially right angle and brought into contact with the surface of the heat insulating plate. By forming the piercing part and the locking part in this way, it is possible to pierce the piercing part in the process of approaching the heat insulating plate facing the side surface of the foundation concrete toward the foundation concrete. It can be locked by bringing a bent locking portion into contact with the outer surface of the heat insulating plate in contact with the side surface of the concrete.

  When the locking member is formed of a thin rod, the thin rod itself is used as a piercing portion, and the locking portion is formed by a screw formed at the tip of the thin rod and a set screw fastened to the screw portion. Is preferred. By configuring such a piercing portion and a locking portion, it is possible to pierce the piercing portion in the process of approaching the heat insulating plate facing the side surface of the basic concrete toward the basic concrete, It can be locked by bringing a set screw fastened to the locking portion into contact with the outer surface of the heat insulating plate brought into contact with the side surface of the foundation concrete.

  It is necessary for the locking member to maintain the state in which the heat insulating plate is in contact with the side surface of the foundation concrete for a long time. For this reason, it is preferable that the material which comprises a locking member is a thing which does not generate | occur | produce corrosion or a intensity | strength fall over a long period of time. Such materials include stainless steel, especially austenitic stainless steel.

  The locking member projects the piercing part and the locking part in the horizontal direction from the side surface of the foundation concrete. In order to maintain the posture in which the locking member projects the piercing portion and the locking portion in the horizontal direction, the locking member is preferably fixed to the foundation concrete. The fixing structure of the locking member with respect to the foundation concrete is not particularly limited, but it is preferable that a part of the locking member is embedded in the foundation concrete from the viewpoint of ease of work, maintenance of a fixed state over a long period of time, and the like.

  In order to embed the locking member in the foundation concrete and allow the locking part to protrude from the foundation concrete, the locking member is placed between adjacent molds or penetrated through the molds. It is necessary to project the part and the locking part. For this reason, when constructing a foundation using a steel mold, it is preferable to use a locking member using a thin plate. Moreover, when constructing a foundation using a wooden formwork, it is possible to use a locking member using a thin stick.

  When a part of the locking member is embedded in the foundation concrete as described above, it is preferable to have a function of determining the width of the pair of molds arranged to face the locking member. For example, when the locking member is constituted by a thin plate, for example, four folding pieces folded back to one surface side (for example, the front surface side) of the thin plate are provided on one side in the width direction of the thin plate, and are positioned at the center. The dimension between the outer edges of the two folded pieces is the dimension of the inner surface of the mold, and the outer edges of the two folded pieces located in the center and the inner edges of the folded pieces located on both sides By setting the dimension between the two to be the flange dimension of the mold, it is possible to determine the width of the mold by sandwiching a pair of molds opposed to each other by the four folded pieces. In the same manner as described above, four folded pieces folded back on the other surface side of the thin plate are formed on the other side in the width direction of the locking member, so that the width of the pair of molds arranged on the other side surface It is possible to make a decision. Accordingly, it is possible to determine the widths of the adjacent molds with the locking member interposed therebetween.

  In the locking member formed of a thin plate, the position of the folded piece arranged on the outside is the same as the position of the piercing portion. In addition, when the piercing part including the folded piece is used, a Z-shaped piercing mark is formed on the heat insulating plate attached to the foundation concrete, and the strength of the heat insulating plate is reduced or the locking member is configured. There is a concern that the thermal bridge due to the material to be enlarged becomes large.

  For this reason, the concrete placed on the mold is solidified, and after the mold is removed, the folded piece protruding from the basic concrete is cut out so that the heat insulating plate can be easily pierced and formed on the heat insulating plate. It is preferable to form a latching portion that is as small as possible for piercing marks and that is sufficient to maintain the contact of the heat insulating plate with the side surface of the basic concrete for a long period of time. Thus, as a preparation means for cutting out the material of the locking member, there is a cut line formed along the line to be cut, and by forming such a cut line in advance, the formwork After removing, the locking member can be easily processed prior to attaching the heat insulating plate.

  In addition, when the locking member is composed of a thin rod, a screw is formed on the thin rod and a nut, a washer, etc. are attached, and the washer is passed through a pair of opposing molds. In this state, the width of the pair of molds can be determined by attaching and fastening a washer and a nut from the outside of the molds.

  First, prior to the description of the heat insulating basic structure according to the present invention, a preferred embodiment of the locking member will be described with reference to the drawings. FIG. 1 is a plan view of a main part for explaining the structure of a locking member according to the present embodiment. 2 is a side view and a front view of FIG.

The locking member A shown in FIG disposed between the upper and lower side are arranged in succession in direction a steel mold, the mold which is arranged opposite and in terms of each on both sides sandwiching the engagement member A It has a function to determine the width of the frame, a function to pierce the heat insulating plate when attaching the heat insulating plate to the side surface of the foundation concrete, and a function to lock the heat insulating plate in contact with the side surface of the foundation concrete. Has been.

  The locking member A is made of a thin stainless steel plate as a material, and has a width determining portion having four folded pieces 2a to 2d and 2e to 2h provided at symmetrical positions around the center 1 in the longitudinal direction on both sides in the width direction. 2, a piercing portion 3 disposed on at least one end side in the longitudinal direction, and a locking portion 4 provided continuously on the distal end side of the piercing portion 3. .

  In this embodiment, the piercing portion 3 and the locking portion 4 are formed on both ends in the longitudinal direction of the locking member A, respectively, but these are formed in the same shape, so that in FIGS. The structure of the piercing part 3 and the latching | locking part 4 formed in the right side of the center 1 is demonstrated.

  The width determining portion 2 has a function of positioning by positioning a steel mold frame 20 indicated by a two-dot chain line in FIG. 2 between the folded pieces 2a and 2b, 2c and 2d, 2e and 2f, 2g and 2h, respectively. is there. Therefore, the folded pieces 2a to 2d are folded back to the one surface (surface 5a) side of the locking member A, and the folded pieces 2e to 2h are placed to the other surface (back surface 5b) side of the locking member A. Wrapped.

  In each of the folded pieces 2a to 2h, the dimension between the folded pieces 2a and 2b, 2c and 2d, 2e and 2f, 2g and 2h is the width dimension of the flange 20a to sandwich the flange 20a of the steel mold 20 Have dimensions approximately equal to or greater than The dimensions of the outer edges of the folded pieces 2b and 2c and the dimensions of the outer edges of the folded pieces 2f and 2g are equal to the separation dimension (width dimension of the foundation concrete) of the molds arranged to face each other. .

The width determining unit 2 configured as described above, is traversed is brought into contact with the rear surface 5b on the flange 20a of the steel mold 20 which is arranged in pairs toward For example, folded on the back 5b side in this process By sandwiching the flanges 20a of the pair of steel molds 20 opposed by the folded pieces 2e to 2h, the widths of these steel molds 20 can be determined. At this time, the folded pieces 2a to 2d folded back to the surface 5a side stand up.

  Next, the newly installed steel is formed by arranging a new steel mold 20 between the folded pieces 2a to 2d standing above the already-installed steel mold 20, and continuing from side to side. It is possible to determine the width of the mold frame 20.

  Cut lines 6 are formed respectively connecting the outer edges of the folded pieces 2b and 2f and connecting the outer edges of the folded pieces 2c and 2h and across the locking member A. This cut line 6 is unnecessary because the concrete placed on the steel mold 20 is solidified and the mold is removed, and the folded pieces 2a, 2d, 2e, 2h protrude in the horizontal direction from the foundation concrete. This is for cutting out a portion (in the case of the present embodiment, a portion protruding on the side surface opposite to the side surface to which the heat insulating plate is attached).

  The piercing part 3 has a length corresponding to the thickness of the heat insulating plate to be attached to the side surface of the foundation concrete, and the base point of the piercing part 3 is a position corresponding to the side surface of the foundation concrete. In the present embodiment, the cut line 6 formed across the locking member A serves as the base point of the piercing portion 3, and the locking portion 4 provided at a position corresponding to the thickness t of the heat insulating plate from the cut line 6. Up to the refracting line 7 that constitutes the boundary with the pierced portion 3 functions.

  Further, a locking portion 4 is formed on the distal end side of the refractive line 7 in the locking member A. The locking portion 4 is configured to lock the surface of the heat insulating plate by refracting the distal end portion of the locking member A with the refraction line 7 as a base point. For this reason, the slit 8 is formed through the refractive line 7 from the longitudinal end of the locking member A, and the two locking pieces 4a are formed in the locking member A by the slit 8. .

  The length of the locking piece 4a (the length from the refraction line 7 to the end of the locking member A) is not particularly limited, and when the locking piece 4a is refracted with the refraction line 7 as a base point, The stop piece 4a should just be the length which can latch the surface of a heat insulation board in the stable state.

  In the present embodiment, the thickness t of the heat insulating plate is larger than the width dimension of the flange of the mold, and the portion corresponding to the piercing portion 3 in the locking member A is There are folded pieces 2d, 2h. For this reason, although the cross-sectional shape of the piercing part 3 becomes Z-shape and it is possible to pierce the heat insulating plate, there is a possibility that the piercing trace to the heat insulating plate becomes large and the thermal bridge becomes large as described above.

  Accordingly, a cut line 9a is formed in the locking member A from the end of the folded piece 2d on the side of the folded piece 2c toward the end in the longitudinal direction, and the end of the folded piece 2h on the side of the folded piece 2g is formed. A cut line 9b is formed toward the end in the longitudinal direction as a base point. The cut lines 9a and 9b are formed obliquely in a direction approaching each other toward the end of the locking member A, and the tapered piercing portion 3 is formed on the locking member A by the cut lines 9a and 9b. The locking portion 4 is formed continuously with the piercing portion 3.

  The above cut lines 6, 9a, 9b are constituted by a plurality of V-grooves formed with a predetermined interval and length with respect to the material of the locking member A, and the locking member A is exposed to the surface from the outside. 5a and back surface 5b are configured to be broken and excised by alternately applying force so as to bend in the direction of back surface 5b. However, the shape of the ablation lines 6, 9a, 9b should not be limited to this example. For example, the cutting grooves and the thickness of the cutting grooves may be formed by cutting grooves that are penetrated in the thickness direction using means such as laser cutting. Thin V-grooves can be alternately formed and configured, and it is preferable to select an appropriate shape in consideration of processing means and the like.

  In the figure, reference numeral 10 denotes a wedge hole formed penetrating in the thickness direction, and is a hole for inserting a wedge in order to prevent the formwork from expanding outward when concrete is placed.

  Moreover, although the dimension of the width direction of the locking member A is not specifically limited, it does not obstruct the placing work and the defoaming work by the vibrator necessary when placing concrete between the molds. Such dimensions are preferred.

  Next, a heat insulating basic structure using the locking member A configured as described above and a method for constructing the heat insulating basic structure will be described with reference to the drawings. FIG. 3 is a view for explaining a state in which the locking member A is attached to the flange of the mold and the width is determined. FIG. 4 is a diagram for explaining a state in which the locking member A is arranged between the molds continuously arranged in the vertical direction. FIG. 5 is a diagram schematically illustrating a procedure for attaching and locking the heat insulating plate to the locking member A protruding from the side surface of the foundation concrete. FIG. 6 is a schematic diagram for explaining a heat insulating basic structure.

As shown in FIG. 5, the locking member A is embedded in the foundation concrete B, and the piercing part 3 and the locking part 4 protrude in the horizontal direction. For this reason, the formwork C for constituting the foundation concrete B is constituted by a plurality of steel formwork 20 being continuous in the vertical direction and the left-right direction. And the locking member A is arrange | positioned between the steel mold frames 20 adjacent to the up-down direction, determines the width | variety of these adjacent steel mold frames 20, and is a locking part from this steel mold frame 20 4 is projected.

In particular, when the locking member A is disposed between the steel molds 20 adjacent in the vertical direction, the locking member A has at least the locking part 4 from the flange 20a of the steel mold 20 with the surface 5a facing upward. is that out butt in the horizontal direction.

  In this embodiment, the locking members A are arranged between the steel molds 20 adjacent in the vertical direction so that the surface 5a of the locking members A faces upward, and the widths of these steel molds 20 are determined. It is carried out.

  As shown in FIG. 2, the locking member A is disposed across the flanges 20 a of the pair of steel molds 20 disposed to face the lower side. At this time, the flange 20a of one steel mold 20 is sandwiched by the folded pieces 2e, 2f formed in the width direction of the locking member A, and the flange 20a of the other steel mold 20 is sandwiched by the folded pieces 2g, 2h. Is sandwiched. Thereby, it is possible to determine the width of the steel mold 10 disposed on the lower side.

  Although the pitch and the number of the locking members A arranged with respect to the steel mold 20 are not particularly limited, it is preferable to correspond to the heat insulating plate D to be attached to the foundation concrete B. For example, when the length of the heat insulating plate D is about 1200 mm, it is preferably 3 to 4 places, when it is about 600 mm, it may be 2 places, and when it is about 300 mm, it may be 1 place. .

  As described above, a plurality of locking members A are arranged at predetermined intervals on the flanges 20a of the pair of steel molds 20 arranged to face the lower side, and are then made to face each other on the upper side. The pair of molds 20 are arranged. At this time, the steel mold 20 arranged on the upper side inserts the lower flange 20a between the folded pieces 2a and 2b and between the folded pieces 2c and 2d, respectively. I will arrange so that.

  In the steel mold frame 20 arranged continuously in the vertical direction, the wedges 11 are driven into the holes 10 provided in the locking member A, whereby the positions of the end portions of the flanges 20a are defined. Further, a clip 21 sandwiches the upper and lower adjacent steel molds 20 and fixes them. Further, a steel mold 20 that is continuous from side to side is clamped and fixed by a clamp 22. A ruler plate (not shown) is attached to the flange 20a of the steel mold 20 arranged at the uppermost position to determine the width. In this way, it is possible to form the mold C by fixing the steel molds 20 continuous in the vertical and horizontal directions to each other.

  After the concrete is cast from above and defoamed in the same manner as in the normal operation, the mold C is solidified after a predetermined curing period. The steel formwork 20 which comprises is removed in order.

  When the mold C is removed, as shown in FIG. 5A, the end of the locking member A is exposed from the cut line 6. That is, the piercing part 3 including the folded pieces 2d and 2h and the locking part 4 protrude from the side surface of the foundation concrete B in the horizontal direction. Then, the folded pieces 2d and 2h are alternately folded with the cut lines 9a and 9b as base points, so that the folded pieces 2d and 2h are cut along the cut lines 9a and 9b.

  By cutting off unnecessary portions along the cutting lines 9a and 9b as described above, the longitudinal end portion of the locking member A is tapered toward the tip, and is substantially refracted from the side surface of the foundation concrete B. The piercing portion 3 is formed up to the line 7, and the locking portion 4 composed of the two locking pieces 4 a formed by the slits 8 on the distal end side of the refracting wire 7 is continuously configured.

  As described above, the heat insulating plate D is opposed to the side surface of the foundation concrete B from which the tapered piercing portion 3 and the locking portion 4 protrude, and in this state, the side surface of the foundation concrete B is made to approach. In this process, the locking portion 4 and the piercing portion 3 sequentially penetrate the heat insulating plate D, and the heat insulating plate D abuts against the side surface of the foundation concrete B by further approach.

  When the heat insulating plate D comes into contact with the side surface of the foundation concrete B, the locking piece 4a constituting the neck portion 4 of the locking member A protrudes from the heat insulating plate D. Further, in a state in which the heat insulating plate D is pressed against the side surface of the basic concrete B, the locking pieces 4a are bent with the refraction line 7 as a base point, and the locking pieces 4a are brought into pressure contact with the surface of the heat insulating plate D.

  Thereby, the heat insulation board D is attached to the side surface of the foundation concrete B, as shown in FIG.

  Next, the locking member E constituted by a thin rod and the procedure for attaching the heat insulating plate D to the side surface of the foundation concrete B by the locking member E will be described with reference to the drawings. FIG. 7 is a diagram illustrating a configuration in which the width of the mold is determined by the locking member. FIG. 8 is a diagram illustrating a procedure for attaching a heat insulating plate to the foundation concrete.

  The locking member E of the present embodiment is configured using a screw rod 25. As shown in FIG. 7, in the locking member E, a separator for determining the width of a generally used wooden mold 26 is constituted by a screw rod 25, and the screw rod 25 is arranged on a wooden mold on one side. 26 is configured to be able to pass through. Then, by arranging a flat 27 and a foam tie 28 on the front end side of the screw rod 25 and fastening them with a nut 29, it is possible to determine the width of the pair of wooden molds 26 arranged to face each other. is there.

  When the concrete cast on the wooden mold 26 is solidified and the wooden mold 26 is removed, the screw rod 25 protrudes from the side surface of the foundation concrete B in the horizontal direction as shown in FIG. In this embodiment, a part of the protruding screw rod 25 functions as a piercing portion, and the tip portion of the screw rod 25 and the set screw 30 function as a locking portion.

  Therefore, as shown in FIG. 8A, when the heat insulating plate D is brought close to the side surface of the foundation concrete B from which the screw rod 25 protrudes, the screw rod 25 pierces the heat insulating plate D in this approaching process. Further, after bringing the heat insulating plate D into contact with the side surface of the foundation concrete B, as shown in FIG. 5B, the washer 31 and the set screw 30 are attached to the screw rod 25 and the set screw 30 is fastened. Thus, the heat insulating plate D is firmly attached to the side surface of the foundation concrete B.

  In the present invention, when a heat insulating plate is attached to the side surface of the foundation concrete, by adopting a dry construction method that does not use an adhesive, it exhibits stable attachment performance without being affected by the skill of the worker. Is possible. For this reason, it can be used not only for the heat insulation structure of the basic concrete but also for the wall surface of a reinforced concrete building.

It is a principal part top view explaining the structure of the latching member which concerns on a present Example. It is the side view and front view of FIG. It is a figure explaining the state which attaches the locking member A to the flange of a formwork, and is performing width determination. It is a figure explaining the state which has arrange | positioned the locking member A between the formwork continuously arrange | positioned in the up-down direction. It is a figure which illustrates typically the procedure which attaches and latches a heat insulating board to the locking member A which protruded from the side surface of the foundation concrete. It is a schematic diagram explaining a heat insulation basic structure. It is a figure explaining the structure which determines the width | variety of a formwork with a locking member. It is a figure explaining the procedure which attaches a heat insulation board to foundation concrete.

A, E Locking member B Foundation concrete C Form D D Insulation plate 1 Center 2 Width determining part 2a-2h Folding piece 3 Puncture part 4 Locking part 4a Locking piece 5a Front surface 5b Back surface 6 Cut line 7 Refraction line 8 Slit 9a, 9b Cutting line 10 Wedge hole 11 Wedge 20 Steel formwork 20a Flange 21 Clip 22 Clamp 25 Screw rod 26 Wooden formwork 27 Horizontal flat 28 Form tie 29 Nut 30 Set screw 31 Washer

Claims (4)

It is a basic heat insulating structure in which a plate-like heat insulating material is attached to the side of the foundation concrete, and the plate-like heat insulating material pierced by the piercing portion that pierces the plate-like heat insulating material is locked. A thin plate-like locking member having a locking portion is embedded in the foundation concrete, the piercing portion is protruded horizontally from the side surface of the foundation concrete, and a plate-like heat insulating material is pierced through the piercing portion. A base heat insulating structure in which a plate-like heat insulating material is attached to a side surface of the basic concrete by abutting the pierced plate-like heat insulating material against the basic concrete and fixing it with a locking portion.   A mold in which a piercing portion for piercing a plate-shaped heat insulating material and a locking member having a locking portion for locking the plate-shaped heat insulating material pierced by the piercing portion are continued in the vertical and horizontal directions Place the locking part in the direction that protrudes from the mold frame with a predetermined spacing in the horizontal direction between the upper and lower or left and right mold frames in the frame, and place concrete on the mold frame to engage A part of the stop member is buried, and after the concrete is solidified, the formwork is removed to form foundation concrete in which the piercing portion of the locking member protrudes in the horizontal direction. The plate-like heat insulating material is fixed by a locking portion after the piercing portion is pierced and pressed through the piercing portion and pressed against the side surface.   A piercing portion corresponding to the thickness of the plate-like heat insulating material is formed toward the tip on at least one end side, and the piercing portion is continuous with the tip portion of the piercing portion in the longitudinal direction. And a locking portion having a refracted line formed in an orthogonal direction. A function of determining the separation dimension between the opposing molds arranged at the joints of the molds arranged continuously in the vertical direction and facing each other, and a function of attaching a plate-like heat insulating material to the side surface of the foundation concrete A locking member having
It consists of a plate-like body consisting of long and short sides,
On the one side of the long side of the plate-like body, four downward folding pieces folded downward so as to sandwich the upper flanges of a pair of molds arranged facing the lower side at a predetermined interval are the plate-like shape. On the other side of the long side of the body, there are four upward folded pieces folded upward so as to sandwich a lower flange of a pair of molds arranged facing the upper side at the same interval as the downward folded pieces, respectively. Formed,
A piercing portion having a length corresponding to the thickness of the heat insulating material on at least one side of the short side of the plate-like body, and the heat insulating material pierced through the heat insulating material continuous with the piercing portion and the side surface of the foundation concrete In order to form a locking part for locking the heat insulating material by being refracted after being brought into contact with, a cutting line for cutting at least the folded piece located outside the mold is formed, A locking member , wherein a refracting line serving as a base point of refraction of the locking portion is formed at a boundary between the piercing portion and the locking portion .

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