JP6541379B2 - Finishing material mounting structure - Google Patents

Description

  The present invention relates to an attachment structure for attaching a finish material, which is a surface decoration material, to the surface of an outer wall material attached to a frame of a building, and in particular, a stress concentration due to a drilling defect in an extruded cement plate. The present invention relates to a mounting structure for a finishing material capable of preventing a reduction in strength.

  Extruded cement sheets are widely used as exterior wall materials for buildings because of their light weight and high strength. In an outer wall structure using an extrusion cement board, generally, an angle to be a base material is fixed to a frame of a building, and a Z clip etc. fastened to the back of the extrusion cement board is locked to the angle. A molded cement board is attached.

  It is also practiced to attach a finish material, which is a surface decoration material such as a stone material, to the surface of the extrusion cement plate. Various finishing materials such as stone materials and tiles can be attached to the surface of an extruded cement plate directly with an adhesive or mortar, or attached to the extruded cement plate with a fitting for the finishing material. In such a mounting structure, since each finish does not follow the interlayer displacement of the plurality of extrusion-formed cement boards, the finish can not be attached across the joints of the plurality of extrusion-formed cement boards. Therefore, there is a limitation that the allocation of finishing materials must be performed in the plane of one extruded cement plate.

As a structure which can solve the allocation restriction | limiting of a finishing material, there exists an attachment structure of patent document 1, for example. In this mounting structure, a plurality of mounting base materials which are continuous in the horizontal direction are fixed at predetermined intervals in the vertical direction to the surfaces of a plurality of extruded cement plates via a fixing mechanism. , and any receiving metal placed in the hollow portion, and the anchor to penetrate the surface side substrate engagement vital extruded cement boards to the receiving metal, is Tightened on the surface side substrate in this anchor And a base plate to which the mounting base material is fixed. In this structure, a plurality of finishing materials are attached via a horizontally continuous mounting base material provided on the surfaces of a plurality of extruded cement plates, and the arrangement is related to the allocation of the extruded cement plates. It becomes possible to attach a finishing material.

Japanese Patent Laid-Open No. 2000-145092

  In the mounting structure described in Patent Document 1, an anchor such as a bolt for mounting a mounting base material is made to penetrate through the surface side base material of the extrusion cement plate. Therefore, a plurality of through holes must be provided in the extruded cement board. When a tensile force due to a negative pressure acts on the surface of the extruded cement plate, a bending deformation that causes the surface to bend outward is generated. At that time, it is assumed that a force is concentrated at a location where a plurality of through holes exist, and breakage occurs with a force smaller than the inherent bending resistance. Therefore, the allowable stress level is designed to be lower than the stress level when no through hole exists. Designing with a reduced allowable stress level leads to a reduction in the supporting span of the extruded cement plate, and for example, there is a problem that the restriction in the case of vertical installation in a building with a large floor height becomes large.

  Therefore, in view of the problems of the prior art, the present invention has an object to provide a mounting structure of a finishing material capable of maintaining the allowable stress degree of an extruded cement plate while eliminating the limitation of the allocation of finishing materials.

In the mounting structure of the finishing material of the present invention, a plurality of extruded cement plates in which a plurality of hollow portions are juxtaposed in one direction are attached to the frame of a building in a longitudinally stretched state, and the finishing material is applied to the surfaces of these extruded cement plates And a plurality of mounting base materials which are continuous in the horizontal direction at predetermined intervals in the vertical direction on the surfaces of the plurality of extrusion-molded cement plates via a retention mechanism. cage, wherein the hooking mechanism comprises a receiving metal, wherein installed in one of the hollow portion, and the anchor to penetrate the surface side substrate engagement vital the extruded cement boards to the receiving metal, the anchor And a base plate to which the mounting base material is fixed while being tightened to the surface-side base material, and extending in the vertical direction on the surface side of each of the extrusion cement plates in the mounting structure of the finish material. With longitudinal grooves are formed, the vertically groove anchor of the hooking mechanism is provided, the base plate of the hooking mechanism is installed in a state straddling the longitudinal groove with a space in said longitudinal groove, The base plate is characterized in that it is fastened outside the longitudinal groove .

  According to the attachment structure of the finishing material of the present invention, vertical grooves extending in the vertical direction are formed on the surface side of each extrusion cement plate, and anchors of a retention mechanism for attaching the finishing material in the vertical grooves. The provision of the metal fitting does not cause a reduction in strength due to stress concentration due to a hole formation defect. Therefore, the allowable stress of the extruded cement board can be maintained, and the design can be performed without lowering the allowable stress. As a result, it is not necessary to reduce the support span of the extruded cement plate, and the degree of freedom in the construction of the extruded cement plate can be maintained even when the finish material is attached. At the same time, a plurality of mounting base materials which are continuous in the horizontal direction are provided at predetermined intervals in the vertical direction via the fixing mechanism, and since the finishing materials are attached to these mounting base materials, It becomes possible to eliminate the allocation restriction.

  It is preferable that a plurality of the retaining mechanisms be configured on each of the extrusion cement plates, and a plurality of the anchors of the retaining mechanisms be provided in the same longitudinal groove. In this case, even when the plurality of extrusion-molded cement plates are displaced between the layers, the plurality of mounting base materials swing in the horizontal direction while maintaining the mutually parallel state. Therefore, the influence of the interlayer displacement of the plurality of extruded cement plates on the finish material is further reduced, and damage to the finish material can be reliably prevented.

  It is preferable that the vertical groove is formed in a substantially central portion in the horizontal direction of each of the extrusion cement plates. In this case, the mounting base material for attaching the finishing material can be smoothly rocked horizontally.

The base plate of the hooking mechanism that is installed in a state straddling the longitudinal groove. The contact area of the press-molded cement board and the base plate is small, when a plurality of extruded cement board has interlayer displacement, the base plate is easy to move, which is Tightened with the anchor, the attached base material more smoothly in the horizontal direction It can be rocked.

The hollow portion in which the bracket of the retaining mechanism is installed is formed in a substantially triangular shape in cross section that narrows toward the longitudinal groove, and the bracket follows the shape of the hollow portion. The hollow portion has a size such that horizontal outer edges thereof do not intersect other hollow portions on both sides in the thickness direction of the extrusion-formed cement plate, and the longitudinal groove is any of the above It is preferable that the hollow portion be formed with a width equal to or less than the widest width of the bottom side of the longitudinal groove which is substantially triangular in cross section . In this case, the reliability of the fastening mechanism is improved, and at the same time, the strength of the flutes can be reliably maintained.

  It is preferable that the finishing material is displaceably attached to the mounting base material. In this case, even when the mounting base material for attaching the finishing material swings in the horizontal direction, the displacement is absorbed, and the influence of the swinging on the finishing material can be reduced.

  It is preferable that a locking block is provided at the lower center in the width direction of each of the extruded cement plates. By providing the locking block, the extruded cement plate can be displaced between the layers with the locking block as a fulcrum, so that the mounting base material for attaching the finishing material can be rocked more smoothly horizontally.

  According to the present invention, since the strength reduction caused by the stress concentration due to the drilling defect does not occur, the allowable stress of the extrusion-formed cement plate can be maintained, and the design can be performed without lowering the allowable stress. As a result, it is not necessary to reduce the support span of the extruded cement plate, and the degree of freedom in the construction of the extruded cement plate can be maintained even when the finish material is attached. At the same time, a plurality of mounting base materials which are continuous in the horizontal direction are provided at predetermined intervals in the vertical direction via the fixing mechanism, and since the finishing materials are attached to these mounting base materials, allocation of finish materials There is no limit.

It is a longitudinal cross-sectional view which shows the attachment structure of the finishing material based on one Embodiment of this invention provided in the joint part of the extrusion-molding cement board of the upholstery. They are a cross-sectional view which shows the attachment structure of a finishing material, and the partially expanded view. It is a top view of an extrusion cement board. It is a longitudinal cross-sectional view which shows the attachment structure of the finishing material based on one Embodiment of this invention provided in the intermediate part of the extrusion-molded cement board of a vertical attachment. It is external appearance explanatory drawing which attached the finishing material by the attachment structure of finishing material. It is a partially expanded view of FIG. It is a graph showing the support span at the time of using the extrusion-formed cement board of this invention, and the conventional extrusion-formed cement board. It is an explanatory view showing the behavior of a plurality of finish materials when interlayer displacement arises in a plurality of extrusion cement boards. It is a top view showing the modification of an extrusion molding cement board. It is a top view showing the other modification of an extrusion cement board. It is a top view of the conventional extrusion cement board.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal cross-sectional view showing the attachment structure c1 of the finish according to the embodiment of the present invention provided at the joint portion of the longitudinally-extruded extrusion cement board 1, and FIG. 2 shows the attachment structure c1 of the finish It is a cross-sectional view shown. FIG. 3 is a plan view of the extrusion cement board 1. FIG. 4 is a longitudinal cross-sectional view showing the attachment structure c2 of the finishing material according to the embodiment of the present invention provided in the middle part of the longitudinally-extruded extrusion-molded cement board 1. In the longitudinal sectional views of FIG. 1 and FIG. 4, different cross-sectional positions are illustrated for each main member in the width direction of the figure for the purpose of structural description.

  A plurality of extruded cement plates 1 are attached to a frame of a building, and a plurality of finishing materials 15 are attached to the surface 1 h of the extruded cement plates 1. The extrusion-molded cement board 1 is manufactured by extruding a mixture obtained by kneading water, cement, aggregate, fibers and the like with an extrusion molding machine, curing and then cutting into a predetermined size. In the extrusion-molded cement board 1, a plurality of hollow portions 2 are formed in parallel with each other in the longitudinal direction which is the extrusion direction.

  The extrusion cement board 1 is attached to the frame of the building by the conventional vertical laying method. As shown in FIG. 1, an L-shaped angle 4 is fixed to a steel material 3 which is a housing, and a receiving angle 5 which is a base material extending in the horizontal direction is fixed to the L-shaped angle 4. The lower portion of the extrusion cement plate 1 is supported by the receiving angle 5. A hard packing 6 is provided between the receiving angle 5 and the rear side substrate 1 a of the extrusion cement plate 1.

  A Z-clip 9 is fixed to the extrusion cement plate 1 by a mounting bolt 7 and a square nut 8 or the like. The Z-clip 9 fixed to the extrusion cement plate 1 is engaged with the receiving angle 5 and the mounting bolt 7 is tightened so that the lower side of the extrusion cement plate 1 is fixed to the receiving angle 5. A rocking block 10 is installed at the lower center of the extrusion cement plate 1 in the width direction, and a sealing material 11, a drainage pipe 12, a drainage plate 13 and the like are provided on the front side of the extrusion cement plate 1.

A plurality of finishing materials 15 are attached to the surfaces 1 h of the plurality of extruded cement plates 1. These finishing materials 15 are attached using a mounting structure c1 of the finishing material. FIG. 5 is an explanatory view of the appearance where the finisher 15 is attached by the attachment structure c1 of the finisher, and FIG. 6 is a partially enlarged view of FIG. As shown in these figures, a plurality of mounting base materials 16 continuous in the horizontal direction are provided at predetermined intervals in the vertical direction on the surface 1 h of the plurality of extrusion cement plates 1. The fixing mechanism 17 for providing the mounting base material 16 on the surface 1 h of the extrusion cement plate 1 is, as shown in FIGS. 1 and 4, a bracket 20 installed in any hollow portion 2 and this bracket 20 an anchor fitting 21 which penetrates the surface side substrate 1b engagement vital extruded cement board 1 in fitting 20, a base plate attached base member 16 is fixed while being Tightened on the surface side substrate 1b in this anchor 21 And 22.

  The shape of the extruded cement board 1 to which the finishing material 15 is attached will be described with reference to FIG. The plurality of hollow portions 2 juxtaposed in one direction are constituted by a first hollow portion 2A having a substantially triangular cross section in which the receiving bracket 20 is installed, and a second hollow portion 2B for fastening the Z clip 9 and the like. ing. A longitudinal groove 23 extending in the vertical direction is formed on the surface side of the extrusion cement plate 1. The longitudinal groove 23 is formed at a position corresponding to the first hollow portion 2A.

  The first hollow portion 2 </ b> A having a substantially triangular cross section, in which the fitting 20 is installed, is formed so as to narrow toward the longitudinal groove 23. The top portion a1 on the longitudinal groove side of the first hollow portion 2A and the horizontal outer edges a2 are planar. The first hollow portion 2A is formed so that the horizontal outer edges a2 do not intersect the second hollow portion 2B which is the other hollow portion on both sides in the thickness direction of the extrusion cement plate. The sectional shape of the second hollow portion 2B for fastening the Z clip 9 is not particularly limited as long as the square nut 8 or the like can be installed.

  In the present embodiment, three longitudinal grooves 23 are formed in accordance with the number of first hollow portions 2A. The number of the longitudinal grooves 23 is not limited, and may be one, two or four or more. One of the three longitudinal grooves 23 of the present embodiment is formed in a substantially central portion in the horizontal direction of the extrusion cement plate 1, and the other two longitudinal grooves 23 have equal intervals on both sides thereof. It is formed.

The longitudinal groove 23 of the present embodiment is rectangular in cross section, and is formed with a width t2 equal to or less than the width t1 of the first hollow portion 2A. The inventor has found that the difference in the degree of stress produced in the surface portion of the extruded cement board 1 and the groove bottom portion of the longitudinal groove 23 corresponds to the distance from the horizontal line z passing through the centroid. Assuming that the distance from the groove bottom 23h of the longitudinal groove 23 to the horizontal line z passing through the center of the extrusion cement plate 1 is a, and the distance from the surface 1h of the extrusion cement plate 1 to the horizontal line z is (a / b) = (Stress degree generated in groove bottom portion of flute / stress degree generated in surface portion). In the present embodiment, the longitudinal grooves 23 are formed to satisfy the following relationship.
0.30 <(a / b) <0.80
A more preferable range of (a / b) is 0.40 to 0.70.

With respect to the retaining mechanism 17 for providing the mounting base material 16, the bracket 20 is rectangular in a plan view and formed in a substantially V-shaped cross section so as to conform to the shape of the first hollow portion 2A as shown in FIG. The receiving bracket 20 is installed in alignment with the inclined surface in the first hollow portion 2A having a substantially triangular cross section, and movement and rotation in the horizontal direction are restricted. The receiving fitting 20 is provided with a screwing portion 20 a. Anchor 21 is whole threaded bolt is surface-side substrate 1b through at groove bottom 23h of the longitudinal groove 23 corresponding to the first hollow portion 2A, is screwed to the threaded portion 20a of the receiving metal 20.

The base plate 22 is formed in a vertically long plate shape as shown in FIG. 5 and the like. As shown in FIG. 1, the base plate 22 is in contact with the surface 1 h of the extrusion cement plate 1, and the anchor 21 passes through the base plate 22. The nut 24 from the front end of the anchor 21 by tightening by screwing, a base plate 22 on the front surface side substrate 1b of extruded cement board 1 is Tightened, fitting 20 received within the first hollow portion 2A is fixed. As shown in FIG. 6 etc., the base plate 22 is installed in a state of straddling the longitudinal groove 23. That is, only the horizontal end portions 22a of the base plate 22 are in contact with the surface 1h of the extrusion cement plate 1, and the central portion 22b is not in contact with the surface 1h due to the presence of the longitudinal grooves 23.

  In the present embodiment, the retaining mechanism 17 for providing the mounting base material 16 is configured only in the longitudinal groove 23 in the substantially central portion in the horizontal direction among the plurality of longitudinal grooves 23 formed in the extrusion cement plate 1 ing. That is, the plurality of anchors 21 of the retaining mechanism 17 are provided in the same longitudinal groove 23. As shown in FIG. 5, a mounting base material 16 having an L-shaped cross section which is continuous in the horizontal direction is fixed to the plurality of base plates 22 by welding. The positions in the vertical direction of the retaining mechanisms 17 formed on the extruded cement plates 1 aligned in the horizontal direction coincide with each other, and the mounting base materials 16 are installed in a horizontal state.

  As shown in FIGS. 1 and 2, an S-type fastener member 25 is attached to a predetermined position of the mounting base material 16. A mounting hole for passing the mounting bolt 26 is formed in the mounting base material 16, and a cross-shaped mounting hole 25a is formed in the fastener member 25 as shown in FIG. The mounting bolt 26 is passed through the mounting hole 25 a of the fastener member 25 and the mounting hole of the mounting base material 16, and the fastener member 25 is attached to the mounting base material 16 by tightening with the nut 27. Since the attachment holes 25 a of the fastener member 25 are formed in a cross shape, the position and movement of the fastener member 25 relative to the attachment base material 16 are allowed.

  In the upper structure of the upper and lower parts of FIG. 1, the lower end pin 28 directed upward is fixed to the portion of the fastener member 25 where the finishing material 15 is disposed. In the lower structure of FIG. 1, the pin area 29 is formed as shown in FIG. 2 in the portion of the fastener member 25 where the finish 15 is disposed, and the upper end pin used with the fastener member 25 in the pin area 29. A laterally long pin hole 31 is formed to allow 30 to pass therethrough.

  The finishing material 15 of the upper structure of FIG. 1 is positioned by inserting the lower end pin 28 of the fastener member 25 at the lower end 15a thereof. The finish material 15 on the lower side of FIG. 1 is positioned by inserting the upper end pin 30 into the pin hole 31 of the fastener member 25 and inserting the upper end pin 30 into the upper end 15 b. The end surfaces 15a and 15b of the upper and lower finishing members 15 and 15 are put together, and the upper and lower fastener members 25 are sandwiched. As a result, the upper and lower finishing materials 15, 15 are attached to the surface 1h of the extrusion cement plate 1. Since the upper end pin 30 used with the lower fastener member 25 is passed through the laterally long pin hole 31, the lower finish 15 is attached to the mounting base 16 so as to be displaceable.

  In the cross-sectional view of FIG. 4 showing the attachment structure c2 of the finishing material provided in the middle part, the fastener member 35 is formed in a flat plate shape. A lower end pin 36 directed upward is fixed to the fastener member 35 at a portion where the finishing material 15 is disposed. Furthermore, in the fastener member 35, a pin area is formed in the portion where the finishing material 15 is disposed, and in this pin area, a laterally long pin hole is formed to allow the upper end pin 37 used with the fastener member 35 to penetrate. It is done.

  The upper surface finish 15 of FIG. 4 is positioned by inserting the lower end pin 36 of the fastener member 35 at the lower end 15a thereof. The finish 15 on the lower side of FIG. 4 is positioned by inserting the upper end pin 37 into the pin hole of the fastener member 35 and inserting the upper end 15 b into the upper end 15 b. The end surfaces 15a and 15b of the upper and lower finishing members 15 and 15 are put together, and the fastener member 35 is sandwiched. As a result, the upper and lower finishing materials 15, 15 are attached to the surface 1h of the extrusion cement plate 1. Since the upper end pin 37 used with the fastener member 35 is passed through the laterally long pin hole, the lower finishing material 15 is displaceably attached to the mounting base material 16. In the middle portion shown in FIG. 4, the configuration except that the upper and lower finish members 15, 15 are disposed using one retaining mechanism 17, mounting base material 16, fastener member 35, etc. is shown in FIG. It is similar to the configuration.

  In the attachment structures c1 and c2 of the finishing material of the present embodiment, the vertical groove 23 extending in the vertical direction is formed on the surface side of each extrusion cement plate 1, and the finishing material 15 is attached in the vertical groove 23. An anchor fitting 21 of the retaining mechanism 17 is provided. When bending deformation is generated in the extruded cement plate 1 due to external force, the degree of stress increases as the part is farther from the horizontal line z passing through the centroid. When bending deformation is applied so as to apply a tensile force to the surface side of the extrusion-formed cement board 1 in which the longitudinal grooves 23 are formed, the surface portion becomes the maximum stress generating position, and in the groove bottom 23h of the longitudinal groove 23 and its vicinity The stress generated is smaller than the surface portion.

  That is, even if there is a drilling defect for causing the anchor 21 to penetrate in the longitudinal groove 23, the stress concentrates at the time of bending deformation etc. at the surface portion without the drilling defect and the fracture occurs at the surface It will be from the part. When drilling on the smooth surface of a conventional extruded cement board, stress concentration on that portion results in a strength loss of about 30%. In the extrusion-formed cement board 1 used for the attachment structures c1 and c2 of the finish material of the present embodiment, such strength reduction does not occur because the drilling is performed in the longitudinal groove 23 in which the stress is not concentrated. As a result, there is no reduction in strength caused by stress concentration due to the hole formation defect.

  Therefore, the allowable stress of the extruded cement board 1 can be maintained, and the design can be performed without lowering the allowable stress. There is no need to reduce the supporting span of the extrusion cement board 1 and the freedom of construction of the extrusion cement board 1 can be maintained even when the finishing material 15 is attached. It is possible to

  The extruded cement board 1 with flutes of FIG. 3 used for the attachment structures c1 and c2 of the finish material of the present embodiment, and the extruded cement shown in FIG. 11 without flutes used for the attachment structure of the conventional finish material. The support span of board 100 was calculated. All used the thing of 80 mm in thickness. FIG. 7 is a graph comparing the support spans of both extruded cement plates. Although it depends on wind pressure, the support span of the extrusion cement board 1 used for the attachment structure c1 and c2 of the finish material is increased by about 20% over the support span of the conventional extrusion cement board 100 which has a drilling defect on the surface. It is recognized that From this result, in the extrusion-formed cement board 1 used for the attachment structures c1 and c2 of the finish material of the present embodiment, it is possible to extend the support span by about 20% as compared with the conventional case.

  In the past, in order to secure the support span of the extruded cement board when attaching the finishing material, there was also a case where the thickness of the extruded cement board was designed to be increased. Therefore, while the manufacturing cost of the extrusion-formed cement board rose, the increase in the construction cost by the increase in the weight of the extrusion-formed cement board was caused.

  By using the attachment structures c1 and c2 of the finishing material of the present embodiment, even when the finishing material 15 is attached, the support span can be maintained without increasing the thickness of the extrusion cement plate, and the manufacturing cost and the construction There is no increase in cost. In order to form the longitudinal grooves 23 in the extrusion cement plate 1, it is only necessary to change the shape of the die of the extruder, and the formation of the longitudinal grooves 23 does not increase the manufacturing cost. Therefore, the degree of freedom in the construction of the extruded cement board can be maintained without increasing the cost.

  It has been found that the difference in the degree of stress occurring in the surface portion and the groove bottom portion of the extruded cement board 1 corresponds to the distance from the horizontal line z passing through the center of the figure. Therefore, the bending stress of the surface portion of the extrusion cement plate 1 can be calculated from the dimensions and the centroid of the longitudinal groove 23 of the extrusion cement plate 1, and the strength design of the extrusion cement plate 1 in which the longitudinal groove 23 is formed It will be possible to do. In this embodiment, the distance from the groove bottom 23h of the longitudinal groove 23 to the horizontal line z passing through the center of the extrusion cement plate 1 is a, and the distance from the surface 1h of the extrusion cement plate 1 to the horizontal line z is b and Then, (a / b) is 0.3 to 0.80, and the strength of the extrusion-molded cement board 1 is maintained by forming the longitudinal grooves 23 in the numerical value range.

  A plurality of mounting base materials 16 continuous in the horizontal direction are provided at predetermined intervals in the vertical direction, and the finish material 15 is attached to the mounting base materials 16. Therefore, as shown in FIG. 8, since the plurality of extruded cement plates 1 can be displaced between the layers with the locking block as the fulcrum 32, the plurality of finishing members 15 are horizontally displaced together with the mounting base material 16. Thereby, even when a plurality of finishing materials 15 are attached across the joint of the extrusion-formed cement board 1, breakage of the finishing materials 15 can be prevented. Therefore, it becomes possible to eliminate the allocation restriction of the finishing material 15.

  Since the mounting base material 16 is attached at a position separated from the receiving metal fitting 20 installed in the first hollow portion 2A across the longitudinal groove 23, the base plate 22 can be attached by an elastic pressure contact force, and the anchor Adjustment of the tightening torque of the nut 24 of the fitting 21 becomes easy, and installation becomes easy. Since a plurality of retaining mechanisms 17 are formed on each extrusion cement plate 1 and a plurality of anchors 21 of these retaining mechanisms 17 are provided in the same longitudinal groove 23, the plurality of extrusion cement plates 1 Even when the interlayer is displaced, the plurality of mounting bases 16 swing in the horizontal direction while maintaining the parallel state. Therefore, the influence of the interlayer displacement of the plurality of extrusion-molded cement plates 1 on the finishing material 15 is further reduced, and damage to the finishing material 15 can be reliably prevented.

  Since the longitudinal groove 23 is formed in the substantially central portion in the horizontal direction in each extrusion cement plate 1, the mounting base material 16 for attaching the finishing material 15 can be swung smoothly in the horizontal direction. Since the base plate 22 of the retaining mechanism 17 is installed in a state of straddling the vertical groove 23, the contact area between the extrusion cement plate 1 and the base plate 22 tightened by the anchors 21 becomes small, and the base plate 22 moves. It is easier. Therefore, when the plurality of extrusion-molded cement plates 1 are displaced between the layers, the base plate 22 moves to follow and move the mounting base material 16 more smoothly horizontally.

  The receiving fitting 20 is formed in a substantially V-shaped cross section so as to follow the shape of the first hollow portion 2A formed in a substantially triangular shape in cross section which narrows toward the longitudinal groove 23, and the receiving fitting 20 in the horizontal direction Movement and rotation are regulated. The first hollow portion 2A is formed so that the horizontal outer edges a2 do not intersect the second hollow portion 2B which is the other hollow portion on both sides in the thickness direction of the extrusion cement plate. By these, the reliability of the fixing mechanism 17 can be improved. Furthermore, since the longitudinal groove 23 is formed with a width t2 smaller than the width t1 of the first hollow portion 2A, the strength of the longitudinal groove 23 can be reliably maintained.

  Since the finishing material 15 is attached to the mounting base material 16 so as to be displaceable, the displacement is absorbed even when the mounting base material 16 swings in the horizontal direction, and the influence of the swinging to the finishing material 15 Can be reduced. Since the rocking block 10 is provided at the lower center in the width direction of each extruded cement plate 1, the extruded cement board 1 can be displaced between the layers with the rocking block 10 as a fulcrum. Attachment for attaching the finishing material 15 by the fact that the extrusion cement plate 1 can be displaced between the layers with the locking block 10 as a fulcrum, and the longitudinal groove 23 is formed substantially in the center in the horizontal direction of each extrusion cement plate 1 The base material 16 can be rocked more smoothly horizontally.

  The present invention is not limited to the above embodiment. The disclosed embodiment is an illustration of the attachment structure of the finish according to the present invention and is not restrictive. The attachment structure of the extrusion-molded cement board to which the attachment structure of the finishing material of the present invention is applied is not limited. Extruded cement board used for mounting structure of finish material, square nut for attaching extrusion molded cement board, clip, mounting bolt etc., receiving bracket for attaching finish material, anchor metal fitting, base plate, mounting base material, fastener The members and other members provided as needed may have any form as long as the effects of the present invention are not impaired. In order to make the mounting base material swing more smoothly, a plate or a packing may be interposed between the extrusion cement plate and the base plate to reduce friction. As a plate for reducing friction, for example, a plate made of fluorine resin or polyethylene can be mentioned.

  A variety of shapes can be used as an extruded cement plate for forming the flutes. The shape of the longitudinal groove is not limited, and the longitudinal groove may be curved in cross section, or the side surface of the longitudinal groove may be inclined toward the groove bottom to make the longitudinal groove have a trapezoidal cross section or the like. The shapes and sizes of the plurality of longitudinal grooves formed in one extrusion cement plate may be different from each other. For example, in the case where three longitudinal grooves are formed in the extrusion cement plate, the longitudinal grooves on both sides of the longitudinal groove formed in the central portion in the horizontal direction may be smaller than the longitudinal grooves in the central portion in the horizontal direction. The number and shape of hollow portions of the extrusion cement plate are not limited.

  FIG. 9 is a plan view showing a modification of the extrusion cement plate, and FIG. 10 is a plan view showing another modification of the extrusion cement plate. In the extrusion cement plate 40 of FIG. 9, the first hollow portion 42A corresponding to the longitudinal groove 41, the other second hollow portions 42B, and the like are all formed in a square shape. The number of longitudinal grooves 41 formed in the extrusion-molded cement board 40 in this example is two. In the above-described embodiment and the extrusion cement plates 1 and 40 of FIG. 9, the width of the longitudinal grooves 23 and 41 is narrower than the width of the base plate 22 installed, but as in the extrusion cement plate 45 of FIG. The width of the longitudinal groove 46 may be wider than the width of the base plate 22. In this example, the base plate 22 is housed in the longitudinal groove 46. If the base plate 22 is configured to be accommodated in the vertical groove 46, for example, an L-shaped base plate whose lower portion is bent to the indoor side can be installed, and the lower portion can be joined to the base material of the extrusion cement plate.

1, 40, 45 Extruded cement plates 1a, 1b Back side base, front side base 1h Surface 2A, 2B First hollow part, second hollow part a2 Horizontal outer edge 3 Body 4 L type angle 5 Receiving angle 6 Hard Packing 7 Mounting bolt 8 Square nut 9 Z clip 10 Locking block 15 Finishing material 15a, 15b Lower end, upper end 16 Mounting base material 17 Retaining mechanism 20 Receiving bracket 21 Anchor bracket 22 Base plate 23, 41, 46 Vertical groove 23h Groove bottom 24 Anchor Bracket nut 25, 35 Fastener member 26 Mounting bolt 27 Nut 28, 36 Bottom pin 29 Pin area 30, 37 Top pin 31 Pin hole 100 Conventional extrusion cementing board c1, c2 Finishing material attachment structure t1 1st hollow part Width t2 vertical groove width z horizon through horizontal line a groove bottom from center That the distance from the distance b the surface of the extruded cement board to the horizon to the horizon

Claims (6)

A plurality of extruded cement plates in which a plurality of hollow portions are juxtaposed in one direction are attached to a frame of a building in a longitudinally stretched state, and the attachment structure of a finish is attached to the surface of the extrusion cement plates ,
On the surface of the plurality of extrusion cement plates, a plurality of mounting base materials which are continuous in the horizontal direction are provided at predetermined intervals in the vertical direction via a fixing mechanism,
The hooking mechanism includes a receiving metal, wherein installed in one of the hollow portion, and the anchor to penetrate the surface side substrate engagement vital the extruded cement boards to the receiving metal, wherein this anchor In a mounting structure of a finishing material, comprising: a base plate which is fastened to a surface side base material and to which the mounting base material is fixed;
Vertical grooves extending in the vertical direction are formed on the surface side of each of the extruded cement plates, and anchors of the retention mechanism are provided in the vertical grooves ,
A mounting structure of a finishing material , wherein a base plate of the fixing mechanism is installed in a state of leaving a space in the longitudinal groove and straddling the longitudinal groove, and the base plate is tightened outside the longitudinal groove .   A plurality of said retention mechanisms are constituted by said each extrusion molding cement board, and a plurality of said anchor metal fittings of these retention mechanisms are provided in the same said longitudinal groove, It is characterized by the above-mentioned. Mounting structure of finishing material.   The attachment structure of the finishing material according to claim 1 or 2, wherein the vertical groove is formed in a substantially central portion in the horizontal direction in each of the extrusion cement plates. The hollow portion in which the bracket of the retaining mechanism is installed is formed in a substantially triangular shape in cross section that narrows toward the longitudinal groove, and the bracket follows the shape of the hollow portion. The hollow portion has a size such that horizontal outer edges thereof do not intersect other hollow portions on both sides in the thickness direction of the extrusion-formed cement plate, and the longitudinal groove is any of the above The attachment of the finishing material according to any one of claims 1 to 3 , characterized in that it is formed with a width equal to or less than the widest width constituting the bottom of the hollow portion far from the longitudinal groove having a substantially triangular cross section. Construction. The attachment structure for a finish according to any one of claims 1 to 4 , wherein the finish is attached to the attachment base in a displaceable manner. The mounting structure of the finishing material according to any one of claims 1 to 5 , wherein a locking block is provided at a central lower portion in the width direction of each of the extruded cement plates.

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