JP6110831B2 - Folded plate roof and lower plate - Google Patents

Description

  The present invention relates to a folded plate roof, a lower roof plate, and a tight frame.

  Conventionally, as folded plate roofs for chemical factories, food factories, cold storage factories, warehouses, spinning factories, paper factories, gymnasiums, etc., two insulating plates are sandwiched between upper and lower folded plates. A double-folded folded roof is known.

  FIG. 11 is a perspective view showing a conventional double-layer folded plate roof. As shown in FIG. 11, a conventional folded plate roof 200 has a double structure of an upper folded plate 201 and a lower folded plate 202. Although not shown, the lower folded plates 202 adjacent to each other are connected via a suspension fixed to the tight frame, and the upper folded plates 201 adjacent to each other are provided on the lower folded plate 202. They are connected via a suspension fixed to the suspension support.

  A space between the upper folded plate 201 and the lower folded plate 202 is filled with a heat insulating material such as glass wool. Thereby, the folded-plate roof 200 has a heat insulation effect.

  However, in the folded-plate roof 200 as described above, when the ceiling is looked up from the inside of the building structure, the ridges and valleys of the lower folding plate 202 are visually recognized. Is low. Although it may be possible to construct a suspended ceiling separately, in this case, since the suspended ceiling is constructed below the steel base, severe restrictions are imposed on the government ordinance.

  A ceiling-integrated heat-insulated folded-plate roof is also known. In this heat-insulated folded-plate roof, a joiner (supporting member) is disposed on a steel base, and a flat heat-insulating plate is laid on the joiner. By using a flat heat insulating material, unlike the case where the lower folded plate is rolled, the peak and valley are not visually recognized on the bottom surface. However, the boundary between the joiner and the heat insulating plate appears on the ceiling.

  Further, in the conventional folded plate roof, when an excessive load is applied to the roof, the tight frame may not be able to withstand the load and may be destroyed. Therefore, the strength of a conventional tight frame is insufficient as a tight frame used for folded plate roofs in heavy snow areas.

  Then, this invention is made | formed in view of said subject, The objective is to provide the folded-plate roof excellent in the aesthetics as a ceiling. Another object of the present invention is to provide a high strength tight frame.

  In order to solve the above-described problems, a folded plate roof of the present invention is provided with an upper folded plate, a tight frame disposed on a beam and supporting the upper folded plate, and the upper folded plate. A plurality of lower gutter plates provided, and the lower gutter plate includes a main body portion having a planar lower surface and a coupling portion for coupling to the tight frame, When the lower plate is connected to the tight frame, the lower surfaces of the plurality of lower plate are integrated to form a flat bottom surface.

  According to said structure, since the bottom face of the folded-plate roof is comprised by the lower surface of the lower side board which is planar shape, it is flat (flat). Therefore, when looking at the bottom of the folded-plate roof from the inside of the building structure, it looks good and feels as if a suspended ceiling has been separately constructed.

  Moreover, in the conventional double heat insulation folded-plate roof, it was the structure which provides a heat insulating material between two folded plates. On the other hand, in the folded-plate roof of this invention, the lower side board has a planar-shaped main-body part, and is not a folded board.

  Therefore, when providing a heat insulating material between an upper folding plate and a lower folding plate, what is necessary is just to arrange | position a heat insulating material substantially flatly. Therefore, the amount of the heat insulating material necessary for filling the space between the upper folded plate and the lower folded plate is smaller than the amount of the insulating material necessary for the conventional folded plate roof as shown in FIG. As a result, cost can be reduced.

  A configuration in which the lower base plates adjacent to each other are connected to the tight frame so that the end portions of the main body portions of the adjacent lower base plates overlap each other.

  According to said structure, since a part of lower surface of the mutually adjacent lower collar board has overlapped, a clearance gap is not formed between mutually adjacent lower collar boards. Therefore, when looking at the bottom of the folded-plate roof from the inside of the building structure, it looks good and feels as if a suspended ceiling has been separately constructed.

  The lower lower plate includes a first lower lower plate and a second lower lower plate that are adjacent to each other, and the second lower lower plate has a second overlapping portion whose lower surface overlaps the first lower lower plate, A lower non-overlapping portion whose lower surface does not overlap the first lower flange plate, and the portion of the portion overlapping the second overlapping portion is between the second overlapping portion and the second non-overlapping portion. The structure provided with the level | step difference corresponding to the thickness of a 1st lower gutter board may be sufficient.

  According to said structure, since the level | step difference corresponding to the thickness of the 1st lower base plate is provided in the lower surface of the 2nd lower base plate, the 1st lower base plate and the 2nd lower base plate are piled up. When they are combined, the lower surface of the second overlapping portion and the lower surface of the first lower plate are substantially the same height. Thereby, it visually recognizes that the 1st lower gutter board and the 2nd lower gutter board form the same plane. As a result, it is difficult to visually recognize the boundary between the adjacent lower roof plates, and it is possible to further improve the aesthetics when the bottom surface of the folded plate roof is viewed from the inside of the building structure.

  The tight frame may include a protruding portion that protrudes laterally, and the connecting portion may be configured to be hooked on the protruding portion.

  According to the above configuration, the lower plate can be connected to the tight frame with a simple configuration.

  The tight frame extends in the vertical direction from the base portion, the base portion, and has a main shaft portion having a support portion that supports the upper folded plate, and extends in the elevation direction from the base portion, and the base portion And a reinforcing portion that couples the main shaft portion.

  According to said structure, durability with respect to the pressure from upper direction improves. Thereby, even if it is a case where the load added to a support part via an upper folded plate by snow accumulation etc. becomes large, a tight frame can be supported without destroying.

  At least two of the reinforcing portions are provided, and the two reinforcing portions extend from two different points on the base portion across the main shaft portion in an elevation direction, and the two reinforcing portions are A configuration in which the main shaft portions are clamped to each other may be employed.

  According to said structure, durability with respect to the pressure added to a support part from upper direction further improves.

  In order to solve the above-mentioned problem, a lower plate of the present invention is a folded plate provided with an upper folded plate and a tight frame that is disposed on a beam and supports the upper folded plate. A lower gutter used for a roof, which has a plate-shaped main body and a connecting portion for connecting to the tight frame, and the main body has a flat bottom surface. It is characterized by.

  According to said structure, the folded-plate roof with a flat bottom face can be comprised by using the lower base plate which has a planar-shaped lower surface. Thereby, when the bottom surface of the folded-plate roof is viewed from the inside of the building structure, it is possible to configure the folded-plate roof that has a good appearance and excellent aesthetics as if a suspended ceiling has been separately constructed.

  In addition, by forming a double-layer folded plate roof using a lower plate having a planar lower surface, when a heat insulating material is filled between the upper plate and the lower plate, a conventional double plate is used. The amount of heat insulating material used can be reduced compared to the heat insulating folded plate roof, and as a result, the cost can be reduced.

  The lower surface may be provided with a step along one end of the main body, and the step may correspond to the thickness of the other end of the main body.

  According to the above configuration, when the plurality of lower collar plates are overlapped with each other, the lower surfaces of the plurality of lower collar plates have substantially the same height. Thereby, it visually recognizes that the lower surface of a plurality of lower collar boards forms the same plane. As a result, it is difficult to visually recognize the boundary between the adjacent lower roof plates, and it is possible to further improve the aesthetics when the bottom surface of the folded plate roof is viewed from the inside of the building structure.

  As the connection part, a first connection part and a second connection part for hooking on a protruding part protruding to the side of the tight frame are provided, and the first connection part is provided at one end of the main body part. The second connecting portion extends from the other end of the main body to the upper surface, extending from the first portion to the upper surface, and having a tip bent to the opposite side of the other end of the main body. The second connecting portion has a notch that is larger than the protruding portion. May be.

  According to said structure, the 1st connection part has the collar shape in which the front-end | tip bent on the opposite side to the other edge part of a main-body part, and a 2nd connection part has a front-end | tip at one end of a main-body part. It has a hook shape bent to the side of the part. For this reason, when the plurality of lower casing plates are rolled up so that the first connecting sections of the other lower casing plates overlap the second connecting sections of the lower casing plates, the second connecting sections of the lower casing plates and the other As for the 1st connection part of a lower collar board, the front-end | tip is mutually bent in the same direction. Thereby, the 2nd connection part of a lower collar board and the 1st connection part of another lower collar board can be piled up mutually without gap.

  Here, the second connecting portion has a hook shape with a tip bent toward one end side (that is, inside) of the main body portion. Therefore, in order to hook the second connecting portion on the protruding portion of the tight frame, it is necessary to relatively move the protruding portion to the inside of the second connecting portion.

  For this purpose, for example, it is conceivable that the protrusion is moved relative to the inside of the second connecting portion beyond the upper portion of the second connecting portion by relatively moving the lower saddle plate downward relative to the tight frame. . However, normally, the tight frame is provided on the beam, and this beam is obstructed, and the lower plate is moved relatively relatively downward with respect to the tight frame so that the protruding portion extends above the second connecting portion. It is not easy. Therefore, it is not easy to hook the second connecting portion on the protruding portion.

  On the other hand, since the 2nd connection part of the lower collar board of this invention is provided with the notch larger than a protrusion part, a protrusion part can pass through a notch. Therefore, the protruding portion can be relatively moved from the outside to the inside of the second connecting portion through the notch without relatively moving the lower saddle plate downward relative to the tight frame.

  Thereby, a 2nd connection part can be easily hooked to a protrusion part, and a lower collar can be connected to a tight frame.

  The structure which the heat insulation board was affixed on the upper surface of the said main-body part may be sufficient.

  According to said structure, since the heat insulation board is previously provided in the upper surface of the main-body part, it heat-insulates to a folded-plate roof by overlapping the connection part and connection part of each lower board, and rolling a lower board. An effect can be imparted. Therefore, the process of filling a heat insulating material between the upper folded plate and the lower folded plate can be omitted, and workability can be improved.

  In order to solve the above problems, the tight frame of the present invention is a tight frame that supports the folded plate of the folded plate roof, and extends in a direction substantially perpendicular to the base and the bottom of the base. And a main shaft portion having a support portion that supports the folded plate, and a reinforcing portion that extends from the base portion in an elevation angle direction and connects the base portion and the main shaft portion. To do.

  According to said structure, when a tight frame is used for a folded-plate roof, durability of the folded-plate roof with respect to the pressure from upper direction improves. Thereby, even if it is a case where the load added to a support part via an upper folded plate by snow accumulation etc. becomes large, a tight frame can be supported without destroying.

  At least two of the reinforcing portions are provided, and the two reinforcing portions respectively extend from two different points in the base portion with the main shaft portion interposed therebetween, and the two reinforcing portions are connected to the main shaft. The structure may be fastened to each other with the part interposed therebetween.

  According to said structure, durability with respect to the pressure added to a support part from upper direction further improves.

  The present invention can provide a low-cost folded-plate roof with high aesthetics as a ceiling. In addition, a high-strength tight frame can be provided.

It is sectional drawing of the folded-plate roof which concerns on Embodiment 1 of this invention. It is the schematic which shows the structure of a tight frame, (a) is a front view, (b) is a side view. It is a one part perspective view of the folded-plate roof which shows the process of rolling a lower side board. It is sectional drawing of a folded-plate roof, (a) is sectional drawing which shows the state with which the heat insulating material was filled between the upper folding board and the lower folding board, (b) is frame surrounding part C of (a). FIG. It is a front view which shows the structure of a lower gutter board. It is a plan view of a folded plate roof, (a) is a ceiling plan view, (b) is a roof plan view. It is the schematic which shows the structure of the tight frame of the folded-plate roof which concerns on Embodiment 2 of this invention, (a) is a front view, (b) is a side view. It is a perspective view of the lower collar board concerning Embodiment 3 of this invention. (A)-(d) is a front view of the lower gutter board for demonstrating the process of spreading a lower gutter board. It is a front view which shows the structure of the lower collar board concerning Embodiment 4 of this invention. It is a perspective view which shows the conventional folded-plate roof of a double structure.

Embodiment 1
Hereinafter, it will be as follows if embodiment of this invention is described based on FIGS.

  FIG. 1 is a cross-sectional view of a folded plate roof 100 of the present embodiment. As shown in FIG. 1, the folded plate roof 100 includes an upper folded plate 10, a tight frame 20, and a lower folded plate 30 provided to face the upper folded plate 10. The folded plate roof 100 has a double folded plate structure. As will be described later, a heat insulating material 40 such as glass wool may be filled between the upper folded plate 10 and the lower folded plate 30.

  The tight frame 20 is disposed on the steel base 50 (beam). The tight frame 20 may be welded on the steel base 50 or may be bolted. A hanging element 21 is fixed to the tight frame 20. The folded plate roof 100 includes a plurality of upper folded plate 10, and the adjacent upper folded plates 10 are fastened together via a hanging element 21.

<Tight frame>
2A and 2B are schematic views showing the configuration of the tight frame 20, wherein FIG. 2A is a front view and FIG. 2B is a side view.

  As shown in FIG. 2A, the tight frame 20 is provided so as to sandwich the main shaft portion 23 extending from the base portion 22 in the vertical direction (direction perpendicular to the bottom surface of the base portion 22) and the main shaft portion 23 from the outside. The two reinforcing parts 24 are provided.

  Further, as shown in FIG. 2B, the tight frame 20 includes a protruding portion 27 that protrudes from the main shaft portion 23 on both sides (in a direction perpendicular to the steel base 50). The protrusion 27 has a flat plate shape.

  The main shaft portion 23 is composed of two steel members and is bent at the upper end portion thereof, and constitutes a support portion 25 for supporting the upper folded plate 10.

  The reinforcing portion 24 extends in the elevation direction from two different points on the base portion 22, and connects the base portion 22 and the main shaft portion 23. Thus, a substantially triangular shape is formed by the base portion 22 and the two reinforcing portions 24.

  The two reinforcing portions 24 are fastened to each other at the fastening portion 26 with the main shaft portion 23 interposed therebetween. As the fastening method, for example, caulking, bolting, or the like can be applied.

  With the configuration of the tight frame 20 as described above, durability against pressure from above is improved. Therefore, even if the load applied to the support portion 25 via the upper folded plate 10 is increased due to snow accumulation or the like, the tight frame 20 can be supported without breaking the tight frame 20.

  In addition, although the case where the tight frame 20 is applied to the folded-plate roof 100 of a double folded plate is demonstrated as description of this embodiment, the use of the tight frame 20 is not restricted to this. The tight frame 20 including the main shaft portion 23 and the reinforcing portion 24 can also be applied to, for example, a single-folded folded-plate roof. In this case, the protrusion 27 is not necessary.

<Lower board>
FIG. 3 is a perspective view of a part of the folded-plate roof 100 showing the process of rolling the lower roof plate 30.

  As shown in FIG. 3, the lower collar plate 30 has a width corresponding to the interval between two adjacent tight frames 20. Further, the lower saddle plate 30 has a length corresponding to the interval between two adjacent steel bases 50. That is, one sheet of the lower steel plate 30 is provided so as to crawl an area defined by two adjacent tight frames 20 and adjacent steel bases 50.

  FIG. 4 is a cross-sectional view of the folded plate roof 100 of the present embodiment, (a) is a cross-sectional view showing a state in which the heat insulating material 40 is filled between the upper folded plate 10 and the lower folded plate 30, (B) is an enlarged view of the frame surrounding part C of (a). In FIG. 4, the tight frame 20 is indicated by a broken line for the sake of explanation.

  FIG. 5 is a front view showing the structure of the lower gutter plate 30.

  The folded plate roof 100 includes a plurality of lower heel plates 30, and the adjacent lower ridge plates 30 partially overlap each other. In the following, the detailed configuration of the lower eaves board 30 will be described by taking the lower eaves board 30A (first lower eave board) and the lower eave board 30B (second lower eave board) adjacent to the lower eave board 30A as an example. explain.

  As shown in FIG. 5, the lower collar plate 30 </ b> A includes a plate-shaped main body portion 31 </ b> A having a planar lower surface and two connecting portions 32 </ b> A. The lower collar plate 30B includes a main body portion 31B having a planar lower surface and two connecting portions 32B. The lower hook plate 30A and the lower hook plate 30B are connected to the tight frame 20 by the connecting portion 32A and the connecting portion 32B being hooked on the protruding portion 27 of the tight frame 20.

  The main body portion 31A of the lower collar plate 30A includes an overlapping portion 33A whose upper surface overlaps the lower flange plate 30B and a non-overlapping portion 34A whose upper surface does not overlap the lower flange plate 30B. The overlapping portion 33A is provided at the end of the main body portion 31A.

  Further, the main body portion 31B of the lower collar plate 30B includes an overlapping portion 33B (second overlapping portion) whose lower surface overlaps the lower flange plate 30A, and a non-overlapping portion 34B (second non-overlapping portion) whose lower surface does not overlap the lower flange plate 30A. ).

  In the example of FIG. 5, the lower collar plate 30A and the lower collar plate 30B are provided so that the overlapping portion 33B overlaps the overlapping portion 33A.

  As shown in FIG. 4B, the connecting portion 32A and the connecting portion 32B are connected to the protruding portion 27 of the tight frame 20 in a state where they overlap each other. You may adhere | attach the lower collar board 30A and the lower collar board 30B by apply | coating a hot melt to the clearance gap 36 between the coupling part 32A and the coupling part 32B. Thereby, the folded-plate roof 100 can be made into an airtight construction method.

  As shown in FIG. 4B and FIG. 5, a step 35B is provided between the overlapping portion 33B and the non-overlapping portion 34B. The step 35 </ b> B has a height corresponding to the thickness of the lower lower plate 30 </ b> A that overlaps the overlapping portion 33 </ b> B. That is, the step 35B is provided along one end of the main body 31B, and the step 35B corresponds to the thickness of the other end of the main body 31B.

  Thereby, when the connection part 32A and the connection part 32B are connected to the protrusion part 27 of the tight frame 20, the lower surface of the non-overlapping part 34B and the lower surface of the overlapping part 33A have substantially the same height. Thus, the lower surface of the main body portion 31 </ b> A and the lower surface of the main body portion 31 </ b> B are integrated, and the lower roof plate 30 constitutes a flat bottom surface of the folded plate roof 100. Note that the lower surface of the lower saddle plate 30 is positioned above the bottom surface of the steel frame base 50.

  Further, as shown in FIG. 4A, in the folded plate roof 100 of the present embodiment, the lower roof plate 30 has a connecting portion 32 but has a flat shape as a whole. What is necessary is just to arrange | position the heat insulating material 40 to.

  Therefore, the amount of the heat insulating material 40 necessary for filling the space between the upper folding plate 10 and the lower folding plate 30 is compared with the amount of the insulating material necessary for the double folded plate roof as shown in FIG. Few. As a result, the folded plate roof 100 can reduce the manufacturing cost.

  In the above description, the main body portion 31A of the lower collar plate 30A and the main body portion 31B of the lower collar plate 30B overlap each other, but the present invention is not limited to this. It is sufficient that at least the lower surfaces of the plurality of lower plate 30 are integrated to form a flat bottom surface. For example, even if the lower plate 30A and the lower plate 30B do not overlap, they are arranged close to each other without a gap. It only has to be done.

<Ceiling>
FIG. 6 is a plan view of the folded-plate roof 100 of this embodiment, (a) is a ceiling plan view, and (b) is a roof plan view.

  Since the upper folding plate 10 is wound on the folded plate roof 100, as shown in FIG. 6B, the mountain portions 12 and the valley portions 13 are alternately arranged on the upper surface of the folded plate roof 100. Is done.

  On the other hand, the lower roof plate 30 is covered with the folded-plate roof 100, and the bottom surface of the folded-plate roof 100 is constituted by the lower surface of the lower roof plate 30, so that the mountain portion and the valley portion are not arranged. Is flat.

  Moreover, since a part of mutually adjacent lower collar plates 30 overlap, no gap is formed between the adjacent lower collar plates 30.

  Furthermore, since the lower surface of the non-overlapping portion 34 of the lower heel plate 30 and the lower surface of the overlapping portion 33 and the non-overlapping portion 34 of the adjacent lower heel plate 30 have substantially the same height, It is visually recognized that the lower surface forms the same plane. In FIG. 6A, for the sake of explanation, the boundary line between the adjacent lower collar plates 30 is illustrated, but in reality, the boundary between the lower collar plates 30 is hardly visible and is not conspicuous. Furthermore, for example, by using a material having a woodgrain pattern as the lower plate 30, it is possible to make the boundary between the lower plates 30 less visible.

  As described above, according to the folded plate roof 100 of the present embodiment, it is possible to improve the appearance when the ceiling is viewed from the inside of the building structure without providing a suspended ceiling below the steel base 50. .

[Embodiment 2]
The following will describe another embodiment of the present invention with reference to FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  FIG. 7 is a schematic diagram illustrating the configuration of the tight frame 120 of the present embodiment, where (a) is a front view and (b) is a side view.

  In the description of the first embodiment, the tight frame 20 provided with the reinforcing portion 24 is exemplified as the tight frame. However, the tight frame 120 of the present embodiment does not include the reinforcing portion 24.

  On the other hand, the tight frame 120 has the protruding portion 27 as in the tight frame 20 of the first embodiment.

  Even if it does not have the reinforcing part 24 as in the tight frame 120, the lower plate 30 can be connected by having the protruding part 27.

  Therefore, when strength is not required, the tight frame 120 may be used instead of the tight frame 20 of the first embodiment.

[Embodiment 3]
The following will describe another embodiment of the present invention with reference to FIGS. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  FIG. 8 is a perspective view of the lower collar plate 130 according to the present embodiment.

<Connecting part>
The lower collar plate 130 of this embodiment forms a main body 31, a connecting portion 32 (first connecting portion), and a connecting portion 132 (second connecting portion) by bending one plate material. . The connecting portion 32 extends substantially vertically from one end of the main body portion 31 to the upper surface, and the connecting portion 132 extends substantially vertically from the other end facing the one end to the upper surface. Yes.

  More specifically, the main body portion 31 of the lower gutter plate 130 includes a superposition portion 33 whose lower surface overlaps with the other lower gutter plate 130, a superposition portion 37 whose upper surface overlaps with the other lower gutter plate 130, and other lower gutters. The connecting portion 132 extends from the boundary portion between the overlapping portion 37 and the non-overlapping portion 34 on the upper surface of the main body portion 31. That is, the connecting portion 132 is provided from the other end portion of the main body portion 31 with an interval equivalent to the distance between the step 35 and the connecting portion 32.

  In the cross section when the lower flange plate 130 is cut in a direction perpendicular to the one end portion, the connecting portion 32 has a hook shape whose tip is bent to the opposite side to the other end portion. 132 has a hook shape with a tip bent toward one end. It should be noted that the most distal end portion 39 of the connecting portion 32 and the most distal end portion 139 of the connecting portion 132 are bent to the outside of the hook shape in order to facilitate the introduction of the protruding portion 27 inside the hook shape.

  According to the above configuration, when the connecting portion 32 of the other lower collar plate 130 is superimposed on the connecting portion 132 of the lower collar plate 130 from above, the connecting portion 132 of the lower collar plate 130 and the other lower collar plate 130 are overlapped. The ends of the connecting portions 32 are bent in the same direction. Therefore, the connecting portion 132 and the connecting portion 32 can be hooked on the protruding portion 27 of the tight frame 20 in a state where the connecting portion 132 and the connecting portion 32 are overlapped with each other without a gap.

<Notch>
Further, the connecting portion 132 has notches 38 at both ends. The size of the notch 38 is larger than the size of the protruding portion 27 of the tight frame 20 on which the connecting portion 132 is hooked.

  Here, the hook shape of the distal end portion of the coupling portion 32 is such that the distal end opens toward the side opposite to the other end side of the main body portion 31 (that is, the outer side), and As for the shape, the tip is opened toward one end side (that is, inside) of the main body 31. Therefore, in order to hook the connecting portion 132 on the protruding portion 27 of the tight frame 20, it is necessary to relatively move the protruding portion 27 to the inside of the connecting portion 132.

  In the case of the lower saddle plate 30 of the first embodiment, as shown in FIG. 3, the lower saddle plate 30 is relatively moved so as to approach from the upper side of the tight frame in order to hook the connecting portion 132 to the protruding portion 27 of the tight frame 20. In this case, the main body 31 becomes an obstacle, and it is not easy to relatively move the protruding portion 27 to the inside of the connecting portion 132. Further, for example, it is also conceivable that the projecting portion 27 is moved relative to the inside of the connecting portion 132 beyond the upper portion of the connecting portion 132 by largely moving the lower saddle plate 130 downward relative to the tight frame 20. However, the beam 50 is in the way, and it is not easy to move the lower saddle plate 130 relative to the tight frame 20 greatly downward. Therefore, it is not easy to hook the connecting portion 132 to the protruding portion 27.

  On the other hand, the protrusion 27 can pass through the notch 38 by providing the notch 38 in the connecting portion 132 of the lower collar plate 130. Therefore, the protruding portion 27 can be relatively moved from the outside to the inside of the connecting portion 132 via the notch 38. Hereinafter, the process of rolling the lower plate 130 will be described.

  FIG. 9 is a front view of the lower plate for explaining the process of rolling the lower plate 130.

  In the step of rolling the lower plate 130, as already described, the connecting portions 32 and 132 of the lower plate 130 are hooked on the protruding portions 27 of the tight frame 20, and the lower plate 130 is connected to the tight frame 20.

  In this step, first, as shown in FIG. 9A, the tight frames 20 adjacent to each other in a state where the lower collar plate 130 is inclined so that the connecting portion 132 is positioned below the connecting portion 32. The lower saddle plate 130 is lowered from above between the protrusions 27 of the above.

  Secondly, as shown in FIG. 9B, the lower collar plate 130 is lowered until the horizontal position (height) of the protrusion 27 and the horizontal position (height) of the notch 38 are substantially the same. Thereafter, the lower collar plate 130 is moved in the horizontal direction to bring the protrusion 27 and the notch 38 closer to each other. At this time, the connecting portion 32 is positioned above the projecting portion 27.

  Third, as shown in FIG. 9C, the lower collar plate 130 is further moved in the horizontal direction to cause the protrusion 27 to pass through the notch 38. Thereby, the protrusion 27 is relatively moved to the inside of the connecting portion 132 (the space between the connecting portion 132 and the connecting portion 32).

  Fourth, as shown in FIG. 9D, the connecting portion 32 and the connecting portion 132 are hooked on each of the two protruding portions 27.

  Thereby, the connection part 132 can be easily hooked to the protrusion part 27, and the lower collar board 130 can be connected to the tight frame 20. FIG.

[Embodiment 4]
The following will describe another embodiment of the present invention with reference to FIG. For convenience of explanation, members having the same functions as those described in the embodiment are given the same reference numerals, and descriptions thereof are omitted.

  FIG. 10 is a front view showing the structure of the lower gutter plate according to the present embodiment.

  A heat insulating plate 41 that is a plate-like heat insulating material is provided on the upper surface of the main body 31 in advance in the lower collar plate 230 of the present embodiment. The heat insulating plate 41 may be bonded to the upper surface of the main body 31 with an adhesive, for example.

  In the folded-plate roof 100 of Embodiment 1, it was necessary to fill the insulating material 40 between the upper-folded folded plate 10 and the lower-folded plate 30 after rolling the lower-folded plate 30.

  Moreover, in the folded-plate roof 100 of Embodiment 1, when filling the heat insulating material 40 between the upper-folded folded plate 10 and the lower-folded plate 30, since the connection part is provided in the lower-folded plate 30, FIG. As shown in 4 (a), the heat insulating material 40 swells at the connecting portion of the lower collar plate 30, and it is not easy to provide the heat insulating material 40 flat.

  On the other hand, since the heat insulation board 41 is previously provided in the upper surface of the main-body part 31, the lower collar board 230 of this embodiment overlaps the connection part 32A and the connection part 32B, as shown in FIG. A heat insulating effect can be imparted by rolling the lower plate 230A / 230B. Therefore, the step of filling the heat insulating material can be omitted, and workability can be improved.

  Furthermore, the heat insulating plate 41 is provided on the upper surfaces of the main body portions 31A and 31B, and is not provided on the upper surfaces of the connecting portions 32A and 32B. Therefore, the heat insulating plate 41 can be disposed flatly between the upper folded plate 10 and the lower folded plate 230. Thereby, the usage-amount of a heat insulating material can be reduced and cost can be reduced.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The present invention can be used for a double-layer folded plate roof.

DESCRIPTION OF SYMBOLS 10 Upper folding plate 20, 120 Tight frame 22 Base part 23 Main shaft part 24 Reinforcement part 26 Fastening part 27 Protrusion part 30 Lower side board 30A Lower side board (1st lower side board)
30B Lower plate (second lower plate)
32A, 32B connecting part 32 connecting part (first connecting part)
33A Superimposition unit 33B Superimposition unit (second superimposition unit)
34A Non-overlapping part 34B Non-superimposing part (second non-superimposing part)
35B Step 38 Notch 40 Insulation 50 Steel foundation (beam)
100 folded plate roof 132 connection part (2nd connection part)

Claims (10)

An upper folded plate,
A tight frame arranged on the beam and supporting the upper folded plate;
A plurality of lower platen plates provided facing the upper folded plate,
The lower steel plate has a main body portion having a lower surface that is a planar shape, and a connecting portion for connecting to the tight frame,
A folded-plate roof, wherein the lower base plate is connected to the tight frame so that the lower surfaces of the plurality of lower base plates are integrated to form a flat bottom surface.   2. The folded plate roof according to claim 1, wherein the end portions of the main body portions of the adjacent lower support plates overlap with each other by connecting the adjacent lower support plates to the tight frame. The lower lower plate includes a first lower lower plate and a second lower lower plate adjacent to each other,
The second lower cover plate includes a second overlapping portion whose lower surface overlaps the first lower cover plate, and a second non-overlapping portion whose lower surface does not overlap the first lower cover plate,
A step is provided between the second overlapping portion and the second non-overlapping portion so as to correspond to the thickness of the first lower gutter in a portion overlapping the second overlapping portion. The folded plate roof according to claim 2. The tight frame has a protruding portion protruding to the side,
The folded plate roof according to any one of claims 1 to 3, wherein the connecting portion is hooked on the protruding portion. The tight frame is
The base,
A main shaft portion extending in a vertical direction from the base portion and having a support portion for supporting the upper folded plate;
The folded plate according to any one of claims 1 to 4, further comprising a reinforcing portion that extends in an elevation angle direction from the base portion and connects the base portion and the main shaft portion. roof. Comprising at least two of the reinforcing parts,
Each of the two reinforcing portions extends in an elevation direction from two different points on the base portion across the main shaft portion,
The folded plate roof according to claim 5, wherein the two reinforcing portions are fastened to each other with the main shaft portion interposed therebetween. A lower plate used for a folded plate roof provided with an upper folded plate and a tight frame disposed on the beam and supporting the upper folded plate,
It has a plate-shaped main body part and a connecting part for connecting to the tight frame,
The said main-body part has the lower surface of a planar shape, The lower collar board characterized by the above-mentioned. The lower surface is provided with a step along one end of the main body,
The lower plate according to claim 7, wherein the step corresponds to the thickness of the other end of the main body. As the connection part, it comprises a first connection part and a second connection part for hooking on a protruding part protruding to the side of the tight frame,
The first connecting portion has a hook shape that extends from one end of the main body portion to the upper surface side and has a tip bent to the opposite side to the other end portion side of the main body portion,
The second connecting portion extends from the other end portion of the main body portion to the upper surface side, and has a bowl shape whose tip is bent toward one end portion side of the main body portion,
The lower gutter plate according to claim 7 or 8, wherein the second connecting portion is provided with a cutout larger than the protruding portion. The lower plate according to any one of claims 7 to 9, wherein a heat insulating plate is attached to the upper surface of the main body.

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