JP6272289B2 - Connection structure between support member and lower folded plate roof, support member used for the same, and holding member for the support member - Google Patents

Description

The present invention is a connecting structure between the supporting member and arouses plate roof support used therefor, and a holding member of the support.

  Conventionally, a double folded plate roof structure in which an upper folded plate roof is installed above a lower folded plate roof via a support is known (see, for example, Patent Document 1). In the double folded plate roof structure described in Patent Document 1, the support attached between the upper folded plate roof and the lower folded plate roof pushes the helical joint protruding upward from the lower folded plate roof. It is fixed by pressing it with a bolt.

  When attaching the support, the installer can fix the lower folding plate roof by simply turning the push bolt without drilling in the lower folding plate roof or the tight frame, so that the installation can be easily performed. However, since the attachment strength is attached only by sandwiching the seam, the strength may not be sufficient depending on the building conditions.

  On the other hand, what was shown by patent document 2 is also known as a support tool used for a double folded plate roof structure. The support described in Patent Document 2 has a leg portion formed at the lower end portion thereof along the inclined surfaces on both sides of the mountain portion of the lower folded plate roof. This support is attached as follows.

  After confirming the position overlapping the tight frame on the lower folded plate roof, the installer places the support so as to overlap the tight frame directly over the lower folded plate roof. Thereafter, the drill screw is passed through the legs of the support and screwed into the lower folded plate roof and the tight frame. Thereby, the leg part of a support tool and a tight frame are connected via the drill screw.

JP 2008-13985 A JP 2009-62684 A

  According to this structure, since the tight frame and the support are firmly connected, the mounting strength of the support can be sufficiently ensured. However, in order to perform the above construction, it is necessary to penetrate not only the lower folded plate roof but also a tight frame formed of a thick metal strip, and the workability is poor.

The present invention has been made in view of the above circumstances, and the object of the present invention is to provide a connection structure between a support and a lower folded plate roof that can secure sufficient mounting strength and has good workability. support used, and to provide a holding member of the support.

  The connection structure between the support plate and the lower folding plate roof of the present invention is a connection between the lower folding plate roof and the upper folding plate roof attached to the tight frame, and the lower folding plate roof. A fixing metal fitting that is inserted from below through a through-hole that penetrates the lower folded plate roof at a portion shifted from the tight frame, and is arranged to come into contact with the back surface of the tight frame; In addition to the attachment of the fixing bracket to the support body, the holding fixture is provided with a holding portion that holds the fixing bracket so as not to fall.

  According to such a configuration, the position of the fixing bracket can be held in a state where the fixing bracket is inserted into the through hole. That is, since the fixing bracket can be held in a state of protruding from the lower folded plate roof, the builder can perform the operation of connecting the support body to the connecting portion using both hands.

Furthermore, support of the present invention is a support that will be disposed between arouses plate roof and upper folded plate roof attached to the tight frame, the support, the tight to the arouses plate roof It is passed through a through-hole penetrating from below at a portion displaced from the frame, and is fixed through a fixing bracket arranged so as to come into contact with the back surface of the tight frame. can be separated, and separately from the fixed between the support body and the fixing member, characterized in that it comprises a holding member for holding so as not to fall the fixing bracket.

Further, the holding member of the support of the present invention, there is provided a holding member for the support is provided with a pair of rest piece in which a pair of engaging portions are provided in a one-to-one, the mounting of the pair置片An elastic piece that elastically connects each other, and the pair of shaft-like portions of the fixing bracket are locked to the pair of locking portions to hold the fixing bracket. It is characterized by that.

In addition, the connection structure between the support and the lower folded plate roof of the present invention includes a support member disposed between the lower folded plate roof and the upper folded plate roof attached to the tight frame, and a joint fixing portion. It has a connection structure with the lower folded plate roof, and is passed from below through a through hole that penetrates the lower folded plate roof at a portion shifted from the tight frame, and is arranged to contact the back surface of the tight frame. a fixing bracket has the has a lower horizontal piece part formed immediately above the tight frame, and a support connected to the fixing bracket projecting from the through hole, the supporting member, the lower horizontal strip A vertical surface projecting upward from an end opposite to the helical joint fixing portion and an upper end of the vertical surface portion to the helical joint fixing portion side, the helical joint fixing portion An upper horizontal piece portion located above the upper horizontal piece portion, and the fixing bracket is connected to the upper horizontal piece portion. Characterized in that it is.

  Further, a support tool according to the present invention is a support tool provided in a connection structure between the support tool and the lower folded plate roof, and is disposed immediately above the tight frame and placed on the lower folded plate roof. It has a horizontal piece part.

Connecting structure between the supporting member and arouses plate roof of the present invention, support used therefor, and according to the holding member of the support, the mounting strength can be sufficiently ensured, moreover possible to improve the workability Can do.

It is principal part side sectional drawing of the double folded-plate roof structure of Embodiment 1. FIG. It is a support tool of Embodiment 1, (a) is a top view (b), a front view (c) is a side view. It is a perspective view in the state where a through hole was drilled in the lower folded plate roof of the first embodiment. It is a perspective view of the state which inserted the fixture in the through-hole of the lower folded board roof of Embodiment 1. FIG. It is a perspective view of the state which equipped the lower folding board roof of Embodiment 1 with the support tool. It is a perspective view of the state which equipped the lower folding board roof of Embodiment 1 with the support tool. In Embodiment 1, it is sectional drawing whose fixing metal fitting is a U volt | bolt. In Embodiment 1, it is sectional drawing of the state using a J-shaped fixing metal fitting. In Embodiment 1, it is sectional drawing of the state using the L-shaped fixing metal fitting. It is a perspective view of the drilling apparatus used for drilling in the case of construction of Embodiment 1. It is a figure of the other structure of a support tool, (a) is a top view (b) is a front view (c) is a side view. It is a figure of the further another structure of a support tool, and is a sectional side view of the state attached to the round goby part. It is a support tool of Embodiment 2, (a) is a top view (b), a front view (c) is a side view. It is a 1st main-body part of the support tool of Embodiment 2, (a) is a top view (b), A front view (c) is a side view. It is a holding | maintenance part of the support tool of Embodiment 2, (a) is a top view (b), A front view (c) is a side view. It is a perspective view which shows the state which attached the holding | maintenance part of Embodiment 2.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the double folded plate roof structure of Embodiment 1 includes a lower folded plate roof 2 laid on a tight frame 1, and a support 4 fixed on the lower folded plate roof 2. The upper folded board roof 3 is provided above the lower folded board roof 2 with the support 4 interposed therebetween. In the present embodiment, the lower folded plate roof 2 is an existing folded plate roof, and in order to repair the existing folded plate roof, the newly installed upper folded plate roof 3 is covered so as to cover the lower folded plate roof 2. It has been replaced. In this double folded plate roof structure, an upper folded plate roof 3 is laid above a lower folded plate roof 2 through a gap formed over the entire roof surface, and is configured to be two steps up and down. Yes.

  The tight frame 1 is mounted on a horizontal member A such as a purlin and fixes the lower folded plate roof 2. As shown in FIG. 1, the tight frame 1 of the present embodiment constitutes a main body and has a tight frame main body 12 in which a peak portion 10 and a valley portion 11 are continuously provided, and a peak of the tight frame main body 12. The hanging part 13 attached to the part 10 is provided.

  The tight frame main body 12 has a valley portion 11 into which the lower folded plate member 20 having a substantially U-shaped cross section is fitted, and a portion where the edges of the lower folded plate member 20 adjacently disposed along the longitudinal direction of the horizontal member A overlap each other. It has the peak part 10 located and the fixing | fixed part 14 which is a part fixedly attached to the horizontal member A. As shown in FIG. In the tight frame main body 12, the peak portions 10 and the valley portions 11 are alternately arranged in a straight line. The tight frame body 12 is formed by bending a strip-shaped metal plate having a thickness of about 2.5 to 3.2 mm. The fixing portion 14 of the tight frame main body 12 according to the present embodiment is configured by a back side portion of the valley portion 11 (a portion that comes into contact with the upper surface of the horizontal member A), and is placed on the horizontal member A. It is fixed by welding or the like. In addition, this fixing | fixed part 14 may be fixed not only by welding but through a fixing tool.

  The hanging element 13 is attached to the top of the peak portion 10 of the tight frame main body 12 via bolts and nuts. The hanging element 13 is configured to be fastened together with the ends of the adjacent lower folded plate members 20 stacked on the mountain portion 10, and fixes the lower folded plate member 20 by simultaneously fastening the three members. .

  The tight frames 1 are arranged adjacent to each other in a substantially straight line along the longitudinal direction of the horizontal member A, and a plurality of tight frames 1 are arranged in parallel in a direction perpendicular to the longitudinal direction. The tight frames 1 separated in the direction perpendicular to the longitudinal direction of the horizontal member A are arranged so as to be substantially parallel to each other. The direction in which the tight frames 1 are arranged is the roof gradient direction.

  In addition, as the horizontal member A, a purlin or a beam (including a small beam) of a building is raised. The horizontal member A is composed of, for example, an H-shaped rope, a C-shaped rope, a lip groove-shaped rope, or the like.

  The lower folded plate roof 2 laid on the tight frame 1 is configured by connecting a plurality of lower folded plate members 20 arranged along the longitudinal direction of the tight frame 1 to each other. The lower folded plate roof 2 forms an angular wave shape that is continuous in a direction perpendicular to the roof gradient direction by fixing the ends of the plurality of lower folded plate members 20 together. The lower folded plate roof 2 may be made of a roof material having a long cross-sectional angular wave shape not only in the roof gradient direction but also in a direction perpendicular to the roof gradient direction.

  The lower folded plate material 20 is formed by bending a steel plate (for example, a thickness of about 0.6 to 1.2 mm) long in the roof gradient direction into a substantially U-shaped cross section. When the lower folded plate 20 is installed, a pair of a bottom surface portion 21 along the bottom surface of the valley portion 11 of the tight frame 1 and a pair of the bottom folded plate materials 20 that are continuously connected upward from both ends in a direction perpendicular to the roof gradient direction. Each of the standing portions 22 and a joint piece 23 extending from the protruding end edge of each standing portion 22. The upright portion 22 is inclined so that the distance between the opposing portions increases toward the upper side, and has a shape along the inclination of the peak portion 10 of the tight frame 1. In such a lower folded plate member 20, the bottom surface portion 21, the standing portion 22, and the joint piece 23 are integrally formed by bending.

  The lower folded plate roof 2 is formed by sequentially connecting the lower folded plate members 20 having the above configuration in a direction perpendicular to the roof gradient direction. The installer arranges the lower folded plate material 20 so as to span the valley portions 11 of the separated tight frame 1. Next, the installer fixes the edges of the lower folded plate material 20 that overlap in a direction perpendicular to the roof gradient direction via the suspension 13 of the tight frame 1. Thereafter, the lower folded plate material 20 is sequentially fixed in the same manner, and the lower folded plate roof 2 is formed by repeating the operation over the entire roof surface.

  In addition, in the attachment of this lower folded board roof 2, it does not need to be joined by a hull fastening, For example, you may attach by a bolting or a fitting system.

  As shown in FIG. 1, the lower folded plate roof 2 has a shape in which convex portions and concave portions are repeatedly provided along the peak portion 10 and the valley portion 11 of the tight frame 1 in a state after construction. It has become. The convex portion of the lower folded plate roof 2 includes an inclined surface portion 24 formed along the inclination of the mountain portion 10 of the tight frame 1, an upper surface portion 25 positioned between the upper ends of the inclined surface portion 24, and the lower folded plate materials 20. And a joint fixing portion 26 that protrudes upward from a substantially intermediate position of the upper surface portion 25. The convex portion has a substantially uniform cross-sectional shape continuous in the roof gradient direction, and in the present embodiment, the convex portion is formed over substantially the entire length from the eaves to the ridge.

  The upper surface portion 25 is gradually inclined so as to be positioned upward as it approaches the joint fixing portion 26. Further, the seam joint fixing portion 26 is continuously formed over the entire length of the lower folded plate roof 2 in the roof gradient direction. In addition, although the joint fixing part 26 of this embodiment becomes a square goby shape, you may make it into a round goby shape (refer FIG. 12) and another shape. Further, in the case where a roof material is used for the lower folded plate roof 2, the seam fixing portion 26 is not formed. In this case, the seam fixing portion 26 may not be provided.

  When the lower folded plate roof 2 needs to be repaired due to generation of rust, corrosion, aging, etc., the upper folded plate roof 3 is laid so as to cover the lower folded plate roof 2. Thereby, even if it does not peel and remove the lower folding board roof 2, it becomes possible to install the newly installed upper folding board roof 3. Specifically, the support 4 is disposed on the lower folded plate roof 2, and the upper folded plate roof 3 is installed on the support 4.

  As shown in FIGS. 5 and 7, the support 4 is fixed to a fixing bracket 7 hooked on the tight frame 1, and is firmly attached by being fixed to the tight frame 1. The support 4 is disposed immediately above the tight frame 1 in the convex portion of the lower folded plate roof 2.

  As shown in FIG. 1, the support tool 4 includes a support tool main body 42 and a hanger 41 that fixes the upper folded plate roof 3. As for the support tool 4, the hanger 41 is attached with respect to the support tool main body 42 so that attachment or detachment is possible via a volt | bolt.

  As shown in FIG. 2, the support tool main body 42 is fixed to the lower part of the support tool body 42, which is connected to the opposing part 43 that sandwiches the joint fixing part 26 from both sides, and the fixing bracket 7 that is hooked on the tight frame 1. A part 44 and a hanging part attaching part 45 for attaching the hanging part 41 are provided. The support tool body 42 of the present embodiment further includes a support piece 63 that supports the upper surface of the convex portion of the upper folded plate roof 3.

  As shown in FIG. 2, the support tool main body 42 of the present embodiment includes a first main body portion 5 having a fixing portion 44 and a second main body portion 6 fixed to the first main body portion 5. It is comprised and both are integrally connected via the volt | bolt.

  The first main body portion 5 is formed along the upper surface portion 25 of the lower folded plate roof 2 and has a lower horizontal piece portion 51 whose projecting tip abuts against the side of the joint fixing portion 26 and the lower horizontal piece. In the portion 51, an upright surface portion 52 is provided continuously upward from an end portion on the opposite side of the seam fixing portion 26, and an upper end of the upright surface portion 52 is continuous toward the seam fixing portion 26 side. The upper horizontal piece portion 53 provided, and a fixing piece that is connected continuously from the end of the upper horizontal piece portion 53 on the side of the joint fixing portion 26 upward and serves as a fixing portion with the second main body portion 6. Part 54 and a hanging piece fixing piece 55 provided in a lateral direction from the upper end of the fixing piece 54. The first main body 5 is formed by bending a metal plate, and these parts are integrally formed.

  The lower horizontal piece portion 51 has a shape along the inclination of the upper surface portion 25 of the lower folded plate roof 2 and is configured to be placed on the upper surface portion 25. As shown in FIG. 2B, the lower horizontal piece portion 51 is formed with a pair of notches 56 for inserting the fixing bracket 7. The lower horizontal piece 51 is arranged such that the tip that contacts the joint fixing portion 26 is bent upward and is opposed to the lower end of the second main body 6.

  A plurality of ribs 57 formed over the entire length between the upper horizontal piece portion 53 and the lower horizontal piece portion 51 are formed on the elevation surface portion 52. The ribs 57 are formed by making cuts in the upper and lower sides of the upright portion 52 and then bending the portions between the cuts into the second main body 6 side.

  The upper horizontal piece 53 is provided with a fixing tool insertion hole 58 for inserting the fixing bracket 7. The fixing tool insertion hole 58 of the upper horizontal piece portion 53 of the present embodiment is provided immediately above the notch portion 56, and the fixing fitting 7 inserted through the notch portion 56 is inserted from below.

  The fixing piece portion 54 is provided with an insertion hole 59 for inserting the fixing tool. This fixing tool connects the first main body 5 and the second main body 6. Note that the insertion hole 59 of the present embodiment is configured by a square through hole in order to correspond to the root bolt.

  The second main body portion 6 is formed along the upper surface portion 25 of the lower folded plate roof 2 and the end portion of the second main body portion 6 contacts the side of the joint fixing portion 26. A vertical piece portion 62 that is continuously connected upward from an end on the side of the screw joint fixing portion 26 and is connected and fixed to the fixed piece portion 54 of the first main body portion 5, and is provided continuously to the upper end of the vertical piece portion 62. The above-described support piece 63 is configured.

  The facing portion 43 of the support tool body 42 is provided at the lower end of the support tool body 42. The facing portion 43 of the present embodiment is configured by arranging the end portions of the lower horizontal piece portion 51 of the first main body portion 5 and the horizontal piece portion 61 of the second main body portion 6 to face each other. . The facing portion 43 of the present embodiment is configured so as to clamp the joint fixing portion 26 from both sides, and holds the support tool 4. In addition, the opposing part 43 of this embodiment adjusts the pinching force with a square bolt and nut that screw the fixed piece part 54 of the first main body part 5 and the vertical piece part 62 of the second main body part 6 together. Be able to.

  The fixing part 44 is a part for fixing the support 4 to the fixing bracket 7 hooked on the tight frame 1. As shown in FIG. 5, the fixing portion 44 is fixedly connected to the fixing bracket 7 to fix the support 4 to the tight frame 1. The fixing portion 44 includes a lower horizontal piece portion 51, an elevation surface portion 52, and an upper horizontal piece portion 53 in the first main body portion 5, and has a substantially U-shaped cross section. As described above, the fixing portion 44 has the rib 57 formed so as to extend over the entire length between the upper horizontal piece portion 53 and the lower horizontal piece portion 51. The fixing portion 44 of the present embodiment is configured such that the nut 8 screwed to the fixing bracket 7 abuts on the upper surface of the upper horizontal piece portion 53 via a washer.

  Here, when the nut 8 is strongly tightened, the fixing portion 44 may be plastically deformed in a direction in which the upper horizontal piece portion 53 and the lower horizontal piece portion 51 approach each other. However, the adhering portion 44 of the present embodiment has the rib 57 extending over the substantially entire length between the upper horizontal piece portion 53 and the lower horizontal piece portion 51, thereby preventing plastic deformation when the nut 8 is fastened.

  The support 4 having such a configuration is fixed on the lower folded plate roof 2 via a fixing bracket 7 hooked on the tight frame 1.

  As shown in FIG. 7, the fixing bracket 7 includes a connecting portion 71 that vertically penetrates the lower folded plate roof 2, and a protruding portion 75 that protrudes laterally from the lower end portion of the connecting portion 71. The fixing bracket 7 of this embodiment is configured by U bolts 70.

  The connecting portion 71 is located so as to be shifted from the tight frame 1 in the width direction of the tight frame 1 (that is, the roof gradient direction) and penetrates the lower folded plate roof 2 but does not penetrate the tight frame 1. The connection part 71 of this embodiment is comprised by a pair of axial part 72 which was long in the up-down direction, and the thread part 73 was formed in the upper end part. With respect to the connecting portion 71 of the present embodiment, the shaft-like portion 72 is formed such that each shaft diameter is about φ10 mm and the distance between the shafts is about 75 mm. Thus, the tight frame 1 having a width of about 45 to 55 mm can be passed between the opposed portions of the shaft-like portion 72.

  Moreover, the connection part 71 has the fall prevention piece 74 which prevents that the fixing metal fitting 7 falls, as FIG. 4 shows. The fall prevention piece 74 protrudes laterally from the shaft-like portion 72 and is configured to be hooked on the peripheral edge of the through hole 27 formed in the lower folded plate roof 2.

  The protruding portion 75 is a portion protruding in the lateral direction from the lower end portion of the connecting portion 71. The projecting portion 75 of the present embodiment projects laterally from the lower end portion of the shaft-like portion 72 and connects the lower end portions of the shaft-like portion 72 to each other. As shown in FIG. 7, the protrusion 75 abuts against the back surface of the peak portion 10 of the tight frame 1 and restricts the fixture 7 from moving upward.

  In the present embodiment, the fixing bracket 7 is composed of a U-bolt 70 as shown in FIG. 7 or the like. For example, the following can be used.

  As shown in FIG. 8, the fixing bracket 7 may be a substantially J-shaped fixing bracket 76. In the fixing metal 76, the connecting portion 71 is constituted by a single shaft-like portion 72 that is long in the vertical direction, and the protruding portion 75 protrudes laterally from the lower end portion of the shaft-like portion 72. The shaft-like portion 72 has a screw portion 73 at the upper end. The fixing bracket 76 is configured such that the protruding tip of the protruding portion 75 is bent in the same direction as the shaft-shaped portion 72, and the tight frame 1 enters between the bent tip and the shaft-shaped portion 72. ing.

  Further, as shown in FIG. 9, the fixing bracket 7 may be a substantially L-shaped fixing bracket 77. In the fixing metal 77, the connecting portion 71 is constituted by a single shaft-like portion 72 that is long in the vertical direction, and the protruding portion 75 protrudes laterally from the lower end portion of the shaft-like portion 72. In the fixing bracket 7, the protruding tip of the protruding portion 75 is located in the middle in the width direction of the tight frame 1. As shown in FIG. 9, the L-shaped fixing bracket 77 may be disposed on both sides in the width direction of the tight frame 1 so as to be opposed to each other, or on one side in the width direction of the tight frame 1. It may be arranged only.

  Such a fixing bracket 7 is inserted into a through hole 27 penetrating up and down at a portion shifted from the tight frame 1 in the roof gradient direction to the convex portion of the lower folded plate roof 2. In the present embodiment, as shown in FIG. 3, a pair of through holes 27 are provided, and the pair of through holes 27 are formed on both outer sides in the width direction of the tight frame 1. The through-holes 27 are formed, for example, such that the distance between the facing holes is about 15 mm and the center-to-center distance is about 75 mm. The through hole 27 may be a round hole.

  In inserting the fixing bracket 7 through the through hole 27, the installer uses one of the pair of shaft portions 72 of the fixing bracket 7 as one of the pair of through holes 27. 27 is inserted from above. Thereafter, as shown in FIG. 4, the installer inserts the fixing bracket 7 while changing the angle, and inserts the inserted shaft-like portion 72 into the other through-hole 27 from below to above. Thus, the upper end portions of both shaft-like portions 72 are projected from the lower folded plate roof 2. At this time, in the fixing bracket 7, the shaft-like portion 72 passes vertically through the portion of the lower folded plate roof 2 that is displaced from the tight frame 1, and the protruding portion 75 is brought into contact with the back surface of the tight frame 1.

  In this state, the first main body 5 of the support 4 is connected to a portion protruding from the lower folded plate roof 2 of the fixing bracket 7. In the present embodiment, as shown in FIG. 5, the notch 56 and the fixing tool insertion hole 58 of the fixing portion 44 of the first main body portion 5 are passed through the screw portion 73 protruding from the lower folded plate roof 2. In this state, the nut 8 is screwed.

  Thereafter, as shown in FIG. 6, the second main body portion 6 is fixed to the back surface of the first main body portion 5, and the joint fixing portion 26 is clamped. As a result, the support 4 is fixed on the lower folded plate roof 2.

  As shown in FIG. 1, the upper folded plate roof 3 is installed on the support 4 installed on the lower folded plate roof 2.

  The upper folded plate roof 3 is composed of a plurality of upper folded plate members 30 arranged side by side in a direction perpendicular to the roof gradient direction. The upper folded plate roof 3 is formed by joining the ends of the plurality of upper folded plate members 30 together to form an angular wave shape that is continuous in a direction perpendicular to the roof gradient direction.

  The upper folded plate member 30 is formed by bending a steel plate (for example, a thickness of about 0.6 to 1.2 mm) long in the roof gradient direction into a substantially U-shaped cross section. The upper folded plate 30 is composed of a bottom surface portion 31, a pair of upright portions 32 that are connected upward from both ends in a direction perpendicular to the roof gradient direction in the bottom surface portion 31, and the protrusions of the upright portions 32. A joint piece 33 extending from the end edge is provided. The standing portion 32 is inclined so that the distance between the opposing portions increases toward the top. In such an upper folded plate 30, the bottom surface portion 31, the standing portion 32, and the joint piece 33 are integrally formed by bending.

  The upper folded plate roof 3 is formed by sequentially connecting the upper folded plate members 30 having the above configuration in a direction perpendicular to the roof gradient direction. The installer arranges the upper folded plate 30 so that the longitudinal direction thereof is substantially parallel to the roof gradient direction of the lower folded plate 20. Next, the installer fixes the edges of the upper folded plate 30 that overlap in a direction perpendicular to the roof gradient direction via the hanger 41 of the support 4. In this manner, the installer sequentially fixes the upper folded plate material 30 and repeats the operation over the entire roof surface to form the upper folded plate roof 3.

  In the double folded plate roof structure of the present embodiment configured as described above, the tight frame 1 and the support 4 are connected and fixed via a fixing metal 7 that penetrates at a portion shifted from the tight frame 1. The installer can fix the support 4 to the tight frame 1 without drilling into the tight frame 1. In other words, the installer does not need to pierce the tight frame 1 made of a thick metal strip, and only needs to pierce the thin lower folded plate roof 2, so that the tight frame 1 and the support 4 are fixed. Construction is also easy. As a result, the workability is improved as compared with the conventional double folded plate roof structure, and sufficient strength can be secured.

  Moreover, since the screw part 73 is formed in the upper end part of the fixing metal fitting 7 in the double folded plate roof structure of this embodiment, the support tool 4 and the tight frame 1 are clamped and fixed by the protruding part 75 and the nut 8. be able to. Thereby, simpler construction can be performed.

  Further, as shown in FIG. 7, the fixing bracket 7 of the present embodiment has a length of one shaft-shaped portion 72 of the pair of shaft-shaped portions 72 of the U bolt 70, and the length of the other shaft-shaped portion 72. It is shorter than the length. In this case, when attaching the fixing bracket 7 to the lower folded plate roof 2 and the tight frame 1, the contractor lowers the shaft portion 72 on the short side into the through hole 27 provided in the lower folded plate roof 2 from above. Pass through toward. Then, it is easy to insert the inserted shaft portion 72 on the short side into the other through-hole 27 from below to above. As described above, when one shaft-like portion 72 is formed shorter than the other shaft-like portion 72 with respect to the length of the pair of shaft-like portions 72 of the U bolt 70, the working efficiency is further improved. It will be a thing.

  Moreover, the structure of the support 4 of this embodiment is not restricted to the structure of this embodiment. For example, as shown in FIGS. 11 and 12, the fixing portion 44 may be formed in a flat plate shape. Moreover, as shown in FIG. 12, the shape of the support main body 42 may be configured so as to follow the shape of a round goby. Further, the connection between the first main body 5 and the second main body 6 may not be a structure using bolts and nuts, and the nut is omitted by providing a tap on one as shown in FIG. It may be a structure.

  By the way, as in the construction method of the present embodiment and the conventional construction method, in order to replace the existing lower folding plate roof 2, a construction method in which an upper folding plate roof 3 is newly installed on the lower folding plate roof 2 is used. In such a case, it is not necessary to remove the lower folded plate roof 2, so that the construction can be performed in a short period of time. For this reason, according to the conventional refurbishment method, for example, when refurbishing the roof of a factory that manufactures industrial products, the period for stopping the production line can be shortened, and the number of production accompanying the refurbishment work Can be reduced as much as possible.

  However, in the conventional double folded plate roof structure, it is necessary to screw a drill screw into the lower folded plate roof 2 and the tight frame 1 when attaching the support, so that the cutting waste generated at this time is scattered in the room. There was a need to prevent. For this reason, it was necessary to cover the whole room with a curing sheet, and thus, it was necessary to stop the production line of the factory.

  About this point, the construction method of the double folded board roof of this embodiment does not need to pierce | tighten the tight frame 1, but when drilling to the lower foldable board roof 2, it does not generate | occur | produce cutting waste etc. A drilling device 9 with a rotating tip tool 91 is used. This will be described below.

  In the drilling device 9 used in the present embodiment, as shown in FIG. 10, a tip tool 91 attached to the tip is driven without rotation. This drilling device 9 is constituted by an electric hammer 94 and a bifurcated tool is mounted as the tip tool 91.

  As shown in FIG. 10, the tip tool 91 includes a pair of drilling jigs 92 and a shank for connecting the base ends of the drilling jigs 92 and fixing the pair of drilling jigs 92 to the drilling device 9. Part 93. For example, the tip tool 91 is formed such that the distance between the centers of the pair of drilling jigs 92 is about 75 mm, and the length of one side of the cross section of the drilling jig 92 is about 15 mm. The punching jig 92 has a rod shape with a sharp tip, and opens a hole in the object (in the present embodiment, the lower folded plate roof 2) by moving at high speed in the axial direction. That is, the tip tool 91 of the present embodiment is driven to slide in the axial direction by the electric hammer 94, and the pair of through holes 27 are formed in the lower folded plate roof 2.

  The drilling device 9 is configured by an electric hammer 94 that moves the tip tool 91 in the axial direction at a high speed. In this embodiment, a small electric hammer 94 having a striking energy of 8.3 J is used. Thereby, it becomes possible to perforate the lower folded plate roof 2 having a thickness of 0.6 to 1.2 mm without cutting.

  As described above, the method for constructing the double folded plate roof according to the present embodiment is such that the through-hole 27 is drilled using the drilling device 9 that drills with the non-rotating tip tool 91, and therefore, almost all cutting waste or the like is generated. Absent. Thereby, it is not necessary to lay a curing sheet or the like on the production line of the factory to prevent scattering of cutting waste, and the work can be performed without stopping the production line.

  Moreover, since the drilling device 9 of this embodiment has a pair of drilling jigs 92, a plurality of holes can be provided at a time, and workability is improved. Moreover, as long as the position of the center line of the tight frame 1 can be grasped, it can be easily drilled at a predetermined position at regular intervals, and the tight frame 1 can be constructed so as not to make a hole. In order to confirm the position of the center line of the tight frame 1 in a state where the lower folded plate roof 2 is laid, for example, the position of the tight frame 1 may be confirmed from a gap and the center line may be marked.

  Next, Embodiment 2 will be described with reference to FIGS. In addition, since this embodiment is the same as Embodiment 1 for the most part, the same code | symbol is attached | subjected in the same part, description is abbreviate | omitted, and a different part is mainly demonstrated.

  The double folded plate roof structure of the present embodiment is different from that of the first embodiment in the structure of the support and the fixing bracket, and the other structures are the same as those in the first embodiment.

  The support tool 400 of this embodiment is provided with the support tool main body 401 and the holding | maintenance part 80 separable from this support tool main body 401, as FIG. 13 shows. Moreover, the support tool 400 is provided with the hanger 41 which fixes the upper folded board roof 3 similarly to the thing of Embodiment 1 (refer FIG. 1). The hanger 41 is detachably attached to the support body 401 via bolts.

  The support main body 401 is located on the first main body 500 located on one side of the seam fixing part 26 of the lower folded plate roof 2 and on the other side of the seam fixing part 26. A second main body 600. The first main body portion 500 is fixed to the second main body portion 600 via a fixing tool.

  As shown in FIG. 14, the first main body portion 500 is directed downward from an end portion on the second main body portion 600 side of the hanger mounting piece 501 to which the hanger 41 is attached and the second hanger mounting piece 501. The fixed piece 502 continuously provided, the horizontal piece 503 continuously provided from the lower end portion of the fixed piece 502 toward the side opposite to the second main body portion 600 side, and downward from the projecting tip of the horizontal piece 503 And a vertical piece 504 connected continuously. The first main body 500 is formed by bending a metal plate, and each part is integrally formed.

  The vertical piece 504 has a guide piece 508 that is bent away from the second main body 600 at the lower end thereof.

  The horizontal piece 503 has a fixing tool insertion hole 505 into which the connecting portion 702 of the fixing bracket 700 is inserted. A pair of fixing tool insertion holes 505 are provided and are spaced apart in the roof gradient direction. In other words, the fastener insertion hole 505 is separated in a direction perpendicular to the longitudinal direction of the tight frame 1.

  The fixing piece 502 has an insertion hole 506 through which the fixing tool is inserted. The insertion hole 506 is inserted with a fixing tool for connecting the first main body portion 500 and the second main body portion 600. The insertion hole 506 of the present embodiment is configured by a square through hole in order to correspond to a root angle bolt.

  The hanging piece 501 has notches 507 at both ends in a direction perpendicular to the longitudinal direction of the tight frame 1. The notch 507 is located above the fixing tool insertion hole 505 provided in the horizontal piece 503. Due to the notch 507, the hanging piece attachment piece 501 is less likely to interfere with the tool when the nut is screwed into the fixing bracket 700.

  As shown in FIG. 13, the second main body portion 600 includes a lower horizontal piece 601 placed on the upper surface portion 25 of the lower folded plate roof 2 and an end of the lower horizontal piece 601 on the first main body portion 500 side. A bent piece 602 bent toward the opposite side from the portion, a fixing vertical piece 603 extending further upward from the upper end of the bent piece 602, and a support piece connected to the upper end of the fixing vertical piece 603 604. The fixing vertical piece 603 is in contact with the fixing piece 502 of the first main body 500, and is connected by a fixing tool in this state. The support piece 604 is in contact with the lower surface of the upper folded plate roof 3 and supports the upper folded plate roof 3, similarly to the support 4 of the first embodiment.

  The holding part 80 is configured to be separable from the support body 401. The holding unit 80 is disposed below the horizontal piece 503 of the first main body unit 500.

  As shown in FIG. 15, the holding portion 80 includes a pair of placement pieces 81 placed on the upper surface portion 25 of the lower folded plate roof 2, and a main body support piece 82 erected from the placement piece 81. And an elastic piece 83 that elastically connects between the main body support pieces 82. Each part of the holding part 80 is integrally formed of a thin metal plate.

  The placing pieces 81 are provided so as to be aligned in the roof method gradient direction. The pair of placement pieces 81 are separated from each other through a gap. Further, the mounting piece 81 is provided with a notch 84 for allowing the connecting portion 702 of the fixing bracket 700 to pass from the side.

  The notch portion 84 is provided with an introduction portion 85 that is inclined at a corner portion on the opening side so that the distance between sides facing each other toward the edge side increases. The notch 84 is formed with a locking portion 86 at the back of the notch to which the shaft-like portion 703 of the fixing bracket 700 is locked.

  The pair of placement pieces 81 includes an outer side of the cutout portion 84 of one placement piece 81 (in this embodiment, an outer side of the locking portion 86) and an outer side of the cutout portion 84 of the other placement piece 81. The dimension L1 between the two sides (in this embodiment, the outer side of the locking portion 86) is substantially the same as or smaller than the distance L2 between the outer sides of the shaft-like portion 72 in the fixing bracket 700. Yes.

  The main body support piece 82 is erected from the edge of the mounting piece 81 opposite to the second main body portion 600 side. The horizontal piece 503 of the first main body portion 500 abuts the upper end of the main body support piece 82, thereby supporting the first main body portion 500. The main body support piece 82 is formed in a substantially U shape in plan view.

  The elastic piece 83 connects the inner ends of the main body support piece 82 to each other. The elastic piece 83 is configured by a surface substantially perpendicular to the mounting piece 81. The elastic piece 83 connects the placement pieces 81 to each other via the main body support piece 82. The elastic piece 83 is elastically bent so that the openings of the notches 84 of the mounting pieces 81 on both sides are directed outward while using the bent portion as a fulcrum. As a result, the dimension L <b> 1 between the outer side of the cutout portion 84 of one placement piece 81 and the outer side of the cutout portion 84 of the other placement piece 81 is increased. Further, the elastic piece 83 is restored according to the urging force, thereby moving the cutout portion 84 of the mounting piece 81 in the original direction. As a result, the dimension L <b> 1 between the outer side of the cutout portion 84 of one placement piece 81 and the outer side of the cutout portion 84 of the other placement piece 81 is restored.

  As shown in FIG. 13, the support 400 having such a configuration is coupled to the fixing bracket 700 and the facing portion 43 provided at the lower portion thereof and sandwiching the joint fixing portion 26 from both sides, as shown in FIG. 13. The fixed part 44 to be attached and a hanging part attaching part 45 for attaching the hanging part 41 are provided. In the present embodiment, the facing portion 43 includes an end edge on the second main body portion 600 side of the mounting piece 81 of the holding portion 80 and a first main body portion 500 side of the lower horizontal piece 601 of the second main body portion 600. And an edge. The fixing portion 44 is configured by the horizontal piece 503 and the holding portion 80 of the first main body portion 500. The hanging attachment part 45 is constituted by a hanging piece 501 of the first main body part 500.

  As shown in FIG. 16, the fixing bracket 700 includes a connecting portion 702 that vertically penetrates the lower folded plate roof 2, and a protruding portion 75 that protrudes laterally from the lower end portion of the connecting portion 702. The fixing metal 700 is constituted by a U bolt 701. Unlike the fixing bracket 700 of the first embodiment, the fixing bracket 700 of the present embodiment is formed such that the lengths of the pair of shaft-like portions 703 are the same. Furthermore, the fixing bracket 700 of this embodiment is not provided with the fall prevention piece 74. Other configurations are the same as those of the fixing bracket 7 of the first embodiment.

  In order to attach such a support tool 400, it constructs as follows.

  First, a through hole 27 is drilled in a portion of the lower folded plate roof 2 that is displaced from the tight frame 1. At this time, as in the first embodiment, the drilling device 9 having the non-rotating drilling jig 92 may be used, or the through hole 27 may be provided by the installer by hitting with a hammer.

  Next, the installer inserts the fixing bracket 700 into the through hole 27. When inserting the fixing bracket 700 into the through hole 27, the installer inserts one of the pair of shaft portions 703 of the fixing bracket 700 from the upper side of the one through hole 27. Thereafter, the insertion is continued while changing the angle of the fixing bracket 700, and the inserted shaft-like portion 703 is inserted into the other through-hole 27 from below to above. Thereby, the upper end part of both the axial parts 703 is made to protrude from the lower folding board roof 2. As shown in FIG. At this time, in the fixing bracket 700, the shaft-like portion 703 vertically penetrates a portion of the lower folded plate roof 2 that is displaced from the tight frame 1, and the protruding portion 75 contacts the back surface of the tight frame 1.

  In this state, the holding portion 80 is attached to the connecting portion 702 protruding from the lower folded plate roof 2 of the fixing bracket 700. At this time, the elastic piece 83 is bent, and the shaft-like portion 703 is inserted into the cutout portion 84 from the side while the opening direction of the cutout portion 84 of the holding portion 80 is expanded outward. Thereafter, by restoring the elastic piece 83, each shaft-like portion 703 is locked to the outer edge portion (the locking portion 86 in this embodiment) of the notch portion 84 of the holding portion 80. Thereby, the holding part 80 holds the fixing bracket 700 so as not to fall.

  In this state, the fixing portion 44 of the support body 401 is connected to the connecting portion 702 of the fixing bracket 700 protruding upward from the mounting piece 81 of the holding portion 80. Since the subsequent construction is the same as that of the first embodiment, it will be omitted.

  Thus, since the support tool 400 of this embodiment has the holding | maintenance part 80 which hold | maintains the fixing bracket 700 separately from the holding | maintenance by the connection to the connection part 702 of the support tool main body 401, the fixing bracket 700 is made into a through-hole. 27, the position of the fixing bracket 700 can be maintained. That is, since the connecting portion 702 of the fixing bracket 700 can be held in a state of protruding from the lower folded plate roof 2, the installer connects the support tool body 401 to the connecting portion 702 using both hands. Work can be done.

  In other words, the installer holds the fixture main body 401 with the other hand while holding the fixing bracket 700 with one hand and holding the connecting portion 702 of the fixture 700 protruding from the lower folded plate roof 2. There is no need to perform difficult work such as mounting. Thereby, an operator can use both hands to attach the support tool main body 401, and work efficiency can be improved.

  Further, in the support tool 400 of the present embodiment, the holding portion 80 has a main body support piece 82 that comes into contact with the lower surface of the support tool main body 401, and the main body support piece 82 is screwed between the fixing bracket 700 and the nut 8. Since the support tool main body 401 is firmly fixed in a state where it is supported, the support tool 400 can be stably attached to the lower folded plate roof 2.

  As described above, the double folded plate roof structure of the present invention has been described based on the embodiment in which the newly installed upper folded plate roof 3 is replaced with the existing lower folded plate roof 2. Further, it may not be generated by the rearrangement method as in the first and second embodiments, and can be applied to, for example, a newly built double roof.

  Moreover, in the double folded plate roof structure of Embodiment 1, 2, although it drilled on the lower folded plate roof 2 using the drilling apparatus 9 drilled with the non-rotating tip tool 91, this invention In the double folded plate roof structure, the drilling device 9 provided with the non-rotating tip tool 91 may not be used. For example, each through-hole may be provided by a hammer that is held and used by the installer.

  Further, in the double folded plate roof structure of the first and second embodiments, the fixing bracket is in contact with the back surface of the top portion of the peak portion of the tight frame, but in the present invention, the fixing bracket is the peak portion of the tight frame. You may contact | abut on the back side of an inclined surface.

DESCRIPTION OF SYMBOLS 1 Tight frame 2 Lower folding board roof 27 Through-hole 3 Upper folding board roof 4 Supporting tool 400 Supporting tool 401 Supporting tool main body 7 Fixing fixture 71 Connecting part 72 Axial part 76 Fixing fitting 77 Fixing fixture 700 Fixing fitting 703 Axial part 80 Holding part 81 Placement piece 83 Elastic piece 86 Locking part

Claims (5)

A support structure disposed between the lower folded plate roof and the upper folded plate roof attached to the tight frame, and a connection structure between the lower folded plate roof,
A fixing fitting that is passed from below through a through-hole that penetrates the lower folded plate roof at a portion that is shifted from the tight frame, and is arranged to contact the back surface of the tight frame,
A support tool that is separable from the support tool main body and includes a holding part that holds the fixing metal fitting so that it does not fall apart from the attachment of the fixing metal fitting to the support tool main body. Connection structure with the lower folded plate roof. A support device disposed between a lower folded plate roof and an upper folded plate roof attached to a tight frame,
The support is
Passed from below through a through hole penetrating the lower folded plate roof at a portion deviated from the tight frame, and fixed through a fixing metal fitting arranged to contact the back surface of the tight frame,
The support is provided with a holding member that is separable from the support main body and that holds the fixing metal so as not to fall apart from fixing the fixing metal and the support main body. To support. A holding member provided in the support according to claim 2,
A pair of mounting pieces each provided with a pair of locking portions;
An elastic piece for elastically connecting the pair of placement pieces,
A holding member for a support, wherein the pair of shaft-like portions of the fixing bracket is configured to hold the fixing bracket by being locked to the pair of locking portions. A support member disposed between the lower folded plate roof and the upper folded plate roof attached to the tight frame, and a connection structure between the lower folded plate roof having a seam fixing portion ;
A fixing fitting that is passed from below through a through-hole that penetrates the lower folded plate roof at a portion that is shifted from the tight frame, and is arranged to contact the back surface of the tight frame,
A lower horizontal piece portion disposed immediately above the tight frame, and a support tool connected to the fixing bracket protruding from the through hole ,
The support is
An elevating surface portion protruding upward from an end of the lower horizontal piece portion opposite to the joint fixing portion;
An upper horizontal piece portion that is continuously provided from the upper end of the vertical surface portion to the joint fixing portion side and is located above the joint fixing portion.
Have
The connection structure between the support and the lower folded plate roof, wherein the fixing bracket is connected to the upper horizontal piece . A support provided in a connection structure between the support according to claim 4 and the lower folded plate roof,
A support device comprising a lower horizontal piece portion disposed immediately above the tight frame and placed on the lower folded plate roof.

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