JP2015021347A - Ceiling reinforcement metal fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a connection part of a ceiling backing material from being deformed in an earthquake.SOLUTION: A ceiling reinforcement metal fitting 1 having a main plate part 20 orthogonally crossing above a first ceiling backing material 2a, a first suspending plate part 21 suspended to the side of one second ceiling backing material 2ba from the main plate part 20, a support plate part 24 butting against a base end part 42a of a connection insertion part 42 of one second ceiling backing material 2ba by extending in the longitudinal direction of the one second ceiling backing material 2ba from the first suspending plate part 21 and a second suspending plate part 22 fixed to a side surface of another second ceiling backing material 2bb by suspending to the side of the other second ceiling backing material 2bb from the main plate part 20, in a part for connecting the ceiling backing materials 2a, 2ba and 2bb, is installed by respectively inserting a connection insertion part 42 extending in the orthogonal direction from the edge of the second ceiling backing materials 2ba and 2bb, to a fitting-insertion groove 41 formed on both side surfaces of the first ceiling backing material 2a.

Description

  The present invention relates to a ceiling reinforcing bracket that is attached to reinforce a ceiling structure, and more particularly to a ceiling reinforcing bracket that is used to reinforce a connection structure of a ceiling base material.

  As shown in FIG. 1, a ceiling frame body 3 is formed by assembling bowl-shaped ceiling base materials 2 a and 2 b in a lattice shape, and a ceiling plate 4 is installed on the ceiling frame body 3 and connected to the ceiling frame body 3. A ceiling structure in which the ceiling frame body 3 is suspended by the suspension bolts 5 hanging from the ceiling slab via the suspended metal fittings 6 is well known.

  By the way, as shown in FIG. 1, when the ceiling base materials 2a and 2b are assembled in a lattice shape, as shown in FIGS. 2 and 3, two ceiling base materials 2b are formed on both side surfaces of the ceiling base material 2a. It connects so that an edge part may be faced, and the three ceiling base materials 2a and 2b are connected in the shape of a cross (for example, patent documents 1-3). Specifically, in the ceiling base material 2a connected at both sides, fitting grooves 41 along the longitudinal direction of the ceiling base material 2a are formed on both side surfaces, and the two ceilings connected at the ends. In the base material 2b, a connecting insertion portion 42 is formed at its end so as to protrude perpendicular to the longitudinal direction of the ceiling base material 2b. As shown in FIG. 3, the connecting insertion portion 42 is inserted into the insertion groove. The ceiling base materials 2a and 2b are connected to each other by being inserted into 41.

  In recent years, the standards of earthquake resistance required for ceiling structures have been increased, and improvement in earthquake resistance is also required for the connecting portions of the above-described ceiling base materials 2a and 2b. On the other hand, in the conventional ceiling structure, as shown in FIG. 4, the connecting portions of the ceiling base materials 2 a and 2 b are reinforced by attaching the ceiling reinforcing bracket 7. The conventional ceiling reinforcing bracket 7 is an L-shaped metal plate piece, and is engaged with the side surfaces of the respective ceiling base materials 2a and 2b on the opposite side of the portion where the connecting insertion portion 42 and the fitting insertion groove 41 are fitted. This prevents the connected ceiling base materials 2a and 2b from separating during an earthquake.

JP 2003-147897 A JP 2005-232902 A JP 2004-316145 A

  By the way, in the connection structure of the conventional ceiling base materials 2a and 2b described above, the connection insertion portion 42 cannot be inserted into the insertion insertion groove 41 to the proximal end due to the structure, and the number of the connection insertion portion 42 on the proximal end side. The millimeter portion is not held by the fitting insertion groove 41. For this reason, as shown in FIG. 5, when a tensile force in the direction of pulling out the connected ceiling base materials 2b and 2b is applied during an earthquake, stress is concentrated on the base end portion 42a of the connecting insertion portion 42, There is a problem that the base end portion 42a is easily plastically deformed so that the bent portion extends. Even if such deformation occurs, the ceiling base materials 2a and 2b are not disconnected, but the lattice of the ceiling frame 3 is distorted and the holding of the ceiling plate 4 and the like becomes unstable. The material 2b needs to be repaired. The ceiling reinforcing bracket 7 in FIG. 4 can prevent the connected ceiling base materials 2a and 2b from falling off, but as shown in FIG. 5, it is bent into an L shape when a tensile force is applied to the ceiling base material 2b. Since the portion is easy to extend, even if the conventional ceiling reinforcing bracket 7 is attached, the deformation of the base end portion 42a of the connecting insertion portion 42 cannot be sufficiently prevented.

  This invention is made | formed in view of this present condition, Comprising: It aims at provision of the ceiling reinforcement metal fitting which can prevent suitably that the base end part of a connection insertion part deform | transforms at the time of an earthquake.

  The present invention includes a first ceiling base material in which insertion insertion grooves along the longitudinal direction are formed on both side surfaces, and a second ceiling base material in which a connecting insertion portion extending in an orthogonal direction from the edge is formed. However, the ceiling attached to the cross-linked portion is inserted by inserting the connecting insertion portions of the two second ceiling base materials into the fitting grooves on both sides of the first ceiling base material, respectively. Reinforcing metal fittings, a main plate portion orthogonal to the first ceiling base material and above the first ceiling base material, and hanging from the main plate portion to the side of one second ceiling base material A first hanging plate portion extending from the first hanging plate portion in the longitudinal direction of the one second ceiling base material, and a tip of the first hanging base material is connected to the base of the connection insertion portion of the one second ceiling base material. A supporting plate portion that abuts against the end portion, and a second hanging plate portion that hangs from the main plate portion to the side of the other second ceiling base material, The plate portion, a ceiling reinforcing bracket, characterized in that fixed to the side surface of the second ceiling base material of the other.

  In such a configuration, since the base end portion of the connection insertion portion of the second ceiling base material can be supported by the support plate portion from the longitudinal direction of the second ceiling base material, the second ceiling base material is Even when a strong force is applied in the direction of pulling out from one ceiling base material, it is possible to prevent the base end portion of the connecting insertion portion from being deformed.

  Further, as another aspect of the present invention, a first ceiling base material in which insertion grooves along the longitudinal direction are formed on both side surfaces, and a connection insertion portion extending in an orthogonal direction from the edge are formed. The second ceiling base material is connected in a cross shape by inserting two connecting insertion portions of the second ceiling base material into the insertion grooves on both sides of the first ceiling base material, respectively. A ceiling reinforcing bracket to be attached to a main plate portion orthogonal to the first ceiling base material above the first ceiling base material, and one second ceiling base from the main plate portion. A first hanging plate portion that hangs down to the side of the material, and extends from the first hanging plate portion in the longitudinal direction of the one second ceiling foundation material, with the tip thereof being the one second ceiling foundation material A first reinforcing bracket piece provided with a support plate portion that abuts against a base end portion of the connection insertion portion, and a first ceiling base material, A main plate portion orthogonal to the well base material, a first hanging plate portion that hangs from the main plate portion to the side of the other second ceiling base material, and the other first plate portion from the first hanging plate portion. A second reinforcing metal piece provided with a support plate portion extending in the longitudinal direction of the second ceiling base material and having a distal end abutting a base end portion of the connecting insertion portion of the other second ceiling base material The ceiling reinforcing metal fitting is characterized in that the main plate portion of the first reinforcing metal piece and the second reinforcing metal piece are integrally joined above the first ceiling base material.

  That is, in such a configuration, the main plate portions of the reinforcing metal piece are joined and integrated with each other, so that each reinforcing metal piece abuts the support plate portion on the base end portion of each connection insertion portion. Fixed in state. Therefore, according to such a ceiling reinforcing metal fitting, it is possible to suitably prevent deformation of each connecting insertion portion of the two second ceiling base materials in the portion where the ceiling base material is connected in a cross shape. Become.

  In the above configuration, it is proposed that the first reinforcing metal piece and the second reinforcing metal piece have the same shape.

  According to such a configuration, the two reinforcing metal pieces can be configured by one type of component, and thus the manufacturing cost can be reduced.

  Further, in the above configuration, the first reinforcing metal piece includes a second hanging plate part that hangs from the main plate part to the side of the other second ceiling base material, and the second reinforcing metal piece is A second hanging plate portion hanging from the main plate portion to the side of the one ceiling base material, and in a state where the main plate portions of both the reinforcing metal pieces are joined, It is proposed that the second ceiling base material is sandwiched by the second hanging plate portion of the other reinforcing metal piece.

  In such a configuration, the second ceiling base material is not easily rattled by sandwiching the second ceiling base material by the reinforcing metal piece, and therefore the second ceiling base material is supported by the support plate portion of each reinforcing metal piece. It becomes possible to firmly support the connection insertion portion.

  Further, in the above configuration, a first engaging portion is formed on at least one of the main plate portions of the first reinforcing metal piece and the second reinforcing metal piece, and the first reinforcing metal piece and the second reinforcing metal piece are formed. At least the other main plate portion of the metal piece is formed with a second engagement portion that integrally joins the main plate portions of both reinforcing metal pieces by engaging the first engagement portion. Proposed.

  In such a configuration, the main plate portion of the reinforcing metal piece can be joined without using screws or the like, so that the number of parts can be reduced.

  Further, in the present invention, the second ceiling base material has a wide locking ridge formed at the upper part and a wide installation edge formed at the lower part, with the narrow vertical sides vertically. The connecting insertion portion is formed at the height of the vertical side portion of the second ceiling base material, and the first hanging plate portion is formed of the second ceiling base material. It is proposed to include an upper fitting portion that is fitted on the locking ridge from the side.

  In such a configuration, by fitting the upper fitting portion of the first hanging plate portion with the locking ridge portion of the second ceiling base material, the first hanging plate portion is difficult to rattle, The connection insertion portion of the second ceiling base material can be firmly supported by the support plate portion extending from the first hanging plate portion.

  Further, in the present invention, the second ceiling base material has a wide locking ridge formed at the upper part and a wide installation edge formed at the lower part, with the narrow vertical sides vertically. The connecting insertion portion is formed at the height of the vertical side portion of the second ceiling base material, and the first hanging plate portion is formed of the second ceiling base material. It is proposed to have a lower fitting part that fits between the lower edge of the locking ridge and the upper edge of the installation edge.

  In such a configuration, by fitting the lower fitting part of the first hanging plate part between the lower edge of the locking ridge of the second ceiling base material and the upper edge of the installation edge part, Since the first drooping plate portion is less likely to rattle, the connection insertion portion of the second ceiling base material can be firmly supported by the support plate portion extending from the first drooping plate portion.

  Further, in the present invention, the first hanging plate portion is a side surface of the second ceiling base material, and is a fitting protrusion that fits in a through hole formed at a height at which the connection insertion portion is formed. It is proposed to comprise a part.

  In such a configuration, by fitting the fitting protrusion of the first hanging plate portion into the through hole of the second ceiling base material, the first hanging plate portion and the second ceiling base material are: Since it engages in the longitudinal direction of the second ceiling foundation material, the first hanging plate portion can directly prevent the movement of the second ceiling foundation material in the longitudinal direction.

  As described above, according to the ceiling reinforcing metal fitting of the present invention, it is possible to suitably prevent the base end portion of the connection insertion portion from being deformed during an earthquake.

It is a perspective view of the conventional ceiling structure. It is a perspective view which shows the connection aspect of ceiling base materials 2a and 2b. It is a disassembled perspective view which shows the connection aspect of ceiling base materials 2a and 2b. It is explanatory drawing which shows the mounting aspect of the conventional ceiling reinforcement metal fittings 7. FIG. It is explanatory drawing which shows the aspect which the connection insertion part 42 deform | transforms at the time of an earthquake. It is a longitudinal cross-sectional view of the ceiling base material 2a. 1 is a front perspective view of a ceiling reinforcing metal fitting 1 of Example 1. FIG. 2 is a rear perspective view of the ceiling reinforcing metal fitting 1 of Embodiment 1. FIG. FIG. 3 is a perspective view illustrating a construction example of the ceiling reinforcing metal fitting 1 according to the first embodiment. FIG. 3 is a front view illustrating a construction example of the ceiling reinforcing metal fitting 1 according to the first embodiment. It is a side view which shows the construction example of the ceiling reinforcement metal fitting 1 of Example 1. FIG. It is the sectional view on the AA line in FIG. It is a perspective view which shows another construction example of the ceiling reinforcement metal fitting 1 of Example 1. FIG. (A) is a disassembled perspective view of the ceiling reinforcement metal fitting 1a of Example 2, (b) is a perspective view of the state which assembled | attached the ceiling reinforcement metal fitting 1a of Example 2. FIG. It is a perspective view which shows the construction example of the ceiling reinforcement metal fitting 1a of Example 2. FIG. It is a front view which shows the construction example of the ceiling reinforcement metal fitting 1a of Example 2. FIG. It is a side view which shows the construction example of the ceiling reinforcement metal fitting 1a of Example 2. FIG. It is the BB sectional view taken on the line in FIG. It is a perspective view which shows the construction example of the ceiling reinforcement metal fitting 1b of Example 3. FIG. (A) is a disassembled perspective view of the ceiling reinforcement metal fitting 1c of Example 4, (b) is a perspective view of the state in which the ceiling reinforcement metal fitting 1c of Example 4 is assembled.

  Before describing an embodiment of the ceiling reinforcing bracket of the present invention, first, a ceiling structure to which the ceiling reinforcing bracket of the embodiment is attached will be described.

  FIG. 1 is a perspective view of a conventional ceiling structure. This ceiling structure is connected to a ceiling frame body 3 in which a plurality of ceiling base materials 2a and 2b are assembled in a lattice shape, a ceiling plate 4 installed on the ceiling frame body 3, and a lower end of a suspension bolt 5. And a hanging metal fitting 6 for suspending the ceiling frame 3. The ceiling reinforcing bracket of the present embodiment is attached to the ceiling structure.

  The ceiling base materials 2a and 2b are long bowl-shaped members formed by forming a strip-shaped steel plate, and are assembled in a lattice shape to form the ceiling frame 3 as shown in FIG. The ceiling base materials 2a and 2b constituting the ceiling frame 3 are connected to a first base material 2a arranged in parallel at regular intervals, and adjacent to each other at a right angle to the side surface of the first base material 2a. It is roughly divided into a second base material 2b constructed between the base materials 2a. The first base material 2a and the second base material 2b have the same cross-sectional shape, although the length and the connection structure are different.

  As shown in FIG. 6, the cross-sectional shape of the ceiling base material 2 a (2 b) includes a vertical vertical side portion 11 that is thin in the vertical direction, and a wide locking ridge portion 12 that is formed at the upper end of the vertical side portion 11. , And a wide installation edge portion 13 formed at the lower end of the vertical side portion 11, and is symmetrical with respect to the center line. The ceiling base material 2 a (2 b) includes a suspension rod 14 that forms the vertical side portion 11 and the latching ridge portion 12, and a latching beam 15 that is assembled to the suspension rod 14 and forms the installation edge 13. , Composed of two pieces of metal.

  As shown in FIGS. 2 and 3, a connecting portion 40a for connecting the second base material 2b in a T-shape is provided on the side surface of the vertical side portion 11 of the first base material 2a. The connecting portion 40a includes an insertion groove 41 in the longitudinal direction along the plate surface, and an engagement protrusion 43 formed by cutting and raising the plate surface of the vertical side portion 11 in the vicinity of the outlet of the insertion groove 41. I have. Here, the connecting portion 40a of the first base material 2a is formed so as to be paired with the front and back of the vertical side portion 11, whereby the second base material is located at a symmetrical position of the first base material 2a. 2b can be connected in a cross shape. That is, the first base material 2a corresponds to the first ceiling base material according to the present invention, and the second base material 2b corresponds to the second ceiling base material according to the present invention.

  On the other hand, as shown in FIGS. 2 and 3, connecting portions 40b for connecting to the first base material 2a in a T shape are disposed at both ends of the second base material 2b. The connecting portion 40b is formed by integrally joining a metal plate piece bent in an L shape in plan view to the end side surface of the vertical side portion 11 by burring caulking. A side portion protruding at a right angle from the edge serves as a connection insertion portion 42 that is inserted into the insertion groove 41 of the first base material 2a. The connection insertion portion 42 has a shape that can be inserted into the insertion insertion groove 41, and an engagement groove hole 44 that engages with the engagement protrusion 43 is formed at the tip thereof. A caulking hole 45 by burring caulking is formed at a joint between the metal plate piece constituting the connecting portion 40b and the vertical side portion 11 of the second base material 2b. As will be described later, the ceiling reinforcing metal fitting of the embodiment is fitted into the caulking hole 45.

  As shown in FIGS. 2 and 3, the first base material 2a and the second base material 2b are formed by inserting the connecting insertion portion 42 of the second base material 2b into the fitting groove 41 of the first base material 2a. The engagement protrusion 43 and the engagement groove 44 are engaged with each other so as to be connected in a T shape. Then, by connecting another second base material 2b from the opposite side of the first base material 2a, the two second base materials 2b are connected to the first base material 2a in a cross shape. Then, by connecting a large number of ceiling base materials 2a and 2b in a cross shape, a ceiling frame body 3 having a grid pattern is formed by the ceiling base materials 2a and 2b as shown in FIG. In addition, since the shape and manufacturing method of these ceiling base materials 2a and 2b are well-known techniques, detailed description is abbreviate | omitted.

  As shown in FIG. 1, the rectangular ceiling plate 4 is fitted into the opening 8 of the ceiling frame 3 from above. The ceiling plate 4 has a rectangular shape that is slightly larger than the size of the opening 8 of the ceiling frame body 3, and the edge of the ceiling plate 4 is placed in the ceiling 8 as shown in FIG. It is supported by the upper surface of the installation edge 13 of the base materials 2a and 2b. The ceiling plate 4 may be any known ceiling plate such as a rock wool plate or a metal panel.

  7 and 8 show the ceiling reinforcing metal fitting 1 of the first embodiment attached to the conventional ceiling structure. The ceiling reinforcing bracket 1 is formed by bending or pressing a thin steel plate (metal plate) having a thickness of about 2 mm. The ceiling reinforcing bracket 1 includes a main plate portion 20 that intersects the first base material 2a orthogonally above a portion where the ceiling base materials 2a and 2b are connected in a cross shape, and a lower side of the main plate portion 20 on one side. From the edge, the first drooping plate portion 21 that hangs to the side of one second base material 2b (2ba), and the other second base material 2b (2bb) from the lower edge of the other side of the main plate portion 20 A second drooping plate portion 22 that hangs laterally, and a notch-shaped groove portion 23 into which the first base material 2a is fitted between the first drooping plate portion 21 and the second drooping plate portion 22. Forming. In the following, the side shown in FIG. 7 will be described as the front side of the ceiling reinforcing metal fitting 1 for convenience. In the following, two second base materials 2b that are orthogonally connected to the first base material 2a are distinguished as one second base material 2ba and the other second base material 2bb as necessary. explain.

  The main plate portion 20 includes a vertical vertical plate portion 25 having a wide rectangular shape, and a reinforcing rib 26 formed by bending the upper edge of the vertical plate portion 25 at a right angle and extending in the horizontal direction. As shown in FIGS. 9 to 11, the main plate portion 20 is arranged so as to stand up from above the locking ridges 12 of the second base materials 2 ba and 2 bb, and in the longitudinal direction of the second base materials 2 ba and 2 bb. And intersects with the first base material 2a orthogonally.

  The first drooping plate portion 21 is formed by extending the right side portion of the metal plate constituting the main plate portion 20 downward, and is an upper fitting having a substantially U-shaped cross section formed at the lower edge of the main plate portion 20. It is comprised by the part 28 and the vertical fitting lower fitting part 29 formed in the lower edge of the upper fitting part 28. FIG. The upper fitting portion 28 has a shape that can be fitted onto the locking ridge 12 of the ceiling base material 2b, and as shown in FIGS. 9 to 11, the height of the locking ridge 12 of the ceiling base material 2b. It arrange | positions at 1 and it is comprised so that it can externally fit to the latching ridge part 12 of one 2nd base material 2ba from a side. Moreover, the lower fitting part 29 hangs down from the lower edge of the upper fitting part 28, and is between the lower edge of the latching ridge part 12 of one second base material 2ba, and the upper edge of the installation edge part 13. It is configured to fit inside. Further, the lower fitting portion 29 is formed with a fitting projection 30 that protrudes to the back side. The fitting protrusion 30 is formed in a size and a position that can be fitted into a caulking hole 45 penetrating the end portion of the second base material 2 b, and the fitting protrusion 30 is fitted into the caulking hole 45. Thus, the first hanging plate portion 21 is locked in the longitudinal direction of the second base material 2ba with respect to the one second base material 2ba.

  As shown in FIG. 9, the first hanging plate portion 21 is configured to hang down on the side where the fitting insertion groove 41 and the coupling insertion portion 42 are fitted in a state where the ceiling reinforcing metal fitting 1 is mounted. And the ceiling reinforcement metal fitting 1 is provided with the support plate part 24 extended from the side edge of the lower fitting part 29 of the 1st drooping board part 21. FIG. As shown in FIGS. 7 and 8, the support plate portion 24 is formed by extending the side edge of the lower fitting portion 29 of the main plate portion 20 in the horizontal direction along the plate surface of the lower fitting portion 29. And a vertical support edge 32 is formed at the tip thereof. As shown in FIGS. 9 to 12, the support plate portion 24 is attached from the lower fitting portion 29 to the first base along the longitudinal direction of the one second base material 2 ba with the ceiling reinforcing metal fitting 1 attached. The support edge 32 is configured to extend in the direction of the material 2a and to directly abut the support edge 32 against the base end portion 42a of the coupling insertion portion 42 immediately below the locking ridge 12 of the first base material 2a. .

  The second drooping plate portion 22 is formed by extending the left side portion of the metal plate constituting the main plate portion 20 downward. As shown in FIG. The drooping plate portion 22 hangs on the opposite side of the first drooping plate portion 21 across the first base material 2a. The second drooping plate portion 22 is substantially symmetrical with the first drooping plate portion 21. Specifically, the second drooping plate portion 22 includes an upper fitting portion 28 having a substantially U-shaped cross section formed at the lower edge of the main plate portion 20 and a vertical flat plate formed at the lower edge of the upper fitting portion 28. The lower fitting part 29 of a shape is provided. The upper fitting portion 28 has a shape that can be fitted onto the locking ridge 12 of the ceiling base material 2b, and as shown in FIGS. 9 to 11, the height of the locking ridge 12 of the ceiling base material 2b. Arranged on the opposite side of the first drooping plate portion 21 across the first base material 2a, and is configured to be fitted from the side to the locking ridge 12 of the other second base material 2bb. Yes. Further, the lower fitting portion 29 hangs down from the lower edge of the upper fitting portion 28 and is interposed between the lower edge of the locking ridge 12 of the other second base material 2bb and the upper edge of the installation edge 13. Configured to fit. Further, the lower fitting portion 29 is formed with a fitting projection 30 that protrudes to the back side. The fitting protrusion 30 is formed at a size and position that can be fitted into a crimping hole 45 formed at the end of the other second base material 2bb. By being fitted, the second hanging plate portion 22 is locked in the longitudinal direction of the second base material 2bb with respect to the other second base material 2b.

  As shown in FIG. 9, on the side where the second drooping plate portion 22 hangs down, the fitting insertion groove 41 and the connecting insertion portion 42 are not fitted, so that the lower fitting portion 29 of the second drooping plate portion 22 includes The support plate portion 24 is not provided. On the other hand, screw through holes 33 and 33 are formed in the upper fitting portion 28 of the second drooping plate portion 22, and the upper fitting portion 28 is engaged with the other second base material 2 bb in this portion. By being screwed to the side surface of the portion 12, the ceiling reinforcing metal fitting 1 can be integrally fixed to the second base material 2bb.

  FIGS. 9-12 shows the construction example which attached the ceiling reinforcement metal fitting 1 of Example 1 to the said ceiling structure. In this construction example, one ceiling reinforcing bracket 1 is attached to a portion where the first base material 2a and the two second base materials 2ba and 2bb are connected in a cross shape, and the ceiling reinforcing metal 1 Thus, the base end portion 42a of the connecting insertion portion 42 of the one second base material 2ba is supported so as not to be deformed during an earthquake.

  Specifically, as shown in FIGS. 9 to 12, the ceiling reinforcing metal fitting 1 has the first base material 2 a fitted in the groove 23 and the back surface of the first hanging plate portion 21 and the second hanging plate portion 22. With the side attached to one side surface of each of the second base materials 2ba and 2bb, the second hanging plate portion 22 is integrally screwed to the side surface of the other second base material 2bb by the tapping screw 50. In such a mounted state, the first hanging plate portion 21 hangs down to the side where the connecting insertion portion 42 of one second base material 2ba is fitted with the fitting insertion groove 41, and extends from the first hanging plate portion 21. The support plate portion 24 that abuts the support edge 32 at the front end against the base end portion 42a of the connection insertion portion 42 from the orthogonal direction.

  Thus, in this construction example, the ceiling reinforcing bracket 1 is integrally fixed to the other second base material 2bb in the connecting portion of the ceiling base materials 2a and 2b, and one of the second base materials. The support plate portion 24 is abutted perpendicularly from the longitudinal direction of the second base material 2ba against the base end portion 42a of the connecting insertion portion 42 of 2ba. For this reason, in this construction example, even when a strong force is applied in the direction of pulling out one second base material 2ba from the first base material 2a at the time of an earthquake, the base of the connecting insertion portion 42 of the second base material 2ba is applied. By supporting the end portion 42a with the ceiling reinforcing metal fitting 1, deformation of the base end portion 42a can be prevented.

  Moreover, in this construction example, as shown in FIGS. 9 to 12, the ceiling reinforcing bracket 1 is configured so that the upper fitting portion 28 and the lower fitting portion 29 of the first hanging plate portion 21 are connected to one second base. Since the first hanging plate portion 21 is less likely to rattle when the ceiling reinforcing metal fitting 1 is attached, the base end portion 42a of the connecting insertion portion 42 is There is an advantage that it can be firmly supported by the support plate portion 24 extending from the hanging plate portion 21.

  Moreover, in this construction example, as shown in FIGS. 9 to 12, the ceiling reinforcing metal fitting 1 is configured so that the upper fitting portion 28 and the lower fitting portion 29 of the second hanging plate portion 22 are connected to the other second base. Since it is made to fit in the side surface of material 2bb, there exists an advantage that the ceiling reinforcement metal fitting 1 can be firmly fixed to the other 2nd base material 2bb.

  Moreover, in this construction example, as shown in FIGS. 9 to 12, the ceiling reinforcing metal fitting 1 has the fitting protrusion 30 of the first drooping plate portion 21 and the caulking of the side surface of one second base material 2ba. By being fitted into the hole 45, the first drooping plate portion 21 and one second base material 2ba are engaged in the longitudinal direction of the second base material 2ba. For this reason, according to the ceiling reinforcing metal fitting 1 of the present embodiment, the second base material 2ba is not only supported by the support plate part 24 but also by the engagement of the first hanging plate part 21 and the second base material 2ba. Displacement in the direction of dropping from the base material 2a can be restricted.

  As shown in FIGS. 2 and 3, since the connection structure of the ceiling base materials 2a and 2b has a 180 ° rotationally symmetric shape, the ceiling reinforcing metal fitting 1 of this embodiment is the above construction example (FIGS. 9 to 12). It is also possible to attach to a 180 ° rotationally symmetric position. In this case, the base end part 42a of the connection insertion part 42 of the other second base material 2bb is supported by the ceiling reinforcing metal fitting 1. Furthermore, the ceiling reinforcing metal fittings 1 of the present embodiment are arranged one by one at 180 ° rotationally symmetrical positions with respect to the connection structure of the ceiling base materials 2a and 2b as in the construction example shown in FIG. Is desirable. If two ceiling reinforcing brackets 1 are attached as in this construction example, deformation of the connection insertion portion 42 of both the second base materials 2ba and 2bb can be prevented at the connection portion of the ceiling base materials 2a and 2b. .

  The ceiling reinforcing metal fitting 1a of the present embodiment is composed of a pair of reinforcing metal fitting pieces 9 and 9 attached to the connecting portions of the ceiling base materials 2a and 2b. As shown in FIG. 14, the two reinforcing metal pieces 9 and 9 have the same shape, and substantially the same shape as the ceiling reinforcing metal piece 1 of the first embodiment. That is, each reinforcing metal piece 9 is formed by bending or pressing a steel plate made of steel, and is above the portion where the ceiling base materials 2a and 2b are connected in a cross shape. A main plate portion 20 that intersects the base material 2a orthogonally, a first drooping plate portion 21 that hangs laterally from the lower right edge of the main plate portion 20 to the second base material 2b, and a left side of the main plate portion 20 A second drooping plate portion 22 that hangs from the lower edge to the side of the second base material 2b is provided. Further, the first hanging plate portion 21 and the second hanging plate portion 22 are constituted by an upper fitting portion 28 and a lower fitting portion 29, respectively. The first drooping plate portion 21 is provided with a support plate portion 24 extending from the side edge of the lower fitting portion 29. About the structure which is common between the reinforcing metal piece 9 and the ceiling reinforcing metal fitting 1 of the first embodiment, the same reference numerals are used in the text and the drawings, and the detailed description is omitted.

  The difference between the reinforcing bracket piece 9 and the ceiling reinforcing bracket 1 of the first embodiment will be described. The screw through hole 33 formed in the upper fitting portion 28 of the second hanging plate portion 22 in the ceiling reinforcing bracket 1 of the first embodiment. (Refer to FIGS. 7 and 8) is not formed on the reinforcing metal piece 9. On the other hand, the main plate portion 20 of the reinforcing metal piece 9 is formed with a pair of screwed portions including a large-diameter through hole 36a through which the tapping screw 50 can pass and a small-diameter through hole 36b through which the tapping screw 50 can be screwed. The As shown in FIG. 14A, the large-diameter through hole 36a of one reinforcing metal piece 9 and the small-diameter through hole 36b of the other reinforcing metal piece 9 overlap the main plate portions 20 of the two reinforcing metal pieces 9. In the combined state, it is designed to overlap in the thickness direction of the main plate portion 20, and the portion where the large diameter through hole 36 a and the small diameter through hole 36 b overlap is screwed with the tapping screw 50, so that FIG. As shown, the main plate portions 20 of the two reinforcing metal pieces 9 are joined so that the reinforcing metal pieces 9 can be assembled together.

  15 to 18 are construction examples in which the ceiling reinforcing bracket 1a of the first embodiment is attached to the ceiling structure. In this construction example, the two reinforcing metal pieces 9 and 9 of the ceiling reinforcing metal piece 1a are attached to the portion where the first base material 2a and the two second base materials 2ba and 2bb are connected in a cross shape. , And are arranged so as to be paired at 180 ° rotationally symmetric positions. In this state, the two reinforcing metal pieces 9 are integrated by joining the main plate portions 20 and 20 with the tapping screw 50.

  In this construction state, as shown in FIG. 18, the support plate portion 24 of the reinforcing metal piece 9 on one side is in the second end relative to the base end portion 42 a of the connection insertion portion 42 of one second base material 2 ba. The support plate portion 24 is abutted vertically from the longitudinal direction of the base material 2ba. Further, the support plate portion 24 of the other reinforcing metal piece 9 is connected to the base end portion 42a of the connecting insertion portion 42 of the other second base material 2bb from the opposite direction of the support plate portion 24 of the one reinforcing metal piece 9. The support plate 24 is abutted vertically. And the ceiling reinforcement metal fitting 1a of a present Example integrates the reinforcement metal piece piece 9 of both sides in this state, and connects both 2nd base material 2ba, 2bb by each support plate part 24,24. The base end portion 42a of the insertion portion 42 is supported from the longitudinal direction of the second base materials 2ba and 2bb. Therefore, according to the ceiling reinforcing metal fitting 1a, even when a strong force is applied in the direction of pulling out the second base materials 2ba and 2bb from the first base material 2a during an earthquake, the base end portions of the respective connecting insertion portions 42 are provided. The deformation of 42a can be prevented.

  In particular, in the ceiling reinforcing bracket 1a of the present embodiment, as shown in FIGS. 14 to 18, when the main plate portions 20, 20 of the reinforcing bracket pieces 9, 9 are joined, the second hanging plate of the reinforcing bracket piece 9 on one side is joined. The portion 22 and the first hanging plate portion 21 of the reinforcing metal piece 9 on the other side are opposed to each other, and each of the ceiling reinforcing metal pieces 1a is attached to the connecting portion of the ceiling base materials 2a and 2b. The second base material 2 b is sandwiched between the first hanging plate portion 21 and the second hanging plate portion 22. For this reason, in this embodiment, there is an advantage that the ceiling reinforcing metal fitting 1a can be firmly fixed to the connecting portion of the ceiling base materials 2a and 2b.

  Further, in this embodiment, since the pair of reinforcing metal pieces 9 and 9 are completely the same shape, there is an advantage that the types of parts can be reduced as compared with the case where the shapes of the two reinforcing metal pieces are different.

  The ceiling reinforcing bracket 1b of the present embodiment is obtained by partially changing the configuration of the ceiling reinforcing bracket 1a of the second embodiment. Specifically, in the present embodiment, as shown in FIG. 19, screw through holes 33 and 33 similar to the ceiling reinforcing bracket 1 of the first embodiment are formed in the second hanging plate portion 22 of the reinforcing bracket piece 9 a. The ceiling reinforcing bracket 1b joins the main plate portions 20 and 20 of the reinforcing bracket pieces 9a and 9a, and at the same time, screws the second hanging plate portion 22 of the reinforcing bracket piece 9a to the second base material 2b. Attached to the connecting portion of the ceiling base materials 2a and 2b. Therefore, in this embodiment, compared to the second embodiment, the reinforcing metal piece 9a is firmly fixed to the ceiling structure, and thereby, the support plate portion 24 of each reinforcing metal piece 9a. There is an advantage that the base end portion 42a of the connecting insertion portion 42 can be firmly supported. In addition, about the structure which is common in a present Example and Example 2, it attaches | subjects a common code | symbol in a sentence and a figure, and abbreviate | omits detailed description.

  The ceiling reinforcing metal fitting 1c of the present embodiment is obtained by changing the mechanism for joining the main plate portions of the reinforcing metal piece pieces from the second embodiment. Specifically, in the second embodiment, the main plate portion 20 of the reinforcing metal piece 9 is formed with screwed portions 36a and 36b for joining with the tapping screw 50, whereas the main plate of the reinforcing metal piece 9b of the present embodiment. As shown in FIG. 20A, the portion 20 includes an engagement protrusion 39 a formed by cutting and raising the vertical plate portion 25 at a right angle to the back side, and an engagement hole 39 b penetrating the vertical plate portion 25. A pair of engaging portions are provided. As shown in FIG. 20 (a), the engaging protrusions 39a of one reinforcing metal piece 9b are engaged with the engaging holes 39b of the other reinforcing metal piece 9b when the main plate portions 20 of the respective reinforcing metal pieces 9b are overlapped. As shown in FIG. 20B, the engagement hole 39b is bent so that the tip of the engagement protrusion 39a is bent so as not to fall off the engagement hole 39b. The main plate portion 20 of each reinforcing metal piece 9b, 9b can be joined by engaging with the peripheral edge of 39b. That is, the engagement protrusion 39a corresponds to the first engagement portion according to the present invention, and the engagement hole 39b corresponds to the second engagement portion according to the present invention. In addition, about the structure which is common in a present Example and Example 2, it attaches | subjects a common code | symbol in a sentence and a figure, and abbreviate | omits detailed description.

  Thus, in this embodiment, the pair of engaging portions 39a and 39b formed on the main plate portion 20 can join the main plate portion 20 of each reinforcing metal piece 9b without using a screw. Compared to the configuration, there is an advantage that the number of parts can be reduced.

  In addition, the ceiling reinforcement metal fitting of this invention can add a various change in the range which does not deviate from the summary of not only the form of the said Example but this invention.

1, 1a, 1b, 1c Ceiling reinforcement bracket 2a First base material (first ceiling base material)
2b, 2ba, 2bb Second base material (second ceiling base material)
DESCRIPTION OF SYMBOLS 3 Ceiling frame 9, 9a, 9b Reinforcing metal fitting part 11 Vertical side part 12 Locking ridge part 13 Installation edge part 20 Main plate part 21 First drooping plate part 22 Second drooping plate part 24 Support plate part 25 Main plate part 28 Upper fitting Joint part 29 Lower fitting part 30 Fitting protrusion 32 Support edge 33 Screw through hole 36a Large diameter through hole 36b Small diameter through hole 37 Engaging groove hole 39a Engaging protrusion (first engaging part)
39b engagement hole (second engagement portion)
40a, 40b connecting portion 41 fitting insertion groove 42 connecting insertion portion 42a base end portion 43 engaging projection 44 engaging groove hole 45 crimping hole 50 tapping screw

Claims (8)

The first ceiling base material in which the insertion grooves along the longitudinal direction are formed on both side surfaces, and the second ceiling base material in which the connection insertion portion extending in the orthogonal direction from the edge is formed. This is a ceiling reinforcing bracket that is attached to a cross-linked place by inserting two connecting insertion portions of the second ceiling base material into the insertion grooves on both sides of the ceiling base material. And
Above the first ceiling base material, a main plate portion that intersects the first ceiling base material orthogonally,
From the main plate portion, a first hanging plate portion that hangs to the side of one second ceiling base material,
A support plate portion extending from the first hanging plate portion in the longitudinal direction of the one second ceiling base material, and having a tip abutting against a base end portion of the connecting insertion portion of the one second ceiling base material When,
A second hanging plate portion hanging from the main plate portion to the side of the other second ceiling base material;
A ceiling reinforcing bracket, wherein the second hanging plate portion is fixed to a side surface of the other second ceiling base material. The first ceiling base material in which the insertion grooves along the longitudinal direction are formed on both side surfaces, and the second ceiling base material in which the connection insertion portion extending in the orthogonal direction from the edge is formed. This is a ceiling reinforcing bracket that is attached to a cross-linked place by inserting two connecting insertion portions of the second ceiling base material into the insertion grooves on both sides of the ceiling base material. And
Above the first ceiling base material, a main plate portion that intersects the first ceiling base material orthogonally,
From the main plate portion, a first hanging plate portion that hangs to the side of one second ceiling base material,
A support plate portion extending from the first hanging plate portion in the longitudinal direction of the one second ceiling base material, and having a tip abutting against a base end portion of the connecting insertion portion of the one second ceiling base material A first reinforcing bracket piece comprising:
Above the first ceiling base material, a main plate portion that intersects the first ceiling base material orthogonally,
A first hanging plate portion hanging from the main plate portion to the side of the other second ceiling base material;
A support plate portion that extends from the first hanging plate portion in the longitudinal direction of the other second ceiling base material and abuts on the base end portion of the connecting insertion portion of the other second ceiling base material A second reinforcing bracket piece comprising:
A ceiling reinforcing metal fitting, wherein the main plate portions of the first reinforcing metal piece and the second reinforcing metal piece are integrally joined above the first ceiling base material.   The ceiling reinforcing bracket according to claim 2, wherein the first reinforcing bracket piece and the second reinforcing bracket piece have the same shape. The first reinforcing bracket piece includes a second hanging plate portion that hangs from the main plate portion to the side of the other second ceiling base material,
The second reinforcing bracket piece includes a second hanging plate portion that hangs from the main plate portion to the side of the one ceiling base material,
In a state where the main plate portions of both the reinforcing metal pieces are joined, the second ceiling base material is sandwiched between the first hanging plate portion of one reinforcing metal piece and the second hanging plate portion of the other reinforcing metal piece. The ceiling reinforcing metal fitting according to claim 2 or claim 3, wherein A first engagement portion is formed on at least one of the main plate portions of the first reinforcing metal piece and the second reinforcing metal piece,
A second plate for integrally joining the main plate portions of the two reinforcing metal pieces by engaging the first engaging portion with at least the other of the main plate portions of the first and second reinforcing metal pieces. The ceiling reinforcing bracket according to any one of claims 2 to 4, wherein an engaging portion is formed. The second ceiling base material has a cross-sectional shape in which a wide locking ridge formed in the upper part and a wide installation edge formed in the lower part are connected vertically with narrow vertical sides. The connecting insertion portion is formed at the height of the vertical side portion of the second ceiling base material,
The said 1st drooping board part is provided with the upper fitting part which externally fits to the latching ridge part of a 2nd ceiling base material from the side, The any one of Claim 1 thru | or 5 characterized by the above-mentioned. The ceiling reinforcement bracket described. The second ceiling base material has a cross-sectional shape in which a wide locking ridge formed in the upper part and a wide installation edge formed in the lower part are connected vertically with narrow vertical sides. The connecting insertion portion is formed at the height of the vertical side portion of the second ceiling base material,
The first hanging plate portion includes a lower fitting portion that fits between the lower edge of the locking ridge and the upper edge of the installation edge of the second ceiling base material. The ceiling reinforcing metal fitting according to any one of claims 1 to 6.   The first hanging plate portion includes a fitting protrusion that is a side surface of the second ceiling base material and is fitted into a through-hole formed at a height at which the connection insertion portion is formed. The ceiling reinforcement metal fitting of any one of Claim 1 thru | or 7.

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