JP2019078077A - Ceiling base material reinforcement structure - Google Patents

Abstract

To provide a ceiling base material reinforcing structure capable of reinforcing a ceiling base material with a small installation labor and time without requiring a large installation space.SOLUTION: A ceiling base material reinforcement structure 1 which reinforces a ceiling base material provided with field edge 2 and a field edge holder 3 comprises: a reinforcing member 10 provided on the inner side of the field edge holder 3; and a fixing member (a clip 20) for fixing the reinforcing member 10 to the field edge holder by being sandwiched from both sides in the width direction of the field edge holder 3. The reinforcing member 10 preferably comprises: a first side plate portion 11 in contact with a side surface portion (a web 3b) of the field edge holder 3; a second side plate portion 12 parallel to the first side plate portion 11 and arranged at intervals; and a connecting plate 13 connecting the first side plate portion 11 and the second side plate portion 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ceiling base material reinforcing structure.

  As a structure for reinforcing a ceiling base material having a field edge support supported by a suspension bolt and a field edge supported by the field edge support, for example, the field edge support and the upper end of the suspension bolt are connected by a brace And a structure in which a reinforcing material extending along the border is laid on the border (see, for example, Patent Document 1). According to such a structure, the rigidity of the ceiling base material can be enhanced to improve the earthquake resistance.

JP, 2011-21424, A

  The above-described conventional reinforcing structure requires a large installation space for mounting the reinforcing member. Furthermore, since a reinforcement member is a large-scale thing, there existed a problem of requiring much construction effort and time.

  Therefore, the present invention has been made to solve the above-mentioned problems, and provides a ceiling base material reinforcing structure capable of reinforcing the ceiling base material with a small amount of construction work and time without requiring a large installation space. To be a task.

  The present invention for solving the above problems is a ceiling base material reinforcing structure for reinforcing a ceiling base material provided with a field edge and a field edge receiver, the reinforcing member provided inside the field edge receiver, and the reinforcement It is a ceiling base material reinforcement structure characterized by having a fixing member which pinches a member from both sides of the cross direction of the field edge holder, and it fixes to the field edge holder.

  According to such a configuration, since the reinforcing member is provided on the inner side of the rim, no new installation space is required. In addition, since the reinforcing member may be inserted into the inside of the field edge receptacle and fixed to the field edge receptacle by the fixing member, the labor and time for construction can be reduced.

  In the present invention, the reinforcing member includes: a first side plate portion contacting the side surface portion of the rim, a second side plate portion parallel to the first side plate portion and spaced apart, and the first side plate portion It is preferable to have a connecting plate portion connecting the side plate portion and the second side plate portion. According to such a configuration, since the two surfaces of the first side plate portion and the second side plate portion oppose stress acting on the reinforcing member, the rigidity of the reinforcing member can be enhanced.

  And, in the present invention, the reinforcing member preferably has an S-shaped cross section. According to such a configuration, since the number of plate portions intersecting the first side plate portion and the second side plate portion increases, the rigidity of the reinforcing member can be enhanced.

  Further, in the present invention, the cross section has a U-shaped cross section including an upper flange, a web and a lower flange, and the fixing member has the cross section so as to fix the cross section and the cross section. It is a clip which clamps the rim holder from both sides in the width direction and locks the lip portion of the rim at the lower end portion, and the clip is provided with the joint portion, the rim portion holding portion and the rim edge locking portion The first side plate portion has a first member and a second member, and the first side plate portion sandwiches the web of the field edge receiver with the field edge receiver of the first member. It is preferable that the edge receiving and holding portion and the web of the edge receiving portion be fixed, and the second side plate be fixed to the edge receiving and holding portion of the second member. According to such a configuration, since the reinforcing member is fixed to each of the first member and the second member, the reinforcing member, the edge support and the clip can be firmly integrated and fixed. Since the web is sandwiched between the first member and the reinforcing member, the field edge receiver has a large reinforcing effect.

  Furthermore, in the present invention, the field edge locking portion of the first member includes a pair of locking pieces that lock the lip portions on both sides of the field edge, and the field edge locking of the second member The part comprises one locking piece for locking the lip part on one side of the field edge, a reinforcing cover is attached to the first member, and the reinforcing cover is the part of the first member It is preferable to have a clip fixing portion in contact with the edge receiving and holding portion and a field contact portion in contact with the upper surface of the field edge. According to such a configuration, when the second member is provided with the one locking piece, it can be mounted on the field edge in a state where the first member and the second member are connected. That is, if one locking piece is cut out and the other locking pieces are arranged in three directions, the clip can be inserted inside the field edge by shifting the clip obliquely. This makes it possible to easily attach the clip. Further, by providing the reinforcing cover including the clip fixing portion and the field edge abutting portion, it is possible to counter the force of the field edge holder and the clip to rotate toward the first member with respect to the field edge.

  Further, in the present invention, it is preferable that the reinforcing cover further includes a field edge engaging portion engaged with the lip portion of the field edge. According to such a configuration, since the reinforcing cover has the field edge engaging portion and can prevent floating from the field edge, the field edge holder and the clip try to rotate to the second member side with respect to the field edge. You can fight against the power.

  Further, in the present invention, it is preferable that the reinforcing cover further includes a rim fixing portion fixed to a side surface of the rim. According to such a configuration, the field edge holder and the clip can be further opposed by the force to rotate with respect to the field edge.

  ADVANTAGE OF THE INVENTION According to this invention, the outstanding effect of being able to reinforce a ceiling base material with little installation effort and time, without requiring a large installation space is exhibited.

It is a perspective view showing a ceiling base material reinforcement structure concerning an embodiment of the present invention. It is a side view showing a ceiling base material reinforcement structure concerning an embodiment of the present invention. (A) is a side view showing a reinforcing member, (b) is a front view. It is a perspective view showing a reinforcement member. It is a front view showing a clip and a protection cover. It is a rear view showing the second member of a clip. It is an exploded perspective view showing a clip. (A) is a top view which showed the reinforcement cover, (b) is a side view, (c) is a front view. It is a perspective view showing a reinforcement cover. It is the side view which showed the positional relationship of each member of the ceiling base material reinforcement structure which concerns on embodiment of this invention, a suspension bolt, and a brace. It is the side view which showed the modification of the positional relationship of each member of the ceiling base material reinforcement structure which concerns on embodiment of this invention. It is the side view which showed the modification of the ceiling base material reinforcement structure which concerns on embodiment of this invention.

  A ceiling base material reinforcement structure according to an embodiment of the present invention will be described in detail with reference to the drawings. In the present embodiment, a portion of the ceiling base material reinforcing structure viewed from the reinforcing cover side along the axial direction of the edge is referred to as a front, and a portion viewed along the axial direction of the edge receiver is referred to as a side.

  As shown in FIG. 1, the ceiling base material reinforcing structure 1 according to the present embodiment is a structure for reinforcing a ceiling base material including a field edge 2 and a field edge receiver 3, and the field edge 2 and the field edge receiver In the portion connecting the three, the edge support 3 and the clip 20 are reinforced. The edge 2 has a groove shape, and includes a bottom plate portion 2a, side plate portions 2b and 2b rising from both sides in the width direction of the bottom plate portion 2a, and a lip portion 2c formed on the upper end of the side plate portion 2b. . The lip portion 2c protrudes inward. The edge support 3 has a U-shaped cross section and includes an upper flange 3a, a web 3b and a lower flange 3c. The field rim 2 is disposed below the field rim 3 and orthogonal to the field rim 3.

  As shown in FIG. 1 and FIG. 2, the ceiling base material reinforcing structure 1 includes a reinforcing member 10, a clip 20, and a reinforcing cover 50. The clip 20 serves to connect the field edge 2 and the field edge receiver 3 and also serves as a fixing member for fixing the reinforcing member 10 to the field edge receiver 3.

  The reinforcing member 10 is a portion that reinforces the edge support 3 at the connection portion between the edge 2 and the edge support 3, and is provided inside the edge support 3. As shown also in FIG. 3 and FIG. 4, the reinforcing member 10 is formed by bending a plate material made of metal. Reinforcement member 10 may be constituted by extrusion shape material. The reinforcing member 10 includes a first side plate portion 11, a second side plate portion 12, and a connecting plate portion 13, and has an S-shaped cross section.

  As shown in FIG. 10, in the present embodiment, the lower end portion of the brace 6 is connected to the edge support 3 on both sides of the suspension bolt 5. The reinforcing member 10 extends on both sides centering on the suspension bolt 5 in the vicinity of the connection position of the brace 6. A clip 20 and a reinforcing cover 50 are provided at both side positions of the reinforcing member 10, and the field edge 2 is fixed to the lower side of the field edge receiver 3. The clip 20 and the reinforcing cover 50 are provided at two places on each of the left and right sides of the reinforcing member 10 across the lifting bolt 5. The extension length dimension of the reinforcing member 10 and the number of installation places of the clip 20 and the reinforcing cover 50 are appropriately set according to the required strength of the brace 6.

  In addition, the installation position of the reinforcement member 10 is not limited to the said structure. For example, as shown in FIG. 11, the reinforcing member 10 may extend on both sides with the clip 20 and the reinforcing cover 50 as the center. In this case, it is preferable to arrange the brace 6 so that the clip 20 and the reinforcing cover 50 are sandwiched between the pair of left and right braces 6 and 6. With such a configuration, the stress acting from the brace 6 can be received by the reinforcing member 10.

  The first side plate portion 11 is a portion that contacts the web 3 b (side surface portion) of the edge support 3. In the first side plate portion 11, a screw V for fixing the reinforcing member 10 to the edge support 3, the clip 20 and the reinforcing cover 50 is driven. At the lower end of the first side plate portion 11, an extending horizontal plate portion 15 extending to the second side plate portion 12 side is continued. The overhanging dimension of the overhanging horizontal plate portion 15 is equal to the width dimension of the connecting plate portion 13.

  The second side plate portion 12 is disposed in parallel with the first side plate portion 11 and at an interval in the width direction of the edge receiver 3. The second side plate portion 12 is provided on the upper side of the first side plate portion 11. The height dimension of the second side plate portion 12 and the height dimension of the first side plate portion 11 are equal to the inner dimension between the upper flange 3a and the lower flange 3c of the edge receiver 3 in total. A screw V for fixing the reinforcing member 10 to the clip 20 is driven into the second side plate portion 12. At the upper end of the second side plate 12, an overhanging horizontal plate 15 extending to the first side plate 11 is continuous. The overhanging dimension of the overhanging horizontal plate portion 15 is substantially equal to the width dimension of the connecting plate portion 13.

  The connection plate portion 13 is a portion connecting the first side plate portion 11 and the second side plate portion 12. The connecting plate portion 13 extends in the horizontal direction, and is connected to the lower end of the second side plate portion 12 continuously from the upper end of the first side plate portion 11. In the present embodiment, the height dimension of the second side plate portion 12 is larger than the height dimension of the first side plate portion 11, and the connecting plate portion 13 is lower than the middle portion in the height direction of the reinforcing member 10. It is placed in position. According to such a configuration, since the center of gravity of the reinforcing member 10 is lowered, it becomes difficult for the rim 3 to fall over. The width dimension of the connecting plate portion 13 is substantially equal to the projecting dimension of the upper flange 3a and the lower flange 3c of the edge receiver 3, and the outer side surface of the second side plate portion 12 is the upper flange 3a and the lower portion of the edge receiver 3. It is configured to be in the same plane as the end face of the flange 3c. The reinforcing member 10 having the above-described configuration can be accommodated in the inner space of the rim 3 in a state of being in contact with the inner surface of the upper flange 3a, the web 3b and the lower flange 3c of the rim 3 respectively. The connection plate portion 13 is not limited to extending in the horizontal direction, and may be inclined.

  As shown in FIG. 1 and FIG. 2, the clip 20 clamps the edge support 3 and the reinforcing member 10 from both sides in the width direction, and locks the edge 2 at its lower end. As also shown in FIGS. 5 to 7, the clip 20 has a first member 21 and a second member 22. The upper end portions of the first member 21 and the second member 22 are joined via the bolt B.

  The first member 21 is formed by bending a metal plate. The first member 21 is provided with a joint portion 23, a field edge receiving and holding portion 24 and a field edge engaging portion 25. The bonding portion 23 is a portion in contact with the bonding portion 23 of the second member 22. The joint portion 23 extends in the longitudinal direction at the upper end portion of the first member 21. Bolt holes 26 are formed in the joint portion 23.

  The edge receiving and holding portion 24 and the edge receiving and holding portion 29 of the second member 22 hold the edge receiving portion 3 and the reinforcing member 10 from both sides. Further, the edge receiving and holding portion 24 sandwiches the web 3 b of the edge receiving 3 with the reinforcing member 10. The edge receiving and holding portion 24 includes a horizontal portion 24 a bent from the lower end of the joint portion 23 and a hanging portion 24 b bent from the tip of the horizontal portion 24 a. The horizontal portion 24 a abuts on the upper surface of the upper flange 3 a of the rim 3. The hanging portion 24 b abuts on the outer surface of the web 3 b of the edge support 3. The height dimension of the hanging portion 24 b is larger than the height dimension of the edge holder 3. The lower end portion of the hanging portion 24 b protrudes below the lower end of the edge holder 3. The lower portion of the hanging portion 24 b has a smaller width and can be inserted inside the field edge 2. Screw holes 27 are formed in the hanging portion 24b.

  The field edge locking portion 25 is a portion for locking the lip portion 2 c of the field edge 2 from the inside lower side. The edge locking portion 25 includes an overhanging portion 25a projecting outward from the lower end of the hanging portion 24b, and engaging pieces 25b and 25b provided on both sides in the width direction of the overhanging portion 25a. The overhanging portion 25 a overhangs in the horizontal direction along the axial direction of the field edge 2. The reinforcement bead 28 straddling the lower end of the hanging portion 24 b is provided at the base end of the overhanging portion 25 a. The locking piece 25b has a J-shaped cross section and engages with the lip portion 2c from the lower side.

  The second member 22 is formed by bending a metal plate. The second member 22 has a thickness slightly smaller than that of the first member 21. The thickness of the second member 22 may be the same as the thickness of the first member 21. The second member 22 is provided with a joint portion 23, a edge receiving and holding portion 29 and a edge engaging portion 30. The bonding portion 23 is a portion that abuts on the bonding portion 23 of the first member 21. The joint portion 23 has the same shape as the joint portion 23 of the first member 21 and extends in the vertical direction at the upper end portion of the second member 22. Bolt holes 26 are formed in the joint portion 23.

  The edge receiving and holding portion 29 is a portion that holds the edge receiving 3 from both sides with the edge receiving and holding portion 24 of the first member 21. The edge receiving and holding portion 29 includes a horizontal portion 29 a bent from the lower end of the joint portion 23 and a hanging portion 29 b bent from the tip of the horizontal portion 29 a. The horizontal portion 29 a has the same shape as the horizontal portion 24 a of the first member 21, and abuts on the upper surface of the upper flange 3 a of the edge receiver 3. The hanging portion 29 b covers the open end of the U-shaped cross section of the field edge receiver 3 and abuts on the second side plate portion 12 of the reinforcing member 10. The height dimension of the hanging portion 29b is equal to the height dimension of the hanging portion 24b. The lower end portion of the hanging portion 29 b protrudes below the lower end of the edge holder 3. The lower portion of the hanging portion 29b is cut out obliquely at one side (see FIGS. 6 and 7). Screw holes 27 are formed in the hanging portion 29b.

  The field edge locking portion 30 is a portion for locking one lip portion 2 c of the field edge 2 from the inside. The field edge locking portion 30 includes a protruding portion 30a protruding outward from the lower end of the hanging portion 29b, and a locking piece 30b provided on one side in the width direction of the protruding portion 30a. The overhanging portion 30 a overhangs in the horizontal direction along the axial direction of the field edge 2. The width dimension of the overhanging portion 30 a is smaller than the width dimension of the overhanging portion 25 a of the first member 21. The reinforcement bead 28 straddling the lower end of the hanging portion 29 b is provided at the base end of the overhanging portion 30 a. The locking piece 30b has a J-shaped cross section and engages with the lip portion 2c from the lower side. The locking piece 30b of the second member 22 is formed only on one side, and not formed on the other side.

  The clip 20 configured as described above temporarily fixes the first member 21 and the second member 22 in a slack state with a bolt B in advance. Then, after the reinforcing member 10 is attached to the rim 3, the first member 21 is locked to the rim 2. Thereafter, the first member 21 is attached to the edge holder 3 with the second member 22 rotated upward. The second member 22 is rotated downward and locked to the rim 2. At this time, since the second piece 22 is provided with the locking piece 30 b only at one side, the field edge locking portion 30 can be inserted into the field edge 2. That is, the first and second members 21 and 22 can be attached to the field edge 2 and the field edge holder 3 while being connected.

  The reinforcing cover 50 suppresses the field edge receiver 3 from rotating (tilting) with respect to the field edge 2 and reinforces the engagement strength of the clip 20 with the field edge 2. The reinforcing cover 50 is attached to the first member 21. The reinforcing cover 50 is formed by bending a metal plate. The reinforcing cover 50 has a clip fixing portion 51, a horizontal projecting portion 52, a field edge engaging portion 53, and a field edge fixing portion 54.

  The clip fixing portion 51 extends in the vertical direction and abuts on the outer surface of the hanging portion 24 b of the first member 21. Screw holes 55 are formed in the clip fixing portion 51. The screw hole 55 is formed at a position corresponding to the screw hole 27 of the first member 21. The horizontal projecting portion 52 protrudes outward from the lower end of the clip fixing portion 51. The horizontal overhanging portion 52 covers the field edge locking portion 25 from the upper side, and extends by a predetermined length from the tip of the field edge locking portion 25. At the base end of the horizontal projection 52, a reinforcing bead 58 straddling the lower end of the clip fixing portion 51 is provided. The horizontal overhang portion 52 is formed with a bead 56 for reinforcing the reinforcing cover 50. The bead 56 extends in the axial direction of the field edge 2 and is formed to project upward. The portion of the horizontal overhang 52 that covers the field edge locking portion 25 at the proximal end extends outward beyond the width of the field edge 2. Both ends in the width direction of the base end of the horizontal overhang portion 52 become a field contact portion 52 a (see FIGS. 1, 8 and 9) that contacts the top surface of the field edge 2. The portion of the horizontal projecting portion 52 that protrudes from the tip of the field edge locking portion 25 is narrower than the dimension between the lip portions 2 c and 2 c of the field edge 2.

  The field edge engaging portion 53 engages with the lip portions 2 c and 2 c of the field edge 2 from the inside. The field edge engaging portion 53 includes engaging pieces 53 a and 53 a provided on both sides of a portion of the horizontal overhang portion 52 that protrudes from the tip end of the field edge locking portion 25. The engagement piece 53a has a J-shaped cross section and engages with the lip portion 2c from the lower side.

  The field edge fixing portion 54 is screwed in contact with the side plate portion 2 b (side surface) of the field edge 2 from the outside. The field edge fixing portion 54 is composed of hanging plate portions 54 a and 54 a provided on both sides of a portion (base end portion) of the horizontal overhang portion 52 covering the field edge locking portion 25. The hanging plate portion 54 a extends in the vicinity of the lower end of the side plate portion 2 b of the edge 2 to a position slightly higher than the lower end. Screw holes 57 are formed in the hanging plate portion 54a.

  In the present embodiment, the reinforcing cover 50 is provided not on the side of the second member 22 on which one locking piece 30b is provided, but on the side of the first member 21 on which two locking pieces 25b are provided. This is because the second member 22 having the smaller number of locking pieces 30b is more likely to be inclined to the upper side of the field edge 2 and a stress acts in the direction in which the first member 21 approaches the field edge 2.

  The reinforcing cover 50 configured as described above is attached after the clip 20 is attached. The reinforcing cover 50 inserts the engagement edge 53a into the lip portion 2c by inserting the field edge engagement portion 53 into the inside of the field edge 2 by shifting it diagonally, and then making the horizontal projection 52 horizontal. Let Then, the clip fixing portion 51 is brought into contact with the outer surface of the hanging portion 24b of the first member 21 and fixed with a screw V (see FIGS. 1 and 2). A screw V is hit on the side plate portion 2 b of the field edge 2 from the side of the field edge fixing portion 54 to fix the reinforcing cover 50 and the field edge 2. Thereby, the edge support 3, the reinforcing member 10, the clip 20, the reinforcing cover 50 and the edge 2 are integrally fixed.

  According to the ceiling base material reinforcing structure 1 according to the present embodiment, since the reinforcing member 10 is mounted on the inner side of the edge support 3, it is not necessary to provide a separate installation space as in the prior art. Since the reinforcing member 10 is mounted in contact with the inner peripheral surface of the rim 3, the positioning of the reinforcing member 10 is easy and the reinforcing effect is high. Furthermore, since the reinforcing member 10 is S-shaped in cross section and has the connecting plate portion 13 intersecting the first side plate portion 11 and the second side plate portion 12, the rigidity of the reinforcing member 10 can be enhanced. In particular, since the overhanging horizontal plate portions 15, 15 are provided at the upper and lower ends of the reinforcing member 10, the rigidity of the reinforcing member 10 can be further enhanced.

  Further, since the reinforcing member 10 is temporarily fixed to the rim 3 and the clip 20 and the reinforcing cover 50 are mounted and fixed with the screw V, the rim 3, the reinforcing member 10, the clip 20 and the reinforcing cover 50 are It can be easily fixed together. Therefore, the installation labor and time of the ceiling base material reinforcement structure 1 can be reduced.

  Furthermore, in the present embodiment, the edge support 3 is held between the first member 21 and the second member 22 of the clip 20, and the reinforcing member 10 is in contact with the first member 21 and the second member 22. The reinforcing member 10, the rim 3 and the clip 20 can be firmly integrated.

  Further, in the present embodiment, by attaching the reinforcing cover 50 to the clip 20, the clip 20 can resist the force to rotate with respect to the field edge 2, so the fixing strength of the field edge 2 and the field edge receiver 3 can be reduced. It can be enhanced. Specifically, when the clip 20 is inclined to the first member 21 side, the first member 21 is received by the clip fixing portion 51. The stress that the reinforcing cover 50 tends to rotate is opposed by flowing from the edge contact portion 52 a to the upper surface of the edge 2. This makes it possible to hold the field edge holder 3 and the clip 20 about to rotate. Furthermore, since the reinforcing cover 50 has the field edge fixing portion 54 fixed to the side plate portion 2 b of the field edge 2, the reinforcing cover 50 is firmly fixed to the field edge 2. Furthermore, the reinforcing cover 50 can also be fixed to the clip 20 with a screw. Therefore, the fixing strength of the field edge 2 and the field edge receiver 3 can be further enhanced.

  Furthermore, in the present embodiment, since the brace 6 is connected to the installation portion of the reinforcing member 10, the stress acting from the brace 6 can be received by the reinforcing member 10. In particular, since the clips 20 are provided on both sides of the connection position of the brace 6 to fix the reinforcing member 10, the reinforcing member 10 can be firmly fixed in a stable state.

  As mentioned above, although the form for implementing this invention was each demonstrated, this invention is not limited to said embodiment, A design change, such as material, a shape, a magnitude | size, is possible in the range which does not deviate from the meaning of this invention. It is. For example, in the above-described embodiment, one locking piece of the clip 20 is removed, and three locking pieces 25b, 25b, and 30b are provided, but the four corners of the tip of the overhang portion 25a and 30a A locking piece may be provided for each. In this case, as shown in FIG. 12, the reinforcing cover 50 may not be provided. The first side plate portion 11 of the reinforcing member 10, the web 3b of the edge support 3, and the first member 21 of the clip 20 are fixed with a screw V, and the second side plate portion 12 of the reinforcing member 10 and the The two members 22 may be fixed by another screw V. In this way, the first member 21 and the second member 22 can be respectively fixed to the reinforcing member 10 even before sandwiching the edge holder 3 with the clip 20. Moreover, it can construct easily from the both sides of field rim 3.

  Moreover, in the said embodiment, although the reinforcement member 10 is presenting cross-sectional S-shape shape, it is not limited to this. The reinforcing member 10 may have another shape such as, for example, a rectangular cross-sectional shape, an H-shaped cross-sectional shape, or a U-shaped cross-sectional shape.

DESCRIPTION OF SYMBOLS 1 Ceiling base material reinforcement structure 2 field edge 3 field edge holder 10 reinforcement member 11 1st side plate part 12 2nd side plate part 13 connecting plate part 20 clip 21 1st member 22 2nd member 24 field edge reception pinching part 25 field edge engagement person Stop portion 25b Locking piece 29 Field edge holding and holding portion 30 Field edge locking portion 30b Locking piece 50 Reinforcement cover 51 Clip fixing portion 52 Horizontal overhang portion 52a Field edge contact portion 53 Field edge engaging portion 53a Engagement piece

Claims (7)

In the ceiling base material reinforcing structure for reinforcing the ceiling base material having the edge and the edge,
A ceiling base material comprising: a reinforcing member provided inside the field edge receptacle; and a fixing member for fixing the reinforcement member to the field edge receptacle by sandwiching the reinforcement member from both sides in the width direction of the field edge receptacle. Reinforcement structure. The reinforcing member includes a first side plate portion that abuts on a side surface portion of the rim, a second side plate portion that is disposed parallel to the first side plate portion and spaced apart, the first side plate portion, and the first side plate portion. The ceiling base material reinforcement structure according to claim 1, further comprising: a connecting plate portion connecting the second side plate portion. The ceiling base material reinforcing structure according to claim 2, wherein the reinforcing member has an S-shaped cross section. The edge support has a U-shaped cross section with an upper flange, a web and a lower flange,
The fixing member is a clip that clamps the field edge holder from both sides in the width direction and locks the lip portion of the field edge at the lower end portion so as to fix the field edge and the field edge receiver,
The clip has a first member and a second member respectively provided with a joint portion, a field edge receiving and holding portion, and a field edge engaging portion.
The first side plate portion sandwiches the web of the field edge receiver with the field edge receiver of the first member, the field edge receiver of the first member and the field edge receiver. Fixed to the web,
The ceiling base material reinforcing structure according to claim 2 or 3, wherein the second side plate portion is fixed to the edge receiving and holding portion of the second member. The field edge locking portion of the first member includes a pair of locking pieces that lock the lip portions on both sides of the field edge,
The field edge locking portion of the second member includes one locking piece for locking the lip portion on one side of the field edge,
A reinforcing cover is attached to the first member,
The said reinforcement cover has the clip fixing | fixed part contact | abutted to the said field edge receiving holding part of the said 1st member, and the field edge contact part contact | abutted on the upper surface of the said field edge. Ceiling base material reinforcement structure. The ceiling base material reinforcing structure according to claim 5, wherein the reinforcing cover further has a field edge engaging portion which engages with the lip portion of the field edge. The ceiling base material reinforcing structure according to claim 5 or 6, wherein the reinforcing cover further has a field edge fixing portion fixed to a side surface of the field edge.

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