JP2018123576A - Connection metal fitting and ceiling structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection metal fitting and a ceiling structure capable of supporting a ceiling joist in tilted state, securing earthquake resistance.SOLUTION: In a connecting metal fitting 1 for connecting a ceiling joist 2 composed of a groove type stud member having a lip portion 2c and a ceiling joist receiving member 3 supporting the ceiling joist 2, a locking member 10 which is fixed to the ceiling joist receiving member 3 and whose lower end engages the lip portion 2c so that the ceiling joist 2 can be tilted, and a fixing member 30 which is fixed to the side surface (web 3a) of the ceiling joist receiving member 3 and whose lower end is fixed to the side surface (side surface portion 2b) of the ceiling joist 2, are provided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connection fitting for connecting a field edge and a field edge receiver and a ceiling structure using the same.

  The ceiling base material is configured by connecting a field edge to a field edge receiver suspended from an upper structure. The field edge and the field edge receiver are arranged in a grid pattern. The field edge receiver is made of a metal channel material having a U-shaped cross section that is open to the side, and the field edge is made of a metal having a C-shaped cross section that opens upward and has lip portions facing each other at the upper end. Stud material is often used. For example, a metal fitting that connects a field edge and a field edge receiver has a structure as shown in Patent Document 1. The connection metal fitting of patent document 1 is called a clip, and is provided with the standing board part which covers a field edge receiver from a side part, and the latching | locking part extended below the standing board part. The locking portion is inserted inside the field edge to lock the lip portion from below.

  By the way, in recent years, earthquake resistance is often required. Since the above-mentioned clip is weak in earthquake resistance, a connecting metal fitting that is connected to a field edge and a field edge receiver using screws or bolts is used (for example, see Patent Document 2). The connection fitting of Patent Document 2 includes a first fixing portion that covers the field edge receiver from above, and a second fixing portion that is provided continuously from the lower end portion of the first fixing portion and covers the field edge from above. The first fixing portion has a U-shaped cross section that opens downward, and one side plate portion of the first fixing portion is screwed to the side surface of the field edge receiver. The second fixing portion is formed on each side of the lower end portion of the first fixing portion. The second fixing portion has a U-shaped cross section that opens downward, and the side plate portion of the second fixing portion is screwed to both side surfaces of the field edge.

JP 2014-218777 A JP2015-129530A

  Since the 2nd fixing | fixed part is orthogonally crossed with respect to the side plate part of the 1st fixing | fixed part, the connection metal fitting of patent document 2 was not able to respond | correspond to the inclination ceiling in which the ceiling surface inclined. On the other hand, in the clip of Patent Document 1, since the field edge can be inclined and locked, it can cope with an inclined ceiling, but it has not been able to ensure earthquake resistance.

  Then, this invention is made | formed in order to solve the said problem, and it aims at providing the connection metal fitting and ceiling structure which can support a sloping field edge, ensuring seismic resistance. To do.

  The present invention for solving the above-mentioned problems is a coupling fitting that connects a field edge made of a grooved stud material having a lip portion and a field edge support that supports the field edge, and is fixed to the field edge receiver. And a locking member that locks the lip portion so that the lower end portion thereof can incline the field edge, and a fixing member that is fixed to a side surface of the field edge receiver and that has a lower end portion fixed to the side surface of the field edge. It is provided with these.

  According to the connection metal fitting of the said structure, after locking a field edge in the state inclined by the locking member, a field edge and a field edge receptacle can be firmly fixed via a fixing member. Therefore, it can be easily fixed in an inclined state while securing seismic resistance to the field edge.

  In the connection fitting of the present invention, the locking member and the fixing member are arranged so as to sandwich the field receiver, and the locking member, the field receiver and the fixing member are fastened. What is fixed with the member is preferable. According to such a configuration, the fixing strength can be increased by sandwiching the field receiver between the locking member and the fixing member.

  Further, in the connection fitting of the present invention, the field edge receiver is made of a channel-shaped channel material having a U-shaped cross section that opens laterally, and the fixing member is fixed to a side surface of the field edge and the field A pair of fixed plate portions extending to a position of the edge receiver, and a connection plate portion that connects the pair of fixed plate portions to each other and is fixed to a side surface of the field edge receiver, It is preferable that the upper portion and the connecting plate portion are formed with a notch portion for accommodating the flange of the field edge receiver. According to such a configuration, the flange of the field receiver can be engaged with the fixing member, and the side surface of the field receiver can be brought into contact with the connecting plate portion of the fixing member. Accordingly, the field edge receiver and the fixing member can be firmly fixed with screws or bolts, and the fixing member can be prevented from rotating with respect to the field edge receiver.

  Further, in the connection fitting according to the present invention, the locking member includes a horizontal plate portion that contacts the upper surface of the field receiver, a vertical plate portion that contacts a side surface of the field receiver, and a lower end portion of the vertical plate portion. It is preferable that the horizontal plate portion is formed with a cut-down portion that is cut down at a part of the plate and hooked to an end portion of the flange of the field edge receiver. . According to such a configuration, since the locking member can be easily temporarily fixed to the field edge receiver, the field edge is in a stable state before the fixing member is permanently fixed to the field edge receiver via the fastening member. It can be locked with.

  Further, in the connection fitting of the present invention, the locking member includes a horizontal plate portion that contacts the upper surface of the field receiver, a vertical plate portion that contacts a side surface of the field receiver, and a lower end portion of the vertical plate portion. And a notch portion formed in the connecting plate portion so that the horizontal plate portion is inserted through the notch portion, and the horizontal plate portion includes a plate. It is preferable that a cut-and-raised portion is formed so that a part of the fixing plate is inclined obliquely upward to hook the connecting plate portion of the fixing member. According to such a configuration, the fixing member can be easily temporarily fixed to the locking member, so that the fixing member is in a stable state before the fixing member is permanently fixed to the field receiver via the fastening member. It can be temporarily fixed to the field edge and the locking member.

  A second invention for solving the above-described problem is a ceiling structure in which a field edge and a field edge receiver are connected using the connection fitting according to any one of claims 1 to 5, The field edge receiver is formed in a curved shape that is linear in a side view and has an arc shape in a plan view, and the field edge is connected to the field edge receiver in an inclined state. It is a ceiling structure. According to the ceiling structure having the above-described configuration, the field edge can be fixed to the field edge support in an inclined state while ensuring earthquake resistance, and a ceiling surface having a conical curved surface shape can be easily formed. Can do.

  According to the connecting metal fitting and the ceiling structure according to the present invention, it is possible to provide an excellent effect that the field edge can be inclined and supported while securing the earthquake resistance.

It is the perspective view which showed the state which connected the field edge and the field edge receiver using the connection metal fitting which concerns on embodiment of this invention. It is the disassembled perspective view which showed the arrangement | positioning state of the connection metal fitting which concerns on embodiment of this invention, a field edge, and a field edge receiver. It is the figure which showed the state which connected the field edge and the field edge receiver using the connection metal fitting which concerns on embodiment of this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a side view. It is. It is the figure which showed the locking member of the connection metal fitting which concerns on embodiment of this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a side view. It is the perspective view which showed the securing member of the connection metal fitting which concerns on embodiment of this invention. It is the figure which showed the fixing member of the coupling metal fitting which concerns on embodiment of this invention, Comprising: (a) is a top view, (b) is a front view, (c) is a side view. (A) And (b) is the perspective view which showed the fixing metal fitting of the connection metal fitting which concerns on embodiment of this invention. It is the perspective view which showed the ceiling structure which concerns on embodiment of this invention.

  A connection fitting and a ceiling structure according to an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the connecting metal 1 is a metal that connects the field edge 2 and the field edge receiver 3.

  The field edge 2 is made of a metal grooved stud material having a C-shaped cross section opened upward, and includes a bottom surface portion 2a, a side surface portion 2b, and a lip portion 2c. The side surface portions 2b rise from both ends in the width direction of the bottom surface portion 2a and are parallel to each other. The lip portion 2c protrudes inward from the upper end of the side surface portion 2b and faces each other. The field receiver 3 is made of a channel-shaped channel material having a U-shaped cross section that opens to the side, and includes a web 3a and upper and lower flanges 3b and 3b. The field edge receiver 3 is supported by a suspension bolt 4 suspended from an upper structure (not shown) such as a beam or a floor slab via a suspension hanger 5. In addition, the structure of the field edge 2 and the field edge receiver 3 and the support structure of the field edge receiver 3 are examples, and are not limited to the said structure.

  As shown in FIGS. 1 to 3, the connection fitting 1 includes a locking member 10 and a fixing member 30. The connecting metal fitting 1 can be connected to the field edge receiver 3 with the field edge 2 inclined (see FIGS. 1 and 3C). The locking member 10 and the fixing member 30 are disposed so as to sandwich the field receiver 3.

  The upper portion of the locking member 10 is fixed to the field edge receiver 3, and the lower end portion of the locking member 10 locks the lip 2 c of the field edge 2. As shown in FIGS. 4 and 5, the locking member 10 is formed by appropriately bending a single metal plate (for example, an aluminum alloy plate). The locking member 10 includes a horizontal plate portion 11, a vertical plate portion 12 that hangs down from an end portion of the horizontal plate portion 11, and a locking portion 13 that is continuous with a lower portion of the vertical plate portion 12.

  The horizontal plate portion 11 is a portion that comes into contact with the upper surface of the field receiver 3 (the upper surface of the upper flange 3b). The horizontal plate portion 11 extends in a horizontal direction orthogonal to the upper end of the vertical plate portion 12, and the protruding size of the horizontal plate portion 11 is larger than the protruding size of the flange 3b.

  A cut-down portion 14 is formed on the protruding tip side of the horizontal plate portion 11. The cut-down portion 14 cuts down a part of the plate and hooks the end portion of the flange 3 b of the field edge receiver 3. The cut-down portion 14 is formed by cutting three sides of a quadrangle and bending the quadrangle diagonally downward on the remaining one side. The cut-down portion 14 is bent at the protruding tip end side of the horizontal plate portion 11 and inclined at the vertical plate portion 12 side. Since the lowered end of the cut-down portion 14 comes into contact with the tip of the flange 3b, the locking member 10 is hooked on the flange 3b. The cut-down portions 14 are formed at two locations with a gap in the width direction of the horizontal plate portion 11 (longitudinal direction of the field edge receiver 3).

  A cut and raised portion 15 is formed on the base end side of the horizontal plate portion 11 on the vertical plate portion 12 side. The cut and raised portion 15 cuts and raises a part of the plate and latches the connecting plate portion 32 described later of the fixing member 30. The cut-and-raised portion 15 is formed by cutting three sides of a quadrangle and bending the quadrangle diagonally upward at the remaining one side. The cut-and-raised part 15 is bent up at the protruding front end side of the horizontal plate part 11 and is inclined up at the vertical plate part 12 side. The locking member 10 is latched to the fixing member 30 by the end of the raised part 15 coming into contact with the surface of the connecting plate part 32. The cut-and-raised part 15 is formed at one place in the intermediate part in the width direction of the horizontal plate part 11.

  The vertical plate portion 12 hangs down from the end portion of the horizontal plate portion 11 and abuts on the web 3 a (side surface) of the field edge receiver 3. The width dimension of the vertical plate portion 12 is smaller than the inner dimension between the pair of lip portions 2 c, 2 c of the field edge 2 and can be inserted inside the field edge 2. The width dimension of the vertical plate portion 12 is equivalent to the width dimension of the horizontal plate portion 11. The height dimension of the vertical plate portion 12 is larger than the height dimension of the web 3 a, and the lower end portion of the vertical plate portion 12 enters the inside of the field edge 2.

  The locking portion 13 is formed to extend to both sides in the width direction continuously to the lower end portion of the vertical plate portion 12. The width dimension of the latching | locking part 13 is larger than the inner dimension between lip | rip parts 2c and 2c, and is smaller than the inner dimension between side part 2b, 2b. That is, the locking part 13 locks the lip parts 2c, 2c from below. When the locking portion 13 is inserted into the field edge 2, the locking member 10 is lowered into the field edge 2 in a state where the locking portion 13 is inclined from a plane whose normal is the longitudinal direction of the field edge 2. .

  As shown in FIGS. 1 to 3, the fixing member 30 is fixed to the web 3 a (side surface) of the field edge receiver 3 and its lower end is fixed to the side surface part 2 b of the field edge 2. The fixing member 30 is fixed to the field edge receiver 3 and the field edge 2 via a fastening member such as a screw V or a bolt. As shown in FIGS. 6 and 7, the fixing member 30 is formed by appropriately bending a single metal plate (for example, an aluminum alloy plate). The fixing member 30 includes a fixing plate portion 31 and a connecting plate portion 32.

  The fixed plate portion 31 is a portion that fixes and supports the field edge 2. A pair of fixing plate portions 31 are provided and fixed to the side surface portion 2 b of the field edge 2. The fixed plate portion 31 is made of a flat plate-like member, and includes a field edge fixing portion 33 that contacts the side surface portion 2b of the field edge 2 and an upper extending portion 34 in which the field edge fixing portion 33 extends upward. . The upward extending portion 34 extends to the side of the field edge receiver 3. The inner dimension between the fixed plate portions 31 and 31 is equal to the width dimension of the field edge 2. The upper extending part 34 is arranged so as to sandwich the web 3 a of the field edge receiver 3 with the upper part of the horizontal plate part 11 of the locking member 10. The upward extending portion 34, the horizontal plate portion 11, and the web 3a are fixed through fastening members such as screws V or bolts.

  At one end in the width direction of the fixed plate portion 31, a reinforcing rib 35 is formed that extends orthogonally to the fixed plate portion 31 and extends outward. The reinforcing rib 35 extends in the vertical direction from the field edge fixing portion 33 to the upward extending portion 34. The other end portion of the field edge fixing portion 33 (the end portion opposite to the reinforcing rib 35) protrudes in the lateral direction. The field edge fixing portion 33 is formed with two screw holes 36 for fixing the side surface portion 2b. The two screw holes 36 are formed at different heights. The position of the screw hole 36 is appropriately determined according to the inclination angle of the fixed field edge 2. The screw hole 36 is formed at a position sandwiching a virtual plane including the connecting plate portion 32. Note that the two screw holes 36 may be formed at the same height.

  The connecting plate portion 32 is a portion that connects the fixed plate portions 31, 31 and is fixed to the field receiver 3. The connecting plate portion 32 and the fixed plate portions 31, 31 have a U shape in plan view. The height dimension of the connecting plate portion 32 is larger than the height dimension of the field edge receiver 3. The connecting plate portion 32 is continuously connected to the end portions on the same side of the upper extending portions 34, 34 of the pair of fixed plate portions 31, 31 respectively. The connecting plate portion 32 abuts on the web 3 a of the field receiver 3. The connecting plate portion 32 is formed with a screw hole 36 for fixing the web 3a.

  The upper extending portions 34 and 34 of the fixed plate portions 31 and 31 and the connecting plate portion 32 are formed with notches 37 and 38 for receiving the flange 3b of the field receiver 3 at two locations in the vertical direction. The upper cutout portion 37 is formed along the upward extending portion 34 and the connecting plate portion 32. The side cutout portion 37 a formed in the upper extension portion 34 is cut out from the connecting plate portion 32 side and extends orthogonally to the connecting plate portion 32. The entrance width of the side cutout portion 37a and the connection plate cutout portion 37b formed in the connection plate portion 32 have a large opening width. The flange 3b of the field receiver 3 is inserted through the side cutout portion 37a. Since the opening part of the entrance part of the side notch part 37a is large, it is easy to insert the flange 3b. Further, the flange 3b of the field edge receiver 3 and the horizontal plate portion 11 of the locking member 10 are inserted into the connecting plate notch portion 37b having a large opening width.

  The lower cutout portion 38 is formed along the upper extending portion 34 and the connecting plate portion 32. The connecting plate notch portion 38b formed in the connecting plate portion 32 has no connecting plate portion 32 below and is open at the bottom. The side cutouts 38 a formed in the upper extension 34 extend perpendicular to the connecting plate 32. The side notch 38 a has a field edge fixing part 33 positioned below, and the lower part is partitioned by the field edge fixing part 33. The opening width of the entrance portion of the side notch 38a is large. Since the opening part of the entrance part of the side notch part 38a has a large opening width, it is easy to insert the flange 3b.

  When the field edge 2 and the field edge receiver 3 are connected using the connection fitting 1 having the above-described configuration, first, the locking portion 13 of the locking member 10 is inserted into the field edge 2 and the lip portions 2c, 2c are inserted. The locking member 10 is mounted from the web 3a side of the field edge receiver 3 in a state in which is locked from below. At this time, the field edge 2 is inclined by being engaged with the engagement members 10 having different height positions arranged at intervals in the longitudinal direction of the field edge 2. On the other hand, the lateral plate portion 11 of the locking member 10 is brought into contact with the flange 3 b of the field edge receiver 3. Then, the lower end portion of the cut-down portion 14 comes into contact with the tip end portion of the flange 3b, so that the locking member 10 is hooked on the flange 3b. As a result, the field edge 2 is locked and temporarily fixed to the locking member 10, and the locking member 10 is temporarily fixed to the field edge receiver 3.

  Thereafter, the fixing member 30 is attached to the field receiver 3. As shown in FIG. 2, the fixing member 30 is mounted from the open side of the field receiver 3 having a U-shaped cross section. Specifically, the connecting plate 32 is brought into contact with the inner surface of the web 3a while the flanges 3b and 3b are inserted through the notches 37 and 38. At this time, the horizontal plate portion 11 of the locking member 10 is inserted from the upper cutout portion 37 together with the upper flange 3b. Then, the connecting plate portion 32 gets over the cut and raised portion 15, and the raised end portion of the cut and raised portion 15 comes into contact with the surface of the connecting plate portion 32, so that the locking member 10 is hooked on the fixing member 30. It can be stopped. Accordingly, the locking member 10 and the fixing member 30 are temporarily fixed, and the field edge receiver 3, the locking member 10, and the fixing member 30 are temporarily fixed. At this time, the field edge receiver 3 is sandwiched between the locking member 10 and the fixing member 30. The field edge 2 is located between the field edge fixing parts 33 and 33 of the fixing plate parts 31 and 31 of the fixing member 30.

  Next, the screw V is held from the screw hole 36 of the connecting plate portion 32 of the fixing member 30, and the fixing member 30, the field edge receiver 3, and the locking member 10 are permanently fixed. Furthermore, the fixing member 30 and the field edge 2 are finally fixed by screwing the screw V from the screw hole 36 of the fixing plate portion 31 of the fixing member 30.

  A ceiling structure 50 configured by connecting the field edge 2 and the field edge receiver 3 using the connection fitting 1 is shown in FIG. In the ceiling structure 50, the field edge receiver 3 is formed in a curved shape that is linear in a side view and has an arc shape in a plan view. The field edge receiver 3 is formed by bending a straight channel material by bending. Since the field edge receiver 3 is curved in only one direction, it can be easily bent. The field edge 2 is connected to the field edge receiver 3 in an inclined state. The configuration of the connecting fitting 1 and the connecting procedure are the same as described above.

  According to the ceiling structure 50 using the field receiver 3 and the connection fitting 1 as described above, a ceiling surface having a conical curved surface shape can be formed, so that a ceiling having an excellent aesthetic appearance of a complicated curved surface is constructed. be able to. Further, since the field edge receiver 3 is curved only in one direction, it can be easily bent. In addition, the shape of the field edge receiver 3 is not limited to the said structure. For example, if a field receiver that curves only in a side view is used, a ceiling surface having a cylindrical curved surface shape can be formed.

  According to the connection fitting 1 according to the present embodiment, the field edge 2 can be fixed by the fixing member 30 via the screw V after being locked in a state where the field edge 2 is inclined by the locking member 10. That is, the field edge 2 is temporarily fixed by the locking member 10 and then fixed by the fixing member 30. Therefore, since the position adjustment of the field edge 2 can be performed in a temporarily fixed state, the position adjustment can be performed accurately and easily in a stable state.

  Further, since the fixing member 30 and the field edge 2 and the fixing member 30 and the field edge receiver 3 are fixed using the screws V, the field edge 2 is firmly fixed to the field edge receiver 3. Therefore, it is possible to fix the field edge 2 to the field edge receiver 3 while securing the earthquake resistance. Further, since the two screw holes 36 of the field edge fixing part 33 of the fixing plate part 31 are formed at positions sandwiching a virtual plane including the connecting plate part 32, the web 3a of the field edge receiver 3 is sandwiched between them. In addition, since the support point of the field edge 2 is arranged, the load of the field edge 2 can be supported in a stable state without being biased.

  Further, since the upper extending portion 34 and the connecting plate portion 32 of the fixing member 30 are formed with notches 37 and 38 for receiving the flange 3b of the field receiver 3, the flange 3b is engaged with the fixing member 30. In addition, the web 3 a of the field edge receiver 3 and the connecting plate portion 32 of the fixing member 30 can be brought into contact with each other. Thereby, the field edge receiver 3 and the fixing member 30 can be firmly and easily fixed with the screw V. Further, the fixing member 30 can be prevented from rotating with respect to the field receiver 3.

  Further, since the locking member 10 includes the horizontal plate portion 11, the vertical plate portion 12, and the locking portion 13, the field edge 2 can be locked to the locking member 10 and the locking member 10 is connected to the field edge. It can be locked to the receiver 3. Therefore, the field edge receiver 3 can be temporarily fixed easily. Moreover, since the latching | locking part 13 is plate shape and latches the lip | rip part 2c of the field edge 2 from the lower side, it can be temporarily fixed in the state which inclined the field edge 2. As shown in FIG.

  Since the cut-down portion 14 is formed in the horizontal plate portion 11, the locking member 10 can be easily hooked on the flange 3 b of the field edge receiver 3. Furthermore, since the cut-and-raised portion 15 is formed in the horizontal plate portion 11, the fixing member 30 can be easily hooked on the locking member 10. Thereby, the fixing member 30, the locking member 10, and the field edge receiver 3 are temporarily fixed integrally.

  Finally, the connecting plate portion 32 of the fixing member 30, the web 3 a of the field edge receiver 3, and the vertical plate portion 12 of the locking member 10 are firmly fixed by screws V, and the fixing plate portion 31 of the fixing member 30 is fixed. Seismic resistance can be obtained by firmly fixing the side edge 2b of the edge 2 with the screw V. Further, the two screw holes 36, 36 of the field edge fixing part 33 of the fixing plate part 31 are formed at positions sandwiching a virtual plane including the connecting plate part 32, so that the virtual including the web 3 a of the field receiver 3 is provided. The support points of the field edge 2 are arranged so as to sandwich the plane. Therefore, the load of the field edge 2 can be transmitted to the field edge receiver 3 in a stable state without the load of the field edge 2 being biased.

  Furthermore, since the fixing plate portion 39 projects in the lateral direction and the screw holes 36 are formed at two locations, the field edge 2 can be fixed in an inclined state. Since the two screw holes 36 are formed at different heights, the inclination angle of the field edge 2 can be increased.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to the said embodiment, A design change, such as a material, a shape, and a magnitude | size, is suitably possible in the range which does not deviate from the meaning of this invention. is there. For example, in the above-described embodiment, each member is arranged so that the field edge receiver 3 is sandwiched between the locking member 10 and the fixing member 30, but the present invention is not limited to this. For example, the fixing member 30 may be sandwiched between the locking member 10 and the field receiver 3, or the locking member 10 may be sandwiched between the fixing member 30 and the field receiver 3.

  Moreover, in the said embodiment, although the latching member 10 and the fixing member 30 are formed by bending a metal board | plate material, it is not limited to this. The locking member 10 and the fixing member 30 may be formed by casting or forging.

1 Connecting bracket 2 Field edge 2b Side surface (side surface of edge)
2c Lip part 3 Field edge receiver 3a Web (side edge of field edge receiver)
DESCRIPTION OF SYMBOLS 10 Locking member 11 Horizontal plate part 12 Vertical plate part 13 Locking plate part 14 Cut-down part 15 Cut-and-raised part 16 Wide part 30 Fixing member 31 Fixing plate part 32 Connection board part 37 Notch part 38 Notch part 50 Ceiling structure V screw

Claims (6)

In a connecting bracket for connecting a field edge made of a grooved stud material having a lip part and a field edge support for supporting the field edge,
A locking member that is fixed to the field edge receiver and has a lower end portion that locks the lip portion so that the field edge can be inclined, and a lower end portion that is fixed to a side surface of the field edge receiver and that has the lower edge portion of the field edge And a fixing member fixed to the side surface. The locking member and the fixing member are arranged so as to sandwich the field receiver,
The connecting bracket according to claim 1, wherein the locking member, the field edge receiver, and the fixing member are fixed by a fastening member. The field receiver is made of a channel-shaped channel material having a U-shaped cross section that opens to the side,
The fixing member is fixed to the side surface of the field edge and extends to the position of the field edge receiver, and connects the pair of fixing plate parts to each other and the side surface of the field edge receiver. And a connecting plate part fixed to
The notch part which accommodates the flange of the said field receiver is formed in the upper part of the said fixed board part, and the said connection board part. The connection metal fitting of Claim 1 or Claim 2 characterized by the above-mentioned. The locking member includes a horizontal plate portion that comes into contact with an upper surface of the field receiver, a vertical plate portion that contacts a side surface of the field receiver, and a locking portion that is continuous with a lower end portion of the vertical plate portion. And
The connection according to claim 3, wherein the horizontal plate portion is formed with a cut-down portion that inclines a part of the plate obliquely downward to hook the end portion of the flange of the field edge receiver. Hardware. The locking member includes a horizontal plate portion that comes into contact with an upper surface of the field receiver, a vertical plate portion that contacts a side surface of the field receiver, and a locking portion that is continuous with a lower end portion of the vertical plate portion. And
The notch portion formed in the connecting plate portion is configured so that the horizontal plate portion is inserted therethrough,
The connection according to claim 3, wherein the horizontal plate portion is formed with a cut-and-raised portion that tilts a part of the plate obliquely upward to hook the connection plate portion of the fixing member. Hardware. A ceiling structure in which a field edge and a field edge receiver are connected using the connection fitting according to any one of claims 1 to 5,
The field edge receiver is formed in a curved shape that is linear in a side view and has an arc shape in a plan view,
The ceiling structure is characterized in that the field edge is connected to the field edge receiver in an inclined state.

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