JP4164558B2 - Ceiling structure and construction method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling structure and a construction method thereof. More particularly, the present invention relates to a ceiling structure of a building in which mounting of a ceiling mounting fixture such as a lighting fixture is simplified and easy to remove, and a construction method thereof.
[0002]
[Prior art]
Conventionally, a ceiling of a building has a structure in which a ceiling panel is screwed to a ceiling panel mounting member assembled to a ceiling beam by welding or screwing at a construction site. Moreover, the lighting fixture etc. are attached to the ceiling panel constructed in this way by screwing.
[0003]
Thus, since the conventional ceiling has many welding operations and screwing operations at the construction site, the construction is not only complicated, but also the construction period is prolonged. In addition, the ceiling panel mounting member is welded or screwed to the ceiling beam, and the ceiling panel is screwed to the ceiling panel mounting member, and the lighting fixtures are also screwed to the ceiling panel. However, it is difficult to reuse the dismantled ceiling panel.
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and it is possible to simplify the construction of a ceiling mounting device such as a lighting device, and to easily remove and dismantle a ceiling panel and the like. The purpose is to provide a construction method.
[0005]
[Means for Solving the Problems]
The ceiling structure of the present invention includes a ceiling panel pre-cut into a required shape, a receiving member disposed in a predetermined arrangement that supports a peripheral portion of the ceiling panel, and a holding portion that holds the receiving member. And a connecting beam connecting the gripping part and the locking part, a support beam for locking the locking part of the lifting tool by the locking part, and a lighting fixture mounted on the receiving member Holding means for holding ceiling mounting fixtures such as ,
The receiving member includes a receiving member main body in which a horizontal member and a main vertical member having a predetermined length are arranged in an inverted T shape, and left and right at a lower portion of the upper end portion while leaving the upper end portion of the main vertical member. A bowl-shaped member having a drop surface parallel to the main vertical member disposed symmetrically,
The gripping portion includes a movable member having a gripping claw at the lower end and a non-movable member having a gripping claw at the lower end,
The upper side portions of the movable member are side surfaces directed toward the upper inner side of the non-movable member,
In the lower part of the both side surfaces, there is a notch capable of accommodating the upper end portion of the main vertical member in a state where the gripping claws grip the hook-shaped member .
[0006]
In the ceiling structure of the present invention, the predetermined arrangement of the receiving members is arranged on the receiving members arranged in a predetermined direction, and the end surfaces thereof are arranged orthogonal to the side surfaces of the receiving members arranged in the predetermined direction. The receiving member is fixed to the side surface of the receiving member having one piece disposed in the predetermined direction, and the other piece is orthogonal to the end side surface of the receiving member disposed in the predetermined direction. This is done by connecting with a fixed connecting member.
[0007]
Further, in the ceiling structure of the present invention, the holding means includes, for example, a first holding member mounted from one side edge side of the horizontal member of the receiving member having a bolt protruding downward, and the first It has a 2nd holding member with which the horizontal member of the receiving member is mounted | worn from the other side edge part side of the receiving member to which the 1 holding member is mounted | worn.
[0008]
And in the preferable form of the ceiling structure of this invention, the ceiling panel pressing member which is latched by the said receiving member and presses a ceiling panel is provided.
[0009]
On the other hand, the construction method of the ceiling structure of the present invention includes a ceiling panel precut into a required shape, a receiving member that supports a peripheral portion of the ceiling panel, a gripping part that holds the receiving member, a locking part, and the gripping And a connecting member for connecting the locking part, a support beam for locking the locking part of the lifting tool by the locking part, and a holding means for holding a ceiling mounting tool such as a lighting fixture. It is a construction method of the ceiling structure that uses each required number,
The receiving member includes a receiving member main body in which a horizontal member and a main vertical member having a predetermined length are arranged in an inverted T shape, and a lower portion of the main vertical member with the upper end portion of the main vertical member remaining. A bowl-shaped member having a drop surface parallel to the main vertical member disposed symmetrically,
The gripping portion includes a movable member having a gripping claw at the lower end and a non-movable member having a gripping claw at the lower end,
The upper side portions of the movable member are side surfaces directed toward the upper inner side of the non-movable member,
In the lower part of the both side surfaces, with the gripping claw gripping the bowl-shaped member, it has a notch that can accommodate the upper end of the front main vertical member,
A procedure for disposing the support beam at a predetermined position;
A procedure of disposing the receiving member at a predetermined position;
A procedure of holding the receiving member by the holding portion of the lifting tool while lowering the holding portion from above the main vertical member, and locking the locking portion to the locking portion of the support beam;
Attaching the holding means to the receiving member;
A procedure for placing a ceiling panel on the receiving member;
And a procedure for causing the holding means to hold a ceiling fixture such as a lighting fixture. In the construction method of the ceiling structure of the present invention, it is preferable that a procedure for pressing the ceiling panel by the ceiling panel pressing member is added.
[0010]
[Action]
Since the ceiling structure of the present invention is configured as described above, there is no welding work at the construction site, and there are almost no screws or screwing work at the construction site. Further, a ceiling mounting device such as a lighting device can be mounted on the ceiling simply by being held by the holding means. Therefore, the construction is remarkably simplified and the construction period is remarkably shortened.
[0011]
On the other hand, the removal of the ceiling mounting device such as the lighting device in the dismantling operation is performed only by releasing the holding by the holding means. In addition, since there are no on-site welding points and almost no screws or screwing points, the ceiling itself can be easily disassembled, and the members can be easily reused after dismantling.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on an embodiment with reference to the accompanying drawings, but the present invention is not limited to the embodiment.
[0013]
A ceiling structure according to an embodiment of the present invention is shown in a perspective view of a main part in FIG. 1 and in a longitudinal sectional view in FIG. The ceiling structure K includes a ceiling panel 10, a receiving member 20 that receives the peripheral edge 11 of the ceiling panel 10, a hanging tool 30 that suspends the receiving member 20, a ceiling panel press 40 that holds the ceiling panel 10, The supporting beam 50 that supports the hanger 30 and the holding means 60 that holds the luminaire mounted on the receiving member 20 are main components. Here, the ceiling panel 10 has a required shape, for example, a shape precut into a square or a rectangle.
[0014]
The receiving member 20 is made of hard synthetic resin, aluminum alloy, or the like. As shown in FIG. 3, the receiving member main body 21 in which the horizontal member 22 and the main vertical member 23 are arranged in an inverted T shape, and the horizontal member 22. A stopper (small vertical member) 24 formed vertically at a predetermined distance from the main vertical member 23, and hook-like members 25, 25 arranged symmetrically at appropriate positions above the main vertical member 23 and exhibiting a wedge shape. For example, it is manufactured by extrusion molding or pultrusion molding. As shown in FIG. 3, the tip of the flange-shaped member 25 is a vertical drop surface 25a. And this receiving member 20 is arrange | positioned at the grid | lattice form corresponding to the height position of the ceiling panel 10 (refer FIG. 1). Further, a positioning hole 23b that engages with a positioning projection provided in a positioning portion of a connecting member to be described later is provided on a side surface 23a of the main vertical member 23 of the receiving member 20.
[0015]
The grid-like arrangement of the receiving member 20 is arranged in the vertical direction (or horizontal direction) on the side surface 23a of the main vertical member 23 of the receiving member 20A arranged in the horizontal direction (or vertical direction). This is done by connecting the ends of the receiving member 20B. As shown in FIGS. 3 and 4, this connection is made by using a connecting member 70 formed by forming a thin plate in an L shape. As shown in FIG. 3, the connecting member 70 includes a positioning portion 72 formed at the upper center of the piece 71 and fixing portions 73 formed on both sides of the positioning portion 72. The positioning portion 72 has a positioning projection 74 that is disposed at a predetermined position on the surface that is in contact with the main vertical member 23 and fits into the positioning hole 23b. The fixing portion 73 has an arc piece 75 that is bent and formed with appropriate elasticity on the side opposite to the surface that contacts the main vertical member 23. Further, as shown in FIG. 3, the connecting portion 70a between the pieces 71 and 71 of the joining member is provided with notches 76 and 77 over a predetermined range at the lower and upper portions thereof, and the small vertical member 24 of the receiving member 20 and Interference with the drop surface 25a of the bowl-shaped member 25 is avoided.
[0016]
Thus, the connection members 70 and 20 are connected to each other by connecting one piece 71 of the connection member 70 to the main vertical member 23 of the receiving member 20A in the horizontal direction (or the vertical direction), the hook-shaped member 25, and the like. It is fitted between the small vertical member 24, and the positioning projection 74 is fitted into the positioning hole 23b provided in the side surface 23a of the main vertical member 23, and then the other piece 71 is connected to the side surface of the member main body 21. Is fitted between the main vertical member 23 and the flange-like member 25 and the small vertical member 24 at the end of the vertical (or horizontal) receiving member 20B, and the positioning projection 74 is disposed on the side surface of the main vertical member 23. This is done by fitting into a positioning hole 23b provided in 23a. In this case, since the piece 71 of the connecting member 70 is provided with a fixing portion 73 having an arc piece 75 that is bent and formed with appropriate elasticity on the side opposite to the abutting surface. by the arc piece 75 is sandwiched between the main vertical member 23 and Hisashijo member 25, a force that urges the piece 71 to the fixing unit 7 3 are provided in the main vertical member 23 occurs. Therefore, the positioning protrusion 74 does not come off from the positioning hole 23b. Further, since the positioning projection 74 does not come off from the positioning hole 23b, the connection between the receiving members 20 and 20 will not come off.
[0017]
In addition, as shown in FIG. 5, the connection member 70 is used for the surrounding edge 2 formed in the same edge as the one side of the receiving member 20 arrange | positioned at the wall surface side end of the receiving member 20 as shown in FIG. Connected. In this case, positioning and fixing of the piece 71 positioned on the peripheral edge 2 of the connecting member 70 is performed by screw fixing as shown in the figure.
[0018]
As shown in FIGS. 6 and 7, the hanger 30 includes a rod 31 having screw portions 31 a and 31 b at least at both ends, a gripping portion 32 screwed to one end portion of the rod 31, and the other end portion. And a locking portion 33 that is screwed to the head.
[0019]
As shown in FIG. 6, the grip portion 32 includes a movable member 34 having a grip claw 34 a at the lower end and a non-movable member 35 having a grip claw 35 a at the lower end. Specifically, the upper end 34b of the flat plate-like movable member 34 is formed by bending the lower end portion of the gripping claw 34a, and the holding claw 35a formed by bending the lower end portion of the flat plate-like non-movable member 35. And a coil spring 37 is mounted on the base end side 36a with a gap that allows the upper end of the main vertical member 23 of the receiving member 20 to be inserted between the opposing surfaces of both gripping claws 34a and 35a. The movable member 34 is bolted to the upper end portion 35 b of the non-movable member 35 by a bolt 36 in a state parallel to the non-movable member 35. The through hole 34c of the bolt 36 of the movable member 34 is adjusted to a size that allows the movable member 34 to be expanded later.
[0020]
Further, as shown in FIG. 6, both upper side portions of the movable member 34 are side surfaces 34d facing the upper inner side of the non-movable member 35, and gripping claws 34a and 34b are received below the both side surfaces 34d. A notch 34e is provided so that the upper end portion 23c of the main vertical portion 23 of the receiving member 20 can be accommodated in a state where the hook-like member 25 of the member 20 is gripped. Further, both lower side portions of the movable member 34 are open side surfaces 34f as shown in FIG. 6, whereby a portion located between the movable member 34 and the non-movable member 35 of the bowl-shaped member 25 of the receiving member 20 is The movable member 34 and the non-movable member 35 can be accommodated.
[0021]
Since the gripping portion 32 is configured as described above, the gripping portion 32 descends from above the main vertical member 23 of the receiving member 20, and the upper end of the main vertical member 23 of the receiving member 20 is not in contact with the gripping claws 34 a of the movable member 34. When the gripping claws 35a and 35a are inserted between the gripping claws 35a of the movable member 35 and then the gripping claws 34a and 35a come into contact with the hook-like members 25 and 25, the hook-like members 25 and 25 have a wedge shape as described above. Therefore, the movable member 34 is expanded by the hook-shaped member 25. When the gripping portion 32 is still lowered in this state, the movable member 34 is lowered along the hook-shaped member 25 while being still pushed and expanded by the hook-shaped member 25. In response to the lowering of the movable member 34, the non-movable member 35 is also lowered along the bowl-shaped member 25. When the movable member 34 continues to be pushed and spread by the hook-shaped member 25 and descends along the hook-shaped member 25 and passes through the lower end of the dropping surface 25a, the movable member 34 is elastically restored by the restoring force of the coil spring 37. Thereby, the lower end of the drop surface 25a of the bowl-shaped member 25 is placed on the gripping claws 34a of the movable member 34 and the gripping claws 35a of the non-movable member 35, and the upper end portion of the main vertical member 23 is on the upper side surface of the movable member 34. The hook-like member 25 inserted into the notch 34e provided and including the dropping surface 25a is accommodated between the lower part of the movable member 34 and the lower part of the non-movable member 35. That is, the receiving member 20 is gripped by the grip portion 32.
[0022]
Further, as shown in FIG. 6, a U-shaped connecting member 38 is integrally provided at the upper end of the non-movable member 35 so that the lower piece 38a covers the upper end of the movable member 34. The threaded portion 31a at the lower end of the rod 31 is inserted at a position substantially corresponding to the main vertical member 23 of the receiving member 20 of the upper piece 38b, and is arranged vertically on the threaded portion 31a below the rod 31 with the upper piece 38b interposed therebetween. A double nut is fastened by a pair of nuts 38c, 38c.
[0023]
On the other hand, as shown in FIG. 6, the locking portion 33 is configured by forming a vertical member 33 a and a horizontal member 33 b into an L shape. A hook 33c that is locked to a lip (locking portion) 51 of a lip groove beam (support beam) 50 provided at a predetermined position is formed integrally with the upper portion of the vertical member 33a. An internal thread 33d is formed in a substantially central portion. The hook 33c has a wide guide portion 33g formed by bending a lower portion 33f outward (see FIG. 6). And the upper end part of the rod 31 is screwed by the internal thread 33d formed in this horizontal member 33b.
[0024]
Therefore, the receiving member 20 is hung by the hanger 30 having such a configuration as follows. First, the upper portion of the main vertical member 23 of the receiving member 20 is grasped by the grasping portion 32 in a state where the length of the rod 31 can be adjusted by loosening the nuts 38c, 38c screwed to the screw portion 31a at the lower end portion. Let Next, the locking portion 33 screwed to the screw portion 31 b at the upper end of the rod 31 is locked to the lip 61 of the lip groove steel 50. After that, the nuts 38c, 38c screwed to the threaded portion 31a of the lower end portion of the rod 31 are tightened to fix the rod 31 to the upper piece 38b of the connecting member 38 by double nut fastening. Thereby, the suspension of the receiving member 20 by the hanging tool 30 is completed.
[0025]
As shown in FIG. 8, the ceiling panel presser 40 holds the gripping portion 41 that grips the main vertical member 23 of the receiving member 20 and the upper surface of the peripheral edge 11 of the ceiling panel 10 (the surface opposite to the surface on the indoor side). It consists of a letter-shaped pressing part 42.
[0026]
The gripping portion 41 includes a movable member 43 and a non-movable member 44 that are configured in substantially the same manner as the gripping portion 32 of the hanging tool 30 described above, but can easily grip the upper end of the main vertical member 23 of the receiving member 20. Therefore, the movable member 43 is provided with an operation piece 43b in which the central portion of the gripping claw 43a is bent downward to be flush with the flat plate-like movable member 43. Further, the non-movable member 44 is provided with a connecting piece 44b in which the central portion of the gripping claw 44a is bent downward to be flush with the flat plate-like non-movable member 44. The upper end of the vertical member 45 of the L-shaped pressing portion 42 is integrally connected to the lower end of the connection piece 44b with the horizontal member 46 facing the opposite side of the main vertical member 23 of the receiving member 20. ing.
[0027]
As shown in FIG. 9, the holding means 60 includes a first holding member 61 formed by bending a flat plate locked to one side edge of the horizontal member 22 of the receiving member 20, and the horizontal member of the receiving member 20. A second holding member 62 formed by bending a flat plate that is locked to the other side edge of 22, a bolt 63 having a flat head 63 a, and a flanged nut 64 that is screwed to the bolt 63. It is supposed to be prepared.
[0028]
As shown in FIG. 10, the first holding member 61 includes a first holding member main body 61a, a locking portion 61b formed by bending one end of the first holding member main body 61a into a horizontal L shape, and the other end. And an upper step 61d of a predetermined width formed by providing a predetermined step 61c in the part. A bolt hole 61e for inserting the bolt 63 is formed in the central portion of the first holding member main body 61a, and a rectangular positioning is provided in the vicinity where the locking portions 61b on both side edges are raised. Holes 61f and 61f are formed. The step 61c is adjusted to be flush with the head top surface 63b of the bolt 63 inserted through the bolt hole 61e, and the width of the upper step 61d is the head of the bolt 63 inserted through the bolt hole 61e. It is adjusted so as not to interfere with the portion 63a. The distance between the upper upper surface 61g and the locking piece inner surface 61h that is horizontal to the locking portion 61b is such that the locking portion 61b of the first holding member 61 is one side edge of the horizontal member 22 of the receiving member 20. The upper upper surface 61g is adjusted to be in contact with the lower surface 22a of the horizontal member 22, and the locking piece inner surface 61h is adjusted to be in contact with the upper surface 22b of the horizontal member 22. That is, the first holding member 61 is clipped to the horizontal member 22 by the locking piece 61i and the upper stage 61d.
[0029]
The second holding member 62 has a second holding member main body 62a and an engaging portion 62b formed by bending one end of the second holding member main body 62a into a horizontal L shape. In the center of the second holding member main body 62a, as shown in FIG. 11, a long hole 62c having a predetermined length for inserting the bolt 63 is formed perpendicular to the locking portion 62b. Notches 62d and 62d having a predetermined width are formed on both sides, and the ends of both sides 62e and 62e are bent upward and fitted into positioning holes 61f and 61f formed in the first holding member body 61a. Thus, positioning pieces 62f and 62f for positioning the second holding member 62 are formed.
[0030]
The bolt 63 is inserted into the bolt hole 61e of the first holding member main body 61a, and the head portion 63b is fixed to the first holding member main body 61a with an adhesive, for example.
[0031]
And the mounting | wearing to the horizontal member 22 of the receiving member 20 of the holding means 60 made into this structure is made as follows.
[0032]
(1) Clip the first holding member 61 to one side edge of the horizontal member 22 of the receiving member 20.
[0033]
(2) The second holding member 62 is positioned on the other side end side of the horizontal member 22 of the receiving member 20 with the locking portion 62b, and the bolt 63 protruding downward from the first holding member 61 is second held. The member 62 is inserted through the distal end side of the long hole 62c.
[0034]
(3) The second holding member 62 is raised and brought into contact with the first holding member 61.
[0035]
(4) The locking portion 62b of the second holding member 62 is moved horizontally, and the positioning pieces 62f and 62f are fitted into the positioning holes 61f and 61f formed in the first holding member main body 61a, and the other side of the horizontal member 22 is inserted. Lock to the edge. That is, the second holding member 62 is clipped to the other side edge of the horizontal member 22. Therefore, the height of the locking piece 62g of the locking part 62b of the second holding member 62 is received by the second holding member 62 in a state where the first holding member 61 is clipped to the horizontal member 22 of the receiving member 20. It is adjusted so that it can clip to the horizontal member 22 of the member 20.
[0036]
Next, construction of the ceiling structure K having such a configuration will be described.
[0037]
(1) A lip groove steel (support beam) 50 is disposed at a predetermined position.
[0038]
(2) The suspension member 30 supports the receiving member 20 while arranging the receiving member 20 in a predetermined arrangement corresponding to the position of the ceiling panel 10. That is, the locking portion 33 of the lifting tool 30 that holds the receiving member 20 by the gripping portion 32 is locked to the lip 51 of the lip groove steel 50.
[0039]
(3) Place the peripheral edge 11 of the ceiling panel 10 on the horizontal member 22 of the member 20.
[0040]
(4) The ceiling panel presser 40 is disposed at an appropriate position of the receiving member 20, and the upper surface of the peripheral edge 11 of the ceiling panel 10 is pressed by the presser part 42.
[0041]
(5) The bolt 63 of the holding means 60 attached to the horizontal member 22 is inserted into the bolt hole 81 of the lighting fixture 80.
[0042]
(6) A nut 64 with a flange is screwed onto the tip of the bolt 63 protruding downward from the bolt hole 81 of the lighting fixture 80 to fix the lighting fixture 80 to the receiving member 20 (see FIG. 9). That is, the lighting device 80 is held by the holding means 60. In this case, the nut screwed to the bolt 63 may be a double nut.
[0043]
As described above, according to this embodiment, the number of spot welding sites is zero, and there are almost no screws or screw fastening points in the field construction. Therefore, the operation is remarkably simplified and the construction period is remarkably shortened. In addition, since there are no on-site welding points and there are almost no screws or screw-fastening points in the field construction, the dismantling operation is remarkably simplified and the reuse of the members after disassembly is facilitated.
[0044]
As described above, the present invention has been described based on the embodiment, but the present invention is not limited to the embodiment, and various modifications can be made. For example, in the embodiment, the fixture attached to the ceiling is a lighting fixture. However, the fixture is not limited to the lighting fixture, and can be various fixtures, for example, a decorative article hung from the ceiling. Good. Further, in this embodiment, the support beam is a lip groove type steel, but the support beam is not limited to the lip groove type steel, and can be various types of steel and steel pipes, for example, a hanging tool at the lower part. It can also be set as the steel pipe with which the locking member with a locking part was equipped.
[0045]
【The invention's effect】
As described above in detail, according to the present invention, the following excellent effects can be obtained.
[0046]
(1) The ceiling can be constructed on site without any welding work.
[0047]
(2) Since the processing at the construction site can be made zero, the construction quality is improved.
[0048]
(3) Since there is no welding work at the construction site and there are almost no screws or screwing points at the construction site, the construction is simplified and the construction period is remarkably shortened.
[0049]
(4) Since there is no welding work at the construction site, and there are almost no screws or screw fastening points at the construction site, the dismantling work is simplified and the reuse of the members after dismantling is facilitated.
[0050]
(5) Since the ceiling mounting device such as a lighting device can be mounted on the ceiling only by holding the mounting device provided on the receiving member, it is easy to mount the ceiling mounting device such as the lighting device on the ceiling. At the same time, it can be easily removed.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part of a ceiling structure according to an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the ceiling structure.
FIG. 3 is a perspective view of a receiving member used in the ceiling structure, and shows a connection part between the receiving members separately.
FIG. 4 is a perspective view of a receiving member used in the ceiling structure, and shows a connection portion between the receiving members.
FIG. 5 is a detailed view of a connection portion with a wall of a receiving member used in the ceiling structure.
FIG. 6 is a front view of a hanging tool used in the ceiling structure.
FIG. 7 is a side view of a hanging tool used in the ceiling structure.
FIG. 8 is a front view of a ceiling panel pressing member used in the ceiling structure.
FIG. 9 is a cross-sectional view of holding means holding a lighting fixture.
FIGS. 10A and 10B are views showing a first holding member of the holding means, wherein FIG. 10A shows a plan view and FIG. 10B shows a side view.
11A and 11B are views showing a second holding member of the holding means, wherein FIG. 11A shows a plan view and FIG. 11B shows a side view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Ceiling panel 11 Peripheral part 20 Receiving member 21 Receiving member main body 22 Horizontal member 23 Main vertical member 25 Gutter-shaped member 30 Suspension tool 31 Rod 32 Gripping part 33 Locking part 36 Bolt 37 Coil spring 38 Connection member 40 Ceiling panel presser 41 Gripping part 42 holding part 50 support beam, lip groove type steel 51 locking part, lip 60 holding means 61 first holding member 62 second holding member 63 bolt 64 flanged nut 70 connecting member 80 lighting fixture 81 bolt hole K ceiling structure

Claims (6)

A ceiling panel pre-cut into a required shape; a receiving member disposed in a predetermined arrangement for supporting a peripheral portion of the ceiling panel; a gripping part that holds the receiving member; a locking part; the gripping part; A suspension device having a connection member for connecting the stop portion, a support beam for locking the engagement portion of the suspension device by the engagement portion, and a ceiling mounting device such as a lighting device attached to the receiving member are held. and a holding means for,
The receiving member includes a receiving member main body in which a horizontal member and a main vertical member having a predetermined length are arranged in an inverted T shape, and left and right at a lower portion of the upper end portion while leaving the upper end portion of the main vertical member. A bowl-shaped member having a drop surface parallel to the main vertical member disposed symmetrically,
The gripping portion includes a movable member having a gripping claw at the lower end and a non-movable member having a gripping claw at the lower end,
The upper side portions of the movable member are side surfaces directed toward the upper inner side of the non-movable member,
The ceiling structure according to claim 1 , further comprising a notch that can accommodate an upper end portion of the main vertical member in a state where the gripping claws grip the hook-shaped member at a lower portion of the both side surfaces . A predetermined arrangement of the receiving members includes a receiving member arranged in a predetermined direction, and a receiving member arranged so that an end surface thereof is orthogonal to a side surface of the receiving member arranged in the predetermined direction. A piece is fixed to the side surface of the receiving member arranged in the predetermined direction, and the other piece is connected by a connecting member fixed perpendicular to the end side surface of the receiving member arranged in the predetermined direction. The ceiling structure according to claim 1, wherein the ceiling structure is made.  The holding means includes a first holding member mounted from one side edge side of the horizontal member of the receiving member having a bolt protruding downward, and the other of the receiving member to which the first holding member is mounted. The ceiling structure according to claim 1, further comprising a second holding member attached to the horizontal member of the receiving member from the side edge portion side.  The ceiling structure according to claim 1, further comprising a ceiling panel pressing member that is locked to the receiving member and presses the ceiling panel. A ceiling panel pre-cut into a required shape, a receiving member that supports a peripheral portion of the ceiling panel, a gripping portion that grips the receiving member, a locking portion, and a connection member that connects the gripping portion and the locking portion. A ceiling structure construction method using a required number of suspension members, a supporting beam for retaining the suspension portion of the suspension device by a retaining portion, and a holding means for retaining a ceiling mounting device such as a lighting fixture. ,
The receiving member includes a receiving member main body in which a horizontal member and a main vertical member having a predetermined length are arranged in an inverted T shape, and a lower portion of the main vertical member with the upper end portion of the main vertical member remaining. A bowl-shaped member having a drop surface parallel to the main vertical member disposed symmetrically,
The gripping portion includes a movable member having a gripping claw at the lower end and a non-movable member having a gripping claw at the lower end,
The upper side portions of the movable member are side surfaces directed toward the upper inner side of the non-movable member,
In the lower part of the both side surfaces, with the gripping claw gripping the bowl-shaped member, it has a notch that can accommodate the upper end of the front main vertical member,
A procedure for disposing the support beam at a predetermined position;
A procedure of disposing the receiving member at a predetermined position;
A procedure of holding the receiving member by the holding portion of the lifting tool while lowering the holding portion from above the main vertical member, and locking the locking portion to the locking portion of the support beam;
Attaching the holding means to the receiving member;
A procedure for placing a ceiling panel on the receiving member;
A method for constructing a ceiling structure, comprising: a step of causing the holding means to hold a ceiling mounting fixture such as a lighting fixture.  6. The method for constructing a ceiling structure according to claim 5, further comprising a step of pressing the ceiling panel with the ceiling panel pressing member.

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