Ceiling structure

Abstract

To provide a ceiling structure in which a ceiling surface material is attached to a ceiling portion of a building, the ceiling surface material can be attached with a simple configuration, installation is easy, workability is excellent, and maintenance is also easy.SOLUTION: The ceiling structure has a bar material 10 having a C-shaped cross section, which is arranged horizontally on a ceiling portion 4 of a building and attached with an opening portion 12 facing downward, a connecting member 14 connected to the bar material 10, and an engaging member 18 having an engaging portion 62 and an engaged portion 72 engageable with the engaging portion 62. One of the engaging portion 62 and the engaged portion 72 is arranged on a supporting portion 40 provided on the lower portion of the connecting member 14. The other of the engaging portion 62 or the engaged portion 72 is arranged on a ceiling surface material 16. The ceiling surface material 16 is placed under the connecting member 14. The engaging portion 62 and the engaged portion 72 are engaged with each other, the ceiling surface material 16 is engaged with and held by the connecting member 14, and the ceiling surface material 16 is attached to the ceiling portion 4.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a ceiling structure in which a ceiling surface material is attached to the ceiling of a building. [Background technology]

[0002] When arranging a ceiling surface material on the ceiling of a building, it is common to use a ceiling joist to attach the ceiling surface material to it.

[0003] For example, in Patent Document 1, as shown in Figure 9, in a ceiling structure in which a ceiling panel 104 is attached to a ceiling base material 102 using a ceiling panel mounting member 100, the ceiling panel mounting member 100 comprises a receiving member 106 fixed to the ceiling base material 102 and a support member 108 that supports the ceiling panel 104, the receiving member 106 is provided with an engaging portion 110 and the support member 108 is provided with an engaged portion 112 that engages with the engaging portion 110.

[0004] Patent document 2 also describes a connecting device in which a protruding fitting A is fixed to the back surface of a ceiling panel B and this protruding fitting A is connected to a rafter C with a locking groove.The protruding fitting A is locked into the locking groove of the rafter C, joining the ceiling panel B to the rafter C. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-71338 A [Patent Document 2] Japanese Utility Model Application Publication No. 55-35222 Summary of the Invention [Problem to be solved by the invention]

[0006] The ceiling board mounting member according to Patent Document 1 and the protruding metal fitting according to Patent Document 2 are both mounting members for mounting a ceiling board to a ceiling base material (rough girders). When mounting a ceiling board to a rough girders using such mounting members, precision is required for the positional relationship between the ceiling base material and the ceiling board, and accuracy is required during construction. In addition, if there is an error, the correction work is time-consuming. On the other hand, there is a demand for the development of a ceiling structure that requires less work and can be installed effectively, for example when using relatively lightweight ceiling panels.

[0007] To solve the above problems, the present invention aims to provide a ceiling structure that allows ceiling surface materials to be attached with a simple structure, is easy to install, has excellent workability, and is easy to maintain. [Means for solving the problem]

[0008] In order to solve the above technical problems, the ceiling structure according to the present invention, as shown in Figs. 1-3 etc., comprises a bar material 10 with a C-shaped cross section, which is arranged horizontally on the ceiling portion 4 of a building and has an opening 12 facing downward, a connecting member 14 which is connected to the bar material 10, a ceiling surface material 16 which is attached to the underside of the connecting member 14, a locking portion 62 and a locked portion 7 which can be engaged with the locking portion 62, and a connecting member 14 which is connected to the bar material 10 and has both locking recesses 44 locked and fixed to the left and right lip portions 34 of the opening of the bar material 10. 2, and one of the locking portion 62 or the locked portion 72 is placed on a support portion 40 provided at the bottom of the connecting member 14, the other of the locking portion 62 or the locked portion 72 is placed on the ceiling surface material 16, the ceiling surface material 16 is placed at the bottom of the connecting member 14, the locking portion 62 and the locked portion 72 are engaged with each other, the ceiling surface material 16 is engaged and held to the connecting member 14, and the ceiling surface material 16 is attached to the ceiling portion 4.

[0009] As shown in FIG. 1 and other figures, the ceiling structure according to the present invention is comprised of a bar material 10 with a C-shaped cross section, which is arranged horizontally on the ceiling 4 of a building and has an opening 12 facing downward, a connecting member 14 which is connected to the bar material 10 and has both locking recesses 44 locked to the left and right lip portions 34 of the opening 12 of the bar material 10, a ceiling surface material 16 which is attached to the underside of the connecting member 14, a male member 50 and a female member 52 which can be engaged with the male member 50. The ceiling surface material 16 is arranged at the bottom of the connecting member 14, and the male member 50 and the female member 52 are attached to the connecting member 14. The male member 50 and the female member 52 are attached to the connecting member 14, and the ceiling surface material 16 is attached to the ceiling portion 4. The ceiling surface material 16 is attached to the ceiling portion 4 by engaging the male member 50 and the female member 52.

[0010] In addition, in the ceiling structure of the present invention, the male member 50 has a male portion 56 provided with an engaging portion 62, and a head portion 54 that can be fixed to this male portion 56, and the female member 52 has a female portion 66 provided with an engaged portion 72 that can be engaged with the engaging portion 62, and a cap portion 64 that can be fixed to this female portion 66.

[0011] In addition, the ceiling structure of the present invention is configured such that the head 54 of the male member 50 is placed above the support portion 40 of the connecting member 14, the male portion 56 is placed below the support portion 40, and the head 54 and the male portion 56 are fixed through the support hole portion 48 provided in the support portion 40, while the engaged portion 72 of the female member 52, which is formed by fixing and integrating the female portion 66 and the cap portion 64 of the female member 52, is inserted into the mounting hole portion 88 provided in the ceiling surface material 16 and engaged with the engaging portion 62 of the upper male member 50, thereby engaging the ceiling surface material 16 to the connecting member 14.

[0012] The ceiling structure according to the present invention is configured such that the support hole portion 48 of the connecting member 14 is an elongated hole that is long in a direction intersecting the longitudinal direction of the bar material 10. Furthermore, the ceiling structure according to the present invention is configured such that the connecting members 14 are connected to the bar material 10 so as to be movable in the longitudinal direction thereof.

[0013] The ceiling structure of the present invention is configured such that the engaging portion 62 or male member 50 of the fastening member 18 and the engaged portion 72 or female member 52 are detachable, making it possible to remove the ceiling surface material 16.

[0014] In the ceiling structure of the present invention, the connecting member 14 has a plate-shaped support portion 40 and a tongue-shaped portion 42 that is erected in one direction from the left and right sides of the support portion 40 and has locking recesses 44 formed therein that can be engaged with the left and right lip portions 34 of the bar material 10, respectively.One of the locking recesses 44 of the tongue-shaped portion 42 is engaged with the lip portion 34 of the bar material 10, and by rotating an arc-shaped guide portion 46 provided on the tongue-shaped portion 42, the spacing of the opening 12 of the bar material 10 is widened, the other locking recess 44 of the tongue-shaped portion 42 is engaged with the lip portion 34 of the bar material 10, and the locking recesses 44 are engaged and held on the lip portion 34 of the bar material 10, respectively, thereby connecting the connecting member 14 to the bar material 10. Effect of the Invention

[0015] According to the ceiling structure of the present invention, one of the locking portion or the locked portion is placed on the support portion provided at the bottom of the connecting member, the other of the locking portion or the locked portion is placed on the ceiling surface material, the ceiling surface material is placed at the bottom of the connecting member, the locking portion and the locked portion are engaged with each other, the ceiling surface material is engaged and held to the connecting member, and the ceiling surface material is attached to the ceiling portion.This configuration results in a simple structure for installing the ceiling surface material, easy installation work, excellent workability, and easy maintenance.

[0016] According to the ceiling structure of the present invention, one of the male or female members is placed on the support portion provided at the bottom of the connecting member, the other of the male or female member is placed on the ceiling surface material, the ceiling surface material is placed at the bottom of the connecting member, the male member and the female member are engaged with each other, the ceiling surface material is engaged and held by the connecting member, and the ceiling surface material is attached to the ceiling portion.This adopts a configuration in which the ceiling surface material can be attached with a simple structure, the installation work is easy, it is easy to install, and it is easy to maintain and manage.

[0017] According to the ceiling structure of the present invention, the male member has a male portion provided with an engagement portion and a head portion that can be fixed to this male portion, and the female member has a female portion provided with an engagement portion that can be engaged with the engagement portion, and a cap portion that can be fixed to this female portion.This has the effect that the ceiling surface material can be easily attached to the connecting fittings, making construction easy and quick.

[0018] According to the ceiling structure of the present invention, the head of the male member is placed above the support part of the connecting member, and the male part is placed below the support part, and the head and male part are fixed through the support hole provided in the support part, while the engaged part of the female member, which is formed by fixing and integrating the female part and cap part of the female member, is inserted into the mounting hole provided in the ceiling surface material and engaged with the engaging part of the upper male member, thereby engaging the ceiling surface material to the connecting member.Since there is no need to attach the female member to the ceiling surface material in advance, the attachment of the ceiling surface material to the connecting member can be carried out efficiently, resulting in good work efficiency.

[0019] According to the ceiling structure of the present invention, the support hole portion of the connecting member is made a long hole that is long in a direction intersecting the longitudinal direction of the bar material, and the connecting member is connected so that it can move in the longitudinal direction of the bar material. Therefore, if there is a positional misalignment (error) between the connecting member and the male and female members attached to the ceiling surface material, respectively, the position can be easily adjusted.

[0020] According to the ceiling structure of the present invention, the locking portion or male member and the locked portion or female member of the fastening member are configured to be detachable, making it possible to remove the ceiling surface material, which has the effect of making it possible to replace the ceiling surface material, etc., and providing excellent convenience.

[0021] According to the ceiling structure of the present invention, one of the locking recesses of the tongue-shaped portion is engaged with the lip portion of the bar material, and the spacing of the opening of the bar material is widened by rotating the arc-shaped guide portion provided on the tongue-shaped portion, and the other locking recess of the tongue-shaped portion is engaged with the lip portion of the bar material, and the locking recesses are each engaged and held on the lip portion of the bar material, and the connecting member is connected to the bar material, which has the effect of allowing the connecting member to be connected to the bar material easily and quickly, contributing to work efficiency. [Brief description of the drawings]

[0022] [Figure 1] FIG. 2 is an exploded perspective view of a ceiling structure according to an embodiment. [Diagram 2] 1 is an exploded perspective view of a portion of a ceiling structure according to an embodiment of the present invention; [Diagram 3] FIG. 1A is a diagram showing the state immediately before the male member is attached to the connecting fitting and the ceiling surface material is attached by the female member (integrated) and the two parts are engaged, and FIG. 1B is a diagram showing the state after the two parts have been engaged. [Figure 4] 13A and 13B are diagrams showing a state in the middle of connecting the connecting member to the bar material. [Diagram 5] 13 is a diagram showing the state in which the connecting member is attached to the bar material. FIG. [Figure 6] 13A and 13B are diagrams showing a state in which a male member is attached to a connecting member and a state in which a female member is integrated. [Figure 7] 13 is a diagram showing a configuration in which a male member is attached to a connecting fitting, a female member is attached to a ceiling surface material, and the two members are engaged with each other. FIG. [Figure 8] A diagram showing the state in which a ceiling surface material is attached to a connecting member attached to a bar material in the ceiling section. [Figure 9] FIG. 1 is a diagram showing a ceiling structure according to a conventional example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a ceiling structure according to an embodiment. In this ceiling structure 2, a hanging bolt 6 hangs down from a ceiling 4 of a building, a bar support 8 is attached to the hanging bolt, and a bar material 10 is engaged with the bar support 8. At this time, the opening 12 of the bar material 10 is arranged facing downward.

[0024] Furthermore, a connecting member 14 is engaged with the opening 12 of the bar material 10, and a ceiling surface material 16 is attached to this connecting member 14. In this case, the ceiling surface material 16 is attached to the connecting member 14 by using an anchoring member 18.

[0025] The hanging bolt 6 is hung from the ceiling frame of the building, and a receiver 20 is attached to the bottom so that it can move up and down. The bar receiving material 8 has a U-shaped cross section, and is held and fixed to the receiver 20 with its opening facing sideways. The bar receiving materials 8 are arranged parallel to each other and horizontally at a specified interval.

[0026] The bar material 10 is arranged below the bar receiving material 8 in a state where it intersects (is perpendicular to) the bar receiving material 8 using a fixing bracket 22. The fixing bracket 22 has a receiving portion with a U-shaped cross section and a hook-shaped hooking portion, and supports the bar material 10 at the receiving portion and supports the bar material 10 by hooking the hooking portion to the bar receiving material 8.

[0027] As shown in Fig. 2, the bar material 10 is a long material with a C-shaped cross section, and is arranged with the opening 12 facing downward. The bar material 10 has an upper plate portion 30, side plate portions 32 formed downward from the left and right sides of the upper plate portion 30, and lip portions 34 formed by bending inward at the lower portion of each side plate portion 32. The lip portions 34 are bent inward and further bent into a U-shape toward the upper plate portion 30. An opening 12 is formed between the two lip portions 34, 34. The bar material 10, the bar support material 8 and the fixing bracket 22 are all made of lightweight metal material such as iron.

[0028] The connecting member 14 has a flat support portion 40 and a pair of tongue-shaped portions 42 standing upward from the left and right sides of the support portion 40. The tongue-shaped portions 42 have locking recesses 44 formed on both edge portions on both sides, and an arc-shaped guide portion 46 that engages with the lip portion 34 of the bar material 10 is formed on one edge portion of the tip of the tongue-shaped portions 42. Further, a support hole 48 is provided in the center of the support portion 40 of the connecting member 14, and this support hole 48 is an elongated hole that is long in a direction parallel to the tongue-shaped portion 42. The connecting member 14 is formed by pressing an iron plate.

[0029] As shown in FIGS. 3( a ) and 3 ( b ), the engaging member 18 is composed of a male member 50 and a female member 52 that can be engaged with the male member 50 . The male member 50 comprises a head portion 54 and a male portion 56 that can be fixed to the head portion 54. The head portion 54 has a locking projection 58 formed in the center. A cylindrical locking portion 62 is formed on the male portion 56, and the tip of the locking portion 62 has an expanded diameter. A fitting hole 60 is formed in the center of the male portion 56, into which the locking protrusion 58 of the head portion 54 can be inserted.

[0030] The female member 52 is composed of a disk-shaped cap portion 64 and a female portion 66 that can be fixed to the cap portion 64. The cap portion 64 has a locking protrusion 68 formed in the center. A cylindrical locked portion 72 is formed on the female portion 66. The tip of this locked portion 72 bulges inward, which ensures that it can be securely engaged with the locking portion 62 of the male portion 56. A fitting hole 70 is formed in the center of the female portion 66, into which the locking protrusion 68 of the cap portion 64 can be inserted.

[0031] The male member 50 engages with the engaging member 18, and the engaging portion 62 of the male member 50 fits into the hole-shaped engaged portion 72 of the female member 52 with a predetermined pressing force, thereby engaging the two and maintaining the engaged state. At this time, by interposing the ceiling surface material 16 (mounting hole portion 88) between the male member 50 and the female member 52, the ceiling surface material 16 can be sandwiched between the two members and held and fixed. In addition, the engagement state is released when the two are pulled apart with a predetermined force. In this manner, the male member 50 and the female member 52 of the engaging member 18 are detachable.

[0032] Alternatively, an attraction member using a magnet (permanent magnet) can be used instead of the engaging member 18. This attraction member has an attraction part and an attracted part. The attraction part is made of a magnetic magnet, and the attracted part uses a magnetic material such as iron. When the connecting member 14 is made of a magnetic material, the connecting member 14 (supporting portion 40) itself becomes the attracted portion. Also, the S pole side (or N pole side) of a magnet can be used as the attracting portion, and the N pole side (or S pole side) of a magnet can be used as the attracted portion, and the attractive force between the S pole and the N pole can be utilized.

[0033] As a specific form of the suction member, for example, a suction portion of the suction member is arranged in place of the locking portion 62 of the male portion 56 of the engagement member 18, and an attracted portion of the suction member is arranged in place of the locked portion 72 of the female portion 66. Also, the form of the head portion 54, cap portion 64, etc. of the engagement member 18 can be applied to the suction member as it is. In this way, the form of the suction member is basically the same as that of the fastening member 18, except for the use of the suction part and the attracted part. Also, the form in which the suction member is attached to the connecting member 14 and the ceiling surface material 16 is not particularly different from the form in which the fastening member 18 is attached to the connecting member 14 and the ceiling surface material 16.

[0034] As shown in Fig. 2 above, a rectangular (square or oblong) plate is used for the ceiling surface material 16. The ceiling surface material 16 is made of a relatively lightweight material, such as a thin white plate made of synthetic resin. The ceiling surface material 16 may be entirely flat, or may have a rectangular bulge in the center, leaving the edges around it.

[0035] The ceiling surface material 16 is provided with mounting holes 88, and the female members 52 (or male members 50) of the fastening member 18 are disposed or attached to the mounting holes 88. The mounting holes 88 of the ceiling surface material 16 are provided at main points that support the ceiling surface material 16. For example, the mounting hole portions 88 are provided at the corners of the ceiling surface member 16, the middle portions of the sides between the corners, the central portion of the ceiling surface member 16, and other locations necessary for supporting the ceiling surface member 16. The number of the mounting hole portions 88 depends on the size, shape, etc. of the ceiling surface member 16, but four, six, eight, or more can be provided at the corners of the ceiling surface member 16 as necessary.

[0036] Also, the size of the mounting hole portions 88 of the ceiling surface member 16 is set to a size through which the engaged portion 72 of the female member 52 can be inserted. This is for engaging the male member 50 and the female member 52 through the mounting hole portions 88. If the size of the mounting hole portions 88 is formed slightly larger than the required size to provide some play, it will be possible to adjust in case there are errors such as misalignment in the engagement position between the male member 50 and the female member 52.

[0037] Here, a method of attaching the connecting member 14 to the bar member 10 will be described. As shown in FIG. 4, first, the tip of the tongue portion 42 of the connecting member 14 is inserted into the opening 12 of the bar member 10 from the inside, and the locking recess 44 on the side opposite to the guide portion 46 of the tongue portion 42 is locked to the lip portion 34 on one side of the opening 12. Then, the starting point (S) of the guide portion 46 of the tongue portion 42 is brought into contact and engaged with the lip portion 34 on the other side of the opening 12, and while rotating the connecting member 14, the guide portion 46 is engaged and slid on the lip portion 34 and gradually inserted inside.

[0038] As the connecting member 14 rotates, with the corner of the locking recess 44 locked to one lip portion 34 of the bar member 10 as the fulcrum (Q), the guide portion 46 sliding from the starting point (S) reaches the end point (E). Here, the arc-shaped guide portion 46 is formed such that the distance (QS = m, QE = n) from the fulcrum (Q) gradually increases (m < n) as it reaches from the starting point (S) to the end point (E). For this reason, the sliding guide portion 46 widens the interval between the two lip portions 34, the locking recess 44 of the tongue portion 42 is locked to the lip portion 34, and due to the elastic return of the bar member 10, both locking recesses 44 of the tongue portion 42 are locked and held to the respective lip portions 34.

[0039] 5 shows the state in which the connecting member 14 is attached to the bar material 10. The attachment position of the connecting member 14 to the bar material 10 can be freely determined, and since the connecting member 14 is engaged with the lip portion 34 of the bar material 10, the connecting member 14 can freely move or slide in the longitudinal direction of the bar material 10. Therefore, if there is a deviation (error) in the position of the connecting member 14 (fixed to the male member 50, etc.) relative to the bar material 10 with respect to the mounting hole portion 88 (fixed to the female member 52, etc.) of the ceiling surface material 16 to be arranged later, this can be adjusted by the movement of the connecting member 14.

[0040] In this way, the attachment position of the connecting member 14 can be moved in the longitudinal direction of the bar material 10, and the direction of the long hole of the support hole 48 provided in the support part 40 of the connecting member 14 is perpendicular to the longitudinal direction of the bar material 10. Therefore, the position of the support hole 48 (for fixing the male member 50, etc.) of the support part 40 of the connecting member 14 can be moved in all four directions relative to the corresponding attachment hole 88 (for fixing the female member 52, etc.) of the ceiling surface material 16 to be placed.

[0041] Therefore, since the position of the male member 50 can be adjusted in all four directions relative to the female member 52, when the ceiling surface material 16 is arranged and attached, the male member 50 and the female member 52 can be smoothly and quickly engaged with each other. This makes it possible to easily and efficiently carry out the construction work for attaching the ceiling surface material 16 to the ceiling section 4.

[0042] Next, the construction of disposing the ceiling surface material 16 on the ceiling portion 4 will be described. Regarding the fastening member 18, its male member 50 can be attached to either the connecting member 14 or the ceiling panel 16. On the other hand, the female member 52 is attached to the opposite member to the male member 50, that is, the panel.

[0043] Here, a mode in which the male member 50 is attached to the connecting member 14 and the female member 52 is attached to the ceiling surface material 16 will be described. As described above, the bar material 10 is placed horizontally on the ceiling portion 4 of the building, and the opening portion 12 is attached facing downward. The opening portion 12 of the bar material 10 faces downward so that the connecting member 14 can be engaged and fixed to this opening portion 12.

[0044] Furthermore, since the distance between adjacent bar materials 10 is related to the positions of the mounting holes 88 provided in the ceiling surface material 16, the distance between the bar materials 10 is set according to the size of the ceiling surface material 16, etc. For example, for a relatively small ceiling surface material 16, it may be placed between two bar materials 10, and for a large ceiling surface material 16, it may be placed across three or four or more bar materials 10. The position of the mounting hole 88 of the ceiling surface material 16 is set so that when the ceiling surface material 16 is placed below the bar material 10, it is located in the vicinity of directly below the bar material 10.

[0045] Then, the male member 50 of the engaging member 18 is attached to the connecting member 14 in advance. 6, the male member 50 is attached to the support hole 48 of the support part 40 of the connecting member 14. This male member 50 is composed of a head 54 and a male part 56, with the male part 56 disposed on the outer side of the support part 40 and the head 54 disposed on the inner side (the side sandwiched by the tongue-shaped parts 42).

[0046] In this case, the locking protrusion 58 of the head 54 is inserted into the support hole 48, the male part 56 is placed on the opposite side, the locking protrusion 58 is inserted into the fitting hole 60 of the male part 56, and the tip of the locking protrusion 58 is crushed (expanded) by crimping to lock it into the male part 56. In this way, the male member 50 is fixed to the support hole 48 of the support part 40 of the connecting member 14.

[0047] Here, the head 54 and male part 56 of the male member 50 are crimped to the support part 40 of the connecting member 14 by the crimping, sandwiching the front and back of the support hole part 48, but at this time, they may not be completely crimped. In other words, the head 54 and the male part 56 are crimped to the front and back of the support hole part 48 with a small gap (play) left. In this way, the male member 50 is attached to the support hole part 48 (long hole) of the support part 40 of the connecting member 14 so as to be movable within the range of the long hole. Therefore, when installing the ceiling surface material 16, if there is a slight misalignment (error) in the position between the male member 50 and the female member 52 installed in the mounting hole portion 88 of the ceiling surface material 16, this misalignment can be adjusted by moving the male member 50.

[0048] On the other hand, the female member 52 may be attached to the ceiling surface material 16 in advance or may be attached at the time of attachment. In either case, the structure of the engagement between the male member 50 and the female member 52 remains the same. Here, first, a manner in which the female member 52 is attached to the ceiling surface material 16 during engagement will be described.

[0049] For the female member 52, the cap portion 64 and the female mold portion 66 are integrated together. In this case, the locking protrusion 68 of the cap portion 64 of the female member 52 is inserted into the fitting hole 70 of the female mold portion 66, and the tip of the locking protrusion 68 is crushed by crimping to be fixed and integrated with the female mold portion 66. This is a form in which the female member 52 is fixed without anything being interposed therebetween (blank striking), and the function of the locked portion 72 remains in the female member 52.

[0050] 3 shows the form of engagement between the male member 50 and the female member 52 via the ceiling surface material 16, and also shows the female member 52 in which the cap portion 64 and the female mold portion 66 are integrated. In this case, the size of the mounting hole portion 88 of the ceiling surface material 16 is set in a state in which the locked portion 72 of the female member 52 can be inserted. In addition, the size of the mounting hole portion 88 is set so as not to exceed the maximum diameter of the female member 52 (male member 50).

[0051] Then, the male members 50 are attached to the connecting members 14, and the connecting members 14 are attached to the predetermined positions of the bar material 10. The ceiling surface material 16 is provided with mounting holes 88 in advance at required locations. Next, the ceiling surface material 16 is placed under the connecting member 14 (with the male member 50 fixed) placed on the bar material 10, and the locked portion 72 of the integrated female member 52 is fitted from below the mounting hole 88 of the ceiling surface material 16. Furthermore, this locked portion 72 is pressed into the locking portion 62 of the upper male member 50 to engage them together. The same process is repeated for the other mounting hole 88 of the ceiling surface material 16, and the female member 52 is used to engage with the upper male member 50, and the ceiling surface material 16 is attached. When engaging, the cap portion 64 of the female member 52 is pressed.

[0052] At this time, if a misalignment occurs between the position of the male member 50 of the connecting member 14 and the female member 52 of the ceiling panel material 16 to which it is intended to be engaged due to an error or the like, if the misalignment is in the longitudinal direction of the bar material 10, the connecting member 14 is moved (slid) in the longitudinal direction of the bar material 10. When the misalignment is perpendicular to the longitudinal direction of the bar material 10, the male member 50 attached to the support hole portion 48 (long hole) of the connecting member 14 is moved (slid) in the direction of the long hole. Once the positional relationship can be adjusted in this manner, the female member 52 is fitted into the male member 50 and pressed to engage with it. The other ceiling surface materials 16 are attached in the same manner.

[0053] Here, a configuration in which the female member 52 is attached to the ceiling surface material 16 in advance as shown in FIG. 7 will be described. The female member 52 is composed of a cap portion 64 and a female portion 66, with the female portion 66 disposed above the ceiling surface material 16 and the cap portion 64 disposed below. Then, the locking protrusion 68 of the cap portion 64 is inserted into the mounting hole 88 of the ceiling surface material 16, the female portion 66 is brought into contact with the opposite side, the locking protrusion 68 is fitted into the fitting hole 70 of the female portion 66, and the tip of the locking protrusion 68 is crushed (expanded) by caulking to be fixed to the female portion 66. In this manner, the female member 52 is fixed to the mounting hole 88 of the ceiling surface material 16.

[0054] Next, after attaching the male member 50 to the connecting member 14, the connecting member 14 is attached to a predetermined position on the bar material 10. This predetermined position corresponds to the arrangement position of the mounting hole portion 88 of the ceiling surface material 16 that will be attached later. Then, the male member 50 of the connecting member 14 and the female member 52 of the ceiling surface material 16 are engaged with each other by pressing. In the case of this embodiment, since the female member 52 is attached to the ceiling panel 16, the ceiling panel 16 can simply be placed below the upper connecting member 14 and engaged with the upper male member 50.

[0055] As described above, there are two types of female member 52: one in which cap portion 64 and female portion 66 are used as one unit, and one in which ceiling surface material 16 is interposed between cap portion 64 and female portion 66 and female member 52 is attached to ceiling surface material 16 in advance. The embodiment in which the female member 52 is used integrally is effective when the ceiling surface material 16 is relatively thin and hard. On the other hand, the embodiment in which the female member 52 is attached to the ceiling surface material 16 in advance is effective when the ceiling surface material 16 is soft, such as cloth, or thick.

[0056] In either case, by forming the mounting hole portion 88 slightly larger to allow for some play, the position of the female member 52 can be moved within this range, making it possible to adjust the position between it and the mating male member 50. In this case, because the ceiling surface material 16 is thin and hard, a form is adopted in which the female member 52 is integrated. In this case, the work of integrating the cap portion 64 and the female mold portion 66 of the female member is simpler and more efficient than the work of attaching the female member to the ceiling surface material 16, and the work can be completed more quickly overall.

[0057] Although the above has described a configuration in which the male member 50 is attached to the connecting member 14 and the female member 52 is attached to the ceiling surface material 16, it is also possible to adopt a configuration in which the female member 52 is attached to the connecting member 14, conversely. In this case, the female portion 66 of the female member 52 is disposed on the outside of the support portion 40 of the connecting member 14, and the cap portion 64 is disposed on the inside.

[0058] Then, the locking protrusion 68 of the cap portion 64 is inserted into the support hole portion 48 of the connecting member 14, the female portion 66 is placed on the opposite side, the locking protrusion 68 is fitted into the mating hole portion 70 of the female portion 66, and the tip of the locking protrusion 68 is crushed (expanded) by crimping to fix it to the female portion 66. In this case, the cap portion 64 and the female portion 66 are crimped to the front and back surfaces of the support hole portion 48, leaving a small gap (play). This allows the female member 52 to be attached to the support hole portion 48 (long hole) of the support portion 40 of the connecting member 14 so as to be movable within the range of the long hole, and any error in this direction can be adjusted.

[0059] On the other hand, a male member 50 is attached to the ceiling surface material 16. For this male member 50, the male portion 56 is placed on the upper side of the ceiling surface material 16, and the head portion 54 is placed on the lower side. Then, the locking protrusion 58 of the head portion 54 is fitted into the mounting hole portion 88, and the male portion 56 is placed from the opposite side, the locking protrusion 58 is inserted into the fitting hole portion 60 of the male portion 56, and the tip of the locking protrusion 58 is crushed (expanded) by crimping to be fixed to the male portion 56. In this way, the male member 50 is fixed to the mounting hole portion 88 of the ceiling surface material 16. Then, the female member 52 of the connecting member 14 and the male member 50 of the ceiling surface material 16 are engaged with each other, and the ceiling surface material 16 is attached to and supported by the connecting member 14.

[0060] In addition, in the case where the male member 50 is not attached to the ceiling surface material 16 in advance, the head portion 54 and the male portion 56 are integrated together. In this case, the male part 56 is placed on the side opposite the locking protrusion 58 of the head 54, the locking protrusion 58 is inserted into the fitting hole 60 of the male part 56, and the tip of the locking protrusion 58 is crushed (expanded) by crimping to be fixed to the male part 56. In this way, the head 54 and the male part 56 of the male member 50 are integrated. The male member 50 has the locking portion 62 of the male part 56 fitted into the mounting hole 88 of the ceiling surface material 16 from below, and is engaged with the locked portion 72 of the female member 52 attached to the connecting member 14 at the top. In this way, the ceiling surface material 16 is attached to and supported by the connecting member 14.

[0061] As described above, there are various modes for attaching the fastening members 18 (male member 50, female member 52) to the connecting member 14 and the ceiling surface material 16. After the connecting members 14 have been attached to the bar material 10 arranged on the ceiling portion 4, the ceiling surface material 16 is then attached. Then, the ceiling surface material 16 is placed on the underside of the connecting member 14 which is arranged on the bar material 10 and has the male member 50 attached thereto, and the interlocking portion 72 of the female member 52 is fitted from below into the mounting hole portion 88 of the ceiling surface material 16, or the interlocking portion 72 of the female member 52 attached to the mounting hole portion 88 is fitted and pressed into the interlocking portion 62 of the male member 50, thereby engaging the two.

[0062] Alternatively, the ceiling panel 16 is placed below the connecting member 14 to which the female member 52 is attached, and the locking portion 62 of the male member 50 is fitted from below into the mounting hole portion 88 of the ceiling panel 16, or the locking portion 62 of the male member 50 attached to the mounting hole portion 88 is fitted and pressed into the locked portion 72 of the female member 52, thereby engaging the two.

[0063] 8 shows a state in which a ceiling surface material 16 is attached to the connecting member 14 of the bar material 10 arranged on the ceiling portion 4. When multiple ceiling surface materials 16 are arranged, the other ceiling surface materials 16 are attached to the connecting member 14 in the same manner. When installing the ceiling panel 16, the fastening member 18 (male member 50 or female member 52) of the ceiling panel 16 is simply placed below the connecting member 14 arranged on the bar material 10, and engaged with the fastening member 18 (female member 52 or male member 50) attached to the upper connecting member 14.

[0064] At this time, if there is a misalignment between the position of the connecting member 14 and the position of the ceiling surface material 16 due to error or the like, the misalignment can be adjusted by moving the connecting member 14 in the longitudinal direction of the bar material 10, or by moving the male member 50 (or female member 52) attached to the support hole portion 48 (long hole) of the connecting member 14 in the direction of the long hole.

[0065] Furthermore, when multiple ceiling surface materials 16 are attached to the ceiling section 4, there are various configurations for the joints between adjacent ceiling surface materials 16. For example, bar materials 10 are similarly arranged on adjacent ceiling surface materials 16, and connecting members 14 are attached to them. In this case, the bar materials 10 supporting the ends of the adjacent ceiling surface materials 16 are arranged side by side.

[0066] Also, the midpoint between adjacent bar materials 10 can be the joint between adjacent ceiling surface materials 16. In this case, the attachment position of the fastening member 18 (male member 50 or female member 52) to the ceiling surface material 16 is a position shifted inward by half the distance between the bar materials 10 from the end of the side of the ceiling surface material 16.

[0067] Alternatively, it is possible to overlap the edges of adjacent ceiling panels 16 and attach the fastening members 18 (male members 50 or female members 52) to the overlapping portions of the two panels. In this case, the two ceiling panels 16 are attached to the fastening members 18 (female members 52 or male members 50) of the connecting members 14 arranged on the bar material 10 at the same time.

[0068] Here, the ceiling structure 2 can be used in various ways, for example, by using a relatively lightweight material as the ceiling surface material 16, placing this ceiling surface material 16 on the ceiling part 4 inside the building, dividing the interior space into upper and lower parts by the ceiling surface material 16, and using the lower space as the interior space.

[0069] Therefore, according to the ceiling structure of the above-mentioned embodiment, the ceiling surface material is placed at the bottom of the connecting member attached to the bar material, and the engaging portion and the engaged portion of the fastening member are engaged with each other, which makes it possible to attach the ceiling surface material with a simple structure, and also has the effects of making the installation work easy and providing excellent construction properties, easy maintenance and excellent cost performance. [Explanation of symbols]

[0070] 4 Ceiling 8 Bottom plate part 10 Bar material 12 Opening 14 Connecting members 16 Ceiling Surface Materials 18 Attachment member 34 Lip 40 Support part 42 tongue 44 Locking recess 46 Guide part 48 Support hole 50 Male member 52 Female member 54 Head 56 Male part 62 Locking part 64 Cap part 66 Female part 72 Locked part 88 Mounting hole

Claims

1. A bar member having a C-shaped cross section is arranged horizontally on the ceiling of the building and has an opening facing downward; A connecting member that is connected to the bar material by fixing both of the locking recesses to the left and right lip portions of the opening of the bar material, respectively; A ceiling surface material attached to the lower side of the connecting member; an engaging member including an engaging portion and an engaged portion that can be engaged with the engaging portion; The connecting member has a plate-shaped support portion and a tongue-shaped portion that is erected in one direction from the left and right sides of the support portion and has a locking recess that can be locked to the left and right lip portions of the bar material, one of the locking recesses of the tongue-shaped portion is locked to the lip portion of the bar material, and the interval of the opening of the bar material is widened by rotating an arc-shaped guide portion provided on the tongue-shaped portion, the other locking recess of the tongue-shaped portion is locked to the lip portion of the bar material, and the locking recesses are locked and held to the lip portion of the bar material, and the connecting member is connected to the bar material; One of the locking portion or the locked portion is disposed on the support portion, and the other of the locking portion or the locked portion is disposed on the ceiling surface material; A ceiling structure characterized by placing the ceiling surface material on the lower part of the connecting member, engaging the engaging portion with the engaged portion, engaging and holding the ceiling surface material to the connecting member, and attaching the ceiling surface material to the ceiling portion.

2. A bar member having a C-shaped cross section is arranged horizontally on the ceiling of the building and has an opening facing downward; A connecting member that is connected to the bar material by fixing both of the locking recesses to the left and right lip portions of the opening of the bar material, respectively; A ceiling surface material attached to the lower side of the connecting member; a male member and a female member engageable with the male member; The connecting member has a plate-shaped support portion and a tongue-shaped portion that is erected in one direction from the left and right sides of the support portion and has a locking recess that can be locked to the left and right lip portions of the bar material, one of the locking recesses of the tongue-shaped portion is locked to the lip portion of the bar material, and the interval of the opening of the bar material is widened by rotating an arc-shaped guide portion provided on the tongue-shaped portion, the other locking recess of the tongue-shaped portion is locked to the lip portion of the bar material, and the locking recesses are locked and held to the lip portion of the bar material, and the connecting member is connected to the bar material; One of the male member or the female member is disposed on the support portion, and the other of the male member or the female member is disposed on the ceiling surface material; A ceiling structure characterized by placing the ceiling surface material on the lower part of the connecting member, engaging the male member and the female member, engaging and holding the ceiling surface material to the connecting member, and attaching the ceiling surface material to the ceiling portion.

3. A bar material having a C-shaped cross section, which is arranged horizontally on the ceiling of a building and has an opening facing downward; A connecting member that is connected to the bar material by fixing both of the locking recesses to the left and right lip portions of the opening of the bar material, respectively; A ceiling surface material attached to the lower side of the connecting member; a male member and a female member engageable with the male member; The male member has a male portion provided with a locking portion and a head portion that can be fixed to the male portion, the female member has a female portion provided with a locked portion that can be engaged with the locking portion, and a cap portion that can be fixed to the female portion, One of the male member or the female member is disposed on a support portion provided at a lower portion of the connecting member, and the other of the male member or the female member is disposed on the ceiling surface material; A ceiling structure characterized by placing the ceiling surface material on the lower part of the connecting member, engaging the male member and the female member, engaging and holding the ceiling surface material to the connecting member, and attaching the ceiling surface material to the ceiling portion.

4. The head of the male member is disposed above the support portion of the connecting member, the male portion is disposed below the support portion, and the head and the male portion are fixed to each other through a support hole provided in the support portion; A ceiling structure as described in claim 3, characterized in that the engaging portion of the female member, which is formed by fixing and integrating the female portion and the cap portion of the female member, is inserted into the mounting hole portion provided in the ceiling surface material and engaged with the engaging portion of the male member at the top, thereby engaging the ceiling surface material to the connecting member.

5. 5. The ceiling structure according to claim 4, wherein the support hole portion of the connecting member is an elongated hole that is long in a direction intersecting the longitudinal direction of the bar material.

6. The connecting member has a plate-shaped support portion and a tongue-shaped portion erected in one direction from the left and right sides of the support portion and having locking recesses formed therein that can be locked to the left and right lip portions of the bar material, A ceiling structure as described in any of claims 3 to 5, characterized in that one of the locking recesses of the tongue-shaped portion is locked to the lip portion of the bar material, and by rotating an arc-shaped guide portion provided on the tongue-shaped portion, the spacing of the opening of the bar material is widened, the other locking recess of the tongue-shaped portion is locked to the lip portion of the bar material, the locking recesses are locked and held to the lip portion of the bar material, and the connecting member is connected to the bar material.

7. A bar material having a C-shaped cross section, which is arranged horizontally on the ceiling of a building and has an opening facing downward; A connecting member that is connected to the bar material by fixing both of the locking recesses to the left and right lip portions of the opening of the bar material, respectively; A ceiling surface material attached to the lower side of the connecting member; a male member and a female member engageable with the male member; The connecting member has a plate-shaped support portion and a tongue-shaped portion that is erected in one direction from the left and right sides of the support portion and has a locking recess that can be locked to the left and right lip portions of the bar material, one of the locking recesses of the tongue-shaped portion is locked to the lip portion of the bar material, and the interval of the opening of the bar material is widened by rotating an arc-shaped guide portion provided on the tongue-shaped portion, the other locking recess of the tongue-shaped portion is locked to the lip portion of the bar material, and the locking recesses are locked and held to the lip portion of the bar material, and the connecting member is connected to the bar material; The male member has a male portion provided with a locking portion and a head portion that can be fixed to the male portion, the female member has a female portion provided with a locked portion that can be engaged with the locking portion, and a cap portion that can be fixed to the female portion, A head portion of the male member is disposed above a support portion of the connecting member, the male portion is disposed below the support portion, and the head portion and the male portion are fixed to each other through a support hole portion provided in the support portion; The support hole portion is an elongated hole that is long in a direction intersecting with the longitudinal direction of the bar material, The connecting member is connected so as to be movable in a longitudinal direction of the bar material, on the other hand, The female member is fixed to the female portion and the cap portion of the female member by inserting the engaged portion of the female member into the mounting hole provided in the ceiling surface material, and is engaged with the engaging portion of the male member at the upper part, thereby engaging and holding the ceiling surface material to the connecting member, A ceiling structure, characterized in that the ceiling surface material is attached to the ceiling portion.

8. A ceiling structure as described in Claim 7, characterized in that the engaging portion or male member of the fastening member and the engaged portion or female member are configured to be detachable, thereby enabling the ceiling surface material to be removed.

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