JP2020117939A - Connection structure of ceiling - Google Patents

Abstract

To provide a connection structure of a ceiling which can suppress bending and which does not damage stacking property by reinforcing via a muntin member to connect, even with a thin ceiling panel.SOLUTION: A first ceiling panel 2 and a second ceiling panel 3 comprise a connection portion 9 with which a first muntin member 21 and a second muntin member 22 engage in their joining part 8. The first muntin member 21 and the second muntin member 22 comprise a standing face 27. In the standing face 27, a slit portion 28 is provided. The connection portion 9 comprises: an insertion portion 16 inserted into the slit portion 28; a folded portion 12 formed in a substantial U-shape; and a hook-shaped cutout portion 13. The first muntin member 21 and the second muntin member 22 comprise an engaged portion 23 engaged with the folded portion 12. The first muntin member 21 and the second muntin member 22 are connected with each other by a screw 32, to connect the first ceiling panel 2 with the second ceiling panel 3.SELECTED DRAWING: Figure 5

Description

The present invention relates to a ceiling connecting structure.

An example of a conventional ceiling panel connection structure such as a system bus will be described with reference to FIGS. As shown in FIG. 10( a ), the first ceiling panel 61 and the second ceiling panel 62 that are connected to each other have an overhead ceiling base material 63 formed of a material such as polystyrene foam on the upper surface side (for example, a bathroom). On the back surface side of the ceiling), and a U-shaped folded-back portion 66 is formed at each connection end.

In the vertical portion 67 of the U-shaped folded-back portion 66 of the first ceiling panel 61, a circular insertion hole 72 having a size capable of inserting the conical head 69 of the dowel 68 described later is formed. In the vertical portion 67 of the U-shaped folded-back portion 66 of the second ceiling panel 62, a circular insertion hole 73 having a size capable of inserting at least the screw portion 70 of the dowel 68 is formed.

The first ceiling panel 61 and the second ceiling panel 62 have a frame 76 also serving as a reinforcement shown in FIG. 10B and a connecting fitting 80 as shown in FIG. 67 are abutted and connected.

The frame 76 has a vertical cross section that is orthogonal to the longitudinal direction and is formed in a U shape as shown in FIG. A screw hole 78 is formed in the vertical portion 77 of the frame 76. The screw portion 70 of the dowel 68 having the conical head portion 69 is screwed and fixed to the screw hole 78.

As shown in FIG. 10( c ), the connecting fitting 80 has a vertical cross section that is orthogonal to the longitudinal direction and is formed in a substantially self-shape. An engagement elongated hole 82 formed by communicating the diameter hole portion and the narrow width hole portion is formed.

When connecting the first ceiling panel 61 and the second ceiling panel 62, as shown in FIG. 11A, the frame 76 is fitted into the U-shaped folded-back portion 67 of the second ceiling panel 62. To meet. Then, the screw portion 70 of the dowel 68 is screwed into the screw hole 78 of the frame 76 through the insertion hole 73 of the second ceiling panel 62 to be fixed.

Next, the dowel 68 is passed through the insertion hole 72 of the folded portion 66 of the first ceiling panel 61, and the folded portions of the first ceiling panel 61 and the second ceiling panel 62 are folded to each other as shown in FIG. 11B. 66 is made to face and abut. Further, the dowel 68 is passed through the large-diameter hole portion of the connecting metal fitting 80, and the fitting portion 81 of the connecting metal fitting 80 is connected to the first ceiling panel 61 and the U-shaped folded portion 66 as shown in FIG. 10C. Fit inside.

Then, as shown in FIG. 11E, the connecting fitting 80 is slid along the U-shaped folded portion 66 of the first ceiling panel 61 from the state of FIG. 11D. Then, as shown in FIG. 11(e), the dowel 68 is prevented from coming out of the narrow hole of the connecting fitting 80, whereby the first ceiling panel 61 and the second ceiling panel 62 are connected to each other. ..

Further, conventionally, there is known a structure in which a slit is provided in a part of a reinforcing member and a ceiling is connected using a connecting fitting (see Patent Document 1). Specifically, in Patent Document 1, the pair of ceiling panel units have respective one end edge side bent portions fitted to each other, and a reinforcing member is inserted into one end edge side bent portion of one ceiling panel unit to be disposed, A configuration is disclosed in which a bolt of a connection fitting inserted in a long hole is tightened and one ceiling panel unit is pulled to connect to the other ceiling panel unit.

Further, there is known a structure in which roof plates are connected by using a reinforcing material such as a trust beam (see Patent Document 2).

JP-A-9-317218 Japanese Unexamined Patent Publication No. 9-256586

Conventionally, the thickness of the ceiling panel including the ceiling backing material is, for example, about 20 mm, but in recent years, by reducing the thickness dimension of the ceiling panel including the ceiling backing material to make the entire ceiling panel thinner, the material There is a demand for easy installation and compact installation according to the installation environment of the bus unit.

Therefore, it is conceivable that the ceiling backing base material is a gypsum board, and the thickness of the ceiling panel including the ceiling backing base material is, for example, from a conventionally used polystyrene foam plate of about 20 mm to a plaster board of about 10 mm.

However, when the ceiling panel is made thin in this way, the weight of the ceiling backing material is added, the strength of the entire ceiling panel is reduced, and downward bending is likely to occur. In particular, in the connecting portion of the two ceiling panels, such bending may cause loosening of the connection.

An object of the present invention is to realize a ceiling connecting structure capable of suppressing bending even if the ceiling panel is thin.

By the way, in the conventional ceiling connecting structure shown in FIGS. 10 and 11, the dowel 68 having the conical head 69 fixed to the frame 76 is provided at the folded portion 66 of the first ceiling panel 61 and the second ceiling panel 62. Since it has a structure in which the first ceiling panel 61 and the second ceiling panel 62 are horizontally projected, the folded-back portions 66 of the first ceiling panel 61 and the second ceiling panel 62 need to have a certain width in the height direction.

However, if the folded-back portion 66 becomes thicker than the thickness of the ceiling back substrate 63, the stackability deteriorates. Here, "stackability" means the ability to stack ceiling panels in an orderly and stable manner.

For example, when stacking and transporting ceiling panels or when stacking and storing them in a storage warehouse, it is necessary to stack the ceiling panels in an orderly and stable manner from the viewpoint of transport work, storage, and safety. If a part of the ceiling panel protrudes upward, it becomes an obstacle and it is not possible to stack it in order, and it tilts in the vertical direction, resulting in unstable stacking and stackability. Deteriorate.

Considering such stackability, the folded-back portion of the ceiling panel preferably has a height equal to or less than the thickness of the ceiling lining base material so as not to project above the ceiling lining base material. The folded portion of the ceiling panel needs to have a sufficient height dimension for mounting the dowel.

In the above-described conventional ceiling connecting structure, the folded-back portions 66 of the first ceiling panel 61 and the second ceiling panel 62 have a height lower than that of the ceiling backing base material 63 itself. However, the size can be made sufficient for mounting the dowels 68 and providing the insertion holes 72 through which the conical heads 69 of the dowels 68 are inserted.

However, as described above, in response to the demand for thinning the ceiling panel including the ceiling backing material, in the conventional ceiling connecting structure shown in FIGS. 10 and 11, the folded portion of the ceiling panel is less than or equal to the thickness of the ceiling backing material. If the ceiling panel is thinned while maintaining the height of the ceiling panel, the height of the folded-back portion of the ceiling panel cannot be sufficient, so that it becomes difficult to attach the dowel 68, and the insertion hole 72 for inserting the conical head 69 of the dowel 68 is formed. There is a problem that it is difficult to provide.

It is a further object of the present invention to realize a ceiling connecting structure that can solve the two conflicting requirements of reducing the thickness of the ceiling panel and improving stackability as described above. ..

In order to solve the above-mentioned problems, the present invention provides a ceiling connecting structure formed by connecting a plurality of ceiling panels using a crosspiece, and a connecting portion in which the crosspiece is engaged with the connecting portion of the ceiling panel. The crosspiece is provided with a standing surface on one of the crosspiece and the connecting portion, and the slit is provided on the rising surface, and the insertion portion to be inserted into the slit part on the other of the crosspiece and the connecting portion. The ceiling connecting structure is provided in which the ceiling panel and the crosspiece are engaged by inserting the insertion portion into the slit portion.

The connection portion includes a folded-back portion formed in a substantially U-shape and a cutout portion, and the crosspiece includes a substantially U-shaped fitting portion that is fitted to the folded-back portion of the connection portion. Therefore, it is preferable that the crosspieces fitted to the respective ceiling panels are connected to each other to form the ceiling.

It is preferable that the fitting portions are provided at both ends of the crosspiece and the slit portions are provided inside the fitting portion.

According to the present invention, by connecting via the crosspiece, the crosspiece is reinforced, and the bending of the ceiling can be suppressed even if the ceiling panel is thin. Further, since the ceiling panel can be connected even if the U-shaped folded-back portion of the ceiling panel has a height equal to or less than the thickness of the ceiling backing material, the stackability is not impaired.

It is a figure explaining the Example of the connection structure of the ceiling which concerns on this invention, Comprising: It is a perspective view which shows the ceiling which consists of the 1st panel and the 2nd panel which are connected. It is a figure explaining Example 1 of the connection structure of the ceiling which concerns on this invention, (a) is a perspective view which shows the 1st panel connected, (b) is a principal part enlarged view of (a). is there. (A) is a perspective view showing a first crosspiece used in Example 1, and (b) is an enlarged view of a main part of (a). In Example 1, the state which assembled the 1st crosspiece in the connection part of the 1st ceiling panel is shown, (a) is a partial perspective view, (b) is a partial sectional view. In Example 1, (a) is a perspective view showing a state in which the first rail member and the second rail member are assembled to the first ceiling panel and the second ceiling panel, respectively, and are arranged to face each other. , (B) is a cross-sectional view showing a ceiling connecting structure in which a first ceiling panel and a second ceiling panel are connected. It is a figure explaining Example 2 of the connecting structure of the ceiling which concerns on this invention, (a) is a perspective view which shows the 1st panel (2nd panel also has the same structure) connected, (b) is. It is a perspective view which shows the principal part of a crosspiece. In Example 2, (a) is a cross-sectional view of the U-shaped folded-back portion of FIG. 6(a), (b) is a side view of FIG. 6(b), and (c) is a crosspiece assembled. It is sectional drawing which shows the state which has arrange|positioned the 1st ceiling panel and the 2nd ceiling panel facing each other, (d) is the connection structure of the ceiling which connected the 1st ceiling panel and the 2nd ceiling panel. It is sectional drawing shown. It is a figure explaining the modification 1 of Example 2, (a) is a sectional view of the 1st ceiling panel (2nd ceiling panel), and (b) is a sectional view of the crosspiece used for modification 1. FIG. 6C is a perspective view of a crosspiece used in Modification 1, and FIG. 7D is a cross-sectional view showing a state in which the first ceiling panel and the second ceiling panel are connected. It is a figure explaining the modification 2 of Example 2, (a) is sectional drawing of the 1st crosspiece used for a modification, and the 2nd crosspiece, (b) is the 1st ceiling panel ( It is the figure which looked at the connection part of the 2nd ceiling panel) from the ceiling back base material side, and a two-dot chain line (imaginary line) shows a ceiling back base material, (c) is the 1st which assembled the crosspiece respectively. It is sectional drawing which shows the state which has arrange|positioned the ceiling panel and the 2nd ceiling panel mutually mutually, (d) is sectional drawing which shows the connection structure of the ceiling which connected the 1st ceiling panel and the 2nd ceiling panel. is there. It is a figure explaining the connecting structure of the ceiling of a prior art example, (a) is a perspective view which shows the cross section of the connection part of two ceiling panels connected mutually, (b) is screwed by the frame and the frame. It is a perspective view which shows a dowel, and (c) is a perspective view of a connection metal fitting. It is a figure explaining the connecting structure of the ceiling of the said prior art example through an assembling process, and (a)-(e) is a figure explaining the assembling process.

A mode for carrying out a ceiling connecting structure according to the present invention will be described below based on embodiments with reference to the drawings.

(Example 1)
A first embodiment of a ceiling connecting structure according to the present invention will be described with reference to FIGS. In the present embodiment, a ceiling connecting structure 4 for connecting the first ceiling panel 2 and the second ceiling panel 3 to each other, which is a constituent member of the ceiling 1 such as the unit bath shown in FIG. 1, will be described.

As shown in FIGS. 1 and 2(a) and 2(b), the first ceiling panel 2 has a ceiling back surface made of gypsum board or the like on the back surface (upper surface of the first ceiling panel 2) when viewed from the bathroom. A base material 7 is provided. A connection portion 8 (connection end portion) where the first ceiling panel 2 is connected to the second ceiling panel 3 is provided with a connection portion 9 with which a first crosspiece 21 described later is engaged.

As shown in FIGS. 2(a) and 2(b), the connecting portion 9 has a folded-back portion in which a section is folded back in a U-shape in a part in the longitudinal direction (a “U-shaped folded-back portion described later”). 12") is formed, and a key-shaped notch 13 is formed at another portion in the longitudinal direction.

In the first embodiment, as shown in FIGS. 2A and 2B, U-shaped folded-back portions 12 are formed at both ends of the connection portion 9 in the longitudinal direction. Then, key-shaped notches 13 are formed on the inside (center side) in the longitudinal direction of the U-shaped folded portions 12 at both ends.

A U-shaped folded portion 12 is further formed on the inner side (center side) of the key-shaped notch portion 13 on both sides. The U-shaped folded-back portion 12 has a vertical portion 14 and a horizontal top portion 15, as shown in FIG.

In the U-shaped folded-back portion 12 on the center side, the top portion 15 is provided so as to function as an insertion portion to be inserted into the slit portion 28 of the first crosspiece 21, which will be described later. In the book, it is particularly referred to as the insertion portion 16.

By the way, the cross section perpendicular to the longitudinal direction of the vertical portion 14 and the top portion 15 of the U-shaped folded-back portion 12 is in the shape of a key, that is, the key-shaped notch portion 13 is in the U-shaped folded-back portion. Since the vertical portion 14 and the top portion 15 of the portion 12 are partially cut out, they are referred to as “key-shaped cutout portions” in the present specification.

The above-described configuration of the first ceiling panel 2 is the same as that of the second ceiling panel 3, and thus the description of the configuration of the second ceiling panel 3 is omitted here. The first ceiling panel 2 and the second ceiling panel 3 are connected to each other at the connecting portion 8 by the ceiling connecting structure 4 of the present invention.

In this ceiling connection structure 4, the first ceiling panel 2 and the second ceiling panel 3 are assembled by connecting the first crosspiece member 21 and the second crosspiece member 22 to the connecting portion 9, respectively. The first crosspiece 21 and the second crosspiece 22 are connected to each other by a screw 32 described later (see FIG. 5B).

Since the first crosspiece 21 and the second crosspiece 22 have substantially the same configuration, the first crosspiece 21 will be described here with reference to FIGS. 3A and 3B. The first crosspieces 21 are formed with fitting portions 23 having U-shaped cross sections perpendicular to the longitudinal direction on both sides in the longitudinal direction, and between the fitting portions 23 on both sides (in the longitudinal direction). A central portion 24 is formed on the central side).

The both-side fitting portions 23 of the first crosspiece 21 correspond to the U-shaped folded-back portions 12 at both ends of the first ceiling panel 2 and have substantially the same length. It is formed so as to be fitted into the U-shaped folded-back portions 12 at both ends (see FIGS. 4A and 4B).

As shown in FIGS. 3A and 3B, the central portion 24 of the first crosspiece 21 has an L-shaped cross section perpendicular to the longitudinal direction, and rises vertically from the bottom surface 26 and one end of the bottom surface 26. It has a raised surface 27. On the standing surface 27, a slit portion 28 that extends horizontally along the longitudinal direction is formed. The slit portion 28 is formed at the same height as the insertion portion 16 of the first ceiling panel 2.

The slit portion 28 is slightly larger than the length and thickness of the insertion portion 16 in the longitudinal direction so that the insertion portion 16 of the first ceiling panel 2 can be inserted (see FIGS. 4A and 4B ). It is formed with an opening size having a length in the longitudinal direction and a vertical width.

In the first embodiment, one slit 28 is provided at the center of the standing surface 27 of the first crosspiece 21. However, although not shown, the slit 28 is not limited to one, and a plurality of slits may be provided on the standing surface 27 of the first crosspiece 21 along the longitudinal direction. In that case, the insertion portion 16 of the first ceiling panel 2 is divided into a plurality of portions in the longitudinal direction corresponding to the plurality of slit portions, and is provided via a plurality of key-shaped notches.

On the standing surface 27 of the first crosspiece 21, as shown in FIGS. 3A and 3B, holes 29 for screw fixing are formed on both sides of the slit portion 28. The screw fixing hole of the first crosspiece 21 is a threaded hole in which a screw is cut. Although not shown, the screw fixing hole 29 (see FIG. 5A) of the second crosspiece 22 is a screw insertion hole for simply inserting a screw.

Although not shown, depending on the direction in which the screw is inserted, the screw fixing hole 29 of the first crosspiece 21 is a screw insertion hole, and the screw fixing hole of the second crosspiece 22 is a screw. It may be a threaded hole that is cut.

(Ceiling connection structure and its assembly process)
The ceiling connecting structure 4 for connecting the first ceiling panel 2 and the second ceiling panel 3 will be described below through the assembling process.

First, with respect to the first ceiling panel 2 and the second ceiling panel 3, the first rail member 21 and the second rail member 22 are engaged and assembled to the respective connecting portions 9. Since the step of assembling the first crosspiece 21 to the first ceiling panel 2 and the step of assembling the second crosspiece 22 to the second ceiling panel 3 are the same, here, the first ceiling panel 2 is used. The step of assembling the first crosspiece 21 will be described.

The first crosspiece 21 is brought closer to the connection portion 9 from the ceiling backing base material 7 side of the first ceiling panel 2, and the insertion portion 16 of the first ceiling panel 2 is inserted into the slit portion 28 of the first crosspiece 21. And the fitting portion 23 of the first crosspiece 21 is fitted into the U-shaped folded-back portion 12 of the first ceiling panel 2.

As a result, the portions on both sides of the standing surface 27 of the first crosspiece 21 in the longitudinal direction are fitted into the cutout portions 13 on both sides of the first ceiling panel 2 and are engaged with the U-shaped folded portion 12. The movement of the first crosspiece 21 in the longitudinal direction is restricted. In this way, as shown in FIGS. 4A and 4B, the first crosspiece 21 is engaged and assembled to the connecting portion 9 of the first ceiling panel 2.

As shown in FIG. 5( a ), the first ceiling panel 2 having the first crosspieces 21 attached thereto and the second ceiling panel 3 having the second crosspieces 22 similarly attached thereto are separated from each other. The connecting portions 9 face each other, and the standing surface 27 of the first crosspiece 21 and the standing surface 27 of the second crosspiece 22 are arranged so as to face each other and abut.

Then, the screw 32 is passed through the screw fixing hole 29 (screw insertion hole) of the second crosspiece 22, and is further screwed into the screw fixing hole 29 (screw cut hole) of the first crosspiece 21. As shown in FIG. 5(b), the standing surface 27 of the first crosspiece 21 and the standing surface 27 of the second crosspiece 22 are joined together to connect the first crosspiece 21 and the second crosspiece 22. ..

As a result, the U-shaped folded portion 12 and the standing surface 27 of the first crosspiece 21 and the U-shaped folded portion 12 and the standing surface 27 of the second crosspiece 22 are in contact with each other. Then, the first ceiling panel 2 and the second ceiling panel 3 are connected to each other.

According to the ceiling connecting structure 4 as described above, the first crosspiece member 21 and the second crosspiece member 22 are assembled to the connecting portions 9 of the first ceiling panel 2 and the second ceiling panel 3, respectively. Even if the first ceiling panel 2 and the second ceiling panel 3 are made thinner than in the conventional case, since the first ceiling member 21 and the second ceiling member 22 are reinforced, the bending can be suppressed.

Further, in the ceiling connecting structure 4 of the present invention, even if the first ceiling panel 2 and the second ceiling panel 3 are thinned, the dowel 68 or the like is not used unlike the conventional example shown in FIGS. 10 and 11. Therefore, the U-shaped folded-back portion 12 and the insertion portion 16 of the connection portion 9 may have a height lower than the thickness of the ceiling back base material 7.

Moreover, even if the first crosspiece 21 and the second crosspiece 22 necessary for the connection have a size higher than the thickness of the ceiling backing base material 7, the first crosspiece 2 and the second crosspiece 22 are respectively installed at the construction site. It may be assembled by engaging with the connecting portion 9 of the ceiling panel 3.

Therefore, since the first ceiling panel 2 and the second ceiling panel 3 do not have a portion protruding higher than the thickness of the ceiling backing base material 7 during transportation, storage, etc., stackability during transportation, storage, etc. Does not spoil.

Furthermore, in the ceiling connecting structure 4 of the present invention, as in the conventional example shown in FIGS. 10 and 11, in the U-shaped folded portion 66 of the first ceiling panel 61 and the second ceiling panel 62. Since the connecting fitting 80 to be slid is not necessary, the first ceiling panel 2 and the second ceiling panel 3 are not struck, and the design is not impaired.

(Example 2)
Second Embodiment A ceiling connecting structure according to a second embodiment of the present invention will be described with reference to FIGS. Since the ceiling connecting structure 34 of the second embodiment is substantially the same as the connecting structure 4 of the first embodiment, mainly different configurations will be mainly described below. In the second embodiment, the same reference numerals are used for the parts having the same or the same structure as the first embodiment.

Since the first ceiling panel 35 and the second ceiling panel 36 connected by the ceiling connecting structure 34 of the second embodiment have the same configuration, the first ceiling panel 35 will be described here. Similar to the first ceiling panel 2 of the first embodiment, the first ceiling panel 35 of the second embodiment, as shown in FIG. 6A, has a connecting portion 39 in which a crosspiece engages with the connecting portion 38. Have.

U-shaped folded-back portions 12 are formed at both ends in the longitudinal direction of the connecting portion 39, as in the first embodiment, and between the U-shaped folded-back portions 12 at both ends (center side in the longitudinal direction). A standing surface 42 is formed on the. A slit portion 43 is formed at the center of the standing surface 42 in the longitudinal direction.

The slit portion 43 is formed at the same height as the insertion portion 49 of the crosspiece 47 described later. Holes 44 (screw cut holes or screw insertion holes) for fixing screws are formed on both sides of the slit portion 43.

As shown in FIG. 7A, the height of the standing surface 42 of the connecting portion 39 of the second embodiment is set to be equal to or lower than the height of the ceiling back base material 7. Accordingly, the height of the U-shaped folded-back portion 12 is also set to about 2/3 of the height of the standing surface 42.

In the second embodiment, as the crosspiece 47, one crosspiece 47 is used unlike in the first embodiment. Similar to the first crosspiece 21, the crosspiece 47 of the second embodiment, as shown in FIGS. 6B and 7B, has a fitting portion 23 having a U-shaped cross section at both ends in the longitudinal direction. Have.

The inside of the fitting portions 23 on both sides (from the center) is notched in a hook shape, and a notch portion 48 in a hook shape is formed. Further, between the key-shaped notches 48 on both sides (on the center side), an insertion portion 49 formed by being horizontally bent toward the second ceiling panel 36 side of the mating partner is formed.

The insertion portion 49 is formed at a height (a position at the same height as the slit portion 43) that can be inserted into the slit portion 43 formed on the standing surface 42 of the second ceiling panel 36, and the slit portion 43 is also formed. It is formed in such a length that it can be extended to the second ceiling panel 36 side after being inserted into.

In the second embodiment, the ceiling connecting structure 34 for connecting the first ceiling panel 35 and the second ceiling panel 36 will be described below through the assembling process thereof.

The crosspiece 47 is brought close to the ceiling backing base material 7 side of the first ceiling panel 35, and as shown in FIG. 7C, the insertion part 49 of the crosspiece 47 is inserted into the slit part 43 of the first ceiling panel 35. And the fitting portion 23 of the crosspiece 47 is fitted and assembled into the crosspiece 47 of the first ceiling panel 35.

Next, as shown in FIG. 7C, the first ceiling panel 35 to which the crosspiece 47 is assembled and the second ceiling panel 36 are arranged so that their connecting portions 39 face each other. Then, while inserting the crosspiece 47 of the first ceiling panel 35 into the slit portion 43 of the second ceiling panel 36, the first ceiling panel 35 and the second ceiling panel 36 are brought close to each other, and the U-shape of each other is provided. The folded portion 12 and the upright surface 42 face each other and abut.

Then, the screw 32 is inserted from the screw fixing hole (screw insertion hole) of the second ceiling panel 36, and is screwed into the screw fixing hole (screw cut hole) of the first ceiling panel 35. As a result, as shown in FIG. 7D, the standing surface 42 of the first ceiling panel 35 and the standing surface 42 of the second ceiling panel 36 are coupled and connected to each other. As a result, the first ceiling panel 35 and the second ceiling panel 36 are connected.

In order to completely prevent the cross member 47 from coming out of the ceiling connecting structure 34, for example, although not shown, the fitting portion of the cross member 47 is formed into a U-shape of the first ceiling panel 35. Such as a structure in which the top portion 15 of the folded-back portion 12 is fixed with a screw, or an insertion portion 49 of the crosspiece 47 is fixed to the top portion 15 of the U-shaped folded-back portion 12 of the second ceiling panel 36 with a screw. A configuration may be adopted.

According to the ceiling connecting structure 34 of the second embodiment assembled in this way, the connecting members 47 are reinforced by connecting them through the connecting members 47 as in the first embodiment, and the first ceiling panel 35 is formed. Therefore, even if the second ceiling panel 36 is thinned, the bending can be suppressed.

Also in the ceiling connection structure 34 of the second embodiment, the connecting portion 39 between the first ceiling panel 35 and the second ceiling panel 36, especially the standing surface 42, is set to a height not more than the thickness of the ceiling backing base material 7. By doing so (see FIGS. 7(a) and 7(c), etc.), there is no portion protruding from the ceiling back base material 7, and thus the stackability is not impaired.

Further, similar to the first embodiment, the dents generated in the conventional example shown in FIGS. 10 and 11 do not occur, so that the designability is not impaired.

In the second embodiment, the connecting portion 39 between the first ceiling panel 35 and the second ceiling panel 36 is set to have a height equal to or lower than the thickness of the ceiling backing base material 7. However, the U-shaped folded portion of the ceiling panel is used. Even if 12 is slightly thicker than the thickness of the under-ceiling base material 7, the stacking property is slightly lowered, but it is a configuration that is sufficiently useful as a ceiling connecting structure that suppresses bending.

(Modification 1 of Embodiment 2)
A first modification of the second embodiment will be described with reference to FIG. In the second embodiment, the slit portion 43 is provided on the standing surface 42 above the U-shaped folded-back portions 12 of the first ceiling panel 35 and the second ceiling panel 36, and the crosspiece 47 is inserted into the slit portion 43. The insertion portion 49 is also provided above the U-shaped folded portion 12 (see FIG. 7D).

On the other hand, in the first modification of the second embodiment, as shown in FIG. 8A, the slit portion 43 is formed in a U-shape of the first ceiling panel 35 (and the second ceiling panel 36). Below the folded-back portion 12, it is provided on the standing surface 42, and the insertion portion 49 of the crosspiece 47 is at the same height as the top portion of the fitting portion 23, as shown in FIGS. 8B and 8C. The configuration is lower than that of the second embodiment.

With such a configuration, when the insertion portion 49 of the crosspiece 47 is inserted into the slit portions 43 of the first ceiling panel 35 and the second ceiling panel 36, as shown in FIG. It is located below the top portion 15 of the U-shaped folded portion 12 when viewed.

According to the configuration of the first modification of the second embodiment, the slit portions 43 of the standing surface 42 of the first ceiling panel 35 and the second ceiling panel 36 are as shown in FIG. 8A of the first embodiment. However, it is not necessary to form it above the U-shaped folded portion 12.

Therefore, it is possible to reduce the height of the standing surface 42 as compared with the second embodiment. As a result, it is possible to further reduce the thickness of the first ceiling panel 35 and the second ceiling panel 36 including the ceiling back base material 7.

(Modification 2 of Embodiment 2)
In the second embodiment, the crosspiece 47 is attached only to the first ceiling panel 35, but a ceiling connection structure may be used in which the crosspiece is also attached to the second ceiling panel 36. Such a ceiling connecting structure 51 will be described as a second modification of the second embodiment with reference to FIG. 9.

The second modification of the second embodiment is substantially the same as the second embodiment, but a second crosspiece 54 is provided as a crosspiece in addition to the first crosspiece 52 having substantially the same configuration as that of the second embodiment. In comparison with the second embodiment, the configuration is such that the upper and lower opening widths of the slit portions 56 formed on the standing surface 42 of the first ceiling panel 35 and the standing surface 42 of the second ceiling panel 36 are large. Differ.

The first crosspiece 52 and the second crosspiece 54 in the second modification of the second embodiment have substantially the same configuration as the crosspiece 47 of the second embodiment, but as shown in FIG. , The height h2 of the second insertion portion 55 of the second crosspiece 54 is made higher than the height h1 of the first insertion portion 53 of the first crosspiece 52, and The height of the lower surface of the insertion portion 55 is such that it abuts on the upper surface of the insertion portion 53 of the first crosspiece 52 (see FIG. 9D).

Further, at least the length of the first insertion portion 53 is made shorter than that of the insertion portion 49 of the crosspiece 47 of the second embodiment. Specifically, in the ceiling connecting structure 51 shown in FIG. 9D, the first insertion portion 53 is inserted from the slit portion 56 of the first ceiling panel 35 to the slit portion 56 of the second ceiling panel 36. However, the length of the second ceiling panel 36 is set such that it does not protrude outside from the slit portion 56 of the second ceiling panel 36. This prevents the tip of the first insertion portion 53 from interfering with the second insertion portion 55.

The vertical opening widths of the slit portions 56 formed on the standing surface 42 of the first ceiling panel 35 and the standing surface 42 of the second ceiling panel 36 are the same as those of the insertion portion 53 of the first crosspiece 52 and the second opening portion. The dimensions of the crosspiece 54 are such that they can be inserted together while the insertion portions 55 are in contact with each other.

In order to assemble the ceiling connecting structure 51, first, as shown in FIG. 9C, the first rail member 52 is fitted to the U-shaped folded-back portion 12 of the first ceiling panel 35. While fitting the part 23, the first insertion part 53 is inserted into the slit part 56 of the first ceiling panel 35.

Similarly, the fitting portion 23 of the second crosspiece 54 is fitted into the U-shaped folded-back portion 12 of the second ceiling panel 35, and the second insertion portion 55 is fitted into the second ceiling panel. The slit portion 56 of 35 is inserted.

In this way, the first crosspiece member 52 and the second crosspiece member 54 are assembled to the first ceiling panel 35 and the second ceiling panel 36, respectively (see FIG. 9C). In this state, the insertion portion 53 of the first crosspiece 52 projects through the slit portion 56 of the first ceiling panel 35, and the insertion portion of the second crosspiece 54 passes through the slit portion 56 of the second ceiling panel 36. 55 is protruding.

Then, as shown in FIG. 9D, the connection portion 39 of the first ceiling panel 35 and the connection portion 39 of the second ceiling panel 36 are opposed to each other and brought close to each other, and the first insertion portion 53 is moved to the second insertion portion 53. It is inserted into the slit portion 56 of the ceiling panel 36. Further, the second insertion portion 55 is inserted into the slit portion 56 of the first ceiling panel 35.

In this way, the connection portions 39 of the first ceiling panel 35 and the second ceiling panel 36 are brought into contact with each other, and although not shown, the screw 32 is provided with the hole 44 for fixing the screw of the second ceiling panel 36. It is inserted through the (screw insertion hole) and screwed into the screw fixing hole 44 (screw cut hole) of the first ceiling panel 35.

Then, as shown in FIG. 9D, the standing surface 42 of the first ceiling panel 35 and the standing surface 42 of the second ceiling panel 36 are connected to each other. As a result, the first ceiling panel 35 and the second ceiling panel 36 are connected.

According to the ceiling connecting structure 51 of the modified example 2 of the second embodiment as described above, in addition to the effect of the second embodiment, the first crosspiece 52 and the second crosspiece 54 are provided, so that more effective reinforcement can be achieved. Therefore, the bending of the ceiling can be suppressed more effectively.

Although the form for carrying out the ceiling connecting structure according to the present invention has been described above based on the embodiments, the present invention is not limited to such embodiments and is described in the scope of claims. It goes without saying that there are various embodiments within the scope of technical matters.

Since the ceiling connecting structure according to the present invention is configured as described above, it is applicable not only to connecting ceiling panels of bathrooms such as unit baths, but also to connecting ceiling panels of assembled buildings, sheds, etc. ..

1 Ceiling 2 1st Ceiling Panel 3 2nd Ceiling Panel 4 Ceiling Connection Structure 7 Ceiling Base Material of 1st Ceiling Panel and 2nd Ceiling Panel
8 Connection part of 1st ceiling panel and 2nd ceiling panel 9 Connection part of 1st ceiling panel and 2nd ceiling panel 12 U-shaped folding part of connection part 13 Key-shaped notch of connection part Part 14 Vertical part of U-shaped folded part 15 Top part of U-shaped folded part 16 Insertion part of connection part 21 First cross member 22 Second cross member 23 First cross member and second cross member Fitting part of crosspiece 24 Central part of first crosspiece and second crosspiece 26 Bottom surface of central part 27 Standing face of central part 28 Slit part of standing face 29 Hole for fixing screw of standing face 32 Screw 34 Ceiling connection structure 35 First ceiling panel 36 Second ceiling panel 38 Connection portion between first ceiling panel and second ceiling panel 39 Connection portion between first ceiling panel and second ceiling panel 42 First Standing surface of the ceiling panel and the second ceiling panel 43 Slits on the standing surface 44 Holes for fixing screws on the standing surface 47 Crosspieces 48 Key-shaped cutouts of crosspieces 49 Crosspiece insertion parts 51 Ceiling connection structure 52 First Crosspiece 53 53 First Crosspiece Insertion Part 54 Second Crosspiece 55 55 Second Crosspiece Insertion Part 56 Slit on Standing Face of First Crosspiece 61 First Ceiling Panel
62 Second Ceiling Panel
63 Base material behind the ceiling of the first ceiling panel and the second ceiling panel
66 U-shaped folded portions of the first ceiling panel and the second ceiling panel
67 Vertical part of the folded part
68 Dowel
69 Dowel conical head
70 Dowel screw part
72 First ceiling panel insertion hole
73 Insertion hole for second ceiling panel
76 frames
77 Frame vertical part
78 frame screw holes
80 connection metal fittings
81 Fitting part of connecting fitting
82 Engagement long hole of connecting fitting

Claims (3)

A ceiling connecting structure formed by connecting a plurality of ceiling panels using a crosspiece, wherein the connecting part of the ceiling panel is provided with a connecting portion with which the crosspiece engages, and either the crosspiece or the connecting portion is connected. One side has a standing surface, the standing surface is provided with a slit portion, and the other of the crosspiece and the connecting portion is provided with an insertion portion to be inserted into the slit portion. The ceiling connecting structure is characterized in that the ceiling panel and the crosspiece are engaged with each other by being inserted. The ceiling connecting structure according to claim 1, wherein the connecting portion includes a folded-back portion formed in a substantially U shape, and a cutout portion, and the crosspiece fits into the folded-back portion of the connecting portion. A connecting structure for ceilings, characterized in that the ceiling members are provided with mating U-shaped fitting portions to be joined together, and the crosspieces fitted to the respective ceiling panels are connected to form a ceiling. The ceiling connecting structure according to claim 2, wherein fitting portions are provided at both ends of the crosspiece, and slit portions are provided inside the fitting portions. ..

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