JPS6224648Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a joint structure between the side faces of adjacent ceiling panels, such as the ends or edges of the ceiling panels. A relatively lightweight and highly rigid ceiling panel joint structure that allows ceiling panels to be joined in a stable posture without causing unevenness at the joints of the ceiling surfaces even when dirt has entered, as well as joints. It is an object of the present invention to provide a joint structure capable of preventing corner chipping of the lower edge of the upper surface of a ceiling board when assembling the fixture and the ceiling board.

As for the conventional joint structure of ceiling panels, the section surface H
A structure in which a locking blade part of the connecting tool is engaged with a locking groove recessed in the mutually opposing side surfaces of adjacent ceiling panels using a connecting tool such as a T-type, T-type, or Z-type. has been adopted. A typical structure thereof is shown in FIG. 5, but in many cases, in order to prevent installation failure due to dirt clogging, the thickness C of the locking wing part B of the connector A is Since the height F of the stop groove E is large, there is a drawback that the difference between the height F and the thickness C appears as an uneven part H on the ceiling surface G, and furthermore, as shown in FIG. There were drawbacks such as the unevenness K being further exacerbated by the joint J bending and falling down in the play gap under the weight of the ceiling board I.

This drawback is due to the fact that the back cut width W is larger than the thickness of the rising part of the joining tool, in order to absorb and eliminate installation problems caused by distortion etc. due to low processing accuracy of the joining tool A. It is further encouraged.

In order to eliminate these drawbacks, as shown in FIG. 7, a bulging slope part M is provided on the joint L, and the corner part O of the ceiling plate N is pressed downward by this slope part M. A structure that prevents unevenness has been proposed, but with this structure, processing errors in the joint L and ceiling plate N are concentrated on the ceiling surface P, and it is not effective in preventing unevenness. If the ceiling board is made of rock wool insulation board or semi-hard insulation board, the buckling resistance of the ceiling board is small;
If the corner portion O is pressed by the slope portion M as described above, it is difficult to obtain the effect of preventing unevenness as described above, and there are also drawbacks such as difficulty in preventing the joint tool from collapsing as shown in Fig. 6. have.

Therefore, the present invention has a structure described in the scope of the utility model registration claim, so that the ceiling surface is not uneven, the joints do not fall down, and a good ceiling surface structure can always be obtained. This has resulted in a lightweight and highly rigid joined structure for the plates.

The configuration of the illustrated example will be described below.

FIG. 1 is a cross-sectional view of the first embodiment of the present invention, in which ceiling panels 1 and 2 are arranged adjacent to each other.
As shown in FIG. 2, locking grooves 3 and 4 are recessed in the mutually opposing side surfaces to be joined, and the lower side surfaces 5 and 6 below the locking grooves 3 and 4 are Upper side surfaces 7 and 8 which are directly abutted and parallel to each other above the locking grooves 3 and 4 are opposed to each other with a predetermined back cut width Q.

The above-mentioned ceiling panels 1 and 2 are joined together using a joining tool 9 shown in FIG.

This connector 9 is manufactured by drawing light metal or the like or roll forming a thin plate, and has a structure as shown in FIG. 3.

That is, the connector 9 has a generally T-shaped cross section as a whole, and has locking wing portions 10 and 11 extending horizontally on both sides at the lower end. The thickness R of the locking wing pieces 10, 11 is set to be equal to or slightly shorter than the height S of the locking grooves 3, 4 of the ceiling plates 1, 2, and Wing piece part 10,1
1 is set slightly shorter than the depth of the locking grooves 3 and 4.

A locking straight wall portion 12 is erected from the center of the locking wing portions 10 and 11 of the connector 9, and side surfaces 14 and 1 parallel to each other are provided at the base of the locking straight wall portion 12.
A thick portion 13 having a diameter of 5 is formed.

This thick part 13 is hollow and has a rectangular cross section,
The thickness T is made equal to the back cut width Q between the upper surfaces 7 and 8 of the ceiling panels 1 and 2, and the thick part 13
The height U is set to the thickness of the upper side surfaces 7 and 8, that is, the size and the part that contacts a part of the height part V of the ceiling plate hanging portion.

The thick part 13 is formed into a hollow body having a square cross section and a hollow part 30, and the connecting part 29 between the thick part 13 and the locking wing parts 10 and 11 has a wall thickness smaller than the back cut width Q. has been done.

The ceiling panels 1 and 2 are joined by a joining tool 9 as shown in FIG.

That is, the locking wing parts 10 and 11 of the joint tool 9
are fitted into the locking grooves 3 and 4 of the ceiling panels 1 and 2 so that there is no play in the height S direction of the grooves, and both side surfaces 14 of the thick part 13 of the joint tool 9 are fitted in parallel to each other. ，
15 are brought into contact with the mutually opposing upper surfaces 7, 8 of the ceiling panels 1, 2, and the lower surfaces 5, 6 and upper surfaces 7, 8 of the ceiling panels 1, 2 are opposed to each other. The two sides are joined together. Gaps 31 and 32 are formed between the connecting portion 29 of the connector 9 and the upper surfaces 7 and 8 of the ceiling plates 1 and 2. These gaps 31 and 32 accommodate the dust when it enters the connection part, and the both sides of the thick part 13
4, 15 and the upper surfaces 7, 8 of the ceiling panels 1, 2 are prevented from being obstructed, and when the joint tool 9 and the ceiling panels 1, 2 are assembled, the lower edge of the upper surfaces 7, 8 This prevents chipping of parts 33 and 34, so-called corner chipping.

FIG. 4 shows a second embodiment of the present invention as a longitudinal section, and the joint 16 has a generally T-shaped cross section as a whole, but the locking wing portion 17,
Of the locking straight wall part 19 that stands up from the center of the ceiling plate 18, the part located within the height of the mutually parallel upper surfaces 22 and 23 of the ceiling plates 20 and 21, that is, the height of the ceiling plate hanging portion. , a thick part 2 having a square cross section
4 is formed, both side surfaces 25 parallel to each other,
26, the upper surfaces 22 and 23 are brought into contact with each other, and the operation is exactly the same as that of the embodiment shown in FIG.
The locking wing portion 1 is different from the first embodiment in that the upper portion of the locking wing portion 1 does not protrude from the back surface of the ceiling plates 20 and 21.
Since gaps 27 and 28 are formed between the upper surfaces of the thick wall portions 7 and 18 and the lower portion of the thick wall portion 24, the space between both side surfaces 25 and 26 of the thick wall portion 24 and the ceiling panels 20 and 21 may be clogged with dirt. This is the same as the first embodiment in that there is little possibility that the contact with the upper surfaces 22 and 23 will be disturbed.

The joint structure of the ceiling board according to the present invention has the configuration described above, and the connection structure of the ceiling board is tightly and without any play between the locking groove of the ceiling board and the upper side portion that is parallel to each other across the back cut width. Since the joints are arranged, the joints do not bend or fall down, and it is possible to always form a ceiling surface with no unevenness.

In addition, since the mutually parallel upper surfaces of the ceiling board are brought into contact with the mutually parallel surfaces of the thick part of the joint, the posture of the ceiling board and the joint is stable and reliable, and the joint is made by the weight of the ceiling board. The fittings do not fall down, and the fitting of the locking blades into the locking grooves secures the ceiling panels together, so even if the ceiling panels are joined to prevent unevenness, the ceiling panels will not buckle. Therefore, even ceiling boards such as rock wool insulation boards, which are relatively weak, can be joined well without any trouble.

In addition, since the connecting tool has a hollow, thick-walled section with a rectangular cross section formed in the locking straight wall, it becomes a relatively lightweight and highly rigid connecting tool, which increases the rigidity of the entire joining structure. The connection part between the flesh part and the locking wing part has a wall thickness thinner than the back cut width, and in the joined state, a gap is formed between the upper surface of the ceiling board and the connection part, and in this part, intrusion into the connection part occurs. Since the garbage, etc. that have been removed is accommodated, interference with the contact between both sides of the thick walled part of the connecting tool and the upper side of the ceiling board due to clogging with garbage can be effectively prevented, and the above-mentioned effects can always be guaranteed. It is something.

Furthermore, when assembling the joint and the ceiling board, the lower edge of the upper side of the ceiling board is located in the gap, so
There is also the effect of preventing the lower edge and corners from being chipped due to interference between the lower edge and the joining tool.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of the first embodiment, Fig. 2 is a partially sectional view showing only the ceiling panels adjacent to each other, and Fig. 3 is a partially sectional view showing only the joints. FIG. 4 is a vertical cross-sectional view of the second embodiment.
FIG. 5, FIG. 6, and FIG. 7 are longitudinal cross-sectional views showing different conventional ceiling board joining structures. 1, 2... Ceiling plate, 3, 4... Locking groove, 5, 6
...lower side, 7,8...upper side, 9...joint tool,
10, 11... Locking wing piece part, 12... Locking straight wall part, 13... Thick wall part, 14, 15... Both sides, 2
9... Connection part, 30... Hollow part, 31, 32...
Gap, Q...back cut width, V...height of ceiling plate hanging area.

Claims (1)

[Scope of utility model registration request] A locking groove is recessed in the mutually opposing side surfaces of the ceiling panels arranged adjacently, the lower surfaces below the locking groove are abutted against each other, and the mutually parallel upper surfaces above the locking groove are arranged in a predetermined manner. The back cut widths of the blades are opposed to each other, and the locking blade portions and
The locking straight wall part rising from the center of the locking wing part has a substantially T-shaped cross section. It is fitted into the groove so that there is no play in the groove height direction, and is formed at a height portion of the locking straight wall portion corresponding to a part of the height of the ceiling board hanging portion. Both mutually parallel side surfaces of a hollow thick-walled portion having a rectangular cross section and having a thickness equal to the back cut width face each other and are brought into contact with the parallel upper surfaces of the ceiling plate, so that the adjacently arranged The mutually opposing side surfaces of the ceiling plate are joined together, and the connecting portion between the thick wall portion and the locking wing piece portion has a thickness thinner than the back cut width, and the mutually opposing side surfaces of the ceiling plate are connected to each other. A joint structure of ceiling panels with a gap formed between them.