JPS6316722Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a structural material for ceiling joints that connects ceiling materials and closes the joints between both ceiling materials, which are fixed adjacently with joints provided at predetermined intervals. In particular, it relates to a fire-resistant structural material for ceiling joints that has fire-resistant properties.

Structural materials for ceiling joints that connect adjacent fixed ceiling materials by providing joints at predetermined intervals and that close the joints between both ceiling materials have traditionally been used, including materials that function as hanging tools for ceiling materials. Various methods have been proposed. In these conventional fire-resistant structural materials for ceiling joints, the metal is usually made of resin, etc., but because the fire resistance is insufficient, the ceiling material may fall in the event of a fire or leak from the joints into the ceiling. There were problems such as flames getting around, and no consideration was given to preventing the surface finishing material of the ceiling material from peeling off at the joints.

The present invention is a fireproof structural material for ceiling joints that solves the above-mentioned problems and has a function of preventing peeling of the surface finishing material, that is, joints 3 are provided at predetermined intervals and ceiling materials 1 and 1 are fixed adjacently. The ceiling materials 1, 1 are connected together and the ceiling materials 1, 1 are connected to each other, and the lower end portions are provided with insertion coupling portions 21, 21 inserted into the insertion portions 10, 10 drilled in the side end surfaces, respectively. In the fireproof structural material 2 for ceiling joints that closes the joint parts 3,
A hanging portion 26 that closes the joint portion 3 below the insertion portions 10, 10 is continuously provided below, and a portion 2 that includes at least the hanging portion 26 and the insertion coupling portion 21, 21.
The present invention provides a fireproof structural material for ceiling joints, characterized in that part 7 is made of a noncombustible material with low thermal conductivity.

Hereinafter, one embodiment of the fireproof structural material for ceiling joints of the present invention shown in the drawings will be described.

In the drawing, 1, 1 is a ceiling material mainly made of phenol foam, and asbestos paper and aluminum (iron) are sequentially coated on the entire outer surface of the phenol foam.
A foil is applied, and a surface material 11 made of vinyl chloride resin is applied to each side end surface and lower surface.
Further, elongated insertion portions 10, 10 are formed on the side end surfaces of the ceiling materials 1, 1, and the above-mentioned asbestos paper, aluminum foil and surface finishing material 11 are inserted into these portions.
is cut as shown in the figure, surface finishing material 1
1st grade is becoming easier to peel off.

Further, 2 is a fireproof structural material for ceiling joints of the present invention that connects the adjacent ceiling materials 1, 1 and closes the joint 3 between both ceiling materials 1, 1, and has a vertical main body 20.
The insertion portions 1 of the ceiling materials 1, 1 are placed on both sides of the lower end of the
0 and 10, respectively.
21, and the ceiling materials 1, 1 are provided on both sides of the middle part.
It is constructed by comprising restraining parts 22, 22 which respectively restrain the upper surface, and locking parts 23, 23 which are respectively latched to hanging fittings (not shown) on both sides slightly above the restraining parts 22, 22. These configurations are similar to conventional ones. Incidentally, in the case of the embodiment, the above-mentioned structure is constructed by mainly covering a bent metal plate 24 with a hard vinyl chloride resin 25 as shown in the drawing. Furthermore, the tip portions 2 of the holding portions 22, 22
2' and 22' are made of soft vinyl chloride resin, and are designed to improve airtightness and sound insulation at the joint 3 between the ceiling materials 1 and 1 during use.

Accordingly, in the present invention, as shown in the figure, below the insertion parts 10, 10, the hanging part 26 that closes the joint part 3 is provided continuously below the main body part 20, and at least the hanging part 26 and Plug-in coupling parts 21, 21
The portion 27 (T-shaped in cross section in the embodiment) including the portion 27 is made of a noncombustible material with low thermal conductivity. The noncombustible material with low thermal conductivity is preferably an inorganic noncombustible material with low thermal conductivity, and for example, GRC, FG, flexible plate, etc. can be used.

In addition, in the embodiment, the insertion coupling portions 21, 21
Although the noncombustible material 27 is partially covered and held by the metal plate 24 and the hard vinyl chloride resin 25 in the portion shown in FIG.

The fireproof structural material 2 for ceiling joints of the present invention having the above-described configuration is used for the joints 3 between the ceiling materials 1, which are fixed adjacently, with joints 3 provided at predetermined intervals as shown in the figure. That is, by inserting the insertion joint parts 21, 21 of the fireproof structural material for ceiling joints into the insertion parts 10, 10 of the ceiling materials 1, 1, and suppressing the upper surfaces of the ceiling materials 1, 1 with the restraining parts 22, 22, the ceiling Material 1,
1, and the hanging part 26 and the insertion joint parts 21 and 2.
1 and the holding parts 22, 22, and the fireproof structural material 2 for ceiling joints is closed by a hanging fitting (not shown) via the locking parts 23, 23.
The ceiling materials 1, 1 can be installed at a predetermined height by maintaining them at a predetermined height. According to the fireproof structural material 2 for ceiling joints of the present invention, since the portion 27 is made of a noncombustible material with low thermal conductivity, the fire resistance of the joint portion 3 can be improved, and the ceiling material 1, 1 can be prevented from falling for a certain period of time after a fire occurs, and flames can be prevented from going around to the ceiling. Further, since the joint portion 3 can be closed by the hanging portion 26, peeling of the surface finishing material 11 of the ceiling materials 1, 1 can be prevented.

As a precaution, the fireproof structural material 2 for ceiling joints of the present invention is a long body that continues in the direction perpendicular to the drawing, similar to this type of conventional fireproof structural material for ceiling joints. , is usually fixed by locking and fixing its both ends to beams or the like on a wall surface. Reference numerals 28 and 28 are means for fixing the T-shaped section 27.

As described above, the fire-resistant structural material for ceiling joints of the present invention has a lower portion made of a non-combustible material with low thermal conductivity that closes the joints between adjacent ceiling materials that are fixed together at a specified interval, and since metal plates, etc. are not exposed to the inside of the room, it is possible to improve the fire resistance and sound insulation performance of the joints. In particular, it is possible to prevent the ceiling material from falling for a certain period of time after a fire breaks out and to prevent flames from spreading into the attic. In addition, since the end of the surface finishing material of the ceiling material can be held down by the hanging part below the insertion part, it has great practical effects such as preventing the peeling of the surface material.

[Brief explanation of the drawing]

The drawing is a sectional view of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Ceiling material, 10... Insertion part, 2... Fireproof structure material for ceiling joints, 21... Insertion joint part, 26...
Drooping part, 27... part.

Claims (1)

[Scope of utility model registration request] Insert portions 1 are drilled into the side end surfaces of ceiling materials 1 and 1 that are fixed adjacent to each other with joints 3 at predetermined intervals.
Plug-in coupling parts 21 inserted into 0 and 10 respectively,
21 on both sides of the lower end of the ceiling joint fireproof structural material 2 that connects the ceiling materials 1 and 1 and closes the joint 3 between the ceiling materials 1 and 1, below the insertion portions 10 and 10. Drooping part 2 that closes the joint part 3 of
A fireproof structural material for ceiling joints, characterized in that at least a portion 27 including the hanging portion 26 and the insertion joint portions 21, 21 is made of a noncombustible material with low thermal conductivity.