JPH0673834A - Smoke preventing ceiling - Google Patents

Abstract

PURPOSE:To provide a ceiling panel, the end of which is hard to be separated from a smoke preventing finished material. CONSTITUTION:A locking groove 21 is provided on a smoke preventing finished material 10 for locking the end area 7a of a ceiling panel 7 and also holding the upper end of a smoke preventing hanging wall 12, and a locking projection 22 is provided on its lower part. The engaging part 34 of a presser bar spring 33 is resiliently engaged with the locking groove 21 and the locking projection 22 and the end area 7a of the ceiling panel 7 is pressed from above by the pressing part 36 of the presser bar spring 33. Thus, the end area of the ceiling panel 7 is made hard to be separated from the smoke preventing finished material 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smokeproof ceiling, and more particularly to a smokeproof finish having a smokeproof finishing material for locking an end of a ceiling panel and holding an upper end of a smokeproof hanging wall. It is about smoke ceilings.

[0002]

2. Description of the Related Art As a ceiling structure, a plurality of ceiling base materials are installed below a ceiling slab via hanging bolts.
It is known that a plurality of ceiling finishing materials are erected on these ceiling base materials and a ceiling panel divided into ceiling finishing materials is attached.

As a ceiling smoke-proofing means constructed in this way, a ceiling smoke-proofing wall is provided so as to partition the ceiling space above the ceiling panel, and a smoke-proofing finish is provided at the lower end of the ceiling smoke-proofing wall. A smoke-proof ceiling has been developed in which the end of the ceiling panel is locked via a material and the smoke-proof hanging wall is hung (see Japanese Patent Publication No. 53-7730).

[0004]

However, in the conventional smoke-proof ceiling of this type, the ceiling panel at the portion where the smoke-proof finishing material is located is cut and the end thereof is simply used as the smoke-proof finishing material. Since it was only stopped, there was a problem that the end part of the ceiling panel could easily come off from the smokeproof finishing material, and the desired smokeproof effect could not be fully exerted.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a smoke-proof ceiling in which the end portion of the ceiling panel does not easily come off from the smoke-proof finishing material.

[0006]

In order to achieve the above object, the smoke-proof ceiling of the present invention comprises a smoke-proof finishing material that locks the end of the ceiling panel and holds the upper end of the smoke-proof hanging wall. Assuming that the smoke-proof ceiling is provided, locking parts are provided on the upper and lower parts of the smoke-proof finishing material, and the end part of the ceiling panel is pressed and held from above by a holding spring that elastically engages with the locking part. It is characterized by doing.

In the present invention, the locking portion elastically engages the presser spring, and is formed by, for example, a locking groove that opens downward in the upper portion and a locking projection that stands from the horizontal portion in the lower portion. be able to.

[0008]

According to the smoke-proof ceiling of the present invention constructed as described above, the smoke-proof finishing material for locking the end portion of the ceiling panel and holding the upper end portion of the smoke-proof hanging wall is provided on the upper and lower portions of the smoke-proof finishing material. By providing the locking portion and elastically engaging the pressing spring with the locking portion, the pressing spring can be easily attached to the smokeproof finishing material. Further, since the end portion of the ceiling panel is pressed and held from above by the pressing spring, the end portion of the ceiling panel does not come off from the smokeproof finishing material.

[0009]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view of an example of the smokeproof ceiling of the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG.

In FIG. 1, reference numeral 1 denotes a ceiling slab, and a plurality of ceiling base materials 3 are installed below the ceiling slab 1 via suspension bolts 2. Hanging bolt 2 is ceiling slab 1
An H-shaped hanger 5 for suspending the ceiling base material 3 is attached to the lower end of the hanging bolt 2 by a pair of nuts 6 and 6 so that the height can be adjusted. Then, a ceiling panel 7 is attached to the lower portion of the ceiling base material 3 via a ceiling finishing material (not shown).

On the other hand, a ceiling smoke-proof wall 9 is provided in the ceiling space 8 above the ceiling panel 7 so as to partition it, and a smoke-proof finishing material 10 is provided at the lower end of the ceiling smoke-proof wall 9. An end 7a of the ceiling panel 7 is locked and a smoke-proof hanging wall 12 made of a glass plate or the like for partitioning a space 11 below the ceiling panel 7 is hung. Specifically, the ceiling smoke-proof wall 9 has a beam 13 made of shaped steel whose upper end is embedded in the ceiling slab 1, and a lower end 13a of the beam 13 having an upper end 14a attached thereto by welding. A smoke-proof base material 14 having a U-shaped cross section, a fixing bolt 15 for suspending the smoke-proof finish material 10 at a predetermined height from a lower end portion 14b of the smoke-proof base material 14, and a smoke-proof base material. It is mainly composed of a smoke proof plate 16 having an L-shaped cross section that shields between the smoke proofing material 14 and the smoke proof finishing material 10.

The beam 13, the smoke-proof base material 14, and the smoke-proof plate 1
6, the smokeproof finishing material 10 and the smokeproof hanging wall 12 are continuous in the direction perpendicular to the paper surface of FIG. The exposed portion of the beam 13 is covered with a refractory material 17. Smokeproof finish 10
As shown in FIG. 3, the upper plate 18 has an upper plate 18, a pair of side plates 19 and 19 that are slightly inwardly opposed to each other are formed in the lower part of the upper plate 18, and the lower plate 20 is provided in the lower part of the both side plates 19 and 19. , 20 are formed on the outside, respectively. Locking grooves 21 that open downward are formed on the lower surfaces of both sides of the upper plate 18.
A locking projection 22 that stands upright is formed on the outer side of the. On the inner surfaces of the both side plates 19, 19, there are formed upper ridges 23, 23 facing each other at substantially the center and lower ridges 24, 24 facing each other at the lower end.

The lower end flange portion 16b of the smoke proof plate 16 is abutted on the upper plate 18 of the smoke proof finishing material 10.
8 and the lower end flange portion 16b are fixed bolts 1 from below.
5 is inserted, and is fixed by the bolt head 15 a and the nut 25. The upper end of the fixing bolt 15 is inserted through the lower flange portion 14b of the smoke-proof base material 14 and is fixed by a pair of nuts 26, 26. The fixing bolt 15 allows the height of the smokeproof finishing material 10 to be adjusted. The upper end portion 16a of the smoke proof plate 16 is screwed to the smoke proof base material 14 after the height of the smoke proof finish material 10 is adjusted.
You can stop with.

Suspension rods 29 having locking portions 28 having a substantially T-shaped cross section are fixedly inserted through the smokeproof hanging wall 12 at appropriate intervals, and the locking portions 28 are used as the smokeproof finishing material 10. The smoke-proof hanging wall 12 is hung with the upper end positioned between the lower ridges 24, 24 by being locked to the upper ridges 23, 23. Reference numeral 30 is a sealing member that seals between the lower ridges 24, 24 and the smoke-proof hanging wall 12.

The ceiling panel 7 is formed of a metal plate or the like in the shape of an open box, and a sound absorbing / insulating material 31 such as glass wool is attached inside. A packing 32 is provided between the adjacent side portions 7b, 7b of the ceiling panel 7 as shown in FIG. The ceiling panel 7 is cut at a portion where the smokeproof finishing material 10 is located, and an end portion 7a thereof is locked (placed) on a locking projection 22 of a lower plate 20 of the smokeproof finishing material 10.

A press spring 33 for pressing the end portion 7a of the ceiling panel 7 from above is attached to the smokeproof finishing material 10. As shown in FIGS. 1, 4 and 5, the holding spring 33 includes an engaging portion 34 that is engaged between the upper plate 18 and the lower plate 20 of the smokeproof finishing material 10, and the engaging portion 34. The leaf spring is formed by bending so as to have a rising portion 35 that rises up from and a holding portion 36 that is inclined obliquely downward from the rising portion 35. The engaging portion 34 is the locking projection 22 of the lower plate 20.
End portion 34a that engages with the inside of the upper plate 18 and a convex portion 34b that engages with the locking groove 21 of the upper plate 18, and the space between them is bent so that they are engaged with each other by elastic force. A notch 34c is formed at the end 34b. Holding part 36
Presses the upper surface of the ceiling panel 7, that is, the upper surface of the sound absorbing / insulating material 31, and the tip end portion 36a is bent upward.

As described above, since the smokeproof finishing material 10 is provided with the pressing spring 33 for pressing the end portion 7a of the ceiling panel 7 from above, the ceiling panel 7 locked to the smokeproof finishing material 10 is provided. The end portion 7a of the is held by the spring force of the pressing spring 33, and it is difficult for the end portion 7a to come off from the smokeproof finishing material 10. The pressing spring 33 can be easily and inexpensively manufactured by simply bending the leaf spring, and has the engaging portion 34 that engages with the smoke-proof finishing material 10 by the elastic force. It can be installed securely.

[0018]

As described above, according to the smoke-proof ceiling of the present invention, the upper portion of the smoke-proof finishing material that locks the end portion of the ceiling panel and holds the upper end portion of the smoke-proof hanging wall and Since the locking portion is provided in the lower portion and the end portion of the ceiling panel is pressed and held from above by the pressing spring that elastically engages with the locking portion, the pressing spring can be easily attached to the smokeproof finishing material. At the same time, the ceiling panel can be securely locked to the smokeproof finishing material.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a smokeproof ceiling of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged cross-sectional view of a smokeproof finishing material used in the smokeproof ceiling of FIG.

FIG. 4 is a side view of a presser spring used in the smokeproof ceiling of FIG.

5 is a front view taken along the line BB of FIG.

[Explanation of symbols]

 7 Ceiling Panel 7a End 10 Smoke-proof Finishing Material 12 Smoke-proof Hanging Wall 21 Locking Groove (Locking Part) 22 Locking Protrusion (Locking Part) 33 Presser Spring 34 Locking Part 36 Pressing Part

Claims (1)

[Claims] 1. A smoke-proof ceiling provided with a smoke-proof finishing material that locks an end portion of a ceiling panel and holds an upper end portion of a smoke-proof hanging wall, wherein the upper and lower portions of the smoke-proof finishing material are engaged with each other. A smoke-proof ceiling characterized in that a stop portion is provided, and an end portion of the ceiling panel is pressed and held from above by a pressing spring that elastically engages with the locking portion.