JPS6120902Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a suspended ceiling in which a ceiling material is placed on a horizontal piece of a ceiling hanging bracket having an inverted T-shaped cross section. This relates to a structure that is attached to a horizontal piece of metal fittings.

Conventionally, in order to attach a hanging device to such a suspended ceiling, as shown in FIG. A structure is widely used in which a U-shaped folded part 5 is formed for fitting with the horizontal piece 2, and the horizontal piece 2 is elastically held between the folded part 5 and the rectangular plate 3 as shown in FIG. There is. However, this structure has the disadvantage that the clamping force is weak and it easily comes off with a slight vibration.In addition, in order to clamp the horizontal piece 2 strongly, the U-shaped folded part 5 and the rectangular plate 3 are If the distance is narrowed, the contact area between the horizontal piece 2 of the ceiling hanging bracket and the rectangular plate 3 is large, resulting in a drawback that the lower surface of the horizontal piece 2 is scratched over a wide range. On the other hand, in the case of a device having a springy engagement piece 8 as shown in FIG. 2, the advantage is that since the engagement piece 8 is engaged with the end of the horizontal piece 2, it is difficult to dislodge even with a slight vibration. However, it is extremely inconvenient when removed, and when attached, the lower surface of the horizontal piece 2 is rubbed by the upper end of the engaging piece 8, resulting in very unsightly scratches. The present invention aims to eliminate such drawbacks of the conventional example.

The configuration of the present invention will be described below with reference to the illustrated embodiment. As shown in FIGS. 4 and 5, the center of the lower surface of a rectangular plate 3 having approximately the same width as the horizontal piece 2 of the ceiling hanging bracket 1 having an inverted T-shaped cross section. A hanging device 4 is fixedly installed in the rectangular plate 3.
A U-shaped folded part 5 for fitting with the horizontal piece 2 is formed at the ends of the long sides in mutually opposite directions, and a ring-shaped convex rib 6 is formed at the center of the upper surface of the rectangular plate 3,
A horizontal piece 2 of the ceiling hanging fitting 1 is elastically held between a ring-shaped convex rib 6 and a U-shaped folded part 5, and a ceiling material 7 is placed on the horizontal piece 2.
The hanging tool 4 is fixed here by welding or caulking, but the hanging tool 4 is fixed so that the upper end 9 of the hanging tool 4 does not protrude above the upper end of the ring-shaped convex rib 6. A recess is provided at the installation position as shown in FIG. 4b. Such recesses, ring-shaped ribs 6, etc. are formed by press working.

Next, FIG. 6 shows the operation when attaching the rectangular plate 3 for attaching the hanging device to the horizontal piece 2. As shown in the figure, the U provided at the two corners of the rectangular plate 3
After inserting the horizontal piece 2 of the ceiling suspension fitting 1 between the letter-shaped folded parts 5, 5, the rectangular plate 3 is attached to the horizontal piece 2 by rotating the rectangular plate 3 in the direction of the arrow. In this way, the lower surface of the horizontal piece 2 is only scratched at the part that comes into contact with the ring-shaped convex rib 6, so even if the elastic clamping force by the U-shaped folded part is sufficiently strong, it will not be damaged like in the conventional example. There is an advantage in that it is possible to prevent unsightly scratches from being formed over a wide range on the lower surface of the horizontal piece 2.

By the way, in this state, the rectangular plate 3 has no rotation stopper, so if the rectangular plate 3 rotates in the opposite direction to the arrow in FIG. 6, there is a risk that it will come off the horizontal piece 2. Therefore, as shown in the embodiment shown in FIG.
By folding back the side edges 11 of the horizontal piece 2 to the upper surface of the horizontal piece 2, a convex stepped portion 12 is formed on the upper surface of both side ends of the horizontal piece 2 at the edge of the folded portion, and a U-shaped folded portion 5 is formed.
The rectangular plate 3 is prevented from rotating in the direction opposite to the arrow in FIG. 6 by forming a rotation preventing protrusion 13 on the inner surface of the rectangular plate 3 to abut against the convex stepped portion 12. The ceiling suspension fittings covered with the metal plate 10 used in this embodiment are not special, and are generally used to prevent the seam 14 exposed at the center of the horizontal piece 2 from being seen from below. It is something that In this embodiment, such a horizontal piece 2
The rectangular plate 3 is prevented from rotating by using the convex step portions 12 formed on the upper surface of both ends of the plate.
As shown in FIG. 7d, there is an advantage that a reliable rotation prevention effect can be obtained by simply forming a slight protrusion 13 on the U-shaped folded portion 5.

Furthermore, in the embodiment shown in FIGS. 8 to 11, a driver fitting groove 15 for removing the rectangular plate is formed on the lower surface of the rectangular plate 3 for fixing the hanger. 8th
The figure is a perspective view showing the appearance of the rectangular plate 3 provided with the driver fitting groove 15, and FIGS. 9 and 10 respectively show the attachment and removal operations of the rectangular plate 3. If you do like this, the first
As shown in Figure 0, insert the tip of the driver 16 into the fitting groove 1.
5 and rotate the driver 16, the rectangular plate 3 can be removed with a slight twisting force, and when the rectangular plate 3 is removed, the rectangular plate 3 engages with the tip of the driver 16. This has the advantage that the rectangular plate 3 will not fall. Note that if the length a of the driver fitting groove 15 is set slightly larger than the tip of the driver 16 as shown in FIG.
There is a practical advantage that the lower surface of the horizontal piece 2 is not damaged by the tip of the horizontal piece 2.

[Brief explanation of the drawing]

FIG. 1a is a perspective view of the conventional example, FIG. 1b is a side sectional view of the same, FIG. 2 is a perspective view of another conventional example, FIG. Fig. 4a is a perspective view of an embodiment of the present invention, Fig. 4b is a partially cutaway side sectional view of the same, Fig. 5 is a side sectional view of a ceiling hanging fitting to which the hanging fitting according to the invention is attached, and Fig. 6 is a side sectional view of an embodiment of the present invention. The figure is a bottom view of the same as above, FIG. FIG. 8 is a perspective view of still another embodiment of the present invention, and FIG. 9 is a perspective view of the above U-shaped bent piece. FIG. 10 is a perspective view of the horizontal piece with the tool attached, FIG. 11a is a side sectional view of the main part of the same, and FIG. 11b is a bottom view of the same. 1 is a ceiling hanging bracket, 2 is a horizontal piece, 3 is a rectangular board,
4 is a hanging tool, 5 is a U-shaped folded portion, 6 is a ring-shaped convex rib, and 7 is a ceiling material.

Claims (1)

[Scope of utility model registration request] A suspended ceiling is constructed by fixing a suspension device to the center of the underside of a rectangular plate of approximately the same width as the horizontal piece of a ceiling suspension fitting having an inverted T-shaped cross section, forming U-shaped folded portions at the opposite ends of the long sides of the rectangular plate for fitting into the horizontal piece, forming a ring-shaped convex rib in the center of the upper surface of the rectangular plate, elastically clamping the horizontal piece of the ceiling suspension fitting between the ring-shaped convex rib and the U-shaped folded portion, and placing a ceiling material on the horizontal piece.