JPH078686Y2 - Mounting structure of ceiling support bar to ceiling base bar - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a structure in which a ceiling support bar for supporting a ceiling plate is hung and mounted below a ceiling base bar by a hanger fitting.

[Prior Art] As shown in FIG. 5, the ceiling base bar 1 is made of a channel material and has a U-shaped cross section. The ceiling support bar 2 is an H-shaped member, and is arranged below the ceiling base bar 1 so that the web 2a has a vertical V-shaped cross section. The ceiling support bar 2 is orthogonal to the ceiling base bar 1, and the lower flange 1c of the ceiling base bar 1 and the ceiling support bar 2 are
The upper flange 2b is abutted. A concave groove 4 is formed in the edge of the ceiling plate 3 in the longitudinal direction, and the lower flange 2c of the ceiling support bar 1 is inserted into the concave groove 4 to support the ceiling plate 3 on the ceiling support bar 2. There is. The hanger fitting 5 as shown in FIG. 6 is arranged along the web 1a of the ceiling base bar 1, and the hook claw 6 at the lower end of the hanger fitting 5 is hooked and locked on the upper flange 2b of the ceiling support bar 2. The upper part of the hanger fitting 5 is bent along the upper surface of the upper flange 1b of the ceiling base bar 1, and the locking portion 7 at the upper end of the hanger fitting is bent obliquely downward at the edge of the upper flange 1b. The locking portion 7 is locked to the upper flange 1b.

[Problems to be Solved by the Invention] In the case of such a conventional example, the hanger metal fitting 5 is pushed and bent by touching the ceiling base bar 1 by hand to bend the hanger fitting 5 to the ceiling base bar 1.
Since the ceiling support bar 2 is easily lowered and the ceiling support bar 2 and the ceiling base bar 1 are not in close contact with each other, there is a problem that the strength of the ceiling is weakened against a horizontal force and there is a problem that the flatness of the ceiling is not achieved. . In addition, since the hanger fitting 5 is simply pushed and bent by hand, the angle when bending is not constant, and when the bending angle is small, there is a possibility that it may come off if a large force is applied downward.

The present invention has been made in view of the above-mentioned points, and the object of the present invention is to attach the ceiling plate to the ceiling base bar in close contact with the ceiling base bar with high accuracy, and further, depending on the construction condition. It is an object of the present invention to provide a structure for mounting a ceiling support bar to a ceiling base bar, which can reduce variation in strength and increase mounting strength and can reliably prevent falling.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the structure for attaching the ceiling support bar to the ceiling base bar of the present invention is a ceiling base bar 1 having a U-shaped cross section.
A ceiling support bar 2 having a V-shaped cross section is disposed below the hanger, and an inverted L-shaped hanger fitting 5 is disposed along the outer surface of the web 1a of the ceiling base bar 1 and the upper surface of the upper flange 1b. Vertical piece of hanger fitting 5 along the web 1a of bar 1
Hooking claws 6 provided at the lower end of 5b are hooked and locked on both sides of the upper flange 2b of the ceiling support bar 2 and are continuously extended from the tip of the horizontal piece 5a along the upper flange 1b of the ceiling base bar 1. The locking portion 7 is bent obliquely downward from the position of the edge of the upper flange 1b of the ceiling base bar 1 toward the inside of the ceiling base bar 1, and the locking portion 7 is locked to the upper flange 1b of the ceiling base bar 1. It is characterized in that the tip of the claw portion 8 cut and raised upward from the tip of the engaging portion 7 bent obliquely downward is pressed against the lower surface of the upper flange 1b of the ceiling base bar 1.

[Operation] The hanger fitting 5 is formed in an inverted L shape with the horizontal piece 5a and the vertical piece 5b. Before the hanger fitting 5 is attached, the locking portion 7 extending from the tip of the horizontal piece 5a has the horizontal piece 5a. And the claw portion 8 is cut and raised from the locking portion 7 obliquely downward. Ceiling base bar 1 using this hanger fitting 5
Attach the ceiling support bar 2 to the following. The ceiling support bar 2 is arranged below the ceiling base bar 1, and the hook claws 6 at the lower end of the vertical piece 5b of the hanger fitting 5 are hooked and locked on the upper flange 2b of the ceiling support bar 2 to secure the vertical piece of the hanger fitting 5. 5b is placed along the outer surface of the web 1a of the ceiling base bar 1, and the horizontal piece 5a of the hanger fitting 5 is placed along the upper surface of the upper flange 1b of the ceiling base bar 1. From this state, the horizontal piece 5a of the hanger fitting 5
The locking portion 7 at the tip of the ceiling base bar 1 is bent downward by using the edge of the upper flange 1b of the ceiling base bar 1 as a fulcrum.
It is bent obliquely downward toward inside and the locking portion 7 is locked to the upper flange 1b. By bending the locking portion 7, the claw portion 8 faces upward, and the tip of the claw portion 8 is pressed against the lower surface of the upper flange 1b. Then, the claw portion 8 is pressed against the lower surface of the upper flange 1b of the ceiling base bar 1 so that the ceiling support bar 2 is lifted by the hanger fitting 5, and the ceiling base bar 1 is supported by the ceiling support bar 2.
Can be attached so as to be in close contact with each other, and can be firmly attached by the engagement of the engagement portion 7 and the elastic contact of the claw portion 8 and can be attached so as not to fall off.

[Embodiment] The structure of the ceiling base bar 1 and the ceiling support bar 2 and the structure of attaching the ceiling plate 3 to the ceiling support bar 2 are the same as those in the conventional example, and therefore description thereof will be omitted. As shown in FIG. 4, the hanger fitting 5 is formed in a reverse L shape by a horizontal piece 5a and a vertical piece 5b. A U-shaped notch 10 is provided at the lower end of the vertical piece 5b, and a hooking claw 6 protruding into the notch 8 is provided at the lower end.
At the tip of the horizontal piece 5a, a locking portion 7 is continuously provided so as to be integrated with the horizontal piece 5a, and a rectangular opening 9 is provided at a portion extending between the horizontal piece 5a and the locking portion 7. A claw portion 8 is provided so as to project from the edge of the locking portion 7 of the opening 9 on the tip side in a direction opposite to the tip side. The claw portion 8 is formed in a tapered shape in which the width becomes narrower toward the tip, and the claw portion 8 is inclined so that the tip is lowered downward.
Before the hanger fitting 5 is attached, the horizontal piece 5a and the engaging portion 7 are flush with each other as shown in FIG.
Is inclined diagonally downward. The ceiling support bar 2 is attached to the ceiling base bar 1 using the hanger fitting 5 as follows. The ceiling base bar 2 is arranged below the ceiling base bar 1, the lower surface of the ceiling base bar 1 is brought into contact with the upper surface of the ceiling support bar 2, and the hook claws 6 of the hanger fitting 5 are hooked on the upper flange 2b of the ceiling support bar 2. Lock it and attach the vertical piece 5b of the hanger fitting 5 to the ceiling base bar 1 as shown in FIG.
Along the web 1a of the horizontal bar 5a
Along the upper flange 1b. Hanger fittings 5 in this state
The horizontal piece 5a of the ceiling base bar 1 is in close contact with the upper surface of the upper flange 1b of the ceiling base bar 1, and the lower surface of the ceiling base bar 1 is in contact with the upper surface of the ceiling support bar 2. From this state, bend the locking portion 7 at the tip of the horizontal piece 5a of the hanger fitting 5 downward, and bend the locking portion 7 slightly inside the ceiling base bar 1 by more than 90 ° to bend the locking portion 9. The claw portion 8 faces upward, and as shown in FIG.
The tip of the abuts against the lower surface of the upper flange 1b. When bent further, the tip portion of the claw portion 8 deforms. At this time, the contacting portion of the tip of the claw portion 8 serves as a fulcrum, and the locking portion 7 is pulled further in the manner of a lever. As a result, the ceiling support bar 2 is pulled up and tightly adheres to the ceiling base bar 1. Further, the bent portion at the base of the locking portion 7 of the hanger fitting 5 was arcuate, but it was squeezed and bent at a more acute angle, and there was almost no gap between it and the edge of the upper flange 1b of the ceiling base bar 1. . Thus, the ceiling support bar 2 is attached to the ceiling base bar 1 as shown in FIG.

[Effects of the Invention] As described above, the present invention has a locking portion integrally extended from the tip of the horizontal piece along the upper flange of the ceiling base bar from the position of the edge of the upper flange of the ceiling base bar to the ceiling. The locking part is bent diagonally downward toward the inside of the base bar, the locking part is locked to the upper flange of the ceiling base bar, and the claw part cut and raised upward from the tip of the locking part bent obliquely downward. Since the tip is pressed against the lower surface of the upper flange of the ceiling base bar, the locking part is pulled downward by the pressure contact of the claw part and the hooking claw is pulled up to the lower surface of the ceiling base bar. The top surface is in close contact with the ceiling support bar due to the horizontal force such as seismic force, and the strength of the ceiling is increased. Beautiful flat ceiling with no partial drop The surface can be configured, and the claw portion is pressed against the lower surface of the upper flange of the ceiling base bar and the locking portion is locked, so that the ceiling support bar is unlikely to come loose or come off.

[Brief description of drawings]

1 and 2 are cross-sectional views of an embodiment of the present invention during installation, FIG. 3 is a cross-sectional view after installation of the same, FIG. 4 is a perspective view of a hanger fitting of the same, and FIG. Example perspective view,
FIG. 6 is a perspective view of a hanger fitting of a conventional example, where 1 is a ceiling base bar, 1a is a web, 1b is an upper flange, 2 is a ceiling support bar, 2b is an upper flange, 5 is a hanger fitting, and 6 is a hook. A claw, 7 is a locking part, and 8 is a claw.

Claims (1)

[Scope of utility model registration request] 1. A ceiling support bar having a U-shaped cross section is disposed below a U-shaped ceiling ground bar, and an inverted L-shaped hanger fitting is provided on the outer surface of the web of the ceiling ground bar and the upper surface of the upper flange. Hooking claws provided on the lower ends of the vertical pieces of the hanger fittings along the web of the ceiling base bar are hooked on both sides of the upper flange of the ceiling support bar and locked along the upper flange of the ceiling base bar. The locking part that is integrally extended from the tip of the horizontal piece is bent obliquely downward from the position of the edge of the upper flange of the ceiling base bar toward the inside of the ceiling base bar, and the locking part is the ceiling base bar. The ceiling characterized in that the tip of the claw part, which is engaged with the upper flange of the ceiling and bent obliquely downward, is cut up from the end of the engaging part, and is pressed against the lower surface of the upper flange of the ceiling base bar. Ceiling support bar mounting structure to the base bar.