JP2003227647A - Reinforced seam structure of knockdown duct - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To newly provide a reinforced seam structure of a knockdown duct for preventing a hanging bend of a female seam, and for increasing efficiency in knockdown and suspending work. <P>SOLUTION: This reinforced seam structure of the knockdown duct is characterized in that a recessed inclined belt-like reinforcing surface is arranged in the upper and lower part lengthwise direction of duct assembling left and right side plates, the female seam is arranged in the shape of embedding a recessed inclination outside upper and lower end parts continuing with the belt-like reinforcing surface, a male seam fitted in and fixed to the female seam is arranged on duct assembling upper and lower plates, and clearance is arranged between the left and right side plates and the respective female seams for fitting a support plate or a support roller and the lower end of a suspending metal fitting for a duct pipe for supporting the duct from below at duct assembling time. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing goby structure for an assembly duct.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a plate flange duct has a female goby 2 on the inside or outside of the left and right side plates 1a, 1b.
And the male goby 4 at both ends of the upper and lower plates 3a and 3b are fitted into the female goby 2 and hooked to assemble the duct.

[0003]

However, the left and right side plates on which the female goby is provided have a problem that the female goby sags due to the vertical surface shape, and when the female goby is provided inside, the jig for assembling is required. When the female goby is provided on the outside because the support plate and the supporting roll as the above and the lower end of the hanging metal fitting cannot be fitted, the reinforcing flange may be circumferentially attached so that the female goby largely projects to the outside. There was a problem that I could not do it.

[0004]

DISCLOSURE OF THE INVENTION According to the present invention, a strip-shaped reinforcing surface is provided in the upper and lower longitudinal directions of left and right side plates for duct assembly, and the strip-shaped reinforcing surface is provided. A female goby is provided in such a manner as to fill the gap, a male goby that fits into and engages with the female goby is provided on the upper and lower plates for duct assembly, and a support plate that supports the left and right side plates and the female goby under the duct assembly Alternatively, the support roll and the lower end of the hanging metal fitting are provided with a gap into which they can be fitted to solve the problem.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1 and 2, strip-shaped reinforcing surfaces 1c and 1d are provided at the upper and lower portions of the left and right side plates 1a and 1b and are recessed and inclined in the longitudinal direction, and the strip-shaped reinforcing surfaces 1c and 1d are continued. A button punch having button gobs 2 on the outside of the upper and lower ends to fill the slopes of the recesses, and has outward protruding protrusions 4a on the left and right ends of the upper and lower plates 3a and 3b. Bend the male goby 4 for the left and right side plates 1a,
The male goby 4 of the upper and lower plates 3a and 3b is fitted into the female goby 2 of 1b, and the outward projecting hooking portion 4a is formed on the inner intermediate end face 2a.
The various ducts 5 such as the plate flange ducts are assembled and formed even after they are elastically stopped.

Between the left and right side plates 1a and 1b and each female goby 2, as shown in FIGS. 3 to 5, a support plate and a support roll S that support the assembly when a duct is assembled, and a U-shape at the lower end of the hanging metal fitting 6 are provided. A gap 7 into which the hook 6a and the like can be fitted is provided.

Since each female goby 2 is formed in such a manner as to fill the concave slope forming the strip-shaped reinforcing surfaces 1c, 1d, there is some unevenness between the female goby 2 and the left and right side plates 1a, 1b. However, the reinforcing flange 8 can be closely attached to the middle of the duct 5 in the longitudinal direction by rivet caulking 8a or spot welding 8b.

The female goby 2 and the male goby 4 can be replaced with the button punch type and replaced with the Mitsui type. In this case, the projecting portion 2b of the female goby 2 is folded down to make the male goby 4
Will be tightened.

[0009]

According to the present invention, since the left and right side plates are reinforced by providing the upper and lower portions of the left and right side plates in the longitudinal direction which are recessed and inclined, the left and right side plates are reinforced, and the sagging of the female goby and the intermediate sag of the suspended duct are prevented. In addition, since the female goby is provided on the outside so as to fill the slope with the concave shape, the lower end of the hanging plate and the supporting plate and the supporting roll which are jigs for assembling the duct with the left and right side plates are inserted. You can make a gap to get
It is possible to remarkably streamline the assembly of the duct and the hanging piping work to the ceiling and the like, and the reinforcing flange can be provided around the outer surface of the female goby to strengthen the assembled duct. Produces the effect.

[Brief description of drawings]

1 is a front view of the assembled duct.

FIG. 2 is a side view of the same.

FIG. 3 is a partially enlarged view showing a state in which a male goby is being fitted into a female goby.

FIG. 4 is a perspective view showing a state in which a suspension fitting is used to suspend piping.

FIG. 5 is a partially enlarged front view of the same.

FIG. 6 is an enlarged view of a reinforcing flange mounting portion.

FIG. 7 is a partially enlarged view showing an example of Mitsui goby.

FIG. 8 Conventional example diagram

[Explanation of symbols]

Left and right side plates 1a and 1b 1c and 1d are strip-shaped reinforcing surfaces 2 is a female goby 2a is an intermediate end face 2b is a protruding portion 3a is an upper plate 3b is a lower plate 4 is a male goby 4a is a hook portion protruding outward 5 is a duct 6 is a hanging bracket 6a is a U-shaped hook 7 is a gap 8 is a reinforcing flange 8a is rivet caulking 8b is spot welding 9 is a plate flange

Claims (4)

[Claims] 1. A female goby in which recessed inclined strip-shaped reinforcing surfaces are provided in the upper and lower longitudinal directions of the left and right side plates for duct assembly, and the recessed inclination is buried outside the upper and lower end portions following the strip-shaped strengthened surface. The upper and lower plates for duct assembly are provided with male halves that fit into and engage with the female halves, and between the left and right side plates and the female halves, a support plate or support roll that supports the ducts at the time of duct assembly, and a duct A strengthened goby structure for an assembly duct, characterized in that a gap is provided to allow a lower end of a hanging metal fitting for piping to be fitted therein. 2. The reinforced goby structure according to claim 1, wherein the female goby and the male goby are a button punch type and a Mitsui goby. 3. The reinforced goby structure according to claim 1, wherein the hooking claw of the button punch is provided outward. 4. A reinforcing flange is circumferentially attached to the outer surface of the female goby in the middle of the length of the assembly duct.
4. The strengthened goby structure according to any one of 3 to 3.