JPH0664048U - Duct suspension device - Google Patents

Abstract

(57) [Summary] [Purpose] We would like to obtain a duct suspension system that makes it easy to dimension suspension bolts and is not restricted by obstacles. [Structure] The upper frame metal fitting 1 is hung with one hanging bolt 6, and the lower frame metal fitting 7 with the duct 11 set is fixed to the left and right of the bolt.
It is fixed to the upper frame fitting 1 by means of 12 and nuts 13, and the positional deviation is made by means of the adjusting bolt hole 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a duct suspension device used when constructing a duct by a ceiling suspension system.

[0002]

[Prior art]

 As shown in FIG. 5, the conventional duct suspension device receives the duct 03 by the receiving frame metal fitting 01 having the bolt holes 02 on the left and right sides and attaches the receiving frame metal fitting 01 by the two left and right suspension bolts 04. It is a structure suspended from the ceiling slab 05.

[0003]

[Problems to be solved by the device]

 Therefore, there are the following drawbacks. a. At the time of construction, it is necessary to place the suspension bolts 04 on the ceiling slab 05 at two locations, which is a troublesome task because it requires high locations. b. If there is an obstacle on either the left or right side, it will be impossible to drive the suspension bolt, and it will be impossible to carry out the work or it will be necessary to detour.

An object of the present invention is to propose a duct suspension device which eliminates the drawbacks described in the above a and b.

[0005]

[Means for Solving the Problems]

 The structure of the duct suspension device according to the present invention is as follows.

[0006] An upper frame metal fitting in which the left and right sides are bent downward, the ends of the downward bending are respectively bent in the horizontal direction, and fixing bolt holes are provided in the horizontally bent portions, and an adjusting bolt hole is provided in the center. And one suspension bolt and this nut for suspending the upper frame fitting on the ceiling through the adjustment bolt hole, and bending the left and right upwards, and the ends of the bending upwards are also horizontally folded. A lower frame metal fitting having a fixing bolt hole provided in this horizontally bent portion, a duct is placed between the upper frame metal fitting and the lower frame metal fitting, and the left and right fixing bolt holes are used to make the upper frame metal fitting and the lower frame metal fitting. A duct suspension device consisting of two bolts for fixing each of them and this nut.

[0007]

[Action]

 The upper frame metal fitting is basically mounted by hanging it on the ceiling slab at the center with one hanging bolt. A duct is set in the lower frame fitting, and the upper and lower frame fittings are fixed using the left and right fixing bolt holes. If the position of the duct or the positional relationship between the upper and lower frame fittings is misaligned, adjust the position by sliding it in the adjust bolt hole of the upper frame fitting.

[0008]

【Example】

 1 to 4 show an embodiment of the present invention. Reference numeral 1 denotes an upper frame metal fitting, and the upper frame metal fitting 1 has a shape in which the left and right sides are bent downward and the bent lower parts are further bent outward in the horizontal direction. A long groove 5 as shown, or a perforated row of adjustment bolt holes 6 as shown in FIG. 4, is formed, and fixing portions 4 with fixing bolt holes 4'are respectively provided on the left and right ends of the lower end.

Reference numeral 7 denotes a lower frame metal fitting, and the lower frame metal fitting 7 has a shape in which the left and right are bent upward and the bent upper part is further bent outward in the horizontal direction. This is a structure in which a fixing portion 8 with 8'is provided.

Reference numeral 9 denotes a suspension bolt, and the upper frame fitting 1 is suspended from the ceiling slab 10 through the suspension bolt hole 2. 11 is a duct, and this duct 11 is set in the upper frame fitting 1 and the lower frame fitting 7, and the upper frame fitting 1 and the lower frame fitting 7 are fixed by fixing bolts 12 and nuts 13 at the left and right fixing portions 4.8. To be done. 14 is a nut for the hanging bolt 6.

[0011]

[Effect of device]

 As described above, the present invention has the following effects because the upper frame fitting is hung on the ceiling slab with the single hanging bolt. a. Positioning is easy because there is only one hanging bolt. b. Since two left and right suspension bolts are not used, the rate of hitting an obstacle is halved, which improves workability and eliminates the need for detouring. c. By providing the adjustment bolt holes in the upper frame metal fitting, it is convenient to adjust the positional deviation easily here.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a duct suspension device according to the present invention.

FIG. 2 is a front view of a state in which a duct is installed.

FIG. 3 is an explanatory view of an embodiment of an upper frame fitting having a long groove.

FIG. 4 is an explanatory view of an embodiment of an upper frame fitting provided with a large number of holes.

FIG. 5 is an explanatory view of a conventional duct suspension device.

[Explanation of symbols]

 1 Upper frame metal fitting 2 Hanging bolt hole 4 Fixed part 4'Fixed bolt hole 5 Long hole 6 Perforated 7 Lower frame metal fitting 8 Fixed part 8'Fixed bolt hole 9 Hanging bolt 10 Ceiling slab 11 Duct 12 Fixed bolt 13 Nut 14 For hanging bolt nut

Claims (3)

[Scope of utility model registration request] 1. An upper frame which is formed by bending left and right downwards, bending each of the downwardly bent ends in a horizontal direction, and providing a fixing bolt hole in the horizontally bent portion, and an adjusting bolt hole in the center. Metal fittings, one suspension bolt for suspending the upper frame metal fittings on the ceiling through the adjustment bolt holes, and this nut, and the left and right are bent upward, and the bent ends are respectively bent horizontally. A lower frame metal fitting provided with fixing bolt holes in the horizontally bent portion, a duct is placed between the upper frame metal fitting and the lower frame metal fitting, and the upper and lower frame metal fittings are used by using the left and right fixing bolt holes. A duct suspension device comprising two bolts for fixing each of them and this nut. 2. The duct suspension device according to claim 1, wherein the adjusting bolt hole is an elongated hole. 3. The duct suspension device according to claim 1, wherein the adjustment bolt holes are perforated in a line.