JPH0242989Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a duct cover mounting bracket used when attaching a duct cover to a duct body.

(Prior technology) Conventionally, when attaching a duct cover to the duct body, there are methods such as welding a nut to the duct body and tightening the duct cover with bolts, welding an angle piece to the duct cover and tightening it with bolts, and other methods of clamping. There was something to tighten the cover band.

(Problems to be Solved by the Invention) However, in the above mounting method, a hole is bored in the duct body or the duct cover, or an angle is welded.

Therefore, the duct body or the duct cover must be machined, and as a result of this machining, the product becomes expensive.

Further, when the duct body or the duct cover is processed as described above, there is a drawback that the mounting portion is fixed at a fixed position and cannot be fixed at an arbitrary location.

Therefore, the object of this invention is to eliminate the above-mentioned drawbacks and provide a mounting fitting that does not require any processing on the dust main body and dust cover.

(Means for Solving the Problems) In order to achieve the above object, this invention attaches the duct cover 3 to the duct body 2, and the duct cover 3 is located on the bending part 21 of the duct body 2. Upper plate part 61 provided with claws 62 for holding 21
A hanging portion 63 with a bolt 64 protruding outward from its edge
An L-shaped inner metal fitting 6 is bent at a right angle, and a long hole 44 is provided at a position corresponding to the bolt 64, and the end of the canopy part 31 is pressed against the upper end of an outer metal fitting main body 42 arranged on the outside of the side plate 32. It is composed of an outer metal fitting 4 having a bent holding part 41 and a sloped part 43 at the lower end, and a nut that is screwed onto a bolt 64 to tighten the outer metal fitting 4 to the inner metal fitting 6 side.

(Example) An embodiment of this invention will be described below based on the drawings.

Reference numeral 1 in the figure indicates a mounting bracket, and the mounting bracket 1 includes an inner bracket 6 disposed outside the upper end of the duct body 2, an outer bracket 4 disposed outside the end of the duct cover 3, and an inner and outer bracket. 6 and 4, and a nut 5 that tightens them together.

The inner metal fitting 6 is a metal fitting with an L-shaped cross section, and has an upper plate part 6 located on the bent part 21 of the duct main body 2.
1, and a hanging portion 63 bent at right angles to the edge of the upper plate portion 61.

The upper plate portion 61 is provided with a claw 62 for holding the bent portion 21, and the claw 62 is, for example, punched, as shown in FIG.

Further, a bolt 64 is provided at a predetermined position on the hanging portion 63 so as to protrude outward at a right angle. This bolt 64 is welded or bonded with an adhesive or the like.

In the outer metal fitting 4, a presser part 41 that presses the end of the canopy part 31 of the duct cover 3 from the outside is bent at the upper end of the outer metal fitting main body 42.

The outer metal fitting main body 42 is provided with a long hole 44 at a position corresponding to the bolt 64, and the lower end of the outer metal fitting main body 42 has a hanging portion 63 and an inclined portion 43 having approximately the same height as the thickness of the side plate 32. is established,
When the outer metal fitting 4 is tightened with the nut 5, the elasticity of this inclined portion 43 holds the outer metal fitting 4 at an angle that does not move.

Further, the nut 5 is screwed onto the bolt 64 and tightens the outer metal fitting 4 to the inner metal fitting 6 side via the end of the duct cover 3.

(Operation and Effect) Then, after holding the bent part 21 with the claws 62 of the inner metal fitting 6 and arranging the inner metal fitting 6 along the end of the duct body 2, the duct cover 3 is attached to the inner metal fitting 6.
The outer metal fitting 4 is placed on the outside of this duct cover 3. Then, the nut 5 is screwed onto the bolt 64 and tightened. Note that when the duct body 2 and the duct cover 3 are attached using this mounting bracket 1, there will be a gap in the area other than the attachment part, but a band-shaped meji material with a thickness of about the same thickness as the duct cover 3 (in the drawings) is attached to the bent part. (omitted), the duct body 2
and the duct cover 3 are hermetically sealed.

According to this invention, there is no need to perform any machining on the duct body and the duct cover, so machining is simple and in addition, it can be manufactured at low cost.

In addition, by using this mounting bracket,
The duct body and duct cover can be attached at any position, which improves work efficiency in construction.

[Brief explanation of the drawing]

The figures relate to an embodiment of this invention, and Fig. 1 is a side view of the embodiment, Fig. 2 is a partial plan view of Fig. 1, Fig. 3 is a sectional view taken along line A-A, and Fig. 4 is a mounting portion. FIG. 5 is a plan view of the inner metal fitting, and FIG. 6 is a front view of the outer metal fitting.

Claims (1)

[Scope of utility model registration request] The duct cover 3 is attached to the duct body 2, and bolts 64 are attached outwardly to the edge of the upper plate part 61, which is provided with a claw 62 that is located on the bent part 21 of the duct body 2 and holds this bent part 21. an L-shaped inner metal fitting 6 with a hanging part 63 bent at right angles, and a long hole 44 at a position corresponding to the bolt 64;
an outer metal fitting 4 in which a presser part 41 for pressing the end of the canopy part 31 is bent at the upper end of an outer metal fitting main body 42 disposed on the outside of the side plate 32, and an inclined part 43 is provided at the lower end;
A duct cover mounting bracket consisting of a nut that is screwed onto a bolt 64 and tightens the outer metal fitting 4 to the inner metal fitting 6 side.