JP2017009157A - Ventilation sleeve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an opening area of an open hole for passing a ventilation sleeve on a wall of a building small, and in a case of connecting to a duct having a circular cross section, eliminate a joint for interpolating difference of the respective cross section shapes.SOLUTION: A ventilation sleeve 1 includes a cylindrical metal sleeve body 10, and a cylindrical heat insulation material 20 surrounding the outer periphery of the sleeve body. At an outdoor side portion 11 of the sleeve body 10, provided is a flange 30 projecting radially outside. The flange 30 covers an end surface on an outdoor side of the heat insulation material 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilation sleeve attached to a wall of a building for ventilation.

  For example, Patent Document 1 discloses a folding ventilation duct. This ventilation duct has a rectangular tube shape by connecting four flat plate portions in an annular shape. A heat insulating material is provided on the outer periphery of the four plate portions. A flange is attached to the end.

Japanese Patent Application Laid-Open No. 08-061759

  Since the ventilation duct of Patent Document 1 has a quadrangular cylindrical shape, the corner portion tends to become a dead space, and the entire cross-sectional area becomes large because it is necessary to secure an effective flow path cross-sectional area. Therefore, when penetrating the wall of the building, the opening area of the through hole becomes large, and the structural strength of the wall is lowered. Moreover, since the duct for housing | casing is usually cylindrical shape, when connecting such a cylindrical duct and the ventilation duct of patent document 1, the coupling for interpolating the difference in cross-sectional shape is provided. Necessary.

In order to solve the above problems, a ventilation sleeve according to the present invention includes a cylindrical metal sleeve body,
A cylindrical heat insulating material surrounding the outer periphery of the sleeve body;
A flange that projects radially outward from the outdoor side portion of the sleeve body and covers an end face on the outdoor side of the heat insulating material;
It is provided with.
According to this ventilation sleeve, since it has a circular cross section, it is difficult to create a dead space and the cross sectional area can be reduced. Therefore, when penetrating the wall of a building, the opening area of the through hole can be made smaller and the structural strength of the wall can be increased. Moreover, when connecting with the duct of circular section, the joint for interpolating the difference in cross-sectional shape can be made unnecessary.

  It is preferable that the heat insulating material is detachable in the axial direction of the sleeve body with respect to the sleeve body. As a result, maintenance such as replacement and separation work at the time of disposal can be facilitated.

  It is preferable that a structural panel of an outer wall is sandwiched between an end face on the outdoor side of the heat insulating material and the flange. Thereby, the internal diameter of the through-hole for letting the ventilation sleeve in a structural panel pass can be made small, and the structural strength of a structural panel can be ensured.

  According to the ventilation sleeve of this invention, since it is a circular cross section, a cross-sectional area can be made small and the opening area of the through-hole of the wall of a building can be made small. Moreover, when connecting with the duct of circular section, the joint for interpolating the difference in cross-sectional shape can be made unnecessary.

FIG. 1 shows a ventilation sleeve according to a first embodiment of the present invention, and is a side sectional view taken along the line II of FIG. FIG. 2 is a front sectional view of the ventilation sleeve taken along the line II-II in FIG. Fig.3 (a) is front sectional drawing which looked at a mode that the heat insulating material of the said ventilation sleeve was mounted | worn to a sleeve main body from the same cut surface as the same figure (b). FIG.3 (b) is front sectional drawing of the said ventilation sleeve which follows the IIIb-IIIb line | wire of FIG. FIG. 4 is a side sectional view of a duct facility including the ventilation sleeve. Fig.5 (a) is side sectional drawing which shows the ventilation sleeve which concerns on 2nd Embodiment of this invention. FIG.5 (b) is a principal part side surface sectional drawing of the duct installation containing the ventilation sleeve which concerns on the said 2nd Embodiment. Fig.6 (a) is side sectional drawing shown in the state at the time of attaching the ventilation sleeve which concerns on 3rd Embodiment of this invention to the outer wall of a building. FIG.6 (b) is a principal part side surface sectional drawing of the duct installation containing the ventilation sleeve which concerns on the said 3rd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
1 to 4 show a ventilation sleeve 1 according to a first embodiment of the present invention. As shown in FIG. 1, the ventilation sleeve 1 includes a sleeve body 10, a heat insulating material 20, and a flange 30. As shown in FIG. 2, the sleeve body 10 has a cylindrical shape. The material of the sleeve body 10 is made of a metal such as galvanized steel, stainless steel, high corrosion-resistant hot-dip galvanized steel, or aluminum. The sleeve body 10 may be made of a spiral steel plate.

  As shown in FIGS. 1 and 3B, a heat insulating material 20 is provided on the outer periphery of the sleeve body 10. The heat insulating material 20 has a cylindrical shape and surrounds the outer periphery of the sleeve body 10 over the entire periphery. The material of the heat insulating material 20 is made of glass fiber, but is not limited thereto, and may be glass wool, ceramic wool, rock wool, or the like.

  As shown in FIG. 3A, the heat insulating material 20 is composed of a pair of halves 21 and 21. One end portions 21 d and 21 d of the halves 21 and 21 are connected to each other through an adhesive tape 22. Before the heat insulating material 20 is attached to the sleeve main body 10, each of the halves 21 is rotated around the adhesive tape 22 so that the heat insulating material 20 can be opened and closed. An adhesive tape 23 is provided at the end 21e opposite to the end 21d of one half 21. The adhesive tape 23 extends from the end 21 e of the one half 21. Before the heat insulating material 20 is attached to the sleeve main body 10, a release film 24 is provided on the adhesive surface of the extended portion of the adhesive tape 23.

  As shown in FIG. 3B, in a state where the heat insulating material 20 is mounted on the sleeve body 10, the pair of halves 21 and 21 are closed in an annular shape. In addition, one half 21 covers the half circumference of the sleeve body 10, and the other half 21 covers the remaining half circumference of the sleeve body 10. Further, the end portions 21d, 21d and 21e, 21e facing each other of the halves 21 and 21 are connected by adhesive tapes 22 and 23, respectively. The heat insulating material 20 can be pulled out from the sleeve body 10 in the axial direction (the direction perpendicular to the paper surface in FIG. 3B). In short, the heat insulating material 20 is detachable from the sleeve body 10.

As shown in FIG. 1, the end face on the indoor side (right side in the figure) of the heat insulating material 20 is substantially flush with the end face on the indoor side of the sleeve body 10.
The end face on the outdoor side of the heat insulating material 20 is recessed more indoors than the end face on the outdoor side (left side in FIG. 1) of the sleeve body 10. In other words, the outdoor side portion 11 of the sleeve body 10 protrudes to the outdoor side (left side in FIG. 1) from the heat insulating material 20.

  As shown in FIGS. 1 and 2, a flange 30 is provided on the outer periphery of the outdoor side portion 11 of the sleeve body 10. The flange 30 is made of the same material as that of the sleeve body 10. The flange 30 has a flange body 31 and an attachment portion 32. The flange main body 31 is formed in a rectangular plate shape, and protrudes radially outward from the sleeve main body 10. The heat insulating material 20 is applied to the surface of the flange main body 31 on the indoor side (right side in FIG. 1). As a result, the flange 30 covers the end face of the heat insulating material 20 on the outdoor side.

As shown in FIG. 2, attachment holes 31 b are formed at the four corners of the flange body 31.
A circular hole 31 c is formed at the center of the flange main body 31. A cylindrical mounting portion 32 protrudes from the peripheral edge of the hole 31c to the outdoor side (left side in FIG. 1, front side in FIG. 2).

  As shown in FIG. 1, the sleeve body 10 is inserted through the hole portion 31 c and the attachment portion 32. Although detailed illustration is omitted, the attachment portion 32 is joined to the sleeve body 10 by spot welding at a plurality of locations in the circumferential direction.

  As shown in FIG. 1, the attachment portion 32 is further joined to the sleeve body 10 via an adhesive tape 35. The adhesive tape 35 spans between the portion on the outdoor side of the mounting portion 32 of the sleeve main body 10 and the mounting portion 32, and is attached to the entire circumference of the mounting portion 32 and the sleeve main body 10. .

<Construction example of ventilation sleeve 1>
As shown in FIG. 4, the ventilation sleeve 1 is used as a part of a duct facility 6 of a range hood fan 7 in a building, for example. The duct facility 6 includes a ventilation duct 60, the ventilation sleeve 1, and a vent cap 5. The ventilation duct 60 includes a duct body 61 and a heat insulating material 62 wound around the outer periphery thereof. Although illustration is omitted, the cross-sectional shapes of the duct body 61 and the heat insulating material 62 are circular. The ventilation duct 60 extends from the range hood fan 7 to the outer wall 4 of the building.

  The outer wall 4 includes an interior material 41, a heat insulating material 42, a structural panel 43, a trunk edge 44, and an exterior material 45 as constituent elements in order from the indoor side (right side in FIG. 4). A through hole 49 is formed in the outer wall 4. The through hole 49 penetrates each component 41, 42, 43, 45 of the outer wall 4 in the thickness direction. The ventilation sleeve 1 is fitted in the through hole 49. The outer peripheral surface of the heat insulating material 20 of the ventilation sleeve 1 directly faces the inner peripheral surface of the through-hole 49 of the components 41, 42, and 43 of the outer wall 4 and is in contact with or in close proximity. The flange 30 is addressed to the surface on the outdoor side (left side in FIG. 4) of the structural panel 43, and is fixed to the structural panel 43 with screws, nails or the like (not shown) through the mounting holes 31b (FIG. 2). ing.

  A male connection end 65 of the ventilation duct 60 is inserted into an end of the ventilation sleeve 1 on the indoor side (right side in FIG. 4). A vent cap 5 is inserted into the end of the ventilation sleeve 1 on the outdoor side (left side in FIG. 4).

<Manufacture of ventilation sleeve 1>
The ventilation sleeve 1 is manufactured as follows and attached to the outer wall 4 of the building.
The ventilation sleeve 1 is manufactured not at the building construction site but at the factory.
In detail, each component 10-30 of the ventilation sleeve 1 is manufactured separately.
Then, the flange 30 is attached to the outer periphery of the sleeve body 10 by spot welding.

  Next, the heat insulating material 20 is attached to the outer periphery of the sleeve body 10. That is, as shown in FIG. 3A, after the heat insulating material 20 is opened and positioned on the side of the sleeve body 10, the ends of the halves 21, 21 are shown by the arrows in the figure. The sleeve body 10 is sandwiched between the halves 21 and 21 by closing the heat insulating material 20 by bringing the portions 21e and 21e closer to each other. Subsequently, the release film 24 is peeled off, and the adhesive tape 23 is pasted so as to straddle from the end 21e of one half 21 to the end 21e of the other half 21. Thereby, the heat insulating material 20 can be easily wound around the sleeve body 10. Furthermore, the heat insulating material 20 can be positioned easily and accurately by abutting the end face on the outdoor side of the heat insulating material 20 against the flange 30.

The ventilation sleeve 1 has a small number of parts and can be manufactured easily and at low cost.
Further, by manufacturing the ventilation sleeve 1 at the factory, it is possible to ensure the processing accuracy and reduce the quality variation.

<Installation of ventilation sleeve 1>
The ventilation sleeve 1 is carried into the building site of the building and attached to the outer wall 4.
Specifically, the ventilation sleeve 1 is inserted from the outdoor side (left side in FIG. 4) into the through hole 49 of the outer wall 4 before the exterior material 45 is installed. And the flange 30 and the structural panel 43 are joined by abutting the flange main body 31 against the structural panel 43 and driving a screw or a nail into the mounting hole 31b.
Further, the male connection end portion 65 of the ventilation duct 60 is connected to the indoor side (right side in FIG. 4) end of the ventilation sleeve 1. Since both the ventilation sleeve 1 and the ventilation duct 60 have a circular cross section, a joint for interpolating the difference between the cross sectional shapes of the two can be omitted.
Furthermore, the exterior material 45 is installed, and the vent cap 5 is attached to the end of the ventilation sleeve 1 on the outdoor side.

Since the ventilation sleeve 1 has a circular cross section, it is difficult to form a dead space in the internal flow path, and the cross sectional area can be reduced. Therefore, the opening area of the through hole 49 can be reduced, and the structural strength of the outer wall 4 can be increased.
Moreover, since the heat insulating material 20 can be attached to and detached from the sleeve main body 10, maintenance such as replacement of the heat insulating material 20 and separation work at the time of disposal can be facilitated.

Next, other embodiments (including modifications) of the present invention will be described. In the following embodiments, the same reference numerals are given to the drawings for the same configurations as those already described, and the description thereof is omitted.
[Second Embodiment]
FIG. 5 shows a second embodiment of the present invention. As shown to Fig.5 (a), the nipple 15 is provided in the edge part of the indoor side (right side in the figure) of the ventilation sleeve 1B. The material of the nipple 15 is made of the same material as that of the sleeve body 10. The nipple 15 has a cylindrical shape. An annular rib 15b is formed on the outer periphery of the intermediate portion of the nipple 15 in the axial direction. A portion 15 a on the outdoor side (left side in FIG. 5A) of the nipple 15 is inserted into the sleeve body 10. The rib 15b is in contact with the end surface of the sleeve body 10 on the indoor side. Thus, the nipple 15 is positioned in the axial direction (left and right in FIG. 5) with respect to the sleeve body 10. The sleeve body 10 and the nipple outdoor side portion 15a are joined by screws 16 at a plurality of locations in the circumferential direction.

<Construction example of the second embodiment>
As shown in FIG. 5B, when the ventilation sleeve 1 </ b> B is attached to the outer wall 4 of the building, the portion 15 c on the indoor side of the rib 15 b in the nipple 15 protrudes to the indoor side of the outer wall 4. The protruding portion 15c is inserted into the female connection end portion 66 of the ventilation duct 60B.

[Third Embodiment]
FIG. 6 shows a third embodiment of the present invention.
As shown in FIG. 6B, in the third embodiment, the structural panel 43 </ b> C of the outer wall 4 is sandwiched between the end face on the outdoor side of the heat insulating material 20 and the flange 30. The inner diameter of the through-hole 49C in the structural panel 43C is smaller than the outer diameter of the heat insulating material 20, and is matched to the outer diameter of the sleeve body 10. The inner peripheral surface of the through-hole 49C in the structural panel 43C directly faces or is in contact with or close to the outer peripheral surface of the sleeve body 10.
The end face on the outdoor side (left side in the figure) of the heat insulating material 20C is abutted against the indoor side face of the structural panel 43C. The flange 30 covers the end face on the outdoor side of the heat insulating material 20 via the structural panel 43C.

As shown in FIG. 6A, when attaching the ventilation sleeve 1C to the outer wall 4, the heat insulating material 20C is removed from the sleeve body 10 in advance. Then, by inserting the sleeve body 10 into the through hole 49C from the outdoor side (left side in the figure), the flange 30 is abutted against the structural panel 43C, and the flange 30 and the structural panel 43C are connected with screws, nails, or the like. Join.
Next, the heat insulating material 20C is fitted into the outer periphery of the sleeve body 10 from the indoor side (right side in the figure).
Thereafter, as shown in FIG. 6B, the sleeve body 10 and the ventilation duct 60 are connected, the exterior material 45 is installed, and the vent cap 5 is attached.
According to the third embodiment, the inner diameter of the through hole 49C in the structural panel 43C can be made smaller than that in the first embodiment. Therefore, the structural strength of the structural panel 43C can be sufficiently secured.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the nipple 15 may be provided in the ventilation sleeve 1C of the third embodiment (FIG. 6) so that it can be connected to the female connection end 66 of the ventilation duct 60B.

  The present invention can be applied, for example, to duct equipment for ventilation of buildings.

1, 1B, 1C Ventilation sleeve 10 Sleeve body 11 Outdoor side portion 20, 20C Insulation 30 Flange 4 Outer wall 43 Structural panel 49 Through hole

Claims (3)

A cylindrical metal sleeve body;
A cylindrical heat insulating material surrounding the outer periphery of the sleeve body;
A flange that projects radially outward from the outdoor side portion of the sleeve body and covers an end face on the outdoor side of the heat insulating material;
Ventilation sleeve characterized by comprising.   The ventilation sleeve according to claim 1, wherein the heat insulating material is detachable from the sleeve body in an axial direction of the sleeve body.   The ventilation sleeve according to claim 1 or 2, wherein a structural panel of an outer wall is sandwiched between an end face on the outdoor side of the heat insulating material and the flange.

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