JP4897017B2 - Air vent - Google Patents

Description

  The present invention relates to a ventilation opening that is attached to an opening end of a duct provided in a wall of a building.

  The ventilation port generally includes a cylindrical body part that is inserted into a duct and a ventilation body part that is provided on one end side of the cylindrical body part and is located on the outer surface of the wall.

  Specifically, the cylindrical body part is formed of an insertion cylinder part inserted into the duct, a locking spring provided on the outer periphery of the insertion cylinder part, and a flange part projecting to the outer periphery of the front end of the insertion cylinder part. It is equipped with a fire damper mechanism.

  The ventilation body portion includes a flange portion attached to the flange portion, and has a ventilation window portion corresponding to the insertion tube portion. The ventilation window portion is a so-called galley to prevent rainwater from entering. A structure is adopted in which a number of long windows called shapes are arranged side by side, and the blades of the long window edges are bent at a certain angle. Especially, in order to disperse the blowing direction, the long windows are formed. Devices are known in which the arrangement and the folding direction of the slats are different.

  For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2004-21967, FIG. 10), the lower part is formed vertically long and juxtaposed on the left and right, and the blades of the left and right vertically long windows are bent at different angles on the left and right, A ventilation window with three-way diversion that guides the pipe air flow downward is shown with a vane plate that divides the blowing direction of ventilation introduction wind (hereinafter referred to as “ventilation flow”) to the left and right outwards, with the upper part as a horizontally long window. Yes.

  Further, Patent Document 2 (Registered Design No. 1767679) discloses a ventilation port in which oblique long windows having different right and left inclination directions are arranged in parallel to divert the ventilation flow obliquely left and right downward.

FIG. 10 of Japanese Patent Laying-Open No. 2004-21967. Registered design No. 1 176791.

  By the way, the means for producing the ventilation body portion having the ventilation window portion that performs the diversion in the blowing direction of the ventilation flow is formed by separately processing the ventilation window plate and the flange portion forming the ventilation window portion, It welds to a predetermined position (front opening part) (patent document 1), and the ventilation window part is also molded integrally with the collar part (patent document 2).

  Regardless of which production method is adopted, the shunt structure of the ventilation window of the ventilated part to be produced is constant, and if it is desired to adopt a different shunt structure, the parts constituting the ventilator part are produced separately. There is a need. Naturally, it becomes a manufacture of a small number of lots, and the cost is increased.

  In addition, at the installation location, if there is a problem in the direction of the ventilation flow by adopting the existing ventilation body, it is possible to respond by rotating the mounting position of the ventilation port with respect to the duct. If there is inconvenience even if the position is changed in this way, or the ventilation part of the two-way branch flow is changed to the three-way branch flow, or only the one branch flow direction in the three-way branch flow is changed, the existing parts cannot cope.

  Therefore, the present invention proposes a novel ventilation port that enables a desired diversion by adding a few components to the existing ventilation port.

The ventilation port according to the present invention includes an insertion cylinder part to be inserted into a ventilation duct of a building, a cylinder body provided with a flange part provided on an outer periphery of an end part of the insertion cylinder part, and a long window, and a long window. A ventilation port comprising a ventilation window portion formed by bending edge blades in a predetermined direction and a flange provided on the outer periphery of the ventilation window portion and connected to the flange portion, and provided with an arc outer periphery. The auxiliary ventilation window part formed by providing a narrow connecting portion for twisting at both ends of the slat and bending the slat in the desired direction is welded to the flange part or the flange part and the ventilation body. It is sandwiched and is provided so as to close a part of the opening of the insertion tube portion.

  If there is an existing product cylinder and ventilator, an auxiliary ventilation window is attached to the cylinder so that the ventilation flow that does not pass through the auxiliary ventilation window is blown out in the specified direction at the ventilation window of the ventilation Since the ventilation flow passing through the auxiliary ventilation window portion passes through the ventilation window portion after the direction is changed in the auxiliary ventilation window portion, the blowing direction of the ventilation flow is variously changed by the auxiliary ventilation window portion. Become.

Therefore, the position of the auxiliary ventilation window, the range of formation (the range occupied by the opening of the cylinder), the direction and angle of the slats (which can be easily set because a narrow connecting portion for twisting is provided) are selected as appropriate. It can change to the instrument provided with various blowing directions easily by incorporating in the member. In addition, the auxiliary ventilation window portion has an arc outer periphery, and the outer peripheral portion is welded to the flange portion or sandwiched between the flange portion and the ventilation body, so that the auxiliary ventilation window portion can be easily provided.

Moreover, the ventilation opening which concerns on this invention (Claim 2) is equipped with the blade | wing plate which an auxiliary ventilation window occupies the range about 1/3 of the opening range of an insertion cylinder part, and becomes a downward blowing in the said ventilation opening further, The slats of the ventilation window portion of the ventilation body are formed to blow out in the left and right direction, and can be easily changed to a downward blowing device at the existing ventilation port of the left and right blowing.

  The configuration of the present invention is as described above, and can easily cope with the variety of blowing directions with a simple structure in which an auxiliary ventilation portion is incorporated in various existing ventilation openings.

1 is an overall perspective view of an embodiment of the present invention. The front view. FIG. Manufacturing explanatory drawing of the auxiliary ventilation part. The exploded perspective view.

  Next, an embodiment of the present invention will be described. The ventilation port shown in the embodiment is composed of two members, a cylindrical body 1 and a ventilation body 2.

  The cylindrical body 1 is basically the same as a conventional ventilation port, and is formed with an insertion cylindrical part 11, a flange part 12, and a locking spring part 13, and an auxiliary ventilation window part 14 in particular.

  The insertion cylinder part 11 has a size that can be inserted into a ventilation duct of a building, and the flange part 12 is provided on the outer periphery of the opening end of the insertion cylinder part 11, and is a receiving part for welding an auxiliary ventilation window part 14 to be described later. A step structure including a shallow concave portion 121 is provided, and a screw hole 122 for connecting a ventilator 2 described later is provided.

  A plurality of locking spring portions 13 are provided on the outer periphery of the insertion tube portion 11 with a plate spring body as a cantilever support. The whole is narrowed and inserted into a ventilation duct, and the device is made by the compression repulsive force of the locking spring portion 13. Is installed in the duct.

  As shown in FIG. 4 (a), the auxiliary ventilation window portion 14 is a half-moon shaped metal plate in which the range excluding the arc outer peripheral portion 141 occupies a range of about 1/3 of the opening range of the insertion tube portion 11. Within the range excluding the arc outer peripheral portion 141, the blade plate 142 and the narrow connecting portion 143 for twisting at both ends of the blade plate portion 142 are punched out so that the blade plate portion 142 has the chord direction as the blowing direction. The long window portion 144 is formed by bending at a desired angle.

  The auxiliary ventilating window portion 14 is a ventilating window in the range of about ３ above the opening portion of the insertion cylinder portion 11 by welding the arc outer peripheral portion 141 to the recess 121 and welding.

  The ventilator 2 is basically the same as a conventional instrument, and includes a ventilation window portion 21 and a flange portion 22. The ventilation window portion 21 has a large number of vertically long windows 211 arranged side by side, and the wing plate 212 of the long window edge is bent in the left and right directions, respectively. The flange portion 22 has a step on the outer periphery of the ventilation window portion 21. Provided with a screw hole 221 at a position corresponding to the screw hole 122 in a shape corresponding to the flange portion 12, and connecting the ventilator 2 to the cylindrical body 1 with a screw 222. is there.

  Thus, in the ventilation port, the insertion tube portion 11 is inserted into the duct, and the flange portion 12 is nailed to the wall surface as necessary, and the ventilation body 2 is attached and fixed to the flange portion 12, or the cylinder body 1 and the ventilation body. 2 is connected in advance and attached to the duct.

  The ventilation flow by the ventilation port attached to the duct is divided into a ventilation flow a that first passes through the auxiliary ventilation window portion 14 and a ventilation flow b that does not pass through the auxiliary ventilation window portion 14, and each division flow is further divided into the next ventilation window. The part 21 is diverted right and left.

  That is, the ventilation diversion a blows out downward and blows out to the left and right sides. The blowout from the ventilation body 2 is obliquely lower left and right, and the ventilation diversion b becomes a blowout left and right. Similarly, the blowout toward the ceiling is prevented, and it is divided into left and right so as not to receive the blowout flow directly.

  In the present invention, in particular, by providing the narrow connecting portions 143 for twisting at both ends of the blade plate portion 142 of the auxiliary ventilation window portion 14, the blade plate portion 142 can be easily bent and the angle thereof. Can also be set easily.

  Furthermore, the size (ratio occupied in the opening part of the insertion cylinder part 11) and shape of the auxiliary ventilation window part 14 can be easily changed, the manufacture thereof is easy, and the fixing position to the cylinder 1 can be arbitrarily selected. By combining with existing various ventilation bodies (different parts of the ventilation window portion 21), ventilation ports having various blowing directions can be easily obtained. Of course, you may combine with the ventilation body provided with the original ventilation window part, without employ | adopting the existing ventilation body.

DESCRIPTION OF SYMBOLS 1 Cylindrical body 11 Insertion cylinder part 12 Flange part 121 Recessed part 122 Screw hole 13 Locking spring part 14 Auxiliary ventilation window part 141 Arc outer peripheral part 142 Blade board part 143 Twist narrow connection part 144 Long window part 2 Ventilation body 21 Ventilation window Portion 211 Vertically long window 212 Vane plate 22 Gutter 221 Screw hole 222 Screw

Claims (2)

The insertion cylinder part to be inserted into the ventilation duct of the building, and the cylinder provided with the flange part provided on the outer periphery of the end part of the insertion cylinder part, and the long window are arranged side by side, and the blades of the long window edge are arranged in a predetermined direction. A ventilating port comprising a bent ventilation window and a ventilator provided on the outer periphery of the ventilation window and provided with a flange connected to the flange, provided with an arc outer periphery, and twisted at both ends of the slats An auxiliary ventilation window portion formed by bending a blade in a desired direction by providing a narrow connection portion, the outer peripheral portion being welded to the flange portion or sandwiched between the flange portion and the ventilator, and the opening of the insertion tube portion A ventilation opening characterized by being provided so as to block a part of the part.   The auxiliary ventilating window occupies a range of about 1/3 of the opening range of the insertion cylinder, and includes a vane that blows out downward, and the vane of the ventilating window of the ventilator is blown out to the left and right outwards The ventilation opening according to claim 1 formed.

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