JP2004144406A - Ventilation tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform the sealing processing to an outer wall face without disturbing the mounting and demounting of a hood body in a ventilation tool composing an outer wall part of a ventilation hole for communicating an indoor side of a building and the outside air. <P>SOLUTION: This ventilation tool is composed of a mounting plate 1 provided with a cylindrical part 11 inserted into an outer wall-side conduit in a ventilation passage communicating the indoor and outdoor sides and a collar part 12 abutted on an outer wall C, and the hood body 3 covering a lower opening. An edge of the collar part of the mounting plate 1 is bent (14, 15) to a cylindrical part side, a recessed part and a screw hole for burying a head part of a wall fixing screw are formed on proper parts of the collar part, and the hood body 3 is provided with a flange part 32 corresponding to the collar part of the mounting plate to expose the bent edge 15 of the mounting plate, and has a threaded hole corresponding to the screw hole. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
[Industrial applications]
The present invention relates to a ventilator that forms an outer wall portion of a ventilation hole that communicates between a building room and outside air.
[0002]
2. Prior Art and Problems to be Solved by the Invention
In building ventilation, ventilation paths (vent pipes and ducts) communicating inside and outside the building are formed, and natural ventilation and forced ventilation are performed. In particular, a hood is provided on the outer wall portion of the ventilation path in order to prevent outside air from entering.
[0003]
As a means for attaching the hood, an instrument in which a tube attaching mechanism is attached to the hood body itself is known. That is, a cylinder member and a hood member inserted into a ventilation path (ventilation hole) or a rag member as necessary are interposed, and the whole is integrated with a screw or the like, the cylinder member is inserted into the ventilation path, and a contact between the appliance and an outer wall is formed. Is subjected to a sealing treatment with a silicone agent or the like.
[0004]
As described in Japanese Unexamined Utility Model Publication No. 58-15133, the conventional example of Japanese Patent Application Laid-Open No. 7-260220, and Japanese Patent Application Laid-Open No. 9-33082, the above-mentioned seal processing structure is such that the outer peripheral surface of the hood member is directly attached to the outer wall. They are brought into contact, and the contact portions are sealed.
[0005]
When the above configuration is adopted, when internal inspection or internal repair becomes necessary, it is necessary to remove this seal portion, and when re-attaching, a re-sealing process is required.
[0006]
Further, Japanese Patent Application Laid-Open Nos. Hei 6-323586 and Hei 7-260220 propose a configuration in which a flange portion that comes into contact with an outer wall of a cylindrical member is sealed in order to prevent exposure of a sealant. However, the former is particularly complicated due to the structure in which the silicone agent is injected by a special means, and the latter is a structure that wraps the seal part (encloses the seal part by caulking connection), and the attachment and detachment of the hood is completely considered. It has not been.
[0007]
Further, Japanese Patent Application Laid-Open No. 2002-130757 discloses a configuration in which a trapezoidal mounting plate is mounted around an outer wall of a ventilation hole, and a hood member is configured to be detachable. The waterproofing of the mounting plate and the outer wall eliminates the sealing process by providing a waterproof packing, but the degree of freedom in responding to the difference in the outer diameter of the ventilation path (ventilation pipe) is small, and the number of parts increases Be expensive. If a seal is applied to the outer periphery of the mounting plate with a silicone agent instead of the packing, the mounting connection point of the hood will be on the side of the mounting plate. In addition, there is a possibility that the hood body portion is also sealed (the hood body portion is covered with the sealing agent), and the hood body cannot be removed.
[0008]
Therefore, the present invention proposes a ventilator having a structure in which the hood can be securely attached and detached.
[0009]
[Means to solve the problem]
A ventilator according to the present invention (claim 1) includes a mounting plate provided with a tubular portion that can be inserted into an outer wall side conduit in a ventilation path communicating indoors and outdoors, a flange portion that contacts the outer wall, and a lower opening. The mounting plate is formed with a hood body serving as a cover.The mounting plate is formed by bending the flange edge toward the cylindrical portion, and forming a recess for embedding the head of the wall stopper screw and a screw hole at an appropriate position of the flange portion, The hood body includes a flange portion corresponding to the flange portion of the mounting plate and exposing a bent edge of the mounting plate, and is provided with a screw hole corresponding to a screw hole.
[0010]
Therefore, the mounting plate is attached to the outer wall, the hood is attached to the mounting plate with screws, and a sealing process is performed between the exposed bent edge of the mounting plate and the outer wall with a resin agent. Can be done.
[0011]
Further, according to the present invention (claim 2), in the device, the bent edge of the mounting plate is formed in two steps having a step, and the front edge of the bent edge is the edge of the flange portion of the hood body. To expose the rear step.
[0012]
Therefore, positioning is easily performed by mounting the hood body on the crown, and the screw connection operation is facilitated.
[0013]
Further, according to the present invention (claim 3), in the appliance, the flange portion of the hood body covers the recess for embedding the head of the wall screw.
[0014]
Therefore, the hood cannot be mounted unless the mounting plate is mounted and fixed to the outer wall surface, so that the sealing process must be performed before the hood is mounted. Therefore, there is no possibility that the edge of the hood is covered with the sealant.
[0015]
Embodiment
Next, an embodiment of the present invention will be described. The ventilation device shown in the embodiment includes a mounting plate 1, a rattling plate 2, and a hood 3.
[0016]
The mounting plate 1 includes a tubular portion 11 attached to the ventilation pipe A and a flange portion 12 provided at a front end of the tubular portion 11, and a cut-and-raised holding claw 13 is provided on the outer periphery of the tubular portion 11. The edge of the flange portion 12 is formed at a bent edge (an upper bent edge 14 and a lower bent edge 15) which is bent rearward (toward the cylindrical portion forming side) to have two steps with a step, and A plurality of recesses 16 for embedding the heads of the wall stop screws B and screw holes 17 for connecting the hood body are provided at appropriate locations. Further, an opening / closing damper may be incorporated in the cylindrical portion 11 as needed.
[0017]
The rattling plate 2 forms an appropriate rattling portion 21 on the front surface, and the rattling portion 21 is closed by a mesh plate 22. The edge 23 corresponds to the flange 12 and the upper bent edge 14 of the mounting plate 1. And a screw hole 24 corresponding to the screw hole 17 is provided. The recess 16 for embedding the head of the wall screw B is closed.
[0018]
The hood body 3 serves as a cover of a ventilation opening provided with an opening 31 below, and the outer peripheral flange 32 corresponds to the edge 23 of the rag plate 2 and has a screw corresponding to the screw hole 24. A hole 33 is provided. When the bent edge step of the mounting plate 1 is made to correspond to the thickness in which the edges of the rag plate 2 and the hood body 3 are overlapped, the bent edge portion of the entire device becomes a single plane.
[0019]
Thus, the mounting of the wall surface of the device is performed by inserting the cylindrical portion 11 of the mounting plate 1 into the ventilation pipe A, bringing the end surface of the lower bent edge 15 into contact with the outer wall surface C, and attaching the mounting plate 1 with the wall fixing screw B. To the outer wall.
[0020]
Next, a sealing process is performed between the lower bent edge 15 and the outer wall surface C with a sealing agent D such as a silicone resin. Then, the rag plate 2 and the hood body 3 are overlapped with each other, and the screws E are mounted from the screw holes 24 and 33 to integrate the entire device.
[0021]
Therefore, regardless of the sealing portion, the rag plate 2 and the hood body 3 can be removed by attaching and detaching the screw E, so that inspection and repair can be easily performed.
[0022]
The presence or absence of the gusset plate 2 and the structure thereof are optional, and the hood body 3 can be arbitrarily selected in addition to the above-described configuration, for example, by providing a gusset in an opening portion or attaching a net plate.
[0023]
【The invention's effect】
As described above, the present invention is configured by a mounting plate provided with a tubular portion that can be inserted into an outer wall side conduit and a flange portion that comes into contact with the outer wall, and a hood body that covers a lower opening. The flange of the flange is bent toward the cylindrical portion, and a recess for embedding the head of the wall screw and a screw hole are formed at an appropriate position of the flange, and the hood body corresponds to the flange of the mounting plate, and A ventilation tool that has a flange that exposes the bent edge of the mounting plate and that has screw holes corresponding to the screw holes allows sealing treatment by applying resin only between the mounting plate and the outer wall plate. The hood body can be removed without receiving it.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of each member according to an embodiment of the present invention.
FIG. 2 is an explanatory view of an attached state cut out of the same part.
FIGS. 3A and 3B are explanatory diagrams of the sealing state, wherein FIG. 3A shows a wall fixing screw portion, and FIG.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 mounting plate 11 cylindrical portion 12 flange portion 13 holding claw 14 upper bent edge 15 lower bent edge 16 concave portion 17 screw hole 2 rattle plate 21 rattle portion 22 mesh plate 23 edge 24 screw hole 3 hood body 31 opening 32 Flange part 33 Screw hole A Ventilation pipe B Wall screw C Outer wall surface D Sealant E Screw

Claims (4)

It is composed of a mounting plate provided with a tubular portion that can be inserted into an outer wall side conduit in a ventilation path communicating indoors and outdoors and a flange portion that comes into contact with the outer wall, and a hood body that covers a lower opening. The flange of the flange is bent toward the cylindrical portion, and a recess for embedding the head of the wall screw and a screw hole are formed at an appropriate position of the flange, and the hood body corresponds to the flange of the mounting plate, and A ventilator comprising: a flange portion for exposing a bent edge of a mounting plate; and a screw hole corresponding to a screw hole. The bent edge of the mounting plate is formed in two steps having a step, the front edge of the bent edge is covered with the edge of the flange of the hood body, and the rear step is exposed. The ventilation device according to 1. 3. The ventilator according to claim 1, wherein the flange of the hood body covers the recess for embedding the head of the wall screw. The ventilator according to any one of claims 1 to 3, wherein a netted garbage plate is interposed between the attachment body and the hood body.

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