JP2001082776A - Vent cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vent cover which can be fixed easily from the indoor side while ensuring protection, airtightness and watertightness at the vent and the periphery thereof. SOLUTION: A cover body comprising a hood 3 and a back cover 2 is formed with such a size as can be contained within the diameter of a vent in the side view of at least any one of upper/lower side faces or left/right side faces and any one of the hood 3 or back cover 2 is provided with movable flanges 2c, 2c'. The movable flanges 2c, 2c' are formed with such a size as they can be contained within the diameter of the vent under closed state when the cover body is inserted into the vent so that the abutting face of the cover body against a wall surface can be increased under open state where they are projected in the planar direction of the back cover 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vent cover to be attached to a vent opening on a wall of a building, and more particularly to a vent cover that can be attached only by working from the indoor side.

[0002]

2. Description of the Related Art In general, in the unit construction method and the renovation work of an existing building, it may be necessary to provide a ventilation hole for ventilation later on the wall surface of the building that separates the inside and the outside. In this case, a ventilation hole of a predetermined size is formed in the wall surface, and the inside and the outside are communicated with each other through a duct. At the end of the outdoor vent provided in this way,
A ventilation port cover having a structure for preventing the infiltration of wind and rain and the intrusion of dust and insects is attached.

FIG. 9 is a diagram showing a configuration of a conventional ventilation port cover. The ventilation port cover 50 of FIG. 3 includes a back cover 51 that forms a contact surface with a wall surface, and a hood 52 that covers the front of the back cover 51.
An opening 51a communicating with the ventilation duct, a bridge 51b for fixing the ventilation port cover 50 to a wall surface, and a cylindrical insertion tube 51c to be inserted into the ventilation port are formed.

[0004] The ventilation port cover 50 is formed by inserting the insertion tube 51c into the ventilation port, then engaging a fixing engagement member (not shown) with the bridge 51b, and pulling the bridge 51b in the indoor direction. To the wall.

[0005]

By the way, when the ventilation port cover 50 as shown in FIG. 9 is attached to the ventilation port,
In general, the rear cover 51 is selected to have a size that can cover not only the ventilation port but also the surrounding area. That is, if such a relatively large ventilation port cover 50 is attached, protection for the periphery of the ventilation port and sufficient airtightness and watertightness can be ensured.

However, for example, when the ventilation port cover 50 is attached to the ventilation port in a retrofitting work or the like,
Naturally, work from the outdoor side is required, and a scaffold for work must be set up outdoors along the wall, which is troublesome, and time and cost and work in high places are necessary, and it is safe. There are also major disadvantages in terms of sex. In order to solve such disadvantages, as one conventional solution, a string is hung from the indoor side to the outdoor side through the ventilation opening and tied to the ventilation opening cover 50, and then the ventilation is carried out by approaching the ventilation opening indoors. It is a method that raises to the mouth and inserts the hand from the indoor to the ventilation opening to perform the installation work. However, this method not only complicates the task of tying the string to the ventilation opening cover and unwinding it,
Dragging or hitting the wall during the lift may damage the wall or the vent cover itself. In addition, since the installation work must be performed by putting a hand in a narrow ventilation opening where there is no room in the working space, it is difficult to even hold the ventilation opening cover 50 again, and an unstable and difficult operation has been required.

The present invention has been made in the background of the prior art as described above. The purpose of the present invention is, of course, to easily perform the work of attaching the ventilation port cover only from the indoor side. It is another object of the present invention to provide a ventilation port cover that can sufficiently protect the ventilation port and its surroundings, as well as airtightness and watertightness.

[0008]

In order to achieve the above object, a ventilation port cover according to the present invention has a structure capable of being pulled out from an indoor side to an outdoor side through a ventilation port. It is characterized by having a configuration capable of providing sufficient protection to the surroundings.

That is, the present invention relates to a cover body having a back cover having an opening portion that forms an abutting surface to a wall surface of a building and communicates with a ventilation port of the wall surface, and a hood that covers the front of the back cover. Regarding the ventilation port cover provided, the cover body is formed in a size that fits within the diameter of the ventilation port to be attached in at least one of the upper and lower sides or the left and right sides, and either the back cover or the hood The movable flange has a size that fits within the diameter of the ventilation opening in a closed state when the cover body is inserted into the ventilation opening, and is protruded in the plane direction of the back cover. Provided is a ventilation port cover characterized in that a contact surface of a cover main body with respect to a wall surface is enlarged in an open state.

[0010] In this vent cover, when the cover body is viewed from at least one of the upper and lower sides and the left and right sides,
Since it is formed in a size that fits within the diameter of the ventilation port to be attached, the ventilation port cover can be extracted from the indoor side to the outdoor side through the ventilation port. In such a cover body, a movable flange is provided on either the rear cover or the hood, and the movable flange is in an open state protruding in a plane direction of the rear cover and a contact surface of the cover body with a wall surface. Is to be expanded. In other words, when the movable flange is in the open state, the contact surface of the cover body is enlarged to a size that can cover and cover the ventilation opening and its surroundings,
It is possible to ensure not only protection for the ventilation opening and its surroundings, but also airtightness and watertightness. The movable flange is formed in a size that fits within the diameter of the ventilation port in a closed state when the cover body is inserted into the ventilation port. Therefore, there is no hindrance when the ventilation port cover is inserted into the ventilation port. The back cover may have an insertion tube projecting from the opening and inserted into the ventilation opening.

It is preferable that the vent cover is provided with an operating rod having one end connected to a position close to the opening so as to be vertically movable in the vertical direction.

According to this ventilation port cover, the operation rod can move vertically in the vertical direction via the connection portion with the back cover. Therefore, when inserting the ventilation port cover through the ventilation port, connect the operation rod to the ventilation port cover (back cover).
The ventilation rod cover can be inserted through the ventilation port while holding the operation rod by hand and pulled out to the outside. That is, the operating rod serves as a "holding means" for the operator to hold the ventilation port cover during the insertion work of the ventilation port cover l. Instability and difficulty can be eliminated. When the ventilation port cover is pulled out to the outside and attached to the ventilation port, it is necessary to visually check the mounting posture so that the ventilation port cover does not tilt. To do this, release your hand from the operating rod to make it free,
Since the rotation direction due to its own weight and the vertical direction may be matched, the ventilation port cover can be attached to the ventilation port from the indoor side in an accurate mounting posture without checking from the outdoor side. In other words, the operation rod serves as “attachment posture viewing means” of the ventilation port cover. If the mounting posture is corrected at this time, the operation angle can be freely corrected by operating the operation rod, and the operation is easy. Moreover, if the operating rod has a length that protrudes indoors, even if the operating rod is released during the installation work, the operating rod will be caught by the indoor open end of the ventilation opening and the ventilation opening Because the cover does not fall,
The safety of the mounting work can also be ensured. That is, the operation rod serves as a “fall prevention means” for the ventilation port cover.

In the ventilating port cover having the operating rod, a screw portion is formed on the side opposite to the connection end side of the operating rod with respect to the back cover, and a fixing receiving member for fixing the ventilating port cover is provided on the indoor side wall surface. It may be installed and attached to the ventilation port by fastening the nut to the threaded part of the operation rod so as to press the nut against the fixing receiving member. That is, the operating rod not only functions as a “holding means” of the ventilation port cover during the mounting operation, but also as a “press-fixing means” of the ventilation port cover with respect to the ventilation port. According to such a mounting structure, by fastening the screw portion and the nut of the operation rod, the ventilation port cover (rear cover) and the fixed receiving member fasten the wall formed with the ventilation port together, The ventilation port cover can be attached to the ventilation port, and it is possible to obtain a mounting structure having strong pressure-fixing force and excellent airtightness and watertightness. The number of operation rods provided on the back cover may be any number.

The present invention also relates to another ventilating cover that can be installed only from the indoor side, and the present invention provides an opening that forms a contact surface with a wall surface of a building and communicates with the ventilating hole of the wall surface. A back cover having a plug-in tube protruding from the portion and inserted into the ventilation port, and a hood covering the front of the back cover, a ventilation port cover including a cover body having at least any of the upper and lower sides or the left and right sides. In such a side view, it is formed with a size that fits within the diameter of the ventilation port to be attached, and the insertion tube is made by combining a plurality of tube materials concentrically and is expandable and contractable. To provide a vent cover.

According to this ventilation port cover, the insertion tube is freely expandable and contractible. Therefore, even if the ventilation port cover has the insertion tube, the insertion tube does not hinder the insertion of the ventilation port. . And after letting the ventilation port cover pass outdoors,
If the insertion tube is inserted into the ventilation opening as an extended state and attached to the ventilation opening, the tip side of the insertion tube can be projected to the indoor side beyond the thickness of the wall of the building,
Workability when connecting to a ventilation duct can also be improved. A telescopic structure in which a plurality of cylindrical members are concentrically combined as described above can be a preferable insert cylinder in terms of rigidity, as a structure that gives the insertable tube elasticity, but other insertable tubes can be used. It is also possible to form the insertion tube in a bellows shape so as to be able to expand and contract.

According to the present invention, there is further provided another ventilation port cover which can be installed only from the indoor side, and which has an abutting surface with respect to the wall surface of the building and which communicates with the ventilation port of the wall surface, and this aperture. A back cover having a plug-in tube protruding from the portion and inserted into the ventilation port, and a hood covering the front of the back cover, a ventilation port cover including a cover body having at least any of the upper and lower sides or the left and right sides. When viewed from the side, it is formed in a size that fits within the diameter of the ventilation port to be attached, and it is rotatably supported by the cover body so that the insertion tube can be stored inside the hood. Provide a featured vent cover.

According to this ventilation port cover, since the insertion tube is rotatably supported by the cover body so as to be housed inside the hood, the insertion tube is housed inside the hood, so that the insertion tube can be housed inside the hood. Even if the ventilation port cover has a bayonet, the bayonet does not become an obstacle when the ventilation bay is inserted.
As a structure for providing such support, for example, the insertion tube can be pivotally supported on the hood by a pin member, or can be supported by a ball joint.

In the ventilation port cover according to the present invention as described above, a movable flange is provided on either the back cover or the hood, and the movable flange is formed by hinge-connecting a plate member to an end of the back cover. The plate member turns into a closed state by rotating with respect to the back cover, and from this closed state, the plate member turns to substantially the same plane as the back cover, thereby opening the projecting state from the cover body. None, the contact surface of the cover body can be enlarged.

Further, in addition to the above, the movable flange according to the present invention is configured such that the plate member is slidable in the plane direction of the back cover, and the entire plate member overlaps the back cover to form a closed state. Thus, the plate member may slide out of the edge of the back cover to form an open state protruding from the cover body, and the contact surface of the cover body may be enlarged.

The above-described vent cover is of a type having vents on both left and right sides or one of the sides, and a type having vents on both upper and lower sides or any one of the sides. It may be. The hood can be applied to all known hood shapes such as a vertically or horizontally elongated box shape and a semi-cylindrical shape.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of a ventilation port cover 1 according to a first embodiment. The ventilation port cover 1 includes a back cover 2 and a hood 3 forming a “cover body”, and a back cover 2.
And a net 4 attached to a vent at the lower end of the hood 3, and a packing P for providing airtightness and watertightness between the wall surface of the building and the back cover 2.

The back cover 2 has a pair of movable pieces 2c, which are connected to a board portion 2a and respective side ends thereof via hinges 2b.
2c ', and the board 2a communicates with a ventilation duct (not shown) through the insertion tube 2d inserted into a ventilation opening formed in the wall surface of the building. An opening 2e is formed, and a bridge 2g in which a screw hole 2f is formed on the diameter of the opening 2e along the vertical direction is bridged and connected. The above hinge 2b and movable piece 2
c and 2c 'form the "movable flange" of the present invention.

The hood 3 has a semi-cylindrical shape, and the diameter of the semi-cylinder is within the diameter of the ventilation opening h formed in the wall w of the building (see FIG. 2).

The packing P has the same size as the contact surface of the back cover (cover main body) 2 composed of the substrate portion 2a and the pair of movable pieces 2c and 2c 'with the wall surface w. It has such a thickness and elasticity that air-tightness and water-tightness can be provided between it and the wall w.

Next, a procedure for mounting the ventilation port cover 1 on the wall w of the building will be described with reference to FIG.

As shown in FIGS. 2 (a) and 2 (b), the movable piece 2c, 2c 'is first rotated via the hinge 2b from the state of FIG. 1 to the closed state along the insertion tube 2d. I do. At this time, the packing P is also bent with the rotation of the movable pieces 2c and 2c '. Then, the vent cover 1 is
As shown in (b), the size when viewed from the upper and lower side surfaces is a size that fits within the diameter of the ventilation opening h. Then, the worker holds the ventilation port cover 1 with one hand, and from the indoor, the ventilation port h.
And the movable pieces 2c, 2c 'are pulled out of FIG.
After the open state as shown by, the insertion tube 2d is connected to the ventilation port h.
To be inserted. At this time, the insertion tube 2d is rotated from inside the room while visually checking that the bridge 2g is along the vertical direction, and the mounting angle is adjusted so that the ventilation port cover 1 does not tilt obliquely in the mounted state. Finally, a fixing rod (not shown) having one end engaged with the screw hole 2f of the bridge 2g and the other end fixed to a fixing member (not shown) provided inside the ventilation duct is screwed into the screw hole 2f of the bridge 2g. Then, the ventilation port cover 1 is crimped and fixed to the wall surface w by engaging with a fixing member so as to be drawn into the indoor side.

FIG. 3 is a side view of the ventilation port cover 10 according to the second embodiment. The difference from the ventilation port cover 1 of the first embodiment is that two operating rods 16 and 1 are provided on the rear cover 12.
6 ', the back cover 12 is not provided with an insertion tube, and the method of construction. Hereinafter, the operating rod 1
The construction method will be described while referring to the functions of 6, 16 '.

First, as a work on the indoor side, as shown in FIG. 3, the operation rods 16 and 16 'are erected on the rear cover 12, and then are moved along the rear cover 12 via the connecting portions 16a and 16a'. And defeat it. Connection part 16
a, 16a ', the projecting positions from the back cover 12 are moved back and forth with respect to each other.
16 'do not interfere with each other. The operation rods 16 and 16 'have a structure in which two pipes are slidably extended and contracted, and the length thereof can be appropriately adjusted according to the wall thickness (sleeve length) of the building. .

Then, as shown in FIG. 4A, the operation rods 16 and 16 'are held by hand and passed through the ventilation port h on the wall, but at this time, the movable pieces 12c and 12c' are closed. The ventilation port cover 10 is set to fit within the diameter of the ventilation port h (see FIG. 4B). When the ventilation port cover 10 is pulled out outdoors, the upper operation rod 16 is pulled inward and the lower operation rod 16 'is pushed out, and the rear cover 12 is oriented so as to be parallel to the wall surface wo. Changes. Here, once the upper operation rod 16
Is released, the upper operation rod 16 rotates at the connection portion 16a and falls down by its own weight. Then, the mounting posture of the ventilation port cover 10 is confirmed by visually checking the deviation in the rotation direction with respect to the vertical direction. If there is a deviation between the vertical direction and the rotation direction, it means that the ventilation port cover 10 is not mounted at the correct angle, so that the operation rods 16 and 16 'are operated again to mount the ventilation port cover 10. Correct the angle.

After adjusting the mounting angle of the ventilation port cover 10, the fixing operation and the connecting operation to the duct are performed. First, as a fixing work, as shown in FIG. 5, the fixing receiving plate 17 is applied to the wall surface wi on the indoor side. The fixing receiving plate 17 has a circular opening 17a for connecting an adapter tube 18 to be described later in the center of the rectangular flat plate, and an operating rod 16,1.
A circular through hole 6 'is formed. After the operation rods 16 and 16 'are inserted into the circular through holes, the nuts 16c and 16c' are screwed together and the fixing receiving plate 17 is tightened so as to press against the wall surface wi. Thereby, the ventilation port cover 10 is elastically pressed and fixed to the wall surface wo via the packing po, and the fixing receiving plate 17 is elastically pressed and fixed to the wall surface wi via the packing pi. .

Next, as a connection work with the duct 19, a cylindrical adapter pipe 18 is inserted into the circular opening 17a of the fixing receiving plate 17 from the indoor side, and the distal end 18a is connected to the rear cover of the ventilation port cover 10. 12 until it comes into contact with the inward flange 12a formed in the recess. And duct 19
Into the indoor end 18b of the adapter tube 18,
The connection between the adapter tube 18 and the duct 19 is sealed to provide airtightness and watertightness.

FIG. 6 is an external perspective view of the ventilation port cover 20 according to the third embodiment as viewed from the rear side. The ventilation port cover 20 is configured such that the insertion tube 21 can expand and contract by concentrically combining a plurality of tube materials. It is different from the ventilating port cover 1 of the first embodiment in that it has a simple telescopic structure, and the movable piece and the other configuration covering the periphery of the edge of the venting port are the same. When the wall of the building is relatively thick, it is useful if the insertion tube is long enough to protrude from the wall surface on the indoor side so that the splicing work to the duct can be performed relatively easily. Therefore, in the embodiment shown in FIG. 6, while the insertion tube 21 has a length that exceeds the wall thickness, the ventilation port cover 20 can be inserted from the indoor into the ventilation port. It is a ventilation port cover 20 having an insertion tube 21.

When attaching the ventilation port cover 20 to the ventilation port, the insertion cylinder 21 is inserted into the ventilation port in the most contracted state, and the insertion cylinder 21 is inserted into the ventilation port in the extended state. To do. In addition, about other construction procedures, it is the same as that of the ventilation port cover 1 of 1st Embodiment.

FIG. 7 is an external perspective view of the ventilation port cover 30 according to the fourth embodiment. The ventilation port cover 30 according to the first embodiment is different from the first embodiment in that the insertion tube 31 is pivotally supported by a hood 32 with a pin member, and this is accommodated in the hood 32 by rotation. Unlike the mouth cover 1, the movable piece and the other configuration covering the periphery of the edge of the ventilation opening are the same. The ventilation port cover 30 of the present example is similar to the ventilation port cover 20 of FIG. 6 described above, and the ventilation port cover 30 is moved from indoor to the ventilation port while the insertion tube 31 has a length exceeding the wall thickness. In order to allow insertion, the insertion tube 31 is rotatably stored in the hood 32. In addition, this ventilation port cover is not provided with the net 4 like the ventilation port cover 1 in FIG. 1 in order to make the length of the insertion tube 31 relatively long. You may make it provide a net in a part.

When attaching the ventilation port cover 30, as shown in FIG.
7 is inserted into the ventilation port with the insertion tube 31 rotated as shown in FIG. 7A. In addition, about other construction procedures, it is the same as that of the ventilation port cover 1 of 1st Embodiment.

The ventilation port cover 1 according to each of the above embodiments,
With respect to 10, 20, and 30, various modifications can be made. For example, instead of the movable pieces 2c, 2c ', 12c, and 12c', an engagement receiving concave portion 42b is provided in the rear cover 42 as in, for example, the ventilation port cover 40 of FIG. Movable pieces 42a, 42a '
May be attached. In this case, the engagement receiving recess 42b and the movable pieces 42a, 42a 'constitute the "movable flange" of the present invention.

Further, in each of the above embodiments, a vertical vent cover having a vent at the bottom portion is exemplified as a vent cover. For example, a vent cover of a laterally elongated type having a vent at a side portion is exemplified. The present invention may be applied to

In addition, if the packing of each of the above embodiments is made of a material having elasticity enough to spread the movable piece, the movable piece is naturally urged by the packing after the ventilation opening is inserted. It is convenient because it can be opened.

[0040]

According to the ventilation port cover of the present invention, the ventilation port cover can be pulled out of the room through the ventilation port. Therefore, even in the case where a ventilation port is to be provided later at the time of repair or the like, there is no need to build a scaffold for the installation work of the ventilation port cover, and all the mounting work can be performed indoors. In addition, the movable flange can be provided with a movable flange that can protect the ventilation opening and its surroundings and sufficiently secure the airtightness and watertightness of the ventilation opening. Furthermore, according to the ventilation port cover of the present invention including the operation rod, the workability of mounting the ventilation port cover from indoors can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a vent opening cover according to a first embodiment of the present invention.

2A is an explanatory view showing a state in which the movable piece of the ventilation port cover of FIG. 1 is closed and inserted into the ventilation port, and FIG. 2B is a front view of the insertion state shown in FIG.

FIG. 3 is a side view of a vent cover according to a second embodiment of the present invention.

4A is an explanatory view showing a state in which the movable piece of the ventilation port cover of FIG. 3 is closed and inserted into the ventilation port, and FIG. 4B is a front view of the insertion state shown in FIG.

FIG. 5 is an explanatory diagram showing a state in which a vent cover according to a second embodiment is fixed to a wall surface.

FIG. 6 is a rear perspective view of a vent cover according to a third embodiment of the present invention.

FIG. 7A is an external perspective view of a ventilation port cover according to a fourth embodiment of the present invention, and FIG. 7B is an explanatory view showing a state in which the insertion tube is rotated and housed in a hood.

FIG. 8 is a view showing a modified example of the movable flange of the present invention.

FIG. 9 is an external perspective view showing an example of a conventional vent opening cover.

[Explanation of symbols]

1,10,20,30 Ventilation port cover 2,12 Back cover 2a Board part 2b Hinge (movable flange) 2c, 2c ', 12c, 12c', 42c, 42c 'Movable piece (movable flange) 2d, 21,31 Difference Enclosure 2e Opening portion 2f Screw hole 2g Bridge for fixing 3 Hood 4 Netting p, pi, po Packing 16,16 'Operating rod w, wi, wo Wall of building h Ventilation port

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Toshio Sadamasa 2-2-2 Jonanjima, Ota-ku, Tokyo Inside Unix Company (72) Inventor Takao Takao 1-9-9 Kandanishikicho, Chiyoda-ku, Tokyo F-term in Japan General Housing Co., Ltd. (Reference) 3L058 BB04 BC06

Claims (6)

[Claims] 1. A ventilation port cover having a cover main body having a back cover having an opening portion forming an abutting surface to a wall surface of a building and communicating with a ventilation port of the wall surface, and a hood covering the front of the back cover. In, the cover body is formed in a size that fits within the diameter of the ventilation port to be attached in at least one of the upper and lower sides or the left and right sides, and a movable flange is provided on either the rear cover or the hood. Has this movable flange,
The cover body is formed in a size that fits within the diameter of the ventilation port in the closed state when the cover body is inserted into the ventilation port, and the contact surface of the cover body against the wall surface in the open state protruding in the plane direction of the back cover. A vent cover characterized by being adapted to expand. 2. The vent cover according to claim 1, wherein the back cover includes an operation rod having one end connected to a position close to the opening so as to be vertically movable in a vertical direction. 3. A back cover having an opening that forms a contact surface with a wall surface of a building and communicates with a ventilation opening of the wall surface, and a plug-in tube that protrudes from the opening and is inserted into the ventilation opening. And a hood that covers the front of the ventilation port cover, the cover body having a size that fits within the diameter of the ventilation port to be attached in at least one of the upper and lower sides and the left and right sides. A ventilation port cover, wherein a plurality of tubular members are concentrically combined with each other so as to be expandable and contractable. 4. A back cover having an opening that forms a contact surface with a wall of a building and communicates with a ventilation port of the wall, and a plug-in tube that projects from the opening and is inserted into the ventilation port. And a hood that covers the front of the ventilation port cover, the cover body having a size that fits within the diameter of the ventilation port to be attached in at least one of the upper and lower sides and the left and right sides. A vent cover, wherein the cover is rotatably supported by the cover body so that the insertion tube can be stored in the hood. 5. A back cover or a hood having a movable flange formed by connecting a plate member to the back cover by a hinge, and the plate member rotating with respect to the back cover. Wherein the plate member pivots on the same plane as the rear cover to form an open state protruding from the cover body, and the contact surface of the cover body is enlarged. The ventilation port cover according to claim 4. 6. A movable flange is provided on either the back cover or the hood, and the movable flange is configured such that a plate member is slidable in a plane direction of the back cover, and the whole plate member overlaps the back cover. The closed state, wherein the plate member slides out of the edge of the rear cover to form an open state protruding from the cover body, and the contact surface of the cover body is enlarged. The ventilation port cover according to claim 4.