JPS6325467Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a ventilation device that is fitted onto the ceiling wall or side wall of a unit room or the like.

Conventionally, this type of ventilation equipment has a flange integrally formed on the periphery of a ventilation cylinder with a blind plate attached inside.
The flange is placed against the wall and fixed using screws or the like.

As a result, the heads of screws, etc. are visible from inside the room and not only spoil the aesthetics of the interior, but also screws are screwed into the wall for installation.
It was not possible to tighten them strongly, and the screws, etc., loosened and came off after long-term use.

In view of these conventional circumstances, the present invention has been developed by fixing the ventilation equipment on the back side of the wall, so that it can be installed without spoiling the aesthetics of the interior of the unit room, and it can also be installed in a strong fixed state. The purpose is to provide ventilation equipment that can

The basic structure of the ventilation device of this invention is a ventilation cylinder that fits into a fitting opening in the wall and connects to the ventilation duct behind it, and a blind plate that is installed inside the cylinder to ensure a ventilation path of a predetermined area. , the ventilation cylinder is provided with a recessed piece at an appropriate location on the outer periphery of the fitting cylinder, and the recessed piece is brought into contact with the back surface of the wall and is connected to the flange of the fitting cylinder. It is formed from an abutting piece that grips the body and a biting piece that bites into the wall.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Figure 1 shows a wall, for example, a unit room, formed by assembling elastic gypsum board, etc.
In the illustrated example, the fitting opening B ₁ opened in the ceiling wall B
It is a vertical front view showing a state in which a ventilation device A is fitted and equipped on a ceiling wall B after the ventilation device A is installed.
It is connected to a ventilation duct 1 that serves as a ventilation passage communicating with the outside at the rear, and exchanges the air within the room.

The ventilation device A has a ventilation cylinder 2 that fits into the fitting opening B ₁ of the ceiling wall B and connects with the ventilation duct 1 behind it, and is removably installed inside the cylinder 2 to secure a ventilation path 3 of a predetermined area. At the same time, at appropriate locations on the outer periphery of the ventilation cylinder body 1, biting pieces 5 are provided, which are bitten into and fixed to the back surface of the ceiling wall _B after being inserted and fitted into the fitting opening B1. .

The ventilation cylindrical body 2 is integrally molded from synthetic resin, metal, etc., and gradually increases in a curved manner from the middle part in the cylindrical direction toward the outer periphery of the opening edge at the front, so that the outer diameter of the opening edge is equal to the diameter of the fitting opening _B1 . A fitting cylindrical portion 2a having approximately the same diameter as the fitting cylindrical portion 2a is formed, and a connecting cylindrical portion 2b for connecting the ventilation duct 1 is formed toward the rear opening edge of the fitting cylindrical portion 2a.

Attachment portions 6 for screwing and fixing the biting pieces 5 are integrally formed at appropriate locations on the outer periphery of the fitting cylinder portion 2a, in the illustrated example, at three locations at appropriate intervals toward the outer periphery of the opening edge. At the same time, a flange 7 is integrally formed to protrude from the outer peripheral edge of the opening.

Furthermore, on the inner circumference of the boundary between the fitting cylindrical portion 2a and the connecting cylindrical portion 2b, locking pieces 9 are formed at several locations, three in the illustrated example, protruding toward the center via the locking steps 8. The upper surface of each locking piece 9 has a locking protrusion 9'.
... are provided respectively, and the blindfold plate 4 is detachably attached and fixed thereto.

The blinding plate 4 is made of the same material as the ventilation cylinder 2, and is formed into a dish shape having an outer diameter smaller than the inner diameter of the opening edge of the fitting cylinder 2a. Suspension pieces 4a . . . that slope radially upward are integrally formed on the curved outer surface at appropriate intervals on the circumferential edge centered on the curved tip of 4.

At the tip of each hanging piece 4a, a ring-shaped mounting plate 4b is integrally formed, the mounting plate 4b having an outer diameter approximately the same as the inner diameter of the locking step 8 provided on the inner circumference of the ventilation cylinder body 2, and an inner diameter smaller than the outer diameter of the privacy plate 4.

Mounting pieces 4c are formed protruding in an L-shape at appropriate locations on the upper surface of the mounting plate 4b, that is, locations corresponding to the locking pieces 9 provided on the inner periphery of the ventilation cylinder 2.

Then, the blind plate 4 is attached to the upper surface of the outer peripheral edge of the mounting plate 4b on the upper surface of the locking step 9 in the ventilation cylinder 2, and the mounting plate 4b is rotated in the direction of the arrow in FIG. 4c... to each locking piece 9.... In detail, the upper and lower surfaces of each locking piece 9... are attached to the mounting plate 4b and the mounting piece 4.
By attaching it so as to press and enclose it with c..., it is provided in a suspended state within the fitting cylinder part 2a of the ventilation cylinder body 2.

The blind plate 4 forms a ventilation passage 3 between its curved upper surface and the inner peripheral surface of the fitting cylinder 2a, and also serves to hide the ventilation passage in the ventilation duct 1 from being visible from inside the room. Figure 1).

In the above embodiment, the curved inner surface (recessed surface) of the blindfold plate 4 was installed inside the ventilation cylinder 2 with the curved inner surface (recessed surface) facing downward, that is, toward the inside of the room. The blind plate 4 may be attached toward the passageway side, and the means for attaching the blind plate 4 to the ventilation cylinder 2 is not limited to the structure detailed in the above embodiment. Any device may be used as long as it can be attached and detached while ensuring the following.

As shown in FIG. 3, the biting body 5 is formed by bending one end of a metal band-shaped plate at a desired angle and screwing it onto the upper surface of a mounting portion 6 provided on the outer periphery of the fitting cylinder portion 2a. A fastening piece 5a is provided, and a notch is carved in the shape of a steeple toward the edge of the other end, leaving the edge intact, and the outer peripheral edge thereof is bent in the direction in which the fastening piece 5a is bent. The abutting piece 5b is formed by bending in the opposite direction and parallel to the fastening piece 5a, and the tip is slightly curved in the direction of bending the abutting piece 5b in the lower part to form a spire-shaped bite. Katabe 5
It forms c.

After the fastening piece 5a of the biting piece 5 is integrally screwed and fixed to the mounting part 6 on the outer periphery of the fitting cylinder part 2a fitted into the fitting opening _B1 of the ceiling wall B, The biting piece 5c is bitten into the ceiling wall B until the abutment piece 5b abuts the back surface (upper surface) of the ceiling wall B.

That is, in this embodiment, the contact piece 5b of the biting piece 5 abutted against the back (upper surface) of the ceiling wall B and the fitting opening B ₁
a gripping structure that grips the ceiling wall B from both sides by the flange 7 of the fitting cylinder part 2a that comes into contact with the periphery of the opening edge; and a biting piece part 5c that is bitten into the ceiling wall B from the back side thereof. The ventilator A is fitted and attached to the ceiling wall B in a strong fixed state by the biting locking structure to the ceiling wall B.

In addition, in attaching the biting piece 5, after screwing and fixing the fastening piece 5a to the attachment part 6 on the outer periphery of the fitting cylinder 2a, the biting piece 5c is bitten into the ceiling wall B. Alternatively, after biting the biting piece 5c into the ceiling wall B, the fastening piece 5a may be screwed and fixed to the mounting part 6 on the outer periphery of the fitting cylinder part 2a. be.

Since the ventilator of the present invention is constructed as described above, it exhibits the following effects.

A gripping structure that grips the wall from both sides by a contact piece of a biting piece that abuts on the back side of the wall and a flange of a fitting cylinder that abuts the periphery of the opening of the fitting opening, and the wall. The ventilator can be fitted and attached to the wall in a strong fixed state due to the biting and locking structure of the biting piece part biting into the body from the back side to the wall. Therefore, the ventilation device can be mounted on the wall with a stable mounting structure for a long period of time without wobbling.

Since the ventilation cylinder is constructed by installing a blind plate inside the cylinder so as to secure a ventilation path with a predetermined area, the ventilation device can be prevented from protruding into the room by fitting it into contact with the periphery of the opening of the fitting opening. Only the flange of the joint tube portion, ie, only the flange from inside the room, is visible to the user. Therefore, the aesthetic appearance of the interior of the unit room is not impaired.

Thus, the intended purpose can be achieved.

[Brief explanation of the drawing]

Fig. 1 shows the installed and fixed state Fig. 2 -
FIG. 2 is a plan view, and FIG. 3 is a perspective view showing a biting piece. In the figure, A... Ventilator, B... Wall, B ₁ ... Fitting opening, 2... Ventilation cylinder, 4... Blindfold plate, 5...
Biting piece, 5b...Abutment piece part, 5c... Biting piece part.

Claims (1)

[Scope of utility model registration request] It is equipped with a ventilation cylinder that fits into a fitting opening made in the wall and connects to the ventilation duct behind it, and a blind plate that is installed inside the cylinder and secures a ventilation passage of a predetermined area. A biting piece is provided at an appropriate location on the outer periphery of the fitting cylindrical part, and the biting piece is a contact piece part which abuts against the back surface of the wall and grips the wall by the flange of the fitting cylindrical part. , and a recessed piece that is recessed into the wall.