JPH083862Y2 - Ventilation fan cover - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a ventilation fan cover attached to a ventilation port to which a ventilation fan is attached.

[Problems to be solved by conventional techniques and devices] Conventionally, in order to prevent damage to the blades, increase in load on the motor, and failure due to inflow of dust and foreign matter, a ventilation fan cover is attached to a ventilation port in a room or the like. There is. This ventilation fan cover
Usually, it is composed of a frame body having a predetermined size adapted to a rectangular ventilation port, and a filter attached to the frame body.

On the other hand, the ventilation port to which the ventilation fan is attached is set to various sizes according to the volume of the ventilation section, the ventilation volume, etc. in order to efficiently perform ventilation. For example, a ventilation fan for a kitchen, a ventilation fan for a range hood, a ventilation fan for business use, and the like at home have different ventilation amounts, and a ventilation port having a size corresponding to the ventilation amount is required.

Therefore, it is necessary to prepare various kinds of ventilation fan covers suitable for the ventilation port in order to mount it on the ventilation ports of different sizes. Also, since it is necessary to manufacture a large number of ventilation fan covers of a size suitable for the ventilation port, production control and quality control become complicated.

The present invention has been made in view of the above problems,
Even if the size of the ventilation port is different, it can be easily fitted by adapting to the size of the ventilation port, the filter can be easily attached and detached, and the entire filter can be surely supported while the entire filter is almost supported. The purpose of the present invention is to provide a ventilation fan cover that can be used to remove dust and the like and has a large effective area of the filter.

[Means for Solving the Problems] The present invention is a ventilating fan cover having a rectangular frame body and a filter detachably attached to the frame body, wherein the frame body has a grid-like linear shape. A body is composed of a plurality of frame members attached in an arch shape, the plurality of frame members are arranged in a lateral direction so as to face each other, and are adjacent to each other and extend in the same direction. With the ventilation fan cover, which is slidable and fixable by a ring, and provided with hook-and-loop fasteners for detachably attaching the ends of the filter to the outer surface of each side of the rectangular frame, It solves the problem.

[Operation] According to the ventilation fan cover having the above configuration, since the frame body is composed of a plurality of frame members and is expandable and contractable in one direction,
Even if the size of the ventilation opening is different, the size of the ventilation fan cover can be adjusted according to the size of the ventilation opening by expanding and contracting the frame member.

Further, since a grid-like linear body is attached to each frame member in an arch shape, the frame member and the linear body, which are adjacent to each other and extend in the same direction, are slid and fixed by a ring. However, the arch-shaped linear body and the frame member can reliably and firmly support the entire filter including the outer side surface for ventilation.

Moreover, since the member attached to each frame member is a linear body, almost the entire filter can be used to remove dust and the like, and the arch-shaped member is supported by the frame member, so that the reinforcing and supporting While maintaining the property, the filter on the side surface can also be used for ventilation and removal of dust, and the effective area of the filter can be increased.

Further, since the frame member and the linear body which face each other can be slidably and fixed by a ring, respectively, the filter can be reliably supported and sufficient strength can be obtained even when the frame body is extended. Therefore, the effective area of the filter can be increased while securely and firmly supporting the entire filter.

Moreover, by using the surface fasteners provided on each side of the rectangular frame, the filter can be easily attached to and detached from the outer surface of the frame member without impairing the slidability of the member. Inhalation can be prevented.

Embodiment Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of the ventilation fan cover of the present invention, FIG. 2 is a side view showing a contracted state of the ventilation fan cover shown in FIG. 1, and FIG. 3 is a ventilation fan cover shown in FIG. It is a schematic plan view which shows a contracted state. In FIG. 3, the auxiliary frame member is omitted for clarity.

The ventilation fan cover includes a rectangular frame body composed of a plurality of frame members (1a) and (1b) and reinforcing auxiliary frame members (2a) and (2b) having the same shape as the frame members (1a) and (1b). ), And the linear members (3a) (3a) (3a) (3a) (3a) (3a) (3a) (3a) (3a) mounted in parallel in one direction of each frame member (1a) (1b)
b) and the linear bodies (4a) (4b) mounted in parallel in the other direction in an arch shape, and the linear bodies (3a) (3b) (4a) (4b)
And the filters (5a) and (5b) attached to the frame members (1a) and (1b) while being supported by.

More specifically, the frame members (1a) (1b) and the auxiliary frame members (2a) (2b) that are adjacent and extend in the same direction are
The linear bodies (4a) and (4b) are slidably contactable with each other, and the frame members (1a) and (1b) and the auxiliary frame members (2a) and (2b) are slidable with each other. Installed in position. Further, in this example, the frame members (1a) (1b) have a rectangular cross section, and the auxiliary frame members (2a) (2b) and the linear bodies (3a) (3b) (4a) (4b) have a circular cross section. It is formed in a shape. Furthermore, piles and hook claw pieces (not shown) that are detachably engaged with each other are attached to the ends of the filters (5a) and (5b) and the outer surface of each side of the rectangular frame. And constitutes a surface fastener.

And as shown in FIG. 4 and FIG. 5, in order to make each frame member (1a) (1b) expandable, each frame member (1a)
A linear body in which an end portion of (1b) is slidably inserted into a plurality of first rings (6a) and (6b) having a C-shaped cross section which are separated by a predetermined distance, and which is attached in one direction. (4a)
The ends of (4b) are slidably inserted into the second rings (7a) and (7b), respectively.

In addition, in order to prevent the frame members (1a) and (1b) from coming off from the first rings (6a) and (6b) at the ends of the frame members (1a) and (1b) Projection (not shown)
Are formed.

According to the ventilation fan cover configured as described above, since the frame members (1a) (1b) and the linear members (4a) (4b) that are adjacent to each other and extend in the same direction can be slidably expanded and contracted, the size of the ventilation opening can be increased. Even if they are different, one ventilating fan cover can be easily attached to ventilation openings of various sizes. Also the first ring (6a)
Since (6b) is formed into a C-shaped cross section, the open ends of the rings (6a) (6b) should be closed with the frame members (1a) (1b) contracted to a size suitable for the ventilation opening. By compressing by a method such as pinching or crushing, expansion and contraction of the frame members (1a) and (1b) can be restricted, and the ventilation fan cover can be fixed. Further, since the filters (5a) (5b) can be freely attached to and detached from the frame members (1a) (1b), even if there is a margin in the filters (5a) (5b) with the filters (5a) and (5b) attached to the ventilation ports, ) (5b) can be cut off to obtain filters (5a) and (5b) of a size suitable for the ventilation port. The reinforcing auxiliary frame members (2a) and (2b) are attached to the frame bodies (1a) and (1b), and the linear members attached to the frame bodies (1a) and (1b) in directions orthogonal to each other. Since (3a), (3b), (4a), and (4b) are arched, they are excellent in reinforcing property and can reliably support the filters (5a) and (5b).

The frame body is not limited to the two frame members as shown,
It can be composed of a plurality of frame members. Further, the frame member may be any member that can expand and contract to form a rectangular frame body such as a U-shape.

The frame member is not limited to have a rectangular cross section, and may have an L-shaped cross section in which the inner end portion is bent inward when attached to the ventilation port. When the frame member is configured with the frame member having such a shape, the inwardly bent portion and the flange portion of the side wall of the ventilation port can be locked at the time of mounting to the ventilation port, and the mounting can be performed securely and firmly. . Further, a fixing member such as a screw may be provided on the side portion of the frame member in order to firmly fix it to the ventilation port.

Further, the frame member may be engraved with scales corresponding to the standard dimensions of the plurality of ventilation ports. When such scales are engraved, the degree of expansion and contraction of the frame member can be easily adjusted according to the size of the ventilation port. Furthermore, the frame member and the ring may be formed with positioning irregularities or the like that engage with each other at predetermined intervals within a range that does not impair the elasticity. In this case, as the frame member expands and contracts, the frame member and the ring engage with each other at the concave and convex portions, so that the expansion and contraction degree of the frame member can be adapted to the size of the ventilation port.

Further, in the above embodiment, the auxiliary frame member is not always necessary. Further, the auxiliary frame member may be slidably inserted into the first ring together with the frame member, or the auxiliary frame member alone may be slidably inserted into another ring.

Further, the first and second rings can be provided in appropriate numbers on the frame member and the linear member that are adjacent to each other and extend in the same direction. The ring may be provided with a fixing member such as a screw that restricts expansion and contraction of at least one of the frame member and the linear member. In this case, it is not necessary to join the frame members by crimping the first ring by a method such as pinching or crushing. Further, one of the frame members inserted into the first ring may be fixed to the ring. Further, one of the linear members inserted into the second ring may be fixed to the ring.

Further, the filter may be detachably and fixedly attached by the hook and loop fastener in order to facilitate replacement and the like.

[Advantage of Invention] As described above, according to the ventilation fan cover of the present invention, since the frame body is composed of a plurality of frame members and is expandable / contractible in one direction, it is necessary to prepare a plurality of types of ventilation fan covers. And easily adapt to different size vents,
Can be installed.

Further, even if the frame member and the linear body which are adjacent to each other and extend in the same direction are slid, the lattice-shaped and arch-shaped linear body and the frame member can be fixed by the rings, respectively.
Ventilation is possible while firmly and firmly supporting the entire filter, and the filter does not wavy or be sucked by the ventilation fan. In particular, since the member is attached to the frame member in an arch shape, even if it is a linear body, it is possible to support the entire filter including the side surface while ensuring high reinforcement. Moreover, since the member attached to each frame member is a linear body, it is possible to prevent uneven flow of the air flow, and it is possible to use substantially the entire filter for removing dust and the like. That is, the effective area of the filter is large,
It is possible to remove dust and the like smoothly and efficiently while preventing a decrease in pressure loss. Further, since the frame member and the linear body can be slid by the respective rings, the opposing members can be configured to have substantially the same diameter, and uniform supporting force and reinforcement can be obtained.

Furthermore, since the filter can be attached and detached by the hook-and-loop fastener, a rubber cord or the like is not required, the filter can be easily attached and detached, and only the contaminated filter needs to be replaced. Further, the filter can be attached and removed without impairing the slidability of the member, and the filter can be fixed on each side of the frame,
The suction of the filter can be prevented.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the ventilation fan cover of the present invention, FIG. 2 is a side view showing a contracted state of the ventilation fan cover shown in FIG. 1, and FIG. 3 is a contraction of the ventilation fan cover shown in FIG. FIG. 4 is a schematic plan view showing the state, FIG. 4 is a sectional view of the first ring, and FIG. 5 is a sectional view of the second ring. (1) …… frame body, (1a) (1b) …… frame member, (5a) (5
b) ... filter, (6a) (6b) ... first ring, (7
a) (7b) …… Second ring

Claims (1)

[Scope of utility model registration request] 1. A ventilation fan cover comprising a rectangular frame body and a filter detachably attached to the frame body, wherein the frame body has a grid-like linear body attached in an arch shape. The frame member and the linear body, which are composed of a plurality of frame members, are arranged in the lateral direction so as to face each other and are adjacent to each other, and extend in the same direction, are respectively formed by rings. A ventilation fan cover that is slidable and fixable, and that is provided with hook-and-loop fasteners for removably attaching the ends of the filter to the outer surface of each side of the rectangular frame.