JPH0347509A - Filter for cooking oven hood - Google Patents

Abstract

PURPOSE:To easily and surely perform washing of the lath metallic plates functioning as a filter by holding a plurality of sheets of lath metallic plate being in the state of a laminated layer to a filter supporting frame which is formed into a frame shape having a rectangular shape in a freely holdable state. CONSTITUTION:A lath metallic plate A has the network opening parts and is utilized as a filter. This lath metallic plate A is held in a slide type to the inside of a filter supporting frame 2 which is formed into a rectangular shape forming the outer frames. This supporting frame 2 is formed into the frame shape having the rectangular shape. Three sides thereof are formed into a gutter shape whose cross-section has a U-channel shape and only the residual one side is formed into a plane shape. This one side part is constituted of both a supporting frame main body 6 formed into a lath metal inserting part 5 and a cover body 7. This cover body 7 is engaged with the lath metal inserting part 5 in order to freely open and close this inserting part 5 and formed of the gutterlike member whose cross-section has the U-channel shape. A plurality of sheets of lath metallic plate A are held in the state of a laminated layer to the inside of the supporting frame 2. As a result, washing of the lath metallic plates functioning as the filter can be easily and surely performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a range hood filter, and more particularly, to a type of filter that uses laminated lath metal plates having wire-shaped openings as a filter. be.

[Conventional technology]

A range hood that combines a hood and a ventilation fan is one of the means for discharging oil-containing air generated in a kitchen. The lower surface of this range hood that opens above the stove is usually equipped with a filter to capture oil in the air to prevent oil from adhering to the ventilation fan itself, its surroundings, and inside the duct. As a filter to be attached to the range hood, a filter formed by holding a lath metal plate having a mesh-like opening by a rectangular frame is mainly used. As shown in FIGS. 17 to 19, in the lath metal vi, (A), each strand (C) forming the net-like opening (B) is inclined at a predetermined angle. Inside the opening (B), oil,
In other words, when air containing oil mist tries to pass through, the air is reflected and refracted by the inclined surface of the strand (C), and this reflection and refraction causes the air to collide with each other, which causes the oil mist in the air to Strand (C
) is collected and adhered to the surface. Therefore, if this lath metal plate (A) is used as a filter, the size of the opening (B) of the lath metal plate (A), that is, the opening ratio, can be adjusted without much loss of suction pressure due to the range hood, and
Even if the size is large enough to prevent clogging due to oil film, it is possible to sufficiently capture oil mist for the above-mentioned reasons, so it is used as a range hood filter, as described above. In addition, this type of filter has a structure in which a plurality of lath metal plates (A), usually 2 to 3 plates, are stacked and held by a frame.
By increasing the change in fluid flow due to the inclination of the strand (C) and increasing the surface area of the entire strand (C), the oil mist capture rate is improved and the filter effect can be fully exerted.

[Problem to be solved by the invention]

In the case of forming a range hood filter using the lath metal plate (A) as described above, the lath metal plate (A)
When a plurality of sheets of A) are stacked, a sufficient filter effect can be ensured, but there is a problem in that when the filter is removed from the range hood and washed after being used for a predetermined period of time, the washing cannot be done sufficiently. In other words, lath metal plate (
If you try to clean a filter made by laminating two layers of A), each lath metal! Of both the front and back surfaces of &(A), the surface facing the outside of the filter can be cleaned relatively easily, but it is very difficult to thoroughly clean the surface facing the inside of the filter. Furthermore, in a filter formed by laminating three lath metal plates (A), the lath metal plate (A) located in the middle cannot be cleaned at present. Therefore, once a predetermined amount or more of oil adheres to the filter, there is a problem in that no matter how much the filter is washed, the clogging cannot be completely eliminated.

[Means to solve the problem]

The present invention has been proposed to solve the above problems, and the first invention includes a range hood filter that includes a rectangular filter support frame that forms an outer frame, and a slide-type filter that is inserted into the filter support frame. The filter support frame has a rectangular frame shape, and three sides of the filter support frame have a cross-sectional shape. The main body of the support frame has a gutter-like shape, and only one side is flat, and this one side is the insertion part of the lath metal, and the insertion part of the lath metal of the support frame main body is closed so that it can be opened and closed. In order to do this, the filter is constructed with a lid body made of a gutter-like member having a U-shaped cross section that fits into the lath metal insertion portion, and a plurality of lath metal plates are housed in 81 layers in the filter support frame. This is what I did.

In addition, in the second invention, the support frame main body constituting the filter support frame is formed by bending a flat band-like plate into a gutter shape with a U-shaped cross section, and two parts of the gutter-shaped band plate are bent. It is composed of a frame body formed into a U-shape by bending at right angles, and a flat plate-shaped reinforcing plate bridged between both ends of the frame body.

In a third aspect of the invention, a spacer formed by bending a shaft into a U-shape or a rectangular shape is interposed between a plurality of lath metal plates housed in a stacked state within a filter support frame.

[Effect]

As described above, the present invention allows a plurality of lath metal plates in a stacked state to be held in a rectangular frame-shaped filter support frame in a state where they can be freely stored, and when cleaning the lath metal plates, the lath metal plates are removed from the filter support frame. Wash it in the same condition.

(Example) FIGS. 1 and 2 show a first example of a range hood filter (1) according to the present invention. In the figure, (2) is a rectangular filter support frame that forms the outer frame of the range hood filter (1), and (A) is a rope that is slidably housed in the filter support frame (2). This is a lath metal plate that has mesh-shaped openings (B) and slanted strands (C), and acts as a filter. As shown in FIG. 3, the filter support frame (2) is formed by punching out the center of a rectangular flat plate to form a rectangular frame plate (4) having an opening (3) in the center; This frame board (
By bending a pair of opposing long sides (A) and (B) and one short side (C) of 4) into a U-shaped cross section along the dashed-dotted line in the figure, As shown in Fig. 6, three sides (a), (b), and (c) are gutter-shaped with openings facing inward, and only one remaining side (d) is flat plate-shaped.
A skeleton is formed by the support frame main body (6) whose negative side (d) is the lath metal insertion portion (5).

Further, a lid body (7) having a U-shaped cross section as shown in FIGS. 7 and 8 is removably attached to the lath metal insertion portion (5) of the support frame body (6). In addition, the inner dimensions (fi) of the openings on the long sides (A), (B) and short sides (C) of the support frame body (6), which is bent into the shape of a gutter, are determined by the filter support frame (2). The dimensions are set to be large enough to accommodate a plurality of held lath metal plates (A), in this embodiment two lath metal plates stacked one on top of the other.

Further, cut and raised pieces (6a) and (7a) are formed on the flat short side (d) located in the lath metal insertion part (5) and on the side side of the opening of the lid body (7), respectively. The cut and raised piece (7a) on the lid side is provided with a folded part (7b) for engaging with the cut and raised piece (6a) on the support frame body side. Then, while sliding the lid (7) from the side of the lath metal insertion portion (5) of the support frame body (6) along the short side (d), fit it onto the outer periphery of the lath metal insertion portion (5). At the same time, the folded part (7b) on the lid body (7) side is engaged with the cut and raised side (6a) on the support frame main body side. According to
Insert the lath metal insertion part (5) of the support frame body (6) into the lid body (7).
) so that it is occluded. Also, the lath metal plate (A) whose outer peripheral edge is held by the filter support frame (2) described above is cut into a rectangular shape like the filter support frame (2), and the long side and The dimension on the short side is set to be slightly shorter than the inner dimensions on the long side and short side of the filter support frame (2).

In the above configuration, in order to use the range hood filter (1) according to the present invention, first, the lath metal insertion portion ( From 5), two laminated metal plates (A
) (A) into the support frame body (6), and insert the support frame body (
6) The gutter-shaped long sides (A), (B) and short sides (C) hold the peripheral edge of the lath metal plate (A) (A). Next, the lath metal insertion part of the support frame body (6) (5) by fitting the lid (7) to the lath metal insertion part (5).
) and prevent the lath metal plates (A) from being removed, thereby securely holding the two lath metal plates (A) in a stacked state inside the filter support frame (2). .

After that, in this state, set the range hood filter (1) in the range hood and use it. When a predetermined period of use has elapsed in this state and more than a certain amount of oil adheres to the lath metal plate (A) acting as a filter, the range hood filter (1) is removed from the range hood. Support frame body (6) of filter support frame (2)
After removing the lid body (7) from the support frame body (6), the two laminated metal plates (A) (A) are extracted from the support frame body (6). And these two lath metal plates (A) (A) are 1
After washing each piece separately, stack them again and hold them in the filter support frame (2) in the same manner as described above, and then use the washed range hood filter (1). Place it back into the range hood. in this way,
The range hood filter (1) according to the present invention can be cleaned with the lath metal plates (A) separated into - pieces when cleaning the filter, so oil adhering to the lath metal plate (A) can be easily and easily removed. It can be washed off reliably.

9 and 10 show a second embodiment of a filter support frame that holds two lath metal plates (A) and (A) in a laminated state, and the filter support shown in this embodiment The frame (20) is not formed by punching out two flat plates like the filter support frame (2) described above, but is formed by bending a band-shaped plate to avoid wasting material. It is something. That is, as shown in FIG. 11, after forming two pairs of opposing 7-shaped notches (22) and (23) on two side edges of the strip plate (21), the strip plate (21) In the figure, bend and form along the dotted chain line,
The strip plate (21) having a U-shaped cross section is formed into a gutter shape, and then the gutter-shaped strip plate (21) is bent at right angles around the locations where the notches (22) and (23) are formed, as shown in Fig. 12. Next, a reinforcing plate (25) in the shape of a strip as shown in FIG. 13 is bridged between both ends of the frame body (24), which is shaped like a U-shape. As a result, a support frame body (26) similar to that described above is formed. Both ends of the reinforcing plate (25) are L-shaped as shown in the figure, and these L-shaped parts (25a) (25a) are attached to the inner surfaces of both ends of the frame body (24) with rivets (25a). 27) By fixing using (27), the two are combined. In addition, the support frame body (2
The lid body (29) that closes the lath metal insertion portion (28) formed at the attachment position of the reinforcing plate (25) in 6) is constituted by a gutter-like member having a U-shaped cross section, as shown in FIG. As shown in FIGS. 9 and 10, one end of the reinforcing plate (25) is attached to the frame body (24) by a rivet (27") for fixing the reinforcing plate (25) to the frame body (24).
and the reinforcing plate (25), so that it is rotatably supported by the support frame body (26).

In addition, a rivet (27°°) is attached to the other end of the lid (29).
A hole (30) that fits with the head of the rivet (27") is bored when the lid is closed. By fitting this hole (30) with the head of the rivet (27") ) to prevent it from opening. In addition, the reinforcing plate (25) and the lid (29)
As in the first embodiment, cut and raised pieces (25b) (29
a) is a provision. And the above filter support frame (2
Two lath metal plates (A) in a laminated state due to 0) (
When holding A), the hole (30) of the lid (29) is removed from the head of the rivet (27''') of the support frame body (26), and the lid (29) is attached to the rivet (27'). After opening the lath metal insertion part (28) of the support frame body (26) by rotating the support frame body (26) approximately 90 degrees outward from the center, the support frame body is removed from the lath metal insertion part (28) as in the first embodiment. (2
6) Two lath metal plates (A) in a laminated state (A
), and after holding the peripheral edge of the lath metal plate (A) (A) by the support frame body (26), fit the lid body (29) into the lath metal insertion part (28), and insert the lath metal. Close the section (28) and remove the filter support frame (
20) to hold the lath metal plates (A) (A).

Also, when cleaning the lath metal plate (A), rotate the lid (29) outward and remove the lath metal insertion part (
After opening 28), remove the lath metal plate (A) (
A) may be pulled out to the outside, and then the laminated lath metal plates (A) and (A) may be separated into pieces and then washed.

In addition, in the above two embodiments, the filter support frame (2)
(20) An example was explained in which two lath metal plates (A) were stacked and stored in the filter support frame (20).
) (20) lath metal plates (
The number of laminated sheets in A) may be three or more. In addition, lath metal plates (A
) and the shape of the opening (B) and the strand (C) are as follows:
Of course, shapes other than those shown in FIGS. 7 to 19 may be used, and the shapes of the opening (B) and the strand (C) may be arbitrarily determined depending on the oil mist capture rate required of the filter (1), etc. will be changed to Also, filter support frame (2)
(20) When storing multiple sheets of lath metal Jffl (A) in a stacked manner, in addition to simply laminating the lath metal plates (A), between the laminated lath metal plates (A) (A),
As shown in Figures 15 and 16, the shaft is shaped like a U-shape,
Or a spacer (40) formed by bending into a rectangular shape.
(41) to improve the filter effect by storing it in the filter support frame (2) (20) with a slight space formed between the lath metal plates (A). You can do it like this.

[Effects of the Invention] As described above, the present invention allows a plurality of lath metal plates in a stacked state to be held in a rectangular frame-shaped filter support frame in a state where they can be freely stored. The laminated metal lath plates can be taken out from the filter support frame and cleaned one by one, and the lath metal plates functioning as filters can be easily and reliably cleaned. In addition, if the support frame main body constituting the filter support frame is constructed by bending a flat band-shaped plate, the frame-shaped support frame main body can be formed using the minimum necessary material,
Filters for range hoods can be manufactured at low cost. Furthermore, the filter effect can be improved by interposing a spacer between the lath metal plates housed in a stacked state to form some space between the lath metal plates.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a first embodiment of the range hood filter according to the present invention, FIG. 2 is a sectional view taken along the line II in FIG. 1, FIG. 3 is a developed view of the support frame body, and FIG. 4 is a plan view of the support frame body, Fig. 5 is a sectional view taken along the line Fig. 4 ■-■, and Fig. 6 is Fig. 4 ■
7 is a front view of the lid body, FIG. 8 is a sectional view taken along the line IV-IV in FIG. 7, and FIG. A plan view showing the embodiment, FIG. 10 is an enlarged cross-sectional view taken along the line
Fig. 1 is a developed view of the frame body, Fig. 12 is a plan view of the frame body, Fig. 13 is a plan view of the reinforcing plate, Fig. 14 is a plan view of the lid body, and Figs. 15 and 16 are details of the spacer. A plan view showing an example, FIG. 17 is a plan view showing an example of a lath metal plate,
FIG. 18 is a partially enlarged plan view of the lath metal plate, and FIG. 19 is a sectional view taken along the line Vl--Vl in FIG. (1)... - Range hood filter, (2) (20)
---Filter support frame, (A)-Rath metal plate, (5) (28L--Rath metal insertion part, (6)
(2G) --- Support frame body, (7) (29),
-1~Lid body, (40) (41)--Spacer.

Claims (3)

[Claims] (1) Consisting of a rectangular filter support frame that forms an outer frame, and a lath metal plate that is slidably housed within the filter support frame and has a mesh-like opening and is used as a filter; The filter support frame has a rectangular frame shape, and three sides of the frame have a gutter shape with a U-shaped cross section,
Only the remaining side is flat, and this one side is the lath metal insertion part of the support frame body, and the lath metal insertion part of the support frame body is closed so that it can be opened and closed, so it fits into the lath metal insertion part. and a lid body made of a gutter-like member having a U-shaped cross section, and a plurality of lath metal plates are housed in a stacked state within the filter support frame. . (2) The support frame body that constitutes the filter support frame is formed by bending a flat band-shaped plate into a gutter shape with a U-shaped cross section, and bending the gutter-shaped band plate at two places at right angles. 2. The range hood filter according to claim 1, comprising a frame body formed in a U-shape and a reinforcing plate in the shape of a flat plate bridged between both ends of the frame body. (3) A spacer formed by bending a shaft into a U-shape or a rectangular shape is interposed between a plurality of lath metal plates housed in a stacked state within the filter support frame. range hood filter.