JPH0248011Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a disposable device that is used by being attached to the intake port of a range hood that is placed above a cooking appliance such as a gas range to exhaust smoke. Regarding filters for type range hoods.

(Prior art) Generally, this type of range hood has a guard wire mesh, a special filter, a grease filter, etc. installed over the intake port that opens towards the gas range, covering the opening surrounding wall of the intake port. A rotating exhaust fan is used to forcibly exhaust oil smoke, odors, etc. However, since gas ranges are usually used frequently, the above-mentioned wire mesh, etc. is used to protect the surrounding wall of the intake opening, as well as the rotating exhaust fan, etc. is contaminated early by oil smoke, etc., and if left unattended, the oil that adheres and solidifies becomes droplets and falls onto the gas range, resulting in an unsanitary situation.

In order to prevent such inconveniences, replaceable filters that are attached to the intake ports of range hoods have been proposed in recent years.

Traditionally, this type of filter has a rectangular aluminum body frame with a filter surface, with flaps extending on the sides, each of which is bent to form a box shape, and facing each other with the body frame in between. Permanent magnet pieces were attached to each of the pair of flaps via double-sided adhesive tape, and when attached to the intake port, these permanent magnet pieces were to be magnetically attracted to the metal wall surface of the opening peripheral wall.

(Problem to be solved by the invention) However, in the filter of the conventional structure as described above, after it is attached to the range hood, oily smoke adheres to the double-sided adhesive tape that fixes the permanent magnet piece to the main body frame, and Frequent exposure to high heat caused the filter to lose its adhesive strength over time, and there was a risk that the filter would eventually fall onto the gas range.

The present invention was devised to solve these conventional problems, and is designed to prevent the flap from separating from the permanent magnet piece even under adverse conditions such as being covered with oil smoke or being exposed to high heat. The purpose of the present invention is to provide a range hood filter that is highly safe after installation.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in the present invention, at least one pair of rectangular main body frames made of an aluminum sheet having a filter surface are provided on the side sides of the rectangular main body frame with the main body frame in between. A range hood filter having extended flaps and a permanent magnet piece attached to each flap, wherein a recess for attaching the permanent magnet piece is formed in each flap, and the outer periphery of the flap is wrapped. On the other hand, the permanent magnet piece is fixed to a fixing member, flanges are extended on both sides of the fixing member, caulking holes are formed in each of the flanges and the recess, and caulking holes are formed in both of the caulking holes. The fixing member is caulked in the recess by the caulking member that has been inserted, and in this caulked state,
The attracting surface of the permanent magnet piece is configured to protrude slightly from the open end surface of the recess.

(Function) According to the above configuration, each permanent magnet piece is inseparably fixed to the flap through the fixing member by caulking, so the permanent magnet piece and the flap are not exposed to oily smoke or exposed to high heat. It will not separate even if Therefore, the filter can be stably attached over a long period of time by adsorption of the permanent magnet piece to the wall surface of the intake opening of the range hood, and can be prevented from falling off from the intake opening.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. The range hood filter shown in FIGS. 1 to 5 has a rectangular body frame 1 made of an aluminum sheet with vertical and horizontal dimensions of about 30 cm x 40 cm, and a filter member made of, for example, a fiber web with a small basis weight is attached to it. A filter surface 2 is formed. This filter surface 2 is partitioned by three vertical reinforcing bars and one horizontal reinforcing bar 3 left in the open part of the main body frame 1, and the filter member is divided between the main body frame 1 and each reinforcing bar 3... It is glued on the back side.

Short flaps 4, 4 each having a width of about 3 cm extend on the outside of one opposing side of the main body frame 1, and each short flap 4, 4 has a single folding line a. It is formed. Furthermore, long flaps 5, 5 each having a maximum width of approximately 8 cm extend outside the other opposing side of the body frame 1, and each long flap 5 has a first flap along each side. A crease line b and a second crease line c located in the middle in the width direction are formed, and a first crease line c located inside the second crease line c is formed.
The second flap portion 5b located outside the fold line c is approximately half the length of the flap portion 5a. The peripheral edges of the flaps 4.5 extending from each side of the body frame 1 are all wrapped around and reinforced, and a large number of reinforcing ribs 6 are provided at predetermined intervals along the length of each flap. is formed.

3 and 4, a rectangular recess 7 recessed from the back side to the front side is formed in the center of the second flap portion 5b of each of the long flaps 5. A rectangular block-shaped permanent magnet piece 9 is fixed via a fixing member 8.

In FIG. 5, the fixing member 8 has bending allowances extending on both long sides of a rectangular metal plate, and these bending allowances are bent in the same direction to form a U-shaped magnet fixing part 10. , caulking holes 12, 12 are formed through the flanges 11, 11 extending on both sides of the magnet fixing part 10, and the permanent magnet piece 9 is fixed to this magnet fixing part 10 by a method such as gluing. It has been done. In addition, in this fixed state, both side walls 10a, 10a of the magnet fixing part 10 are made to protrude from the attracting surface 9a of the permanent magnet piece 9 by about 0.1 to 2.0 mm, thereby maximizing the attracting force. It is something. On the other hand, caulking holes 13, 13 are transparently provided in the bottom wall portion 7a of the recess 7 at the same intervals as the caulking holes 12, 12. After aligning the holes 12 and 13, a caulking member 14 such as an eyelet is inserted through both of the caulking holes 12 and 13, and then caulked.

In this caulked state, the flat attraction surface 9a of the permanent magnet piece 9 faces the back side of the second flap portion 5b, and this attraction surface 9a protrudes from the open end surface of the recess 7 by about 1 to 3 mm.

When the range hood filter having the above structure is attached to a shallow range hood, for example, the long and short flaps 5 and 4 are bent toward the back side from the folding line a and the first folding line b, respectively, and each permanent magnet piece 9 is It is best to attach it by adsorbing it to the opening peripheral wall of a range hood (not shown).

In addition, in the above-mentioned embodiments of the present invention, the permanent magnet pieces 9 are disk-shaped, and the disk-shaped permanent magnet pieces are attached to one place in the center or two places on both ends of each magnet fixing part 10. It can also be used as a thing.

(Effect of the invention) In this way, the range hood filter according to the present invention has each permanent magnet piece fixed to the fixing member as a caulking member and is inseparably fixed to the flap by caulking. Unlike attaching permanent magnet pieces to flaps using adhesive tape, this method is not affected by the adhesion of oily smoke or high heat generated during cooking. Therefore, until the end of the service life of the filter, the permanent magnet piece is adsorbed to the wall surface of the intake opening of the range hood, so that it is stably attached for a long period of time, and it is possible to reliably prevent the filter from falling off from the intake opening. . In addition, the flap to which the permanent magnet piece is attached is reinforced by wrapping around the outer periphery, making it durable, and it can be easily attached and detached by simply placing the permanent magnet piece against the opening wall or holding the flap and pulling it. Further, since the permanent magnet piece is fixed in the recess, it can be attached with as little gap as possible between the opening wall surface and the flap surface.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a sectional view taken along the cutting line - in Figure 1,
FIG. 3 is an enlarged sectional view taken along the cutting line - in FIG. 1, FIG. 4 is an enlarged sectional view taken along the sectional line - in FIG. 3, and FIG. 5 is a perspective view showing the fixed member and the permanent magnet piece taken out. It is a diagram. DESCRIPTION OF SYMBOLS 1... Body frame, 2... Filter surface, 5... Flap, 7... Recessed part, 8... Fixing member, 9... Permanent magnet piece, 9a... Attraction surface of permanent magnet piece, 11...
...Flame portion, 12, 13...Clinching hole, 14...Clinching member.

Claims (1)

[Scope of utility model registration request] At least one pair of flaps 5, 5 facing each other with the main body frame 1 in between are extended on the sides of a rectangular body frame 1 made of aluminum sheet having a filter surface 2, and a permanent magnet piece 9 is attached to each flap 5. In the attached range hood filter, a recess 7 for attaching the permanent magnet piece 9 is formed in each of the flaps 5, and while the outer periphery of the flap 5 is wrapped, the permanent magnet piece 9 is attached to the fixing member 8. , and flanges 11 and 11 are extended on both sides of the fixing member 8, and caulking holes 12 and 13 are formed in each of the flanges 11 and the recess 7, respectively. , 13, and caulk the fixing member 8 to the recess 7. In this caulked state, the attracting surface 9a of the permanent magnet piece 9 is moved from the open end surface of the recess 7. A range hood filter characterized by a hazy protrusion.