JPH11300130A - Filter device for range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter device capable of easily attaching and exchanging a filter to/from a filter device made of metal for range hood. SOLUTION: This filter device 1 for covering the filter made of metal 11 attachably and detachably arranged in a discharge port in a range hood is constituted of a filter 2 having such area that the front surface of the filter made of metal 11 is covered or wrapped and a string-shaped body 3 (such as the string-shaped body 3 contractible in the peripheral edge part of the filter 2) capable of fitting the filter 2 tensely on the front surface. This filter made of metal 11 may be constituted of plural filter elements made of metal 11a, 11b, 11c and the filter 2 may have such area that all the filter elements made of metal 11a, 11b, 11c or individual filter elements made of metal are covered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter device which can be mounted regardless of the size of a range hood or a metal filter (such as a plate-shaped metal filter) installed in the range hood.

[0002]

2. Description of the Related Art A range hood absorbs water vapor, dust, oily smoke, etc., and is therefore heavily soiled and requires a large amount of labor for cleaning. Therefore, a flat filter (sheet filter)
It is required that the filter be attached to the exhaust port of the range hood, and the filter contaminated with dust or oily smoke be easily replaced.

[0003] Japanese Patent Application Laid-Open No. 9-192428 proposes mounting a filter whose peripheral edge can be contracted on a range hood in order to facilitate replacement of the filter. The filter body includes a filter body having a portion formed therein, and a string-shaped body capable of contracting a peripheral edge of the filter body. In this document, the ventilation opening of the range hood (or the entire range hood) is covered with a filter,
It describes that a filter is attached by locking a string-like body to a side surface of a range hood body.

[0004] However, range hoods are available in various sizes, for example, with a hood width of 60 cm, 75 cm or 90 cm.
cm, and the metal filter installed in the range hood also differs depending on the manufacturer. Metal filters of various sizes (for example, 297 mm x 341 to 446 mm, 200 mm x 495 mm, etc.) are removable. Mounted as possible. Further, the mounting angle of the metal filter also differs depending on the manufacturer. Furthermore,
There is also a range hood where the hood expands and contracts in the depth direction. Therefore, there are many range hoods in which it is complicated to attach a flat filter.

[0005] Further, in the case of a flat filter, since the adhesion between the filter and the range hood (airtightness) is low, the filter is mounted on a mounting component (for example, disposed on the upper surface of the filter and magnetically attracted to the metal filter). Even if the filter is attached with great care using a magnet for holding the filter, dust and oil smoke enter the range hood through the gap between the filter and the range hood. Also, depending on the material of the metallic filter of the range hood, it may be difficult to attach the filter with a magnet or the like.

Further, when the flat filter is attached to a metal filter using a hook-and-loop fastener (magic tape) or a magnet, the filter hangs down due to the weight of the accumulated oil smoke (oil), or the filter is peeled off from the metal filter. May come off. And since the said range hood is located above a cooking appliance, the filter which hangs down, peels off or comes off may ignite, and there is a danger of a fire or a burn.

[0007]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a filter device which can be easily and easily attached to various range hoods and can be easily replaced, even if the size and the attachment angle are different. Is to do.
Another object of the present invention is to provide a filter device that can easily attach and replace a range hood to a metal filter, can be tightly mounted on the metal filter, and can effectively prevent contamination of the range hood. is there.

[0008]

Means for Solving the Problems The present inventor has made intensive studies to achieve the above object, and as a result, has set the front surface of a metal filter detachably disposed at the exhaust port of a range hood,
When the peripheral part is wrapped with a shrinkable filter, the filter can be tensioned on the front surface, stably covered and mounted, and can be easily replaced, even if the size of the metal filter is different. Completed the invention.

That is, the filter device of the present invention is a filter device for covering a metal filter (such as a plate-shaped metal filter) detachably provided at an exhaust port in a hood of a range hood, The filter comprises a filter capable of covering the front surface of the metal filter, and a string-shaped member for attaching the filter to the metal filter by tensioning the filter on the front surface. The metal filter is usually composed of a single metal filter or a plurality of metal filter elements. When the metal filter is composed of a plurality of metal filter elements, the filter device of the present invention includes a filter capable of enclosing all or individual metal filter elements of the plurality of metal filter elements, and a filter for the filter. The peripheral part can be constituted by a contractible string-shaped body.

[0010] In such a filter device, the front surface of the metal filter or the filter element is covered or covered with the filter, and the front surface of the metal filter or the filter element is covered with a string-like body attached at an appropriate position such as a peripheral portion of the filter. The filter device can be securely and stably attached by a simple operation of tensioning the filter, and the filter can be prevented from being detached from the metal filter or its components. For example, a metal-like filter or a component thereof is covered or covered (enclosed) by extending the peripheral portion of the filter by a cord-like body provided at the peripheral portion of the filter, and the back surface of the metal filter or the filter element is covered by the cord. When the extension of the cord is released, the filter device can be securely and stably attached by a simple operation of contracting the peripheral portion of the filter. Further, the filter can be replaced by an operation reverse to the above. In addition, the filter can be directly mounted on the metal filter without using a special mounting member (for example, a component such as a magnet) for fixing the filter, and the filter may drop depending on the mounting angle of the metal filter to cause a gap. In addition, the attachment parts do not move due to the suction force of the range hood, and the filter does not shift or fall off. Therefore, the filter can be stably mounted on the metal filter for a long period of time, and there is no danger of fire or burns. Further, since the filter can be tensioned on the front surface by the string-shaped body, the filter can be mounted even if the size of the metal filter of the range hood is different. In particular, when the peripheral portion of the filter can be contracted, the filter can be easily attached and detached.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a filter device according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example of a use state of the filter device of the present invention, and FIG. 2 is a perspective view showing a state in which the filter device of FIG. 1 is attached to an exhaust port of a range hood.

The filter device 1 has a filter 2 made of a non-woven fabric or the like, and an elastic cord 3 (rubber cord or the like) provided on the periphery of the filter. More specifically, the filter 2 is formed in a bag shape having an opening 5 in order to cover or enclose the metal filter, with the peripheral portion being bent inward over the entire periphery except for the central portion thereof. Have been. In the filter 2, an annular insertion hole 4 is formed at the edge of the opening 5, and the annular insertion hole 4 is shorter than the length of the annular insertion hole 4 and has elasticity, such as synthetic rubber. Is arranged. In addition, the central region of the filter 2 is provided in order to prevent generation of a surplus portion such as a waveform or a mountain shape in a state where the filter 2 is attached to the ventilation port.
In the attached state, a flat surface portion 2a is formed.

Such a filter device 1 is useful for covering a gas permeable metal filter 11 provided at an exhaust port in a hood of a range hood 10. In this example, the metal filter 11 is composed of a plurality of filter elements 11a, 11b, 11c formed in a square plate shape, and these filter elements are adjacent to the exhaust port of the range hood 10. It is arranged to be detachable. In this example, the hood section 10a of the range hood 10 can be pulled out from a storage section above the cooking section such as a gas stove to above the cooking section such as a gas stove.

The filter 2 has an area capable of covering or enclosing the metal filter elements 11a, 11b, 11c. That is, the opening 3 is expanded by extending the cord 3 of the filter 2, and the entire filter element 11 a, 11 b, 11 c or the front surface of the individual filter element is covered or covered, and the cord 3 is Of the metal filter elements 11a, 11
The filter 2 can be attached to b and 11c. In addition, metal filters 11a, 11
b and 11c can be attached to the exhaust port of the range hood 10. In the mounted state of the filter, the string-like body 3 contracts on the back surface of the metal filter elements 11a, 11b, 11c, and a tension or traction force acts on the filter on the front surface. High adhesion can be ensured without being released or falling off. Therefore, contamination of the range hood 10 can be effectively prevented. The operation of the filter 2 is the reverse of the above, ie,
After being taken out from the exhaust port of the range hood 10, the cord 3 can be easily removed by extending the cord 3 and expanding the opening 5, and the filter 2 can be easily replaced. further,
Since the peripheral portion of the filter 2 can be contracted by the cord 3, even if the size and the mounting angle of the metal filter elements 11 a, 11 b, and 11 c and the metal filter 11 are different, one filter can be used for various kinds of metal. It is possible to correspond to the filter made by the filter and its elements, and it is not necessary to prepare another kind of filter.

The filter 2 is preferably formed of a material having air permeability, particularly a flame-retardant nonwoven fabric.
Various fibers such as acrylic fiber and polyester fiber can be used for the flame-retardant nonwoven fabric. A flame-retardant fiber in which polyvinyl chloride is present in a fibril form in a polyvinyl alcohol matrix and a reinforcing fiber (for example, polyester fiber) ). The thickness of the fibers constituting the nonwoven fabric can be appropriately selected in consideration of the strength and air permeability of the filter. The thickness of the fiber is, for example, about 2 to 20 denier, and is often 10 denier or less (eg, about 5 to 10 denier). The filter only needs to have a size capable of covering or enclosing the front surface of the metal filter or the element thereof, and the central portion of the filter 2 needs to form a completely flush flat portion in the mounted state. However, a margin portion such as a waveform may be formed in a range in which drooping, suction into a ventilation port, and the like can be suppressed without impairing aesthetic appearance.

The annular insertion hole 4 can be formed by sewing a piece of cloth or the like to the filter, or by fixing or sewing a flexible annular member having an insertion hole to the filter 2.
The contraction rate of the cord 3 can be selected within a range in which the filter can be attached to the metal filter, and is, for example, about 5 to 60%. The shrinkage rate (r (%)) of the string is defined as L1 where the length of the string when no external force is applied and L2 where the maximum length of the string when it is extended. , R = (L1
/L2).times.100.

It is not necessary to accommodate the elastic string 3 in the annular insertion hole 4, and the elastic string 3 may be at least partially integrated with the periphery of the filter by a suitable means such as suturing. Further, the string-shaped body is not limited to a material having elasticity, and may be formed of a non-stretchable material. That is, an opening may be provided in the annular insertion hole 4, and the string may be inserted into the insertion hole in a state where both ends of the string are pulled out from the opening. In this case, the filter can be easily attached by fastening both ends of the string-shaped body in a state where a metal filter such as a metal filter is covered with the filter.

The filter may have a shape similar to the planar shape of the metal filter or filter element. For example, the filter may be a planar rectangular shape corresponding to a rectangular metal filter or filter element, and the string-like body is not limited to an irregular shape or a circular ring shape, but may be a square ring shape. .

Further, an annular insertion hole through which the string-like body can be inserted is not always necessary, and the string-like body expands and contracts at a plurality of positions (for example, 3 to 10 positions, particularly 4 to 10 positions) on the periphery of the filter. Alternatively, it may be integrated with the cord-like body in a form that can be inserted. FIG. 3 is a schematic rear view showing another example of a use state of the filter device of the present invention. For example, as shown in FIG. 3, the size of the metal filter 21 is larger than the front surface of the metal filter 21 and at least 4
A string-shaped body 23 such as a square ring may be inserted into the insertion part 24 at one corner (preferably at least one of the peripheral parts corresponding to each side). Even in such a filter device, in a mounted state, the string-like body 23 contracts on the back surface of the metal filter 21 and a tension or traction force acts on the filter 22 on the front surface. The filter can be tightly attached to the metal filter 21, and the filter does not come off or fall off the metal filter.

Further, the string-shaped body may be any one that can be attached to the metal filter or the filter element by tensioning the filter on the front surface of the metal filter or the filter element.
The present invention is not limited to the ring-shaped string attached to the peripheral portion of the filter. For example, it may be a ring-shaped body (especially an elastic string-shaped body) attached to a plurality of suitable places such as a corner portion of a filter and lockable to a metal filter or a filter element. Parts are attached to a plurality of appropriate places of the filter (for example, a plurality of places on the periphery of the filter, at least four corners for a square filter or a part in an inner region thereof), and the other end of the filter is made of a metal filter or a filter element. It may be a string-like body (stretchable string-like body) connected to a member that can be fixed or temporarily fixed to the back surface.

Various metal filters can be detachably attached to the exhaust port of the hood portion of the range hood, and the metal filter is usually plate-shaped and has rigidity in order to enhance the mountability to the exhaust port. . The metal filter can be formed of various metals such as an iron-based metal (such as stainless steel) and aluminum.

The mechanism by which the metal filter or the filter element can be attached to and detached from the exhaust port is not particularly limited. For example, the mechanism is formed above the exhaust port, and the upper end of the metal filter or the filter element can be inserted. A groove or a slit, a biasing member (a spring such as a leaf spring) provided in the groove or the slit, and a lower portion of the exhaust port,
In addition, the metal filter or the filter element can be configured with a groove into which a lower end portion can be inserted. In such a mechanism, the upper end of the metal filter or filter element is inserted into the upper groove or slit of the exhaust port and pushed up, and the lower end of the metal filter or filter element is inserted into the lower groove to be easily mounted. it can.

If necessary, a temporary fixing means such as a hook-and-loop fastener is attached to an appropriate portion of the peripheral edge of the rear surface of the metal filter, and the peripheral edge of the flat filter is entirely covered on the rear surface of the metal filter. It is also possible to adhere closely.

The present invention is applicable to various range hoods, for example,
The present invention can be applied to a range hood to which the hood portion 10a is fixed, a range hood from which the hood portion 10a can be pulled out as described above, a range hood in which the hood portion can be slid in the front-rear direction above a cooking portion such as a gas stove. Further, the range hood may be a shallow range hood or a deep range hood.

[0025]

According to the present invention, in a range hood, the filter can be easily and easily mounted on metal filters or filter elements of various range hoods having different sizes and mounting angles by tensioning the filter, and replacement is easy. is there. In addition, the filter can be prevented from being separated from the metal filter or the filter element, and the contamination of the range hood can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a use state of a filter device of the present invention.

FIG. 2 is a perspective view showing a state where the filter device of FIG. 1 is attached to an exhaust port of a range hood.

FIG. 3 is a schematic rear view showing another example of a use state of the filter device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Filter device 2, 22 ... Filter 3, 23 ... String-shaped body 4, 24 ... Insertion hole 10 ... Range hood 10a ... Hood part 11 ... Metal filter 11a, 11b, 11c ... Metal filter element

Claims (2)

[Claims] 1. A filter device for covering a metal filter detachably provided at an exhaust port in a hood of a range hood, the filter device being capable of covering a front surface of the metal filter; A filter device, comprising: a string for attaching the filter to the metal filter by tensioning the filter on the front surface. 2. A filter device for removably disposed at an exhaust port in a hood of a range hood and for covering a metal filter composed of a plurality of metal filter elements, wherein the plurality of metal filters are provided. 2. The filter device according to claim 1, comprising a filter capable of enclosing the filter element as a whole or an individual metal filter element, and a string-shaped body capable of contracting the peripheral edge of the filter.