JP4210197B2 - Exhaust port filter device with rectifying plate - Google Patents

Description

  The present invention is easy to attach to an exhaust device (or an exhaust port with a rectifying plate) having a structure in which a rectifying plate (or a shielding plate) is disposed at the front portion of the ventilating port. It is related with the filter apparatus useful for covering the annular exhaust port between these, and preventing discharge | emission of dust, oily smoke, etc., and its attachment method.

  In order to capture and discharge dust, oil and smoke components, etc. present in a space such as a room, a filter is usually attached to an exhaust unit having an exhaust port. As a filter for mounting on the exhaust unit, Japanese Patent Laid-Open No. 11-300130 (Patent Document 1) discloses a metal filter that is detachably disposed at the exhaust port of a range hood as a filter device for a range hood. A filter device is disclosed that includes a filter that can cover a front surface and a string-like body that is attached to the metal filter by tensioning the filter on the front surface. This document also describes a string that can be contracted as a string. Japanese Laid-Open Patent Publication No. 9-192428 (Patent Document 2) discloses a vent cover having a filter having a band-like portion formed at the peripheral edge and a string-like body capable of contracting the peripheral edge of the filter. Yes. Such a filter or cover can be easily attached to a ventilation opening using a string-like body.

  On the other hand, as an exhaust device, an exhaust device (or an exhaust port with a rectifying plate) having an exhaust unit having an exhaust port and a rectifying plate disposed at a front portion of the exhaust port of the exhaust unit is becoming widespread. This exhaust device is usually attached above an exhaust source such as a kitchen. In the exhaust device, exhaust is performed using an annular exhaust port (for example, a square annular exhaust port) formed between the exhaust port of the exhaust unit and the rectifying plate. Ventilation efficiency (exhaust gas suction speed) can be increased while guiding. Moreover, since the current plate has a planar shape, the aesthetics of the exhaust unit can be enhanced, and the flat part of the current plate can be easily cleaned.

  However, since the exhaust port is annular, the filter and the cover cannot be easily and efficiently attached to the exhaust device with a rectifying plate without impairing the aesthetic appearance. For example, in order to cover the exhaust port with the filter or cover, it is necessary to attach a filter or the like to the outer peripheral portion of the exhaust unit. However, if a filter is attached to the outer periphery of the exhaust unit, the entire front portion of the exhaust unit is covered with the filter, and the filter is likely to hang downward from the exhaust unit, so the design and appearance of the exhaust unit are impaired. . In particular, in order to capture or remove dust and oil smoke components, it is necessary to cover only the entire exhaust unit even though only the annular exhaust port needs to be covered, and the filter cannot be effectively used for the exhaust gas capturing process. .

Furthermore, pollutant components (such as dust and oil smoke components) in the exhaust gas flowing from the annular exhaust port contaminate not only the annular flow path leading to the annular exhaust port but also the inner wall of the exhaust unit including the back surface of the rectifying plate. Therefore, in order to clean the exhaust unit, it is necessary not only to remove the rectifying plate from the exhaust unit and clean the back surface of the rectifying plate, but also because the exhaust unit is located above (or high), the exhaust unit There are difficulties in cleaning the inner wall of the house. This complicates the cleaning operation of the exhaust unit.
JP-A-11-300130 (Claims) JP-A-9-192428 (Claims)

  Accordingly, an object of the present invention is to provide a filter device that can be easily mounted in an exhaust device provided with a baffle plate, and that can be effectively used for exhaust gas capture processing, and an attachment method thereof.

  Another object of the present invention is to provide a filter device capable of efficiently capturing and treating pollutant components such as dust and oil smoke without impairing the design and appearance of the exhaust device provided with the baffle plate, and an attachment method thereof. .

  Still another object of the present invention is to provide a filter device that can reliably cover an exhaust port or a vent (such as an annular vent) and improve the trapping efficiency of contaminant components, and a method for attaching the filter device.

  As a result of intensive studies to achieve the above object, the present inventor has attached a filter to at least the rectifying plate, and an annular vent (or annular exhaust) formed in association with the exhaust vent is formed in an annular region (annular) of the filter. The present invention was completed by finding that the annular vent can be reliably covered without impairing the design and appearance of the ventilation unit, and the trapping efficiency of the pollutant can be improved.

  That is, the filter device of the present invention is used for attaching to an exhaust device (exhaust port with a rectifying plate) including an exhaust unit having an exhaust port and a rectifying plate disposed at a front portion of the exhaust port. This filter device can be temporarily fixed in association with at least the current plate, and can extend or surplus to cover a vent (such as an annular or U-shaped vent) between the exhaust port and the current plate. It is comprised with the filter main body which has an area | region (an annular area or an annular belt). In such a filter device, the filter main body is temporarily fixed to the current plate, and the pollutant in the exhaust gas is removed by covering the annular vent with the extension of the filter main body or the surplus area (annular area or annular band). Can be captured and removed. In particular, since a portion or region corresponding to a vent (such as an annular vent) in the filter body is formed as a belt-like (annular) extension or surplus portion, the vent can be reliably and easily covered.

  The vent is a vent (for example, an annular, U-shaped, L-shaped vent) formed of at least a linear opening, and the filter body, together with the vent, at least around the current plate. The wall surface may be covered. Further, the filter body may have a three-dimensional shape having a bottom (or a concave portion) corresponding to the current plate as long as it can cover the vent hole, and may be annular (such as a frame-shaped sheet or a cylinder). . In such a filter main body, since the surrounding wall surface of a rectifying plate can also be covered, it is easy to attach and the contamination of the surrounding wall surface of the rectifying plate, which is complicated to clean, can be prevented.

  This type of filter device includes, for example, (A) a filter main body (for example, a cylindrical filter main body), a stretchable string-like body that can temporarily fix the filter main body to the rectifying plate by a contraction force, and the string-like body. A filter device including an extension or an excess portion formed in an outer area of the gas pipe and capable of covering a vent hole (annular, U-shaped, L-shaped vent hole, etc.), and (B) at least a vent hole ( A band-shaped annular filter body (for example, a frame-shaped or cylindrical filter body) having a width capable of covering an annular or U-shaped vent and the vent (such as an annular or U-shaped vent) are covered. In this state, the annular filter main body can be broadly classified into a filter device including at least a temporary fixing means that can be temporarily fixed at the peripheral wall (or outer wall) of the current plate.

  The first filter device (A) provided with a stretchable string-like body has, for example, (a1) a stretchable string-like body attached to the outer side of the periphery of the rectifying plate in the filter body. The string-like body may be capable of being temporarily fixed by contracting at the end of the peripheral wall of the rectifying plate by applying tension to the filter body at least at the outer peripheral wall of the rectifying plate. (A2) A similar filter main body, and a stretchable string-like body that is attached to the outer side of the peripheral portion of the rectifying plate in the filter main body and contracts and temporarily fixes at the end of the peripheral wall of the rectifying plate. Further, an annular or U-shaped extension portion or a surplus portion that is formed in the outer region of the string-like body and can cover the annular or U-shaped vent may be provided. Furthermore, the filter body may be an annular filter body (tubular filter body). The first filter device (A) provided with the stretchable string-like body is, for example, (a3) a belt-like portion (predetermined to cover at least the peripheral wall of the rectifying plate and a vent (such as an annular or U-shaped vent). A filter main body (annular or cylindrical filter main body, etc.) having a width band) and a tension member attached to a portion of the filter member corresponding to both sides of the peripheral wall of the rectifying plate, and tension on the outer peripheral wall of the rectifying plate And two stretchable cord-like bodies that can be temporarily fixed at both sides of the peripheral wall of the current plate.

  In the filter device (A), the filter main body can be attached to the rectifying plate by a simple operation using a stretchable string-like body, and an annular vent is formed at the annular extension portion in the outer region of the string-like body. Coverable.

  The said 2nd filter apparatus (B) should just be able to attach a filter main body with the surrounding wall or outer wall of a baffle plate at least in the state which covered the annular filter main body and the annular vent. For example, (b1) a band-shaped annular filter body (for example, a frame-like sheet or a sheet-like frame body) having a width capable of covering at least an annular or U-shaped vent, and the annular filter body is rectified with the inner wall of the exhaust port Temporary fixing means for temporarily fixing to the peripheral wall (or outer wall) of the plate may be provided.

  In the filter device (B), since the filter body is annular or cylindrical, the annular filter body can easily cover the annular vent, and the annular filter body can be easily secured by the peripheral wall of the rectifying plate.

  Furthermore, in the filter device of the present invention, a temporary fixing means for temporarily fixing the filter main body may be attached to the peripheral portion of the filter main body and / or the inner wall of the exhaust port continuously or at intervals. Such a filter main body can be temporarily fixed at the peripheral portion (or peripheral wall portion) of the current plate, and can also be temporarily fixed at the inner wall of the exhaust port, so that contamination inside the exhaust unit due to contaminating components can be reliably and efficiently prevented. The rectifying plate may be detachable from the exhaust unit, and the front portion of the exhaust port may be opened and closed. Moreover, the peripheral part of the baffle plate may form the surrounding wall bent to the inner side (exhaust port side) of the exhaust port. In the exhaust unit having such a structure, the filter main body can be easily attached, replaced, and cleaned.

  The present invention is a method for attaching a filter device to an exhaust device (or an exhaust port with a rectifying plate) provided with an exhaust unit having an exhaust port and a rectifying plate disposed at a front portion of the exhaust port, At least the filter main body is temporarily fixed by a temporary fixing means in association with the current plate, and a vent (such as an annular, U-shaped or L-shaped vent) between the exhaust port and the current plate is provided on the filter main body. Also included is a method of attaching a filter device that covers an extended or surplus area (such as an annular area or an annular band).

  In the present invention, since the filter body has an extension or a surplus area that can cover the vent, even an exhaust device equipped with a baffle plate can be easily disposed and the exhaust gas capture efficiency can be improved. Can be increased. Further, it is possible to efficiently capture and treat pollutant components such as dust and oily smoke without impairing the design and appearance of the exhaust device provided with the current plate. Further, the exhaust port can be reliably covered by the temporary fixing means, the string-like body, etc., and the trapping efficiency of the contaminating component can be improved.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the following example, in the example using the stretchable string-like body, the filter device in the stretched state is illustrated.

  1 is a schematic sectional view showing an example of the filter device of the present invention, FIG. 2 is a schematic perspective view showing the filter device of FIG. 1, and FIG. 3 is a schematic perspective view showing an exhaust device.

  The exhaust device (exhaust port with rectifying plate) attached to the wall surface includes a hood F having a rectangular exhaust port E, a duct extending from the hood, and an exhaust fan (not shown) arranged in the duct. The exhaust unit 1 is provided, and a metal filter 2 is disposed at the exhaust port 1 of the exhaust unit 1 or the hood F, and the front portion of the exhaust port E is disposed at the hood (front portion of the exhaust port) F. A rectifying plate 3 that can be opened and closed is detachably attached. The rectifying plate 3 has a similar shape (rectangular shape) smaller than the exhaust port E, corresponding to the rectangular exhaust port E. Therefore, a frame shape (square frame shape) or an annular ventilation port (or exhaust port) 4 is formed between the exhaust port E and the rectifying plate 3. Moreover, the peripheral part of the baffle plate 3 has the surrounding wall (or outer peripheral wall) 3a bent in the L shape inside (exhaust port side).

  A filter device 5 shown in FIG. 2 can be attached to such an exhaust device. This filter device is composed of a nonwoven fabric and the like, and has a filter body 6 having a size larger than that of the rectifying plate 3, and a temporary fixing means attached to the outer side of the peripheral portion of the rectifying plate 3 in the filter body. A ring-shaped elastic string 7 is provided. The filter main body 5 is formed with a rectangular recess 6a corresponding to the rectifying plate 3, and the contraction force with respect to the peripheral wall (or outer peripheral wall) 3a of the rectifying plate 3 is formed at the periphery of the recess on the opening side. The stretchable string-like body 7 that can lock the filter main body 6 is attached. Further, in order to cover the annular vent 4, a flange-like annular region (annular extension portion, annular surplus portion or rectangular strip portion) 6 b is provided in the outer region of the stretchable string-like body 7 in the filter body 6. Is formed. The width of the annular region 6b is formed larger than that of the annular vent 4, and the outer peripheral edge of the annular region 6b is formed in the exhaust hood (by the magnetic attractive force of the magnet and the mechanical engagement force of the surface fastener). The inner wall (F) of the exhaust port can be temporarily fixed. In this example, a temporary fixing means (surface fastener) 8 for temporarily fixing the outer peripheral edge of the annular region 6b continuously or at a predetermined interval to the exhaust hood (inner wall of the exhaust port) F. Is attached.

  In such a filter device, when the filter main body 6 is attached to the rectifying plate 3 and the elastic string 7 is locked to the peripheral wall (outer wall) 3a of the rectifying plate 3, the elastic string 7 is rectified. The filter body 6 can be attached to the exhaust unit by the contraction force. In addition, since the contraction force of the stretchable cord-like body 7 acts on the entire circumference of the filter body 6, a tension force is applied to the filter body 6 at least by the outer peripheral wall 3 a of the rectifying plate 3, and the filter body 6 is removed from the exhaust port. Therefore, it is possible to prevent a gap from being generated between the current plate 3 and the filter body 6. In particular, since an annular region 6b that can be temporarily fixed to the exhaust hood (inner wall of the exhaust port) F extends outward from the elastic string 7 in the filter body 6, in this annular region, An annular vent (exhaust port narrowed by the rectifying plate) 4 can be covered, and contamination components can be prevented from flowing from the annular vent 4 to the exhaust port.

  In order to prevent contamination of a portion of the current plate that is difficult to clean, the filter body often covers at least the peripheral wall surface of the current plate together with the annular vent. 4 is a schematic sectional view showing another example of the filter device of the present invention, and FIG. 5 is a schematic perspective view showing the filter device of FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the member or element which is the same as that of the filter apparatus shown in the said FIG.

  In this example, as shown in FIG. 5, the filter device 15 has a structure in which there is no bottom wall of the recess in the filter body 6 shown in FIG. 2. More specifically, the filter main body 16 includes a rectangular frame-shaped or belt-shaped annular (or cylindrical) filter portion (or strip-shaped portion) 16a having a width capable of covering the peripheral wall 3a of the rectifying plate 3, and the annular filter portion ( Or an annular region (or annular extension or surplus part) 16b that extends from the edge of the belt-like part in a flange-like form and can cover the annular vent 4, and the circumferential direction of the annular filter part 16a The two stretchable string-like bodies 17a and 17b are attached to correspond to the height of the peripheral wall 3a of the current plate 3 (that is, both side portions of the peripheral wall 3a). That is, the opening edge portion of the annular filter portion 16a and the predetermined circumferential direction of the annular filter portion 16a corresponding to the height of the peripheral wall 3a of the rectifying plate 3 and separated from the opening edge portion are 2 Two elastic string-like bodies 17a and 17b are attached.

  In such a filter device, as shown in FIG. 4, the two stretchable string-like bodies 17 a and 17 b are stretched to cover the outer peripheral wall 3 a of the rectifying plate 3 with the annular filter portion 16 a of the filter body 16, and stretchable. By releasing the extension of the string-like bodies 17a and 17b and applying a contracting force to the annular filter portion 16a, the elastic string-like bodies 17a and 17b are inwardly connected to the filter body 16 at least by the outer peripheral wall 3a of the rectifying plate 3. It can be temporarily fixed by contracting on both sides of the peripheral wall 3a of the current plate 3 by applying a tension force. That is, the peripheral wall 3a of the rectifying plate 3 can be tightly covered with the filter body 16, and the peripheral wall 3a of the rectifying plate 3 can be easily operated by using the contraction force of the two stretchable string-like bodies 17a and 17b. The filter body 16 can be securely and firmly attached. In the same manner as described above, the outer extension of the filter body 16 is temporarily fixed to the exhaust hood (inner wall of the exhaust port) F by using a magnet or a hook-and-loop fastener 8, that is, an annular region (or an annular extension). The annular vent 4 can be covered with the outlet 16b, and contamination components can be prevented from flowing from the annular vent 4 to the exhaust port.

  In addition, the attachment site | part of the two elastic cord-like bodies with respect to a filter main body will not be restrict | limited especially if the surrounding wall of a baffle plate can be covered, For example, one elastic cord-like body is not an opening edge part but cyclic | annular form. You may attach to the inner side (inner region rather than an opening edge part) of a filter part.

  In the above example, the annular region (or the annular extension portion or the annular surplus portion) extending in a flange shape in the filter main body does not need to be flexible, as long as it can be attached while covering the annular vent. It may have rigidity or shape retention by resin impregnation or the like within a range not impairing the above. Moreover, in the said filter main body, the cyclic | annular area (or cyclic | annular extension part) extended in a flange shape is not necessarily required, and the whole shape may be a cylindrical or strip-shaped cyclic filter main body. FIG. 6 is a schematic perspective view showing still another example of the filter device of the present invention, and FIG. 7 is a schematic perspective view showing another example of the filter device of the present invention.

  The filter devices 25 and 35 shown in FIGS. 6 and 7 include annular (tubular) filter bodies 26 and 36 each having a band-shaped portion having a width capable of covering the peripheral wall 3a and the annular vent 4 of the rectifying plate 3, and the annular filter bodies 25 and 35. The filter body includes two stretchable string-like bodies 27a, 27b, 37a, and 37b attached in the circumferential direction at portions corresponding to both ends (or both side portions) of the peripheral wall 3a of the rectifying plate 3. Of these stretchable cord-like bodies, an outer area (or inner area) from the inner cord-like bodies 27a and 37a is provided with an annular area (annular zone, annular extension portion) to cover the annular vent 4. 26b and 36b are formed. In the example shown in FIG. 6, the two stretchable string-like bodies 27a and 27b are attached to the inside of the annular filter body 26 at a predetermined interval. In the example shown in FIG. Of the bodies 37a and 37b, one string-like body 37b is attached to the opening edge or end.

  In such filter devices 25 and 35 as well as the filter device shown in FIGS. 4 and 5, the outer peripheral wall of the rectifying plate 3 is obtained by the extension and release of the two stretchable string-like bodies 27a, 27b, 37a and 37b. 3a can apply tension to the filter bodies 26 and 36, and the elastic cord-like bodies 27a, 27b, 37a, and 37b can be contracted and temporarily fixed at the ends (both sides) of the peripheral wall 3a of the rectifying plate 3. The outer peripheral wall 3a of the rectifying plate 3 can be tightly covered with the filter main bodies 26 and 36, and the filter main bodies 26 and 36 can be securely and firmly attached to the peripheral wall 3a of the rectifying plate 3. Further, in the same manner as described above, the annular vent 4 can be covered with the annular regions (or annular belt portions) 26b and 36b using a temporary fixing means such as a magnet or a hook-and-loop fastener 8.

  Further, the filter device is not limited to the above, and filter devices having various structures can be employed. FIG. 8 is a schematic view showing still another filter device of the present invention.

  The filter device 45 includes an annular filter body 46 formed of a belt-like body, and two stretchable string-like bodies 47a and 47b attached in the circumferential direction at a predetermined interval in the width direction of the annular filter body. I have. In this example, annular regions (or annular extending portions and annular surplus portions) 46b and 46c are formed in regions in the outward direction (internal and external directions) from the two stretchable string-like bodies 47a and 47b, respectively. In addition, the area | region between the two elastic cord-like bodies 47a and 47b among the filter main bodies 46 can cover the outer peripheral surface of the surrounding wall of a baffle plate. In this example, the width of the annular region (or annular extension portion, annular surplus portion) 46b for covering the vent hole is the same as that of the stretchable string 47b located on the front side of the rectifying plate in the attached state. It is formed narrower than the annular region (or annular extending portion, annular surplus portion) 46c. In addition, the width of the annular region (or annular extension portion, annular surplus portion) 46b for covering the vent hole is equal to the annular region (or annular extension portion, annular surplus portion) of the outer region of the elastic string 47b. ) It may be formed larger than 46c.

  In addition, the annular region (or the annular extension portion or the annular surplus portion) extending in the flange shape in the filter main body does not need to be flexible, and may have rigidity or shape retention by resin impregnation or the like. The rectifying plate is usually detachable from the exhaust unit, or the front portion of the exhaust port can be opened and closed using a hinge or the like. Therefore, the annular filter main body can be attached to the exhaust unit after the annular filter body is attached to an appropriate position (such as the inside) of the peripheral wall or side wall of the rectifying plate in a state where the rectifying plate is separated or removed from the exhaust unit. 9 is a schematic sectional view showing another example of the filter device of the present invention, and FIG. 10 is a schematic perspective view showing the filter device of FIG.

  In this example, the filter device 55 is configured by a belt-like annular filter body (square frame filter body) 56 having a width that can cover at least the annular vent 4 (or a width that is slightly larger than the annular vent). The annular filter body is formed in an annular shape (square frame shape) similar to the rectifying plate 3. The annular filter body 56 has a relatively large rigidity (or self-retaining property) by reinforcing the nonwoven fabric constituting the filter with reinforcing means (resin impregnation, blended reinforcing fibers, etc.). The annular filter main body 56 is attached to the inner surface of the peripheral wall 3a of the current plate 3 and can be attached via a temporary fixing means or attachment means (surface fastener, adhesive, adhesive, etc.) 57 on the inner surface of the peripheral wall 3a. The annular vent 4 can be covered in the mounted state. That is, the rigidity of the annular filter body 56 is utilized by attaching the outer peripheral end portion (in the illustrated example, the outer peripheral lower end portion) of the annular filter body 56 to the inner surface of the peripheral wall 3a of the rectifying plate 3 by the temporary fixing or attaching means 57. Thus, the annular vent 4 can be covered or closed in the standing state.

  In such a filter device 55, since the annular filter body 56 has a shape retaining property, the end of the annular filter body 56 can be temporarily and efficiently temporarily fixed to the inner wall of the peripheral wall 3a of the rectifying plate 3, and the annular ventilation body The outlet 4 can be attached to the exhaust unit 1 by shielding or covering the opening 4 with the annular filter body 56. Therefore, the annular vent 4 can be easily and efficiently sealed or covered while the filter device 55 has a simple structure.

  FIG. 11 is a schematic cross-sectional view showing a modified example of the filter device shown in FIGS.

  In this example, the filter device includes an annular filter body (rectangular frame-shaped annular filter body) 66 that is wider and more flexible than the filter device (or the annular vent 4) shown in FIGS. Therefore, one end of the annular filter body 66 is temporarily fixed to the inner wall of the peripheral wall 3a of the rectifying plate 3 by temporarily fixing or attaching means (surface fastener, magnet, adhesive, adhesive, etc.) 57, and the rectifying plate 3 is exhausted. By attaching to the unit 1, the other end of the annular filter body 66 can be brought into contact with the hood (inner wall of the exhaust port) F (or follow the hood surface) to cover the annular vent 4. In particular, the annular filter main body 66 can be mounted in a state where the other end (the hood side end) of the annular filter main body 66 is curved in an arch shape in the opposite direction (outward direction) to the air flow inflow direction. Therefore, even if the gas containing a contaminating component is exhausted from the annular vent 4, the contaminating component can be collected while the shape is reliably maintained. Further, a temporary fixing means for temporarily fixing the other end of the annular filter body 66 to the hood (inner wall of the exhaust port) F is not always necessary.

  The flexibility and rigidity of the annular filter body can be adjusted by the resin impregnation amount with respect to the nonwoven fabric, and the resin impregnation amount is, for example, 1 to 50 parts by weight, preferably 3 to 100 parts by weight of the nonwoven fabric of the annular filter body. It may be about -30 parts by weight, more preferably about 5-20 parts by weight.

  Further, in order to securely seal the annular vent, the other end (the other end of the outer circumference or the inner circumference) of the hollow annular filter main body (for example, the annular filter main bodies 56 and 66) disposed or mounted in the annular vent. The upper part in the illustrated example uses a temporary fixing or attachment means (magnetic attractive force such as a magnet, mechanical engagement force such as a hook-and-loop fastener, adhesive force such as an adhesive) in the same manner as described above. In addition, the exhaust hood (inner wall) F may be temporarily fixed or attached.

  Furthermore, in order to improve the attachment property to the current plate, the rigidity of one end side of the annular filter body is increased by impregnation of resin (for example, impregnation of about 10 to 30 parts by weight with respect to 100 parts by weight of the annular filter body). If necessary, the other side contacting the exhaust hood (inner wall of the exhaust port) by impregnation with a small amount of resin (for example, impregnation of about 0 to 5 parts by weight with respect to 100 parts by weight of the annular filter body). The end side (contact portion) may be formed flexibly. Moreover, the width | variety of the area | region which has a softness | flexibility may be about 2 to 60% (preferably 5 to 50%. More preferably, it is 10 to 30%) with respect to the width | variety of the whole annular filter main body.

  Moreover, the temporarily fixed location of the annular filter body with respect to the rectifying plate is not limited to the inner surface of the peripheral wall of the rectifying plate but may be the outer surface (or outer wall).

  In the above example, the filter body has at least a cylindrical portion, and this cylindrical portion may be a bottomed cylindrical shape as shown in FIGS. As shown in FIG. 11, it may be a cylindrical portion having both ends opened.

  12 is a schematic sectional view showing still another example of the filter device of the present invention, and FIG. 13 is a schematic perspective view showing the filter device of FIG.

  In this example, the filter device 75 includes an annular filter body 76 formed of a planar annular (or frame-like) sheet (or a sheet-like frame body) corresponding to a rectangular current plate, and this annular filter body. Can be bent or bent in the form of a curved cross section (U shape, V shape, etc.) over the entire circumference. Since the filter device 75 temporarily fixes the filter body 76 to the annular vent 4 in a U-shaped cross section, the outer peripheral ends of the filter body 76 are connected to the inner wall of the hood (exhaust port) F and the peripheral wall 3a of the rectifying plate 3. Temporary fixing means (surface fastener, adhesive, etc.) 77 for temporarily fixing to the outer wall is also provided. In the illustrated example, the annular (or frame-shaped) filter main body 76 has an inverted U shape or an inverted V shape with respect to the hood (inner wall of the exhaust port) F that forms the annular vent 4 and the peripheral wall 3 a of the rectifying plate 3. (Ie, a form bulged in the inflow direction of the gas containing the contaminating component) is attached in a curved manner.

  When the sheet-like filter is curved over the entire surface, wrinkles are generated at the corners, and the annular vent may not be tightly sealed. In such a case, a cut or fold line extending in the radial direction may be formed in the corner portion of the sheet-like filter so that adjacent portions can be overlapped.

  FIG. 14 is a schematic perspective view showing a modification of the filter device of FIGS. 12 and 13. In this example, the filter main body 86 of the filter device 85 has an annular filter portion or an annular region (or an annular extension portion, an annular shape) constituted by an annular (or square frame shape) sheet having an inner diameter corresponding to the shape of the rectifying plate 3. Band) 86a, and annular extending portions 86b and 86c having a predetermined width respectively hanging or standing from the inner edge and the outer edge of the annular area. That is, the filter device 85 is configured by a filter body (or filter frame body) 86 having a U-shaped or U-shaped cross section. Such a filter body 86 has an inverted U-shaped cross section, and has an outer annular extending portion with respect to the hood (inner wall of the exhaust port) F forming the annular vent 4 and the peripheral wall 3a of the rectifying plate 3. The annular vent 4 can be covered by temporarily fixing 86b and the inner annular extending portion 86c by temporary fixing or attaching means similar to those described above. In addition, this filter main body may have rigidity or shape retainability.

  In addition, the filter main body comprised with the cyclic | annular or frame-shaped sheet | seat (or sheet-shaped frame) is U-shaped in cross section or V-shaped with respect to the hood (inner wall of an exhaust port) which forms an annular vent, and the surrounding wall of a baffle plate. You may make it curve or bend | curve in the shape (The form swelled in the reverse direction with respect to the inflow direction of the gas containing a contamination component, ie, the opening direction of an annular vent). The filter main body may be attached at an appropriate position of the annular vent, for example, at a deep portion of the annular vent. Usually, in order to suppress contamination of the annular vent, the inflow side (or inflow end portion) of the annular vent is provided. ) Is often attached.

  In the above example, the exhaust device (exhaust port with rectifying plate) or the exhaust unit in which the annular vent is formed by the hood (inner wall of the exhaust port) and the rectifying plate has been described, but the vent port is rectified with the exhaust port. It does not need to be an annular vent between the plates, and various forms of vents may be used according to the shape of the exhaust port of the hood and the shape of the current plate. That is, the shape of the current plate is not limited to a rectangular shape, and various shapes (circular shape, elliptical shape, polygonal shape, etc.) can be adopted. The vent formed between the hood and the rectifying plate is usually composed of at least a linear opening, for example, a straight vent, an L-shaped vent, a U-shaped vent, or a U-shaped vent. It may be a mouth, a ring-shaped or frame-shaped vent. Therefore, in this invention, the filter main body should just have the extension or surplus area | region which can cover or seal a vent hole according to the form of the said vent hole.

  15 is a schematic perspective view showing still another example of the filter device of the present invention, and FIG. 16 is a schematic perspective view showing an exhaust device to which the filter device of FIG. 15 can be attached.

  In this example, the exhaust device (exhaust port with rectifying plate) is detachably attached to a hood F having a rectangular exhaust port E and a hood (front portion of the exhaust port) F, and the front portion of the exhaust port E is connected to the hood F. The rectifying plate 13 is openable and closable. The rectifying plate 13 is formed in a similar shape (rectangular shape) smaller than the exhaust port E corresponding to the rectangular exhaust port E. It is shifted and attached to one side (in this example, the back direction) of E, and the inflow of gas is regulated on the shift side (eg, the back side). Therefore, a U-shaped vent (or exhaust port) 14 through which airflow can flow from three directions is formed between the exhaust port E and the rectifying plate 13. In the same manner as described above, the peripheral portion of the rectifying plate 13 has a peripheral wall (or outer peripheral wall) 13a bent in an L shape inward (exhaust port side).

  On the other hand, the filter device 95 includes a belt-like filter body 96 having a predetermined width and length capable of covering the peripheral wall 13a of the rectifying plate 13 and the vent hole 14, and both ends (or the ends of the peripheral wall 13a of the rectifying plate 13 of the filter body). Two stretchable string-like bodies 97a and 97b attached in a circumferential direction at a predetermined interval to a portion corresponding to both side portions), and out of the stretchable string-like bodies out of the inner string-like body 97a. In the direction area (or inward area), a band-like extension part or surplus part 96b is formed to cover the U-shaped vent hole 14. Further, both end portions of the band-shaped filter body 96 are connected by a non-stretchable or stretchable string-like body 97c. Both end portions of the band-shaped filter body 96 are converged and integrated with the string-like body 97c.

  In such a filter device 95, the string-like body 97c that connects both ends of the band-shaped filter body 96 is connected to the shift side of the rectifying plate 13 (in this example, the back part on the side where the inflow of gas is restricted). As in the filter device shown in FIGS. 4 and 5, the outer peripheral wall 13a of the rectifying plate 13 is stretched and released by the extension and release of the two elastic cord-like bodies 97a and 97b. The tension is applied to the filter main body 96 while covering with the filter portion 96a between the strips 97a and 97b, and the elastic string members 97a and 97b are contracted at the ends (both sides) of the peripheral wall 13a of the rectifying plate 13. And can be temporarily fixed. Therefore, the outer peripheral wall 13a of the rectifying plate 13 can be tightly covered with the filter main body 96, and the filter main body 96 can be securely and firmly attached to the peripheral wall 13a of the rectifying plate 13. In the same manner as described above, the annular vent 14 can be covered with the extended portion or the surplus portion 96b by using a temporary fixing means such as a magnet or a hook-and-loop fastener 8.

  In addition, in order to tightly adhere the string-like body to the peripheral wall 13a on the side of the rectifying plate 13 where the inflow of gas is restricted, the string-like body 97c that connects the both ends of the stretchable string-like body 97a and the band-like filter body 96. May be integrated with each other, or may be formed of the same elastic string. Further, the two stretchable string-like bodies 97a and 97b may be integrated while being merged or converged with the string-like body 97c at both ends of the belt-like filter body 96. That is, as shown in the drawing, both end portions of the band-shaped filter body 96 may be folded in a triangular shape, and the folded portion and the string-like body 97c may be integrated. Moreover, the both ends of the strip | belt-shaped filter main body 96 may be turned up, and this turned up part and the string-like body 97c may be integrated. Further, one of the two stretchable strings 97a and 97b and the string 97c may be formed of a stretchable string, and the two strings 97a and 97b are made non-stretchable. The string-like body 97c may be stretchable, the two string-like bodies 97a and 97b may be stretchable, and the string-like body 97c may be non-stretchable. Further, the expansion / contraction strength or contraction force of the string-like body 97c may be larger than the two string-like bodies 97a, 97b.

  In the example shown in the figure, the extension part or surplus part 96c is also formed in the outward region (or outer region) from the other stretchable string-like body 97b, but this extension part or surplus part. 96c is not necessarily required. That is, one of the two elastic string-like bodies 97 b may be attached to the side edge of the band-shaped filter body 96. Moreover, the width | variety of the extension part or the surplus parts 96b and 96c should just be able to cover a vent hole at least one extension part or a surplus part, and both widths may be the same and may differ. Good.

  Furthermore, in the exhaust device (exhaust port with a rectifying plate) for sucking and venting gas, the rectifying plate is not limited to a flat plate shape and may be curved. FIG. 17 is a schematic view showing another example of a ventilation apparatus to which the present invention can be applied. In this example, a hood F having a rectangular exhaust port and a rectifying plate 23 detachably attached to the hood F are shown. I have. The rectifying plate is curved from the front part toward the back part, and is attached while being shifted to one side of the exhaust port (in this example, the back direction). On the shift side (eg, the back part) Gas inflow is regulated. That is, gas can flow in from the front vent and the vents 24 on both sides of the current plate 23.

  In such a ventilator, when the filter device is attached using the contraction force of the stretchable string-like body, the filter body may be separated from the rectifying plate 23 in the curved portion of the rectifying plate 23. In such a ventilation device or ventilation unit, it is advantageous to use the temporary fixing or attachment means on the peripheral wall of the bending portion to restrict the filter body from being released at the bending portion. Moreover, if necessary, the temporary fixing or attaching means may be attached to the front surface of the rectifying plate 23 to prevent the filter body from being detached from the front surface of the rectifying plate 23.

  In the filter device of the present invention, as long as the filter main body can be attached, the peripheral wall or side wall of the rectifying plate is not necessarily required, but the rectifying plate often has the peripheral wall or side wall. The peripheral part of the current plate may form a peripheral wall bent toward the inner side (exhaust port side) of the exhaust port. The peripheral wall or side wall of the current plate need not be continuous, and the side wall may be formed regularly or irregularly spaced.

  The filter body only needs to have a size that at least covers or shields the vent. The filter body that covers the front surface of the current plate is usually larger in size than the current plate and is similar to the current plate. Is often formed. Therefore, the filter main body can also be formed according to the shape of the current plate. A filter body (tubular filter body) equipped with a cylindrical filter (cylindrical part) usually rectifies together with the vents to prevent contamination (such as the attachment of oily smoke components) on the edges and peripheral walls of the rectifying plate. It is preferable that at least the peripheral wall surface of the plate can be covered.

  An extension or surplus portion (annular region, annular band, etc.) formed in the outer region of the string-like body of the filter body covers a vent (such as an annular vent) between the exhaust port and the rectifying plate. Or what is necessary is just to be able to shield, and in order to seal a vent hole reliably, as mentioned above, it may be wider than a vent hole.

  The extension or surplus part is in the form of an inverted U-shaped cross section or the like, and is inclined or curved toward the opening part of the vent hole from the current plate toward the hood (inner wall of the exhaust port) to cover the vent hole. Is preferred. If the vent hole is covered in such a form, the extension or the surplus part can be inclined from the inside to the outside and curved in an arch shape in the direction in which the air flow enters the vent hole. Even if force is applied, it is possible to capture the contaminated component reliably and smoothly while maintaining the shape of the extension or surplus portion.

  The filter main body does not need to include the tubular portion, and may be configured by a frame-shaped or ring-shaped sheet, or may be an annular filter main body configured by a strip-shaped body. Such a filter main body also has a width capable of covering at least a vent hole (such as an annular vent hole). The width of the frame-shaped or ring-shaped filter body is larger than the vents (annular vents, etc.) with a margin for the temporary tacks to temporarily fix both ends to the current plate and the hood (inner wall of the exhaust port) Has been. That is, it has a width that can cover at least the vent hole and the peripheral wall of the current plate.

  Moreover, the filter main body should just be temporarily fixable in connection with the said baffle plate. Temporary fixing means for temporarily fixing the filter main body and the current plate, extending the filter main body, or temporarily attaching the surplus portion and the hood of the vent hole (inner wall of the exhaust port) are, for example, magnetic means using a magnet, rubber Elastic contraction means by string (stretchable string), hook or hook fasteners, rake-like locking members, locking or engaging means such as fasteners, adhesives or adhesives (including double-sided adhesive or double-sided adhesive tape), etc. It may be a sticking means. Further, as the fitting means or the attaching means, a slit that can be attached to the end of the filter body in association with the current plate or its peripheral wall or side wall, a fitting part such as a dot button or a snap button, or an attaching part may be formed. Good. These temporary fixing means may be combined. For example, the filter main body may be temporarily fixed to the current plate by combining the adhering means with the magnetic means or the locking means.

  As long as the filter body can be attached to the current plate, the temporary fixing means may be attached to the current plate (or inner wall of the hood that forms the vent) or the filter body, and the current plate (or inner wall of the hood) and the filter body. You may attach to both. For example, an engaging means such as a hook-and-loop fastener may be attached to the current plate, and the loop member constituting the surface fastener (or one of the belt-like members constituting the rake-like cross band) is connected to the current plate and the filter main body (or the hood inner wall). ) May be attached to one member, and the collar member (or the other belt-like body) may be attached to the other member. Magnetic temporary fixing means such as a magnet may be attached to both the current plate (or inner wall of the hood) and the filter body, and the magnet is attached to one member of the current plate (or inner wall of the hood) and the filter body, iron or the like The magnetic body may be attached to the other member as an adsorbed body. Furthermore, a filter main body may be interposed between the magnet and the inner wall of the hood, and the filter may be sandwiched using the magnetic attraction force between the magnet and the hood.

  When the filter main body is temporarily fixed to the current plate, normally, the temporary fixing means can temporarily fix the filter main body with at least the current plate (including its peripheral wall or side wall), and the vent hood (exhaust port inner wall) side Then, it is not necessary to temporarily fix the filter body. For example, as shown in FIG. 1 to FIG. 8 and the like, temporarily fix one end of the filter body to the baffle plate and temporarily fix the other end to the annular vent hood (inner wall of the exhaust port). As shown in FIGS. 9 to 11, in the tubular filter body, one end of the filter body is temporarily fixed to the current plate in a state of covering the annular ventilation hole, and the other The end may be a free end.

  The stretchable string does not need to be ring-shaped, and may be composed of a plurality of stretchable strings attached at predetermined intervals in the circumferential direction of the filter body. May be formed of an elastic string. When an elastic string-like body is used, the filter main body (such as a cylindrical portion) can be securely and easily temporarily fixed to the rectifying plate by the contraction force.

  Although the attachment site | part in particular of an elastic | stretch string-like body is not restrict | limited, In order to temporarily fix | relate in relation to a baffle plate, it is often an outer region rather than a baffle plate among filter bodies. When such a stretchable string-like body is used, the end of the rectifying plate (including the peripheral wall or side wall) is contracted, and at least the end of the rectifying plate (including the outer peripheral wall) exerts tension on the filter body. Temporary fixing is possible. In particular, when two stretchable string-like bodies are attached to portions corresponding to both sides of the end portion (including the peripheral wall or side wall) of the current plate in the annular filter member, the end portion (including the peripheral wall or side wall) of the current plate is included. ), A tension force is applied to the filter body, and the filter body can be securely and firmly temporarily fixed on both sides of the peripheral wall of the current plate.

  Further, the temporary fixing means may temporarily fix the filter main body continuously in the circumferential direction with respect to the peripheral edge of the filter main body and / or the inner wall of the exhaust port. The main body may be temporarily fixed.

  When the filter device of the present invention is used, the filter main body is temporarily fixed by temporary fixing means in association with at least the rectifying plate, and a vent (such as an annular vent) between the exhaust port and the rectifying plate is provided in the filter main body. The filter device can be smoothly attached by covering with an extension or surplus area (annular area, annular band, etc.). Therefore, the present invention can be applied to various exhaust units having a current plate, for example, exhaust units such as kitchens and kitchens, and is effective in capturing pollutants such as oily smoke generated.

FIG. 1 is a schematic sectional view showing an example of the filter device of the present invention. FIG. 2 is a schematic perspective view showing the filter device of FIG. FIG. 3 is a schematic perspective view showing the exhaust device. FIG. 4 is a schematic sectional view showing another example of the filter device of the present invention. FIG. 5 is a schematic perspective view showing the filter device of FIG. FIG. 6 is a schematic perspective view showing still another example of the filter device of the present invention. FIG. 7 is a schematic perspective view showing another example of the filter device of the present invention. FIG. 8 is a schematic perspective view showing still another filter device of the present invention. FIG. 9 is a schematic sectional view showing another example of the filter device of the present invention. FIG. 10 is a schematic perspective view showing the filter device of FIG. FIG. 11 is a schematic cross-sectional view showing a modified example of the filter device shown in FIGS. FIG. 12 is a schematic sectional view showing still another example of the filter device of the present invention. FIG. 13 is a schematic perspective view showing the filter device of FIG. FIG. 14 is a schematic perspective view showing a modification of the filter device of FIGS. 12 and 13. FIG. 15 is a schematic perspective view showing still another example of the filter device of the present invention. 16 is a schematic perspective view showing an exhaust device to which the filter device of FIG. 15 can be attached. FIG. 17 is a schematic view showing another example of a ventilation device to which the present invention can be applied.

Explanation of symbols

E ... Exhaust port F ... Hood 1 ... Exhaust unit 2 ... Metal filter 3, 13, 23 ... Rectifying plate 3a, 13a ... Peripheral wall (outer peripheral wall)
4, 14, 24 ... vents 5, 15, 25, 35, 45, 55, 75, 85, 95 ... filter devices 6, 16, 26, 36, 46, 56, 66, 76, 86, 96 ... filter bodies 6b, 16b, 26b, 36b, 46b, 86b, 86c, 96b ... Extension or surplus part 16a, 86a ... Annular filter part 7, 17a, 17b, 27a, 27b, 37a, 37b, 47a, 47b, 97a, 97b ... Stretchable string 8 ... Temporary fixing means (surface fastener)
57, 77 ... Temporary fixing means 97c ... String-like body

Claims (13)

  A filter device for mounting on an exhaust device having an exhaust unit having an exhaust port and a rectifying plate disposed at a front portion of the exhaust port, and can be temporarily fixed in association with at least the rectifying plate. And the filter apparatus comprised by the filter main body which has the extension or surplus area which can cover the ventilation hole between the said exhaust port and a baffle plate.   2. The filter device according to claim 1, wherein the vent is a vent configured by at least a linear opening, and the filter main body can cover at least a peripheral wall surface of the current plate together with the vent.   The filter device according to claim 1 or 2, wherein the vent is an annular or U-shaped vent.   A stretchable string-like body that can temporarily fix the filter body to the rectifying plate by a contracting force, and an extension or surplus that is formed in the outer region of the string-like body and can cover the vent hole The filter apparatus of Claim 2 provided with the part.   A stretchable string-like body is attached to the outer side of the periphery of the rectifying plate of the filter body, and this stretchable string-like body exerts tension on the filter body at least on the outer peripheral wall of the rectifying plate to rectify The filter device according to claim 2, wherein the filter device can be temporarily fixed by contracting at an end portion of the peripheral wall of the plate.   A similar filter body that is larger in size than the current plate, and an expansion / contraction that is attached to the outer side of the periphery of the current plate of the filter body and contracts temporarily at the end of the peripheral wall of the current plate 2. An elastic string-like body, and an annular or U-shaped extension part or surplus part that is formed in an outer region of the string-like body and can cover an annular or U-shaped vent. Filter device.   A filter main body having a band-shaped portion capable of covering the peripheral wall and the vent of the rectifying plate, and attached to portions corresponding to both sides of the peripheral wall of the rectifying plate in the filter main body, and inward in the outer peripheral wall of the rectifying plate 2. The filter device according to claim 1, further comprising two annular stretchable string-like bodies that can be temporarily fixed on both side portions of the peripheral wall of the current plate by applying the tension force.   An annular filter body having a band-shaped portion having a width capable of covering at least the peripheral wall of the current plate and the annular or U-shaped vent, and attached to portions of the annular filter member corresponding to both sides of the peripheral wall of the current plate. 2. A filter device according to claim 1, further comprising two stretchable string-like bodies that can be temporarily fixed at both side portions of the peripheral wall of the current plate by applying a tension force on the outer peripheral wall of the current plate.   A belt-shaped annular filter body having a width capable of covering at least the vent hole, and a temporary fixing means capable of temporarily fixing the annular filter body at least with the peripheral wall of the rectifying plate in a state of covering the vent hole. Item 2. The filter device according to Item 1.   A band-shaped annular filter body having a width capable of covering at least an annular or U-shaped vent, and a temporary fixing means for temporarily fixing the annular filter body to the inner wall of the exhaust port and the peripheral wall or outer wall of the rectifying plate The filter device according to claim 9.   The filter device according to claim 1, wherein the rectifying plate can be attached to and detached from the exhaust unit or the front portion of the exhaust port can be opened and closed, and a peripheral wall of the rectifying plate is bent toward the exhaust port side.   The filter device according to claim 1, wherein temporary fixing means for temporarily fixing the filter main body is attached to the peripheral portion of the filter main body and / or the inner wall of the exhaust port continuously or at intervals.   A method for attaching a filter device to an exhaust device comprising an exhaust unit having an exhaust port and a rectifying plate disposed at a front portion of the exhaust port, wherein at least the filter body is associated with the rectifying plate. A method of attaching a filter device, wherein the filter device is temporarily fixed by a temporary fixing means, and covers a vent hole between the exhaust port and the rectifying plate with an extension or a surplus area of the filter body.

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