JP6486633B2 - Exhaust hood - Google Patents

Description

  The present invention relates to an exhaust hood disposed above a cooking range in order to discharge smoke, gas, and the like generated during cooking by the cooking range to the outside of the room.

  Conventionally, a range hood 500 as shown in FIG. 23 is used as an exhaust facility for discharging smoke, gas, and the like generated when cooking is performed in a cooking range to the outside of the room. In the range hood 500, a box-shaped hood member 502 having an opening 501 on the lower surface side is disposed above the cooking range R with the opening 501 facing the cooking range R. An exhaust duct 503 is connected to the upper surface portion 502a, and exhaust means such as an exhaust fan (not shown) is provided on the upstream side of the exhaust duct 503.

  Smoke, gas, etc. (hereinafter abbreviated as “smoke S”) generated when cooking using the cooking range R rises toward the hood member 502, and the inside of the hood member 502 is from the opening 501. To the outside through the exhaust duct 503.

  In the range hood 500, the exhaust air volume is generally set so that the surface wind speed of the opening 501 of the hood member 502 is about 0.15 m / sec, but the cooking range depends on the type of dish being cooked. When a large amount of smoke S is generated from R, since the exhaust surface wind speed is slow, it cannot be handled by the induced wind speed near the opening 501, and a part of the smoke S that cannot be attracted into the hood member 502 is partly opened. May overflow from the peripheral edge 502b and diffuse into the room.

  In order to solve such a problem, for example, a “range hood having a cooking exhaust gas rectifying plate” (see Patent Document 1) has been proposed, but a countermeasure when a large amount of smoke S is generated from the cooking range R is proposed. The reality is that the ability is insufficient. Therefore, the applicant made a prototype of an exhaust hood 600 as shown in FIGS. 24 and 25 and conducted an experiment on the exhaust capacity and the like under a confidential condition in the company.

  As shown in FIGS. 24 and 25, in the exhaust hood 600, a gap G is provided between the opening 601 on the lower surface side of the hood member 602 disposed above the cooking range R and the inner peripheral edge 604 thereof. In such a state, the rectifying plate 605 is disposed so as to close the opening 601. The rectifying plate 605 is disposed so as to be located above the opening end surface of the opening 601.

  As shown in FIG. 25 (a), in the exhaust hood 600, by arranging a rectifying plate 605 in the opening 601 of the hood member 602 and securing the wind speed in the gap G to about 2 m / sec, In the state without 605), the air attracting action by the exhaust duct 603 extending over the entire opening 601 can be concentrated in the gap G, so that the smoke S generated from the cooking range R can be quickly generated even if the exhaust air volume is lowered. To the hood member 602.

Utility Model Registration No. 3189435

  As described above, the exhaust hood 600 shown in FIG. 24 has a stronger air attracting action than the conventional range hood 500 shown in FIG. 23 (the induced wind speed in the gap G is larger), so as shown in FIG. There is an advantage that the smoke S generated from the cooking range R can be promptly attracted into the hood member 602.

  However, as shown in FIG. 25 (b), when a large amount of smoke S is locally generated from the cooking range R, a part of the smoke S that could not be attracted by the gap G is the periphery of the hood member 602. The liquid may overflow from the portion 606 and diffuse into the room.

  Then, the subject which this invention tends to solve is providing the exhaust hood which can be efficiently discharged | emitted outside without escaping the smoke and gas which generate | occur | produce during cooking.

The exhaust hood of the present invention is connected to a kitchen exhaust duct and includes a hood member disposed above the cooking range with the opening facing the cooking range, and an inner peripheral edge of the opening of the hood member. And a rectifying member disposed so as to close the opening with a gap therebetween, and at least a part of the rectifying member is provided with a concave portion that is recessed upward. A reservoir, and a smoke collection path for causing the smoke accumulated in the smoke reservoir to flow out into the cavity in the hood member ,
The rectifying member can be taken in and out of the hollow portion from the opening of the hood member, and the lower end of the rectifying member is disposed above the opening end surface of the opening of the hood member,
The smoke accumulation part is formed by forming at least a part of the rectifying member into a shape in which a cylindrical body is separated by a plane parallel to the axial direction . The “upward” means a direction 180 degrees opposite to the direction of gravity (the same applies hereinafter).

  With such a configuration, smoke that has not been directly discharged from the gap between the inner peripheral edge of the opening of the hood member and the outer peripheral edge of the rectifying member is attracted and temporarily accumulated in the smoke reservoir. Then, since it becomes possible to discharge | emit to a cavity part from a smoke collection path | route, it can discharge | emit outside efficiently, without escaping the smoke and gas which generate | occur | produce during cooking.

Here, in the exhaust hood, at least a portion of said rectifying member that has a shape disconnecting the tubular body with its axis parallel to the direction of the plane.

  With such a configuration, since the recessed area can be formed over a relatively wide range of the rectifying member, smoke that has not been directly discharged from the gap does not leak to the outside of the hood member. It can stay in the part and can be smoothly led to the smoke collection path. Therefore, the smoke generated during cooking can be attracted efficiently and can be retained and discharged without leakage.

  Moreover, it is desirable to provide a penetration part in at least one part of the cover body provided in the state which obstruct | occludes the end surface area | region of the said axial center direction of the said baffle member as said smoke collection path | route.

  With such a configuration, the smoke that has been attracted to the smoke accumulation part without being directly discharged from the gap without impairing the appearance and functionality of the rectifying member can be efficiently passed through the penetration part. It can flow into the cavity and be discharged out of the room.

  In this case, the penetration portion can be provided in a region including the top of the end face region of the rectifying member.

  With such a configuration, it is possible to efficiently discharge while preventing leakage of smoke that is attracted to the smoke reservoir and tends to stay in the upper portion.

  On the other hand, a through-hole can be provided in at least a part of the rectifying member as the smoke collection path.

  With such a configuration, the smoke attracted to the smoke reservoir can be quickly discharged via the through hole.

  In this case, the through hole can be provided in a region including the top of the rectifying member.

  With such a configuration, it is possible to efficiently discharge while preventing leakage of smoke that is attracted to the smoke reservoir and tends to stay in the upper portion.

  In addition, a plurality of the rectifying members can be disposed in the opening of the hood member.

  With such a configuration, an excellent smoke discharge function can be obtained even in an exhaust hood provided with a hood member having a wide opening that is installed in a large-scale kitchen facility or the like.

  Further, the rectifying member is connected to the hood member via a locking member interposed between an outer peripheral edge of the rectifying member and an oil recovery groove formed along the inner peripheral edge of the opening of the hood member. It is desirable to be detachable from the opening.

  With such a configuration, the rectifying member can be attached without greatly changing the shape and structure of the hood member, and the detachability of the rectifying member to the hood member is improved, so that the cleaning property and the maintenance property are also improved. . Furthermore, the rectifying member can be attached without modifying the existing hood member.

  Furthermore, a light reflection surface can be provided in at least a part of a region where the smoke accumulation portion of the rectifying member is formed.

  With such a configuration, lighting is provided on the cooking range side, and light is directed toward the rectifying member, so that light reflected from the light reflecting surface illuminates the vicinity of the hand being cooked in the cooking range. be able to. In addition, when the rectifying member is provided in the opening of the hood member, it may be difficult to install the lighting fixture in the hood member. However, the above configuration requires that the lighting fixture be provided in the hood member. The troublesome maintenance such as replacement of light emitting means such as light bulbs and LEDs can be eliminated.

  According to the present invention, it is possible to provide an exhaust hood that can be efficiently discharged outside the room without escaping smoke and gas generated during cooking.

It is a perspective view which shows the exhaust hood which is embodiment of this invention. It is a bottom view of the exhaust hood shown in FIG. It is sectional drawing in the AA in FIG. It is sectional drawing in the BB line in FIG. It is a perspective view which shows the rectifying member which comprises the exhaust hood shown in FIG. It is the figure seen from the arrow C direction in FIG. It is the figure seen from the arrow D direction in FIG. It is the figure seen from the arrow E direction in FIG. FIG. 2 is a partially omitted vertical sectional view showing a usage state of the exhaust hood shown in FIG. 1. It is a perspective view which shows the exhaust hood which is other embodiment. It is a partially-omission perspective view which shows other embodiment regarding a baffle member. It is a partially-omission perspective view which shows other embodiment regarding a baffle member. It is a perspective view which shows the exhaust hood which is other embodiment of this invention. It is a perspective view which shows the exhaust hood seen from the arrow K direction in FIG. It is a bottom view of the exhaust hood shown in FIG. It is sectional drawing in the LL line in FIG. It is sectional drawing in the MM line | wire in FIG. It is a perspective view which shows the baffle member which comprises the exhaust hood shown in FIG. It is the figure seen from the arrow N direction in FIG. It is the figure seen from the arrow P direction in FIG. It is the figure seen from the arrow Q direction in FIG. It is a perspective view which shows the exhaust hood which is other embodiment. It is a vertical sectional view which shows the use condition of the conventional exhaust hood. It is a perspective view which shows the exhaust hood which is a prototype. FIG. 25 is a vertical sectional view showing a usage state of the exhaust hood shown in FIG. 24.

  An exhaust hood 100 according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 4, the exhaust hood 100 of the present embodiment is connected to the exhaust duct 20 and above the cooking range R with the opening 11 facing the cooking range R (see FIG. 9). And a rectifying member 30 disposed so as to close the opening portion 11 with a gap G provided between the hood member 10 and the inner peripheral edge 12 of the opening portion 11 of the hood member 10. ing.

  The hood member 10 is a substantially rectangular parallelepiped member having an open bottom surface and has a hollow portion 10a therein. The rectifying member 30 is a member having a substantially quadrangular shape when viewed from the bottom, and the size of the rectifying member 30 is a size that can be taken into and out of the hollow portion 10 a from the opening 11 of the hood member 10. As shown in FIG. 9, the rectifying member 30 is arranged such that the lower end thereof is positioned above the opening end surface of the opening 11 of the hood member 10 by a distance H. By increasing or decreasing the distance H, the gap G can be enlarged or reduced.

  As shown in FIGS. 5 and 6, the rectifying member 30 is divided into a plurality of regions 36 and 37 by a pair of joining lines 35 and 35 that are parallel to each other across the axial direction 30 c. The region 36 sandwiched between the pair of joining lines 35, 35 is formed of a bowl-shaped member obtained by cutting the cylindrical body along a plane parallel to its axial direction (axial direction 30c in the present embodiment). The two regions 37 and 37 located on both sides of the region 36 are formed of a flat plate material having a rectangular shape in plan view.

  As shown in FIG. 5 and FIG. 6, the rectifying member 30 stays in the smoke reservoir 32 formed by providing a recessed region 31 that is recessed upward over substantially the entire surface thereof. A through portion 33 serving as a smoke collection path for allowing the smoke S to flow into the hollow portion 10a in the hood member 10. The penetrating portion 33 is opened on the recessed region 31 side of the lid body 34 provided to close both end surface regions in the axial direction 30c.

  The penetrating portion 33 is provided in a region including the top 31a of the end face region of the rectifying member 30, and the opening portion has a bow shape. Although the dimension (opening area) of the penetration part 33 is not limited, it is desirable that the surface wind speed in the penetration part 33 during the exhaust operation is 2 m / sec (the same wind speed as the surface wind speed in the gap part G).

  As shown in FIGS. 3 to 8, in the rectifying member 30, the lid 34 attached along the outer peripheral edge 30 a intersecting the axial direction 30 c and the inner peripheral edge 12 of the opening 11 of the hood member 10. A rectifying member 30 is detachably attached to the opening 11 of the hood member 10 through an inverted L-shaped locking member 14 interposed between the oil recovery groove 13 formed.

  In the exhaust hood 100 of the present embodiment, two locking members 14 are provided on each of the two lids 34 provided on the rectifying member 30, and the lower end side of the locking member 14 is inserted into the oil collecting groove 13. The rectifying member 30 is supported so as to have a substantially horizontal posture in the opening portion 11 by being locked at the position, but the number and arrangement location of the locking members 14 are not limited. Note that the distance H and the width of the gap G shown in FIG. 9 can be changed by changing the leg length 14a of the locking member 14 (see FIGS. 7 and 8).

  Here, the use state of the exhaust hood 100 will be described with reference to FIG. As shown in FIG. 9, the smoke S generated during use of the cooking range R rises toward the opening 11 of the hood member 10, and the inner peripheral edge 12 of the opening 11 and the outer peripheral edge 30 a of the rectifying member 30. , 30 b (see FIG. 5), is drawn into the gap G, flows through the gap G into the cavity 10 a of the hood member 10, and then is discharged outside through the exhaust duct 20.

  On the other hand, after rising from the cooking range R to the vicinity of the opening 11 of the hood member 10, the smoke S that was not directly discharged from the gap G was formed in the recessed region 31 (see FIG. 5) recessed upward. After being attracted by the smoke reservoir 32 and temporarily retained in the smoke reservoir 32, it flows into the cavity 10 a through the two through portions 33, which are the smoke collection path, and is discharged to the outside via the exhaust duct 20. Is done. Therefore, the smoke S generated during cooking by the cooking range R can be efficiently discharged outside without escaping. Further, by providing the rectifying member 30, the attracting action by the exhaust duct 20 can be concentrated on the gap G and the through portion 33, so that the amount of exhaust air can be reduced compared to the case where the rectifying member 30 is not provided.

  The rectifying member 30 constituting the exhaust hood 100 has a shape in which the cylindrical body is separated by a plane parallel to the axial direction thereof, so that a recessed region 31 is formed over substantially the entire surface of the rectifying member 30. Therefore, the smoke S that has not been directly discharged from the gap G stays in the smoke storage portion 32 without leaking to the outside of the hood member 10 and is smoothly attracted to the penetration portion 33. Therefore, the smoke S generated during cooking can be efficiently attracted and retained and discharged without leakage.

  Further, the through portion 33 that is a smoke collection path is provided on a part of the lid body 34 that is provided in a state of closing the end face region in the axial direction 30 c of the rectifying member 30, so that the external appearance of the rectifying member 30 is provided. The smoke S that is attracted to the smoke accumulation part 32 is efficiently discharged into the hollow part 10a of the hood member 10 through the penetration part 33 without being directly discharged from the gap G without impairing the performance and functionality. can do.

  Furthermore, by providing the penetrating portion 33 in a region including the top 31a of the end face region of the flow regulating member 30, while preventing the leakage of the smoke S that is attracted to the smoke reservoir 32 and tends to stay in the upper portion thereof, It can be discharged efficiently. In the exhaust hood 100, the bow-shaped through-hole 33 is provided in the lid 34 of the rectifying member 30. However, the present invention is not limited to this, and the lid 34 has a single, circular, elliptical, or polygonal shape. A plurality of through holes can also be opened.

  On the other hand, an oil content collecting groove formed along the inner peripheral edge 12 of the opening 11 of the hood member 10 with the lower ends of the plurality of locking members 14 provided on the lid 34 positioned on the outer peripheral edge 30 a of the flow regulating member 30. The rectifying member 30 is detachably attached to the opening 11 of the hood member 10 by being locked in the inside 13.

  Therefore, the flow regulating member 30 can be attached without greatly changing the shape and structure of the hood member 10, and the detachability of the flow straightening member 30 with respect to the hood member 10 is good, so that the cleaning property and the maintainability are excellent. ing. Furthermore, since the rectifying member 30 can be attached without modifying the existing hood member, versatility is also good. It is also possible to provide light reflectivity by mirror-finishing at least the surface of the rectifying member 30 that faces the smoke reservoir 32 (for example, the recessed region 31).

  Next, based on FIG. 10, the exhaust hood 200 which is other embodiment of this invention is demonstrated. As shown in FIG. 10, the exhaust hood 200 of this embodiment is connected to the exhaust duct 20, and the hood member 10x is disposed above a cooking range (not shown) with the opening 11x facing downward. And a plurality of rectifying members 30 and 30 arranged so as to close the opening 11x with a gap G provided between the inner periphery 12x of the opening 11x of the hood member 10x.

  The opening 11x of the hood member 10x shown in FIG. 10 has a rectangular shape, and the opening area is twice the opening area of the opening 11 of the hood member 10 shown in FIG. The rectifying members 30 and 30 are arranged. The rectifying members 30, 30 are arranged such that the respective axial directions 30 c are perpendicular to the long side direction of the opening 11.

  When the exhaust hood 200 is configured, an excellent smoke discharge function can be obtained even when the exhaust hood is provided with a wide hood member installed in a large-scale kitchen facility or the like. In addition, since the number of the rectification | straightening members arrange | positioned at an opening part is not limited, it can set according to the size of the opening part of a hood member.

  Next, another embodiment relating to the flow regulating member will be described based on FIG. The schematic overall shape of the rectifying member 30x shown in FIG. 11 is a shape obtained by cutting a polygonal cylindrical body along a plane parallel to the axial direction 30xc. Further, like the rectifying member 30 shown in FIG. 5, the rectifying member 30 x has a smoke accumulation portion 32 x formed by providing a concave region 31 x that is recessed upward over substantially the entire surface thereof, and a smoke accumulation portion 32 x. A penetrating portion 33x serving as a smoke collection path for allowing the stagnant smoke to flow into the hollow portion in the hood member. The penetrating portion 33x is opened on the recessed region 31x side of the lid 34x provided so as to close both end surface regions in the axial direction 30xc.

  As shown in FIG. 11, the recessed region 31x of the rectifying member 30x is partitioned into a plurality of regions 36x, 37x, and 38x by two pairs of joint lines 35x1, 35x1 (35x2, 35x2) that are parallel to each other across the axial direction 30xc. Has been. These regions 36x, 37x, and 38x are all formed of a flat plate material that is rectangular in plan view. The rectifying member 30x shown in FIG. 11 does not need to round the recessed area 31 (cylindrical processing) unlike the rectifying member 30 shown in FIG. .

  Next, based on FIG. 12, other embodiment regarding a rectification | straightening member is described. The schematic overall shape of the rectifying member 30y shown in FIG. 12 is a shape obtained by cutting a polygonal cylindrical body along a plane parallel to the axial direction 30yc. As with the rectifying member 30x shown in FIG. 11, the rectifying member 30y stays in the smoke accumulation portion 32y formed by providing a recessed area 31y that is recessed upward over substantially the entire surface thereof. A plurality of through-holes 33y serving as a smoke collection path for allowing smoke to flow into the cavity in the hood member. The through-hole 33y is opened in a part of the rectifying member 30y, and both end surface regions in the axial direction 30yc of the rectifying member 30y are respectively closed by the lid 34y.

  As shown in FIG. 12, the recess region 31y of the rectifying member 30y is divided into a plurality of regions 36y, 37y, and 38y by two pairs of joint lines 35y1, 35y1 (35y2, 35y2) that are parallel to each other across the axial direction 30yc. Has been. These regions 36y, 37y, and 38y are all formed of a flat plate material that is rectangular in plan view. The plurality of through holes 33y are opened along a pair of joining lines 35y1. Each of the plurality of through-holes 33y has an oval shape, and is arranged at equal intervals in a state in which the major axis direction is collinear with the joint line 35y1.

  In the rectifying member 30y shown in FIG. 12, since a plurality of through holes 33y which are smoke collection paths are opened in the rectifying member 31y, the smoke attracted to the smoke reservoir 32y is quickly discharged through the through holes 33y. can do.

  The plurality of through holes 33y are formed along the pair of joining lines 35y1 in the recessed region 31y. However, the present invention is not limited to this, and therefore, the through holes 33y are provided in other portions, for example, a region including the top of the rectifying member 30y. You can also. Further, since the shape, size, or number of the through holes are not limited, they can be set according to use conditions.

  Next, based on FIGS. 13-21, the exhaust hood 300 which is other embodiment of this invention is demonstrated. In the exhaust hood 300, parts having the same structure and function as the constituent parts of the exhaust hood 100 shown in FIGS. 1 to 9 are given the same reference numerals as those in FIGS.

  As shown in FIGS. 13-17, the exhaust hood 300 of this embodiment is provided with the hood member 10 which has the same structure and function as the exhaust hood 100 shown in FIGS. 1-4, and the opening part 11 of the hood member 10 is provided. The rectifying member 30z is disposed. As will be described later, the rectifying member 30z and the rectifying member 30 shown in FIG.

  As shown in FIG. 18, in the rectifying member 30z, two locking members 14 are provided on each of the two outer peripheral edges 30b, 30b parallel to the axial direction 30c. Similar to the rectifying member 30 shown in FIG. 7, the rectifying member 30 z is positioned substantially horizontally in the opening 11 by inserting and locking the lower end side of the inverted L-shaped locking member 14 into the oil collecting groove 13. Is supported.

  Next, based on FIG. 22, the exhaust hood 400 which is other embodiment of this invention is demonstrated. As shown in FIG. 22, the exhaust hood 400 of this embodiment includes a hood member 10x having the same structure and function as the hood member 10x of the exhaust hood 200 shown in FIG. 10, and an inner peripheral edge of the opening 11x of the hood member 10x. And a plurality of rectifying members 30z and 30z arranged so as to close the opening portion 11x with a gap G provided between them and 12x.

  The opening 11x of the hood member 10x shown in FIG. 22 has a rectangular shape, and the opening area is twice the opening area of the opening 11 of the hood member 10 shown in FIG. The rectifying members 30z and 30z are arranged. The flow regulating members 30z and 30z are arranged so that the axial direction 30c thereof is parallel to the long side direction of the opening 11x.

  When the exhaust hood 400 is configured, an excellent smoke discharge function can be obtained even when the exhaust hood is used as an exhaust hood having a wide hood member installed in a large-scale kitchen facility or the like. In addition, since the number of the rectification | straightening members arrange | positioned at an opening part is not limited, it can set according to the size of the opening part of a hood member.

  The exhaust hoods 100, 200, 300, 400 and the like described with reference to FIGS. 1 to 22 exemplify embodiments according to the present invention, and the exhaust hood of the present invention includes the exhaust hoods 100, 200, It is not limited to 300, 400 or the like.

  The exhaust hood of the present invention is widely used in fields such as the construction industry as a material constituting an exhaust system that discharges smoke or gas generated during cooking by a cooking range installed in a kitchen or the like to the outside. Can do.

10, 10x Hood member 10a Cavity 11, 11x Opening 12, 12x Inner peripheral edge 13 Oil collecting groove 14 Locking member 14a Leg length 20 Exhaust duct 30, 30x, 30y, 30z Rectifying member 30a, 30b Outer peripheral edge 30c, 30xc, 30yc Axial direction 31 Recessed region 31a Top portion 32, 32x, 32y Smoke accumulation portion 33, 33x Through portion 34, 34x, 34y Lid 35, 35x1, 35x2, 35y1, 35y2 Join line 36, 36x, 37, 37x, 38x region 100, 200, 300, 400 Exhaust hood G Gap H Distance R Cooking range S Smoke

Claims (8)

A state in which a gap is provided between a hood member connected to the kitchen exhaust duct and disposed above the cooking range with the opening facing the cooking range, and an inner peripheral edge of the opening of the hood member A rectifying member disposed so as to close the opening, and at least a part of the rectifying member provided with a region recessed upward, and the smoke stagnation A smoke collection path for causing the smoke accumulated in the part to flow out into the cavity in the hood member, and
The rectifying member can be taken in and out of the hollow portion from the opening of the hood member, and the lower end of the rectifying member is disposed above the opening end surface of the opening of the hood member,
An exhaust hood characterized in that the smoke stagnation part is formed by forming at least a part of the rectifying member into a shape in which a cylindrical body is separated by a plane parallel to the axial direction . The collection as a smoke path, the straightening member exhaust hood according to claim 1, wherein is provided at least a part in the through part of the lid which is provided in a state of closing the end face region of the axial direction of the. The exhaust hood according to claim 2 , wherein the penetrating portion is provided in a region including a top of the end surface region of the rectifying member. The collection as a smoke path, claim 1 Symbol placement of the exhaust hood is provided at least a portion in the through hole of the rectifying member. The exhaust hood according to claim 4 , wherein the through hole is provided in a region including a top portion of the rectifying member. The exhaust hood according to any one of claims 1 to 5 , wherein a plurality of the rectifying members are arranged in an opening of the hood member. The rectifying member is an opening of the hood member via a locking member interposed between an outer peripheral edge of the rectifying member and an oil recovery groove formed along an inner peripheral edge of the opening of the hood member. The exhaust hood according to any one of claims 1 to 6 , wherein the exhaust hood is attachable to and detachable from the exhaust hood. The exhaust hood according to any one of claims 1 to 7 , wherein a light reflecting surface is provided in at least a part of a region of the rectifying member that forms the smoke accumulation portion.

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