JP2010175123A - Range hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a range hood having a waste gas flow passage member capable of improving daily maintainability by remarkably improving cleaning performance such as removal of an oil and fat content and of improving capture efficiency in the oil and fat content. <P>SOLUTION: The waste gas flow passage member 4 for directly interconnecting a suction port of an exhaust device 2 installed vertically on a hood part 1 and a communication port 7 opened on a top plate 1a of the hood part 1 is fixed to the communication port 7 from a capture space M side of the hood part 1 so as to enable removal, insertion, engagement and detachment. Waste gas captured in the capture space M is directly guided from the communication port 7 to the suction port 21 by the waste gas flow passage member 4, and is discharged to an outdoor space via an exhaust duct connected to a fan casing 2a of the exhaust device 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a range hood for sucking and collecting waste gas (contaminant) generated during cooking and exhausting it outdoors, and in particular, it has a shallow capture space that opens downward and is flat (thin). The present invention relates to a range hood that includes a formed hood portion and a blower unit that houses an exhaust device vertically in an exhaust box.

  The range hood includes a hood portion having a deep capture space for waste gas, and a deep type in which an exhaust device is installed in the hood portion (see, for example, Patent Document 1), or a hood portion having a shallow capture space There are various forms such as a flat (thin) type (for example, see Patent Document 2) in which an exhaust device is installed on the hood. This form is designed in consideration of the design that matches the system kitchen.

In recent years, slim type range hoods have been developed that have a very shallow capture space that most affects the capture of waste gas generated during cooking (see, for example, Patent Document 3).
This slim type range hood has been proposed as a system kitchen with various kitchen layouts that incorporate Western styles. In recent years, it has been designed without any restrictions on design (design) such as matching it to a Western style system kitchen. It is attracting attention because it allows a wide range of innovative designs to be implemented as a food section.

As shown in FIG. 1 of Patent Document 3, such a slim type range hood has a configuration in which a blower unit is installed on a flat (thin) hood portion.
And the exhaust apparatus which comprises an air blower unit is located in the latter half part side located in the kitchen wall side (outdoor side) in an exhaust box (fan box), as FIG. 1 of patent document 3 shows. In addition, the fan casing is vertically installed in the exhaust box with the suction port of the fan casing facing the front side (cooker side) of the hood portion.
As a result, the waste gas inflow space communicated via the communication port provided in the top plate of the hood portion on the front half side of the exhaust box on the front side of the exhaust device (suction port) (in upstream in Patent Document 3, (Referred to as the side air flow path 19). That is, the waste gas that is captured in the capture space of the hood portion that opens downward (referred to as suction opening 3 in Patent Document 3) and flows into the inflow space of the exhaust box from the communication port of the hood portion is The air is exhausted to the outside through an exhaust duct (referred to as a downstream air flow path 21 in Patent Document 3) connected to the fan casing from the suction port of the casing.

JP-A-8-327109 (see paragraph numbers 0009 to 0011 and FIG. 1) Japanese Patent Laying-Open No. 2005-282872 (see paragraph numbers 0014 to 0019 and FIG. 1) Japanese Patent Laying-Open No. 2005-106426 (see paragraph numbers 0030 and 0033 and FIG. 1)

  By the way, in the case of the deep type range hood currently disclosed by patent document 1, the frontage of the capture space is wide, and the hood part is formed so that it may occupy deeply toward the ceiling direction. For that reason, when cleaning such as wiping off (removing) the oil and fat adhering to the inner surface of the hood, etc., the entire inside of the capture space can be looked into from below, and the entrance to the capture space and its interior Since the user can check the degree of dirt in the hood portion with a part of the body such as the head, the user can perform it relatively easily.

On the other hand, in the case of the flat type (thin type) range hood disclosed in Patent Document 3, the depth of the capture space of the hood portion is shallow, and the depth of the exhaust box in which the exhaust device is installed vertically. Waste gas inflow space secured on the front half side except for the rear half side of the exhaust box in which the exhaust device is installed due to dimensional constraints (waste gas sucked and captured in the capture space by the suction force of the exhaust device) However, in the fan casing of the exhaust system, it is a deep space toward the ceiling, but it extends from the front plate of the exhaust box located behind the curtain plate to the side plate of the fan casing where the air inlet is opened. The direction is a narrow space.
Therefore, like the boot-type range hood described above, the entire interior of the inflow space is looked into from the lower side, or even if a part of the body is inserted, the overall condition of the inflow space is visually confirmed. However, it is difficult to remove the oil and fat adhering to the inner surface, etc., so the user can remove the oil and fat while groping while taking an unreasonable posture with only his hand in the inflow space. It had to be removed and cleaned.
Therefore, with the conventional flat type range hood, the oil and fat adhering to the flat surface can be removed, but the oil and fat adhering to the corners and other gaps cannot be completely removed. In addition to not being able to perform frequent cleaning, there was a problem in daily cleaning and daily maintenance such as a heavy burden on the user.

  Incidentally, the depth dimension of the exhaust box is limited in relation to the cabinet of the system kitchen. In other words, in the case of a range hood installed side by side with the cabinet, the front of the exhaust box, in particular, the duct cover that is installed from the top of the hood to the ceiling to hide the exhaust box and the front of the cabinet There will be a step between and the appearance will be impaired. Therefore, the exhaust box is manufactured with a depth dimension so that the front surface of the duct cover is flush with the front surface of the cabinet.

Therefore, the present invention was devised to solve the above-mentioned problems, and is a waste gas passage member that can improve daily maintenance by dramatically improving cleaning properties such as removing oil and fat. It is to provide a range hood equipped with.
Furthermore, this invention is providing the range hood provided with the waste gas flow path member which can improve the capture efficiency of fats and oils.

In order to solve the above problems, in the present invention, a hood portion having a capture space, and an exhaust device installed on the top plate of the hood portion, the waste gas captured in the capture space, The air is sucked into the fan casing from the suction port opened in the fan casing of the exhaust device through the communication port opened in the top plate, and exhausted to the outside through the exhaust duct connected to the fan casing. A range hood configured,
A waste gas channel member for guiding the waste gas from the communication port to the suction port, the waste gas channel member is detachably held from the capture space portion side to the communication port, It is formed in a substantially cylindrical shape that connects the communication port and the suction port.
Here, the waste gas flow path member is inserted into the communication port, and when installed in the communication port, a lower end port having a flange that abuts along the opening edge of the communication port, and inside the fan casing A trumpet port connected to the suction port so as to face the trumpet, and the trumpet port inserted the waste gas flow path member into the communication port until the flange contacts the opening edge. Sometimes, it is preferable that they are provided integrally at a position where the core is aligned with the suction port.
Further, a locking means is provided between the flange of the waste gas flow path member and the opening edge of the communication port, and the locking means inserts the waste gas flow path member from the communication port. In this state, it is preferable that the waste gas flow path member is detachably fixed to the communication port by moving toward the fan casing side.

According to such a configuration, the waste gas flow path member that is detachably attached to the communication opening opened in the top plate of the hood portion allows the communication opening (capturing space) and the suction opening of the fan casing of the exhaust device to The connection structure can be directly connected.
Thereby, at the time of daily maintenance, by removing the waste gas passage member from the connection port, the oil and fat adhering to the inner surface of the waste gas passage member can be removed by washing in a sink or the like. .
In other words, as with the prior art, the depth dimension is restricted due to the balance with the cabinet of the system kitchen, etc., and the exhaust system is installed vertically on the second half side, so the frontage width is narrow and the ceiling direction is Routinely without taking an unreasonable posture, such as removing the oil and fat (wiping away) with a hand in the space of the downward opening secured on the front half of the exhaust box with depth toward Maintenance can be performed.

Further, the trumpet opening opened in the waste gas passage member is aligned with the opening shaft core of the suction opening of the fan casing by inserting the waste gas passage member into the front of the fan casing from the communication port of the hood part. The
Thereby, it can be set as the connection structure which connected the connection port and the suction inlet by simple operation which only inserts a waste gas flow path member from the communication port of a hood part. In addition, the waste gas flow path member is inserted into the front of the fan casing from the communication port, and the trumpet port is moved in a direction to connect to the suction port of the fan casing. It can be fixed freely.

Further, in the present invention, the waste gas flow path member is provided with a waste gas collision part for causing the waste gas to collide and capturing oil and fat contained in the waste gas. It is characterized by.
Here, the waste gas collision portion is formed in a tongue-like shape or unevenness on the inner surface of the waste gas flow path member so as to cross the flow direction of the waste gas flowing from the communication port toward the suction port. It is suitable that it is formed in a shape.

  According to such a configuration, the waste gas that flows into the waste gas flow path member from the capture space that opens downward in the hood portion and flows along the inner surface of the waste gas flow path member has a tongue-like shape or unevenness. The direction of flow is changed by the collision (contact) with the waste gas collision part formed in the shape. Thereby, the fats and oils contained in waste gas are attached to a waste gas collision part, and are captured.

Since the range hood of the present invention is configured as described above, the waste gas collected in the capture space of the hood part is installed vertically on the communication port of the hood part and the hood part. The exhaust gas can be discharged to the fan casing of the exhaust device through the exhaust gas duct member directly connected to the suction port of the exhaust device and exhausted from the fan casing through the exhaust duct.
This eliminates the need for cleaning such as removing fats and oils in a groping state while taking an unreasonable posture as in the prior art, and removes the waste gas flow path member from the communication port and removes the sink, etc. It can be washed in a comfortable position.
As described above, according to the present invention, it is possible to expect the improvement of daily maintenance by greatly improving the cleaning property such as removing oil and fat. In addition, it eliminates the need for a large exhaust box to cover the entire exhaust system and to secure an inflow space for allowing waste gas to flow into the exhaust system from the capture space of the hood through the communication port. We can expect cost reduction by reduction.

  Further, according to the present invention, the waste gas flow path member is provided with a waste gas collision portion formed in a tongue shape or an uneven shape for colliding (contacting) the waste gas and capturing the oil and fat. . Thereby, the fat and oil content can be efficiently captured and recovered by effectively utilizing the inside of the waste gas flow path member.

In addition, the waste gas flow path member includes a grease filter for capturing oil and fat by meandering the flow of waste gas, and further includes an oil receiver for collecting the captured oil and fat. By removing the waste gas flow path member from the exhaust box, the grease filter and the oil receiver can be removed together with the waste gas flow path member and washed in a sink or the like.
Moreover, the waste gas passage member enables the oil and fat content to be captured by the grease filter in addition to the oil and fat content captured by the waste gas collision portion. In other words, the waste gas flow path member not only constitutes an exhaust flow path for waste gas connected so as to directly connect the communication port of the hood part and the suction port of the exhaust device, but also the fat and oil contained in the waste gas. It is effectively used as a capture channel for capturing oil and improves the capture efficiency of oil and fat.

It is a vertical side view which shows the range hood of this invention provided with the waste gas flow path member which concerns on 1st Embodiment. It is the II-II line longitudinal cross-sectional view of FIG. 1, (a) shows a state when a waste gas channel member is inserted in a communication port, and it pulls out and takes out, (b) shows a waste gas channel member. The state fixed to the opening edge part of the connection port is shown. It is a perspective view when the same range hood is looked up from diagonally lower side. The engagement / disengagement member which concerns on this embodiment is shown, (a) is a perspective view, (b) is a front view which shows a latching body longitudinally. It is a perspective view showing the gas channel member concerning a 1st embodiment. It is a perspective view which shows a range hood when the state which rotated the baffle plate downward and opened the capture space is looked up from diagonally downward. It is a perspective view which shows a range hood when the state which pulled out and removed the waste gas flow path member from the communication port is looked up from diagonally lower side. It is a vertical side view which shows other embodiment of the cooker hood which concerns on this invention provided with the storage box which installs a waste gas flow path member on the food | hood part. It is a vertical side view which shows other embodiment of the range hood which concerns on this invention provided with the storage box which installs an exhaust apparatus on the food | hood part. It is a vertical side view which shows other embodiment of the range hood of this invention provided with the grease filter in the lower end opening of a waste gas flow path member. It is a perspective view which shows the waste gas flow path member and grease filter of the same range hood. It is a vertical side view which shows other embodiment of the cooker hood which concerns on this invention provided with the oil receiver along the opening periphery of the lower end port of a waste gas flow path member. It is a perspective view which shows the waste gas flow path member and oil receiver of the same range hood. It is a vertical side view which shows other embodiment of the range hood which concerns on this invention provided with the container which has a grease filter and an oil sump part in the lower end port of a waste gas flow path member. It is a perspective view which shows the waste gas flow path member and container of the same range hood. It is a vertical side view which shows the gas flow path member which concerns on 2nd Embodiment. It is a vertical side view which shows the waste gas flow path member which concerns on 3rd Embodiment. The gas flow path member which concerns on 4th Embodiment is shown, (a) is a vertical side view, (b) is the same front view when it sees from the cook side. It is a perspective view which decomposes | disassembles and shows the gas flow path member which concerns on 5th Embodiment. It is a vertical side view which shows the assembly state of the gas flow path member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
FIG. 1 is a longitudinal side view showing a range hood of the present invention provided with a waste gas passage member according to the first embodiment, FIG. 2 is a longitudinal front view of the range hood, and FIG. It is a perspective view when the same range hood is looked up from diagonally lower side.

≪Configuration of range hood≫
The range hood A is installed almost directly above a cooking utensil (not shown), and is configured to suck and capture waste gas such as oil, steam, hot air, etc. generated during cooking and exhaust it to the outside through the exhaust duct 3. ing.
As shown in FIG. 1, the range hood A is configured by mounting an exhaust device 2 on a flat (thin) hood portion 1.

As shown in FIG. 1, the range hood A has a kitchen ceiling K from the top plate 1a of the hood portion 1 so as to obscure the exhaust device 2, the exhaust duct 3, and a waste gas flow path member 28 to be described later. A duct cover 4 having a height up to -2.
This duct cover 4 is composed of a cover member of two members formed in a substantially U-shaped square cylindrical shape in plan view, and the height (long) from the top plate 1a of the hood portion 1 to the ceiling K-2. The height of the cover part can be adjusted according to the height.

≪Food part composition≫
As shown in FIG. 1, the hood portion 1 is formed in a flat box shape having a capture space M that opens downward. And the food | hood part 1 is provided with the operation switch part 5 in the front part 1b which faces a cooker side.

Moreover, the food | hood part 1 is provided with the communication port 7 in the top plate 1a as shown in FIG. 1 and FIG.
The communication port 7 is substantially horizontally long in a plan view that is long in the left-right direction of the hood portion 1 near the center side except for the rear side of the top plate 1a where the fan casing 18 is placed vertically. It is formed in a rectangular shape (see FIG. 7 described later).

  Furthermore, the hood part 1 is provided with the baffle plate 8 for ensuring the suction clearance S between the downward opening peripheral edges of the capture space M, as shown in FIG. As a result, the waste gas G is vigorously sucked into the capture space M from the suction gap S along the rectifying plate 8.

<Composition of current plate>
The current plate 8 is formed to be slightly smaller than the opening shape of the peripheral edge of the downward opening of the capture space M of the hood portion 1. The rectifying plate 8 is supported by left and right support members 9 provided in the capture space M on the rear side of the hood portion 1 so that the rear side is rotatable and can be appropriately attached and detached. The front side is detachably supported by the left and right engaging / disengaging members 10 provided in the space M.
As a result, when the waste gas flow path member 4 is removed and cleaned so as to be pulled out from the communication port 7 of the hood portion 1 or when the oil and fat adhering to the back surface side (inside) of the rectifying plate 8 is wiped off. The rectifying plate 8 is rotated downward toward the rear side (kitchen wall surface K-1 side) of the hood portion 1 to open the capture space M (see FIGS. 6 and 7 described later). Alternatively, the current plate 8 itself can be removed when the current plate 8 is washed in a sink or the like.

≪Configuration of support member≫
As shown in FIG. 1 and FIG. 6 to be described later, the left and right support members 9 include a hook collar 9a attached to the lower surface side of the top plate 1a of the hood section 1 in a substantially U-shape, and the hook collar 9a, and a hook portion 9b attached to the upper surface side of the rectifying plate 8 so as to be rotatable and attachable / detachable as appropriate.

≪Configuration of engagement / disengagement member≫
FIG. 4 is a perspective view and a front view showing the engaging / disengaging member according to the present embodiment.
As shown in FIGS. 1 and 4, the left and right engaging / disengaging members 10 intersect a movable pin 10a biased by a compression spring 11 attached to the lower surface of the top plate 1a of the hood portion 1 and the movable pin 10a. It is configured to include a locking body 10b having a pin locking hole 12 attached to the upper surface of the rectifying plate 8 so as to be detachably locked.

The movable pin 10a is provided in a spring accommodating body 13 attached to the upper surface of the rectifying plate 8 via an L-shaped bracket 14 so as to freely advance and retract, and is advanced by a compression spring 11 accommodated in the spring accommodating body 13 (see FIG. 4 (see (a) of FIG. 4), it is retracted (pressed) into the spring housing 13 against the compression spring 11 (see (b) of FIG. 4).
As shown in FIG. 4, the movable pin 10 a is formed by a head portion 15 having a slightly larger outer diameter, and a shaft portion 16 that is incorporated into the spring housing 13 so as to be movable forward and backward.

As shown in FIG. 4, the locking body 10 b includes a tongue piece portion 17 that is inclined outward in order to retract the head portion 15 of the movable pin 10 a against the compression spring 11.
Moreover, the latching body 10b is provided with the pin latching hole 12 for latching the movable pin 10a removably. The pin locking hole 12 has an opening 12a having a diameter larger than that of the head 15 of the movable pin 10a at the central portion of the locking body 10b, and a shaft portion of the movable pin 10a communicating with the upper side of the opening 12a. 16 is formed in a substantially dharma hole shape from a bearing portion 12b for receiving 16.

Moreover, as shown in FIG. 1, the baffle plate 8 is provided with the collection | recovery window 25 for collect | recovering the fats and oils dripped from the inner surface etc. of the waste gas flow path member 28, and the opening lower surface side ( An oil receiver (oil tray) 26 is provided on the front surface side.
Although not shown, the oil receiver 26 is detachably attached to the rectifying plate 8 by an appropriate means such as a slide method. As described above, the rectifying plate 8 by the left and right engaging / disengaging members 10 is provided. When the catching state M of the hood portion 1 is opened by rotating the rectifying plate 8 downward with the right and left support members 9 as fulcrums, the latching state of the hood portion 1 can be easily removed (described later). FIG. 6).

≪Exhaust system configuration≫
As shown in FIG. 1, the exhaust device 2 is installed vertically on the rear side of the hood portion 1 with respect to the opening position of the communication port 7 of the hood portion 1. An exhaust fan (such as a centrifugal fan or a multiblade fan) 20 that is axially supported by the fan motor 19 and accommodated coaxially is provided in the fan casing 18.

≪Fan casing configuration≫
As shown in FIG. 1 and FIG. 5 to be described later, the fan casing 18 includes a volute-shaped body portion 18a and a front plate 18b that is fixedly attached to the front and rear edges by welding or the like so as to close the front and rear of the body portion 18a. And the rear side plate 18c.
The fan casing 18 includes a suction port 21 in the front plate 18b, and a fan motor 19 is attached to the rear plate 18c positioned on the opening axis of the suction port 21 by screws or the like.
As shown in FIG. 1, the fan casing 18 formed in this way includes an upper end port 23, and the exhaust duct 3 is connected to the upper end port 23 via a connection tube 22.

  And the range hood A which concerns on this embodiment comprised in this way WHEREIN: The gas flow path member 28 connected so that the connection port 7 of the food | hood part 1 and the suction inlet 21 of the fan casing 18 may be connected directly, is capture space. The connecting port 7 is detachably provided from the M side.

<< Configuration of Waste Gas Channel Member According to First Embodiment >>
FIG. 5 is a perspective view showing the gas flow path member according to the first embodiment. Here, description will be made with reference to FIGS. 1 and 2 as appropriate.
As shown in FIGS. 1 and 2, the waste gas flow path member 28 has a substantially vertically long rectangular shape corresponding to the vertical placement height of the fan casing 18 on the hood portion 1, and is a communication port that is long in the left-right direction of the hood portion 1. 7 is formed in a substantially horizontally long rectangular shape having a lower end opening 29 corresponding to the opening shape of 7.
As shown in FIGS. 1 and 5, the waste gas flow path member 28 has a vertical wall surface portion 28 a in close contact with the front side plate 18 b of the fan casing 18, and a suction port 21 direction (exhaust device 2 b side). The lower wall opening is formed in a box shape having a curved wall surface portion 28b that gradually curves toward the upper side, and both side wall surface portions 28c that connect both side edges of the vertical wall surface portion 28a and the curved wall surface portion 2bb. Yes.

  Further, the waste gas flow path member 28 is brought into close contact with the opening edge of the communication port 7 when inserted at the height of the fan casing 18 from the communication port 7 (capture space M side). The flange 30 is provided on the peripheral edge of the opening of the lower end port 29, and when the flange 30 abuts on the opening edge of the communication port 7, alignment with the opening shaft core of the suction port 21 of the fan casing 18 is performed. The vertical wall surface portion 28 a is provided with a trumpet port 31 for being connected to the suction port 21.

As shown in FIG. 5, the flange 30 is formed with a wider width on the vertical wall surface portion 28 a and the curved wall surface portion 28 b side, particularly on the curved wall surface portion 28 b side, at the periphery of the opening of the lower end opening 29 than the both side wall surface portions 28 c side. Has been.
Thus, after the waste gas passage member 28 is inserted into the communication port 7 until the flange 30 abuts the opening edge of the communication port 7, the trumpet port 31 provided in the vertical wall surface portion 28a is shown in FIG. As shown, after the lateral movement of the waste gas passage member 28 toward the fan casing 18 when it is connected to the suction port 21 in a state of facing toward the inside of the fan casing 18, the waste gas passage member 28. The gap formed between the opening periphery of the lower end opening 29 and the opening periphery of the communication opening 7 is reliably closed by the flange 30 (see FIGS. 1 and 2).

  The trumpet port 31 is not subject to inflow resistance (airflow resistance) when waste gas flowing into the waste gas flow path member 28 is subjected to inflow resistance, like a well-known bell mouth attached to the fan casing by screwing or the like. The vertical wall surface portion 28a is punched into the vertical wall surface 28a at a position aligned with the opening axis of the suction port 21 of the fan casing 18 so as to be quickly sucked into the fan casing 18, and is slightly more than the diameter of the suction port 21. It is integrally formed with a small aperture.

  In the present embodiment, the locking means 32 for removably fixing the waste gas flow path member 28 formed in this way to the communication port 7 is provided with the flange 30 of the waste gas flow path member 28, It is provided between the opening periphery of the communication port 7.

≪Configuration of locking means≫
As shown in FIGS. 1, 2, and 5, the locking means 32 includes fixing holes 32 a provided in the flanges 30 on both sides of the short side that are continuous with the side wall portions 20 c of the gas flow path member 28, and this fixing. A narrow fixing screw 32b that is screwed into a female screw portion 24 provided by burring on both side edges of the short side of the opening of the communication port 7 in a positional relationship corresponding to the hole 32a.

  As shown in FIG. 5, the fixing hole 32 a is formed on the fixing piece portions 33 on both sides provided to protrude outwardly from a part of the flange 30 on both sides of the shorter side than the head portion 36 of the fixing screw 32 b. An opening 34 provided with a larger diameter around the shaft, and a shaft insertion provided with an opening width corresponding to the shaft diameter of the screw portion 37 of the fixing screw 32b from the opening 34 toward the curved wall surface portion 28b. The part 35 is formed in a substantially keyhole shape in plan view.

  The fixing screw 32b is knurled and other anti-slip is provided on the outer peripheral surface of the head 36 so that the fixing screw 32b can be pinched with a bare hand without using a screwdriver or other tightening tools.

Further, in the present embodiment, as shown in FIG. 2B, when the waste gas flow path member 28 is inserted into the communication port 7 or inserted and moved laterally, the waste gas flow path member 28 is disposed. Is provided with a temporary fixing locking member 60 for holding in a temporarily fixed state.
The temporary fixing locking member 60 includes a boss portion 62 that is detachably locked in a boss locking hole 61 opened in one side wall surface portion 28c of the waste gas flow path member 20.
The boss portion 62 is provided in a spring accommodating body 64 attached to the upper surface of the top plate 1a of the hood portion 1 via an L-shaped bracket 63 and the like so as to be able to advance and retract. A compression spring or the like (not shown) is accommodated in the spring accommodating body 64.
As a result, the boss 62 is advanced by a compression spring or the like and inserted through the boss locking hole 61 to temporarily hold the waste gas flow path member 28 (state (b) in FIG. 2). The boss 62 is retracted (pushed) into the spring accommodating body 64 against the compression spring, whereby the temporary holding of the waste gas passage member 28 is released, and the waste gas passage member 28 is released. Can be removed from the communication port 7 and removed.
In other words, even when the fixing screw 32b is completely removed when the fixing screw 32b is loosened by the temporary fixing locking member 60 and the waste gas passage member 28 is pulled out and removed from the communication port 7, the waste gas passage is removed. It is possible to prevent the member 28 from inadvertently falling out of the communication port 7.

  Although not shown in the figure, the temporary holding of the waste gas flow path member 28 by the boss portion 62 is changed to the boss locking hole 61, and the boss locking is performed on the one side wall surface portion 28 c of the waste gas flow path member 28. The waste gas flow path member 28 can be temporarily fixed and held by inserting and locking the boss 62 into the boss locking recess.

Next, the operation of the range hood A according to the present embodiment configured as described above will be briefly described.
FIG. 6 is a perspective view showing the range hood when the flow straightening plate is turned downward toward the rear side (kitchen wall surface side) of the hood portion and the state where the capture space is opened is looked up obliquely from below. FIG. 7 is a perspective view showing the range hood when the state in which the waste gas flow path member is pulled out from the communication port and removed is viewed obliquely from below. Here, description will be made with reference to FIGS. 1 and 2 as appropriate.
Waste gas flows from the trap space 31 of the hood portion 1 through the waste gas flow path member 28 into the fan casing 18 through the trumpet port 31. At this time, the waste gas flowing along the curved wall surface portion 28b of the waste gas flow path member 28 is guided toward the trumpet port 31 by the curved upper surface portion of the curved wall surface portion 28b and flows into the fan casing 18 to be exhausted. The air is exhausted outside through the duct 3.

And when performing cleaning for removing oil and fat adhering to the inner surface of the waste gas flow path member 28, the engagement member 10 supporting the front side of the rectifying plate 8 is operated to release the support state, As shown in FIG. 6, the rectifying plate 8 is turned downward with the rear support member 9 as a fulcrum to open the capture space M of the hood portion 1.
Thereafter, as shown in FIG. 2A, the fixing screw 32b of the locking means 32 is loosened, and the opening 34 of the fixing hole 32a is positioned coaxially with respect to the head 36 of the fixing screw 32b (see FIG. 2A). The waste gas channel member 28 is moved laterally in the left direction in FIG. 1 (from the state (b) of FIG. 2 to the state (a)), and the waste gas channel member 28 is fixed by the locking means 32. Is released.
As a result, as shown in FIG. 7, the waste gas flow path member 28 is pulled out and removed from the communication port 7, and dirt such as oil and fat adhering to the inner surface of the waste gas flow path member 28 by washing in a sink or the like is removed. It can be removed cleanly.

When the waste gas flow path member 28 is washed and then attached to the range hood A, it is fixed to both edges of the short side of the communication port 7 by the locking means 32 on both sides by a procedure reverse to the above-described removal procedure. In this state, the trumpet port 31 of the waste gas passage member 28 can be connected to the suction port 21 of the fan casing 18.
Thereby, the connection port 7 and the suction port 31 of the fan casing 18 can be returned to the connected state directly connected by the waste gas flow path member 28 (the state of FIGS. 1 and 2B). After the waste gas flow path member 28 is attached, the flow straightening plate 8 is returned to the original state so as to close the capture space M as shown in FIGS. 1 and 3 (the state shown in FIGS. 1 and 3).

FIGS. 8-15 shows each other embodiment of the range hood of this invention provided with the waste gas flow path member which concerns on 1st Embodiment.
FIG. 8 is a longitudinal sectional side view showing another embodiment of the range hood according to the present invention in which a storage box into which a waste gas flow path member is inserted and installed is provided on the hood portion.
As shown in FIG. 8, the range hood A-1 of this embodiment includes a storage box 28 a on the hood portion 1, and includes a waste gas flow path member 28 inserted from the communication port 7. 1 is configured to be connected to the suction port 21 of the fan casing 18 in a state of being installed inside. Since the other components are basically the same as those of the embodiment shown in FIG. 1 described above, the same reference numerals are given to the same components, and redundant description is omitted.

That is, as shown in FIG. 8, a storage box 28 a having a predetermined height along the opening shape of the communication port 7 is provided on the top plate 1 a of the hood portion 1.
The storage box 28a has a horizontally long rectangular shape with the lower surface opened in the shape of the opening of the communication port 7, and the vertical height of the fan casing 18 (the height at which the waste gas flow path member 28 can be installed). It is formed in a substantially vertically long rectangular shape corresponding to. The storage box 28a is attached to the top plate 1a by screws or the like.
As shown in FIG. 8, a communication port 31 a having the same diameter as the suction port 21 is provided on the wall surface of the storage box 28 a that is in close contact with the front side plate 18 b of the fan casing 18 in which the suction port 21 is opened. ing. As a result, the waste gas flow path member 28 inserted from the communication port 7 and installed in the storage box 28a is laterally moved toward the fan casing 18 so that the trumpet port 31 penetrates the communication port 31a. The suction port 21 is connected so as to face the fan casing 18.

  As described above, according to the range hood A-1 including the storage box 28a on the hood portion 1, the waste gas passage member 28 is stably inserted from the communication port 7, and the waste gas passage member 28 The trumpet port 31 can be connected to the suction port 21 of the fan casing 18. In addition, a large exhaust box as in the prior art is not required, and a small storage box 28a, which is about half of that, is sufficient, so that it is possible to expect effects such as a reduction in manufacturing costs including material costs.

FIG. 9 is a longitudinal side view showing another embodiment of the range hood according to the present invention in which a storage box for installing the exhaust device is provided on the hood portion.
In addition, as shown in FIG. 9, the range hood A-2 of this embodiment is equipped with the storage box 2a on the hood part 1, and the state where the fan casing 18 is suspended similarly to the exhaust box of the prior art. It can be installed inside. Since the other components are basically the same as those of the embodiment shown in FIG. 1 described above, the same reference numerals are given to the same components, and redundant description is omitted.

That is, as shown in FIG. 9, a storage box 2 a having a predetermined height is provided on the top plate 1 a of the hood portion 1 so as to be positioned on the rear half side of the hood portion 1 from the opening position of the communication port 7. .
The storage box 2a is substantially square in a cross-sectional view with a lower surface and a front surface (side of the waste gas passage member 28) opened at a predetermined height at which the fan casing 18 of the exhaust device 2 can be installed vertically. It is formed into a shape. The storage box 2a is attached to the top plate 1a by screws or the like.

As described above, according to the range hood A-2 provided with the storage box 2a on the hood portion 1, the upper end port 23 of the fan casing 18 connected to the exhaust duct 3 via the connection tube 22 is connected to the storage box. By attaching to the upper surface plate of 2-1 by screwing or the like, it can be installed in the storage box 2a in a vertically placed state in which the fan casing 18 is suspended like the exhaust box of the prior art.
In addition, since the storage box 2a is relatively small compared to the large exhaust box of the prior art, it can be expected that the production cost including the material cost is reduced.

FIG. 10 is a vertical side view of a range hood according to the present invention provided with a grease filter at the lower end of the waste gas passage member, and FIG. 11 is a perspective view showing the waste gas passage member and the grease filter.
As shown in FIG. 10, the range hood A-3 of this embodiment has a grease filter 38 for separating and capturing oil and fat contained in the waste gas as a lower end 29 of the waste gas flow path member 28. It is configured to prepare for. Since the other components are basically the same as those of the embodiment shown in FIG. 1 described above, the same reference numerals are given to the same components, and redundant description is omitted.

  That is, as shown in FIGS. 10 and 11, the range hood A-3 has a grease filter 38 that is formed in a planar shape (flat plate shape) so as to close the lower end port 29 of the waste gas passage member 28. It is provided so that it can be freely inserted and removed with respect to the latching fittings 39 respectively provided at the opening edge portions on both sides of the short side of the end opening 29.

The grease filter 38 is a plan view having a size corresponding to the opening area of the lower end port 29 of the waste gas passage member 28 using a metal thin plate made of an aluminum plate or a stainless steel plate having excellent corrosion resistance. It has a well-known filter structure formed in a substantially rectangular shape.
For example, a filter made of a wire mesh or a lath mesh, a filter made of punching metal, or a thin metal plate with a large number of slits with a pitch of several millimeters so as to obtain a high oil / fat capture rate with a low ventilation resistance. By providing a vent that is inclined in one direction without leaving a plane part between the slits by cutting and raising the tongue piece part, which is a plane part partitioned by the slits, so as to be refracted in one direction. The filter can be

  The latch fittings 39 are formed in a substantially Z shape, and as shown in FIG. 11, spot welding or the like is performed on the opening edges on both sides of the short side of the lower end 29 of the waste gas passage member 28. It is attached.

As described above, according to the range hood A-3 provided with the grease filter 38 at the lower end 29 of the waste gas passage member 28, the waste gas passage member 28 is flowed into the waste gas passage member 28 from the capture space M of the hood portion 1. When the waste gas passes through the grease filter 38, the oil and fat contained in the waste gas can be separated and captured by collision or contact.
Thereby, the adhesion rate of the fats and oils to the inner surface of the waste gas flow path member 28, the inner surface of the fan casing 18, etc. can be reduced.
The grease filter 38 can be cleaned by round washing in a sink or the like, for example, by being removed together with the waste gas flow path member 28.

FIG. 12 is a vertical side view of the range hood according to the present invention provided with an oil receiver along the opening periphery of the lower end opening of the waste gas flow path member. FIG. 13 shows the waste gas flow path member and the oil receiver. It is a perspective view shown.
In addition, as shown in FIG. 12, the range hood A-4 of this embodiment collect | recovers the fats and oils separated and captured from waste gas along the opening periphery of the lower end port 29 of the waste gas flow path member 28. As shown in FIG. The oil receiver 40 is provided. Since the other components are basically the same as those of the embodiment shown in FIGS. 1 and 9 described above, the same reference numerals are given to the same components, and redundant description is omitted.

  That is, the range hood A-4 includes an oil receiver 40 along the opening periphery of the lower end port 29 of the waste gas flow path member 28, as shown in FIGS.

As shown in FIGS. 12 and 13, the oil receiver 40 is formed in a ring shape having a substantially rectangular shape in plan view along the opening periphery of the lower end opening 29, and the cross section opening upward is substantially The oil reservoir 40a is formed in a substantially bowl shape such as a letter shape or a substantially semicircular shape.
And the oil receiver 40 is a support piece for removably supporting the above-mentioned latch fitting 39 provided at the opening edge of the lower end port 29 of the waste gas passage member 28 on both sides of the short side. Each part 41 is provided in a total of four places.

Thus, according to the range hood A-4 provided with the oil receiver 40 along the opening periphery of the lower end port 29 of the waste gas flow path member 28, the waste gas flow path member 28 is separated from the waste gas. The oil and fat adhering to the inner surface is collected so as to drop onto the oil reservoir 40a of the oil receiver 40.
As a result, in the waste gas flow path member 28, the oil and fat content separated and captured from the waste gas does not drop on the rectifying plate 8 and spread over the entire upper surface of the rectifying plate 8. That is, in daily cleaning, the oil receiver 40 is removed from the lower end 29 of the waste gas passage member 28, and the oil and fat accumulated in the oil reservoir 40a can be removed. Is planned.

FIG. 14 is a vertical side view of a range hood according to the present invention provided with a container having a grease filter and an oil reservoir at the lower end of the waste gas flow path member, and FIG. 15 is a view of the waste gas flow path member and the container. FIG.
In addition, in the range hood A-5 of this embodiment, as shown in FIG. 14, the fat and oil contained in the waste gas is separated and captured at the lower end 29 of the waste gas flow path member 28, and further captured. A container 42 formed so as to collect the oil and fat content is provided at the lower end 29 of the waste gas flow path member 28. Since the other components are basically the same as those of the embodiment shown in FIG. 1 described above, the same reference numerals are given to the same components, and redundant description is omitted.

  That is, as shown in FIGS. 14 and 15, the range hood A-5 is detachably supported with respect to the latch fittings 39 respectively provided at the opening edge of the lower end port 29 of the waste gas flow path member 28. The container 42 is provided.

As shown in FIGS. 14 and 15, the container 42 is made of a metal thin plate made of an aluminum plate or a stainless steel plate having excellent corrosion resistance and the like, and has an opening area of the lower end port 29 of the waste gas passage member 28. A plan view having an opening of a corresponding size has a substantially rectangular shape, and is formed in a saucer shape having an appropriate depth.
The container 42 has a height for securing the oil reservoir 42b on the bottom side and reaches the opening side, for example, as in the embodiment of FIGS. A filter made of a mesh and a filter made of punching metal, or a grease filter 42a made of a filter structure having a vent hole inclined in one direction by cutting and raising the tongue piece so as to be refracted in one direction. It is provided on the peripheral wall.

  Moreover, the container 42 is equipped with the flange 43 made to protrude outward and horizontal at the opening periphery. As a result, as shown in FIG. 15 (b), the flange 43 can be removably supported with respect to the above-described latch metal 39, and the container 42 can be provided at the lower end port 29 of the waste gas passage member 28. I am doing so.

As described above, according to the range hood A-5 including the container 42 having the grease filter 42a and the oil reservoir 42b, the separation and capture of the oil and fat contained in the waste gas, and the recovery of the oil and fat, Is performed by a container 42 that is detachably provided at the lower end port 29 of the waste gas flow path member 28.
As a result, the adhesion rate of oil and fat to the inner surface of the waste gas passage member 28 and the inner surface of the fan casing 18 can be reduced, and the sink 42 can be removed by removing the container 42 together with the waste gas passage member 28. It can be washed by round washing etc.

<< Configuration of Waste Gas Channel Member According to Second Embodiment >>
FIG. 16 is a longitudinal side view showing a gas flow path member according to the second embodiment.
As shown in FIG. 16, the waste gas flow path member 28-1 of this embodiment is configured such that a separately formed trumpet mouth, so-called bell mouth 31-1, is provided in the vertical wall surface portion 28a. Since the other components are basically the same as the above-described waste gas flow path member 28, the same components are denoted by the same reference numerals, and redundant description is omitted.

  That is, the waste gas flow path member 28-1 is formed so as to be connected to the suction port 21 of the fan casing 18 as described above by providing the bell mouth 31-1 on the vertical wall surface portion 28a. Has been.

And as shown in FIG. 16, the waste gas flow path member 28-1 is provided with the opening window 44 in the vertical wall surface part 28a. And the screw part 46 is provided corresponding to the screw hole 45 provided in the bell mouth 31-1 in several places of the opening periphery of this opening window 44. As shown in FIG.
Thus, the bell mouth 31-1 can be screwed to the inner side surface of the vertical wall surface portion 28a using the wing nut 47 that can be tightened with a bare hand without using a screwdriver or other tightening tools. ing.

<< Configuration of Waste Gas Channel Member According to Third Embodiment >>
FIG. 17 is a longitudinal side view showing a waste gas flow path member according to the third embodiment.
In addition, the waste gas flow path member 28-2 of this embodiment is configured to include a tongue-like waste gas collision portion 48 as shown in FIG. Since the other components are basically the same as the above-described waste gas flow path member 28, the same reference numerals are given to the same components, and redundant description is omitted.
That is, as shown in FIG. 17, the waste gas flow path member 28-2 includes a waste gas collision portion 48 formed in a tongue shape inside the curved wall surface portion 28b.

  The waste gas collision part 48 has a substantially L-shaped cross-sectional view, and a large number of frame members 49 formed in a length extending between both side wall parts 28c of the waste gas flow path member 28-2 are shown in FIG. Thus, by attaching along the inner side surface of the curved wall surface portion 28b by spot welding or the like so as to be orthogonal to the flow direction of the waste gas, it protrudes from the curved wall surface portion 28b in a tongue-like shape, and in the height direction. Are provided in multiple stages with appropriate intervals.

As described above, the waste gas flow path member 28-2 has the waste gas protrusion 48 for separating and capturing the oil and fat contained in the waste gas on the inner surface when the waste gas collides (contacts). By being provided along, it is possible to improve the capture efficiency of oil and fat in the waste gas.
Thereby, it is possible to prevent the oil and fat contained in the waste gas from flowing (outflowing) from the fan casing 18 to the exhaust duct 3 side.

<< Configuration of Waste Gas Channel Member According to Fourth Embodiment >>
FIG. 18 is a longitudinal side view and a front view showing a waste gas flow path member according to the fourth embodiment.
In addition, the waste gas flow path member 28-3 of this embodiment is configured to include a convex waste gas collision portion 50. Since the other components are basically the same as the above-described waste gas flow path member 28, the same reference numerals are given to the same components, and redundant description is omitted.
That is, as shown in FIG. 18A, the waste gas flow path member 28-3 includes a convex waste gas collision portion 50 inside the curved wall surface portion 28b and the both side wall surface portions 28c.

The waste gas collision part 50 is formed by bending (drawing) processing using a press or the like. The waste gas collision unit 50 intersects the flow direction of waste gas flowing from the lower end port 29 (communication port 7) of the waste gas flow path member 28-3 toward the trumpet port 31 (suction port 21). Although formed, the convex form of the waste gas flow path member 28-3 with respect to the curved wall surface portion 18b is, as shown in FIG. 18 (b), a convex one end side in the center in the width direction of the curved wall surface portion 18b. Are alternately arranged in the height direction, and are provided in the height direction in an array (substantially C-shaped in rear view) inclined downward toward the convex other end side located on the both side wall surface 28c side. Yes.
Thereby, the oil and fat components separated and captured from the waste gas by the collision (contact) with each waste gas collision unit 50 and attached to each waste gas collision unit 50 are along the downward slope of each waste gas collision unit 50. It flows down, flows out (drops) from the lower end port 29 of the waste gas flow path member 28-3 onto the rectifying plate 8, and is recovered from the recovery window 25 to the oil receiver 26.

  Moreover, in the convex form of the waste gas collision part 50 with respect to the both-side wall surface part 28c of the waste gas flow path member 28-3, it prepares in the height direction with the width (length) spanning the vertical wall surface part 18a and the curved wall surface part 18b. It has been.

  Thus, according to the waste gas flow path member 28-3 provided with the waste gas collision portion 50 in the height direction, as described above, In addition to being able to improve the oil and fat capture efficiency and prevent the oil and fat from flowing (flowing out) from the fan casing 18 to the exhaust duct 3 side, it should be manufactured with high productivity by bending with a press or the like. Can do.

In addition, although illustration is abbreviate | omitted, as a convex form of the waste gas collision part 50 with respect to the curved wall surface part 18b of the waste gas flow path member 28-3, a convex one end side is set in the width direction center part of the curved wall surface part 18b. It can be provided in a substantially mountain shape (substantially U-shape) in the rear view provided continuously.
Further, a convex-concave strip plate having a waste gas collision portion 48 formed in a convex shape is separately manufactured, and this convex-concave strip plate is formed in the vertical wall surface portion 28a and the curved wall surface portion 28b of the waste gas flow path member 28-3. The waste gas collision part 50 can be provided in a convex shape on the inner side surface of the waste gas flow path member 28-3 by, for example, laminating the inner side of each side surface.
Moreover, the waste gas collision part 48 can be changed from a convex form to a concave form. In this case, the waste gas collides (contacts) with the dent opening edge of the waste gas collision portion. Thereby, fats and oils are separated and captured from waste gas.

<< Configuration of Waste Gas Channel Member According to Fifth Embodiment >>
FIG. 19 is an exploded perspective view showing the waste gas flow path member according to the fifth embodiment, and FIG. 20 is a longitudinal side view showing the assembled state.
As shown in FIGS. 19 and 20, the waste gas flow path member 28-4 of this embodiment has a waste gas by a combination of an A member 51 and a B member 52 that are divided into two in the front-rear and longitudinal directions in a side view. The flow path member 28-4 is formed. Since the other components are basically the same as the above-described waste gas flow path member 28, the same reference numerals are given to the same components, and redundant description is omitted.

As shown in FIGS. 19 and 20, the A member 51 includes a curved wall surface portion 28 b and both side wall surface portions 28 c. The A member 51 includes flanges 30 and 30a connected to the curved wall surface portion 28b and the side wall surface portions 28 in a substantially U shape in plan view, and the fixing piece portion 33 and the fixing hole are provided on the flanges 30 on both short sides. 32a is provided.
In addition, connecting hole grooves 53 are provided at two locations on the left and right sides of the curved upper surface portion of the curved wall surface portion 28b, and connecting convex portions 54 are provided below the both side wall surface portions 28c.

As shown in FIGS. 19 and 20, the B member 52 is connected to the vertical wall surface portion 28 a, the curved wall surface portion 28 b of the A member 51, and the both side wall surface portions 28 c by overlapping each other by external fitting. 52a and both side edge portions 52b are formed.
As shown in FIG. 19, the B member 52 is provided with a flange 30 on the vertical wall surface portion 28a, and is inserted and locked into the connecting hole groove 53 of the A member 51 at the left and right portions of the upper edge portion 52a. Each of the connecting claw sides 55 is provided.
Moreover, the B member 52 is provided with the connection hole part 56 for fitting and connecting with the connection convex part 54 of the A member 51 below the both-sides edge part 52b, respectively.

As described above, according to the waste gas flow path member 28-4 configured to be separable from the A member 51 and the B member 52 divided into two parts, as shown by a two-dot chain line in FIG. The connecting claw side portion 55 provided on the upper side edge portion 52a of the B member 52 is inserted into the connecting hole groove 53 provided on the curved wall surface portion 28b.
Next, by moving the B member 52 so as to rotate in the direction of the arrow X from this state, the upper edge portion 52a and both side edge portions 52b of the B member 52 are curved wall portions 28b and both side wall surfaces of the A member 51. At the same time, the connecting hole portions 56 provided on both side edge portions 52a of the B member 52 are connected to the outside of the portion 28c so as to overlap with each other. 54 to be connected.
Thereby, as shown in FIG. 19, the waste gas flow path member 28-4 comprised so that isolation | separation from the A member 51 and the B member 52 is possible is assembled.

And when removing dirt, such as oil and fat adhering to the inner surface of waste gas channel member 28-4 constituted in this way, by moving B member 52 in the direction opposite to the above-mentioned procedure, , A member 51 can be separated.
Thereby, the washing | cleaning property for removing dirts, such as fats and oils, can be improved significantly. In addition, the dirt can be removed cleanly to every corner.

The specific configuration of the embodiment of the present invention is not limited to the above-described embodiment, and there are design changes and the like without departing from the gist of the present invention described in claims 1 to 6. Are also included in the present invention.
For example, the range hood is not limited to the above-described wall-mounted type, and is installed by being attached to the kitchen wall so as to be positioned almost directly above the cooking device incorporated in the open counter between the kitchen and the dining room. A wall-mounted type, or a ceiling-mounted type (so-called island) that is mounted on the ceiling and installed almost directly above the cooking device can be used.

Further, the flange 30 of the lower end port 29 of the waste gas flow path member 28 is detachably fixed to the opening edge of the communication port 7 of the hood portion 1 with the waste gas flow path member 28 inserted into the communication port 7. As the locking means 32, the latch metal fittings 39 formed in a substantially Z shape as shown in FIG. 13 are attached to the opening edge portions on both sides of the short side of the connection port 7, respectively.
And in the state which inserted the support piece part 41 in the flange 30 part of the short side both sides of the lower end port 29, or the waste gas flow path member 28 in the connection port 7, it was made to respond | correspond to the four metal fittings 39, respectively. In the position, each is provided with a substantially U-shaped recessed portion in plan view through which the locking metal fitting 39 passes.
Thereby, the waste gas flow path member 28 can be detachably fixed to the communication port 7 by moving the waste gas flow path member 28 toward the fan casing 18 side.

A, A-1, A-2, A-3, A-4, A-5 Range hood 1 Hood 1a Top plate 2 Exhaust device 2a, 28a Storage box 3 Exhaust duct 4 Duct cover 7 Contact port 18 Fan casing 21 Suction port 28, 28-1, 28-2, 28-3, 28-4 Gas flow path member 31 Trumpet port 31-1 Bell mouth (trumpet port)
32 Locking means 32a Fixing hole 32b Fixing screw 48, 50 Waste gas collision part M Capture space

Claims (6)

A hood with a capture space;
An exhaust device installed on the top plate of the hood part,
Waste gas captured in the capture space is sucked into the fan casing from a suction port opened in the fan casing of the exhaust device through a communication port opened in the top plate, and is connected to the fan casing. A range hood configured to exhaust outdoors through an exhaust duct,
A waste gas flow path member for guiding the waste gas from the communication port to the suction port;
The waste gas flow path member is detachably held from the capture space side to the communication port, and is formed in a substantially cylindrical shape that connects the communication port and the suction port. hood. The waste gas flow path member has a flange having a flange that abuts along the opening edge of the communication port when inserted and held in the communication port, and a trumpet port connected to the suction port. With
The range hood according to claim 1, wherein the trumpet port is provided at a position where the suction port is aligned with the suction port when the waste gas passage member is inserted into the communication port. A locking means for detachably fixing the flange of the waste gas flow path member to the opening edge of the communication port;
The locking means is configured to fix the flange to the opening edge by inserting the waste gas flow path member into the communication port and moving it toward the fan casing side. The cooker hood according to claim 1 or 2, characterized by the above.   The waste gas flow path member includes a waste gas collision portion on an inner surface for colliding the waste gas and capturing oil and fat contained in the waste gas. The range hood according to any one of claims 1 to 3.   The waste gas collision portion is provided in a tongue shape on the inner side surface of the waste gas flow path member so as to cross the flow direction of the waste gas flowing from the communication port toward the suction port. The range hood according to claim 4, wherein:   The waste gas collision part is formed in an uneven shape on the inner side surface of the waste gas flow path member so as to cross the flow direction of the waste gas flowing from the communication port toward the suction port. The range hood according to claim 4.

Images