JP2009036423A - 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 removing grease content, and having the waste gas flow passage member capable of improving capture efficiency in the grease content. <P>SOLUTION: This range hood has a hood part 1 having a capture space M and a blower unit 2 arranged on this hood part 1. The blower unit 2 secures an inflow space N on the one half part side communicating with a connecting port 7 in an exhaust box 2a installed on a top plate 1a of the hood part 1, and an exhaust system 2b is arranged in the other half part side in a longitudinally installed state. The connecting port 7 and a suction port 21 are directly coupled and connected by the waste gas flow passage member 28 by insertably-extractably arranging the waste gas flow passage member 28 in the inflow space N from the connecting pot 7 side (the lower side) for guiding waste gas to the suction port 21 of the exhaust system 2b from the connecting port 7. <P>COPYRIGHT: (C)2009,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. Due to dimensional constraints, the waste gas inflow space secured on the front half side excluding the rear half side of the exhaust box in which the exhaust system is installed is deep space toward the ceiling, The front-rear direction from the front plate of the exhaust box located at the back to the side plate of the fan casing in which the suction port is opened 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, maintenance problems such as a heavy burden on the user remained.

  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 duct cover and the front of the cabinet that are installed from the top plate of the hood to the ceiling in order to hide the exhaust box, There will be a step between them, and the appearance will be impaired. For this purpose, 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.

Accordingly, the present invention has been developed to solve the above-described problems, and waste gas flowing into the exhaust box of the blower unit from the communication port of the hood portion is installed vertically in the exhaust box. This is a range hood that is configured to exhaust to the outside through the exhaust duct from the suction port of the exhaust system that has been used, and improves daily maintenance by dramatically improving the cleaning properties such as removing oils and fats An object of the present invention is to provide a range hood provided with a waste gas flow path member that can be used.
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, the present invention includes a hood portion having a capture space opened downward, and a blower unit installed on the top plate of the hood portion. The top plate is provided with a communication port for communicating with the blower unit, and the blower unit is formed in a substantially square shape in a cross-sectional view, and the half plate side of the top plate is communicated with the communication port. An exhaust box mounted on the exhaust box, and an exhaust device that is vertically installed and located on the other half side excluding the one half side communicating with the communication port in the exhaust box,
An exhaust duct that is connected to the fan casing from a suction port that is opened in the fan casing of the exhaust device, for exhaust gas flowing into the space secured on the front half side of the exhaust box from the communication port A range hood configured to exhaust to the outside through,
A waste gas channel member for guiding the waste gas from the communication port to the suction port is provided in the space, and the waste gas channel member can be freely inserted into and removed from the communication port side into the space. By holding, it is formed so that the communication port and the suction port communicate with each other.
Here, the waste gas flow path member has a flange having a flange that abuts along the opening edge of the communication port when inserted into the space of the exhaust box from the communication port side. And a trumpet port connected to the suction port so as to face the inside of the fan casing. The trumpet port connects the waste gas passage member from the communication port side to the exhaust box. When it is inserted into the space and installed, it is preferably 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 connects the waste gas flow path member from the communication port side to the communication port side. After being inserted into the space of the exhaust box and installed in the space, the waste gas flow path member is fixed to the connection port in a freely detachable manner by moving toward the fan casing side. Is suitable.

According to such a configuration, the waste gas for connecting the communication port opened in the top plate of the hood portion and the suction port of the fan casing of the exhaust device installed in the rear half of the exhaust box. The flow path member can be removably installed in the space secured on the front half side of the exhaust box.
In other words, the depth dimension is restricted due to the balance with the cabinet of the system kitchen, etc., and the width of the frontage is narrow and the depth is toward the ceiling because the exhaust system is installed vertically in the rear half. The waste gas flow path member is inserted into the space of the downward opening secured on the front half side of the exhaust box from the communication port side (lower side) of the hood part, so that the communication port of the hood part is provided. The exhaust box space can be provided with an exhaust flow path for waste gas that communicates directly with the suction port of the fan casing.
Thereby, it is possible to prevent the oil and fat contained in the waste gas from adhering to the inner surface of the exhaust box in the space of the exhaust box having a narrow frontage width and deep toward the ceiling. In addition, the oil and fat adhering to the inner surface of the flow path of the waste gas flow path member can be removed by removing the waste gas flow path member and washing it in a sink or the like.

In addition, the trumpet opening opened in the waste gas flow path member to connect to the suction port of the fan casing is inserted into the space from the communication port side of the hood portion when the waste gas flow path member is installed in the space. , It is aligned with the opening shaft core of the suction port.
Thereby, it is possible to establish a communication state in which the communication port and the suction port are directly connected by a simple operation in which the waste gas flow path member is inserted into the space of the exhaust box from the communication port of the hood part and installed.
Moreover, the waste gas flow path member is inserted into the space of the exhaust box, and then moved in a direction to connect the trumpet port to the suction port of the fan casing, so that it can be freely attached to and detached from the communication port of the hood part. It can be fixed.

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 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. It is suitable that it is done.
In addition, the waste gas collision part is formed in an uneven shape 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 becomes suitable.

  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.

  In the present invention, the waste gas flow path member is provided with a grease filter for capturing oil and fat contained in the waste gas, and the waste gas flow path member And an oil receiver for recovering the oil and fat.

  According to such a configuration, the grease filter and the oil receiver can be removed together by pulling out and removing the waste gas flow path member from the space of the exhaust box. Thereby, when the waste gas passage member is washed with a sink or the like, the grease filter and the oil receiver can be washed together.

The range hood of the present invention is configured as described above, and the waste gas collected in the capture space of the hood part is installed vertically in the communication port of the hood part and in the exhaust box. The exhaust port is inserted into the exhaust box so as to be directly connected to the suction port of the exhaust device, and is introduced into the exhaust casing through the exhaust gas passage member. Can be exhausted.
As a result, while taking an unreasonable posture, there is no need to perform a cleaning action such as removing oils and fats in a groping state. Can be washed in a circle. Therefore, it is possible to expect the improvement of daily maintenance by greatly improving the cleaning properties such as removing oil and fat.

  Moreover, the waste gas flow path member is provided with a waste gas collision part formed in a tongue-like 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 recovering 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 is not only formed in the exhaust box, but also included in the waste gas so as to form a waste gas exhaust flow path that communicates so that the communication port of the hood portion and the suction port of the exhaust device are directly connected. It is effectively used as a capture flow path for capturing the oil and fat content, and improves the capture efficiency of the oil and fat content.

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 oily smoke, water vapor, and hot air 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 a blower unit 2 on a flat (thin) hood portion 1.

Further, as shown in FIG. 1, the range hood A is an exhaust formed so as to cover the blower unit 2 and the exhaust duct 3 from the top plate 1a of the hood 1 to the ceiling K-2 of the kitchen. A cover 4 is provided.
The exhaust cover 4 is composed of two members formed in a substantially U-shaped square tube shape in a plan view, and is a height from the height position where the hood portion 1 is installed to the height of the ceiling K-2. It is formed so that the length (height) of the cover can be adjusted according to the length (length).

≪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.
The operation switch unit 5 switches on / off the operation of an exhaust device 2b, which will be described later, and the illumination 6 such as a light bulb provided on the rear side (kitchen wall surface K-1 side) of the hood unit 1. It is configured with touch or push type switches (not shown) for switching lighting on / off.

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 formed on the rear side of the central portion of the top plate 1a so as to communicate the capture space M of the hood portion 1 with the inside of the exhaust box 2a described later of the blower unit 2.
Specifically, the exhaust box 2a is formed in a substantially horizontally long rectangular shape in plan view that is long in the left-right direction of the hood 1 corresponding to the downward opening shape of the inflow space N 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 sucked into the trapping space M from the suction gap S along the flow straightening plate 3.

<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 the 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 pivotable and can be attached and detached as appropriate. The front side is detachably supported by the left and right engaging / disengaging members 10 provided in the capture space M in FIG.
Thereby, when removing the waste gas flow path member 28, which will be described later, from the inflow space N of the exhaust box 1a for cleaning, or when wiping off the oil and fat adhering to the back surface side (inside) of the current plate 8, 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).

≪Blower unit configuration≫
As shown in FIG. 1, the blower unit 2 is located vertically on the exhaust box 2a and on the rear half side except the front half side communicating with the communication port 7 of the hood part 1 in the exhaust box 2a. And an exhaust device 2b.

≪Exhaust box configuration≫
As shown in FIGS. 1 and 2, the exhaust box 2 a communicates with the communication port 7 of the hood portion 1 at the front half side, which is one half side, and at the rear half side, which is the other half side, the exhaust device 2 b. Is formed in a substantially quadrangular shape in a cross-sectional view with its lower surface opened so that it can be installed vertically. The exhaust box 2a is attached to the top plate 1a by screws or the like.

≪Exhaust system configuration≫
As shown in FIG. 1, the exhaust device 2 b includes a fan casing 18, and an exhaust fan (such as a centrifugal fan or a multiblade fan) 20 that is pivotally supported by a fan motor 19 and accommodated coaxially in the conofan casing 18. And has a configuration.

≪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.
The fan casing 18 formed in this way has the upper end port 23 connected to the exhaust duct 3 via the connection cylinder 22 attached to the upper surface plate 24 of the exhaust box 2a by screws or the like, so that the hood portion 1 The exhaust port 2a is located on the rear half side excluding the front half part communicating with the communication port 7, and is accommodated vertically.
As a result, as shown in FIG. 1, an inflow space N is secured on the front half side of the exhaust box 2a, and the exhaust device 2b faces the exhaust box 2a with the suction port 21 facing the inflow space N side. It is installed inside.

1 and 2, the fan casing 18 includes a drain pipe 27 at the lowest circumferential portion of the body portion 18a so as to penetrate the top plate 1a of the hood portion 1 and face the capture space M. ing.
As a result, the oil and fat components separated and captured from the waste gas by the collision and contact of the waste gas with the inner surface of the fan casing 18 and each blade of the exhaust fan 20 are dripped onto the current plate 8 from the drain pipe 27 ( The oil is recovered from the recovery window 25 to the oil receiver 26.

  And the range hood A of this embodiment has the connecting port 7 and fan of the hood part 1 in the inflow space N of the exhaust box 2a into which the waste gas collected in the capture space M of the hood part 1 is sucked. A gas flow path member 28 for connecting the suction port 21 of the casing 18 so as to be directly connected is removably provided.

<< Configuration of 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 gas flow path member 28 has a vertical side view with a substantially rectangular shape having a lower end 29 and corresponding to the height (depth) of the inflow space N of the exhaust box 2 a. The cross section is formed in a substantially horizontally long rectangular shape corresponding to the opening shape of the communication port 7 that is long in the left and right side directions of the hood portion 1.
As shown in FIGS. 1 and 5, the gas flow path member 28 has a vertical wall surface portion 28a that comes into close contact with the front side plate 18b of the fan casing 18 when inserted into the inflow space M, and The curved wall surface portion 28b, the vertical wall surface portion 28a, and the open side edges of the curved wall surface portion 2bb that are gradually curved in the direction toward the suction port 21 (exhaust device 2b side) are connected by bending or welding, respectively. Both side wall portions 28c for installation.
The lower side of the vertical wall surface portion 28a is formed so as to expand with a downward slope toward one edge of the opening periphery of the lower end opening 29, as shown in FIGS. Thereby, the opening of the lower end port 29 is widened to improve the flow of waste gas from the capture space M into the gas flow path member 28.

  The gas flow path member 28 is inserted into the inflow space N from the communication port 7 side (capture space M side) and is inserted into the inflow space N, and the flange 30 is brought into close contact with the opening edge of the communication port 7. Is provided at the peripheral edge of the opening of the lower end port 29, and when the flange 30 comes into contact with the opening edge of the connection port 7, the suction port 21 is aligned with the opening shaft core of the suction port 21 of the fan casing 18. A trumpet port 31 for connection to the vertical wall surface 28a is provided.

As shown in FIG. 5, the flange 30 is formed to have the same width in the vertical wall surface portion 28a and the both side wall surface portions 28c at the opening periphery of the lower end port 29, and is formed to have a wider width in the curved wall surface portion 28b.
As a result, after the gas flow path member 28 is inserted into the inflow space N of the exhaust box 2a and installed inside, the trumpet port 31 provided in the vertical wall surface portion 28a is formed in the fan casing 18 as shown in FIG. After the movement of the gas flow path member 28 toward the fan casing 18 when it is connected to the suction port 21 in a state of facing the inside, the opening periphery of the lower end port 29 of the gas flow path member 28 and the communication port 7 The gap formed between the peripheral edge of the opening is reliably closed by the flange 30.
In other words, the movement of the gas flow path member 28 causes the gap between the opening edge of the lower end port 29 of the gas flow path member 28 and the opening edge of the communication port 7 to be wider than the gap formed between the other three edges. The gap can be reliably closed by the flange 30a formed wider (see FIGS. 1 and 2).

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

  In this embodiment, the locking means 32 for fixing the gas flow path member 28 formed in this way to the inflow communication port 7 of the exhaust box is detachably attached to the flange of the gas flow path member 28. 30 and 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. The fixing screw 32b is provided on each side edge of the short side of the communication port 7 in a positional relationship opposite 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.

Next, the operation of the range hood 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 inflow space of the exhaust box and removed is looked up 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.
Thereby, the waste gas from the capture space M does not flow into the exhaust box 2a including the inflow space N of the exhaust box 2a. Therefore, the inside of the exhaust box 2a including the inflow space N is not soiled due to adhesion of oil and fat contained in the waste gas.

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 332b (see FIG. By moving the waste gas passage member 28 in the left direction in FIG. 1 (from the state (b) in FIG. 2 to the state (a)), the waste gas passage member 28 is moved as shown in FIG. It can be pulled out from the inflow space of the exhaust box.
As a result, dirt such as oil and fat adhering to the inner surface of the waste gas flow path member 28 can be removed cleanly by round washing in a sink or the like.

  When the waste gas passage member 28 is inserted into the inflow space N of the exhaust box 2a after being removed of dirt such as oil and fat, the procedure is reversed from the above-described removal procedure. The waste gas flow path member 28 can be installed in the inflow space N in a state where it is fixed to both edges of the short side of the communication port 7 by the stop means 32. That is, the waste gas flow path member 28 can be inserted into the inflow space N and installed in the state where the communication port 7 and the suction port 31 of the fan casing 18 are directly connected (states of FIGS. 1 and 2).

FIGS. 8-13 shows other embodiment of the range hood of this invention provided with the waste gas flow-path member based on 1st Embodiment, respectively.
FIG. 8 is a vertical side view of the range hood according to the present invention provided with a grease filter at the lower end of the waste gas flow path member, and FIG. 9 is a perspective view showing the waste gas flow path member and the grease filter.
In addition, as shown in FIG. 8, the range hood A-1 of such embodiment has the grease filter 38 for separating and capturing the oil and fat contained in the waste gas at the lower end of the waste gas flow path member 28. 29. The components other than the grease filter 38 are basically the same as those in the embodiment shown in FIG. 1, and the same reference numerals are assigned to the same components. A duplicate description will be omitted.

,
That is, as shown in FIGS. 8 and 9, the range hood A-1 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 retaining metal fittings 39 are formed in a substantially Z shape, and as shown in FIG. 9, spot welding or the like is performed on the opening edges on both sides of the short side of the lower end port 29 of the waste gas passage member 28, respectively. It is attached.

As described above, according to the range hood A-1 having 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. 10 is a longitudinal side view of the range hood according to the present invention provided with an oil receiver along the opening periphery of the lower end of the waste gas flow path member. FIG. 11 shows the waste gas flow path member and the oil receiver. It is a perspective view shown.
In addition, as shown in FIG. 10, the range hood A-2 of such embodiment collects the oil and fat separated and captured from the waste gas along the opening periphery of the lower end port 29 of the waste gas flow path member 28. The components other than the oil receiver 40 are basically the same as the embodiment shown in FIG. 1 and FIG. A duplicate description is omitted by giving the same reference numerals to the components.

,
That is, the range hood A-2 includes an oil receiver 40 along the opening periphery of the lower end port 29 of the waste gas passage member 28, as shown in FIGS.

As shown in FIGS. 10 and 11, 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-2 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. 12 is a longitudinal 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. 13 shows the waste gas flow path member and the container. FIG.
In addition, in the range hood A-3 of such an embodiment, as shown in FIG. 12, the oil and fat contained in the waste gas is separated and captured at the lower end 29 of the waste gas flow path member 28, and The constituent elements other than the container 42 formed to collect the captured oil and fat at the lower end 29 of the waste gas flow path member 28 are basically the same as those in the above-described embodiment. A duplicate description is omitted by giving the same reference numerals to the components.

,
That is, as shown in FIGS. 12 and 13, the range hood A-3 is detachably supported with respect to the latch fittings 39 provided at the opening edges of the lower end port 29 of the waste gas flow path member 28, respectively. The container 42 is provided.

As shown in FIGS. 12 and 13, the container 42 has an opening area of the lower end port 29 of the waste gas passage member 28 using a thin metal plate made of an aluminum plate or a stainless steel plate having excellent corrosion resistance. 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. Accordingly, as shown in FIG. 13B, the flange 43 can be supported to be freely inserted into and removed from the above-described latch fitting 39, and the container 42 can be provided at the lower end 29 of the waste gas passage member 28. I am doing so.

Thus, according to the range hood A-3 provided with the container 42 having the grease filter 42a and the oil reservoir 42b, separation and capture of the oil and fat contained in the waste gas, and 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. 14 is a longitudinal side view showing a gas flow path member according to the second embodiment.
As shown in FIG. 14, the waste gas flow path member 28-1 of such an embodiment is a component other than a trumpet mouth formed separately, that is, a so-called bell mouth 31-1 provided in the vertical wall surface portion 28a. In FIG. 5, the same components as those of the above-described waste gas flow path member 28 are basically the same, and the same components are denoted by the same reference numerals, and redundant description is omitted.
That is, the waste gas passage 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. Yes.

As shown in FIG. 14, the waste gas flow path member 28-1 is provided with an opening window 44 in the vertical wall surface portion 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. 15 is a longitudinal side view showing a waste gas flow path member according to the third embodiment.
In addition, in the waste gas flow path member 28-2 of such an embodiment, as shown in FIG. 15, the above-described waste gas flow path member is provided in the constituent elements other than the tongue-shaped waste gas collision portion 48. Since this is basically the same as that of No. 28, the same reference numerals are given to the same constituent elements, and redundant description will be omitted.
That is, as shown in FIG. 15, the waste gas flow path member 28-1 includes a waste gas collision portion 48 formed in a tongue shape inside the curved wall surface portion 28b.

  The waste gas collision portion 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 portions 28c of the waste gas flow path member 28-1 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.

In this way, the waste gas flow path member 28-1 has a waste gas protrusion 48 for separating and capturing oil and fat contained in the waste gas along the inner surface when the waste gas collides or comes into contact. By providing it together, the capture efficiency of the fats and oils in the waste gas inside the exhaust box 2a of the blower unit 2 can be improved.
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. 16 is a longitudinal side view and a front view showing a gas flow path member according to the fourth embodiment.
In this embodiment, the constituent elements other than those provided with the uneven waste gas collision portion are basically the same as the above-described waste gas flow path member 28, and therefore the same reference numerals are given to the same constituent elements. Therefore, duplicate explanation is omitted.
That is, as shown in FIG. 16A, the waste gas flow path member 28-3 includes a waste gas collision portion 50 that is continuously convex and concave inside the vertical wall surface portion 28a and the curved wall surface portion 28b. ing.

  As shown in FIG. 16 (b), the waste gas collision part 50 is bent (drawn) by a press or the like at a width (length) extending between both side wall parts 28c of the waste gas flow path member 28-3. The vertical wall surface portion 18a and the curved wall surface portion 18b are continuously provided in an uneven shape in the height direction, and are integrally provided.

  As described above, according to the waste gas flow path member 28-3 including the waste gas collision portion 50 that is continuously uneven in the height direction, as described above, inside the exhaust box 2a of the blower unit 2. In addition to improving the capture efficiency of oil and fat in the waste gas and suppressing the oil and fat from flowing (flowing out) from the fan casing 18 to the exhaust duct 3, it is produced by bending with a press or the like. Can be manufactured with good quality.

  Although not shown in the drawings, a rugged strip plate having a waste gas collision portion 48 formed continuously in a rugged shape is separately manufactured, and this rugged strip plate is used as a waste gas flow path member 28-3. The waste gas impingement portion 48 formed in an uneven shape can be provided on the inner side surface of the waste gas flow path member 28-3 by laminating the inner wall surface of the vertical wall surface portion 28a and the curved wall surface portion 28b. .

<< Configuration of Waste Gas Channel Member According to Fifth Embodiment >>
FIG. 17 is an exploded perspective view showing the gas flow path member according to the fifth embodiment, and FIG. 18 is a vertical side view showing the assembled state.
In this embodiment, as shown in FIGS. 17 and 18, the waste gas flow path member 28-4 is formed by a combination of the A member 51 and the B member 52 that are divided into two in the front-rear and longitudinal directions in a side view. Since the constituent elements other than those described above are basically the same as the above-described waste gas flow path member 28, the same reference numerals are assigned to the same constituent elements, and redundant description is omitted.

As shown in FIGS. 17 and 18, 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. 17 and 18, the B member 52 is an upper side edge portion for overlapping and connecting 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 external fitting. 52a and both side edge portions 52b are formed.
As shown in FIG. 17, the B member 52 includes 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. 18, the waste gas flow path member 28-4 configured to be separable from the A member 51 and the B member 52 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 8. 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, after the waste gas passage member 28 is inserted into the inflow space N of the exhaust box 2 a and installed, the flange 30 of the lower end port 29 of the waste gas passage member 28 is connected to the opening edge of the communication port 7 of the hood portion 1. As a latching means 32 for fixing to and disengageable from each other, a latch metal 39 formed in a substantially Z shape as shown in FIG. Install.
On the other hand, in the state where the support piece portion 41 or the waste gas flow path member 28 is inserted into the inflow space N of the exhaust box 2a in the flange 30 portions on both sides of the short side of the lower end port 29, the four locking metal fittings are provided. 39 is provided with a substantially U-shaped recessed portion in a plan view through which the locking metal fitting 39 is passed.
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.

1 is a longitudinal side view showing a range hood of the present invention provided with a waste gas flow path member according to a first embodiment. FIG. 2 is a longitudinal sectional view taken along line II-II in FIG. 1, wherein (a) shows a state when a waste gas flow path member is inserted into an exhaust box and then pulled out and taken out; (b) is a waste gas flow The state which fixed the road member to the opening periphery 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 inflow space of the exhaust box was looked up from diagonally downward. 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.

Explanation of symbols

A, A-1, A-2, A-3 Range hood 1 Hood 1a Top plate 2 Blower unit 2a Exhaust box 2b Exhaust device 3 Exhaust duct 4 Exhaust 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 38 Oil receiver 40 Grease filter 48, 50 Waste gas collision part M Capture space N Inflow space

Claims (8)

A hood part having a capture space opened downward, and a blower unit installed on the top plate of the hood part,
The hood portion includes a communication port for communicating with the blower unit in the top plate,
The blower unit is formed in a substantially quadrangular shape in a cross-sectional view, and an exhaust box attached on the top plate so as to communicate one half side with the communication port;
An exhaust device that is located vertically on the other half side excluding the one half side communicating with the communication port in the exhaust box,
An exhaust duct that is connected to the fan casing from a suction port that is opened in the fan casing of the exhaust device, for exhaust gas flowing into the space secured on the front half side of the exhaust box from the communication port A range hood configured to exhaust to the outside through,
A waste gas flow path member for guiding the waste gas from the communication port to the suction port in the space;
The waste hood member is formed so as to connect the communication port and the suction port by holding the waste gas flow path member in the space so as to be freely inserted and removed from the communication port side. The waste gas flow path member is inserted into the space of the exhaust box from the communication port side, and a lower end port having a flange to be contacted along the opening edge of the communication port, A trumpet port connected to the suction port so as to face the inside of the fan casing,
The trumpet port is integrally provided at a position where the exhaust gas channel member is aligned with the suction port when the waste gas channel member is inserted into the space of the exhaust box from the communication port side. The range hood according to claim 1, wherein: A locking means is provided between the flange of the waste gas flow path member and the opening edge of the communication port,
The locking means inserts the waste gas flow path member into the space of the exhaust box from the communication port side and moves it toward the fan casing side, thereby moving the waste gas flow path member to the fan casing side. The range hood according to claim 1 or 2, wherein a flange of the waste gas flow path member is detachably fixed to the opening edge portion.   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 part is formed in a tongue-like 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.   The said waste gas channel member is equipped with the grease filter for capturing the fats and oils contained in the said waste gas, The any one of Claims 1-6 characterized by the above-mentioned. Range food.   The range hood according to any one of claims 1 to 7, wherein the waste gas passage member includes an oil receiver for collecting the oil and fat.

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