Smoke collecting device

Abstract

To provide a smoke collecting device which can effectively send steam and soot generated in a cooking instrument to a ventilation device without causing an excessive load on the ventilation device.SOLUTION: A smoke collection device includes: a ventilation base part 5 which is provided so as to cover an intake port of a ventilation device 2 and provided with a vent hole 10; a smoke collection hood 6 which is provided so as to cover the upper side of a cooking tool 4 and provided with a smoke collection vent hole 13; a duct 7 connecting the vent hole 10 with the smoke collection vent hole 13; and a hanging member 8 which holds the duct 7 in a state that the duct 7 is hung from a ceiling surface 19. A cross section area of a ventilation area when the duct 7 is cut on a surface perpendicular to an extension direction of the duct 7 is smaller at the side of a connection part connected with the smoke collection vent hole 13 than at the side of a connection part connected with the vent hole 10.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a smoke collector that sends steam and oily smoke generated by cooking utensils to a ventilation system. [Background technology]

[0002] In general households, when enjoying grilled meat, people often use portable cooking equipment (for example, a gas bottle type stove) installed on the dining table, rather than a built-in stove near the ventilation system (exhaust fan). In this case, it is difficult for the distant ventilation system to suck in the steam and oily smoke generated by the cooking equipment, and the steam and oily smoke can spread throughout the room, causing problems such as lingering odors.

[0003] Therefore, for example, the kitchen equipment described in Patent Document 1 below employs a configuration in which a fixed range hood 6 provided on an exhaust fan 8 (ventilation device) and a movable range hood 2 are connected by an expansion duct 4, and the movable range hood 2 is moved to directly above a dining table 5. With this configuration, steam and oily smoke generated by cooking utensils provided on the dining table 5 can be sucked in by the movable range hood 2 and then exhausted from the exhaust fan 8 through the expansion duct 4, thereby preventing the steam and oily smoke from diffusing into the room. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 2-89237 Summary of the Invention [Problem to be solved by the invention]

[0005] In the configuration of Patent Document 1, suction is performed through the expandable duct 4, the cross-sectional area of ​​the ventilation region of which is relatively smaller than the intake port of the fixed range hood 6, which tends to place a large load on the motor of the fixed range hood 6, raising concerns about malfunctions and other problems. On the other hand, if the cross-sectional area of ​​the expandable duct 4 is increased to reduce the load on the fixed range hood 6, the suction speed on the movable range hood 2 side will decrease, and there is a risk that steam, oily smoke, etc. cannot be sufficiently sent to the fixed range hood 6 side.

[0006] The problem that the present invention aims to solve is to provide a smoke collection device that can effectively send steam, oily smoke, etc. generated by cooking utensils to a ventilation system without placing an excessive load on the ventilation system. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention provides A ventilation base portion provided to cover an intake port of the ventilation device and having a ventilation vent formed therein; A smoke collection hood provided to cover the upper part of the cooking utensil and having a smoke collection vent formed therein; A duct connecting the ventilation vent and the smoke collection vent; A hanging member that holds the duct in a suspended state from a ceiling surface; The smoke collection device has a cross-sectional area of ​​the ventilation region when the duct is cut along a plane perpendicular to the extension direction thereof, the cross-sectional area being smaller on the side of the connection with the smoke collection vent than on the side of the connection with the ventilation vent.

[0008] In this way, excessive load on the ventilation system caused by intake air from a duct with a relatively large area can be prevented, while the suction speed of the duct with a relatively small area can be increased, making it possible to effectively send steam, oily smoke, etc. generated by cooking utensils to the ventilation system.

[0009] In the above configuration, The cross-sectional area on the side of the connection with the ventilation vent is defined as S outThe cross-sectional area on the side of the connection with the smoke collection vent is S in When the area ratio of the two cross-sectional areas is out / S in It is preferable that the ratio is within the range of 1.2 to 5.0. This can reliably prevent excessive load from being placed on the ventilation device, while more effectively sending steam, oily smoke, etc. generated by cooking utensils to the ventilation device.

[0010] In all of the above configurations: It is preferable that the hanging member has a rail portion fixed to the ceiling surface, a slider movable along the rail portion, a fixing mechanism for fixing the slider at a desired position on the rail portion, and a connecting member for connecting the slider and the duct. In this way, even if the ventilation device and the smoke collection hood are located far apart and a long duct is used, the duct can be prevented from sagging.

[0011] In the configuration in which the hanging member is adopted, It is preferable that the duct has a plurality of linear rail portions, and the plurality of rail portions are fixed to the ceiling surface in a non-parallel state to each other. In this way, it becomes easier to widen the interval between the sliders provided on the respective rail portions, so that the duct can be stably suspended by the suspension member.

[0012] In the configuration having the plurality of rail portions, It is preferable that the plurality of rails extend radially outward from a ring-shaped base in a plan view, and that the base is disposed between the ceiling surface and the lighting fixture to be attached to the ceiling surface. In this way, when fixing the hanging member to the ceiling surface, it is not necessary to form holes in the ceiling surface for screws, and it is possible to prevent deterioration of the appearance. Effect of the Invention

[0013] By configuring the smoke collection device of the present invention as described above, it can effectively send steam, oily smoke, etc. generated by cooking utensils to the ventilation system without placing an excessive load on the ventilation system. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a cross-sectional view showing an embodiment of a smoke collector according to the present invention. [Diagram 2] 1A and 1B are perspective views showing a ventilation base part, in which FIG. 1A is a first example and FIG. [Diagram 3] FIG. 1 is a perspective view showing a smoke collection hood. [Figure 4] FIG. 2A is a perspective view showing a state where a duct is connected to a ventilation base part, and FIG. 2B is a perspective view showing a state where a duct is connected to a smoke collection hood. [Diagram 5] FIG. 11 is a bottom view showing the configuration of the rail portion of the hanging member. [Figure 6] (a) is a bottom view showing the main part of the hanging member, (b) is a cross-sectional view taken along line bb in (a), and (c) is a cross-sectional view taken along line cc in (b). [Figure 7] FIG. 1A is a bottom view showing a main part of a modified example of a hanging member, and FIG. 1B is a cross-sectional view taken along line bb in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The smoke collector 1 according to the present invention will be described with reference to the drawings. As shown in Fig. 1, this smoke collector 1 is used, for example, when a family enjoys grilling meat using a cooking utensil 4 (e.g., a gas bottle type stove) installed on a dining table 3, rather than a stove installed near a ventilation device 2, and has a ventilation base part 5, a smoke collection hood 6, a duct 7, and a hanging member 8 as main components.

[0016] The ventilation base part 5 is a rectangular plate-shaped resin member provided to cover the air intake of the ventilation device 2. As shown in Fig. 2(a), a magnet 9 is provided on the periphery of the ventilation base part 5 for attracting the ventilation base part 5 to the periphery of the air intake. In addition, a ventilation vent 10 for inserting one end of the duct 7 is formed near the center of the ventilation base part 5, and a magnet 11 is also provided on the periphery of the ventilation vent 10.

[0017] As the ventilation device 2 (here, a range hood), a deep type (boot type) was widely used in the past, but in recent years, a slim type with a flat plate-shaped straightening plate in the center of the intake port has been widely adopted. Unlike the deep type (boot type), this slim type is designed to draw in air only from the periphery of the straightening plate. For this reason, as shown in FIG. 2(b), the ventilation base part 5 used in the slim type ventilation device 2 has a rising part 12 formed on the periphery of the rectangular plate-shaped member to ensure an air flow path, and a magnet 9 is provided on this rising part 12. In this way, air can be efficiently drawn in from the periphery of the straightening plate.

[0018] Smoke collection hood 6 is a sheet-like member made of resin having a predetermined rigidity, which is provided to cover the upper part of cooking utensil 4. As shown in FIG. 3, smoke collection hood 6 has smoke collection vent 13 formed near the center thereof for inserting the other end of duct 7. Smoke collection hood 6 has slit 14 formed from smoke collection vent 13 to the periphery of smoke collection hood 6, and magnet 15 is provided on the periphery for closing slit 14 and holding smoke collection hood 6 in an umbrella shape. FIG. 3 shows slit 14 in a slightly open state. The shape and material of smoke collection hood 6 can be appropriately selected as long as it has the predetermined rigidity and heat resistance.

[0019] The duct 7 is a resin member that connects the ventilation vent 10 and the smoke collection vent 13. The duct 7 is configured by sequentially connecting a first duct 7a (outer diameter d1 = 150 mm) and a second duct 7b (outer diameter d2 = 100 mm) having an outer diameter smaller than that of the first duct 7a, and the cross-sectional area of ​​the ventilation region when cut along a plane perpendicular to the extension direction is smaller on the side of the connection with the smoke collection vent 13 than on the side of the connection with the ventilation vent 10.

[0020] In this embodiment, the cross-sectional area (cross-sectional area of ​​the first duct 7a) on the connection side with the ventilation vent 10 is defined as the ventilation side cross-sectional area S out The cross-sectional area (cross-sectional area of ​​the second duct 7b) on the side of the connection with the smoke collection vent 13 is defined as the smoke collection side cross-sectional area S in When the area ratio of the two cross-sectional areas is out / S in is 2.25. This area ratio S out / S in is preferably in the range of 1.2 to 5.0, more preferably in the range of 1.5 to 4.0, and even more preferably in the range of 2.0 to 3.0. out / S in If the value is outside the range of 1.2 or more and 5.0 or less, excessive load may be placed on the ventilation device 2, or the efficiency of sending steam, oily smoke, etc. generated by the cooking utensils 4 to the ventilation device 2 may decrease.

[0021] As shown in FIG. 4(a), a flange 16 extending radially outward is formed at the end of the duct 7 (first duct 7a) connected to the ventilation vent 10, and a magnet 17 is provided on the flange 16. The magnet 17 and the magnet 11 provided on the periphery of the ventilation vent 10 formed in the ventilation base part 5 are attracted to each other, so that the duct 7 and the ventilation base part 5 are connected to each other. Also, as shown in FIG. 4(b), a flange 18 extending radially outward is formed at the end of the duct 7 (second duct 7b) connected to the smoke collection vent 13. The slit 14 of the smoke collection hood 6 is opened, the smoke collection vent 13 is once enlarged, and the duct 7 is inserted so that the flange 18 is hooked on the periphery of the smoke collection vent 13, and the magnets 15 provided on the edge of the slit 14 are attracted to each other, so that the duct 7 and the smoke collection hood 6 are connected to each other. Incidentally, instead of connection by attraction of magnets 11, 15, and 17, connection may also be made by means of hook-and-loop fasteners or the like.

[0022] The hanging member 8 is a member for holding the duct 7 in a suspended state from the ceiling surface 19 (see FIG. 1). The hanging member 8 has a rail portion 20 fixed to the ceiling surface 19, a slider 21 movable along the rail portion 20, a fixing mechanism 22 for fixing the slider 21 at a desired position on the rail portion 20, and a connecting member 23 for connecting the slider 21 and the duct 7.

[0023] In this embodiment, as shown in FIG. 5, the rail parts 20 extend radially outward from the ring-shaped base part 24 in a plan view, that is, three rail parts 20 extend non-parallel to each other. To improve compactness when stored, the rail parts 20 and the base part 24 can be configured to be disassembled as separate parts. The base part 24 is disposed between the ceiling surface 19 and a lighting fixture 25 (ceiling light) attached to the ceiling surface 19. If a gap occurs between the lighting fixture 25 and each rail part 20, a gap member 26 is provided to fill the gap. The gap member 26 is preferably made of an elastic material, and sponge is used in this embodiment. By providing the gap member 26, the attachment state of the base part 24 and the rail parts 20 to the ceiling surface 19 is stabilized.

[0024] Each rail portion 20 extends through a gap in a sponge member 27 (three in the configuration of FIG. 5) provided between the lighting fixture 25 and the ceiling surface 19. The number of rail portions 20 can be changed appropriately according to the configuration of the lighting fixture 25. Also, instead of disposing the base portion 24 between the ceiling surface 19 and the lighting fixture 25, it can be fixed directly to the ceiling surface 19 using fixing means such as a screw.

[0025] As shown in FIG. 6(a)(b), a long hole 28 is formed in the center of the rail portion 20 so as to penetrate downward along the extending direction. The slider 21 is a block-shaped member provided so as to straddle the long hole 28, and a hanging tool 29 attached to the slider 21 is hung from the rail portion 20 through the long hole 28. The fixing mechanism 22 is configured by fitting a recess 22a formed on both sides in the width direction of the long hole 28 formed in the rail portion 20 with a protrusion 22b formed on the lower surface of the slider 21. When the protrusion 22b of the slider 21 is fitted into the recess 22a formed in the rail portion 20 at a desired position in the extending direction of the rail portion 20 and the rail portion 20 is attached to the ceiling surface 19, the slider 21 can be fixed at the desired position. The shapes and numbers of the recess 22a and the protrusion 22b according to this embodiment are merely exemplary and can be changed as appropriate.

[0026] In this embodiment, a rod-shaped member having a predetermined rigidity is used as the connecting member 23. A locking portion (not shown) that is locked to the suspender 29 is formed at the upper end of the connecting member 23. In addition, a ring-shaped member 30 that is wound around the duct 7 is provided at the lower end of the connecting member 23. Note that instead of using a rod-shaped member as the connecting member 23, a rope may be used.

[0027] As another example of the fixing mechanism 22, as shown in Figures 7(a) and (b), the slider 21 can be made to slide freely along the rail portion 20, and multiple pin holes 22c can be formed in the rail portion 20 along its extension direction, and pin hole 22d can be formed in the slider 21, and the slider 21 can be fixed by sliding the slider 21 to a desired position on the rail portion 20 and inserting a common pin 22e into both pin holes 22c, 22d.

[0028] In the configurations shown in Figures 6(a)(b) and 7(a)(b), one slider 21 is provided on one rail portion 20, but it is also possible to provide multiple sliders 21 on one rail portion 20.

[0029] In the above-mentioned smoke collector 1, the cross-sectional area of ​​the ventilation region when the duct 7 connecting the ventilation vent 10 of the ventilation base part 5 and the smoke collection vent 13 of the smoke collection hood 6 is cut along a plane perpendicular to its extension direction is smaller on the connection side with the smoke collection vent 13 than on the connection side with the ventilation vent 10. This prevents excessive load on the ventilation device 2 caused by the intake from the duct 7 with a relatively large area, while increasing the suction speed of the duct 7 with a relatively small area, and effectively sends steam and oily smoke generated by the cooking utensils 4 to the ventilation device 2. In addition, in the slim type ventilation device 2 with a straightening plate provided in the center of the intake port, it is possible to prevent the problem that the dirt on the straightening plate becomes noticeable when the ventilation base part 5 is removed due to the exhaust gas concentrating on a part of the straightening plate.

[0030] In addition, the above-mentioned smoke collector 1 has a ventilation side cross-sectional area S, which is the cross-sectional area of ​​the ventilation area on the connection side with the ventilation vent 10 (the cross-sectional area of ​​the first duct 7a). out The cross-sectional area on the side of the connection with the smoke collection vent 13 (the cross-sectional area of ​​the second duct 7b) is S in Then, the area ratio S of both cross sections is out / S inis configured to be within the range of 1.2 or more and 5.0 or less, so that steam, oily smoke, etc. generated by the cooking utensils 4 can be more effectively sent to the ventilation device 2 while reliably preventing excessive load on the ventilation device 2.

[0031] Furthermore, since the above-mentioned smoke collection device 1 uses a hanging member 8 for suspending the duct 7, even if the ventilation device 2 and the smoke collection hood 6 are positioned far apart and a long duct 7 is used, the duct 7 can be prevented from sagging.

[0032] Furthermore, the hanging member 8 has a plurality of linear rail portions 20, and the plurality of rail portions 20 are fixed to the ceiling surface 19 in a non-parallel state, which makes it easier to widen the interval between the sliders 21 provided on the rail portions 20, and therefore the duct 7 can be stably suspended by the hanging member 8. In particular, in the above embodiment, the plurality of rail portions 20 extend radially outward from the base portion 24, which is ring-shaped in a plan view, and the base portion 24 is disposed between the ceiling surface 19 and the lighting fixture 25 attached to the ceiling surface 19. This eliminates the need to form holes in the ceiling surface 19 for screws when fixing the hanging member 8 to the ceiling surface 19, and prevents deterioration of the appearance.

[0033] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0034] 1 Smoke collection device 2. Ventilation system 3 Dining Table 4. Cooking utensils 5 Ventilation base 6 Smoke collection hood 7 Duct 7a First Duct 7b Second Duct 8 Suspension members 9 Magnets (around the periphery of the ventilation base) 10 Ventilation vent 11 Magnets (around ventilation vents) 12 Rising part 13 Smoke collection vent 14 Cut 15 Magnet (on the edge of the smoke hood notch) 16 (First duct side) flange 17 Magnet (on flange of first duct) 18 (Second duct side) flange 19 Ceiling surface 20 Rail section 21 Slider 22 Fixing mechanism 22a Recess 22b Convex part 22c Pin hole (formed in rail section) 22d Pin hole (formed in slider) 22e Pin 23 Connection parts 24 base 25 Lighting equipment 26 Gap members 27 Sponge material 28 long hole 29 Lifting equipment 30 Annular member

Claims

1. A ventilation base part (5) provided so as to cover an intake port of the ventilation device (2) and having a ventilation vent (10) formed therein; A smoke collection hood (6) provided to cover the upper part of the cooking utensil (4) and having a smoke collection vent (13) formed therein; A duct (7) connecting the ventilation vent (10) and the smoke collection vent (13); A hanging member (8) that holds the duct (7) in a suspended state from a ceiling surface (19); The smoke collection device has a cross-sectional area of ​​the ventilation region when the duct (7) is cut along a plane perpendicular to the extension direction thereof, the cross-sectional area being smaller on the side of the connection with the smoke collection vent (13) than on the side of the connection with the ventilation vent (10).

2. The cross-sectional area on the connection side with the ventilation vent (10) is defined as S ｏｕｔ The cross-sectional area on the side of the connection with the smoke collection vent (13) is S ｉｎ When the cross-sectional area ratio S ｏｕｔ / S ｉｎ The smoke collector according to claim 1, wherein the ratio of the smoky-smoking ratio to the smoky-smoking ratio is in the range of 1.2 or more and 5.0 or less.

3. The smoke collection device of claim 1 or 2, wherein the hanging member (8) has a rail portion (20) fixed to the ceiling surface (19), a slider (21) movable along the rail portion (20), a fixing mechanism (22) that fixes the slider (21) at a desired position on the rail portion (20), and a connecting member (23) that connects the slider (21) to the duct (7).

4. 4. The smoke collection device according to claim 3, comprising a plurality of linear rail portions (20), the plurality of rail portions (20) being fixed to the ceiling surface (19) in a non-parallel state to one another.

5. The smoke collection device of claim 4, wherein the multiple rail portions (20) extend radially outward from a ring-shaped base (24) when viewed in a plane, and the base (24) is positioned between the ceiling surface (19) and a lighting fixture (25) attached to the ceiling surface (19).

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