JP2011252690A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a range hood in which efficiency of piping work is improved.SOLUTION: A range hood 1 has: a ventilation fan hole concealment frame 5 which is fitted, to the outdoor side from the indoor side of a wall 101, for a ventilation fan hole 103 opened at the wall 101; a blower unit 2 which inhales exhaust gas and exhausts it; and an exhaust pipe 7 which is connected to the blower unit 2. The ventilation fan hole concealment frame 5 is arranged at the outside of the internal wall plane 101a on an indoor side of the wall 101, and has a connecting part 57 connected to the exhaust pipe 7.

Description

  The present invention relates to a range hood that exhausts exhaust gas generated by a cooking utensil from a room to a room.

  Conventionally, as shown in FIG. 10, a ventilation fan 201 is provided on the wall 101 of the kitchen. The ventilation fan 201 exhausts smoke, oil, odor, etc. generated in the cooking utensil 102 to the outdoors by rotating a blade 202 rotatably attached to the ventilation fan frame 203. A ventilation fan cover 204 for collecting exhaust gas generated in the cooking utensil 102 on the ventilation fan 201 is attached to the inner wall 101 a on the indoor side of the wall 101 so as to cover the cooking utensil 102. On the other hand, a weather cover 105 is attached to the outer wall surface 101b on the outdoor side of the wall 101 in order to prevent rain and the like from entering the room. In recent years, an increasing number of households replace this ventilation fan 201 with a range hood 301 shown in FIG. This is because the range hood 301 has more functions than the ventilation fan 201 that simply exhausts air.

  For example, as shown in FIG. 10, the ventilation fan 201 is installed in a ventilation fan hole 103 formed in the wall 101. On the other hand, as shown in FIG. 11, the range hood 301 is attached to the wall 101 so as to cover the cooking utensil 102, and a blower unit 302 for sucking and exhausting exhaust gas is installed directly above the cooking utensil 102. Yes. Therefore, the range hood 301 can efficiently collect and exhaust the exhaust gas generated in the cooking utensil 102 as compared with the ventilation fan 201.

  Further, for example, in the ventilation fan 201 shown in FIG. 10, oil or dust contained in the exhaust gas easily adheres to the blade 202, the ventilation fan frame 203, and the wall around the ventilation fan 201. For this reason, in daily care, the entire ventilation fan 201 is cleaned by removing the blades 202 from the ventilation fan frame 203 and cleaning them, or by wiping and cleaning the ventilation fan frame 203 from which the blades 202 have been removed and the wall 101 around the ventilation fan frame 203. There is a need. On the other hand, in the range hood 301 shown in FIG. 11, a filter 303 and a current plate 312 are attached to the range hood main body 304 so as to cover the suction port of the blower unit 302. The range hood 301 forms an air flow that collects the exhaust gas generated in the cooking utensil 102 in the blower unit 302 by the baffle plate 312, removes oil and dust from the exhaust gas by the filter 303, and then removes the exhaust gas from the blower unit 302. I try to discharge it outdoors. Therefore, in the range hood 301, the filter 303 is mainly contaminated, and the filter 303 may be removed from the range hood main body 304 and cleaned daily. Since the filter 303 is disposed at a position lower than the ventilation fan 201, it can be easily attached to and detached from the range hood main body 304. Therefore, the range hood 301 is easier to maintain daily than the ventilation fan 201.

The ventilation fan 201 is replaced with the range hood 301 as follows.
First, the blades 202 of the ventilation fan 201 shown in FIG. 10 are removed from the ventilation fan frame 203. The ventilation fan frame 203 is fixed to a wooden frame 104 provided along the inner wall of the ventilation fan hole 103 with a thumbscrew (not shown). Therefore, a thumbscrew (not shown) is removed and the ventilation fan frame 203 is pulled out from the wooden frame 104. Then, as shown in FIG. 11 (for example, see Patent Document 1), a concealing plate 305 having a cylindrical connecting portion 306 is pressed against the inner wall surface 101a of the wall 101 from the inside so as to close the ventilation fan hole 103, and screwed. At 310, the concealment plate 305 is fixed to the wooden frame 104. Then, the blower unit 302 is fixed to the inner wall surface 101a. Then, the blower unit 302 is connected to the connection portion 306 of the concealment plate 305 through the exhaust pipe 307 so as to communicate indoors and outdoors. Then, a front curtain plate 308 is attached so as to hide the exhaust pipe 307. A fire prevention member 309 is attached between the wooden frame 104 and the concealment plate 305. Further, the concealment plate 305 is attached with a pipe hood 311 from the outdoor side so that insects, rainwater and the like do not enter the indoor from the outside.

Japanese Utility Model Publication No. 63-2839

  However, in the conventional range hood 301, the connecting portion 306 of the concealment plate 305 protrudes from the inner wall surface 101a of the wall 101 to the indoor side. Therefore, the space S <b> 2 between the blower unit 302 and the connection portion 306 is narrow, and the worker has a hard time connecting the blower unit 302 and the connection portion 306 with the exhaust pipe 307.

  This invention is made | formed in order to solve the said problem, and it aims at providing the range hood which can improve piping work efficiency.

  In order to solve the above-described problem, a range hood according to one aspect of the present invention includes a ventilation fan hole concealment frame that is fitted from the indoor side to the outdoor side of the wall with respect to the ventilation fan hole that opens in the wall. A fan unit that sucks and exhausts exhaust gas, and an exhaust pipe connected to the fan unit, and the ventilation fan hole concealment frame is disposed outside the inner wall surface on the indoor side of the wall, A connecting portion connected to the exhaust pipe;

It is preferable that the range hood of the said structure is provided so that the said ventilation fan hole concealment frame may protrude from the outer wall surface of the outdoor side of the said wall, and the said connection part is arrange | positioned on the outer side of the said outer wall surface.
It is preferable that the range hood of the said structure has a weather cover attached to the said outer wall surface, and the said ventilation fan hole concealment frame is arrange | positioned in the said weather cover.

  In the range hood configured as described above, the ventilation fan hole concealment frame is disposed inside the ventilation fan hole, and the connection portion is disposed between the inner wall surface and the outer wall surface on the outdoor side of the wall. Is preferred.

  In the range hood having the above configuration, the ventilation fan hole concealing frame holds the frame member disposed along the inner wall of the ventilation fan hole and the connection portion, and is provided at an opening on the outdoor side of the frame member. A movable member movably provided, a closing member that closes a gap between the movable member and the frame member, and a fixing member that fixes the movable member and the closing member to the frame member It is preferable to have.

  In the range hood having the above-described configuration, it is preferable that the ventilation fan hole concealment frame is integrally attached with a fire prevention member at least on the frame member.

  In the range hood having the above-described configuration, the connection portion has a shape in which a port to which the exhaust pipe is connected is eccentric with respect to a port connected to the ventilation fan hole concealment frame, with respect to the ventilation fan hole concealment frame. It is preferable that it is attached so that rotation is possible.

  In the range hood having the above-described configuration, it is preferable that the ventilation fan hole concealment frame is integrally attached with a fire prevention member at least on a surface in contact with the ventilation fan hole of the wall.

  In the range hood configured as described above, it is preferable that at least the connection portion is made of a non-combustible material.

  In the range hood configured as described above, it is preferable that a vent cap for preventing the entry of a bird is provided in the connection portion.

  Since the connection part of the ventilation fan hole concealment frame does not protrude indoors from the inner wall surface of the wall, the space between the blower unit and the connection part of the ventilation fan hole concealment frame can be secured widely. Therefore, it is easy to connect the exhaust pipe to the blower unit and the connection part of the ventilation fan hole concealment frame. Therefore, according to the range hood of this invention, piping work efficiency can be improved.

Since the range hood having the above-described configuration is provided with the connection portion of the ventilation fan frame concealment frame outdoors, the space between the blower unit and the connection portion of the ventilation fan hole concealment frame can be widened.
The range hood configured as described above has a ventilation fan hole concealment frame projecting from the outer wall surface disposed in the weather cover, so that the ventilation fan hole concealment frame is hidden behind the weather cover and is difficult to see outdoors.

  In the range hood with the above configuration, the ventilation fan hole concealment frame is disposed inside the ventilation fan hole, and the connection part of the inner wall hole of the ventilation fan hole is disposed between the inner wall surface and the outer wall surface of the wall so that the outer wall surface on the outdoor side of the wall Since it does not protrude, for example, even when the space covered by the weather cover attached to the outer wall surface is narrow, the space between the blower unit and the connection portion of the ventilation fan hole concealment frame can be expanded.

  The range hood having the above configuration adjusts the position where the movable member is fixed to the frame member in accordance with the position of the exhaust pipe, and closes the gap formed between the movable member and the frame member with the closing member. Thus, the position of the connecting portion can be easily adjusted, and piping work is easy.

  In the range hood with the above configuration, the ventilation fan hole concealing member is attached to at least the frame member with the fire prevention member integrally, and the frame member and the exhaust pipe are isolated by the fire prevention member, so the ventilation fan is attached to the exhaust pipe through the frame member. It is possible to prevent the fire from spreading to the hole. Further, the fireproof member can be easily attached to the frame member.

  The range hood of the above configuration has a shape in which the connection part is eccentric to the port connected to the ventilation fan hole concealment frame, and the port to which the exhaust pipe is connected can rotate with respect to the ventilation fan hole concealment frame Because it is attached, if the connection part is rotated with respect to the ventilation fan hole concealment frame, the position of the port to which the exhaust pipe is connected can be easily changed, and the piping work for connecting the exhaust pipe to the connection part can be performed. Easy to do.

  In the range hood having the above configuration, since the ventilation fan hole concealment frame is integrally attached with the fire prevention member on at least the surface of the wall contacting the ventilation fan hole, the ventilation fan hole concealment frame is attached to the wall ventilation fan hole at the same time. A fireproof member can be attached to the contact surface with the hood, and the workability of attaching the range hood is good.

  In the range hood with the above configuration, at least the connection part is made of non-combustible material, so the exhaust pipe and ventilation fan hole concealment frame are separated by non-combustible material, preventing the fire from spreading from the exhaust pipe to the ventilation fan hole concealment frame can do. Further, the work for attaching the fireproof member to the ventilation fan hole concealment frame can be omitted, and the work for replacing and attaching the range hood can be easily performed.

  In the range hood having the above-described configuration, the vent cap that prevents the entry of the bird is installed in the connection portion of the ventilation fan hole concealing frame, so that it is possible to prevent the bird from entering the indoor from the outside.

It is a schematic block diagram of the range hood which concerns on 1st Embodiment of this invention. It is a schematic block diagram of an exhaust pipe. It is a disassembled perspective view of a ventilation fan hole concealment frame. It is a front view of a ventilation fan hole concealment frame, Comprising: The state which has arrange | positioned the connection part in the 1st position is shown. It is a front view of a ventilation fan hole concealment frame, Comprising: The state which has arrange | positioned the connection part in the 2nd position is shown. It is a front view of a ventilation fan hole concealment frame, Comprising: The state which has arrange | positioned the connection part in the 3rd position is shown. It is sectional drawing of the ventilation fan hole concealment frame applied to the range hood which concerns on 2nd Embodiment of this invention. It is a figure which shows the modification of a movable member. It is a figure which shows the modification of a ventilation fan hole concealment frame. It is the schematic which shows the example of installation of a ventilation fan. It is a schematic block diagram of the conventional range hood.

  Hereinafter, embodiments of a range hood according to the present invention will be described with reference to the drawings.

(First embodiment)
<Schematic configuration of range hood>
FIG. 1 is a schematic configuration diagram of a range hood 1.
The range hood 1 is installed so as to cover the upper side of the cooking utensil 102 in place of the ventilation fan 201 shown in FIG. In the range hood 1, the range hood body 4 is fixed to the inner wall surface 101 a of the wall 101. The range hood main body 4 is internally provided with a blower unit 2 that forms an air flow that sucks and exhausts exhaust gas generated in the cooking utensil 102. The filter 3 is detachably supported by bars 4 a and 4 a provided on the range hood body 4, and is disposed between the rectifying plate 12 and the blower unit 2. The ventilation fan hole 103 from which the ventilation fan 201 has been removed is closed by the ventilation fan hole concealment frame 5 (hereinafter referred to as “concealment frame 5”). The exhaust pipe 7 is connected to the blower unit 2 and the concealment frame 5 and forms a flow path for discharging the exhaust gas sucked by the blower unit 2 to the outside. The concealment frame 5 is provided with a vent cap 11 for preventing birds from entering the indoors from the outdoors.

FIG. 2 is a schematic configuration diagram of the exhaust pipe 7.
The exhaust pipe 7 shown in FIG. 2 has a structure in which the piping space can be made smaller than that of the bellows type exhaust pipe 307 shown in FIG. That is, the exhaust pipe 7 connects the short straight pipe 71, the elbow pipe 72, and the long straight pipe 73, the opening connected to the blower unit 2 by the elbow pipe 72 having a low overall height H, and the ventilation fan concealment frame 5. The direction of the opening connected to the connecting portion 57 is changed in a small space.

  The elbow pipe 72 has a circular cross section perpendicular to the flow path axis. The elbow pipe 72 includes a bent portion 72e that bends at 90 degrees, and connection portions 72a and 72b are provided with a phase difference of 90 degrees. The inner periphery P1 of the bent portion 72e is formed only with a processing width necessary for forming the bent portion 72e and is shortened. In the elbow pipe 72, the outer periphery P2 of the bent portion 72e is formed as a curved surface so that the pressure loss is reduced. In such an elbow pipe 72, since the inner circumference P1 of the bent portion 72e is short, the total height H of the bent portion 72e is a value obtained by adding the flow path cross-sectional outer diameter dimension of the elbow pipe 72 and the processing width of the inner circumference P1. It is possible to change the direction of the flow path within a narrow range. A plurality of (four in this embodiment) long grooves 72d are formed through the connecting portion 72b. The long grooves 72d are formed at equal intervals along the circumferential direction of the connecting portion 72b. The long groove 72 d is slidable with the shaft portion of the screw member 74, and the groove width is smaller than the diameter of the head portion of the screw member 74. In the connecting portion 72a, two screw holes 72c are provided at symmetrical positions.

  Similar to the connection portions 72a and 72b of the elbow pipe 72, the connection portions 71a, 71b, 73a and 73b of the straight tubes 71 and 73 are provided with screw holes 71c and 73c and long grooves 71d and 73d.

  In the elbow pipe 72, the connecting portion 71b of the straight pipe 71 is inserted into the connecting portion 72a, and the screw member 74 inserted into the long groove 71d formed in the connecting portion 71b is inserted into the screw hole 72c provided in the connecting portion 72a. In a state where it is lightly screwed and temporarily fixed, it is rotated with respect to the straight pipe 71 and the direction of the connecting portion 72b is adjusted. Thereafter, the elbow pipe 72 is fixed and connected to the straight pipe 71 by screwing the screw member 74 firmly into the screw hole 72c and performing final tightening. In the same manner, the connecting portion 73 a of the straight pipe 73 is also connected to the connecting portion 72 b of the elbow pipe 72.

<Schematic configuration of ventilation fan hole concealment frame>
FIG. 3 is an exploded perspective view of the concealment frame 5.
The concealment frame 5 includes a frame body 51 that is fitted into the wooden frame 104 of the ventilation fan hole 103. The frame main body 51 has a box shape opened to one side, and a flange portion 52 is provided along the outer edge of the opening. A plurality of through holes 53 through which the fixing screw 10 for fixing the concealment frame 5 to the wooden frame 104 is passed are formed in the flange portion 52. In the frame main body 51, the fire prevention member 9 is fixed to the side surface arranged along the wooden frame 104 from the outside with an adhesive or a screw. The fireproof member 9 may be made of a nonflammable material such as a calcium plate, or a fireproof seal material that expands when heated to isolate the members from each other and shut off the fire. The frame main body 51 is provided with a mounting opening 54 in a horizontally long rectangular shape on a surface facing the opening. The attachment opening 54 is closed by the connection portion forming member 55.

  The connecting portion forming member 55 is composed of two parts, a movable member 56 and a closing member 58, so that the arrangement of the connecting portion 57 to which the exhaust pipe 7 is connected can be flexibly changed. The movable member 56 has a plate shape whose vertical width is larger than the vertical width of the mounting opening 54 and whose horizontal width is smaller than the horizontal width of the mounting opening 54. A connecting portion 57 to which the exhaust pipe 7 is connected protrudes on one surface of the movable member 56. Similarly to the screw hole 72c of the elbow pipe 72, a screw hole 57d is formed in the opening of the connection part 57. In order to close the gap formed between the frame main body 51 and the movable member 56, the closing member 58 has the same vertical width as the vertical width of the movable member 56 (a width larger than the vertical width of the mounting opening 54). In this case, the lateral width is smaller than the lateral width of the movable member 56. The movable member 56 and the closing member 58 are fixed to the frame main body 51 by tightening nuts 63 into bolts 62 inserted through the insertion holes 59, 60, 61, respectively.

<Method for adjusting the arrangement of the connecting portion>
Next, a method for adjusting the arrangement of the connecting portions 57 will be described. 4, 5, and 6 are front views of the concealment frame 5. In particular, FIG. 4 shows a state where the connecting portion 57 is arranged at the first position, FIG. 5 shows a state where the connecting portion 57 is arranged at the second position, and FIG. 6 shows that the connecting portion 57 is at the third position. Shows the state of placement.
The connecting portion 57 is provided on the movable member 56 so as to be shifted in the lateral direction (horizontal direction) from the central portion of the movable member 56. The concealment frame 5 can selectively arrange the connecting portion 57 at any one of the first position, the second position, and the third position by changing the attachment direction and the attachment position of the movable member 56.

  That is, as shown in FIG. 4, when the connecting portion 57 is arranged at the center (the arrangement of the connecting portion 57 is referred to as “first position”), the closing member 58 is arranged at the left end of the mounting opening 54 in the drawing. Place it close to. Then, the direction of the movable member 56 is changed so that the connection portion 57 is located on the left side from the center of the movable member 56, and the movable member 56 is disposed close to the right end of the attachment opening 54 in the drawing. Then, the movable member 56 and the closing member 58 are fixed to the frame main body 51 with bolts 62 and nuts 63.

  Further, as shown in FIG. 5, when the connection portion 57 is arranged from the right when viewed from the front of the concealment frame 5 (the arrangement of the connection portion 57 is referred to as “second position”), the closing member 58. Is arranged close to the left end of the mounting opening 54 in the figure. Then, the direction of the movable member 56 is changed so that the connecting portion 57 is located on the right side from the center of the movable member 56, and the movable member 56 is arranged close to the right end of the attachment opening 54 in the drawing. Then, the movable member 56 and the closing member 58 are fixed to the frame main body 51 with bolts 62 and nuts 63.

  As shown in FIG. 6, when the connection portion 57 is arranged from the left when viewed from the front of the concealment frame 5 (the arrangement of the connection portion 57 is referred to as “third position”), the closing member 58. Is arranged close to the right end of the mounting opening 54 in the figure. Then, the direction of the movable member 56 is changed so that the connecting portion 57 is located on the left side from the center of the movable member 56, and the movable member 56 is arranged close to the left end of the attachment opening 54 in the drawing. Then, the movable member 56 and the closing member 58 are fixed to the frame main body 51 with bolts 62 and nuts 63.

<Range Hood Replacement Procedure>
Next, a procedure for replacing the ventilation fan 201 shown in FIG. 10 with the range hood 1 will be described.
The ventilation fan 201 is removed from the ventilation fan hole 103 of the wall 101. And the position which connects the exhaust pipe 7 to the connection part 57 is estimated from the positional relationship of the air blower unit 2 and the ventilation fan hole 103, and arrangement | positioning of the connection part 57 with respect to the concealment frame 5 is adjusted. Since the arrangement adjustment method of the connecting portion 57 has been described above, the description thereof is omitted here. Then, the concealment frame 5 is attached to the ventilation fan hole 103. In addition, the vent cap 11 is attached to the connection portion 57 to prevent a bird from entering the indoor from the outside.

  The concealment frame 5 is inserted into the wooden frame 104 of the wall 101 with the opening of the frame body 51 facing the indoor side. Then, the flange portion 52 is pressed against the inner wall surface 101 a of the wall 101, and the screw 10 is passed through the through hole 53 of the flange portion 52 and screwed into the wooden frame 104. Thereby, the frame main body 51 and the wooden frame 104 are fastened and fixed to the screw 10. At this time, the mounting opening 54 of the frame body 51 is closed by the movable member 56 and the closing member 58. For this reason, the ventilation fan hole 104 is partitioned between the outdoors and the indoors by the concealment frame 5.

  Here, as one of fire prevention measures, there is a measure of disposing a non-combustible material between the concealment frame 5 and the wooden frame 104. In the range hood 1 of the present embodiment, a fireproof member 9 made of a non-combustible material is fixed to the outer surface of the concealment frame 5 in advance. Therefore, at the same time that the concealment frame 5 is fixed to the wooden frame 104, the work of disposing the fire prevention member 9 between the wooden frame 104 and the concealment frame 5 can be performed, and the workability of attaching the range hood 1 is good.

  Then, the range hood body 4 is fixed to the inner wall surface 101 a of the wall 101. And the connection part 57 of the range hood body 4 and the concealment frame 5 is connected by the exhaust pipe 7. First, the connecting portion 71 a of the straight pipe 71 is fixed to the blower unit 2 with the screw member 74. Then, the connection part 71 b of the straight pipe 71 and the connection part 72 a of the elbow pipe 72 are fixed by a screw member 74. Then, the connection part 72 b of the elbow pipe 72 and the connection part 73 a of the straight pipe 73 are fixed with a screw member 74. Further, the connecting portion 73 b of the straight pipe 73 is fixed to the connecting portion 57 of the concealment frame 5 with a screw member 74.

  Here, in the concealment frame 5, the connection portion 57 is provided outside the inner wall surface 101 a of the wall 101. Thereby, the space S1 between the blower unit 2 and the connecting portion 57 is widely secured. Therefore, it is easy for the piping operator to perform an operation of connecting the blower unit 2 and the connecting portion 57 with the exhaust pipe 7. Therefore, according to the range hood 1 of this embodiment, piping work efficiency improves.

  Further, in the range hood 1 of the present embodiment, the concealment frame 5 does not protrude outward from the outer wall surface 101 b of the wall 101, and the connection portion 57 is disposed in the ventilation fan hole 103. Therefore, for example, even if the space S3 covered by the weather cover 105 provided on the outer wall surface 101b is narrow, the space S1 between the blower unit 2 and the concealment frame 5 can be expanded.

  Further, the range hood 1 of the present embodiment adjusts the direction of the movable member 56 and closes the gap formed between the movable member 56 and the mounting opening 54 with the closing member 58, thereby arranging the connecting portion 57. Can be adjusted. Therefore, at the time of piping work, the position of the connecting portion 57 can be easily adjusted according to the arrangement of the blower unit 2 and the shape of the exhaust pipe 7, and the piping work is easy to perform. In particular, since the exhaust pipe 7 of the present embodiment is configured by connecting the straight pipe 71, the elbow pipe 72, and the straight pipe 73, the exhaust pipe 7 is connected to the connecting portion 57 as compared with the bellows type exhaust pipe 307 shown in FIG. The position of the opening to be performed (the position of the connecting portion 73b of the straight pipe 73) is limited. Even in such a case, the alignment of the connection portion 73b of the straight pipe 73 and the connection portion 57 of the concealment frame 5 is adjusted by adjusting the arrangement of the connection portion 57 in accordance with the position of the connection portion 73b of the straight tube 73. The straight tube 73 and the connecting portion 57 can be easily connected.

  Then, the range hood cover 8 is fixed to the range hood body 4 and the wall 101 so as to hide the exhaust pipe 7 piped as described above. Then, various parts such as the filter 3 and the current plate 12 are attached to the range hood body 4.

A vent cap 11 is provided in the connection portion 57. Therefore, the range hood 1 of this embodiment can prevent a bird from entering the indoors from the outdoors.
Moreover, since the fireproof member 9 is arrange | positioned between the frame main body 51 and the wall 101, the range hood 1 can prevent the fire spread from the exhaust pipe 7 to the wall 101. FIG.

(Second Embodiment)
Subsequently, a second embodiment of the present invention will be described. FIG. 7 is a cross-sectional view of the ventilation fan hole concealment frame 81 applied to the range hood according to the second embodiment of the present invention.
The range hood of the present embodiment has the same configuration as the range hood 1 of the first embodiment except for the ventilation fan hole concealment frame 81 (hereinafter referred to as “the concealment frame 81”). Therefore, it demonstrates centering around the concealment frame 81 here, and the structure which is common in the range hood 1 of 1st Embodiment uses the same code | symbol in drawing, and abbreviate | omits description suitably.

  The concealment frame 81 is different in the shape of the frame body 82 from the shape of the frame body 51 of the first embodiment. In the frame main body 82, the outer wall surface side surface 83 projects outward from the outer wall surface 101b of the wall 101, and the connecting portion 57 is disposed on the outer side of the outer wall surface 101b. The outer wall surface side surface 83 is provided obliquely downward, and exhausts the exhaust gas exhausted from the connection portion 57 toward the ground so as not to scatter. The frame main body 82 is disposed in the weather cover 105 so as not to be visible from the outside.

In the range hood of the present embodiment, the connection portion 57 of the concealment frame 81 is provided outdoors, so that the space S4 between the blower unit 2 and the connection portion 57 of the concealment frame 81 can be made wider than the space S1 of the first embodiment. .
In the range hood of the present embodiment, the ventilation fan hole concealment frame 81 protruding from the outer wall surface 101b is disposed in the weather cover 105. Therefore, the ventilation fan hole concealment frame 81 is hidden behind the weather cover 105 and is difficult to see outdoors. .
In the range hood of the present embodiment, the connecting portion 57 is disposed outside the outer wall surface 101 b of the wall 101 and is directed to a portion that opens downward in the weather cover 105. For this reason, when the range hood is operated, a back wind from the opening of the weather cover 105 to the inside of the connecting portion 57 is hardly generated, and the exhaust gas is smoothly exhausted from the exhaust pipe 7 to the outside through the connecting portion 57. . By smoothly exhausting the exhaust gas to the outdoors, oil and dust contained in the exhaust gas are less likely to adhere to the inner side surface and the outer wall surface side surface 83 of the frame main body 82. If the oil component adheres to the frame main body 82, there is a risk that insects that nourish the oil or the like enter the vent cap 11 into the frame main body 82 from the gap and proliferate. However, as described above, since oil or the like is hardly fixed in the frame main body 82, insects are not easily generated in the range hood, which is hygienic.

<Modification>
In addition, this invention is not limited to the said embodiment, Various application is possible.
For example, in the above embodiment, the elbow pipe 72 bent at 90 degrees is used, but an elbow pipe bent at 45 degrees may be used as a part of the exhaust pipe 7.
For example, you may provide the recessed part for inserting and arranging the fire prevention member 9 in the outer surface of the frame main bodies 51 and 82. FIG. In this case, the trouble of adhering the fire prevention member 9 to the frame main bodies 51 and 82 can be saved. For example, a weather cap for waterproofing may be attached to the connecting portion 57 from the outer wall surface 101b side. In this case, the weather cover 105 can be omitted and the appearance can be improved.
For example, in the above embodiment, the cylindrical connection portion 57 is fixed to the movable member 56. On the other hand, for example, as in the modification shown in FIG. 8, the shape of the connecting portion 91 is a shape in which the port 91 a to which the exhaust pipe 7 is connected is eccentric with respect to the port 91 b that is connected to the movable member 56. Further, the connecting portion 91 may be rotatably attached to the movable member 56 as indicated by an arrow in the figure. In this case, in addition to the attachment position and the attachment direction of the movable member 56 with respect to the frame main body 51, the arrangement of the port 91a can be moved by rotating the connecting portion 91 with respect to the movable member 56, so the exhaust pipe 7 is connected. The range connected to the part 91 can be expanded. Thereby, it becomes easier to connect the exhaust pipe 7 to the connection part 91, and the efficiency of piping work improves further than the said embodiment.
For example, as shown in FIG. 9, the fire prevention member 92 may be fixed by bonding or the like along the periphery of the attachment opening 54 of the frame main body 51. In this case, the fire prevention member 92 is interposed between the frame main body 51 and the connection portion forming member 55 (movable member 56, closing member 58), and the exhaust pipe 7 connected to the connection portion 57 is connected to the frame main body 51 and the wall. Isolated from 101. This prevents the fire from being spread on the wall 101 via the exhaust pipe 7. In this case, the use of the non-combustible material may be reduced by omitting the fire prevention member 9 to reduce the cost. Further, the fire prevention member 92 can be easily attached to the frame main bodies 51 and 82 before the ventilation fan hole concealing frame is fixed.
For example, at least the material of the connection portion 57 may be a non-combustible material. That is, for example, only the connecting portion 57, only the movable member 56 including the connecting portion 57, only the movable member 56 including the connecting portion 57 and the closing member 58, and the material of the ventilation fan hole concealment frame 5 as a whole may be non-combustible. In this case, since the exhaust pipe 7 is isolated from the frame main bodies 51, 82, the wall 101 and the like through the connection portion 57, it is possible to prevent the fire from spreading from the exhaust pipe 7 to the wall 101. Further, the work for attaching the fireproof member to the ventilation fan hole concealment frame can be omitted, and the work for replacing and attaching the range hood can be easily performed. In this case, the cost may be reduced by omitting the fire prevention member 9.
For example, in the above embodiment, the exhaust pipe 7 and the frame main bodies 51 and 82 have a double structure, and an air layer is formed between the exhaust pipe 7 and the frame main bodies 51 and 82. Therefore, it is difficult to spread from the exhaust pipe 7 to the wall 101 through the frame main bodies 51 and 82. Therefore, the fire prevention member 9 may be omitted to reduce the cost.

DESCRIPTION OF SYMBOLS 1 Range hood 2 Blower unit 5,82 Ventilation fan hole concealment frame 7 Exhaust pipe 9,92 Fire prevention member 11, Vent cap 56 Movable member 57,91 Connection part 58 Closure member 62 Bolt (an example of fixed member)
63 Nut (an example of a fixing member)
91a, 91b Port 101 Wall 101a Inner wall surface 101b Outer wall surface 103 Ventilation fan hole 105 Weather cover

Claims (10)

A ventilation fan hole concealment frame that is fitted from the indoor side to the outdoor side of the wall with respect to the ventilation fan hole that opens in the wall;
A blower unit that sucks and exhausts exhaust gas;
An exhaust pipe connected to the blower unit,
The range hood is characterized in that the ventilation fan hole concealment frame is disposed outside an inner wall surface on the indoor side of the wall and has a connection portion connected to the exhaust pipe. In the range hood described in Claim 1,
The ventilation fan hole concealment frame is provided so as to protrude from the outer wall surface on the outdoor side of the wall,
The range hood is characterized in that the connecting portion is disposed outside the outer wall surface. In the range hood described in Claim 2,
A weather cover is attached to the outer wall surface,
The range hood characterized in that the ventilation fan hole concealment frame is disposed in the weather cover. In the range hood described in Claim 1,
The ventilation fan concealment frame is disposed inside the ventilation fan hole;
The range hood, wherein the connecting portion is disposed between the inner wall surface and an outer wall surface on the outdoor side of the wall. In the range hood as described in any one of Claims 1 thru | or 4,
The ventilation fan hole concealment frame is
A frame member disposed along the inner wall of the ventilation fan hole;
A movable member that holds the connecting portion and is provided so as to be movable with respect to an opening on the outdoor side of the frame member;
A closing member that closes a gap between the movable member and the frame member;
A fixing member that fixes the movable member and the closing member to the frame member;
A range hood characterized by comprising: In the range hood described in Claim 5,
The cooker hood characterized in that the ventilation fan hole concealment frame is integrally attached with a fireproof member at least on the frame member. In the range hood as described in any one of Claims 1 thru | or 6,
The connecting portion has a shape in which a port to which the exhaust pipe is connected is eccentric with respect to a port to be connected to the ventilation fan hole concealment frame, and is rotatably attached to the ventilation fan hole concealment frame. A range hood characterized by In the range hood as described in any one of Claim 1 thru | or 7,
The range hood is characterized in that the ventilation fan hole concealing frame has a fire prevention member integrally attached to at least a surface of the wall that contacts the ventilation fan hole. In the range hood as described in any one of Claim 1 thru | or 7,
A range hood characterized in that at least the connecting portion is made of a non-combustible material. In the range hood as described in any one of Claims 1 thru | or 9,
The connecting hood is characterized in that a vent cap for preventing birds from entering is provided in the range hood.

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