JP2022141141A - Blind member and ventilation system - Google Patents

Abstract

To provide a blind member that can hide a pipe so as to present a good appearance.SOLUTION: A blind member 2 comprises a blind part 21 capable of being installed between a wall 5 of a building and a ventilating fan 3 separated from the wall 5 and attached in a room of the building so as to hide at least a portion of a pipe 4 connecting an opening 6 formed in the wall 5 and the ventilating fan 3. The outer peripheral shape of the blind part 21 is the same as the outer peripheral shape of the ventilating fan 3. The outer peripheral dimension of the blind part 21 is the same as the outer peripheral dimension of the ventilating fan 3.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a blind member that hides pipes for a ventilation fan, and a ventilation system that includes this blind member.

Household kitchen ventilation fans are propeller ventilation fans that are attached to openings formed in the walls of kitchens that communicate between the interior and the exterior, or centrifugal fan ventilation fans that are attached above cooking heaters. In recent years, some kitchens that used to use propeller ventilation fans are replacing them with centrifugal fan ventilation fans.

When performing such replacement, if a centrifugal fan type ventilation fan is attached to the opening where the propeller ventilation fan was attached, the centrifugal fan type ventilation fan may not be positioned above the cooking heater, or the centrifugal fan type ventilation fan and the cooking fan may not be positioned above the cooking heater. In some cases, it may not be possible to secure an appropriate height-direction distance from the heater. In such a case, as disclosed in Patent Document 1, the centrifugal fan-type ventilation fan is attached away from the opening so that the centrifugal fan-type ventilation fan is in an appropriate position with respect to the cooking heater, and the opening is and a centrifugal fan type ventilation fan are generally connected by piping.

JP-A-2016-1093

However, the technique disclosed in Patent Document 1 has a problem that the entire piping is exposed to the inside of the room, so that the appearance of the pipe is deteriorated and the design of the room is spoiled. Even if a blindfold member that hides the pipes is provided between the wall and the centrifugal fan type ventilation fan, if a step appears between the surface of the adjacent blindfold member and the surface of the centrifugal fan type ventilation fan, the appearance deteriorates. The design of the room is spoiled.

The present disclosure has been made in view of the above, and an object of the present disclosure is to obtain a blindfold member that can hide piping with good appearance.

In order to solve the above-described problems and achieve the object, the blind member according to the present disclosure provides at least part of a pipe that connects an opening formed in a wall of a building and a ventilation fan that is installed inside the building away from the wall. A blindfold part that can be installed between the wall and the ventilation fan is provided so as to hide the The peripheral shape of the blindfold part is the same as the peripheral shape of the ventilation fan. The outer circumference of the blindfold is the same as the outer circumference of the ventilation fan.

The blindfold member according to the present disclosure has the effect of being able to hide the piping with good appearance.

1 is a schematic side view showing a ventilation system provided with blindfold members according to a first embodiment; FIG. The perspective view which showed the opening formed in the wall of the building in Embodiment 1. The perspective view which showed the ventilation fan in Embodiment 1 Schematic front view showing a ventilation fan and piping in Embodiment 1 FIG. 3 is a perspective view showing a state in which the blindfold member and the ventilation fan according to Embodiment 1 are installed on the wall of the building. The perspective view which showed the state which installed the blindfold member in Embodiment 1 in the wall of the building. The perspective view which showed the state which installed piping in the wall of the building shown by FIG. FIG. 2 is a plan view showing the blindfold member according to Embodiment 1; The front view which showed the blindfold member in Embodiment 1. The side view which showed the blindfold member in Embodiment 1. FIG. 3 is a perspective view showing a connection portion according to Embodiment 1; Schematic side view showing a ventilation system provided with a blindfold member according to a second embodiment Schematic front view showing a ventilation fan and piping in Embodiment 2 The perspective view which showed the state which the blindfold member and piping in the modification of Embodiment 2 were installed in the wall of the building. The perspective view which showed the ventilation fan in the modification of Embodiment 2.

A blindfold member and a ventilation system according to embodiments will be described in detail below with reference to the drawings.

Embodiment 1.
FIG. 1 is a schematic side view showing a ventilation system 1 provided with a blindfold member 2 according to Embodiment 1. FIG. As shown in FIG. 1 , the ventilation system 1 includes a ventilation fan 3 , a pipe 4 and a blind member 2 . The present disclosure assumes a case where a propeller ventilation fan is replaced with a centrifugal fan type ventilation fan in a kitchen where a propeller ventilation fan has been used. Further, the present disclosure assumes that the pipe 4 is used when replacing the propeller ventilation fan with the centrifugal fan type ventilation fan. FIG. 1 shows a ventilation system 1 after replacing the propeller fan with a centrifugal fan. Hereinafter, the width direction of the ventilation fan 3 and blind member 2 is defined as the X-axis direction, the height direction of the ventilation fan 3 and blind member 2 is defined as the Y-axis direction, and the depth direction of the ventilation fan 3 and blind member 2 is defined as the Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction, which are the first directions, are directions orthogonal to each other.

A wall 5 of the building is formed with an opening 6 that communicates between the interior and exterior of the building. Wall 5 is the kitchen wall. An outdoor hood 7 is attached to a portion of the surface facing the outdoor side of the wall 5 that overlaps with the opening 6 . Although not shown, the gap between the outdoor hood 7 and the opening 6 is closed by a closing member such as a plate member. The ventilation fan 3 is installed inside the building away from the wall 5. - 特許庁The ventilation fan 3 is a device that sucks in indoor air and blows the sucked air out of the room. A pipe 4 is installed to connect the opening 6 and the ventilation fan 3 . When the ventilating fan 3 is operated, an air flow directed from the room to the outside is generated, and the air in the room is discharged to the outside through the pipe 4 and the opening 6 .

FIG. 2 is a perspective view showing the opening 6 formed in the wall 5 of the building according to the first embodiment. The opening 6 is an opening originally formed for mounting a propeller ventilation fan (not shown). Although the shape of the opening 6 is not particularly limited, it is generally rectangular. The size of the opening 6 is defined as □175, □250, □300, and □350 (mm) in the JIS standard.

As shown in FIG. 1, the ventilation fan 3 is a centrifugal fan type ventilation fan including a range hood 31 installed in the room of the building and a centrifugal fan 32 installed in the range hood 31 to generate an air flow. The ventilation fan 3 is attached above a cooking heater (not shown). When cooking using a cooking heater, oil and water vapor are generated. The ventilating fan 3 sucks in oil, water vapor, etc. together with indoor air by a centrifugal blower 32, and exhausts the sucked oil, water vapor, etc. to the outside.

FIG. 3 is a perspective view showing the ventilation fan 3 according to Embodiment 1. FIG. As shown in FIG. 3 , the range hood 31 is a metal member that forms the outer shell of the ventilation fan 3 . The range hood 31 is generally formed in a box shape. The range hood 31 is formed with an intake port 31f for taking in indoor air and a pipe connection port 31g for discharging the taken-in air. The range hood 31 has a hood top plate portion 31a, a hood main plate portion 31b, a hood back plate portion 31c, a first hood side plate portion 31d, and a second hood side plate portion 31e.

The hood top plate portion 31a is a portion extending in the X-axis direction. The plan view shape of the hood top plate portion 31a is rectangular. The hood top plate portion 31a is provided with a pipe connection port 31g to which the pipe 4 is connected.

The hood main plate portion 31b is a portion that extends downward from the end of the hood top plate portion 31a facing away from the wall 5 along the Z-axis direction. An upper portion of the hood main plate portion 31b is formed in a stepped shape in which an inclined surface and a vertical surface are connected. A lower portion of the hood plate portion 31b is opened obliquely downward. The intake port 31f opens from the lower portion of the hood front plate portion 31b to the bottom surface of the cooker hood 31. As shown in FIG.

The hood back plate portion 31c is a portion of the hood top plate portion 31a that extends downward from the end facing the wall 5 along the Z-axis direction. Although illustration is omitted, the rear view shape of the hood back plate portion 31c is rectangular.

The first hood side plate portion 31d is a portion of the hood top plate portion 31a that extends downward from one end along the X-axis direction. Although not shown, the side view shape of the first hood side plate portion 31d is generally trapezoidal, similar to the side view shape of the second hood side plate portion 31e.

The second hood side plate portion 31e is a portion extending downward from the other end of the hood top plate portion 31a along the X-axis direction. The side view shape of the second hood side plate portion 31e is generally trapezoidal.

As shown in FIG. 1, the centrifugal blower 32 has a motor 32a, an impeller 32b, and a scroll casing 32c. The motor 32a has a shaft 32d which is a rotating shaft. The impeller 32b is attached to the shaft 32d of the motor 32a and rotates around the shaft 32d. The impeller 32b generates a centrifugal airflow by rotating. The centrifugal blower 32 is installed so that the shaft 32d and the horizontal axis are aligned. The centrifugal blower 32 is installed with the motor 32 a facing the wall 5 and the impeller 32 b facing away from the wall 5 . A shaft 32d of the centrifugal blower 32 is provided at the same height position as the opening 6 in this embodiment.

The scroll casing 32c accommodates the impeller 32b and part of the motor 32a, and serves to guide the centrifugal airflow generated by the rotation of the impeller 32b in one direction. The scroll casing 32c is formed with an intake port 32e for sucking air in the room and an outlet port 32f for blowing out the air flow generated by the rotation of the impeller 32b. The scroll casing 32c is installed with the suction port 32e directed toward the interior of the room and the outlet port 32f directed upward. FIG. 4 is a schematic front view showing the ventilation fan 3 and the pipe 4 according to the first embodiment. In this embodiment, the suction port 32e is arranged at a position overlapping the center of the impeller 32b when the ventilation fan 3 is viewed from the front. The passage width of the scroll casing 32c increases from the windward side to the leeward side. Thereby, the pressure loss of the airflow flowing through the scroll casing 32c can be suppressed.

The centrifugal blower 32 sucks air from the center of the impeller 32b through the suction port 32e in a direction parallel to the shaft 32d, which is the rotation axis of the impeller 32b, and blows out the airflow in the tangential direction of the outer periphery of the impeller 32b by centrifugal force. . The blowing direction of the air flow is a direction that passes through a position that does not intersect with the rotational axis of the impeller 32b on a plane perpendicular to the air sucking direction. That is, the air intake direction and the air blowing direction are at a twisted position. In other words, when the air intake direction and the air blowing direction are projected onto a plane normal to the rotational axis of the impeller 32b, the air sucking direction and the air blowing direction are shifted from each other. direction to pass. The centrifugal blower 32 is of a single suction type in this embodiment, but may be of a double suction type.

As shown in FIG. 1, the pipe 4 is a metal member that connects the opening 6 and the ventilation fan 3 and guides the airflow generated by the centrifugal blower 32 to the outside of the building. The shape of the pipe 4 is, for example, a cylinder. The pipe 4 has a first pipe portion 41 extending from the opening 6 along the Z-axis direction to the side opposite to the wall 5, and a second pipe portion 42 extending upward from the tip of the first pipe portion 41. , and a third pipe portion 43 extending from the upper end portion of the second pipe portion 42 along the Z-axis direction to the side opposite to the wall 5 . A proximal end portion of the first pipe portion 41 is connected to the opening 6 . Further, as shown in FIG. 4, the pipe 4 includes a fourth pipe portion 44 extending in the X-axis direction from the tip of the third pipe portion 43, and a pipe extending downward from the tip of the fourth pipe portion 44. and a fifth pipe portion 45 extending. 1 and 4 illustrate a state in which the tip of the fifth pipe portion 45 is connected to the blowout port 32f of the scroll casing 32c, the tip of the fifth pipe portion 45 is actually It is connected to the piping connection port 31g shown in FIG.

FIG. 5 is a perspective view showing a state where blindfold member 2 and ventilation fan 3 according to Embodiment 1 are installed on wall 5 of a building. In FIG. 5, illustration of the pipe 4 is omitted. As shown in FIG. 5 , the blindfold member 2 includes a blindfold portion 21 and a connection portion 22 . The material of the blind portion 21 and the connection portion 22 is metal, for example. The blindfold part 21 is a part installed between the wall 5 and the ventilating fan 3 so as to hide at least part of the pipe 4 connecting the opening 6 and the ventilating fan 3 shown in FIG. The blindfold part 21 covers a part of the pipe 4 located on the wall 5 side of the ventilation fan 3. - 特許庁A connecting portion 22 shown in FIG. 5 is formed separately from the blind portion 21, and is a portion that connects the blind portion 21, the wall 5 of the building, and the ventilation fan 3 to each other. The blindfold part 21 can be fixed to the wall 5 and the ventilation fan 3 via the connecting part 22 .

The blindfold part 21 is installed so as to block the gap between the wall 5 and the range hood 31 of the ventilation fan 3. - 特許庁The blindfold part 21 is installed in contact with the wall 5 and the range hood 31 of the ventilation fan 3. - 特許庁The blindfold part 21 and the ventilation fan 3 are arranged so that the surfaces of the adjacent blindfold part 21 and the range hood 31 of the ventilation fan 3 are flush with each other when the blindfold part 21 is installed between the wall 5 and the ventilation fan 3. A range hood 31 is arranged. In other words, the width dimension of the shield part 21 along the X-axis direction is the same as the width dimension of the range hood 31 of the ventilation fan 3 along the X-axis direction. Further, the height dimension of the blind portion 21 along the Y-axis direction is the same as the height dimension of the range hood 31 of the ventilation fan 3 along the Y-axis direction.

FIG. 6 is a perspective view showing a state where blindfold member 2 according to Embodiment 1 is installed on wall 5 of a building. FIG. 7 is a perspective view showing a state in which the pipe 4 is installed on the wall 5 of the building shown in FIG. FIG. 8 is a plan view showing blindfold member 2 according to the first embodiment. FIG. 9 is a front view showing blindfold member 2 in Embodiment 1. FIG. FIG. 10 is a side view showing blindfold member 2 according to Embodiment 1. FIG. In FIG. 7, only the first piping section 41, the second piping section 42 and the third piping section 43 of the piping 4 are illustrated. As shown in FIGS. 6 and 9, blindfold portion 21 is formed in a substantially rectangular shape that opens to the indoor side and the outdoor side. As shown in FIGS. 6 to 10, the blindfold portion 21 has a blindfold bottom plate portion 21a, a blindfold top plate portion 21b, a first blindfold side plate portion 21c, and a second blindfold side plate portion 21d.

As shown in FIG. 6, the blindfold bottom plate portion 21a is a portion extending in the X-axis direction. The planar view shape of the blindfold bottom plate portion 21a is rectangular. Blindfold bottom plate portion 21 a is located below opening 6 .

The blind top plate portion 21b is a portion intermittently extending in the X-axis direction. The blindfold top plate portion 21b is arranged above the blindfold bottom plate portion 21a and away from the blindfold bottom plate portion 21a. Blindfold top plate portion 21 b is positioned above opening 6 . 21 g of through-holes are formed in the center part along the X-axis direction among the blindfold top-plate parts 21b. As shown in FIG. 7, the second pipe portion 42 is passed through the through hole 21g from bottom to top. The second pipe portion 42 protrudes into the upper space of the blindfold member 2 through the through hole 21g. The shape of the through-hole 21g is not particularly limited as long as the pipe 4 can pass therethrough, but is rectangular in the present embodiment. The blindfold top plate portion 21b is divided into two by a through hole 21g, a first blindfold top plate portion 21e connected to the first blindfold side plate portion 21c, and a second blindfold portion connected to the second blindfold side plate portion 21d. and a top plate portion 21f. The planar view shape of the first blindfold top plate portion 21e and the second blindfold top plate portion 21f is a quadrangle.

As shown in FIG. 6, the first blindfold side plate portion 21c is a portion extending in the Y-axis direction. The side view shape of the first blindfold side plate portion 21c is rectangular. The first blindfold side plate portion 21c connects end portions along the X-axis direction of the blindfold bottom plate portion 21a and the blindfold top plate portion 21b.

The second blindfold side plate portion 21d is a portion extending in the Y-axis direction. The side view shape of the second blindfold side plate portion 21d is rectangular. The second blindfold side plate portion 21d connects the other ends along the X-axis direction of the blindfold bottom plate portion 21a and the blindfold top plate portion 21b.

At the inside corner formed by the first blindfold side plate portion 21c and the blindfold bottom plate portion 21a, and the inside corner formed by the second blindfold side plate portion 21d and the blindfold bottom plate portion 21a, first triangular first is provided with a reinforcing member 21h. In addition, an inside corner formed by the first blindfold side plate portion 21c and the blindfold top plate portion 21b and an inside corner formed by the second blindfold side plate portion 21d and the blindfold top plate portion 21b have triangular shapes when viewed from the front. A shaped second stiffener 21i is provided.

As shown in FIG. 5, the blind top plate portion 21b and the hood top plate portion 31a adjacent to each other are flush with each other. Further, the surfaces of the adjacent first blindfold side plate portion 21c and the first hood side plate portion 31d are flush with each other. The surfaces of the adjacent second blindfold side plate portion 21d and the second hood side plate portion 31e are flush with each other. In this specification, the outer peripheral shape of the blind portion 21 refers to the outer peripheral shape of the blind portion 21 assuming that the through holes 21g are not provided. In the present embodiment, the outer peripheral shape of the blind portion 21 is such that the first blind side plate portion 21c and the second blind side plate portion 21d are formed by the blind top plate portion 21b formed continuously without being divided by the through hole 21g. Refers to the shape of the outer circumference when assumed to be connected. The outer peripheral shape of blindfold part 21 is a quadrangle in the present embodiment. The outer peripheral shape of the blindfold part 21 is the same as the outer peripheral shape of the cooker hood 31 . The outer peripheral dimension of the blindfold part 21 is the same as the outer peripheral dimension of the cooker hood 31 . Specifically, the outer peripheral shape of the blindfold part 21 is the same as the outer peripheral shape of a portion of the cooker hood 31 adjacent to the blindfold part 21 . Moreover, the outer peripheral dimension of the blindfold part 21 is the same as the outer peripheral dimension of the part of the cooker hood 31 adjacent to the blindfold part 21 .

FIG. 11 is a perspective view showing the connecting portion 22 according to the first embodiment. The shape of the connection portion 22 is not particularly limited, but in the present embodiment, it has a hat shape in plan view. The connecting portion 22 includes a first fixing portion 22a fixed to the wall 5 of the building, a second fixing portion 22b fixed to the ventilation fan 3, and the first fixing portion 22a and the second fixing portion 22b. It has a connection portion 22c that connects and a third fixing portion 22d that is fixed to the blindfold portion 21 . In the following description, the direction from one of the first blind top plate portion 21e and the second blind top plate portion 21f to the other is referred to as an inward direction, and the opposite direction is referred to as an outward direction.

As shown in FIG. 6, the first fixing portion 22a is a vertical surface extending along the wall 5 in the X-axis direction. The front view shape of the first fixing portion 22a is rectangular. The first fixing portion 22a is provided across the first blindfold top plate portion 21e and the second blindfold top plate portion 21f. Circular first fixing holes 22e are formed at both ends along the X-axis direction of the first fixing portion 22a. As shown in FIG. 5 , the connecting portion 22 is fixed to the wall 5 by screwing the screw 8 through the first fixing hole 22 e into the wall 5 .

As shown in FIG. 6, the connecting portion 22c is a vertical surface extending from both ends along the X-axis direction of the first fixing portion 22a to the side opposite to the wall 5. As shown in FIG. The side view shape of the connection part 22c is a rectangle. One second fixing portion 22b is arranged on each of the first blindfold top plate portion 21e and the second blindfold top plate portion 21f.

The second fixing portion 22b is a vertical surface that extends outward along the X-axis direction from the tip of the connecting portion 22c along the Z-axis direction. The front view shape of the second fixing portion 22b is a quadrangle. The second fixing portion 22b is arranged at a position away from the wall 5. As shown in FIG. One second fixing portion 22b is arranged on each of the first blindfold top plate portion 21e and the second blindfold top plate portion 21f. A circular second fixing hole 22f is formed in the second fixing portion 22b. As shown in FIG. 5, the end portion of the hood top plate portion 31a facing the wall 5 is provided with a connection fitting 31h that protrudes upward from the hood top plate portion 31a. The ventilating fan 3 is fixed to the connecting portion 22 by screwing the screw 9 through the second fixing hole 22f into the threaded hole of the connection fitting 31h of the ventilating fan 3 .

As shown in FIG. 6, the third fixing portion 22d is a horizontal surface extending inward along the X-axis direction from the lower end portion of the connecting portion 22c. The plan view shape of the third fixing portion 22d is rectangular. The third fixing portion 22d is arranged one each on the first blindfold top plate portion 21e and the second blindfold top plate portion 21f. A circular third fixing hole 22g is formed in the third fixing portion 22d. As shown in FIG. 5 , the connecting portion 22 is fixed to the blind portion 21 by screwing the screw 10 through the third fixing hole 22 g into the screw hole of the blind portion 21 .

Next, a description will be given of the procedure for replacing the propeller ventilation fan (not shown) with the centrifugal fan type ventilation fan.

First, the propeller ventilation fan (not shown) is removed from the opening 6 shown in FIG. 2 to expose the opening 6 .

Subsequently, as shown in FIG. 6 , the blindfold member 2 is installed on the surface of the wall 5 facing the room so as to surround the opening 6 . At this time, since the outer peripheral dimension of the blindfold member 2 is the same as the outer peripheral dimension of the ventilation fan 3, it is determined whether or not the blindfold member 2 interferes with kitchen members such as a hanging cupboard installed around the blindfold member 2. By confirming, whether or not the kitchen member and the ventilation fan 3 interfere with each other can be grasped in advance before the installation of the ventilation fan 3. - 特許庁

Subsequently, the laying work of the pipe 4 shown in FIG. 1 is performed. In the crawling work, the piping 4 is passed through the opening 6 from the outdoor hood 7 and crawled into the blindfold member 2. - 特許庁Further, in crawling work, the pipe 4 is crawled to a connection position with the ventilation fan 3 installed after the crawling work. When the upper space of the blindfold member 2 is wide, the pipe 4 may be routed from the through hole 21g of the blindfold member 2 to the upper space as shown in FIG. After the pipe 4 is laid to the space above the blindfold member 2, the portion of the pipe 4 exposed from the blindfold member 2 can be hidden by covering the upper space with an upper curtain plate (not shown).

Subsequently, as shown in FIG. 5, the ventilating fan 3 is fixed to the blindfold member 2 installed on the wall 5 . Then, the pipe 4 is connected to the pipe connection port 31g of the ventilation fan 3 shown in FIG. By the above procedure, the work of replacing the propeller ventilation fan with the centrifugal fan type ventilation fan is completed.

Next, the effect of blindfold member 2 concerning this embodiment is explained.

In the present embodiment, as shown in FIG. 1, blindfold member 2 includes at least one of pipes 4 connecting opening 6 formed in wall 5 of building and ventilating fan 3 mounted inside the building away from wall 5. A blindfold part 21 which can be installed between the wall 5 and the ventilation fan 3 is provided so as to hide the part. As a result, exposure of the piping 4 in the interior of the building can be suppressed, so that the design of the interior of the building can be improved. Further, in the present embodiment, as shown in FIG. 5, the outer peripheral shape of the blind portion 21 is the same as the outer peripheral shape of the ventilation fan 3, and the outer peripheral dimension of the blind portion 21 is the same as the outer peripheral dimension of the ventilation fan 3. . As a result, since one of the blindfold part 21 and the ventilation fan 3 does not protrude from the other, a sense of unity between the blindfold part 21 and the ventilation fan 3 can be created. Therefore, since the piping 4 can be hidden with good appearance, the interior design of the building can be improved.

In the present embodiment, as shown in FIG. 5, blindfold part 21 can be fixed to ventilation fan 3 via connecting part 22, thereby improving workability when attaching ventilation fan 3 to blindfold member 2. can be done. As a method for installing a centrifugal fan type ventilation fan, it is common to hang the centrifugal fan type ventilation fan on screws or bolts embedded in the wall 5 in advance. If it is embedded in the wall 5, it may be necessary to adjust the positions of the screws and bolts. In the present embodiment, the connecting portion 22 has the second fixing portion 22b fixed to the ventilation fan 3, so that the second fixing portion 22b can be formed during sheet metal processing of the connecting portion 22. FIG. Therefore, the position of the second fixing portion 22b with respect to the wall 5 can be determined with high accuracy, and workability when attaching the ventilating fan 3 to the blindfold member 2 can be improved.

In the present embodiment, as shown in FIG. 6, the blind portion 21 includes a blind bottom plate portion 21a extending in the X-axis direction and a blind top plate portion disposed above the blind bottom plate portion 21a and away from the blind bottom plate portion 21a. 21b. In addition, the blindfold portion 21 includes a first blindfold side plate portion 21c connecting ends of the blindfold bottom plate portion 21a and the blindfold top plate portion 21b along the X-axis direction, and a blindfold bottom plate portion 21a and the blindfold top plate portion 21b. and a second blindfold side plate portion 21d that connects the other end portions along the X-axis direction. Further, a through hole 21g is formed in the blind top plate portion 21b. With these configurations, it is possible to pass the pipe 4 through the through hole 21g of the blind top plate portion 21b, so that the degree of freedom in laying the pipe 4 can be increased.

As shown in FIG. 4, if the ventilating fan 3 is a centrifugal fan type ventilating fan, the blowing direction of the air flow is a direction that passes through a deviated position that does not intersect the rotation axis of the impeller 32b on a plane orthogonal to the air intake direction. becomes. Therefore, in order to exhaust the air flow through the opening 6 of the wall 5 shown in FIG. 1, it is necessary to bend the pipe 4 several times and crawl it, and the crawled pipe 4 is easily visible to the user. In particular, there is a sink or the like on the side of the ventilation fan 3, and the side of the ventilation fan 3 is easily visible to the user on the sink or the like. Therefore, if the portion of the pipe 4 at the same height as the side surface of the ventilation fan 3 is exposed, it may enter the user's field of vision and spoil the aesthetic appearance. In this regard, in the present embodiment, since the first blindfold side plate portion 21c and the second blindfold side plate portion 21d cover the portion of the pipe 4 at the same height as the side surface of the ventilation fan 3 from the side, A comfortable working space for cooking can be created without impairing the aesthetic appearance. In addition, in the present embodiment, as shown in FIG. 5, blindfold portion 21 and ventilating fan 3 have the same outer peripheral shape and outer peripheral dimensions, so that one of blindfold portion 21 and ventilating fan 3 is more likely than the other. Since it does not protrude, a large working space for cooking can be secured.

When fixing the blindfold member 2 to the wall 5 and fixing the blindfold member 2 to the ventilation fan 3 shown in FIG. A problem arises that the blindfold member 2 wobbles when a person performs operations such as operation and cleaning. As a means of avoiding such a problem, there is a method of increasing the plate thickness of each fixing member or adding a reinforcing member in order to increase the strength of each of the plurality of fixing members. Problems such as increased mass and increased manufacturing costs arise. In this embodiment, blindfold member 2 is formed separately from blindfold portion 21 and includes connection portion 22 that connects blindfold portion 21 to building wall 5 and ventilation fan 3 to each other. Moreover, the connecting portion 22 has a first fixing portion 22a fixed to the wall 5 of the building and a second fixing portion 22b fixed to the ventilation fan 3 . That is, since the first fixing portion 22a fixed to the wall 5 of the building and the second fixing portion 22b fixed to the ventilation fan 3 are provided integrally with the connection portion 22, the blind member 2 can be easily fixed to the wall 5. Fixing and fixing of the ventilating fan 3 to the blindfold member 2 can be performed by a single connecting part 22.例文帳に追加As a result, the amount of deformation of the connecting portion 22 can be suppressed, so that the blindfold member 2 is less likely to wobble when the operator performs operations such as operation and cleaning. In addition, in order to further suppress the wobble of the blindfold member 2, it is only necessary to increase the strength of the connecting portion 22. Therefore, compared to the case where a plurality of fixing members are used, the weight of the blindfold member 2 and the manufacturing cost can be reduced. can be achieved.

Embodiment 2.
Next, a ventilation system 1A according to Embodiment 2 will be described with reference to FIGS. 12 and 13. FIG. FIG. 12 is a schematic side view showing a ventilation system 1A provided with blindfold member 2 according to the second embodiment. FIG. 13 is a schematic front view showing ventilation fan 3 and pipe 4A according to the second embodiment. This embodiment differs from the first embodiment in the configuration of the pipe 4A. In addition, in Embodiment 2, the same code|symbol is attached|subjected about the part which overlaps with above-mentioned Embodiment 1, and description is abbreviate|omitted.

As shown in FIG. 12, the pipe 4A includes a first pipe portion 41A extending from the opening 6 along the Z-axis direction on the side opposite to the wall 5, and extending upward from the tip of the first pipe portion 41A. It has a second pipe portion 42A and a third pipe portion 43A extending from the upper end portion of the second pipe portion 42A to the side opposite to the wall 5 along the Z-axis direction. A proximal end portion of the first pipe portion 41A is connected to the opening 6 . Further, as shown in FIG. 13, the pipe 4A includes a fourth pipe portion 44A extending in the X-axis direction from the tip portion of the third pipe portion 43A, and a pipe extending downward from the tip portion of the fourth pipe portion 44A. 45 A of 5th piping parts which extend. The tip of the fifth pipe portion 45A is connected to the outlet 32f of the scroll casing 32c.

As shown in FIG. 12, the pipe 4A is installed inside the cooker hood 31 and inside the blind portion 21 so as not to be exposed indoors. The first pipe portion 41A is installed inside the blindfold portion 21 . The second pipe portion 42A is installed inside the blind portion 21 without protruding into the upper space of the blind member 2 through the through hole 21g. 43 A of 3rd piping parts pass through the through-hole 31i formed in the hood backplate part 31c of the range hood 31, and are installed over the inside of the range hood 31 and the blindfold part 21. As shown in FIG. 44 A of 4th piping parts and 45 A of 5th piping parts are installed in the cooker hood 31. As shown in FIG.

There is a case where the pipe 4 cannot be laid in the space above the blind member 2 because there is a beam of a building in the space above the blind member 2. - 特許庁In such a case, the entire pipe 4A is installed inside the range hood 31 and inside the blind portion 21 as in the present embodiment, and the tip of the pipe 4A is connected to the outlet 32f of the ventilation fan 3 within the range hood 31. should be connected to As a result, since the pipe 4A is not exposed inside the building, the interior design of the building can be improved.

FIG. 14 is a perspective view showing a state in which blindfold member 2 and pipe 4A are installed on building wall 5 in a modification of Embodiment 2. FIG. FIG. 15 is a perspective view showing a ventilation fan 3 in a modified example of the second embodiment. When the pipe 4A does not protrude into the upper space of the blind member 2 through the through hole 21g as in the second embodiment, as shown in FIG. may In such a configuration, as shown in FIG. 14, the piping 4A can have a first piping section 41A, a second piping section 42A and a third piping section 43A. That is, since the fourth pipe portion 44A and the fifth pipe portion 45A can be omitted and the third pipe portion 43A can be connected to the pipe connection port 31g, the total length of the pipe 4A can be shortened. Further, by locating the pipe connection port 31g shown in FIG. 15 within the blindfold portion 21 shown in FIG. As a result, a comfortable working space for cooking can be created without impairing aesthetics.

14 and the pipe connection port 31g shown in FIG. 15, the pipe 4A shown in FIG. The position of the tip of the pipe 4A can be easily adjusted by inserting the hand. In addition, since a hand can be inserted into the blind portion 21 through the through hole 21g of the blind portion 21, a tape for fixing the tip portion of the pipe 4A is wound around the pipe connection port 31g so that the pipe connection port 31g and the tip of the pipe 4A are separated from each other. It is also possible to easily seal the joint with the part.

The configurations shown in the above embodiments are only examples, and can be combined with other known techniques, or can be combined with other embodiments, without departing from the scope of the invention. It is also possible to omit or change part of the configuration. In Embodiments 1 and 2 described above, the outer peripheral shape of the portion of the cooker hood 31 adjacent to the blind portion 21 is quadrangular, but may be polygonal, circular, or triangular other than quadrilateral, for example. The outer peripheral shape of the blind portion 21 may be appropriately changed so as to be the same as the outer peripheral shape of the cooker hood 31 . In the first and second embodiments described above, the blind top plate portion 21b is provided with the through hole 21g, but the through hole 21g may be omitted.

1, 1A ventilation system, 2 blindfold member, 3 ventilation fan, 4, 4A pipe, 5 wall, 6 opening, 7 outdoor hood, 8, 9, 10 screw, 21 blindfold part, 21a blindfold bottom plate part, 21b blindfold top plate part, 21c first blindfold side plate portion, 21d second blindfold side plate portion, 21e first blindfold top plate portion, 21f second blindfold top plate portion, 21g through hole, 21h first reinforcing member, 21i second reinforcement material 22 connecting portion 22a first fixing portion 22b second fixing portion 22c connecting portion 22d third fixing portion 22e first fixing hole 22f second fixing hole 22g third fixing hole 31 cooker hood 31a hood top plate portion 31b hood main plate portion 31c hood back plate portion 31d first hood side plate portion 31e second hood side plate portion 31f intake port 31g pipe connection port 31h Connection fitting 31i Passing hole 32 Centrifugal blower 32a Motor 32b Impeller 32c Scroll casing 32d Shaft 32e Suction port 32f Blow-out port 41, 41A First pipe portion 42, 42A Second pipe portion , 43, 43A third piping section, 44, 44A fourth piping section, 45, 45A fifth piping section.

Claims (5)

A blind part that can be installed between the wall and the ventilating fan so as to hide at least part of a pipe connecting an opening formed in the wall of the building and the ventilating fan installed inside the building away from the wall. prepared,
The outer peripheral shape of the blindfold part is the same as the outer peripheral shape of the ventilation fan,
A blindfold member, wherein the outer circumference dimension of the blindfold portion is the same as the outer circumference dimension of the ventilation fan. 2. The blind member according to claim 1, wherein the blind member can be fixed to the ventilation fan. The blindfold part
a blindfold bottom plate portion extending in a first direction;
a blindfold top plate portion disposed above the blindfold bottom plate portion and away from the blindfold bottom plate portion;
a first blindfold side plate portion connecting end portions of the blindfold bottom plate portion and the blindfold top plate portion along a first direction;
a second blindfold side plate portion connecting the other end portions of the blindfold bottom plate portion and the blindfold top plate portion along the first direction,
3. The blind member according to claim 1, wherein a through hole is formed in the blind top plate portion. A connection part formed separately from the blindfold part and capable of connecting the blindfold part, the wall and the ventilation fan to each other,
The connecting part is
a first fixing part fixed to the wall;
4. The blind member according to any one of claims 1 to 3, further comprising a second fixing portion fixed to the ventilation fan. A ventilation fan having a range hood installed in a building room and a centrifugal fan installed in the range hood to generate an air flow;
a pipe that connects an opening formed in the wall of the building and the ventilation fan and guides the air flow generated by the centrifugal fan to the outside of the building;
and the blind member according to any one of claims 1 to 4 installed between the wall and the ventilation fan so as to hide at least part of the pipe.

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