JP2005180781A - Exhaust hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exhaust hood that prevents disengagement between a base part and a hood part and resulting rattling. <P>SOLUTION: The exhaust hood 1, which is installed for example on the wall surface of a building, includes the base part 2 for mounting on the wall surface and the hood part 3 that is mounted to cover the front of the base part 2. At least one of the base part 2 or the hood part 3 is provided with a support part 21 and the other is provided with a supported part 31. At least one of the support part 21 or the supported part 31 is provided with an elastically deforming part 41 and the other is provided with a deformation-inducing part 32 for causing deformation of the elastically deforming part 41. The elastically deforming part 41 deformed by the deformation-inducing part 32 holds the base part 2 and the hood part 3 in secure engagement. This prevents rattling between the base part 2 and the hood part 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an exhaust hood that is arranged at the front end portion of an exhaust path provided for exhausting air from the inside of a building and is installed on a wall surface of the building.

JP 2001-235196 A JP 2002-130757 A

  Conventionally, in order to ventilate a room, an exhaust hood that is arranged on a wall surface and used at the front end portion of an exhaust passage provided so as to penetrate a wall of a building has been widely used. In this exhaust hood, as an exhaust hood having a structure in which a base portion attached to a wall surface and a hood portion arranged so as to cover the base portion are separable, JP 2001-235196 A "Outdoor grill" (patent Document 1), Japanese Patent Application Laid-Open No. 2002-130757, “Ventilation Hood” (Patent Document 2), and the like are disclosed.

As a method of attaching the hood part to the base part in these conventional exhaust hoods, the one described in Patent Document 1 described above is a hook-like engagement formed on the hood part on the outer peripheral part of the base part. This is by hooking the portion, and the one described in Patent Document 2 is by fitting the engaging protrusion formed on the hood portion into the groove-shaped locking portion formed on the base portion.
As described above, both are attached to the base portion so as to fit a part of the hood portion.

However, in these conventional exhaust hoods, since the hood portion is simply fitted and engaged with the base portion, the engagement is loosened between the base portion and the hood portion, and rattling occurs. In some cases, the loose hood portion resonates with exhaust pressure, wind, or the like, thereby generating abnormal noise.
In addition, if the hood part becomes loose, the hood part may fall off the base part. For example, in the event of a typhoon, the hood part may fall off and scatter, causing danger to the surroundings. There was also.

  In view of the above problems, an object of the present invention is to provide an exhaust hood in which engagement between the base portion and the hood portion is loosened and rattling or the like does not occur.

  In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is arranged at the front end portion of the exhaust passage D provided for exhausting the air from the inside of the building, and the wall surface of the building In order to prevent wind and rain from entering the exhaust passage D, and a base portion 2 whose back side is connected to the exhaust passage D, and the base portion 2, and a hood portion 3 that is detachably attached so as to cover the front side of the hood 2. The base portion 2 is provided with a support portion 21 for detachably supporting the hood portion 3. A supported portion 31 supported by the support portion 21 is provided, an elastic deformation portion 41 is provided on at least one side of the support portion 21 and the supported portion 31, and on the other side. The elastic deformation part 41 is changed. Deformation caused unit 32 for causing to provide an exhaust hood, characterized in that provided.

  In the invention according to claim 2 of the present application, in the invention according to claim 1, the base portion 2 is provided with a biasing member 4 formed by bending a steel plate, and at least a part of the biasing member 4 is provided. Is the elastic deformation portion 41, and the hood portion 3 is provided with the insertion piece 32 as the deformation inducing portion, and the support portion 21 of the base portion 2 is supported by the supported portion 31 of the hood portion 3. The exhaust hood is characterized in that the elastic deformation portion 41 is deformed and presses the insertion piece 32 when the insertion piece 32 comes into contact with the elastic deformation portion 41 when the insertion piece 32 is supported.

  Further, the invention according to claim 3 of the present application is arranged at the front end portion of the exhaust passage D provided for exhausting air from the inside of the building, and is installed on the wall surface of the building. The hood 1 is attached to a wall surface, and the back side of the hood 1 covers the front side of the base part 2 in order to prevent the rain and rain from entering the exhaust part D and the base part 2 connected to the exhaust path D. The hood part 3 is detachably attached as described above, and a support part 21 for supporting the load of the hood part 3 is provided on the upper part of the base part 2, and the hood part 3 is provided with the support part 21. A supported portion 31 to be supported is provided, and an insertion piece 32 is provided on the supported portion 31, and the insertion piece 32 of the supported portion 31 can be attached to and detached from the support portion 21 of the base portion 2. Plug-in configuration space for pivotable configuration By providing 2a, when the hood part 3 is attached to the base part 2, the hood part 3 is supported so as to be rotatable about the supported part 31 with respect to the base part 2. Provide exhaust hood.

  In the invention described in claim 1 or 2 of the present application, the engagement between the base portion and the hood portion is held without loosening by the elastic deformation portion deformed by the deformation inducing portion (insertion piece). Thereby, rattling does not occur between the base portion and the hood portion.

  In the invention according to claim 3 of the present application, since the hood portion is supported so as to be rotatable about the supported portion with respect to the base portion, the attaching operation of the hood portion to the base portion is high. Even if it is a place work, it can be easily attached and can be worked safely.

  Hereinafter, an example of implementation of the present invention will be described with reference to the drawings. FIG. 1 is a perspective explanatory view showing the appearance of the exhaust hood of this example, FIG. 2 is a perspective explanatory view showing a state where the base portion and the hood portion are separated, and FIG. 3 is an explanatory view in an end view showing the inside. It is.

  The exhaust hood 1 according to the present invention is provided on the wall surface of a building such as a home or a building, and is an opening on the wall surface, which is the front end portion of the exhaust passage D extending from the inside of the building to the wall surface through the inside of the wall. It is provided in the part.

The exhaust hood 1 of this example includes a base portion 2 and a hood portion 3.
The base portion 2 has a plate-like wall fixing plate 23 and an air guide pipe 24 located on the back side of the wall fixing plate 23. The air guide pipe 24 is arranged in the exhaust path D on the wall surface of the building. Connect by letting go.
The wall surface fixing plate 23 is provided with a bolt hole 23a. By attaching a bolt or the like to the wall surface fixing plate 23, the wall surface fixing plate 23a can be fixed in close contact with the wall surface.
The periphery of the wall surface fixing plate 23a is raised to the front side. The upper part of the raised part is the support part 21. An insertion hole 22 is formed in the support portion 21. Along with the formation of the insertion hole 22, the base portion 2 in a state where the insertion piece 32 formed in the hood portion 3 is coordinated with respect to the insertion piece coordination space 22 a formed in the base portion 2. The hood part 3 is supported by the base part 2 by placing the hood part 3 on the support part 21.

An urging member 4 is provided on the upper portion of the base portion 2.
In this example, as shown in FIG. 3B, the urging member 4 is a steel plate formed in a substantially U-shaped cross section, and the fixing portion 41, the intermediate portion 42, and the action portion 43 are respectively provided. It is formed continuously. In this example, the fixing portion 41 is fixed to the base portion 2 by a rivet 4a, and the intermediate portion 42 is arranged below the front side of the fixing portion 41. And the action part 43 is coordinated so that it may extend upwards from the front side front end of the intermediate part 42. Thus, by fixing the urging member 4 to the base portion 2, the insertion piece coordination space 22 a is surrounded by the fixing portion 41, the intermediate portion 42, and the action portion 43 in the urging member 4. Matches the space.
Unlike the present example, the urging member 4 may be formed integrally with the base portion 2.

In this urging member 4, the intermediate portion 42 and the action portion 43 other than the fixed portion 41 fixed to the base portion 2 are flexible, and when the intermediate portion 42 and the action portion 43 are deformed. Emergence.
In this example, the distal end portion of the action portion 43 is bent into a substantially “<”-shaped cross section as the contact lower surface 43 a and the contact upper surface 43 b, and the contact lower surface 43 a and the contact upper surface 43 b The protruding portion that is the boundary serves as a contact portion 43 c for contacting the insertion piece 32 of the hood portion 3.
The abutting portion 43c is not limited to the form of this example as long as it abuts against the hood portion 3 by the urging force generated by the urging member 4 and presses it in a predetermined direction with the pressing force P. Implementation is possible in the form. For example, a protrusion may be attached to a part of the action part 43, or the whole action part 43 may be used as a contact part 43 c to make surface contact with the insertion piece 32. Moreover, it is good also as what contact | abuts indirectly through another member, without making the contact part 43c and the food | hood part 3 contact directly.

The hood part 3 is coordinated so as to cover the front side of the base part 2. Specifically, as shown in FIG. 2, the upper surface 31, the front surface, and the left and right side surfaces are closed, and the lower portion (shown on the right side in FIG. 1) is opened as an opening 33. In addition, a bird net 33a is attached to the lower open portion as shown in FIG. 1 so that birds or the like do not enter the exhaust hood or the exhaust passage to form a nest.
As shown in FIG. 2, a part of the upper surface 31 of the hood part 3 is bent downward, and the part is an insertion piece 32. This insertion piece 32 is arranged in the insertion piece arrangement space 22 a in the base portion 2 described above and abuts against the urging member 4.
The insertion piece 32 functions as a deformation inducing portion for the abutting portion 43 c of the urging member 4 provided in the base portion 2. That is, when the insertion piece 32 is arranged in the insertion piece arrangement space 22 a of the base portion 2, the action portion 43 of the biasing member 4 is pushed to the front side by the insertion piece 32. In other words, the urging member 4 is deformed so that the U-shaped cross section of the urging member 4 is widened, and the urging member 4 generates a pressing force P that is a repulsive force to return to the original shape. Since the contact portion 43 c of the urging member 4 and the insertion piece 32 are in contact with each other, the pressing force P is transmitted from the contact portion 43 c to the insertion piece 32. Thereby, the hood part 3 is fixed when the insertion piece 32 contacts the back side inner surface 22b of the insertion hole 22 or the back side end part 34 of the hood part 3 contacts the wall surface of the building. Therefore, rattling does not occur between the base portion 2 and the hood portion 3, and vibration noise that has conventionally been generated due to this rattling or the hood portion 3 falls off the base portion 2. Accidents can be prevented.

  Further, in the upper part of the exhaust hood 1, it is not necessary to provide fastening means such as screws, and it is only necessary to hook the insertion piece 32 of the hood part into the insertion hole 22 of the base part 2. The operation of attaching the hood portion 3 to 2 can be simplified, and the operation can be performed safely even when the work is performed at a high place.

In this example, the urging member 4 is formed in a substantially U-shaped cross section by bending a steel plate, but a part of the urging member 4 or a member interlocked by the urging member 4 (in this example) As long as a part of the hood part 3 (the insertion piece 32 in this example) is pressed by the abutting part 43c), other forms such as a substantially “V” shape or a “U” shape may be used. Various urging means such as a leaf spring, a coil spring, and an elastic body made of resin can be used.
Further, the direction in which the urging member 4 urges the insertion piece 32 is not limited to the direction in which the hood portion 3 is in close contact with the base portion 2 as in this example, and the hood portion 3 is separated from the base portion 2. The hood portion 3 may be fixed by pressing the insertion piece 32 against the front side inner surface 22c of the insertion hole 22, which is biased in the direction and is opposite to the present example.

Fastening means 5 is provided as a fixing means for the base portion 2 and the hood portion 3. In this example, a screw for penetrating and fixing both is provided as the fastening means 5 in the lower portions of the left and right side surfaces. ing. Therefore, the base part 2 and the hood part 3 are supported so that the engagement between the base part 2 and the hood part 3 is not loosened by the biasing means 4 in the upper part, and the fastening means in the lower part. According to 5, it can be firmly fixed while maintaining a state in which loosening between the two is prevented.
Here, the fastening means 5 is not limited to the screw as in the present example, but may be a structure in which a protrusion is fitted into the groove-like locking portion as conventionally done.

Here, in this example, when attaching the hood part 3 to the base part 2, first, the insertion piece 32 of the hood part 3 is inserted into the insertion hole 22 formed in the upper part of the base part 2. It coordinates to the embedded piece coordination space 22a. In this case, the urging member 4 is pressing the insertion piece 32 as described above. However, since the urging member 4 is not fixed, the hood portion 3 is shown in FIG. It can be rotated in the direction of the arrow R shown in FIG. And the lower part of the hood part 3 is made to correspond to the base part 2, and the hood part 3 is fixed to the base part 2 using the fastening members 5, such as a screw.
Here, in this example, since the insertion piece 32 of the hood portion 3 is pressed against the abutting portion 43c of the biasing member 4 as described above, the hood portion 3 is naturally connected to the base portion 2. Match. Therefore, the fastening member 5 can be attached smoothly.
In this way, the hood part 3 can be temporarily attached to the base part 2 by first hooking the upper part of the hood part 3 on the base part 2, so that the attachment work becomes a high place work. Even if it is, it can be easily attached and can be safely operated.

The exhaust hood 1 according to the present invention is not limited to the form taken up as this example, and can be implemented with various modifications.
In this example, the hood portion 3 that is a substantially rectangular parallelepiped is attached to the base portion 2 having a substantially square front view, but the entire hemisphere is matched to the design of the building to which the exhaust hood 1 is attached. Or a polyhedral shape.
Further, in this example, the support portion 21 and the urging means 4 are formed on the upper portion of the base portion 2, and the insertion piece 32 is formed on the hood portion 3, but the installation place of the exhaust hood 1 is a narrow place. In the case where there is a restriction on the operation related to the attaching work of the hood part 3, these may be formed on the side part or the lower part of the exhaust hood 1.
Contrary to this example, the urging member 4 may be attached to the hood part 3 or both the base part 2 and the hood part 3, and various modifications can be made.

It is a perspective explanatory view of the back side which shows the appearance of the exhaust hood concerning an example of the embodiment of the present invention, and is illustrated so that the lower part of the exhaust hood faces the right side. In the exhaust hood of this example, it is perspective explanatory drawing which shows the state which isolate | separated the base part and the hood part. It is explanatory drawing of the end view which shows the inside of the exhaust hood of this example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exhaust hood 2 Base part 21 Support part 22a Insertion piece arrangement | positioning space 3 Hood part 31 Supported part 32 Deformation induction part, Insertion piece 4 Energizing member 41 Elastic deformation part D Exhaust path

Claims (3)

In the exhaust hood (1) installed on the wall of the building, etc., which is arranged at the tip of the exhaust passage (D) provided for exhausting the air from inside the building,
A base part (2) that is attached to the wall surface and whose back side is connected to the exhaust path (D);
In order to prevent wind and rain from entering the exhaust passage (D), a hood portion (3) detachably attached so as to cover the front side of the base portion (2),
The base part (2) is provided with a support part (21) for removably supporting the hood part (3), and the hood part (3) is supported by a support part (21) supported by the support part (21). 31) is provided,
An elastic deformation part (41) is provided on at least one side of the support part (21) and the supported part (31), and the elastic deformation part (41) is deformed on the other side. An exhaust hood characterized in that a deformation inducing portion (32) is provided. The base part (2) is provided with a biasing member (4) formed by bending a steel plate,
At least a part of the urging member (4) becomes the elastic deformation part (41),
The hood part (3) is provided with an insertion piece (32) as the deformation inducing part,
When the supported portion (31) of the hood portion (3) is supported by the support portion (21) of the base portion (2), the insertion piece (32) abuts on the elastic deformation portion (41), The exhaust hood according to claim 1, characterized in that the elastic deformation part (41) is deformed and presses the insertion piece (32). In the exhaust hood (1) installed on the wall of the building, etc., which is arranged at the tip of the exhaust passage (D) provided for exhausting the air from inside the building,
A base part (2) that is attached to the wall surface and whose back side is connected to the exhaust path (D);
In order to prevent wind and rain from entering the exhaust passage (D), a hood portion (3) detachably attached so as to cover the front side of the base portion (2),
A support part (21) for supporting the load of the hood part (3) is provided on the upper part of the base part (2), and the supported part supported by the support part (21) is provided on the hood part (3). (31) is provided,
An insertion piece (32) is provided on the supported portion (31), and the insertion piece (32) of the supported portion (31) can be attached to and detached from the support portion (21) of the base portion (2). By providing the insertion piece coordination space (22a) for the movable coordination, when the hood part (3) is attached to the base part (2), the hood part (3) An exhaust hood characterized by being supported so as to be rotatable about a supported portion (31) with respect to 2).

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