JP2020051659A - Ventilation hole member - Google Patents

Abstract

To suppress dropping risk of a lower member.SOLUTION: A ventilation hole includes: an indoor side opening for being joined with an air blowing duct; an outdoor side opening disposed on an almost vertical flat surface with respect to a flat surface including the indoor side opening and open vertically downward; an upper member for communicating the indoor side opening with the outdoor side opening; and a tubular lower member elongating the outdoor side opening downward. The lower member includes: a first side surface member; a second side surface member facing the first side surface member; a front member adjacent to the first side surface member and the second side surface member; and a rear member facing the front member and located on a side nearer to the indoor side opening side than to the front member. The first side surface member, the second side surface member and the front member are each provided with a vertically joined flat surface which is a flat surface extending upward from below in the installation state of the ventilation hole member and is locked on the upper member. The rear member is provided with a horizontally joined flat surface elongated toward the indoor side opening from the upper edge side of the rear member and locked on the upper member.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a vent member.

  Conventionally, in an air supply outdoor hood, an air passage is formed by two tubular portions of an upper member fixed to a wall and a lower member joined to the upper member.

JP 2007-255786 A

  Such a conventional air supply outdoor hood is, for example, in order to prevent the intrusion of rain, if the weight of the lower member is increased by attaching a rainproof component to the lower member, the upper member and the lower member There was a problem that the load on the locking member joining the members was increased.

  In view of the above, the present invention is to solve the above-mentioned conventional problems, and aims to reduce the load and the risk of falling by locking the lower member.

  In order to achieve this object, the vent member according to the present invention is disposed on a substantially vertical plane with respect to a plane including the indoor side opening and the indoor side opening for joining to the airflow path, and vertically downward. A vent member having an outdoor opening opening toward the vehicle, an upper member communicating the indoor opening and the outdoor opening, and a tubular lower member extending the outdoor opening downward. Wherein the lower member is a first side member, a second side member facing the first side member, a front member adjacent to the first side member and the second side member, A rear member facing the member and located closer to the indoor side opening side than the front member, wherein the first side member, the second side member, and the front member are in an installed state of the vent member. A flat surface extending from below to above, wherein the upper portion is The rear member has a horizontal joint plane that extends from an upper end side of the rear member toward the indoor side opening and is locked by the upper member. This achieves the intended purpose.

  ADVANTAGE OF THE INVENTION According to this invention, the vent member which reduces the danger of falling of a lower member can be provided.

Schematic diagram showing the state of construction of a vent member according to the present invention in a building Side view of vent member Side view of upper member Perspective view of the upper member viewed from below Perspective view of the lower member viewed from above Perspective view of the vent member viewed from the rear member side Side view of the vent member after joining of the first upper joining hole and the first lower joining hole is released. Sectional view when members are fixed with rivets

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following embodiments are examples embodying the present invention, and do not limit the technical scope of the present invention. Throughout the drawings, the same portions are denoted by the same reference numerals, and the second and subsequent descriptions are omitted.

(Embodiment 1)
Hereinafter, the vent member 1 according to the present invention will be described with reference to FIGS. 1, 2, 3, 4, and 5. FIG. FIG. 1 is a schematic view showing a state in which the vent member 1 is installed in a building, FIG. 2 is a side view of the vent member 1, FIG. 3 is a side view of the upper member 2, and FIG. FIG. 5 is a perspective view of the lower member 3 as viewed from above.

  The vent member 1 is attached to an outer wall surface 20 of a building such as a building or a factory, that is, is disposed outdoors 21. The vent member 1 is joined to one end of a ventilation duct 23 installed near the outer wall surface 20 and penetrating the outer wall surface 20 toward the indoor 22 side. The vent member 1 allows an airflow 25 generated by blowing air from the outdoor 21 to the indoor 22 by a blower 24 installed at the other end of the duct 23, for example. In other words, the vent member 1 constitutes a vent passage 26 which is a part of an air passage from the outdoor 21 to the indoor 22.

  The vent member 1 is divided into an upper member 2 and a lower member 3 in the middle of the ventilation passage 26 as shown in FIG.

  The upper member 2 includes an indoor opening 4 and an outdoor opening 5.

  The indoor side opening 4 has an opening surface, that is, a plane including the indoor side opening 4 is provided in parallel with the outer wall surface 20.

  The outdoor opening 5 is arranged on a plane substantially perpendicular to the opening surface of the indoor opening 4. That is, the outdoor-side opening 5 is arranged with the opening directed vertically downward. The lower member 3 is joined to the outdoor side opening 5 so as to extend the outdoor side opening 5 downward, in other words, to extend the ventilation path 26 downward. That is, the air passage 26 is bent into a substantially L-shape.

  A plurality of upper joint holes 6 are provided near the lower part of the upper member 2, that is, around the opening of the outdoor opening 5, as shown in FIG.

  As shown in FIG. 5, the lower member 3 includes a first side member 7, a second side member 8, a front member 9, and a rear member 10.

  The first side surface member 7 forms one side surface of the lower member 3. In the present embodiment, the first side surface member 7 is defined as a member that is a surface parallel to the paper surface of FIG. 2 and that constitutes a surface located on the near side. The first side surface member 7 has a plate-like substantially square shape, and more specifically, has a trapezoidal shape whose lower surface is inclined downward from the rear member 10 to the front member 9 side.

  The second side member 8 forms a surface facing the first side member 7. The shape is the same as that of the first side surface member 7, and has a trapezoidal shape whose lower surface is inclined downward from the rear member 10 to the front member 9 side.

  The front member 9 is provided adjacent to the first side member 7 and the second side member 8. In the present embodiment, the front member 9 is defined as a member arranged at a position far from the outer wall surface 20 such as a building in FIG.

  As shown in FIG. 5, near the upper part of the first side member 7, the second side member 8, and the front member 9, at the lower end of the upper member 2 when the upper member 2 and the lower member 3 are joined. A plurality of lower joint holes 11 whose center is the same as the upper joint hole 6 is provided. When the upper joint hole 6 and the lower joint hole 11 are joined, a vertical joining plane 13 extending in the vertical direction is formed by the overlapping portions for joining, that is, the axes of the two holes are oriented in the horizontal direction. At this time, the upper joint hole 6 and the lower joint hole 11 used for joining are referred to as a first upper joint hole 6a and a first lower joint hole 11a, respectively.

  The rear member 10 forms a surface facing the front member 9. The upper end of the rear member 10 has a horizontal joint plane 12 extending (bending) from the upper end toward the indoor opening 4. The horizontal joining plane 12 is provided with a plurality of lower joining holes 11 such that when the upper member 2 and the lower member 3 are joined, the upper joining hole 6 and the center of the hole are aligned. When the upper joint hole 6 and the lower joint hole 11 are joined, a surface extending in the horizontal direction is formed, that is, the axes of the two holes are oriented in the vertical direction. At this time, the upper joint hole 6 and the lower joint hole 11 used for joining are referred to as a second upper joint hole 6b and a second lower joint hole 11b, respectively.

  When the upper member 2 and the lower member 3 are locked, the lower member 3 is disposed so as to be located on the inner peripheral side of the outdoor opening 5 of the upper member 2. That is, the vertical joining plane 13 and the horizontal joining plane 12 are located on the inner periphery of the outdoor opening 5 of the upper member 2. A fixing member 14 such as a screw or a rivet is used for joining the upper member 2 and the lower member 3.

  Subsequently, an operation of preventing the lower member 3 from falling in the above configuration will be described with reference to FIGS. FIG. 6 is a perspective view of the vent member 1 as viewed from the rear member 10 side, and omits walls and the like.

  Since the vent member 1 is installed on the outer wall surface 20 of a building such as a building or a factory, it may be installed at a high place. When a strong wind blows, for example, when a typhoon approaches, the wind speed is particularly high in high places, and the vent member 1 receives a strong force due to wind pressure. However, since the surface including the rear member 10 is close to the outer wall surface 20, the wind speed is low, and the force received by the wind is small. In other words, a surface parallel to the first side member 7, the second side member 8, and the front member 9 is easily subjected to a force. Further, since the wind blows along the wall surface, the surface formed by the first side member 7 and the second side member 8 receives a particularly strong force.

  Here, since the inside of the vent member 1 is hollow, the surface received at this time (for example, the force 30 received by the surface including the first side surface member 7) deforms the concave surface into a concave shape. Due to this deformation, the fixing member 14 fixing the first upper joint hole 6a and the first lower joint hole 11a receives stress. However, the plane (fixing member 14) of the second upper joint hole 6b and the second lower joint hole 11b hardly receives the force due to the wind.

  Therefore, when a large force is applied for a long period of time and under the influence of wind, the possibility of breakage in the comparison is high at the joint portion between the first upper joint hole 6a and the first lower joint hole 11a. When this joint is broken, only the joint between the second upper joint hole 6b and the second lower joint hole 11b remains, so that the front member 9 hangs down as shown in FIG. Stops.

  As described above, the horizontal joining plane 12 joined in the vertical direction by the second upper joining hole 6b and the second lower joining hole 11b can maintain the joining firmly even when receiving the force of the wind. In particular, even if the weight of the lower member 3 is increased by attaching a rain-proof component or the like to the lower member 3 for the purpose of preventing rain from entering, it is possible to prevent the lower member 3 from falling. Further, in the state of FIG. 7, the appearance is different from the normal state, so that the surrounding people can notice the abnormality of the ventilation member 1, so that there is a danger that the lower member 3 falls and hits a person below. Possibilities can be reduced.

  The inside dimension of the outdoor opening 5 of the upper member 2 is smaller than the outside dimension of the upper opening 15 of the lower member 3. That is, when the upper member 2 and the lower member 3 are joined, it is desirable that the lower member 3 be joined so that the lower member 3 is arranged inside the upper member 2.

  Thereby, when the rainwater that has dropped from above descends along the joint between the upper member 2 and the lower member 3, it is possible to obtain an effect that it is difficult for rainwater to enter the ventilation path 26 from the joint gap.

  For joining the upper joint hole 6 and the lower joint hole 11, it is desirable to use a mixture of screws and rivets 16 on each surface.

  The operation of the above configuration will be described with reference to FIG.

  Due to the fixing method, the screw is fixed while gradually narrowing the gap between the members to be fixed. However, when vibration or force is applied to the fixing portion of the screw, there is a danger that the screw thread is crushed and the fixing is released. On the other hand, the rivet 16 is less likely to be crushed and unsecured even when vibration or force is applied. However, due to the characteristics of the fixing method, if there is a gap 19 between the members A17 and B18 to be fixed, the fixing is performed with the gap 19 left. When the gap 19 between the members is generated, air leaks from the ventilation path 26 of the ventilation member 1 and there is a problem that raindrops easily enter.

  On the other hand, a screw and a rivet 16 are mixed and used for the joint at each joint surface, that is, for each surface of the first side member 7, the second side member 8, the front member 9, and the rear member 10. Thereby, while the gap 19 is reduced by the screw, even if the screw thread is crushed, the rivet 16 can be fixed to maintain the joint between the first upper joint hole 6a and the first lower joint hole 11a. It is desirable that the locking with the screw and the rivet be performed alternately. Here, “alternate” means that the types of the adjacent fixing members 14 are different, and means an order of rivets, screws, rivets, and so on. This makes it possible to eliminate gaps evenly with screws and then evenly join with rivets.

  In addition, as an order at the time of construction, first, locking with screws is performed for each surface, and then, locking with rivets is performed, so that high-strength bonding can be performed without a gap.

  Further, a fixing method such as spot welding may be used as an alternative to the screw or the rivet. As a result, high-strength bonding can be performed while reducing processing costs and component material costs compared to screws and rivets.

  Since the ventilation member according to the present invention can be used when installing an additional member to equipment having a hole facing downward, it can be considered to be used for all existing ventilation holes in a building.

DESCRIPTION OF SYMBOLS 1 Vent member 2 Upper member 3 Lower member 4 Indoor side opening 5 Outdoor side opening 6a First upper joint hole 6b Second upper joint hole 7 First side member 8 Second side member 9 Front member 10 Rear member 11a First lower Side joint hole 11b second lower joint hole 12 horizontal joint plane 13 vertical joint plane 14 fixing member 15 upper opening 16 rivet 19 gap 20 outer wall surface 21 outdoor 22 indoor 23 duct 24 blower 25 air flow 26 air passage

Claims (6)

An indoor-side opening for joining to the ventilation path, and an outdoor-side opening that is disposed on a plane substantially perpendicular to a plane including the indoor-side opening and that opens vertically downward, the indoor-side opening and the outdoor-side An upper member communicating with the opening;
A tubular lower member extending the outdoor opening downward, and a vent member comprising:
The lower member,
A first side member,
A second side member facing the first side member,
A front member adjacent to the first side member and the second side member,
A rear member facing the front member and located closer to the indoor side opening than the front member,
The first side member, the second side member, and the front member,
A vertical joining plane that is a plane that faces upward from below in the installation state of the vent member and that is locked to the upper member,
The rear member,
A vent member having a horizontal joint plane extending from an upper end side of the rear member toward the indoor side opening and locked by the upper member. The lower member,
The vent member according to claim 1, wherein the vertical joint plane and the horizontal joint plane are positioned and locked on an inner periphery of the upper member at the outdoor opening. The upper member and the vertical joining plane,
3. The vent member according to claim 1, wherein the vent member is locked by a screw and a rivet. Each surface constituting the upper member and the vertical joining plane constituting the lower member,
The vent member according to any one of claims 1 to 3, wherein the vent member is locked with both screws and rivets for each surface. One surface of the upper member and the vertical joining plane in the front member,
The vent member according to any one of claims 1 to 4, wherein the screw and the rivet are alternately arranged and locked. One surface of the upper member and the vertical joining plane in the front member,
3. The vent member according to claim 1, which is locked by spot welding.

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