JP2000008507A - Plug structure for ventilation layer opening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent blowing-in of rain or snow by arranging a net and ventilation member in two sheets of opposite flat plates, the net being folded so as to altenately extend continuously between the two flat plates, the ventilation member being arranged continually in spaces of the folded portions of the net. SOLUTION: Between two sheets of flat plates 2 (an upper flat plate 21 and a lower flat plate 22), a U shaped net 3 and ventilation members 4 are arranged. The net 3 is made of plastic molded product and spaces between the two flat plates 21, 22 are formed of upward opening spaces 51 and downward opening spaces 52. The ventilation members 4 which have such a structure that a plurality of plastic corrugated boards are laminated with a plurality of small holes formed parallely in the longitudinal direction are fitted into the upward opening spaces 51 continually. Accordingly, it is possible to prevent intrusion of a bug or a small animal into the opening portions of the ventilation layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug structure disposed at an opening of a ventilation layer in the ventilation layer construction method in order to prevent insects, small animals, rain and snow from blowing into the opening. is there.

[0002]

2. Description of the Related Art A ventilation layer method is one of the methods for discharging water to the outside without retaining water in a wall. A ventilation layer is provided between a wall as a building body and an outer wall. In addition, a method is provided in which gaps are provided near the lower end of the outer wall, under the eaves, or near the roof eaves, and these gaps are used as air outflow / inlet ports to discharge wet air.

[0003] Further, since the ventilation layer necessarily has a portion that communicates with the outside air, rain and snow, and in some cases, insects and small animals may enter there. When rain or snow enters, the wood rots or the heat insulating function of the heat insulating material is reduced, thereby shortening the life of the house.

[0004] Therefore, a plug structure is generally arranged at the opening of the ventilation layer to prevent the intrusion of the plug structure. There are various types of this plug structure, and various improvements have been made.

[0005]

The main purpose of the plug structure is to prevent intrusion of rain, snow, etc. as described above, but of course, the inflow of air from the opening is sufficient. Must be secured. However, a structure for preventing intrusion of rain, snow, and the like, and a structure for ensuring sufficient inflow of air from the opening are not compatible with each other.

That is, if it is attempted to prevent rain and snow from entering, the amount of air flowing into the plug structure may be so small that it hardly exerts an effect. The product was being manufactured in such a way as to find points. That is, there was no ideal plug structure.

[0007]

Means for Solving the Problems In view of the above points, the present inventor has finally completed the present invention as a result of intensive research. The feature of the present invention is that two opposed flat plates are provided. A plug structure comprising a net body and a ventilation member, wherein the net body is bent to continuously reciprocate between the two flat plates, and the ventilation member is formed by bending the net body. Is arranged intermittently in the gap formed by the

That is, the first feature of the present invention is that the ventilation member is intermittently arranged in a plug structure in which the ventilation member is sandwiched between two flat plates. The use of a "net body" that efficiently performs the "intermittent arrangement" and also contributes to the improvement of the strength of the structure is also an essential element of the present invention.

By intermittently arranging the ventilation members, zones having small ventilation members and zones without small ventilation members alternately exist in the flat plate. Then, even if the wind of rainwater blows into the ventilation member on the inlet side, water drops at the location where the ventilation member is cut, and the rainwater hardly reaches the next ventilation member. Also, it can be said that when the wind hits the next ventilation member, fine droplets of rainwater tend to collect and become water droplets, and when this is repeated, rainwater does not enter the interior at all.

The net body is a member that continuously reciprocates between two flat plates, and there is no particular limitation on the reciprocating form or the material of the net body itself. However, since the body travels from the opening of the main body to the inside while reciprocating, in the case of reciprocation with a narrow pitch, the air resistance increases, making it difficult to introduce outside air, and the material cost increases, which is not preferable. Further, since the net body continuously reciprocates between the two flat plates, the space between the flat plates is defined by the net body. The ventilation member is intermittently arranged in a space defined by the net body. The arrangement is not necessarily required to be adhered to the net body, and if the strength of the net body itself is sufficient or the relationship between the size of the ventilation member and the size of the space is appropriate, for example, if the conditions are aligned, for example, , It is sufficient to put it in every other of the partitioned spaces.

The material and structure of the "venting member" are not limited at all. However, basically, the "venting member" is a member for flowing the air that has reached the main body into the main body and damping rainwater, etc., and is an aggregate of many small holes. In many cases, plastic corrugated cardboard has a shape in which a plurality of plastic cardboards are stacked in the same hole direction.
In the case of the present invention, it is also possible to adopt a nonwoven fabric (usually a nonwoven fabric laminate) instead of plastic. Generally, as the air permeability increases, the rigidity of the nonwoven fabric tends to decrease.However, in the case of the structure of the present invention, there is a net body, and since the net body reciprocates between flat plates. The required stiffness of the structure can thereby be obtained.

Further, the structure of the present invention is disposed inside the opening of the ventilation layer, and the opening of the ventilation layer is located at the lower part of the outer wall, at the intersection between the eaves and the outer wall, at the ridge (top of the large roof). ) Department,
The shape and the like of the structure of the present invention also differ depending on the installation location, but the present invention is not particularly limited to such points. Among them, the structure of the type installed on the top of the large roof conforms to the shape of the “ridge”, and if the two plug structures of the present invention are combined in a V-shape, it can be easily installed on the roof. It is suitable.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the drawings.

FIG. 1 is an exploded perspective view showing an example of a plug structure 1 for a ventilation layer opening according to the present invention (hereinafter referred to as "the present invention structure 1"). 1
Are two flat plates 2 (the upper flat plate 21 and the lower flat plate 2 respectively).
2) and a net member 3 and a ventilation member 4 disposed between the two flat plates 2.

As shown in the figure, the net body 3 is bent in such a manner that "C" s are alternately tied, and is a plastic molded product having shape retention. Since the net 3 has such a structure, the space between the two flat plates 2 of the structure 1 of the present invention is partitioned by the net 3 in the longitudinal direction. That is, the upward space 51 opened upward and the downward space 52 opened downward are the same.
These spaces are arranged alternately.

In this embodiment, the ventilation member 4 has a structure in which a plurality of plastic cardboards are laminated. Therefore, many small holes 45 are formed in parallel with the longitudinal direction. Further, the ventilation member 4 is not bonded to the flat plate 2 or the net body 3, but is simply fitted into the upward space 51.

FIG. 2 shows another example of the ventilation member 4, in which a nonwoven fabric 46 processed into a corrugated plate and a nonwoven fabric 4 in a flat plate shape are shown.
7 are alternately laminated and laminated.
When the nonwoven fabrics 46 and 47 are employed in the structure as shown in the figure, the wall itself forming the small holes 45 has a property of allowing water droplets to adhere but having air permeability. It is suitable. Although not shown, when the porosity of the nonwoven fabric is large and the ventilation capacity required for the ventilation member is sufficient, a structure as shown in this figure in which the nonwoven fabric is laminated along the direction of ventilation to form the small holes 45 is used. Instead, the shape may be such that each nonwoven fabric blocks the ventilation, in other words, the ventilation depends on the material itself.
In this case, the required number of nonwoven fabrics is generally small.

FIG. 3 shows a structure in which the two structures 1 of the present invention shown in FIG.
FIG. 2 is a schematic cross-sectional view showing a use state of a plug structure for a large roof ridge having a shape bent at the center). The outside air W blown into one (the left side in the figure) of the present invention structure 1 flows into the other (the right side in the figure) the present invention structure 1 after passing through the ventilation member 4. The connecting portion of the two structures 1 of the present invention is separated from each other with respect to the lower flat plates 22 and communicates with the attic space L here. The air in the attic space L is drawn into the structure 1 of the present invention in accordance with Bernoulli's law and discharged from the structure 1 of the present invention on the right side.

The ventilation member 4 of the structure 1 of the present invention is intermittently arranged, and in the case of this embodiment, is composed of three small members (41, 42 and 43). Therefore, the entering outside air W first enters the interior after the collision with the first rising portion 31 of the net body 3. Even if the outside air W is mixed with rain, at this stage, some raindrops adhere to the rising portion 31 and fall to the lower flat plate 22.

Subsequently, the outside air W is introduced into the small member 41 which is the first ventilation member 4 arranged in the first space (first section A) of the space defined by the net body 4. Each of the small members 41 to 43 constituting the ventilation member 4 of this example has a structure in which a plurality of plastic cardboards are stacked. In this case, the outside air W passes through the small holes 45. When the outside air W is mixed with rain, some of the water adheres to the inner wall of the small hole 45 as water droplets and reaches the end of the small member 41 as the outside air W moves. The outside air W that has exited the end portion flows into the second section B after colliding with the second rising portion 32 of the net body 3. Since the second section B is a space where no small member or the like is present and has a sudden increase in cross-sectional area, the flow rate of the outside air W decreases, and the ability of the outside air W to hold water droplets correspondingly decreases. Therefore, in the second section B, some of the water drops fall on the lower flat plate 22.

The outside air W thus passes from the first section A to the fifth section E and exits the structure 1 of the present invention. Naturally, when it comes out, it contains almost no water droplets.

[0022]

As described above in detail, the plug structure for an air-permeable layer opening according to the present invention comprises:
A plug structure comprising a net body and a ventilation member, wherein the net body is bent to continuously reciprocate between the two flat plates, and the ventilation member is formed by bending the net body. Are intermittently arranged in the void formed by
This is a very advanced invention having various effects as described below.

Since the ventilation hole is not continuous from the inlet to the outlet and has a gap in the middle thereof, the blown rainwater or the like stops in the gap and does not reach the inside. Even if each ventilation hole is somewhat large, the high water stopping performance can be maintained, so that the entry of rainwater or the like can be prevented without impairing the ventilation performance. Since the heavy member such as the ventilation member is intermittently arranged, it is easy to reduce the weight, and it is easy to improve the raw material cost and the workability at the site. If the strength of the net body is increased, it is easy to adopt a nonwoven fabric which is lightweight and has high air permeability but low strength against deformation as a material of the ventilation member.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an example of a plug structure for a ventilation layer opening according to the present invention.

FIG. 2 is a schematic perspective view showing another example of the ventilation member of the plug structure for a ventilation layer opening according to the present invention.

FIG. 3 is a schematic cross-sectional view showing an example of a use state of the plug structure for an air-permeable layer opening according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vent structure opening plug structure 2 Flat plate 21 Upper flat plate 22 Lower flat plate 3 Net body 31 First rising part 32 Second rising part 4 Vent member 41 Small member 42 Small member 43 Small member 45 Small hole 46 Non-woven fabric ( 47 corrugated sheet) 47 Non-woven fabric (flat plate) 51 Upward space 52 Downward space L Attic space W Open air A First section B Second section C Third section D Fourth section E Fifth section

Claims (2)

[Claims] 1. A plug structure comprising a net and a ventilation member disposed in two opposing flat plates, wherein the net is bent so as to continuously reciprocate between the two flat plates. The vent structure, wherein the ventilation member is intermittently disposed in a gap formed by bending the net body. 2. The plug structure according to claim 1, wherein the ventilation member is a nonwoven fabric.