JP4411259B2 - Ventilation member - Google Patents

Description

  The present invention is a ventilation member, more specifically, as a building ventilation member that ventilates the back of a hut by being installed so as to straddle the ridge portion of the roof surface of the house, or installed under the eaves. The present invention relates to a ventilation member used as an eaves intake / exhaust member or the like that performs intake and exhaust.

  As the ventilation member, for example, one described in Japanese Patent No. 2610342 is known. That is, two plate-like ventilation members 21 (FIG. 4) provided with a large number of ventilation paths 22 that open in the ridge direction are connected so as to exhibit an inverted V-shape.

  In this configuration, in order to prevent rain and snow from dripping onto the attic through the ventilation path during heavy winds, it is necessary to make the length of each ventilation member quite long. The longer the path, the greater the resistance to ventilation and the lowering of ventilation. In addition, there is a problem that the material cost is increased and the weight is increased, so that it is difficult to handle during construction and transportation, and more installation space is required for the length.

  Therefore, a proposal has been made that a rod-like space 32 is provided in the middle portion of the ventilation member 31 without increasing the size so as to eliminate the continuity of the ventilation path, thereby preventing the entry of rainwater or the like (FIG. 5). No. 3277232).

  However, the ventilation surface that defines the rod-shaped space 32 of the ventilation member 31 is planar, and rain and snow flow into the rod-shaped space 32 from each ventilation path under substantially the same conditions. Therefore, even if there is the rod-like space 32, the wind and rain enter the air vent surface on the opposite side without causing a large disturbance in the flow. Therefore, in order to exhibit sufficient water stopping ability in the case of this ventilation member 31, it is necessary to lengthen or provide a plurality of rod-like spaces 32. As a result, the ventilation member 31 must be long. Disappear.

Japanese Patent No. 2610342 Japanese Patent No. 2683109 Japanese Patent No. 3277232

  Since the conventional ventilation member has the above-mentioned problems, the present invention does not have such a problem, that is, has sufficient ventilation performance, is advantageous in cost, and requires less installation space. In addition, it is an object to provide a ventilation member that can efficiently prevent rain and snow, dust, pollen and the like from entering the indoor side.

  Invention of Claim 1 for solving the said subject is the ventilation member formed by arranging the ventilation path which passes through from one end surface to the other end side in length and breadth, The ventilation member has internal space, The above-mentioned The vent surface defining the internal space is in an uneven state.

  Preferably, the ventilation member is configured by stacking plastic plates on which the ventilation paths are arranged. Then, the internal space is formed by dividing the plastic plate of the intermediate layer into two parts at an interval, or the internal space is formed by stacking the plastic plates with appropriately sized square holes. Alternatively, the internal space is formed by punching the stacked plastic plates.

The uneven state of the ventilation surface defining the internal space is such that the length from the one end surface of the plastic plate constituting the intermediate layer to the ventilation surface defining the internal space is not between the plastic plates constituting the intermediate layer. By making the length uniform, or by making the length from the opening surface of one end of the air passage to the opening surface of the internal space non-uniform between the air passages in the plastic plates, or the corner It is formed by making the length of the air flow direction of the holes nonuniform between the plastic plates constituting the intermediate layer .

  The uneven state of the ventilation surface that defines the space is formed on at least one of the upstream side and the downstream side, and preferably in the internal space in order to further enhance the effect of preventing rain, snow, dust, pollen, and the like from entering. A filter is provided.

  The present invention has the above-described configuration, has sufficient ventilation performance, is advantageous in terms of cost, requires less installation space, and efficiently allows rain, snow, dust, pollen and the like to enter the indoor side. There is a deterrent effect.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. In FIG. 1, two ventilation members 1 according to the present invention are combined to form a ridge ventilation member (it is mountain-shaped when used). The ventilation member 1 is formed by arranging a ventilation path 2 extending vertically and horizontally from one end face to the other end face, and an internal space 6 is provided at an intermediate portion thereof, and the ventilation paths 2 on the ventilation face facing the internal space 6 are connected to the internal space. 6 is unevenly projected into the inside.

  Usually, the ventilation member 1 is manufactured by stacking a large number of plastic plates 3 to 5 having the ventilation passages 2 arranged side by side and cutting the plate into a predetermined size with a heat cutter (see Japanese Patent No. 2683109). The uppermost and lowermost plastic plates 3 and 4 are a series from one end to the other end, and the intermediate layer plastic plate 5 is divided into an upstream side and a downstream side. The intermediate layer plastic plate 5 is appropriately spaced between the intermediate layer plastic plate 5 at one end and the opposing intermediate layer plastic plate 5 at the other end. The interval is non-uniform at each stage.

  The upper and lower plastic plates 3, 4 can be arranged so that the air passage 2 is orthogonal to the air passage 2 of the intermediate layer plastic plate 5.

  In this way, after appropriately stacking several plastic plates 3 to 5, both end surfaces are cut vertically or obliquely using a heat cutter (the illustrated example is the latter, which is formed into a trapezoid). During this cutting, the cut end faces A and B are melted, the upper and lower plastic plates 3 to 5 are welded together, and the whole is integrated to form the ventilation member 1. Alternatively, only the intermediate layer plastic plate 5 may be integrated first, and then the upper and lower plastic plates 3 and 4 may be bonded (the same applies to the following embodiments).

  In the ventilation member 1 manufactured in this manner, the intermediate layer plastic plate 5 is separated and disposed at an interval, so that an internal space 6 is formed in the intermediate portion. Turbulent flow is generated in the internal space 6 during strong winds by the air flowing in from the air passages 2 on the upstream end face A irregularly flowing with a time difference. That is, since there is a step at the open ends 5a and 5b in the inner space 6 of the intermediate layer plastic plate 5, the air that has traveled straight through the steps of the intermediate layer plastic plate 5 is shifted to the timing when it flows into the inner space 6. And the air flow is disturbed. As a result, rain and snow, dust, and the like that have flown with the air are prevented from straightly flowing and flowing straight into the ventilation path 2 of the intermediate layer plastic plate 5 in the latter half.

As in the above-described embodiment, as a method for forming a step between the laminated intermediate plastic plates 5 in the internal space 6, other than the square holes of the same or substantially the same size in each intermediate plastic plate 5 It is conceivable that the holes 7 are slightly shifted from each other in the length direction (FIG. 2 ). In this case, since the drilling positions of the square holes 7 are shifted between the plastic plates constituting the intermediate layer , a step as shown in FIG.

  In the above two embodiments, the open ends 5a and 5b in the internal space 6 of each intermediate layer plastic plate 5 are in a horizontal line, and the internal space of each intermediate layer plastic plate 5 in the side view shown in FIG. 6 There are irregularities (steps) at the inner opening ends 5a and 5b.

Instead, the length of each air passage 2 in each plastic plate 5 constituting the intermediate layer, that is, the length from one end opening surface of each air passage 2 to the opening surface to the internal space 6 is made non-uniform, When viewed from above, irregularities 5c and 5d may be formed at the opening end in the internal space 6 of the intermediate layer plastic plate 5 (FIG. 3). In order to achieve such a configuration, a predetermined number of intermediate layer plastic plates 5 are stacked (usually integrated in that case), and then punched from above to form an uneven state, thereby providing an internal space 6. Adopt it.

  In any of the above embodiments, the filter 8 is preferably arranged in the middle of the internal space 6. The filter 8 may be made of resin, fiber, metal, or the like as long as it can capture rain and snow, dust, pollen, etc. without impairing air permeability.

  In any of the above-described embodiments, rain and snow, dust, pollen, etc. that have entered the ventilation path 2 on one side of the ventilation member 1 due to strong wind flow irregularly into the internal space 6, Furthermore, by being trapped by the filter 8, further entry is prevented.

  Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

It is a longitudinal cross-sectional view which shows one Embodiment of the ventilation member which concerns on this invention. It is a cross-sectional view which shows other embodiment of the ventilation member which concerns on this invention. It is a cross-sectional view which shows other embodiment of the ventilation member which concerns on this invention. It is a perspective view which shows the structural example of the conventional ventilation member. It is a disassembled perspective view which shows the other structural example of the conventional ventilation member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ventilation member 2 Ventilation path 3 Plastic plate 4 Plastic plate 5 Intermediate layer plastic plate 6 Internal space 7 Square hole 8 Filter

Claims (10)

  A ventilation member formed by arranging a ventilation path extending from one end surface to the other end side by side in the vertical and horizontal directions, wherein the ventilation member has an internal space, and the ventilation surface that defines the internal space is in an uneven state. A characteristic ventilation member.   The ventilation member according to claim 1, wherein the ventilation plate is configured by stacking plastic plates in which the ventilation paths are arranged side by side. The ventilation member according to claim 2, wherein the internal space is formed by arranging the plastic plate of the intermediate layer in the air flow direction and being spaced apart from each other.   The ventilation member according to claim 2, wherein the internal space is formed by laminating the plastic plates with appropriately sized square holes.   The ventilation member according to claim 2, wherein the internal space is formed by punching the laminated plastic plates. The length from the one end surface of the plastic plate constituting the intermediate layer to the ventilation surface defining the internal space is made nonuniform between the plastic plates constituting the intermediate layer, thereby defining the internal space. The ventilation member according to any one of claims 2 to 5 , wherein an uneven state is formed on the ventilation surface . The length from one end opening surface of the air passage to the inner space opening surface is made uneven between the air passages in each plastic plate, thereby forming an uneven state on the air passage defining the internal space. The ventilation member according to any one of claims 2 to 6 . Irregularity of vent surface demarcating the interior space, according to claim 4 in which the length of the flow direction of air in the rectangular holes are formed by being non-uniform between the plastic plate constituting the intermediate layer Ventilation parts.   The ventilation member according to any one of claims 1 to 8, wherein the uneven state of the ventilation surface that defines the internal space is formed on at least one of the upstream side and the downstream side.   The ventilation member according to any one of claims 1 to 9, wherein a filter is disposed in the internal space.

Images