JP4168948B2 - External wall ventilation structure - Google Patents

Description

  The present invention relates to an outer wall ventilation structure. More specifically, the present invention relates to an outer wall ventilation structure that is interposed in an air flow path formed between a housing of a building and an outer wall panel to ensure air permeability and function as a curtain.

Conventionally, in a building in which an outer wall panel such as a sizing material is attached to a casing, a gap between the casing and the outer wall panel is an air flow path. On the other hand, a joint plate between the outer wall panel surface on the upper floor and the outer wall panel surface on the lower floor is usually attached in a lateral direction with a substantially U-shaped side plate to cover the joint surface, and the air flow path is Natural air is ventilated by the air that flows through the vents installed in the curtain. This natural ventilation prevents dew condensation in the walls and prevents the decay of building materials, and the curtain can be used as a lateral accent to improve the design. The technology has been proposed.
Japanese Patent Laid-Open No. 5-33401 (page 1-3, FIG. 1) Japanese Patent Laid-Open No. 9-203132 (page 1-3, FIG. 1) Japanese Patent Laid-Open No. 11-229513 (page 1-4, FIGS. 1-2 and 4)

  However, it is difficult to say that sufficient ventilation can be ensured even if the outer wall ventilation structure described in the above prior art is used, and improvement of the ventilation of the entire outer wall, for example, the entire outer wall of the first and second floors is required. . An object of the present invention is to solve the above problems and provide an outer wall ventilation structure that is excellent in air permeability, can be detachably attached to a curtain plate, and is excellent in design.

In order to solve the above problems, the present invention takes the following technical means. That is, according to the present invention, the ventilation structure provided above the air flow path formed between the housing and the outer wall panel, the ventilation structure comprises a curtain plate and a mounting bracket fixed to the housing, The curtain plate includes a front decorative portion, an upper surface cover portion extending from the front decorative portion, an exhaust passage, and a lower surface cover portion, and the exhaust passage extends from the back surface and the lower surface cover portion of the front decorative portion. And a side vent provided on the side wall of the exhaust path for discharging the air in the air flow path to the outside and a lower exhaust port provided on the lower surface of the exhaust path. The lower surface cover portion covers the upper end portion of the outer wall panel with a certain space, communicates the air flow passage and the exhaust passage, and the curtain plate is detachably attached to the mounting bracket. Provided with outer wall ventilation structure featuring That.

  The mounting bracket includes an upper locking portion that engages with an engagement piece projecting downward at an end portion of the upper surface cover portion at an upper end portion thereof, and an end portion of the lower surface cover portion at a lower end portion thereof. It is preferable to provide a lower locking portion that engages with an engaging portion that extends upward. Moreover, it is preferable that the housing contact piece that contacts the housing extends upward from the end portion of the upper surface cover portion along the length direction of the curtain plate.

  An air passage formed between the housing and the outer wall panel attached to the upper floor is provided with a discharge port for discharging air flowing downward from above at regular intervals, and is in contact with the lower end portion of the outer wall panel. It is preferable that the exhaust portion protrudes from the end portion of the upper surface cover portion along the length direction of the curtain plate.

  It is preferable that the curtain is made of a synthetic resin having elasticity. For example, various kinds of synthetic resins capable of elastic deformation and elastic recovery such as hard vinyl chloride resin, polypropylene, ABS resin, and polycarbonate resin are preferably used.

  The invention according to claim 1 is as described above, and a concave exhaust path is vertically provided at the lower back of the front decorative portion, and a side vent and a lower exhaust are provided in the exhaust path. The air flowing upward from the base part through the air flow path formed between the housing and the outer wall panel is secured at the lower surface cover part, and flows into the exhaust path through the side vents, and the lower exhaust. It is discharged from the mouth to the outside. Therefore, since the back side of the outer wall panel can be kept in a well-ventilated and dry state, generation of mold and corrosion can be suppressed, and it can be preferable in terms of hygiene and building maintenance.

  The mounting bracket includes an upper locking portion and a lower locking portion at the upper end portion and the lower end portion, respectively, and these locking portions are detachable from a downward engaging piece and an upward engaging portion attached to the curtain plate. Can be locked. Therefore, the curtain plate itself can be freely attached to and detached from the mounting bracket, can be attached with good workability, and can be easily removed in the case of renovation or the like.

  Since the casing contact piece that contacts the casing extends upward from the end of the upper surface cover portion along the length direction of the curtain plate, the casing contact piece exactly contacts the casing. Rainwater or the like can be prevented from entering the curtain, and the design can be improved with a clean form of the parting portion.

  Further, an exhaust part projects from the end of the upper surface cover part along the length direction of the curtain, and this exhaust part forms an air flow path with an outer wall panel attached to the upper floor, The air that has flowed upward in the flow path, for example, downward from the eaves top, is discharged from a discharge port that is provided horizontally at a certain interval in the exhaust. As a result, the air that has flowed upward from the base portion is discharged from the above-described exhaust passage that is recessed in the lower part of the back surface of the front decorative portion, and the air that has flowed downward from the eaves top portion is Since it is discharged from the exhaust section, the air permeability of the entire outer wall surface of the upper floor and the lower floor can be improved.

  By forming the curtain plate from a synthetic resin having elasticity, the curtain plate can be elastically deformed and attached to the mounting bracket with good workability. Moreover, when removing by renovation etc., it can remove easily if the elastic latching is cancelled | released.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side sectional view showing a first embodiment in which the outer wall ventilation structure according to the present invention is applied to a building in which the outer wall of the second floor is painted and the outer wall panel is attached only to the first floor frame. As shown in FIG. 1, the outer wall ventilation structure is provided above an air flow path 4 formed between a housing K and an outer wall panel 3 on the first floor, and is a curtain made of a synthetic resin having elasticity. It consists of a plate 1 and a mounting bracket 2 fixed to the housing K with fixing screws B. FIG. 2 is a partially cutaway perspective view showing the curtain plate 1 shown in FIG.

  As can be clearly understood from FIGS. 1 and 2, the curtain plate 1 includes a front decorative portion 11, an upper surface cover portion 12 extending from the upper portion of the front decorative portion 11 toward the housing K, and a lower surface cover portion 13. The exhaust passage 14 is provided in a concave shape between the back surface of the front decorative portion 11 and the hanging portion from the lower surface cover portion 13 and extends in the length direction of the curtain plate 1. The lower surface cover portion 13 covers the air flow path 4 with a certain space at the upper end portion of the outer wall panel 3. The air flow path 4 communicates with the exhaust path 14 via a side vent 141 provided at regular intervals on the side wall of the exhaust path 14. Accordingly, the air that has moved up from the base portion in the air flow path 4 smoothly flows into the exhaust path 14 via the upward arrow and the left arrow shown in FIG. 1, and the lower exhaust provided on the lower surface of the exhaust path 14. It is discharged from the mouth 142 to the outside. On the other hand, a housing attachment piece 122 extends upward from the end portion of the upper surface cover portion 12 and is provided along the length direction of the curtain plate 1.

  The mounting bracket 2 is provided with an upper locking portion 21 that engages with a downward engagement piece 121 extending at the end of the upper surface cover portion 12 at the upper end portion, and at the lower end portion of the lower surface cover portion 13. A lower locking portion 22 that engages with an upward engagement portion 131 that extends at an end portion is provided, and is firmly fixed to the housing K with a fixing screw B. With this configuration, the curtain plate 1 that is elastically deformed can be attached to the mounting bracket 2 with good workability, and can be easily removed.

  FIG. 3 is a side sectional view showing a second embodiment in which an outer wall ventilation structure according to the present invention is applied to a building in which outer wall panels are attached to the entire first and second floor housings. 4 is a partially cutaway perspective view showing the curtain plate 1 shown in FIG. As can be seen from FIGS. 3 and 4, in the second embodiment, an exhaust portion 5 protrudes from the end portion of the upper surface cover portion 12 of the curtain plate 1 in the first embodiment. The discharge ports 51 are horizontally provided at regular intervals in the vertical direction, and are in contact with the lower end portion of the outer wall panel 31 mounted on the second floor. By configuring in this way, the air that has moved downward from the eaves top in the air flow path 41 formed between the housing K and the outer wall panel 31 is retained as indicated by the downward arrow shown in FIG. It flows without being discharged from the discharge port 51.

  Since it is configured as described above, in the second embodiment, the air from the base portion moves upward and is discharged to the outside through the exhaust passage 14 already provided in the curtain plate 1. The air that has moved downward from the eaves is discharged from the discharge port 51. Therefore, the air permeability of the entire rear surface side of the outer wall panels 3 and 31 is improved, and it is possible to maintain a dry state. Generation | occurrence | production and corrosion of mold | fungi can be suppressed and it can be set as a favorable environment also on hygiene and the maintenance of a building.

  The side vent 141 and the outlet 51 described above are shown as independent holes, but may be cutout holes. Moreover, it is not restricted to an independent hole and a notch hole, It is good also as a slit. The curtain plate 1 is not limited to a synthetic resin having elasticity, and may be formed from a coated steel sheet having elasticity. As described above, the present invention can be modified in various ways, and is included in the technical scope of the present invention without departing from the scope of the claims.

It is a sectional side view showing the outer wall ventilation structure concerning a 1st embodiment of the present invention. It is a partially cutaway perspective view showing the curtain shown in FIG. It is a sectional side view which shows the outer wall ventilation structure concerning 2nd Embodiment of this invention. FIG. 4 is a partially cutaway perspective view showing the curtain shown in FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Curtain board 11 Front face decoration part 12 Upper surface cover part 121 Downward engagement piece 122 Housing | casing contact piece 13 Lower surface cover part 131 Upward engagement part 14 Exhaust path 141 Side air vent 142 Lower exhaust port 2 Mounting bracket 21 Upper latch part 22 Lower locking part 3 1st floor outer wall panel 31 2nd floor outer wall panel 4 Air flow path formed on the back surface of the 1st floor outer wall panel 41 Air flow path formed on the back surface of the 2nd floor outer wall panel 5 Exhaust section in the second embodiment 51 Discharge port B Fixing screw K Housing

Claims (5)

A ventilation structure provided above an air flow path formed between a housing and an outer wall panel, the ventilation structure comprising a curtain plate and a mounting bracket fixed to the housing, wherein the curtain plate includes a front decorative part And an upper surface cover portion extending from the front decorative portion, an exhaust passage, and a lower surface cover portion, and the exhaust passage is provided in a concave shape with the back surface of the front decorative portion and the hanging portion from the lower surface cover portion as side walls. A side vent provided in a side wall of the exhaust passage for discharging the air in the air flow path to the outside, and a lower exhaust port provided in the lower surface of the exhaust passage, An outer wall ventilation structure characterized in that the upper end portion of the outer wall panel is covered with a certain space, the air flow passage and the exhaust passage are communicated, and the curtain plate is detachably attached to the mounting bracket.   The mounting bracket includes an upper locking portion that engages with an engagement piece projecting downward at an end portion of the upper surface cover portion at an upper end portion thereof, and an end portion of the lower surface cover portion at a lower end portion thereof. The outer wall ventilation structure according to claim 1, further comprising a lower locking portion that engages with an engaging portion that extends upward.   2. The outer wall ventilation structure according to claim 1, wherein a housing abutting piece that contacts the housing extends upward from an end portion of the upper surface cover portion along a length direction of the curtain plate.   An air flow passage formed between the housing and the outer wall panel attached to the upper floor is provided with an exhaust port for discharging air flowing downward from above at regular intervals, and is in contact with the lower end portion of the outer wall panel. The outer wall ventilation structure according to claim 1, wherein an exhaust portion is provided to protrude from an end portion of the upper surface cover portion along a length direction of the curtain plate.   The outer wall ventilation structure according to claim 1, wherein the curtain plate is formed of an elastic synthetic resin.

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