JP6362965B2 - Exterior member structure - Google Patents

Description

  The present invention relates to the structure of exterior members such as handrails and blindfold louvers provided on a balcony.

Conventionally, some handrails provided on the outer peripheral edge of a veranda or a balcony include a plurality of handrails arranged side by side in the horizontal direction. In a handrail with such a structure, wind noise (also called wind noise or wind noise) is generated when a strong wind blows.
In order to prevent such wind noise, a handrail structure in which the cross-sectional shape and arrangement of the handrail are changed has been proposed (see Patent Document 1).

JP 2009-41320 A

However, in the above proposal, there is a problem that it takes time and labor to produce and attach the handrail because the manufacture of the handrail with different cross-sectional shapes and the change in the arrangement of the handrail are required.
Moreover, since the problem of wind noise often manifests after construction of handrails, it is often necessary to reduce wind noise by post-construction.

  An object of this invention is to provide the exterior member structure which can be manufactured easily and can be post-installed and which can reduce a wind noise.

  A plurality of rod-shaped members that are structures (for example, handrail structures 10, 10A, and louver structures 30 described later) that are exposed to the outside air of the building according to claim 1, and that are arranged substantially in parallel with each other. (For example, a post 11, a handrail 14, and a louver 31 described later) and a plurality of plate-like members (for example, described later) extending outward from the plurality of rod-shaped members at intervals larger than the arrangement interval of the plurality of rod-shaped members. Extending portions 20, 40).

Here, as the exterior member, examples of the exterior member serving as a sound source of wind noise include a vertical lattice handrail of a balcony, a sunshade louver, a blindfold louver, and other decorative members having shapes similar to these.
In the plurality of bar-shaped members arranged side by side, there is a possibility that wind noise that may be an obstacle to the living environment may occur when a strong wind flows along a surface formed by the bar-shaped member and in a direction perpendicular to the bar-shaped member. high.

According to this invention, even if the airflow corresponding to the above acts, it is possible to prevent the strong wind from flowing along the bar-shaped member group, so that a weak wind is generated between the extending portions. That is, the strong wind region moves to the outside of the extending portion, and the vicinity of the bar-shaped member group becomes the weak wind region. Therefore, it is possible to reduce wind noise that is likely to occur in the conventional structure.
In addition, for existing rod-shaped member groups, it is only necessary to attach the extension without changing the layout and other specifications, so it is easy to manufacture the extension, and it is possible to perform post-installation with minimal work. It is.
In addition, since the wind noise of interest here is due to a minute fluid phenomenon and a resonance mechanism in a member group having a relatively small cross-sectional scale, the attached extension itself may generate new wind noise. Is low.

  According to the present invention, it is possible to prevent the strong wind from flowing along the bar-shaped member group, so that the wind noise is reduced between the extending portions, so that wind noise can be reduced. In addition, for existing rod-shaped member groups, it is only necessary to attach the extension without changing the layout and other specifications, so it is easy to manufacture the extension, and it is possible to perform post-installation with minimal work. It is.

It is a perspective view of the exterior member structure concerning the 1st reference example of the present invention. It is a specific example in which strong wind flows along the building exterior. It is the figure which visualized the flow field near the balcony of the Example of this invention, and a comparative example. It is a perspective view of the exterior member structure concerning the 2nd reference example of the present invention. It is a perspective view of the exterior member structure concerning a 1st embodiment of the present invention. It is a perspective view of the adjustment mechanism of the exterior member structure which concerns on the said embodiment.

Hereinafter, reference examples and embodiments of the present invention will be described with reference to the drawings. In the description of the following reference examples and embodiments, the same constituent elements are denoted by the same reference numerals, and the description thereof is omitted or simplified.
[First Reference Example ]
FIG. 1 is a perspective view of a handrail structure 10 as an exterior member structure according to a first reference example of the present invention.
A balcony 3 is provided on the wall surface 2 of the building 1, and the balcony 3 includes a slab 4 and a handrail structure 10 provided along the outer peripheral edge of the slab 4.

  The handrail structure 10 connects a support column 11 as a rod-shaped member provided at a predetermined interval along the periphery of the slab 4, a lower chord member 12 that connects lower portions of the support column 11, and upper ends of the support column 11. The headboard 13 is provided with handrails 14 as rod-like members that are provided at predetermined intervals between the support posts 11 and extend in a substantially vertical direction from the lower chord material 12 to the headboard 13. That is, the support column 11 and the handrail 14 are arranged substantially parallel to each other and side by side.

  Each column 11 is provided with an extension 20 extending toward the outside of the building. Thereby, the extension part 20 is arrange | positioned at a space | interval larger than the arrangement | positioning space | interval of these handrails 14. FIG.

  The lower end of each extension portion 20 has a height substantially equal to the lower end of the handrail 14, and the upper end of each extension portion 20 has a height substantially equal to the upper end of the handrail 14.

Next, examples and comparative examples of the present invention will be described.
For these examples and comparative examples, airflow analysis was performed using a model as shown in FIG. Specifically, the building 1 has a square prism shape in plan view, and the wind direction in which wind noise is likely to be generated as shown in FIG.

FIG. 3 is a diagram visualizing the flow field near the balcony.
As shown in FIG. 3, it can be seen that when the extension portion is not provided, the wind flows along the arrangement direction of the handrails. On the other hand, when the extension part 20 is provided, it turns out that a strong wind area | region moves to the extension part outer side, and the periphery of a handrail becomes a weak wind area.

According to this reference example , there are the following effects.
(1) Even if a strong wind blows along the direction in which the handrails 14 are arranged, a weak wind is generated between the extending portions 20. That is, the strong wind region moves to the outside of the extension portion 20, and the vicinity of the handrail 14 becomes a weak wind region. Therefore, wind noise can be reduced.
Moreover, since it is only necessary to attach the extension part 20 to the support | pillar 11 without changing arrangement | positioning of the handrail 14, the manufacture of the extension part 20 is easy, and a post-construction is possible by a light construction. .

[Second Reference Example ]
FIG. 4 is a perspective view of a louver structure 30 as an exterior member structure according to a second reference example of the present invention.

A louver structure 30 is provided along the wall surface 2 of the building 1.
The louver structure 30 includes louvers 31 as a plurality of rod-like members arranged side by side in the vertical direction and extending in a substantially horizontal direction, and extending portions 40 arranged in the vertical direction at predetermined intervals. That is, the louvers 31 are arranged substantially parallel to each other.

Thereby, the extension part 40 is arrange | positioned at a space | interval larger than the arrangement | positioning space | interval of these louvers 31. FIG.
Further, both ends of each extending portion 40 extend to positions substantially equal to both ends of the louver 31.

According to this reference example , there is an effect similar to (1) described above for the updraft or downdraft on the building wall.

First Embodiment
FIG. 5 is a perspective view of a handrail structure 10A as an exterior member structure according to the first embodiment of the present invention.
This embodiment is different from the first reference example in that an adjustment mechanism 50 is provided.
That is, an adjustment mechanism 50 that adjusts the projecting dimension of the extending portion 20 from the support column 11 is provided on the upper end side and the lower end side of each support column 11.

FIG. 6 is a perspective view of the adjustment mechanism 50.
The adjustment mechanism 50 includes a nut portion 51, a holding portion 52 that is provided on the support column 11 and rotatably holds the nut portion 51, and a bolt 53 that is screwed into the nut portion 51 and whose tip is connected to the extending portion. And a handle 54 that can be attached to and detached from the nut portion 51.
According to the adjustment mechanism 50, the handle 54 and the nut portion 51 are engaged by inserting the handle 54 into the nut portion 51. Then, the nut portion 51 is rotated by gripping and rotating the handle 54. Then, since the bolt 53 is screwed into the nut portion 51, the projecting dimension of the bolt 53 from the nut portion 51 changes. In this manner, the projecting dimension d of the extending portion 20 from the support column 11 is adjusted.

According to the present embodiment, in addition to the above-described effect (1), the following effect can be obtained.
(2) By adjusting the protrusion dimension of the extension part 20 with the adjustment mechanism 50, the extension part 20 can be easily set to a position where the wind noise can be reduced most.
In addition, since the handle 54 is detachable, the handle 54 only needs to be attached to the adjustment mechanism 50 only when the position of the extending portion 20 is adjusted, so that the usability and aesthetics of the balcony 3 are not impaired.

  It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.

DESCRIPTION OF SYMBOLS 1 ... Building 2 ... Wall surface 3 ... Balcony 4 ... Slab 10, 10A ... Handrail structure (exterior member structure)
11 ... Post (bar-shaped member)
12 ... Lower chord material 13 ... Kasagi 14 ... Handrail (bar-shaped member)
20 ... Extension part 30 ... Louver structure (exterior member structure)
31 ... Louvre (bar-shaped member)
40 ... Extension part 50 ... Adjustment mechanism 51 ... Nut part 52 ... Holding part 53 ... Bolt 54 ... Handle

Claims (1)

A structure of an exterior member that is exposed to the outside air of a building,
A plurality of columns provided at predetermined intervals along the periphery of the slab of the balcony of the building;
A plurality of handrails provided at predetermined intervals between the plurality of columns;
A plurality of extending portions extending from the respective columns toward the outside of the building ;
An exterior member structure comprising: an adjustment mechanism that is provided on each of the columns and adjusts a protruding dimension of the extension portion from the column .

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