JPH0649728Y2 - Exterior material - Google Patents

Description

TECHNICAL FIELD The present invention relates to an exterior material having a ventilation function made of a cement board, a calcium silicate board, a pulp-mixed cement board, an asbestos cement board, or the like.

(Background Art) As shown in FIG. 1, a conventional exterior material (a) is provided with a lateral groove (c) along the longitudinal direction on the back surface (b) of the exterior material body, and a vertical groove is provided between the lateral grooves (c). Those provided with ventilation vertical grooves (d) so as to communicate with each other in a straight line in the direction were generally used.

However, if the ventilation vertical groove (d) is provided between the horizontal grooves (c) so as to linearly communicate with each other in the vertical direction,
Since the main body of the exterior material is made of cement or the like, it has a drawback that it is warped or its bending strength is weakened.

(Purpose of Invention) The present invention has been made in view of the background art described above.
The purpose thereof is to provide lateral ventilation grooves and a large number of ventilation vertical grooves communicating between the lateral grooves at different positions in the width direction of the exterior material body so as not to be continuous linearly in the vertical direction, thereby providing a ventilation function as an outer wall. The purpose of the present invention is to provide an exterior material which is prevented from warping and is resistant to warping and has a high bending strength.

(Disclosure of the Invention) Hereinafter, description will be made with reference to FIGS. 2 to 5 according to an embodiment of the present invention.

In FIG. 2 and FIG. 3, A is a cement board, a calcium silicate board, a pulp-mixed cement board, an asbestos cement board and the like. The exterior material is formed by arranging a large number of ventilation vertical grooves 3 communicating with the lateral grooves 2 at different positions in the width direction of the exterior material body so as not to be linearly continuous in the vertical direction. A fitting portion 4 is formed on the lower end surface of the exterior material A, and a protruding portion 5 on the upper end surface is formed to fit into the fitting portion 4. Further, the shape of the ventilation vertical groove 3 may be a triangular cross section, a square shape, or a circular cross section.

FIG. 4 relates to a different embodiment of the present invention, in which B is a plurality of lateral grooves 2 provided along the longitudinal direction on the back surface 1 of the outer casing main body, and a plurality of obliquely inclined vents communicating between the lateral grooves 2. The exterior material is formed by arranging the vertical grooves 3 in the width direction of the exterior material main body so that the vertical grooves 3 are not linearly continuous and the diagonal directions are alternately reversed.

FIG. 5 relates to a further embodiment of the present invention, in which C is provided with a plurality of lateral grooves 2 along the longitudinal direction on the back surface 1 of the outer casing body and is inclined in a plurality of oblique directions communicating with the lateral grooves 2. The pair of ventilation vertical grooves 3 that are crossed with each other are provided at different positions in the width direction of the exterior material body so as not to be linearly continuous in the vertical direction.

(Effect of the Invention) As described above, according to the present invention, a plurality of lateral grooves are provided along the longitudinal direction on the back surface of the outer casing body, and a large number of ventilation vertical grooves communicating between the lateral grooves are continuously formed in a straight line in the vertical direction. Since it is provided so as to be displaced in the width direction of the exterior material body so as not to do so, the lateral groove and the ventilation vertical groove have a ventilation function and can prevent dew condensation in the wall body. Also, unlike the conventional one in which the ventilation vertical groove is provided so as to communicate linearly in the vertical direction between the horizontal grooves, the position of the exterior material main body is shifted in the width direction so that it does not continue linearly in the vertical direction. The ventilation vertical groove provided as above prevents warpage in the longitudinal direction and increases bending strength.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part showing a conventional exterior material, FIG. 2 is a perspective view of the main part according to an embodiment of the present invention, and FIG. 3 is a view showing a state in which the exterior material of FIG. 2 is used. 4 is a longitudinal sectional view of a portion, and FIGS. 4 and 5 are perspective views of a main portion according to another embodiment of the present invention. A, B, C ... Exterior material 1 ... Back surface, 2 ... Horizontal groove, 3 ... Ventilation vertical groove.

Claims (1)

[Scope of utility model registration request] 1. A width of the exterior material body is provided so that a plurality of lateral grooves are provided on the back surface of the exterior material body along the longitudinal direction and a large number of ventilation vertical grooves communicating between the lateral grooves are not linearly continuous in the vertical direction. An exterior material characterized by being provided at different positions in the direction.