JPH0227926B2 - KOONAAYAKUBUTSUNOSEIZOHOHO - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a corner accessory used for an outer wall corner of a building such as a house.

Generally, when constructing the outer wall of a house, a wall board material having a right-angled bent part at the corner part is sometimes used, and this wall board material is called a corner accessory.

On the other hand, cement-based exterior wall materials are widely used as exterior wall materials for houses, but metal corner accessories and extruded cement-based accessories are often used as corner accessories due to fire resistance, durability, etc. ing.

However, since the metal corner accessory is not made of the same material as the inorganic exterior wall material, it gives a noticeable sense of incongruity and does not provide a luxurious appearance. In addition, in cement-based extrusion molding, a groove pattern can be formed in the same direction as the extrusion direction at the same time as the molding process, but if you want to form a groove pattern in a direction perpendicular to the extrusion direction, you have to groove the irregular cross section after molding. The disadvantages are that the processing is troublesome and the equipment is large and the cost is high. Alternatively, two inorganic plates whose ends are cut at an angle of 45 degrees are joined together to form an L-shaped cross section, but this method is time-consuming and has the drawbacks of poor processing accuracy.

Therefore, in view of these points, the present invention provides a method for manufacturing corner accessories that can mass-produce inorganic corner accessories with high accuracy.

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a corner accessory 1 according to the present invention. First, an undercoat sealer 3 is applied to the surface of an inorganic board 2. As the inorganic board 2, a cement-based material such as an asbestos cement calcium silicate board is used. Further, as the undercoat sealer 3, a urethane sealer or the like is used. While the undercoat sealer 3 is still in an undried state, a sheet material 4 is laminated on top of this coating layer. In addition to its original role as a sealer, this undercoat sealer 3 also serves as a temporary adhesive for sheet-like objects, so it needs to have appropriate adhesive properties, so it must be adjusted as appropriate by mixing an adhesive into the sealer. Let's do it. As the sheet-like material 4, cloth, paper, etc. are used.

Next, four V-grooves 5 are cut in parallel to each other at predetermined positions on the back surface of the inorganic plate 2 until they reach the sheet-like material 4 on the front side without cutting the sheet-like material 4. Adhesive is applied to this V-groove 5 and bent at the V-groove portion to form a hollow column 6 having a rectangular cross section.The hollow column 6 is pressed with a press and bonded together. Thereafter, the hollow column 6 is cut along the center line of the cross section perpendicular to the length direction of the hollow column 6 to be divided into four parts, thereby forming an L-shaped cross-sectional member 7.

Thereafter, the sheet-like material 4 remaining on the surface of the L-shaped cross-sectional member 7 is peeled off, and a top coat sealer 8 is further applied to the surface of the L-shaped cross-sectional member 7, thereby producing the corner accessory 1 according to the present invention. Ru.

In order to form the lateral grooves 9 or the connecting notches 10 on the surface of the corner accessory according to the present invention, the inorganic plate 2 may be grooved in advance. Moreover, when making it into a corner accessory for an inside corner, what is necessary is just to apply a sealer treatment etc. to the inner part of the corner accessory 1.

As described above, according to the present invention, the sheets are temporarily bonded using an inorganic sealer, the sheets are peeled off after V-cut formation, and a top coat sealer is further applied, so that the surface treatment is sufficient and the effort of surface treatment is reduced. It can be omitted. Further, there are advantages such as mass production of corner accessories with high precision and ease of machining grooves for connection.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a corner accessory according to the present invention, and FIGS. 2 to 7 are schematic sectional views showing the manufacturing process. 1... Corner accessories, 2... Inorganic board, 3...
Undercoat sealer, 4...sheet-like material, 5...V
Groove, 6...Hollow columnar body, 7...L-shaped cross-section member, 8
...Top coat sealer, 9...Horizontal groove, 10...Connection notch.

Claims (1)

[Claims] 1. Apply an undercoat sealer to the surface of the inorganic board, and while the sealer is still wet, layer a sheet-like material such as cloth on top of it and temporarily adhere it, then apply a sheet-like material on the front side to a predetermined position on the back of the inorganic board. A plurality of V-grooves reaching the object are cut in parallel to each other, adhesive is applied to the V-grooves, and the hollow columns are bent at the V-grooves to form a hollow column and are bonded together. is divided into four along the center line of the cross section to form an L-shaped cross-sectional member, and then a sheet-like material on the surface of the L-shaped cross-sectional member is peeled off and a top coat sealer is applied to the surface. manufacturing method.