JPH0767686B2 - Molding method for split roof tiles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner ridge that is a kind of ridge tile that is laid along a roof valley or a ridge, and has a good molding condition of a ridge tile with a dividing groove that can be divided to form a corner ridge. The present invention relates to a method for molding a roof tile with split grooves that can be obtained.

[0002]

2. Description of the Related Art Conventionally, when roofing roof tiles and corner ridges along a ridge, a normal ridge tile that occupies the majority of the roof surface is used to form a substantially triangular space portion along the valley and ridge. In order to close it, a tool such as a tile metal hammer is used, a cutting line for dividing is attached to the cross tile, and it is beaten along the cutting line to divide it into the required shape and caulking, but this work Not only is it very troublesome, but it also requires skill, and especially when installing in a valley, the cutting edge is exposed to the outside, so further finishing is required, and the work environment is reduced due to the generation of dust due to the division work. It had the drawback of getting worse.

[0003] Therefore, with respect to the sash tile, the angle at which the eave edge and the valley portion and the ridge, which are formed by a plurality of roof surfaces such as a ridge, cross from one side of the tile main body to the other side, is made to correspond. As a result, a roof tile having diagonally divided grooves (one or more grooves, which do not intersect) has been developed.

However, in the case where the above-mentioned split grooved roof tile is formed by the same molding method as that of the normal crosstile, for example, a protrusion body corresponding to the divided groove is formed on the lower die surface for press molding by projection. On the other hand, in the waste land for cross-tile molding, a tile-shaped one is extruded from a clay mixer, and then press-molded to form a water bar, nail holes, etc. Therefore, the conventional molding method In the wasteland, the wasteland components in the center part are extruded and moved to the peripheral part to form water repellent and to make the wall thickness of the roof tile uniform. Since it exists, the waste material in the central part cannot be extruded and moved to the peripheral part sufficiently, and as a result, the roof tile base that has been press-molded cannot have water repellent or the like in its peripheral part, or the wall thickness is insufficient. It had drawbacks.

[0005]

SUMMARY OF THE INVENTION According to the present invention, even if a cross-groove with a dividing groove is formed by press molding, the wall thickness of the entire tile base material is made equal, and the water repellent in the peripheral portion is preferably molded. The purpose of the present invention is to provide a method for forming a roof tile with dividing grooves.

[0006]

The present invention is based on the above-mentioned prior art, and when the dividing grooved stile is molded by press molding, projections such as water barbs cannot be molded or the peripheral wall thickness is insufficient. In view of the problem, in a rough land extruded into a substantially roof tile shape from a clay extruder or the like, the rough land is extruded by forming a thick wall on the crosspiece side and the insertion side and then forming a dividing groove. Press-molding with an upper mold or a lower mold that is fixed and protruding, to cope with the movement of the wasteland component that was present in the center during conventional press molding, by arranging the wasteland component in advance on the crosspiece side and the insertion side in excess.
It is an object to solve the above-mentioned problem by supplying the sufficient amount of the wasteland component to necessary portions such as water repellent without the lack of the wasteland component even in the peripheral portion during press molding.

[0007]

According to the present invention, the tile roof material, the clay raw material and the like are kneaded in a vacuum state or the like, and are extruded into a substantially roof tile shape from a die (not shown) of a clay kneader to be used for a normal roof tile. In place of the mouthpiece for the tile with split groove, the waste land for the roof tile with split groove is thicker on both sides of the crosspiece and the insertion side than the wasteland for the tile, especially at its end. (The same thickness in the center part) is extruded, and then the rough mold is pressed with a lower mold and an upper mold (not shown) that fixedly protrude the ridges that form the dividing grooves, and It is molded.

Then, in the conventional press molding, the waste land component was moved from the central portion to the peripheral portion, but in the press molding of the present application, the waste land component is excessively arranged in advance on the crosspiece side and the insertion side, and Even if the movement of the wasteland component is restricted by the strips, the shortage of the wasteland component at the time of press molding in the peripheral portion is prevented, and the wasteland component is sufficiently supplied to the necessary portions such as water repelling in the peripheral portion.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, in which 1 is a split grooved roof tile molded by the molding method of the present invention, and the split grooved roof tile 1 is extruded from a kneading machine or the like. The rough tile A is press-molded, and the roof tile base B is press-molded
It is made of ceramics that are dried and fired.
A ridge portion 4 having a semi-circular cross section is bulged on the rail side 3 as a ridge, and a valley portion 7 is formed so as to be continuously curved downward from the ridge portion 4 to an insertion side 6 as the other side 5. The roof tile-shaped roof body 8 having the above is formed.

Although the roof tile main body 8 in this embodiment is described as a Japanese roof tile, it is not limited to such a shape, and may be, for example, S roof tile, flat roof tile, candle roof tile, flat roof tile, or the like. ,
In short, any roof tile that is to be roofed and that occupies the majority should be used.

Reference numerals 9 and 9a denote dividing grooves. The dividing grooves 9 and 9a extend from one side 2 of the roof tile body 8 to the other side 5 and from the head side 10 to the hip side 11 of the roof tile body. 8 is formed by engraving on the back surface 12 of 8, and specifically, the angle θ1 at which the eave edges 14, 14a ... composed of a plurality of roof surfaces 13, 13a ... of the dormitory and the valley and the buildings 15, 15a ... intersect. That is, the crossing angle θ2 with the roof side 10 end edge line of the roof tile main body 8 is formed in a slanting pattern corresponding to the angle θ1.

Further, the dividing tile 9 with the dividing groove according to the present embodiment is divided and cut along the dividing grooves 9 and 9a, and the remaining portions 16 and 16a after cutting are the valleys of the roof surfaces 13, 13a ... And the ridge 15. , 15a
It is made up of corner ridge tiles 17, 17a, 18, 18a that are laid along the ..., and the troughs and ridges 15, 15a can be set by appropriately setting the angles and positions of the dividing grooves 9, 9a. It can be used on both sides (left and right when viewed from the roof surfaces 13, 13a).

A concrete example of the corner ridges 17, 17a, 18 and 18a will be described with reference to the example of the roofing in the ridges 15 and 15a of FIG. 3 and the divided grooved ridges 1 of FIGS. 4 to 7. Each corner sill 17, 17a of the sill 1 with split grooves (FIGS. 6 and 7)
Are used as the corner flat tiles 19 and 19a in the ridges 15 and 15a. Also, the corner cross tiles 18 and 18a of the common type split grooved tile 1 (Figs. 4 and 5) are used as the left and right sides of the common corner tiles 20 and 20a. I'm using it.

Reference numeral 21 in the drawing denotes a protrusion formed on a surface 22 of the valley portion 7 of the roof tile body 8 opposite to the dividing grooves 9 and 9a, and 23 denotes a notch formed at a corner portion of the roof tile body 8. , 24 are water repellents projectingly formed on the rear side 11 and the insertion side 6 of the roof tile body 8.

Numeral 25 is a lower mold used for press molding of waste land A
(Or an upper mold) , and a ridge body 26 (only one is shown in the drawing) that forms the dividing grooves 9 and 9a at predetermined positions on the lower mold 25.
Are projectingly fixed, and flanges 27, 27a ... Are integrally formed at the lower end of the protrusion 26, and screws 28, 28a.
The ridge 26 is fixed on the lower mold 25 by.

Next, a method of forming a cross-grooved tile with split grooves according to the present invention will be described. Kneading of roof tile material, clay raw material, etc. in a vacuum state, etc., and extrusion into a substantially roof tile shape from a die (not shown) of a clay kneader. In the waste land A to be molded, a mouthpiece for the split grooved roof tile 1 is used in place of the base for the normal roof tile, and the waste land A for the split grooved roof tile 1 is used as compared to the waste land a for the roof tile 3 and both sides of the insertion side 6, in particular the ends thereof, are made thick (the same thickness at the central portion 29) and extrusion molded, and then the dividing grooves 9,
The rough terrain A is pressed by the lower mold 25 and the upper mold (not shown) in which the ridges 26 forming the 9a are fixed and projected to form the tile base B.

In the conventional press molding, the wasteland component was moved from the central portion to the peripheral portion, but in the press molding of the present application, the wasteland component is excessively arranged in advance on the crosspiece side 3 and the insertion side 6. Even if the movement of the wasteland component is restricted by the ridges 26, the shortage of the wasteland component at the time of press molding in the peripheral part is prevented, and the wasteland component is sufficiently supplied to the necessary parts such as the water return 24 in the peripheral part. Or, the wall thickness of the tile base material B press-molded is made uniform.

Further, the upper and lower openings of the mouthpiece are reduced as a whole to make the crosspiece side 3 and the insertion side 6 thick as described above, and
The rough wall A may be extruded to have a basic thickness (thickness of the central portion 29) thinner than that of a conventional crosspiece.

Next, the operation of the cross-groove with split groove according to the molding method of the present invention will be described. One of the split grooves 9 and 9a formed in the tile main body 8 as the cross-tile with split groove 1 is used as a boundary (head side).
10 or the buttocks side 11) so that the other side is beaten with a tool such as a tile wrench, or cut along the dividing grooves 9 and 9a with a rotary cutting tool, so that the roof valley and the ridge 15, 15a… Corner tiles 17, 17a, 18, 18 that are installed along the
Corner flat tiles 19 and 19a and common corner flat tiles as described above
20 and 20a will be installed.

[0020]

In summary, according to the present invention, in the rough land A extruded into a substantially roof tile shape by a clay kneader or the like, the rough land A is provided on the crosspiece side 3.
And a lower die 25 having a protruding body 26 protrudingly fixed, which is extruded to form a thick wall on the insertion side 6 and then forms the dividing grooves 9 and 9a.
Alternatively, since the press molding is performed by the upper mold , the press- molded tile base material B has a substantially uniform thickness as a whole, and the dividing grooves 9 and 9 are formed.
Corner tiles 17, 17a, 18, 18 divided and cut at a
"a" can be of the same quality as a conventional one cut by human power, and the water return 24 can also maintain a sufficient height.

Also, by simply changing the mouthpiece of the clay kneader,
Since the above-mentioned molding method (same as the conventional molding method) is possible and, therefore, it has the same shape as the stile that is normally manufactured, existing equipment can be used as it is in a series of manufacturing processes such as pressing, drying, and firing processes. Can and cheap corner tile
Can provide 17, 17a, 18, 18a.

Further, since the basic wall thickness is extruded to be thinner than that of the roof tile, the amount of the wasteland component excessively arranged on the rail side 3 and the insertion side 6 is eliminated from the central portion of the tile base material B. Then, the amount of the waste land A required for manufacturing one tile base material B can be made equal to that of the conventional waste land a, so that the tile main body 8 is prevented from being excessively thickened or the waste land A is reduced. That is, the practical effect is extremely great.

[Brief description of drawings]

FIG. 1 is a side view comparing a waste land for a slab with a dividing groove according to the present invention and a conventional waste land for a sash.

FIG. 2 is a side view comparing a wasteland for a sill with a dividing groove with a basic thin wall and a conventional wastewater for a stile.

FIG. 3 is a schematic plan view of an example of a roofing installation in a wing.

FIG. 4 is a schematic plan view of a common type roof tile with split grooves.

FIG. 5 is a schematic back view of a common type roof tile with split grooves.

FIG. 6 is a schematic plan view of a roof tile with dividing grooves.

FIG. 7 is a schematic plan view of a roof tile with split grooves according to another embodiment.

FIG. 8 is a schematic perspective view of a lower mold.

FIG. 9 is a schematic perspective view of a lower mold of another embodiment.

FIG. 10 is a schematic cross-sectional view of an essential part for explanation at the time of press molding.

FIG. 11 is a schematic perspective view of a roof.

FIG. 12 is a schematic plan view of a roof.

[Explanation of symbols]

 3 Crosspiece side 6 Insertion side 9, 9a Dividing groove 25 Lower mold 26 Ridge body A Waste land B Roof tile base material

Claims (2)

[Claims] 1. In a rough land extruded into a substantially roof tile shape by a clay extruder or the like, the rough land is extruded into a thick wall on the crosspiece side and the insertion side, and then a protrusion is formed to form a dividing groove. A method for molding a cross-groove with a dividing groove, characterized in that press molding is performed by an upper mold or a lower mold in which a body is fixed in a protruding manner. 2. The method for molding a cross-groove with split grooves according to claim 1, wherein the basic thickness of the cross-section is extruded thinner than that of the cross-tile.