JPH0619543Y2 - Clay roof tiles - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a large-sized clay roof tile generally referred to as a 49 tile.

[Prior Art] For roofs of houses, etc. constructed in heavy snow areas in the back Japan, such as the Hokuriku region, as roof tiles that are resistant to snow, one piece is large in area, thickness, and weight, and baked at a high baking temperature. Large clay tiles are used. This type of clay roof tile is fixed by means of a copper wire that penetrates through a hole provided at one corner of the top of the roof tile body and is fixed to the roof tile crosspiece. In addition, unlike ordinary hooking tiles, since there is no locking projection on the upper end of the back surface of the roof tile body, a large number of clay tiles cannot be erected vertically on the top of the truck and placed in parallel.

Therefore, in the conventional case, along the upper surface of the refractory bricks 7 arranged on the carriage 6 as shown in FIG.
Soft clay strings called `` is laid in advance at equal intervals, and the plastic tiles of the raw clay are used by manually laying the clay tiles before firing across the cutting rods 11 and 11 in parallel. Then, the clay tiles are placed and fixed on the carriage 6, and the clay tiles before firing are carried into the furnace or the clay tiles after firing are carried out of the furnace to perform the firing of the 49 tiles. .

[Problems to be solved by the device]

However, when the clay tile is manufactured by the conventional method,
Not only does it cost a lot of labor to load and unload the roof tiles on the dolly, but it also burns the clay of the cutting rod at the same time as the roof tile body is burned, so the fuel cost is very high,
In addition, it is necessary to separate the fired piece of the cutting rod from the roof tile body after firing, and at that time, the fusion mark of the cutting rod remains on a part of the roof tile body to deteriorate the quality, and the broken pieces of the cutting rod after firing. There is a possibility that an accident may occur in which the truck cannot be pulled out from the inside of the furnace because it is caught in the gap between the refractory bricks on the truck and the width of the truck expands.

Therefore, when automating a series of clay roof tile manufacturing processes such as preparation of raw soil → preparation → kneading → molding → drying → firing to improve the quality and cost of the roof tiles, it is generally called "Morokuro". The so-called hooking tiles have already been fully automated, and even with 49 tiles, even though the mechanization technology has been established for most of the processes, loading on the truck in the firing process is done. Since the work is the biggest obstacle, it is still difficult to realize the automation of the entire work process for 49 tiles.

The present invention was devised to solve the above-mentioned problems, and its main purpose is to cut clay tiles before firing on the upper surface of a trolley and arrange them in parallel at regular intervals. We provide clay roof tiles with a structure that allows the roof tiles to stand vertically in a stable state without easily falling down even if no clay strings are intervened. It is about realizing mechanization.

[Means for Solving the Problems]

In order to achieve the above object, in the clay roof tile of the present invention, at the bottom end of the roof tile body at the time of firing, a protrusion for vertically standing the roof tile body and supporting it at three points is projected. Further, in order to maintain the standing stability, of the convex portions, the convex portion in the middle portion is formed to be long in the lateral direction, and the end surface of the convex portion is inclined downward toward the inside. is there.

[Action]

Unlike conventional clay tiles, when these clay tiles are erected on the upper surface of the bogie, the protrusions protruding from the bottom end surface cause the roof tile body to erect vertically in a stable posture. Since it is not necessary to support it by interposing a clay string such as a cutting rod between and, it becomes easy to mechanize the work of loading and unloading clay tiles on the dolly, and it becomes possible to fully automate the clay tile manufacturing process. .

〔Example〕

Hereinafter, the structure of the clay tile according to the present invention will be described in detail with reference to the drawings of the embodiments. The drawings show an example of an embodiment structure in which the present invention is applied to a flat tile of 49 size. Curved along the direction of, and notches 2 are provided at the upper left corner and the lower right corner respectively, and upward and downward water-turning edges 3, 4 are provided at the peripheral edge portions that are adjacent to each other when the roof is raised.
Is formed and a through hole 5 is formed in the upper left corner for penetrating a copper wire. This point is basically the same as the conventional 49 tiles. However, in the case of the present invention, when the clay tile is fired, as shown in FIG. 4, the bottom end face 8 which contacts the refractory brick 7 on the upper surface of the carriage 6, that is, in FIG. The front and back surfaces are coated with glaze, and during firing processing, since the entire roof tile is turned upside down and loaded on the upper surface of the carriage 6, the upper end surface of the roof tile body 1 corresponds to the bottom end surface 8 during firing. Three projections 9a, 9b, 9c having a shape as shown in FIG. 2 are provided on the bottom end face 8 so as to project to a height of about 3 mm.

In the case of this embodiment, of the three convex portions 3a, 3b, 3c, 2
The convex portions 9a, 9c at the ends are provided so as to project to the left and right ends of the bottom end surface 8, and the convex portion 9b in the middle is unevenly distributed on the convex curved surface side of the arc-shaped curved portion of the roof tile body 1. And is formed in a laterally long direction with the center line (center of gravity) of the roof tile body 1 interposed therebetween.
Further, the end surface of the convex portion 9b is inclined downward from the outside to the inside as shown in FIG. 3, and such inclination is
It may also be provided on the convex portions 9a and 9c facing each other as required.

Since the clay roof tile of the present invention has the above-mentioned structure, when the clay roof tile is loaded on the carriage 6 and arranged in parallel during firing processing, the bottom end face 8 of the roof tile body 1 is directed downwards.
Unlike conventional clay roof tiles, when raised on the upper surface of the fire brick, the three bricks 9a, 9b, 9c protruding from the bottom end face 8 face each other in the positional relationship connecting the apexes of the triangles. Since the tile main body 1 can be vertically self-supported in a posture of three-point support in which the distribution of fulcrums is most stable, the tile main body 1 collapses due to vibration during transportation or flame flow in the furnace. Never. Further, in the case of the present invention, among the three convex portions 9a, 9b, 9c, the intermediate convex portion 9b is formed to be long in the lateral direction, so that when the parallel gaps of the refractory bricks 7 intersect at that position. However, since some part of the convex portion 9b is always grounded on the upper surface of the refractory brick 7, the self-supporting posture of the roof tile body 1 does not collapse,
Further, since the above-mentioned convex portion 9b is inclined downward toward the inner side, even when the roof tile body 1 is placed slightly inclined forward and backward with respect to the upper surface of the refractory brick 7, the convex portion 9b is loose in the state of surface contact. There is no risk of contact, and it always plays a role of being corrected to the correct posture and touching the ground.

In addition, although the above-mentioned embodiment applies the present invention to a flat tile of 49 size, the present invention is not limited to the above flat tile,
It can also be applied to snow roof tiles with strings or bumps.

[Effect of device]

As described above, since the clay roof tile of the present invention has the protrusions that vertically stand up the roof tile body and support it at three points at the bottom end surface during firing of the roof tile body, the clay roof tile is manufactured. In the process, when the tile main body before firing is loaded on the upper surface of the trolley and arranged in parallel at regular intervals, the tile itself does not have to be supported by interposing a clay string such as a cutting rod in advance. Since it has a structure that can stand upright in a stable state without falling over easily, the problems of the 49 tiles that have been a concern in the past can be solved at once, and the automation of the entire process of clay tile production can be automated. Will be feasible. In addition, according to the present invention, since the cutting rod is unnecessary when firing the clay roof tile, the adjustment and laying work can be omitted, and the fuel cost can be greatly saved, and the roof tile body after firing. The process of separating the burned pieces of the cutting rod from the is unnecessary, and the welding trace of the cutting rod does not remain on the roof tile body, and the accident that the broken pieces of the cutting rod fall on the truck and the truck cannot be pulled out can be prevented in advance. It also has excellent advantages such as the above, and exerts a great effect in improving the quality of clay roof tiles and reducing production costs.

[Brief description of drawings]

FIG. 1 is a front view of a tile main body showing an example of a concrete implementation structure of a clay tile according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a sectional view taken along the line AA of FIG. FIG. 4 is a side view of the truck showing the loading state of clay tiles during firing, FIG. 5 is a plan view thereof, FIG. 6 is a side view of the truck showing the loading state of clay tiles by the conventional method, and FIG. The figure is a front view thereof. 1 ... tile body, 2 ... notch part, 3,4 ... water edge, 5 ... through hole, 6 ... carriage, 7 ... fire brick, 8 ... bottom end face, 9a, 9b, 9c ... … Convex part, 11 …… Cut bar

Claims (3)

[Scope of utility model registration request] 1. A bottom end face (8) during firing of a roof tile body (1)
In addition, the clay roof tile is characterized in that the roof tile main body (1) is vertically erected to project three convex points (9a, 9b, 9c) for supporting at three points. 2. The clay roof tile according to claim 1, wherein among the convex portions (9a, 9b, 9c), a convex portion (9b) arranged in an intermediate portion is formed long in the lateral direction. 3. The convex portion (9a, 9b, 9c), of the convex portions (9a, 9b, 9c), at least the end face of the convex portion (9b) disposed in the middle portion is inclined downward toward the inside. Clay roof tiles