JP2541345Y2 - Roof shelves - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof tile for roof tiles which prevents deformation of roof tiles during firing.

[0002]

2. Description of the Related Art In the case of firing roof tiles or the like, generally, as shown in FIG.
A large number of tiles are placed on a tile firing truck having a structure similar to that of the conventional example 1 and each of the carts is sent to a firing furnace for firing. This trolley for firing tiles stacks refractory bricks 23 on a loading platform 21 with moving wheels 20, and sets up a plurality of columns 24 on the refractory bricks 23.
A square or rectangular firing plate 25 between the columns 24
a, 25b, 25c,..., respectively, and are formed by connecting them. .., A large number of tiles, for example, tiles 26a, which are self-supporting like Japanese type tiles or S type tiles, are placed on the firing shelves 25a, 25b, 25c.
26b... Is automatically placed on a machine by itself and placed. In addition, as in the conventional example 2 described in the microfilm of Japanese Utility Model Application No. 1-106001 (Japanese Utility Model Application No. 3-46200), the baking shelf board is moved by a large horizontal force by the automatic loading / unloading machine. In order to prevent slippage, a plurality of sheets are abutted on the front and rear edges to each other, and at the joint of tile shelves for tile firing which are continuously arranged on the upper part of the carriage, one edge is orthogonal to the edge as shown in FIG. Base end 6c
Is formed, and the concave portion 6a and the protrusion 6b provided on the other end are engaged with each other, and are bent in a U-shape and shifted laterally in the same manner as in the longitudinal direction. Is prevented.

[0003]

However, the tiles for firing tiles of the above-mentioned prior art example 1 are provided with a pair of firing shelves connected to each other, for example, between the butted sides of a firing shelf 25a and a firing shelf 25b. Alternatively, a gap is formed between the butted sides of the baking shelf plate 25b and the baking shelf plate 25c, and a step is formed during repeated use, so that the connecting baking shelf plates are on the same surface. It was usually gone. The tiles that stand alone, such as Japanese tiles and S tiles, have a curved cross section and a sword, so for example, as shown in FIG. Baking shelf 25
When the tile 26b is placed at the position of the linear connection portion 25 between the b and the baking shelf 25c, the roof 26b has a warp, so that the center part and both ends are respectively provided in the baking shelf 25b and the baking shelf 25c. And straddle it. The above-mentioned steps at the joints are manually repaired before firing, but they can be overlooked or cause small but large deformation. Contact, the two pieces had to be joined together with a glaze and discarded as defectives, which was a factor in productivity hindrance. By the way, 27
Is a sword. Further, as in the conventional example 2, since the meshing is performed at the base end portion orthogonal to the edge, when a force larger than the setting is applied to the heat-resistant ceramic firing shelf, the protrusion is set to the base. In addition to being cut off from the end, the protruding protrusion that makes the tip a semicircle to ease the stress due to damage during handling and thermal expansion during firing is the shape of the tile bottom to be fired Since it is designed independently, it supports a part different from the center of gravity of the tile, so that the tile with the shifted center of gravity is deformed during firing and contacts the next tile, as in Conventional Example 1, and the two tiles are covered with glaze Joined defective products are generated and the yield is reduced.

[0004] Therefore, an object of the present invention is to provide a tile firing plate for preventing deformation during tile firing and improving the yield.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a tile board for firing tiles according to the present invention allows a plurality of sheets to abut on each other at the top of a bogie to allow a degree of freedom in the front-rear direction.
A tile firing shelf plate that is continuously arranged Te, provided to form a bow-shaped recess at one edge, the arcuate projections corresponding to the arcuate recess in the other edge, shelf The joints between the plates are approximated to the warpage of the placed tile bottom ,
For the vertical and horizontal deviation,
The degree of freedom is allowed . In addition, the recess and the protrusion
At the center of the front and rear edges,
Is preferable to be a tile firing plate in which both ends are connected to the left and right side edges so as to form a wide angle .

[0006]

The roofing tile for roof tiles having the above-mentioned structure has a bow-shaped recess at one end, and a plurality of pieces of roofing roof for roofing which are continuously arranged with their front and rear edges abutting each other. The other edge is provided with an arcuate projection corresponding to the arcuate recess, and the joint between the shelves is approximated to the warpage of the placed tile bottom. Even if the machine is automatically self-supported and placed, it is placed on the shelf with the greater center of gravity of the tile, so even if there is a vertical step at the connection between the two shelves for firing, The tiles are stably mounted while being supported by the center of gravity while being displaced together with the shelf plate, so that the tiles are not distorted and deformed during firing, and the occurrence of defective products is prevented, thereby improving the yield. Further, since the degree of freedom in the vertical and horizontal displacements is allowed at the joint, the lateral projection of the shelves is not overloaded with a large force, and the shelves are not damaged. Further, the concave
Part and the projection are positioned at the center of the front and rear edges, and the projection
Connect both ends of the seam to the left and right side edges to form a wide angle
Tiles for fired roof tiles may be displaced by external forces
Since it is pan, the concave portion and the projecting portion are not lost.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of a tile plate for firing tiles according to the present invention. FIG. 1 shows a trolley A for laying tiles on which a shelf board for laying tiles is placed. Firebricks 3 are stacked on a carrier 2 with moving wheels 1 and a plurality of columns 4 are erected on the bricks 3. , A plurality of rectangular firing shelves 5a,
5b, 5c,... Are laid over each other, and the front and rear edges thereof are abutted to each other, and are continuously arranged while allowing a degree of freedom in the front and rear direction .

The connecting portion 6, which is a joint between the sintering shelf 5a and the sintering shelf 5b, is provided on the sintering shelf 5a and the sintering shelf 5b. The connecting portion 7, which is formed by abutting the protruding portion 6b and abutting the baking shelf plate 5b and the baking shelf plate 5c which are connected to each other, is connected to the concave portion 7a provided on the baking shelf plate 5b. And a projection 7b provided on the shelf plate 5c.
These recesses 6a, 7a and protrusions 7b, 7b are
The recesses 6a, 7a are located at the centers of the front and rear edges.
The ends of the joint of the projections 7b, 7b are left and right edges.
The angle between the front and rear edges perpendicular to the angle is wide
It is connected.

FIG. 2 shows an embodiment of a baking shelf plate. A connecting portion 6 between a baking shelf plate 5a and a baking shelf plate 5b which are connected to each other has a curved cross section of the roof tile 8. In order to avoid this, arcuate concave portions 6a and protrusions 6b approximated to the warpage of the bottom of the tile are provided on the opposite sides thereof, and the concave portions 6a and the protrusions 6b are formed by abutting each other. On the shelf 5a, the shelf 5b for baking and the connecting portion 6 thereof, tiles 8, 8,... (Partially omitted) for baking are self-standing by an automatic machine (not shown) from above. It is placed. By the way, 27 is a sword.

FIG. 3 shows the firing shelves 5a, 5a of FIG.
FIG. 4 is a plan view showing a state where a plurality of tiles 8 are self-standing and placed on a position of a connecting portion 6 and a baking shelf 5b, respectively, so that the connecting portion 6 avoids a curved portion 8a at the bottom of the tile 8; Since the roof 8 has a bow-like shape approximated to the warpage of the bottom of the tile, the tile 8 can be connected to both the firing shelves 5a,
It does not straddle 5b. Therefore, both the shelves 5 for firing
If there is a large deviation in the vertical and horizontal directions in the connecting portion 6 of a, 5b, it is manually corrected before firing, but the overlooked vertical
Even if there is a step and the step becomes larger during firing,
Is the center of gravity of the tile 8 on one of the two shelves 5a and 5b?
In addition, since it is not tilted and deformed during firing as in the related art and is not deformed, and the occurrence of defective products is prevented, the yield is improved. In order to solve the above-mentioned problems, a tile board for tile firing according to the present invention is a tile board for tile firing that is continuously arranged with a plurality of pieces being butt-connected to each other at the top of a bogie to allow a degree of freedom in the front-rear direction. An arc-shaped recess is formed at one edge, and an arc-shaped projection corresponding to the arc-shaped recess is provided at the other edge, and a joint between the shelves is placed. To the warpage of the bottom of the tile ,
The degree of freedom is allowed for vertical and horizontal deviations .

[0011] As shown in FIG. 4, a roof tile baking truck, which is generally widely used, is usually about 80 cm long and 26 cm wide.
m rectangular tile firing shelves 11a, 11b, 11c, 1
Four rows of 1d are placed in the vertical direction (in FIG. 4, the vertical and horizontal directions in the traveling direction F are used, and the same meaning is used hereinafter). Connecting part 1
2, 13 and 14 are formed.
In a row of 0, 100 tiles are arranged side by side in each row. Therefore, 1000 tiles are placed on one tile firing carriage.

In a normal firing operation, if there is a step in each of the connecting portions 12, 13, and 14,
An average of two defective products are generated at one connecting part, and three connecting parts are present. Therefore, the total number of defective products is as follows.
2 (sheets) × 3 (locations) × 10 (rows) = 60 (sheets), and the defect occurrence rate is 60 (sheets) ÷ 1000 (sheets) =
0.06. That is, a 6% defect occurs,
By using the above-mentioned firing shelf, this can be prevented beforehand, so that the yield is improved and the cost is reduced.

The shapes of the recesses and protrusions of each connecting portion of the firing shelf in the above embodiment, the number of shelves placed on one tile firing truck, and the number of tiles placed on one row of shelves Is an exemplification, and the present invention is not limited thereto. In short, the present invention can be appropriately changed without departing from the purpose and spirit of the present embodiment.

[0014]

As described above, the roof tiles for firing tiles according to the present invention are provided with arc-shaped recesses or protrusions which approximate the warpage of the bottom of the tiles on the shelf boards which are continuously arranged. Even if the tile is placed at the joint where there is a step, the center of gravity is placed on one shelf and it does not straddle both shelves, so it is distorted and deformed during firing Since the situation described above can be avoided, the occurrence of defective products is drastically reduced.
Therefore, the trouble of disposing of defective products becomes unnecessary, and the yield is improved, so that the cost can be reduced. Also, sudden
Degree of freedom for vertical and horizontal displacement at the joint
The shelf or the recess and the protrusion,
Position the center of the edge, and the ends of the
Automatic stacking is possible on shelves connected to the right edge in a wide-angle shape.
Even if a large lateral force is applied by the unloader, the shelf
There is a great benefit of the tile firing shelf according to the present invention, such as the fact that the recesses and protrusions are not lost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tile firing rack on which a tile firing shelf plate according to the present invention is placed.

FIG. 2 is a perspective view showing one embodiment of a tile board for firing tiles according to the present invention.

FIG. 3 is a plan view showing a state in which a tile is placed on a tile firing plate of FIG. 2 and a connection portion thereof.

FIG. 4 is an explanatory view of an arrangement state of a tile-sintering shelf and a tile placed on a normal tile-sintering cart.

FIG. 5 is a perspective view of a carriage for roof tile firing on which a shelf board for roof tile firing of Conventional Example 2 is placed.

FIG. 6 is a perspective view of a roofing rack for carrying a roofing shelf of Conventional Example 1.

FIG. 7 is an explanatory view of a state in which tiles are placed on the tile firing shelf plate of FIG. 6;

[Explanation of symbols]

5a, 5b, 5c ··· baking shelf, 6, 7 · · · connecting part,
6a ... recess, 6b ... projection, 8 ... tiles, A ... tile firing firing cart.

Claims (2)

(57) [Scope of request for utility model registration] 1. A roofing plate for firing tiles, in which a plurality of sheets are continuously arranged with a front and rear edge of each other abutting each other with a degree of freedom in the front and rear direction, and an arcuate concave portion is formed on one edge. At the other end, an arc-shaped protrusion corresponding to the arc-shaped concave portion is provided on the other edge, so that the joint between the shelves is approximated to the warpage of the placed tile bottom, and the joint is
A roof plate for firing tiles, which allows a degree of freedom in vertical and horizontal deviations . 2. The method according to claim 1, wherein the recess and the projection are formed in the front and rear edges.
Center, and both ends of the joint are
2. A tile firing tile according to claim 1, which is connected to form a wide angle.
Board.