JPS634950Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is used in the field of tile manufacturing, when drying and firing so-called white tiles (hereinafter simply referred to as tiles), the tiles are placed at regular intervals. , and relates to a holder for slanted type tile firing that is tilted at a certain angle with respect to the row direction and held, and more specifically, the above-mentioned Utility Model Application No. 59-109486 (Utility Model Application No. 61-23697) and Utility Model Application No. 61-23697. The present invention relates to a holder for firing tiles of a diagonal type, which is an improved holder according to No. 59-109487 (Utility Model Application Publication No. 61-23698).

(Prior art) The diagonal type tile firing holder can efficiently hold eaves tiles, side tiles, etc. in a fixed direction, with the interval between the tiles reduced to about 35 mm, and can hold the tiles in rows in a fixed manner. Features include the fact that the width dimension is apparently quite narrow, increasing the amount charged in the furnace and increasing productivity, and the fact that the combustion gas in the furnace hits each tile uniformly, making it difficult to cause burn spots or color spots. (For example, Utility Model Application No. 55-83690,
56-15998, Utility Model Application Publication No. 57-114400).

Conventionally, in the diagonal type tile firing holder described in Japanese Utility Model Application Publication No. 55-83690, the back support parts a and a of the tile are arranged symmetrically, as shown in FIGS. 9 and 10. The tiles b are arranged with one side of the back support part a shifted one side, and are held leaning at a certain angle with respect to the direction of the row of tiles.

In contrast, Jitsugan No. 109486, Jitsugan No. 59-
The diagonal type tile firing holder according to No. 109487 has a configuration in which the back support portions of the tile are provided as a pair of left and right on a line substantially perpendicular to the direction in which the tile is propped up, and therefore,
Unlike the above-mentioned holder, it is not necessary to shift one side of the back support part of the tile and tilt it diagonally to hold the tile.

Problems that should be solved by the invention
In the case of the diagonal type tile firing holder described in the publication, in order to hold the tile by shifting one side of the back support part a and tilting it diagonally, the back support part a is placed relative to the position of the center of gravity w of the tile b. , the spacing of the supporting points by a
There is inevitably a difference in size between l ₁ and l ₂ . the result,
There is a difference in the support reaction force of tile b against the left and right back support parts a, a, and tile b is affected by the uneven load.
There was a problem in that deformation occurred during softening during the firing process, and although the product was normal before the firing process, it turned out to be an inferior product after the firing process.

In addition, since the horizontal cross-sectional shape of the left and right back supports a, a (center line in the height direction of the section modulus) forms a certain angle with respect to the load direction (arrow F) when the tile b is propped up, The load exerted a so-called twisting or bending action on the back support part a, and the back support part a was easily deformed. If the back support part a is deformed, it will not be usable because it will promote deformation and distortion of the tile. Furthermore, in the direction of the tile leaning load (arrow F), it is difficult to effectively reinforce the back support part a (Figures 9 and 10), so in the end, the back support part a There was a problem in that the useful life of the holder ran out in a short period of time due to deformation.

Furthermore, it is not possible to lean and hold the tile b in the portions at both ends of the holder, such as those circled in FIG. 10, and these portions become essentially useless portions. Therefore, an attempt was made to utilize the circled area by connecting two or more holders in series, but the connection between the holders would quickly collapse due to small vibrations, shocks, etc. There was a problem in that the tiles that were held in place were distorted and turned out to be unsatisfactory.

In contrast, Jitsugan No. 59-109486, Jitsugan No. 59
In the case of the diagonal type tile firing holder according to No.-109487, the above-mentioned problems have been solved.

However, in the case of this diagonal type tile firing holder,
The tile 3 is held horizontally and propped up almost vertically, but as shown by the solid line in FIG. 11, the lower part of the tile 3, which was normal before the firing process, becomes curved as shown by the two-dot chain line after the firing process. The problem has become apparent that products often end up being inferior products.

The reasons and causes can be broadly classified into the following two types.

The first reason is thought to be that the quality of the china clay, which is the raw material for roof tiles, has generally deteriorated, and its high-temperature yield strength during the firing process is so low that it cannot support the roof tiles' own weight, resulting in distortion that appears in the form of curvature.

The second reason is that the lower front edge of the tile 3 is supported by the lower end support part 2, and the back surface is approximately 1/2 of the total height of the tile.
It is supported at a slightly lower position by the back support part 1, and the whole body is held upright in a substantially vertical position. Therefore, the own weight W of the tile 3 acts as a bending force on the lower part of the curved tile. On the other hand, since the high-temperature yield strength of the roof tile 3 decreases during the firing process, it is thought that the synergistic effect of this is to cause concentrated bending between the fulcrums P and Q.

Therefore, the purpose of this invention is basically to provide the configuration and features of the holder for firing tiles of the diagonal type according to the previous Utility Application No. 59-109486 and No. 59-109487, and to provide a holder for firing tiles in the firing process. This prevents tiles that were in good condition before becoming defective due to distortion after the firing process.
Another object of the present invention is to provide an improved holder for firing tiles of a diagonal array type, which has a structure that allows even defective tiles that are distorted before the firing process to be corrected into normal tiles without distortion through the firing process.

Means for Solving the Problems As a means for solving the above-mentioned problems, the diagonal type tile firing holder of this invention has the following features, as examples of which are shown in FIGS. 1 to 7: The back support part 1 of the tile 3 is provided on a line substantially perpendicular to the leaning direction C, and the lower end support part 2 is provided to support the front edge of the lower end of the tile 3. Regarding the diagonal type tile firing holder, which is held in large numbers leaning at a predetermined angle, the tile contacting surface 1a of the back support part 1 is shaped into a concave curved surface that almost matches the curvature of the tile 3 in its normal state when it is in the leaning position. Formed.

Function: In the case of this diagonal type tile firing holder, the tile 3 is held with its lower end front edge in contact with the lower end supporter 2 and with its upper back surface leaning against the pair of left and right back supporters 1, 1. Since the pair of back support parts 1, 1 are provided on a line substantially perpendicular to the leaning direction C of the tile 3, the tile 3 can be placed against the pair of left and right back support parts 1, 1 in a well-balanced manner. The leaning load can be naturally applied approximately equally to the left and right back support parts 1, 1. Therefore, the tile 3 is hardly deformed or distorted due to uneven leaning load.

In addition, the horizontal cross-sectional shape of the back support portion 1 (center line in the height direction of the section modulus) is parallel to the direction of the leaning load of the tile 3 (direction of arrow C in Fig. 2), that is, the direction with the largest section modulus, Since it is provided in the form, it has excellent strength and allows for economical design. Furthermore, there is no risk that the load of the tile 3 will twist or bend the back support part 1, and therefore the back support part 1 will be less likely to be deformed or strained, and the holder will have an excellent service life.

On the other hand, as shown in Fig. 2, the tiles 3 are arranged in the row direction A.
The width of the tile row is reduced to about 800% of the length of the tile 3 because it is held at an angle of about 60 degrees. Therefore, on the one hand, it is possible to improve the thermal efficiency by narrowing the frontage inside the furnace, and on the other hand, there are advantages in terms of space, such as preventing accidents such as roof tiles sliding against the wall inside the furnace or falling down.

Next, as shown in FIG. 3, the lower back of the tile 3 placed against this holder is
Supported tightly and closely. Therefore, even if the quality of the raw materials for the tile 3 is somewhat inferior or the high-temperature yield strength during the firing process is reduced to a certain degree, and even if the own weight W of the tile 3 acts as a bending force, the lower back surface of the tile 3 is supported by the tile abutment surface 1a while being constrained in a fixed form, so that distortion (bending) never occurs. That is, there is no problem such as tiles that were normal before the firing process becoming defective after the firing process.

In addition, even if the tile 3 is a so-called defective product with a distortion in the lower back surface of the tile 3 that is different from that of a normal product before the firing process, the tile abutment of the back support part 1 will be damaged when the high-temperature yield strength decreases during the firing process. It is deformed and supported so as to follow the contact surface 1a, and as a result, after the firing process, there is also a correction effect in which it is corrected to a normal product.

(Example) Next, a preferred embodiment of this invention will be described.

First, FIGS. 1 to 4 show a holder for firing tiles of a diagonal type manufactured as a cast product of heat-resistant steel (or a molded product of ceramic or the like).

In the figure, 1 is the back support part of the tile, and 2 is the lower end support part.

The tiles 3 are tilted at an angle of approximately 60 degrees with respect to the row direction, that is, the left-right direction (arrow A) in FIG. On a line approximately perpendicular to the direction of arrow C in Figure 2 (after all, in the direction of the tile rows (arrow A)
They are installed as two pillar-shaped bodies that stand upright at an interval of approximately 137 mm (on a line approximately 60 degrees from the center).

Furthermore, in parallel to the direction C of leaning the roof tile 3, on both ends of a vertical underframe 4 having a length of about 130 mm and having a rod shape with a substantially mountain-shaped cross section, A series of horizontal underframes 5, 5 each having a length of about 56 mm and having a rod shape with a substantially mountain-shaped cross section are formed in series, and at each intersection (corner) where these vertical underframes 4 and horizontal underframes 5 intersect, a back Support parts 1, 1 are roof tiles 3
The section modulus is largest in the direction in which it is propped up, and it is symmetrically erected as a columnar body with approximately equal strength. Its height is about 74mm. 6 in the figure is
These are reinforcing ribs that extend in the same direction as the vertical frame 4 on the inner surfaces of the back support parts 1, 1.

On the other hand, the lower end support part 2 is placed on the vertical underframe 4 adjacent to the front and at a position where the approximate center of the lower front edge of the tile 3 comes into contact, approximately 3 mm closer to the front than the side surface of the vertical underframe 4.
Assuming that the roof tile 3 bulges out to the extent that it does not come into contact with the back of the rear support parts 1 and 1 adjacent to the front, the roof tile 3 has a height of 15 mm, a width of 30 mm, and a thickness of 7 mm. It is provided as a small plate-like protrusion.

In other words, the illustrated holder requires a rectangular underframe 4, 5, a pair of back support parts 1, 1 provided thereon, and one lower end support part 2 to the minimum necessary to hold one roof tile 3. It is a component of the unit. Adjacent structural units share the vertical underframe 4, and the rear support parts 1, 1 are shifted in a stepwise manner little by little so that they form two rows parallel to the row direction of the roof tiles 3. (The number of units is arbitrary.) Continuously,
It is constructed to be able to hold four roof tiles.

Therefore, there is no unnecessary or wasted portion at both ends of the holder for holding the tile leaning against it as in the conventional case. The tile 3 is held leaning against the pair of left and right back supports 1, 1 with its lower end front edge in contact with the lower end support 2 within the range of each constituent unit. , 1, the tile 3 can easily balance the load by leaning against it quite naturally. Therefore, deformation and distortion of the roof tile 3 due to imbalance in the load against which the roof tile 3 is placed can be prevented in a very natural manner of use.

In addition, the back support part 1 and the horizontal underframe 5 are oriented parallel to the load direction of the tile 3 (direction of arrow C in FIG. 2),
Since it is provided in the form, it is advantageous in terms of strength, allows for economical design, and has an excellent service life.

Of course, since the tile 3 is held at an angle of 60 degrees with respect to the direction of the arrow A in Fig. 2, the width of the row of tiles is the same as that of the tile 3.
It can be reduced to approximately 86% of the length of , providing space advantages.

Next, the front and rear tile contact surfaces (side edges) 1a, 1a (Fig. 3) of the back support 1 are normal tile 3.
It is formed as a concave curved surface that matches the curvature in the leaning position.

Therefore, when the tile 3 is held leaning against this diagonal type tile firing holder, the lower back side of the tile 3 is
As shown in FIG. 3, it is held in close contact with the tile abutment surface 1a of the back support portion 1. Therefore, even if the quality of the raw materials for the tile 3 is somewhat inferior or the high-temperature yield strength during the firing process is reduced to a certain extent, and even if the own weight W of the tile 3 acts as a bending force, the lower back surface of the tile 3 Since it is supported while being subjected to regular restraint by the tile contact surface 1a, it will never be distorted or bent. That is, there is no problem such as the tiles 3 becoming defective after the firing process.

In addition, even if the tile 3 is a so-called defective product with a distortion in the lower back surface that differs from that of a normal product before the firing process, the back support part 1 The tile is deformed and supported so as to follow the tile abutment surface 1a of the tile, and as a result, after the firing process, there is also a correction effect in which the tile is corrected to a normal product.

(Second Embodiment) The diagonal type tile firing holder shown in FIG. It is characterized by a built-in configuration.

That is, it is most preferable that the lower end support part of the tile 3 supports the central part of the lower end front edge of the tile 3 as in the first embodiment. However, it is also possible to arrange two on the left and right as in this embodiment, or to have a larger number. In some cases, it may be not just a protrusion, but a long surface or linear configuration.
Alternatively, it is also possible to have a configuration in which such long surfaces or lines are formed as an aggregate of a large number of protrusions.

(Third Embodiment) The structure of the diagonal type tile firing holder shown in FIGS. 6 and 7 is basically the same as that of the first embodiment. However, the tile abutment surface of the back support part 1 is formed in a concave curved form in which the envelope B (FIG. 7) of the plurality of convex parts 15 matches the curvature of the lower back side when the tile 3 is in a normal leaning position. It is characterized by the following points.

That is, in the case of unglazed tiles, the tile abutment surface 1a has a concave curved surface formed by a continuous line (surface) as in the first embodiment.
is rather preferable. However, in the case of glazed tiles, it is desirable that the glaze-coated surface have as few and small contact points as possible with the holder. This is to prevent the glaze from peeling off at the contact points with the holder after the firing process, causing scratches and deterioration in quality or defective products.

In this regard, in the case of the tile abutting surface of this embodiment, the back surface of the tile 3 has a plurality of convex portions 15 in the form of a concave curve that matches the curvature of a normal tile...(In extreme cases, it can also have a jagged shape)
Since the contact point is supported by a glaze, it can be easily separated even if the contact point is on a glazed surface, and there are almost no problems such as peeling off of the glaze, damage, and defective products.

(Fourth Embodiment) The diagonal type tile firing holder shown in FIG. The structure includes a gate-shaped back support portion 11 formed by bending, and tile contact surfaces 12, 12 made of heat-resistant round steel bars. In addition, the gate-shaped lower part of the back support part 11 adjacent to the front is substituted for the lower end support part of the tile.

The gate-shaped back support part 11 is arranged substantially perpendicular to the direction in which the tile is propped up, and leg parts 13, 13 at both lower ends thereof, which are oriented parallel to the direction in which the tile is propped up, are fixed to the base plate 10 by welding.

In the illustrated example, the tile contact surfaces 12, 12 are formed by bending the tips of the legs 13, 13 upward and into a concave arc shape that matches the curvature of the tile in a normal standing posture. However, the same tile contact surface 12
Alternatively, a steel rod or the like separate from the back support portion 11 may be processed and fixed by welding or the like. The usage method and effects of this holder are exactly the same as in the second embodiment.

(Other Examples) (Part 1) Although each of the above-mentioned examples is illustrated with a configuration of a cast product made of heat-resistant steel (or ceramics), the present invention is not limited to this. For example, a press-formed product, a welded assembly made by processing and welding heat-resistant round steel bars, or a product made by combining casting, pressing, and welding methods (such as the example shown in Figure 8). ) is also fine.

(Part 2) Furthermore, the back support portion 1 is not limited to the illustrated plate-like upright shape and structure. For example, a pair of back support parts 1 facing each other on the left and right,
It is also possible to have a structure in which the upper parts of the tiles 1 are connected, or a structure in which only the tile abutting surface 12 is made of a separate member as shown in FIG.

(Part 3) In each of the embodiments shown in FIGS. 1 to 8, the pair of left and right back support parts 1, 1 that commonly support the same tile have the same configuration, but this is not the case. . If you don't mind the inconvenience, the pair of left and right back support parts 1, 1
The tile abutting surface 1a of one of the back support parts 1 is formed into a concave curved surface formed by a continuous line (surface) as shown in FIG. The tile contact surface 1a is the sixth
As shown in the figure or FIG. 7, the envelopes B of the plurality of convex portions 15 may be formed in a concave curved shape.

(Operations and Effects of the Invention) As described above in detail together with the embodiments, in the case of the diagonal type tile firing holder of this invention, the back support parts 1, 1 of the tile are in the direction in which the tile 3 is propped up. Since the tile 3 is provided on a line substantially perpendicular to c, the roof tile 3 is naturally supported against the back support portions 1, 1 with the leaning load being well balanced. Therefore, the same tile 3 is caused by the uneven load of the tile during the tile firing process. There are no defects that result in deformation or distortion resulting in defective products.

Moreover, the back support parts 1, 1 of the holder have a configuration that has the largest section modulus against the load of the roof tile 3, and can be easily reinforced with ribs, etc.
It can be economically designed and has an excellent service life.

Furthermore, due to its structure as a diagonal type holder, there is no wasted part in holding tiles, making it economical and easy to use.

Next, in the case of this diagonal type tile firing holder, the tile contacting surface 1a of the back support part 1 is formed into a concave curved shape that almost matches the curvature of the tile 3 in its normal state when it is in the leaning position. When the tile 3 is held upright, the lower back side of the tile is attached to the tile abutment surface 1a or the convex portion 1 of the back support portion 1 as shown in FIG. 3 or FIG.
5. It is held in close contact with... Therefore, even if the quality of the raw materials for the tile 3 is poor, even if the high-temperature yield strength during the firing process is reduced to a certain degree, and even if the own weight W of the tile 3 acts as a bending force, the lower part of the tile 3 The back surface is uniformly supported while being constrained in a regular manner by the tile contact surface 1a, and is never distorted or bent. That is, problems such as the curvature of the lower part of the tile becoming distorted during the firing process and resulting in defective products do not occur.

In addition, even if the tile 3 is initially a defective product with a distortion different from that of a normal product, when the high-temperature yield strength decreases during the firing process, the tile abutment of the back support part 1 The product is deformed and supported so as to follow the surface 1a, and as a result, a correction effect is achieved in which the product is corrected to a normal product.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a diagonal type tile firing holder which is the first embodiment of this invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view, Fig. 4 is a cross-sectional view taken in the direction of - Figure 5 is a perspective view of a holder for firing tiles of the diagonal type according to the second embodiment of this invention, and Figures 6 and 7 are perspective views and front views of the holder for firing tiles of the diagonal type according to the third embodiment. , FIG. 8 is a perspective view of the fourth embodiment, and FIGS. 9 to 11 are a perspective view, a plan view, and a front view of the conventional example.

Claims (1)

[Claims for Utility Model Registration] (1) The back support portion 1 of the tile 3 is provided on a line substantially perpendicular to the leaning direction C of the tile 3, and the lower end support portion 2 supporting the lower front edge of the tile 3 is provided. In a diagonal type tile firing holder in which a large number of tiles 3 are held leaning at a predetermined angle with respect to the row direction A, the tile contacting surface 1a of the back support part 1 is in contact with the tile 3 in its normal state. A holder for firing diagonal tiles, characterized in that the holder is formed in a concave curved shape that substantially matches the curvature in a leaning position. (2) The tile abutment surface 1a of the back support portion 1 described in claim (1) of the utility model registration claim has a plurality of convex portions 15.
A holder for firing tiles of a diagonal type, which is formed in a concave curved shape in which the envelope line B of the tile 3 substantially matches the curvature of the tile 3 in a normal standing position. (3) In a pair of left and right back support parts 1 that commonly support the same tile 3, the tile abutment surface 1a of one of the back support parts 1 has a concave curved shape that matches the curvature of the tile in a normal leaning position; The tile abutment surface 1a of the other back support part 1 is characterized in that the envelope B of the plurality of convex parts 15 is formed into a concave curved surface shape that almost matches the curvature of the tile 3 in a normal standing posture. A holder for firing diagonal tiles as described in claim (1) of the utility model registration claim.