JP2008127786A - Precut tile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To dispense with the operation of computing individual cutting dimensions, by modularizing the types of tiles, in the use of a precut tile. <P>SOLUTION: A corner portion of the tile with standard dimensions is cut a by a predetermined width at an angle which a corner ridge or a valley core forms with an edge of eaves. When the plurality of types of precut tiles different in cutting width are arranged in a plurality of tiers, the working length of the tile is determined from the angle which the corner ridge or the valley core forms with the edge of eaves, and the working width of the standard tile, so that a repeatable unit module can be formed; the cutting width of each tile is determined from a value of the working length and the arrangement position of the zigzag-arranged tile; and the corner portion of the tile is precut by the cutting width in a factory. More specifically, a right-angled triangle, which has the angle formed with the edge of eaves by the corner ridge or the valley core, the horizontal width of which is 2.5 times greater than the working width of the tile, and the vertical height of which is three times greater in dimension than the working length of the tile, is assumed so that the size of the unit module can be set. The number of the types of the precut tiles of the unit module is set at 5, and the number of the arrangement tiers is set at 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a precut roof tile used in the case of constructing a trough portion formed in a corner ridge portion or a portion where two roofs intersect in a key shape, for example, in a ridge roof.

  Conventionally, when tiled roofs such as those shown in FIG. 1 are formed at predetermined angles with respect to the eaves at corner ridges and valleys, tiles cut on one side of the tiles at a predetermined width and angle Use tiles to tile the tiles. In this case, the tiles are cut at the site on the roof. The work is to roughly cut the tile larger than the required dimensions and fix it, and then cut a cutting line at a few centimeters from the corner ridge or valley core. Pulling along the line, using a metal fence, or cutting with a grinder.

  Such work largely depends on the skill of the craftsman, and due to the difference of the skill of each craftsman, it took extra time and the yield was poor. In addition, in the case of cutting with a grinder, a lot of dust is generated by cutting on the roof, which causes a great deal of inconvenience to the neighborhood. In addition, due to the large amount of dust at the time of cutting, the health of workers and the contamination of the site have also become problems. Moreover, since a cut piece remains, it was also a problem that a lot of waste materials appeared on site. For this reason, for example, as shown in Patent Document 1, a precut construction method has been proposed in which cutting dimensions are calculated in advance according to architectural drawings, and roofing is performed using roof tiles that have been cut into predetermined dimensions in advance in a factory.

JP 2006-104719 A

  However, since the construction method described in the above-mentioned Patent Document 1 calculates the cutting dimensions of the trough roof tiles in the middle of roofing and precuts at the factory, the cutting dimensions are calculated and precut for each individual construction. A process is required, and much labor is required.

  The present invention has been made in view of such circumstances, and in order to solve the various problems described above that occur when working in the field when roofing a corner ridge part or a valley part, a precut roof tile is used, In that case, the kind of roof tile is modularized and the pre-cut roof tile which made the calculation work of an individual cutting dimension unnecessary is provided.

  In addition, when roofing is performed using the above-mentioned precut tiles in corner ridges and valleys, when the roof after construction is viewed from the eaves side, the cut is caused by tile distortion, dimensional error, return gradient due to tile thickness, etc. The surface may be observed unevenly, the appearance may be poor, and the design may be unfavorable.

  Therefore, an object of the present invention is to provide precut roof tiles that are devised to enhance the appearance of corner ridges and valleys in roofing using precut roof tiles.

  In the present invention, in order to solve the various problems described above, a roof tile is used at the beginning of a corner ridge portion or a valley portion formed by crossing roof surfaces having a predetermined slope, and the corner ridge or valley core is connected to the eaves. The means of cutting the corner of the standard-sized roof tile by a predetermined width at the angle to be formed was adopted.

  Then, in order to form a unit module that can be repeated when multiple types of precut roof tiles with different cutting widths are arranged in multiple stages, the angle of the roof tile is determined from the angle that the corner ridge or valley core forms with the eaves and the working width of the standard roof tile. The working length is determined, the cutting width of each tile is determined from the value of this working length and the arrangement position of the staggered roof tiles, and the corners of those roofs are cut in advance at the factory by the above cutting width. Adopted means.

  Specifically, a right triangle with an angle formed by the corner ridge or valley core with the eaves, a horizontal width of 2.5 times the working width of the roof tile, and a vertical height of 3 times the working length of the roof tile is virtually assumed. This is the size of the unit module, so that the number of pre-cut roof tiles in the unit module is 5 and the number of steps is 3, so that the roof tiles can be determined from the angle that the corner ridge or valley core forms with the eaves and the width of the roof tiles. The working length is determined, and the first precut roof tile is cut to the first precut roof tile by cutting at an angle that the corner ridge or valley core forms with the eaves edge, starting from about 1/2 the roof working width. Cut at a position determined from the distance from the core and fix it next to the first precut roof tile, and fix it next to the first precut roof tile. The roof tile is cut on the extension of the cutting line of the first pre-cut roof tile and the third pre-cut roof And a fourth precut roof tile, and a roof tile that is similarly fixed on the first stage by being shifted by half the working width is cut into an extension of the cutting line of the first precut roof tile to form a fifth precut roof tile. Repeatedly so that the roof was sowed.

  Separately, in the pre-cut roof tile, a means is adopted in which each cutting angle is set to an angle that is 1 to 3 degrees smaller than the angle formed by the corner ridge or the valley core with the eaves.

  The pre-cut roof tile of the present invention according to the above configuration is cut in advance at the factory at the corners of the roof tile at the angle that the corner ridge or valley core forms with the eaves tip, so it is possible to omit cutting work on site It becomes. Therefore, unlike conventional methods, work time is not required due to the skill of the craftsman, and the yield does not deteriorate. In addition, since no work is performed at the site, the generation of dust can be greatly reduced, the site and the vicinity are not contaminated, and health damage to workers can be prevented. Furthermore, a great effect can be expected, for example, the amount of waste materials at the site can be greatly reduced.

  Also, by constructing a unit module by combining multiple precut roof tiles, it is possible to roll up the corner ridges or valleys with only a few types of standardized precut roof tiles. Can be omitted, and it is only necessary to prepare multiple types of pre-cut roof tiles, which greatly improves work efficiency.

  Furthermore, if the angle at which the corner ridges and valley cores form with the eaves is known in advance, the cutting width of the individual roof tiles that make up the unit module can be easily calculated based on the working width and length of the roof tile. Can be cut at the factory in advance.

  On the other hand, if each tile is cut by setting the cutting angle to 1 to 3 degrees smaller than the angle at which the corner ridges and valley cores form with the eaves, the distortion, dimensional error, and tile thickness Since the return gradient due to taste can be corrected, when viewed from the eaves side, the apparent error of the tile's staircase is absorbed by the elevation angle, making it look straight, contributing greatly to aesthetics To do.

  Hereinafter, a preferred embodiment of a precut roof tile according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view of an example of the roof of a ridge building. Reference numeral 1 denotes a trough portion formed by intersecting the roof surfaces 2 and 3 having a predetermined slope in a key shape. In the present embodiment, a description will be given of a case where the roof tiles are rubbed from the left to the right and from the bottom to the top, starting from the valley portion in the valley portion 1. Moreover, in this embodiment, the aspect which staggered the F-shaped (flat roof tile) roof tile prescribed | regulated to JIS specification is illustrated.

  FIGS. 2 and 3 show an example of the arrangement of precut tiles at the first end of the rolling when the F-shaped tile 5 is rolled up to the left side of the valley core 4 at the intersection of the 5/10 slope roof surface. is there. Note that the underlap portion is omitted. In FIG. 3, the working length of the F-shaped roof tile is 285 mm and the working width is 306 mm. However, this is an example and can be changed according to individual conditions. In FIG. 2, 4 is a valley core, and its angle (α in FIG. 1) is determined by the roof slope. Reference numerals 5a to 5e denote precut roof tiles, each of which cuts the lower right corner of an F-shaped roof tile at an angle (180 degrees -α) that the valley core 4 forms with the eaves. Accordingly, the cut surface of the roof tile is parallel to the valley core 4. In this cutting operation, since the angle is known in advance, cutting is performed in advance in a factory. Then, this precut tile is brought to the site and roofing is performed. This eliminates the conventional on-site cutting work, reliably eliminates dust problems and worker health hazards during cutting, and eliminates unnecessary waste. Can be greatly reduced.

  Next, the cutting dimensions of the roof tile will be described in detail. In the present invention, the pre-cut roof tiles are limited to five types depending on the cutting location, and the combination is set as a unit module so that roof tiles can be made by repeating this unit module. That is, FIG. 2 shows an example in which five types of precut roof tiles 5a to 5e are arranged in three stages and this is repeated three times as a unit module. This unit module will be described with reference to FIGS. 3 and 4. When the angle formed by the valley core 4 with the eaves N is θ, tan θ = b / a. Here, since it is staggered, the horizontal width a of the virtual right triangle (the size of the unit module) in which the cut surface of the tile in the figure forms the hypotenuse is 2.5 times the working width, and the vertical height b is the working length. 3 times that. From this relationship, if θ is known, the working width is determined by the roof tile to be used, and therefore the working length of the roof tile is determined. Therefore, first, the dimension of the eaves tile 5a is determined, and based on this, the position of the first pier 6 is determined by subtracting the dimension of the eaves tile from the working length. The interval between the positions of the second pier 7 and the third pier 8 is determined by the working length of the roof tiles, and the fourth and subsequent berths are fixed at the same interval.

  Next, the lower right corner of the roof tile is cut at an angle θ that the valley core forms with the eaves edge, starting from a position that is about ½ of the working width of the roof tile, thereby forming a first pre-cut roof tile 5a. Assuming that the cut surface of the first precut roof tile 5a is fixed to the first pier 6 at a predetermined distance from the valley core 4, the size of the roof tile adjacent to the right side, that is, the cutting position, is naturally determined. However, in this case, since it becomes a fairly small triangular piece when it is arranged side by side, it is preferable to have a size that can secure two nail holes for fixing by shifting upward by a predetermined distance. Thereby, the cutting position of the 2nd precut roof tile 5b is determined. Next, since the roof tile fixed to the second pier 7 is fixed by being shifted by half of the working width, the third pre-cut roof tile 5c is cut by cutting the extension of the cutting line of the first pre-cut roof tile 5a depending on the position. The cutting position is determined. Similarly, the cutting position of the fourth precut roof tile 5d adjacent to the right of the third precut roof tile 5c is also automatically determined. Next, since the roof tile fixed to the third pier 8 is fixed by being shifted from the fourth pre-cut roof tile 5d by a half of the working width, the extension of the cutting line of the first pre-cut roof tile 5a is cut from that position. Thus, the cutting position of the fifth precut roof tile 5e is determined. The roof tile fixed to the next fourth pier (not shown) has the same shape as the first pre-cut roof tile 5a in the same way. Therefore, the first to fifth pre-cut roof tiles 5a to 5e are used as unit modules. By repeating, it can be rolled up along the valley core 4 to the end. In addition, in FIG. 4, although the actual cutting dimension of the F-shaped roof tile including an underlap part is illustrated, it is not limited to this, In fact, the angle (above-mentioned) of the valley core 4 by the roof gradient. θ) changes, and the cutting dimensions are changed accordingly.

  As mentioned above, if the angle of the valley core is determined by the roof gradient and the corner of the tile is cut according to the angle while considering the working width and working length of the tile, five types of pre-cut tiles are used. By forming a unit module and repeating the unit module, the valley core portion can be rolled up. And since the angle of a trough is known beforehand by drawing etc. about this cutting dimension, a cutting dimension can be computed based on the numerical value, and it can cut in a factory beforehand. As a result, the above-mentioned problems relating to the technical capabilities of craftsmen and the generation of dust can be solved.

  Each of the pre-cut roof tiles described above is basically formed by cutting a normally fired F-shaped roof roof tile into a predetermined size at a factory, but a roof tile partially missing at the time of firing can also be used. In other words, according to the presented example, the lower right portion of the roof tile is cut to a predetermined size to form a precut roof tile, so if there is a defect during firing at the lower right corner of the roof tile, that portion is cut and discarded. Therefore, after cutting, it can be used without any change from normal roof tiles, and partially broken roof tiles that have been discarded in the past can be reused. Thereby, it is possible to greatly reduce the manufacturing cost of the precut roof tile.

  In addition, although the said embodiment demonstrated the case where the left side was rolled from a valley core, it can think similarly about the right side from a valley core, and in this case, a valley core forms a lower left corner part of a roof tile with an eaves tip. What is necessary is just to create five types of precut roof tiles by cutting at an angle.

  Moreover, in the said embodiment, although only the valley part was demonstrated, the case where a corner ridge part is spread can be considered similarly. That is, in the corner building part, the corner part of the standard size tile is cut by a predetermined width at the angle that the corner building forms with the eaves edge, and a unit module is formed by combining a plurality of types to form the unit module part. do it. Thereby, the various problems that occur when the corner building portion is rolled can be solved.

  Next, another embodiment will be described with reference to FIG. In the embodiment, the tile cutting angle θ is the same as the angle that the valley core forms with the eaves tip, and the cut surface of the tile is cut in parallel with the valley core to form five types of precut roof tiles. In the embodiment, the cutting angle is set to be 1 to 3 degrees smaller than the angle and cutting is performed. If the cutting angle of the tile is the same as the angle at which the valley core forms with the eaves, the distortion of the clay tiles and the dimensional error, when viewed from the eaves side, the error of the staircase is emphasized on the contrary. As a result, there was a problem that the appearance of the design deteriorated. Therefore, if each tile is cut by setting the cutting angle of the tile to be 1 to 3 degrees smaller than the angle at which the valley core actually forms with the eaves, the strain, dimensional error, and thickness of the tile will be reduced. It was found that the return gradient due to can be corrected. And when it sees from the eaves end side, when it sees from the eaves side, it absorbs the apparent error of the step part of a tile by an elevation angle, and there exists an effect which looks like a straight line, and contributes aesthetically greatly.

  In each of the embodiments described above, the case where the F-shaped roof tiles are staggered has been described as an example. However, when the F-shaped roof tiles are streaked, or when other J-shaped or S-shaped roof tiles are used, there is a basic case. The general idea is the same. In other words, the cutting width is calculated so that the unit module can be formed in consideration of the angle formed by the corner ridges and valley cores with the eaves, and the working width and working length of the roof tiles, and cut in advance at the factory. Thus, the various problems described above can be solved.

It is a top view which shows an example of a group building roof. The example of arrangement | positioning of the pre-cut roof tile at the beginning of thatching of a trough part is shown. The specific example of arrangement | positioning of the pre-cut roof tile of a unit module is shown. The example of the actual cutting shape of F-shaped roof tile is shown. The example which changes the cutting angle of a roof tile is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Valley part 2 Roof surface 3 Roof surface 4 Valley core 5 Precut tile 6 1st pier 7 2nd pier 8 3rd pier

Claims (4)

  A tile used at the beginning of a corner ridge or trough that is formed by crossing roof surfaces with a predetermined slope, and the corner of a standard-sized tile is a predetermined width at an angle that the corner ridge or valley core forms with the eaves. Precut roof tiles characterized by cutting only.   The work length of the roof tile is determined from the angle that the corner ridge or valley core forms with the eaves and the working width of the standard roof tile so as to form a repeatable unit module when multiple types of precut roof tiles with different cutting widths are arranged in multiple stages. The cutting width of each tile is determined from the value of this working length and the arrangement position of the tiles to be staggered, and the corners of these tiles are cut in advance at the factory by the above cutting width. Pre-cut roof tiles.   This is a unit of a right triangle that has an angle formed by the corner ridge or valley core with the eaves, whose horizontal width is 2.5 times the working width of the roof tile, and whose vertical height is 3 times the working length of the roof tile. The size of the module is determined, and the working length of the tile is determined from the angle formed by the corner ridge or valley core with the eaves and the working width of the roof tile so that there are 5 types of pre-cut roof tiles in the unit module and 3 steps. The first precut roof tile and the corner ridge or valley core are cut at an angle that the corner ridge or valley core forms with the edge of the eaves, starting at a position that is about 1/2 the working width of the roof tile. A second precut roof tile that is cut at a position determined from the distance between the first precut roof tiles and fixed next to the first precut roof tile, and the roof tiles that are fixed side by side by a half of the working width, one step above the roof tile working length. Cut the extension of the cutting line of the first pre-cut roof tile and the third pre-cut roof tile And the fourth pre-cut roof tile, and the roof tile that is similarly fixed on the first stage by being shifted by half the working width is cut along the extension of the cutting line of the first pre-cut roof tile to form the fifth pre-cut roof tile. The pre-cut tile according to claim 2, wherein the roof is made by repeating the steps.   The precut roof tile according to any one of claims 1 to 3, wherein each cutting angle is set to an angle smaller by 1 to 3 degrees than an angle formed by a corner ridge or a valley core with an eaves tip.

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