JP5064182B2 - Resin roof tile - Google Patents

Description

  The present invention relates to a resin roof rail used for spreading tiles on a roof, and more specifically, drainage of rainwater that has infiltrated on the ground is made smoother, and there is no occurrence of bending due to the trapped tiles. Related to the tiles.

  As shown in FIG. 4, when roofing tiles on a roof, tile tiles 1 made of wooden squares are generally used, and tile tiles 1 are arranged in a horizontal direction on a field ground 2 with roofing on field plates. In the state where the upper end bent portion 3a of the roof tile 3 is hooked on the roof tile 1, the roof 3 is fixed by driving a nail 4 from the nail hole of the roof tile 3 toward the roof rail 1 and the field ground 2. Yes.

  By the way, the wooden tile rail 1 may be warped depending on the conditions of the lumbering, the tile 3 may float or shift over time, and when the nail 4 is driven between the grain, cracks occur, After the construction, there is a problem that it is corroded by rainwater that has entered from between the roof tiles 3 and the necessary functions cannot be maintained over a long period of time.

  Further, in the tile frame 1 having a substantially square cross section, as shown in FIG. 4, the tile 3 in which the bent portion 3 a at the front end is hooked on the tile frame 1, the lower surface of the tile frame 1 is one place on the ridge side corner of the tile frame 1. As a result, the roof tile 1 is pulled by the roof tile 3 in the direction of rotation with the roof tile 3 and this causes a burden on the fixing nail 4 and loosens with time. This causes a problem that the roof tile 1 fixed to the field ground 2 bends and the roof tile 3 after construction is displaced.

In order to solve such problems of wooden roof tiles, it is extruded into a substantially square bar shape using foamed resin, and a metal reinforcing material is embedded in the inside, and a draining surface perpendicular to the length direction is embedded in the lower surface. A roof tile having a structure provided with a notch has been proposed (see, for example, Patent Documents 1 to 3).
Japanese Utility Model No. 6-10022 Japanese Patent No. 3711004 Japanese Patent No. 3940100

  The above-described foamed resin roof tiles have partially solved the problems of wooden roof tiles, but new problems have been found as listed below.

(1) Since the above-described foamed resin roof tile uses a metal reinforcing material, the cost increases.
(2) Since the metal reinforcing material is used, it causes electric corrosion with the nail for fixing the roof tile, thereby reducing the life of the nail.
(3) Since the foamed resin and the metal reinforcing material are integrally molded, they are not suitable for recycling.
(4) The notch provided on the underside of the tile pier is too good for water to escape, so if rainwater that has entered the ground from between the tiles is stored on the ridge side against the tile pier, go to the eaves side. As a result, the water flow of the islands becomes intermittent, and as a result, island-like residual water is formed on the side of the roof of the tile pier. The occurrence of odors and plagues.

  Accordingly, the object of the present invention is to solve the above-mentioned problems of the resin roof tiles, and by using a single foamed resin, it is possible to cope with recycling at a low cost, and the remaining water on the field ground. It is an object of the present invention to provide a resin roof tile that is free from occurrence and does not generate bending due to a tile that is hooked.

  In order to solve the problems as described above, the present invention is a roof tile that is extruded and molded into a substantially square cross section using a foamed synthetic resin, and a convex strip and a bottom surface at the center position in the width direction on the top surface of the roof tile. A groove is formed at the center in the width direction over the entire length in the length direction, the width and height of the ridge are set smaller than the width and depth of the groove, and the groove is sandwiched between the bottom surfaces of the roof tiles. Notch portions for drainage that are orthogonal to the groove are provided at regular intervals in the length direction at the positions on both sides, and this notch portion is a bulging surface that is shallower than the groove and whose upper surface curves downward. The configuration is adopted.

  The width of the cutout portion along the length of the roof tile is set in a range of 0.8 to 1.0 times the total width of the roof tile, and a downward bulge surface formed on the top surface of the cutout portion. Can have a structure in which the maximum downward bulging amount is set between 1/30 and 1/600 with respect to the width of the notch.

  Also, the line connecting the upper end corner of the ridge side of the ridge and the upper end corner of the ridge side of the roof tile may be set to be 10 ° to 8 ° with respect to the horizontal line, It can be set as the structure where slipperiness is given to the upper surface of.

  Here, for example, polystyrene can be exemplified as the foamed resin which is a material for forming the tile rail, and the size of the cross section of the tile rail may be set according to the tile to be used. The anti-slip provided on the upper surface of the ridge can be formed by providing unevenness with a small pitch arranged in the width direction along the length direction.

  According to the present invention, since the tile rail is extruded with a single foamed resin, no other materials are required, so it can be recycled at a low cost and does not include metal members, so that electric corrosion of the tile fixing nail occurs. Can be prevented.

  In addition, since the ridges are provided on the top surface of the roof tiles, the roof tiles are supported by being in contact with the ridge side corner of the roof tiles and the ridge side corners of the ridges with the roof tiles fixed on the ground. As a result, the contact surface of the roof tiles increases, and the roof tiles are not pulled by the roof tiles in the direction of rotation to cause loosening of the fixing nails. It is possible to fix the roof tiles stably so that the roof tiles after construction will not be displaced.

  In addition, the upper and lower surfaces of the roof tiles are provided with ridges and grooves on the lower surface, and the width and height of the ridges are set smaller than the width and depth of the groove. If they are stacked, the ridges and grooves will fit into each other, and there will be no misalignment during transportation, so it is possible to prevent the product from falling off due to misalignment, especially when transporting from the ground to the roof. Moreover, since the packaging can be simplified, it is in line with the trend to reduce the amount of garbage on the site as much as possible.

  In addition, when rainwater that has entered from the gap between the tiles flows through the field and accumulates on the part formed by the field ground and the wall surface of the roof of the roof tile, drainage is provided so that it is perpendicular to the groove on the bottom surface of the roof tile. It flows out from the notch part to the eaves side, but this notch part is shallower than the concave groove and its upper surface is a bulging surface that curves downwards, so it suppresses the momentum of water passing through the roof tile This allows rainwater to be temporarily stored in a ditch provided on the underside of the roof tile, and then drained from the notch on the eaves side, so that the water can be drained gently and constantly. It is possible to eliminate the generation of residual water on the ridge side and to suppress the generation of bacteria, bad odors and plagues due to the moist condition of the field.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  As shown in FIGS. 1 to 3, the roof tile 11 is extruded into a long bar shape with a substantially square cross section using a foamed resin. A groove 13 is formed at the center in the width direction over the entire length in the length direction.

  The width and height of the ridges 12 are set smaller than the width and depth of the concave grooves 13, and drainage orthogonal to the concave grooves 13 at positions on both sides sandwiching the concave grooves 13 on the lower surface of the roof tiles. Notch portions 14 are provided at regular intervals in the length direction, and the notch portions 14 are shallower than the concave grooves 13 and are bulged surfaces 15 whose upper surfaces are gently curved downward.

  The upper surfaces of the roof tiles 11 and the ridges 12 are formed on the anti-slip surface 16 by providing irregularities with small pitches arranged in the width direction along the length direction.

  For example, polystyrene is used as the foamed resin as a material for forming the tile rail 11 from the viewpoint of strength, cost, and recycling, and the size of the cross section of the tile rail 11 may be set according to the tile 3 to be used. As described above, the groove 13 has a width of 10 mm and a vertical depth of 5 mm, and the ridges 12 are stacked when the roof tiles 11 are vertically stacked. A line a connecting the ridge-side upper corner of the ridge 12 and the ridge-side upper corner of the roof rail 11 as shown in FIG. However, by setting the angle to be 10 ° to 8 ° with respect to the horizontal line, the angle of the roof tile 3 with respect to the field surface 2 and the line a connecting the corner of the ridge 12 and the corner of the roof rail 11 become substantially equal. , To demonstrate more reliable functions Yes.

  As described above, by forming the ridges 12 so as to be high and wide enough to fit into the grooves 13, if the roof tiles 11 are stacked up and down during transportation of the roof tiles 11, the protrusions 12 and the grooves are formed. 13 fits together and there is no displacement during transportation, so when transporting from the ground to the roof, it is possible to prevent the roof tile 11 from falling off due to the occurrence of displacement, and the packaging is simple. There is an advantage that can be made.

  Further, the upper end corner of the ridge 12 is formed in a gentle arc shape. That is, since the back surface of the roof tile 3 is not a uniform flat surface, it is difficult to adjust the installation surface to the back surface shape of the roof tile 3 if the upper end corner of the protrusion strip 12 is square, If the upper end corner of 12 is a gentle arc, the installation surface can be adjusted to the situation of the back surface of the roof tile 3.

  Moreover, when the roof tile 3 is constructed, if the worker walks on the roof tile 3 and the upper end corner of the ridge 12 is square, pressure concentrates on the upper end corner portion, and the roof tile 3 is cracked. Will trigger.

  On the other hand, if the upper end corner of the ridge 12 is a gentle arc, the concentration of the pressure can be relaxed and the roof tile 3 can be prevented from cracking.

  The notch 14 provided on the lower surface of the roof tile 11 has a width along the length direction of the roof tile 11 set in a range of 0.8 to 1.0 times the entire width of the roof tile 11. The downward bulging surface 15 formed on the upper surface of 14 has a maximum downward bulging amount set between 1/30 and 1/600 with respect to the width of the notch portion 14.

  The tile rail 11 of the present invention is configured as described above, and in order to spread the tile on the roof, as shown in FIG. 3, the tile rail 11 is placed in the lateral direction on the field ground 2 which has been roofed on the field plate. The nail 4 is fixed by driving the nail 4 from the nail hole of the roof tile 3 toward the roof bar 11 and the field ground 2 in a state where the upper end bent portion 3a of the roof tile 3 is hooked on the roof bar 11.

  Since the roof bar 11 has protrusions 12 on its upper surface, as shown in FIG. 3, with the roof bar 11 fixed on the field ground 2, the roof tile 3 protrudes from the ridge side corner of the roof bar 11. As a result, the contact surface of the tile 3 is increased, and the tile rail 11 is not pulled by the roof tile 3 in the rotation direction. Therefore, it is possible to fix the tiles stably so that the fixing nails 4 are not loosened, the tile rail 11 fixed to the field 2 is not bent, and the tiles 3 after construction are not displaced. It becomes possible.

  By the way, when rainwater enters from the gaps between the roof tiles 3, the rainwater flows through the field ground 2 and temporarily accumulates on a portion formed by the field ground 2 and the wall surface of the roof tile 11. 11 is provided with a notch 14 for drainage so as to be orthogonal to the groove 13, so that rainwater flows out from the notch 14 on the ridge side to the notch 14 on the eaves side. .

  Here, the lower surface of the roof tile 11 is flattened, and a notch for drainage is simply provided in the width direction on the lower surface, and this notch is shallower than the concave groove, and the bulging surface has its upper surface curved downward. In the structure just made, since the flow rate of rainwater is slow, the volume of the notch is immediately filled with rainwater, and the field ground on the ridge side is filled with rainwater.

  In view of this, the roof tile 11 of the present invention has a groove 13 extending in the longitudinal direction formed on the lower surface of the roof tile 11, and provided with notches 14 on both sides thereof, so that rainwater that has entered from the ridge-side notches 14 can be removed. After temporarily storing the water in the concave groove 13, the rainwater is drained again at the notch portion 14 on the eave side, thereby allowing the rainwater to flow while maintaining the entire connected state, and eliminating the part of the rainwater flow, Efficient and reliable drainage. Such a water phenomenon is described in, for example, Japanese Patent No. 3508761.

  As a result, it is possible to prevent the island-like residual water from being generated on the field ground 2 on the ridge side of the roof tile 11, and even if the field ground 2 gets wet with rainwater, it can be immediately returned to the dry state.

  Further, the roof tile 11 of the present invention is provided with notches 14 on both sides of the lower surface, the notches 14 are made shallower than the concave grooves 13, and the bulging surface 15 formed on the upper surface thereof has a maximum downward expansion. Since the output amount is set between 1/30 and 1/600 with respect to the width of the notch 14, the flow rate can be reduced without impairing the flow of rainwater.

  Further, in the tile frame 11 of the present invention, the width of the notch portion 14 along the length direction of the tile frame 11 is set to be 0.8 to 1.0 times the entire width of the tile frame 11. Therefore, it is possible to achieve both the rigidity (bending strength) with respect to the bending of the roof bar 11 and the good drainage performance of the notch portion 14.

  Note that if the width of the notch 14 is set to 1.0 times or more of the entire width of the roof bar 11, the rigidity of the roof bar 11 is lowered, and if it is set to 0.8 times or less, drainage is caused by surface tension. Becomes difficult and impairs drainage performance.

The perspective view which shows the resin-made roof tile of this invention (A) is a front view showing a resin roof bar of the present invention, (b) is an enlarged vertical side view taken along arrow bb in (a). Longitudinal side view of the use state in which the roof tile is fixed using the resin roof tile of the present invention Longitudinal side view of the used state where the tiles are fixed using conventional wooden roof tiles

Explanation of symbols

11 roof tiles 12 ridges 13 grooves 14 notches 15 bulging surfaces 16 anti-slip surfaces

Claims (4)

  A tile pier extruded with a foamed synthetic resin to have a substantially square cross section, with the upper surface of the tile pier having a ridge at the center position in the width direction and a groove at the center position in the width direction on the lower surface. The width and height of the ridges are set to be smaller than the width and vertical depth of the groove, and the drainage is perpendicular to the groove at both sides sandwiching the groove on the lower surface of the roof tile. The notch is a resin roof rail having a bulge surface that is shallower than the concave groove and whose upper surface is curved downward.   The width of the cutout portion along the length of the roof tile is set in a range of 0.8 to 1.0 times the total width of the roof tile, and a downward bulge surface formed on the top surface of the cutout portion. 2. The resin roof tile according to claim 1, wherein a maximum downward bulging amount is set between 1/30 and 1/600 with respect to the width of the notch.   The resin roof tile according to claim 1 or 2, wherein a line connecting the top edge corner on the ridge side of the ridge and the top corner on the roof side of the roof tile is set to be 10 ° to 8 ° with respect to the horizontal line. .   The resin roof tile according to any one of claims 1 to 3, wherein the top surface of the roof tile and the ridge is provided with a slip stopper.

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