JP6306094B2 - Groove cover suitable for waterways crossing slopes - Google Patents

Description

  The present invention relates to a side groove lid that is placed on a water channel such as a U-shaped side groove. In particular, the present invention relates to a side groove lid that is suitable for placement on a side groove disposed in a small step across the middle of a slope or slope.

  On automobile roads and railway lines, if you follow the natural terrain, it will wave violently up and down each time you reach a valley or hilly area. And there are many scenes where routes are formed on the embankment.

  Such embankments are constructed with slopes that are inclined at an angle in advance so as to have a stable gradient so as not to collapse around them. In other words, when viewed in cross-section, the mountain skirts spread left and right as slopes. However, in the case of embankment, the slope length of the stable slope is determined according to the height of the mountain, and the slope is not formed in one step from top to bottom. There are many scenes where a small step is provided in the middle of the slope to form a multi-step. Now, the reason why the slender small step (dog running) is provided on the middle of this slope is to ensure the stability of the slope in this way. In many cases, the drainage is arranged in such a way as to lie on the side groove over the direction.

  And in order to keep the slope of embankment stably, rainwater needs to be drained appropriately so that the embankment does not collapse. Therefore, a road and a railroad run on the top of the embankment, and a gutter is arranged along the side of the road. When the drainage from the side gutter is collected in a drainage basin provided at an interval on the side of the road, it goes down the slope through the vertical gutter and is discharged under the embankment. Further, even in the small step provided in the middle of the slope, rain water descending the upper slope is received by the side groove provided in the long side of the small step, and water is introduced to the vertical side groove.

  These slopes are often planted with turf or grass, and there are many scenes where trees grow, including the surrounding area. As a result, sediments such as fallen leaves often flow into the gutter along with rainwater. However, when these flow in, the side grooves are likely to close.

  Therefore, in order to prevent the side groove from being blocked, in general, it is possible to place a concrete side groove lid block so as to straddle the upper surfaces of both side walls of the side groove block, but if it is covered, it will be like a culvert. This means that rainwater cannot be fully taken into the gutter in the first place. However, it can be said that such a simple method of covering cannot be used.

  Therefore, in order to ensure the inflow of rainwater and ensure visibility, there are many places where a concrete grid-like iron grating lid is placed. However, in general, such an iron grating is manufactured by casting, and its weight is rather heavy, and the price is much higher than that of a concrete block. Therefore, it is difficult to select it in the first place. Furthermore, there is no need to hold down by such weight in a place where the vehicle runs on top of the roadway and the gutter lid is not blown off, and there is a strong demand for cost reduction. Moreover, the grating by casting can be said to be over-spec in a place where it is not necessary to be exposed to human eyes such as a slope.

  In addition, the grating lid is generally installed on the upper plane, and if flat fallen leaves accumulate on the lattice, the lid will be covered at once with each fallen leaf. . Then, since it becomes very difficult to pass water inside, it is difficult to apply to mountainous areas. In particular, considering the manpower to maintain the side grooves of slopes such as the slopes of slopes, it is difficult to employ because the frequency of maintenance due to this blockage should be reduced as much as possible.

  Therefore, a grating that is placed across the upper surfaces of both side walls of the drainage groove, and a synthetic resin substrate in which peaks and valleys are alternately bent in the flow direction of the drainage groove; A grating or the like has been devised in which a protrusion for preventing displacement is provided at a position in contact with the side wall of the drainage groove on the back surface of the substrate (see, for example, Patent Document 1).

JP 2006-9558 A

  However, as described above, in the case of a side groove lying in the longitudinal direction, such as a dog run provided in the middle of a slope, even if the upper plane is covered with a simple grating, it is not sufficient. This is because the upper plane of the water channel crosses the middle of the slope almost horizontally, so that if a large amount of fallen leaves that have slid down the slope accumulate on it, they are easily blocked. Then, the rainwater hardly flows into the water channel, and the rainwater flows down to the lower slope as it is. And the method of providing a peak part and a trough part in the flow direction of a drainage groove of the structure as described in Patent Document 1 is still not sufficient. This is because the rainwater that rushes to the side groove of the dog run enters from the side of the groove so as to be orthogonal to the flow of the side groove, and the device in the flow direction hardly works in such a case. Since the fallen leaves simply covered the upper surface and covered it, it did not make sense and could not be said to be sufficient.

  Furthermore, since local short-term heavy rains such as the recent guerrilla heavy rains are a large amount of rainfall of about 100 mm / h, in order to prevent the slope from collapsing, it is arranged over the length of the dog run along the slope. The role played by the drainage of the ditches is great. Moreover, in heavy rain, a large amount of fallen leaves pushes it, making it easy to block. Then, since frequent maintenance of the deposit on the grating is necessary, it can be said that normal grating is difficult to apply in terms of maintenance frequency.

  In addition, cast grating gratings are generally heavy and not easy to transport, but are lighter in situations where the vehicle is not likely to run over and fly away. In addition, since casting takes time to manufacture because the mold is prepared and melted, a simple structure is also desired, and the cost increases.

  Therefore, the problem to be solved by the present invention is that drainage can be drained into the side groove without being clogged with deposits such as fallen leaves, which is suitable for a water channel such as a side groove provided to cross the slope in the middle of the slope. It is to provide a groove lid having a structure that is lightweight, strong and easy to manufacture and is placed on top of both side walls of a side groove.

  The first means for solving the problem of the present invention is that the center of the groove lid made of a metal plate that covers from the upper end of one side wall of the open channel to the upper end of the other side wall becomes higher in the longitudinal direction. On one of the slopes, there is a small scale piece in a state where the left side of the right side is cut into a U-shape and the upper side is bent up in the front direction when the slope is viewed from the front. A groove cover characterized in that a large number of small holes are arranged at intervals in the direction, and a large number of through holes are arranged at least on the other slope.

  The center is formed so as to be higher in the longitudinal direction when the ridge line of the mountain shape is formed in the longitudinal direction and the down slopes are formed on the left and right of the ridge line, and the cross section is formed so that the center becomes higher. Are curved in an arc shape, and there are cases where slopes curved from the central longitudinal direction toward the left and right lower ends are respectively formed.

  Accordingly, a second means for solving the problems of the present invention is characterized in that the cross section provided with slopes on the left and right of the ridgeline in the central longitudinal direction has a mountain-shaped protrusion. The groove lid according to 1 means.

  The third means for solving the problem of the present invention is that the groove lid made of a metal plate covering from the upper end of one side wall of the open channel to the upper end of the other side wall is the center of the arc-shaped groove lid cross section. An arc is formed so that the longitudinal direction is higher, and one of the curved slopes of the arc is cut in a U-shape on the lower side and the left side of the right side when the slope is viewed from the front, and the upper side is bent upward. A large number of small scale pieces in a state of being formed are spaced apart in the longitudinal direction of the slope, and a large number of through-holes are disposed at least on the curved slope on the opposite side. It is a groove lid.

  The fourth means for solving the problem of the present invention is that the longitudinal ends of the groove cover are separated from a plurality of cuts at intervals from the outer wall of the upper end of the channel toward the position of the inner wall of the upper end of the channel. Folding flaps are arranged, and these flaps are along the horizontal flap folded horizontally so as to be placed on the upper end of the channel at the position of the inner wall of the upper end of the channel, and along the inner wall of the upper end of the channel The groove cover according to any one of the first to third means, characterized in that vertical flaps folded in a vertical direction are alternately provided.

  When the groove cover of the present invention is placed on the open channel, a large number of small scale pieces are lifted from the slope in the outward direction and the front direction on one slope side of the groove cover. On the lower slope, an opening with a soot by small scales is formed. Then, since the small scales projecting outward make it difficult to block the armpit opening by catching fallen leaves etc., it becomes a three-dimensional opening, and there is a space that can appropriately guide rainwater from the opening to the inside of the water channel It is maintained and drainage capacity can be maintained. Therefore, the area around the waterway is less likely to overflow with rainwater. In addition, since the drainage capacity is maintained to a certain level even when the fallen leaves are held, the maintenance frequency can be reduced as compared with a conventional grid-type grating or the like.

  In addition, since the groove lid has a high slope in the center, when a large amount of rainwater flows into the slope with small scales, sediments such as fallen leaves are caught on the small scale pieces, so A large amount of inflowing rainwater has a three-dimensional opening at the bottom of the coral and is guided to the waterway. In addition to that, the fallen leaves are retained, so only the inflowing rainwater is in the upper through-hole. The water will be led to the waterway. Furthermore, since fallen leaves and the like are captured by the small scale pieces, only the rainwater gets over the center of the groove lid, but when the rainwater goes down the slope on the opposite side, the rainwater is guided and drained so as to drop into the water channel from the through hole. It will be. Thus, even if a large amount of rainwater flows in, the entire groove cover is not easily blocked by fallen leaves, and rainwater can be drained appropriately as compared with a conventional flat groove cover.

  Furthermore, when a large amount of rainwater flows in from the upper stage side of a waterway (for example, U-shaped side groove) provided in a small stage of dog running across the slope, the rainwater descending on the slope rushes from one side of the groove lid. It will be. At this time, if the groove cover of the present invention is installed with the slope of the flanged opening with a small scale facing the upper stage side of the side groove, the center of the groove cover is a raised groove cover. The rainwater can be drained into the channel over time while keeping the rainwater to some extent on one side of the groove lid. Furthermore, fallen leaves and the like are captured by the lower scale pieces, and only rainwater is drained from the upper through-hole to the internal water channel, so that the drainage capacity is sufficiently ensured. Furthermore, since rainwater that has flowed to the opposite slope beyond the center is drained from the small through hole on the opposite slope side to the water channel, it can be used for drainage without effectively blocking more than half of the groove lid. Therefore, when draining from the groove lid to the water channel, it is possible to avoid the upstream rainwater from flowing into the downstream slope and promoting the collapse of the slope.

  Further, the groove lid of the present invention has cuts having a length corresponding to the thickness of the channel side wall at intervals at both ends in the longitudinal direction, and the plate between the cuts is folded into a valley fold or a mountain fold. A large number of folding flaps formed in this way, a vertically folded mountain flap that fits inwardly facing the inner surface of the water channel side wall, and an upward folding surface that is placed in contact with the upper end of the water channel side wall. The horizontal flap of the bent valley is repeated. Then, the groove lid is not only placed on the upper end of the water channel side wall, but the vertical lid facing the inner surface of the side wall of the water channel makes it difficult for the groove lid to be blown left and right from the water channel. Since it can be fitted without being flowed in this way, even if rainwater flows in a large amount and rainwater flows into one slope, such as a three-dimensional underarm opening, the rainwater pressure flows into the groove lid. It can be continued and placed on the water channel without shifting the groove lid to the left or right. Therefore, even when a large amount of rainwater flows in, the groove lid can be functioned without being applied.

  And since vertical mountain fold flaps and horizontal valley fold flaps can be obtained just by cutting and bending a single metal plate, it is very easy to process and does not require casting molds. Has a structure. Therefore, since the cost is low and the investment load on manufacturing equipment is low, the structure is suitable for variation production, such as being easy to introduce in small lot production.

  If the cross-section of the groove is a semi-cylindrical shape that has a circular cross-section as in the third means, the angled opening of the small-scaled scaly opening located on the lower side of the dome is steep. When the heel is raised to a level, the opening degree becomes large. Therefore, a large opening is obtained with a large space around the protruding ridge and a space. In addition, since the angle at which the ridge protrudes from the opening varies between the lower stage and the middle stage, it does not easily fall into a situation where it is too open and closed, and it becomes easy to ensure drainage to a certain water channel. Furthermore, since the rising of the lower slope is steeper than the certain slope of Yamagata, it can also be a trap for accumulating deposits such as fallen leaves.

It is a perspective view from the plane side of the groove lid of a 1st embodiment. It is a perspective view from the bottom face side of the groove cover of 1st Embodiment. It is the front view which looked at the groove cover of 1st Embodiment from the upstream. It is the figure which looked at the groove cover of 1st Embodiment from the longitudinal direction. It is (a) AA sectional view and (b) BB sectional view of a slot lid of a 1st embodiment. The figure which shows the mode of the rainwater inflow from a slope to a groove cover. The figure (a) shows a state in which a large amount of rainwater flows in during normal times, (b) in raining, and (c) in heavy rain. It is a figure which shows the state which installed the groove cover of 1st Embodiment in the small side groove of the slope. It is a figure which shows a mode that the vertical groove | channel arranged on the slope, the small step (dog running) in the middle of the slope, and the groove are installed there. It is a figure which shows the state after punching a small hole etc. by the die-cutting in the flat metal plate before bending to a groove cover.

  Embodiments of the present invention will be described below as appropriate with reference to the drawings. In the following description, the groove cover when the central longitudinal direction has a mountain-shaped ridge line is described as an example, but instead of forming the central longitudinal direction to be higher in a mountain shape, the semi-cylindrical is to be higher in the central longitudinal direction. In the case of forming in a shape, it is only a curved slope and can be explained in the same manner, and a common point is that a through hole or a scaly opening is provided on each of the left and right curved slopes. Also, the semicircular arc can be obtained by forming it into a semi-cylindrical shape at the same time as die cutting by plating.

  First, as a premise, the open channel where the groove cover of the present invention is applied is a channel in which the upper part consisting of the bottom surface and the left and right side walls is opened. A typical example of such a water channel is a general U-shaped side wall made of a concrete block. The groove lid is passed between the upper ends of the left and right side walls of the water channel, and is placed on the upper ends of the left and right side walls. The groove lid is placed in the longitudinal direction of the water channel. You can also follow.

  Next, the metal plate used for the groove cover of the present invention may be a metal plate material having a thickness of about 3 to 6 mm from a thin plate of less than 3 mm, and the material thereof is stainless steel and has corrosion resistance. Steel, aluminum or an alloy thereof can be suitably applied. Considering that it has a certain degree of strength and durability, but has good workability and workability such as transportation and installation, a lightweight thin plate is preferable. Then, the groove lid of the present invention cuts these flat plate materials into appropriate sizes, gives small holes and cuts by die cutting or cutting, and then performs bending by plating, A desired groove lid shape by bending a vertical flap of a mountain fold inserted into the water channel so as to face the inner surface of the water channel side wall and a horizontal flap of a valley fold for placing the groove lid on the upper end of the water channel side wall Can be obtained.

  The through small hole can form an opening on the flat plate material by punching a metal plate material such as punched metal. It is possible to manufacture in large quantities by preparing a punching die in advance of the size of the plate material and punching a metal plate. Also, the U-shaped incision on the small scale side can be manufactured by punching a metal plate into a U-shape or U-shape by punching. The incised portion of the scaly can then be made into a beveled opening by bending the base of the incising portion to cause the scaly. In addition, the vertical length that can be folded into mountain folds and valley folds at both ends in the longitudinal direction of the groove lid, with a gap approximately equal to the width of the side wall of the waterway being cut from the end in the short direction. A flap (mountain folding flap) and a horizontal flap (valley folding flap) can be formed. This cut may also be formed by punching with a mold.

  In addition, a large number of through-holes are opened on at least one slope of the groove lid, but there may also be openings above other slopes. The opening with scaly scissors may be provided from the middle of one side of the slope to the lower side, and the slope opposite to the upper side of the slope may be a punched through hole.

  As an embodiment of the present invention, FIG. 1 shows a groove lid (1) whose central longitudinal direction is raised in a mountain shape. FIG. 2 shows the groove lid (1) from the back side. This groove lid (1) is applied to a U-shaped side groove (13) that traverses the middle of the slope that is installed in the small dog run (20) in the middle of the slope (19) as shown in FIG. Is. In FIG. 7, a mode that a groove cover (1) is installed in this U-shaped side groove (13) is shown.

  The slope (20) is a steep slope when the slope is formed from one slope from the top to the bottom, making it difficult to use for safety and maintenance. Therefore, a small step (dog running) (20) having a width of about 50 to 150 cm is provided for every 5 m. A side groove of a drainage groove is provided in this small step as needed. Without such a step, the water flow in the vertical drainage channel shown in FIG. If the flow rate increases too much, it will be a problem. Therefore, considering the drainage of rainwater from the top road surface through the vertical drainage channel, it is necessary to provide a small step in the middle to reduce the flow velocity and ease it. Grooves are also required for slope protection in the sense of draining rainwater.

  The groove lid (1) shown in FIG. 1 and FIG. 2 is made of a metal plate material, and has an upstream slope (2) and a downstream slope (3) with a ridge line (7) in the central longitudinal direction as a boundary. Therefore, the cross section of the lid has a mountain shape, and both ends of the mountain hem are horizontally folded (10) and vertically folded (10). 11) are alternately provided. The slope (2) on the upstream side has a plurality of small scales (4) rising up to a horizontal height from the slope to the horizontal level on the lower two stages, and is like a heel, with an opening ( 5) has a large opening, and a small scale piece (11) protruding above the opening (5) forms a three-dimensional opening. The upper slope (2) has a large number of through-holes (8) arranged in four stages at intervals, and the downstream slope (3) has a large number of through-holes (8). It is arranged at intervals over 9 stages. As shown in FIGS. 1 and 5, the through holes (8) are arranged so that the upper and lower positions overlap each other by skipping one stage, and the opening positions are shifted so that the opening positions do not overlap each other. is there.

  The size of the groove lid varies depending on the width of the water channel. For example, if the channel width is 30 cm, the groove lid (1) has a total width of 40 cm and a total length of 90 cm. Is 29 cm and the total height of the mountain is 5.5 cm. And the bending width | variety of the vertical flap (11) for fitting to the side groove side wall inner surface (16) is 10 cm in width, and the notch depth is 5.5 cm. Similarly, the horizontal flap (10) placed on the side groove sidewall upper end (15) has a lateral width of 14 cm and a notch depth of 5.5 cm. Four horizontal flaps (10) and three vertical flaps (15) are alternately provided, and the horizontal and vertical orders are aligned for the left and right flaps. That is, there is a notch with a width of about 6 mm between the flaps. Next, the lower two-stage scale pieces (11) on the upper slope (2) are provided with 14 pieces on the upper stage and 13 pieces on the lower stage, and the size of one piece is 3 cm in width, The depth of cut is 2 cm. The through hole (8) has a diameter of 1.5 cm, and 16 stages in a row and 15 stages in a row are alternately repeated.

  As shown in FIG. 9, this groove lid (1) has a 1.5 mm thick stainless steel plate that is punched to open a through hole (8), and a U-shaped incision for a small scale piece (4). Similarly, (6) is also provided by punching, and a notch (9) having a width of 6 mm and a depth of 5.5 cm between the horizontal flap and the vertical flap is also punched out in the state of a flat plate (12).

  Then, the flat plate (12) shown in FIG. 9 is bent into a mountain fold in the central longitudinal direction to form a ridge line (7) in the central longitudinal direction, and the center is formed high in a mountain shape. The small scale pieces (4) on the slope (2) are raised until they become horizontal like a cocoon to form an opening (5) under the heel. Further, the slits (9) on both sides in the longitudinal direction are formed as a vertical flap (11) by folding one flap up to the vertical, and a horizontal flap (10) is formed by folding the adjacent flap into the horizontal. The groove lid (1) shown in FIG. 1 can be easily and repeatedly obtained only by such bending.

  Now, when the groove lid (1) is installed in the U-shaped side groove (13) of the dog run (20) on the slope (19), as shown in FIG. First, rainwater from the water enters the U-shaped side groove (13) from the underarm opening (5). At that time, even if there is a fallen leaf (18) or the like, as shown in FIG. 3, it does not get caught in the small scale piece (4) protruding horizontally forward, and the opening (5) is not blocked. Will be secured. Moreover, since the fallen leaves remain caught on the small scale pieces (4), they do not get over the slope (2) on the upstream side. As shown in FIG. 6 (c), when the inflow of rainwater increases due to local heavy rain, the rainwater reaches the through hole (8) on the slope (2) on the upstream side, and from there, the water channel It will be dripped. The water is drained not only from the upper slope but also from the small through-hole (8) opened on the downstream slope (3). However, since the fallen leaves (18) are trapped in the vicinity of the small scale pieces (4), the through holes (8) are not easily blocked.

  Furthermore, when placing the groove lid (1) in the U-shaped side groove (13), the vertical flap (11) is fitted along the side groove sidewall inner surface (16) of the U-shaped side groove (13). Even if fallen leaves or the like are accumulated, the groove lid (1) can appropriately stay on the U-shaped side groove (13) without being caused to flow downstream by the load. Therefore, a large amount of rainwater that rushes to the periphery of the groove lid (1) is temporarily retained, but is not blocked, so that the rainwater does not inadvertently overflow to the downstream slope, and the groove lid (1) The water can be drained sequentially into the waterway.

DESCRIPTION OF SYMBOLS 1 Groove lid 2 Slope on the upstream side 3 Slope on the downstream side 4 Scale pieces 5 Opening under the arm 6 U-shaped incision 7 Ridge line in the central longitudinal direction 8 Through small hole 9 Notch 10 Horizontal flap 11 Vertical flap 12 Flat plate 13 U type Side groove 14 Side groove sidewall 15 Side groove sidewall upper end 16 Side groove sidewall inner surface 17 Rain water 18 Fallen leaves 19 Slope 20 Dog running 21 Roadway

Claims (4)

The groove lid made of a metal plate that covers from the upper end of one side wall of the open channel to the upper end of the other side wall is formed so that the center thereof becomes higher in the longitudinal direction,
On one of the slopes, a small scale piece in a state in which three sides of the right side, the lower side, and the left side of the right side are cut in a U shape and the upper side is bent up in the front direction as a hooked opening is formed in the longitudinal direction of the slope. Many are arranged at intervals,
A groove lid characterized in that a large number of through holes are arranged at least on the other slope. The groove cover according to claim 1, wherein the lateral cross section provided with slopes on the left and right sides of the ridge line in the central longitudinal direction has a mountain-shaped protrusion. The groove lid made of a metal plate covering from the upper end of one side wall of the open channel to the upper end of the other side wall is formed with an arc so that the central longitudinal direction of the arc-shaped groove lid cross section is higher,
On one curved slope of the arc, a small scale piece in a state in which three sides of the right side, the lower side, and the left side are cut in a U shape and the upper side is bent up in the front direction when viewed from the front is a sloped opening. Many are arranged at intervals in the longitudinal direction,
A groove lid characterized in that a large number of through-holes are arranged at least on a curved slope on the opposite side. Both ends in the longitudinal direction of the groove lid are arranged with bent flaps formed of a plurality of cuts at intervals from the outer wall of the upper end of the water channel toward the position of the inner wall of the upper end of the water channel. A horizontal flap folded in a horizontal direction so as to be placed on the upper end of the water channel side wall at a position of the inner wall of the upper end portion, and a vertical flap folded in a vertical direction along the inner wall of the upper end of the water channel side wall are alternately provided. The groove lid according to any one of claims 1 to 3, wherein

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