JP2009138354A - Mounting tool, rainwater storage and penetration tank, and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting tool enabling a worker to attach a groove member to a tank body easily even by manual labor by merely locking a locking part into a tool mounting part and holding a holding part by side plates and capable of achieving excellent construction property. <P>SOLUTION: The mounting tools 10, 50 are used to construct the rainwater storage and penetration tank 100 to be installed under the ground, collect rainwater, and let the rainwater flow outside or penetrate into the ground slowly to attach the groove member 14 to the tank body 12. The tank main bodies 12 are arranged in parallel in the longitudinal direction to form a rainwater storage space 16. The tool mounting parts 24 having a lower face 24a are formed in the tank body 12. The groove member 14 is arranged in the inside of the rainwater storage space 16 to accumulate the sediment flowing into it together with rainwater and is provided with a bottom board 28 laid across the tank main bodies 12 arranged in parallel. The side plates 30 are erected in substantially the vertical direction from both ends in the direction of width of the bottom board 28. The mounting tools 10, 50 are provided with the locking parts 34, 56 and the holding parts 40, 62, respectively. The locking parts 34, 56 are locked in the tool mounting parts 24 formed in the tank main bodies 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mounting jig, a rainwater storage and penetration tank, and a construction method thereof, and more particularly, to a mounting jig, a rainwater storage and penetration tank, and a construction method thereof that attach a groove member to a tank body.

In recent years, due to changes in the environment due to the progress of urbanization, inundation damage due to localized heavy rain and heavy rain during typhoons is increasing. For this reason, measures are taken such as embedding a rainwater storage and penetration tank underground, temporarily storing rainwater, and then flowing out to the outside or slowly penetrating into the ground. For example, in the rainwater storage and penetration tank disclosed in Patent Document 1, a rainwater storage space is formed underground by combining a plurality of filling members vertically and horizontally or vertically. Moreover, in order to accumulate the earth and sand which flowed with rain water, the ditch | groove is formed under the filling member.
JP 2007-16582 [E03F 1/00]

  However, in the technique of Patent Document 1, the concave groove is formed by overlapping and arranging the flange portions at the ends of the adjacent concave groove members and stabilizing them by the weight of the concave groove member. Therefore, when there is unevenness on the bottom surface of the cut groove in which the rainwater storage and penetration tank is provided, the connecting portion of the adjacent groove member is lifted, and a gap is formed. In order to avoid this problem, it is necessary to flatten the bottom surface of the cut groove and adhesively bond the flange portion at the end of the groove member to form a continuous body, which takes time. In addition, when a long groove member extending between adjacent filling members is used due to the structure of the filling member, it cannot be fixed by its own weight, and the finishing accuracy is not good. Therefore, in order to form a groove by providing a long groove member inside the filling member, the groove member must be attached to the filling member by using wood screws, screws, ropes, or the like. Therefore, it takes time for the mounting work.

  Moreover, in the other Example of patent document 1, although the ditch | groove is formed in the downward direction of a rainwater storage penetration tank by the elongate U-shaped groove member, it is necessary to dig deep into the ground for this purpose. Yes, the construction is difficult and the construction cost increases.

  Therefore, a main object of the present invention is to provide a novel mounting jig, a rainwater storage and penetration tank, and a construction method thereof.

  Another object of the present invention is to provide a mounting jig excellent in workability, a rainwater storage and penetration tank, and a construction method thereof.

  The present invention employs the following configuration in order to solve the above problems. Note that reference numerals in parentheses, supplementary explanations, and the like indicate correspondence relationships with embodiments described later to help understanding of the present invention, and do not limit the present invention in any way.

  A first invention is a rainwater storage and infiltration tank that is installed underground and collects rainwater and flows out to the outside or slowly permeates into the ground. In the tank main body, a jig mounting portion is formed on at least one side in the width direction. An attachment jig for attaching a groove member having a bottom plate and side plates rising from both side ends thereof, and is formed integrally with an engagement portion that engages with the attachment portion of the jig, and the engagement portion. It is an attachment jig provided with the holding part to hold | maintain.

  In the first invention, the attachment jig (10, 50) is used, for example, in the rainwater storage and penetration tank (100), and attaches the groove member (14) to the tank body (12). The tank body includes a jig attachment portion (24) formed on at least one side in the width direction, and forms a rainwater storage space (16). The groove member includes a bottom plate (28) and side plates (30) rising from both side ends thereof, and accumulates earth and sand flowing into the tank body. The mounting jig includes a locking portion (34, 56) and a holding portion (40, 62) formed integrally with the locking portion. The mounting jig holds the position of the mounting jig itself by the locking portion being locked to the jig mounting portion. Further, in the mounting jig, the holding part is held in such a state that the side plate of the groove member is sandwiched between the holding part and the jig mounting part. For this reason, the attachment jig can prevent the position of the groove member from shifting by holding the side plate by the holding portion.

  According to the first aspect of the present invention, the groove member can be easily attached to the tank body by manual operation only by locking the locking portion to the jig mounting portion and holding the side plate by the holding portion. Therefore, it is excellent in workability.

  A second invention is dependent on the first invention, and the holding portion sandwiches the side plate between the jig mounting portion.

  In the second invention, the holding portion (40, 62) of the mounting jig (10, 50) is between the jig mounting portion (24) of the tank body (12) and the side plate (30) of the groove member (14). ) However, the term “pinching” here means that the side plate is located between the holding portion of the mounting jig and the jig mounting portion. For this reason, the mounting jig can hold the position of the groove member because the holding plate can hold the side plate even when an external force is applied to the groove member (14), for example.

  According to the second invention, since the holding portion sandwiches the side plate between the holding portion and the jig mounting portion, the position of the groove member can be held.

  A third invention is dependent on the second invention, and the locking portion contacts the lower surface of the jig mounting portion.

  In 3rd invention, the latching | locking part (34,56) formed in the attachment jig | tool (10,50) contact | abuts the lower surface (24a) of the jig attachment part (24) formed in a tank main body. The attachment jig holds the position of the attachment jig itself against an external force in the upward direction by the abutting portion coming into contact with the lower surface of the jig attachment portion. For this reason, even if an upward external force acts on the groove member (14), for example, the attachment jig is in contact with the lower surface of the jig attachment portion, so that the holding portion (40, 62) Can firmly hold the side plate (30).

  A fourth invention is dependent on the third invention, the locking portion further abuts on the outer surface of the jig mounting portion, and the holding portion abuts on the inner surface of the side plate.

  In 4th invention, the latching | locking part (34,56) formed in the attachment jig | tool (10,50) is the lower surface (24a) of the jig attachment part (24) formed in a tank main body, and an outer surface ( 24c). The mounting jig holds the position of the mounting jig itself against the external force in the inner direction and the upward direction by the locking portion coming into contact with the lower surface and the outer surface of the jig mounting portion. The holding portions (40, 62) abut on the inner surface of the side plate (30) of the groove member (14) so as to spread outward. For this reason, the stress of the side plate acts inward and upward, and the position of the groove member can be fixedly held.

  According to the fourth invention, the groove member can be fixedly attached to the tank body.

  A fifth invention is a rainwater storage and infiltration tank that is installed underground and collects rainwater and flows out to the outside or slowly permeates into the ground, and at least one side in the width direction has a jig mounting portion having a lower surface. The tank body to be formed, a groove member that is disposed in the internal space of the tank body, has a bottom plate and side plates that rise from both side ends thereof, a locking portion that contacts the lower surface of the jig mounting portion, and the locking portion integrally It is a rainwater storage penetration tank provided with the attachment jig which is formed and has a holding part holding a side board.

  In 5th invention, a rainwater storage penetration tank (100) is provided with the attachment jig | tool (10,50), the tank main body (12), and the groove member (14), and a groove member is attached to a tank main body with an attachment jig. . The tank body is provided side by side in the longitudinal direction, and forms a rainwater storage space (16). A jig mounting portion (24) having a lower surface is formed on the tank body. A groove member is arrange | positioned in the storage space of rainwater, and accumulates the earth and sand which flowed in with rainwater. The groove member includes a bottom plate (28) straddling the arranged tank bodies. From both ends of the bottom plate in the width direction, the side plate (30) rises upward. The mounting jig includes a locking portion (34, 56) and a holding portion (40, 62). The locking portion comes into contact with the lower surface (24a) of the jig mounting portion (24) formed on the tank body. Further, the holding portion is formed integrally with the locking portion and holds the side plate of the groove member.

  In the fifth invention, since the groove member is attached to the rainwater storage space formed inside the tank body, the ground need not be excavated to provide the groove member. Therefore, it is excellent in workability.

  6th invention is the construction method of the rainwater storage penetration tank which is installed in the basement and collects rainwater and flows out outside or gently penetrates into the ground, and (a) along the installation section of the rainwater storage penetration tank An open groove is formed, and at least two tank bodies are arranged in the open groove, and a groove member is arranged in the internal space of the tank body so as to straddle the tank body arranged in (b) step (a). And (c) a rainwater storage and penetration tank construction method in which the groove member disposed in step (b) is attached to the tank body by an attachment jig.

  In the sixth invention, in step (a), a cut groove is formed along a section where the rainwater storage and penetration tank (100) is installed, and at least two tank bodies (12) are arranged in the cut groove. . In step (b), the groove members (14) straddling the tank main bodies arranged in step (a) are arranged between the jig mounting portions (24) formed in the respective tank main bodies. In step (c), the groove member is attached to an arbitrary jig attachment portion of the arranged tank bodies by the attachment jig (10).

  According to the sixth aspect of the invention, the same effects as those of the first to fifth aspects of the invention can be obtained.

  According to this invention, a groove member can be easily attached to a tank main body also by manual work, and it is excellent in workability.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

  Referring to FIG. 1, a mounting jig 10 according to an embodiment of the present invention is installed in the basement, collects rainwater, and flows out to the outside or gently permeates into the ground. 12 is used to attach the groove member 14 to the groove 12.

  The tank body 12 is made of a synthetic resin such as polypropylene, and is formed by, for example, injection molding. Although the details will be described later, the tank body 12 is provided side by side in the longitudinal direction (direction in which the rainwater storage and penetration tank 100 is provided) and is combined in the vertical direction to form a rainwater storage space 16 for storing rainwater therein. (See FIG. 12).

  As shown in FIGS. 2 to 4, the tank body 12 includes a base plate 18 formed in, for example, a rectangular plate shape. For example, the length in the longitudinal direction of the base plate 18 and the length in the width direction (direction orthogonal to the longitudinal direction), that is, the width are both 500 mm.

  On the upper surface of the base plate 18, support portions 20 that protrude from the four corners of the base plate 18 in a substantially quadrangular prism shape are formed. At the upper end of the support portion 20, a step-shaped fitting portion 22 from which a rectangular parallelepiped protrudes is formed. Here, the fitting part 22 is arrange | positioned so that it can be made to fit with the fitting part 22 of the other tank main body 12 arrange | positioned so as to oppose, for example, and tank main bodies 12 can be combined vertically. .

  In addition, jig attachment portions 24 are formed on both sides of the base plate 18 in the width direction. The jig mounting portion 24 is formed in a rectangular parallelepiped shape and protrudes upward from between the support portions 20. In this embodiment, the jig mounting portion 24 is a portion that is locked to a locking portion 34 of the mounting jig 10, which will be described in detail later, and for holding the tank body 12 when the tank body 12 is lifted. It is a part of. The jig mounting portion 24 is formed with a substantially rectangular parallelepiped opening 26 penetrating the jig mounting portion 24 in the width direction. The upper surface of the opening 26 functions as the lower surface 24 a of the jig mounting portion 24. For example, the vertical length, that is, the height between the upper surface 24b and the lower surface 24a of the jig mounting portion 24 is set to 25 mm.

  In addition, each site | part (the support part 20, the jig attachment part 24, etc.) of the tank main body 12 can also be formed in a hollow shape by uniform thickness.

  The groove member 14 is disposed in the internal space of the tank body 12, that is, the storage space 16 (see FIG. 1).

  The groove member 14 is formed of a synthetic resin such as hard vinyl chloride, and accumulates earth and sand that has flowed in along with rainwater. Although details will be described later, the groove member 14 is arranged over the entire length of the tank main bodies 12 arranged in the longitudinal direction. For example, when eight tank main bodies 12 are arranged, the length in the longitudinal direction of the bottom plate 28 is 4000 mm. . However, the groove member 14 can be appropriately cut according to the length of the tank bodies 12 arranged side by side, or the groove member 14 can be connected by a connecting member (not shown).

  As shown in FIG. 5, the groove member 14 includes a bottom plate 28 formed in a rectangular plate shape. Here, as described above, the groove member 14 is disposed in the internal space of the tank body 12. For this reason, the width | variety of the baseplate 28 is formed smaller than the distance between the jig attachment parts 24, for example, is 150 mm.

  Further, the side plate 30 rises upward from both ends in the width direction of the bottom plate 28. The side plate 30 is formed integrally with the bottom plate 28, and its height is, for example, 150 mm.

  The groove member 14 is attached to the tank body 12 by the attachment jig 10 (see FIG. 1).

  The mounting jig 10 is made of a synthetic resin such as hard vinyl chloride, and is formed by extrusion molding or injection molding. As shown in FIG. 7, the mounting jig 10 includes a main plate portion 32 formed in a rectangular plate shape. For example, the length of the main plate portion 32 in the longitudinal direction is 100 mm, and the width is 57 mm.

  A locking portion 34 is formed at one end in the width direction of the main plate portion 32. The locking portion 34 is formed integrally with the main plate portion 32 and includes a vertical plate portion 36 and a horizontal plate portion 38. The vertical plate portion 36 protrudes downward from the main plate portion 32 and has a height of, for example, 270 mm. Further, the horizontal plate portion 38 protrudes substantially horizontally from the lower end of the vertical plate portion 36 in the direction of the holding portion 40 described later, and its width is, for example, 20 mm.

  Further, a holding portion 40 that protrudes downward from the main plate portion 32 is formed at the other end in the width direction of the main plate portion 32. The holding part 40 is formed integrally with the main plate part 32 and has a height of, for example, 270 mm. A reinforcing portion 42 having, for example, a quadrangular prism shape is formed on the locking portion 32 side of the upper end portion of the holding portion 40. The reinforcing portion 42 is formed integrally with the main plate portion 32 and the holding portion 40, and reinforces the protruding holding portion 40 by increasing the contact portion between the main plate portion 32 and the holding portion 40. However, the reinforcing portion 42 may not be formed if the strength of the holding portion 40 is sufficient. In order to further improve the strength of the holding part 40, the inside of the reinforcing part 42 may be formed in a cavity, and a reinforcing member made of a metal such as iron may be separately inserted into the cavity.

  A method for attaching the groove member 14 to the tank body 12 using the attachment jig 10 will be described below with reference to FIGS.

  First, as shown in FIG. 9, the tip of the horizontal plate portion 38 of the locking portion 34 is positioned in the opening 26 of the jig mounting portion 24.

  Next, as shown in FIG. 10, the mounting jig is arranged so that the upper end of the side plate 30 is sandwiched between the holding portion 40 and the jig mounting portion 24 while the side plate 30 of the groove member 14 is slightly expanded outward. 10 is rotated inward of the tank body 12. However, the term “pinching” here means that the side plate 30 is located between the holding portion 40 of the mounting jig 10 and the jig mounting portion 24 of the tank body 12.

  Then, as shown in FIG. 11, the holding portion 40 is brought into contact with the inner surface of the side plate 30. At this time, the horizontal plate portion 38 of the locking portion 34 contacts the lower surface 24 a of the jig mounting portion 24, and the vertical plate portion 36 contacts the outer surface 24 a of the jig mounting portion 24. In this way, the attachment of the groove member 14 to the tank body 12 is completed.

  The locking portion 34 of the mounting jig 10 abuts on the lower surface 24 a and the outer surface 24 c of the jig mounting portion 24 of the tank body 12. Thereby, the attachment jig 10 holds the position of the attachment jig 10 itself against the external force in the inner direction and the upward direction. Further, the holding portion 40 formed integrally with the locking portion 34 abuts so as to spread the inner side surface of the side surface 30 of the groove member 14 outward. For this reason, the stress of the side plate 30 acts inward and upward, and the position of the groove member 14 can be fixedly held. That is, according to the attachment jig 10, the groove member 14 can be fixedly attached to the tank body 12.

  Thus, according to the attachment jig 10, the groove member 14 can be easily attached to the tank body 12 by manual work without using a tool or the like, and the workability is excellent.

  As described above, the attachment jig 10 is used to attach the groove member 14 to the tank body 12 in the rainwater storage and penetration tank 100. Here, the construction method of the rainwater storage penetration tank 100 provided with the attachment jig | tool 10, the tank main body 12, and the groove member 14 is shown below.

  First, along the section in which the rainwater storage and penetration tank 100 is installed, the ground is excavated to a depth at which the rainwater storage and penetration tank 100 can be installed, and an open groove is provided. The excavated soil is carried out by a truck, for example. And earth retaining sheet piles etc. for preventing surrounding soil from collapsing are installed on the side surface of the cut groove.

  Next, the 1st inspection hole 102 is provided in the starting point of the installation area of the rainwater storage penetration tank 100 (refer FIG. 13). Then, the tank main body 12 of the number corresponding to the length over the installation area of the rainwater storage penetration tank 100 is arranged in a longitudinal direction in the cut groove. And the groove member 14 straddling the arranged tank main body 26 is arranged on the base plate 18 of the tank main body 12. Finally, a second inspection hole 104 is provided at the end point (see FIG. 13). At this time, one end of the groove member 14 is connected to the first inspection hole 102, and the other end is connected to the second inspection hole 104. However, the first inspection hole 102 and the second inspection hole 104 may be provided after the tank body 12 is installed.

  Next, the groove member 14 is attached to the tank body 12 using the attachment jig 10 by the method described above.

  Next, as shown in FIG. 12, the other tank body 12 is disposed so as to face the tank body 12 to which the groove member 14 is attached. And the mutual fitting part 22 is fitted and the tank main bodies 12 are combined in the vertical direction.

  Then, the side plate 106 and the top plate 108 are provided on the tank body 12. However, although details are omitted, the side plate 106 is fixed so as to be fitted from the side of the tank body 12 combined in the vertical direction, and the top panel 108 is pinned in a pin hole formed in the base plate 18 of the tank body. Stopped. Note that the top plate 108 is not provided at a site to which the inflow pipe 110 is connected.

  Next, the tank main body 12 inflow pipe 110 combined in the vertical direction is connected. As shown in FIG. 13, the inflow pipe 110 connects a rainwater trough 112 into which rainwater from the outside flows in and the rainwater storage and permeation tank 100 to form a plurality of gaps (not shown) formed in the base plate 18 of the tank body 12. The rainwater flows into the storage space 16 via.

  Then, the tank body 12 is covered with the water permeable sheet 114. As the water permeable sheet 114, a sheet that allows water to pass but does not allow earth and sand to pass therethrough is desirable. For example, a long-fiber polyester nonwoven fabric or the like is used.

  Finally, the construction for filling back the cut groove and providing the rainwater storage and penetration tank 100 in the ground is completed.

  In such a rainwater storage and penetration tank 100, when rainwater flows into the rainwater storage and penetration tank 100 from the inflow pipe, rainwater is temporarily stored in the rainwater storage space 16 formed by the tank body 12. It permeates gently into the surrounding ground through the formed gap and the water-permeable sheet 114. Moreover, the earth and sand which flowed in with rainwater accumulates in the groove member 14 attached to the tank main body 12.

  In the rainwater storage and penetration tank 100, when removing the sediment accumulated in the groove member 14, a hose is inserted into the first inspection hole 102 provided at the start point of the rainwater storage and penetration tank 100, and the tip of the hose A high-pressure jet water stream is jetted from the nozzles, and the earth and sand are moved to the second inspection hole 104 by the water pressure. At the same time, the earth and sand can be removed by sucking with a hose such as a vacuum car inserted into the second inspection hole 104.

  Thus, in the rainwater storage and penetration tank 100, since the groove member 14 is attached in the storage space 16 formed by the tank main body 12, it is not necessary to excavate the ground to provide the groove member 14, and the workability is improved. Excellent and can also reduce the construction cost.

  Moreover, in the rainwater storage / osmosis tank 100, since the groove member 14 which straddles the arranged tank main body 12 is used, the groove member 14 does not float by the deviation | shift of the foundation unevenness, the construction error of the tank main body 12, etc. Therefore, there are no gaps or irregularities in the groove member 14, and the earth and sand accumulated in the groove member 14 can be removed without hindrance.

  Furthermore, in the rainwater storage and penetration tank 100, the groove member 14 is fixedly attached to the tank body 12 by the mounting jig 10. For this reason, for example, when the groove member 14 is lifted, the tank bodies 12 arranged side by side can be lifted together. Similarly, when the tank body 12 is lifted, the other tank bodies 12 arranged side by side can be lifted together. Thereby, at the time of construction of the rainwater storage penetration tank 100, the tank main body 12 arranged in the cut groove can be easily moved. Furthermore, on the ground, the tank main bodies 12 can be arranged side by side and the groove member 14 can be attached, and then placed in the cut groove. Therefore, the construction procedure and the like can be selected according to the site, and the workability is excellent.

  In addition, in the above-mentioned Example, although the rainwater storage penetration tank 100 was formed in one layer of the tank main body 12 combined with the vertical direction, it is not necessary to be limited to this, On the tank main body 12 combined with the said vertical direction Furthermore, the tank main bodies 12 may be arranged and the tank main bodies 12 may be stacked in the vertical direction. Similarly, a plurality of tank bodies 12 may be arranged in the width direction and arranged in the horizontal direction.

  Moreover, in the above-mentioned Example, although the tank main body 12 of the number corresponding to the length over the installation area of the rainwater storage permeation tank 100 was arranged, it is not necessary to be limited to this and the tank main body 12 connected with multiple beforehand Can also be used.

  Furthermore, in the above-described embodiment, the mounting jig 10, the tank body 12, and the groove member 14 are all formed of synthetic resin, but it is not necessary to be limited to this. For example, it can be formed of a metal such as iron or aluminum.

  Furthermore, in the above-described embodiment, the opening 26 penetrating the jig mounting portion 24 in the width direction is formed, but it is not necessary to be limited to this. To the last, the opening 26 is a part formed so that the lower surface 24a is formed in the jig attaching part 24 and the tank body 12 can be easily grasped. Thus, for example, if only the lower surface 24a is formed on the jig mounting portion 24, the outer surface of the jig mounting portion 24 and a part below the upper end are recessed inward, and the upper surface of the recess is It can also function as the lower surface 24 a of the jig mounting portion 24.

  In the mounting jig 50 according to another embodiment of the present invention shown in FIGS. 14 to 16, the shape of the locking portion 56 and the holding portion 62 and the mounting method to the jig mounting portion 24 are the same as those shown in FIG. Different from the jig 10.

  As shown in FIGS. 14 and 15, the mounting jig 50 includes a vertical plate portion 52. For example, the vertical plate portion 52 is formed in a rectangular plate shape, the length in the longitudinal direction is 100 mm, and the height is 40 mm. A first horizontal plate portion 54 is formed at the upper end of the vertical plate portion 52. The first horizontal plate portion 54 is formed in a plate shape extending outward in the width direction from the upper end of the vertical plate portion 52, and the width thereof is, for example, 34 mm.

  A locking portion 56 is formed near the center of the vertical plate portion 52 in the height direction. The locking portion 56 is formed in a plate shape extending in the same direction so as to overlap the vertical plate portion 52, and, for example, protrudes about 5 mm outward in the width direction. The locking portion 56 includes a protrusion 58 at the upper end thereof. The protrusion 58 has an acute angle θ at the tip and is formed in a substantially triangular cross-sectional shape. The angle [theta] is preferably 60 [deg.] To 90 [deg.], And in this embodiment is formed at about 60 [deg.].

  A second horizontal plate portion 60 is formed at the lower end of the vertical plate portion 52. The second horizontal plate portion 60 is formed in a plate shape protruding inward in the width direction from the lower end of the vertical plate portion 52, and the width is, for example, 31 mm. A holding portion 62 is formed at the tip of the second horizontal plate portion 60, that is, the end portion opposite to the vertical plate portion 52. The holding portion 62 is formed in a plate shape that protrudes downward in a direction substantially parallel to the vertical plate portion 52, and has a height of, for example, 37 mm.

  Moreover, the hollow part 26a is formed in the jig attachment part 24 of the tank main body 12 (refer FIG. 16). The hollow portion 26a is a rectangular cavity formed inside the jig mounting portion 24 when the lower surface of the opening 26 is recessed in a concave shape. For example, the hollow portion 26 a is provided, for example, about 3 mm inside from each of the outer surface 24 c and the inner side surface 24 d of the jig mounting portion 24, and forms a side surface 24 e inside the jig mounting portion 24 in the width direction.

  However, as described above, the jig mounting portion 24 of the tank body 12 can be formed in a hollow shape with a uniform thickness. In this case, the hollow portion 26a is a space that is opened when the lower surface of the opening portion 26 is opened, and the jig mounting portion 24 is connected to each of the outer side surface 24c and the inner side surface 24d of the jig mounting portion 24. It is provided inside the thickness of the component.

  With reference to FIG. 16, a method for attaching the groove member 14 to the tank body 12 using the attachment jig 50 will be described below.

  First, the attachment jig 50 is moved downward while the lower end of the locking part 56 is inserted through the hollow part 26 a of the jig attachment part 24. At this time, the upper end of the side plate 30 is sandwiched between the holding portion 62 and the jig mounting portion 24 while the side plate 30 of the groove member 14 is slightly expanded outward.

  Then, as shown in FIG. 16, the holding portion 62 is brought into contact with the inner surface of the side plate 30. At this time, the locking portion 34 contacts the side surface 24e formed by the hollow portion 26a, and the projection 58 contacts the lower surface 24a of the jig mounting portion 24. Further, the first horizontal plate portion 54 contacts the upper surface 24 b of the jig mounting portion 24, and the vertical plate portion 52 contacts the inner side surface 24 d of the jig mounting portion 24. In this way, the attachment of the groove member 14 to the tank body 12 is completed.

  The locking portion 56 of the mounting jig 50 abuts on the lower surface 24a and the hollow portion 24c of the jig mounting portion 24 of the tank body 12. Thereby, the mounting jig 50 holds the position of the mounting jig 50 itself against the external force in the inner direction and the upward direction. That is, the side surface 24e formed by the hollow portion 26a inside the jig mounting portion 24 functions in the same manner as the outer side surface 24c of the jig mounting portion 24 in the embodiment of FIG. Further, the holding portion 62 formed integrally with the locking portion 56 abuts so as to spread the inner side surface of the side surface 30 of the groove member 14 outward. For this reason, the stress of the side plate 30 acts inward and upward, and the position of the groove member 14 can be fixedly held. That is, according to the attachment jig 50, the groove member 14 can be fixedly attached to the tank body 12.

  As described above, the groove member 14 can be easily and fixedly attached to the tank body 12 by the attachment jig 50 as shown in FIG.

  Further, in the attachment jig 50, when the groove member 14 is attached to the tank body 12, the first vertical plate portion 54 contacts the inner side surface 24 d of the jig attachment part 24 of the tank body 12. Thereby, the attachment jig 50 can hold | maintain the position of the attachment jig 50 itself also with respect to the external force to an outer side direction.

  In each of the above-described embodiments, the jig attachment portions 24 are formed on both sides of the tank body 12 in the width direction, but it is not necessary to be limited to this. For example, if the jig attachment portion 24 is formed on at least one side of the tank body 12 in the width direction, the groove member 14 can be fixedly attached to the tank body 12 by the attachment jigs 10 and 50.

  Further, even if the jig attachment portions 24 are formed on both sides of the tank body 12 in the width direction, it is not necessary to provide the attachment jigs 10 and 50 on all the jig attachment portions 24. For example, mounting jigs 10 and 50 are provided on the jig mounting portion 24 on either side in the width direction of a certain tank body 12 to fix the groove member 14, and the adjacent tank body 12 is opposite to the width direction. The mounting jigs 10 and 50 may be alternately provided in the adjacent tank main bodies 12 such as by providing the mounting jigs 10 and 50 in the jig mounting portion 24 on the side to fix the groove member 14.

  Further, in each of the above-described embodiments, the holding portions 40 and 62 of the mounting jigs 10 and 50 are in contact with each other so that the inner side surface of the side plate 30 of the groove member 14 is spread outward. There is no. Even if the holding portions 40 and 62 and the side plate 30 are not in contact with each other, the side plate 30 may be positioned between the holding portions 40 and 62 and the jig mounting portion 24. For example, even if an upward external force acts on the groove member 14 by lifting the buoyancy due to the inflowing rainwater or lifting the groove member 14, the holding portions 40 and 62 of the mounting jigs 10 and 50 and the tank body 12 are cured. If the side plate 30 of the groove member 14 is positioned between the fixture mounting portion 24, the side plate 30 can be pressed by the holding portions 40 and 62. That is, in this case, only when the groove member 14 is moved, the holding portions 40 and 62 hold the side plate 30 to hold the position of the groove member 14.

  Furthermore, in each of the embodiments described above, in the mounting jigs 10 and 50, the locking portions 34 and 56 are in contact with the lower surface 24a and the outer surface 24c of the jig mounting portion 24, respectively. If the mounting jig 50 can hold its own position, the locking portions 34 and 56 and the lower surface 24a and the locking portions 34 and 56 and the outer surface 24c do not contact each other. May be.

  For example, if the holding parts 40 and 62 and the side plate 30 are not in contact, the stress of the side plate 30 does not act inward. Therefore, even if the locking portions 34 and 56 and the outer surface 24c of the jig mounting portion 24 do not come into contact with each other, the mounting jigs 10 and 50 can hold their positions by their own weight.

  Further, for example, a plurality of blades or teeth extending inward in the width direction are provided in the locking portions 34 and 56 of the mounting jigs 10 and 50, and the teeth are bited into the outer side surface 24 c and the inner side surface 24 of the jig mounting unit 24. By doing so, the mounting jigs 10 and 50 can hold their positions even if the locking parts 34 and 56 do not contact the lower surface 24a of the jig mounting part 24.

  In addition, the shape of the tank main body 12 is not limited. For example, as long as the jig attachment portion 24 for providing the attachment jig 10 is formed on either side of the tank body 12 in the width direction, any shape can be adopted, and a commercially available product can also be used. it can. Similarly, the groove member 14 can adopt any shape as long as the side plate 30 extends in the upward direction, and a commercially available product can also be used.

  Further, in each of the embodiments described above, the specific numerical values such as the length are merely examples, and can be appropriately changed as necessary.

It is sectional drawing which shows a mode that the groove member was attached to the tank main body by the attachment jig of one Example of this invention. It is a perspective view which shows the tank main body of FIG. It is a top view from the upper direction which shows the tank main body of FIG. It is a top view from the width direction which shows the tank main body of FIG. It is a perspective view which shows the groove member of FIG. It is a top view from the longitudinal direction which shows the groove member of FIG. It is a perspective view which shows the attachment jig of FIG. It is a top view from the longitudinal direction which shows the attachment jig of FIG. It is an illustration figure which shows a mode that a groove member is attached to a tank main body by the attachment jig | tool of FIG. It is an illustration figure which shows a mode that a groove member is attached to a tank main body by the attachment jig | tool of FIG. It is an illustration figure which shows a mode that a groove member is attached to a tank main body by the attachment jig | tool of FIG. It is an illustration figure which shows a rainwater storage penetration tank typically. It is sectional drawing which shows embodiment of a rainwater storage penetration tank. It is a perspective view which shows the attachment jig of the other Example of this invention. It is a top view from the longitudinal direction which shows the attachment jig | tool of FIG. It is sectional drawing which shows a mode that the groove member was attached to the tank main body by the attachment jig | tool of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,50 ... Mounting jig 12 ... Tank main body 24 ... Jig mounting part 14 ... Groove member 34, 56 ... Locking part 40, 62 ... Holding part 100 ... Rainwater storage penetration tank

Claims (6)

In the rainwater storage and infiltration tank, which is installed underground and collects rainwater and flows out to the outside or slowly penetrates into the ground, the bottom plate and both side edges of the tank body are formed with a jig mounting part on at least one side in the width direction. An attachment jig for attaching a groove member having a side plate rising from
An attachment jig comprising: an engagement portion that engages with the jig attachment portion; and a holding portion that is formed integrally with the engagement portion and holds the side plate.   The mounting jig according to claim 1, wherein the holding portion sandwiches the side plate between the holding portion and the jig mounting portion.   The mounting jig according to claim 2, wherein the locking portion is in contact with a lower surface of the jig mounting portion. The locking portion further contacts the outer surface of the jig mounting portion,
The mounting jig according to claim 3, wherein the holding portion is in contact with an inner surface of the side plate. A rainwater storage and infiltration tank that is installed underground and collects rainwater and allows it to flow outside or gently penetrate into the ground.
A tank body in which a jig mounting portion having a lower surface is formed on at least one side in the width direction,
A groove member that is disposed in the internal space of the tank body and has a bottom plate and side plates that rise from both side ends thereof, a locking portion that contacts the lower surface of the jig mounting portion, and is formed integrally with the locking portion. A rainwater storage and penetration tank comprising an attachment jig having a holding portion for holding the side plate. It is a construction method of rainwater storage and penetration tank that is installed underground and collects rainwater and flows out to the outside or slowly penetrates into the ground,
(A) forming a cut groove along the installation section of the rainwater storage and penetration tank, and arranging at least two tank bodies in the cut groove,
(B) A groove member is arranged in the internal space of the tank body so as to straddle the tank bodies arranged in the step (a), and (c) the groove member arranged in the step (b) is attached to a mounting jig. A method of constructing a rainwater storage and penetration tank, which is attached to the tank body by

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