JP4391951B2 - Waterproof structure - Google Patents

Description

  The present invention relates to a waterproof structure using a waterproof pan constructed on a balcony or the like.

  Conventionally, floors such as balconies are waterproofed by laying a waterproof pan made of synthetic resin. The waterproof pan made of synthetic resin, for example, is a waterproof pan having a square planar shape with side plates on all four sides, a drainage groove is provided along the front edge, and a groove bottom at one end of the drainage groove There is known one in which a drain outlet is formed (see Patent Document 1, FIG. 11). Such a waterproof pan is laid on the floor of a balcony or the like so that a drain is connected to the drain outlet, and rainwater in the waterproof pan flows through the inclined bottom surface of the drain groove and is drained from the drain outlet to the fence. It has become.

  However, the above-described waterproof pan has a larger left-right dimension and a longer drainage groove, so that the inclination angle (flow gradient) of the bottom surface of the drainage groove becomes smaller, so that the flow of rainwater and the like deteriorates and drainage performance decreases. There was an inconvenience.

  Therefore, the present applicant has already provided a waterproof pan in which the bottom surface of the drainage groove is inclined more greatly than before so as to become lower from the center of the drainage groove toward both ends, and drainage ports are respectively formed on the bottom surfaces of both ends of the drainage groove. Proposed (Japanese Patent Application No. 2003-175697). This waterproof pan is constructed by connecting a vertical drainage pipe to one drainage outlet and connecting a horizontal drainage pipe leading to this vertical drainage pipe to the other drainage outlet. It drains efficiently through the horizontal drainage pipe and the vertical drainage pipe from the drainage outlets at both ends by flowing to the left and right at the bottom with large corners. This waterproof pan has not yet been released.

  By the way, the one with the horizontal drain pipe connected to the other connection port like this waterproof pan inevitably has the horizontal drain pipe piped under the drainage groove. In some cases, it is difficult to secure a space for piping the drainage pipe below the drainage groove. In such a case, it is troublesome to newly provide a piping space on the floor of the balcony. Moreover, if the horizontal drainage pipe is installed under the drainage groove of the waterproof pan, it cannot be said that there is no risk of rainwater leaking out from the connecting part of the horizontal drainage pipe. If it is incomplete, rainwater or the like may leak from the four rounds of the waterproof pan, so it is necessary to further improve the waterproof property.

Furthermore, when the waterproof pan is of a split type, it is necessary to reliably prevent water leakage from the joint portion of the split waterproof pan. A joint structure in which the holding edge of the other waterproof pan is overlapped with the support edge of one waterproof pan to be joined via the first waterproof packing and the second waterproof packing, and both ends are fastened with screws. Has already been proposed (Patent Document 2). Although this joint structure exhibits excellent leak-proof properties, there is a risk of water leakage with the aging deterioration of the first and second packings, so even if these packings deteriorate. There was also a need to develop a joint structure that can maintain excellent leakage resistance and adopt it in a split type waterproof pan.
JP 2000-87444 A JP-A-8-209906

  The present invention has been made in view of the above circumstances, and uses a waterproof pan that has good drainage, has excellent waterproof performance, is easy to construct, does not require a new piping space, and can be easily maintained. The problem to be solved is to provide a waterproof structure.

  In order to solve the above-described problems, the waterproof structure of the present invention has a preliminary drainage basin disposed along the four peripheral edges of a waterproof pan having a square planar shape, and is disposed along the front edge of the waterproof pan. A horizontal drainage pipe leading to the vertical drainage pipe is installed in the space between the front side plate of the drainage drainage and the front side plate of the waterproof pan, and the drainage port protruding laterally from this horizontal drainage pipe is placed in front of the waterproof pan. It is characterized in that the side plate is penetrated and the drainage groove inside the waterproof pan is desired.

  In the waterproof structure of the present invention, the front edge of the waterproof pan is partly cut off, and the inspection panel is attached to the cutout part in a watertight manner so as to be detachable, and a drainage port protruding laterally from the lateral drainage pipe is provided. It is preferable to pass through the inspection panel and make it desired in the drainage groove inside the waterproof pan. In addition, a cheese joint having connection ports on three sides is provided in the middle of the horizontal drainage pipe, and the excess connection port of this cheese joint is used as a drainage port protruding sideways from the horizontal drainage pipe and is expected in the drainage groove inside the waterproof pan. It is preferable not to. And it is preferable to attach a dust-removing cover to the drain outlet desired in the drain groove inside the waterproof pan. Furthermore, when the waterproof pan is formed by joining a plurality of divided pans, the joint portion between the divided pans is formed by overlapping the support edge of one divided pan with the press edge of the other divided pan via the waterproof packing. It is preferable to fix with a stopper and to form a water draining groove on the support edge and to form a water draining hole on the groove bottom of the end.

  Like the waterproof structure of the present invention, if a drainage drainage is arranged on the lower side along the four peripheral edges of the waterproof pan, water may leak from the connection portion of the horizontal drainage pipe or from the four rounds of the waterproof pan. However, since it can be received by the drainage drain, it can exhibit excellent waterproofness. Then, a horizontal drain pipe is installed in the space between the front side plate of the drainage drainage basin and the front side plate of the waterproof pan disposed along the front edge of the waterproof pan, and a drain port protruding sideways from the horizontal drain pipe is provided. If the front side plate of the waterproof pan is penetrated and the drainage groove inside the waterproof pan is desired, it is not necessary to secure a piping space for the horizontal drainage pipe under the drainage groove of the waterproof pan, thereby improving the workability. At the same time, rainwater or the like is efficiently drained through the lateral drainage pipe from the drainage port that penetrates the front side plate of the waterproof pan and is desired in the inner drainage groove.

  In addition, the front panel of the waterproof pan is partly cut off, and the inspection panel is mounted in a watertight manner so that it can be removed in a watertight manner. The desired waterproof structure can be easily maintained because the inspection panel can be removed to inspect and repair the back of the waterproof pan and the horizontal drainage pipe.

  And the waterproof structure which uses a cheese joint which has a connection port in three directions in the middle of a horizontal drain pipe, and uses the connection port which this cheese joint left as a drain port which projected sideways from a horizontal drain pipe is a drain port. The position of the connection port can be appropriately changed by changing the position where the cheese joint is provided.

  In addition, a waterproof structure with a dust cover attached to the drain outlet desired in the drain groove inside the waterproof pan can prevent the entry of dust from the drain port to the horizontal drain pipe by the dust cover. And the clogging of the vertical drain pipe can be eliminated.

  Further, the waterproof pan is formed by joining a plurality of divided pans, and the joint portion between the divided pans overlaps the supporting edge of one divided pan with the presser edge of the other divided pan via the waterproof packing. The waterproof structure, which is fixed with a stopper and has a drainage groove on the support edge and a drainage hole on the groove bottom of the end, has deteriorated over time. Even if rainwater or the like enters from the gap between the support edge and the presser edge, the rainwater that has entered will flow into the drainage groove and be received by the drainage drainage at the end, so there is a risk of leakage. There is no.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  1 is an exploded perspective view of a waterproof structure according to an embodiment of the present invention, FIG. 2 is a plan view of the waterproof structure, FIG. 3 is an enlarged cross-sectional view taken along line AB of FIG. 2, and FIG. 2 is an enlarged partial sectional view taken along line A-C in FIG. 2, FIG. 5 is an enlarged partial sectional view taken along line DD in FIG. 2, and FIG. 6 is an enlarged partial sectional view taken along line EE in FIG. 7 is a partial perspective view showing a state before the inspection panel is attached to the notch portion of the front edge of the waterproof pan. FIG. 8 is a state after the inspection panel is attached to the notch portion of the front edge of the waterproof pan. FIG. 9 is a partial perspective view showing a dust-removal cover attached to a drain outlet, FIG. 10 is a cross-sectional view showing a connecting portion between a horizontal drain pipe and a vertical drain pipe in the waterproof structure, and FIG. To FIG. 13 is a perspective view for explaining the construction procedure of the waterproof structure.

  As shown in an exploded view in FIG. 1, the waterproof structure includes a two-part waterproof pan 1 having a rectangular planar shape composed of left and right split pans 11 and 12 joined to each other, and the waterproof pan 1. Drainage drains 2a, 2b, 2c, 2d disposed on the lower side along the four peripheral edges, a corner member 2e for connecting these drainage drains in a rectangular frame shape, and water in the waterproof pan 1 are drained. It is comprised by the horizontal drain pipe 3 and the vertical drain pipe 4, and other various components.

  The waterproof pan 1 is formed by watertightly joining left and right divided pans 11 and 12 formed of a material such as SMC (sheet molding compound) in which glass fiber is mixed with polyester resin, as shown in FIG. A front plate 1a, a left plate 1b, and a rear plate 1c are formed at the front end, left end, and rear end of the left divided pan 11, and the front plate, right end, and rear end of the right divided pan 12 are also formed on the front plate. 1a, right side plate 1d, and rear side plate 1c are formed. A support edge 1e is formed at the right end of the left divided pan 11, and a presser edge 1f is formed at the left end of the right divided pan 12 so as to overlap the support edge 1e.

  The left and right divided pans 11 and 12 are joined in a watertight manner with a joining structure as shown in FIG. That is, the first waterproof packing 1g and the second waterproof packing 1h are sandwiched between the support edge 1e of the left split pan 11 and the press edge 1f of the right split pan 12 superimposed thereon. The bolt 1i is screwed into the embedded nut 1j of the support edge 1e from above the presser edge 1f. And the drain groove 1k is formed in the front-end | tip part of the support edge 1e over the full length of the support edge 1e, and the groove | channel of the edge part (end part of the front end side of the division | segmentation pan 11) of this drain groove 1k A drain hole 1m is formed in the bottom.

  When the left and right divided pans 11 and 12 are joined with such a joining structure, water leakage from the gap between the support edge 1e and the presser edge 1f is prevented by the first and second waterproof packings 1g and 1h. Since it is severely blocked, excellent leakage resistance is exhibited. Even if the waterproof packing 1g, 1h deteriorates with time and water enters from the gap between the support edge 1e and the presser edge 1f, the water that has entered enters the drainage groove 1k at the end. Since it falls into the drainage drain 1a from the drain hole 1m and is received, there is no fear of water leakage, and excellent leakage prevention is maintained.

  As shown in FIG. 1, each of the left and right divided pans 11 and 12 has a drain groove 1n formed along the front side plate 1a, and the center of the drain groove 1n is deepest at the groove bottom. Thus, a flow gradient is given from both ends toward the center. Further, as shown in FIG. 3, a plurality of leg pieces 1p having slightly different heights, which also serve as reinforcing ribs, are formed on the back surfaces of the divided pans 11 and 12 at intervals. When the waterproof pan 1 joined with 11 and 12 is laid on the floor surface 7a of the balcony, the surface of the waterproof pan 1 (divided pans 11 and 12) is inclined slightly downward. Accordingly, the water on the surface of the waterproof pan 1 (divided pans 11 and 12) flows toward the front end of the waterproof pan 1, flows down into the drain grooves 1n and 1n, and is collected at the central portion of the drain grooves 1n and 1n. Yes.

  As shown in FIGS. 1 and 7, the center part of the front edge of each of the divided pans 11 and 12, that is, the center part of the front side plate 1a and the drainage groove 1n is cut out, and the shape corresponding to this cutout part 1q is used for inspection. A panel 1r (inspection panel having a shape including a front side plate portion and a drainage groove portion) is attached in a watertight manner so as to be detachable. Specifically, as shown in FIG. 4, a waterproof packing 1g is sandwiched between the overlapping end 1s of the inspection panel 1r and the notched ends 1t of the divided pans 11 and 12 (waterproof pan 1), The inspection panel 1r is attached to the cutout portions 1q of the divided pans 11 and 12 in a watertight and detachable manner by screwing the bolts 1i into the embedded nuts 1j of the cutout end portions 1t from above the overlapping end portions 1s. .

  The front side plate 1a, the left side plate 1b, the rear side plate 1c, and the right side plate 1d of the waterproof pan 1 (divided pans 11 and 12) are all formed as bent plates having horizontal step portions at the upper and lower intermediate portions. In the front side plate 1a of the (divided pans 11 and 12), the width of the horizontal step portion is wider than that of the other side plates 1b, 1c and 1d. And as shown in FIG. 5, between the lower side part from the horizontal step part of the front side board 1a, and the front side board 2f of the drain preliminary | backup drain 2a arrange | positioned along the front edge of the waterproof pan 1 A horizontal drain pipe 3 is piped in the space 5.

  Preliminary drainage basins 2 a, 2 b, 2 c, 2 d are made of an extruded aluminum material or a synthetic resin extrusion, and are disposed on the lower side along the front edge of the waterproof pan 1. 4 and 5, the front side plate 1 a of the waterproof pan 1, the drainage groove 1 n, the inspection panel 1 r, the horizontal drainage pipe 3, the cheese joint 3 a described later, and the like are received from below. ing. On the other hand, the drainage spare rods 2c shown in FIG. 3 disposed on the lower side along the rear edge of the waterproof pan 1, and the drainage preliminary rods 2b and 2d disposed on the lower side along the right and left edges are The width is narrower than the drainage drain 2a, and the rear side plate 1c and the left and right side plates 1b and 1d of the waterproof pan 1 are received.

  As shown in FIG. 3 to FIG. 5, the above-described drainage pre-drain 2 a is attached with moistureproof paper 6 a with its front side plate 2 f abutting against the wall of the balcony, and butyl tape on the lower end of the moistureproof paper 6 a. 6b is laminated and pasted so that it is waterproofed so as not to leak from the gap with the balcony wall surface. Similarly, the drain preparatory drains 2b, 2c, 2d are waterproofed. The upper ends of the four side plates 1a, 1b, 1c, and 1d of the waterproof pan 1 are waterproofed with the bead material 6c (EPDM), and the waterproof property of the four sides of the waterproof pan 1 is ensured. When the bead material 6c is waterproofed as described above, it is possible to sufficiently prevent the intrusion of rainwater and the like by wind. Since it is received by 2a, 2b, 2c, 2d and drained to the vertical drain pipe 4 as will be described later, there is no concern of water leakage.

  As shown in FIG. 1, a cheese joint 3a and an expansion joint 3b having connection ports on three sides are connected to the horizontal drain pipe 3. As shown in FIG. A pipe is provided in the space 5 between the front side plate 2 f of the heel 2 a and the front side plate 1 a of the waterproof pan 1. As shown in FIGS. 4 and 8, the remaining side connection ports 3c of the cheese joint 3a pass through the opening 1u of the inspection panel 1r as a drain port protruding sideways from the horizontal drain pipe. And the unnecessary upstream connection port of the cheese joint 3a connected to the starting end of the horizontal drainage pipe 3 protrudes into the drainage groove 1n inside the waterproof pan 1 (left and right split pans 11 and 12). It is blocked with a plug. These cheese joints 3a are formed with a pair of leg pieces 3d as shown in FIG. 4, but the leg pieces 3d may be omitted. In addition, as a joint at the start end of the horizontal drainage pipe 3, a right angle elbow joint, a joint in which an unnecessary upstream connection port of the cheese joint 3a is omitted, or the like may be used.

  In addition, the expansion joint 3b has connection ports formed at both ends of the bellows pipe. When the horizontal drainage pipe 3 is connected through such an expansion joint 3b, thermal expansion and contraction due to a temperature difference is absorbed. There is no fear of leakage due to disconnection of the connecting portion, and there is an advantage that the slope of the horizontal drainage pipe 3 can be adjusted freely by the expansion joint 3b.

  As shown in FIG. 8, a male screw is formed on the outer peripheral surface of the connection port 3c (drain port) of the cheese joint 3a protruding from the opening 1u of the inspection panel 1r into the drain groove 1n of the waterproof panel 1. 4, as shown in FIG. 8, a drain plug 3e is screwed into the connection port 3c in which the male screw is formed, and the cheese joint 3a is fixed. A dust-removing cover 3f is fitted to the outside of the connection port 3c (drainage port) to which the drain plug 3e is screwed. When the dust-removing cover 3f is fitted in this way, the entry of large dust from the connection port 3 (drainage port) into the horizontal drainage pipe 3 is prevented, and water that does not contain large dust is deepest in the drainage groove 1n. Since it flows into the connection port 3c from the center and is drained through the horizontal drain pipe 3 and the vertical drain pipe 4, clogging of dust can be eliminated.

  The horizontal drain pipe 3 and the vertical drain pipe 4 are connected by a connection structure as shown in FIG. That is, the elbow joint 3g is connected to the end of the horizontal drainage pipe 3, and the lower insertion port 3h of the elbow joint 3g is inserted into the opening of the end of the drainage pretension 2a from the lower diameter joint 3i. The small diameter upper receiving port 3j is inserted and connected from above to be bonded. A flange-shaped step 3m between the small-diameter upper receiving port 3j and the large-diameter lower insertion port 3k of the different-diameter joint 3i is bonded to the back surface of the drainage preliminary rod 2a, and the large-diameter lower portion of the different-diameter joint 3i. The insertion port 3k is inserted and connected to the large-diameter vertical drain pipe 4, and further, a split groove portion 3n is formed in the small-diameter upper receiving port 3j of the different-diameter joint 3i. Accordingly, the water flowing through the horizontal drainage pipe 3 flows down to the vertical drainage pipe 4 through the elbow joint 3g and the different-diameter joint 3i and is drained. As shown, the vertical drainage pipe 4 flows down from the split groove portion 3n of the small diameter upper receiving port 3j of the different diameter joint 3i through the large diameter lower insertion port 3k and is drained.

  The waterproof structure having the above structure is constructed on the balcony in the following manner. First, as shown in FIG. 11, drain drainage basins 2a, 2b, 2c, and 2d are connected to a floor surface 7a of a balcony in a rectangular frame shape by corner members 2e. Then, as described above, moisture-proof paper and butyl tape are applied to perform waterproofing.

  Next, as shown in FIG. 12, the horizontal drainage pipe 3, the cheese joint 3a, and the expansion joint 3b are connected and piped inside the drainage drainage pipe 2a, and as described above, through the elbow joint 3g and the different diameter joint. The horizontal drain pipe 3 and the vertical drain pipe 4 are connected. And in order to adjust the unevenness | corrugation of the balcony floor surface 7a, the rubber tape 7b is affixed on the balcony floor surface 7a.

  Next, as shown in FIG. 13, the waterproof pan 1 in which the left and right divided pans 11 and 12 are joined with the structure described above is laid on the floor surface 7 a of the balcony, and drained downward along the four peripheral edges of the waterproof pan 1. The horizontal drainage pipe 3, the cheese joint 3a, etc. are stored in the space between the front side plate 1a of the waterproof pan 1 and the front side plate 2f of the drainage preliminary cage 2a so that the spare troughs 2a, 2b, 2c, 2d are located. Like that. As described above, the inspection panel 1r is attached to the notch 1q of the waterproof pan 1 in a watertight manner so as to be detachable, and the remaining connection port 3c of the cheese joint 3a is used as a drainage port from the opening of the inspection panel 1r. Projecting into the drain groove 1n inside the waterproof pan 1, attaching a drain plug and a dust cover, and waterproofing with the bead material as described above to complete the construction as described above.

  As described above, the waterproof structure of the present invention is easy to construct, and it is not necessary to secure a piping space for the horizontal drainage pipe 3 below the drainage groove 1n of the waterproof pan 1. Even if water leaks or water leaks from the connecting portion of the horizontal drainage pipe 3, it is received by the drainage drains 2a, 2b, 2c, 2d arranged on the lower side along the four peripheral edges of the waterproof pan 1. Therefore, it can exhibit excellent waterproofness. Then, the rainwater collected in the drain groove 1n of the waterproof pan 1 flows into the connection port 3c that becomes the drainage port of the cheese joint 3a after the dust is removed by the dust removal cover 3f, and the horizontal drainage pipe 3 and the vertical drainage pipe 4 Since it is drained quickly through, there is no clogging of dust and drainage is good. Moreover, since the water received by the drainage drains 2a, 2b, 2c, 2d is drained to the vertical drainage pipe 4 through the split groove 3n of the different diameter joint 3i, there is no fear of overflowing from the drainage drainage. Moreover, since the waterproof structure of the present invention can be inspected and repaired by removing the inspection panel 1r and inspecting and repairing the back side of the waterproof pan 1 and the horizontal drainage pipe 3, it is easy to maintain and the split type waterproof pan 1 is divided. Even if the waterproof packing at the joint portion of the pans 11 and 12 is deteriorated, there are many remarkable effects such as no fear of water leakage from the joint portion.

  As described above, the waterproof structure of the present invention has been described by exemplifying an embodiment. However, the present invention is not limited to this. For example, instead of the two-part waterproof pan 1, the three-part type or more is provided. Various modifications such as laying a waterproof pan or a non-split type waterproof pan can be allowed.

It is a disassembled perspective view of the waterproof structure which concerns on one Embodiment of this invention. It is a top view of the waterproof structure. It is an expanded sectional view along the AB line of FIG. FIG. 3 is an enlarged partial sectional view taken along line A-C in FIG. 2. FIG. 3 is an enlarged partial sectional view taken along the line DD in FIG. 2. FIG. 3 is an enlarged partial sectional view taken along line EE in FIG. 2. It is a fragmentary perspective view which shows the state before attaching the panel for an inspection to the notch part of the front edge of a waterproof pan. It is a fragmentary perspective view which shows the state after attaching the panel for an inspection to the notch part of the front edge of a waterproof pan. It is a fragmentary perspective view which shows the place which attached the dust prevention cover to the drain outlet. It is sectional drawing which shows the connection part of the horizontal drain pipe and the vertical drain pipe in the waterproof structure. It is a perspective view explaining the construction procedure of the said waterproof structure, Comprising: The place which connected and drained the preliminary | backup drainage basin with the square frame shape by the corner member is shown. It is a perspective view explaining the construction procedure of the said waterproof structure, Comprising: The place which piped the horizontal drain pipe is shown. It is a perspective view explaining the construction procedure of the waterproof structure, and shows a place where a split type waterproof pan is laid.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproof pan 11,12 Divided pan 1a Front side plate of waterproof pan 1e Support edge of one divided pan 1f Pressing edge of other divided pan 1g First waterproof packing 1h Second waterproof packing 1i Bolt (fastener)
1k Drainage groove 1m Drainage hole 1n Drainage groove 1q Notch 1r Inspection panel 1u Inspection panel opening 2a, 2b, 2c, 2d Drainage drain 2e Corner member 2f Drainage drainage front plate 3 Horizontal drainage pipe 3a Cheese joint 3b Expansion joint 3c Extra connection port of cheese joint 4 Vertical drain pipe 5 Space between the front plate of the drainage drainage and the front plate of the waterproof pan 7a Balcony floor

Claims (5)

  A drainage basin is disposed on the lower side along the four peripheral edges of a waterproof pan having a square planar shape, and between the front plate of the drainage basin disposed along the front edge of the waterproof pan and the front plate of the waterproof pan. A horizontal drain pipe that leads to the vertical drain pipe was piped in the space of the water drain, and the drain port protruding sideways from the horizontal drain pipe was penetrated through the front side plate of the waterproof pan so that the drain groove inside the waterproof pan desired A waterproof structure characterized by that.   A part of the front edge of the waterproof pan is cut off, and an inspection panel is attached to the notch so that it can be removed in a watertight manner. The waterproof structure according to claim 1, wherein the waterproof structure is desired for a drain groove inside the bread.   A cheese joint with a connection port on three sides was provided in the middle of the horizontal drainage pipe, and the excess connection port of this cheese joint was desired as a drainage port protruding sideways from the horizontal drainage pipe to the drainage groove inside the waterproof pan. The waterproof structure according to claim 1 or 2, characterized by the above.   The waterproof structure according to any one of claims 1 to 3, wherein a dust-removing cover is attached to a drain outlet desired in the drain groove inside the waterproof pan.   The waterproof pan is formed by joining a plurality of divided pans, and the joint portion between the divided pans is a stopper that overlaps the supporting edge of one divided pan with the presser edge of the other divided pan via the waterproof packing. 5. A water draining groove is formed at the support edge, and a water draining hole is formed at the groove bottom at the end. The waterproof structure described in 1.

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