JP2016186405A - Drain guide tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To properly inhibit leakage of drain water without increasing the number of components in a drain guide tool including a drain channel between a water channel formation member and a lid member.SOLUTION: A drain guide tool (1) includes: a water channel formation member (2) in which a drain channel (22) is formed; and a lid member (3) covering the drain channel (22). An engaged part (25) of the water channel formation member (2) has a recessed part (25A) and a pair of rib shaped plug bodies (25B) including tip parts facing each other at an upper opening of the recessed part (25). An engaging part (32) of the lid member (3) has a projection part (32A) which is formed wider than a distance (D) between the tip parts of the pair of rib shaped plug bodies (25B).SELECTED DRAWING: Figure 6

Description

  The present invention relates to a drainage guide for guiding drain water drainage.

  For example, in buildings such as apartment buildings, drainage guides are installed on floors such as common corridors and verandas, and drainage water discharged from water heaters and air conditioners is drained from buildings using these drainage guides. Draining to the structural part is performed. As a drainage guide used for such a purpose, for example, as disclosed in JP 2010-286154 A (Patent Document 1), a water channel forming member in which a drain channel [groove 6A] extending in the longitudinal direction is formed. What is provided with the [groove formation base material 6] and the lid member [lid member 7] which covers a drainage channel is known.

  In the drainage guide of Patent Document 1, an elastic seal is provided between the opposing surfaces of the water channel forming member and the lid member in order to prevent drain water from leaking to the outside through between the mounting surfaces of the water channel forming member and the lid member. The material is provided in a compressed state. However, from the viewpoint of cost reduction or the like, it is preferable that the number of parts is reduced, and it is preferable that leakage of drain water to the outside can be appropriately suppressed without installing a sealing material.

JP 2010-286154 A

  In a drainage guide having a drainage channel between a water channel forming member and a lid member, it is required to appropriately suppress leakage of drain water without increasing the number of parts.

The drainage guide according to the present invention is
A water channel forming member in which a drain channel for draining drain water is formed;
A lid member that is detachably attached to the water channel forming member and covers the drainage channel in a mounted state,
The water channel forming member includes a pair of engaged portions provided on both sides in the width direction with respect to the drainage channel,
The lid member includes a pair of engaging portions that engage with the pair of engaged portions,
The pair of engaged parts includes a concave ridge extending along the drainage channel and a pair of rib-shaped plug bodies facing each other in a state where the tip ends face each other at the upper opening in the concave ridge. Have
Each of the pair of engaging portions has a protruding portion that extends along the concave portion and is formed wider than the interval between the tip portions of the pair of rib-shaped plugs.

  According to this configuration, a pair of rib-shaped plug bodies are provided in a state where the tip portions face each other in the upper opening of the concave portion of the water channel forming member, and in the gap where the pair of rib-shaped plug bodies face each other, The protrusion of the lid member is fitted. At this time, since the ridge portion is formed wider than the interval between the tip portions of the rib-shaped plug body, the pair of rib-shaped plug bodies are located on the back side of the concave portion with the entry of the ridge portion. Elastically deforms so as to tilt. And after completion | finish of mounting | wearing of the cover member with respect to a water channel formation member, a pair of rib-shaped plug body closely_contact | adheres with the elastic restoring force from the both sides of the width direction (thickness direction) with respect to the protrusion part of a cover member. Therefore, since sealing is realized at two locations, the close contact portion between one rib-like plug body and the ridge portion and the close contact portion between the other rib-like plug body and the ridge portion, the drain water can be appropriately leaked. Can be deterred. In addition, since the seal is realized by utilizing the fitting structure of the engaging portion of the lid member and the engaged portion of the water channel forming member, installation of a sealing material is unnecessary and the number of parts does not increase. .

  Hereinafter, preferred embodiments of the present invention will be described. However, the scope of the present invention is not limited by the preferred embodiments described below.

  As one aspect, it is preferable that the engaging portion further includes a huge portion that is wider than the protruding portion and narrower than the recessed portion at the distal end side of the protruding portion.

  According to this configuration, since the enormous portion is formed narrower than the concave portion, it is possible to appropriately insert the engaging portion having the enormous portion on the distal end side of the protruding portion into the concave portion. it can. Further, since the enormous portion is formed wider than the ridge portion, it is possible to prevent the pair of rib-shaped plugs from coming off in a state where the pair of rib-like plugs are in close contact with the ridge portion from both sides in the width direction by elastic restoring force. it can.

  As one aspect, it is preferable that the enormous portion is formed so as to bulge toward only one side in the width direction with respect to the protruding portion.

  According to this structure, compared with the structure formed so that the enormous part bulges toward the both sides in the width direction with respect to the protruding part, the resistance when the engaging part is inserted into the recessed part is reduced. Can be suppressed. Therefore, the mounting operation of the lid member with respect to the water channel forming member can be easily performed.

  As one aspect, the engaging portion has an inclined surface that is inclined with respect to the mounting direction of the water channel forming member and the lid member on the distal end side of the ridge portion, and the distal end at the formation portion of the inclined surface. It is preferable that the width is narrowed toward the side.

  According to this configuration, the pair of rib-shaped plug bodies can be inserted while being smoothly elastically deformed by the inclined surface formed on the distal end side of the ridge portion. Resistance can be kept small. Therefore, the mounting operation of the lid member with respect to the water channel forming member can be easily performed.

  As one aspect, it is preferable that the thickness of the protruding portion is 1.5 times or more and 2 times or less the distance between the tip portions of the pair of rib-shaped plugs.

  According to the study by the inventors, when the thickness of the protruding portion is 1.25 times or less the distance between the tip portions of the pair of rib-like plug bodies, basically, the drain water is appropriately leaked. Although it can be suppressed, drain water may leak slightly under severe conditions. On the other hand, it was confirmed that leakage of drain water can be reliably and appropriately suppressed by setting the thickness of the protrusions to 1.5 times or more the distance between the tip portions of the pair of rib-shaped plugs. On the other hand, if the thickness of the protrusion is wider than twice the distance between the tip portions of the pair of rib-shaped plugs, the smoothness of the attaching / detaching operation between the water channel forming member and the lid member may be impaired. . In view of these points, according to the above-described configuration, it is possible to reliably and appropriately suppress the leakage of drain water while enabling a smooth attachment / detachment operation between the water channel forming member and the lid member.

  Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

The perspective view which shows the building in which the drainage guidance system which concerns on embodiment was integrated Schematic diagram of water heater Perspective view of drainage guide Cross section of drainage guide Vertical section of drainage guide system Explanatory drawing of the seal structure between a water channel formation member and a lid member Front view showing another aspect of the drainage guide Front view showing another aspect of the drainage guide Front view showing another aspect of the drainage guide

  An embodiment of a drainage guide will be described with reference to the drawings. The drainage guide 1 according to the present embodiment covers the drainage channel 22 in a mounted state while being detachable from the channel formation member 2 in which a drainage channel 22 for draining drain water is formed, and the water channel formation member 2. And a lid member 3. This drainage guide 1 is characterized by the following points. That is, the water channel forming member 2 includes a pair of engaged portions 25 provided on both sides in the width direction W with respect to the drainage channel 22, and the lid member 3 is a pair engaged with the pair of engaged portions 25. The engaging portion 32 is included. The pair of engaged portions 25 includes a concave strip portion 25A extending along the drainage channel 22, and a pair of rib-shaped plug bodies 25B facing each other with the tip portions facing each other at the upper opening in the concave strip portion 25A. Respectively. And a pair of engaging part 32 has 32 A of protrusion parts extended along the concave-line part 25A and formed wider than the space | interval D between the front-end | tip parts of a pair of rib-shaped plug body 25B. Thereby, the leakage of drain water can be suppressed appropriately without increasing the number of parts. Hereinafter, the drainage guide 1 according to the present embodiment will be described in detail.

  In the following description, the “extending direction” for each member represents the direction extending along the drainage drainage path. In this case, the extending direction of the drainage guide 1 is particularly referred to herein as the “longitudinal direction L”. The “width direction W” represents a direction along the bottom surface of the water channel forming member 2 among the directions orthogonal to the longitudinal direction L. In addition, terms relating to position, direction, dimensions, and the like used in the following description are concepts including a state having a difference due to an error (an error that is acceptable in manufacturing).

  As shown in FIG. 1, the drainage guide 1 of the present embodiment is incorporated in a drainage guide system 100 and installed in an apartment house as an example of a building. The drainage guidance system 100 is provided from the pipe shaft 92 provided facing the common corridor 91 of the building 9 to the drainage structure portion 95 via the floor surface 93 of the common corridor 91. The connection guide 5 is provided across the drain pipe 77 extending from the hot water supply device 7 installed in the pipe shaft 92 and the floor surface 93, and the connection guide 5 and the drainage structure 95 are provided on the floor 93. A drainage guide 1 is provided. In the present embodiment, the drainage structure 95 is a drainage groove 95A that is recessed at the end of the shared corridor 91 opposite to the pipe shaft 92, and the drainage guide 1 includes the connection guide 5 and the drainage groove 95A. Are provided.

  As shown in FIG. 2, the hot water supply device 7 includes a first heat exchanger 71, a second heat exchanger 72, and a burner 74. The first heat exchanger 71 and the second heat exchanger 72 are provided in the hot water flow passage 73 in a state where the first heat exchanger 71 is located on the downstream side with respect to the second heat exchanger 72. The hot water flow passage 73 may be formed in either a loop shape or a non-loop shape. The first heat exchanger 71 heats hot water in the hot water flow passage 73 using exhaust sensible heat of combustion gas generated by combustion of fuel gas supplied to the burner 74. The second heat exchanger 72 uses the exhaust gas latent heat of the combustion gas whose temperature has decreased due to heat exchange with the first heat exchanger 71, so that the second heat exchanger 72 is located upstream of the first heat exchanger 71 in the hot water flow passage 73. Preheat hot water. As described above, the hot water supply device 7 of the present embodiment is configured as a latent heat recovery type hot water supply device that generates warm water by using exhaust latent heat in addition to exhaust sensible heat by combustion gas.

  The hot water supply device 7 further includes a drain receiver 75 and a drain tank 76. The drain receiver 75 is disposed below the first heat exchanger 71 and the second heat exchanger 72 and receives drain water generated by condensation on the surface of the second heat exchanger 72 for recovering latent heat. A drain tank 76 is connected to the drain receiver 75, and the drain water received by the drain receiver 75 is stored in the drain tank 76. Since the drain water flowing into the drain tank 76 is acidic, it is preferable to perform neutralization or dilution. Thereafter, the drain water is discharged through a drain pipe 77 extending from the drain tank 76 of the hot water supply device 7 at an appropriate timing. The drain tube 77 is made of a flexible material (for example, a polyvinyl chloride resin, a polyethylene resin, a resin in which a polyethylene resin and an ethylene-vinyl acetate copolymer resin are mixed, a thermoplastic elastomer, or the like). .

  As shown in FIGS. 3 and 4, the drainage guide 1 includes a water channel forming member 2 and a lid member 3 that can be attached to and detached from the water channel forming member 2. The water channel forming member 2 and the lid member 3 are, for example, thermoplastic resins such as polyvinyl chloride resin, polyethylene resin, polyester resin, and ethylene-vinyl acetate copolymer resin; thermosetting resins such as phenol resin and melamine resin; It can be formed from a thermoplastic elastomer such as butadiene rubber (SBR) or chloroprene rubber (CR). From the viewpoint of ease of handling during transportation and construction, a flexible material (for example, polyvinyl chloride resin, polyethylene resin, resin in which polyethylene resin and ethylene-vinyl acetate copolymer resin are mixed, thermoplasticity, etc. Elastomers etc. are preferred. Among these, as an example, a soft vinyl chloride resin can be preferably used.

  The water channel forming member 2 includes a main body portion 21 in which a drainage channel 22 for draining drain water is formed, and a pair of slope portions 27 provided on both sides of the main body portion 21 in the width direction W. The main body 21 is a main part of the water channel forming member 2 that provides a forming part of the drainage channel 22. A symmetrical drainage channel 22 is formed in the main body 21 (see FIG. 4). The drainage channel 22 of the present embodiment can be separated into the first channel portion 22A and the second channel portion 22B by the central dam portion 23 provided so as to extend along the longitudinal direction L at the center portion in the width direction W. Is formed. In the present embodiment, the pair of the first flow path portion 22A and the second flow path portion 22B form a “pair of parallel flow path portions”.

  The central dam portion 23 is configured as a mountain-shaped raised portion that gradually increases from both ends in the width direction W toward the center in the width direction W. The central weir 23 can physically separate the drainage channel 22 composed of one space into two flow paths (first flow path 22A and second flow path 22B). Yes. When the amount of drain water flowing through the drainage guide 1 is small, the first flow path portion 22A and the second flow path portion 22B function as flow path portions independent of each other. When the amount of drain water exceeds the specified amount, the drain water moves over the central dam portion 23, and the first flow path portion 22A and the second flow path portion 22B function as an integral flow path portion. The drainage channel 22 (the first channel portion 22A and the second channel portion 22B) is installed so as to have a water gradient of, for example, about 1/50 to 1/200 (preferably about 1/100).

  A pair of side bank portions 24 are formed on both sides of the drainage channel 22 in the width direction W of the main body 21. The side bank portion 24 is formed to extend along the longitudinal direction L while having a predetermined width. The lid member 3 is attached to the water channel forming member 2 while being placed on the upper surface of the side bank portion 24. The side bank portion 24 also functions as a “support portion” for placing and supporting the lid member 3. An engaged portion 25 is formed in each of the pair of side bank portions 24. That is, the water channel forming member 2 includes a pair of engaged portions 25 provided on both sides of the drainage channel 22 in the width direction W. In the present embodiment, the engaged portion 25 is formed so as to extend along the longitudinal direction L (that is, the extending direction of the side ridge portion 24) while opening on the upper surface of the side ridge portion 24. The engaged portion 32 of the lid member 3 is engaged with the engaged portion 25.

  The slope portion 27 as a whole is formed so as to become lower as it goes from the main body portion 21 side to the outside in the width direction W. The slope portion 27 is formed at a relatively gentle inclination angle of, for example, about 1 ° to 10 ° so that a sense of unity with the floor surface 93 is easily created. Such an inclination angle has an advantage that it is difficult to sense the inclination even if a person walks on the inclination angle. It can also be used for barrier-free. In the present embodiment, an uneven portion 28 extending along the longitudinal direction L is formed on the upper surface of the slope portion 27. By providing such a concavo-convex portion 28, there is an advantage that a slip prevention effect can be imparted to the slope portion 27.

  As shown in FIG. 4, the lid member 3 includes a top plate portion 31 provided at the center portion in the width direction W and a pair of engaging portions 32 provided on both sides of the top plate portion 31 in the width direction W. . The top plate 31 is a main part of the lid member 3 that covers the upper opening of the drainage channel 22. The engaging portion 32 is formed at both ends of the top plate portion 31 in the width direction W so as to extend along the longitudinal direction L (that is, the extending direction of the engaged portion 25) while protruding downward. Yes. The pair of engaging portions 32 are engaged with the corresponding engaged portions 25, respectively. The lid member 3 can be attached to and detached from the water channel forming member 2 in accordance with the engagement and disengagement between the engaging portion 32 and the engaged portion 25. The lid member 3 covers the drainage channel 22 formed in the water channel forming member 2 in a state where the lid member 3 is mounted on the water channel forming member 2 (mounted state). The lid member 3 covers the upper opening of the drainage channel 22 in the mounted state.

  As shown in FIG. 1, the drainage guide 1 having the drainage channel 22 therein is installed outside the pipe shaft 92. The drainage guide 1 is installed in the common hallway 91 in a state of crossing the common hallway 91. The drainage guide 1 is installed on the floor surface 93 of the common corridor 91 with the first end E1 facing the drainage structure 95 (drainage groove 95A in this example). A connection guide 5 is connected to the second end E2 of the drainage guide 1 (the end opposite to the first end E1).

  As shown in FIGS. 1 and 5, the connection guide 5 is provided across the inside and outside of the pipe shaft 92 on the vertically lower side than the hot water supply device 7 installed in the pipe shaft 92. The connection guide 5 communicates and connects the drain pipe 77 extending from the hot water supply device 7 and the second end E2 of the drainage guide 1. The connection guide 5 includes a first connection guide member 51, a second connection guide member 55, and an adapter member 59 that are connected to each other. The first connection guide member 51, the second connection guide member 55, and the adapter member 59 can be formed using various materials described in regard to the water channel formation member 2 and the lid member 3. Among them, as an example, a soft vinyl chloride resin can be preferably used.

  The first connection guide member 51 is connected to the downstream end of the drain pipe 77. The first connection guide member 51 is arranged along a first extending portion 51A arranged along the vertical direction and a direction (horizontal direction in this example) intersecting the first extending portion 51A. A second extending portion 51B. A first downflow channel portion 52 extending downward from the connection port with the drain pipe 77 is formed inside the first extension portion 51A. A horizontal water channel portion 53 extending in the horizontal direction from the lower end portion of the first downstream water channel portion 52 toward the outside of the pipe shaft 92 is formed in the second extending portion 51B. In the present embodiment, the horizontal channel portion 53 is provided with a gradient (downward gradient) that gradually decreases from the first downflow channel portion 52 side toward the drainage guide 1 side (second connection guide member 55 side). Yes. For example, the downward gradient may be set to about 1/10 to 1/200 (preferably about 1/100). However, without being limited to such a configuration, the horizontal channel portion 53 may not be provided with a downward slope.

  The 2nd connection guide member 55 is connected to the downstream end part of the 1st connection guide member 51 (2nd extension part 51B). In a state where the first connection guide member 51 and the second connection guide member 55 are connected, these generally have a crank-like bent shape. Inside the second connection guide member 55, a second downflow channel portion 56 that is communicated with the horizontal channel portion 53 and extends downward is formed. In the present embodiment, a guide plate 57 along the vertical direction is installed in the upstream region of the second downstream water channel portion 56. The guide plate 57 is installed in a state in which the edge portion thereof is in contact with the wall surface on the horizontal water channel portion 53 side in the second downstream water channel portion 56. By providing such a guide plate 57, the drain water flowing through the horizontal water channel portion 53 of the first connection guide member 51 can be efficiently guided to the second downstream water channel portion 56.

  As shown in FIGS. 3 and 5, the adapter member 59 is connected to the downstream end of the second connection guide member 55 (second flow down water channel portion 56). The adapter member 59 is connected to the drainage guide 1. The adapter member 59 smoothes the drain water generated in the hot water supply device 7 and naturally flowing through the first connection guide member 51 and the second connection guide member 55 to the drainage channel 22 inside the drainage guide 1. To play a leading role. The drain water that has flowed in passes through the drainage channel 22 and is drained to the drainage structure portion 95 (drainage groove 95A in this example) of the building 9.

  By the way, in order to keep the appearance and environment in the vicinity of the location where the drainage guide 1 is installed (in this example, the common corridor 91 of the building 9), from between the mounting surface of the water channel forming member 2 and the lid member 3 It is necessary to appropriately prevent leakage of drain water to the outside. In this case, from the viewpoint of cost reduction, it is preferable that leakage of drain water can be appropriately suppressed without increasing the number of parts without additionally providing a sealing material or the like, for example. In view of this point, the drainage guide 1 of this embodiment has a waterproof structure as described below.

  As shown in FIG. 6, the pair of engaged portions 25 of the water channel forming member 2 are provided in a concave strip portion 25A extending along the longitudinal direction L (or the drainage channel 22) and an upper opening in the concave strip portion 25A. And a pair of rib-shaped plug bodies 25B. The concave strip portion 25 </ b> A is formed so as to be recessed from the upper surface of the side bank portion 24. The concave stripe portion 25A is configured as a groove portion having a rectangular cross section (in this example, a rectangular shape with rounded bottom corners). The concave strip portion 25 </ b> A is formed wider than the engaging portion 32 of the lid member 3. The width (length in the width direction W) C of the concave strip portion 25 </ b> A is set to be larger than the maximum width of the engaging portion 32.

  A pair of rib-like plug bodies 25B provided in pairs with respect to one recess 25A are opposite to each other from the inner walls on both sides in the width direction W of the recess 25A in the upper opening of the recess 25A. It is formed so as to protrude in the direction. The pair of rib-like plugs 25B are opposed to each other with their tip portions facing each other. In the present embodiment, the pair of rib-like plug bodies 25B are opposed to each other with the tip portions facing each other with a gap. The protruding length of each of the pair of rib-shaped plug bodies 25B (the protruding length from the corresponding inner wall in the concave strip portion 25A) is set so that the sum of the lengths is equal to or less than the width C of the concave strip portion 25A. . That is, the total length of the protruding length of one rib-shaped plug body 25B and the protruding length of the other rib-shaped plug body 25B is set to be equal to or smaller than the width C of the concave strip portion 25A. In the present embodiment, the pair of rib-shaped plug bodies 25B have the same length of protrusion, and in this example, the length is about 1/3 of the width C of the concave strip portion 25A. In this case, the interval (interval in the width direction W) D between the tip portions of the pair of rib-like plug bodies 25B is approximately 1/3 of the width C of the concave strip portion 25A, and the protrusion of one rib-like plug body 25B is provided. About the same length.

  Each of the pair of engaging portions 32 of the lid member 3 has a protrusion 32A extending along the longitudinal direction L (that is, the extending direction of the recess 25A). The protruding portion 32A is formed so as to protrude downward from the lower surface of the top plate portion 31 at a position corresponding to the forming position of the recessed portion 25A. The protrusion 32A is formed wider than the distance (hereinafter referred to as “inter-plug spacing”) D between the tip portions of the pair of rib-shaped plugs 25B. The thickness (thickness in the width direction W) T of the protruding portion 32A only needs to be set to be at least larger than the inter-plug spacing D, for example, 1.1 times, 1.2 times, 1 .3 times, 1.4 times,... The thickness T of the protrusion 32A is preferably, for example, not less than 1.25 times the inter-plug distance D, and particularly preferably not less than 1.5 times the inter-plug distance D.

  When the ridge portion 32A is fitted in the gap where the pair of rib-shaped plug bodies 25B are opposed to each other by the size setting related to the ridge portion 32A, the pair of rib-shaped plug bodies 25B are arranged in the lower part of FIG. As shown, it elastically deforms so as to incline toward the back side of the concave strip portion 25A as the protruding strip portion 32A enters. And after completion | finish of mounting | wearing of the cover member 3 with respect to the water channel formation member 2, a pair of rib-shaped plug body 25B closely_contact | adheres by the elastic restoring force from both sides of the width direction W (thickness direction) with respect to 32 A of protrusion parts. In this way, sealing is realized at two locations, that is, a contact portion between one of the pair of rib-shaped plug bodies 25B and the protruding portion 32A and a contact portion between the other of the pair of rib-shaped plug bodies 25B and the protruding portion 32A. The Since double sealing is performed on both sides of the drainage channel 22 in the width direction W, leakage of drain water can be appropriately suppressed. In addition, since the seal is realized by using the fitting structure of the engaged portion 25 of the water channel forming member 2 and the engaging portion 32 of the lid member 3, it is not necessary to separately install a sealing material.

  In particular, in the present embodiment, the protruding length of each of the pair of rib-shaped plug bodies 25B is set to about 1/3 of the width C of the concave strip portion 25A, and the inter-plug spacing D is also equal to the width C of the concave strip portion 25A. It is about 1/3. Thereby, the ratio of the protruding length of one rib-shaped plug body 25B, the distance D between plug bodies, and the protruding length of the other rib-shaped plug body 25B is about 1: 1: 1. And the protrusion part 32A formed wider than the said inter-plug spacing D is fitted in the inter-plug spacing D which is about the same as the protruding length of each rib-like plug 25B. By setting the sizes of the rib-like plug body 25B and the ridge portion 32A, the amount of elastic deformation of the pair of rib-like plug bodies 25B at the time of fitting with the ridge portion 32A can be set to a suitable amount. As a result, the elastic restoring force by the pair of rib-like plug bodies 25B can be set to a suitable magnitude, and the above-described sealing property (water-stopping property) can be obtained favorably.

  If the thickness T of the protruding portion 32A is excessive with respect to the inter-plug spacing D, it becomes difficult to insert the protruding portion 32A into the gap between the pair of rib-shaped plugs 25B, and the lid member for the water channel forming member 2 The smoothness of the mounting operation 3 may be impaired. In addition, the pair of rib-like plugs 25B may be excessively deformed and a sufficient elastic restoring force (and hence adhesion) may not be obtained. Considering this point, the thickness T of the protrusion 32A is preferably 2.5 times or less of the inter-plug spacing D, for example, and is particularly preferably 2 times or less of the plug-plug spacing D.

  In the present embodiment, the pair of engaging portions 32 of the lid member 3 includes, in addition to the ridge portions 32A, enormous portions 32B formed on the tip side of the ridge portions 32A (the tip side in the mounting direction I). . Note that “the leading end side of the protruding portion 32A” represents a position on the leading end side of the protruding portion 32A with respect to the contact portion between the pair of rib-shaped plug bodies 25B in the mounted state. The enormous part 32B is formed wider than the protrusion part 32A. The enormous portion 32B is formed so as to swell in the width direction W such that the maximum thickness (maximum thickness in the width direction W) is larger than the thickness T of the ridge portion 32A. In this embodiment, the enormous part 32B is formed so as to bulge toward only one side in the width direction W with respect to the protruding part 32A. The enormous portion 32B is formed so as to bulge only toward the center side (drainage channel 22 side) in the width direction W.

  By providing such an enormous portion 32B, the enormous portion 32B functions as a detachment inhibiting portion in a state in which the pair of rib-like plug bodies 25B are in close contact with the protruding portion 32A from both sides in the width direction W by elastic restoring force. To do. That is, even if the engaging portion 32 moves in the direction of coming out of the engaged portion 25 unintentionally, the tip end portion of the rib-like plug body 25B inclined toward the back side of the concave portion 25A becomes the enormous portion 32B. Abutting and further movement is restricted. Therefore, the lid member 3 can be prevented from coming off, and the mounting state of the water channel forming member 2 and the lid member 3 can be appropriately maintained. Of course, it is possible to detach the lid member 3 from the water channel forming member 2 by artificially applying a force of a predetermined magnitude or larger.

  The enormous portion 32B is formed to be narrower than the recessed strip portion 25A. Therefore, the engaging part 32 which has the enormous part 32B in the front end side of the protrusion part 32A can be appropriately inserted with respect to the concave part 25A.

  In the present embodiment, the engaging portion 32 has an inclined surface 32 i that is inclined with respect to the mounting direction I of the water channel forming member 2 and the lid member 3. The inclined surface 32i is formed toward the distal end side (the distal end side in the mounting direction I) of the engaging portion 32 with the formation position of the enormous portion 32B as a base end portion. In the present embodiment, the inclined surface 32i has a constant inclination from the center side (the drainage channel 22 side) in the width direction W toward the outside in the width direction (the slope portion 27 side) as it goes from the base end side to the tip side. It is formed to be inclined at. By providing such a flat inclined surface 32i, the engaging portion 32 is formed so as to become narrower toward the distal end side at the site where the inclined surface 32i is formed. The thickness of the distal end portion of the engaging portion 32 (thickness in the width direction W) is set to be less than the inter-plug spacing D.

  When the lid member 3 is mounted on the water channel forming member 2, first, a narrow tip end portion of the engaging portion 32 is inserted into a gap where the pair of rib-like plug bodies 25 </ b> B are opposed to each other. Since the thickness of the distal end portion of the engaging portion 32 is smaller than the inter-plug spacing D, the insertion operation can be easily performed. When the lid member 3 is further pushed in, the inclined surface 32i of the engaging portion 32 functions as a “guide surface”, and the pair of rib-shaped plug bodies 25B are gradually elastically deformed as the insertion depth of the engaging portion 32 becomes deeper. Acts as follows. Therefore, it is possible to perform the mounting operation while smoothly elastically deforming the pair of rib-like plug bodies 25B. Since the resistance at the time of insertion of the engaging part 32 with respect to the concave part 25A can be suppressed small, the mounting operation of the lid member 3 to the water channel forming member 2 can be easily performed.

  Furthermore, in this embodiment, the inclined surface 25i which inclines with respect to the mounting direction I is formed in the upper surface of a pair of rib-shaped plug body 25B, respectively. The inclined surface 25i is formed so as to be inclined at a constant inclination so as to be directed toward the concave strip portion 25A (the bottom side of the concave strip portion 25A) toward the distal end side of the rib-like plug body 25B. Such an inclined surface 25i serves as a “second guide surface” that guides the engaging portion 32 to a gap where the pair of rib-shaped plug bodies 25B are opposed to each other when the lid member 3 is attached to the water channel forming member 2. Function. Therefore, also from this point, the mounting operation of the lid member 3 on the water channel forming member 2 can be easily performed.

  About the drainage guide 1 of this embodiment, the evaluation test regarding a water stop performance was done. In this evaluation test, five types of drainage guides 1 having different thicknesses T of the protrusions 32A were prepared. Specifically, five types of drainage guides in which the thickness T of the protrusion 32A is set to 1 time, 1.25 times, 1.5 times, 1.88 times and 2 times the inter-plug spacing D, respectively. 1 was prepared. In a state where the first end E1 of the drainage guide 1 was sealed, a test water introduction pipe was connected to the second end E2 to stand up to a height of 1 m. The presence or absence of leakage of drain water from between the mounting surfaces of the water channel forming member 2 and the lid member 3 when the test water introduction tube was filled with test water and water pressure was applied was visually observed. The evaluation results are shown in the table below.

  In Test Example A, a large amount of drain water leakage was observed, whereas in Test Examples B to E, the drain water leakage was not recognized, or even if it was observed, the leakage amount was very small (bleeding). To the extent that occurs. From this, it was confirmed that leakage of drain water can be appropriately suppressed by making the thickness T of the protrusion 32A larger than the inter-plug spacing D (at least 1.25 times or more). In particular, in Test Examples C to E, no leakage of drain water was observed even under severe conditions where a water pressure of a height of 1 m was applied. From this, it was confirmed that the leakage of drain water can be reliably prevented by setting the thickness T of the protrusion 32A to 1.5 times or more the inter-plug spacing D.

[Other Embodiments]
(1) In the above embodiment, the configuration in which the engaging portion 32 includes the enormous portion 32B in addition to the protruding portion 32A has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. 7, the engaging part 32 may have only the protrusion part 32 </ b> A without having the enormous part 32 </ b> B. Even in such a configuration, since a double seal is provided between the pair of rib-shaped plug bodies 25B and the protruding portion 32A, leakage of drain water can be appropriately suppressed.

(2) In the above embodiment, the configuration in which the engaging portion 32 has the inclined surface 32i has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. 8, the engaging portion 32 does not have the inclined surface 32 i but is configured to have, for example, a massive portion 32 </ b> B having a semicircular cross section. May be.

(3) In the above embodiment, the configuration in which the enormous portion 32B is formed so as to bulge only toward one side in the width direction W with respect to the protruding portion 32A has been described as an example. However, without being limited to such a configuration, for example, as shown in FIG. 9, the enormous portion 32B is formed so as to bulge toward both sides in the width direction W with respect to the protruding portion 32A. It may be formed to have a cross-sectional shape (perfect circle shape, oval shape, elliptical shape, etc.). In this case, a pair of inclined surfaces 32i that are inclined in opposite directions may be formed in each of the portions that bulge toward both sides in the width direction W with respect to the protruding portion 32A in the enormous portion 32B.

(4) In the above embodiment, the configuration in which the uneven portion 28 is formed on the upper surface of the slope portion 27 has been described as an example. However, without being limited to such a configuration, the slope portion 27 may not have the uneven portion 28, and the upper surface of the slope portion 27 may be formed in a flat inclined surface.

(5) In the above embodiment, the drain guide 1 has been described as an example of a configuration in which the drain guide 1 is provided across the connection guide 5 and the drain groove 95 </ b> A as an example of the drain structure 95. However, the drainage guide 1 is not limited to such a configuration. For example, the drainage guide 1 includes, for example, a rainwater pipe (including a connection pipe with the drainage groove 95A) disposed in the vertical direction along the outer wall of the building 9, a floor You may provide over the drainage pipe etc. which were embed | buried in the state which penetrates the surface 93, and the connection guide tool 5. FIG.

(6) In the above-described embodiment, the drain guide 1 has been described as an example of a configuration in which the drainage guide 1 is installed in the common hall 91 of the apartment house as an example of the building 9. However, without being limited to such a configuration, the drainage guide 1 may be installed and used on, for example, a veranda. Moreover, the drainage guide 1 may be installed and used in a detached house as another example of the building 9, for example.

(7) In the above embodiment, the example in which the drainage guide 1 is used to guide drainage of drain water generated in the hot water supply device 7 has been described. However, without being limited to such a configuration, for example, the drainage guide 1 may be used to guide drain water drainage generated in at least one of the indoor unit and the outdoor unit of the air conditioner.

  Note that the configurations disclosed in each of the above-described embodiments (including the above-described embodiments and other embodiments; the same applies hereinafter) are applied in combination with the configurations disclosed in the other embodiments unless a contradiction arises. It is also possible.

  Regarding other configurations, it should be understood that the embodiments disclosed herein are illustrative in all respects and that the scope of the present invention is not limited thereby. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Accordingly, other embodiments modified without departing from the spirit of the present invention are naturally included in the scope of the present invention.

  The present invention can be used for, for example, a drainage guide for guiding drainage of drain water.

DESCRIPTION OF SYMBOLS 1 Drain guide 2 Water channel formation member 3 Lid member 22 Drain channel 25 Engagement part 25A Concave part 25B Rib-like plug body 25i Inclined surface 32 Engagement part 32A Projection part 32B Enlarged part 32i Inclined surface L Longitudinal direction W Width Direction I Mounting direction D Spacing between plugs (Spacing between tips of a pair of ribbed plugs)
T Thickness of ridge C C Width of recess

Claims (5)

A water channel forming member in which a drain channel for draining drain water is formed;
A lid member that is detachably attached to the water channel forming member and covers the drainage channel in a mounted state,
The water channel forming member includes a pair of engaged portions provided on both sides in the width direction with respect to the drainage channel,
The lid member includes a pair of engaging portions that engage with the pair of engaged portions,
The pair of engaged parts includes a concave ridge extending along the drainage channel and a pair of rib-shaped plug bodies facing each other in a state where the tip ends face each other at the upper opening in the concave ridge. Have
A pair of said engaging part is a drainage guide tool which each has a protrusion part extended along the said concave part, and was formed wider than the space | interval of the front-end | tip parts of a pair of said rib-shaped plug.   The drainage guide according to claim 1, wherein the engaging portion further includes a huge portion that is formed wider than the protruding portion and narrower than the recessed portion at the distal end side of the protruding portion.   The drainage guide according to claim 2, wherein the enormous portion is formed so as to bulge toward only one side in the width direction with respect to the protruding portion.   The engaging portion has an inclined surface that is inclined with respect to the mounting direction of the water channel forming member and the lid member on the distal end side of the protruding portion, and has a width toward the distal end side in the formation portion of the inclined surface. The drainage guide according to any one of 1 to 3, which is formed to be narrow.   The drainage guide according to any one of claims 1 to 4, wherein a thickness of the protruding portion is 1.5 times or more and 2 times or less of an interval between tip portions of the pair of rib-shaped plugs.

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