JP2010203167A - Bathroom draining device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathroom draining device which can prevent trash such as hair in a hair catcher from clinging to the side peripheral surface and a bottom face of the hair catcher, which facilitates the trash gathering to the center of the hair catcher while a swirl flow is formed, and by which the trash can easily be removed from the hair catcher in cleaning. <P>SOLUTION: The bathroom draining device has no hole in an area P at least from a corner 36 (the lower end of the side peripheral surface 32) where the side peripheral surface 32 and the bottom face 31 intersect each other to the height up to 20% of the total height H of the side peripheral surface 32 of the side peripheral surface 32 of the hair catcher 30. It is preferable that the upper end of the non-hole area P ranges from the corner 36 to the height 20% or higher and 98% or lower, particularly 50% or higher and 95% or lower, of the side peripheral surface 32. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a bathroom drainage device that drains and drains bathtub drainage and washroom drainage into a drain trap, and is particularly configured to receive a bathtub drain in a substantially tangential direction in a drain trap receiving chamber to form a swirling flow. It relates to a bathroom drainage device.

  Japanese Patent No. 3886055, Japanese Patent Application Laid-Open No. 2008-82115 discloses a drainage trap that is provided with an upper part of a washroom drainage receiving port for receiving the washingroom drainage and that forms a swirling flow in the trap by receiving bathtub drainage from the side peripheral surface. In the issue. A basket-like hair catcher with an open top is detachably attached to the washing ground drainage receiving port of the trap. This hair catcher hangs down near the axial center in the trap. When the bathtub drainage flows into the trap and the water level in the trap rises to form a swirling flow, the hair catcher is immersed in the swirling flow, and hair and other debris in the hair catcher collects at the center of the hair catcher. It is done. As a result, the garbage can be picked and thrown away. Further, the inner and outer surfaces of the hair catcher are immersed in the swirling flow to be purified, and slime and the like are removed.

  Japanese Patent Application Laid-Open No. 2008-82115 describes that a portion where a side peripheral surface portion and a bottom surface portion of a hair catcher intersect with each other is a non-porous portion (holeless portion). Thus, if the crossing part of the side peripheral surface part and bottom face part of a hair catcher is made non-porous, it will be prevented that the hair which flowed along the inner surface of a side peripheral surface part flows out out of a bottom hole as it is.

Japanese Patent No. 3886055 JP 2008-82115 A

  In the bathroom drainage device of Patent Document 2, a hole is also provided in the immediate vicinity of the lower end of the side peripheral surface portion of the hair catcher. Therefore, a part of hair or the like accumulated on the bottom of the hair catcher is likely to pass through the hole at the lower part of the side peripheral surface portion of the hair catcher. The hair that partially slips out of the hole becomes entangled with the hole like a wrinkle. Also, when the eddy water level in the trap rises, water enters the hair catcher not only from the hole in the bottom surface portion of the hair catcher but also from the hole in the side peripheral surface portion. The inflowing water is disturbed by the inflowing water from the hole in the side peripheral surface portion, the water flow of the inflowing water from the hole in the bottom surface portion becomes weak, and the hair attached to the bottom surface portion of the hair catcher is not sufficiently peeled off. For this reason, the swirl flow makes it difficult for the hair to sufficiently gather in the center of the hair catcher, and there is a possibility that dust cannot be easily discharged from the hair catcher during cleaning.

  The present invention is a bathroom drainage device equipped with a swirl flow forming type drain trap, and it is difficult for trash such as hair in the hair catcher to be entangled with the side peripheral surface portion and the bottom surface portion of the hair catcher. An object of the present invention is to provide a bathroom drainage device that is easy to gather in the center and that can easily discharge dust from the hair catcher during cleaning.

  The bathroom drainage apparatus of the present invention (Claim 1) is a bathroom drainage apparatus having a drain trap into which washroom drainage flows from above and a bathtub drainage channel for introducing bathtub drainage into the drain trap. Has a washroom drainage receiving port at the top, and the bathtub drainage channel is connected in a substantially tangential direction, and has a receiving chamber for receiving and turning the bathtub drainage from the bathtub drainage channel in a substantially tangential direction. A bathroom drainage device having a side peripheral surface portion and a bottom surface portion each having a plurality of holes, wherein a hair catcher is inserted into the reception chamber through the reception port and attached. In the hair catcher, at least 20% in the height direction of the side peripheral surface portion from the lower end of the side peripheral surface portion is non-porous.

  The bathroom drainage device according to claim 2 is characterized in that, in claim 1, the lower end of the side peripheral surface portion of the hair catcher has an elevation angle of a vertical tangent of the side peripheral surface portion of 30 ° or more.

  The bathroom drainage device according to claim 3 is the bathroom drainage device according to claim 1 or 2, wherein the upper end of the non-porous range is 20% or more and 98% or less in the height direction of the side peripheral surface portion from the lower end of the side peripheral surface portion of the hair catcher. It is characterized by being.

  The bathroom drainage device according to claim 4 is any one of claims 1 to 3, wherein the ratio of the total opening area of the holes of the side peripheral surface portion to the surface area of the outer peripheral surface of the side peripheral surface portion is 1 to 40%. It is characterized by being.

  According to a fifth aspect of the present invention, the bathroom drainage device according to any one of the first to fourth aspects is characterized in that the hole in the side peripheral surface portion extends in a circumferential direction of the side peripheral surface portion. .

  In the bathroom drainage device of the present invention (Claim 1), since the range from the lower end of the side peripheral surface portion of the hair catcher to at least 20% in the height direction of the side peripheral surface portion is non-porous, The hair collected at the bottom of the catcher is prevented from being entangled with the side peripheral surface. In addition, when the vortex water level in the receiving chamber rises, water flows into the hair catcher only from the bottom hole until the vortex water level reaches the height of the hole on the side peripheral surface. The inflowing water is not disturbed by the inflowing water from the side surface, and the water flows into the hair catcher with a strong water force from the bottom surface, so that the hair attached to the bottom surface is sufficiently peeled off from the bottom surface. It is. Accordingly, dust such as hair in the hair catcher is collected at the center of the bottom surface of the hair catcher satisfactorily by the swirling flow without being entangled with the hair catcher at all or almost.

  When the vortex water level in the receiving chamber exceeds the height of the hole in the side peripheral surface, water flows over the hole in the side peripheral surface and the upper end of the side peripheral surface into the hair catcher, and the hair catcher is swirling. Pickled, this swirling flow collects garbage in the center of the hair catcher. At this time, since water flows in the shape of a nozzle in a substantially tangential direction of the side peripheral surface portion from the hole in the side peripheral surface portion into the hair catcher, a swirl flow is efficiently formed in the hair catcher.

  When cleaning the hair catcher, dust such as hair in the hair catcher is collected at the center of the bottom surface of the hair catcher without any or little entanglement with the bottom surface portion or side peripheral surface portion of the hair catcher. This dust can be easily discharged out of the hair catcher.

  As described in claim 2, in the present invention, the lower end of the side peripheral surface portion of the hair catcher is preferably a portion where the elevation angle of the vertical tangent of the side peripheral surface portion is 30 ° or more. By defining in this way, for example, even when the boundary between the bottom surface portion and the side peripheral surface portion has an unclear shape such as a hair catcher having a substantially hemispherical shape, the non-porous range can be clearly set.

  As described in claim 3, the upper end of the non-porous range is preferably 20% or more and 98% or less in the height direction of the side peripheral surface portion from the lower end of the side peripheral surface portion of the hair catcher. Thereby, even when the amount of drainage from the bathtub is relatively small, the swirl flow can be formed by sufficiently flowing water into the hair catcher.

  By limiting the ratio of the total opening area of the holes in the side peripheral surface portion to the surface area of the outer peripheral surface of the side peripheral surface portion as 1 to 40%, the water passing through the holes in the side peripheral surface portion is defined. Since the flow velocity is increased, water flows into the hair catcher with a strong water force from the hole in the side peripheral surface. Thereby, a powerful swirl flow is formed in the hair catcher, and the swirl flow effectively collects dust in the center of the hair catcher.

  According to a fifth aspect of the present invention, it is preferable that the hole in the side peripheral surface portion extends in the circumferential direction of the side peripheral surface portion. By configuring in this way, the hole in the side peripheral surface portion extends in a direction substantially parallel to the swirling direction of the swirling flow in the receiving chamber, so that the swirling flow around the hair catcher passes through the hole in the side peripheral surface portion. It is easy to be transmitted to the water in the hair catcher, and a strong swirl flow is formed in the hair catcher.

It is a typical longitudinal section of the bathroom drainage device concerning an embodiment. It is a perspective view of the drainage trap of the bathroom drainage device of FIG. FIG. 3 is a cross-sectional perspective view taken along line III-III in FIG. 2. It is a perspective view of the hair catcher of the bathroom drainage device of FIG. FIG. 5 is a vertical sectional view taken along line VV in FIG. 4. It is a perspective view of the hair catcher of the bathroom drainage apparatus which concerns on another embodiment. It is a vertical sectional view which follows the VII-VII line of FIG. It is a perspective view of the hair catcher of the bathroom drainage apparatus which concerns on another embodiment. FIG. 9 is a vertical sectional view taken along line IX-IX in FIG. 8. It is a perspective view of the hair catcher of the bathroom drainage apparatus which concerns on another embodiment. It is a vertical sectional view which follows the XI-XI line of FIG. It is a graph which shows the experimental result which verifies the effect of this invention. It is a graph which shows the experimental result which verifies the effect of this invention. It is a graph which shows the experimental result which verifies the effect of this invention.

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

<First Embodiment (FIGS. 1 to 5)>
FIG. 1 is a schematic sectional view of a bathroom drainage apparatus according to an embodiment installed on a floor of a bathroom, FIG. 2 is a specific perspective view of a drain trap of the bathroom drainage apparatus, FIG. Is a sectional view taken along line III-III in FIG. 2, FIG. 4 is a perspective view of the hair catcher, and FIG. 5 is a vertical sectional view taken along line V-V in FIG.

  A drainage basin 4 is integrally formed on the bathtub 3 side of the washing pan 2 of the bathroom 1. A drain trap 10 is connected to the drain 4 from below. The drain trap 10 has a substantially cylindrical receiving chamber 11 whose axial direction is the vertical direction.

  An inflow port 12 on the side surface of the receiving chamber 11 and a drain port 3 a on the bottom surface of the bathtub 3 are connected to each other through a connecting portion 5. The inflow port 12 is provided to allow water to flow in the tangential direction with respect to the receiving chamber 11.

  On the upper surface of the receiving chamber 11, there is provided a washing ground drainage inlet 13 through which wastewater from the washing ground pan 2 side flows through the drainage basin 4.

  The drainage basin 4 is formed in a concave shape integrally with the washing place pan 2. A drain pan (not shown) is covered on the upper surface.

  A cylindrical flange member 14 is attached to the opening at the bottom of the drainage tub 4 via a packing (not shown), and the upper end of the drainage trap 10 is attached to the flange member 14 by screwing. Yes. A hair catcher 30 is detachably inserted into the receiving port 13 from above through the flange member 14. The outer peripheral side of the upper end of the flange member 14 has a bowl shape, and this bowl portion overlaps the edge of the bottom opening of the drainage bowl 4 from above.

  The hair catcher 30 has a basket shape with an open top surface. In this embodiment, the hair catcher 30 has a substantially inverted truncated cone shape that decreases in diameter toward the lower side. Details of the hair catcher 30 will be described later. The hair catcher 30 is supported by the flange member 14 so that the lower end thereof is positioned slightly above the sealing surface W in the drain trap 10. The hair catcher 30 is locked to a locking portion (not shown) of the flange member 14 so that the hair catcher 30 does not float even if pushed upward by a swirling flow formed in the drain trap 10.

  As clearly shown in FIGS. 1 and 3, an outlet 16 is provided at the center of the bottom surface of the receiving chamber 11. An outflow chamber 17 is provided below the receiving chamber 11, and the outflow port 16 communicates with the outflow chamber 17. The outflow chamber 17 is connected to a rising chamber 18 that rises along the side surface of the receiving chamber 11.

  In this embodiment, the rising chamber 18 is provided on the side opposite to the inlet 12, but is not limited thereto. The rising chamber 18 rises above the sealing surface W along the outer surface of the receiving chamber 11. A drainage pipe connecting portion 20 as a drainage channel is connected to the upper portion of the rising chamber 18. A drain pipe 21 is connected to the drain pipe connecting portion 20. The level of the bottom surface of the drain pipe connecting portion 20 is a sealing surface W.

  Ventilation pipes 22 and 23 are provided so as to communicate the interior of the rising room 18 and the bathroom. The ventilation pipe 23 is provided integrally with the hair catcher 30 in the vertical direction. The lower end of the vent pipe 23 is detachably fitted to the upper end of the vent pipe 22. The ventilation pipe 22 extends from the inside of the receiving chamber 11 into the rising chamber 18 through the side peripheral wall thereof. The lower end portion of the vent pipe 22 has a large diameter cylindrical shape, and a plurality of small holes 22a are provided on the bottom surface. When water flows into the rising chamber 18, bubbles are mixed into the flowing water through the vent pipes 22 and 23.

  In addition, even if the swirling flow in the receiving chamber 11 acts on the hair catcher 30 by fitting the vent pipes 22 and 23, the hair catcher 30 does not swirl.

  As shown in FIGS. 4 and 5, in this embodiment, the hair catcher 30 includes a substantially circular bottom surface portion 31, and a substantially cylindrical side peripheral surface portion 32 that rises substantially upward from the peripheral edge portion of the bottom surface portion 31. A plurality of water passage holes 33 and 34 provided in the bottom surface portion 31 and the side peripheral surface portion 33, a flange 35 projecting laterally from the upper end of the side peripheral surface portion 32, and the vent pipe 23 etc. In this embodiment, a corner portion 36 (FIG. 5) where the side peripheral surface portion 32 and the bottom surface portion 31 intersect is the lower end of the side peripheral surface portion 32. When the hair catcher 30 is mounted, the collar portion 35 engages with the locking portion of the flange member 14.

  As shown in FIG. 5, in this embodiment, the bottom surface portion 31 has a substantially conical shape that becomes lower toward the center side. The side peripheral surface portion 32 has a tapered shape whose diameter increases toward the upper end side. The vent pipe 23 penetrates the side peripheral surface portion 32 in a substantially vertical direction.

  The hole 33 in the bottom surface portion 31 penetrates the bottom surface portion 31 in a substantially vertical direction. The holes 33 are evenly distributed over substantially the entire bottom surface portion 31.

  In this embodiment, each hole 34 of the side peripheral surface portion 32 has a slit shape extending in the circumferential direction of the side peripheral surface portion 32. Each hole 34 is provided in a straight line at a predetermined interval in the circumferential direction of the side peripheral surface portion 32 at substantially the same height from the corner portion 36 of the side peripheral surface portion 32. In this embodiment, the hole 34 penetrates the side peripheral surface portion 32 in a substantially horizontal direction from the center side of the hair catcher 30 outward.

  As shown in FIG. 5, each hole 34 is disposed on the upper end side of the side peripheral surface portion 32 with respect to the height of 20% of the total height H of the side peripheral surface portion 32 from the corner portion 36. The total height H of the side peripheral surface portion 32 refers to the height in the vertical direction from the corner portion 36 to the lower end of the flange portion 35. That is, in the side peripheral surface portion 32, at least a range P from the corner portion 36 to a height of 20% of the total height H of the side peripheral surface portion 32 is non-porous. The upper end of the non-porous range P is preferably located at a height of 20% or more, particularly 50% or more of the total height H from the corner portion 36 to the side peripheral surface portion 32. In addition, when it is non-porous from the corner part 36 to the range higher than 98% of the height direction of the side peripheral surface part 32, when the amount of drainage from the bathtub 3 is comparatively small, a swirl flow will be in the hair catcher 30. Since there is a possibility that it is not sufficiently formed, the upper end of this non-porous range P is located at a height of 20% or more and 98% or less, particularly 50% or more and 95% or less in the height direction from the corner portion 36 to the side peripheral surface portion 32. It is preferable.

  The total height H from the corner portion 36 of the side peripheral surface portion 32 is preferably 10 mm or more, particularly 20 mm or more. Moreover, since the hair catcher 30 will become extremely deep when the total height H becomes 100 mm or more, it is preferable that the total height H from the corner part 36 of the side peripheral surface part 32 is 100 mm or less, especially 50 mm or less.

  The diameter Db (FIG. 5) of the bottom surface portion 31 is preferably 40 to 90 mm, particularly 50 to 80 mm.

  The ratio of the total opening area of the holes 34 to the surface area of the outer peripheral surface of the side peripheral surface portion 32 is preferably 1 to 40%, particularly preferably 5 to 15%. By limiting the total opening area of the holes 34 in this way, the flow rate of water through these holes 34 is increased, so that water flows into the hair catcher 30 from these holes 34 with a strong water force. Become. Thereby, a strong swirl flow is formed in the hair catcher 30, and dust is effectively collected in the center of the hair catcher 30 by this swirl flow. If the ratio of the total opening area of the holes 34 to the surface area of the outer peripheral surface of the side peripheral surface portion 32 is larger than 40%, the effect of increasing the flow rate of water passing through these holes 34 is reduced. There is a possibility that the water flow of the swirling flow formed at the bottom will be weakened and it will not be possible to collect dust effectively in the center of the hair catcher 30.

  The arrangement of the holes 34 is not limited to the arrangement shown in the drawing as long as it is positioned higher than the non-hole range P. Further, the shape of the hole 34 is not limited to the illustrated shape.

  By making the hole 34 into a slit shape extending in the circumferential direction of the side peripheral surface portion 32 (that is, a direction substantially parallel to the swirling direction of the swirling flow), the swirling flow around the hair catcher 30 is transferred to the water in the hair catcher 30 It is easy to be transmitted, and a strong swirl flow is formed in the hair catcher 30. In this case, by setting the number of the columnar portions 34a between the holes 34, 34 adjacent to each other in the circumferential direction of the side peripheral surface portion 32 to 4 to 32, particularly 4 to 16, the columnar portions 34a It is possible to prevent the swirling flow around the hair catcher 30 from becoming difficult to be transmitted to the water in the hair catcher 30.

  Next, the operation of the bathroom drainage apparatus configured as described above will be described.

  When the drain plug of the drain port 3 a of the bathtub 3 filled with water is pulled out, the water in the bathtub 3 flows into the receiving chamber 11 of the drain trap 10 from the inlet 12, and a swirling swirl flow is generated in the receiving chamber 11. Form. The water level in the receiving chamber 11 gradually rises, and the hair catcher 30 or further the drainage basin 4 is in a state of being submerged in the swirling flow. Thereby, dust adhering to the inner surface of the drainage tub 4 and the hair catcher 30 is scraped off, and dust such as hair is collected at the center of the vortex and collected at the center of the bottom surface of the hair catcher 30.

  In this bathroom drainage device, a range P from the lower end (corner portion 36) of the side peripheral surface portion 32 of the hair catcher 30 to at least 20% of the total height H of the side peripheral surface portion 32 is non-porous. Therefore, the hair etc. collected at the bottom of the hair catcher 30 is prevented from being entangled with the side peripheral surface portion 32. When the vortex water level in the receiving chamber 11 rises, water flows into the hair catcher 30 only from the hole 33 in the bottom surface portion 31 until the vortex water level reaches the height of the hole 34 in the side peripheral surface portion 32. Therefore, the inflow water from the hole 33 in the bottom surface portion 31 is not disturbed by the inflow water from the hole 34 in the side peripheral surface portion 32, and water enters the hair catcher 30 with a strong water force from the hole 33 in the bottom surface portion 31. Since it flows in, the hair attached to the bottom surface portion 31 is sufficiently peeled off from the bottom surface portion 31. Accordingly, dust such as hair in the hair catcher 30 is collected at the center of the bottom surface of the hair catcher 30 by the swirl flow without being entangled with the hair catcher 30 at all or almost.

  When the vortex water level in the receiving chamber 11 becomes equal to or higher than the hole 34 of the side peripheral surface portion 32, the water flows over the hole 34 and the upper end of the side peripheral surface portion 32 into the hair catcher 30, and the hair catcher 30 is swirling. Soak in.

  In this embodiment, the upper end of the non-porous range P is 20% or more and 98% or less in the height direction of the side peripheral surface portion 32 from the lower end of the side peripheral surface portion 32 of the hair catcher 30. Even when the amount of drainage is relatively small, water sufficiently flows into the hair catcher 30 to form a swirling flow.

  A part of the water swirling in the receiving chamber 11 flows down from the vicinity of the center of the vortex through the outlet 16 at the bottom center of the receiving chamber 11 to the outflow chamber 17, and the outflow chamber 17, the rising chamber 18, and the drainage. It flows out to the drain pipe 21 through the pipe connecting portion 20.

  When water flows into the outflow chamber 17 and the rising chamber 18, bubbles are mixed into the flowing water through the vent pipes 23 and 22 and the small holes 22a. Thereby, the negative pressure generated in the drain pipe 21 is reduced. As a result, almost all the water in the outflow chamber 17 and the rising chamber 18 of the drain trap 10 is prevented from being sucked out to the drain pipe 21 and the drain trap 10 being broken.

  When all the water flows out from the bathtub 3, the swirling flow stops and the sealed water at the level of the sealing surface W remains in the drain trap 10. Further, water also flows into the ventilation pipe 22 from the small hole 22 a, and sealing water exists in the ventilation pipe 22 up to the sealing surface W.

  Thereby, both the drain pipe 21 side and the washing place and the bathtub 3 side are isolated by the sealed water, and the odor of the drain pipe 21 is prevented from flowing back to the washing place and the bathtub 3.

  When the hair catcher 30 is cleaned, the drain pan is removed, the vent pipe 23 is picked, the hair catcher 30 is taken out, and the dust in the hair catcher 30 can be thrown away.

  As described above, in this bathroom drainage device, the dust in the hair catcher 30 is not entangled with the bottom surface portion 31 and the side peripheral surface portion 32 of the hair catcher 30 at all or almost without the bottom surface of the hair catcher 30. Since it is collected in the central part, this dust can be easily discharged out of the hair catcher 30.

[Experimental example]
<Experiment 1> In the bathroom drainage device described above, when the height of the upper end of the non-porous range P from the lower end of the side peripheral surface portion 32 is changed, the hair collected in the central portion of the hair catcher 30 by the swirling flow in the receiving chamber 11 An experiment was conducted to verify how the amount changes.

  The diameter Dt (FIG. 5) of the upper end portion of the hair catcher 30 was 105 mm, the diameter Db of the bottom surface portion 31 was 65 mm, and the total height H of the side peripheral surface portion 32 from the corner portion 36 was 25 mm. The height of the upper end of the non-porous range P from the corner portion 36 is changed to 0%, 20%, 40%, 60%, 80%, 100% of the total height H of the side peripheral surface portion 32, and in each case, the hair catcher 30 With the hair inside, 100 L (liter) of water was discharged from the bathtub 3, and the amount of hair collected at the center of the hair catcher 30 was measured by the swirling flow formed in the receiving chamber 11. The results are shown in FIG.

  As apparent from FIG. 12, when the height of the upper end of the non-porous range P exceeds 20% of the total height H of the side peripheral surface portion 32 from the corner portion 36, the amount of hair collected at the center portion of the hair catcher 30 is remarkable. To increase. In addition, statistically, when a bathroom is used for one week by a normal usage method at an average usage frequency in an average family structure, the hair catcher 30 has a dry weight of around 2.0 g (gram). Hair accumulates. Therefore, in general, when the hair catcher 30 is drained in a state where about 2.0 g of hair is contained, it is determined whether or not the total amount of the hair can be collected in the center of the hair catcher 30. It is regarded as a measure of the trap performance.

  <Experiment 2> In the bathroom drainage device described above, the number of the columnar portions 34a between the holes 34 adjacent to each other in the circumferential direction of the side peripheral surface portion 32 is 2, 4, 8, 16, 32. In each case, the height of the upper end of the non-porous range P from the corner portion 36 is set to 80% of the total height H of the side peripheral surface portion 32, and the hair is put in the hair catcher 30 and 100 L from the inside of the bathtub 3. (Liter) of water was discharged, and the amount of hair collected at the center of the hair catcher 30 by the swirling flow formed in the receiving chamber 11 was measured. Other specifications are the same as those in Experiment 1. The results are shown in FIG.

  As is apparent from FIG. 13, when the number of the columnar portions 34a is 4 to 16, the amount of hair collected at the center of the hair catcher 30 is significantly large.

  <Experiment 3> In the bathroom drainage device described above, the ratio of the total opening area of the holes 34 to the surface area of the outer peripheral surface of the side peripheral surface portion 32 is changed to 0%, 5%, 10%, 20%, 40%, and 60%. In each case, the height of the upper end of the non-porous range P from the corner portion 36 is set to 80% of the total height H of the side peripheral surface portion 32, and 100 L (liters) from the inside of the bathtub 3 with the hair in the hair catcher 30 ) Was discharged, and the amount of hair collected at the center of the hair catcher 30 by the swirling flow formed in the receiving chamber 11 was measured. Other specifications are the same as those in Experiment 1. The results are shown in FIG.

  As is apparent from FIG. 14, when the total opening area of the holes 34 with respect to the surface area of the outer peripheral surface of the side peripheral surface portion 32 is 5 to 40%, the amount of hair collected in the central portion of the hair catcher 30 is remarkably large. It will be a thing.

  In addition, when the total opening area of the hole 34 with respect to the surface area of the outer peripheral surface of the side peripheral surface part 32 exceeds 40%, the amount of hair collected in the center part of the hair catcher 30 will reduce remarkably.

<Second Embodiment (FIGS. 6 and 7)>
FIG. 6 is a perspective view of a hair catcher of a bathroom drainage apparatus according to another embodiment, and FIG. 7 is a vertical sectional view taken along line VII-VII in FIG.

  In the hair catcher 30 of the first embodiment, the hole 34 is provided only in the vicinity of the upper end of the side peripheral surface portion 32, but the side peripheral surface portion 32 extends from the lower end (corner portion 36) of the side peripheral surface portion 32. As long as it is within a range higher than 20% of the total height H, the arrangement of the holes 34 is not limited to this.

  In the hair catcher 30A of FIGS. 6 and 7, slit-like holes 34 extending in the circumferential direction of the side peripheral surface portion 32 are arranged in multiple stages (three stages in this embodiment. However, even if there are two stages, The number of the holes 34 may be four or more, and the hole 34 may not be a slit shape extending in the circumferential direction of the side peripheral surface portion 32. The lowermost hole 34 is located at a height of 20% of the total height H of the side peripheral surface part 32 from the corner part 36 or slightly higher (for example, 2 to 5 mm), and the uppermost hole 34 is preferably a corner part. 36 to 98% of the total height H of the side peripheral surface portion 32, particularly preferably lower than the height of 95%. In the hair catcher 30 </ b> A, a non-hole range P is defined between the corner portion 36 and the lowermost hole 34.

  Other configurations of the hair catcher 30A are the same as those of the hair catcher 30 in the first embodiment described above.

  Even in the bathroom drainage device provided with the hair catcher 30A, the same operational effects as the bathroom drainage device of the first embodiment are exhibited.

  In this hair catcher 30A, the lowermost hole 34 is located at a height of 20% of the total height H from the corner portion 36 to the side peripheral surface portion 32 or slightly higher than that. Even if there is little, water will sufficiently flow into the hair catcher 30A. Further, in this hair catcher 30A, since the holes 34 are provided in multiple stages, the swirling flow around the hair catcher 30A is sufficiently transmitted to the water in the hair catcher 30A, and is strong in the hair catcher 30A. A swirling flow is formed.

<Third Embodiment (FIGS. 8 and 9)>
FIG. 8 is a perspective view of a hair catcher of a bathroom drainage apparatus according to another embodiment, and FIG. 9 is a vertical sectional view taken along line IX-IX in FIG.

  In the hair catchers 30 and 30A of the first and second embodiments described above, the bottom surface portion 31 is substantially flat and the side peripheral surface portion 32 is substantially cylindrical. The shape of the hair catcher is not limited to this, although it is substantially L-shaped.

  The hair catcher 30B shown in FIGS. 8 and 9 is curved in a substantially hemispherical shape continuously from the bottom center vicinity to the upper end vicinity. In the present invention, in the substantially hemispherical hair catcher 30B in which the boundary between the bottom surface portion 31 and the side peripheral surface portion 32 is unclear in this way, as shown in FIG. In the vertical section, a portion where the elevation angle θ with respect to the horizontal direction of the tangent S in the vertical cross section is 30 ° or more is defined as a boundary portion between the bottom surface portion 31 and the side peripheral surface portion 32. Reference numeral 37 in FIG. 9 indicates a boundary portion between the bottom surface portion 31 and the side peripheral surface portion 32. The center of the bottom surface of the hair catcher 30B is the bottom surface portion 31 than the boundary portion 37, and the upper end side of the hair catcher 30B is the side peripheral surface portion 32. This boundary portion 37 becomes the lower end of the side peripheral surface portion 32.

  In this hair catcher 30 </ b> B, a hole 34 is provided on the upper end side of the side peripheral surface portion 32 with respect to a height of 20% of the total height H of the side peripheral surface portion 32 from the boundary portion 37. In this embodiment, like the hair catcher 30 in the first embodiment described above, the hole 34 has a slit shape extending in the circumferential direction of the side peripheral surface portion 32, and the plurality of holes 34 have side peripheral surface portions. It is provided in a straight line at a predetermined interval in the circumferential direction of the side peripheral surface portion 32 at substantially the same height from the 32 boundary portions 37.

  Other configurations of the hair catcher 30B are the same as those of the hair catcher 30 in the first embodiment described above.

  Even in the bathroom drainage device provided with the hair catcher 30B, the same operational effects as the bathroom drainage device of the first embodiment are exhibited.

<Fourth Embodiment (FIGS. 10 and 11)>
FIG. 10 is a perspective view of a hair catcher of a bathroom drainage apparatus according to another embodiment, and FIG. 11 is a vertical sectional view taken along line XI-XI of FIG.

  In the hair catcher 30B of the third embodiment described above, the hole 34 is provided only in the vicinity of the upper end of the side peripheral surface portion 32, but the side peripheral surface portion 32 extends from the lower end (boundary portion 37) of the side peripheral surface portion 32. As long as it is within a range higher than 20% of the total height H, the arrangement of the holes 34 is not limited to this.

  In the hair catcher 30C shown in FIGS. 10 and 11, the slit-like holes 34 extending in the circumferential direction of the side peripheral surface portion 32 are arranged in multiple stages (this is the same as the hair catcher 30A of the second embodiment described above. In the embodiment, there are three stages, however, there may be two stages or four or more stages, and the hole 34 may not be a slit shape extending in the circumferential direction of the side peripheral surface portion 32. It has been. The lowermost hole 34 is located at a height of 20% of the total height H of the side peripheral surface part 32 from the boundary part 37 or slightly higher (for example, 2 to 5 mm), and the uppermost hole 34 is preferably a boundary part. 37 to 98% of the total height H of the side peripheral surface portion 32, particularly preferably lower than the height of 95%. Also in the hair catcher 30 </ b> C, the non-porous range P is between the boundary portion 37 and the lowermost hole 34.

  Other configurations of the hair catcher 30C are the same as those of the hair catcher 30B in the third embodiment described above.

  Even in the bathroom drainage device provided with the hair catcher 30C, the same function and effect as the bathroom drainage device of the first embodiment can be obtained.

  Moreover, in this hair catcher 30C, the lowermost hole 34 is located slightly higher than 20% of the total height H of the side peripheral surface portion 32 from the boundary portion 37, so that the amount of drainage from the bathtub 3 is small. However, water sufficiently flows into the hair catcher 30C. Further, in this hair catcher 30C, since the holes 34 are provided in multiple stages, the swirling flow around the hair catcher 30C is sufficiently transmitted to the water in the hair catcher 30C, and is strong in the hair catcher 30C. A swirling flow is formed.

  The above-described embodiment is an example of the present invention, and the present invention can take other forms than shown.

DESCRIPTION OF SYMBOLS 11 Reception chamber 12 Inlet 16 Outlet 18 Outlet chamber 19 Outlet member 20 Drain pipe connection part 21 Drain pipe 22, 23 Vent pipe 30, 30A, 30B, 30C Hair catcher 31 Bottom face part 32 Side peripheral surface part 33 Bottom part hole 34 A hole in the side surface portion 36 A corner portion where the bottom surface portion and the side surface portion intersect 37 A boundary portion between the bottom surface portion and the side surface portion

Claims (5)

A drain trap into which the washroom drainage flows from above,
A bathroom drainage device having a bathtub drainage channel for introducing bathtub drainage into the drain trap,
The drain trap has a washing ground drain receiving port at an upper portion thereof, and the bathtub drainage channel is connected in a substantially tangential direction. A room,
A hair catcher is inserted and installed in the receiving room through the receiving port,
In the bathroom drainage device, the hair catcher has a side surface portion and a bottom surface portion each having a plurality of holes.
The bathroom drainage device, wherein a range of at least 20% in the height direction of the side peripheral surface portion from the lower end of the side peripheral surface portion of the hair catcher is non-porous.   The bathroom drainage device according to claim 1, wherein an elevation angle of a vertical tangent of the side peripheral surface portion of the lower end of the side peripheral surface portion of the hair catcher is 30 ° or more.   The bathroom drainage device according to claim 1 or 2, wherein an upper end of the non-porous range is 20% to 98% in a height direction of the side peripheral surface portion from a lower end of the side peripheral surface portion of the hair catcher. .   The bathroom drainage device according to any one of claims 1 to 3, wherein a ratio of a total opening area of holes of the side peripheral surface portion to a surface area of the outer peripheral surface of the side peripheral surface portion is 1 to 40%. .   The bathroom drainage device according to any one of claims 1 to 4, wherein the hole of the side peripheral surface portion extends in a circumferential direction of the side peripheral surface portion.

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