JP6651946B2 - Drain trap - Google Patents

Description

  Aspects of the present invention generally relate to bathroom drain traps.

  There is a bathroom drain trap that is connected to a bathtub drain, a washbasin drain, and a drainpipe to drain water from the bathtub or washbasin to the drainpipe. The drain trap suppresses odors, pests, and the like from the drain pipe from going to the bathroom side by storing sealed water inside.

  A basket-like member called a hair catcher is detachably provided in the drain trap. The hair catcher is removably attached to the receiving port, which is the connection with the drain of the washing area, and prevents foreign substances such as hair from entering the trap without preventing the water from flowing into the trap. I do.

  In such a drain trap, it has been proposed to form a swirling flow in the trap by water flowing from a drain port of a bathtub (for example, Patent Document 1). While forming a swirling flow in the trap, the water level in the trap is temporarily raised, and the hair catcher is immersed in the swirling flow. Thereby, for example, the foreign substances accumulated in the hair catcher are collected, and the foreign substances can be easily discarded. In addition, the surface of the hair catcher is purified by the swirling flow, and the generation of slime on the surface of the hair catcher can be suppressed.

  In a drain trap that forms a swirling flow, if the hair catcher moves under the influence of the swirling flow, the effect of collecting foreign substances and the effect of suppressing slime decrease. For this reason, in the drain trap that forms a swirling flow, the movement of the hair catcher in the vertical direction and the swirling direction is regulated by engaging the hair catcher near the receiving port.

  As shown in FIG. 8, for example, in the trap body MB of the drain trap DT, an engagement protrusion EP is provided on an inner peripheral surface below the receiving opening OP, and the engagement groove EG that engages with the engagement protrusion EP is hair-shaped. It is proposed to provide it on the outer peripheral surface of the catcher HC. The engagement projection EP projects inward. The plurality of engagement protrusions EP are provided at predetermined intervals in the circumferential direction of the inner peripheral surface in the trap body MB, for example. The engagement groove EG extends in the circumferential direction of the outer peripheral surface of the hair catcher HC, for example, and a plurality of engagement grooves EG are provided corresponding to the engagement portions EP.

  As shown in FIG. 9A, in attaching the hair catcher HC, first, with the upper end of the hair catcher HC being substantially horizontal, the flange portion HCf provided on the upper portion is attached to the plurality of engagement protrusions EP. Place on top. The flange portion HCf is a portion that radially extends outward from an upper end portion of the basket-shaped main body portion of the hair catcher HC. Thereafter, as shown in FIG. 9 (b), each engagement protrusion EP and each engagement groove EG are engaged with each other while rotating the hair catcher HC in the turning direction. Each of the engagement protrusions EP is inserted into each of the engagement grooves EG to regulate the movement in the vertical direction, and the engagement protrusions EP are brought into contact with the end surfaces of the respective engagement grooves EG to regulate the movement in the turning direction. Thereby, the movement of the hair catcher HC in the up-down direction and the turning direction is restricted by the engagement between each engagement protrusion EP and each engagement groove EG. Further, by providing each engagement protrusion EP on the inner peripheral surface below the receiving opening OP of the drain trap HC, and providing the engagement groove EG engaging with each engagement protrusion EP on the outer peripheral surface of the hair catcher HC, There is no need to provide a convex portion on the upper surface of the drain trap DT near the receiving port OP, and hair contained in drainage does not get caught on the convex portion.

  Further, the hair catcher HC is provided with a handle HCh that extends substantially horizontally outward from the upper end. Accordingly, the foreign matter captured in the hair catcher HC can be easily discarded by operating the handle HCh.

  Further, the hair catcher HC is formed to be slightly smaller than the receiving opening OP, and is attached in a state fitted in the receiving opening OP. The upper end of the hair catcher HC is located substantially flush with the receiving opening OP or below the receiving opening OP. This makes it easier for the wastewater from the washing place to flow into the hair catcher HC. Further, by forming the hair catcher HC so as to fit into the receiving opening OP, the hair catcher HC can be made smaller than in the case where the hair catcher HC is formed larger than the receiving opening OP, and the hair catcher HC can be more easily operated. be able to. Operability when discarding the captured foreign matter can be further improved.

  As shown in FIG. 10, the drain port 4 of the washing place 2 is provided on the bottom surface 3 a of the recess 3 in order to suppress overflow of drain water. The size of the bottom surface 3a of the concave portion 3 is slightly larger than the size of the receiving opening OP, and the upright surface 3b of the concave portion 3 is arranged close to the receiving opening OP.

  Accordingly, in order to prevent the hand holding the handle HCh on the side of the hair catcher HC from hitting the corner portion CNR between the floor surface 2a of the washing room 2 and the rising surface 3b of the concave portion 3, the user is required. In some cases, the handle HCh is picked up and the basket-shaped main body portion of the hair catcher HC is obliquely inserted into the receiving opening OP as shown in FIG. When the hair catcher HC is obliquely inserted into the receiving opening OP, the hair catcher HC may pass through between the engagement protrusions EP and be immersed in the water sealed in the trap body MB.

  As described above, in the drain trap DT that forms a swirling flow, the hair catcher HC may be immersed in the sealing water in the trap body MB when the hair catcher HC is attached. Water sealing may be in an unsanitary state due to mixing of soap scum and the like. For this reason, if the hair catcher HC is immersed in the sealing water, there is a risk that the user will be stressed.

  If the hair catcher HC is larger than the receiving opening OP, it is possible to suppress the hair catcher HC from being immersed in the sealing water, but on the other hand, the size of the hair catcher HC becomes large, which leads to a decrease in operability, and The functionality of the catcher HC will be reduced.

  Therefore, in the drain trap DT that forms a swirling flow, it is desired that the hair catcher HC can be prevented from being immersed in the sealed water without lowering the functionality of the hair catcher HC.

JP 2012-172422 A

  The present invention has been made based on the recognition of such a problem, and an object of the present invention is to provide a drain trap that can suppress the hair catcher from being immersed in the sealed water without lowering the functionality of the hair catcher. And

  The first invention has a receiving port connected to a drain port provided on a bottom surface of a recess in a washing place, an inlet port connected to a drain port of a bathtub, and an outlet port connected to a drain pipe. A trap body for allowing water flowing from the receiving port and the inflow port to flow out from the outflow port, and blocking a path from the receiving port and the inflow port to the outflow port by sealing water; A hair catcher that is detachably attached to the inlet and suppresses intrusion of foreign matter from the receiving port into the trap main body.The trap main body has a bottomed cylindrical shape in which the receiving port is provided at an upper part. There is a sealed water storage part capable of storing the sealed water therein while discharging the inflowing water toward the outflow port, and by ejecting the water flowing from the inflow port into the sealed water storage part. , Of the sealed water storage section Forming a swirling flow swirling along a surface, temporarily raising the water level in the sealed water storage portion, and immersing the hair catcher in the swirled flow; an inner peripheral surface of the sealed water storage portion A plurality of engagement grooves which are provided at predetermined intervals in the circumferential direction and extend downward from the upper end at the upper part of the water sealing storage part, and the hair catcher is in a cage shape concaved downward. A main body part which fits into the receiving port and at least a part of which enters the water sealing storage part, a handle part which extends outward from an upper end of the main body part, and a predetermined distance in a circumferential direction on an outer peripheral surface of the main body part A plurality of engagement protrusions that are provided with a gap, protrude outward, and engage with any of the plurality of engagement grooves, wherein the plurality of engagement grooves are any one of the plurality of engagement protrusions. The plurality of A restricting portion that restricts the vertical movement of the engaging protrusion, wherein the plurality of engaging protrusions are configured such that the main body portion seals the water in a predetermined posture in which engagement with the plurality of engaging grooves is possible. A drain trap, wherein the drain trap is configured to allow the body to enter the reservoir and to prevent the main body from entering the sealed reservoir in a posture different from the predetermined posture.

  According to this drain trap, even when the hair catcher is affected by the swirling flow, the plurality of engagement protrusions of the hair catcher engage with the plurality of engagement grooves provided on the inner peripheral surface of the water sealing storage part. Therefore, the rotation of the hair catcher can be suppressed, and the movement of the hair catcher up and down under the influence of the swirling flow can be suppressed by the restricting portion. Further, in a state where the plurality of engagement protrusions are engaged with the plurality of engagement grooves, the engagement protrusion abuts on a lower end of the engagement groove provided on the upper part of the water-sealing storage part. The hair catcher does not penetrate into the sealed water storage part so deep that it is immersed. In addition, when the hair catcher is mounted, if it is attempted to mount the hair catcher in a posture different from a predetermined posture in which the engagement protrusions and the engagement grooves can be engaged, the main body may enter the water sealing storage part. Because it is regulated, it is possible to prevent the hair catcher from being immersed in the sealing water. Therefore, it is possible to provide a drain trap that can suppress the hair catcher from being immersed in the sealing water without lowering the functionality of the hair catcher. In addition, since each engagement groove is formed so as to extend downward from the upper end in the upper part of the water sealing storage part, when mounting the hair catcher, the upper end of each engagement groove is easily made visible to the user, Each engagement protrusion can be easily engaged with each engagement groove in a predetermined posture.

  According to a second aspect of the present invention, in the first aspect, the restricting portion is a cutout portion extending in a circumferential direction of the inner peripheral surface from a lower end of the engaging groove and engaging with the engaging protrusion. Drain trap.

  According to this drain trap, there is no need to separately provide a member for regulation, and the regulation portion can be provided with a simple structure. In addition, the engagement protrusion can be engaged with the cutout portion by a simple operation of rotating the hair catcher.

  A third invention is the drain trap according to the first invention, wherein the regulating portion is a throttle portion in which a part of the engagement groove has a reduced width.

  According to this drain trap, there is no need to separately provide a member for regulation, and the regulation portion can be provided with a simple structure. Further, the engagement protrusion can be engaged with the engagement groove below the throttle portion by a simple operation of pushing the hair catcher.

  A fourth invention is the drain trap according to any one of the first to third inventions, wherein the plurality of engagement projections are formed in a vertically long shape that is long in a vertical direction.

  According to this drain trap, since each engagement projection is formed in a vertically long shape, it can be attached only when the hair catcher is in a substantially horizontal posture. Therefore, it is possible to prevent the hair catcher from being obliquely inserted into the reception port. Thereby, it can suppress more reliably that a hair catcher is immersed in sealing water.

  In a fifth aspect based on any one of the first to fourth aspects, the plurality of engagement projections are provided at least on a right end and a left end of the main body with reference to a position of the handle. It is a drain trap characterized by the above-mentioned.

  According to this drain trap, when the hair catcher is to be mounted in an improper posture with the handle portion being pinched, each engagement protrusion can be easily brought into contact with the receiving port. For example, it is possible to more reliably suppress the hair catcher from being immersed in the water seal without requiring a large number of engaging projections or excessively large engaging projections.

  A sixth invention is the drain trap according to the fifth invention, wherein the plurality of engagement projections are further provided at a front end and a rear end of the main body.

  According to this drain trap, it is possible to more surely prevent the hair catcher from being immersed in the sealing water when trying to attach the hair catcher in an inappropriate posture with the handle portion being picked. it can.

  According to an aspect of the present invention, there is provided a drain trap capable of suppressing the hair catcher from being immersed in the water seal without lowering the functionality of the hair catcher.

It is a perspective view showing the drain trap concerning an embodiment. It is a sectional view showing the drain trap concerning an embodiment. It is a perspective view showing the use condition of the drain trap concerning an embodiment. It is explanatory drawing explaining the flow of water when water flows in from an inflow port. It is a perspective view showing the hair catcher and fastening flange which concern on embodiment. It is a reference drawing showing the attachment state of a hair catcher. FIGS. 7A to 7C are explanatory diagrams illustrating a modification of the engagement groove according to the embodiment. It is a top view showing the reference drain trap. FIGS. 9A and 9B are explanatory diagrams illustrating a method of attaching a hair catcher of a reference drain trap. It is explanatory drawing showing the attachment state of the hair catcher of the reference drain trap.

Hereinafter, embodiments will be described with reference to the drawings. In each of the drawings, similar components are denoted by the same reference numerals, and detailed description will be omitted as appropriate.
FIG. 1 is a perspective view illustrating a drain trap according to the embodiment.
FIG. 2 is a cross-sectional view illustrating a drain trap according to the embodiment.
FIG. 3 is a perspective view illustrating a use state of the drain trap according to the embodiment.
As shown in FIGS. 1 to 3, the drain trap 10 includes a trap body 12 and a hair catcher 14. The hair catcher 14 is detachably attached to the trap body 12. FIG. 3 illustrates a state in which the hair catcher 14 is removed.

  The trap body 12 has a receiving port 20, an inlet port 22, and an outlet port 24. The receiving port 20 is connected to a drain port 4 provided on the bottom surface 3 a of the recess 3 of the washing place 2. The inflow port 22 is connected to the drain port 6 of the bathtub 5. The outlet 24 is connected to the drain pipe 8.

  The trap body 12 causes water flowing from the receiving port 20 and the inflow port 22 to flow out from the outflow port 24. In other words, the trap body 12 causes the inflowing water to flow out to the drain pipe 8 via the outlet 24. In addition, the trap body 12 can shut off a path from the receiving port 20 and the inflow port 22 to the outflow port 24 by sealing water. Thereby, the trap main body 12 suppresses the odor and the insect pest of the drain pipe 8 from going to the bathroom side.

  In this example, the inflow port 22 is connected to the drain port 6 of the bathtub 5 via the connection member 16 and the hose 18. The connection member 16 is a pipe bent in an L shape. At one end of the connection member 16, a connection port 16 a that is directly connected to the drain port 6 is provided. The connection member 16 is connected to the drain port 6 via, for example, a drain plug unit not shown. The other end of the connection member 16 is connected to one end of a hose 18. The other end of the hose 18 is connected to the inlet 22. Thereby, the water discharged from the drain port 6 of the bathtub 5 flows into the inflow port 22 of the trap body 12 via the connecting member 16 and the hose 18.

  The connection member 16 and the hose 18 may be provided integrally with the trap body 12 by bonding, welding, or the like. In this case, the connection port 16a of the connection member 16 may be used as the inflow port 22. The inflow port 22 may be indirectly connected to the drain port 6 of the bathtub 5 via another member such as the connecting member 16 and the hose 18, or may be directly connected to the drain port 6 of the bathtub 5. Good.

  The hair catcher 14 is detachably attached to the receiving port 20. The hair catcher 14 suppresses foreign matter such as hair from entering the trap body 12 from the receiving port 20 without preventing the inflow of water from the receiving port 20 into the trap body 12.

  The hair catcher 14 has a main body 30 and a handle 32. The main body 30 is in the shape of a basket that is recessed downward. The main body 30 has a plurality of openings, allows water to flow into the trap body 12 from each of the openings, and captures foreign matter such as hair in a mesh-like portion around each of the openings.

  The main body 30 fits into the receiving port 20 and at least a part thereof enters the trap main body 12. The shape of the receiving port 20 is substantially circular. Similarly, the shape of the upper end 30a of the main body 30 (the shape of the main body 30 as viewed from above) is substantially circular. In addition, the main body 30 has a flange 30f radially extending outward from the upper end. The outer diameter of the upper end 30a of the main body 30 (the outer diameter of the flange 30f) is, for example, substantially the same as or slightly smaller than the diameter of the receiving port 20. As a result, the main body 30 fits into the receiving port 20.

  The hair catcher 14 is attached to the trap main body 12 such that the upper end 30a of the main body 30 is substantially flush with the receiving port 20. That is, in this example, substantially the entire body 30 enters the trap body 12. The upper end 30a of the main body 30 may be located above or below the receiving port 20. However, it is preferable that the position of the upper end 30 a of the main body 30 be set substantially flush with the reception port 20 or below the reception port 20. This makes it easier for the water flowing from the washing area 2 to flow into the main body 30 of the hair catcher 14 as compared to the case where the water is set above the receiving port 20. For example, it is possible to prevent water containing foreign matter from flowing directly into the trap body 12 from a gap between the hair catcher 14 and the receiving port 20 without passing through the hair catcher 14. Intrusion of foreign matter into the trap body 12 can be further suppressed.

  The handle 32 extends substantially horizontally outward from the upper end 30 a of the main body 30. Thereby, for example, the hair catcher 14 can be easily attached and detached. For example, by gripping the handle portion 32 and operating the body portion 30 upside down, the foreign matter captured by the body portion 30 can be easily thrown away in a trash box or the like. In this example, the hair catcher 14 has a rising portion 31 extending upward from an upper end 30 a of the main body portion 30, and the handle portion 32 extends substantially horizontally outward from the upper end of the rising portion 31. The handle portion 32 may extend directly outward from the upper end 30a of the main body portion 30, or indirectly extend outward from the upper end 30a of the main body portion 30 via the rising portion 31 or the like as described above. You may.

  The trap body 12 has a sealed water storage section 40, a plurality of engagement grooves 41, and an ejection section 42.

  The sealed water storage section 40 has a bottomed cylindrical shape in which the receiving port 20 is provided at the upper part. The hair catcher 14 attached to the receiving port 20 enters the sealed water storage section 40. The sealed water storage section 40 receives the water flowing from the receiving port 20. The sealed water storage section 40 is capable of storing the sealed water therein while causing the inflowing water to flow toward the outlet 24.

  The trap body 12 further has, for example, an adjacent chamber 43 and a communication port 44. The adjacent chamber 43 is provided adjacent to the sealed water storage section 40. The outlet 24 is provided in the adjacent chamber 43. The outlet 24 is provided above the bottom surface of the adjacent chamber 43 in the adjacent chamber 43. The outlet 24 is formed, for example, from the adjacent chamber 43 to the side. As a result, in the adjacent chamber 43, water accumulates in a portion below the outlet 24. That is, in this example, the position of the lower end of the outlet 24 is the highest position MHP of the sealed water.

  The communication port 44 connects the sealed water storage section 40 and the adjacent chamber 43 at an adjacent portion between the sealed water storage section 40 and the adjacent chamber 43. The communication port 44 is provided below the highest position MHP of the sealed water and is submerged in the sealed water. Thereby, the path from the receiving port 20 and the inflow port 22 to the outflow port 24 is blocked by the water sealing. The communication port 44 is provided, for example, at the lower end of the water sealing storage section 40 and the adjacent chamber 43.

  Due to the communication between the water sealing storage part 40 and the adjacent chamber 43 through the communication port 44, water also accumulates in the water sealing storage part 40 in a portion below the highest position MHP. The water that has flowed into the sealed water storage 40 flows out to the outlet 24 through the communication port 44 and the adjacent chamber 43. Thereby, in the water sealing storage part 40, it is possible to store the water sealing therein while causing the inflowing water to flow toward the outlet 24. The configuration for forming the sealed water in the trap body 12 is not limited to the above, and may be any configuration that can store the sealed water in the sealed water storage unit 40 and allow the inflowing water to flow out to the outlet 24. Good.

  The sealed water storage section 40 has a substantially cylindrical inner peripheral surface 40a. The diameter of the inner peripheral surface 40a is substantially the same as the diameter of the receiving port 20. The position of the central axis of the inner peripheral surface 40 a is substantially the same as the center of the receiving port 20. The receiving port 20 is, for example, an open end of a cylindrical sealed water storage section 40. The diameter of the inner peripheral surface 40a does not necessarily have to be the same as the diameter of the receiving port 20. The position of the central axis of the inner peripheral surface 40a does not necessarily have to be the same as the center of the receiving port 20.

  The water sealing storage part 40 has, for example, a base part 50 and a fastening flange 52 detachably attached to an upper part of the base part 50. The base part 50 is a bottomed cylindrical shape. The fastening flange 52 has a cylindrical tubular portion 52a and a flange portion 52b extending outward from the upper end of the tubular portion 52a. The outer diameter of the cylindrical portion 52a is substantially equal to the inner diameter of the upper portion of the base portion 50. The tube part 52a is inserted into the base part 50. In addition, a female screw is provided on the inner peripheral surface of the upper part of the base portion 50. A male screw corresponding to the female screw of the base part 50 is provided on the outer peripheral surface of the lower part of the cylindrical part 52a. The fastening flange 52 is detachably attached to the base portion 50 by screwing a male screw of the cylindrical portion 52a with a female screw of the base portion 50.

  The inner peripheral surface of the cylindrical portion 52a is substantially flush with the inner peripheral surface of the base portion 50 when attached to the base portion 50. In this example, the inner peripheral surface of the water sealing storage section 40 includes the inner peripheral surface of the base portion 50 and the inner peripheral surface of the cylindrical portion 52a. In this example, the receiving port 20 is an open end above the cylindrical portion 52a. In this example, the receiving port 20 is formed in the fastening flange 52.

  The shape of the drain port 4 of the washing place 2 as viewed from above is substantially circular. The drain port 4 is a through hole having a substantially circular cross section. The diameter of the drain port 4 is substantially equal to the outer diameter of the cylindrical portion 52a of the fastening flange 52. In the connection between the drain port 4 and the receiving port 20, the cylindrical portion 52a of the tightening flange 52 is inserted into the drain port 4 from above, and each screw is screwed together to connect the opening end face of the base portion 50 to the flange portion 52b. The peripheral part of the drain port 4 of the floor material of the washing place 2 is sandwiched between them. As a result, the drain port 4 is connected to the receiving port 20, and the water discharged from the drain port 4 flows into the trap body 12 (water sealing storage section 40) from the receiving port 20.

  The connection method between the drain port 4 and the receiving port 20 is not limited to the above. The sealed water storage section 40 does not necessarily have to have the fastening flange 52. In this case, the opening end on the upper part of the base portion 50 may be the receiving port 20.

  The plurality of engagement grooves 41 are provided at predetermined intervals in the circumferential direction on the inner peripheral surface 40a of the water sealing storage section 40 (see FIG. 3). In this example, each engagement groove 41 is provided in the fastening flange 52. Each engagement groove 41 extends downward from the upper end at the upper part of the water sealing storage part 40 (the fastening flange 52).

  Each engagement groove 41 is used for attaching the hair catcher 14. Each engagement groove 41 holds the hair catcher 14 such that the bottom of the hair catcher 14 is located above the highest position MHP of the sealing water. The dimensions of the water seal storage part 40, the respective engagement grooves 41, and the hair catcher 14 are adjusted such that the bottom of the hair catcher 14 attached to the receiving port 20 is located above the highest position MHP of the water seal. You.

  In this example, four engagement grooves 41 are provided every 90 °. The number of the engagement grooves 41 is not limited to four, and may be any number to which the hair catcher 14 can be attached. Further, the intervals between the engagement grooves 41 do not necessarily have to be constant. In the specification of the present application, the “predetermined interval” includes not only the same interval but also a case where the interval varies.

  The spouting section 42 forms a swirling flow that swirls along the inner peripheral surface 40 a of the sealed water storage section 40 by ejecting water flowing from the inflow port 22 into the sealed water storage section 40, and forms a swirled flow. The water level in the part 40 is temporarily raised, and the hair catcher 14 is immersed in the swirling flow.

FIG. 4 is an explanatory diagram illustrating the flow of water when water flows in from the inflow port.
As illustrated in FIG. 4, the ejection unit 42 ejects water into the sealed water storage unit 40, for example, in a tangential direction of the cylindrical inner peripheral surface 40a. Thereby, the water is swirled along the inner peripheral surface 40a, and a swirling flow is formed in the sealed water storage section 40. In this example, the swirling direction of the swirling flow is a clockwise direction. The turning direction may be a counterclockwise direction.

  A part of the water that has been swirled flows from the sealed water storage section 40 through the communication port 44 to the adjacent chamber 43, and flows out of the outlet port 24 to the drain pipe 8. At this time, the amount of water spouting from the spouting section 42 is made slightly larger than the amount of water flowing out from the communication port 44. As a result, the water level in the sealed water storage section 40 temporarily rises with the ejection of water from the ejection section 42, and the hair catcher 14 is immersed in the swirling flow.

  When the hair catcher 14 is immersed in the swirling flow, the captured foreign matter is agitated in the main body 30 of the hair catcher 14. Thereby, for example, foreign substances such as hair can be collected into a lump, and the captured foreign substances can be easily discarded. In addition, for example, the surface of the hair catcher 14 is purified by a swirling flow, so that generation of slime on the surface of the hair catcher 14 can be suppressed.

  As shown in FIG. 4, the trap body 12 further has, for example, a bypass 45. The bypass 45 connects, for example, the inflow port 22 to the adjacent chamber 43, and sends a part of the water flowing in from the inflow port 22 to the adjacent chamber 43 without passing through the sealed water storage section 40. For example, by adjusting the amount of water ejected to the sealed water storage section 40 and the amount of water flowing to the bypass passage 45, the water level in the sealed water storage section 40 when water is ejected from the ejection section 42 is adjusted. Can be adjusted. At least a part of the bypass 45 is provided below the highest position MHP of the sealed water. Thus, the water is filled in the bypass 45, and the path from the inlet 22 to the outlet 24 is cut off.

FIG. 5 is a perspective view illustrating the hair catcher and the fastening flange according to the embodiment.
As shown in FIG. 5, the hair catcher 14 further has a plurality of engagement protrusions 34. Each engagement projection 34 is provided on the outer peripheral surface of the main body 30. Each engagement protrusion 34 is provided at a predetermined interval in the circumferential direction of the outer peripheral surface of the main body 30. The hair catcher 14 has, for example, four engagement protrusions 34 provided at intervals of 90 °.

  Each engagement protrusion 34 is provided at least on the right end and the left end of the main body 30 based on the position of the handle 32. The right end portion of the main body 30 is a portion facing right when the direction in which the handle portion 32 extends is set to the rear and the opposite direction is set to the front, and the left end is the opposite direction. Further, each engagement protrusion 34 is further provided at a front end and a rear end of the main body 30. In other words, the hair catcher 14 includes, for example, an engagement protrusion 34R provided at the right end of the main body 30, an engagement protrusion 34L provided at the left end of the main body 30, and a front end of the main body 30. It has an engagement protrusion 34F provided and an engagement protrusion 34B provided at the rear end of the main body 30.

  Each engagement protrusion 34 engages with one of the engagement grooves 41 provided on the inner peripheral surface 40 a of the water sealing storage section 40. Further, each engagement protrusion 34 allows the main body 30 to enter the water-sealing and storing portion 40 in a predetermined posture that can engage with each engagement groove 41, and in a posture different from the predetermined posture. In addition, the main body 30 is restricted from entering the sealed water storage 40.

  The posture in which the engagement with each of the engagement grooves 41 is possible is, for example, a posture in which the upper end 30a of the main body 30 is substantially horizontal and each of the engagement protrusions 34 is arranged above each of the engagement grooves 41. The hair catcher 14 is lowered substantially vertically from the posture in which the main body 30 is turned. As a result, each of the engagement projections 34 enters each of the engagement grooves 41 and engages with each other, and the main body portion 30 enters into the water sealing storage portion 40 and fits into the receiving port 20.

  When the positions of the respective engagement protrusions 34 and the respective engagement grooves 41 do not match, or when the main body 30 is inclined, the respective engagement protrusions 34 contact the peripheral edge of the receiving port 20. This restricts the main body 30 from entering the sealed water storage section 40.

  Each engagement protrusion 34 is formed, for example, in a vertically long shape that is long in the vertical direction. The vertical length of each engagement protrusion 34 is longer than the circumferential width of each engagement protrusion 34. The amount of protrusion of each engagement protrusion 34 may be any length that can abut the periphery of the receiving port 20 in a state where the engagement protrusion 34 is not aligned with each engagement groove 41. For example, the diameter of the circumscribed circle of each engagement protrusion 34 is made larger than the diameter of the receiving port 20 when viewed from above. Accordingly, each engagement protrusion 34 can be brought into contact with the peripheral edge of the receiving port 20 in a state where the position is not aligned with each engagement groove 41. Further, it is preferable that the amount of protrusion of each engagement protrusion 34 is not excessively large. It is preferable that the amount of protrusion of each engagement protrusion 34 from the outer peripheral surface of the main body 30 is, for example, about 3 mm or more and 10 mm or less.

  The shape of each engagement protrusion 34 can be engaged with each engagement groove 41, and can prevent the main body 30 from entering the water sealing storage section 40 when the position of each engagement groove 41 is not matched. Any shape may be used. Further, the number of the engagement protrusions 34 is not limited to four, and may be three or less, or five or more. The number of each engagement protrusion 34 may be smaller than the number of each engagement groove 41. The number and arrangement of the engagement protrusions 34 may be set as appropriate so as to enable engagement with any of the engagement grooves 41.

  Each engagement groove 41 has a cutout portion 60 (a regulating portion). The notch 60 extends from the lower end 41 a of the engagement groove 41 in the circumferential direction of the inner peripheral surface and engages with the engagement protrusion 34. In other words, each engagement groove 41 is bent in a substantially L-shape. The direction in which the notch 60 extends is, for example, the swirling direction of the swirling flow. The notch 60 restricts the vertical movement of each of the engagement protrusions 34 in a state where the notch 60 is engaged with any one of the engagement protrusions 34. In other words, the notch 60 restricts the engagement protrusion 34 from coming off upward. In addition, the cutout portion 60 regulates the rotation of each of the engagement protrusions 34 in the turning direction in a state of being engaged with any of the engagement protrusions 34. That is, each engagement groove 41 regulates the vertical movement of the main body 30 of the hair catcher 14 and the rotation of the main body 30 in the turning direction by engagement with each engagement protrusion 34.

  When attaching the hair catcher 14, the handle 32 is pinched to operate the hair catcher 14. First, the upper end 30a of the main body 30 is made substantially horizontal, and the positions of the respective engaging projections 34 and the respective engaging grooves 41 are aligned. Thereafter, the hair catcher 14 is lowered substantially vertically, and each engagement protrusion 34 is inserted into each engagement groove 41. Then, the main body 30 is further rotated in the turning direction so that each of the engagement protrusions 34 enters the notch 60, and each of the engagement protrusions 34 is engaged with the notch 60. Thus, the attachment of the hair catcher 14 is completed.

  When removing the hair catcher 14, the main body 30 is rotated in the direction opposite to the turning direction to release the engagement between each engagement protrusion 34 and the notch 60. Thereafter, the main body 30 is raised substantially vertically, and the respective engagement protrusions 34 are pulled out from the respective engagement grooves 41. Thereby, the hair catcher 14 can be removed from the trap body 12.

FIG. 6 is a reference diagram illustrating an attached state of the hair catcher.
FIG. 6 shows the attached state of the reference hair catcher HC in the reference drain trap DT. In the reference drain trap DT, opposite to the drain trap 10 according to the present embodiment, an engagement protrusion EP is provided on the inner peripheral surface side of the trap body MB, and an engagement groove is provided on the outer peripheral surface side of the hair catcher HC. (See FIGS. 8 to 10). In the reference drain trap DT, for example, the hair catcher HC is attached by rotating the hair catcher HC in the circumferential direction to engage the engagement protrusion EP with the engagement groove.

  The drain port 4 of the washing place 2 is provided on the bottom surface 3a of the concave portion 3 in order to suppress overflow of the drain and to accommodate a cover that covers the drain port 4. The size of the bottom surface 3a of the concave portion 3 is slightly larger than the size of the receiving opening OP, and the upright surface 3b of the concave portion 3 is arranged close to the receiving opening OP.

  Accordingly, in order to prevent the hand from hitting the corner CNR between the floor surface 2a of the washing room 2 and the rising surface 3b of the concave portion 3, as shown in FIG. The handle HCh is gripped, and the main body of the hair catcher HC is inserted obliquely into the receiving opening OP. When the hair catcher HC is inserted obliquely with respect to the receiving opening OP, the outer diameter of the upper end of the main body of the hair catcher HC is substantially the same as or slightly smaller than the diameter of the receiving opening OP. There is a case where the hair catcher HC passes through the gap between the projections EP and is immersed in the sealing water in the trap body MB.

  Water sealing in the trap body MB may be in an unsanitary state due to mixing of soap scum and the like. For this reason, if the hair catcher HC is immersed in the sealing water, there is a risk that the user will be stressed.

  In addition, if the hair catcher HC is larger than the receiving opening OP, it is possible to suppress the hair catcher HC from being immersed in the sealing water. The functionality of the catcher HC will be reduced.

  On the other hand, in the drain trap 10 according to the present embodiment, even if the hair catcher 14 is affected by the swirling flow, the plurality of engaging projections 34 of the hair catcher 14 The plurality of engagement grooves 41 provided in the first and second engagement portions can suppress the rotation of the hair catcher 14 and prevent the hair catcher 14 from moving up and down under the influence of the swirling flow by the notch portion 60. Can be. Further, when the hair catcher 14 is attached, the main body 30 enters the water sealing storage section 40 only in a predetermined posture where the engagement projections 34 and the engagement grooves 41 can be engaged. Can be suppressed from being immersed in the sealing water. For example, the height from the highest position MHP of the sealed water to the receiving port 20 is set longer than the radius of the main body 30 of the hair catcher 14. Thereby, the hair catcher 14 can be further suppressed from being immersed in the sealing water. Therefore, it is possible to suppress the hair catcher 14 from being immersed in the sealing water without lowering the functionality of the hair catcher 14. In addition, since each engagement groove 41 is formed to extend downward from the upper end in the upper part of the water sealing storage part 40, the upper end of each engagement groove 41 is visually recognized by the user when the hair catcher 14 is attached. This makes it easier to engage each engagement protrusion 34 with each engagement groove 41 in a predetermined posture.

  Further, in the drain trap 10, it is not necessary to separately provide a member for regulation, and the notch portion 60 can regulate the vertical movement of the hair catcher 14 with a simple structure. In addition, the engagement protrusion 34 can be engaged with the notch 60 by a simple operation of rotating the hair catcher 14.

  Further, in the drain trap 10, since each of the engagement projections 34 is formed in a vertically long shape, the attachment can be performed only when the hair catcher 14 is in a substantially horizontal posture. Therefore, it is possible to prevent the hair catcher 14 from being obliquely inserted into the reception port 20. The hair catcher 14 can be more reliably prevented from being immersed in the sealing water.

  Further, in the drain trap 10, each engagement protrusion 34 is provided at the right end and the left end of the main body 30. Accordingly, when the user tries to attach the hair catcher 14 in an inappropriate posture with the handle portion 32 being pinched, each engagement protrusion 34 can be easily brought into contact with the receiving port 20. For example, it is possible to more reliably suppress the hair catcher 14 from being immersed in the sealing water without requiring a large number of engaging projections 34 or an excessively large engaging projection 34.

  Further, in the drain trap 10, each engagement protrusion 34 is further provided on the front end and the rear end of the main body 30. This makes it possible to more reliably prevent the hair catcher 14 from being immersed in the sealing water when the user tries to attach the hair catcher 14 in an inappropriate posture with the handle portion 32 being pinched. .

  In the drain trap 10, the main body 30 of the hair catcher 14 fits in the receiving port 20. Compared with the case where the main body 30 is larger than the receiving port 20, the main body 30 is compact, and the operability when removing and shaking can be improved. Further, the cleaning area is reduced, and the cleanability of the hair catcher 14 can be improved.

  In the drain trap 10, the position of the upper end 30 a of the main body 30 is set to be substantially flush with the receiving port 20 or lower than the receiving port 20. This makes it easier for the water flowing from the washing area 2 to flow into the main body 30 of the hair catcher 14 as compared to the case where the water is set above the receiving port 20. Intrusion of foreign matter into the trap body 12 can be further suppressed.

  In the drain trap 10, the handle portion 32 extends substantially horizontally outward from the upper end 30a of the main body portion 30. Thereby, the operability of the hair catcher 14 can be further improved. For example, the foreign matter captured by the main body 30 can be easily thrown away in a trash box or the like.

FIGS. 7A to 7C are explanatory views illustrating a modification of the engagement groove according to the embodiment.
As shown in FIGS. 7A to 7C, in this example, each engagement groove 41 is a straight line extending in the up-down direction. Each engagement groove 41 has a narrowed portion 62 (restriction portion) having a partly reduced width. The height of the narrowed portion 62 from the lower end 41a is set slightly higher than the length of the engagement protrusion 34 in the vertical direction. The engagement groove 41 allows the engagement protrusion 34 to enter between the lower end 41 a and the throttle portion 62.

  The width WC1 of the portion other than the throttle portion 62 of the engagement groove 41 is slightly wider than the width WP of the engagement protrusion 34. On the other hand, the width WC2 of the throttle portion 62 is the same as or slightly smaller than the width WP of the engagement protrusion 34. Accordingly, when the engagement protrusion 34 is inserted into a portion between the lower end 41a and the throttle portion 62, the downward movement of the engagement protrusion 34 is restricted by the contact with the lower end 41a, and The upward movement of the engagement protrusion 34 is regulated by the portion 62. For the hair catcher 14 and the fastening flange 52, for example, a resin material is used. Accordingly, when the engagement protrusion 34 passes through the portion of the throttle portion 62, the engagement protrusion 34 and the engagement groove 41 are elastically deformed, so that the engagement protrusion 34 can be easily passed.

  As described above, the restricting portion that restricts the vertical movement of the engagement protrusion 34 may be the cutout portion 60 or the throttle portion 62. The restricting portion is not limited to these, and may have any configuration that can restrict the vertical movement of the engagement protrusion 34. When the restricting portion is the cutout portion 60 or the squeezed portion 62, there is no need to separately provide a restricting member, and the vertical movement of the hair catcher 14 can be restricted with a simple structure.

The embodiment of the invention has been described. However, the invention is not limited to these descriptions. With respect to the above-described embodiments, those to which a person skilled in the art has appropriately changed the design are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, size, material, arrangement, and the like of each element included in the drain trap 10 and the like are not limited to those illustrated, and can be appropriately changed.
In addition, each element included in each of the embodiments described above can be combined as far as technically possible, and a combination of these elements is also included in the scope of the present invention as long as it includes the features of the present invention.

  2 Washing place, 3 recess, 3a bottom, 4 drain, 5 bathtub, 6 drain, 8 drain, 10 drain trap, 12 trap body, 14 hair catcher, 16 connecting member, 18 hose, 20 inlet, 22 inlet , 24 outlet, 30 body part, 32 handle part, 34 engaging projection, 40 sealed water storage part, 41 engaging groove, 42 jetting part, 43 adjacent chamber, 44 communication port, 45 bypass path, 50 base part, 52 Tightening flange, 60 notch, 62 drawing, CNR corner, MHP maximum position

Claims (6)

A receiving port connected to a drain port provided on the bottom surface of the recess of the washing area, an inlet connected to a drain port of the bathtub, and an outlet connected to a drain pipe, the receiving port and the A trap body that allows the water flowing from the inflow port to flow out of the outflow port, and seals off a path from the receiving port and the inflow port to the outflow port by sealing water.
A hair catcher that is detachably attached to the reception port and suppresses entry of foreign matter from the reception port into the trap body;
With
The trap body is
A sealed-water storing section, which has a bottomed cylindrical shape provided with the receiving port at an upper portion and allows inflowing water to flow toward the outflow port while allowing the sealed water to be stored therein,
By injecting the water that has flowed in from the inflow port into the sealed water storage part, a swirling flow is formed to swirl along the inner peripheral surface of the sealed water storage part, and the water level in the sealed water storage part is temporarily reduced. And an ejection part for immersing the hair catcher in the swirling flow,
A plurality of engagement grooves are provided at predetermined intervals in the circumferential direction on the inner peripheral surface of the water sealing storage portion, and extend downward from an upper end at an upper portion of the water sealing storage portion,
Has,
The hair catcher,
A main body portion that is in a cage shape that is recessed downward and that fits into the reception port and at least a part thereof enters the water sealing storage portion;
A handle portion extending outward from the upper end of the main body portion,
A plurality of engagement protrusions provided on the outer peripheral surface of the main body at predetermined intervals in the circumferential direction, project outward, and engage with any of the plurality of engagement grooves,
Has,
The plurality of engagement grooves, in a state engaged with any of the plurality of engagement protrusions, has a regulating portion that regulates the vertical movement of the plurality of engagement protrusions,
The plurality of engagement projections allow the main body to enter the water-sealing storage section in a predetermined posture capable of engaging with the plurality of engagement grooves, and in a posture different from the predetermined posture. And a drain trap for restricting the main body from entering the sealed water storage section.   2. The drain trap according to claim 1, wherein the restricting portion is a notch extending from a lower end of the engaging groove in a circumferential direction of the inner peripheral surface and engaging with the engaging protrusion. 3.   The drain trap according to claim 1, wherein the restricting portion is a narrowed portion in which a part of the engaging groove has a reduced width.   The drainage trap according to any one of claims 1 to 3, wherein the plurality of engagement protrusions are formed in a vertically long shape in a vertical direction.   The drainage trap according to any one of claims 1 to 4, wherein the plurality of engagement protrusions are provided at least on a right end and a left end of the main body with reference to a position of the handle. .   The drainage trap according to claim 5, wherein the plurality of engagement protrusions are further provided at a front end and a rear end of the main body.

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