JP2015124520A - Drain plug device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain plug device capable of providing excellent sanitation and cleanability, by easily removing refuse, even when the refuse sticks, by effectively restraining sticking of the refuse.SOLUTION: A drain plug device 1 comprises a support cylinder 4 for supporting an operation shaft 5 for vertically moving a plug cover 7, and the support cylinder 4 is fixed to a draining pipe 3. The pipe 3 comprises an inclined part inclining in the vertical direction, and the support cylinder 4 comprises a projection cylinder part 41 projecting upward from the inclined part, and comprises a sticking preventive part 9 having an upstream side part 41A positioned on the upstream side in the flow direction of drain water in the inclined part among the projection cylinder part 41, an upper surface part for connecting a part opposed to the upstream side part 41A among the pipe 3, a first side surface part of extending downward from the whole one edge area in the width direction of the upper surface part and a second side surface part of extending downward from the whole other edge area in the width direction of the upper surface part.

Description

  This article relates to a drain plug device provided at a drain outlet of a tank body.

  Conventionally, as a drain plug device, a plug lid capable of opening and closing a drain port of a tank body (for example, a wash bowl or a bathtub), a shaft member that moves the plug lid up and down along with its own vertical movement, and a tank body One having a support member that is directly or indirectly attached and supports the shaft member so as to be movable up and down is known.

  As the support member, a cylindrical support tube that supports the shaft member on the inner periphery, and a plurality of ribs that extend from the outer periphery of the support tube toward the outer periphery and are intermittently formed along the circumferential direction. (For example, refer patent document 1 etc.). The rib is provided to hold the support cylinder, and is configured to drain water through a gap between adjacent ribs when discharging water from the tank body.

  However, in the method described in the above-mentioned patent document, due to the presence of the ribs, it is very difficult to clean a portion located on the back side of the ribs among the pipes and the like that form the flow path for drainage. Inferior.

  In view of this, a technique has been proposed in which a support cylinder that supports the shaft member is provided integrally with a pipe that is attached to a tank body (see, for example, Patent Document 2). According to the technique, since a rib for holding the support cylinder is not necessary, a part such as a pipe located on the back side of the drain port can be easily cleaned.

JP 2013-194366 A JP 2003-253719 A

  However, in the above technique, an inclined portion where the drainage flows down is provided on the inner surface of the pipe, and at least the upper portion of the support cylinder is erected on the inclined portion and disposed inside the pipe (in the following, Is a configuration in which a portion of the support cylinder that is disposed inside the pipe is referred to as a “projection cylinder”. Therefore, when drainage flows down along the inclined portion, hair, dust, or the like is present at the boundary portion between the portion (upstream portion) and the inclined portion of the protruding cylindrical portion located on the upstream side of the inclined portion in the flow direction of the drainage. There is a possibility that it easily adheres (is easily tangled) and cannot sufficiently improve hygiene.

  In addition, since the gap between the upstream portion of the protruding cylinder and the pipe is very narrow on the lower side, a cleaning tool such as a brush reaches the boundary between the upstream portion of the protruding cylinder and the inclined portion. Hateful. Therefore, it is difficult to remove the dirt adhering to the boundary portion between the upstream portion of the protruding cylindrical portion and the inclined portion, and there is a possibility that the cleaning property cannot be sufficiently improved.

  The present invention has been made in view of the above circumstances, and its purpose is to effectively suppress the adhesion of hair, dust, etc., and to easily attach the hair, etc. even if it adheres to the hair. Accordingly, it is an object of the present invention to provide a drain plug device that can be easily removed and can obtain excellent hygiene and cleaning properties.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect specific to the means to respond | corresponds as needed is added.

Means 1. A stopper lid provided at the drain of the tank body;
A cylindrical drainage port member attached to the tank body;
A cylindrical pipe attached to the drainage port member and having a drainage flow path through which drainage from the tank body flows.
An operating shaft for moving the stopper lid up and down by its own vertical movement;
A drain plug device comprising a cylindrical support tube that supports the operating shaft in a state in which the operating shaft can move up and down on its inner periphery,
An inclined portion that is inclined with respect to the vertical direction is provided on the inner surface of the pipe,
The support cylinder is
Fixed to the pipe,
Projecting upward from the inclined portion, and having a projecting cylindrical portion disposed in the internal space of the pipe,
When the portion located on the upstream side in the flow direction of the drainage in the inclined portion of the protruding cylindrical portion is the upstream portion,
Among the pipes, when viewed in plan, a part facing the upstream part along the flow direction, and an upper surface part connecting the upstream part,
A first side surface portion that extends downward from the entire region of one edge in the width direction of the upper surface portion, and is connected to the pipe and the upstream portion in a state where no gap exists between the pipe and the upstream portion; ,
A second side surface portion extending downward from the entire widthwise other end edge of the upper surface portion and connected to the piping and the upstream portion in a state where no gap exists between the piping and the upstream portion. A drain plug device comprising an adhesion preventing portion having

  According to the said means 1, it is comprised so that a support cylinder may be fixed to piping attached to a tank body. Therefore, a rib or the like for holding the support cylinder is not required, and a part located on the back side of the drainage port such as a pipe can be easily cleaned.

  Furthermore, according to the above means 1, in the technique described in Patent Document 2 (Japanese Patent Application Laid-Open No. 2003-253719), the adhesion prevention is performed by filling the space between the upstream portion of the protruding cylinder portion and the inclined portion. And a portion corresponding to the boundary portion between the upstream portion and the inclined portion is configured not to exist inside the pipe. Accordingly, it is possible to more reliably prevent the hair, dust, and the like from adhering to the protruding cylinder portion, and good hygiene can be obtained.

  Moreover, it can prevent more reliably that the clearance gap between the upstream site | part of a protrusion cylinder part and piping will become too narrow by presence of an adhesion prevention part. Thereby, the inside of piping can be cleaned more easily and the outstanding cleaning property can be acquired.

  Furthermore, since the upstream site | part of the protrusion cylinder part is being fixed to piping via the adhesion prevention part, the deformation resistance of the protrusion cylinder part with respect to external force can be improved. For this reason, for example, heavy objects such as buckets containing water are placed on the lid, etc., the lid is pushed hard by hand, or it is stepped on (especially used in a bathtub). Even when a force is applied to the projecting cylinder portion, such as when it is applied, it is possible to more reliably prevent the projecting cylinder portion from being inclined (deformed).

Mean 2. One end of an overflow pipe extending from the overflow port of the tank body is connected to the pipe,
The drain plug device according to claim 1, wherein the opening at one end of the overflow pipe is provided at a position overlapping with at least a part of the protruding cylindrical portion in the vertical direction.

  Although it is possible to prevent adhesion of hair etc. by providing an adhesion preventing part, the presence of the adhesion preventing part reduces the water flow area especially at the position where the protruding cylinder part exists in the pipe, and consequently There is a risk of reducing drainage capacity.

  In this regard, according to the means 2, the one end of the overflow pipe is connected to the pipe on the side of the protruding cylinder. That is, one end part of the overflow pipe is connected to a part of the pipe corresponding to a part where the reduction of the water passage area due to the presence of the adhesion preventing part is particularly concerned. For this reason, when draining from the drain outlet side, not only the internal space of the pipe but also the internal space of one end of the overflow pipe can function as a drainage flow path, ensuring a sufficiently large water flow area. be able to. As a result, a decrease in drainage capacity can be prevented more reliably.

Means 3. The pipe has a locking portion protruding radially inward,
The drain port member has a recessed locked portion that can be locked by the locking portion,
The piping is attached to the drain port member by locking the locking portion with respect to the locked portion, and
The drain plug device according to means 2, characterized in that the relative position along the circumferential direction of the pipe with respect to the drain port member is adjustable.

  According to the means 3, it is possible to easily attach the pipe to the drain port member, and to improve the mounting workability.

  Further, according to the above means 3, the overflow pipe is arranged at an appropriate position, for example, by adjusting the relative position along the circumferential direction of the pipe with respect to the drain port member so that the overflow pipe extends toward the overflow port side. Can be easily arranged. Accordingly, handling of the overflow pipe is facilitated, damage to the overflow pipe can be prevented, and mounting workability can be further improved.

Means 4. An interlocking shaft that is arranged in series with the working shaft above the working shaft and that can be moved up and down by the vertical movement of the working shaft, and a cylinder in which at least one of the working shafts is inserted into the inner periphery And
Provided on the outer periphery of the cylindrical portion, and the outer peripheral surface of the cylindrical portion is capable of contacting at least one of the tank body and the member attached to the tank body, and includes a collecting section having a water passage hole. And
The tubular portion includes a hair catcher structure disposed above the protruding tubular portion,
The cylindrical portion has a recess at its lower end that can be inserted through the upper end of the protruding cylinder.
The drain plug device according to any one of means 1 to 3, wherein an upper end portion of the protruding cylinder portion is inserted into the recess.

  According to the above means 4, the hair catcher is provided at a position where the collecting portion capable of contacting the tank body and the like and the concave portion through which the protruding cylinder portion is inserted, that is, at least two positions spaced apart in the vertical direction. The axial deviation of the structure can be suppressed. As a result, it is possible to effectively suppress the occurrence of tilting of the hair catcher structure (cylindrical part), and more reliably prevent the normal operation of the plug lid (opening and closing of the drain port) from occurring. it can.

  Moreover, according to the said means 4, it becomes unnecessary to provide the support arm part described below in a hair catcher structure. By not providing the support arm portion, it is possible to simplify the hair catcher structure and to reduce the manufacturing cost. It is also possible to increase the water flow area.

Means 5. An interlocking shaft that is arranged in series with the working shaft above the working shaft and that can be moved up and down by the vertical movement of the working shaft, and a cylindrical portion into which at least one of the working shafts is inserted into the inner periphery When,
The outer peripheral surface of the cylindrical portion is provided on the outer peripheral surface of the tank body and the tank and the member attached to the tank body can be in contact with at least one of the collectors,
Projecting radially outward from the outer periphery of the cylindrical portion below the collecting portion, and provided intermittently along the circumferential direction, at least of the tank body and the member attached to the tank body A support arm that can be directly or indirectly contacted with one side,
The tubular portion includes a hair catcher structure disposed above the protruding tubular portion,
5. The means according to claim 1, further comprising positioning means for restricting relative rotation of the cylindrical portion with respect to the protruding cylindrical portion in a state where the support arm portion is disposed above the upper surface portion. Drain plug device.

  In addition, as the “positioning means”, it is provided in a notch-like notch provided at the upper end of the projecting cylinder, and at the lower end of the cylinder, and can be disposed in the notch, and It can be configured by a convex portion designed so that the support arm portion is arranged above the upper surface portion when arranged in the notch portion. In addition, a protruding portion is provided at the upper end of the protruding cylindrical portion, a notch is provided at the lower end of the cylindrical portion, and when the protruding portion is disposed in the notched portion, the support arm portion is located above the upper surface portion. The positioning means may be realized by being arranged.

  Furthermore, “the supporting arm portion that can directly or indirectly contact at least one of the tank body and the member attached to the tank body” means that the supporting arm portion can directly contact the tank body or the like. For example, when a predetermined member (for example, an annular ring member that connects the outer peripheral ends of the support arm portions) is provided at the outer peripheral end of the support arm portion, the predetermined member is the tank body. This includes the case where contact is possible.

  According to the above means 5, the axial displacement of the hair catcher structure at the position where the collecting part and the supporting arm part that can contact the tank body or the like are provided, that is, at least two positions separated in the vertical direction. Can be suppressed. Therefore, it is possible to effectively suppress the occurrence of inclination in the hair catcher structure (cylindrical portion), and to more effectively prevent the normal operation of the plug lid (opening / closing of the drain port) from occurring. .

  Further, since the support arm portion is disposed above the upper surface portion by the positioning means (the upper surface portion and the support arm portion overlap each other), it is possible to effectively suppress the reduction of the water flow area due to the presence of the support arm portion. it can. Thereby, a favorable drainage capacity can be ensured more reliably.

  Means 6. The drain plug device according to any one of means 1 to 5, wherein the upper surface portion is inclined downward from the center in the width direction toward the both side surface portions.

  According to the above means 6, the hair, dust and the like riding on the upper surface part are easily flowed to the first side surface part and the second side surface part side by the drainage. Therefore, it is possible to more reliably prevent hair, dust, and the like from adhering to the upper surface portion, and to further improve hygiene.

Mean 7 The support tube protrudes downward from the pipe and has a cylindrical downward tube portion disposed outside the pipe.
A bottom portion having an insertion hole penetrating in the vertical direction, and a cylindrical portion standing on the outer periphery of the bottom portion, and a mounted portion to which the cylindrical portion is attached to the outer periphery of the downward cylindrical portion; ,
A cylindrical outer skin portion that is disposed so as to be capable of relative movement on the inner periphery of the operation member and that transmits a displacement of a predetermined operation member to the operating shaft, and extends downward through the insertion hole;
A cylindrical bush portion made of an elastically deformable material is provided below the operating shaft in a state of being in contact with both between the inner periphery of the downward tube portion and the outer periphery of the outer skin portion. The bush portion has a cylindrical bending suppression portion that extends downward from the bottom surface portion through the insertion hole, and the outer skin portion is disposed on the inner periphery of the bending suppression portion. The drain plug device according to any one of 1 to 6.

  By pulling the outer skin part at the time of attachment, an external force may be applied to a part of the outer skin part that extends downward through the insertion hole in a direction that intersects the extending direction of the part. When such an external force is applied, the outer skin part bends with an extremely small radius of curvature, causing damage to the transmission member disposed on the inner periphery of the outer skin part, or hindering relative movement of the transmission member relative to the outer skin part. May occur.

  In this regard, according to the means 7, the outer skin portion extending downward through the insertion hole is configured to be disposed on the inner periphery of the elastically deformable bending suppressing portion. Therefore, when an external force is applied to the outer skin portion, it is possible to prevent the outer skin portion from being bent with an excessively small radius of curvature because the bending suppression portion becomes an obstacle. Moreover, since the bending suppression part which deform | transformed with the application of the external force with respect to an outer skin part tends to return to the original shape, the situation where the outer skin part will be maintained in the state bent excessively can be prevented more reliably. As a result, the transmission member can be prevented from being damaged, and the transmission member can be smoothly moved relative to the outer skin portion (that is, the displacement of the operation member can be more reliably transmitted to the operating shaft). .

  Further, according to the means 7, the bush portion can seal the space between the downward tube portion and the outer skin portion in a watertight manner, and can prevent water leakage to the outside of the pipe. In addition, if the outer skin part is bent excessively, there is a possibility that a gap is generated between the outer skin part and the bush part. However, according to the means 7, the presence of the bending suppression part causes an excessive amount of the outer skin part. Since the bending can be prevented, the generation of the gap can be suppressed, and as a result, the sealing performance can be further improved. In other words, the bend suppressing portion can not only prevent the transmission member from being damaged, but also improve the sealing performance.

It is sectional drawing which shows the structure of a drain plug device. It is sectional drawing which shows the wash bowl etc. to which the drain plug device was attached. It is a partially broken perspective view which shows the structure of a drain plug device. It is an expanded sectional view which shows the attachment aspect of piping with respect to a drain port member. It is a partial enlarged plan view which shows an adhesion prevention part, an inclination part, etc. It is the JJ sectional view taken on the line of FIG. It is a partial expanded sectional view which shows the structure of a positioning means. (A) is a partial expanded sectional view which shows the convex part provided in the cylindrical part, (b) is a partial enlarged plan view which shows the notch part provided in the protrusion cylinder part. It is a partial expanded sectional view which shows another example of a positioning means. It is a partial expanded sectional view which shows the hair catcher structure in another embodiment. It is a figure which shows the adhesion prevention part in another embodiment, (a) is a partial enlarged plan view, (b) is KK sectional view taken on the line of (a).

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIG. 1, the drain plug device 1 is attached to a wash bowl 100 as a tank body. First, prior to the description of the drain plug device 1, the wash ball 100 and the mounting member 110 for mounting the drain plug device 1 to the wash ball 100 will be described.

  The wash bowl 100 has a drain outlet 102 in the bottom wall portion 101, and water in the wash bowl 100 is discharged through the drain outlet 102. In the present embodiment, the bottom wall portion 101 is provided with a cylindrical drooping portion 103 that extends downward and in which the drain port 102 is formed on the inner periphery. An annular recess 103 </ b> A extending along the circumferential direction is formed on the outer periphery of the drooping portion 103.

  Further, as shown in FIG. 2, an overflow port 105 for preventing water from overflowing from the wash bowl 100 is provided in the side wall portion 104 erected on the outer periphery of the bottom wall portion 101. Also, a tubular joint portion 106 that is bent downward is connected to the overflow port 105, and a tubular tube body that is formed of an elastically deformable resin or the like at a downwardly extending portion of the joint portion 106. 107 is connected. The drainage from the overflow port 105 flows to the drain plug device 1 side through the joint portion 106 and the inner periphery of the pipe body 107.

  Returning to FIG. 1, the mounting member 110 is made of resin or the like, and has a cylindrical outer peripheral portion 111 having an internal thread portion 111 </ b> A formed on the inner periphery, and an annular shape extending radially inward from the upper end of the outer peripheral portion 111. And an overhang portion 112. Then, the projecting portion 112 is placed on the placement portion 113 attached to the hollow portion 103 </ b> A by forming an annular shape (a so-called C-shape) in which a part along the circumferential direction is opened. The mounting member 110 is mounted on the outer periphery of the hanging portion 103 so as to be rotatable relative to the wash ball 100.

  Next, the configuration of the drain plug device 1 will be described. The drain plug device 1 includes a drain port member 2, a pipe 3, a support cylinder 4, an operating shaft 5, a hair catcher component 6, a plug lid 7, and an adhesion prevention unit 9.

  The drain port member 2 is formed of resin or the like, and has a cylindrical main body 21, a hook-like part 22 that extends radially outward from the outer periphery of the main body part 21, and a cylinder that extends upward from the outer periphery of the hook-like part 22. And a standing upright portion 23. A male screw portion 23A that can be screwed to the female screw portion 111A is provided on the outer periphery of the standing portion 23. The male screw portion 23A is screwed to the female screw portion 111A, so that the drain port member 2 is attached to the outer screw portion 111A. It is attached to the wash bowl 100 via the member 110.

  Moreover, in the state which attached the drain outlet member 2 to the wash bowl 100, the upper end part of the main-body part 21 is contacting the lower end part of the drooping part 103, and the drooping part 103 and the main-body part 21 are located in a line in series It has become. Therefore, the drainage from the drainage port 102 flows down into the internal space of the main body 21.

  Further, an annular packing portion 114 formed of elastically deformable rubber, resin, or the like is disposed between the bowl-shaped portion 22 and the hanging portion 103, and the drain port member 2 is screwed to the mounting member 110. Accordingly, the packing part 114 is sandwiched between the hook-like part 22 and the hanging part 103. This prevents water leakage from between the drain port member 2 and the wash bowl 100 (the hanging part 103).

  In addition, a concave (groove-shaped) locked portion 21A is provided on the outer periphery of a portion of the main body portion 21 located below the bowl-shaped portion 22, and the locked portion 21A An annular shape extending along the circumferential direction of the portion 21 is formed.

  The pipe 3 has a first pipe part 31 and a second pipe part 32 that each have a cylindrical shape and communicate with each internal space.

  The first piping part 31 has a straight tubular shape whose upper side portion extends in the up-down direction, and is intermittently provided with a plurality of through-holes 31 </ b> A penetrating from the outer periphery to the inner periphery along its own circumferential direction. In addition, an annular (C-shaped) ring portion 31 </ b> B made of an elastically deformable resin or the like and partially opened along the circumferential direction is provided on the outer periphery of the first piping portion 31. The ring portion 31B is configured to be deformable so that its own opening is widened, and as a result, its inner diameter can be enlarged.

  Furthermore, the inner peripheral portion 31C (corresponding to the “locking portion” of the present invention) of the ring portion 31B protrudes to the inner periphery of the first piping portion 31 through the through hole 31A, and the locked portion The pipe 3 is attached to the drain port member 2 by locking the inner peripheral portion 31 </ b> C with respect to 21 </ b> A. Thereby, the waste water from the wash bowl 100 flows through the drain port member 2 and the inside of the pipe 3. That is, the internal space of the pipe 3 constitutes a drainage channel through which drainage from the wash bowl 100 flows.

  An annular seal member 115 made of elastically deformable rubber or the like is provided between the outer peripheral surface of the drain port member 2 and the inner peripheral surface of the first pipe portion 31. The seal member 115 is sandwiched between the outer peripheral surface of the drain port member 2 and the inner peripheral surface of the first piping portion 31, and is interposed between the drain port member 2 and the first piping portion 31 (pipe 3) by the seal member 115. To prevent water leakage.

  Furthermore, as shown in FIG. 4, the upper side surface of the inner peripheral portion 31 </ b> C is tapered so as to incline downward from the outer peripheral side toward the inner peripheral side. Therefore, when the pipe 3 is attached to the drain port member 2, the tapered portion is brought into contact with the drain port member 2 while arranging the first pipe portion 31 in series with the drain port member 2. In this state, by moving the pipe 3 upward, the ring portion 31B is elastically deformed to gradually expand its inner diameter, and the drain port member 2 enters the inner periphery of the first pipe portion 31. Then, the pipe 3 is further moved upward, and when the ring portion 31B reaches the position where the locked portion 21A is formed, the ring portion 31B is released from its elastic deformation and returns to its original shape. The peripheral portion 31 </ b> C is locked to the locked portion 21 </ b> A, and as a result, the pipe 3 is attached to the drain port member 2. Therefore, in this embodiment, the piping 3 can be attached to the drain port member 2 with one touch without requiring a special tool or the like.

  In addition, since the locked portion 21A has an annular shape, the inner peripheral portion 31C locked to the locked portion 21A is freely movable along the circumferential direction. Therefore, the 1st piping part 31 (piping 3) can rotate relatively with respect to the drain port member 2, and can adjust the arrangement position along the circumferential direction with respect to the drain port member 2 by extension.

  As shown in FIG. 3, an inclined surface 31 </ b> D that is inclined with respect to the vertical direction is provided on the inner surface of the lower portion of the first piping portion 31.

  The second piping part 32 extends along the vertical direction, and is connected to the outer periphery of a portion of the first piping part 31 that is located downstream of the inclined part 31D in the inclination direction, and flows down through the inclined part 31D. The waste water is configured to be guided into the second piping portion 32.

  Further, the second pipe portion 32 is provided with a tubular tube connecting portion 32A that protrudes to the outer peripheral side, and a tube 107 extending from the overflow port 105 is connected to the tube connecting portion 32A. (See FIG. 2). In this embodiment, the overflow pipe 108 extended from the overflow port 105 is comprised by the coupling part 106, the pipe body 107, and the pipe body connection part 32A (refer FIG. 2). That is, one end of the overflow pipe 108 is connected to the second piping part 32 (pipe 3).

  The support cylinder 4 is fixed to the pipe 3 (in the present embodiment, formed integrally with the pipe 3), and includes a protruding cylinder part 41 and a downward cylinder part 42.

  The protruding cylinder portion 41 has a cylindrical shape extending upward from the inclined portion 31D, and is disposed in the internal space of the first piping portion 31 (piping 3). Further, the protruding cylinder portion 41 is formed so that the central axis thereof coincides with the central axis of the upper portion of the first piping portion 31 (the straight tubular portion disposed on the outer periphery of the drain port member 2). Therefore, even if the relative position along the circumferential direction of the first piping part 31 with respect to the drain port member 2 is changed, the central axis of the protruding cylinder part 41 is the central axis of the upper part of the first piping part 31. As a result, it coincides with the central axis of the drain port member 2.

  Furthermore, in this embodiment, as shown in FIG. 6, the opening of one end portion (tube body connection portion 32 </ b> A) of the overflow pipe 108 is positioned so as to overlap with at least a part of the protruding cylinder portion 41 along the vertical direction. Is provided.

  Returning to FIGS. 1 and 3, the downward cylindrical portion 42 has a cylindrical shape extending downward, and is disposed outside the pipe 3. In addition, a mounting portion 81 having a bottom surface portion 81A and a cylindrical cylindrical portion 81B standing on the outer periphery of the bottom surface portion 81A is attached to the downward cylindrical portion 42. More specifically, a female screw portion 81C is formed on the inner periphery of the cylindrical portion 81B, and a male screw portion 42A formed on the outer periphery of the downward cylindrical portion 42 is screwed to the female screw portion 81C, so that the attachment is performed. The part 81 (cylindrical part 81B) is attached to the outer periphery of the downward cylindrical part 42.

  Further, a cylindrical bush portion 82 made of an elastically deformable material (for example, rubber or resin) is disposed on the inner periphery of the downward cylindrical portion 42 and below the operation shaft 5. The bush portion 82 is in a state in which its outer peripheral surface is in pressure contact with the inner peripheral surface of the downward cylindrical portion 42, and as a result, water that has entered the support cylinder 4 flows into the bush portion 82 and the downward cylindrical portion 42. It is configured not to leak out from between.

  In addition, on the inner periphery of the bush portion 82, one end side of a long cylindrical outer skin portion 83 is disposed. The outer skin portion 83 is formed of an elastically deformable resin or the like, and its one end side outer peripheral surface is in pressure contact with the inner peripheral surface of the bush portion 82. As a result, the water that has entered the support cylinder 4 is prevented from leaking outside between the bush portion 82 and the outer skin portion 83.

  Further, one end portion of the outer skin portion 83 is attached to a cylindrical outer skin holding portion 84 provided in contact with the upper surface of the bush portion 82 on the inner periphery of the support cylinder 4. Further, a portion of the outer skin portion 83 extending from one end portion toward the other end side extends downward through an insertion hole 81D provided in the center of the bottom surface portion 81A and penetrating in the vertical direction. It is bent with a relatively small radius of curvature below the portion 82. The other end portion of the outer skin portion 83 is attached to the wash ball 100 or a structure provided in the vicinity of the wash ball 100, and an operation device (not shown) having a predetermined operation member (for example, an operation button) not shown. Connected).

  In addition, a transmission member 85 made of a metal wire or the like is disposed on the inner periphery of the outer skin portion 83 (not shown in FIG. 3). The transmission member 85 is configured to be relatively movable (reciprocating) with respect to the outer skin portion 83 on the inner periphery of the outer skin portion 83, and one end portion thereof is always protruded from the upper end of the outer skin holding portion 84. (Note that the transmission member 85 does not always have to protrude from the upper end of the outer skin holding portion 84, and may protrude from the upper end of the outer skin holding portion 84). Further, the other end of the transmission member 85 (the end on the side of the operating device) is configured to be able to contact the operation member, and the transmission member 85 reciprocates in the outer skin 83 by operating the operation member. As a result, the protruding amount of the transmission member 85 with respect to the upper end of the outer skin holding portion 84 is increased or decreased.

  In addition, the bush portion 82 includes a cylindrical bending suppression portion 82A that extends downward from the bottom surface portion 81A through the insertion hole 81D, and the outer skin portion 83 is disposed on the inner periphery of the bending suppression portion 82A. Has been.

  The operating shaft 5 is disposed on the inner periphery of the protruding cylinder portion 41 in a state in which the operation shaft 5 can be relatively moved in the vertical direction with respect to the protruding cylinder portion 41. In addition, the lower end portion of the operating shaft 5 is configured such that one end portion of the transmission member 85 can come into contact therewith, and the displacement of the operation member is transmitted to the operating shaft 5 via the transmission member 85. Yes. More specifically, the operating shaft 5 is pushed up by the transmission member 85 when one end portion of the transmission member 85 moves upward in accordance with the operation of the operation member. It comes to return to the position.

  The hair catcher constituting body 6 is provided above the protruding cylindrical portion 41, and includes a cylindrical cylindrical portion 61, and a collecting portion 62 and a supporting arm portion 63 provided on the outer periphery of the cylindrical portion 61, respectively. I have. In addition, the cylindrical part 61, the collection part 62, and the support arm part 63 are integrally formed by resin etc.

  The cylindrical part 61 is provided with a concave recess 61A at the center of its lower end, and the upper end of the protruding cylindrical part 41 is inserted into the recess 61A. In addition, the cylindrical part 61 is arrange | positioned so that an own central axis may correspond with the central axis of the protrusion cylinder part 41. FIG. The cylindrical portion 61 is configured to be rotatable relative to the protruding cylindrical portion 41.

  Further, a rod-like interlocking shaft 86 configured to be movable relative to the cylindrical portion 61 (up and down movement) is inserted through the inner periphery of the cylindrical portion 61. The interlocking shaft 86 is arranged in series above the operating shaft 5. When the operating shaft 5 moves up, the interlocking shaft 86 is pushed up, and when the operating shaft 5 moves down, the interlocking shaft 86 is moved. Is going to descend. In other words, the interlocking shaft 86 is configured to operate in conjunction with the operation shaft 5, and the operation shaft 5 and thus the interlocking shaft 86 moves up and down by operating the operation member.

  The collection unit 62 collects dust and the like contained in the wastewater, and has a mesh shape. Moreover, the collection part 62 is provided with the water flow hole 62A of the hexagonal shape in planar view comprised by the clearance gap of the mesh part, and waste_water | drain flows through the said water flow hole 62A below. Furthermore, the entire outer peripheral surface of the collection part 62 is in contact with the inner peripheral surface of the drain port member 2, whereby the hair catcher component 6 is held on the inner periphery of the drain port member 2 and the like. In addition, the entire outer peripheral surface of the collection part 62 is in contact with the drain port member 2, so that dust or the like does not flow between the outer peripheral surface of the collection part 62 and the drain port member 2 to the pipe 3 side. It has become.

  The support arm portion 63 has a plate shape that protrudes outward in the radial direction from the outer periphery of the cylindrical portion 61 below the collection portion 62. Further, a plurality of support arm portions 63 are provided intermittently (four in this embodiment) along the circumferential direction of the cylindrical portion 61, and pass through a gap formed between the adjacent support arm portions 63. The drainage flows to the pipe 3 side. Further, the gap between the outer peripheral end portion of the support arm portion 63 and the inner peripheral surface of the drain port member 2 is configured to be very small, and the hair catcher component 6 (tubular portion 61) is pivoted to the shaft. If even a slight deviation or inclination occurs, the outer peripheral end of the support arm 63 comes into contact with the drain port member 2, and further axial deviation or inclination of the hair catcher component 6 is prevented.

  The stopper lid 7 is provided in the drain outlet 102, and is made of a resin umbrella-shaped portion 71 whose surface is exposed on the surface of the wash bowl 100, and a rubber attached to the outer periphery on the back side of the umbrella-shaped portion 71. And an annular seal portion 72 made of an elastic material. Furthermore, the surface of the umbrella-shaped portion 71 is covered with a covering portion 73 made of stainless steel or the like, so that the appearance quality is improved.

  A tubular mounting hole forming portion 74 is formed in the center of the back surface of the umbrella-shaped portion 71, and the upper end portion of the interlocking shaft 86 is fitted to the inner periphery of the mounting hole forming portion 74, thereby The lid 7 is attached to the interlocking shaft 86. When the operating shaft 5 moves up and down by operation of the operating device (displacement of the operating member), the interlocking shaft 86 and the plug lid 7 move up and down, and as a result, the drain port 102 opens and closes. In addition, in this embodiment, the drain port 102 is closed when the outer periphery whole periphery of the annular seal part 72 contacts the wash ball 100 (bottom wall part 101).

  In addition, in the present embodiment, an annular protrusion 86A that is configured by a C-ring and protrudes radially outward from the outer periphery of the interlocking shaft 86 is provided on the lower end side of the interlocking shaft 86. On the other hand, a plurality of protrusions protruding radially inward are provided intermittently along the circumferential direction in the upper portion 61B located above the protrusion 86A in the tubular portion 61. The protrusion 86A is elastically deformable along the radial direction, and the outer diameter of the protrusion 86A in a normal state (when not deformed) is a virtual circle that passes through the innermost periphery of the protrusion in the upper portion 61B. Is larger than the diameter (the inner diameter of the upper part 61B), while force is applied to the interlocking shaft 86 and the like in the direction in which the interlocking shaft 86 is pulled out from the cylindrical part 61, and the protrusion 86A is brought into contact with the upper part 61B. Thus, when the protrusion 86A is elastically deformed radially inward, the outer diameter of the protrusion 86A is set to be equal to or smaller than the inner diameter of the upper portion 61B. Therefore, normally, by pulling up the stopper lid 7, the hair catcher structure 6 is also lifted together with the interlocking shaft 86, and the hair catcher structure 6 can be easily removed, and the protrusion 86 </ b> A is disposed radially inward. By being elastically deformed, the interlocking shaft 86 and the hair catcher component 6 can be separated.

  In addition, in the present embodiment, the adhesion preventing portion 9 is provided between the upstream portion 41A located on the upstream side in the flow direction of the drainage in the inclined portion 31D and the pipe 3 in the protruding cylindrical portion 41. . The adhesion preventing part 9 is integrally formed with the pipe 3 by resin or the like, and as shown in FIGS. 5 and 6, an upper surface part 91, a first side surface part 92, and a second side surface part 93 are provided. I have.

  The upper surface portion 91 of the pipe 3 is a portion that connects the upstream portion 41A and a portion that faces the upstream portion 41A along the flow direction of the drainage when viewed from above (when viewed from above). It is. In the present embodiment, the upper surface portion 91A is configured to extend along the radial direction (horizontal direction) of the protruding cylinder portion 41, and its own length along the radial direction is orthogonal to the radial direction. It is designed to be larger than its own width along the direction. That is, the adhesion preventing unit 9 in the present embodiment has a substantially rectangular shape in plan view. Further, the upper surface portion 91 is configured to be positioned below the upper end of the protruding cylinder portion 41, and the upper end portion of the protruding cylinder portion 41 is slightly protruded upward from the upper surface portion 91. In the present embodiment, the width of the upper surface portion 91 is configured to be equal to the outer diameter of the protruding cylinder portion 41.

  Further, the upper surface portion 91 is configured to be inclined downward from the center in the width direction toward the both side surface portions 92 and 93. Specifically, in the cross section orthogonal to the direction in which the upper surface portion 91 extends, the outline of the upper surface portion 91 is configured to have a curved surface that is convex upward.

  The first side surface portion 92 extends downward from the entire region of one edge in the width direction of the upper surface portion 91 and is coupled to both in a state where there is no gap between the pipe 3 and the upstream portion 41A.

  Further, the second side surface portion 93 extends downward from the entire other end edge in the width direction of the upper surface portion 91 and is connected to both in a state where there is no gap between the pipe 3 and the upstream side portion 41A. Yes. The second side surface portion 93 is provided in parallel with the first side surface portion 92.

  As described above in detail, according to the present embodiment, the support cylinder 4 is fixed to the pipe 3 (in the present embodiment, provided integrally). Therefore, a rib or the like for holding the support cylinder 4 is not necessary, and a portion located on the back side of the drainage port 102 such as the pipe 3 can be easily cleaned.

  Further, in the present embodiment, the so-called adhesion preventing portion 9 is provided so as to fill the space between the upstream portion 41A and the inclined portion 31D of the protruding cylindrical portion 41, and the upstream portion 41A and the inclined portion 31D are connected to each other. A portion corresponding to the boundary portion is configured not to exist inside the pipe 3. Therefore, it is possible to more reliably prevent the hair, dust, and the like from adhering to the protruding cylinder portion 41, and good hygiene can be obtained.

  Further, the presence of the adhesion preventing portion 9 can more reliably prevent the gap between the upstream portion 41A of the protruding cylinder portion 41 and the pipe 3 from becoming excessively narrow. Thereby, the inside of piping 3 can be cleaned more easily, and the outstanding cleaning nature can be acquired.

  Furthermore, since the upstream portion 41A is fixed to the pipe 3 via the adhesion preventing portion 9, it is possible to improve the deformation resistance of the protruding cylindrical portion 41 against an external force. For this reason, for example, when a heavy object such as a bucket containing water is placed on the stopper lid 7 or the like, or when the stopper lid 7 or the like is strongly pushed by hand, force is applied to the protruding cylinder portion 41. Even if it is a case, it can prevent more reliably that inclination (deformation) will arise in the protrusion cylinder part 41. FIG.

  Further, in the present embodiment, one end portion of the overflow pipe 108 is connected to the pipe 3 on the side of the protruding cylindrical portion 41. That is, one end of the overflow pipe 108 is connected to a part of the pipe 3 where the reduction of the water passage area due to the presence of the adhesion preventing part 9 is particularly concerned. For this reason, when draining from the drain outlet 102 side, not only the internal space of the pipe 3 but also the internal space of one end of the overflow pipe 108 can function as a drainage flow path, and a sufficiently large water flow area Can be secured. As a result, a decrease in drainage capacity can be prevented more reliably.

  Moreover, the axial displacement of the hair catcher structure 6 can be suppressed at three positions spaced apart in the vertical direction (positions where the collection part 62, the support arm part 63, and the recess 61A are provided). Thereby, it can suppress effectively that the hair catcher structure 6 (cylinder-shaped part 61) generate | occur | produces inclination, and it will interfere with the normal operation | movement (opening / closing of the drain port 102) of the plug lid 7. It can be prevented more reliably.

  In addition, since the upper surface portion 91 is inclined downward from the center in the width direction toward the both side surface portions 92 and 93, hair, dust, and the like riding on the upper surface portion 91 are drained so that the first side surface portion 92 and the It becomes easy to be poured to 2 side part 93 side. Therefore, it is possible to more reliably prevent hair, dust, and the like from adhering to the upper surface portion 91, thereby further improving hygiene.

  Further, the outer skin portion 83 extending downward through the insertion hole 81D is configured to be disposed on the inner periphery of the elastically deformable bending suppression portion 82A. Therefore, when an external force is applied to the outer skin portion 83, the bending suppressing portion 82A becomes an obstacle, so that the outer skin portion 83 can be prevented from being bent with an excessively small radius of curvature. Moreover, since the bending suppression part 82A which deform | transformed with the application of the external force with respect to the outer skin part 83 tends to return to the original shape, the situation where the outer skin part 83 will be maintained in the state bent excessively can be prevented more reliably. . As a result, the transmission member 85 is prevented from being damaged, and the transmission member 85 is smoothly moved relative to the outer skin portion 83 (that is, the displacement of the operation member is more reliably transmitted to the operating shaft 5). Is possible.

  Moreover, the bush part 82 can seal between the downward cylinder part 42 and the outer skin part 83 in a watertight manner, and can prevent water leakage to the outside of the pipe 3. Further, if the outer skin portion 83 is bent excessively, a gap may be generated between the outer skin portion 83 and the bush portion 82, but in the present embodiment, the outer skin portion 83 is present due to the presence of the bending suppressing portion 82A. Therefore, the generation of the gap can be suppressed, and the sealing performance can be further improved. In other words, the bend suppressing portion 82A can not only prevent the transmission member 85 from being damaged, but also improve the sealing performance.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the cylindrical portion 61 is configured to be rotatable relative to the protruding cylindrical portion 41, and the arrangement positions of the support arm portions 63 along the circumferential direction of the cylindrical portion 61 are variously different. Can be. On the other hand, as shown in FIG. 7, positioning in which one support arm portion 63 is disposed above the upper surface portion 91 while restricting relative rotation of the tubular portion 61 with respect to the protruding tubular portion 41. Means 121 may be provided. For example, as shown in FIG. 8A, the positioning means 121 includes a convex portion 121A that protrudes inward in the concave portion 61A of the cylindrical portion 61, and an upper end of the protruding cylindrical portion 41 as shown in FIG. Among the parts, the support arm part 63 is disposed above the upper surface part 91, and is provided at a position located below the convex part 121A. Can be configured. By the positioning means 121, the support arm portion 63 is disposed above the upper surface portion 91 (the upper surface portion 91 and the support arm portion 63 overlap with each other), so that the water flow area can be effectively reduced due to the presence of the support arm portion 63. Can be suppressed. Thereby, a favorable drainage capacity can be ensured more reliably.

  For example, as shown in FIG. 9, a notch-shaped communication portion 122A that is provided at the lower end portion of the cylindrical portion 61 and communicates the recess 61A and the outside of the cylindrical portion 61, and a protruding cylindrical portion in the recess 61A. When the upper end portion of 41 is inserted, the positioning means 122 may be constituted by the adhesion preventing portion 9 disposed in the communication portion 122A. That is, the adhesion preventing part 9 may constitute a part of the positioning means.

  (B) In the above embodiment, the support arm portion 63 is provided in order to prevent the axial displacement of the hair catcher component 6 or the like. However, as shown in FIG. Good. In this case, the six hair catcher configurations can be simplified, and the manufacturing cost can be reduced.

  Even in this case, since the upper end portion of the protruding cylindrical portion 41 is inserted into the concave portion 61 </ b> A, the axial deviation on the lower side of the hair catcher component 6 can be sufficiently suppressed. Therefore, in combination with the ability to suppress the axial deviation on the upper side of the hair catcher constituting body 6 by the collecting portion 62 that contacts the drain port member 2, the hair catcher constituting body 6 (tubular portion 61) is inclined. Therefore, it is possible to more reliably prevent the normal operation of the plug lid 7 (opening / closing of the drain port 102) from being hindered.

  (C) In the above embodiment, the adhesion preventing portion 9 has a substantially rectangular shape in plan view. However, as shown in FIGS. 11A and 11B, the adhesion preventing portion 130 has a fan shape in plan view. You may comprise as follows. In other words, the upper surface portion 131 may be formed in a fan shape in plan view, and the first side surface portion 132 and the second side surface portion 133 may extend downward from the width direction end portion of the upper surface portion 131.

  (D) In the above embodiment, the support cylinder 4 is formed integrally with the pipe 3. However, after the two are formed separately, the support cylinder 4 is fixed to the pipe 3. Also good. Moreover, in the said embodiment, although the adhesion prevention part 9 is integrally formed with the piping 3 and the support cylinder 4, after forming an adhesion prevention part separately from a piping and a support cylinder, an adhesion prevention part is piping. And you may comprise so that it may be fixed to a support cylinder.

  (E) In the above embodiment, the interlocking shaft 86 arranged in series with respect to the operating shaft 5 is provided on the inner periphery of the cylindrical portion 61, but the elongated operating shaft 5 is cylindrical. The interlocking shaft 86 may be omitted by arranging the stopper lid 7 on the operation shaft 5 while being arranged on the inner periphery of the portion 61.

  (F) In the above-described embodiment, the attached portion 81 is attached to the downward cylindrical portion 42 by the male screw portion 42A of the downward cylindrical portion 42 being screwed to the internal screw portion 81C of the inner periphery thereof. The attachment aspect of the to-be-attached part 81 with respect to the downward cylinder part 42 is not limited to this. Therefore, for example, the attachment portion 81 may be attached to the outer periphery of the downward cylinder portion 42 by locking the inner periphery of the attachment portion 81 to the outer periphery of the downward cylinder portion 42.

  (G) In the said embodiment, although the outer peripheral surface of the collection part 62 is comprised so that the drain outlet member 2 may be comprised, it comprises so that the outer peripheral surface of the collection part 62 may contact the wash bowl 100. Also good. Moreover, you may comprise so that the outer peripheral surface of the collection part 62 may contact the member attached to the wash bowl 100 other than the drain port member 2. FIG.

  (H) In the above embodiment, the support arm portion 63 is configured to be able to contact the inner peripheral surface of the drain port member 2, but by making the support arm portion 63 contactable to the wash bowl 100, a hair catcher It is good also as preventing the axial shift etc. of the structure 6. FIG. Moreover, you may comprise so that the support arm part 63 may contact the member attached to the wash bowl 100 other than the drain port member 2. FIG. Further, the support arm portion 63 does not necessarily need to be in direct contact with the wash bowl 100, the drain port member 2, and the like. For example, the support arm portion 63 can be inserted into the wash ball 100 or the drainage via a predetermined member. It may be possible to indirectly contact the mouth member 2 or the like.

(I) In the above embodiment, the drain seal 102 is configured to be closed by the annular seal portion 72 coming into contact with the wash ball 100 (bottom wall portion 102). You may comprise so that the drain port 102 may be closed by contacting members other than 100 (for example, the drain port member 2).

  (J) In the above embodiment, the upper surface portion 91 is configured to extend along the radial direction (horizontal direction) of the protruding cylindrical portion 41, but the upper surface portion 91 is slightly inclined with respect to the radial direction. You may comprise so that it may extend.

  (K) In the above embodiment, the upper surface portion 91 is configured to have an upwardly convex curved surface shape, but the shape of the upper surface portion 91 is not limited to this. Therefore, for example, the central portion in the width direction of the upper surface portion 91 has a flat surface shape and is inclined downward from the central portion in the width direction toward the first and second side surface portions 92 and 93 (that is, in cross-sectional view). It may also be configured (substantially trapezoidal). Further, the entire upper surface portion 91 may be flat.

  (L) In the above embodiment, the wash bowl 100 is illustrated as the tank body, but the tank body to which the technical idea of the present invention can be applied is not limited to the wash ball. Therefore, for example, the technical idea of the present invention may be applied to a bathtub or a sink of a sink.

  DESCRIPTION OF SYMBOLS 1 ... Drain plug apparatus, 3 ... Piping, 4 ... Support cylinder, 5 ... Operating shaft, 6 ... Hair catcher structure, 7 ... Plug cover, 9 ... Adhesion prevention part, 21A ... Locked part, 31C ... Inner peripheral part (Locking part), 31D ... inclined part, 41 ... projecting cylindrical part, 41A ... upstream part, 42 ... downward cylindrical part, 61 ... cylindrical part, 61A ... concave part, 62 ... collecting part, 62A ... water passage hole , 63 ... supporting arm part, 81 ... attached part, 81A ... bottom face part, 81B ... cylindrical part, 81D ... insertion hole, 82 ... bush part, 82A ... bending suppression part, 83 ... outer skin part, 85 ... transmission member, 86 DESCRIPTION OF SYMBOLS ... Interlocking shaft, 91 ... Upper surface part, 92 ... 1st side surface part, 93 ... 2nd side surface part, 100 ... Washing-ball (tank), 102 ... Drain port, 105 ... Overflow port, 108 ... Overflow pipe, 121 ... Positioning means.

Claims (7)

A stopper lid provided at the drain of the tank body;
A cylindrical drainage port member attached to the tank body;
A cylindrical pipe attached to the drainage port member and having a drainage flow path through which drainage from the tank body flows.
An operating shaft for moving the stopper lid up and down by its own vertical movement;
A drain plug device comprising a cylindrical support tube that supports the operating shaft in a state in which the operating shaft can move up and down on its inner periphery,
An inclined portion that is inclined with respect to the vertical direction is provided on the inner surface of the pipe,
The support cylinder is
Fixed to the pipe,
Projecting upward from the inclined portion, and having a projecting cylindrical portion disposed in the internal space of the pipe,
When the portion located on the upstream side in the flow direction of the drainage in the inclined portion of the protruding cylindrical portion is the upstream portion,
Among the pipes, when viewed in plan, a part facing the upstream part along the flow direction, and an upper surface part connecting the upstream part,
A first side surface portion that extends downward from the entire region of one edge in the width direction of the upper surface portion, and is connected to the pipe and the upstream portion in a state where no gap exists between the pipe and the upstream portion; ,
A second side surface portion extending downward from the entire widthwise other end edge of the upper surface portion and connected to the piping and the upstream portion in a state where no gap exists between the piping and the upstream portion. A drain plug device comprising an adhesion preventing portion having One end of an overflow pipe extending from the overflow port of the tank body is connected to the pipe,
2. The drain plug device according to claim 1, wherein the opening of the one end portion of the overflow pipe is provided at a position overlapping with at least a part of the protruding cylindrical portion in the vertical direction. The pipe has a locking portion protruding radially inward,
The drain port member has a recessed locked portion that can be locked by the locking portion,
The piping is attached to the drain port member by locking the locking portion with respect to the locked portion, and
The drain plug device according to claim 2, wherein a relative position along a circumferential direction of the pipe with respect to the drain port member is adjustable. An interlocking shaft that is arranged in series with the working shaft above the working shaft and that can be moved up and down by the vertical movement of the working shaft, and a cylinder in which at least one of the working shafts is inserted into the inner periphery And
Provided on the outer periphery of the cylindrical portion, and the outer peripheral surface of the cylindrical portion is capable of contacting at least one of the tank body and the member attached to the tank body, and includes a collecting section having a water passage hole. And
The tubular portion includes a hair catcher structure disposed above the protruding tubular portion,
The cylindrical portion has a recess at its lower end that can be inserted through the upper end of the protruding cylinder.
The drain plug device according to any one of claims 1 to 3, wherein an upper end portion of the protruding cylindrical portion is inserted into the concave portion. An interlocking shaft that is arranged in series with the working shaft above the working shaft and that can be moved up and down by the vertical movement of the working shaft, and a cylindrical portion into which at least one of the working shafts is inserted into the inner periphery When,
The outer peripheral surface of the cylindrical portion is provided on the outer peripheral surface of the tank body and the tank and the member attached to the tank body can be in contact with at least one of the collectors,
Projecting radially outward from the outer periphery of the cylindrical portion below the collecting portion, and provided intermittently along the circumferential direction, at least of the tank body and the member attached to the tank body A support arm that can be directly or indirectly contacted with one side,
The tubular portion includes a hair catcher structure disposed above the protruding tubular portion,
5. The positioning device according to claim 1, further comprising a positioning unit that restricts relative rotation of the cylindrical portion with respect to the protruding cylindrical portion in a state where the support arm portion is disposed above the upper surface portion. The drain plug device according to 1.   The drain plug device according to any one of claims 1 to 5, wherein the upper surface portion is inclined downward from the center in the width direction toward the both side surface portions. The support tube protrudes downward from the pipe and has a cylindrical downward tube portion disposed outside the pipe.
A bottom portion having an insertion hole penetrating in the vertical direction, and a cylindrical portion standing on the outer periphery of the bottom portion, and a mounted portion to which the cylindrical portion is attached to the outer periphery of the downward cylindrical portion; ,
A cylindrical outer skin portion that is disposed so as to be capable of relative movement on the inner periphery of the operation member and that transmits a displacement of a predetermined operation member to the operating shaft, and extends downward through the insertion hole;
A cylindrical bush portion made of an elastically deformable material is provided below the operating shaft in a state of being in contact with both between the inner periphery of the downward tube portion and the outer periphery of the outer skin portion. The bush portion includes a cylindrical bending suppression portion that extends downward from the bottom surface portion through the insertion hole, and the outer skin portion is disposed on an inner periphery of the bending suppression portion. The drain plug device according to any one of 1 to 6.

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