JP2016108863A - Drain plug device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain plug device that keeps a variation range relatively small of a protruded amount of a support protrusion when a rotary part is rotated.SOLUTION: A drain plug device 1 includes a pipe 51 having a cylindrical main body pipe 51A, a water communicating member 52 having an annular outer peripheral wall part 52A disposed along an inner peripheral surface of the main body pipe 51A, and a plug cover side mechanism part 4. The plug cover side mechanism part 4 includes a rotary part 41, and a support protrusion protruding into the main body pipe 51A from the rotary part 41, the support protrusion having the outer peripheral wall part 52A mounted thereon for supporting the water communicating member 52. The rotary part 41 is positioned such that a rotary shaft thereof does not intersect with a central axis of the main body pipe 51A. A rotation range of the rotary part 41 is determined such that a central axis of the support protrusion moves in a range that does not extend beyond the rotary shaft when seen from above while the outer peripheral wall part 52A is mounted on the support protrusion.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a drain plug device provided at a drain outlet of a tank body.

  The drain plug device is provided with a plug lid provided at a drain port of a tank body (for example, a bathtub or a basin), and opens and closes the drain port by moving the plug lid up and down.

  The drain plug device includes a support shaft that supports the plug lid, and a plug lid side mechanism portion (support mechanism) that holds the support shaft in a vertically movable state. It is generally known that the lid is moved up and down by being transmitted to the support shaft by a transmission member or the like (see, for example, Patent Document 1).

  Further, in recent years, a pivotable rotation portion and a support protrusion that protrudes from the rotation portion toward the inside of the pipe and a water passage member that holds the support shaft with respect to the support protrusion are placed. Thus, there has been proposed a drain plug device that supports a water passage member, a plug lid, and the like by a support protrusion (see, for example, Patent Document 2). In this technology, the support protrusion moves up and down as the rotation unit rotates, so that the water passing member and thus the plug lid move up and down. In addition, since the support protrusion is configured so as not to reach the center of the pipe, the prevention of adhesion of foreign matters and the like to the support protrusion and the improvement of the cleaning property are achieved.

Japanese Patent Laid-Open No. 11-21965 JP 2012-36558 A

  By the way, in general, the pipe has a cylindrical shape, and the inner peripheral surface thereof has a curved surface shape. In the above technique, as shown in FIGS. 8A and 8B, as the rotating portion 241 rotates, There is a possibility that the protrusion amount of the support protrusion 244 with respect to the inner peripheral surface of the pipe 251 may greatly fluctuate. For example, when viewed from above, when the support protrusion 244 is disposed in one of the two regions sandwiching the rotation axis CL22 of the rotation unit 241, the support protrusion with respect to the inner peripheral surface of the pipe 251 is supported. The protrusion amount P of 244 becomes relatively large (see FIG. 8A). On the other hand, when the support protrusion 244 is disposed in the other region of the two regions, the protrusion amount P of the support protrusion 244 with respect to the inner peripheral surface of the pipe 251 becomes relatively small. [Refer FIG.8 (b)].

  Here, from the viewpoint of stably supporting the water-permeable member by the support protrusion and ensuring the operational stability of the apparatus, even when the support protrusion is arranged at a position where the protrusion amount P is the smallest, the protrusion It is desirable that the amount P be sufficiently large. However, with this configuration, when the support protrusion is arranged at a position where the protrusion amount P is the largest, the protrusion amount P becomes excessively large. For this reason, the support protrusions may become an obstacle during cleaning, and foreign matters may easily adhere to the support protrusions during drainage, which may lead to deterioration in cleaning properties and hygiene.

  This invention is made | formed in view of the said situation, The objective is to provide the drain plug apparatus which can suppress the fluctuation range of the protrusion amount of the support protrusion accompanying rotation of a rotation part comparatively small. It is in.

  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 plug lid for opening and closing the drain of the tank body;
A support shaft for supporting the stopper lid at its upper end;
A pipe having a cylindrical main body pipe, and a cylindrical mounting pipe protruding from the outer periphery of the main body pipe and communicating with the main body pipe;
While having an annular outer peripheral wall portion arranged along the inner peripheral surface of the main body pipe, a water passing member that supports the support shaft;
The rotatable rotation part inserted through the attachment pipe, and the outer peripheral wall part is placed in a state of protruding from the rotation part into the main body pipe and opening the drain port. A stopper protrusion mechanism that has a support protrusion for supporting the water passage member, and is configured so that the support protrusion moves up and down as the rotation section rotates.
A drain plug device configured such that the tip of the support protrusion does not reach the center of the main body tube,
The rotating unit is provided at a position where the rotating shaft of the rotating unit and the central axis of the main body tube do not intersect with each other,
The support projection is configured to be separable from the outer peripheral wall portion in a state where the drain port is closed,
In a state where the outer peripheral wall portion is placed on the support projection, the rotation is performed so that the center axis of the support projection moves within a range not exceeding the rotation axis of the rotation portion when viewed from above. A drain plug device characterized in that a pivotable range of the moving part is defined.

  According to the means 1, the tip of the support protrusion is configured not to reach the center of the main body pipe, and the protrusion amount of the support protrusion from the pipe (main body pipe) is very small. Therefore, it is possible to more reliably prevent foreign matters and the like from adhering to the support protrusions and improve hygiene. In addition, the support protrusion is less likely to become an obstacle during cleaning, and the cleaning performance can be improved.

  Further, according to the above means 1, when the outer peripheral wall portion is placed on the support protrusion (the water passage member is supported by the support protrusion and can be drained), the support protrusion is viewed from above. The central axis moves within a range that does not exceed the rotation axis of the rotation unit. That is, in a state where the outer peripheral wall portion is placed on the support protrusion, the range of movement of the support protrusion along the direction orthogonal to the rotation axis when viewed from above is two between the rotation axes. It is limited to a range in which the central axis of the support protrusion is located in one of the areas (both areas each including the rotation axis), and is relatively small. Therefore, in the state where the water passage member is supported by the support protrusion and drainage is possible, the fluctuation width of the protrusion amount of the support protrusion with respect to the inner peripheral surface of the pipe (main body pipe) accompanying the rotation of the rotation portion. Can be kept relatively small. As a result, the amount of protrusion of the support protrusion is such that foreign substances can be more reliably prevented from adhering to the support protrusion during drainage while realizing stable support of the water passage member (outer peripheral wall) by the support protrusion. Can be set to size. As a result, it is possible to further improve the cleanability and hygiene while ensuring the operational stability of the apparatus.

  Mean 2. The drain plug device according to claim 1, wherein a contact portion between the support protrusion and the water passage member is configured to be able to pass through a plane including the central axis of the main body pipe and parallel to the rotation axis. .

  In a state where the support protrusion is disposed at a position facing the central axis of the main tube and in the vicinity thereof, the support protrusion is in a direction perpendicular to the rotation axis as viewed from above as the rotation portion rotates. When moving along, the amount of change in the protrusion amount per unit movement amount is relatively small.

  In view of this point, according to the means 2, the contact portion between the support protrusion and the water passage member (outer peripheral wall portion) includes the central axis of the main body tube when the rotating portion rotates, and the rotating portion rotates. It can pass through a plane parallel to the moving axis. In other words, when the water passage member is supported by the support protrusion and drainage is possible, when the support protrusion moves along the direction orthogonal to the rotation axis as seen from above, the support protrusion is The amount of movement of the protruding amount per unit moving amount is moved within a relatively small range. Therefore, in the state where the water passage member is supported by the support protrusion and drainage is possible, the fluctuation range of the protrusion amount due to the rotation of the rotation portion can be further reduced. As a result, it is possible to further improve the operational stability, cleanability and hygiene of the apparatus.

  Means 3. The drain plug device according to claim 2, wherein the flat surface is positioned at the center of the movement range of the contact portion when viewed from above.

  The “center” does not have to be strictly the center, but may be almost the center.

  According to the means 3, when viewed from above, the support protrusion moves with the plane as the center of its movement range. Therefore, when the support protrusion moves from the position farthest from the rotation axis to the position closest to the rotation axis as viewed from above, the protrusion amount gradually decreases and the support protrusion overlaps the plane. It becomes almost the maximum at the time of the movement, and then becomes almost the same as the movement start time. As a result, the variation width of the protrusion amount accompanying the rotation of the rotation portion in a state where the water passage member is supported by the support protrusion and drainage is possible can be further reduced. As a result, it is possible to further improve the operational stability, cleanability, and hygiene of the apparatus.

  Means 4. The opening of the attachment tube located on the main body tube side has a shape corresponding to the movement range of the support protrusion, and the support protrusion is inserted in any one of means 1 to 3. Drain plug device.

  When the opening of the attachment tube is formed in a circular shape when viewed from the front, a step portion located between the opening of the attachment tube and the rotating portion may be exposed in the main body tube. Here, especially in the case where the rotation axis of the rotation part and the central axis of the main body tube do not intersect like the above-mentioned means 1 etc., the area of the stepped portion tends to be relatively large. . Therefore, if the stepped portion is exposed in the main body tube, foreign matter is likely to adhere to the stepped portion, or cleaning of the stepped portion becomes difficult, and in terms of hygiene and cleaning properties There is a slight possibility of adverse effects.

  In this regard, according to the means 4, the stepped portion can be hardly exposed in the main body tube (the amount of exposure of the stepped portion relative to the main body tube can be reduced). Therefore, hygiene and cleaning properties can be further improved.

It is sectional drawing which shows the structure of the part provided in the drain outlet side among drain plug devices. It is sectional drawing of an operating device. It is a partial see-through | perspective side view of the stopper lid side mechanism part attached to piping. It is the JJ sectional view taken on the line of FIG. It is a perspective view which shows structures, such as a case member and a moving direction conversion part. It is a cross-sectional schematic diagram for demonstrating the movement range of a support protrusion. It is sectional drawing which shows opening of an attachment pipe in another embodiment. (A), (b) is a partial fracture | rupture schematic diagram for demonstrating the fluctuation | variation of the protrusion amount of the support protrusion accompanying the rotation of the rotation part in a prior art.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, the drain plug device 1 is attached to a basin 100 or the like as a tank body, and includes an operation device 2, a release wire 3, a plug lid side mechanism portion 4, and a drain port. And a device 5.

  As shown in FIG. 2, the operating device 2 is capable of reciprocating on a cylindrical guide portion 21 attached to a wall-like back guard 101 provided in the vicinity of the washbasin 100 and on the inner periphery of the guide portion 21. And a displacement member 22 disposed on the surface.

  In addition, one end of the displacement member 22 is attached to the other end of a transmission member 31 (described later) of the release wire 3 so that the transmission member 31 reciprocates as the displacement member 22 reciprocates.

  Further, an operation side bending guide member 6 having a cylindrical shape that is bent substantially at a right angle is attached to the outer periphery of one end portion of the guide portion 21. And the other end part of the tube member 32 mentioned later of the release wire 3 is hold | maintained in the inner periphery of the operation side bending guide member 6. FIG.

  The release wire 3 includes a long transmission member 31 made of a wire or the like and a long cylindrical tube member 32 made of resin, rubber, or the like. The transmission member 31 is disposed on the inner periphery of the tube member 32, and reciprocates with respect to the tube member 32 as the displacement member 22 is displaced.

  The plug lid side mechanism unit 4 is configured to be freely attachable to and detachable from a pipe 51 (to be described later) of the drain port device 5, and in this embodiment, FIG. 1 and FIG. The plug lid side guide member 7 and the like are attached to the outside of the pipe 51 as shown in FIG. Further, as shown in FIGS. 4 and 5, the plug lid side mechanism unit 4 is connected to a rotatable rotation unit 41 and one end of the transmission member 31, and reciprocating the transmission member 31. The moving direction converting part 42 for converting to the moving direction and the moving direction converting part 42 are housed inside and a case member 43 attached to the pipe 51 is provided.

  The rotating portion 41 protrudes from the inside of the case member 43 to the outside, and this protruding portion is inserted into a mounting pipe 51B described later of the pipe 51. Moreover, the rotation part 41 has the rod-shaped support protrusion 44 which protrudes in the piping 51 (main body pipe | tube 51A) in the outer peripheral side of the end surface located in the internal space side of the main body pipe | tube 51A mentioned later of the piping 51. As shown in FIG. . The support protrusion 44 is relatively short so that the tip thereof does not reach the center of the main body pipe 51A (the central axis CL1 of the main body pipe 51A). Further, as the rotating portion 41 rotates, the support protrusion 44 moves up and down while rotating. In the present embodiment, the turning radius of the support protrusion 44 (the distance from the turning axis CL2 of the turning portion 41 to the center axis of the supporting protrusion 44) is along the direction of the center axis CL1 of the main body tube 51A. The radius of the portion corresponding to the range in which the support protrusion 44 can be arranged is made smaller.

  In the present embodiment, the support protrusion 44 moves in a direction orthogonal to the rotation axis CL <b> 2 of the rotation unit 41 as viewed from above as the rotation unit 41 rotates. The movable range of the support protrusion 44 along the direction orthogonal to the rotation axis CL2 of the rotation part 41 will be described in detail later.

  Further, in the present embodiment, since the main body tube 51A is cylindrical, the main body tube 51A is supported from at least a portion corresponding to the opening 51K on the main body tube 51A side of the attachment tube 51B with the rotation of the rotation portion 41. The distance along the rotation axis CL <b> 2 of the rotation unit 41 to the tip of the protrusion 44 varies. That is, with the rotation of the rotation part 41, the protrusion amount of the support protrusion 44 with respect to the inner peripheral surface of the main body pipe 51A varies.

  The movement direction conversion part 42 includes a rack part 42A connected to one end part of the transmission member 31, and a rotatable gear part 42B that is meshed with the rack part 42A and provided coaxially with the rotation part 41. It has. When the transmission member 31 reciprocates, the rack portion 42A reciprocates within the case member 43, and the rotation portion 41 rotates due to the rotation of the gear portion 42B. As a result, the support protrusion 44 rotates and moves up and down. It is supposed to be.

  The case member 43 includes a plurality of locking portions 43 </ b> A extending in parallel with the rotating portion 41 on the surface on the protruding side of the rotating portion 41. The locking portion 43A has a hook shape with its tip protruding to the outer peripheral side. Further, a protruding portion 43B that protrudes to the outer peripheral side is formed on the side surface portion of the locking portion 43A.

  In addition, a front contact portion 43C and a rear contact portion 43D are provided at a portion of the case member 43 in which the rack portion 42A is accommodated so as to sandwich the front and rear in the reciprocating direction of the rack portion 42A. Then, when the rack portion 42A moves forward with the forward movement of the transmission member 31, the rack portion 42A comes into contact with the front side contact portion 43C, so that further forward movement of the rack portion 42A is restricted, and consequently rotates. Further rotation of the portion 41 is restricted. On the other hand, when the rack portion 42A is moved backward along with the backward movement of the transmission member 31, the rack portion 42A comes into contact with the rear side contact portion 43D, so that further backward movement of the rack portion 42A is restricted, and consequently Further rotation of the moving part 41 is restricted. In other words, in the present embodiment, the front side contact portion 43C and the rear side contact portion 43D constitute a rotation range defining means for defining a rotatable range of the rotation portion 41.

  Further, a tubular lid cover side guide member 7 is attached to the outlet portion of the release wire 3 in the case member 43. One end portion of the tube member 32 is held inside the stopper cover side guide member 7.

  As shown in FIG. 1, the drain port device 5 includes a pipe 51, a water passage member 52, a support shaft 53, a hair catcher 54, and a plug lid 55.

  The pipe 51 is attached to the back surface of the bottom wall portion 102 such that its internal space communicates with a drain port 103 formed through the bottom wall portion 102 of the basin 100. More specifically, a female threaded portion 51E is formed on the inner periphery of the upper end of the pipe 51, and a cylindrical drainage port member 57 having a male threaded portion 57A on the outer periphery is screwed into the female threaded portion 51E. The piping 51 is attached to the back surface of the bottom wall portion 102 by sandwiching the bottom wall portion 102 between the upper edge portion of the upper end portion 57 and the upper end portion of the piping 51. And the waste water which passed the drain outlet 103 flows into the inside of the piping 51, and is discharged | emitted. An annular seal member 8 made of an elastically deformable material is disposed between the upper end portion of the pipe 51 and the bottom wall portion 102, and the gap between the pipe 51 and the bottom wall portion 102 is arranged by the seal member 8. It is sealed watertight.

  The pipe 51 is formed so as to protrude in a horizontal direction from the outer periphery of the main body pipe 51A, and the main body pipe 51A having a cylindrical shape extending along the vertical direction. And a cylindrical mounting pipe 51B that communicates with the pipe. In the present embodiment, the attachment tube 51B has an inner diameter smaller than that of the main body tube 51A. Further, the attachment pipe 51B is disposed slightly shifted in the direction perpendicular to the radial direction of the main body pipe 51A so that its own central axis does not intersect with the central axis CL1 of the main body pipe 51A (see FIG. 4). For this reason, the rotation part 41 inserted through the attachment pipe 51B is arranged such that its own rotation axis CL2 does not intersect the center axis CL1 of the main body pipe 51A. In the present embodiment, the opening 51K of the attachment pipe 51A located on the main body pipe 51A side has a circular shape when viewed from the front.

  Further, a pair of mounting hole portions 51C that are rotationally symmetric with respect to the central axis of the mounting tube 51B are formed through the end portion of the mounting tube 51B that is located on the opposite side of the main body tube 51A (see FIG. 4). ). The mounting hole 51C has a curved shape extending along the circumferential direction of the mounting tube 51B. Further, a recessed portion (not shown) having a shape recessed toward the outer peripheral side is formed in a portion of the attachment tube 51B where the attachment hole 51C is formed.

  Then, from the outside of the pipe 51, the rotation part 41 is inserted into the attachment pipe 51B, and the locking part 43A of the case member 43 is inserted into the attachment hole 51C. (Case member 43) is rotated, and the locking portion 43A is locked to the mounting tube 51B (particularly, the portion corresponding to the mounting hole 51C in the mounting tube 51B), while the recess portion of the mounting tube 51B is engaged. The stopper lid side mechanism 4 is attached to the pipe 51 by locking the protrusion 43B. In addition, the stopper lid side mechanism part 4 can be removed from the piping 51 in the reverse procedure to the attachment method. That is, the stopper lid side mechanism portion 4 can be attached to and detached from the pipe 51 from the outside.

  In addition, since the protrusion 43B is locked to the recess, in the state in which the case member 43 is attached to the attachment pipe 51B, the plug lid side mechanism part 4 is in a state in which relative rotation with respect to the attachment pipe 51B is difficult. At a certain relative position. As described above, the stopper cover side mechanism 4 is attached to the attachment pipe 51B at a fixed relative position, so that the support protrusion 44 is arranged at a fixed position with respect to the pipe 51.

  The water flow member 52 includes an annular outer peripheral wall portion 52A and a lower collecting portion 52C extending inward from the inner periphery of the outer peripheral wall portion 52A.

  The outer peripheral wall 52A is arranged in the pipe 51 (main body pipe 51A) so as to be along the inner peripheral surface of the pipe 51 (main body pipe 51A). Further, the lower end surface of the outer peripheral wall portion 52 </ b> A is placed on the support protrusion 44, so that the water passage member 52 is supported in the pipe 51 (main body pipe 51 </ b> A) by the support protrusion 44. Yes.

  52 C of lower collection parts have the inner peripheral part being fixed to the support shaft 53, and have several ribs extended along the radial direction of 52 A of outer peripheral wall parts. In the lower collecting portion 52C, the waste water flowing through the main body pipe 51A flows down through the gap formed between the ribs, while the dust and the like contained in the waste water are collected.

  The support shaft 53 has a rod shape, and an upper end portion thereof is attached to the central portion of the back surface of the stopper lid 55, and a lower end side portion thereof is fixed to the water passage member 52. Therefore, when the support protrusion 44 moves up and down and the water passage member 52 moves up and down, the support shaft 53 and the plug lid 55 move up and down together with the water passage member 52.

  The hair catcher 54 extends from the outer periphery of the support shaft 53 toward the outer periphery, and has a function of collecting dust and the like contained in the drainage flowing through the main body pipe 51A.

  The plug lid 55 includes a disc-shaped lid portion 55A made of resin or the like, and an annular packing portion made of an elastically deformable material (for example, rubber or resin) attached to the back outer peripheral side of the lid portion 55A. 55B. In the present embodiment, when the support protrusion 44 is moved downward along with the displacement of the displacement member 22, the plug lid 55 is moved down together with the water passing member 52 and the support shaft 53, and the entire outer peripheral portion of the packing portion 55B is the bottom wall portion. By contacting 102, the drainage port 103 is closed. On the other hand, when the support protrusion 44 moves upward with the displacement of the displacement member 22, the plug lid 55 moves upward together with the water passing member 52 and the support shaft 53, and the packing portion 55 </ b> B is separated from the bottom wall portion 102. Thus, the drainage port 103 is opened.

  In the present embodiment, the support protrusion 44 is in contact with the lower end surface of the outer peripheral wall portion 52A when the drainage port 103 is opened. However, when the drainage port 103 is closed, the support protrusion 44 is connected to the outer peripheral wall portion 52A. It is separated from the lower end surface. Thereby, when the drain outlet 103 is closed, the stopper lid 55 (packing portion 55B) can be reliably brought into contact with the bottom wall portion 102, and good water tightness can be obtained.

  In the present embodiment, the unit 56 including the water passage member 52, the support shaft 53, the hair catcher 54, and the plug lid 55 is removed from the pipe 51 by pulling up the plug lid 55 and the support shaft 53 from the front side of the basin 100. It can be removed at once. For this reason, it is possible to improve maintenance and cleaning properties.

  Next, the movable range of the support protrusion 44 along the direction orthogonal to the rotation axis CL2 of the rotation unit 41 will be described.

  In the present embodiment, when the outer peripheral wall portion 52A is placed on the support protrusion 44, the center axis CL3 of the support protrusion 44 is rotated by the rotation portion 41 as viewed from above, as shown in FIG. A pivotable range of the pivoting portion 41 is defined so as to move within a range not exceeding the axis CL2. In this way, in order to define the rotatable range, the distance between the front contact portion 43C and the rear contact portion 43D is adjusted, and the amount of reciprocation of the rack portion 42A is adjusted, so that the rotation of the rotation portion 41 can be adjusted. The movable range is set to less than half a circle. Further, the support protrusion 44 has its center axis CL3 rotated around the rotation portion 41 when viewed from above when the rotation portion 41 is rotated in a state where the stopper lid side mechanism portion 4 is attached to the pipe 51. It is arranged at a position to move without exceeding the moving axis CL2. As a result, the support protrusion 44 has two areas AR1 and AR2 (the areas AR1 and AR2 each include the rotation axis CL2) with the center axis CL3 of the support protrusion 44 sandwiching the rotation axis CL2 when viewed from above. It moves only within the area AR1 on one side.

  Further, when the outer peripheral wall portion 52A is placed on the support protrusion 44, when the rotating portion 41 rotates, the contact portion between the support protrusion 44 and the water passage member 52 (outer peripheral wall portion 52A) is The positional relationship between the rotation portion 41 and the main body tube 51A is set so as to pass through a plane VS including the central axis CL1 of the main body tube 51A and parallel to the rotation axis CL2. In particular, in the present embodiment, the positional relationship between the rotating portion 41 and the main body pipe 51A is set so that the plane VS is positioned at the center of the movement range RA of the contact site when viewed from above.

  In the present embodiment, as described above, in the state where the case member 43 is attached to the attachment tube 51B, the case member 43 is difficult to rotate relative to the attachment tube 51B and is attached to a fixed relative position. Therefore, the movable range of the support protrusion 44 can be more reliably set to the above-described range.

  As described in detail above, according to the present embodiment, the support protrusion 44 does not reach the center (center axis CL1) of the main body pipe 51A, and the protrusion amount from the pipe 51 (main body pipe 51A) is extremely large. It is comprised so that it may become small. Therefore, it is possible to more reliably prevent foreign matters and the like from adhering to the support protrusions 44 and improve hygiene. In addition, the support protrusions 44 are less likely to become an obstacle during cleaning, and the cleaning performance can be improved.

  Further, when the outer peripheral wall portion 52A is placed on the support protrusion 44 (the water passage member 52 is supported by the support protrusion 44 and can be drained), the center of the support protrusion 44 is viewed from above. The axis CL3 moves within a range not exceeding the rotation axis CL2 of the rotation unit 41. That is, in a state where the outer peripheral wall portion 52A is placed on the support protrusion 44, the movement range of the support protrusion 44 along the direction orthogonal to the rotation axis CL2 when viewed from above is relatively small. Has been. Therefore, in the state where the water passage member 52 is supported by the support protrusion 44 and drainage is possible, the support protrusion 44 with respect to the inner peripheral surface of the pipe 51 (main body pipe 51A) accompanying the rotation of the rotation portion 41. The fluctuation range of the protrusion amount can be kept relatively small. As a result, the protrusion amount of the support protrusion 44 can ensure the stable support of the water passage member 52 (outer peripheral wall portion 52A) by the support protrusion 44, and more reliably adhere foreign matter or the like to the support protrusion 44 during drainage. It can be set to a size that can be prevented. As a result, it is possible to further improve the cleanability and hygiene while ensuring the operational stability of the drain plug device 1.

  Further, according to the present embodiment, since the central axis CL3 of the support protrusion 44 is not positioned vertically above the rotation axis CL2, the stopper lid 55 may be stepped on when the drain port 103 is opened, When a force is applied to the support protrusion 44 through the stopper lid 55 or the like, such as when a heavy object is placed on the lid 55, the rotating portion 41 can be rotated by the force. Accordingly, it is possible to prevent an excessively large force from being applied to the support protrusion 44, and it is possible to more reliably prevent the drain plug device 1 from being damaged.

  In addition, in this embodiment, the contact portion between the support protrusion 44 and the water passage member 52 (outer peripheral wall portion 52A) can pass through the plane VS when viewed from above when the rotating portion 41 rotates. ing. That is, when the water passage member 52 is supported by the support protrusion 44 and can be drained, the support protrusion 44 is supported when the support protrusion 44 moves along the direction orthogonal to the rotation axis CL2 when viewed from above. The protrusion 44 moves in a range where the fluctuation amount of the protrusion amount per unit movement amount is relatively small. Therefore, in the state where the water passage member 52 is supported by the support protrusion 44 and drainage is possible, the fluctuation range of the protrusion amount due to the rotation of the rotation portion 41 can be further reduced. As a result, the operational stability, cleanability, and hygiene of the drain plug device 1 can be further improved.

  Further, when viewed from above, the support protrusion 44 moves using the plane VS as the center of its movement range RA. Therefore, in the state where the water passage member 52 is supported by the support protrusion 44 and drainage is possible, the fluctuation range of the protrusion amount due to the rotation of the rotation portion 41 can be further reduced. As a result, the operational stability, cleanability, and hygiene of the drain plug device 1 can be further improved.

  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 said embodiment, the shape of the support protrusion 44 is not specifically limited, For example, the support protrusion may comprise cylindrical shape, prismatic shape, cross-sectional ellipse shape, etc.

  (B) In the above embodiment, when the rotating portion 41 is rotated, the contact portion between the support protrusion 44 and the water passage member 52 (outer peripheral wall portion 52A) is seen through the plane VS when viewed from above. The positional relationship between the rotating portion 41 and the main body tube 51A is set in FIG. 2, but the positional relationship between the rotating portion 41 and the main body tube 51A is set so that the contact portion does not pass through the plane VS when viewed from above. May be.

  Moreover, in the said embodiment, although the positional relationship of the rotation part 41 and 51 A of main body pipes is set so that the said plane VS may be located in the center of the movement range RA of the said contact part when it sees from upper direction. The plane VS may be set so as to be located at a position deviated from the center of the movement range RA of the contact site when viewed from above.

  (C) In the above embodiment, the pivotable range of the pivoting portion 41 is set to be less than a half circumference so that the central axis CL3 of the support protrusion 44 does not always exceed the pivoting axis CL2. In a state where the outer peripheral wall portion 52A is placed on the support protrusion 44, the center axis CL3 of the support protrusion 44 may not exceed the rotation axis CL2. Accordingly, when the rotatable range of the rotating portion 41 is set to be a half or more and the outer peripheral wall portion 52A is separated from the support protrusion 44, the center axis CL3 of the support protrusion 44 can exceed the rotation axis CL2. You may comprise as follows.

  (D) In the above embodiment, the opening 51K of the attachment pipe 51B located on the main body pipe 51A side is configured to have a circular shape when viewed from the front, but as shown in FIG. 7, the opening 51K is located on the main body pipe 51A side. The opening 51P of the mounting pipe 51B to be formed may have a shape (for example, an arc shape) corresponding to the movement range (movement region) of the support protrusion 44, and the support protrusion 44 may be inserted into the opening 51P. In this case, as compared with the above-described embodiment, the stepped portion located between the opening 51P and the rotating portion 41 of the attachment tube 51B is less likely to be exposed in the main body tube 51A (the above-mentioned in the main body tube 51A). The amount of exposure at the step can be reduced). For this reason, it is possible to prevent foreign matter from adhering to the stepped portion and to improve hygiene. In addition, the main body pipe 51A can be more easily cleaned. In particular, in the above embodiment, since the rotation axis CL2 of the rotation portion 41 and the central axis CL1 of the main body tube 51A are configured not to intersect, the area of the stepped portion is likely to be relatively large. Although there may be a slight adverse effect on the hygiene and cleaning properties due to the presence of the stepped portion, the opening 51P has a shape corresponding to the movement range of the support protrusion 44, so that the hygiene and the like can be achieved. The adverse effects on the surface can be wiped out. In other words, when the opening 51P has a shape corresponding to the movement range of the support protrusion 44, the rotation axis CL2 of the rotation unit 41 and the center axis CL1 of the main body tube 51A are configured not to intersect. Is particularly effective.

  (E) In the said embodiment, although the washbasin 100 is illustrated as a tank body, the tank body which can apply the technical idea of this invention is not limited to a washbasin. Therefore, for example, the technical idea of the present invention may be applied to a bathtub or a kitchen sink.

  (F) The configuration of the operation device 2 and the installation location in the above embodiment are merely examples. Therefore, as the operating device, instead of the displacement member that reciprocates, a device that rotates (rotates) the displacement member and operates the transmission member 31 along with the rotation (rotation) operation may be used. . Moreover, it is good also as installing an operating device in tank bodies, such as a washbasin and a bathtub, and good also as installing in the structure provided in the vicinity of the tank body.

  (G) In the above embodiment, the stopper lid 55 (packing portion 55B) is configured to close the drainage port 103 by contacting the bottom wall portion 102 (basin 100), but the stopper lid 55 (packing) The portion 55B) may be configured to close the drain port 103 by contacting a member (for example, the drain port member 57) installed in the washbasin 100.

  DESCRIPTION OF SYMBOLS 1 ... Drain plug apparatus, 4 ... Plug lid side mechanism part, 41 ... Turning part, 44 ... Supporting protrusion, 51 ... Piping, 51A ... Main body pipe, 51B ... Attachment pipe, 51P ... Opening, 52 ... Water flow member, 52A ... peripheral wall part, 53 ... support shaft, 55 ... stopper lid, 100 ... basin (tank), 103 ... drainage port, CL1 ... (main body tube) central axis, CL2 ... (rotation part) rotation axis , CL3... Central axis (of support protrusion), VS.

Claims (4)

A plug lid for opening and closing the drain of the tank body;
A support shaft for supporting the stopper lid at its upper end;
A pipe having a cylindrical main body pipe, and a cylindrical mounting pipe protruding from the outer periphery of the main body pipe and communicating with the main body pipe;
While having an annular outer peripheral wall portion arranged along the inner peripheral surface of the main body pipe, a water passing member that supports the support shaft;
The rotatable rotation part inserted through the attachment pipe, and the outer peripheral wall part is placed in a state of protruding from the rotation part into the main body pipe and opening the drain port. A stopper protrusion mechanism that has a support protrusion for supporting the water passage member, and is configured so that the support protrusion moves up and down as the rotation section rotates.
A drain plug device configured such that the tip of the support protrusion does not reach the center of the main body tube,
The rotating unit is provided at a position where the rotating shaft of the rotating unit and the central axis of the main body tube do not intersect with each other,
The support projection is configured to be separable from the outer peripheral wall portion in a state where the drain port is closed,
In a state where the outer peripheral wall portion is placed on the support projection, the rotation is performed so that the center axis of the support projection moves within a range not exceeding the rotation axis of the rotation portion when viewed from above. A drain plug device characterized in that a pivotable range of the moving part is defined.   The drain plug according to claim 1, wherein a contact portion between the support protrusion and the water passage member is configured to be able to pass through a plane including the central axis of the main body pipe and parallel to the rotation axis. apparatus.   The drain plug device according to claim 2, wherein the flat surface is positioned at the center of the movement range of the contact portion when viewed from above.   The opening of the attachment pipe located on the main body pipe side has a shape corresponding to the movement range of the support protrusion, and the support protrusion is inserted therethrough. The drain plug device according to item.

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