JPWO2017038206A1 - Drain plug device - Google Patents

Abstract

  The drain plug device (1) includes a plug lid (55) for opening and closing the drain port (104), and an outer peripheral wall disposed along the inner peripheral surface of the pipe (52) in the drain pipe (52). A water passage member (53) that has a portion (531) and supports the stopper lid (55), and protrudes into the pipe (52), and the outer peripheral wall portion (531) is placed on the water passage member (53). ) And a cap lid side mechanism portion (4) having a support projection (44) for supporting. As the support protrusion (44) moves up and down, the water passing member (53) moves up and down. The water flow member (53) includes an inclination suppression mechanism, and the inclination suppression mechanism suppresses the inclination of the outer peripheral wall portion (531) with respect to the central axis (CL1) of the pipe (52). As a result, the inclination of the stopper lid (53) can be more reliably suppressed, and good aesthetics and water tightness can be obtained.

Description

  The present invention relates to a drain plug device provided with a plug lid for opening and closing a drain port 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, it has a rotatable turning part, a support protrusion protruding from the turning part into the pipe, and an annular outer peripheral wall part arranged along the inner peripheral surface of the pipe. A drainage plug device that includes a water-permeable member that directly or indirectly supports a lid, and that supports the plug lid and the like by the support protrusion by placing the outer peripheral wall portion on the support protrusion. (For example, see Patent Document 2). In the technology described in the patent document, the support protrusion moves up and down as the rotation unit rotates, so that the water passage member and thus the plug lid move up and down, and the drain opening is opened and closed. Become. In addition, an annular hair catcher is provided coaxially with the outer peripheral wall portion above the outer peripheral wall portion, and when the hair catcher comes into contact with the tank body or the like, the outer peripheral wall portion (water-permeable member) and thus the plug The tilt of the lid is prevented.

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

  By the way, there is a case where it is desired to set the distance from the surface of the tank body to the supporting protrusion relatively small due to the installation space. In this case, it is conceivable that a hair catcher is not provided. However, if a hair catcher is not provided, the outer peripheral wall portion can be said to be cantilevered by the support protrusion when the outer peripheral wall portion is viewed from the side. It becomes a state. Therefore, when the support protrusion moves upward and lifts the outer peripheral wall portion, the position of the outer peripheral wall portion sandwiching the central axis of the outer peripheral wall portion with the portion supported by the support protrusion (supported portion) There exists a possibility that the site | part (opposing part) in may fall rather than a to-be-supported part. When the facing part is lowered below the supported part in this way, the outer peripheral wall part (for example, the surface constituting the central axis of the outer peripheral wall part or the outer peripheral wall part) is inclined with respect to the central axis of the pipe from the normal time. As a result, the stopper lid is inclined. If the stopper lid is tilted, the aesthetic appearance when the drain opening is opened may be reduced. Also, if the drain outlet is closed with the stopper lid tilted, the center of the part (sealed part) that is sealed by the stopper lid when the drain outlet is closed in the tank body and the center axis of the stopper lid. There is a possibility that a deviation occurs, and as a result, the water tightness is lowered.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drain plug device configured to support an outer peripheral wall portion by a support protrusion and to move a water passage member up and down by the vertical movement of the support protrusion. Is to more reliably suppress the inclination of the stopper lid and obtain good aesthetics and water tightness.

  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 drainage pipe that has an outer peripheral wall portion disposed along the inner peripheral surface of the pipe in the drainage pipe, and a water passage member that directly or indirectly supports the stopper lid;
Projecting into the pipe and having the outer peripheral wall portion mounted in a state where the drainage port is opened, and having a support protrusion for supporting the water flow member, and at least the water flow member among the support protrusions is supported. And a stopper lid side mechanism configured to move the water passage member up and down by moving the part to move up and down,
The water flow member is a drain plug device configured to be removable from the pipe by being pulled up,
The drain plug device, wherein the water passage member includes an inclination suppressing mechanism that suppresses an inclination of the outer peripheral wall portion with respect to a central axis of the pipe.

  According to the said means 1, it can suppress that an outer peripheral wall part inclines with respect to the center axis | shaft of piping by the inclination suppression mechanism with which the water flow member itself is provided. Therefore, it is possible to more reliably prevent the plug lid from being inclined when the drain port is opened. As a result, a good aesthetic appearance can be obtained when the drain outlet is opened. Moreover, when the drainage port is opened, it is possible to effectively suppress the axial deviation between the center of the sealed portion such as the tank body and the center axis of the stopper lid. Thereby, favorable water tightness can be obtained when the drain outlet is closed.

  Mean 2. The drain plug device according to means 1, wherein at least a part of the tilt suppressing mechanism is constituted by an outer peripheral surface of the water passage member.

  According to the said means 2, when an outer peripheral wall part is lifted by a support protrusion, the inclination of an outer peripheral wall part can be suppressed because the outer peripheral surface of a water flow member contacts piping etc. Thereby, the inclination of a stopper lid can be suppressed and favorable aesthetics and watertightness can be obtained.

  In the meantime, for example, when the outer peripheral wall is lifted by the support protrusion and the water passage member is inclined, the means 2 is arranged so that the outer peripheral surface of the water passage member contacts the pipe or the like when the inclination is small. It is realizable by comprising. More specifically, it is realized by adjusting the length of the water passage member in consideration of the allowable inclination of the water passage member and the size of the gap formed between the water passage member and the piping. can do.

Means 3. The outer peripheral wall portion includes a leg portion extending downward from a portion in contact with the support protrusion,
The drain plug device according to means 1 or 2, wherein at least a part of the tilt suppressing mechanism is constituted by the leg portion.

  According to the above means 3, when the support protrusion moves upward and lifts the outer peripheral wall portion, the leg portion comes into contact with the pipe when the inclination of the outer peripheral wall portion is small. The above inclination can be suppressed. Thereby, the inclination of the stopper lid can be effectively suppressed, and better aesthetics and water tightness can be obtained.

  Means 4. The drain plug device according to means 3, wherein the leg portion is disposed along an inner peripheral surface of the pipe.

  According to the said means 4, a leg part is arrange | positioned along the internal peripheral surface of piping. That is, the leg portion is arranged in a state where the outer surface thereof is close to the inner peripheral surface of the pipe. Therefore, the leg portion can be brought into contact with the pipe when the inclination of the outer peripheral wall portion is smaller, and the inclination of the outer peripheral wall portion can be effectively suppressed. Thereby, the inclination of a stopper lid can be suppressed more effectively and much more beautiful aesthetics and water tightness can be obtained.

Means 5. The outer peripheral wall portion is annular,
The drain plug device according to means 3 or 4, wherein a plurality of the leg portions are provided at equal intervals along the circumferential direction of the outer peripheral wall portion.

  According to the means 5, even if the water passage member rotates relative to the pipe, the effect of the means 3 and the like can be reliably exhibited. In addition, in the water flow member, even if the cause of the inclination other than the vertical movement of the support protrusion (for example, an external force transmitted through the stopper lid, etc.) occurs, the inclination of the outer peripheral wall portion and the stopper lid can be reduced. It can be suppressed very effectively.

  Means 6. The drain plug device according to any one of means 3 to 5, wherein the leg portion is provided at a position adjacent to the support protrusion along the circumferential direction of the pipe.

  According to the above means 6, when the support protrusion moves upward and lifts the outer peripheral wall portion, the leg portion adjacent to the support protrusion comes into contact with the pipe, thereby suppressing the inclination of the outer peripheral wall portion more effectively. Can do. As a result, the inclination of the stopper lid can be more effectively suppressed.

  Mean 7 The drain plug device according to any one of means 3 to 6, wherein the leg portion is located vertically below the support protrusion around the support protrusion.

  According to the above means 7, when the support protrusion moves upward and lifts the outer peripheral wall portion, the portion of the leg portion that is positioned vertically below the support protrusion comes into contact with the pipe, so that the outer peripheral wall portion and thus the plug lid The tilt can be suppressed very effectively.

Means 8. The outer peripheral wall portion has an annular body portion that contacts the support protrusion,
The leg portion extends downward from the lower portion of the trunk portion,
The sum of the length of the leg portion along the central axis of the outer peripheral wall portion and the length of the trunk portion along the central axis of the outer peripheral wall portion is made larger than the outer diameter of the outer peripheral wall portion. The drain plug device according to any one of means 3 to 7, characterized in that:

  Note that “the central axis of the outer peripheral wall portion” can be said to be “the central axis of the body portion” in other words.

  According to the means 8, when the inclination of the outer peripheral wall portion is very small, the leg portion and / or the trunk portion comes into contact with the pipe, and further inclination of the outer peripheral wall portion can be suppressed. Thereby, the more outstanding aesthetics and watertightness can be obtained.

Means 9. The outer peripheral wall portion includes a rib portion formed to protrude radially outward,
The drain plug device according to any one of means 1 to 8, wherein at least a part of the tilt suppressing mechanism is constituted by the rib portion.

  According to the means 9, the gap between the outer peripheral wall portion (rib portion) and the pipe can be further reduced by the rib portion. Therefore, when the outer peripheral wall portion is slightly inclined, the outer peripheral wall portion (rib portion) comes into contact with the pipe or a member provided coaxially with this, and further inclination of the outer peripheral wall portion is suppressed. Can do. As a result, the inclination of the stopper lid can be further suppressed, and better aesthetics and water tightness can be obtained.

  Also, by simply increasing the outer diameter of the outer peripheral wall portion, when the support protrusion moves up and down compared to the case where the gap between the outer peripheral wall portion and the pipe is reduced, the pipe and the outer peripheral wall portion Sliding resistance can be reduced. Further, it is difficult for foreign matter to be caught between the pipe and the outer peripheral wall when the support protrusion moves up and down. As a result, the water passage member (outer peripheral wall) can be smoothly moved along the inner peripheral surface of the pipe. That is, according to the means 9, it is possible to prevent the operability from being lowered while suppressing the inclination of the stopper lid.

  In addition, since a rib part comprises a part of outer peripheral surface of a water flow member, the inclination suppression mechanism is comprised by the rib part means that the inclination suppression mechanism is comprised by the outer peripheral surface of a water flow member. be able to. That is, configuring the tilt suppression mechanism with the outer peripheral surface of the water passage member includes configuring the tilt suppression mechanism with the rib portion.

  Means 10. The drain plug device according to claim 9, wherein the rib portion is provided on at least the uppermost portion of the outer peripheral wall portion.

  According to the means 10, the rib portion can be brought into contact with the pipe or the like when the inclination of the outer peripheral wall portion is very small. Thereby, the inclination of a stopper lid can be suppressed very effectively and very excellent aesthetics and water tightness can be obtained.

  Means 11. The drain plug device according to claim 9, wherein the rib portion is provided at least at a lowermost portion of the outer peripheral wall portion.

  According to the means 11, like the means 10, the inclination of the stopper lid can be suppressed very effectively, and a very good aesthetic appearance and water tightness can be obtained.

  Means 12. The drain plug device according to any one of means 9 to 11, wherein the rib portion is provided in the vicinity of the support protrusion along the circumferential direction of the pipe.

  According to the above means 12, when the outer peripheral wall portion is lifted by the support protrusion, the rib portion disposed in the vicinity of the support protrusion comes into contact with the pipe or the like, thereby further effectively suppressing the inclination of the outer peripheral wall portion. can do. As a result, the inclination of the stopper lid can be more effectively suppressed.

  Means 13. The drain plug device according to any one of means 9 to 12, wherein the rib portion is provided at a position vertically below the support protrusion.

  According to the means 13, when the outer peripheral wall portion is lifted by the support protrusion, the rib portion positioned vertically below the support protrusion comes into contact with the pipe or the like, thereby further increasing the inclination of the outer peripheral wall portion and thus the plug lid. It can be effectively suppressed.

Means 14. The outer peripheral wall portion is annular,
The drain plug device according to any one of means 9 to 13, wherein three or more rib portions are provided at equal intervals along the circumferential direction of the outer peripheral wall portion.

  According to the means 14, even if the water passage member rotates relative to the pipe, the effects of the means 9 and the like can be reliably exhibited. In addition, in the water flow member, even if the cause of the inclination other than the vertical movement of the support protrusion (for example, an external force transmitted through the stopper lid, etc.) occurs, the inclination of the outer peripheral wall portion and the stopper lid can be reduced. It can be suppressed very effectively.

  Means 15. The drain plug device according to any one of means 9 to 14, wherein the rib portion forms a ridge extending from an upper end to a lower end of the outer peripheral wall portion.

  According to the means 15, the rib portion comes into contact with the pipe or the like when the inclination of the outer peripheral wall portion is smaller. Therefore, the inclination of the stopper lid can be more effectively suppressed, and better watertightness can be obtained.

Means 16. The outer peripheral wall portion opens vertically downward or vertically downward, has an arrangement space in which the support protrusion is arranged, and a locking portion that forms the arrangement space,
In the state in which the support protrusion is disposed in the arrangement space, the locking portion is configured to be locked to the support protrusion along a vertical direction vertically below the support protrusion. The drain plug device according to any one of means 1 to 15.

  According to the means 16, it is possible to more reliably prevent a situation in which the stopper lid pops upward when the support protrusion is moved up vigorously. As a result, safety and usability can be improved.

  Further, according to the means 16, when the water passage member and the support protrusion are not properly assembled, that is, the support protrusion is not disposed in the arrangement space, and the locking portion is placed on the support protrusion. When it is, the stopper lid floats more than normal. Therefore, it can be easily recognized that an erroneous assembly has occurred.

  Means 17. In the state where the outer peripheral wall portion is arranged in the pipe, the length of the arrangement space along the vertical direction is made larger than the thickness of the support protrusion along the vertical direction. 16. A drain plug device according to 16.

  According to the means 17, when the water passage member and the support protrusion are not in the proper assembled state, the stopper lid is further floated than normal. For this reason, it can be recognized more easily that erroneous assembly has occurred.

Means 18. A support shaft supported by the water-permeable member inside the outer peripheral wall,
The water flow member indirectly supports the stopper lid via the support shaft,
The support shaft is
A rod-like portion that supports the stopper lid at the upper end;
A cylindrical outer tube portion that accommodates the rod-like portion in a reciprocable manner inside itself; and
A bottom lid portion that closes a lower end side opening of the outer cylinder portion;
A shock absorber spring disposed between the rod-shaped portion and the bottom lid portion in the outer cylinder portion;
The means according to any one of means 1 to 17, wherein the shock absorber spring is configured to be compressively deformable when a downward force is applied to the stopper lid when the drain port is opened. Drain plug device.

  According to the above means 18, the shock absorber spring is compressed and deformed when the stopper lid or the like is stepped on or when a heavy object is placed on the stopper lid when the drain opening is opened. The load applied to the protrusion can be reduced. Thereby, damage to a support protrusion or a member that supports the support protrusion can be prevented more reliably, and the durability of the apparatus can be further improved.

Means 19. The plug lid side mechanism portion has a rotatable rotation portion,
The support protrusion protrudes into the pipe from the end surface of the rotating part, and is configured to move up and down by the rotation of the rotating part,
The drain plug device according to claim 18, wherein the support protrusion can be arranged vertically above the rotation axis of the rotation portion.

  In the case where the support protrusion is arranged vertically above the rotation axis of the rotation part, if a downward force is applied to the plug cover by stepping on the plug cover, the support protrusion The force mainly along the radial direction of the rotating part is applied, and the force along the circumferential direction of the rotating part is hardly applied. For this reason, it is difficult for the rotating portion to rotate so that the supporting protrusion escapes from the force due to the applied force, and a large load is applied to the supporting protrusion, the rotating portion, and the like. As a result, there is a risk that the support protrusions and the like are damaged. Therefore, by configuring the support protrusion so that it is not disposed vertically above the rotation axis of the rotation unit, when a downward force is applied to the plug lid, the support protrusion is forced by the applied force. It is conceivable that the rotating portion can be rotated so as to escape from the position. However, in this case, the amount of vertical movement of the support protrusion, and hence the lift amount of the plug lid, becomes small, which may be slightly disadvantageous in terms of drainage performance. In addition, it is conceivable that the rotation part is configured to be very easy to rotate so that the support protrusion can easily escape from the force, but in this case, the rotation part is not intended to rotate with a slight force. There is a risk of it.

  In this respect, according to the means 19, since the support protrusion can be arranged vertically above the rotation shaft of the rotation portion, the amount of vertical movement of the support protrusion and hence the lift amount of the plug lid can be maximized. . Therefore, very excellent drainage performance can be realized.

  On the other hand, by making it possible to dispose the support protrusion vertically above the rotation axis of the rotation part, there is a concern about damage to the support protrusion when force is applied to the stopper lid. The load applied to the support protrusion and the like by the shock absorber spring can be reduced, and damage to the support protrusion and the like can be more reliably prevented.

  In addition, when the support protrusion is disposed vertically above the rotation axis of the rotation unit, the rotation of the rotation unit hardly occurs even when a downward force is applied to the plug lid. Become. Therefore, unintentional rotation of the rotating part and eventually unintentional closing of the drain outlet when the stopper lid is accidentally stepped on can be more reliably prevented.

It is sectional drawing which shows structures, such as a drain port apparatus. It is sectional drawing which shows the structure of an operating device etc. It is a disassembled perspective view which shows the structure of the stopper lid side mechanism part. It is an enlarged front view of the support protrusion etc. for demonstrating the rotation range of a support protrusion. It is a perspective view which shows the structure of a water flow member. It is a partial expanded development view of a water flow member. It is a cross-sectional schematic diagram of a water flow member etc. for demonstrating the calculation method of the length of the trunk | drum required in order to implement | achieve an inclination suppression mechanism with the outer peripheral surface of a water flow member. It is a perspective view which shows the structure of the water flow member in another embodiment. It is a perspective view which shows the structure of the water flow member in another embodiment. It is the elements on larger scale of the water-permeable member which shows the structure of the leg part in another embodiment, or a rib part. It is the elements on larger scale of the water flow member which shows the composition of the arrangement space in another embodiment. It is the elements on larger scale of the water-permeable member which shows another example of arrangement space. It is the elements on larger scale of the water-permeable member which shows the structure of the leg part in another embodiment, or a rib part. It is sectional drawing of the drain port apparatus etc. for showing the structure of the leg part in another embodiment. It is a bottom view of the water flow member for showing the composition of the leg in another embodiment. It is sectional drawing of the drain port apparatus etc. for showing the structure of the leg part in another embodiment. It is sectional drawing of the drain port apparatus etc. for showing the structure of the leg part in another embodiment. It is a bottom view of the water flow member for showing the composition of the leg in another embodiment. It is sectional drawing, such as a drain port apparatus for showing the structure of the water flow member in another embodiment. It is a perspective view of a water flow member etc. in another embodiment.

  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. The washbasin 100 includes a bottom wall portion 101 that constitutes a bottom portion thereof. The bottom wall portion 101 includes a cylindrical standing portion 102 that extends in the vertical direction and a lower end of the standing portion 102. An annular projecting portion 103 that protrudes inward in the radial direction is formed. A drain port 104 is formed on the inner periphery of the overhang portion 103.

  As shown in FIG. 2, the operating device 2 can reciprocate on a cylindrical guide portion 21 attached to a wall-like back guard 105 provided in the vicinity of the washbasin 100, and on the inner periphery of the guide portion 21. And an operation member 22 disposed on the surface. One end of the operation member 22 is attached to the other end of a transmission member 31 (to be described later) of the release wire 3.

  Further, an operation-side bending guide member 23 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 23. 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 a resin 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 operation member 22 reciprocates.

  Returning to FIG. 1, the stopper lid side mechanism portion 4 is attached to a pipe 52 described later of the drain port device 5. Further, as shown in FIGS. 1 and 3, the plug lid side mechanism unit 4 is connected to a rotatable rotating unit 41 and one end of the transmission member 31, and the reciprocating motion of the transmission member 31 is rotated. The moving direction converting part 42 for converting to a moving direction and the moving direction converting part 42 are housed inside and a case member 43 attached to the pipe 52 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 52B described later of the pipe 52. Moreover, the rotation part 41 has the rod-shaped support protrusion 44 which protrudes in the piping 52 (main body pipe | tube 52A) in the outer peripheral side of the end surface located in the internal space side of the main body pipe | tube 52A mentioned later of the piping 52. As shown in FIG. .

  The support protrusion 44 has a columnar shape and is relatively short so that the tip thereof does not reach the central axis CL1 of the pipe 52 (main body pipe 52A). Further, as the rotating portion 41 rotates, the support protrusion 44 moves up and down while rotating. Further, in the present embodiment, the support protrusion 44 can be arranged vertically above the rotation axis CL2 of the rotation unit 41 by defining the rotation range of the rotation unit 41 within a predetermined range. (See FIG. 4).

  The movement direction conversion part 42 includes a rack part 42 </ b> A to which one end of the transmission member 31 is connected, a rotatable gear part 42 </ b> B that is meshed with the rack part 42 </ b> A and provided coaxially with the rotation part 41. It has. When the transmission member 31 reciprocates, the rack portion 42A reciprocates in the case member 43 to rotate the gear portion 42B, and the rotation portion 41 rotates by the rotation of the gear portion 42B. 44 moves up and down while rotating.

  The case member 43 includes a front-side contact portion 43A and a rear-side contact portion 43B at a portion where the rack portion 42A is accommodated so as to sandwich the front and rear in the reciprocating direction of the rack portion 42A. 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 43A, so that further forward movement of the rack portion 42A is restricted, and thus 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 43B, so that further backward movement of the rack portion 42A is restricted, and as a result Further rotation of the moving part 41 is restricted. That is, in the present embodiment, the rotatable range of the turning portion 41 is defined as a predetermined range by the front contact portion 43A and the rear contact portion 43B.

  In addition, a plurality of claw portions 43C extending in parallel with the rotation portion 41 are provided on the surface of the case member 43 on the protruding side of the rotation portion 41, and the stopper lid side mechanism portion is provided by the claw portions 43C. 4 is attached to the pipe 52 (attachment pipe 52B).

  Further, a tubular lid cover side guide member 45 is attached to the outlet portion of the release wire 3 in the case member 43. One end of the tube member 32 is held inside the stopper cover side guide member 45.

  Returning to FIG. 1, the drain port device 5 includes a drain port member 51, a pipe 52, a water passage member 53, a support shaft 54, and a plug lid 55.

  The drain port member 51 is formed in a cylindrical shape, and is inserted into the drain port 104 so that its own central axis and the central axis of the drain port 104 substantially coincide with each other. In addition, the drain port member 51 includes a flange-like flange portion 51A that protrudes radially outward at the upper end portion thereof, and a male screw portion 51B that is formed on the outer periphery on the lower side of the flange portion 51A. .

  The pipe 52 includes a cylindrical main body pipe 52A and a cylindrical attachment pipe 52B branched from the main body pipe 52A.

  The main body tube 52A includes a female screw portion 52C that extends along the vertical direction and can be screwed into the male screw portion 51B on the inner periphery of one end portion (upper end portion) thereof. Then, with the flange portion 51A disposed on the overhang portion 103, the male screw portion 51B is screwed into the female screw portion 52C, and the overhang portion 103 is sandwiched between the upper end surfaces of the flange portion 51A and the main body pipe 52A. The pipe 52 is connected to the drain port member 51 and attached to the basin 100.

  In the present embodiment, an annular seal member 57 formed of an elastically deformable material is interposed between the upper end surface of the pipe 52 and the washbasin 100, and the drainage port is provided by the seal member 57. Water leakage from between the member 51 and the pipe 52 and the basin 100 is prevented.

  The attachment pipe 52B is formed to project from the outer periphery of the main body pipe 52A in the horizontal direction, and its own internal space communicates with the internal space of the main body pipe 52A. A pair of mounting holes (not shown) that are rotationally symmetric with respect to the central axis of the mounting pipe 52B are formed through the end of the mounting pipe 52B that is located on the opposite side of the main body pipe 52A. . Then, after the claw portion 43C is inserted into the attachment hole portion, the claw portion 43C is locked to the attachment tube 52B, so that the stopper lid side mechanism portion 4 is attached to the attachment tube 52B. Yes.

  The water passage member 53 is disposed so as to be vertically movable in the pipe 52 (main body pipe 52A), and has an annular outer peripheral wall portion 531 and an arm portion 53A extending from the inner periphery of the outer peripheral wall portion 531 along the radial direction thereof. (See FIG. 5).

  The outer peripheral wall portion 531 is disposed in the pipe 52 (main body pipe 52A) so as to be along the inner peripheral surface of the pipe 52 (main body pipe 52A). The outer peripheral wall portion 531 is placed on the support protrusion 44, so that the water passage member 53 is supported by the support protrusion 44 in the pipe 52 (main body pipe 52 </ b> A). However, in the state where the support protrusion 44 is disposed at the lowest position, the support protrusion 44 is separated from the lower end surface of the outer peripheral wall portion 531. The configuration of the water passage member 53 will be described in detail later.

  The support shaft 54 is provided coaxially with the outer peripheral wall portion 531 inside the outer peripheral wall portion 531. The support shaft 54 includes a rod-shaped part 54A, an outer cylinder part 54B, a bottom cover part 54C, and a shock absorber spring 54D.

  The rod-shaped portion 54 </ b> A has a rod shape extending in the vertical direction, and the upper end portion of the rod-shaped portion 54 </ b> A is attached to the back center portion of the plug lid 55 to support the plug lid 55. Further, the lower end portion of the rod-like portion 54A has a hook shape protruding outward in the radial direction.

  The outer cylinder portion 54B has a cylindrical shape, and accommodates the rod-like portion 54A in a reciprocable state inside itself. Further, the upper end portion of the outer cylindrical portion 54B has a bent shape that protrudes radially inward, and the flange-shaped portion of the rod-shaped portion 54A comes into contact with the bent portion, so that the outer cylindrical portion 54B The rod-shaped portion 54A is prevented from coming off. In addition, the innermost peripheral portion of the arm portion 53A of the water passage member 53 is connected to the outer periphery of the outer cylindrical portion 54B (see FIG. 5). Thereby, the outer cylinder part 54 </ b> B and the support shaft 54 are in a state of being supported by the water passage member 53 inside the outer peripheral wall part 531.

  The bottom lid portion 54C has a disk shape and is fixed to the outer cylinder portion 54B in a state of being inserted into the lower end side opening of the outer cylinder portion 54B. The lower end side opening of the outer cylinder portion 54B is closed by the bottom lid portion 54C.

  The shock absorber spring 54 </ b> D is configured by spirally winding a predetermined metal wire, and can be elastically deformed along the longitudinal direction of the support shaft 54. The shock absorber spring 54D is sandwiched between the flange-shaped portion of the rod-shaped portion 54A and the bottom lid portion 54C inside the outer cylinder portion 54B, and is compressed more than its natural length. . In a normal state (a state in which no special external force is applied to the plug lid 55 or the like), the distance between the bar-shaped portion of the rod-shaped portion 54A and the bottom lid portion 54C is ensured to the maximum. Yes.

  The plug lid 55 includes a disk-shaped plug lid main body portion 55A made of resin or the like, and a packing portion 55B attached to the plug lid main body portion 55A.

  The plug lid body portion 55A is provided substantially coaxially with the drain port member 51, and includes a cylindrical portion 55C extending downward on the outer peripheral side of the back surface thereof. And the said packing part 55B is engage | inserted with respect to the outer periphery of the said cylindrical part 55C.

  The packing portion 55B is formed in an annular shape from an elastically deformable material (for example, rubber or resin). When the support protrusion 44 is moved downward along with the displacement of the operation member 22, the stopper lid 55 is moved down together with the water passing member 53 and the support shaft 54, and the entire outer peripheral portion of the packing portion 55 </ b> B contacts the bottom wall portion 101. By doing so, the drain port 104 is closed. On the other hand, when the support protrusion 44 is moved upward along with the displacement of the operation member 22, the stopper lid 55 is moved upward together with the water passing member 53 and the support shaft 54, and the packing portion 55 </ b> B is separated from the bottom wall portion 101. Thus, the drain port 104 is opened.

  Further, in this embodiment, the support protrusion 44 is in contact with the outer peripheral wall portion 531 when the drain port 104 is opened, but the support protrusion 44 is separated from the outer peripheral wall portion 531 when the drain port 104 is closed. It has become. Thereby, when the drain outlet 104 is closed, the packing part 55B can be reliably brought into contact with the bottom wall part 101, and good water tightness can be obtained.

  Furthermore, in the present embodiment, when the drain port 104 is opened, for example, when a downward force is applied to the plug lid 55 by placing a heavy object on the plug lid 55, the shock absorber The spring 54D is compressed and deformed.

  In addition, in this embodiment, the unit 58 including the water passage member 53, the support shaft 54, and the plug lid 55 is removed from the pipe 52 at a time by pulling up the plug lid 55 and the support shaft 54 from the front side of the basin 100. Can be done. When the unit 58 is removed from the pipe 52, only the support protrusion 44 protrudes slightly in the pipe 52 (main body pipe 52A). For this reason, it is possible to improve maintenance and cleaning properties.

  Next, the configuration of the water passage member 53 will be described. In the present embodiment, the water passing member 53 has the outer peripheral wall portion 531 as described above, and the outer peripheral wall portion 531 has a plurality of body portions 532 and a plurality of body portions 532 as shown in FIGS. A leg portion 533 and a rib portion 534 are provided.

  The trunk portion 532 has a cylindrical shape, and the support protrusion 44 contacts the lower surface of the drain port 104 when the drain port 104 is opened. Further, in the state where the trunk portion 532 is arranged coaxially with the pipe 52 (main body pipe 52A), a little (for example, between the outer peripheral surface of the pipe 52 (main body pipe 52A) and the inner peripheral surface of the drain port member 51 (for example, A gap of about 1 mm) is formed.

  Furthermore, in this embodiment, the outer peripheral surface of the trunk | drum 532 (water flow member 53) comprises a part of inclination suppression mechanism which suppresses the inclination of the outer peripheral wall part 531 with respect to the central axis CL1 of the piping 52 (main body pipe | tube 52A). doing. More specifically, it is formed between the outer peripheral surface of the trunk portion 532 and the inner peripheral surface of the pipe 52 (main body pipe 52A) and the drain port member 51 in a state where the trunk portion 532 and the pipe 52 (main body pipe 52A) are coaxial. And the inclination of the outer peripheral wall portion 531 with respect to the central axis CL1 of the pipe 52 (main body pipe 52A) (for example, when the outer peripheral wall portion 531 has an annular shape as in this embodiment, the central axis CL1 In consideration of the allowable value of the inclination of the central axis CL3 of the outer peripheral wall portion 531), the outer peripheral wall portion 531 is inclined with the upward movement of the support protrusion 44 under the assumption that the leg portion 533 and the rib portion 534 are not present. Sometimes, the axial direction of the trunk portion 532 is such that the outer peripheral surface of the trunk portion 532 is in contact with the inner periphery of the pipe 52 (main body pipe 52A) or the drain port member 51 when the inclination is equal to or less than the allowable value. The length along the To have.

  Note that at least a part of the tilt suppression mechanism is configured by the outer peripheral surface of the trunk portion 532 (water passage member 53), for example, as shown in FIG. The size of the gap formed between the outer peripheral surface of the body portion 532 (particularly the upper portion of the outer peripheral surface) and the pipe 52 (main body pipe 52A) or the inner peripheral surface of the drain port member 51 is defined as r (mm). When the value is θ (°), the length L (mm) of the body portion 532 can be set to r / sin θ or more. For example, when r is 1 mm and the tolerance is 3 °, the length L of the body portion 532 is set to about 19.13 mm or more, so that the outer peripheral surface of the body portion 532 (water passage member 53). Thus, at least a part of the tilt suppression mechanism can be configured. The permissible value can be appropriately set according to various requirements, but is set to, for example, 5 ° or less (more preferably 3 ° or less).

  Returning to FIGS. 5 and 6, the leg portion 533 extends in a direction parallel to the central axis of the body portion 532 from the lower portion of the body portion 532 toward a lower side than a portion of the body portion 532 that contacts the support protrusion 44. It extends. A plurality of leg portions 533 are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531.

  Furthermore, the leg portion 533 has a shape that is curved in a cross section orthogonal to the central axis CL3 of the outer peripheral wall portion 531, and is disposed along the inner peripheral surface of the pipe 52 (main body pipe 52A). And the clearance gap between the outer peripheral surface of the leg part 533 and the inner peripheral surface of the piping 52 (main body pipe | tube 52A) is a comparatively small thing (for example, about 1 mm). Therefore, when the outer peripheral wall portion 531 tilts with the operation of the support protrusion 44, the leg portion 533 can come into contact with the pipe 52 (main body tube 52A) when the tilt is small. Accordingly, in the present embodiment, the leg portion 533 constitutes a part of the tilt suppression mechanism.

  Further, the length of the leg portion 533 along the central axis CL3 (the central axis of the trunk portion 532) of the outer peripheral wall portion 531, and the length of the trunk portion 532 along the central axis CL3 (the central axis of the trunk portion 532). Is larger than the outer diameter of the outer peripheral wall portion 531. In the present embodiment, the length of the leg portion 533 along the central axis CL3 is larger than the outer diameter of the outer peripheral wall portion 531. When the rib portion 534 is present as in the present embodiment, the outer diameter of the outer peripheral wall portion 531 is located on the central axis CL3 of the outer peripheral wall portion 531 and the outermost outer periphery of the rib portion 534. It can be said that the outer diameter of the virtual circle in contact with the part. Further, when the rib portion 534 does not exist, the outer diameter of the outer peripheral wall portion 531 can be said to be the outer diameter of the body portion 532.

  Further, the leg portion 533 constitutes an edge portion on one side along the width direction (along the circumferential direction of the outer peripheral wall portion 531), and the first inclined portion 533A is inclined with respect to the circumferential direction of the outer peripheral wall portion 531. And the other side edge portion along the width direction, the second inclined portion 533B inclined in the opposite direction to the first inclined portion 533A, and the two inclined portions 533A, 533B, and rounded. And a curved top portion 533C. Therefore, even if the water passage member 53 is inserted into the pipe 52 (main body pipe 52A) with the inclined portions 533A, 533B and the top portion 533C positioned vertically above the support protrusion 44, the inclined portion 533A is inserted. , 533B and the top portion 533C come into contact with the support protrusion 44, so that the water passing member 53 rotates, and as a result, the support protrusion 44 can be disposed almost certainly between the adjacent leg portions 533. .

  Furthermore, the interval between the adjacent leg portions 533 along the circumferential direction of the outer peripheral wall portion 531 is not so large, and the leg portions 533 are arranged in the circumferential direction of the outer peripheral wall portion 531 [pipe 52 (main body pipe 52A). In the circumferential direction] and is adjacent to the support protrusion 44.

  The rib portion 534 protrudes radially outward from the outer peripheral surface of the body portion 532, and three or more (six in this embodiment) are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531. Yes. In addition, when the outer peripheral wall portion 531 is inclined with the operation of the support protrusion 44, the rib portion 534 can come into contact with the pipe 52 (main body pipe 52A) and the drain port member 51 when the inclination is small. . Accordingly, in the present embodiment, the rib portion 534 constitutes a part of the tilt suppression mechanism. In the present embodiment, the tilt suppressing mechanism is constituted by the outer peripheral surface of the water passage member 53 (the trunk portion 532), the leg portion 533, and the rib portion 534.

  Further, the rib portion 534 has a ridge extending in parallel with the central axis CL3 of the outer peripheral wall portion 531, and is provided over the entire region along the direction of the central axis CL3 of the outer peripheral wall portion 531. That is, the rib portion 534 forms a ridge extending from the upper end to the lower end of the outer peripheral wall portion 531. Therefore, in this embodiment, the rib part 534 is the state provided with respect to the uppermost part and the lowest part of the outer peripheral wall part 531, respectively.

  As described above in detail, according to the present embodiment, the outer peripheral wall portion 531 (in the present embodiment, the outer peripheral wall portion 531) is provided by the inclination suppressing mechanism including the outer peripheral surface of the water passage member 53, the leg portion 533 and the rib portion 534. Can be very effectively suppressed from being inclined with respect to the central axis CL1 of the pipe 52. Accordingly, it is possible to more reliably prevent the plug lid 55 from being inclined when the drain port 104 is opened. As a result, a good aesthetic appearance can be obtained when the drainage port 104 is opened. In addition, when the drain port 104 is opened, the axial displacement between the center of the bottom wall portion 101 that contacts the plug lid 55 (sealed portion) when the drain port 104 is closed and the central axis of the plug lid 55 is effective. Can be suppressed. Thereby, good water tightness can be obtained when the drainage port 104 is closed. In particular, in the present embodiment, since the leg portion 533 is disposed along the inner peripheral surface of the pipe 52 (main body pipe 52A), it is possible to more effectively suppress the inclination of the plug lid 55.

  A plurality of leg portions 533 are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531, and three or more rib portions 534 are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531. Therefore, even if the water passage member 53 rotates relative to the pipe 52 (main body pipe 52A), the inclination of the plug lid 55 can be effectively suppressed, and a better aesthetic appearance and water tightness can be obtained. be able to. Further, even in the case where an inclination generation factor (for example, an external force transmitted through the plug lid 55 or the like) other than the vertical movement of the support protrusion 44 occurs in the water passage member 53, the outer peripheral wall portion 531 and the plug are thus plugged. The tilt of the lid 55 can be suppressed very effectively.

  In addition, since the leg portion 533 is provided at a position adjacent to the support protrusion 44 along the circumferential direction of the pipe 52 (main body pipe 52A), when the support protrusion 44 moves upward to lift the outer peripheral wall portion 531, Since the leg part 533 adjacent to the support protrusion 44 contacts the pipe 52, the inclination of the outer peripheral wall part 531 can be more effectively suppressed. As a result, the inclination of the plug lid 55 can be more effectively suppressed.

  Furthermore, the sum of the length of the leg portion 533 along the central axis CL3 of the outer peripheral wall portion 531 and the length of the trunk portion 532 along the central axis CL3 is made larger than the outer diameter of the outer peripheral wall portion 531. Therefore, when the inclination of the outer peripheral wall portion 531 is very small, the leg portion 533 and the trunk portion 532 are easily brought into contact with the pipe 52. Thereby, the more outstanding aesthetics and watertightness can be obtained.

  Further, as in the present embodiment, the rib portion 534 constitutes a part of the tilt suppressing mechanism, thereby simply increasing the outer diameter of the outer peripheral wall portion 531, the outer peripheral wall portion 531, the pipe 52, and the drain port member 51. The sliding resistance between the pipe 52 and the outer peripheral wall portion 531 can be reduced when the support protrusion 44 moves up and down as compared with the case where the gap between them is reduced. Further, when the support protrusion 44 moves up and down, foreign matter is less likely to be caught between the pipe 52 and the outer peripheral wall portion 531. As a result, the water passing member 53 (outer peripheral wall portion 531) can be smoothly moved along the inner peripheral surface of the pipe 52, and good operability can be obtained.

  In addition, in the present embodiment, the rib portion 534 is a ridge extending from the upper end to the lower end of the outer peripheral wall portion 531 (in this embodiment, a ridge extending over the entire region of the outer peripheral wall portion 531 in the direction of the central axis CL3. ) And provided at the uppermost and lowermost portions of the outer peripheral wall portion 531. Therefore, when the inclination of the outer peripheral wall portion 531 is very small, the rib portion 534 easily comes into contact with the pipe 52, and the inclination of the plug lid 55 can be extremely effectively suppressed.

  Further, since the support protrusion 44 can be disposed vertically above the rotation axis CL2 of the rotation portion 41, the amount of vertical movement of the support protrusion 44 and thus the lift amount of the plug lid 55 can be maximized. Therefore, very excellent drainage performance can be realized.

  When the support protrusion 44 can be disposed vertically above the rotation axis CL2 of the rotation portion 41, the plug lid can be placed by placing a heavy object on the plug lid 55 when the drain port 104 is opened. When a downward force is applied to 55, there is a concern that a large load is applied to the support protrusion 44, the rotating portion 41, and the like, and the support protrusion 44 is damaged. However, in this embodiment, when a force is applied to the plug lid 55, the shock absorber spring 54D is compressed and deformed, so that the load applied to the support protrusion 44 and the like can be reduced. Thereby, damage to the support protrusion 44 etc. can be prevented more reliably, and the durability of the drain plug device 1 can be further increased.

  Further, in a state where the support protrusion 44 is arranged vertically above the rotation axis CL <b> 2 of the rotation unit 41, the rotation of the rotation unit 41 is performed when a downward force is applied to the plug lid 55. It becomes difficult to occur. Therefore, unintentional rotation of the rotation part 41 and further unintentional closing of the drain port 104 when the stopper lid 55 is accidentally stepped on can be prevented more reliably.

  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-described embodiment, the tilt suppressing mechanism is configured by the outer peripheral surface of the outer peripheral wall portion 531 (the trunk portion 532), the leg portion 533, and the rib portion 534, but one or two of these three are used. An inclination suppression mechanism may be configured. For example, as shown in FIG. 8, the length of the body portion 612 in the outer peripheral wall portion 611 of the water flow member 61 is set to a predetermined value or more, thereby suppressing the inclination only by the outer peripheral surface of the outer peripheral wall portion 611 (body portion 612). A mechanism may be configured. When the relative rotation of the water passage member 61 with respect to the pipe 52 (main body pipe 52A) can be restricted, at least a portion of the body 612 that can face the support protrusion 44 across the central axis CL3 is a predetermined value or more. If the length is set to, an inclination suppression mechanism can be realized.

  In addition, as shown in FIG. 9, the water passage member 62 may be configured such that the leg portion 623 extends from the lower portion of the relatively short trunk portion 622, and the tilt suppression mechanism may be configured only by the leg portion 623.

  (B) The shape of the leg part 533 is not limited to the shape of the said embodiment. Therefore, for example, as shown in FIG. 10, the leg portion 643 of the water passage member 64 is a straight portion 643 </ b> A that forms an edge on one side along the width direction (along the circumferential direction of the outer peripheral wall portion 641). And it is good also as providing the inclination part 643B which comprises the edge part of the other side along the width direction, and the top part 643C located between the linear part 643A and the inclination part 643B. The straight portion 643A extends parallel to the central axis of the outer peripheral wall portion 641. The inclined portion 643B has a shape that is inclined with respect to the circumferential direction of the outer peripheral wall portion 641. The top portion 643C has a rounded curved shape.

  With this configuration, even if the water passage member 64 is inserted into the pipe 52 (main body pipe 52A) with the inclined portion 643B and the top portion 643C positioned vertically above the support protrusion 44, the inclined portion 643B is inserted. When the top portion 643C comes into contact with the support protrusion 44, the water passing member 64 rotates so that the straight portion 643A approaches the support protrusion 44, and the support protrusion 44 has the straight portion 643A and the inclined portion 643B. It is almost certainly arranged between the two.

  Further, particularly in this example, the leg portion 643 is in a state of being closer to the support protrusion 44 along the circumferential direction of the pipe 52 (main body pipe 52A) (along the circumferential direction of the outer peripheral wall portion 641). When the outer peripheral wall portion 641 is lifted by the protrusion 44 and the outer peripheral wall portion 641 is inclined, the leg portion 643 adjacent to the support protrusion 44 is likely to come into contact with the pipe 52 when the inclination is very small. Thereby, the inclination of the outer peripheral wall 641 and the plug lid 55 can be more effectively suppressed.

  (C) As shown in FIG. 11, a hollow shape opened vertically downward or vertically downward (in this example, vertically downward) in a portion located between the adjacent leg portions 653 below the trunk portion 652. The arrangement space 652A may be provided. The arrangement space 652A is a space in which the support protrusions 44 are arranged. The width of the opening of the arrangement space 652A is slightly smaller than that of the support protrusion 44. By elastically deforming the water passage member 65 so as to widen the width of the opening of the arrangement space 652A, the support protrusion 44 is formed. It can pass through the opening of the placement space 652A. In the state where the support protrusions 44 are arranged in the arrangement space 652A, the locking portion 652B which is a part forming the arrangement space 652A in the trunk portion 652 is supported vertically along the vertical direction below the support protrusions 44. 44 can be locked.

  With this configuration, when the support protrusion 44 is moved up vigorously, a situation in which the plug lid 55 (unit 58) jumps upward can be prevented more reliably. As a result, safety and usability can be improved. Further, when the water flow member 65 and the support protrusion 44 are not properly assembled, that is, the support protrusion 44 is not disposed in the arrangement space 652A, and the locking portion 652B is placed on the support protrusion 44. In this case, the stopper lid 55 is in a state of being lifted more than normal. Therefore, it can be easily recognized that an erroneous assembly has occurred.

  In such a configuration, simply inserting the water passage member 65 into the pipe 52 results in the state where the locking portion 652B is placed on the support protrusion 44, and the support protrusion 44 enters the arrangement space 652A. It can be in a non-arranged state. In this case, the support protrusion 44 can be arranged in the arrangement space 652A by slightly pushing the water passage member 65 downward and elastically deforming the water passage member 65 to widen the opening of the arrangement space 652A. .

  Further, the length of the arrangement space 652A along the central axis of the outer peripheral wall portion 651 (along the vertical direction in a state where the outer peripheral wall portion 651 is arranged in the pipe 52) can be appropriately changed. For example, as shown in FIG. 11, the length may be substantially the same as the thickness of the support protrusion 44 along the vertical direction. For example, as shown in FIG. 12, the length of the arrangement space 662A along the central axis of the outer peripheral wall portion 661 (along the vertical direction in the state where the outer peripheral wall portion 661 is arranged in the pipe 52). Is larger than the thickness of the support protrusion 44 along the vertical direction, and the support protrusion 44 can be moved to some extent along the central axis (vertical) direction of the outer peripheral wall portion 661 in the arrangement space 662A. May be. In this case, when the water passage member 66 is incorrectly assembled to the support protrusion 44 (that is, the support protrusion 44 is not arranged in the arrangement space 662A and the arrangement space 662A is formed in the outer peripheral wall portion 661). When the locking portion 662B to be mounted is on the support protrusion 44), the stopper lid 55 is further lifted than normal. For this reason, it can be recognized more easily that erroneous assembly has occurred.

  (D) In the above-described embodiment, the leg portion 533 is configured not to exist vertically below the support protrusion 44. However, as shown in FIG. 13, the leg portion 673 wraps around the support protrusion 44 and supports the protrusion. The water passage member 67 may be configured so as to be positioned vertically below 44. In this case, when the outer peripheral wall portion 671 is tilted as the support protrusion 44 is moved upward, the portion of the leg portion 673 that is positioned vertically below the support protrusion 44 is piped when the outer peripheral wall portion 671 is less inclined. 52 (main body tube 52A). Therefore, the inclination of the outer peripheral wall 671 and thus the stopper lid 55 can be suppressed very effectively.

  (E) In the above embodiment, a plurality of leg portions 533 are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531, but the number of leg portions and the arrangement interval are not limited thereto. Therefore, for example, only one leg may be provided. Moreover, it is good also as providing a several leg part at non-equal intervals (for example, providing only two leg parts so that the support protrusion 44 may be pinched | interposed).

  (F) In the above embodiment, three or more rib portions 534 are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531, but the number of rib portions and the arrangement interval are not limited thereto. Absent. Therefore, for example, only one rib portion may be provided at a predetermined position (for example, a position sandwiching the center axis CL3 of the outer peripheral wall portion 531 between the support protrusion 44). Further, for example, a plurality of rib portions may be provided at unequal intervals.

  Furthermore, for example, as shown in FIG. 10, a rib portion 644 may be provided on the outer periphery of the straight portion 643A so as to extend in parallel with the straight portion 643A. In this case, as described above, since the straight portion 643A is adjacent to the support protrusion 44 along the circumferential direction of the outer peripheral wall portion 531 [along the circumferential direction of the pipe 52 (main body pipe 52A)], the rib portion 644 is provided. Is positioned in the vicinity of the support protrusion 44 along the circumferential direction of the outer peripheral wall portion 641 [along the circumferential direction of the pipe 52 (main body pipe 52A)]. Thus, when the outer peripheral wall portion 641 is lifted by the support protrusion 44, the rib portion 644 disposed in the vicinity of the support protrusion 44 becomes more easily in contact with the pipe 52 and the like, and the outer peripheral wall portion 641 and thus the plug lid 55 Can be more effectively suppressed.

  Further, as shown in FIG. 13, the rib portion 674 may be configured to be positioned vertically below the support protrusion 44. In this case, even if the outer peripheral wall portion 671 is inclined with the upward movement of the support protrusion 44, the portion of the rib portion 674 that is positioned vertically below the support protrusion 44 is at a time when the inclination of the outer peripheral wall portion 671 is even smaller. It will contact the piping 52 (main body tube 52A). Therefore, the inclination of the outer peripheral wall 671 and thus the stopper lid 55 can be more effectively suppressed.

  (G) In the above-described embodiment, the rib portion 534 has a protrusion extending in parallel with the central axis of the outer peripheral wall portion 531, but the shape of the rib portion 534 is not limited to this. For example, the rib portion may be a dot-like protrusion, or a protrusion that extends obliquely with respect to the circumferential direction of the outer peripheral wall portion 531.

  (H) In the above embodiment, the rib portion 534 is provided over the entire area along the direction of the central axis CL3 of the outer peripheral wall portion 531, but the rib portion is arranged in the direction of the central axis CL3 of the outer peripheral wall portion 531. You may provide only in a part along. For example, the rib portion may be provided only at the uppermost portion of the outer peripheral wall portion 531 or may be provided only at the lowermost portion of the outer peripheral wall portion 531.

  (I) In the above embodiment, each leg portion 533 is provided in a state of being spaced apart along the circumferential direction of the outer peripheral wall portion 531, but FIG. 14 and FIG. 15 and FIG. 16, the leg portions 683 and 693 of the outer peripheral wall portions 681 and 691 pass so as to form a continuous cylindrical shape along the circumferential direction of the outer peripheral wall portions 681 and 691, as shown in FIG. The water members 68 and 69 may be configured. In this case, a recess (in this example, a groove) is provided in a portion of the leg portions 683 and 693 corresponding to the portion where the support protrusion 44 is disposed, while the other portion is provided with the pipe 52 (main body pipe 52A). You may comprise so that the shape arrange | positioned along an inner peripheral surface may be made.

  In addition, as shown in FIG. 16, while providing the groove part 693A extended along the circumferential direction of the outer peripheral wall part 691 (main body pipe | tube 52A), along the inner peripheral surface of the piping 52 (main body pipe | tube 52A) below the said groove part 693A. In the case where the annular protrusion 693B is provided, for example, by providing a slit extending in the vertical direction with respect to the leg 693, the leg 693 can be easily elastically deformed radially inward. It may be configured. In this case, the mounting of the unit 58 in the pipe 52 (arrangement of the support protrusion 44 with respect to the groove 693A) and the removal of the unit 58 from the pipe 52 (removal of the support protrusion 44 from the groove 693A) are facilitated. Can be done. In addition, by providing the annular protrusion 693 </ b> B, it is possible to more reliably prevent the stopper lid 55 from protruding upward when the support protrusion 44 is moved up vigorously. Thereby, safety and usability can be improved.

  (J) In the above-described embodiment, the leg portion 533 is configured to be disposed along the inner peripheral surface of the pipe 52 (main body pipe 52A), but FIG. 17 and FIG. 18 (in FIG. 17 and FIG. 18, As shown in the arm portion and the like (not shown), the leg portion 703 of the outer peripheral wall portion 701 is not disposed along the inner peripheral surface of the pipe 52 (main body pipe 52A), and the pipe 52 (main body pipe 52A) extends from the leg section 703. The water passing member 70 may be configured so that the distance to the head becomes relatively large. Even in the case of such a configuration, an advantageous effect can be obtained in terms of suppressing the inclination of the outer peripheral wall 701 and the plug lid 55 as compared with the case where no leg is present. Therefore, good aesthetics and water tightness can be obtained.

  (K) In the above embodiment, the outer peripheral wall portion 531 has an annular shape. However, as shown in FIGS. 19 and 20, even if the water passage member 71 is configured so that the outer peripheral wall portion 711 has an acyclic shape. Good. In this example, the outer peripheral wall portion 711 includes a supported portion 711A supported by the support protrusion 44, and a facing portion 711B provided at a position facing the supported portion 711A via the central axis CL1 of the pipe 52. It has. Then, in the supported portion 711A, the leg portion 713 provided to extend downward, and the opposing portion configured such that the upper end portion of the outer surface thereof is located above the upper end portion of the outer surface of the supported portion 711A. 711B constitutes an inclination suppression mechanism. That is, when the inclination of the outer peripheral wall portion 711 is relatively small, the outer surface upper end portion of the leg portion 713 and the facing portion 711A comes into contact with the drain port member 51 and the pipe 52 (main body pipe 52A), thereby Further inclination is suppressed. Note that the tilt suppression mechanism may be configured by only one of the facing portion 711B and the leg portion 713. Moreover, it is good also as providing a leg part in the outer peripheral wall part 711 in the position facing the supported part 711A via central axis CL1, and comprises the supported part 711A and the opposing part 711B among the outer peripheral wall parts 711. You may change suitably the extension amount toward the upper direction of a site | part. Further, for example, the shape of the portion constituting the supported portion 711A (the portion where the leg portion 713 is provided) of the outer peripheral wall portion 711 is applied to the portion constituting the facing portion 711B of the outer peripheral wall portion 711. The outer peripheral wall portion 711 is rotationally symmetric about the central axis CL1 by applying the shape of the portion constituting the facing portion 711B of the outer peripheral wall portion 711 to the portion constituting the supported portion 711A of the outer peripheral wall portion 711. You may comprise so that the shape of this may be made.

  (L) In the above embodiment, the support protrusion 44 has a cylindrical shape, but the shape of the support protrusion 44 is not limited thereto. For example, the support protrusion may have an elliptical cross section, a rectangular cross section, a polygonal cross section, or the like.

  (M) In the above-described embodiment, the support shaft 54 includes a shock absorber spring 54D and the like, and a function (shock absorber) that reduces the load applied to the support protrusion 44 when a downward force is applied to the plug lid 55. However, the support shaft may not have a shock absorber function. In this case, it is preferable to define a rotatable range of the rotating portion 41 so that the support protrusion 44 is not disposed vertically above the rotating shaft CL2 of the rotating portion 41. By defining in this way, when a downward force is applied to the plug lid 55, the rotation portion 41 is easily rotated so that the support protrusion 44 escapes from the force, and as a result, the support protrusion 44, etc. Damage can be prevented more reliably.

  (N) 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.

  (O) The configuration of the operating device 2 and the installation location in the above embodiment are merely examples. Therefore, instead of the operation device that reciprocates, an operation device that rotates (rotates) the operation 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.

  (P) In the above embodiment, the transmission member 31 is configured by a wire or the like that can reciprocate along the inner periphery of the tube member 32. However, the configuration of the transmission member is not limited to this, and for example, rotation You may comprise a transmission member by the universal joint etc. which can transmit force. In this case, the end portion of the transmission member may be directly connected to the rotation unit, and the movement direction conversion unit 42 may not be provided.

  (Q) You may provide a hair catcher inside an outer peripheral wall part in order to collect foreign materials, such as the dust contained in the waste_water | drain which flows inside the water flow member.

  (R) In the above embodiment, the inner diameter of the drain port member 51 and the inner diameter of the pipe 52 (main body pipe 52A) are substantially equal, but the inner diameter of the drain port member 51 is equal to the pipe 52 (main body pipe 52A). ) Larger than the inner diameter. That is, a step may be formed in a portion where the water passage member is disposed inside. In this case, the part (upper part) arrange | positioned inside the drain outlet member 51 among water passage members may be provided with the function as an inclination suppression mechanism, and piping 52 (main body pipe | tube 52A) among water passage members. The part (lower part) arrange | positioned inside may be equipped with the function as an inclination suppression mechanism. Of course, both the upper part and the lower part may have a function as a tilt suppressing mechanism. In this case, a step may be formed on the outer peripheral surface of the water passage member. That is, the outer diameter of the water passage member may be constant along the axial direction, or the outer diameter may be different along the axial direction.

  (S) In the above embodiment, the support protrusion 44 is one that moves up and down with the rotation of the rotating portion 41. However, the support protrusion can be moved up and down at a portion that supports the water passage member. The configuration is not limited to this. Therefore, for example, the support protrusion may be configured by a rod-shaped member that supports the water passage member at one end portion and is rotatable about an axis that extends in the horizontal direction at the other end portion. Further, for example, a support protrusion that can reciprocate so that the amount of protrusion with respect to the inner peripheral surface of the pipe 52 changes and the portion that supports the water passage member is inclined with respect to the moving direction may be used. . In this case, the water passage member can be moved up and down by changing the height of the portion of the inclined portion that supports the water passage member as the support protrusion moves.

  DESCRIPTION OF SYMBOLS 1 ... Drain plug apparatus, 4 ... Plug lid side mechanism part, 41 ... Turning part, 44 ... Supporting protrusion, 52 ... Piping, 53, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70 , 71 ... Water-permeable member, 54 ... Support shaft, 54A ... Bar-shaped part, 54B ... Outer cylinder part, 54C ... Bottom cover part, 54D ... Shock absorber spring, 55 ... Stopper lid, 100 ... Basin (tub), 104 ... Drain port, 531, 611, 641, 651, 661, 671, 681, 691, 701, 711 ... Outer peripheral wall part, 652A, 662A ... Arrangement space, 652B, 662B ... Locking part, 533, 623, 643, 673 , 683, 693, 703, 713 ... legs, 534, 634, 644, 674 ... ribs, CL1 ... (center of piping), CL2 ... (turning shaft) rotating shaft, CL3 ... (outer peripheral wall) Center axis.

Claims (19)

A plug lid for opening and closing the drain of the tank body;
A drainage pipe that has an outer peripheral wall portion disposed along the inner peripheral surface of the pipe in the drainage pipe, and a water passage member that directly or indirectly supports the stopper lid;
Projecting into the pipe and having the outer peripheral wall portion mounted in a state where the drainage port is opened, and having a support protrusion for supporting the water flow member, and at least the water flow member among the support protrusions is supported. And a stopper lid side mechanism configured to move the water passage member up and down by moving the part to move up and down,
The water flow member is a drain plug device configured to be removable from the pipe by being pulled up,
The drain plug device, wherein the water passage member includes an inclination suppressing mechanism that suppresses an inclination of the outer peripheral wall portion with respect to a central axis of the pipe.   The drain plug device according to claim 1, wherein at least a part of the tilt suppression mechanism is configured by an outer peripheral surface of the water passage member. The outer peripheral wall portion includes a leg portion extending downward from a portion in contact with the support protrusion,
The drain plug device according to claim 1, wherein at least a part of the tilt suppression mechanism is configured by the leg portion.   The drain plug device according to claim 3, wherein the leg portion is disposed along an inner peripheral surface of the pipe. The outer peripheral wall portion is annular,
The drain plug device according to claim 3 or 4, wherein a plurality of the leg portions are provided at equal intervals along a circumferential direction of the outer peripheral wall portion.   The drain plug device according to any one of claims 3 to 5, wherein the leg portion is provided at a position adjacent to the support protrusion along a circumferential direction of the pipe.   The drain plug device according to any one of claims 3 to 6, wherein the leg portion is located vertically below the support protrusion around the support protrusion. The outer peripheral wall portion has an annular body portion that contacts the support protrusion,
The leg portion extends downward from the lower portion of the trunk portion,
The sum of the length of the leg portion along the central axis of the outer peripheral wall portion and the length of the trunk portion along the central axis of the outer peripheral wall portion is made larger than the outer diameter of the outer peripheral wall portion. The drain plug device according to any one of claims 3 to 7, wherein The outer peripheral wall portion includes a rib portion formed to protrude radially outward,
The drain plug device according to any one of claims 1 to 8, wherein at least a part of the tilt suppression mechanism is configured by the rib portion.   The drain plug device according to claim 9, wherein the rib portion is provided at least at an uppermost portion of the outer peripheral wall portion.   The drain plug device according to claim 9, wherein the rib portion is provided at least at a lowermost portion of the outer peripheral wall portion.   The drain plug device according to any one of claims 9 to 11, wherein the rib portion is provided in the vicinity of the support protrusion along a circumferential direction of the pipe.   The drain plug device according to any one of claims 9 to 12, wherein the rib portion is provided at a position vertically below the support protrusion. The outer peripheral wall portion is annular,
The drain plug device according to any one of claims 9 to 13, wherein three or more rib portions are provided at equal intervals along a circumferential direction of the outer peripheral wall portion.   The drain plug device according to any one of claims 9 to 14, wherein the rib portion forms a ridge extending from an upper end to a lower end of the outer peripheral wall portion. The outer peripheral wall portion opens vertically downward or vertically downward, has an arrangement space in which the support protrusion is arranged, and a locking portion that forms the arrangement space,
In the state in which the support protrusion is disposed in the arrangement space, the locking portion is configured to be locked to the support protrusion along a vertical direction vertically below the support protrusion. The drain plug device according to any one of claims 1 to 15.   The length of the arrangement space along the vertical direction is larger than the thickness of the support protrusion along the vertical direction in a state where the outer peripheral wall portion is arranged in the pipe. Item 17. The drain plug device according to Item 16. A support shaft supported by the water-permeable member inside the outer peripheral wall,
The water flow member indirectly supports the stopper lid via the support shaft,
The support shaft is
A rod-like portion that supports the stopper lid at the upper end;
A cylindrical outer tube portion that accommodates the rod-like portion in a reciprocable manner inside itself; and
A bottom lid portion that closes a lower end side opening of the outer cylinder portion;
A shock absorber spring disposed between the rod-shaped portion and the bottom lid portion in the outer cylinder portion;
18. The shock absorber spring is configured to be compressively deformable when a downward force is applied to the stopper lid when the drain port is opened. 18. The drain plug device according to item. The plug lid side mechanism portion has a rotatable rotation portion,
The support protrusion protrudes into the pipe from the end surface of the rotating part, and is configured to move up and down by the rotation of the rotating part,
The drain plug device according to claim 18, wherein the support protrusion can be disposed vertically above a rotation shaft of the rotation unit.

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