JP6795196B2 - Drain plug device - Google Patents

Description

The present invention relates to a drain plug device provided with a plug lid for opening and closing the drain port of the tank body.

The drain plug device is provided with a plug lid provided at the drain port of the tank body (for example, a bathtub or a washbasin), and the drain port is opened and closed 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 (support mechanism) that holds the support shaft in a vertically movable state, and a displacement of an operation button or the like is predetermined. It is generally known that the stopper 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 and the like).

Further, in recent years, the lid has a rotatable rotating portion, a support projection protruding from the rotating portion toward the inside of the pipe, and an annular outer wall portion arranged along the inner peripheral surface of the pipe. A drain plug device has been proposed in which a water passage member that directly or indirectly supports the lid is provided, and the outer peripheral wall portion is placed on the support protrusion to support the plug lid or the like by the support protrusion. (See, for example, Patent Document 2 and the like). In the technique described in the patent document, the support projection moves up and down while rotating with the rotation of the rotating portion, so that the water passage member and the plug lid move up and down, and the drain port is opened and closed. Become. Further, above the outer peripheral wall portion, an annular hair catcher is provided coaxially with 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 flow member) and thus the stopper The lid is designed to prevent tilting.

Japanese Unexamined Patent Publication No. 11-21965 Japanese Unexamined Patent Publication No. 2012-36558

By the way, it may be desired to set the distance from the surface of the tank body to the support protrusion relatively small due to the installation space. In this case, it is conceivable that the hair catcher is not provided, but if the hair catcher is not provided, the outer peripheral wall portion seems to be cantilevered by the support protrusions when the outer peripheral wall portion is viewed from the side. It becomes a state. Therefore, when the support protrusion moves upward to lift the outer peripheral wall portion, the position where the central axis of the outer peripheral wall portion is sandwiched between the outer peripheral wall portion and the portion supported by the support protrusion (supported portion). There is a risk that the part (opposing part) in the area will be lower than the supported part. When the facing portion is lowered below the supported portion in this way, the outer peripheral wall portion (for example, the central axis of the outer peripheral wall portion and the surface constituting the outer peripheral wall portion) is tilted with respect to the central axis of the pipe as compared with the normal state. As a result, the stopper lid is tilted. If the stopper lid is tilted, the appearance when the drain port is opened may be deteriorated. In addition, if the drainage port is to be closed while the plug lid is tilted, the center of the part (sealed part) sealed by the plug lid when the drainage port is closed and the central axis of the plug lid are shafts. There is a possibility that the watertightness will be reduced due to the deviation.

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

Hereinafter, each means suitable for solving the above object will be described in terms of terms. In addition, the action and effect peculiar to the corresponding means will be added as necessary.

Means 1. A stopper lid for opening and closing the drainage port of the tank body,
A water passage member having an outer peripheral wall portion arranged along the inner peripheral surface of the pipe in the drainage pipe and directly or indirectly supporting the plug lid.
It has a support protrusion that supports the water passage member by projecting into the pipe and placing the outer peripheral wall portion in a state where the drain port is open, and supports at least the water passage member among the support protrusions. It is provided with a plug lid side mechanism portion configured to move the water flow member up and down by moving the part to be moved up and down.
The water passage member is a drain plug device configured to be removable from the pipe by being pulled up.
The water passage member includes an inclination suppressing mechanism for suppressing the inclination of the outer peripheral wall portion with respect to the central axis of the pipe .
The outer peripheral wall portion includes a leg portion extending downward from a portion in contact with the support protrusion.
A drain plug device characterized in that at least a part of the inclination suppressing mechanism is formed by the legs .

According to the above means 1, it is possible to prevent the outer peripheral wall portion from being tilted with respect to the central axis of the pipe by the tilt suppressing mechanism provided in the water flow member itself. Therefore, it is possible to more reliably prevent the stopper lid from being tilted when the drain port is opened. As a result, a good aesthetic appearance can be obtained when the drain port is opened. Further, when the drain port is opened, it is possible to effectively suppress the misalignment between the center of the sealed portion such as the tank body and the central axis of the stopper lid. As a result, good watertightness can be obtained when the drainage port is closed.

Further, according to the above means 1, when the support protrusion moves upward to lift 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, and as a result, the outer peripheral wall portion It is possible to suppress further inclination of. As a result, the inclination of the stopper lid can be effectively suppressed, and a better aesthetic appearance and watertightness can be obtained.

Means 2 . The drain plug device according to means 1 , wherein the legs are arranged along the inner peripheral surface of the pipe.

According to the means 2 , the legs are arranged along the inner peripheral surface of the pipe. That is, the legs are arranged so that the outer surface thereof is close to the inner peripheral surface of the pipe. Therefore, the legs 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. As a result, the inclination of the stopper lid can be suppressed more effectively, and a better aesthetic appearance and watertightness can be obtained.

Means 3 . The outer peripheral wall has an annular shape,
The drain plug device according to means 1 or 2 , wherein a plurality of the legs are provided at equal intervals along the circumferential direction of the outer peripheral wall portion.

According to the above means 3 , even when the water passing member rotates relative to the pipe, the action and effect of the above means 1 and the like can be surely exhibited. In addition, even if a factor that causes inclination other than the vertical movement of the support protrusion (for example, an external force transmitted through the stopper lid or the like) occurs in the water passage member, the inclination of the outer peripheral wall portion and thus the stopper lid can be adjusted. It can be suppressed very effectively.

Means 4 . The drain plug device according to any one of means 1 to 3 , wherein the legs are provided at positions adjacent to the support protrusions along the circumferential direction of the pipe.

According to the above means 4 , when the support protrusion moves upward to lift the outer peripheral wall portion, the leg portion adjacent to the support protrusion comes into contact with the pipe, so that the inclination of the outer peripheral wall portion is more effectively suppressed. Can be done. As a result, the inclination of the stopper lid can be suppressed more effectively.

Means 5 . The drain plug device according to any one of means 1 to 4 , wherein the leg portion wraps around the support protrusion and is located vertically below the support protrusion.

According to the above means 5 , when the support protrusion moves upward to lift the outer peripheral wall portion, the portion of the leg portion located vertically below the support protrusion comes into contact with the pipe, so that the outer peripheral wall portion and the stopper lid Tilt can be suppressed very effectively.

Means 6 . The outer peripheral wall portion has an annular body portion in contact with the support protrusion, and has an annular body portion.
The legs extend downward from the lower part of the body.
The sum of the length of the leg portion along the central axis of the outer peripheral wall portion and the length of the body 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 1 to 5 , wherein the drain plug device is described.

In other words, the "central axis of the outer peripheral wall portion" can be said to be the "central axis of the body portion".

According to the above means 6, when the inclination of the outer peripheral wall portion is very small, the legs and / or the body portion come into contact with the pipe, and further inclination of the outer peripheral wall portion can be suppressed. Thereby, better aesthetics and watertightness can be obtained.

Means 7. The outer peripheral wall portion includes a rib portion formed so as to project outward in the radial direction.
The drain plug device according to any one of means 1 to 6, wherein at least a part of the inclination suppressing mechanism is formed by the rib portion.

According to the above means 7, the same effects as those of the following means 8 are exhibited.

Means 8 . A stopper lid for opening and closing the drainage port of the tank body,
A water passage member having an outer peripheral wall portion arranged along the inner peripheral surface of the pipe in the drainage pipe and directly or indirectly supporting the plug lid.
It has a support protrusion that supports the water flow member by projecting into the pipe and placing the outer peripheral wall portion in a state where the drain port is open, and supports at least the water flow member among the support protrusions. It is provided with a plug lid side mechanism portion configured to move the water flow member up and down by moving the part to be moved up and down.
The water passage member is a drain plug device configured to be removable from the pipe by being pulled up.
The water passage member includes an inclination suppressing mechanism for suppressing the inclination of the outer peripheral wall portion with respect to the central axis of the pipe.
The outer peripheral wall portion includes a rib portion formed so as to project outward in the radial direction.
By the rib portion, discharge water faucet device it and at least a part is composed of said tilt suppressing mechanism.

According to the above means 8 , the gap between the outer peripheral wall portion (rib portion) and the pipe can be made smaller by the rib portion. Therefore, when the outer peripheral wall portion is slightly tilted, the outer peripheral wall portion (rib portion) comes into contact with the pipe or a member provided coaxially with the pipe, and further tilting of the outer peripheral wall portion is suppressed. Can be done. As a result, the inclination of the stopper lid can be further suppressed, and a better aesthetic appearance and watertightness can be obtained.

Further, as compared with the case where the gap between the outer peripheral wall portion and the pipe is reduced by simply increasing the outer diameter of the outer peripheral wall portion, when the support protrusion moves up and down, the pipe and the outer peripheral wall portion are connected to each other. The sliding resistance can be reduced. Further, when the support protrusion moves up and down, foreign matter is less likely to be caught between the pipe and the outer peripheral wall portion. As a result, the water passage member (outer peripheral wall portion) can be smoothly moved along the inner peripheral surface of the pipe. That is, according to the above means 8 , it is possible to prevent the operability from being lowered while suppressing the inclination of the stopper lid.

Since the rib portion constitutes a part of the outer peripheral surface of the water passage member, the fact that the rib portion constitutes the inclination suppressing mechanism means that the inclination suppressing mechanism is formed by the outer peripheral surface of the water passing member. be able to. That is, forming the inclination suppressing mechanism by the outer peripheral surface of the water passing member includes forming the inclination suppressing mechanism by the rib portion.

Means 9 . The drain plug device according to means 7 or 8 , wherein the rib portion is provided at least at the uppermost portion of the outer peripheral wall portion.

According to the above means 9 , 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. As a result, the inclination of the stopper lid can be suppressed extremely effectively, and a very excellent aesthetic appearance and watertightness can be obtained.

Means 10 . The drain plug device according to means 7 or 8 , wherein the rib portion is provided at least at the lowermost portion of the outer peripheral wall portion.

According to the above means 10 , similarly to the above means 9 , the inclination of the stopper lid can be suppressed extremely effectively, and a very excellent aesthetic appearance and watertightness can be obtained.

Means 11 . The drain plug device according to any one of means 7 to 10 , 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 11 , when the outer peripheral wall portion is lifted by the support protrusion, the rib portion arranged in the vicinity of the support protrusion comes into contact with the pipe or the like, so that the inclination of the outer peripheral wall portion is more effectively suppressed. can do. As a result, the inclination of the stopper lid can be suppressed more effectively.

Means 12 ． The drain plug device according to any one of means 7 to 11 , wherein the rib portion is provided at a position vertically below the support protrusion.

According to the above means 12 , when the outer peripheral wall portion is lifted by the support protrusion, the rib portion located vertically below the support protrusion comes into contact with the pipe or the like, so that the outer peripheral wall portion and the stopper lid are further tilted. It can be effectively suppressed.

Means 13 . The outer peripheral wall has an annular shape,
The drain plug device according to any one of means 7 to 12 , 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 13 , even when the water passing member rotates relative to the pipe, the action and effect of the means 8 and the like can be surely exhibited. In addition, even if a factor that causes inclination other than the vertical movement of the support protrusion (for example, an external force transmitted through the stopper lid or the like) occurs in the water passage member, the inclination of the outer peripheral wall portion and thus the stopper lid can be adjusted. It can be suppressed very effectively.

Means 14 . The drain plug device according to any one of means 7 to 13 , wherein the rib portion forms a ridge extending from the upper end to the lower end of the outer peripheral wall portion.

According to the means 14 , 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 suppressed more effectively, and better watertightness can be obtained.

Means 15 . The outer peripheral wall portion has an arrangement space in which the support protrusions are arranged and a locking portion forming the arrangement space, which is opened diagonally downward or vertically downward.
When the support protrusion is arranged in the arrangement space, the locking portion is configured to be able to be locked to the support protrusion along the vertical direction below the support protrusion. The drain plug device according to any one of means 1 to 14 .

According to the means 15 , it is possible to more reliably prevent a situation in which the stopper lid pops out upward when the support protrusion is vigorously moved upward. As a result, safety and usability can be improved.

Further, according to the above means 15 , when the water passage member and the support protrusion are not in an appropriate assembled state, that is, the support protrusion is not arranged in the arrangement space, and the locking portion is placed on the support protrusion. If so, the stopper lid will be in a floating state compared to the normal state. Therefore, it is possible to easily recognize that erroneous assembly has occurred.

Means 16 . A means characterized in that, in a 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. The drain plug device according to 15 .

According to the above means 16 , when the water flow member and the support protrusion are not properly assembled, the stopper lid floats further than in the normal state. Therefore, it is possible to more easily recognize that erroneous assembly has occurred.

Means 17 ． A support shaft supported by the water-passing member is provided inside the outer peripheral wall portion.
The water passage member indirectly supports the plug lid via the support shaft.
The support shaft
A rod-shaped portion that supports the plug lid at the upper end portion,
A tubular outer cylinder that accommodates the rod-shaped portion in a state where it can be reciprocated inside itself,
A bottom lid that closes the lower end opening of the outer cylinder and
A shock absorber spring arranged between the rod-shaped portion and the bottom lid portion in the outer cylinder portion is provided.
The means 1 to 16 is characterized in that the shock absorber spring is configured to be compressively deformable when a downward force is applied to the plug lid when the drain port is opened. Drain plug device.

According to the above means 17 , when the drain port is opened, the shock absorber spring is compressed and deformed to support the shock absorber spring when the stopper lid or the like is stepped on or a heavy object is placed on the stopper lid. The load applied to the protrusion can be reduced. As a result, damage to the support protrusions and the members supporting the support protrusions can be prevented more reliably, and the durability of the device can be further improved.

Means 18 . The plug lid side mechanical portion has a rotatable rotating portion and has a rotatable portion.
The support protrusion projects from the end surface of the rotating portion into the pipe, and is configured to move up and down by the rotation of the rotating portion.
The drain plug device according to means 17 , wherein the support protrusion can be arranged vertically above the rotation shaft of the rotating portion.

When the support protrusion is arranged vertically above the rotation shaft of the rotating portion, if a downward force is applied to the plug lid by stepping on the plug lid or the like, the support protrusion will be subjected to a downward force. Mainly, a force along the radial direction of the rotating portion is applied, and almost no force is applied along the circumferential direction of the rotating portion. Therefore, it is unlikely that the rotating portion rotates so that the supporting projection escapes from the force due to the applied force, and a large load is applied to the supporting projection, the rotating portion, and the like. As a result, the support protrusions and the like may be damaged. Therefore, by configuring the support protrusions so that they are not arranged vertically above the rotation shaft of the rotating portion, when a force directed downward is applied to the plug lid, the support protrusions are forced by the applied force. It is conceivable to make the rotating portion rotatable so as to escape from. However, in this case, the amount of vertical movement of the support protrusion and the amount of lift of the stopper lid become small, which may be slightly disadvantageous in terms of drainage performance. Further, it is conceivable that the rotating portion is configured to be very easy to rotate so that the support protrusion can easily escape from the force, but in this case, the rotating portion unintentionally rotates with a small force. There is a risk of doing so.

In this regard, according to the above means 18 , since the support protrusion can be arranged vertically above the rotation shaft of the rotating portion, the amount of vertical movement of the support protrusion and thus the lift amount of the plug lid can be maximized. .. Therefore, very excellent drainage performance can be realized.

On the other hand, since the support protrusion can be arranged vertically above the rotation shaft of the rotating portion, there is a concern that the support protrusion or the like may be damaged when a force is applied to the plug lid. However, according to the above means 18 , The load applied to the support protrusions and the like can be reduced by the shock absorber spring, and damage to the support protrusions and the like can be prevented more reliably.

Further, when the support protrusion is arranged vertically above the rotation shaft of the rotating portion, the rotating portion is unlikely to rotate even when a force directed downward is applied to the plug lid. Become. Therefore, it is possible to more reliably prevent the unintended rotation of the rotating portion and the unintended closing of the drain port when the stopper lid is accidentally stepped on.

It is sectional drawing which shows the structure of the drain outlet device and the like. It is sectional drawing which shows the structure of the operation apparatus and the like. It is an exploded perspective view which shows the structure of the plug lid side mechanism part. It is an enlarged front view of the support protrusion and the like for explaining the rotation range of the support protrusion. It is a perspective view which shows the structure of the water-flowing member. It is a partially enlarged development view of a water flow member. It is sectional drawing of the water passing member and the like for demonstrating the calculation method of the length of the body part necessary for realizing the inclination suppressing mechanism by the outer peripheral surface of a water passing member. It is a perspective view which shows the structure of the water-flowing member in another embodiment. It is a perspective view which shows the structure of the water-flowing member in another embodiment. It is a partially enlarged development view of the water flow member which shows the structure of the leg part and the rib part in another embodiment. It is a partially enlarged development view of the water flow member which shows the structure of the arrangement space in another embodiment. It is a partially enlarged development view of the water flow member which shows another example of the arrangement space. It is a partially enlarged development view of the water flow member which shows the structure of the leg part and the rib part in another embodiment. It is sectional drawing of the drain outlet device and the like for showing the structure of the leg part in another embodiment. It is a bottom view of the water-passing member for showing the structure of the leg part in another embodiment. It is sectional drawing of the drain outlet device and the like for showing the structure of the leg part in another embodiment. It is sectional drawing of the drain outlet device and the like for showing the structure of the leg part in another embodiment. It is a bottom view of the water-passing member for showing the structure of the leg part in another embodiment. It is sectional drawing of the drain outlet device and the like for showing the structure of the water flow member in another embodiment. It is a perspective view of the water-flowing member and the like in another embodiment.

Hereinafter, one 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 washbasin 100 or the like as a tank body, and includes an operating device 2, a release wire 3, a plug lid side mechanism portion 4, and a drain port. The device 5 is provided. The wash basin 100 is provided with a bottom wall portion 101 constituting the bottom portion thereof, and the bottom wall portion 101 includes a tubular standing portion 102 extending in the vertical direction and a lower end of the standing portion 102. An annular overhang 103 that protrudes inward in the radial direction is formed. A drainage port 104 is formed on the inner circumference of the overhanging portion 103.

As shown in FIG. 2, the operating device 2 can reciprocate between a tubular guide portion 21 attached to a wall-shaped back guard 105 provided near the washbasin 100 and the inner circumference of the guide portion 21. It is provided with an operating member 22 arranged in. The other end of the transmission member 31 described later of the release wire 3 is attached to one end of the operating member 22.

Further, an operation-side bending guide member 23 having a tubular shape that bends at a substantially right angle is attached to the outer periphery of one end of the guide portion 21. Then, the other end of the tube member 32 described later of the release wire 3 is held on the inner circumference of the operation side bending guide member 23.

The release wire 3 includes a long-shaped transmission member 31 made of a wire or the like, and a long tubular tube member 32 made of a resin or the like. The transmission member 31 is arranged on the inner circumference of the tube member 32, and reciprocates with respect to the tube member 32 as the operating member 22 reciprocates.

Returning to FIG. 1, the plug lid side mechanism portion 4 is attached to the pipe 52 described later of the drain port device 5. Further, as shown in FIGS. 1 and 3, the plug lid side mechanism portion 4 is connected to a rotatable rotating portion 41 and one end of the transmission member 31, and rotates the reciprocating motion of the transmission member 31. It is provided with a motion direction changing unit 42 that converts the motion direction into the above, and a case member 43 that houses the motion direction changing unit 42 and is attached to the pipe 52.

The rotating portion 41 projects from the inside of the case member 43 to the outside, and the protruding portion is inserted into a mounting pipe 52B described later in the pipe 52. Further, the rotating portion 41 has a rod-shaped support projection 44 protruding into the pipe 52 (main body pipe 52A) on the outer peripheral side of the end surface of the pipe 52 located on the internal space side of the main body pipe 52A described later. ..

The support projection 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, by rotating the rotating portion 41, the support projection 44 moves up and down while rotating. Further, in the present embodiment, the support projection 44 can be arranged vertically above the rotation shaft CL2 of the rotation portion 41 by defining the rotatable range of the rotation portion 41 within a predetermined range. (See FIG. 4).

The motion direction changing unit 42 includes a rack portion 42A to which one end of the transmission member 31 is connected, and a rotatable gear portion 42B that is meshed with the rack portion 42A and is provided coaxially with the rotating portion 41. It has. During the reciprocating motion of the transmission member 31, the rack portion 42A reciprocates in the case member 43 to rotate the gear portion 42B, and the rotation portion 41 rotates due to the rotation of the gear portion 42B, which in turn causes the support projection. 44 is designed to move up and down while rotating.

The case member 43 includes a front contact portion 43A and a rear contact portion 43B so as to sandwich the front and rear sides of the rack portion 42A in the reciprocating movement direction in a portion where the rack portion 42A is housed. Then, when the rack portion 42A moves forward due to the forward movement of the transmission member 31, the rack portion 42A comes into contact with the front contact portion 43A, so that further forward movement of the rack portion 42A is restricted, and eventually the rack portion 42A rotates. Further rotation of the portion 41 is restricted. On the other hand, when the rack portion 42A is reactivated due to the relocation of the transmission member 31, the rack portion 42A comes into contact with the rear contact portion 43B, so that further retraction of the rack portion 42A is restricted, and eventually the rack portion 42A is rotated. Further rotation of the moving portion 41 is restricted. That is, in the present embodiment, the rotatable range of the rotating portion 41 is defined in a predetermined range by the front side contact portion 43A and the rear side contact portion 43B.

Further, a plurality of claw portions 43C extending in parallel with the rotating portion 41 are provided on the projecting side surface of the rotating portion 41 of the case member 43, and the claw portion 43C provides a plug lid side mechanism portion. 4 is attached to the pipe 52 (mounting pipe 52B).

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

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

The drainage port member 51 is formed in a tubular shape, and is inserted into the drainage port 104 so that its own central axis and the central axis of the drainage port 104 substantially coincide with each other. Further, the drainage port member 51 includes a flange-shaped flange portion 51A formed so as to protrude outward in the radial direction at the upper end portion thereof, and a male screw portion 51B formed on the outer periphery below the flange portion 51A. ..

The pipe 52 includes a tubular main body pipe 52A and a tubular mounting pipe 52B branched from the main body pipe 52A.

The main body pipe 52A extends along the vertical direction and includes a female screw portion 52C capable of screwing the male screw portion 51B on the inner circumference of one end (upper end) thereof. Then, with the flange portion 51A arranged on the overhanging portion 103, the male threaded portion 51B is screwed into the female threaded portion 52C, and the overhanging 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 drainage port member 51 and is attached to the washbasin 100.

Further, 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 seal member 57 provides a drain port. Water leakage from between the member 51 and the pipe 52 and the washbasin 100 is prevented.

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

The water flow member 53 is arranged 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 along the radial direction from the inner circumference of the outer peripheral wall portion 531. (See FIG. 5).

The outer peripheral wall portion 531 is arranged in the pipe 52 (main body pipe 52A) along the inner peripheral surface of the pipe 52 (main body pipe 52A). Then, the outer peripheral wall portion 531 is placed on the support protrusion 44, so that the water flow member 53 is supported in the pipe 52 (main body pipe 52A) by the support protrusion 44. However, in the state where the support protrusion 44 is arranged 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 flow 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 portion 54A, an outer cylinder portion 54B, a bottom lid portion 54C, and a shock absorber spring 54D.

The rod-shaped portion 54A has a rod shape extending in the vertical direction, and the upper end portion thereof is attached to the central portion of the back surface of the stopper lid 55 to support the stopper lid 55. Further, the lower end portion of the rod-shaped portion 54A has a brim shape that protrudes outward in the radial direction.

The outer cylinder portion 54B has a cylindrical shape, and the rod-shaped portion 54A is housed inside the outer cylinder portion 54B in a state where it can be reciprocated. Further, the upper end portion of the outer cylinder portion 54B has a bent shape that protrudes inward in the radial direction, and the collar-shaped portion of the rod-shaped portion 54A comes into contact with the bent portion, so that the outer cylinder 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 circumference of the outer cylinder portion 54B (see FIG. 5). As a result, the outer cylinder portion 54B and thus the support shaft 54 are in a state of being supported by the water passing member 53 inside the outer peripheral wall portion 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 54D is formed by spirally winding a predetermined metal wire, and is elastically deformable along the longitudinal direction of the support shaft 54. Further, 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 in a state of being compressed more than its own natural length. .. Then, in a normal state (a state in which no special external force is applied to the plug lid 55 or the like), the maximum distance between the collar-shaped portion of the rod-shaped portion 54A and the bottom lid portion 54C is secured. There is.

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

The stopper lid main body 55A is provided substantially coaxially with the drainage port member 51, and has a tubular portion 55C extending downward on the outer peripheral side of the back surface thereof. The packing portion 55B is fitted into the outer circumference of the tubular portion 55C.

The packing portion 55B is formed in an annular shape by an elastically deformable material (for example, rubber, resin, etc.). Then, when the support protrusion 44 moves downward due to the displacement of the operating member 22, the plug lid 55 moves downward together with the water passing member 53 and the support shaft 54, and the entire outer peripheral portion of the packing portion 55B comes into contact with the bottom wall portion 101. By doing so, the drainage port 104 is closed. On the other hand, when the support protrusion 44 moves upward due to the displacement of the operating member 22, the plug lid 55 moves upward together with the water passing member 53 and the support shaft 54, and the packing portion 55B separates from the bottom wall portion 101. Then, the drainage port 104 is opened.

Further, in the present embodiment, the support protrusion 44 is in contact with the outer peripheral wall portion 531 when the drainage port 104 is opened, but the support protrusion 44 is separated from the outer peripheral wall portion 531 when the drainage port 104 is closed. It has become. As a result, when the drainage port 104 is closed, the packing portion 55B can be reliably brought into contact with the bottom wall portion 101, and good watertightness can be obtained.

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

At the same time, in the present embodiment, by pulling up the plug lid 55 and the support shaft 54 from the front side of the washbasin 100, the unit 58 including the water flow member 53, the support shaft 54 and the plug lid 55 is removed from the pipe 52 at once. Can be done. When the unit 58 is removed from the pipe 52, only the support projection 44 slightly protrudes inside the pipe 52 (main body pipe 52A). Therefore, it is possible to improve maintainability and cleanability.

Next, the configuration of the water flow member 53 will be described. In the present embodiment, as described above, the water flow member 53 has an outer peripheral wall portion 531, and the outer peripheral wall portion 531 has a plurality of body portions 532, respectively, as shown in FIGS. 5 and 6. It includes a leg portion 533 and a rib portion 534.

The body portion 532 has a cylindrical shape, and when the drain port 104 is opened, the support protrusion 44 comes into contact with the lower surface thereof. Further, when the body portion 532 is arranged coaxially with the pipe 52 (main body pipe 52A), the outer peripheral surface thereof is slightly between the outer peripheral surface of the body portion 532 and the inner peripheral surface of the pipe 52 (main body pipe 52A) and the drainage port member 51 (for example,). It is configured so that a gap (about 1 mm) is formed.

Further, in the present embodiment, the outer peripheral surface of the body portion 532 (water flow member 53) constitutes a part of an inclination suppressing mechanism for suppressing the inclination of the outer peripheral wall portion 531 with respect to the central axis CL1 of the pipe 52 (main body pipe 52A). (However, it is a reference example) . More specifically, it is formed between the outer peripheral surface of the body 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 body portion 532 and the pipe 52 (main body pipe 52A) are coaxial. The size of the gap to be formed 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 forms an annular shape as in the present embodiment, the central axis CL1 In consideration of the permissible value of the central axis CL3 of the outer peripheral wall portion 531 with respect to the above, the outer peripheral wall portion 531 was tilted due to the upward movement of the support protrusion 44 on the assumption that the leg portion 533 and the rib portion 534 were not present. Occasionally, when the inclination is equal to or less than the allowable value, the axial direction of the body portion 532 is such that the outer peripheral surface of the body portion 532 comes into contact with the inner peripheral surface of the pipe 52 (main body pipe 52A) and the drain port member 51. It is said that the length along the line is relatively large.

It should be noted that the outer peripheral surface of the body portion 532 (water flow member 53) constitutes at least a part of the inclination suppressing mechanism, for example, as shown in FIG. 7 (support shaft 54 and the like are not shown in FIG. 7). The size of the gap formed between the outer peripheral surface of the body portion 532 (particularly the upper part of the outer peripheral surface) and the inner peripheral surface of the pipe 52 (main body pipe 52A) or the drain port member 51 is r (mm), and the allowable size is defined as described above. When the value is θ (°), it is possible by setting the length L (mm) of the body portion 532 to r / sin θ or more. For example, when r is 1 mm and the permissible value 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 flow member 53) is set. Can form at least a part of the tilt suppressing mechanism. 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 is directed downward from the lower portion of the body portion 532 to the portion of the body portion 532 that contacts the support protrusion 44, in a direction parallel to the central axis of the body portion 532. It is extending. Further, a plurality of leg portions 533 are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531.

Further, the leg portion 533 has a curved shape in a cross section orthogonal to the central axis CL3 of the outer peripheral wall portion 531 and is arranged along the inner peripheral surface of the pipe 52 (main body pipe 52A). The gap between the outer peripheral surface of the leg portion 533 and the inner peripheral surface of the pipe 52 (main body pipe 52A) is relatively small (for example, about 1 mm). Therefore, when the outer peripheral wall portion 531 is tilted due to the operation of the support protrusion 44, the leg portion 533 can come into contact with the pipe 52 (main body pipe 52A) when the tilt is small. Therefore, in the present embodiment, the leg portion 533 constitutes a part of the inclination suppressing mechanism.

Further, the length of the leg portion 533 along the central axis CL3 (central axis of the body portion 532) of the outer peripheral wall portion 531 and the length of the body portion 532 along the central axis CL3 (central axis of the body portion 532). The sum of 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 set to be larger than the outer diameter of the outer peripheral wall portion 531. In the case where the rib portion 534 is present as in the present embodiment, the outer diameter of the outer peripheral wall portion 531 is that the center is located on the central axis CL3 of the outer peripheral wall portion 531 and the outermost circumference of the rib portion 534. It can be said that it is the outer diameter of the virtual circle that touches 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 a one-sided edge portion along the width direction thereof (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 second inclined portion 533B which constitutes the other side edge portion along the width direction and inclines in the direction opposite to the first inclined portion 533A, and is located between both inclined portions 533A and 533B and is rounded. It has a curved top 533C. Therefore, even if the water flow 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 , 533B and the top 533C come into contact with the support protrusion 44, so that the water flow member 53 rotates, and by extension, the support protrusion 44 can be almost certainly arranged between the adjacent leg portions 533. ..

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

The rib portions 534 project outward in the radial direction from the outer peripheral surface of the body portion 532, and three or more rib portions 534 (six in the present embodiment) are provided at equal intervals along the circumferential direction of the outer peripheral wall portion 531. There is. Further, when the outer peripheral wall portion 531 is tilted due to the operation of the support projection 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 tilt is small. .. Therefore, in the present embodiment, the rib portion 534 constitutes a part of the inclination suppressing mechanism. In the present embodiment, the inclination suppressing mechanism is configured by the outer peripheral surface of the water passage member 53 (body 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 area along the central axis CL3 direction 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 the present embodiment, the rib portion 534 is provided on the uppermost portion and the lowermost portion of the outer peripheral wall portion 531, respectively.

As described in detail above, 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 flow member 53, the leg portion 533, and the rib portion 534. It is possible to very effectively prevent the central axis CL3) of the pipe 52 from being tilted with respect to the central axis CL1 of the pipe 52. Therefore, it is possible to more reliably prevent the stopper lid 55 from being tilted when the drain port 104 is opened. As a result, a good aesthetic appearance can be obtained when the drain port 104 is opened. Further, when the drain port 104 is opened, it is effective to deviate the center of the portion (sealed portion) of the bottom wall portion 101 that comes into contact with the plug lid 55 when the drain port 104 is closed and the central axis of the plug lid 55. Can be suppressed. As a result, good watertightness can be obtained when the drainage port 104 is closed. In particular, in the present embodiment, since the leg portion 533 is arranged along the inner peripheral surface of the pipe 52 (main body pipe 52A), the inclination of the plug lid 55 can be suppressed more effectively.

Further, 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 flow member 53 rotates relative to the pipe 52 (main body pipe 52A), the inclination of the plug lid 55 can be effectively suppressed, and better aesthetics and watertightness can be obtained. be able to. Further, even when a factor causing inclination other than the vertical movement of the support protrusion 44 (for example, an external force transmitted through the stopper lid 55 or the like) occurs in the water passage member 53, the outer peripheral wall portion 531 and thus the stopper The inclination 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. When the leg portion 533 adjacent to the support protrusion 44 comes into contact with the pipe 52, the inclination of the outer peripheral wall portion 531 can be suppressed more effectively. As a result, the inclination of the stopper lid 55 can be suppressed more effectively.

Further, 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 body 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 body portion 532 are likely to come into contact with the pipe 52. Thereby, better aesthetics and watertightness can be obtained.

Further, as in the present embodiment, by forming a part of the inclination suppressing mechanism by the rib portion 534, the outer diameter of the outer peripheral wall portion 531 is simply increased, and the outer peripheral wall portion 531 and the pipe 52 and the drain port member 51 are combined. Compared with the case where the gap between the two is reduced, the sliding resistance between the pipe 52 and the like and the outer peripheral wall portion 531 can be reduced when the support projection 44 moves up and down. Further, when the support protrusion 44 moves up and down, foreign matter is less likely to be caught between the pipe 52 and the like and the outer peripheral wall portion 531. As a result, the water passage 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 has a ridge extending from the upper end to the lower end of the outer peripheral wall portion 531 (in the present embodiment, the ridge extending over the entire area of the outer peripheral wall portion 531 in the direction of its central axis CL3). ), And are provided at the top and bottom 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 suppressed extremely effectively.

Further, since the support protrusion 44 can be arranged vertically above the rotation shaft CL2 of the rotating 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 arranged vertically above the rotation shaft CL2 of the rotating portion 41, a heavy object is placed on the plug lid 55 when the drain port 104 is opened. When a downward force is applied to the 55, a large load is applied to the support protrusion 44, the rotating portion 41, and the like, and there is a concern that the support protrusion 44 and the like may be damaged. However, in the present embodiment, the load applied to the support protrusion 44 and the like can be reduced by compressing and deforming the shock absorber spring 54D when a force is applied to the stopper lid 55. As a result, damage to the support protrusion 44 and the like can be prevented more reliably, and the durability of the drain plug device 1 can be further enhanced.

Further, in a state where the support protrusion 44 is arranged vertically above the rotation shaft CL2 of the rotation portion 41, the rotation portion 41 rotates when a force directed downward is applied to the plug lid 55. It is less likely to occur. Therefore, it is possible to more reliably prevent the unintended rotation of the rotating portion 41 and the unintended closing of the drain port 104 when the stopper lid 55 is accidentally stepped on.

The content is not limited to the description of the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modification examples not illustrated below are also possible.

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

Further, as shown in FIG. 9, the water flow member 62 may be configured so that the leg portion 623 extends from the lower portion of the relatively short body portion 622, and the inclination suppressing mechanism may be configured only by the leg portion 623.

(B) The shape of the leg portion 533 is not limited to the shape of the above embodiment. Therefore, for example, as shown in FIG. 10, the leg portion 643 of the water passage member 64 forms a straight portion 643A that constitutes one side edge portion along the width direction thereof (along the circumferential direction of the outer peripheral wall portion 641). And the inclined portion 643B forming the other side edge portion along the width direction thereof, and the top portion 643C located between the straight portion 643A and the inclined portion 643B may be provided. 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 643C has a rounded curved shape.

With this configuration, even if the water flow 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 When the top portion 643C comes into contact with the support protrusion 44, the water flow member 64 rotates so that the straight portion 643A approaches the support protrusion 44, and the support protrusion 44 eventually becomes the straight portion 643A and the inclined portion 643B. Almost certainly placed between.

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), so that the support is supported. When the outer peripheral wall portion 641 is lifted by the protrusion 44 and the outer peripheral wall portion 641 is tilted, the leg portion 643 adjacent to the support protrusion 44 is likely to come into contact with the pipe 52 when the tilt is very small. As a result, the inclination of the outer peripheral wall portion 641 and thus the stopper lid 55 can be suppressed more effectively.

(C) As shown in FIG. 11, a recess shape that opens vertically diagonally downward or vertically downward (in this example, vertically diagonally downward) at a portion located between the adjacent leg portions 653 at the lower part of the body portion 652. The arrangement space of 652A may be provided. The arrangement space 652A is a space in which the support projection 44 is arranged. Further, the width of the opening of the arrangement space 652A is slightly smaller than that of the support projection 44, and the support projection 44 is elastically deformed so as to widen the width of the opening of the arrangement space 652A. It is possible to pass through the opening of the arrangement space 652A. When the support projection 44 is arranged with respect to the arrangement space 652A, the locking portion 652B, which is a portion of the body portion 652 that forms the arrangement space 652A, supports the support projection 44 vertically below the support projection 44 in the vertical direction. It can be locked to 44.

With this configuration, it is possible to more reliably prevent a situation in which the stopper lid 55 (unit 58) pops out upward when the support protrusion 44 is vigorously moved upward. 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 arranged 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 floating state as compared with the normal state. Therefore, it is possible to easily recognize that erroneous assembly has occurred.

In this configuration, if the water flow member 65 is simply inserted into the pipe 52, the locking portion 652B is placed on the support protrusion 44, and the support protrusion 44 is placed in the arrangement space 652A. It can be in an unplaced state. In this case, the support projection 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 when 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. Further, 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 when the outer peripheral wall portion 661 is arranged in the pipe 52). Is made larger than the thickness of the support protrusion 44 along the vertical direction, and the support protrusion 44 is configured to be movable to some extent along the central axis (vertical) direction of the outer peripheral wall portion 661 in the arrangement space 662A. You may. In this case, when the water flow member 66 is erroneously 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 is mounted on the support projection 44), the stopper lid 55 is further lifted than in the normal state. Therefore, it is possible to more easily recognize that erroneous assembly has occurred.

(D) In the above embodiment, the leg portion 533 is configured not to exist vertically below the support protrusion 44, but as shown in FIG. 13, the leg portion 673 wraps around the support protrusion 44 and supports the support protrusion. The water flow member 67 may be configured so as to be located vertically below 44. In this case, when the outer peripheral wall portion 671 is tilted due to the upward movement of the support protrusion 44, the portion of the leg portion 673 located vertically below the support protrusion 44 is piped when the tilt of the outer peripheral wall portion 671 is smaller. It will come into contact with 52 (main body pipe 52A). Therefore, the inclination of the outer peripheral wall portion 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 legs and the arrangement interval are not limited thereto. Therefore, for example, only one leg may be provided. Further, a plurality of legs may be provided at non-equal intervals (for example, only two legs may be provided so as to sandwich the support protrusion 44).

(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 where the central axis CL3 of the outer peripheral wall portion 531 is sandwiched between the rib portion and the support protrusion 44). Further, for example, a plurality of rib portions may be provided at non-equal intervals.

Further, 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 located in the vicinity of 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. As a result, when the outer peripheral wall portion 641 is lifted by the support protrusion 44, the rib portion 644 arranged in the vicinity of the support protrusion 44 becomes more easily in contact with the pipe 52 or the like, and the outer peripheral wall portion 641 and the stopper lid 55 The inclination of the can be suppressed more effectively.

Further, as shown in FIG. 13, the rib portion 674 may be configured to be located vertically below the support protrusion 44. In this case, even if the outer peripheral wall portion 671 is tilted due to the upward movement of the support protrusion 44, when the tilt of the outer peripheral wall portion 671 is even smaller, the portion of the rib portion 674 located vertically below the support protrusion 44 is located. It will come into contact with the pipe 52 (main body pipe 52A). Therefore, the inclination of the outer peripheral wall portion 671 and thus the stopper lid 55 can be suppressed more effectively.

(G) In the above embodiment, the rib portion 534 has a ridge extending parallel to 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 point-shaped protrusion, or may be a ridge extending diagonally 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 central axis CL3 direction of the outer peripheral wall portion 531, but the rib portion is provided in the direction of the central axis CL3 of the outer peripheral wall portion 531. It may be provided only in a part along the above. 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, the leg portions 533 are provided at intervals along the circumferential direction of the outer peripheral wall portion 531. However, FIGS. 14 and 15 and 16 (FIGS. 14 to 14) are provided. In 16, as shown in (not shown), the legs 683 and 693 of the outer peripheral wall portions 681 and 691 are passed so as to form a continuous tubular shape along the circumferential direction of the outer peripheral wall portions 681 and 691. Water members 68 and 69 may be configured. Further, in this case, a recessed portion (groove portion in this example) is provided in the portion of the legs 683 and 693 corresponding to the portion where the support protrusion 44 is arranged, while the other portion is piped 52 (main body pipe 52A). It may be configured to form a shape arranged along the inner peripheral surface of the.

As shown in FIG. 16, a groove portion 693A extending along the circumferential direction of the outer peripheral wall portion 691 (main body pipe 52A) is provided, and along the inner peripheral surface of the pipe 52 (main body pipe 52A) below the groove portion 693A. When the annular protrusion 693B to be arranged 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 inward in the radial direction. It may be configured. In this case, the unit 58 can be easily attached to the inside of the pipe 52 (arrangement of the support protrusion 44 with respect to the groove 693A) and the unit 58 can be easily removed from the pipe 52 (removal of the support protrusion 44 from the groove 693A). It becomes possible to do. By providing the annular protrusion 693B, it is possible to more reliably prevent the plug lid 55 from popping out upward when the support protrusion 44 is vigorously moved upward. As a result, safety and usability can be improved.

(J) In the above embodiment, the leg portion 533 is configured to be arranged along the inner peripheral surface of the pipe 52 (main body pipe 52A), but in FIGS. 17 and 18 (FIGS. 17 and 18). As shown in the arm portion (not shown), the leg portion 703 of the outer peripheral wall portion 701 is not arranged along the inner peripheral surface of the pipe 52 (main body pipe 52A), and the leg portion 703 to the pipe 52 (main body pipe 52A). The water flow member 70 may be configured so that the distance to the water passage member 70 is relatively large. Even in such a configuration, an advantageous effect is obtained in terms of suppressing the inclination of the outer peripheral wall portion 701 and the plug lid 55 as compared with the case where the legs are not present. Therefore, good aesthetics and watertightness can be obtained.

(K) In the above embodiment, the outer peripheral wall portion 531 has an annular shape, but as shown in FIGS. 19 and 20, even if the water flow member 71 is configured so that the outer peripheral wall portion 711 forms a non-annular shape. Good. In this example, the outer peripheral wall portion 711 includes a supported portion 711A supported by the support projection 44 and an opposing 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 so as to extend downward and the facing portion configured such that the upper end portion of its own outer surface is located above the upper end portion of the outer surface of the supported portion 711A. The tilt suppressing mechanism is configured by 711B. That is, when the inclination of the outer peripheral wall portion 711 is relatively small, the upper end of the outer surface 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), so that the outer peripheral wall portion 711 Further tilting is suppressed. The inclination suppressing mechanism may be configured by only one of the facing portion 711B and the leg portion 713. Further, the legs may be provided at positions of the outer peripheral wall portion 711 facing the supported portion 711A via the central axis CL1, or the supported portion 711A and the facing portion 711B of the outer peripheral wall portion 711 are formed. The amount of extension of the portion upward may be appropriately changed. Further, for example, the shape of the portion of the outer peripheral wall portion 711 that constitutes the supported portion 711A (the portion provided with the leg portion 713) may be applied to the portion of the outer peripheral wall portion 711 that constitutes the facing portion 711B. By applying the shape of the portion of the outer peripheral wall portion 711 that constitutes the facing portion 711B to the portion of the outer peripheral wall portion 711 that constitutes the supported portion 711A, the outer peripheral wall portion 711 is rotationally symmetric with respect to the central axis CL1. It may be configured to form the shape of.

(L) In the above embodiment, the support protrusion 44 has a columnar shape, but the shape of the support protrusion 44 is not limited to this. 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 embodiment, the support shaft 54 is provided with a shock absorber spring 54D or the like, and has a function of reducing the load applied to the support protrusion 44 when a downward force is applied to the stopper lid 55 (shock absorber). It has a function), but the support shaft may not have a shock absorber function. In this case, it is preferable to define the rotatable range of the rotating portion 41 so that the support projection 44 is not arranged vertically above the rotating shaft CL2 of the rotating portion 41. By defining in this way, when a downward force is applied to the stopper lid 55, the support protrusion 44 escapes from the force so that the rotating portion 41 can easily rotate, and eventually the support protrusion 44 or the like Damage can be prevented more reliably.

(N) In the above embodiment, the washbasin 100 is illustrated as the tank body, but the tank body to which the technical idea of the present invention can be applied is not limited to the washbasin. Therefore, for example, the technical idea of the present invention may be applied to a bathtub, a sink in a kitchen, or the like.

(O) The configuration of the operating device 2 and the installation location thereof in the above embodiment are merely examples. Therefore, as the operating device, instead of the one in which the operating member reciprocates, the operating member may rotate (rotate) and the transmission member 31 may be operated in accordance with the rotation (rotation) operation. .. Further, the operating device may be installed in a tank body such as a washbasin or a bathtub, or may be installed in a structure provided in the vicinity of the tank body.

(P) In the above embodiment, the transmission member 31 is composed of a wire or the like capable of reciprocating around the inner circumference of the tube member 32, but the configuration of the transmission member is not limited to this, for example, rotation. The transmission member may be configured by a universal joint or the like capable of transmitting force. In this case, the end portion of the transmission member may be directly connected to the rotating portion, and the motion direction changing portion 42 may not be provided.

(Q) A hair catcher may be provided inside the outer peripheral wall portion in order to collect foreign substances such as dust contained in the drainage flowing inside the water passage member.

(R) In the above embodiment, the inner diameter of the drainage port member 51 and the inner diameter of the pipe 52 (main body pipe 52A) are substantially equal to each other, but the inner diameter of the drainage port member 51 is the pipe 52 (main body pipe 52A). ) May be larger than the inner diameter. That is, a step may be formed in the portion where the water passing member is arranged inside. In this case, the portion (upper portion) of the water flow member arranged inside the drain port member 51 may have a function as an inclination suppressing mechanism, or the pipe 52 (main body pipe 52A) of the water flow member. The portion (lower portion) arranged inside the above may have a function as a tilt suppressing mechanism. Of course, both the upper portion and the lower portion 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 passing member. That is, the water passing member may have a constant outer diameter along its axial direction, or may have different outer diameters along its axial direction.

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

1 ... Drain plug device, 4 ... Plug lid side mechanism part, 41 ... Rotating part, 44 ... Support protrusion, 52 ... Piping, 53, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70 , 71 ... Water flow member, 54 ... Support shaft, 54A ... Rod-shaped part, 54B ... Outer cylinder part, 54C ... Bottom lid part, 54D ... Shock absorber spring, 55 ... Plug lid, 100 ... Washbasin (tank body), 104 ... Drainage port, 531,611,641,651,661,671,681,691,701,711 ... Outer 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 ... Central axis (of piping), CL2 ... (Rotating part) Rotating shaft, CL3 ... (Outer wall) ) Central axis.

Claims (18)

A stopper lid for opening and closing the drainage port of the tank body,
A water passage member having an outer peripheral wall portion arranged along the inner peripheral surface of the pipe in the drainage pipe and directly or indirectly supporting the plug lid.
It has a support protrusion that supports the water flow member by projecting into the pipe and placing the outer peripheral wall portion in a state where the drain port is open, and supports at least the water flow member among the support protrusions. It is provided with a plug lid side mechanism portion configured to move the water flow member up and down by moving the part to be moved up and down.
The water passage member is a drain plug device configured to be removable from the pipe by being pulled up.
The water passage member includes an inclination suppressing mechanism for suppressing the inclination of the outer peripheral wall portion with respect to the central axis of the pipe .
The outer peripheral wall portion includes a leg portion extending downward from a portion in contact with the support protrusion.
A drain plug device characterized in that at least a part of the inclination suppressing mechanism is formed by the legs . The drain plug device according to claim 1 , wherein the legs are arranged along the inner peripheral surface of the pipe. The outer peripheral wall has an annular shape,
The drain plug device according to claim 1 or 2 , wherein a plurality of the legs are provided at equal intervals along the circumferential direction of the outer peripheral wall portion. The drain plug device according to any one of claims 1 to 3 , wherein the legs are provided at positions adjacent to the support protrusions along the circumferential direction of the pipe. The drain plug device according to any one of claims 1 to 4 , wherein the leg portion wraps around the support protrusion and is located vertically below the support protrusion. The outer peripheral wall portion has an annular body portion in contact with the support protrusion, and has an annular body portion.
The legs extend downward from the lower part of the body.
The sum of the length of the leg portion along the central axis of the outer peripheral wall portion and the length of the body 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 1 to 5 , wherein the drain plug device is characterized. The outer peripheral wall portion includes a rib portion formed so as to project outward in the radial direction.
The drain plug device according to any one of claims 1 to 6, wherein at least a part of the inclination suppressing mechanism is formed by the rib portion. A stopper lid for opening and closing the drainage port of the tank body,
A water passage member having an outer peripheral wall portion arranged along the inner peripheral surface of the pipe in the drainage pipe and directly or indirectly supporting the plug lid.
It has a support protrusion that supports the water flow member by projecting into the pipe and placing the outer peripheral wall portion in a state where the drain port is open, and supports at least the water flow member among the support protrusions. It is provided with a plug lid side mechanism portion configured to move the water flow member up and down by moving the part to be moved up and down.
The water passage member is a drain plug device configured to be removable from the pipe by being pulled up.
The water passage member includes an inclination suppressing mechanism for suppressing the inclination of the outer peripheral wall portion with respect to the central axis of the pipe.
The outer peripheral wall portion includes a rib portion formed so as to project outward in the radial direction.
By the rib portion, discharge water faucet device it and at least a part is composed of said tilt suppressing mechanism. The drain plug device according to claim 7 or 8 , wherein the rib portion is provided at least at the uppermost portion of the outer peripheral wall portion. The drain plug device according to claim 7 or 8 , wherein the rib portion is provided at least at the lowermost portion of the outer peripheral wall portion. The drain plug device according to any one of claims 7 to 10 , wherein the rib portion is provided in the vicinity of the support protrusion along the circumferential direction of the pipe. The drain plug device according to any one of claims 7 to 11 , wherein the rib portion is provided at a position vertically below the support protrusion. The outer peripheral wall has an annular shape,
The drain plug device according to any one of claims 7 to 12 , wherein three or more rib portions are provided at equal intervals along the circumferential direction of the outer peripheral wall portion. The drain plug device according to any one of claims 7 to 13 , wherein the rib portion forms a ridge extending from the upper end to the lower end of the outer peripheral wall portion. The outer peripheral wall portion has an arrangement space in which the support protrusions are arranged and a locking portion forming the arrangement space, which is opened diagonally downward or vertically downward.
In a state where the support protrusions are arranged in the arrangement space, the locking portion is configured to be able to lock with respect to the support protrusions in the vertical direction below the support protrusions. The drain plug device according to any one of claims 1 to 14 . A claim characterized in that, in a 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. Item 12. The drain plug device according to item 15 . A support shaft supported by the water-passing member is provided inside the outer peripheral wall portion.
The water passage member indirectly supports the plug lid via the support shaft.
The support shaft
A rod-shaped portion that supports the plug lid at the upper end portion,
A tubular outer cylinder that accommodates the rod-shaped portion in a state where it can be reciprocated inside itself,
A bottom lid that closes the lower end opening of the outer cylinder and
A shock absorber spring arranged between the rod-shaped portion and the bottom lid portion in the outer cylinder portion is provided.
Any one of claims 1 to 16 , wherein the shock absorber spring is configured to be compressively deformable when a downward force is applied to the plug lid when the drain port is opened. The drain plug device described in the section. The plug lid side mechanical portion has a rotatable rotating portion and has a rotatable portion.
The support protrusion projects from the end surface of the rotating portion into the pipe, and is configured to move up and down by the rotation of the rotating portion.
The drain plug device according to claim 17 , wherein the support protrusion can be arranged vertically above the rotation shaft of the rotating portion.

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