JP2020204200A - Drain plug device - Google Patents

Abstract

To provide the drain plug device capable of dramatically increasing degree of freedom regarding an upper surface shape of a plug cover while more reliably preventing water from remaining on an upper surface of the plug cover.SOLUTION: The drain plug device 1 comprises the plug cover 6 for opening and closing a drainage inlet 21 into which the water flows during drainage, and an operating shaft mechanism 4 having an operating shaft 42 located on a back side of the plug cover 6, wherein an open/closed state of the drainage inlet 21 can be switched by moving the plug cover 6 with reciprocating movement of the operating shaft 42. The plug cover 6 is configured to rotate as the operating shaft 42 reciprocates, and the plug cover 6 is tilted diagonally with respect to a horizontal direction when the drainage inlet 21 is at least one of the open state and the closed state. As a result, it is possible to more reliably prevent the water from remaining on the upper surface of the plug cover 6. Further, in order to prevent the water from remaining, it is not necessary to make the upper surface shape of the plug cover 6 an upwardly convex curved surface shape, and the degree of the freedom regarding the upper surface shape of the plug cover 6 can be increased.SELECTED DRAWING: Figure 4

Description

The present invention relates to a drain plug device for opening and closing a drainage inlet into which drainage from a tank body flows.

Conventionally, a drain plug device provided on the bottom side of a tank body (for example, a bathtub or a washbasin) that can switch the open / closed state of a drainage inlet where water flows in during drainage by remotely controlling the lid. Are known.

As a drain plug device, an operating shaft that can be reciprocated and has the plug lid attached to the tip, a displaceable operating unit (for example, an operating button), and a driving force due to the displacement of the operating shaft are used as the operating shaft. As a result, those provided with a transmission member (for example, a wire or the like) for transmitting to the stopper lid are generally known. In such a drain plug device, the transmission member reciprocates with the operation of the operation unit, and the operating shaft and the plug lid move up and down to switch the open / closed state of the drain inlet. Further, the upper surface of the stopper lid is usually shaped like a curved surface that is convex upward (see, for example, Patent Document 1 and the like).

Japanese Unexamined Patent Publication No. 2012-154133

By the way, the reason why the upper surface of the stopper lid is curved upward as described above is to prevent water from remaining on the upper surface of the stopper lid and to prevent water stains and dirt from adhering to the stopper lid. is there. Therefore, when trying to obtain such an action effect, the upper surface shape of the stopper lid has to be a curved surface shape as described above, and it is difficult to adopt another shape. That is, in order to obtain the effect of preventing water from remaining on the upper surface of the stopper lid, the degree of freedom in design regarding the shape of the upper surface of the stopper lid is inevitably low.

The present invention has been made in view of the above circumstances, and an object of the present invention is to more reliably prevent water from remaining on the upper surface of the stopper lid, and to dramatically increase the degree of freedom regarding the shape of the upper surface of the stopper lid. The purpose is to provide a drain plug device that can be enhanced.

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 provided on the bottom side of the tank body to open and close the drainage inlet where water flows in during drainage,
When the plug lid is viewed from the front, it is located on the back side of the plug lid and is provided with an operating shaft mechanism having an operating shaft configured to be reciprocally movable.
A drain plug device capable of switching the open / closed state of the drain inlet by moving the plug lid with the reciprocating movement of the operating shaft.
It has a predetermined support and a pedestal that is directly or indirectly fixed to the tank body.
The plug lid is attached to the support portion in a rotatable state, and is configured to rotate with the reciprocating movement of the operating shaft.
The open / closed state of the drainage inlet is switched by rotating the plug lid with the reciprocating movement of the operating shaft, and the plug lid is opened when the drainage inlet is at least one of the open state and the closed state. A drain plug device characterized in that it is configured to be tilted diagonally with respect to the horizontal direction.

According to the above means 1, the plug lid is assumed to rotate with the reciprocating movement of the operating shaft, and when the drainage inlet is at least one of the open state and the closed state, the plug lid is oblique to the horizontal direction. It is configured to be tilted. When the stopper lid is tilted diagonally with respect to the horizontal direction, the water adhering to the upper surface of the stopper lid will flow down along the upper surface, so that water will be more reliably prevented from remaining on the upper surface of the stopper lid. can do. As a result, it is possible to more reliably prevent the adhesion of water stains and dirt to the upper surface of the stopper lid, and it is possible to improve the aesthetic appearance and hygiene.

Further, according to the above means 1, in order to prevent water from remaining on the upper surface of the stopper lid, it is not necessary to make the upper surface shape of the stopper lid an upwardly convex curved surface shape. Further, since the stopper lid is rotated by the operating shaft arranged on the back side of the stopper lid, the structure for rotating the stopper lid does not affect the shape of the upper surface of the stopper lid. As a result, the degree of freedom regarding the shape of the upper surface of the stopper lid can be dramatically increased.

Means 2. The upper surface of the stopper lid has a flat surface shape or a downwardly convex curved surface shape.
When the drainage inlet is in the closed state, the plug lid is housed in the recessed recess provided in the tank body, and a continuous surface is formed from the surface of the tank body to the upper surface of the plug lid. The drain plug device according to means 1, wherein the drain plug device is configured to form a shape.

It should be noted that "a continuous surface is formed from the surface of the tank body to the upper surface of the stopper lid" is not only when the surface is strictly continuous, but also to some extent between the surface of the tank body and the upper surface of the stopper lid. Including cases where there are steps and dents and both sides are almost continuous surfaces.

According to the above means 2, the upper surface of the plug lid has a flat surface shape or a downwardly convex curved surface shape, and when the drainage inflow port is closed, the plug lid is housed in the recess of the tank body and the plug is plugged. It is configured to have a continuous surface shape from the upper surface of the lid to the surface of the tank body. Therefore, the portion from the upper surface of the stopper lid to the surface of the tank body is made smoother and has almost no unevenness as compared with the case where the upper surface of the stopper lid is curved upward as in the past. be able to. This makes it possible to obtain a very good aesthetic appearance.

In addition, the safety for the user can be enhanced by making the state in which there is almost no unevenness from the upper surface of the stopper lid to the surface of the tank body. Further, it is possible to more effectively suppress the adhesion of dirt and water stains on the portion from the upper surface of the stopper lid to the surface of the tank body, and even if dirt or the like is attached, it is easy to remove the attached dirt or the like. It becomes possible to do it.

By using the configuration of the above means 1, it is possible to adopt a shape that is difficult to be conventionally adopted, such as a flat surface shape or a downwardly convex curved surface shape, as the upper surface shape of the stopper lid without any problem.

Means 3. The drainage inlet is located in a recessed recess provided in the tank body.
The plug lid is configured to be tilted diagonally with respect to the horizontal direction when the drainage inlet is open.
When the drainage inlet is in the open state, the lowermost portion of the upper surface of the plug lid along the inclination direction of the plug lid is arranged in the recess or vertically above the recess. The drain plug device according to means 1 or 2, characterized in that.

When the means 3 is subordinate to the means 2, the "recesses" refer to the same ones.

According to the above means 3, when the drainage inlet is in the open state, the lowermost portion of the upper surface of the plug lid along the inclination direction of the plug lid is arranged in the recess or vertically above the recess. Has been done. Therefore, when the drainage inlet is in the open state, the water that adheres to the upper surface of the plug lid and flows down along the upper surface can be more reliably guided into the recess. As a result, it is possible to prevent the water flowing down the upper surface of the stopper lid from adhering to the peripheral portion of the recess on the surface of the tank body and causing water stains and stains, and it is possible to obtain better aesthetics and hygiene.

Means 4. The tank body has a bottom wall portion and a side wall portion erected from the peripheral edge of the bottom wall portion.
The plug lid is arranged on the side wall portion side, its rotation axis is assumed to extend along the width direction of the side wall portion, and rotates around the side opposite to the side wall portion as a rotation center. The drain plug device according to any one of means 1 to 3, wherein the drain plug device is configured to be possible.

In other words, the "width direction of the side wall portion" means the extending direction of the side wall portion when viewed in a plan view (when viewed from above). Further, "the plug lid is arranged on the side wall portion side" means that the plug lid (particularly the portion closest to the side wall portion) is in the vicinity of the side wall portion (for example, within 30 mm, more preferably) when viewed in a plan view. This includes not only the case where it is arranged within 20 mm, more preferably within 10 mm), but also the case where the stopper lid is provided from the bottom wall portion to the side wall portion. Further, the portion of the side wall portion that is continuous with the bottom wall portion may have a curved shape that gradually rises from the bottom wall portion side.

According to the above means 4, the plug lid is arranged on the side wall portion side. Therefore, it is possible to make the plug lid less likely to get in the way for the user, which is convenient when, for example, "things" are placed on the tank body. In addition, it is possible to obtain an even better aesthetic appearance. Furthermore, when the tank body is a bathtub, it is possible to more reliably prevent the stopper lid from being trampled, causing damage or deformation of the stopper lid due to trampling, and causing discomfort to the user due to trampling. Can be prevented more reliably.

Further, according to the above means 4, the stopper lid is assumed to have its rotation axis extending along the width direction of the side wall portion and to rotate around the side opposite to the side wall portion as the rotation center. ing. Therefore, when viewed from the center side of the bottom wall portion of the tank body, the drainage inlet and its surrounding parts are hidden by the plug lid regardless of whether the drainage inlet is open or closed. be able to. As a result, it is possible to make it difficult for the user to see the formed portion of the drainage inflow port where dirt or the like easily adheres and the peripheral portion thereof, and it is possible to further improve the aesthetic appearance.

Means 5. It is provided with a drainage port member to which the pedestal portion is attached while being inserted into the attachment hole formed through the tank body.
The drainage port member is
A tubular main body whose end opening constitutes the drainage inlet, and
It has a collar that protrudes outward from the upper end of the main body.
In a cross section that passes through the internal space of the main body portion and is orthogonal to the rotation axis of the plug lid, the amount of protrusion of the collar portion with respect to the outer peripheral portion of the main body portion is larger than that on the side opposite to the side wall portion. The drain plug device according to means 4, wherein the side wall portion side is configured to be smaller.

According to the above means 5, the drainage port member is configured so that the amount of protrusion of the collar portion with respect to the outer peripheral portion of the main body portion is relatively smaller on the side wall portion side. Therefore, it is possible to install the drainage port member, and thus the pedestal portion and the plug lid, in a state of being closer to the side wall portion side. As a result, it is possible to more reliably and more effectively exert the action effect by arranging the plug lid on the side wall portion side.

Means 6. The plug lid is configured to be freely attachable and detachable to the support portion.
The drain plug device according to means 4 or 5, wherein the plug lid can be removed from the support portion by moving the plug lid toward the side wall portion.

According to the above means 6, since the stopper lid can be attached to and detached from the support portion, workability and convenience related to, for example, cleaning and maintenance can be improved.

Further, according to the above means 6, the stopper lid can be removed from the support portion by moving the stopper lid toward the side wall portion. Here, when the plug lid is configured to be removable from the support portion by moving the plug lid to the side opposite to the side wall portion, a "thing" (for example, a shower) is attached to the back surface of the plug lid that is tilted diagonally. If the "thing" is pulled to the opposite side of the side wall while the hose, dryer, or other cable is caught, the plug lid may unintentionally come off from the support. On the other hand, according to the above means 6, even if the "thing" is pulled to the side opposite to the side wall portion while the "thing" is caught on the back surface of the stopper lid, the stopper lid will come off from the support portion. Such a situation usually does not occur. Therefore, it is possible to more reliably prevent the stopper lid from being unintentionally removed, and it is possible to improve usability.

Means 7. The actuating shaft mechanism alternately holds the actuating shaft at a predetermined upper position and holds the actuating shaft at a predetermined lower position by pushing against the upper surface of the stopper lid. The drain plug device according to any one of means 1 to 6, wherein the drain plug device is configured to be possible.

According to the above means 7, by pushing the upper surface of the plug lid (pushing it by hand or stepping lightly), the operating shaft can be moved up and down to switch the open / closed state of the drainage inlet. It is convenient for the user because the stopper lid itself is the operation target when switching the open / closed state of the drainage inlet.

In addition, in the above means 7, while adopting a shape that can be easily pushed (for example, a downwardly convex curved surface shape) as the upper surface shape of the stopper lid, the configuration of the above means 1 prevents dirt on the upper surface of the stopper lid. It is possible to prevent adhesion. Further, since it is possible to prevent dirt and the like from adhering to the upper surface of the stopper lid by the configuration of the means 1, even if the upper surface of the stopper lid is configured to be an operation target as in the above means 7, the stopper lid It is unlikely that the user will feel uncomfortable due to dirt or the like during operation. Therefore, it can be said that the configuration of the means 1 works particularly effectively in the configuration of the means 7.

It is a perspective view of the drain plug device and the like when the drain inlet is closed. It is sectional drawing of the bathtub. FIG. 5 is a cross-sectional view taken along the line JJ of FIG. 1 when the drainage inlet is closed. It is a cross-sectional view taken along the line JJ of FIG. 1 when the drainage inlet is opened. It is a cross-sectional view taken along the line KK of FIG. 1 when the drainage inlet is opened. FIG. 5 is a cross-sectional view taken along the line LL of FIG. 1 when the drainage inlet is opened. It is sectional drawing which shows the drain plug device 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 a device for switching whether or not drainage from the bathtub 100 as a tank body is possible. In the present embodiment, the bottom wall portion 101 to the side wall portion of the bathtub 100 is used. It is provided in the portion covered with 102. Prior to the description of the drain plug device 1, first, the configuration of the bathtub 100 will be described.

The bottom wall portion 101 is a portion constituting the bottom surface of the bathtub 100, and the upper surface thereof is configured to be substantially horizontal. The side wall portion 102 is a portion erected on the peripheral edge of the bottom wall portion 101, and has a curved portion that gradually rises from the bottom wall portion 101 and a shape that is continuous with the upper end of the portion and slightly inclined with respect to the vertical direction. It has a part that makes up.

Further, as shown in FIG. 3, the portion of the bathtub 100 extending from the bottom wall portion 101 to the side wall portion 102 (the portion that gradually rises from the bottom wall portion 101) has a hanging portion 103 that hangs down in a substantially vertical direction and the hanging portion. An inner collar-shaped overhanging portion 104 that protrudes inward from the lower end portion of the portion 103 is provided. Then, a recess-shaped recess 105 is formed in the portion of the bathtub 100 from the bottom wall portion 101 to the side wall portion 102 by the space surrounded by the hanging portion 103. In the present embodiment, the shape of the recess 105 when viewed in a plan view is a shape of two parallel long sides extending in the lateral direction and two parallel short sides connecting the ends of these two long sides. It has the same shape as the rounded rectangle provided. The lateral direction refers to the width direction of the side wall portion 102 (that is, the extending direction of the side wall portion 102 when viewed in a plan view) (see FIG. 1).

Further, the overhanging portion 104 is formed with a pair of hole portions 104a for screwing and fixing the drainage port member 2 and the like, which will be described later (see FIG. 6). Further, a mounting hole 106 penetrating the bathtub 100 is formed on the inner circumference of the overhanging portion 104. In the present embodiment, the shape of the mounting hole 106 when viewed in a plan view includes an oval shape (two parallel side portions extending in the lateral direction and a curved portion connecting each end of these side portions). Shape).

Next, the drain plug device 1 will be described. As shown in FIGS. 3 to 6, the drain plug device 1 includes a drain port member 2, a pipe 3, an operating shaft mechanism 4, a pedestal portion 5, and a plug lid 6. 3 is a sectional view taken along line JJ of FIG. 1 when the drainage inflow port 21 described later is in the closed state, and FIG. 4 is a cross-sectional view taken along the line JJ when the drainage inflow port 21 is in the open state. -J line sectional view. Further, FIG. 5 is a sectional view taken along line KK of FIG. 1 when the drainage inflow port 21 is in the open state, and FIG. 6 is an LL of FIG. 1 when the drainage inflow port 21 is in the open state. It is a line sectional view.

The drainage port member 2 is a tubular component that is installed in a state of being inserted into the mounting hole 106. The internal space of the drainage port member 2 constitutes a flow path of water discharged from the bathtub 100, and the drainage flow in which water flows in when draining from the bathtub 100 due to the opening at the upper end of the inner circumference of the drainage port member 2. The entrance 21 is formed. The drainage inlet 21 is provided in the recess 105, and when viewed from the front (in the present embodiment, when viewed in a plane), the drainage inflow port 21 has a horizontally long shape (in the present embodiment, which is longer in the horizontal direction than in the vertical direction). Oval shape). That is, the drainage inflow port 21 has a horizontally long shape extending along the width direction of the side wall portion 102.

Further, the drainage port member 2 includes a main body portion 22 and a flange portion 23. The main body 22 has a horizontally long cylindrical shape corresponding to the shape of the mounting hole 106. That is, the main body portion 22 has a shape including two relatively long parallel long plate-shaped portions extending in the lateral direction and facing each other, and a curved plate-shaped portion connecting the ends of these long plate-shaped portions. It has become.

The collar portion 23 projects outward from the upper end portion of the main body portion 22, and the outer edge portion thereof has a rounded rectangular shape that is slightly smaller than the inner peripheral shape of the hanging portion 103. Further, through holes 23a (see FIG. 6) are formed in each of the portions of the collar portion 23 corresponding to the hole portion 104a.

Further, in a cross section that passes through the internal space of the main body 22 and is orthogonal to the rotation axis RA described later of the plug lid 6, the amount of protrusion of the collar 23 with respect to the outer peripheral portion of the main body 22 is opposite to that of the side wall 102. The side wall portion 102 side is configured to be smaller than the side side (see FIGS. 3 to 5). That is, the flange portion 23 in the present embodiment has a shape including two relatively long parallel long side portions extending along the width direction of the side wall portion 102 when viewed in a plan view, and the side wall portion 102 side. The width of the long side portion located in is smaller than the width of the long side portion located on the side opposite to the side wall portion 102.

The pipe 3 has a tubular shape, and together with the drain port member 2, is a portion that constitutes a flow path for drainage that flows through the drainage inlet 21. Further, a recessed screw hole portion 31 (see FIG. 6) having a female screw portion on the inner circumference is formed at each of the portions corresponding to the hole portion 104a on one end surface of the pipe 3. Then, with the drainage port member 2 inserted into the mounting hole 106 and the pipe 3, a predetermined screw 8 (see FIG. 6) having a male screw on the outer periphery is screwed into the screw hole portion 31 through the through hole 23a and the hole portion 104a. Then, by sandwiching the overhanging portion 104 between the flange portion 23 and the upper end surface of the pipe 3, the drainage port member 2 and the pipe 3 are connected and both are attached to the bathtub 100. There is.

In the present embodiment, an annular sealing member 9 formed of an elastically deformable material (for example, resin, rubber, etc.) is arranged between the upper surface of the overhanging portion 104 and the flange portion 23. Further, an annular seal member 10 formed of an elastically deformable material is arranged between the upper end surface of the pipe 3 and the lower surface of the overhanging portion 104. These seal members 9 and 10 prevent water leakage from between the drain port member 2 and the pipe 3 and the bathtub 100. The seal members 9 and 10 also have holes at locations corresponding to the holes 104a.

The operating shaft mechanism 4 is arranged inside the drain port member 2 and the pipe 3 (that is, the drainage flow path), and has a function of moving the plug lid 6. The operating shaft mechanism 4 includes a case portion 41, an operating shaft 42, a rotating ring 43, and an urging portion 44.

The case portion 41 is a component for installing the operating shaft 42 on the back side of the stopper lid 6 by being attached to the inner circumference of the drain port member 2 while holding the operating shaft 42 and the urging portion 44. The case portion 41 includes an outer ring portion 41a, a connecting portion 41b, a holding portion 41c, and a closing portion 41d.

The outer ring portion 41a is a portion that functions as an attachment portion of the operating shaft mechanism 4 to the drain port member 2. The outer ring portion 41a has a long cylindrical shape corresponding to the inner peripheral shape of the drainage port member 2 (main body portion 22), and has two holding portions 41c which face each other and extend in the lateral direction. It has a shape with a long plate-like part. In the present embodiment, the outer ring portion 41a is placed on a stepped portion provided on the inner peripheral surface of the drainage port member 2, so that the operating shaft mechanism 4 is attached to the drainage port member 2. ing. The outer ring portion 41a may be configured to be attached to the inside of the pipe 3, or may be configured to be attached to the inner portions of both of the drainage port member 2 to the pipe 3.

The connecting portion 41b is a portion that connects the inner peripheral surface of the outer ring portion 41a and the outer peripheral surface of the holding portion 41c. In the present embodiment, two connecting portions 41b are provided so as to connect the above-mentioned elongated plate-shaped portions of the outer ring portion 41a and the outer peripheral surface of the holding portion 41c. The number of connecting portions 41b, the forming position, and the like can be changed as appropriate.

The holding portion 41c and the closing portion 41d are for holding the operating shaft 42 and the urging portion 44. The holding portion 41c and the closing portion 41d each have a cylindrical shape, and the closing portion 41d is inserted and installed in the holding portion 41c so as to close the lower end opening of the holding portion 41c.

Further, an engaging tooth 41e (see FIGS. 3 and 4) is provided on the inner peripheral portion of the holding portion 41c, and a guide tooth 41f is provided on the inner peripheral portion of the closing portion 41d. The engaging teeth 41e and the guide teeth 41f are in a state of facing each other along the axial direction of the holding portion 41c and the like.

The engaging teeth 41e have a ridge shape extending along the axial direction of the holding portion 41c, and a plurality of engaging teeth 41e are provided at equal intervals along the circumferential direction of the holding portion 41c. The tip (lower end) of the engaging tooth 41e is provided with an engaged portion to which the rotating ring 43 (more specifically, the engaged tooth described later of the rotating ring 43) is engaged. Further, a groove extending along the axial direction of the holding portion 41c is formed between the adjacent engaging teeth 41e.

A plurality of guide teeth 41f are provided at equal intervals along the circumferential direction of the closing portion 41d. The guide tooth 41f is provided with a predetermined inclined surface, and has a role of rotating the rotating ring 43 in contact with the inclined surface in a predetermined direction.

The operating shaft 42 is located on the back side of the plug lid 6 when the plug lid 6 is viewed from the front (when the plug lid 6 is viewed from a position facing the upper surface thereof), and the plug lid 6 is moved back and forth by itself. Is to move. The operating shaft 42 has a columnar shape and is inserted in the inner circumference of the holding portion 41c and the closing portion 41d in a state where it can be reciprocated in the vertical direction. The operating shaft 42 in this embodiment is configured by connecting two rod-shaped parts in series. More specifically, by screwing a screw component (not shown) into each of the screw holes formed at the center of the end face of each rod-shaped component, the rod-shaped components are connected to form the operating shaft 42. Of course, the operating shaft 42 may be composed of one component.

The rotating ring 43 has an annular shape and is arranged in a rotatable state on the outer circumference of the operating shaft 42, and when the operating shaft 42 reciprocates, it reciprocates together with the operating shaft 42. There is. Further, the rotating ring 43 is provided with a plurality of engaged teeth protruding outward on its outer peripheral surface. The engaged teeth are provided at equal intervals along the circumferential direction of the rotating ring 43.

The urging portion 44 is provided in the holding portion 41c and the closing portion 41d, and is for applying an urging force to the operating shaft 42 along its forward (upward) direction. The urging portion 44 is composed of, for example, a spring that can be expanded and contracted and deformed, and is installed in a state of being compressed and deformed by being sandwiched between the operating shaft 42 and the closing portion 41d.

The operating shaft mechanism 4 configured as described above holds the operating shaft 42 at a predetermined upper position and holds the operating shaft 42 at a predetermined lower position by pushing against the upper surface of the stopper lid 6. It is possible to do things alternately.

More specifically, when a downward force is applied to the operating shaft 42 by pushing the stopper lid 6 with respect to the upper surface, the operating shaft 42 is arranged at the upper position (in the state shown in FIGS. 4 to 6). When the upper surface of the plug 6 is pushed while the drainage inlet 21 is open), the operating shaft 42 is reactivated (downward), and the engaged tooth of the rotating ring 43 is the guide tooth 41f. The guide tooth 41f is slid while contacting the lid, and the rotating ring 43 rotates slightly. At this time, the engaged teeth of the rotating ring 43 and the engaged portion of the engaging teeth 41e are substantially aligned with each other along the circumferential direction of the rotating ring 43.

In this state, when the pushing force against the plug lid 6 is released and the operating shaft 42 and the rotating ring 43 move forward (upward) due to the urging force from the urging portion 44, the engaged teeth of the rotating ring 43 are engaged. It is in a state of being engaged with the engaged portion of the combined tooth 41e. As a result, the operating shaft 42 is held (locked) at the lower position.

On the other hand, when the upper surface of the plug 6 is pushed while the operating shaft 42 is arranged at the lower position (the state shown in FIG. 3 and the drainage inlet 21 is closed), the operating shaft 42 is moved. At the stage of slightly returning (downward), the engaged tooth of the rotating ring 43 slides on the guide tooth 41f while contacting the guide tooth 41f, and the rotating ring 43 rotates slightly. At this time, the engaged teeth of the rotating ring 43 and the grooves formed between the adjacent engaging teeth 41e are substantially aligned with each other along the circumferential direction of the rotating ring 43.

In this state, when the pushing force against the plug lid 6 is released and the operating shaft 42 and the rotating ring 43 move forward (upward) due to the urging force from the urging portion 44, the engaged teeth of the rotating ring 43 are adjacent to each other. The operating shaft 42 moves forward (upward) to the upper position by entering the groove formed between the engaging teeth 41e. As a result, the operating shaft 42 is held in the upper position.

Next, the pedestal portion 5 and the plug lid 6 will be described. The pedestal portion 5 is a component for supporting the stopper lid 6 in a rotatable state. The pedestal portion 5 in the present embodiment has a rounded rectangular ring shape as a whole, which corresponds to the shape of the flange portion 23 of the drain port member 2. That is, the pedestal portion 5 has two relatively long parallel long side portions extending along the width direction of the side wall portion 102 and two relatively short side portions substantially orthogonal to the long side portion when viewed in a plan view. It is provided with parallel short side portions, and the long side portions and the ends of the short side portions are connected by a curved portion.

Further, the pedestal portion 5 is attached to the drain port member 2. That is, the pedestal portion 5 is indirectly fixed to the bathtub 100. The method of attaching the drainage port member 2 to the pedestal portion 5 is not particularly limited, but for example, a convex portion protruding inward is provided at a portion of the pedestal portion 5 arranged on the outer peripheral side of the flange portion 23. The pedestal portion 5 can be attached to the drain port member 2 by setting the convex portion into the concave portion provided on the outer periphery of the flange portion 23. In this embodiment, the pedestal portion 5 is provided so as to cover the screw 8 and to be inserted between the flange portion 23 and the hanging portion 103 in order to improve the aesthetic appearance.

Further, on the upper surface of the pedestal portion 5, a support portion 51 (see FIG. 5) for supporting the rotation shaft portion 61a described later of the plug lid 6 is provided. The support portion 51 is on the side opposite to the side wall portion 102 in the pedestal portion 5, that is, on the side opposite to the side wall portion 102 (in other words, the bottom wall portion 101) of the two long side portions constituting the pedestal portion 5 described above. It is provided on the long side portion located on the center side). Further, the support portions 51 are formed so as to project from the upper surface of the long side portion, and a plurality (for example, two) of the support portions 51 are provided at intervals along the extending direction of the long side portion. Further, each support portion 51 is provided with a notch portion located on the side wall portion 102 side (facing the side wall portion 102 side) to form a partially interrupted annular shape, and the rotation shaft portion 61a described later is formed. , It can be attached to and detached from the support portion 51 through the notch portion.

The plug lid 6 is a plug for opening and closing the drainage inlet 21, and has a horizontally long shape (in this embodiment, a rectangular shape with a rounded plane viewing angle) corresponding to the shape of the drainage inlet 21 (see FIG. 1). The stopper lid 6 is located on the side wall portion 102 side and is arranged corresponding to the recess 105 (in the recess 105 in the present embodiment), and in the present embodiment, when the drainage inlet 21 is in the closed state. In addition, the whole is accommodated in the recess 105. The stopper lid 6 is made of, for example, a flat stopper lid main body 61 made of resin or the like and an elastically deformable material (for example, rubber, resin, etc.) attached to the outer edge side of the back surface portion of the stopper lid main body 61. It has a packing portion 62.

The stopper lid main body 61 has a columnar rotating shaft portion 61a (see FIG. 5) extending along the width direction of the side wall portion 102 on the back side thereof, and the rotating shaft portion 61a is a supporting portion. It is attached so as to be rotatable with respect to 51. That is, the stopper lid 6 is attached to the support portion 51 in a rotatable state. As a result, the rotation axis RA of the plug lid 6 extends along the width direction (lateral direction) of the side wall portion 102, and the rotation center is on the side opposite to the side wall portion 102 (center side of the bottom wall portion 101). It is rotatable as.

Further, as described above, the rotating shaft portion 61a is configured to be freely attachable to and detachable from the support portion 51 through the notched portion of the support portion 51. In the present embodiment, the stopper lid 6 (plug lid) By moving the main body portion 61) toward the side wall portion 102, the rotating shaft portion 61a and thus the plug lid 6 can be removed from the support portion 51.

Further, the tip of the operating shaft 42 can come into contact with the central region of the back surface of the plug lid main body 61, and the plug lid 6 rotates and is displaced with respect to the bathtub 100 as the operating shaft 42 reciprocates. It has become like.

In the present embodiment, when the operating shaft 42 is arranged at the upper position, the upper surface of the stopper lid 6 is pushed to rotate the stopper lid 6 while holding the operating shaft 42 at the lower position. By setting the (locked) state, the stopper lid 6 is rotated by gravity, and the entire outer peripheral portion of the packing portion 62 is in contact with the drain port member 2, and as a result, the drainage inlet 21 is closed. (See FIG. 3). On the other hand, when the upper surface of the plug lid 6 is pushed to release the lock of the operating shaft 42 in this state, the operating shaft 42 is positioned above while the plug lid 6 is rotated by the urging force from the urging portion 44. Further, the packing portion 62 is separated from the drain port member 2, and as a result, the drainage inlet 21 is opened (see FIGS. 4 to 6). As described above, the drain plug device 1 in the present embodiment has a structure (so-called direct push) in which the plug lid 6 moves and the open / closed state of the drainage inlet 21 is alternately switched each time the upper surface of the plug lid 6 is pressed. ing. When the drainage inlet 21 is in the open state, the portion of the plug lid 6 on the opposite side of the rotating shaft RA goes out of the recess 105.

Further, as described above, the open / closed state of the drainage inflow port 21 is switched by rotating the plug lid 6, but in the present embodiment, the plug lid 6 is in the horizontal direction when the drainage inflow port 21 is in the open state. It is configured to be tilted diagonally (more specifically, the upper surface of the plug 6 is tilted diagonally in the same direction with respect to the horizontal direction).

In addition, the upper surface of the plug lid 6 (plug lid main body 61) has a downwardly convex curved surface shape so as to correspond to the curved shape from the bottom wall portion 101 to the side wall portion 102. Then, when the drainage inlet 21 is in the closed state, the plug lid 6 is housed in the recess 105, and the surface of the bathtub 100 (in the present embodiment, the surface of the bottom wall portion 101 and the side wall portion 102). From the top to the top surface of the plug lid 6 (plug lid main body 61), a continuous surface shape is formed (see FIG. 3). It should be noted that "making a continuous surface" is not only when the surface is strictly continuous, but also about several mm (for example, about 2 to 3 mm or less) between the surface of the bathtub 100 and the upper surface of the stopper lid 6. ) There are steps, dents, gaps, etc., and both sides are almost continuous.

Further, when the drainage inlet 21 is in the open state, the lowermost portion of the upper surface of the plug lid 6 (plug lid main body 61) along the inclination direction of the plug lid 6 is arranged in the recess 105. (See Figures 4 and 5).

As described in detail above, according to the present embodiment, when the drainage inlet 21 is in the open state, the plug lid 6 is in a state of being inclined obliquely with respect to the horizontal direction. Therefore, the water adhering to the upper surface of the stopper lid 6 flows down along the upper surface thereof, so that the residual water on the upper surface of the stopper lid 6 can be more reliably prevented. As a result, it is possible to more reliably prevent the adhesion of water stains and dirt to the upper surface of the stopper lid 6, and it is possible to improve the aesthetic appearance and hygiene.

Further, according to the present embodiment, in order to prevent water from remaining on the upper surface of the stopper lid 6, it is not necessary to make the upper surface shape of the stopper lid 6 an upwardly convex curved surface shape. Further, since the plug lid 6 is rotated by the operating shaft 42 arranged on the back side of the plug lid 6, the structure for rotating the plug lid 6 does not affect the shape of the upper surface of the plug lid 6. As a result, the degree of freedom regarding the shape of the upper surface of the stopper lid 6 can be dramatically increased.

Further, the upper surface of the stopper lid 6 has a downwardly convex curved surface shape, and when the drainage inlet 21 is in the closed state, the stopper lid 6 is housed in the recess 105, and the upper surface of the stopper lid 6 of the bathtub 100 It becomes a continuous surface over the surface. Therefore, as compared with the case where the upper surface of the stopper lid is curved upward as in the past, the portion from the upper surface of the stopper lid 6 to the surface of the bathtub 100 is smoother and has almost no unevenness. can do. This makes it possible to obtain a very good aesthetic appearance.

In addition, since there is almost no unevenness from the upper surface of the stopper lid 6 to the surface of the bathtub 100, the safety for the user can be enhanced. Further, it is possible to more effectively suppress the adhesion of dirt and water stains on the portion from the upper surface of the stopper lid 6 to the surface of the bathtub 100, and even if the dirt or the like is attached, the attached dirt or the like can be removed. It can be easily done.

At the same time, when the drainage inlet 21 is in the open state, the lowermost portion of the upper surface of the plug lid 6 along the inclination direction of the plug lid 6 is arranged in the recess 105. Therefore, when the drainage inflow port 21 is in the open state, the water that adheres to the upper surface of the stopper lid 6 and flows down along the upper surface can be more reliably guided into the recess 105. As a result, it is possible to prevent the water flowing down the upper surface of the stopper lid 6 from adhering to the peripheral portion of the recess 105 on the surface of the bathtub 100 and causing water stains and stains, and it is possible to obtain better aesthetics and hygiene. ..

Further, since the stopper lid 6 is arranged on the side wall portion 102 side, the stopper lid 6 can be in a state where it is less likely to get in the way for the user. For example, a "thing" (for example, a portable washbasin) can be placed in the bathtub 100. It will be convenient when you put a vessel etc.). In addition, it is possible to obtain an even better aesthetic appearance. Further, it is possible to more reliably prevent the stopper lid 6 from being trampled, and it is possible to more reliably prevent the stopper lid 6 and the like from being damaged or deformed due to the trampling, and the user from feeling uncomfortable due to the trampling.

In addition, the plug lid 6 is designed so that its rotation shaft RA extends along the width direction of the side wall portion 102 and rotates around the side opposite to the side wall portion 102 as the rotation center. .. Therefore, when viewed from the center side of the bottom wall portion 101 of the bathtub 100, the drainage inlet 21 and its peripheral portion are hidden by the plug 6 regardless of whether the drainage inlet 21 is in the open state or the closed state. It can be in a state of being drained. As a result, it is possible to make it difficult for the user to see the formed portion of the drainage inflow port 21 on which dirt or the like easily adheres and the peripheral portion thereof, and it is possible to further improve the aesthetic appearance.

Further, in the present embodiment, the drainage port member 2 is configured so that the amount of protrusion of the collar portion 23 with respect to the outer peripheral portion of the main body portion 22 is relatively smaller on the side wall portion 102 side. Therefore, the drainage port member 2 and thus the pedestal portion 5 and the plug lid 6 can be installed in a state of being closer to the side wall portion 102 side. As a result, the above-mentioned action effect by arranging the plug lid 6 on the side wall portion 102 side can be more reliably and more effectively exhibited.

Further, since the stopper lid 6 can be attached to and detached from the support portion 51, workability and convenience related to cleaning and maintenance, for example, can be improved.

Further, the plug lid 6 can be removed from the support portion 51 by moving it toward the side wall portion 102 side. Here, when the plug lid 6 is configured to be removable from the support portion 51 by moving the plug lid 6 to the side opposite to the side wall portion 102, the back surface of the plug lid 6 tilted diagonally becomes “ When the "thing" (for example, a cable such as a shower hose or a dryer) is caught, the "thing" is pulled to the opposite side of the side wall 102, so that the stopper lid 6 is unintentionally removed from the support 51. It may come off. On the other hand, in the present embodiment, even if the "thing" is pulled to the side opposite to the side wall portion 102 while the "thing" is caught on the back surface of the plug lid 6, the plug lid 6 is pulled from the support portion 51. The situation that the lid comes off usually does not occur. Therefore, it is possible to more reliably prevent the stopper lid 6 from being unintentionally removed, and it is possible to improve usability.

In addition, in the present embodiment, the upper surface of the plug lid 6 is pushed (pushed by hand or lightly stepped on) to move the operating shaft 42 up and down to switch the open / closed state of the drainage inlet 21. it can. It is convenient for the user because the plug 6 itself is the operation target when switching the open / closed state of the drainage inlet 21.

Further, in the present embodiment, since the upper surface of the plug lid 6 has a downwardly convex curved surface shape, the upper surface of the plug lid 6 can be easily pushed. Further, since it is possible to prevent dirt from adhering to the upper surface of the stopper lid 6, the operation of the stopper lid 6 is performed even when the upper surface of the stopper lid 6 is configured to be an operation target as in the present embodiment. It is possible to make it more difficult for the user to sometimes feel uncomfortable due to dirt or the like.

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 pedestal portion 5 is attached to the drain port member 2 so that it is indirectly fixed to the bathtub 100, but can be directly attached to the bathtub 100. It may be configured as.

(B) In the above embodiment, when the drainage inlet 21 is in the open state, the plug lid 6 is configured to be inclined obliquely with respect to the horizontal direction, but the drainage inlet 21 is in the closed state. When is, the stopper lid 6 may be configured to be in this state. Of course, even if the plug lid 6 is configured to be tilted diagonally with respect to the horizontal direction both when the drainage inlet 21 is in the open state and when the drainage inlet 21 is in the closed state. Good.

(C) In order to more reliably secure the drainage capacity when the drainage inlet 21 is opened, at least when the drainage inlet 21 is opened, the outer edge portion (for example, the stopper lid 61) of the stopper lid 6 (plug lid 61) is opened. , The outer edge portion located on the RA side of the rotation shaft) and the portion of the bathtub 100 where the recess 105 is formed may be formed so as to form a relatively large gap.

(D) In the above embodiment, when the drainage inlet 21 is in the open state, the lowermost portion of the upper surface of the plug lid 6 (plug lid main body 61) along the inclination direction of the plug lid 6 is inside the recess 105. However, the lowermost portion may be arranged vertically above the recess 105 when the drainage inflow port 21 is in the open state. Even in this case, the water that adheres to the upper surface of the stopper lid 6 and flows down along the upper surface can be more reliably guided into the recess 105, and as a result, better aesthetics and hygiene can be obtained. be able to.

Further, in the above embodiment, the bathtub 100 is provided with a relatively deep recess 105 capable of accommodating the plug lid 6, but the recess 105 is made relatively shallow, and the upper surface of the plug lid 6 is above the surface of the bathtub 100. It may be configured to protrude into. Of course, the bathtub 100 may not be provided with the recess 105.

(E) In the above embodiment, the drainage port member 2 and the pedestal portion 5 are separate bodies, but the drainage port member and the pedestal portion may be integrated. That is, one component in which the drainage port member and the pedestal portion are integrated may be used. For example, the pedestal portion may be integrated with the drainage port member by providing a portion corresponding to the support portion 51 on the upper surface portion of the drainage port member 2 in the above embodiment.

(F) In the above embodiment, the support portion 51 has a substantially annular shape, and is configured so that the rotation shaft portion 61a of the plug lid 6 is attached to the support portion 51, but the support portion has a rod shape. At the same time, the stopper lid 6 may be provided with a substantially annular portion to which the rod-shaped support portion is attached. That is, a substantially annular portion corresponding to the support portion 51 in the above embodiment may be provided on the stopper lid 6, and a rod-shaped portion corresponding to the rotation shaft portion 61a in the above embodiment may be provided on the pedestal portion 5. In this case, the rod-shaped portion provided on the pedestal portion 5 corresponds to the support portion.

(G) In the above embodiment, the plug lid 6 is rotatable around the side opposite to the side wall portion 102 (the center side of the bottom wall portion 101), but the rotation center of the plug lid 6 is It may be changed as appropriate. For example, the stopper lid 6 may be configured to be rotatable around the side wall portion 102 side as a rotation center.

(H) In the above embodiment, the drainage inlet 21 is closed when the plug lid 6 (packing portion 62) comes into contact with the drain port member 2, but the plug lid 6 is a pedestal portion. The drainage inlet 21 may be configured to be closed by contacting the 5 or the bathtub 100.

(I) The drain plug device 1 in the above embodiment has a structure (so-called direct push) in which the open / closed state of the drainage inlet 21 is switched by pushing the plug lid 6, but this structure is not always necessary. There is no. Therefore, for example, as shown in FIG. 7, with a transmission member 71a (for example, a wire or the like) for transmitting a driving force due to displacement of an operation unit (for example, an operation button or an operation handle) that is displaceable with respect to the bathtub 100. It has an operating shaft 71b that can move up and down by a driving force transmitted by the transmitting member 71a, and a tubular portion 71c that holds the operating shaft 71b in a reciprocating state on its inner circumference. By providing the drive mechanism 71 and operating the operation unit to displace it, the transmission member 71a and the operating shaft 71b may be moved, and the open / closed state of the drainage inlet 21 may be switched.

(J) In the above embodiment, the operating shaft mechanism 4 has a function of moving the stopper lid 6 by the operating shaft 42 and a function of installing the operating shaft 42 on the back side of the stopper lid 6, but both functions are provided. The operating shaft mechanism 4 may be configured by being composed of separate parts and combining these parts. For example, as shown in FIG. 7, by holding a drive mechanism 71 having a function of moving the stopper lid 6 by the operating shaft 71b and the drive mechanism 71 (cylindrical portion 71c), the stopper lid 6 is actuated on the back side. The operating shaft mechanism 7 may be configured by configuring the attachment member 72 having a function of installing the shaft 71b with separate parts and combining the drive mechanism 71 and the attachment member 72.

(K) In the above embodiment, the upper surface of the plug lid 6 (plug lid main body 61) has a downwardly convex curved surface shape. On the other hand, as shown in FIG. 7, when the drain plug device 1 is provided on the bottom wall portion 101, that is, when the drain plug device 1 is provided so as not to reach the side wall portion 102, the plug lid 6 (plug) By making the upper surface of the lid main body 61) flat, when the drainage inlet 21 is closed, the plug lid 6 is housed in the recess 105, and the bathtub 100 (bottom wall portion) is formed. It may be configured to form a continuous surface shape from the surface of 101) to the upper surface of the plug lid 6 (plug lid main body 61).

(L) In the above embodiment, the mounting hole 106 has an oval shape in a plan view, and the drainage port member 2 (main body 22) has a shape that matches the shape of the mounting hole 106. The shape of the mounting hole 106 may be changed as appropriate, and the shape of the drain port member 2 may be changed according to the shape change of the mounting hole 106. Therefore, for example, the mounting hole 106 may have a rectangular shape in a plan view (including a rectangular shape with rounded corners), and the drainage port member 2 (main body portion 22) may have a rectangular tubular shape according to this shape.

Further, the shape of the drainage inlet 21 may be appropriately changed, for example, a circular shape, a rectangular shape, a polygonal shape, or the like.

Further, the shapes of the recess 105 and the plug lid 6 can be appropriately deformed, and for example, these shapes may be a circular shape in a plan view or an oval shape.

(M) In the above embodiment, the plug lid 6 is provided from the bottom wall portion 101 to the side wall portion 102, but the plug lid 6 is provided only on the bottom wall portion 101 (in a state where it does not cover the side wall portion 102). May be good. Further, in this case, the plug lid 6 may be provided on the side wall portion 102 side (close to the side wall portion 102).

(N) In order to further enhance the sense of unity between the upper surface of the stopper lid 6 and the surface of the bathtub 100, the upper surface color of the stopper lid 6 and the surface color of the bathtub 100 may be the same.

(O) In the above embodiment, the drainage inlet 21 is formed by the inner peripheral opening of the drainage port member 2, but when the drainage port member 2 is not provided, for example, a hole formed through the bathtub 100 (o). For example, the drainage inlet may be configured by opening a hole (such as a mounting hole 106). Further, the drainage inlet may be formed by the inner opening of the pedestal portion 5.

(P) In the above embodiment, the upper end portion of the operating shaft 42 is configured to simply contact the stopper lid 6, but for example, by fitting the upper end portion of the operating shaft 42 to the stopper lid 6, the operating shaft The stopper lid 6 may be attached to the upper end of the 42. In this case, since a pulling force due to the reverse movement (downward movement) of the operating shaft 42 is applied to the plug lid 6, when the drainage inflow port 21 is closed, the packing portion 62 with respect to the drainage port member 2. Can be pressed more strongly to obtain better water stopping property.

(Q) In the above embodiment, the bathtub 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 bathtub. Therefore, for example, the technical idea of the present invention may be applied to a tank body other than a bathtub such as a washbasin or a kitchen sink.

1 ... Drain plug device, 2 ... Drain port member, 4, 7 ... Acting shaft mechanism, 5 ... Pedestal part, 6 ... Plug lid, 21 ... Drainage inlet, 22 ... Main body, 23 ... Flange, 42 ... Acting shaft , 51 ... Support, 100 ... Bathtub (tank body), 101 ... Bottom wall, 102 ... Side wall, 105 ... Recess, 106 ... Mounting hole.

Claims (7)

A stopper lid provided on the bottom side of the tank body to open and close the drainage inlet where water flows in during drainage,
The stopper lid is located on the back side of the stopper lid when viewed from the front, and is provided with an operating shaft mechanism having an operating shaft configured to be reciprocally movable.
A drain plug device capable of switching the open / closed state of the drain inlet by moving the plug lid with the reciprocating movement of the operating shaft.
It has a predetermined support and a pedestal that is directly or indirectly fixed to the tank body.
The plug lid is attached to the support portion in a rotatable state, and is configured to rotate with the reciprocating movement of the operating shaft.
The open / closed state of the drainage inlet is switched by rotating the plug lid with the reciprocating movement of the operating shaft, and the plug lid is opened when the drainage inlet is at least one of the open state and the closed state. A drain plug device characterized in that it is configured to be tilted diagonally with respect to the horizontal direction. The upper surface of the stopper lid has a flat surface shape or a downwardly convex curved surface shape.
When the drainage inlet is in the closed state, the plug lid is housed in the recessed recess provided in the tank body, and a continuous surface is formed from the surface of the tank body to the upper surface of the plug lid. The drain plug device according to claim 1, wherein the drain plug device is configured to form a shape. The drainage inlet is located in a recessed recess provided in the tank body.
The plug lid is configured to be tilted diagonally with respect to the horizontal direction when the drainage inlet is open.
When the drainage inlet is in the open state, the lowermost portion of the upper surface of the plug lid along the inclination direction of the plug lid is arranged in the recess or vertically above the recess. The drain plug device according to claim 1 or 2, wherein the drain plug device is characterized. The tank body has a bottom wall portion and a side wall portion erected from the peripheral edge of the bottom wall portion.
The plug lid is arranged on the side wall portion side, the rotation axis thereof extends along the width direction of the side wall portion, and the lid rotates around the side opposite to the side wall portion as a rotation center. The drain plug device according to any one of claims 1 to 3, wherein the drain plug device is configured to be possible. It is provided with a drainage port member to which the pedestal portion is attached while being inserted into the attachment hole formed through the tank body.
The drainage port member is
A tubular main body whose end opening constitutes the drainage inlet, and
It has a collar that protrudes outward from the upper end of the main body.
In a cross section that passes through the internal space of the main body portion and is orthogonal to the rotation axis of the plug lid, the amount of protrusion of the collar portion with respect to the outer peripheral portion of the main body portion is larger than that on the side opposite to the side wall portion. The drain plug device according to claim 4, wherein the side wall portion side is configured to be smaller. The plug lid is configured to be freely attachable and detachable to the support portion.
The drain plug device according to claim 4 or 5, wherein the plug lid can be removed from the support portion by moving the plug lid toward the side wall portion. The actuating shaft mechanism alternately holds the actuating shaft at a predetermined upper position and holds the actuating shaft at a predetermined lower position by pushing against the upper surface of the plug lid. The drain plug device according to any one of claims 1 to 6, wherein the drain plug device is configured to be possible.

Images