JP2021139174A - Drain plug device - Google Patents

Abstract

To provide a drain plug device in which a hair catcher can be removed together with a plug cover by pulling up the plug cover, and good convenience can be obtained.SOLUTION: The drain plug device 1 comprises a plug cover 6 and a hair catcher 7. The plug cover 6 has a guide part 613 provided with a locking protrusion part 613c, and the plug cover 6 in a normal state has a guide part 613 that is inserted between a middle cylinder part 71 and a holding part 43 of the hair catcher 7. The plug cover 6 is configured to be in a removable state in which the holding part 43 is removed from the guide part 613 by being pulled up in the normal state. Further, a middle cylinder part 71 is locked to the locking protrusion part 613c by pulling up the plug cover 6 in the normal state, and the hair catcher 7 together with the plug cover 6 is configured to be retractable. The plug cover 6 and the hair catcher 7 can be removed at a same time by pulling up the plug cover 6.SELECTED DRAWING: Figure 1

Description

The present invention relates to a drain plug device for opening and closing a drain port of a bathtub.

Conventionally, a drain plug device for switching an open / closed state of a drain port formed on the bottom wall of a bathtub has been known.

The drain plug device includes a plug lid having a packing portion and the like, a rod-shaped support shaft having a plug lid attached to the upper end portion, and a cylindrical holding portion for holding the support shaft in a vertically movable state. Is generally known. In such a drain plug device, the open / closed state of the drain port can be switched by moving the plug lid up and down as the support shaft moves up and down.

Further, the stopper lid is provided with a disk-shaped lid portion and a cylindrical guide portion formed so as to protrude on the back side of the lid portion, and when the support shaft moves up and down, it is formed on the outer periphery of the holding portion. The guide portion may be configured to move along the guide portion. With such a configuration, the movement of the stopper lid is guided by the guide portion or the like, and the inclination of the stopper lid or the like can be prevented more reliably (see, for example, Patent Document 1 and the like).

Japanese Unexamined Patent Publication No. 2015-214913

By the way, a hair catcher may be provided to collect foreign substances such as dust contained in the wastewater. Here, when applying the hair catcher to the drain plug device as described above, the hair catcher is attached to a cylindrical middle cylinder portion and a collecting portion (collecting foreign matter) extending outward from the outer circumference of the middle cylinder portion. It is conceivable that the hair catcher is installed so that the middle cylinder portion is arranged on the outer periphery of the guide portion. According to this configuration, it is possible to make the drain plug device compact while maintaining the movement guide function of the plug lid by the guide portion or the like.

However, in the above configuration, when the stopper lid is pulled up in order to clean or maintain the stopper lid and the hair catcher, only the stopper lid is removed and the hair catcher remains as it is. Therefore, from the viewpoint of convenience, a configuration in which both the plug lid and the hair catcher can be removed at the same time is desired.

The present invention has been made in view of the above circumstances, and an object of the present invention is a drain plug device in which the hair catcher can be removed together with the plug lid by pulling up the plug lid, and good convenience can be obtained. Is to provide.

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 plate-shaped lid portion and a tubular guide portion provided on the back side of the lid portion are provided, and a stopper lid for opening and closing the drainage port formed in the bathtub is provided.
With a rod-shaped support shaft,
It is provided with a cylindrical holding portion on its inner circumference, which is arranged so that the support shaft can move up and down.
Along with the vertical movement of the support shaft, the inner peripheral portion of the guide portion moves along the outer peripheral portion of the holding portion, and the plug lid moves up and down, so that the open / closed state of the drain port is switched. It is a drain plug device
A hair catcher including a cylindrical middle cylinder portion arranged on the outer circumference of the guide portion and a collecting portion extending outward from the outer circumference of the middle cylinder portion.
By mounting the hair catcher, a mounting portion for supporting the hair catcher is provided, and the hair catcher is mounted.
A locking protrusion that projects outward is provided on the outer circumference of the guide portion.
The guide portion is inserted between the middle cylinder portion and the holding portion of the hair catcher mounted on the mounting portion, and the support shaft can be moved up and down with the vertical movement of the support shaft. When the stopper lid is in the normal state,
When the plug lid is in the normal state, it can be pulled up to be in a removable state in which the holding portion is removed from the guide portion.
A drain plug characterized in that the middle cylinder portion is locked to the locking protrusion by pulling up the plug lid in the normal state, and the hair catcher can be pulled up together with the plug lid. Device.

According to the above means 1, when the plug lid is in the normal state (the state in which the drain port can be opened and closed by the vertical movement of the support shaft), when switching the open / closed state of the drain port, the inner peripheral portion of the guide portion is used. The stopper lid moves up and down while moving along the outer peripheral portion of the holding portion. Therefore, it is possible to suppress the inclination of the stopper lid, and it is possible to more reliably secure good water stopping property and aesthetic appearance.

Further, according to the above means 1, when the stopper lid is in the normal state, the hair catcher is installed with the middle cylinder portion arranged on the outer circumference of the guide portion. Therefore, it is possible to make the device compact (particularly compact in the vertical direction) while maintaining the movement guide function of the stopper lid by the guide portion or the like.

In addition, according to the above means 1, when the stopper lid is in the normal state, it can be pulled up to be in the removed state in which the holding portion is removed from the guide portion, and the stopper is in the normal state. By pulling up the lid, it is possible to lock the middle cylinder portion to the locking protrusion and pull up the hair catcher together with the stopper lid. That is, according to the above means 1, by pulling up the plug lid, the hair catcher can be pulled up together with the plug lid, and the plug lid and the hair catcher can be removed at once. Therefore, good convenience related to cleaning, maintenance, and the like can be obtained.

Means 2. The guide portion is elastically deformable along the radial direction and can be elastically deformed.
By elastically deforming the guide portion so as to displace the locking protrusion inward, the guide portion is pulled out from the middle cylinder portion, and the hair catcher and the plug lid can be separated. The drain plug device according to means 1, wherein the drain plug device is described.

According to the above means 2, the hair catcher and the stopper lid can be separated by pulling out the guide portion from the middle cylinder portion. Therefore, the hair catcher and the stopper lid can be individually cleaned and maintained. Thereby, better convenience can be obtained.

Means 3. The guide portion has a plurality of legs provided at intervals along the circumferential direction.
The drain plug device according to the means 2, wherein the locking protrusion is formed so as to project on the outer periphery of the lower end side of the leg.

According to the above means 3, the locking protrusions are formed so as to project from the lower end side outer periphery of all or any of the plurality of legs provided at intervals. Therefore, the portion of the guide portion where the locking protrusion is formed can be elastically deformed more easily, and the stopper lid and the hair catcher can be more easily separated or reunited. As a result, the convenience can be further improved.

Means 4. The inner circumference of the guide portion is provided with an inward protrusion portion that projects inward and moves along the outer peripheral surface of the holding portion when the plug lid is moved up and down in the normal state.
An outward protrusion that protrudes outward is provided on the outer periphery of the holding portion.
When the plug lid is in the normal state, at least when the plug lid moves relative to the support shaft along a direction in which the plug lid is separated from the upper end portion of the support shaft, the plug lid reaches the inward protrusion. On the other hand, the outward protrusion is configured to be lockable.
The drain plug device according to means 3, wherein the inward protrusion is provided on the inner circumference of a plurality of the legs which are not provided with the locking protrusion.

According to the above means 4, an inward protrusion is provided on the inner circumference of the guide portion, and an outward protrusion is provided on the outer periphery of the holding portion. When the plug lid moves relative to the support shaft along the direction in which the lid portion) separates (that is, when the plug lid floats from the upper end of the support shaft), it can be locked to the inward protrusion. .. Therefore, it is possible to more reliably prevent a situation in which the plug lid is unintentionally removed when the support shaft is moved forward (upward).

Further, according to the above means 4, the inward protrusion is provided on the side of the plurality of legs where the locking protrusion is not provided. That is, each leg does not include both the locking protrusion and the inward protrusion, but when the locking protrusion and the inward protrusion are provided, only one of the locking protrusion and the inward protrusion is provided. Therefore, it is possible to improve the ease of manufacturing the plug lid provided with the locking protrusion and the inward protrusion, and it is possible to improve the production efficiency and reduce the manufacturing cost.

Further, as in the means 6 described later, when the stopper lid and the hair catcher are separated and the hair catcher is placed on the mounting portion, a guide portion is provided between the middle cylinder portion and the holding portion. When it is possible to return the plug lid to the normal state by moving the plug lid downward so as to be inserted, the following effects can also be obtained by the means 4. That is, when the guide portion is inserted between the middle cylinder portion and the holding portion, it is necessary to elastically deform the leg portion having the locking protrusion inward, but the elastic deformation of this leg portion is hindered by the inward protrusion portion. There is no such thing as. Therefore, it becomes easy to return the plug lid to the normal state, and the convenience (usability) can be further improved.

Means 5. When the plug lid is in the normal state and the drain port is in the open state, the gap between the plurality of legs is not positioned above the middle cylinder. The drain plug device according to the featured means 3 or 4.

According to the above means 5, a plurality of legs are used when the plug lid is in the normal state and the drain port is in the open state, that is, when the drainage is in the normal drainage state and the drainage flows to the hair catcher side. The gap between the parts is set so that it is not located above the middle cylinder part. Therefore, it is possible to more reliably prevent the drainage flowing from above from flowing downstream through the gap between the legs. As a result, the function of collecting foreign substances by the hair catcher can be more effectively exerted.

Means 6. When the hair catcher is placed on the mounting portion in a state where the stopper lid and the hair catcher are separated, the guide portion is inserted between the middle cylinder portion and the holding portion. By moving the plug lid downward, the plug lid in the removed state can be returned to the normal state, and the plug lid can be returned to the normal state.
When the stopper lid and the hair catcher are not separated, the hair catcher is moved downward while the stopper lid and the hair catcher are moved downward so that the guide portion is arranged on the outer periphery of the holding portion. The drain plug device according to any one of means 2 to 5, wherein the plug lid in the removed state can be returned to the normal state by installing it on the mounting portion. ..

According to the above means 6, when the stopper lid and the hair catcher in the removed state are to be installed again, the stopper lid and the hair catcher are separated and the hair catcher is placed on the mounting portion. Even in this case, even when the stopper lid and the hair catcher are not separated and both are integrated, the stopper lid in the removed state can be returned to the normal state. That is, it is possible to both place the hair catcher first on the mounting portion and re-install the plug lid later, or re-install the plug lid and the hair catcher at the same time. Therefore, as compared with a configuration in which only one of the two is possible, problems related to the use of the device are less likely to occur, and convenience (usability) can be further improved.

Means 7. When the plug lid moves upward with the upward movement of the support shaft when the plug lid is in the normal state, the locking protrusion is maintained in a state of being separated from the middle cylinder portion. The drain plug device according to any one of means 1 to 6.

According to the above means 7, the hair catcher (middle cylinder portion) is not lifted by the locking protrusion when the plug lid is moved upward to switch the open / closed state of the drain port. Therefore, it is possible to improve the operability when switching the open / closed state of the drain port, and it is possible to more reliably exert the function of collecting foreign matter by the hair catcher.

Means 8. The inner circumference of the guide portion is provided with an inward protrusion portion that projects inward and moves along the outer peripheral surface of the holding portion when the plug lid is moved up and down in the normal state.
An outward protrusion that protrudes outward is provided on the outer periphery of the holding portion.
When the plug lid is in the normal state, at least when the plug lid moves relative to the support shaft along a direction in which the plug lid is separated from the upper end portion of the support shaft, the plug lid reaches the inward protrusion. On the other hand, the outward protrusion is configured to be lockable.
The guide portion is configured to be elastically deformable radially outward to at least the inward protrusion portion so as to be able to overcome the outward protrusion portion even when the middle cylinder portion is arranged on the outer periphery of the guide portion. The drain plug device according to any one of means 1 to 7, wherein the drain plug device is described.

The inward protrusion and the outward protrusion in the means 8 mean the same as the inward and outward protrusions in the means 4, and when the means 4 is subordinate to the means 8, the inward collision It is not intended that there are multiple parts or outward protrusions.

According to the above means 8, an inward protrusion is provided on the inner circumference of the guide portion, and an outward protrusion is provided on the outer periphery of the holding portion. When the plug lid moves relative to the support shaft along the direction in which the lid portion) separates (that is, when the plug lid floats from the upper end of the support shaft), it can be locked to the inward protrusion. .. Therefore, it is possible to more reliably prevent a situation in which the plug lid is unintentionally removed when the support shaft is moved forward (upward).

Further, according to the above means 8, the guide portion is radially outward to the extent that the inward protrusion portion can overcome the outward protrusion portion even when the middle cylinder portion is arranged on the outer circumference of the guide portion. It is said to be elastically deformable. That is, even in a state where elastic deformation of the guide portion in the radial direction is restricted by the presence of the middle cylinder portion, the guide portion is elastic in the radial direction at least to the extent that the inward protrusion portion can overcome the outward protrusion portion. It is said to be deformable. Therefore, the inward protrusion can overcome the outward protrusion and the guide portion can be pulled out from the holding portion, and the stopper lid and hair catcher during cleaning can be prevented from being unintentionally removed by the inward protrusion or the like. Can be removed without any trouble.

FIG. 3 is a cross-sectional view taken along the line JJ of FIG. 3 when the drain port is in the open state. FIG. 3 is a cross-sectional view taken along the line KK of FIG. 3 when the drain port is in the open state. It is a plan view of the stopper lid. FIG. 3 is a cross-sectional view taken along the line JJ of FIG. 3 when the drain port is closed. FIG. 3 is a cross-sectional view taken along the line KK of FIG. 3 when the drain port is closed. It is a perspective view of a stopper lid, a hair catcher, an attachment member and the like. It is sectional drawing which shows the plug lid and the hair catcher in the unseparated state. FIG. 5 is a cross-sectional view showing a cap and a hair catcher in an unseparated state in a cross section obtained by rotating the cross section of FIG. 7 by 90 degrees with the central axis of the cap as the rotation axis. It is sectional drawing which shows the state which only the stopper lid was removed, and the hair catcher was placed on the connecting part. It is sectional drawing which shows the state when the plug lid in the removed state is returned to the normal state with the hair catcher placed on the connecting part. It is sectional drawing which shows the state when the plug lid in a removed state is returned to a normal state in a state where a hair catcher and a plug lid are not separated.

Hereinafter, one embodiment will be described with reference to the drawings. As shown in FIG. 1, the drain plug device 1 is attached to the bathtub 100. The bathtub 100 is provided with a bottom wall portion 101 constituting the bottom surface thereof, and a drain port 102 is formed through the bottom wall portion 101.

As shown in FIGS. 1 and 2, the drain plug device 1 includes a drain port member 2, a pipe 3, an attachment member 4, a support shaft mechanism 5, a plug lid 6, and a hair catcher 7. FIG. 1 is a sectional view taken along line JJ of FIG. 3 (FIG. 3 is a schematic plan view of the plug lid 6) when the drain port 102 is in the open state, and FIG. 2 is a cross-sectional view of the drain port 102. It is a cross-sectional view taken along the line KK of FIG. Further, in FIG. 2 and the like, the bathtub 100 and the pipe 3 are not shown.

The drainage port member 2 is formed in a cylindrical shape, and is inserted into the drainage port 102 in a state where its own central axis and the central axis of the drainage port 102 are substantially aligned with each other. The drainage port member 2 includes a flange portion 21 formed so as to protrude outward in the radial direction at the upper end portion thereof, and a male screw portion 22 formed on the outer periphery below the collar portion 21.

The pipe 3 has a cylindrical shape, and together with the drainage port member 2, constitutes a drainage flow path that passes through the drainage port 102. The pipe 3 is provided with a female threaded portion 31 capable of screwing the male threaded portion 22 on the inner circumference of one end (upper end) thereof. Then, while inserting the drainage port member 2 into the drainage port 102, the male screw portion 22 is screwed into the female screw portion 31, and the bottom wall portion 101 is sandwiched between the flange portion 21 and the upper end surface of the pipe 3, so that the drainage port member 2 and the drainage port member 2 and The pipe 3 is connected and both are attached to the bathtub 100.

In the present embodiment, elastically deformable materials (for example, between the lower surface of the flange portion 21 and the upper surface of the bottom wall portion 101, and between the upper end surface of the pipe 3 and the lower surface of the bottom wall portion 101, respectively. An annular seal members 8 and 9 (see FIG. 1; not shown in FIG. 2 and the like) formed of resin, rubber, etc. are arranged. The seal members 8 and 9 prevent water leakage from between the drain port member 2 and the pipe 3 and the bathtub 100.

The attachment member 4 is for holding the support shaft mechanism 5 in the drainage flow path. The attachment member 4 includes an outer ring portion 41, a connecting portion 42, and a holding portion 43.

The outer ring portion 41 has an annular shape, and functions as an attachment portion of the attachment member 4 to the drain port member 2 and the pipe 3. In the present embodiment, the outer ring portion 41 is attached to the drain port member 2 by being placed on a protruding portion provided on the inner circumference of the drain port member 2. The outer ring portion 41 (attachment member 4) may be attached to the inner portion of the pipe 3, or may be attached to the inner portions of both of the drain port member 2 to the pipe 3.

The connecting portion 42 is a portion that connects the inner peripheral surface of the outer ring portion 41 and the outer peripheral surface of the holding portion 43, and is a plurality of connecting portions 42 in a state of being spaced along the circumferential direction of the holding portion 43 (in the present embodiment). , 4 at equal intervals) (see FIG. 6). The drainage will flow downstream through the gaps between the connecting portions 42. The number and shape of the connecting portions 42 may be changed as appropriate.

The holding portion 43 has a cylindrical shape as a whole, and holds the support shaft mechanism 5 on its inner circumference. Further, an outward protrusion 43a projecting outward is provided on the outer periphery of the upper end portion of the holding portion 43. The outward protrusion 43a in the present embodiment extends along the circumferential direction of the holding portion 43 and forms an annular shape in which a part thereof is interrupted.

The support shaft mechanism 5 is for moving the plug lid 6 up and down, and includes a case portion 51 and a support shaft 52. The case portion 51 has a cylindrical shape and is held by the holding portion 43 in a state where it cannot move up and down.

The support shaft 52 has a rod shape and is arranged on the inner circumference of the case portion 51 in a state where it can be reciprocated (moved up and down). As a result, the holding portion 43 is in a state in which the support shaft 52 is arranged on its inner circumference in a state in which the support shaft 52 can move up and down.

In addition, the support shaft 52 is configured so that the end portion of a transmission member 10 (for example, a metal wire) for transmitting a driving force due to displacement of an operation portion (for example, a push button or the like) (not shown) can be brought into contact with the support shaft 52. .. The transmission member 10 is arranged in a state where it can reciprocate on the inner circumference of the tubular tube member 11. The support shaft 52 is locked to the operation device (not shown) provided with the operation unit in a state where the transmission member 10 is moved forward (moved from the operation unit side to the support shaft mechanism 5 side). A lock mechanism (for example, a thrust lock mechanism) (not shown) is provided for locking in a state of forward movement (upward movement).

Further, an absorber spring 53 is arranged inside the support shaft 52. When a large downward force is applied to the plug lid 6 by the absorber spring 53, such as when the plug lid 6 is stepped on when the drain port 102 is in the open state (the state in which the support shaft 52 is moved upward). It is configured so that an excessive load is not applied to the transmission member 10, the attachment member 4, and the like. In FIG. 1 and the like, only the cross sections of the absorber spring 53 and the return spring 54 described below are schematically shown.

Further, a return spring 54 is provided between the case portion 51 and the support shaft 52 to apply a pulling force to the support shaft 52 in the reverse (downward) direction.

The stopper lid 6 is a stopper for opening and closing the drain port 102. The stopper lid 6 is formed of a stopper lid main body 61 made of resin or the like and an elastically deformable material (for example, rubber, resin, etc.), and an annular packing portion 62 attached to the stopper lid main body 61. Have.

The stopper lid main body 61 includes a disk-shaped lid portion 611, and a support shaft insertion portion 612 and a guide portion 613 provided on the back side of the lid portion 611, respectively.

The support shaft insertion portion 612 has a cylindrical shape protruding downward from the back surface of the lid portion 611, and is provided concentrically with the guide portion 613 inside the guide portion 613. The support shaft insertion portion 612 is a portion through which the tip end portion of the support shaft 52 is inserted, and has a function of preventing a displacement of the stopper lid 6 along the horizontal direction. The upper end of the support shaft 52 can come into contact with the portion surrounded by the support shaft insertion portion 612 on the back surface of the lid portion 611, and as a result, the plug lid 6 moves the support shaft 52 forward (). It moves up with (upward movement) and moves down with the return (downward movement) of the support shaft 52.

The guide portion 613 has a cylindrical shape that projects downward from the back surface of the lid portion 611. The guide portion 613 is arranged on the outer circumference of the holding portion 43, and moves along the outer circumference of the holding portion 43 with the reciprocating movement (vertical movement) of the support shaft 52. The guide portion 613 serves to guide the reciprocating movement of the plug lid 6 in a state in which the inclination of the plug lid 6 and the occurrence of misalignment along the horizontal direction are more reliably prevented.

Further, the guide portion 613 includes a body portion 613a and a leg portion 613b (see FIGS. 7 and 8). FIG. 8 is a cross-sectional view showing the plug lid 6 and the hair catcher 7 in a cross section obtained by rotating the cross section of FIG. 7 by 90 degrees with the central axis of the plug lid 6 as the rotation axis.

The body portion 613a has a cylindrical shape that protrudes downward from the central portion of the back surface of the stopper lid main body portion 61. On the other hand, the leg portion 613b extends downward from the lower portion of the body portion 613a in a direction parallel to the central axis of the plug lid 6 (body portion 613a). A plurality of leg portions 613b are provided at intervals along the circumferential direction of the guide portion 613 (in the present embodiment, four legs are provided at equal intervals). Further, the leg portion 613b has an inverted triangular shape when viewed from the front, and the lower portion thereof has a rounded curved shape. Further, at least the leg portion 613b of the guide portion 613 is elastically deformable along the radial direction of the guide portion 613.

In addition, a locking protrusion 613c protruding outward is provided on the outer periphery of the guide portion 613. In the present embodiment, the locking protrusion 613c is formed so as to project from the lower end side outer periphery of the leg portion 613b. However, in the present embodiment, not all the leg portions 613b are provided with the locking protrusion 613c, and the leg portion 613b provided with the locking protrusion 613c and the locking protrusion 613c are not provided. The legs 613b and the legs 613b are alternately provided along the circumferential direction of the guide portion 613.

In addition, an inward projecting portion 613d projecting inward is provided on the inner circumference of the guide portion 613. In the present embodiment, the inward protrusion 613d is formed so as to project on the inner circumference of the leg portion 613b and above the formation position of the locking protrusion 613c. However, in the present embodiment, not all the leg portions 613b are provided with the inward protrusion 613d, and the inward protrusion 613d is one of the plurality of leg portions 613b not provided with the locking protrusion 613c. It is provided on the circumference.

The packing portion 62 is formed in an annular shape by an elastically deformable material (for example, rubber, resin, etc.). When the drain port 102 is closed by the stopper lid 6, the entire circumferential direction of the packing portion 62 comes into contact with the drain port member 2.

The open / closed state of the drain port 102 is switched as follows. That is, when the packing portion 62 is in contact with the drain port member 2 (that is, when the drain port 102 is in the closed state) (see FIGS. 4 and 5), the operation portion is operated (for example, pressed) to transmit. By moving the member 10 forward, the transmission member 10 pushes up the support shaft 52 against the force from the return spring 54. FIG. 4 is a cross-sectional view taken along the line JJ of FIG. 3 when the drainage port 102 is in the closed state, and FIG. 5 is a cross-sectional view taken along the line KK of FIG. 3 when the drainage port 102 is in the closed state. It is a figure.

When the support shaft 52 is pushed up by the transmission member 10, the stopper lid 6 moves upward while the inner peripheral portion of the guide portion 613 moves upward along the outer peripheral portion (particularly the outward protrusion portion 43a) of the holding portion 43. Then, when the operation to the operation unit is released while the support shaft 52 is sufficiently moved upward, the transmission member 10 is locked in a state where the transmission member 10 is moved forward by the lock mechanism while the support shaft 52 is slightly lowered. As a result, the support shaft 52 is locked in a state of being moved upward, and the packing portion 62 is separated from the drain port member 2, so that the drain port 102 is switched to the open state.

On the other hand, if the operation unit is operated again while the drain port 102 is in the open state, the transmission member 10 moves back and forth, and the lock of the transmission member 10 by the lock mechanism is released. Then, when the operation (for example, pressing) on the operating portion is released, the support shaft 52 moves downward due to the urging force from the return spring 54. As a result, the stopper lid 6 moves downward while the inner peripheral portion of the guide portion 613 moves downward along the outer peripheral portion of the holding portion 43. As a result, the entire peripheral direction of the packing portion 62 comes into contact with the drain port member 2, so that the drain port 102 is switched to the closed state. In the present embodiment, when the drain port 102 is closed, the back surface of the lid portion 611 is separated from the upper end portion of the support shaft 52. As a result, the contact pressure of the packing portion 62 with respect to the drain port member 2 can be sufficiently increased when water is stored in the bathtub 100.

The hair catcher 7 is for collecting foreign substances such as dust contained in the wastewater. The hair catcher 7 includes a middle cylinder portion 71 and a collecting portion 72. The hair catcher 7 in this embodiment has a vertically symmetrical shape.

The middle cylinder portion 71 is a cylindrical portion located at the center of the hair catcher 7, and is arranged on the outer periphery of the guide portion 613. The collecting portion 72 is a portion that extends from the outer periphery of the middle cylinder portion 71 to the outside and is formed through a large number of holes for water passage. The collection of foreign matter is mainly performed by the collection unit 72.

Further, the hair catcher 7 is placed in the inner space (that is, the drainage flow path) of the drainage port member 2 by being placed and supported on the connecting portion 42. In the present embodiment, the connecting portion 42 on which the middle cylinder portion 71 is placed corresponds to the “placed portion”.

In the drain plug device 1 described above, in the plug lid 6, the guide portion 613 is inserted between the middle cylinder portion 71 and the holding portion 43 of the hair catcher 7 placed on the connecting portion 42, and the plug lid 6 is inserted. It is in a state where it can move up and down as the support shaft 52 moves up and down (states shown in FIGS. 1, 2, 4, and 5).

When the plug lid 6 is in the normal state, the inward protrusion 613d moves along the outer peripheral surface of the holding portion 43 when the plug lid 6 moves up and down due to the vertical movement of the support shaft 52. Further, when the stopper lid 6 is in the normal state, the hair catcher 7 is installed with the middle cylinder portion 71 arranged on the outer circumference of the guide portion 613.

In addition, in the present embodiment, when the plug lid 6 is in the normal state and the drain port 102 is in the closed state, the locking protrusion 613c is separated from the middle cylinder portion 71. However, even when the plug lid 6 moves upward with the upward movement of the support shaft 52 when the plug lid 6 is in the normal state, the locking protrusion 613c is maintained in a state of being separated from the middle cylinder portion 71. (See Fig. 1). That is, in the present embodiment, when the plug lid 6 is in the normal state, basically, regardless of whether the drain port 102 is in the open state or the closed state, the middle cylinder portion 71 to the locking protrusion 613c Are configured to be separated.

However, when the plug lid 6 is in the normal state, for example, the support shaft 52 moves vigorously upward to the support shaft 52 at least along the direction in which the plug lid 6 is separated from the upper end portion of the support shaft 52. On the other hand, when the plug lid 6 moves relative to each other, the locking protrusion 613c is configured to come into contact with the middle cylinder portion 71. Here, in the present embodiment, when the plug lid 6 moves relative to the support shaft 52 at least in the direction in which the plug lid 6 is separated from the upper end portion of the support shaft 52, the locking protrusion is first placed on the middle cylinder portion 71. When the plug lid 6 is further moved relative to the 613c, the outward protrusion 43a is locked with respect to the inward protrusion 613d.

Further, in the present embodiment, when the plug lid 6 is in the normal state and the drain port 102 is in the open state, the gap between the leg portions 613b is not located above the middle cylinder portion 71. , The shapes of the leg portion 613b and the middle cylinder portion 71 are set. That is, when the plug lid 6 is in the normal state and the drain port 102 is in the open state, the gap between the leg portions 613b is not exposed to the outside at a position above the middle cylinder portion 71. It is configured in.

Further, when the plug lid 6 is in the normal state, the connecting portion 42 is arranged in the gap between the leg portions 613b, and as a result, the plug with the central axis of the plug lid 6 (guide portion 613) as the rotation axis. The rotation of the lid 6 is restricted. This makes it possible to improve the appearance quality and the like.

Further, in the present embodiment, the stopper lid 6 can be pulled up in the normal state so that the holding portion 43 can be removed from the guide portion 613 (see FIGS. 7 and 8). Has been done. At this time, as the plug lid 6 in the normal state is pulled up, the middle cylinder portion 71 is locked to the locking protrusion 613c, and as a result, the hair catcher 7 can be pulled up together with the plug lid 6. It has become.

In the present embodiment, even if the stopper lid 6 is in the normal state and the middle cylinder portion 71 is arranged on the outer periphery of the guide portion 613, the guide portion 613 is at least inwardly projected 613d. Is elastically deformable to the extent that it can overcome the outward protrusion 43a. Therefore, when the plug lid 6 is pulled up so that the plug lid 6 in the normal state is in the removed state, the guide portion 613 is moved outward in the radial direction so that the inward protrusion 613d gets over the outward protrusion 43a. It is elastically deformed, and as a result, the stopper lid 6 and the hair catcher 7 can be removed.

Further, in the state where the plug lid 6 and the hair catcher 7 are pulled up and removed, the guide portion 613 (leg portion 613b) is elastically deformed so as to displace the locking protrusion 613c inward, thereby causing the middle cylinder portion 71 to be removed. The guide portion 613 can be pulled out to separate the stopper lid 6 and the hair catcher 7. In the present embodiment, by moving the hair catcher 7 in a direction away from the lid portion 611, the locking protrusion 613c is locked by the middle cylinder portion 71 without the user intentionally applying force to the guide portion 613. It is pushed inward, and as a result, the guide portion 613 (leg portion 613b) can be elastically deformed so as to displace the locking protrusion 613c inward.

On the other hand, the separated plug lid 6 and hair catcher 7 elastically deform the guide portion 613 (leg portion 613b) so as to displace the locking protrusion 613c inward, and the guide portion 613 is attached to the middle cylinder portion 71. By inserting it, it can be integrated again. As described above, since the hair catcher 7 has a vertically symmetrical shape, it is not necessary to pay particular attention to the orientation of the hair catcher 7 when the hair catcher 7 and the stopper 6 are integrated.

In addition, when the stopper lid 6 and the hair catcher 7 are pulled up and removed, if the stopper lid 6 and the hair catcher 7 are separated, only the separated hair catcher 7 is placed on the connecting portion 42 and drained. It is possible to arrange the mouth member 2 in the inner space (see FIG. 9). Further, in this state, the stopper lid 6 separated from the hair catcher 7 is moved downward so that the guide portion 613 is inserted between the middle cylinder portion 71 and the holding portion 43 (see FIG. 10). While elastically deforming the leg portion 613b having the stop portion 613c inward, the guide portion 613 is inserted between the middle cylinder portion 71 and the holding portion 43, and finally, the plug 6 in the removed state is said. It is possible to return to the normal state. As described above, since the leg portion 613b has an inverted triangular shape when viewed from the front and the lower portion thereof has a rounded curved shape, the stopper 6 in the removed state is returned to the normal state. At that time, the lower part of the leg portion 613b is less likely to be caught by the connecting portion 42, and it is relatively easy to return the plug lid 6 to the normal state.

On the other hand, when the stopper lid 6 and the hair catcher 7 are pulled up and removed, if the stopper lid 6 and the hair catcher 7 are not separated (the middle cylinder portion 71 is arranged on the outer circumference of the guide portion 613), the inner cylinder portion 71 is arranged. By moving the stopper lid 6 and the hair catcher 7 downward so that the guide portion 613 is arranged on the outer periphery of the holding portion 43 (see FIG. 11), the hair catcher 7 is placed on the connecting portion 42 while being placed on the connecting portion 42. It is also possible to return the plug 6 in the removed state to the normal state.

As described in detail above, according to the present embodiment, when the plug lid 6 is in the normal state, when switching the open / closed state of the drain port 102, the inner peripheral portion (particularly the inward protrusion portion) of the guide portion 613 is used. The plug 6 moves up and down while the 613d) moves along the outer peripheral portion of the holding portion 43. Therefore, the inclination of the stopper lid 6 can be suppressed, and good water stopping and aesthetic appearance can be ensured more reliably.

Further, when the stopper lid 6 is in the normal state, the hair catcher 7 is installed with the middle cylinder portion 71 arranged on the outer circumference of the guide portion 613. Therefore, the drain plug device 1 can be made compact (particularly compact in the vertical direction) while maintaining the movement guide function of the plug lid 6 by the guide portion 613 or the like. In particular, with respect to the bathtub 100, it is difficult to secure a large space below the bathtub 100, so that the compactification of the drain plug device 1 is particularly effective.

In addition, the stopper lid 6 can be pulled up to be in the removed state in which the holding portion 43 is removed from the guide portion 613, and the stopper lid 6 in the normal state can be brought into the removed state. By pulling up 6, the middle cylinder portion 71 can be locked to the locking protrusion 613c, and the hair catcher 7 can be pulled up together with the plug lid 6. That is, by pulling up the plug lid 6, the hair catcher 7 can be pulled up together with the plug lid 6, and the plug lid 6 and the hair catcher 7 can be removed at the same time. Therefore, good convenience related to cleaning, maintenance, and the like can be obtained.

Further, in the state where the stopper lid 6 and the hair catcher 7 are removed, the guide portion 613 can be pulled out from the middle cylinder portion 71 to separate the hair catcher 7 and the stopper lid 6. Therefore, the hair catcher 7 and the stopper lid 6 can be individually cleaned and maintained. Thereby, better convenience can be obtained.

Further, the locking protrusions 613c are formed so as to project from the outer periphery on the lower end side of the legs 613b provided at intervals. Therefore, the portion of the guide portion 613 where the locking protrusion 613c is formed can be more easily elastically deformed, and the stopper lid 6 and the hair catcher 7 can be more easily separated or reunited. .. As a result, the convenience can be further improved.

In addition, an inward protrusion 613d is provided on the inner circumference of the guide portion 613, and an outward protrusion 43a is provided on the outer periphery of the holding portion 43, and the outward protrusion 43a is plugged from the upper end of the support shaft 52. When the plug lid 6 moves relative to the support shaft 52 along the direction in which the lid 6 (lid portion 611) is separated (that is, when the plug lid 6 floats from the upper end portion of the support shaft 52), the inward protrusion portion It can be locked to 613d. Therefore, it is possible to more reliably prevent a situation in which the stopper lid 6 is unintentionally disengaged when the support shaft 52 is moved forward (upward).

Further, particularly in the present embodiment, when the plug lid 6 moves relative to the support shaft 52 along the direction in which the plug lid 6 is separated from the upper end portion of the support shaft 52, the locking protrusion 613c with respect to the middle cylinder portion 71 And the outward protrusion 43a with respect to the inward protrusion 613d can be locked. Therefore, not only the guide portion 43 (outward protrusion 43a) but also the hair catcher 7 (middle cylinder portion 71) is used to more reliably prevent the plug lid 6 from being unintentionally detached due to the upward movement of the support shaft 52. Can be planned.

Further, the inward protrusion 613d is provided on the side of the plurality of legs 613b where the locking protrusion 613c is not provided. That is, each leg portion 613b does not include both the locking protrusion 613c and the inward protrusion 613d, but when the locking protrusion 613c and the inward protrusion 613d are provided, only one of them is provided. There is. Therefore, it is possible to improve the ease of manufacturing the plug lid 6 provided with the locking protrusion 613c and the inward protrusion 613d, and it is possible to improve the production efficiency and reduce the manufacturing cost.

Further, in the present embodiment, when the stopper lid 6 is in the normal state and the drain port 102 is in the open state, that is, when the drainage is in the normal drainage state and the drainage flows to the hair catcher 7 side. , The gap between the plurality of leg portions 613b is set so as not to be located above the middle cylinder portion 71. Therefore, it is possible to more reliably prevent the drainage flowing from above from flowing downstream through the gap between the legs 613b. As a result, the foreign matter collecting function of the hair catcher 7 can be more effectively exerted.

In addition, in the present embodiment, even when the stopper lid 6 and the hair catcher 7 are separated and the hair catcher 7 is placed on the connecting portion 42 (that is, when only the stopper lid 6 is removed). Even when the plug lid 6 and the hair catcher 7 are not separated and both are integrated (that is, when the plug lid 6 and the hair catcher 7 are removed), the plug lid 6 in the removed state is described. Can be returned to the normal state. That is, it is possible to place only the hair catcher 7 on the connecting portion 42 first and re-install the stopper lid 6 later, and to re-install the stopper lid 6 and the hair catcher 7 at the same time. ing. Therefore, as compared with a configuration in which only one of the two is possible, problems related to the use of the drain plug device 1 are less likely to occur, and convenience (usability) can be further improved.

Further, when only the hair catcher 7 is placed on the connecting portion 42 first and the stopper lid 6 is re-installed later, the locking protrusion is formed when the guide portion 613 is inserted between the middle cylinder portion 71 and the holding portion 43. It is necessary to elastically deform the leg portion 613b having the portion 613c inward, but since the leg portion 613b having the locking protrusion 613c does not have the inward protrusion 613d, the leg portion 613b is provided by the inward protrusion 613d. The elastic deformation of the Therefore, it becomes easy to return the plug lid 6 to the normal state, and the convenience (usability) can be further improved.

Further, in the present embodiment, even when the plug lid 6 moves upward with the upward movement of the support shaft 52 when the plug lid 6 is in the normal state, the locking protrusion 613c is separated from the middle cylinder portion 71. It is maintained in a state. Therefore, when the plug lid 6 is moved upward to switch the open / closed state of the drain port 102, the hair catcher 7 (middle cylinder portion 71) is not lifted by the locking protrusion 613c. Therefore, it is possible to improve the operability when switching the open / closed state of the drain port 102, and it is possible to more reliably exert the function of collecting foreign matter by the hair catcher 7.

Further, the guide portion 613 is elastically deformed radially outward to the extent that the inward protrusion 613d can overcome the outward protrusion 43a even when the middle cylinder portion 71 is arranged on the outer periphery of the guide portion 613. It is possible. That is, even if the presence of the middle cylinder portion 71 restricts the elastic deformation of the guide portion 613 outward in the radial direction, the guide portion 613 is at least to the extent that the inward protrusion 613d can overcome the outward protrusion 43a. It is elastically deformable outward in the radial direction. Therefore, the inward protrusion 613d can get over the outward protrusion 43a and pull out the guide portion 613 from the holding portion 43, and the inward protrusion 613d or the like can prevent the plug lid 6 from being unintentionally removed during cleaning, etc. The stopper lid 6 and the hair catcher 7 can be removed without any trouble.

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 "placed portion" that supports the hair catcher 7 is composed of the connecting portion 42, but the "placed portion" may be formed by a portion other than the connecting portion 42. .. For example, the outer peripheral portion of the collecting portion 72 may be configured to be mounted on the outer ring portion 41, and the outer ring portion 41 may form a “mounting portion”. Further, the outer peripheral portion of the collecting portion 72 may be configured to be mounted on the drainage port member 2, and the drainage port member 2 may form a “mounting portion”. Further, the "mounting portion" may be formed by the locking protrusion 613c.

(B) In the above embodiment, the locking protrusion 613c is formed so as to project only on a predetermined leg portion 613b among the plurality of leg portions 613b, but may be formed on all of the plurality of leg portions 613b. good. Further, the inwardly projecting portion 613d may be provided on all of the plurality of leg portions 613b. Therefore, the leg portion 613b may include both the locking protrusion 613c and the inward protrusion 613d. Of course, there may be a leg portion 613b that does not have a locking protrusion 613c and an inward protrusion 613d.

(C) The number of legs 613b in the above embodiment is an example, and the number of legs 613b can be appropriately changed as long as it is two or more.

(D) In the above embodiment, the support shaft 52 is inserted through the support shaft insertion portion 612 with a gap, and the pull-in force applied from the return spring 54 is not applied to the plug lid 6. Has been done. On the other hand, the support shaft 52 can be fitted or screwed into the support shaft insertion portion 612, or the support shaft 52 can be locked to the support shaft insertion portion 612 along the moving direction of the support shaft 52. By configuring or the like, when the support shaft 52 is driven back (downward), the pulling force from the return spring 54 may be applied to the plug 6 via the support shaft 52.

(E) In the above embodiment, the support shaft mechanism 5 includes a case portion 51 and a support shaft 52, but the case portion 51 is omitted, and the holding portion 43 is configured to function as the case portion 51. You may.

(F) In the above embodiment, the drain port 102 is closed when the plug lid 6 (packing portion 62) comes into contact with the drain port member 2, but the plug lid 6 (packing portion 62) May be configured so that the drain port 102 is closed when the water is in contact with the bottom wall portion 101.

1 ... Drain plug device, 6 ... Plug lid, 7 ... Hair catcher, 42 ... Connecting part (mounting part), 43 ... Holding part, 43a ... Outward protrusion, 52 ... Support shaft, 71 ... Middle cylinder part, 72 ... collection part, 100 ... bathtub, 102 ... drainage port, 611 ... lid part, 613 ... guide part, 613b ... leg part, 613c ... locking protrusion, 613d ... inward protrusion.

Claims (8)

A plate-shaped lid portion and a tubular guide portion provided on the back side of the lid portion are provided, and a stopper lid for opening and closing the drainage port formed in the bathtub is provided.
With a rod-shaped support shaft,
It is provided with a cylindrical holding portion on its inner circumference, which is arranged so that the support shaft can move up and down.
Along with the vertical movement of the support shaft, the inner peripheral portion of the guide portion moves along the outer peripheral portion of the holding portion, and the plug lid moves up and down, so that the open / closed state of the drain port is switched. It is a drain plug device
A hair catcher including a cylindrical middle cylinder portion arranged on the outer circumference of the guide portion and a collecting portion extending outward from the outer circumference of the middle cylinder portion.
By mounting the hair catcher, a mounting portion for supporting the hair catcher is provided, and the hair catcher is mounted.
A locking protrusion that projects outward is provided on the outer circumference of the guide portion.
The guide portion is inserted between the middle cylinder portion and the holding portion of the hair catcher mounted on the mounting portion, and the support shaft can be moved up and down with the vertical movement of the support shaft. When the stopper lid is in the normal state,
When the plug lid is in the normal state, it can be pulled up to be in a removable state in which the holding portion is removed from the guide portion.
A drain plug characterized in that the middle cylinder portion is locked to the locking protrusion by pulling up the plug lid in the normal state, and the hair catcher can be pulled up together with the plug lid. Device. The guide portion is elastically deformable along the radial direction and can be elastically deformed.
By elastically deforming the guide portion so as to displace the locking protrusion inward, the guide portion is pulled out from the middle cylinder portion, and the hair catcher and the plug lid can be separated. The drain plug device according to claim 1, wherein the drain plug device is characterized. The guide portion has a plurality of legs provided at intervals along the circumferential direction.
The drain plug device according to claim 2, wherein the locking protrusion is formed so as to project on the outer periphery of the lower end side of the leg. The inner circumference of the guide portion is provided with an inward protrusion portion that projects inward and moves along the outer peripheral surface of the holding portion when the plug lid is moved up and down in the normal state.
An outward protrusion that protrudes outward is provided on the outer periphery of the holding portion.
When the plug lid is in the normal state, at least when the plug lid moves relative to the support shaft along a direction in which the plug lid is separated from the upper end portion of the support shaft, the plug lid reaches the inward protrusion. On the other hand, the outward protrusion is configured to be lockable.
The drain plug device according to claim 3, wherein the inward protrusion is provided on the inner circumference of a plurality of the legs which are not provided with the locking protrusion. When the plug lid is in the normal state and the drain port is in the open state, the gap between the plurality of legs is not positioned above the middle cylinder. The drain plug device according to claim 3 or 4. When the hair catcher is placed on the mounting portion in a state where the stopper lid and the hair catcher are separated, the guide portion is inserted between the middle cylinder portion and the holding portion. By moving the plug lid downward, the plug lid in the removed state can be returned to the normal state, and the plug lid can be returned to the normal state.
When the plug lid and the hair catcher are not separated, the hair catcher is moved downward while moving the plug lid and the hair catcher downward so that the guide portion is arranged on the outer periphery of the holding portion. The invention according to any one of claims 2 to 5, wherein the stopper lid in the removed state can be returned to the normal state by installing it on the mounting portion. Drain plug device. When the plug lid moves upward with the upward movement of the support shaft when the plug lid is in the normal state, the locking protrusion is maintained in a state of being separated from the middle cylinder portion. The drain plug device according to any one of claims 1 to 6. The inner circumference of the guide portion is provided with an inward protrusion portion that projects inward and moves along the outer peripheral surface of the holding portion when the plug lid is moved up and down in the normal state.
An outward protrusion that protrudes outward is provided on the outer periphery of the holding portion.
When the plug lid is in the normal state, at least when the plug lid moves relative to the support shaft along a direction in which the plug lid is separated from the upper end portion of the support shaft, the plug lid reaches the inward protrusion. On the other hand, the outward protrusion is configured to be lockable.
Even when the middle cylinder portion is arranged on the outer circumference of the guide portion, the guide portion is configured to be elastically deformable in the radial direction to the extent that the inward protrusion portion can overcome the outward protrusion portion. The drain plug device according to any one of claims 1 to 7, wherein the drain plug device is characterized by the above.

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