JP2024015561A - Drain plug device for kitchen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain plug device for a kitchen, that allows foreign matter to smoothly flow into a collection basket while making it possible to easily switch an open/closed state of an exhaust port.

SOLUTION: A drain plug device 1 comprises: a recess part forming part 102; a plug cover side mechanism part 4; and a plug cover 7 provided with an annular packing part 72, wherein the recess part forming part 102 has an inflow entrance forming surface 103. The plug cover side mechanism part 4 is capable of maintaining the plug cover 7 in a stopped state at a predetermined basic open position. Further, a predetermined surface of the inflow entrance forming surface 103 has a tapered surface shape with a constant inclination angle or a downwardly concave curved surface shape. Furthermore, when the plug cover 7 is placed at a basic open position, a top surface of a cover part 71 is flush with the top surface of a base part 101, further, a distance along a horizontal direction from a packing part 72 to the inflow entrance forming surface 103 is set to be greater than or equal to the distance along a vertical direction from a vertically closest part to the inflow entrance forming surface 103.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a kitchen drain plug device provided corresponding to a recess into which waste water flows.

BACKGROUND ART Conventionally, it has been widely practiced to form a recess into a kitchen sink into which wastewater flows, and to provide a collection basket corresponding to the recess for storing foreign matter (for example, garbage, etc.). Furthermore, in order to improve the appearance, a cover (drainage lid) may be provided in the recess to make it difficult to see foreign matter in the collection basket from the outside (see, for example, Patent Document 1). The cover does not have the function of opening and closing the drain port of the sink located at the bottom of the recess, and the drain port is generally always open.

By the way, for example, for reasons such as soaking and washing, there are cases where it is desirable to close the drain and store water in the sink. Therefore, for example, a sheet-shaped stopper lid (for example, a water stop cap, etc.) is separately prepared to close the drain, and the drain is closed by setting the stopper cover so as to close the recess. (For example, see Patent Document 2, etc.).

However, when using such a sheet-shaped tap lid, the tap lid must be set and removed each time the drain port is to be switched between open and closed states. Therefore, the work involved in switching the open/closed state of the drain port becomes troublesome and time-consuming. In addition, it is not easy to properly manage the removed lid, and in the worst case, there is a risk that the lid may be lost. Furthermore, foreign matter and dirt may adhere to the faucet lid, so it is inconvenient to touch the faucet lid with foreign matter or leave it outside the sink when switching the open/closed state of the drain. It is not desirable in terms of sex and hygiene.

Therefore, it is conceivable to apply a drain plug device provided in a bathtub or washbowl to a kitchen sink. The drain plug device has a cap lid that can be moved up and down, and the open/closed state of the drain port is switched by remotely controlling the cap lid (see, for example, Patent Document 3). By applying such a drain plug device to a sink, the work involved in switching the drain port between open and closed becomes extremely easy, and there is no need to manage the plug lid, making it possible to prevent the lid from being lost. . Furthermore, since there is no need to touch the stopper lid or place the stopper cover outside the sink when switching the open/closed state of the drain port, convenience and hygiene can be improved.

Japanese Patent Application Publication No. 2021-32001 Utility model registration No. 3230140 JP2020-29738A

However, when the above-mentioned drain plug device is simply applied to a sink, the stopper lid, especially the packing part provided on the outer periphery of the stopper lid, gets in the way and prevents foreign matter from flowing smoothly into the collection basket. There is a possibility that such a situation may occur.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a kitchen that allows foreign substances to smoothly flow into the collection basket while making it possible to easily switch the open/closed state of the drain port. An object of the present invention is to provide a drain plug device for

In the following, each means suitable for solving the above object will be explained in terms of sections. Note that effects specific to the corresponding means will be added as necessary.

Means 1. A recess is formed that has an inlet space that opens upward, and a basket arrangement space that is continuous with the inlet space and located below the inlet space, and a drain port that communicates with the recess is located at the bottom. a recessed part formed in a kitchen sink;
a stopper lid having a plate-shaped lid portion with an annular packing portion provided on the outer periphery;
A rod-shaped support shaft that can move vertically,
a basket main body portion located below the lid portion and having a collection space recessed downward; and a basket side cylinder portion through which the support shaft can be inserted; a collection basket capable of accommodating foreign matter that has flowed into the inlet space into the collection space;
The stopper lid can be moved up and down by directly or indirectly applying a driving force to a portion of the support shaft that is disposed below the collection basket through the basket-side cylindrical portion. Equipped with a mechanism part on the lid side that can
The inlet forming surface, which is the surface forming the inlet space of the recess forming part, has a shape that gradually approaches the support shaft side toward the bottom,
As the faucet lid moves downward, the packing portion comes into contact with the inlet forming surface, thereby closing the drain port, while as the faucet lid moves upward, the inlet forming surface moves away from the inlet forming surface. A drain plug device for a kitchen configured such that the drain port is in an open state when the packing part is separated,
The faucet lid side mechanism is capable of maintaining the faucet lid in a stopped state at a predetermined basic open position when the drain port is in an open state;
A portion of the packing portion that is located vertically above the inlet forming surface and closest to the inlet forming surface in the vertical direction when the stopper lid is placed in the basic open position. A certain vertically closest portion is configured to be located above the center of the inlet forming surface along the vertical direction,
A portion of the inlet forming surface that is located at least at the same height as the packing portion and is closest to the packing portion in the horizontal direction when the stopper lid is placed in the basic open position. , the surface located vertically below the packing part and between the part closest to the packing part in the vertical direction has a tapered surface shape with a constant inclination angle or a downwardly concave curved surface shape. Ori,
When the stopper lid is placed in the basic open position, the top surface of the lid portion is flush with the top surface of the base portion of the sink that is continuous with the top of the recess forming portion, and the packing portion The distance from the inlet forming surface in the horizontal direction to the inlet forming surface is greater than or equal to the distance in the vertical direction from the closest point in the vertical direction to the inlet forming surface. Drain plug device for kitchen.

According to the above-mentioned means 1, by directly or indirectly applying a driving force to the support shaft inserted through the basket-side cylinder part by the stopper-side mechanism part, the stopper cover is moved up and down, and the drain opening is opened. You can switch between open and close states. Therefore, the work involved in switching the open/closed state of the drain port becomes extremely easy, and there is no need to manage the faucet lid, thereby making it possible to prevent the faucet lid from being lost. Further, when switching the open/closed state of the drain port, there is no need to touch the stopper lid or place the stopper lid outside the sink, improving convenience and hygiene.

Furthermore, according to the above means 1, when the drain port is in the open state, it is possible to maintain the stopper lid at a predetermined basic open position, and the stopper cover can be placed in the basic open position. In this state, the top surface of the lid portion is flush with the top surface of the base portion of the sink that is continuous with the top of the recess forming portion. That is, when the stopper lid is placed in the basic open position, the top surface of the lid portion and the top surface of the base portion are approximately at the same height (for example, the difference in height between both top surfaces is within several mm). Therefore, compared to the case where the top surface of the lid protrudes from the top surface of the base, the lid is less likely to get in the way when placing dishes, cooking utensils, etc. in the sink, making it more convenient. You can improve your sexuality. In addition, the stopper lid makes it more difficult to see the foreign matter in the collection basket, and the device has a cohesive appearance as a whole, so the appearance can be further improved.

In addition, according to the above-mentioned means 1, when the stopper lid of the packing part is arranged in the basic open position, the inflow port forming surface is located vertically above the inflow port forming surface and the inflow port forming surface is located vertically above the inflow port forming surface. The vertically closest portion, which is the portion closest to the inlet, is configured to be located above the center of the inlet forming surface in the vertical direction. Therefore, when the stopper lid is placed in the basic open position, it is possible to ensure a relatively large distance along the vertical direction from the inlet forming surface to the vertically closest position. As a result, when the stopper lid is placed in the basic open position, an opening (referred to as "lower opening") formed below the packing part between the vertically closest area and the inlet forming surface. A relatively large area can be secured. As a result, even when the stopper lid is placed in the basic open position, foreign matter such as food waste can easily pass through the lower opening smoothly.

In addition, when the stopper lid is placed in the basic open position, the horizontal distance (shortest distance) from the packing part to the inlet forming surface is kept relatively large as described above. The distance in the vertical direction from the closest point to the inlet forming surface is assumed to be greater than or equal to the distance along the vertical direction. Therefore, it is possible to ensure a large area of the opening (referred to as "lateral opening") formed between the inflow port forming surface and the packing part on the side of the packing part. As a result, even when the stopper lid is placed in the basic open position, foreign objects such as garbage can easily pass through the side openings smoothly.

Furthermore, of the inlet forming surface, when the stopper lid is placed in the basic open position, at least the part located at the same height as the packing part and closest to the packing part in the horizontal direction, and the part of the packing part The surface located vertically below and between the portion closest to the packing portion in the vertical direction has a tapered surface shape with a constant inclination angle or a downwardly concave curved surface shape. In other words, among the inlet forming surfaces, at least the surface corresponding to the path from the side opening to the lower opening is not a curved surface convex upward, but a tapered surface with a constant inclination angle or a downward concave surface. It has a curved surface. Therefore, it is possible to secure a larger distance between the packing section and the surface corresponding to the path from the side opening to the lower opening on the inlet forming surface (the cross-sectional area of the space through which foreign matter passes), and Foreign matter can be made to flow down more smoothly from the side opening to the lower opening.

As described above, the areas of the side openings and the lower openings are each ensured to be large, and at least the surface corresponding to the path from the side openings to the lower openings is tapered. By having a planar shape or a downwardly concave curved surface, foreign matter such as garbage that has flowed into the inlet space can smoothly pass through the side opening and smoothly flow from the side opening to the lower opening. It flows down, passes smoothly through the lower opening, and easily reaches the collection basket. Thereby, it is possible to smoothly flow foreign matter into the collection basket while providing a stopper lid for opening and closing the drain port.

In order to further improve the appearance, when the stopper lid is placed in the basic open position, the horizontal distance from the packing part to the inlet forming surface should be It is preferable that the distance be twice or less the distance along the vertical direction to the inlet forming surface, so that the area of the side opening when viewed from above does not become excessively large.

Means 2. A cylindrical hanging tube portion extending downward is provided in the center of the lid portion,
The hanging cylinder part is arranged on the outer periphery of the car side cylinder part, and is configured to move along the outer peripheral surface of the car side cylinder part when the stopper lid moves up and down,
The stopper lid is installed with the lid part placed on the upper part of the support shaft,
By pulling up the stopper cover, the stopper cover can be removed from the support shaft while removing the hanging cylinder part from the outer periphery of the basket side cylinder part,
When the stopper lid is removed from the support shaft, by pulling up the collection basket, the basket side cylinder portion is removed from the outer periphery of the support shaft, and the collection basket is removed from the basket arrangement space. The kitchen drain plug device according to means 1, characterized in that:

According to the above-mentioned means 2, the stopper lid and collection basket can be removed extremely easily. Therefore, the foreign matter collected in the collecting basket can be easily disposed of (throwing away, etc.). Furthermore, since it becomes possible to clean the stopper lid and collection basket independently, convenience and hygiene can be further improved.

Furthermore, when removing the collection basket, the basket-side tube can be used as a "handle," but the hanging tube is placed on the outer periphery of the basket-side tube. Since the outer periphery of the side cylinder part is covered, it is possible to effectively prevent foreign matter and dirt from adhering to the basket side cylinder part. Therefore, by using the basket side cylinder part as a "handle", it is possible to more reliably prevent foreign objects and dirt from adhering to the hands when removing the collection basket, further increasing convenience and hygiene. can.

In addition, when the lid moves up and down, the hanging cylinder moves along the outer circumferential surface of the basket-side cylinder, which has a larger diameter than the support shaft. ) can be effectively suppressed.

Means 3. The collection basket is installed in a state where rotation along the circumferential direction of the support shaft is restricted,
The drain plug device for a kitchen according to means 2, further comprising a stopper lid rotation regulating means for regulating rotation of the hanging tube portion with respect to the basket side tube portion.

According to the above means 3, the rotation of the stopper lid can be restricted by the stopper lid rotation regulating means. Therefore, when the drain port is in an open state, it is possible to more reliably prevent the stopper lid from turning unintentionally due to the influence of drainage. Thereby, the appearance can be further improved.

In addition, if the faucet lid, etc. has a non-circular shape in plan view (for example, a rectangular shape in plan view), the user does not need to adjust the position of the faucet lid when closing the drain port. , the packing portion can be brought into contact with the inlet forming surface in an appropriate state. Thereby, good water-stopping properties can be more reliably obtained without causing a decrease in convenience. In addition, since the orientation of the lid is kept constant when the drain is open, the orientation of the lid and recess can be maintained in the same direction, resulting in better aesthetics and the passage of foreign objects. performance (collection performance) can be obtained.

Means 4. A flange-shaped portion that protrudes outward is formed on the upper part of the basket main body,
The recess forming portion is
a mounting surface on which the brim-shaped part is mounted;
a rising surface that rises upward from the outer edge of the mounting surface and is continuous with the inlet forming surface;
In a state where the flanged portion is placed on the mounting surface, the upper surface of the flanged portion is located at the same height as the top of the rising surface or below the top, The outer circumferential surface of the brim-shaped portion is configured to be in contact with or close to the rising surface,
2. A drain plug device for a kitchen according to means 2, wherein the upper end of the basket-side cylindrical portion is located at the same height as or above the upper portion of the basket main body.

According to the above means 4, when the flanged part is placed on the mounting surface, the upper surface of the flanged part is located at the same height as the top of the rising surface or below the top. At the same time, the outer circumferential surface of the brim portion comes into contact with or comes close to the rising surface. Therefore, it is possible to more reliably prevent foreign matter flowing along the inlet forming surface from getting caught in the brim portion. As a result, smoother flow of foreign matter into the collection basket can be achieved.

Further, according to the above-mentioned means 4, since the flanged portion is in the above state, it becomes difficult to use the flanged portion as a “handle” when removing the collection basket from the basket arrangement space. Since the upper end of the basket-side cylindrical portion is located at the same height as or above the upper portion of the basket main body, the basket-side cylindrical portion can be more easily used as a “handle”. Therefore, when removing the collection basket from the basket arrangement space, the "handle" is not the flange-like part that is relatively easy to get dirt, etc., but the basket that is covered by the hanging tube part and is relatively hard to get dirt, etc. The user can naturally use the side tube part. As a result, convenience and hygiene can be further improved.

Means 5. The lid portion is
a lid base portion placed on the support shaft;
The hanging cylinder part, and a removable part that has a plate-shaped projecting part projecting outward from the upper part of the hanging cylinder part and is configured to be detachable from the lid base part,
When the removable part is removed from the lid base part and the hanging cylinder part of the removable part is arranged on the outer periphery of the car side cylinder part, along the outer peripheral surface of the car side cylinder part. The kitchen according to means 2, characterized in that the projecting part is configured to be able to enter the collection space by moving the removable part so that the hanging cylinder part moves. Drain plug device for use.

According to the above means 5, the lid base part and the removable part can be separated, and both can be cleaned independently. Therefore, convenience and hygiene can be further improved.

Further, according to the above means 5, in a state where the hanging cylinder part of the removable part removed from the lid base part is arranged on the outer periphery of the basket side cylinder part, the hanging cylinder part is extended along the outer peripheral surface of the basket side cylinder part. By moving the removable part so as to move, the projecting part can be made to enter the collection space (that is, the space in which foreign matter is accommodated). As a result, when disposing of foreign matter collected in the collection basket (throwing away garbage, etc.), the foreign matter can be compressed by the overhang and the moisture contained in the foreign matter can be removed without touching the foreign matter directly. Can be done. Therefore, convenience and hygiene can be further improved.

In addition, after flipping the removable part removed from the lid base part upside down, the hanging cylinder part of the removable part is placed on the outer periphery of the basket side cylinder part, and then By moving the removable part so that the hanging cylinder part moves, the projecting part may enter the collection space (that is, the space in which foreign matter is accommodated). In this case, since the hanging cylinder part is arranged on the opposite side of the collection basket, the projecting part can be made to penetrate more into the collection space without the hanging cylinder part getting in the way. Therefore, the foreign matter can be more strongly compressed by the projecting portion, and the moisture contained in the foreign matter can be removed more efficiently. Moreover, since it becomes possible to use the hanging cylinder part as a handle when compressing foreign matter, it is more convenient in terms of convenience and hygiene.

Means 6. The kitchen appliance according to means 1, wherein the faucet lid side mechanism section is configured to be able to move the faucet lid upward to an enlarged open position that is a position above the basic open position. Drain plug device.

According to the above-mentioned means 6, the cap lid can be moved upward to the enlarged opening position, which is a position above the basic opening position, by the cap lid side mechanism section. Therefore, the lid can be placed above the basic open position without touching the lid. Thereby, it is possible to further improve convenience and hygiene while allowing foreign objects larger than those normally expected to flow smoothly into the collection basket.

FIG. 3 is a sectional view of the drain plug device when the drain port is in a closed state. FIG. 3 is a cross-sectional view of the drain plug device when the drain port is in an open state and the plug lid is placed in a basic open position. FIG. 6 is a partially enlarged cross-sectional view of the packing portion and the like when the stopper lid is placed in the basic open position. FIG. 3 is a perspective view of the drain plug device when the drain port is in an open state. FIG. 3 is a perspective view of the collection basket and the like with the stopper lid removed. FIG. 3 is a perspective view of the concave portion forming portion, etc., with the stopper lid and collection basket removed. It is a perspective view which shows the removable part etc. when a projecting part is made to enter into a collection basket. It is a sectional view showing a removable part etc. when a projecting part is inserted into a collecting basket. FIG. 3 is a cross-sectional view showing the inflow of foreign matter into the collection basket. It is a top view which shows the stopper lid etc. in another embodiment. FIG. 14 is a sectional view taken along the line KK in FIG. 13 to show an inlet forming surface, a collection basket, and the like in another embodiment. FIG. 7 is a partially enlarged cross-sectional view showing a protrusion and a recess that constitute a stopper rotation regulating means in another embodiment. 11 is a sectional view taken along line JJ in FIG. 10 to show the structure of a drain plug device in another embodiment. FIG. In another embodiment, it is a sectional view for showing a stopper lid etc. which are arranged in an enlarged opening position. FIG. 7 is a cross-sectional view of a drain plug device for showing an inlet forming surface in another embodiment.

An embodiment will be described below with reference to the drawings. As shown in FIG. 1, a kitchen drain plug device 1 (hereinafter simply referred to as "drain plug device 1") is provided in a kitchen sink 100. The drain plug device 1 includes a recess forming portion 102 formed in the sink 100 in addition to a plug lid 7 and the like which will be described later. Here, first, the configuration of the sink 100 will be described. Note that the sink 100 does not necessarily need to be constructed from one piece, and may be constructed by assembling a plurality of parts. Therefore, for example, the sink 100 may be configured by assembling a portion of the sink 100 other than the recess forming portion 102 and a portion forming the recess forming portion 102 that is formed separately from the portion.

The sink 100 includes a base portion 101 and a recess forming portion 102 . The base portion 101 is a portion that constitutes most of the bottom of the sink 100. The upper surface of the base portion 101 has a substantially horizontal surface shape (not shown, but more precisely, a very gently sloped surface shape that gradually descends toward the recess forming portion 102).

The recessed portion forming portion 102 is recessed at a position adjacent to a side wall portion (not shown) provided upright on the outer edge of the base portion 101 on the back side or side side of the sink 100 when viewed from the user. . The recess forming portion 102 is provided with an inlet forming surface 103, a mounting surface 104, a rising surface 105, a hanging surface 106, and a bottom surface 107.

The inlet forming surface 103 is an inclined surface that is connected to the upper surface of the base portion 101 and gradually approaches the support shaft 52 side, which will be described later, in a downward direction. In this embodiment, the inlet forming surface 103 has a circular shape (annular shape) in plan view (see FIG. 4).

Furthermore, at least a predetermined target surface 103a of the inflow port forming surface 103 (in FIG. 3, the surface of the inflow port forming surface 103 indicated by a thick line) has a tapered surface shape with a constant inclination angle. Note that the target surface 103a is a portion of the inlet forming surface 103 that is located at least at the same height as a packing portion 72, which will be described later, and which is located horizontally when the stopper lid 7 is placed in the basic open position, which will be described later. This refers to the surface between a portion X that is closest to the packing portion 72 along the vertical direction and a portion Y that is located vertically below the packing portion 72 and closest to the packing portion 72 along the vertical direction (see FIG. 3).

The mounting surface 104 is an annular plane extending in a substantially horizontal direction, and is a surface on which a flange-shaped portion 62b, which will be described later, is mounted.

The rising surface 105 is a surface that rises upward from the outer edge of the mounting surface 104 and is continuous with the inlet forming surface 103. The height of the rising surface 105 with respect to the mounting surface 104 is set to be slightly larger (for example, within several mm) than the thickness of the brim portion 62b, which will be described later. In this embodiment, the portion from the inlet forming surface 103 to the rising surface 105 is a curved surface, and the boundary portion between the inlet forming surface 103 and the rising surface 105 is the curved surface along the vertical direction. The center of This boundary portion coincides with the top of the rising surface 105. Note that if the area from the inlet forming surface 103 to the rising surface 105 has an angular shape, the apex of the corner is the boundary between the inlet forming surface 103 and the rising surface 105 (that is, the top of the rising surface 105). ).

The hanging surface 106 is a cylindrical surface that extends downward from the inner edge of the placement surface 104, and the height of the hanging surface 106 is set to accommodate a basket main body 62, which will be described later. The upper and lower parts of the hanging surface 106 each have a curved surface shape, and the upper part is connected to the mounting surface 104 and the lower part is connected to the bottom surface 107.

The bottom surface 107 is an inclined surface having a circular shape (an annular shape) in a plan view and gradually descending from the lower end of the hanging surface 106 toward the inside (towards the drain port 109 described below). Further, a drain port 109 is formed through the bottom portion 108 of the recess forming portion 102 that constitutes the bottom surface 107 .

In addition, a recess 110 that opens upward is formed by the internal space of the recess forming portion 102 surrounded by the inlet forming surface 103, the mounting surface 104, the rising surface 105, the hanging surface 106, and the bottom surface 107. There is. The recess 110 includes an inlet space 111 which is an inverted truncated conical space surrounded by an inlet forming surface 103, and a cage which is a space surrounded by a mounting surface 104, a rising surface 105, a hanging surface 106, and a bottom surface 107. A placement space 112 is provided.

The inlet space 111 is a space located at the uppermost part of the recess 110 and opened upward. Foreign matter such as garbage entering the recess 110 first enters the inlet space 111.

The cage arrangement space 112 is a space that is continuous with the inlet space 111 and located below the inlet space 111, and functions as a storage space for the collecting cage 6, which will be described later.

Next, a portion of the drain plug device 1 other than the recess forming portion 102 will be explained. The drain plug device 1 includes a drain port member 2, piping 3, a plug lid side mechanism part 4, a support shaft unit 5, a collection basket 6, and a plug lid 7.

The drain port member 2 is formed in a cylindrical shape and is inserted into the drain port 109 with its central axis substantially aligned with the center axis of the drain port 109. The drain port member 2 includes a flange 21 that projects radially outward at its upper end, and a male threaded portion 22 that is formed on the outer periphery below the flange 21 .

The piping 3 includes a cylindrical main body pipe 31 extending in the vertical direction, and a cylindrical attachment tube portion 32 extending in a branched state from the main body pipe 31.

The main body pipe 31 is a part that constitutes a drainage flow path together with the drain port member 2. The main body tube 31 is provided with a female threaded portion 31a (simplified in the drawing) into which the male threaded portion 22 can be screwed, on the inner periphery of one end (upper end) thereof. Then, after arranging the pipe 3 below the bottom part 108 so as to be substantially coaxial with the drain port 109, the drain port member 2 is inserted into the drain port 109 and the pipe 3 from above the bottom part 108, and the male threaded part 22 By screwing into the female threaded portion 31a and sandwiching the bottom portion 108 between the collar portion 21 and the upper end surface of the pipe 3, the drain port member 2 and the pipe 3 are connected, and both are attached to the sink 100. ing.

In this embodiment, an annular sealing member 8 made of an elastically deformable material (for example, resin, rubber, etc.) is disposed between the upper end surface of the pipe 3 and the back surface (lower surface) of the bottom portion 108. has been done. This sealing member 8 prevents water from leaking between the piping 3 and the sink 100.

The mounting tube portion 32 is a portion having a cylindrical shape as a whole, and functions as an object to which the stopper lid side mechanism portion 4 is attached. A flange-shaped portion protruding outward is provided at the end of the mounting cylinder 32 located on the opposite side from the main body tube 31, and a flange-shaped portion for attaching the stopper lid-side mechanism portion 4 is provided on the flange-shaped portion. A hole (not shown) is formed therethrough. The holes have a curved shape extending along the circumferential direction of the mounting tube portion 32, and a plurality of holes (for example, three holes) are provided at intervals along the circumferential direction.

The stopper lid side mechanism section 4 is a mechanism that moves the stopper lid 7 up and down by moving the support shaft unit 5 up and down. The lid-side mechanism part 4 includes a rotatable rotating part 41 and a support protrusion 42 that can move up and down as the rotating part 41 rotates. In this embodiment, the rotating part 41 is operated by operating an operating part (for example, an operating button that can be moved up and down) provided near the sink 100, such as a kitchen counter. It is configured to rotate using force. The operating force can be transmitted from the operating section to the rotating section 41 by, for example, a release wire that includes an inner wire and an outer tube through which the inner wire is inserted in a reciprocating manner.

Moreover, the stopper lid side mechanism part 4 can maintain the rotating part 41 in a stopped state at a predetermined angle. In this state, the support protrusion 42 can be stopped while being moved upward to the maximum extent, and the stopper lid 7 can be maintained in the stopped state at the predetermined basic opening position (the position shown in FIG. 2). It is now possible to do so. In this embodiment, even if the support protrusion 42 is moved upward to the maximum extent, the support protrusion 42 is not located vertically above the rotation axis of the rotation part 41.

Furthermore, the stopper lid side mechanism part 4 includes a claw part (not shown) that can be inserted into the hole provided in the mounting cylinder part 32. The stopper lid side mechanism part 4 is attached to the mounting cylinder part 32 by inserting the claw part into the hole part and locking it to the brim-like part of the mounting cylinder part 32. When the stopper lid side mechanism section 4 is attached to the mounting cylinder section 32, the support protrusion 42 is placed inside the main tube 31. However, the support protrusion 42 is relatively short, and its tip does not reach the central axis of the main body tube 31. Note that the method of attaching the stopper lid side mechanism section 4 to the attachment tube section 32 may be changed as appropriate.

The support shaft unit 5 supports the stopper lid 7 and transmits the driving force generated by the vertical movement of the support protrusion 42 to the stopper lid 7. The support shaft unit 5 includes a supported cylinder portion 51 and a support shaft 52.

The supported cylindrical portion 51 is a cylindrical portion supported by the support protrusion 42 . The supported cylindrical portion 51 is inserted through the drain port member 2 and the inner periphery of the pipe 3 with its outer circumferential surface being close to the inner circumferential surface of the pipe 3 . In this embodiment, the supported cylinder part 51 is relatively thin, and the inner peripheral surface of the supported cylinder part 51 is closer to the inner peripheral surface of the pipe 3 than the tip of the support protrusion 42 when viewed from above. It is now located in As a result, the water passage area in the internal space of the supported cylindrical portion 51 becomes sufficiently large, and drainage water flows smoothly inside the supported cylindrical portion 51. Furthermore, the supported cylindrical portion 51 allows the support shaft unit 5 to stand almost upright by itself in the drainage flow path (inside the pipe 3, etc.).

The support shaft 52 is a rod-shaped portion that supports the stopper lid 7 with its upper surface. The lower part of the support shaft 52 is connected to the supported cylindrical part 51 via a plurality of connecting parts 53 (see FIGS. 1 and 6), and the supported cylindrical part 51 moves up and down as the support projection 42 moves up and down. It moves up and down accordingly. In this embodiment, the support shaft 52 is configured by connecting in series a base portion 52a formed integrally with the supported cylinder portion 51 and the connecting portion 53, and a rod-shaped column portion 52b.

The collection basket 6 is arranged in the basket arrangement space 112 and is used to collect foreign matter such as garbage that has flowed into the inlet space 111. The collection cage 6 includes a cage side cylinder section 61 and a cage main body section 62.

The cage side cylinder part 61 has a cylindrical shape and is provided at the center of the collection cage 6. A support shaft 52 is inserted through the inner periphery of the car-side cylindrical portion 61, and the support shaft 52 moves up and down along the inner periphery of the car-side cylindrical portion 61. The cage side cylinder part 61 has the role of guiding the vertical movement of the support shaft 52 and preventing the support shaft 52 from tilting. Moreover, the car side cylinder part 61 has a shape in which its upper end is located above the upper part (upper end) of the car main body part 62. It should be noted that the upper end of the car side cylinder part 61 may be located at the same height as the upper part (upper end) of the car main body part 62.

Further, on the lower end side of the car side cylinder part 61, a car lower cylinder part 61a is provided which projects downward from the car main body part 62 and whose diameter gradually increases downward. This basket lower cylinder portion 61a can be used as a "handle" when holding the collection basket 6 upside down, for example, when discarding foreign matter collected in the collection basket 6. Moreover, the cage lower cylinder part 61a can also be used as a guide part to make it easier to insert the support shaft 52 into the cage side cylinder part 61, that is, as an "invitation" when attaching the collection cage 6. Function.

The basket main body part 62 is located below a lid part 71, which will be described later, and is a part mainly responsible for collecting foreign matter. The car main body part 62 has a bowl shape that expands outward from the outer peripheral surface of the car side cylinder part 61, and has a collection space 62a that is recessed downward. Foreign matter that has flowed into the inlet space 111 is accommodated and collected in the collection space 62a. Note that a large number of water holes (not shown) are formed through the basket main body 62, and the waste water flows down to the piping 3 side through the water holes.

In addition, a flange-shaped portion 62b that protrudes outward is formed at the upper portion of the basket main body portion 62. By placing the brim portion 62b on the placement surface 104, the collection basket 6 is placed in the cage placement space 112 in a state floating above the bottom surface 107 (bottom portion 108).

Further, in a state where the flanged portion 62b is placed on the mounting surface 104, the upper surface of the flanged portion 62b is located below the top of the rising surface 105, and the outer periphery of the flanged portion 62b is The surface is configured to be in contact with or close to the rising surface 105 (eg, located within several mm from the rising surface 105).

The stopper lid 7 is a stopper for opening and closing the drain port 109. The stopper lid 7 includes a lid portion 71 and a packing portion 72.

The lid portion 71 is a disk-shaped portion with an upper surface facing toward the water storage space (above) of the sink 100 . In this embodiment, the outer diameter of the lid part 71 is approximately the same as the outer diameter of the packing part 72 (for example, the difference between the outer diameter of the lid part 71 and the outer diameter of the packing part 72 is within several mm). It is composed of In other words, when viewed from above, the outer edge of the lid part 71 and the outer edge of the packing part 72 are configured to substantially overlap (for example, the shortest distance between these outer edges is within several mm).

Further, the lid portion 71 includes a disc-shaped lid base portion 711 and a removable portion 712 that can be attached to and detached from the lid base portion 711 (attachment/removal).

The lid base portion 711 includes an installed portion 711a provided at the center of the back surface, and a plurality of attachment/detachment claw portions 711b arranged in an annular shape around the installed portion 711a. The installed portion 711a has a recess in the center thereof, in which the distal end surface (upper portion) of the support shaft 52 can be placed. By arranging the distal end surface (upper part) of the support shaft 52 in the depression, the lid part 71 is placed on the distal end surface (upper part) of the support shaft 52, and as a result, the stopper lid 7 is supported by the support shaft 52. The situation is as follows.

The attachment/detachment claw portion 711b is configured to be somewhat elastically deformable along the inner and outer directions by utilizing the elasticity of the material. In this embodiment, a projecting portion 712b of the removable portion 712, which will be described later, comes into surface contact with the back surface of the lid base portion 711 and is locked to the removable claw portion 711b, so that the lid base portion 711 The removable portion 712 is configured to be attached to the removable portion 712. On the other hand, by applying force to the lid base part 711 and the removable part 712 along the direction in which the removable part 712 is separated from the lid base part 711, the lid base part It is possible to remove the detachable part 712 from 711.

The removable part 712 includes a cylindrical hanging tube part 712a and a plate-shaped projecting part 712b projecting outward from the upper part of the hanging tube part 712a. The hanging cylinder part 712a is a cylindrical part that is located at the center of the lid part 71 and extends downward when the removable part 712 is attached to the lid base part 711. In a state in which the lid portion 71 is placed on the distal end surface of the support shaft 52 (a state in which the stopper lid 7 is supported by the support shaft 52), the hanging cylinder portion 712a is disposed on the outer periphery of the basket side cylinder portion 61. It has become so. The hanging cylindrical portion 712a moves along the outer peripheral surface of the basket side cylindrical portion 61 when the stopper lid 7 moves up and down. Therefore, the hanging cylinder portion 712a has a function of guiding the movement of the stopper cover 7 and suppressing the inclination of the stopper cover 7 when the stopper cover 7 moves up and down.

In this embodiment, when the stopper lid 7 is placed on the tip end surface (upper part) of the support shaft 52, by pulling up the stopper lid 7, the hanging cylinder part 712a is moved around the outer periphery of the basket side cylinder part 61. It is possible to remove the stopper lid 7 from the support shaft 52 while removing it from the support shaft 52. Note that when the stopper lid 7 is removed from the support shaft 52, the collection basket 6 remains and the collection space 62a of the collection basket 6 is exposed to the water storage space side of the sink 100 (Fig. 5 reference). Therefore, it is possible to easily remove the foreign matter contained in the collection space 62a.

Furthermore, when the stopper lid 7 is removed from the support shaft 52, the removable portion 712 is removed from the lid base portion 711 of the removed stopper lid 7, and the hanging cylinder portion 712a of the removable portion 712 is moved toward the basket side. It can be arranged on the outer periphery of the cylindrical portion 61. Then, with the hanging cylinder part 712a disposed on the outer circumference of the car side cylinder part 61, by moving the removable part 712 so that the hanging cylinder part 712a moves along the outer peripheral surface of the car side cylinder part 61, It is possible to make the overhang part 712b enter the collection space 62a.

In this embodiment, even when the removable part 712 is in the normal state (the same state as when the stopper lid 7 is placed on the support shaft 52), it is in the vertically inverted state (inverted from the normal state). Even in the inverted state), the overhanging portion 712b can be collected by moving the removable portion 712 so that the hanging tube portion 712a moves along the outer peripheral surface of the basket side tube portion 61. It is possible to enter the space 62a (see FIGS. 7 and 8). After the removable part 712 is turned upside down, the removable part 712 is moved so that the hanging cylinder part 712a moves along the outer circumferential surface of the basket side cylinder part 61, thereby putting the removable part 712 in the normal state. Compared to the case where the protruding portion 712b is inserted deeper into the collection space 62a.

In addition, when the stopper lid 7 is removed from the support shaft 52 , by pulling up the collection basket 6 , the basket side cylindrical portion 61 is removed from the outer periphery of the support shaft 52 , and the collection basket 6 is removed from the basket arrangement space 112 . It is possible to leave it in a detached state. When the collecting basket 6 is removed from the basket arrangement space 112, the support shaft unit 5 remains and the cage arrangement space 112 is exposed to the water storage space side of the sink 100 (see FIG. 6). Therefore, it is possible to easily remove foreign matter remaining in the basket arrangement space 112 and clean the recess forming portion 102. Note that it is possible to use the removable portion 712 to move the projecting portion 712b deep into the collection space 62a even when the collection basket 6 is removed from the basket placement space 112.

Further, in a state where the collection cage 6 is removed from the cage arrangement space 112, the support shaft unit 5 can also be removed by pulling up the support shaft unit 5. By removing the support shaft unit 5, it becomes possible to clean the support shaft unit 5 by itself, and it also becomes possible to clean the recess forming portion 102 more easily.

The packing portion 72 is installed such that its outer edge is located below the outer edge (outermost circumference) of the lid 71 and close to the outer edge of the lid 71 . The packing portion 72 is a portion of the stopper lid 7 located closest to the inlet forming surface 103, and comes into contact with the inlet forming surface 103 when the drain port 109 is closed, as will be described later.

In this embodiment, as shown in FIG. 3, when the stopper lid 7 of the packing part 72 is placed in the basic open position (the position shown in FIG. 2), the part vertically above the inlet forming surface 103 The vertically closest portion 72a, which is located at the inlet forming surface 103 and closest to the inlet forming surface 103 along the vertical direction, is located above the center CS of the inlet forming surface 103 along the vertical direction. It is configured.

In the drain plug device 1 described above, the open/closed state of the drain port 109 can be switched as follows. That is, by operating the operation part and rotating the rotating part 41 so that the support protrusion 42 moves upward, the support protrusion 42 (bottom lid side mechanism part 4) moves the support shaft 52 toward the basket side. A driving force is applied indirectly through the cylindrical portion 61 to a portion located below the collection basket 6 via the supported cylindrical portion 51 and the like. As a result, the support shaft 52 and the stopper lid 7 placed on the support shaft 52 move upward. Then, as the stopper lid 7 moves upward, the packing portion 72 separates from the inflow port forming surface 103, thereby opening the drain port 109. Incidentally, the support protrusion 42 will eventually stop at the maximum upward movement, and the stopper lid 7 will be maintained at the basic open position (the position shown in FIG. 2). Become.

Here, when the stopper lid 7 is placed in the basic open position, the top surface of the lid portion 71 (bottom lid 7) is flush with the top surface of the base portion 101 (see FIG. 2). Note that "flush" means that the top surface of the lid part 71 and the top surface of the base part 101 are approximately the same height (for example, the height difference between the top surface of the base part 101 and the top surface of the lid part 71). (within a few mm).

In addition, when the stopper lid 7 is placed in the basic open position, the distance A along the horizontal direction from the packing portion 72 to the inlet forming surface 103 is equal to the distance A from the vertically closest portion 72a to the inlet forming surface. 103 along the vertical direction (see FIG. 3). Note that in this embodiment, the distance B is set to a predetermined value (for example, 10 mm, more preferably 15 mm) or more. Further, in terms of improving the appearance, it is preferable that the distance A is twice the distance B or less when the stopper lid 7 is placed in the basic open position.

On the other hand, when the drain port 109 is in the open state, by operating the operation part and rotating the rotating part 41 so that the support protrusion 42 moves downward, the support protrusion 42 moves downward, and thus The support shaft 52 and the stopper lid 7 placed thereon move downward. Then, the entire outer periphery of the packing portion 72 comes into contact with the inflow port forming surface 103, thereby closing the drain port 109.

As described in detail above, according to the present embodiment, by applying a driving force to the support shaft 52 by the faucet lid side mechanism part 4, the faucet lid 7 is moved up and down, and the open/closed state of the drain port 109 is controlled. Can be switched. Therefore, the work involved in switching the open/closed state of the drain port 109 becomes extremely easy, and the need to manage the stopper lid 7 is eliminated, making it possible to prevent the stopper lid 7 from being lost. Further, when switching the open/closed state of the drain port 109, there is no need to touch the stopper lid 7 or place the stopper lid 7 outside the sink 100, and convenience and hygiene can be improved.

Further, when the lid 7 is placed in the basic open position, the top surface of the lid portion 71 is flush with the top surface of the base portion 101. Therefore, compared to the case where the top surface of the lid part 71 protrudes from the top surface of the base part 101, effects such as the stopper lid 7 being less likely to get in the way when placing dishes, cooking utensils, etc. in the sink 100 are achieved. Therefore, convenience can be further improved. In addition, the stopper cover 7 makes it more difficult to see the foreign matter in the collecting basket 6, and the drain stopper device 1 has a unified appearance as a whole, so that the appearance can be further improved.

In addition, the vertically closest portion 72a is configured to be located above the center CS of the inlet forming surface 103 in the vertical direction. Therefore, when the stopper lid 7 is placed in the basic open position, it is possible to ensure a relatively large distance B along the vertical direction from the inlet forming surface 103 to the vertically closest portion 72a. As a result, when the stopper lid 7 is placed in the basic open position, an opening (a "lower opening" A relatively large area can be secured for the BO (see FIG. 3, etc.). As a result, even when the stopper lid 7 is placed in the basic open position, foreign objects such as garbage can easily pass through the lower opening BO smoothly.

Furthermore, when the stopper lid 7 is placed in the basic open position, the distance A is equal to or greater than the distance B, which is kept relatively large as described above. Therefore, a large area of the opening formed between the inlet forming surface 103 and the packing part 72 on the side of the packing part 72 (referred to as "lateral opening SO", see FIG. 3, etc.) can be secured. . As a result, even when the stopper lid 7 is placed in the basic open position, foreign objects such as garbage can easily pass through the side opening SO smoothly.

Further, at least the target surface 103a of the inlet forming surface 103 has a tapered surface shape with a constant inclination angle. In other words, at least the surface of the inlet forming surface 103 corresponding to the path from the side opening SO to the lower opening BO is not an upwardly convex curved surface, but a tapered surface with a constant inclination angle. It has become. Therefore, the distance between the packing part 72 and the surface (object surface 103a) corresponding to the path from the side opening SO to the lower opening BO on the inlet forming surface 103 (the cross-sectional area of the space through which foreign matter passes) is It is possible to secure a larger size, and it is possible to make it easier for foreign matter to flow down from the side opening SO to the lower opening BO more smoothly.

As described above, each area of the side opening SO and the lower opening BO is ensured to be large, and at least the path from the side opening SO to the lower opening BO of the inlet forming surface 103 is secured. Since the corresponding surface (object surface 103a) is tapered, even if the foreign object K is relatively large, the foreign object K can smoothly pass through the side opening SO, as shown in FIG. As it passes, it smoothly flows down from the side opening SO to the lower opening BO, and furthermore, it smoothly passes through the lower opening BO and easily reaches the collection basket 6. Thereby, while providing the stopper lid 7 for opening and closing the drain port 109, it is possible to ensure that foreign substances smoothly flow into the collection basket 6. In particular, in this embodiment, it is possible to smoothly inflow (pass) foreign matter around the entire circumference of the stopper lid 7.

Furthermore, according to this embodiment, the stopper lid 7 and the collection basket 6 can be removed extremely easily. Therefore, the foreign matter collected in the collection basket 6 can be easily disposed of (disposed of, etc.). Moreover, since it becomes possible to clean the stopper lid 7 and the collecting basket 6 independently, convenience and hygiene can be further improved.

Furthermore, when removing the collection basket 6, the basket side cylinder part 61 can be used as a "handle", and the hanging cylinder part 712a is arranged on the outer periphery of the basket side cylinder part 61 (that is, the hanging cylinder part 712a is Since the outer periphery of the car-side cylinder part 61 is covered by the cylinder part 712a, it is possible to effectively prevent foreign matter and dirt from adhering to the car-side cylinder part 61. Therefore, by using the basket side cylinder part 61 as a "handle", it is possible to more reliably prevent foreign matter and dirt from adhering to the hands when removing the collection basket 6, further improving convenience and hygiene. be able to.

In addition, when the stopper lid 7 moves up and down, the hanging cylinder part 712a moves along the outer circumferential surface of the basket-side cylinder part 61, which has a larger diameter than the support shaft 52. The inclination of the central axis of the stopper lid 7 can be effectively suppressed.

In addition, in a state where the flanged portion 62b is placed on the mounting surface 104, the upper surface of the flanged portion 62b is located below the top of the rising surface 105, and the outer circumference of the flanged portion 62b is lower than the top of the rising surface 105. The surface comes into contact with or close to the rising surface 105. Therefore, it is possible to more reliably prevent foreign matter flowing along the inlet forming surface 103 from getting caught in the brim portion 62b. As a result, the foreign matter can flow more smoothly into the collection basket 6.

Furthermore, since the flanged portion 62b is in the above-described state, it becomes difficult to use the flanged portion 62b as a "handle" when removing the collection basket 6 from the basket arrangement space 112; Since the cylindrical portion 61 protrudes upward from the upper part of the basket main body portion 62, the basket side cylindrical portion 61 can be more easily used as a “handle”. Therefore, when removing the collection basket 6 from the basket arrangement space 112, the "handle" is covered by the hanging cylinder part 712a rather than the brim part 62b, which is relatively prone to dirt, etc. The user can naturally use the car side cylinder part 61, which is difficult to adhere to. As a result, convenience and hygiene can be further improved.

In addition, in this embodiment, the lid base part 711 and the removable part 712 can be separated, and both can be cleaned independently. Therefore, convenience and hygiene can be further improved.

Further, with the hanging cylinder part 712a of the removable part 712 removed from the lid base part 711 disposed on the outer periphery of the basket side cylinder part 61, the hanging cylinder part 712a moves along the outer circumferential surface of the basket side cylinder part 61. By moving the removable part 712 in such a manner, the protruding part 712b can enter the collection space 62a (that is, the space in which foreign matter is accommodated). As a result, when disposing of foreign matter collected in the collection basket 6 (throwing out garbage, etc.), the foreign matter is compressed by the overhanging portion 712b and the moisture contained in the foreign matter is removed without touching the foreign matter directly. can do. Therefore, convenience and hygiene can be further improved.

In particular, in this embodiment, the removable part 712 is moved so that the hanging cylinder part 712a moves along the outer peripheral surface of the car side cylinder part 61 while the removable part 712 is turned upside down. The exit portion 712b can be inserted into the collection space 62a. By turning the removable part 712 upside down, the hanging cylinder part 712a is placed on the opposite side of the collection basket 6, so the hanging cylinder part 712a does not get in the way, and the overhang part 712b can be moved into the collection space 62a. It can be made to penetrate more deeply. Therefore, the foreign matter can be more strongly compressed by the projecting portion 712b, and the moisture contained in the foreign matter can be removed more efficiently. Moreover, since it becomes possible to use the hanging cylinder part 712a as a handle when compressing foreign matter, better convenience and hygiene can be obtained.

Note that the present invention is not limited to the content described in the above embodiment, and may be implemented as follows, for example. Of course, other applications and modifications not exemplified below are also possible.

(a) In the above embodiment, the stopper lid 7, the inlet forming surface 103, etc. have a circular shape in plan view, but the shapes of the stopper lid, the inlet forming surface, etc. are not limited to this. Therefore, for example, as shown in FIG. 10, the stopper lid 7, the inlet forming surface 103, etc. may be configured to have a rectangular shape in plan view. Of course, when viewed in plan, the stopper lid or the recess forming portion may be configured to have an elliptical shape, an elliptical shape, a polygonal shape (for example, a hexagonal shape or an octagonal shape), or the like.

(b) In the above embodiment, the hanging cylinder part 712a is rotatable relative to the car side cylinder part 61. On the other hand, for example, as shown in FIGS. 11 to 13, by making the recess forming portion 102 (particularly the mounting surface and the rising surface) and the collection cage 6 (particularly the brim-shaped part) rectangular in plan view, etc. The collecting basket 6 is installed in a state where the rotation of the support shaft 52 along the circumferential direction is restricted, and a lid rotation regulating means 9 is provided for regulating the rotation of the hanging cylinder part 712a with respect to the basket side cylinder part 61. Good too. The stopper lid rotation regulating means 9 may be configured, for example, by a protrusion 91 protruding from the outer periphery of the basket side cylinder part 61 and a recess 92 provided in the hanging cylinder part 712a, in which the protrusion 91 is disposed. can. Of course, the outer circumferential surface of the car-side cylinder part 61 may have a polygonal cross-section (for example, a hexagonal shape, etc.), and the inner circumferential surface of the hanging cylinder part 712a may have a polygonal cross-section that matches the cross-sectional shape of the car-side cylinder part 61. The stopper lid rotation regulating means may be configured by the following.

By providing the stopper lid rotation regulating means 9, it is possible to more reliably prevent the stopper lid 7 from rotating unintentionally due to the influence of drainage when the drain port 109 is in an open state. Thereby, the appearance can be further improved.

In addition, if the stopper lid 7 or the like has a non-circular shape in plan view (for example, a rectangular shape in plan view), the user may have to adjust the position of the stopper cover 7 when closing the drain port 109. The packing portion 72 can be brought into contact with the inlet forming surface 103 in an appropriate state without doing so. Thereby, good water-stopping properties can be more reliably obtained without causing a decrease in convenience. Furthermore, since the orientation of the faucet lid 7 is kept constant when the drain port 109 is open, the orientation of the faucet lid 7 and the recess 110 can be maintained in the same direction, resulting in a better aesthetic appearance. and foreign matter passing performance (capturing performance).

(c) In the above embodiment, the stopper lid 7 is arranged in the basic open position when the support protrusion 42 is moved upward to the maximum extent. On the other hand, as shown in FIG. 14, when the support protrusion 42 is moved upward to the maximum extent, the stopper lid side mechanism You may constitute part 4. That is, the stopper lid side mechanism part 4 may be configured to be able to move the stopper lid 7 upward to the enlarged open position.

With this configuration, the stopper cover 7 can be placed above the basic open position without touching the stopper cover 7. Thereby, it is possible to smoothly flow foreign matter larger than normally expected foreign matter into the collecting basket 6 while further improving convenience and hygiene.

Note that even if the cap lid 7 is configured to be able to be moved upward to the enlarged open position as described above, the cap lid side mechanism section 4 does not stop the cap lid 7 at the basic open position. Constructed to be maintainable. On the other hand, the stopper lid side mechanism section 4 may or may not have a function of maintaining the stopper lid 7 in a stopped state at the enlarged open position. If the stopper lid side mechanism part 4 does not have the function of keeping the stopper lid 7 in a stopped state at the enlarged open position, for example, force is applied to the operation part (for example, if the operation button is pressed). The stopper lid 7 may be arranged in the enlarged open position only when the user is in the room.

(d) In the above embodiment, the rotating part 41 is configured to rotate using the operating force applied to the operating part, but a drive source such as a motor is provided, and the operation of the drive source is The rotating part 41 may be configured to rotate accordingly.

(e) In the above embodiment, the stopper lid side mechanism part 4 includes a rotating part 41 and a support protrusion 42, and as the support protrusion 42 moves up and down as the rotating part 41 rotates, the stopper lid 7 is moved. It is supposed to move up and down. On the other hand, the stopper lid-side mechanism part includes a cylindrical case and a rod-shaped part arranged to be movable back and forth with respect to the case, and is arranged in the internal space of the pipe 3 (main pipe 31). It may also be used as a In this case, as the rod-shaped portion moves up and down, the support shaft 52 moves up and down, and as a result, the stopper lid 7 moves up and down. Note that the rod-shaped portion and the support shaft 52 may be integrated or connected. Further, the rod-shaped portion may be moved using an operating force applied to the operation portion (for example, an operation button), or may be moved in accordance with the operation of a drive source such as a motor. .

(f) In the above embodiment, the driving force is indirectly transmitted from the mechanism part 4 on the lid side to the support shaft 52 via the supported cylinder part 51, etc., but on the lid side It may be configured such that the driving force is directly transmitted from the mechanism section 4 to the support shaft 52.

(g) In the above embodiment, the upper surface of the flanged portion 62b is located below the top of the rising surface 105 when the flanged portion 62b is placed on the mounting surface 104. has been done. On the other hand, in a state where the brim-like part 62b is placed on the mounting surface 104, the upper surface of the brim-like part 62b is arranged at the same height as the top of the rising surface 105. Good too.

(h) In the above embodiment, at least the target surface 103a of the inlet forming surface 103 has a tapered surface shape with a constant inclination angle, but as shown in FIG. 15, it has a downwardly concave curved surface shape. You can leave it there.

DESCRIPTION OF SYMBOLS 1... Drain plug device for kitchen, 4... Cap lid side mechanism part, 6... Collection basket, 7... Tap lid, 9... Tap lid rotation regulating means, 52... Support shaft, 61... Basket side cylinder part, 62... Basket body part, 62a... Collection space, 62b... Flange-like part, 71... Lid part, 72... Packing part, 72a... Vertically closest part, 101... Base part, 102... Recessed part formation part, 103... Inflow port formation Surface, 104... Placement surface, 105... Rising surface, 109... Drain port, 110... Recess, 111... Inlet space, 112... Basket arrangement space, 711... Lid base portion, 712... Detachable portion, 712a... Drooping Cylinder part, 712b...projection part.

Claims (6)

A recess is formed that has an inlet space that opens upward, and a basket arrangement space that is continuous with the inlet space and located below the inlet space, and a drain port that communicates with the recess is located at the bottom. a recessed part formed in a kitchen sink;
a stopper lid having a plate-shaped lid portion with an annular packing portion provided on the outer periphery;
A rod-shaped support shaft that can move vertically,
a basket main body portion located below the lid portion and having a collection space recessed downward; and a basket side cylinder portion through which the support shaft can be inserted; a collection basket capable of accommodating foreign matter that has flowed into the inlet space into the collection space;
The stopper lid can be moved up and down by directly or indirectly applying a driving force to a portion of the support shaft that is disposed below the collection basket through the basket-side cylindrical portion. Equipped with a mechanism part on the lid side that can
The inlet forming surface, which is the surface forming the inlet space of the recess forming part, has a shape that gradually approaches the support shaft side toward the bottom,
As the faucet lid moves downward, the packing portion comes into contact with the inlet forming surface, thereby closing the drain port, while as the faucet lid moves upward, the inlet forming surface moves away from the inlet forming surface. A drain plug device for a kitchen configured such that the drain port is in an open state when the packing part is separated,
The faucet lid side mechanism is capable of maintaining the faucet lid in a stopped state at a predetermined basic open position when the drain port is in an open state;
A portion of the packing portion that is located vertically above the inlet forming surface and closest to the inlet forming surface in the vertical direction when the stopper lid is placed in the basic open position. A certain vertically closest portion is configured to be located above the center of the inlet forming surface along the vertical direction,
A portion of the inlet forming surface that is located at least at the same height as the packing portion and is closest to the packing portion in the horizontal direction when the stopper lid is placed in the basic open position. , the surface located vertically below the packing part and between the part closest to the packing part in the vertical direction has a tapered surface shape with a constant inclination angle or a downwardly concave curved surface shape. Ori,
When the stopper lid is placed in the basic open position, the top surface of the lid portion is flush with the top surface of the base portion of the sink that is continuous with the top of the recess forming portion, and the packing portion The distance from the inlet forming surface in the horizontal direction to the inlet forming surface is greater than or equal to the distance in the vertical direction from the closest point in the vertical direction to the inlet forming surface. Drain plug device for kitchen. A cylindrical hanging tube portion extending downward is provided in the center of the lid portion,
The hanging cylinder part is arranged on the outer periphery of the car side cylinder part, and is configured to move along the outer peripheral surface of the car side cylinder part when the stopper lid moves up and down,
The stopper lid is installed with the lid part placed on the upper part of the support shaft,
By pulling up the stopper cover, the stopper cover can be removed from the support shaft while removing the hanging cylinder part from the outer periphery of the basket side cylinder part,
When the stopper lid is removed from the support shaft, by pulling up the collection basket, the basket side cylinder part is removed from the outer periphery of the support shaft, and the collection basket is removed from the basket arrangement space. The drain plug device for a kitchen according to claim 1, characterized in that the drain plug device for a kitchen is enabled. The collection basket is installed in a state where rotation along the circumferential direction of the support shaft is restricted,
3. The drain plug device for a kitchen according to claim 2, further comprising a lid rotation regulating means for regulating rotation of the hanging cylinder portion with respect to the basket side cylinder portion. A flange-shaped portion that protrudes outward is formed on the upper part of the basket main body,
The recess forming portion is
a mounting surface on which the brim-shaped part is mounted;
a rising surface that rises upward from the outer edge of the mounting surface and is continuous with the inlet forming surface;
In a state where the flanged portion is placed on the mounting surface, the upper surface of the flanged portion is located at the same height as the top of the rising surface or below the top, The outer circumferential surface of the brim-shaped portion is configured to be in contact with or close to the rising surface,
3. The kitchen drain plug device according to claim 2, wherein the upper end of the basket-side cylinder part is located at the same height as or above the upper part of the basket main body part. The lid portion is
a lid base portion placed on the support shaft;
The hanging cylinder part, and a removable part that has a plate-shaped projecting part projecting outward from the upper part of the hanging cylinder part and is configured to be detachable from the lid base part,
When the removable part is removed from the lid base part and the hanging cylinder part of the removable part is arranged on the outer periphery of the car side cylinder part, along the outer peripheral surface of the car side cylinder part. 3. The apparatus according to claim 2, wherein the projecting part is configured to be able to enter the collection space by moving the removable part so that the hanging cylinder part moves. Drain plug device for kitchen. The kitchen according to claim 1, wherein the faucet lid side mechanism section is configured to be able to move the faucet lid upward to an enlarged open position that is a position above the basic open position. Drain plug device for use.

Images