JP2022077063A - Drain plug device - Google Patents

Abstract

To provide a drain plug device capable of effectively suppressing rotation and inclination of a plug cover.SOLUTION: The drain plug device 1 comprises: a drainage channel 24 that has a horizontally long shape that is longer in a horizontal direction than in a vertical direction; an attachment member 4 that has a holding part 41, a vertical rib part 42, and a horizontal rib part 43; and a plug cover 7 that has a guide part 713 arranged on an outer circumference of the holding part 41. A center-side parallel part 713d is provided at a portion of the guide part 713 that forms a center-side slit 713b, and a side-side parallel part 713e is provided at the portion of the guide part 713 that forms a side-side slit 713c. When the drainage channel 24 is open, the center-side parallel part 713d is arranged in a state of being close to both side surfaces of the vertical rib part 42 while sandwiching the vertical rib part 42, and the side-side parallel part 713e is arranged in the state of being close to both side surfaces of the horizontal rib parts 43 while sandwiching the horizontal rib parts 43.SELECTED DRAWING: Figure 10

Description

The present invention relates to a drain plug device for opening and closing a drain flow path provided on the bottom side of a tank body.

Conventionally, by remotely controlling the stopper lid, it is provided on the bottom side of the tank body (for example, a bathtub or a washbasin), and when the water stored in the tank body is discharged, the drainage flow path into which the water flows can be opened and closed. Drain plug devices are known.

The drain plug device includes a support shaft mechanism provided with a reciprocating movable support shaft to which the plug lid is attached at one end, and a cylindrical holding portion for holding the support shaft mechanism. Those equipped with an attachment member, a displaceable operation unit (for example, an operation button), and a transmission member (for example, a wire) for transmitting the driving force due to the displacement of the operation unit to the support shaft and thus to the plug lid side. It is known (see, for example, Patent Document 1 and the like). In such a drain plug device, the transmission member moves forward with the operation to the operation unit, and the support shaft and the plug lid move forward (upward), so that the drainage flow path is opened. On the other hand, the transmission member is relocated and the support shaft and the plug lid are rewound (downward) with the operation to the operation unit, and the plug lid is a predetermined contact target part (for example, a part or a tank body attached to the tank body). By contacting with itself), the drainage channel is closed.

Further, conventionally, the drainage channel and the plug lid each have a circular shape in a plan view, and are often configured so that the tip end portion of the support shaft is attached to the center portion of the back surface of the plug lid. With such a configuration, even if the plug lid unintentionally rotates around the attachment portion of the plug lid to the support shaft, the drainage flow path may be hindered or the appearance may be deteriorated. It is possible to prevent the closure.

Japanese Unexamined Patent Publication No. 2014-34782

By the way, in consideration of drainage capacity and convenience, the drainage channel has a horizontally long shape that is longer in the horizontal direction than the vertical direction when viewed from the front, and the plug lid has the shape of the drainage channel. It is conceivable to have a corresponding horizontally long shape.

However, when the plug lid has a horizontally long shape, unlike the case where the plug lid has a circular shape, only a slight rotation of the plug lid occurs when the drainage flow path is open, and the plug lid reaches the contact target portion. It may not be possible to properly contact the stopper lid, and the water stoppage may be insufficient when the drainage flow path is closed.

Further, if the plug lid is tilted when the drainage flow path is in the open state, a load may be applied to the support shaft, the attachment member, or the like, and the support shaft or the like may be damaged or deformed. Especially when the plug has a horizontally long shape, the vertical tilt of the plug (when the plug is viewed from the side along the vertical direction, the cap is tilted so that the longitudinal direction of the plug is tilted). When it occurs, the load applied to the support shaft, the attachment member, or the like tends to be larger, and there is a greater concern that the support shaft or the like may be damaged or deformed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drain plug device capable of effectively suppressing the rotation and tilt of the plug lid.

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

Means 1. A flow path component that is provided on the bottom side of the tank body and constitutes a drainage flow path through which the water flows when the water stored in the tank body is discharged.
A support shaft mechanism having a support shaft configured to be reciprocally movable,
It has a cylindrical holding portion that holds the support shaft mechanism on the inner circumference, and also has an attachment member installed in the drainage flow path and an attachment member.
It is attached to the support shaft and has a stopper lid for opening and closing the drainage flow path.
The drainage flow path is opened by separating the plug lid from the predetermined contact target portion due to the forward movement of the support shaft, while the plug lid is separated from the predetermined contact target portion by the return movement of the support shaft. It is a drain plug device configured so that the drainage channel is closed when it comes into contact with the drainage plug device.
When viewed from the front, the drainage channel has a horizontally long shape that is longer in the horizontal direction than in the vertical direction.
The plug lid has a horizontally long shape corresponding to the shape of the drainage channel.
The holding portion is located at the lateral center portion of the drainage channel.
The attachment member has a vertical rib portion that protrudes in the vertical direction from the outer peripheral portion of the holding portion.
The stopper lid
With a plate-shaped lid,
It has a cylindrical guide portion that protrudes from the back surface of the lid portion and is arranged on the outer periphery of the holding portion.
The guide portion extends in the reciprocating direction of the support shaft, opens on the side opposite to the lid portion, and has a center-side slit in which the vertical rib portion is arranged.
At least a part of the guide portion that forms the center side slit is provided with a center side parallel portion that extends in parallel along the reciprocating movement direction of the support shaft.
At least when the drainage flow path is in the open state, the center-side parallel portion is arranged in a state of being close to both side surfaces of the vertical rib portion while sandwiching the vertical rib portion. Plug device.

It should be noted that the "close state" includes not only a state of being arranged through a slight gap (for example, 1 mm or less, preferably 0.5 mm or less) but also a state of being in contact (described later). The same applies to means 2 and 6).

According to the above means 1, the drainage channel has a horizontally long shape (for example, a rectangular shape, an elliptical shape, an oval shape, etc.), and similarly, the plug lid also has a horizontally long shape. Therefore, while increasing the drainage capacity by increasing the water flow area of the drainage channel, the drainage channel and the plug lid have a slimmer appearance compared to the case where the drainage channel and the plug lid have a circular shape. It is possible to improve the aesthetic appearance. In addition, by making the drainage channel horizontally long, it is possible to prevent the inflow of "things" (for example, containers and bar soap) into the drainage channel as compared with the case where the drainage channel is circular. It is possible to improve convenience.

On the other hand, when the plug has a horizontally long shape, the water stoppage when the drainage flow path is closed due to a slight rotation of the plug may be insufficient, or the plug may be tilted in the longitudinal direction. The support shaft, attachment member, etc. may be easily damaged or deformed.

In this regard, according to the means 1, the guide portion arranged on the outer periphery of the holding portion is provided with a center-side parallel portion extending in parallel along the reciprocating movement direction of the support shaft. Then, at least when the drainage flow path is in the open state, the center-side parallel portion is in a state of being close to both side surfaces of the vertical rib portion while sandwiching the vertical rib portion that protrudes in the vertical direction from the outer peripheral portion of the holding portion. Placed in. Therefore, even if a force that causes rotation or tilting is applied to the plug lid, the center-side parallel portion tilts with respect to the vertical rib portion or the rotation direction of the plug lid (centering on the mounting portion of the plug lid with respect to the support shaft). Assuming that the stopper lid rotates, it hardly moves in the direction of rotation of the stopper lid). Therefore, it is possible to extremely effectively suppress the rotation and tilting of the plug lid. As a result, good water stoppage can be obtained more reliably when the drainage flow path is closed, and damage or deformation of the support shaft, attachment member, or the like can be prevented more reliably.

In particular, according to the above means 1, the center-side parallel portion and the vertical rib portion can more reliably suppress the "longitudinal tilt of the plug lid" that easily leads to damage or deformation of the support shaft or the like, and the support shaft or the like can be suppressed. It is possible to effectively enhance the function of preventing damage and deformation in.

Means 2. The attachment member has a lateral rib portion that projects laterally from the outer peripheral portion of the holding portion.
The guide portion extends in the reciprocating movement direction of the support shaft, opens on the side opposite to the lid portion, and has a side slit on which the lateral rib portion is arranged.
At least a part of the guide portion that forms the side slit is provided with a side parallel portion that extends in parallel along the reciprocating movement direction of the support shaft.
At least when the drainage flow path is in the open state, the side parallel portion is arranged in a state of being close to both side surfaces of the lateral rib portion while sandwiching the lateral rib portion. The drain plug device according to 1.

According to the means 2, the guide portion is provided with a side-side parallel portion extending in parallel along the reciprocating movement direction of the support shaft. Then, at least when the drainage flow path is in the open state, the side parallel portion is in a state of being close to both side surfaces of the lateral rib portion while sandwiching the lateral rib portion protruding laterally from the outer peripheral portion of the holding portion. Placed in. Therefore, even if a force that causes rotation or tilting is applied to the plug lid, the side parallel portion hardly tilts with respect to the lateral rib portion or moves in the rotation direction of the plug lid. As a result, in combination with the provision of the parallel portion on the center side and the vertical rib portion, it is possible to more effectively suppress the occurrence of rotation and inclination of the plug lid. As a result, it is possible to ensure good water stopping when the drainage flow path is closed, and to prevent damage and deformation of the support shaft, the attachment member, and the like very effectively.

Means 3. As the flow path component, a cylindrical drainage port member that is inserted and installed in a mounting hole formed in the tank body is provided.
The drainage port member has a pair of attachment support portions provided at positions where the holding portions are placed in between.
The attachment member is placed on the attachment support portions in a state of being bridged over the pair of attachment support portions, and is located on the side opposite to the holding portion in the vertical rib portion and the lateral rib portion. With a plate-like part that is connected to each end
The plate-shaped portion includes an inner edge portion that forms a gap in which the guide portion is arranged between the plate-shaped portion and the outer peripheral portion of the holding portion.
The drain plug device according to means 2, wherein the entire area of the inner edge portion is formed on the holding portion side of the pair of attachment support portions.

According to the above means 3, the end portion of the vertical rib portion opposite to the holding portion is connected to the plate-shaped portion. Therefore, when the drainage flow path is viewed from the front, the vertical rib portion can be made shorter. Further, the end portion of the lateral rib portion opposite to the holding portion is connected to the plate-shaped portion, and the entire inner edge portion of the plate-shaped portion is formed on the holding portion side of the pair of attachment support portions. There is. That is, when the drainage flow path is viewed from the front, the length of the lateral rib portion is set so as not to reach the pair of attachment support portions. Therefore, when the drainage flow path is viewed from the front, the lateral rib portion can be made shorter. Since each rib portion can be made shorter in this way, it is possible to more reliably prevent foreign matter from adhering to the attachment member (particularly the rib portion). As a result, hygiene and cleanability can be improved.

Means 4. The surface of the plate-shaped portion has a flat surface shape and also has a flat surface shape.
The drain plug device according to means 3, wherein the vertical rib portion and the lateral rib portion are connected to the plate-shaped portion in a state of being flush with each other on the surface of the plate-shaped portion. ..

According to the above means 4, the surface of the plate-shaped portion (the surface located on the water storage space side of the tank body) has a flat surface shape, and each rib portion is flush with the flat surface-like surface. It is connected to the plate-shaped part in the state of. Therefore, it is possible to more effectively prevent foreign matter from adhering to the attachment member, and it is possible to make it more difficult for resistance such as catching to occur during cleaning. This makes it possible to further improve hygiene and cleanability.

Means 5. The drain plug device according to means 3 or 4, wherein the attachment support portion is covered with the plate-shaped portion.

According to the above means 5, the attachment support portion is covered with the plate-shaped portion. Therefore, the attachment support portion can be made invisible or difficult to see from the outside (the water storage space side of the tank body), and the deterioration of the appearance quality due to the attachment support portion becoming visible from the outside can be prevented.

Further, according to the above means 5, since the attachment support portion is covered with the plate-shaped portion, it is possible to prevent dirt and foreign matter from adhering to the attachment support portion regardless of the shape of the attachment support portion. Therefore, regarding the shape design of the attachment support portion, the limitation from the viewpoint of preventing the adhesion of dirt and foreign matter can be reduced, and the degree of freedom regarding the shape design of the attachment support portion can be further increased.

Means 6. The plug lid protrudes from the back surface of the lid portion, is provided at a position where the guide portion is placed in between, and is provided with a pair of side portions having a straight portion extending along the reciprocating movement direction of the support shaft. Has side protrusions,
The attachment member comprises a pair of lateral hangings that are adjacent to the side surface of the pair of attachment supports on the opposite side of the holding portion.
At least when the drainage flow path is in the open state, each of the straight portions in the pair of side-side protrusions is arranged in a state of being parallel and close to the side surface of the outer hanging portion. The drain plug device according to any one of means 3 to 5.

According to the means 6, each of the straight portions in the pair of side protrusions is arranged in parallel and close to the side surface of the lateral hanging portion at least when the drainage flow path is open. Therefore, when a force that causes rotation or tilt is applied to the plug lid, the lateral droop is located farther from the tip of the support shaft (the center of rotation or tilt of the plug lid). This can regulate the side protrusion from tilting or moving along the direction of rotation of the plug lid. As a result, the rotation of the plug lid and the inclination in the longitudinal direction can be suppressed very effectively. As a result, it is possible to more reliably prevent damage and deformation of the support shaft, the attachment member, and the like.

Means 7. A mounting member is provided, which is installed with the tank body sandwiched between the flange portion formed so as to protrude from the end portion of the drainage port member.
The drain plug device according to any one of means 3 to 6, wherein the mounting member includes a reinforcing support portion that supports the attachment support portion from the back side thereof.

According to the means 7, the mounting member includes a reinforcing support portion that supports the attachment support portion from the back side (the side opposite to the water storage space). Therefore, the durability of the attachment support portion can be enhanced, and damage or deformation of the attachment support portion can be prevented more reliably. In addition, the attachment member can be installed in a more stable state.

In addition, "the width of the reinforcing support portion along the lateral direction is set to be equal to or less than the width of the attachment support portion along the lateral direction, and the entire area of the reinforcing support portion is configured to overlap with the attachment support portion." Is preferable. With such a configuration, it is possible to more reliably prevent foreign matter and the like from adhering to the reinforcing support portion, and it is possible to prevent a decrease in drainage capacity due to the presence of the reinforcing support portion.

It is a figure which shows the drain plug device and the like when viewed from the front. It is a perspective schematic diagram which shows the schematic structure of a bathtub and the like. FIG. 3 is a sectional view taken along line JJ of FIG. It is a figure which shows the drainage port member and the like when viewed from the front. It is a perspective view of the attachment member. FIG. 3 is a cross-sectional view taken along the line KK of FIG. 3 when the drainage channel is in the open state. It is a figure which shows the attachment member and the like when viewed from the front. It is a perspective view of a stopper lid. It is sectional drawing of the drain plug device when the drainage flow path is opened. It is a perspective view which shows the positional relationship of a plug lid and an attachment member. It is a figure which shows the drain plug device when seen from the back side of a bathtub.

Hereinafter, one embodiment will be described with reference to the drawings. The drain plug device 1 is a device for switching between a state in which water can be stored and a state in which water can be drained in the bathtub 100 as a tank body, and as shown in FIGS. 1 and 2, from the bottom wall portion 101 in the bathtub 100. It is provided at a portion of the side wall portion 102. The bottom wall portion 101 is a portion constituting the bottom surface of the bathtub 100, and the upper surface thereof is configured to form an inclined surface slightly lowered toward the drain plug device 1. The side wall portion 102 is a portion erected on the peripheral edge of the bottom wall portion 101, and in the present embodiment, the portion continuous with the bottom wall portion 101 is configured to form a curved surface. Prior to the description of the drain plug device 1, first, the configuration of the bathtub 100 and its surroundings will be described in more detail.

As shown in FIG. 3, the bathtub 100 includes a mounting hole 103 formed through a portion from the bottom wall portion 101 to the side wall portion 102, and the drain plug device 1 is installed corresponding to the mounting hole 103. ing. The mounting hole 103 is formed so as to penetrate diagonally with respect to the vertical direction.

Further, the mounting hole 103 has a horizontally long shape in which the horizontal direction is longer than the vertical direction (direction orthogonal to the horizontal direction) when viewed from the front surface (the water storage space side of the bathtub 100). In the present embodiment, the shape of the mounting hole 103 when viewed from the front is a shape of two parallel long sides extending in the lateral direction and two curved shapes connecting the ends of these two long sides. It has the same shape as an oval consisting of the short side of. In the present embodiment, the lateral direction is the width direction of the side wall portion 102 in which the mounting hole 103 is formed (that is, the direction in which the side wall portion 102 extends when viewed in a plan view), and is indicated by a thick arrow in FIG. Refers to the direction.

Returning to FIG. 2, the bathtub 100 in the present embodiment is used in, for example, a nursing care facility, and is installed on an installation surface 111 having a substantially flat surface shape. The installation surface 111 is composed of a slightly recessed portion on the bathroom floor surface, and the recessed portion also functions as a waterproof pan.

Further, two guide rails 111a are provided in parallel on the installation surface 111, and guide wheels (not shown) provided on the bottom wall portion 101 of the bathtub 100 are provided for each guide rail 111a. It is in a mounted state. The bathtub 100 can be slidably moved in the left-right direction (the direction in which the guide rail 111a extends and is indicated by the black arrow in FIG. 2) when viewed from the washing place 112 side described below. A drainage ditch (not shown) is provided on the installation surface 111, and water discharged from the bathtub 100 flows into the drainage ditch through the drain plug device 1.

In addition, a washing place 112 is installed at a position adjacent to the bathtub 100 on the bathroom floor. In the present embodiment, the height of the washing place 112 (upper surface) with respect to the installation surface 111 is relatively small (for example, 20 mm or less), which is sufficiently smaller than the conventional height (for example, 30 mm or more). Has been done. That is, in the present embodiment, the installation surface 111 is provided at substantially the same height as the washing place 112 (upper surface), instead of the configuration in which the installation surface 111 is relatively greatly depressed with respect to the washing place 112 as in the conventional case.

Next, the drain plug device 1 will be described. As shown in FIG. 3, the drain plug device 1 includes a drain port member 2, a mounting member 3, an attachment member 4, a support shaft mechanism 5, a release wire 6, a plug lid 7, and a guide portion 8.

First, the drainage port member 2 will be described. The drainage port member 2 is a tubular component that is installed in a state of being inserted into the mounting hole 103. As shown in FIGS. 3 and 4, the drainage port member 2 includes a main body portion 21, a flange portion 22, and an attachment support portion 23. Note that FIG. 4 is a diagram showing the drainage port member 2 and the like when viewed from the front (the water storage space side of the bathtub 100) in a state where the attachment member 4 and the support shaft mechanism 5 and the like are removed.

The main body portion 21 includes a horizontally long cylindrical portion corresponding to the shape of the mounting hole 103, and a widened portion having a shape that gradually expands from one end of the long cylindrical portion toward the water storage space side of the bathtub 100. ing. The elongated cylindrical portion has a shape including two parallel flat plate-shaped portions extending in the lateral direction and facing each other, and two curved plate-shaped portions connected to the ends of the flat plate-shaped portions. Further, in the present embodiment, a step portion 21a for locking the locking mounting portion 47, which will be described later, is formed on the inner surface of the flat plate-shaped portion.

Further, the inner space of the main body 21 constitutes a drainage flow path 24 into which the drainage flows when the water stored in the bathtub 100 is discharged. The drainage channel 24 has a horizontally long shape (in the present embodiment, an oval shape) in which the horizontal direction is longer than the vertical direction when viewed from the front (the water storage space side of the bathtub 100). In the present embodiment, the drainage port member 2 corresponds to the “flow path component”.

The main body portion 21 is inserted into the mounting hole 103 in a state in which the extending direction (the central axis CL direction of the main body portion 21) is inclined with respect to the vertical direction. Further, in the present embodiment, the portion from the surface of the bottom wall portion 101 to the inner surface of the main body portion 21 has a continuous surface shape with almost no step. As a result, the inflow of drainage into the drainage channel 24 can be smoothly performed.

The flange portion 22 is formed so as to protrude from the outer periphery on one end side of the main body portion 21, and is mainly used for attaching the drain port member 2 to the bathtub 100. The flange portion 22 has an oval shape that is one size larger than the mounting hole 103 as a whole.

The attachment support portion 23 has a role of supporting the attachment member 4 in the drainage flow path 24. The attachment support portion 23 extends in the vertical direction and is connected to the inner side surfaces of the two flat plate-shaped portions of the main body portion 21. Further, a pair of attachment support portions 23 are provided at positions where a holding portion 41, which will be described later, is placed between them. The attachment support portion 23 is not necessarily limited to connecting the inner side surfaces of the main body portion 21 to each other. For example, the attachment support portion 23 may be configured by two protrusions protruding from opposite portions on the inner surface of the main body portion 21.

Further, in the present embodiment, female screw portions 25 (see FIG. 6) are provided at the vertical (longitudinal) central portion of each attachment support portion 23 and at both ends in the lateral direction at the other end of the main body portion 21, respectively. Has been done.

Next, the mounting member 3 will be described. The mounting member 3 has a function of attaching the drainage port member 2 to the bathtub 100 by being installed with the bathtub 100 sandwiched between the drainage port member 2 and the bathtub 100. As shown in FIGS. 3 and 6, the mounting member 3 has a cylindrical base portion 31, an outward protrusion portion 32, and a reinforcing support portion 33.

The tubular base portion 31 includes a long cylindrical portion that is one size larger than the long cylindrical portion of the main body portion 21. Then, the long cylindrical portion of the main body portion 21 is inserted through the inner circumference of the long cylindrical portion of the tubular base portion 31.

The outward protrusion 32 is formed so as to project from one end of the tubular base 31, and has an oval shape when viewed from the front surface (the water storage space side). Further, each of the laterally end portions of the outward protrusion 32 is provided with a hook holding portion 32a having a hook-shaped tip portion. The hook holding portion 32a is for holding the release wire 6 in a hooked state. It should be noted that only one hook holding portion 32a may be provided. Further, using a predetermined clip, a portion of the release wire 6 that is arranged ahead of the hook holding portion 32a (on the side opposite to the support shaft mechanism 5) is located in the bathtub 100 (for example, a leg portion of the bathtub 100 (not shown)). It may be fixed to.

The reinforcing support portion 33 comes into contact with the back surface of the attachment support portion 23 and has a role of supporting the attachment support portion 23 from the back side. The reinforcing support portion 33 extends in the vertical direction, and both ends thereof are connected to the inner side surface of the tubular base portion 31.

In the present embodiment, the width of the reinforcing support portion 33 along the lateral direction is set to be equal to or less than the width of the attachment support portion 23 along the lateral direction, so that the entire area of the reinforcing support portion 33 overlaps with the attachment support portion 23. It is configured. This makes it possible to more reliably prevent foreign matter and the like from adhering to the reinforcing support portion 33, and to prevent a decrease in drainage capacity due to the presence of the reinforcing support portion 33.

In addition, a male screw 10 described later is inserted at a position corresponding to the female screw portion 25 at both ends in the lateral direction at the vertical (longitudinal) central portion of the reinforcing support portion 33 and the other end of the tubular base portion 31. The hole 34 to be formed is formed through.

With the mounting member 3 configured as described above, the drainage port member 2 is installed in the bathtub 100 as follows. That is, while the main body 21 of the drainage port member 2 is inserted into the mounting hole 103, the predetermined male screw 10 is passed through the hole 34 while the main body 21 is inserted into the tubular base 31 of the mounting member 3. Screw into the portion 25. As a result, the bathtub 100 is sandwiched between the flange portion 22 and the outward protrusion 32, and the drainage port member 2 is installed in the bathtub 100.

Further, in the state where the drainage port member 2 is installed, an annular packing portion 9 made of an elastically deformable material (for example, resin, rubber, etc.) is arranged between the flange portion 22 and the bathtub 100. The packing portion 9 is installed in a state of being sandwiched between the flange portion 22 and the bathtub 100, and prevents water leakage through the mounting hole 103.

Next, the attachment member 4 will be described. The attachment member 4 is a component for holding the support shaft mechanism 5. The attachment member 4 is arranged in the drainage flow path 24, and is located on the back side of the plug lid 7 when the plug lid 7 is viewed from the front side (the water storage space side of the bathtub 100).

As shown in FIG. 5, the attachment member 4 includes a holding portion 41, a vertical rib portion 42, a lateral rib portion 43, a plate-shaped portion 44, an outer hanging portion 45, an inner hanging portion 46, and a locking mounting portion 47. ing.

The holding portion 41 is for holding the support shaft mechanism 5. The holding portion 41 has a cylindrical shape and is located at the center of the drainage channel 24 in the horizontal direction and the vertical direction, respectively (see FIG. 7). Note that FIG. 7 is a diagram showing an attachment member 4 and the like when viewed from the front (the water storage space side) in a state where the support shaft mechanism 5 and the plug lid 7 and the like are removed.

The vertical rib portion 42 and the lateral rib portion 43 support the holding portion 41 and have functions such as suppressing the rotation and tilt of the plug 7 by cooperating with the guide portion 713 described later.

The vertical rib portions 42 are portions that protrude in the vertical direction from the outer peripheral portion of the holding portion 41, and are provided in pairs at positions where the central axis of the holding portion 41 is placed between them. On the other hand, the lateral rib portion 43 projects laterally from the central portion between the two vertical rib portions 42 along the circumferential direction of the holding portion 41 in the outer peripheral portion of the holding portion 41, and is the center of the holding portion 41. A pair is provided at the position where the shaft is placed between them. Therefore, in the present embodiment, the vertical rib portions 42 and the lateral rib portions 43 are provided at equal intervals and alternately along the circumferential direction of the holding portion 41.

Further, the ends of the vertical rib portion 42 and the lateral rib portion 43 on the opposite side of the holding portion 41 are connected to the plate-shaped portion 44, respectively. In particular, in the present embodiment, the vertical rib portion 42 and the horizontal rib portion 43 have a plate-shaped portion 44 in a state where the surfaces thereof (the surface of the bathtub 100 on the water storage space side) are flush with the surface of the plate-shaped portion 44. Is linked to. Therefore, the portion from the surface of the vertical rib portion 42 and the horizontal rib portion 43 to the surface of the plate-shaped portion 44 has a flat shape without a step.

Further, the vertical rib portion 42 has two side surfaces hanging from both end edges in the width direction of the surface thereof, and these two side surfaces are parallel to each other. Similarly, the lateral rib portion 43 has two side surfaces hanging from both end edges in the width direction of the surface thereof, and these two side surfaces are parallel to each other.

The plate-shaped portion 44 functions as a blindfold for the attachment support portion 23 and the like, and simplifies the shape of the portion located in the drainage flow path 24 (particularly the portion located on the water storage space side of the bathtub 100) in the drain plug device 1. It has functions such as improving cleanability. The plate-shaped portion 44 has a rectangular plate shape with a hole formed in the central portion, and the surface of the plate-shaped portion 44 (the surface on the water storage space side) is a flat surface without unevenness.

Further, the plate-shaped portion 44 is placed on the attachment support portions 23 in a state of being bridged over the pair of attachment support portions 23, and the surface of the attachment support portion 23 (on the water storage space side) is mounted on the plate-shaped portion 44. The whole area is covered. As a result, the attachment support portion 23 is invisible or difficult to see from the outside (for example, the water storage space side) (see FIG. 7).

In addition, the plate-shaped portion 44 includes an inner edge portion 44a forming a gap between the outer peripheral portion of the holding portion 41 and a gap in which the guide portion 713 (leg portion 713a) described later is arranged. The inner edge portion 44a has an arc shape when viewed from the front surface (the water storage space side of the bathtub 100). Further, the entire area of the inner edge portion 44a is located closer to the holding portion 41 than the pair of attachment support portions 23 when viewed from the front. That is, the inner edge portion 44a is located between the pair of attachment support portions 23, and as a result, the lateral rib portion 43 is relatively short so as not to reach the attachment support portion 23. In the present embodiment, the length of the lateral rib portion 43 (the amount of protrusion from the holding portion 41) is the same as the length of the vertical rib portion 42.

The outer hanging portion 45 and the inner hanging lower portion 46 have a role of more reliably restricting the movement of the attachment member 4 in the drainage flow path 24. The outer hanging portion 45 is a portion of the plate-shaped portion 44 that hangs down from both end edges in the longitudinal direction (lateral direction), and is provided in pairs. Each lateral hanging portion 45 is arranged adjacent to a side surface of the attachment support portion 23 located on the opposite side of the holding portion 41. Further, in the present embodiment, the surface of each outer hanging portion 45 located on the side opposite to the holding portion 41 and located on the center side in the width direction has a flat surface shape.

Further, in the present embodiment, two water passage portions without a structure such as a rib are formed between the side surface of the outer hanging portion 45 of the attachment member 4 and the inner surface surface of the drainage port member 2. The drainage mainly passes through the water passage portion of the drainage channel 24.

The medial hanging portion 46 is a portion of the plate-shaped portion 44 that hangs down from a portion between the inner edge portion 44a and the lateral hanging portion 45, and is provided in pairs so as to be parallel to and opposed to the lateral hanging portion 45. .. The medial hanging portion 46 is arranged adjacent to the side surface of the attachment support portion 23 located on the holding portion 41 side.

Further, the outer hanging portion 45 and the inner hanging lower portion 46 are provided from the side surface of the attachment support portion 23 to the side surface of the reinforcing support portion 33, respectively. Therefore, the contact boundary between the attachment support portion 23 and the reinforcing support portion 33 is covered by the lateral hanging portion 45 and the medial hanging portion 46. This makes it possible to more reliably prevent the adhesion of dirt and the intrusion of foreign matter between the attachment support portion 23 and the reinforcing support portion 33.

The locking attachment portion 47 is used to attach the attachment member 4 to the drainage port member 2. The locking attachment portion 47 is an end edge of the plate-shaped portion 44 in the lateral direction (longitudinal direction), and hangs down from a portion located between the vertical rib portion 42 and the medial hanging portion 46. A protrusion is provided at the tip of the locking attachment portion 47, and the attachment member 4 is attached to the drainage port member 2 by locking the protrusion to the step portion 21a.

Next, the support shaft mechanism 5 will be described. The support shaft mechanism 5 is a mechanism for reciprocating the plug lid 7 to switch the open / closed state of the drainage flow path 24. As shown in FIGS. 3 and 6, the support shaft mechanism 5 includes a case portion 51 and a support shaft 52.

The case portion 51 has a cylindrical shape and is held by the inner circumference of the holding portion 41. As a result, the support shaft mechanism 5 is installed at each center in the horizontal direction and the vertical direction in the drainage flow path 24. Further, in the present embodiment, a tube member 61, which will be described later, of the release wire 6 is indirectly attached to the case portion 51 via a predetermined component (not shown). The tube member 61 may be directly attached to the case portion 51.

The support shaft 52 has a cylindrical shape with a closed tip portion, and at least a part thereof is arranged in the inner space of the drainage port member 2. The support shaft 52 is movable back and forth along the central axis CL direction of the main body 21 (that is, diagonally with respect to the vertical direction), and is inside the holding portion 41 (inner circumference of the case portion 51 in this embodiment). Have been placed.

Further, one end portion (tip portion) of the support shaft 52 protrudes from the one end side opening of the case portion 51 to the outside of the case portion 51, and is provided in the center portion of the back surface of the plug lid 7 (the lid portion 711 described later). It is fitted to the shaft-mounted portion 712, which will be described later. As a result, the plug lid 7 is attached to one end of the support shaft 52, and the plug lid 7 is supported by the support shaft 52.

Inside the support shaft 52, an absorber spring (not shown) that can be elastically deformed along the reciprocating movement direction of the support shaft 52 is provided. When a load along the reciprocating movement direction of the support shaft 52 is applied to the plug lid 7, the load is absorbed by compression deformation of the absorber spring, and as a result, the support shaft 52, the attachment member 4, etc. are damaged or deformed. Can be prevented more effectively.

Further, a return spring (not shown) is arranged in the case portion 51 in a compressed state. The return spring is for pulling the plug 7 in the return direction (diagonal downward direction), and a force is applied from the return spring to the support shaft 52 along the return direction (diagonal downward direction). ing.

Next, the release wire 6 will be described. The release wire 6 is for transmitting the driving force generated by displacing an operation unit (for example, a reciprocating movable operation button, a rotatable operation handle, etc.) (not shown) to the plug 7 side. .. In the present embodiment, the release wire 6 is provided so as to project diagonally downward from the support shaft mechanism 5. The release wire 6 includes a tubular tube member 61 and a transmission member 62 (for example, a wire or the like) arranged in the tube member 61 so as to be reciprocally movable.

One end of the tube member 61 is connected to the case portion 51, while the other end is connected to an operating device (not shown) having the operating portion, and the transmission member 62 is connected to the plug 7 from the operating device side. Guide to the side. The operating device is provided with a lock mechanism (not shown) that can be locked while the transmission member 62 is moved forward (moved from the operating device side to the plug 7 side). Then, every time a predetermined operation is performed on the operation unit, the transmission member 62 is alternately locked and unlocked by the lock mechanism. The lock mechanism may be provided on the support shaft mechanism 5.

The transmission member 62 reciprocates in the tube member 61 with the displacement of the operation unit. One end of the transmission member 62 is in contact with the support shaft 52, and the support shaft 52 reciprocates as the transmission member 62 reciprocates.

Next, the plug lid 7 will be described. The plug lid 7 is a plug for opening and closing the drainage flow path 24, and reciprocates diagonally with respect to the vertical direction as the support shaft 52 reciprocates. As shown in FIG. 8, the stopper lid 7 has a stopper lid main body 71 and a closing packing portion 72 made of an elastically deformable material attached to the stopper lid main body 71.

The stopper lid main body 71 includes a lid portion 711, a shaft-mounted portion 712 (see FIGS. 3 and 6), a guide portion 713, and a side-side protruding portion 714. In the present embodiment, the plug lid main body 71 is configured by combining two parts. The stopper lid main body 71 may be composed of one component.

The lid portion 711 is a portion that makes it difficult to visually recognize the drainage flow path 24 from the outside (the water storage space side of the bathtub 100) to improve the appearance quality, and also plays a function of opening and closing the drainage flow path 24 together with the closing packing portion 72. The lid portion 711 has a flat plate shape, and when viewed from the front, it has a horizontally long shape (an oval shape in this embodiment) corresponding to the shape of the drainage flow path 24.

The shaft-mounted portion 712 is a portion for mounting the plug lid 7 (cover portion 711) to the support shaft 52. The shaft-mounted portion 712 has a short cylindrical shape and is formed in the center portion of the back surface of the lid portion 711.

The guide portion 713 is a portion that controls the rotation and tilt of the plug lid 7 around the mounting position of the plug lid 7 with respect to the support shaft 52 and the guide of the plug lid 7 when the plug lid 7 reciprocates. be. The guide portion 713 is a cylindrical portion formed on the back surface of the lid portion 711 on the outside of the shaft-mounted portion 712, and is arranged on the outer periphery of the holding portion 41 (see FIGS. 3 and 6). Further, the guide portion 713 is provided with a plurality of (four in the present embodiment) leg portions 713a separated along the circumferential direction of the guide portion 713 by the center side slit 713b and the side side slit 713c described below. ing.

Further, each of the guide portions 713 extends in the reciprocating movement direction of the support shaft 52, and includes a center side slit 713b and a side side slit 713c that open on the side opposite to the lid portion 711. The center side slits 713b and the side side slits 713c are provided at equal intervals and alternately along the circumferential direction of the guide portion 713.

The center side slit 713b is a slit in which the vertical rib portion 42 is arranged. At least a part of the guide portion 713 (leg portion 713a) forming the center side slit 713b is provided with a center side parallel portion 713d extending in parallel along the reciprocating movement direction of the support shaft 52. .. The center-side parallel portion 713d is composed of two parallel planes facing each other in the guide portion 713 (leg portion 713a).

The side slit 713c is a slit in which the lateral rib portion 43 is arranged. Further, at least a part of the guide portion 713 (leg portion 713a) forming the side side slit 713c is provided with a side side parallel portion 713e extending in parallel along the reciprocating movement direction of the support shaft 52. .. The side parallel portion 713e is composed of two parallel planes facing each other in the guide portion 713 (leg portion 713a).

The side protruding portion 714 is for more reliably restricting the rotation and inclination of the plug lid 7 around the mounting position of the plug lid 7 with respect to the support shaft 52. The side projecting portions 714 project from the back surface of the lid portion 711 and are provided in pairs at positions where the guide portions 713 are placed in between. In the present embodiment, each side-side protrusion 714 is composed of two protrusions that are vertically separated from each other. Further, a straight line portion 714a extending along the reciprocating movement direction of the support shaft 52 is provided on the side surface of each side protrusion 714 on the guide portion 713 side (the side surface of the two protrusions on the guide portion 713 side). There is.

The closing packing portion 72 has an oval plate shape, and is attached to the plug lid main body 71 by being sandwiched between the two components constituting the plug lid main body 71 (see FIG. 6). The outer edge shape of the closing packing portion 72 is substantially the same as the outer edge shape of the lid portion 711. Therefore, when viewed from the front (the water storage space side of the bathtub 100), the closing packing portion 72 is hidden by the lid portion 711, so that a better aesthetic appearance can be obtained.

Next, the guide unit 8 will be described. The guide portion 8 is provided in front of the portion of the support shaft mechanism 5 where the release wire 6 protrudes, and is for guiding the release wire 6 to the hook holding portion 32a side while protecting the release wire 6. Is. As shown in FIG. 3, the guide portion 8 is a plate-shaped portion curved in a U shape, and is provided on the other end side of the mounting member 3. Although not shown, the guide portion 8 is brought into contact with the release wire 6 to bend the release wire 6 and guide the release wire 6 to the hook holding portion 32a side.

Further, when viewed from the front (the water storage space side of the bathtub 100), the guide portion 8 is configured so as not to protrude outward (laterally) from the side surface of the outer hanging portion 45. Therefore, the drainage mainly passes through the water passage portion of the drainage flow path 24, and the flow of the drainage through the water passage portion is not obstructed by the guide portion 8. In the present embodiment, the guide portion 8 is integrally formed with the mounting member 3, but both may be provided separately.

In the drain plug device 1 configured as described above, the open / closed state of the drainage channel 24 is switched as follows. That is, the support shaft 52 and the plug 7 are moved forward (moved diagonally upward) by moving the transmission member 62 forward in accordance with the operation on the operation unit. Then, by locking the transmission member 62 by the lock mechanism, the closing packing portion 72 is maintained in a state of being separated from the inner side surface of the drain port member 2. As a result, the drainage channel 24 is opened (see FIGS. 6 and 9).

On the other hand, when the drainage flow path 24 is in the open state, the transmission member 62 is slightly moved forward in accordance with the operation with respect to the operation unit, whereby the lock of the transmission member 62 by the lock mechanism is released. With the release of the lock, the support shaft 52 and the plug lid 7 are restored (moved diagonally downward) by the return spring, and the entire outer peripheral portion of the closing packing portion 72 comes into contact with the inner surface of the drain port member 2. As a result, the drainage channel 24 is closed (see FIG. 3). In the present embodiment, the drainage port member 2 corresponds to the "contact target portion".

Further, in the present embodiment, at least when the drainage flow path 24 is in the open state, as shown in FIG. 10, the center side parallel portion 713d sandwiches the vertical rib portion 42 and both side surfaces of the vertical rib portion 42. It is placed in close proximity to. It should be noted that the "close state" includes not only a state of being arranged through a slight gap (for example, 1 mm or less, preferably 0.5 mm or less) but also a state of being in contact (hereinafter,). , Similar). Therefore, at least when the drainage flow path 24 is in the open state, the center-side parallel portion 713d is in a state of being adjacently arranged or in contact with one side surface of the vertical rib portion 42 via a slight gap, and is in contact with the vertical rib portion 42. It is in a state of being adjacently arranged or in contact with the other side surface of the vertical rib portion 42 through a slight gap.

Further, at least when the drainage flow path 24 is in the open state, the side parallel portion 713e is arranged in a state of being close to both side surfaces of the lateral rib portion 43 while sandwiching the lateral rib portion 43. That is, at least when the drainage flow path 24 is in the open state, the side-side parallel portion 713e is in a state of being adjacently arranged or in contact with one side surface of the lateral rib portion 43 through a slight gap, and is in contact with each other. It is in a state of being adjacently arranged or in contact with the other side surface of the lateral rib portion 43 through a slight gap.

In addition, as shown in FIGS. 10 and 11, at least when the drainage flow path 24 is in the open state, each straight portion 714a in the pair of side-side protrusions 714 is a side surface (holding portion 41) of the outer hanging portion 45. Is placed parallel and close to the flat surface on the opposite side surface). That is, at least when the drainage flow path 24 is in the open state, the straight portion 714a of the one side protrusion 714 is adjacently arranged or in contact with the side surface of the one outer hanging portion 45 through a slight gap. The straight portion 714a of the other side protruding portion 714 is in a state of being adjacent to or in contact with the side surface of the other lateral hanging portion 45 through a slight gap.

As described above, the side parallel portions 713e are arranged in a state of being close to both side surfaces of the lateral rib portions 43 while sandwiching the lateral rib portions 43, so that at least the drainage flow path 24 is in an open state. When a vertically downward load is applied to the stopper lid 7 (cover portion 711) at a certain time, the guide portion 713 comes into contact with the lateral rib portion 43, and the load is applied from the guide portion 713 to the lateral rib portion 43. It is designed to be transmitted. That is, when a vertically downward load is applied to the stopper lid 7 (cover portion 711) at least when the drainage flow path 24 is in the open state, the load is distributed and transmitted to at least the lateral rib portion 43. ing.

As described in detail above, according to the present embodiment, the drainage channel 24 has a horizontally long shape, and similarly, the plug lid 7 (cover portion 711) also has a horizontally long shape. Therefore, while increasing the drainage capacity by increasing the water flow area of the drainage flow path 24, the drainage flow path 24 and the plug lid 7 are compared with the case where the drainage flow path 24 and the plug lid 7 are circular. It can have a slim appearance and can improve the aesthetic appearance. Further, by making the drainage channel 24 horizontally long, it is less likely that "things" (for example, a container, bar soap, etc.) flow into the drainage channel 24 as compared with the case where the drainage channel 24 is circular. It is possible to improve the convenience.

On the other hand, when the plug lid 7 has a horizontally long shape, the plug lid 7 (closing packing portion 72) with respect to the drain port member 2 when the drainage flow path 24 is closed due to a slight rotation of the plug lid 7. The contact state is poor and the water blocking property is insufficient, or the stopper lid 7 is tilted in the longitudinal direction (the stopper lid 7 is tilted so that the lateral end portion of the stopper lid 7 moves up and down in FIG. 6). There is a risk that damage or deformation of the 7, support shaft 52, attachment member 4, or the like is likely to occur.

In this respect, in the present embodiment, at least when the drainage flow path 24 is in the open state, the center side parallel portion 713d is arranged in a state of being close to both side surfaces of the vertical rib portion 42 while sandwiching the vertical rib portion 42. Has been done. Therefore, even if a force that causes rotation or tilting is applied to the plug lid 7, the center-side parallel portion 713d tilts with respect to the vertical rib portion 42 or the rotation direction of the plug lid 7 (shaft-mounted portion 712). When it is assumed that the stopper lid 7 rotates as the center, it hardly moves in the rotation direction of the stopper lid 7). Therefore, it is possible to extremely effectively suppress the rotation and tilting of the plug lid 7. As a result, good water stoppage can be obtained more reliably when the drainage flow path 24 is closed, and damage or deformation of the support shaft 52, the attachment member 4, etc. can be prevented more reliably.

In particular, according to the present embodiment, the center-side parallel portion 713d and the vertical rib portion 42 can more reliably suppress the “longitudinal inclination” of the plug lid 7, which tends to lead to damage or deformation of the support shaft 52 and the like. , The function of preventing damage and deformation of the support shaft 52 and the like can be effectively enhanced.

In addition, at least when the drainage flow path 24 is in the open state, the side parallel portions 713e are arranged in a state of being close to both side surfaces of the lateral rib portion 43 while sandwiching the lateral rib portion 43. Therefore, even if a force that causes rotation or tilting is applied to the plug lid 7, the side parallel portion 713e is almost always tilted with respect to the lateral rib portion 43 or moved in the rotation direction of the plug lid. It disappears. As a result, in combination with the provision of the center-side parallel portion 713d and the vertical rib portion 42, it is possible to more effectively suppress the occurrence of rotation and tilting of the plug lid 7. As a result, it is possible to ensure good water stopping when the drainage flow path 24 is closed, and to prevent damage and deformation of the support shaft 52, the attachment member 4, and the like very effectively.

Further, in the present embodiment, the end portion of the vertical rib portion 42 opposite to the holding portion 41 is connected to the plate-shaped portion 44, and when the drainage flow path 24 is viewed from the front, a pair. The length of the lateral rib portion 43 is set so as not to reach the attachment support portion 23 of the above. Therefore, when the drainage flow path 24 is viewed from the front, the vertical rib portion 42 and the horizontal rib portion 43 can be made shorter. As a result, it is possible to more reliably prevent foreign matter from adhering to the attachment member 4 (particularly the rib portions 42, 43), and it is possible to improve hygiene and cleanability.

In addition, the surface of the plate-shaped portion 44 has a flat surface shape, and the rib portions 42, 43 are connected to the plate-shaped portion 44 in a state of being flush with the flat surface-like surface. ing. Therefore, it is possible to more effectively prevent foreign matter from adhering to the attachment member 4, and it is possible to make it more difficult for resistance such as catching to occur during cleaning. This makes it possible to further improve hygiene and cleanability.

At the same time, since the attachment support portion 23 is covered with the plate-shaped portion 44, the attachment support portion 23 can be made invisible or difficult to see from the outside (the water storage space side of the bathtub 100). As a result, it is possible to prevent deterioration in appearance quality due to the attachment support portion 23 becoming visible from the outside. It should be noted that this effect is visually recognized from the water storage space side when the attachment support portion 23 has an uneven surface (a surface located on the water storage space side of the bathtub 100) or (when there is no plate-shaped portion 44). It is particularly effective when it is provided with possible parts (for example, female screw parts).

Further, since the plate-shaped portion 44 covers the attachment support portion 23, it is possible to prevent dirt and foreign matter from adhering to the attachment support portion 23 regardless of the shape of the attachment support portion 23. Therefore, regarding the shape design of the attachment support portion 23, the limitation from the viewpoint of preventing the adhesion of dirt and foreign matter can be reduced, and the degree of freedom regarding the shape design of the attachment support portion 23 can be further increased.

Further, at least when the drainage channel 24 is in the open state, each of the straight portions 714a in the pair of side protrusions 714 is arranged in parallel and close to the side surface of the outer hanging portion 45. Therefore, when a force that causes rotation or tilt is applied to the plug lid 7, the support shaft 52 is located at a position farther from the tip end portion (a portion that can be the rotation center or tilt center of the plug lid 7). The lateral hanging portion 45 can regulate the side protrusion 714 from tilting or moving along the rotation direction of the plug lid 7. As a result, the rotation and the inclination of the stopper lid 7 in the longitudinal direction can be suppressed very effectively. As a result, it is possible to more reliably prevent damage and deformation of the support shaft 52, the attachment member 4, and the like.

In addition, the mounting member 3 includes a reinforcing support portion 33 that supports the attachment support portion 23 from its back side (the side opposite to the water storage space). Therefore, the durability of the attachment support portion 23 can be enhanced, and damage or deformation of the attachment support portion 23 can be prevented more reliably. Further, the attachment member 4 can be installed in a more stable state.

Further, the mounting hole 103 is formed through the portion from the bottom wall portion 101 to the side wall portion 102 diagonally with respect to the vertical direction, and the extending direction of the main body portion 21 and the reciprocating movement direction of the support shaft 52 are in the vertical direction. On the other hand, it is said to be diagonal. Therefore, it is possible to suppress the amount of protrusion of the main body portion 21 or the like with respect to the bottom wall portion 101 downward. As a result, it is possible to make it more difficult for the drain plug device 1 to be damaged from the outside, and to further increase the degree of freedom in installing the drain plug device 1. Further, by applying the drain plug device 1 to a bathtub 100 of a type such as the present embodiment, which is placed on the floor of a bathroom and where a caregiver or the like may stand on the floor to provide assistance or the like. The installation height of the bottom wall portion 101 of the bathtub 100 can be suppressed with respect to the floor surface, and the convenience and safety of entering and exiting the bathtub 100 can be enhanced.

In addition, when a vertically downward load is applied to the stopper lid 7 (lid portion 711) when the drainage flow path 24 is in the open state, the guide portion 713 comes into contact with the lateral rib portion 43 and from the guide portion 713. The load is transmitted to the lateral rib portion 43. Therefore, when a vertically downward load is applied to the plug lid 7 (cover portion 711), the load can be dispersed, and the plug lid 7 (cover portion 711) and the support shaft 52 are mounted (shaft mounted portion). It is possible to more reliably prevent the load from being applied intensively to the 712), the support shaft 52, and the like. As a result, damage or deformation of the stopper lid 7, the support shaft 52, or the like can be effectively prevented.

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 drainage flow path 24 is formed by the inner space of the drainage port member 2, but when the drainage port member 2 is not provided, for example, a hole formed through the bathtub 100 (for example). The drainage flow path may be configured by a hole such as a mounting hole 103) or an inner space of a predetermined pipe.

(B) In the above embodiment, the mounting hole 103 is formed to penetrate diagonally with respect to the vertical direction, but may be formed to penetrate in the vertical direction. Further, the extending direction of the main body portion 21 and the reciprocating moving direction of the support shaft 52 and the plug lid 7 may be vertical directions, respectively.

(C) In the above embodiment, the drainage flow path 24 has an elliptical shape in front view, but the shape of the drainage flow path is not limited to this, and the drainage flow path may be, for example, a rectangular shape in front view. It may be an elliptical shape in front view, a polygonal shape in front view, or the like. Of course, the shape of the stopper lid 7 or the like may be appropriately changed according to the shape of the drainage flow path.

(D) In the above embodiment, the attachment member 4 is attached to the drainage port member 2, but the attachment target of the attachment member 4 is not limited to the drainage port member 2. Therefore, for example, the attachment member 4 may be configured to be attached to the attachment member 3.

Further, the configuration of the attachment member 4 in the above embodiment is an example, and the configuration may be appropriately changed. Therefore, for example, the holding portion 41, the vertical rib portion 42 and the lateral rib portion 43 protruding outward from the holding portion 41, and the annular portion in which the tip portions of the rib portions 42 and 43 are connected to the inner peripheral surface. You may use the attachment member which is provided with the above and is configured so that the annular portion can be attached to the inner peripheral surface of the drainage port member 2. In this case, the attachment support portion 23 and the reinforcing support portion 33 may not be provided.

(E) The configuration of the vertical rib portion 42 and the horizontal rib portion 43 in the above embodiment is an example, and the configurations of the rib portions 42 and 43 may be appropriately changed. For example, the lengths and widths (thicknesses) of the rib portions 42 and 43 may be different.

Further, in the above embodiment, the lateral rib portion 43 is provided, but the lateral rib portion 43 may not be provided.

(F) In the above embodiment, the side protruding portion 714 is composed of two protrusions, but the configuration of the side protruding portion is not limited to this. Therefore, for example, the side-side protrusion may be formed by one protrusion (for example, a plate-like protrusion) whose side surface facing the outer hanging portion 45 side has a flat surface shape. Of course, the side protrusion may be formed by three or more protrusions.

(G) In the above embodiment, the closing packing portion 72 is configured to be in a closed state when the closing packing portion 72 comes into contact with the inner surface of the drain port member 2, but the closing packing portion 72 is provided. The drainage flow path 24 may be configured to be closed by coming into contact with a portion other than the drainage port member 2 (for example, the bathtub 100). In this case, the portion that comes into contact with the closing packing portion 72 corresponds to the “contact target portion”.

(H) In the above embodiment, the bathtub 100 is installed in a state where it can be slidably moved, but it may be installed in a state where it cannot be moved. Further, the installation surface 111 may be configured to be at the same height as the washing place 112. Further, an apron may be provided so as to hide the side wall portion 102 of the bathtub 100 from the outside.

(I) In the above embodiment, the bathtub 100 is mentioned as the tank body, but the technical idea of the present invention may be applied to a tank body other than the bathtub (for example, a washbasin or a kitchen sink).

1 ... Drain plug device, 2 ... Drain port member (flow path component, contact target part), 3 ... Mounting member, 4 ... Attachment member, 5 ... Support shaft mechanism, 7 ... Plug lid, 22 ... Flange, 23 ... Attachment support part, 24 ... Drainage flow path, 33 ... Reinforcing support part, 41 ... Holding part, 42 ... Vertical rib part, 43 ... Horizontal rib part, 44 ... Plate-shaped part, 44a ... Inner edge part, 45 ... Outside Hanging part, 52 ... Support shaft, 100 ... Bath (tank body), 103 ... Mounting hole, 711 ... Lid part, 713 ... Guide part, 713b ... Center side slit, 713c ... Side side slit, 713d ... Center side parallel part, 713e ... Side parallel portion, 714 ... Side side protrusion, 714a ... Straight portion.

Claims (7)

A flow path component that is provided on the bottom side of the tank body and constitutes a drainage flow path through which the water flows when the water stored in the tank body is discharged.
A support shaft mechanism having a support shaft configured to be reciprocally movable,
It has a cylindrical holding portion that holds the support shaft mechanism on the inner circumference, and also has an attachment member installed in the drainage flow path and an attachment member.
It is attached to the support shaft and has a stopper lid for opening and closing the drainage flow path.
The drainage flow path is opened by separating the plug lid from the predetermined contact target portion due to the forward movement of the support shaft, while the plug lid is separated from the predetermined contact target portion by the return movement of the support shaft. It is a drain plug device configured so that the drainage channel is closed when it comes into contact with the drainage plug device.
When viewed from the front, the drainage channel has a horizontally long shape that is longer in the horizontal direction than in the vertical direction.
The plug lid has a horizontally long shape corresponding to the shape of the drainage channel.
The holding portion is located at the lateral center portion of the drainage channel.
The attachment member has a vertical rib portion that protrudes in the vertical direction from the outer peripheral portion of the holding portion.
The stopper lid
With a plate-shaped lid,
It has a cylindrical guide portion that protrudes from the back surface of the lid portion and is arranged on the outer periphery of the holding portion.
The guide portion extends in the reciprocating direction of the support shaft, opens on the side opposite to the lid portion, and has a center-side slit in which the vertical rib portion is arranged.
At least a part of the guide portion that forms the center side slit is provided with a center side parallel portion that extends in parallel along the reciprocating movement direction of the support shaft.
At least when the drainage flow path is in the open state, the center-side parallel portion is arranged in a state of being close to both side surfaces of the vertical rib portion while sandwiching the vertical rib portion. Plug device. The attachment member has a lateral rib portion that projects laterally from the outer peripheral portion of the holding portion.
The guide portion extends in the reciprocating movement direction of the support shaft, opens on the side opposite to the lid portion, and has a side slit on which the lateral rib portion is arranged.
At least a part of the guide portion that forms the side slit is provided with a side parallel portion that extends in parallel along the reciprocating movement direction of the support shaft.
At least when the drainage flow path is in the open state, the side parallel portion is arranged in a state of being close to both side surfaces of the lateral rib portion while sandwiching the lateral rib portion. Item 1. The drain plug device according to item 1. As the flow path component, a cylindrical drainage port member that is inserted and installed in a mounting hole formed in the tank body is provided.
The drainage port member has a pair of attachment support portions provided at positions where the holding portions are placed in between.
The attachment member is placed on the attachment support portions in a state of being bridged over the pair of attachment support portions, and is located on the side opposite to the holding portion in the vertical rib portion and the lateral rib portion. With a plate-like part that is connected to each end
The plate-shaped portion includes an inner edge portion that forms a gap in which the guide portion is arranged between the plate-shaped portion and the outer peripheral portion of the holding portion.
The drain plug device according to claim 2, wherein the entire area of the inner edge portion is formed on the holding portion side of the pair of attachment support portions. The surface of the plate-shaped portion has a flat surface shape and also has a flat surface shape.
The drain plug according to claim 3, wherein the vertical rib portion and the lateral rib portion are connected to the plate-shaped portion so as to be flush with the surface of the plate-shaped portion, respectively. Device. The drain plug device according to claim 3 or 4, wherein the attachment support portion is covered with the plate-shaped portion. The plug lid protrudes from the back surface of the lid portion, is provided at a position where the guide portion is placed in between, and is provided with a pair of side portions having a straight portion extending along the reciprocating movement direction of the support shaft. Has side protrusions,
The attachment member comprises a pair of lateral hangings that are adjacent to the side surface of the pair of attachment supports on the opposite side of the holding portion.
At least when the drainage flow path is in the open state, each of the straight portions in the pair of side-side protrusions is arranged in a state of being parallel and close to the side surface of the outer hanging portion. The drain plug device according to any one of claims 3 to 5. A mounting member is provided, which is installed with the tank body sandwiched between the flange portion formed so as to protrude from the end portion of the drainage port member.
The drain plug device according to any one of claims 3 to 6, wherein the mounting member includes a reinforcing support portion that supports the attachment support portion from the back side thereof.

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