JP2012154133A - Drain outlet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain outlet device that enables a drain outlet member to be attached in a stable state to a drain outlet and that enables the drain outlet member to be attached with ease.SOLUTION: A drain outlet device is attached to a drain outlet 104 that comprises a tubular hanging portion 104S elongated downward and a flange portion 104F swelling radially inward from a lower end of the hanging portion 104S. The drain outlet device is equipped with a drain outlet member 3 that has an outer tube portion 32 brought into contact with the flange portion 104F, and the drain outlet member 3 is provided with a locking portion 34 that is elongated to a lower side from the outer tube portion 32 and that has a leading end side equipped with a claw portion 34 N protruding to an outer peripheral side. An annular attachment member 2 is disposed in the lower portion of the flange portion 104F; the claw portion 34 N is locked to the attachment member 2; and the flange portion 104F and the attachment member 2 are brought into the state of being sandwiched between the outer tube portion 32 and the claw portion 34 N so that the drain outlet member 3 can be attached to the flange portion 104F.

Description

  The present invention relates to a drain port device provided at a drain port of a tank body.

  Conventionally, as a drainage device for a tank body (for example, a washing place of a bathtub or a unit bath), a bowl-shaped flange is used for the purpose of fixing a device for guiding the vertical movement of the stopper lid to the tank body. One having a drain port member having a drain port is known (see, for example, Patent Document 1).

  In recent years, in order to prevent deterioration of the appearance quality due to the flange appearing on the surface of the tank body, there is a method of attaching the drain port member to the bowl-shaped part formed below the drain port. It has been proposed (see, for example, Patent Document 2). According to the method, the drain port member is provided with the locking portion including the upper locking portion and the lower locking portion, and the upper locking portion is placed on the upper surface of the bowl-shaped portion. The drainage port member is attached to the drainage port by directly latching the lower locking portion with respect to the lower surface of the bowl-shaped portion and sandwiching the flange-shaped portion between the upper locking portion and the lower locking portion.

Japanese Patent No. 36333336 JP 2010-1678 A

  However, in the case of a resin bathtub or the like, the drain outlet is generally formed by performing post-processing such as cutting after the tank body is formed, so the hole diameter of the drain outlet (inner diameter of the bowl-shaped portion) is aimed. It may increase or decrease from the size of. In the technique described in Patent Document 2, if the hole diameter of the drainage port becomes smaller than the target size, it becomes difficult to insert the locking portion into the inner periphery of the flange, Installation of the drain port member becomes very difficult. On the other hand, if the hole diameter of the drain outlet is made slightly larger than the target dimension in consideration of the mounting workability, the engagement of the lower locking portion with respect to the bowl-shaped portion becomes insufficient. The drain port member may be easily detached from the drain port. In other words, in the technique described in Patent Document 2, if the hole diameter of the drain port is slightly deviated from the target dimension, the mounting stability and mounting workability of the drain port member may be reduced.

  The present invention has been made in view of the above circumstances, and the purpose of the present invention is to attach the drain port member to the drain port in a stable state even if a slight dimensional deviation occurs in the hole diameter of the drain port. Moreover, it is providing the drain port apparatus which can perform attachment of a drain port member easily.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect specific to the means to respond | corresponds as needed is added.

Means 1. A drainage port device attached to a drainage port of a tank body having a cylindrical hanging portion extending downward and a flange portion bulging radially inward from a lower end of the hanging portion,
A drain port member having an outer cylindrical portion in contact with the flange portion;
The drain port member is provided with a locking portion that includes a claw portion that extends downward from the outer cylinder portion and protrudes to the outer peripheral side at the distal end side,
An annular mounting member is arranged at the lower part of the flange,
The drain port member is attached to the flange portion by locking the hook portion to the attachment member and sandwiching the flange portion and the attachment member between the outer tube portion and the claw portion. Drainage outlet device characterized by being able to.

  According to the said means 1, the nail | claw part provided in the front-end | tip of the latching | locking part is not directly latched with respect to the collar part of a drain outlet, but the cyclic | annular attachment member arrange | positioned at the lower part of a collar part It is locked to. That is, the claw portion is locked to an attachment member having a certain hole diameter (inner diameter) instead of a flange portion that may increase or decrease the hole diameter with processing, and the claw portion is indirectly connected via the attachment member. It is comprised so that it may be latched by a collar part. Therefore, even if the hole diameter of the drain port is slightly larger than the target dimension, the engagement cost of the claw portion can be sufficiently ensured as compared with the case where the claw portion is directly locked to the collar portion. . As a result, the drain port member can be attached to the drain port in a stable state.

  In addition, it is possible to give a slight margin to the hole diameter of the drain port without impairing the mounting stability of the drain port member. Further, since the hole diameter of the mounting member is constant, the locking portion is attached to the mounting member. It can be inserted without difficulty. Therefore, the drain port member can be easily attached to the drain port.

  In addition, while forming a male screw in the outer periphery of a latching | locking part, forming a female screw in the inner periphery of a mounting member, and screwing a latching | locking part to a mounting member, the method of attaching a drain outlet member with respect to a drain outlet ( For example, Japanese Patent No. 3633336 is also conceivable. However, in this method, it takes much time to attach (screw) the drain port member to the mounting member. On the other hand, according to the means 1, the drain port member is attached only by locking the claw portion to the attachment member. Therefore, the drain port member can be attached to the drain port with one touch, and the mounting workability can be greatly improved.

Mean 2. The attachment member is provided with a hook portion that extends upward and includes a flange portion that protrudes to the outer peripheral side on the tip side.
The drain port device according to claim 1, wherein the attachment member is disposed below the collar part in a state where the collar part is locked to the collar part.

  According to the above means 2, the attachment member can be attached to the flange (drainage port) in a more stable state, and as a result, the drainage port member locked to the attachment member is more stable to the drainage port. Can be installed at. In addition, the attachment member can be attached to the collar portion with a single touch, and a further excellent attachment workability can be realized.

  Means 3. The drain port device according to claim 2, wherein the outer cylinder portion includes a regulating portion that regulates relative movement of the hooking portion with respect to the tank body toward the inner peripheral side.

  According to the said means 3, it can prevent effectively that a hook part remove | deviates from a collar part by a control part. Therefore, the mounting stability of the mounting member with respect to the drain port can be further improved.

Means 4. The outer cylinder portion includes a recess into which the hook portion can be inserted,
The drain port device according to claim 3, wherein the restricting portion is constituted by an inner wall portion formed on an inner peripheral side of the concave portion.

  According to the means 4, the relative movement of the hook portion can be restricted by forming the concave portion in the outer cylinder portion and inserting the hook portion into the concave portion. Therefore, it is not necessary to provide a separate restricting portion, and the manufacturing cost can be reduced. Further, by inserting the hook portion into the recess, the hook portion is covered with the outer cylinder portion, and the hook portion is difficult to visually recognize from the outside. Thereby, the appearance quality can be improved.

Means 5. The locking portion has a connecting portion located between the outer tube portion and the claw portion, and the claw portion has an inclined portion inclined toward the connecting portion side,
The drainage device according to any one of means 1 to 4, wherein the inclined portion is locked to the mounting member.

  According to the means 5, the inclined portion is formed in the claw portion, and the inclined portion is locked to the attachment member. Therefore, for example, when it becomes necessary to remove the drain port member from the drain port due to breakage of the drain port member or the like, the drain port member can be easily removed.

  In addition, in the case where the inclined portion is directly locked to the flange portion without providing an attachment member, if the hole diameter of the drain port is slightly larger than the target dimension, the inclined portion is There is a possibility that the drain outlet member may move up and down without being sufficiently contacted. On the other hand, if an attachment member having a constant hole diameter is provided as in the above-described means 1 or the like, the inclined portion can be more reliably brought into contact with the attachment member, and the vertical movement of the drain port member can be further increased. It can be surely prevented. In other words, providing the mounting member eliminates the demerit (up-and-down movement of the drain port member) that can be caused by providing the inclined portion while maintaining the advantage (improving ease of removal) by providing the inclined portion. It is also significant in terms.

  Means 6. The drain port device according to any one of means 1 to 5, wherein the attachment member is provided in a drain pipe connected to the drain port.

  According to the means 6, since the attachment member which is a part of the drain pipe is sandwiched between the outer cylinder part and the claw part, the drain pipe can be stably connected to the drain port.

  In addition, although the drain pipe is generally connected to the drain port by screwing, if the above means 2 is adopted and the hooking portion is provided on the mounting member, the hook portion is locked to the collar portion, The pipe can be connected to the drain with one touch. As a result, it is possible to dramatically improve the mounting workability when providing the drain pipe.

Mean 7 The attachment member is provided with a hook portion that extends upward and includes a flange portion that protrudes to the outer peripheral side on the tip side.
In the state where the collar part is locked to the collar part, the attachment member is disposed at a lower part of the collar part,
The drain pipe includes a cylindrical drain pipe body to which the mounting member is attached,
The attachment member is attached to the drain pipe main body in a state where the male screw part provided on the outer peripheral surface of the attachment member is screwed to the female screw part provided on the inner peripheral surface of the drain pipe main body,
An annular seal member is provided between the end of the drain pipe main body and the flange portion,
By changing the screwing amount of the mounting member to the drain pipe main body, the distance between the end of the drain pipe main body and the flange with the seal member interposed therebetween can be changed. The drainage device according to claim 6.

  According to the means 7, the amount of screwing of the attachment member to the drain pipe main body is changed, and the end portion of the drain pipe main body is brought close to the flange portion, so that the pressing force is applied to the seal member. It is possible to seal between the flange and the drain pipe main body. Therefore, the space between the collar portion and the drain pipe main body can be sealed in a stable state, and the water tightness can be improved.

  Furthermore, according to the means 7, a sufficiently large pressing force can be applied to the seal member without using a special jig or the like, and an excellent sealing property can be easily realized.

  Means 8. The drain port device according to claim 7, further comprising loosening prevention means for preventing loosening of the attachment member with respect to the drain pipe main body.

  According to the means 8, the loosening prevention means can prevent the attachment member from loosening with respect to the drain pipe main body, and can effectively suppress the pressing force applied to the seal member from decreasing. Therefore, it is possible to seal between the drain pipe main body and the collar portion in a stable state over a longer period.

  In addition, as the “loosening prevention means”, for example, provided on the external thread portion of the attachment member or the internal thread portion of the drain pipe main body, the attachment member rotates by being deformed when the attachment member is screwed to the drain pipe main body. The protrusion to regulate can be mentioned. Further, when the seal member is arranged on the outer periphery of the mounting member as in the means 9 described below, the outer peripheral surface of the mounting member and the inner peripheral surface of the seal member are formed in a sawtooth shape in cross section, By making the rotational resistance of the mounting member with respect to the sealing member when the mounting member is screwed out larger than the rotational resistance of the mounting member with respect to the sealing member when screwing the mounting member with respect to the drain pipe main body, Means "can also be realized.

Means 9. The seal member is disposed on the outer periphery of the mounting member,
The loosening prevention means is provided in at least one of the attachment member and the seal member, and the rotational resistance of the attachment member with respect to the seal member when the attachment member is screwed out from the drain pipe main body. The drain port device according to claim 8, wherein the drain port device has a rotational resistance greater than that of the attachment member with respect to the seal member when the attachment member is screwed relative to the drain pipe main body.

  According to the means 9, the attachment member can be easily screwed to the drain pipe body with a relatively small force, and loosening of the attachment member from the drain pipe body can be more reliably prevented. Therefore, it is possible to maintain a stable sealing performance for a long time while improving the mounting workability.

  Means 10. The drain outlet device according to any one of means 1 to 9, wherein an annular packing made of an elastic material is provided between the flange portion and the mounting member.

  According to the said means 10, the watertightness between an attachment member and a tank body (ridge part) can be improved. Further, even if there is some variation in the thickness of the flange portion, rattling along the vertical direction of the mounting member and thus the drain port member can be more reliably suppressed by the elasticity of the packing.

  Means 11. The drainage device according to any one of means 1 to 10, wherein the attachment member includes an elastic portion that is elastically deformable on a surface disposed on the flange side.

  According to the above-mentioned means 11, even if there is some variation in the thickness of the collar portion, the elastic member is elastically deformed so that the attachment member is attached to the collar portion in a stable state with little backlash. be able to. As a result, the vertical movement of the drain port member that is locked to the mounting member can be more reliably suppressed.

Means 12. A stopper lid provided at the drain;
A support shaft that supports the stopper lid and is movable up and down relative to the tank body,
The drain port member has an inner cylinder part through which the support shaft is inserted, on the inner peripheral side of the outer cylinder part,
The outer cylinder portion is disposed below the stopper lid,
The drain port device according to any one of means 1 to 11, wherein an outer peripheral edge of the stopper lid contacts the tank body when the stopper lid is closed.

  According to the means 12, since the drain port member is hidden by the plug lid, the drain port member can be hardly visible from the outside. As a result, the appearance quality can be further improved.

It is a perspective view which shows a bathtub etc. It is a partial expanded sectional view which shows structures, such as a drain outlet apparatus. It is the elements on larger scale which show the drain port member etc. which were provided in the drain port. (A) is the JJ sectional view taken on the line of FIG. 3, (b) is the KK sectional view taken on the line of FIG. It is a perspective view for demonstrating the attachment method of a drain port apparatus. (A), (b) is the elements on larger scale showing the drain outlet device in another embodiment. It is a disassembled perspective view which shows the drain port apparatus in another embodiment. (A), (b) is the elements on larger scale showing the drain outlet device in another embodiment. It is a partially broken perspective view which shows the drain port apparatus in another embodiment. It is a disassembled perspective view which shows the drain port apparatus in another embodiment. (A), (b) is the elements on larger scale showing the drain outlet device in another embodiment.

  Hereinafter, an embodiment will be described with reference to the drawings. In this embodiment, the drain port apparatus 1 is provided with the attachment member 2, the drain port member 3, the support shaft 4, etc., as shown in FIG. 2, and is attached to the bathtub 100 as a tank body. First, prior to the description of the drain port device 1, the structure of the bathtub 100 to which it is attached will be described.

  As shown in FIG. 1, the bathtub 100 is a bottom wall portion 101, a cylindrical side wall portion 102 that extends upward from the bottom wall portion 101, and an outer side from the upper end of the side wall portion 102. And a flange portion 103 extending toward the top.

  3 and FIGS. 4A and 4B [FIG. 4A is a cross-sectional view taken along the line JJ of FIG. 3, and FIG. 4B is a cross-sectional view taken along the line KK of FIG. As shown in FIG. 2, a drain wall 104 for discharging water in the bathtub 100 is formed in the bottom wall portion 101 of the bathtub 100. The drain port 104 is provided with a reduced diameter portion 104T having a reduced diameter on the entire circumference of the upper end portion thereof and having a curved outer shape in cross section. Further, the reduced diameter portion 104T of the drain port 104 is provided. A hanging part 104S that extends downward and has substantially the same inner diameter, and a flange part 104F that bulges radially inward from the lower end of the hanging part 104S are formed. In the present embodiment, when the bathtub 100 is formed, the drain port 104 has a bottomed cylindrical shape, and has the shape described above by post-processing. Specifically, the drainage port 104 is formed by cutting a bottom surface portion of a cup-shaped portion (bottomed tubular portion) that protrudes toward the back surface of the bottom wall portion 101 into an annular shape by cutting or the like. It is like that.

  Next, the configuration of the drain port device 1 will be described. As shown in FIG. 2, the drain port device 1 includes a mounting member 2, a drain port member 3, a support shaft 4, a plug lid 5, and an operation device 6.

  As shown in FIGS. 4A and 4B, the attachment member 2 is formed of a predetermined resin having a ring shape (for example, POM or the like). It arrange | positions so that the lower surface of the part 104F may be contacted. In addition, the attachment member 2 is provided with a plurality of hook portions 21 (four in the present embodiment) at equal intervals along the circumferential direction, and extending toward the upper side. A flange portion 22 that protrudes radially outward is provided. And the attachment member 2 is attached with respect to the collar part 104F because the said collar part 22 is latched by the upper surface of the said collar part 104F. The attachment member 2 is obtained by molding using a mold apparatus (not shown), and the hole diameter is always constant. In the present embodiment, a drain trap (not shown) is disposed below the attachment member 2, and drainage is performed through a drain pipe (not shown) connected to the drain trap. .

  The drain port member 3 is formed of a predetermined resin (for example, POM or the like) as shown in FIG. 3 (in FIG. 3, the stopper lid 5 is not shown) and FIGS. 4 (a) and 4 (b). Each includes an inner tube portion 31 and an outer tube portion 32 each having a cylindrical shape, an arm portion 33 that couples both, and a locking portion 34 that extends downward from the outer tube portion 32.

  The inner cylinder part 31 is provided on the inner peripheral side of the outer cylinder part 32, and the support shaft 4 is inserted into the inner cylinder part 31. Further, the inner cylinder portion 31 is configured such that the central axis thereof coincides with the central axis of the outer cylindrical portion 32, and as a result, the respective central axes of the support shaft 4 and the plug lid 5 supported by the support shaft 4 are It is comprised so that it may correspond with the central axis of the outer cylinder part 32. FIG. In addition, the arm portion 33 extends radially inward from the inner periphery of the outer cylinder portion 32, and a plurality (four in this embodiment) are provided at equal intervals along the circumferential direction.

  The outer cylinder part 32 is arrange | positioned in the state in which the lower surface of itself was mounted on the collar part 104F. In addition, a plurality of (four in this embodiment) concave portions 32H are provided at equal intervals along the circumferential direction on the lower surface of the outer cylindrical portion 32, and the front end side of the hooking portion 21 is located with respect to the concave portion 32H. Has been inserted. As a result, relative movement of the hook portion 21 relative to the bathtub 100 toward the inner peripheral side is restricted by the inner wall portion 32I formed on the inner peripheral side of the recess 32H in the outer cylindrical portion 32.

  Further, a plurality (four in this embodiment) of the locking portions 34 are provided at equal intervals along the circumferential direction, and are provided with claw portions 34N provided on the front end side of the locking portions 34 and protruding toward the outer peripheral side, A connecting portion 34C is provided between the tube portion 32 and the claw portion 34N. And the nail | claw part 34N is latched to the lower surface of the attachment member 2, and the drain port member 3 is made into the collar part 104F by pinching the collar part 104F and the attachment member 2 with the outer cylinder part 32 and the claw part 34N. Installed.

  In the present embodiment, the claw portion 34N is provided with an inclined portion 34T that is inclined toward the connecting portion 34C, and the inclined portion 34T is locked to the lower surface of the mounting member 2. In addition, the connecting portion 34C is formed to be relatively thin, and as a result, the locking portion 34 can be bent and deformed relatively easily toward the radially inner side.

  The support shaft 4 has a rod shape, and a distal end portion of the support shaft 4 is fitted in a cylindrical portion formed at the center of the back surface of the stopper lid 5, while a base end portion of the support shaft 4 is a release wire (to be described later) of the operating device 6. The other end of 62 is connected. The support shaft 4 is inserted into the inner cylinder portion 31 of the drain port member 3 and supported by the inner cylinder portion 31 in a state in which the support shaft 4 can move up and down relatively with respect to the bathtub 100. In the present embodiment, the thrust lock mechanism is configured by combining the support shaft 4, the inner cylinder portion 31 (drainage port member 3), and components (not shown) such as a spring and a gear.

  The plug lid 5 is located above the outer cylinder portion 32, and has a lid portion 51 made of resin such as POM and an annular seal made of an elastically deformable material (for example, resin or rubber such as EPDM rubber). Part 52.

  The lid portion 51 includes an umbrella-shaped portion 51A whose surface is gently curved, and a cylindrical protruding portion 51B extending downward from the back inner side of the umbrella-shaped portion 51A. An annular groove 51C into which the seal portion 52 is fitted is provided on the outer peripheral surface of 51B.

  In addition, the seal portion 52 is configured to become gradually thinner toward the outer peripheral side, and when the stopper lid 5 is closed, the entire outer periphery of the seal portion 52 is smaller than the reduced diameter portion 104T of the drain port 104. It comes to contact. In the present embodiment, the outer diameter of the seal portion 52 is made smaller than the outer diameter of the lid portion 51 (umbrella-shaped portion 51A), and the groove portion 51C to which the seal portion 52 is attached is formed on the umbrella-shaped portion 51A. It is provided directly below. Therefore, the seal portion 52 is hidden by the lid portion 51 and is difficult to visually recognize from the outside.

  Returning to FIG. 2, the operation device 6 includes an operation unit 61 attached to the flange portion 103 of the bathtub 100 and a release wire 62 having one end connected to the operation unit 61.

  The operation unit 61 is a push button type, and opens and closes the drain port 104 by operating the plug lid 5 by remote control. Further, the release wire 62 transmits the movement of the operation unit 61 to the support shaft 4. In the present embodiment, the operation unit 61 is operated to alternately lock the support shaft 4 at the rising end via the release wire 62 and to lower the support shaft 4 when the lock is released. The lid lid 5 is alternately raised and lowered (opening / closing the drain port 104) every time it is operated.

  Subsequently, the arrangement | positioning procedure with respect to the bathtub 100 of the drain port apparatus 1 mentioned above is demonstrated.

  First, the drain port 104 is formed by excising the bottom wall portion of the cup-shaped portion formed in advance in the bathtub 100. Next, the hook portion 21 of the attachment member 2 is inserted into the drainage port 104 from the back side of the bathtub 100, and the hook portion 22 is locked to the hook portion 104F of the drainage port 104, so that it is attached to the lower portion of the hook portion 104F. Install the member 2.

  Next, as shown in FIG. 5, the other end of the release wire 62 is connected to the end of the support shaft 4 assembled to the drain port member 3. Then, the engaging portion 34 of the drain port member 3 is inserted into the inner periphery of the flange portion 104F while aligning the position of the recessed portion 32H formed in the outer cylindrical portion 32 and the hooking portion 21 of the mounting member 2, thereby hooking. The distal end side of the portion 21 is inserted into the recess 32H, and the claw portion 34N is locked to the lower surface of the mounting member 2. Accordingly, the flange portion 104F and the attachment member 2 are sandwiched by the outer cylinder portion 32 and the claw portion 34N, and the drain port member 3 is attached to the flange portion 104F. Finally, the stopper cover 5 is attached to the distal end portion of the support shaft 4, whereby the arrangement of the drain port device 1 with respect to the bathtub 100 is completed.

  As described above in detail, according to the present embodiment, the claw 34N is not attached to the attachment member 2 having a constant hole diameter (inner diameter), instead of the flange 104F that may increase or decrease the hole diameter in post-processing. Is locked. Therefore, even when the hole diameter of the drain port 104 (the inner diameter of the flange 104F) is slightly larger than the target dimension, the engagement allowance of the claw 34N can be sufficiently secured. As a result, the drain port member 3 can be attached to the drain port 104 in a stable state.

  Further, the hole diameter of the drain port 104 can be given a slight margin without impairing the mounting stability of the drain port member 3, and the hole diameter of the mounting member 2 is constant. The locking portion 34 can be inserted without difficulty. Therefore, the drain port member 3 can be easily attached to the drain port 104.

  Furthermore, when attaching the drain port member 3, it is only necessary to lock the claw portion 34 </ b> N to the mounting member 2, and the drain port member 3 can be attached to the drain port 104 with one touch. As a result, the mounting workability can be greatly improved.

  In addition, the attachment member 2 is provided with a hook portion 21, and a flange portion 22 provided at the tip of the hook portion 21 is locked to the flange portion 104 </ b> F. Therefore, the attachment member 2 can be attached to the flange 104F (drain port 104) in a more stable state, and as a result, the drain port member 3 can be attached to the drain port 104 in a more stable state. In addition, the attachment member 2 can be attached to the flange portion 104F with a single touch, and a further excellent attachment workability can be realized.

  In addition, a concave portion 32H is formed in the outer cylinder portion 32, and the relative movement of the hook portion 21 with respect to the bathtub 100 is restricted by inserting the hook portion 21 into the concave portion 32H. Therefore, it can prevent effectively that the hook part 21 remove | deviates from the collar part 104F, and the attachment stability of the attachment member 2 with respect to the drain port 104 can be improved further. Further, by inserting the hook portion 21 into the concave portion 32H, the hook portion 21 is covered with the outer cylinder portion 32, and the hook portion 21 is difficult to visually recognize from the outside. Thereby, the appearance quality can be improved.

  In addition, an inclined portion 34T is formed in the claw portion 34N, and the inclined portion 34T is locked to the attachment member 2. Therefore, when it becomes necessary to remove the drain port member 3 from the drain port 104, the drain port member 3 can be easily removed.

  Note that if the inclined portion 34T is directly locked to the flange portion 104F, the inclined portion 34T sufficiently contacts the flange portion 104F when the inner diameter of the flange portion 104F increases from the target dimension. However, in this embodiment, the inclined portion 34T is locked to the mounting member 2 having a constant hole diameter. Therefore, the inclined portion 34T comes into contact with the mounting member 2 more reliably, and as a result, the vertical movement of the drain port member 3 can be more reliably prevented.

  In addition, in this embodiment, the outer cylinder part 32 is arrange | positioned under the stopper lid 5, and when the stopper lid 5 is closed, the outer periphery of the stopper lid 5 contacts the bathtub 100. ing. Accordingly, the drain port member 3 is hidden by the plug lid 5, and the drain port member 3 can be made difficult to visually recognize from the outside. As a result, the appearance quality can be further improved.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the above embodiment, the attachment member 2 is in direct contact with the flange portion 104F. However, as shown in FIGS. 6 (a) and 6 (b), the attachment member 2 is interposed between the flange portion 104F and the attachment member 2. Alternatively, an annular packing 7 made of an elastic material such as EPDM rubber may be provided. In this case, the watertightness between the attachment member 2 and the bathtub 100 can be improved. Further, even if there is some variation in the thickness of the flange portion 104F, rattling along the vertical direction of the mounting member 2 and thus the drain port member 3 can be more reliably suppressed by the elasticity of the packing 7. .

  Moreover, in the said embodiment, although the release wire 62 is connected with the support shaft 4 assembled | attached to the drain port member 3, the cylindrical member which hold | maintains the support shaft 81 to which the release wire 62 was connected in inner periphery. 82 may be inserted through the inner cylinder portion 31 of the drain port member 3.

  Furthermore, as shown in FIG. 7, the attachment member 112 may be integrally provided with an elastically deformable elastic portion 112 </ b> P that protrudes toward the flange portion 104 </ b> F on a surface disposed on the flange portion 104 </ b> F side. In this case, even if there is some variation in the thickness of the flange portion 104F, the elastic portion 112P is elastically deformed, so that the attachment member 112 can be kept in a stable state with little backlash along the vertical direction. Can be installed on. As a result, the vertical movement of the drain port member 3 locked to the mounting member 112 can be more reliably suppressed.

  (B) In the above embodiment, a drain trap (not shown) is provided between the mounting member 2 and a drain pipe (not shown), and the drain pipe is directly connected to the drain port 104. Although not done, a drain pipe may be directly connected to the drain port 104. In this case, as shown in FIGS. 8A and 8B, an annular mounting member 106 is integrally provided at one end of the drain pipe 105, and the outer cylinder portion 32 and the claw portion of the drain port member 3 are provided. The drain pipe 105 may be connected to the drain port 104 by sandwiching the attachment member 106 and the flange portion 104F with 34N. With such a configuration, the attachment member 106 which is a part of the drain pipe 105 is sandwiched between the outer cylinder portion 32 and the claw portion 34N, so that the drain pipe 105 is in a stable state with respect to the drain port 104. Can be connected with. Further, the drainage pipe 105 can be connected to the drainage port 104 with a single touch by locking the collar 108 provided on the hook 107 of the attachment member 106 to the collar 104F. As a result, it is possible to dramatically improve the mounting workability.

  Further, as shown in FIG. 9, the drainage pipe 115 includes an attachment member 116 and a cylindrical drainage pipe main body 117, and a male screw portion 116 </ b> M provided on the outer peripheral surface of the attachment member 116 is provided inside the drainage pipe main body 117. It is good also as comprising so that the attachment member 116 may be attached to the drain pipe main body 117 in the state screwed by the internal thread part 117F provided in the surrounding surface. Further, an annular seal member 118 (for example, an elastic material such as rubber or an adhesive material) is provided between the end of the drain pipe main body 117 and the flange 104F, and the screwing amount of the mounting member 116 to the drain pipe main body 117 is provided. By changing the distance, the distance between the end of the drain pipe main body 117 with the seal member 118 interposed therebetween and the flange 104F may be changeable. In this case, a sufficiently large pressing force can be applied to the seal member 118 without using a special jig or the like, and an excellent sealing property between the flange 104F and the drain pipe main body 117 can be easily obtained. Can be realized.

  Further, as shown in FIG. 10, the outer peripheral surface of the mounting member 116 and the inner peripheral surface of the seal member 118 are each formed in a sawtooth shape in cross section, so that the mounting member 116 and the seal member 118 can be prevented from loosening the ratchet structure. Means 116A and 118A are provided, and the loosening prevention means 116A and 118A attaches the rotational resistance of the attachment member 116 to the seal member 118 when the attachment member 116 is screwed from the drain pipe main body 117 to the drain pipe main body 117. You may comprise so that it may become larger than the rotational resistance of the attachment member 116 with respect to the sealing member 118 at the time of making the member 116 screw. In this case, the attachment member 116 can be easily screwed into the drain pipe main body 117 with a relatively small force, and the loosening of the attachment member 116 from the drain pipe main body 117 can be more reliably prevented. it can. Therefore, it is possible to maintain a stable sealing performance for a long time while improving the mounting workability.

  In the above-described loosening prevention means, in the cross-section along the radial direction of the mounting member 116 or the sealing member 118, the slope of the slope located on the rotational direction side when the mounting member 116 is screwed is moderate in the mountain portion. (For example, an acute angle of 50 ° or more of the angle formed by the straight line drawn from the central axis of the mounting member 116 or the like to the top of the mountain portion and the inclined surface). A slope with a steep slope located on the rotational direction side when screwing (for example, an acute angle among angles formed by a straight line drawn from the central axis of the mounting member 116 or the like to the top of the mountain portion and the slope) Is 30 ° or less).

  Further, as a means for preventing looseness, a protrusion protruding radially outward from the male threaded portion 116M of the mounting member 116 and a recess provided in the female threaded portion 117F of the drain pipe main body 117 are provided. It is good also as preventing the attachment member 116 from loosening by making a protrusion insert in a recessed part. Further, the attachment member 116 may be prevented from loosening by applying an adhesive between the male screw portion 116M and the female screw portion 117F.

  (C) In the said embodiment, although the bathtub 100 is illustrated as a tank body, the tank body which can apply the technical idea of this invention is not limited to a bathtub. Therefore, for example, the technical idea of the present invention may be applied to a drain of a bathroom of a unit bath, a drain of a vanity, a drain of a sink, and the like.

  (D) Although the drain port apparatus 1 in the said embodiment is provided with apparatuses for opening and closing the drain port 104, such as the plug lid 5 and the operation apparatus 6, it is good also as not providing the said apparatus. That is, the drain port apparatus 1 should just be provided with the attachment member 2 and the drain port member 3 at least.

  (E) In the above embodiment, when the stopper lid 5 is closed, the outer peripheral edge of the stopper lid 5 (seal portion 52) is configured to come into contact with the reduced diameter portion 104T of the drain port 104, but FIG. As shown to a) and (b), you may comprise so that the outer periphery of the stopper lid 5 (seal part 52) may contact the outer cylinder part 92 of the attachment member 9 when the stopper lid 5 is closed. In this case, in order to improve the sealing performance between the outer peripheral edge of the stopper lid 5 and the mounting member 9, the inner diameter of the outer cylindrical portion 92 is tapered toward the lower side so that the inner diameter is reduced. It is preferable that the outer peripheral edge of the plug lid 5 is in contact with the tapered portion.

  (F) In the above embodiment, the mounting member 2 and the drain port member 3 are formed of a resin material, but the mounting member 2 and the drain port member 3 are formed of a metal material having excellent corrosion resistance (for example, stainless steel). It is good to do.

  (G) In the above embodiment, the reduced diameter portion 104T of the drain port 104 has a curved outer shape in its cross section, but the outer diameter line of the reduced diameter portion 104T may be linear. It is good (that is, the reduced diameter portion 104T may be tapered).

  DESCRIPTION OF SYMBOLS 1 ... Drain port apparatus, 2,106,112,116 ... Mounting member, 3 ... Drain port member, 4 ... Support shaft, 5 ... Plug cover, 7 ... Packing, 21, 107 ... Hook, 22, 108 ... Gutter 31 ... Inner cylinder part, 32 ... Outer cylinder part, 32H ... Recessed part, 32I ... Inner wall part, 34 ... Locking part, 34C ... Connecting part, 34N ... Claw part, 34T ... Inclined part, 100 ... Bathtub (tank) , 104 ... Drain port, 104F ... collar, 104S ... drooping part, 105, 115 ... drain pipe, 112P ... elastic part, 116A, 117A ... loosening prevention means, 116M ... male screw part, 117 ... drain pipe main body, 117F ... female screw Part, 118... Sealing member.

Claims (12)

A drainage port device attached to a drainage port of a tank body having a cylindrical hanging portion extending downward and a flange portion bulging radially inward from a lower end of the hanging portion,
A drain port member having an outer cylindrical portion in contact with the flange portion;
The drain port member is provided with a locking portion that includes a claw portion that extends downward from the outer cylinder portion and protrudes to the outer peripheral side at the distal end side,
An annular mounting member is arranged at the lower part of the flange,
The drain port member is attached to the flange portion by locking the hook portion to the attachment member and sandwiching the flange portion and the attachment member between the outer tube portion and the claw portion. Drainage outlet device characterized by being able to. The attachment member is provided with a hook portion that extends upward and includes a flange portion that protrudes to the outer peripheral side on the tip side.
2. The drain port device according to claim 1, wherein the attachment member is disposed at a lower portion of the flange portion in a state where the flange portion is locked to the flange portion.   The drain port device according to claim 2, wherein the outer cylinder portion includes a restriction portion that restricts relative movement of the hooking portion with respect to the tank body toward the inner peripheral side. The outer cylinder portion includes a recess into which the hook portion can be inserted,
The drain port device according to claim 3, wherein the restricting portion is configured by an inner wall portion formed on an inner peripheral side of the concave portion. The locking portion has a connecting portion located between the outer tube portion and the claw portion, and the claw portion has an inclined portion inclined toward the connecting portion side,
The drain port device according to any one of claims 1 to 4, wherein the inclined portion is locked to the mounting member.   The drain port device according to any one of claims 1 to 5, wherein the attachment member is provided in a drain pipe connected to the drain port. The attachment member is provided with a hook portion that extends upward and includes a flange portion that protrudes to the outer peripheral side on the tip side.
In the state where the collar part is locked to the collar part, the attachment member is disposed at a lower part of the collar part,
The drain pipe includes a cylindrical drain pipe body to which the mounting member is attached,
The attachment member is attached to the drain pipe main body in a state where the male screw part provided on the outer peripheral surface of the attachment member is screwed to the female screw part provided on the inner peripheral surface of the drain pipe main body,
An annular seal member is provided between the end of the drain pipe main body and the flange portion,
By changing the screwing amount of the mounting member to the drain pipe main body, the distance between the end of the drain pipe main body and the flange with the seal member interposed therebetween can be changed. The drain apparatus of Claim 6 to do.   The drain port device according to claim 7, further comprising a loosening prevention means for preventing the attachment member from loosening with respect to the drain pipe main body. The seal member is disposed on the outer periphery of the mounting member,
The loosening prevention means is provided in at least one of the attachment member and the seal member, and the rotational resistance of the attachment member with respect to the seal member when the attachment member is screwed out from the drain pipe main body. The drain port device according to claim 8, wherein the drain port device has a rotational resistance greater than that of the attachment member with respect to the seal member when the attachment member is screwed relative to the drain pipe body.   The drain port device according to any one of claims 1 to 9, wherein an annular packing made of an elastic material is provided between the flange portion and the mounting member.   The drain port device according to any one of claims 1 to 10, wherein the attachment member includes an elastic portion that is elastically deformable on a surface disposed on the flange side. A stopper lid provided at the drain;
A support shaft that supports the stopper lid and is movable up and down relative to the tank body,
The drain port member has an inner cylinder part through which the support shaft is inserted, on the inner peripheral side of the outer cylinder part,
The outer cylinder portion is disposed below the stopper lid,
The drain port device according to any one of claims 1 to 11, wherein an outer peripheral edge of the stopper lid contacts the tank body when the stopper lid is closed.

Images