JP5968207B2 - Bathtub drain plug device - Google Patents

Description

  An aspect of the present invention relates to a drain plug device for a bathtub, and more specifically, to a drain plug device for a bathtub that opens and closes the drain plug of the bathtub by remote control.

  Remotely-operated drain plugs are mainly used to transmit force from the operation unit to the drain plugs using a release wire. Patent Document 1 proposes a structure in which a release wire is connected between an operation unit and a drain plug, and the release wire is covered with a protective tube so that the release wire is not damaged. This protective tube covers the release wire from the drain pipe near the drain plug to the operation section.

  Here, when installing the operation part of a drain plug in the overflow surface (upper surface of a flange) of a bathtub, there is no problem in the structure which connects a protection tube from a drain pipe to an operation part. On the other hand, when the operation unit is installed at a position lower than the overflow surface of the bathtub (for example, on the outer surface of the bathtub or on the bathroom counter), if the protective tube is connected to the operation unit, it flows backward from the drain pipe when draining the bathtub. Water may flow out of the operation section through the protective tube, and a water stop treatment is necessary.

JP 2010-156180 A

  This invention is made | formed based on recognition of this subject, and it aims at providing the drain plug apparatus of the bathtub which does not leak from the edge part by the side of the operation part of a protection tube.

  According to a first aspect of the present invention, there is provided a drain plug that opens and closes a drain outlet of a bathtub, an operation unit that is disposed at a position lower than an overflow surface of the bathtub, and that remotely operates the operation of the operation unit. A release wire that is transmitted to the drain plug, a protection tube that is connected to a drain pipe connected to a lower portion of the drain port and incorporates the release wire, and an end portion of the protection tube opposite to the drain pipe, A fixing member attached to a fixing portion provided behind an apron that covers the outer side surface of the bathtub, and the fixing member has one end connected to the protective tube and the other end disposed on the back side of the fixing portion. A first member provided with a communication hole through which the release wire is inserted from the one end to the other end, and disposed on the front surface side of the fixing portion, and the first member is attached by fastening with the first member. Mounting on fixed part A drain plug device for a bathtub, comprising: a second member; and a water stop member that is attached to the communication hole of the first member and fills a gap between the release wire and the first member. .

  According to the drain plug device of this bathtub, it is possible to prevent water flowing backward from the protective tube from being discharged from the operation portion. Moreover, since the water is stopped by the first member disposed on the side closer to the drain pipe than the fixed part, the number of water stop points may be reduced as compared with the case where the water is stopped by the second member. The water stop treatment can be performed with the minimum required water stop member.

  Moreover, 2nd invention is the drain plug apparatus of the bathtub characterized by the said water stop member having a flange part close | similar to the internal diameter part of said 2nd member in 1st invention.

  According to the drain plug device of this bathtub, the flange portion can contact the inner diameter portion of the second member, so that the water stop member can be prevented from wobbling, and the water stop member can be prevented from coming off.

  According to a third invention, in the first or second invention, the second member includes a screwing operation protrusion provided on a surface opposite to the first member, and the screwing operation protrusion. And a protrusion having a height lower than that of the protrusion for screwing operation and having an inclined surface opposite to the protrusion for screwing operation. This is a drain plug device for a bathtub.

  According to the drain plug device of this bathtub, since the protrusion is provided in the vicinity of the protrusion for screwing operation, the tool is not accidentally caught by the protrusion for screwing operation, and the second member is securely attached to the operator. The first member can be fastened by screwing by hand.

  Moreover, 4th invention is a 1st-3rd invention, WHEREIN: The said water stop member is a cylindrical body inserted in the said 1st member side from the said 2nd member side, The said water stop An insertion hole into which the release wire is slidably inserted is provided at the center of the member, and a portion of the inner surface of the insertion hole where the water stop member is inserted into the communication hole of the first member In addition, a drain plug device for a bathtub is characterized in that a water stopping ridge that stops water contact with the outer periphery of the release wire is formed.

  According to the drain plug device of this bathtub, the water stop performance between the inner surface of the insertion hole and the release wire can be improved by the water stopping protrusion provided on the inner surface of the insertion hole. Further, the water stop member easily slides with respect to the release wire, and the drain plug device can be easily assembled.

  Further, the fifth invention is characterized in that, in the fourth invention, a ridge is formed on the outer periphery of the water-stopping member at the same position as the water-stop ridge in the axial direction of the water-stopping member. This is a drain plug device for a bathtub.

  According to the drain plug device of this bathtub, the water stop performance between the water stop member and the first member can be improved by the protrusion provided on the outer periphery of the water stop member. Moreover, it is easy to insert the water stop member into the first member, and the drain plug device can be easily assembled.

  Moreover, 6th invention is further equipped with the sliding suppression tool which suppresses that the said release wire slides with respect to the said water stop member in any one invention of 1st-5th, The said sliding The suppressor is a drain plug device for a bathtub, which is attached to the water stop member or the release wire.

  According to the drain plug device of this bathtub, since the release wire is prevented from being pulled out from the water stop member during maintenance or the like, the release wire on the drain plug side is prevented from being bent and damaged more than necessary. Will be able to.

  According to the aspect of the present invention, there is provided a remote-operated drain plug device, which is a bathtub drain plug device that does not leak from the end of the protective tube on the operation section side.

It is typical sectional drawing which illustrates the drain plug apparatus of the bathtub concerning embodiment of this invention. It is a typical perspective view which illustrates the bathtub using the drain plug device concerning an embodiment. It is the typical perspective view which the AA line shown in FIG. 2 fractured | ruptured. It is typical sectional drawing which illustrates the attachment position of a fixing member. FIG. 5A and FIG. 5B are schematic perspective views illustrating the fixing member. It is the typical sectional view which expanded a part of fixing member. It is a typical perspective view which illustrates the projection for screwing operation of the 2nd member. It is a typical perspective view which illustrates the projection part of the 2nd member.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a schematic cross-sectional view illustrating a drain plug device for a bathtub according to an embodiment of the invention.
FIG. 2 is a schematic perspective view illustrating a bathtub using the drain plug device according to the embodiment.
FIG. 3 is a schematic perspective view in which the AA line shown in FIG. 2 is broken.
FIG. 4 is a schematic cross-sectional view illustrating the attachment position of the fixing member.

  As shown in FIG. 1, the drain plug device 110 for a bathtub according to the embodiment includes a drain plug 10, an operation unit 20, a release wire 30, a protective tube 40, and a fixing member 50. As shown in FIG. 2, the drain plug 10 is a plug that opens and closes a drain port 310 provided on the bottom surface of the bathtub 300. The drain plug 10 is opened and closed by a remote operation by the operation unit 20.

  The operation unit 20 has, for example, a push-type button, and the drain plug 10 is opened and closed by pressing this button. As illustrated in FIG. 2, the operation unit 20 is disposed at a position (lower) lower than the overflow surface (upper surface of the flange) 320 of the bathtub 300. The operation part 20 is attached to the apron 230 which covers the outer side surface of the bathtub 300, for example.

  The release wire 30 is provided between the drain plug 10 and the operation unit 20, and transmits the operation of the operation unit 20 to the drain plug 10. The release wire 30 includes an outer tube 31 and an inner wire 32. The inner wire 32 is inserted into the outer tube 31.

  One end of the protection tube 40 is connected to a drain pipe 250 provided below the drain port 310. The protective tube 40 contains the release wire 30. That is, the release wire 30 is inserted into the protective tube 40. The protection tube 40 incorporates the release wire 30 and serves to protect the release wire 30.

  The end (other end) of the protective tube 40 opposite to the drain pipe 250 is attached to the fixing member 50. As shown in FIGS. 3 and 4, the fixing member 50 is attached to a fixing portion 60 disposed behind the apron 230 (between the apron 230 and the bathtub 300).

  As shown in FIG. 1, the fixing member 50 includes a first member 51, a second member 52, and a water stop member 53. The first member 51 has one end 51a and the other end 51b. The first member 51 is provided with a communication hole 51h through which the release wire 30 is inserted from one end 51a to the other end 51b. One end 51 a of the first member 51 is disposed on the back side (the bathtub 300 side) of the fixed portion 60. The other end 51 b of the first member 51 is connected to the protective tube 40. Further, a flange portion 51 f is provided at one end 51 a of the first member 51. The flange portion 51f contacts the back side of the fixed portion 60.

  The second member 52 is disposed on the front surface side (the apron 230 side) of the fixed portion 60. The second member 52 is provided with a flange portion 52f. The flange portion 52f contacts the front side of the fixed portion 60.

  As shown in FIG. 4, the fixing portion 60 is provided with a through hole 60 h. The second member 52 is inserted into the through hole 60h from the apron 230 side, and is fastened and fixed to the first member 51 on the bathtub 300 side. Thereby, the first member 51 and the second member 52 are fixed to the fixing portion 60 so that the fixing portion 60 is sandwiched between the flange portion 51f of the first member 51 and the flange portion 52f of the second member 52. The

  The water stop member 53 is a cylindrical body inserted from the second member 52 side to the first member 51 side. The water stop member 53 is mounted in the communication hole 51 h of the first member 51. An insertion hole 53 h into which the release wire 30 is slidably inserted is provided at the center of the water stop member 53. The water stop member 53 is provided so as to fill a gap between the release wire 30 and the first member 51.

  In the configuration in which the end portion of the protective tube 40 is connected to the drain pipe 250, water (including cold water, hot water, etc.) that has flowed through the drain pipe 250 may flow backward in the protective tube 40. In the drain plug device 110 according to the present embodiment, the protection tube 40 is connected to one end 51 a of the first member 51 of the fixing member 50, and the water stop member 53 is inserted into the gap between the communication hole 51 h of the first member 51 and the release wire 30. Is provided. For this reason, even if it is a case where water flows backward, water can be stopped by the water stop member 53, and water is not transmitted before the water stop member 53. In this way, it is possible to prevent water from being discharged from the operation unit 20.

  Further, in the drain plug device 110, the water is stopped by the first member 51 disposed closer to the drain pipe 250 than the fixed portion 60 as compared to the second member 52. Therefore, the water stop location can be reduced as compared with the case where the second member 52 stops the water, and the water stop treatment can be performed with the minimum necessary members.

Here, an example of the bathroom unit 500 provided with the drain plug device 110 will be described.
As shown in FIG. 2, the bathroom unit 500 includes a gantry 100, a washroom floor pan 200, a bathtub 300, and a drain plug device 110.
The gantry 100 includes a washing station gantry 101 and a tub gantry 102. The washroom stand 101 supports the washroom floor pan 200. That is, the washroom floor pan 200 is placed on the washroom stand 101. The bathtub base 102 supports the bathtub 300. That is, the bathtub 300 is placed on the bathtub base 102.

  The washing room gantry 101 includes support legs 111 provided in the lower part. On the other hand, the bathtub base 102 has support legs 121 provided in the lower part. The gantry 100 is placed on an installation surface (for example, a building floor) such as a bathroom (not shown) in a state where a washing basin gantry 101 and a tub gantry 102 are connected.

  The washing ground floor pan 200 has a washing ground 201 and a washing ground drain 210. The water above (front side) the washing ground floor pan 200 passes through the washing ground drain 210 and is guided to a bathroom drain trap (not shown). Then, the water guided to the bathroom drain trap passes through a building drain pipe (not shown) provided below (back side) of the washroom floor pan 200 and is discharged. That is, the washroom drain 210 can discharge water from the washroom 201.

  The bathtub 300 has a drain outlet 310. The water in the bathtub 300 passes through the drain outlet 310 and is guided to the bathroom drain trap. And the water led to the bathroom drain trap passes through a building drain pipe provided under (back side) of the wash floor pan 200 and is discharged. That is, the drain port 310 can discharge the water in the bathtub 300.

  As shown in FIG. 2, an apron 230 is installed between the washing floor pan 200 and the bathtub 300. Apron 230 covers the outer side surface of bathtub 300. The apron 230 is attached so as to close an opening formed between the washing floor pan 200 and the bathtub 300.

  As shown in FIGS. 2 and 3, the drain plug 10 is provided to be openable and closable so as to cover the drain port 310 of the bathtub 300. The operation unit 20 is provided on the apron 230, for example. The apron 230 is fitted between the lower surface of the flange of the bathtub 300 and the upper surface of the washroom floor pan 200. Therefore, when the operation unit 20 is attached to the apron 230, the height of the operation unit 20 is lower than the overflow surface 320 of the bathtub 300.

  As shown in FIGS. 3 and 4, the fixing portion 60 is disposed between the outer side surface of the bathtub 300 and the apron 230. The fixing part 60 is attached to a panel 61 installed upward from an edge of the washing floor floor pan 200 on the bathtub 300 side. Note that the panel 61 itself may be used as the fixing portion 60.

  The fixing member 50 is attached to the fixing portion 60. In the present embodiment, the fixing portion 60 to which the fixing member 50 is attached is fixed to the panel 61. A release wire 30 is provided between the fixing member 50 and the operation unit 20. That is, the release wire 30 is routed between the fixing portion 60 and the apron 230.

  A protective tube 40 is provided between the fixing member 50 and the drain pipe 250. That is, the protective tube 40 is routed between the fixed portion 60 and the outer side surface of the bathtub 300. Therefore, even if water flows backward from the drain pipe 250 to the protection tube 40, the water that has flowed back is not transmitted from the fixing member 50 to the operation unit 20 side because the water is stopped by the water stopping member 53 of the fixing member 50. Thereby, even if the operation part 20 is arrange | positioned below the overflow surface 320 of the bathtub 300, it can prevent that water is discharged | emitted from the operation part 20. FIG.

Next, details of the drain plug device 110 will be described.
FIG. 5A and FIG. 5B are schematic perspective views illustrating the fixing member.
FIG. 5A shows the fixing member 50, the protective tube 40, and the release wire 30. FIG. 5B shows the water stop member 53 and the release wire 30.
FIG. 6 is a schematic cross-sectional view in which a part of the fixing member is enlarged.

  As shown in FIG. 5A, the fixing member 50 includes a first member 51, a second member 52, and a water stop member 53. The first member 51 has a first cylinder part 511, a second cylinder part 512, and a third cylinder part 513 from one end 51a to the other end 51b. A flange portion 51f is provided on one end 51a side of the first tube portion 511.

  The outer diameter of the first cylinder part 511 is larger than the outer diameter of the second cylinder part 512, and the outer diameter of the second cylinder part 512 is larger than the outer diameter of the third cylinder part 513. That is, the outer diameter decreases in order from the first tube portion 511 to the third tube portion 513.

  Further, the inner diameter of the first cylinder part 511 is larger than the inner diameter of the second cylinder part 512, and the inner diameter of the second cylinder part 512 is larger than the inner diameter of the third cylinder part 513. That is, the inner diameter also decreases in order from the first cylinder part 511 to the third cylinder part 513.

  The second member 52 is screwed into the first cylinder portion 511 of the first member 51. A male screw is formed on the outer peripheral surface of the second member 52, and a female screw is formed on the inner peripheral surface of the first cylindrical portion 511. As a result, the second member 52 is screwed into the first cylindrical portion 511 of the first member 51.

  A water stop member 53 is inserted into the second cylindrical portion 512 of the first member 51. As shown in FIG. 5B, the water stop member 53 includes a cylindrical body portion 530 that is inserted from the second member 52 side to the first member 51 side. The cylindrical body part 530 includes a body part 531, a reduced diameter part 532, and a flange part 533. The reduced diameter portion 532 is provided on one end side of the body portion 531, and the flange portion 533 is provided on the other end side of the body portion 531.

  A protrusion 53t is provided on the outer periphery of the water stop member 53 that contacts the first member 51 (second cylinder portion 512). That is, the protrusion 53 t is provided on the outer periphery of the body portion 531 near the reduced diameter portion 532. When the water stop member 53 is inserted into the second tube portion 512, the water stop member 53 is fitted into the second tube portion 512 so that the protrusion 53t is crushed. The protrusion 53t improves the water stop performance between the first member 51 and the water stop member 53.

  A plurality of the protrusions 53t may be provided on the outer periphery of the water stop member 53. In the example shown in FIG. 5B, two protrusions 53t are provided. As illustrated in FIG. 6, the protrusion 53 t has a height of about 50% of the height before insertion when the water stop member 53 is inserted into the second cylindrical portion 512. If the height of the protrusion 53t is too high, it becomes difficult to insert the water stop member 53 into the first member 51. On the other hand, if the height of the protrusion 53t is too low, the water stop member 53 can be easily inserted into the first member 51, but the water stop performance is deteriorated. Therefore, it is preferable that the height of the protrusion 53t is designed so as to collapse to about 50% of the height before insertion.

  The reduced diameter portion 532 is fitted into the third cylindrical portion 513 of the first member 51. When the water stop member 53 is inserted into the first member 51, the stepped surface between the reduced diameter portion 532 and the body portion 531 is inserted until it abuts against the stepped surface between the second cylindrical portion 512 and the third cylindrical portion 513. The The water stop effect can be obtained even at the contact portion between the step surface of the water stop member 53 and the step surface of the first member.

  The flange portion 533 has an outer diameter substantially equal to the inner diameter of the second member 52. When the reduced diameter portion 532 of the water stop member 53 is inserted into the first member 51, the flange portion 533 of the water stop member 53 is close to the inner diameter portion of the second member 52. That is, the flange portion 533 is disposed so as to fill a gap between the body portion 531 and the inner surface of the second member 52. Thereby, when the water stop member 53 is fitted into the first member 51, the wobble on the second member 52 side of the water stop member 53 can be prevented and stabilized.

  An insertion hole 53h for slidably inserting the release wire 30 is provided at the center of the water stop member 53. A water stopping protrusion 53s is provided on the inner surface of the insertion hole 53h. The water stopping ridge 53s is provided in a portion of the inner surface of the insertion hole 53h where the water stopping member 53 is inserted into the communication hole 51h of the first member 51. The water stopping protrusion 53s is provided at the same position as the protrusion 53t in the axial direction of the water stopping member 53. That is, the protrusion 53t is provided at the same position as the water stop protrusion 53s in the axial direction of the water stop member 53.

  When the release wire 30 is inserted into the insertion hole 53h, the outer periphery of the release wire 30 comes into contact with the water stopping protrusion 53s. At this time, the release wire 30 is inserted into the insertion hole 53h so that the water stopping protrusion 53s is crushed. The water stop performance between the water stop member 53 and the release wire 30 is improved by the water stop protrusion 53s. As shown in FIG. 6, the height of the water stopping ridge 53s is crushed to a height of about 50% before insertion when the release wire 30 is inserted, like the height of the ridge 53t. It is preferable to design.

  As shown in FIG. 5B, a groove 532 g is provided on the distal end side of the reduced diameter portion 532 of the water stop member 53. A sliding restrainer (for example, fastening band 55a) is attached to the groove 532g. By attaching the fastening band 55a to the groove 532g in a state where the release wire 30 is inserted into the insertion hole 53h of the water stop member 53, sliding of the release wire 30 with respect to the water stop member 53 is suppressed. Moreover, you may attach a sliding suppression tool (for example, fastening band 55b) near the water stop member 53 of the release wire 30. FIG.

  When such fastening bands 55a and 55b are provided, the release wire 30 is not pulled out of the water stop member 53 during maintenance or the like, so that the release wire 30 on the drain plug side is bent more than necessary. Can be prevented from being damaged.

  As shown in FIG. 5A and FIG. 6, the protective tube 40 is fitted on the outer side of the third cylinder portion 513 of the first member 51. A convex portion 513t is provided on the outer side of the third cylindrical portion 513. When the protective tube 40 is inserted into the third cylindrical portion 513, the convex portion 513t is fitted into a concave portion (not shown) of the bellows-shaped protective tube 40. Thereby, the protective tube 40 is fixed to the first member 51.

FIG. 7 is a schematic perspective view illustrating a protrusion for screwing operation of the second member.
FIG. 7 shows a schematic perspective view in which a part of the fixing member 50 or the like is broken. As shown in FIG. 7, the second member 52 is provided with a protrusion 521 for screwing operation. The screwing operation protrusion 521 is provided on the surface 52 a of the second member 52 opposite to the first member 51.

  In the example shown in FIG. 7, two screw operation protrusions 521 are provided on the surface 52a. The two screwing operation protrusions 521 are arranged at positions opposite to each other at the center of the second member 52. As a result, the operator can easily screw the second member 52 to the first member 51 with the force of the hand using the protrusion 521 for screwing operation. Note that the number of protrusions 521 for screwing operation is not limited to two, and three or more may be provided.

  In addition, as illustrated in FIG. 7, a fixing tool 525 is provided on the flange portion 52 f of the second member 52. The fixing tool 525 is fixed to the flange portion 52f by, for example, a bolt 525b. The fixing tool 525 extends in the center direction of the second member 52 from the flange portion 52f. The extension part of the fixing tool 525 can prevent the water stop member 53 from coming out to the second member 52 side. Note that the fixing tool 525 is provided in at least one place, preferably two places facing each other.

FIG. 8 is a schematic perspective view illustrating the protrusion of the second member.
As shown in FIG. 8, a protrusion 523 is provided on the surface 52 a of the second member 52 opposite to the first member 51. The protrusion 523 is provided in the vicinity of the screwing operation protrusion 521. In the example shown in FIG. 8, a protrusion 523 is provided on each of one side and the other side centering on one protrusion 521 for screwing operation.

  The height of the protrusion 523 (the height from the surface 52a) is lower than the height of the protrusion 521 for screwing operation. Further, the surface 523a of the protrusion 523 opposite to the screwing operation protrusion 521 is inclined with respect to the surface 52a. The angle of inclination of the surface 523a is preferably lying, for example, about 45 degrees or less.

  By providing such a protrusion 523, when the second member 52 is fastened to the first member 51 by screwing, the tool TL is prevented from being accidentally caught by the screwing operation protrusion 521. Can do. That is, by providing the protrusion 523, even if the tool TL is hooked on the screwing operation protrusion 521, it is not caught by the inclination of the surface 523 a of the protrusion 523, and the second member 52 using the tool TL is not caught. Tightening cannot be performed.

  On the other hand, since the height of the screwing projection 521 is higher than the height of the projection 523, the operator can easily pick the screwing projection 521. Therefore, the operator picks the screwing operation protrusion 521 with his hand, not the tool TL, and fastens the second member 52 to the first member 51 with his hand.

  As described above, according to the present embodiment, even if the protective tube 40 that protects the release wire 30 is connected to the drain pipe 250, the water that has flowed backward from the drain pipe 250 to the protective tube 40 is stopped by the fixing member 50. Water can be stopped by the water member 53, and water can be prevented from being discharged from the operation unit 20 disposed below the overflow surface 320 of the bathtub 300.

  The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, dimensions, material, arrangement, etc. of each element provided in the drain plug device 110 and the installation form of the drain plug 10, the operation unit 20, etc. are not limited to those illustrated, but can be changed as appropriate. .

  DESCRIPTION OF SYMBOLS 10 ... Drain plug, 20 ... Operation part, 30 ... Release wire, 31 ... Outer tube, 32 ... Inner wire, 40 ... Protection tube, 50 ... Fixing member, 51 ... First member, 51f ... Flange part, 51h ... Communication hole , 52 ... second member, 52 f ... flange part, 53 ... water stop member, 53 h ... insertion hole, 53 s ... water stop protrusion, 53 t ... protrusion, 55 a, 55 b ... fastening band, 110 ... drain plug device, 60 ... Fixing part, 60h ... Through-hole, 61 ... Panel, 230 ... Apron, 250 ... Drain pipe, 300 ... Bathtub, 310 ... Drain port, 500 ... Bathroom unit, 511 ... First cylinder part, 512 ... Second cylinder part, 513: Third cylinder portion, 513t: Projection portion, 521 ... Projection portion for screwing operation, 523 ... Projection portion, 525 ... Fixing tool, 531 ... Body portion, 532 ... Reduced diameter portion, 533 ... Flange portion

Claims (6)

A drain plug that opens and closes the drain of the bathtub;
An operation unit that is disposed at a position lower than the overflow surface of the bathtub, and remotely controls opening and closing of the drain plug;
A release wire that transmits the operation of the operation unit to the drain plug;
A protective tube which is connected to a drain pipe connected to the lower part of the drain port and incorporates the release wire;
A fixing member for attaching an end portion of the protective tube opposite to the drain pipe to a fixing portion provided behind an apron that covers an outer side surface of the bathtub;
With
The fixing member is
A first member having one end connected to the protective tube and the other end disposed on the back side of the fixed portion, and provided with a communication hole through which the release wire is inserted from the one end to the other end;
A second member that is disposed on the front surface side of the fixed part and attaches the first member to the fixed part by fastening with the first member;
A water stop member attached to the communication hole of the first member, and filling a gap between the release wire and the first member;
A drain plug device for a bathtub characterized by comprising:   The said water stop member has a flange part which adjoins the internal diameter part of said 2nd member, The drain plug apparatus of the bathtub of Claim 1 characterized by the above-mentioned. The second member is
A protrusion for screwing operation provided on a surface opposite to the first member;
A projection that is provided in the vicinity of the protrusion for screwing operation, has a lower height than the protrusion for screwing operation, and has an inclined surface opposite to the protrusion for screwing operation;
The bathtub drain plug apparatus according to claim 1 or 2, characterized by comprising: The water stop member is a cylindrical body inserted from the second member side to the first member side,
An insertion hole into which the release wire is slidably inserted is provided at the center of the water stop member,
Of the inner surface of the insertion hole, a water stopping protrusion is formed at a portion where the water stopping member is inserted into the communication hole of the first member to stop water by contacting the outer periphery of the release wire. The drain plug device for a bathtub according to any one of claims 1 to 3.   The drain plug device for a bathtub according to claim 4, wherein a protrusion is formed on an outer periphery of the water stop member which is located at the same position as the water stop protrusion in the axial direction of the water stop member. A sliding restraining tool for restraining the release wire from sliding relative to the water stop member;
The drain plug device for a bathtub according to any one of claims 1 to 5, wherein the sliding restrainer is attached to the water stop member or a release wire.

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