JP6014307B2 - Drain plug device - Google Patents

Description

  The present invention relates to a drain plug device for operating a plug lid provided at a drain port of a tank body.

  2. Description of the Related Art Conventionally, there is known a drain plug device that moves a plug lid up and down (that is, opens and closes a drain port) by remote control by operating an operation mechanism provided at an overflow port of a tank body (for example, a bathtub). Such a drain plug device includes a rotatable operation handle, a transmission member (for example, a wire) for transmitting a driving force generated by the operation of the operation handle to the plug lid, and a transmission member for rotating the operation handle. What is provided with the operation | movement direction conversion mechanism for converting into the operation | movement along the axial direction of this is known.

  The operation direction changing mechanism is generally constituted by a cam, a gear (such as a rack and pinion), and the like, and is disposed outside or inside the overflow pipe. In addition, the transmission member is arranged outside the overflow pipe in a state of being aligned with the overflow pipe. An insertion hole is provided in the overflow pipe in order to bring the operation direction conversion mechanism and the transmission member out of the overflow pipe. Further, an operation direction changing mechanism and an insertion hole are also provided on the drain outlet side.

  However, if the operation direction changing mechanism is configured using cams or gears, the structure becomes complicated, which may increase the manufacturing cost. Moreover, if an insertion hole is provided in the overflow pipe or the like, water leakage may occur from the insertion hole.

  Therefore, instead of the operation handle, an operation button that can be displaced along the axial direction of the transmission member is used, so that the operation direction conversion mechanism is omitted, and the transmission member is provided inside the overflow pipe, so that the overflow pipe or the like. A technique has been proposed in which a transmission member can be connected to both an operation mechanism and a plug lid drive mechanism that supports the plug lid so as to be movable up and down without forming an insertion hole in the cable (for example, Patent Documents). 1 etc.). In this technique, each time the push button is pushed, the cap lid is moved up and down alternately, and when the drain port is closed, the operation button protrudes from the surface of the tank body, More reliable drainage from is guaranteed.

Japanese Patent No. 4287128

  However, in the above technique, the protrusion amount of the operation mechanism with respect to the outer side (back side) of the tank body is relatively large corresponding to the stroke amount of the operation button. Therefore, it is necessary to secure a sufficient space (internal space) between the back surface of the tank body and the wall surface of the bathroom or the like. In other words, in the technique described in Patent Document 1, the position where the operation mechanism can be disposed is limited to a position where a sufficient internal space exists between the tank body and the wall surface.

  Furthermore, since the operation button protrudes from the surface of the tank body when the drainage port is closed, there is a possibility that appearance quality and safety may be impaired. On the other hand, it is conceivable that the operation button does not protrude when the drain port is closed, but in this case, the drainage ability from the overflow port is reduced. Furthermore, the protrusion amount of the operation mechanism with respect to the outer side (back side) of the tank body is further increased, and the position where the operation mechanism can be disposed may be further limited.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the appearance quality and safety as well as to attach an operation mechanism to a tank body whose internal space is not so large. It is in providing the drain plug device which can do.

  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 drain wall provided on the bottom wall, an overflow port provided on the side wall, and an overflow connected to the overflow port, having a bottom wall and a side wall standing on the bottom wall A drain plug device attached to a tank body comprising a pipe,
A stopper lid provided at the drain;
A stopper lid driving mechanism that supports the stopper lid and can open and close the drain port by moving the stopper lid up and down relative to the tank body;
Before SL has a rotatable operating handle along the surface of the side wall portion, an operation mechanism provided in the overflow port,
A wire, and a transmission member that transmits a driving force generated by the operation of the operation handle to the plug lid driving mechanism.
The overflow pipe communicates with the drain port, and the transmission member is disposed in the overflow pipe.
The transmission member is connected to the stopper cover driving mechanism and the operation mechanism in a space formed by an inner peripheral surface of the overflow port, an inner peripheral surface of the overflow pipe, and an inner peripheral surface of the drain port.
The operation Organization, together form a curved shape, has a guide member guide path, wherein the transmission member is disposed is provided,
The operation handle is configured to be rotatable relative to the guide member,
By the previous SL guide passage the transmission member reciprocates, the before and after the guide path, the direction of movement of the transmission member in a direction intersecting with the plane in the direction of the operating movement direction and parallel to the plane of the handle drain plug device according to claim Rukoto are converted to.

According to the means 1, the operation mechanism is provided with the curved guide passage, and the operation direction of the transmission member is changed with a very simple configuration in which the transmission member reciprocates in the guide passage. be able to. Therefore, the operation mechanism can be simplified and the operation mechanism can be downsized. Further, the operating handle is a round if capacity along the surface of the side wall, as compared with the case of using the operation buttons, much amount of projection of the operating mechanism relative to the outer tank body (back side) Can be small. As a result, the operation mechanism can be attached to the side wall portion of the tank body whose internal space is not so large.

  Further, since the operation direction can be changed only by reciprocating the transmission member in the guide passage, the manufacturing cost can be reduced as compared with the case where a cam, a gear, or the like is used. Furthermore, since the operation mechanism can be downsized as described above, a large drainage passage from the overflow port can be secured, and good drainage can be realized.

  In addition, according to the means 1, the transmission member is disposed inside the overflow pipe, and the space formed by the inner peripheral surface of the overflow port, the inner peripheral surface of the overflow tube, and the inner peripheral surface of the drain port. (In other words, in the space from the overflow port to the drain port through the inside of the overflow pipe), the transmission member is connected to the plug lid driving mechanism and the operation mechanism. That is, according to the means 1, it is not necessary to form an insertion hole in the overflow pipe or the like in order to connect the transmission member to the operation mechanism and the plug lid driving mechanism. Therefore, the occurrence of water leakage due to the presence of the insertion hole can be prevented more reliably.

The operation handle is along the surface of the side wall portions are the times whether ability to closed the only time open no drain outlet of the drain outlet (i.e., at all times) projects largely from the side wall portion of the tank body It is configured without. As a result, excellent appearance quality and safety can be realized.

  Mean 2. The drain plug device according to claim 1, wherein the operation mechanism, the transmission member, and the plug lid driving mechanism can be extracted and assembled from at least one of the overflow port and the drain port. .

  According to the above means 2, even if the operation mechanism, the plug lid drive mechanism, etc. should malfunction, the operation mechanism, the plug lid drive mechanism, and the transmission member can be removed without removing the overflow pipe from the overflow port. It can be extracted from the surface side of the tank body or assembled from the drain port or overflow port. Therefore, labor and labor required for repair and replacement can be reduced, and workability can be improved.

Means 3. A return force application unit that applies a return force toward the operation mechanism to the transmission member is provided,
The operation mechanism includes a handle support that supports the operation handle and is directly or indirectly fixed to the overflow pipe.
The handle support is provided with a handle support member that supports the operation handle and operates by the operation of the operation handle.
By the return force from the return force applying portion, at least when the drain outlet is open, the end portion of the transmission member is configured to be able to contact the handle support member,
The drainage port is opened by pressing the end of the transmission member with the handle support member in accordance with the operation of the operation handle, the pressing force applied to the end of the transmission member by the handle support member is released, and the return 3. The drain plug device according to claim 1 or 2, wherein the drainage port is closed by operating the transmission member with a return force from a force applying unit.

  According to the means 3, the handle support member only needs to be able to push the end of the transmission member in order to open the drain port, and it is not necessary to pull the transmission member to close the drain port. Therefore, it is not necessary to fix the end of the transmission member to the handle support member, and the structure of the operation mechanism can be further simplified.

Means 4. The operation mechanism includes a handle support that supports the operation handle and is directly or indirectly fixed to the overflow pipe.
The handle support is provided with a handle support member that supports the operation handle and operates by the operation of the operation handle.
The transmission member is fixed to the handle support member,
The drainage port is opened by pushing the transmission member with the handle support member as the operation handle moves, and the drainage port is pulled by pulling the transmission member with the handle support member as the operation handle operates. 4. The drain plug device according to any one of means 1 to 3, wherein the drain plug device is in a closed state.

  When a foreign substance enters the guide passage, the transmission member may not return to the original position by the return force from the return force applying unit, and the drainage port cannot be closed.

  In this regard, according to the means 4, the transmission member is fixed to the handle support member, and the drainage port can be closed by pulling the transmission member. Therefore, even when a foreign substance enters the guide passage, the transmission member can be operated more reliably, and the drain outlet can be opened and closed more reliably.

Means 5. A first member having one of a one or a plurality of locking portions having a convex shape or a concave shape, and a first locked portion and a second locked portion that can be locked by the locking portion; A locking mechanism including a locking part and a second member having the other of the locked parts;
One of the first member and the second member operates by displacement of the operation handle,
The drain is closed when the operating handle is moved to a predetermined first position and the locking portion is locked to the first locked portion, and the operating handle is locked at a predetermined second position. The drainage according to any one of claims 1 to 4, wherein the drainage port is locked in an open state by locking the locking portion with the second locked portion. Stopper device.

  According to the means 5, the lock in the open / closed state of the drain port can be realized with a simple structure without using a complicated structure such as a thrust lock mechanism.

Means 6. The operating handle is supported by one of the members of the previous SL first member and the second member,
The one member is provided with a columnar portion that rotates as the operation handle rotates.
The other member of the first member and the second member is provided with an insertion portion through which the columnar portion is inserted,
One of the locking part and the two locked parts is provided on the outer peripheral surface of the columnar part, and the other of the locking part and the two locked parts is provided on the inner peripheral surface of the insertion part. The drain plug device according to claim 5, wherein the drain plug device is provided.

  According to the above means 6, the locking portion is always engaged with the locked portion by the protruding locking portion or the first and second locked portions (that is, even when the operation handle is operated). One member (columnar portion thereof) is pressed against the other member (insertion portion thereof) even when it is stopped. Therefore, during operation of the operation handle, it is possible to prevent backlash and displacement of the member that supports the operation handle, and thus backlash of the operation handle itself can be prevented.

Mean 7 The operating mechanism, as well as comprised of a plurality of members, at least one outer surface of the member is formed with a groove,
Any said at Rukoto such a state that each member is combined, the unit 1 to 6, wherein Rukoto said guide passage is formed between the outer surface of the member facing the groove and the groove The drain plug device according to crab.

  According to the means 7, guide passages having various shapes can be easily formed. As a result, the operation direction of the transmission member can be converted into various directions.

It is a partially broken perspective view which shows the structure of a drain plug device. It is a partial expanded sectional view which shows the support shaft member etc. which were provided in the drain outlet. It is a partially broken perspective view which shows the operation handle etc. at the time of closing of a drain outlet. It is a partially broken perspective view which shows the operation handle etc. at the time of opening of a drain outlet. It is a disassembled perspective view which shows structures, such as an operation mechanism. It is a partial expanded sectional view which shows the internal structure of an operation handle. It is a perspective view which shows the operation handle provided in the bathtub. It is a perspective view which shows the operation handle etc. at the time of closing of a drain outlet. It is a perspective view which shows the operation handle etc. at the time of opening of a drain outlet. It is a disassembled perspective view which shows structures, such as a handle | steering-wheel support member. (A), (b) is a rear perspective view of a handle support member. It is a perspective view which shows the structure of an inner peripheral guide member. It is a perspective view which shows the structure of an outer periphery guide member. It is a disassembled perspective view which shows structures, such as a support shaft member. It is a partial expanded sectional view which shows the stopper cover drive mechanism etc. at the time of opening of a drain outlet. It is a partial expanded sectional view which shows the stopper cover drive mechanism etc. at the time of the compression deformation of a shock absorber spring. It is a disassembled perspective view which shows structures, such as a handle | steering-wheel support member in another embodiment. (A), (b) is a rear perspective view of the handle support member in another embodiment. It is a perspective view which shows the structure of the inner peripheral guide member in another embodiment. It is a see-through | perspective schematic diagram which shows the internal structure of the handle | steering-wheel support body in another embodiment. It is a partially broken perspective view which shows the structure of the cover member in another embodiment. In another embodiment, it is a perspective view which shows an operation handle, a cover member, etc. when a drain outlet is in a closed state. In another embodiment, it is a perspective view which shows an operation handle, a cover member, etc. when a drain outlet is in an open state.

  Hereinafter, an embodiment will be described with reference to the drawings. In this embodiment, as shown in FIG. 1, the drain plug device 1 includes an operation mechanism 2, a transmission member (for example, a wire) 4, an overflow port member 5, a support shaft member 6, a drain port member 7, and a plug lid drive mechanism 8. And a lid lid 9 is attached to a bathtub 100 as a tank body.

  The bathtub 100 is a molded product, and includes a bottom wall portion 101 and a side wall portion 102 erected on the outer periphery of the bottom wall portion 101. Further, the bottom wall 101 is provided with a drainage port 103 for discharging water in the bathtub 100, and an overflow port 104 for preventing overflow from the bathtub 100 is provided at the upper part of the side wall 102. Is provided. In the present embodiment, the side wall 102 is relatively close to the wall surface (not shown) of the bathroom, and the internal space formed between the back surface of the side wall 102 and the wall surface of the bathroom is somewhat. It is in a small state.

  In addition, as shown in FIG. 2, the drainage port 103 includes a cylindrical pipe 105 serving as a flow path of water discharged from the bathtub 100. The pipe 105 includes a pipe main body 106 and a drain outlet connection portion 107 that branches from the pipe main body 106 and extends upward. Further, the drain port connecting portion 107 has a flange-like flange portion 107A that protrudes radially outward at an end portion thereof, and has a female screw portion 107B on its inner peripheral surface. And the drainage port 103 provided with the piping 105 is formed by screwing the drainage port member 7 inserted in the drainage port 103 and having the external thread portion 71 on the outer peripheral surface with the drainage port connection portion 107. .

  In addition, in the drainage port 103, the bottom wall part 101 of the bathtub 100 is pinched | interposed by the flange part 107A of the drainage port connection part 107, and the overhang | projection part 72 which protrudes from the upper part among the drainage port members 7 to the outer peripheral side. It has become a state. An annular seal member 10 made of an elastic material such as EPDM rubber is provided between the upper surface of the flange portion 107A and the back surface of the bottom wall portion 101. The seal member 10 is sandwiched between the flange portion 107A and the bottom wall portion 101 as the drain port member 7 is screwed to the drain port connecting portion 107. As a result, the drain port 103 Prevention of water leakage when draining from In addition, an annular seal member 11 made of an elastic material such as EPDM rubber is also disposed between the overhanging portion 72 of the drain port member 7 and the surface of the bottom wall portion 101, thereby preventing water leakage from the bathtub 100. Is planned.

  In addition, as shown in FIGS. 3 and 4, an overflow pipe 108 serving as a flow path for water discharged from the overflow port 104 is connected to the overflow port 104. The overflow pipe 108 includes an overflow joint 109 having a bent cylindrical shape, and an overflow pipe body 110 having a cylindrical shape and having the other end portion of the overflow joint 109 fixed to one end portion thereof. The overflow port joint 109 includes a flange-like flange portion 109A that protrudes radially outward at one end portion thereof, and a female screw portion 109B on an inner peripheral surface of one end side thereof. An overflow pipe 108 is connected to the overflow port 104 by screwing the overflow port member 5 inserted into the overflow port 104 and having the external thread portion 51 formed on the outer peripheral surface thereof into the overflow joint 109. .

  When the overflow pipe 108 and the overflow port 104 are connected, the side wall 102 is sandwiched between the flange portion 52 formed at one end of the overflow port member 5 and the flange portion 109A of the overflow joint 109. It has become. Further, an annular member 12 made of an elastic material such as EPDM rubber is disposed between the flange portion 52 of the overflow port member 5 and the surface of the side wall portion 102, and the bathtub 100 is damaged by the contact of the flange portion 52. The prevention etc. are aimed at.

  Further, an annular packing 13 made of an elastic material such as EPDM rubber is provided between the flange portion 109 </ b> A of the overflow joint 109 and the back surface of the side wall portion 102. The packing 13 is in a state of being sandwiched between the flange portion 109 </ b> A and the side wall portion 102 as the overflow port member 5 is screwed to the overflow joint 109. As a result, water leakage during drainage from the overflow port 104 is prevented, and the overflow joint 109 and thus the overflow pipe 108 are connected to the bathtub by the frictional force between the packing 13 and the overflow joint 109 (flange portion 109A) and the side wall portion 102. 100 is firmly fixed to 100.

  As shown in FIG. 1, the overflow pipe 108 (overflow pipe main body 110) is connected to the drain port 103 by fixing the end of the pipe main body 106 to the other end of the overflow pipe 108. That is, the overflow pipe 108 is in communication with the drainage port 103.

  Next, the operation mechanism 2 provided in the overflow port 104 will be described.

  As shown in FIGS. 3 to 7 (in FIG. 5, illustration of the side wall portion 102 is omitted), the operation mechanism 2 includes an operation handle 21 that can rotate relative to the bathtub 100, and an operation handle. And a handle support member 22 having a handle support member 23 (corresponding to the first member of the present invention) for supporting 21.

  First, the configuration of the operation handle 21 and the structure for attaching the operation handle 21 to the handle support 22 (handle support member 23) will be described.

  The operation handle 21 is formed of a predetermined metal (for example, SUS or the like) or resin, has a bottomed cylindrical shape, and includes a knob portion 211 that forms a protrusion extending along the radial direction of the operation handle 21. ing. In addition, a cutout portion 21 </ b> A serving as a drainage channel is provided on the outer peripheral surface of the operation handle 21.

  A concave mounting hole 212 is formed in the center of the back surface of the operation handle 21. A cylindrical support shaft 231 provided at the center of the surface of the handle support member 23 is inserted into the mounting hole 212, so that the operation handle 21 is supported by the handle support member 23 (handle support 22). Has been.

  In addition, as shown in FIGS. 4 and 6, two insertion holes 213 </ b> A and 213 </ b> B are formed on the back surface of the operation handle 21 so as to sandwich its own central axis. Then, by inserting the protruding insertion portions 232A and 232B formed on the surface of the handle support member 23 into the insertion holes 213A and 213B, relative rotation of the operation handle 21 with respect to the handle support member 23 is restricted. ing. Accordingly, the handle support member 23 is rotated together with the operation handle 21 by the rotation operation (displacement) of the operation handle 21.

  The inner diameters of the insertion holes 213A and 213B are different from each other, the outer diameter of the insertion portion 232A is set to a size corresponding to the inner diameter of the insertion hole 213A, and the outer diameter of the insertion portion 232B is the insertion hole 213B. The size corresponds to the inner diameter. This prevents a situation in which the mounting position of the operation handle 21 with respect to the handle support member 23 is shifted by 180 degrees along the circumferential direction, and the mounting position of the operation handle 21 with respect to the handle support member 23 is uniquely determined. ing.

  Further, as shown in FIGS. 5 and 6, a flange portion 231 </ b> A that protrudes radially outward is provided at the distal end portion of the support shaft 231, and the flange portion 231 </ b> A is attached to the mounting hole 212 of the operation handle 21. It is latched with respect to the step part 212A formed in this. In addition, the flange portion 231A is provided between two cutouts extending along the central axis direction of the support shaft 231 and can be elastically deformed along the radial direction.

  In addition, among the stepped portions 212A provided in the mounting holes 212, the surface on which the flange portion 231A is locked has a shape orthogonal to the insertion direction of the support shaft 231 with respect to the mounting holes 212. Further, the surface of the flange portion 231 </ b> A that is locked to the step portion 212 </ b> A has a shape that is orthogonal to the insertion direction of the support shaft 231 with respect to the mounting hole 212. Therefore, it is possible to effectively prevent the support shaft 231 from coming off from the mounting hole 212.

  Note that “perpendicular to the insertion direction of the support shaft 231 with respect to the mounting hole 212” means that the surface of the flange portion 231A (step portion 212A) that is locked to the step portion 212A (the flange portion 231A) is inserted. This includes not only the case of being strictly orthogonal to the direction but also the case of being slightly inclined (for example, within 10 degrees) with respect to the direction orthogonal to the insertion direction.

  In addition, an inclined portion 231B that is inclined toward the inner peripheral side of the support shaft 231 toward the distal end side is provided at the distal end portion of the flange portion 231A so that the support shaft 231 can be smoothly inserted into the mounting hole 212. It has become.

  Furthermore, the operation handle 21 is provided with a communication hole 214 that communicates between the outer peripheral surface of the operation handle 21 and the mounting hole 212, and a bar-shaped metal pin member 215 is inserted into the communication hole 214. It is installed.

  The pin member 215 is configured such that one end portion of the pin member 215 can come into contact with the flange portion 231 </ b> A, and the other end surface of the pin member 215 is exposed on the outer periphery of the operation handle 21. Then, by pressing the other end surface of the pin member 215 toward the inner side of the operation handle 21 (the flange portion 231A side), the flange portion 231A can be elastically deformed radially inward by one end portion of the pin member 215. It is like that. By elastically deforming the flange portion 231A toward the inner side in the radial direction, the engagement of the flange portion 231A with the step portion 212A is released.

  Further, a concave immersion portion 215 </ b> A extending along the longitudinal direction of the pin member 215 is formed on the outer peripheral surface of the pin member 215. The operation handle 21 is provided with a protruding portion 216 that protrudes toward the communication hole 214. And the movement of the pin member 215 toward the inner peripheral side and the outer peripheral side of the operation handle 21 is restricted by inserting the protruding portion 216 through the immersion portion 215A.

  In the present embodiment, the other end surface of the pin member 215 is the outer peripheral surface of the operation handle 21 in a state where the protruding portion 216 is in contact with the surface located on the center side of the operation handle 21 among the side wall surfaces forming the immersion portion 215A. The relative positions of the protruding portion 216 and the immersion portion 215A are set so as to be flush with each other. As a result, the other end surface of the pin member 215 is always in a state of being flush with the outer peripheral surface of the operation handle 21 or the outer peripheral surface.

  On the other hand, when the support shaft 231 is not inserted into the mounting hole 212 and the protruding portion 216 comes into contact with the surface located on the outer peripheral surface side of the operation handle 21 among the side wall surfaces forming the immersive portion 215A. When the support shaft 231 is inserted into the mounting hole 212 (that is, when the flange portion 231A is elastically deformed radially inward), the mounting shaft 212 is located closer to the central axis than the position where the inclined portion 231B is disposed. One end of the pin member 215 is configured not to be positioned. That is, the pin member 215 is configured not to protrude excessively toward the mounting hole 212 side.

  A spring member 219 is disposed between the other end of the pin member 215 and the operation handle 21. Except when the pin member 215 is pressed by the elastic force of the spring member 219, the surface located on the center side of the operation handle 21 among the side wall surfaces forming the immersive portion 215A is pressed against the protruding portion 216. The Rukoto. Therefore, except for the case where the pin member 215 is pressed, the other end surface of the pin member 215 and the outer peripheral surface of the operation handle 21 are maintained in a flush state.

  Further, the driving force generated by the turning operation of the operation handle 21 is transmitted to the plug lid 9 provided in the drain port 103 via the handle support member 23, the transmission member 4 and the like. Opening and closing is performed. Specifically, as shown in FIG. 8 (note that the side wall 102 is omitted in FIG. 8 and FIG. 9 described below), the extending direction of the knob portion 211 is a horizontal position (in the present invention). By rotating the operation handle 21 to a position corresponding to the first position, the drainage port 103 is closed, and as shown in FIG. 9, the extending direction of the knob portion 211 is a position (the second position of the present invention). The drainage port 103 is opened by rotating the operation handle 21 to the position corresponding to the position).

  In addition, in the present embodiment, the cutout portion 21A is located below the horizontal plane including the central axis of the operation handle 21 at the position (see FIG. 8) of the operation handle 21 when the drainage port 103 is in the closed state. Is configured to be located. In addition, when the drainage port 103 is in the open state, the opening of the communication hole 214 is configured to face downward at the position where the operation handle 21 is disposed (see FIG. 9).

  Next, the configuration of the handle support 22 including the handle support member 23 and a guide member 24 (corresponding to the second member of the present invention) provided on the back side of the handle support member 23 will be described. To do.

  As shown in FIG. 3 and the like, the handle support 22 is inserted into the overflow port member 5 and is indirectly attached to the overflow port 104 via the overflow port member 5. Further, the guide member 24 is formed of a predetermined resin (for example, POM), and as shown in FIGS. 5 and 10, an inner peripheral guide member 25 that contacts the back surface of the handle support member 23, and an inner peripheral guide member 25 The outer peripheral guide member 26 disposed on the outer periphery of the guide member 25 is combined.

  In addition, the handle support member 23 is formed of a predetermined resin (for example, POM or the like), and as shown in FIGS. A columnar portion 233 protruding toward the member 25 side is provided. Furthermore, a plurality of (three in the present embodiment) claw portions 233A are provided on the front end side of the columnar portion 233 at equal intervals along the circumferential direction, and the front end portion of each claw portion 233A is in the radial direction. It protrudes outward.

  In addition, as shown in FIGS. 11A and 11B, on the outer peripheral surface of the columnar portion 233, a concave first locked portion 236 extending along the longitudinal direction of the columnar portion 233, and the second A locked portion 237 is provided. In this embodiment, the 1st to-be-latched part 236 and the 2nd to-be-latched part 237 are each formed of a pair of recessed part, The circumferential direction between the both recessed parts which form the 1st to-be-latched part 236 And the interval along the circumferential direction between both concave portions forming the second locked portion 237 are made equal.

  Further, a stopper accommodating portion 234 and a groove portion 235 each having a curved groove shape are provided on the outer peripheral side of the columnar portion 233 on the back surface of the handle support member 23.

  In addition, a plurality of support legs 238 extending outward in the radial direction are provided on the outer peripheral side of the handle support member 23. A plurality of support leg portions 238 (four in this embodiment) are provided at equal intervals along the circumferential direction, and a foot portion 238A extending toward the guide member 24 is provided at the tip of the support leg portion 238. . In the state where the handle support member 23 and the guide member 24 are assembled, the foot portion 238A comes into contact with the outer peripheral guide member 26, so that the handle support member 23 and the operation handle 21 supported by the handle support member 23 are not rattled. It is to be prevented.

  As shown in FIGS. 10 and 12, the inner peripheral guide member 25 has an insertion portion 251 that penetrates the center thereof. Further, a locking portion 253 that can be locked to the first and second locked portions 236 and 237 is provided on the inner peripheral surface of the insertion portion 251 of the inner guide member 25. In the present embodiment, the locking portion 253 is formed by a pair of elastically deformable convex portions, and the interval along the circumferential direction between the both convex portions is the two forming the first locked portion 236. It is made equal to the space | interval between recessed parts, and the space | interval between both recessed parts which form the 2nd to-be-latched part 237. FIG. Further, a stopper 252 that protrudes toward the handle support member 23 is provided on a surface of the inner peripheral guide member 25 on the handle support member 23 side.

  Further, the inner peripheral guide member 25 is provided with a protruding wall portion 254 that protrudes toward the tangential direction of the outer peripheral surface thereof, and the surface of the protruding wall portion 254 on the connecting portion 263 side of the outer peripheral guide member 26 described later. Are provided with a pair of small protrusions 254A and 254B each projecting.

  Further, a curved groove portion 255 is provided on the outer surface of the inner peripheral guide member 25. In the present embodiment, the groove portion 255 is formed from the outer surface of the inner peripheral guide member 25 to the outer surface of the protruding wall portion 254 from the outer surface on the handle support member 23 side. Further, in a state where the handle support member 23 and the guide member 24 are assembled, the groove portion 255 is communicated with the groove portion 235 of the handle support member 23.

  In addition, as shown in FIGS. 10 and 13, the outer peripheral guide member 26 is provided on the outer periphery of the inner cylindrical portion 261 and the cylindrical inner cylindrical portion 261 located on the back side of the inner peripheral guide member 25. The outer cylinder part 262 and the some connection part 263,264,265 (refer FIG. 13) which connects the inner cylinder part 261 and the outer cylinder part 262 are provided.

  The inner cylinder part 261 includes a cylindrical insertion cylinder 261A at its center, and the insertion cylinder 261A is inserted into the insertion part 251 of the inner circumferential guide member 25.

  The connecting portions 263, 264, 265 are provided intermittently along the circumferential direction, and a gap between the connecting portions 263, 264, 265 serves as a drainage flow path from the overflow port 104. Further, the connecting portion 263 is formed between the standing wall portion 263A extending in the tangential direction of the outer peripheral surface of the inner cylinder portion 261, the pair of recessed recess portions 263B, 263C, and the both recess portions 263B, 263C. A transmission member insertion portion 263D that penetrates the portion 263 is formed. The inner circumferential guide member 25 and the outer circumferential guide member 26 are fitted to the recesses 263B and 263C of the outer circumferential guide member 26 by fitting the small protrusions 254A and 254B of the inner circumferential guide member 25 to the outer circumferential guide member 26. The inner peripheral guide member 25 is positioned. Further, in a state where the inner peripheral guide member 25 and the outer peripheral guide member 26 are assembled, the surface of the protruding wall portion 254 on which the groove portion 255 is formed is in contact with the standing wall portion 263A. Yes.

  Further, the handle support member 23 is assembled with the inner peripheral guide member 25 and the outer peripheral guide member 26, and the columnar portion 233 is inserted into the insertion portion 251 of the inner peripheral guide member 25 and the insertion cylinder 261 </ b> A of the outer peripheral guide member 26. The claw portion 233A provided in the columnar portion 233 is locked to the back surface of the outer peripheral guide member 26 (inner cylinder portion 261), so that both the guide members 25 and 26 (guide member 24) are supported. It is attached in a state that allows relative rotation.

  Further, in a state where the handle support member 23 is attached to the guide member 24, the stopper 252 of the inner peripheral guide member 25 is disposed in the stopper storage portion 234 of the handle support member 23. As a result, a range in which the handle support member 23 can rotate relative to the guide member 24 is set, and as a result, a range in which the operation handle 21 supported by the handle support member 23 can be rotated is set.

  In addition, in a state where the handle support member 23 is attached to the guide member 24, both the groove portions 235 and 255 formed in the handle support member 23 and the inner peripheral guide member 25, and the outer surface of the inner peripheral guide member 25 facing these grooves A curved guide passage 27 is formed between the (surface on the handle support member 23 side) and the outer surface of the outer peripheral guide member 26 (standing wall portion 263A). That is, the guide passage 27 is formed by combining a plurality of members (in this embodiment, the handle support member 23, the inner peripheral guide member 25, and the outer peripheral guide member 26).

  The transmission member 4 is disposed in the guide passage 27 through the transmission member insertion portion 263D. More specifically, the transmission member 4 is covered with a cylindrical outer skin 41 made of resin or the like, and is configured to be able to be pushed and pulled while contacting the inside of the outer skin 41. One end portion of the outer skin 41 is fixed to the outer peripheral guide member 26, and one end portion of the transmission member 4 exposed from one end of the outer skin 41 is disposed in the guide passage 27.

  In addition, one end of the transmission member 4 disposed in the guide passage 27 is fixed to the handle support member 23. More specifically, as shown in FIG. 11B, the groove portion 235 of the handle support member 23 is provided with an attachment placement portion 235A that is wider than other portions, and one end portion of the transmission member 4 is One end of the transmission member 4 is fixed to the handle support member 23 by fitting a fixed attachment for fixing (not shown) to the attachment placement portion 235A. Note that a return force to the operation mechanism 2 side is applied to the transmission member 4 by a return spring 83 (see FIG. 2 and the like) as a return force applying unit described later.

  Further, in the present embodiment, the stopper lid 9 can be moved upward by rotating the operation handle 21 counterclockwise and pushing the transmission member 4 by the handle support member 23. Then, the operation handle 21 is rotated to a position (second position) where the extending direction of the knob portion 211 is the vertical direction, and the locking portion 253 of the inner peripheral guide member 25 is moved to the second locked portion of the handle support member 23. By engaging with 237, the drainage port 103 is locked in the open state.

  On the other hand, by turning the operation handle 21 clockwise and pulling the transmission member 4 by the handle support member 23, the stopper lid 9 can be moved downward (in this case, the transmission member 4 is moved with respect to the transmission member 4). The return force by the return spring 83 also works). Then, the operation handle 21 is rotated to a position (first position) where the extending direction of the knob portion 211 is horizontal, and the locking portion 253 is locked to the first locked portion 236 of the handle support member 23. The drain port 103 is locked in the closed state. In other words, in the present embodiment, the handle support member 23 and the inner peripheral guide member 25 constitute a lock mechanism.

  The locking portion 253 may be concave, and the first and second locked portions 236 and 237 may be convex. Further, one of the locking portion and the first and second locked portions is provided on the inner peripheral surface of the insertion tube 261A of the outer peripheral guide member 26, and the locking portion and the first and first locking portions are provided on the outer peripheral surface of the columnar portion 233. The other of the two locked portions may be provided.

  Further, by reciprocating the transmission member 4 while contacting the guide member 24 in the curved guide passage 27, the operation direction of the transmission member 4 is converted to a direction different from the rotation direction of the operation handle 21. It has become.

  Further, the transmission member 4 extending from the operation mechanism 2 is disposed in the overflow pipe 108. The transmission member 4 is connected to the stopper cover driving mechanism 8 and the operation mechanism 2 in a space formed by the inner peripheral surface of the overflow port 104, the inner peripheral surface of the overflow pipe 108, and the inner peripheral surface of the drain port 103. Has been.

  In addition, of the end portions of the transmission member 4, the end portion (the other end portion) opposite to the operation mechanism 2 is in contact with the plug cover driving mechanism 8 provided at the drain port 103. The stopper cover driving mechanism 8 supports the stopper cover 9 and opens and closes the drain port 103 by moving the stopper cover 9 up and down relative to the bathtub 100 (see FIG. 2 and the like). Further, the plug lid driving mechanism 8 has a columnar shape, and the outer diameter thereof is smaller than the inner diameters of the overflow port 104, the overflow pipe 108, and the drain port 103 (details of the plug lid driving mechanism 8). Will be described later).

  Further, in the present embodiment, as described above, the outer diameter of the stopper cover driving mechanism 8 is made smaller than the inner diameter of the overflow port 104, etc., so that the operation mechanism 2, the transmission member 4, the stopper cover driving mechanism 8, Can be extracted from the overflow port 104 or assembled (a method for assembling the drain plug device 1 with respect to the bathtub 100 will be described in detail later). To do).

  Next, the insertion state of the handle support 22 with respect to the overflow port member 5 will be described.

  As shown in FIG. 13, the outer peripheral guide member 26 includes a hook-like portion 266 that protrudes radially outward at the end on one end side (the handle support member 23 side), and has a diameter on the other end side. A plurality of claw portions 267 projecting outward in the direction and elastically deformable along the radial direction are provided. In addition, a plurality of protrusions 268 that are intermittently formed in the circumferential direction are provided on the outer peripheral surface of the outer peripheral guide member 26 and between the hook-shaped portion 266 and the claw portion 267. It has been.

  On the other hand, as shown in FIG. 5, a plurality of recesses 53 formed continuously along the circumferential direction are provided on the inner peripheral surface of the overflow port member 5. A large number (for example, 60 or more) of the recesses 53 are provided, and the width of each recess 53 is set to a size that allows the outer edge of the projection 268 to be disposed.

  The handle support 22 is inserted into the overflow port member 5 by locking the protrusion 268 of the outer periphery guide member 26 to the recess 53 of the overflow port member 5 and the claw portion 267 of the outer periphery guide member 26 at the overflow port member. 5, the overflow port member 5 is held between the claw portion 267 and the hook-shaped portion 266 of the outer peripheral guide member 26. Note that by changing the concave portion 53 to which the protrusion 268 is locked, the arrangement position of the handle support 22 in the rotation direction can be adjusted, and consequently the arrangement position of the operation handle 21 in the rotation direction. It can be adjusted.

  In addition, the outer peripheral guide member 26 is provided with an extending portion 269 extending toward the overflow pipe 108 side (the side opposite to the handle support member 23). The extending portion 269 has a curved shape substantially along the inner peripheral shape of the overflow joint 109.

  Further, as shown in FIGS. 3 and 4, the upper inner peripheral surface of the overflow joint 109 is provided with a pair of restricting portions 109C projecting radially inward (in FIGS. Only the restriction portion 109C is shown). Both restricting portions 109 </ b> C are provided at symmetrical positions across a plane including the central axis of the overflow joint 109.

  When the handle support 22 is inserted into the overflow port member 5, the extending portion 269 of the outer peripheral guide member 26 is disposed between the pair of restricting portions 109C. The restricting portion 109C restricts the rotation of the extending portion 269 and hence the outer peripheral guide member 26, and as a result, the relative rotation of the handle support 22 (guide member 24) with respect to the overflow pipe 108 (overflow joint 109) is restricted. ing.

  Next, the configuration of the support shaft member 6 and the plug cover driving mechanism 8 provided at the drain port 103 will be described with reference to FIG.

  As shown in FIGS. 2 and 14, the support shaft member 6 is fixed to the drain port member 7 and holds the plug lid driving mechanism 8. The support shaft member 6 includes a cylindrical attachment tube portion 61 attached to the drain port member 7, a cylindrical support tube portion 62 located on the inner periphery of the attachment tube portion 61, the attachment tube portion 61, and the support tube portion 62. And an arm part 63 for connecting the two.

  The mounting cylinder 61 includes a plurality of mounting legs 611 that extend downward and have a lower end (tip) protruding radially outward. The mounting legs 611 are intermittent along the circumferential direction. Is provided. And the part located between each attachment leg part 611 among the attachment cylinder parts 61 is mounted on the protrusion-shaped hook part 73 provided in the inner peripheral surface of the drain port member 7, and the attachment leg part 611 of the attachment leg part 611 is provided. The support shaft member 6 is attached to the drain port member 7 by locking the lower end (tip portion) to a step provided on the inner peripheral surface of the drain port member 7.

  The support cylinder part 62 includes an upper protrusion part 621 and a lower protrusion part 622 that protrude inward in the radial direction on the inner peripheral surface thereof. The upper protruding portion 621 includes a pair of protrusions facing each other, is formed above the lower protruding portion 622, and sandwiches the plug lid driving mechanism 8 with the lower protruding portion 622. The stopper lid driving mechanism 8 is held by the support cylinder 62 by being sandwiched between the two protrusions 621 and 622.

  In addition, a plurality of arm portions 63 (four in this embodiment) are provided at equal intervals along the circumferential direction of the support cylinder portion 62, and a gap between the arm portions 63 passes through the drainage port 103. It is a drainage channel.

  The stopper cover driving mechanism 8 includes a plunger 81 and a plunger support cylinder 82 provided on the outer periphery of the plunger 81. A return spring 83 is accommodated between the outer peripheral surface of the plunger 81 and the inner peripheral surface of the plunger support cylinder 83.

  The return spring 83 is sandwiched between a stepped portion 81A provided on the outer periphery on the lower end side of the plunger 81 and a bent portion 82A that is formed on the upper end side of the plunger support tube 82 and bends radially inward. A return force directed downward is applied to the plunger 81.

  The plunger 81 includes a cylindrical lid shaft 811 having an open lower end, and an outer cylinder 812 disposed on the outer periphery of the lid shaft 811. In addition, a shock absorber spring 813 is provided inside the plunger 81, with its lower end contacting the lid shaft 811 and supporting the outer cylinder 812 with its upper end.

  The lid shaft 811 is provided with a hook-shaped spring contact portion 811A through which the other end portion of the transmission member 4 is inserted, protrudes radially outward from the lower end portion of the transmission shaft 4 and contacts the lower end portion of the shock absorber spring 813. Yes. Further, the lid shaft 811 moves upward with respect to the bathtub 100 when pressed by the other end of the transmission member 4, and moves downward with respect to the bathtub 100 due to a return force or the like from the return spring 83. Yes.

  The outer cylinder 812 includes a relatively small-diameter small-diameter portion 812A formed at an upper end portion thereof, and a relatively large-diameter large-diameter portion 812B positioned below the small-diameter portion 812A. The small diameter portion 812 </ b> A of the outer cylinder 812 is fitted into a cylindrical portion formed on the back surface of the stopper lid 9, so that the stopper lid 9 is supported by the outer cylinder 812. Further, the upper end portion of the shock absorber spring 813 is in contact with the step-like connecting portion 812C that connects the small diameter portion 812A and the large diameter portion 812B.

  The plunger support cylinder 82 includes a through hole 821 through which the transmission member 4 is inserted in the bottom surface portion thereof. In addition, the bottom surface of the plunger support cylinder 82 is provided with a cylindrical lid shaft support 822 that extends upward and has an inner circumferential space communicating with the through hole 821. The lid shaft support portion 822 is inserted into the lid shaft 811, and the lid shaft 811 can move up and down along the outer peripheral surface of the stopper lid support portion 822. Further, the other end of the transmission member 4 is disposed in the lid shaft 811 through the through hole 821 and the inner peripheral space of the lid shaft support portion 822. Further, the other end portion of the outer skin 41 provided on the outer periphery of the transmission member 4 is fixed to the through hole 821.

  As described above, the shock absorber spring 813 is disposed between the spring contact portion 811A of the lid shaft 811 and the connecting portion 812C of the outer cylinder 812, and is compressed and deformed when a force is applied from the plug lid 9. Thus, the force applied to the transmission member 4 from the stopper lid 9 is buffered.

  In addition, the stopper lid 9 supported by the plunger 81 (outer cylinder 812) is located above the drain port member 7 and the support shaft member 6, and includes a lid portion 91 made of resin such as POM, and elastic deformation. And an annular plug lid seal 92 made of a possible material (for example, resin, rubber such as EPDM rubber).

  The lid portion 91 has a shape whose surface is gently curved, and the plug lid seal 92 is provided on the back surface of the lid portion 91. In addition, the plug lid seal 92 is configured to become gradually thinner toward the outer peripheral side, and when the drainage port 103 is closed, the entire outer periphery of the stopper lid seal 92 is against the overhanging portion 72 of the drainage port member 7. To come into contact.

  In the above-described plug lid driving mechanism 8, the operation handle 21 is rotated and the transmission member 4 is pulled by the handle support member 23, whereby the plunger 81 and the plug lid 9 are moved downward as shown in FIG. The drainage port 103 is closed. In the state where the drainage port 103 is closed, the stopper lid 9 (the stopper lid seal 92) contacts the drainage outlet member 7, so even if a downward force is applied to the stopper lid 9, the force is not reduced. There is no transmission to the transmission member 4.

  On the other hand, by rotating the operation handle 21 and pushing the transmission member 4 by the handle support member 23, the other end of the transmission member 4 moves upward as shown in FIG. The lid shaft 811 is moved upward by being pushed by the lever. As the plug shaft 811 moves up, the shock absorber spring 813 and the outer cylinder 812 supported by the shock absorber spring 813 move up (that is, the plunger 81 moves up), thereby being supported by the outer cylinder 812. The stopper lid 9 moves up and the drainage port 103 opens. At this time, the drainage port 103 is locked in the open state by the locking portion 253 of the inner peripheral guide member 25 being locked to the second locked portion 237 provided in the handle support member 23.

  By the way, in the state where the drain outlet 103 is locked in the open state, the lid shaft 811 and the plug lid 9 are lifted by the transmission member 4, so that the force due to the weight of the lid lid 9, the lid shaft 811, etc. Will be added. However, the locking portion 253 with respect to the second locked portion 237 is set so that the locking force (locking force) when the locking portion 253 is locked with respect to the second locked portion 237 is sufficiently increased. Therefore, the transmission member 4 does not move back and the drain port 103 is kept open. The locking force (locking force) is a force when the locking portion 253 is released from the second locked portion 237 when a force is applied to the other end portion of the transmission member 4. It can be said that this is the minimum force necessary to release the lock in the open state of the drainage port 103. In the present embodiment, the locking force includes the force when the locking portion 253 is released from the second locked portion 237 when the force is applied to the handle support member 23 (operation handle 21), the transmission member 4 and This is the sum of the frictional force generated between the parts (outer skin 41 and guide member 24) arranged on the outer periphery of the transmission member 4.

  Further, in the present embodiment, when a downward force is applied to the plug lid 9 when the drainage port 103 is in the open state, a force is applied to the handle support member 23 via the transmission member 4. Therefore, when the stopper lid 9 is accidentally stepped on, if the force applied to the handle support member 23 is excessively large, the locking of the locking portion 253 with respect to the second locked portion 237 can be released.

  In view of this point, in the present embodiment, a gap is formed between the upper end portion of the lid shaft 811 and the upper end portion of the outer cylinder 812 along the axial direction of the lid shaft 811. As shown in FIG. 4, when the drainage port 103 is opened, when the plug lid 9 is subjected to a force from above and the lid lid 9 contacts the drain port member 7, the upper end portion of the lid shaft 811 and the outer cylinder 812 do not contact each other. The size is set. Furthermore, when the drainage port 103 is opened, a force is applied to the plug lid 9 from above, and the length of the shock absorber spring 813 when the plug lid 9 contacts the drainage port member 7 is longer than the contact length of the shock absorber spring 813. A shock absorber spring 813 is configured to be large. In other words, in the present embodiment, when the drain outlet 103 is opened (when locked in the open state), when a force is applied to the stopper lid 9 from above, the shock absorber spring in a state where the stopper lid 9 is in contact with the outlet member 7. A force greater than the compressive force of 813 (that is, the maximum repulsive force generated in the shock absorber spring 813 disposed in the plunger 81) is not applied to the other end of the transmission member 4.

  In addition, in this embodiment, the locking force (locking force) when the locking portion 253 is locked to the second locked portion 237 is greater than the maximum repulsive force of the shock absorber spring 813 applied to the transmission member 4. Is also set to be large. When the locking force is made larger than the maximum repulsive force of the shock absorber spring 813, the maximum repulsive force is applied to the transmission member 4 such as when the stopper lid 9 is accidentally stepped on. However, the situation that the drainage port 103 is accidentally closed without the latching portion 253 being detached from the second latched portion 237 is prevented.

  Next, a method for attaching the drain plug device 1 to the bathtub 100 will be described.

  First, a pipe 105 is provided at the drain port 103. That is, the drain port connection portion 107 is disposed on the back surface of the bottom wall portion 101, and the seal member 10 is placed on the flange portion 107 </ b> A of the drain port connection portion 107. Then, after disposing the seal member 11 on the outer periphery of the drain port member 7, the drain port member 7 is inserted from above with respect to the opening of the bottom wall portion 101, and the male screw portion provided on the outer periphery of the drain port member 7 71 is screwed into a female screw portion 107 </ b> B provided on the inner periphery of the drain port connection portion 107. As a result, the drain 105 is provided with the pipe 105, and the drain port member 7 is disposed at the drain 103.

  Separately from the arrangement of the pipe 105, an overflow joint 109 is connected to the overflow port 104. That is, after the packing 13 is disposed between the flange portion 109 </ b> A of the overflow joint 109 and the side wall portion 102, the overflow port member 5 having the annular member 12 disposed on the outer periphery is screwed into the overflow joint 109. Thereby, the overflow joint 109 is connected to the overflow port 104, and the overflow port member 5 is provided in the overflow port 104. Further, the overflow pipe main body 110 is fixed to the overflow joint 109 and the pipe 105. The overflow pipe main body 110 may be fixed to the pipe 105 or the overflow joint 109 before the pipe 105 is disposed or the overflow joint 109 is connected.

  Next, by inserting the support shaft 231 of the handle support member 23 into the mounting hole 212 of the operation handle 21, the operation handle 21 is assembled to the handle support member 23, and the operation mechanism 2, the transmission member 4, and the plug lid drive A mechanism (release) in which the mechanism 8 is integrated is inserted into the overflow pipe 108 from the overflow port 104 (Note that after the handle support 22 is inserted into the overflow port member 5 described below, the operation handle 21 is It may be assembled to the handle support member 23).

  Thereafter, the handle support 22 (operation mechanism 2) is inserted into the overflow port member 5 with one touch by engaging the claw portion 267 provided on the outer peripheral guide member 26 with the overflow port member 5. Note that when the handle support 22 is inserted into the overflow port member 5, an overflow in which the protrusion 268 of the outer peripheral guide member 26 is locked so that the extending direction of the knob portion 211 of the operation handle 21 is a predetermined direction. The recess 53 of the mouth member 5 is selected.

  In addition to the insertion of the handle support 22, the stopper cover driving mechanism 8 and the like are disposed in the drainage port 103. That is, the stopper cover driving mechanism 8 is taken out from the drain port 103 to the surface side of the bathtub 100 by a predetermined amount, and then the stopper cover driving mechanism 8 is inserted into the support cylinder portion 62 of the support shaft member 6. Next, the support shaft member 6 is attached to the drain port member 7 with one touch by engaging the mounting leg 611 of the support shaft member 6 with the drain port member 7. Finally, the outer cylinder 812 of the plug lid driving mechanism 8 is fitted into the cylindrical portion formed on the back surface of the plug lid 9, whereby the attachment of the drain plug device 1 to the bathtub 100 is completed.

  In the present embodiment, after removing the support shaft member 6 and the plug lid 9 from the plug lid driving mechanism 8 and then removing the handle support 22 from the overflow port member 5, the operation mechanism 2, the transmission member 4, and A mechanism in which the plug lid driving mechanism 8 is integrated can be extracted from the overflow port 104.

  In addition, the handle support 22 can be easily detached from the overflow port member 5 simply by pulling the handle support 22 from the overflow port member 5 (that is, with one touch). Further, the stopper lid 9 can be easily detached from the stopper lid driving mechanism 8 simply by pulling the stopper lid 9 away from the stopper lid driving mechanism 8. The shaft member 6 can be easily removed simply by pulling out the stopper cover driving mechanism 8 from the support shaft member 6. Therefore, when the operation mechanism 2 or the transmission member 4 is out of order, the mechanism in which the operation mechanism 2, the transmission member 4, and the plug lid drive mechanism 8 are integrated is connected to the surface of the bathtub 100 from the overflow port 104. It can be easily extracted. On the other hand, as described above, since the handle support 22 and the like can be attached to the overflow port member 5 with one touch, the operation mechanism 2, the transmission member 4, and the like after the repair and replacement of the operation mechanism 2, the transmission member 4, etc. And the stopper cover drive mechanism 8 can be easily assembled from the overflow port 104. It is not necessary to remove the overflow pipe 108, the overflow port member 5, the pipe 105, and the drain port member 7 when the operation mechanism 2 is extracted or assembled.

  As described above in detail, according to the present embodiment, the operation mechanism 2 is provided with the curved guide passage 27, and the transmission member 4 reciprocates in the guide passage 27. With the configuration, the operation direction of the transmission member 4 can be changed. Therefore, the operation mechanism 2 can be simplified, and the operation mechanism 2 can be downsized. Further, the operation handle 21 is rotatable, and the amount of protrusion of the operation mechanism 2 with respect to the outside (rear side) of the bathtub 100 can be made much smaller than when the operation button is used. As a result, the operation mechanism 2 can be attached to the side wall portion 102 of the bathtub 100 whose internal space is not so large.

  Further, since the operation direction can be changed only by reciprocating the transmission member 4 in the guide passage 27, the manufacturing cost can be reduced as compared with the case where a cam, a gear or the like is used. Furthermore, since the operation mechanism 2 can be downsized as described above, a large drainage passage from the overflow port 104 can be secured, and good drainage can be realized.

  In addition, in the present embodiment, the transmission member 4 is disposed inside the overflow pipe 108, and the inner peripheral surface of the overflow port 104, the inner peripheral surface of the overflow pipe 108, and the inner peripheral surface of the drain port 103. In the space to be formed (in other words, the space from the overflow port 104 to the drainage port 103 through the overflow pipe 108), the transmission member 4 is connected to the stopper cover driving mechanism 8 and the operation mechanism 2. . That is, according to the present embodiment, in order to connect the transmission member 4 to the operation mechanism 2 and the plug lid driving mechanism 8, there is no need to form an insertion hole in the overflow pipe 108 or the like. Therefore, the occurrence of water leakage due to the presence of the insertion hole can be prevented more reliably.

  Further, the operation handle 21 is rotatable, and is configured not to protrude greatly from the side wall 102 of the bathtub 100 not only when the drain port 103 is opened but also when the drain port 103 is closed (that is, always). ing. As a result, excellent appearance quality and safety can be realized.

  Furthermore, according to the present embodiment, the operation mechanism 2, the transmission member 4, and the plug lid drive mechanism 8 are integrated without removing the overflow pipe 108, the overflow port member 5, the drain port member 7 and the like from the overflow port 104 and the like. The mechanism formed can be extracted from the overflow port 104 from the surface side of the bathtub 100 or assembled. Therefore, even if the operation mechanism 2, the plug lid drive mechanism 8, etc. break down, trouble and labor required for repair or replacement can be reduced, and workability can be improved.

  Furthermore, in this embodiment, the locking portion 253 provided on the inner peripheral guide member 25 is locked to the first locked portion 236 or the second locked portion 237 provided on the handle support member 23. Thus, the drain port 103 is configured to be locked in the open / closed state. That is, the lock in the open / closed state of the drainage port 103 can be realized with a simple structure without using a complicated structure such as a thrust lock mechanism.

  Further, the handle support member 23 (ie, even when the operation handle 21 is rotated, or even when the locking portion 253 is locked to one of the locked portions 236 and 237). The columnar portion 233 is pressed against the inner circumferential guide member 25 (the insertion portion 251). Therefore, when the operation handle 21 is rotated, the position and backlash of the handle support member 23 can be prevented, and as a result, the position and backlash of the operation handle 21 supported by the handle support member 23 can be prevented. it can.

  In addition, the end of the transmission member 4 is fixed to the handle support member 23, and when the drainage port 103 is closed, the drainage port 103 can be closed by pulling the transmission member 4 with the handle support member 23. . Therefore, when there is a possibility that it is difficult to reliably operate the transmission member 4 with only the return force of the return spring 83, such as when foreign matter enters the guide passage 27, the transmission member 4 is operated more reliably. be able to. As a result, the drainage port 103 can be more reliably opened and closed.

  In addition, the guide passage 27 is configured by combining a plurality of members (the handle support member 23, the inner peripheral guide member 25, and the outer peripheral guide member 26). For this reason, the guide passage 27 having various shapes can be easily formed, and as a result, the operating direction of the transmission member 4 can be converted into various directions.

  Further, when attention is paid to the operation handle 21 and the handle support member 23 that supports the operation handle 21, the surface of the support portion 231 that is locked to the step portion 212 </ b> A (step portion 231 </ b> A) of the step portion 231 </ b> A (step portion 212 </ b> A). It is orthogonal to the insertion direction with respect to the mounting hole 212, and the flange portion 231A is firmly locked to the step portion 212A. Therefore, even when a force is applied to the operation handle 21 in the direction in which the operation handle 21 is pulled out from the support shaft 231, it is possible to effectively prevent the operation handle 21 from falling off the handle support member 23.

  On the other hand, the other end surface of the pin member 215 is pushed toward the inner peripheral side of the operation handle 21, and the hook portion 231A is unlocked from the step portion 212A by elastically deforming the hook portion 231A inward in the radial direction. In this state, the operation handle 21 can be easily detached from the support shaft 231. That is, according to the present embodiment, the operation handle 21 is effectively prevented from falling off during normal operation, while the operation handle 21 can be removed without any particular difficulty during cleaning or the like.

  Furthermore, the other end surface of the pin member 215 is always flush with the outer peripheral surface of the operation handle 21 or in a state of being immersed in the outer peripheral surface. Therefore, a situation in which the pin member 215 is unintentionally pushed is less likely to occur, and the unintentional dropping of the operation handle 21 can be prevented more reliably. In addition, since the protrusion caused by the pin member 215 is not formed on the outer peripheral surface of the operation handle 21, the appearance quality can be improved.

  In addition, since the protrusion 216 is inserted into the immersing portion 215A of the pin member 215, the relative movement of the pin member 215 toward the outer peripheral side of the operation handle 21 can be restricted. Accordingly, it is possible to more reliably prevent the pin member 215 from being detached from the operation handle 21.

  At the same time, the projecting portion 216 is inserted into the immersion portion 215 </ b> A, so that the pin member toward the central axis side of the mounting hole 212 rather than the position where the inclined portion 231 </ b> B is disposed when the support shaft 231 is inserted into the mounting hole 212. The movement of 215 can be restricted. Therefore, it is possible to prevent a situation in which the insertion of the support shaft 231 into the mounting hole 212 is hindered by being obstructed by one end of the pin member 215. As a result, coupled with the fact that the inclined portion 231B is provided at the tip of the flange portion 231A, it is easy to insert the support shaft 231 into the attachment hole 212 (that is, attachment of the operation handle 21 to the handle support member 23). Can be done.

  In addition, the opening of the communication hole 214 is configured to face downward at the position where the operation handle 21 is disposed when the drainage port 103 is in the closed state. Therefore, it becomes difficult to visually recognize the opening of the communication hole 214, and the appearance quality can be further improved.

  When attention is paid to the handle support 22 and the overflow port member 5 into which the handle support 22 is inserted, a large number of recesses 53 are provided on the inner peripheral surface of the overflow port member 5. Therefore, the amount of rotation of the operation handle 21 when the concave portion 53 to which the protrusion 268 of the outer peripheral guide member 26 is locked is shifted by one can be made extremely small. Therefore, the arrangement position of the operation handle 21 can be finely adjusted, and the operation handle 21 can be more reliably arranged at the expected position.

  Note that the screwing amount of the overflow port member 5 with respect to the overflow joint 109 differs depending on the thickness of the side wall portion 102, and the final arrangement position along the circumferential direction of the overflow port member 5 is not uniquely determined. Therefore, when a recess is provided only on a part of the inner peripheral surface of the overflow port member 5, the position of the recess changes depending on the final arrangement position of the overflow port member 5, and the above-described effects are not achieved. There is a fear. On the other hand, according to the present embodiment, since the concave portion 53 is continuously provided along the circumferential direction, even if a difference occurs in the final arrangement position of the overflow port member 5, the above-described operation is performed. The effect is surely achieved.

  Further, an extending portion 269 of the outer peripheral guide member 26 is disposed between the restricting portions 109 </ b> C provided in the overflow pipe 108 (overflow joint 109). Accordingly, the relative rotation of the handle support 22 with respect to the overflow pipe 108 can be restricted, and consequently the relative rotation of the overflow port member 5 into which the handle support 22 is inserted with respect to the overflow pipe 108 can be restricted. As a result, even when an excessive force is applied to the operation handle 21 when the operation handle 21 is rotated, the overflow port member 5 can be effectively prevented from loosening.

  Further, in the present embodiment, the overflow joint 109 is firmly fixed to the bathtub 100 by the frictional force between the packing 13 and the overflow joint 109 and the side wall portion 102. By restricting the relative rotation of 5, the relative rotation of the overflow port member 5 with respect to the bathtub 100 can also be restricted. As a result, when an excessive force is applied to the operation handle 21, it is possible to more reliably prevent a situation in which the operation handle 21 is displaced in the arrangement position in the rotation direction.

  Further, when attention is paid to the plug cover driving mechanism 8, the compression force (maximum repulsion) of the shock absorber spring 813 in a state where a force is applied to the plug cover 9 when the drain port 103 is opened and the plug cover 9 is in contact with the drain port member 7. Force) is not applied to the transmission member 4, and the locking force of the locking portion 253 with respect to the second locked portion 237 is larger than the maximum repulsive force of the shock absorber spring 813. It is configured. Therefore, in the state where force is applied to the transmission member 4 from the plug lid 9 (that is, the drain port 103 is opened), when the plug lid 9 is accidentally stepped on, the lock in the opened state is released, and the drainage The situation where the mouth 103 is closed can be prevented more reliably. As a result, it is possible to more reliably prevent a situation in which water is unintentionally collected in the bathtub 100.

  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 return spring 83 is provided inside the stopper cover driving mechanism 8, but the return spring 83 may be provided without being provided. Further, when the return spring 83 is provided, the return spring 83 may be provided inside the operation mechanism 2.

  (B) In the above embodiment, the locking portion 253 is provided on the inner periphery of the inner peripheral guide member 25, and the first engaged portion 236 and the second locked portion 237 are provided on the columnar portion 233 of the handle support member 23. However, the positions at which the locking portions and the first and second locked portions are provided are not particularly limited. Therefore, for example, as shown in FIGS. 17, 18 (a), 18 (b), and FIG. 19, the first and second locked portions having a concave shape on the inner peripheral guide member 25 side surface of the handle support member 23. It is good also as providing the part 236,237 and providing the convex latching | locking part 253 which can be elastically deformed in the surface at the side of the handle | steering-wheel support member 23 of the inner peripheral guide member 25. FIG.

  (C) In the above embodiment, the groove portions 235 and 255 are provided in the handle support member 23 and the inner peripheral guide member 25. For example, as shown in FIGS. 18 (a), 18 (b) and FIG. A groove portion 255 is provided only in the peripheral guide member 25, and between the groove portion 255 and the outer surface of the handle support member 23 (surface on the inner peripheral guide member 25 side) and the outer surface of the outer peripheral guide member 26 (standing wall portion 263A). The guide passage 27 may be formed.

  (D) In the above embodiment, the inner peripheral guide member 25 is provided with the stopper 252, and the handle support member 23 is provided with the stopper storage portion 234, as shown in FIGS. 17, 18 (a) and 18 (b). As described above, the handle support member 23 may be provided with the stopper 239, and the inner peripheral guide member 25 may be provided with the stopper storage portion 257.

  (E) In the above embodiment, one end portion of the transmission member 4 is fixed to the handle support member 23, but at least when the drainage port 103 is opened, the return force from the return spring 83 causes the handle support member 23 to move. The one end of the transmission member 4 may be configured to come into contact, and the one end of the transmission member 4 may be configured to be in an unfixed state with respect to the handle support member 23. Therefore, for example, as shown in FIGS. 18A and 18B, a protrusion 239P is provided on the handle support member 23, and as shown in FIG. You may comprise so that the one end part of the transmission member 4 may contact the projection part 239P with a return force. In this case, since it is not necessary to fix the end of the transmission member 4 to the handle support member 23, the structure of the operation mechanism 2 can be further simplified.

  (F) In the above embodiment, the guide passage 27 is formed by combining a plurality of members. For example, the inner peripheral guide member 25 and the outer peripheral guide member 26 are integrally formed and subjected to drilling or the like. Thus, the guide passage 27 may be provided in the interior.

  (H) In the above embodiment, the operation mechanism 2, the transmission member 4, and the plug lid drive mechanism 8 are assembled from the overflow port 104 and can be extracted, but the operation mechanism 2 and the like can be extracted from the drain port 103 and Assembly may be possible.

  (I) In the above embodiment, the drainage is performed through the notch portion 21A provided in the operation handle 21, but as shown in FIG. A cylindrical cover member 3 may be provided between the first and second cover members 102, and drainage may be performed through a plurality of water passages 32 provided intermittently on the lower half surface of the cover member 3. Thus, by providing a plurality of water passages 32 intermittently, the size of each water passage 32 can be configured not to be excessively large. As a result, it is possible to more surely prevent a finger or the like from entering the water inlet 32 and further improve safety.

  Further, as shown in the figure, the cover member 3 is inserted into the bathtub 100 by sandwiching a bowl-shaped sandwiched portion 31 formed at its end between the side wall portion 102 and the overflow port member 5. On the other hand, it is preferable to fix in a state in which relative movement is impossible. In this case, as shown in FIGS. 22 and 23, regardless of the position of the operation handle 21, the water inlet 32 is always hidden on the upper half surface of the cover member 3, and the water inlet 32 is hardly visible at all times. It can be. As a result, the appearance quality can be further improved.

  (J) In the above embodiment, a plurality of recesses 53 are continuously provided along the circumferential direction of the overflow port member 5, but a plurality of recesses 53 are provided intermittently along the circumferential direction of the overflow port member 5. Also good.

  (K) The configuration of the operation handle 21 and the plug lid driving mechanism 8 in the above embodiment is an example, and the configuration of the operation handle 21 and the plug lid driving mechanism 8 to which the technical idea of the present invention can be applied is particularly limited. It is not something.

  (L) 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 drainage port of a bathroom vanity, a drainage port of a sink, and the like.

  DESCRIPTION OF SYMBOLS 1 ... Drain plug apparatus, 2 ... Operation mechanism, 3 ... Cover member, 4 ... Transmission member, 5 ... Overflow port member, 8 ... Plug cover drive mechanism, 9 ... Plug cover, 21 ... Operation handle, 22 ... Handle support body, DESCRIPTION OF SYMBOLS 23 ... Handle support member, 24 ... Guide member, 25 ... Inner periphery guide member, 26 ... Outer periphery guide member, 27 ... Guide passage, 32 ... Water passage, 51 ... Male screw part, 53 ... Recessed part, 81 ... Plunger, 83 ... Return spring (returning force imparting portion), 100 ... tub (tank), 101 ... bottom wall portion, 102 ... side wall portion, 103 ... drain port, 104 ... overflow port, 108 ... overflow pipe, 109B ... internal thread portion, 109C ... Restricting part, 212 ... mounting hole, 212A ... step part, 214 ... communication hole, 215 ... pin member, 215A ... immersion part, 216 ... projection part, 231 ... support shaft, 231A ... collar part, 231B ... inclined part, 2 DESCRIPTION OF SYMBOLS 3 ... Columnar part, 235, 255 ... Groove part, 236 ... 1st to-be-latched part, 237 ... 2nd to-be-latched part, 253 ... Locking part, 268 ... Projection part, 269 ... Extension part, 811 ... Lid 812, outer cylinder, 813, shock absorber spring.

Claims (7)

A drain wall provided on the bottom wall, an overflow port provided on the side wall, and an overflow connected to the overflow port, having a bottom wall and a side wall standing on the bottom wall A drain plug device attached to a tank body comprising a pipe,
A stopper lid provided at the drain;
A stopper lid driving mechanism that supports the stopper lid and can open and close the drain port by moving the stopper lid up and down relative to the tank body;
Before SL has a rotatable operating handle along the surface of the side wall portion, an operation mechanism provided in the overflow port,
A wire, and a transmission member that transmits a driving force generated by the operation of the operation handle to the plug lid driving mechanism.
The overflow pipe communicates with the drain port, and the transmission member is disposed in the overflow pipe.
The transmission member is connected to the stopper cover driving mechanism and the operation mechanism in a space formed by an inner peripheral surface of the overflow port, an inner peripheral surface of the overflow pipe, and an inner peripheral surface of the drain port.
The operation Organization, together form a curved shape, has a guide member guide path, wherein the transmission member is disposed is provided,
The operation handle is configured to be rotatable relative to the guide member,
By the previous SL guide passage the transmission member reciprocates, the before and after the guide path, the direction of movement of the transmission member in a direction intersecting with the plane in the direction of the operating movement direction and parallel to the plane of the handle drain plug device according to claim Rukoto are converted to.   2. The drain plug according to claim 1, wherein the operation mechanism, the transmission member, and the plug lid driving mechanism can be extracted and assembled from at least one of the overflow port and the drain port. apparatus. A return force application unit that applies a return force toward the operation mechanism to the transmission member is provided,
The operation mechanism includes a handle support that supports the operation handle and is directly or indirectly fixed to the overflow pipe.
The handle support is provided with a handle support member that supports the operation handle and operates by the operation of the operation handle.
By the return force from the return force applying portion, at least when the drain outlet is open, the end portion of the transmission member is configured to be able to contact the handle support member,
The drainage port is opened by pressing the end of the transmission member with the handle support member in accordance with the operation of the operation handle, the pressing force applied to the end of the transmission member by the handle support member is released, and the return 3. The drain plug device according to claim 1, wherein the drain port is closed by operating the transmission member with a return force from a force applying unit. The operation mechanism includes a handle support that supports the operation handle and is directly or indirectly fixed to the overflow pipe.
The handle support is provided with a handle support member that supports the operation handle and operates by the operation of the operation handle.
The transmission member is fixed to the handle support member,
The drainage port is opened by pushing the transmission member with the handle support member as the operation handle moves, and the drainage port is pulled by pulling the transmission member with the handle support member as the operation handle operates. The drain plug device according to any one of claims 1 to 3, wherein the drain plug device is in a closed state. A first member having one of a one or a plurality of locking portions having a convex shape or a concave shape, and a first locked portion and a second locked portion that can be locked by the locking portion; A locking mechanism including a locking part and a second member having the other of the locked parts;
One of the first member and the second member operates by displacement of the operation handle,
The drain is closed when the operating handle is moved to a predetermined first position and the locking portion is locked to the first locked portion, and the operating handle is locked at a predetermined second position. 5. The drain port is locked in the open state by moving the locking portion to the second locked portion and locking the locking portion to the second locked portion. Drain plug device. The operating handle is supported by one of the members of the previous SL first member and the second member,
The one member is provided with a columnar portion that rotates as the operation handle rotates.
The other member of the first member and the second member is provided with an insertion portion through which the columnar portion is inserted,
One of the locking part and the two locked parts is provided on the outer peripheral surface of the columnar part, and the other of the locking part and the two locked parts is provided on the inner peripheral surface of the insertion part. The drain plug device according to claim 5, wherein the drain plug device is provided. The operation mechanism includes a plurality of members, and a groove is formed on at least one outer surface of the members.
7. The guide passage is formed between the groove and the outer surface of the member facing the groove by combining the members. The drain plug device according to claim 1.

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