JP2010001678A - Bathtub drainage structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathtub drain plug apparatus capable of fixing a connecting member to a bathtub without providing a flange member and adaptable to a dimensional error of a bathtub drain port. <P>SOLUTION: The bathtub drain port includes a hanging part formed to hang down from the upper end, and a first locking part formed projecting inward from the lower end of the hanging part. The drain plug apparatus includes a plug cover for opening/closing the bathtub drain port, and a connecting member connected between the plug cover and a wire for transmitting the motion of an operating part, and having a second locking part elastically deformed to be lockable to the first locking part. The second locking part has an upper locking part with its outer side face abutting on the inner surface of the hanging part while being placed on the upper part of the first locking part; a lower locking part located at the lower part of the first locking part and locked to the first locking part; and an intermediate locking part formed between the upper locking part and the lower locking part and locked in a state of forming a clearance without the outer side face abutting on the first locking part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bathtub drainage structure capable of opening and closing a bathtub drainage port by remote control.

  In general, a drain outlet for draining bathtub water is formed on the bottom of the bathtub. A drain plug lid for opening and closing the drain port is attached to the drain port of the bathtub, and an operation part is provided on the bathtub rim for easy opening and closing operation, and the drain plug lid can be opened and closed remotely. (For example, refer to Patent Document 1).

  The operation unit is connected to the wire, and the movement of the operation unit can be transmitted to the drain plug lid side. On the other hand, a holding member called a mechanical box is attached between the drain plug lid and the end of the wire on the drain plug side or between the operation section and the end of the wire on the operation section side. This mechanical box is provided with a holding mechanism capable of alternately holding the raised position and the lowered position according to the movement of the operation unit. For example, as in Patent Document 1, when a mechanical box is disposed between the drain plug lid and the drain plug side end of the wire, the drain plug lid also rises when the mechanical box is held at the raised position. When held at the position and opened, the drain plug lid is also held at the lowered position and closed. In addition, when a mechanical box is disposed between the operation unit and the operation unit side end of the wire, when the mechanical box is held at the lowered position, the drain plug lid is held at the raised position and opened. When it is in the state and is held at the raised position, the drain plug lid is held at the lowered position and is closed.

  Further, a connecting member that serves as a guide for the drain plug lid to move up and down at a predetermined position is required between the end of the wire on the drain plug lid side and the drain plug lid. The connecting member includes a tubular portion and a rod that can slide up and down inside the tubular portion, and the rod moves up and down inside the tubular portion so that the drain plug lid is positioned at a predetermined position. It can be moved up and down. When a mechanical box is disposed between the drain plug lid and the drain plug side end of the wire, this connecting member can serve as a connecting member in the mechanical box and can be used as a single member. is there.

  Since this connection member has a role of moving the drain plug lid up and down at a predetermined position, it needs to be fixed to the bathtub. The connection member of Patent Document 1 locks and fixes the connection member to a flange member attached to the bathtub drain from above. However, when a flange member is provided at the bathtub drain, there are problems that dirt easily adheres between the bathtub and the flange member, problems that it is difficult to clean the adhered dirt, and problems of deterioration in design due to the presence of the flange member. there were.

  Therefore, we tried to improve the cleanability and design by fixing the connecting member directly to the bathtub drain without providing a flange member, but the bathtub drain cannot be formed at the same time as forming the bathtub. Therefore, it is necessary to make a through hole by post-processing after molding. When the drainage port is drilled by post-processing after molding, there is a problem that a dimensional error is likely to occur and the connection member cannot be fixed to the bathtub drainage port.

In view of the above-described problems, the present invention provides a bathtub drainage structure that can directly fix a connecting member to a bathtub without providing a flange member, and can adapt to a dimensional error of the bathtub drainage port. With the goal.
Japanese Patent No. 36333336

  The aspect of this invention provides the bathtub drainage structure which can fix a connection member directly to a bathtub, without providing a flange member, and can adapt also to the dimensional error of a bathtub drain outlet.

  According to one aspect of the present invention, a bathtub drainage structure including a drainage plug device capable of opening and closing a bathtub drainage port by remote control, wherein the bathtub drainage port is formed to hang downward from an upper end. And a first locking part that protrudes inward from the lower end of the hanging part, and the drain plug device is capable of opening and closing the bathtub drain port and remotely opening and closing the plug lid. It is connected between the operation part to be operated, the wire that transmits the movement of the operation part, and the stopper lid, and can be locked to the first locking part by elastically deforming by a pressing operation from above the drain port. A connecting member having a second locking portion, wherein the second locking portion is placed on the upper portion of the first locking portion, and the outer surface is in contact with the inner surface of the hanging portion. An upper locking portion that is in contact with the upper locking portion and a lower portion of the first locking portion that locks with a lower portion of the first locking portion. It is formed between the side locking portion, the upper locking portion and the lower locking portion, and is locked in a state in which a gap is formed without the outer surface coming into contact with the first locking portion. A bathtub drainage structure having an intermediate locking portion.

  According to the aspect of the present invention, it is possible to provide a bathtub drainage structure that can directly fix a connection member to a bathtub without providing a flange member, and can adapt to a dimensional error of the bathtub drainage port.

Before describing the best mode for carrying out the present invention, the function and effect of the present invention will be described.
1st invention is the bathtub drainage structure provided with the drain plug device which can be opened and closed by remote control, and the bathtub drainage is formed so that the bathtub drainage may hang down from the upper end, A first locking portion that protrudes inward from the lower end of the hanging part, and the drain plug device is a plug lid that can open and close the bathtub drain, and an operation for remotely operating the lid opening A second part that can be locked to the first locking part by being elastically deformed by a pressing operation from above the drain port. A connecting member having a locking portion, wherein the second locking portion is placed on the upper portion of the first locking portion, and the upper surface of which the outer surface abuts on the inner surface of the hanging portion. A locking portion and a lower locking portion that is positioned below the first locking portion and locks with the lower portion of the first locking portion An intermediate locking portion formed between the upper locking portion and the lower locking portion and locked in a state in which a gap is formed without the outer surface coming into contact with the first locking portion. And a bathtub drainage structure characterized by comprising:

  According to this bathtub drainage structure, the connecting member can be directly fixed to the bathtub without providing a flange member, and a bathtub drainage structure that can be adapted to a dimensional error of the bathtub drainage port can be provided.

  Moreover, 2nd invention is an embodiment of 1st invention, The outer surface of the said upper side latching | locking part is latched in the state which contact | abutted with the inner surface of the said drooping part, The bathtub drainage structure is characterized in that the axial centers of the connecting members coincide.

  According to this bathtub drainage structure, the connecting member can be arranged at a predetermined position with respect to the bathtub drainage port by contacting the hanging part with a small dimensional error and the connecting member without any gap. From this, the bathtub drainage which can position a connection member so that a predetermined clearance gap may be formed between the 1st locking part and the 2nd locking part, and can adapt also to the dimensional error of a bathtub drain. A plug device can be provided.

  According to a third invention, in the embodiment of the first invention or the embodiment of the second invention, a plurality of the second locking portions are circumferentially spaced apart. This is a bathtub drainage structure.

  According to this bathtub drainage structure, the connection member can be locked to the bathtub drainage port with a small force, and the drainage at the time of bathtub drainage can be achieved by disposing the second locking portion at an interval. Can also be improved.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the outer diameter of the upper locking portion is larger than the inner diameter of the first locking portion and An outer diameter of the intermediate locking part is formed smaller than an inner diameter of the hanging part and the first locking part, and an outer diameter of the lower locking part is The bathtub drainage structure is formed to be larger than an inner diameter of the first locking portion and smaller than an outer diameter of the upper locking portion.

  According to this bathtub drainage structure, the connecting member can be directly fixed to the bathtub without providing a flange member, and a bathtub drainage structure that can be adapted to a dimensional error of the bathtub drainage port can be provided.

  Moreover, 5th invention is a bathtub drainage structure characterized by the said intermediate | middle latching | locking part being elastically deformed in a horizontal direction in any one of 1st-4th invention.

  According to this bathtub drainage structure, the connecting member can be directly fixed to the bathtub without providing a flange member, and the connecting member can be detached from the inside of the bathtub.

  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 an external perspective view of a bathtub according to an embodiment of the present invention. As shown in FIG. 1, the bathtub drainage structure according to the embodiment of the present invention includes a bathtub 1 and a drain plug device 100 attached to the bathtub 1.

  The bathtub 1 is a molded product, and extends from the upper end of the bathtub side surface 2 to the outward side, and the bathtub side surface 2 formed so as to rise upward from the entire circumference of the bathtub bottom surface 3. And a bathtub flange 4 formed on the surface.

  As shown in FIGS. 2 and 3, a bathtub drainage port 5 is formed on the bottom surface 3 of the bathtub by forming a through hole 27 for discharging hot water in the bathtub outside the tank by post-processing. . The bathtub drain 5 is formed so as to hang downward so as to be continuous with the bathtub bottom surface 3, and protrudes inward from the lower end of the suspending part 21, that is, toward the center side of the through hole 27. The first locking portion 22 is formed around the entire circumference of the through hole 27. Here, the drooping portion has a gentle inclined portion 25 required from the relationship of the draft angle of the mold at the time of molding, and a vertical surface-shaped vertical portion 26 formed between the inclined portion 25 and the first locking portion. . In addition, as above-mentioned, the 1st latching | locking part 22 is blocked | closed because the through-hole 27 is not formed at the time of shaping | molding, The role as a latching | locking part is formed by forming the through-hole 27 by post-processing. Can be fulfilled.

  Moreover, the opening for installing the operation part 10 which remotely operates the drain plug apparatus 100 mentioned later is formed in the bathtub flange 4 located in the washing place side.

  As shown in FIGS. 1 to 3, the drain plug device 100 is installed in a stopper lid 13 capable of watertightly closing or opening the bathtub drain outlet 5 and an opening formed in the bathtub flange 4. A push button type operation unit 10 for remotely controlling the opening and closing of the plug lid 13, a wire 11 disposed on the back side of the bathtub 1 and for transmitting the movement of the operation unit 10 to the plug lid 13 side, A connecting member 12 capable of transmitting the movement of the wire 11 to the plug lid 13 by screwing the lower side to the end of the wire 11 on the plug lid side and fitting the upper side to the back surface of the plug lid. And.

  The connecting member 12 is mainly formed integrally with a holding mechanism portion 30 capable of holding the plug lid 13 in the raised position and the lowered position, and extending outward of the holding mechanism portion 30. A second locking portion 44 that can lock and fix the connecting member 12 to the bathtub drainage port 5 by locking with the first locking portion 22 of the 5 is formed.

  The holding mechanism portion is formed separately from the cylindrical member 36 whose upper surface and lower surface penetrate, and the cylindrical member 36, and is attached to the inside of the cylindrical member 36 so as to be slidable in the vertical direction. And is fitted and fixed to the stopper lid 13 on the upper portion of the rod 35. Since the rod 35 is attached to the cylindrical member 36 by a thrust lock mechanism, the rod can be held alternately at the raised position and the lowered position.

  The configuration of this thrust lock mechanism will be described in detail. The rod 35 is coaxially provided with a fixed ring having engaging teeth on the upper surface and a rotating ring having engaged teeth on the lower surface. Further, locking teeth are formed on the inner surface of the cylindrical member 36. Furthermore, an urging member that urges the rod 35 in the downward direction (closing direction) is provided.

  Next, the operation of this thrust lock mechanism will be described in detail. First, in the operation from closing the plug lid 13 to opening the plug, the pushing force by the remote operation of the operation unit 10 is transmitted to the rod 35 via the wire 11. When the pushing force pushes the rod 35 against the urging force, the fixing ring pushes the rotating ring up above the locking teeth formed on the inner surface of the rod 35. At that time, the rotating ring rotates in the positive direction due to the meshing relationship between the engaging teeth of the fixed ring and the engaged teeth of the rotating ring. When the pushing force is lost, the rotating ring receives the urging force of the urging member and 35 starts to descend with the rotating ring. However, the engaged teeth are engaged with the engaging teeth formed on the inner surface of the rod 35 in the middle of descending, and stopped in the opened state to complete a desired opening operation.

  On the other hand, the operation from opening to closing of the plug lid 13 is as follows. The pressing force by the remote operation of the operation unit 10 pushes the rod 35 through the wire 11, and the fixing ring and the rotating ring are pushed up at the same time, and the engaging teeth of the fixing ring and the engaged teeth of the rotating ring are engaged with each other. Due to the relationship between these two teeth, the rotating ring further rotates by a small angle in the positive direction. When the pushing force is lost, the support shaft starts to descend together with the rotating ring under the urging force of the urging member. Here, when the engaged tooth engages with the sawtooth portion at the outer end of the locking tooth, the rotating ring further rotates in the forward direction, and the rotating ring is guided to the guide groove by the guide function of the sawtooth portion. It descends together with the rod 35 and shifts to the plugged state. As described above, the thrust lock mechanism is a mechanism that alternately repeats locking and unlocking each time the wire 11 is pushed.

  As shown in FIG. 4, on the outer side of the holding mechanism portion 30, a plurality of reinforcing portions 41 extending from the holding mechanism portion 30 toward the outer peripheral direction are formed integrally with the cylindrical portion. Further, an annular edge 42 formed in a circumferential shape is formed integrally with the reinforcing portion 41 at the outer side end portions of the plurality of reinforcing portions 41. Here, in order to discharge the hot water in the bathtub, it is necessary to form as large an opening as possible between the reinforcing portions 41.

  A second locking portion 44 that extends downward is formed on the annular edge portion 42. As shown in FIG. 3, the second locking portion 44 has an upper locking portion 47 placed on top of the first locking portion 22 and a first locking portion in a state where the second locking portion 44 is locked to the first locking portion 22. An intermediate locking portion 48 located on the side of the locking portion 22 and a lower locking portion 49 hooked on the lower portion of the first locking portion are formed, and the annular edge portion 42, the reinforcing portion 41, and the cylinder are formed. It is formed integrally with the shape portion 36.

  The connection member 12 is detachably attached to the first locking portion 22 formed in the bathtub drain port 5 from the inside of the bathtub 1 (above the bathtub drain port 5) by the second locking portion 44. Specifically, the intermediate locking portion 48 formed slightly thin is elastically deformed in the center direction (inward side) of the connecting member 12, so that the connecting member 12 is attached to or detached from the first locking portion 22. It becomes possible to do.

  Thus, according to the present invention, the connecting member 12 having the holding mechanism portion 30 can be directly locked to the bathtub drain port 5. Conventionally, a metal flange member is fastened and fixed from the upper and lower sides of the bathtub drain, and the connection member referred to in the present invention is locked and fixed to the flange member. In addition, there is a problem that a gap is generated between the flange member and the bottom surface of the bathtub, and dust is easily collected in the gap, and that it is difficult to clean, but according to the present invention, these conventional problems can be solved. it can.

  In the present invention, the problem that occurs when trying to connect directly to the bathtub drain 5 is also solved, and the problem and solving means will be described in detail below.

  As described above, since the through hole 27 for forming the bathtub drain 5 cannot be formed at the same time as the bathtub 1 is formed, the through hole 27 needs to be formed by post-processing after the bathtub formation. When the through-hole 27 is drilled in post-processing, the dimensional error of the through-hole 27 is large, so that even if the connection member 12 is locked and fixed to the bathtub drain 5, the error cannot be absorbed and the connection is made. There is a possibility that the member 12 cannot be locked.

  In order to eliminate the influence of the dimensional error of the through hole 27 to be drilled, the following measures are taken in the present invention.

  When the first locking portion 22 and the second locking portion 44 are locked, the outer surface of the upper locking portion 47 is in contact with the inner surface of the drooping portion 21 (specifically, the vertical portion 26). It is said that it can be attached with. By doing in this way, the through-hole 27 of the bathtub drainage port 5 and the axial center of the connection member 12 correspond, and it becomes possible to arrange | position a connection member in a predetermined position, without shifting | deviating.

  Furthermore, in a state where the first locking portion 22 and the second locking portion 44 are locked, the outer surface of the intermediate locking portion 48 and the inner surface (tip) of the first locking portion 22 do not come into contact with each other. The arrangement is such that a predetermined gap S is formed. By setting the gap S to be equal to or greater than the maximum error generated when the through hole 27 is drilled, the connecting member 12 can be directly and directly connected to the bathtub drain 5 for the through hole 27 within the error range. It can be locked.

  Next, the dimensional relationship between the first locking portion 22 and the bathtub drain 5 will be described in detail below. The outer diameter of the upper locking portion 47 arranged in a circumferential shape is larger than the inner diameter of the inner surface (tip) of the first locking portion 22 and the inner diameter of the hanging portion 21 (specifically, the vertical portion 26) in contact therewith. It is formed in the same way. Moreover, the outer diameter of the intermediate | middle latching | locking part 48 arrange | positioned circumferentially is formed smaller than the internal diameter (front-end | tip) of the hanging part 21 and the 1st latching | locking part 22. FIG. Furthermore, the outer diameter of the lower locking portion 41 formed in a claw shape is larger than the inner diameter of the first locking portion 22 and smaller than the outer diameter of the upper locking portion 47. By designing the 1st latching | locking part 22 and the bathtub drain port 5 with such a dimension, it becomes possible to latch the connection member 12 directly on the bathtub drain port 5 almost certainly.

  As described above, according to the present invention, it is possible to provide a bathtub drainage structure that can directly fix a connecting member to a bathtub without providing a flange member, and can adapt to a dimensional error of the bathtub drainage port. it can.

  In the above-described embodiment, not all of the outer surfaces of the plurality of intermediate locking portions 48 formed should be in contact with the inner surface (tip) of the first locking portion 22. For example, even if a part of the outer side surface 48 of the intermediate locking part 48 is in contact with the inner surface (tip) of the first locking part 22, it is affected by the processing dimension error of the through-hole 27 to be drilled. What is necessary is just to be able to be latched by the lower latching portion.

  In the above-described embodiment, the connection member 12 includes the holding mechanism 30. However, the connection member 12 includes only a function of guiding the rod 35 connected to the wire 11 in the vertical direction and holds the rod 35. The mechanism may be attached between the operation unit 10 and the operation unit side end of the wire 11. By attaching the holding mechanism part 30 to the operation part side, the drainage of the bathtub does not come into contact with the holding mechanism part, so that it is possible to prevent dirt and the like from adhering and preventing the locking mechanism from being hindered.

It is an external appearance perspective view of the bathtub which concerns on embodiment of this invention. It is sectional drawing showing the bathtub drainage structure which concerns on embodiment of this invention. It is a section perspective view showing bathtub drainage structure concerning an embodiment of the present invention. It is a top view showing the bathtub drainage structure concerning the embodiment of the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Bathtub, 2 Bathtub side surface, 3 Bathtub bottom surface, 4 Bathtub flange, 5 Bathtub drain, 10 Operation part, 11 Wire, 12 Connection member, 13 Lid stopper, 14 Watertight packing, 21 Hanging part, 22 1st latching part, 25 Inclined portion, 26 Vertical portion, 27 Through hole, 30 Holding mechanism portion, 35 Rod, 36 Cylindrical portion, 41 Reinforcement portion, 42 Annular edge portion, 44 Second locking portion, 47 Upper locking portion, 48 Intermediate engagement Stopping part, 49 Lower locking part, S Clearance

Claims (6)

A bathtub drainage structure equipped with a drain plug device that can be opened and closed remotely by a bathtub,
The bathtub drainage port includes a hanging portion formed so as to hang downward from the upper end, and a first locking portion formed to project inward from the lower end of the hanging portion,
The drain plug device is connected between a plug lid that can open and close the bathtub drain, an operation unit that remotely controls opening and closing of the plug lid, a wire that transmits movement of the operation unit, and the plug lid. A connecting member having a second locking portion that can be locked with the first locking portion by being elastically deformed by a pressing operation from above the drain port,
The second locking portion is
An upper locking portion in which the outer surface is in contact with the inner surface of the hanging portion in a state of being placed on top of the first locking portion;
A lower locking portion that is located at a lower portion of the first locking portion and locks with a lower portion of the first locking portion;
An intermediate locking portion formed between the upper locking portion and the lower locking portion and locked in a state where a gap is formed without the outer surface being in contact with the first locking portion; The bathtub drainage structure characterized by having.   The axial center of the bathtub drainage port and the connecting member coincide with each other by locking the outer surface of the upper locking portion in contact with the inner surface of the hanging portion. The bathtub drainage structure described.   3. The bathtub drainage structure according to claim 1, wherein a plurality of the second locking portions are circumferentially spaced apart from each other. The outer diameter of the upper locking portion is larger than the inner diameter of the first locking portion and is formed to be equal to the inner diameter of the hanging portion that comes into contact with the upper locking portion,
The outer diameter of the intermediate locking portion is formed smaller than the inner diameter of the hanging portion and the first locking portion,
4. The outer diameter of the lower locking portion is larger than the inner diameter of the first locking portion and smaller than the outer diameter of the upper locking portion. 5. The bathtub drainage structure described in the item.   The bathtub drainage structure according to any one of claims 1 to 4, wherein the intermediate locking portion is elastically deformed in a horizontal direction.   The bathtub drainage structure according to any one of claims 1 to 4, wherein the connecting member is detachable from the inside of the bathtub.

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