JP5923701B2 - Bath drain connection structure - Google Patents

Description

  The present invention relates to a connection structure for a bathtub drainage section.

  Conventionally, the attachment structure in the drainage part of a bathtub and a bathtub pan is known (for example, refer to patent documents 1).

  As shown in FIGS. 7 and 8, this type of drainage mounting structure includes a bathtub 110 and a bathtub pan 111 that receives the bathtub 110. The bathtub 110 includes a drain port 112 provided on the bottom surface of the bathtub 110, an open / close plug (not shown) provided in the drain port 112 so as to be openable and closable, and a release 114 that opens and closes the open / close plug. The bathtub pan 111 is provided with a drain opening 115 provided at a position corresponding to the drain port 112 of the bathtub 110, a lid 116 fixed to the bathtub pan 111 so as to cover the drain opening 115, and drainage provided on the lid 116. A communication hole 117 communicating with the port 112 is provided.

  According to this conventional attachment structure, when the bathtub 110 is attached to the bathtub pan 111, the bathtub 110 is placed from above the bathtub pan 111 as shown in FIG. At this time, the installer places the bathtub 110 to which the opening / closing plug and the release 114 are not attached on the bathtub pan 111 so as to communicate with the communication hole 117 of the bathtub pan 111. Thereafter, the installer inserts the release 114 into the release insertion hole 118 from above the lid portion 116 fixed to the bathtub pan 111. Then, a tool such as long-nose pliers is inserted into the drain port 112 of the bathtub 110, the tip of the release 114 is grasped, and the release 114 is pulled out from the drain port 112 of the bathtub 110 as it is. Thereafter, the release 114 is connected to the opening / closing stopper. In this state, an opening / closing plug is attached to the drain port 112.

JP 2001-295343 A

  As described above, in the conventional mounting structure, when the bathtub is installed, the lid is fixed to the bathtub pan, that is, the drainage opening is previously closed by the lid. For this reason, there is a problem that it takes much time for the installer to pass the release through the lid and connect it to the drain plug.

  This invention is made | formed in view of the said situation, The place made into the objective is providing the connection structure of the bathtub drainage part which is easy to construct in installing a pop-up type drain plug.

The connection structure of the bathtub drainage part of the present invention includes a bathtub, a drain opening provided on the bottom surface of the bathtub, an opening / closing plug provided to the drain opening freely openable and connected to the opening / closing stopper. A lid that is provided with a communication hole that covers the drainage opening and communicates the drainage opening and the drainage opening. And a release structure of the bathtub drainage part that passes through the communication hole and is folded under the lid part and penetrates the lid part up and down, and the lid part includes the lid A bathtub fixing part for fixing the part to the bathtub, and a rubber bush for holding the release vertically penetrating the lid part. The rubber bush is configured so that the bathtub is the bathtub. In the state before being installed in the bread The release of is intended to hold in position, the lower end of the tub fixing part is fixed to the lid portion, the upper end of the tub fixing part includes a fitting on which is inserted from above into the drain outlet, the drain It is fixed to the said bathtub by pinching | interposing with the lower metal fitting arrange | positioned under the opening | mouth and screwed to the said upper metal fitting .

  According to the connection structure of the bathtub drainage section of the present invention, it can be easily constructed when installing the pop-up drain plug.

In the bathtub drainage part of Embodiment 1, it is a sectional side view which shows immediately before installing a bathtub in a bathtub pan. It is a sectional side view of the bathtub drainage part of Embodiment 1. FIG. 3 is a plan view of a drain trap part of the first embodiment. It is a sectional side view of the washing place side trap part of Embodiment 1. It is a sectional side view of the bathtub drainage part of Embodiment 2. It is a top view of the drain trap part of Embodiment 2. It is sectional drawing of the conventional bathtub drainage part. It is sectional drawing of the conventional bathtub drainage part.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

(Embodiment 1)
The connection structure of the bathtub drainage part of Embodiment 1 includes the bathtub 1, the waterproof pan 5, and the drainage trap part 6 attached below the waterproof pan 5.

  The waterproof pan 5 includes a bathtub pan 51 (see FIG. 1) laid below the bathtub 1 and a washing pan 53 (see FIG. 4) serving as a washing place adjacent to the bathtub pan 51. Further, the waterproof pan 5 has a weir portion 54 (see FIG. 4) between the bathtub pan 51 and the washing place pan 53. The waterproof pan 5 may be a split type waterproof pan 5 in which the bathtub pan 51 and the washing place pan 53 are separated, or an integrated type in which the bathtub pan 51 and the washing place pan 53 are integrally formed. The waterproof pan 5 may be used.

  The bathtub pan 51 is provided with a drain opening 52 at a position corresponding to the drain port 14 of the bathtub 1. A drain trap portion 6 is attached to the drain opening 52. The drainage opening 52 has a circular shape in plan view. In FIG. 3, reference numeral 80 denotes a trap cover in which a substantially elliptical communication opening 83 is formed. The trap cover 80 is fitted in a drain opening 52 having a circular shape in plan view.

  As shown in FIG. 4, the washing area pan 53 is provided with a washing area side drain port 55 for draining hot water from the washing area at the bottom thereof. The drain trap part 6 is also attached to the washing ground side drain outlet 55. In addition, this drain trap part 6 is attached ranging over the drainage opening 52 by the washing-room side drain outlet 55 and the bathtub pan 51 side.

  The drain trap section 6 is a communication type drain trap that drains the hot water drained from the drain opening 52 on the bathtub 1 side by joining the hot water drained from the washing station side drain port 55. As shown in FIG. 3, the drain trap part 6 includes a bathtub side trap part 7, a washing place side trap part 9, and a communication path 61 that communicates these. The drain trap portion 6 is attached to the lower side (back side) of the waterproof pan 5.

  As shown in FIG. 1, the bathtub-side trap unit 7 includes a bathtub trap body 71 that receives drainage from the bathtub 1 and a bathtub-side inner cylinder 72 for attaching the bathtub trap body 71 to the bathtub pan 51. Yes.

  The bathtub trap body 71 includes a bathtub-side trap opening 73 that is connected to the drain opening 52 of the bathtub pan 51 and a bathtub-side outflow portion 74 that opens toward the washing area-side trap 9. The bathtub-side trap opening 73 includes a cylindrical portion 75 that opens upward, and a lower flange portion 76 that protrudes outward from the upper end of the cylindrical portion 75. A first screw portion (not shown) is formed on the inner peripheral surface of the cylindrical portion 75.

  The bathtub-side inner cylinder 72 includes a cylindrical portion 77 that is screwed inside the cylindrical portion 75, and an upper flange portion 78 that protrudes radially outward from the upper end of the cylindrical portion 77. Moreover, the bathtub side inner cylinder 72 has the receiving piece 79 which protrudes in a diameter direction at the lower end part. The cylindrical portion 77 has a second screw portion (not shown) that is screwed into the first screw portion on the outer peripheral surface thereof.

  In order to attach the bathtub side trap part 7 to the bathtub pan 51, it constructs as follows. The installer brings the lower flange portion 76 of the bathtub trap body 71 into contact with the lower surface of the peripheral edge portion of the drain opening 52 of the bathtub pan 51 through packing. In this state, the installer screws the bathtub-side inner cylinder 72 into the bathtub trap body 71. Then, the bathtub side trap part 7 clamps the periphery of the drainage opening 52 of the bathtub pan 51 between the upper flange part 78 and the lower flange part 76. Thereby, the bathtub side trap part 7 is fixed to the drain opening 52 of the bathtub pan 51.

  The bathtub-side trap portion 7 has a trap cover 80 attached to the inside of the bathtub-side inner cylinder 72. As shown in FIG. 3, the trap cover 80 covers a part of the drain opening 52 of the bathtub pan 51. As shown in FIGS. 1 and 2, the trap cover 80 includes an upright portion 81 fitted on the inner peripheral surface side of the bathtub-side inner cylinder 72 via a packing, and a cover protruding radially inward from the upright portion 81. Part 82. The lower end of the upright portion 81 is placed on the receiving piece 79 of the bathtub-side inner cylinder 72. As shown in FIG. 3, the cover 82 is provided with a substantially elliptical communication opening 83 at the center thereof. The communication opening 83 is closed at the same time when the bathtub 1 is placed on the bathtub pan 51 by a lid 4 described later fixed to the bathtub 1 side. As shown in FIG. 1, the cover portion 82 has a hanging piece 84 provided on the periphery of the opening of the communication opening 83. The hanging piece 84 protrudes downward and is provided over the entire circumference of the communication opening 83.

  As shown in FIG. 4, the washing area side trap unit 9 includes a washing area trap body 91 that receives drainage from the washing area, and a washing area side inner cylinder 92 for attaching the washing area trap body 91 to the washing area pan 53. .

  The washing place trap main body 91 includes a washing place side trap opening 93 that is connected to the washing place drain outlet 55 and an inflow portion 94 that opens toward the bathtub side trap 7. The washing-side trap opening 93 includes a cylindrical portion 95 that opens upward, and a lower flange portion 96 that protrudes outward from the upper end of the cylindrical portion 95. A first screw portion (not shown) is formed on the inner peripheral surface of the cylindrical portion 95.

  The washing-place-side inner cylindrical body 92 includes a cylindrical portion 97 that is screwed inside the cylindrical portion 77 and an upper flange portion 98 that protrudes radially outward from the upper end of the cylindrical portion 97. Moreover, the washing-place side inner cylinder 92 has a receiving piece 99 that protrudes in the radially inward direction and supports a trap cylinder 102 described later at the lower end thereof. The cylindrical portion 97 has a second screw portion (not shown) that is screwed into the first screw portion on the outer peripheral surface thereof.

  In order to attach the washing area side trap part 9 to the washing area pan 53, it is constructed as follows. The installer brings the lower flange portion 96 of the washing place trap body 91 into contact with the lower surface of the peripheral edge portion of the washing place drain outlet 55 of the washing place pan 53 via packing. In this state, the installer screws the wash-place side inner cylinder 92 inside the wash-place trap body 91. Then, the washing place side trap part 9 clamps the periphery of the washing place side drain outlet 55 of the washing place pan 53 between the upper flange part 98 and the lower flange part 96. Thereby, the washing place side trap part 9 is fixed to the washing place side drain outlet 55 of the washing place pan 53.

  In addition, the washing area side drain port 55 of the washing area pan 53 is formed in the inner surface of the recess 56 provided in the bottom of the washing area bread 53. A drainage lid 57 is provided in the recess 56 so as to be substantially flush with the washing area of the washing area pan 53.

  The washing place side trap section 9 includes a sealing section 100 that is provided inside the washing section trap body 91 to form a sealed water. The sealed water part 100 includes an outer cylinder part 101 protruding upward from the inner bottom surface of the washing place trap body 91 and a trap cylinder 102 having a lower end inserted inside the outer cylinder part 101. The outer cylinder part 101 has a communication port 104 that communicates the inside of the outer cylinder part 101 with the inflow part 94. The upper end of the trap cylinder 102 is connected in communication with the washing ground side drain outlet 55. The lower end of the trap cylinder 102 is separated from the inner bottom surface of the washing place trap main body 91.

  The washing place side trap part 9 is provided with the outflow pipe part 103 for draining, after making the bathtub 1 side drainage and the washing place side drainage merge. Outlet tube portion 103 is connected to a drain pipe (not shown).

  The communication path 61 communicates and connects the bathtub-side outflow part 74 of the bathtub-side trap part 7 and the inflow part 94 of the washing place-side trap part 9. The communication path 61 is configured by a bellows-like flexible communication pipe.

  When the hot water flows into the washing ground side drain port 55 or the drain port 14 of the bathtub 1, the hot water is stored until the liquid level inside the drain trap part 6 is positioned at the upper end height of the outer cylinder part 101. Thereby, sealed water is formed in both the washing place side trap part 9 and the bathtub side trap part 7. When hot water further flows in the state where the sealed water is formed, the hot water that has overflowed from the upper end of the outer tube portion 101 flows out toward the outlet tube portion 103 and is drained through the drain pipe.

  The bathtub 1 includes a storage portion 11 in which hot water is stored and a flange piece 12 that protrudes outward from the upper end of the storage portion 11. The bathtub 1 includes an apron portion 13 provided between the flange piece 12 and the dam portion 54 of the waterproof pan 5. A drain port 14 penetrating in the vertical direction is provided on the bottom surface of the bathtub 1. The drain opening 14 of the bathtub 1 is provided with an opening / closing stopper device 2 that closes the drain opening 14 so as to be freely opened and closed. The opening / closing device 2 is a so-called pop-up opening / closing device 21 and can be operated remotely.

  The opening / closing plug device 2 includes an opening / closing plug 21 for opening / closing the drain port 14, a mechanical box 22 for opening / closing the opening / closing plug 21, a release 23 connected to the opening / closing plug 21 via the mechanical box 22, and opening / closing in the release 23. An operating portion 24 provided at the end opposite to the stopper 21 is provided.

  The operation part 24 is provided in the flange piece 12 of the bathtub 1, for example. The operation unit 24 according to the present embodiment includes operation buttons. The operation unit 24 opens the open / close plug 21 by pressing, and closes the open / close plug 21 by pressing again. In other words, the operation unit 24 repeatedly opens and closes the opening / closing plug 21 each time the operation unit 24 is pressed by the user.

  The open / close plug 21 includes a plug portion 211 that closes the drain port 14 and an attachment portion 212 for attaching the plug portion 211 to the mechanical box 22. The opening / closing stopper 21 is attached to the mechanical box 22 via the attachment portion 212.

  The mechanical box 22 has a release 23 attached to the lower end and an open / close stopper 21 attached to the upper end. When the inner wire (not shown) of the release 23 is pushed in, the mechanical box 22 drives the opening / closing stopper 21 upward, thereby opening the drain port 14. Further, when the inner wire of the release 23 is pulled, the mechanical box 22 drives the opening / closing stopper 21 downward, thereby closing the drain port 14. In other words, the mechanical box 22 opens and closes the opening / closing plug 21 by inserting and pulling out the inner wire of the release 23. The mechanical box 22 is housed and disposed in the drain outlet fitting 3 attached to the drain outlet 14.

The drain outlet metal fitting 3 includes an upper metal fitting 31 that is inserted into the drain outlet 14 of the bathtub 1 from above and a lower metal fitting 34 that is disposed below the drain outlet 14 and is screwed to the upper metal fitting 31 . The upper metal fitting 31 has a cylindrical shape, and has an upper collar portion 32 protruding outward at the upper end thereof. The upper metal fitting 31 is provided with a first screw portion (not shown) on the outer peripheral surface thereof. The lower metal fitting 34 has a cylindrical shape, and has a lower collar portion 35 protruding outward at the upper end thereof. The lower metal fitting 34 is provided with a second screw portion (not shown) on the inner peripheral surface. The second screw portion of the lower metal fitting 34 is screwed into the first screw portion of the upper metal fitting 31 .

The drainage fitting 3 is attached as follows. The installer causes the lower metal fitting 31 to face the drain port 14 of the bathtub 1 and abuts the lower collar portion 35 of the lower metal fitting 34 on the lower surface of the bathtub 1. The installer inserts the upper metal fitting 31 to which the sister packing is attached into the drain outlet 14 and the lower metal fitting 34 and screws them together. Thereby, the drain outlet metal fitting 3 clamps the bottom face of the bathtub 1 with the lower collar part 35 and the upper collar part 32, and is thereby fixed to the bottom part of the bathtub 1. In addition, the drain outlet metal fitting 3 may not be a metal.

  The release 23 includes an outer tube and an inner wire disposed in the outer tube. The inner wire moves relative to the outer tube so as to move forward and backward. The release 23 has a first end attached to a mechanical box 22 provided at the drain port 14 of the bathtub 1, and a second end opposite to the first end attached to the operation unit 24. In the release 23, when the operation unit 24 is operated, the inner wire moves forward and backward, thereby driving the mechanical box 22.

  A lid 4 that covers the drain opening 52 of the bathtub pan 51 is fixed to the bathtub 1. The lid portion 4 of this embodiment covers a part of the drain opening 52. When the lid 4 is installed in the bathtub pan 51, the lid 4 is fitted into the communication opening 83 of the trap cover 80 and is flush with the upper surface of the trap cover 80. The lid portion 4 has a communication hole 41 that allows the drain port 14 of the bathtub 1 and the bathtub-side trap portion 7 to communicate with each other. The communication hole 41 is configured by a cylindrical channel 410 that opens in the vertical direction.

  The lid portion 4 is provided with a bathtub fixing portion 42 for fixing the communication hole 41 to the bathtub 1 in a state where the communication hole 41 communicates with the drain port 14 of the bathtub 1. Accordingly, the lid 4 is fixed to the bathtub 1 and is not fixed to the bathtub pan 51. The bathtub fixing part 42 of the present embodiment is configured by a bellows-like fixing cylinder 420 that protrudes upward from the upper surface of the lid part 4. The fixed cylinder 420 of the present embodiment is fixed to the bathtub 1 by sandwiching the upper end between the lower flange portion 35 of the lower fitting 34 of the drain fitting 3 and the lower surface of the bathtub 1. The fixed cylinder 420 is fixed to the lid portion 4 by engaging the lower end of the fixed tube 420 with a fixing piece 43 having an inverted L-shaped cross section provided on the lid portion 4. Thereby, the cover part 4 is being fixed to the bathtub 1 in the state which connected the drain outlet 14 of the bathtub 1 and the communicating hole 41 of the cover part 4. FIG.

  The lid portion 4 has an inner fitting portion 44 provided on the outer edge thereof. The inner fitting portion 44 is connected to the inner peripheral edge of the communication opening 83 of the trap cover 80. The inner fitting portion 44 is configured by a vertical piece 440 protruding downward. The vertical piece 440 is provided over the entire circumference of the lid portion 4. The vertical piece 440 is disposed to face the hanging piece 84 of the communication opening 83 of the trap cover 80. The inner fitting portion 44 is connected to the hanging piece 84 via a water stop material.

  The lid 4 has a release through-hole 45 for passing the release 23 in the vertical direction. The release through-hole 45 has a rubber bush 46 attached to the inside of the hole. The rubber bush 46 holds the release 23 in the release through hole 45. The release position of the release 23 passed through the release through hole 45 is held by a rubber bush 46.

  As shown in FIG. 2, the release 23 has a first end connected to the mechanical box 22, a second end is passed through the communication hole 41, and is folded under the lid portion 4. The lid 4 is passed through the release through-hole 45 from below to above. The second end of the release 23 is connected to an operation unit 24 provided on the flange of the bathtub 1.

  The bathtub 1 of the present embodiment having such a configuration is attached and installed on the bathtub pan 51 as follows, for example.

The installer installs the opening / closing device 2 in the bathtub 1 before being installed in the bathtub pan 51. The installer attaches the drain fitting 3 to the drain 14 of the bathtub 1. At this time, the upper end of the bathtub fixing portion 42 is sandwiched between the lower fitting 34 and the bathtub 1, and the upper fitting 31 and the lower fitting 34 are fastened in this state. The installer fixes the lid portion 4 to the lower end of the bathtub fixing portion 42.

  Thereafter, the installer connects the mechanical box 22 to the first end in a state where the first end of the release 23 is passed through the communication hole 41 of the lid portion 4 from below. Thereafter, the mechanical box 22 is disposed in the drain fitting 3.

  Next, the installer inserts the second end of the release 23 into the release through hole 45 of the lid portion 4 fixed to the bathtub 1 from below (see FIG. 1).

  In this state, the installer places the bathtub 1 above the bathtub pan 51. At this time, the bathtub 1 is placed on the bathtub pan 51 so that the lid 4 fixed to the bathtub 1 is fitted into the communication opening 83 of the trap cover 80. Then, the release 23 fixed to the bathtub 1 will be in the attachment state which passed the drain outlet, the bathtub side trap part, and the release through-hole 45 (refer FIG. 2).

  Thereafter, the installer connects the second end of the release 23 to the operation unit 24 provided on the flange portion of the bathtub 1. Then, the installer installs the apron portion 13 between the flange piece 12 and the weir portion 54.

  Thus, in the connection structure of the bathtub drainage part of the present embodiment, the bathtub fixing part 42 is provided on the lid part 4 provided with the release through-hole 45 through which the release 23 is inserted. For this reason, when installing the bathtub 1, the builder can pass the lid part 4 through the release 23 in advance while passing the lower part of the lid part 4 and turning it back. For this reason, in order to attach the release 23, the installer does not need to perform an operation of passing the release 23 through a narrow portion in the bathtub-side trap portion 7 after installing the bathtub 1, and simply installs the release 23. Can do. Thereby, the connection structure of the bathtub drainage part of this embodiment can improve workability | operativity.

  Moreover, since the release portion 23 is held via the rubber bush 46 in the lid portion 4 of the present embodiment, the bathtub 1 can be installed on the bathtub pan 51 in a state where the mounting position of the release 23 is fixed. That is, by holding the release 23 in a predetermined position before installation, it is possible to prevent the release 23 below the lid 4 from becoming long when the bathtub 1 is placed. Thereby, it can prevent that the release 23 bites between the cover part 4 and the trap cover 80 at the time of bathtub 1 installation.

(Embodiment 2)
Next, Embodiment 2 will be described with reference to FIGS. In addition, since this embodiment is the same as Embodiment 1 for the most part, the same code | symbol is attached | subjected in the same part, description is abbreviate | omitted, and a different part is mainly demonstrated.

  The connection structure of the bathtub drainage part of this embodiment is different from the structure of Embodiment 1 in that the lid part 4 also serves as the trap cover 80. Other structures are the same as those of the first embodiment.

  Similarly to the first embodiment, the lid portion 4 is provided with a release through-hole 45 for inserting the release 23 in advance before installing the bathtub 1. The lid part 4 is provided with a bathtub fixing part 42 for fixing to the bathtub 1. In addition, the structure of this bathtub fixing | fixed part 42 and the through-hole 45 for release is the same as that of Embodiment 1. FIG.

  The lid portion 4 of the present embodiment is configured to cover substantially the entire drainage opening 52 provided in the bathtub pan 51. The lid portion 4 of the present embodiment is provided with an elevation surface portion 81 for connecting to the bathtub-side inner cylinder 72 of the bathtub-side trap portion 7 on the outer peripheral edge thereof. A packing is disposed between the upright portion 81 and the inner peripheral surface of the bathtub-side inner cylinder 72. The lower surface portion 81 is configured such that the lower end thereof is placed on the receiving piece of the bathtub-side inner cylinder 72.

  Thus, since the cover part 4 serves as the trap cover 80, the connection structure of the bathtub drainage part of this embodiment can simplify a structure compared with Embodiment 1. FIG.

DESCRIPTION OF SYMBOLS 1 Bathtub 14 Drain outlet 2 Opening / closing stopper device 21 Opening / closing stopper 22 Mechanical box 23 Release 24 Operation part 3 Drain outlet metal fitting 31 Upper metal fitting 32 Upper collar part 34 Lower metal fitting 35 Lower collar part 4 Lid part 41 Communication hole 410 Cylindrical flow path 42 Bathtub fixing part 43 Fixing piece 44 Inner fitting part 45 Release through-hole 5 Waterproof pan 51 Bath pan 52 Drainage opening 53 Washing area pan 55 Washing area side drain outlet 56 Recess 57 Drain cover 6 Drain trap part 61 Communication path 7 Bath side trap part 80 Trap cover 81 Elevation part 82 Cover part 83 Communication opening 84 Drooping piece

Claims (1)

A bathtub,
A drain outlet provided on the bottom of the bathtub;
An open / close stopper provided at the drain port so as to be freely opened and closed;
A release connected to the open / close plug to drive the open / close plug;
A bathtub pan provided with a drain opening at a position corresponding to the drain outlet;
A lid portion that covers the drain opening and is provided with a communication hole that communicates the drain opening and the drain opening;
The release structure is attached to the bathtub drainage part that passes through the communication hole and is folded under the lid part and penetrates the lid part up and down,
In the lid,
A bathtub fixing part for fixing the lid part to the bathtub;
A rubber bush is provided to hold the release in a state of vertically penetrating the lid,
The rubber bush is to hold the release in a predetermined position in a state before the bathtub is installed in the bathtub pan .
The lower end of the bathtub fixing part is fixed to the lid part,
The upper end of the bathtub fixing portion is fixed to the bathtub by being sandwiched between an upper fitting inserted through the drainage port from above and a lower fitting arranged below the drainage port and screwed into the upper fitting. The bathtub drainage connection structure characterized by the above.

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