JP2010053673A - Mounting structure of drainage appliance to washbowl - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a drainage appliance capable of attaching the draining appliance onto a back side of a drain hole in the washbowl, without core misalignment. <P>SOLUTION: In the mounting structure for attaching the drainage appliance 9 onto the back side of the drain hole 3c in the washbowl 3, recessed parts 22, 22, 22 are formed on a rear surface of a bowl part 3a of the washbowl, and projecting parts 18c, 18c, 18c capable of being fitted into the recessed parts 22, 22, 22 are formed in a water cut-off collar part 18 of the drainage appliance 9. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mounting structure for attaching a drainage device to the back side of a wash bowl.

Conventionally, there exists a thing of the structure as disclosed by patent document 1 as this kind of drainage apparatus.
In the structure disclosed in Patent Document 1, the drainage device is attached to the back surface from below the drainage hole of the wash bowl.
JP 2002-266403 A

  In the structure disclosed in Patent Document 1, it is difficult to position the drainage device without misalignment with respect to the drainage hole of the wash bowl. When misalignment occurs, the drainage valve does not fit into the drainage hole, and the drainage hole There was a problem that water stop performance could not be secured.

An object of the present invention is to provide a structure for attaching a drainage device to a wash bowl that can attach the drainage device without misalignment, and the following measures have been taken in order to achieve at least a part of this object.
In the mounting structure for attaching the drainage device to the back side of the drainage hole of the wash bowl, the present invention forms a convex portion or a concave portion on the back surface of the wash bowl, and fits the convex portion or the concave portion on the drainage device side. The gist is to provide a concave or convex portion that can be used.

  When attaching the drainage device to the back side of the drainage hole of the wash bowl, the concave and convex portions are fitted, so that the drainage device can be attached to the backside of the drainage hole without misalignment. Since the shaft core is attached without being displaced, the drain valve is tightly closed to the drain hole, and the water stop performance can be secured. Further, when the hair catcher arranged in the drainage device is pulled upward, the hair catcher is not caught in the drainage hole.

In the attachment structure of the drainage device to the wash bowl of the present invention, an inclined prepared hole is formed on the back surface of the wash bowl, and a screw is screwed into the prepared hole from the back side of the drainage device. It can also be set as the structure which fixes the said drainage device.
In this way, the screw can be screwed into the lower hole from the back side of the drainage device, and the drainage device can be firmly fixed to the back surface of the wash bowl, and when the screw is screwed, the hole on the drainage device side with respect to the lower hole Even if the position of is slightly deviated, the drainage device can be fixed to the drainage hole without misalignment.

Moreover, in the attachment structure of the drainage device to the washbasin of the present invention, the convex portion or the recess formed on the washbasin side and the drainage device side is asymmetric with respect to the axis of the drainage hole of the washbasin. It is also possible to form three or more locations.
By doing so, the number of fitting points due to the fitting between the concave portion and the convex portion is increased, and the drainage device can be attached to the back side of the drainage hole more reliably while preventing misalignment.

Next, the best mode for carrying out the present invention will be described using examples.
FIG. 1 is a perspective configuration diagram of a washstand.
The wash basin 1 is configured by placing a wash bowl 3 on the upper surface of a cabinet 2 having a door 2a that can be opened and closed on the front surface.
The wash bowl 3 is composed of a bowl portion 3a having a drain hole 3c on the bottom side, and a back guard portion 3b that rises integrally substantially vertically on the back side of the bowl portion 3a.
A handle 4a having a faucet body on the back side and a water discharge port 4b are attached to the back guard part 3b, and an operation button part 5 is attached to the side of the handle 4a.

A drainage device 9 shown in FIG. 2 is attached from the back side of the drainage hole 3c of the wash bowl 3, and a hair catcher portion 7 shown in FIG. 2 is arranged in the drainage device 9 so that it can be pulled up and down from the drainage hole 3c side. Moreover, the pop-up valve 6 is arrange | positioned so that opening and closing is possible in the drain hole 3c.
FIG. 2 shows an exploded view of the member in this portion, and FIG. 3 shows the member in an enlarged manner. Furthermore, in FIG. 4, the longitudinal cross-sectional view of the attachment state of a member is shown.

From the back side of the bowl portion 3a of the wash bowl, the drainage device 9 is attached and fixed concentrically just below the drainage hole 3c. The drainage device 9 has a lower end connecting portion 17a via a cap nut 13. A release holding member 10 is connected, and a trap pipe 15 piped in the vertical direction in the cabinet 2 is connected to the lower end side of the release holding member 10 via a cap nut 14.
The release holding member 10 is formed with an inclined cylinder portion 10a that is integrally inclined, and a tip end portion 11a on the lower end side of the release 11 having the upper end connected to the operation button 5 is formed in the inclined cylinder portion 10a. The tip 11a of the release is connected to a swing member 12 that is swingable in the vertical direction.

  The operation button portion 5 is attached by fixing the fixing portion 5a to the back guard portion 3b of the wash bowl. By operating the operation button portion 5 by hand from the state shown in FIG. The swing member 12 swings upward via the tip portion 11a and pushes the lower end of the shaft portion 6a upward. As a result, the pop-up valve 6 in contact with the drain hole 3c is moved upward and drained. The hole 3c is configured to be opened.

  A shaft portion 6a is integrally formed so as to hang from the center of the lower surface of the pop-up valve 6. A hair catcher portion 7 and an overflow catcher 8 are integrally attached to the shaft portion 6a. Accordingly, as the pop-up valve 6 rises, the hair catcher portion 7 and the overflow catcher 8 are simultaneously moved upward. By picking up the pop-up valve 6 and pulling it upward, the hair catcher portion 7 and the overflow catcher 8 are moved to the bowl portion 3a. It can be taken out above.

The drainage device 9 is a reduced diameter portion 17 in which the lower end side of a cylindrical main body cylinder portion 16 extending in the vertical direction is reduced in diameter, and a connecting portion 17a is formed on the lower end side of the reduced diameter portion 17, The release holding member 10 can be attached by tightening the cap nut 13 on the male screw on the outer periphery of the connecting portion 17a.
Further, a waterstop portion 18 that extends integrally outward in a substantially horizontal direction is formed at the upper end of the main body cylinder portion 16 of the drainage device 9.
Further, an overflow hose connection portion 19 that protrudes integrally from the main body cylinder portion 16 in the lateral direction is formed below the waterstop portion 18. An overflow hose 21 can be connected to the overflow hose connection portion 19 via a cap nut 20, and the overflow water in the bowl portion 3 a flows into the drainage device 9 through the overflow hose 21. ing.

  The inner diameter of the inner peripheral surface 16 a of the main body cylinder portion 16 of the drainage device 9 is set to, for example, a diameter of 63 mm, and is set to be larger than the diameter of the drainage hole 3 c of the wash bowl 3. On the inner peripheral surface 16a, three to six ribs 16b, 16b, 16b are protruded inward by about 1 mm at intervals in the circumferential direction, and are respectively formed in the vertical direction.

  The waterstop 18 is recessed in a ring shape to form an O-ring groove 18a, and the O-ring O can be fitted into the O-ring groove 18a. A plurality of screw insertion holes 18b, 18b, 18b are vertically formed through the waterstop portion 18 outside the O-ring groove 18a at intervals in the circumferential direction. Further, convex portions 18c, 18c, and 18c projecting upward are formed on the outer side of the O-ring groove 18a of the waterstop portion 18, and the convex portions 18c, 18c, and 18c are connected to the axis of the drain hole 3c and Three or more are formed at positions that are asymmetric with respect to the axis of the main body cylindrical portion 16, and in this example, one convex portion 18c is formed on the upper side in the figure, and two convex portions 18c, 18c is formed.

In addition, three recessed parts 22, 22, and 22 are formed in the outer periphery of the drain hole 3c in the back surface position of the bowl part 3a aligned with the three projecting parts 18c, 18c, and 18c.
A plurality of pilot holes 23, 23, 23 are formed in advance on the outer periphery of the drain hole 3 c of the bowl portion 3 a at a position aligned with each screw insertion hole 18 b of the drainage device 9. Since the pilot holes 23, 23, 23 formed on the back side of the bowl portion 3a are formed when the bowl portion 3a is molded, each pilot hole 23 is the same as the mold removal angle when the bowl portion 3a is molded. It is formed to be inclined in the direction.
In addition, this pilot hole 23 is set to the diameter which can clamp | tighten the screw 24 of diameter 4mm, cutting a screw | thread. Further, the screw insertion hole 18b on the drainage device 9 side is set to have an inner diameter of approximately 6 mm into which the screw 24 can be loosely inserted.

  When the drainage device 9 is attached to the back side of the bowl portion 3a, the waterstop 18 is brought into contact with the back surface of the bowl portion 3a while the O-ring O is fitted in the O-ring groove 18a. The main body cylinder portion 16 is aligned with the back side, the screw insertion holes 18b are aligned with the respective lower holes 23, and the screws 24 are tightened into the lower holes 23 from below the respective screw insertion holes 18b. That is, the screw 24 can be tightened while cutting the screw in the pilot hole 23 to fix the waterstop 18 to the back side of the bowl 3a in a watertight manner.

Since the pilot hole 23 is inclined in accordance with the angle of demolding at the time of forming the bowl portion 3a, a horizontal component acts when the screw 24 is tightened, and the drain hole 3c and the main body The axial center of the cylindrical portion 16 is displaced and easily misaligned. Also, when the positions of the pilot hole 23 and the screw insertion hole 18b are misaligned, misalignment easily occurs. The protrusions 18c, 18c, 18c protruding to the appliance 9 side are fitted into the recesses 22, 22, 22 formed on the back side of the bowl part 3a, respectively, so that the misalignment when the screw 24 is fastened is fixed. It is configured to prevent it.
Accordingly, misalignment is prevented by fitting the convex portion 18c and the concave portion 22, and the main body cylindrical portion 16 of the drainage device 9 can be fixed coaxially directly below the drainage hole 3c. When the hair catcher portion 7 and the overflow catcher 8 are inserted therein, the integrated pop-up valve 6 is fitted into the drain hole 3c exactly.

At this time, the outer periphery of the hair catcher portion 7 is substantially in contact with the ribs 16b, 16b, and 16b formed on the inner peripheral surface 16a of the main body cylinder portion 16, and the inside of the main body cylinder portion 16 of the hair catcher portion 7 is reached. There is no backlash. Further, the overflow catcher 8 is arranged in a substantially contact manner on the inner periphery of the reduced diameter portion 17.
When the hair catcher part 7 is pulled out together with the pop-up valve 6 above the drain hole 3c, the rib 16b serves as a guide, and the hair catcher part 7 is not caught and can be pulled out smoothly. is there.
If the number of ribs 16b is two, two or more are necessary because it is not stable when the hair catcher unit 7 is attached or detached. However, if there are seven or more ribs 16b, dust tends to accumulate on the upper surface of each rib 16b. The number is suitably 3-6.

  In this way, the center tube portion 16 is prevented from being misaligned with respect to the drain hole 3c, and the waterstop portion 18 of the drainage device 9 is fixed in a watertight manner on the back side of the bowl portion 3a, so that the drainage is discharged on the back side of the bowl portion 3a. The metal fitting 9 can be connected, so that dirt does not easily accumulate at the joint portion. Moreover, since the main body cylinder portion 16 of the drainage device 9 is formed to have a larger diameter than the drainage hole 3c, the inside of the main body cylinder portion 16 can be cleaned well, and the drainage device 9 is cleaned. It will be easy.

  Moreover, since the release holding member 10 and the overflow hose 21 are connected to the drainage device 9 via the cap nuts 13 and 20, the maintainability is improved by turning the cap nuts 13 and 20 by hand. Become.

It is a perspective view of a washstand. It is a disassembled perspective block diagram of the member attached to the drainage hole of a wash bowl. FIG. 3 is an enlarged perspective configuration diagram of a main part of FIG. 2. It is a longitudinal cross-sectional block diagram of the state which attached and fixed the drainage device to the back side of the drainage hole of a wash bowl.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing stand 2 Cabinet 3 Washing bowl 3a Bowl part 3b Back guard part 3c Drain hole 5 Operation button part 6 Pop-up valve 6a Shaft part 7 Hair catcher part 8 Overflow catcher 9 Drainage device 10 Release holding member 11 Release 12 Swing member 13, 14, 20 Cap nut 16 Body cylinder portion 16a Inner peripheral surface 16b Rib 17 Reduced diameter portion 17a Connection portion 18 Water stop flange 18a O-ring groove 18b Screw insertion hole 18c Protrusion portion 19 Overflow hose connection portion 21 Overflow hose 22 Recess portion 23 Bottom Hole 24 screw

Claims (3)

In the mounting structure that attaches the drainage device to the back of the drainage hole of the wash bowl,
While forming a convex or concave portion on the back surface of the wash bowl,
A structure for attaching the drainage device to the wash bowl, wherein the drainage device side is provided with a recess or projection that can be fitted into the projection or recess. An inclined prepared hole is formed on the back surface of the wash bowl, and a screw is screwed into the prepared hole from the back side of the drainage device to fix the drainage device to the wash bowl. Item 2. A structure for attaching a drainage device to a wash bowl according to item 1. The convex part or recessed part formed in the said wash bowl side and the drainage device side is formed in three or more places in the position which becomes astigmatism with respect to the axis line of the drainage hole of the said wash bowl. Or the attachment structure of the drainage device to the wash bowl of Claim 2.

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