JP5519903B2 - Overflow pipe fitting mounting structure - Google Patents

Description

  The present invention relates to an attachment structure for an overflow pipe fitting, and more particularly to a technique for attaching an overflow pipe fitting to an opening of a wash bowl such as a vanity.

  In general, a wash bowl is a tank body for storing and draining water therein, and is provided with a drain outlet at the bottom and an overflow opening near the upper edge. The opening is indispensable for the wash bowl, and a fitting for an overflow pipe that is piped on the back of the wash bowl is attached to the opening (see, for example, Patent Document 1).

  By the way, the mouthpiece of the overflow pipe is attached to the opening of the wash bowl by various methods. For example, as shown in FIG. The method of fixing with is common.

However, the wash bowl 1 made of earthenware has a smooth surface 1a, but the back surface 1b on the opposite side usually has an uneven surface shape. There is a possibility that a gap S is generated between the two and the overflow water flowing from the opening 2 leaks from the gap S to the outside. In order to prevent this, for example, the back surface 1b of the wash bowl 1 may be smoothed or a water-stopping material such as silicon may be used, but there is a problem that the number of constructions increases. Further, since the fitting 4 'is fixed to the wash bowl 1 with screws, it is necessary to embed nuts in the wash bowl 1 or to increase the thickness of the wash bowl 1 to increase the strength. For this reason, there exists a problem that the shaping | molding cycle of the wash bowl 1 becomes long. Furthermore, since dirt easily accumulates in the opening 2 of the wash bowl 1, for example, a cosmetic ring 12 shown in FIG. There is also a problem that it takes time to attach the decorative ring 12 which is a member different from 4 ′.
JP 2007-120202 A

  The present invention has been invented in view of the above-described conventional problems, and it is not necessary to fix or bond the mouth fitting to the wash bowl, thereby greatly reducing the number of constructions and the back of the wash bowl. Even without water stoppage on the side, water leakage to the back side of the wash bowl can be reliably prevented, and the wash bowl thickness can be evenly reduced, thereby shortening the wash bowl molding cycle. It is an object of the present invention to provide an attachment structure for a cap portion of an overflow pipe.

In order to solve the above-mentioned problem, the present invention is a structure in which a mouth fitting 4 of an overflow pipe 3 is attached to an overflow opening 2 of a wash bowl 1, and the mouth fitting 4 includes a ring-shaped decorative cover portion 5, It comprises a base body portion 6 that is connected to the overflow pipe 3 on the back surface 1b side of the wash bowl 1 and is bent in a substantially L shape when viewed from the side, and the decorative cover portion 5 is a surface of the wash bowl 1 A flange portion 5a arranged on the 1a side and a cover side connecting tube 5b inserted into the opening 2 of the wash bowl 1 are integrally formed, and the base body portion 6 is formed of the cover side connecting tube 5b. A body-side connecting tube 6b that can be connected by inserting a portion protruding to the back surface 1b side of the wash bowl 1 and a contact portion 6a that can come into contact with the back surface 1b of the wash bowl 1 are integrally formed, On the outside of the main body side connecting cylinder 6b A boss 6d for forming a hole 6c is provided, and a water-stopping packing 11 is sandwiched between the rear end of the cover side connection tube 5b and the main body side connection tube 6b, and the flange portion 5a of the decorative cover portion 5 and the base body portion The back surface 1b side of the wash bowl 1 provided in the portion located in the opening 2 of the cover side connecting tube 5b with the abutment portion 6a of the face 6 facing the front and back surfaces 1a, 1b of the wash bowl 1 respectively. The decorative cover portion 5 is drawn toward the base body portion 6 side by fastening the screw hole portion 5c that opens to the screw body and the screw hole portion 6c provided in the main body side connection cylinder 6b with the assembly screw 7, so that the decorative cover The part 5 and the base body part 6 are attached so that the wash bowl 1 is sandwiched.

  With such a configuration, the wash bowl 1 can be removed from the front and back surfaces 1a and 1b by simply fastening the decorative cover portion 5 and the base body portion 6 with the screws 7, and the base body portion 6 and the decorative cover portion 5 together. At the same time, the cover side connecting cylinder 5b and the main body side connecting cylinder 6b are connected to complete the assembly of the cap 4 and, at the same time, the mounting operation of the cap 4 to the opening 2 is completed. Therefore, there is no need for screw fixing to the wash bowl 1 as in the prior art, and there is no need to separately bond the decorative cover portion 5 to the opening 2 side. Further, since it is not necessary to fix the mouthpiece 4 to the wash bowl 1, the wash bowl 1 can be formed with a uniform thickness. Further, since the tightening force of the screw 7 acts in the direction of pulling the decorative cover portion 5 toward the base body portion 6, the adhesion between the decorative cover portion 5 and the surface 1 a of the wash bowl 1 becomes good, and the wash bowl 1 Since the surface 1a side has a water-sealing structure, water leakage to the back surface 1b side of the wash bowl 1 can be reliably prevented.

  Further, between the decorative cover portion 5 and the surface 1 a of the wash bowl 1, a waterproof seal 10 that receives the tightening force of the screw 7 and adheres closely to the flange portion 5 a of the decorative cover portion 5 and the surface 1 a of the wash bowl 1. In this case, the water sealing effect on the surface 1a side of the wash bowl 1 by the water-stopping packing 10 can be further enhanced by using the tightening force of the screw 7.

  The present invention assembles a wash bowl with screws so as to sandwich the wash bowl from the front and back surfaces of the base body part and the decorative cover part that constitute the metal fittings, thereby fixing the screw to the wash bowl as in the past and the decorative cover part. Since no separate bonding is required, the number of installations can be significantly reduced, and the water-sealing structure on the front side of the wash bowl can reliably prevent water leakage to the back side of the wash bowl, so There is no need to stop the water on the back side of the bowl, and the thickness of the wash bowl can be made uniform and the molding cycle of the wash bowl can be shortened.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  FIG. 1 is a plan view for explaining a state in which the mouthpiece 4 used in the embodiment of the present invention is attached to the overflow opening 2 of the wash bowl 1, FIG. 2 (a) is a side sectional view, ) Is a front view.

  The fitting 4 of the overflow pipe 3 is made of, for example, a stainless material that is not easily rusted and corroded, and includes a ring-shaped decorative cover portion 5 and a cylindrical mouthpiece main body portion 6.

  As shown in FIG. 3, the decorative cover portion 5 disposed on the surface 1 a side of the wash bowl 1 is formed in the same horizontally long ring shape as the horizontally long opening 2 of the wash bowl 1. The decorative cover portion 5 includes a flange portion 5a that covers the periphery of the opening 2 from the surface 1a side of the wash bowl 1, and a cover side connecting tube that is inserted into the opening 2 of the wash bowl 1 and connected to the base body portion 6. 5b is integrally formed. As shown in FIGS. 3A and 3D, the left and right outer sides of the cover-side connecting cylinder 5b are thick portions to form screw holes 5c, and each screw hole 5c is formed on the rear side (the base). Opening toward the main body 6 side). The length of the cover-side connecting tube 5b is such that the rear end of the cover-side connecting tube 5b protrudes behind the back surface 1b of the wash bowl 1 with the flange portion 5a contacting the surface 1a of the wash bowl 1. 6 is set to a length that fits into the inside.

  On the other hand, as shown in FIG. 4, the base body 6 disposed on the back surface 1b side of the wash bowl 1 is formed in the same horizontally long cylinder shape as the cover side connection cylinder 5b, and is substantially L-shaped when viewed from the side. The upper end of the overflow pipe 3 is connected to the lower end portion 6e thereof. The overflow pipe 3 is composed of, for example, a bellows-like flexible pipe, and its lower end is connected to, for example, a drain trap (not shown) of the wash bowl 1.

  A main body side connecting tube 6 b is provided at the upper end of the base body 6. The main body side connecting cylinder 6b has a dimension that can be connected in a watertight manner to the rear end of the cover side connecting cylinder 5b. A boss 6d forming a screw hole portion 6c shown in FIG. 4A is provided on the left and right outer sides of the main body side connection tube 6b. The screw hole portions 6c are provided on the left and right sides of the cover side connection tube 5b. Respectively corresponding to the screw hole portions 5c. Further, on the outer periphery of the base body portion 6, a collar-like contact portion 6 a that can contact the back surface 1 b of the wash bowl 1 is projected. The abutment portion 6 a serves to prevent the base body portion 6 from being pulled into the opening 2 by hitting the back surface 1 b of the wash bowl 1 when the screw 7 is fastened.

  Further, in this example, as shown in FIGS. 1 and 2, the flange of the decorative cover portion 5 receives the tightening force of the screw 7 between the flange portion 5 a of the decorative cover portion 5 and the surface 1 a of the wash bowl 1. A ring-shaped water-proof packing 10 that is in close contact with the portion 5a and the surface 1a of the wash bowl 1 is interposed. Further, a ring-shaped water-stopping packing 11 that receives the tightening force of the screw 7 is interposed between the cover-side connecting cylinder 5b and the main-body-side connecting cylinder 6b. These water-proof packings 10 and 11 are made of a material that has elasticity and is not easily rusted and corroded, such as rubber.

  Next, an example of a procedure for attaching the mouthpiece 4 to the opening 2 of the wash bowl 1 will be described.

  First, the flange portion 5a of the decorative cover portion 5 and the abutting portion 6a of the base body portion 6 are respectively opposed to the front and back surfaces 1a and 1b of the wash bowl 1, and the flange portion 5a and the front surface 1a of the wash bowl 1 are formed. The water blocking packing 10 is sandwiched between them. At this time, the rear end of the cover-side connecting cylinder 5b is fitted into the base body 6 and faces the front end of the main-body connecting cylinder 6b, and the screw hole 5c outside the cover-side connecting cylinder 5b is located outside the main body-side connecting cylinder 6b. It comes to face the screw hole 6c. Then, with the water-stopping packing 11 sandwiched between the rear end of the cover side connecting cylinder 5b and the front end of the main body side connecting cylinder 6b, an assembly screw 7 is screwed through the screw hole 6c from the back surface 1b side of the wash bowl 1 Tighten into the hole 5c. Thereby, the decorative cover part 5 is drawn toward the base body part 6 side, and the flange part 5a of the decorative cover part 5 and the contact part 6a of the base body part 6 respectively connect the front and back surfaces 1a and 1b of the wash bowl 1 respectively. As a result, the decorative cover portion 5 and the base body portion 6 are attached so as to sandwich the wash bowl 1, and the cover side connecting cylinder 5 b and the main body side via the water-stopping packing 11. The connection tube 6b is connected in a watertight manner, and the assembly of the cap 4 is completed. At the same time, the attaching operation of the cap 4 to the opening 2 is also completed.

  Thus, by simply fastening the decorative cover portion 5 and the base body portion 6 constituting the base metal fitting 4 with the assembly screws 7, the front and back surfaces of the wash bowl 1 can be formed by the base body portion 6 and the decorative cover portion 5. Since it can be sandwiched and attached from 1a and 1b, there is no need to screw and attach the decorative cover part 5 to the wash bowl 1 as in the prior art. Moreover, since the fitting 4 can be attached to the assembly opening 2 at the same time by simply fastening the screw 7, there is an advantage that the number of work steps can be greatly reduced.

  Further, since it is not necessary to fix each part of the mouthpiece 4 to the wash bowl 1, a nut is embedded in the wash bowl 1 as in the past, or the wash bowl 1 is thickened to give strength. There is no need, and the wash bowl 1 can be formed with a uniform thickness. Therefore, there is an advantage that the forming cycle of the wash bowl 1 can be shortened.

  Further, since the tightening force of the screw 7 acts in the direction of pulling the decorative cover part 5 toward the base body part 6, the adhesion between the flange part 5a of the decorative cover part 5 and the surface 1a of the wash bowl 1 having smoothness is improved. As a result, a water-sealing structure is formed on the surface 1a side of the wash bowl 1, so that water leakage to the back surface 1b side of the wash bowl 1 can be reliably prevented. Moreover, in this example, the water-stopping packing 10 that is in close contact with the surface 1 a of the wash bowl 1 by tightening the screw 7 is provided between the decorative cover portion 5 and the surface 1 a of the wash bowl 1, thereby tightening the screw 7. The water sealing effect on the surface 1a side of the wash bowl 1 by the water stop packing 10 can be further enhanced by using the force. Therefore, it is not necessary to stop the water on the back surface 1b side of the wash bowl 1 as in the prior art, and the back surface 1b of the wash bowl 1 may be an uneven surface and does not need to be smooth. Furthermore, in this example, the water-stopping packing 11 is also interposed on the connection surface between the cover-side connecting tube 5b and the main-body-side connecting tube 6b. The water-stopping packing 11 is also connected to the cover-side connecting tube 5b by tightening the screws 7. Since it is crimped | bonded between connection surfaces with the main body side connection cylinder 6b, there also exists an advantage which the water-tightness in the connection part of the metal fitting 4 improves.

  In the said embodiment, although the case where the opening part 2 of the wash bowl 1 was a long hole shape was illustrated, of course, a round hole may be sufficient, In this case, the shape of the makeup | decoration cover part 5 and the nozzle | cap | die main body part 6 is used. Can be round, and can correspond to different shapes of the opening 2.

It is a top view explaining the state which attached the metal fitting used for one Embodiment of this invention to the opening part of the wash bowl. (A) is side sectional drawing explaining the attachment state of a cap metal fitting same as the above, (b) is a front view. The attachment state of the same cosmetic cover part to the wash bowl is shown, (a) is a partially broken plan view, (b) is a front view, (c) is a partially broken side view, and (d) is a rear view. It is. The base body of the above is shown, (a) is a partially broken front view, (b) is a partially broken plan view, (c) is a left side view, (d) is a right side sectional view, (e) Is a bottom view. (A) is side surface sectional drawing explaining the attachment state of the metal fitting of a prior art example, (b) is a front view of a decorative ring.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Washing bowl 1a Front surface 1b Back surface 2 Opening part 3 Overflow pipe 4 Mouth fitting 5 Cosmetic cover part 5a Flange part 5b Cover side connection cylinder 6 Base body part 6a Contact part 6b Main body side connection cylinder 7 Screw 10 Water stop packing

Claims (2)

An overflow pipe fitting is attached to the overflow opening of the wash bowl, and the fitting is a ring-shaped decorative cover and a cylindrical shape connected to the overflow pipe on the back side of the wash bowl from the side. A base body part bent into a substantially L shape when viewed, and the decorative cover part includes a flange part disposed on the surface side of the wash bowl, and a cover side connecting cylinder inserted into the opening part of the wash bowl. Is formed integrally, and the base body part can contact the body-side connecting tube that can be connected by inserting the protruding part on the back side of the wash bowl of the cover-side connection tube , and the back surface of the wash bowl And a boss that forms a screw hole on the outside of the main body side connection tube, and a water-tight packing between the rear end of the cover side connection tube and the main body side connection tube. Sandwich the above makeup In a state where each is opposed to the contact portion of the flange portion of the bar portion and the base body portion to the front and back side of the washbowl, opening on the back side of the washbowl provided in the portion located in the opening of the cover-side connecting tube By fastening the screw hole part to the screw body part and the screw hole part provided in the main body side connection cylinder with the screws for assembly, the decorative cover part is drawn to the base body part side, and the decorative cover part and the base body part are washed. An attachment structure for an overflow pipe fitting, wherein the bowl is attached so as to be sandwiched.   2. A waterproof seal is provided between the decorative cover portion and the surface of the wash bowl, and receives a tightening force of a screw to closely contact the flange portion of the decorative cover portion and the surface of the wash bowl. Mounting structure for the overflow pipe fitting described.

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