JP4556940B2 - Toilet bowl - Google Patents

Description

  The present invention relates to a toilet with improved strength against a load of a bowl portion.

  Conventionally, as shown in FIGS. 3A and 3B, the skirt portion 1, the bowl portion 2 disposed inside the skirt portion 1, and the rim portion 3 joined to the upper portion of the skirt portion 1 are divided into three. There is a toilet bowl made of synthetic resin (see Patent Document 1).

  In the toilet as described above, as shown in FIG. 3 (c), the rim part 3 is composed of an upper side part 3a, an inner side part 3b, and a lower side part 3c, and the lower surface of the upper side part 3a of the rim part 3 is The outer end 3d of the lower side 3c of the rim 3 is supported by a step 1b formed on the inner surface of the skirt 1, and the upper end 2a of the bowl 2 is fixed to the rim. It can be considered that the lower surface 3c of the part 3 is brought into contact with the lower surface of the lower side 3c and joined.

Further, as shown in FIG. 4, it is conceivable that sawtooth portions 2c and 1c are formed on the outer surface portion 2b near the upper end portion 2a of the bowl portion 2 and the inner surface of the skirt portion 1 and meshed with each other. .
Japanese Patent No. 3436004

  However, in the background art of FIG. 3A, the upper end 2a of the bowl portion 2 is merely brought into contact with and joined to the lower surface of the lower side portion 3c of the rim portion 3, so that a load is applied to the bowl portion 2. There is a problem that the strength of is not sufficient.

  On the other hand, in the background art of FIG. 4, the sawtooth portion 2 c of the outer surface portion 2 b of the bowl portion 2 and the sawtooth portion 1 c of the inner surface of the skirt portion 1 are meshed with each other. Although the strength when added is sufficient, there is a problem that a complicated shape is required as a molded product and that assembly is difficult.

  The present invention has been made to solve the above problems, and an object thereof is to provide a toilet devised so that the strength against the load of the bowl portion is improved, the shape is simple, and the assemblability is also good. To do.

In order to solve the above-mentioned problems, the present invention is a toilet bowl divided into three parts: a skirt part, a bowl part arranged inside the skirt part, and a rim part joined to the upper part of the skirt part, The rim portion is composed of an upper side portion, an inner side portion, and a lower side portion, and an outward flange portion is formed on the bowl portion, and the lower surface of the upper side portion of the rim portion is in contact with the upper end portion of the skirt portion. The lower surface of the lower side portion of the rim portion is brought into contact with and joined to the upper surface of the flange portion of the bowl portion, and the outer end portion of the lower side portion of the rim portion and the outer end portion of the flange portion of the bowl portion are A toilet bowl characterized by being in contact with an inner surface is provided.

As in claim 2, the inner surface of the lower side portion of the inner surface of the rim portion of the flange portion of the bowl portion is preferably formed to be continuous in substantially flush.

According to a third aspect of the present invention, it is preferable that a stepped portion or a concave portion for supporting the outer end portion of the flange portion of the bowl portion is formed on the inner surface of the skirt portion.

As in claim 4 , ribs are formed at the outward corner portions of the inner side portion and the lower side portion of the rim portion, and ribs are formed at the outward corner portions of the bowl portion and the flange portion. Is preferred.

  According to the present invention, since the upper surface of the flange portion of the bowl portion is brought into contact with the lower surface of the lower side portion of the rim portion and joined, the joining area is increased and the strength of the bowl portion against the load is improved. Become.

  Basically, the upper surface of the flange portion of the bowl portion is simply brought into contact with and joined to the lower surface of the lower side portion of the rim portion, so that the shape is simple and the assemblability is good.

Further, since the outer end portions of the rim portion and the bowl portion are in contact with the inner surface of the skirt portion, the load acting on the rim portion can be distributed to the bowl portion and the skirt portion, so that the strength of the rim portion against the load is increased. To improve.

According to the second aspect , the inner surface of the flange portion of the bowl portion and the inner surface of the lower side portion of the rim portion are formed so as to be substantially flush with each other. It becomes easy to do.

According to the third aspect , since the outer end portion of the flange portion of the bowl portion is supported by the step portion or the concave portion of the skirt portion, the positional deviation between the skirt portion, the rim portion, and the bowl portion is eliminated, and the assembling property is improved. To improve.

According to the fourth aspect , since the ribs are formed at the outward corner portions of the rim portion and the bowl portion, sink marks due to the molding of the ribs are difficult to see from the outside, so that the appearance is improved and the rim portion at the time of molding is improved. Warpage of the flange portion of the lower side portion and the bowl portion is reduced, and the lower side portion of the rim portion and the flange portion of the bowl portion can be joined uniformly over the entire circumference.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. Note that portions having the same configuration and operation as those of the background art are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 1A is a side cross-sectional view of a toilet, in which a bowl portion 2 is disposed inside a skirt portion 1 and a rim portion 3 is joined to the upper portion of the skirt portion 1.

  As shown in an enlarged view in FIG. 1 (b), the rim portion 3 of the first embodiment is integrally formed into a substantially U-shape in a lateral direction with an upper side portion 3a, an inner side portion 3b, and a lower side portion 3c. 1 is brought into contact with the lower surface of the upper side 3a of the rim 3 and joined. As will be described later, if the rim portion 3 does not require a washing water passage, the rim portion 3 does not necessarily need to be hollow and can be solidly formed.

  An outward flange portion 2 d is integrally formed with the bowl portion 2, and the lower surface of the lower side portion 3 c of the rim portion 3 is brought into contact with and joined to the upper surface of the flange portion 2 d of the bowl portion 2.

  Furthermore, the inner surface 2f of the flange portion 2d of the bowl portion 2 and the inner surface 3f of the lower side portion 3c of the rim portion 3 are formed to be substantially flush with each other.

  If the upper surface of the flange portion 2d of the bowl portion 2 is brought into contact with and joined to the lower surface of the lower side portion 3c of the rim portion 3 as in the first embodiment, the lower side portion 3c of the rim portion 3 and the flange portion of the bowl portion 2 are joined. The joint area with 2d is greatly increased, and the strength of the bowl portion 2 against the load is improved.

  Basically, the upper surface of the flange portion 2d of the bowl portion 2 is simply brought into contact with and joined to the lower surface of the lower side portion 3c of the rim portion 3, so that the shape is simple and the assemblability is improved.

  Further, since the inner surface 2f of the flange portion 2d of the bowl portion 2 and the inner surface 3f of the lower side portion 3c of the rim portion 3 are formed so as to be substantially flush with each other, smooth inner surfaces 2f and 3f having no steps are provided. Therefore, it becomes easy to clean.

  FIG. 1C is a modification of the first embodiment, and the outer end 3 d of the lower side 3 c of the rim 3 and the outer end 2 e of the flange 2 d of the bowl 2 are the inner surface of the skirt 1. It is made to contact.

  The outer end portions 3d and 2e of the rim portion 3 and the bowl portion 2 may be brought into contact with and joined to the inner surface of the skirt portion 1. By joining in this way, the water tightness in the rim portion 3 closed by the skirt portion 1 is enhanced, and a passage for cleaning water can be obtained.

  If the outer ends 3d and 2e of the rim portion 3 and the bowl portion 2 are brought into contact with the inner surface of the skirt portion as in this modification, the load acting on the rim portion 3 is applied to the bowl portion 2 and the skirt portion 1. Since it can disperse | distribute, the intensity | strength of the rim | limb part 3 with respect to a load comes to improve.

  Note that, as in the first embodiment of FIG. 1B, the outer end portions 3d and 2e of the rim portion 3 and the bowl portion 2 are not brought into contact with the inner surface of the skirt portion 1, and a slight gap (for example, 1 mm or less) ) Can absorb distortion due to molding error and load.

  In FIG. 1 (also in FIG. 2 below), the inner surface 2f of the flange portion 2d of the bowl portion 2 and the inner surface 3f of the lower side portion 3c of the rim portion 3 are formed so as to be substantially flush with each other. A step may be formed by retreating the inner surface 2f of the portion 2d toward the skirt portion 1 side.

  FIG. 2A shows the second embodiment, which differs from the first embodiment shown in FIG. 1B in that the outer end 2e of the flange 2d of the bowl 2 is supported on the inner surface of the skirt 1. The step portion 1d is formed. The outer end 3d of the lower side 3c of the rim 3 is also supported by the step 1d via the outer end 2e of the flange 2d of the bowl 2.

  FIG. 2B shows a modification of the second embodiment. Similarly to the modification of the first embodiment of FIG. 1C, the outer end 3d of the lower side 3c of the rim 3 and the bowl 2 The outer end portion 2e of the flange portion 2d is brought into contact with the inner surface of the skirt portion 1 or joined by being brought into contact therewith.

  FIG. 2C shows a third embodiment, which is different from the first embodiment of FIG. 1B in that the outer end 2e of the flange 2d of the bowl 2 is supported on the inner surface of the skirt 1. It is the point which formed the recessed part 1e to perform. The outer end 3d of the lower side 3c of the rim 3 is also supported by the recess 1e via the outer end 2e of the flange 2d of the bowl 2.

  FIG. 2D is a modification of the third embodiment. Like the modification of the first embodiment of FIG. 1C, the outer end 3d of the lower side 3c of the rim 3 and the bowl 2 The outer end portion 2e of the flange portion 2d is brought into contact with the inner surface of the skirt portion 1 or joined by being brought into contact therewith.

  If the outer end 2e of the flange 2d of the bowl 2 is supported by the step 1d or the recess 1e of the skirt 1 as in the second and third embodiments, the skirt 1, the rim 3 and the bowl Misalignment with the part 2 is eliminated, and the assembling property is improved.

  FIG. 2E shows a fourth embodiment, which is different from the second embodiment shown in FIG. 2A in that the outward corner portions of the inner side 3b and the lower side 3c of the rim 3 are triangular. The rib 3g is integrally formed, and the triangular rib 2g is integrally formed at the outward corner portion of the bowl portion 2 and the flange portion 2d. The outer end 3d of the lower side 3c of the rim 3 is also supported by the recess 1e via the outer end 2e of the flange 2d of the bowl 2.

  2 (f) is a modification of the fourth embodiment. Like the modification of the second embodiment of FIG. 2 (b), the outer end 3 d of the lower side 3 c of the rim 3 and the bowl 2 The outer end portion 2e of the flange portion 2d is brought into contact with the inner surface of the skirt portion 1 or joined by being brought into contact therewith.

  If the ribs 3g and 2g are formed at the outward corner portions of the rim 3 and the bowl portion 2 as in the fourth embodiment, sink marks due to the formation of the ribs 3g and 2g are difficult to see from the outside, so the appearance is improved. At the same time, warpage of the lower side 3c of the rim 3 and the flange 2d of the bowl 2 during molding is reduced, and the lower side 3c of the rim 3 and the flange 2d of the bowl 2 are all around. And uniform bonding.

  In each embodiment, the toilet bowl is a synthetic resin molded product divided into at least three parts, a skirt part 1, a bowl part 2 and a rim part 3, and these parts are joined and integrated by welding. Examples of the molding method include injection molding, compression molding, and vacuum molding. As the molding material, relatively strong acrylic resin, ABS or PBT with a reinforcing material, or the like can be used.

It is a toilet according to an embodiment of the present invention, (a) is a cross-sectional view, (b) is an enlarged cross-sectional view of the lower side portion of the rim portion of the first embodiment and the flange portion of the bowl portion, (c), It is an expanded sectional view of the modification of (b). (A) is an expanded sectional view of the lower side part of the rim | limb part of 2nd Embodiment, and the flange part of a bowl part, (b) is an expanded sectional view of the modification of (a), (c) is 3rd The expanded sectional view of the lower side part of the rim | limb part of embodiment, and the flange part of a bowl part, (d) is an expanded sectional view of the modification of (c), (e) is the lower side of the rim part of 4th Embodiment. (F) is an expanded sectional view of the modification of (e). It is a toilet bowl of background art, (a) is an exploded perspective view, (b) is a perspective view, (c) is a principal part sectional view. It is another example of background art, and is principal part sectional drawing equivalent to FIG.3 (c).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Skirt part 1d Step part 1e Recessed part 2 Bowl part 2d Flange part 2e Outer end part 2f Inner surface 2g Rib 3 Rim part 3a Upper side part 3b Inner side part 3c Lower side part 3d Outer end part 3f Inner surface 3g Rib

Claims (4)

A toilet bowl divided into three parts: a skirt part, a bowl part arranged inside the skirt part, and a rim part joined to the upper part of the skirt part,
The rim portion includes an upper side portion, an inner side portion, and a lower side portion, and an outward flange portion is formed on the bowl portion, and a lower surface of the upper side portion of the rim portion abuts on an upper end portion of the skirt portion. The lower surface of the lower side portion of the rim portion is joined in contact with the upper surface of the flange portion of the bowl portion, and the outer end portion of the lower side portion of the rim portion and the outer end portion of the flange portion of the bowl portion are the skirt portion. A toilet bowl that is in contact with the inner surface of the toilet. The toilet bowl according to claim 1 , wherein the inner surface of the flange portion of the bowl portion and the inner surface of the lower side portion of the rim portion are formed so as to be substantially flush with each other. The toilet bowl according to claim 1 or 2 , wherein a stepped portion or a recessed portion for supporting an outer end portion of the flange portion of the bowl portion is formed on an inner surface of the skirt portion. The rib is formed in the outward corner portion of the inner side portion and the lower side portion of the rim portion, and the rib is formed in the outward corner portion of the bowl portion and the flange portion. The toilet according to any one of to 3 .

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