JP2000041895A - Stool seat and manufacture therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent gathering of urine and muck by eliminating clearance of a mating position of upper/lower housings, by fitting the projecting/recessed parts of an upper housing and a lower housing forming a stool seat, and integrally joining the upper/lower housings by welding the upper/lower housings by current-carrying to a metallic wire. SOLUTION: In assembling a stool seat 20 from an upper housing 21 constituting the seat surface and a lower housing 23 constituting the seat reverse, the upper/lower housings 21, 23 are interposingly pressed to be pressurized until the opening parts 21a, 23a formed in the upper/lower housings 21, 23 abut to each other. At this time, a metallic wire 27 is heated by impressing voltage on the metallic wire 27 installed in the recessed part 22c through current- carrying voltage impressing ports 20a to 20d by a current-carrying device, the peripheries of the recessed part 22c and the projecting part 23c are melted, and the fitting surfaces of these recessed part 22c and projecting part 23a are fused to join the upper/lower housings 21, 23. Thus, clearance is eliminated from a mating position of the upper/lower housings 21, 23 to prevent gathering of urine and muck.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet seat for a sanitary flush toilet seat which is installed on a toilet and used for sanitary use.

[0002]

2. Description of the Related Art In recent years, it has been incorporated into a toilet seat installed on a toilet bowl,
2. Description of the Related Art Sanitary washing toilet seat devices capable of washing local parts after stool and heating toilet seats have been widely used. In such a sanitary washing toilet seat device, since it is necessary to incorporate a heater for heating in the toilet seat, the toilet seat is formed by integrally joining an upper housing forming a seat surface and a lower housing forming a seat back.

[0003] The configuration of a conventional integral joint of this type of toilet seat will be described with reference to a cross-sectional shape cut along the line AA shown in FIG. 5. The prior art has an alignment position on the back surface of the toilet seat (the alignment direction is perpendicular to the vibration direction). As shown in FIGS. 6 and 7, as shown in FIGS. 6 and 7, in the upper housing 1 having a curved cross section, the inside of the lower end portions 3, 3 of the upper surface of the upper surface forming the seat surface 2 constitutes the seat back 4. Peripheral edges 6, 6 in the lower housing 5 in the shape of
Are cut at right angles to match the rectangular shape of the section. In other words, the lower end 3
A vertical surface 3a corresponding to the vertical end surface 6a of the peripheral edge 6 of the lower housing 5 and a horizontal plane 3b corresponding to the inner front edge surface 6b of the lower housing 5a are formed at right angle cut surfaces. Horizontal surface 3b and lower housing 5
And a horizontal vibration is applied to one of the housing members to generate frictional heat and weld.

Further, as shown in FIG. 8, there is a prior art 2 in which there is a matching position on the side of the toilet seat (the matching position is horizontal with the vibration direction).

[0005]

However, the vibration in the horizontal direction as in the prior art 1 requires the lower housing 5 as shown in FIG. A gap 7 having a vertical cross section is required between the vertical end face 6a and the vertical face 3a of the upper housing 1 (the resin melts when contacted, resulting in poor appearance), and the gap 7 remains in the seat back 4. Urine and dirt easily penetrate into the gap 7 having a vertical cross section, and it is not easy to remove the dirt, which impairs cleanliness.

[0006] The size of the gap 7 that can be grasped from the appearance is L when viewed from any of a predetermined angle range in front, and is visible to the far side of the gap 7 and impairs the appearance as a product. It is.

As in the prior art 2 shown in FIG. 8, when vibrating in the horizontal direction, a gap corresponding to the amplitude is not required, but a minimum gap is required in which the upper housing 1 and the lower housing 5 do not come into contact with each other. Although the gap is smaller than 1, urine and dirt easily enter the gap 7 from the side of the toilet seat similarly to the prior art 1, and it is not easy to remove the dirt and impair the cleanliness.

Further, the size of the gap 7 that can be perceived from the appearance is L even when viewed from the front, and is visible to the far side of the gap 7, thereby impairing the appearance as a product.

The present invention has solved the above-mentioned problems, has no gaps, does not accumulate urine and dirt, uses an electricity supply device and a pressing jig, and is inexpensive as compared with a vibration welding machine. The present invention provides a toilet seat that can easily separate the upper housing and the lower housing by reheating the same, can remove the metal wire, and can be recycled.

[0010]

Means for Solving the Problems In order to solve the above technical problems, the technical means (hereinafter referred to as first technical means) taken in claim 1 of the present invention constitutes a seating surface. A toilet seat formed by integrally joining an upper housing to be formed and a lower housing constituting a seat back, the upper housing having a convex portion or a concave portion all around the upper surface of the opening, and a concave portion or a convex portion all around the upper surface of the opening portion. The lower housing having a portion, comprising a metal wire that can be inserted into a recess provided around the entire opening of the upper housing or the lower housing, the metal wire is inserted into the recess of the upper housing or the lower housing, The opening formed in the upper housing and the opening formed in the lower housing are pressurized until they come into contact with each other. The energization of the metal wire is heated the metal wire, the upper housing and the lower housing and welded to the upper housing and the lower housing is a seat that is integrally joined.

The effects of the first technical means are as follows.

That is, at the position where the upper housing and the lower housing are aligned, there is no gap, no urine or dirt accumulates, and since the current supply device and the pressing jig are used, the cost is lower than that of the vibration welding machine. By heating the metal wire again, the upper housing and the lower housing can be easily separated from each other, and the metal wire can be removed, so that recycling is possible.

In order to solve the above technical problem, the technical means (hereinafter referred to as second technical means) taken in claim 2 of the present invention comprises an upper housing and a seat back which constitute a seat surface. A method of manufacturing a toilet seat, which is integrally joined with a lower housing constituting the upper housing, wherein the upper housing has a convex portion or a concave portion all around the upper surface of the opening, and has a concave portion or a convex portion all around the upper surface of the opening portion. The lower housing, and a metal wire that can be inserted into a concave portion provided around the entire opening of the upper housing or the lower housing, wherein the metal wire is inserted into the upper housing or the lower housing and formed on the upper housing. The opening formed in the lower housing and the opening formed in the lower housing are pressurized to contact each other. The metal wire is heated by energizing the, by melting the resin around the metal wire, a toilet seat manufacturing method for integrally joining said upper housing and said lower housing.

The effects of the second technical means are as follows.

That is, the manufacturing method is simpler than that of the vibration welding machine only by using the current supply device and the pressing jig, and the manufactured toilet seat has no gaps,
There is an effect that filth does not accumulate and the cost is low.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
A description will be given based on the drawings of FIGS.

The toilet seat 20 includes an upper housing 21 forming a seat surface and a lower housing 23 forming a seat back.
Each of the housings 21 and 23 has a planar shape following a spherical toilet bowl, and the upper housing 21 is a molded product made of a thermoplastic resin having a predetermined thickness and a curved cross section as shown in the figure. The lower housing 23 is also a molded product made of a thermoplastic resin.

The housings 21 and 23 are toilet seats in which functional elements such as a heater (not shown) are housed.

FIG. 3 is a view seen from the back side of the toilet seat 20, and FIG. 1 is a sectional view taken along the line BB of FIG. As shown in FIG. 1, an annular metal wire 27 is attached to a concave portion 22c provided continuously around the entire upper surface of the opening portion 21a of the upper housing 21, and the entire upper portion of the opening portion 23a of the lower housing 23 facing the concave portion 22c. The convex portion 23c provided continuously on the circumference is placed so as to face. The concave portion 22c of the upper housing 21 and the convex portion 23c of the lower housing 23 may be reversed.

As shown in a plan view of the toilet seat 20 shown in FIG.
And the inner peripheral metal wire 27b is connected to the recess 2 of the upper housing 21.
The toilet seat 20 is disposed along the outer diameter shape and the inner diameter shape of the toilet seat 20 in 2c.

Energizing voltage application ports 20a, 20b, 20
The c and 20d are disposed at the rear end of the toilet seat 20 which is invisible to the user in normal use as shown in FIG. 3, and apply a voltage to the voltage application ports 20a, 20b and 20c and 20d to energize the metal wire 27. .

In the toilet seat 20 having the above-described structure, the upper housing 21 and the lower housing 23 are pressed between the upper housing 21 and the opening 21 formed in the upper housing 21.
a until the opening 23a of the lower housing 23 comes into contact with the opening 23a.

At this time, the metal wire 27 is heated by applying a voltage to the metal wire 27 attached to the concave portion 22c through the voltage applying ports 20a, 20b, 20c, 20d for energization by an energizing device (not shown). Then, the periphery of the convex portion 21c and the concave portion 23c around the metal wire 27 is also melted, the fitting surfaces of the convex portion 21a and the concave portion 23a are welded, and the upper housing 21 and the lower housing 23 are joined.

At this time, as shown in FIG. 2, the opening 21a of the upper housing 21 and the opening 23a of the lower housing 23 are pressurized (pressed) until they contact each other. The gap at the position where the lower housing 21 and the lower housing 23 are aligned is eliminated. The energization and pressurization are performed by an unillustrated energizing device and pressurizing device.

As described above, according to the energization, unlike the conventional method in which the joint surface between the upper housing 21 and the lower housing 23 is heated and welded by vibration, noise at the time of vibration is not a problem, Since the jig is used, the manufacturing is simpler and cheaper than the vibration welding machine, and the upper housing and the lower housing can be easily separated by heating the metal wire again, and the metal wire can be removed. It also has the advantage that it can be recycled.

FIG. 4A is a sectional view of the toilet seat in which the inclined portion t1 is formed in the opening 21a of the upper housing 21. FIG. 4B is a cross-sectional view of the toilet seat in which the inclined portion t2 is formed in the opening 23a of the lower housing 23. With this structure,
When pressure is applied, the contact width between the upper housing 21 and the lower housing 23 can be further increased by reducing the abutting width (area) and concentrating the load.

[0027]

The present invention has the following effects.

That is, a toilet seat in which an upper housing constituting a seat surface and a lower housing constituting a seat back are integrally joined, wherein an upper housing constituting the seat surface and a lower housing constituting the seat back are provided. The upper housing having a convex portion or a concave portion all around the upper surface of the opening, the lower housing having a concave portion or a convex portion all around the upper surface of the opening, and the upper housing or A metal wire that can be inserted into a concave portion provided around the entire opening of the lower housing, and the metal wire is inserted into the concave portion of the upper housing or the lower housing, and is formed in the opening formed in the upper housing and the lower housing. Pressurized until the opened openings come into contact with each other, the convex and concave portions of the upper housing and the lower housing are fitted together, and the electric current is supplied to the metal wire to cause the metal wire to pass through. Since the metal wire is heated and the upper housing and the lower housing are welded together and the upper housing and the lower housing are integrally joined to each other, there is no gap at the position where the upper housing and the lower housing are joined. Urine and dirt do not accumulate and use an electricity supply device and pressurizing jig, so it is cheaper than a vibration welding machine, and the upper housing and lower housing can be easily separated by heating the metal wire again, Since the metal wire can be removed, there is an effect that recycling becomes possible.

[Brief description of the drawings]

1 is a sectional view of the toilet seat of the present invention taken along line BB in FIG. 3;

FIG. 2 is a diagram showing a state in which an upper housing and a lower housing are sandwiched (pressurized) in FIG.

FIG. 3 is a plan view of the toilet seat of the present invention as viewed from the back side.

FIG. 4 is a cross-sectional view of a toilet seat according to a second or third embodiment of the present invention in which an inclined portion is provided in an opening of an upper housing and an opening of a lower housing.

5 is a plan view of the surface (upper housing) of the toilet seat of Prior Art 1 for explaining the cross-sectional position in FIG. 6;

FIG. 6 is a sectional view taken along line AA of FIG. 5;

FIG. 7 is an enlarged sectional view of FIG. 6;

FIG. 8 is a sectional view taken along the line AA of FIG.

[Explanation of symbols]

 Reference Signs List 20 toilet seat 21 upper housing 21a opening 22c concave portion 23 lower housing 23a opening upper surface 23c convex portion 27 metal wire

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2D037 AA12 AD01 4F211 AD03 AD05 AD25 AG02 AG07 AH51 TA01 TA06 TA15 TC09 TD07 TD15 TH02 TH18 TN31 TN78 TQ01

Claims (2)

[Claims] 1. A toilet seat formed by integrally joining an upper housing constituting a seat surface and a lower housing constituting a seat back, wherein the upper housing has a convex portion or a concave portion all around the upper surface of the opening, The lower housing having a concave portion or a convex portion all around the upper surface of the opening; and a metal wire that can be inserted into a concave portion provided around the entire opening of the upper housing or the lower housing, wherein the metal wire is the upper housing. Alternatively, the upper housing and the opening formed in the lower housing are pressed until the opening formed in the upper housing and the opening formed in the lower housing come into contact with each other, and the projections and recesses of the upper housing and the lower housing are fitted. The metal wire is heated by energizing the metal wire, the upper housing and the lower housing are welded, and the upper housing and the lower housing are welded. Toilet seat and are integrally joined Ujingu. 2. A method for manufacturing a toilet seat, comprising an upper housing constituting a seat surface and a lower housing constituting a seat back integrally joined, wherein the upper housing has a convex portion or a concave portion all around the upper surface of the opening. A housing, the lower housing having a concave portion or a convex portion all around the upper surface of the opening, and a metal wire that can be inserted into a concave portion provided around the entire opening of the upper housing or the lower housing, and the upper housing or The metal wire is inserted into the lower housing, and pressure is applied until the opening formed in the upper housing and the opening formed in the lower housing come into contact with each other, and the convex and concave portions of the upper housing and the lower housing are fitted. The metal wire is heated by energizing the metal wire to melt the resin around the metal wire, and the upper housing and the lower housing are melted. Method of manufacturing a seat for integrally joining the grayed.