JP3333944B2 - Sanitary washing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing apparatus which is installed on a toilet and cleans a local part of a human body.

[0002]

2. Description of the Related Art A conventional sanitary washing device will be described below. As shown in FIGS. 9 to 11, one of the main bodies 42 mounted and fixed on the rear upper surface of the toilet 41, for example,
A hot water tank 43 is provided in 2a. The water stored in a low tank 44 provided at the rear of the toilet 41 is sent to a hot water tank 43 via a water supply hose 45 by a pump 46, and is heated by a hot water heater 47 disposed in the hot water tank 43 to become hot water. The anal buttocks nozzle 48 and the female bidet nozzle 4 stored in the main body 42 as necessary.
No. 9 and the hot water is switched by switching the water channel by the switching valve 50 of the nozzle unit.

The hot water tank 43 has a configuration in which an outer peripheral flange 53a of a tank 53 below the hot water tank 43 and an outer peripheral flange 54a of a tank lid 54 are sealed by a plurality of screw screws 51 via a packing 52.

A water guide pipe 56 is provided below a water inlet 55 projecting vertically from the tank lid 54, and a water inlet hose 57 communicating with a pump 46 is attached to the water inlet 55. A tap 58 protruding vertically from the tank lid 54.
Is provided with a tapping hose 59 communicating with the switching valve 50 of the nozzle unit. In the figure, reference numeral 60 denotes a printed circuit board provided with a cleaning switch 61 for operating the pump 46 and the switching valve 50 via a controller (not shown), a bidet switch 62, and the like. 63 denotes the temperature of the hot water in the hot and cold water tank 43. The temperature sensor W indicates the width of the outer peripheral flanges 53a and 54a.

[0005] The operation of the sanitary washing apparatus constructed as described above will be described below. Cleaning switch 6 by user
When 1 is pressed, the switching valve 50 switches the water path to the buttocks nozzle 48 side, and at the same time the pump 46 operates, and the low tank 4
The water stored in the hot water tank 4 is sent to the hot water tank 43, and the hot water previously heated to an appropriate temperature by the hot water heater 47, the temperature sensor 63, and the controller and stored in the hot water tank 43 is supplied to the tapping hose 59 and the switching valve 50. The butt is supplied to the butt nozzle 48 through the butt to clean the butt of the user. Similarly, when the bidet switch 62 is pressed, the switching valve 50 switches the water path to the bidet nozzle 49 side, and hot water is ejected from the bidet nozzle 49 to wash the bidet. During washing, a pressure of about 1 kg / cm ² is applied to the hot water tank 43 by the water supply pressure of the pump 46.

[0006]

However, the above-mentioned conventional configuration has the following problems. (1) Outer peripheral flange 53a of tank 53 and tank lid 5
4, the width of the packing 52 that can withstand the internal pressure of the hot water tank 43 is required, and the width of the outer flange 53a of the tank 53 is required. Since the dimension W is inevitably large, when the hot water tank 43 is stored in a limited space in the left lower portion 42a of the main body 42, the internal volume (hot water storage amount) of the tank 53 is reduced, and the tapping performance is poor. (2) In the method of assembling the seal between the tank 53 and the tank lid 54, the assembly is performed by using the plurality of screw screws 51 via the packing 52. Therefore, the plurality of tank flange holes and the plurality of packing holes are accurately aligned, and Therefore, the number of screw screws 51 is large, the number of work steps is large, and the manufacturing cost is high. (3) Since the tank 53 and the tank lid 54 are sealed by tightening a plurality of screw screws 51, the screw screws 5
In many cases, sealing failures occurred in the tightening portion 1.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has as its object to provide a sanitary washing apparatus having a large capacity of a hot and cold water tank, good tapping performance and high quality reliability, and low production cost. I do.

[0008]

In order to achieve this object, the sanitary washing device of the present invention comprises an upper tank and a lower tank, and is provided at the end of each tank around the outside of the thickness of the tank. Ridges and pedestal ribs and chevron projections
A flange provided with a convex rib and a groove provided.
The flange is opposed to the convex rib by fitting the concave groove.
And raise the distance from the bottom of the lower tank to the flange.
Shorter than the distance from the top surface of the tank to the flange, ultrasound structure this flange portion of the lower tank ultrasonic welding oscillator abuts against, provided tank receiving jig flange portion of the upper tank The hot water tank is provided with a watertight structure for melting and welding the chevron ribs by ultrasonic vibration while pressing both flange portions by welding equipment.

[0009]

In this configuration, the electrode of the ultrasonic welding oscillator can be formed in a shallow concave shape in accordance with the lower tank, so that the durability of the concave welded portion is reduced without reducing the strength of the peripheral portion of the concave shape, and the surface is durable without breakage. In addition to providing an advantageous welding facility, the flange portion provided around the outer side of the tank outside the wall thickness is narrowly pressed directly between the ultrasonic oscillator and the tank receiving jig to make contact with the tank. since welded by transmitting the ultrasonic vibration, the vibration is transmitted efficiently to the chevron protrusion rib provided on the pedestal rib result, and in a short time but such ultrasonic wave oscillator and pressure equipment is very little power Ultrasonic welding (water-tight construction) is possible, and as a result, a highly reliable hot water tank with very stable quality can be provided.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 3 and 4, a toilet seat 2 is placed on a toilet bowl 1, a main body case 3 and a toilet lid 4 are located on the rear upper surface of the toilet bowl 1, and can be replaced with existing toilet seats. Configuration. In consideration of installation workability and convenience of daily care, the main body case 3 is formed compactly. For example, the left lateral side surface 5 of the main body case 3 is located up to 25 cm from the center line of the toilet 1, The lower bottom surface 6 is formed so as not to protrude below the upper surface 1a of the toilet 1.

The water stored in the low tank 7 passes through a water supply hose 8, is pumped by a pump 9 in the main body case 3, passes through a water inlet hose 10 and a water guide pipe 11, and then flows through the hot water tank 1.
2 and is heated by a hot water heater 13 in a hot water tank 12 to become hot water, and reaches a switching valve 16 via a hot water outlet 14 and a hot water hose 15 at an upper portion of the hot water tank 12. The water path is switched by the switching valve 16, and hot water is discharged from either the buttocks nozzle 17 or the bidet nozzle 18 to clean a local part of the human body. Reference numeral 20 in the figure denotes a remote control device having an anus switch 21, a female bidet switch 22, and a flow control switch 23.

Although not shown, the main body case 3 includes a drying device for drying a local cleaning section including a drying fan heater, a drying heater, a wind tunnel, and the like, and a toilet device 1 including a deodorizing fan and a deodorizing agent. There is a deodorizing device that removes offensive odors.

As shown in FIGS. 1 and 2, the hot water tank 12 includes an upper tank 24 and a lower tank 25 made of a resin material.
The flange 24a of the upper tank 24 and the flange 25a of the lower tank 25 are joined in a watertight manner. The upper tank 24 has a hot water heater 13, a temperature sensor 26 for detecting boiling water, and an Float switch 27
In addition, a bimetal-type overheat prevention device 28 and a temperature fuse 29 that are activated when the hot water temperature control function fails are provided, and a water inlet 30 and a water outlet 31 are formed under a tank port 32 integrally formed. The water supply pipe 11 communicating with the water inlet 30 is provided so that the water entering from the water inlet 30 and the stored hot water are not mixed.

The hot water tank 12 is provided with an upper tank 2 so that deformation of the hot water tank 12 due to water pressure is reduced.
4 and a boss 33 extending from the bottom surface 25b of the lower tank 25 to fix the top surface 24b of the upper tank 24 and the bottom surface 25b of the lower tank 25 substantially at the center of the lower tank 25.
And a boss receiver 34 extending from the top surface 24b of the upper tank 24 to be fitted to the boss 33, an O-ring 35 for sealing between the two, and fixing means constituted by screws 36.

The water pipe 11 provided in the tank port 32
As shown in FIG. 5, the inner diameter of the water pipe 11 is increased as the water is lowered to the discharge port 11a at the lower end, and the flow velocity of the water at the time of discharge is reduced, so that the hot water stored in the hot water tank 12 is reduced. It has a configuration that improves the lifting efficiency.

Hereinafter, a method of joining the upper tank 24 and the lower tank 25 will be described. As shown in FIG.
Flange 25 provided on the periphery that protrudes outside the thickness of 5
a convex rib 25e composed of a pedestal rib 25c and a chevron-shaped projection rib 25d formed continuously over the entire circumference of
5e, the flange 24 on the outer peripheral edge of the upper tank 24
a concave groove 24c of the convex rib 25e and the fitting that Katachi設to a,
As shown in FIG. 7, a narrow pressure is applied between the ultrasonic oscillator 36 and the tank receiving jig 37 so as to make contact therewith, and a gap S is formed between the upper tank 24 and the lower tank 25. Then narrow pressure while operating the ultrasonic oscillator 36, to heat the abutting portion of the projection rib 25d and a concave groove 24c by the vibration, the convex ribs 25
welded between e and a concave groove 24c, joined watertight by eliminating the gap S.

As described above, according to the present embodiment, the upper tank
Flanges 24a, 25a are provided on the outer circumference of the lower tank 25 and 24.
Formed continuously and provided on the flange 25a of the lower tank 25
Water-tightness by welding means that melts and presses the convex rib 25e
Due to the configuration , the conventional example was a method of tightening with screw screws via packing between the upper and lower flanges,
The width of the packing required to withstand the internal pressure of the tank was required. As a result, the width of the tank flange was large. However, the width of the flanges 24a and 25a could be reduced, and the inner volume (hot water storage) of the hot water tank 12 could be increased. Therefore, the tapping performance can be improved.

Also, since the upper tank 24 and the lower tank 25 are assembled by sealing by ultrasonic welding, unlike the conventional method of assembling with a plurality of screw screws via a packing, a plurality of tank flange holes and a plurality of packings are used. There is no need to align the holes or tighten multiple screw screws, reducing the number of parts and the number of work steps.

The upper tank facing the convex rib 25e
Since the concave groove 24c is provided in the flange 24a,
Watertight construction with less displacement and less welding joint variation
it can.

Further , the convex ribs 25e are melted and pressed into contact.
The welding means is an ultrasonic welding (the ultrasonic oscillator 36 and the tank receiver).
Ultrasonic vibration is transmitted by pressing and abutting between the jigs 37
Welding in a very short time (water
Dense configuration) is possible.

Welding means for melting and pressing the convex ribs
Melts the mountain-shaped projection rib 25d provided on the pedestal rib 25c.
By using a watertight structure, the ultrasonic oscillator and
Sufficiently welds even power with few welding equipment
(Watertight configuration) is possible.

Further, a boss 3 having a screw pilot hole 33a extending from the bottom surface 25b of the lower tank 25 and a boss tip 33b.
3 and screw penetration extending from the top surface 24b of the upper tank 24
By providing a boss receiver 34 having a hole 34a, an O-ring 35 for sealing the two, and a fixing means for fixing the top surface 24b of the upper tank 24 and the bottom surface 25b of the lower tank 25 by screws 36, Even if the internal pressure is applied to the hot water tank 12, the top surface 24b of the upper tank 24 and the lower tank 2
Since the amount of deflection of the bottom surface 25b of the fifth member 5 can be regulated, the strength against repeated fatigue applied to the welded portion is improved, the reliability of quality is improved, the position can be regulated accurately and easily, and the number of work steps can be reduced.

[0024]

As is clear from the above description, the present invention provides: (1) the distance from the bottom surface of the lower tank to the flange
Shorter than the distance from the top surface of the click to the flange, with the ultrasonic welding oscillator flange portion of the lower capacitor <br/> down click abuts, the tank receiving jig flange portion of the upper tank The ultrasonic welding equipment has a water-tight structure that melts and welds the chevron ribs by ultrasonic vibration while pressing both flanges while pressing the two flanges together. Therefore, it is possible to provide a welding facility that is robust and does not cause breakage or the like in terms of durable strength without lowering the strength of the concave peripheral portion. (2) Fixation provided at almost the center of the upper and lower tanks
Means to fix the top surface of the upper tank and the bottom surface of the lower tank.
Internal pressure is applied to the hot water tank during cleaning use.
The amount of deflection of the top of the upper tank and the bottom of the lower tank
Can be regulated, so that it repeatedly
Sanitary washing with high quality reliability with improved fatigue resistance
Equipment can be provided. (3) Fixed hand provided almost at the center of upper tank and lower tank
The tier is composed of a boss receiver extending downward from the top of the upper tank and a lower boss.
Boss extending upward from the bottom of the tank with a screw
Because of the combined configuration, both the upper tank and lower tank
Assembling and fitting the concave groove provided on the flange and the chevron rib
When the boss and boss receiver are used as a reference, position
Therefore, the number of work steps can be reduced. Thus, the present invention
Good tapping performance and stable durability and reliability of the welded part.
It is possible to provide a sanitary washing device equipped with an inexpensive hot water tank in terms of cost.

[Brief description of the drawings]

1A is a plan view of a hot water tank of a sanitary washing device according to one embodiment of the present invention, and FIG.

FIG. 2 shows ABCD-E-FG- of FIG.
A 'sectional view

FIG. 3 is an external perspective view of the sanitary washing device.

FIG. 4 is a schematic cross-sectional view showing the concept of the configuration of the sanitary washing device.

FIG. 5A is a plan view of a tank port of a hot water tank of the sanitary washing device, and FIG.

FIG. 6 is a schematic sectional view of a flange of an upper tank and a lower tank of the same hot water tank.

FIG. 7 is a schematic cross-sectional view showing a state where the flange of FIG.

8 is a schematic sectional view showing a state where the ultrasonic oscillator is operated and welded to the state shown in FIG. 7;

FIG. 9 is an external perspective view of a conventional sanitary washing device.

FIG. 10 is a schematic sectional view showing the concept of the configuration of the sanitary washing device.

FIG. 11 is a sectional view of an essential part showing the inside of the sanitary washing device with a part of the main body being cut off.

[Explanation of symbols]

Reference Signs List 1 toilet bowl 2 toilet seat 3 body case 4 toilet lid 12 hot water tank 17 buttocks nozzle 18 bidet nozzle 24 upper tank 24a flange 24b top surface 25 lower tank 25a flange 25b bottom surface 25c base rib 25d projection rib 25e convex rib 33 boss (fixing means) 34 Boss receiver (fixing means) 35 O-ring (fixing means) 36 Screw (fixing means)

 ──────────────────────────────────────────────────続 き Continuing from the front page Judge Yutaka Kihara Judge Kimiko Suzuki Judge Makoto Nakata (56) References JP-A 4-97978 (JP, U) JP-A 64-22419 (JP, U) Showa 44-3109 (JP, Y1)

Claims (3)

(57) [Claims] 1. A toilet seat mounted on an upper surface of a toilet bowl, a main body case disposed on a rear upper surface of the toilet bowl, a toilet lid, and hot water storing hot and cold water for washing a local part of a human body disposed in the main body case. A sanitary washing device comprising a tank and a nozzle for discharging hot and cold water of the hot water tank, wherein the hot water tank comprises an upper tank and a lower tank, and each tank has an end portion outside the thickness of the tank. and Katachi設the flange portion provided around the, from the base rib and chevron protrusion rib
Flange with convex ribs and flange with concave grooves
The convex rib and the concave groove are fitted to face each other , and the distance from the bottom surface of the lower tank to the flange is set to the distance of the upper tank.
Shorter than the distance from the top surface to the flange, the lower tank
With ultrasonic welding oscillator flange portion abuts the, by ultrasonic welding equipment structure providing a jig receiving tank flange portion of the upper tank, Yamagata projections by ultrasonic vibration while pressed against the flange portions A watertight sanitary washing device that melts and welds ribs. 2. The sanitary washing device according to claim 1, wherein the top surface of the upper tank and the bottom surface of the lower tank are fixed by fixing means provided substantially at the center of the upper tank and the lower tank. 3. The sanitary washing device according to claim 2, wherein the boss receiver extending downward from the top surface of the upper tank and the boss extending upward from the bottom surface of the lower tank are connected by screws. apparatus.