JPH10121551A - Hot water control structure of hot water-washing toilet seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily turn a switch interlocking with a thermostat to the closed condition. SOLUTION: A hot water control structure of a hot water-washing toilet seat is provided with a water storage tank for washing the private parts and an automatic-reset thermostat 25 changing from the closed condition to the opened condition when the washing water in the tank has exceeded a specified temperature and changing from the opened condition to the closed condition when the washing water has lowered to a lower temperature than a specified one. And also it is provided with a switch 26 connected to the thermostat 25 in series, changing to the opened condition by interlocking with the change to the opened condition of the thermostat 25 and continuously retaining the condition thereafter, an control means 61, 62 to return the switch 26 to the closed condition, and an indicator 67 showing the condition of the switch 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water flush toilet seat device and, more particularly, to a temperature control mechanism of warm water for cleaning a local part of a human body.

[0002]

2. Description of the Related Art For example, as disclosed in Japanese Patent Publication No. 61-54894, in a hot water control mechanism of a hot water flush toilet seat device, when the temperature of flush water in a tank exceeds a predetermined value, a thermostat is activated. It is designed to open and stop energizing the heater. Although not explicitly described in this publication, once the thermostat changes to the open state, the thermostat keeps the open state unless operated from the outside. The hot water flush toilet seat device itself equipped with such a hot water control mechanism is configured as an assembly mounted on a toilet installed in a toilet, and is manufactured from a factory until it is shipped to a user. , Stored in a warehouse.

[0003]

However, in summer, when the temperature in the warehouse rises, the thermostat opens, and the hot water flush toilet seat device may be mounted on the toilet in that state. In such a case, at the time of the test run immediately after the mounting, the warm water flush toilet seat device does not operate, and thus, it is discovered for the first time that the thermostat is opened. Then, the freshly mounted warm water flush toilet seat device had to be removed from the toilet, the thermostat had to be operated, and the state again changed to the closed state.

[0004] Therefore, the present invention does not provide a warm water flush toilet seat device that can return the thermostat to the closed state without removing the thermostat from the toilet even if the thermostat is open before the provisional instruction. It is an important subject.

[0005]

Means for Solving the Problems In order to solve the above technical problem, the technical means taken in the invention according to claim 1 is a tank for storing washing water for washing a human body part, An automatic reset thermostat that changes from a closed state to an open state when the temperature of the washing water exceeds a predetermined value and changes from an open state to a closed state when the temperature drops below a predetermined value, and is connected in series with the thermostat And a switch unit which shifts to the open state in conjunction with the shift of the thermostat to the open state, and thereafter maintains the state, operation means for returning the switch unit to the closed state, and a display indicating the state of the switch unit. The hot water control mechanism of the hot water flush toilet seat device provided with the means is constituted.

[0006]

In the above-mentioned technical means, if the display means indicates the open state of the switch, the warm water flush toilet seat device can be used only by operating the operating means to return the switch to the closed state. Can be trimmed.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 4, the hot water flush toilet seat device 10 includes a casing 13 mounted on a rear upper edge of a toilet 11. One side of the main body 13a of the casing 13 in the longitudinal direction (the left-right direction in FIG. 2) protrudes forward and downward by a predetermined length, and forms a lower protruding portion 13b and a front protruding portion 13c, respectively. Casing 13
As is well known, a toilet seat 15 and a toilet lid 16 are rotatably mounted by hinge pins (not shown).

Inside the casing 13, a tank 17 for storing warm water as washing water is accommodated. Tank 17
Has a substantially inverted L shape as a whole,
The shallow part 17a and the shallow part 7a located inside the main body 13a
And a narrow deep portion 17b located in the lower protruding portion 13b of the casing 13 extending downward from one side. As will be described later, washing water heated and maintained at a predetermined temperature by the hot water control mechanism 50 is stored in the tank 17, and a shower washing switch 61 (provided on the front protruding portion 13c of the casing 13) is provided. When the bidet cleaning switch 62) is pressed, the nozzle 71 (nozzle 72) moves forward to perform shower cleaning (bidet cleaning).

The tank 17 has an upper portion 17c.
The heater 18 extending to the vicinity of the bottom in the narrow portion 17b is fixed. When power is supplied to the heater 18 from the power supply 19, the heater 18 generates heat and heats the cleaning water in the tank 17. Upper part 1 of tank 17
7c also includes a thermistor 2 extending into the tank 17.
2 is fixed. When the temperature of the washing water detected by the thermistor 22 exceeds the first set value (40 degrees Celsius),
This is transmitted as a signal to the control device 20 serving as a microcomputer, and the control device 20 opens the switch 23 to stop energizing the heater 18 from the power supply 19.

A hole 17d is formed in an upper portion 17c of the tank 17, and a body portion 28a of a cup 28 made of a metal having high thermal conductivity, for example, copper is mounted in the hole 17d. The main body 28a is always in contact with the cleaning water heated by the heater 18. Thus, the annular flange portion 28b of the cup 28 is thermally connected to the thermostat 25. When the temperature of the washing water exceeds the second set value (50 degrees Celsius) due to the failure of the thermistor 22, the cup 28 is opened. The power supply from the power supply 19 to the heater 18 is stopped.

The annular flange portion 28b of the cup 28
The thermal fuse 29 is thermally held by a clamp 30 formed of a copper plate. If the temperature of the washing water exceeds the third set value (70 degrees Celsius) when both the thermistor 22 and the thermostat 25 fail at the same time, the thermal fuse 29 is melted and the power supply 19 to the heater 18 is melted. From the power supply is stopped.

As shown in FIG. 4, the hot water control mechanism 50 includes a control device 20 as a microcomputer and one end of a power supply 19, a thermostat 25, an interlock switch 26, a temperature fuse 29, a thermistor 22, a heater 1
8, a sub-switch 23, a main switch 27, and a heater circuit 51 formed by connecting the other ends of the power supply 19 in series.

Even when the thermostat 25 is opened, the thermostat 25 returns to the closed state again when the temperature of the washing water falls below 50 degrees Celsius. Interlock switch 26
Is opened at the same time as the thermostat 25 is opened. However, once the thermostat 25 is opened, the thermostat 25 is kept in the open state. When the interlock switch 26 is returned to the closed state or closed, the interlock switch 26 is closed when both the shower cleaning switch 61 and the bidet cleaning switch 62 are simultaneously pressed. This is performed by the unit 20. Further, when the thermostat 25 is opened, the control unit 20 that detects that
Closes the switch 66 and turns on the lamp 67.
The lamp 67 is installed near the shower cleaning switch 61 and the bidet cleaning switch 62. Therefore, when the thermostat 25 is in an open state before the hot water flush toilet seat device 10 is installed on the toilet 11, the contact portion 26 is closed immediately after the installation.

The upper portion 17c of the tank 17 includes a tank 17
A pipe 41 extending to the vicinity of the bottom in the narrow portion 17b is fixed, and is connected to a water pressure source (not shown) via a pipe. When the shower cleaning switch 61 (the bidet cleaning switch 62) is pressed, the water fed from the water pressure source is supplied into the tank 17 through the pipe 42 and the pipe 41, and the cleaning water in the tank 17 is pushed out. The passage 78 and the opened first solenoid valve 45 (the second solenoid valve 4
After passing through 6), the nozzle 71 (nozzle 72) is advanced, and then sprayed toward a human body part to perform shower cleaning (bide cleaning).

When the temperature of the washing water rises to 50 degrees Celsius due to the failure of the thermistor 22, the thermostat 25 is opened, the power supply to the heater 18 is cut off, and the heating of the washing water is stopped. At the same time, the lamp 67 is turned on, but the lamp 67 continues to be turned on unless the thermostat 25 returns to the closed state, so that the user can be notified of the abnormality of the thermistor 22.

[0017]

According to the first aspect of the present invention, the following effects can be obtained.

Since the user can visually sense the open state of the switch section by the display means, it is possible to easily recognize the abnormality of the hot water control mechanism after the start of use.

Since the switch portion which is kept in the open state before use is easily changed to the closed state, there is no inconvenience as in the prior art.

According to the second aspect of the invention, the following effects can be obtained.

Since the operation means for closing the switch section again is constituted by the shower cleaning switch and the bidet cleaning switch, it is not necessary to separately provide a dedicated switch.

[Brief description of the drawings]

FIG. 1 is a transverse sectional view of a hot water control mechanism of a hot water flush toilet seat device according to an embodiment of the present invention.

FIG. 2 is a plan view of the apparatus of FIG.

FIG. 3 is a longitudinal sectional view of the device of FIG. 1;

FIG. 4 is a circuit diagram of the device of FIG. 1;

[Explanation of symbols]

 17 tank 25 thermostat 26 interlocking switch (switch part) 61 shower cleaning switch 62 bidet cleaning switch 67 lamp (display means)

Claims (2)

[Claims] 1. A tank for storing washing water for washing a human body part, wherein the tank changes from a closed state to an open state when the temperature of the washing water in the tank exceeds a predetermined value, and the temperature is equal to or lower than a predetermined value. An automatic reset type thermostat that changes from an open state to a closed state when the thermostat is lowered, is connected in series with the thermostat, changes to the open state in conjunction with the change of the thermostat to the open state, and thereafter maintains the state. A hot water control mechanism for a hot water flush toilet seat device, comprising: a switch unit; an operation unit for returning the switch unit to a closed state; and a display unit for indicating a state of the switch unit. 2. The hot water control mechanism according to claim 1, wherein said operating means comprises a shower cleaning switch and a bidet cleaning switch.