JPH04343812A - Heating toilet seat - Google Patents

Abstract

PURPOSE:To make it comfortable to sit on a toilet seat and to prevent waste water from splashing to the outside by integrally molding a first and second molding layers, enclosing a heating element unit therein, at a low pressure into a roughly circular cross section and a roughly horse-shoe-shaped or roughly O-shaped plane, the molding layers. CONSTITUTION:A toilet seat 40 is comprised of a first molding layer 41 made of synthetic resin and forming the surface portion of the seat; a second molding layer 42 made of synthetic resin and forming the reverse side portion; a heating element unit 46 consisting of a cord-shaped, or planar, heating body 43 arranged between the molding layers 41, 42, a temperature detecting device 44 and a wiring member 45 for connecting the body 43 and the device 44 together; and leg rubber 15. The heating element 43 is formed by winding a copper-nickel alloy wire or the like into a spiral or twisted coil and by covering the wire with silicon resin or the like. The heating element 43 is fixed using a sewing machine to nonwoven fabric 47 made of flexible polyester resin or the like while the element 43 is adjusted to the toughly horse-shoe shape or O-shape of the toilet seat main body 40. The temperature detecting device 44 is connected to the heating element 43 by the connecting wiring member 45 so as to form the heating element unit 46.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heated toilet seat that is mounted and fixed on a Western-style toilet bowl, or a heated toilet seat that is used in combination with a washing and drying device.

0002

2. Description of the Related Art Hereinafter, a conventional heated toilet seat of this type will be explained with reference to FIGS. 5 to 7. That is, as shown in FIG. 5, the heated toilet seat placed on the Western-style toilet bowl 1 has a case part 3 that houses a control circuit (not shown) and the like at the end of the toilet seat 4.
and a shaft 6, and the toilet lid 5 is rotatably attached via the shaft 6.

Next, FIG. 6 shows the shape of the section A of the toilet seat 4 described above. Note that the configuration of this type of toilet seat 4 is disclosed in Japanese Patent Application Laid-open No. 1986-
It is disclosed in Japanese Patent No. 32827, and its configuration will be explained below based on FIG. 5. That is, the toilet seat main body 7 is injection molded with synthetic resin that forms the surface of the toilet seat 4, and a string-shaped heater 8, which is formed into a unit by melt-bonding to an aluminum laminate film 9, etc., is attached to the back surface of the toilet seat main body 7 using double-sided adhesive tape 10. A back plate 11 made of the same synthetic resin and injection molded is bonded to the back surface of the toilet seat main body 7 by ultrasonic welding means or heat welding means, thereby forming the toilet seat 4 into a box shape consisting of two parts. The toilet seat main body 7 and the back plate 11 are joined over the entire circumference by welded parts 12 and 13 that fit into each other. Moreover, a plurality of shelf rubbers 15 are fixed to the back surface 14 of the back plate for load resistance or for shock prevention during opening and closing. For this reason, a gap 17 is formed between the toilet bowl top surface 16 and the entire circumference. On the other hand, the configuration of a heated toilet seat mounted on a cleansing toilet seat having a nozzle etc. is generally the same as that described above, as shown in FIG. The gap 17 tends to be enlarged depending on the position of the air outlet and the like. Therefore, although a configuration as disclosed in Japanese Utility Model Application Publication No. 58-58796 has been proposed, it lacks specificity in terms of implementation and does not disclose improvements in the sitting comfort of the user 19.

0004

However, in the configuration of the conventional toilet seat 4 described above, the conditions for welding the two parts of the toilet seat body 7 and the back plate 11, that is, the temperature, pressure, time, etc., are kept constant and the welded part 12, In order to simultaneously and stably weld the inner and outer peripheries of 13, it is necessary to maintain a constant distance between the electrode or hot plate and the part to be welded. Therefore, it is desirable that the shapes of the welded parts 12 and 13 be horizontal and on the same plane. However, even if an attempt is made to improve the shape of the toilet seat body 7 in order to improve the sitting comfort of the user 19, there are restrictions on the shape of the welding conditions, that is, the shapes of the welded parts 12 and 13 must be set on the same plane. , there was less freedom in design and design, and seating comfort was sacrificed. Further, there is a problem in that the splashed water and sewage 18 from the cleaning nozzle 20 of the toilet seat shown in FIG. 7 hits the user 19 through the gap 17 between the toilet seat body 7 and the back plate 11, resulting in unsanitary conditions.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and aims to provide a heated toilet seat that is comfortable to sit on and that prevents sewage from scattering to the outside due to flushing water.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the heated toilet seat of the present invention includes a first molded layer made of synthetic resin that constitutes the surface portion of the toilet seat body, and a second molded layer that constitutes the back surface portion of the toilet seat body. A heating element unit comprising a molded layer, a string-like or planar heating element and a temperature sensing element arranged between the first and second molded layers, and a wiring member for connecting them,
The first and second molded layers containing the heating element unit are integrally formed under low pressure so that the cross section is approximately arcuate, and the plane is approximately horseshoe-shaped or approximately O-shaped, and is formed on the top surface of the toilet facing the toilet bowl portion. On the other hand, the inner periphery of the front toilet seat main body extends from the outer periphery toward the toilet ball part in an inclined manner so as to be close to the edge of the toilet bowl.

[0007]

[Operation] With the above-described structure, the present invention allows the shape of the toilet seat body containing the heating element unit to be freely formed to suit the sitting position of the user. Furthermore, by extending the entire inner circumferential portion of the toilet seat body from the top surface of the toilet in an inclined manner toward the bowl ball surface, it is possible to prevent flushing water, small water, etc. from scattering to the outside.

Furthermore, since the first and second molding layers can be integrally formed from the same synthetic resin by low-pressure molding, molding can be performed using one mold, and during molding, the heating element that is found in ordinary high-pressure molding can be removed. There is no possibility of displacement of the unit.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. Note that the same components as in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIGS. 1 and 2, the toilet seat body 40
is a first molded layer 41 made of synthetic resin that constitutes the surface portion thereof.
and a second molded layer 42 made of the same synthetic resin that constitutes the back surface part.
, a heating element unit 46 consisting of a string-like or planar heating element 43 disposed between the first and second molded layers 41 and 42, a temperature detection element 44, and a wiring member 45 for connecting these; It is composed of rubber 15.

Next, the manufacturing process of the above structure will be explained. The heating element 43 in this embodiment is made of copper-nickel alloy wire, stainless steel wire, or the like in a spiral or torsion shape, and is made of silicone resin or Teflon (
(registered trademark) is a string-shaped heating element 43 with an outer diameter of 2 mm or less covered with an outer skin, etc., and the heating element 43 has a basis weight of 200 g/
It is fixed to a non-woven fabric 47 made of a flexible polyester resin or nylon (registered trademark) having a size of less than m2 using a sewing machine or the like in accordance with the shape of the toilet seat main body 40, that is, approximately a horseshoe shape or an approximately O shape. At this time, the temperature sensing element (thermistor) 44 is fixed in advance at a predetermined position and connected with a connecting wiring member 45 such as a lead wire to form a heating element unit 46.

Next, as a molding method, a well-known low-pressure press molding method as shown in FIG. 8 was applied. The process model of this low-pressure press molding method shown in the figure will be explained. First, between the unclosed upper mold 50 and lower mold 51 shown in FIG.
Supplied from 4. Next, as shown in (B), immediately after the supply, the upper mold 50 and lower mold 51 are closed to force the molten resin 52 into the mold and form it under pressure as shown in (C). Finally, upper mold 5
0 and the lower mold 51 are opened and the molded product is taken out. In other words, the heating element unit 46 is integrally molded by applying this molding method.

Next, by the above-mentioned low pressure press mode method,
The molding process for the toilet seat 40 of the present invention will be explained. That is, as shown in FIG. 4A, the heating element unit 46 is first set along the upper surface of the lower mold 51, and then the upper mold 5 of the half-open mold in which the heating element unit 46 is set is set.
A fixed amount of molten resin 52 made of PP or ABS resin is supplied between the heating element unit 46 and the heating element unit 46 . A through hole 55 is opened in the heat generating unit 46 facing the gate 54 so that the molten resin 52 supplied at this time can be supplied to the upper surface of the heat generating unit 46 (on the upper mold 50 side). Thereafter, after compressing as shown in the figures (B) and (C) to form the first molding layer 41, the upper mold 50 is opened halfway. At this time, the heating element unit 46 is bonded to the molding surface side, that is, the upper mold 50 and opened, so a certain amount of molten resin 52 is again supplied from the gate 54 of the lower mold 51 and compressed.
A molded layer 42 is obtained, and a heating element unit 46 is included between each molded layer 41 and 42 and bonded together.

[0014] In general injection molding, the molten resin 52 is molded at high temperature and pressure, so the heating element unit 46 breaks apart due to the temperature, injection pressure, and flow pressure of the molten resin 52, and the heating element unit 46 could not be uniformly molded in one piece. For this reason, the molding configuration shown in Utility Model Application No. 63-199699 has been proposed, but it is a high-pressure molding method, uses different synthetic resin materials for the front and back surfaces, and requires at least two molding machines and molds. It is not efficient.

However, the present invention is an application of the above-mentioned low-pressure molding method, and the pressure and flow pressure are about 1/10 lower than that of the above-mentioned general injection molding. It can be placed in the position of moreover,
Since the joining structure between the front surface and the back surface of the toilet seat main body 40 is not based on ultrasonic waves or thermal welding, there is no need for the conventional shape restrictions that make the back surface 14 of the back plate a permanent hole, and the shape of the toilet seat can be set freely. Become. Therefore, with respect to the substantially horizontal top surface 16 of the toilet facing the toilet bowl part 21, the toilet seat inner peripheral part 48 is extended in an inclined shape from the toilet seat outer peripheral part 49 toward the toilet bowl bowl part 21, so as to be close to the toilet bowl edge 22. It can be configured as follows.

FIG. 3 shows the state during cleaning when the heated toilet seat of the present invention is used as a cleansing toilet seat. That is, since the toilet seat inner peripheral portion 48 closes the gap between the toilet bowl top surface 16 and the toilet seat back surface, scattering of dirty water 18 such as washing water is prevented. Therefore, the user will not be splashed with waste water 18 during use, making it more sanitary. Further, since the inner peripheral portion 48 of the toilet seat is inclined toward the toilet ball portion 21 and extends along the shape of the buttocks, the seat is comfortable to sit on, and a comfortable feeling of use can be obtained.

[0017]

[Effects of the Invention] As is clear from the above description, the heated toilet seat of the present invention provides the following effects. (1) The shape of the toilet seat body can be freely set according to the shape of the buttocks, and a heated toilet seat that is comfortable to sit on can be provided. (2) The inner periphery of the toilet seat main body can be configured to extend from the outer periphery toward the bowl bowl in an inclined manner so as to be close to the rim of the toilet bowl, so that splashed water and sewage during flushing on the toilet seat can be avoided by the user. It is hygienic and prevents this. (3) The conventional step of welding the two parts of the toilet seat body and the back plate is no longer necessary, making it possible to reduce the number of parts and man-hours. (4) By integrating with synthetic resin, waterproofness and insulation properties can be imparted at the same time, so insulation of the parts themselves such as the heating element becomes unnecessary.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a heated toilet seat according to an embodiment of the present invention.

[
Figure 2: A cutaway plan view of the back of the heated toilet seat with a portion cut away.

[Figure 3] Cross-sectional view showing the cleaning state when the heated toilet seat is applied to a clean toilet seat

[Fig. 4] (A), (B), and (C) are cross-sectional views of a process model to explain the molding process of the toilet seat.

[Figure 5] External perspective view of the installed state of a conventional heated toilet seat

[Figure 6] Sectional view of section A in Figure 5 of the heated toilet seat

[Figure 7] Cross-sectional view showing the cleaning state when the heated toilet seat is applied to a clean toilet seat

[Fig. 8] (A), (B), and (C) are process model cross-sectional views for explaining the molding process of the conventional low-pressure press molding method.

[Explanation of symbols]

16 Top surface of toilet bowl 21　Toilet bowl part 22 Toilet bowl rim 40 Toilet seat body 41 First molding layer 42 Second molding layer 43 Heating element 44 Temperature sensing element 45 Connection wiring member 46 Heating element unit 48 Toilet seat inner periphery (inner periphery) 49 Toilet seat outer periphery (outer periphery)

Claims (1)

[Claims] 1. A first molded layer made of synthetic resin that constitutes the front surface of the toilet seat body, a second molded layer that constitutes the back surface, and a string-like molded layer disposed between the first and second molded layers. Alternatively, the first and second molded layers containing the heating element unit include a planar heating element, a temperature sensing element, and a heating element unit consisting of a wiring member for connecting them, and the first and second molded layers have a substantially arc-shaped cross section. , and the flat surface thereof is integrally formed under low pressure into a substantially horseshoe shape or substantially O-shape, and with respect to the top surface of the toilet facing the toilet bowl part, the inner peripheral part of the toilet seat main body extends in an inclined shape from the outer peripheral part to the toilet bowl ball part. A heated toilet seat configured to be close to the rim of the toilet bowl.