JPH03891B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a toilet seat device used in a Western-style toilet bowl, etc., which has a function of washing private parts with warm water or the like after defecating and then drying them with warm air.

Conventional configuration and its problems Conventionally, in this type of device, as shown in FIG. A drying device A is provided in which a blower 8 including an impeller 6 and a motor 7 for driving the impeller 6 and an electric heater 9 are built in the ventilation path 5. This drying device A is placed behind the upper part of the toilet bowl 1, and by energizing the electric heater 9 and operating the blower 8, air flows from the air supply port 3 to the discharge port 2 (indicated by the solid line arrow in the figure). ) was heated with an electric heater 9 and then discharged into the toilet bowl 1 from the discharge port 2 to dry the private parts. On the other hand, in order to direct hot air for drying in the local direction, the discharge port 2 has a cross-sectional area that gradually decreases as it reaches downstream, as shown in FIG. It was configured so that it was directed towards the local area.

However, in such a configuration, since the direction of the airflow discharged from the discharge port 2 is always in the same direction, the airflow is not sufficiently warmed by the electric heater 9 when drying of the local area starts. There was a problem in that the cold air flowed to local areas, causing discomfort to the user.

Purpose of the Invention The present invention solves the conventional problems by disposing a shape memory alloy in the hot air outlet for local drying disposed in the toilet seat device to improve the air flow during cold air and hot air. The purpose of this is to prevent cold air from hitting local areas by changing the direction of discharge.

Structure of the Invention In order to achieve this object, the present invention provides a discharge port that opens into the toilet bowl at the downstream end of the downstream ventilation path of an electric heater used for local drying, and forms an arc-shaped upper wall surface of the discharge port. A bias protrusion is provided on the lower wall surface opposite to this to provide a ventilation path between the bias protrusion and the adhesion wall. A bias spring is disposed between the bias spring and the lower wall surface, so that the bias protrusion can be moved in the vertical direction.

According to the above configuration, when the airflow is discharged from the discharge port, the discharge direction is set downward during cold air, and
When hot air is used, it can be directed towards local areas.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIGS. 3 to 5. FIG. 3 is a partial cross-sectional view of the side surface of the device B disposed on the toilet bowl 11, and FIGS. 4 and 5 are cross-sectional views of the main parts thereof. In addition, in FIGS. 3 to 5, solid line arrows indicate the flow of hot air for local drying, and FIGS. 3 and 4 show when hot air is passing through, and FIG. 5 shows when cold air is passing through.

As shown in FIGS. 3 and 4, a blower 18 for blowing hot air for local drying and an electric heater 19 for heating the air are arranged inside the exterior 14, and the electric heater 1
The downstream end of the ventilation passage 15 provided on the downstream side of the toilet bowl 1
The discharge port 12 has an upper wall surface formed in an arc shape to form an adhesion wall 13, and a lower wall surface 16 opposite thereto. , a bias protrusion 14 is provided to have a ventilation passage 17 between it and the adhesion wall 13 . The bias protrusion 14 uses a shape memory alloy molded into a plate shape, and a bias spring 20 is connected between the bias protrusion 14 and the lower wall surface 16. 16 and is configured to be movable in the vertical direction.

In this configuration, when the air blown by the blower 18 passes through the electric heater 19, it is heated and becomes warm air, which is discharged from the discharge port 12 into the toilet bowl 11.
Used for local drying. On the other hand, since the upper wall surface of the discharge port 12 is formed into an arc shape and the bias protrusion 14 is provided opposite to this, the blower 15
The airflow flowing inside flows along the surface of the adhesion wall 13 due to the influence of the bias protrusion 14, and the airflow flows through the discharge port 1.
The direction of the air flow discharged from 2 is approximately tangential to the circular arc. That is, a flow is formed along the surface of the adhesion wall 13 due to the Coanda effect. However, the Coanda effect changes depending on the position of the bias protrusion 14. That is, the Coanda effect in which the bias protrusion 14 moves downward becomes weaker and changes in the ejection direction. Therefore, when cold air is being used, the bias spring 20 moves the bias protrusion 14 downward as shown in FIG. 5, and the cold air is discharged downward. As shown, the bias protrusion 14 moves upward due to the force of the shape memory alloy contracting, and hot air is discharged upward to be used for drying the local area.

Effects of the Invention According to the present invention, the upper wall surface of the discharge port is formed into an arc shape, and a bias protrusion is provided opposite to the upper wall surface of the discharge port, and the bias protrusion is made of a shape memory alloy, and is movable in the vertical direction with a bias spring. Because of this structure, the Coanda effect can be changed depending on the temperature of the air flow passing through it. Therefore, when hot air is being used, warm air can be discharged in a local direction to dry the local area, and when cold air is being discharged, it can be discharged downward to prevent the cold air from coming into contact with the user, thereby providing a comfortable toilet seat device. It is something that can be done.

[Brief explanation of drawings]

FIG. 1 is a partially sectional plan view of a conventional toilet seat device, FIG. 2 is a sectional view of its main parts, FIG. 3 is a partially sectional side view of a toilet seat device according to an embodiment of the present invention, and FIGS. The figure is a cross-sectional side view of the main part. B...Toilet seat device, 11...Toilet bowl, 12...Discharge port, 13...Adhesion wall, 14...Bias protrusion, 1
5...Ventilation path, 16...Lower wall surface, 17...Ventilation path, 18...Blower, 20...Bias spring.

Claims (1)

[Claims] 1 It has an air blower and an electric heater, and a hot air outlet opened into the toilet bowl is provided at the downstream end of the ventilation path on the downstream side of the electric heater, and the upper wall surface of the outlet is formed in an arc shape to allow the air to adhere to the toilet. A toilet seat device comprising a wall, a bias protrusion is provided on the lower wall surface facing the wall, the bias protrusion is made of a shape memory alloy, and is configured to be movable up and down.