JP2003339576A - Automatic opening/closing apparatus for toilet seat and toilet cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a drive motor and a transmission means from being overloaded by the contact of an obstruction during the operation of a toilet cover or a toilet seat. <P>SOLUTION: This automatic opening/closing apparatus for the toilet seat and toilet cover is provided with the drive motor 3 for driving the toilet cover 1 and/or the toilet seat 2 to open/close; the transmission means 4 for reducing speed to transmit power from the drive motor 3 to the toilet cover 1 and/or the toilet seat 2; and a rotary motion detecting means 5 constituted in either one of lines from an output shaft of the drive motor to the toilet cover 1 and/or the toilet seat 2 through the transmission means 4 to detect the presence of rotary motion of the drive motor 3. The apparatus is provided with a control means 6 for controlling the rotating direction of the drive motor 3 to switch the opening operation and closing operation of the toilet cover 1 and/or toilet seat 2, determining detected information from the rotary motion detecting means 5 by angle variation and time width, performing lock detection processing when determining the state of no rotary motion by comparison with lock detecting conditions, and reversing the drive motor 3 to return the opening operation or closing operation of the toilet cover 1 and/or toilet seat 2 into the initial position. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic opening / closing device for a toilet seat / toilet lid in a toilet seat device with a local cleaning device, and more particularly, to increase the reliability of operation for obstacles during opening / closing of the toilet lid or toilet seat. It is related to the technology to achieve.

[0002]

2. Description of the Related Art Conventionally, as a toilet seat device equipped in a toilet bowl, a toilet seat device with a local cleaning device having a function of spraying cleaning water onto a local part of a human body is known. A toilet lid and a toilet seat are rotatably attached to this toilet seat device. The toilet lid and the toilet seat attached to the toilet seat device are configured to be rotatable about one end in the longitudinal direction of the rotation shaft having a substantially elliptical cross section as a support end, and a load ( The torque required for the rotating shaft when rotating at the support end is large, and the load is small during the closing operation.

In the past, focusing on this characteristic, an automatic opening / closing device for opening and closing a toilet lid and a toilet seat of this kind has been disclosed in, for example, Japanese Utility Model Laid-Open No. 61-147097. In the conventional example disclosed in Japanese Utility Model Laid-Open No. 61-147097, the motor is driven at a rated voltage when the toilet seat is opened and at a low voltage below the rated voltage when the toilet seat is closed. .

By the way, when the toilet seat and the toilet lid which are being opened and closed are stopped by an obstacle such as a person, the motor is overloaded, and the overload state continues to cause an overcurrent to continuously flow and the armature winding. There is a problem of burning out.

Therefore, the above-mentioned publication and Japanese Utility Model Laid-Open No. 55-1485.
Japanese Patent Publication No. 00, etc. discloses a technique in which a motor is made to communicate with a rotating shaft supporting a toilet lid and a toilet seat via a reduction gear and a clutch. Further, Japanese Utility Model Laid-Open No. 4-138397 discloses a technique of providing a motor rotation detecting means for stopping or reversely rotating the motor when there is no rotation of the motor.

However, in the case of using a clutch, it is a normal pressure friction clutch such as a friction plate, and when an overload that is slightly touched by human hands during opening and closing, something is still placed on the toilet lid. When an abnormal overload occurs, such as
A long-term overload condition continues and becomes a problem. Further, in the case where the rotation motion detecting means is provided, the motor is stopped or reversely rotated when it is not rotating, so that it is in a state where it is touched by a person, that is, when the motor is slightly rotating. May not be detected, resulting in a problem that the motor is continuously overloaded for a long time.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and in a case where an obstacle hits the toilet lid or the toilet seat to stop it when the toilet lid or the toilet seat is opened or closed. An object of the present invention is to provide an automatic opening / closing device for a toilet seat / toilet capable of completely taking measures against overload on a drive motor and transmission means.

[0008]

In order to solve the above problems, an automatic toilet seat / toilet lid opening / closing device according to the present invention includes a drive motor 3 for opening and closing the toilet lid 1 and / or the toilet seat 2.
Transmission means 4 for decelerating and transmitting the power from the drive motor 3 to the toilet lid 1 and / or toilet seat 2, and the toilet lid 1 and / or the output shaft of the drive motor 3 via the transmission means 4. Alternatively, a rotary motion detecting means 5 configured to be provided on either of the paths to the toilet seat 2 for detecting the presence / absence of rotary motion of the drive motor 3, and the rotation direction of the drive motor 3 are controlled to control the toilet lid 1.
And / or the opening motion and the closing motion of the toilet seat 2 are switched, and the detected information from the rotational movement detecting means 5 is judged by the angle change amount and the time width, and there is no rotational movement by comparing with the lock detection condition. When it is judged to be in the state, lock detection processing is performed, and the drive motor 3 is rotated in the reverse direction to move the toilet lid 1
And / or control means 6 for returning the opening or closing operation of the toilet seat 2 to the initial position. With such a configuration, when an obstacle hits the toilet lid 1 or the toilet seat 2 and stops when the toilet lid 1 or the toilet seat 2 is opened or closed, the detection information from the rotation motion detection means 5 is changed to an angle. This is detected based on the amount of change and the time width, lock detection processing is performed, and the drive motor 3 is rotated in the reverse direction to return the opening or closing operation of the toilet lid 1 or toilet seat 2 to the initial position, and the drive motor 3 and the transmission means 4 are detected. It is possible to prevent overload on.

A drive motor 3 for opening and closing the toilet lid 1 and / or the toilet seat 2, and a transmission for decelerating and transmitting the power from the drive motor 3 to the toilet lid 1 and / or the toilet seat 2. Rotation that is configured in any one of the path from the output shaft of the drive motor 3 to the toilet lid 1 and / or the toilet seat 2 via the transmission means 4, and detects the presence or absence of rotational movement of the drive motor 3. The number detection means and the rotation direction of the drive motor 3 are controlled to switch the opening operation and the closing operation of the toilet lid 1 and / or the toilet seat 2, and the detection information and the lock detection condition detected by the rotation number detection means. When it is determined that there is no rotational movement by comparison with, the lock detection process is performed, the drive motor 3 is rotated in the reverse direction, and the toilet lid 1 and / or
Alternatively, it may be provided with a control means 6 for returning the opening operation or the closing operation of the toilet seat 2 to the initial position. With such a configuration, when an obstacle hits the toilet lid 1 or the toilet seat 2 and stops when the toilet lid 1 or the toilet seat 2 is opened or closed, the rotation speed is detected by the rotation speed detection means. Is detected to perform lock detection processing, the drive motor 3 is rotated in the reverse direction to return the opening or closing operation of the toilet lid 1 or the toilet seat 2 to the initial position, and the drive motor 3 and the transmission means 4 are detected.
It is possible to prevent overload on.

When it is judged that there is no rotational movement,
Performs lock detection processing, reverses the drive motor 3,
Further, it is preferable to include a control unit 6 that performs a braking operation when reaching a predetermined angle and returns the opening operation or the closing operation of the toilet lid 1 and / or the toilet seat 2. With such a configuration, after the opening operation or the closing operation reaches a predetermined angle, the brake is applied, and for example, the impact of the toilet seat 2 or the toilet lid 1 colliding with the toilet bowl can be softened.

Further, the presence / absence of the cover of the toilet lid 1 and / or the toilet seat 2 is determined during the opening / closing movement, and the presence / absence of the rotational movement is determined based on the detection information, and the lock detection condition is changed. Alternatively, the lock detection process is preferably different depending on whether the toilet seat 2 is covered or not. With such a configuration, with or without the cover, when the obstruction hits the toilet lid 1 or the toilet seat 2 when the toilet lid 1 or the toilet seat 2 is opened or closed, the obstacle is surely stopped. Moreover, it is possible to prevent overload on the drive motor 3 and the transmission means 4.

Also, when it is judged that there is no rotational motion, lock detection processing is performed, and during the operation period until returning to the initial value, when lock release information is entered, lock release processing is performed and before lock detection processing. It is preferable to include the control means 6 for controlling so as to return to the above operation. With such a configuration, when the obstacle hits the toilet lid 1 or the toilet seat 2 and stops when the toilet lid 1 or the toilet seat 2 is opened or closed, an overload is applied to the drive motor 3 and the transmission means 4. Prevent
Moreover, when the unlocking information is entered when the obstacle is removed, the operation before the unlocking process is performed again and a predetermined opening or closing operation is performed.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

FIG. 3 shows a state in which the toilet seat device 9 is attached to the upper surface of the rear part of the toilet bowl 8. In the toilet seat device 9, the toilet lid 1 and the toilet seat 2 are rotatably attached to the main body 10 by the rotating shaft 11. . The main body portion 10 is internally provided with an opening / closing mechanism portion 12 for automatically rotating and opening / closing the toilet lid 1 and the toilet seat 2.
Further, there are cases where the local cleaning function unit is provided and cases where the local cleaning function unit is not provided. When the local cleaning function unit is provided, the toilet seat device 9 becomes the toilet seat device 9 with the local cleaning function.

FIGS. 1 and 2 show an opening / closing mechanism portion 12 installed inside the main body portion 10. The opening / closing mechanism section 12 includes a drive motor 3 and first, second, third, fourth, and fifth speed reducing means 14a, which are sequentially connected to the output shaft of the drive motor 3.
Transmission means 4 consisting of 14b, 14c, 14d, 14e
And the spring 13 coupled to the final speed reducer 14e constitute a main body, and the opening / closing mechanism 12 includes the main body 1
It is incorporated in a case 15 which is internally housed in 0.

The rotary shaft 11 is connected to the final reduction means 14e, and the toilet lid 1 and the toilet seat 2 are attached to the rotary shaft 11. In the embodiment shown in FIG. 5, which will be described later, the opening / closing mechanism section 12 is provided for the toilet lid 1 and the toilet seat 2, and therefore the drive motors 3 are the toilet lid drive motor 3a and the toilet seat drive motor 3b.

The spring 13 is a torsion spring, one end of which is hooked on a boss 16 provided on the case 15 and the other end of which is hooked on a gear constituting the fifth speed reducing means 14e. A biasing force is applied to the lid 1 and the toilet seat 2 in the opening direction to reduce the torque in the opening operation direction.

From the output shaft of the drive motor 3 to the transmission means 4
A rotary motion detecting means 5 for detecting the presence / absence of rotary motion of the drive motor 3 is provided on any of the paths to the toilet lid 1 and / or the toilet seat 2 via the. In the embodiment, one of the gears of the speed reducing means 4 (the gear forming the third speed reducing means 14c in the embodiment shown in FIG. 1) is coaxially mounted with the rotary volume forming the rotation motion detecting means 5. is there. As the rotary volume, there are a rotary volume 5a provided on the opening / closing mechanism 12 for the toilet lid and a rotary volume 5b provided on the opening / closing mechanism 12 for the toilet seat.

The relationship of the output voltage at each angle of the rotary volume which constitutes the rotational movement detecting means 5 is as shown in FIG. That is, when the toilet lid 1 or the toilet seat 2 is opened or closed, the operating state of the toilet lid 1 or the toilet seat 2 can be grasped by the change of the output voltage of the rotary volume.

FIG. 5 shows a circuit diagram for exciting the drive motor 3 in the present invention. In FIG. 5, 6 is a control means composed of a microcomputer, 17 is a motor drive composed of an integrated circuit, 17a, 17b, 17c and 17d are switching elements provided in the motor drive 3, 3a is a drive motor for a toilet lid, 3b is a toilet seat Drive motor, RY1 is a braking relay, RY2 is a toilet lid / toilet seat switching relay connected between the driving motor and the power source, 5a is a rotary volume for the toilet lid, 5b is a rotary volume for the toilet seat is there.

The drive control of the toilet lid drive motor 3a and the toilet seat drive motor 3b is performed by the control means 6, and when the output terminal A of the microcomputer constituting the control means 6 becomes H level, the switching element 17a of the motor drive 17 is provided. , 17
c to turn on, drive motor 3 (toilet lid drive motor 3
a, the toilet seat drive motor 3b) is rotated in the forward direction (hereinafter, the forward rotation is assumed to coincide with the direction in which the toilet lid 1 and the toilet seat 2 are opened). Further, when the output terminal B of the microcomputer becomes H level, the drive motor 3 (toilet lid drive motor 3a, toilet seat drive motor 3
b) is reversed (hereinafter, reversal shall coincide with the direction in which the toilet lid 1 and toilet seat 2 are closed). Also, the contact 1 of the relay RY2 for switching the toilet lid / toilet seat is controlled by the output terminal C of the microcomputer.
8a and 18b are switched to switch between the toilet lid drive motor 3a and the toilet seat drive motor 3b. When the output terminal C is at the L level, the contact 18a of the toilet lid / toilet seat switching relay RY2 is selected. Is connected, and the output terminal C is H
At the level, the contact 18b of the relay RY2 for switching the toilet lid / toilet seat is connected. The output terminal D of the microcomputer is for turning on and off the contact of the braking relay RY1, and when the output terminal D becomes H level, the contact of the braking relay RY1 is turned on to turn on the toilet lid drive motor 3a and the toilet seat drive motor. The both ends of 3b are short-circuited to brake the toilet lid drive motor 3a and the toilet seat drive motor 3b.

Next, the operation of the circuit in each operation will be described.

When the toilet lid 1 is opened, the output terminal A of the microcomputer goes high to turn on the switching elements 17a and 17c of the motor drive 17, and the output terminal B goes low and the output terminal C goes low. The level and the output terminal D are controlled to be at the L level, whereby Vc is applied to the toilet lid drive motor 3a, the toilet lid drive motor 3a rotates normally, and the toilet lid 1 opens.

When the toilet lid 1 is closed, the output terminal B of the microcomputer goes to H level to turn on the switching elements 17b and 17d of the motor drive 17, and the output terminal A goes to L level and the output terminal C. Is controlled to be at the L level and the output terminal D is at the L level, whereby Vc is applied to the toilet lid drive motor 3a, the toilet lid drive motor 3a reverses, and the toilet lid 1 closes.

When the toilet seat 2 is opened, the output terminal A of the microcomputer goes to H level to turn on the switching elements 17a and 17c of the motor drive 17, and the output terminal B goes to L level and the output terminal C goes to C. H level and toilet lid
The relay RY2 for switching the toilet seat is excited and the relay contact 1
It is controlled so as to be connected to 8b. This makes V
c is applied to the toilet seat drive motor 3b, the toilet seat drive motor 3b rotates normally, and the toilet seat 2 opens.

When the toilet seat 2 is closed, the output terminal B of the microcomputer goes to H level to turn on the switching elements 17b and 17d of the motor drive 17, and the output terminal A goes to L level and the output terminal C goes to C. H level and toilet lid
The relay RY2 for switching the toilet seat is excited and the relay contact 1
It is controlled so as to be connected to 8b. This makes V
c is applied to the toilet seat drive motor 3b, the toilet seat drive motor 3b rotates in the reverse direction, and the toilet seat 2 closes.

Further, in the braking operation, when the output terminal D becomes the H level, the contact of the braking relay RY1 is turned on, and the both ends of the toilet lid drive motor 3a and the toilet seat drive motor 3b are resisted. And short-circuits via this, thereby absorbing the current due to the back electromotive force.

Next, the operation of the toilet lid 1 and the toilet seat 2 when it hits an obstacle during the operation will be described.

For example, a case where an obstacle such as a human hand hits the toilet seat 2 during the opening operation of the toilet seat 2 will be described.

The relationship between the output voltage of the rotary volume 5b and the toilet seat angle in the normal operation of the toilet seat 2 is as shown in FIG. On the other hand, when an obstacle hits during the operation of the toilet seat 2, as shown in FIG. 7, there is a change in the rotary volume 5b at a certain set time t1, which is a set value ΔV.
When it is less than 1 (ΔV1> V / t1), it is determined that the microcomputer is locked, and lock detection processing is performed. Also, in the opposite direction to the opening direction, that is, when the movement is in the closing direction due to the influence of the obstacle even though the opening operation is being performed, and the value is changed by a certain set value ΔV2 or more (ΔV2 <V / t
Also in 1), the microcomputer determines that the lock is made and performs the lock detection process.

In the lock detection process, the output terminal A of the microcomputer is set to L level, the output to the toilet seat drive motor 3b is stopped, the output terminal B of the microcomputer is set to H level, and the toilet seat drive motor 3b is reversed. Thus, in this case, the toilet seat 2 is returned to the initial position, that is, the closed state with the angle of 0 °. In particular, after such an operation, when a certain set angle is reached, the output terminals A and B of the microcomputer are set to the L level, the output terminal C is maintained at the H level, and the output terminal D is set to the H level. By performing the braking operation, the impact of the toilet seat 2 on the toilet bowl 8 can be softened. FIG. 9 shows a time chart from the lock detection to the lock detection processing when an obstacle hits during the opening operation of the toilet seat 2 as described above, and FIG. 10 shows a flowchart thereof. Note that FIG. 8 shows a time chart in the normal opening operation of the toilet seat 2.

In the above embodiment, the case where the obstacle hits during the opening operation of the toilet seat 2 has been described, but the same operation is performed when the obstacle hits during the closing operation of the toilet lid 1. Further, even when an obstacle hits during the closing operation of the toilet seat 2 or when an obstacle hits during the opening operation of the toilet lid 1, the detection information from the rotation motion detecting means 5 is determined by the angle change amount and the time width. By comparing with the lock detection condition, when it is determined that there is no rotational motion, lock detection processing is performed, the drive motor 3 is rotated in the reverse direction, and the closing operation of the toilet lid 1 and / or the toilet seat 2 is performed at the initial position (that is, Control to return to the fully open position).

By the way, in the above embodiment, the lock detection is performed when the detection information from the rotation movement detecting means 5 is judged by the angle change amount and the time width, and it is judged by the comparison with the lock detection condition that there is no rotational movement. This is an example in which the control means 6 controls the drive motor 3 to perform reverse processing so as to return the opening operation or the closing operation of the toilet lid 1 and / or the toilet seat 2 to the initial position by performing reverse processing. The rotational speeds of the lid drive motor 3a and the toilet seat drive motor 3b) are directly detected by the rotational speed detection means (toilet lid rotational speed detection means, toilet seat rotational speed detection means).
The lock detection process is performed when it is determined that there is no rotational motion by comparing with the lock detection conditions.
The drive motor 3 may be reversed to control the opening or closing operation of the toilet lid 1 and / or the toilet seat 2 to the initial position by the control means 6. For example, in the case of directly detecting the rotation speed of the drive motor 3, the detected rotation speed n
It is also possible to compare certain set rotational speeds N, and when N> n, determine that the microcomputer is locked and perform the lock detection process. As the rotation speed detecting means for detecting the rotation speeds of the drive motor 3a and the toilet seat drive motor 3b, for example, a rotary encoder or a means for detecting the rotation speed by detecting a load current of the drive motor 3a or the toilet seat drive motor 3b And so on.

By the way, the opening speed and the closing speed of the toilet lid 1 and the toilet seat 2 change depending on whether or not the covers are attached to the toilet lid 1 and the toilet seat 2, that is, the presence or absence of the covers. Therefore, the data of the output voltage at each angle of the rotary volume for the normal opening and closing operations of the toilet lid 1 and the toilet seat 2 with and without the cover is accumulated in the control means 6 in advance as data. Well,
The output voltage of the rotary potentiometer at the time of opening and closing the toilet lid 1 and the toilet seat 2 determines whether the cover is attached or not, and when it is determined that the cover is not attached, the lock described above is performed. Detection conditions, namely ΔV1 and Δ
The set values of V2 and N may be changed. As a result, even when the cover is attached, the lock can be accurately detected.

When some information is input during the lock detection process, for example, when the reset switch is pushed, the control means 6 controls the lock detection process to be released and the normal operation is resumed. You may That is, the case where an obstacle is hit during the opening operation of the toilet seat 2 will be described as an example. When the toilet seat 2 is opened, the obstacle is hit and the lock detection is determined, the lock detection process is performed, and the toilet seat 2 is closed. Even if is changed, the control is performed so that the normal operation (in this case, the operation of opening the toilet seat 2) can be performed again by inserting the lock release information such as the reset button.

As described above, according to this embodiment, the output voltage of the rotary potentiometer constituting the rotary motion detecting means 5 attached to the gear constituting the third speed reducing means 14c connected to the drive motor 3 is detected. So, the toilet lid 1 and /
Alternatively, the presence or absence of rotational movement is recognized in both the opening and closing directions of the toilet seat 2. As a result, the first, second, third, fourth and fifth deceleration means 14a including the drive motor 3 and gears when locked,
It is possible to prevent overload on 14b, 14c, 14d, and 14e, and to take a highly reliable countermeasure against overload.

[0037]

As described above, in the invention according to claim 1 of the present invention, the drive motor is provided in any of the paths from the output shaft of the drive motor to the toilet lid and / or the toilet seat via the transmission means. Rotation detecting means for detecting the presence / absence of the rotational movement of the drive motor is provided, the rotation direction of the drive motor is controlled to switch the opening and closing operations of the toilet lid and / or the toilet seat, and When the detected information is judged by the amount of change in angle and the time width, and when it is judged that there is no rotational motion by comparing with the lock detection condition, lock detection processing is performed, and the drive motor is rotated in the reverse direction and the toilet lid and / or Since the control means for returning the opening or closing operation of the toilet seat to the initial position is provided, when an obstacle hits the toilet seat or the lid during the opening and closing operations and slips or stops,
The detection information from the rotational movement detection means is detected by the angle change amount and the time width to perform lock detection processing, and the drive motor is rotated in the reverse direction to return the opening or closing operation of the toilet lid or toilet seat to the initial position for driving. It is possible to prevent the motor and the transmission means from being overloaded.

Further, in the invention described in claim 2, in addition to the effect of the invention described in claim 1, a path from the output shaft of the drive motor to the toilet lid and / or the toilet seat via the transmission means. In any one of the above, a rotation speed detecting means for detecting the presence / absence of rotational movement of the drive motor is provided, and the rotation direction of the drive motor is controlled to switch between the opening operation and the closing operation of the toilet lid and / or the toilet seat. When it is determined that there is no rotational movement by comparing the detection information detected by the number detection means with the lock detection condition, lock detection processing is performed and the drive motor is rotated in reverse to open the toilet lid and / or the toilet seat. Alternatively, since the control means for returning the closing operation to the initial position is provided, when the obstacle hits the toilet seat or the lid during the opening operation and the closing operation to cause the slip or stop, the detection information from the rotation speed detecting means is included. To detect the number of rotations, perform lock detection processing, and reverse the drive motor to return the opening or closing operation of the toilet lid or toilet seat to the initial position to prevent overload on the drive motor and transmission means. Is.

Further, in the invention according to claim 3, in addition to the effect of the invention according to claim 1 or claim 2, when it is determined that there is no rotational motion, lock detection processing is performed, Since the drive motor is rotated in the reverse direction and a braking operation is performed when a predetermined angle is reached, and a control means for returning the opening operation or the closing operation of the toilet lid and / or the toilet seat is provided, the opening operation or the closing operation is predetermined. After the angle is reached, the brake is applied, and for example, the impact of the toilet seat or toilet lid colliding with the toilet bowl can be softened.

Further, in the invention of claim 4, in addition to the effect of the invention of claim 1 or 2, the presence or absence of the cover of the toilet lid and / or the toilet seat is determined during the opening / closing motion. , The lock detection condition is changed based on the detection information, the lock detection condition is changed, and the lock detection process is different depending on the presence or absence of the cover of the toilet lid and / or the toilet seat. In either case, prevent overloading of the drive motor and transmission means when an obstacle hits the toilet lid or the toilet seat when the toilet lid or toilet seat is opened or closed to stop it. Is something that can be done.

According to the invention of claim 5, in addition to the effect of the invention of claim 1 or claim 2, it is judged that there is no rotational motion, lock detection processing is performed, During the operation period until returning to the initial value, when lock release information is entered, it is equipped with control means that performs lock release processing and returns to the operation before the lock detection processing. Prevents overloading of the drive motor and transmission means when an obstacle hits the toilet lid or seat to stop during opening and closing operations, and unlock information is entered when the obstacle is removed. Then, the operation before the unlocking process can be performed again and the predetermined opening or closing operation can be performed, and the operation can be performed smoothly.

[Brief description of drawings]

FIG. 1 is a sectional view of an automatic opening / closing device for a toilet seat / lid of the present invention.

FIG. 2 is a cross-sectional view showing the transmission means of the above.

FIG. 3 is a side view showing a state in which the above toilet seat device is attached to a toilet bowl.

FIG. 4 is a graph showing the relationship of output voltage at each angle of the rotary volume control.

FIG. 5 is a circuit diagram for exciting the drive motor of the above.

FIG. 6 is a graph showing the relationship between the output voltage of the rotary volume and the toilet seat angle in the normal operation of the toilet seat.

FIG. 7 is a graph showing the relationship between the output voltage of the rotary volume and the toilet seat angle during operation when an obstacle hits the toilet seat.

FIG. 8 is a time chart in the normal opening operation of the toilet seat of the above.

FIG. 9 is a time chart from lock detection to lock detection processing when an obstacle hits during the toilet seat opening operation of the above.

FIG. 10 is a flowchart from lock detection to lock detection processing when an obstacle hits during the toilet seat opening operation of the above.

[Explanation of symbols]

1 toilet lid 2 toilet seat 3 drive motor 4 Communication means 5 Rotational motion detection means 6 Control means

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shinji Fujii             1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd.             Inside the company F-term (reference) 2D037 AA02 AB07 AB13 AB16

Claims (5)

[Claims] 1. A drive motor for opening and closing a toilet lid and / or a toilet seat, and a transmission means for decelerating and transmitting power from the drive motor to the toilet lid and / or the toilet seat.
A rotation motion detecting means for detecting the presence / absence of rotary motion of the drive motor, the rotation motion detecting means being configured on one of the paths from the output shaft of the drive motor to the toilet lid and / or the toilet seat via the transmitting means; The opening direction and the closing operation of the toilet lid and / or the toilet seat are switched by controlling the rotation direction, and the detection information from the rotation movement detecting means is judged by the angle change amount and the time width and compared with the lock detection condition. When it is determined that there is no rotational motion, the lock detection processing is performed, and the drive motor is reversely rotated to return the opening or closing operation of the toilet lid and / or the toilet seat to the initial position. An automatic opening and closing device for toilet seats and lids. 2. A drive motor for opening and closing a toilet lid and / or a toilet seat, and a transmission means for decelerating and transmitting the power from the drive motor to the toilet lid and / or the toilet seat.
A rotation speed detecting means for detecting the presence / absence of rotational movement of the drive motor, the rotation speed detecting means being configured on one of the paths from the output shaft of the drive motor to the toilet lid and / or the toilet seat via the transmitting means; It is determined that there is no rotational movement by controlling the rotational direction to switch between opening and closing operations of the toilet lid and / or the toilet seat, and comparing the detection information detected by the rotational speed detecting means with the lock detection condition. When I did
Automatic opening / closing of the toilet seat / toilet lid, which includes lock detection processing and reverse rotation of the drive motor to return the opening / closing operation of the toilet lid and / or toilet seat to the initial position. apparatus. 3. When it is determined that there is no rotational motion, lock detection processing is performed, the drive motor is reversely rotated, and when a predetermined angle is reached, a braking operation is performed, and the toilet lid and / or toilet seat The automatic opening / closing device for a toilet seat / lid according to claim 1 or 2, further comprising control means for returning the opening operation or the closing operation. 4. The presence / absence of a cover of a toilet lid and / or a toilet seat is determined at the time of opening / closing motion, the presence / absence of a rotational motion is determined based on the detection information, and the lock detection condition is changed to detect the toilet lid and / or the toilet seat. The automatic opening / closing device for a toilet seat / lid according to claim 1 or 2, wherein the lock detection process is different depending on the presence or absence of the cover. 5. The lock detection process is performed when it is determined that there is no rotational motion, and the lock release process is performed when the lock release information is input during the operation period until the initial value is returned to before the lock detection process. The automatic opening / closing device for the toilet seat / toilet lid according to claim 1 or 2, further comprising control means for controlling the operation to return to the above operation.