JPH04138397U - Toilet seat/toilet lid automatic opening/closing device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to provide an automatic toilet seat/toilet lid opening/closing device that completely prevents overloading of the toilet seat/toilet lid. [Structure] Rotary motion detection means detects the presence or absence of rotational motion of the drive motor, and when detection information from the rotation motion detection means indicates no rotational motion, the drive motor is stopped or reversely rotated to detect the toilet lid and the toilet lid. A control means for returning the toilet seat to its initial position for opening or closing is provided. When the detection information from the rotational movement detection means indicates that there is no rotational movement, the drive motor can be stopped or reversed, thereby protecting the drive motor from overload.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to an automatic opening/closing device suitable for opening and closing the toilet seat and toilet lid of a shower-type toilet. In particular, the aim is to improve the reliability of the operation of the toilet seat and toilet lid against obstacles during opening and closing. Regarding automatic toilet seat and toilet lid opening/closing devices.

0002

[Conventional technology]

A shower-type toilet that eliminates the manual opening and closing of the toilet seat and toilet lid has been proposed. There is. The toilet seat/toilet lid (hereinafter referred to as the toilet seat, etc.) is approximately elliptical at one end in the longitudinal direction. The support end is designed to be rotatable, and during opening operation, the load (rotating at the support end) is The torque required on the shaft when closing is large, and the load is small during closing. be. Conventionally, automatic opening and closing devices for opening and closing toilet seats, etc. of this type have focused on this characteristic. , for example, as disclosed in Japanese Utility Model Application Publication No. 61-147097, the opening movement of the toilet seat When operating, the motor is driven at the rated voltage, and when the toilet seat is closed, the motor is driven at a low voltage below the rated voltage. There is technology to drive it.

0003 By the way, if the toilet seat or toilet lid is stopped in the middle of opening or closing by an obstacle such as a person, , when the motor is overloaded and the overload condition continues, overcurrent flows continuously. The armature winding will burn out. Therefore, the above publications and Utility Model Application Publication No. 148500/1983 Publications etc. state that the motor is connected to a rotating shaft that supports the toilet seat and toilet lid by means of deceleration means and a clutch. A configuration is disclosed in which the communication is made via the .

0004

[Problem that the idea aims to solve]

However, the clutch disclosed in the above-mentioned publication has friction plates, etc. that are normally pressurized. It is a friction clutch, so it may not be useful if there is an overload that is slightly touched by hand during opening or closing. In the case of an abnormal load such as something being placed on the toilet lid, the overload condition continues for a long time. It becomes a problem.

[0005] Additionally, clutches that disconnect the motor from the load when overloaded require large-scale equipment. This makes it difficult to employ. Furthermore, motors with overcurrent protection circuits are available, but they have the disadvantage of being expensive. Therefore, the present invention has developed this type of device without adding a clutch or overcurrent protection circuit. Toilet seats and toilet lids that can completely take measures against overload using only the means commonly used for equipment. The purpose is to provide dynamic opening and closing devices.

[0006]

[Means to solve the problem]

The present invention includes a drive motor for opening and closing the toilet lid and the toilet seat, and a drive motor for opening and closing the toilet lid and the toilet seat. a transmission means for decelerating and transmitting the power from the drive motor to the toilet seat; A structure is installed in any of the paths from the output shaft of the controller to the toilet lid and the toilet seat via the transmission means. rotational motion detection means for detecting the presence or absence of rotational motion of the drive motor; Controls the rotational direction of the motor to switch between opening and closing the toilet lid and seat. At the same time, when the detection information from the rotational movement detection means indicates a state where there is no rotational movement, , the drive motor is stopped or reversely rotated to open or close the toilet lid and the toilet seat; control means for stopping the operation or returning it to the initial state.

[0007] Note that a DC brush motor, stepping motor, etc. is used as the drive motor. Ru.

[0008]

[Effect]

According to the above configuration, the control means configured by, for example, a microcomputer, Enter the step for monitoring the detection information from the motor rotation detection means, and then When the detection information from the rotational movement detection means indicates no rotational movement, the drive motor is stopped. Stop or reverse rotation. This prevents the toilet lid and seat from opening or closing. If the drive motor is stopped due to an obstacle, the drive motor will stop rotating or be reversed and return to its original state. It can be returned to the fully closed or fully open position.

[0009]

【Example】 Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments. Figures 1 to 3, Figure 4, Figure 7 and Figure 8 show the mechanism of the automatic toilet seat/toilet lid opening/closing device according to the present invention. The structure of the structure is shown, and FIG. 9 shows the structure of the circuit section of this device. In addition, Figure 7 shows this device. It is a schematic plan view of the whole.

0010 First, FIGS. 1 and 2 show a main body unit (not shown) fixedly provided at the rear of the toilet bowl. A toilet seat 11, a toilet lid 12, and a toilet seat 13 are shown. The toilet lid 12 and the toilet seat 13 are A predetermined selection combination (toilet lid 1 2 and toilet seat 13 together, and opening and closing only the toilet lid 12). It is supported by Noh.

[0011] The main unit 11 includes a unit 1 for controlling opening and closing of the toilet lid 12 and the toilet seat 13. 5 is built-in. The opening/closing unit 15 includes a drive motor 21 (hereinafter referred to as motor). ) and a worm and spur gear connected sequentially to the output shaft 211 of the motor 21. A transmission means consisting of first, second and third deceleration means 22, 23 and 24, and a final deceleration means an output gear 25 coupled to the worm 24 and coaxially supported on the rotating shaft 14; is included as a main component.

0012 By the way, the rotational motion detection means 30 for detecting the presence or absence of rotational motion of the drive motor 21 is , the object to be detected is placed directly on the output shaft 211 side of the drive motor 21, and the opening/closing unit housing is It consists of a detection body attached to the side of the sensor. Here, the orbital integral is used as the detected object. A type FG permanent magnet 30a (hereinafter referred to as FG permanent magnet) is coaxially attached to the output shaft 211. The Hall IC30b is supported and installed in the opening/closing unit housing as a detection object. Ru. The combination of these FG permanent magnets 30a and Hall IC 30b is shown in FIG. In other words, a predetermined number of minute arc-shaped magnets are connected in a circular manner with alternating polarity. Due to this The detection output from the Hall IC 30b is as shown in Figure 4 when the rotation speed is constant. , becomes a constant frequency clock signal.

[0013] In addition, the mode detection means for selecting the open operation mode or the close operation mode outputs Configured by attaching the detected object to the gear 25 side and the detecting object to the opening/closing unit housing side. has been done. The object to be detected is a permanent magnet 26a that is divided into 180° two parts, an N pole and an S pole. The sensing object is the Hall IC 26b. Two-part permanent magnet 26a and Hall IC 26b have a positional relationship as shown in FIG. That is, the toilet lid 12 and the toilet seat 13 The total operating angle range is 90°, and the clockwise C direction in the figure is the toilet lid 12 and toilet seat 1. 3 is the direction to open the lid, the opposite direction D is the direction to close the lid, and the toilet lid 12 and toilet seat 13 are fully closed. The angular position at the lid position is expressed as an absolute angle of 0°, and the fully open position is expressed as an absolute angle of 90°. Then, the position of the Hall IC 26b at 0° and 90° is the boundary line between the N and S poles ( The position is 45° symmetrical about the diameter line). As a result, Hall IC 26b For example, during the opening operation, the first half is at an angle of 45°, as shown in 26b-C in Figure 6. A signal that exhibits a high level in the range and changes to a low level in the latter half of the 45° angle range. 26b-D, which is opposite to the signal 26b-C, is output during the closing operation. A signal is output. As a result, when the signal from Hall IC 26b is at high level, , the toilet lid is in the open position when the operating switch is turned on, so it does not operate. , operates only when the close operation switch is ON. The same applies when the toilet lid is in the closed position.

[0014] By the way, the rotating shaft 14 protrudes from both sides of the opening/closing unit housing. It penetrates through the shaft and is pivoted to allow sliding and rotational movement in the thrust direction AB (see Figure 1). There is. Between the protruding end and the boss 27 fixed to the opening/closing unit housing, A spring 28 is moored. Spring 28 is a torsion spring, one of which is One end is hooked to the boss 27, and the other end is hooked to the rotating shaft 14 by piercing. this Due to the configuration, a biasing force is applied to the toilet lid 12 and the toilet seat 13 in the direction of opening the lid, thereby preventing the opening operation. The purpose is to reduce directional torque. The spring 28 will be explained next. The elastic force causes the rotating shaft 14 to move away from the toilet lid 12 and the toilet seat 13 in the direction B. is also energized.

[0015] Next, apart from the gist of the present invention, the toilet lid 12 and the toilet seat 13 are connected by the rotating shaft 14. The means for switching and opening/closing a predetermined selection combination is constructed as shown in FIG. child This means is such that the other end of the rotating shaft 14 is used as a support shaft for the toilet lid 12 and the toilet seat 13, or the toilet lid 1 Switch whether only 2 is used as the support shaft. At the other end of the rotating shaft 14, there is a 180° opposing position. Bank-like protrusions 141, 141 are formed in the radial direction. Corresponding to the shape of this other end , holes 121 and 131 of the same shape are formed on the sides of the rear part of the toilet lid 12 and the toilet seat 13. to be accomplished. The other end having the protrusions 141, 141 is connected to the rotating shaft 14 as described above. By selectively sliding in the load direction AB, the toilet lid 12 is loosely fitted only into the perforation 121. It can be switched between a state in which the toilet lid 12 and a state in which it is loosely fitted into the perforations 131 of the toilet seat 13 are provided. It has become. As a result, when opening both the toilet lid 12 and the toilet seat 13, the rotation axis When the other end of 14 loosely fits into the holes 121 and 131 and only the toilet lid 12 is opened and closed, , the other end of the rotating shaft 14 is loosely fitted into the borehole 121 only. The above thrust of the rotating shaft 14 The movement is carried out within the opening/closing unit 15 using the rotating shaft 14 as a plunger. A coil 29 (using a magnetic material on one end side of the rotating shaft) and the above-mentioned spring 28. That is, the other end of the rotating shaft 14 is loosely inserted into the holes 121 and 131. When fitting, the coil 29 is energized so that the rotating shaft 14 resists the force of the spring 28. If the other end of the rotating shaft 14 is loosely fitted into the hole 121 by sliding it in the A direction, The coil 29 is de-energized, and the rotating shaft 14 is slid in the direction B by the force of the spring 28.

[0016] In addition, in FIG. 8, 16 is a hot air fan, and 17 is a nozzle for bidet cleaning and anal cleaning. 18 is a hot water tank, 19 is a water supply pipe, and 20 is a cleaning flow rate control valve. Next, the configuration of the circuit section will be explained with reference to FIG. FIG. 9 shows a configuration for exciting the motor 21, which is performed by the microcomputer 31. Ho The ICs 26b and 30b are each driven by a voltage source Vcc, and their outputs are at a predetermined level. The signals are led to input terminals T1 and T2 of the microcomputer 31 via an interface circuit. The microcomputer 31 rotates the motor 21 in the forward direction from the output terminal T3 (hereinafter referred to as opening the toilet seat and toilet lid). The signal 31a is derived from the motor 2 from the output terminal T4. 1 (hereinafter, the direction corresponds to the direction in which the toilet seat/toilet lid is closed) signal 31 Derive b. The signals 31a and 31b are respectively routed through the drive circuit 32 to the first relay RY1 and second relay RY2. By the first relay RY1 The relay switch SW1 is controlled by the first relay RY1 when it is deenergized (hereinafter referred to as O When FF), the B contact is selectively connected, and when energized (hereinafter referred to as ON), the A contact is connected. Select and connect points. Relay switch SW controlled by second relay RY2 The same applies to 2. The relay switch SW1 connects one end of the motor 21 and the positive side of the DC power supply 33. The relay switch SW2 is connected between the other end of the motor 21 and the DC power supply. It is connected between the negative electrode terminal of 33 and the negative electrode terminal of 33.

[0017] The present invention is constructed as described above, and next, the operation against obstacles is shown in FIGS. Refer to and explain. Figure 10 shows the operation during normal opening operation, and Figure 11 shows the operation when there is an obstacle. 3 is a time chart showing the operation when If there are no obstacles, for example, the toilet seat and toilet lid open/close at time t0, as shown in Figure 10. By operating the operation switch, signals 31a and 31b are generated, and the first relay R Y1 turns on, second relay RY2 turns off, and the positive terminal of DC power supply 33 → relay - Switch SW1 → Motor 21 → Relay switch SW2 → Negative terminal of DC power supply 33 Excitation current flows in the direction C' to the motor 21 in the child path, and the toilet lid 12 and the toilet seat 13 are Can be opened from fully closed position to fully open position. At this time, the output from the Hall IC 30b The input clock signal continues to be generated constantly, and if the motor 21 is stopped due to overload. Therefore, the microcomputer 31 does not execute the opening/closing/stopping or reversing operation according to the present invention. Not done. Note that during the closing operation, the first relay RY1 is turned off and the second relay R is turned off. Y2 turns on and motor current flows in the D' direction.

[0018] For example, during the opening operation, if an obstacle such as a human hand hits the toilet lid 12 while it is being opened, It is like this. In other words, if an obstacle hits at time t1 in FIG. Lock signal stops. The microcomputer 31 recognizes that this clock signal has stopped. Knowing this, the signal 31a derived from the output terminal T3 is changed, and the first relay RY1 is activated. Turn it off. This cuts off the motor current path, stops the motor, and The lid 12 and the toilet seat 13 will stop at the angular position where they come into contact with the obstacle.

[0019] Next, as another motor protection method of the present invention, the counter built in the microcomputer 31 Explain how to use the data. 12 and 13 show the operation when using the counter in the microcomputer 31. That is, in this embodiment, the toilet lid 12 and the toilet seat 13 hit the obstacle from their initial positions. The clock signals (n pieces) up to the angular position corresponding to time t1 are sent to the microcomputer 31. The counter counts the time required to determine whether there is an obstacle after t1. After that, the motor 21 is rotated in the reverse direction for a period of counting down by the same count number n. be.

[0020] In FIG. 13, the toilet seat/toilet lid opening/closing operation switch is turned on in step S1. When the opening operation mode or the closing operation mode is established in step S2. Microcomputer 3 1 outputs a signal to drive the motor 21 in step S2, and then outputs a signal to drive the motor 21 in step S3. (Clock signal presence/absence determination) is executed periodically. In step S3, "clock signal" If it is determined that there is no signal, the motor stopping steps of steps S4 to S8 are executed. Ru. Steps S4→S5→S8 are steps during normal operation when there are no obstacles. Ste Steps S4→S5→S6→S8 are counted when the opening or closing operation is performed normally. It is determined whether the set value of the clock signal pulse to be output is equal to the set value (S5), and whether it is equal to the set value When the motor is judged to have returned to the fully open or fully closed position, which is the reference position for opening and closing, This step is to stop the data. Steps S4 → S5 → S6 → S7 → S8 are failure This step is to reverse the motor 21 from the position stopped by the object.

[0021] In this way, according to this embodiment, there is no need to add a clutch, overcurrent protection circuit, etc. Therefore, reliable overload countermeasures can be implemented only by means commonly used for this type of equipment. I can.

[0022]

[Effect of the idea]

As described above, according to the present invention, obstacles may occur during opening and closing operations. Even if the toilet seat/toilet lid stops, do not stop it at that angular position or return it to its original initial position. Therefore, there is no burden on the motor.

[Submission date] September 16, 1992

[Procedural amendment 1]

[Name of document to be amended] Specification

[Correction target item name] 0013

[Correction method] Change

[Correction details]

[0013]Moreover, the mode detection means 26 for selecting the open operation mode or the close operation mode is constructed by attaching a detected object to the output gear 25 side and a detecting object to the opening/closing unit housing side. The object to be detected is a permanent magnet 26a divided into two parts of 180° with N and S poles, and the object to be detected is a Hall IC 26b. The two-segment permanent magnet 26a and the Hall IC 26b have a positional relationship as shown in FIG. In other words, the total operating angle range of the toilet lid 12 and the toilet seat 13 is 90 degrees, and in the figure, the clockwise C direction is the direction in which the toilet lid 12 and the toilet seat 13 open, and the opposite D direction is the lid closing direction. If the angular position when the lid 12 and toilet seat 13 are in the fully closed lid position is expressed as an absolute angle of 0°, and the fully open position is expressed as an absolute angle of 90°, then the position of the Hall IC 26b at 0° and 90° is the N pole. The position is 45° symmetrical about the boundary line (diameter line) of the S pole. As a result, the Hall IC 2 6b outputs a signal that exhibits a high level in the first half of the angular range of 45 degrees and changes to a low level in the second half of the angular range of 45 degrees, as shown in 26b-C in FIG. During the closing operation, signals such as those shown in FIG. 26b-D, which are opposite to the signals 26b-C, are output. As a result, when the signal from the Hall IC 26b is at a high level, the toilet lid does not operate when the opening operation switch of the operation switch is turned on because it is in the open position, but it operates only when the closing operation switch is turned on. The same applies when the toilet lid is in the closed position.

[Brief explanation of drawings]

[Figure 1] A configuration diagram showing the mechanism of the automatic toilet seat/toilet lid opening/closing device according to the present invention.

[Figure 2] Configuration diagram of the device in Figure 1 viewed from direction E

[Fig. 3] An explanatory diagram illustrating the rotational movement detection means used in the above embodiment.

[Figure 4] Signal diagram showing the output of the rotation detection means

[Figure 5] Explanatory diagram also explaining the mode detection means

[Figure 6] Signal diagram showing the output of the mode detection means above

[Figure 7] Perspective view showing the relationship between the rotating shaft, toilet lid, and toilet seat

[Figure 8] Overall schematic diagram of the device in Figure 1

[Figure 9] Circuit diagram showing the configuration of the circuit section of the device in Figure 1

[Figure 10] Time chart showing the opening operation of the device in Figure 1

[Figure 11] Time chart showing the closing operation of the device in Figure 1

[Figure 12] Time chart showing another operation of the device in Figure 1

[Figure 13] Flowchart showing the operation of the above embodiment as well.

[Explanation of symbols]

11─Main unit, 12─Toilet lid, 13─Toilet seat, 14
─Rotation axis, 15─Opening/closing unit 15, 21─Motor, 2
2, 23, 24—Deceleration means (transmission means), 25—Output gear, 26a—Permanent magnet 26a (rotational motion detection means), 26
b─Hall IC, 28─spring, 29─coil, 3
0-Rotational motion detection means. 31 - Microcomputer, RY1 - First relay, RY2 - Second relay, 33 - DC power supply 33, SW1, SW2 - Relay switch.

──────────────────────────────────────────────── ───

[Procedural amendment]

[Submission date] September 16, 1992

[Procedural amendment 2]

[Name of document to be amended] Specification

[Correction target item name] Explanation of code

[Correction method] Change

[Correction details]

[Explanation of symbols] 11─Main unit, 12─Toilet lid, 13─Toilet seat, 14─
Rotating shaft, 15 - Opening/closing unit 15, 21 - Motor, 2
2, 23, 24—Deceleration means (transmission means), 25—Output gear, 26—Mode detection means, 26a—Permanent magnet, 26b
─Hall IC, 28─Spring, 29─Coil, 30
─Rotational motion detection means. 31 - Microcomputer, RY1 - First relay, RY2 - Second relay, 33 - DC power supply 33, SW1, SW2 - Relay switch.

[Procedural amendment 3]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 1

[Correction method] Change

[Correction details]

[Figure 1]

[Procedural amendment 4]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction details]

[Figure 2]

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Mitsuhiro Ohara Aishi, 2-1 Asahicho, Kariya City, Aichi Prefecture Within N Seiki Co., Ltd. (72) Creator Kiyohiko Sakurai 4-15-3 Imaike, Chikusa-ku, Nagoya, Aichi Prefecture Asai Building Sankyo Seiki Co., Ltd. Nagoya Inside the branch

Claims (1)

[Scope of utility model registration request] 1. A drive motor for driving the toilet lid and the toilet seat to open and close, a transmission means for transmitting the power from the drive motor to the toilet lid and the toilet seat at a reduced speed, and a transmission means from the output shaft of the drive motor. A rotary motion detection means is configured on any path from the toilet lid to the toilet seat and detects the presence or absence of rotational motion of the drive motor; In addition to switching between the opening operation and the closing operation, when the detection information from the rotational movement detection means indicates that there is no rotational movement, the drive motor is stopped or reversely rotated to open or close the toilet lid and the toilet seat. An automatic toilet seat/toilet lid opening/closing device characterized by comprising a control means for stopping or returning the operation to an initial state.