JPH0372126A - Controller for lifting of toilet - Google Patents

Abstract

PURPOSE:To enhance the serviceability of a toilet by mounting the toilet main body on a lifting stand and installing the lifting stand in such a manner as capable of being lifted or lowered by a driving source, and providing a control device with a position setting means, a means for detecting sitting of a person on the seat, a means for lifting or lowering the lifting stand, and a means for automatically resetting the main body in a preset position. CONSTITUTION:A lifting stand 6 for holding a toilet main body 1 in such a manner as capable of lifting it via a lifting device 3 is provided on a toilet floor surface 2 and a control portion is disposed on the wall surface. A driving source 15 is provided with an electric motor for driving the device 3 and with a control device 26, and lifting and lowering switches 43, 44, a seat switch 5a, and upper and lower limit stop switches 17a, 17b, etc., are connected to respective portions of the device 26. A user controls the switches 43, 44 of the control portion to lift or lower the stand 6 to adjust the main body 1 to desired height when using the toilet; when he leaves the seat the main body 1 is automatically recovered to its preset standard height. The serviceability of the toilet is thus enhanced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention enables the seating position of a Western-style toilet to be arbitrarily and quickly and reliably adjusted according to the user's height. This invention relates to a toilet bowl elevation control device.

[Conventional technology]

In recent years, so-called Western-style toilets, in which a toilet seat is attached to the toilet bowl, have become rapidly popular as people's lifestyles have become more Westernized, since they are easier to use than Japanese-style toilets. However, like Japanese-style toilets, Western-style toilets are fixed to the floor, so when you need to use the toilet, you can stand up on the toilet seat and relieve yourself, but when you relieve yourself while sitting on the toilet seat, The height of the toilet bowl is usually set for adults, and for this reason, the height of the toilet bowl cannot be changed for people with physical disabilities, children, or the elderly, so it may be difficult to seat them. Western-style toilets are difficult to sit properly, and people often get their clothes wet or dirty while they relieve themselves, making Western-style toilets difficult for everyone to use.

[Problems to be solved by the invention]

For this reason, for example, as seen in Japanese Patent Publication No. 56-46424, an outer cylinder is fixed in a hole opened in the floor surface, and an inner cylinder with a toilet bowl integrally provided at the upper end is inserted upward into the outer cylinder. In both walls of this inner cylinder, there are vertical long holes with racks of the same pitch formed on the negative side edges, and the horizontal shaft is inserted through these long holes, and the rack and A meshing pinion is attached, one of the horizontal shafts is extended, and driving connection is made to an electric motor, and when the electric motor is activated, an inner cylinder with a toilet bowl at the upper end is raised and lowered along the outer cylinder, and the toilet bowl is placed on the floor. In contrast, a lifting device has been proposed that is configured to allow height adjustment within a certain range. When sitting on the toilet via the toilet seat by using the elevating device, adults can use the toilet at a high height, while children can use it at a low height, which is very convenient.

However, the above-mentioned toilet bowl elevating structure has the following problems.

(1) When raising and lowering the toilet, there is no means to ensure that the toilet stops at its upper and lower stop positions. There was a risk that the toilet would be damaged and the toilet would not be able to move up and down.

(2) Also, when installing the lifting device, it is necessary to provide a mounting location for the electric motor on the underside of the floor, or to form an inner tube with a rack into the toilet itself, and to make sure that the inner tube and the electric motor are not connected to each other. The device itself is very large-scale, as it must be driven and coupled by means of converting the rotary motion of the electric motor into linear motion, and when installing a modified toilet, it is impossible to use an existing Western-style toilet bowl. However, since it is necessary to excavate the inside of the toilet and install it, there is a problem that the construction is very time-consuming and the installation cost increases significantly.

(3) Furthermore, in the above-mentioned elevating device, the electric motor is driven to raise and lower the toilet each time it is used, so after use, the toilet remains set at the height of the previous user. If a person who uses the toilet would be fine with the toilet at a standard height, it would be necessary to readjust the toilet to the user's preferred height. In other words, the toilet is most often used at a standard height position, and therefore, when the user raises or lowers the toilet, if the toilet itself is stopped at the point where it has been raised or lowered, the toilet will be installed at a standard height. Because the toilet has been moved from its original position, users who use the toilet at a standard height may feel uncomfortable and have to readjust the height, which is extremely time-consuming and troublesome. Ta.

In view of the above-mentioned problems, the present invention does not require any special large-scale remodeling work on the toilet, and can be easily installed on an existing Western-style toilet. To provide an elevation control device for a toilet bowl, which allows the toilet bowl itself to automatically return to a preset standard height position when the toilet bowl is removed.

(Means for Solving Problem III) The present invention provides screw rods that can be raised and lowered on the floor of the toilet at four corners of the outside of the body of the toilet body, and the outer periphery of the body of the toilet body is fitted and held onto these screw rods. A lifting platform with a fitting hole provided thereon is mounted with the screw rod rotatable, and this lifting platform has an electric motor with a built-in brake device at one end thereof as a drive source for raising and lowering the lifting platform. The electric motor and each of the screw rods are drive-connected via a rotation transmission means such as a chain or a toothed belt, and the lifting range of the lifting platform is provided with upper and lower limit stops for the lifting platform. A switch is installed, and the electric motor is driven and controlled by a control device that controls the advance and retreat of the screw rod to raise and lower the platform. The device is configured to automatically return to the correct height position, and its function is as follows.

[For production]

The present invention allows the toilet body to be placed at an arbitrary height above the floor of the toilet by raising and lowering the lifting platform on which the toilet bowl body is fitted and placed, using each screw lever that rotates via a rotation transmission member when an electric motor is activated. Furthermore, when the user leaves the toilet, this is detected and the toilet automatically returns to a preset standard height position based on a command from the control device. Therefore, it is convenient for the user to raise and lower the toilet to the height of his/her preference, and the toilet itself always automatically returns to the standard position after use, so the user can use the toilet at the standard height. This is particularly convenient as it saves the trouble of adjusting the height.Furthermore, when installing the lifting device, it can be installed directly using the floor of the toilet as it is, and the toilet itself does not need to be raised or lowered. It is characterized in that the installation work can be done quickly, easily, and economically because it is only necessary to fit and place the device on a lifting platform that is raised and lowered by the device.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 7.

In Fig. 1, reference numeral 1 denotes a toilet main body installed on the floor 2 of the toilet so that it can be raised and lowered via a lifting device 3 (see Fig. 2), which will be described later, and 4, for example, an operation of the lifting device 3 attached to the wall of the toilet. 5 is a toilet seat mounted on the toilet main body 1 so as to be able to be raised and lowered. Then, on the back side of the toilet seat 5, a second
As shown in the figure, a gravity-type seat switch 5a is installed between the toilet seat body 1 and the toilet seat body 1, which outputs an ON signal depending on the weight of the user when the user sits on the toilet seat 5.

Next, the structure of the elevating device 3 that holds the toilet bowl main body 1 in a movable manner will be explained with reference to FIGS. 2, 4, and 6.

In FIG. 2, reference numeral 6 denotes a rectangular lifting platform that holds the toilet bowl main body 1 so that it can be raised and lowered, and as shown in FIG. 2 and FIG. A fitting hole 7 for placing the toilet is opened horizontally, and the toilet main body 1 is placed in a second position.
As shown in the figure, since the outer peripheral surface is formed in an inclined shape from the upper part to the lower part, the horizontally long fitting hole 7 of the lifting platform 6
When the toilet body 1 is fitted from the bottom of the body 1a to the body 1a,
The central portion is received in the fitting hole 7 like a wedge action, so that it can be fitted and placed on the lifting table 6 with a predetermined space between it and the floor 2 without further lowering. Reference numeral 8 denotes a screw rod that is rotatably protruded downward from the lower surface of the four corners of the lifting table 6. As shown in FIGS. The body part 1a of the
A threaded portion 8a is screwed onto the bottom surface of the seed box 9 fixed to the bottom surface of the seed box 9, and the threaded portion 8a is screwed onto a leg stand lO having a hollow portion inside, which is fixed opposite to the protruding position of the threaded rod 8. It is formed by a sprocket 11 fixed directly above and a shaft head 14 inserted through a thrust bearing 13 into a shaft hole (2) provided in a bulge on the lower surface of the lifting table 6. 15 is a drive source for the lifting device 3 which has a built-in control device and a brake device;
As shown in the figure, it is installed vertically at one end of the lifting platform 6 (on the right side in FIG. When the chain 17 is wound around and the drive source 15 is activated, each screw rod 8 rotates in the same direction as the rotation direction of the drive source 15, and the lifting platform 6 is moved up and down by the helical action of each screw rod 8. Toilet main body 1 fitted and placed on lifting platform 6
to a predetermined height. 17a and 17b are switches for setting an upper limit stop position and a lower limit stop position of the lifting platform 6, and as shown in FIG. side) so as to be in contact with and away from the @ edge of the lifting platform 6, and the edge of the lifting platform 6 is connected to the upper and lower limit stop switches 17a and 17.
When the switches 17a and 17b come into contact with the drive fA15, the switches 17a and 17b output an on signal, and this signal is input to a control device 26 of the drive fA15, which will be described later, to stop the drive source 15. 18 is a drain hole of the toilet main body 1, 19 is a drain pipe connected to the drain hole 18, and this drain pipe 19 is connected to an O-ring 20 as shown in FIG.
into the drain pipe 21 buried in the floor through the airtight and
It is inserted so that it can move up and down. Also, 22 is a low tank for flushing water installed on the toilet main body 1, 23 is its water supply cylinder,
24 is watertightly connected to the water supply cylinder 23 via an O-ring 25;
In addition, it is a water supply pipe that is inserted through the pipe so that it can move up and down.

Next, the structure of the drive source 15 attached to the lifting platform 6 and driving the lifting device 3 will be explained with reference to FIG.

The drive source 15 can be broadly classified into the control device 2 from above in FIG.
6, a brake device 27, an electric motor (for DCC brushless morph) 28, and a deceleration rotation transmission device 29 consisting of a plurality of planetary gear groups, and each of the above-mentioned members are arranged in tandem in a case 30.

As shown in FIG. 7, the brake device 27 includes an electromagnetic magnet 33 in which an electromagnetic coil 32 is wound around an iron core 31, and an electromagnetic magnet 33 on an attraction surface 34 of the iron core 31 of the electromagnetic magnet 33. A guide pin 35 horizontally protruding toward the 28 side, a plunger 36 made of a permanent magnet that is fixedly supported by the guide pin 35 and moves in the axial direction but does not rotate in the circumferential direction, and an electric motor 4112B. The brake wheel 3 is fixed to the rotor shaft 28a of the rotor shaft 28a facing the plunger 36.
7 and a highly abrasion-resistant annular brake lining 38 spread over the brake wheel 37. The plunger 36 is connected to the iron core 3 by excitation of the electromagnetic magnet 33.
Brake device that is attracted to the attraction surface 34 of 1! ! 27 is released, or conversely, it is attracted to the brake wheel 37 side to apply braking to the electric motor [2B].

Next is the electric! As shown in FIG. 7, the fi 28 is housed between the brake device 27 and the deceleration rotation transmission device 29, and one end of the rotor shaft 28a is connected to the brake device 27, and the other end is connected to the deceleration rotation transmission device 29. and are each drivably coupled to the drive shaft 39 thereof. As shown in FIG.
The other end of the case 30 (upper side in FIG. 7) from which the drive shaft 39 does not protrude is covered with a cover 42.

Next, the configuration of the control device 26 of the drive source 15 will be explained with reference to FIGS. 9 and 11. The control device 26 controls the drive of the electric motor 28 to set the lifting platform 6 at an arbitrary height within its lifting range.
Its configuration can be roughly divided into two types of constant voltage power supplies VCC+
v. a power supply circuit 50 that outputs
51, a microcomputer reset circuit 52 connected to the input end of the microcomputer 51, a switch circuit 53 equipped with various operation switches, a current cutoff circuit 54 connected to the output end of the microcomputer 51, and a drive circuit 55. , I! by the short circuit 56 and the electromagnetic brake circuit 57. One constant voltage il output from the power supply circuit 50
The t source VCC is supplied to the electric motor 28 via the current cutoff circuit 54→drive circuit 55, and the other constant voltage power source V. teeth,
As a power source for the operation of the circuit and the microcomputer 51 (
(Funded.

Next, the configuration of each circuit will be explained.

First, to explain the circuit connected to the input end side of the microcomputer 51, the microcomputer reset circuit 52 is inserted and connected between the constant voltage power supply veo side of the power supply circuit 50 and the input @A1 of the microcomputer 51. 51 initial settings.

Next, the switch circuit 53 includes rise and fall switches 43 and 44 for instructing the rise and fall of the platform 6, a seat switch 5a that is turned on when a person is seated on the toilet seat 5, and an upper and lower limit switch that sets the range of elevation of the platform 6. The lower limit stop switches 17a, 17b are configured to include lower limit stop switches 43, 44 .
5a, 17a.

17b has one end connected to the constant voltage power supply V of the power supply circuit 50.
Dll, the other end is connected to the required input end AZ' of the microcomputer 51 by individually inserting invert buffers N, ~Ns.
-A! are individually connected to. Further, the switch circuit 53 is provided with a changeover switch 62 that can set the height position of the toilet seat body 1 in advance, and the changeover stages are, for example, adult male al + dignified female at, child a,
It is now possible to switch between. and,
This changeover switch 62 sets the switch lever 62a to the standard piezoelectric 4VIILl, and each switching stage a1 to a is an invert buffer N? ~N, input terminal A of the microcomputer 51 via
, ~A, respectively. Furthermore, microcomputer 51
The power supply unit V□ is supplied with a constant voltage power supply V from the power supply circuit 50. is entered.

Next, the configuration of the circuit connected to the output end side of the microcomputer 51 will be explained.

The current cutoff circuit 54 includes a common emitter transistor Q,
and a transistor Q2 connected to one output terminal VCC of the power supply circuit 50, the transistor Q,
The base of is connected to the output terminal B of the microcomputer 51 via the resistor R7,
The collector of the transistor Q is connected to the base of the transistor Qt via a resistor R2, and the collector of the transistor Q is connected to a known transistor inverter circuit of, for example, a three-phase 120" conduction type and a three-phase bridge type rectification circuit. The input terminal of a drive circuit 55 provided in combination with the circuit is connected via a diode D1.

The output terminal BI of the microcomputer 51 is converted to the "H" level when the motor 28 is operating, and to the "Lo" level when braking, thereby turning the transistor Q on and off.

The short circuit 56 includes a transistor Q whose emitter is grounded, and its base is connected to the output terminal B2 of the microcomputer 51 via a resistor R1, and its collector is connected to the input terminal of the drive circuit 55 via a resistor R4. The diode D prevents the induced voltage generated when the electric motor 28 rotates at a constant speed or higher from flowing back into the current cutoff circuit 54, and the resistor R1 consumes (discharges) the induced voltage to the t-liquid cutoff circuit 54. from the induced voltage. Therefore, the output terminal B2 of the microcomputer 51 is at the "L" level when the motor 28 is operating, and is at the "H°°" level when the motor 28 is stopped (during braking), and the transistor Q
Turn 3 on and off. Also, the output 5 of the microcomputer 51
3B, , B are connected to the drive circuit 55 and are electrically powered [2
It gives commands to run, stop, forward and reverse rotation to 8.
Run and stop commands are output from the output end B3, and signals for forward rotation and reverse rotation commands are output from the output end BI.

The electromagnetic brake circuit 57 includes the first. 2nd hotokabura PC
, PC, and one phototriac PT,
The first photocabra PC+ uses a microcomputer 5 as a collector.
A phototransistor T whose emitter is connected to the output terminal BI of the phototriac PT 1 and connected to the anode side of the photodiode D2 of the phototriac PT, and a photodiode D3 whose anode is connected to the AC power supply via a resistor R3 and whose cathode is connected directly to the AC power supply. Similarly to the first photocoupler Pct, the second photocoupler PCz also has its collector connected to the output terminal B of the microcomputer 51, and its collector connected to the diode D.
The phototransistor T8 is connected to the anode of the phototransistor T2, and a photodiode D is connected to the photodiode D3 in antiparallel to the alternating current 1111g. The first V:J pole is connected to the T1 magnetic magnet 33, and the second anode is connected to the photodiode D whose cathode side is grounded. Second photocoupler PC1PCz
A triac Th connected to an AC power source while being connected to the cathodes and anodes of the photodiodes D, D,
The electromagnetic brake circuit 57 is constituted by the electromagnetic brake circuit 57, and the electromagnetic magnet 33 itself has a photodiode-FD, which forms one side of a photocoupler PC,, pct, for switching the flow of current (switching the polarity) in its current-carrying circuit. D and a triac Th of a phototriac PT, which controls on/off the energization of the electromagnetic magnet 33, that is, serves as a switching element, are inserted and connected to an AC power source.

Note that the output terminals B, B, of the microcomputer 51 are set to 'L''L when no energization command is given to the 1ilt magnetic brake circuit 57.
On the other hand, when the energization command is output, it becomes "H" level. When the output terminal BI of the microcomputer 5 is at the "H" level (at this time, the output terminal BI is at the "L" level), the 'Q 6ft magnet 33 receives a current in the direction of attracting the plunger 36 (see FIG. arrow direction)
is energized, and the output terminal BI is at H” level (at this time, the output @
Conversely, when BS is at "L" level), the electromagnetic magnet 33 generates a current (11th
(X direction in the figure) is energized.

Next, as shown in FIG.
The pulse signals input from the invert pamphlet 7N to the input terminal A of the microcomputer 51 are counted, and the count value is a set value indicating the standard height position of the toilet bowl body 1 stored in advance in the mask ROM 58. When they match, the drive circuit 55 and the electromagnetic brake circuit 57 are commanded to stop the electric motor 28 and the electromagnetic magnet 33 is energized (braking).
It is equipped with a central processing unit CPU that outputs commands, an input interface 60 connected to a circuit that generates a control output such as a switch circuit 53, and an output interface 61 connected to a current cutoff circuit 54, a drive circuit 55, etc. The following program is stored in the mask ROM 58.

(1) A function that measures the current position of the toilet bowl body 1 by counting pulse signals output from the Hall IC 59, (2) After raising the toilet bowl body 1 to the upper limit stop position when the power is turned on (when the power is restored), Fixed position (switching switch 2
If the changeover switch 62 is set to the position set in, for example, stage a for an adult male, it represents the standard height position of the toilet main body l suitable for an adult male to sit on. (3) When the user leaves the toilet bowl l, the seat switch 5a detects this and indicates the distance the toilet bowl l has moved from the standard height position. (4) Drive circuit 55 by operating each switch.
Ia commands the motor 28 to run, stop, rotate forward, and reverse.
(5) A function that energizes the electromagnetic magnet 33 for a certain period of time when the electric motor 28 is started or stopped. (6) The rotational speed of the electric motor 28 is measured by counting the pulses output from the Hall IC 59, and a predetermined value is determined. If the speed is exceeded, electric 4! ! 2B; (7) function to memorize the standard height positions of the toilet bowl body 1, such as adult male, adult female, and child settings; (8) seat switch 5a is on except when the power is turned on; A function is programmed in which the electric motor 28 and the electromagnetic magnet 33 are not commanded to start even if the up or down switches 43 and 44 are turned on, unless the up or down switches 43 and 44 are turned on.

Next, the operation will be explained.

After installing the toilet main body 1 on the elevating device 3 so that it can be raised and lowered, the changeover switch 62 is turned on, for example, by an adult male a.

When the power supply circuit 50 of the control device 26 is energized by switching to the step (see S in FIG. 10), the output signal from the microcomputer reset circuit 52 is input to the microcomputer 51, and the microcomputer 51 is reset. Initialize. When the energization is performed, the output terminal B5 of the microcomputer 5I changes from the "L" level to the "II" level, an output signal for releasing the brake of the brake device 27 is output, and the first output terminal provided in the electromagnetic brake circuit 57 is output. Turn on the phototransistor T1 of the photocoupler PC.Then, the photocoupler PC+
Since the photodiode D is constantly supplied with electricity from the AC power supply, it emits light, so the first photocoupler PC3 is turned on, causing the photodiode D2 of the phototriump PT to emit light and making the triac Th conductive. Turn on PT. As a result, as shown in FIG. 11, a half-wave current is applied to the electromagnetic magnet 33 from the AC power source in the direction of the X arrow, that is, the magnetic pole of the surface of the plunger 36 made of a permanent magnet located on the electromagnetic magnet 33 side is the S pole. In this case, the attraction surface 34 of the electromagnetic magnet 33 is N
By passing a current through the coil 32 of the electromagnet 33 in the direction of the pole, the plunger 36 moves away from the brake wheel 37 in FIG.
The brake device 27 is opened by being attracted to the attraction surface 34 of No. 3.

Further, from the output terminals Bz and Bn of the microcomputer 51, an operation command for the electric motor 28 and a command for rotating the electric motor 28 in the normal rotation direction are outputted as output signals to the drive circuit 55, and the drive circuit 55 is operated. At this time, the output #AB of the microcomputer 51
+ is at “H” level, the current cutoff circuit 5
The transistor QQ2 of No. 4 is turned on, and the power supply circuit 5
The constant voltage power supply VCC output from 0 is connected to the current cutoff circuit 5
4 → Power is applied to the electric motor 8!28 through the drive circuit 55,
The electric motor 28 is started. That is, the drive shaft 3 of the drive StS
Drive 9. As a result, sprocket 1 of the drive StS
6 and the sprocket 11 of each screw 8.
As shown in the figure, each of the screw rods 8 is rotated in a direction to move the lifting platform 6 upward via a chain 17 wound around it in a rectangular shape.
Due to the screw action of the threaded portion screwed into the footrest 10, the lifting platform 6 gradually moves upward from the position shown in FIG. 2, for example, and raises the toilet main body l (see 32 in FIG. 10). .

At this time, the drain pipe 19 and the drain pipe 21 and the water supply pipe 23 and the water supply pipe 24 are both connected to the O-ring 20.25 in this example.
Since the toilet main body 1 rises, the drain pipe 19 and the water supply pipe 23 rise along the drain pipe 21 and the water supply pipe 24 while maintaining a close state. Then, the edge of the lifting platform 6 is connected to the upper limit stop switch 17.
When you press a to turn it on, the on signal is sent to the microcomputer 5.
It is input to the input terminal of 1. A stop signal is output from the output end B of the microcomputer 51 to the drive circuit 55, stopping its operation and stopping the electric motor [2B]. Moreover, at the same time as the electric motor 28 is stopped, the output terminal B6 of the microcomputer 51 is set to "L" and "H".
"Reher" outputs a braking output signal to the electromagnetic brake circuit 57, turns on the lower phototransistor 2 and turns on the second photocoupler Pc!, thereby turning on the photodiode D! of the phototriac PT. Light is emitted, the triac Th is made conductive in the same manner as described above, the phototriac PT is turned on, and a current is passed through the electromagnetic magnet 33 from the AC power source in the direction of the Y arrow as shown in FIG. 11, that is,
A half-wave current is applied to the electromagnetic magnet 33 in a direction in which a magnetic pole that repulses the plunger 36 is generated. Therefore, the polarity of the magnetic pole of the attracting surface 34 of the electromagnet 33 is reversed from the north pole to the south pole. On the other hand, the electromagnetic magnet 3 of the plunger 36
Since the surface located on the 3 side remains the S pole, it rapidly rebounds as the polarity of the electromagnetic magnet 33 is switched from N to S, is pushed toward the brake wheel 37 side, and comes into contact with the brake lining 38. and brakes the electric motor 812B. That is, the driving source 15 is stopped and the lifting platform 6 is temporarily stopped at the upper limit stop position (see Ss in FIG. 10).
The "H" level signal outputted from the output terminal BS of the microcomputer 51 to the magnet drive circuit 55 is a half-wave energization of the electromagnetic magnet 33 with AC power for a certain period of time (approximately 2 seconds).
After that, the level immediately changes to "°L', and the photocoupler PC,, PC, is returned to the OFF state, and the electromagnetic magnet 33 is controlled so that no more current than necessary flows. This is because the plunger 36 Since it is a permanent magnet, it is reliably attracted to the electromagnetic magnet 33 and the brake device 2
This is because there is no need to energize the electromagnetic magnet 33 if it is confirmed that the brake device 27 is operated reliably by being attracted to the brake wheel side when it is released.

When the lifting platform 6 is reliably stopped at the E limit stop position as described above, the output terminal B of the microcomputer 51 changes from the "L" level to the "H" level again according to the program sequence stored in the mask ROM 58 of the microcomputer 51. level, and outputs an output signal to the electromagnetic brake circuit 57 to release the braking of the brake device 27, and as described above, the electromagnetic magnet 33
Apply electricity to the suction surface 34 to attract the plunger 36 and install the brake! Open 27. Also, microcomputer 51
Output end B3. From Bs, electric 1 is connected to the drive circuit 55.
28 and an output signal for rotating it in the reverse direction are output, starting the electric motor 82B (54 in Fig. 10).
reference). As a result, the drive I@15 rotates the drive shaft 39 in the opposite direction, and gradually lowers the elevator platform 6 from its upper limit stop position while rotating each screw 8 in the opposite direction to when the elevator platform 6 is raised. let At this time, a pulse signal generated from a Hall IC 59 for detecting the position of the rotor built into the motor 28 is input to the input terminal A of the microcomputer 51 via the invert buffer N- and counted, and the count value and the The central processing unit CPU of the microcomputer 51 compares the set value of the standard height position of the toilet bowl main body 1 stored in the caulking mask chrome 58, and when these values match, the central processing unit CPU outputs the output of the microcomputer 51. #JB.

B, a stop command for the electric motor 28 and a brake device 27 are issued.
The braking command and signals are sent to the drive circuits 55 and 1, respectively.
is simultaneously output to the magnetic brake circuit 57, and the electric motor 812B
At the same time, the power supply to the toilet is cut off, and at the same time, braking is applied to hold the toilet main body 1 at a standard height position for a bottoming man set in advance by a changeover switch 62. The movement of the toilet bowl body l to the standard height position, which is performed by energizing the power supply circuit 50 (including energizing after the power is restored), is automatically performed by the control program stored in the microcomputer 51 (10th (See figure S).

Next, a case where the user adjusts the height position of the toilet main body l will be explained. By energizing the control device 26, the height position of the toilet main body 1, which has been set in advance with the changeover switch 62, is automatically set to the standard position, as described above, so that the user can sit on the toilet seat 5. In this case, as shown in FIG. 8, if the user is satisfied with the height position, there is no need to adjust the height.

However, when sitting on the toilet seat 5, if it is too high or too low, the height position of the toilet main body 1 should be adjusted. In this case, since the toilet main body 1 is set at a standard height position, the toilet bowl main body 1 is adjusted from that position to a height position desired by the user.

Finally, when you sit on the toilet seat 5 (see S in Figure 10),
The seat switch 5a is turned on by the weight of the user, and the on signal is input to the microcomputer 51. Next, when you sit on the toilet seat 5, the toilet main body 1 will move as shown in FIG.
If the user is at a high position, press the lowering switch 44 of the operating part 4, and if the user is at a lower position, press the raising switch 43 (see S in Figure 10)0 For example, as shown in Figure 2, If the position 1 is high for the user even if it is the standard height position, when the lowering switch 44 is pressed, the ON signal of the lowering switch 44 is inputted to the microcomputer 51, which causes the output terminal B2 * B4 + BS of the microcomputer 51 to be input to the microcomputer 51.
The brakes on the electric motors 8 and 28 are released by the signals outputted from each of them, and the electric motor 28 rotates in the direction of lowering the lifting platform 6, driving the drive source 15, and causing the chain 7 to rotate each screw rod 8. to lower the toilet bowl body 1 (S in Figure 10).
-Reference).

The user selects the lowering switch 4 when he or she feels that the sitting position is optimal.
4 (see S in FIG. 10). Therefore, signals instructing the output terminals B, , B of the microcomputer 51 to stop the electric WA2B and to brake the brake device 27 are transmitted to the drive circuit 55. It is output to the electromagnetic brake circuit 57,
At the same time as the operation of the electric motor 28 is stopped, the brake device 27 applies braking to stop the lowering of the toilet main body 1 and hold it in that position. In this way, the toilet main body L is adjusted from the standard height position to the height position desired by the user, for example, a position where the user can sit comfortably as shown in Figure 8 (see S in Figure 10). ). At this time, the microcomputer 51
28, the pulse signals output from the Hall IC 59 are counted, and the counted value is stored as the current value of the toilet main body 1. In addition, the microcomputer 51 controls the seating switch 5.
While the ON signal from a is being input, flight 2 = main body 1
Since the toilet seat 5 is programmed to be held at its stop position, the height of the toilet seat 5 will not change while you are using it.

When the user leaves the toilet seat 5 after relieving himself (S in Figure 10,
), the seat switch 5a is turned off, the on signal is no longer input to the microcomputer 51, and the microcomputer 51 confirms that the user has moved away from the toilet seat 5. Then, microcomputer 51
, a program is set to return the toilet main body 1 to the standard height position when the seat switch 5a is turned off.
A signal is output to move the to the standard height position.

In this case, the microcomputer 51 determines whether to raise or lower the toilet body 1 by comparing the already counted current value and the set value at the standard height position by moving the toilet body 1, and then moves the electric 8128 to the toilet. Rotate the main body 1 in the direction to return it to the preset standard height position. When the count value of the pulse signal output from the electric motor 4a28 and the count value of the stored current value match, the central processing unit CPU of the microcomputer 51 sends a signal to the microcomputer 5.
1 output end B3. A signal to stop the electric motor 28 and apply braking to the brake device 27 is output via B&, and the electric motor 1a2
8 is stopped, the toilet main body 1 is returned to the standard height position for the bottoming man set by the changeover switch 62, and is kept on standby at that position.

Also, if the height of the toilet bowl body 1 is higher or lower than the standard height position as shown in Fig. 2, change the changeover switch 62 to the level suitable for you in advance and adjust the height of the toilet bowl body 1. After changing the height position to the standard height position, sit down, and if the height does not match, operate the rise or fall switch 43, 44 in the same way as above to set it to the desired height. You can set it in this position.

Furthermore, when adjusting the height position of the toilet main body 1, if the lifting platform 6 attempts to exceed the upper and lower limit stop positions,
Since the upper limit or lower limit stop switch 17a17b is configured to operate to prevent further movement of the lifting platform 6, the screw rod 8 may come off from the footrest 10, or the toilet bowl body 1 may collide with the floor surface 2. Such accidents can be definitely prevented.

Next, the acceleration suppression control during the descent of the toilet bowl body 1 will be explained.

When the toilet main body 1 descends, an acceleration phenomenon may occur depending on its weight. In the present invention, in addition to counting pulse signals output from the Hall IC 59 of the electric motor 28 by the microcomputer 51, the microcomputer 51 itself detects the rotational speed of the electric motor 28, and the rotational speed exceeds a preset value. In this case, the output terminal B of the microcomputer 51
1 changes from the "H" level to the "L" level, and a signal to stop the current supply is output to the current cutoff circuit 54. Therefore, the transistor Q of the circuit 54 is turned off, and accordingly the transistor Q2 is also turned off to stop the operation of the drive circuit 55, and the constant voltage power supply VCC output from the power supply circuit 50 is turned off to the electric motor 1a28. Simultaneously with the current cutoff operation by the current cutoff circuit 54, the output @Bt of the microcomputer 51 changes from the "L" level to the "H" level, and a signal for operating the short circuit 56 is output, and the transistor Q of the short circuit 56, Turn on. By stopping the power supply to the electric motor 28, the rotor of the electric motor 28 idles, and this idle rotation phenomenon generates an induced voltage in the coil of the electric motor 8128. This induced voltage flows backward through the drive circuit 55 and is discharged from the short circuit 56 through the resistor R4 without passing through the current cutoff circuit 54 through the diode D1, thereby applying braking to the idling rotor. That is, the electric motor 28 is braked. In this case, the signal output from the output terminal B2 of the microcomputer 51 is cut off, and VT control is applied to apply sudden braking to the electric motor 1112B, thereby preventing a sudden speed change from occurring and adversely affecting the descent of the toilet bowl body 1. enables smooth deceleration braking. Then, when the rotational speed of the electric motor 28 is reduced to a specified speed, the microcomputer 5I
This is confirmed by the pulse signal from 9, and the output terminals B, , , B are set to 'H' level and -'L' level to stop the output of the signal for operating the current cutoff circuit 54 and the short circuit 56. As a result, the electric motor 25 is reenergized and resumes operation.

[Effects of the Invention] As explained below, the present invention includes a plurality of leg stands arranged on the toilet floor around the toilet main body, screw rods being screwed onto these leg stands so that they can advance and retreat in the vertical direction. A lifting platform into which the toilet body is fitted is mounted on each screw rod so that each screw rod can rotate individually, and a drive source attached to one end of the lifting table and each of the screw rods are connected to each other. Drive is connected by a rotation transmission means such as a chain, and the drive source is drive-controlled by a control device to drive and rotate each screw rod, and the toilet main body fitted and placed on the lifting platform can be adjusted to an arbitrary height by moving the screw rod forward and backward. Since the structure is configured to adjust the position of the toilet, when raising and lowering the toilet, the structure is completely different from that of the conventional toilet, in which a device for raising and lowering the toilet is installed below the floor of the toilet to raise and lower the toilet. Differently, as described above, the present invention is configured such that the toilet lifting device is provided on the floor of the toilet where the toilet main body is installed, so the structure of the lifting device can be simplified and the installation work can be done quickly. This can be done easily and economically.

Furthermore, in the present invention, the control device that controls the drive source is configured to keep the toilet body at a preset standard height position when the toilet body is not in use. The former method is convenient because it is only necessary to adjust the height of the toilet body when you are dissatisfied with the height position when using the toilet, regardless of the position in which it is used.

Furthermore, when using the toilet for people with physical disabilities, children, the elderly, etc., after operating the changeover switch in advance to set their own seating stage, the height of the toilet itself can be adjusted as desired by operating the switch on the control panel. Since it can be adjusted, the discomfort of using a Western-style toilet can be alleviated, which has a significant effect on its popularization and PR.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing how the elevating device of the present invention is used, Fig. 2 is a partially cutaway sectional view showing the main parts of the elevating device, Fig. 3 is a plan view of the toilet bowl, and Fig. 4 shows the main parts. A cross-sectional plan view, Fig. 5 is a vertical cross-sectional view showing how the screw rod is installed, Fig. 6 is an explanatory view showing how the water supply pipe is connected, Fig. 7 is a longitudinal cross-sectional view of the drive source, and Fig. 8 is a vertical cross-sectional view showing how the toilet is lowered. FIG. 9 is a block diagram showing one embodiment of a control device for controlling the drive source, and FIG.
The figure is a flowchart showing the raising and lowering operation of the toilet bowl, and FIG. 11 is an electric circuit diagram of the control device. l・Toilet body, 3. Elevating device, 8. Screw rod, 15. Drive source, 26. Control device

Claims (1)

[Claims] A plurality of screw rods that advance and retreat in the vertical direction are arranged on the floor of the toilet, and the toilet body is fitted and placed on the screw rods, and a lifting platform equipped with a drive source that drives and rotates the screw rods can be raised and lowered. Further, the drive source includes a height position setting means that can adjust the position of the toilet main body to a plurality of preset heights before sitting on the toilet main body; means for detecting when a person is seated on the toilet seat; means for raising and lowering the platform by operating a switch when the person is seated on the toilet seat; and means for detecting when the user leaves the toilet seat and moving the toilet body to a preset height position. 1. A toilet elevation control device comprising: a control device having a holding means.