JPH05146376A - Battery driven seat paper feeder - Google Patents

Abstract

PURPOSE:To achieve an extension of the life of a battery and a higher power saving effect by providing a control section with a timer means which ignores a detection voltage by a voltage detection means for a fixed time after the movement of a drive mechanism section to enable judging of a drive voltage accurately. CONSTITUTION:A driving program of a microcomputer 104 is so prepared previously that no voltage is given to a power source voltage detection circuit 117 only for a fixed time (t) (e.g. 200ms) from the staring of a DC motor for delivery or the like by a timer means. Therefore, as the power source voltage detection circuit 117 generates no detection output even when an instantaneous voltage drop occurs within the fixed time (t), a display circuit for displaying the expiration of a battery fails to work. There is no need for changing the battery. In other words, the display circuit 116 informs the user of the need for changing the battery only when the drive voltage of a dry cell drops actually thereby enabling the extension of the life of the dry cell.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery-operated sheet paper supply device capable of accurately determining whether or not a battery has a sufficient driving voltage and improving the battery life.

[0002]

2. Description of the Related Art The applicant of the present application has previously proposed in Japanese Patent Application No. 3-92133 that a sheet paper roll from a sheet paper roll accommodated in a roll accommodating section in a functional section casing is rolled onto a toilet seat body through a delivery passage. Paper feeding mechanism part,
A sheet paper cutting mechanism unit that cuts the rear end of the sheet paper that has been fed out on the toilet seat body and clamps the rear end, and a control unit that controls the operations of the sheet paper feeding mechanism unit and the sheet paper cutting mechanism unit. , A battery-powered sheet paper supply device that can be driven by a battery.

Further, with such a structure, a sheet paper feeder is installed in an existing building or the like where commercial power supply wiring is difficult or undesirable, for example, even in a unit bus, while ensuring sufficient safety. can do.

By the way, since the above-mentioned sheet paper supply device is driven by a battery, the number of times of use increases and the drive voltage gradually decreases. Eventually, the drive motors of the sheet paper feeding mechanism portion and the sheet paper cutting mechanism portion can be driven. Disappear.

Therefore, the sheet paper supply device is provided with a voltage detecting means, which constantly detects the voltage of the driving power source,
When the drive voltage falls below the set voltage, the administrator is informed that the battery needs to be replaced, or the drive program is reset in order to avoid troubles due to low voltage operation of the control device. ing.

[0006]

However, the above-mentioned battery-driven sheet paper supply device still has the following problems to be solved.

That is, as shown in FIG. 17, when a drive motor or the like is started, a large voltage drop D of a drive voltage is momentarily generated. However, the conventional voltage detecting means also detects the voltage drop D and detects the battery. In order to perform a dead notice or a battery dead judgment, the battery is actually replaced even though the battery still has a sufficient driving voltage. Therefore, the battery is wasted and there is a problem in terms of power saving.

The present invention is capable of solving the above-mentioned problems, that is, a battery-driven sheet paper supply device capable of accurately determining the driving voltage of a battery, extending the battery life, and significantly improving the power saving effect. The purpose is to provide.

[0009]

According to the present invention, there is provided a seat including a drive mechanism section electrically driven by a battery voltage, a control section for controlling the drive mechanism section, and a voltage detecting means for detecting the battery voltage. In the paper feeding apparatus, the control unit is a battery-driven sheet paper feeding apparatus including timer means for ignoring the voltage detected by the voltage detecting means for a certain period of time after the drive mechanism is activated.

The present invention is also directed to a sheet paper feeding device including a drive mechanism section electrically driven by a battery voltage, a control section for controlling the drive mechanism section, and a voltage detecting means for detecting the battery voltage. The voltage detection means relates to a battery-driven sheet paper supply device connected to a battery voltage via a voltage backup circuit.

The present invention further provides a sheet paper supply device comprising a drive mechanism section electrically driven by a battery voltage, a control section for controlling the drive mechanism section, and a voltage detecting means for detecting the battery voltage. The control unit is related to a battery-operated sheet paper supply device, in which the drive mechanism unit is not driven after the voltage detection unit detects a predetermined voltage.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the overall structure of a battery-driven sheet paper supply device A according to the present invention will be described.

As shown in FIGS. 1 and 2, the sheet paper feeding device A is fixedly mounted on the toilet seat main body 11 which is openably and closably mounted on the flush toilet bowl 10 and on the rear portion of the flush toilet bowl 10. The rear portion of the toilet seat body 11 is formed by a functional pivot 13 and a functional portion 14 pivotally supported by a simple pivot 13a in a vertically rotatable manner. In the figure, 8 is a sheet paper feeding path,
11e indicates an opening.

Also, as shown in FIGS.
Is the functional unit casing 15 attached to the rear of the flush toilet 10.
And a drive mechanism section (a delivery mechanism section C, a cutting mechanism section D), a roll storage section E, a control section F, an operation section G, and a dry battery case 15a arranged in the casing 15.

Next, the structure of the functional section casing 15 will be described. As shown in FIGS. 3 to 4, the functional section casing 15 has a lower casing 16 in which a feeding mechanism section C, a cutting mechanism section D and the like are incorporated. And an upper casing 17 which is fitted and connected to the upper edge of the lower casing 16 and which forms a roll housing portion E therein.

Also, as shown in FIG. 2, the lower casing
Stand bearing boxes 30 and 31 on both left and right sides of 16, respectively,
In the right bearing box 31, the feeding roller of the feeding mechanism section C is
33, a feeding DC motor M1 that is a drive source of the movable plate 50 of the cutting mechanism section D, and a cutting DC motor M2 are provided.

As shown in FIG. 3 and FIG. 5, the feeding mechanism section C includes the left and right bearing boxes 30, 31 of the lower casing 16.
Between the upper and rear parts of the feeding shaft connected to the feeding DC motor M1
The feeding roller 33 is fixed to the feeding shaft 32, and the feeding roller 32 is fixed to the feeding shaft 32. In cooperation with the pressing roller 34 disposed above the feeding roller 33, the sheet paper P is pressed and pinched, and the roll storage portion E is removed. The sheet paper P is drawn out onto the toilet seat body 11.

As shown in FIGS. 3 and 6, the cutting mechanism D includes a disc cam 44 fixed to a power transmission shaft 43 connected to a DC motor M2 for cutting etc. disposed in the right bearing box 31.
A movable plate 50 that is swingably arranged around a pivot 49 and has its outer peripheral surface engaged with the outer peripheral surface of the disc cam 44, and is disposed above the movable plate 50 and is swingable about a pivot 52. And a swing plate 51 that is pivotally supported on. A pressing piece 56 is provided on the rear portion of the upper surface of the movable plate 50, and can cooperate with a pressing piece 57 forming the front portion of the swing plate 51 to clamp the sheet paper P. Further, a cutting portion 58 integral with the pressing piece 57 is formed on the rear portion of the swing plate 51. BP is a sewage intrusion prevention barrier attached to the upper end front part of the movable plate 50.

As shown in FIGS. 3 and 5 and 6, the roll storage portion E has roll holders 60 and 61 respectively arranged in the left and right bearing boxes 30 and 31, and the sheet paper P is attached to the paper tube R1.
The sheet paper roll R formed by multiple winding is supported exchangeably.

The control unit F, as shown in FIGS.
By the power supply circuit 102, various circuits connected to the input and output terminals of the microcomputer 104, and the electric motor drive circuit 107 having the first and second motor circuits 105 and 106 having auxiliary contacts of the relays provided in these circuits. The paper position detection sensor 70 that is configured and generates an output by detecting the position detection through hole b provided in the sheet paper P, the feeding switch 71 provided in the operation unit G described later, the seating detection sensor 72, and the like. , An input interface connected to the control output generating means, an output interface connected to the feeding mechanism unit C, the cutting mechanism unit D, etc., a memory for storing a feeding / clamping / cutting program for the sheet paper P, and a timer. Has been done.

As shown in FIG. 2, the operating portion G is provided above the right front portion of the lower casing 16 and is used for feeding switch 71, a power lamp including a light emitting diode, paper jam, paper replenishment and the like. It is configured by a display unit g1 such as a paper trouble lamp having an alarm function when an abnormality occurs.

Below the operating section G, as shown in FIG.
Dry battery case 15a that can store 4 AA batteries 101
Is formed, and electric power for driving each of the mechanical units C and D and the control unit F is supplied from the dry battery 101 in the case 15a. 15b is a cover that can be opened and closed.

At the front right position of the functional casing 15,
As shown in FIG. 2, a paper position detecting sensor 70 is provided, and the position detecting sensor 70 is composed of a phototransistor and a photodiode, and the sheet paper roll R has a predetermined length of the sheet paper P. When the sheet is detected on the toilet seat main body 11, the paper position detecting sensor 70 detects the position detecting through hole b formed in the sheet paper P and stops the operation of the supplying mechanism C.
It is possible to supply the sheet paper P on the toilet seat body 11 according to the character.

As shown in FIG. 2, the seating detection sensor 72 as a means for detecting seating has a front portion of the functional portion casing 15 at both ends of the rear portion of the toilet seat body 11 via a functional pivot shaft 13 and a simple pivot shaft 13a. It is attached to both sides of the pivot 14a so that it can be attached and removed freely and can be rotatably erected, and the presence or absence of seating can be detected by the load applied to the toilet seat body 11. It is connected.

The functional pivot 13 is, as shown in FIGS.
It is inserted into the pivotal support 14a through a long hole 75 formed in the inner wall of the pivotal support 14a in the up-down direction, and is rotated by a movable bearing 77 that is vertically movable in a lift guide casing 76. It is freely pivoted. The movable bearing 77 is always urged upward by the coil spring 78, but its upper limit position is regulated by the regulation plate 79. Therefore, normally, the movable bearing 77 is normally in the upper position (not seated on the toilet seat body 11) as shown in FIG. Status)
Thus, the functional pivot 13 and the toilet seat body 11 also assume the upper position shown in FIG. Further, the functional pivot 13 is provided with a lever pressing piece 80 having a substantially quarter arc shape protruding from the insertion tip thereof, and a sensor starting lever 81 is arranged below the lever pressing piece 80. Reference numeral 81 designates a base end portion 81a so that the base end portion 81a can be moved up and down, and a coil spring 82 urges the base end portion 81a upward to keep the upper surface of the sensor starting lever 81 in contact with the lever pressing piece 80. Reference numeral 83 is a lever lifting guide casing, and 84 is a shield plate protruding from the tip of the sensor starting lever 81.The light emitting element 85a and the light receiving element 85b of the infrared sensor 85 arranged in the pivotal support portion 14a of the functional portion casing 15 are provided. It is installed between and.

Further, a toilet seat body engaging portion 86 having a flat cross-section is formed on the side of the functional pivot 13 opposite to the toilet seat body 11, and the toilet seat body engaging portion 86 is fitted into the pivot shaft engaging hole 87 so as not to rotate.
When the seat 11 is seated (seated), its arcuate portion abuts on the sensor starting lever 81, so that the functional pivot 13, the excessive bearing 77, the lever pressing piece 80 and the sensor are resisted against the biasing force of the coil spring 82. The starting lever 81 moves down (up),
The shield plate 84 connects and disconnects the light emitting element 85a and the light receiving element 85b to turn on and off the infrared sensor 85.
11 postures can be detected. With these outputs, when the toilet seat body 11 is in a state in which the sheet cannot be fed out, the control unit F suppresses the operation of the feeding mechanism unit C even if the feeding switch 71 is pressed, and the seat in the functional unit casing 15 is suppressed. It is possible to prevent entanglement and jamming of the paper P.

The movable plate position detection sensors 93, 93a are
As shown in 13,14,15, it is a photo interrupter type consisting of a light emitting element, a light receiving element and a pair of detection plates 96, 96a, and as shown in FIGS. 5, 6 and 13, 14, 15, a power transmission shaft. Sensor mounting box on the bottom of the casing near the center of 43
It is housed inside.

As shown in FIGS. 13, 14 and 15, the detection plates 96 and 96a are formed in an arc shape with notch portions g and h of about 1/3, and as shown in FIG. In the state, notch g,
Set the power transmission shaft 43 so that h has a notch angle θ of about 50 degrees.
The mounting position of the sheet paper feeding device A is shifted in the circumferential direction, and the rotational position of the movable plate 50 is detected by the output of the light receiving element. It is possible to detect that the movable plate 50 has arrived at the operating position ((a) to (h) in FIG. 16) and cause the feeding mechanism section C and the like to perform a desired operation.

The sheet paper P is, as shown in FIG.
A linear perforation c for cutting is provided in the width direction at regular intervals in the feeding direction, and a perforation a having a shape conforming to the inner shape of the toilet seat body 11 is provided between the perforations c. However, a non-perforated part d is formed between both ends of the cutout perforation a, and when the cutout perforation a is cut, the central portion hangs down in the flush toilet bowl 10. Also,
One detection through hole b is provided at one side edge of the sheet paper P at regular intervals in the longitudinal direction, and the sheet paper roll R is further provided.
The last sheet of paper P1 wound around the sheet has a through hole b1 for detecting paper breakage. When the paper position detecting sensor 70 detects this, the paper trouble lamp LE
I am trying to light D2.

Next, various circuits forming the control section F will be described in more detail with reference to FIGS.

FIG. 7 shows a power supply circuit 102 provided with a dry battery 101, and has a feeding DC motor M1 as an electric motor for driving the paper feeding mechanism and a cutting DC motor M2 as an electric motor for driving the paper cutting mechanism. Drive power supplied Vcc
, Voltage regulator IC4, capacitors 148, 151 and diode
A constant voltage power supply Vdd supplied to the control unit F is output via a constant voltage circuit composed of 149.

FIG. 9 shows the input of the microcomputer 104.
It is an explanatory view of each circuit connected to the output end, and is configured as follows.

A seating detection circuit 111 is composed of a seating detection sensor 72 including a photodiode and a phototransistor, and a phototransistor connected between the grounded emitter photodiode and the constant voltage power supply Vdd to serve as a switch. The base of the transistor is connected to the input terminal O2 of the microcomputer 104 via a resistor, and the emitter of the transistor is connected to the input terminal I2 of the microcomputer 104, and the transistor is output by the command from the output terminal O2 of the microcomputer 104. When is turned on, the photodiode is turned on and the seating detection sensor 72 is energized to detect seating and leaving.

Hereinafter, the sheet paper position detection circuit 110
The contents of the movable plate position detection circuits 112 and 112a have the same configuration.

Reference numeral 113 denotes a rotation speed detection circuit for the feeding DC motor M1, which is a commercially available incremental type rotary encoder.
I am using 113a.

Reference numeral 114 is a switch circuit, and 71 is a delivery switch.

Reference numeral 115 denotes a relay driving circuit, which is a relay between a transistor which functions as a switch connected to the output terminals O6 to O8 of the microcomputer 104 and the constant voltage power supply _Vcc-1.
X1 to X3 are connected to each other.The relay X1 opens and closes the auxiliary contacts X1a and X1b provided in the motor drive circuit 107, and the relays X2 and X3 also have auxiliary contacts X2a, X2b and X3.
Open and close a, X3b.

Reference numeral 116 is a display circuit for displaying paper jam and battery exhaustion, LED1 is a battery exhaustion indicator lamp, and LED2 is a paper trouble lamp.

Reference numeral 117 denotes a battery voltage detection circuit.
For 117, the drive voltage is the battery dead warning voltage (4.0 to 4.5V)
The first voltage detection element IC1 for detecting that the drive voltage has become the dead battery voltage (4.0 to 3.5 V), the second voltage detection element IC2 for detecting that the drive voltage has become the dead voltage (4.0 to 3.5 V), and the reset voltage ( The voltage is equal to or less than 3.5 V) and a third voltage detection IC3 for detecting that the detection signal corresponding to the battery voltage is supplied to predetermined input terminals I7 to I9 of the microcomputer 104.
To display the battery voltage on the low battery indicator lamp LED1. RC indicates a reset circuit.

The motor drive circuit 107 shown in FIG. 8 includes auxiliary contacts X1a, X1b to X3a, X3b of the relays X1 to X3 and a feeding DC motor M1 between the drive power source Vcc and the ground (ground), respectively. A DC motor M2 for cutting or the like is individually connected in series to form a first motor circuit (for paper feed) 105 and a second motor circuit 10
It is configured with 6 and.

(Summary of the Invention) In the above-described structure, the present invention uses the dry battery 101 on the drive program or by using a specific control circuit, as described below with reference to FIGS. Is characterized in that it can accurately determine the driving voltage of the battery, prolong the battery life, and significantly enhance the power saving effect.

(First Battery Life Determining Means) This means allows the driving voltage of the dry battery 101 to be accurately determined on the basis of the driving program, and extends the battery life.

That is, as described in the section of the prior art with reference to FIG. 18, when the feeding DC motor M1 or the like of the feeding mechanism section C is started, a large voltage drop D is generated instantaneously, Since the power supply voltage detection circuit 117 of FIG. 6 always detects the driving voltage V _cc-1 , it is necessary to detect this voltage drop D and notify the replacement of the battery even though there is a sufficient driving voltage. Become.

Therefore, in this means, in advance,
As shown in FIG. 18, the driving program of the microcomputer 104 does not see the voltage in the power supply voltage detection circuit 117 for a fixed time t (for example, 200 ms) by the timer means from the time of starting the feeding DC motor M1. I am creating it.

Therefore, even if an instantaneous voltage drop D occurs within a certain time t, the power supply voltage detection circuit 117 does not generate a detection output, so the display circuit for indicating the dead battery does not operate,
No need to change batteries. That is, the display circuit 116 informs the administrator that the battery needs to be replaced only when the driving voltage of the dry battery 101 actually drops.
101 life can be extended.

The timer means is operated even when the cutting motor M2 of the cutting mechanism section D is started, and the power supply voltage detection circuit 11 is operated.
The voltage of 7 may be canceled, or the timer means may be operated when either the feeding or cutting motor M1, M2 is started.

(Second Battery Life Determining Means) This means connects the battery life expiration voltage detecting means directly to the driving power source, and the reset voltage detecting means through the backup circuit composed of the diode and the capacitor. It is characterized by being connected to.

That is, as shown in FIGS. 7 and 9, in the power supply circuit 102, the battery dead warning display voltage (4.0 to 4.5
V) voltage detection element IC1 and battery detection voltage (4.0 to 3.5 V) voltage detection element IC
The output terminal V _cc-1 connected to 2 is directly connected to the dry battery 101.

On the other hand, in the power supply circuit 102, the output terminal V _cc-2 connected to the reset voltage detecting element IC3 for detecting the reset voltage has its function separated from the above-mentioned output terminal V _cc-1 by the diode 150. , And is connected to the capacitor 151.

Therefore, in the conventional power supply circuit 102, as shown by the alternate long and short dash line in FIG.
Although a large voltage drop D is instantaneously generated when M1 and the like are activated, in the present invention, the capacitor 151 can suppress the above voltage drop as shown by the solid line in FIG. 18, and the power supply voltage detection circuit 117. Does not generate a detection output, the display circuit 116 indicating that the battery is dead does not operate, and it is not necessary to replace the dry battery 101. That is, the display circuit 116 informs the administrator that the battery needs to be replaced only when the driving voltage of the dry battery 101 actually drops, and the life of the dry battery 101 can be extended.

(Third Battery Life Determining Means) The present invention is characterized in that the drive signal of the feed switch 71 is not accepted after the first reset due to the voltage drop.

As shown in FIG. 20, when the drive voltage drops below the reset voltage during operation of the sheet paper feeder, the reset detection element IC3 resets the entire drive program. Conventionally, since the initial operation is returned each time a reset is generated, the microcomputer 104 receives the drive signal even if the feeding switch 71 is operated again. Therefore, it becomes difficult to judge the battery life.

Therefore, in the present invention, as shown in FIG.
The drive program is set so as not to receive the drive signal of the feed switch 71 thereafter after the first reset due to the voltage drop.

With such a structure, the life of the dry battery 101 can be accurately determined and can be replaced promptly. As shown in FIG. 20, the driving voltage becomes 0V by removing the dry battery 101 from the dry battery case 15a for replacement, but by mounting the dry battery 101 again, the set terminal is activated and the reset function is restored. be able to.

[0055]

According to the present invention, there is provided a sheet paper feeding device including a drive mechanism section electrically driven by a battery voltage, a control section for controlling the drive mechanism section, and a voltage detecting means for detecting the battery voltage. The control unit includes a timer unit that ignores the voltage detected by the voltage detection unit for a certain period of time after the drive mechanism unit is activated. With such a configuration, when the feeding motor or the like of the sheet paper feeding mechanism that is the drive mechanism is activated, the voltage detection circuit does not see the voltage drop even if a large voltage drop occurs momentarily.
The indicator circuit that indicates when the battery is dead does not work and the battery does not need to be replaced. That is, the display circuit allows the administrator to accurately determine that the battery needs to be replaced only when the driving voltage of the battery actually drops, and can extend the life of the battery.
In addition, the battery life is accurately determined by connecting the voltage detection means to the battery voltage via a voltage backup circuit, or by the control unit not driving the drive mechanism section after the voltage detection means detects a predetermined voltage. It can also be performed by configuring the above.

[0056]

[Brief description of drawings]

FIG. 1 is an overall perspective view of a toilet device including a sheet paper supply device according to the present invention.

FIG. 2 is a partially cutaway plan view of the toilet device.

FIG. 3 is a partially cutaway right side view.

FIG. 4 is a sectional side view of a dry battery case.

5 is a view taken along line I-I of FIG.

FIG. 6 is a view taken along line II-II in FIG.

FIG. 7 is an explanatory diagram of a battery circuit.

FIG. 8 is an explanatory diagram of an electric motor drive circuit.

FIG. 9 is an explanatory diagram showing a connection state of a microprocessor.

FIG. 10 is an enlarged plan view of a seating detection sensor as seating detection means.

FIG. 11 is a front view of the same section.

12 is a sectional view taken along line III-III in FIG.

FIG. 13 is a plan view of a movable plate position detection required sensor.

FIG. 14 is a perspective view of the same.

FIG. 15 is an operation explanatory diagram.

FIG. 16 is an operation explanatory view of the sheet paper supply device.

FIG. 17 is a plan view of the sheet paper.

FIG. 18 is a graph illustrating the operation of the first battery life determining means.

FIG. 19 is a graph illustrating the operation of the second battery life determining means.

FIG. 20 is a graph for explaining the operation of the third battery life determining means.

FIG. 21 is a graph illustrating the operation of the third battery life determining means.

[Explanation of symbols]

 11 Toilet seat body 101 Dry battery 102 Power supply circuit 116 Display circuit 117 Power supply voltage detection circuit 150 Diode 151 Capacitor C Feeding mechanism part D Cutting mechanism part F Control part P Sheet paper

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Atsushi Nakata Atsushi Nakata 2-1, 1-1 Nakajima, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Totoki Kikai Co., Ltd. (72) Inventor Takayoshi Adachi 1 Aichi-cho, Kasugai-shi, Aichi Aichi Electric Co., Ltd.

Claims (3)

[Claims] 1. A sheet paper supply device comprising: a drive mechanism section electrically driven by a battery voltage; a control section for controlling the drive mechanism section; and a voltage detecting means for detecting the battery voltage. And a battery-driven sheet paper supply device, which comprises timer means for ignoring the voltage detected by the voltage detection means for a certain period of time after the drive mechanism is activated. 2. A sheet paper feeding device comprising: a drive mechanism section electrically driven by a battery voltage; a control section for controlling the drive mechanism section; and a voltage detecting means for detecting the battery voltage. The means is a battery-operated sheet paper supply device in which the means is connected to the battery voltage via a voltage backup circuit. 3. A sheet paper feeding device comprising: a drive mechanism section electrically driven by a battery voltage; a control section for controlling the drive mechanism section; and a voltage detecting means for detecting the battery voltage. Is a battery-operated sheet paper supply device, characterized in that the voltage detection means does not drive the drive mechanism section after detecting a predetermined voltage.