JP3105601B2 - Battery driven sheet paper feeder - Google Patents

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 feeding apparatus 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 has previously disclosed in Japanese Patent Application No. 3-92133 a sheet paper roll from a sheet paper roll stored in a roll storage section in a functional casing through a delivery path onto a toilet seat body. Paper feeding mechanism,
A sheet paper cutting mechanism that cuts the rear end of the sheet paper fed onto the toilet seat body and clamps the rear end; and a control unit that controls the operations of the sheet paper feeding mechanism and the sheet paper cutting mechanism. A battery-powered sheet paper supply device that can be driven by a battery has been disclosed.

[0003] In addition, by adopting such a configuration, a sheet paper supply device can be installed in a place where wiring of a commercial power supply is difficult or undesirable in an existing building or the like, for example, in a unit bus so as to ensure sufficient safety. can do.

Since the above-mentioned sheet paper supply device is driven by a battery, the driving voltage gradually decreases as the number of times of use increases, and eventually the driving motor of the sheet paper feeding mechanism and the sheet paper cutting mechanism can be driven. Disappears.

Therefore, the sheet paper supply device is provided with voltage detecting means, which constantly detects the voltage of the driving power supply,
If the drive voltage falls below the set voltage, the drive program is reset to notify the administrator of the need to replace the battery or to notify the administrator of the need to replace the battery or to avoid problems due to low voltage operation of the control device, in advance of the battery life. ing.

[0006]

However, the above-described battery-driven sheet paper supply apparatus 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 large drive voltage occurs instantaneously. In practice, the battery has to be replaced in order to give notice of running out and to determine the running out of the battery, even though the battery still has a sufficient driving voltage. For this reason, the battery is wasted, and there is a problem in power saving measures.

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

[0009]

According to the present invention, there is provided a seat provided with a driving mechanism electrically driven by a battery voltage, a controller for controlling the driving mechanism, and a voltage detecting means for detecting the battery voltage. In the paper supply device, the control unit may be a battery-driven sheet paper supply device including a timer unit that ignores a voltage detected by a voltage detection unit for a certain period of time after the driving mechanism unit is started.

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

[0011] The present invention further provides a sheet paper feeding apparatus comprising a driving mechanism electrically driven by a battery voltage, a controller for controlling the driving mechanism, and voltage detecting means for detecting the battery voltage. The control section does not drive the drive mechanism section after the voltage detection section detects a predetermined voltage, and the control section relates to a battery-driven sheet paper supply apparatus.

[0012]

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

As shown in FIGS. 1 and 2, a sheet paper feeding device A is mounted on a flush toilet 10 so as to be openable and closable, and a seat body 11 is fixedly placed on a rear portion of the flush toilet 10. The rear portion of the toilet seat body 11 is formed by a functional pivot 13 and a simple pivot 13a, and a functional portion 14 pivotally supported in a vertically upright manner. In the figure, 8 is a sheet paper delivery path,
11e indicates an opening.

As shown in FIG. 2 to FIG.
Is a functional casing 15 attached to the back of the flush toilet 10.
And a drive mechanism section (delivery mechanism section C, cutting mechanism section D), a roll storage section E, a control section F, an operation section G, and a dry battery case 15a disposed in the casing 15.

Next, the construction of the functional casing 15 will be described. As shown in FIGS. 3 and 4, the casing 15 has a lower casing 16 having a feeding mechanism C, a cutting mechanism D, and the like built therein. And an upper casing 17 fitted and connected to an upper edge of the lower casing 16 and forming a roll storage portion E therein.

Also, as shown in FIG.
Stand the bearing boxes 30, 31 on the left and right sides of 16, respectively.
In the right bearing box 31, there is an extension roller of the extension mechanism C.
33, a feeding DC motor M1 and a cutting DC motor M2, which are driving sources of the movable plate 50 of the cutting mechanism D, are provided.

As shown in FIGS. 3 and 5, the feeding mechanism portion C includes left and right bearing boxes 30, 31 of the lower casing 16.
Feeding shaft connected to the feeding DC motor M1
The feeding roller 33 is fixed to the feeding shaft 32, and the sheet paper P is pressed and nipped in cooperation with the pressing roller 34 disposed above the feeding roller 33. The sheet paper P is fed out onto the toilet seat body 11.

The cutting mechanism D includes, as shown in FIGS. 3 and 6, a disc cam 44 fixed to a power transmission shaft 43 connected to a cutting DC motor M2 disposed in the right bearing box 31;
A movable plate 50 that is swingably disposed around a pivot 49 and whose outer peripheral surface is engaged with the outer peripheral surface of the disc cam 44, and that is disposed above the movable plate 50, and is freely pivotable about the pivot 52. And a swinging plate 51 pivotally supported by the arm. Reference numeral 56 denotes a pressing piece provided at the rear part of the upper surface of the movable plate 50. The pressing piece 56 can clamp the sheet paper P in cooperation with a pressing piece 57 forming the front part of the swinging plate 51. Further, a cutting portion 58 integral with the pressing piece 57 is formed at a rear portion of the swing plate 51. In addition, BP is a sewage intrusion prevention barrier attached to the upper front part of the movable plate 50.

As shown in FIGS. 3, 5 and 6, the roll storage section E is provided with roll holders 60 and 61 in the left and right bearing boxes 30 and 31, respectively, and a sheet paper P in the paper tube R1.
Are supported in a replaceable manner on a sheet paper roll R formed by multiple windings.

As shown in FIGS. 7, 8, and 9, the control unit F
A power supply circuit 102, various circuits connected to input and output terminals of a microcomputer 104, and an electric motor drive circuit 107 including first and second motor circuits 105 and 106 having auxiliary contacts of relays provided in these circuits. And a paper position detection sensor 70 that detects the position detection through hole b provided in the sheet paper P and generates an output, a feeding switch 71 provided in an operation unit G described later, a 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 C and the cutting mechanism D, a memory for storing a feeding / clamping / cutting program for the sheet paper P, and a timer. Have been.

As shown in FIG. 2, the operation unit G is provided above the right front portion of the lower casing 16, and includes a feed switch 71, a power lamp including a light emitting diode, and the like, for paper jams, 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 operation unit G, as shown in FIG.
Dry battery case 15a that can hold four D-size batteries 101
The 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 freely opened and closed.

At the right front position of the functional casing 15,
As shown in FIG. 2, a paper position detection sensor 70 is provided, and the position detection sensor 70 includes a phototransistor and a photodiode. When the sheet is fed onto the toilet seat body 11, the paper position detection sensor 70 detects the position detection through-hole b formed in the sheet paper P, and stops the operation of the feeding mechanism C.
The sheet paper P can be supplied onto the toilet seat main body 11 in a specific manner.

As a means for detecting seating, a seating detection sensor 72, as shown in FIG. 2, connects the opposite ends of the rear part of the toilet seat body 11 to the front part of the functional part casing 15 via the functional pivot 13 and the simple pivot 13a. It is detachably and rotatably mounted on pivot portions 14a provided on both sides, and detects the presence or absence of seating by the load applied to the toilet seat body 11, and is disposed inside the pivot portion 14a and interlocks with the functional pivot 13. Are linked.

The function axis 13 is, as shown in FIGS.
It is inserted into the pivot support portion 14a through an elongated hole 75 provided vertically in the inner wall of the pivot support portion 14a, and is rotated by a movable bearing 77 which is disposed in the lift guide casing 76 so as to be able to move up and down. 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 regulating plate 79. Therefore, the movable bearing 77 is normally in the upper position shown in FIG. 12 (when the toilet seat body 11 is not seated). Status)
The functional pivot 13 and the toilet seat main body 11 also assume the upper positions shown in FIG. The functional pivot 13 has a substantially arc-shaped lever pressing piece 80 protruding from the insertion end thereof, and a sensor activation lever 81 disposed below the lever pressing piece 80. Reference numeral 81 designates the base end portion 81a to be able to move up and down inside, and is urged upward by a coil spring 82 so that the upper surface of the sensor activation lever 81 is always in contact with the lever pressing piece 80. 83 is a lever elevating guide casing, 84 is a shielding plate protruding from the tip of the sensor activation lever 81, and is a light projecting element 85a and a light receiving element 85b of an infrared sensor 85 disposed in the pivot 14a of the functional casing 15. It is interposed between and.

Further, on the opposite side of the toilet seat body 11 of the functional pivot 13, a toilet seat body engaging portion 86 having a flat cross section is formed, and is fitted into the pivot engaging hole 87 so as not to rotate.
When the seat 11 is seated (separated), its arc-shaped portion comes into contact with the sensor activation lever 81, and the functional pivot 13, the excessive bearing 77, the lever pressing piece 80, and the sensor are pressed against the urging force of the coil spring 82. The starting lever 81 descends (rises),
The shielding plate 84 turns on (off) the infrared sensor 85 by interrupting conduction between the light-emitting element 85a and the light-receiving element 85b.
11 postures can be detected. With these outputs, the control unit F suppresses the operation of the feeding mechanism unit C even when the feeding switch 71 is pressed when the toilet seat main body 11 is in the paper feeding disabled state, so that the seat in the functional unit casing 15 can be moved. The paper P can be prevented from being entangled or jammed.

The movable plate position detection sensors 93 and 93a are shown in FIG.
As shown in FIGS. 13, 14, and 15, a photointerrupter type including a light emitting element, a light receiving element, and a pair of detection plates 96 and 96a, and as shown in FIGS. Sensor mounting box 95 provided on the bottom of the casing near the center of 43
Housed within.

As shown in FIGS. 13, 14, and 15, the detection plates 96 and 96a are formed in an arc shape with approximately one-third notches g and h, and as shown in FIG. In the state, the notch g,
h so that the notch angle θ is about 50 degrees.
The mounting position of the sheet paper feeding apparatus A is shifted in the circumferential direction, and the rotation position of the movable plate 50 is detected based on the output of the light receiving element. It is possible to detect that the movable plate 50 has come to the operating position ((a) to (h) in FIG. 16) and to cause the feeding mechanism C or 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 a certain interval in the feeding direction, and a perforation a for cutting in a shape adapted to the inner shape of the toilet seat body 11 is provided between each perforation c. However, a non-perforated portion d is formed between both ends of a rear portion of the cutout perforation a, and when the cutout perforation a is cut, the central portion is made to hang down in the flush toilet 10. Also,
On one side edge of the sheet paper P, one detection through hole b is provided at regular intervals in the longitudinal direction.
In the last sheet of paper P1 wound around, a through hole b1 for detecting paper breakage is formed, and when the paper position detection sensor 70 detects this, the paper trouble lamp LE
D2 is turned on.

Next, various circuits constituting the control unit 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. The power supply circuit 102 includes a feeding DC motor M1 as a motor for driving a paper feeding mechanism, and a cutting DC motor M2 as a motor for driving a paper cutting mechanism. Driving power supply Vcc
And constant voltage element IC4, capacitors 148 and 151 and diode
The constant voltage power supply Vdd supplied to the control unit F via the constant voltage circuit consisting of 149 is output.

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

Reference numeral 111 denotes a seating detection circuit, which is constituted by a seating detection sensor 72 comprising a photodiode and a phototransistor, and a phototransistor connected between the grounded-emitter photodiode and the constant-voltage power supply Vdd and serving as a switch. The base of the transistor is connected to the input terminal O2 of the microcomputer 104 via a resistor, the emitter of the transistor is connected to the input terminal I2 of the microcomputer 104, and the transistor is controlled by the command from the output terminal O2 of the microcomputer 104. When is turned on, the photodiode is turned on to energize the seating detection sensor 72 to detect seating and leaving.

Hereinafter, a sheet paper position detecting circuit 110 will be described.
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 of the feeding DC motor M1, which is a commercially available incremental type rotary encoder.
I'm using 113a.

Reference numeral 114 denotes a switch circuit, and reference numeral 71 denotes a delivery switch.

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

Reference numeral 116 denotes a display circuit for displaying a paper jam and running out of batteries. LED 1 shows a battery running out lamp, and LED 2 shows a paper trouble lamp.

Reference numeral 117 denotes a battery voltage detection circuit.
117 indicates that the drive voltage is the dead battery notice voltage (4.0 to 4.5V)
, A second voltage detecting element IC2 for detecting that the drive voltage has reached the dead battery voltage (4.0 to 3.5 V), and a drive voltage for the reset voltage ( (3.5 V or less), and a detection signal corresponding to the battery voltage is supplied to predetermined input terminals I7 to I9 of the microcomputer 104.
And the battery voltage is displayed by the battery-out indicator 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 supply Vcc and the ground (ground), respectively. A DC motor M2 for cutting or the like is individually connected in series, and a first motor circuit (for paper feeding) 105 and a second motor circuit 10 are connected.
6 is provided.

(Summary of the Present Invention) In the above-described configuration, the present invention uses a dry battery 101 on a driving program or by using a specific control circuit as described below with reference to FIGS. It is characterized in that the drive voltage of the battery can be accurately determined, the battery life can be extended, and the power saving effect can be remarkably enhanced.

(First Battery Life Determining Means) This means is to make it possible to accurately determine the driving voltage of the dry battery 101 on the basis of a driving program and to extend 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 of the feeding mechanism C is started, a large voltage drop D occurs instantaneously. Since the power supply voltage detection circuit 117 always detects the drive voltage _Vcc-1 , this voltage drop D is detected and the battery replacement is notified in spite of the sufficient drive voltage. Become.

Therefore, in this means,
As shown in FIG. 18, the drive program of the microcomputer 104 is controlled by the timer means from the start of the feeding DC motor M1 or the like, and the voltage is not detected in the power supply voltage detection circuit 117 for a fixed time t (for example, 200 ms). It is created as follows.

Therefore, even if an instantaneous voltage drop D occurs within the predetermined time t, the power supply voltage detection circuit 117 does not generate a detection output, so that the display circuit for indicating that the battery is dead 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 is actually lowered.
The life of 101 can be extended.

The timer means is also operated when the cutting motor M2 of the cutting mechanism D is started, so that the power supply voltage detecting circuit 11
7 may be canceled, or the timer means may be operated when one of the feeding or cutting motors M1 and M2 is started.

(Second Battery Life Determining Means) This means connects the battery life expiring voltage detecting means directly to the driving power source and connects the reset voltage detecting means to the driving power source via a backup circuit comprising a diode and a capacitor. Characterized in that it is connected to

That is, as shown in FIG. 7 and FIG.
V) and a voltage detection element IC for detecting a dead battery display voltage (4.0 to 3.5 V).
The output terminal _Vcc-1 connected to the battery 2 is directly connected to the dry cell 101.

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

Therefore, in the conventional power supply circuit 102, as shown by a dashed line in FIG.
When the M1 and the like are activated, a large voltage drop D occurs instantaneously. In the present invention, as shown by the solid line in FIG. 18, the capacitor 151 can suppress the above-mentioned voltage drop, and the power supply voltage detection circuit 117 Does not generate a detection output, the display circuit 116 for indicating battery exhaustion does not operate, and there is no need to replace the dry battery 101. That is, the display circuit 116 notifies the administrator that the battery needs to be replaced only when the driving voltage of the dry battery 101 is actually lowered, 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 feeding switch 71 is not accepted after the first reset due to the voltage drop.

As shown in FIG. 20, when the drive voltage drops and becomes equal to or lower than the reset voltage during the operation of the sheet paper feeding apparatus, the entire drive program is reset by the reset detection element IC3. Conventionally, the microcomputer 104 returns to the initial operation every time a reset occurs, so that the microcomputer 104 receives a drive signal even if the delivery switch 71 is operated again. Therefore, it is difficult to determine the battery life.

Therefore, in the present invention, as shown in FIG.
After the first reset occurs due to the voltage drop, the drive program does not accept the drive signal of the feeding switch 71 thereafter.

With this configuration, the life of the dry battery 101 can be accurately determined, and the dry battery 101 can be quickly replaced. As shown in FIG. 20, when the battery 101 is removed from the battery case 15a for replacement, the driving voltage becomes 0 V. However, when the battery 101 is mounted again, the set terminal is operated, and the reset function is also restored. be able to.

[0055]

According to the present invention, there is provided a sheet paper feeding apparatus including a driving mechanism electrically driven by a battery voltage, a controller for controlling the driving mechanism, and voltage detecting means for detecting the battery voltage. The control unit includes timer means for ignoring a voltage detected by the voltage detection means for a certain period of time after the drive mechanism is started. With this configuration, even when a large voltage drop occurs instantaneously when the feeding motor or the like of the sheet paper feeding mechanism section that is the driving mechanism section is started, the voltage detection circuit does not see the voltage drop.
The display circuit indicating that the battery is dead does not work, and there is no need to replace the battery. 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 is actually lowered, thereby extending the life of the battery.
In addition, the accurate determination of the battery life described above may be performed by connecting the voltage detection unit to the battery voltage via a voltage backup circuit or by the control unit not driving the drive mechanism unit after the voltage detection unit detects a predetermined voltage. It can also be performed by having such a configuration.

[0056]

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a toilet apparatus 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.

FIG. 5 is a view taken along the line II in FIG. 3;

FIG. 6 is a view taken along the line II-II in FIG. 3;

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

FIG. 8 is an explanatory diagram of a 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 sectional front view of the same.

FIG. 12 is a sectional view taken along line III-III in FIG. 11;

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 a diagram illustrating the operation of the sheet paper supply device.

FIG. 17 is a plan view of sheet paper.

FIG. 18 is a graph illustrating an operation of a first battery life determining unit.

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

FIG. 20 is a graph illustrating the operation of a third battery life determining unit.

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

[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 D Cutting mechanism F Control section P Sheet paper

Continued on the front page (72) Inventor Naoji Yamashita 1 Aichi-cho, Kasugai-shi, Aichi Prefecture Inside Aichi Electric Co., Ltd. (72) Inventor Takayoshi Adachi 1-Aichi-cho, Kasugai-shi, Aichi Prefecture Aichi Electric Co., Ltd. (56) References Special JP-A-4-193128 (JP, A) JP-A-4-322624 (JP, A) JP-A-2-168920 (JP, A) JP-A-3-105398 (JP, U) (58) Fields surveyed ( Int.Cl. ⁷ , DB name) A47K 13/18-13/22

Claims (3)

(57) [Claims] 1. A sheet paper feeding apparatus comprising: a driving mechanism electrically driven by a battery voltage; a control unit for controlling the driving mechanism; and voltage detecting means for detecting the battery voltage. A battery-driven sheet paper supply device comprising timer means for ignoring a voltage detected by a voltage detection means for a certain period of time after the drive mechanism section is started. 2. A sheet paper feeding apparatus comprising: a driving mechanism electrically driven by a battery voltage; a controller for controlling the driving mechanism; and voltage detecting means for detecting the battery voltage. The means is a battery-driven sheet paper supply device connected to the battery voltage via a voltage backup circuit. 3. A sheet paper feeding apparatus comprising: a driving mechanism electrically driven by a battery voltage; a control unit for controlling the driving mechanism; and voltage detecting means for detecting the battery voltage. (5) A battery-driven sheet paper supply device, wherein the voltage detection means does not drive the drive mechanism after detecting a predetermined voltage.