JP4356426B2 - Sanitary washing device - Google Patents

Description

  The present invention relates to a sanitary washing device that ejects washing water toward a human body part.

Conventionally, this type of sanitary washing device has a waiting time until the washing water is spouted toward the local body at the start of washing even when the driving torque of the motor becomes large due to contamination of foreign matter or foreign matter in the washing nozzle or gear. The torque applied to the motor is controlled so as not to increase the waiting time by increasing the torque of the motor so as not to increase the length (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 10-69316

  However, in the conventional configuration, when the driving torque of the motor becomes large, the waiting time until the cleaning water is jetted toward the human body portion during cleaning can be prevented from increasing. The motor torque cannot be reduced if the dirt or foreign matter mixed in the gears drops and the drive torque decreases, or if the motor drive torque is originally lower than other hot water cleaning devices. For this reason, the waiting time until the washing water is spouted toward the human body part at the start of washing is abnormally fast, giving the user a sense of incongruity.

The present invention solves the above-mentioned conventional problem, and even when the torque of the motor changes to a large or small, at the start of cleaning, the waiting time until the cleaning water is jetted toward the human body part can be optimized , It is an object of the present invention to provide a sanitary washing apparatus capable of performing stable local washing for a user.

  In order to solve the above-described conventional problems, a sanitary washing device of the present invention includes a nozzle unit that ejects cleaning water toward a human body part, a motor that drives the nozzle unit, the power of the motor is transmitted to the nozzle unit, and A gear having a plurality of marks applied uniformly, a driving distance measuring means for detecting a mark applied to the gear during rotation and measuring a driving distance and a driving time of the gear, and a control means for controlling a torque applied to the motor; The control means controls the torque applied to the motor based on the drive distance and drive time of the drive distance measuring means.

As a result, even when the torque of the motor changes in magnitude, the waiting time until the washing water is jetted toward the human body part at the start of washing can be optimized , and stable local washing can be provided to the user.

  The sanitary washing device of the present invention can always make the waiting time until the washing water is jetted toward the human body part at the start of washing, and can provide the user with stable local washing.

The first invention includes a nozzle means for injecting washing water toward the human private, a motor for driving said nozzle means, and transmitting the power of said motor to said nozzle means, and has been subjected equally a plurality of marks detecting a gear, the mark applied to the gear during rotation, a driving distance measurement means to measure the driving time between the marks, and a control hand stage, the control means, said driving distance measurement means A specific time storage device capable of storing in advance a specific time for comparison with the measured driving time between the marks, so that the driving time measured by the driving distance measuring means becomes the specific time. and controlling the torque applied to the motor, by a sanitary washing device, characterized the specific time of the specific time storage unit that can be changed, along with stabilizing the cleaning nozzle driving operation, It is capable of optimally changing the driving time of the nozzle means.

A second invention is, in particular, the control means in the first invention of the torque applied to the motor, characterized in that controlled by pulse width modulation, to stabilize the cleaning nozzle driving operation, stable to the user Provide local cleaning.

A third invention is, in particular, the control means in the first invention of the torque applied to the motor, characterized in that controlled by varying the voltage, to stabilize the cleaning nozzle driving operation, the user Provide stable local cleaning .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 shows a sanitary washing apparatus according to Embodiment 1 of the present invention.

  In the present embodiment, the nozzle means 1 that ejects cleaning water toward the human body part, the motor 3 that drives the nozzle means 1 to protrude to the cleaning position, the power of the motor 3 is transmitted to the nozzle means 1, and a plurality of The gear 2 with the mark applied uniformly, the mark applied to the gear 2 is detected during rotation, and the driving distance measuring means 4 for measuring the driving distance and driving time of the gear 2 and the torque applied to the motor 3 are controlled. The control means 5 controls the torque applied to the motor 3 based on the drive distance and drive time of the drive distance measuring means 4.

  As shown in FIG. 2, the control means 5 controls the motor 3 so that the interval at which the drive distance measuring means 4 detects the mark applied to the gear 2 when the gear 2 rotates is set to a predetermined interval 2 ms. The pulse output to the motor 3 is controlled so as to change the applied torque. When the driving distance measuring unit 4 detects the mark at a long interval, it determines that the rotation of the gear 2 is slow and increases the ON width of the output pulse in order to increase the torque of the motor 3, and when the detection interval is short, It is determined that the rotation of the gear 2 is fast, and control is performed to narrow the ON width of the output pulse in order to weaken the torque of the motor 3. That is, when the motor 3 is a DC motor, the control means 5 controls the torque applied to the DC motor by pulse width modulation.

  In addition, as shown in FIG. 3, the control means 5 is configured so that when the gear 2 is rotated, the drive distance measuring means 4 detects the mark applied to the gear 2 so that the interval for detecting the mark is 2 ms. The voltage output to the motor 3 is controlled so that the torque applied to the motor 3 is changed. When the drive distance measuring means 4 detects the mark at a long interval, it is determined that the gear 2 rotates slowly and the output voltage is increased to increase the torque of the motor 3, and when the detection interval is short, the gear 2 rotates. Is determined to be fast, and the output voltage is controlled to be low in order to weaken the torque of the motor 3. That is, when the motor is a DC motor, the control means controls the torque applied to the DC motor by changing the voltage.

  As described above, in the present embodiment, the control means 5 controls the torque applied to the motor 3 based on the driving distance and the driving time of the driving distance measuring means 4, and the driving distance measuring means when the gear 2 rotates. By changing the torque applied to the motor 3 so that the interval at which the mark 4 is applied to the gear 2 becomes a predetermined interval, the movement of the nozzle means 1 to the cleaning position is stabilized, and the user Can provide stable local cleaning.

  In the present embodiment, the interval at which the predetermined drive distance measuring means 4 detects the mark applied to the gear 2 is 2 ms, but this value can be set as appropriate.

  Further, the driving distance measuring means 4 detects the mark applied to the gear 2 at the time of rotation and measures the driving time between the marks, and the control means 5 is a specific time with the driving time measured by the driving distance measuring means 4. Thus, by controlling the torque applied to the motor 3, the cleaning nozzle driving operation can be stabilized, and stable local cleaning can be provided to the user.

(Embodiment 2)
FIG. 4 shows a sanitary washing device according to Embodiment 2 of the present invention.

  In the present embodiment, nozzle means 1 for ejecting washing water to the human body part during washing, a motor 3 for causing the nozzle means 1 to protrude to the washing position, a gear 2 for transmitting the power of the motor 3 to the nozzle means 1, The gear 2 is provided with a plurality of marks evenly, and the driving distance measuring means 4 for detecting the marks when the gear 2 rotates, the control means 5 for controlling the torque applied to the motor 3, and the driving distance measuring means 4 are provided on the gear 2. A specific time storage device 6 capable of storing in advance a specific time for comparison with the drive time measurement between applied marks is provided.

  As shown in FIG. 5, the control unit 5 determines the interval at which the drive distance measuring unit 4 detects the mark applied to the gear 2 during the rotation of the gear 2 for the specific time 3 ms stored in the specific time storage unit 6. The output pulse output to the motor 3 is controlled so that the torque applied to the motor 3 is changed. When the driving distance measuring unit 4 detects the mark at a long interval, it determines that the rotation of the gear 2 is slow and increases the ON width of the output pulse in order to increase the torque of the motor 3, and when the detection interval is short, It is determined that the rotation of the gear 2 is fast, and control is performed to narrow the ON width of the output pulse in order to weaken the torque of the motor 3.

  Further, as shown in FIG. 6, the control means 5 previously stores the interval at which the drive distance measuring means 4 detects the mark applied to the gear 2 when the gear 2 rotates in the specific time storage means 6. The voltage output to the motor 3 is controlled so as to change the torque applied to the motor 3 so that the specific time is 3 ms. When the drive distance measuring means 4 detects the mark at a long interval, it is determined that the gear 2 rotates slowly and the output voltage is increased to increase the torque of the motor 3, and when the detection interval is short, the gear 2 rotates. Is determined to be fast, and the output voltage is controlled to be low in order to weaken the torque of the motor 3.

  In this embodiment, since the specific time storage device 6 is provided, the drive time of the nozzle means 1 can be optimally changed by changing the specific time, and the nozzle means 1 can be moved to the cleaning position. The movement is stable, and a stable local cleaning can be provided to the user. Here, the specific time stored in advance in the specific time storage means 6 is 3 ms, but this value may be set to an optimum value as appropriate.

  About the concrete structure of above-described Embodiment 1, 2, it is as showing in FIG. 7, FIG. 8, and can be used similarly to the sanitary washing apparatus generally known.

  As described above, the sanitary washing device according to the present invention can always set the waiting time until the washing water is jetted toward the human body local area at the start of the washing, so that the user can perform a stable local washing. It can be provided, and is useful as a sanitary washing device for office use as well as general household use.

The block diagram of the sanitary washing apparatus in Embodiment 1 of this invention. The graph which shows the relationship between the space | interval which the drive distance measurement means detected the mark at the time of the gear rotation in the sanitary washing apparatus, and the pulse which a control means outputs to a motor The graph which shows the relationship between the space | interval which the drive distance measurement means detected the mark at the time of the gear rotation in the sanitary washing apparatus, and the voltage which a control means applies to a motor The block diagram of the sanitary washing apparatus in Embodiment 2 of this invention The graph which shows the relationship between the space | interval which the drive distance measurement means detected the mark at the time of the gear rotation in the sanitary washing apparatus, and the pulse which a control means outputs to a motor The graph which shows the relationship between the space | interval which the drive distance measurement means detected the mark at the time of the gear rotation in the sanitary washing apparatus, and the voltage which a control means applies to a motor External view of the entire sanitary washing device according to Embodiments 1 and 2 of the present invention Side view of the sanitary washing device seen through

DESCRIPTION OF SYMBOLS 1 Nozzle means 2 Gear 3 Motor 4 Driving distance measuring means 5 Control means 6 Specific time memory means

Claims (3)

And nozzle means for injecting washing water toward the human private, a motor for driving said nozzle means, and transmitting the power of said motor to said nozzle means, and a gear which has been subjected equally a plurality of marks, said gear the mark that has been subjected detected during rotation, the driving distance measurement means to measure the driving time between the marks, and a control hand stage, said control means, between the marks the driving distance measuring means has measured A specific time storage device capable of storing in advance a specific time for comparison with the drive time of the motor, and a torque applied to the motor so that the drive time measured by the drive distance measuring means becomes the specific time And the specific time of the specific time storage device can be changed . Said control means sanitary washing apparatus according to claim 1, characterized in that the torque applied to the motor is controlled by pulse width modulation. Said control means sanitary washing apparatus according to claim 1, characterized in that the torque applied to the motor is controlled by changing the voltage.

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