WO2014136371A1

WO2014136371A1 - Nozzle device and sanitary washing device using same

Info

Publication number: WO2014136371A1
Application number: PCT/JP2014/000206
Authority: WO
Inventors: 松村　充真; 良一古閑
Original assignee: パナソニック株式会社
Priority date: 2013-03-04
Filing date: 2014-01-17
Publication date: 2014-09-12
Also published as: JP5598637B1; CN105008628A; ES2831778T3; EP2966230B1; JPWO2014136371A1; CN105008628B; EP2966230A4; EP2966230A1

Abstract

A nozzle device (500) has a nozzle portion (700) comprising a jet outlet and a channel, a supporting portion (600), and a driving unit (800) comprising a flexible rack (810). The supporting portion (600) comprises a retaining unit (630), a guide rail (621), a rack guide (622) that guides the flexible rack (810), and a sliding unit (750) that engages with the guide rail (621). The flexible rack (810) is joined to the sliding unit (750), and the driving force imparted to the nozzle portion (700) acts between the retaining unit (630) front end and the sliding portion (750) back end. Thus, the nozzle portion (700) is capable of smoothly sliding and having a stable trajectory of motion, and the jet outlet of the nozzle portion (700) can move to a suitable washing position.

Description

Nozzle device and sanitary washing device using it

The present invention relates to a nozzle device for cleaning a local part of a human body and a sanitary cleaning device using the nozzle device.

Conventionally, as this type of nozzle device, a nozzle device including a discharge port, a nozzle head, three cylinders, and a drive unit has been proposed (for example, see Patent Document 1). A discharge port is provided in the front-end | tip part of a nozzle apparatus, and ejects the washing water which wash | cleans a local part. The nozzle head is provided at the rear end of the nozzle device, and is connected to a water supply tube that supplies cleaning water. The cylinder stores the nozzle head and constitutes a guide for the forward and backward movement of the nozzle head. Specifically, the cylinder includes a slidable first and second cylinder and a third cylinder fixed to the base of the nozzle device. The drive unit moves the nozzle head forward and backward. Specifically, the drive unit includes a flexible rack that is coupled to the rear end of the nozzle head and passes through the inside of the cylinder, and a drive unit that drives the flexible rack. Then, the flexible rack is driven forward and backward by the drive unit of the drive unit. As a result, the nozzle head and the first and second cylinders are configured to move forward and backward.

However, in the configuration of the conventional nozzle device, the cylinder serving as a guide for the forward and backward movement of the nozzle head is only the third cylinder fixed to the base of the nozzle device. The second cylinder is slidably supported by the third cylinder, and the first cylinder is slidably supported by the second cylinder. In this case, the movement trajectory of the nozzle head varies due to variations and fluctuations in the clearance between the nozzle head and the first cylinder and between the respective cylinders. Therefore, the position of the discharge port of the nozzle head cannot be sufficiently stabilized. As a result, since the cleaning water cannot be ejected accurately to the object to be cleaned, there is still room for improvement from the viewpoint of positioning accuracy of the cleaning position.

Japanese Patent No. 4793992

The present invention provides a nozzle device that stabilizes the movement trajectory of the nozzle portion and improves the positioning accuracy of the cleaning position.

Therefore, the nozzle device of the present invention includes a jet port, a nozzle portion having a flow path communicating with the jet port, a support portion that supports the nozzle portion so as to be able to advance and retreat, and a drive portion that moves the nozzle portion forward and backward. Including. The drive unit includes a flexible rack coupled to the nozzle unit, a gear that moves the flexible rack forward and backward, and a motor that drives the gear. The support portion includes a holding portion that surrounds and supports the nozzle portion at the tip portion, a guide rail that guides the forward and backward movement of the nozzle portion behind the holding portion, and a rack guide that guides the forward and backward movement of the flexible rack. And comprising. Furthermore, the nozzle part includes a sliding part that engages and slides on the guide rail. The flexible rack is coupled to the front portion of the sliding portion, and the driving force applied to the nozzle portion via the flexible rack acts between the front end of the holding portion and the rear end of the sliding portion. It has the composition to do.

This causes the sliding part to slide along the guide rail. At this time, the nozzle portion is supported by the holding portion on the front side and supported by the sliding portion on the rear side, and a driving force by the flexible rack is applied to an intermediate portion between the two support points. Therefore, smooth sliding and movement trajectory of the nozzle part can be stabilized. As a result, it is possible to realize a nozzle device in which the jet outlet of the nozzle portion is moved to an appropriate cleaning position and the positioning accuracy of the jet outlet is improved.

FIG. 1 is a perspective view showing an appearance of a state in which a sanitary washing device according to an embodiment of the present invention is installed on a toilet. FIG. 2 is a perspective view showing the inside of the main body of the sanitary washing device. FIG. 3 is a schematic diagram showing a configuration of a water circuit of the sanitary washing device. FIG. 4 is a perspective view showing a storage state of the nozzle device in the present embodiment. 5 is a cross-sectional view taken along line 5-5 shown in FIG. FIG. 6 is a perspective view showing the inside of the drive unit of the nozzle device. FIG. 7 is a longitudinal sectional view showing a storage state of the nozzle device. 8 is a detailed cross-sectional view of a portion B shown in FIG. FIG. 9 is a cross-sectional view of the nozzle portion in the axial direction showing the storage state of the nozzle device. FIG. 10 is a detailed cross-sectional view of a portion C shown in FIG. FIG. 11 is a perspective view showing the buttocks cleaning state of the nozzle device according to the first embodiment. FIG. 12 is a vertical cross-sectional view showing a state of cleaning the bottom of the nozzle device. 13 is a detailed cross-sectional view of a portion D shown in FIG. FIG. 14 is a cross-sectional view of the nozzle portion in the axial direction showing the bottom cleaning state of the nozzle device. 15 is a detailed cross-sectional view of a portion E shown in FIG. FIG. 16 is a perspective view showing a bidet cleaning state of the nozzle device according to the first embodiment. FIG. 17 is a longitudinal sectional view showing a bidet cleaning state of the nozzle device. 18 is a detailed cross-sectional view of a portion F shown in FIG. FIG. 19 is a sectional view in the axial direction of the nozzle portion showing the bidet cleaning state of the nozzle device. 20 is a detailed cross-sectional view of a portion G shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
<1> Configuration of Sanitary Cleaning Device Hereinafter, the configuration of the sanitary cleaning device in the embodiment of the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view showing an external appearance of the sanitary washing device according to the present embodiment installed on a toilet. FIG. 2 is a perspective view showing the inside of the main body of the sanitary washing device. FIG. 3 is a schematic diagram showing a configuration of a water circuit of the sanitary washing device.

As shown in FIG. 1, the sanitary washing device 100 according to the present embodiment includes at least a main body 200, a sleeve portion 210, a toilet seat 300, a toilet lid 400, and the like, and is installed on the upper surface 110 a of the toilet 110.

In the following, the arrangement of each component will be described with the installation side of the main body 200 of the sanitary washing device 100 as the rear, the installation side of the toilet seat 300 as the front, the right side from the rear toward the front, and the left side as the left. To do.

As shown in FIG. 1, the toilet seat 300 and the toilet lid 400 are attached to the main body 200 so as to be openable and closable via a rotation mechanism. In the state where the toilet lid 400 is opened, the toilet lid 400 stands up so as to be positioned at the rearmost part of the sanitary washing device 100. On the other hand, in the state where the toilet lid 400 is closed, the toilet lid 400 hides the upper surface 300 a that is the seating surface of the toilet seat 300 and a part of the main body 200. Further, the toilet seat 300 rotates from the state where it is placed on the upper surface 110a of the toilet 110 shown in FIG. 1 to the state where it stands on the front surface of the main body 200, like the toilet lid 400.

Further, the sleeve portion 210 is provided so as to protrude forward from the rear of the right side portion of the main body 200, and an operation portion 211, a plurality of operation switches 212, an indicator lamp 213, and the like are installed on the upper surface of the sleeve portion 210. The operation switch 212 operates each function of the sanitary washing device 100.

A toilet seat heater (not shown) is installed inside the toilet seat 300 and heats the seating surface of the toilet seat 300 to an appropriate temperature. The seating sensor (not shown) is provided at a bearing portion in the main body 200 that supports the rotation shaft of the toilet seat 300 and detects that the user is seated on the toilet seat 300. The seating sensor is composed of, for example, a weight-type seating sensor, and the switch is opened / closed by a change in weight caused by the user sitting on the toilet seat 300. Thereby, it is detected that the user is seated on the toilet seat 300.

As shown in FIG. 2, at least a nozzle device 500, a deodorizing device 220, a control unit 230, and the like are installed inside the main body 200. The nozzle device 500 is installed at the center of the main body 200. The deodorizing device 220 is disposed on the left side of the nozzle device 500, and sucks and deodorizes the odor in the toilet bowl 110. The control unit 230 controls each function of the sanitary washing device 100 based on the operation signal of the operation switch 212.

Furthermore, on the right side of the nozzle device 500, a hot water tank 245, which is a main component of the cleaning water supply unit 240, is installed. The hot water tank 245 is composed of a tank body molded from a resin material such as PP (polypropylene), for example. In addition, a sheathed heater (not shown) for heating the cleaning water is provided in the lower part of the tank body, and a thermistor (not shown) is installed as a temperature detector for detecting the temperature of the hot water near the sheathed heater. Yes. A vacuum breaker is installed on the upper surface of the tank body to adjust the pressure by introducing air from the outside when the pressure in the hot water tank 245 becomes negative.

3 is provided on the lower right side of the main body 200 and is connected to an external water pipe or the like. In addition, a strainer that removes dust and impurities contained in cleaning water such as tap water is incorporated in the faucet 241.

In addition, as shown in FIG. 3, a constant flow valve 242, a water stop solenoid valve 243, and a relief valve 244, which are components of the cleaning water supply unit 240, are provided in the flow channel 270 between the water tap 241 and the hot water tank 245. They are sequentially connected and installed in front of the hot water tank 245 shown in FIG.

The hot water tank 245 is connected to the flow control valve 900 of the nozzle device 500 via a connection tube 612 that constitutes a part of the flow channel 270. Then, the wash water supplied from the water pipe through the water tap 241 is heated in the hot water tank 245 and the hot water is supplied to the nozzle device 500. Furthermore, the hot water supplied to the nozzle device 500 is ejected from the nozzle portion 700 of the nozzle device 500 toward the user's local area, and the user's local area is washed.

Thus, the sanitary washing device of the present embodiment is configured.

The detailed configuration and operation of the nozzle device 500 will be described later.

<2> Configuration of Water Circuit of Sanitary Cleaning Device Hereinafter, the configuration of the water circuit in the sanitary cleaning device of the present embodiment will be described in detail with reference to FIGS. 1 and 2 and FIG.

FIG. 3 is a schematic diagram showing a water circuit that constitutes a flow path through which wash water of the sanitary washing device is supplied.

As shown in FIG. 3, a flow channel 270 for supplying cleaning water to the nozzle device 500 is formed inside the main body 200. Along the water flow path 270, a water tap 241, a constant flow valve 242, a water stop solenoid valve 243, a relief valve 244, a hot water tank 245, a flow control valve 900, a nozzle device 500, and the like are sequentially installed.

The water tap 241 is connected to a water pipe branched from the water pipe by a branch tap. A constant flow valve 242, a water stop solenoid valve 243, and a relief valve 244 are sequentially connected to the flowing water passage 270 between the water tap 241 and the hot water tank 245. Furthermore, a flow control valve 900 for switching the flow channel 270 and adjusting the flow rate is connected to the flow channel 270 between the hot water tank 245 and the nozzle unit 700 of the nozzle device 500. Further, a butt cleaning channel 714, a bidet cleaning channel 715, and a nozzle cleaning channel 716 constituting the nozzle unit 700 are connected to each port of the flow control valve 900. Accordingly, the cleaning water supplied from the water tap 241 is supplied to each flow path of the nozzle unit 700.

Hereinafter, the flow of the cleaning water in the main body 200 and the control of each component of the main body 200 by the control unit 230 will be specifically described.

First, tap water flowing through the water pipe is supplied to the water tap 241 as cleaning water. At this time, the supplied wash water is maintained at a constant flow rate for the wash water flowing through the flow channel 270 by the constant flow valve 242.

And the water stop solenoid valve 243 switches the supply state of the washing water to the hot water tank 245. The operation of the water stop solenoid valve 243 is controlled by the control unit 230 based on the operation of the operation unit 211.

Next, the hot water tank 245 heats the wash water supplied through the flowing water channel 270 to a predetermined temperature. The operation of the hot water tank 245 is controlled by the control unit 230 based on the operation of the operation unit 211 and the detection data of the thermistor.

Next, the wash water heated in the hot water tank 245 is supplied to the flow control valve 900 via the connection tube 612 that is a part of the flow channel 270. The flow control valve 900 supplies the cleaning water to any of the buttocks cleaning channel 714, the bidet cleaning channel 715, and the nozzle cleaning channel 716 by operating the stepping motor 920, for example. As a result, the cleaning water is ejected from any one of the outlets of the bottom cleaning outlet 711, the bidet cleaning outlet 712, and the nozzle cleaning outlet 713, which will be described later. The operation of cleaning and stopping the flow control valve 900 is controlled by the control unit 230 based on the operation of the operation unit 211 by the user. Further, the adjustment operation of the flow rate of the cleaning water to be ejected is controlled by the control unit 230 based on the flow rate set by the user using the operation unit 211.

Thus, the water circuit of the sanitary washing device of the present embodiment is configured.

<3> Configuration of Nozzle Device Hereinafter, the configuration of the nozzle device in the sanitary washing device of the present embodiment will be described with reference to FIGS. 4 to 20.

FIG. 4 is a perspective view showing a storage state of the nozzle device in the present embodiment. 5 is a cross-sectional view taken along line 5-5 shown in FIG. FIG. 6 is a perspective view showing the inside of the drive unit of the nozzle device. FIG. 7 is a longitudinal sectional view showing a storage state of the nozzle device. 8 is a detailed cross-sectional view of a portion B shown in FIG. FIG. 9 is a cross-sectional view of the nozzle portion in the axial direction showing the storage state of the nozzle device. FIG. 10 is a detailed cross-sectional view of a portion C shown in FIG. FIG. 11 is a perspective view showing a butt cleaning state of the nozzle device. FIG. 12 is a vertical cross-sectional view showing a state of cleaning the bottom of the nozzle device. 13 is a detailed cross-sectional view of a portion D shown in FIG. FIG. 14 is a cross-sectional view of the nozzle portion in the axial direction showing the bottom cleaning state of the nozzle device. 15 is a detailed cross-sectional view of a portion E shown in FIG. FIG. 16 is a perspective view showing a bidet cleaning state of the nozzle device. FIG. 17 is a longitudinal sectional view showing a bidet cleaning state of the nozzle device. 18 is a detailed cross-sectional view of a portion F shown in FIG. FIG. 19 is a sectional view in the axial direction of the nozzle portion showing the bidet cleaning state of the nozzle device. 20 is a detailed cross-sectional view of a portion G shown in FIG.

First, as shown in FIG. 4, the nozzle device 500 includes at least a support portion 600, a nozzle portion 700, a drive portion 800, a flow control valve 900, and the like. The support portion 600 is formed in a substantially triangular (including triangular) frame shape (see FIG. 6) molded from a resin material such as POM (polyoxymethylene: generally polyacetal or acetal resin). The nozzle unit 700 moves forward and backward along the support unit 600. The driving unit 800 drives the nozzle unit 700 so as to move in the forward / backward direction. The flow control valve 900 switches supply of cleaning water to each flow path of the nozzle unit 700.

In the following, the arrangement of the components of the nozzle device 500 is such that the storage direction of the nozzle unit 700 is the rear, the advance direction of the nozzle unit 700 is the front, the right side is the right side and the left side is the left side. Will be explained.

Hereinafter, each component of the nozzle device 500 will be specifically described.

As shown in FIG. 6, the support portion 600 is formed in a substantially triangular (including triangular) frame shape in a side view, and includes a bottom portion 610, an inclined portion 620, a vertical side portion 640, and the like. The bottom portion 610 is provided substantially horizontally (including horizontal), and the inclined portion 620 descends (forwards downward) from the rear to the front with respect to the bottom 610 and is provided above the bottom 610. Yes. The vertical side portion 640 is provided so as to join the bottom side portion 610 and the rear end of the inclined portion 620. The inclined portion 620 of the support portion 600 includes a guide rail 621 that guides the forward and backward movement of the nozzle portion 700 and a rack guide 622 that guides the flexible rack 810 of the driving portion 800. Are included). Further, a holding portion 630 having a substantially cylindrical shape (including a cylindrical shape) that supports the nozzle portion 700 so as to surround the nozzle portion 700 is integrally formed below the front end of the inclined portion 620.

At this time, as shown in FIG. 5, the guide rail 621 that guides the nozzle portion 700 disposed on the inclined portion 620 of the support portion 600 has a substantially T-shaped cross section (including a T-shape). . Furthermore, the rack guide 622 that guides the flexible rack 810 disposed on the inclined portion 620 of the support portion 600 is formed in a substantially U-shape (including a U-shape) with a cross section open on one side surface. ing. Thereby, the rack guide 622 regulates the upper and lower surfaces and the other side surface of the flexible rack 810 to guide the flexible rack 810.

Further, as shown in FIG. 6, the rack guide 622 is formed continuously from the inclined portion 620 of the support portion 600 to the vertical side portion 640 and the bottom side portion 610 of the rear portion of the support portion 600. At this time, the corner connecting the inclined portion 620 and the vertical side portion 640 of the support portion 600 and the corner connecting the vertical side portion 640 and the bottom side portion 610 are formed in a substantially arc shape (including an arc shape). The cross-sectional shape of the rack guide 622 formed on the vertical side portion 640 and the bottom side portion 610 of the support portion 600 is also substantially U-shaped (including the U-shape), similarly to the rack guide 622 of the inclined portion 620. Is formed. However, the opened side surface of the rack guide 622 is the left side surface in the inclined portion 620, but the right side surface opposite to the vertical side portion 640 and the bottom side portion 610 is open. The open surfaces of the vertical side portion 640 of the support portion 600 and the rack guide 622 of the bottom side portion 610 are closed by a support portion lid 660 made of another member shown in FIG.

Further, as shown in FIG. 6, the height dimension of the rack guide 622 that restricts the vertical movement of the flexible rack 810 is the same as the flexible rack 810 at the inclined portion 620 and the vertical side portion 640 of the support portion 600. It is formed in a dimension slightly larger than the thickness. On the other hand, the height direction of the rack guide 622 of the bottom side portion 610 of the support portion 600 is formed to be sufficiently larger than the thickness of the flexible rack 810. Thereby, in the bottom side part 610 of the support part 600, the resistance accompanying sliding with the rack guide 622 and the flexible rack 810 is reduced.

The drive unit 800 includes a flexible rack 810 coupled to the nozzle unit 700, a pinion gear 820 that meshes with the flexible rack 810, and a drive motor 830 that rotationally drives the pinion gear 820. Accordingly, the driving unit 800 moves the nozzle unit 700 forward and backward along the guide rail 621.

Further, the flexible rack 810 is formed by being integrally molded with, for example, TPE (thermoplastic elastomer) made of TPU (thermoplastic polyurethane) or TPEE (polyester elastomer). The flexible rack 810 is formed in a slightly curved band shape as a whole, a tooth shape that meshes with the pinion gear 820 of the drive unit 800 is formed on the curved inner peripheral surface, and the curved outer peripheral surface is a flat surface. Is formed. The curved outer peripheral surface of the flexible rack 810 is coated with a fluorine resin such as PTFE (polytetrafluoroethylene resin). Thereby, the frictional resistance between the flexible rack 810 and the rack guide 622 is reduced.

As shown in FIG. 6, a pinion gear 820 that meshes with the flexible rack 810 and drives the flexible rack 810 and a pinion gear 820 are provided at the corners of the vertical side portion 640 and the bottom side portion 610 of the support portion 600. A driving motor 830 for driving is installed. At this time, the drive motor 830 is composed of a stepping motor, for example, and the rotation angle is controlled by a pulse signal. The pinion gear 820 is installed at a position concentric with the corner of the rack guide 622, and the rotation shaft of the drive motor 830 is coupled to a bearing portion 820 a formed at the center of the pinion gear 820. Thereby, the rotation of the drive motor 830 is transmitted to the tooth profile of the meshing flexible rack 810 via the pinion gear 820 to drive the flexible rack 810.

Further, as shown in FIG. 9 and the like, a front stopper receiving portion 623 and a rear stopper receiving portion are disposed in the vicinity of the front end (holding portion 630 side) and the rear end (vertical side portion side) of the inclined portion 620 of the support portion 600. 624 is formed. Thereby, the sliding range of the nozzle cover 720 is regulated to a predetermined range.

7 and 8, a gap 740 is provided between the inner peripheral surface of the holding portion 630 of the support portion 600 and the outer peripheral surface of the nozzle cover 720 of the nozzle portion 700. Then, the cleaning water ejected from the nozzle unit 700 flows into a gap 740 formed between the inner peripheral surface of the holding unit 630 and the outer peripheral surface of the nozzle cover 720 of the nozzle unit 700. The outer peripheral surface of the nozzle cover 720 of the nozzle unit 700 is washed and discharged from the drain port 725.

Further, a nozzle lid 650 that opens and closes by the advancement and retraction of the nozzle unit 700 is provided in front of the holding unit 630 so as to be freely opened and closed. Then, when the nozzle portion 700 is stored, the nozzle lid 650 is blocked to prevent the nozzle portion 700 from being contaminated with feces or the like.

Further, as shown in FIG. 4, a water supply joint 611 is provided on the bottom side portion 610 of the support portion 600. The water supply joint 611 connects a water supply tube (not shown) connected to the cleaning water supply unit and a connection tube 612 that supplies the cleaning water from the support unit 600 to the flow control valve 900. Further, the water supply joint 611 is located at a position vertically below the intermediate position of the guide rail 621 corresponding to the approximate center (including the center) of the sliding range of the slider 750 constituting the sliding portion described later, and from the guide rail 621. It is located at a sufficiently distant position. With this arrangement, the length of the connection tube 612 can be shortened. Further, the deformation of the connection tube 612 when the nozzle portion 700 advances and retreats along the guide rail 621 can be reduced. Furthermore, resistance due to the connection tube 612 can be suppressed. As a result, the nozzle unit 700 can be smoothly slid along the guide rail 621.

Further, as shown in FIGS. 8 and 9, the nozzle portion 700 is molded of a resin material such as ABS (acrylonitrile, butadiene, styrene copolymer synthetic resin), for example, and includes a nozzle body 710, a nozzle cover 720, and a connecting portion. 730. The nozzle body 710 is formed, for example, in a rod shape, and includes a butt cleaning jet 711, a bidet cleaning jet 712, and a nozzle cleaning jet 713 on the front end side. Further, the nozzle body 710 includes a butt cleaning channel 714, a bidet cleaning channel 715, and a nozzle cleaning channel 716 communicating with the butt cleaning nozzle 711, the bidet cleaning nozzle 712, and the nozzle cleaning nozzle 713. Yes. The nozzle cover 720 is formed in a cylindrical shape, for example, and covers substantially the entire nozzle body 710 (including the whole). As will be described later, the connecting portion 730 engages the nozzle body 710 and the nozzle cover 720 and pulls the nozzle cover 720 with the nozzle body 710.

The nozzle unit 700 is supported in a state where the front side of the nozzle unit 700 is inserted into the holding unit 630 of the support unit 600 and is slidably installed in a state where the rear side is suspended by the guide rail 621. At this time, the nozzle unit 700 includes a storage position in which the nozzle unit 700 shown in FIGS. 4, 7, and 9 is stored behind the holding unit 630, and the nozzle unit 700 shown in FIGS. 11, 12, and 14. It moves so as to be able to advance and retreat between the buttocks cleaning position protruding from the holding portion 630 and the bidet cleaning position shown in FIGS.

Further, as shown in FIG. 9, the nozzle cover 720 includes a nozzle cover main body 721 and a connecting member 722. The nozzle cover main body 721 is formed, for example, by molding a thin stainless steel plate into a cylindrical shape, and the front end surface is a closed surface and the rear end surface is an open surface. The connecting member 722 is molded into a substantially cylindrical shape (including a cylindrical shape) using a resin material such as POM, for example, and a connecting piece 723 that engages with a pair of nozzle main bodies 710 at opposite positions of the end face portions (see FIG. 10). Is formed. Further, a nozzle cover stopper 726 for restricting the sliding range of the nozzle cover 720 is integrally formed on the right side of the rear end of the connecting member 722. The nozzle cover stopper 726 comes into contact with the front stopper receiving portion 623 and the rear stopper receiving portion 624 formed on the support portion 600, whereby the sliding range of the nozzle cover 720 is restricted.

Further, a part of the connecting member 722 of the nozzle cover 720 is fixed and integrated in a state of being inserted into the nozzle cover body 721 from the opening of the open surface provided at the rear end of the nozzle cover body 721.

Further, as shown in FIGS. 7 and 8, one nozzle opening 724 is provided on the front upper surface of the nozzle cover main body 721 at a position that can face the bottom cleaning jet outlet 711 and the bidet cleaning jet outlet 712 of the nozzle main body 710. Is provided. On the front lower surface of the nozzle cover main body 721, a drain outlet 725 is provided for discharging the wash water that has flowed into the nozzle cover main body 721 to the outside.

The nozzle body 710 is formed by molding with a resin material such as ABS, for example. At this time, the nozzle body 710 is formed with an outer diameter slightly smaller than the inner diameter of the nozzle cover 720. Accordingly, the nozzle body 710 and the nozzle cover 720 can slide smoothly with each other in a state where the nozzle body 710 is inserted into the nozzle cover 720.

Further, as shown in FIG. 8, a bottom cleaning jet outlet 711 and a bidet cleaning jet outlet 712 are arranged on the upper surface of the nozzle body 710 on the front end side with a space behind it. Further, as shown in FIG. 9, a nozzle cleaning jet 713 is provided on the left side surface behind the bidet cleaning jet 712.

Further, inside the nozzle main body 710, as shown in FIG. 7 and FIG. 9, a hip cleaning channel 714 arranged in a substantially straight line (including a straight line) from the rear end to the front end, and a bidet cleaning Three channels, a channel 715 and a nozzle cleaning channel 716, are formed as shown in FIG. Specifically, the buttocks cleaning channel 714 is disposed on the lower right side of the nozzle body 710. As shown in FIG. 13, the buttocks cleaning channel 714 is communicated with the buttocks cleaning jet port 711 by bending the channel toward the top surface of the nozzle body 710 near the tip. As a result, the washing water ejected from the buttocks washing ejection port 711 passes through the ejection opening 724 of the nozzle cover 720 disposed so as to be opposed and is ejected upward.

On the other hand, the bidet cleaning flow path 715 shown in FIG. 5 is arranged on the upper right side of the nozzle body 710. As shown in FIG. 18, the bidet cleaning channel 715 is communicated with the bidet cleaning nozzle 712 by bending the channel toward the top surface of the nozzle body 710 near the tip. As a result, the washing water ejected from the bidet washing ejection port 712 passes through the ejection opening 724 of the nozzle cover 720 disposed so as to face and is ejected upward.

5 is disposed on the left side of the nozzle body 710. As shown in FIGS. 9 and 19, the nozzle cleaning channel 716 is communicated with the nozzle cleaning jet 713 by bending the channel toward the left side of the nozzle body 710 in the vicinity of the tip. Accordingly, the cleaning water ejected from the nozzle cleaning ejection port 713 is ejected into the nozzle cover 720 and discharged from the drain port 725 of the nozzle cover 720 to the outside of the nozzle cover 720. That is, the washing water ejected from the nozzle cleaning ejection port 713 is used for cleaning the nozzle portion 700 and its surroundings.

Further, as shown in FIG. 4 and FIG. 7, a flow control valve 900 is installed on the rear end surface of the nozzle body 710. The flow control valve 900 includes, for example, a disc type valve main body 910 and, for example, a stepping motor 920 that drives a switching operation. The flow control valve 900 selectively supplies the cleaning water by selectively switching the buttocks cleaning channel 714, the bidet cleaning channel 715, and the nozzle cleaning channel 716.

Furthermore, the outer shell of the valve body 910 of the flow control valve 900 is molded from a resin material such as POM, for example. The upper part of the valve body 910 of the flow control valve 900 includes a slider 750 that forms a sliding part by suspending an integrally molded nozzle part 700 on a guide rail 621, a nozzle part 700, and a flexible rack 810. An engagement piece 751 to be engaged is disposed.

As shown in FIG. 5, the slider 750 has a substantially C-shaped (including C-shaped) cross section so as to hold a guide rail 621 having a substantially T-shaped (including T-shaped) guide rail. Yes. Only the vicinity of both end portions 750 a of the inner peripheral surface of the slider 750 is formed so as to contact the upper and lower surfaces of the guide rail 621. Furthermore, a concave portion 750b having a cross section recessed so as to form a gap with the guide rail 621 is formed at the center of the slider 750. Thereby, the contact area between the slider 750 and the guide rail 621 is reduced, and the sliding resistance is reduced.

As described above, the engagement piece 751 is integrally formed at the front end of the slider 750. As shown in FIG. 6, the flexible rack 810 is disposed behind the engagement piece 751. Accordingly, the driving force applied from the flexible rack 810 to the slider 750 is always applied to the front end portion of the slider 750 via the engagement piece 751. That is, the slider 750 inserted into the guide rail 621 can slide along the guide rail 621.

Further, the engagement piece 751 of the slider 750 engaged with the flexible rack 810 is disposed inside the rack guide 622. The flexible rack 810 is driven by the drive motor 830 via the pinion gear 820. As a result, the engagement piece 751 slides back and forth inside the rack guide 622, and the nozzle portion 700 slides back and forth along the guide rail 621.

At this time, when the nozzle part 700 slides, the front part of the nozzle part 700 is supported by the holding part 630, and the rear part is supported by the guide rail 621 via the slider 750. Accordingly, the driving force applied from the flexible rack 810 to the nozzle unit 700 is the front end and the rear end of the support unit 600 (specifically, the hose connection unit of the nozzle body 710 in the range in which the nozzle unit 700 moves). It is configured to be added in the middle of the position of the water supply port 911 that is located in the foremost position and the position that is stored in the rearmost position. Therefore, the frictional resistance (sliding resistance) between the guide rail 621 and the slider 750 that is generated by the driving force applied to the nozzle unit 700 can be suppressed. The reason for this is that when the water supply port 911 and the water supply joint 611 which are hose connection parts are gathered and arranged close to each other and the hose connection part comes close as the nozzle part 700 moves, the twisting force of the connection tube 612 Therefore, the torsional force becomes the sliding resistance. That is, when the nozzle part 700 moves back and forth, keeping the distance between the hose connection parts uniform can reduce the sliding resistance. Ideally, it is preferable that the connection tube 612 is provided at the center of a semicircle that is a trajectory of movement. However, the arrangement of the hose connection is usually limited. Therefore, in the present embodiment, the distance between the hose connection portions can be most uniformly maintained by providing any one of the hose connection portions in the center of the moving section in which the nozzle portion 700 slides. As a result, the nozzle part 700 can be smoothly slid.

As shown in FIG. 4, a water supply port 911 for supplying cleaning water to the flow control valve 900 is installed on the outer surface of the valve main body 910 of the flow control valve 900. The water supply port 911 is connected to a connection tube 612 that communicates with the water supply joint 611 of the support portion 600. Accordingly, the cleaning water is selectively supplied to each flow path of the nozzle unit 700 by the flow control valve 900.

Next, the configuration and operation of the connecting portion of the nozzle portion in the present embodiment will be described with reference to FIG. 10, FIG. 15, and FIG. As described above, the connecting portion 730 includes the connecting member 722 of the nozzle cover 720 and the connection receiving portion 717 of the nozzle body 710.

First, as shown in FIGS. 10, 15, and 20, the connection receiving portion 717 is formed on the right side of the outer periphery of the rear end portion of the nozzle body 710. The connection receiving portion 717 includes, for example, two substantially V-shaped (including V-shaped) grooves, and a front concave portion 717a and a rear concave portion 717b are formed at a predetermined interval in the front-rear direction. In addition, the space | interval of the front recessed part 717a and the back recessed part 717b is provided with the dimension equal to the space | interval of the hips washing | cleaning outlet 711 and the bidet washing | cleaning outlet 712.

On the other hand, the connecting member 722 of the nozzle cover 720 is formed of a resin material such as POM having a substantially cylindrical shape (including a cylindrical shape), and includes a connecting piece 723 and a connecting protrusion 723a. The connecting piece 723 is formed to protrude rearward at both sides of the rear portion of the nozzle cover 720. The connection protrusion 723a is formed at the rear end of the connection piece 723 in a substantially V shape (including a V shape) protruding inward.

In a state where the nozzle body 710 is inserted into the nozzle cover 720, the connection protrusion 723a is constantly pressed against the connection receiving portion 717 of the nozzle body 710 due to the elasticity of the connection member 722 of the nozzle cover 720. That is, the nozzle body 710 and the nozzle cover 720 are connected in a state where the connection protrusion 723a is engaged with the front recess 717a or the rear recess 717b. As a result, the nozzle cover 720 can be moved by being pulled by the nozzle body 710.

At this time, as shown in FIGS. 10 and 15, when the connecting projection 723a enters the front recess 717a, as shown in FIG. 18, the bidet cleaning outlet 712 of the nozzle body 710 and the ejection opening of the nozzle cover 720 724 is in an opposing state. On the other hand, as shown in FIG. 20, when the connecting projection 723a enters the rear recess 717b, the buttocks cleaning jet 711 and the jet opening 724 face each other as shown in FIG. 8 and FIG.

Thus, the nozzle device 500 of the present embodiment is configured.

<4> Operation and Action of Nozzle Device Hereinafter, the operation and action of the nozzle device in the sanitary washing device of the present embodiment will be described with reference to FIGS.

First, as shown in FIG. 7, in a storage state where the nozzle device 500 is not used, the nozzle body 710 is located at the rearmost part of the guide rail 621, and the nozzle cover 720 is also located at the rearmost part of the sliding range. At this time, as shown in FIG. 10, the nozzle cover stopper 726 of the nozzle cover 720 contacts the rear stopper receiving portion 624 provided at the rear portion of the support portion 600. That is, the nozzle body 710 and the nozzle cover 720 are disposed at the most retracted position. Therefore, this position is hereinafter referred to as a “storage position”, and this state is referred to as a “storage state”. At this time, as shown in FIG. 10, the nozzle main body 710 and the nozzle cover 720 are connected to each other with the connection protrusion 723 a of the connection piece 723 fitted in the front recess 717 a of the connection receiving portion 717.

Next, a case where cleaning is started from the storage state of the nozzle device 500 will be described with reference to FIGS.

First, the user operates the operation switch 212 for instructing cleaning. Thereby, the control part 230 starts control of each part.

Specifically, first, the control unit 230 drives the water stop solenoid valve 243 and the flow control valve 900 to supply cleaning water to the buttocks cleaning flow path 714. Then, washing water is ejected from the buttocks washing ejection port 711 toward the inner peripheral surface of the holding portion 630.

At this time, the jetted washing water is reflected by the inner peripheral surface of the holding portion 630 and flows through the gap 740 between the outer peripheral surface of the nozzle cover main body 721 and the inner peripheral surface of the holding portion 630. As a result, dirt on the outer peripheral surface of the nozzle cover main body 721 is mainly removed.

Then, after a predetermined time has elapsed, the control unit 230 controls the flow control valve 900 to stop the supply of cleaning water. This operation is referred to as “nozzle pre-cleaning”. This “nozzle pre-cleaning” is aimed at cleaning the outer peripheral surface of the nozzle cover main body 721 and discharging cold water or the like remaining in the flow path after the hot water tank 245. Thereby, “nozzle pre-cleaning” is completed.

Next, the controller 230 rotates the drive motor 830 in the forward direction to move the nozzle body 710 forward. At this time, the connection protrusion 723a of the connection piece 723 of the nozzle cover 720 is kept in a state of being fitted into the front recessed portion 717a of the connection receiving portion 717. Thereby, the nozzle cover 720 moves forward while being pulled and integrated with the nozzle body 710.

Hereafter, the operation set by the user is divided into hip cleaning, bidet cleaning and nozzle cleaning cleaning, and the operation will be described.

First, the case where the operation set by the user is the buttocks cleaning operation will be described.

As shown in FIGS. 11, 12, and 14, the nozzle body 710 and the nozzle cover 720 move forward from the origin state until the rotational speed of the drive motor 830 reaches a set value according to a preset control sequence. Then stop. At this time, the nozzle cover stopper 726 provided on the nozzle cover 720 is in a stopped state in contact with the front stopper receiving portion 623 of the support portion 600. That is, as shown in FIG. 13, the buttocks cleaning outlet 711 faces the outlet opening 724 of the nozzle cover body 721. This position is the “butt cleaning position”.

Next, the control unit 230 controls the water stop solenoid valve 243 and the flow control valve 900 to flow the cleaning water into the buttocks cleaning flow path 714 in the state of being arranged at the “butt cleaning position”. Start ass cleaning. Then, the washing water ejected from the buttocks washing ejection port 711 passes without contacting the ejection opening 724 of the nozzle cover body 721 and is ejected upward.

At this time, as shown in FIG. 13, the bidet cleaning jet outlet 712 is covered with the nozzle cover main body 721. Therefore, it is possible to prevent the sewage generated by the buttocks cleaning from being applied directly to the bidet cleaning spout 712. Thereby, the bidet washing jet outlet 712 can be kept clean.

Next, when the butt cleaning is stopped, the control unit 230 controls the water stop solenoid valve 243 and the flow control valve 900 to stop the supply of cleaning water. Then, the control unit 230 rotates the drive motor 830 in the reverse direction to move the nozzle body 710 and the nozzle cover 720 rearward to return to the original “storage position” shown in FIGS. 7 and 8.

Next, in the state of returning to the “storage position”, the control unit 230 controls the water stop solenoid valve 243 and the flow control valve 900 to supply cleaning water to the bottom cleaning channel 714. Then, washing water is ejected from the buttocks washing ejection port 711 through the ejection opening 724. The jetted cleaning water is reflected by the inner peripheral surface of the holding portion 630 and flows into the gap 740 between the outer peripheral surface of the nozzle cover main body 721 and the inner peripheral surface of the holding portion 630. Thereby, mainly the nozzle cover The dirt on the outer peripheral surface of the main body 721 is effectively removed.

Next, the control unit 230 ejects the washing water from the buttocks washing outlet 711 and, after a predetermined time has elapsed, controls the water stop solenoid valve 243 and the flow control valve 900 to stop the supply of the washing water. The above-described cleaning operation is referred to as “nozzle post-cleaning”.

This completes the ass washing operation.

The following describes the case where the user selects bidet cleaning.

When bidet cleaning is selected, first, similarly to the butt cleaning, the control unit 230 rotates the drive motor 830 in the forward direction to move the nozzle body 710 forward. In the case of bidet cleaning, the nozzle body 710 is further moved forward beyond the buttocks cleaning position.

At this time, as shown in FIGS. 15 and 20, in the case of butt cleaning, the nozzle cover stopper 726 provided on the nozzle cover 720 contacts the front stopper receiving portion 623 of the support portion 600, and the nozzle cover 720 is no more than this. Restrict moving forward. Accordingly, in the case of bidet cleaning, the drive motor 830 is further rotated forward to move the nozzle body 710 further forward. Thereby, the connection protrusion 723a of the connection piece 723 comes off from the front recessed part 717a. In order to enable the above operation, the driving torque of the driving motor 830 that moves the nozzle in the front-rear direction is larger than the load value required to remove the connecting protrusion 723a.

Next, when the connection protrusion 723a is disengaged from the front recess 717a, the nozzle body 710 and the nozzle cover 720 are separated. At this time, the movement of the nozzle cover 720 is restricted by the front stopper receiving portion 623 of the support portion 600. Therefore, only the nozzle body 710 moves further forward, and the connection protrusion 723a is fitted into the rear recess 717b. When the connection protrusion 723a is completely fitted into the rear recess 717b, the bidet cleaning jet outlet 712 is opposed to the jet opening 724 of the nozzle cover main body 721 as shown in FIG. At this point, the control unit 230 stops driving the drive motor 830. Thereby, the forward movement of the nozzle body 710 is completed. This state is the “bidet cleaning position”.

Next, when the nozzle body 710 reaches the “bidet cleaning position”, the control unit 230 controls the water stop electromagnetic valve 243 and the flow control valve 900 to pass the cleaning water through the bidet cleaning channel 715. And start bidet cleaning. Then, the washing water ejected from the bidet washing ejection port 712 passes without directly contacting the ejection opening 724 of the nozzle cover main body 721 and is ejected upward.

At this time, as shown in FIG. 18, the upper part of the buttocks cleaning jet outlet 711 is covered with the nozzle cover body 721 of the nozzle cover 720. Therefore, it is possible to prevent the sewage generated by the bidet cleaning from being applied directly to the buttocks cleaning spout 711. Thereby, the buttocks washing spout can be kept clean.

Next, when the bidet cleaning is stopped, the control unit 230 controls the water stop electromagnetic valve 243 and the flow control valve 900 to stop the supply of the cleaning water. Then, in the control unit 230, the drive motor 830 rotates in the reverse direction, and the nozzle body 710 and the nozzle cover 720 start moving backward. At this time, the nozzle cover stopper 726 of the nozzle cover 720 comes into contact with a rear stopper receiving portion 624 provided at the rear portion of the support portion 600 during the process of moving backward for storage.

Then, at a position where the nozzle cover stopper 726 contacts the rear stopper receiving portion 624, the control unit 230 stops driving the drive motor 830. Then, the control unit 230 controls the water stop solenoid valve 243 and the flow control valve 900 to supply the cleaning water to the bidet cleaning flow path 715 and eject it from the bidet cleaning jet outlet 712. The washing water ejected from the bidet washing outlet 712 is reflected by the inner peripheral surface of the holding portion 630 of the support portion 600 and flows into the gap 740 between the outer peripheral surface of the nozzle cover body 721 and the inner peripheral surface of the holding portion 630. To do. Thereby, mainly, dirt on the outer peripheral surface of the nozzle cover main body 721 is effectively removed.

Next, the control unit 230 ejects the washing water from the bidet washing outlet 712 and, after a predetermined time has elapsed, controls the water stop solenoid valve 243 and the flow control valve 900 to stop the supply of the washing water.

Then, after the nozzle cleaning is completed, the control unit 230 reversely rotates the drive motor 830 to move the nozzle body 710 further rearward. At this time, the nozzle cover stopper 726 provided on the nozzle cover 720 contacts the rear stopper receiving portion 624 of the support portion 600 and restricts the nozzle cover 720 from moving further rearward. Therefore, when the nozzle body 710 is further moved rearward, the connection protrusion 723a of the connection piece 723 is detached from the rear recess 717b. In order to enable the above-described operation, it is a condition that the driving torque of the driving motor 830 that moves the nozzle cover 720 in the front-rear direction is larger than the load value required to release the connection protrusion 723a.

Next, when the connection protrusion 723a is disengaged from the rear recess 717b, the nozzle body 710 and the nozzle cover 720 are separated. At this time, the movement of the nozzle cover 720 is restricted by the rear stopper receiving portion 624 of the support portion 600. Therefore, only the nozzle body 710 moves further rearward, and the connection protrusion 723a fits into the front recess 717a. When the connecting projection 723a is completely inserted into the front recess 717a, the ejection opening 724 of the nozzle cover body 721 is opposed to the buttocks cleaning ejection port 711 as shown in FIG. At this time, the control unit 230 stops the rotation of the drive motor 830. Thereby, the storing operation of the nozzle body 710 is completed.

This completes the bidet cleaning operation.

Hereinafter, the operation when the nozzle unit 700 is cleaned when the sanitary washing apparatus is not used will be described.

First, the user sets the nozzle cleaning operation with the operation switch 212. As a result, the control unit 230 rotates the drive motor 830 in the forward direction to move the nozzle body 710 and the nozzle cover 720 forward.

When the nozzle body 710 reaches the “butt cleaning position”, the control unit 230 stops the drive motor 830. Further, the control unit 230 controls the water stop solenoid valve 243 and the flow control valve 900 to start the flow of cleaning water through the nozzle cleaning flow path 716.

At this time, the washing water ejected from the nozzle cleaning ejection port 713 is ejected into the nozzle cover 720 and discharged from the drain port 725 of the nozzle cover 720 to the outside of the nozzle cover 720. Thereby, the user can clean the nozzle part 700 and its surroundings with a brush etc. using the washing water discharge | released from the drain outlet 725. FIG.

Next, after the cleaning is completed, when the user performs a stop operation, the control unit 230 controls the water stop solenoid valve 243 and the flow control valve 900 to stop the ejection of the wash water. Then, the control unit 230 drives the drive motor 830 to move the nozzle body 710 to the storage position.

Thus, the cleaning operation of the nozzle unit 700 is completed.

As a result, the operations set by the user perform the hip cleaning, bidet cleaning, and nozzle cleaning cleaning operations.

As described above, according to the present embodiment, the front portion of the nozzle portion 700 is supported by the holding portion 630, and the rear portion is supported by the guide rail 621 via the slider 750. In this state, the driving force applied from the flexible rack 810 is always applied between the front end and the rear end of the support portion 600. Therefore, the frictional resistance generated by the driving force applied from the flexible rack 810 to the slider 750 can be dispersed back and forth to reduce the frictional resistance. Thereby, it is possible to suppress the sliding of the slider 750 due to a large frictional resistance and to smoothly slide the nozzle portion 700. As a result, the positioning accuracy of the cleaning position of the nozzle unit 700 can be improved.

Further, according to the present embodiment, the guide rail 621 and the rack guide 622 are arranged above the nozzle device 500, and the nozzle unit 700 is suspended from the guide rail 621 via the slider 750. At this time, the slider 750 is disposed above the nozzle unit 700. Therefore, one end of the flexible rack 810 that is integrally coupled to the slider 750 is also disposed at the substantially uppermost portion (including the uppermost portion) of the nozzle device 500. Thereby, a trajectory formed with a curvature required for smooth driving of the flexible rack 810 can be formed between the substantially uppermost portion and the lowermost portion (including the lowermost portion) of the nozzle device 500. As a result, the overall height of the nozzle device 500 can be reduced to the minimum necessary in terms of function.

Further, according to the present embodiment, the nozzle unit 700 communicates individually with the three outlets of the butt cleaning outlet 711, the bidet cleaning outlet 712, and the nozzle cleaning outlet 713, and the respective outlets. The three channels of the butt cleaning channel 714, the bidet cleaning channel 715, and the nozzle cleaning channel 716, and the flow control valve 900 that switches the supply of the cleaning water to the channel are integrally provided. Therefore, it is possible to supply cleaning water to the nozzle unit 700 with a single connection tube 612. As a result, it is possible to smoothly move back and forth with one connection tube 612 that serves as resistance for forward / backward drive of the nozzle device 500. As a result, the drive motor 830, the pinion gear 820, the flexible rack 810, and the like related to the drive mechanism can be reduced in size, and the entire nozzle device 500 can be reduced in size and weight.

In addition, according to the present embodiment, the nozzle unit 700 includes three jet outlets, a nozzle main body 710 having three flow paths individually communicating with the jet outlets, and many portions of the nozzle main body 710. A cylindrical nozzle cover 720 for covering, and a connecting portion 730 for connecting the nozzle body 710 and the nozzle cover 720 are provided. Further, the washing water ejected from the buttocks washing ejection port 711 and the bidet washing ejection port 712 is configured to be ejected to the outside through the ejection opening 724 of the nozzle cover 720. Accordingly, the cleaning water can be ejected through one common ejection opening 724 while the nozzle body 710 is provided with a plurality of ejection ports. As a result, the number of places where dirt easily adheres is reduced, and the cleanliness is improved. Furthermore, the appearance of the nozzle device 500 is improved, and a hygienic and clean feeling can be maintained.

In the present embodiment, the flexible rack is molded with TPE (thermoplastic elastomer) made of TPU (thermoplastic polyurethane) or TPEE (polyester elastomer), and PTFE (polytetrafluoroethylene) which is a fluororesin on the outer peripheral surface. The configuration in which the resin is coated has been described as an example, but is not limited thereto. For example, the flexible rack may be molded with a thermoplastic elastomer containing a fluororesin. Thereby, the effect of reducing the frictional resistance of the flexible rack can be obtained.

Further, in this embodiment, in order to reduce the sliding resistance, the inner peripheral surface of the slider is formed in a small size so that only the end portions on both sides are in contact with the upper and lower surfaces of the guide rail, and the central portion is formed with the guide rail. Although an example in which the cross section is recessed so as to generate a gap has been described, the present invention is not limited to this. For example, a plurality of ribs may be formed along the sliding direction on either the inner peripheral surface of the slider or the upper and lower surfaces of the guide rail. Thereby, the contact area of a slider and a guide rail can be reduced, and sliding resistance can be reduced.

As described above, the nozzle device of the present invention has a jet port, a nozzle portion having a flow channel communicating with the jet port, a support portion that supports the nozzle portion so as to advance and retreat, and moves the nozzle portion forward and backward. And a drive unit. The drive unit includes a flexible rack coupled to the nozzle unit, a gear that moves the flexible rack forward and backward, and a motor that drives the gear. The support portion includes a holding portion that surrounds and supports the nozzle portion at the tip portion, a guide rail that guides the forward and backward movement of the nozzle portion behind the holding portion, and a rack guide that guides the forward and backward movement of the flexible rack. And comprising. Furthermore, a sliding part that engages and slides on the guide rail is provided near the rear end of the nozzle part. The flexible rack is coupled to the front portion of the sliding portion, and the driving force applied to the nozzle portion via the flexible rack is always between the front end of the holding portion and the rear end of the sliding portion. You may have the structure which acts.

This causes the sliding part to slide along the guide rail. At this time, the nozzle portion is supported by the holding portion on the front side and supported by the sliding portion on the rear side, and a driving force by the flexible rack is applied to an intermediate portion between the two support points. Therefore, smooth sliding and movement trajectory of the nozzle part can be stabilized. As a result, the nozzle outlet can be moved to an appropriate cleaning position.

Further, the nozzle device of the present invention may have a configuration in which the guide rail and the rack guide are arranged above the nozzle portion, and the nozzle portion is suspended from the guide rail via the sliding portion.

Thus, the sliding portion is disposed above the nozzle portion, and one end of the flexible rack coupled to the sliding portion can be disposed substantially at the uppermost portion of the nozzle device. This makes it possible to form a trajectory formed with a curvature required for smooth driving of the flexible rack between the substantially uppermost part and the substantially lowermost part of the nozzle device. As a result, the height of the entire nozzle device can be formed with the minimum height necessary for the function.

Further, in the nozzle device of the present invention, the nozzle portion includes a plurality of ejection ports, a plurality of flow channels individually communicating with the ejection ports, and a flow control valve that switches supply of cleaning water to the plurality of flow channels. You may comprise and comprise integrally.

As a result, it becomes possible to supply cleaning water to the nozzle portion with a single connection tube, and by making the connection tube that serves as a resistance for the advance / retreat drive of the nozzle device to one minimum, smooth advance / retreat movement is possible. It is possible to reduce the size of motors, gears, flexible racks and the like related to the drive mechanism, and the overall nozzle device can be reduced in size and weight.

In the nozzle device of the present invention, the nozzle portion includes a plurality of jet nozzles, a nozzle main body provided with a plurality of flow paths individually communicating with the jet nozzle, a nozzle cover that covers at least a part of the nozzle main body, and a nozzle A connecting portion for connecting the main body and the nozzle cover; The nozzle cover has an ejection opening, and the nozzle body and the nozzle cover are configured to be slidable with each other so that the ejection openings are opposed to a plurality of ejection ports of the nozzle body. Further, the cleaning water ejected from the ejection port may be ejected to the outside through the ejection opening.

Thereby, even in the case of a nozzle body having a plurality of jet nozzles, the jet opening can be made smaller than the jet nozzle. As a result, the number of places where dirt easily adheres is reduced, and the cleanliness is improved. It also has a clean appearance and is hygienic and clean.

The sanitary washing device of the present invention is mounted on the nozzle device, a washing water supply unit that supplies washing water to the nozzle device, a control unit that controls the nozzle device and the washing water supply unit, and an upper surface of the toilet. And a toilet seat.

This makes it possible to clean the nozzle at an appropriate cleaning position by the stable forward and backward movement of the nozzle device. Further, the size of the entire sanitary washing device can be reduced by downsizing the nozzle device. As a result, a sanitary washing device that is comfortable and easy to use can be realized.

As described above, the nozzle device of the present invention makes it possible to move the nozzle part smoothly to the cleaning position of the jet outlet by stabilizing the smooth sliding and movement locus of the nozzle part. Therefore, it is applicable also to uses, such as other household appliances provided with the sliding mechanism.

DESCRIPTION OF SYMBOLS 100 Sanitary washing apparatus 110

Toilet bowl

110a, 300a Upper surface 200 Main body 210 Sleeve part 211 Operation part 212 Operation switch 213 Indicator light 220 Deodorizing device 230 Control part 240 Washing water supply part 241 Water supply valve 242 Constant flow valve 243 Water stop solenoid valve 244 Relief valve 245 Hot water tank 270 Flow channel 300 Toilet seat 400 Toilet lid 500 Nozzle device 600 Support portion 610 Bottom side 611 Water supply joint 612 Connection tube 620 Inclined portion 621 Guide rail 622 Rack guide 623 Front stopper receiving portion 624 Rear stopper receiving portion 630 Holding portion 640 Vertical side portion 650 Nozzle lid 660 Support portion lid 700 Nozzle portion 710 Nozzle body 711 Bottom cleaning jet (spout)
712 Bidet washing spout (spout)
713 Nozzle cleaning spout (spout)
714 Butt cleaning channel (channel)
715 Bidet washing channel (channel)
716 Nozzle cleaning flow path (flow path)
717 Connection receiving portion 717a Front recessed portion 717b Rear recessed portion 720 Nozzle cover 721 Nozzle cover body 722 Connection member 723 Connection piece 723a Connection projection 724 Ejection opening 725 Drain port 726 Nozzle cover stopper 730 Connection portion 740 Clearance 750 Slider (sliding portion)
750a Both ends 750b Concave portion 751 Engagement piece 800 Drive unit 810 Flexible rack 820 Pinion gear 820a Bearing portion 830 Drive motor 900 Flow control valve 910 Valve body 911 Water supply port 920 Stepping motor

Claims

A nozzle portion having a jet port and a flow path communicating with the jet port;
A support part for supporting the nozzle part so as to be able to advance and retreat;
A drive part for moving the nozzle part forward and backward, and
The drive unit includes a flexible rack coupled to the nozzle unit, a gear that moves the flexible rack forward and backward, and a motor that drives the gear,
The support portion includes a holding portion that surrounds and supports the nozzle portion at a distal end portion, a guide rail that guides the forward and backward movement of the nozzle portion behind the holding portion, and the forward and backward movement of the flexible rack. A rack guide for guiding
The nozzle portion includes a sliding portion that engages and slides on the guide rail,
The flexible rack is coupled to the front portion of the sliding portion, and the driving force applied to the nozzle portion via the flexible rack is such that the front end of the holding portion and the rear end of the sliding portion are Nozzle device having a configuration acting in the middle.
The nozzle device according to claim 1, wherein the guide rail and the rack guide are disposed above the nozzle portion, and the nozzle portion is suspended from the guide rail via the sliding portion.
The nozzle part is
A plurality of the spouts;
A plurality of flow paths individually communicating with the jet port;
The nozzle device according to claim 1, wherein the nozzle device is configured integrally with a flow control valve that switches supply of cleaning water to the plurality of flow paths.
The nozzle part is
A plurality of the jet nozzles, and a nozzle body including a plurality of flow paths individually communicating with the jet nozzles;
A nozzle cover covering at least a part of the nozzle body;
A connecting portion for connecting the nozzle body and the nozzle cover;
The nozzle cover has an ejection opening, and the nozzle body and the nozzle cover are configured to be slidable so that the ejection openings are opposed to the plurality of ejection openings of the nozzle body. The nozzle device according to claim 1, wherein the washed water is ejected to the outside through the ejection opening.
A nozzle device according to claim 1;
A cleaning water supply unit for supplying cleaning water to the nozzle device;
A control unit for controlling the nozzle device and the washing water supply unit;
A toilet seat placed on the upper surface of the toilet;
Sanitary washing device equipped with.