JP5338020B2 - Nozzle device and sanitary washing device using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve the downsizing of a device and a reduction in cost by realizing a nozzle device, equipped with a plurality of washing functions, through the use of a simple constitution. <P>SOLUTION: This nozzle device comprises a nozzle body 22, a nozzle cover 23 with an exhaust opening 31, which covers the nozzle body 22, a connecting means 24 for connecting the nozzle body 22 and the nozzle cover 23 together, a nozzle guide 19, and a driving means 43. The driving means 43 enables the nozzle body 22 to slide between a storage position and a plurality of washing positions. The nozzle cover 23 is interlocked with the nozzle body 22 between the storage position and at least one washing position via the connecting means, so that only the nozzle body 22 can be driven by the driving means 43. Thus, since the single driving means 43 enables two driving objects to be driven to optimum positions, respectively, the downsizing of the device and the reduction of the cost can be achieved. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a drive mechanism of a nozzle device for cleaning a local part of a human body.

Conventionally, this type of nozzle device has a first nozzle provided with a flow passage communicating with a jet outlet and a jet outlet, and a shape following the outer peripheral shape of the first nozzle so as to accommodate the first nozzle. A second nozzle provided with a flow passage communicating with the spout and the spout, a nozzle drive unit for driving the first nozzle, a guide pin provided at the rear end of the first nozzle, and a second nozzle rear end A heart cam groove into which the guide pin is inserted is provided in the portion, and the first nozzle is moved alone by engaging or releasing the guide pin and the heart cam groove, or the first nozzle and the second nozzle. It is the structure which can be moved integrally. The engagement and release of the guide pin and the heart cam groove can be selected according to the movement direction from the origin position that is the first nozzle storage position. When the first nozzle moves directly forward from the origin position, the first nozzle is moved alone when moving forward from the moved one Dan backward from the home position is the first nozzle and the second nozzle moving in unison. Both the first nozzle and the second nozzle advance and retreat between the standby position and one cleaning position (see, for example, Patent Document 1).

FIG. 18 shows a conventional nozzle device described in Patent Document 1. In FIG. As shown in FIG. 18, a guide pin 2 is installed at the rear end portion of the first nozzle 1. It is installed so as to cover the cylindrical second nozzle 3 , and a heart cam groove 4 is formed at the rear end of the second nozzle. FIG. 19 shows the details of the guide pin 2 and the heart cam groove 4, but the guide pin 2 is initially arranged at the origin position 5, and when the first nozzle 1 moves directly forward, the guide pin 2 The second nozzle does not move because the heart cam groove 4 advances along the straight line portion 6. On the other hand, when the first nozzle 1 moves rearward from the origin position 5, the guide pin 2 advances the heart portion 7 of the heart cam groove 4 and reaches the engagement point 8. Thereafter, the first nozzle and the second nozzle are integrally moved to the cleaning position.
JP 2005-320852 A

However, in the above-described conventional configuration, the first nozzle and the second nozzle move between the same storage position and the cleaning position, and ensure the optimum cleaning position for each of the hip cleaning and the bidet cleaning. The problem was that one of the cleaning functions had to be sacrificed. Further, a first nozzle engagement and release of the switching of the second nozzle should always be returned to the first nozzle home position, the first Dan Even in a bidet for example following the bidet 1 It was necessary to return the nozzle to the origin, and there was a problem that switching took time.

  The present invention solves the above-described conventional problems, and realizes a plurality of cleaning nozzles having a plurality of cleaning functions at an optimum position of each cleaning nozzle with a simple configuration by one driving means. The purpose is to reduce the size and cost of the product.

In order to solve the above-described conventional problems, a nozzle device of the present invention includes a nozzle body having a plurality of ejection ports and a flow path, a nozzle cover that covers the nozzle body and has a ejection opening corresponding to the ejection port of the nozzle body. The nozzle body includes a connecting means for connecting the nozzle body and the nozzle cover, a nozzle guide, and a driving means, the nozzle body being slidable between the storage position and a plurality of cleaning positions by the driving means, cover are those between the at least one cleaning position and the storage position and configured to move, driven by the nozzle body through said connecting means.

Thus, by driving only the nozzle body with the driving means, the nozzle body and the nozzle cover are connected and slid, and only a part of the nozzle body can be slid independently in a certain range. Since the two driving objects can be driven to their optimum positions by the driving means, the apparatus can be reduced in size and cost.

  Since the nozzle device of the present invention can drive two driving objects to their optimum positions with one driving means, the device can be reduced in size and cost.

According to a first aspect of the present invention, there is provided a nozzle body having a plurality of outlets for ejecting cleaning water and a flow path for supplying cleaning water to the outlet, and covering at least a part of the nozzle body and at least one of the nozzle bodies. A cylindrical nozzle cover having a jet opening corresponding to a jet port, a connecting means for connecting the nozzle body and the nozzle cover, a nozzle guide for storing the nozzle body, the nozzle cover and the connecting means, and the nozzle Drive means for driving advancement and retraction of the main body, wherein the nozzle main body stores a substantially entire nozzle main body in the nozzle guide, and a plurality of cleaning positions in which a part of the nozzle main body advances from the nozzle guide. and slidable by the drive means between said nozzle cover through the connecting means between at least one of the cleaning position and the storage position nozzles Move, driven by the body, by only the nozzle body to at least one of the cleaning position moves, by driving only the driving means nozzle body, together with the slide connecting the nozzle body and the nozzle cover In a certain range, only the nozzle body can be slid independently, and two driving objects can be driven to their optimum positions by one driving means, so that the apparatus can be reduced in size and cost. Can do.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, at least one of the cleaning positions includes a protruding portion in which a part of the nozzle body protrudes from the nozzle cover. The cleaning performed at the position where the main body protrudes can be easily accommodated to a complicated nozzle shape or special injection form without being affected by the nozzle cover by directly jetting cleaning water from the nozzle main body.

  According to a third invention, in the first or second invention, the plurality of jet nozzles are a hip cleaning jet nozzle for cleaning the hips, a bidet cleaning jet nozzle for cleaning a female part, the nozzle body, and the nozzle By using a nozzle cleaning nozzle for cleaning the cover, the nozzle body and nozzle cover having a plurality of nozzles with different functions and purposes can be slid and moved to an optimal position with a single driving means. It is possible to provide a small and low-cost cleaning nozzle having various functions.

  In a fourth aspect of the present invention, in particular, in any one of the first to third aspects, the plurality of cleaning positions are an butt cleaning position and a bidet cleaning position advanced from the butt cleaning position, and the nozzle cover is stored in the storage area. Since the nozzle body is moved by being pulled by the nozzle body between the position and the buttocks cleaning position, the nozzle body is cleaned while covered with the nozzle body at the buttocks cleaning position. It becomes difficult for washing water and contaminants to be directly applied to the nozzle body, and the nozzle body can be kept clean and hygienic.

According to a fifth aspect of the invention, in particular, the connection means according to any one of the first to fourth aspects includes a connection member provided on one of the nozzle body and the nozzle cover, and a connection receiving portion provided on the other side. The member and the connection receiving portion are connected by an elastic force, and the connection of the connection means and the connection receiving portion can be released by the driving force of the drive means of the nozzle body, thereby connecting and releasing the connection means. Is possible by resisting the elastic force of the connection receiving part , so it can be easily done only by setting the driving force, and the structure is simple, so it is compact and low cost, and has high durability. And maintainability.

According to a sixth aspect of the invention, in particular, the connection member and the connection receiving portion of the fifth aspect of the invention are configured such that the relative positions of the nozzle body and the nozzle cover can be connected at two places different in the sliding direction. The nozzle body can be connected to the nozzle cover in a state where the main body is entirely covered with the nozzle cover, and in a state where the protruding portion of the nozzle body protrudes from the nozzle cover. Since it can be interlocked, a variety of washing water can be ejected.

  According to a seventh aspect of the invention, in particular, the drive means of any one of the first to sixth aspects includes a drive motor, a pinion gear, and a rack provided on the nozzle body, and the rotation of the drive motor is controlled by the pinion gear. By sliding the nozzle body through the rack, the rotation of the drive motor is transmitted to the nozzle body via the gear to drive the nozzle body, and therefore there is little slippage and hysteresis in the movement of the nozzle body. Position control is possible.

According to an eighth aspect of the invention, in particular, the drive means of the seventh aspect of the invention comprises rotation detection means for detecting the rotation speed of the drive motor, and the movement of the nozzle body is controlled by controlling the rotation speed of the drive motor. By adopting a configuration for controlling the distance, the number of rotations of the drive motor is detected, and the nozzle body is moved by a predetermined distance by controlling to the preset number of rotations, so that the position control of the nozzle body is accurately performed. it is possible.

A ninth invention is a nozzle device according to any one of the first to eighth inventions, a cleaning water supply means for supplying cleaning water to the nozzle device, and a control means for controlling the nozzle device and the cleaning water supply means. And a sanitary washing device equipped with a toilet seat placed on the upper surface of the toilet bowl, the nozzle body and nozzle cover can be driven by a single drive motor, and washing water can be ejected in various states. enables optimal washing to be cleaned, a small, as possible out to provide a user-friendly sanitary washing device.

  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)
FIG. 1 is a perspective view showing a state in which a sanitary washing device using a nozzle device according to a first embodiment of the present invention is installed in a toilet, and FIG. 2 is a perspective view showing the overall appearance of the nozzle device. 3 is a perspective view of the entire nozzle device with the upper case removed, FIG. 4 is a perspective view of the nozzle device at the buttocks cleaning position, and FIG. 5 is a nozzle device at the bidet cleaning position. A perspective view is shown, and FIG. 6 shows a detailed sectional view of the tip of the nozzle device.

  As shown in FIG. 1, a toilet seat 13 and a toilet lid 14 are pivotally supported on a main body 12 disposed at a rear portion of a sanitary washing device 11 installed on an upper surface of a toilet bowl 10. The nozzle device 15 of the first embodiment is installed, and a cleaning water supply means (not shown) for supplying cleaning water to the nozzle device 15 and a nozzle device 15 and the cleaning water supply means are provided inside the main body 12. Control means (not shown) and the like for controlling are arranged.

As shown in FIG. 2, a casing 16 molded from a resin material has a configuration in which an upper case 17 and a lower case 18 that can be separated vertically are combined, and a substantially cylindrical nozzle guide 19 is formed at the center of the casing 16. A tip opening 20 is provided at one end of the nozzle guide 19. A cylindrical nozzle unit 21 is slidably installed in the nozzle guide 19, and as shown in FIG. 2, the storage position in which the nozzle unit 21 is accommodated in the nozzle guide 19, and as shown in FIG. The nozzle unit 21 can move back and forth between the cleaning positions protruding from the tip opening 20.
The nozzle unit 21 includes a substantially cylindrical nozzle body 22, a substantially cylindrical nozzle cover 23 that accommodates the nozzle body, and a connecting means 24 that pulls the nozzle cover 23 with the nozzle body 22.

  The original part of the nozzle body 22 is composed of a large diameter part 25 having a large outer diameter and the tip part is composed of a bidet nozzle part 26 having a small outer diameter. The central positions of the large diameter part 25 and the bidet nozzle part 26 are different, and the bidet nozzle part 26 is large. It is disposed below the diameter portion 25. The large diameter portion 25 has an outer diameter slightly smaller than the inner diameter of the nozzle cover 23, and has a dimensional relationship that allows the nozzle body 22 and the nozzle cover 23 to slide smoothly with respect to each other. The nozzle body 22 is formed of a resin material, but the bidet nozzle portion 26 is entirely covered with a stainless steel cover 27.

  7 shows an AA section of FIG. 6, and FIG. 8 shows a BB section. As shown in FIG. 7, three channels of a buttocks cleaning channel 28, a bidet cleaning channel 29, and a nozzle cleaning channel 30 are formed inside the nozzle body 22.

  The buttocks cleaning channel 28 is arranged from the original portion to the vicinity of the tip of the large-diameter portion 25, and the tip thereof is the buttocks-cleaning outlet 31 provided on the upper surface of the large-diameter portion 25 as shown in FIG. It is connected to. The bidet cleaning flow path 29 is disposed from the original portion to the substantially tip portion of the bidet nozzle portion 26, and the tip is connected to a bidet cleaning jet port 32 provided on the upper surface of the bidet nozzle portion 26. The nozzle cleaning flow path 30 is arranged from the original portion to the substantially tip portion of the large diameter portion 25, and as shown in FIG. 8, the tip is a nozzle cleaning jet port provided below and on the outer surface of the large diameter portion 25. 33 is connected.

  The buttocks cleaning jet 31 has one opening, and the bidet cleaning jet 32 includes a plurality of openings. The nozzle cleaning jet 33 includes an internal cleaning jet 33 a provided downward and an external cleaning jet 33 b provided above the side surface. The jet direction of the two nozzle cleaning jets 33 is the diameter of the nozzle body 22. The direction is set to be offset with respect to the direction.

Washing water supply ports 28a, 29a, 30a for supplying cleaning water are installed in the original portions of the buttocks cleaning channel 28, the bidet cleaning channel 29, and the nozzle cleaning channel 30, respectively. The water supply means communicates with a hose (not shown). Further, a tooth-shaped rack 34 is formed on the lower surface of the nozzle body 22 over substantially the entire length.

  The nozzle cover 23 is a thin stainless steel plate formed in a cylindrical shape. The front end surface is a closed surface, the rear end surface is an open surface, and the nozzle body can be inserted from the rear end surface. A bidet nozzle inlet / outlet 35 through which the bidet nozzle portion 26 of the nozzle main body 22 can pass is provided on the distal end surface, and only the bidet nozzle portion 26 of the nozzle main body 22 can be projected from the bidet nozzle inlet / outlet 35. The part 26 is movable between a state in which substantially the whole protrudes from the bidet nozzle inlet / outlet port 35 of the nozzle cover 23 and a state in which it is accommodated.

  On the upper surface of the nozzle cover 23, with the nozzle body 22 housed in the nozzle cover 23, the butt cleaning opening 36 and the nozzle are respectively located at positions corresponding to the butt cleaning outlet 31 and the nozzle cleaning outlet 33 of the nozzle body 22. A cleaning opening 37 is provided, and the cleaning water ejected from the buttocks cleaning outlet 31 and the nozzle cleaning outlet 33 passes through and is jetted without directly contacting the buttocks cleaning opening 36 and the nozzle cleaning opening 37.

  A slit-like rack opening 38 is provided at a position corresponding to the rack 34 of the nozzle body 22 at the rear of the lower surface of the nozzle cover 23, and a drain port 39 for discharging cleaning water in the nozzle cover 23 is provided at the front of the lower surface. It is.

  The nozzle guide 19 of the casing 16 that accommodates the nozzle unit 21 including the nozzle body 22, the nozzle cover 23, and the connecting means 24 has an inner diameter slightly larger at the rear portion than the outer diameter of the nozzle cover 23. The nozzle guide 19 is dimensionally slidable.

  A cleaning enlarged portion 40 having a large inner diameter is installed in the vicinity of the tip opening 20 of the nozzle guide 19, and the cleaning enlarged portion 40 has sufficient nozzle cleaning outlet 33 and buttocks cleaning outlet 31 at the storage position of the nozzle unit 21. The depth to cover. The inner diameter of the cleaning enlarged portion 40 is such that a slight gap is formed over the entire outer surface of the nozzle cover 23 and the cleaning water for cleaning the nozzle can flow through the gap. Further, a drain port 41 for discharging cleaning water is provided at the lower part of the cleaning enlargement unit 40.

  Further, a nozzle shutter 42 pivotally supported at the upper portion of the tip opening 20 of the nozzle guide 19 and pivotable up and down is provided, and the tip opening 20 can be closed while the nozzle unit 21 is housed in the nozzle guide 19. When the nozzle unit 21 advances to the cleaning position, the nozzle shutter 42 opens upward by being pushed forward at the tip of the nozzle unit 21, and when the nozzle unit 21 is stored at the storage position, the nozzle shutter 42 rotates downward by its own weight. It is configured to move and close.

  9, 10, and 11 are cross-sectional views illustrating the driving state of the nozzle device, FIG. 9 illustrates the storage state, FIG. 10 illustrates the buttocks cleaning state, and FIG. 11 illustrates the bidet cleaning state. is there.

As shown in the figure, nozzle driving means 43 is installed in the lower part of the casing 16. The nozzle drive means 43 includes a drive motor 44, a worm gear (not shown), a transmission gear 45, and a pinion gear 46, and the pinion gear 46 is mounted on the lower surface of the nozzle body 22 through the rack opening 38 of the nozzle cover 23. It is installed at the position where it meshes with. The rotation of the drive motor 44 is transmitted to the pinion gear 46 at a reduced rotational speed via the worm gear and the transmission gear 45. The pinion gear 46 rotates, so that the nozzle body 22 having the rack 34 can slide. ing. The drive motor 44 is connected to control means (not shown), and the operation is controlled by the control means. A rotation detection sensor 47 that detects the number of rotations of the drive motor 44 is provided at the rear of the drive motor 44.

  12 to 17 are cross-sectional views showing details of connecting means for pulling and moving the nozzle main body 22 and the nozzle cover 23.

  As shown in the figure, the nozzle body 22 and the nozzle cover 23 are provided with connecting means 24 for pulling and moving the nozzle cover 23 by moving the nozzle body 22. The connection means 24 includes a connection receiving portion 48 installed on the side surface of the nozzle cover 23 and a connection member 49 installed at the rear end portion of the nozzle body 22.

  As shown in FIGS. 16 and 17, the connection receiving portion 48 molded with a resin material is installed on one side surface of the nozzle cover 23 in parallel with the nozzle cover 23. A front concave portion 48a and a rear concave portion 48b are provided at two positions on the lower surface of the connection receiving portion 48 in the front-rear direction, and the interval between the front concave portion 48a and the rear concave portion 48b is determined according to the bidet nozzle portion 26 of the nozzle body 22. The dimension is approximately the same as the length of.

  The connecting member 49 is provided on the side surface of the rear end portion of the nozzle body 22. The connecting member main body 49a molded integrally with the nozzle main body is provided with a connecting piece 50 facing the connecting receiving portion 48. The connecting piece 50 is formed of an elastic metal material, and one end is fixed to the connecting member 49. The connection protrusion 50a is formed at the tip in a cantilever structure, and the connection protrusion 50a is shaped to fit into the front recess 48a and the rear recess 48b of the connection receiver 48. When the connecting protrusion 50a is fitted into the front recessed part 48a or the rear recessed part 48b, the connecting member 49 and the connection receiving part 48 are connected, and the nozzle body 22 and the nozzle cover 23 can be interlocked.

  A positioning projection 51 is provided on the opposite side surface of the nozzle cover 23 where the connection receiving portion 48 is provided. The positioning projection 51 contacts the front stopper 52 and the rear stopper 53 provided on the side of the nozzle guide 19 of the casing 16. This is a means for regulating the sliding range of the nozzle cover 23 by contact.

  About the nozzle device comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

First, in the storage state where the nozzle shown in FIG. 2 is not used, the nozzle body 22 is located at the rearmost part of the nozzle guide 19 and the nozzle cover 23 is also located at the rearmost part of the sliding range. The positioning protrusion 51 is in contact with a rear stopper 53 provided on the side of the nozzle guide 19, and both the nozzle body 22 and the nozzle cover 23 are disposed at the most retracted position. At this time, the connection protrusion 50a of the connection piece 50 is in a state of being fitted into the rear recess 48b of the connection receiving portion 48 as shown in FIG.

  When cleaning is started from the housed state, first, when the user operates the operation means, the control means starts control, and the rotation of the drive motor 44 is transmitted to the pinion gear 46, whereby the pinion gear 46 and The nozzle main body 22 having the meshed rack 34 is moved rearward, but the nozzle main body 22 cannot move further rearward, so that the position in the front-rear direction does not change. With this position as the origin, the subsequent position of the nozzle body 22 can be controlled while detecting the amount of movement of the nozzle body 22 by detecting the rotation speed of the drive motor 44 with the rotation detection sensor 47.

  Next, the drive motor 44 is reversely rotated to move the nozzle body 22 forward. At this time, the nozzle cover 23 moves forward in a state of being pulled and integrated with the nozzle body 22 by maintaining the state in which the connection protrusion 50a of the connection piece 50 is fitted in the rear recessed portion 48b of the connection receiving portion 48.

  When the user's operation is a buttocks cleaning operation, as shown in FIGS. 4, 10, and 13, the nozzle body 22 and the nozzle cover 23 moved forward follow the control sequence set in advance. When the rotational speed of the drive motor 44 from the origin state reaches a set value, the drive motor 44 stops. At this time, the positioning projection 51 provided on the nozzle cover 23 is in a state of being stopped just before contacting the front stopper 52 provided on the side of the nozzle guide 19, and this position becomes the standard position for butt washing.

  In this state, the control means controls the washing water supply means, and the butt washing is started by passing water through the butt washing flow path 28. The switching of the water flow path and the adjustment of the flow rate are performed by a flow rate adjusting valve provided in the washing water supply means. At this time, the upper part of the buttocks washing outlet 31 and the bidet washing outlet 32 is covered with the nozzle cover 23, and the sewage generated by the buttocks washing is not directly applied. The cleaning outlet 32 is kept clean.

  In addition, when the sealing performance of the flow rate control valve is insufficient, the flow rate switching between the buttocks cleaning flow path 28 and the bidet cleaning flow path 29 is not performed completely, and a minute amount of water is discharged from the bidet cleaning jet outlet 32 during the buttocks cleaning. However, since the upper part of the bidet washing outlet 32 is covered with the nozzle cover 23, there is no possibility that the water will be ejected outside the nozzle.

  When the drive motor 44 is driven to rotate forward and reverse alternately while the buttocks are being washed, the nozzle body 22 and the nozzle cover 23 are swung back and forth with respect to the standard position, and the washing water Can wash a wider area of the human body simultaneously.

  When the hip cleaning stop is operated, the drive motor 44 rotates in the reverse direction, the nozzle body 22 and the nozzle cover 23 move rearward, and return to the original storage state.

  Next, when bidet cleaning is selected, after confirming the origin position of the nozzle body 22 in the same manner as the butt cleaning, the drive motor 44 rotates to move forward, and the nozzle body 22 and the nozzle cover 23 move forward. This is the same as in the case of buttocks cleaning, but in the case of bidet cleaning, the nozzle body 22 is moved further forward beyond the buttocks cleaning position.

  At this time, as shown in FIG. 14, the positioning projection 51 provided on the nozzle cover 23 abuts on the front stopper 52 provided on the side of the nozzle guide 19 and the nozzle cover 23 cannot move any further. When the nozzle body 22 is further moved forward, the connection protrusion 50a of the connection piece 50 is detached from the rear recess 48b. In order to enable such an operation, it is a condition that the driving torque of the driving motor 44 that moves the nozzle in the front-rear direction is larger than the load value required to remove the connecting protrusion 50a.

  The nozzle main body 22 and the nozzle cover 23 are separated from each other by the disconnection of the connecting protrusion 50a from the rear concave portion 48b, and only the nozzle main body 22 is forward of the nozzle cover 23 whose movement is restricted by the front stopper 52. The bidet nozzle portion 26 of the nozzle body 22 starts to advance from the bidet nozzle inlet / outlet port 35 provided on the tip surface of the nozzle cover 23.

  When the nozzle body 22 is further moved forward, the connection protrusion 50a is fitted into the front recessed portion 48a. When the connecting protrusion 50a is completely fitted into the front recessed portion 48a, the bidet nozzle portion 26 of the nozzle body 22 is completely advanced from the bidet nozzle entrance 35 as shown in FIG. At this time, position control based on the number of rotations of the drive motor 44 is performed in advance by a control sequence so that the forward movement of the nozzle body 22 is completed.

The drive motor 44 is moved backward to a standard position for bidet cleaning when the drive motor 44 is slightly rotated in the reverse direction with the connection protrusion 50a fitted in the front recess 48a in this manner. Stop. This state is the standard position for bidet cleaning shown in FIG.

  When the nozzle body 22 reaches the standard position for bidet washing, the control means controls the washing water supply means to start water flow through the bidet washing flow path 29, thereby starting bidet washing. The switching of the water flow path and the adjustment of the flow rate are performed by a flow rate adjustment valve of the washing water supply means. At this time, the upper part of the buttocks washing spout 31 is covered with the nozzle cover 23, and the sewage generated by the bidet washing does not directly reach the buttocks washing spout 31. To be kept. In addition, when the sealing performance of the flow rate control valve is insufficient, the flow rate switching between the buttocks cleaning flow path 28 and the bidet cleaning flow path 29 is not performed completely, and a minute amount of water is discharged from the buttocks cleaning jet 31 even during bidet cleaning. However, since the upper part of the buttocks cleaning jet 31 is covered with the nozzle cover 23, there is no possibility that the water is jetted outside the nozzle.

  When the drive motor 44 is driven so as to alternately repeat forward rotation and reverse rotation while performing bidet cleaning, the nozzle body 22 and the nozzle cover 23 are swung back and forth with respect to the standard position, and the cleaning water A wider area of the human body can be cleaned simultaneously.

  When the bidet cleaning is stopped, the drive motor 44 rotates in the reverse direction, and the nozzle body 22 and the nozzle cover 23 start moving backward. In the middle of moving backward for storage, the positioning projection 51 provided on the nozzle cover 23 abuts on the rear stopper 53 provided on the side of the nozzle guide, and the nozzle cover 23 cannot move any further. When the nozzle body 22 is further moved rearward, the connection protrusion 50a of the connection piece 50 is detached from the front recess 48a. In order to enable such an operation, it is a condition that the driving torque of the driving motor 44 that moves the nozzle body 22 in the front-rear direction is larger than the load value required for releasing the connection protrusion 50a.

  The nozzle main body 22 and the nozzle cover 23 are separated from each other by the disconnection of the connecting protrusion 50a from the front recessed portion 48a, and only the nozzle main body 22 is rearward of the nozzle cover 23 whose movement is restricted by the rear stopper 53. As a result, the bidet nozzle portion 26 of the nozzle body 22 starts to be housed in the bidet nozzle inlet / outlet port 35 provided on the front end surface of the nozzle cover 23. When the nozzle body 22 is further moved rearward, the connection protrusion 50a gets stuck in the rear recess 48b. When the connecting protrusion 50a is completely inserted into the rear recessed portion 48b, the bidet nozzle portion 26 of the nozzle body 22 is completely stored in the bidet nozzle inlet / outlet 35. At this point, the nozzle body 22 contacts the rear end of the nozzle guide 19 and cannot move any further backward. The rotation of the drive motor 44 is stopped by position control based on the number of rotations of the drive motor 44 based on a preset control sequence.

  When the butt cleaning and the bidet cleaning are completed and the nozzle body 22 is stopped at the storage position, the control means starts the nozzle cleaning control. The control means controls the washing water supply means, and the nozzle washing is started by starting water flow through the nozzle washing flow path 30. The switching of the water flow path and the adjustment of the flow rate are performed by a flow rate adjustment valve of the washing water supply means.

  When water passes through the nozzle cleaning flow path 30, cleaning water is ejected from the two nozzle cleaning ejection ports 33 provided at the front end portion of the large diameter portion 25 of the nozzle body 22. The cleaning water sprayed from the external cleaning nozzle 33 b provided on the outer surface is sprayed to the outside of the nozzle cover 23 through the nozzle cleaning opening 37 provided in the nozzle cover 23, and the cleaning enlarged portion of the nozzle guide 19 covering the nozzle cover 23. The outer peripheral wall of the nozzle cover 23 and the buttocks cleaning outlet 31 are cleaned with cleaning water that hits the inner wall 40 and rebounds. Further, the washing water ejected from the internal washing outlet 33a provided downward flows to the side of the bidet nozzle portion 26 of the nozzle body 22 and cleans the surface of the bidet nozzle portion 26 and the bidet washing outlet 32.

  At this time, as shown in FIG. 8, since the internal cleaning outlet 33a and the external cleaning and nozzle cleaning opening 37 are set in a direction offset from the diameter direction of the nozzle body 22, the sprayed cleaning water is discharged from the nozzle guide 19 and the nozzle. It becomes a swirl flow that swirls and circulates in the circumferential direction of the cover 23, and dirt on the nozzle body 22 and the nozzle cover 23 can be effectively removed. The washed water after washing is discharged from drain ports 39 and 41 provided at the lower part of the nozzle cover 23 and the nozzle guide 19.

  As described above, in the present embodiment, a nozzle body including a butt cleaning spout for ejecting cleaning water, a bidet cleaning spout, a nozzle cleaning spout, and a flow path for supplying cleaning water to each spout And a cylindrical nozzle cover that covers the nozzle body and has an ejection opening corresponding to the butt cleaning ejection port, a connecting means for coupling the nozzle body and the nozzle cover, a nozzle guide for housing the nozzle body and the nozzle cover, By providing a drive means for driving the nozzle body to advance and retreat, the nozzle and the flow path are integrated in the nozzle body, and the nozzle cover can be made simple, so the entire nozzle device is small. It can be set as a simple structure.

  In addition, by sliding the nozzle body and the nozzle cover relative to each other, by aligning the corresponding jet outlet and the jet opening, the washing water from the butt washing jet outlet is jetted through the jet opening, When the washing water is jetted, the nozzle body, particularly the vicinity of the bidet washing jet outlet and the buttocks washing jet outlet, is covered with a nozzle cover, so that the nozzle body is not contaminated by washing water that is dirty by washing, and is hygienic.

  In addition, when cleaning the bidet, the cleaning nozzle is ejected with the bidet nozzle projecting from the front end surface of the nozzle cover, so that the cleaning water can be sprayed close to the cleaning target, and a delicate spray configuration is desired. Can be carried out directly from the bidet washing outlet, so that an optimum injection form can be obtained.

  Further, since the nozzle cover is interlocked with the nozzle main body via the connecting means between the storage position and the buttocks cleaning position, only the nozzle main body is driven by the driving means, and both the nozzle main body and the nozzle cover are interlocked and slid. In addition to being able to move to the bidet cleaning position, only the nozzle body can be slid independently, and two driving objects can be driven to their optimum positions with one driving means, thereby reducing the size and cost of the apparatus. Can be achieved.

  In addition, the cleaning water sprayed from the outer cleaning outlet of the nozzle cleaning outlet provided in the nozzle body is jetted to the cleaning enlarged portion of the nozzle guide through the nozzle cleaning opening and reflected by the nozzle guide, and the outer surface of the nozzle cover and the nozzle guide The cleaning water sprayed from the internal cleaning outlet is reflected by the nozzle cover and can mainly clean the outer surface of the bidet nozzle part and the inner surface of the nozzle cover. The self-cleaning mechanism for the nozzle body and nozzle cover contaminated by the above can be realized with a small and simple configuration, and a hygienic nozzle device can be provided.

  In this embodiment, the nozzle drive means employs a transmission mechanism via a gear including a drive motor, a worm gear, a transmission gear, and a pinion gear. However, the present invention is not limited to this. A mechanism may be used.

  Further, in the present embodiment, the member that covers the nozzle cover and the bidet nozzle portion is formed of stainless steel, but these materials are not limited to this, other metal materials having corrosion resistance, inorganic materials such as ceramics, or Cleanliness can be further improved by using resin materials, particularly those obtained by adding antibacterial or sterilizing performance or water repellency to these materials.

  In the present embodiment, the connecting piece of the connecting means is formed of a metal material having elasticity. However, the connecting piece is not limited to this, and may be a resin material having elasticity. The members can be molded integrally and can be manufactured at low cost.

  As described above, the nozzle device according to the present invention can drive a plurality of objects to be driven by a single driving means, so that it is possible to reduce the size and cost of the device. It can be applied to any other cleaning device.

The perspective view of the sanitary washing apparatus using the nozzle apparatus in Embodiment 1 of this invention The perspective view which shows the accommodation state of the nozzle apparatus in Embodiment 1 of this invention. The perspective view which removed the upper case of the nozzle apparatus in Embodiment 1 of this invention The perspective view which shows the buttocks washing | cleaning state of the nozzle apparatus in Embodiment 1 of this invention The perspective view which shows the bidet cleaning state of the nozzle apparatus in Embodiment 1 of this invention. Sectional drawing of the principal part of the nozzle unit of the nozzle apparatus in Embodiment 1 of this invention. Sectional drawing of the principal part of the nozzle unit of the nozzle apparatus in Embodiment 1 of this invention. Sectional drawing of the principal part of the nozzle unit of the nozzle apparatus in Embodiment 1 of this invention. The longitudinal cross-sectional view which shows the accommodation state of the nozzle apparatus in Embodiment 1 of this invention. The longitudinal cross-sectional view which shows the buttocks washing | cleaning state of the nozzle apparatus in Embodiment 1 of this invention The longitudinal cross-sectional view which shows the bidet cleaning state of the nozzle apparatus in Embodiment 1 of this invention The cross-sectional view which shows the accommodation state of the nozzle apparatus in Embodiment 1 of this invention The cross-sectional view which shows the buttocks washing | cleaning state of the nozzle apparatus in Embodiment 1 of this invention The cross-sectional view which shows the forefront position state of the nozzle apparatus in Embodiment 1 of this invention The perspective view which shows the bidet cleaning state of the nozzle apparatus in Embodiment 1 of this invention Sectional drawing which shows the connection means of the nozzle apparatus in Embodiment 1 of this invention Sectional drawing which shows the connection means of the nozzle apparatus in Embodiment 1 of this invention Perspective view of a conventional nozzle device Main part perspective view of a conventional nozzle device

DESCRIPTION OF SYMBOLS 10 Toilet 13 Toilet seat 15 Nozzle device 22 Nozzle body 23 Nozzle cover 24 Connection means 25 Large diameter part 26 Bide nozzle part (protrusion part)
28 Butt washing channel (channel)
29 Bidet cleaning channel (channel)
30 Nozzle cleaning flow path (flow path)
31 Butt washing spout (spout)
32 Bidet washing spout (spout)
33 Nozzle cleaning spout (spout)
34 rack 36 ass washing opening (spout opening)
37 Nozzle cleaning opening (spout opening)
43 Nozzle driving means (driving means)
44 drive motor 46 pinion gear 47 rotation detection sensor 48 connection receiving part 49 connection member 50 connection piece

Claims (9)

A nozzle body having a plurality of jets for jetting cleaning water and a flow path for supplying cleaning water to the jets, and jets covering at least a part of the nozzle body and corresponding to at least one jet of the nozzle body A cylindrical nozzle cover having an opening; a connecting means for connecting the nozzle body and the nozzle cover; a nozzle guide for storing the nozzle body, the nozzle cover and the connecting means; and driving the nozzle body to advance and retreat. Drive means, wherein the nozzle body drives between a storage position where substantially the entire nozzle body is housed in the nozzle guide and a plurality of cleaning positions where a part of the nozzle body has advanced from the nozzle guide. and slidable by means of the nozzle cover牽between at least one of the cleaning position and the storage position in the nozzle body through said connecting means Has been moved, the nozzle device only the nozzle body is moved to at least one of said cleaning position. 2. The nozzle device according to claim 1, wherein at least one of the cleaning positions, the nozzle body includes a protruding portion that protrudes from the nozzle cover. The plurality of spouts are provided with a butt cleaning spout for cleaning a butt, a bidet cleaning spout for cleaning a female part, and a nozzle cleaning spout for cleaning the nozzle body and the nozzle cover. Nozzle device according to. The plurality of cleaning positions are an butt cleaning position and a bidet cleaning position advanced from the butt cleaning position, and the nozzle cover is pulled and moved by the nozzle body between the storage position and the butt cleaning position. Item 4. The nozzle device according to any one of Items 1 to 3. The connecting means includes a connecting member provided on one of the nozzle body and the nozzle cover, a connecting receiving portion provided on the other, and the connecting member and the connecting receiving portion connected by an elastic force. The nozzle device according to claim 1, wherein the connection between the connection member and the connection receiving portion can be released by a driving force of the drive means. The nozzle device according to claim 5 , wherein the connecting member and the connection receiving portion can be connected at two locations where the relative positions of the nozzle body and the nozzle cover are different in the sliding direction. The drive means includes a drive motor, a pinion gear, and a rack provided on the nozzle body, and the rotation of the drive motor slides on the nozzle body via the pinion gear and the rack. The nozzle device according to any one of 1 to 5. The nozzle according to claim 7 , wherein the drive unit includes a rotation detection unit that detects a rotation speed of the drive motor, and the movement distance of the nozzle body is controlled by controlling the rotation speed of the drive motor. apparatus. A nozzle device according to any one of claims 1 to 8, a cleaning water supply means for supplying cleaning water to the nozzle device, a control means for controlling the nozzle device and the cleaning water supply means, and an upper surface of a toilet bowl Sanitary washing device with a toilet seat to be placed on.