JP6828490B2 - Fixed structure of atomizer - Google Patents

Description

The invention of the present disclosure relates to a fixed structure of a sprayer that ejects a liquid onto the surface of a toilet bowl portion of a toilet bowl.

Conventionally, a toilet seat device including a base member attached to the upper surface of a pedestal portion of a toilet bowl body and a speaker directly attached to the base member is known (see, for example, Patent Document 1). The base member and speaker of this toilet seat device are fastened to each other via a fastening member to fix the speaker to the base member, and the fixed portion is locked to each other without being fastened. A temporary fixing portion for holding the speaker at a predetermined fixed position on the base member is provided.

Japanese Patent No. 5591516

By the way, in recent years, in order to prevent filth from adhering to the surface of the toilet bowl, a sanitary cleaning device including a sprayer that ejects water onto the surface of the toilet before the user uses the toilet has been introduced. Proposed. However, if such a sprayer is to be fixed to the base member of the sanitary cleaning device by a fastening member, it is necessary to secure a space for arranging the fastening member in addition to the clearance with other members around the sprayer. It becomes difficult to suppress the increase in size of the sanitary cleaning device due to the installation of the.

Therefore, an object of the present invention is to provide a fixing structure capable of appropriately fixing a sprayer that ejects a liquid to the surface of a toilet bowl portion of a toilet bowl to a base member while suppressing an increase in installation space.

The fixing structure of the sprayer of the present disclosure is a fixing structure of the sprayer for fixing the sprayer that ejects liquid to the surface of the toilet bowl portion of the toilet bowl to a base member attached to the toilet bowl, and extends from the outer peripheral surface of the sprayer. A pair of arm portions that are exposed and elastically deformable so that the free end portions are close to the outer peripheral surface, and a pair of arm portions that are provided on the base member and can be engaged with the corresponding arm portions, respectively. A hook portion that includes an engaging portion and projects in a direction away from the outer peripheral surface is formed at the free end portion of the arm portion, and the hook portion is on the base end portion side of the arm portion. The engaging portion has a recess that is inclined so as to be separated from the base member from the free end portion side toward the base end portion side, and the engaging portion is a recess into which the arm portion is elastically fitted. It has a support surface that is inclined so as to come into contact with the inclined surface of the hook portion.

This fixing structure is for fixing a sprayer that ejects liquid to the surface of the toilet bowl portion of the toilet bowl to a base member attached to the toilet bowl, and is provided on the pair of arm portions provided on the sprayer and the base member. Includes a pair of engaging parts. The pair of arm portions extend from the outer peripheral surface of the atomizer and can be elastically deformed so that the free end portions are close to the outer peripheral surface. A hook portion is formed on the free end portion of the arm portion so as to project in a direction away from the outer peripheral surface, and the hook portion is formed on the proximal end side of the arm portion from the free end portion side to the proximal end portion side. It has an inclined surface that is inclined so as to be separated from the base member. Each of the pair of engaging portions can be engaged with the corresponding arm portion, and has a recess in which the arm portion is elastically fitted and a support surface inclined so as to abut the inclined surface of the hook portion. In such a fixed structure, each arm portion is elastically deformed so that the free end portion is close to the outer peripheral surface and inserted into the concave portion of the corresponding engaging portion, and each arm portion is elastically fitted into the concave portion. It is possible to fix the atomizer to the base member by snap-fitting without using a fastening member. Further, by bringing the inclined surface formed on the hook portion of each arm portion into contact with the support surface of the corresponding engaging portion, the recess and the arm portion are slightly located in a direction orthogonal to the extending direction of the arm portion. Even if there is backlash, the rotation of the atomizer can be regulated well. As a result, it is possible to properly fix the atomizer to the base member while suppressing an increase in the installation space.

Further, an inclined portion inclined toward the toilet bowl portion may be formed at one end of the base member, and the free end portion of the pair of arm portions is located on the ejection port side of the atomizer. The pair of engaging portions may be formed symmetrically with respect to the central surface in the width direction of the atomizer, and the pair of engaging portions are inclined so that the support surfaces are located on the toilet bowl portion side and the recesses face each other. It may be formed in a portion. As a result, the atomizer can be easily assembled to the inclined portion of the base member, and the liquid can be ejected from the atomizer attached to the inclined portion to a wider range on the surface of the toilet bowl portion.

Further, the angle formed by the support surface of the engaging portion and the inclined portion may be equal to or less than the angle formed by the flat surface orthogonal to the flat surface of the base member and the inclined portion. This makes it possible to form the base member using the fixed type and the movable type without causing an undercut. If the angle formed by the support surface and the inclined portion is equal to or less than the angle formed by the plane and the inclined portion orthogonal to the flat surface of the base member, the angle formed by the support surface and the inclined portion (and the inclined surface of the arm portion). By changing the tilt angle), it is possible to change the spray range of the liquid ejected from the sprayer.

Further, the atomizer and the base member may be made of resin. This makes it possible to easily form an elastically deformable arm portion in the atomizer, and to easily form a base member using a fixed type and a movable type.

It is a perspective view which shows the toilet bowl which attached the sanitary cleaning apparatus including the fixed structure of this disclosure. FIG. 5 is a partial cross-sectional view showing a toilet bowl to which a sanitary cleaning device including the fixed structure of the present disclosure is attached. It is a front view which shows the sanitary cleaning apparatus including the fixed structure of this disclosure. It is an enlarged view of the main part which shows the sanitary cleaning apparatus including the fixed structure of this disclosure. It is an enlarged view of the main part which shows the sanitary cleaning apparatus including the fixed structure of this disclosure. It is an exploded perspective view which shows the fixed structure of this disclosure. It is an exploded perspective view which shows the fixed structure of this disclosure. It is a side view which shows the fixed structure of this disclosure. It is sectional drawing which shows the fixed structure of this disclosure. It is sectional drawing which shows the fixed structure of this disclosure. 9 is a cross-sectional view taken along the line X1-XI of FIG. It is a partial cross-sectional view which shows the state which the atomizer is attached to the base member of a sanitary cleaning apparatus. It is a partial cross-sectional view which shows the state which the atomizer is attached to the base member of a sanitary cleaning apparatus. It is a perspective view which shows the attachment procedure of the atomizer with respect to the base member of a sanitary cleaning apparatus.

Next, a mode for carrying out the invention of the present disclosure will be described with reference to the drawings.

FIG. 1 is a perspective view showing a toilet bowl 1 to which a sanitary cleaning device 10 including the fixed structure of the present disclosure is attached. The toilet bowl 1 shown in the figure is a Western-style seated toilet bowl, and the sanitary cleaning device 10 is fixed to the upper surface of the toilet bowl 1. The sanitary cleaning device 10 includes a casing 11, a toilet seat 12 rotatably supported by the casing 11, a toilet lid 13 rotatably supported by the casing 11 like the toilet seat 12, and an operation panel 14. including.

The casing 11 of the sanitary cleaning device 10 includes a resin base plate (base member) 110 fixed to the upper surface of the toilet bowl 1 and a resin cover 119 detachably attached to the base plate 110. As shown in FIG. 2, the base plate 110 has a flat portion 111 fixed to the upper surface of the toilet bowl 1 and an inclination extending from one end of the flat portion 111 toward the toilet bowl portion 2 of the toilet bowl 1. It has a part 112. When the casing 11 (base plate 110) is fixed to the toilet bowl 1, the inclined portion 112 enters the toilet bowl portion 2 as shown in the figure.

Inside the casing 11 (base plate 110 and cover 119), as shown in FIG. 3, a buttocks cleaning nozzle 15 and a bidet nozzle 16 as human body cleaning nozzles that eject water (including hot water) locally on the human body are arranged. ing. As shown in FIGS. 4 and 5, the buttocks cleaning nozzle 15 includes a nozzle body 15n that can move forward and backward with respect to the casing 11, and a cylinder portion 15s that houses the nozzle body 15n so that it can move forward and backward. The cylinder portion 15s is moved forward and backward in the axial direction with respect to the casing 11 within a predetermined range by an actuator (not shown) including a motor, a rack and pinion mechanism, and the like. Further, the nozzle body 15n is moved forward and backward in the axial direction between the storage position and the cleaning position on the toilet bowl portion 2 side by the pressure of water supplied to the buttocks cleaning nozzle 15 or the urging force of a spring (not shown).

The bidet nozzle 16 includes a nozzle body 16n that can move forward and backward with respect to the casing 11 and a cylinder portion 16s that houses the nozzle body 16n so that it can move forward and backward. The cylinder portion 16s is moved forward and backward in the axial direction with respect to the casing 11 within a predetermined range by the actuator. Further, the nozzle body 16n is moved back and forth in the axial direction between the storage position and the cleaning position on the toilet bowl portion 2 side by the pressure of water supplied to the bidet nozzle 16 or the urging force of a spring (not shown).

Further, inside the casing 11, a valve unit connected to a water pipe (water source) via a branch faucet or a water supply hose, a water tank connected to the valve unit, a tail cleaning nozzle 15, a bidet nozzle 16, and water. A rotary valve (water condition adjustment switching valve), etc. connected to the tank (all not shown) is housed. The valve unit includes a strainer, a check valve, a constant flow rate valve, a water stop solenoid valve, a relief valve and the like. The water tank has a heater and a temperature sensor for heating water from a water pipe (water source), and can store hot water heated by the heater. The rotary valve can selectively switch the water supply destination from the water tank between the buttocks cleaning nozzle 15 and the bidet nozzle 16 and adjust the amount of water supplied to the nozzles 15 and 16. The sanitary cleaning device 10 may be provided with a heat exchanger having a heating heater instead of the water tank so that so-called instantaneous hot water supply is possible.

Further, a control device (not shown) for controlling the sanitary cleaning device 10 is housed inside the casing 11. The control device includes a valve unit, a water tank heater, an actuator for a tail cleaning nozzle 15 and a bidet nozzle 16, and a rotary based on signals from an operation panel 14, a seating sensor 19 (see FIG. 1), a water tank temperature sensor, and the like. Control valves, etc.

As shown in FIGS. 2 and 3, the casing 11 of the sanitary cleaning device 10 is provided with a movable shutter (scattering suppression member) 17. As shown in FIG. 3, the shutter 17 is a substantially trapezoidal plate-like body having a width similar to the width of the opening of the toilet seat 12, and the upper end portion of the shutter 17 in FIG. 3 is via a hinge 17h. It is rotatably supported by the cover 119 of the casing 11. Although the shutter 17 of the present embodiment is formed in a flat plate shape, it may have an arcuate cross-sectional shape. Further, a spring (not shown) is interposed between the shutter 17 and the cover 119 of the casing 11, and the shutter 17 is urged to the closed position side shown in FIG. 4 by the spring. In the closed position, the shutter 17 covers the tip of the buttocks cleaning nozzle 15 and the tip of the bidet nozzle 16. As a result, it is possible to suppress the dirt on the buttocks cleaning nozzle 15, the bidet nozzle 16, and the peripheral portion thereof, or to hide both of them to maintain the aesthetic appearance.

Further, the shutter 17 is connected to a link mechanism 18 as a motion conversion mechanism that converts a linear motion of the cylinder portion 15s or 16s along the axial direction into a rotational motion of the shutter 17. The link mechanism 18 is a first link pin-coupled to a shutter 17 at a position separated from the hinge 17h toward the free end side with a slider 180 guided by a guide portion 11g formed on the casing 11 (base plate 110 or cover 119). Includes 181 and a second link 182 that is pin-coupled to the slider 180 and pin-coupled to the first link 181. Further, pressing portions 15p or 16p are provided on the outer peripheral surfaces of the cylinder portion 15s of the buttocks cleaning nozzle 15 and the cylinder portion 16s of the bidet nozzle 16 so as to be in contact with the slider 180 of the link mechanism 18.

As shown in FIG. 4, the pressing portions 15p and 16p of the cylinder portions 15s and 16s are separated from the slider 180 of the link mechanism 18 when the shutter 17 is in the closed position, and may come into contact with the slider 180. Absent. On the other hand, when any one of the cylinder portions 15s and 16s of the buttocks cleaning nozzle 15 and the bidet nozzle 16 moves toward the toilet bowl portion 2, as shown in FIG. 5, the pressing portion 15p or 16p corresponds to the link mechanism. The slider 180 is pressed against the slider 180 of 18. The slider 180 moves toward the shutter 17 when pressed by the pressing portion 15p or 16p, and the first and second links 181, 182 move so as to press the shutter 17 as the slider 180 moves. .. As a result, the shutter 17 rotates so as to jump upward with the hinge 17h as a fulcrum against the urging force of the spring.

The cylinder portion 15s or 16s is stopped at the timing when the slider 180 of the link mechanism 18 comes into contact with one end (left end in FIG. 5) of the guide portion 11, and the shutter 17 is stopped by the cylinder portion 15s or 16s at which a part thereof is stopped. It is maintained in the open position by being supported. As a result, the nozzle body 15n of the buttocks cleaning nozzle 15 and the nozzle body 16n of the bidet nozzle 16 can be moved to the cleaning position on the toilet bowl portion 2 side. Further, when the cylinder portion 15s or 16s moves toward the flat portion 111 side, the shutter 17 is not supported by the cylinder portion 15s or 16s and is urged by a spring (not shown) to return to the closed position.

Further, the sanitary cleaning device 10 includes a sprayer 20 that ejects water onto the surface of the toilet bowl portion 2 of the toilet bowl 1. The sprayer 20 smoothes the surface of the toilet bowl portion 2 by spraying water to prevent filth from adhering to the toilet bowl portion 2, and also causes a water film to be interposed between the filth and the surface of the toilet bowl portion 2 to remove the filth from the toilet bowl when cleaning the toilet bowl. It is used to make it easier to separate from the surface of part 2. As shown in FIG. 2 and the like, the atomizer 20 is fixed to the above-mentioned inclined portion 112 formed on the base plate 110 of the casing 11.

6 and 7 are exploded perspective views showing the atomizer 20, FIG. 8 is a side view showing the atomizer 20, and FIGS. 9 and 10 are cross-sectional views showing the atomizer 20. As shown in these drawings, the atomizer 20 includes a main body 21 and a flow dividing member 22 arranged inside the main body 21. The main body 21 is formed by joining the first tubular body 211 and the second tubular body 212 formed of resin to each other.

As shown in FIGS. 6 and 7, the first tubular body 211 is a bottomed cylindrical first large-diameter portion 213 with one end open, and a first tubular body from the end faces of the first large-diameter portion 213. It has a first small diameter portion 215 having a diameter smaller than that of the first large diameter portion 213 extending in the axial direction of 211. Inside the first large diameter portion 213, a positioning protrusion 213a for positioning the second tubular body 212 is formed so as to extend in the axial direction of the first large diameter portion 213. Further, on the outer peripheral surface of the first large diameter portion 213, a backlash suppressing protrusion 213b for contacting the inclined portion 112 of the base plate 110 and suppressing the rattling of the sprayer 20 with respect to the inclined portion 112 is provided on the first large diameter portion 213. It is formed so as to extend in the axial direction of the portion 213.

The first small diameter portion 215 is formed in a so-called bamboo shoot joint shape, and as shown in FIG. 9, the first small diameter portion 215 extends in the axial direction and the sprayer 20 formed at the free end portion thereof. It has a supply path 215p that communicates with the inside of the supply port 20i and the first large diameter portion 213. The first small diameter portion 215, that is, the supply port 20i is connected to the rotary valve via a branch valve (not shown) installed on the downstream side of the rotary valve described above. As a result, water from the water tank (or a heat exchanger having a heater) is supplied to the atomizer 20 (supply port 20i) via the rotary valve. However, the first small diameter portion 215 (supply port 20i) may be connected to the water pipe via an on-off valve or the like.

Further, the first tubular body 211 includes a pair of arm portions 217 integrally formed with the first large diameter portion 213, as shown in FIGS. 6 and 7. Each arm portion 217 extends from the outer peripheral surface of the first large diameter portion 213 so as to extend in the axial direction of the first large diameter portion 213. The base end portion 217a of each arm portion 217 extends radially outward from the outer peripheral surface of the first large diameter portion 213, and the free end portion 217b of each arm portion 217 and the outer peripheral surface of the first large diameter portion 213. A gap is formed between and. As a result, each arm portion 217 can be elastically deformed so that the free end portion 217b is close to the outer peripheral surface of the first large diameter portion 213.

In the present embodiment, the pair of arm portions 217 have a central surface in the width direction of the atomizer 20, that is, a first large diameter portion 213 and a first small diameter portion so that the free end portion 217b is located on the ejection port 20o side of the atomizer 20. It is formed symmetrically with respect to a plane including the axis of 215 (supply path 215p) and the center line in the width direction of the backlash suppression protrusion 213b. Further, the free end portion 217b of each arm portion 217 is formed with a hook portion 217f protruding in a direction away from the outer peripheral surface of the first large diameter portion 213. As shown in FIG. 8, the hook portion 217f starts from the backlash suppressing protrusion 213b, that is, the inclined portion 112 (base plate 110) as the arm portion 217 moves from the free end portion 217b side to the base end portion 217a side on the base end portion 217a side. It has a flat inclined surface 217s inclined so as to be separated from each other. The tip of the hook portion 217f is tapered as shown in FIG. 6 and the like.

As shown in FIGS. 6 and 7, the second tubular body 212 has a second large-diameter portion 214 on which the spout 20o is formed and an end surface of the second large-diameter portion 214 opposite to the spout 20o side. It has a second small diameter portion 216 having a diameter smaller than that of the second large diameter portion 214 extending from the second tubular body 212 in the axial direction. The second large diameter portion 214 is formed in a short cylindrical shape having substantially the same outer diameter as the first large diameter portion 213. As shown in FIG. 8, the length L1 from the end face surrounding the spout 20o of the second large diameter portion 214 to the end face on the second small diameter portion 216 side is the second tubular body of the first large diameter portion 213. The length from the end face on the 212 (open end) side to the end face on the supply port 20i side is set to be shorter than L2. Further, a welding rib 214L, which is an annular protrusion having a substantially triangular cross-sectional shape, is formed on the end surface of the second large diameter portion 214 on the second small diameter portion 216 side.

The second small diameter portion 216 has an outer diameter slightly smaller than the inner diameter of the first large diameter portion 213 of the first tubular body 211, and is inserted into the inside of the first large diameter portion 213. In this way, by forming the second small diameter portion 216 to have a slightly smaller diameter than the first large diameter portion 213, it is possible to improve the assembling property of the second tubular body 212 with respect to the first tubular body 211. .. However, the second small diameter portion 216 may be formed to have a slightly larger diameter than the first large diameter portion 213 and press-fitted into the inside of the first large diameter portion 213. Further, as shown in FIGS. 9 and 10, the second small diameter portion 216 is formed in a cylindrical shape having an axial length shorter than the axial length of the internal space of the first large diameter portion 213. Further, a positioning recess 216a (see FIGS. 9 and 11) into which the positioning protrusion 213a of the first large diameter portion 213 is fitted is formed on the outer peripheral surface of the second small diameter portion 216.

As shown in FIGS. 9 and 10, inside the second tubular body 212 (second large diameter portion 214 and second small diameter portion 216), an accommodating portion 218a in which the flow dividing member 22 is arranged and the accommodating portion 218a are provided. A communication passage 218b that communicates the 218a and the spout 20o is formed. The accommodating portion 218a has a circular cross-sectional shape, is mainly defined by the second small diameter portion 216, and extends coaxially with the ejection port 20o. The communication passage 218b is formed so that the inner diameter gradually decreases from the accommodating portion 218a toward the spout 20o, and extends coaxially with the spout 20o and the accommodating portion 218a. Further, the spout 20o is formed so that the inner diameter gradually increases as the distance from the communication passage 218b increases.

In the present embodiment, in the accommodating portion 218a, the communication passage 218b, and the spout 20o, as shown in FIGS. 9 and 10, the second small diameter portion 216 of the second tubular body 212 is the first of the first tubular body 211. When inserted into the large diameter portion 213, the respective axes are separated (shifted) from the axis of the supply path 215p of the first tubular body 211 (first small diameter portion 215) on the central surface. It is formed on the second tubular body 212. Further, as shown in FIGS. 7 and 10, a plurality of inner peripheral surfaces of the second large-diameter portion 214 and the second small-diameter portion 216 that define the accommodating portion 218a are recessed radially outward from the inner peripheral surface. Liquid passage 218p is formed. In the present embodiment, two liquid passages 218p having an arcuate cross-sectional shape are formed symmetrically with respect to the central plane in the width direction of the atomizer 20 with respect to the second cylindrical body 212, and each liquid passage 218p is formed symmetrically with respect to the central plane. , It is defined by a concave cylindrical surface and a plane extending parallel to each other.

The flow dividing member 22 is a resin-made cylindrical member having a through hole (liquid passage) 22p having a circular cross-sectional shape extending along the central axis, and is slightly smaller than the inner diameter of the accommodating portion 218a of the second tubular body 212. Has a small outer diameter. Further, as shown in FIG. 6, a positioning protrusion 220 and a plurality of (at least three, for example, four in the present embodiment) press-fitting ribs are formed on the outer peripheral surface of the flow dividing member 22. In the flow dividing member 22, the positioning protrusion 220 is fitted into the positioning recess 216b formed in the second small diameter portion 216 of the second tubular body 212, and a plurality of press-fitting ribs are press-fitted into the inner peripheral surface of the accommodating portion 218a. It is arranged in the second tubular body 212 so as to be. As a result, the flow dividing member 22 has the main body 21 (first and second tubular bodies 211, 212) in a state where the axis of the through hole 22p and the axis of the supply path 215p are displaced (separated) on the central surface. ) Will be placed inside.

Further, the flow dividing member 22 has two projecting portions 221 that project in the axial direction from the end face on the side opposite to the ejection port 20o side and face each other in the radial direction. In the present embodiment, the outer peripheral surface of each protruding portion 221 is a cylindrical surface having the same radius of curvature as the outer peripheral surface of the flow dividing member 22, and the inner surface and end surface of each protruding portion 221 are flat surfaces. When the flow dividing member 22 is arranged in the accommodating portion 218a of the main body 21 (second tubular body 212), the protruding portion 221 located on the upper side in the drawing of the two protruding portions 221 is as shown in FIG. It faces the supply path 215p of the first tubular body 211 at an axial distance, and the inner surface of each protrusion 221 is from the plane and the axial direction that define the two liquid passages 218p, as shown in FIG. It extends in parallel.

Further, the flow dividing member 22 has a short cylindrical swirl flow forming portion 222 communicating with the through hole 22p. As shown in FIG. 6, the swirl flow forming portion 222 is formed in a cylindrical shape having a diameter smaller than the outer peripheral surface of the flow dividing member 22, and projects in the axial direction from the end surface of the flow dividing member 22 on the ejection port 20o side. When the flow dividing member 22 is arranged in the accommodating portion 218a of the main body 21 (second tubular body 212), a second tubular shape is formed between the outer peripheral surface of the swirling flow forming portion 222 and the inner peripheral surface of the accommodating portion 218a. An annular space communicating with each liquid passage 218p of the body 212 is defined, and the inside of the swirling flow forming portion 222 communicates with the ejection port 20o via the communication passage 218b.

As shown in FIGS. 6, 9 and 11, the swirl flow forming portion 222 is formed with two liquid inflow ports 223 extending in the tangential direction of the inner peripheral surface of the swirl flow forming portion 222, respectively. .. In the present embodiment, the two liquid inflow ports 223 are formed at positions symmetrical with respect to the center of the swirling flow forming portion 222 (the axis of the spout 20o or the like). Further, in the present embodiment, each liquid inflow port 223 has a rectangular cross-sectional shape, and as can be seen from FIG. 11, the inner circumference of the swirling flow forming portion 222 is on the plane defining each liquid inflow port 223. Includes a plane in contact with the surface. When the flow dividing member 22 is arranged in the accommodating portion 218a of the main body 21 (second tubular body 212), each liquid inflow port 223 has a corresponding liquid passage 218p of the second tubular body 212 as shown in FIG. It is located slightly on the spout 20o side when viewed from the axial direction with respect to the plane that defines. As a result, the inside of each liquid inflow port 223, that is, the swirl flow forming portion 222, communicates with the corresponding (close) liquid passage 218p through the surrounding annular space.

When assembling the atomizer 20 including the first and second tubular bodies 211 and 212 and the flow dividing member 22 described above, in the flow dividing member 22, the positioning protrusion 220 is fitted into the positioning recess 216b of the second small diameter portion 216, and A plurality of press-fit ribs are arranged in the accommodating portion 218a of the second tubular body 212 so as to be press-fitted into the inner peripheral surface of the accommodating portion 218a. As a result, the two liquid passages 218p are located on both sides of the space between the two protrusions 221 and the diversion member 22 is connected so that the liquid inlet 223 of the swirl flow forming portion 222 communicates with the corresponding liquid passage 218p. It can be positioned on the two tubular body 212 (main body 21). Further, in the second small diameter portion 216 to which the flow dividing member 22 is assembled, the welding rib 214L of the second large diameter portion 214 abuts on the end surface of the first large diameter portion 213 of the first tubular body 211 and is formed in the positioning recess 216a. It is inserted into the first large diameter portion 213 so that the positioning protrusion 213a fits into the portion. Then, on the end surface surrounding the ejection port 20o of the second large-diameter portion 214, the second tubular body 212 is pressed against the first tubular body 211, and ultrasonic waves from an ultrasonic generator (not shown) are used. Is applied.

As a result, the tip of the annular weld rib 214L is melted, so that the second large diameter portion 214, that is, the second tubular body 212 is liquid-tightly joined to the first large diameter portion 213, that is, the first tubular body 211. It will be. Therefore, in the atomizer 20, the first and second tubular bodies 211 and 212 can be liquid-tightly joined without using a fastening member such as a bolt or a sealing member, and the entire atomizer 20 can be miniaturized. Further, in the atomizer 20, the length L1 between both end faces of the second large diameter portion 214 is set to be shorter than the length L2 between the end faces of the first large diameter portion 213. As a result, the welding rib 214L is satisfactorily welded to the end face of the first large diameter portion 213 of the first tubular body 211 by applying ultrasonic waves from the end face of the second large diameter portion 214 on the ejection port 20o side. Is possible.

12 and 13 are partial cross-sectional views showing a state in which the atomizer 20 is attached to the inclined portion 112 of the base plate 110. As shown in these drawings, the inclined portion 112 of the base plate 110 corresponds to a mounting portion 113 on which the atomizer 20 is mounted, an end wall portion 114 having an opening for exposing the ejection port 20o of the atomizer 20, and the atomizer 20. A pair of engaging portions 115 that can be engaged with the arm portion 217 to be engaged are provided. The mounting portion 113 is formed so as to have an arcuate cross-sectional shape along the outer peripheral surfaces of the first and second large diameter portions 213 and 214 of the atomizer 20, and the surface thereof is the first tubular shape of the atomizer 20. It comes into contact with the backlash suppressing protrusion 213b formed on the body 211 (first large diameter portion 213).

Further, each engaging portion 115 has a recess 115a through which the arm portion 217 of the atomizer 20 can be inserted, and a flat support surface 115s inclined so as to abut the inclined surface 217s of the hook portion 217f. In the present embodiment, each engaging portion 115 has a side surface shape having a substantially right-angled triangular shape, the support surface 115s is located on the end wall portion 114 side, that is, the toilet bowl portion 2 side, and the recesses 115a form the mounting portion 113. It extends from the vicinity of the corresponding side edge portion of the mounting portion 113 to the flat portion 111 (upper side in the drawing) so as to face each other. Further, the angle α formed by the support surface 115s of each engaging portion 115 and the extending direction of the inclined portion 112 is a plane P1 (see FIG. 12) and the inclined portion 112 orthogonal to the extending direction of the flat portion 111 of the base plate 110. The angle β formed with the extending direction of the arm portion 217 and the tilt angle γ of the inclined surface 217s of the arm portion 217 (the angle formed by the inclined surface 217s and the axial center of the first large diameter portion 213, see FIG. 8) are determined to be the same. ing. Further, the distance between the inner side surfaces 115i of the recesses 115a facing each other is set to be slightly shorter than the width between the portions on the base end portion 217a side of the hook portion 217f of the pair of arm portions 217.

When attaching the sprayer 20 to the inclined portion 112 including the pair of engaging portions 115 as described above, after connecting a hose or the like (not shown) to the first small diameter portion 215 (supply port 20i) of the sprayer 20, the backlash suppression protrusion As shown in FIG. 14, the sprayer 20 is pushed between the pair of engaging portions 115 from the flat portion 111 side toward the end wall portion 114 side while bringing the portion 213b into contact with the surface of the mounting portion 113. When the sprayer 20 is pushed between the pair of engaging portions 115, each arm portion 217 is elastically deformed so that the free end portion 217b (hook portion 217f) side is close to the outer peripheral surface of the first large diameter portion 213 or the like. While passing through the recess 115a of the corresponding engaging portion 115. Then, when the hook portion 217f of each arm portion 217 reaches the end wall portion 114 side of the recess 115a, the portion of each arm portion 217 on the base end portion 217a side of the hook portion 217f corresponds to the elasticity of the arm portion 217. It is pressed against the inner side surface 115i of the recess 115a. Further, the inclined surface 217s of each hook portion 217f comes into contact with the support surface 115s of the corresponding engaging portion 115.

In this way, each arm portion 217 is elastically deformed so that the free end portion 217b (hook portion 217f) is close to the outer peripheral surface and inserted into the recess 115a of the corresponding engaging portion 115, and each arm portion 217 is inserted into the recess 115a. On the other hand, by elastically fitting, the atomizer 20 can be fixed to the inclined portion 112 of the base plate 110 by snap fit without using a fastening member. Further, by bringing the inclined surface 217s formed on the hook portion 217f of each arm portion 217 into contact with the support surface 115s of the corresponding engaging portion 115, the recess 115a is formed in a direction orthogonal to the extending direction of the arm portion 217. Even if there is some play between the arm portion 217 and the arm portion 217, it is possible to satisfactorily regulate the rotation of the atomizer 20. As a result, the atomizer 20 can be properly fixed to the inclined portion 112 of the base plate 110 while suppressing an increase in the installation space.

Subsequently, the operation related to the atomizer 20 of the sanitary cleaning device 10 including the atomizer 20 configured as described above will be described.

In the control device (not shown) of the sanitary cleaning device 10, the user uses the toilet bowl 1 based on a signal from the seating sensor 19 and a signal from a seating switch (not shown) that is turned on in conjunction with the rotation hinge portion of the toilet seat 12. When it is determined that the toilet seat 12 is seated, the above-mentioned actuator is controlled so as to move either one of the cylinder portions 15s and 16s to the toilet bowl portion 2 side. When either one of the cylinder portions 15s and 16s moves toward the toilet bowl portion 2, the pressing portion 15p or 16p presses the slider 180 of the link mechanism 18, and the slider 180 moves toward the shutter 17. As a result, the first and second links 181, 182 move so as to press the shutter 17 with the movement of the slider 180, and the shutter 17 rotates so as to jump upward with the hinge 17h as a fulcrum. Further, the control device stops the cylinder portion 15s or 16s at the timing when the slider 180 of the link mechanism 18 comes into contact with one end of the guide portion 11g. As a result, a part of the shutter 17 is supported by the cylinder portion 15s or 16s and is maintained in the open position.

Next, the control device of the sanitary cleaning device 10 controls the rotary valve so that water is supplied from the water tank (or a heat exchanger having a heater) to the supply port 20i of the atomizer 20. When water is supplied to the supply port 20i of the atomizer 20, the supplied water travels in the supply path 215p of the atomizer 20 and flows into the inside of the first large diameter portion 213. A part of the water that has flowed into the inside of the first large-diameter portion 213 flows into the through hole 22p of the flow dividing member 22 and goes straight toward the ejection port 20o. Further, a part of the water that has flowed into the inside of the first large-diameter portion 213 flows into the two liquid passages 218p formed in the second tubular body 212, and swirls along the outer peripheral surface of the flow dividing member 22. It goes straight toward the annular space between the outer peripheral surface of the forming portion 222 and the inner peripheral surface of the accommodating portion 218a.

Here, in the sprayer 20 of the present embodiment, instead of forming the liquid passage on the outer peripheral surface of the flow dividing member 22, two liquid passages 218p are formed on the inner peripheral surface of the second tubular body 212 constituting the main body 21. Has been done. As a result, the cross-sectional areas of the through hole 22p and the two liquid passages 218p are appropriately set, and the water from the supply port 20i is properly set as a plurality of water flow components by the flow dividing member 22 between the supply port 20i and the ejection port 20o. In addition to dividing the flow, the diameter of the flow dividing member 22 can be easily reduced as compared with the case where a plurality of liquid passages are formed on the outer peripheral surface of the flow dividing member 22.

Further, in the atomizer 20, the flow dividing member 22 is arranged inside the main body 21 in a state where the axis of the through hole 22p and the axis of the supply path 215p are deviated from each other, and the flow dividing member 22 is spaced from the supply path 215p. A protruding portion 221 projecting toward the supply path 215p is formed so as to face each other. As a result, in the atomizer 20, the water flowing out from the supply path 215p collides with the protrusion 221 facing the supply path 215p and is appropriately distributed by the through hole 22p of the flow dividing member 22 and the two liquid passages 218p. The flow rate of water flowing into the two liquid passages 218p can be optimized.

Further, the water flowing through each liquid passage 218p flows from the annular space into the inside of the swirling flow forming portion 222 via the liquid inflow port 223. As described above, each liquid inflow port 223 extends in the tangential direction of the inner peripheral surface of the swirl flow forming portion 222, and the flow dividing member 22 communicates with the corresponding liquid passage 218p by the liquid inflow port 223. It is positioned on the second tubular body 212 (main body 21). Therefore, in the atomizer 20, the swirling flow can be efficiently formed in the swirling flow forming portion 222, and the swirling water can be pushed out by the water from the through hole 22p to be ejected from the ejection port 20o. Therefore, with the shutter 17 maintained in the open position, it is possible to spirally eject water from the ejection port 20o of the atomizer 20 while swirling it to spread it over a wider range on the surface of the toilet bowl portion 2. ..

As described above, in the sanitary cleaning device 10, water is ejected from the sprayer 20 to the surface of the toilet bowl portion 2 of the toilet bowl 1 in a state where the shutter 17 as a movable scattering suppression member is rotated from the closed position to the open position. Can be made to. As a result, even if water is ejected from the sprayer 20 to the toilet bowl portion 2 while the user is seated on the toilet bowl 1, the ejected water (water droplets) is relatively less likely to be scattered on the upper surface side of the toilet bowl 1. It can be suppressed by the wide shutter 17 (see FIG. 2), and it is possible to satisfactorily suppress water droplets from scattering and adhering to the user's buttocks and legs. Then, by ejecting water from the sprayer 20 onto the toilet bowl portion 2, the surface of the toilet bowl portion 2 is smoothed to prevent filth from adhering, and a water film is formed between the filth and the surface of the toilet bowl portion 2. By interposing it, it becomes possible to easily separate the filth from the surface of the toilet bowl portion 2 when cleaning the toilet bowl.

As a result, it is possible to prevent filth from adhering to the surface of the toilet bowl portion 2 of the toilet bowl 1 while not causing discomfort to the user. In addition, by making the shutter 17 movable, it is possible to return the shutter 17 to the closed position when water is not ejected from the atomizer 20. Therefore, it is possible to prevent the shutter 17 from interfering with other functions of the sanitary cleaning device 10 and to prevent the shutter 17 from interfering with the cleaning of the toilet bowl 1. In addition, by forming a plurality of liquid passages 218p in the second tubular body 212 to reduce the size of the atomizer 20, it is possible to suppress the increase in size of the sanitary cleaning device 10 accompanying the installation of the atomizer 20. Become.

As described above, the fixing structure of the sprayer 20 of the present disclosure is for fixing the sprayer 20 that ejects the liquid onto the surface of the toilet bowl portion 2 of the toilet bowl 1 to the base plate 110 attached to the toilet bowl 1. A pair of arm portions 217 provided on the base plate 20 and a pair of engaging portions 115 provided on the base plate 110 are included. The pair of arm portions 217 extend from the outer peripheral surface of the first large diameter portion 213 of the atomizer 20, and are elastically deformable so that the free end portions 217b are close to the outer peripheral surface. The free end portion 217b of the arm portion 217 is formed with a hook portion 217f protruding in a direction away from the outer peripheral surface of the first large diameter portion 213, and the hook portion 217f is on the base end portion 217a side of the arm portion 217. It has an inclined surface 217s that is inclined so as to be separated from the base plate 110 from the free end portion 217b side toward the base end portion 217a side. The pair of engaging portions 115 can be engaged with the corresponding arm portions 217, respectively, and the support is inclined so as to abut the recess 115a into which the arm portion 217 is elastically fitted and the inclined surface 217s of the hook portion 217f. It has a surface 115s.

In such a fixed structure, each arm portion 217 is elastically deformed so that the free end portion 217b is close to the outer peripheral surface of the first large diameter portion 213, and is inserted into the recess 115a of the corresponding engaging portion 115, and each arm portion 217 is inserted. By elastically fitting into the recess 115a, the sprayer 20 can be fixed to the base plate 110 by snap-fit without using a fastening member. Further, by bringing the inclined surface 217s formed on the hook portion 217f of each arm portion 217 into contact with the support surface 115s of the corresponding engaging portion 115, the recess 115a is formed in a direction orthogonal to the extending direction of the arm portion 217. The rotation of the atomizer 20 can be satisfactorily regulated even if there is some play between the arm portion 217 and the arm portion 217. As a result, the atomizer 20 can be properly fixed to the base plate 110 while suppressing an increase in the installation space. Further, by making the atomizer 20 made of resin, it is possible to easily form an elastically deformable arm portion 217 on the atomizer 20.

Further, an inclined portion 112 inclined toward the toilet bowl portion 2 is formed at one end of the base plate 110, and the pair of engaging portions 115 have the support surfaces 115s located on the toilet bowl portion 2 side and the recess 115a. The inclined portions 112 are formed so that they face each other. The pair of arm portions 217 of the atomizer 20 are formed symmetrically with respect to the central surface in the width direction of the atomizer 20 so that the free end portion 217b is located on the ejection port 20o side of the atomizer 20. As a result, the atomizer 20 can be easily assembled to the inclined portion 112 of the base plate 110, and water can be ejected from the atomizer 20 assembled to the inclined portion 112 to a wider range on the surface of the toilet bowl portion 2. ..

Further, in the above fixed structure, the angle α formed by the support surface 115s of the engaging portion 115 and the extending direction of the inclined portion 112 is the plane P1 and the inclined portion 112 orthogonal to the extending direction of the flat portion 111 of the base plate 110. It is defined to be the same as the angle β formed by the extending direction. This makes it possible to easily form the base plate 110 from the resin using the fixed type and the movable type without causing an undercut. However, the angle α formed by the support surface 115s and the inclined portion 112 may be set to be smaller (and larger than 0 °) than the angle β formed by the plane P1 and the inclined portion 112. If the angle α formed by the support surface 115s and the inclined portion 112 is equal to or less than the angle β formed by the plane P1 and the inclined portion 112, the angle α formed by the support surface 115s and the inclined portion 112 (and the inclination of the arm portion 217) is formed. By changing the inclination angle γ) of the surface 217s, the spray range of the water ejected from the sprayer 20 can be changed. Further, the angle α formed by the support surface 115s of each engaging portion 115 and the inclined portion 112 and the inclination angle γ of the inclined surface 217s of the arm portion 217 (the angle formed by the inclined surface 217s and the axial center of the first large diameter portion 213). , See FIG. 8).

It goes without saying that the invention of the present disclosure is not limited to the above-described embodiment, and various changes can be made within the extension of the present disclosure. Furthermore, the above-described embodiment is merely a specific embodiment of the invention described in the column of the outline of the invention, and does not limit the elements of the invention described in the column of the outline of the invention.

The invention of the present disclosure can be used in the manufacturing industry of atomizers and sanitary cleaning equipment.

1 toilet bowl, 2 toilet bowl, 10 sanitary cleaning device, 11 casing, 11g guide, 12 toilet seat, 13 toilet lid, 14 operation panel, 15 tail cleaning nozzle, 15n nozzle body, 15p pressing part, 15s cylinder part, 16 bidet nozzle , 16n nozzle body, 16p pressing part, 16s cylinder part, 17 shutter, 17h hinge, 18 link mechanism, 19 seating sensor, 20 atomizer, 20i supply port, 20o spout, 21 body, 22 diversion member, 22p through hole, 110 Base plate, 111 flat part, 112 inclined part, 113 mounting part, 114 end wall part, 115 engaging part, 115a recess, 115i inner surface, 115s support surface, 119 cover, 180 slider, 181 first link, 182 second link , 211 1st tubular body, 212 2nd tubular body, 213 1st large diameter part, 213a positioning protrusion, 213b backlash suppression protrusion, 214 2nd large diameter part, 214L welded rib, 215 1st small diameter part, 215p supply path, 216 second small diameter part, 216a, 216b positioning recess, 217 arm part, 217a base end part, 217b free end part, 217f hook part, 217s inclined surface, 218a storage part, 218b continuous passage, 218p liquid passage, 220 Positioning protrusion, 221 Projection, 222 Swirling flow forming part, 223 Liquid inlet, P1 plane.

Claims (4)

It is a fixed structure of the atomizer for fixing the atomizer that ejects the liquid to the surface of the toilet bowl portion of the toilet bowl to the base member attached to the toilet bowl.
A pair of arm portions extending from the outer peripheral surface of the atomizer and elastically deformable so that the free end portions are close to the outer peripheral surface, respectively.
The base member is provided with a pair of engaging portions that can be engaged with the corresponding arm portion.
A hook portion that protrudes in a direction away from the outer peripheral surface is formed at the free end portion of the arm portion.
The hook portion has an inclined surface that is inclined so as to be separated from the base member from the free end portion side toward the proximal end portion side on the proximal end portion side of the arm portion.
The engaging portion is a fixed structure of a nebulizer having a recess into which the arm portion is elastically fitted and a support surface inclined so as to abut the inclined surface of the hook portion. In the fixed structure of the atomizer according to claim 1,
At one end of the base member, an inclined portion inclined toward the toilet bowl portion is formed.
The pair of arm portions are formed symmetrically with respect to the central surface in the width direction of the atomizer so that the free end portion is located on the ejection port side of the atomizer.
The pair of engaging portions is a fixed structure of a nebulizer formed on the inclined portion so that the support surface is located on the toilet bowl portion side and the recesses face each other. In the fixed structure of the atomizer according to claim 2,
A fixed structure of a sprayer in which the angle formed by the support surface of the engaging portion and the inclined portion is equal to or less than the angle formed by the plane perpendicular to the flat surface of the base member and the inclined portion. In the fixed structure of the atomizer according to claim 3, the atomizer and the base member are formed of a resin.

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