JPH0838951A - Changeover type shower - Google Patents

Abstract

PURPOSE:To reduce the size over the entire part of a device and to reduce the production cost thereof as well by decreasing the number of parts for forming pulsation to form simple and compact constitution. CONSTITUTION:A changeover valve is arranged between a partition plate 30 and a partition part 61. A first port 81a and second port 81b of the changeover valve are selectively communicated with a communicating hole to communicate a main body side space R1 to a continuous flow chamber R21. The second port 81b is communicated to the communicating hole to communicate the main body side space R1 to a pulsation chamber R22. Further, a vortex plate 90 is arranged within the flow passage forming wall 82 of the changeover valve to convert the hot and cold water from the second port 81b into vortex flow which is then fed to an impeller 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switchable shower, and in particular, hot water or cold water supplied from a shower hose by switching a built-in switch valve (hereinafter collectively referred to as "hot / cold water"). The present invention relates to an improvement in the structure of a shower head that selectively ejects water from separate ejection holes to provide an intermittent pulsating flow in addition to the usual continuous continuous flow.

[0002]

2. Description of the Related Art As a conventional switchable shower of this type,
JP-A-5-115813 and JP-A-5-11581
No. 4, Japanese Patent Laid-Open No. 5-115520, No.
No. 39387, No. 5-39660, No. 5-39661, No. 5-39662, No. 5-39664, No. 5-39664, and No. 5-39.
The one disclosed in Japanese Patent No. 665 can be mentioned. FIG.
0 is a cross-sectional view of a conventional switchable shower.

As shown in FIG. 10, in the switchable showers disclosed in these publications, a water supply passage 103 of a grip portion 102 is provided inside a main body 104 of a shower head having a bottomed cylindrical shape with an open lower side. A water chamber 105 that communicates is formed. Further, the dish-shaped sprinkling plate 140 having an opening on the upper side is attached to the main body 1
The lower opening 04 is rotatably attached to cover the opening from the outside. A concave water chamber 15 is provided at the center of the sprinkler plate 140.
3 is formed, and a large number of water spray holes 145 for normal shower jetting are provided on the outer peripheral portion. Body 104
A seat plate 114 is fixedly installed in a partition shape inside the water sprinkling plate 140 of the water chamber 105. A water passage hole 120 is provided at a position eccentric from the center of the seat plate 114. Also, the watering plate and the seat plate 114
A switching valve 126 is fixedly installed between the seat plate and the seat plate 114 so as to be in sliding contact with the seat plate 114. The switching valve 126 has an opening 133 communicating with the water passage hole 120 of the seat plate 114. Further, on the discharge side of the concave water chamber 153 of the water spray plate 140, a cap 170 having a spray hole 174 for spraying a massage shower is attached.
The concave water chamber 153 is covered from the outside, and the concave water chamber 1
An impeller 156 is arranged in 53. The water spray plate 140 is formed with substantially rhombic inlets 149 at equal intervals so that hot and cold water can be spirally introduced into the concave water chamber 153. A water passage 151 is formed between the water spray plate 140 and the switching valve 126 and communicates with the inflow port 149. Further, an annular rib 148 is formed inside the inflow port 149, and the annular rib 148 allows the hot and cold water flowing from each inflow port 149 into the concave water chamber 153 to be impellers of the impeller 156 in the concave water chamber 153. The impeller 156 is rotated well by colliding with the side surface of the.

In this switching shower, by rotating the water sprinkling plate 140, the switching valve 126 integrated by key connection is rotated, and the opening 133 of the switching valve 126 communicates with the water passage hole 120 of the seat plate 114. In this state, the hot and cold water introduced from the water supply passage 103 passes through the water flow passage 151 through the water passage hole 120 and the opening 133, and each of the inlets 14
9 flows into the concave water chamber 153, collides with the side surface of the blade of the impeller 156, and rotates the impeller 156. Then, by rotating the impeller 156, the guide hole 176 of the cap 170 is intermittently opened and closed, and the pulsating flow for massage shower is intermittently ejected from the fountain hole 174 of the cap 170 to obtain a massage shower effect.

[0005]

The conventional switching shower is constructed as described above, and in order to provide the pulsating flow for the massage shower, the opening 133 of the switching valve 126, the water passage hole 120 of the seat plate 114, A hot / cold water flow path is formed by the running water channel 151 and the inflow port 149 of the water spray plate 140,
Since the impeller 156 is rotated by the hot and cold water flowing into the concave water chamber 153 of the water spray plate 140 from the flow passage, the number of parts for forming the flow passage is large and its configuration is complicated. As a result, the inner diameter of the main body increases,
There is room for improvement in terms of handling the entire device as it becomes larger. Furthermore, the degree of freedom is limited in terms of designability, and there is room for improvement in this respect as well.

Therefore, the present invention has a simple and compact structure in which the number of parts for forming a pulsating flow is reduced,
An object of the present invention is to provide a switchable shower that reduces the size of the entire apparatus and also reduces the manufacturing cost thereof.

[0007]

According to a first aspect of the present invention, there is provided a switchable shower having a main body having a bowl-shaped opening at one end, a water supply passage and a water supply chamber communicating with the water supply passage, and a main body of the main body. A water sprinkler plate that is attached to an opening to form the water supply chamber together with the main body, and has a continuous flow hole and a pulsating flow hole that communicate the water supply chamber and the outside, and the water supply chamber to a main body side space and a water sprinkle plate side space. And a partition plate having a communication hole that communicates the main body side space and the sprinkler plate side space, and a continuous flow chamber and a pulsating flow hole that communicate the sprinkler plate side space with the continuous flow hole. A partition formed on a water spray plate that divides into a pulsating chamber, and a partition that is disposed in the pulsating chamber and that opens the pulsating hole of the water spray plate and blocks the pulsating hole by rotation of the water spray plate. And an impeller having a cut-off portion. Between the partition portion formed in a plate,
A switching valve having a first port and a second port selectively communicating with the communication hole is arranged, and the first port communicates with the communication hole to communicate the main body side space with the continuous flow chamber. The switching valve is switchable between a continuous flow position and a pulsating flow position where the main body side space and the pulsating flow chamber communicate with each other by communicating the second port with the communication hole. A swirl plate is arranged between the port and the impeller so that the hot / cold water from the second port is converted into a swirl flow and sent to the impeller.

According to a second aspect of the present invention, there is provided a switching shower according to the first aspect of the invention, wherein the switching valve is in contact with substantially the entire partition plate and has a base portion having the first and second ports. A flow that is integrally formed with the base so as to form a tubular shape that passes through the inside of the first port and the outside of the second port, and has its tip watertightly connected to the partition formed on the sprinkler plate. It is configured by a passage forming wall, and the vortex plate is arranged inside the passage forming wall.

According to a third aspect of the present invention, there is provided a switchable shower having a bowl-like shape having a circular opening at one end, and a main body having a water supply chamber communicating with a water supply passage therein, and being attached to the opening of the main body. A water-spraying plate that forms a water supply chamber and has continuous flow holes and pulsating flow holes that connect the water supply chamber and the outside at the outer peripheral portion and the central portion, respectively, and is watertight so as to be substantially parallel to the opening with respect to the main body. A partition plate that is attached and divides the water supply chamber into a main body side space and a sprinkler plate side space, and has a communication hole that communicates the main body side space and the sprinkler plate side space, the continuous flow hole and the pulsating flow hole. A continuous flow chamber that is integrally formed with the water spray plate so as to form a tubular shape that passes through the space, has an opening at its tip facing the partition plate, and the water spray plate side space communicates with the continuous flow hole, A dispersion that divides into a pulsating flow chamber communicating with the pulsating flow hole. The partition formed on the plate and the partition formed on the water spray plate are arranged in the pulsating chamber in the partition formed on the water spray plate so as to be rotatable in a plane substantially parallel to the water spray plate. A plurality of blades extending in a substantially radial direction, an open portion formed between adjacent predetermined pairs of blades to open the pulsating flow hole, and the pulsating flow hole formed between other adjacent predetermined blades. An impeller having a shut-off portion for shutting off, a base portion abutting the partition plate between the first partition plate and the partition portion formed on the sprinkler plate,
A first hole provided at a position communicating with the communication hole of the base portion.
Partition formed integrally with the base so as to form a cylindrical shape that passes through the first port and the second port, and the inside of the first port and the outside of the second port, and the tip thereof is formed on the sprinkler plate. A switching valve including a flow path forming wall that is watertightly connected to the tip end opening of the portion is provided, and the switching valve connects the first port with the communication hole to connect the main body side space with the continuous flow chamber. A swirl plate is disposed inside the flow passage forming wall so that it can be switched between a position and a pulsating flow position where the main body side space and the pulsating flow chamber communicate with each other by communicating the second port with the communication hole. Then, the hot / cold water from the second port is converted into a vortex flow and fed to the impeller.

[0010]

When the switching valve is operated to switch between the continuous flow position and the pulsating flow position, the first port or the second port selectively communicates with the communication hole of the partition plate. The main body side space of the water supply chamber and the continuous flow chamber or the pulsating flow chamber selectively communicate with each other.

That is, when the switching valve is set to the continuous flow position, the first
Port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing from the water supply passage into the water supply chamber of the main body is guided from the main body side space to the continuous flow chamber through the communication hole of the partition plate and the first port of the switching valve. Then, the hot and cold water that has flowed into the continuous flow chamber is ejected from the continuous flow holes of the water spray plate as a continuous flow used as a normal shower.

On the other hand, when the switching valve is set to the pulsating position, the second port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing into the water supply chamber of the main body from the water supply passage is guided from the main body side space to the swirl plate through the communication hole of the partition plate and the second port of the switching valve. The hot and cold water swirled by the swirl plate flows into the pulsating chamber, and the swirling flow collides with the impeller in the pulsating chamber to rotate the impeller. At the same time, when the open part of the impeller faces the pulsating hole of the water spray plate, the hot and cold water is ejected from the pulsating hole to the outside through the opening part, and when the blocking part faces the pulsating hole. Since the blocking portion blocks the jet from the pulsating flow hole, the pulsating flow is intermittently jetted from the pulsating flow hole according to the rotation pitch of the impeller.

According to the second aspect of the present invention, a flow passage from the second port to the pulsating chamber is formed in the flow passage forming wall of the switching valve, and the swirl plate is arranged in the flow passage. Therefore, the hot / cold water from the first port or the second port of the switching valve is reliably and smoothly guided to the continuous flow chamber or the swirl plate or the pulsating flow chamber along the flow passage forming wall.

In the third aspect of the invention, when the switching valve is switched between the continuous flow position and the pulsating flow position, the first port or the second port selectively communicates with the communication hole of the partition plate. The main body side space of the water supply chamber and the continuous flow chamber or the pulsating flow chamber selectively communicate with each other.

That is, when the switching valve is set to the continuous flow position, the first
Port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing from the water supply passage into the water supply chamber of the main body flows from the space on the main body side through the communication hole of the partition plate and the first port of the switching valve to the outside of the flow path forming wall of the switching valve, It is guided to the continuous flow chamber through the outside of the flow path forming wall. Then, the hot and cold water that has flowed into the continuous flow chamber is ejected from the continuous flow holes of the water spray plate as a continuous flow used as a normal shower.

On the other hand, when the switching valve is set to the pulsating position, the second port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing from the water supply passage into the water supply chamber of the main body passes through the communication hole of the partition plate and the second port of the switching valve from the main body side space to the flow passage in the flow passage forming wall of the switching valve. Be guided. Then, the hot and cold water from the second port is turned into a vortex by the vortex plate disposed in the flow path and flows into the pulsating chamber, and the vortex rotates the impeller in the pulsating chamber. At the same time, when the open part of the impeller faces the pulsating hole of the water spray plate, the hot and cold water is ejected from the pulsating hole to the outside through the opening part, and when the blocking part faces the pulsating hole. Since the blocking portion blocks the jet from the pulsating flow hole, the pulsating flow is intermittently jetted from the pulsating flow hole according to the rotation pitch of the impeller.

[0017]

Embodiments of the present invention will be described below.

FIG. 1 is a sectional view showing a shower head of a switching type shower according to an embodiment of the present invention. (A) shows a state where the switching valve is in a continuous flow position, and (b) shows a pulsating flow through the switching valve. The position is shown. 2A and 2B show a main body of a switching shower according to an embodiment of the present invention, FIG. 2A is a plan view showing an opening side of the main body, and FIG. 2B is a sectional view taken along line AA of FIG. FIG. 3 shows a water spray plate of a switching shower according to an embodiment of the present invention,
(A) is a plan view showing the inner surface side of the water spray plate, (b) is (a)
3B is a cross-sectional view taken along line BB in FIG. 3C, and FIG. 4A and 4B show an impeller of a switchable shower according to an embodiment of the present invention, FIG. 4A is a plan view thereof, FIG. 4B is a side view thereof, and FIG. 4C is a perspective view thereof. 5A and 5B show a fixed ring of a switchable shower according to an embodiment of the present invention, FIG. 5A is a plan view showing an inner surface side thereof, and FIG. 5B is a sectional view taken along line CC of FIG. FIG. 6 shows a partition plate of a switching shower according to an embodiment of the present invention, (a) is a plan view thereof, and (b) is D of (a).
It is a -D line sectional view. FIG. 7 shows a swirl plate of a switching shower according to an embodiment of the present invention, (a) is a plan view thereof, and (b) is a plan view thereof.
Is a sectional view taken along line EE of (a), (c) is a sectional view taken along line FF of (a), and (d) is a perspective view thereof. FIG. 8 shows a switching valve of a switching shower according to an embodiment of the present invention, (a) is a plan view thereof, (b) is a bottom view thereof, and (c) is GG of (a).
A line sectional view, (d) is a perspective view showing the first and second port portions by notching.

In the figure, in the switchable shower of this embodiment, a shower head 12 is provided at the tip of a grip 11 having a water supply passage 11a therein. The main body 20 of the shower head 12 has a hemispherical bowl shape having a circular opening at the lower end in FIG. 1, and has a water supply passage 11 a of the grip 11 therein.
It has a hemispherical water supply chamber R communicating with. A male screw 21 is threaded on the outer peripheral surface of the opening of the main body 20. Further, in the center of the inner surface of the main body 20, a cylindrical shape whose lower end is opened,
A female screw portion 22 in which a screw hole 22a is threaded is integrally formed on the inner peripheral surface. As shown in FIGS. 1 and 2A, four trapezoidal plate-shaped inner ribs 23 are integrally formed on the outer peripheral surface of the female threaded portion 22 at an angle of 90 degrees to form an inner surface of the main body 20. The central portion and the outer periphery of the female screw portion 22 are connected to each other, and the female screw portion 2
2 is reinforced to prevent its displacement and damage. Further, as shown in FIGS. 1 and 2A, on the inner surface of the opening portion of the main body 20, eight outer ribs 24 each having a substantially triangular plate shape except for a position intersecting the extension line of the inner rib 23. Are integrally molded to reinforce the opening of the main body 20 and prevent its displacement and damage. In addition,
The grip 11, the main body 20, the female screw portion 22, the inner rib 23, and the outer rib 24 are integrally formed by injection molding or the like of a resin material such as ABS (acrylonitrile butadiene styrene copolymer).

A partition plate 30 is mounted in the main body 20 in a watertight manner so as to be parallel to the opening. As shown in FIG. 6, the partition plate 30 has a bottomed cylindrical shape in which a support portion 32 is erected orthogonally on the entire outer circumference of a disc-shaped mounting portion 31 and the lower end is open. A circular insertion hole 31 communicating with the screw hole 22a of the female screw portion 22 is provided at the center of the mounting portion 31.
A is formed, and a pair of circular communication holes 31b is formed on both sides of the insertion hole 31a at an angle of 180 degrees. Further, a support flange 33 is formed so as to extend orthogonally over the entire lower end outer peripheral surface of the support portion 32, and an O-ring groove 33 a is formed below the support flange 33. The outer diameter of the support flange 33 is the same as the diameter of the inner peripheral surface of the opening of the main body 20. Then, the partition plate 30 has the insertion hole 31 a in the screw hole 22 of the female screw portion 22.
By communicating with a and screwing the screw 35 into the screw hole 22a through the insertion hole 31a and tightening, the central portion of the upper surface of the mounting portion 31 is brought into contact with and supported by the lower end surface of the inner rib 23, and is also supported. The stepped outer surface of the support flange 33 portion of the portion 32 is supported in contact with the side surface and the lower end surface of the outer rib 24. Further, the O-ring 34 is elastically fitted into the O-ring groove 33a of the support flange 32 and elastically contacts the inner peripheral surface of the main body 20 to prevent water tightness between the inner peripheral surface of the main body 20 and the outer periphery of the partition plate 30. I am maintaining. The partition plate 30 is the main body 20.
The water supply chamber R in the main body side space R1 and the water spray plate side space R2
And the main body side space R1 and the sprinkler plate side space R
2 is communicated with the communication hole 31b. At this time, the both communication holes 31b are arranged so as not to interfere with the inner ribs 23.
The formation position is set. The inner rib 2
The numbers 3 and the outer ribs 24 may be appropriately changed as long as they reliably abut the attachment portion 31 and the support portion 32 and can stably support the partition plate 30. The partition plate 30 is, for example, POM (polyacetal)
Are integrally molded by injection molding or the like.

A water sprinkling plate 40 is attached to the opening of the main body 20 to form the water supply chamber R from the outside. As shown in FIG. 3, the water sprinkling plate 40 has a bottomed cylindrical shape in which an attachment portion 44 is erected orthogonally on the entire outer periphery of the disk-shaped water sprinkling portion 41 and the upper end is open. The sprinkler 41 is
Between the inner peripheral region 42 at the center and the outer peripheral region 43 on the outer side thereof is formed in a stepped shape projecting downward so as to exert a unique design effect. In the inner peripheral region 42 of the water sprinkling section 41, a total of three sets of water sprinkling holes 42a are formed at an angle of 120 degrees with respect to each other. In addition, two sets of continuous flow holes 43a are provided inside and outside the outer peripheral region 43 of the sprinkling section 41.
However, a large number of them are arranged in the circumferential direction. The water sprinkling plate 40 communicates the water supply chamber R of the main body 20 with the outside through a pulsating flow hole 42a and a continuous flow hole 43a. In FIG. 3, the pulsating flow hole 42a has a large-diameter cylindrical shape, the inner continuous flow hole 43a has a small-diameter cylindrical shape, and the outer continuous flow hole 43a has a taper shape in which the diameter decreases downward. However, the shape and the arrangement position thereof may be changed as desired.

A locking flange 45 is formed so as to extend orthogonally over the entire outer peripheral surface of the upper end of the mounting portion 44 of the water sprinkling plate 40. The outer diameter of the locking flange 45 is substantially the same as the diameter of the inner peripheral surface of the opening of the main body 20 and the outer diameter of the support flange 33 of the partition plate 30, so that the sprinkler plate 40 can rotate relative to the main body 20. Is allowed. The upper surface of the locking flange 45 contacts the lower surface of the support flange 33, and
It makes elastic contact with the O-ring 34 in the ring groove 33a. The outer peripheral surface of the mounting portion 44 is formed with a small uneven anti-slip portion 46.

FIG. 5 shows a fixing ring 50 for attaching the water sprinkling plate 40 to the main body 20. The fixing ring 50 has a bottomed cylindrical shape in which a female screw portion 52 is erected orthogonally on the entire outer periphery of a disk-shaped support portion 51 and the upper end is open. A circular hole 51a having substantially the same diameter as the outer diameter of the mounting portion 44 of the water sprinkling plate 40 is formed in the support portion 51, and the inner diameter of the female screw portion 52 is equal to the outer diameter of the opening portion of the main body 20. Diameter female screw 52
a is threaded. Then, the fixing ring 50 is externally fitted to the mounting portion 44 of the sprinkler plate 40 through the circular hole 51a, and the female screw portion 52 is screwed onto the male screw 21 of the main body 20 to be tightened, so that the space between the sprinkler plate 40 and The upper surface of the support portion 51 abuts and locks the lower surface of the locking flange 45 of the water sprinkling plate 40 to prevent the water sprinkling plate 40 from falling off the main body 20 in a state in which the relative rotation of the water sprinkling plate 40 is allowed. At this time, the water sprinkling plate 40 is slidably in contact with the lower surface of the support flange 33 of the partition plate 30 and the O-ring 34 at the upper surface of the engaging flange 45, and is rotatable in the circumferential direction so that the water sprinkling plate 40 can rotate in the circumferential direction. Rib 2
4, the supporting position of the partition plate 30 and the size of the partition plate 30 are set. The locking flange 45 of the sprinkler plate 40
By making elastic contact with the O-ring 34,
Watertightness is maintained between the outer circumference of the water spray plate 40, the outer circumference of the partition plate 30 and the inner circumference of the opening of the main body 20, regardless of whether the water is rotated or not. The fixing ring 50 is integrally molded, for example, by injection molding a resin material such as ABS (acrylonitrile butadiene styrene copolymer).

At the position corresponding to the boundary between the inner peripheral region 42 and the outer peripheral region 43 on the inner surface (upper surface in FIG. 1) of the water sprinkling portion 41 of the water sprinkling plate 40, a partition formed on the cylindrical water sprinkling plate 40. The portion 61 is integrally molded and passes between the continuous flow hole 43a and the pulsating flow hole 42a. The partition part 61 has its upper end opening arranged so as to face the partition plate 30, and has the sprinkling plate side space R2.
A continuous flow chamber R21 communicating with the continuous flow hole 43a,
It is partitioned into a columnar pulsating chamber R22 that communicates with the pulsating hole 43a. The O-ring groove 6 is formed on the outer periphery of the upper end of the partition 61.
1a is formed, and the O-ring 62 is elastically fitted in the O-ring groove 61a. Further, the sprinkler 4 of the sprinkler plate 40
A rotary shaft 63 is integrally formed so as to project upward at the center of the inner surface of 1, and an impeller 70 is attached to the rotary shaft 63.

As shown in FIG. 4, the impeller 70 is formed by integrally molding eight blades 72 extending in the same radial direction as the base 71 or the partition 61 on the outer periphery of a cylindrical base 71. Yes, the mounting hole 7 drilled in the axial direction of the base 71
By inserting the rotary shaft 63 through 1a and mounting it,
It is arranged in the pulsating chamber R22 in the partition 61 so as to be rotatable in a plane parallel to the water spray plate 40. Also, the impeller 70
Between the adjacent four pairs of blades 72 to open the pulsating flow hole 4
2a is an opening portion 73 that opens to the pulsating chamber R22, and a plate-like blocking portion 74 is integrally formed at the lower end between the other adjacent four pairs of blades 72 to pulsate the pulsating hole 42a. Room R
22 is shut off. The impeller 70
The height of the rotary shaft 63 is set slightly lower than the height of the partition 61, while the height of the rotary shaft 63 is set slightly higher than the height of the partition 61.

A switching valve 80 is arranged between the partition plate 30 and the partition portion 61. As shown in FIG. 8, the switching valve 80 includes a base 81, a pair of first ports 81 a and a pair of second ports 81 b that are respectively formed in the base 81.
And a flow path forming wall 82 that is formed integrally with the base 81 so as to hang down
Consists of The base portion 81 has a disc shape having a diameter substantially the same as the inner diameter of the support portion 32 of the first partition plate 30, and is allowed to rotate relative to the partition plate 30. A circular accommodating hole 81c for accommodating the head portion of the screw 35 screwed into the female screw portion 22 is formed at the center of the base portion 81 and has a larger diameter than the head portion of the screw 35. Also, both first ports 81a
Are bored at a position that communicates with the communication hole 31a of the partition plate 30 with an angle of 180 degrees with respect to the accommodation hole 81c of the base 81. Both second ports 81b
Similarly, the receiving holes 81c of the base 81 are separated from each other by 18
The partition plate 30 is provided at a position communicating with the communication hole 31a of the partition plate 30 at an angle of 0 degree. In addition, each first port 81
The a and each second port 81b are arranged at an angle of 90 degrees with respect to each other. An O-ring groove 86 is formed around each first port 81 a and each second port 81 b on the upper surface of the base 81, and the O-ring 8 is formed in each O-ring groove 86.
7 is elastically fitted.

The flow path forming wall 82 is the first port 81.
It is integrally molded on the lower surface of the base 81 so as to form a tubular shape that passes through the inside of a and the outside of the second port 81b. That is, the flow path forming wall 82 has the first and second ports 81a, 8a.
The cylindrical shielding portion 83 is provided at a position intersecting with 1b and has a notch 83a in a portion facing the first and second ports 81a and 81b. Also, the shielding portion 8
Of the three cutouts 83a, a substantially semi-cylindrical first guide portion 84 is integrally formed so as to bulge inside the cutout 83a facing the first port 81a so as to cover the entire cutout 83a. The first port 81a is shielded from the inside of the flow path forming wall 82 and exposed to the continuous flow chamber R21. On the other hand, a substantially semi-cylindrical second guide portion 85 is integrally formed to bulge outside the notch 83a of the shielding portion 83 facing the second port 81b so as to cover the entire notch 83a. Port 81 of 2
b is shielded from the outside of the flow path forming wall 82 and exposed to the pulsating chamber R22. The switching valve 80 is integrally molded, for example, by injection molding a resin material such as POM (polyacetal).

In the switching valve 80, the base 81 is brought into contact with the entire lower surface of the mounting portion 31 of the partition plate 30, and the O-ring 87 is used.
Is elastically contacted with the lower surface of the mounting portion 31 of the partition plate 30, and the intersection of the inner peripheral surface of the lower end of the shielding portion 83 of the flow path forming wall 82 and the lower surfaces of the first and second guide portions 84 and 85 is connected to the partition portion 61. Is arranged between the first and second partition plates 30 and 61 in a state of being elastically contacted with the O ring 62 mounted in the O ring groove 61a at the upper end of the. As a result, the upper surface of the switching valve 80 and the lower surface of the partition plate 30 are separated from each other by the first and second ports 81a and 8a.
Except when 1b communicates with the communication hole 31a, it is water-tightly connected, and the lower end of the switching valve 80 and the upper end opening of the partition 61 are always water-tightly connected. A flow passage communicating with the pulsating flow chamber R22 is formed inside the flow passage forming wall 82, and a flow passage communicating with the continuous flow chamber R21 is formed outside. Further, the shielding portion 83 of the switching valve 80
The lower end is press-fitted into the upper end of the partition portion 61, or is tightly fitted in a relatively non-rotatable manner by key connection, spline fitting, or the like, and the switching valve 80 also integrally rotates with the rotation of the water spray plate 40. It is supposed to do. And the non-slip part 4
By rotating the sprinkling plate 40 via 6, the switching valve 8
No. 0 first port 81a communicates with the communication hole 31a of the partition plate 30 so as to communicate the main body side space R1 with the continuous flow chamber R21, and the second port 81b communicates with the communication hole 31.
The switching valve 80 is freely switchable between a pulsating flow position in which the main body side space R1 communicates with the pulsating flow chamber R22 by communicating with a. In order to give the user a predetermined operation feeling at the continuous flow position and the pulsating flow position, for example, the water spray plate 40 is used.
Concavities and convexities for positioning may be formed on the facing surfaces of the locking flange 45 and the fixing ring 50, respectively.

Inside the flow path forming wall 82 of the switching valve 80, as shown in FIG. 8B, a circular accommodation space R31 having a concave first port 81a portion is formed. In the accommodation space R31, a swirl plate 90 having the same outer shape as that of the accommodation space R31 is press-fitted and densely fitted.
As shown in FIG. 7, the vortex plate 90 is divided into a plate-shaped dividing portion 91 extending in the diametrical direction and a dividing portion 91 extending substantially in the same direction as one diagonal line of the dividing portion 91 as shown in FIG. 7C. A first vortex flow forming portion 92 integrally formed on one side of the portion 91;
A second vortex flow forming portion 93 integrally formed on the other side of the dividing portion 91 so as to extend in substantially the same direction as the other diagonal line of the dividing portion 91.
It has and. The first and second vortex flow forming portions 92,
93 intersect in opposite directions. Further, curved plate-shaped supporting portions 94 extending at the same height as the dividing portions 91 are integrally formed on the outer peripheries of the first and second vortex flow forming portions 92 and 93, respectively. Then, the concave portions of the swirl plate 90 are respectively arranged in the first guide portions 84 of the switching valve 80, and the swirl plate 90 is arranged in the accommodation space R31, and the first and second swirl forming portions 92, 93 are formed. The inclined upper surface of the switch valve 80 faces the notches 83a of the second guide portions 85 communicating with the second ports 81b of the switching valve 80, and the hot and cold water from the second ports 81b are opposed to each other. It is configured to be guided obliquely downward so as to become a direction and converted into a vortex flow, and to be fed to the impeller 70. A support hole 91a into which the upper end of the rotary shaft 63 is inserted is formed on the lower surface of the split portion 91 of the swirl plate 90, and the swirl plate 90 tightly fitted and accommodated in the accommodating space R31 of the switching valve 80 is moved from below by the rotary shaft 63. The support is provided to prevent the accommodation space R31 from falling off.
Further, as described above, the upper end of the impeller 70 is located below the upper end of the second partition 61, and the swirl plate 90 and the impeller 70 are disposed.
It is designed to prevent interference with. In the present embodiment, the vortex plate 90 includes the first and second vortex flow forming portions 92,
The upper surface of 93 is provided with the first and second guide portions 84 of the switching valve 80,
Although the hot and cold water is guided so as to face 85, the inclination directions of the first and second vortex flow forming portions are opposite to those of this embodiment, and their lower surfaces are the first and second of the switching valve. The hot and cold water may be guided so as to face the guide portions 84 and 85. In this case, the hot and cold water can be guided obliquely downwardly and smoothly and efficiently.

Next, a method of assembling the switchable shower of the present embodiment having the above-mentioned structure will be described.

First, the O-ring groove 33a of the partition plate 30 is O-shaped.
The ring 34 is preliminarily inserted and attached, and the partition plate 30 is screwed to the female screw portion 22 of the main body 20 to be fixed so as not to be relatively rotatable. At this time, the partition plate 30 can be easily positioned by bringing the stepped portion on the outer periphery thereof into contact with the outer rib 24 in correspondence. Further, the partition 6 of the sprinkler plate 40
The impeller 70 is rotatably attached to the rotary shaft 63 in the first unit 1, the O ring 62 is mounted in the O ring groove 61a, and the swirl plate 90 is mounted in the accommodation space R31 of the switching valve 80. An O-ring 87 is attached to each O-ring groove 86. Next, the lower end of the flow path forming wall 82 of the switching valve 80 is divided into the partition 6
1. The switching valve 80 and the sprinkler plate 40 are integrally fitted to each other so as not to be rotatable relative to each other. Then, the base 81 of the switching valve 80 is housed in the mounting portion 31 of the partition plate 30, and the sprinkler plate 4
The locking flange 45 of 0 is inserted from the opening of the main body 20 and brought into contact with the support flange 33 of the partition plate 30. At this time,
The switching valve 80 has a base 81 having an outer diameter equal to that of the mounting portion 3 of the partition plate 30.
Since the inner diameter is approximately the same as the inner diameter, the positioning can be easily performed with respect to the partition plate 30. In addition, the sprinkler plate 40,
Since the outer diameter of the locking flange 45 is substantially the same as the inner diameter of the opening portion of the main body 20, it can be easily positioned with respect to the main body 20.

In the assembled state as described above, the outer circumference of the partition plate 30 is kept watertight with the inner circumferential surface of the main body 20 by the O-ring 34, and a sealed main body side space R1 is formed above the outer circumference. Further, the O-ring 34 allows the partition plate 30 to be
While maintaining watertightness between the outer circumference and the outer circumference of the water spray plate 40,
By the O-ring 62 of the partition 61, the partition 61 and the switching valve 8
The watertightness with 0 is maintained, and the partition 61 and the switching valve 80
A closed pulsating flow chamber R22 and a continuous flow chamber R21
Are formed respectively.

Next, the operation of the switching shower of this embodiment will be described.

In the switching type shower of this embodiment, the switching valve 80 is integrally rotated in the same direction by appropriately rotating the sprinkler plate 40 through the anti-slip portion 46, so that the continuous shower shown in FIG. A switching operation is performed between the flow position and the pulsating flow position shown in FIG. 1B, and both first ports 81a or both second ports 8 are operated.
1b selectively communicates with both communication holes 31a of the partition plate 30, and the main body side space R1 of the water supply chamber R and the continuous flow chamber R21 or the pulsating flow chamber R22 selectively communicate with each other.

Then, as shown in FIG. 1A, when the switching valve 80 is set to the continuous flow position, each first port 81a communicates with each communication hole 31a of the partition plate 30. Therefore, the hot / cold water flowing from the water supply passage 11a of the grip 11 into the water supply chamber R of the main body 20 flows from the main body side space R1 to the respective communication holes 31a of the partition plate 30 and the first and second switching valves 80, as shown by the arrows in the figure. 1
Through the port 81a of the switching valve 80, flow into each first guide portion 84 of the switching valve 80, are guided along the first guide portion 84, and form the flow path from the notch 83a of the first guide portion 84. It is guided to the continuous flow chamber R21 through the outside of the wall 82. Then, the hot and cold water flowing into the continuous flow chamber R21 is jetted from the continuous flow hole 42a of the water spray plate 40 as a continuous flow used as a normal shower.

On the other hand, as shown in FIG. 1 (b), the switching valve 8
When 0 is the pulsating flow position, each second port 81b communicates with each communication hole 31a of the partition plate 30. Therefore, grip 1
The hot and cold water flowing into the water supply chamber R of the main body 20 from the first water supply passage 11a is connected to the communication holes 31a of the partition plate 30 and the second ports of the switching valve 80 from the main body side space R1 as shown by the arrows in the figure. Each second guide portion 85 of the switching valve 80 is passed through 81b.
It flows into the inside, is guided along the second guide portion 85, and is guided from the notch 83 a of the second guide portion 85 to the flow passage in the flow passage forming wall 82. And one of the second ports 81
The hot and cold water from b and the second guide portion 85 laterally collide with the inclined upper surface of the first vortex flow forming portion 92 of the vortex plate 90 arranged in the flow path, and along the upper surface of the vortex flow forming portion 92. And is guided obliquely downward to flow into the pulsating chamber R22 in the partition 61. At the same time, the hot and cold water from the other second port 81b and the second guide portion 85 collides from the side against the inclined upper surface of the second vortex flow forming portion 93 of the vortex flow plate 90 arranged in the flow path. The gas is guided obliquely downward along the upper surface of the vortex flow forming portion 93 and flows into the pulsating flow chamber R22 in the partition portion 61. At this time, the hot and cold water flow-guided obliquely downward to each other by the first and second vortex flow forming portions 92 and 93 is pulsating chamber R2.
2 as a swirl flow, and the swirl flow collides with the side surface of the blade 72 of the impeller 70 in the pulsating chamber R22 and urges the impeller 70 in a substantially circumferential direction, and the impeller via the rotary shaft 63. Rotate 70. At the same time, the hot and cold water flows through the opening 73 of the impeller 70.
When it is opposed to the pulsating flow hole 42a of the water spray plate 40, it is jetted out from the pulsating flow hole 42a through the opening 73, and when the blocking part 74 is facing the pulsating flow hole 42a, the blocking part 74 As a result, the ejection from the pulsating flow hole 42a is blocked, so that the pulsating flow is intermittently ejected from the pulsating flow hole 42a according to the rotation pitch of the impeller 70.

As described above, the switchable shower of the above embodiment has a bowl-like shape having a circular opening at one end, and the main body 20 having therein the water supply chamber R communicating with the water supply passage 11a, and the opening of the main body 20. And a continuous flow hole 43a and a pulsating flow hole 42a, which are rotatably attached to the water supply chamber R to form the water supply chamber R and which connect the water supply chamber R and the outside.
A bottomed cylindrical sprinkler plate 40 respectively provided on the outer peripheral portion and the central portion of the sprinkler portion 41 is watertightly attached to the main body 20 so as to be substantially parallel to the opening, and the water supply chamber R is defined as a main body side space R1. A partition plate 30 having a bottomed cylindrical shape, which is partitioned into a water spray plate side space R2 and has a base 31 with a communication hole 31a that connects the main body side space R1 and the water spray plate side space R2.
And the sprinkler plate 40 is integrally formed with the sprinkler plate 40 so as to have a cylindrical shape passing between the continuous flow hole 43a and the pulsating flow hole 42a. A continuous flow chamber R21 communicating R2 with the continuous flow hole 43a and a pulsating flow chamber R22 communicating with the pulsating flow hole 42a.
And a pulsating chamber R22 in the partition 61 so as to be rotatable in a plane substantially parallel to the sprinkler plate 40.
A plurality of blades 72, which are disposed by being inserted into the rotary shaft 63 of the partition portion 61 and extend in the substantially radial direction of the partition portion 61, and a predetermined pair of adjacent blades 72, which open to open the pulsating flow hole 42a. An impeller 70 having a part 73 and a blocking part 74 that is formed between another predetermined pair of adjacent blades 72 and blocks the pulsating flow holes 42a, and is disposed between the partition plate 30 and the partition part 61. And a disk-shaped base portion 81 that comes into contact with the partition plate 30.
And a first port 81a and a second port 81b which are formed at a position communicating with the communication hole 31a of the base 81.
And the base 81 so as to form a tubular shape that passes inside the first port 81a and outside the second port 81b.
And a port 81a, which is integrally formed with the flow path forming wall 82 for water-tightly connecting the tip to the tip opening of the partition 61.
The first port 8 is composed of first and second guide portions 84 and 85 which are arranged to face 81b via a notch 83a.
1a communicates with the communication hole 31a to communicate the main body side space R1 and the continuous flow chamber R21 with a continuous flow position, and the second port 81b communicates with the communication hole 31a to pulsate with the main body side space R1. A switching valve 80 that can be freely switched between a pulsating flow position that communicates with the chamber R22 and a flow passage forming wall 82 that is disposed inside the second port 81b to convert hot and cold water into a vortex flow. And a swirl plate 90 for feeding to the impeller 80.

Therefore, in the above embodiment, by appropriately rotating the sprinkler plate 40, the switching valve 80 integrally rotates in the same direction to switch between the continuous flow position and the pulsating flow position. Port 81a or both second ports 81b
, Selectively communicating with both communication holes 31a of the partition plate 30,
The body-side space R1 of the water supply chamber R and the continuous flow chamber R21 or the pulsating flow chamber R22 selectively communicate with each other.

When the switching valve 80 is set to the continuous flow position, each first port 81a is connected to each communication hole 31 of the partition plate 30.
communicate with a. Therefore, the hot / cold water flowing from the water supply passage 11a into the water supply chamber R of the main body 20 passes from the main body side space R1 to the communication holes 31a of the partition plate 30 and the first ports 81a of the switching valve 80, and then to the switching valve 80. Of the flow passage forming wall 82, and passes through the outside of the flow passage forming wall 82 to form the continuous flow chamber R21.
Be led to. Then, the hot and cold water flowing into the continuous flow chamber R21 is jetted from the continuous flow hole 43a of the water spray plate 40 as a continuous flow used as a normal shower.

On the other hand, when the switching valve 80 is set to the pulsating position, each second port 81b communicates with each communication hole 31a of the partition plate 30. Therefore, from the water supply passage 11a to the water supply chamber R of the main body 20.
The hot / cold water flowing into the main body side space R1 communicates with each communication hole 31a of the partition plate 30 and each second port 81b of the switching valve 80.
Through the flow path forming wall 82 of the switching valve 80. And the hot and cold water from the second port 81b is
It is made into a vortex by the vortex plate 90 arranged in the flow path and flows into the pulsating flow chamber R22, and the vortex causes the impeller 70 in the pulsating flow chamber R22 to rotate. At the same time, when the open part 73 of the impeller 70 faces the pulsating hole 42a of the water spray plate 40, the hot and cold water is ejected from the pulsating hole 42a to the outside through the opening part 73 and the blocking part 74 is released. When facing the pulsating flow hole 42a, the jetting from the pulsating flow hole 42a is blocked by the blocking portion 74, so that the pulsating flow is intermittently jetted from the pulsating flow hole 42a in accordance with the rotation pitch of the impeller 70. To be done.

As a result, at the pulsating position of the switching valve 80, the amount of hot and cold water flowing into the flow passage in the flow passage forming wall 82 from the second port 81b becomes large according to the cross-sectional area of the flow passage forming wall 82. Since a large amount of such hot and cold water is swirled by the swirl plate 90 to directly urge and rotate the impeller 70 in the pulsating flow chamber R22, the hot and cold water from the water supply passage 11a may be in a low flow rate range. Thus, the impeller 70 can be easily and smoothly rotated in a stable manner, and the amount of pulsating flow required to obtain the massage shower effect can be reliably provided. Also, the impeller 70
It is not necessary to form a complicated hot and cold water flow path to rotate the device, and the number of parts for that is not necessary, so the entire device has a simple and compact structure, and the entire device is downsized. In addition, the manufacturing cost can be reduced.

By the way, the main body 20 of the present invention may have a water supply chamber R having one end opened like an arm and communicating with the water supply passage 11a of the grip 11, and may have a hemispherical bowl shape such as a bottomed cylindrical bowl shape. Other shapes may be used. The water sprinkling plate 40 is attached to the opening of the main body 20 to form the water supply chamber R, and
It suffices to have a continuous flow hole 43a and a pulsating flow hole 42a that connect the water supply chamber R and the outside, and the inner peripheral region 42 and the outer peripheral region 43.
Other configurations, such as a configuration in which no step is provided between them, or a substantially disc shape without a bottomed cylindrical shape, may be adopted. Further, although the water sprinkling plate 40 of the above-described embodiment is rotatably attached to the main body 20 via the fixing ring 50, the fixing ring 50 may be omitted and the sprinkling plate 40 may be directly rotatably attached to the main body 20. Good. Further, the non-slip portion 46 for rotating the water sprinkling plate 40 is not limited to the one in the above embodiment, and for example, as shown in FIG.
It may be.

The partition plate 30 divides the water supply chamber R into a main body side space R1 and a sprinkler plate side space R2, and at least one communication hole that connects the main body side space R1 and the sprinkler plate side space R2. It suffices to have 31a, and the shape thereof may be a disk shape without having a bottomed cylindrical shape, or the shape of the communication hole 31a may be an elliptical shape or a square shape, or another configuration. Furthermore, the partition part 61 divides the water spray plate side space R2 into a continuous flow chamber R21 that communicates with the continuous flow hole 43a and a pulsating flow chamber R22 that communicates with the pulsating flow hole 42a, and the impeller 70 inside. Other structures may be used as long as they are rotatably accommodated.
Further, the impeller 70 is disposed in the pulsating chamber R22 so as to be rotatable in a plane substantially parallel to the pulsating hole 42a of the water spray plate 40, and the opening 73 and the pulsating hole that open the pulsating hole 42a. 42
As long as it has a blocking section 74 for blocking a,
The number of blades 72 can be changed, and the opening portion 73 or the blocking portion 7 can be changed.
Other configurations, such as changing the number or position of four or changing the shape of the blade 72, may be used.

Further, the switching valve 80 is arranged between the partition plate 30 and the partition portion 61, and also has the first port 81a and the second port 81b which selectively communicate with the communication hole 31a.
A continuous flow position where the first port 81a communicates with the communication hole 31a to communicate the main body side space R1 and the continuous flow chamber R21, and the second port 81b communicates with the communication hole 31a to the main body side. It suffices that the switching operation can be freely performed between the pulsating flow position that communicates the space R1 and the pulsating flow chamber R22, and for example, while omitting the flow path forming wall 82 and the first and second guide portions 84 and 85, The height of the partition portion 61 is extended to the base portion 81 so as to also serve as the flow path forming wall 82, and the first port 81a is connected to the partition portion 61.
Directly from the outside to the continuous flow chamber R21, the second port 81
b is directly communicated with the pulsating chamber R22 from the inside of the partition 61,
Other configurations may be used. Also, the number and arrangement position of the first port 81a and the second port 81b may be appropriately changed according to the number and arrangement position of the communication holes 31a of the partition plate 30.

The swirl plate 90 is connected to the second valve of the switching valve 80.
Is disposed between the port 81b of the impeller 70 and the impeller 70, and the hot and cold water from the second port 81b is converted into a vortex flow to impeller 70.
Any other structure may be used as long as it is sent to the.

[0046]

As described above, in the switchable shower according to the invention of claim 1, one end is opened like a bowl, and the main body is provided with the water supply passage and the water supply chamber communicating with the water supply passage, and the main body. Attached to the opening of the main body to form the water supply chamber together with the main body, the water supply plate having a continuous flow hole and a pulsating hole that communicate the water supply chamber with the outside, and the water supply chamber to the main body side space and the water spray plate side space. And a partition plate having a communication hole that communicates the main body side space and the sprinkler plate side space, and a continuous flow chamber and a pulsating flow hole that communicate the sprinkler plate side space with the continuous flow hole. A partition formed on a water spray plate that is divided into a pulsating flow chamber and an opening that is arranged in the pulsating chamber and that opens the pulsating flow hole of the water spraying plate by rotation of the water spraying plate and blocks the pulsating flow hole. And an impeller having a shutoff section for Between the partition portion formed in a plate,
A switching valve having a first port and a second port selectively communicating with the communication hole is arranged, and the first port communicates with the communication hole to communicate the main body side space with the continuous flow chamber. The switching valve is switchable between a continuous flow position and a pulsating flow position where the main body side space and the pulsating flow chamber communicate with each other by communicating the second port with the communication hole. A swirl plate is arranged between the port and the impeller so that the hot / cold water from the second port is converted into a swirl flow and sent to the impeller.

Therefore, when the switching valve is switched between the continuous flow position and the pulsating flow position, the first port or the second port selectively communicates with the communication hole of the partition plate, and the main body side of the water supply chamber. The space selectively communicates with the continuous flow chamber or the pulsating flow chamber.

That is, when the switching valve is set to the continuous flow position, the first
Port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing from the water supply passage into the water supply chamber of the main body is guided from the main body side space to the continuous flow chamber through the communication hole of the partition plate and the first port of the switching valve. Then, the hot and cold water that has flowed into the continuous flow chamber is ejected from the continuous flow holes of the water spray plate as a continuous flow used as a normal shower.

On the other hand, when the switching valve is set to the pulsating position, the second port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing into the water supply chamber of the main body from the water supply passage is guided from the main body side space to the swirl plate through the communication hole of the partition plate and the second port of the switching valve. The hot and cold water swirled by the swirl plate flows into the pulsating chamber, and the swirling flow collides with the impeller in the pulsating chamber to rotate the impeller. At the same time, when the open part of the impeller faces the pulsating hole of the water spray plate, the hot and cold water is ejected from the pulsating hole to the outside through the opening part, and when the blocking part faces the pulsating hole. Since the blocking portion blocks the jet from the pulsating flow hole, the pulsating flow is intermittently jetted from the pulsating flow hole according to the rotation pitch of the impeller.

As a result, at the pulsating flow position of the switching valve, the hot and cold water flowing from the second port is swirled by the swirl plate to directly energize and rotate the impeller in the pulsating flow chamber.
The impeller can be rotated easily and smoothly and stably, and the pulsating flow necessary for obtaining the massage shower effect can be reliably provided. Also, to rotate the impeller,
It is not necessary to form a complicated hot / cold water flow path as in the past, and the number of parts for that is small, so the entire device has a simple and compact structure, and the entire device can be miniaturized and its manufacturing cost can be reduced. Can also be reduced.

According to a second aspect of the present invention, in the first aspect of the present invention, in the first aspect of the present invention, the switching valve is in contact with substantially the entire partition plate, and a base portion having the first and second ports is provided. A flow that is integrally formed with the base so as to form a tubular shape that passes through the inside of the first port and the outside of the second port, and has its tip watertightly connected to the partition formed on the sprinkler plate. It is configured by a passage forming wall, and the vortex plate is arranged inside the passage forming wall.

Therefore, the second valve is formed in the flow path forming wall of the switching valve.
A flow path from the port to the pulsating chamber is formed, and the swirl plate is arranged in the flow path. Therefore, the hot / cold water from the first port or the second port of the switching valve is reliably and smoothly guided to the continuous flow chamber or the swirl plate or the pulsating flow chamber along the flow passage forming wall.

As a result, at the pulsating flow position of the switching valve, the amount of hot and cold water flowing into the flow passage in the flow passage forming wall from the second port becomes large in accordance with the cross-sectional area of the flow passage forming wall. The hot and cold water is swirled by the swirl plate to directly energize and rotate the impeller in the pulsating flow chamber.Therefore, even when the hot and cold water from the water supply channel is in a low flow rate range, the impeller can be operated easily and smoothly. It is possible to reliably provide a sufficient amount of pulsating flow for stable massage and a massage shower effect.

A switchable shower according to a third aspect of the present invention has a bowl-like shape having a circular opening at one end, and has a main body having therein a water supply chamber communicating with a water supply passage, and is attached to the opening of the main body. A water-spraying plate that forms a water supply chamber and has continuous flow holes and pulsating flow holes that connect the water supply chamber and the outside at the outer peripheral portion and the central portion, respectively, and is watertight so as to be substantially parallel to the opening with respect to the main body. A partition plate that is attached and divides the water supply chamber into a main body side space and a sprinkler plate side space, and has a communication hole that communicates the main body side space and the sprinkler plate side space, the continuous flow hole and the pulsating flow hole. A continuous flow chamber that is integrally formed with the water spray plate so as to form a tubular shape that passes through the space, has an opening at its tip facing the partition plate, and the water spray plate side space communicates with the continuous flow hole, A dispersion that divides into a pulsating flow chamber communicating with the pulsating flow hole. The partition formed on the plate and the partition formed on the water spray plate are arranged in the pulsating chamber in the partition formed on the water spray plate so as to be rotatable in a plane substantially parallel to the water spray plate. A plurality of blades extending in a substantially radial direction, an open portion formed between adjacent predetermined pairs of blades to open the pulsating flow hole, and the pulsating flow hole formed between other adjacent predetermined blades. An impeller having a shut-off portion for shutting off, a base portion abutting the partition plate between the first partition plate and the partition portion formed on the sprinkler plate,
A first hole provided at a position communicating with the communication hole of the base portion.
Partition formed integrally with the base so as to form a cylindrical shape that passes through the first port and the second port, and the inside of the first port and the outside of the second port, and the tip thereof is formed on the sprinkler plate. A switching valve including a flow path forming wall that is watertightly connected to the tip end opening of the portion is provided, and the switching valve connects the first port with the communication hole to connect the main body side space with the continuous flow chamber. A swirl plate is disposed inside the flow passage forming wall so that it can be switched between a position and a pulsating flow position where the main body side space and the pulsating flow chamber communicate with each other by communicating the second port with the communication hole. Then, the hot / cold water from the second port is converted into a vortex flow and fed to the impeller.

Therefore, when the switching valve is operated to switch between the continuous flow position and the pulsating flow position, the first port or the second port selectively communicates with the communication hole of the partition plate and the main body side of the water supply chamber. The space selectively communicates with the continuous flow chamber or the pulsating flow chamber.

That is, when the switching valve is set to the continuous flow position, the first
Port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing from the water supply passage into the water supply chamber of the main body flows from the space on the main body side through the communication hole of the partition plate and the first port of the switching valve to the outside of the flow path forming wall of the switching valve, It is guided to the continuous flow chamber through the outside of the flow path forming wall. Then, the hot and cold water that has flowed into the continuous flow chamber is ejected from the continuous flow holes of the water spray plate as a continuous flow used as a normal shower.

On the other hand, when the switching valve is set to the pulsating position, the second port communicates with the communication hole of the partition plate. Therefore, the hot and cold water flowing from the water supply passage into the water supply chamber of the main body passes through the communication hole of the partition plate and the second port of the switching valve from the main body side space to the flow passage in the flow passage forming wall of the switching valve. Be guided. Then, the hot and cold water from the second port is turned into a vortex by the vortex plate disposed in the flow path and flows into the pulsating chamber, and the vortex rotates the impeller in the pulsating chamber. At the same time, when the open part of the impeller faces the pulsating hole of the water spray plate, the hot and cold water is ejected from the pulsating hole to the outside through the opening part, and when the blocking part faces the pulsating hole. Since the blocking portion blocks the jet from the pulsating flow hole, the pulsating flow is intermittently jetted from the pulsating flow hole according to the rotation pitch of the impeller.

As a result, at the pulsating flow position of the switching valve, the amount of hot and cold water flowing into the flow passage in the flow passage forming wall from the second port becomes large in accordance with the cross-sectional area of the flow passage forming wall, and such a large amount. The hot and cold water is swirled by the swirl plate to directly energize and rotate the impeller in the pulsating flow chamber.Therefore, even when the hot and cold water from the water supply channel is in a low flow rate range, the impeller can be operated easily and smoothly. It is possible to reliably provide a sufficient amount of pulsating flow for stable massage and a massage shower effect. In addition, since it is not necessary to form a complicated hot and cold water flow path for rotating the impeller, which requires a small number of parts for the same, the entire device has a simple and compact configuration, The overall size can be reduced and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view showing a shower head of a switching type shower according to an embodiment of the present invention, (a) showing a state where the switching valve is in a continuous flow position, and (b) showing a switching valve. The flow position is shown.

FIG. 2 shows a main body of a switchable shower according to one embodiment of the present invention, (a) is a plan view showing an opening side of the main body, and (b).
FIG. 7A is a sectional view taken along line AA of FIG.

FIG. 3 shows a water spray plate of a switching shower according to an embodiment of the present invention, (a) is a plan view showing an inner surface side of the water spray plate,
(B) is the BB sectional drawing of (a), (c) is a top view which shows the outer surface side of a water spray plate.

FIG. 4 shows an impeller of a switching shower according to an embodiment of the present invention, (a) is a plan view thereof, (b) is a side view thereof, and (c) is a perspective view thereof.

FIG. 5 shows a fixed ring of a switching shower according to an embodiment of the present invention, (a) is a plan view showing the inner surface side thereof,
(B) is the CC sectional view taken on the line of (a).

FIG. 6 shows a partition plate of a switching shower according to an embodiment of the present invention, (a) is a plan view thereof, and (b) is a D of (a).
It is a -D line sectional view.

FIG. 7 shows a swirl plate of a switching shower according to an embodiment of the present invention, (a) is a plan view thereof, and (b) is E of (a).
-E line sectional view, (c) is the FF line sectional view of (a),
(D) is the perspective view.

FIG. 8 shows a switching valve of a switching shower according to an embodiment of the present invention, in which (a) is a plan view thereof, (b) is a bottom view thereof, and (c) is GG of (a). A line sectional view, (d) is a perspective view showing the first and second port portions by notching.

9A and 9B show another example of the water spray plate of the switching shower of the present invention, FIG. 9A is a plan view thereof, and FIG. 9B is a side view thereof.

FIG. 10 is a cross-sectional view showing a conventional switchable shower.

[Explanation of symbols]

 11a Water supply channel 20 Main body 30 Partition plate 31a Communication hole 40 Sprinkler plate 43a Continuous flow hole 42a Pulsating flow hole 61 Partition part 70 Impeller 72 Blade 73 Open part 74 Blocking part 80 Switching valve 81 Base part 81a Second port 81b Second Port 82 Flow path forming wall 90 Vortex plate R Water supply chamber R1 Main body side space R2 Sprinkler plate side space R21 Continuous flow chamber R22 Pulsating flow chamber

Claims (3)

[Claims] 1. A body having a bowl-shaped opening at one end, the body having a water supply passage and a water supply chamber communicating with the water supply passage, and the main body attached to the opening of the body to form the water supply chamber together with the body. A sprinkler plate having a continuous flow hole and a pulsating flow hole communicating the water supply chamber and the outside, and partitioning the water supply chamber into a main body side space and a sprinkler plate side space, the main body side space and the sprinkler plate side space A partition plate having a communication hole that communicates with each other, and a partition portion formed on the water spray plate that partitions the water spray plate side space into a continuous flow chamber that communicates with the continuous flow hole and a pulsation chamber that communicates with the pulsation hole. An impeller having an opening portion that is disposed in the pulsating chamber and that opens the pulsating hole of the sprinkler plate by rotation of the sprinkling plate and a blocking portion that blocks the pulsating hole; and the partition plate and the sprinkling plate. A first member arranged between the formed partition and selectively communicating with the communication hole. And a second port, the first port is in communication with the communication hole, and the continuous flow position is in communication between the main body side space and the continuous flow chamber, and the second port is in communication with the communication hole. And a switching valve that is switchable between a pulsating flow position that communicates the main body side space and the pulsating flow chamber, and is disposed between the second port of the switching valve and the impeller, and Switchable shower comprising: a swirl plate that converts hot and cold water from the port of FIG. 2. The switching valve abuts substantially the entire partition plate, and has a base portion having the first and second ports, an inner side of the first port and an outer side of the second port. Integrally formed with the base so as to form a tubular shape that passes through,
2. The switchable shower according to claim 1, wherein a flow passage forming wall is connected at a tip thereof in a watertight manner to a partition formed in the water spray plate, and the swirl plate is disposed inside the flow passage forming wall. 3. A bowl shape having a circular opening at one end,
A main body having a water supply chamber that communicates with a water supply passage inside, a water supply chamber that is attached to an opening of the main body to form the water supply chamber, and a continuous flow hole and a pulsating flow hole that communicate the water supply chamber and the outside with an outer peripheral portion and Water-sprinkling plates respectively provided in the central portion and water-tightly attached to the main body so as to be substantially parallel to the opening, partition the water supply chamber into a main body-side space and a sprinkler plate-side space, and the main body-side space and the sprinkler. A partition plate having a communication hole that communicates with the plate-side space, and a partition plate integrally formed with the water spray plate so as to form a tubular shape that passes between the continuous flow hole and the pulsating flow hole, and the opening at the tip thereof faces the partition plate. A partition part formed in the water spray plate that divides the water spray plate side space into a continuous flow chamber that communicates with the continuous flow hole and a pulsating flow chamber that communicates with the pulsating hole; and the water spray plate. It is formed on the sprinkler plate so that it can rotate in a plane substantially parallel to The plurality of blades arranged in the pulsating chamber in the partition and extending substantially in the radial direction of the partition formed in the water spray plate, and the blade formed between the predetermined pair of adjacent blades to open the pulsating hole. An impeller having an open part and a blocking part for blocking the pulsating flow hole formed between another predetermined pair of adjacent blades, and arranged between the partition plate and the partition part formed on the sprinkler plate. And a first port and a second port formed at a position communicating with the communication hole of the base, the base being in contact with the partition plate, the inside of the first port and the second port. Is formed integrally with the base portion so as to form a tubular shape that passes through the outside of the base plate, and is formed of a flow passage forming wall that watertightly connects the tip end to the tip end opening of the partition portion formed in the water sprinkling plate, and the first port is A continuous flow position for communicating the main body side space and the continuous flow chamber by communicating with the communication hole; A switching valve that is switchable between a pulsating flow position that communicates the main body side space and the pulsating flow chamber by communicating the second port with the communication hole, and is arranged inside the flow path forming wall. , A swirl plate that converts hot and cold water from the second port into a swirl flow and sends the swirl flow to the impeller.