JPH0838952A - 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 plate 61. A first port 81a and second port 81b of the changeover valve are selectively aligned to communicate a main body side space R1 to a continuous flow chamber R21. The second port 81b is aligned to the communicating hole to communicate the main body side space R1 to a pulsation chamber R22. Further, the flow passage forming wall 82 of the changeover valve is provided with a guiding part 85 and a notch for forming vortex flow, by which the hot and cold water from the second port 81b is converted into the vortex flow. The vortex flow is 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.
FIG. 4 is a sectional view of a conventional switchable shower.

As shown in FIG. 8, in the switchable showers disclosed in these publications, a water supply passage 103 of a hand grip 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 communicating with the above is formed. Further, a dish-shaped sprinkling plate 140 having an upper opening is rotatably attached to the lower opening of the main body 104 to cover the opening from the outside. A concave water chamber 1 is provided at the center of the sprinkler plate 140.
53 is formed, and a large number of water spray holes 145 for ordinary shower jetting are provided on the outer peripheral portion. Body 1
A sheet plate 114 is fixedly installed in a partition shape inside the water sprinkling plate 140 of the water chamber 105 of No. 04. The water hole 12 is provided at a position eccentric from the center of the seat plate 114.
0 is provided. In addition, sprinkler plate and seat plate 1
A switching valve 126 is fixedly installed between the seat plate 114 and the valve 14, and is in sliding contact with the seat plate 114. The switching valve 126 has an opening 133 that is aligned with the water passage hole 120 of the seat plate 114. Furthermore, the sprinkler plate 140
On the discharge side of the concave water chamber 153, a cap 170 having a fountain hole 174 for spraying a massage shower is attached, the concave water chamber 153 is covered from the outside, and an impeller 156 is arranged in the concave water chamber 153. Has been done. And
The sprinkling plates 140 are equidistantly spaced and have substantially rhombic inlets 149.
Is formed so as to penetrate, and hot and cold water is caused to flow into the concave water chamber 153 in a spiral shape. 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 type 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 is aligned 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 56 is rotated by the hot / cold water flowing into the concave water chamber 153 of the water spray plate 140 from the flow passage, the number of components 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 with the outside; 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 flow chamber, and an opening and a pulsating flow hole that are rotatably arranged in the pulsating flow chamber in the plane of the water spraying plate and that open the pulsating flow hole. And an impeller having a shut-off portion for shutting off the partition. Between the first port and the second port selectively communicating with the communication hole, and between the second port and the pulsating chamber between the partition and the partition formed in the water spray plate, A switching valve having guide means for guiding the hot and cold water from the second port to the impeller in the substantially same direction as the rotation direction of the impeller is arranged, and the first port is communicated with the communication hole. A continuous flow position for communicating the main body side space with the continuous flow chamber, and a pulsating flow position for communicating the second port with the communication hole for communicating the main body side space with the pulsating flow chamber. The switching valve can be freely switched between them.

According to a second aspect of the present invention, in the first aspect of the present invention, the switching valve further abuts substantially the entire partition plate, and the first and second switching valves are provided.
A base portion having a port, and a base portion integrally formed with the base portion so as to pass through the inside of the first port and the outside of the second port, and its tip is watertightly connected to the partition portion. The guide means has a passage forming wall, and a pair of the communication hole of the partition plate and the second port of the switching valve are formed at an angle of approximately 180 degrees with respect to the rotation center of the impeller. Has a bottomed cylindrical shape integrally formed with the flow passage forming wall and a position facing the respective second ports inside the flow passage forming wall, and has substantially the same circumferential direction as the rotation direction of the impeller. The guide portion has a notch that opens in the direction.

According to a third aspect of the present invention, there is provided a switchable shower having a bowl-like shape having a circular opening, a main body having therein a water supply chamber communicating with a water supply passage, and the water supply chamber attached to the opening of the main body. And a water spray plate having a continuous flow hole and a pulsating flow hole in the outer peripheral portion and the central portion, respectively, which connect the water supply chamber and the outside, and are watertightly attached to the main body so as to be substantially parallel to the opening. A partition plate in which the water supply chamber is divided into a main body side space and a sprinkler plate side space, and a pair of communication holes that communicate the main body side space and the sprinkler plate side space are arranged at an angle of approximately 180 degrees with respect to each other. And the water spray plate is 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 of the water discharge plate is arranged to face the partition plate, and A continuous flow chamber communicating with the flow hole, and the pulsating flow And a partition part that is partitioned into a pulsating chamber that communicates with the pulsating flow chamber, and a plurality of partitions that are arranged in the pulsating chamber in the partition part so as to be rotatable in a plane substantially parallel to the water spray plate and that extend in a substantially radial direction of the partition part. Blades, an opening portion formed between adjacent predetermined pairs of blades to open the pulsating flow hole, and a blocking portion formed between other adjacent predetermined pairs of blades to block the pulsation flow hole. And a base portion that is in contact with the partition plate and a position that communicates with the communication hole of the base portion between the partition plate and the partition portion.
The pair of first ports that are formed at an angle of 80 degrees and the positions that communicate with the communication holes of the base are approximately 1 mm apart from each other.
A pair of second ports drilled at an angle of 80 degrees, and integrally formed on 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,
A switching valve composed of a flow path forming wall whose tip is watertightly connected to the tip opening of the partition is arranged, and the first port is communicated 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 position where the second port communicates with the communication hole to communicate the main body side space and the pulsating chamber, and the flow passage forming wall A bottomed cylindrical guide portion is integrally formed at a position facing each second port inside, and a notch is formed on the peripheral surface of the guide portion so as to open in substantially the same direction as the rotation direction of the impeller, The hot and cold water from the second port is guided in the substantially same direction as the rotating direction of the impeller and is fed to the impeller.

[0010]

In the invention of claim 1, the first port or the second port is selectively aligned with the communication hole of the partition plate by switching the switching valve between the continuous flow position and the pulsating flow position. Then, 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
The port of is aligned 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 in the pulsating position, the second port is aligned 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 guide means through the communication hole of the partition plate and the second port of the switching valve, and the guide means rotates the impeller. It is fed to the impeller while being guided in the same direction as the direction. The hot and cold water becomes a vortex flow and flows into the pulsating chamber, and the vortex 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, since the flow passage from the second port to the pulsating chamber is formed in the flow passage forming wall of the switching valve, the first port or the second port of the switching valve is formed. The hot and cold water from the port is reliably and smoothly guided to the continuous flow chamber or the pulsating flow chamber along the flow path forming wall. Further, the second port and the guide portion are approximately 1 to each other with respect to the center of rotation of the impeller.
Since the hot and cold water is provided at an angle of 80 degrees, the hot and cold water flows from the notch to the flow passage in the flow passage forming wall in the opposite direction from the position facing 180 degrees, that is, in the same direction as the rotation direction of the impeller. Delivered effectively.

According to the third aspect of the present invention, the first switching valve is switched between the continuous flow position and the pulsating flow position.
Port or the second port selectively aligns with the communication hole of the partition plate to selectively communicate the main body side space of the water supply chamber 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
The port of is aligned 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 in the pulsating position, the second port is aligned 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. At this time, the second
The hot and cold water from the port is sent to the flow path in the substantially same direction as the rotation direction of the impeller by the notch of the guide part.
It is made into a vortex and flows into the pulsating chamber, and the vortex causes the impeller inside the pulsating chamber to rotate. 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 switching valve 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 bottom view thereof, (c) is a sectional view taken along line EE of (a),
(D) is a perspective view showing the first and second port portions by cutting away.

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 that is aligned 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 aligning 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 shield 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).

A cylindrical partition 61 is integrally formed at a 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 spray portion 41 of the water spray plate 40.
It 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 the space R2 on the water spray plate side is defined by the continuous flow hole 43.
It is divided into a continuous flow chamber R21 communicating with a and a columnar flow chamber R22 communicating with the pulsating hole 43a. An O-ring groove 61a is formed on the outer periphery of the upper end of the partition portion 61, and an O-ring 62 is elastically fitted in the O-ring groove 61a. Further, a rotating shaft 63 is integrally formed by projecting upward at the center of the inner surface of the water spraying portion 41 of the water spraying plate 40, and an impeller 70 is attached to the rotating 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. 7, the switching valve 80 includes a base 81, a pair of first ports 81 a and a pair of second ports 81 b, which are formed in the base 81, respectively.
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 disk shape having substantially the same diameter as the inner diameter of the support portion 32 of the partition plate 30, and is allowed to rotate relative to the partition plate 30. At the center of the base 81, the screw 3
5 has a diameter larger than that of the head portion and has a circular accommodation hole 81c for accommodating the head portion of the screw 35 screwed into the female screw portion 22. Further, both the first ports 81a are formed at a position aligned 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 are also the same.
The base 81 is formed in a position aligned with the communication hole 31a of the partition plate 30 at an angle of 180 degrees with respect to the accommodation hole 81c. The first ports 81a and the second ports 81b are arranged at an angle of 90 degrees with respect to each other. Each first port 81a on the upper surface of the base 81
And an O-ring groove 86 around each second port 81b.
The O-ring 87 is elastically fitted in each O-ring groove 86.

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. Further, each of the second guide portions 85 is extended in the circumferential direction up to the flow passage in the flow passage forming wall 82, and the peripheral surface thereof is
A notch 85a for forming a vortex is formed which opens in a direction substantially the same as the rotating direction of the impeller. The pair of vortex-forming notches 85a form a quarter arc shape in a plane, and
The hot and cold water from the notches 85a for forming both vortex flows are opened 180 degrees opposite to each other and flow in the opposite directions by approximately 180 degrees as shown by the arrow in FIG. It is adapted to be fed from the flow path of the forming wall 82 to the impeller in the pulsating flow R22. The switching valve 80 is, for example,
The resin material such as POM (polyacetal) is integrally molded by injection molding or the like.

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 partition parts 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 water-tightly connected, except when the first and second ports 81a and 81b communicate with the communication hole 31a. The lower end of the partition 61 and the upper end opening of the partition 61 are always connected in a watertight manner. 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. Furthermore, the lower end of the shielding portion 83 of the switching valve 80 is
By press-fitting or the like on the upper end of the partition portion 61, or by key connection or spline fitting, etc.
The switching valve 80 is also integrally rotated with the rotation of the water spray plate 40. Then, by rotating the water sprinkling plate 40 via the anti-slip portion 46, the first of the switching valve 80 is changed.
Port 81a of the partition plate 30 is aligned with the communication hole 31a of the partition plate 30 to communicate the main body side space R1 with the continuous flow chamber R21, and the second port 81b is aligned with the communication hole 31a of the main body side space. The switching valve 80 can be freely switched between a pulsating position where R1 communicates with the pulsating chamber R22. In order to give the user a predetermined operation feeling at the continuous flow position and the pulsating flow position, for example, the concavo-convex for positioning is formed on the facing surfaces of the locking flange 45 of the sprinkler plate 40 and the fixing ring 50, respectively. May be.

The guide means of the present embodiment is constituted by the second guide portion having the flow passage forming wall 82 and the vortex forming cutout 85a.

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 rotating shaft 63 in the No. 1 and the O-ring 62 is attached to the O-ring groove 61a, while the O-ring 87 is attached to each O-ring groove 86 of the switching valve 80. Next, the lower end of the flow path forming wall 82 of the switching valve 80 is tightly fitted to the upper end of the partition part 61, and the switching valve 80 and the sprinkler plate 40 are integrated so as not to rotate relative to each other. Then, the base portion 8 of the switching valve 80
1 is accommodated in the mounting portion 31 of the partition plate 30, and the locking flange 45 of the water sprinkling plate 40 is inserted from the opening of the main body 20 to abut on the support flange 33 of the partition plate 30. At this time, the switching valve 80 can be easily positioned with respect to the partition plate 30 because the outer diameter of the base portion 81 is substantially the same as the inner diameter of the mounting portion 31 of the partition plate 30. Also, the watering 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 aligns 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 is aligned 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 is aligned 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 to the flow passage in the flow passage forming wall 82 from the notch 83a and the vortex forming cutout 85a of the second guide portion 85. At this time, since the second ports and the second guide portions are provided at an angle of approximately 180 degrees with respect to the center of rotation of the impeller, the hot and cold water flows from the swirl forming notches 85a. The fluid is effectively fed to the flow passage in the passage forming wall 82 from a position facing 180 degrees in the opposite direction, that is, substantially the same direction as the rotation direction of the impeller 70, and a vortex is formed. Then, the hot and cold water that has become a vortex is guided to the flow passage of the flow passage forming wall 82 and flows into the pulsating flow chamber R22 in the partition portion 61. And the pulsating chamber R
The hot and cold water that flows into the vortex 22 as a vortex collides against 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 70 passes through 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. A continuous flow hole 43a and a pulsating flow hole 42a, which are rotatably attached to the water supply chamber R by a fixing ring 50 to shield the water supply chamber R and communicate the water supply chamber R with 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 pair of first ports 81a formed at a position aligned with the communication hole 31a of the base 81 at an angle of approximately 180 degrees with each other, and the base 81 abutting the partition plate 30, and the base. 81, a pair of second ports 81b formed at a position aligned with the communication hole 31a at an angle of approximately 180 degrees to each other, and inside the first port 81a and outside the second port 81b. To form a tubular shape that passes through the base It is integrally formed in one flow path forming wall 82 that connects the tip end opening and watertight of the partition portion 61
A continuous flow position where the first port 81a is aligned with the communication hole 31a and the main body side space R1 communicates with the continuous flow chamber R21, and the second port 81B communicates with the communication hole 3.
A switching valve 80 that can be switched between a main body side space R1 and a pulsating flow position that communicates the main body side space R1 with the pulsating flow chamber R22.
And each second port 81b inside the flow path forming wall 82
Is formed in a cylindrical shape with a bottom integrally formed at a position opposed to, and a notch 85a for forming a vortex is formed on the peripheral surface of the second port 8 so as to open in a direction substantially the same as the rotation direction of the impeller 70.
A second guide portion 85 for guiding the hot and cold water from 1b to the impeller 70 by guiding the hot and cold water in the substantially same direction as the rotation direction of the impeller 70.
And

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
Is selectively aligned 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.
Matches 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 is aligned 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. At this time, the hot / cold water from the second port 81b is fed toward the flow path in the substantially same direction as the rotation direction of the impeller 70 by the vortex flow forming notch 85a of the second guide portion 85, and the vortex flow is generated. And flows into the pulsating flow chamber R22, and the vortex flow rotates the impeller 70 in the pulsating flow chamber R22. At the same time, for the hot and cold water, the open portion 73 of the impeller 70 is used for the sprinkler plate 40.
When it is opposed to the pulsating flow hole 42a, it is ejected from the pulsating flow hole 42a to the outside through the opening 73, and the blocking part 74
Of 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 hole 42a
From here, a pulsating flow is ejected intermittently according to the rotation pitch of the impeller 70.

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 such a large amount of hot and cold water is swirled by the swirl forming notches 85a and the impeller 70 in the pulsating chamber R22 is directly biased and rotated, the hot and cold water from the water supply passage 11a is in a low flow rate region. Even in some cases, the impeller 70 can be rotated easily and smoothly and stably, and the pulsating flow of the amount necessary for obtaining the massage shower effect can be reliably provided. Further, since it is not necessary to form a complicated hot / cold water flow path for rotating the impeller 70 as in the conventional case, and the number of parts for that is small, the entire apparatus has a simple and compact configuration, While downsizing the entire device,
The manufacturing cost can also be reduced.

By the way, the main body 20 of the present invention has a bowl shape having an opening at one end, and the water supply passage 11 of the grip 11 is provided therein.
It suffices to have a water supply chamber R communicating with a, and it may have a shape other than a hemispherical bowl shape, such as a bottomed cylindrical bowl shape. Also, the watering plate 4
Reference numeral 0 denotes a continuous flow hole 43a which is attached to the opening of the main body 20 to shield the water supply chamber R and to connect the water supply chamber R to the outside.
And the pulsating holes 42a may be provided, and other configurations such as a configuration in which no step is provided between the inner peripheral region 42 and the outer peripheral region 43, or a substantially disc shape without a bottomed cylindrical shape may be employed. . Further, the water sprinkling plate 40 of the above-mentioned embodiment is provided with the fixing ring
Although the fixing ring 50 is omitted, the fixing ring 50 may be omitted, and the fixing ring 50 may be directly attached to the main body 20 so as to be rotatable.

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. It may be housed rotatably, and may be integrally formed not on the sprinkler plate 40 side but on the switching valve 80 side so as to be integrally connected to the sprinkler plate 40, or separately formed as the switching valve 80 and the sprinkler plate 40. It may be configured to be integrally interposed between the two or other configurations. In addition, the impeller 70 includes the water sprinkler plate 40.
Is arranged in the pulsating chamber R22 so as to be rotatable in a plane substantially parallel to the pulsating flow hole 42a, and has an opening portion 73 that opens the pulsating flow hole 42a and a blocking portion 74 that blocks the pulsating flow hole 42a. Any other structure may be used, such as changing the number of the blades 72, changing the number or position of the opening portions 73 or the blocking portions 74, changing the shape of the blades 72, and the like.

Further, the switching valve 80 is arranged between the partition plate 30 and the partition portion 61, and is selectively aligned with the communication hole 31a. The first port 81a and the second port 81b.
And water-tightly connect the second port 81a and the pulsating flow chamber R22, and the hot and cold water from the second port 81b is connected to the impeller 7
It has a guide means for guiding in the substantially same direction as the rotation direction of 0 to feed to the impeller 70, and connects the first port 81a to the communication hole 31.
a continuous flow position where the main body side space R1 and the continuous flow chamber R21 communicate with each other and the second port 81b communicate with each other.
It suffices if the switching operation can be freely performed between the main body side space R1 and the pulsating flow position communicating with the pulsating flow chamber R22 in alignment with a.
The configuration may be appropriately changed such that the number of ports 81a and the number of the second ports 81b are each two. Further, the shape of the vortex forming cutout 85a may be appropriately changed as long as the hot and cold water from the second port 81b is guided and fed in a direction substantially the same as the rotation direction of the impeller 70.

[0045]

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 the water spray plate that divides into a pulsating flow chamber, and an opening and a pulsating flow that are rotatably disposed in the pulsating chamber within the plane of the water spray plate and that open the pulsating hole. An impeller having a blocking portion for blocking a hole, wherein the partition Between the first port and the second port selectively communicating with the communication hole, and between the second port and the pulsating chamber between the partition and the partition formed in the water spray plate, A switching valve having guide means for guiding the hot and cold water from the second port to the impeller in the substantially same direction as the rotation direction of the impeller is arranged, and the first port is communicated with the communication hole. A continuous flow position for communicating the main body side space with the continuous flow chamber, and a pulsating flow position for communicating the second port with the communication hole for communicating the main body side space with the pulsating flow chamber. The switching valve can be freely switched between them.

Therefore, by switching the switching valve between the continuous flow position and the pulsating flow position, the first port or the second port is selectively aligned with the communication hole of the partition plate,
The space on the main body side 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
The port of is aligned 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 is aligned 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 guide means through the communication hole of the partition plate and the second port of the switching valve, and the guide means rotates the impeller. It is fed to the impeller while being guided in the same direction as the direction. The hot and cold water becomes a vortex flow and flows into the pulsating chamber, and the vortex 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 made into a vortex by the guide means to directly energize and rotate the impeller in the pulsating flow chamber. It is possible to rotate the vehicle easily and smoothly and stably, and reliably provide the pulsating flow necessary for obtaining the 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.

According to a second aspect of the present invention, in the first aspect of the present invention, the switching valve further abuts substantially the entire partition plate, and the first and second switching valves are provided.
A base portion having a port, and a base portion integrally formed with the base portion so as to pass through the inside of the first port and the outside of the second port, and its tip is watertightly connected to the partition portion. The guide means has a passage forming wall, and a pair of the communication hole of the partition plate and the second port of the switching valve are formed at an angle of approximately 180 degrees with respect to the rotation center of the impeller. Has a bottomed cylindrical shape integrally formed with the flow passage forming wall and a position facing the respective second ports inside the flow passage forming wall, and has substantially the same circumferential direction as the rotation direction of the impeller. The guide portion has a notch that opens in the direction.

Therefore, the second valve is formed in the flow path forming wall of the switching valve.
Since the flow path from the port of the to the pulse chamber is formed,
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 pulsating flow chamber along the flow passage forming wall. Furthermore, since the second port and the guide portion are provided at an angle of approximately 180 degrees with respect to the center of rotation of the impeller, the hot and cold water can flow from the notch into the flow passage in the flow passage forming wall by 180 degrees. It is more effectively fed from the opposite position in the opposite direction, that is, in substantially the same direction as the rotation direction 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. Since the hot and cold water is swirled by the guide means to directly energize and rotate the impeller in the pulsating chamber, the impeller can be easily and smoothly operated even when the hot and cold water from the water supply channel is in the low flow rate range. 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 is a bowl-shaped shower having a circular opening, a main body having a water supply chamber communicating with a water supply passage therein, and the water supply chamber attached to the opening of the main body. And a water spray plate having a continuous flow hole and a pulsating flow hole in the outer peripheral portion and the central portion, respectively, which connect the water supply chamber and the outside, and are watertightly attached to the main body so as to be substantially parallel to the opening. A partition plate in which the water supply chamber is divided into a main body side space and a sprinkler plate side space, and a pair of communication holes that communicate the main body side space and the sprinkler plate side space are arranged at an angle of approximately 180 degrees with respect to each other. And the water spray plate is 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 of the water discharge plate is arranged to face the partition plate, and A continuous flow chamber communicating with the flow hole, and the pulsating flow And a partition part that is partitioned into a pulsating chamber that communicates with the pulsating flow chamber, and a plurality of partitions that are arranged in the pulsating chamber in the partition part so as to be rotatable in a plane substantially parallel to the water spray plate and that extend in a substantially radial direction of the partition part. Blades, an opening portion formed between adjacent predetermined pairs of blades to open the pulsating flow hole, and a blocking portion formed between other adjacent predetermined pairs of blades to block the pulsation flow hole. And a base portion that is in contact with the partition plate and a position that communicates with the communication hole of the base portion between the partition plate and the partition portion.
The pair of first ports that are formed at an angle of 80 degrees and the positions that communicate with the communication holes of the base are approximately 1 mm apart from each other.
A pair of second ports drilled at an angle of 80 degrees, and integrally formed on 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,
A switching valve composed of a flow path forming wall whose tip is watertightly connected to the tip opening of the partition is arranged, and the first port is communicated 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 position where the second port communicates with the communication hole to communicate the main body side space and the pulsating chamber, and the flow passage forming wall A bottomed cylindrical guide portion is integrally formed at a position facing each second port inside, and a notch is formed on the peripheral surface of the guide portion so as to open in substantially the same direction as the rotation direction of the impeller, The hot and cold water from the second port is guided in the substantially same direction as the rotating direction of the impeller and is fed to the impeller.

Therefore, by switching the switching valve between the continuous flow position and the pulsating flow position, the first port or the second port is selectively aligned with the communication hole of the partition plate,
The space on the main body side 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
The port of is aligned 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 is aligned 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. At this time, the second
The hot and cold water from the port is sent to the flow path in the substantially same direction as the rotation direction of the impeller by the notch of the guide part.
It is made into a vortex and flows into the pulsating chamber, and the vortex causes the impeller inside the pulsating chamber to rotate. 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 vortexed by the guide part 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 the 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 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 an EE of (a). A line sectional view, (d) is a perspective view showing the first and second port portions by notching.

FIG. 8 is a 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 Port 82 Flow path forming wall 85 Second guide portion 85a Vortex forming notch (notch) 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 that is rotatably disposed in the plane of the water spray plate in the pulsating chamber and that has an opening part that opens the pulsating hole and a blocking part that blocks the pulsating hole; and the partition plate. It is arranged between the partition formed on the water spray plate and selectively communicates with the communication hole. The first port and the second port, the second port and the pulsating chamber are watertightly connected, and the hot and cold water from the second port is guided in a direction substantially the same as the rotation direction of the impeller. A continuous flow position for communicating the first port with the communication hole to communicate the main body side space with the continuous flow chamber, and a communication hole for communicating with the second port. A switchable shower comprising: a switching valve that is in communication with the main body portion side space and a pulsating flow position that communicates with the pulsating flow chamber. 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,
A flow path forming wall whose tip is water-tightly connected to the partition portion, the communication hole of the partition plate and the second port of the switching valve are
Each of them is approximately 180 with respect to the center of rotation of the impeller.
The guide means is formed in a pair of cylinders at a certain angle, and has a bottomed cylindrical shape integrally formed with the flow path forming wall and a position facing each second port inside the flow path forming wall. The switchable shower according to claim 1, further comprising: a guide portion having a notch that opens in a circumferential surface substantially in the same direction as the rotation direction of the impeller. 3. A body having a bowl-like shape having a circular opening and having a water supply chamber communicating with the water supply passage therein, and a water supply chamber attached to the opening of the body to shield the water supply chamber and the water supply chamber and the outside. A sprinkler plate having continuous flow holes and pulsating flow holes in the outer peripheral portion and the central portion, respectively, and watertightly attached to the main body so as to be substantially parallel to the opening, and the water supply chamber is sprinkled with the main body side space. A partition plate which is divided into a plate-side space and which is provided with a pair of communication holes that communicate the body-side space and the sprinkler plate-side space at an angle of approximately 180 degrees from each other, and 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 partition section that divides into a pulsating chamber that communicates with the pulsating hole; Formed between a plurality of blades extending in a substantially radial direction of the partition and arranged adjacent to each other in a predetermined pair of blades so as to be rotatable in a plane substantially parallel to the water spray plate. An impeller having an open portion that opens the pulsating flow hole and a blocking portion that is formed between another adjacent pair of predetermined blades that blocks the pulsating flow hole; and the partition plate and the partition portion. A base portion that is disposed between the base portion and the partition plate, and a pair of first portions that are formed at a position communicating with the communication hole of the base portion at an angle of approximately 180 degrees with respect to each other.
Port, a pair of second ports bored at an angle of approximately 180 degrees with each other at a position communicating with the communication hole of the base, and the inside of the first port and the second port. It is formed integrally with the base portion so as to form a tubular shape that passes through the outside, and is composed of a flow path forming wall that watertightly connects the tip end to the tip end opening of the partition portion, and the first port communicates with the communication hole. It is switchable between a continuous flow position where the main body side space and the continuous flow chamber communicate with each other and a pulsating flow position where the main body side space communicates with the pulsating flow chamber by communicating the second port with the communication hole. It has a bottomed cylindrical shape integrally formed with the switching valve at a position facing each of the second ports inside the flow path forming wall, and opens on the peripheral surface thereof in substantially the same direction as the rotation direction of the impeller. A notch is formed so that the hot and cold water from the second port is substantially in the rotational direction of the impeller. A switchable shower that includes a guide unit that guides in the same direction and feeds the impeller.