JPH0468023B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a pulsating spray showerhead.

BACKGROUND OF THE INVENTION Conventionally, a pulsating spray type shower head has been known as one type of shower head, and such a shower head sprays hot water in a pulsating manner from the head and applies it to the human body to exert a massage effect and help improve health.

[Conventional technology and its problems]

Therefore, various types of such pulsating spray showerheads have been proposed in the past. All of these proposals have a structure in which a member that is moved by tap water intermittently blocks the water flow flowing through a large number of diffused water holes drilled in the head, and such intermittent blocking action is also difficult. , producing a pulsating spray.

For example, the pulsating spray shower head introduced in Japanese Patent Publication No. 52-43427 has a pot-shaped main body with diffused water discharge holes on the bottom surface, and a rotary valve that is held on the inner wall of the main body and rotates while contacting the bottom surface. The rotary valve consists of a large number of blades that are bored in the axial direction of the cup-shaped main body and extend in the radial direction, and a part of the blades are connected between the blades in order to cause rotational movement by water pressure. The waterway in the head is composed of a first channel that introduces tap water in a tangential direction (lateral direction) to the rotary valve, and a first channel that introduces tap water in the tangential direction (lateral direction) of the rotary valve, and a The second flow path also introduces the valve from the vertical direction. Therefore, the rotary valve having blades is rotated by the tap water from the first channel while being held on the inner wall of the cup-shaped main body.

However, in such a pulsating spray shower head, when the rotary valve rotates at its maximum speed, that is, when trying to increase the frequency of the pulsating flow, the tap water
This increases the amount of water flowing from the side through the flow path, which in turn reduces water pressure.
There were complaints that the stimulation of the shower effect was lost.

Further, for example, the pulsating spray shower head introduced in Japanese Patent Publication No. 55-5385 consists of a pot-shaped main body having a diffusion water discharge hole on the bottom surface, and a vibrating member supported by a protrusion at the center of the bottom surface of the main body. In order to cause the vibrating member to tilt by using tap water, a first flow path for introducing tap water from the vertical direction is formed in the lid covering the cup-shaped main body, and a first channel is formed to introduce the tap water from the vertical direction, and the vibrating member is bypassed. A second flow path is configured to discharge water from another diffusion water discharge hole.

However, in such a pulsating spray type shower head, the tap water impinges on the entire surface of the vibrating member, reducing the water pressure, which has caused dissatisfaction with the fact that even in such a shower head, the stimulation that is the shower effect is impaired.

[Means for solving problems]

Therefore, the present invention was created in an attempt to eliminate these drawbacks in the conventional example, and a floating body that is in contact with the bottom is built into a pot-shaped main body having a diffusion water discharge hole at the bottom, and a floating body that is in contact with the bottom is Tap water is introduced diagonally downward from the axial direction of the pot-shaped body,
To provide a pulsating spray type shower head which prevents a drop in tap water pressure by rotating and revolving the floating body.

Hereinafter, the configuration of the present invention will be explained in detail using examples. Fig. 1 is a diagram of the principle of the present invention, Fig. 2 is a cross-sectional view of the main part from A to A in Fig. 1, Fig. 3 is a main part view of the cross-section from B to B in Fig. 1, and Fig. 4 is the assembly of this embodiment. 5 shows an exploded view of FIG. 4, respectively.

First, to explain the operating principle of this embodiment, as shown in FIGS. 1 to 3, a large number of diffusion water discharge holes 5 are bored on the opening side of the shower head main body 3, which is equipped with a supply passage 1 and a head chamber 2. A water sprinkling plate 4 is provided, a partition portion 6 is horizontally installed approximately in the middle of the head chamber 2, and between the partition portion 6 and the water sprinkling plate 4,
A water flow plate 7 is interposed between the water flow plate 7 and the water sprinkling plate 4 to form a vortex chamber 8 having a pot-shaped main body, and a rotor 11 is suspended in the vortex chamber 8.

The water spray plate 4 has three guide holes 9 bored in its periphery, and the guide holes 9 form an inclined upper surface 10 inclined at 30 degrees with respect to the horizontal as shown in the first figure. The water flow is guided by the upper surface 10 and flows into the swirl chamber 8 in a spiral manner.

The rotor 11 is formed into a link shape, the outer periphery of which has a surface forming a regular pentagon, and the inner periphery of which is formed into a funnel shape. The size of the rotor 11 is such that approximately 1/3 of the number of diffusion water discharge holes 5 is always blocked.
Approximately 2/3 of the remaining area is opened by adjusting the outer diameter d and the wall pressure t.
are choosing.

With the above configuration, a water flow is introduced into the head chamber 2 from the supply passage 1, and then bypasses the through hole 12 of the partition portion 6 and enters the upper surface of the water flow plate 7.
Through the guide holes 9 of the water flow plate 7, the water flow flows down into the swirl chamber 8 while forming a swirl. As a result, a portion of the water flow tangentially collides with the outer circumferential surface of the rotor 11, causing the rotor 11 to rotate and revolve as shown in the third figure while contacting the cylindrical inner wall of the vortex chamber 8.

To further describe this movement, the rotor 11 is
In the illustrated position, the water flow from the guide hole 9 a in FIG. The water flow from the guide hole 9 b is
A part of the water acts to rotate the rotor 11 and discharges water from the diffusion water discharge hole 5. Further, the water flow from the guide hole 9 c is mainly caused to collide with the outer circumferential surface of the rotor 11 while being discharged from the diffusion water discharge hole 5 . Therefore, the rotor 11 rotates counterclockwise in the figure and revolves in the same direction while contacting the inner wall of the swirl chamber 8. As a result, since the diffusion water discharge holes 5 are sequentially closed and opened, the water discharge acts as an intermittent blocker, forming a pulsating spray of water that travels in a spiral pattern.

Next, a specific example of a pulsating spray type shower head using this principle will be explained based on FIGS. 4 and 5.

First, the outline of the structure of the pulsating spray shower head is as follows: A housing 2 in which a cylindrical switching valve 20 is rotatably fitted into a water sprinkling plate 4.
1 is placed thereon, and a water flow plate 7 is placed on a stepped portion 22 on the inner periphery of the switching valve 20. In order to integrate the water flow plate 7 and the switching valve 20 with the fixing plate 23, a fixing screw 24 is passed through the center of the fixing plate 23, and the fixing screw 24 is connected to the support 25 erected in the center of the water spray plate 4. Screw on. Therefore, the watering plate 4,
The cylindrical switching valve 20, the water flow plate 7, and the fixing plate 23 are integrated with a fixing screw 24, and are fitted into the inner surface of the housing 21 so as to rotate.

On the other hand, regarding the housing 21, the lower surface of the flange 26 is supported by a step 28 on the inner circumference of the cylindrical body 27, and the upper surface supports the open end of the shower head body 3, so that the housing 21 is supported by the cylindrical body 27. 27 and the shower head main body 3, which are sandwiched and integrated. The cylindrical body 27 is removably attached to the shower head body 3 by threading a thread 29 carved on its inner surface with a thread 29 carved on the outer surface of the opening of the shower head body 3. . Therefore, the water spray plate 4 and the like are also detachably attached to the shower head main body 3.

A cosmetic ring 30 is also provided on the outer periphery of the cylindrical body 27.
are loosely fitted, and the protrusions 31 on the inner periphery of the decorative ring 30 and the protrusions 32 on the outer periphery of the water spray plate 4 are integrated in a state where they mesh with each other. Therefore, when the decorative ring 30 is rotated, the water spray plate 4, the cylindrical switching valve 20, the water flow plate 7, etc. are rotated with respect to the outer periphery of the cylindrical body 27 and the inner periphery of the housing 21.

In the swirl chamber 8 surrounded by the water spray plate 4, the cylindrical body 27, and the water flow plate 7,
A rotor 11 is floatingly built in so as to be able to rotate and revolve around the pillar 25.

Next, regarding the cylindrical switching valve 20, it has a large diameter section 33 and a small diameter section 34 that is slightly smaller in diameter than the large diameter section 33.
The large diameter portion 33 is composed of a cylindrical body integrated with
A pair of elongated holes 35, 35 are formed in the horizontal direction, and a pair of vertically curved portions 36 are formed extending in the diameter of the small diameter portion 34, and these curved portions 36 and A wavy O-ring 37 that bypasses the elongated hole 35 is provided around the circumference. The elongated hole 35 serves as a first flow path that communicates with the swirl chamber 8, and the curved portion 36 serves as a second flow path that communicates with the outer circumferential hole 38 of the water sprinkling plate 4.

Next, regarding the housing 21, as described above, a flange 26 is formed slightly below the center of the outer periphery in the axial direction, and a pair of half-moon-shaped introduction holes 39 are bored in the upper side of the flange 26, using the flange 26 as a water flow guide. Further, a plurality of ribs 40 as water flow guides are provided on the outer periphery of the housing 21 and above the flange 26 in the axial direction. housing 2
A pair of protrusions 41 are bored in the axial direction on the outer periphery of the cylindrical body 26 and below the flange 26, and are fitted into recesses 42 on the inner periphery of the cylindrical body 27, so that the housing 21 is integrated with the cylindrical body 27.

Since this embodiment has the above structure, the water flow introduced from the supply passage 1 of the shower head main body 3 is annularly formed by the fixing plate 23 and introduced into the semicircular introduction hole 39 of the housing 21.

Here, regarding the first flow path, if the decorative ring 30 is rotated and the cylindrical switching valve 20 is rotated to match the half-moon-shaped introduction hole 39 and the elongated hole 35, the water flow will flow through the first flow path. The water is introduced into the water flow plate 7 and the swirl chamber 8 as a flow path, and the rotor 11 is rotated and revolved as explained in the operation principle above, and water is discharged from the diffusion water discharge hole 5 in a pulsating spray.

Regarding the second flow path, the cylindrical switching valve 2
If the half-moon-shaped introduction hole 39 and the curved part 36 are aligned with each other by turning 0, the water flow will flow through the water flow plate 7 and the swirl chamber 8.
The water is not introduced to the side, but is discharged from the curved portion 36 as a second flow path through the outer circumferential hole 38 of the water sprinkling plate 4 while performing a normal shower spray.

As described above, the pulsating spray type shower head of this embodiment can be used while switching from pulsating spray to normal shower spray.

In this embodiment, as shown in Fig. 6, if you leave the water spray plate 4, decorative ring 30, and cylindrical body 27 as they are, and prepare and assemble a new fixing plate 23' and fixing screws 24', you can create a normal shower head. Since it can be constructed as a single unit and shares parts with the pulsating spray shower head, production costs can be reduced through mass production.

Since the present invention has the above configuration, it has the following effects.

〔Effect of the invention〕

For floating bodies that intermittently block the diffused water discharge hole,
Since the water flow is guided from the water flow plate that is the ceiling of the vortex chamber, the flow speed of the water flow is not inhibited even if the flow speed of the supplied water flow is increased, and the rotation and revolution of the floating body are accelerated and the pulsation frequency is increased. I can do it.
In particular, since the rotating and revolving floating body is blocked by the diffusion water discharge hole, the flow rate of the water flow is not inhibited.

[Brief explanation of the drawing]

Figure 1 is a diagram of the principle of the present invention, Figure 2 is A of Figure 1.
3 is a sectional view of main parts from B to A in FIG. 1, FIG. 4 is an assembled sectional view of an embodiment of the present invention, FIG. 5 is an exploded view of FIG. The figures each show a cross-sectional view of a reference example. 1... Supply passage, 3... Shower head main body,
4... Water spray plate, 5... Diffusion water hole, 7...
Water flow plate, 8... Vortex chamber, 9... Guidance hole, 1
1...Rotor.

Claims (1)

[Scope of Claims] 1. A swirl chamber is formed, the bottom of which is a water spray plate with a large number of diffusion water discharge holes, and the ceiling of which is a water flow plate that communicates with a supply passage provided in the main body of the shower head. It is characterized in that a floating body is built in and is in contact with the water spray plate and is capable of rotating and revolving, and the water flow plate is provided with a guide hole that guides the water flow in the supply passage into the swirl chamber in a spiral manner. Pulsating spray shower head. 2. The vortex chamber is formed by a water sprinkling plate, a cylindrical switching valve placed on the water sprinkling plate, and a water flow plate covering the cylindrical switching valve, and the cylindrical switching valve is wound around the inner peripheral surface of the housing. A conventional shower spray passage is formed between the cylindrical switching valve and the housing, and by rotating the cylindrical switching valve, the supply of water to the swirl chamber can be adjusted. In addition, claim 1 also enables ordinary shower spray.
The pulsating spray shower head described in Section 1.