JP7545742B2 - Water discharge device - Google Patents

Description

The present invention relates to a water discharge device that discharges water supplied from a water supply. In particular, the present invention relates to a water discharge device with a position adjustment function that allows the water discharge nozzle device, etc. to be easily detached from a basic position and moved three-dimensionally, and also to a water discharge device that can be easily returned to the basic position.

Housework is often done using a water discharge device that discharges water from a water supply into a kitchen sink, etc. Conventional water discharge devices have long been available, such as those with a fixed spout or those with a spout that rotates only in a horizontal plane, and these water discharge devices cannot move the water discharge nozzle in three dimensions.
However, even in the prior art, there were water discharge devices with a position adjustment function that made it possible to move the water discharge nozzle device at the tip of the spout and adjust its position.

For example, in the prior art, there is a technique that employs a flexible hose material or a flexible pipe material as a water guideway from a spout to a water discharge nozzle at the tip. For example, the technique shown in Fig. 20 (Patent Document 1: JP-A-11-152774) is known.
As shown in Figure 20, a guide sleeve 101 is fitted to the tip of a spout 100, and a pipe section 103 with a water-discharging nozzle device 104 at its tip is incorporated within the guide sleeve 101 so that it can be freely attached and detached. If the water-discharging nozzle device 104 is removed from the tip of the spout 100, then if the pipe section 103 is a flexible hose, it can be slidably inserted and removed from the guide sleeve 101, and the pipe section 103, which is a flexible hose, can be freely flexed.

In addition, for example, in the prior art, there is a water discharge device with a position adjustment function for a water discharge nozzle device, etc., which employs a so-called corrugated flexible pipe. For example, the one shown in Fig. 21 (Patent Document 2: JP 2008-51178 A) is known.
The flexible pipe used in a water-discharge device with a position adjustment function, such as a water-discharge nozzle device shown in Figure 21, is configured to include a flexible corrugated pipe 11 made of synthetic resin in which large diameter sections 11a and small diameter sections 11b with different inner diameters are alternately arranged along the axial direction D, a stainless steel bellows tube 12 inserted into the corrugated pipe 12 with flange-shaped sections 12b formed on openings 12a at both ends protruding from openings 11c at both ends of the corrugated pipe 11, a bag nut 13 that is rotatably and undetachably attached to the outer periphery of the flange-shaped section 12b while communicating coaxially with the bellows tube 12, a sleeve section 14a that is inserted between the corrugated pipe 11 and the bellows tube 12, a flange section 14b that is clamped between the opening 11c of the corrugated pipe 11 and the bag nut 13, and a protrusion 14c formed on the outer periphery of the sleeve section 14a.
The advantage of the flexible pipe 10 is that it has a certain degree of flexibility and can remain stationary at any position against its own weight.
For this reason, the flexible pipe 10 is formed of a flexible stainless steel spiral pipe or a synthetic resin spiral pipe, etc. Also, there is a stainless steel spiral pipe whose outer periphery is covered with a resin bellows pipe, etc.

In this way, if the water-discharging nozzle device at the tip of the spout is movable, it can be flexibly and slidably inserted and removed from the tip of the spout, and the position of the water-discharging nozzle device at the tip of the spout can be freely adjusted in so-called three-dimensional space, which is very convenient. Also, when cleaning the sink, if the position of the water-discharging nozzle device at the tip of the spout can be freely adjusted, water can be discharged into the corners of the sink, which is very convenient.

Japanese Patent Application Publication No. 11-152774 JP 2008-51178 A

However, in the case of using a flexible hose material or flexible pipe material as the water conduit from the spout to the water-discharging nozzle device at the tip as shown in Figure 20, there was a problem with the attachment and detachment work of keeping the pipe portion 103 and the water-discharging nozzle device 104 in the basic position and removing them.
When pulling out from the guide sleeve 101 to extend it, or pushing in to retract it and fix it in a predetermined position, it was necessary to remove the water-discharging nozzle device 104 from the guide sleeve 101 and pull out and extend the pipe section 103 from the guide sleeve 101. Furthermore, when returning it to its original position, it was necessary to insert and store the pipe section 103 in the fixed rod-shaped guide sleeve 101, and further to mount and fit the water-discharging nozzle device 104 into the predetermined shape of the guide sleeve 101, which was a complicated and time-consuming task.

Next, in the case of using a flexible tube 10 as a water conduit from the spout to the water-discharging nozzle device at the tip, as shown in Figure 21, a certain degree of flexibility is ensured and it can be stationary at any position in three-dimensional space, but the flexibility of the flexible tube 10 is small, limiting the range of motion and not ensuring the freedom to bend significantly, resulting in the problem that the water-discharging nozzle device cannot be moved freely through space in three dimensions.
In addition, stainless steel spiral tubes can corrode if detergent adheres to them, and are particularly susceptible to corrosion if chlorine-based detergent adheres to them.

In other words, in the prior art water-discharging device with a position adjustment function for the water-discharging nozzle device, etc., when emphasis is placed on freely moving the water-discharging nozzle device in three-dimensional space, it becomes as shown in Figure 20, and while free movement in three-dimensional space can be ensured by using a water conduit from the spout to the water-discharging nozzle device at the tip that is sufficiently flexible, such as a hose, on the other hand, there was no technology to easily detach the water-discharging nozzle device 104 from the basic position, making the attachment and detachment process problematic.
On the other hand, if emphasis is placed on the fact that the water-discharging nozzle device does not need to be detached and can be fixed at any position in three-dimensional space, then the result is as shown in Figure 21, which allows the device to be fixed at any position in three-dimensional space, but the flexibility of the flexible tube 10 becomes small, limiting the range of motion and making it impossible to ensure the freedom to bend significantly.

The present invention aims to provide a water discharge device that uses a highly flexible hose material as the water conduit from the spout to the water discharge nozzle at the tip, ensuring flexibility so that the water discharge nozzle can be moved freely in three-dimensional space, and that ensures stable operability by allowing the water discharge nozzle to be easily attached and detached from the basic position.

In order to achieve the object of the present invention, the water discharge device according to the present invention comprises a spout which supplies water from a water supply pipe, a flexible and bendable hose body connected to the spout, a water discharge head body which is connected to the hose body and discharges water guided from the water supply pipe, an arm support which is extended from the spout, and a water supply operation unit, the arm support comprises an arm body of the arm support and a support connector which is located at the tip of the arm body and has a cylindrical shape or a curved three-dimensional shape with a long axis facing the water discharge head body, This water-dispensing device is characterized in that the water head body comprises a cylindrical hole with an inner diameter large enough to accommodate the long axis of the support connector, a mating concave shape provided on the bottom surface of the cylindrical hole to accommodate the shape of the opposing surface of the support connector, and a head connector including an inclined three-dimensional shape that guides the support connector by rotating and sliding from the shoulder of the cylindrical hole to the mating concave shape, and the water-dispensing head body is supported in a detachable manner from the arm support via a connection between the support connector of the arm support and the mating concave shape of the head connector of the water-dispensing head body.

Here, it is preferable that the shape of the outer surface of the inclined three-dimensional shape of the water discharge head body is one that matches the rotational motion trajectory of the support connector as it rotates from the shoulder of the cylindrical hole to the mating concave shape and advances toward the bottom surface.

In addition, the inclined three-dimensional shape of the head connecting body of the water-discharging head body has a ridgeline that is on the line connecting the shoulder of the cylindrical hole to the center of the groove shape of the mating concave surface shape , and its bottom has a mountain-like shape with slopes on both sides that reach the boundary line between the bottom surface and the groove shape, and there are two such mountain-like shapes, a first mountain-like shape and a second mountain-like shape, with the first mountain-like shape and the second mountain-like shape facing each other on either side of the groove shape.
With the above configuration, when the support connection body of the arm support body is pushed in while facing the head connection body of the water-discharge head body, the outer surface of the support connection body abuts against the inclined three-dimensional shape, and then the support connection body descends while sliding and rotating along the slopes of the first and second mountain-like shapes, spanning the first and second mountain-like shapes, increasing its penetration depth into the cylindrical hole of the head connection body, and the outer surface of the opposing surface of the support connection body is guided so as to fit into the groove shape of the head connection body.

Here, it is preferable that the head connector has a structure including a cone-shaped slope that slopes down into the cylindrical hole so as to surround the outer periphery of the cylindrical hole.
When the support connector of the arm support approaches the head connector, if the positional relationship between the two is not accurate and the support connector of the arm support does not directly enter the cylindrical hole of the head connector of the water discharge head body, but abuts on the mortar-shaped slope that spreads around its periphery, the support connector of the arm support will naturally be guided into the cylindrical hole as it approaches the head connector. Therefore, when the user uses the water discharge head body , he or she can hold it and press it appropriately against the support connector of the arm support, which will naturally be guided into the cylindrical hole, and it will further rotate and slide along the inclined three-dimensional shape, so that the support connector of the arm support fits into the groove shape of the fitting concave shape of the water discharge head body and is supported. In other words, smooth attachment and detachment is possible by simply operating appropriately without accurately controlling the positional relationship between the two.

Here, the support connection body of the arm support body and the water-discharge head body rotate and slide relative to each other so that the opposing surfaces of the support connection body ultimately fit into the groove shape, but it does not matter which one rotates during the relative rotational sliding between the two.
The first pattern is a structure in which the support connector side of the arm support rotates. In other words, the support connector of the arm support is structured to be rotatable around the axis of the arm body, and the support connector rotates and slides as the water-spouting head body is pushed in.
The advantage of this first pattern is that the user does not need to move the water-spouting head body held in the hand, but simply pushes it in while in that position.
When the use of the water discharge device is finished and the water discharge head body is to be supported on the arm support for a long period of time, the water discharge head body can be rotated so that the position of the water discharge head body is the basic position (the water discharge port facing downwards). If the groove shape of the water discharge nozzle is approximately horizontal and the support connector of the arm support is approximately horizontal, the support is likely to be stable.

The second pattern is a structure in which the water-discharging nozzle side held by the user's hand is rotated. In other words, the support connector of the arm support is fixed and cannot rotate around the axis of the arm body, and when the water-discharging nozzle is pushed in, the support connector remains stationary and the water-discharging nozzle side held by the user's hand naturally rotates and slides relative to the arm.
The advantage of this second pattern is that the support connector is approximately horizontal in the final state where it is fitted into the groove shape, making it easier for the arm support to stably support the water-discharging nozzle. If the groove shape of the water-discharging nozzle is approximately horizontal and the support connector of the arm support is approximately horizontal, support is easier to stabilize.
In this second pattern, the support connection body of the arm support remains approximately horizontal and does not move, so the user needs to rotate the water-discharge nozzle side that they are holding; however, because the user knows the final position when supporting the water-discharge nozzle (for example, the water outlet facing downwards), even if the user holds the water-discharge head body at an angle, there is no discomfort or surprise from the rotational sliding, and the user only needs to lightly move their wrist, so there are no major disadvantages.

Possible shapes of the support connector of the arm support body and the head connector of the water-spouting head body are as follows.
The support connector of the arm support body is cylindrical or cigar-shaped, and the mating concave shape of the head connector of the water-spouting head body is a groove shape whose cross section is an arc that follows the support connector and has an opposing straight line that matches a part of the support connector.
As another example, the support connector of the arm support body is shaped like an ellipsoid or a rugby ball, and the mating concave shape of the head connector of the water-spouting head body is an arc whose cross section follows the support connector and is a groove shape with an opposing curve that matches part of the support connector.
In the above-mentioned shape example, the concave mating shapes of the support connector of the arm support and the head connector of the water-spouting head body match and can be fitted together. If the inclined three-dimensional shape of the head connector of the water-spouting head body is a mountain-like shape that follows the rotational sliding trajectory of the support connector of the arm support, the pushing motion until the fitting can be performed smoothly.

In order to ensure a reliable connecting force, it is preferable that the support connector at the tip of the arm support and the head connector of the water-discharge head body are made of a material, one of which is magnetic and the other of which has magnetic attractive properties.
With the above configuration, magnetic force can be used as a connecting force between the arm support and the water-spouting head body.
Alternatively, instead of the above configuration, it is preferable that both the support connection body at the tip of the arm support and the head connection body of the water-discharge head body are made of magnets, and that they are arranged magnetically so that they can be attracted to each other.
With the above configuration, magnetic force can also be used as a connecting force between the arm support and the water-spouting head body.

After the water discharge head of the water discharge device of the present invention is removed from the arm support, the hose body is flexible and has a high degree of freedom in bending, ensuring freedom of movement in three dimensions. In order to further ensure freedom of movement in three dimensions in the basic position (resting position) of the water discharge head, the following structure can be adopted.

The first structure is the vertical tilt of the arm support. In other words, at the connection between the arm support and the spout, the arm support is structured with a movable mechanism that allows at least vertical tilt with respect to the spout, and the basic position (static position) of the water discharge head can be controlled in the vertical direction through the vertical tilt of the arm support.

The second structure is the left-right swivel of the spout. In other words, the spout is structured with at least a movable swivel mechanism at least in a portion below the connection with the arm support, and the left-right swivel of the spout makes it possible to control the basic position (static position) of the water-discharging head in the left-right direction.

The third structure is the torsional rotation of the water-spouting head. In other words, the water-spouting head is connected to a hose body, which is a flexible, bendable hose body connected to a spout. This allows for some torsional margin. There may also be a structure that allows for swivel rotation at the connection between the water-spouting head and the hose body. This structure allows for greater freedom of position for the water-spouting head, and greater freedom of position for the connection between the head connector of the water-spouting head body and the support connector at the tip of the arm support.

Next, further improvements to the water discharge device of the present invention may be as follows.
The first innovation is to incorporate a water-saving pulsating or intermittent fluid generating device invented by inventor Masaaki Takano into the water discharge head. The device for generating a pulsating fluid or an intermittent fluid comprises an injection mechanism which injects a liquid or gaseous fluid, and a spatial cavity which is located downstream of the injection mechanism and has a fluid discharge section below the injection mechanism and a through hole on the side thereof which is connected to an air passage for conducting outside air, the inside of which is filled with outside air, and which is configured so that the injection fluid is formed so that a part of the injection fluid flows while temporarily covering the through hole due to changes in the injection destination of the injection fluid of the injection mechanism or due to collision of the injection fluid with a wall surface of the air cavity, and the injection fluid is formed so as to restrict the amount of outside air passing through the through hole, and a temporary pressure drop in the spatial cavity caused by the injection of the injection fluid downward within the spatial cavity and a temporary pressure recovery in the spatial cavity due to the injection of the outside air from the through hole are repeatedly changed, thereby generating a rhythm of strength and weakness of the injection of the outside air, and generating a pulsating flow or intermittent flow of the fluid from the injection mechanism.

The second innovation is that an LED light-emitting body is incorporated into a part of the water-discharging head body, making it possible to project light from the water-discharging head body.
The third innovation is to have a structure equipped with sensors related to water usage and an IoT system that stores or transmits data obtained from the sensors.

Through these measures, the following can be achieved:
In other words, by using the first innovation described above and attaching an excellent water-saving pulsating fluid or intermittent fluid generating device to the water-discharge head, the water-discharge device of the present invention can achieve excellent water-saving effects as well as excellent cleaning effects, making it an environmentally friendly water-discharge device that will be highly beneficial in achieving the SDGs.
The above-mentioned "device for generating pulsating fluid or intermittent fluid" is described in detail in Patent No. 5,961,733 (inventor Takano Masaaki), and the generated pulsating fluid or intermittent fluid is, for example, in the form of roughly ball-shaped liquid lumps, which are ejected intermittently or in a continuous state with some edges connected to each other, resulting in a high water-saving effect as well as a high cleaning effect as each liquid lump intermittently or continuously collides with the object to be cleaned. By attaching this "device for generating pulsating fluid or intermittent fluid" to the tip of the water-spouting head body as a water-spouting nozzle, a high water-saving effect and a high cleaning effect can be obtained.

In addition, with the second feature, for example, if the LED light emitter is controlled to emit light in a specific color while the "pulsating or intermittent fluid generating device" of the first feature is operating, it is easy to recognize that water saving and cleaning effects are being achieved while water is being discharged. It also has the effect of functioning as a hand lamp at night.

The third innovation above, for example, makes it possible to dynamically grasp the amount of water used through the use of the water discharge device of the present invention. Furthermore, it is possible to grasp the amount of water used not only at the household level, but also at the neighborhood level, region level, and time period level. If this information is obtained as big data, it can be used as valuable water resource data in pursuit of the SDGs, and will be extremely beneficial.

According to the water discharge device of the present invention, when the water discharge head is detached from the arm support, the hose body is flexible and has a high degree of freedom of bending, ensuring freedom of movement in three-dimensional space. When attaching the water discharge head to the support connector of the arm support, simply by pushing the head connector of the water discharge head toward the support connector of the arm support, one of the two rotates and slides relative to the other, and the outer surface shape of the support connector of the arm support and the groove shape of the head connector of the water discharge head body are connected to each other along the shape of the connector, thereby obtaining excellent connection ability.
When the water-spouting head is attached to the arm support, the arm support can also tilt and swivel, ensuring a high degree of freedom of movement for the water-spouting head in three-dimensional space. In particular, if the support connector of the arm support is rotatable around the axis of the arm body, the water-spouting head body can be rotated around the axis of the arm body while attached to the arm support, ensuring a high degree of freedom of movement for the water-spouting head in three-dimensional space.
For example, if the support connector of the arm support body and the head connector of the water-dispensing head body are connected by using a material that is magnetic and the other has magnetic attractive properties, or if both are magnetic and have a magnetic arrangement that allows them to be attracted to each other, the two can be connected freely and detachably by magnetic force.

1 is a diagram showing a configuration example of a water discharge device 100 according to a first embodiment of the present invention. 1 is an enlarged view of the head connector 142 of the water-spouting head body 140 and the support connector 152 of the arm support 150. FIG. 1 is a simplified diagram showing the operation of connecting and disconnecting the water-discharge head body 140 and the arm support 150. 13 is a diagram for simply explaining the operation of connecting and disconnecting the mountain-like shape of the inclined three-dimensional shape 1423 to and from the support connector 152. FIG. This figure shows how the water-spouting head 140 can be freely attached and detached at any height depending on the tilt position of the arm support 150. 13 is a diagram illustrating the degree of freedom of swivel of the posture of the water-spouting head body 140 when the water-spouting head body 140 is connected to the arm support 150. FIG. 13 is a diagram illustrating the degree of freedom of tilt of the posture of the water-spouting head body 140 when the water-spouting head body 140 is connected to the arm support 150. FIG. 13 is a diagram illustrating the degree of freedom of the posture of the water-spouting head body 140 when the water-spouting head body 140 is detached from the arm support 150. FIG. FIG. 11 is a diagram showing only a portion of a water-discharging nozzle 200 which is a water-saving pulsating or intermittent fluid generating device according to a second embodiment. FIG. 10 is a diagram simply illustrating a state in which water is supplied from a water supply pipe 110 to the water discharge nozzle 200 for pulsating fluid or intermittent fluid shown in FIG. 9 to cause a continuous fluid to flow. The vicinity of the discharge portion 250 is taken out and the liquid mass and gas mass flowing within the discharge portion 250 are illustrated for easy understanding. 13 is a diagram for briefly explaining the cleaning effect of a pulsating fluid or an intermittent fluid generated by a water discharge nozzle 200, which is a pulsating fluid or an intermittent fluid generating device according to Example 2. FIG. FIG. 1 is a diagram showing a conventional cleaning method using a simple continuous water flow. FIG. 13 is a diagram showing only a part of another configuration example of a water-discharging nozzle 200 which is a water-saving pulsating or intermittent fluid generating device. 15 is a diagram simply illustrating a state in which water is flowed from a water supply pipe 110 to a water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device shown in FIG. 14. FIG. FIG. 13 is a diagram showing only a portion of yet another configuration example of a water-discharging nozzle 200 that is a water-saving pulsating or intermittent fluid generating device. 17 is a diagram simply illustrating a state in which water is flowing from a water supply pipe 110 to a water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device shown in FIG. 16. FIG. FIG. 13 is a diagram showing only a portion of a water-discharging nozzle 200 that is a water-saving pulsating or intermittent fluid generating device, in yet another configuration example. 19 is a diagram simply illustrating a state in which water is flowing from a water supply pipe 110 to a water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device shown in FIG. 18. FIG. FIG. 1 is a diagram for explaining the prior art of Patent Document 1, Japanese Patent Laid-Open No. 11-152774. FIG. 1 is a diagram for explaining the prior art of Patent Document 2, JP 2008-51178 A.

An embodiment of the water discharge device of the present invention will be described. However, it goes without saying that the scope of the present invention is not limited to the specific uses, shapes, numbers, etc. shown in the following embodiment.

FIG. 1 is a diagram showing a configuration example of a water discharge device 100 according to a first embodiment of the present invention.
Fig. 1 is a diagram showing only a part of the water discharge device 100 according to the first embodiment of the present invention. Fig. 1 shows a water supply pipe 110, a spout 120, a hose body 130, a water discharge head body 140, a water discharge head body 141, a head connector 142, a cylindrical hole 1421, a fitting concave shape 1422, an inclined three-dimensional shape 1423, a cone-shaped inclined surface 1424, an arm support 150, an arm body 151, a support connector 152, a water supply operation unit 160, and a water discharge nozzle 200. Other necessary components as water supply equipment may be omitted.
The lower left side of Fig. 1 shows a vertical cross-sectional view of the water-spouting head body 140. Part of the fitted support connector 152 and arm main body 151 are also shown. The cross section is hatched. The lower right side of Fig. 1 shows a front view of the head connector 142 of the water-spouting head body 140. The fitted support connector 152 is also shown. The arm main body 151 is not shown.
FIG. 2 is an enlarged view of the head connector 142 of the water-spouting head body 140 and the support connector 152 of the arm support 150. As shown in FIG.
2(a) shows an enlarged view of the two parts fitted together. The upper left side shows a front view of the two parts fitted together, the upper right side shows a perspective view of the two parts fitted together (the perspective angle is different from the other figures and is shown at a horizontal angle), the lower left side shows a cross section taken along line A-A, and the lower right side shows a cross section taken along line B-B. The cross sections are hatched.
2(b) shows an enlarged view of the head connecting body 142 of the water-spouting head body 140. The upper left side shows a front view of the head connecting body 142, the upper right side shows a perspective view of the head connecting body 142, the lower left side shows a cross-sectional view taken along line CC, and the lower right side shows a cross-sectional view taken along line D-D. The cross sections are hatched.

Each component will be briefly described below.
The water supply pipe 110 is a pipe for supplying water, and is connected to a water facility from upstream to which water is appropriately supplied.
Other necessary components for the water supply facility are omitted, but it is assumed that the components that a normal water supply pipe 110 has are included.

The spout 120 is connected to the water supply pipe 110 , and receives water from the water supply pipe 110 and supplies it to the hose body 130 .
There is no limitation on the shape of the spout 120. The internal water passage is often cylindrical, but the horizontal cross section is not limited to being circular, and may be of various shapes such as elliptical or rectangular.
Although the spout 120 itself is not necessarily equipped with a movable mechanism, in this example, it is capable of swiveling. In this example, as shown in Fig. 4, the spout 120 has an upper spout body 121 and a lower spout body 122, and the lower spout body 122 is fixed to the water supply pipe 110, but the upper spout body 121 has a swivel mechanism relative to the lower spout body 122, and the upper spout body 121 can rotate in the horizontal direction. As a result, as described later, the water discharge nozzle 200 of the water discharge head body 140 has an improved degree of freedom of movement in three-dimensional space.

The hose body 130 is a flexible and freely bendable hose body that has the pressure resistance to withstand water pressure, and is made of a material and structure that is durable enough to prevent water leakage even when the water pressure changes during water supply or when the hose is repeatedly bent.
By adopting a hose body 130 with excellent flexibility, it is possible to follow the swivel movement of the spout 120, as shown in Figure 6 described below, and it is also possible to follow the tilt movement of the arm support 150, as shown in Figure 7 described below.Furthermore, as shown in Figure 8 described below, when the water-discharging head body 140 is detached from the arm support 150, the water-discharging head body 140 can move freely in three-dimensional space, thereby improving the freedom of movement of the water-discharging nozzle 200 of the water-discharging head body 140 in three-dimensional space.

The water discharge head body 140 is connected to the hose body 130 and discharges water guided from the water supply pipe 110 via the hose body 130.
The water-spouting nozzle 200 is a structure that provides a water outlet at the tip of the water-spouting head body 140. The water-spouting nozzle 200 may be a simple water outlet that is incorporated into the water-spouting head body 140, or may be a water-saving nozzle as described later in Example 2.

The water-spouting head body 141 is the housing of the water-spouting head body 140, and has an open bottom with the water-spouting nozzle 200 housed inside. In this example, it is a cylindrical body with an open bottom. A head connector 142 is provided on the outer peripheral wall.

The head connector 142 is a structure provided on a part of the water-spouting head main body 141 of the water-spouting head body 140 .
The head connector 142 is a connecting part that is detachably connected to the support connector 152 of the arm support body 150, and here, the connection between the head connector 142 and the support connector 152 has a concave shape and a convex shape, allowing the two to abut against each other.
1 and 2(b), the head connector 142 has a structure including a cylindrical hole 1421, a fitting concave shape 1422, an inclined three-dimensional shape 1423, and a cone-shaped inclined surface 1424. The head connector 142 is provided on the outer wall surface of the water-spouting head body 141 in a raised manner.

The cylindrical hole 1421 is a hole drilled in the outer wall surface of the water discharge head main body 141, and its inner diameter is large enough to receive the long axis of the support connector 152. Since the support connector 152 is pressed into the cylindrical hole 1421 while rotating and sliding against the wall surface of the inclined three-dimensional shape 1423, the support connector 152 may have an inner diameter that is the long axis of the support connector 152, or an inner diameter that is slightly larger than the long axis and has a margin. The depth of the cylindrical hole 1421 is not particularly limited, but in this example, it is set to a depth that does not reach the inner wall surface of the water discharge head main body 141. In other words, the head connector 142 does not affect the nozzle 200 mounted in the water discharge head body 140.

The fitting concave surface shape 1422 is a recessed shape provided on the bottom surface of the cylindrical hole 1421, and has a concave shape that receives the shape of the opposing surface side of the support connector 152. In other words, it is a recess shaped so that a part of the support connector 152 fits into it.
The shape of the mating concave surface shape 1422 is determined in combination with the shape of the support connector 152 of the arm support 150 .
For example, if the support connector 152 of the arm support 150 is cylindrical or cigar-shaped, the fitting concave shape 1422 of the head connector 142 will be a groove shape with a straight boundary line as shown in Fig. 2(b). The cross section is an arc along the outer surface of the support connector 152 as shown in the cross section of line CC in Fig. 2(b).
Also, for example, if the support connector 152 of the arm support 150 is ellipsoidal or rugby ball shaped, the mating concave shape 1422 of the head connector 142, although not shown, has a cross section that is an arc that follows the support connector, and has a groove shape with two opposing elliptical curves, or a groove shape with two opposing rugby ball-shaped curves.
In either pattern, if the two can be fitted together, excellent connection and support capabilities can be obtained.
In the following, an example will be described in which the support connector 152 of the arm support 150 is cigar-shaped and the fitting concave surface shape 1422 of the head connector 142 is a linear groove shape. The combination of the other shapes described above may be applied in the same manner as this example.

The inclined three-dimensional shape 1423 is a three-dimensional shape that guides the support connector 152 from the shoulder of the cylindrical hole 1421 to the fitting concave shape 1422 by rotating and sliding the support connector 152 while abutting against the inclined three-dimensional shape 1423 .
The shape of the outer surface of the inclined three-dimensional shape 1423 is designed to match the rotational motion trajectory of the support connector 152 as it rotates from the shoulder of the cylindrical hole 1421 to the mating concave shape 1422 and advances toward the bottom surface.
In this example, as shown in Fig. 2B, the inclined three-dimensional shape 1423 has two mountain surface shapes on both sides of the groove-shaped fitting concave shape 1422. Here, the respective mountain surface shapes are referred to as a first mountain surface shape and a second mountain surface shape. These are combined to form the inclined three-dimensional shape 1423.

These mountain-like shapes of the inclined three-dimensional shape 1423 are on a line connecting the shoulder of the cylindrical hole 1421 to the center of the groove-shaped inclined three-dimensional shape 1423, and have slopes on both sides that reach the boundary between the bottom surface and the groove-shaped inclined three-dimensional shape 1423. As can be seen from the cross-sectional view along line C-C, the ridgeline of the mountain-like shape descends linearly toward the boundary of the groove-shaped inclined three-dimensional shape 1423, but as can be seen from the cross-sectional view along line E-E, the slope of the mountain-like shape is a slightly concave curved surface. In other words, it is a fan-shaped inclined fan-shaped concave surface that has one wing that extends from the lowest point of the ridgeline of the mountain-like shape to the top of the ridgeline and the other wing that extends to the intersection with the cylindrical hole 1421 of the groove-shaped inclined three-dimensional shape 1423, but it is not a flat fan-shaped inclined fan-shaped concave surface that spreads out like a concave curved surface. The inclined three-dimensional shape 1423 has a shape in which the inclined fan-shaped concave surface spreads out to the left and right from the ridgeline. This creates a single hillside shape, which is placed on either side of the groove shape.

The head connector 142 has a cone-shaped inclined surface 1424 that slopes down into the cylindrical hole 1421 so as to surround the outer periphery of the cylindrical hole 1421 .
By providing this cone-shaped inclined surface 1424 on the head connector 142, even if the approach of the support connector 152 of the arm support 150 to the head connector 142 is slightly deviated from the exact position of the cylindrical hole 1421, the support connector 152 will naturally be guided into the cylindrical hole 1421 as long as it is in a position where it touches the inside of the cone-shaped inclined surface 1424.

The arm support 150 is a member extended from the spout 120 and supports the water-spouting head body 140 .
For example, if the spout 120 has an upper spout body 121 and a lower spout body 122, the side that rotates by swivel, that is, in this example, the arm support 150, is extended from the upper spout body 121.

In this example, the arm body 151 is attached to the spout 120 via the tilt mechanism 154. In this example, the arm body 151 is attached to the upper spout body 121 via the tilt mechanism 154.

The arm support 150 is configured to include at least an arm body 151 and a support connector 152 attached to the end of the arm body 151. Since the two are structured to be connectable, the water discharge head body 140 can be supported in a stable mounting position via the support connector 152.

The arm body 151 has a rod-like shape. It is sufficient if it has the rigidity to support the water discharge head body 140. The arm body 151 may have a so-called telescope structure and be extendable and retractable.

The support connector 152 is a member connected to the tip of the arm body 151 of the arm support 150, and is cigar-shaped in this example. In other words, the support connector 152 provides a convex shape that faces the head connector 142 provided by the water-spouting head body 140. In this example, the shape of the support connector 152 is a cigar-shaped convex shape.
There are several possible patterns for the movement of the arm body 151 and the support connector 152.
The first pattern is a pattern in which the support connector 152 is structured to be rotatable around the axis of the arm body 151. In the example of Fig. 3 described later, as shown in Fig. 3(b) , the support connector 152 at the tip of the arm body 151 is structured to be rotatable around the axis of the arm body 151.
In the second pattern, the support connector 152 is fixed relatively to the arm body 151, but rotates together with the arm body 151 around the axis of the arm body. As described above, the arm body 151 can perform swivel motion and tilt motion, but can also perform a motion of rotating (rotating) around its long axis. As for the motion, the support connector 152 is fixed relatively to the arm body 151, but the support connector 152 rotates together with the arm body 151, and as in the case of the first pattern, the arm body 151 and the support connector 152 can rotate together around the axis of the arm body 151, as shown in FIG. 3B described later.
In the third pattern, both the arm body 151 and the support connector 152 are relatively fixed, and the arm body 151 is fixed around its axis and does not rotate. In this case, as shown in Fig. 3(c) described later, the arm body 151 has swivel and tilt movements as described above, but is immobile around its axis and does not rotate.
The differences between the first, second, and third patterns described above affect the operation of connecting and disconnecting the water-spouting head body 140 and the arm support 150, which will be described later, but the operation of connecting and disconnecting the water-spouting head body 140 and the arm support 150, which will be described later, is possible with any pattern.

The water supply operating unit 160 is an operating part that controls the amount of tap water supplied. There are various types of water supply operating unit 160 as known in the art, and the present invention is not particularly limited to these types. For example, there is a lever cock type. In addition, if it is a simple on/off type, a sensor type is also possible.
The above is a brief description of each component.

Next, the operation of connecting and disconnecting the water-spouting head body 140 and the arm support body 150 will be briefly described.
3 is a simplified diagram showing the operation of connecting and disconnecting the water-spouting head body 140 and the arm support body 150. It can be seen that the head connector 142 is provided on the outer surface of the water-spouting head body 140, and the head connector 142 is provided on the surface opposite the support connector 152.
As shown in Figure 3, the macroscopic movement of the connection/detachment operation can be easily performed by the user by grasping the water-discharging head 140 and pulling it out from the arm support 150 to detach it, or by pushing it into the arm support 150 to connect it.

4 is an enlarged view simply explaining the head connector 142 of the water-discharging head body 140, particularly the mountain-like shape of the inclined three-dimensional shape 1423, and the operation of connecting and disconnecting the head connector 142 to and from the support connector 152 of the arm support body 150. Fig. 4 shows a front view of the vicinity of the support connector 152 of the arm support body 150 (a view of the head connector 142 of the water-discharging nozzle 140 as seen from the front in a direction rotated 90 degrees from the upper side of Fig. 3).
4 shows an arrow indicating a rotational movement, and the support connector 152 is shown to rotate, but this may be considered as a movement in the first and second patterns among the above-mentioned patterns of movement of the arm body 151 and the support connector 152. In the third pattern, since both the arm body 151 and the support connector 152 are stationary, the arrow may be considered as a movement in which the water-discharging nozzle 140 rotates relatively.

The mountain-like shape of the inclined three-dimensional shape 1423 of the head connector 142 and the operation of connecting and disconnecting the head connector 142 to and from the support connector 152 of the arm support 150 will be examined in detail.
As shown in sequence from Figure 4(a) to Figure 4(b) and then Figure 4(c), when the support connection body 152 of the arm support body 150 is pushed in while facing the head connection body 142 of the water-discharge head body 140, the outer surface of the support connection body 152 abuts against the inclined fan-shaped concave curved surface of this inclined three-dimensional shape 1423 (Figure 4(a)), and the support connection body 152 straddles the first and second mountain surface shapes of the inclined three-dimensional shape 1423, sliding and rotating along the inclined fan-shaped concave curved surfaces of these first and second mountain surface shapes, increasing the depth of penetration of the support connection body 152 into the cylindrical hole 1421 (Figure 4(b)), and the outer surface of the opposing surface of the support connection body 152 is guided so as to fit into the groove shape 1422 (Figure 4(c)).

Here, the connection between the water-spouting head body 140 and the arm support body 150 is achieved by a mechanism for connection and detachment in which the fitting concave shape 1422 of the head connecting body 142 and the concave shape of the support connecting body 152 fit together. In this example, an example will be described in which magnetic force is used to ensure and easily perform the fitting connection and detachment of the two.
If a magnet is built into either the mating concave shape 1422 of the head connector 142 or the support connector 152, and the other is a magnetic material such as stainless steel, or if magnets are built into both the mating concave shape 1422 of the head connector 142 and the support connector 152, and are of opposite polarity, the two are connected to each other by magnetic force, and can be freely switched between connection and disconnection, as shown in Fig. 3(a). In other words, if the magnetic force is of an appropriate strength, the water-spouting head body 140 can be sufficiently supported at the tip of the arm support 150, and if the two are connected to each other by magnetic force, the user can grasp the water-spouting head body 140 with his or her hand and pull it out from the tip of the arm support 150 to separate the two against the magnetic force.

In this way, the user can easily attach and detach the water-spouting head body 140 to and from the arm support body 150 by hand.
FIG. 5 is a diagram showing how the water-spouting head 140 can be freely attached and detached at any height depending on the tilt position of the arm support 150.
Figure 5(a) shows that the water-spouting head 140 can be detached from the head connector 142 when the tilt position of the arm support 150 is upward, Figure 5(b) shows that the water-spouting head 140 can be detached from the head connector 142 when the tilt position of the arm support 150 is approximately horizontal, and Figure 5(c) shows that the water-spouting head 140 can be detached from the head connector 142 when the tilt position of the arm support 150 is downward.
Due to this detachment mechanism between the water-spouting head body 140 and the arm support 150, in the water-spouting device of the present invention, the posture of the water-spouting head body 140 can be freely adjusted even when the water-spouting head body 140 is connected to the arm support 150, and further, when the water-spouting head body 140 is detached from the arm support 150, the posture of the water-spouting head body 140 can be freely adjusted over a wider range.

As described above, the macro position of the water-spouting head body 140 can be changed in three dimensions.
FIG. 6 simply shows a state in which the support connector 152 is actually swiveled to the left and right by changing the contact angle while the head connector 142 is fixed.
7 shows the vertical connection between the support connector 152 of the arm support 150 and the head connector 142 of the water-spouting head body 140. This is a view from the side.
7(a) to 7(c) show the water-spouting head body 140 and the arm support 150 from the side, and simply show the state in which the support connector 152 is tilted up and down. Note that the water-spouting head body 140 is shown in its vertical cross section so that the state in which the support connector 152 of the arm support 150 and the head connector 142 of the water-spouting head body 140 are vertically connected can be easily seen. Also, the position of the water-spouting head body 140 is shifted because it is difficult to see when the figures overlap. In reality, it can be said that the water-spouting head body 140 can move in a so-called "vertical swiveling" manner.
As shown in FIG. 7, the support connector 152 of the arm support 150 can abut against the head connector 142 at any angle within the movable range, demonstrating the ability to be freely connected in the vertical direction.

When Figures 6 and 7 are taken together, it can be seen that the angle between the head connector 142 and the support connector 152 can be freely adjusted in three dimensions, so the mounting position of the water-spouting head body 140 can be adjusted, and the water-spouting angle of the water-spouting nozzle 200 of the water-spouting head body 140 can be adjusted.

Next, FIG. 8 is a diagram for explaining the degree of freedom of the posture of the water-spouting head body 140 when the water-spouting head body 140 is detached from the arm support body 150.
As shown in Figure 8, once the water-discharging head body 140 is detached from the arm support 150, the water-discharging head body 140 can be freely moved by hand within three-dimensional space while remaining connected to the highly flexible hose body 130, and therefore, although there is a limit to the length of the hose body 130, the water-discharging nozzle 200 can be placed in any desired position and at any desired angle.
After using the water-spouting head body 140 by freely moving it in three-dimensional space with one's hand to spout water, the water-spouting head body 140 can be easily supported and fixed by returning the water-spouting head body 140 to the arm support body 150 and supporting it again.

As a second embodiment, an example will be described in which a water-spouting nozzle 200 that is a water-saving pulsating fluid or intermittent fluid generating device is adopted as the water-spouting nozzle 200 attached to the water-spouting head body 140.
Fig. 9 is a diagram showing only a part of the water discharge nozzle 200 which is a water-saving type pulsating fluid or intermittent fluid generating device of Example 2. Fig. 9 shows a spray mechanism 210, a spatial cavity 220, a liquid introduction pipe 230, an air passage 240, a through hole 241, and a discharge part 250 for the pulsating fluid or intermittent fluid.

The liquid introduction pipe 230 is connected to a liquid supply device for the continuous fluid, and is a pipe that receives the continuous fluid and draws it downward. In FIG. 9, it is depicted as a space above the injection mechanism 210, but it is a pipe that connects the water supply pipe 110 and the injection mechanism 210. In FIG. 9, the water supply pipe 110 and its attachment members are omitted.

The injection mechanism 210 is a mechanism that ejects the continuous water flow forcefully as an injection liquid flow by narrowing the area through which the continuous water flow passes. In this configuration example, the injection mechanism 210 is provided on the lower surface of the liquid introduction pipe 230, and is a member that receives the continuous fluid from the liquid introduction pipe 230, narrows the diameter, and ejects it downward.
The spray angle of the spray mechanism 210 is set so that the spray destination or spray destination hits the introduction hole 241 or its vicinity, and while bouncing back, part of it becomes a water current that flows downward while covering the side wall surface including the introduction hole 241.

The spatial cavity 220 has the injection mechanism 210 disposed on the upper surface and the discharge part 250 for the pulsating fluid or intermittent fluid disposed on the lower surface, forming an enclosed space filled with gas flowing in from the introduction hole 241. The only inflows and outflows to the spatial cavity 220 are the inflow of the injection fluid from the injection mechanism 210, the inflow of outside air from the introduction hole 241, and the outflow of the pulsating fluid or intermittent fluid from the discharge part 250, and the rest are closed to maintain airtightness.

FIG. 10 is a diagram simply showing a state in which water is supplied from the water supply pipe 110 to the water discharge nozzle 200 for pulsating fluid or intermittent fluid shown in FIG. 9 to cause a continuous fluid to flow.
FIG. 13 is a diagram simply illustrating a state in which liquid is supplied from a liquid supply device to cause a continuous fluid to flow.
As shown in FIG. 10, the basic movement is that the ejected fluid flows forcefully from the ejection mechanism 210 into the space cavity 220, which is maintained airtight, and water flows out from the exhaust section 250 while drawing in the gas inside the space cavity 220.
The injection fluid flowing in from the injection mechanism 210 is discharged from the discharge part 250 while drawing in and pushing away the air inside the spatial cavity 220, so that the air pressure inside the spatial cavity 220 drops. Therefore, with the drop in air pressure, outside air is blown in at high speed from the ventilation path 240 via the introduction hole 241.

The injection mechanism 210 is angled so that the destination of the injection fluid or the destination of the injection droplets contacts the introduction hole 241 or its vicinity, and while bouncing, a part of the injection fluid covers the side wall surface including the introduction hole 241 and flows downward as a water current. In the configuration example of FIG. 10, the destination of the injection fluid or the destination of the injection droplets is slightly above the introduction hole 241. When the injection fluid hits the side wall surface of the spatial cavity 220, it is reflected and spreads, but a part of it flows along the side wall surface of the spatial cavity 220. Because the side wall surface of the spatial cavity 220 includes the introduction hole 241, as shown in FIG. 10, a state appears in which the opening of the introduction hole 241 is sealed by the injection fluid flowing downward.

Now, attention will be paid to the change in air pressure within the spatial cavity 220 .
10, the ejected fluid flows downward in the spatial cavity 220 while drawing in and pushing out the air inside, causing a drop in the air pressure in the spatial cavity 220. It will be understood that the gas is pushed downward from the spatial cavity 220 together with the ejected fluid, causing a drop in the air pressure in the narrow, sealed spatial cavity 220.

Meanwhile, outside air is blown into the cavity 220 from the air passage 240 through the through hole 241. This blowing of outside air is caused by a drop in air pressure within the cavity 220. When the outside air is blown into the cavity 220, the lowered air pressure within the cavity 220 is restored.
Here, this decrease in air pressure and recovery of air pressure do not maintain an orderly equilibrium state, and since there is a liquid flow film of the injected fluid blocking the opening of the introduction hole 241, the states shown on the left and right of Figure 10 (b) are repeated alternately.

The state on the left side of Figure 10(b) is a state in which the opening of the introduction hole 241 is sealed with a liquid flow film formed by the injected fluid. In this state, the blowing of outside air through the introduction hole 241 momentarily stops, and air is pushed downward from within the space cavity 220, causing the air pressure within the narrow, sealed space cavity 220 to decrease.

10B is a state in which the air pressure inside the spatial cavity 220 drops significantly, and the force of drawing the outside air into the spatial cavity 220 increases, causing the outside air to overcome the liquid flow film sealing the opening of the introduction hole 241, tearing the liquid flow film, and blowing into the spatial cavity 220. In this state, the liquid flow film of the jetted fluid is momentarily interrupted, and the outside air blown in from the introduction hole 241 is sandwiched in between, and the air pressure inside the spatial cavity 220 is restored by the blowing in of the outside air.
As the air pressure inside the spatial cavity 220 recovers, the force of drawing the outside air into the spatial cavity 220 becomes weaker, and eventually the momentum of the liquid flow film flowing along the opening of the through hole 241 becomes stronger, returning to the state shown on the left side of Figure 10 (b) in which the liquid flow film seals the opening of the through hole 241.
In this way, the repeated fluctuations between the state of air pressure decreasing without outside air being blown in (left side of Figure 10(b)) and the state of air pressure recovering with outside air being blown in (right side of Figure 10(b)) create a rhythm of varying strengths of air being blown in, generating a pulsating or intermittent flow of foamy water from the injected fluid.

Regarding the relationship between the introduction hole 241 and the injected fluid, in the configuration examples of Figures 9 and 10, in the state on the left side of Figure 10(b), a liquid flow film of the injected fluid flows along the front surface of the introduction hole 241, completely blocking it and eliminating the amount of airflow. However, instead of flowing along the front surface of the introduction hole and completely blocking it, the liquid flow film may flow past the front surface of the introduction hole, leaving a small gap, and although air may pass through this small gap, the amount of airflow may be limited. This case will be explained in Example 2.

In addition, because the gas in the spatial cavity 220 and the outside air are blown into the jet fluid from the side introduction hole 241, the liquid passing through the spatial cavity 220 may be mixed with the outside air and turn into a foamy outside air-mixed liquid. At the moment when the blowing of the outside air from the introduction hole 241 becomes particularly strong, the jet fluid may be broken or thinned by the outside air. As a result, the jet fluid passing through may become a pulsating flow or a pulse-like foam liquid mass that is interrupted intermittently. In particular, if the shape of the jet fluid itself is originally jetted as a thin liquid film, the repeated strength and weakness of the flow of the outside air blown into the jet fluid may cause a break and a liquid mass may easily be formed.

The generated liquid mass also entrains and pushes the gas in the spatial cavity 220 downstream until it reaches the entrance of the drainage channel 150. During this time, the air pressure in the spatial cavity 220 repeatedly increases and decreases. Therefore, when the air pressure in the spatial cavity 220 is relatively strong, the foamy liquid mass tends to push the gas near the drainage channel 150 into the drainage channel 150, and the gas pushed in by the liquid mass may be pushed into the drainage channel 150 as a gas mass.

FIG. 11 illustrates the vicinity of the discharge portion 250 so that the liquid mass and the gas mass flowing within the discharge portion 250 can be easily understood.
11, a gas mass is forced ahead of the liquid mass in the drainage channel 150. When a gas mass is present between liquid masses in this way, it is as if the preceding liquid mass and the succeeding liquid mass are independent, with the gas mass entering between them, and the gas mass is discharged from the discharge portion 250 to the outside of the system as a pulsating flow or a pulsed intermittent flow.

For ease of understanding, FIG. 11 shows the foam water as being formed as completely separate liquid masses within the discharge section 250, but there are cases where the foam water forms separate liquid masses like this, or where there are no complete breaks or the liquid mass forms a continuous mass with edges connected to the liquid mass at the rear. In any case, the flow may be a pulsating or intermittent flow rather than a uniform continuous fluid.

Figure 12 is a diagram that briefly explains the cleaning effect when the pulsating fluid or intermittent fluid generated by the water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device according to Example 2, is water and is used for cleaning purposes. In order to explain the cleaning effect of the pulsating fluid or intermittent fluid, Figure 12 illustrates a moment in time and emphasizes that the fluid continues to hit the surface as a foamy liquid mass.

Figure 12 (a) shows how the foamy water flow of the pulsating or intermittent fluid generated by the water discharge nozzle 200, which is a pulsating or intermittent fluid generating device according to Example 2, begins to strike dirt on the surface of an object. Here, an independent liquid mass of the pulsating or intermittent fluid flowing down at high speed begins to strike.

Figure 12 (b) shows the state when the leading foamy liquid mass hits the dirt and collapses, with the energy of the foamy liquid mass being absorbed by the dirt. One of the independent foamy liquid masses hits the dirt and pushes it out laterally, collapsing it without bouncing off.

Figure 12 (c) shows the next arriving foamy liquid mass beginning to impact.

Figure 12(d) shows how the subsequent foamy liquid mass hits the dirt and collapses, with the energy of the foamy liquid mass being absorbed by the dirt. The preceding foamy liquid mass exists in contact with the dirt, but because it is foamy water, no rising water film is formed, and the top surface of the dirt is nearly exposed. The subsequent foamy liquid mass hits this dirt, collapsing it without bouncing off, pushing the dirt further out in the lateral direction.

Fig. 12(e) shows the state where the next foamy liquid mass begins to hit, and Fig. 12(f) shows the state where the subsequent foamy liquid mass hits the dirt, collapses, and the energy of the foamy liquid mass is absorbed by the dirt. The dirt is pushed further in the lateral direction than in the state of Fig. 12(d). In this way, independent foamy liquid masses continue to hit the dirt intermittently, so that the dirt is efficiently pushed away in the lateral direction.
Since it is foamy water, no rising water film is formed by the preceding foam mass, and the top surface of the dirt is always nearly exposed, so that the foam masses that arrive one after another continue to strike the dirt directly, and the energy of the foam masses is continuously applied to the dirt. In this way, the foamy water flow generated by the pulsating fluid or intermittent fluid generating device 200 exhibits a high cleaning effect.

On the other hand, FIG. 13 shows a conventional cleaning method using a simple continuous water flow.
FIG. 13(a) is a diagram showing how a continuous water stream begins to strike dirt on an object surface.

Figure 13(b) shows the moment immediately after the continuous water flow hits dirt on the surface of an object. As shown in Figure 13(b), part of the continuous water flow that hits the dirt bounces upward and collides with the subsequent continuous water flow, canceling out the momentum. In addition, splashes are likely to be scattered around.

Figure 13(c) shows the next stage after Figure 13(b). The water continues to bounce off the dirt, and the momentum of the water flows continues to cancel each other out. There is also a lot of splashing of water into the surrounding area, and a water film begins to form on the dirt.

Figure 13(d) shows the next stage after Figure 13(c). The water flow continues to bounce off the dirt, and the momentum of the water flows continues to cancel each other out. Also, a water film is formed on the dirt, and part of the continuous water flow tends to flow sideways, sliding on the water film.

Figure 13(e) shows the next stage after Figure 13(d). The water flow continues to bounce off the dirt, and the momentum of the water flows continues to cancel each other out. A water film also forms on the dirt, and part of the continuous water flow slides on the water film, causing the dirt to become hidden under the water film.

When the state reaches FIG. 13(e), the state of FIG. 13(e) is continued thereafter.
It can be seen that the foamy water flow generated by the water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device according to Example 2 shown in Figure 12, has a higher cleaning effect than the cleaning effect of the conventional simple continuous water flow shown in Figure 13.
As described above, a pulsating fluid or an intermittent fluid is generated from a continuous fluid by applying the principle of the pulsating fluid or intermittent fluid generating device.

In addition, as the water-discharging nozzle 200 which is a water-saving pulsating or intermittent fluid generating device, in addition to the configurations shown in Figs. 10 and 11, there is also an example configuration shown in Fig. 14.
In the configuration example shown in FIG. 14, compared to FIG. 10, the injection angle of the injection mechanism 210 is set to be approximately parallel or at a slight angle to the side wall surface where the introducing hole 241 is provided.
In the configuration example of FIG. 14, a through hole 241 is provided in a side wall surface positioned approximately parallel to the ejection destination of the ejection mechanism 210.

FIG. 15 is a diagram simply showing a state in which water is made to flow from a water supply pipe 110 to a water discharge nozzle 200 which is a generating device for generating a pulsating fluid or an intermittent fluid shown in FIG.
As shown in Fig. 15, the basic movement is that a powerful water flow from the jet mechanism 210 flows into the airtight spatial cavity 220, and the jet fluid shot out from the jet mechanism 210 flows along the side wall surface of the spatial cavity 220 substantially parallel to or at a slight angle to the side wall surface on which the introduction hole 241 is provided, and the opening of the introduction hole 241 is sealed by the jet fluid flowing downward. Due to the influence of the internal air pressure, as shown in Fig. 15(a), the blowing of outside air from the introduction hole 241 into the spatial cavity 220 through the air vent 240 and the closing of the opening of the introduction hole 241 by the liquid flow film of the jet fluid alternately occur, and the states shown on the left and right in Fig. 15(b) are repeated alternately.

FIG. 16 shows an example of a water-discharging nozzle 200 that is a water-saving pulsating or intermittent fluid generating device.
The jetting angle of the jetting mechanism 210 shown in FIG. 16 is set so that the jet destination or jet droplet destination of the jetted fluid is the introducing hole 241 or its vicinity, and collides with the outside air blown in from the introducing hole 241 .

FIG. 17 is a diagram simply illustrating a state in which water is supplied from a water supply device such as a water faucet to the pulsating or intermittent fluid generating device 200 shown in FIG. 16 to generate a water flow.
As shown in Fig. 17, the basic movement is that a water flow from the injection mechanism 210 flows into the airtight space cavity 220, and since the injection angle is set so that the injection destination or injection droplets of the injection fluid are at or near the introduction hole 241, a part of the injection fluid being injected with force or the injection droplets collide with the outside air being blown in with force at or near the introduction hole 241. Note that this collision is not caused by accidental scattering of the droplets inside the injection mechanism 210 near the introduction hole, but is controlled to intentionally cause continuous collisions by the angle of the injection mechanism 210.

As shown in FIG. 17, the injected fluid flows downward in the spatial cavity 220 while drawing in and pushing out the air inside, causing a drop in the air pressure inside the spatial cavity 220. On the other hand, as shown in FIG. 17, outside air is blown into the spatial cavity 220 from the air passage 240 through the through hole 241, causing a collision between the injected fluid and the outside air being blown in. This collision and the drop in air pressure and the recovery of air pressure inside the spatial cavity do not maintain an orderly equilibrium state, and the amount and direction of the fine powder droplets are not completely constant during the collision, and subtle differences occur from moment to moment. Since this collision has momentum, the influence of fluctuations and unevenness in the flow of the injected fluid and fluctuations and density in the flow of the outside air causes the air inside to vibrate or pulsate dynamically. Therefore, the states shown on the left and right of FIG. 17(b) are repeated alternately.

FIG. 18 shows an example of a water-discharging nozzle 200 that is a water-saving pulsating or intermittent fluid generating device.
Of the components shown in FIG. 18, the jetting angle of the jetting mechanism 210 is such that the jet destination or jet droplet destination of the jet fluid is slightly below the introducing hole 241 .

FIG. 19 is a diagram simply illustrating a state in which water is supplied from a water supply device such as a water faucet to the pulsating or intermittent fluid generating device 200 shown in FIG. 18 to generate a water flow.
As shown in Fig. 19, the basic movement is that a water flow from the injection mechanism 210 flows into the airtight space cavity 220, and the injection angle is set so that the injection destination or injection droplets of the injection fluid hit the wall surface slightly below the introduction hole 241, but if the size of the internal air cavity 220 is not excessively large, and depending on the shape and angle of the wall surface, the injection fluid may be reflected and scattered with force. The splashed injection droplets then cover the introduction hole 241. Here, it is assumed that the shape and angle of the air cavity 220 satisfy the scattering conditions.
Note that this scattering of the injected water flow is not the result of accidental scattering of internal droplets near the introduction hole, but is intentionally controlled so that the introduction hole 241 is sealed continuously by the relationship between the angle of the injection mechanism 210 and the shape and angle of the air cavity 220.

19B shows a state in which the opening of the introducing hole 241 is sealed by a liquid flow film formed by the scattering jet liquid flow. In this state, the blowing of outside air from the introducing hole 241 momentarily stops or decreases, while air is pushed downward from the space cavity 220, so that the air pressure in the narrow and sealed space cavity 220 decreases.
As shown in the left diagram of FIG. 19B , the ejected fluid flows downward within the spatial cavity 220 while drawing in and pushing out the air therein, causing a drop in the air pressure within the spatial cavity 220 .

On the other hand, as shown on the right side of FIG. 19(b), when the air pressure drop becomes large, outside air is blown into the spatial cavity 220 from the introduction hole 241, breaking through the scattering water flow sealing the introduction hole 241. In other words, the state on the right side of FIG. 19(b) is a state in which the air pressure drop in the spatial cavity 220 becomes large, and the force of drawing the outside air into the spatial cavity 220 becomes large, so that the outside air overcomes the momentum of the scattering jet fluid sealing the introduction hole 241 and is blown into the spatial cavity 220 from the introduction hole 241. In this state, the scattering jet fluid is blown away in an instant, and the air pressure in the spatial cavity 220 is restored by the blowing in of the outside air.

As the air pressure inside the spatial cavity 220 recovers, the force of drawing the outside air into the spatial cavity 220 decreases, and the momentum of the scattered jet fluid that reaches the opening of the introduction hole 241 eventually becomes stronger, and the jet fluid or jet droplets reach the vicinity of the opening of the introduction hole 241, returning to the state shown on the left side of Figure 19 (b).

In this way, the repeated fluctuations between the air pressure drop state with less outside air blowing in on the left side of Figure 19(b) and the air pressure recovery state with more outside air blowing in on the right side of Figure 19(b) create a rhythm of varying strengths in the blowing of outside air, generating a pulsating or intermittent flow of foamy water from the jetted fluid. As a result, the jetted fluid passing through also becomes a pulsating flow, or an intermittent pulse-like flow that is interrupted intermittently.

It will be understood that various modifications may be made without departing from the scope of the present invention. The scope of the present invention is therefore limited only by the scope of the appended claims.

REFERENCE SIGNS LIST 100 Water discharge device 110 Water supply pipe 120 Spout 130 Hose body 140 Water discharge head body 141 Water discharge head body 142 Head connector 150 Arm support 151 Arm body 152 Support connector 160 Water supply operation unit 200 Water discharge nozzle

Claims (14)

A spout that supplies water from a water supply pipe;
a flexible and bendable hose body connected to the spout;
A water discharge head body connected to the hose body and discharging water guided from the water supply pipe;
An arm support extending from the spout;
In a configuration including a water supply operation unit,
The arm support includes an arm body of the arm support, and a support connector at the tip of the arm body , the surface facing the water spouting head body being a cylindrical shape or a curved three-dimensional shape having a long axis,
The water discharge head body is provided with a cylindrical hole having an inner diameter large enough to receive the long axis of the support connector, a fitting concave shape provided on the bottom surface of the cylindrical hole to receive the shape of the opposing surface side of the support connector, and a head connector including an inclined three-dimensional shape that guides the support connector by rotating and sliding from the shoulder of the cylindrical hole to the fitting concave shape,
A water-discharge device characterized in that the water-discharge head body is removably supported from the arm support via a connection between the support connector of the arm support and the mating concave shape of the head connector of the water-discharge head body. The water discharge device according to claim 1, characterized in that the shape of the outer surface of the inclined three-dimensional shape of the water discharge head body is shaped to match the rotational motion trajectory of the support connector as it rotates from the shoulder of the cylindrical hole to the mating concave shape and advances toward the bottom surface. The water-discharging device described in claim 2, wherein the inclined three-dimensional shape of the head connecting body of the water-discharging head body is a mountain-like shape with its ridge line on a line connecting the shoulder of the cylindrical hole to the center of the groove shape of the mating concave surface shape and its bottom having slopes on both sides that reach the boundary line between the bottom surface and the groove shape, and there are two mountain-like shapes, a first mountain-like shape and a second mountain-like shape, and the first mountain-like shape and the second mountain-like shape face each other on either side of the groove shape of the mating concave surface shape. The water-discharging device described in claim 3, characterized in that when the support connection body of the arm support is pushed in facing the head connection body of the water-discharging head body, the outer surface of the support connection body abuts the inclined three-dimensional shape, and then the support connection body slides and rotates along the slopes of the first mountain-like shape and the second mountain-like shape while spanning the first mountain-like shape and the second mountain-like shape, increasing its penetration depth into the cylindrical hole of the head connection body, and the outer surface of the opposing surface of the support connection body is guided so as to fit into the groove shape of the mating concave shape of the head connection body. The water discharge device according to any one of claims 1 to 4, characterized in that the head connector has a cone-shaped slope that surrounds the outer periphery of the cylindrical hole and drops into the cylindrical hole. A water-discharge device as described in any one of claims 1 to 5, characterized in that the support connection body of the arm support is structured to be rotatable around the axis of the arm main body, and the support connection body rotates and slides as the water-discharge head body is pushed in. A water-discharge device as described in any one of claims 1 to 5, characterized in that the support connection body of the arm support is fixed and cannot rotate around the axis of the arm body, and when the water-discharge head body is pushed in, the support connection body is stationary and the water-discharge head body side rotates and slides relative to the support connection body. The support link of the arm support is cylindrical or cigar-shaped;
A water-discharging device as described in any one of claims 1 to 7, characterized in that the mating concave shape of the head connector of the water-discharging head body is a groove shape whose cross section is an arc that follows the support connector and has opposing straight lines that match a part of the support connector. The support connector of the arm support is in the shape of an ellipsoid or a rugby ball,
A water-discharging device as described in any one of claims 1 to 7, characterized in that the mating concave shape of the head connector of the water-discharging head body is an arc whose cross section follows the support connector, and has a groove shape with opposing curves that match a part of the support connector. The water discharge device according to any one of claims 1 to 9, characterized in that the support connector at the tip of the arm support and the head connector of the water discharge head are either made of a material with magnetic properties, one of which is a magnet, and the other of which is magnetically attracted to each other, or both are magnetic and arranged in a magnetic manner so that they can be attracted to each other, and are connected detachably by magnetic force. The water discharge device according to any one of claims 1 to 10, characterized in that the arm support is structured with a movable mechanism for at least vertical tilt with respect to the spout at the connection between the arm support and the spout. The water discharge device according to claim 11 , characterized in that the spout is structured with at least a swivel movable mechanism at least in a portion below the connection portion with the arm support. The water discharge device according to any one of claims 1 to 12, characterized in that it is equipped with a sensor related to water usage and an IoT system that stores or transmits data obtained from the sensor. The water-spouting head body includes a water-spouting nozzle for generating a pulsating fluid or an intermittent fluid,
The water discharge nozzle is a closed space located downstream of the injection mechanism for injecting a fluid such as a liquid or gas, and is provided with a fluid discharge part below the closed space, and a vent hole on the side of the closed space that leads to an air passage for conducting outside air, and is provided with a spatial cavity filled with outside air,
A water-discharging device as described in any one of claims 1 to 13, characterized in that the jet fluid is formed so that a portion of the jet fluid flows while temporarily covering the introduction hole due to changes in the destination of the jet fluid of the injection mechanism or due to collision of the jet fluid with the wall surface of the spatial cavity, thereby restricting the amount of outside air passing through the introduction hole, and the repeated fluctuations between a temporary pressure drop in the spatial cavity caused by the jet fluid flowing downward within the spatial cavity and a temporary pressure recovery in the spatial cavity due to the blowing of outside air from the introduction hole create a rhythm of strength and weakness in the blowing of the outside air, thereby generating a pulsating flow or intermittent flow of the fluid from the injection mechanism.

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