JP2007130578A - Apparatus for discharging water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for discharging water, in which a stroke of repetitive movements of a water discharge cylindrical body can be changed according to the desire or the like of a user. <P>SOLUTION: The apparatus for discharging water is provided with: a housing having a columnar space therein; a core which is moved in the columnar space while dividing the columnar space into first and second pressure chambers and has a flow passage therein; the water discharge cylindrical body having a water discharge flow passage which communicates with the flow passage of the core and reaches the outside of the housing; a first water inlet for introducing a fluid into the first pressure chamber: a second water inlet for introducing the fluid into the second pressure chamber; a first introduction port for introducing the fluid into the flow passage of the core from the first pressure chamber; a second introduction port for introducing the fluid into the flow passage of the core from the second pressure chamber; valve elements for changing the opening degrees of the first and second introduction ports; a control means for reversely displacing the opening degrees which are different from each other, of the first and second introduction ports with each other when the moving direction of the core is reversed; and a variable terminal end which is abutted on at least a part of the control means to reversely displace the opening degrees of the first and second introduction ports with each other and in which the length to be projected into the columnar space is made variable. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water discharge device, and more particularly, to a water discharge device that enables an automatic reciprocating operation that repeatedly changes a water discharge position such as a shower nozzle or a water spray nozzle.

  There is a growing need for shower systems and water discharge / spraying systems for relaxation and beauty and health promotion. In these applications, for example, there is an approach that promotes a massage effect or the like by modulating a water flow at a relatively high speed of several tens of hertz or more using a swirling flow or the like. On the other hand, for example, if the water discharge position and direction of the shower nozzle are repeatedly changed at a relatively slow speed of several hertz or less, for example, the water discharge is uniformly sprayed to a predetermined range of the human body to promote the relaxation effect, etc. Is possible.

  Similar needs exist widely in consumer equipment, industrial or agricultural applications, and require slow reciprocating motions for a variety of purposes such as cleaning, rinsing, cooling, humidification, pretreatment, and cultivation. It is said that.

  It is possible to use electric means such as motors and solenoids for reciprocal operation, but in order to install it in a system that discharges water in a bathroom, etc., measures for securing a power source, electric shock, and electric leakage are required. There are many problems to be solved in terms of cost and reliability.

  On the other hand, if the reciprocating operation can be realized by hydraulic power, electricity and lubricating oil are unnecessary, and improvement can be expected from many viewpoints such as initial cost, running cost, reliability, and maintainability.

  A combination of a piston and a four-way valve has been disclosed as a shower device that can move up and down (Patent Document 1). This shower device moves a shower head up and down via a wire by moving a piston provided in a cylinder up and down by water pressure. The switching of the upward / downward movement of the piston is performed by switching the water supply passage for the cylinder with a four-way valve.

However, in the case of this shower apparatus, the cylinder and the four-way valve are provided separately, and the system is large and complicated. Moreover, since the flow path becomes long, there is room for improvement in that the pressure loss is large and the water discharge force is reduced.
JP-A-2-134119

In order to solve this problem, the present inventors have invented a water discharge device that has a compact and simple structure and enables repetitive linear motion using hydraulic power based on a novel idea.
On the other hand, considering the actual usage of the water discharge device that enables repetitive linear movements in this way, for example, when performing a shower or a hydromassage, it is possible to perform repetitive operations according to the physique and preferences of the user. It is even more convenient if the stroke can be changed.

  The present invention has been made on the basis of recognition of such a problem, and an object thereof is to provide a water discharger capable of changing a stroke of repetitive operation according to a user's preference or the like.

In order to achieve the above object, according to one aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A variable end that reverses the magnitude relationship of the opening degree of the first and second inlets by contacting at least a part of the control means, and the amount of protrusion in the space is variable;
There is provided a water discharge device characterized by comprising:

According to another aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means having a magnet and reversing the magnitude relationship of the opening degree of the first and second inlets when reversing the moving direction of the core;
A control magnet for changing the position of reversing the magnitude relationship of the opening degree of the first and second inlets by selectively acting either one of attractive force and repulsive force on the magnet;
There is provided a water discharge device characterized by comprising:

According to another aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
The first and second portions have different projection amounts in the space, and at least a part of the control means is brought into contact with either one of the first and second portions. By reversing the magnitude relationship of the opening of the second inlet and changing the position of the first and second parts, it is selected whether the control means abuts on the first or second part A side wall made possible;
There is provided a water discharge device characterized by comprising:

According to another aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
With
The housing has first and second portions with different protrusion amounts in the space,
The control means reverses the magnitude relation of the opening degree of the first and second inlets by contacting either one of the first and second parts,
By rotating the core around an axis parallel to the direction of movement, it is possible to select which of the first and second portions the control means abuts on. A water discharge device is provided.

  According to the present invention, it is possible to provide a water discharge device that enables repetitive linear motion using hydraulic power with a compact and simple structure, and that can change the stroke of repetitive motion according to the user's preference. Yes, there are significant industrial advantages.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view illustrating a water discharge device according to an embodiment of the present invention. That is, the figure (a) is a side view of a water discharging apparatus, and the figure (b) is the sectional view.

  The water discharge device 100 according to this embodiment includes a housing 102 and a water discharge cylinder 180 protruding from the housing 102. A terminal adjustment mechanism 200 is provided on the side surface of the housing 102 facing the water discharge cylinder 180.

  And the water discharge flow path 182 is provided in the water discharge cylinder 180, and the water discharge D is obtained. 1 shows the water discharge device in which the water discharge cylinder 180 protrudes from only one side of the housing 102, but the present invention is not limited to this, and as will be described later with a specific example, the water discharge tube The body 180 may be provided on both sides of the housing 102.

  The housing 102 is provided with two water inlets 112 and 114. A water inlet path from the water supply pipe 700 is connected in parallel to the water inlets 112 and 114. That is, the water supply pipe 700 is bifurcated into two branch pipes having the same thickness and length, and these branch pipes are connected to the water inlets 112 and 114, respectively. A water supply valve 600 is provided upstream of the branch position in the water supply pipe 700. The water supply valve 600 adjusts the flow rate of the fluid flowing through the water supply pipe 700. When the water supply valve 600 provided in the water supply pipe 700 is opened, the fluid W such as water is supplied from the water supply pipe 700 to the water inlets 112 and 114 at substantially the same pressure. As a result, the water discharge D can be discharged from the water discharge flow path 182 while reciprocating left and right as the water discharge cylinder 180 is represented by the arrow M. Therefore, if the housing 102 is fixed and a nozzle, a shower head, or the like is provided at the tip of the water discharge cylinder 180, it can be used as a water discharge device in which the water discharge position changes repeatedly.

And in this embodiment, the stroke of the reciprocating motion of the water discharging cylinder 180 can be adjusted by providing the termination | terminus adjustment mechanism 200. FIG.
That is, the end adjustment mechanism 200 in this specific example includes a variable end 202 that penetrates the side wall of the housing 102 and a seal mechanism 204 that prevents leakage of water. The variable end 202 is supported by the housing 102 and the amount of protrusion into the internal space of the housing 102 is variable. Specifically, for example, by allowing the variable end 202 to be supported on the housing 102 by means of a screw fitting means (not shown) or the like, the protruding amount can be made variable.

  Further, as the seal mechanism 204, for example, an O (O) ring made of rubber or resin can be provided. However, the seal mechanism 204 may be provided as necessary. For example, if the liquid tightness in the housing 102 is secured by, for example, screw fitting means provided between the housing 102 and the variable terminal 202, the seal mechanism 204 is provided. There is no need.

  According to this specific example, the stroke of the reciprocating motion of the water discharge cylinder 180 can be adjusted by the position of the variable end 202. That is, the water discharge cylinder 180 is connected to a core 120 that reciprocates left and right within the housing 102. The core 120 is provided with a slide bar 148. The position where the slide bar 148 contacts the variable end 202 is the end position of the reciprocating motion of the core 120. Therefore, the stroke of the reciprocating motion of the core 120 can be changed by adjusting the position of the variable terminal 202, and can be stopped by further narrowing the stroke.

  Hereinafter, the operation mechanism and structure of the water discharge device 100 in the present embodiment will be described in detail.

FIG. 2 thru | or FIG. 5 is a schematic diagram for demonstrating the operation | movement mechanism of the water discharging apparatus of this embodiment. In these drawings, the end adjusting mechanism 200 is omitted for convenience of explanation.
The water discharge device 100 includes a core 120 that is movably provided in the housing 102. The interior of the housing 102 is divided into two pressure chambers 116 and 118 by a core 120. The core 120 has a hollow structure, and the hollow space constitutes an in-core flow path 124 that communicates with a water discharge flow path 182 provided in the water discharge cylinder 180. Further, the core inner flow path 124 communicates with the pressure chambers 116 and 118 via the inlet ports 132 and 134, respectively.

  The core 120 is provided with valve bodies 142 and 144 for changing the opening degree of the introduction ports 132 and 134. The core 120 is provided with control means for controlling the valve bodies 142 and 144. By providing a difference in the opening degree of the inlets 132 and 134 by the control means, the flow resistances of the left and right flow paths from the water inlet to the core internal flow path 124 are made different, whereby the left and right pressure chambers 116 and 118 are changed. The core 120 can be moved using the pressure difference generated in In the state shown in FIG. 2, the control means urges the valve bodies 142 and 144 to the right end, and the water inlet 134 is opened on the right side of the core 120. Therefore, the water supplied from the water inlet 114 flows into the core inner passage 124 from the pressure chamber 118 through the path indicated by the arrow C, and flows through the water discharge passage 182 provided in the water discharge cylinder 180. And flows out as shown by arrow D. On the other hand, since the water supplied from the water inlet 112 of the housing has no outflow path, the pressure in the pressure chamber 116 rises higher than the pressure in the pressure chamber 118. As a result, the core 120 moves in the direction of the arrow M.

FIG. 6 is a schematic diagram for explaining the effect of providing a difference in the opening degree of the inlets 132 and 134.
That is, as illustrated in FIG. 6A, when the valve bodies 142 and 144 are in a neutral state and the opening degree of the introduction ports 132 and 134 is substantially the same, the introduction ports 132 and 134 are interposed. Since the flow resistances of the flow paths are almost the same, there is no pressure difference between the left and right of the core 120. Therefore, the core 120 does not move unless some external force is applied.

  On the other hand, as illustrated in FIG. 6B, when the valve bodies 142 and 144 are out of the neutral state and the opening of the inlets 132 and 134 is different, the flow resistance is also different. Therefore, a pressure difference is generated between the left and right of the core 120.

In the present specification, the “opening degree” of the inlet is a parameter that determines the flow path resistance of the water flowing between the inlet and the valve body. For example, in the state illustrated in FIG. 6B, the flow path resistance of the flow path formed between the introduction port 132 and the valve body 142 is formed between the introduction port 134 and the valve body 144. It is higher than the channel resistance of the channel. In this case, the opening degree of the introduction port 132 is smaller than the opening degree of the introduction port 134.
In the case of the specific example shown in FIG. 6B, since the opening degree of the introduction port 134 is larger than the opening degree of the introduction port 132, the flow path resistance via the introduction port 132 is higher. As a result, the pressure on the left side of the core 120 is higher than that on the right side. That is, the force due to the pressure difference acts on the core 120 and the valve body 142, respectively.

Therefore, when the force applied to the core 120 exceeds the sliding resistance of the core 120, the core 120 moves to the right side. On the other hand, since the valve body 142 is also movable with respect to the core 120, when the force applied to the valve body 142 exceeds the sliding resistance of the valve body 142, the valve body 142 is relative to the core 120. Move to the right. When the valve element 142 moves to the right side, the flow path resistance through the inlet 132 becomes higher and the pressure difference increases. That is, each force applied to the core 120 and the valve 142 increases, and the movement of the core 120 and the valve body 142 is promoted.
Finally, as shown in FIG. 6C, the introduction port 132 is fully closed. At this time, the difference between the left and right flow path resistances is the largest, and a force corresponding to the maximum pressure difference acts on the core 120 and the valve body 142, respectively.

  As described above, in order to move the core 120 in the water discharge device of the present invention, a difference in the opening degree of the inlets 132 and 134 may be provided to generate a pressure difference necessary for movement. At this time, by setting one of the introduction ports in an open state and the other in a closed state, the maximum pressure difference is obtained, and the most reliable and stable moving force is obtained.

  Returning to FIG. 3 again, when the core 120 moves in the housing 102 to the right end or near the right end of the movement stroke as shown in FIG. 3, the valve bodies 142 and 144 are controlled by the control means. Move to the left. Then, the right inlet 134 of the core 120 is closed and the left inlet 132 is opened. In this state, the water supplied from the water inlet 112 flows from the pressure chamber 116 through the inlet 132 into the core inner passage 124 as indicated by the arrow C, and is indicated by the arrow D. As shown in FIG. On the other hand, since the water supplied from the water inlet 114 has no outflow path, the pressure in the pressure chamber 118 rises. As a result, the core 120 moves to the left as indicated by the arrow M in FIGS.

  When the core 120 continues to move to the left side and reaches the left end or the vicinity of the left end of the housing 102 as shown in FIG. 5, the valve bodies 142 and 144 move to the right by the control of the control means. Then, as described above with reference to FIG. 2, the left inlet 132 of the core 120 is closed and the right inlet 134 is opened. As a result, the pressure in the pressure chamber 118 decreases, the pressure in the pressure chamber 116 increases, and the core 120 moves to the right as indicated by the arrow M. Thereafter, by repeating the operation described above with reference to FIGS. 2 to 5, the core 120 continues to move repeatedly left and right in the housing 102.

  Hereinafter, the structure of the water discharging apparatus 100 of this embodiment is demonstrated in detail, referring a specific example.

7 thru | or FIG. 10 is a schematic diagram showing the principal part of the water discharging apparatus 100 of this embodiment. That is, FIG. 7 is a perspective view of the water discharging apparatus of this example, FIG. 8 is a perspective cutaway view, FIG. 9 is a cross-sectional view, and FIG. 10 is a cross-sectional view taken along line AA in FIG. Also in these drawings, the end adjusting mechanism 200 is omitted for convenience of explanation.
The water discharge device 100 of this specific example has an example in which a water discharge cylinder 180 protrudes from a housing 102 formed by a housing main body 103 and a housing lid 104. The water discharge cylinder 180 has a hollow structure having a water discharge flow path 182 inside, and is open at the tip. In addition, the water discharging cylinder 180 does not necessarily need to be a columnar shape, and can give various shapes, such as a prismatic shape and a flat shape.
When a fluid such as water is introduced into the water inlets 112 and 114 provided in the housing main body 103, the water discharge cylinder 180 discharges water while reciprocating linearly in the direction of the arrow M.

  The internal structure will be described. As shown in FIGS. 8 to 10, a core composed of a core body 121 and a core lid 122 is formed in a cylinder space of the housing 102 formed by the housing body 103 and the housing lid 104. 120 is movably accommodated. The core 120 is connected to a water discharge cylinder 180 protruding from the housing 102, and moves inside the housing into a first pressure chamber 116 and a second pressure chamber 118 like a piston. Fluid such as water is introduced into the pressure chambers 116 and 118 from the water inlets 112 and 114, respectively. A seal 126 is provided at a sliding portion between the core 120 and the inner wall of the housing 102 for smooth sliding while maintaining liquid tightness. In addition, a seal 184 is provided at the sliding portion between the water discharge cylinder 180 and the housing 102 for the same purpose. These seals 126 and 184 are made of a material that keeps fluid tightness and smooth sliding. For example, Teflon (registered trademark), NBR (nitrile rubber), EPDM (ethylene propylene rubber), and POM (polyacetal). Etc. can be used. Note that “liquid-tight” as used herein only needs to ensure a state sufficient to cause a pressure difference between the left and right pressure chambers.

Next, the structure of the core 120 will be described.
A core inner flow path 124 is formed by combining the core lid 121 with the core main body 121, and the core inner flow path 124 communicates with the water discharge flow path 182 provided in the water discharge cylinder 180. . The core main body 121 and the core lid 122 are provided with inlets 132 and 134 that allow the core inner flow path 124 and the pressure chambers 116 and 118 to communicate with each other.

In this specific example, a leaf spring and a slide bar are provided in the core 120 as control means.
That is, a core inner passage 124 is formed by combining the core lid 121 with the core main body 121, and the core inner passage 124 is connected to the water discharge passage 182 provided in the right and left water discharge cylinders 180. Communicate. The core main body 121 and the core lid 122 are provided with inlets 132 and 134 that allow the core inner flow path 124 and the pressure chambers 116 and 118 to communicate with each other. Then, main valves 142 and 144 and slide bars 146 and 148 are provided so as to cross the core inner flow path 124.

FIG. 11 is a perspective view showing these main valves and slide bars.
The left and right main valves 142 and 144 are connected by a connecting rod 149 and are installed so as to move left and right through the inlets 132 and 134 provided in the core body 121 and the core lid 122. That is, the main valves 142 and 144 as valve bodies are installed to be movable left and right with a predetermined stroke with respect to the core body 121. Ribs 143 are formed on the main valves 142 and 144, and the main valves 142 and 144 are configured to move coaxially with the introduction ports 132 and 134. When the main valves 142 and 144 move away from the core 120, the groove portions 145 provided between the ribs 143 serve as openings of the inlets 132 and 134 to form a fluid flow path. Then, slide bars 146 and 148 that pass through the main valves 142 and 144 coaxially are installed so as to be movable left and right. That is, the slide bars 146 and 148 are installed so as to be movable to the left and right with a stroke longer than the operation stroke of the main valves 142 and 144.

As illustrated in FIGS. 8 to 10, when the main valve 144 moves away from the core body 121, the introduction port 134 is opened. On the other hand, when the main valve 142 moves away from the core lid 122, the introduction port 132 is opened.
These inlets 132 and 134 are both in communication with the core inner channel 124. That is, the introduction port 132 communicates the pressure chamber 116 in the housing and the core inner flow path 124, and the introduction port 134 communicates the pressure chamber 118 and the core inner flow path 124.

  And the operation | movement of the main valves 142 and 144 which change the opening degree of these inlet ports 132 and 134 is determined by the slide bars 146 and 148 installed coaxially. That is, as shown in FIG. 10, the left and right slide bars 146 and 148 are connected with the compressed leaf spring 160 interposed therebetween, and receive a biasing force toward the right end or the left end depending on the bending direction of the leaf spring 160. . The leaf spring 160 is supported at both ends by the core body 121, and the slide bars 146 and 148 move relative to the core body 121 via the leaf spring 160. The main valves 142 and 144 receive this urging force from the slide bars 146 and 148 to place the introduction ports 132 and 134 in an alternative state of a fully open state or a fully closed state. That is, the slide bars 146 and 148 and the leaf spring 160 act as control means, and control the main valves 142 and 144 which are valve bodies.

Hereinafter, the operation of the water discharging apparatus of this specific example will be described.
FIG. 12 is a schematic diagram showing the reciprocating operation of the water discharge device of this example.
That is, FIG. 6A shows a state in which the slide bars 146 and 148 are urged toward the right side by the action of the leaf spring 160. At this time, the main valves 142 and 144 are also urged toward the right side by the slide bar 146, so that the inlet 132 is closed and the inlet 134 is opened.

In this state, when a fluid such as water is supplied to the water inlets 112 and 114 at substantially the same pressure, the water introduced into the pressure chamber 118 from the water inlet 114 as shown by the arrow B is introduced as shown by the arrow C. It flows into the core inner channel 124 from the port 134 and flows out as shown by the arrow D through the water discharge channel 182 communicating with the left and right.
On the other hand, the water introduced into the pressure chamber 116 from the water inlet 112 as indicated by the arrow A has no outflow path because the inlet 132 is closed, and raises the pressure in the pressure chamber 116.
That is, by providing a difference in the opening degree of the inlets 132 and 134, a difference occurs in the flow path resistance, resulting in a pressure difference. As a result, the pressure in the pressure chamber 116 becomes higher than that in the pressure chamber 118, and the core 120 is pushed and moved in the direction of the arrow M.

  When the core 120 moves in the direction of the arrow M, the volume of the pressure chamber 116 increases and the volume of the pressure chamber 118 decreases accordingly. For this reason, the fluid in the pressure chamber 118 is pushed out by the amount of the fluid flowing into the pressure chamber 116 along the path indicated by the arrow A, and is included in the water discharge amount of the fluid flowing out from the flow path 182.

When the core 120 continues to move further in the direction of the arrow M from the state shown in FIG. 12A and the slide bar 148 comes into contact with the inner wall of the housing main body 103 and is pressed against the core, the leaf spring 160 The bending direction is reversed, and as shown in FIG. 12B, the slide bars 146 and 148 are biased toward the left side. Then, when the slide bar 148 pushes the main valve 144, the main valves 142 and 144 also move to the left. That is, the introduction port 132 is opened and the introduction port 134 is closed.
In the state shown in FIG. 12B, the fluid introduced from the water inlet 112 into the pressure chamber 116 as indicated by the arrow A flows from the inlet 132 to the core inner flow path as indicated by the arrow C. 124 and flows out through the water discharge channel 182 as indicated by the arrow D. On the other hand, as shown by the arrow B, the fluid introduced into the pressure chamber 118 from the water inlet 114 has no outflow path because the inlet 134 is closed, and raises the pressure in the pressure chamber 118. As a result, a pressure difference is generated in the pressure chambers 116 and 118, and the core 120 starts moving toward the left side as indicated by an arrow M.

  When the core 120 continues to move, the slide bar 146 moves to a position where it abuts against the inner wall of the housing lid 104 as shown in FIG. When the core 120 further moves from this state and the slide bar 146 is pushed against the core 120, the bending direction of the leaf spring 160 is reversed and urged to the right side. Then, similarly to the state shown in FIG. 12A, the introduction port 132 is closed and the introduction port 134 is opened, and the core 120 starts moving toward the right side.

  As described above, according to the present specific example, the core 120 is provided with the main valves 142 and 144 as the valve bodies, and the control means including the slide bars 146 and 148 and the leaf spring 160, so that the core 120 Depending on the movement, the magnitude relationship of the opening degree difference between the inlets 132 and 134 can be reversed as appropriate, and the core 120 can be operated repeatedly left and right. The stroke of the reciprocating motion of the core 120 in this specific example can be set as appropriate depending on the length of the housing body 103 and the thickness (width) of the core 120.

Next, the operation of the control means in this example will be described in more detail.
FIG. 13 is a schematic diagram for explaining the operation of the control means in the present embodiment.
That is, FIG. 4A shows a state in which the leaf spring 160 is bent to the right side and biases the slide bars 146 and 148 in this direction. At this time, the introduction port 132 is closed by the main valve 142 and the introduction port 134 is opened by the main valve 144.
When the core 120 moves to the right in this state, the slide bar 148 comes into contact with the inner wall of the housing as shown in FIG. Since a pressure difference acts on the core 120, the core 120 moves further to the right in a state where the slide bar 148 is in contact with the inner wall of the housing, and the state shown in FIG. 13B is obtained. That is, the relative position between the core 120 and the slide bar 148 is changed by overcoming the biasing force of the leaf spring 160, and the slide bar 148 is pushed against the core 120. As a result, the leaf spring 160 is also pushed and deformed to the left side to be in a substantially S-shaped state as illustrated in FIG. At this time, a pressure difference acts on the main valves 142 and 144 similarly to the core 120, and the open / close state of the inlets 132 and 134 is not changed.

  Thereafter, when the core 120 is further moved and the slide bar 148 is further pushed against the core 120, the bending direction of the leaf spring 160 is reversed to the left as shown in FIG. Start and bias slide bars 146, 148 to the left.

  Then, as shown in FIG. 13D, the main valves 142 and 144 move to the left side by the urging force of the leaf spring 160, the introduction port 132 is fully opened, and the introduction port 134 is fully closed.

  As described above, in this specific example, the direction of bending of the compressed leaf spring 160 is appropriately reversed by the slide bars 146 and 148, and the main valves 142 and 144 are operated by using the biasing force, thereby introducing the inlet port. Alternatively, 132 and 134 are controlled to be either fully open or fully closed. That is, by using the urging force of the leaf spring 160, the opening difference between the left and right inlets 132 and 134 is reliably formed for the reversal of the core 120.

  The mechanism of this example that controls the main valves 142 and 144 via the slide bars 146 and 148 has an extremely important role in the smooth operation of the water discharge device of this example. In other words, the compressed leaf spring 160 is in a stable state when bent to the right or left, but as shown in FIG. 13B, it becomes a metastable neutral state near the middle of these stable states. There is. That is, in this state, the leaf spring 160 does not generate much urging force to the left or right. Therefore, in this state, if the opening degree of the introduction ports 132 and 134 becomes substantially the same, the fluid flows from the introduction ports 132 and 134 on both sides of the core, so that there is no pressure difference, and the movement of the core 120 occurs. Will stop. That is, if the timing of starting the operation of the main valves 142 and 144 is earlier than the timing of reversal of the leaf spring 160, the operation of the core 120 may stop.

  On the other hand, according to the present specific example, the slide valves 146 and 148 are provided and the strokes are adjusted as appropriate, so that the main valves 142 and 144 are obtained in the metastable neutral state as shown in FIG. Is still not moved, and the core 120 is kept under pressure by applying pressure. The main valves 142 and 144 can start to move when the leaf spring 160 starts to reverse beyond this neutral state. That is, the operation start timing of the main valves 142 and 142 can be synchronized with the reversal timing of the leaf spring 160.

  In other words, the leaf spring 160 is reversed before the opening difference sufficient to move the core 120 disappears, and the main valves 142 and 144 are moved via the slide bars 146 and 148 by the reversal force (biasing force), The opening difference between the introduction ports 132 and 134 can be reversed to an opening difference sufficient to move the core 120 in the reverse direction.

  In this way, it is possible to solve the problem that the opening degree of the introduction ports 132 and 134 becomes substantially equal when the leaf spring 160 is in a neutral state, and the core 120 stops, and smooth repetitive motion can be realized. .

  In this way, even when the core 120 starts water discharge from a state where the core 120 is stopped near the middle of its movement stroke, the main valves 142 and 144 are controlled by the leaf spring 160 at the time of water discharge start. Thus, one of the introduction ports 132 and 134 is alternatively open, and a pressure difference is formed on both sides of the core 120 to start a stable initial operation. That is, the state where the opening degree of the introduction port 134 is larger than the opening degree of the introduction port 132 and the state where the opening degree of the introduction port 132 is larger than the opening degree of the introduction port 134 can be held alternatively. can do.

  As described above, in this specific example, the moving direction of the core 120, the movable direction of the main valves 142 and 144, the movable direction of the slide bars 146 and 148, and the biasing direction of the leaf spring 160 are substantially the same. Thus, there is no waste in the way the force works, the moving force of the core having a large pressure receiving area can be used effectively, and a smooth and stable operation is possible. That is, a control operation for reversing the magnitude relationship between the opening degrees of the introduction ports 132 and 134 for reversing the core 120 by linking the movement operation of the core 120 and the opening degree control operation is reliable and easy. And a simple and compact valve body and control means.

  7 to 13, the slide bars 146 and 148 are brought into contact with the inner wall of the housing when the core 120 is reversed. However, the present invention is not limited to this. For example, a magnet is provided on the slide bars 146 and 148, while a magnet is provided on the inner wall of the housing, and the slide bars 146 and 148 are stopped relative to the housing by utilizing a repulsive force acting between them. It is also possible. That is, in this case, in the state corresponding to FIGS. 13A to 13C, the slide bars 146 and 148 do not contact the inner wall of the housing 102, and the repulsive force of the magnet (not shown) causes the housing 102 to move. It will be in the state away from the inner wall by a predetermined distance. In this way, the core 120 can be reversed without contact.

  On the other hand, in the present embodiment, the thrust obtained in the reciprocating linear motion is determined by the product of the pressure of the fluid loaded on the core 120 and the pressure receiving area of the core. Therefore, if the pressure receiving area of the core 120 is increased, a large thrust corresponding to the pressure receiving area can be obtained.

  1 to 13 show specific examples in which the circular core 120 is accommodated in a substantially cylindrical space provided in the housing, but the present invention is not limited to this. For example, the internal space of the housing main body 103 may be a prismatic shape or a flat columnar shape, and the core 120 can have various shapes according to these shapes.

  Moreover, the outer peripheral shape of the water discharge cylinder 180 does not need to be circular, and may be a polygonal shape or a flat shape. Furthermore, the water discharge cylinder 180 does not need to be provided at the center of the core 120 and may be provided eccentric from the center of the core 120. If it does in this way, size reduction of the core 120 is easy and the water discharging apparatus 100 can be reduced in size.

  In addition, when the housing inner space is formed in a columnar shape and the water discharge cylindrical body 180 is provided at the center of the cylindrical core 120 as in this specific example, the water discharge cylindrical body 180 can be rotated. That is, when a nozzle or a shower head is provided at the tip of the water discharge cylinder 180, the water discharge position can be repeatedly changed by the reciprocating linear motion of the core 120, and at the same time, the nozzle and the shower head are rotated. It is also possible to change the direction of water discharge.

  For example, there are cases where it is desired to change the angle of the nozzle or shower head according to the user's preference. Even in such a case, if the water discharge cylinder 180 can be rotated, the water discharge direction of the nozzles and the shower head can be adjusted to the optimum direction on site, which is excellent in usability.

  By the way, in the present invention, in addition to a method using a leaf spring and a slide bar as a control means for reversing the magnitude relationship of the opening degree of the introduction ports 132 and 134 for reversing the core 120, for example, There is also a method using a magnet.

FIG. 14 is a schematic diagram for explaining a mechanism for controlling the reversing operation of the core 120 by a magnet.
14A shows a state in which the core 120 moves from the left side to the right side and the valve body 144 is in contact with the inner wall of the housing main body 103. FIG. In this specific example, the core 120 is provided with a magnet 170, and the housing 102 is provided with a magnet (or ferromagnetic material) 174. In the state of FIG. 14A, the force due to the pressure difference acts on the core 120, so that the core 120 moves further to the right. That is, the core 120 further moves to the right side in a state where the valve body 144 is in contact with the housing 102 and fixed in the moving direction.

  Finally, the state shown in FIG. In this state, since the opening degree of the inlets 132 and 134 is substantially the same, a pressure difference due to a difference in flow path resistance does not occur. However, at this time, the core 120 can be further pulled to the right side by the attractive force acting between the magnet 170 and the magnet (or ferromagnetic body) 174.

  In this case, depending on the value of the sliding resistance of the core 120, the core 120 may stop before the state shown in FIG. In such a case, it is desirable to attract the core 120 by an attractive force acting between the magnet 170 and the magnet (or ferromagnetic body) 174 in the state between FIG. 14A and FIG. .

  Now, when the core 120 is pulled to the right side by the attractive force of the magnet from the state shown in FIG. 14B, the opening degree of the introduction port 132 is larger than the opening degree of the introduction port 134 as shown in FIG. A large state is formed. Then, a difference occurs in the flow path resistance of these inlets 132 and 134, and a pressure difference is generated. That is, the pressure on the right side of the core 120 becomes higher, and the core 120 starts to move to the left side. That is, the core 120 can be reversed by reversing the magnitude relationship of the opening degree difference between the introduction ports 132 and 134.

  At this time, as described above with reference to FIG. 6, the pressure difference also acts on the valve body 144, and a force in the direction of closing the valve body 144 acts. As a result, as shown in FIG. 14D, the valve body 144 is completely closed, and the pressure on the right side of the core 120 rises to the maximum value. That is, the maximum driving force to the left is obtained after the core 120 is inverted.

  As described above, if the core 120 can be pulled to the state shown in FIG. 14C by the attractive force acting between the magnet 170 and the magnet (or ferromagnetic body) 174, the inlets 132 and 134 are introduced. The magnitude relationship of the opening degree difference can be reversed, and the core 120 can be reversed. That is, the core 120 can be reciprocated linearly in the housing 102.

  In this case, it is necessary that the core 120 moves by overcoming the attractive force of the magnet after the reversal. That is, it is desirable to appropriately set the balance between the force acting on the core 120 due to the pressure difference and the attractive force obtained by the magnet.

  Further, in the case of the specific example shown in FIG. 14, the surfaces of the valve bodies 142 and 144 (contact surfaces with the housing 102) protrude in a curved shape so that a gap is generated even in the state of contact with the housing 102. Thus, by reducing the contact area with the housing 102, the pressure difference received by the valve body can be effectively utilized, and the valve body can be smoothly reversed so that the degree of opening is reversed.

  In the case of the specific example shown in FIG. 14, the valve bodies 142 and 144 are brought into contact with the inner wall of the housing 102 when the core 120 is reversed, but the present invention is not limited to this. For example, magnets are provided on the valve bodies 142 and 144, while magnets are also provided on the inner wall of the housing 102, and the valve bodies 142 and 144 are relatively moved relative to the housing 2 by utilizing a repulsive force acting between them. It can also be stopped. That is, in this case, in the state corresponding to FIGS. 14A to 14C, the valve bodies 142 and 144 do not contact the inner wall of the housing 102, and the repulsive force of the magnet (not shown) causes the housing 102 to It will be in the state away from the inner wall by a predetermined distance. In this way, the core can be reversed without contact.

  As described above, in order to move the core 120, a difference in the opening degree of the introduction ports 132 and 134 may be provided to generate a pressure difference necessary for movement. Similarly, when the moving direction of the core 120 is reversed, the magnitude relationship between the opening degrees of the introduction ports 132 and 134 may be reversed by the control means. For example, the reversing operation can be performed by changing the ratio of the opening degree of the introduction ports 132 and 134 from 70:30 to 30:70 by the control means. Furthermore, if the opening degree is changed from 100: 0 to 0: 100 by the control means, the most reliable and stable reversing operation is possible.

  According to the present embodiment, the core 120 accommodated in the housing 102 is provided with the valve bodies 142 and 144 and the control means, and the core 120 can be reciprocated by supplying water to the pressure chambers on both sides. At this time, by making the moving direction of the core 120 and the moving directions of the valve bodies 142 and 144 substantially the same, the moving operation of the core 120 and the opening degree control operation are linked, and the core 120 is reversed. The valve body reversing operation of reversing the magnitude relationship of the opening degree of the inlets 132 and 134 is made reliable and easy, and a simple and compact valve body and control means are realized.

  According to the present invention, mechanical power such as electricity is not required, and smooth reciprocal reversal motion is possible only with supply pressure of water or the like, and measures such as installation of a power source, electric shock, or electric leakage are not required. In addition, smooth operation is possible without being affected by disturbances such as electromagnetic noise. Then, by providing the end adjusting mechanism 200, the stroke of the reciprocating reversal motion can be adjusted, and the stroke can be stopped at any position by narrowing the stroke.

  Furthermore, since the water discharging device of the present invention is provided with the valve bodies 142 and 144 and the control means attached to the core 120, for example, an external four-way valve or the like is not necessary, and the smooth structure is simple. Reciprocal reversal motion can be realized. As a result, downsizing becomes easy and the flow path becomes simple, so that pressure loss can be suppressed, and it is advantageous in that a water discharge amount and water discharge pressure can be secured. Further, since the valve bodies 142 and 144 and the control means are built in the housing 102, a smooth operation strong against disturbance can be realized. As a result, the present invention can be applied not only to a bathroom or a hand washing place, but also to a watering device installed outdoors and the like, thereby enabling a stable cooling / washing operation.

In addition, regarding water supply, it is only necessary to branch from the same water supply source and connect to two water inlets, and the workability is excellent.
Furthermore, since the flow path of water is formed inside the moving core and the water discharge cylinder, it is possible to reciprocate the water spray position simply by connecting various water spray cylinders to the tip of the water discharge cylinder. There is also excellent workability in that a special connecting member is unnecessary.
In particular, the water discharge device of the present invention is advantageous in that it is excellent in workability even when it is installed “retrofitting” on existing equipment indoors or outdoors.

And according to this embodiment, the stroke of the core 120, ie, the water discharge cylinder 180, can be changed by providing the termination | terminus adjustment mechanism 200 as represented to FIG.
FIGS. 15 and 16 are schematic cross-sectional views for explaining the adjustment of the stroke by the variable end 202.
For example, as shown in FIG. 15, the core 120 reciprocates with a long stroke as indicated by an arrow M in a state where the tip end surface of the variable end 202 is retracted to the same level as the inner wall of the housing 102. On the other hand, as shown in FIG. 16, when the distal end surface of the variable end 202 protrudes from the inner wall of the housing 102, the core 120 reciprocates with a short stroke as indicated by an arrow M. That is, since the position of the front end surface of the variable end 202 becomes the stroke end of the core 120, the stroke of the water discharge cylinder 180 can be changed by adjusting the position of the variable end 202.
Therefore, the user can adjust the end position of the water discharge cylinder 180 by adjusting the position of the variable end 202, and can adjust the stroke to a desired width. Along with this, the operation center point of the reciprocating motion can be changed.

Since the variable end 202 only needs to abut the tip of the slide bar 148, the area of the tip end surface of the variable end 202 can be much smaller than that illustrated in FIGS.
As described above with reference to FIG. 14, when a magnet is provided on the core 120 or the valve bodies 142 and 144 and an attractive force or a repulsive force is applied thereto, Body) 174 may be provided.

FIG. 17 is a schematic cross-sectional view showing a specific example in which variable ends are provided at both ends of the housing.
That is, the variable end 202 is provided on both sides of the housing 102 so as to contact the slide bars 146 and 148 protruding on both sides of the core 120. By adjusting the position of each of these variable ends 202, the stroke of the reciprocating motion of the core 120, that is, the water discharge cylinder 180 can be controlled, and the operation range can also be changed. That is, the positions of both ends of the reciprocating motion of the water discharge cylinder 180 can be independently changed.
When the variable terminal ends 202 are provided at both ends of the housing 102 as described above, the positions of the variable terminal ends 202 may be changed independently on the left and right sides, or the positions may be linked and controlled. For example, by linking the left and right variable ends 202, it is possible to change only the stroke while maintaining the operation center point of the reciprocating motion of the water discharge cylinder 180 at a constant position.

FIG. 18 is a schematic cross-sectional view showing a modification of the water discharging device of this example.
In this figure, the same elements as those described above with reference to FIGS. 1 to 17 are denoted by the same reference numerals, and detailed description thereof is omitted.
In this modification, water discharge cylinders 180 are provided on both sides of the core 120. That is, the water discharge cylinder 180 protrudes from both sides of the housing 102. The pair of water discharge cylinders 180 reciprocate synchronously in the same direction while discharging water. This modification is particularly convenient when it is desired to obtain water discharge from both ends.

  And also in such a water discharging apparatus, the stroke of the water discharging cylinder 180 can be changed by providing the termination | terminus adjustment mechanism 200. FIG. Note that as described above with reference to FIG. 17, if the end adjustment mechanisms 200 are provided at both ends of the housing 102, not only the stroke but also the positions of both ends of the reciprocating motion can be adjusted independently. In addition, by interlocking the left and right variable ends, it is possible to change only the stroke while maintaining the operation center point of the reciprocating motion of the water discharge cylinder 180 at a constant position.

The operation and structure of the water discharge device of this embodiment have been described above.
Hereinafter, another specific example of the terminal adjustment mechanism 200 that can be provided in the water discharging device of the present embodiment will be described.

FIG.19 and FIG.20 is a schematic cross section showing the 2nd specific example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of this embodiment.
In this specific example, a control magnet 206 is provided on the side wall of the housing 102 facing the slide bar 148. A magnet 208 is built in the slide bar 148. In the specific example shown in the figure, the magnet 208 built in the slide bar 148 has an N pole on the right side and an S pole on the left side. On the other hand, the control magnet 206 can switch the magnetic pole of the part corresponding to the slide bar 148 by the rotation mechanism 207, for example. That is, in the state shown in FIG. 19, the magnetic pole of the control magnet 206 corresponding to the slide bar 148 is N pole, and in the state shown in FIG. 20, the control magnet of the part corresponding to the slide bar 148 The magnetic pole is an S pole. As described above, the stroke of the water discharge cylinder 180 can be changed by switching the magnetic poles of the control magnet 206.

  That is, in the state shown in FIG. 19, a repulsive force acts between the N pole of the control magnet 206 and the N pole of the magnet 208 built in the slide bar 148. Therefore, when the core 120 moves to the right side, the slide bar 148 is pushed by the repulsive force of these magnets and the main valve moves before the tip of the slide bar 148 comes into contact with the inner wall of the housing 102. The inlet 134 is closed and the inlet 132 is opened. FIG. 19 shows a state immediately after the opening degree of the introduction port is switched in this way. Thereafter, the core 120 moves to the left side. That is, in the state shown in FIG. 19, the stroke of the reciprocating motion of the core 120 is shortened as indicated by the arrow M.

On the other hand, in the state shown in FIG. 20, an attractive force acts between the south pole of the control magnet 206 and the north pole of the magnet 208 built in the slide bar 148. Therefore, when the core 120 moves rightward, the main valve 144 does not move and the introduction port 134 remains open until the tip of the slide bar 148 comes into contact with the inner wall of the housing 102. That is, in the state shown in FIG. 20, the stroke of the reciprocating motion of the core 120 becomes longer as indicated by the arrow M.
Furthermore, it is possible to adjust the stroke by turning the control magnet 206 between the state shown in FIG. 19 and the state shown in FIG. That is, the magnetic force from the control magnet 206 is adjusted, and the repulsive force weaker than the state shown in FIG. 19 or the attractive force weaker than the state shown in FIG. 20 is applied to the magnet 208 built in the slide bar 148. Can act. In this way, it is possible to obtain a stroke that is longer than the stroke in the state shown in FIG. 19 and shorter than the stroke in the state shown in FIG.

  As shown in FIG. 19, when the slide bar 148 is pressed without contact, the water pressure applied to the tip surface of the slide bar 148 can be effectively used as part of the reversal force. In the state shown in FIG. 19, the core 120 may be prevented from rotating around the water discharge cylinder 180 by the repulsive force of the magnet. Specifically, for example, a groove is formed in the water discharge cylinder 180 so that the core 120 does not rotate, or the water discharge cylinder 180 is decentered, or the internal space of the housing 102 is not shaped like a column. do it.

  Also in this specific example, the end adjusting mechanism 200 can be provided on both sides of the housing 102 as described above with reference to FIG. That is, a magnet can be incorporated in the slide bar 146, and a control magnet can be provided on the side wall portion of the housing 102 facing the magnet. In this case as well, the left and right end adjusting mechanisms 200 may be controlled independently or linked and controlled.

FIG.21 and FIG.22 is a schematic cross section showing the 3rd specific example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of this embodiment.
In the case of this example, the side wall portion 210 of the housing 102 facing the slide bar 148 is rotatable about the AA axis. At this time, a seal 212 that slides and maintains liquid tightness is appropriately provided on the peripheral edge of the side wall 210. A step 214 is provided on the main surface 210 </ b> R of the side wall 210. In the state shown in FIG. 21, the arrangement relationship of the step 214 is adjusted so as to contact the slide bar 148. Therefore, the stroke of the reciprocating motion of the core 120 is limited by the step 214 and is limited to the range indicated by the arrow M.

  On the other hand, FIG. 22 shows a state in which the side wall portion 210 is rotated about 180 degrees around the AA axis. In this state, the slide bar 148 does not contact the step 214 but contacts the main surface 210 </ b> R of the side wall part 210. Therefore, the stroke of the reciprocating motion of the core 120 is expanded to the range represented by the arrow M. However, in this case, before the slide valve 148 comes into contact with the main surface 210R of the side wall portion 210 and the main valve is switched, it is necessary to appropriately determine their height and shape so that the step 214 and the core 120 do not come into contact with each other. There is.

  In this specific example, the number of steps 214 provided on the side wall 210 need not be only one. For example, when two or more types of steps having different heights are provided on the main surface 210R of the side wall portion, and the side wall portion 210 is rotated so that one of these steps contacts the slide bar 148, the stroke is changed according to the height of the step. Can be adjusted in multiple stages. Furthermore, an inclined pattern whose height continuously changes may be provided on the main surface 210R of the side wall portion 210. In this way, the height at which the slide bar 148 contacts changes according to the rotation angle of the side wall portion 210. That is, the stroke of the reciprocating motion of the core 120 can be changed steplessly.

FIG.23 and FIG.24 is a schematic cross section showing the 4th specific example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of this embodiment.
In this specific example, the stroke can be changed by rotating the core 120. That is, a step 216 is provided on the inner wall surface of the housing 102 facing the slide bar 148. In the state shown in FIG. 23, the arrangement relationship is adjusted so that the slide bar 148 contacts the step 216. Therefore, the stroke of the reciprocating motion of the core 120 is limited by the step 216 and limited to the range represented by the arrow M.

  In this specific example, the core 120 is rotatable around the water discharge cylinder 180. As shown in FIG. 24, in a state where the core 120 is rotated about 180 degrees, the slide bar 148 does not contact the step 216 but contacts the inner wall surface 102R of the housing. Therefore, the stroke of the reciprocating motion of the core 120 is expanded to the range represented by the arrow M. However, also in this case, before the slide bar 148 comes into contact with the inner wall surface 102R and the main valve is switched, it is necessary to appropriately determine their height and shape so that the step 216 and the core 120 do not come into contact with each other.

  Thus, in this specific example, the stroke of reciprocation can be changed by providing the step 216 on the inner wall surface of the housing 102 and appropriately rotating the core 120. In this case, it is not necessary that there is only one step 216, similar to that described above with respect to the third specific example. For example, when two or more types of steps having different heights are provided on the inner wall surface 102 </ b> R, and the core 120 is rotated so that one of these steps contacts the slide bar 148, the stroke is multi-staged according to the height of the steps. Can be adjusted. Furthermore, an inclined pattern whose height continuously changes may be provided on the inner wall surface 102R of the housing. In this way, the height at which the slide bar 148 contacts changes according to the rotation angle of the core 120. That is, the stroke of the reciprocating motion of the core 120 can be changed steplessly.

  In this specific example, it is desirable that the core 120 does not rotate freely while the water discharge device is in operation. Therefore, for example, a latch mechanism or the like is provided so that the core 120 does not rotate during normal operation, and the core 120 can rotate and change its stroke only when a rotational force of a predetermined level or higher is applied. .

  The water discharging device of the present invention has been described above with reference to specific examples. These water dischargers can be combined with various nozzle parts. Hereinafter, some specific examples of the water discharging device of the present invention combined with the nozzle portion will be described.

FIG. 25 is a schematic diagram illustrating a first specific example of the water discharging device of the present invention in combination with a nozzle portion. That is, in this specific example, as described above with reference to FIG. 18, the water discharger 100 in which the water discharge cylinders 180 protrude from both sides of the housing. A water discharge nozzle 810 is attached to the tip of the water discharge cylinder 180 projecting on both sides of the housing. When the water discharge cylinder 180 reciprocates linearly in the direction indicated by the arrow M, the water discharge nozzle 810 also moves repetitively in accordance with this and the water discharge position fluctuates periodically.
The termination adjusting mechanism 200 described above with reference to FIGS. 1 to 24 is provided.

  For example, when such a water discharge device is installed on a wall surface 900 such as a bathroom and water is applied to a user's shoulder or the like, the water discharge position changes periodically. In addition, it is not necessary for the user to shake the body to change the site of action, and the feeling of use is improved. Moreover, it is also possible to obtain a relaxation effect by applying spray-like water discharge over a wide range, and the usability is improved.

  In these cases, for example, the shoulder width differs depending on the physique of the user, and the range in which the “tap water” is to be applied also differs. On the other hand, according to this specific example, the stroke can be adjusted according to the user's physique and preference by operating the terminal adjustment mechanism 200, and the usability is improved. An effect is also obtained.

  Further, by controlling the end adjustment mechanism 200, it is possible to reduce the stroke and stop the stroke. Accordingly, the water can be discharged while being fixed at a user's favorite position. For example, it is possible to intensively discharge water at a portion where the shoulder is stiff and obtain a higher massage effect and relaxation effect.

  On the other hand, when the water discharge nozzle 810 is fixed to the wall surface 900 or the like without fixing the housing, the housing moves, and this operation can be used for massage or the like. In other words, a massage effect such as “Momihoshi” can be obtained by pressing the body against the housing that moves left and right.

In this case as well, by operating the end adjustment mechanism 200, it is possible to massage with a user's favorite stroke.
FIG. 25 shows a specific example installed on the wall surface 900, but in addition to this, for example, it may be installed on the edge of the bathtub, and in this case, the shoulder bath can be enjoyed while taking a bath.
In addition, FIG. 25 shows a specific example in which the unit is installed horizontally with respect to the wall surface 900, but the same operation and effect can be obtained even if it is installed vertically and used as a body shower. For example, when it is desired to use as a whole body shower, it can be reciprocated to discharge water over a wide area, and when it is desired to wash a part such as hair, it can be discharged by narrowing or stopping the stroke at a position suitable for that part.

FIG. 26 is a schematic diagram illustrating a specific example of a water discharging apparatus using the water discharging cylindrical body 180 as a nozzle.
In this specific example, the water discharge cylinder 180 protrudes from the housing in only one direction, and the tip thereof opens in a faucet shape. The water discharge cylinder 180 reciprocates linearly in the direction of arrow M, and the water discharge position changes periodically. Therefore, a wide area can be washed without moving the object. For example, by installing the water discharge device in a sink or the like, it is possible to widen the water discharge range and increase the cleaning efficiency when the user is washing hands or dishes. In addition, an easy-to-use hand-washing machine can be provided for the elderly and the disabled.

  Then, by operating the end adjustment mechanism 200, the end adjustment mechanism 200 can be operated with a stroke according to the user's preference and the object. For example, when washing dishes, etc., there are objects of various sizes from large pots to small dishes, but by adjusting the stroke according to each size, water can be discharged efficiently. It can be applied to an object, and it is possible to increase cleaning efficiency and save water. Furthermore, the stroke can be significantly narrowed and fixed to the user's preferred position for water discharge. For example, it is possible to efficiently use the water discharge device when it is desired to wash a specific part intensively or when it is desired to draw water, etc., and to provide a user-friendly water discharge device.

The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples.
That is, even if a person skilled in the art adds a design change to any of the elements constituting the water discharge device of the present invention, any element having the gist of the present invention is included in the scope of the present invention.

For example, even if a person skilled in the art appropriately changes the outer shape of the water discharge device and the water discharge nozzle of the water discharge device, the end adjustment mechanism, the shape or arrangement of other components, the stroke and the rotation angle, etc. As long as the gist of the invention is included, it is included in the scope of the present invention.
In addition, it is only necessary that the water inlets corresponding to the left and right pressure chambers are formed with respect to the water inlets, for example, a flow path branched in the housing is formed and connected to each water inlet, and the water inlet connection to the housing is made. There may be only one mouth, and this can simplify the piping.

  Moreover, the application field of the water discharger is not limited to bathrooms, hand-washing or kitchens. In addition, for example, when the water discharge device of the present invention is incorporated in an automobile cleaning device, the water discharge range can be adjusted according to the size of the vehicle, and a water-saving effect can be obtained without sprinkling water more than necessary. There is also an effect that it is not necessary to wet the surroundings. Furthermore, by incorporating such a water discharge device into a cleaning device at various industrial sites including semiconductors, food, medical, paper pulp, automobiles, etc., for example, semiconductor wafers, liquid crystal panel substrates, Various raw materials, materials, parts, etc. can be cleaned efficiently. Also in this case, the water discharge range can be adjusted according to the size of the object, a water-saving effect can be obtained, there is no need to supply power or lubricating oil, no electromagnetic noise is generated, and Various effects such as hygienic and excellent maintainability are obtained without being affected by noise. Further, since the stroke, that is, the water discharge range can be adjusted, it is particularly advantageous in that it can be adapted to the size of an object when retrofitted to various systems.

  Further, for example, it is suitable for use in applications such as spraying water supply to plants in a garden or a field or watering a ground. That is, it is possible to realize a water discharge device that is small and compact, has excellent portability, does not require electric power, can adjust the watering range according to the size of the garden, and has a high water-saving effect.

It is a schematic diagram which illustrates the water discharging apparatus concerning embodiment of this invention, (a) is a front view of a water discharging apparatus, (b) is the sectional view on the AA line. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the effect of providing a difference in the opening degree of the inlets 132 and 134. FIG. It is a perspective view of the water discharging apparatus 100 of 1st Embodiment. 1 is a perspective cutaway view of a water discharge device 100. FIG. It is sectional drawing of the water discharging apparatus. FIG. 10 is a sectional view taken along line AA in FIG. 9. It is a perspective view showing a main valve and a slide bar. It is a schematic diagram showing the reciprocating operation | movement of a water discharging apparatus. It is a schematic diagram for demonstrating operation | movement of a control means. It is a schematic diagram for demonstrating the mechanism which controls the inversion operation | movement of the core 120 with a magnet. It is a schematic cross-sectional view for explaining the adjustment of the stroke by the variable end 202. It is a schematic cross-sectional view for explaining the adjustment of the stroke by the variable end 202. It is a schematic cross section showing the specific example which provided the variable termination | terminus at the both ends of the housing. It is a schematic cross section showing the modification of the water discharging apparatus of the specific example of this invention. It is a schematic cross section showing the 2nd specific example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 2nd specific example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 3rd specific example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 3rd specific example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 4th example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 4th example of the termination | terminus adjustment mechanism 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic diagram showing the 1st specific example of the water discharging apparatus of this invention combined with the nozzle part. It is a schematic diagram showing the specific example of the water discharging apparatus which used the water discharging cylinder 180 as the nozzle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Water discharging apparatus 102 Housing 102R Inner wall surface 103 Housing main body 104, Housing lid | cover 112,114 Water inlet 116,118 Pressure chamber 120 Core 121 Core main body 122 Core lid 124 Core inner flow path 126 Seal 132, 134 Inlet 142 144 Main valve 146, 148 Slide bar 149 Connecting rod 160 Leaf spring 180 Water discharge cylinder 182 Water discharge channel 184 Seal 200 Termination adjustment mechanism 202 Variable termination 204 Seal mechanism 206 Control magnet 207 Rotation mechanism 208 Magnet 210 Side wall 210R Main surface 212 Seals 214, 216 Step 600 Water supply valve 700 Water supply pipe 810 Water discharge nozzle 900 Wall surface

Claims (10)

A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A variable end that reverses the magnitude relationship of the opening degree of the first and second inlets by contacting at least a part of the control means, and the amount of protrusion in the space is variable;
A water discharging apparatus comprising:   The water discharge device according to claim 1, wherein the variable terminal ends are provided at both ends of the columnar space. A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means having a magnet and reversing the magnitude relationship of the opening degree of the first and second inlets when reversing the moving direction of the core;
A control magnet for changing the position of reversing the magnitude relationship of the opening degree of the first and second inlets by selectively acting either one of attractive force and repulsive force on the magnet;
A water discharging apparatus comprising:   The water discharge device according to claim 3, wherein the control magnets are provided at both ends of the columnar space. A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
The first and second portions have different projection amounts in the space, and at least a part of the control means is brought into contact with either one of the first and second portions. By reversing the magnitude relationship of the opening of the second inlet and changing the position of the first and second parts, it is selected whether the control means abuts on the first or second part A side wall made possible;
A water discharging apparatus comprising: A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;
A first water inlet for introducing a fluid into the first pressure chamber;
A second water inlet for introducing a fluid into the second pressure chamber;
A first inlet for introducing a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
With
The housing has first and second portions with different protrusion amounts in the space,
The control means reverses the magnitude relation of the opening degree of the first and second inlets by contacting either one of the first and second parts,
By rotating the core around an axis parallel to the direction of movement, it is possible to select which of the first and second portions the control means abuts on. A water discharge device. When fluid is supplied to the first and second water inlets with the first inlet closed and the second inlet opened, the core moves toward the second pressure chamber. ,
When fluid is supplied to the first and second water inlets with the second inlet closed and the first inlet opened, the core moves toward the first pressure chamber. The water discharging apparatus according to any one of claims 1 to 6, wherein   The water discharging apparatus according to any one of claims 1 to 7, wherein a moving direction of the core and a moving direction of the valve body are substantially the same.   The control means includes a first state in which the opening of the second introduction port is larger than the opening of the first introduction port, and the first introduction than the opening of the second introduction port. The water discharging device according to any one of claims 1 to 8, wherein the second state in which the opening degree of the mouth is increased can be selectively maintained. The control means includes
A slide bar which is operable with a stroke longer than a moving stroke of the valve body and moves the valve body;
A leaf spring that biases the slide bar toward one end or the other end of the stroke;
The water discharge device according to any one of claims 1 to 9, characterized by comprising:

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