JP5177465B2 - Shower equipment - Google Patents

Description

  The present invention relates to a shower device that discharges bubble-containing water mixed with air.

  As an example of a water discharge device, there is known a device that mixes air into water by using a so-called ejector effect, and discharges it as bubble mixed water. When this water discharge device is configured as a shower device that discharges water that has flowed into the device into a plurality of sprinkling holes, air is mixed into the water that flows into the device when water is mixed into the water discharge. It is configured to be dispersed in each sprinkling hole.

  As an example of such a shower device, a shower device as described in Patent Document 1 below has been proposed. The shower apparatus described in the following Patent Document 1 has a plurality of water spray holes provided on the front surface of a disk-shaped housing shell, and distributes water introduced from the center of the rear surface of the housing shell to the plurality of water spray holes. And discharged. Furthermore, in this shower device, after water flows into the housing shell, air is mixed to form bubble mixed water, and a plurality of water sprays formed so that the bubble mixed water is distributed over the entire front surface of the disk-shaped housing shell. It distributes to the holes. Therefore, a turbulent flow generating extension is arranged in the direction in which the bubble mixed water travels, and the bubble mixed water collides with the turbulent flow generated expansion to change the direction so that the bubble mixed water spreads over the entire front surface of the housing shell. ing.

  As another example of such a shower apparatus, a shower apparatus as described in Patent Document 2 below has also been proposed. In the shower device described in Patent Document 2 below, when a cock such as a hot and cold water mixing tap is opened, water is supplied from the hose and water passes through the orifice member. At this time, since a decompressed state is formed in the decompression chamber provided on the downstream side of the orifice member, air is sucked from the inner suction port opened in the decompression chamber, and water and air are mixed. The shower device described in Patent Document 2 below generates bubble-containing water in this way and discharges it from a plurality of water spray holes provided in the shower head. In this shower device, the bubble-containing water after generation hits the screw member in the partition pipe provided on the downstream side of the decompression chamber and further on the inner wall of the shower head on the downstream side, and is directed to the sprinkling holes while changing its direction.

  Furthermore, from the viewpoint of a shower apparatus that discharges water mixed with bubbles, a shower apparatus as described in Patent Document 3 below has also been proposed. The shower device described in the following Patent Document 3 has a gas mixing part that mixes gas into a water supply channel through which shower water flows, and refines the gas mixed in the shower water in the gas mixing part to supply water. There is provided a fine bubble generator for containing fine bubbles having a bubble diameter of 0.1 to 1000 μm with respect to shower water discharged from a shower water discharge portion provided at the exit of the road. As this gas mixing section, gas mixing ratio control means for controlling the mixing ratio of gas into the shower water is provided, and a gas flow valve which is an electromagnetic valve constituting the gas mixing ratio control means is provided as a gas supply flow path. Is provided. The gas flow valve is connected to a control unit that controls the operation of the shower device, and its opening degree is controlled. The opening control of the gas flow valve is to control the size of the gas supply channel, and the flow rate of the gas flowing through the gas supply channel is variable.

JP-T-2006-509629 Japanese Patent No. 3747323 JP 2008-237601 A

  In the shower apparatus described in Patent Document 2, as described in Paragraph 0015 of the same document, the shower device is for realizing a feeling that water hits the user in an intermittent manner. This “discontinuity” means that the water droplets having a non-uniform particle size hit the user. If the water droplets with a large particle size hit, the user is given a strong feeling of bathing and the water droplets with a small particle size are hit. If the user feels a weak bathing sensation, the user may be able to intermittently give the user the intensity of the bathing sensation. According to specific considerations by the present inventors, it is presumed that the bubble-containing water immediately after the generation is mixed with air substantially uniformly with respect to the water. It is thought that the bubbles collide with each other when the direction is changed by hitting the inner wall of the head, and the bubble diameter is non-uniform when reaching the water spray hole. And by discharging such bubble-mixed water from the sprinkling holes, water droplets with non-uniform particle diameters are formed, and the above-mentioned feeling is realized by applying the water droplets with non-uniform particle diameters to the user. It is thought that there is.

  On the other hand, although there is no description about the property of the bubble mixed water discharged by the shower apparatus of the said patent document 1, the bubble mixed water whose bubble diameter is nonuniform similarly to the shower apparatus of the said patent document 2 It is considered that water droplets having a non-uniform particle diameter are formed by supplying and discharging water to the water spray holes, and these water droplets having a non-uniform particle diameter are applied to the user. In the shower device described in Patent Document 1, a turbulent flow generation extension is arranged in the traveling direction of the bubbling water, and the direction is changed by causing the bubbling water to collide with the turbulence generation expansion. This is because the same non-uniform bubble growth occurs in the shower device described in Patent Document 2 and it is considered that water droplets having a non-uniform particle size are applied to the user. Both the shower device described in Patent Document 1 and the shower device described in Patent Document 2 are intended to apply water droplets having a non-uniform particle diameter to the user with water containing air bubbles mixed with non-uniform air bubbles. Therefore, the difference in strength of the bathing feeling is small, and the feeling of stimulation is poor.

  On the other hand, in the shower device described in Patent Document 3, a gas flow rate valve, which is an electromagnetic valve constituting the gas mixture ratio control means, is provided in the gas supply channel. By providing such a gas mixture ratio control means, it is possible to intentionally control the bubble mixture rate, but an electromagnetic valve as a gas flow valve is required. Therefore, according to the shower device described in Patent Document 3, there is a possibility that the bubble mixed water can be discharged with a sense of irritation, but a means for physically operating the structure like an electromagnetic valve is required. Therefore, it becomes a water discharge device that goes against size reduction and cost reduction.

  The present inventors are a water discharger that can feel a sense of volume even with a small amount of water for such a situation, and the instantaneous flow rate of the water discharge greatly changes, enabling a pleasant water discharge with a feeling of stimulation. Therefore, we wanted to provide a shower device that contributes to miniaturization and cost reduction. On the other hand, the conventional technology described above realizes the feeling that water droplets with a non-uniform particle size hit the user as described above, so that it is comfortable that the instantaneous flow rate of the discharged water greatly fluctuates in addition to the sense of volume. It did not provide irritating water. Moreover, it was not possible to provide a water discharge with a pleasant sensation of feeling that the instantaneous flow rate of the water discharge greatly fluctuates in addition to the volume feeling while reducing the size and cost.

  The present invention has been made in view of such problems, and the purpose thereof is to feel a sense of volume even with a small amount of water, and also to feel a comfortable stimulation feeling that the instantaneous flow rate of water discharge fluctuates greatly. An object of the present invention is to provide a shower device that can enjoy water discharge.

In order to solve the above problems, a shower device according to the present invention is a shower device that discharges air-mixed water in which air is mixed, and is provided on a downstream side of the water supply unit, a water supply unit that supplies water, A throttle part that reduces the cross-sectional area of the flow channel compared to the water supply part, increases the flow rate of the passing water and injects it downstream as a main water flow, and an air inlet that is provided downstream of the throttle part and introduces air An air mixing part that mixes air introduced from the air inlet into the main water stream to generate bubble mixed water, and a downstream side of the air mixing part for discharging the bubble mixed water A water discharge portion in which a plurality of water spray holes are formed. The shower apparatus according to the present invention further periodically changes the traveling direction of the main water flow in the vicinity of the main water flow in the air mixing portion in order to periodically change the amount of air mixed into the main water flow. A substream forming means for generating the substream is provided. The secondary water flow forming means is provided on the opposite side of the air introduction port with the main water flow interposed therebetween, and serves as a guide for making the secondary water flow into a spiral flow that generates a negative pressure that draws the main water flow. In addition to having a concave vortex chamber, the constriction section injects the main water flow between the air introduction port and the vortex chamber so that air introduced from the air introduction port does not enter the auxiliary water flow side. In addition, the direction in which the main water flow is jetted is inclined to the air inlet side with respect to the vortex chamber.

  According to the present invention, air is mixed into the main water stream ejected from the throttle unit at the air mixing unit to form bubble mixed water, and the bubble mixed water is discharged from the water discharging unit, so that the user can enjoy a large amount of discharged water. Can be made. Furthermore, a sub-water flow forming means is provided, and a sub-water flow having a traveling direction different from that of the main water flow is formed by the sub-water flow forming means. Since the traveling direction of the main water flow is periodically changed by the action of the sub-water flow, the amount of air mixed into the main water flow at the air mixing portion can be changed. By changing the amount of air mixed in, the instantaneous flow rate of the bubble mixed water discharged from the water discharge section changes greatly, and the strength of the water flow that hits the user is generated. The user feels that when the air mixing rate is low, the instantaneous flow rate of the bubbling water increases, so it feels that a strong water flow has been hit, while when the air mixing rate is high, the instantaneous flow rate of the bubbling water is low. We feel that we were hit by weak water flow because it decreases. In this way, the user can receive a pulsating stimulus when a physically strong water flow and a weak water flow are hit.

  In the present invention, the water discharge that gives the pulsating stimulus as described above is realized by forming a secondary water flow that periodically changes the traveling direction of the main water flow. There is provided a shower device that can give a comfortable stimulus to a user with a simple configuration without separately providing a pump to be changed. Moreover, in order to change the advancing direction of the main water flow by the side water flow, it is preferable to generate a pressure fluctuation caused by the side water flow in the vicinity of the main water flow. In the case of the present invention, as described above, air is taken in from the air inlet of the air mixing part to form the bubble mixed water, so the inside of the air mixing part is in a negative pressure state. Therefore, the traveling direction of the main water flow is periodically changed by generating a sub-water flow negative pressure in the vicinity of the main water flow so as not to reduce the negative pressure in the aeration unit. In addition, since the vortex chamber serving as a guide for forming the sub-water flow is provided, the vortex flow forming the sub-water flow can be increased or decreased depending on the size of the vortex chamber. Therefore, the size of the vortex chamber can be adjusted according to the amount of negative pressure required for the substream negative pressure generated by the substream, and an appropriate substream negative pressure can be generated. In addition, since the air sucked from the air inlet by the main water flow is prevented from entering the sub water flow side, the sub water flow can be formed more stably.

  In this preferred embodiment, the direction in which the main water flow is ejected is inclined toward the air inlet, so the traveling direction of the main water flow injected from the throttle portion is inclined toward the air inlet. When a sub-water flow is formed by jetting the main water flow, a sub-water flow negative pressure is generated, so that the traveling direction of the main water flow inclined toward the air inlet side can be inclined toward the sub-water flow side. In this way, by pulling the traveling direction of the main water stream inclined in advance to the air inlet side toward the sub-water stream side, the fluctuation range of the traveling direction of the main water stream can be increased, and the fluctuation of the air mixing amount is also increased. be able to. Accordingly, the fluctuation range when the physically strong water flow and the weak water flow are hit is increased, and the user can receive a stronger pulsating stimulus.

  ADVANTAGE OF THE INVENTION According to this invention, the water discharging apparatus which can enjoy the water discharge which can feel a feeling of volume even if it is a small amount of water, and can also feel the pleasant irritation | stimulation that the instantaneous flow rate of water discharge changes greatly is provided. be able to.

It is a figure which shows the shower apparatus which concerns on embodiment of this invention, Comprising: (A) shows a top view, (B) shows a side view, (C) has shown the bottom view. It is sectional drawing which shows the AA cross section in (A) of FIG. It is an expansion perspective sectional view which expands and shows the aeration part vicinity shown in FIG. In the shower apparatus of this embodiment, it is a figure for demonstrating the principle which performs pulsating water discharge. In the shower apparatus of this embodiment, it is a figure for demonstrating the principle which performs pulsating water discharge. In the shower apparatus of this embodiment, it is a figure for demonstrating the principle which performs pulsating water discharge. In the shower apparatus of this embodiment, it is a figure for demonstrating the principle which performs pulsating water discharge. In the shower apparatus of this embodiment, it is a figure for demonstrating the principle which performs pulsating water discharge. It is a photograph which shows the mechanism which performs pulsating water discharge in the shower apparatus of this embodiment. In the shower apparatus of this embodiment, it is a photograph which shows the state which carried out the pulsation water discharge.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  The shower apparatus which is embodiment of this invention is demonstrated referring FIG. FIG. 1 is a diagram showing a shower apparatus F1 according to an embodiment of the present invention. FIG. 1A shows a plan view, FIG. 1B shows a side view, and FIG. ) Shows a bottom view. As shown in FIG. 1A, the shower apparatus F1 is mainly composed of a main body 4 having a substantially disk shape, and a water supply port 41d and an opening 431 are provided on the upper surface 4a of the shower apparatus F1 (main body 4). Is formed.

  As shown in FIG. 1B, the body 4 of the shower apparatus F1 has an outer shape by a cavity 4A in which a water supply port 41d and an opening 431 are formed, and a shower plate 4B in which a water spray hole 443 is formed. Is configured. As shown in FIG. 1C, a plurality of water spray holes 443 are formed in the lower surface 4b of the main body 4, and a sealing piece 4E is arranged. In the case of this embodiment, the water spray holes 443 are arranged radially with the sealing piece 4E as the center.

  Subsequently, the shower apparatus F1 will be described with reference to FIG. 2 which is a cross-sectional view taken along the line AA of FIG. As shown in FIG. 2, the shower apparatus F1 includes a cavity 4A, a shower plate 4B, an introduction piece 4D, and a sealing piece 4E.

  The cavity 4A is a member that forms the outer shape of the main body 4 together with the shower plate 4B. A circular recess 4Ab is formed from the contact surface 4Aa opposite to the upper surface 4a of the main body 4 toward the upper surface 4a.

  The shower plate 4B is a member that forms the outer shape of the main body 4 together with the cavity 4A, and a plurality of water spray holes 443 are radially formed. The contact surface 4Ba opposite to the lower surface 4b of the region where the water spray holes 443 are formed is configured to be the side wall 44c of the water discharger 44.

  When the contact surface 4Ba of the shower plate 4B and the contact surface 4Aa of the cavity 4A are brought into contact with each other, a gap is formed by the recess 4Ab of the cavity 4A and the contact surface 4Ba. 44. A part of the recess 4 </ b> Ab is configured to be a side wall 44 a of the water discharger 44.

  The water supply unit 41, the throttle unit 42, and the air mixing unit 43 of the shower device F1 will be described with reference to FIG. 3 in which the vicinity of the water supply unit 41, the throttle unit 42, and the air mixing unit 43 is enlarged. As shown in FIG. 3, the water supply unit 41, the throttle unit 42, and the air mixing unit 43 are configured by a cavity 4A, a shower plate 4B, an introduction piece 4D, and a sealing piece 4E.

  The introduction piece 4D has a large diameter part 4Da and a small diameter part 4Db. A water supply port 41d is formed at the end of the large diameter portion 4Da opposite to the small diameter portion 4Db. A cylindrical cavity is formed inside the large-diameter portion 4Da so as to be connected to the water supply port 41d. A flange portion 4Daa is formed at the end of the large diameter portion 4Da where the water supply port 41d is formed. An opening 431 is formed in the flange portion 4Daa so as to penetrate the flange portion 4Daa in the thickness direction.

  A throttle port 42d is formed at the end of the small diameter portion 4Db opposite to the large diameter portion 4Da. A cavity is formed in the small diameter portion 4Db so as to connect the throttle port 42d and the water supply unit 41, and serves as the throttle unit 42.

  The introduction piece 4D is housed in a recess 4Ac and a through hole 4Ad formed in the cavity 4A. The recess 4Ac is formed at the center of the cavity 4A. A through hole 4Ad is formed in the center of the bottom of the recess 4Ac. The small diameter portion 4Db of the introduction piece 4D is accommodated in the through hole 4Ad, and is disposed so as to protrude from the through hole 4Ad and face the sealing piece 4E. The large-diameter portion 4Da of the introduction piece 4D is housed in the recess 4Ac, and the flange portion 4Daa is in contact with the outer end of the recess 4Ac.

  An air gap is formed between the large diameter portion 4Da and the recess 4Ac, and between the small diameter portion 4Db and the through hole 4Ad, forming an air flow path 431a. The air flow path 431 a is formed so as to connect the opening 431 and the aeration unit 43.

  The sealing piece 4E is fitted into a through hole 4Bb formed at the center of the shower plate 4B. A water guide recess 42e is formed at the center of the surface of the sealing piece 4E on the introduction piece 4D side. A vortex chamber 432 is formed around the water guiding recess 42e. The water guiding recess 42e and the vortex chamber 432 are formed by providing a recess so as to recede from the surface of the sealing piece 4E on the introduction piece 4D side.

  An inclined surface 421c is formed at the end of the water guiding recess 42e on the vortex chamber 432 side. The inclined surface 421c is formed as an inclined surface that gradually rises from the bottom surface of the water guiding recess 42e. The inclined surface 421c is disposed so as to face the end surface 421b of the small diameter portion 4Db of the introduction piece 4D. The end surface 421b is disposed in parallel with the bottom surface of the water guiding recess 42e. A throttle channel 421 is formed by the inclined surface 421c and the end surface 421b.

  Water introduced from the water supply port 41 d passes through the water supply unit 41 and the throttle unit 42 and is jetted from the throttle channel 421 toward the air mixing unit 43. Further, the air introduced from the opening 431 passes through the air flow path 431a and is introduced into the air mixing unit 43. When water is jetted from the throttle channel 421 toward the air mixing part 43, a gas-liquid interface is formed on the water discharge part 44 side, and the water jetted into the gas-liquid interface enters and entrains the air, so It is formed.

  As described above, by assembling the cavity 4A, the shower plate 4B, the introduction top 4D, and the sealing piece 4E, the shower apparatus F1 includes the water supply unit 41, the throttle unit 42, the air mixing unit 43, A water discharge unit 44 is provided.

  The water supply unit 41 is a part for supplying water, and is a part for supplying water introduced from the water supply port 41d to the throttle unit 42. A water supply means (water supply hose or the like) (not shown) can be connected to the water supply port 41d, and water supplied from the water supply means is supplied from the water supply part 41 to the throttle part 42.

  The throttle part 42 is provided on the downstream side of the water supply part 41, and is a part for reducing the flow passage cross-sectional area of the water supply part 41 and injecting the passing water downstream. A throttle channel 421 is formed in the throttle unit 42.

  The air mixing part 43 is provided on the downstream side of the throttle part 42, and an opening 431 and an air flow path 431a are formed for mixing air into water jetted through the throttle part 42 to form bubble mixed water. It is a part that has been.

  The water discharge part 44 is provided in the downstream of the air mixing part 43, and is the part in which the several water sprinkling hole 443 for discharging bubble mixing water is formed.

  In the shower device F <b> 1, the air mixing rate of the bubble mixed water is periodically changed by periodically changing the traveling direction of the water jetted from the throttle channel 421 in the air mixing unit 43. Due to the periodic fluctuation of the air mixing rate, the water discharge becomes a pulsating state, and the user can obtain a sense of irritation.

  Next, the principle of periodically changing the air mixing rate will be described with reference to FIGS. 4, 5, 6, and 7 are enlarged views in the vicinity of the throttle channel 421, and are diagrams illustrating a time-series manner in which the air mixing rate varies. FIG. 4 is a diagram illustrating an initial stage in which water starts to be ejected from the throttle channel 421. FIG. 5 is a diagram illustrating a state in which the air mixing rate is increased from the state illustrated in FIG. 4. FIG. 6 is a diagram illustrating a state in which the air mixing rate is further increased and maximized from the state illustrated in FIG. 5. FIG. 7 is a diagram illustrating a state in which the air mixing rate has decreased from the state illustrated in FIG. 6.

  First, as shown in FIG. 4, the water jetted from the throttle channel 421 travels along the inclined surface 421c toward the upper air channel 431a in the drawing to form a main water flow. Negative pressure is generated by the action of the main water flow injected from the throttle channel 421, and air is taken in from the air channel 431a through the opening 431. Due to the main water flow ejected from the throttle channel 421, the aeration unit 43 becomes full. There is a speed difference between the main water flow ejected from the throttle channel 421 and the water near the wall surface, and the traveling direction of the main water stream and the vortex chamber 432 are relatively separated from each other. Part of it returns to the vortex chamber 432. The water guided to the vortex chamber 432 generates a vortex side water flow.

  As described above, since the flow of air passing through the air flow path 431a and the flow of the vortex-shaped sub-water flow generated in the vicinity of the vortex chamber 432 are generated in parallel, the suction negative pressure and the sub-water flow negative pressure are respectively generated in the main water flow. Is generated. In the state shown in FIG. 4, the main water stream is approaching the air flow path 431a side (opening 431 side), so that the sub-water stream is generated so as to draw a large vortex. Therefore, the secondary water flow negative pressure is larger than the suction negative pressure. For this reason, the air mixing rate is low (the amount of air mixing is small), and the main water flow is pulled toward the vortex chamber 432 side.

  Subsequently, as shown in FIG. 5, the main water flow caused by the water jetted from the throttle channel 421 changes its traveling direction toward the vortex chamber 432. In the state shown in FIG. 5, the main water flow is separated from the air flow path 431 a, so that room for the air introduced from the air flow path 431 a is increased, and more air is introduced into the air mixing unit 43. On the other hand, since the main water stream is approaching the vortex chamber 432 side, the secondary water stream is generated so as to draw a small vortex. Therefore, the suction negative pressure is larger than the substream negative pressure. For this reason, the air mixing rate increases moderately, and the air mixing amount also increases moderately. Although the suction negative pressure is larger than the sub-water flow negative pressure, the main water flow has an inertia that changes the direction of travel from the state shown in FIG. Continue to change to 432 side.

  Subsequently, as shown in FIG. 6, the main water flow caused by the water jetted from the throttle channel 421 brings its traveling direction closest to the vortex chamber 432 side. In the state shown in FIG. 6, the main water flow is farthest from the air flow path 431 a, the room for the air introduced from the air flow path 431 a is maximized, and more air is introduced into the aeration unit 43. On the other hand, since the main water stream is closest to the vortex chamber 432 side, the secondary water stream is generated so as to draw a smaller vortex. Therefore, the suction negative pressure is still larger than the sub-water flow negative pressure. For this reason, the air mixing rate increases to the maximum, and the air mixing amount also increases to the maximum. Since the suction negative pressure is completely higher than the sub-water flow negative pressure, the main water flow is pulled toward the air flow path 431a.

  Subsequently, as shown in FIG. 7, the main water flow caused by the water ejected from the throttle channel 421 changes its traveling direction from the vortex chamber 432 side to the air channel 431a side. In the state shown in FIG. 7, since the main water flow approaches the air flow path 431a, the room for the air introduced from the air flow path 431a to enter is smaller than the state of FIG. 6 (larger than the state shown in FIG. 5), A moderate amount of air is introduced into the aeration unit 43. On the other hand, since the main water flow is away from the vortex chamber 432 side, the secondary water flow is generated so as to draw a large vortex. Therefore, the suction negative pressure is smaller than the substream negative pressure. For this reason, the air mixing rate is moderately reduced, and the air mixing amount is also moderately reduced. Although the suction negative pressure is smaller than the sub-water flow negative pressure, the main water flow has an inertia that changes the direction of travel from the state of FIG. 6 to the air flow path 431a. It continues to change to the flow path 431a side. When the state shown in FIG. 7 further proceeds, the state returns to the state shown in FIG. 4 and the above-described cycle is repeated.

  Due to the operation principle as described above, the suction negative pressure and the substream negative pressure repeatedly vibrate so as to have opposite phases. In FIG. 8, in order to show the relationship between this suction negative pressure and the substream negative pressure, the magnitude of the force that draws the main water flow is shown in time series. As shown in FIG. 8, when the force that draws the main water flow toward the vortex chamber 432 is the weakest, the force that draws the main water flow toward the air flow path 431a is the strongest (see FIG. 6). On the other hand, when the force that draws the main water flow toward the vortex chamber 432 is the strongest, the force that draws the main water flow toward the air flow path 431a is the weakest (see FIG. 6). There is also a state in which the force that draws the main water flow toward the vortex chamber 432 and the force that draws the main water flow toward the air flow path 431a are instantaneously balanced (see FIGS. 5 and 7). However, the force that draws the main water flow toward the vortex chamber 432 continues to decrease, whereas the force that draws the main water flow toward the air flow path 431a continues to increase (see FIG. 5). Since the force for attracting the main water flow toward the air flow path 431a continues to decrease with respect to the state where the force for attracting the main flow continues to increase (see FIG. 7), the traveling direction of the main water flow actually continues to fluctuate.

  The photograph which image | photographed the internal state at the time of passing water through the shower apparatus F1 comprised by the operation | movement principle mentioned above is shown to (A) and (B) of FIG. 9A is a photograph of an actual water flow state in the state described with reference to FIG. 4, and FIG. 9B is an actual state in the state described with reference to FIG. This is a photograph of the water flow condition.

  The photograph which image | photographed the state at the time of discharging water from the shower apparatus F1 comprised by the operating principle mentioned above is shown in FIG. As shown in FIG. 10, when water is discharged from the shower device F1, water discharged with a small amount of air mixing and a large amount of water and water discharging with a large amount of air mixing and a large amount of water are alternately repeated to form pulsating water discharge. On the other hand, even in the shower device F2 that does not mix air, the pulsating water discharge as in the present embodiment is not realized in the shower device F3 that mixes air but does not generate pulsating water discharge.

  As described above, the shower apparatus F1 according to the present embodiment is a shower apparatus that discharges bubble-mixed water in which air is mixed, and is provided on the downstream side of the water supply section 41 and the water supply section 41 that supplies water, The flow passage cross-sectional area is smaller than that of the water supply portion 41, the flow velocity of the passing water is increased, and the throttle portion 42 that is jetted downstream as the main water flow is provided on the downstream side of the throttle portion 42, and air is mixed into the main water flow An air mixing portion 43 in which an opening 431 and an air flow path 431a for forming bubble mixed water are formed, and a plurality of water spray holes provided on the downstream side of the air mixing portion 43 for discharging the bubble mixed water The water discharge part 44 in which 443 is formed.

  The shower apparatus F1 forms an inclined surface 421c that directs the traveling direction of the main water stream toward the air flow path 431a and a sub-water stream as a sub-water stream forming means for forming a sub-water stream having a traveling direction different from that of the main water stream. And a vortex chamber 432 for further promotion. The shower apparatus F1 changes the amount of air mixed in the main water flow in the air mixing unit 43 by periodically changing the traveling direction of the main water flow by the action of the sub-water flow.

  According to the present embodiment, air is mixed into the main water flow ejected from the throttle unit 42 in the air mixing unit 43 to form bubble mixed water, and the bubble mixed water is discharged from the water discharge unit 44. A certain water discharge can be enjoyed. Furthermore, a sub-water flow forming means is provided, and a sub-water flow having a traveling direction different from that of the main water flow is formed by the sub-water flow forming means. Since the advancing direction of the main water flow is periodically changed by the action of the sub-water flow (see FIG. 9), the amount of air mixed in the main water flow at the air mixing unit 43 can be changed (FIG. 10). reference). By changing the amount of air mixed in, the instantaneous flow rate of the bubble mixed water discharged from the water discharge section changes greatly, and the strength of the water flow that hits the user is generated. The user feels that when the air mixing rate is low, the instantaneous flow rate of the bubbling water increases, so it feels that a strong water flow has been hit, while when the air mixing rate is high, the instantaneous flow rate of the bubbling water is low. We feel that we were hit by weak water flow because it decreases.

  In the present embodiment, the water discharge that gives the pulsating stimulus as described above is realized by forming a secondary water flow that periodically changes the traveling direction of the main water flow. There is provided a shower apparatus F1 that can provide a comfortable stimulus for a user with a simple configuration without separately providing a pump for changing the position.

  Moreover, in this embodiment, a subwater flow formation means forms a subwater flow so that a subwater flow negative pressure may be generated in the vicinity of the main water flow.

  In order to change the traveling direction of the main water flow by the sub-water flow, it is a simple and reliable method to generate pressure fluctuations caused by the sub-water flow in the vicinity of the main water flow. In the case of the present embodiment, as described above, air is taken in from the opening 431 and the air flow path 431a of the air mixing part 43 to form the bubble mixed water, so that the air mixing part 43 is in a negative pressure state. . Therefore, in this preferred embodiment, the traveling direction of the main water flow is periodically changed by generating a sub-water flow negative pressure in the vicinity of the main water flow so as not to reduce the negative pressure in the aeration unit 43.

  Further, in the present embodiment, the auxiliary water flow forming means forms the auxiliary water flow by the main water flow injected into the aeration unit 43.

  As described above, since the sub-water flow is formed by the main water flow, the traveling direction of the main water flow can be periodically changed with a simpler configuration without separately providing a special mechanism for generating the sub-water flow.

  Moreover, in this embodiment, the advancing direction of the main water flow is periodically changed by the pressure difference between the suction negative pressure generated to suck air from the opening 431 to the air mixing part 43 and the sub-water flow negative pressure. The secondary water flow forming means changes the secondary water flow negative pressure by the action of the secondary water flow and changes the pressure difference (see FIGS. 4 to 8).

  If attention is paid only to changing the traveling direction of the main water flow, it is sufficient that a negative pressure acting in a direction intersecting with the traveling direction of the main water flow is generated, and air is sucked from the opening 431 in order to generate bubble mixed water. It is also conceivable to change the traveling direction of the main water flow only by the fluctuation of the suction negative pressure generated at the time. However, if it is attempted to change the traveling direction of the main water flow only by the action of the suction negative pressure, it is assumed that the pressure balance due to the fluctuation of the suction negative pressure and the main water flow is balanced and the movement of the main water flow stops. Therefore, since the traveling direction of the main water flow is periodically changed by the pressure difference between the suction negative pressure and the substream negative pressure, the suction negative pressure and the substream negative pressure interact with the main water flow. It is possible to prevent the main water flow from stopping due to balance. As described above, the traveling direction of the main water stream is changed by changing the sub-stream water pressure, so that the traveling direction of the main water stream can be periodically changed with a simpler configuration.

  Further, in the present embodiment, the auxiliary water flow forming means forms the auxiliary water flow so as to increase the auxiliary water flow negative pressure when the suction negative pressure decreases and to decrease the auxiliary water flow negative pressure when the suction negative pressure increases (FIG. 8).

  As described above, when the suction negative pressure is reduced, the sub-water flow negative pressure is increased, and when the suction negative pressure is increased, the sub-water flow negative pressure is reduced, so that the force acting on the main water flow is increased between the suction negative pressure side and the sub-water flow negative pressure side. It can be made to act greatly alternately. Therefore, fluctuations in the traveling direction of the main water flow can be caused more reliably.

  In the present embodiment, the auxiliary water flow forming means has a vortex chamber 432 serving as a guide for forming the auxiliary water flow into a spiral flow.

  In this way, the vortex chamber 432 serving as a guide for forming the auxiliary water flow is provided, and therefore the vortex flow forming the auxiliary water flow can be increased or decreased depending on the size of the vortex chamber 432. . Therefore, the size of the vortex chamber 432 can be adjusted according to the amount of negative pressure required for the secondary water flow negative pressure generated by the secondary water flow, and an appropriate secondary water flow negative pressure can be generated.

  In the present embodiment, the vortex chamber 432 is provided on the opposite side of the opening 431 and the air flow path 431a across the main water flow and at a position facing the opening 431 and the air flow path 431a.

  In this way, the vortex chamber 432 that generates the sub-water flow negative pressure, the opening 431 that generates the suction negative pressure, and the air flow path 431a are formed at opposing positions. The opposite direction of the main water flow can be generated and the traveling direction of the main water flow can be changed periodically.

  In the present embodiment, the vortex chamber 432 is provided at the end of the aeration unit 43 on the throttle unit 42 side.

  In the present embodiment, the end of the air mixing part 43 on the throttle part 42 side is closest to the main water flow injection side and is the place where the flow speed of the main water flow is the fastest. Thus, since the vortex chamber 432 is formed at the place where the flow velocity of the main water flow is the fastest, the flow velocity of the vortex flow is also increased, and a larger sub-water flow negative pressure can be generated.

  Moreover, in this embodiment, it is also preferable that the throttle part 42 inclines the direction which injects a main water flow toward the opening 431 and the air flow path 431a side rather than the position where a substream is formed.

  Thus, since the direction in which the main water flow is injected is inclined toward the opening 431 and the air flow path 431a, the traveling direction of the main water flow injected from the throttle portion 42 is inclined toward the opening 431 and the air flow path 431a (see FIG. 4 and FIG. 9). When a sub-water flow is formed by jetting the main water flow, a sub-water negative pressure is generated. Therefore, the traveling direction of the main water flow inclined toward the opening 431 and the air flow path 431a can be inclined toward the sub-water flow side (FIG. 5 and FIG. 9). Thus, by pulling the traveling direction of the main water stream inclined in advance toward the opening 431 and the air flow path 431a toward the auxiliary water stream, the fluctuation range of the traveling direction of the main water stream can be increased, and the amount of air mixed in can be increased. Variations can also be increased. Accordingly, the fluctuation range when the physically strong water flow and the weak water flow are hit is increased, and the user can receive a stronger pulsating stimulus.

  In the present embodiment, the main water flow is formed so as to be a water flow that does not allow the air sucked from the opening 431 and the air flow path 431a to enter the auxiliary water flow side.

  As described above, the air sucked from the opening 431 and the air flow path 431a by the main water flow is prevented from entering the sub water flow side, so the sub water flow is formed more stably and the stable sub water flow negative pressure is generated. can do.

  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. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. For example, the elements included in each of the specific examples described above and their arrangement, materials, conditions, shapes, sizes, and the like are not limited to those illustrated, but can be changed as appropriate. Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

F1: Shower device 4: Main body 4A: Cavity 4Aa: Contact surface 4Ab: Concave portion 4Ac: Concave portion 4Ad: Through hole 4B: Shower plate 4Ba: Contact surface 4Bb: Through hole 4D: Introduction piece 4Da: Large diameter portion 4Daa: Spear Portion 4Db: Small diameter portion 4E: Sealing piece 4a: Upper surface 4b: Lower surface 41: Water supply portion 41d: Water supply port 42: Restriction portion 42d: Restriction port 42e: Water guiding recess 421: Restriction flow path 421b: End surface 421c: Inclined surface 43 : Air mixing part 431: Opening 431 a: Air flow path 432: Vortex chamber 44: Water discharge part 44 a: Side wall 44 b: Side wall 44 c: Side wall 443: Sprinkling hole F 2: Shower device F 3: Shower device

Claims (1)

A shower device that discharges air mixed with air bubbles,
A water supply section for supplying water;
A throttle part provided on the downstream side of the water supply part, reducing the flow passage cross-sectional area than the water supply part, increasing the flow rate of the passing water and injecting it downstream as the main water stream,
An air mixing section that is provided on the downstream side of the throttle section, has an air introduction port for introducing air, and mixes air introduced from the air introduction port into the main water flow to generate bubble mixed water;
A water discharge part provided on the downstream side of the air mixing part and formed with a plurality of water spray holes for discharging the bubble mixed water;
Further, in order to periodically change the amount of air mixed into the main water flow, a sub-water flow for periodically changing the traveling direction of the main water flow is formed in the vicinity of the main water flow in the air mixing portion. A substream forming means,
The secondary water flow forming means is provided on the opposite side of the air introduction port with the main water flow interposed therebetween, and serves as a guide for making the secondary water flow into a spiral flow that generates a negative pressure that draws the main water flow. Having a concave vortex chamber,
The diaphragm portion is to inject the main water flow between the vortex chamber and the air inlet port, together with the air introduced from the air inlet is configured so as not to penetrate into the side water stream side, the main A shower apparatus characterized in that a direction in which a water flow is jetted is inclined toward the air inlet side with respect to the vortex chamber .