JP2006272042A - Massage nozzle and shower apparatus using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a massage nozzle for generating water discharge causing a feeling of highly fluctuating jetting force by stably rotating a whirling impeller even at a low water pressure and intermittently jetting the water discharge to a collective narrow range. <P>SOLUTION: The massage nozzle is provided with a nozzle base 8; a nozzle body having an injection hole 16; a whirling plate 10 for generating a whirling flow by a plurality of whirling holes 17; and the whirling impeller 11 having a shutting-off surface 22 and a releasing surface 23. A plurality of jet holes 16 are arranged at a jet part 15 arranged at two positions opposed to the whirling center of the whirling impeller 11. Since the water discharge with feeling of strength can be jet from the jet parts at two positions in a uniform direction with less scattering by jetting hot water and water by alternately switching the jet parts, a massage effect with a feeling of highly fluctuating jetting force can be obtained even at a low water pressure. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a massage nozzle that provides strong and weak water discharge and a shower device using the same.

  Conventionally, this type of massage nozzle structure has a swirling mechanism, swirl chamber, rotating mechanism, and jet part in the shower head, and the hot water flowing into the shower head is swirled by the swirling mechanism, and the swirling flow rotates. By rotating the mechanism and sequentially switching the inflow of hot water into the ejection part by the rotation mechanism, the water discharge with strong and weak feeling is ejected.

FIG. 9A is a cross-sectional view showing a conventional massage nozzle structure for spraying water with a strong and weak feeling described in Patent Document 1, and FIG. 9B is a plan cross-sectional view showing a rotating mechanism. As shown in the figure, the shower head 1 has a swivel hole 2, a swirl chamber 3, a rotating blade 4, a shielding surface 5 of the rotating blade, an open surface 6, and three ejection portions 7. The flowing hot water passes through the swirl hole 2 to form a swirl flow and flows into the swirl chamber 3 to rotate the rotating blades 4 in the swirl chamber 3. The rotating blade 4 is provided with a shielding surface 5 and an opening surface 6, and the shielding surface 5 and the opening surface 6 are switched while rotating, so that hot water sequentially flows into the ejection portions 7 at three locations. As a result, hot water is intermittently ejected sequentially from each ejection part, so that it is possible to provide massage water spouting that gives the body a sense of strength and weakness.
JP 59-151958 A

  However, in the conventional configuration, since there are three ejection portions, the flow rate per location is dispersed, and there is a problem that water discharge is weak at a low water pressure. In addition, since the contact area between the rotating blade and the ejection portion is large, the rotating blade easily stops due to friction on the contact surface at low water pressure, and water discharge is not stable. Moreover, since the path | route length of the ejection part was short, the force of the turning direction remained in the water discharge, and had the subject that it was easy to be scattered. Moreover, when the flow path length of the ejection part is long, for example, in the resin molding, the ejection part is conspicuous, and there is a problem that the design is not round and has a sense of unity.

  The present invention solves the above-described conventional problems, and even when the water pressure is low, the rotating blades stably rotate, so that the feeling of water discharge is strong, and the water discharge direction is uniform aiming at a concentrated narrow range. The object is to provide a massage nozzle that generates water discharge with little scattering.

  In order to solve the above-mentioned conventional problems, the massage nozzle structure of the present invention is provided with convex portions of a certain height or less on the contact surface while providing two jetting portions, which are three conventional locations, and the flow path length of the jetting portion. Is a predetermined length.

  Thereby, since the flow rate per location is increased by concentrating the ejection portions from 3 locations to 2 locations, water discharge with a stronger feeling than before is realized. Moreover, although it was the water discharge shape which makes it sense that it is rotating in three places, it will discharge water alternately from an ejection part by making it into two places, and provide the new new water discharge shape which does not feel rotation. I can do it. Further, since there is a convex portion having a certain height or less, the contact surface between the rotating blade and the bottom of the swirl chamber is reduced, and stable sliding is performed even at low water pressure. In addition, by setting the flow path length of the ejection part to a predetermined length, the direction of water discharge is uniform and less scattered without being scattered, and it is possible to apply water discharge with a sense of strength to concentrated sites.

  In addition, for the problem that the eruption part does not look good in design, it is possible to provide a massage nozzle that is rounded and has a good appearance by adopting a structure that is covered with a soft cover. .

  The massage nozzle structure of the present invention can realize water discharge that gives a strong sense of strength even at low water pressure, and can provide a more effective massage effect.

  According to a first aspect of the present invention, a swirling flow is generated by a nozzle base having an inflow hole in a central portion, a nozzle body having a plurality of ejection holes having a predetermined path length, and a plurality of swirling holes disposed substantially on the circumference. And a rotating blade having a shielding surface and an open surface, the rotating blade is rotatably installed in a swirling chamber formed by the nozzle body and the rotating plate, and the ejection hole is at the rotation center of the rotating blade. Two jets are made by disposing a plurality of jet holes at two jetting parts installed at two opposite locations, and intermittently jetting by switching the jet parts alternately and jetting hot water. Since it is possible to spout water with a feeling of strength in a uniform direction with less scattering from the part, a massage effect with a stronger feeling can be obtained even at low water pressure. Although it was a water discharge shape that makes you feel that it is rotating in three places, it will cause water to be discharged alternately from the ejection part by making it two places, providing a new unprecedented water discharge shape that does not make you feel rotation I can do it.

  In the second invention, in particular, the inner surface of the nozzle body with which the rotating blade of the first invention contacts is provided with a convex portion having a height of 0.5 mm or less, so that the rotating blade is stable even at low water pressure. Thus, since the gap between the stepped portions is small, the water drainage by the shielding surface is good, and water discharge with a sense of strength can be ejected.

  In the third invention, in particular, by setting the path length of the ejection part of the first or second invention to be not less than 3 times and not more than 5 times the ejection diameter, the direction of water discharge is rectified in the path of the ejection part. It is possible to erupt evenly and with less scattering. Thereby, it is possible to concentrate water in a narrow range and apply water discharge with a sense of strength.

  In the fourth invention, in particular, a cover means made of a soft material is provided around the ejection part of any one of the first to third inventions, for example, to cover a protrusion of the ejection part having a predetermined length during resin molding. It is possible to provide a well-designed massage nozzle that is round and has a sense of unity. Moreover, since it is a soft material, it does not hurt even if it touches a body, and even if it contacts other members, it is hard to be damaged.

  In the fifth invention, in particular, by using the massage nozzle of any one of the first to fourth inventions for a shower, a massage effect can be obtained by using the shower, and a comfortable shower bath can be performed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view showing the structure of a massage nozzle according to the first embodiment of the present invention, FIG. 2 is a perspective view showing the appearance of the massage nozzle, and FIG. 3 is a cross-sectional perspective view of the massage nozzle. 4 shows a perspective view of the swirl chamber of the nozzle body, FIG. 5 shows a perspective view of the swirl plate, and FIG. 6 shows a perspective view of the rotary blade. FIG. 7 is a cross-sectional perspective view of the massage nozzle showing a state where the cover is attached, and FIG. 8 is an external perspective view thereof.

  As shown in FIGS. 1, 2, and 3, the massage nozzle of the present invention has a nozzle body 9 assembled to a nozzle base 8, and an inflow hole 8 a through which hot water flows is provided at the center of the nozzle base 8. The swivel plate 10 and the rotary blade 11 are incorporated in the space formed by the nozzle base 8 and the nozzle body 9.

  As shown in FIG. 4, the swirl chamber 12 is formed by the nozzle body 9 and the swirl plate 10, and the inner surface 13 of the nozzle body 9 of the swirl chamber 12 has an annular convex portion 14. On the inner surface 13 of the nozzle body 9 of the swirl chamber 12, there are ejection portions 15 in the vicinity of the convex portions 14, and there are two ejection portions 15 that form a pair of approximately 180 degrees. The ejection part 15 is composed of a plurality of ejection holes 16.

  As shown in FIG. 5, the swirl plate 10 is formed with a large number of swirl holes 17 that penetrate obliquely in a direction of approximately 30 to 60 degrees in the circumferential direction. Further, a conical portion 18 that smoothly diffuses the flow of water and a shaft 19 that supports the rotation of the rotary blade 11 are configured. Further, a protruding portion 20 is configured to prevent the turning plate itself from rotating due to the turning flow.

  As shown in FIG. 6, the rotary blade 11 has a large number of blades 21, and the end surface of the blade is composed of a shielding surface 22 shielded approximately 180 degrees and an open surface 23 opened approximately 180 degrees. A shaft hole 24 through which a shaft 19 that supports rotation passes is penetrated at the center of the rotary blade 11.

  As shown in FIG. 7, a cover 25 is fitted so as to cover the tip of the ejection part 15 of the massage nozzle, and only the ejection hole 16 is visible.

  As shown in FIG. 8, the cover 25 covering the massage nozzle has a round shape and is made of a soft material.

  About the massage nozzle comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, as shown in FIG. 1, hot water flows into the nozzle base 8 and is smoothly diffused over the entire surface by the conical portion 18 of the swivel plate 10. The diffused hot water flows into the swirl chamber 12 while passing through the swirl hole 17 obliquely penetrating in the direction of approximately 30 to 60 degrees while forming a flow having a swirl force in the rotation direction.

  The swirl chamber 12 has a rotating blade 11 pivoted on the shaft 19 of the swirl plate 10, and when the hot water hits the blade 21, the rotating blade 11 rotates while being pressed against the convex portion 14 of the bottom surface 13 of the swirl chamber.

  Since the contact area to the swirl chamber bottom surface 13 is limited by the convex portion 14, the frictional force due to the pressing of the rotary blade 11 is minimized and the surface rotates smoothly. The rotary blade 11 has a shield surface 22 and an open surface 23 that are shielded and opened by approximately 180 degrees, and hot water flows into the ejection hole 16 intermittently by switching between shielding and opening while rotating the flow path to the ejection portion 15. And ejected intermittently from the nozzle tip.

  Here, by setting the height of the convex portion to 0.5 mm or less, hot water enters the gap between the rotary blade 11 and the swirl chamber bottom surface 13 and prevents the hot water from flowing directly into the ejection hole 16. I can do it. If the height of the convex portion is greater than 0.5 mm, hot water continues to flow directly into the ejection hole 16 even when the shielding surface 22 shields the ejection hole 16.

  Although the water in the swirling direction remains in the hot water flowing into the ejection hole 16, the path length of the ejection hole 16 is more than three times the diameter of the ejection hole, so the direction of hot water discharge is evenly arranged, Water discharge with less scattering. If the path length is greater than five times the diameter of the ejection hole, the pressure loss due to the path length at the ejection hole will increase, making it difficult to realize vigorous water discharge.

  Here, since there are two jetting parts in the past, which are three places in a conventional manner, the flow rate of hot water discharged from one jetting part increases, so when massaging water is applied to the body, You can feel a strong and strong feeling. In addition, the water discharge shape that spouted while rotating at the three conventional locations becomes a water discharge shape that alternately spouts from the nozzle by using two locations, thus providing a new water discharge shape that does not make the user feel the rotation direction There is a novelty that can be done.

  By making the path length of the ejection hole 16 at least three times the diameter of the ejection hole diameter, the shape of the tip of the nozzle protrudes from the law that the molding finish is generally better when the thickness is constant during resin molding. Become. Here, as shown in FIG. 7, the cover is formed of a soft material, for example, an elastomer material, and is formed into a shape in which only the tip of the ejection hole 16 is projected, thereby obtaining a rounded massage nozzle shape. In addition, since it is a soft material, it does not hurt when it hits the body, and is not easily damaged when it comes into contact with other members.

  As described above, in the present embodiment, since hot water is intermittently discharged from the two ejection portions alternately, it is possible to realize massage water discharge that feels strong and weak even at low water pressure.

  In the present embodiment, the convex portion on the swirl chamber bottom surface 13 is formed in three annular shapes, but is not limited to this shape, and may be arranged in one annular shape around the rotation axis. In addition, even if it is not annular, it may be a form in which a convex stepped portion is provided so that the contact area with the rotary blade is small. At this time, the height of the convex stepped portion, which is the distance between the injection hole inlet and the shielding portion of the rotary blade, is limited to 0.5 mm or less.

  In this embodiment, the massage nozzle is configured as a single unit. However, a shower device that is built in a hand shower or embedded in a wall surface, a storage shelf, or a counter is very good.

  As described above, the massage nozzle and shower device according to the present invention is a shower device that gives a feeling of massage to the body, but is incorporated and used as a local washing nozzle of a warm water toilet seat or incorporated as a dish washing nozzle of a dishwasher. It can also be applied to applications.

Sectional drawing which shows the massage nozzle in Embodiment 1 of this invention External appearance perspective view of massage nozzle in Embodiment 1 of the present invention Sectional perspective view of the massage nozzle in Embodiment 1 of this invention The perspective view of the swirl chamber of the massage nozzle in Embodiment 1 of this invention The perspective view of the turning board of the massage nozzle in Embodiment 1 of this invention The perspective view of the rotary blade of the massage nozzle in Embodiment 1 of this invention Sectional perspective view of the massage nozzle which shows the state which mounted | wore the cover in Embodiment 1 of this invention. 1 is an external perspective view of a massage nozzle showing a state where a cover is attached according to Embodiment 1 of the present invention. (A) Sectional view of a conventional hand shower device (b) Planar sectional view showing a rotation mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 8 Nozzle base 9 Nozzle main body 10 Rotating plate 11 Rotating blade 12 Rotating chamber 14 Convex part 15 Ejecting part 16 Ejecting hole 17 Rotating hole 22 Shielding surface 23 Opening surface 25 Cover

Claims (5)

A nozzle base having an inflow hole in the central portion, a nozzle body having a plurality of ejection holes having a predetermined path length, and a swirl plate for generating swirl flow by a plurality of swirl holes disposed substantially on the circumference; A rotating blade having a shielding surface and an open surface, the rotating blade is rotatably installed in a swirl chamber formed by a nozzle body and a swirl plate, and the ejection hole is located at two locations facing the rotation center of the rotating blade A massaging nozzle which is ejected intermittently by arranging a plurality of ejection holes in each of the ejection parts installed on the tub and alternately switching the ejection parts to eject hot water. The massage nozzle according to claim 1, wherein a convex portion having a height of 0.5 mm or less is provided on the inner surface of the nozzle body with which the rotary blade comes into contact. 3. The massage nozzle according to claim 1, wherein a path length of the ejection portion is 3 to 5 times the ejection diameter. 4. The massage nozzle according to any one of claims 1 to 3, further comprising cover means made of a soft material around the ejection portion. The shower apparatus using the massage nozzle of any one of Claims 1-4.