JP2016214600A - shower head - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shower head capable of acquiring sufficient stimulation by air bubbles, suppressing extreme temperature change of a head body, and preventing crack generation on metal plating or coating applied to a surface of the head body or easy peeling of the metal plating or coating.SOLUTION: A venturi hole 21 for communicating inside of a water conduction pipe 20 and an air passage 12 is formed on a part just above a venturi part 30 on the water conduction part 20, and an air suction hole 14 for introducing ambient air to the air passage 12 is formed on an upper end of a shower head body 10. A mixing chamber member 40 for forming a space in the surrounding thereof, for communicating with the suction hole 14 and the air passage 12, and mixing hot water discharged from the water conduction pipe 20 and air sucked from the venturi hole 21 and then directing the hot water and air to a discharge board 13, is assembled in the upper part of the shower head body 10.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a shower head used when washing the body and hair.

  The shower head jets hot and cold water in the form of a shower to enhance the effects of body washing and hair washing, but those aimed at other functions and effects are also proposed in Patent Documents 1 to 3, for example. As shown, there are various types. In particular, in the shower heads proposed in Patent Documents 1 to 3, it is expected that bubbles (air bubbles) are mixed in hot water so that the stimulation of the body and scalp by the bubbles can be exhibited. It is what you are doing.

  The applicant has also proposed various types of shower heads in Japanese Patent No. 3747323, etc., but further research will cause problems that the inventors of the above Patent Documents 1 to 3 have not noticed. I realized.

Japanese Patent Laid-Open No. 2015-27331, abstract JP 2014-204796 A, Abstract Japanese Patent Application Laid-Open No. 2014-133443, Abstract

  In general, a main body of a shower head or the like is often formed of a so-called synthetic resin material in order to facilitate its molding or to provide it at a low cost. Naturally, the body formed of this synthetic resin material is plated and painted to finish it beautifully.

  Thus, hot water or water is passed through the main body or the like subjected to plating or painting, and the temperature may be variously changed even during use. Of course, in the severe winter season, hot water near 40 ° C may be passed through the shower head that has been below freezing point, so there is a large temperature difference between the plating and painting and the main body to which this is applied. There are things to do.

  If a large temperature difference occurs between the plating or painting and the main body to which this is applied, and this is repeated, the plating or painting is easily peeled off from the main body or the like, and it is easy to win. In particular, when the main body is made of synthetic resin, such as a showerhead in recent years, the thermal expansion coefficient of plating or painting and the main body, etc. may differ greatly, and cracks may occur in the plating or painting. In other words, the phenomenon that the plating or coating is peeled off from the main body or the like is likely to occur.

  Therefore, the present inventors have conducted various studies on how to prevent cracks in the plating and coating and how to prevent these plating and coating from being easily peeled off from the main body. In particular, in the case of a shower head in which bubbles are mixed in hot water, the present inventors have realized that the air from which bubbles are generated may be used as a coolant.

  That is, the object of the present invention is to provide sufficient stimulation by air bubbles by using the air taken in as a coolant or a heat insulating material, while suppressing an extreme temperature change of the shower head body, It is an object of the present invention to provide a shower head capable of preventing the applied plating or coating from cracking or easily peeling off.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“Shower head body 10, water pipe 20 accommodated in the storage passage 11 of the shower head body 10 through the air passage 12, a venturi section 30 provided at the lower end of the water pipe 20, the shower head The shower head 100 includes a shower water discharge plate 13 attached to the upper part of the main body 10, and supplies hot water from a hot water supply source to the lower part of the water pipe 20 and discharges it as shower water from the discharge plate 13. Because
A venturi hole 21 for communicating the inside of the water pipe 20 and the air passage 12 is formed in a portion of the water pipe 20 located immediately above the venturi portion 30, and outside air is passed through the air passage 12 at the upper end of the shower head body 10. Forming an intake hole 14 for introducing
Furthermore, hot water coming from the water pipe 20 and air sucked from the venturi hole 21 are mixed while forming a space in the upper part of the shower head body 10 so as to communicate with the air intake hole 14 and the air passage 12 in the periphery. The shower head 100 is characterized by incorporating a mixing chamber member 40 for directing these hot water and air to the discharge plate 13 ".
It is.

  In the shower head 100 according to the first aspect, as shown in FIGS. 1 to 3, the water conduit 20 is accommodated in the accommodating passage 11 of the shower head body 10 via the air passage 12, and the lower end of the water conduit 20. The venturi section 30 is provided in the section. In this venturi section 30, when hot water is supplied into the water pipe 20, the air in the air passage 12 formed around the water pipe 20 is allowed to flow through the water pipe 20 positioned immediately above the venturi section 30. The air is sucked from the venturi hole 21 by the venturi effect in the venturi section 30 and the sucked air is supplied from the intake hole 14 formed at the upper end of the shower head body 10.

  In other words, in the shower head 100 according to the first aspect, air from the intake hole 14 at the upper end of the shower head main body 10 is introduced into the water pipe 20 from the venturi hole 21 at the lower end of the water pipe 20. 20 or in the mixing chamber member 40 provided at the upper end of the water pipe 20, the air that has entered the upper end of the shower head main body 10 is poured into the hot water supplied to the lower end of the shower head main body 10 by a hose (not shown). Mix as bubbles. Thereby, in this shower head 100, first, hot water mixed with bubbles can be discharged as shower water from the upper discharge plate 13, and stimulation by the bubbles is given during the shower.

  In the shower head 100 according to the first aspect, the water pipe 20 through which hot water having a temperature higher than that of the surroundings and the mixing chamber member 40 connected to the water pipe 20 are heated by the hot water. Since the air passage 12 is present around the mixing chamber member 40 and the mixing chamber member 40, the heat of the water pipe 20 and the mixing chamber member 40 is “insulated” or “cooled” with respect to the shower head body 10 side. Will be. As a result, the plating or coating formed on the surface of the shower head body 10 is less likely to receive a thermal shock due to the heat of the hot water supplied to the water pipe 20, causing cracks, or from the surface of the shower head body 10. It will not come off.

  Furthermore, in this shower head 100, since the air intake hole 14 is formed at the upper end of the shower head main body 10, the outside air introduced from the air intake hole 14 starts from the entire upper part of the air passage 12 on the back surface side of the discharge plate 13. Then, the whole air passage 12 that follows this is spread and “insulated” or “cooled” with respect to the entire inner surface of the shower head body 10.

  Therefore, in the shower head 100 according to the first aspect, the air taken in can be used as a coolant or a heat insulating material, and sufficient stimulation by bubbles can be obtained, and an extreme temperature change of the shower head body 10 can be suppressed. It is possible to prevent the plating or coating applied to the surface from cracking or peeling off.

Moreover, in order to solve the said subject, the means which invention based on Claim 2 took about the shower head 100 of the said Claim 1,
“The passage securing protrusion 42 that is in contact with the inner surface of the shower head body 10 is formed outside the bottom surface 41 of the mixing chamber member 40.
It is.

  In the shower head 100 according to the second aspect, as shown in FIG. 2, FIG. 3, and FIG. 4, in particular, the passage securing protrusion 42 is positively formed outside the bottom surface 41 of the mixing chamber member 40. As shown in FIG. 3, these passage securing protrusions 42 exist between the bottom surface 41 of the mixing chamber member 40 and the inner surface of the shower head main body 10, so that the intake holes 14 of the air passage 12 are provided. The passage through which the air passes is ensured.

  In particular, since the mixing chamber member 40 must have a sufficient width with respect to the discharge plate 13, the outer surface of the bottom surface 41 having a large area is easily inclined when assembled in the storage passage 11. For this reason, the air passage 12 is likely to be blocked by easily coming into contact with the inner surface of the shower head main body 10 side. However, by forming the passage securing protrusion 42 on the outer side of the bottom surface 41 of the mixing chamber member 40, the inclination of the mixing chamber member 40 itself can be suppressed, and the air that makes the air from the intake hole 14 worsen This prevents the passage 12 from being crushed.

  Therefore, the shower head 100 according to the second aspect of the invention can perform the same function as that of the first aspect of the invention and can always make the air passage 12 sufficient.

As described above, in the present invention,
“Shower head body 10, water pipe 20 accommodated in the storage passage 11 of the shower head body 10 through the air passage 12, a venturi section 30 provided at the lower end of the water pipe 20, the shower head The shower head 100 includes a shower water discharge plate 13 attached to the upper part of the main body 10, and supplies hot water from a hot water supply source to the lower part of the water pipe 20 and discharges it as shower water from the discharge plate 13. Because
A venturi hole 21 for communicating the inside of the water pipe 20 and the air passage 12 is formed in a portion of the water pipe 20 located immediately above the venturi portion 30, and outside air is passed through the air passage 12 at the upper end of the shower head body 10. Forming an intake hole 14 for introducing
Furthermore, hot water coming from the water pipe 20 and air sucked from the venturi hole 21 are mixed while forming a space in the upper part of the shower head body 10 so as to communicate with the air intake hole 14 and the air passage 12 in the periphery. Incorporating a mixing chamber member 40 for directing these hot water and air to the discharge plate 13 "
There is a main feature in the structure, and by using the air to be taken in as a cooling material or a heat insulating material, sufficient stimulation by bubbles can be obtained, and an extreme temperature change of the shower head body 10 can be suppressed, It is possible to provide the shower head 100 that can prevent the plating or coating applied to the surface from cracking or peeling off easily.

It is a front view of shower head 100 concerning the present invention. It is the longitudinal cross-sectional view which looked along the 1-1 line | wire in FIG. It is the elements on larger scale which expanded and showed the upper part in FIG. The mixing chamber member 40 incorporated in the shower head 100 is shown, (a) is a longitudinal sectional view taken along line 2-2 in (b) of FIG. 5, (b) is a right side view, (C) is a rear view. The mixing chamber member 40 is shown, (a) is a plan view, (b) is a front view, and (c) is a bottom view.

  The invention according to each claim configured as described above will be described with reference to the shower head 100 according to the embodiment shown in the drawings. FIG. 1 is a front view of the shower head 100. In FIG. 1, the shower head 100 is used by holding the center of the shower head body 10 constituting the hand by hand, and shower water is discharged to the upper part of the shower head body 10. A discharge plate 13 is provided. Further, a connecting portion 15 to which a hose from a hot water supply source such as a hot and cold water mixing tap (not shown) is connected is exposed at the lower end of the shower head body 10.

  The shower head main body 10 in the present embodiment is integrally molded using a synthetic resin as a material. As shown in FIG. 2, a storage passage 11 for incorporating a water pipe 20, a mixing chamber member 40, and the like, which will be described later, is provided. The storage passage 11 is formed inside, and the air passage 12 is formed after the water pipe 20 and the mixing chamber member 40 are incorporated. Further, an intake hole 14 for taking outside air into the storage passage 11 is provided at the upper end of the shower head main body 10, and a mixing chamber member 40 described later is attached to the inner surface of the shower head main body 10 which is the back surface of the discharge plate 13. The discharge plate mounting portion 17 is formed.

  The discharge plate 13 attached to the upper portion of the shower head body 10 has a large number of discharge holes 13a for discharging shower water mixed with air, as shown in FIGS. Needless to say. As shown in FIG. 1, these discharge holes 13a are distributed almost in a circle around the mounting screw 13b of the discharge plate 13, but some of the discharge holes 13a are By arranging them on the vertical line of the discharge plate 13, hot water remaining on the back side of the discharge plate 13 when the use of the shower head 100 is stopped can be positively discharged within a short time.

  As shown in FIG. 2, a water pipe 20 through which hot water is mainly passed is stored in the storage passage 11 of the shower head main body 10. The connecting portion 15 is integrally formed. As described above, a hose (not shown) from a hot water supply source is connected to the connecting portion 15. In the connecting portion 15, a flow rate adjusting valve 16 having a water passage hole is provided at the center. is there.

  The flow rate adjusting valve 16 allows hot water from a hose (not shown) to pass through the water pipe 20. The upper passage in the drawing is a small diameter portion 16 a having a smaller diameter than the lower passage. As shown in the lower part of FIG. 2, an intermediate diameter portion 22 on the water pipe 20 side is placed immediately above the small diameter portion 16 a, and the venturi for communicating the inside and outside of the water pipe 20 with the medium diameter portion 22. A hole 21 is formed. The venturi portion 30 is constituted by the small diameter portion 16a on the flow rate adjusting valve 16 side and the middle diameter portion 22 on the water pipe 20 side.

  Therefore, the hot water flowing into the water pipe 20 side from the hose connected to the connection part 15 is squeezed by the small diameter part 16a of the flow rate adjusting valve 16 to increase the pressure, and the water pipe 20 side having a larger diameter than the small diameter part 16a. As soon as it enters the middle diameter portion 22, a venturi effect appears in this hot water, and the pressure inside each venturi hole 21 on the water pipe 20 side becomes lower. As a result, the air in the air passage 12 that is outside the venturi holes 21 is sucked into the water pipes 20 from the venturi holes 21.

  In the water pipe 20 of the present embodiment, a large diameter part 23 is formed on the downstream side of the medium diameter part 22, and an auxiliary pipe constituting a part of the water pipe 20 at the upper end of the large diameter part 23. 24 is attached. A bent portion 24a is formed in the intermediate portion of the auxiliary pipe 24, and the angle required by the discharge plate 13 of the shower head 100 (when the lower portion of the shower head main body 10 is held by hand by the bent portion 24a. The angle at which the surface of the discharge plate 13 can be tilted with respect to the axial direction is adjustable. The upper end of the auxiliary pipe 24 is connected to a mounting hole 44 of the mixing chamber member 40 described later.

  In addition, a support protrusion 25 having a shape that does not block the air passage 12 is formed on the outer periphery of the water pipe 20, and the support protrusion 25 and the connection portion 15 at the lower end form the water pipe 20 with respect to the water pipe 20. In addition to being positioned, the air passage 12 is not blocked except at the lower end.

  As shown in FIGS. 2 and 3, a discharge plate mounting portion 17 is integrally formed on a portion of the upper inner surface of the shower head body 10 facing the discharge plate 13, as shown in FIGS. A mixing chamber member 40 is attached to the plate attachment portion 17. The mixing chamber member 40 is attached to the discharge plate attaching portion 17 by screwing the mounting screw 13b described above into an attachment hole 44 formed in the center of the mixing chamber member 40.

  As shown in FIGS. 3, 4, and 5, the mixing chamber member 40 has a “dish-like” shape in which the bottom surface 41 faces the upper inner surface of the shower head body 10, and the internal space faces the back surface of the discharge plate 13. The mixing chamber member 40 itself is connected to the bent portion 24a of the auxiliary pipe 24 constituting the water flow pipe 20 at the connecting portion 45 formed at the lower end thereof. The In the internal space of the mixing chamber member 40, as shown in FIG. 4A, a number of mixing chambers 43 project, and these mixing chambers 43 enter from the connection portion 45. Hot water and air are mixed.

  As shown in FIGS. 4 and 5, a passage securing protrusion 42 protruding from the outer surface of the bottom surface 41 is integrally formed on the outer surface of the bottom surface 41 of the mixing chamber member 40. As shown in FIG. 3, the passage securing protrusion 42 is a space where the air from the intake hole 14 passes between the inner surface of the shower head body 10 and the bottom surface 41 of the mixing chamber member 40, that is, the air passage 12 is positive. In other words, the mixing chamber member 40 is floated from the shower head main body 10.

  The shape of the passage securing protrusion 42 is not limited to the “disk shape” as shown in FIG. 4C, for example, and any shape can be used as long as the mixing chamber member 40 is floated from the shower head body 10. The thing of such a shape may be sufficient.

DESCRIPTION OF SYMBOLS 100 Shower head 10 Shower head main body 11 Storage passage 12 Air passage 13 Discharge plate 13a Discharge hole 13b Mounting screw 14 Intake hole 15 Connection part 16 Flow control valve 16a Small diameter part 17 Discharge plate attachment part 20 Water pipe 21 Venturi hole 22 Medium diameter part 23 Large-diameter portion 24 Auxiliary tube 24a Bent portion 25 Support projection 30 Venturi portion 40 Mixing chamber member 41 Bottom surface 42 Passage securing projection 43 Mixing chamber 44 Mounting hole 45 Connection portion

Claims (2)

Shower head main body, a water pipe accommodated in the storage passage of the shower head main body via an air passage, a venturi part provided at the lower end of the water pipe, and a shower attached to the upper part of the shower head main body A shower head comprising a water discharge plate, supplying hot water from a hot water supply source to a lower portion of the water pipe and discharging the water from the discharge plate as shower water,
A venturi hole is formed in a portion of the water pipe that is located immediately above the venturi portion, and the inside of the water pipe is communicated with the air passage. Outside air is introduced into the air passage at the upper end of the shower head body. To form a suction hole,
Furthermore, in the upper part of the shower head body, while forming a space communicating with the intake hole and the air passage in the periphery, hot water coming from the water pipe and air sucked from the venturi hole are mixed, A shower head comprising a mixing chamber member for directing these hot water and air to the discharge plate.   The shower head according to claim 1, wherein a passage securing protrusion that abuts against an inner surface of the shower head main body is formed outside the bottom surface of the mixing chamber member.

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