JP2019076671A - Functional shower head and additive module for use in the same - Google Patents

Abstract

To provide a functional shower head having a structure capable of charging an additive module without excessively impairing a flow rate, being hard to cause loss of parts to be attached/detached on loading a module, and being hard to cause water leak around the parts relating to the attachment/detachment thereof.SOLUTION: A movable cylindrical part 12 at a side of a body main part 3 is provided to a supported sprinkler part 9 in a reciprocating manner, while forming an opening cavity 7 in front of a main opening 6 of the body main part 3 of a functional shower head. An additive module 100 is inserted into the opening cavity 7 while the movable cylindrical part 12 is retreated, and the movable cylindrical part 12 is advanced to a seal position SP, and thereby the additive module 100 is loaded in the movable cylindrical part 12.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a functional shower head and an additive module used therefor.

  Patented functional shower head in which an additive is dissolved by loading an additive module such as a capsule of vitamin C or a carbonated tablet for chlorine removal into the shower head to supply warm water, thereby obtaining a shower water flow in which the additive is dissolved. It is proposed by the documents 1-5. Patent Document 1 discloses a structure in which a pressing ring in which a water spray plate is integrated is screwed to an opening of a main body of a shower head, and the pressing ring is removed to load a vitamin C capsule into the main body. It is done. A vitamin C capsule is a spherical resin shell filled with vitamin C powder in which elution holes are provided, and water is received in the main body while stirring and rocking while the elution holes or internal vitamin C are gradually added to the water flow. And a dechlorinated shower stream is obtained.

  Patent Document 2 is a tubular handle in which a carbon dioxide gas bubble is generated by loading a carbon dioxide gas foaming agent tablet into a shower handle and flowing water to obtain a carbonated shower water flow. The rear end is removed and the two spacers load the assembly into the handle with the tablet held with the major surface parallel to the water flow.

  Patent Document 3 discloses a shower head in which a recess is formed by cutting out a part of a handle portion, and a tablet mounting portion is attached and removed in a turning manner. Further, Patent Document 4 discloses a shower head in which a pull-out type tablet mounting portion in which a water spray plate is integrated is attached to and removable from a shower head main body.

  Patent Document 5 discloses a shower head in which a pressing ring having a water spray plate is attached to a main body portion so as to be openable and closable by hinged connection. The holding ring is opened to load the soap into the head, and then water is passed through to obtain a shower water stream in which the soap is dissolved.

Patent No. 5224122 gazette JP, 2016-163785, A Patent No. 4177660 JP, 2015-098681, A Utility model registration No. 3066561 gazette Patent No. 5731650 gazette

  The configuration of the shower head disclosed in Patent Document 1 has a drawback that the retaining ring must be removed from the main body when the vitamin C capsule is loaded in the shower head, and the retaining ring can be easily lost or dropped and damaged. There is.

  Also in the configuration of Patent Document 2, there is a defect that the rear end portion of the handle and the spacer attached to and detached from the shower head main body are easily lost. In addition, carbonic acid tablets that can be loaded into the handle with a small inner diameter have a large dimensional limit, so the amount of water flow that can continue carbonate dissolution decreases and the flow rate of shower water tends to be insufficient at the initial water flow There is also.

  Also in the configuration of Patent Document 3, since the carbonated tablet is loaded into the handle portion of the shower head, the same problem as in Patent Document 2 arises, and since the tablet mounting portion is pushed into the handle portion in a turning manner, There is a problem that it is difficult to ensure liquid tightness and it is easy to cause troubles such as water leaks.

  In the configuration of Patent Document 4, the sealing force between the pull-out type tablet mounting unit attached with the water spray plate and the main unit is weak, causing water leakage, or in the case of high water pressure, the tablet mounting unit loses water pressure and pops out There is a concern that

  In the configuration of Patent Document 5, the pressing ring that is mounted by opening and closing with a hinge is poorer in liquid tightness than the screw-type pressing ring of Patent Document 1 etc., and has a drawback that water leakage and the like easily occur.

  It is an object of the present invention to be able to load the additive module without excessively reducing the flow rate, to prevent the loss of parts to be removed during loading of the module, and to prevent water leakage around parts involved in the removal. An object of the present invention is to provide a functional shower head and an additive module used therefor.

In order to solve the above problems, the functional shower head of the present invention is a shower head main body,
A main body having a water passage having a water inlet at one end and a main opening having a larger opening size than the water inlet at the other end;
A water sprinkling portion disposed so as to form an open gap of a predetermined distance in front of the main opening of the main body portion, and in which a plurality of water jet holes are dispersedly formed;
A water sprinkling joint that joins the water sprinkling portion to the main body main body in such a manner as to form an additive module insertion opening for inserting the additive module in a direction intersecting the water flow direction with respect to the open space;
A seal position in which the front end face side is a water outlet, the rear end side is a main opening and communicates with the water passage of the main part of the main body, and the opening edge of the front end face is in pressure contact with the back face of the water spray portion; And a movable cylindrical portion provided on the outer peripheral surface of the main portion of the main body so as to be axially movable back and forth between a front end surface and a retracted position separated from the back surface of the water spray portion.
In a state where the movable cylindrical portion is retracted, the additive module is made to load the movable cylindrical portion by moving the movable cylindrical portion to the sealing position while inserting the additive module which elutes the additive into the water flow into the open space. It is characterized by having done.

  According to the functional shower head of the present invention, the movable tubular portion on the main body main portion side is provided so as to be capable of advancing and retracting with respect to the sprinkling portion supported while forming an open space in front of the main opening of the main body main portion. The additive module was inserted into the open space in the retracted state, and the movable module was advanced to the sealing position to load the additive module into the movable cylinder. As a result, the loading operation of the additive module is extremely simplified, and there is no fear of loss or drop damage since the water sprinkling portion and the movable cylindrical portion involved in the loading operation are not separated from the main portion of the main body. The movable cylindrical portion moved to the seal position has the opening peripheral edge portion of the front end face pressed against the back surface of the water sprinkling portion in the axial direction in a tension form, so liquid tightness between the movable cylindrical portion and the water sprinkling portion Good security can be achieved, and concerns such as water leaks will be greatly reduced. If a ring-shaped elastic seal member is inserted between the front end opening peripheral edge of the movable cylindrical portion and the back surface of the water sprinkling portion, the elastic seal member is uniaxially compressed in the forward direction of the movable cylindrical portion. Denseness can be enhanced.

  The wall of the movable barrel can be configured as a transparent wall for visualizing the loaded additive module. The water sprayer can also be configured as a transparent wall for visualizing the loaded additive module. Thus, the consumption condition can be confirmed without removing the loaded additive module one by one, and the replacement time of the additive module can be accurately grasped.

  A module receiving portion can be formed to project rearward at a lower part of the outer peripheral edge of the back surface of the water spray portion. When the additive module is inserted from above into the open space with the movable cylindrical portion retracted, the additive module is supported from below by the module receiving portion, so when moving the movable cylindrical portion to the sealing position There is no risk of accidentally dropping the additive module. In addition, when the module receiving portion is integrated with the water sprinkling portion in a positional relationship to be accommodated in the water flow opening of the movable cylindrical portion when the movable cylindrical portion moves to the sealing position, the module receiving portion during use In addition to being exposed to the outside, it can prevent the failure that the module receiving part is damaged by impact, and also the appearance of the shower head is improved.

  Further, the sprinkling portion coupling portion can couple the sprinkling portion to both side surfaces of the main body portion through a pair of arm portions. This allows the space between the arms to be utilized as an additive module insertion opening for the open space. At this time, the pair of arms is a main portion of the main body, a water passing position where the water sprinkling portion faces the front of the main opening of the main portion, and a retracted position where the water sprinkling portion retracts upward from the water passing position. If it is configured to be pivotally coupled between each other, the sprinkling portion can be splashed upward together with the arm portion in a state in which the movable cylindrical portion is retracted, and when the used additive module remains or the like, It becomes easy to carry out maintenance etc. of the inside of a movable cylinder part, such as taking out.

  Next, as a mechanism for advancing and retracting the movable cylindrical portion, a rotational operation portion rotatably attached along the periphery of the main opening of the main portion of the main body, and an operation displacement of the rotational operation portion relative to the movable cylindrical portion in the axial direction What is provided with a conversion transmission mechanism that converts and transmits to forward and backward displacement of the vehicle can be adopted. Since the rotary operation unit along the opening edge of the main part of the main body can be operated in the form of holding the main part of the main body with one hand and holding it stably, it has excellent operability when loading the additive module and Because it can also be used, the overall appearance of the shower head is improved.

  The rotation operation portion may be configured to include an operation cylindrical member coaxially disposed outside the movable cylindrical portion and having an axial guide groove formed in the inner circumferential surface. Further, the conversion transmission mechanism is formed between the operation cylinder member and the movable cylinder portion so as to have a cylindrical shape with an open front end side and a cam member having a spiral cam slit penetrating the peripheral wall portion. A cam follower is provided on the rear end portion of the outer peripheral surface of the movable cylindrical portion so as to project through the cam slit of the cam member and the tip end slidably engages with the guide groove along the guide groove. It can be configured. The cam follower slidingly engaged with the guide groove moves along the spiral trajectory of the cam slit as the rotation operation portion is rotated about the axis by the operation flange portion, and the movable cylindrical portion integral with the cam follower is Advances and retracts in the axial direction while rotating with the rotation operation unit. The rotational operation portion applies an operation force along the main opening peripheral edge of the main body main portion opened widely corresponding to the water sprinkling portion, so that a large rotational torque can be secured, and this can be used for advancing and retracting displacement of the movable cylindrical portion via the cam mechanism. By the conversion, it is possible to secure a large tension force toward the water sprinkling portion of the movable cylindrical portion, and the liquid tightness is further improved.

  Further, the main body portion forms a water passage and a cylindrical main wall portion having a main opening formed on the front end surface, and an annular accommodation groove outside the main wall portion on the outer side of the main wall portion While, it can be configured to have the subwall integrated with the main wall and the groove bottom at the base end side, and the operation cylinder member, the cam member and the movable cylinder are disposed in the accommodation groove be able to. By disposing the operation cylindrical member and the cam member, which form the main part of the conversion transmission mechanism, in the accommodation groove, the cam sliding portion is protected by the sub wall portion, and it becomes difficult to cause a problem in which foreign matter or the like is caught. Moreover, the designability is also improved by making the sub-wall part the appearance forming surface of the main part of the main body.

  In this case, the front end sides of the operation cylindrical member and the cam member are protruded from the front end surface of the sub wall portion, and the front end side outer peripheral edge portion of the operation cylinder member is an operation flange portion projecting to the front end surface side of the sub wall portion. Thus, the operability of the operation cylinder member is improved. At this time, by forming the outer peripheral surface of the operation flange portion so as to be continuous with the outer peripheral surface of the sub wall portion, the sense of unity on the appearance of the both can be increased, and the design can be enhanced.

  The opening peripheral edge portion of the front end face of the movable cylindrical portion can be brought into contact with the back surface of the water spray portion through the first elastic seal ring in the circumferential direction. Then, by setting the seal position of the movable cylindrical portion so that the amount of compressive deformation necessary for securing the liquid tightness is generated in the first elastic seal ring between the back surface of the water spray portion, the liquid tightness of both is improved. At this time, if a cam stopper section for holding the cam follower in the sealing position is formed at the front end of the cam slit of the cam member, the liquid tight contact between the movable cylindrical section and the sprinkling section can be maintained more stably. be able to.

  In the above configuration, the front end portion of the movable tubular portion can be engaged with the annular fitting groove formed along the rear surface peripheral edge of the water spray portion at the sealing position, and the first elastic seal ring It can be arranged at the bottom of the fitting groove. As a result, the contact position of the movable cylindrical portion with the back surface of the water sprinkling portion can be regulated by the fitting groove, and liquid tightness can be stably maintained even if the movable cylindrical portion is repeatedly advanced and retracted. Furthermore, by arranging the first elastic seal ring at the bottom of the fitting groove, it is possible to prevent the first elastic seal ring that is compressively deformed from protruding out of the annular front end face of the movable cylindrical portion, in the circumferential direction A uniform liquid-tight state can be realized across the line. At this time, if the outer peripheral edge and the inner peripheral edge of the crushed and deformed first elastic seal ring abut on the inner and outer peripheral side surfaces of the fitting groove, the liquid tightness can be further enhanced.

  Further, a peripheral side main body side flange portion projecting outward is formed on the front end side of the outer peripheral surface of the main body main portion, and a movable cylindrical side flange portion projecting inward on the rear end side of the inner peripheral surface of the movable cylindrical portion It is also possible that the main body side flange portion and the movable cylindrical portion side flange portion are in fluid tight contact via the second elastic seal ring by moving the movable cylindrical portion to the sealing position. it can. In this case, the fluid-tightness on the rear end side of the movable cylindrical portion is also significantly improved by the second elastic seal ring.

  Next, the functional shower head according to the present invention is provided with a handle portion in which the front end side is integrated in a communication form with the water inlet of the main body of the main body and the other end is a hose connection portion having a hot water inlet. be able to. Then, a screw member is disposed in the flow section in the handle portion, and a micro bubble generating portion is provided to reduce and deposit micro bubbles by the cavitation effect based on the acceleration of the water flow when passing the screw valley of the screw member. Can. The water flow in which fine bubbles are generated due to the cavitation effect improves the permeability to the skin etc., and the absorbability of the additive dissolved in the water flow is enhanced. In particular, when the additive is a solid foaming agent that generates carbon dioxide gas, the absorbability of the carbonic acid component generated by the dissolution to the skin is improved, and the blood circulation promoting effect peculiar to carbonic acid can be remarkably enhanced. Further, by being incorporated in the handle portion on the upstream side of the shower head main body to which the solid foaming agent is loaded as the additive module, re-bubble formation of the dissolved carbon dioxide gas due to the pressure reduction effect due to cavitation is suppressed, and carbon dioxide gas It is possible to prevent the concentration of

  The present invention is also an additive module used by loading the functional shower head according to the present invention, wherein the additive that dissolves in contact with water is contained inside a water resistant shell made of a polymeric material. Also provided is an additive module which is filled and in which elution holes for the additive are formed in the shell. By loading the additive module into the showerhead main body having a large internal volume, the loading amount of the additive can be increased, but the water passing through the additive module is subjected to strong agitation and fluctuation in the showerhead main body, In the case of compression moldings of additives and the like, the dissolution rate is too high, and the problem of deterioration of sustainability becomes large. Therefore, as described above, by filling the additive inside the water-resistant shell and forming elution holes in the shell, it is possible to control the elution of the additive, and maintain the durability. It can be maintained for a long time.

  When the water resistant shell is configured as a transparent polymer material, when the wall or the water spray portion of the movable cylindrical portion is configured as a transparent polymer material, the consumption of the additive in the water resistant shell can be easily visually observed. It can be confirmed.

  In addition, protrusions can be dispersedly formed on the entire surface of the water resistant shell, and elution holes can be formed in concave regions between adjacent protrusions. When the additive module is pressed against the water sprayer side in the shower head main body, the projections are formed on the water-resistant shell, and the openings of the elution holes are watered in such a manner that the openings serve as the spacers. It faces the back of the part and does not prevent the penetration of water into the elution holes.

  As described above, the additive can be a solid foaming agent which dissolves in water to foam and generate carbon dioxide gas. And, when the accumulated water flow to the functional shower head to which the additive module is loaded is 5 L or more and 20 L or less, the shell is consumed so that the solid foaming agent filled in the shell is consumed without excess and deficiency. It is possible to set the number of the elution holes of the additive formed in the body and the opening diameter. This makes it possible to uniformly elute the solid blowing agent during the water passage period of 5 L to 20 L used in one shower, and it becomes difficult to cause the problem of insufficient carbon dioxide gas concentration at the end of the shower use period. The additive module can be used up once. In addition, as an additive other than a solid foaming agent, a liquid flavor can be filled, and an aroma effect shower can be easily enjoyed.

  The details of the operation and effects of the present invention have already been described in the section "Means for Solving the Problems", and therefore will not be repeated here.

  BRIEF DESCRIPTION OF THE DRAWINGS The front view and side view which show one Embodiment of the functional shower head of this invention.   FIG. 2 is a side cross-sectional view showing the main part of the shower head main body of FIG. 1;   Sectional drawing which shows 1st embodiment of the additive module of this invention.   Sectional drawing which similarly shows 2nd embodiment.   The front view, the side view, and side sectional drawing of the sprinkling part of the functional shower head of FIG.   Similarly, a front view, a side view and a side sectional view of the cam member.   Similarly, a front view, a side view and a side sectional view of the operation cylinder member (rotation operation unit).   Similarly, a front view, a side view and a side sectional view of the movable cylinder portion.   Explanatory drawing of the additive module loading process in the functional shower head of FIG.   Operation explanatory drawing of a rotation operation part, a conversion transmission mechanism, and a movable cylinder part.   FIG. 9 is an explanatory view continued from FIG. 8;   Explanatory drawing which shows an example of a micro bubble generation part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.
FIG. 1 is a front view and a side view showing the appearance of a functional shower head 1 according to an embodiment of the present invention, which has a shower head body 2 in which a handle portion 20 is integrated. The additive module 100 is loaded in the shower head body 2, and a shower hose is connected to a hose connection 20 t formed at the lower end of the handle portion 20 so as to allow water to flow, whereby a shower water containing the additive dissolved therein is obtained. You can get it. Although the type of the additive is not limited, in the present embodiment, a solid foaming agent which is dissolved in water to generate carbon dioxide gas is employed. The composition of the solid blowing agent is well known and mixtures of alkali metal bicarbonates (eg sodium bicarbonate to potassium bicarbonate) and solid carboxylic acids (eg fumaric acid) can be used.

  FIG. 2 is a side sectional view showing the internal structure of the shower head body 2 and will be described in more detail in conjunction with FIG. The shower head main body 2 is configured to include a main body 3, a water sprinkling portion 9, a water sprinkling portion coupling portion 11 (see FIG. 1), and a movable cylindrical portion 12. As shown in FIG. 2, the main body portion 3 has a water passage 5 having a water inlet 4 at one end and a main opening 6 having a larger opening size than the water inlet 4 at the other end. The water sprinkling portion 9 is disposed in front of the main opening 6 of the main body portion 3 so as to form an open gap 7 of a predetermined distance, and a plurality of water jet holes 8 are dispersedly formed. In addition, the water sprinkling portion bonding portion 11 mainly forms the water sprinkling portion 9 while forming the additive module insertion opening 10 for inserting the additive module 100 in the direction intersecting the water flow direction with respect to the open space 7 described above. It plays a role of binding to part 3.

  The movable cylindrical portion 12 is formed in a cylindrical shape whose front end side is a water outlet 12 a and whose rear end side is in communication with the water passage 5 of the main portion 3 of the main body at the main opening 6. The movable cylindrical portion 12 is disposed between a sealing position SP for pressing the peripheral edge of the opening of the front end face in a liquid tight manner against the back surface of the water sprinkling portion 9 and a retracted position RS where the front end face is separated from the back surface of the water spouting portion 9. The outer peripheral surface of the main body portion 3 can be advanced and retracted in the direction of the axis O. Each of these parts is obtained by injection molding of a plastic material such as polycarbonate resin. The functional shower head 1 moves the movable tubular portion 12 to the sealing position SP while inserting the additive module 100 into the open space 7 in a state where the movable tubular portion 12 is retracted to the retracted position RS. It becomes possible to load 100 into the movable cylindrical portion 12.

  In the present embodiment, the wall portion of the movable cylindrical portion 12 and the water sprinkling portion 9 are both transparent wall portions for visually recognizing the loaded additive module 100. However, it is also possible to constitute any of the movable cylindrical portion 12 to the water spray portion 9 (for example, the water spray portion 9) with an opaque material. In the present embodiment, the main body portion 3 and the rotary operation portion 7 are configured to be opaque (in particular, the main body portion 3 having a large thickness portion is made opaque so as to cause air bubble entrainment at the time of injection molding). Easy to conceal and contribute to the improvement of manufacturing yield).

  In the present embodiment, the water sprinkling portion coupling portion 11 is a pair of arm portions 9 a. As shown in FIG. 11, the arm portion 9 a has a water discharge position FP where the water sprinkling portion 9 faces the front of the main opening 6 of the main body portion 3 as shown in FIG. The water sprinkling portion 9 is coupled so as to be pivotable from the water passing position FP to a retracted position UP which is retracted upward. As shown in FIG. 5, the arm 9a is integrally formed with the water sprayer 9 and is formed in a plate shape extending rearward from the outer peripheral edge of the water sprayer 9, and as shown in FIG. It is connected to the side of the main body 3 by means of a known mating pivot connection 9x. An arc shaped slit 9s corresponding to the turning locus is formed on the rear end side of the arm 9a, while a turning position restricting portion 3b protruding from the surface of the main body 3 is engaged inward. The turning limit positions respectively corresponding to the water passing position FP shown on the right of FIG. 11 and the retracted position UP shown on the left of the figure are defined. In addition, it is also possible to set it as the structure which abolishes the fitting-type turning joint part 9x, and fixedly joins with the main-body main part 2 the rear-end part of the arm part 9a.

  Next, a module receiving portion 15 is formed to project rearward at a lower portion of the outer peripheral edge of the back surface of the water spray portion 9. As shown on the right of FIG. 11, when the movable tubular portion 12 is retracted to the retracted position RS and the additive module 100 is inserted from above into the open space 7 in that state, the additive module 100 is inserted into the module receiving portion 15. Supported from below. In the present embodiment, the module receiving portion 15 has an arc-shaped cross section, and the movable portion 12 is accommodated in the water flow opening when moved to the sealing position SP (FIG. 2). The base end is integrated with the back surface by injection molding.

  The movable cylindrical portion 12 may be advanced and retracted directly by a manual operation along the axis O, but in the present embodiment, the peripheral edge of the main opening 6 of the main body portion 3 in order to obtain stronger liquid tightness. The rotation operation unit 17 is rotatable along the axis, and the operation displacement of the rotation operation unit 17 is transmitted to the movable cylindrical portion 12 by the conversion transmission mechanism 18 while being converted into an advancing / retracting displacement in the direction of the axis O There is. The rotation operation portion 17 is coaxially disposed on the outer side of the movable cylindrical portion 12 and, as shown in FIG. 7, an operation cylindrical member (hereinafter referred to as an operation) in which a guide groove 17a in the axis O direction is formed It is formed as a cylinder member 17). In the present embodiment, three guide grooves 17a are formed at equal angular intervals around the axis. Further, at the front end side outer peripheral edge portion of the operation cylindrical member 17, an operation flange portion 17f having a conical surface-like peripheral side surface whose diameter increases toward the rear in the axial direction is formed.

  Further, the conversion transmission mechanism 18 is configured to include the cam member 19 shown in FIG. 6 and the cam follower 12 a protruding from the rear end of the outer peripheral surface of the movable cylindrical portion 12 shown in FIG. 8. The cam member 19 is formed in a cylindrical shape whose front end side is open so as to be interposed between the operation cylindrical member 17 and the movable cylindrical portion 12 as shown in FIG. 2, and as shown in FIG. The cam slit 19s penetrating through is formed in a spiral shape. Further, as shown in FIG. 10, the cam follower 25 of the movable cylindrical portion 12 penetrates the cam slit 19s of the cam member 19, and the tip thereof slides along the guide groove 17a with respect to the guide groove 17a of the operation cylindrical member 17. It is possible to engage. The cam follower 12a slidingly engaged with the guide groove 17a moves along the spiral trajectory of the cam slit 19s as the rotary operation portion 17 is rotated about the axis, and the movable cylindrical portion 12 integral with the cam follower 12a Is moved forward and backward in the axial direction while rotating with the rotation operation unit 17. The cam slit 19s and the cam follower 12a are also provided in three sets corresponding to the guide groove 17a.

  Next, as shown in FIG. 2, the main body portion 3 forms a water passage 5 and a cylindrical main wall portion 3m having a main opening 6 formed on the front end face, and an annular ring outside the main wall portion 3m. The main wall 3m is coaxially disposed via the housing groove 3g, and the main wall 3m is integrally formed on the axial direction base end side via the bottom of the housing groove 3g. The operating cylindrical member 17 and the cam member 19 are disposed in the housing groove 3g, and the movable cylindrical portion 12 advanced and retracted by the rotation operation of the operating cylindrical member 17 is housed in the housing groove 3g at the retracted position RS. . Further, the front end sides of the operation cylindrical member 17 and the cam member 19 project from the front end face of the sub wall 3s, and the operation flange 17f projects to the front end face side of the sub wall 3s and its conical surface periphery The side surface is adjusted in inclination so as to be continuous with the side surface of the sub wall 3s, so that the appearance and rotational operability are improved. Further, the cam member 19 is fixed in such a manner as to press fit the convex portion 19b protruding from the rear end face into the concave portion formed at the bottom of the housing groove 3g.

  Further, the opening peripheral edge portion of the front end face of the movable cylindrical portion 12 is in contact with the back surface of the water spray portion 9 via a first elastic seal ring 25 (for example, an O-ring made of rubber) in the circumferential direction. The seal position SP of the movable cylindrical portion 12 is determined such that a compression deformation amount necessary for securing the liquid tightness is generated in the first elastic seal ring 25 between it and the rear surface of the water spray portion 9. At the front end of the cam slit 19s of the cam member 19 shown in FIG. 6, as shown in FIG. 9, a cam stopper section 19p for holding the cam follower 12a at the seal position SP is a horizontal section along the rotational operation circumferential direction. It is formed. Further, a cam follower insertion passage 19a opened at the end surface of the cam member 19 is branched at the start position of the cam stopper section 19p. On the other hand, a backward holding section 19q for holding the cam follower 12a at the retracted position RS is similarly formed at the rear end of the cam slit 19s.

  Further, as shown in FIG. 2, the front end portion of the movable cylindrical portion 12 is engaged with an annular fitting groove 9 g formed along the back surface peripheral edge of the water spray portion 9 at the sealing position SP. The first elastic seal ring 25 is disposed at the bottom of the fitting groove 9g. The fitting groove 9g is formed in a thick frame portion 9d formed along the outer periphery of the circular water sprinkling portion 9, and the front end portion of the arm portion 9a is integrated with the frame portion 9d.

  On the other hand, on the front end side of the outer peripheral surface of the main body portion 3, a peripheral side main body side flange portion 3f projecting outward is formed, and on the rear end side of the inner peripheral surface of the movable cylindrical portion 12 a movable cylinder projecting inward The part side flange part 12f is formed. Then, in the state of being positioned at the seal position SP, the second elastic seal ring 26 is interposed between the movable cylindrical portion side flange portion 12f and the main body side flange portion 3f, and the liquid tightness of both is secured. It is supposed to be. The movable tubular portion side flange portion 12 f is formed as a separate resin-made fixture which is screwed to the front end portion of the main body portion 3 via the elastic seal ring 41 in this embodiment, but it is stainless steel etc. As a metal part of the above, it may be integrated with the front end of the main body 3 by insert molding.

  Next, a handle portion 20 is connected to the main body portion 3 with the front end side integrated with the water inlet 4 in communication form and the other end side being a hose connection portion 20t having the hot water inlet 4 . As shown in FIG. 1, in the present embodiment, the handle portion 20 has a first portion 20a constituting the front end side integrated with the main body portion, and the front end of the second portion 20b is fitted to the rear end of the first portion 20a A hose connection portion 20t which is connected by screwing and which is a screw joint (for example, a G1 / 2 male screw joint) is formed at the rear end of the second portion 20b.

  FIG. 3 is an enlarged view of the additive module 100. In the additive module 100, a powdery solid foaming agent (additive) 102 is filled in a water resistant shell 101 made of a transparent polymer material such as polypropylene resin or polyethylene resin, and the water resistant shell 101 is A plurality of elution holes 103 are formed. The water-resistant shell 101 of the additive module 100 of FIG. 3 is formed in a spherical shape having a flat surface, and the elution holes 103 are formed in parallel with the thickness direction. It is also possible to form elution holes inclined to the thickness direction in order to increase the Further, as in the additive module 100 M shown in FIG. 4, a large number of projections 104 are dispersedly formed on the entire surface of the water resistant shell 101, and elution holes 103 are formed in the concave region between the adjacent projections 104. May be The water-resistant shell 101 may be formed to have a wall thickness as thick as 0.3 mm or more and 1 mm or less so as to maintain a spherical prototype when the additive 102 inside is consumed, and along with the consumption of the additive 102 A flexible resin film having a wall thickness of 0.05 mm or more and less than 0.3 mm (desirably, 0.07 mm or more and 0.15 mm or less) can also be used to cause crushing deformation. In the latter case, when the movable tubular portion 12 to the water spray portion 9 are made of a transparent resin material and the inside can be seen through as described above, the remaining amount of the additive 102 is more depending on the degree of crushing deformation of the module 100. There is an advantage of being easy to grasp.

In the case where the additive 102 is a solid foaming agent, for example, the cumulative flow rate used to take a shower at one time is usually 5 L or more and 20 L or less. At this time, the solid foam filled in the water resistant shell 101 The number of elution holes 103 of the additive 102 formed in the water-resistant shell 101 and the opening diameter may be determined so that the agent is dissolved and consumed without excess or deficiency. For example, the carbonated tablets disclosed in Patent Documents 2 to 3 are formed by compressing and forming a solid foaming agent with a water-soluble binder in the same manner as a well-known solid bathing agent, and a powder of about 5 to 10 g which can be mounted on a shower head In the case of the amount, it dissolves and disappears completely by passing 2 to 3 L of water, and there is a problem that carbon dioxide gas generation does not continue until the end by using one shower. However, according to the configuration of the additive module 100 having the above-described configuration, the solid foaming agent 102 filled in the water resistant shell 101 is in contact with flowing water only through the elution holes 103, so that the dissolution is moderate. The carbon dioxide gas generation state can be maintained throughout the entire shower time by adjusting the number of and the opening diameter. In the case of a powder amount of about 8 g to 16 g, adjust the number of the elution holes 103 so that the opening diameter is 0.05 mm to 0.3 mm and the total opening area is about 0.04 mm ^{2 to} 0.1 mm ^2. Is desirable.

  Next, in the present embodiment, a fine air bubble generating portion 610 is provided in the handle portion 20. The micro-bubble generating unit 610 arranges the screw member 613 in the flow section, and depressurizes and deposits the micro-bubble by the cavitation effect based on the acceleration of the water flow when passing through the screw valley of the screw member 613. It is disclosed in Document 6. A plurality of throttle holes 612 penetrating in the axial direction with respect to the resin main body 611 are formed in the main surface of the main body 611, and screw portions 613 are integrated by insert molding in the cross-sectional diameter direction. The details of the structure are as disclosed in Patent Document 6, and thus the description thereof is omitted.

Hereinafter, the usage method of the functional shower head 1 and its effect are demonstrated.
First, as shown in FIG. 9, the operation flange 17 f is rotated to retract the movable cylindrical portion 12. In the example of FIG. 10, the cam follower 12a is held by the cam stopper section 19p when the movable cylindrical portion 12 moves forward and is in the sealing position as shown at the right end, but along with rotating the operation flange 17f counterclockwise. The cam follower 12a escapes from the cam stopper section 19p, moves to the middle portion of the inclined cam slit 19s, and travels to the reverse holding section 19q. As a result, the movable cylindrical portion 12 integral with the cam follower 12a is rotated backward together with the rotation operation portion 17, and is retreated and displaced to the state of the center and the left end in FIG.

  Thus, the movable cylinder 12 moves to the retracted position RS as shown in the left of FIG. 10, and as shown in the right of FIG. 11, the open space 7 between the water sprayer 9 and the main opening 6 can be received by the additive module 100. Do. When the additive module 100 is inserted from the upper side here, the module receiving portion 15 receives the module 100 from the lower side, and it is possible to prevent a drop or the like without supporting the module 100 with a finger. Then, when the operation flange 17f is rotated in the reverse direction of FIG. 9, the movable cylindrical portion 12 advances from the left end of FIG. 10 so as to be in the center and right end state, and as shown in FIG. The additive module 100 on the module receiving portion 15 is loaded into the movable cylindrical portion 12 while being fitted into the fitting groove 9 g on the back surface of the movable portion 12. Then, as the cam follower 12a enters into the cam stopper section 19p, the first elastic seal ring 25 in the fitting groove 9g receives the cam biasing force between the frame 9d of the water sprinkling portion 9 and the front end face of the movable cylindrical portion 12. It is strongly compressed in between to ensure liquid tightness. Further, the second elastic seal ring 26 between the movable cylindrical portion side flange portion 12f and the main body side flange portion 3f is similarly compressed, and liquid tightness is secured.

  In this state, when water is supplied by a shower hose (not shown) connected to the rear end of the handle portion 20 of FIG. 2, the water passes through the handle portion 20 and the fine bubble generating portion 610, and the inside of the main body 3 of FIG. Flows into the movable cylindrical portion 12 through the water passage 5 of FIG. Then, the additive module 100 loaded as described above is agitated and shaken in the movable cylindrical portion 12, and the solid foaming agent 102 inside is eluted to become carbonated water, and is sprayed from the water spray portion 9. When all the solid foaming agent 102 is eluted and the use of the shower is finished, the movable cylindrical portion 12 is retreated again, and the sprinkling portion 9 is bounced upward as shown in FIG. Take out the additive module.

  According to the functional shower head 1 of FIG. 1, as shown in FIG. 10, the additive module 100 is inserted into the open space 7 with the movable cylindrical portion 12 retracted, and the movable cylindrical portion 12 is sealed as shown in FIG. Since the additive module 100 is loaded into the movable cylindrical portion 12 by advancing to the position SP, the loading operation of the additive module 100 is extremely simple. In addition, since the water sprinkling portion 9 and the movable cylindrical portion 12 involved in the loading operation are not separated from the main body portion 3, there is no fear of loss or drop damage. Then, the movable cylindrical portion 12 moved to the seal position SP in FIG. 2 has the opening peripheral edge portion of the front end face pressed against the back surface of the water sprinkling portion 9 in the axial direction and the movable cylindrical portion 12 and the water spouting portion 9 The liquid tightness between the above and the other can be well maintained, and concerns such as water leaks are greatly reduced.

  Further, since the rotary operation unit 17 along the opening peripheral edge of the main body 3 can be operated in a form of holding the main body 3 with one hand and stably holding it, the operability at the loading operation of the additive module 100 is excellent and the main body Since the opening outer peripheral surface decoration part of the main part 3 can also be used, the appearance of the entire shower head is improved. Then, since the operation force is applied to the rotation operation portion 17 along the peripheral edge of the main opening 6 of the main body portion 3 opened widely corresponding to the sprinkling portion 9, a large rotation torque can be secured, which causes the cam of the mechanism to As the movable cylindrical portion 12 is converted to the forward and backward displacement of the movable cylindrical portion 12, a large tension force toward the water sprinkling portion 9 of the movable cylindrical portion 12 can be secured, and the first elastic seal ring 25 and the second seal ring 26 also axially The liquid-tightness is greatly improved, because it is crushed and deformed uniformly and reliably.

  Further, since the front end portion of the movable cylindrical portion 12 engages with the annular fitting groove 9g along the back surface peripheral edge of the water sprinkling portion 9, the first elastic seal ring 25 is disposed at the bottom of the fitting groove 9g. The contact position of the movable cylindrical portion 12 with the back surface of the water sprinkling portion 9 can be regulated by the fitting groove 9g, and liquid tightness can be stably maintained even if the movable cylindrical portion 12 is repeatedly advanced and retracted. Furthermore, by arranging the first elastic seal ring 25 at the bottom of the fitting groove 9g, it is possible to prevent the first elastic seal ring 25 that is compressively deformed from protruding out of the annular front end surface of the movable cylindrical portion 12. The uniform liquid tightness can be realized in the circumferential direction. When the outer peripheral edge and the inner peripheral edge of the crushed and deformed first elastic seal ring 25 are brought into contact with the inner and outer peripheral side surfaces of the fitting groove 9g, the liquid tightness can be further enhanced.

  Further, in the handle portion 20, a fine bubble generating portion 610 shown in FIG. 12 is provided. As a result, the fine bubbles can be depressurized and deposited by the cavitation effect based on the acceleration of the water flow when passing through the thread valley of the screw member 613. The water flow in which fine bubbles are generated due to the cavitation effect improves the permeability to the skin and the like, and the absorbability of the additive 102 dissolved in the water flow is enhanced. In addition, the absorbability of water in which fine bubbles are formed to the skin is improved by the cavitation effect, so the carbonic acid component generated from the solid foaming agent which is the additive and dissolved in the water flow is also to the capillary through the skin. Is promoted. As a result, even with a small amount of solid foaming agent that can be loaded into the shower head, the blood circulation promoting effect unique to carbonation can be remarkably enhanced. In addition, the micro air bubble generating portion 610 is incorporated in the handle portion 20 on the upstream side of the shower head main body 2 in which the additive module 100 (solid foaming agent) is loaded, so that the dissolved carbonic acid is reactivated by the pressure reduction effect due to cavitation. Aeration is suppressed, and a decrease in the dissolved concentration of carbon dioxide gas can be prevented. Of course, the fine bubble generating portion 610 can be omitted.

  In addition, since the shower head main body 2 having a large internal volume is used as a loading unit of the additive module 100 (100M) of FIGS. 3 to 4, the loading amount of the additive 102 into the shower head main body 2 is increased. Is ready. Then, as shown in FIG. 3, the additive 102 is filled in the inside of the water resistant shell 101, and the elution holes 103 are formed in the water resistant shell 101 to release the additive 102 slowly. Will be able to maintain sustainability for a long time. Also, as shown in FIG. 4, if the projections 104 are dispersedly formed on the entire surface of the water resistant shell 101 and the elution holes 103 are formed in the concave region between the adjacent projections 104, the projections 104 can be spacers. As a result, the opening of the elution hole 103 faces the back surface of the water spray portion 9 in the form of a gap, and the problem that the permeation of water into the elution hole 103 can be prevented can also be prevented.

  As mentioned above, although embodiment of this invention was described, it is an illustration to the last, and this invention is not limited to this. For example, the additive is not limited to a solid foaming agent, and may be a liquid flavor (for example, a water-soluble flavor). Furthermore, chlorine removing agents such as vitamin C (L-ascorbic acid) may be used.

DESCRIPTION OF SYMBOLS 1 functional shower head 2 shower head main body 3 main part 3 m main wall 3 g housing groove 3 s sub wall 3 f main body side flange 4 water inlet 5 water passage 6 main opening 7 open gap 8 water jet 9 water spout 9 g fit Joint groove 10 Additive module insertion opening 11 Water sprinkling portion coupling portion 12 movable cylindrical portion 12a cam follower 12f movable cylindrical portion side flange portion 15 module receiving portion 17 operation cylindrical member (rotation operation portion)
17a guide groove 17f operation flange portion 18 conversion transmission mechanism 19 cam member 19s cam slit 19p cam stopper section 20 handle portion 20t hose connection portion 25 first elastic seal ring 26 second elastic seal ring 100 additive module 101 water resistant shell 102 Additive 103 Elution hole 104 Protrusion 610 Fine air bubble generation part 613 Screw member SP Seal position RS Retraction position FP Water flow position UP Retraction position

Claims (19)

What is claimed is: 1. A functional shower head, wherein an additive module for eluting an additive into a water flow is loaded into a shower head body to obtain a shower water flow in which the additive is dissolved,
A main body having a water passage having a water inlet at one end and a main opening having a larger opening size than the water inlet at the other end;
A water sprinkling portion disposed so as to form an open gap of a predetermined distance in front of the main opening of the main body portion, and a plurality of water jet holes are dispersedly formed;
A water sprinkling portion coupling portion coupling the water sprinkling portion to the main body main portion by forming an additive module insertion opening for inserting the additive module in a direction intersecting the water flow direction with respect to the open space;
The front end side is a water outlet, and the rear end is formed in a cylindrical shape communicating with the water passage of the main body at the main opening, and the opening peripheral edge portion of the front end is press-contacted to the back side of the water discharger. And a movable cylindrical portion provided on the outer peripheral surface of the main portion of the main body so as to be capable of advancing and retracting in the axial direction between a sealing position to be moved and a retracted position where the front end surface is separated from the back surface of the water sprinkling portion ,
The additive module is loaded into the movable cylindrical portion by moving the movable cylindrical portion to the seal position while inserting the additive module into the open gap in a state where the movable cylindrical portion is retracted to the retracted position. A functional shower head characterized by having it.   The functional shower head according to claim 1, wherein a wall portion of the movable tubular portion is a transparent wall portion for visually recognizing the loaded additive module.   The functional shower head according to claim 1 or 2, wherein the water sprinkling portion is a transparent wall portion for visually recognizing the loaded additive module.   The additive is formed by inserting the additive module from above with respect to the open space in a state in which a module receiving portion is formed to project rearward at the lower part of the outer peripheral edge of the back surface of the water sprinkling portion and the movable cylindrical portion is retracted. The functional shower head according to any one of claims 1 to 3, wherein the module is supported from below by the module receiving portion.   The water sprinkling portion joint portion has the water sprinkling portion on both sides of the main body portion, and the water sprinkling portion faces the front of the main opening of the main body main portion, and the water sprinkling portion from the water passing position The functional shower head according to any one of claims 1 to 4, further comprising a pair of arm portions pivotally coupled between the retractable position and the retracted position.   A rotary operation unit rotatably mounted along the periphery of the main opening of the main body portion, and a conversion for converting an operation displacement of the rotation operation unit to an axial displacement and an axial displacement with respect to the movable cylindrical portion The functional shower head according to any one of claims 1 to 5, further comprising: a transmission mechanism.   The rotation operation unit includes an operation cylinder member coaxially disposed outside the movable cylinder portion and having an axial guide groove formed on an inner peripheral surface, and the conversion transmission mechanism includes the operation cylinder member and the operation cylinder member. A cam member formed in a cylindrical shape having an open front end side with a movable cylindrical portion and having a helical cam slit penetrating the peripheral wall, and an outer peripheral surface rear end of the movable cylindrical portion And a cam follower which is slidably mounted on the guide groove along the guide groove through the cam slit of the cam member, and the rotation operation portion is rotated about its axis. As the operation is performed, the cam follower slidingly engaged with the guide groove moves along the spiral trajectory of the cam slit, and the movable cylindrical portion integral with the cam follower rotates along with the rotation operation portion along the axis People Functional shower head according to claim 6, wherein as to advance and retreat in.   The main body portion forms the water flow path and a cylindrical main wall portion having the main opening formed on the front end surface, and an annular accommodation groove formed on the outer side of the main wall portion on the proximal end side The main wall portion and the sub wall portion integrated through the groove bottom portion are provided, and the operation cylindrical member, the cam member, and the movable cylindrical portion are disposed in the accommodation groove. Functional shower head.   A front end side of the operation cylindrical member and the cam member protrudes from a front end face of the sub wall portion, and an operation flange portion having a front end side outer peripheral edge portion of the operation cylindrical member overhanging on a front end face side of the sub wall portion; The functional shower head according to claim 8. The opening peripheral edge portion of the front end face of the movable cylindrical portion is in contact with the back surface of the water sprinkling portion via a first elastic seal ring in the circumferential direction,
The seal position of the movable cylindrical portion is determined so that the amount of compressive deformation necessary for securing liquid tightness is generated in the first elastic seal ring between the back surface of the water spray portion and the cam slit of the cam member The functional shower head according to any one of claims 7 to 9, wherein a cam stopper section for holding the cam follower in the sealing position is formed at the front end of the head.   The front end portion of the movable cylindrical portion is adapted to engage an annular fitting groove formed along the back surface peripheral edge of the water sprinkling portion at the sealing position, and the first elastic seal ring The functional shower head according to claim 10, wherein the functional shower head is disposed at the bottom of the fitting groove.   An outer peripheral surface front end side of the outer peripheral surface of the main body main portion is formed with a peripheral side main body side flange portion projecting outward, and a movable cylindrical portion projecting inward toward the rear end side of the inner peripheral surface of the movable cylindrical portion A side flange portion is formed, and when the movable cylindrical portion moves to the sealing position, the main body side flange portion and the movable cylindrical portion side flange portion are in fluid tight contact with each other through the second elastic seal ring. The functional shower head according to any one of claims 7 to 11.   A handle portion in which a front end side is integrated in a communication form with respect to the water inlet of the main portion of the main body, and a hose connection portion having the hot water inlet at the other end side; The micro-bubble generating portion according to any one of claims 1 to 12, wherein the micro-bubble generating portion is disposed to cause micro-bubbles to be depressurized and deposited by the cavitation effect based on the water flow being accelerated when passing through the screw valley of the screw member. Functional shower head according to the item.   The additive module according to any one of claims 1 to 13, which is used by being loaded into a functional shower head and dissolved in contact with water inside a water resistant shell made of a polymer material. An additive module characterized in that the additive shell is filled, and elution holes of the additive are formed in the water resistant shell.   15. The additive module of claim 14, wherein the water resistant shell is configured as a transparent polymeric material.   The additive module according to claim 14 or 15, wherein projections are dispersedly formed on the entire surface of the water resistant shell, and the elution holes are formed in concave regions between adjacent projections.   The additive module according to any one of claims 14 to 16, wherein the additive is a solid foaming agent which is dissolved in water to foam and generate carbon dioxide gas.   The solid foaming agent filled in the water resistant shell is dissolved and consumed without excess when the accumulated water flow to the functional shower head to which the additive module is loaded is 5 L or more and 20 L or less The additive module according to claim 17, wherein the number and the opening diameter of the elution holes of the additive formed in the water resistant shell are determined.   The additive module according to any one of claims 14 to 16, wherein the additive is a liquid flavor.

Images