JP2006150293A - Attachment for mixing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attachment for mixing which can suppress occurrence of variation in concentration of medicament for mixing in raw water even when supply pressure of the raw water changes and which can assure preferable shower flow rate by mixing the raw water with the medicament for mixing while maintaining the concentration within a desired range for a predetermined time. <P>SOLUTION: The attachment for mixing 10 has a raw water main flow passage 21, a branching water channel 16 and a medicament housing chamber 15, the raw water in the raw water main flow passage 21 is made to flow into the medicament housing chamber 15 through the branching water channel 16 and housed medicament for mixing together with the raw water are made to flow into the raw water main flow passage 21 while mixing the flown-in raw water with the medicament for mixing. A cross-sectional area S1 of a 1st radius contraction part 21a immediately behind a downstream side of an inflow passage opening 21b in the raw water main flow passage 21 is smaller than a cross-sectional area S2 of the raw water main flow passage 21 of the inflow passage opening 21b. A flow rate distribution ratio Q2/Q1 between a flow rate Q1 to the 1st radius contraction part 21a of the raw water main flow passage 21 and a flow rate Q2 to the branching water channel 16 is 0.05 to 0.23. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mixing attachment that mixes a mixing medicine with raw water and flows it out together with the raw water, and a medicine spraying device to which the mixing attachment is integrally attached.

  For example, in a spraying device such as a shower device, a chemical such as a bathing agent is added and mixed as a mixing agent to the raw water supplied via a pipe such as a hose, and the raw water can be sprayed from the spraying device together with the mixing agent. An attached attachment is disclosed (for example, see Patent Document 1).

  As shown in FIG. 11, the attachment described in Patent Document 1 includes a double structure composed of an inner cylinder 50 and an outer cylinder 51, and the inside of the inner cylinder 50 is connected to a main water passage 52 of raw water. At the same time, a space between the inner cylinder 50 and the outer cylinder 51 is used as a sub-water passage (medicine storage chamber) 53, and a solidified cosmetic agent eluted by water is sealed inside. And according to the attachment of patent document 1, with respect to the disk-shaped water distribution board 54 provided in the inflow port of the raw | natural water to the chemical | medical agent storage chamber 53, the disk shape arrange | positioned so that it may overlap with this upstream side The control hole 55 can be opened and closed by sliding the control plate 55 relatively through the knob 56.

Further, according to the attachment described in Patent Document 1, the raw water fed from the upstream flow path 58 by the hose has a liquid distribution chamber 60 having an inner diameter larger than that of the hose attachment portion 59 via the hose attachment portion 59. From the liquid distribution chamber 60 and communicates with the main water passage 52 on the inner side of the inner cylinder 50 via the water passage hole 57 when opened, and between the inner cylinder 50 and the outer cylinder 51. Raw water can be distributed and flowed into the storage chamber 53.
Japanese Utility Model Publication No. 6-81389

  On the other hand, for example, when an attachment for mixing medicine is attached to a shower device, the medicine mixed in the shower water is maintained at a predetermined concentration of, for example, about 0.05 to 5.0% by weight, for example, for 10 to 60 seconds. It is preferable that the drug is gradually released for a predetermined period of time, and the drug contained in the drug storage chamber is used up in a desired time without leaving the drug, and the drug can be efficiently used. It is preferable to be able to spray.

  In addition, when the mixing attachment that forms the medicine storage chamber (sub-waterway) and the raw water main flow path is used, the raw water main flow path diameter (main water flow path diameter) is reduced, so that the shower flow rate is reduced compared to general shower equipment. However, there is a problem that the shower flow rate is low (weak) and easy to feel, and the touch surface is inferior. Therefore, when using a mixing attachment that forms a drug storage chamber (sub-waterway) and a raw water main flow path, it is equivalent to a general shower device. It is preferable to ensure a sufficient shower flow rate.

  However, according to the conventional mixing attachment described above, the inlet to the medicine storage chamber 53 through the water passage hole 57 is the inlet to the main water passage 52 in the same plane as the inlet to the main water passage 52. Since the raw water of the flow rate according to the supply pressure from the upstream flow path 58 flows into the medicine storage chamber 53, the raw water flows in the medicine storage chamber 53. A large variation is likely to occur in the concentration of the mixing agent in the raw water of the main water passage 52 after being dissolved or diluted in the raw water. Further, for example, when the amount of the medicine for mixing accommodated in the medicine accommodating chamber is reduced from the start to the end of the shower, the contained medicine for mixing is, for example, 2000 mPa · sec to 30000 mPa · When it has a viscosity of about sec, it becomes difficult to mix the drug in the drug storage chamber with the raw water, and it becomes difficult to maintain the concentration of the mixing drug in the raw water within a desired range.

  In addition, in the case of a mixing attachment in which a medicine storage chamber (sub-waterway) and a raw water main flow path are formed, if the flow rate of raw water flowing through the raw water main flow path is too large, the flow rate distributed to the drug storage chamber is reduced. It was difficult to mix the mixing agent with the raw water while maintaining the concentration of the mixing agent within the desired concentration range for a predetermined time. If the flow rate distributed to the medicine storage chamber (sub-waterway) is too large, the mixing agent is continued for a predetermined time while maintaining the shower flow rate at which the mixing agent flows out together with the shower water at a desired flow rate. It was difficult to release slowly.

  An object of the present invention is to provide a mixing attachment capable of suppressing the variation in the concentration of the mixing agent in the raw water even when the supply pressure of the raw water from the upstream channel changes. The present invention also provides a desired concentration of the drug for mixing in the raw water even when a drug with a high viscosity (for example, about 2000 mPa · sec to about 30,000 mPa · sec) is used, or when the raw water flowing into the drug containing chamber is a low amount of water. To provide a mixing attachment capable of mixing the chemical for mixing with raw water while maintaining a predetermined flow rate while maintaining a desired flow rate while allowing the chemical for mixing to flow out together with the shower water. With the goal.

  The present invention has a raw water main flow channel, a branch water channel, and a drug storage chamber, the raw water of the raw water main flow channel is caused to flow into the drug storage chamber through the branch water channel, and the mixing drug stored in the drug storage chamber A mixing attachment that mixes with the raw water that has flowed in and flows out into the raw water main channel together with the raw water, wherein the inlet of the branch water channel to the drug storage chamber is open in the raw water main channel The cross-sectional area S1 of the first reduced diameter portion immediately after the downstream side of the (inflow passage opening) is smaller than the cross-sectional area S2 of the raw water main flow path of the inflow passage opening, and the first reduced diameter of the raw water main flow path. A mixing attachment having a flow distribution ratio Q2 / Q1 of 0.05 to 0.23 between the flow rate Q1 to the flow channel and the flow rate Q2 to the branch water channel, and a medicine spraying device attached with the mixing attachment as a unit By providing It is those that have achieved the above objects.

  According to the mixing attachment of the present invention and the medicine spraying device to which the mixing attachment is integrally attached, even when the supply pressure of the raw water from the upstream flow path changes due to the cause of the use environment, etc. The variation in the concentration of the drug can be suppressed, and the mixing drug can be mixed into the raw water while maintaining the concentration of the mixing drug in the raw water within a desired range for a predetermined time.

  In addition, according to the shower apparatus to which the mixing attachment of the present invention is integrally attached, the flow rate distribution ratio Q2 / Q1 between the flow rate Q1 to the first reduced diameter portion of the raw water main flow channel and the flow rate Q2 to the branch water channel is 0. By setting the flow rate to 0.05 to 0.23, the flow rate of the shower with respect to the flow rate of a general shower apparatus not using a mixing attachment (for example, 6 L / min to 15 L / min, preferably 8 L / min to 12 L / min) It can be 85 to 100%, preferably 90 to 100%. Thereby, a good shower flow rate is obtained, and the concentration of the mixing agent in the raw water is set to a desired range (about 0.05 to 5.0% by mass), and the desired concentration is set for a predetermined time (about 10 to 60 seconds). ) The mixing chemical can be mixed with raw water while maintaining.

  The mixing attachment 10 according to the first preferred embodiment of the present invention is attached, for example, between a shower device 11 as a spray device and a shower water supply hose 12 as shown in FIG. In the shower water, a chemical such as a bath chemical, a cleaning chemical, a fragrance chemical, and a skin care chemical is added and mixed while flowing down toward the shower device 11 on the downstream side, and the shower water to which these chemicals are added and mixed is used. It was adopted to enable showering and to allow the shower device 11 to be used as a medicine spraying device. That is, the mixing attachment 10 of the first embodiment is made of, for example, a synthetic resin. For example, when the user uses a shower for bathing, a desired amount (see FIG. 2) is stored in the medicine storage chamber 15 (see FIG. 2). Injecting and filling the mixing agent with a use amount of the drug of, for example, 5 to 25 g), as a bathing finish, for example, for about 10 to 60 seconds, shower water mixed with the mixing agent is sprayed on the body, It is used for the purpose of adhering drugs for mixing to the body so that the effects of these drugs can be obtained effectively.

  In addition, according to the first embodiment, the shower head 100 in which the shower device 11 and the mixing attachment 10 are integrated, is preferably 170 to 250 mm long because the mixing attachment 10 has a configuration described later. The diameter in the center portion of the hand-held portion is 25 to 45 mm (the diameter when the circumference of the center portion of the hand-held portion is converted into a diameter) and the weight is 100 to 250 g. As a result, the shower head 100 of the first embodiment has a head size (size) substantially the same as a shower head using a general shower device that does not use a mixing attachment, and is substantially the same as a shower head using a general shower device. An equivalent weight reduction can be achieved.

Furthermore, according to this 1st Embodiment, the chemical | medical agent for injection inject | poured into the chemical | medical agent storage chamber 15 has a high viscosity of 2000-30000 mPa * sec, for example.
In addition, the measurement conditions of the viscosity of the chemical | medical agent for mixing were used apparatus: B type viscometer (product made from Tokyo Seiki), rotor: No. 4 (basic), rotation speed: 12 rpm, measurement time: 60 seconds, measurement temperature: 25 ° C.

  And the attachment 10 for mixing of this 1st Embodiment is shown in FIG. 2 (a), (b), and FIG. 3, the upstream flow path 13 in the shower water supply hose 12, and the shower apparatus 11 The mixing agent is mixed with the raw water flowing in from the upstream channel 13 while mixing the drug stored in the drug storage chamber 15 in a liquid or dispersion state with the downstream channel 14 interposed therebetween. Is an attachment that allows the mixed or diluted liquid to flow out into the downstream flow path 14 together with the raw water, and includes an inner cylinder 19 and an outer cylinder 20 that are concentrically arranged. The hollow portion having an annular cross section between the inner cylindrical body 19 and the outer cylindrical body 20 is formed with an upstream side blocking portion 22 and a downstream side blocking portion 23 at both ends. The medicine storage chamber 15 is covered. Further, the inlet 16c of the raw water inflow passage (branch water passage) 16 to the medicine storage chamber 15 provided in the upstream side blocking portion 22 is a portion where the inner diameter of the raw water main flow passage 21 is reduced (hereinafter referred to as “first reduced diameter portion”). It is disposed in a portion upstream of 21 a (hereinafter referred to as “inflow passage opening”) 21 b and opens on the inner side surface 45 of the raw water main passage 21. The inner diameter D1 (cross-sectional area S1) of the first reduced diameter portion 21a of the raw water main flow path 21 is equal to the inner diameter D2 (cross-sectional area S2) of the inflow path opening 21b in which the inlet 16c of the raw water inflow path 16 is open. On the other hand, it is getting smaller.

  Further, according to the mixing attachment 10 of the first embodiment, the raw water main flow channel 21 is a portion on the upstream side of the inflow passage opening 21b (hereinafter referred to as “the first”). After the inner diameter is once reduced at 21c, the inner diameter is enlarged at the inflow passage opening 21b, and further, the inner diameter is reduced at the first reduced diameter portion 21a on the downstream side. That is, the inner diameter D3 (cross-sectional area S3) of the second reduced diameter portion 21c is smaller than the inner diameter D2 (cross-sectional area S2) of the inflow passage opening 21b and is larger than the inner diameter D1 (cross-sectional area S1) of the first reduced diameter portion. It is getting bigger.

  The inflow port 16c is desirably opened to the outside of the inner side surface 21d of the second reduced diameter portion so that the raw water can easily flow into the inflow port 16c.

  According to the mixing attachment 10 of the first embodiment, the raw water inflow channel 16 is provided including a portion 16 a that extends obliquely from the inflow port 16 c on the inner surface of the raw water main flow channel 21 toward the medicine storage chamber 15. It has been.

  According to the first embodiment, the mixing attachment 10 is a substantially cylindrical device, and the mounting hole 24 into which the shower device 11 is screwed and mounted is surrounded by the peripheral wall 33 at the upper end. ing. A mounting projection 25 to which the shower water supply hose 12 is mounted is provided at the lower end portion of the mixing attachment 10 so as to protrude downward from the overhanging base end portion 30. And the raw | natural water main flow path 21 which penetrates between the mounting hole 24 and the mounting | wearing protrusion 25 and cuts through the attachment 10 for mixing vertically is located in the center part of the attachment 10 for mixing of circular cross section, and the inner side cylinder 19 Is formed inside.

  The outer cylinder 20 concentrically arranged with the inner cylinder 19 is a member made of synthetic resin, and protrudes inward in the radial direction from the upper and lower ends and is provided integrally as an upstream inner blocking part. A space surrounded by 22b and the downstream inner blocking portion 23b, the outer peripheral surface of the inner cylinder 19 and the outer cylinder 20 forms a medicine storage chamber 15 having an annular cross section. Further, the outer cylindrical body 20 has an air hole 26 formed at the upper end portion thereof, and a water drain injection hole 27 (a hole for draining water and injecting medicine) at the lower end portion of the air hole 26. It is provided vertically below. Further, a transparent cylindrical cover body 28 is mounted so as to cover the outer side of the outer cylinder 20, and the cover body 28 can be slid up and down with respect to the outer cylinder 20, and the outer cylinder It is integrated with the body 20 so as to be rotatable and slidable with respect to the upstream outer blocking portion 22a and the downstream outer blocking portion 23a together with the outer cylindrical body 20. The outer cylinder 20 has transparency.

  According to the first embodiment, it is preferable that the medicine storage chamber 15 between the outer cylinder 20 and the inner cylinder 19 has a capacity of 5 to 25 mL. Since the capacity of the medicine storage chamber 15 is 5 to 25 mL, the size of the shower head can be adjusted to an appropriate size, and the advantage that the flow rate reduction during use of the shower can be suppressed can be obtained.

  Furthermore, according to the first embodiment, the upstream outer blocking portion 22a that forms the upstream blocking portion 22 together with the upstream inner blocking portion 22b is integrally formed with the mounting protrusion 25 with the overhanging base end portion 30 interposed therebetween. It is a portion that is mounted and fixed so as to cover the outer peripheral surface of the inner cylinder 19 and is attached so as to close the gap between the inner cylinder 19 and the outer cylinder 20 from the outside of the upstream inner blocking portion 22b. . Further, the downstream outer blocking portion 23a that constitutes the downstream blocking portion 23 together with the downstream inner blocking portion 23b is integrally formed with the inner cylinder 19 so as to extend radially outward from the upper end of the inner cylinder 19. It is a portion that is provided so as to close the gap between the inner cylinder 19 and the outer cylinder 20 from the outside of the downstream inner blocking portion 23b. According to the first embodiment, an O-ring or the like is appropriately provided as necessary at the joint portion between the outer closing portions 22a and 23a and the inner closing portions 22b and 23b or the joint portion between other members. The water-stopping property of these joints is improved.

  Further, according to the first embodiment, the mixing attachment 10 uses a shower at a flow rate of 6 L / min to 15 L / min, preferably 8 L / min to 12 L / min, which is a flow rate when using a general shower. The flow rate distribution ratio Q2 / Q1 between the flow rate Q1 to the first reduced diameter portion 21a of the raw water main channel 21 and the flow rate Q2 to the raw water inflow channel 16a is set to 0.05 to 0.23. Has been. Thereby, when the raw water inlet 16 is opened or closed, the flow rate of the shower water sprayed from the water spray plate of the shower device 11 is 85 to 100%, preferably 90% with respect to the flow rate of the general shower device. It becomes possible to make -100%, and a good shower flow rate will be obtained. The concentration of the mixing agent in the raw water is set to a desired range (about 0.05 to 5.0% by mass), and the mixing agent is kept in the raw water while maintaining the desired concentration for a predetermined time (preferably about 10 to 60 seconds). It is possible to bathe the shower water on the body, for example, for hot water while mixing.

According to the first embodiment, the inner diameter D1 of the first reduced diameter portion 21a of the raw water main channel 21 is preferably 4.2 to 5.4 mm (the cross-sectional area S1 is 13.9 to 22.9 mm ² ). The inner diameter D2 of the inflow passage opening 21b is preferably 6.7 to 9.5 mm (cross-sectional area S2 is 35.3 to 70.9 mm ² ). Thus, a desired flow rate can be passed through the raw water main flow path, and a good shower flow rate can be obtained.

  And according to this 1st Embodiment, as shown in FIG. 3, the part by which an internal diameter is restrict | squeezed immediately after the downstream of the inflow path opening part 21b of the raw | natural water main flow path 21 in which the inflow port 16c of the raw | natural water inflow path 16 opens. The first diameter-reduced portion 21a is an annular stepped surface 42 along a plane perpendicular to the axial direction of the raw water main flow channel 21, so that the diameter D1 thereof is The diameter is reduced so that the diameter D2 of the inflow passage opening 21b is 0.4 to 0.8 (cross-sectional area ratio S1 / S2 is 0.2 to 0.65). As a result, there is an advantage that raw water can be easily taken into the inlet 16c when the inlet 16c is opened.

Furthermore, according to the first embodiment, the total opening area of a large number of water spray holes formed in the water spray plate of the shower device 11 is preferably 30 to 60 mm ² . By total area of nozzle holes is in the 30mm ² ~60mm ^2, reduction of watering flow rate of the shower water can be suppressed, feel to the skin during use comfortable shower device can be obtained.

  The ratio C / D1 of the inner diameter C (cross-sectional area S4) of the raw water inflow passage 16a (see FIG. 3) to the inner diameter D1 of the first reduced diameter portion 21a of the raw water main flow path 21 is 0.46 to 0.95 (cross-sectional area). The ratio S4 / S1 is preferably 0.2 to 0.9). Since the ratio of the inner diameter C of the raw water inflow passage 16a to the inner diameter D1 of the first reduced diameter portion 21a is 0.46 to 0.95, a desired amount of raw water is supplied to the raw water inflow passage 16a (the medicine storage chamber 15). The advantage of facilitating inflow is obtained.

  Further, according to the first embodiment, the inlet 16c of the raw water inflow passage 16 is opened at the inner side surface 45 of the inflow passage opening 21b, and is formed in the upstream outer blocking portion 22a of the raw water inflow passage 16. The outer raw water inflow passage 16a has an inner diameter C of about 2.5 to 4 mm, for example, in a shower device, and is directed toward the drug containing chamber 15 from the inlet 16c with respect to the axial direction of the raw water main flow passage 21, for example. It is provided extending obliquely at an angle of about 5 to 80 degrees.

  Furthermore, according to the first embodiment, the inner diameter of the raw water main flow channel 21 is temporarily reduced as the second reduced diameter portion 21c immediately before the inflow passage opening 21b where the inflow port 16c of the raw water inflow passage 16 opens. It is squeezed. That is, the inner diameter D3 of the second reduced diameter portion 21c is interposed between the inflow passage opening 21b and an annular step surface 43 along a surface perpendicular to the axial direction of the raw water main channel 21. The diameter is reduced to 50 to 90% of the inner diameter D2 of the inflow passage opening 21b (cross-sectional area ratio S3 / S2 is 0.25 to 0.8). As a result, the raw water that has passed through the second reduced diameter portion 21c is caused to flow in an oblique direction with respect to the axial direction of the raw water main flow channel 21 at the inflow passage opening 21b, so that the raw water can be easily taken into the inlet 16c. Will be obtained. Moreover, according to the first embodiment, the inner diameter D3 of the second reduced diameter portion 21c is larger than the inner diameter D1 of the first reduced diameter portion 21a. Thereby, an advantage that raw water can be easily taken into the inflow port 16c is obtained.

  On the other hand, according to the first embodiment, the opening and closing of the inflow path 16 and the outflow path 17 of the medicine storage chamber 15 can be performed by operating the cover body 28 attached to the outside of the outer cylindrical body 20 via the slide locking mechanism. Further, it is possible to easily switch to a state in which the water can be drained from the medicine storage chamber 15 and the mixing medicine can be injected into the medicine storage chamber 15. That is, as shown in FIG. 4, the upper half portion of the cylindrical cover body 28 is provided with a plurality of anti-slip projections 37 for easily sliding the cover body 28, Further, a notch recess 29 is provided at the lower end edge of the cover body 28 as a slide locking mechanism, and the notch recess 29 is provided at the base end projecting upward from the protruding base end 30 of the mounting projection 25. The locking projection 31 is locked. Further, a cover body projection 32 is provided at the upper end of the cover body 28 so as to protrude upward, and the cover body projection 32 is formed by extending in the circumferential direction along the lower end edge of the peripheral wall 33 of the mounting hole 24. The notch groove 34 is slidably fitted and slidable. Further, the cover body 28 is formed with a cover body air hole 35 at its upper end and a cover body drain injection hole 36 at its lower end (see FIG. 2A). The air holes 35 and the cover body draining injection holes 36 are equal to these intervals and the cover body draining injection holes 36 so that they can coincide with the air holes 26 and the draining injection holes 27 of the outer cylinder 20 at the same time. Is provided in a state of being positioned vertically below the cover body air hole 35.

  Then, if the cover body 28 is slid downward relative to the outer cylindrical body 20 and the notch recess 29 is locked to the base end locking projection 31, the air hole 26, the cover body air hole 35, and the water drain The injection hole 27 and the cover body draining injection hole 36 coincide with each other at the same time (see FIGS. 5A and 5B), and the outer raw water inflow passage 16a formed in the upstream outer closing portion 22a and the upstream The inner raw water inflow passage 16b formed in the side inner closing portion 22b, the outer outflow passage 17a formed in the downstream outer closing portion 23a, and the inner outflow passage 17b formed in the downstream inner closing portion 23b do not communicate with each other. It becomes. From this state (see FIG. 3), if the cover body 28 is slid upward with respect to the outer cylinder 20, the notch recess 29 is locked to the base end locking projection 31, and The cover body protrusion 32 at the upper end of the cover body 28 is disposed at the left end of the cutout concave groove 34, and the integral locking groove 38 formed on the inner surface of the cover body 28 is formed on the outer peripheral surface of the outer cylinder 20. The cover pair 28 and the outer cylindrical body 20 are rotated together as a result of being locked by the integrated locking protrusion 39. By sliding the cover body 28 upward relative to the outer cylindrical body 20, the matched air hole 26 and cover body air hole 35, the drainage injection hole 27 and the cover body drainage injection hole 36 are formed. These are shifted up and down to close them (see FIG. 2A).

  From the state in which the cover body 28 is slid upward and the cover body 28 and the outer cylindrical body 20 can rotate together, the cover body protrusion 32 is further rotated to the right along the notch groove 34, If these are slide-rotated until the cover protrusion 32 is in contact with the right end of the notch groove 34, the outer closing portions 22a, 23a and the inner closing portions 22b, 23b are relatively slid and rotated, and the upstream outer side The outer raw water inflow passage 16a formed in the blocking portion 22a, the inner raw water inflow passage 16b formed in the upstream inner blocking portion 22b, and the outer outflow passage 17a and the downstream inner blocking portion formed in the downstream outer blocking portion 23a. The inner outflow passage 17b formed in 23b is in a communication state (see FIG. 2B), and the raw water inflow passage 16 and the outflow passage 17 are formed at the same time, and the raw water flows into the medicine storage chamber 15. The mixing agent becomes possible to flow out causes.

  On the other hand, when the raw water inflow passage 16 and the outflow passage 17 are simultaneously opened to allow the mixing agent to flow out, if the cover body 28 and the outer cylindrical body 20 are integrally slid and rotated in the opposite direction, the raw water The inflow path 16 and the outflow path 17 are simultaneously closed, so that the outflow of the mixing medicine and the inflow of the raw water into the medicine storage chamber 15 are easily restored. If the cover body 28 is further slid downward with respect to the outer cylindrical body 20, the air hole 26 and the cover body air hole 35, and the water drain injection hole 27 and the cover body water drain injection hole 36 are matched again. As a result, the fluid remaining in the medicine storage chamber 15 can be discharged.

Note that, according to the first embodiment, the spiral flow that is connected to the outlet of the raw water inflow passage 16 at the upstream end of the medicine storage chamber 15 and generates a spiral flow toward the outflow passage 17 in the medicine storage chamber 15. A generating means 18 is provided. That is, according to the first embodiment, as shown in FIG. 6 for example, the spiral flow generating means 18 communicates with the inner raw water inflow passage 16b and is provided so as to protrude above the upstream inner blocking portion 22b. A pair of hollow cylindrical projections 40 having a discharge port 41 closed at the lower end portion of the medicine storage chamber 15 having an annular cross section and spaced at an interval of 180 degrees in the circumferential direction. Moreover, these hollow cylindrical protrusions 40 open the discharge ports 41 in the circumferential direction of the medicine storage chamber 15 having an annular cross section, so that the raw water flowing in from the raw water inflow passage 16 is introduced in the circumferential direction of the annular cross section. In this manner, a spiral flow toward the outflow path 17 is generated in the medicine storage chamber 15. Here, it is preferable that the outlet 41 of the hollow cylindrical protrusion 40 has a hole area of ² to 8 mm ² .

  FIGS. 7A and 7B show a mixing attachment 80 according to the second embodiment of the present invention. The mixing attachment 80 according to the second embodiment has substantially the same configuration as the mixing attachment 10 according to the first embodiment, but the upstream blocking portion 81 is operated by rotating the outer cylinder 20 with respect to the inner cylinder 19. The mechanism that opens and closes the raw water inflow path 83 formed in the flow path and the outflow path 84 formed in the downstream side blocking portion 82 is different from the opening and closing mechanism of the first embodiment. Further, according to the second embodiment, the inlet 83c of the raw water inflow passage 83 into the medicine storage chamber 15 provided in the upstream side blocking portion 81 is a portion where the inner diameter of the raw water main flow passage 21 is reduced (first reduced diameter). Part) 21a upstream of the portion (inflow passage opening) 21b is disposed immediately before the first reduced diameter portion 21a and opens to the inner surface of the raw water inflow passage 21. Further, the raw water inflow passage 83 does not include a portion extending obliquely from the inflow port 83c toward the medicine storage chamber 15, and at the start portion thereof, the raw water inflow passage 83 extends in a direction perpendicular to the axial direction of the raw water main flow channel 21. It is extended and provided.

  Further, according to the second embodiment, the inner cylindrical body 19 has the upstream communication hole 85 and the downstream communication hole 86 in the portion where the peripheral surface is covered by the upstream blocking part 81 and the downstream blocking part 82. Each of the inner cylindrical bodies 19 is vertically opened and formed at the same position in the circumferential direction so as to penetrate the circumferential wall of the inner cylindrical body 19 in the lateral direction. Further, the inflow path 83 and the outflow path 84 formed respectively inside the upstream side blocking part 81 and the downstream side blocking part 82 are along the circumferential direction of the upstream side blocking part 81 and the downstream side blocking part 82 that are annular portions. These central portions are respectively provided so as to penetrate concentrically and annularly.

  Furthermore, according to the second embodiment, the raw water inflow passage 83 formed inside the upstream side blocking portion 81 is blocked at the upstream side of the portion covering the outer peripheral surface of the inner cylindrical body 19 at a specific position in the circumferential direction. The accommodation chamber side communication which has the inflow port 87 (refer FIG.7 (b)) formed penetrating the part 81, and penetrated the top | upper surface wall of the inflow channel 83, and was formed in multiple places in the circumferential direction. A hole 88 is provided, and raw water can be supplied from the inflow path 83 to the medicine storage chamber 15 through the storage chamber side communication holes 88. Further, the outflow passage 84 formed inside the downstream blocking portion 82 is a downstream blocking portion 82 that covers the outer peripheral surface of the inner cylindrical body 19 at a specific position in the circumferential direction facing the same direction as the inflow port 87. The accommodation chamber side communication hole 90 having an outlet 89 (see FIG. 7B) formed through the outer wall and having a plurality of openings formed in the circumferential direction through the lower wall of the outflow passage 84. The raw water mixed with the mixing medicine can be discharged from the medicine storage chamber 15 to the outflow path 84 through these storage chamber side communication holes 90.

  And according to the mixing attachment 80 of this 2nd Embodiment, it is latched by the upstream blocking part 81 and the downstream blocking part 82 with respect to the inner side cylinder 19 similar to the mixing attachment 10 of the said 1st Embodiment. By rotating the integrated outer cylinder 20, the upstream communication hole 85 and the downstream communication hole 86, the inlet 87 of the inlet 83 and the outlet of the outlet 84 as shown in FIG. 89, the upstream side communication hole 85 and the downstream side communication hole 86, and the inlet 87 of the inlet 83 and the outlet 89 of the outlet 84 as shown in FIG. The matching state can be easily switched, and the inlet 83c of the raw water inflow passage 83 to the medicine storage chamber 15 provided in the upstream side blocking portion 81 is formed in the portion 21a in which the inner diameter of the raw water main passage 21 is reduced. In the upstream part 21b Since being location open to the inner surface of the water inlet passage 21, so that the same operational advantages as the mixing attachment 10 of the first embodiment.

  FIG. 8 shows a mixing attachment 61 according to the third embodiment of the present invention. The mixing attachment 61 of the third embodiment has substantially the same configuration as that of the mixing attachment 80 of the second embodiment, but does not have the cover body 28 outside the outer cylindrical body 62, and has an outer side. The air hole 26 and the drainage injection hole 27 are opened and closed, and the raw water inflow path 64 and the outflow path 65 are opened and closed by an operation via an open / close slide member 63 slidably mounted in the axial direction X of the cylindrical body 62. You can also. That is, the air hole 26 and the drainage injection hole 27 can be opened and closed by sliding the open / close slide member 63 up and down with respect to the outer cylinder 62, and the outer cylinder 62 can be opened and closed on the upstream side blocking portion 66 and the downstream side. By sliding in the circumferential direction relative to the inner cylindrical body 68 together with the side blocking portion 67, the raw water inflow passage 64 formed in the upstream blocking portion 66 and the outflow passage 65 formed in the downstream blocking portion 67 are opened and closed. Can be done.

And according to the attachment 61 for mixing of this 3rd Embodiment, the chemical | medical agent storage chamber 69 between the outer side cylinder 62 and the inner side cylinder 68 is provided with the capacity | capacitance of 5-25 mL, for example, 2000-30000 mPa *. The mixing drug having a viscosity of sec is injected and filled. For example, when the shower is used at a flow rate of 6 L / min to 15 L / min, preferably 8 L / min to 12 L / min, assuming that the total area of the water spray holes of the water spray plate is 30 to 60 mm ² , The flow rate distribution ratio Q2 / Q1 between the flow rate Q2 flowing into the medicine storage chamber 69 and the flow rate Q1 flowing through the first reduced diameter portion 21a of the raw water main flow channel 21 is set to be 0.05 to 0.23. ing.

Further, the inner diameter D1 of the first reduced diameter portion 21a of the raw water main flow channel 21 is 4.2 to 5.4 mm (the cross-sectional area S1 is 13.9 to 22.9 mm ² ), and the inner diameter of the inflow passage opening 21b. D2 is 6.7 to 9.5 mm (cross-sectional area S2 is 35.3 to 70.9 mm ² ). Therefore, the inner diameter D1 of the first reduced diameter portion 21a is 0.4 to 0.8 (the cross-sectional area ratio S1 / S2 is 0.2 to 0.65) of the inner diameter D2 of the inflow passage opening 21b. The diameter is reduced. Furthermore, the inner diameter D3 of the raw water main flow path (second reduced diameter portion) 21c immediately after the upstream side of the inflow path opening 21b is equal to the inner diameter D2 of the inflow path opening 21b. Further, the inner diameter C of the inlet 64a of the raw water inflow path 64 is 2.5 to 4 mm, and therefore the inlet 64a of the raw water inflow path 64 with respect to the inner diameter D1 of the first reduced diameter portion 21a of the raw water main flow path 21. The ratio C / D1 of the inner diameter C is 0.46 to 0.95 (cross-sectional area ratio S4 / S1 is 0.2 to 0.9).

  And the shower head 100 to which the attachment for mixing 61 of the third embodiment is attached also achieves the same effects as those of the first embodiment described above.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the attachment for mixing according to the present invention is not limited to the one that mixes and sends out body medicine such as bath medicine or skin care medicine into shower water, and is attached to other spraying equipment other than shower equipment. It is also possible to employ a liquid or a dispersion of a medicine such as household medicine or agricultural medicine for mixing with raw water.

  A plurality of drug storage chambers can be provided by providing a partition wall or the like. A plurality of medicine storage chambers can be arranged, and one or a plurality of medicine storage chambers can be selected, and individual medicines having different functions can be mixed with raw water at the same time or with a time difference and sprayed together with shower water. . By providing a plurality of drug storage chambers, for example, drugs whose storage stability deteriorates when mixed can be stored in individual drug storage chambers and mixed and used at the time of use. Moreover, the same chemical | medical agent can be accommodated in a separate chemical | medical agent storage chamber, and shower water from which a chemical | medical agent density | concentration differs can be sprayed.

  Furthermore, for example, two kinds of fluidizers having different specific gravities, for example, two each can be accommodated in the medicine accommodating chamber 15 for a total of four. Due to the action of the water flow from the inlet 16 to the outlet 17, the fluidizer moves freely in the drug storage chamber 15 so as to collide with the wall surface or collide with each other while moving between the fluidizers. It can be (moved). This makes it possible to mix the shower agent more smoothly into the raw water that has flowed into the medicine storage chamber 15.

  And according to the present invention, for example, as shown in FIG. 9, in addition to using the mixing attachments 10, 80, 61 having the above-described configuration intervening between the shower appliance and the shower water supply hose, These mixing attachments 10, 80, 61 are integrally attached to the shower device 70, and the shower device 70 has a function capable of switching between a state in which the mixing agent flows out together with the shower water and a state in which only the shower water flows out. Can also be used. That is, the mixing attachments 10, 80, 61 can be used by being attached to the shower device 70 together with, for example, the water purification unit 71 including a dechlorination filter through various known attachment means. Further, the mixing attachments 10, 80, 61 can be attached to the shower device 70 so as not to be seen from the outside of the shower device 70.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example and a comparative example, this invention is not limited to these.

  It has substantially the same configuration as the mixing attachment of the third embodiment, the flow distribution ratio Q2 / Q1 between the flow rate Q1 to the first reduced diameter portion and the flow rate Q2 to the branch water channel, and the disconnection of the first reduced diameter portion The mixing attachments in which the cross-sectional area ratio S1 / S2 with respect to the cross-sectional area S2 of the inflow passage opening of the area S1 is the value shown in Table 1, the mixing attachments of Examples 1 to 10, and the comparative example It was set as the attachment for mixing 1-3. The mixing agent (viscosity 13000 mPa · sec, usage amount 12 g) is accommodated in the drug storage chamber (capacity 15 mL) of each mixing attachment, and attached to the shower apparatus shown in FIG. ) And the shower flow ratio were measured. The measurement results are shown in Table 1. In addition, 38-40 degreeC hot water was used as raw | natural water, and it supplied to the shower apparatus with the flow volume of 8 L / min.

[Method of measuring dissolution time]
In each of the drug storage chambers of the mixing attachments of Examples 1 to 10 and Comparative Examples 1 to 3, after 12 g of charged mixing drug having a viscosity of 13000 mPa · sec and a specific gravity of 0.93 was filled and stored, from the shower water supply hose While supplying raw water to each attachment for attachment at a flow rate of 8 L / min, the raw water inflow passage and the outflow passage are opened, and the raw water is passed through the medicine storage chamber. The time until it was not recognized was measured.

[Measurement method of shower flow]
While removing the outer cylinder 62 which comprises the chemical | medical agent accommodation chamber as shown in FIG. 10 from each attachment for mixing of Examples 1-10 and Comparative Examples 1-3, the raw | natural water inflow path 64 and the outflow path 65 are open | released. In this state, raw water is supplied from the shower water supply hose to each mixing attachment at a flow rate of 8 L / min. Here, the shower flow rate Q4 sprayed from the spray plate, the flow rate Q3 discharged from the outflow passage 65, and the flow rate Q2 discharged from the raw water inflow passage 64 are measured. A flow rate obtained by adding the flow rate Q3 discharged from the outflow passage 65 to the shower flow rate Q4 is defined as a flow rate Q1 to the first reduced diameter portion of the raw water main flow channel, and Q2 / Q1 is defined as a flow rate distribution ratio. Moreover, the shower flow volume Q5 sprayed from a water spray hole is measured using a general shower apparatus (product number THY717 by TOTO), and the raw water main flow path of each attachment for Examples 1-10 and Comparative Examples 1-3 Q6 is the shower flow rate when water is passed through only the water, and Q6 / Q5 is the shower flow rate ratio.

  As is apparent from the measurement results of the dissolution time and the shower flow ratio shown in Table 1, the mixing attachments of Examples 1 to 10 set to the flow distribution ratio and the cross-sectional area ratio according to the present invention are those of Comparative Examples 1 to 3. Compared with the attachment for mixing, the remaining amount of the agent can be remarkably reduced within a desired time of about 10 to 60 seconds, and the mixing agent can be efficiently mixed with the raw water, and a desired shower flow rate can be secured. For example, it turns out to be suitable for performing a shower for hot water.

It is a side view explaining the condition which attaches and uses the attachment for mixing which concerns on this invention to a shower apparatus. (A) And (b) is sectional drawing explaining the condition which mixes the chemical | medical agent for mixing with raw | natural water with the attachment for mixing which concerns on 1st Embodiment of this invention. It is a principal part expanded sectional view explaining the structure which arrange | positions the inflow port of the raw | natural water inflow path to a chemical | medical agent storage chamber in the upstream part of the part which restrict | squeezed the internal diameter of the raw | natural water main flow path. It is a front view explaining the slide latching mechanism in the mixing attachment which concerns on 1st Embodiment of this invention. (A) And (b) is sectional drawing explaining the condition which replenishes the chemical | medical agent for mixing to the attachment for mixing which concerns on 1st Embodiment of this invention. It is a schematic perspective view explaining the spiral flow generation means provided in the attachment for mixing which concerns on 1st Embodiment of this invention. (A) And (b) is sectional drawing explaining the condition which mixes the chemical | medical agent for mixing with raw | natural water with the attachment for mixing which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the attachment for mixing which concerns on 3rd Embodiment of this invention. It is sectional drawing which illustrates the shower fixture which attached the attachment for mixing which concerns on this invention integrally. In each of the mixing attachments of Examples 1 to 10 and Comparative Examples 1 to 3, the flow rates Q4, Q3, and Q2 flowing out from the watering plate, the outflow channel, and the raw water inflow channel and the flow rate Q1 to the first reduced diameter portion are outside. It is sectional drawing demonstrated in the state which removed the cylinder. It is a partially broken side view explaining the conventional mixing attachment.

Explanation of symbols

10, 80, 61 Mixing attachment 11, 70 Shower fixture 12 Shower water supply hose 13 Upstream channel 14 Downstream channel 15, 69 Drug storage chamber 16, 83, 64 Raw water inflow channel (branch channel)
16a Outer raw water inflow channel 16b Inner raw water inflow channel 16c, 83c Inlet 17, 84, 65 Outlet channel 17a Outer channel 17b Outer channel 17b Inner outlet channel 19, 68 Inner cylinder 20, 62 Outer cylinder 21 Raw water main channel 21a 1st diameter-reduced part (the part immediately after the downstream of the inflow path opening part of a raw | natural water main flow path)
21b Inflow channel opening (portion where the inlet of the branch water channel to the drug storage chamber of the raw water main channel opens)
21c 2nd diameter-reduced part (the part immediately before the upstream of the inflow path opening part of a raw | natural water main flow path)
21d Inner side surface 22, 81, 66 of second reduced diameter portion Upstream side blocking portion 23, 82, 67 Downstream side blocking portion 28 Cover body 42, 43 Step surface 45 Inner side surface 85 of raw water main flow path (inflow passage opening) upstream Side communication hole 86 Downstream communication hole 87 Inlet port 88, 90 Storage chamber side communication hole 89 Outlet port

Claims (9)

A raw water main channel, a branch channel, and a drug storage chamber; the raw water of the raw water main channel is flowed into the drug storage chamber through the branch channel; and the mixing water stored in the drug storage chamber is introduced into the raw water An attachment for mixing that flows out into the raw water main flow path with the raw water while mixing,
In the raw water main channel, the cross-sectional area S1 of the first reduced diameter portion immediately downstream of the portion where the inflow port of the branch channel to the drug storage chamber is open (inflow channel opening) is the inflow The flow distribution ratio Q2 / Q1 between the flow rate Q1 to the first reduced diameter portion of the raw water main channel and the flow rate Q2 to the branch channel is smaller than the cross-sectional area S2 of the raw water main channel at the channel opening. Attachment for mixing that is 0.05 to 0.23.   2. The mixing according to claim 1, wherein in the raw water main channel, a cross-sectional area ratio S1 / S2 of a cross-sectional area S1 of the first reduced diameter portion to a cross-sectional area S2 of the inlet passage opening is 0.2 to 0.65. attachment.   An inner cylinder and an outer cylinder, the inside of the inner cylinder is a raw water main flow path, and a hollow portion between the inner cylinder and the outer cylinder is the drug storage chamber. The mixing attachment according to 1 or 2.   The mixing attachment according to any one of claims 1 to 3, wherein an inlet of the branch water channel is open on an inner surface of the inlet channel opening.   The cross-sectional area S3 of the raw water main flow path (second reduced diameter portion) immediately upstream of the portion where the inflow opening opens is smaller than the cross-sectional area S2 of the inflow passage opening, and the first reduced diameter portion is cut off. The mixing attachment according to any one of claims 1 to 4, wherein the attachment is larger than the area S1.   The mixing attachment according to claim 5, wherein the inflow port opens outward from an inner surface of the second reduced diameter portion.   The mixing attachment according to any one of claims 1 to 6, wherein the medicine storage chamber is composed of a plurality of medicine storage chambers, and one or a plurality of medicine storage chambers of the medicine storage chamber is selected and allowed to pass therethrough.   The attachment for mixing in any one of Claims 1-7 used by attaching to a chemical | medical agent dispersion instrument. A medicine spraying device to which the attachment for mixing according to any one of claims 1 to 8 is integrally attached.