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WO2018131368A1 - Pomme de douche et élément de rétrécissement - Google Patents

Pomme de douche et élément de rétrécissement Download PDF

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Publication number
WO2018131368A1
WO2018131368A1 PCT/JP2017/044583 JP2017044583W WO2018131368A1 WO 2018131368 A1 WO2018131368 A1 WO 2018131368A1 JP 2017044583 W JP2017044583 W JP 2017044583W WO 2018131368 A1 WO2018131368 A1 WO 2018131368A1
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WO
WIPO (PCT)
Prior art keywords
passage forming
water passage
water
air introduction
forming member
Prior art date
Application number
PCT/JP2017/044583
Other languages
English (en)
Japanese (ja)
Inventor
浩司 中田
直揮 堂本
田村　秀樹
Original Assignee
株式会社Ｌｉｘｉｌ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｌｉｘｉｌ filed Critical 株式会社Ｌｉｘｉｌ
Publication of WO2018131368A1 publication Critical patent/WO2018131368A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00—Baths; Douches; Appurtenances therefor
    • A47K3/28—Showers or bathing douches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/18—Roses; Shower heads

Definitions

  • the present invention relates to a shower head and a throttle member.
  • a cover member, a water passage forming member disposed inside the cover member and having an air introduction hole, and a throttle member for restricting the flow path of water are provided, and air is supplied through the air introduction hole of the water passage formation member.
  • a shower head to be introduced is known (see, for example, Patent Documents 1 and 2).
  • the throttle member of the shower head described in Patent Literature 1 is disposed on the downstream side of the water passage forming member at a connecting portion between two members obtained by dividing the water passage forming member into two members.
  • the throttle member is fixed to the end portion on the most upstream side of the water passage forming member.
  • the lower end part of the throttle member of the shower head described in Patent Document 2 constitutes a hose attachment part, and a hose that supplies water to the shower head is detachably attached to the lower end part of the throttle member.
  • the water passage forming member is divided into two members and assembled, the number of connecting portions increases, and the assembling property tends to be deteriorated.
  • the throttle member is arranged on the downstream side of the water passage forming member and the water passage forming member is arranged inside the cover member, the water passage forming member is used when the throttle member is taken out for maintenance. Must be removed from the cover member. For this reason, it is difficult to maintain the diaphragm member.
  • the throttle member is integrated with the water passage forming member, and is fixed to the end portion on the most upstream side of the water passage forming member in a non-detachable manner. It is difficult to maintain the diaphragm member.
  • the maintainability of the diaphragm member can be improved.
  • the throttle member arranged in the water passage forming member other than the shower head can improve the maintainability for the same reason as the throttle member arranged in the shower head.
  • An object of the present invention is to provide a shower head and a throttle member that can improve maintainability.
  • the present invention includes a cover member (for example, a cover member 3 to be described later) and at least a part of the cover member to form a water passage through which water flows and a first air introduction hole (for example, to be described later).
  • a water passage forming member for example, a water passage forming member 6 described later
  • a shower head configured to be detachable with respect to the water passage forming member, and a throttle member (for example, an orifice member 7 to be described later) that squeezes a flow path of water flowing inside the member.
  • a shower head 2 described later.
  • the throttle member is disposed on the upstream side and has a nozzle member (for example, a nozzle member 71 described later) that narrows the flow path, and a diffuser member that is disposed on the downstream side and expands the flow path (for example, a diffuser member 72 described later). ) And is preferably configured as a unit.
  • the throttle member has an engaging part (for example, an engaging part for attaching an orifice member 724 described later) that can be engaged with and disengaged from the first air introduction hole.
  • an engaging part for example, an engaging part for attaching an orifice member 724 described later
  • a second air introduction hole (for example, an external communication air introduction hole 301 described later) is formed between the cover member and the water passage forming member and communicates the first air introduction hole and the outside of the cover member. ).
  • the first air introduction hole and the second air introduction hole also serve as a drainage hole that discharges water returning from the downstream side to the upstream side in the water passage forming member.
  • the second air introduction hole is disposed on the front side and / or the rear side of the shower head.
  • the present invention provides a throttle member that forms a water passage through which water flows and is arranged in a water passage forming member having a first air introduction hole, and restricts the flow path of water that flows through the inside of the water passage forming member.
  • the throttle member has a claw portion (for example, an orifice member mounting claw portion 724b to be described later) that can be engaged with and disengaged from the first air introduction hole, so that it can be attached to and detached from the water passage forming member.
  • the present invention relates to a configured throttle member.
  • FIG. 3 is a sectional view taken along line AA in FIG. 2.
  • FIG. 7 is a cross-sectional view of the shower head taken along line BB in FIG. 6.
  • FIG. 7 is a cross-sectional view of the shower head taken along line CC in FIG. 6.
  • FIG. 8 is a cross-sectional view of the shower head taken along line DD in FIG.
  • FIG. 1 is a longitudinal sectional view showing a shower apparatus 1 as an embodiment of the present invention.
  • FIG. 2 is a partially enlarged view of the shower head 2 in FIG.
  • FIG. 3 is a perspective view showing a state where the orifice member 7 is removed from the water passage forming member 6 of the shower head 2 of the present invention.
  • FIG. 4 is a cross-sectional perspective view showing an engaged state between the orifice member 7 and the water passage forming member 6.
  • FIG. 5 is a perspective view showing a state where the orifice member 7 is separated into the nozzle member 71 and the diffuser member 72.
  • 6 is a cross-sectional view taken along line AA in FIG. FIG.
  • FIG. 7 is a cross-sectional view of the shower head 2 taken along the line BB in FIG.
  • FIG. 8 is a cross-sectional view of the shower head 2 taken along the line CC in FIG.
  • FIG. 9 is a cross-sectional view of the shower head 2 taken along the line DD in FIG.
  • the side opposite to the wall surface 12 in the shower head 2 is defined as the front side F (front side), and the wall surface 12 in the shower head 2.
  • the side is defined as a rear side R (rear side, rear side).
  • the left-right direction when the shower head 2 is viewed from the front side is referred to as a left-right direction X.
  • the vertical direction along the vertical direction is defined as the vertical direction Z.
  • the shower device 1 of the present embodiment is disposed in a bathroom (not shown), for example.
  • the shower device 1 includes a shower head 2, a water faucet (not shown), and a hose portion 11.
  • a water supply pipe (not shown) is connected to the water tap (not shown), and hot water is supplied from this water supply pipe.
  • One end of the hose portion 11 is connected to the faucet, and the other end is connected to the shower head 2. Hot water supplied from the faucet is circulated through the hose portion 11.
  • the hose portion 11 includes a hose body 111, a hose connection member 112, and a connecting member 113.
  • the hose connecting member 112 is connected to the tip of the hose body 111 via a connecting member 113.
  • a hose side threaded portion 112 a that is screwed into an outer circumferential threaded portion 61 of a water passage forming member 6 to be described later is formed on the inner peripheral surface on the distal end side of the hose connecting member 112.
  • the shower head 2 is connected to a faucet (not shown) via the hose portion 11.
  • the shower head 2 discharges hot water supplied from the hose portion 11.
  • the hose connection member 112 of the hose part can be hooked on the shower hook 13 attached to the wall surface 12. Thereby, the position of the shower head 2 is fixed with respect to the wall surface 12.
  • the shower head 2 includes a cover member 3, a water spray plate 4, a water spray plate adapter 5, a water passage forming member 6, and an orifice member 7 as a throttle member.
  • the cover member 3 constitutes the outer shape of the shower head 2 and has a head cover portion 31 and a cylindrical cover portion 32.
  • the head cover portion 31 is disposed at the tip (upper end) of the shower head 2.
  • the cylindrical cover portion 32 is formed in a cylindrical shape and extends downward from the lower end portion of the head cover portion 31.
  • the head cover part 31 constitutes a water spray part, and the cylindrical cover part 32 constitutes a grip part.
  • the cover member 3 is disposed in a forward inclined posture in which the head cover portion 31 on the distal end side is inclined to the front side F in a state where the shower head 2 is hooked on the shower hook 13.
  • the head cover portion 31 of the cover member 3 has a circular cover member opening 31 a on the front side F.
  • a circular water spray plate 4 is attached to the cover member opening 31a so as to close the cover member opening 31a.
  • the watering plate 4 has a plurality of watering holes 41 penetrating the watering plate 4 in the thickness direction. The plurality of water spray holes 41 are formed in almost the entire area of the water spray plate 4.
  • the water spray plate adapter 5 is disposed inside the head cover portion that is the tip end side of the cover member 3.
  • the water spray plate adapter 5 allows hot water flowing through the inside of a water passage forming member 6 described later to flow toward the water spray plate 4.
  • the sprinkling plate adapter 5 includes a water flow guide cylindrical portion 51 and a flow passage expanding portion 52.
  • the water flow guide cylindrical portion 51 is formed in a cylindrical shape.
  • the upstream end portion of the water flow guide tubular portion 51 is connected to the downstream end portion of the water flow path forming member 6 described later.
  • the flow path expanding part 52 is connected to the downstream end of the water flow guide cylindrical part 51, and spreads the hot water guided by the water flow guide cylindrical part 51 in the space on the back side of the water spray plate 4. Then, it guides to the plurality of water spray holes 41 of the water spray plate 4. Hot water guided to the plurality of water spray holes 41 is sprinkled from the surface side of the water spray plate 4.
  • the water flow path forming member 6 is connected to the lower end of the water spray plate adapter 5.
  • the water passage forming member 6 forms a water passage through which hot water flows.
  • the water passage forming member 6 is formed in a cylindrical shape extending in the up-down direction Z, and is almost entirely disposed inside the cover member 3, and the lower end portion of the water passage forming member 6 extends downward from the lower end portion of the cover member 3. It is arranged at a position protruding.
  • the water passage forming member 6 protrudes from the cover member 3 to the upstream side to the extent that it can be engaged with the hose connecting member 112 on the hose portion 11 side.
  • the elongate water passage forming member 6 as in this embodiment illustrated in FIG. 1, leave about 10% of the end in the longitudinal direction from the viewpoint of connection strength with the hose portion 11.
  • 70% or more, preferably 80% or more of the longitudinal direction is inserted into the cover member 3.
  • Hot water is circulated inside the water passage forming member 6 from the upstream side toward the downstream side.
  • the upper side and the lower side of the shower head 2 are the upper side and the lower side when the shower head 2 is hooked on the shower hook 13 (see FIG. 1). Therefore, in the present embodiment, the lower side of the water passage forming member 6 is an upstream side in the flowing direction of hot water, and the upper side of the water passage forming member 6 is a downstream side in the flowing direction of hot water.
  • an outer peripheral screw part 61 As shown in FIG. 2 and FIG. 3, at the upstream end of the water passage forming member 6, an outer peripheral screw part 61, an O-ring locking part 62, a water passage forming member side flange part 63, and a first A pair of water passage forming member side air introduction holes 64 and 64 as air introduction holes are formed.
  • the outer peripheral thread portion 61 is formed on the outer peripheral surface of the upstream end portion of the water passage forming member 6, and when the water passage forming member 6 is connected to the hose portion 11, as shown in FIG.
  • the hose connecting member 112 is screwed into the hose side threaded portion 112a.
  • the O-ring locking part 62 is formed adjacent to the downstream side of the outer peripheral thread part 61 as shown in FIG.
  • An O-ring 621 is disposed in the O-ring locking portion 62.
  • the water passage forming member side flange portion 63 is formed adjacent to the downstream side of the O-ring engaging portion 62 and is formed so as to project annularly from the outer peripheral surface of the water passage forming member 6 in the radial direction of the water passage forming member 6. Is done. On the front side F of the water passage forming member side flange portion 63, two concave portions 631 and 631 that are recessed in the radial direction from the outer peripheral surface of the water passage forming member side flange portion 63 are formed.
  • the two concave portions 631 and 631 are arranged in the circumferential direction across the vertical wall groove portion 632 extending in the axial direction of the water passage forming member 6 on the outer peripheral surface of the water passage forming member 6 on the front side F in the water passage forming member side flange portion 63. They are arranged side by side at a distance.
  • An external communication air introduction hole 301 (see FIG. 6) as a second air conduction hole described later is formed in a portion between the two recesses 631 and 631 and the inner peripheral surface of the cover member 3.
  • the pair of water passage forming member-side air introduction holes 64 and 64 communicate the inside and the outside of the water passage forming member 6 as shown in FIGS. 3 and 4.
  • the pair of water passage forming member-side air introduction holes 64, 64 are disposed on the upper surface of the water passage forming member-side flange 63 so as to be separated from each other in the left-right direction X of the water passage forming member 6. It penetrates in the front-back direction of the water flow path forming member 6 in the tangent of the inner peripheral surface.
  • the pair of water passage forming member side air introduction holes 64 and 64 have a pair of side surface openings 641 and 641 and an inner surface opening 642, respectively, as shown in FIG.
  • the pair of side surface openings 641 and 641 are openings formed on the peripheral surfaces of both end portions in the front-rear direction of the water passage forming member 6 in the through holes formed along the tangent line of the inner peripheral surface of the water passage forming member 6. Communicate in the front-rear direction so as to connect each other.
  • the inner surface opening 642 is an opening formed on the inner peripheral surface of the water passage forming member 6 and communicates with the pair of side surface openings 641 and 641.
  • An orifice member 7 to be described later is the most upstream of the water passage forming member 6 at the edge 642a (the inner peripheral edge of the water passage of the water passage forming member 6) on the lower side of the inner surface opening 642 in the water passage forming member side air introduction hole 64.
  • a pair of orifice member mounting engagement portions (engagement portions) 724 and 724 of the orifice member 7 described later can be engaged and disengaged.
  • the orifice member 7, which is a throttle member, is installed in the vicinity of the end of the water flow path forming member 6 on the most upstream side.
  • the orifice member 7 is disposed adjacent to the end portion on the most upstream side of the water flow path forming member 6. As shown in FIGS. 2 and 3, the orifice member 7 is disposed inside the water passage forming member 6 in the vicinity of the upstream end portion of the water passage forming member 6, and flows through the inside of the water passage forming member 6. It is a member that restricts the flow path of hot water.
  • the orifice member 7 is detachable from the water passage forming member 6 by having a pair of orifice member mounting engaging portions 724 and 724 (described later) that can be engaged with and disengaged from the water passage forming member side air introduction hole 64. Composed.
  • the upstream end portion 7a of the orifice member 7 is disposed so as to be located on the inner diameter side and downstream of the upstream end portion 6a of the water passage forming member 6, so that the coupling strength is increased.
  • the vicinity of the upstream end portion does not necessarily mean that the upstream end portion 6 a of the water flow path forming member 6 and the upstream end portion 7 a of the orifice member 7 are exactly coincident with each other.
  • the upstream end 7a of the orifice member 7 is preferably close to the upstream end 6a of the water passage forming member 6 in a range of about 0 to 10 mm. .
  • the orifice member 7 may be entirely accommodated in the water passage forming member 6, or a part of the orifice member 7 may be exposed.
  • the orifice member 7 includes a nozzle member 71 disposed on the upstream side and narrowing the flow path, and a diffuser member 72 disposed on the downstream side and expanding the flow path.
  • the orifice member 7 is configured as a unit by a nozzle member 71 and a diffuser member 72.
  • the nozzle member 71 and the diffuser member 72 are each formed in a cylindrical shape penetrating in the axial direction.
  • the hollow portions of the nozzle member 71 and the diffuser member 72 constitute a flow path through which hot water flows.
  • the nozzle member 71 and the diffuser member 72 are arranged inside the water passage forming member 6 in a state of being combined as the orifice member 7, and hot water flows therethrough.
  • the nozzle member 71 is connected to the nozzle-side introduction cylindrical portion 711 and the downstream side of the nozzle-side introduction cylindrical portion 711 in order from the upstream side to the downstream side, and from the upstream side to the downstream side.
  • a nozzle-side diameter-reduced cylindrical part 712 whose flow path becomes narrower as it goes toward the nozzle side, and a nozzle-side downstream-side cylindrical part 713 connected to the downstream side of the nozzle-side diameter-reduced cylindrical part 712 are formed.
  • the cross-sectional shape of the inner peripheral surface orthogonal to the flowing direction of hot water in the nozzle side introduction cylindrical portion 711, the nozzle side reduced diameter cylindrical portion 712, and the nozzle side downstream cylindrical portion 713 is formed in a circular shape. That is, in this embodiment, the hot water flow path in the nozzle side introduction cylindrical portion 711, the nozzle side reduced diameter cylindrical portion 712, and the nozzle side downstream cylindrical portion 713 is configured by a hollow portion penetrating in the axial direction. .
  • Hot water introduced from the upstream end of the water passage forming member 6 is introduced into the nozzle side introduction cylindrical portion 711.
  • the nozzle-side reduced diameter cylindrical portion 712 has a narrower channel as the flow channel through which the hot water flows from the upstream side toward the downstream side, and increases the flow rate of the hot water.
  • the nozzle-side downstream tubular portion 713 is connected to a diffuser-side upstream connection tubular portion 721 of a diffuser member 72 described later.
  • a pair of positioning protrusions 714 and 714 that protrude from the outer surface in the left-right direction of the nozzle-side downstream tubular portion 713 are formed at the downstream end of the nozzle-side downstream tubular portion 713.
  • the pair of positioning protrusions 714 and 714 are formed to have a predetermined width, and from the outer surface of the nozzle-side downstream tubular portion 713, the nozzle-side downstream tubular portion 713. Projecting away from each other in the radial direction.
  • the pair of positioning protrusions 714 and 714 are restricted from moving in the circumferential direction by the pair of positioning portions 728 and 728 formed on the inner peripheral surface of the diffuser member 72.
  • the circumferential position is restricted.
  • the positioning portion 728 is a pair of positioning members when the nozzle member 71 is attached to the diffuser member 72 among the plurality of protruding pieces 727 that protrude from the inner peripheral surface of the diffuser member 72 and are spaced apart in the circumferential direction. It is comprised by a pair of protrusion piece 727,727 arrange
  • An O-ring engagement portion 715, a nozzle member side flange portion 716, and a pair of nozzle member side engagement portions 717 and 717 are formed at the upstream end portion of the nozzle member 71.
  • the O-ring locking portion 715 is formed slightly upward from the upstream end portion of the nozzle member 71.
  • An O-ring 715 a is disposed in the O-ring locking portion 715.
  • the nozzle member side flange portion 716 is formed adjacent to the downstream side of the O-ring locking portion 715, and on the outer peripheral surface of the nozzle member 71, the nozzle side introduction tubular portion 711 and the nozzle side reduced diameter tubular portion 712 are formed. Arranged between.
  • the nozzle member side flange portion 716 is formed to project from the outer peripheral surface of the nozzle member 71 in an annular shape in the radial direction of the nozzle member 71.
  • the pair of nozzle member side engaging portions 717 and 717 are formed at a nozzle member side extending portion 717 a extending upward from the upper surface of the nozzle member side flange portion 716 and an upper end portion of the nozzle member side extending portion 717 a.
  • Nozzle member side claw portion 717b Each of the pair of nozzle member side engaging portions 717 and 717 can be deformed to the center side in the radial direction of the water passage forming member 6 with an elastic return force.
  • the nozzle member side claw portion 717b can be engaged with and disengaged from a lower edge portion 726a of a pair of nozzle member attachment openings 726 and 726 described later.
  • the diffuser member 72 includes, in order from the upstream side to the downstream side, the diffuser-side upstream connection cylindrical portion 721, the diffuser-side upstream introduction cylindrical portion 722, and the upstream side to the downstream side.
  • a diffuser-side downstream-side diameter-enlarged cylindrical portion 723 whose flow path expands as it goes is formed.
  • the cross-sectional shape of the inner peripheral surface orthogonal to the flowing direction of the hot water in the diffuser side upstream connecting cylindrical portion 721, the diffuser side upstream introducing cylindrical portion 722, and the diffuser side downstream diameter expanding cylindrical portion 723 is formed in a circular shape. Is done.
  • the hot water flow paths in the diffuser side upstream connecting cylindrical portion 721, the diffuser side upstream introducing cylindrical portion 722, and the diffuser side downstream diameter expanding cylindrical portion 723 are hollow that penetrates in the axial direction. It consists of parts.
  • the nozzle side downstream cylindrical portion 713 of the nozzle member 71 is inserted into the diffuser side upstream connection cylindrical portion 721.
  • Hot water is introduced into the diffuser side upstream introduction cylindrical portion 722 so that the flow path is narrowed by the nozzle side reduced diameter cylindrical portion 712 of the nozzle member 71.
  • the diffuser side downstream diameter-expanding cylindrical portion 723 expands the hot water introduced from the diffuser side upstream side introduction cylindrical portion 722.
  • the diffuser side upstream connection tubular portion 721 includes a pair of orifice member mounting engaging portions 724 and 724 that can be engaged with and disengaged from the water passage forming member side air introduction hole 64 of the water passage forming member 6, and a pair of orifice sides Air introduction holes 725 and 725 and a pair of nozzle member attachment openings 726 and 726 are formed.
  • the pair of nozzle member side claw portions 717b and 717b of the nozzle member 71 are engaged with the lower edge portion 726a of the pair of nozzle member mounting openings 726 and 726.
  • the pair of nozzle member mounting openings 726 and 726 are formed by opening the peripheral surface of the diffuser member 72 in a rectangular shape and penetrating the pair of nozzle member side engaging portions 717 and 717 on the peripheral surface of the diffuser member 72. They are formed opposite to each other at corresponding positions.
  • the pair of orifice-side air introduction holes 725 and 725 are formed by opening the peripheral surface of the diffuser member 72 in a square shape and are provided in a pair spaced apart in the left-right direction X on the peripheral surface of the diffuser member 72.
  • the pair of orifice member mounting engagement portions 724 and 724 respectively include an orifice member mounting extension portion 724a extending upward from the lower edge of the orifice-side air introduction hole 725, and an orifice member mounting extension. And an orifice member attaching claw portion 724b formed at the upper end portion of the protruding portion 724a.
  • Each of the pair of orifice member mounting engaging portions 724 and 724 can be deformed to the center side in the radial direction of the water flow path forming member 6 with an elastic return force. As shown in FIGS.
  • the orifice member attaching claw portion 724 b has a water passage forming member-side air introduction hole of the water passage forming member 6 when the orifice member 7 is attached to the water passage forming member 6. It is possible to engage with and disengage from the edge 642a of the 64 inner surface openings 642.
  • the orifice member 7 configured as described above is disposed in the vicinity of the upstream end portion of the water passage forming member 6 and is configured to be detachable from the water passage forming member 6, so that the maintainability can be improved. Further, by attaching or detaching the orifice member 7, another orifice having a different size or number of orifice-side air introduction holes 725 in consideration of the amount of air to be introduced, the comfort of hot water, the amount of water to be saved, etc. Can be replaced with a member.
  • the orifice member attaching claw portion 724b is engaged with the edge portion 642a of the inner surface opening 642 of the water passage forming member side air introduction hole 64 of the water passage forming member 6 as shown in FIGS. It is possible to attach the orifice member 7 to the water passage forming member 6 simply by making it. Therefore, the orifice member 7 can be attached to the water passage forming member 6 using the air passage forming member side air introduction hole 64 of the water passage forming member 6, so that the engagement with the claw portion 724 b for attaching the orifice member is possible. It is not necessary to provide the part in the water passage forming member 6. Therefore, since it is not necessary to provide the engaging part which engages with the claw part 724b for attaching the orifice member, the cost required for the water passage forming member 6 can be reduced.
  • the orifice member 7 includes a nozzle member-side claw portion 717b of the nozzle member 71 in which the nozzle-side downstream tubular portion 713 of the nozzle member 71 is inserted into the diffuser-side upstream connection tubular portion 721 of the diffuser member 72. Are united by being engaged with and attached to the lower edge portion 726a of the nozzle member attachment opening 726 of the diffuser member 72.
  • the orifice member 7 is detachable from the water passage forming member 6 in the uppermost stream of the water passage forming member 6 in a united state in which the nozzle member 71 and the diffuser member 72 are integrated. Specifically, the orifice member 7 is a united state in which the nozzle member 71 and the diffuser member 72 are integrated, and the orifice member mounting claw portion 724b of the orifice member 7 has a water passage forming member side air introduction hole. 64 is engaged.
  • the advantage by having comprised the orifice member 7 by two members, the nozzle member 71 and the diffuser member 72, is demonstrated.
  • the number of holes to be formed is limited because the strength of the orifice member decreases as the number of holes increases.
  • the orifice member 7 disposed at the end on the most upstream side of the water passage forming member 6 may be damaged when the hose portion 11 is attached or removed.
  • the orifice member 7 is composed of two members, a nozzle member 71 and a diffuser member 72, and the nozzle member 71 is integrally configured to be detachable from the diffuser member 72.
  • a plurality of orifice-side air introduction holes 725 are provided on the diffuser member 72 side, and the nozzle member 71 is engaged with the diffuser member 72.
  • the plurality of orifice-side air introduction holes 725 are provided in the diffuser member 72, the vicinity of the plurality of orifice-side air introduction holes 725 of the diffuser member 72 is reinforced by the nozzle member 71 attached to the diffuser member 72.
  • the strength of the member 7 can be ensured.
  • the orifice member 7 by configuring the orifice member 7 with two members, the nozzle member 71 and the diffuser member 72, the strength of the orifice member 7 can be ensured even if a plurality of orifice-side air introduction holes 725 are provided. It is possible to sufficiently introduce air into the orifice member 7 through the plurality of orifice-side air introduction holes 725 while maintaining the above strength.
  • an external communication air introduction hole 301 as a second air introduction hole is formed between the cover member 3 and the two recesses 631 and 613 of the water passage forming member 6.
  • the external communication air introduction hole 301 communicates the water passage forming member side air introduction hole 64 and the outside of the cover member 3.
  • the external communication air introduction hole 301 is disposed on the front side F of the shower head 2.
  • the orifice-side air introduction hole 725, the water passage formation member-side air introduction hole 64, and the external communication air introduction hole 301 also serve as a drainage hole for discharging water that returns the inside of the water passage formation member 6 from the downstream side to the upstream side.
  • the hot water W supplied from the hose portion 11 to the shower head 2 is supplied to the water passage forming member 6 as shown in FIG. It is supplied and reaches the orifice member 7 attached to the inside of the water passage forming member 6.
  • the hot and cold water W that has reached the orifice member 7 flows into the nozzle member 71 of the orifice member 7.
  • the hot water W passing through the flow path having a reduced cross-sectional area in the nozzle member 71 reaches a diffuser member 72 arranged on the downstream side of the nozzle member 71 with an accelerated flow velocity.
  • the hot water W that has reached the diffuser member 72 expands by passing through a flow passage having a cross-sectional area enlarged (expanded diameter) in the diffuser member 72.
  • the orifice member 7 has an external communication air introduction hole 301 formed between the cover member 3 and the water passage forming member 6, and the passage of the water passage forming member 6. Air A outside the shower head 2 is sucked into the orifice member 7 through the water passage forming member side air introduction hole 64 and the orifice side air introduction hole 725 of the orifice member 7. Air A is introduced.
  • the air A introduced from the outside is mixed with the hot water W flowing inside the orifice member 7.
  • the hot water WA mixed with air is discharged from the plurality of water spray holes 41 of the water spray plate 4 through the water passage forming member 6 and the water spray plate adapter 5 (see FIG. 1).
  • the hot water from the faucet (not shown) supplied to the shower head 2 is stopped by operating a lever (not shown) for stopping the supply of hot water to the stop position.
  • the shower head 2 is hooked on the shower hook 13 as shown in FIG.
  • the external communication air introduction hole 301 that introduces air into the orifice member 7, the water passage formation member side air introduction hole 64 of the water passage formation member 6, and the orifice side air of the orifice member 7. Since the introduction hole 725 is disposed at the upstream end of the shower head 2, the introduction hole 725 is positioned at the lower end in the vertical direction Z when the shower head 2 is hooked on the shower hook 13. Therefore, the hot water remaining in the water spray plate adapter 5 and the water passage forming member 6 of the shower head 2 is likely to move downward due to gravity, and the water head pressure is easily applied by the hot water remaining in the water passage forming member 6.
  • the shower head 2 is tilted forward and is hooked on the shower hook 13, the hot water remaining in the shower head 2 easily moves to the front side of the shower head 2.
  • the external communication air introduction hole 301 is disposed on the front side of the shower head 2. Thereby, the hot water remaining in the shower head 2 can be easily discharged to the outside.
  • the shower head 2 according to the present embodiment described above has the following effects.
  • the shower head 2 according to the present embodiment has a cover member 3 and at least a part of the shower head 2 disposed inside the cover member 3 to form a water passage through which water flows and a water passage forming member-side air introduction hole 64.
  • the water passage forming member 6 is configured to be detachable. Therefore, the orifice member 7 can be easily attached and detached from the end portion side on the most upstream side of the water passage forming member 6.
  • attachment to the water flow path formation member 6 of the orifice member 7 becomes easy, a maintainability can be improved.
  • the orifice member 7 is configured to be detachable from the water passage forming member 6, the size of the orifice-side air introduction hole 725 is taken into consideration in consideration of the amount of air to be introduced, the comfort of hot water, the amount of water to be saved, and the like. It can be replaced with another orifice member having a different number of sheaths.
  • the orifice member 7 is configured as a unit by a nozzle member 71 disposed on the upstream side and narrowing the flow path, and a diffuser member 72 disposed on the downstream side and widening the flow path.
  • the orifice member 7 can be disposed on the bent water passage forming member 6 even if the water passage forming member 6 is bent.
  • the orifice member 7 has an orifice member attaching engagement portion 724 that can be engaged with and disengaged from the water passage forming member side air introduction hole 64. Therefore, the orifice member 7 can be attached to the water passage forming member 6 using the air passage forming member side air introduction hole 64 of the water passage forming member 6, so that the engagement with the claw portion 724 b for attaching the orifice member is possible. It is not necessary to provide the part in the water passage forming member 6. Therefore, since it is not necessary to provide the engaging part engaging with the claw part 724b for attaching the orifice member by using the air introduction hole 64 of the water passage forming member 6 of the water passage forming member 6, the water passage forming member 6 Manufacturing costs can be reduced.
  • the external communication air introduction hole 301 is formed between the cover member 3 and the water passage forming member 6 and communicates the water passage formation member side air introduction hole 64 and the outside of the cover member 3.
  • the water passage forming member-side air introduction hole 64 and the external communication air introduction hole 301 also serve as a drainage hole for discharging water that returns the inside of the water passage forming member 6 from the downstream side to the upstream side.
  • the external communication air introduction hole 301 is formed between the cover member 3 and the water passage forming member 6 and communicates the water passage formation member side air introduction hole 64 and the outside of the cover member 3.
  • the external communication air introduction hole 301 is disposed on the front side of the shower head 2.
  • the hot water remaining in the shower head 2 easily moves to the front side of the shower head 2. Therefore, by arranging the external communication air introduction hole 301 on the front side F of the shower head 2, the hot water remaining inside the shower head 2 can be easily discharged to the outside.
  • the present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
  • the water passage forming member 6 disposed inside the cover member 3 may be at least a part of the water passage forming member 6 or the whole water passage forming member 6.
  • the orifice member 7 (throttle member) is configured to be detachably disposed on the water passage forming member 6 of the shower head 2.
  • the present invention is not limited to this. For example, you may arrange
  • the external communication air introduction hole 301 is disposed on the front side F of the shower head 2, but the present invention is not limited to this.
  • the external communication air introduction holes 301 may be arranged on the rear side R of the shower head 2, or the external communication air introduction holes 301 may be arranged on both the front side F and the rear side R of the shower head 2.
  • the external communication air introduction hole 301 is arranged on the rear side R of the shower head 2, hot water is discharged from the rear side R of the shower head 2 through the external communication air introduction hole 301 to the outside. The discharged hot water is less noticeable and can improve the appearance.
  • the engaging part was comprised by the nail
  • the water flow path of the nozzle side reduced diameter cylindrical portion 712 is configured to restrict the flow path of water by reducing the diameter of one circular opening, but is not limited thereto.
  • it may be configured to narrow the water flow path by providing one opening having a small cross-sectional area, or by narrowing the water flow path by providing a plurality of openings having a small cross-sectional area. You may comprise as follows.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Nozzles (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

L'invention concerne une pomme de douche qui peut être maintenue avec une facilité accrue. La pomme de douche (2) comprend : un élément couvercle (3) ; un élément de formation de passage d'écoulement d'eau (6) dont au moins une partie est disposée à l'intérieur de l'élément couvercle (3), qui forme un passage d'écoulement d'eau à travers lequel l'eau s'écoule, et qui présente un premier trou d'introduction d'air (64) ; et un élément de rétrécissement (7) disposé à proximité de l'extrémité amont de l'élément de formation de passage d'écoulement d'eau (6) et rétrécissant un passage pour l'eau s'écoulant à travers l'intérieur de l'élément de formation de passage d'écoulement d'eau (6). L'élément de rétrécissement (7) est conçu pour pouvoir être monté sur l'élément de formation de passage d'écoulement d'eau (6) et pour pouvoir être retiré de ce dernier.
PCT/JP2017/044583 2017-01-16 2017-12-12 Pomme de douche et élément de rétrécissement WO2018131368A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-005374 2017-01-16
JP2017005374A JP2018114024A (ja) 2017-01-16 2017-01-16 シャワーヘッド及び絞り部材

Publications (1)

Publication Number Publication Date
WO2018131368A1 true WO2018131368A1 (fr) 2018-07-19

Family

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Application Number Title Priority Date Filing Date
PCT/JP2017/044583 WO2018131368A1 (fr) 2017-01-16 2017-12-12 Pomme de douche et élément de rétrécissement

Country Status (2)

Country Link
JP (1) JP2018114024A (fr)
WO (1) WO2018131368A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010246672A (ja) * 2009-04-14 2010-11-04 Tanaka Kinzoku Seisakusho:Kk シャワーヘッド
JP4632106B1 (ja) * 2010-02-12 2011-02-16 Ｔｏｔｏ株式会社 シャワー装置
JP2015070935A (ja) * 2013-10-03 2015-04-16 パナソニックＩｐマネジメント株式会社 シャワーヘッドおよびそれを備えたシャワー装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010246672A (ja) * 2009-04-14 2010-11-04 Tanaka Kinzoku Seisakusho:Kk シャワーヘッド
JP4632106B1 (ja) * 2010-02-12 2011-02-16 Ｔｏｔｏ株式会社 シャワー装置
JP2015070935A (ja) * 2013-10-03 2015-04-16 パナソニックＩｐマネジメント株式会社 シャワーヘッドおよびそれを備えたシャワー装置

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