WO2024117208A1 - Unit for upright and inverted attitudes - Google Patents

Unit for upright and inverted attitudes Download PDF

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Publication number
WO2024117208A1
WO2024117208A1 PCT/JP2023/042842 JP2023042842W WO2024117208A1 WO 2024117208 A1 WO2024117208 A1 WO 2024117208A1 JP 2023042842 W JP2023042842 W JP 2023042842W WO 2024117208 A1 WO2024117208 A1 WO 2024117208A1
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WO
WIPO (PCT)
Prior art keywords
inverted
switching valve
upright
inlet
cylinder
Prior art date
Application number
PCT/JP2023/042842
Other languages
French (fr)
Japanese (ja)
Inventor
宏太郎 藤原
信也 前田
Original Assignee
株式会社吉野工業所
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
Priority claimed from JP2023047074A external-priority patent/JP2024079531A/en
Application filed by 株式会社吉野工業所 filed Critical 株式会社吉野工業所
Publication of WO2024117208A1 publication Critical patent/WO2024117208A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle

Definitions

  • the present invention relates to an inverted stand unit.
  • This application claims priority to Japanese Patent Application No. 2022-191685 filed in Japan on November 30, 2022, and Japanese Patent Application No. 2023-047074 filed in Japan on March 23, 2023, the contents of which are incorporated herein by reference.
  • a configuration is known in which a normal/inverted unit that is attached to the cylinder portion of a dispenser includes an upright inlet that can introduce the content liquid in the container body into the content liquid inlet of the cylinder portion when the dispenser is upright, an inverted inlet that can introduce the content liquid in the container body into the content liquid inlet when the dispenser is inverted, an intermediate port that can communicate with the content liquid inlet, the upright inlet, and the inverted inlet, a first switching valve that abuts against the upright valve seat when the dispenser is upright to block communication between the inlet and the intermediate port, and a second switching valve that abuts against the inverted valve seat when the dispenser is inverted to block communication between the upright inlet and the intermediate port.
  • the present invention aims to provide an inverted container unit that can smoothly introduce the liquid contents in the container body into the cylinder section.
  • the first aspect of the present invention is a unit for upright and inverted position that is attached to a cylinder portion of a dispenser, the unit comprising: an upright inlet port that can introduce the content liquid in the container body into the content liquid inlet port of the cylinder portion when the dispenser is upright; an inverted inlet port that can introduce the content liquid in the container body into the content liquid inlet port when the dispenser is inverted; a relay port that can communicate with the content liquid inlet port, the upright inlet port, and the inverted inlet port; a first switching valve that abuts against an upright valve seat when the dispenser is upright, blocking communication between the inverted inlet port and the relay port;
  • the unit for normal inversion is provided with at least one of the following restricting parts: a second switching valve that contacts the inverted valve seat when the dispenser is inverted to block communication between the inlet when the dispenser is inverted and the relay port; a first restricting part that restricts the second switching valve from entering a first path along which the content liquid travels from the inlet when the dispenser is
  • the normal/inverted unit includes at least one of a first suppressing portion that suppresses the second switching valve from entering a first path along which the content liquid flows from the inlet in the normal position to the relay port when the dispenser is in the normal position, and a second suppressing portion that suppresses the first switching valve from entering a second path along which the content liquid flows from the inlet in the normal position to the relay port when the dispenser is in the inverted position.
  • the second aspect of the present invention is the inverted normal unit of the first aspect, further comprising an outer tube member that is fitted to the cylinder portion and has a lower end opening that serves as the upright inlet, a topped cylindrical covering portion that protrudes upward and covers the upright inlet from above on the inner surface of the outer tube member at the periphery of the opening of the upright inlet, a side opening that opens radially and connects the upright inlet to the inside of the outer tube member is formed on the peripheral wall of the covering portion, and the first preventing portion that prevents the second switching valve from entering the first path when the dispenser is upright protrudes upward from the top wall of the covering portion.
  • a side opening is formed in the peripheral wall of the covering portion that connects the inlet and the inside of the outer tube member when in the upright position, and the first preventing portion protrudes upward from the top wall of the covering portion.
  • the third aspect of the present invention is a unit for inverted rotation of the second aspect, in which the first restraining portion has a surface formed in a plate shape that faces the side where the side opening is open in the radial direction when viewed from above and below, the inlet portion of the first path is between the part of the inner peripheral surface of the outer tube member that faces the side opening and the surface of the first restraining portion in the radial direction and the side opening and the surface of the first restraining portion, and a guide portion is provided on the inside of the outer tube member to guide the second switching valve that is about to enter the inlet portion to the back side of the first restraining portion when the dispenser is upright.
  • a guide portion is provided on the inside of the outer tube member to guide the second switching valve, which is attempting to enter the inlet portion of the first path when the dispenser is upright, to the rear side of the first preventing portion. This makes it possible to reliably prevent the second switching valve from entering the first path.
  • the fourth aspect of the present invention is a unit for upright/inverted position according to any one of the first to third aspects, further comprising at least one of a first retraction recess for inserting the second switching valve when the dispenser is upright and releasing the second switching valve in a direction intersecting the opening direction of the inlet when upright with respect to the first path on the opposite side of the valve seat when upright and with respect to the first path, and a second retraction recess for inserting the first switching valve when the dispenser is inverted and releasing the first switching valve in a direction intersecting the opening direction of the inlet when upright with respect to the second path on the opposite side of the valve seat when upright and with respect to the second path.
  • the unit for normal and inverted position has at least one of a first retraction recess, which, when the dispenser is in the normal position, causes the second switching valve to enter and release the second switching valve, relative to the first path, on the opposite side of the valve seat in the upright position and in a direction intersecting the opening direction of the inlet in the upright position, and a second retraction recess, which, when the dispenser is inverted, causes the first switching valve to enter and release the first switching valve, relative to the second path, on the opposite side of the valve seat in the upright position and in a direction intersecting the opening direction of the inlet in the upright position.
  • the fifth aspect of the present invention is a normal/inverted unit according to the first aspect, in which the upright valve seat faces upward, the inverted valve seat faces downward, the at least one of the restricting parts is formed in a cylindrical shape extending in the vertical direction and faces at least one of the upright valve seat and the inverted valve seat in the vertical direction, and at least one of the first and second switching valves enters and is accommodated inside the at least one of the restricting parts when it moves away from the at least one of the valve seats in the vertical direction.
  • the first and second switching valves when at least one of the first and second switching valves moves away from the valve seat in the vertical direction, it enters and is accommodated inside the at least one of the stopper parts.
  • the sixth aspect of the present invention is a unit for inverted and normal rotation of the fifth aspect, in which the at least one of the restricting parts is the first restricting part and the second restricting part, the second restricting part is vertically opposed to the valve seat when in the normal position and is located at a position where the first switching valve enters inward and is accommodated when the dispenser is inverted, and is vertically opposed to the valve seat when in the inverted position and is located at a position where the second switching valve enters inward and is accommodated when the dispenser is in the normal position.
  • the at least one of the restricting parts is the first restricting part and the second restricting part
  • the second restricting part is provided at a position vertically facing the valve seat in the upright position and where the first switching valve enters and is accommodated when the dispenser is inverted
  • the first restricting part is provided at a position vertically facing the valve seat in the inverted position and where the second switching valve enters and is accommodated when the dispenser is in the upright position.
  • the restraining portion is provided at both of the aforementioned positions, the two parts provided at each of the aforementioned positions and equipped with the restraining portion can easily be made to be the same shape and size.
  • the liquid contents in the container body can be smoothly introduced into the cylinder portion.
  • FIG. 1 is a vertical sectional view of a dispenser having a normal/inverted unit shown as a first embodiment according to the present invention.
  • FIG. 2 is an enlarged view of the inverted stand unit of FIG. 1 .
  • 3 is a cross-sectional view taken along line III-III in FIG. 2.
  • FIG. 3 is a diagram showing the dispenser in FIG. 2 when inverted.
  • FIG. 11 is a vertical sectional view of a dispenser having an inverted normal unit shown as a second embodiment according to the present invention.
  • FIG. 6 is an enlarged view of the inverted stand unit of FIG. 5 .
  • FIG. 7 is a diagram showing the dispenser in FIG. 6 when inverted.
  • the normal/inverted unit 1 constitutes a part of a dispenser 10 including a pump 11 , a discharge head 12 , a push-down member 13 , and an attachment cap 14 .
  • the pump 11, the discharge head 12, the push-down member 13, and the mounting cap 14 will be described.
  • the pump 11 includes a cylinder portion 21, a piston portion 22, a first biasing member 23, and a lower valve body 24.
  • the liquid content in the container body W is introduced into the cylinder portion 21 through the liquid content inlet 21f due to a decrease in internal pressure caused by an increase in the internal volume of the cylinder portion 21, and the liquid content in the cylinder portion 21 is sent to the discharge head 12 due to an increase in internal pressure caused by a decrease in the internal volume of the cylinder portion 21.
  • the cylinder portion 21, the piston portion 22, and the first biasing member 23 are each formed in a cylindrical shape, and are disposed coaxially with a common axis.
  • the common axis is referred to as axis O
  • the ejection head 12 side along the axis O direction is referred to as the upper side
  • the inverted unit 1 side along the axis O direction is referred to as the lower side
  • the direction along the axis O is referred to as the up-down direction.
  • the direction intersecting the axis O when viewed from the up-down direction is referred to as the radial direction
  • the direction going around the axis O when viewed from the up-down direction is referred to as the circumferential direction.
  • the cylinder portion 21 is inserted into the mouth portion W1 of the container body W in which the liquid content is contained.
  • a flange portion 21a that protrudes radially outward is formed on the cylinder portion 21.
  • the flange portion 21a is placed on the upper opening edge of the mouth portion W1 via a packing.
  • a first connecting tube portion 21b that protrudes upward is formed on the flange portion 21a.
  • the first connecting tube portion 21b is disposed coaxially with the axis O.
  • the piston portion 22 comprises a sliding portion 22a having a topped cylindrical shape with an annular top wall, and a tubular portion 22b extending upward from the inner peripheral edge of the top wall of the sliding portion 22a.
  • the sliding portion 22a is fitted into the cylinder portion 21 so as to be able to slide up and down.
  • the tubular portion 22b is inserted into the first connecting tubular portion 21b, and the upper end portion of the tubular portion 22b protrudes upward from the first connecting tubular portion 21b.
  • the upper end of the first biasing member 23 is inserted into the sliding portion 22a and abuts against the underside of the top wall of the sliding portion 22a.
  • the lower end of the first biasing member 23 abuts against an upwardly facing step formed on the inner circumferential surface of the cylinder portion 21.
  • the first biasing member 23 is a coil spring that extends in the vertical direction.
  • the lower valve body 24 is, for example, a ball valve, and is provided within the lower end of the cylinder section 21.
  • a valve seat portion 21e is formed on the inner peripheral surface of the lower end of the cylinder section 21, protruding radially inward and tapering in diameter as it extends downward.
  • the lower end opening of the valve seat portion 21e serves as a liquid content inlet port 21f through which the liquid content in the container body W is introduced into the cylinder section 21.
  • the lower valve body 24 is placed on the upper surface of the valve seat portion 21e so that it can be freely separated upward.
  • the lower valve body 24 is a check valve that blocks communication between the inside of the container body W and the inside of the cylinder section 21 when the inside of the cylinder section 21 is pressurized, but allows communication between the inside of the container body W and the inside of the cylinder section 21 when the inside of the cylinder section 21 is depressurized.
  • the mounting cap 14 is attached to the mouth portion W1.
  • the mounting cap 14 is formed in a topped cylindrical shape with an annular top wall, and the first connecting tube portion 21b is inserted inside the top wall.
  • the flange portion 21a is sandwiched and fixed in the vertical direction between the underside of the top wall and the upper opening edge of the mouth portion W1.
  • the push-down member 13 includes a support portion 25 and a lever portion 26 .
  • the support portion 25 includes a topped cylindrical second connecting cylinder portion 25a fitted onto the outside of the first connecting cylinder portion 21b, and a protruding portion 25b protruding upward from the second connecting cylinder portion 25a.
  • the top wall of the second connecting cylinder portion 25a is formed in an annular shape, and the cylinder portion 22b of the piston portion 22 is inserted inside.
  • the upper end portion of the cylinder portion 22b protrudes upward from the second connecting cylinder portion 25a.
  • the protruding portion 25b is radially spaced from the axis O.
  • the rear side the side where the protruding portion 25b is away from the axis O
  • the opposite side will be referred to as the front side.
  • the rear portion of the lever portion 26 extends forward from the upper end of the protruding portion 25b and straddles the axis O in the front-to-rear direction.
  • the front portion of the lever portion 26 extends downward from the front end of the rear portion of the lever portion 26.
  • the lever portion 26 is provided so as to be rotatable in the up-down direction around the upper end of the protruding portion 25b.
  • the lever portion 26 has an engagement portion 26a that engages with the ejection head 12. When the lever portion 26 rotates downward around the upper end of the protruding portion 25b, the engagement portion 26a presses down on the ejection head 12.
  • a restricting member 31 is attached to the support portion 25 and is movable between a restricting position that restricts the downward rotation of the lever portion 26 and a permitting position that permits the downward rotation of the lever portion 26.
  • the ejection head 12 includes a main body portion 27 , a pressure accumulator valve 28 , and a second biasing member 29 .
  • the main body 27 includes a horizontal tube 12a extending in the radial direction and a vertical tube 12b extending downward from the horizontal tube 12a.
  • the horizontal tube 12a extends in the front-rear direction and penetrates the front part of the lever part 26 in the front-rear direction.
  • a discharge hole 12c opening forward is formed in the front end part of the horizontal tube 12a.
  • the vertical tube 12b extends downward from the rear part of the horizontal tube 12a.
  • the vertical tube 12b is fitted onto the cylindrical part 22b of the piston part 22.
  • the accumulator valve 28 is provided in the horizontal cylinder 12a and blocks communication between the inside of the vertical cylinder 12b and the discharge hole 12c.
  • the accumulator valve 28 is provided in the rear part of the horizontal cylinder 12a so as to be movable forward and backward, and is biased forward by a second biasing member 29.
  • the accumulator valve 28 moves rearward against the biasing force of the second biasing member 29. This allows communication between the inside of the vertical cylinder 12b and the discharge hole 12c, and the content liquid is discharged from the discharge hole 12c.
  • the normal inversion unit 1 is attached to the cylinder section 21.
  • the normal inversion unit 1 includes a first switching valve 61, a second switching valve 62, an outer cylinder member 63, an inner cylinder member 64, and a flow path forming member 65.
  • the outer cylinder member 63 and the inner cylinder member 64 are arranged coaxially with the axis O.
  • the flow path forming member 65 has an inverted inlet 65a that can introduce the liquid contents in the container body W into the liquid contents inlet 21f of the cylinder section 21 when the dispenser 10 is inverted.
  • the flow path forming member 65 is formed in a bottomed cylindrical shape and is fitted onto the lower end of the cylinder section 21.
  • a sealing tube section 65c that protrudes downward is formed on the outer periphery of the bottom wall section of the flow path forming member 65.
  • the outer cylinder member 63 is fitted to the cylinder portion 21 via a flow path forming member 65.
  • the outer cylinder member 63 has an upright inlet 63a through which the content liquid in the container body W can be introduced into the content liquid inlet 21f of the cylinder portion 21 when the dispenser 10 is upright, and an intake hole 63c through which the content liquid in the container body W can be introduced into the inverted inlet 65a when the dispenser 10 is inverted.
  • the upright inlet 63a and the intake hole 63c open into the container body W.
  • the intake hole 63c and the inverted inlet 65a are located higher than the upright inlet 63a when the dispenser 10 is in the upright position.
  • the outer tube member 63 is formed in a multi-stage tube shape that gradually reduces in diameter as it goes downward.
  • the outer tube member 63 is composed of a first outer tube portion 71, a second outer tube portion 72, a third outer tube portion 73, and a fourth outer tube portion 74, which are connected in this order from top to bottom.
  • the first outer cylinder portion 71 surrounds the outer peripheral surface of the flow path forming member 65 with a radial gap.
  • An annular gap extending in the circumferential direction is provided between the outer peripheral surface of the flow path forming member 65 and the inner peripheral surface of the first outer cylinder portion 71.
  • An inverted introduction port 65a opens in this gap.
  • the upper end opening of the first outer cylinder portion 71 serves as an intake hole 63c.
  • a seal cylinder portion 65c of the flow path forming member 65 is tightly fitted into the lower end portion of the first outer cylinder portion 71.
  • the first outer tube portion 71 may have only a lower end portion fitted onto the sealing tube portion 65c, no portion located above the lower end portion, and no intake hole 63c, and the inlet 65a when inverted may be opened into the container body W.
  • a relay port 64 c of the inner cylinder member 64 which will be described later, opens into the second outer cylinder portion 72 .
  • the lower end of the inner cylinder member 64 is tightly fitted into the upper end of the third outer cylinder portion 73.
  • the lower end opening of the third outer cylinder portion 73 serves as an upright position introduction port 63a that opens in the vertical direction.
  • the second switching valve 62 is movably housed within the third outer cylinder portion 73.
  • the second switching valve 62 is, for example, a ball valve.
  • the upper end of the suction cylinder 67 is fitted into the fourth outer cylinder portion 74.
  • the lower end of the suction cylinder 67 is located at the bottom of the container body W.
  • the upright inlet 63a communicates with the inside of the container body W through the suction cylinder 67.
  • a configuration may be adopted in which the fourth outer cylinder portion 74 is not provided and the upper end of the suction cylinder 67 is connected to, for example, the third outer cylinder portion 73.
  • the inner cylinder member 64 has a lower end opening 64a that communicates with the upright inlet 63a, an upper end opening 64b that communicates with the inlet 65a when inverted, and a relay port 64c that can communicate with the content liquid inlet 21f, the upright inlet 63a, and the inverted inlet 65a.
  • the relay port 64c is connected to the content liquid inlet 21f, the upright inlet 63a, and the inverted inlet 65a separately through different flow paths.
  • the inner cylinder member 64 is formed in a gourd shape with the vertical middle portion narrowed radially inward. The upper end of the inner cylinder member 64 is connected to the bottom wall of the flow path forming member 65.
  • the inner cylinder member 64 is composed of a first inner cylinder portion 76, a second inner cylinder portion 77, and a third inner cylinder portion 78, which are connected in this order from top to bottom.
  • the upper end opening of the first inner cylinder portion 76 constitutes the upper end opening 64b of the inner cylinder member 64.
  • An upright valve seat 64d facing upward is formed on the inner circumferential surface of the lower portion of the first inner cylinder portion 76.
  • the upright valve seat 64d extends radially inward as it extends downward.
  • the first switching valve 61 enters the second path L2 described later and abuts against the upright valve seat 64d to block communication between the inverted inlet 65a and the relay port 64c.
  • the first switching valve 61 is disposed above the upright valve seat 64d.
  • the first switching valve 61 is, for example, a ball valve, and abuts against the upright valve seat 64d in an upwardly releasable manner.
  • the second inner cylinder portion 77 constitutes the narrowed portion of the inner cylinder member 64.
  • the second inner cylinder portion 77 has multiple radially penetrating relay ports 64c formed at intervals in the circumferential direction.
  • the lower end opening of the third inner cylinder portion 78 constitutes the lower end opening 64a of the inner cylinder member 64.
  • the lower end of the third inner cylinder portion 78 is fitted into the upper end of the third outer cylinder portion 73 of the outer cylinder member 63.
  • An inverted valve seat 64e facing downward is formed on the inner circumferential surface of the upper part of the third inner cylinder portion 78.
  • the inverted valve seat 64e extends radially inward as it extends upward.
  • the second switching valve 62 is disposed below the inverted valve seat 64e.
  • the second switching valve 62 is disposed so as to be able to abut against the inverted valve seat 64e from below.
  • the second switching valve 62 enters a first path L1 (described later) and abuts against the inverted valve seat 64e to block communication between the upright inlet 63a and the relay port 64c.
  • the inverted valve seat 64e is formed with a sticking prevention portion 64f for preventing the second switching valve 62 from sticking.
  • the sticking prevention portion 64f may be a groove or rib radially provided on the inverted valve seat 64e, but may be changed as appropriate as long as it is an unevenness that can prevent the second switching valve 62 from sticking.
  • the sticking prevention portion 64f may not be formed on the inverted valve seat 64e.
  • the inner cylinder member 64 may be formed in a vertically symmetrical shape, and when the dispenser 10 is inverted, the sealing property between the second switching valve 62 and the inverted valve seat 64e is improved, and the communication between the upright inlet 63a and the relay port 64c can be reliably blocked.
  • a plug portion (topped cylindrical portion) 65b and a common flow path 68 are formed on the bottom wall of the flow path forming member 65.
  • the plug portion 65b is provided radially inward from the sealing tube portion 65c.
  • the plug portion 65b protrudes from the bottom wall portion of the flow path forming member 65 on both the up and down sides.
  • the portion of the plug portion 65b that protrudes downward from the bottom wall portion of the flow path forming member 65 is fitted into the upper end opening 64b of the inner tube member 64.
  • the plug portion 65b is formed in a topped tube shape extending in the up and down direction.
  • An inverted inlet 65a is formed in a portion of the peripheral wall of the plug portion 65b that is located below the upper end.
  • the inverted inlet 65a extends radially, penetrates the bottom wall portion of the flow path forming member 65 in the radial direction, opens on the inner peripheral surface of the plug portion 65b and the outer peripheral surface of the flow path forming member 65, and communicates with the intake hole 63c.
  • the common flow path 68 communicates between the content liquid inlet 21f and the relay port 64c of the cylinder portion 21.
  • the common flow path 68 vertically penetrates a portion of the bottom wall portion of the flow path forming member 65 that is located between the stopper portion 65b and the sealing tube portion 65c, and opens into the flow path forming member 65.
  • the common flow path 68 opens toward the upper end opening edge of the first inner tube portion 76.
  • the upper end of the first inner cylinder 76 is inserted into the sealing cylinder 65c.
  • An annular gap extending in the circumferential direction is provided between the inner peripheral surface of the sealing cylinder 65c and the outer peripheral surface of the first inner cylinder 76.
  • the lower surface of the bottom wall portion of the flow path forming member 65 is spaced upward from the upper end opening edge of the first inner cylinder 76.
  • the annular gap between the inner peripheral surface of the sealing cylinder 65c and the outer peripheral surface of the first inner cylinder 76 communicates with the common flow path 68.
  • the inverted unit 1 has at least one of a stopper 75 (first stopper) that stops the second switching valve 62 from entering the first path L1 along which the content liquid flows from the inlet 63a when the dispenser 10 is in the upright position to the relay port 64c when the dispenser 10 is in the upright position, and a stopper (second stopper) that stops the first switching valve 61 from entering the second path L2 along which the content liquid flows from the inlet 65a when the dispenser 10 is inverted to the relay port 64c when the dispenser 10 is inverted.
  • the latter inhibiting portion (second inhibiting portion) for the first switching valve 61 is provided in the plug portion 65b.
  • the latter inhibiting portion (second inhibiting portion) for the first switching valve 61 is a retraction recess 69 (second retraction recess) described later.
  • a cylindrical covering portion 51 with a top is formed on the inner surface of the outer tube member 63 at the periphery of the opening of the upright inlet 63a, protruding upward and covering the upright inlet 63a from above.
  • a side opening 51a is formed in the peripheral wall of the covering portion 51, opening in the radial direction and communicating the upright inlet 63a with the inside of the third outer tube portion 73.
  • the stopper portion 75 for the second switching valve 62 described above protrudes upward from the top wall of the covering portion 51.
  • the amount of protrusion of the suppression portion 75 (first suppression portion) upward from the top wall of the covering portion 51 is equal to the outer diameter of the second switching valve 62.
  • the suppression portion 75 is formed in a plate shape with a surface facing the radial side where the side opening 51a is open when viewed from the top-bottom direction.
  • the suppression portion 75 is located at the end of the top wall of the covering portion 51 on the radial side where the side opening 51a is open.
  • the surface of the suppression portion 75 is located on the same line as the opening surface of the side opening 51a. Because the suppression portion 75 is formed in a plate shape as described above, it is possible to reduce space constraints compared to, for example, a configuration in which the suppression portion 75 is formed in a cylindrical shape that extends continuously around the entire circumference.
  • the distance between the back surface of the suppression portion 75 and a portion of the inner circumferential surface of the third outer tube portion 73 that faces radially the back surface of the suppression portion 75 (first suppression portion) is larger than the outer diameter of the second changeover valve 62.
  • the distance between the back surface of the suppression portion 75 and a portion of the inner circumferential surface of the third outer tube portion 73 that faces radially the outer circumferential surface of the peripheral wall of the covering portion 51 is smaller than the outer diameter of the second changeover valve 62.
  • the second switching valve 62 When the dispenser 10 is in the upright position, the second switching valve 62 is located in a space (i.e., the retraction recess 90) surrounded by the back surface of the restraining portion 75, the upper surface of the top wall of the covering portion 51, and the inner surface of the third outer tube portion 73.
  • the distance between the portion of the inner surface of the third outer tube portion 73 that radially faces the side opening 51a and the surface of the restraining portion 75 (first restraining portion) and the side opening 51a and the surface of the restraining portion 75 is larger than the outer diameter of the second switching valve 62.
  • the guide portion 52 protrudes radially inward from a portion of the inner circumferential surface of the third outer tube portion 73 that faces radially the side opening 51a and the surface of the restraining portion 75 (first restraining portion).
  • the guide portion 52 extends upward from the lower end of the third outer tube portion 73.
  • the upper end of the guide portion 52 is located above the upper end of the restraining portion 75 and abuts against the lower end of the inner tube member 64 in the vertical direction.
  • the upper end of the guide portion 52 extends radially outward as it extends upward.
  • the guide portion 52 is formed in a plate shape with the front and back surfaces facing the circumferential direction. As shown in FIG. 3, the guide portion 52 is provided on both sides of the inner circumferential surface of the third outer tube portion 73 that sandwich the portion that faces radially the circumferential center of the side opening 51a and the restraining portion 75.
  • a retraction recess 90 (first retraction recess) that, when the dispenser 10 is in the upright position, causes the second switching valve 62 to enter and release the second switching valve 62 from the first path L1 on the opposite side of the inverted valve seat 64e and in a direction intersecting the opening direction of the inlet 63a when in the upright position
  • a retraction recess 69 (second retraction recess and second inhibition portion) that, when the dispenser 10 is in the upright position, causes the first switching valve 61 to enter and release the first switching valve 61 from the second path L2 on the opposite side of the inverted valve seat 64d and in a direction intersecting the opening direction of the inlet 65a when in the upright position.
  • the former retraction recess 90 (first retraction recess) for the second switching valve 62 may be configured, for example, such that the gap between the portion of the inner circumferential surface of the third outer tube 73 that faces the outer circumferential surface of the peripheral wall of the covering portion 51 in the radial direction and the outer circumferential surface of the peripheral wall of the covering portion 51 is made larger than the outer diameter of the second switching valve 62, and this gap is recessed below the upright inlet 63a.
  • the portion inside the plug portion 65b that is located above the inverted inlet 65a is the evacuation recess 69 (second evacuation recess and second prevention portion) into which the first switching valve 61 enters when the dispenser 10 is inverted.
  • the first switching valve 61 that enters the evacuation recess 69 leaves the second path L2 in the vertical direction, that is, in the direction that intersects with the opening direction of the inverted inlet 65a from the second path L2.
  • the content liquid pressurized in the cylinder portion 21 rises inside the tube portion 22b of the piston portion 22 and flows into the rear part of the horizontal tube 12a through the vertical tube 12b of the discharge head 12, so that the rear part of the horizontal tube 12a is pressurized.
  • the pressure accumulator valve 28 moves rearward against the biasing force of the second biasing member 29, thereby connecting the inside of the vertical tube 12b to the discharge hole 12c, and the content liquid is discharged from the discharge hole 12c.
  • the piston portion 22 rises together with the discharge head 12 due to the upward biasing force of the first biasing member 23 .
  • This main flow path includes the inside of the flow path forming member 65, the common flow path 68, a gap between the lower surface of the bottom wall portion of the flow path forming member 65 and the upper end opening edge of the first inner cylinder portion 76, a gap between the inner surface of the sealing cylinder portion 65c and the outer surface of the first inner cylinder portion 76, a gap between the inner surface of the second outer cylinder portion 72 and the outer surface of the first inner cylinder portion 76, and a gap between the inner surface of the second outer cylinder portion 72 and the outer surface of the second inner cylinder portion 77.
  • the first switching valve 61 When the main flow path is depressurized, the first switching valve 61 is in close contact with the upright valve seat 64d when the dispenser 10 is in the upright position, and communication between the inverted inlet 65a and the relay port 64c is blocked. Therefore, the third inner cylinder 78 and the third outer cylinder 73 are depressurized through the relay port 64c and the second inner cylinder 77.
  • the second switching valve 62 is separated from the first path L1 of the contents flowing from the inlet 63a to the relay port 64c when in the upright position by the prevention portion 75. This prevents the contents flowing through the first path L1 from coming into contact with the second switching valve 62.
  • the first switching valve 61 moves away from the upright valve seat 64d due to its own weight, and the inlet 65a and the relay port 64c are connected, and the second switching valve 62 moves in close contact with the inverted valve seat 64e due to its own weight, blocking the connection between the upright inlet 63a and the relay port 64c.
  • This inverted flow path includes the inside of the second inner tube portion 77, the inside of the first inner tube portion 76, the inside of the plug portion 65b, the inverted inlet 65a, and a gap between the outer peripheral surface of the flow path forming member 65 and the inner peripheral surface of the first outer tube portion 71.
  • the first switching valve 61 When the dispenser 10 is inverted, the first switching valve 61 enters the plug portion 65b, reaches the retraction recess 69 (second retraction recess and second stopper portion) in the plug portion 65b, and abuts against the top wall of the plug portion 65b. At this time, the first switching valve 61 is vertically separated from the inlet port 65a when inverted. As a result, the first switching valve 61 is vertically separated from the second path L2 of the content liquid that flows from the inlet port 65a when inverted to the relay port 64c, preventing the content liquid flowing through the second path L2 from coming into contact with the first switching valve 61.
  • the normal inversion unit 1 is provided with at least one of the inhibiting portion 75 (first inhibiting portion) that inhibits the second switching valve 62 from entering the first path L1 when the dispenser 10 is in the normal position, and the inhibiting portion (second inhibiting portion) that inhibits the first switching valve 61 from entering the second path L2 when the dispenser 10 is inverted.
  • the inhibiting portion (second inhibiting portion) is the retraction recess 69 (second retraction recess).
  • a side opening 51a is formed in the peripheral wall of the covering portion 51, which connects the inlet 63a to the inside of the outer tube member 63 when in the upright position, and a stopper portion 75 (first stopper portion) protrudes upward from the top wall of the covering portion 51.
  • the second switching valve 62 is positioned in the space surrounded by the back surface of the stopper portion 75, the upper surface of the top wall of the covering portion 51, and the inner peripheral surface of the outer tube member 63 (i.e., the retreat recess 90), thereby reliably preventing the second switching valve 62 from entering the first path L1.
  • a guide portion 52 is provided on the inside of the outer tube member 63 to guide the second switching valve 62, which is attempting to enter the inlet portion of the first path L1 when the dispenser 10 is upright, to the back side of the prevention portion 75 (first prevention portion). This makes it possible to reliably prevent the second switching valve 62 from entering the first path L1.
  • the normal/inverted unit 1 has at least one of the following retraction recesses: a retraction recess 90 (first retraction recess) that, when the dispenser 10 is in the normal position, causes the second switching valve 62 to enter and release the second switching valve 62 in a direction intersecting the opening direction of the inlet 63a when in the normal position, on the opposite side of the inverted valve seat 64e with respect to the first path L1; and a retraction recess 69 (second retraction recess and second inhibition portion) that, when the dispenser 10 is in the inverted position, causes the first switching valve 61 to enter and release the first switching valve 61 in a direction intersecting the opening direction of the inlet 65a when in the normal position, on the opposite side of the inverted valve seat 64d with respect to the second path L2.
  • a retraction recess 90 first retraction recess
  • the retraction recess 69 (second retraction recess) is an inhibition portion (second inhibition portion). This prevents at least one of the following when the liquid contents in the container body W are introduced into the liquid contents inlet 21f: when the dispenser 10 is upright, the liquid contents flowing through the first path L1 comes into contact with the second switching valve 62, and the second switching valve 62 moves with the liquid contents flow toward the inverted valve seat 64e; and when the dispenser 10 is inverted, the liquid contents flowing through the second path L2 comes into contact with the first switching valve 61, and the first switching valve 61 moves with the liquid contents flow toward the upright valve seat 64d.
  • the flow path forming member 65 in which a common flow path 68 is formed that connects the content liquid inlet 21f and the relay port 64c, is provided with a stopper portion (topped cylindrical portion) 65b, and the portion inside the stopper portion 65b that is located above the inverted inlet 65a is an evacuation recess 69 (second evacuation recess and second stopper portion) into which the first switching valve 61 enters when the dispenser 10 is inverted.
  • the normal/inverted unit 2 constitutes a part of a discharger 110 including a pump 111 , a discharge head 112 , and an attachment cap 14 .
  • a pump 111 a pump 111 , a discharge head 112 , and an attachment cap 14 .
  • the pump 111 and the ejection head 112 will be described.
  • the pump 111 includes a cylinder portion 21, a piston portion 22, a first biasing member 23, a lower valve body 24, a lower support tube 81, a stem 82, and a pressure accumulation mechanism 120.
  • the lower support cylinder 81 and the stem 82 are arranged coaxially with the axis O.
  • the lower support cylinder 81 is fitted into the upper end portion of the cylinder portion 21 .
  • the stem 82 includes a stem tube 82a and an upper support tube 82b.
  • the upper support tube 82b is formed in a double-cylinder shape arranged coaxially with the axis O.
  • the upper support tube 82b surrounds the stem tube 82a.
  • the upper end of the upper support tube 82b is located lower than the upper end of the stem tube 82a.
  • the upper support tube 82b is connected to the stem tube 82a via a plurality of connecting pieces 82c arranged in the circumferential direction.
  • the first biasing member 23 surrounds the stem tube 82a and is sandwiched in the vertical direction between the upper support tube 82b and the lower support tube 81. As a result, the first biasing member 23 supports the stem 82 in an upward biased state so as to be movable downward.
  • the pressure accumulating mechanism 120 includes a pressure accumulating cylinder 121, a pressure accumulating piston 122, a pressure accumulating valve body 123, and a third biasing member 124. The pressure accumulating mechanism 120 supplementarily pressurizes the inside of the cylinder portion 21 when the content liquid in the cylinder portion 21 is sent toward the discharge hole 12c by the downward movement of the piston portion 22.
  • the accumulator cylinder 121 is provided above the sliding portion 22a of the piston portion 22 and is formed in a cylindrical shape arranged coaxially with the axis O.
  • the accumulator cylinder 121 and the piston portion 22 are formed integrally.
  • the accumulator cylinder 121 penetrates the lower support tube 81 in the vertical direction.
  • the lower end opening of the accumulator cylinder 121 is located inside the cylinder portion 21.
  • the lower end edge of the accumulator cylinder 121 is located below the lower support tube 81 and is connected to the sliding portion 22a of the piston portion 22.
  • the upper end of the accumulator cylinder 121 is inserted between the stem tube 82a and the upper support tube 82b.
  • a vertical gap is provided between the upper end edge of the accumulator cylinder 121 and the connecting piece 82c.
  • the accumulator cylinder 121 and the piston portion 22 may be formed as separate bodies.
  • the accumulator piston 122 is disposed between the accumulator cylinder 121 and the stem tube 82a.
  • the accumulator piston 122 is disposed coaxially with the axis O and is formed in a multi-stage cylindrical shape with the outer diameter of the piston at the top being smaller.
  • the piston small diameter portion 122a located at the top is inserted into the stem tube 82a through the lower end opening of the stem tube 82a, and the piston large diameter portion 122b located at the bottom is fitted into the accumulator cylinder 121.
  • the piston large diameter portion 122b slides closely in the up and down direction on the inner peripheral surface of the accumulator cylinder 121.
  • the piston large diameter portion 122b is located above the locking projection 121a formed on the inner peripheral surface of the accumulator cylinder 121.
  • the accumulator valve body 123 is disposed across the stem cylinder 82a and the accumulator piston 122.
  • the accumulator valve body 123 includes a column body 123a and a seat portion 123b.
  • the columnar body 123a is formed in a cylindrical shape arranged coaxially with the axis O.
  • the upper end of the columnar body 123a is fitted and fixed in the stem tube 82a.
  • the pressure accumulator valve body 123 can move up and down integrally with the stem 82.
  • a communication groove 82d is formed in the inner peripheral surface of the stem tube 82a in a portion where the columnar body 123a is fitted.
  • the communication grooves 82d extend in the up-down direction and are formed at intervals in the circumferential direction.
  • the inside of the stem tube 82a is communicated in the up-down direction through the communication groove 82d.
  • a radial gap is provided between the outer peripheral surface of the columnar body 123a and the inner peripheral surface of the piston small diameter portion 122a.
  • the seating portion 123b protrudes radially outward from the vertical middle portion of the column body 123a.
  • the seating portion 123b is configured to be able to approach and separate from the lower end edge of the piston small diameter portion 122a as the seating portion 123b moves up and down relative to the pressure accumulator piston 122.
  • the seating portion 123b seats on the lower end edge of the piston small diameter portion 122a, thereby blocking communication between the inside of the pressure accumulator cylinder 121 and the inside of the stem tube 82a through the inside of the pressure accumulator piston 122.
  • the seating portion 123b moves downwardly away from the lower end edge of the piston small diameter portion 122a, thereby allowing communication between the inside of the pressure accumulator cylinder 121 and the inside of the stem tube 82a through the inside of the pressure accumulator piston 122.
  • the third biasing member 124 is a coil spring that extends in the vertical direction.
  • the third biasing member 124 is provided in the vertical gap between the stem tube 82a and the pressure accumulator piston 122 within the pressure accumulator cylinder 121, surrounding the lower end of the stem tube 82a and the piston small diameter portion 122a.
  • the third biasing member 124 biases the pressure accumulator piston 122 downward (towards the seating portion 63b).
  • the discharge head 112 does not have a pressure accumulator valve 28 or a second biasing member 29, and is fitted onto the upper end of the stem tube 82a, which is located above the upper support tube 82b.
  • the discharge hole 12c is connected to the inside of the stem tube 82a.
  • the stem 82, the pressure accumulator valve body 123, and the pressure accumulator piston 122 move down together with the discharge head 112.
  • the stem 82, the pressure accumulator valve body 123, and the pressure accumulator piston 122 move down relative to the pressure accumulator cylinder 121 by the vertical gap between the lower edge of the piston large diameter portion 122b and the locking projection 121a of the pressure accumulator cylinder 121.
  • the pressure accumulator piston 122 which has a smaller diameter than the piston portion 22, moves down (actuates) before the piston portion 22 (i.e., ahead of the piston portion 22). Therefore, the initial pressing force when lowering the discharge head 112 can be reduced.
  • the piston portion 22 After the lower end edge of the piston large diameter portion 122b comes into contact with the locking projection 121a of the pressure accumulator cylinder 121, the piston portion 22 also descends. As a result, the sliding portion 22a of the piston portion 22 slides on the inner circumferential surface of the cylinder portion 21, and the inside of the cylinder portion 21 is pressurized.
  • the stem 82 and the pressure accumulator valve body 123 descend relative to the pressure accumulator piston 122 against the biasing force of the third biasing member 124. As a result, the seating portion 123b moves downwardly away from the lower end edge of the piston small diameter portion 122a.
  • the content liquid in the cylinder portion 21 then flows into the stem tube 82a through the pressure accumulator cylinder 121, the gap between the pressure accumulator piston 122 and the pressure accumulator valve body 123, and the communication groove 82d.
  • the liquid then passes through the upper opening of the stem tube 82a and is discharged forward through the discharge hole 12c.
  • the stem 82 and the pressure accumulator valve body 123 are pushed up by the biasing force of the third biasing member 124, and the seating portion 123b comes into contact with the lower edge of the piston small diameter portion 122a.
  • the content liquid is supplied into the cylinder portion 21 from the content liquid inlet 21f.
  • the normal/inverted unit 2 includes a first switching valve 61, a second switching valve 62, an outer cylinder member 63, an inner cylinder member 64, a flow path forming member 65, a first connecting member 83, and a second connecting member 84.
  • the outer tube member 63 is configured by connecting the first outer tube portion 71, the fifth outer tube portion 163, and the fourth outer tube portion 74 in this order from top to bottom.
  • the relay port 64c of the inner tube member 64 opens inside the fifth outer tube portion 163.
  • the lower end opening of the fifth outer tube portion 163 serves as the upright position introduction port 63a that opens in the vertical direction.
  • a third connecting tube portion 163a that protrudes upward is formed on the periphery of the opening of the upright position introduction port 63a on the inner surface of the fifth outer tube portion 163.
  • a plug portion 165b and a common flow passage 68 are formed in the bottom wall portion of the flow passage forming member 65.
  • the plug portion 165b is provided radially inward from the sealing cylinder portion 65c.
  • the plug portion 165b does not protrude upward from the bottom wall portion of the flow passage forming member 65, but protrudes downward.
  • the first connecting member 83 is formed in a cylindrical shape extending in the vertical direction, and connects the flow path forming member 65 and the inner tube member 64 in the vertical direction.
  • the plug portion 165b of the flow path forming member 65 is tightly fitted into the upper end portion of the first connecting member 83.
  • the upper end portion of the first connecting member 83 is inserted into the sealing tube portion 65c.
  • the first connecting member 83 is provided across the lower end portion of the first outer tube portion 71 and the upper portion of the fifth outer tube portion 163.
  • Annular gaps extending in the circumferential direction are provided between the outer peripheral surface of the upper end portion of the first connecting member 83 and the inner peripheral surface of the sealing tube portion 65c, and between the outer peripheral surface of a portion of the first connecting member 83 located below the upper end portion and the inner peripheral surface of the fifth outer tube portion 163.
  • the upper end opening edge of the first connecting member 83 is spaced downward from the lower surface of the bottom wall portion of the flow path forming member 65, and the gap on the outer peripheral surface side of the first connecting member 83 communicates with the common flow path 68.
  • the upper end of the first inner cylinder portion 76 of the inner cylinder member 64 is tightly fitted into the lower end of the first connecting member 83.
  • the second connecting member 84 is formed in a cylindrical shape that extends vertically, and connects the inner tube member 64 and the third connecting tube portion 163a of the outer tube member 63 in the vertical direction.
  • the lower end of the third inner tube portion 78 of the inner tube member 64 is tightly fitted into the upper end of the second connecting member 84.
  • the third connecting tube portion 163a of the outer tube member 63 is tightly fitted into the lower end of the second connecting member 84.
  • a stopper portion 175a (first stopper portion) that stops the second switching valve 62 from entering the first path L1 along which the content liquid flows from the inlet 63a when the ejector 110 is in the upright position to the relay port 64c
  • a stopper portion 175b (second stopper portion) that stops the first switching valve 61 from entering the second path L2 along which the content liquid flows from the inlet 65a when the ejector 110 is inverted position to the relay port 64c.
  • the inhibiting portion 175a and the inhibiting portion 175b may be provided.
  • the inhibiting portion 175a (first inhibiting portion) and the inhibiting portion 175b (second inhibiting portion) are each formed in a cylindrical shape extending in the vertical direction and are arranged coaxially with the axis O.
  • the inhibiting portion 175a and the inhibiting portion 175b each extend continuously around the entire circumference. Note that the inhibiting portion 175a and the inhibiting portion 175b may each extend intermittently in the circumferential direction, or may have a C-shape when viewed from the vertical direction.
  • the inner side of the suppression portion 175a faces the inverted valve seat 64e in the vertical direction, and is provided at a position where the second switching valve 62 enters and is accommodated inside when the dispenser 110 is upright.
  • the suppression portion 175a is formed in a bottomed cylindrical shape.
  • the upper surface of the bottom wall of the suppression portion 175a supports the second switching valve 62 that enters and is accommodated inside the suppression portion 175a when the dispenser 110 is upright.
  • the outer peripheral edge of the upper surface of the bottom wall of the suppression portion 175a extends downward as it moves radially inward. Note that the inner peripheral surface of the peripheral wall of the suppression portion 175a may support the second switching valve 62 when the dispenser 110 is upright.
  • the size of the inner vertical direction of the suppression portion 175a is equal to the diameter of the second switching valve 62.
  • the inner side of the suppression portion 175b (second suppression portion) is vertically opposed to the valve seat 64d when in the upright position, and is provided at a position where the first switching valve 61 enters and is accommodated inside when the dispenser 110 is inverted.
  • the suppression portion 175b is formed in a topped cylindrical shape.
  • the lower surface of the top wall of the suppression portion 175b supports the first switching valve 61 that enters and is accommodated inside the suppression portion 175b when the dispenser 110 is inverted.
  • the outer peripheral edge of the lower surface of the top wall of the suppression portion 175b extends upward as it moves radially inward. Note that the inner peripheral surface of the peripheral wall of the suppression portion 175b may support the first switching valve 61 when the dispenser 110 is inverted.
  • the vertical size of the inner side of the suppression portion 175b is equal to the diameter of the first switching valve 61.
  • the restraining portion 175a (first restraining portion) is provided on the inside of the second connecting member 84.
  • the outer peripheral surface of the restraining portion 175a and the inner peripheral surface of the second connecting member 84 are connected via a first connecting piece 84a that is provided at intervals in the circumferential direction.
  • the restraining portion 175a is located below the upper end of the second connecting member 84.
  • the radial gap between the outer peripheral surface of the restraining portion 175a and the inner peripheral surface of the second connecting member 84 constitutes part of the first path L1.
  • the restraining portion 175b (second restraining portion) is provided on the inside of the first connecting member 83.
  • the outer peripheral surface of the restraining portion 175b and the inner peripheral surface of the first connecting member 83 are connected via second connecting pieces 83a that are provided at intervals in the circumferential direction.
  • the restraining portion 175b is located above the lower end of the first connecting member 83.
  • the radial gap between the outer peripheral surface of the restraining portion 175b and the inner peripheral surface of the first connecting member 83 constitutes part of the second path L2.
  • the restraining portion 175a (first restraining portion), the second connecting member 84, and the first connecting piece 84a constitute a single, integrally formed part.
  • the restraining portion 175b (second restraining portion), the first connecting member 83, and the second connecting piece 83a also constitute a single, integrally formed part.
  • the former part and the latter part are formed to the same shape and size, and are common parts that are assembled upside down.
  • the inverted normal unit 2 of this embodiment when at least one of the first switching valve 61 and the second switching valve 62 moves away from the valve seats 64d, 64e in the vertical direction, it enters and is accommodated inside the restricting portion 175b (second restricting portion), 175a (first restricting portion).
  • the restraining portion 175b (second restraining portion) and 175a (first restraining portion) are provided at a position opposite the valve seat 64d in the upright position in the vertical direction, where the first switching valve 61 advances inward and is accommodated when the dispenser 110 is inverted, and at a position opposite the valve seat 64e in the upright position in the vertical direction, where the second switching valve 62 advances inward and is accommodated when the dispenser 110 is in the upright position.
  • the covering portion 51 and the guide portion 52 do not need to be provided on the inside of the outer tube member 63 .
  • the retraction recess 69 (second retraction recess and second preventing portion) for the first switching valve 61 and the retraction recess 90 (first retraction recess) for the second switching valve 62 do not need to be provided.
  • the covering portion 51 may be configured to be formed in a topped cylindrical shape extending around the entire circumference and disposed coaxially with the axis O, a plurality of side openings 51a may be formed at intervals in the circumferential direction on the peripheral wall of the covering portion 51, and a suppressing portion 75 (first suppressing portion) for the second switching valve 62 may be configured to be formed in a cylindrical shape extending continuously around the entire circumference and disposed coaxially with the axis O on the outer circumferential edge portion of the top wall of the covering portion 51.
  • the second switching valve 62 is located on the upper surface of the top wall of the covering portion 51 inside the suppressing portion 75 and disposed on the axis O. In this case, when the dispenser 10 is inverted, it is possible to easily bring the second switching valve 62 into close contact with the inverted valve seat 64e.
  • the liquid contents in the container body can be smoothly introduced into the cylinder portion.

Landscapes

  • Closures For Containers (AREA)

Abstract

A unit (1) for upright and inverted attitudes according to the present invention comprises: an upright-attitude inlet (63a); an inverted-attitude inlet (65a); a relay port (64c); a first switching valve (61); a second switching valve (62); and a first prevention part (75) that prevents entry of the second switching valve (62) into a first path (L1) through which a content liquid flows from the upright-attitude inlet (63a) to the relay port when a discharge device (10) is in an upright attitude, and/or a second prevention part that prevents entry of the first switching valve (61) into a second path (L2) through which the content liquid flows from the inverted-attitude inlet (65a) to the relay port (64c) when the discharge device (10) is in an inverted attitude.

Description

正倒立用ユニットInverted unit
 本発明は、正倒立用ユニットに関する。本願は、2022年11月30日に日本に出願された特願2022-191685号と、2023年3月23日に日本に出願された特願2023-047074号とに基づき優先権を主張し、その内容をここに援用する。 The present invention relates to an inverted stand unit. This application claims priority to Japanese Patent Application No. 2022-191685 filed in Japan on November 30, 2022, and Japanese Patent Application No. 2023-047074 filed in Japan on March 23, 2023, the contents of which are incorporated herein by reference.
 吐出器のシリンダ部に取付けられる正倒立用ユニットとして、吐出器の正立時に、容器本体内の内容液をシリンダ部の内容液導入口に導入可能な正立時導入口と、吐出器の倒立時に、容器本体内の内容液を内容液導入口に導入可能な倒立時導入口と、内容液導入口、正立時導入口、および倒立時導入口に連通可能な中継口と、吐出器の正立時に、正立時弁座に当接して、倒立時導入口と中継口との連通を遮断する第1の切替弁と、吐出器の倒立時に、倒立時弁座に当接して、正立時導入口と中継口との連通を遮断する第2の切替弁と、を備えるという構成が、知られている。
 この正倒立用ユニットでは、吐出器の正立時に、容器本体内とシリンダ部の内容液導入口とが、正立時導入口および中継口を通して連通し、吐出器の倒立時に、容器本体内と内容液導入口とが、倒立時導入口および中継口を通して連通する。
A configuration is known in which a normal/inverted unit that is attached to the cylinder portion of a dispenser includes an upright inlet that can introduce the content liquid in the container body into the content liquid inlet of the cylinder portion when the dispenser is upright, an inverted inlet that can introduce the content liquid in the container body into the content liquid inlet when the dispenser is inverted, an intermediate port that can communicate with the content liquid inlet, the upright inlet, and the inverted inlet, a first switching valve that abuts against the upright valve seat when the dispenser is upright to block communication between the inlet and the intermediate port, and a second switching valve that abuts against the inverted valve seat when the dispenser is inverted to block communication between the upright inlet and the intermediate port.
In this inverted unit, when the dispenser is in the upright position, the inside of the container body and the content liquid inlet of the cylinder section are connected through the upright inlet and the relay port, and when the dispenser is inverted, the inside of the container body and the content liquid inlet are connected through the inverted inlet and the relay port.
日本国特開2017-47355号公報Japanese Patent Publication No. 2017-47355
 上記の正倒立用ユニットでは、吐出器の正立時に、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、第2の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近し、かつシリンダ部内の減圧が中継口を通して第2の切替弁に及ぼされる。これにより、第2の切替弁が、倒立時弁座に押し当てられる可能性がある。
 一方、吐出器の倒立時には、容器本体内の内容液が、内容液導入口に導入される際、第1の切替弁が、内容液の液流に乗って正立時弁座に向けて接近し、かつシリンダ部内の減圧が中継口を通して第1の切替弁に及ぼされる。これにより、第1の切替弁が、正立時弁座に押し当てられる可能性がある。
 以上より、容器本体内の内容液をシリンダ部内に円滑に導入することができない可能性がある。
In the above-mentioned normal/inverted unit, when the dispenser is in the normal position and the liquid content in the container body is introduced into the liquid content inlet of the cylinder, the second switching valve is carried by the liquid flow of the liquid content and approaches the inverted valve seat, and the reduced pressure in the cylinder is applied to the second switching valve through the relay port. This may cause the second switching valve to be pressed against the inverted valve seat.
On the other hand, when the dispenser is inverted, when the liquid content in the container body is introduced into the liquid content inlet, the first switching valve is carried by the liquid flow of the liquid content and approaches the upright valve seat, and the reduced pressure in the cylinder is applied to the first switching valve through the relay port. This may cause the first switching valve to be pressed against the upright valve seat.
For the above reasons, there is a possibility that the liquid content in the container body cannot be smoothly introduced into the cylinder portion.
 本発明は、容器本体内の内容液をシリンダ部内に円滑に導入することができる正倒立用ユニットを提供することを目的とする。 The present invention aims to provide an inverted container unit that can smoothly introduce the liquid contents in the container body into the cylinder section.
 本発明の第1態様は、吐出器のシリンダ部に取付けられる正倒立用ユニットであって、前記吐出器の正立時に、容器本体内の内容液を前記シリンダ部の内容液導入口に導入可能な正立時導入口と、前記吐出器の倒立時に、容器本体内の内容液を前記内容液導入口に導入可能な倒立時導入口と、前記内容液導入口、前記正立時導入口、および前記倒立時導入口に連通可能な中継口と、前記吐出器の正立時に、正立時弁座に当接して、前記倒立時導入口と前記中継口との連通を遮断する第1の切替弁と、前記吐出器の倒立時に、倒立時弁座に当接して、前記正立時導入口と前記中継口との連通を遮断する第2の切替弁と、前記吐出器の正立時に、内容液が前記正立時導入口から前記中継口に向かう第1経路に対して、前記第2の切替弁が進入するのを抑止する第1抑止部、および前記吐出器の倒立時に、内容液が前記倒立時導入口から前記中継口に向かう第2経路に対して、前記第1の切替弁が進入するのを抑止する第2抑止部のうち、少なくとも一方の抑止部と、を備えている、正倒立用ユニットである。 The first aspect of the present invention is a unit for upright and inverted position that is attached to a cylinder portion of a dispenser, the unit comprising: an upright inlet port that can introduce the content liquid in the container body into the content liquid inlet port of the cylinder portion when the dispenser is upright; an inverted inlet port that can introduce the content liquid in the container body into the content liquid inlet port when the dispenser is inverted; a relay port that can communicate with the content liquid inlet port, the upright inlet port, and the inverted inlet port; a first switching valve that abuts against an upright valve seat when the dispenser is upright, blocking communication between the inverted inlet port and the relay port; The unit for normal inversion is provided with at least one of the following restricting parts: a second switching valve that contacts the inverted valve seat when the dispenser is inverted to block communication between the inlet when the dispenser is inverted and the relay port; a first restricting part that restricts the second switching valve from entering a first path along which the content liquid travels from the inlet when the dispenser is inverted to the relay port when the dispenser is inverted; and a second restricting part that restricts the first switching valve from entering a second path along which the content liquid travels from the inlet when the dispenser is inverted to the relay port when the dispenser is inverted.
 この場合、正倒立用ユニットは、吐出器の正立時に、内容液が正立時導入口から中継口に向かう第1経路に対して、第2の切替弁が進入するのを抑止する第1抑止部、および吐出器の倒立時に、内容液が倒立時導入口から中継口に向かう第2経路に対して、第1の切替弁が進入するのを抑止する第2抑止部のうち、少なくとも一方の抑止部を備えている。これにより、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第1経路を流れる内容液が、第2の切替弁に接触して、第2の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第2経路を流れる内容液が、第1の切替弁に接触して、第1の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、のうち、少なくとも一方を防ぐことができる。
 これにより、内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第2の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって倒立時弁座に押し当てられること、および吐出器の倒立時に、第1の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって正立時弁座に押し当てられること、のうち、少なくとも一方を防ぐことが可能になり、容器本体内の内容液をシリンダ部内に円滑に導入することができる。
In this case, the normal/inverted unit includes at least one of a first suppressing portion that suppresses the second switching valve from entering a first path along which the content liquid flows from the inlet in the normal position to the relay port when the dispenser is in the normal position, and a second suppressing portion that suppresses the first switching valve from entering a second path along which the content liquid flows from the inlet in the normal position to the relay port when the dispenser is in the inverted position. This makes it possible to prevent at least one of the following when the content liquid in the container body is introduced into the content liquid inlet of the cylinder portion: when the dispenser is in the normal position, the content liquid flowing through the first path comes into contact with the second switching valve, and the second switching valve comes along with the flow of the content liquid and approaches the valve seat when the dispenser is in the normal position, and when the dispenser is inverted, the content liquid flowing through the second path comes into contact with the first switching valve, and the first switching valve comes along with the flow of the content liquid and approaches the valve seat when the dispenser is inverted.
This makes it possible to prevent at least one of the following when the content liquid is introduced into the content liquid inlet of the cylinder portion: when the dispenser is upright, the second switching valve being pressed against the inverted valve seat due to the reduced pressure in the cylinder portion exerted through the relay port, and when the dispenser is inverted, the first switching valve being pressed against the upright valve seat due to the reduced pressure in the cylinder portion exerted through the relay port, thereby enabling the content liquid in the container body to be smoothly introduced into the cylinder portion.
 本発明の第2態様は、前記シリンダ部に外装されるとともに、下端開口が前記正立時導入口とされた外筒部材をさらに備え、前記外筒部材の内面における前記正立時導入口の開口周縁部に、上方に向けて突出し、前記正立時導入口を上方から覆う有頂筒状の被覆部が形成され、前記被覆部の周壁には、径方向に開口し、前記正立時導入口と前記外筒部材内とを連通する側方開口が、形成され、前記吐出器の正立時に、前記第1経路に対して前記第2の切替弁が進入するのを抑止する前記第1抑止部が、前記被覆部の頂壁から上方に向けて突出している、前記第1態様の正倒立用ユニットである。 The second aspect of the present invention is the inverted normal unit of the first aspect, further comprising an outer tube member that is fitted to the cylinder portion and has a lower end opening that serves as the upright inlet, a topped cylindrical covering portion that protrudes upward and covers the upright inlet from above on the inner surface of the outer tube member at the periphery of the opening of the upright inlet, a side opening that opens radially and connects the upright inlet to the inside of the outer tube member is formed on the peripheral wall of the covering portion, and the first preventing portion that prevents the second switching valve from entering the first path when the dispenser is upright protrudes upward from the top wall of the covering portion.
 この場合、被覆部の周壁に、正立時導入口と外筒部材内とを連通する側方開口が形成され、第1抑止部が、被覆部の頂壁から上方に向けて突出している。これにより、吐出器の正立時に、第2の切替弁を、第1抑止部と、被覆部の頂壁の上面と、外筒部材の内周面と、で囲まれた空間に位置させる。これにより、第2の切替弁が前記第1経路に進入するのを確実に抑止することができる。 In this case, a side opening is formed in the peripheral wall of the covering portion that connects the inlet and the inside of the outer tube member when in the upright position, and the first preventing portion protrudes upward from the top wall of the covering portion. This allows the second switching valve to be positioned in a space surrounded by the first preventing portion, the upper surface of the top wall of the covering portion, and the inner peripheral surface of the outer tube member when the dispenser is in the upright position. This reliably prevents the second switching valve from entering the first path.
 本発明の第3態様は、前記第1抑止部は、上下方向から見て、表面が、径方向のうち、前記側方開口が開口している側を向く板状に形成され、前記外筒部材の内周面のうち、前記側方開口および前記第1抑止部の表面と径方向で対向する部分と、前記側方開口および前記第1抑止部の表面と、の間が、前記第1経路の入口部分とされ、前記外筒部材の内側には、前記吐出器の正立時に、前記入口部分に進入しようとした前記第2の切替弁を、前記第1抑止部の裏面側に導く案内部が、設けられている、前記第2態様の正倒立用ユニットである。 The third aspect of the present invention is a unit for inverted rotation of the second aspect, in which the first restraining portion has a surface formed in a plate shape that faces the side where the side opening is open in the radial direction when viewed from above and below, the inlet portion of the first path is between the part of the inner peripheral surface of the outer tube member that faces the side opening and the surface of the first restraining portion in the radial direction and the side opening and the surface of the first restraining portion, and a guide portion is provided on the inside of the outer tube member to guide the second switching valve that is about to enter the inlet portion to the back side of the first restraining portion when the dispenser is upright.
 この場合、外筒部材の内側に、吐出器の正立時に、前記第1経路の入口部分に進入しようとした第2の切替弁を、第1抑止部の裏面側に導く案内部が、設けられている。これにより、第2の切替弁が前記第1経路に進入するのを確実に抑止することができる。 In this case, a guide portion is provided on the inside of the outer tube member to guide the second switching valve, which is attempting to enter the inlet portion of the first path when the dispenser is upright, to the rear side of the first preventing portion. This makes it possible to reliably prevent the second switching valve from entering the first path.
 本発明の第4態様は、前記吐出器の正立時に、前記第2の切替弁を進入させて、前記第1経路に対して、前記倒立時弁座の反対側で、かつ前記正立時導入口の開口方向に交差する方向に、前記第2の切替弁を離す第1退避凹部、および前記吐出器の倒立時に、前記第1の切替弁を進入させて、前記第2経路に対して、前記正立時弁座の反対側で、かつ前記倒立時導入口の開口方向に交差する方向に、前記第1の切替弁を離す第2退避凹部のうち、少なくとも一方の退避凹部をさらに備えている、前記第1態様から前記第3態様のいずれか1つの正倒立用ユニットである。 The fourth aspect of the present invention is a unit for upright/inverted position according to any one of the first to third aspects, further comprising at least one of a first retraction recess for inserting the second switching valve when the dispenser is upright and releasing the second switching valve in a direction intersecting the opening direction of the inlet when upright with respect to the first path on the opposite side of the valve seat when upright and with respect to the first path, and a second retraction recess for inserting the first switching valve when the dispenser is inverted and releasing the first switching valve in a direction intersecting the opening direction of the inlet when upright with respect to the second path on the opposite side of the valve seat when upright and with respect to the second path.
 正倒立用ユニットは、吐出器の正立時に、第2の切替弁を進入させて、第1経路に対して、倒立時弁座の反対側で、かつ正立時導入口の開口方向に交差する方向に、第2の切替弁を離す第1退避凹部、および吐出器の倒立時に、第1の切替弁を進入させて、第2経路に対して、正立時弁座の反対側で、かつ倒立時導入口の開口方向に交差する方向に、第1の切替弁を離す第2退避凹部のうち、少なくとも一方の退避凹部を備えている。これにより、容器本体内の内容液が、内容液導入口に導入される際、吐出器の正立時に、第1経路を流れる内容液が、第2の切替弁に接触して、第2の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第2経路を流れる内容液が、第1の切替弁に接触して、第1の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、のうち、少なくとも一方を防ぐことができる。
 これにより、内容液が、内容液導入口に導入される際、吐出器の正立時に、第2の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって倒立時弁座に押し当てられること、および吐出器の倒立時に、第1の切替弁が、中継口を通して及ぼされるシリンダ部内の減圧によって正立時弁座に押し当てられること、のうち、少なくとも一方を防ぐことが可能になり、容器本体内の内容液をシリンダ部内に円滑に導入することができる。
The unit for normal and inverted position has at least one of a first retraction recess, which, when the dispenser is in the normal position, causes the second switching valve to enter and release the second switching valve, relative to the first path, on the opposite side of the valve seat in the upright position and in a direction intersecting the opening direction of the inlet in the upright position, and a second retraction recess, which, when the dispenser is inverted, causes the first switching valve to enter and release the first switching valve, relative to the second path, on the opposite side of the valve seat in the upright position and in a direction intersecting the opening direction of the inlet in the upright position. This prevents at least one of the following from occurring when the liquid contents in the container body are introduced into the liquid contents inlet: when the dispenser is in the upright position, the liquid contents flowing through the first path comes into contact with the second switching valve, causing the second switching valve to move along with the flow of the liquid contents toward the valve seat when inverted; and when the dispenser is inverted, the liquid contents flowing through the second path comes into contact with the first switching valve, causing the first switching valve to move along with the flow of the liquid contents toward the valve seat when in the upright position.
This makes it possible to prevent at least one of the following when the content liquid is introduced into the content liquid inlet: when the dispenser is upright, the second switching valve is pressed against the inverted valve seat due to the reduced pressure in the cylinder section exerted through the relay port, and when the dispenser is inverted, the first switching valve is pressed against the upright valve seat due to the reduced pressure in the cylinder section exerted through the relay port, thereby allowing the content liquid in the container body to be smoothly introduced into the cylinder section.
 本発明の第5態様は、前記正立時弁座は、上方を向き、前記倒立時弁座は、下方を向き、前記少なくとも一方の抑止部は、上下方向に延びる筒状に形成されるとともに、前記正立時弁座および前記倒立時弁座のうち、少なくとも一方の弁座と上下方向で対向し、前記第1の切替弁および前記第2の切替弁のうち、少なくとも一方の切替弁は、前記少なくとも一方の弁座から上下方向に離反したときに前記少なくとも一方の抑止部の内側に進入して収容されている、前記第1態様の正倒立用ユニットである。 The fifth aspect of the present invention is a normal/inverted unit according to the first aspect, in which the upright valve seat faces upward, the inverted valve seat faces downward, the at least one of the restricting parts is formed in a cylindrical shape extending in the vertical direction and faces at least one of the upright valve seat and the inverted valve seat in the vertical direction, and at least one of the first and second switching valves enters and is accommodated inside the at least one of the restricting parts when it moves away from the at least one of the valve seats in the vertical direction.
 この場合、第1の切替弁および第2の切替弁のうち、少なくとも一方の切替弁が、弁座から上下方向に離反したときに前記少なくとも一方の抑止部の内側に進入して収容される。これにより、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第1経路を流れる内容液が、第2の切替弁に接触して、第2の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第2経路を流れる内容液が、第1の切替弁に接触して、第1の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、のうち、少なくとも一方を確実に防ぐことができる。 In this case, when at least one of the first and second switching valves moves away from the valve seat in the vertical direction, it enters and is accommodated inside the at least one of the stopper parts. This reliably prevents at least one of the following when the liquid contents in the container body are introduced into the liquid contents inlet of the cylinder part: when the dispenser is upright, the liquid contents flowing through the first path comes into contact with the second switching valve, and the second switching valve rides on the liquid contents flow and approaches the valve seat when inverted; and when the dispenser is inverted, the liquid contents flowing through the second path comes into contact with the first switching valve, and the first switching valve rides on the liquid contents flow and approaches the valve seat when inverted.
 本発明の第6態様は、前記少なくとも一方の抑止部は、前記第1抑止部および前記第2抑止部であり、前記第2抑止部は、前記正立時弁座と上下方向で対向し、かつ前記吐出器の倒立時に前記第1の切替弁が内側に進入して収容される位置に設けられ、前記倒立時弁座と上下方向で対向し、かつ前記吐出器の正立時に前記第2の切替弁が内側に進入して収容される位置に設けられている、前記第5態様の正倒立用ユニットである。 The sixth aspect of the present invention is a unit for inverted and normal rotation of the fifth aspect, in which the at least one of the restricting parts is the first restricting part and the second restricting part, the second restricting part is vertically opposed to the valve seat when in the normal position and is located at a position where the first switching valve enters inward and is accommodated when the dispenser is inverted, and is vertically opposed to the valve seat when in the inverted position and is located at a position where the second switching valve enters inward and is accommodated when the dispenser is in the normal position.
 この場合、前記少なくとも一方の抑止部は、前記第1抑止部および前記第2抑止部であり、前記第2抑止部が、正立時弁座と上下方向で対向し、かつ吐出器の倒立時に第1の切替弁が内側に進入して収容される位置に設けられ、前記第1抑止部は、倒立時弁座と上下方向で対向し、かつ吐出器の正立時に第2の切替弁が内側に進入して収容される位置に設けられている。これにより、容器本体内の内容液が、シリンダ部の内容液導入口に導入される際、吐出器の正立時に、第1経路を流れる内容液が、第2の切替弁に接触して、第2の切替弁が、内容液の液流に乗って倒立時弁座に向けて接近すること、および吐出器の倒立時に、第2経路を流れる内容液が、第1の切替弁に接触して、第1の切替弁が、内容液の液流に乗って正立時弁座に向けて接近すること、の双方を確実に防ぐことができる。
 抑止部が、前述の位置の双方に設けられていることから、前述の位置のそれぞれに設けられ、かつ抑止部を備える2部品を容易に同一の形状で同一の大きさとすることができる。
In this case, the at least one of the restricting parts is the first restricting part and the second restricting part, the second restricting part is provided at a position vertically facing the valve seat in the upright position and where the first switching valve enters and is accommodated when the dispenser is inverted, and the first restricting part is provided at a position vertically facing the valve seat in the inverted position and where the second switching valve enters and is accommodated when the dispenser is in the upright position. This makes it possible to reliably prevent both the following from happening when the content liquid in the container body is introduced into the content liquid inlet of the cylinder part: the content liquid flowing through the first path contacts the second switching valve when the dispenser is in the upright position, and the second switching valve is carried by the flow of the content liquid and moves toward the inverted valve seat, and the content liquid flowing through the second path contacts the first switching valve when the dispenser is inverted, and the first switching valve is carried by the flow of the content liquid and moves toward the upright valve seat.
Since the restraining portion is provided at both of the aforementioned positions, the two parts provided at each of the aforementioned positions and equipped with the restraining portion can easily be made to be the same shape and size.
 本発明によれば、容器本体内の内容液をシリンダ部内に円滑に導入することができる。 According to the present invention, the liquid contents in the container body can be smoothly introduced into the cylinder portion.
本発明に係る第1実施形態として示した正倒立用ユニットを有する吐出器の縦断面図である。1 is a vertical sectional view of a dispenser having a normal/inverted unit shown as a first embodiment according to the present invention. 図1の正倒立用ユニットの拡大図である。FIG. 2 is an enlarged view of the inverted stand unit of FIG. 1 . 図2のIII-III線矢視断面図である。3 is a cross-sectional view taken along line III-III in FIG. 2. 図2において吐出器の倒立時を示す図である。FIG. 3 is a diagram showing the dispenser in FIG. 2 when inverted. 本発明に係る第2実施形態として示した正倒立用ユニットを有する吐出器の縦断面図である。FIG. 11 is a vertical sectional view of a dispenser having an inverted normal unit shown as a second embodiment according to the present invention. 図5の正倒立用ユニットの拡大図である。FIG. 6 is an enlarged view of the inverted stand unit of FIG. 5 . 図6において吐出器の倒立時を示す図である。FIG. 7 is a diagram showing the dispenser in FIG. 6 when inverted.
(第1実施形態)
 以下、図面を参照し、本発明の第1実施形態に係る正倒立用ユニットを説明する。
 図1に示されるように、正倒立用ユニット1は、ポンプ11と、吐出ヘッド12と、押下部材13と、装着キャップ14と、を備える吐出器10の一部を構成する。
 まず、ポンプ11、吐出ヘッド12、押下部材13、および装着キャップ14について説明する。
First Embodiment
Hereinafter, an inverted stand unit according to a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1 , the normal/inverted unit 1 constitutes a part of a dispenser 10 including a pump 11 , a discharge head 12 , a push-down member 13 , and an attachment cap 14 .
First, the pump 11, the discharge head 12, the push-down member 13, and the mounting cap 14 will be described.
 ポンプ11は、シリンダ部21と、ピストン部22と、第1付勢部材23と、下部弁体24と、を備える。シリンダ部21の内容積の増加による内圧減少により、容器本体W内の内容液が、内容液導入口21fを通してシリンダ部21内に導入されるとともに、シリンダ部21の内容積の減少による内圧上昇により、シリンダ部21内の内容液を吐出ヘッド12に送り出す。 The pump 11 includes a cylinder portion 21, a piston portion 22, a first biasing member 23, and a lower valve body 24. The liquid content in the container body W is introduced into the cylinder portion 21 through the liquid content inlet 21f due to a decrease in internal pressure caused by an increase in the internal volume of the cylinder portion 21, and the liquid content in the cylinder portion 21 is sent to the discharge head 12 due to an increase in internal pressure caused by a decrease in the internal volume of the cylinder portion 21.
 シリンダ部21、ピストン部22、および第1付勢部材23は、それぞれ、筒状に形成されるとともに、共通軸と同軸に配設されている。
 以下、前記共通軸を軸線Oといい、軸線O方向に沿って吐出ヘッド12側を上側といい、軸線O方向に沿って正倒立用ユニット1側を下側といい、軸線Oに沿う方向を上下方向という。上下方向から見て軸線Oに交差する方向を径方向といい、上下方向から見て軸線O回りに周回する方向を周方向という。
The cylinder portion 21, the piston portion 22, and the first biasing member 23 are each formed in a cylindrical shape, and are disposed coaxially with a common axis.
Hereinafter, the common axis is referred to as axis O, the ejection head 12 side along the axis O direction is referred to as the upper side, the inverted unit 1 side along the axis O direction is referred to as the lower side, and the direction along the axis O is referred to as the up-down direction. The direction intersecting the axis O when viewed from the up-down direction is referred to as the radial direction, and the direction going around the axis O when viewed from the up-down direction is referred to as the circumferential direction.
 シリンダ部21は、内容液が収容される容器本体Wの口部W1内に挿入される。シリンダ部21に、径方向の外側に向けて突出したフランジ部21aが、形成されている。フランジ部21aは、口部W1の上端開口縁にパッキンを介して載置される。フランジ部21aに、上方に向けて突出した第1連結筒部21bが、形成されている。第1連結筒部21bは、軸線Oと同軸に配設されている。 The cylinder portion 21 is inserted into the mouth portion W1 of the container body W in which the liquid content is contained. A flange portion 21a that protrudes radially outward is formed on the cylinder portion 21. The flange portion 21a is placed on the upper opening edge of the mouth portion W1 via a packing. A first connecting tube portion 21b that protrudes upward is formed on the flange portion 21a. The first connecting tube portion 21b is disposed coaxially with the axis O.
 ピストン部22は、環状の頂壁を有する有頂筒状の摺動部22aと、摺動部22aの頂壁の内周縁部から上方に向けて延びる筒部22bと、を備えている。摺動部22aは、シリンダ部21内に上下摺動可能に嵌合されている。筒部22bは、第1連結筒部21bに挿入され、筒部22bの上端部は、第1連結筒部21bから上方に突出している。 The piston portion 22 comprises a sliding portion 22a having a topped cylindrical shape with an annular top wall, and a tubular portion 22b extending upward from the inner peripheral edge of the top wall of the sliding portion 22a. The sliding portion 22a is fitted into the cylinder portion 21 so as to be able to slide up and down. The tubular portion 22b is inserted into the first connecting tubular portion 21b, and the upper end portion of the tubular portion 22b protrudes upward from the first connecting tubular portion 21b.
 第1付勢部材23の上端部は、摺動部22a内に挿入され、摺動部22aの頂壁の下面に当接している。第1付勢部材23の下端部は、シリンダ部21の内周面に形成された上方を向く段部に当接している。第1付勢部材23は、上下方向に延びるコイルばねとなっている。 The upper end of the first biasing member 23 is inserted into the sliding portion 22a and abuts against the underside of the top wall of the sliding portion 22a. The lower end of the first biasing member 23 abuts against an upwardly facing step formed on the inner circumferential surface of the cylinder portion 21. The first biasing member 23 is a coil spring that extends in the vertical direction.
 下部弁体24は、例えばボール弁とされ、シリンダ部21の下端部内に設けられている。シリンダ部21の下端部の内周面に、径方向の内側に向けて突出し、下方に向かうに従い縮径した弁座部21eが、形成されている。弁座部21eの下端開口は、容器本体W内の内容液がシリンダ部21内に導入される内容液導入口21fとなっている。弁座部21eの上面に、下部弁体24が、上方に向けて離反自在に載置されている。下部弁体24は、シリンダ部21内の加圧時に容器本体W内とシリンダ部21内との連通を遮断する一方、シリンダ部21内の減圧時に容器本体W内とシリンダ部21内とを連通させる逆止弁である。 The lower valve body 24 is, for example, a ball valve, and is provided within the lower end of the cylinder section 21. A valve seat portion 21e is formed on the inner peripheral surface of the lower end of the cylinder section 21, protruding radially inward and tapering in diameter as it extends downward. The lower end opening of the valve seat portion 21e serves as a liquid content inlet port 21f through which the liquid content in the container body W is introduced into the cylinder section 21. The lower valve body 24 is placed on the upper surface of the valve seat portion 21e so that it can be freely separated upward. The lower valve body 24 is a check valve that blocks communication between the inside of the container body W and the inside of the cylinder section 21 when the inside of the cylinder section 21 is pressurized, but allows communication between the inside of the container body W and the inside of the cylinder section 21 when the inside of the cylinder section 21 is depressurized.
 装着キャップ14は、口部W1に装着される。装着キャップ14は、環状の頂壁を有する有頂筒状に形成され、頂壁の内側に、第1連結筒部21bが挿入されている。頂壁の下面と口部W1の上端開口縁とにより、フランジ部21aが、上下方向に挟まれて固定されている。 The mounting cap 14 is attached to the mouth portion W1. The mounting cap 14 is formed in a topped cylindrical shape with an annular top wall, and the first connecting tube portion 21b is inserted inside the top wall. The flange portion 21a is sandwiched and fixed in the vertical direction between the underside of the top wall and the upper opening edge of the mouth portion W1.
 押下部材13は、支持部25と、レバー部26と、を備えている。
 支持部25は、第1連結筒部21bに外嵌された有頂筒状の第2連結筒部25aと、第2連結筒部25aから上方に向けて突出した突出部25bと、を備えている。第2連結筒部25aの頂壁は、環状に形成され、内側にピストン部22の筒部22bが挿入されている。筒部22bの上端部は、第2連結筒部25aから上方に突出している。突出部25bは、軸線Oから径方向に離れている。
 以下、径方向のうち、突出部25bが軸線Oから離れている側を後側といい、これとは逆側を前側という。
 レバー部26の後部は、突出部25bの上端部から前方に向けて延び、軸線Oを前後方向に跨いでいる。レバー部26の前部は、レバー部26の後部の前端部から下方に向けて延びている。レバー部26は、突出部25bの上端部回りに上下方向に回転可能に設けられている。レバー部26は、吐出ヘッド12に係合する係合部26aを有する。レバー部26が、突出部25bの上端部回りに下方に向けて回転する際、係合部26aが、吐出ヘッド12を押下する。
The push-down member 13 includes a support portion 25 and a lever portion 26 .
The support portion 25 includes a topped cylindrical second connecting cylinder portion 25a fitted onto the outside of the first connecting cylinder portion 21b, and a protruding portion 25b protruding upward from the second connecting cylinder portion 25a. The top wall of the second connecting cylinder portion 25a is formed in an annular shape, and the cylinder portion 22b of the piston portion 22 is inserted inside. The upper end portion of the cylinder portion 22b protrudes upward from the second connecting cylinder portion 25a. The protruding portion 25b is radially spaced from the axis O.
Hereinafter, in the radial direction, the side where the protruding portion 25b is away from the axis O will be referred to as the rear side, and the opposite side will be referred to as the front side.
The rear portion of the lever portion 26 extends forward from the upper end of the protruding portion 25b and straddles the axis O in the front-to-rear direction. The front portion of the lever portion 26 extends downward from the front end of the rear portion of the lever portion 26. The lever portion 26 is provided so as to be rotatable in the up-down direction around the upper end of the protruding portion 25b. The lever portion 26 has an engagement portion 26a that engages with the ejection head 12. When the lever portion 26 rotates downward around the upper end of the protruding portion 25b, the engagement portion 26a presses down on the ejection head 12.
 支持部25には、レバー部26の下方に向けた回転を規制する規制位置と、レバー部26の下方に向けた回転を許容する許容位置と、の間を移動可能に設けられた規制部材31が、取付けられている。 A restricting member 31 is attached to the support portion 25 and is movable between a restricting position that restricts the downward rotation of the lever portion 26 and a permitting position that permits the downward rotation of the lever portion 26.
 吐出ヘッド12は、本体部27と、蓄圧弁28と、第2付勢部材29と、を備えている。
 本体部27は、径方向に延びる横筒12aと、横筒12aから下方に向けて延びる縦筒12bと、を備えている。横筒12aは、前後方向に延び、レバー部26の前部を前後方向に貫いている。横筒12aの前端部に、前方に向けて開口した吐出孔12cが、形成されている。縦筒12bは、横筒12aの後部から下方に向けて延びている。縦筒12bは、ピストン部22の筒部22bに外嵌されている。
 蓄圧弁28は、横筒12a内に設けられ、縦筒12b内と吐出孔12cとの連通を遮断する。蓄圧弁28は、横筒12aの後部内に前後動可能に設けられ、第2付勢部材29により前方に向けて付勢されている。横筒12aの後部の内圧が所定値を超えたときに、蓄圧弁28が、第2付勢部材29の付勢力に抗して後方に向けて移動する。これにより、縦筒12b内と吐出孔12cとが連通し、内容液が吐出孔12cから吐出される。
The ejection head 12 includes a main body portion 27 , a pressure accumulator valve 28 , and a second biasing member 29 .
The main body 27 includes a horizontal tube 12a extending in the radial direction and a vertical tube 12b extending downward from the horizontal tube 12a. The horizontal tube 12a extends in the front-rear direction and penetrates the front part of the lever part 26 in the front-rear direction. A discharge hole 12c opening forward is formed in the front end part of the horizontal tube 12a. The vertical tube 12b extends downward from the rear part of the horizontal tube 12a. The vertical tube 12b is fitted onto the cylindrical part 22b of the piston part 22.
The accumulator valve 28 is provided in the horizontal cylinder 12a and blocks communication between the inside of the vertical cylinder 12b and the discharge hole 12c. The accumulator valve 28 is provided in the rear part of the horizontal cylinder 12a so as to be movable forward and backward, and is biased forward by a second biasing member 29. When the internal pressure in the rear part of the horizontal cylinder 12a exceeds a predetermined value, the accumulator valve 28 moves rearward against the biasing force of the second biasing member 29. This allows communication between the inside of the vertical cylinder 12b and the discharge hole 12c, and the content liquid is discharged from the discharge hole 12c.
 次に、正倒立用ユニット1について説明する。 Next, we will explain the inverted stand unit 1.
 正倒立用ユニット1は、シリンダ部21に取付けられる。正倒立用ユニット1は、第1の切替弁61と、第2の切替弁62と、外筒部材63と、内筒部材64と、流路形成部材65と、を備えている。外筒部材63、および内筒部材64は、軸線Oと同軸に配設されている。 The normal inversion unit 1 is attached to the cylinder section 21. The normal inversion unit 1 includes a first switching valve 61, a second switching valve 62, an outer cylinder member 63, an inner cylinder member 64, and a flow path forming member 65. The outer cylinder member 63 and the inner cylinder member 64 are arranged coaxially with the axis O.
 流路形成部材65は、吐出器10の倒立時に容器本体W内の内容液をシリンダ部21の内容液導入口21fに導入可能な倒立時導入口65aを有する。流路形成部材65は、有底筒状に形成され、シリンダ部21の下端部に外嵌されている。流路形成部材65の底壁部の外周縁部に、下方に向けて突出したシール筒部65cが、形成されている。 The flow path forming member 65 has an inverted inlet 65a that can introduce the liquid contents in the container body W into the liquid contents inlet 21f of the cylinder section 21 when the dispenser 10 is inverted. The flow path forming member 65 is formed in a bottomed cylindrical shape and is fitted onto the lower end of the cylinder section 21. A sealing tube section 65c that protrudes downward is formed on the outer periphery of the bottom wall section of the flow path forming member 65.
 外筒部材63は、流路形成部材65を介してシリンダ部21に外装されている。外筒部材63は、吐出器10の正立時に容器本体W内の内容液をシリンダ部21の内容液導入口21fに導入可能な正立時導入口63aと、吐出器10の倒立時に容器本体W内の内容液を倒立時導入口65aに導入可能な取込孔63cと、を有する。
 正立時導入口63a、および取込孔63cは、容器本体W内に開口する。取込孔63cおよび倒立時導入口65aは、吐出器10の正立時に、正立時導入口63aよりも上方に位置している。
The outer cylinder member 63 is fitted to the cylinder portion 21 via a flow path forming member 65. The outer cylinder member 63 has an upright inlet 63a through which the content liquid in the container body W can be introduced into the content liquid inlet 21f of the cylinder portion 21 when the dispenser 10 is upright, and an intake hole 63c through which the content liquid in the container body W can be introduced into the inverted inlet 65a when the dispenser 10 is inverted.
The upright inlet 63a and the intake hole 63c open into the container body W. The intake hole 63c and the inverted inlet 65a are located higher than the upright inlet 63a when the dispenser 10 is in the upright position.
 外筒部材63は、下方に向かうに従って段階的に縮径する多段筒状に形成されている。外筒部材63は、上方から下方に向けて、第1外筒部71と、第2外筒部72と、第3外筒部73と、第4外筒部74と、がこの順に連ねられて構成されている。 The outer tube member 63 is formed in a multi-stage tube shape that gradually reduces in diameter as it goes downward. The outer tube member 63 is composed of a first outer tube portion 71, a second outer tube portion 72, a third outer tube portion 73, and a fourth outer tube portion 74, which are connected in this order from top to bottom.
 第1外筒部71は、流路形成部材65の外周面を、径方向の隙間をあけた状態で囲っている。流路形成部材65の外周面と、第1外筒部71の内周面との間には、周方向に延びる環状の隙間が、設けられている。この隙間に、倒立時導入口65aが、開口している。第1外筒部71の上端開口が、取込孔63cとなっている。第1外筒部71の下端部内に、流路形成部材65のシール筒部65cが、密に嵌合されている。
 なお、第1外筒部71として、シール筒部65cに外嵌された下端部のみを有し、下端部より上方に位置する部分、および取込孔63cを有さず、倒立時導入口65aを容器本体W内に開口させるという構成を採用してもよい。
The first outer cylinder portion 71 surrounds the outer peripheral surface of the flow path forming member 65 with a radial gap. An annular gap extending in the circumferential direction is provided between the outer peripheral surface of the flow path forming member 65 and the inner peripheral surface of the first outer cylinder portion 71. An inverted introduction port 65a opens in this gap. The upper end opening of the first outer cylinder portion 71 serves as an intake hole 63c. A seal cylinder portion 65c of the flow path forming member 65 is tightly fitted into the lower end portion of the first outer cylinder portion 71.
In addition, the first outer tube portion 71 may have only a lower end portion fitted onto the sealing tube portion 65c, no portion located above the lower end portion, and no intake hole 63c, and the inlet 65a when inverted may be opened into the container body W.
 第2外筒部72内に、後述する内筒部材64の中継口64cが、開口している。
 第3外筒部73の上端部内に、内筒部材64の下端部が、密に嵌合されている。第3外筒部73の下端開口が、上下方向に開口した正立時導入口63aとなっている。第3外筒部73内に、第2の切替弁62が、移動自在に収容されている。第2の切替弁62は、例えばボール弁となっている。
 第4外筒部74内に、吸引筒67の上端部が、嵌合されている。吸引筒67の下端部は、容器本体Wの底部に位置している。吸引筒67を通して正立時導入口63aが、容器本体W内に連通している。なお、第4外筒部74を設けず、吸引筒67の上端部が、例えば第3外筒部73に連結されているという構成を採用してもよい。
A relay port 64 c of the inner cylinder member 64 , which will be described later, opens into the second outer cylinder portion 72 .
The lower end of the inner cylinder member 64 is tightly fitted into the upper end of the third outer cylinder portion 73. The lower end opening of the third outer cylinder portion 73 serves as an upright position introduction port 63a that opens in the vertical direction. The second switching valve 62 is movably housed within the third outer cylinder portion 73. The second switching valve 62 is, for example, a ball valve.
The upper end of the suction cylinder 67 is fitted into the fourth outer cylinder portion 74. The lower end of the suction cylinder 67 is located at the bottom of the container body W. The upright inlet 63a communicates with the inside of the container body W through the suction cylinder 67. Note that a configuration may be adopted in which the fourth outer cylinder portion 74 is not provided and the upper end of the suction cylinder 67 is connected to, for example, the third outer cylinder portion 73.
 図2に示されるように、内筒部材64は、正立時導入口63aに連通する下端開口64aと、倒立時導入口65aに連通する上端開口64bと、内容液導入口21f、正立時導入口63a、および倒立時導入口65aに連通可能な中継口64cと、を有する。中継口64cは、内容液導入口21f、正立時導入口63a、および倒立時導入口65aに、互いに異なる流路を通して各別に連通している。 2, the inner cylinder member 64 has a lower end opening 64a that communicates with the upright inlet 63a, an upper end opening 64b that communicates with the inlet 65a when inverted, and a relay port 64c that can communicate with the content liquid inlet 21f, the upright inlet 63a, and the inverted inlet 65a. The relay port 64c is connected to the content liquid inlet 21f, the upright inlet 63a, and the inverted inlet 65a separately through different flow paths.
 内筒部材64は、上下方向の中間部分が径方向の内側に括れた瓢箪状(瓢箪のような形状)に形成されている。内筒部材64の上端部は、流路形成部材65の底壁部に連結されている。内筒部材64は、上方から下方に向けて、第1内筒部76と、第2内筒部77と、第3内筒部78と、がこの順に連ねられて構成されている。 The inner cylinder member 64 is formed in a gourd shape with the vertical middle portion narrowed radially inward. The upper end of the inner cylinder member 64 is connected to the bottom wall of the flow path forming member 65. The inner cylinder member 64 is composed of a first inner cylinder portion 76, a second inner cylinder portion 77, and a third inner cylinder portion 78, which are connected in this order from top to bottom.
 第1内筒部76の上端開口が、内筒部材64の上端開口64bとなっている。第1内筒部76の下部の内周面には、上方を向く正立時弁座64dが、形成されている。正立時弁座64dは、下方に向かうに従い径方向の内側に向けて延びている。
 第1の切替弁61は、吐出器10の正立時に、後述する第2経路L2に進入し、正立時弁座64dに当接して、倒立時導入口65aと中継口64cとの連通を遮断する。第1の切替弁61は、正立時弁座64dの上方に配置されている。第1の切替弁61は、例えばボール弁であり、正立時弁座64dに対して上方に離反自在に当接している。
The upper end opening of the first inner cylinder portion 76 constitutes the upper end opening 64b of the inner cylinder member 64. An upright valve seat 64d facing upward is formed on the inner circumferential surface of the lower portion of the first inner cylinder portion 76. The upright valve seat 64d extends radially inward as it extends downward.
When the dispenser 10 is in the upright position, the first switching valve 61 enters the second path L2 described later and abuts against the upright valve seat 64d to block communication between the inverted inlet 65a and the relay port 64c. The first switching valve 61 is disposed above the upright valve seat 64d. The first switching valve 61 is, for example, a ball valve, and abuts against the upright valve seat 64d in an upwardly releasable manner.
 第2内筒部77は、内筒部材64の括れ部分を構成している。第2内筒部77には、径方向に貫通する中継口64cが、周方向に間隔をあけて複数形成されている。 The second inner cylinder portion 77 constitutes the narrowed portion of the inner cylinder member 64. The second inner cylinder portion 77 has multiple radially penetrating relay ports 64c formed at intervals in the circumferential direction.
 第3内筒部78の下端開口が、内筒部材64の下端開口64aとなっている。第3内筒部78の下端部は、外筒部材63の第3外筒部73の上端部内に嵌合されている。第3内筒部78の上部の内周面には、下方を向く倒立時弁座64eが、形成されている。倒立時弁座64eは、上方に向かうに従い径方向の内側に向けて延びている。
 第2の切替弁62は、倒立時弁座64eの下方に配置されている。第2の切替弁62は、倒立時弁座64eに対して下方から当接可能に配設されている。第2の切替弁62は、吐出器10の倒立時に、後述する第1経路L1に進入し、倒立時弁座64eに当接して、正立時導入口63aと中継口64cとの連通を遮断する。
 倒立時弁座64eには、第2の切替弁62の貼り付きを防止する貼り付き防止部64fが、形成されている。貼り付き防止部64fとしては、倒立時弁座64eに放射状に設けられた溝またはリブを例示できるが、第2の切替弁62の貼り付きを防止できる凹凸であれば適宜変更してもよい。倒立時弁座64eに貼り付き防止部64fを形成しなくてもよい。この場合、内筒部材64を上下対称の形状に形成してもよく、吐出器10の倒立時に、第2の切替弁62と倒立時弁座64eとの間のシール性が向上し、正立時導入口63aと中継口64cとの連通を確実に遮断することができる。
The lower end opening of the third inner cylinder portion 78 constitutes the lower end opening 64a of the inner cylinder member 64. The lower end of the third inner cylinder portion 78 is fitted into the upper end of the third outer cylinder portion 73 of the outer cylinder member 63. An inverted valve seat 64e facing downward is formed on the inner circumferential surface of the upper part of the third inner cylinder portion 78. The inverted valve seat 64e extends radially inward as it extends upward.
The second switching valve 62 is disposed below the inverted valve seat 64e. The second switching valve 62 is disposed so as to be able to abut against the inverted valve seat 64e from below. When the dispenser 10 is inverted, the second switching valve 62 enters a first path L1 (described later) and abuts against the inverted valve seat 64e to block communication between the upright inlet 63a and the relay port 64c.
The inverted valve seat 64e is formed with a sticking prevention portion 64f for preventing the second switching valve 62 from sticking. The sticking prevention portion 64f may be a groove or rib radially provided on the inverted valve seat 64e, but may be changed as appropriate as long as it is an unevenness that can prevent the second switching valve 62 from sticking. The sticking prevention portion 64f may not be formed on the inverted valve seat 64e. In this case, the inner cylinder member 64 may be formed in a vertically symmetrical shape, and when the dispenser 10 is inverted, the sealing property between the second switching valve 62 and the inverted valve seat 64e is improved, and the communication between the upright inlet 63a and the relay port 64c can be reliably blocked.
 流路形成部材65の底壁部に、栓部(有頂筒状部)65bと、共通流路68と、が、形成されている。 A plug portion (topped cylindrical portion) 65b and a common flow path 68 are formed on the bottom wall of the flow path forming member 65.
 栓部65bは、シール筒部65cより径方向の内側に設けられている。栓部65bは、流路形成部材65の底壁部から上下方向の両側に突出している。栓部65bのうち、流路形成部材65の底壁部から下方に突出した部分が、内筒部材64の上端開口64b内に嵌合されている。栓部65bは、上下方向に延びる有頂筒状に形成されている。栓部65bの周壁のうち、上端部より下方に位置する部分に、倒立時導入口65aが、形成されている。倒立時導入口65aは、径方向に延び、流路形成部材65の底壁部を径方向に貫いて、栓部65bの内周面、および流路形成部材65の外周面に開口し、取込孔63cに連通している。 The plug portion 65b is provided radially inward from the sealing tube portion 65c. The plug portion 65b protrudes from the bottom wall portion of the flow path forming member 65 on both the up and down sides. The portion of the plug portion 65b that protrudes downward from the bottom wall portion of the flow path forming member 65 is fitted into the upper end opening 64b of the inner tube member 64. The plug portion 65b is formed in a topped tube shape extending in the up and down direction. An inverted inlet 65a is formed in a portion of the peripheral wall of the plug portion 65b that is located below the upper end. The inverted inlet 65a extends radially, penetrates the bottom wall portion of the flow path forming member 65 in the radial direction, opens on the inner peripheral surface of the plug portion 65b and the outer peripheral surface of the flow path forming member 65, and communicates with the intake hole 63c.
 共通流路68は、シリンダ部21の内容液導入口21fと中継口64cとを連通している。共通流路68は、流路形成部材65の底壁部において、栓部65bとシール筒部65cとの間に位置する部分を上下方向に貫き、流路形成部材65内に開口している。共通流路68は、第1内筒部76の上端開口縁に向けて開口している。
 ここで、シール筒部65c内には、第1内筒部76の上端部が、挿入されている。シール筒部65cの内周面と、第1内筒部76の外周面と、の間には、周方向に延びる環状の隙間が、設けられている。流路形成部材65の底壁部の下面は、第1内筒部76の上端開口縁から上方に離れている。シール筒部65cの内周面と第1内筒部76の外周面との間の環状の隙間は、共通流路68に連通している。
The common flow path 68 communicates between the content liquid inlet 21f and the relay port 64c of the cylinder portion 21. The common flow path 68 vertically penetrates a portion of the bottom wall portion of the flow path forming member 65 that is located between the stopper portion 65b and the sealing tube portion 65c, and opens into the flow path forming member 65. The common flow path 68 opens toward the upper end opening edge of the first inner tube portion 76.
Here, the upper end of the first inner cylinder 76 is inserted into the sealing cylinder 65c. An annular gap extending in the circumferential direction is provided between the inner peripheral surface of the sealing cylinder 65c and the outer peripheral surface of the first inner cylinder 76. The lower surface of the bottom wall portion of the flow path forming member 65 is spaced upward from the upper end opening edge of the first inner cylinder 76. The annular gap between the inner peripheral surface of the sealing cylinder 65c and the outer peripheral surface of the first inner cylinder 76 communicates with the common flow path 68.
 ここで、本実施形態では、正倒立用ユニット1は、吐出器10の正立時に、内容液が正立時導入口63aから中継口64cに向かう第1経路L1に対して、第2の切替弁62が進入するのを抑止する抑止部75(第1抑止部)、および吐出器10の倒立時に、内容液が倒立時導入口65aから中継口64cに向かう第2経路L2に対して、第1の切替弁61が進入するのを抑止する抑止部(第2抑止部)のうち、少なくとも一方を備えている。
 なお、第1の切替弁61に対する後者の抑止部(第2抑止部)は、栓部65bに設けられる。本実施形態の場合、第1の切替弁61に対する後者の抑止部(第2抑止部)は、後述する退避凹部69(第2退避凹部)である。
Here, in this embodiment, the inverted unit 1 has at least one of a stopper 75 (first stopper) that stops the second switching valve 62 from entering the first path L1 along which the content liquid flows from the inlet 63a when the dispenser 10 is in the upright position to the relay port 64c when the dispenser 10 is in the upright position, and a stopper (second stopper) that stops the first switching valve 61 from entering the second path L2 along which the content liquid flows from the inlet 65a when the dispenser 10 is inverted to the relay port 64c when the dispenser 10 is inverted.
The latter inhibiting portion (second inhibiting portion) for the first switching valve 61 is provided in the plug portion 65b. In the present embodiment, the latter inhibiting portion (second inhibiting portion) for the first switching valve 61 is a retraction recess 69 (second retraction recess) described later.
 図示の例では、外筒部材63の内面における正立時導入口63aの開口周縁部に、上方に向けて突出し、正立時導入口63aを上方から覆う有頂筒状の被覆部51が、形成されている。被覆部51の周壁には、径方向に開口し、正立時導入口63aと第3外筒部73内とを連通する側方開口51aが、形成されている。前述した第2の切替弁62に対する抑止部75は、被覆部51の頂壁から上方に向けて突出している。 In the illustrated example, a cylindrical covering portion 51 with a top is formed on the inner surface of the outer tube member 63 at the periphery of the opening of the upright inlet 63a, protruding upward and covering the upright inlet 63a from above. A side opening 51a is formed in the peripheral wall of the covering portion 51, opening in the radial direction and communicating the upright inlet 63a with the inside of the third outer tube portion 73. The stopper portion 75 for the second switching valve 62 described above protrudes upward from the top wall of the covering portion 51.
 抑止部75(第1抑止部)の、被覆部51の頂壁から上方に向けた突出量は、第2の切替弁62の外径と同等になっている。図3に示されるように、抑止部75は、上下方向から見て、表面が、径方向のうち側方開口51aが開口している側を向く板状に形成されている。抑止部75は、被覆部51の頂壁において、径方向のうち側方開口51aが開口している側の端部に位置している。図2に示されるように、上下方向に沿う縦断面視において、抑止部75の表面は、側方開口51aの開口面と同一直線上に位置している。抑止部75が、前述したような板状に形成されていることから、例えば全周にわたって連続して延びる筒状に形成されているという構成等と比べて、スペース上の制約を生じさせにくくすることができる。 The amount of protrusion of the suppression portion 75 (first suppression portion) upward from the top wall of the covering portion 51 is equal to the outer diameter of the second switching valve 62. As shown in FIG. 3, the suppression portion 75 is formed in a plate shape with a surface facing the radial side where the side opening 51a is open when viewed from the top-bottom direction. The suppression portion 75 is located at the end of the top wall of the covering portion 51 on the radial side where the side opening 51a is open. As shown in FIG. 2, in a vertical cross-sectional view along the top-bottom direction, the surface of the suppression portion 75 is located on the same line as the opening surface of the side opening 51a. Because the suppression portion 75 is formed in a plate shape as described above, it is possible to reduce space constraints compared to, for example, a configuration in which the suppression portion 75 is formed in a cylindrical shape that extends continuously around the entire circumference.
 第3外筒部73の内周面のうち、抑止部75(第1抑止部)の裏面と径方向で対向する部分と、抑止部75の裏面と、の間の間隔は、第2の切替弁62の外径より大きくなっている。第3外筒部73の内周面のうち、被覆部51の周壁の外周面と径方向で対向する部分と、被覆部51の周壁の外周面と、の間の間隔は、第2の切替弁62の外径より小さくなっている。
 第2の切替弁62は、吐出器10の正立時に、抑止部75の裏面と、被覆部51の頂壁の上面と、第3外筒部73の内周面と、で囲まれた空間(すなわち、退避凹部90)に位置する。
The distance between the back surface of the suppression portion 75 and a portion of the inner circumferential surface of the third outer tube portion 73 that faces radially the back surface of the suppression portion 75 (first suppression portion) is larger than the outer diameter of the second changeover valve 62. The distance between the back surface of the suppression portion 75 and a portion of the inner circumferential surface of the third outer tube portion 73 that faces radially the outer circumferential surface of the peripheral wall of the covering portion 51 is smaller than the outer diameter of the second changeover valve 62.
When the dispenser 10 is in the upright position, the second switching valve 62 is located in a space (i.e., the retraction recess 90) surrounded by the back surface of the restraining portion 75, the upper surface of the top wall of the covering portion 51, and the inner surface of the third outer tube portion 73.
 第3外筒部73の内周面のうち、側方開口51aおよび抑止部75(第1抑止部)の表面と径方向で対向する部分と、側方開口51aおよび抑止部75の表面と、の間の間隔は、第2の切替弁62の外径より大きくなっている。
 第3外筒部73の内周面のうち、側方開口51aおよび抑止部75の表面と径方向で対向する部分と、側方開口51aおよび抑止部75の表面と、の間(隙間)が、内容液が正立時導入口63aから中継口64cに向かう第1経路L1の入口部分とされ、第3外筒部73の内側には、吐出器10の正立時に、前記入口部分に進入しようとした第2の切替弁62を、抑止部75の裏面側に導く案内部52が、設けられている。
The distance between the portion of the inner surface of the third outer tube portion 73 that radially faces the side opening 51a and the surface of the restraining portion 75 (first restraining portion) and the side opening 51a and the surface of the restraining portion 75 is larger than the outer diameter of the second switching valve 62.
The gap between the portion of the inner surface of the third outer tube portion 73 that is radially opposed to the side opening 51a and the surface of the stopper portion 75 and the side opening 51a and the surface of the stopper portion 75 serves as the inlet portion of the first path L1 through which the content liquid flows from the inlet 63a to the relay port 64c when the nozzle 10 is in the upright position, and a guide portion 52 is provided on the inside of the third outer tube portion 73 for guiding the second switching valve 62 that attempts to enter the inlet portion to the back side of the stopper portion 75 when the dispenser 10 is in the upright position.
 案内部52は、第3外筒部73の内周面のうち、側方開口51aおよび抑止部75(第1抑止部)の表面と径方向で対向する部分から径方向の内側に向けて突出している。案内部52は、第3外筒部73の下端部から上方に向けて延びている。案内部52の上端部は、抑止部75の上端部より上方に位置し、内筒部材64の下端部と上下方向で突き当たっている。案内部52の上端部は、上方に向かうに従い径方向の外側に向けて延びている。案内部52は、表裏面が周方向を向く板状に形成されている。図3に示されるように、案内部52は、第3外筒部73の内周面のうち、側方開口51aおよび抑止部75のそれぞれの周方向の中央部と径方向で対向する部分を周方向に挟む両側に位置する部分に、1つずつ設けられている。 The guide portion 52 protrudes radially inward from a portion of the inner circumferential surface of the third outer tube portion 73 that faces radially the side opening 51a and the surface of the restraining portion 75 (first restraining portion). The guide portion 52 extends upward from the lower end of the third outer tube portion 73. The upper end of the guide portion 52 is located above the upper end of the restraining portion 75 and abuts against the lower end of the inner tube member 64 in the vertical direction. The upper end of the guide portion 52 extends radially outward as it extends upward. The guide portion 52 is formed in a plate shape with the front and back surfaces facing the circumferential direction. As shown in FIG. 3, the guide portion 52 is provided on both sides of the inner circumferential surface of the third outer tube portion 73 that sandwich the portion that faces radially the circumferential center of the side opening 51a and the restraining portion 75.
 ここで、本実施形態では、吐出器10の正立時に、第2の切替弁62を進入させて、第1経路L1に対して、倒立時弁座64eの反対側で、かつ正立時導入口63aの開口方向に交差する方向に、第2の切替弁62を離す退避凹部90(第1退避凹部)、および吐出器10の倒立時に、第1の切替弁61を進入させて、第2経路L2に対して、正立時弁座64dの反対側で、かつ倒立時導入口65aの開口方向に交差する方向に、第1の切替弁61を離す退避凹部69(第2退避凹部かつ第2抑止部)のうち、少なくとも一方を備えている。 In this embodiment, at least one of the following is provided: a retraction recess 90 (first retraction recess) that, when the dispenser 10 is in the upright position, causes the second switching valve 62 to enter and release the second switching valve 62 from the first path L1 on the opposite side of the inverted valve seat 64e and in a direction intersecting the opening direction of the inlet 63a when in the upright position; and a retraction recess 69 (second retraction recess and second inhibition portion) that, when the dispenser 10 is in the upright position, causes the first switching valve 61 to enter and release the first switching valve 61 from the second path L2 on the opposite side of the inverted valve seat 64d and in a direction intersecting the opening direction of the inlet 65a when in the upright position.
 なお、第2の切替弁62に対する前者の退避凹部90(第1退避凹部)としては、例えば、第3外筒部73の内周面のうち、被覆部51の周壁の外周面と径方向で対向する部分と、被覆部51の周壁の外周面と、の間の間隔を、第2の切替弁62の外径より大きくしたうえで、この隙間部分を、正立時導入口63aよりも下方に窪ませるという構成等を採用することができる。 The former retraction recess 90 (first retraction recess) for the second switching valve 62 may be configured, for example, such that the gap between the portion of the inner circumferential surface of the third outer tube 73 that faces the outer circumferential surface of the peripheral wall of the covering portion 51 in the radial direction and the outer circumferential surface of the peripheral wall of the covering portion 51 is made larger than the outer diameter of the second switching valve 62, and this gap is recessed below the upright inlet 63a.
 図示の例では、栓部65bの内側において、倒立時導入口65aより上方に位置する部分が、吐出器10の倒立時に、第1の切替弁61が進入する退避凹部69(第2退避凹部かつ第2抑止部)とされている。図4に示されるように、退避凹部69に進入した第1の切替弁61は、第2経路L2から上下方向、つまり第2経路L2から倒立時導入口65aの開口方向に交差する方向に離れる。 In the illustrated example, the portion inside the plug portion 65b that is located above the inverted inlet 65a is the evacuation recess 69 (second evacuation recess and second prevention portion) into which the first switching valve 61 enters when the dispenser 10 is inverted. As shown in FIG. 4, the first switching valve 61 that enters the evacuation recess 69 leaves the second path L2 in the vertical direction, that is, in the direction that intersects with the opening direction of the inverted inlet 65a from the second path L2.
 次に、吐出器10の作用を説明する。 Next, the function of the dispenser 10 will be explained.
 レバー部26を突出部25bの上端部回りに下方に向けて回転させ、吐出ヘッド12を押し下げると、ピストン部22が、吐出ヘッド12とともに、第1付勢部材23の付勢力に抗して押し下げられる。この際、ピストン部22の摺動部22aが、シリンダ部21の内周面を下方に向けて摺動し、シリンダ部21の内容積が、減少することで、シリンダ部21内が、加圧される。シリンダ部21の内圧上昇により、シリンダ部21内の下部弁体24が、弁座部21eに密接し、シリンダ部21内と容器本体W内との連通を遮断する。これにより、シリンダ部21内で加圧された内容液が、ピストン部22の筒部22b内を上昇し、吐出ヘッド12の縦筒12b内を通して横筒12aの後部内に流入することで、横筒12aの後部内が、加圧される。そして、横筒12aの後部の内圧が、所定値を超えたときに、蓄圧弁28が第2付勢部材29の付勢力に抗して後方に移動することで、縦筒12b内と吐出孔12cとが、連通し、内容液が、吐出孔12cから吐出される。
 その後、吐出ヘッド12の押し下げを解除すると、第1付勢部材23の上方付勢力によって、ピストン部22が、吐出ヘッド12とともに上昇する。
When the lever portion 26 is rotated downward around the upper end of the protruding portion 25b to push down the discharge head 12, the piston portion 22 is pushed down together with the discharge head 12 against the biasing force of the first biasing member 23. At this time, the sliding portion 22a of the piston portion 22 slides downward on the inner circumferential surface of the cylinder portion 21, and the internal volume of the cylinder portion 21 decreases, so that the inside of the cylinder portion 21 is pressurized. Due to the increase in the internal pressure of the cylinder portion 21, the lower valve body 24 in the cylinder portion 21 comes into close contact with the valve seat portion 21e, blocking communication between the inside of the cylinder portion 21 and the inside of the container body W. As a result, the content liquid pressurized in the cylinder portion 21 rises inside the tube portion 22b of the piston portion 22 and flows into the rear part of the horizontal tube 12a through the vertical tube 12b of the discharge head 12, so that the rear part of the horizontal tube 12a is pressurized. When the internal pressure at the rear of the horizontal tube 12a exceeds a predetermined value, the pressure accumulator valve 28 moves rearward against the biasing force of the second biasing member 29, thereby connecting the inside of the vertical tube 12b to the discharge hole 12c, and the content liquid is discharged from the discharge hole 12c.
Thereafter, when the downward pressure on the discharge head 12 is released, the piston portion 22 rises together with the discharge head 12 due to the upward biasing force of the first biasing member 23 .
 ピストン部22が、シリンダ部21の内周面を上方に向けて摺動すると、シリンダ部21の内周面とピストン部22の内周面とで囲まれた空間が、増加し、シリンダ部21内が、減圧される。シリンダ部21の内圧減少により、下部弁体24が、弁座部21eの上面から上方に離反し、内容液導入口21fが、開放され、内容液導入口21fから中継口64cに至る主流路が、減圧状態になる。 When the piston portion 22 slides upward on the inner circumferential surface of the cylinder portion 21, the space enclosed by the inner circumferential surface of the cylinder portion 21 and the inner circumferential surface of the piston portion 22 increases, and the pressure inside the cylinder portion 21 is reduced. Due to the reduction in the internal pressure of the cylinder portion 21, the lower valve body 24 moves upward away from the upper surface of the valve seat portion 21e, the content liquid inlet port 21f is opened, and the main flow path from the content liquid inlet port 21f to the relay port 64c is reduced in pressure.
 この主流路は、流路形成部材65の内側、共通流路68、流路形成部材65の底壁部の下面と第1内筒部76の上端開口縁との間の隙間、シール筒部65cの内周面と第1内筒部76の外周面との間の隙間、第2外筒部72の内周面と第1内筒部76の外周面との間の隙間、および第2外筒部72の内周面と第2内筒部77の外周面との間の隙間を備えている。 This main flow path includes the inside of the flow path forming member 65, the common flow path 68, a gap between the lower surface of the bottom wall portion of the flow path forming member 65 and the upper end opening edge of the first inner cylinder portion 76, a gap between the inner surface of the sealing cylinder portion 65c and the outer surface of the first inner cylinder portion 76, a gap between the inner surface of the second outer cylinder portion 72 and the outer surface of the first inner cylinder portion 76, and a gap between the inner surface of the second outer cylinder portion 72 and the outer surface of the second inner cylinder portion 77.
 主流路が減圧状態になると、吐出器10の正立時では、第1の切替弁61が、正立時弁座64dに密接し、倒立時導入口65aと中継口64cとの連通が、遮断されている。そのため、中継口64cおよび第2内筒部77内を通して、第3内筒部78内および第3外筒部73内が、減圧される。これにより、内容液導入口21fから主流路、中継口64c、第2内筒部77内、第3内筒部78内、第3外筒部73内、正立時導入口63a、および吸引筒67内を経て容器本体W内に至る正立時用流路が、減圧状態になり、容器本体W内の内容液が、シリンダ部21内に吸い上げられる。 When the main flow path is depressurized, the first switching valve 61 is in close contact with the upright valve seat 64d when the dispenser 10 is in the upright position, and communication between the inverted inlet 65a and the relay port 64c is blocked. Therefore, the third inner cylinder 78 and the third outer cylinder 73 are depressurized through the relay port 64c and the second inner cylinder 77. As a result, the upright flow path from the content liquid inlet 21f through the main flow path, the relay port 64c, the second inner cylinder 77, the third inner cylinder 78, the third outer cylinder 73, the upright inlet 63a, and the suction tube 67 to the container body W is depressurized, and the content liquid in the container body W is sucked up into the cylinder 21.
 この際、第2の切替弁62は、正立時導入口63aから中継口64cに向かう内容液の第1経路L1に対して、抑止部75により隔てられている。これにより、第1経路L1を流れる内容液が第2の切替弁62に接触することが、抑えられる。 At this time, the second switching valve 62 is separated from the first path L1 of the contents flowing from the inlet 63a to the relay port 64c when in the upright position by the prevention portion 75. This prevents the contents flowing through the first path L1 from coming into contact with the second switching valve 62.
 一方、吐出器10の倒立時には、図4に示されるように、第1の切替弁61が、自重により正立時弁座64dから離反して、倒立時導入口65aと中継口64cとが、連通し、かつ第2の切替弁62が、自重により倒立時弁座64eに密接して、正立時導入口63aと中継口64cとの連通を遮断する。この状態で、内容液の吐出後に吐出ヘッド12が復元移動すると、前述した吐出器10の正立時と同様に、下部弁体24が、弁座部21eから離反して、内容液導入口21fが、開放され、内容液導入口21fから中継口64cに至る主流路が、減圧状態になることから、中継口64cから倒立時導入口65aを通して取込孔63cに至る倒立時用流路も、減圧状態になる。 On the other hand, when the dispenser 10 is inverted, as shown in FIG. 4, the first switching valve 61 moves away from the upright valve seat 64d due to its own weight, and the inlet 65a and the relay port 64c are connected, and the second switching valve 62 moves in close contact with the inverted valve seat 64e due to its own weight, blocking the connection between the upright inlet 63a and the relay port 64c. In this state, when the discharge head 12 moves back to its original position after discharging the contents liquid, the lower valve body 24 moves away from the valve seat 21e, opening the contents liquid inlet 21f, as in the above-mentioned case when the dispenser 10 is in the upright position, and the main flow path from the contents liquid inlet 21f to the relay port 64c is in a reduced pressure state, so that the inverted flow path from the relay port 64c through the inverted inlet 65a to the intake hole 63c is also in a reduced pressure state.
 この倒立時用流路は、第2内筒部77の内側、第1内筒部76の内側、栓部65bの内側、倒立時導入口65a、並びに流路形成部材65の外周面と第1外筒部71の内周面との間の隙間を備えている。
 倒立時用流路が減圧状態になると、吐出器10の倒立時では、容器本体W内の内容液が、取込孔63c、倒立時用流路、中継口64c、および主流路を通して内容液導入口21fに導入される。
This inverted flow path includes the inside of the second inner tube portion 77, the inside of the first inner tube portion 76, the inside of the plug portion 65b, the inverted inlet 65a, and a gap between the outer peripheral surface of the flow path forming member 65 and the inner peripheral surface of the first outer tube portion 71.
When the inverted flow path is in a reduced pressure state, the liquid contents in the container body W are introduced into the liquid contents inlet 21f through the inverted flow path, the relay port 64c, and the main flow path when the dispenser 10 is inverted.
 吐出器10の倒立時に、第1の切替弁61は、栓部65b内に進入して、栓部65b内の退避凹部69(第2退避凹部かつ第2抑止部)に到達し、栓部65bの頂壁に当接する。この際、第1の切替弁61は、倒立時導入口65aから上下方向に離れている。これにより、第1の切替弁61は、倒立時導入口65aから中継口64cに向かう内容液の第2経路L2から上下方向に離れるので、第2経路L2を流れる内容液が第1の切替弁61に接触することが、抑えられる。 When the dispenser 10 is inverted, the first switching valve 61 enters the plug portion 65b, reaches the retraction recess 69 (second retraction recess and second stopper portion) in the plug portion 65b, and abuts against the top wall of the plug portion 65b. At this time, the first switching valve 61 is vertically separated from the inlet port 65a when inverted. As a result, the first switching valve 61 is vertically separated from the second path L2 of the content liquid that flows from the inlet port 65a when inverted to the relay port 64c, preventing the content liquid flowing through the second path L2 from coming into contact with the first switching valve 61.
 以上説明したように、本実施形態による正倒立用ユニット1によれば、正倒立用ユニット1は、吐出器10の正立時に、第1経路L1に対して第2の切替弁62が進入するのを抑止する抑止部75(第1抑止部)、および吐出器10の倒立時に、第2経路L2に対して第1の切替弁61が進入するのを抑止する抑止部(第2抑止部)のうち、少なくとも一方の抑止部を備えている。本実施形態の場合、抑止部(第2抑止部)は、退避凹部69(第2退避凹部)である。これにより、容器本体W内の内容液が、内容液導入口21fに導入される際、吐出器10の正立時に、第1経路L1を流れる内容液が、第2の切替弁62に接触して、第2の切替弁62が、内容液の液流に乗って倒立時弁座64eに向けて接近すること、および吐出器10の倒立時に、第2経路L2を流れる内容液が、第1の切替弁61に接触して、第1の切替弁61が、内容液の液流に乗って正立時弁座64dに向けて接近すること、のうち、少なくとも一方を防ぐことができる。 As described above, according to the normal inversion unit 1 of this embodiment, the normal inversion unit 1 is provided with at least one of the inhibiting portion 75 (first inhibiting portion) that inhibits the second switching valve 62 from entering the first path L1 when the dispenser 10 is in the normal position, and the inhibiting portion (second inhibiting portion) that inhibits the first switching valve 61 from entering the second path L2 when the dispenser 10 is inverted. In this embodiment, the inhibiting portion (second inhibiting portion) is the retraction recess 69 (second retraction recess). This prevents at least one of the following when the liquid contents in the container body W are introduced into the liquid contents inlet 21f: when the dispenser 10 is upright, the liquid contents flowing through the first path L1 comes into contact with the second switching valve 62, and the second switching valve 62 moves with the liquid contents flow toward the inverted valve seat 64e; and when the dispenser 10 is inverted, the liquid contents flowing through the second path L2 comes into contact with the first switching valve 61, and the first switching valve 61 moves with the liquid contents flow toward the upright valve seat 64d.
 これにより、内容液が、内容液導入口21fに導入される際、吐出器10の正立時に、第2の切替弁62が、中継口64cを通して及ぼされるシリンダ部21内の減圧によって倒立時弁座64eに押し当てられること、および吐出器10の倒立時に、第1の切替弁61が、中継口64cを通して及ぼされるシリンダ部21内の減圧によって正立時弁座64dに押し当てられること、のうち、少なくとも一方を防ぐことが可能になり、容器本体W内の内容液をシリンダ部21内に円滑に導入することができる。 This makes it possible to prevent at least one of the following when the liquid contents are introduced into the liquid contents inlet 21f: when the dispenser 10 is upright, the second switching valve 62 is pressed against the inverted valve seat 64e due to the reduced pressure in the cylinder section 21 exerted through the relay port 64c, and when the dispenser 10 is upright, the first switching valve 61 is pressed against the upright valve seat 64d due to the reduced pressure in the cylinder section 21 exerted through the relay port 64c, and the liquid contents in the container body W can be smoothly introduced into the cylinder section 21.
 被覆部51の周壁に、正立時導入口63aと外筒部材63内とを連通する側方開口51aが、形成され、抑止部75(第1抑止部)が、被覆部51の頂壁から上方に向けて突出している。これにより、吐出器10の正立時に、第2の切替弁62を、抑止部75の裏面と、被覆部51の頂壁の上面と、外筒部材63の内周面と、で囲まれた空間(すなわち、退避凹部90)に位置させることで、第2の切替弁62が第1経路L1に進入するのを確実に抑止することができる。 A side opening 51a is formed in the peripheral wall of the covering portion 51, which connects the inlet 63a to the inside of the outer tube member 63 when in the upright position, and a stopper portion 75 (first stopper portion) protrudes upward from the top wall of the covering portion 51. As a result, when the dispenser 10 is in the upright position, the second switching valve 62 is positioned in the space surrounded by the back surface of the stopper portion 75, the upper surface of the top wall of the covering portion 51, and the inner peripheral surface of the outer tube member 63 (i.e., the retreat recess 90), thereby reliably preventing the second switching valve 62 from entering the first path L1.
 外筒部材63の内側に、吐出器10の正立時に、第1経路L1の前記入口部分に進入しようとした第2の切替弁62を、抑止部75(第1抑止部)の裏面側に導く案内部52が設けられている。これにより、第2の切替弁62が第1経路L1に進入するのを確実に抑止することができる。 A guide portion 52 is provided on the inside of the outer tube member 63 to guide the second switching valve 62, which is attempting to enter the inlet portion of the first path L1 when the dispenser 10 is upright, to the back side of the prevention portion 75 (first prevention portion). This makes it possible to reliably prevent the second switching valve 62 from entering the first path L1.
 正倒立用ユニット1は、吐出器10の正立時に、第2の切替弁62を進入させて、第1経路L1に対して、倒立時弁座64eの反対側で、かつ正立時導入口63aの開口方向に交差する方向に、第2の切替弁62を離す退避凹部90(第1退避凹部)、および吐出器10の倒立時に、第1の切替弁61を進入させて、第2経路L2に対して、正立時弁座64dの反対側で、かつ倒立時導入口65aの開口方向に交差する方向に、第1の切替弁61を離す退避凹部69(第2退避凹部かつ第2抑止部)のうち、少なくとも一方の退避凹部を備えている。本実施形態の場合、退避凹部69(第2退避凹部)は、抑止部(第2抑止部)である。これにより、容器本体W内の内容液が、内容液導入口21fに導入される際、吐出器10の正立時に、第1経路L1を流れる内容液が、第2の切替弁62に接触して、第2の切替弁62が、内容液の液流に乗って倒立時弁座64eに向けて接近すること、および吐出器10の倒立時に、第2経路L2を流れる内容液が、第1の切替弁61に接触して、第1の切替弁61が、内容液の液流に乗って正立時弁座64dに向けて接近すること、のうち、少なくとも一方を防ぐことができる。 The normal/inverted unit 1 has at least one of the following retraction recesses: a retraction recess 90 (first retraction recess) that, when the dispenser 10 is in the normal position, causes the second switching valve 62 to enter and release the second switching valve 62 in a direction intersecting the opening direction of the inlet 63a when in the normal position, on the opposite side of the inverted valve seat 64e with respect to the first path L1; and a retraction recess 69 (second retraction recess and second inhibition portion) that, when the dispenser 10 is in the inverted position, causes the first switching valve 61 to enter and release the first switching valve 61 in a direction intersecting the opening direction of the inlet 65a when in the normal position, on the opposite side of the inverted valve seat 64d with respect to the second path L2. In this embodiment, the retraction recess 69 (second retraction recess) is an inhibition portion (second inhibition portion). This prevents at least one of the following when the liquid contents in the container body W are introduced into the liquid contents inlet 21f: when the dispenser 10 is upright, the liquid contents flowing through the first path L1 comes into contact with the second switching valve 62, and the second switching valve 62 moves with the liquid contents flow toward the inverted valve seat 64e; and when the dispenser 10 is inverted, the liquid contents flowing through the second path L2 comes into contact with the first switching valve 61, and the first switching valve 61 moves with the liquid contents flow toward the upright valve seat 64d.
 これにより、内容液が、内容液導入口21fに導入される際、吐出器10の正立時に、第2の切替弁62が、中継口64cを通して及ぼされるシリンダ部21内の減圧によって倒立時弁座64eに押し当てられること、および吐出器10の倒立時に、第1の切替弁61が、中継口64cを通して及ぼされるシリンダ部21内の減圧によって正立時弁座64dに押し当てられること、のうち、少なくとも一方を防ぐことが可能になり、容器本体W内の内容液をシリンダ部21内に円滑に導入することができる。 This makes it possible to prevent at least one of the following when the liquid contents are introduced into the liquid contents inlet 21f: when the dispenser 10 is upright, the second switching valve 62 is pressed against the inverted valve seat 64e due to the reduced pressure in the cylinder section 21 exerted through the relay port 64c, and when the dispenser 10 is upright, the first switching valve 61 is pressed against the upright valve seat 64d due to the reduced pressure in the cylinder section 21 exerted through the relay port 64c, and the liquid contents in the container body W can be smoothly introduced into the cylinder section 21.
 内容液導入口21fと中継口64cとを連通する共通流路68が形成された流路形成部材65が、栓部(有頂筒状部)65bを備え、栓部65bの内側において、倒立時導入口65aより上方に位置する部分が、吐出器10の倒立時に、第1の切替弁61が進入する退避凹部69(第2退避凹部かつ第2抑止部)とされている。これにより、構造の複雑化を抑えつつ、容器本体W内の内容液をシリンダ部21内に円滑に導入することが可能な正倒立用ユニット1が、得られる。 The flow path forming member 65, in which a common flow path 68 is formed that connects the content liquid inlet 21f and the relay port 64c, is provided with a stopper portion (topped cylindrical portion) 65b, and the portion inside the stopper portion 65b that is located above the inverted inlet 65a is an evacuation recess 69 (second evacuation recess and second stopper portion) into which the first switching valve 61 enters when the dispenser 10 is inverted. This makes it possible to obtain a normal inversion unit 1 that can smoothly introduce the content liquid in the container body W into the cylinder portion 21 while minimizing structural complexity.
(第2実施形態)
 次に、本発明の第2実施形態に係る正倒立用ユニット2を、図5~図7を参照しながら説明する。
 なお、この第2実施形態においては、第1実施形態における構成要素と同一の部分については同一の符号を付し、その説明を省略し、異なる点についてのみ説明する。
Second Embodiment
Next, a description will be given of an inverted stand unit 2 according to a second embodiment of the present invention with reference to FIGS.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and their description will be omitted, with only the differences being described.
 正倒立用ユニット2は、ポンプ111と、吐出ヘッド112と、装着キャップ14と、を備える吐出器110の一部を構成する。
 まず、ポンプ111、および吐出ヘッド112について説明する。
The normal/inverted unit 2 constitutes a part of a discharger 110 including a pump 111 , a discharge head 112 , and an attachment cap 14 .
First, the pump 111 and the ejection head 112 will be described.
 ポンプ111は、シリンダ部21と、ピストン部22と、第1付勢部材23と、下部弁体24と、下支持筒81と、ステム82と、蓄圧機構120と、を備えている。 The pump 111 includes a cylinder portion 21, a piston portion 22, a first biasing member 23, a lower valve body 24, a lower support tube 81, a stem 82, and a pressure accumulation mechanism 120.
 下支持筒81およびステム82は、軸線Oと同軸に配設されている。
 下支持筒81は、シリンダ部21の上端部内に嵌合されている。
 ステム82は、ステム筒82aと、上支持筒82bと、を備えている。
 上支持筒82bは、軸線Oと同軸に配置された二重筒状に形成されている。上支持筒82bは、ステム筒82aの周囲を取り囲んでいる。上支持筒82bの上端部は、ステム筒82aの上端部より下方に位置している。上支持筒82bは、周方向に並ぶ複数の連結片82cを介してステム筒82aに接続されている。
 第1付勢部材23は、ステム筒82aの周囲を取り囲んだ状態で、上支持筒82bおよび下支持筒81により上下方向に挟まれている。これにより、第1付勢部材23は、ステム82を上方付勢状態で下方移動可能に支持している。
 蓄圧機構120は、蓄圧シリンダ121と、蓄圧ピストン122と、蓄圧弁体123と、第3付勢部材124と、を備えている。蓄圧機構120は、シリンダ部21内の内容液を、ピストン部22の下降により吐出孔12cに向けて送り出すときに、シリンダ部21内を補助的に加圧する。
The lower support cylinder 81 and the stem 82 are arranged coaxially with the axis O.
The lower support cylinder 81 is fitted into the upper end portion of the cylinder portion 21 .
The stem 82 includes a stem tube 82a and an upper support tube 82b.
The upper support tube 82b is formed in a double-cylinder shape arranged coaxially with the axis O. The upper support tube 82b surrounds the stem tube 82a. The upper end of the upper support tube 82b is located lower than the upper end of the stem tube 82a. The upper support tube 82b is connected to the stem tube 82a via a plurality of connecting pieces 82c arranged in the circumferential direction.
The first biasing member 23 surrounds the stem tube 82a and is sandwiched in the vertical direction between the upper support tube 82b and the lower support tube 81. As a result, the first biasing member 23 supports the stem 82 in an upward biased state so as to be movable downward.
The pressure accumulating mechanism 120 includes a pressure accumulating cylinder 121, a pressure accumulating piston 122, a pressure accumulating valve body 123, and a third biasing member 124. The pressure accumulating mechanism 120 supplementarily pressurizes the inside of the cylinder portion 21 when the content liquid in the cylinder portion 21 is sent toward the discharge hole 12c by the downward movement of the piston portion 22.
 蓄圧シリンダ121は、ピストン部22の摺動部22aの上方に設けられ、軸線Oと同軸に配置された筒状に形成されている。蓄圧シリンダ121およびピストン部22は、一体に形成されている。蓄圧シリンダ121は、下支持筒81を上下方向に貫通している。蓄圧シリンダ121の下端開口部は、シリンダ部21内に位置している。蓄圧シリンダ121の下端縁は、下支持筒81よりも下方に位置し、かつピストン部22の摺動部22aに接続されている。蓄圧シリンダ121の上端部は、ステム筒82aと上支持筒82bとの間に挿入されている。蓄圧シリンダ121の上端縁と、連結片82cと、の間には、上下方向の隙間が、設けられている。なお、蓄圧シリンダ121とピストン部22とは、別体で形成されていてもよい。 The accumulator cylinder 121 is provided above the sliding portion 22a of the piston portion 22 and is formed in a cylindrical shape arranged coaxially with the axis O. The accumulator cylinder 121 and the piston portion 22 are formed integrally. The accumulator cylinder 121 penetrates the lower support tube 81 in the vertical direction. The lower end opening of the accumulator cylinder 121 is located inside the cylinder portion 21. The lower end edge of the accumulator cylinder 121 is located below the lower support tube 81 and is connected to the sliding portion 22a of the piston portion 22. The upper end of the accumulator cylinder 121 is inserted between the stem tube 82a and the upper support tube 82b. A vertical gap is provided between the upper end edge of the accumulator cylinder 121 and the connecting piece 82c. The accumulator cylinder 121 and the piston portion 22 may be formed as separate bodies.
 蓄圧ピストン122は、蓄圧シリンダ121とステム筒82aとの間に跨って配置されている。蓄圧ピストン122は、軸線Oと同軸に配置されるとともに、上方に位置するものほど外径が小さい多段筒状に形成されている。蓄圧ピストン122では、上方に位置するピストン小径部122aが、ステム筒82aの下端開口部を通じてステム筒82a内に挿入され、下方に位置するピストン大径部122bが、蓄圧シリンダ121内に嵌め込まれている。蓄圧ピストン122が、蓄圧シリンダ121に対して上下動する際、ピストン大径部122bは、蓄圧シリンダ121の内周面上を上下方向に密に摺動する。ピストン大径部122bは、蓄圧シリンダ121の内周面に形成された係止突起121aより上方に位置している。 The accumulator piston 122 is disposed between the accumulator cylinder 121 and the stem tube 82a. The accumulator piston 122 is disposed coaxially with the axis O and is formed in a multi-stage cylindrical shape with the outer diameter of the piston at the top being smaller. In the accumulator piston 122, the piston small diameter portion 122a located at the top is inserted into the stem tube 82a through the lower end opening of the stem tube 82a, and the piston large diameter portion 122b located at the bottom is fitted into the accumulator cylinder 121. When the accumulator piston 122 moves up and down relative to the accumulator cylinder 121, the piston large diameter portion 122b slides closely in the up and down direction on the inner peripheral surface of the accumulator cylinder 121. The piston large diameter portion 122b is located above the locking projection 121a formed on the inner peripheral surface of the accumulator cylinder 121.
 蓄圧弁体123は、ステム筒82aと蓄圧ピストン122との間に跨って配置されている。蓄圧弁体123は、柱体123aと、着座部123bと、を備えている。
 柱体123aは、軸線Oと同軸に配置された円柱状に形成されている。柱体123aの上端部は、ステム筒82a内に嵌合されて固定されている。蓄圧弁体123は、ステム82と一体に上下動可能である。ステム筒82aの内周面のうち、柱体123aが嵌合された部分には、連通溝82dが、形成されている。連通溝82dは、上下方向に延びるとともに、周方向に間隔をあけて複数形成されている。ステム筒82a内は、連通溝82dを通じて上下方向に連通している。柱体123aの外周面と、ピストン小径部122aの内周面と、の間に、径方向の隙間が、設けられている。
 着座部123bは、柱体123aにおける上下方向の中間部から径方向の外側に張り出している。着座部123bは、蓄圧ピストン122に対する上下動に伴いピストン小径部122aの下端縁に対して接離可能に、構成されている。すなわち、着座部123bが、ピストン小径部122aの下端縁に着座することで、蓄圧ピストン122内を通じた蓄圧シリンダ121内とステム筒82a内との連通を、遮断する。一方、着座部123bが、ピストン小径部122aの下端縁から下方に離間することで、蓄圧ピストン122内を通じて、蓄圧シリンダ121内とステム筒82a内とが、連通する。
The accumulator valve body 123 is disposed across the stem cylinder 82a and the accumulator piston 122. The accumulator valve body 123 includes a column body 123a and a seat portion 123b.
The columnar body 123a is formed in a cylindrical shape arranged coaxially with the axis O. The upper end of the columnar body 123a is fitted and fixed in the stem tube 82a. The pressure accumulator valve body 123 can move up and down integrally with the stem 82. A communication groove 82d is formed in the inner peripheral surface of the stem tube 82a in a portion where the columnar body 123a is fitted. The communication grooves 82d extend in the up-down direction and are formed at intervals in the circumferential direction. The inside of the stem tube 82a is communicated in the up-down direction through the communication groove 82d. A radial gap is provided between the outer peripheral surface of the columnar body 123a and the inner peripheral surface of the piston small diameter portion 122a.
The seating portion 123b protrudes radially outward from the vertical middle portion of the column body 123a. The seating portion 123b is configured to be able to approach and separate from the lower end edge of the piston small diameter portion 122a as the seating portion 123b moves up and down relative to the pressure accumulator piston 122. That is, the seating portion 123b seats on the lower end edge of the piston small diameter portion 122a, thereby blocking communication between the inside of the pressure accumulator cylinder 121 and the inside of the stem tube 82a through the inside of the pressure accumulator piston 122. On the other hand, the seating portion 123b moves downwardly away from the lower end edge of the piston small diameter portion 122a, thereby allowing communication between the inside of the pressure accumulator cylinder 121 and the inside of the stem tube 82a through the inside of the pressure accumulator piston 122.
 第3付勢部材124は、上下方向に延びるコイルばねとなっている。第3付勢部材124は、蓄圧シリンダ121内において、ステム筒82aの下端部、およびピストン小径部122aの周囲を取り囲んだ状態で、ステム筒82aと蓄圧ピストン122との間の上下方向の隙間に設けられている。第3付勢部材124は、蓄圧ピストン122を下方(着座部63b)に向けて付勢している。 The third biasing member 124 is a coil spring that extends in the vertical direction. The third biasing member 124 is provided in the vertical gap between the stem tube 82a and the pressure accumulator piston 122 within the pressure accumulator cylinder 121, surrounding the lower end of the stem tube 82a and the piston small diameter portion 122a. The third biasing member 124 biases the pressure accumulator piston 122 downward (towards the seating portion 63b).
 吐出ヘッド112は、蓄圧弁28、および第2付勢部材29を有さず、ステム筒82aのうち、上支持筒82bより上方に位置する上端部に、外嵌されている。吐出孔12cは、ステム筒82a内に連通している。 The discharge head 112 does not have a pressure accumulator valve 28 or a second biasing member 29, and is fitted onto the upper end of the stem tube 82a, which is located above the upper support tube 82b. The discharge hole 12c is connected to the inside of the stem tube 82a.
 吐出ヘッド112を押下すると、吐出ヘッド112とともに、ステム82、蓄圧弁体123、および蓄圧ピストン122が、一体となって下降する。この際、ステム82、蓄圧弁体123、および蓄圧ピストン122は、ピストン大径部122bの下端縁と、蓄圧シリンダ121の係止突起121aと、の間の上下方向の隙間分だけ、蓄圧シリンダ121に対して下降する。このように、ピストン部22よりも前(すなわち、ピストン部22よりも先)に、ピストン部22よりも径の小さい蓄圧ピストン122が、下降(作動)する。そのため、吐出ヘッド112を下降させる際の初期の押し下げ力を小さくすることができる。 When the discharge head 112 is pressed down, the stem 82, the pressure accumulator valve body 123, and the pressure accumulator piston 122 move down together with the discharge head 112. At this time, the stem 82, the pressure accumulator valve body 123, and the pressure accumulator piston 122 move down relative to the pressure accumulator cylinder 121 by the vertical gap between the lower edge of the piston large diameter portion 122b and the locking projection 121a of the pressure accumulator cylinder 121. In this way, the pressure accumulator piston 122, which has a smaller diameter than the piston portion 22, moves down (actuates) before the piston portion 22 (i.e., ahead of the piston portion 22). Therefore, the initial pressing force when lowering the discharge head 112 can be reduced.
 ピストン大径部122bの下端縁が、蓄圧シリンダ121の係止突起121aに接触した後は、ピストン部22も下降する。これにより、ピストン部22の摺動部22aが、シリンダ部21の内周面上を摺動することで、シリンダ部21内が、加圧される。ピストン部22が、これ以上の下降移動が規制される下降端位置に到達すると、ステム82、および蓄圧弁体123が、第3付勢部材124の付勢力に抗して蓄圧ピストン122に対して下降する。これにより、着座部123bが、ピストン小径部122aの下端縁に対して下方に離間する。すると、シリンダ部21内の内容液は、蓄圧シリンダ121内、蓄圧ピストン122と蓄圧弁体123との間の隙間、および連通溝82dを通じて、ステム筒82a内に流入する。その後、内容液は、ステム筒82aの上端開口を通過し、吐出孔12cを通じて前方に吐出される。 After the lower end edge of the piston large diameter portion 122b comes into contact with the locking projection 121a of the pressure accumulator cylinder 121, the piston portion 22 also descends. As a result, the sliding portion 22a of the piston portion 22 slides on the inner circumferential surface of the cylinder portion 21, and the inside of the cylinder portion 21 is pressurized. When the piston portion 22 reaches a lower end position where further downward movement is restricted, the stem 82 and the pressure accumulator valve body 123 descend relative to the pressure accumulator piston 122 against the biasing force of the third biasing member 124. As a result, the seating portion 123b moves downwardly away from the lower end edge of the piston small diameter portion 122a. The content liquid in the cylinder portion 21 then flows into the stem tube 82a through the pressure accumulator cylinder 121, the gap between the pressure accumulator piston 122 and the pressure accumulator valve body 123, and the communication groove 82d. The liquid then passes through the upper opening of the stem tube 82a and is discharged forward through the discharge hole 12c.
 吐出ヘッド112の押下を解除すると、ステム82および蓄圧弁体123が、第3付勢部材124の付勢力によって押し上げられ、着座部123bが、ピストン小径部122aの下端縁に当接する。これにより、シリンダ部21内とステム筒82a内との連通が、遮断され、また、ステム82が、第1付勢部材23の付勢力によって押し上げられ、ステム82、蓄圧弁体123、蓄圧ピストン122、蓄圧シリンダ121、およびピストン部22が、シリンダ部21に対して上昇する。すると、シリンダ部21内が、負圧になる。これにより、第1実施形態と同様に、内容液導入口21fから、内容液が、シリンダ部21内に供給される。 When the ejection head 112 is released from the depressed state, the stem 82 and the pressure accumulator valve body 123 are pushed up by the biasing force of the third biasing member 124, and the seating portion 123b comes into contact with the lower edge of the piston small diameter portion 122a. This blocks communication between the inside of the cylinder portion 21 and the inside of the stem tube 82a, and the stem 82 is pushed up by the biasing force of the first biasing member 23, causing the stem 82, pressure accumulator valve body 123, pressure accumulator piston 122, pressure accumulator cylinder 121, and piston portion 22 to rise relative to the cylinder portion 21. This creates a negative pressure inside the cylinder portion 21. As a result, similar to the first embodiment, the content liquid is supplied into the cylinder portion 21 from the content liquid inlet 21f.
 正倒立用ユニット2は、第1の切替弁61と、第2の切替弁62と、外筒部材63と、内筒部材64と、流路形成部材65と、第1連結部材83と、第2連結部材84と、を備えている。 The normal/inverted unit 2 includes a first switching valve 61, a second switching valve 62, an outer cylinder member 63, an inner cylinder member 64, a flow path forming member 65, a first connecting member 83, and a second connecting member 84.
 外筒部材63は、上方から下方に向けて、第1外筒部71と、第5外筒部163と、第4外筒部74と、がこの順に連ねられて構成されている。第5外筒部163内に、内筒部材64の中継口64cが、開口している。第5外筒部163の下端開口が、上下方向に開口した正立時導入口63aとなっている。第5外筒部163の内面における正立時導入口63aの開口周縁部に、上方に向けて突出した第3連結筒部163aが、形成されている。
 流路形成部材65の底壁部に、栓部165bと、共通流路68と、が、形成されている。栓部165bは、シール筒部65cより径方向の内側に設けられている。栓部165bは、流路形成部材65の底壁部から上方には突出せず、下方に突出している。
The outer tube member 63 is configured by connecting the first outer tube portion 71, the fifth outer tube portion 163, and the fourth outer tube portion 74 in this order from top to bottom. The relay port 64c of the inner tube member 64 opens inside the fifth outer tube portion 163. The lower end opening of the fifth outer tube portion 163 serves as the upright position introduction port 63a that opens in the vertical direction. A third connecting tube portion 163a that protrudes upward is formed on the periphery of the opening of the upright position introduction port 63a on the inner surface of the fifth outer tube portion 163.
A plug portion 165b and a common flow passage 68 are formed in the bottom wall portion of the flow passage forming member 65. The plug portion 165b is provided radially inward from the sealing cylinder portion 65c. The plug portion 165b does not protrude upward from the bottom wall portion of the flow passage forming member 65, but protrudes downward.
 第1連結部材83は、上下方向に延びる筒状に形成され、流路形成部材65と内筒部材64とを上下方向に連結している。第1連結部材83の上端部内に、流路形成部材65の栓部165bが、密に嵌合されている。第1連結部材83の上端部は、シール筒部65c内に挿入されている。第1連結部材83は、第1外筒部71の下端部内、および第5外筒部163の上部内に跨って設けられている。第1連結部材83の上端部の外周面と、シール筒部65cの内周面と、の間、並びに、第1連結部材83のうち、上端部より下方に位置する部分の外周面と、第5外筒部163の内周面と、の間には、それぞれ、周方向に延びる環状の隙間が、設けられている。第1連結部材83の上端開口縁は、流路形成部材65の底壁部の下面から下方に離れており、第1連結部材83の外周面側の前記隙間は、共通流路68に連通している。第1連結部材83の下端部内に、内筒部材64の第1内筒部76の上端部が、密に嵌合されている。 The first connecting member 83 is formed in a cylindrical shape extending in the vertical direction, and connects the flow path forming member 65 and the inner tube member 64 in the vertical direction. The plug portion 165b of the flow path forming member 65 is tightly fitted into the upper end portion of the first connecting member 83. The upper end portion of the first connecting member 83 is inserted into the sealing tube portion 65c. The first connecting member 83 is provided across the lower end portion of the first outer tube portion 71 and the upper portion of the fifth outer tube portion 163. Annular gaps extending in the circumferential direction are provided between the outer peripheral surface of the upper end portion of the first connecting member 83 and the inner peripheral surface of the sealing tube portion 65c, and between the outer peripheral surface of a portion of the first connecting member 83 located below the upper end portion and the inner peripheral surface of the fifth outer tube portion 163. The upper end opening edge of the first connecting member 83 is spaced downward from the lower surface of the bottom wall portion of the flow path forming member 65, and the gap on the outer peripheral surface side of the first connecting member 83 communicates with the common flow path 68. The upper end of the first inner cylinder portion 76 of the inner cylinder member 64 is tightly fitted into the lower end of the first connecting member 83.
 第2連結部材84は、上下方向に延びる筒状に形成され、内筒部材64と、外筒部材63の第3連結筒部163aと、を上下方向に連結している。第2連結部材84の上端部内に、内筒部材64の第3内筒部78の下端部が、密に嵌合されている。第2連結部材84の下端部内に、外筒部材63の第3連結筒部163aが、密に嵌合されている。 The second connecting member 84 is formed in a cylindrical shape that extends vertically, and connects the inner tube member 64 and the third connecting tube portion 163a of the outer tube member 63 in the vertical direction. The lower end of the third inner tube portion 78 of the inner tube member 64 is tightly fitted into the upper end of the second connecting member 84. The third connecting tube portion 163a of the outer tube member 63 is tightly fitted into the lower end of the second connecting member 84.
 そして、本実施形態では、図6に示されるような吐出器110の正立時に、内容液が正立時導入口63aから中継口64cに向かう第1経路L1に対して、第2の切替弁62が進入するのを抑止する抑止部175a(第1抑止部)、および図7に示されるような吐出器110の倒立時に、内容液が倒立時導入口65aから中継口64cに向かう第2経路L2に対して、第1の切替弁61が進入するのを抑止する抑止部175b(第2抑止部)の双方が、設けられている。
 なお、抑止部175aおよび抑止部175bのうち、いずれか一方のみを設けてもよい。
In this embodiment, when the ejector 110 is in the upright position as shown in Figure 6, there is provided a stopper portion 175a (first stopper portion) that stops the second switching valve 62 from entering the first path L1 along which the content liquid flows from the inlet 63a when the ejector 110 is in the upright position to the relay port 64c, and when the ejector 110 is inverted as shown in Figure 7, there is provided a stopper portion 175b (second stopper portion) that stops the first switching valve 61 from entering the second path L2 along which the content liquid flows from the inlet 65a when the ejector 110 is inverted position to the relay port 64c.
It is to be noted that only one of the inhibiting portion 175a and the inhibiting portion 175b may be provided.
 抑止部175a(第1抑止部)および抑止部175b(第2抑止部)は、それぞれ、上下方向に延びる筒状に形成されるとともに、軸線Oと同軸に配設されている。抑止部175aおよび抑止部175bは、それぞれ、全周にわたって連続して延びている。なお、抑止部175aおよび抑止部175bは、それぞれ、周方向に間欠的に延びてもよいし、上下方向から見てC字状を呈してもよい。 The inhibiting portion 175a (first inhibiting portion) and the inhibiting portion 175b (second inhibiting portion) are each formed in a cylindrical shape extending in the vertical direction and are arranged coaxially with the axis O. The inhibiting portion 175a and the inhibiting portion 175b each extend continuously around the entire circumference. Note that the inhibiting portion 175a and the inhibiting portion 175b may each extend intermittently in the circumferential direction, or may have a C-shape when viewed from the vertical direction.
 抑止部175a(第1抑止部)は、内側が倒立時弁座64eと上下方向で対向し、かつ吐出器110の正立時に第2の切替弁62が内側に進入して収容される位置に、設けられている。抑止部175aは、有底筒状に形成されている。抑止部175aの底壁の上面は、吐出器110の正立時に、抑止部175aの内側に進入して収容された第2の切替弁62を支持する。抑止部175aの底壁の上面の外周縁部は、径方向の内側に向かうに従い下方に向けて延びている。なお、吐出器110の正立時に、抑止部175aの周壁の内周面が、第2の切替弁62を支持してもよい。抑止部175aの内側の上下方向の大きさは、第2の切替弁62の直径と同等になっている。 The inner side of the suppression portion 175a (first suppression portion) faces the inverted valve seat 64e in the vertical direction, and is provided at a position where the second switching valve 62 enters and is accommodated inside when the dispenser 110 is upright. The suppression portion 175a is formed in a bottomed cylindrical shape. The upper surface of the bottom wall of the suppression portion 175a supports the second switching valve 62 that enters and is accommodated inside the suppression portion 175a when the dispenser 110 is upright. The outer peripheral edge of the upper surface of the bottom wall of the suppression portion 175a extends downward as it moves radially inward. Note that the inner peripheral surface of the peripheral wall of the suppression portion 175a may support the second switching valve 62 when the dispenser 110 is upright. The size of the inner vertical direction of the suppression portion 175a is equal to the diameter of the second switching valve 62.
 抑止部175b(第2抑止部)は、内側が正立時弁座64dと上下方向で対向し、かつ吐出器110の倒立時に第1の切替弁61が内側に進入して収容される位置に、設けられている。抑止部175bは、有頂筒状に形成されている。抑止部175bの頂壁の下面は、吐出器110の倒立時に、抑止部175bの内側に進入して収容された第1の切替弁61を支持する。抑止部175bの頂壁の下面の外周縁部は、径方向の内側に向かうに従い上方に向けて延びている。なお、吐出器110の倒立時に、抑止部175bの周壁の内周面が、第1の切替弁61を支持してもよい。抑止部175bの内側の上下方向の大きさは、第1の切替弁61の直径と同等になっている。 The inner side of the suppression portion 175b (second suppression portion) is vertically opposed to the valve seat 64d when in the upright position, and is provided at a position where the first switching valve 61 enters and is accommodated inside when the dispenser 110 is inverted. The suppression portion 175b is formed in a topped cylindrical shape. The lower surface of the top wall of the suppression portion 175b supports the first switching valve 61 that enters and is accommodated inside the suppression portion 175b when the dispenser 110 is inverted. The outer peripheral edge of the lower surface of the top wall of the suppression portion 175b extends upward as it moves radially inward. Note that the inner peripheral surface of the peripheral wall of the suppression portion 175b may support the first switching valve 61 when the dispenser 110 is inverted. The vertical size of the inner side of the suppression portion 175b is equal to the diameter of the first switching valve 61.
 抑止部175a(第1抑止部)は、第2連結部材84の内側に設けられている。抑止部175aの外周面と、第2連結部材84の内周面と、が、周方向に間隔をあけて設けられた第1接続片84aを介して連結されている。抑止部175aは、第2連結部材84の上端部より下方に位置している。抑止部175aの外周面と、第2連結部材84の内周面と、の間の径方向の隙間が、第1経路L1の一部を構成している。 The restraining portion 175a (first restraining portion) is provided on the inside of the second connecting member 84. The outer peripheral surface of the restraining portion 175a and the inner peripheral surface of the second connecting member 84 are connected via a first connecting piece 84a that is provided at intervals in the circumferential direction. The restraining portion 175a is located below the upper end of the second connecting member 84. The radial gap between the outer peripheral surface of the restraining portion 175a and the inner peripheral surface of the second connecting member 84 constitutes part of the first path L1.
 抑止部175b(第2抑止部)は、第1連結部材83の内側に設けられている。抑止部175bの外周面と、第1連結部材83の内周面と、が、周方向に間隔をあけて設けられた第2接続片83aを介して連結されている。抑止部175bは、第1連結部材83の下端部より上方に位置している。抑止部175bの外周面と、第1連結部材83の内周面と、の間の径方向の隙間が、第2経路L2の一部を構成している。 The restraining portion 175b (second restraining portion) is provided on the inside of the first connecting member 83. The outer peripheral surface of the restraining portion 175b and the inner peripheral surface of the first connecting member 83 are connected via second connecting pieces 83a that are provided at intervals in the circumferential direction. The restraining portion 175b is located above the lower end of the first connecting member 83. The radial gap between the outer peripheral surface of the restraining portion 175b and the inner peripheral surface of the first connecting member 83 constitutes part of the second path L2.
 抑止部175a(第1抑止部)、第2連結部材84、および第1接続片84aは、一体に形成された一つの部品を構成している。抑止部175b(第2抑止部)、第1連結部材83、および第2接続片83aも、一体に形成された一つの部品を構成している。前者の部品、および後者の部品は、互いに同じ形状で同じ大きさに形成され、かつ上下反転して組み付けられる共通の部品となっている。 The restraining portion 175a (first restraining portion), the second connecting member 84, and the first connecting piece 84a constitute a single, integrally formed part. The restraining portion 175b (second restraining portion), the first connecting member 83, and the second connecting piece 83a also constitute a single, integrally formed part. The former part and the latter part are formed to the same shape and size, and are common parts that are assembled upside down.
 以上説明したように、本実施形態による正倒立用ユニット2によれば、第1の切替弁61および第2の切替弁62のうち、少なくとも一方の切替弁が、弁座64d、64eから上下方向に離反したときに抑止部175b(第2抑止部)、175a(第1抑止部)の内側に進入して収容される。これにより、容器本体W内の内容液が、シリンダ部21の内容液導入口21fに導入される際、吐出器110の正立時に、第1経路L1を流れる内容液が、第2の切替弁62に接触して、第2の切替弁62が、内容液の液流に乗って倒立時弁座64eに向けて接近すること、および吐出器110の倒立時に、第2経路L2を流れる内容液が、第1の切替弁61に接触して、第1の切替弁61が、内容液の液流に乗って正立時弁座64dに向けて接近すること、のうち、少なくとも一方を確実に防ぐことができる。 As described above, according to the inverted normal unit 2 of this embodiment, when at least one of the first switching valve 61 and the second switching valve 62 moves away from the valve seats 64d, 64e in the vertical direction, it enters and is accommodated inside the restricting portion 175b (second restricting portion), 175a (first restricting portion). This reliably prevents at least one of the following when the liquid content in the container body W is introduced into the liquid content inlet 21f of the cylinder portion 21: when the dispenser 110 is in the upright position, the liquid content flowing through the first path L1 comes into contact with the second switching valve 62, and the second switching valve 62 rides on the liquid content flow and approaches the inverted valve seat 64e; and when the dispenser 110 is inverted, the liquid content flowing through the second path L2 comes into contact with the first switching valve 61, and the first switching valve 61 rides on the liquid content flow and approaches the upright valve seat 64d.
 抑止部175b(第2抑止部)、175a(第1抑止部)が、正立時弁座64dと上下方向で対向し、かつ吐出器110の倒立時に第1の切替弁61が内側に進入して収容される位置と、倒立時弁座64eと上下方向で対向し、かつ吐出器110の正立時に第2の切替弁62が内側に進入して収容される位置と、に各別に設けられている。これにより、容器本体W内の内容液が、シリンダ部21の内容液導入口21fに導入される際、吐出器110の正立時に、第1経路L1を流れる内容液が、第2の切替弁62に接触して、第2の切替弁62が、内容液の液流に乗って倒立時弁座64eに向けて接近すること、および吐出器110の倒立時に、第2経路L2を流れる内容液が、第1の切替弁61に接触して、第1の切替弁61が、内容液の液流に乗って正立時弁座64dに向けて接近すること、のうち、双方を確実に防ぐことができる。
 抑止部175b、175aが、前述の位置の双方に設けられていることから、前述の位置のそれぞれに設けられ、かつ抑止部175b、175aを備える2部品を容易に同一の形状で同一の大きさとすることができる。
The restraining portion 175b (second restraining portion) and 175a (first restraining portion) are provided at a position opposite the valve seat 64d in the upright position in the vertical direction, where the first switching valve 61 advances inward and is accommodated when the dispenser 110 is inverted, and at a position opposite the valve seat 64e in the upright position in the vertical direction, where the second switching valve 62 advances inward and is accommodated when the dispenser 110 is in the upright position. This reliably prevents both of the following from occurring when the liquid contents in the container body W are introduced into the liquid contents inlet 21f of the cylinder portion 21: when the ejector 110 is in the upright position, the liquid contents flowing through the first path L1 comes into contact with the second switching valve 62, causing the second switching valve 62 to move along with the flow of the liquid contents toward the inverted valve seat 64e; and when the ejector 110 is inverted, the liquid contents flowing through the second path L2 comes into contact with the first switching valve 61, causing the first switching valve 61 to move along with the flow of the liquid contents toward the upright valve seat 64d.
Since the restraining portions 175b, 175a are provided at both of the aforementioned positions, the two parts provided at the aforementioned positions and equipped with the restraining portions 175b, 175a can easily be made to be the same shape and size.
 なお、本発明の技術範囲は、前述した実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。 The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
 外筒部材63の内側に、被覆部51および案内部52を設けなくてもよい。
 第1の切替弁61に対する退避凹部69(第2退避凹部かつ第2抑止部)、および第2の切替弁62に対する退避凹部90(第1退避凹部)は、設けなくてもよい。
The covering portion 51 and the guide portion 52 do not need to be provided on the inside of the outer tube member 63 .
The retraction recess 69 (second retraction recess and second preventing portion) for the first switching valve 61 and the retraction recess 90 (first retraction recess) for the second switching valve 62 do not need to be provided.
 被覆部51に、全周にわたって延びる有頂筒状に形成され、かつ軸線Oと同軸に配設されるという構成を採用し、側方開口51aに、被覆部51の周壁に周方向に間隔をあけて複数形成するという構成を採用し、第2の切替弁62に対する抑止部75(第1抑止部)として、全周にわたって連続して延びる筒状に形成され、かつ被覆部51の頂壁の外周縁部に軸線Oと同軸に配設されるという構成を採用してもよい。この構成において、第2の切替弁62は、抑止部75の内側で被覆部51の頂壁の上面に位置して、軸線O上に配設される。
 この場合、吐出器10の倒立時に、第2の切替弁62を倒立時弁座64eに密接させやすくすることができる。
The covering portion 51 may be configured to be formed in a topped cylindrical shape extending around the entire circumference and disposed coaxially with the axis O, a plurality of side openings 51a may be formed at intervals in the circumferential direction on the peripheral wall of the covering portion 51, and a suppressing portion 75 (first suppressing portion) for the second switching valve 62 may be configured to be formed in a cylindrical shape extending continuously around the entire circumference and disposed coaxially with the axis O on the outer circumferential edge portion of the top wall of the covering portion 51. In this configuration, the second switching valve 62 is located on the upper surface of the top wall of the covering portion 51 inside the suppressing portion 75 and disposed on the axis O.
In this case, when the dispenser 10 is inverted, it is possible to easily bring the second switching valve 62 into close contact with the inverted valve seat 64e.
 本発明によれば、容器本体内の内容液をシリンダ部内に円滑に導入することができる。 According to the present invention, the liquid contents in the container body can be smoothly introduced into the cylinder portion.
 その他、本発明の趣旨を逸脱しない範囲で、前記実施形態における構成要素を周知の構成要素に置き換えることは適宜可能であり、また、上記した実施形態や変形例を適宜組み合わせてもよい。 In addition, the components in the above embodiments may be replaced with well-known components as appropriate without departing from the spirit of the present invention, and the above embodiments and variations may be combined as appropriate.
 1、2 正倒立用ユニット
 10、110 吐出器
 11、111 ポンプ
 12、112 吐出ヘッド
 12c 吐出孔
 21 シリンダ部
 21f 内容液導入口
 51 被覆部
 51a 側方開口
 52 案内部
 61 第1の切替弁
 62 第2の切替弁
 63 外筒部材
 63a 正立時導入口
 64c 中継口
 64d 正立時弁座
 64e 倒立時弁座
 65 流路形成部材
 65a 倒立時導入口
 65b 栓部(有頂筒状部)
 68 共通流路
 69 退避凹部(第2退避凹部、第2抑止部)
 75 抑止部(第1抑止部)
 90 退避凹部(第1退避凹部)
 175a 抑止部(第1抑止部)
 175b 抑止部(第2抑止部)
 L1 第1経路
 L2 第2経路
 W 容器本体
 W1 口部
REFERENCE SIGNS LIST 1, 2 Unit for normal/ inverted position 10, 110 Discharger 11, 111 Pump 12, 112 Discharge head 12c Discharge hole 21 Cylinder portion 21f Content liquid inlet 51 Covering portion 51a Side opening 52 Guide portion 61 First switching valve 62 Second switching valve 63 External cylinder member 63a Inlet port when in normal position 64c Relay port 64d Valve seat when in normal position 64e Valve seat when inverted position 65 Flow path forming member 65a Inlet port when inverted position 65b Plug portion (topped cylindrical portion)
68 Common flow path 69 Evacuation recess (second evacuation recess, second prevention portion)
75 Suppression section (first suppression section)
90 Retraction recess (first retraction recess)
175a: Suppression section (first suppression section)
175b Suppression part (second suppression part)
L1: First path L2: Second path W: Container body W1: Mouth

Claims (6)

  1.  吐出器のシリンダ部に取付けられる正倒立用ユニットであって、
     前記吐出器の正立時に、容器本体内の内容液を前記シリンダ部の内容液導入口に導入可能な正立時導入口と、
     前記吐出器の倒立時に、容器本体内の内容液を前記内容液導入口に導入可能な倒立時導入口と、
     前記内容液導入口、前記正立時導入口、および前記倒立時導入口に連通可能な中継口と、
     前記吐出器の正立時に、正立時弁座に当接して、前記倒立時導入口と前記中継口との連通を遮断する第1の切替弁と、
     前記吐出器の倒立時に、倒立時弁座に当接して、前記正立時導入口と前記中継口との連通を遮断する第2の切替弁と、
     前記吐出器の正立時に、内容液が前記正立時導入口から前記中継口に向かう第1経路に対して、前記第2の切替弁が進入するのを抑止する第1抑止部、および前記吐出器の倒立時に、内容液が前記倒立時導入口から前記中継口に向かう第2経路に対して、前記第1の切替弁が進入するのを抑止する第2抑止部のうち、少なくとも一方の抑止部と、
    を備えている、
     正倒立用ユニット。
    A normal/inverted unit that is attached to a cylinder portion of a dispenser,
    an upright inlet that can introduce the content liquid in the container body into the content liquid inlet of the cylinder portion when the dispenser is upright;
    an inverted inlet that can introduce the content liquid in the container body to the content liquid inlet when the dispenser is inverted;
    a relay port that can communicate with the content liquid inlet, the upright inlet, and the inverted inlet;
    a first switching valve that contacts an upright valve seat when the discharger is in an upright position to block communication between the inverted position introduction port and the relay port;
    a second switching valve that contacts an inverted valve seat when the discharger is inverted to block communication between the upright introduction port and the relay port;
    at least one of a first suppression part that suppresses the second switching valve from entering a first path along which the content liquid travels from the inlet in the upright position to the relay port when the discharger is in the upright position, and a second suppression part that suppresses the first switching valve from entering a second path along which the content liquid travels from the inlet in the upright position to the relay port when the discharger is in the inverted position;
    Equipped with
    Inverted unit.
  2.  前記シリンダ部に外装されるとともに、下端開口が前記正立時導入口とされた外筒部材をさらに備え、
     前記外筒部材の内面における前記正立時導入口の開口周縁部に、上方に向けて突出し、前記正立時導入口を上方から覆う有頂筒状の被覆部が、形成され、
     前記被覆部の周壁には、径方向に開口し、前記正立時導入口と前記外筒部材内とを連通する側方開口が、形成され、
     前記吐出器の正立時に、前記第1経路に対して前記第2の切替弁が進入するのを抑止する前記第1抑止部が、前記被覆部の頂壁から上方に向けて突出している、
     請求項1に記載の正倒立用ユニット。
    an outer tube member that is fitted to the cylinder portion and has a lower end opening that serves as the upright position introduction port;
    a topped cylindrical covering portion is formed on an opening periphery of the upright-state introduction port on an inner surface of the outer tube member, the topped cylindrical covering portion protruding upward and covering the upright-state introduction port from above,
    a side opening is formed in a peripheral wall of the covering portion, the side opening being radially open and communicating between the upright position introduction port and the inside of the outer tube member;
    the first preventing portion, which prevents the second switching valve from entering the first path when the dispenser is in an upright position, protrudes upward from a top wall of the covering portion;
    2. The inverted stand unit according to claim 1.
  3.  前記第1抑止部は、上下方向から見て、表面が、径方向のうち、前記側方開口が開口している側を向く板状に形成され、
     前記外筒部材の内周面のうち、前記側方開口および前記第1抑止部の表面と径方向で対向する部分と、前記側方開口および前記第1抑止部の表面と、の間が、前記第1経路の入口部分とされ、
     前記外筒部材の内側には、前記吐出器の正立時に、前記入口部分に進入しようとした前記第2の切替弁を、前記第1抑止部の裏面側に導く案内部が、設けられている、
     請求項2に記載の正倒立用ユニット。
    When viewed from the top and bottom direction, the first restricting portion has a plate-like surface facing the radial direction toward the side where the side opening is opened,
    a portion of an inner circumferential surface of the outer tubular member that faces the side opening and the surface of the first restricting portion in the radial direction and a portion between the side opening and the surface of the first restricting portion are defined as an inlet portion of the first path,
    A guide portion is provided on the inside of the outer cylinder member to guide the second switching valve, which is about to enter the inlet portion when the dispenser is in an upright position, to a back side of the first restricting portion.
    3. The inverted stand unit according to claim 2.
  4.  前記吐出器の正立時に、前記第2の切替弁を進入させて、前記第1経路に対して、前記倒立時弁座の反対側で、かつ前記正立時導入口の開口方向に交差する方向に、前記第2の切替弁を離す第1退避凹部、および前記吐出器の倒立時に、前記第1の切替弁を進入させて、前記第2経路に対して、前記正立時弁座の反対側で、かつ前記倒立時導入口の開口方向に交差する方向に、前記第1の切替弁を離す第2退避凹部のうち、少なくとも一方の退避凹部をさらに備えている、
     請求項1から3のいずれか1項に記載の正倒立用ユニット。
    the discharger further includes at least one of a first retraction recess for allowing the second switching valve to enter and separate the second switching valve from the first path in a direction intersecting an opening direction of the inlet when the discharger is in an upright position, on the opposite side of the valve seat when the discharger is in an upright position, and a second retraction recess for allowing the first switching valve to enter and separate the first switching valve from the second path in a direction intersecting an opening direction of the inlet when the discharger is in an upright position, on the opposite side of the valve seat when the discharger is in an upright position,
    The inverted stand unit according to any one of claims 1 to 3.
  5.  前記正立時弁座は、上方を向き、
     前記倒立時弁座は、下方を向き、
     前記少なくとも一方の抑止部は、上下方向に延びる筒状に形成されるとともに、前記正立時弁座および前記倒立時弁座のうち、少なくとも一方の弁座と上下方向で対向し、
     前記第1の切替弁および前記第2の切替弁のうち、少なくとも一方の切替弁は、前記少なくとも一方の弁座から上下方向に離反したときに前記少なくとも一方の抑止部の内側に進入して収容される、
     請求項1に記載の正倒立用ユニット。
    The valve seat faces upward when in the upright position,
    The inverted valve seat faces downward,
    The at least one of the suppression portions is formed in a cylindrical shape extending in the vertical direction and faces at least one of the upright valve seat and the inverted valve seat in the vertical direction;
    At least one of the first switching valve and the second switching valve enters and is accommodated inside the at least one suppressing portion when the at least one switching valve is vertically separated from the at least one valve seat.
    2. The inverted stand unit according to claim 1.
  6.  前記少なくとも一方の抑止部は、前記第2抑止部および前記第1抑止部であり、
     前記第2抑止部は、前記正立時弁座と上下方向で対向し、かつ前記吐出器の倒立時に前記第1の切替弁が内側に進入して収容される位置に設けられ、
     前記第1抑止部は、前記倒立時弁座と上下方向で対向し、かつ前記吐出器の正立時に前記第2の切替弁が内側に進入して収容される位置に設けられている、
     請求項5に記載の正倒立用ユニット。
    The at least one inhibiting portion is the second inhibiting portion and the first inhibiting portion,
    the second restricting portion is disposed at a position that faces the valve seat in the upright position in the vertical direction and that allows the first switching valve to enter and be accommodated in the second restricting portion when the discharger is inverted;
    The first restricting portion is disposed at a position opposite to the inverted valve seat in the upright position and at a position where the second switching valve is inserted inward and accommodated when the discharger is in the upright position.
    6. The inverted stand unit according to claim 5.
PCT/JP2023/042842 2022-11-30 2023-11-30 Unit for upright and inverted attitudes WO2024117208A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2022191685 2022-11-30
JP2022-191685 2022-11-30
JP2023047074A JP2024079531A (en) 2022-11-30 2023-03-23 Inverted unit
JP2023-047074 2023-03-23

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Publication Number Publication Date
WO2024117208A1 true WO2024117208A1 (en) 2024-06-06

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1119543A (en) * 1997-06-27 1999-01-26 Yoshino Kogyosho Co Ltd Liquid ejector used both in erected and inverted states
JPH11262704A (en) * 1998-03-19 1999-09-28 Yoshino Kogyosho Co Ltd Liquid ejector for both normal and inverted use
JP2009143617A (en) * 2007-12-17 2009-07-02 Mitani Valve Co Ltd Normal standing/reversing mechanism and pump type product
JP2014213943A (en) * 2013-04-30 2014-11-17 株式会社吉野工業所 Liquid jet device for upright and inverted positions
JP2017047926A (en) * 2015-08-31 2017-03-09 株式会社吉野工業所 Erecting and inverted both way adapter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1119543A (en) * 1997-06-27 1999-01-26 Yoshino Kogyosho Co Ltd Liquid ejector used both in erected and inverted states
JPH11262704A (en) * 1998-03-19 1999-09-28 Yoshino Kogyosho Co Ltd Liquid ejector for both normal and inverted use
JP2009143617A (en) * 2007-12-17 2009-07-02 Mitani Valve Co Ltd Normal standing/reversing mechanism and pump type product
JP2014213943A (en) * 2013-04-30 2014-11-17 株式会社吉野工業所 Liquid jet device for upright and inverted positions
JP2017047926A (en) * 2015-08-31 2017-03-09 株式会社吉野工業所 Erecting and inverted both way adapter

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