JP5455206B2 - A pump-type product with a foam generation and release unit, a content foam release pump mechanism and a content foam release pump mechanism - Google Patents

Description

  The present invention relates to a foam generation / release unit that can be externally attached to a screw cap portion of a pump mechanism that does not have a foam generation function based on a mixing action of container contents and air during a discharge operation.

  Examples of liquid contents to be applied include soaps, disinfectants, cosmetics, emulsions, shaving foams, hair styling foams, detergents, hair dyes, shampoos, rinses, insecticides, and the like as described below.

  A content foam discharge pump mechanism in which a foam generating action portion for the liquid content of the pump container is formed on the outer portion of the screw cap of the pump mechanism is disclosed in Patent Document 1 below.

This content foam release pump mechanism
(11) Screw cap that is screwed into the opening of the container body
(12) Single stem that moves up and down the internal space of the cylinder (housing) attached to the screw cap
(13) Spout of discharge operation member attached to the downstream side of a single stem (discharge nozzle head)
(14) It is provided between the screw cap and the spout so as to surround the upper exposed portion of the single stem, and includes various components such as a bellows pump for sending foam generating air into the content passage area of the spout. ing.

Japanese Utility Model Publication No. 60-75268

  When assembling the conventional content foam discharge pump mechanism, it is necessary to individually incorporate the components such as the single stem, the spout, and the bellows pump into the screw cap in a predetermined procedure.

  That is, each component such as a single stem, a spout, and a bellows pump cannot be managed as a unit until the final assembly into the screw cap.

  Therefore, there has been a problem that it is difficult to efficiently manage each component in the production process until the content bubble release pump mechanism is completed.

Therefore, in the present invention,
(21) A stem that is coupled and integrated with a content discharge operation member (spout) having a content passage area to move up and down the housing, at least a spout-side downstream stem member, and a housing-side upstream stem After making it into a shape consisting of another member
(22) A foam generating action part is provided in a part of the entire content passage area of the content discharge operation member and the downstream stem member integrated therewith,
(23) an integrated object (content discharge operation member, downstream stem member) having the bubble generating action part;
An air valve for demarcating an air supply space area with the one body and supplying the air in the space area to the content passage area upstream of the bubble generating action section according to the operation mode setting operation The members are unitized,
That is, the components related to the generation of bubbles from the generation of bubbles to the outside space are separated from the dedicated passage mechanism for contents (not related to bubble generation and subsequent discharge paths) such as screw caps, housings and upstream stem members. Managed in units,
(24) This aims to facilitate and ensure management of the foam generation-related members in the production process of the content foam discharge pump mechanism, and to improve the production efficiency of the pump mechanism as a whole.

The present invention solves the above problems as follows.
[1] A foam generation / release unit (for example, a foam generation / release unit having a foam generation function based on the mixing action of the container contents and air and which can be incorporated into a screw cap (for example, a screw cap 12 described later) while being entirely made into a single article. A foam generation / release unit 20) to be described later,
A downstream stem member (for example, a downstream stem member 21 to be described later) in a mode in which a cylindrical single stem having a content passage area is divided;
A downstream passage area in which the inflow contents from the downstream stem member are mixed with air from an air storage space area (for example, an air storage space area C described later) and flow out to the discharge port during the content discharge operation ( For example, the downstream passage area 25c described later,
A cylindrical shape that is set on the inflow side to the downstream passage area and exhibits the mixing action of the inflow contents and the air, and the downstream stem member is attached on the inner side and the air passes through the outer peripheral surface side A mixing passage member (for example, a mixing passage member 22 described later),
And a discharge operation member (for example, a spout 25 and a mixing passage member 22 to be described later) having an outer annular wall (for example, an outer annular wall portion 25a to be described later) around the mixing passage member;
A foam generating mesh portion (for example, an upstream mesh member 23, a downstream mesh member 24, and a rectangular mesh portion 31 described later) provided in a part of a passage region of an integral part of the downstream stem member and the discharge operation member. , Large and small circular mesh part 32, honeycomb mesh part 33, identical circular mesh part 34, target mesh part 35),
An air inflow portion (for example, an air inflow hole portion 26d described later) that opens and closes in response to a content discharge operation of the discharge operation member, and an inner peripheral surface of the outer annular wall portion and a lower side of the downstream stem member A cylindrical air intake valve member (for example, an air intake valve member 26 described later) that is held in a sealed state in contact with each of the outer peripheral surfaces in a movable manner;
Each of the downstream stem member, the discharge operation member, the bubble generating action portion, and the air intake valve member is a separate member, and is movable to the inner peripheral surface of the air intake valve member. And is held in a state where it is in contact with the air so that it can pass through the air, and is held in a sealed state in contact with the inner peripheral surface of the mixing passage member so as to be movable. A cylindrical air supply valve member (for example, an air supply valve member 27 described later) that exhibits a valve action with the upper outer peripheral surface of the downstream stem member by the entire movement of the individual member according to the operation; With
The air storage space area is:
Set by the mixing passage member, the outer annular wall portion, the air intake valve member, the downstream stem member, and the air supply valve member, respectively, from the air inflow portion to the valve action portion. Closed space,
The thing of a structure aspect is used.
[2] In the above [1],
The air intake valve member is
An air inflow hole (for example, an air inflow hole 26d described later);
An air passage groove formed in an inner peripheral surface portion holding the air supply valve member (for example, an air passage groove 26h described later),
The downstream stem member is
An annular tapered surface (for example, an annular tapered surface 21c described later) having a valve function with the air supply valve member;
The mixing passage member is
An air outflow groove (for example, an air outflow groove 22a described later) is provided on an inner peripheral surface portion that engages with the downstream stem member.
The thing of a structure aspect is used.
[3] In the above [1] and [2],
The air intake valve member is
A portion to be engaged with the screw cap (for example, a protruding portion 26g described later) for restricting a moving range in the return direction when releasing the content discharge operation;
The thing of a structure aspect is used.
[4] In the above [1] to [3],
The downstream stem member is
Having an engaging portion for an upstream stem member (for example, an upstream stem member 13 described later) in a mode in which the single stem is divided;
The thing of a structure aspect is used.
[5] Contents in which the foam generating / releasing unit according to any one of [1] to [4] is incorporated in the screw cap and can be attached to a container body (for example, a container body 11 described later) in the assembled state. A foam release pump mechanism,
An upstream stem member (for example, an upstream stem member 13 to be described later) in a mode in which the single stem is divided is provided in a movable manner in a housing integral with the screw cap (for example, a housing 15 to be described later),
The upstream stem member is engaged with the downstream stem member;
The thing of a structure aspect is used.
[6] A content foam release pump mechanism in which the foam generation and release unit according to [3] is incorporated in the screw cap and can be attached to the container body in the assembled state,
The screw cap is
An engaging portion (for example, a concave portion 12b described later) with respect to the engaged portion is provided in an annular upright portion (for example, an annular standing portion 12a described later) on the upper surface.
The thing of a structure aspect is used.

  The present invention is directed to a foam generation / release unit, a content foam release pump mechanism, and a pump-type product including the content foam release pump mechanism.

  In this way, the present invention separates the stem member of the content foam discharge pump mechanism into separate members of the upstream stem member on the housing side and the downstream stem member on the discharge operation member side, and then generates the foam of the content. The components related to the discharge from the external space to the external space are made into a unit form different from the content dedicated passage mechanism (not related to the bubble generation and the subsequent discharge path) such as the screw cap, the housing, and the upstream stem member.

  Therefore, it is possible to facilitate and ensure the management of the foam generation-related member in the production process of the content foam discharge pump mechanism, and to improve the production efficiency of the entire pump mechanism.

It is explanatory drawing which shows a bubble production | generation discharge | release unit. It is explanatory drawing which shows the initial stage when a bubble production | generation discharge | release unit is integrated in a screw cap. It is explanatory drawing which shows the last stage when a bubble production | generation discharge | release unit is integrated in a screw cap. It is explanatory drawing which shows the stationary mode of the content bubble discharge | release pump mechanism (pump type product provided with). It is explanatory drawing which shows the operation mode of the content bubble discharge | release pump mechanism (the pump type product provided with). It is explanatory drawing which shows the stem bottom dead center state following the operation mode of FIG. It is explanatory drawing which shows the air inflow (replenishment) state to the air storage space area C and the container main body 11 at the time of returning to a stationary mode from the stem bottom dead center state of FIG. It is explanatory drawing which shows the mesh part for various types of foam production | generation.

  The form for implementing this invention is demonstrated using FIGS. 1-8.

  The components of the reference numbers with alphabets (for example, the annular upright portion 12a) used in the above drawings indicate that they are part of the components (for example, the screw cap 12) of the numeral portions of the reference numbers in principle.

Regarding the configuration of the container side (container body, screw cap, etc.) in FIGS.
11 is a container body containing various liquid contents to be released, which will be described later.
12 is a screw cap attached to the container body 11 in a threaded manner;
12a is an annular upright portion formed on the upper surface of the screw cap;
12b is a concave part for undercut engagement formed in the circumferential direction of the upper end part of the outer peripheral surface of the annular upright part,
13 is an upstream stem member that is arranged in an inner space area of a housing 15 (described later) integrated with the screw cap 12 so as to be vertically movable, and is urged upward by the elastic action of a coil spring;
14 is a coil spring that urges the upstream stem member upward,
15 is a housing for storing the contents to be released next time,
16 is a discharge valve which is disposed inside the housing 15 and is closed in the stationary mode;
A is a content storage space area set between the discharge valve 16 and a well-known suction valve (not shown) upstream of the internal space area of the housing 15;
Respectively.

In addition, regarding the configuration of the unit for foam generation and release of the contents externally attached to the screw cap 12 in FIGS.
Reference numeral 20 denotes a foam generation / release unit comprising components of a downstream stem member 21 to an air supply valve member 27 described later,
21 is a cylindrical downstream stem member fitted with the upper end side outer peripheral surface of the upstream stem member 13 and having a content passage portion;
21a is a small-diameter cylindrical portion formed on the upper side of the downstream stem member,
21b is a large-diameter cylindrical portion formed on the lower side of the downstream stem member,
21c is an annular taper surface which is formed on the outer peripheral surface of the range corresponding to the interface area of the small diameter cylindrical portion 21a and the large diameter cylindrical portion 21b and exhibits the valve action of air supply;
22 is a cylindrical mixing passage member that fits with the outer peripheral surface of the upper end side of the downstream stem member 21 and exhibits the mixing action of the contents and air;
22a is a plurality of air outflow grooves formed in the vertical direction of the inner peripheral surface portion that fits with the downstream stem member 21,
22b is an upper internal space that acts as a mixing passage for contents and air,
22c is a large-diameter lower inner peripheral surface extending upward from the lower end of the mixing passage member;
23 is an upstream mesh member (see FIG. 8) that is attached to the upper inner peripheral surface (upper inner space 22b) of the mixing passage member 22 and exhibits the foam generating action of the contents.
24 is a downstream mesh member (see FIG. 8) that is attached to the upper inner peripheral surface (upper inner space region 22b) of the mixing passage member 22 and exhibits the foam generating action of the contents.
Reference numeral 25 denotes an operation mode setting operation member fitted to the outer peripheral surface on the upper end side of the mixing passage member 22, and discharges the foam contents after passing through the mesh members 23 and 24 in the upper internal space region 22b to the external space region. Spout to do,
25a is an outer annular wall portion (annular hanging portion) in the vertical direction of the spout,
A plurality 25b is formed on the outer peripheral surface of the inner annular hanging portion (= the fitting portion with respect to the mixing passage member 22) in the vertical direction of the spout, and an air intake valve member 26, which will be described later, is set on the bubble generation / release unit 20 Stopper ribs in the vertical direction to determine the position (top position),
25c is a downstream passage area through which the contents mixed with air pass through the action of the mesh members 23, 24, etc.
26 strongly contacts the lower outer peripheral surface of the downstream stem member 21 and the inner peripheral surface of the spout 25 (outer annular wall portion 25a), and weakly contacts a skirt portion 27b of an air supply valve member 27 described later, And a cylindrical air intake valve member held in a state of being placed on the upper end portion of the cylindrical upright portion 12a of the screw cap 12.
26a is an outer cylindrical portion shaped to face the inner peripheral surface of the outer annular wall portion 25a,
26b is an inner cylindrical portion that enters the annular space between the annular upright portion 12a and the large-diameter cylindrical portion 21b,
26c is an annular ceiling portion in the form of connecting the upper end portions of the outer cylindrical portion 26a and the inner cylindrical portion 26b,
26d is a plurality of air inflow holes formed in the vertical direction of the annular ceiling,
26e is a reverse skirt portion that is formed on the upper end side of the outer cylindrical portion 26a and strongly contacts the inner peripheral surface of the spout 25 (outer cylindrical portion 25a).
26f is a plurality of air inflow grooves formed in the vertical direction of the inner peripheral surface of the outer cylindrical portion 26a;
26g is a protruding portion for undercut engagement formed in the circumferential direction of the lower end portion of the inner peripheral surface of the outer cylindrical portion 26a;
26h is a plurality of air passage groove portions formed in the vertical direction of the inner peripheral surface of the small diameter on the lower side of the inner cylindrical portion 26b;
26j is a skirt portion that is formed at the lower end portion of the small-diameter inner peripheral surface and strongly contacts the outer peripheral surface of the large-diameter cylindrical portion 21b.
27 abuts on the lower inner peripheral surface 22c of the mixing passage member 22 and the small-diameter inner peripheral surface portion of the air intake valve member 26 (the inner peripheral surface portion where the air passage groove 26h is formed). An air supply valve member that exhibits a valve action with the annular tapered surface 21c of the downstream stem member 21 in a state where
Reference numeral 27a denotes a reverse skirt portion which comes into contact with the lower inner peripheral surface 22c and exhibits a sealing action,
27b is a skirt that contacts the small diameter inner peripheral surface portion of the inner cylindrical portion 26b of the air intake valve member 26;
27c is an annular valve action portion that shifts from a close state (closed state) to the separated state with the annular tapered surface 21c as the spout 25 is pushed down;
B is set on the downstream side of the discharge valve 16, and is a content discharge passage composed of the internal space of the upstream stem member 13, the downstream stem member 21, the mixing passage member 22 and the spout 25,
C is a downstream stem member 21 (large-diameter cylindrical portion 21b, annular tapered surface 21c), mixing passage member 22, air intake valve member 26 and air supply valve member inside the outer annular wall portion 25a of the spout 25. 27, an air storage space area set between
Respectively.

In addition, regarding various meshes for content bubble generation in FIG.
31 is a square mesh part,
32 is a large and small circular mesh part,
33 is a honeycomb mesh part,
34 is the same circular mesh part,
35 is a target mesh portion,
Respectively.

  Here, the container body 11, screw cap 12, upstream stem member 13, housing 15, downstream stem member 21, mixing passage member 22, upstream mesh member 23, downstream mesh member 24, spout 25, for air intake The valve member 26, the air supply valve member 27, and the various mesh portions 31 to 34 are made of plastic made of polypropylene, polyethylene, polyacetal, nylon, polybutylene terephthalate, or the like.

  The coil spring 14 is made of metal or plastic, and the discharge valve 16 is made of rubber, metal or plastic.

The basic features of the illustrated content foam release pump mechanism are:
(31) Usually, a stem made of a single member is divided into an upstream stem member 13 on the housing side and a downstream stem member 21 on the spout side,
(32) Foam composed of the downstream stem member 21, the mixing passage member 22, the upstream mesh member 23, the downstream mesh member 24, the spout 25, the air intake valve member 26, and the air supply valve member 27. Produced production release unit 20,
That is.

The assembly procedure of the foam generation / release unit 20 of FIG.
(41) First, the upstream mesh member 23, the downstream mesh member 24 and the air supply valve member 27 are attached to the mixing passage member 22,
(42) Next, the unitary mixing passage member 22 is fitted to the inner annular hanging portion of the spout 25, and
(43) Next, the air intake valve member 26 is inserted into the spout 25 from the lower opening thereof, and the upper surface inner portion of the valve member is set in a state where it contacts the stopper rib 25b.
(44) Next, the downstream stem member 21 is inserted into the air intake valve member 26 from its lower opening, and the stem member is set in a state of fitting with the small-diameter inner peripheral surface portion of the mixing passage member 22. .

The air intake valve member 26 incorporated in the foam generation / release unit 20 is:
The inner diameter surface portion of the inner cylindrical portion 26b is in contact with the skirt portion 27b of the air supply valve member 27;
The reverse skirt portion 26e strongly contacts the inner peripheral surface of the outer annular wall portion 25a of the spout 25,
The skirt portion 26j is in strong contact with the outer peripheral surface of the large-diameter cylindrical portion 21b of the downstream stem member 21.
It is in a state.

  The air intake valve member 26 is reliably held in the state shown in FIG. 1 by the frictional action with each of the contact partners.

  Therefore, in the production and management process until the foam generation / release unit 20 is attached to the screw cap 12 and the upstream stem member 13 to become the final pump mechanism, the air intake valve member 26 is removed from the foam generation / release unit. It is unlikely that it will come off.

  2 and 3 show a state where the foam generation / release unit 20 of FIG. 1 is attached to the screw cap side.

The procedure is as follows.
(51) First, the unit is brought closer to the annular upright portion 12a of the screw cap 12, and the downstream stem member 21 is fitted to the upstream stem member 13 (the air intake valve member 26 at this stage is shown in FIG. 1)
(52) Next, the spout 25 is pushed down, and the stem member (upstream stem member 13 + downstream stem member 21) integrated therewith is lowered so as to resist the elastic force of the coil spring 14, thereby removing air. The projecting portion 26g of the intake valve member 26 is set to be positioned below the concave portion 12b of the annular upright portion 12a (the air intake valve member 26 at this stage remains at the uppermost position in FIG. 1).
(53) Next, the pushing operation of the spout 25 is released, and the bubble generation / release unit 20 and the upstream stem member 13 are lifted by the elastic return action of the coil spring 14, thereby causing the air intake valve member 26 to protrude. 26g is undercut engagement with the concave portion 12b of the annular upright portion 12a, and the head portion such as the spout 25 other than the air intake valve member 26 of the foam generating / releasing unit 20 is substantially raised. The still mode is set (see FIG. 4).

  In this way, the foam generation / release unit 20 is externally attached to the screw cap side of the pump container having no foam generation function.

  When the spout 25 or the like ascending (53) is lifted, the stem (upstream stem member 13 + downstream stem member 21), the mixing passage member 22, and the spout 25 are moved together.

  Further, the air supply valve member 27 is pushed up by the downstream stem member in a state in which the valve action portion 27 c is in contact with the annular tapered surface 21 c of the downstream stem member 21.

  In the stationary mode of the content bubble discharge pump mechanism of FIG. 4, as described above, the head portion such as the spout 25 (spout 25 and the mixing passage member 22 integrated therewith, the downstream stem member 21, the upstream stem member 13). Is moved upward due to the elastic action of the coil spring 14.

In this still mode,
(61) The content discharge passage B is cut off from the content storage space A of the housing 15 by the well-known valve closing action of the discharge valve 16,
(62) Air storage space area C is
Shut off from the content discharge passage B by the close action of the annular tapered surface 21c of the downstream stem member 21 and the valve action portion 27c of the air supply valve member 27; and
The air intake valve member 26 communicates with the external space region by a separation action between the air inflow hole portion and the upper end portion of the annular upright portion 12a.

  In other words, the contents storage space area A in the closed space state contains the contents to be released next time, communicates with the external space area, and is blocked from the contents discharge passage B in the air storage space area C. Contains foam-generating air.

  In addition, each of the contents to be discharged and the accommodation operation of air are performed at the time of the returning operation of the head unit to the stationary mode accompanying the release of the immediately preceding operation mode setting operation, as shown in FIG.

  As shown in FIG. 5, when the user presses the spout 25 and the head portion in the stationary mode is pushed down against the coil spring 14, the discharge valve 16 and the air supply valve (annular tapered surface 21c + valve action) Each part 27c) transitions to the release state (operating mode).

  In the transition process of FIG. 5, the volume of the content storage space A decreases as the head portion moves down, and the content pressure increases, so that the discharge valve 16 is moved from the closed state until then. Change to open state. In addition, a known content suction valve (not shown) maintains a closed state.

  As a result, the contents in the contents storage space area A are discharged to the external space area through the contents discharge passage B of “upstream stem member 13—downstream stem member 21—mixing passage member 22—spout 25”. Is done.

  Further, the air intake valve member 26 has a contact frictional action between the reverse skirt portion 26e and the outer annular wall portion 25a of the spout 25, and the large-diameter cylindrical portion 21b of the skirt portion 26j and the downstream stem member 21. Due to the abutting frictional action, it is linked downward.

  By this downward movement, the air inflow hole portion 26d of the air intake valve member 26 comes into contact with the upper end portion of the annular upright portion 12a and is closed.

  The air storage space area C in the closed state decreases in volume as the spout 25 moves downward, and the air pressure there increases.

  Therefore, the air supply valve member 27 moves up relative to the downstream stem member 21 and the mixing passage member 22 and moves until the upward annular stepped portion of the valve member contacts the lower end surface of the mixing passage member 22. Then, the air supply valve (annular tapered surface 21c + valve action portion 27c) opens.

  When the air supply valve is opened, the air in the air storage space C is “air passage groove portion 26h of the air intake valve member 26—space portion of the annular tapered surface 21c and the valve action portion 27c—mixing. It flows into the content discharge passage B through the air outlet groove 22a ”of the passage member 22.

  In this way, the contents in the contents storage space area A and the air in the air storage space area C flow into the contents discharge passage B as the spout 25 is pressed.

  The contents and air that have flowed into the contents discharge passage B are first bubbled when they are mixed, and the contents bubbles are subdivided by passing through the upstream mesh member 23 and the downstream mesh member 24, and are homogeneous. Turn into.

  Then, the subdivided and homogenized foam state contents are discharged to the external space through the downstream passage area 25c of the spout 25.

FIG. 6 shows the end stage of the operating mode of FIG.
That is, the head portion (the spout 25 and the mixing passage member 22 integrated therewith, the downstream stem member 21, the upstream stem member 13, and the air supply valve member 27) is moved to the bottom dead center.

  At this time, the lower end portion of the stopper rib 25b of the spout 25 is in contact with the upper surface inner portion of the air intake valve member 26.

In the operation mode end stage of FIG.
The positional relationship between the air supply valve member 27, the mixing passage member 22, and the downstream stem member 21 The contact / separation relationship between the air inflow hole portion 26d and the annular upright portion 12a is the same as in FIG. .

  FIG. 7 shows a return state to the stationary mode that occurs when the user releases the pressing operation of the spout 25.

  When the pressing operation of the spout 25 is released, the head portion (the spout 25 and the mixing passage member 22, the downstream stem member 21, and the upstream stem member 13 integrated therewith) is moved upward by the elastic action of the coil spring 14. Move to.

  Further, the air supply valve member 27 is lifted by the downstream stem member 21 in a state where the air supply valve (annular tapered surface 21c + valve operating portion 27c) remains in contact.

  Along with the release of the pressing operation, the air intake valve member 26 is moved upward by frictional engagement with the inner peripheral surface of the outer annular wall portion 25a of the spout 25, and the protruding portion 26g is a concave shape of the annular upright portion 12a. The state shifts to a state in which the undercut engagement with the portion 12 b, that is, the air inflow hole portion 26 d is separated from the annular upright portion 12 a of the screw cap 12.

As such a head portion and the air intake valve member 26 rise,
(71) As is well known, the discharge valve 16 changes from the previous open state to the closed state,
(72) Since the volume of the content storage space area A of the housing 15 increases and the space area becomes a negative pressure with respect to the inside of the container body 11, the suction valve (not shown) is closed until then. As a result, the content of the container body 11 flows from the suction valve into the content storage space A as shown by the arrows in the figure,
(73) In order to prevent the negative pressure inside the container body 25 due to the inflow of the contents, the outside air is applied to the opposing surface portion of the annular upright portion 12a and the air supply valve member 27 as shown by the arrows in the figure. Flows into the container body through the space,
(74) Further, since the volume of the air storage space area C increases and becomes negative pressure with respect to the external space area, the outside air flows into the air inflow hole of the air intake valve member 26 as shown by the arrows in the drawing. It flows into the space area for air storage from the part 26d.

  As is well known, the inflow of contents into the content storage space area A and the outside air inflow into the container body 11 and the air storage space area C are completed, and the apparatus returns to the stationary mode of FIG. .

  Needless to say, the present invention is not limited to the above embodiment, and a holding portion (such as a protruding portion) for the reverse skirt portion 26e of the air intake valve member 26 of the bubble generation / release unit 20 of FIG. You may make it provide in the inner peripheral surface of the outer side annular wall part 25a.

  This is because the valve member is inadvertently dropped from the unit before being attached to the upstream stem member 14, together with the frictional action between the inner peripheral surface of the outer annular wall portion 25a and the upper end portion of the reverse skirt portion 26e. This is to prevent it. The action of the holding part is of course such that the holding state is released when the bubble generating / releasing unit 20 shifts from the final stage of attachment shown in FIG. 3 to the stationary mode shown in FIG.

Moreover, you may make it the foam production | generation discharge | release unit which consists of the following structure aspects.
(81) A tilt type rotating member is used as the operation mode setting operation section.
(82) An air supply hole corresponding to the air outflow groove 22a is formed in the upper peripheral surface portion of the downstream stem member 21.
(83) An air outflow groove portion (≈air outflow groove portion 22a) to the content discharge passage B is formed in the outer peripheral surface portion of the downstream stem member 21.
(84) The upstream mesh member 23 and the downstream mesh member 24 are provided in the content discharge passage B of the downstream stem member 21.

  Pump type products to which the present invention is applied include cleaning agents, cleaning agents, antiperspirants, cooling agents, muscle anti-inflammatory agents, hair styling agents, hair treatment agents, hair dyes, hair restorers, cosmetics, shaving foams, foods , Droplets (such as vitamins), pharmaceuticals, quasi drugs, paints, horticultural agents, repellents (insecticides), cleaners, deodorants, laundry glue, urethane foam, fire extinguishers, adhesives, lubrication There are various uses such as agents.

  The contents stored in the container body can be in various forms such as liquid, cream, gel, and the components blended in the contents include, for example, powders, oil components, alcohols, interfaces Activators, polymer compounds, active ingredients according to each application, water and the like.

  As the powder, metal salt powder, inorganic powder, resin powder, or the like is used. For example, talc, kaolin, aluminum hydroxychloride (aluminum salt), calcium alginate, gold powder, silver powder, mica, carbonate, barium sulfate, cellulose, and a mixture thereof are used.

  As the oil component, silicone oil, palm oil, eucalyptus oil, camellia oil, olive oil, jojoba oil, paraffin oil, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and the like are used.

  Examples of the alcohol include monovalent lower alcohols such as ethanol, monovalent higher alcohols such as lauryl alcohol, and polyhydric alcohols such as ethylene glycol, glycerin, and 1,3-butylene glycol.

  Surfactants include anionic surfactants such as sodium lauryl sulfate, nonionic surfactants such as polyoxyethylene oleyl ether, amphoteric surfactants such as lauryldimethylaminoacetic acid betaine, and cations such as alkyltrimethylammonium chloride. A surfactant is used.

  As the polymer compound, methyl cellulose, gelatin, starch, casein, hydroxyethyl cellulose, xanthan gum, carboxyvinyl polymer, or the like is used.

  Active ingredients according to each application include anti-inflammatory analgesics such as methyl salicylate and indomethacin, disinfectants such as sodium benzoate and cresol, insect repellents such as Hillesroid and diethyltoluamide, antiperspirants such as zinc oxide, Softeners such as camphor and menthol, anti-asthma drugs such as ephedrine and adrenaline, sweeteners such as sucralose and aspartame, adhesives and paints such as epoxy resin and urethane, dyes such as paraphenylenediamine and aminophenol, dihydrogen phosphate Use a fire extinguishing agent such as ammonium or sodium bicarbonate.

  Further, other than the above-mentioned contents, suspending agents, ultraviolet absorbers, emulsifiers, humectants, antioxidants, sequestering agents, etc. can be used.

(11 to 16, A is used in FIGS. 2 to 7)
11: container main body 12: screw cap 12a: annular upright part 12b: concave part for undercut engagement 13: upstream stem member 14: coil spring 15: housing 16: discharge valve A for contents: space area for contents storage

(20 to 27c, B and C are used in FIGS. 1 to 7)
20: Bubble generation / release unit 21: Downstream stem member 21a: Small-diameter cylindrical portion 21b: Large-diameter cylindrical portion 21c: Annular tapered surface 22: Mixing passage member 22a: Air outlet groove 22b: Upper internal space region 22c : Lower inner peripheral surface 23: Upstream mesh member 24: Downstream mesh member 25: Spout 25a: Outer annular wall portion 25b: Stopper rib 25c: Downstream passage area 26: Air intake valve member 26a: Outer cylindrical shape Portion 26b: Inner cylindrical portion 26c: Annular ceiling portion 26d: Air inflow hole portion 26e: Reverse skirt portion 26f: Air inflow groove portion 26g: Undercut engagement protrusion 26h: Air passage groove portion 26j: Skirt portion 27: Air supply valve member 27a: Reverse skirt portion 27b: Skirt portion 27c: Annular valve action portion B: Contents discharge passage C: Air storage space area

(31 to 35 are used only in FIG. 8)
31: Square mesh portion 32: Large and small circular mesh portion 33: Honeycomb mesh portion 34: Same circular mesh portion 35: Target mesh portion

Claims (7)

A foam generation / release unit having a foam generation function based on a mixing action of container contents and air, and can be incorporated into a screw cap while being entirely made into a single article,
A downstream stem member of a mode in which a cylindrical single stem having a content passage area is divided;
Downstream passage region inflow contents from the downstream side stem member during content discharge operation flows out to the outlet is mixed with air from the air reservoir space area,
A cylindrical shape that is set on the inflow side to the downstream passage area and exhibits the mixing action of the inflow contents and the air, and the downstream stem member is attached on the inner side and the air passes through the outer peripheral surface side A mixing passage member,
And a discharge operating member having an outer annular wall around the mixing channel member ;
A mesh part for foam generation provided in a part of a passage region of an integral part of the downstream stem member and the discharge operation member;
It has an air inflow portion that opens and closes in response to the content discharge operation of the discharge operation member, and is movable to each of the inner peripheral surface of the outer annular wall portion and the lower outer peripheral surface of the downstream stem member. A cylindrical air intake valve member that is maintained in a sealed state in contact;
Each of the downstream stem member, the discharge operation member, the bubble generating action portion, and the air intake valve member is a separate member, and is movable to the inner peripheral surface of the air intake valve member. And is held in a state where it is in contact with the air so that it can pass through the air, and is held in a sealed state in contact with the inner peripheral surface of the mixing passage member so as to be movable. A tubular air supply valve member that exhibits a valve action with the upper outer peripheral surface of the downstream stem member by the entire movement of the individual member according to the operation,
The air storage space area is:
Set by the mixing passage member, the outer annular wall portion, the air intake valve member, the downstream stem member, and the air supply valve member, respectively, from the air inflow portion to the valve action portion. Closed space,
A foam generating and releasing unit characterized by the above. The air intake valve member is
Holes for air inflow,
An air passage groove formed in an inner peripheral surface portion holding the air supply valve member, and
The downstream stem member is
An annular tapered surface having a valve function with the air supply valve member;
The mixing passage member is
It has an air outflow groove on the inner peripheral surface portion that engages with the downstream stem member,
The foam generating and releasing unit according to claim 1 . The air intake valve member is
Having a portion to be engaged with the screw cap for restricting a moving range in the return direction when releasing the content discharge operation;
The foam generating / releasing unit according to claim 1 or 2 , characterized in that The downstream stem member is
Having an engaging portion for the upstream stem member of the aspect in which the single stem is divided;
The foam generating / releasing unit according to any one of claims 1 to 3 . A foam generating and discharging unit according to any one of claims 1 to 4 , wherein the foam generating and discharging unit is incorporated in the screw cap and can be attached to the container body in the assembled state.
An upstream stem member in a form in which the single stem is divided is provided in a movable manner in a housing integral with the screw cap,
The upstream stem member is engaged with the downstream stem member;
The content foam discharge pump mechanism characterized by the above-mentioned. A foam generating and discharging unit according to claim 3 , wherein the foam generating and discharging unit is incorporated in the screw cap and can be attached to the container body in the assembled state.
The screw cap is
It has an engaging part for the engaged part in the annular upright part on the upper surface,
The content foam discharge pump mechanism characterized by the above-mentioned. The content foam discharge pump mechanism according to claim 5 or 6 is provided, and the liquid content to be discharged is accommodated.
This is a pump-type product.

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