JP5695502B2 - Foam dispenser - Google Patents

Description

  The present invention relates to a foam dispenser capable of dispensing a mixture of liquid and air as foam-like contents by passing through two meshes.

  As a conventional foam dispenser, for example, it has a stopper body attached to the mouth of the container body, and a foaming device fixed to the stopper body and provided with a net or a nonwoven fabric. Similarly, there is one in which an auxiliary cylinder provided with a net or a nonwoven fabric is interposed (for example, see Patent Document 1).

Japanese Utility Model Publication No. 63-13810

  Such a foam dispenser is adjusted so that the same foam quality can be obtained regardless of how the user uses by determining the mixing ratio of the air and the content liquid. On the other hand, this inventor discovered that the foam quality of the content poured out changes according to the inflow amount of air.

  However, the conventional foam dispenser cannot freely change the opening for introducing outside air. For this reason, in order to change a foam quality according to a user's request | requirement and a use, it is necessary to change the design of the extractor itself separately.

  An object of the present invention is to provide a novel foam dispenser that can easily dispense with a foam quality according to the purpose without changing the design of the dispenser itself. .

The present invention relates to a nozzle head having a nozzle and a cylindrical body part depending from the nozzle and having a mesh interposed in an internal passage formed inside, a fixed part fixed to the cylindrical part of the nozzle head, and the fixed part A mesh holder that has a cylindrical portion connected to the inner passage formed inside and a mesh interposed therebetween, an outer cylindrical portion that surrounds the cylindrical portion of the mesh holder, and a cylindrical portion of the mesh holder that is rotatable inside A pipe connector having an inner cylinder part that forms an internal passage that is held and communicates with a pipe in the container inside,
The inner circumferential surface of the cylindrical body portion of the mesh holder and the outer circumferential surface of the inner cylindrical portion of the pipe connector are each configured with a sliding surface that can slide along the axial direction,
On the inner peripheral surface of the cylindrical body portion of the mesh holder, at least one groove portion is formed which forms an opening at the upper end of the inner cylindrical portion of the pipe connector that allows the internal passage of the mesh holder to communicate with the outside.
Each of the cylindrical body portion of the mesh holder and the outer cylindrical portion of the pipe connector is provided with a screwing portion that advances and retracts in the axial direction by rotating around the axial line.

  According to the present invention, it is preferable to form a through hole in the outer cylinder portion of the pipe connector.

  In the present invention, the nozzle head is provided with an outer shell portion that surrounds the mesh holder and seals the mouth of the container, and a through hole is formed in the outer shell portion, and only introduction of outside air from the through hole is performed. Allowable check valves can be provided.

  In the present invention, by rotating the mesh holder or the pipe connector clockwise or counterclockwise around the axis, the mesh holder and the pipe connector move forward and backward along the axial direction. The area of the opening formed at the upper end and allowing the internal passage of the mesh holder to communicate with the outside can also be freely changed. That is, without changing the design of the dispenser itself, the inflow amount of air can be freely changed by rotating the mesh holder or the pipe connector clockwise or counterclockwise around the axis.

  Therefore, according to the present invention, it is possible to provide a novel bubble dispenser that can easily dispense with the foam quality according to the purpose without changing the design of the dispenser itself.

It is sectional drawing which shows the state which attached the bubble extractor which is one form of this invention to the container main body, and made the inflow amount of air the minimum. It is the principal part perspective view which showed only the mesh holder which concerns on the same bubble extractor in the XX cross section of FIG. FIG. 3 is an exploded perspective view of FIG. 2. It is sectional drawing which shows the state which made the amount of inflows of air the same amount | forms of the bubble extractor. It is sectional drawing which shows the state which made the inflow amount of air into the same bubble extractor.

  Hereinafter, a foam dispenser which is one embodiment of the present invention will be described in detail with reference to the drawings.

  Reference numeral 1 is a foam dispenser made of synthetic resin. The foam dispenser 1 is attached to the mouth 31 of the container body 30. The container main body 30 is a blow molded bottle made of synthetic resin, and has a trunk portion 33 that is connected to the mouth portion 31 via a shoulder portion 32 and can be deformed and restored. Inside the container main body 30, a filling space S for the content liquid communicating with the outside through the mouth portion 31 is formed.

  Reference numeral 2 denotes a nozzle head attached to the container body 30. The nozzle head 2 has a nozzle 2a that extends laterally with respect to the axis O, and a cylindrical body 2b that hangs down integrally from the nozzle 2a along the axis O, on the inner side of the tip of the nozzle 2a. An internal passage 21 is formed through the opening Aa formed at the end and the opening Ab formed at the end of the cylindrical body 2b.

  The internal passage 21 includes a passage 21a that passes through the inside of the nozzle 2a and a passage 21b that is formed inside the cylindrical portion 2b through the passage 21a. An annular rib 2r1 that circulates around the axis O is provided in the passage 21b.

  Reference numeral 5 denotes a mesh ring fixed to the nozzle head 2. The mesh ring 5 is an existing one in which a mesh 5b is fixed to an end surface of a cylindrical body 5a made of synthetic resin. The mesh ring 5 is fitted and held in the passage 21b by hooking the cylindrical body 5a to the annular rib 2r1.

  Reference numeral 6 denotes a synthetic resin mesh holder fixed to the nozzle head 2. The mesh holder 6 integrally includes a fixed portion 6a fixed to a cylindrical body portion (hereinafter, “nozzle head cylindrical portion”) 2b of the nozzle head 2 and a cylindrical body portion 6b connected to the fixed portion 6a.

  Inside the mesh holder 6, there is formed an internal passage 22 through which an opening Ac formed at the end of the fixing portion 6a and an opening Ad formed at the end of the cylindrical portion 6b are passed. The internal passage 22 includes a nozzle head fitting portion 22a for fitting and holding the nozzle head cylinder portion 2b through the opening Ac, a mesh ring fitting portion 22b having a smaller diameter than the nozzle head fitting portion 22a, and the mesh ring. A diameter-enlarged portion 22d that forms a gap between the pipe connector fitting portion 22c having a smaller diameter than the fitting portion 22b and the pipe connector 7 and expands toward the upstream side where the content liquid and air are pumped, and this widened portion. It is composed of an open portion 22e that allows the diameter portion 22d to communicate with the outside.

  The nozzle head fitting portion 22a has annular ribs 6r2 and 6r3 that circulate around the axis O, and these annular ribs 6r2 and 6r3 are hooked on the annular ribs 2r2 and 2r3 provided on the nozzle head cylinder portion 2b, so that the nozzle head The cylinder body 2b is fitted and held. Thereby, the mesh holder 6 is fixed to the nozzle head 2 so that the internal passage 22 communicates with the internal passage 21.

  Further, the mesh holder 6 fits and holds the mesh ring 5 on the inside thereof, similarly to the nozzle head 2 side, at the mesh ring fitting portion 22b. As a result, internal passages 21 and 22 in which two mesh rings 5 are arranged at an interval are formed inside the nozzle head 2 and the mesh holder 6.

  Reference numeral 7 denotes a pipe connector made of synthetic resin. The pipe connector 7 integrally includes an outer cylindrical portion 7a surrounding a cylindrical portion (hereinafter, “mesh holder cylindrical portion”) 6b of the mesh holder 6 and an inner cylindrical portion 7b communicating with the mesh holder cylindrical portion 6b. .

  As described above, the inner cylindrical portion (hereinafter, “pipe connector inner cylindrical portion”) 7b of the pipe connector 7 is fitted and held in the pipe connector fitting portion 22c formed inside the mesh holder cylindrical portion 6b. For this reason, the outer peripheral surface 7f of the pipe connector inner cylindrical portion 7b and the inner peripheral surface 22f of the mesh holder cylindrical portion 6b are each a smooth surface and are configured as sliding surfaces that can slide around the axis O. ing. As a result, the pipe connector inner cylinder portion 7b is attached to the mesh holder 6 while ensuring sealing between the inner peripheral surface 22f of the pipe connector fitting portion 22c and the outer peripheral surface 7f of the pipe connector inner cylinder portion 7b. On the other hand, it can be slid around the axis O.

  Furthermore, an internal passage 23 is formed on the inner side of the pipe connector inner cylinder portion 7b, through which an opening Ae leading to the internal passage 22 of the mesh holder 6 and an opening Af for inserting the pipe P are formed. As a result, the inner solution pumped from the filling space S through the passage 24 of the pipe P can be passed through the mesh ring 5. The internal passage 23 is provided with a plurality of vertical ribs 7r1 at intervals around the axis O. As a result, the rib 7r1 restricts the insertion of the pipe P inserted from the opening Af.

  On the other hand, the mesh holder cylinder part 6b and the outer cylinder part (hereinafter referred to as “pipe connector outer cylinder part”) 7a of the pipe connector 7 are rotated around the axis O to advance and retract in the direction of the axis O. Screwed portions 6s and 7s are provided. 6s of screwing parts are comprised by the thread part formed in the outer peripheral surface of the mesh holder cylinder part 6b. 7s of screwing parts are comprised by the thread part formed in the internal peripheral surface of the pipe connector outer cylinder part 7a.

In this embodiment, the pipe connector outer cylinder portion 7 a is limited in its screwing amount by contacting the ends of the pipe connector outer cylinder portion 7 a with the plurality of vertical ribs 6 r ₄ provided on the mesh holder 6. Further, the pipe connector outer cylinder portion 7a is limited in its drawing amount by the annular rib 7r5 provided on the inner peripheral surface thereof contacting the annular rib 6r5 provided on the outer peripheral surface of the mesh holder cylindrical body portion 6b. Yes.

  As shown in FIGS. 2 and 3, the mesh holder 6 has four groove portions 6g extending along the axis O at intervals around the axis O on the inner peripheral surface 22f of the cylindrical portion 6b. Is formed. As shown in FIG. 3, one of the groove portions 6g extends through the enlarged diameter portion 22d so as to communicate with the open portion 22e, and the other portion is connected to the pipe connector inner cylinder portion 7b as shown in FIG. It extends so as to form an opening Ag exposed from the upper end 7e downstream of the upper end 7e. Thereby, the groove part 6g forms the four external air introduction paths 25 which connect the mesh holder internal channel | path 22c to the external world between the outer peripheral surfaces 7f of the pipe connector inner cylinder part 7b.

  The outside air introduction path 25 can be communicated with the filling space S through a gap formed between the mesh holder cylinder part 6b and the pipe connector outer cylinder part 7a, but in this embodiment, the pipe connector outer cylinder part 7a The filling space S is communicated through the through-hole 26 formed in the above. Thereby, the mixture of the internal solution pumped through the passage 24 of the pipe P and the outside air (air) in the filling space S can be passed through the mesh ring 5.

  As shown in FIG. 1, the nozzle head 2 is integrally provided with an outer shell portion 2 c so as to surround the mesh holder 6. The outer shell portion 2 c has an outer cylinder portion 2 c (1), and is provided with a screw portion 2 d that is screwed into a screw portion 34 formed in the mouth portion 31. Thereby, the nozzle head 2 can be detachably attached to the mouth portion 31 by rotating clockwise or counterclockwise around the axis O.

  In addition, the outer shell part 2c has an inner cylinder part 2c (2) surrounded by the outer cylinder part 2c (1). The inner cylinder portion 2 c (2) is fitted to the inner peripheral surface 31 f of the mouth portion 31. Thereby, the outer shell part 2 c seals the mouth part 31.

  Furthermore, the outer shell portion 2 c is formed with a through hole 27 that allows the filling space S to communicate with the outside through the mouth portion 31. Reference numeral 8 is a check valve that allows only the introduction of outside air from the through hole 27.

  The check valve 8 is made of synthetic resin, and is integrally provided with a mounting cylinder 8a fitted and held in the mesh holder 6 and an annular wall 8b provided around the mounting cylinder 8a over the entire circumference. Yes.

  The annular wall 8b is an inclined wall whose diameter increases upward (downstream) toward the outer shell portion 2c, and is deformed and restored with respect to the inner peripheral surface 2f (2) of the inner cylindrical portion 2c (2). Is possible contact. As a result, the check valve 8 can partition the through hole 27 and the filling space S and can only allow the introduction of outside air from the through hole 27, and can crush the body portion 33 of the container body 30. Even if the content liquid is pumped through the pipe P by repeating the return, the container body 30 is not crushed.

  Note that the check valve 8 is not limited to the one that spans between the outer shell portion 2c and the mesh holder fixing portion 6a as in this embodiment, and is provided directly on the outer shell portion 2c, for example. It is also possible to configure with an elastic tongue piece that opens and closes the through hole 27.

In this embodiment, the mesh holder 6 or the pipe connector 7 is rotated clockwise or counterclockwise around the axis O in a state where the foam dispenser 1 is removed from the container main body 30, thereby mutually along the axis O direction. As shown in FIG. 1, when the upper end of the pipe connector outer cylinder portion 7a contacts the vertical rib 6r ₄ of the mesh holder 6, the height of the opening Ag is minimized (opening Ag). from the area state is minimized), as shown in FIG. 4, that the upper end of the pipe connector outer cylindrical portion 7a are separated by a distance L1 along the longitudinal rib 6r ₄ mesh holder 6 to the axis O, the opening Ag After the state where the height of the pipe connector is medium (the state where the area of the opening Ag is medium), the upper end of the pipe connector outer cylinder portion 7a is connected to the vertical rib 6r of the mesh holder 6 as shown in FIG. distance along the ₄ the axis O By increasing the inflow amount of air in the range up to the state where the height of the opening Ag is maximized (the state where the area of the opening Ag is maximized) by separating by L2, the reverse process is performed. The amount of air inflow can be reduced.

  As described above, in this embodiment, the area of the opening Ag formed at the upper end 7e of the pipe connector inner cylinder portion 7b and allowing the internal passage 22 of the mesh holder 6 to communicate with the outside can be freely changed. That is, in this embodiment, it is possible to freely change the inflow amount of air without changing the design of the dispenser itself.

  Therefore, according to the present embodiment, it is possible to simply perform the extraction with the foam quality according to the purpose without changing the design of the extractor itself. According to the present invention, the distance between the meshes 5b can be adjusted at the time of assembly before product shipment or by the user.

Moreover, if the through-hole 26 is formed in the pipe connector outer cylinder part 7a like this form, and air is introduce | transduced through the opening part Ag from the external air introduction path 25, according to the objective, ensuring air more reliably. It is possible to simply pour out with the foam quality.
Further, as in this embodiment, the nozzle head 2 is provided with an outer shell portion 2c that surrounds the mesh holder 7 and seals the mouth portion 31, and a through hole 27 is formed in the outer shell portion 2c. If the check valve 8 that allows only the introduction of the outside air from 27 is provided, the container body 30 can surely pump the content liquid while ensuring the introduction of the outside air (air) into the filling space S. Thus, it is possible to easily carry out the pouring with a foam quality corresponding to the purpose.

  The above description only shows one embodiment of the present invention, and various modifications can be made within the scope of the claims. For example, in the check valve 8, the pipe P can be provided integrally with the pipe connector 7. Although this embodiment has been described as a foam generating and dispensing device directly attached to a so-called squeeze container, the foam generating and dispensing device according to the present invention can be applied to a nozzle head of a cylinder pump fixed to the mouth of the container. it can.

  The present invention can be applied to various types as long as it is a foam dispenser that dispenses a mixture of the content liquid and air from two nozzles in a foam form. Also, the type of content liquid is not limited.

DESCRIPTION OF SYMBOLS 1 Squeeze former 2 Nozzle head 2a Nozzle 2b Nozzle head cylindrical part 2c Outer shell part 2r1 Annular rib 2r2 Annular rib 2r3 Annular rib 5 Mesh ring 5a Cylindrical body 5b Mesh 6 Mesh holder 6a Fixed part 6b Mesh holder cylindrical part

6g Groove 6r2 Annular rib 6r3 Annular rib 6r4 Annular rib 6s Threaded part (screwed part)
7 Pipe connector 7a Pipe connector outer cylinder part 7b Pipe connector inner cylinder part 7e Pipe connector inner cylinder part upper end 7s Screw part (screwing part)
7r1 Vertical rib 8 Check valve 21 Internal passage 22 Internal passage 22a Nozzle head fitting portion 22b Mesh ring fitting portion 22c Pipe connector fitting portion 22d Expanded portion 22e Opening portion 23 Internal passage 24 Pipe passage 25 Outside air introduction passage 26 Through Hole 27 Through hole 30 Container body 31 Mouth part 32 Shoulder part 33 Body part Ag opening part

Claims (3)

A nozzle head having a nozzle and a cylindrical body part hanging from the nozzle, having a mesh interposed in an internal passage formed inside, a fixed part fixed to the cylindrical part of the nozzle head, and a cylindrical body connected to the fixed part A mesh holder having a mesh interposed in an internal passage formed inside, an outer cylindrical portion surrounding the cylindrical portion of the mesh holder, and a cylindrical holder portion of the mesh holder that is rotatably held inside A pipe connector having an inner cylinder part that forms an internal passage that communicates with the pipe in the container inside,
The inner circumferential surface of the cylindrical body portion of the mesh holder and the outer circumferential surface of the inner cylindrical portion of the pipe connector are each configured with a sliding surface that can slide along the axial direction,
On the inner peripheral surface of the cylindrical body portion of the mesh holder, at least one groove portion is formed which forms an opening at the upper end of the inner cylindrical portion of the pipe connector that allows the internal passage of the mesh holder to communicate with the outside.
A foam dispenser characterized in that a threaded portion is provided in the cylindrical body portion of the mesh holder and the outer cylindrical portion of the pipe connector so as to advance and retract in the axial direction by rotating around the axial line.   2. The foam dispenser according to claim 1, wherein a through hole is formed in an outer cylinder portion of the pipe connector. In claim 2, the nozzle head is provided with an outer shell portion that surrounds the mesh holder and seals the mouth of the container,
A foam dispenser characterized in that a through-hole is formed in the outer shell and a check valve is provided that allows only the introduction of outside air from the through-hole.

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