JP2013075671A - Ejection container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ejection container improved in convenience.SOLUTION: The ejection container includes: a container body 4 having a highly flexible inner container 2 storing the content and deformed to collapse as the content decreases, and an outer container 3 containing the inner container 2; an ejector 6 mounted on a mouth part 4a of the container body 4 and including an ejection port 5 for ejecting the content; a base 7 provided below the bottom side of the container body 4; a holding member 8 provided between the container body 4 and the base 7 and holding the container body 4 on the base 7 so as to move downward while being biased upward on the mouth part 4a side; and an air supply member 10 provided in the base 7 and shrunk along with the downward movement of the container body 4 to introduce air to a space between the outer container 3 and the inner container 2 from an air inlet 9 formed in the outer container 3.

Description

  The present invention relates to a discharge container.

As a conventional discharge container, for example, as shown in the following Patent Document 1, a container main body in which contents are accommodated, and a discharge device that is attached to a mouth portion of the container main body and that discharges contents. A base provided below the bottom side of the container main body, a movable wall portion slidably contacted with the inner peripheral surface of the container main body toward the upper side of the mouth side, and for pushing up the movable wall portion There is known a container including a container (gas can) in which high-pressure gas to be injected as the contents are reduced is enclosed.
In this discharge container, high-pressure gas is ejected from the gas can and the movable wall is moved upward with respect to the container body, thereby reducing the volume in the container body and increasing the internal pressure. By operating the container, the contents are discharged from the discharge port.

JP 2010-036922 A

  However, in the above-described conventional discharge container, since the inside of the container body is pressurized by jetting high-pressure gas from the gas can, it is necessary to replace the gas can after consuming the gas in the gas can. There was room for improvement in improving.

  This invention is made | formed in view of such a situation, Comprising: It aims at providing the discharge container which can improve usability.

In order to solve the above problems, the present invention proposes the following means.
The discharge container of the present invention is a container main body having a flexible inner container that accommodates the contents and deforms by deformation as the contents are reduced, and an outer container in which the inner container is installed; A discharger that is attached to the mouth portion of the container body and has a discharge port for discharging contents, a base provided below the bottom side of the container body, and between the container body and the base Provided, a holding member that holds the container body in a state of being urged upward on the mouth side with respect to the base, and is provided in the base, and accompanying the downward movement of the container body And an air supply member capable of introducing air between the outer container and the inner container through an air inlet formed in the outer container.

  In the discharge container according to the present invention, when the contents stored in the inner container of the container main body are discharged, the container main body is previously moved downward with respect to the base. As a result, the air supply member is contracted (expanded / reduced), and air is introduced from the air supply member through the air inlet of the outer container between the outer container and the inner container of the container body, and the inner container is reduced. Pressure is applied in the direction of deformation, and the internal pressure of the inner container becomes positive. By operating the discharger from this state, the contents are discharged from the discharge port.

  In addition, the volume of the inner container is reduced and deformed by discharging the contents, and the inner pressure of the inner container is lowered. However, by moving the container body downward again with respect to the base, the outer container and the inner container are moved from the air supply member. The air is newly introduced between the two and the internal pressure of the inner container becomes positive, and the next discharge of the contents becomes possible.

  Thus, according to the present invention, the internal pressure of the inner container can be increased by a simple operation of moving the container body downward relative to the base. That is, for example, as in the prior art, it is not necessary to use a gas can in order to increase the internal pressure in the container body, and therefore it is not necessary to replace the gas can. Therefore, the discharge container of the present invention is improved in usability.

  Further, in the discharge container of the present invention, the holding member is disposed on the base so as to be movable downward in an upwardly biased state, and includes a support cylinder that supports the container body, and a shaft around the support cylinder. It is good also as providing the fixing member which is rotatably arrange | positioned and fixes the said container main body so that attachment or detachment is possible with respect to this support cylinder with this rotation.

  In this case, since the container main body can be fixed to the support cylinder by a simple operation of rotating the fixing member around the axis with respect to the support cylinder, the container main body can be easily attached to and detached from the support cylinder. Further, as described above, when the container main body is moved downward with respect to the base, the posture of the container main body is stabilized, so that the operation is easy to perform.

  Further, in the discharge container according to the present invention, the outer container includes an introduction tube in which the air introduction port is formed, and the fixing member includes a plurality of members that can hold the introduction tube from outside in the radial direction of the introduction tube. A first elastic part that connects these holding parts to each other in the circumferential direction of the introduction cylinder, and a second elastic part that supports these holding parts so that they can be separated toward the outside in the radial direction. The support cylinder is configured to push the first elastic part radially inward while slidingly contacting the first elastic part as the fixing member rotates with respect to the support cylinder. It is good also as providing the pushing-in part which spaces apart the said clamping parts toward radial direction outer side while elastically deforming a part.

  In this case, the container body can be detachably fixed to the support cylinder using a simple configuration.

  According to the discharge container of the present invention, usability is improved.

It is sectional drawing which shows the discharge container which concerns on one Embodiment of this invention. It is a figure which expands and shows the discharge device vicinity of the discharge container of FIG. It is a figure which expands and shows the holding member and base vicinity of the discharge container of FIG. It is a top view which shows the holding member and base of the discharge container of FIG. In the discharge container of FIG. 1, it is a figure explaining the state which moved the container main body and the holding member below with respect to the base. It is a figure explaining the state which operated the discharge device in the discharge container of FIG. FIG. 5 is a top view for explaining a state in which the fixing member is rotated about the axis with respect to the support cylinder in the holding member shown in FIG. 4.

Hereinafter, a discharge container according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the discharge container 1 includes a flexible inner container 2 that accommodates the contents and squeezes and deforms as the contents decrease, and an outer container in which the inner container 2 is installed. 3, a container 6 that is attached to the mouth portion 4 a of the container body 4, and has a discharge port 5 that discharges contents, and a cylindrical shape that is provided below the bottom side of the container body 4. A holding member 8 provided between the base 7 and the container main body 4 and the base 7 so as to be movable downward while the container main body 4 is urged upward on the mouth 4a side with respect to the base 7. The air is provided between the outer container 3 and the inner container 2 from the air inlet 9 formed in the outer container 3 by being contracted with the downward movement of the container body 4. The air supply member 10 which can introduce | transduce is provided.
Here, the container main body 4 is formed in a bottomed cylindrical shape, and the container main body 4 and the base 7 are arranged coaxially with the common shaft.
Hereinafter, this common axis is referred to as the container axis O, the mouth 4a side of the container body 4 along the container axis O direction is referred to as the upper side, the base 7 side is referred to as the lower side, and the direction perpendicular to the container axis O is the diameter. The direction that goes around the container axis O is called the circumferential direction.

The container body 4 is a double container in which the inner container 2 and the outer container 3 are formed separately. The container body 4 is formed, for example, by blow-molding a preform in combination (internal and external).
As shown in FIG. 2, the outer peripheral surface of the portion constituted by the outer container 3 in the mouth portion 4 a of the container main body 4 protrudes radially outward and extends in the circumferential direction. A mating protrusion 11 is formed. Moreover, the upper end part of the part comprised by the inner container 2 among the opening parts 4a of the container main body 4 is formed so as to be folded outward in the radial direction, and is disposed on the upper end opening edge of the outer container 3 part. ing.

As shown in FIG. 3, an introduction cylinder 12 extending along the container axis O direction is formed at the bottom of the outer container 3. The introduction cylinder 12 protrudes downward from the bottom of the outer container 3, and the lower end thereof has a smaller diameter than the portion other than the lower end. A lower end portion of the introduction cylinder 12 is opened downward, and the lower end opening portion serves as the air introduction port 9. In addition, an annular engagement groove 13 that is recessed toward the radially inner side and extends along the circumferential direction is formed at the upper end portion of the outer peripheral surface of the introduction cylinder 12.
A closed cylinder 14 extending along the container axis O direction is formed at the bottom of the inner container 2, and the closed cylinder 14 is inserted into the introduction cylinder 12 of the outer container 3 from above. An upper end portion of the closing cylinder 14 is opened in the inner container 2, and a lower end portion of the closing cylinder 14 is closed.

  In FIG. 2, the discharger 6 penetrates the mounting cap 15 mounted on the mouth portion 4 a of the container body 4, the discharge cylinder 16 disposed on the mounting cap 15, and the mounting cap 15 in the container axis O direction. A discharge stem 18 that is inserted downward into the discharge cylinder 16 and is movably moved downward by an elastic member 17 in the discharge cylinder 16 and provided at the upper end of the discharge stem 18. A pressing head 19.

  The mounting cap 15 is mounted on the mouth 4a of the container body 4, the cap cylinder 21 is disposed so as to cover the radially outer side and the upper side of the mounting cylinder 20, and the discharge cylinder 16 is mounted. It has.

  The mounting cylinder 20 includes a top wall portion 20a and a peripheral wall portion 20b. A central portion in the radial direction of the top wall portion 20a passes through and opens in the container axis O direction, and the radial direction in the top wall portion 20a. A fitting cylinder 20c having a smaller diameter than the peripheral wall portion 20b is suspended from the inner peripheral edge of the inner side.

The top wall portion 20 a is in contact with the upper end opening edge of the mouth portion 4 a of the container body 4 from above.
An annular engagement protrusion 22 that protrudes radially inward and extends along the circumferential direction is formed on the inner peripheral surface of the peripheral wall portion 20b, and the engagement protrusion 22 is engaged with the mouth portion 4a. It contacts the protrusion 11 from below. The engagement protrusions 11 and 22 are engaged with each other, whereby the mouth 4a of the container body 4 and the mounting cylinder 20 are undercut fitted (concave fitting), and the mouth 4a and the mounting cylinder. The relative movement along the container axis O direction with respect to 20 is restricted. Furthermore, relative movement along the circumferential direction of the mouth portion 4a of the container body 4 and the mounting cylinder 20 is restricted to the lower side of the engaging projections 11 and 22 on the mouth portion 4a and the mounting cylinder 20 of the container body 4. A restricting portion 23 is provided. A male screw portion 24 is formed on the outer peripheral surface of the peripheral wall portion 20b.
The fitting cylinder 20c is fitted to the mouth 4a of the container body 4 from the inside in the radial direction.

  The cap cylinder 21 includes an inner cylinder 21a, an outer cylinder 21b, and a flange portion 21c that connects the inner cylinder 21a and the outer cylinder 21b.

The inner cylinder 21a has a top cylinder shape, and a stem insertion hole 27 penetrating in the container axis O direction is formed at the radial center portion of the top wall. An annular protrusion 25 that protrudes radially inward and extends along the circumferential direction is formed at the center of the peripheral wall of the inner cylinder 21a in the container axis O direction. The lower end opening of the inner cylinder 21 a is fitted to the fitting cylinder 20 c of the mounting cylinder 20 from the radially inner side.
An internal thread portion 26 is formed on the inner peripheral surface of the outer cylinder 21 b, and the internal thread portion 26 is screwed into the external thread portion 24 of the mounting cylinder 20.
The flange portion 21c has an annular shape that protrudes radially inward from the upper end portion of the outer cylinder 21b and extends along the circumferential direction, and an inner peripheral end portion of the inner cylinder 21a in the container axis O direction. It is connected to the central part. The flange portion 21c is in contact with the top wall portion 20a of the mounting cylinder 20 from above.

  The discharge cylinder 16 is disposed in the cylinder cylinder 28, the elastic member 17 disposed in the cylinder cylinder 28, the cylinder cylinder 28, and comes into contact with the elastic member 17 from the upper side and is located above the cylinder cylinder 28. A bottomed cylindrical stem support tube 29 that can be moved downward in an urging state, and a seal member 30 that is disposed on the upper side of the stem support tube 29 and closes a later-described through hole 34 of the discharge stem 18 so as to be openable. It is equipped with.

  The cylinder tube 28 includes a bottomed tubular tube portion 28a and an annular flange portion 28b that protrudes radially outward from the upper end opening of the tube portion 28a and extends in the circumferential direction.

A plurality of ribs 31 projecting radially inward and extending along the container axis O direction are formed on the peripheral wall of the cylindrical portion 28a at intervals in the circumferential direction. A communication hole 32 is opened through the bottom wall of the cylindrical portion 28a in the container axis O direction.
The radially outer portion of the flange portion 28b is in contact with the radially outer portion of the top wall of the inner tube 21a of the cap tube 21 from below. The outer peripheral edge of the flange portion 28b is in contact with the annular protrusion 25 of the inner cylinder 21a from above.

  The elastic member 17 is a compression coil spring in the illustrated example, and is disposed coaxially with the container axis O. The lower end portion of the elastic member 17 is in contact with the bottom wall of the cylinder portion 28 a from above, and the upper end portion of the elastic member 17 is in contact with the bottom wall of the stem support tube 29 from below.

  The peripheral wall of the stem support cylinder 29 is in sliding contact with the rib 31 of the cylinder cylinder 28 from the radially inner side. The upper end opening edge of the peripheral wall of the stem support cylinder 29 is in contact with the seal member 30 from below. An elastic member guide portion 33 having an X shape or a cross shape in a bottom view is suspended from the bottom wall of the stem support cylinder 29. The elastic member guide portion 33 is inserted into the elastic member 17, and the outer diameter of the elastic member guide portion 33 is larger than the inner diameter of the communication hole 32.

  The seal member 30 has an annular plate shape, and is sandwiched from the container axis O direction by the radially inner portion of the top wall of the inner cylinder 21a and the radially inner portion of the flange portion 28b. A gap is formed between the lower surface of the seal member 30 and the upper end portion of the rib 31.

  The discharge stem 18 has a cylindrical shape, and is inserted into the stem insertion hole 27 of the cap cylinder 21 so as to be movable in the container axis O direction. The lower end portion of the discharge stem 18 is fitted to the peripheral wall of the stem support cylinder 29 from the inside in the radial direction, and is in contact with the bottom wall of the stem support cylinder 29 from above. A plurality of through-holes 34 penetrating in the radial direction are formed at intervals in the circumferential direction in a portion of the discharge stem 18 positioned above the stem support cylinder 29. In the state of FIG. 2, these through holes 34 are closed by abutting against the inner peripheral edge of the seal member 30.

  The pressing head 19 has a head cylinder 19a coupled to the upper end of the discharge stem 18, and extends radially outward from the upper end of the head cylinder 19a, and the discharge port 5 is formed at the tip thereof. Nozzle cylinder 19b. In the illustrated example, the nozzle cylinder 19b is gradually inclined downward as it goes radially outward.

  The head cylinder 19a has a double cylinder shape, and the upper end portion of the discharge stem 18 is fitted to the inner cylinder portion from the radially inner side. The inside of the inner cylinder part of the head cylinder 19a and the inside of the discharge stem 18 are in communication with each other, and the inside of the inner cylinder part and the inside of the nozzle cylinder 19b are also in communication with each other. And the radial direction outer side edge part in the communicating path formed in the nozzle cylinder 19b becomes the discharge outlet 5. FIG.

  As shown in FIGS. 3 and 4, the base 7 is disposed inside the outer cylinder 7 a and the outer cylinder 7 a coaxially, and is connected to the intake cylinder 10 a of the air supply member 10. A cylindrical body 7b and a support flange 7c for connecting the exterior cylindrical body 7a and the internal cylindrical body 7b are provided.

  The outer cylinder 7a is formed so as to gradually increase in diameter as it goes downward. A notch 35 is formed in a predetermined range along the circumferential direction at the upper end opening edge of the outer cylinder 7a corresponding to a rotation range around the container axis O of the fixing member 41 described later.

  In FIG. 3, the inner cylinder 7 b has a bottomed cylindrical shape, and the central portion in the radial direction of the bottom wall is opened through in the container axis O direction, and the inner side in the radial direction of the bottom wall. A connecting tube portion 36 is suspended from the inner peripheral edge so as to be coaxial with the container axis O. On the inner peripheral surface of the connecting cylinder portion 36, an annular engagement protrusion 37 is formed that protrudes radially inward and extends along the circumferential direction. In addition, an annular locking flange 38 that protrudes radially inward and extends along the circumferential direction is formed at the lower end opening of the connecting tube portion 36. The lower end opening part of the connection cylinder part 36 is located above the lower end opening edge of the exterior cylinder 7a.

  The support flange 7c has an annular shape that protrudes radially outward from the upper end opening of the peripheral wall of the interior cylinder 7b and extends along the circumferential direction, and the outer peripheral end of the support flange 7c is the inner periphery of the exterior cylinder 7a. It is connected to the central portion of the surface in the container axis O direction. Of the support flange 7c, the inner peripheral portion located on the radially inner side protrudes above the outer peripheral portion located on the radially outer side. A plurality of guide holes 39 penetrating in the container axis O direction are formed in the outer peripheral portion of the support flange 7c at intervals in the circumferential direction.

  The holding member 8 is movable downward on the base 7 in an upward biased state and is arranged coaxially with the container axis O, and supports the container main body 4 with the support cylinder 40 and the support cylinder 40. A fixing member 41 is provided that is rotatably arranged around the axis of the cylinder 40 and that detachably fixes the container body 4 to the support cylinder 40 along with the rotation.

  The support cylinder 40 is disposed coaxially within the outer cylinder part 40a, the outer cylinder part 40a, and the inner cylinder part 40b to which the cylinder-feeding part 10b of the air supply member 10 is coupled, and the outer cylinder part 40a, And a connecting portion 40c for connecting the inner cylinder portion 40b.

  The outer cylinder part 40a is disposed in the outer cylinder 7a of the base 7, and a plurality of support protrusions 42 projecting upward are formed at the upper opening edge of the outer cylinder part 40a at intervals in the circumferential direction. ing. Among these support protrusions 42, the distance between the support protrusions 42 facing each other across the container axis O (that is, the inner diameter of the outer cylinder portion 40 a) is smaller than the outer diameter of the container body 4. Is in contact with the container body 4 from below. In the state shown in FIG. 3, the portions other than the support projections 42 at the upper end opening edge of the outer cylinder portion 40a and the upper end opening edge of the outer cylinder 7a are substantially the same in position along the container axis O direction. Yes.

  The upper part of the outer cylinder part 40a is formed thicker than the lower part. Of the lower part of the outer cylinder part 40a, a part corresponding to the guide hole 39 of the base 7 is formed with a locking projection 43 protruding downward. A plurality of locking projections 43 are formed in the lower portion of the outer cylinder portion 40a with a circumferential interval, and are inserted into the guide holes 39, respectively. Further, the locking protrusion 43 is formed with a restricting protrusion 44 that protrudes radially outward. In the state shown in FIG. 3, the restricting protrusion 44 contacts the support flange 7c from below. It touches.

  The inner cylinder portion 40 b has a double cylinder shape, and includes an outer cylinder body 45, an inner cylinder body 46, and a connecting body 47 that connects the outer cylinder body 45 and the inner cylinder body 46.

  The connecting body 47 has an annular plate shape that protrudes radially inward from the central portion of the outer cylinder 45 along the container axis O direction and extends along the circumferential direction. A plurality of arcuate slide guide holes 50 penetrating in the container axis O direction and extending along the circumferential direction are formed at the radially outer end of the connecting body 47 at intervals in the circumferential direction. A plurality of cylindrical or disk-shaped pushing portions 51 projecting upward are formed at the radially inner end of the connecting body 47 at intervals in the circumferential direction. In the example shown in FIG. 4, a pair of slide guide holes 50 are formed with the container axis O interposed therebetween, and a pair of push-in portions 51 are also formed with the container axis O interposed therebetween.

  In FIG. 3, the inner cylindrical body 46 is suspended from the inner peripheral edge of the connecting body 47. In the illustrated example, the lower end opening edge of the inner cylindrical body 46 and the lower end opening edge of the outer cylindrical body 45 are substantially flush with each other in the container axis O direction. On the inner peripheral surface of the inner cylindrical body 46, an annular engagement protrusion 48 that protrudes radially inward and extends along the circumferential direction is formed. In addition, an annular locking flange 49 that protrudes radially inward and extends along the circumferential direction is formed at the upper end opening of the inner cylindrical body 46. The inner peripheral edge portion of the locking flange 49 is disposed close to or in contact with the outer peripheral surface of the introduction tube 12 of the container body 4.

  The connecting portion 40c has an annular plate shape that protrudes radially inward from the central portion in the container axis O direction on the inner peripheral surface of the outer cylindrical portion 40a and extends along the circumferential direction. The inner peripheral edge part of the connection part 40c is connected with the upper end opening part of the outer cylinder 45 of the inner cylinder part 40b. The inner peripheral edge portion of the connecting portion 40c protrudes above the portion other than the inner peripheral edge portion. As shown in FIG. 4, a notch 52 is formed in a predetermined range along the circumferential direction of the inner peripheral edge of the connecting portion 40 c corresponding to the rotation range around the container axis O of the fixing member 41. The portion protruding upward at the inner peripheral edge of the connecting portion 40c has a C-shape when viewed from above. In FIG. 3, the portion of the inner peripheral edge of the connecting portion 40c where the notch 52 is formed is substantially the same in position along the container axis O direction as the portion other than the inner peripheral edge of the connecting portion 40c. It has become. Further, the upper end surface 53 of the portion protruding upward at the inner peripheral edge of the connecting portion 40c is gradually inclined upward toward the outer side in the radial direction, and abuts against the outer surface of the outer container 3 of the container body 4. ing.

  In FIG. 4, a plurality of holes 54 penetrating in the container axis O direction are formed at intervals in the circumferential direction at portions other than the inner peripheral edge portion in the connecting portion 40c. Further, the hole 54 extends in the circumferential direction, and one end in the extending direction is connected to a portion other than the inner peripheral edge portion, and the other end is a free end so that the upper end is on the inner peripheral portion of the support flange 7c. An urging portion 55 that abuts from the side is provided. The urging portion 55 urges the support cylinder 40 upward, and is elastically deformable when the support cylinder 40 is pushed downward.

  The fixing member 41 includes a rectangular container-shaped main body portion 41a having a peripheral wall and a bottom wall, and an operation portion 41b that protrudes radially outward from one longitudinal end portion of the main body portion 41a.

As shown in FIG. 4, both end portions of the peripheral wall of the main body portion 41 a that face in the longitudinal direction are each formed in an arc shape when viewed from above, and the outer cylinder body 45 of the support tube 40 is formed radially from the inside. It is in sliding contact.
In FIG. 3, the bottom wall of the main body portion 41 a is in sliding contact with the connecting body 47 of the support cylinder 40 from above, and a guide piece 56 that protrudes downward is provided at the longitudinal end of the bottom wall. Is formed. The guide piece 56 is inserted into the slide guide hole 50 of the coupling body 47, and a locking projection 57 that protrudes radially inward is formed at the center of the guide piece 56 in the container axis O direction. Thus, the locking protrusion 57 is in contact with the connecting body 47 from below. As shown in FIG. 4, the guide piece 56 is movable within a slide guide hole 50 over a predetermined range along the circumferential direction. In the illustrated example, a pair of guide pieces 56 is formed at both ends in the longitudinal direction of the bottom wall of the main body 41a.

  Further, a hole 58 penetrating in the container axis O direction is formed in the bottom wall of the main body 41a, and an annular ring body 59 is disposed in the hole 58 in the bottom wall. The ring body 59 includes a plurality of holding portions 60 that can hold the introduction tube 12 of the outer container 3 from the outside in the radial direction of the introduction tube 12, and these holding portions 60 are arranged in the circumferential direction of the introduction tube 12 ( And a first elastic portion 61 connected around the container axis O). Further, a second elastic portion 62 that connects the ring body 59 and the inner peripheral edge portion of the hole portion 58 is provided on the bottom wall of the main body portion 41a.

  In the top view shown in FIG. 4, the holding portion 60 is formed so as to protrude radially inward from the first elastic portion 61, and the inner peripheral edge thereof corresponds to the engagement groove 13 of the introduction tube 12. It has an arc shape. The radially outer edge of the holding part 60 is flush with the radially outer edge of the first elastic part 61, so that the outer peripheral edge of the ring body 59 is smooth when viewed from above. It has a curved shape.

  The outer peripheral edge of the ring body 59 is in sliding contact with the outer peripheral surface of the pushing portion 51 of the support tube 40. In the state shown in FIG. 4, the ring body 59 has an elliptical shape, the holding portions 60 are disposed on both sides in the short axis direction, and at least the outer diameter in the long axis direction is between the pair of pushing portions 51. Is greater than the distance. Further, by making the outer diameter in the minor axis direction larger than the distance between the pair of pushing portions 51, the portion corresponding to the holding portion 60 of the ring body 59 by the pushing portion 51 (specifically, narrow) A circumferential end portion connected to the first elastic portion 61 in the holding portion 60 can be configured to be pushed inward in the radial direction.

  The first elastic portion 61 is formed thin and can be elastically deformed. In the illustrated example, the ring body 59 includes a pair of sandwiching portions 60 and a pair of first elastic portions 61 that are alternately arranged in the circumferential direction, and the pair of sandwiching portions 60 each have a container axis O. It is opposed to the longitudinal direction of the main body 41a.

In addition, in the top view shown in FIG. 4, the second elastic portion 62 extends meandering so as to reverse the direction of the circumferential direction (inverted once or a plurality of times) as it goes radially outward. It is formed in a shape or a wave shape. The second elastic portion 62 is formed thin and can be elastically deformed. The radially inner end of the second elastic portion 62 is connected to a portion corresponding to the holding portion 60 of the ring body 59. An end portion on the radially outer side of the second elastic portion 62 is connected to an end portion in the longitudinal direction of the main body portion 41 a at the inner peripheral edge portion of the hole portion 58. In the present embodiment, a pair of second elastic portions 62 are formed corresponding to the pair of holding portions 60, and the pair of second elastic portions 62 direct the pair of holding portions 60 toward each other in the radial direction. It is supported so that it can be separated.
In addition, you may comprise so that the 2nd elastic part 62 may urge | bias a pair of clamping part 60 toward radial inside.

  Then, when the fixing member 41 is rotated around the container axis O with respect to the support cylinder 40, the pushing portion 51 comes into sliding contact with the first elastic portion 61 as shown in FIG. However, by pushing the first elastic portion 61 radially inward, the second elastic portion 62 is elastically deformed and the holding portions 60 are separated from each other toward the radially outer side. In the top view shown in FIG. 7, the ring body 59 has a shape close to a circle.

  In FIG. 3, the operation portion 41 b is erected from a connecting plate 63 extending radially outward from a longitudinal end portion of the peripheral wall of the main body portion 41 a and from a radially outer end portion of the connecting plate 63. And a plate 64.

The radially inner end of the connecting plate 63 is connected to the upper end opening in the peripheral wall of the main body 41a. The connecting plate 63 is in sliding contact with the connecting portion 40c of the support tube 40 from above.
The operation plate 64 is in sliding contact with the outer cylinder portion 40a of the support cylinder 40 from the radially inner side. In the illustrated example, the upper end portion of the operation plate 64 is in contact with the outer surface of the outer container 3. The operation plate 64 is formed with a rotating operation piece 65 that protrudes radially outward and extends along the container axis O direction. The lower end surface of the rotation operation piece 65 is in sliding contact with the upper end surface in a portion other than the portion where the support protrusion 42 of the outer cylinder portion 40a is formed.

The air supply member 10 has a bellows-like expandable portion 10c that can be expanded and contracted in the container axis O direction, and an intake valve 66 that is provided at the lower end of the expandable portion 10c and that can supply air into the expandable portion 10c. And an air supply cylinder portion 10b having an air supply valve 67 provided at the upper end portion of the expansion / contraction portion 10c and capable of discharging the air in the expansion / contraction portion 10c.
The stretchable part 10 c is accommodated in the interior cylinder 7 b of the base 7. The intake cylinder portion 10a and the feed cylinder portion 10b are smaller in diameter than the expandable portion 10c.

An annular engagement protrusion 68 that protrudes radially outward and extends along the circumferential direction is formed on the outer peripheral surface of the intake cylinder portion 10 a. The engagement protrusion 68 is engaged with the connection cylinder portion 36. It abuts on the mating protrusion 37 from below. Further, a fitting cylinder 69 having an intake valve 66 is fitted to the intake cylinder 10a from the inside in the radial direction, and the lower end opening of the fitting cylinder 69 is engaged with the connecting cylinder 36. It abuts on the flange 38 from above.
The intake valve 66 is a check valve that is configured to be capable of supplying air from the outside into the extendable portion 10c, while restricting the air in the extendable portion 10c from being discharged to the outside. In the present embodiment, a so-called three-point valve is used in which a plurality of elastic connecting pieces are provided at intervals in the circumferential direction on the outer peripheral edge of the valve body.

An annular engagement protrusion 70 is formed on the outer peripheral surface of the feed cylinder portion 10 b so as to protrude outward in the radial direction and extend along the circumferential direction. The engagement protrusion 70 is engaged with the inner cylinder body 46. It contacts the mating protrusion 48 from above. In addition, a fitting cylinder 71 provided with an air supply valve 67 is fitted to the sending cylinder portion 10b from the radially inner side, and the upper end opening of the fitting cylinder 71 is engaged with the inner cylinder 46. It abuts against the stop flange 49 from below.
The air supply valve 67 is a check valve configured to restrict the supply of air from the outside into the expansion / contraction part 10c while allowing the air in the expansion / contraction part 10c to be discharged to the outside. In this embodiment, the three-point valve is used.
Also, what is indicated by reference numeral 72 in FIG. 3 is an annular seal that blocks communication between the internal space of the introduction cylinder 12 and the fitting cylinder 71 and the external space.

  In the discharge container 1 of the present embodiment described above, the container body 4 is moved downward with respect to the base 7 in advance when the contents stored in the inner container 2 of the container body 4 are discharged. As a result, as shown in FIG. 5, the urging portion 55 is elastically deformed, and the holding member 8 moves downward relative to the base 7. Further, the air supply member 10 is contracted in the container axis O direction and the internal pressure is increased, the air supply valve 67 is opened, and the air supply member 10 is passed through the air introduction port 9 of the introduction tube 12 in the outer container 3. Air is introduced between the outer container 3 and the inner container 2 of the container body 4, and the inner container is pressurized in the direction of volumetric deformation. And with this pressurization, the internal pressure of the inner container 2 becomes a positive pressure, and the contents are discharged from the discharge port 5 by operating the discharger 6 from this state.

  Specifically, as shown in FIG. 6, when the pressing head 19 is pushed downward into the mounting cap 15 in the discharger 6, the elastic member 17 is elastically deformed and the discharge stem 18 and the stem are also elastically deformed. The support cylinder 29 is pushed down, the seal of the seal member 30 with respect to the through hole 34 of the discharge stem 18 is released, and the through hole 34 is opened in the discharge cylinder 16. Thereby, the through hole 34 and the inner container 2 communicate with each other between the ribs 31 in the discharge cylinder 16, between the inner peripheral surface of the discharge cylinder 16 and the elastic member guide portion 33, and through the communication hole 32. Then, the content flows from the inside of the inner container 2 to the discharge port 5 through the through-hole 34 and is discharged from the discharge port 5 to the outside.

  When the container main body 4 is moved downward relative to the base 7 as described above and the moving operation is released, the container main body 4 is moved to the base base as the urging portion 55 is restored and deformed. 7 together with the holding member 8. At this time, in the air supply member 10, new air flows into the air supply member 10 by opening the intake valve 66 while the air supply valve 67 is closed. In addition, since the container body 4 moves upward with the air supply valve 67 closed in this manner, the internal pressure of the inner container 2 of the container body 4 is maintained.

  In addition, the volume of the inner container 2 is reduced and deformed by discharging the contents, and the internal pressure of the inner container 2 is reduced. However, by moving the container body 4 downward again with respect to the base 7, the air supply member 10 Air is newly introduced between the outer container 3 and the inner container 2, and the inner pressure of the inner container 2 becomes a positive pressure, so that the next content can be discharged.

  Thus, according to this embodiment, the internal pressure of the inner container 2 can be increased by a simple operation of moving the container body 4 downward relative to the base 7. That is, for example, as in the prior art, it is not necessary to use a gas can in order to increase the internal pressure in the container body, and therefore it is not necessary to replace the gas can. Therefore, the discharge container 1 of this embodiment has improved usability.

In addition, when the contents of the inner container 2 are lost and the container body 4 is replaced, as shown in FIG. 7, the rotation operation piece 65 of the fixing member 41 is operated to fix the fixing member 41 to the support cylinder 40. The first elastic portion 61 is pushed inward in the radial direction while the ring body 59 is slidably contacted with the push-in portion 51. As a result, the second elastic portion 62 is elastically deformed, and the holding portions 60 are separated from each other toward the outside in the radial direction, and the engagement between the holding portion 60 and the introduction cylinder 12 of the container body 4 is achieved. The engagement with the groove 13 is released.
Next, when the container body 4 is replaced with a new one and the introduction cylinder 12 is disposed between the holding portions 60, the rotation operation piece 65 of the fixing member 41 is operated to move the fixing member 41 to the support cylinder 40. It is rotated and moved in the opposite circumferential direction. As a result, the second elastic portion 62 is restored and deformed, and the push-in portion 51 pushes the holding portion 60 inward in the radial direction while being in sliding contact with the ring body 59, and the engagement between the holding portion 60 and the introduction cylinder 12 The groove 13 is engaged.

Thus, since the container body 4 can be fixed to the holding member 8 by a simple operation of rotating the fixing member 41 around the container axis O with respect to the support cylinder 40, the container body 4 can be attached to and detached from the holding member 8. Easy. Moreover, when the container main body 4 is moved downward with respect to the base 7 as described above, since the posture of the container main body 4 is stabilized, the operation is easy to perform.
Moreover, according to this embodiment, the container main body 4 can be detachably fixed to the holding member 8 with the simple configuration described above.
In the present embodiment, by making the upward biasing force of the elastic member 17 larger than the upward biasing force of the biasing portion 55, the through hole 34 of the discharge stem 18 is sealed when the pressing head 19 is pressed downward. In this state, the outside air can be introduced (pressurized) between the outer container 3 and the inner container 2.
In this case, the container body 4 can be moved up and down a plurality of times with the through-hole 34 sealed, and it is easy to adjust to a desired pressure.

  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.

  For example, in the above-described embodiment, the mounting cap 15 includes the mounting cylinder 20 that is mounted on the mouth portion 4a of the container body 4 and the cap cylinder 21 that is disposed so as to cover the mounting cylinder 20. However, these cylinders 20 and 21 may be integrated.

  3 and 4, the notch 35 is notched corresponding to the rotation range of the fixing member 41 around the container axis O. Instead, the fixing member 41 is rotated. The operation piece 65 may be cut out corresponding to the length (thickness) along the circumferential direction. In this case, when the container body 4 is attached to or detached from the support cylinder 40, the support cylinder 40 is restricted from being pushed down with respect to the base 7 in a state where the holding portions 60 are separated from each other, and the attachment / detachment operation is performed. It can be done more stably.

  In addition, although the intake valve 66 and the air supply valve 67 are three-point valves, other check valves such as a one-point valve may be used.

  Further, for the purpose of easily and accurately performing the pressing operation of the container body 4 with respect to the base 7 and the pressing operation of the pressing head 19, an operation guide piece is placed on the outer peripheral surface of the outer container 3 or the mounting cap 15 of the container body 4. (Not shown) may be provided. In this case, the internal pressure of the inner container 2 can be easily increased by depressing the operation guide piece, and the operation guide piece and the pressing head 19 are moved closer to each other from a state where the operation guide piece and the pressing head 19 are held between fingers. Thus, the contents can be discharged without pushing down the container body 4.

  Moreover, although the container main body 4 in the above-described embodiment is a double container in which the inner container 2 and the outer container 3 are formed separately, the present invention is not limited to this. For example, the inner container 2 May be a so-called Delami bottle laminated on the inner surface of the outer container 3 in a peelable manner. In this case, the container body 4 is formed by, for example, blow molding a co-extruded two-layer parison, the outer container 3 is made of polyethylene terephthalate resin, and the inner container 2 is made of polyethylene terephthalate resin. It is made of a polyamide-based synthetic resin that is not compatible.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Discharge container 2 Inner container 3 Outer container 4 Container main body 4a Mouth part 5 Ejection port 6 Ejector 7 Base 8 Holding member 9 Air inlet 10 Air supply member 12 Introduction cylinder 40 Support cylinder 41 Fixing member 51 Pushing part 60 Nipping Part 61 First elastic part 62 Second elastic part O Container shaft (shaft)

Claims (3)

A container body having a flexible inner container that accommodates the contents and is deformed by shrinkage as the contents are reduced, and an outer container in which the inner container is installed;
A discharge device mounted on the mouth of the container body and formed with a discharge port for discharging the contents;
A base provided below the bottom side of the container body;
A holding member provided between the container main body and the base, and holding the container main body movably downward with the container main body biased upward on the mouth side;
Air can be introduced between the outer container and the inner container from the air inlet formed in the outer container by being provided in the base and contracted as the container body moves downward. An air supply member. The discharge container according to claim 1,
The holding member is
A support cylinder that is disposed on the base so as to be movable downward in an upwardly biased state and supports the container body;
A discharge container, comprising: a fixing member that is disposed on the support cylinder so as to be rotatable about an axis, and that fixes the container main body detachably with respect to the support cylinder in accordance with the rotation. A discharge container according to claim 2,
The outer container includes an introduction cylinder in which the air introduction port is formed,
The fixing member is
A plurality of holding portions capable of holding the introduction tube from the radially outer side of the introduction tube;
A first elastic portion that connects these holding portions to each other in the circumferential direction of the introduction tube;
A second elastic portion that supports these sandwiching portions so as to be separable toward the radially outer side,
The support cylinder elastically deforms the second elastic part by pushing the first elastic part radially inward while being in sliding contact with the first elastic part as the fixing member rotates with respect to the support cylinder. A discharge container comprising a push-in portion that separates the holding portions toward the outside in the radial direction.

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