JP2013133133A - Foam jetting container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foam jetting container capable of changing foam quality of contents through easy switching operation.SOLUTION: A foam jetting container includes: a cylinder body 40 which forms a confluence space G of contents and air, inside a cylinder 20 suspended from a mouth part 11 of a container body 10 to be held; and a head 60 which integrally couples a nozzle 65 discharging the contents from its tip end opening 66 and also drawing remaining contents back into a filling space M from its rear end opening 67 and is coupled to the cylinder body 40. A step part 42 covering a peak wall 23c of an annular part 23 is provided to an inner peripheral surface of the cylinder body 40, and an air path for passing air from an intake port 21b toward the confluence space G is provided between an outer peripheral surface of the annular part 23 and the inner peripheral surface of the cylinder body 40 and between the peak wall 23c of the annular part 23 and the step part 42 of the cylinder body 40. The head 60 is provided with a screwed part 64 meshed with a screw part 33 formed on a base cap 30, and a gap is formed between the peak wall 23c and step part 42 by elevation accompanying rotation of the head 60 to increase an amount of air introduced into the confluence space G.

Description

  The present invention relates to a foam ejection container capable of foaming and discharging a fluid content (liquid, gel-like, etc.) by squeezing a flexible body, depending on the user's preference. The foam quality of the contents can be changed with a simple operation.

  As a container that contains various liquid detergents such as shampoos, body soaps, hand soaps, facial cleansers, and hair conditioners such as set lotions, the flow of the contents is from the viewpoint of simplifying use by omitting the foaming operation. A foam member made of, for example, a mesh is incorporated in the road, and by compressing the flexible trunk, the contents and air are mixed and passed through the foam member to cause foaming. There has been proposed a foam ejection container that discharges the contents that have become from the nozzle outlet (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 58-174272

  By the way, in the foam ejection container as described above, it is possible to discharge the contents of foam quality (wet foam, dry foam) according to the user's preference with a simple switching operation. Although the advent of new containers with good quality is strongly desired, such containers have not yet been put into practical use.

  An object of the present invention relates to a foam ejection container, and is to propose an easy-to-use foam ejection container that can change the foam quality of contents by a simple switching operation.

The present invention includes a container body having a flexible body portion, the inside of which is a filling space for contents, and a bottomed cylindrical shape, and each of the contents and air in the container body is disposed inside the container body. A cylinder having a suction port to be introduced and a suction port; a base cap that is integrally connected via an outward flange provided in the cylinder and is attached to the mouth portion of the container body to hold the cylinder suspended; and the cylinder A cylindrical body that extends toward the bottom of the cylinder along the inner peripheral surface of the cylinder and forms a merge space between the contents and air inside the cylinder, and a discharge passage that communicates with the merge space. In this merging space, the contents and air are mixed and foamed, and the nozzle that discharges the foam-like contents from the opening of the tip is connected to the nozzle, and the cylinder is connected so that it cannot rotate and cannot be removed. Head A foam ejection vessel equipped with,
The cylinder has an annular portion standing on the inside of the cylindrical body,
The cylindrical body includes a stepped portion covering the top wall of the annular portion on the inner peripheral surface of the cylindrical body,
Air between the outer peripheral surface of the annular portion and the inner peripheral surface of the cylindrical body and between the top wall of the annular portion and the stepped portion of the cylindrical body from the suction port toward the merge space. Provide a vent passage to pass through,
The head is provided with a threaded portion that is linked to the threaded portion formed on the base cap, and a gap is formed between the top wall and the stepped portion when the head is raised as the head rotates. It is a foam ejection container characterized by increasing the amount of air to be introduced.

  It is preferable that the ventilation path includes a vertical groove provided on at least one of the outer peripheral surface of the annular portion and the inner peripheral surface of the cylindrical body, and a horizontal groove provided on at least one of the top wall and the stepped portion.

  The outward flange is formed with at least one return hole penetrating the front and back, and the nozzle is provided with a rear end opening penetrating the rear end side thereof, and the inside of the discharge passage is provided along with the restoration of the body portion. It is preferable to provide a back suction function that draws the residual content back into the filling space through the return hole.

  The foam ejection container according to the present invention has a cylindrical body that forms a merging space between the contents and air inside a cylinder that is suspended and held by the container body, and integrally connects a nozzle that discharges the contents. The cylinder is provided with a head for connecting the cylinder so as not to rotate and cannot be pulled out. The cylinder has an annular portion standing on the inner side of the cylinder, and the cylinder has a top wall of the annular portion on an inner peripheral surface of the cylinder. Between the outer peripheral surface of the annular portion and the inner peripheral surface of the cylindrical body, and between the top wall of the annular portion and the stepped portion of the cylindrical body, from the suction port toward the merge space. An air passage for allowing air to pass therethrough is provided, and a threaded portion linked to a threaded portion formed on the base cap is provided on the head. As a result, the head is raised by rotating the head, and a gap is formed between the top wall and the step portion so that the amount of air introduced into the merge space can be increased. The amount of air can be changed with a simple operation. And since the quantity of air can be changed continuously, it becomes possible to discharge the contents with the expected foam quality.

  The air passage is composed of a longitudinal groove provided on at least one of the outer peripheral surface of the annular portion and the inner peripheral surface of the cylindrical body, and a lateral groove provided on at least one of the top wall of the annular portion and the step portion of the cylindrical body. In this case, since the air passage can be provided by selecting a member that is easily provided with a groove, the structure of the container is further simplified.

  When the contents are discharged, some of the contents may remain in the discharge passage of the nozzle (residual contents), and over time, the residual contents will lose their bubbles and return to their original fluidity. In order to return to the contents, the contents may sag (drip) from the spout and clog (solidify the contents) after a while after use. Here, in the case where at least one return hole penetrating the front and back surfaces is formed in the outward flange and the rear end opening penetrating the rear end side is provided in the nozzle, the residual content in the discharge passage is filled with the space. Since a back suction function for pulling back the inside can be provided, it is possible to effectively prevent these problems caused by the residual contents.

It is the fragmentary sectional view in the side view shown in the attitude | position which lowered | hung the head about the embodiment of the foam ejection container according to this invention, and an enlarged view. It is sectional drawing which follows AA shown in FIG. (A) is sectional drawing which follows BB shown in FIG. 1, (b) is a perspective view which shows a ventilation path periphery. It is sectional drawing which follows CC shown in FIG. It is a fragmentary sectional view which shows the state which presses the trunk | drum of the foam ejection container shown in FIG. 1, and discharges the contents. FIG. 6 is a partial cross-sectional view showing a state in which the body portion is restored from the state shown in FIG. 5 and the residual content in the nozzle is pulled back into the container body. It is a fragmentary sectional view shown with the posture which rotated and raised the head about the foam jet container shown in FIG. It is a side view of the foam ejection container shown in FIG. (A) is the fragmentary sectional view shown in the posture which lowered the head, and (b) is the fragmentary sectional view shown in the posture which raised the head about the embodiment of other bubble ejectors according to the present invention. is there.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a partial sectional view in a side view and an enlarged view showing a posture in which a head is lowered according to an embodiment of a foam ejection container according to the present invention, and FIG. 2 is an AA shown in FIG. 3A is a cross-sectional view taken along the line BB shown in FIG. 1, FIG. 3B is a perspective view showing the periphery of the air passage, and FIG. FIG. 5 is a cross-sectional view taken along the line C-C shown in FIG. 1, and FIG. 5 is a partial cross-sectional view showing a state in which the body of the foam ejection container shown in FIG. 6 is a partial cross-sectional view showing a state in which the body portion is restored from the state shown in FIG. 5 and the residual contents in the nozzle are pulled back into the container body, and FIG. 7 is a bubble ejection container shown in FIG. FIG. 8 is a partial cross-sectional view showing a posture in which the head is rotated and raised, and FIG. 8 is a side view of the foam ejection container shown in FIG.

  In FIG. 1, the code | symbol 10 is a container main body. The container main body 10 has a cylindrical mouth portion 11 having an open top, and a tubular body portion 12 connected to a bottom portion (not shown) is connected to the mouth portion 11, and a content filling space M is formed inside thereof. Is forming. Here, the trunk portion 12 has flexibility formed by, for example, a synthetic resin. Further, an engaging portion 11 a (screw in the illustrated example) is formed on the outer peripheral surface of the mouth portion 11. Furthermore, as shown in FIG. 2, a small protrusion 11b and a large protrusion 11c are provided at the base of the mouth portion 11 with an interval in the circumferential direction.

  Reference numeral 20 denotes a cylinder. As shown in FIG. 1, the cylinder 20 includes a peripheral wall 22 that rises from a bottom 21 and has a bottomed cylindrical shape. In the example shown in the drawing, the center portion of the bottom portion 21 is penetrated, the suction port 21a for introducing the contents in the filling space M into the cylinder 20, and the connecting portion between the bottom portion 21 and the peripheral wall 22 is penetrated to fill the filling space. And an inlet 21b for introducing the air in M into the cylinder 20. Further, on the lower surface side of the bottom portion 21, there is provided an annular holding portion 21 c that fixes and holds a suction pipe p that surrounds the suction port 21 a and sends the contents in the filling space M to the suction port 21 a. Note that at least one suction port 21a and at least one suction port 21b may be provided.

  Further, as shown in FIGS. 1 and 3A, an annular portion 23 that stands from the bottom portion 21 is provided inside the cylinder 20. A plurality of inner ribs 23a are provided on the inner peripheral surface of the annular portion 23. In the illustrated example, four inner ribs 23a are provided at equal intervals in the circumferential direction. Further, in the illustrated example, at least one vertical groove 23b (here, four cases are shown in a uniform arrangement with intervals in the circumferential direction) is provided on the outer peripheral surface of the annular portion 23. Further, as shown in FIG. 3A, the top wall 23c of the annular portion 23 is provided with a lateral groove 23d continuously connected to the longitudinal groove 23b.

  Further, as shown in FIG. 1, an outward flange 24 is integrally connected to the upper portion of the peripheral wall 22. Further, the outward flange 24 is provided with a through hole (return hole) 24a penetrating the front and back surfaces thereof. As will be described later, the return hole 24a functions as a passage for returning the residual content remaining in the nozzle after discharge into the filling space. Further, on the lower surface of the outward flange 24, a cylindrical portion 25 that surrounds the peripheral wall 22 with a space and is suspended over the suction port 21b is integrally connected.

  Reference numeral 30 denotes a base cap that integrally connects the cylinder 20 via the outward flange 24. The base cap 30 includes a cylindrical outer wall 31 that surrounds the mouth portion 11 of the container body 10, and an engaged portion 31 a (illustrated) that engages with the engaging portion 11 a of the mouth portion 11 is formed on the inner surface of the outer wall 31. In this example, a screw) is provided. Further, as shown in FIG. 2, a detent rib 31b is provided at the lower end of the outer wall 31. Thus, when the base cap 30 is screwed, immediately before the screwing is finished, the rotation prevention rib 31b gets over the small protrusion 11b and is held between the small protrusion 11b and the large protrusion 11c. It is suspended and held by the mouth 11 of the main body 10. In the illustrated example, the base cap 30 is fixedly held by screws, but may be fixedly held by undercutting. As a result, an annular path K that connects the return hole 24 a of the outward flange 24 and the filling space M is formed between the mouth portion 11 and the tubular portion 25.

  Further, as shown in FIG. 1, the outer wall 31 is integrally connected with the outward flange 24 and is in close contact with the inner surface of the mouth portion 11 so that the container body 10 and the base cap 30 are hermetically sealed. A holding seal wall 32 is provided. Furthermore, on the upper surface of the base cap 30, in the illustrated example, the upper surface of the outward flange 24 is provided with a threaded portion 33 provided with a screw on the outer peripheral surface side of the annular wall portion.

  Reference numeral 40 is a cylinder provided inside the cylinder 20. The cylinder 40 includes a cylinder body 41 that extends along the inner peripheral surface of the cylinder 20 toward the bottom 21 and surrounds the annular portion 23. The outer peripheral surface of the cylinder body 41 is slidably and airtightly in contact with the inner peripheral surface of the cylinder 20. In addition, a ring-shaped stepped portion 42 that protrudes radially inward and covers the top wall 23 c of the annular portion 23 is formed on the inner peripheral surface of the cylindrical body portion 41. Thus, suction between the outer peripheral surface of the annular portion 23 and the inner peripheral surface of the cylindrical body main body 41 and between the top wall 23c of the annular portion 23 and the stepped portion 42 of the cylindrical main body portion 41 is performed. A ventilation path is formed through which air from the opening 21b is introduced into the cylindrical body 40 through the vertical groove 23b and the horizontal groove 23d. The vertical groove 23b and the horizontal groove 23d provided in the cylinder 20 may be provided on the cylinder 40, specifically, the inner peripheral surface of the cylinder body 41 and the lower surface of the stepped part 42. It may be provided on both of the bodies 40.

  A rod 43 extending in the axial direction of the cylinder 40 is provided on the radially inner side of the stepped portion 42. Here, the upper portion of the rod body 43 is held integrally connected with a connecting piece 44 extending obliquely upward from the stepped portion 42. As shown in FIG. 4, a plurality of connection pieces 44 (three in total in the example shown in the figure) are provided at intervals in the circumferential direction.

  With the above-described configuration, in the present embodiment, as shown in FIG. 1, the contents in the filling space M are separated from the suction pipe p, the gap between the inner ribs 23 a, and the gap between the connecting pieces 44. It can introduce | transduce into the inside of the cylinder 40 by the channel | path through which it passes in order. On the other hand, the air in the filling space M is introduced into the cylindrical body 40 through a passage that passes in the order of the suction port 21b, the vertical groove 23b, the horizontal groove 23d, and the gap between the connecting pieces 44. Here, the inside of the cylinder 40 is a merge space G of the contents and air.

  Moreover, as shown in FIG. 1, the upper part of the cylinder 40 is expanded in diameter with the level | step-difference part d, and the foaming member shown with the code | symbol 50 here is provided. The foam member 50 is made of a mesh 52 fixed to the end face of the ring 51, and the foamed member 50 can be foamed by passing the mixed contents of air through the foam member 50. In the example shown in the figure, two foam members 50 are provided, but the number of installed members, the mesh roughness of the mesh 52, and the like are appropriately changed according to the type of contents.

  As shown in the enlarged view of FIG. 1, the upper outer peripheral surface of the cylindrical body 40 is provided with a claw portion 45 projecting radially outward (even in the circumferential claw portion, the circumferential claw portion is spaced in the circumferential direction). In the illustrated example, at least one concave portion 46 is provided on the upper portion of the claw portion 45.

  Reference numeral 60 denotes a head provided on the base cap 30. As shown in the enlarged view of FIG. 1, the head 60 includes an inner cylinder 61 and an outer cylinder 62 that are arranged concentrically at the center thereof, and is formed between the inner cylinder 61 and the outer cylinder 62. The upper part of the cylinder body 41 is inserted into the annular space. Here, the outer peripheral surface of the outer cylinder 62 is in slidable and airtight contact with the inner peripheral surface of the cylinder 20. Further, on the radially inner side of the outer cylinder 62, a protrusion 62a that engages with the claw portion 45 is provided, and a convex portion 62b that corresponds to the concave portion 46 is provided. Thereby, the cylinder 40 is held by the head 60 so that it cannot rotate and cannot be pulled out. Note that the concave portion 46 and the convex portion 62b may be interchanged so that the convex portion is provided in the cylinder 40 and the concave portion is provided in the head 60. In the illustrated example, the cylindrical body 40 and the head 60 are separate bodies, but they may be integrally connected. And when making the lower end of the inner cylinder 61 contact | abut on the upper surface of the foaming member 50 like the example of illustration, it can function as a removal prevention of the foaming member 50. FIG.

  As shown in FIG. 1, the head 60 includes a top wall 63 that covers the screw portion 33 of the base cap 30, and an outer peripheral wall 64 that surrounds the screw portion 33 is provided at the edge of the top wall 63. . Here, a screw corresponding to the screw portion 33 is formed on the inner peripheral surface of the outer peripheral wall 64, and the outer peripheral wall 64 functions as a threaded portion linked to the screw portion 33. Accordingly, when the head 60 is rotated in a direction in which the engagement between the screw portion 33 and the screwed portion 64 is released, the head 60 and the cylinder body 40 can be raised. Further, an inner annular wall 63a that is slidable and airtightly in contact with the radially inner side surface of the screw portion 33 is provided on the lower surface of the top wall 63.

  Further, a nozzle 65 is integrally connected to the upper portion of the top wall 63 of the head 60. The inside of the nozzle 65 serves as a discharge passage H communicating with the merge space G, and the contents can be discharged from the tip opening 66 of the nozzle 65. On the other hand, in the nozzle 65, a rear end opening 67 is formed on the opposite side of the front end opening 66.

  Reference numeral 70 is a check valve. In the illustrated example, the check valve 70 includes an annular valve body 72 that elastically displaces outside the ring 71. The ring 71 is fitted and held in the outer cylinder 62 of the head 60, and the valve body 72 is in close contact with the lower surface of the top wall 63. As a result, air and contents from the filling space M side are prevented from flowing into the discharge passage H, while outside air or the like is introduced from the discharge passage H into the filling space M through the return hole 24a.

  As shown in FIG. 5, the foam ejection container configured as described above is pressurized in the filling space M under the action of the check valve 70 in accordance with the squeezing of the body portion 12, and the contents are the suction pipe p, The merging space G is reached via the gap between the inner ribs 23 a and the gap between the connecting pieces 44. Similarly, the pressurized air reaches the merge space G via the suction port 21b, the vertical groove 23b, the horizontal groove 23d, and the gap between the connecting pieces 44. Then, the contents that are foamed by passing the contents and air through the foaming member 50 are discharged from the tip opening 66 of the nozzle 65 through the discharge passage H.

  When the head 60 is lowered as shown in FIG. 5, the top wall 23c of the annular portion 23 of the cylinder 20 and the stepped portion 42 of the cylindrical body 40 approach each other, and the air flow path is narrowed. The contents are mixed with a relatively small amount of air and become a foam with a wet feeling.

  Thereafter, when the squeezing of the body 12 is released as shown in FIG. 6, the flexible body 12 is restored to its original shape. As a result, the filling space M has a negative pressure, and the foamed residual content in the discharge passage H is pulled back to the rear end side of the discharge passage H together with the outside air. Here, while the inside of the cylinder 40 is relatively difficult to flow air or the like by the longitudinal groove 23b, the lateral groove 23d, etc. in addition to the foam member 50, the check valve 70 is connected to the filling space M from the discharge passage H. Since the flow toward the direction is easily released, the residual content can be pulled back to the filling space M from the return hole 24a through the annular passage K.

  Here, when the contents pulled back into the suction port 21b enter, the mixing ratio of the contents in the merged space G and the air changes from the expected ratio, and the foam quality of the contents to be discharged deteriorates ( In the example shown in the figure, the cylindrical portion 25 is provided to cover the suction port 21b. Therefore, even if the amount of residual content that is pulled back repeatedly increases, The expected foam quality can be maintained.

  Further, when the head 60 is rotated in a direction in which the engagement between the threaded portion 33 and the threaded portion 64 is released, the head 60 and the cylindrical body 40 can be raised as shown in FIG. Thereby, the top wall 23c of the annular portion 23 in the cylinder 20 and the stepped portion 42 of the cylindrical body 40 are separated from each other, and a gap is formed between them, so that the content is a relatively large amount of air and It will be mixed and it will become a foam with a dry feeling.

  Then, as shown in FIG. 8, for example, when the display indicating the change in foam quality accompanying the rotation of the head 60 is provided on the outer wall 31 of the base cap 30 and the outer peripheral wall 64 of the head 60, the alignment of the head 60 is performed. Since it becomes easy, usability can be improved more.

  Further, the head 60 is preferably provided with a stopper to prevent the head 60 from being rotated more than the intended amount of rotation and easily coming off. Such retaining can be achieved, for example, by providing claw portions on the radially inner side of the screw portion 33 and the radially outer side of the inner annular wall 63a as shown in FIGS. 9 (a) and 9 (b).

  According to the present invention, since the foam quality of the contents can be changed by a simple switching operation, an easy-to-use foam ejection container can be provided.

DESCRIPTION OF SYMBOLS 10 Container body 11 Mouth part 12 Body part 20 Cylinder 21a Suction port 21b Suction port 22a Cylindrical body 23 Annular part 23b Vertical groove 23c Top wall 23d Horizontal groove 23c Horizontal groove 24 Outward flange 24a Return hole (through hole)
30 Base Cap 33 Threaded Part 40 Cylinder 41 Cylinder Body Part 42 Stepped Part 60 Head 64 Peripheral Wall (Screw Part)
65 Nozzle 66 Front end opening 67 Rear end opening G Merge space H Discharge passage M Filling space

Claims (3)

A container main body having a flexible body portion, the inside of which is a filling space for contents, and a suction port that forms a bottomed cylinder and introduces the contents and air in the container main body to the inside And a cylinder having a suction port, a base cap that is integrally connected via an outward flange provided on the cylinder, and is attached to the mouth portion of the container body to hold the cylinder suspended, and an inner peripheral surface of the cylinder A cylinder that extends toward the bottom of the cylinder and forms a merge space for the contents and air inside the cylinder, and a discharge passage that communicates with the merge space. A nozzle that mixes and foams the contents and air and discharges the foam-like contents from the opening of the tip, and a head that is integrally connected to the nozzle and that connects the cylinder so that it cannot rotate and cannot be pulled out. Prepare A jet container,
The cylinder has an annular portion standing on the inside of the cylindrical body,
The cylindrical body includes a stepped portion covering the top wall of the annular portion on the inner peripheral surface of the cylindrical body,
Air between the outer peripheral surface of the annular portion and the inner peripheral surface of the cylindrical body and between the top wall of the annular portion and the stepped portion of the cylindrical body from the suction port toward the merge space. Provide a vent passage to pass through,
The head is provided with a threaded portion that is linked to the threaded portion formed on the base cap, and a gap is formed between the top wall and the stepped portion when the head is raised as the head rotates. A foam ejection container characterized by increasing the amount of air to be introduced.   The said ventilation path consists of the vertical groove provided in at least one of the outer peripheral surface of the said annular part and the internal peripheral surface of the said cylinder, and the horizontal groove provided in at least one of the said top wall and the said step part. The foam ejection container as described.   The outward flange is formed with at least one return hole penetrating the front and back, and the nozzle is provided with a rear end opening penetrating the rear end side thereof, and the inside of the discharge passage is provided along with the restoration of the body portion. The foam ejection container according to claim 1 or 2, further comprising a back suction function for drawing the residual contents back into the filling space through the return hole.

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