JP6012985B2 - Tube container - Google Patents

Description

  The present invention relates to a container that can be poured out in the form of foam.

  For containers containing various liquid detergents such as shampoos, body soaps, hand soaps, facial cleansers, and hair conditioners such as set lotions, from the viewpoint of simplifying use by omitting foaming operations, for example, from mesh Various foam ejection containers have been proposed that allow the contents and air to be mixed and passed through the foaming member to be poured out in a foamed state. As such, for example, as described in Patent Document 1, a squeeze container that squeezes the body part of the container to foam the contents, or a pump that incorporates a foam member inside is used as the mouth part of the container. A container equipped with a former pump is known.

Japanese Utility Model Publication No. 58-174272

  By the way, the conventional containers as described above are usually installed and used in a predetermined place by using a relatively hard self-supporting bottle, and the appearance of a container having excellent portability is strongly demanded. It was. In addition, in the above-described squeeze container, when the squeeze container is squeezed with a relatively weak force, the content may be poured out without causing foaming to cause dripping, and there is still room for improvement in this respect.

  An object of the present invention relates to a container that can be poured out in the form of foam, and in particular, proposes a container that is excellent in portability and that can sufficiently reduce the risk of dripping even when squeezed with a weak force. By the way.

The present invention is a tube container comprising a tube main body portion having a filling space for contents and a mouth and neck portion integrally connected to the tube main body portion,
On the inside of the mouth and neck, the and holder is provided with an air inlet hole and contents introduction hole passing respective air and contents of the filling space, the tip of the mouth and neck, and the holder between mutually nozzle comprising a tip opening leading to Rutotomoni internal space having a internal space is provided in,
The holder communicates with the air introduction hole and extends to the bottom of the tube main body, and a valve body capable of opening and closing between the air introduction hole, the content introduction hole, and the internal space. And
The valve body is in contact with the inner wall of the holder in a steady posture of the tube main body, and closes the air introduction hole and the content introduction hole and the internal space, and the shielding wall It is elastically held, and the air and the contents in the filling space are foamed through the foaming member disposed in the internal space by the displacement of the shielding wall toward the nozzle accompanying the compression to the tube main body. An elastic part that pours out from the opening at the front end and draws back the remaining contents in the internal space to the filling space by displacement of the shielding wall toward the filling space accompanying the restoration of the tube body part,
The shielding wall is separated from the inner wall of the holder by the displacement of the shielding wall toward the filling space accompanying the restoration of the tube main body, and residual contents in the inner space are separated between the shielding wall and the inner wall. It is a tube container characterized by being pulled back to the filling space.

  It is preferable that the elastic portion is a spiral spring member and has a natural length when the tube main body portion is in a steady posture.

It is preferable that the said valve body is what the said shielding wall and the elastic part are integrally connected by the synthetic resin material.

It is preferable that the holder is provided with a stopper that extends toward the bottom of the tube main body and regulates the amount of squeezing deformation of the tube main body.

The air inlet holes and contents introduction hole is provided on the inner side of the stopper, it is preferable that through holes for circulating the contents to the stopper is provided.

  Since the bubble-like contents can be poured out in the tube container, it is easy to carry, and the contents can be poured out in a bubble-like form regardless of the place of use. In addition, a valve body is provided in the internal space formed between the holder and the nozzle, and in the steady posture of the tube body portion, the shielding wall and the inner wall of the holder are brought into contact with each other, and the air introduction hole and the content introduction hole Since the space between the inner space and the inner space is closed, even if the tube main body portion is squeezed with a relatively weak force, the flow path does not open, and dripping of the contents can be effectively prevented. Moreover, since the shielding wall of this valve body is elastically held by the elastic portion, the flow passage is opened by squeezing the tube main body portion, and the contents in the filling space are poured out in the form of foam. In addition, when the tube main body is restored by releasing the compression, the flow path can be opened by the negative pressure of the filling space, and the residual contents can be pulled back into the filling space.

  When the elastic part is a spiral spring member and is made to have a natural length during the steady posture of the tube body part, the elastic force from the elastic part does not act on the shielding wall in the steady posture of the tube body part, As a result, the contact between the shielding wall and the inner wall of the holder is maintained, so that leakage of contents can be reliably prevented.

  When the shielding wall and the elastic portion are integrally connected with the synthetic resin material, the number of parts and the number of assembling steps can be reduced, which is advantageous in terms of cost.

  If the holder is provided with a stopper that extends toward the bottom of the tube body and regulates the amount of squeezing deformation of the tube body, the foam quality is as expected even when squeezing with a stronger force than expected. The contents can be poured out, and even in such a case, breakage of the container can be prevented.

  When the air introduction hole and the content introduction hole are provided inside the stopper and the through hole through which the content is circulated is provided in the stopper, these holes will not be blocked even if they are squeezed with a strong force. The contents of can be constantly and stably poured out.

It is sectional drawing in the normal attitude | position of a tube main-body part about embodiment of the tube container according to this invention. It is sectional drawing which shows the principal part of the tube container shown in FIG. It is sectional drawing which shows the state which removes an overcap from the tube container shown in FIG. 2, displaces it to a reverse attitude | position, and also squeezes a tube main-body part, Comprising: Only one side is shown with respect to the axis line of a tube container. It is sectional drawing which shows the state which cancels | squeezes the tube main-body part shown in FIG. 3, and a tube main-body part restore | restores, Comprising: Only one side is shown with respect to the axis line of a tube container.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a cross-sectional view of a tube main body portion in a steady posture according to an embodiment of a tube container according to the present invention, and FIG. 2 is a cross-sectional view showing a main part of the tube container shown in FIG. FIG. 3 is a cross-sectional view showing a state in which the overcap is removed from the tube container shown in FIG. 2 and displaced in an inverted posture, and the tube main body is further squeezed, and is a view showing only one side with respect to the axis of the tube container. 4 is a cross-sectional view showing a state in which the tube main body portion shown in FIG. 3 is released and the tube main body portion is restored, and shows only one side with respect to the axis of the tube container. In addition, in this specification, the inverted posture is not limited to the posture in which the tube container is completely turned upside down as shown in FIG. 3, and the posture in which the tube container is inclined with the tip opening for pouring the contents downward. Is also included.

  In FIG. 1, the code | symbol 11 is a tube main-body part. The tube main body 11 includes a bottom 11a formed by, for example, adhering one of cylindrical bodies made of a single layer synthetic resin material by heat sealing. In addition, a head 12 having, for example, a mouth-and-neck portion 12a and a shoulder portion 12b is connected to the other side, thereby forming a filling space M for contents inside the tube main body portion 11. In addition, as what forms the tube main-body part 11, various things are applicable according to the content, for example, using the multilayer body provided with the barrier layer and light-shielding layer which prevent permeation | transmission of oxygen is used. Can do. In the illustrated example, a threaded portion 12c is provided on the outer peripheral surface of the mouth / neck portion 12a. Further, an inward flange 12d is provided on the inner peripheral surface of the mouth / neck portion 12a.

  Reference numeral 20 denotes a holder provided inside the mouth / neck portion 12a. As shown in FIG. 2, the holder 20 includes a bottomed cylindrical holder main body 21 that is held in contact with the inner peripheral surface of the mouth / neck portion 12a and the upper surface of the inward flange 12d. An inner cylinder 22 erected from the bottom thereof is integrally connected to the inner side of the holder main body 21 in the radial direction, and an opening 23 is formed on the inner side of the inner cylinder 22 in the radial direction. A step 22 a is provided at the tip of the inner cylinder 22.

  The holder 20 has a cylindrical fitting portion 24 disposed on the filling space M side of the opening 23. The fitting portion 24 is formed by a plurality of ribs 25 provided at intervals in the circumferential direction. The bottom part of the part 21 is integrally connected. The fitting portion 24 holds a pipe p that extends toward the bottom portion 11 a of the tube main body portion 11. As a result, the holder 20 has an air introduction hole 26 for introducing the air in the filling space M inside the fitting portion 24 and a content introduction for introducing the contents in the filling space M between the adjacent ribs 25. A hole 27 is formed.

  In the illustrated example, a cylindrical stopper 28 that surrounds the air introduction hole 26 and the content introduction hole 27 and is integrally connected to the bottom portion of the holder main body portion 21 and extends toward the bottom portion 11 a of the tube main body portion 11 is provided. The stopper 28 is provided with at least one through hole 29 at a portion adjacent to the content introduction hole 27.

  Reference numeral 30 shown in FIG. 2 is a nozzle that is held by engaging the claw portions in the illustrated example with the tip of the mouth-and-neck portion 12a. The nozzle 30 includes a disk-shaped top wall 31 that covers the mouth-and-neck portion 12 a together with the holder 20, an outer peripheral wall 32 that is integrally connected to the outer peripheral edge of the top wall 31 and is held by the mouth-and-neck portion 12 a, and the top wall 31. And an inner peripheral wall 33 that engages with the inner peripheral surface of the holder main body 21, and a pouring cylinder 34 that stands up by being integrally connected to the inner peripheral edge of the top wall 31. Thereby, an internal space N is formed between the holder 20 and the nozzle 30. In addition, a tip opening 35 that communicates the internal space N with the outside world is provided at the tip of the dispensing tube 34.

  The code | symbol 40 shown in FIG. 2 is a valve body. In the illustrated example, the valve body 40 is integrally connected to the flange 41 held by the step portion 22 a of the holder 20, a spring member (elastic portion) 42 that is integrally connected to the flange 41 and spiral, and the elastic portion 42. And a shielding wall 43 that is inserted into the opening 23 of the holder 20 and abuts against the inner wall of the holder 20. Here, the spring member 42 is in contact with the inner wall of the holder 20 in a natural length state.

  In the illustrated example, the valve body 40 is a single member formed of a synthetic resin material. However, depending on the required elastic force, for example, a metal spring can be used as the elastic portion 42. Further, the shape of the elastic portion 42 is not limited to a spiral shape, and for example, a plurality of elastic pieces having a lateral U shape or V shape are arranged in the circumferential direction, and the flange 41 and the shielding wall 43 are connected by these elastic pieces. You can also Further, in the illustrated example, the flange 41 is located on the nozzle 30 side and the shielding wall 43 is located on the filling space M side. May be provided so that the shielding wall 43 is located on the nozzle 30 side.

  A reference numeral 50 shown in FIG. 2 is a foam member provided in the internal space N. The foam member 50 is composed of a ring 51 fitted and held on the inner peripheral surface of the nozzle 30 and a mesh 52 fixed to the end surface of the ring 51, and the air-mixed contents are passed through the foam member 50. It can be foamed into a foam. 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.

  Reference numeral 60 shown in FIG. 2 is an overcap. The overcap 60 includes a top wall 61 that covers the nozzle 30, a peripheral wall 62 that is integrally connected to the outer peripheral edge of the top wall 61 and surrounds the mouth neck portion 12 a, and a top wall 31 that is integrally connected to the top wall 61. A cap stopper 63 extending toward the top and a seal wall 64 that is integrally connected to the top wall 61 and that abuts against the tip opening 35 to prevent leakage of contents. In addition, a screw portion 65 corresponding to the screw portion 12c of the mouth and neck portion 12a is provided on the inner peripheral surface of the peripheral wall 62, and the overcap 60 is detachably held on the mouth and neck portion 12a. In addition, it may replace with these thread parts and you may hold | maintain by an undercut. Further, the cap stopper 63 prevents the screwing of a predetermined amount or more by contacting the top wall 31 when the overcap 60 is screwed too much, and is annular in the illustrated example, but may be provided intermittently. .

  As shown in FIGS. 1 and 2, the tube container configured as described above is an opening in which the shielding wall 43 of the valve body 40 is provided in the holder 20 in a normal posture where no force is applied to the tube main body 11. 23 is in contact with the wall surface 23, and the air introduction hole 26, the content introduction hole 27, and the internal space N are closed. Further, since the shielding wall 43 is elastically held by the elastic portion 42, even if the tube main body portion 11 is squeezed with a weak force in a state where the overcap 60 is removed, the flow path remains closed. Does not open, and dripping of the contents can be effectively prevented.

  And when pouring out the contents, as shown in FIG. 3, the tube container is displaced to an inverted posture. The filling space M is in a state in which air and contents are accommodated, and the contents move to the contents introduction hole 27 side by being displaced in a reverse posture. On the other hand, the air moves to the bottom 11a side opposite to the air introduction hole 26. However, since the pipe p extends toward the bottom 11a, the air is fed into the air introduction hole 26 through the pipe p. be able to. Before the displacement to the reverse posture, the contents have entered the pipe p. However, since the air in the pipe p moves to the bottom 11a side with the reverse posture, It can be extruded from the pipe p. In addition, when the stopper 28 is provided as shown in the drawing, it is preferable to provide a through hole 29 at a site adjacent to the content introduction hole 27, so that the content accumulated on the radially outer side of the stopper 28 can also be introduced into the content. It can be introduced into the hole 27.

  And if the trunk | drum of the tube main-body part 11 is squeezed, the inside of the filling space M will be pressurized and the shielding wall 43 of the valve body 40 will be displaced to the nozzle 30 side. As a result, the air and the contents pass through the air introduction hole 26 and the content introduction hole 27 to join, and are a spring member between the opening 23 and the shielding wall 43 and in the illustrated example. The foam member 50 passes through the elastic portion 42. Thereby, the contents can be foamed and poured out from the tip opening 35.

  Here, when the stopper 28 is provided as shown in the figure, since the amount of compression deformation of the tube main body 11 is regulated, the contents with the expected foam quality even when squeezing with a force stronger than expected. Can be dispensed, and breakage of the container can be prevented.

  Thereafter, when the pressing force to the body portion of the tube main body portion 11 is released, the tube main body portion 11 is restored, and thereby the inside of the filling space M becomes a negative pressure. Therefore, as shown in FIG. 4, the shielding wall 43 of the valve body 40 is displaced toward the bottom 11 a side of the tube main body 11, and the remaining contents remaining in the internal space N are separated from the opening 23 and the shielding wall. 43 passes through each other and is pulled back into the filling space M (back suction). As a result, it is possible to effectively prevent a problem that the contents drip. Then, after completion of the restoration of the tube main body 11, the shielding wall 43 is returned to the original position by the elastic portion 42 as shown in FIG. 1, and the contact with the wall surface of the opening 23 is maintained.

  According to the present invention, since it is excellent in portability, the foamed contents can be poured out regardless of the place of use, and the squeezing with a weak force that may occur in a conventional squeeze container is possible. However, it is possible to provide an easy-to-use tube container that can sufficiently reduce the risk of dripping.

DESCRIPTION OF SYMBOLS 11 Tube main-body part 11a Bottom part 12a Mouth-and-neck part 20 Holder 21 Holder main-body part 26 Air introduction hole 27 Contents introduction hole 28 Stopper 29 Through-hole 30 Nozzle 35 Tip opening 40 Valve body 42 Elastic part (spring member)
43 Shielding wall 50 Foam member M Filling space N Internal space p Pipe

Claims (5)

A tube container comprising a tube main body having a filling space for contents, and a mouth and neck connected integrally to the tube main body,
On the inside of the mouth and neck, the and holder is provided with an air inlet hole and contents introduction hole passing respective air and contents of the filling space, the tip of the mouth and neck, and the holder between mutually nozzle comprising a tip opening leading to Rutotomoni internal space having a internal space is provided in,
The holder communicates with the air introduction hole and extends to the bottom of the tube main body, and a valve body capable of opening and closing between the air introduction hole, the content introduction hole, and the internal space. And
The valve body is in contact with the inner wall of the holder in a steady posture of the tube main body, and closes the air introduction hole and the content introduction hole and the internal space, and the shielding wall It is elastically held, and the air and the contents in the filling space are foamed through the foaming member disposed in the internal space by the displacement of the shielding wall toward the nozzle accompanying the compression to the tube main body. An elastic part that pours out from the opening at the front end and draws back the remaining contents in the internal space to the filling space by displacement of the shielding wall toward the filling space accompanying the restoration of the tube body part,
The shielding wall is separated from the inner wall of the holder by the displacement of the shielding wall toward the filling space accompanying the restoration of the tube main body, and residual contents in the inner space are separated between the shielding wall and the inner wall. A tube container, wherein the tube container is pulled back to the filling space.   The tube container according to claim 1, wherein the elastic portion is a spiral spring member and has a natural length when the tube main body portion is in a steady posture. The valve body, the shielding wall and the tube container according to claim 1 or 2 and the elastic portion in which are integrally connected by a synthetic resin material. The tube container according to any one of claims 1 to 3, wherein the holder is provided with a stopper that extends toward a bottom portion of the tube main body portion and regulates a compression deformation amount of the tube main body portion. The air inlet holes and contents introduction hole is provided on the inner side of the stopper, the tube container according to claim 4 in which a through hole for circulating the contents to the stopper is provided.

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