JP2011111202A - Spout container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spout container having a spout valve simply constituted by laminating thin valve bodies each with a valve hole. <P>SOLUTION: The spout container includes: a container body 2 standing an opening neck part 4; a cap 10 including a cap cylinder 12 hanging a peripheral wall 20 from the outer periphery of a top wall 14 with a spout part 16 and fitting the peripheral wall 20 on the outer face of the opening neck part 4; and a valve plate 30 horizontally provided in a spouting path P inside the cap cylinder 12 by placing an expansion space D between the top wall 14. The valve plate 30 is constituted so that the outer peripheral parts C of double thin film-like valve bodies 32 and 34 with shapes corresponding to a cross-sectional face of the spouting path P are brought into close contact with each other, and the valve parts except these outer peripheral parts are separably brought into contact with each other, and on the valve part except these outer peripheral parts C, a lower side valve hole H<SB>L</SB>and an upper side valve hole H<SB>U</SB>are respectively opened so as not to overlap seen from the vertical direction to form the spouting valve v, and at least upper side valve body 34 is bent by a liquid pressure in the spouting path part on the upstream of the spouting valve to open the spouting valve v. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dispensing container, and more particularly to a dispensing container with a dispensing valve that has an action of opening by tilting the container body and closing by canceling the tilted state.

  In order to realize the above action, a partition wall having a valve hole in the outer peripheral portion is provided at an appropriate position of the discharge passage, and a discharge valve body whose peripheral portion is elastically deformed is installed above the central portion of the partition wall. (See FIG. 1 of Patent Document 1 and FIG. 2 of Patent Document 2).

  Contrary to these pouring valves, a slit is formed in the center of one flexible membrane attached to the back of the spout, and the slit is formed by deformation and restoration of the center of the membrane. A valve that opens or closes is also known (Patent Document 3).

JP-A-8-26311 JP2008-111335A Special table 11-513002

  In the containers of Patent Document 1 and Patent Document 2, a partition wall having a valve hole and to which a valve body can be attached must be formed as a part of the container body or attached to the container body, and the structure on the container body side is complicated. It becomes.

  In the container of Patent Document 3, when the film is loosened, the slit is not completely closed, and the sealing property is poor.

  The first object of the present invention is to provide a dispensing container having a dispensing valve that is simply constructed by stacking thin valve bodies with valve holes.

  A second object of the present invention is to propose a dispensing container having a relatively good sealing performance, which is a dispensing valve formed by stacking thin valve bodies with valve holes.

  The third object of the present invention is to propose a pouring container capable of easily setting a pouring valve formed by stacking thin valve bodies with valve holes.

The first means is
A container body 2 that stands up the mouth and neck 4;
A cap 10 that includes a cap cylinder 12 that hangs a peripheral wall 20 from the outer periphery of the top wall 14 with a pouring portion 16, and the peripheral wall 20 is fitted to the outer surface of the mouth neck 4;
A valve disc 30 disposed laterally between the top wall 14 in the extraction path P inside the cap cylinder 12, and
The valve disc 30 is formed by closely adhering the outer peripheral portions C of double thin-film valve bodies 32 and 34 having a shape corresponding to the cross section of the extraction passage P,
The valve body portions excluding the outer peripheral portion C are detachably brought into close contact with each other, and the valve hole portions _HL opened to the container body 2 side so as not to overlap each other when viewed from the vertical direction, the valve hole H _U that opens into the dispensing unit 16 side to form a note-off valve v by opening,
At least the upper valve body 34 is bent by the hydraulic pressure in the portion of the discharge passage upstream of the discharge valve, and the discharge valve v is opened.

In this means, as shown in FIG. 1, a thin valve body is vertically stacked to form the dispensing valve v. Upper valve body, a valve hole (upper valve hole that) H _U that opens into the pouring portion of the cap, the valve body of the lower also, that the valve hole (lower valve hole which opens into the container side ) Each has H _L and is arranged so that the upper valve hole and the lower valve hole do not overlap. Since the valve hole of the other valve body is sealed with one valve body, the structure of the valve is simplified. Moreover, since the valve bodies are in close contact with each other, the sealing property is good.

The “pour-out portion” refers to a pour-out port or a portion that can open a pour-out port. The “double valve element” may overlap two separate valve elements, but may fold a film including two valve element equivalent portions as shown in FIG. They valve body corresponding portions, the perforated portion A ₁ of one of the valve body in the non-perforated portion B ₁ of the other valve body, imperforate part B of one of the valve body perforated portion A ₂ of the other of the valve body _{2 so} that each can be sealed. “Thin film shape” refers to a film shape, a sheet shape, a thin plate shape, and the like.

  The second means includes the first means, and a peripheral end portion 30 a of the valve disc 30 is attached between the upper end surface 6 of the mouth neck portion 4 and the peripheral portion 14 a of the top wall 14.

  In this means, as shown in FIG. 1, a valve disc is attached to the upper end surface of the mouth neck and the peripheral portion of the top wall. The mounting method will be described later. In Patent Document 1 described above, the partition wall for attaching the valve body is formed continuously on the mouth and neck of the container body. However, a dedicated mold for the container body is required, resulting in an increase in cost. In the method of this means, since the valve disc is attached between the upper end surface of the mouth-and-neck portion and the cap, it is not necessary to greatly change the structure of the existing container body, and it is economical.

The third means includes the second means, and the valve disc 30 is continuously formed as one flexible sheet-like material in which valve bodies 32 and 34 having the same shape are connected to each other on one side. In addition, a double valve body is formed by folding back at the continuous portion, and the valve holes H _U and H _{L of the} valve bodies are configured so as not to overlap in a state of being folded back so that the contours of the valve bodies match each other. Do it.

  In this means, as shown in FIG. 3, the double valve body that is continuously formed is folded back at a continuous portion to form a dispensing valve. The valve holes may be arranged so that the valve holes do not overlap with each other when folded at the continuous portion, whereby the positioning work between the valve holes can be omitted. Therefore, the assembly to a cap (or container body) becomes easy.

The fourth means has the second means or the third means, and the cap 10 is screwed into the mouth-neck portion 4 of the container body 2;
The valve disc 30 has double valve bodies 32 and 34 attached to the inside of a ring-shaped frame 38, and this frame is placed between the upper end surface 6 of the mouth neck 4 and the peripheral portion 14 a of the top wall 14. In this sandwiched state, a gap G is provided between the peripheral portion 14a of the top wall 14 and the upper valve body 34.

  In this means, it is proposed to attach a double valve body to the frame as shown in FIG. In the structure in which the cap cylinder is screwed into the mouth and neck of the container body, when the double valve body is sandwiched between the mouth neck and the top wall of the cap cylinder, the top of the cap cylinder is screwed when the cap cylinder is screwed. The wall may rub against the outer peripheral portion of the double valve body and the sheet may be displaced. Therefore, in this means, a double valve body is attached to the frame body, and this frame body is sandwiched between the top wall and the mouth and neck portion.

  The fifth means includes the fourth means, and the valve disc 30 is formed by overlapping two separately formed valve bodies 32 and 34 and joining the outer peripheral portions C of these valve bodies.

  In this means, two separate valve bodies are stacked to form a valve disc. Thereby, the thickness of each valve body and the freedom degree of design of material increase. For example, the lower valve body can be formed of a material having poor deformability, and the upper valve body can be formed of a material having high deformability.

  The sixth means includes any one of the first means to the fifth means, and the container body 2 is a laminated container body including an outer layer 2a and an inner layer 2b that can be peeled off from the outer layer.

  This means cites a laminated container body as an example of a container body suitable as an application target of the dispensing valve of the present invention. The present invention can be applied to, for example, a flexible pouch container body, but the surface is recessed due to the content being poured out, and the appearance is damaged. Such an inconvenience can be avoided with a laminated container body.

  According to the invention relating to the first means, the dispensing valve can be easily formed by overlapping the double valve bodies 32 and 34 having valve holes that do not overlap with each other, and the sealing performance is relatively good. .

  According to the invention relating to the second means, since the peripheral end portion 30a of the valve disc 30 is attached between the upper end surface 6 of the mouth-and-neck portion 4 and the peripheral portion 14a of the top wall 14, attachment work is easy.

  According to the third aspect of the invention, since the valve holes do not overlap when the double valve bodies 32, 34 are continuously formed and folded, there is no need to adjust the positions of the valve holes. .

  According to the invention relating to the fourth means, since the gap G is formed between the double valve body and the top wall 14 by attaching the double valve body to the frame body 38, it is possible to prevent the valve body and the top wall 14 from rubbing. .

  According to the fifth aspect of the invention, since the valve disc 30 is formed by two separately molded valve bodies, the strength, material, etc. for each valve body are appropriately selected so as to obtain an appropriate valve function. can do.

  According to the invention relating to the sixth means, since the container body is a laminated container body, the surface of the container body is not recessed due to the contents being poured out, and the appearance is not impaired.

It is a longitudinal cross-sectional view of the extraction container which concerns on 1st Embodiment of this invention. It is a top view of the principal part of the container of FIG. It is a perspective view of the principal part of FIG. It is a longitudinal cross-sectional view explaining the effect | action of the container of FIG. It is a figure which shows the manufacture process of the container of FIG. It is a longitudinal cross-sectional view of the extraction container which concerns on 2nd Embodiment of this invention. It is a partially expanded sectional view of the container of FIG. It is a longitudinal cross-sectional view of the Example of the container of FIG.

  1 to 5 show a dispensing container according to the first embodiment of the present invention. This dispensing container is formed by the container body 2, the cap 10 and the valve disc 30. Each of these members can be formed of a synthetic resin unless otherwise specified.

  The container body 2 erects the mouth and neck portion 4 from the trunk portion. The upper part of the mouth-and-neck part 4 in the illustrated example is formed in a reduced diameter part 4a having a smaller inner diameter than the lower part of the mouth-and-neck part, and a flange is attached to the upper end of this reduced diameter part. Thereby, the upper end surface 6 of the mouth-and-neck part 4 is made into the wide surface suitable for mounting of a valve disc. An engaging rib 8 is provided around the base of the mouth / neck portion 4.

  As a preferred embodiment, the container body 2 can be formed into a laminated container body in which the inner layer 2b can be peeled from the outer layer 2a. In order to allow the outer layer 2a and the inner layer 2b to be peeled off, an outside air introduction hole 9 is formed in the outer layer portion of the mouth / neck portion 4.

  The cap 10 includes a cap cylinder 12 and a lid body 24.

  The cap cylinder 12 hangs a peripheral wall 20 from the outer periphery of the top wall 14 with the extraction portion 16, and the peripheral wall 20 is screwed into the lower portion of the mouth and neck portion 4. Instead of the screw-type peripheral wall, a stopper-type structure that is forced down and fitted to the mouth-and-neck portion 4 may be used. In the preferred illustrated example, the fitting ring 21 is attached to the lower end portion of the peripheral wall so as to be breakable. The fitting ring 21 is non-separably fitted to the above-described engagement rib 8 and has a sealing function.

  The top wall 14 is formed by a peripheral portion 14 a facing the reduced diameter portion 4 a of the mouth and neck portion 4 and a central portion 14 b including the extraction portion 16. The back surface inner side of the peripheral part 14a is formed in the annular and downward engaging step part 18 for fitting the peripheral edge part of a valve disc. Further, as shown in FIG. 1, the lower surface of the top wall central portion 14b is higher than the step surface of the engaging step portion. The height difference is a bulge allowance D of the valve disc described later.

  In the illustrated example, the periphery of the extraction portion 16 is surrounded by a break line and the pull ring protrudes from the upper surface of the extraction portion. However, the extraction port may simply be opened. The flow path from the lower end of the mouth / neck section 4 to the extraction section 16 is referred to as an extraction path P.

  The lid body 24 connects the rear part of the lid peripheral wall depending from the outer periphery of the top plate to the cap cylinder 12 via a hinge 22.

The valve disc 30 is formed by vertically stacking substantially disc-like valve bodies 34 and 32 having the same dimensions. The valve hole H _U on the lower side of the valve body 32 the valve hole H _L of the lower communicating with the container body and communicating with the spout portion 16 side to the upper side of the valve body 34, there is no overlapping portions So that it opens. And the peripheral end part 30a of the valve disc 30 is clamped between the upper end surface 6 of the mouth-and-neck part and the engagement step part 18 of the cap cylinder 12, and the extraction valve v is formed. At least the upper valve body 34 has flexibility and elasticity, and is configured so as to bulge upward due to an increase in the hydraulic pressure in the pouring passage upstream of the valve disc 30 and to open the pouring valve v.

  In a preferred illustrated example, as shown in FIG. 2, two circular valve bodies 32, 34 of the same size are continuously formed on one side to form a bowl shape, and a folding line 36 that is easily refracted is provided at the continuous portion. When formed and folded back as indicated by an arrow in FIG. 3, the valve holes are formed so as not to overlap each other. This structure can be formed of, for example, a stretch film.

For convenience of explanation, when the valve bodies 32 and 34 are classified into three regions of a central portion, an inner peripheral portion, and an outer peripheral portion indicated by a one-dot chain line in FIG. 2, the central portion of one valve body 34 is a single valve. It is a perforated portion A ₁ having a hole H _U , and the central portion of the other valve body 32 is a non-porous portion B ₁ for closing the valve hole H _U in a liquid-tight manner.

The inner peripheral portion of the other valve body 32 is a perforated portion A ₂ having a plurality of valve holes _HL arranged equiangularly in the circumferential direction, and the inner peripheral portion of the one valve body 34 is the valve hole. it is a non-perforated portion B ₂ for closing the H _L in a liquid-tight manner.

To close the respective valve holes in a liquid tight manner, in a state overlaid together contour of the valve body 32, as viewed from above, between the valve hole H _L of the upper valve hole H _U and a lower side In addition, it is desirable to take a certain distance (blockage allowance).

  The outer peripheral portion C of each valve body corresponds to the peripheral end portion 30a of the valve disc, and is a portion to be sandwiched between the mouth neck portion 4 and the top wall 14.

  As a method for attaching the valve disc 30 to the container, it is preferable that the valve plate 30 is first temporarily welded to the cap 10 in a double valve plate state. That is, as shown by the arrows in FIG. 5, the double valve bodies 32 and 34 are set in the engagement step portion 18. And the outer peripheral part C of a double valve body is welded to the engagement step part 18 by the welding jig T. Since this welding is temporary fixing, it is only necessary to spot weld a plurality of locations in the circumferential direction of the outer peripheral portion C to the engaging stepped portion. As a result, the valve disc 30 is assembled into the cap 10.

  Thereafter, the container body 2 may be filled with the contents, and the cap cylinder 12 may be screwed into the mouth-neck portion 4 of the container body in the same manner as a normal cap. As a result, the peripheral end portion 30 a of the valve disc 30 is securely sandwiched between the locking step portion 18 and the upper end surface 6 of the mouth and neck portion 4. However, this method is a suitable example, and the procedure may be changed as appropriate.

  In the above configuration, when the lid body 24 is opened, and then the pulling ring is pulled to open the pouring portion 16, and then the container body 2 is tilted, the liquid flows into the mouth and neck portion 4. As shown in FIG. 4, the valve body 34 is bent and deformed by the fluid pressure in the mouth and neck, and the dispensing valve v is opened. Strictly speaking, the upper valve body 34 bends greatly and the lower valve body 32 bends small, but the deformation of the lower valve body is omitted in the drawing. Liquid is poured out by opening the dispensing valve v.

  When the container body 2 is returned to the upright state, the contents between the valve bodies 34 and 32 are sucked (or flowed down) to the container body 2 side, and the valve bodies 34 and 32 return to their original shapes. Thereby, the pouring valve v is closed. After opening the valve, the inner layer 2b is peeled from the outer layer 2a of the container body as shown by an imaginary line in FIG.

  Hereinafter, other embodiments of the present invention will be described. In these descriptions, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  6 and 7 show a dispensing container according to the second embodiment of the present invention. In the present embodiment, the structure of the valve disc 30 is changed.

  Specifically, the double valve bodies 32 and 34 are attached to the frame body 38, and the frame body is sandwiched between the upper end surface 6 of the mouth neck portion 4 and the peripheral portion 14 a of the top wall of the cap cylinder 12. It is a thing. In this sandwiched state, a gap G is provided between the peripheral portion 14a of the top wall and the upper valve body 34 as shown in FIG. Thus, when the cap 10 is screwed into the mouth / neck portion 4 of the container body, the upper valve body 34 can be prevented from being rubbed and damaged by the peripheral portion 14a of the top wall.

  In the illustrated example, the frame body 38 is formed in an L-shaped longitudinal section. The outer peripheral part C of the valve bodies 32 and 34 is mounted on the L-shaped horizontal plate part, and is welded.

  FIG. 8 shows an embodiment of the present invention, in which the container body of the container shown in FIG. 1 is a conventionally known double container body. This double container body is formed by suspending an inner container body 2B that can be contracted by a negative pressure from within the mouth and neck of the rigid outer container body 2A.

2 ... container body 2a ... outer layer 2b ... inner layer 2A ... outer container body 2B ... inner container body
DESCRIPTION OF SYMBOLS 4 ... Mouth neck part 4a ... Diameter-reduction part 6 ... Upper end surface 8 ... Engagement rib 9 ... Outside air inlet 10 ... Cap 12 ... Cap cylinder 14 ... Top wall 14a ... Peripheral part 14b ... Center part 16 ... Extraction part 18 ... engaging step portion 20 ... peripheral wall 21 ... engaging ring 22 ... hinge 24 ... lid 30 ... Benban 30a ... peripheral end portion 32, 34 ... valve body 36 ... fold line 38 ... frame P ... pouring outlet H _U ... ( Upper side valve hole H _L ... (lower side) valve hole D ... bulge allowance G ... gap v ... pouring valve A ₁ , A ₂ ... perforated part B ₁ , B ₂ ... non-porous part C ... outer peripheral part
T ... Welding jig

Claims (6)

A container body 2 that stands up the mouth and neck 4;
A cap 10 that includes a cap cylinder 12 that hangs a peripheral wall 20 from the outer periphery of the top wall 14 with a pouring portion 16, and the peripheral wall 20 is fitted to the outer surface of the mouth neck 4;
A valve disc 30 disposed laterally between the top wall 14 in the extraction path P inside the cap cylinder 12, and
The valve disc 30 is formed by closely adhering the outer peripheral portions C of double thin-film valve bodies 32 and 34 having a shape corresponding to the cross section of the extraction passage P,
The valve body portions excluding the outer peripheral portion C are detachably brought into close contact with each other, and the valve hole portions _HL opened to the container body 2 side so as not to overlap each other when viewed from the vertical direction, the valve hole H _U that opens into the dispensing unit 16 side to form a note-off valve v by opening,
A pouring container characterized in that at least the upper valve body 34 is bent by the hydraulic pressure in the pouring passage upstream of the pouring valve, and the pouring valve v is opened.   The dispensing container according to claim 1, wherein a peripheral end portion (30a) of the valve disc (30) is attached between the upper end surface (6) of the mouth / neck portion (4) and the peripheral portion (14a) of the top wall (14). The valve disc 30 is formed by continuously forming valve bodies 32, 34 having the same shape as a single flexible sheet-like material that is continuous at one side, and is folded at the continuous location to form a double valve body. In addition, the valve holes H _U and H _{L of} each valve body are configured so as not to overlap in a state in which the contours of the valve bodies are folded back to coincide with each other. Out container. The cap 10 is screwed into the mouth / neck portion 4 of the container body 2,
The valve disc 30 has double valve bodies 32 and 34 attached to the inside of a ring-shaped frame 38, and this frame is placed between the upper end surface 6 of the mouth neck 4 and the peripheral portion 14 a of the top wall 14. The gap G is provided between the peripheral portion 14a of the top wall 14 and the upper valve body 34 in the sandwiched state, and the gap G is provided in the sandwiched state. Pouring container.   3. The dispensing container according to claim 2, wherein the valve disc 30 is formed by overlapping two separately formed valve bodies 32 and 34 and joining outer peripheral portions C of these valve bodies. The dispensing container according to any one of claims 1 to 3, wherein the container body 2 is a laminated container body including an outer layer 2a and an inner layer 2b that can be peeled from the outer layer.