JP2016016871A - Push-in operation part structure of liquid storage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid storage container in which, even when a push-in operation part 13 having a polycyclic flexible ring body is pushed in, a part where the shape is reversed is not generated on a chevron ring of the flexible ring body and the push-in operation part 13 can be repeatedly pushed in.SOLUTION: The push-in operation part 13 comprises flexible ring bodies 15 in which valley-shaped rings 16 having a valley shaped cross section and chevron-shaped rings 17 having a chevron shaped cross section are alternately and concentrically arranged. On plural positions of the chevron-shaped rings 17, salients 20 crossing a passage core 19 of a peak part 18 of the respective chevron-shaped ring 17 and becoming salient-state toward a push-in direction are provided.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a push-in operation unit which is provided in a container for storing a liquid to be used after being dispensed about a few drops or little by little, so that the stored liquid can be poured out in a small amount.

  2. Description of the Related Art Conventionally, an easy-to-handle container has been known in which two liquids separately stored can be poured out simultaneously when used. For example, we proposed a container that allows two kinds of spices and sauces to be added to food to be separated into a pair of adjacent storage parts, each consisting of a hard synthetic resin plate and a soft bag-like film. Has been. (Patent Document 1)

  In the container of Patent Document 1, synthetic resin plate materials of two storage portions are continuous, and the folding position at the center is set as a spout opening planned portion of each storage portion. Then, the spout is opened by folding between the synthetic resin plates, and the two storage parts are crushed between the plates to be folded. It is supposed that it can be poured out while adjusting the discharge amount by crushing.

  In addition, vacuum forming or the like is performed on a flexible synthetic resin sheet to form a sheet recess that protrudes outward from the sheet, and the space inside the sheet recess is covered. There has been proposed a container in which a film is heat-sealed on one side of a sheet, and two of the films and the sheet are used as a storage unit with a folded part at the center of the container interposed therebetween. (Patent Document 2)

  Specifically, the container shown in Patent Document 2 symmetrically arranges the two storage portions with the folding portion in between, and is folded from the folding portion so that the film side faces each other, and the two storage portions overlap at the same position, The spouts of the two storage portions that overlap each other are opened at the same position by, for example, tearing along the cut portion. Then, the two storage parts that protrude outwards are sandwiched between the fingertips and pushed together, so that the liquid stored in each can be simultaneously discharged from the spout, and the two liquids that have been discharged are mixed. For example, the chemical changes rapidly and the product liquid acts on the object.

  Even in a small container, an eye drop container is known as an application for dripping a small amount of liquid by pushing the storage part, and as shown in Patent Document 3, a device for regulating the dripping amount or a container body In addition, a device is also shown in which a bellows portion having a plurality of steps is provided so that the container liquid can be pushed in even if the container itself has high rigidity. (See Patent Documents 3 to 6)

JP 59-103866 A Japanese Patent No. 4560082 Utility Model Application Notice No. 3975 Japanese Utility Model Publication No. 40-021916 Japanese Utility Model Publication No. 48-036690 Japanese Utility Model Publication No. 05-04134

  Among the various containers described above, as shown in Patent Document 2, a sheet recess is formed in a synthetic resin sheet, and this is covered with a film with a pair of storage portions, and folded. The structure of the liquid storage container is simple because the two liquids sorted into the pair of storage parts are poured out simultaneously by opening the spouts together and pushing the storage part that protrudes outward to crush. However, there is an advantage that it can be provided as an inexpensive liquid storage container.

  Furthermore, it is also easy to taper a part of the storage part as a pouring part and make the tip part as a spout planned part, and as shown in Patent Document 2, the liquid storage is made by connecting the tapering part tapered to the storage part. In the container, even when the target to be applied or dripped is small, the two liquids can be poured out little by little toward the desired site, and the two liquids can be mixed in that part. It is also possible to expand the usage of a single-use product without accommodating so much.

  And in the container of the type that pours two liquids by folding in half and crushing the storage part together, when discharging the liquid to be stored by reducing the storage amount of each storage part, The storage unit may be repeatedly crushed and discharged in small amounts, and as described in the above-described patent document, the storage unit can be dealt with by forming a push-in operation unit that can be deformed using the bellows structure. It is considered possible.

  Therefore, in the case of the present applicant, when forming the sheet recess using a method such as vacuum forming with a sheet that is a synthetic resin plate material, the push operation part is also formed at the same time in a form having an easily deformable part. Tried. Specifically, around the central portion of the push-in operation portion, a concentric circle-shaped valley ring with a valley-shaped cross-section and a mountain-shaped ring with a cross-sectional cross-section are alternately arranged in a direction along the push-in direction. The push-in operation portion provided with the easily deformable annular portion is formed simultaneously with the formation of the sheet recess for the sheet made of the flexible synthetic resin plate material. In addition, the valley shape in the valley ring or the angle ring, the shape of the angle shape is the shape in the cross section of the plate material, it is uneven in the direction along the push direction, the valley ring is convex toward the push direction, The Yamagata ring was convex in the direction opposite to the indentation direction.

  However, when the expansion ring is deformed to extend in the push-in direction, the angle ring is bent halfway, and a development part that is opened in the radial direction of the expansion ring is formed once so that the shape of the angle ring is partially reversed. In other words, the developed portion in the radial direction has been a support for maintaining the stretched shape of the expandable annular body. That is, there has been a problem that the push-in operation portion remains depressed, and the liquid cannot be dispensed little by little by repeating the push-in operation.

  Therefore, in view of the above circumstances, the present invention has an object to prevent a portion where the shape of the chevron ring is reversed even when a push-in operation unit having a polycyclic expandable ring is pushed in, and push-in is performed. An object of the present invention is to obtain a liquid storage container in which an operation unit can be repeatedly pushed in.

(Invention of Claim 1)
The present invention has been made in consideration of the above problems, and is provided on one surface of the storage portion in the liquid storage container, and is stored in the storage portion from the storage portion toward the extraction portion continuous to the storage portion. A push-in operation unit capable of performing a push-in operation for sending out liquid;
The push-in operation part has a valley-shaped ring whose section is convex in the direction of pushing around the center of the operation part to be pushed inward of the storage part, and a mountain shape whose section is convex in the direction opposite to the push-in direction. It is provided with a stretchable annular body that is alternately arranged concentrically with the angled ring, and can be expanded and contracted in the direction along the pushing direction,
Pushing operation of a liquid storage container, characterized in that grooves are provided in a plurality of locations on each of the chevron rings and projecting in the pushing direction so as to intersect the cores of the peaks of the chevron rings. It is a part structure and provides the pushing operation part structure of this liquid storage container, and eliminates the said subject.

(Invention of Claim 2)
According to the present invention, the liquid storage container is configured such that the storage portion and the extraction portion continuous with the storage portion are formed as a sheet recess by a flexible sheet, and a flange is formed around the sheet recess. And a film that covers the sheet recess of the container body and is heat-sealed to the flange, and a liquid storage space is formed in the sheet recess between the container body and the film. And what
It is possible that the push-in operation part is provided in the storage part in the container body.

(Invention of Claim 3)
Further, according to the present invention, the liquid storage container has a fold line portion in the center, and two storage portions that are symmetrically arranged around the fold line portion are provided, and the two storage portions are pushed in. Each of the operation units can be arranged so as to be overlapped when folded from the fold line unit.

(Effect of the invention of claim 1)
When pushing in the push-in operation unit that has an expansion ring that does not have a groove in the chevron ring around it, the chevron ring has a circular shape in which the core of the peak part goes around in the circumferential direction. Move to deformation. However, the ridge part is difficult to deform because it forms the circular shape that is continuous in the circumferential direction, and stress concentrates on a part of the ridge part as the operation part is pushed in, and the mountain shape is partially reversed. By doing so, the stress is dispersed. As described above, once a deployment part that is opened in the radial direction of the inverted expansion and contraction ring is formed, it is not restored to a mountain shape even when the pushing operation is finished, and the expansion part in the radial direction is It becomes a part that maintains the stretched shape inappropriately.

  On the other hand, according to the first aspect of the present invention, since the groove portion that protrudes in the pushing direction is provided so as to cross the core of the peak portion of the mountain-shaped ring, the peak portion of the mountain-shaped ring is in the circumferential direction. It does not form a circular shape around, and is discontinuous. Therefore, when the telescopic ring is extended by pushing and deforms in the direction in which the peak of the mountain-shaped ring shrinks, the adjacent peaks become closer to each other with the groove (recess) in between, and the mountain-shaped inversion The concentration of stress up to the point does not occur at the peak. Therefore, there is no unfolded part that improperly maintains the stretched shape of the telescopic ring, so if the pushing force is released, the entire pushing operation part will return to its original shape, and the pushing operation will be repeated. Can be done.

(Effect of the invention of claim 2)
According to invention of Claim 2, the structure of the container itself which distribute | arranges the said pushing operation part to a storage part is simple, and there exists an outstanding effect that the container can be manufactured cheaply.

(Effect of the invention of claim 3)
According to invention of Claim 3, in the container of the use of mixing two liquids and making it act on a target object, it can be set as the container which pours out two liquids little by little.

It is an explanatory view showing an example of a two-fold type liquid storage container in which the push-in operation part structure of the liquid storage container according to the present invention is implemented, showing a developed state before the two-fold. It is explanatory drawing which shows the single side | surface side of the liquid storage container folded in half. It is explanatory drawing which shows the state before pushing of a pushing operation part in the cross section of the position along FIG. 2A-A. It is explanatory drawing which shows the state of pushing of a pushing operation part in the cross section of the position along line 2A-A. It is explanatory drawing which shows the expansion-contraction annular body and groove part in a pushing operation part in the cross section of the position along line BB.

  Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a liquid storage container. The liquid storage container 1 is a container body 2 made of a sheet of flexible synthetic resin and a film 3 which is heat-sealed on one side of the container body 2. And a pair of portions which can accommodate liquid between the container body 2 and the film 3 which is superposed on the one side and heat-sealed a necessary portion.

  As shown in FIG. 1, there is a fold portion 4 that can be bent by perforation processing or the like at a position passing through the center of the liquid storage container 1, and the liquid is stored around the fold portion 4. The parts are arranged symmetrically, and the film 3 is folded in half from the folding part 4 while keeping the film 3 inward, so that the parts that collect the liquid overlap at the same position.

  The two parts for storing the liquid in the liquid storage container 1 are formed separately so that two different liquids are not mixed when not in use, and the two liquids are easily used in use. It is for mixing and the shape of the part which accommodates two liquids is devised so that the location to open may be close and each liquid may be poured out toward the same object.

  In the container body 2, each of the portions that store the liquid is continuous with the storage portion 5 formed as a sheet recess that bulges to one side by processing such as vacuum forming on a sheet made of synthetic resin. The pouring part 6 is formed. And the extraction | pouring part 6 is provided in the shape tapered toward the opposite side to the continuous part with the accommodating part 5, and it is made into the small concave shape through the flat part 7 used as a diaphragm | throttle at the front end side. There is a planned outlet 8. See FIG. 3 and FIG.

  The container body 2 is integrally provided with a flange 9 around the sheet recess (storage portion and extraction portion), and the container body 2 is covered with the flange 9 by heat-sealing the film 3 over the sheet recess. The inside of the sheet recess between the film 3 is a space for storing liquid.

  By folding the liquid storage container 1 in half from the folding portion 4, the pair of storage portions 5 overlap each other, and the pair of extraction portions 6 overlap each other. Furthermore, the connecting plate 10 is continuous from each of the extraction portions 6, and each connecting plate 10 is continuous at the folding portion 4. The paired connecting plates 10 are guides for overlapping the leading ends of the pouring portions 6 without shifting when folded in half.

  In the portion of the connecting plate 10, the sheet of the container body 2 and the film 3 are not joined. Then, when the liquid storage container 1 is folded in two at the position of the folding portion 4, the connecting plate 10 is overlapped while the film 3 on the connecting plate 10 is pulled out in the direction opposite to the folding direction, and the overlapping connecting plate 10 is attached. By pulling the film 3 while being held, the film of the spout planned portion 8 at the tip of the spout 6 is pulled out, and an open spout is obtained. See Figure 2

  Further, in order to stabilize the folded state folded in half, the locking piece 11 and the locking piece 11 can be inserted into the outer side portion of the flange 9 that is symmetric about the folding portion 4. A slit 12 is provided.

  As shown in FIG. 2, the locking piece 11 is inserted into the slit 12 and locked, so that the stacking of the storage portion 5 with the film 4 on the inside is maintained, and each folds and protrudes outwardly. By holding the two storage portions 5 to be held together and opening the spout 6 and then pushing the storage portion 5 so as to crush, the stored liquid can be discharged from the spout. The exit operation can be easily performed without being aware of the displacement of the two storage portions 5.

(Push-in operation part)
A push operation unit 13 is provided on one surface of each of the storage units 5. The pushing operation unit 13 is a part that can be pushed in to reduce the internal volume in the storage unit 5 in order to send out the stored liquid from the storage unit 5 toward the dispensing unit 6. In the actual operation, after opening the tip of the spout 6 as described above, the holding portion 5 is sandwiched and held together while facing the object with the spout 6 facing downward, and the pushing operation is performed. The contained liquid is poured out from the spout 6 by pushing the portion 13.

  The pushing operation unit 13 has elasticity to restore the original position from the pushed state when the pushing force is released, and the pushing operation unit 13 is repeatedly pushed into the one storage unit 5. The accommodated liquid and the accommodated liquid in the other accommodating part 5 can be dispensed together in small amounts.

  The push-in operation unit 13 is formed by integrally forming a circular operation unit center 14 and an expandable annular body 15 that is positioned around the circular operation unit center 14 and that can be expanded and contracted in a direction along the push-in direction. is there. As shown in FIG. 5, the stretchable annular body 15 has a valley-shaped ring 16 in which the shape in the cross-sectional direction of the sheet is a convex valley shape in the push-in direction, and the shape in the same cross-sectional direction is the push-in direction. The chevron rings 17 that are convex in the opposite direction are arranged concentrically and alternately, and by pushing the push-in operation unit 13, the plurality of valley rings 16 and the plurality of chevron rings 17 are slightly different from each other. By being deformed one by one, the entire push operation unit 13 can be expanded and contracted in the direction along the push direction.

  In the present embodiment, the mountain-shaped ring 17 on the outermost periphery of the telescopic annular body 15 of the push-in operation unit 13 is continuous with the outermost surface (the part farthest from the film in the container thickness direction) in the storage unit 5. ing. Further, the entire expandable annular body 15 has a shape that gradually approaches the film 3 in the centripetal direction, and the center operating portion center 14 is set to a position that is closest to the film 3.

  As described above, the operation unit center 14 is formed so as to be closest to the film 3 in each of the storage units 5, and the operation unit center 14 is formed in a planar shape as shown in the drawing, and is folded in two. In the state where the storage portions 5 are overlapped, the operation portion center 14 is set so as to be closest to each other with the film 3 therebetween.

  Therefore, if the two storage parts 5 overlapped by folding are sandwiched between the fingertips and operated so as to push in both the operation part centers 14, the operation part centers 14 sandwich the film 3 between them. (See FIG. 4), and the pushing amount of the pushing operation unit 13 itself is regulated. Therefore, even if the pushing operation unit 13 is pushed in strongly, the reduction in the volume of the storage unit 5 is small, and the amount of liquid dispensed by one pushing operation is small.

  Each of the angle rings 17 is provided with a groove portion 20 that protrudes in the pushing direction of the pushing operation portion 13 so as to intersect the core 19 of the peak portion 18. In the present embodiment, the groove portions 20 are arranged at four positions so as to be equally spaced in the circumferential direction in each of the angle rings 17 so that the groove portions 20 are aligned in the radial direction in the entire stretchable annular body 15. I have to.

  In this manner, each of the mountain-shaped rings 17 is provided with the groove portion 20 that protrudes in the pushing direction so as to intersect the core 19 of the ridge portion 18. Even if the ring 17 is deformed in a direction in which the circle drawn by the core 19 of the ridge portion 18 is reduced in diameter, the adjacent ridge portions 18 come closer to each other with the groove portion 20 therebetween, leading to inversion of the mountain shape. Stress concentration up to is not generated in the peak 18.

  Therefore, as described above, the development portion that inappropriately maintains the stretched shape of the expandable annular body 15 is not formed, and when the pushing force is released, the entire pushing operation portion 13 returns to the original shape. By repeating the operation, the two liquids are poured out little by little.

  In the present embodiment, the push-in operation unit is provided with a pair of storage units that are separately stored so that the two liquids are not mixed before being used, and the storage unit is overlapped by folding in two. Although the example provided in the liquid storage container was shown, this invention is not limited to this embodiment, It can employ | adopt as a container which has a single storage part.

DESCRIPTION OF SYMBOLS 1 ... Liquid storage container 2 ... Container main body 3 ... Film 4 ... Folding part 5 ... Storage part 6 ... Extraction part 9 ... Flange 13 ... Push-in operation part 14 ... Center of operation part 15 ... Expandable annular body 16 ... Valley-shaped ring 17 ... Yamagata ring 18 ... peak 19 ... street core 20 ... groove

Claims (3)

A push-in operation unit that is provided on one surface of the storage unit in the liquid storage container and is capable of performing a push-out operation for sending out the liquid stored in the storage unit from the storage unit toward the dispensing unit that is continuous with the storage unit. There,
The push-in operation part has a valley-shaped ring whose section is convex in the direction of pushing around the center of the operation part to be pushed inward of the storage part, and a mountain shape whose section is convex in the direction opposite to the push-in direction. It is provided with a stretchable annular body that is alternately arranged concentrically with the angled ring, and can be expanded and contracted in the direction along the pushing direction,
Pushing operation of a liquid storage container, characterized in that grooves are provided in a plurality of locations on each of the chevron rings and projecting in the pushing direction so as to intersect the cores of the peaks of the chevron rings. Part structure. In the liquid storage container, the storage portion and the extraction portion continuous with the storage portion are formed as a sheet recess made of a flexible sheet, and a flange is integrally provided around the sheet recess. It consists of a container body and a film that covers the sheet recess of the container body and is heat-sealed to the flange, and the inside of the sheet recess between the container body and the film is a liquid storage space,
The pushing operation part structure of the liquid storage container according to claim 1, wherein the pushing operation part is provided in a storage part in the container main body.   The liquid storage container has a fold line portion in the center, and two storage portions that are symmetrically arranged around the fold line portion are provided, and each of the pushing operation portions of the two storage portions is a fold line. The push-in operation part structure of the liquid storage container according to claim 1 or 2, wherein the push-in operation part structure of the liquid storage container is disposed so as to overlap when folded from the part.

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