JP2017105498A - Liquid content extraction pump for liquid content storage paper container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid content extraction pump for a liquid content storage paper container, which is capable of satisfying both a reduction in a residual liquid amount and stabbing performance.SOLUTION: A liquid content extraction pump 1 for a liquid content storage paper container that has a hole in an upper surface part and a suction port formed by sealing the hole with a breakable film stabs the suction port with a suction pipe 7, and sucks a liquid content to extract the content to the outside. A suction port 10 opened at the leading end of the suction pipe 7 is formed in a slope 11. The slope 11 is provided with: a first inclined part 11a in which a branch point B is set in the midway of the suction pipe 7 in a diameter direction X with the leading end of the suction port 10 set as a start point A and a portion from the start point A to the branch point B is inclined sharply to the suction port 7 in an axial direction Y; and a second inclined part 11b in which a portion from the branch point B to an end point C that is the tail end of the suction port 10 is inclined sharply to the suction pipe 7 in the axial direction Y.SELECTED DRAWING: Figure 1

Description

  The present invention provides a liquid content-containing paper container having a suction port formed by forming a hole in the upper surface portion and sealing the hole with a breakable film. The present invention relates to a liquid content dispensing pump that sucks contents and dispenses them to the outside.

  2. Description of the Related Art Conventionally, a liquid content storage paper container having a suction port formed by forming a hole in an upper surface portion and sealing the hole with a breakable film. As a liquid content dispensing pump that sucks in and discharges the liquid outside, a cylindrical cylinder part and an operating part of a piston that is slidably fitted into the cylindrical cylinder part are also provided. There is known a discharge nozzle and a suction pipe that is provided at a lower portion of the cylindrical cylinder portion and is inserted into a liquid content-containing paper container by piercing the suction port (see, for example, Patent Document 1). .)

  In this type of liquid content container paper container, which is found in the liquid content dispensing pump described in Patent Document 1, a hole that forms a suction port on the upper surface of the liquid content container paper container is generally sealed. In order to make it easy to pierce the stopped film, the suction port that opens at the tip of the suction pipe is formed on an inclined surface.

Japanese Utility Model Publication No. 7-45088

In the liquid content dispensing pump as described in Patent Document 1, in order to pour so as not to leave the liquid content in the liquid content storage paper container, the length of the suction pipe is set at the tip. The formed suction port is set to a length that approaches or reaches the bottom of the liquid content-containing paper container. However, since the suction port opened at the tip of the suction pipe has an inclined surface, the liquid content in the range of the length of the suction port in the axial direction of the suction pipe cannot be sucked and remains.
Therefore, in order to reduce the residual liquid amount, if the inclined surface forming the suction port is made obtuse with respect to the axial direction of the suction pipe, the length of the suction port in the axial direction of the suction pipe is shortened, and the residual liquid amount is reduced. However, there is a problem that the piercing property to the film sealing the hole forming the suction port is deteriorated.
That is, the liquid content pump as described in Patent Document 1 has a problem that the piercing property is deteriorated when the remaining liquid amount is reduced, and the residual liquid amount is increased when the piercing property is improved. It was.

  An object of the present invention is to provide a liquid content dispensing pump for a liquid content-containing paper container for the purpose of satisfying both the reduction of the residual liquid amount and the piercing property.

  In order to achieve the above object, the invention according to claim 1 is a liquid content storage paper having a suction port formed by forming a hole in an upper surface portion and sealing the hole with a breakable film. In the liquid container dispensing pump that stabs the suction tube into the suction port of the manufactured container and sucks the liquid content to the outside, the suction port that opens at the tip of the suction tube is formed on an inclined surface, The inclined surface of the suction port sets a branch point in the diameter direction of the suction pipe starting from the tip of the suction port, and is inclined at an acute angle with respect to the axial direction of the suction pipe from the start point to the branch point And a second inclined surface portion that is inclined at an obtuse angle with respect to the axial direction of the suction pipe from the branch point to the end point that is the rear end of the suction port.

  The invention according to claim 2 is characterized in that the angle of the first inclined surface portion is 15 ° to 40 ° and the angle of the second inclined surface portion is 45 ° to 85 ° according to claim 1. .

  According to a third aspect of the present invention, the branching point of the first inclined surface portion and the second inclined surface portion according to any one of the first and second aspects is directed from the starting point toward the diameter direction of the suction pipe. The diameter of the suction pipe is set within a range of 20% to 50%.

  According to a fourth aspect of the present invention, the second inclined surface portion according to any one of the first to third aspects is characterized by being curved toward a rear end direction of the suction pipe.

  According to a fifth aspect of the present invention, in the suction pipe according to the fourth aspect, the curved second inclined surface portion of the suction pipe passes through an extended virtual line of the first inclined surface portion and an end point serving as a rear end of the suction port. It is characterized in that it is curved within a range not exceeding a virtual line orthogonal to the axial direction.

  According to a sixth aspect of the present invention, the diameter of the suction pipe according to any one of the first to fifth aspects forms the suction port provided in the upper surface portion of the liquid content storage paper container. It is characterized by being at least 2 mm shorter than the diameter of the hole.

According to the liquid content dispensing pump of the liquid content storage paper container according to claim 1, the suction port that opens at the tip of the suction pipe is formed on an inclined surface, and the inclination of the suction port The surface is set to a branch point in the diameter direction of the suction pipe starting from the tip of the suction port, and the first slope is inclined from the start point to the branch point at an acute angle with respect to the axial direction of the suction pipe. Since it comprises the surface portion and the second inclined surface portion inclined at an obtuse angle with respect to the axial direction of the suction pipe from the branch point to the end point which is the rear end of the suction port, the liquid content-containing paper container When the suction tube is inserted into the suction port, first, the first inclined surface portion inclined at an acute angle of the suction port formed at the inclined surface opened at the tip of the suction tube seals the hole forming the suction port. To stop film Since the second inclined surface portion, which is stabbed into a stab and is inclined at an obtuse angle that is subsequently inserted, is stabbed and ruptured so as to spread the film that has already been ruptured, the suction port is inserted into the suction port with a light force. Can be easily inserted into the liquid content-containing paper container.
In addition, since the second inclined surface portion of the suction port opened at the tip of the suction pipe is inclined at an obtuse angle with respect to the axial direction of the suction pipe, the length of the suction port in the axial direction of the suction pipe is It becomes shorter and the amount of remaining liquid can be reduced.

  According to the liquid content dispensing pump of the liquid content storage paper container according to claim 2, the angle of the first inclined surface portion according to claim 1 is 15 ° to 40 °. The film sealing the hole forming the mouth can be easily broken and pierced, and the angle of the second inclined surface portion is 45 ° to 85 °, so that in the axial direction of the suction pipe The length of the suction port can be shortened, and the amount of residual liquid can be reduced.

  According to the liquid content dispensing pump of the liquid content storage paper container according to claim 3, the first inclined surface portion and the second inclined surface portion according to any one of claim 1 or 2. Since the branch point is set in the range of 20% to 50% of the diameter of the suction pipe from the start point toward the diameter direction of the suction pipe, the branch point of the suction port that opens at the tip of the suction pipe A good piercing property of the film sealing the hole by the first inclined surface portion and an effective reduction of the remaining liquid amount by the second inclined surface portion can be achieved.

  According to the liquid content dispensing pump of the liquid content storage paper container according to claim 4, the second inclined surface portion according to any one of claims 1 to 3 is provided after the suction pipe. Since it curves toward the end direction, the second inclined surface portion inserted subsequent to the first inclined surface portion can be easily broken so as to smoothly spread the already broken film.

  According to the liquid content dispensing pump of the liquid content storage paper container according to claim 5, the second inclined surface portion that is curved according to claim 4 is an extension virtual line of the first inclined surface portion and Since it is curved in a range not exceeding the imaginary line orthogonal to the axial direction of the suction pipe passing through the end point which is the rear end of the suction port, the second inclined surface portion inserted subsequently to the second inclined surface portion is The film that has already been broken can be easily broken by spreading it more smoothly.

According to the liquid content extraction pump of the liquid content storage paper container according to claim 6, the diameter of the suction pipe according to any one of claims 1 to 5 is the liquid content storage. Since it is at least 2 mm shorter than the diameter of the hole forming the suction port provided on the upper surface of the paper container, the suction tube is inserted into the suction port and easily inserted into the liquid content storage paper container. In this case, since there is a distance of at least 1 mm between the suction pipe and the end face of the hole forming the suction port, that is, the paper end face, there is a low possibility that the end face of the paper is exposed, and the liquid contents are The risk of soaking into the paper substrate from the end face is low.
Further, due to the shrinkage of the film stretched when the suction pipe is pierced into the film sealing the hole, good adhesion between the suction pipe and the film is obtained, and the liquid content-containing paper container Leakage of empty liquid contents can be prevented.

It is a front view which shows an example of embodiment of the liquid content extraction pump of the liquid content accommodation paper container which concerns on this invention. It is explanatory drawing of the suction opening opened at the front-end | tip of the suction pipe of the liquid content extraction pump shown in FIG. It is explanatory drawing which shows the other example of the suction opening opened to the front-end | tip of the suction pipe of a liquid content extraction pump. It is a partially longitudinal explanatory view which shows the usage example of the liquid content extraction pump shown in FIG.

Hereinafter, an example of an embodiment of a liquid content dispensing pump for a liquid content storage paper container according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing an example of an embodiment of the liquid content dispensing pump of the liquid content storage paper container of this example, and FIG. 2 is a drawing at the tip of the suction pipe of the liquid content dispensing pump shown in FIG. FIG. 3 is an explanatory diagram showing another example of the suction port opened at the tip of the suction pipe of the liquid content dispensing pump, and FIG. 4 is the use of the liquid content dispensing pump shown in FIG. It is a partially longitudinal explanatory view showing an example.

  The liquid content dispensing pump 1 of this example also serves as a cylindrical cylinder portion 2 and an operation portion of a piston that is provided on the upper portion of the cylindrical cylinder portion 2 and is slidably fitted into the cylindrical cylinder portion 2. The suction nozzle 3 and the suction provided in the lower part of the cylindrical cylinder part 2 and pierced into the suction port 6 provided in the upper surface part 5 of the liquid content storage paper container 4 and inserted into the liquid content storage paper container 4 It consists of a tube 7.

The suction port 6 provided in the upper surface portion 5 of the liquid content storage paper container 4 is formed by sealing the hole 8 formed in the upper surface portion 5 with a breakable film 9.
A suction port 10 opening at the tip of the suction pipe 7 that pierces the suction port 6 formed in this way is formed on the inclined surface 11.

  The inclined surface 11 of the suction port 10 sets a branch point B in the middle of the diameter direction X of the suction pipe 7 with the tip of the suction port 10 as the start point A, and extends from the start point A to the branch point B in the axial direction Y of the suction pipe. A first inclined surface portion 11a inclined at an acute angle, and a second inclined surface portion 11b inclined at an obtuse angle with respect to the axial direction Y of the suction pipe 7 from the branch point B to the end point C as the rear end of the suction port 10; It consists of

  In this example, the angle θ1 of the first inclined surface portion 11a is set to 15 ° to 40 °, and the angle θ2 of the second inclined surface portion 11b is set to 45 ° to 85 °. When the angle θ1 of the first inclined surface portion 11a is 15 to 40 °, the film 9 sealing the hole 8 forming the suction port 6 can be easily broken and pierced.

On the other hand, when the angle θ1 of the first inclined surface portion 11a is less than 15 °, the piercing property to the film 9 is good, but the strength is weak, and when the piercing the film 9, there is a possibility that it may be bent and not pierce. If the angle θ1 of the first inclined surface portion 11a exceeds 40 °, the resistance at the time of piercing the film 9 is large, and a strong force is required for piercing the film 9, so that the piercing cannot be easily performed.

  Further, when the angle θ2 of the second inclined surface portion 11b is 45 ° to 85 °, the length of the suction port 10 in the axial direction Y of the suction pipe 7 can be shortened, and the remaining liquid amount is reduced accordingly. Can do. On the other hand, if the angle θ2 of the second inclined surface portion 11b is less than 45 °, the length of the suction port 10 in the axial direction Y of the suction pipe 7 becomes longer, and the remaining liquid amount cannot be reduced accordingly. . Further, when the angle θ2 of the second inclined surface portion 11b exceeds 85 °, the length of the suction port 10 in the axial direction Y of the suction pipe 7 is further shortened, and the remaining liquid amount can be reduced accordingly. The resistance at the time of piercing the film 9 is increased, and a strong force is required for piercing the film 9, so that the film 9 cannot be pierced easily.

  Further, in this example, the branch point B of the first inclined surface portion 11 a and the second inclined surface portion 11 b is in the range of 20% to 50% of the diameter of the suction pipe 7 from the starting point A toward the diameter direction X of the suction pipe 7. It is set to become. When the branch point B of the first inclined surface portion 11a and the second inclined surface portion 11b is in the range of 20% to 50% of the diameter of the suction pipe 7 from the starting point A toward the diameter direction X of the suction pipe 7, A good piercing property of the film 9 by the inclined surface portion 11a can be obtained, and an effective reduction of the remaining liquid amount by the second inclined surface portion 11b can be achieved.

  On the other hand, when the branch point B between the first inclined surface portion 11a and the second inclined surface portion 11b is less than 20% of the diameter of the suction pipe 7 from the starting point A toward the diameter direction X of the suction pipe 7, the first inclined surface portion 11a. The distance in the diameter direction X is short, and the film 9 breaks due to the first inclined surface portion 11a being pierced into the film 9, and the second inclined surface portion 11b is pierced into the film 9 from this state. The puncture resistance is increased, and a strong force is required to pierce the film 9, so that the piercing cannot be easily performed.

  Further, when the branch point B of the first inclined surface portion 11a and the second inclined surface portion 11b exceeds 50% of the diameter of the suction pipe 7 from the starting point A toward the diameter direction X of the suction pipe 7, the second inclined surface portion 11b The distance in the diameter direction X is short, and the length of the suction port 10 in the axial direction Y of the suction pipe 7 becomes long, so that the remaining liquid amount cannot be reduced by that amount.

Further, in this example, the first inclined surface portion 11a and the second inclined surface portion 11b constituting the inclined surface 11 that forms the suction port 10 opening at the tip of the suction pipe 7 are both formed in a straight line. As illustrated in FIG. 3 as another example of the suction port 10 opened at the tip of the suction pipe 7, the second inclined surface portion 11 b may be curved toward the rear end of the suction pipe 7.
The curved second inclined surface portion 11b does not exceed an imaginary line L2 orthogonal to the axial direction Y of the suction pipe 7 passing through the extended virtual line L1 of the first inclined surface portion 11a and the end point C that is the rear end of the suction port 10. It is preferably curved.

  Further, the diameter of the suction pipe 7 is set to be at least 2 mm shorter than the diameter of the hole 8 forming the suction port 6 provided in the upper surface portion 5 of the liquid content storage paper container 4. Yes. If the diameter of the suction pipe 7 is shorter than the diameter of the hole 8 by 2 mm or more, the suction pipe 7 and the suction opening 6 are formed when the suction pipe 7 is pierced into the suction opening 6 and easily inserted into the liquid content storage paper container 4. Since there is a distance of at least 1 mm between the end face of the hole 8 to be cut, that is, the paper end face, there is a low possibility that the paper end face will be exposed, and there is a low possibility that the liquid contents will permeate into the paper substrate from the paper end face.

  Further, the length of the suction pipe 7 is such that when inserted into the liquid content storage paper container 4, the tip of the suction port 10 is close to the bottom 12 of the liquid content storage paper container 4, or It is the length to reach.

Further, in the liquid content container paper container 4 shown in this example, it is formed of a paper container material having a thermoplastic resin layer on at least the inner surface of the paper base material, and as described above, the upper surface portion 5 thereof. Has a suction port 6. In the suction port 6, a hole 8 that becomes the suction port 6 is formed in the upper surface portion 5, and the hole 8 is sealed with a breakable film 9. In this example, the film 9 that seals the hole 8 is provided on both the front and back surfaces of the upper surface portion 5. However, the present invention is not limited to this. .
By doing so, when the suction pipe 7 is inserted into the suction port 6 of the liquid content storage paper container 4, the end face of the paper is less likely to be exposed to the liquid surface side, so that the liquid content is removed from the paper surface to the paper base. Low risk of soaking into the material.

As the film 9, a known film such as polyethylene, polypropylene, polyester, cellophane or the like can be used, but is not particularly limited. If the film 9 is a thermoplastic resin, the holes 8 formed in the upper surface portion 7 can be easily closed by heat sealing.
Moreover, you may laminate | stack aluminum foil, paper, etc. on the film for the purpose of improving breakability, light shielding properties, oxygen barrier properties, and the like.

  Moreover, the shape of the bottom part 12 of the liquid content storage paper container 4 of this example is formed in a reverse gable roof shape. In this example, the bottom part 12 of the reverse gable roof shape forms the top of the gable top. Formed with.

FIG. 4 shows a usage example of the liquid content dispensing pump of this example.
In the use example of this example shown in FIG. 4, an outer container 13 for storing the liquid content storage paper container 4 and a lid 14 for closing the opening of the outer container 13 are prepared. The lid 14 is provided. More specifically, the cylindrical cylinder portion 2 of the liquid content dispensing pump 1 is fixed through the lid body 14, the dispensing nozzle 3 is disposed on the upper side of the lid body 14, and the lower side of the lid body 14. A suction pipe 7 is arranged.

  And when the opening part of the outer container 13 is closed with the cover body 14, the suction pipe 7 arrange | positioned under the cover body 14 of the liquid content accommodation paper container 4 accommodated in the outer container 13 of It is inserted into the liquid content storage paper container 4 by being pierced into the suction port 6 of the upper surface portion 5.

According to the liquid content dispensing pump 1 of the liquid content storage paper container 4 configured as described above, the inclined surface 11 of the suction port 10 has a diameter of the suction pipe 7 starting from the tip of the suction port 10 as a starting point A. A branch point B is set in the middle of the direction X, the first inclined surface portion 11a is inclined from the start point A to the branch point B at an acute angle with respect to the axial direction Y of the suction pipe, and the rear end of the suction port 10 from the branch point B And the second inclined surface portion 11b inclined at an obtuse angle with respect to the axial direction Y of the suction pipe 7 until the end point C becomes, so that the suction pipe 7 is connected to the suction port 6 of the liquid content storage paper container 4 When piercing, first, the first inclined surface portion 11a inclined at an acute angle of the suction port 10 formed in the inclined surface 11 opened at the tip of the suction pipe 7 seals the hole 8 forming the suction port 6. Pierce film 9 and break, then insert Since the second inclined surface portion 11b inclined at an obtuse angle is pierced and ruptured so as to spread the already broken film 9, the suction pipe 7 is pierced into the suction port 6 with a light force and made of liquid content-containing paper. It can be easily inserted into the container 4.
Further, since the second inclined surface portion 11b of the suction port 10 opening at the tip of the suction tube 7 is inclined at an obtuse angle with respect to the axial direction Y of the suction tube 7, the length of the suction port 10 in the axial direction of the suction tube 7 Becomes shorter and the amount of the remaining liquid can be reduced.

  In this example, since the angle θ1 of the first inclined surface portion 11a is set to 15 to 40 °, the film 9 sealing the hole 8 forming the suction port 6 can be easily broken and pierced. Moreover, since the angle θ2 of the second inclined surface portion 11b is set to 45 to 85 °, the length of the suction port 10 in the axial direction Y of the suction pipe 7 can be shortened, and the remaining liquid amount can be reduced accordingly. Can be reduced.

  Further, in this example, the branch point B of the first inclined surface portion 11 a and the second inclined surface portion 11 b is in the range of 20% to 50% of the diameter of the suction pipe 7 from the starting point A toward the diameter direction X of the suction pipe 7. Therefore, the good piercing property of the film 9 by the first inclined surface part 11a and the effective reduction of the remaining liquid amount by the second inclined surface part 11b can be achieved.

DESCRIPTION OF SYMBOLS 1 Liquid content pouring pump 2 Cylindrical cylinder part 3 Pouring nozzle 4 Liquid content accommodation paper container 5 Upper surface part 6 Suction port 7 Suction pipe 8 Hole 9 Film 10 Suction port 11 Inclined surface 11a 1st inclined surface part 11b 1st 2 Inclined surface portion 12 Bottom portion 13 Outer container 14 Lid A Start point B Branch point C End point X Suction tube diameter direction Y Suction tube axial direction θ1 First inclined surface portion angle θ2 Second inclined surface portion angle L1 First inclined surface portion Extension imaginary line L2 An imaginary line perpendicular to the axial direction of the suction pipe passing through the end point which is the rear end of the suction port

Claims (6)

A liquid content containing paper container having a suction port formed by forming a hole in the upper surface portion and sealing the hole with a breakable film, and sucking the liquid content by piercing the suction tube into the suction port. In the liquid content dispensing pump that dispenses to the outside,
The suction port that opens at the tip of the suction tube is formed in an inclined surface, and the inclined surface of the suction port sets a branch point in the middle of the suction tube in the diameter direction, starting from the tip of the suction port. A first inclined surface portion that is inclined at an acute angle with respect to the axial direction of the suction pipe from the start point to the branch point, and an axial direction of the suction pipe from the branch point to the end point that is the rear end of the suction port. A liquid content dispensing pump for a liquid content-containing paper container, comprising a second inclined surface portion inclined at an obtuse angle.   2. The liquid content for a liquid content-containing paper container according to claim 1, wherein an angle of the first inclined surface portion is 15 to 40 ° and an angle of the second inclined surface portion is 45 to 85 °. Pouring pump.   The branch point of the first inclined surface portion and the second inclined surface portion is set within a range of 20% to 50% of the diameter of the suction pipe from the starting point toward the diameter direction of the suction pipe. The liquid content extraction pump for a liquid content-containing paper container according to any one of claims 1 and 2.   4. The liquid content for a liquid content-containing paper container according to claim 1, wherein the second inclined surface portion is curved toward a rear end direction of the suction pipe. 5. Material pump.   The second inclined surface portion that curves is curved within a range not exceeding an imaginary line orthogonal to the axial direction of the suction pipe that passes through the extended virtual line of the first inclined surface portion and the end point that is the rear end of the suction port. The liquid content dispensing pump for a liquid content-containing paper container according to claim 4. 6. The diameter of the suction pipe is at least 2 mm or less shorter than the diameter of the hole forming the suction port provided in the upper surface portion of the liquid content storage paper container. A liquid content dispensing pump for the liquid content containing paper container according to claim 1.

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