JP6584169B2 - Weighing cap - Google Patents

Description

  The present invention relates to a measuring cap for measuring a liquid content in a container body.

  A conventional measuring cap is detachably attached to a spout of a container main body that contains a content liquid, and is formed by integrally molding a synthetic resin material such as polypropylene by an injection molding method (for example, a patent). Reference 1).

JP 2006-168751 A

  However, in the above conventional measuring cap, in order to increase the volume of the measuring cap, it is necessary to increase the diameter and height of the measuring cap, but it is necessary to maintain the rigidity of the measuring cap itself. There is a problem that the amount of the synthetic resin to be increased increases and it is difficult to reduce the manufacturing cost.

  In addition, when the volume of the measuring cap is increased, there is a problem that the content liquid is easily poured out from the measuring cap because the diameter of the tube portion of the measuring cap becomes large. In this case, for example, it may be possible to reduce the diameter by attaching another member that gradually reduces the diameter of the spout side to the tube portion of the measuring cap. It becomes difficult to reduce.

  In order to solve the problems in the present invention and the above-described prior art, it is an object to create a measuring cap capable of suppressing an increase in the amount of resin used and further suppressing an increase in manufacturing cost.

Of the means for solving the above problems, the main configuration of the present invention is as follows.
It is a synthetic resin measuring cap that is detachably attached to a spout of a container main body that contains the content liquid or a nozzle main body provided at the spout,
A bottomed cylindrical body part that allows the position of the liquid level of the content liquid to be visually recognized from the outside, a mouth tube part in which a screw part is engraved on the side surface of the tip part of the body part, and a height in the body part And using a blow molding method having a graduation portion composed of lateral ribs provided integrally with a predetermined interval in the direction ,
A small-diameter small tube portion is formed in the mouth tube portion, and an inversion portion is provided between the mouth tube portion and the small tube portion so that the small tube portion is reversely deformed so that the small tube portion can be pushed into the mouth tube portion. It is said that it is characterized by.

  In the main configuration of the present invention, the measuring cap is formed by using the blow molding method, so that the measuring cap is thinned and used even when the volume is increased by increasing the diameter or height. Reduction of the resin amount can be achieved.

Moreover , even if the volume of the measuring cap is increased, it is possible to reduce the diameter of the tube portion of the measuring cap without using a separate member.

  According to another configuration of the present invention, in any one of the configurations described above, a screw portion is engraved on the outer peripheral surface of the mouth tube portion, and an upper end side outer cylinder portion and an upper inner cylinder portion provided on the nozzle body side are provided. By inserting the mouth tube portion and the inverted portion after reverse deformation together, and screwing the screw portion carved in the mouth tube portion and the screw portion carved in the upper end side outer cylinder portion between It is added to the configuration that it is attached to the spout of the container body.

  In the above configuration, the attachment of the measuring cap to the nozzle body can be achieved easily and reliably. Moreover, it has a high sealing property and can be effective for preventing liquid leakage.

  In addition, another configuration of the present invention is a configuration in which the blow molding method is an extrusion blow molding method added to any of the above configurations.

  With the above configuration, it can be achieved that the measuring cap is manufactured easily and at low cost.

  In another configuration of the present invention, a configuration in which a window portion made of transparent or semi-transparent is formed at least partially on any of the above configurations.

  In the said structure, it can achieve confirming the position of the liquid level of a content liquid by visual observation.

Since the present invention has the above-described configuration, the following effects can be obtained.
By blow molding, it is possible to reduce the thickness even if the volume of the measuring cap is increased by increasing the diameter dimension or height dimension, so that the increase in the amount of resin used can be suppressed. it can. Furthermore, the rigidity of the measuring cap can be maintained.

  In addition, by forming the small tube part integrally with the tube part of the measuring cap, it is possible to reduce the diameter of the measuring cap whose volume has been increased, and to stabilize the pouring of the content liquid from the measuring cap. Can do. Moreover, since it is possible to reduce the size without using a separate member, it is possible to achieve a reduction in manufacturing cost by reducing the number of parts.

It is a half sectional view of a measuring cap showing an example of the present invention. It is a half sectional view showing the state where the measuring cap of the example was partially inverted. It is sectional drawing which shows the state which mounted | wore the container main body with the measuring cap of an Example . A is a half sectional view of a measuring cap showing an example of a configuration having a window portion, and B is a sectional view taken along line bb of A. It is a half sectional view of a measuring cap showing a reference example . It is sectional drawing which shows the state which mounted | wore the container main body with the measurement cap of a reference example .

Embodiments of the present invention will be described below with reference to the drawings.
Figure 1 is a half cross-sectional view of the metering cap illustrating an embodiment of the present invention, FIG 2 is a half sectional view showing a state in which the metering cap partially reverses the embodiment, FIG. 3 is a container body weighing cap of Example 4A is a half sectional view of a measuring cap showing an example of a configuration having a window portion, and FIG. 4B is a sectional view taken along line bb in FIG. 4A.

  First, the configuration of the measuring cap 10 will be described. A measuring cap 10 shown in FIGS. 1 and 3 has a function of measuring a content liquid such as a detergent, and also functions as a cap that is attached to the spout 2 of the container body 1 that stores the content liquid and prevents liquid leakage. It also has.

  The measuring cap 10 is made of a transparent or semi-transparent synthetic resin material, and has a mouth tube portion 12 in which a screw portion 12a is threaded on an outer peripheral surface (tip side surface), and a diameter-expanding shape downward from the mouth tube portion 12. The shoulder part 13 is formed, the body part 14 connected in a cylindrical shape to the lower end of the shoulder part 13, and the bottom part 15 forming the bottom wall of the body part 14. Further, a thin tube-shaped reversing portion 16 is continuously provided at the upper end of the mouth tube portion 12, and further, a small-mouthed tube portion formed on the upper end of the reversing portion 16 so as to be reduced in diameter toward the upper tip. 17 is continuously provided.

  The reversing unit 16 is provided at the boundary between the first folded portion 16 a provided at the boundary between the upper end of the reversing unit 16 and the base end of the small tube portion 17, and the upper end of the tubular portion 12 and the lower end of the reversing portion 16. The second folded portion 16b is formed so that it can be folded back. In the state after molding shown in FIG. 1, the first folded portion 16 a and the second folded portion 16 b are not folded together, and the small-mouthed cylinder portion 17 projects upward at the upper position of the mouth-tube portion 12. Is in a state.

  When the upper end of the small tube portion 17 is pushed downward from this state, as shown in FIG. 2, the reversing portion 16 is reversed and deformed by folding the first folded portion 16 a and the second folded portion 16 b inside. The base end of the small tube portion 17 is set to be buried in the small tube portion 12.

  In the reverse deformation state shown in FIG. 2, the reverse portion 16 and the mouth tube portion 12 folded inward are set close to each other in the radial direction, and at the same time, the reverse portion 16 and the small mouth tube portion folded inward. A gap S is formed in an annular shape with respect to 17.

Such a measuring cap 10 is made by heating and melting a synthetic resin material such as PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), and extruding it into a tube, sandwiching it with a mold, and blowing air into the inside. It can form by EBM shaping | molding (Extraction Blow Molding / extrusion blow molding method) which shape | molds a hollow article. At this time, a scale portion 18 for measurement composed of a plurality of (two in FIG. 1 and FIG. 2) horizontal ribs arranged at a predetermined interval in the height direction is formed on the body portion 14 .

  By using the blow molding method, it is possible to achieve thinning and maintain rigidity even when the diameter and height of the measuring cap 10 are increased to increase the volume. Therefore, an increase in the amount of resin for manufacturing the measuring cap 10 can be suppressed, and further the manufacturing cost can be reduced.

Next, a method for using the measuring cap will be described.
The measuring cap 10 is used by being attached to a container body 1 as shown in FIG.
Although a detailed description of the container body 1 is omitted, a spout 2 is provided on the top of the container body 1, and a nozzle body 20 made of a separate member is attached to the spout 2.

  The nozzle body 20 is a member having a double wall structure in which an inner cylinder portion 21 and an outer cylinder portion 22 are arranged concentrically. The outer cylinder part 22 is provided with an engaging part 23 for fixing to the spout 2 of the container body 1 at the lower end side outer cylinder part 22A, and the measuring cap 10 is provided on the inner peripheral surface of the upper end side outer cylinder part 22B. A screw portion 22a that is screwed with the screw portion 12a is formed.

  An upper inner cylinder portion 25 extends from the upper end of the inner cylinder portion 21. An inclined bottom portion 26 having an inclined surface is formed at the lower end of the inner cylinder portion 21, and a nozzle 27 is erected on the inclined bottom portion 26. Inside the nozzle 27, a nozzle hole 26a penetrating the inclined bottom portion 26 is formed. A slit 27 a is formed in a part of the side wall forming the nozzle 27 along the vertical direction, and a return hole 26 b for returning the liquid is formed at the lower end of the inclined bottom portion 26. The return hole 26b is continuous with the nozzle hole 26a.

  The measuring cap 10 is attached in an inverted state with the base end of the small-mouthed cylinder portion 17 being inverted in which the proximal end of the small-mouthed cylinder portion 17 is buried in the mouth cylindrical portion 12. More specifically, the reversing portion 16 and the mouth tube portion 12 after reversal deformation overlapping in the radial direction are inserted together between the upper end side outer cylinder portion 22B and the upper inner cylinder portion 25 on the nozzle body 20 side. The screw portion 22a on the nozzle body 20 side is attached to the screw portion 12a of the measuring cap 10 by screwing. The measuring cap 10 and the nozzle body 20 are inserted between the upper end side outer cylinder portion 22B and the upper inner cylinder portion 25 in a state where the reversal portion 16 and the mouth tube portion 12 after the reverse deformation are overlapped in the radial direction. Therefore, it is possible to effectively prevent liquid leakage.

  In this state, the nozzle 27 is inserted into the body portion 14 through the small tube portion 17. When dispensing, the measuring cap 10 is unscrewed from the nozzle body 20 to bring it into an upright state, and then the liquid content in the container body 1 is transferred from the nozzle 27 of the nozzle body 20 via the small tube portion 17. To pour out.

  Even if the volume of the measuring cap 10 is increased, since the small cap cylinder portion 17 is provided on the upper portion of the measuring cap 10, the pouring of the content liquid from the measuring cap 10 is stabilized. be able to. In addition, since the small tube portion 17 is integrally formed on the upper portion of the measuring cap 10, the number of parts is not increased, and the manufacturing cost can be reduced also in this respect.

  Here, in order to measure the content liquid in the measuring cap 10, a plurality of scale parts 18 provided around the body part 14 can be used. In particular, since the measuring cap 10 is formed of a transparent or translucent synthetic resin material, the position of the liquid surface of the content liquid can be aligned with the scale portion 18 by visual recognition, and the content liquid can be measured more accurately. Can do.

  Furthermore, the measuring cap 10 may be configured to be formed at least partially transparent or translucent. For example, in the configuration shown in FIGS. 4A and 4B, a part of the measuring cap 10 formed of an opaque resin is made of transparent or translucent and has a certain width dimension and has a belt-like window along the longitudinal axis. 19 is formed, and the position of the liquid surface of the content liquid can be visually confirmed from the outside as such a measuring cap 10. In the measuring cap 10 shown in FIGS. 4A and 4B, the content liquid can be more accurately measured by forming the scale portion 18 including a plurality of horizontal ribs and horizontal lines on the body portion 14. Of course.

FIG. 5 is a half sectional view of a measuring cap showing a reference example, and FIG. 6 is a sectional view showing a state in which the measuring cap of the reference example is mounted on a container body.
The measuring cap 10 of the reference example is greatly different from the measuring cap shown in the above embodiment in the configuration of the mouthpiece portion 12. Below, it demonstrates centering on a different point from the measuring cap of an Example . The same members will be described with the same reference numerals.

The mouth tube portion 12 of the measuring cap 10 shown in the reference example is concentrically disposed outside the inner mouth tube portion 12A and a cylindrical inner mouth tube portion 12A having a certain diameter from the upper end of the shoulder portion 13. The outer mouth tube portion 12B is provided. A threaded portion 12a is engraved on the inner peripheral surface (front end side surface) of the outer mouth tube portion 12B, and a concentric seal portion 12C is formed between the inner mouth tube portion 12A and the outer mouth tube portion 12B. Is formed.
The other configurations of the shoulder portion 13, the trunk portion 14, the bottom portion 15, the scale portion 18 and the like are the same as those in the above embodiment .

The measuring cap 10 shown in the reference example is formed by an injection molding method in which a synthetic resin material (PET, PE, PP, etc.) is first heated and dissolved and injected and filled in a mold that is closed in advance. The preform P having the mouth tube portion 12B, the seal portion 12C and the screw portion 12a is formed, and then only the body wall portion of the preform P obtained by the injection molding method is heated, and the inside of the blow die is inside. It can be formed using an injection blow molding method in which a hollow article is formed by blowing high-pressure air.

Also in the reference example , by using the blow molding method, it is possible to achieve thinning and maintain rigidity even when the diameter and height of the measuring cap 10 are increased to increase the volume. It becomes. Therefore, an increase in the amount of resin for manufacturing the measuring cap 10 can be prevented, and the manufacturing cost can be reduced.
As in the embodiment, the entire measuring cap 10 can be formed of a transparent or translucent resin, or a part of the measuring cap 10 can have a window as in FIGS. 4A and 4B. .

A measuring cap 10 shown in the reference example is used by being attached to a container body 1 to which a nozzle body 20 as shown in FIG. 6 is attached.
The nozzle body 20 in this case is different from the nozzle body 20 of the above embodiment in that the screw portion 22a is formed on the outer peripheral surface of the upper end side outer cylinder portion 22B and does not have the upper inner cylinder portion 25. However, the other basic configuration is the same as that of the nozzle body 20 of the above embodiment .

  The measuring cap 10 needs to be attached to the nozzle body 20 attached to the spout 2 on the container body 1 side in an inverted state. At this time, the upper end side outer cylinder part 22B on the nozzle body 20 side is inserted between the outer port cylinder part 12B on the measurement cap 10 side and the seal part 12C, and the screw part 12a on the measurement cap 10 side is inserted into the nozzle. It is possible to attach the measuring cap 10 to the spout 2 (nozzle body 20) of the container body 1 by screwing the threaded portion 22a on the body 20 side.

As mentioned above, although the structure of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example.
For example, in the above-described embodiment, the case where the measuring cap 10 is attached to the nozzle body 20 attached to the spout 2 of the container body 1 has been described. However, the present invention is not limited to the above-described embodiment. It can also be set as the structure which can be directly attached to the spout 2 of the main body 1.

  The present invention can be used in a wider area in the field of measuring caps.

1: Container body 2: Spout 10: Measuring cap 12: Mouth tube portion 12A: Inner mouth tube portion 12B: Outer mouth tube portion 12C: Seal portion 12a: Screw portion 13: Shoulder portion 14: Body portion 15: Bottom portion 16: Inversion part 16a: 1st folding | returning part 16b: 2nd folding | turning part 17: Small-mouthed cylinder part 18: Scale part 19: Window part 20: Nozzle main body 21: Inner cylinder part 22: Outer cylinder part 22A: Lower end side outer cylinder part 22B: Upper end side outer cylinder part 22a: Screw part 23: Engagement part 25: Upper inner cylinder part 26: Inclined bottom part 26a: Nozzle hole 26b: Return hole 27: Nozzle 27a: Slit P: Preform

Claims (4)

A synthetic resin measuring cap that is detachably attached to the spout (2) of the container body (1) that contains the content liquid or the nozzle body (20) provided at the spout (2),
A bottomed cylindrical body (14) formed so that the position of the liquid level of the content liquid can be visually recognized from the outside, and a mouth provided with a screw part (12a) on the side surface of the front end of the body (14) A blow molding method is used, which has a cylindrical portion (12) and a scale portion (18) formed of a lateral rib integrally provided with a predetermined interval in the height direction in the barrel portion (14). Formed ,
The small tube portion (17) having a reduced diameter is formed in the tube portion (12), and the small tube portion (17) is provided between the small tube portion (12) and the small tube portion (17). A synthetic resin measuring cap, characterized in that a reversing portion (16) for reversing deformation so as to be pushed into the mouth tube portion (12) is provided . A screw part (12a) is engraved on the outer peripheral surface of the mouth tube part (12), and between the upper end side outer cylinder part (22B) provided on the nozzle body (20) side and the upper inner cylinder part (25). The mouth tube portion (12) and the inverted portion (16) after reverse deformation are inserted together, and the screw portion (12a) engraved in the mouth tube portion (12) and the upper end side outer tube portion The synthetic resin measuring cap according to claim 1 , wherein the measuring portion is made to be attached to the spout (2) of the container body (1) by screwing the screw portion (22a) engraved in (22B). The synthetic resin measuring cap according to claim 1 or 2 , wherein the blow molding method is an extrusion blow molding method. The synthetic resin measuring cap according to any one of claims 1 to 3, wherein a window (19) made of transparent or translucent is formed at least in part.