JP2021054472A - Measuring cap - Google Patents

Abstract

To provide a measuring cap of which an appearance can be improved and which can increase a measurable amount of content liquid by increasing a volume of a liquid reservoir part.SOLUTION: A cap for measuring includes an injection molded part 18 having a pouring cylinder part 11, and a liquid reservoir bulge part 12 formed by blow molding. The injection molded part 18 includes an annular rib 15, and an annular wall part 16 which extends from an outer peripheral edge part 15a of the annular rib 15 along an axial direction in an opposite direction to the liquid reservoir bulge part 12. A neck part 50 is formed between the annular rib 15 and the liquid reservoir bulge part 12 by bulging the liquid reservoir bulge part 12 in the axial direction and in a radial direction. In the liquid reservoir bulge part 12, an outer peripheral edge part 17a of an annular shoulder part 17 protruding to an outer side in a radial direction with respect to a base end part 11a of the pouring cylinder part 11 is preferably arranged on a tip end part 11b side of a liquid return cylinder part 11 with respect to the outer peripheral edge part 15a of the annular rib 15. Thus, the neck part 50 is covered with the liquid reservoir bulge part 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to a measuring cap.

For containers that contain liquids such as liquid detergents, fabric softeners, bleaches, and pastes, a measuring cap with a function to measure the contents is used as the lid of the container in order to easily measure these contents. Be done. Such a weighing cap is preferably used in combination with a body cap attached to the mouth of the container. The measuring cap is provided with a scale or the like in the liquid reservoir for storing the content liquid, so that the content liquid can be appropriately and easily measured according to the type and amount of the content liquid used.

The applicant has placed the container, for example, inserted inside the main body cap for the purpose of increasing the capacity of the liquid reservoir portion without expanding the diameter of the mouth of the container in the transverse direction and increasing the capacity that can be measured by the measuring cap. We have proposed a measuring cap including a pouring cylinder portion to be formed and a liquid reservoir bulging portion which is connected to the pouring cylinder portion and has an inner diameter larger than the inner diameter of the pouring cylinder portion. In this measuring cap, a liquid reservoir bulging portion can be formed by blow molding (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2004-203467

As described above, when the liquid reservoir bulge is formed by blow molding, the liquid reservoir bulge can be easily formed so as to have a predetermined capacity according to the mold used at the time of molding. However, in general, blow molding is performed by fixing a portion other than the liquid reservoir bulge portion in the preform manufactured by injection molding, so that the manufactured measuring cap has the liquid reservoir bulge portion and injection. At the connection portion with the molded portion, a step is generated due to a constriction or the like, and the step portion may be easily deformed and spoil the appearance. Therefore, there is room for improvement so that the appearance is good.

Therefore, an object of the present invention is to provide a measuring cap capable of increasing the capacity of the liquid reservoir portion, easily increasing the amount of measurable content liquid, and improving the appearance.

The present invention is a measuring cap including an injection-molded portion including an injection-molded portion and a liquid reservoir bulging portion by blow molding, and the injection-molded portion is in the radial direction from the base end portion of the injection-molded portion. An annular rib projecting outward and extending in the circumferential direction of the injection cylinder portion, and extending from the outer peripheral edge portion of the annular rib in the direction opposite to the liquid sump bulging portion in the axial direction, and It has an annular wall portion on the inner peripheral surface in which an engaging portion with another member is formed, and the annular rib and the liquid reservoir bulging portion are continuous with the pouring cylinder portion. The liquid sump bulge has a constricted portion formed by bulging from the annular rib in the axial direction and the radial direction, and the liquid sump bulge is the base end of the pouring cylinder. The outer peripheral edge portion of the annular shoulder portion that projects radially outward from the portion is arranged at the same height position as the outer peripheral edge portion of the annular rib, or on the tip end side of the liquid return cylinder portion. As a result, the above object is achieved by providing a measuring cap in which the constricted portion is covered with the liquid reservoir bulging portion.

According to the measuring cap of the present invention, the capacity of the liquid reservoir portion can be increased to easily increase the amount of the content liquid that can be measured, and the liquid reservoir portion can be made difficult to be deformed to improve the appearance. it can.

FIG. 1 is a cross-sectional view illustrating the configuration of a measuring cap according to a preferred embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a state immediately after blow molding of the measuring cap according to a preferred embodiment of the present invention.

Hereinafter, the present invention will be described based on the preferred embodiment with reference to the drawings. The measuring cap 10 of the present embodiment shown in FIG. 1 is formed of synthetic resin or the like, and is preferably attached to and detached from the main body cap 30 attached to the mouth portion 21 of the container main body 20 that houses the content liquid such as liquid detergent. It is attached and used as possible. When the measuring cap 10 is attached to the main body cap 30, the tip portion 11b of the dispensing cylinder portion 11 used as the spout of the measuring cap 10 is inserted and arranged inside the main body cap 30. The measuring cap 10 has a scale or the like drawn on the outer peripheral surface or the inner peripheral surface as needed, so that an appropriate amount of the content liquid can be measured. In the following description, the vertical direction of the measuring cap 10 will be described based on the state in which the tip portion 11b of the dispensing cylinder portion 11 faces the container body 20 side. That is, when the measuring cap 10 is attached to the main body cap 30, the container main body 20 side is downward, the upper side of the paper surface in FIG. 1 is the "upper side" of the measuring cap 10, and the lower side of the paper surface in the figure is the "measurement cap 10". Downward. " Further, in FIG. 1, the vertical direction and the axial direction of the measuring cap 10 coincide with each other, and the radial direction of the measuring cap 10 coincides with the horizontal direction of the paper surface in FIG.

The measuring cap 10 of the present embodiment is a measuring cap including an injection molding portion 18 including the injection cylinder portion 11 and a liquid reservoir bulging portion 12 by blow molding, and the injection molding portion 18 is An annular rib 15 extending radially outward from the base end portion 11a of the injection cylinder portion 11 and extending in the circumferential direction of the liquid return cylinder portion 11 and a liquid reservoir swelling from the outer peripheral edge portion 15a of the annular rib 15. It has an annular wall portion 16 that extends in the direction opposite to the portion 12 along the axial direction and has an engaging portion 16a formed on the inner peripheral surface with another member. Between the annular rib 15 and the liquid reservoir bulging portion 12, the liquid reservoir bulging portion 12 is formed by bulging from the annular rib 15 in the axial direction and the radial direction in succession with the pouring cylinder portion 11. , Has a constricted portion 50. In the liquid reservoir bulging portion 12, the annular shoulder portion 17 projecting radially outward from the base end portion 11a of the dispensing cylinder portion 11 is preferably on the tip end portion 11b side of the liquid returning cylinder portion 11 toward the radially outward side. The outer peripheral edge portion 17a of the annular shoulder portion 17 is provided at the same height position as the outer peripheral edge portion 15a of the annular rib 15, or the liquid return cylinder portion 11 is provided so as to be inclined at an angle. Since it is arranged on the tip end portion 11b side, the constricted portion 50 is covered with the liquid reservoir bulging portion 12. In the present embodiment, the outer peripheral edge portion 17a of the annular shoulder portion 17 is preferably arranged on the tip end portion 11b side of the liquid return cylinder portion 11 with respect to the outer peripheral edge portion 15a of the annular rib 15.

FIG. 1 shows an example of a mounting form in which the measuring cap 10 and the container main body 20 are mounted, preferably via the main body cap 30. The measuring cap 10 is an integrally molded product including an injection molded portion 18 including a pouring cylinder portion 11 and a liquid reservoir bulging portion 12 formed by blow molding. The liquid reservoir bulging portion 12 is a portion that bulges in the radial direction of the pouring cylinder portion 11 continuously from the base end portion 11a of the pouring cylinder portion 11 via the neck portion 17b in the axial direction of the pouring cylinder portion 11. It has. As a result, the inner diameter of the liquid reservoir bulging portion 12 is larger than the inner diameter of the pouring cylinder portion 11.

In the present embodiment, the main body cap 30 is preferably attached to the mouth portion 21 of the container main body 20, and the measuring cap 10 is attached to the container main body 20 via the main body cap 30. When the measuring cap 10 is attached to the main body cap 30, the tip portion 11b of the dispensing cylinder portion 11 is inserted and arranged inside the main body cap 30. The tip portion 11b of the dispensing cylinder portion 11 is used as a spout for the content liquid measured by the measuring cap 10 when the measuring cap 10 is used. The wall thickness of the dispensing cylinder portion 11 at the tip portion 11b shown in the figure is formed to be thinner than the wall thickness of the dispensing cylinder portion 11 at the proximal end side 11a.

The injection molding portion constituting the measuring cap 10 includes an annular rib 15 projecting outward in the radial direction of the dispensing cylinder portion 11 from the base end portion 11a of the dispensing cylinder portion 11. The annular rib 15 is continuously extended in the circumferential direction of the dispensing cylinder portion 11. The annular rib 15 is formed with an annular wall portion 16 that is continuous with the outer peripheral edge portion 15a and extends from the outer peripheral edge portion 15a in the direction opposite to the side where the liquid reservoir bulging portion 12 exists. The annular wall portion 16 is arranged concentrically with the dispensing cylinder portion 11. A female screw or the like is preferably formed on the inner peripheral surface of the annular wall portion 16 as an engaging portion 16a that engages with another member. In the present embodiment, the engaging portion 16a engages with the engaged portion 22a in the annular engaged wall portion 22 of the main body cap 30 by a method such as screwing or fitting, and the measuring cap 10 is engaged with the main body cap 30. It can be attached to and detached from the container body 20 via the above.

As the main body cap 30, for example, an integrally molded product made of synthetic resin having the same structure as the cap described in Japanese Patent Application Laid-Open No. 2001-139049 can be used. The main body cap 30 includes a pouring nozzle 40 that is inserted and arranged in the pouring cylinder portion 11 when the measuring cap 10 in which the pouring cylinder portion 11 is arranged is attached.

The main body cap 30 includes an annular skirt wall portion 31 that is attached so as to cover the mouth portion 21 of the container main body 20. The skirt wall portion 31 has an engaging uneven portion 32 for engaging with the mouth portion 21 on the inner peripheral surface of the lower end portion thereof, and the engaging uneven portion 32 is provided at the base end of the mouth portion 21 of the container body 20. The main body cap 30 is attached and fixed to the mouth portion 21 of the container main body 20 by engaging with the engaging uneven portion 25 formed on the outer peripheral surface of the portion.

Further, the main body cap 30 has an annular ceiling portion 35 extending continuously in the circumferential direction thereof and a skirt wall portion 31 extending in the axial direction from the outer peripheral edge portion of the ceiling portion 35 toward the container main body 20 side. And an annular engaged wall portion 22 that protrudes from the ceiling portion 35 in the direction opposite to the skirt wall portion 31 and is provided concentrically with the skirt wall portion 31. In the present embodiment, an engaged portion 22a preferably made of a male screw is formed on the outer peripheral surface of the annular engaged wall portion 22, and a measuring cap made of the engaged portion 22a and preferably a female screw is formed. The engaging portion 16a of the annular wall portion 16 of 10 is screwed so that the measuring cap 10 can be attached to the main body cap 30.

At the lower end portion of the annular engaged wall portion 22 of the main body cap 30 on the container main body 20 side, the lower end portion is continuously provided downward along the inner peripheral surface of the mouth portion 21 from the lower end portion. A bowl-shaped saucer portion 37 having a bottom plate 36 that is inclined obliquely and a pouring nozzle 40 that is erected upward from the central portion of the saucer portion 37 are provided. The dispensing nozzle 40 is a portion that plays a role as a guide that enables the container body 20 to be dispensed while controlling the flow direction of the content liquid when the container body 20 is tilted so that it is located below.

The bottom plate 36 is formed with a liquid return opening 38 located at the lowest portion thereof. The inner surface of the saucer portion 37 having the bottom plate 36 forms a liquid recovery surface for collecting excess content liquid inside the container body 20, and when the measuring cap 10 is reattached, weighing is performed. The excess liquid remaining in the cap 10 can be returned to the inside of the container body 20 through the liquid return opening 38.

As described above, the main body cap 30 is provided with a pouring nozzle 40 that stands upward from the central portion of the saucer portion 37. The pouring nozzle 40 communicates with the pouring opening 39 formed in the bottom plate 36 of the pan 37 at its base end, and is the tip of the pouring cylinder 11 used as the spout of the measuring cap 10. The content liquid can be smoothly poured out to the measuring cap 10 through the tip injection port 40a having a cross-sectional shape smaller than that of the portion 11b.

Returning to the description of the measuring cap 10, in the present embodiment, when viewed along the axial direction of the dispensing cylinder portion 11, between the annular rib 15 and the annular shoulder portion 17 of the liquid reservoir bulging portion 12, The constricted portion 50 is formed by the liquid reservoir bulging portion 12 bulging radially outward from the base end portion 11a of the pouring cylinder portion 11. The constricted portion 50 is provided with an annular shoulder portion 17 in which the liquid sump bulge portion 12 is inclined obliquely toward the tip end portion 11b side of the liquid return cylinder portion 11 toward the outer side in the radial direction. It is covered by a bulge 12.

That is, in the present embodiment, the liquid reservoir bulging portion 12 by blow molding is a bottomed cylindrical shape composed of a bottom portion 12b and a peripheral wall portion 12c, which are arranged upside down in a state of being attached to the main body cap 30 shown in FIG. The liquid reservoir main body 12a, the annular shoulder portion 17, and the neck portion 17b that connects the annular shoulder portion 17 with the base end portion 11a of the liquid return cylinder portion 11 are formed. The outer diameter of the peripheral wall portion 12c of the liquid reservoir main body portion 12a is larger than the outer diameter of the liquid return cylinder portion 11, the annular rib 15, and the annular wall portion 16. Further, the neck portion 17b has an inner diameter similar to the inner diameter of the liquid return cylinder portion 11, and projects radially outward from the upper end portion of the neck portion 17b and is an annular shape interposed between the peripheral wall portion 12c of the liquid reservoir main body portion 12a. The shoulder portion 17 is continuously provided. Here, the neck portion 17b can be formed so as to be bent in a dogleg shape on the outer side in the radial direction or the inner side in the radial direction, and the neck portion 17b itself is extended so as to be inclined outward in the radial direction or inward in the radial direction. It can also be formed. As a result, the outer peripheral edge portion 17a of the annular shoulder portion 17 can be easily arranged at the same height position as the outer peripheral edge portion 15a of the annular rib 15, or closer to the tip end portion 11b side of the liquid return cylinder portion 11. The liquid reservoir bulging portion 12 makes it possible to cover the constricted portion 50 more easily.

In the present embodiment, the annular shoulder portion 17 is continuously bent outward from the upper end portion of the neck portion 17b on the side opposite to the tip portion 11b of the dispensing cylinder portion 11, preferably toward the outer side in the radial direction. It is provided in a state of being obliquely inclined toward the tip end portion 11b side of the return cylinder portion 11. Further, the outer peripheral edge portion 17a of the annular shoulder portion 17 is preferably arranged beyond the outer peripheral edge portion 15a of the annular rib 15 and closer to the tip end portion 11b of the liquid return cylinder portion 11 than the outer peripheral edge portion 15a. As a result, the constricted portion 50 between the annular rib 15 and the annular shoulder portion 17 of the liquid sump bulge portion 12 is on the tip end portion 11b side of the liquid return cylinder portion 11 in the peripheral wall portion 12c of the liquid sump bulge portion 12. It is covered from the outside by the lower end, which is a part.

Further, in the present embodiment, the annular shoulder portion 17 of the liquid reservoir bulging portion 12 is preferably provided in contact with the outer peripheral edge portion 15a of the annular rib 15. As a result, the load from above the bottom portion 12b of the inverted liquid reservoir bulging portion 12 can be supported by the main body cap 30 and the container main body 20 via the annular rib 15, so that the measuring cap 10 is attached, for example. When the containers are stacked when they are carried out or stored, the liquid reservoir bulge 12 of the lower container product is deformed by the load from the upper container product. It becomes possible to effectively avoid becoming.

The measuring cap 10 of the present embodiment having the above-described configuration can be formed by using, for example, a synthetic resin having preferably light transmittance such as polypropylene, polyethylene, polyethylene terephthalate, etc. as a raw material thereof. Specifically, first, the molten raw material resin is introduced into a mold for injection molding, and the injection cylinder portion 11, the annular rib 15, the annular wall portion 16, and the blow, which have a shape complementary to the mold, are first introduced. The preliminary bottomed cylinder portion for forming the liquid reservoir bulging portion 12 by molding is integrally molded by injection molding to form a preform. This preform is formed so that the injection cylinder portion 11, the annular rib 15, and the annular wall portion 16 have substantially the same dimensions as the injection-molded portion in the target measuring cap 10.

Next, the portion of the preform including the preliminary bottomed cylinder portion is inserted into a mold for blow molding, and the preliminary bottomed cylinder portion is blow molded, whereby the injection cylinder portion 11, the annular rib 15, and the annular wall portion are formed. The measuring cap 10 formed by integrally forming the 16 and the liquid reservoir bulging portion 12 can be formed. Injection molding and blow molding may be performed separately, or injection blow molding in which blow molding is continuously performed after injection molding may be adopted. When the liquid reservoir bulging portion 12 is blow-molded, the annular rib 15 can be used as a grip portion during blow molding.

When forming the liquid reservoir bulging portion 12 by blow molding, the mold for blow molding is preferably oblique from the portion corresponding to the neck portion 17b toward the outside in the radial direction toward the tip portion 11b side of the portion corresponding to the pouring cylinder portion 11. By providing the inclined portion, the annular shoulder portion 17 which is bent outward in the radial direction from the tip portion of the neck portion 17b and preferably projects obliquely toward the tip portion 11b side of the injection cylinder portion 11. Can be easily molded. Further, the annular shoulder portion 17 of the liquid sump bulge portion 12 is preferably blow-molded to form the liquid sump bulge portion 12 in the form shown in FIG. 2, and then, for example, from the bottom portion 12b side of the liquid sump bulge portion 12. By applying a pressing force or by applying a pressing force from the container body 20 side after attaching the measuring cap 10 to the container body 20, a pressing force P (see FIG. 2) is applied in the axial direction to cause plastic deformation. , The outer peripheral edge portion 17a of the annular shoulder portion 17 may be arranged at the same height position as the outer peripheral edge portion 15a of the annular rib 15, or closer to the tip end portion 11b side of the dispensing cylinder portion 11. ..

According to the measuring cap 10 of the present embodiment having the above-described configuration, the capacity of the liquid reservoir portion can be increased to easily increase the amount of the content liquid that can be measured, and the liquid reservoir portion is deformed. It is possible to make it difficult and improve the appearance.
Wear.

That is, according to the measuring cap 10 of the present embodiment, the liquid reservoir bulging portion 12 by blow molding is provided so as to bulge from the annular rib 15 in the axial direction and the radial direction in succession with the pouring cylinder portion 11. , Without expanding the diameter of the injection cylinder 11 or the mouth 21 of the container body 20 by injection molding, only the liquid reservoir swelling portion 12 is swelled according to the type and amount of the content liquid to be used, and the liquid reservoir portion By increasing the volume of the content liquid, the amount of the content liquid that can be measured by the measuring cap 10 can be easily increased. Further, the constricted portion 50 formed between the annular rib 15 and the liquid reservoir swelling portion 12 by swelling only the liquid reservoir swelling portion 12 continuously with the pouring cylinder portion 11 is a liquid reservoir swelling portion. The annular shoulder portion 17 of the 12 is provided in a state of being obliquely inclined toward the tip end portion 11b side of the pouring cylinder portion 11 toward the outer side in the radial direction, so that the peripheral wall portion 12c of the liquid reservoir bulging portion 12 is provided. By the portion on the tip end portion 11b side of the dispensing cylinder portion 11 in the above, the step portion due to the constricted portion 50 can be made invisible from the outside, and the outer peripheral edge portion 15a of the annular rib 15 can be covered. By bringing the annular shoulder portion 17 into close proximity or contact with the annular shoulder portion 17, it is possible to improve the appearance of the measuring cap 10 by making it difficult to deform at the stepped portion due to the constricted portion 50.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, the measuring cap of the above-described embodiment has been described as being detachably attached to the body cap attached to the mouth portion of the container body, but the measuring cap can be detachably attached to, for example, the mouth portion of the container body. It can also be directly attached and used. In this case, when the measuring cap is attached to the mouth portion, the dispensing tube portion used as the spout of the measuring cap is inserted and arranged inside the mouth portion. Further, the annular shoulder portion provided in a state of being inclined obliquely outward in the radial direction of the liquid reservoir bulge does not necessarily have to be in contact with the outer peripheral edge portion of the annular rib, and is not necessarily in contact with the outer peripheral edge portion of the annular rib. Even when they are provided apart from each other, the appearance can be improved by covering the constricted portion from the outside with the liquid reservoir bulging portion 12. Further, the annular shoulder portion does not necessarily have to be provided in a state of being obliquely inclined toward the tip end side of the dispensing cylinder portion toward the outer side in the radial direction, and may be provided so as to extend in parallel with the annular rib. , May be provided in close contact with the annular rib.

10 Weighing cap 11 Injection cylinder 11a Base end 11b Tip 12 Liquid reservoir bulge 12a Liquid reservoir body 12b Bottom 12c Peripheral wall 15 Circular rib 15a Outer peripheral edge 16 Circular wall 16a Engagement 17 Ring shoulder 17a Outer peripheral edge 18 Injection molding part 20 Container body 21 Mouth part 22 Ring-shaped engaged wall part 22a Engagement part 30 Body cap 40 Injection nozzle 40a Tip injection port 50 Constriction

Claims (4)

A measuring cap including an injection molded part including an injection cylinder part and a liquid reservoir bulging part by blow molding.
The injection-molded portion is formed from an annular rib extending radially outward from the base end portion of the injection cylinder portion and extending in the circumferential direction of the injection cylinder portion, and an annular rib extending from the outer peripheral edge portion of the annular rib. It has an annular wall portion that extends along the axial direction in the direction opposite to the liquid reservoir bulging portion and has an engaging portion formed with other members on the inner peripheral surface.
Between the annular rib and the liquid reservoir bulging portion, the liquid reservoir bulging portion is formed by bulging axially and radially from the annular rib in succession with the pouring cylinder portion. It has a constricted part and
In the liquid reservoir bulging portion, the outer peripheral edge portion of the annular shoulder portion protruding radially outward from the base end portion of the dispensing cylinder portion is at the same height position as the outer peripheral edge portion of the annular rib. A measuring cap in which the constricted portion is covered by the liquid sump bulge portion because the liquid return cylinder portion is arranged closer to the tip end portion side than the liquid return cylinder portion. A claim in which the annular shoulder portion projecting radially outward from the base end portion of the dispensing cylinder portion is provided in a state of being obliquely inclined toward the tip end portion side of the dispensing cylinder portion toward the radial outside. Item 1. The measuring cap according to item 1. The measuring cap according to claim 1, wherein the annular shoulder portion of the liquid reservoir bulging portion is provided in contact with the outer peripheral edge portion of the annular rib. The annular shoulder portion of the liquid reservoir bulging portion is formed by blow molding and then plastically deformed by applying a pressing force in the axial direction to form an outer peripheral edge portion of the annular shoulder portion. The measuring cap according to any one of claims 1 to 3, which is located at the same height position as the outer peripheral edge portion of the annular rib or closer to the tip end portion side of the liquid return cylinder portion.

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