JP2021054471A - Measuring cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring cap capable of increasing the capacity of a liquid reservoir portion, easily increasing the amount of content liquid that can be measured by a measuring cap, and improving the appearance. A measuring cap (10) of the present invention includes an injection-molded portion including an injection cylinder portion (11) and a liquid reservoir / bulging portion (12) by blow molding. The injection molding portion 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 injection cylinder portion 11, and a liquid reservoir from the outer peripheral edge of the rib. It has an annular wall portion 16 that extends in the direction opposite to the bulging portion 12 along the axial direction and has an engaging portion 16a formed on the inner peripheral surface with another member. A constriction formed between the annular rib 15 and the liquid sump bulge portion 12 by bulging the liquid sump bulge portion 12 in the axial and radial directions from the base end portion 11a of the pouring cylinder portion 11. It has a part 50. A step eliminating portion 60 arranged in the circumferential direction is provided along the opening peripheral surface portion 50a of the constricted portion 50. [Selection diagram] Fig. 3

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.

Applicants are inserted and placed inside the main body cap for the purpose of increasing the capacity of the liquid reservoir 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 having a liquid return cylinder portion and a liquid reservoir bulge portion which is connected to the liquid return cylinder portion and has an inner diameter larger than the inner diameter of the liquid return 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. Since a step is generated due to a constriction or the like at the connection portion with the molded portion, 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 the content liquid that can be measured by the measuring cap, and improving the appearance. With the goal.

The present invention is a measuring cap including an injection molded portion including an injection cylinder portion and a liquid reservoir bulging portion by blow molding.
The injection-molded portion has 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 the liquid from the outer peripheral edge of the annular rib. It has an annular wall portion that extends in the direction opposite to the reservoir bulge portion in the axial direction and has an engagement portion formed with other members on the inner peripheral surface.
A constriction formed between the annular rib and the liquid sump bulge portion by bulging the liquid sump bulge portion in the axial and radial directions from the base end portion of the pouring cylinder portion. Has a part
Provided is a measuring cap provided with a step eliminating portion arranged in the circumferential direction along the opening peripheral surface portion of the constricted portion.

According to 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 by the measuring cap, and the appearance of the measuring cap can be improved.

FIG. 1 is a schematic view showing an embodiment of a measuring cap of the present invention. FIG. 2 is a schematic view showing another embodiment of the measuring cap of the present invention. FIG. 3 is a schematic view showing still another embodiment of the measuring cap 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 embodiment shown in FIGS. 1 to 3 is formed of a synthetic resin or the like, and is preferably attached to a main body cap 30 attached to the mouth portion 21 of the container main body 20 for accommodating a content liquid such as a liquid detergent. It is used by being detachably attached. 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 FIGS. 1 to 3 is the "upper side" of the measuring cap 10, and the lower side of the paper surface in the figure is the measuring cap. It is "downward" in 10. Further, in FIGS. 1 to 3, 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 FIGS. 1 to 3.

FIG. 1 shows an example of a mounting form of the measuring cap 10 and the container body 20. The measuring cap 10 is an integrally molded product including an injection molded portion including the injection cylinder portion 11 and a liquid reservoir bulging portion 12 formed by blow molding. The liquid reservoir bulging portion 12 is provided so as to be connected in the axial direction of the dispensing cylinder portion 11 from the base end portion 11a of the dispensing cylinder portion 11 and to bulge in the radial direction of the dispensing cylinder portion 11. In the embodiment shown in the figure, the inner diameter of the liquid reservoir bulging portion 12 is larger than the inner diameter of the pouring cylinder portion 11.

In the embodiment shown in FIG. 1, 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 base end portion 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 and extends from the outer peripheral edge in the direction opposite to the side where the liquid reservoir bulging portion 12 exists and in the axial direction. The annular wall portion 16 is arranged concentrically with the dispensing cylinder portion 11. The annular wall portion 16 is preferably formed so that its outer peripheral surface is present on a virtual extension surface of the outer peripheral surface of the liquid reservoir bulging portion 12. 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 formed on the container body 20 side by a method such as screwing or fitting, and the measuring cap is used. The 10 can be detachably attached to the container body 20.

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 dispensing nozzle 40 that is inserted and arranged in the dispensing cylinder portion 11 when the measuring cap 10 in which the dispensing cylinder portion 11 is inserted and arranged inside the main body cap 30 is attached.

The main body cap 30 shown in FIG. 1 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 shown in the figure has an annular ceiling portion 35 extending continuously in the radial direction thereof and a skirt extending in the axial direction from the outer peripheral edge of the ceiling portion 35 toward the container main body 20 side. The wall portion 31 and the 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 are formed. 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 the engaged portion 22a is preferably engaged with a female screw. The measuring cap 10 can be attached to the main body cap 30 by screwing the portion 16a.

At the lower end of the annular engaged wall portion 22, a bowl-shaped saucer having a bottom plate 36 that is slanted and is continuously provided downward along the inner peripheral surface of the mouth portion 21 from the lower end portion. A portion 37 and a pouring nozzle 40 provided so as to project upward from the central portion of the saucer portion 37 are provided. The dispensing nozzle 40 is a member that serves 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. When the measuring cap 10 is reattached, the excess liquid remaining in the measuring 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 provided so as to project 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 saucer 37 at its base end, and has a cross-sectional shape larger than that of the tip 11b used as the spout of the measuring cap 10. The content liquid can be smoothly poured out to the injection target such as the measuring cap 10 through the reduced tip injection port 40a.

Returning to the description of the measuring cap 10, when the dispensing cylinder portion 11 is viewed along its axial direction, the liquid reservoir bulging portion 12 is dispensed between the annular rib 15 and the liquid reservoir bulging portion 12. A constricted portion 50 formed by bulging in the radial direction from the base end portion 11a of the tubular portion 11 is formed. The outer diameter of the constricted portion 50 is smaller than the outer diameter of the annular rib 15 and the outer diameter of the liquid reservoir bulging portion 12. The outer peripheral surface of the constricted portion 50 is an open peripheral surface portion 50a that is continuously formed in the circumferential direction and is open outward.

One of the features of the measuring cap 10 of the present invention is that a step eliminating portion 60 arranged in the circumferential direction along the opening peripheral surface portion 50a of the constricted portion 50 is provided. By providing the step eliminating portion 60, it is possible to eliminate the step of the measuring cap caused by the constricted portion 50 and improve the appearance of the measuring cap. In addition to this, by providing the liquid sump bulge portion 12, the capacity of the liquid sump bulge portion 12 can be increased to form a measuring cap capable of measuring a larger amount of the content liquid.

In the embodiment shown in FIG. 1, the step eliminating portion 60 is in the form of a ring-shaped member 61 including a strip-shaped portion. The ring-shaped member 61 is made of a member different from the measuring cap 10, and is detachably attached along the opening peripheral surface portion 50a so as to cover and fit the constricted portion 50. As shown in FIG. 1, it is preferable that the outer peripheral surface of the ring-shaped member 61 is present on the virtual extension surface of each outer peripheral surface of the liquid reservoir bulging portion 12 and the annular wall portion 16. By having such a configuration, it is possible to eliminate the step of the measuring cap 10 caused by the constricted portion 50 and smooth the entire outer circumference of the measuring cap 10, further improving the appearance of the measuring cap 10. Can be made to. In particular, according to a preferred embodiment of the ring-shaped member 61, when the outer peripheral surfaces of the liquid reservoir bulging portion 12, the annular wall portion 16 and the ring-shaped member 61 are viewed along the axial direction, they are visually recognizable to the naked eye. Since the step is eliminated, the entire outer circumference of the measuring cap 10 can be smoothed, and the appearance of the measuring cap can be further improved. If necessary, a scale, a pattern, or the like can be drawn on the outer peripheral surface of the strip-shaped portion.

In the embodiment shown in FIG. 2, the step eliminating portion 60 is in the form of the neck ring portion 63. The neck ring portion 63 is a member integrally molded with the measuring cap 10, and is preferably provided so as to extend outward from a portion of the constricted portion 50 close to the annular rib 15 toward the opening peripheral surface portion 50a. .. The neck ring portion 63 is preferably used as a grip portion during blow molding. Even with such a configuration, by arranging the outer peripheral end surface of the neck ring portion 63 along the opening peripheral surface portion 50a, the step of the measuring cap 10 caused by the constricted portion 50 is eliminated, and the appearance of the measuring cap 10 is eliminated. Can be further improved. In addition to this, when using the measuring cap 10, it becomes easier for the user to grip the measuring cap. Further, when an external force from the liquid reservoir bulging portion 12 to the tip portion 11b is applied to the measuring cap 10, it is possible to reduce unintentional crushing of the liquid reservoir bulging portion 12 in the measuring cap 10.

In the embodiment shown in FIG. 3, the step eliminating portion 60 is an embodiment of the annular covering wall portion 67 formed on the mouth portion 21 or the main body cap 30. As shown in the figure, the annular covering wall portion 67 is preferably formed integrally with the main body cap 30. The annular covering wall portion 67 is arranged concentrically outward in the radial direction of the annular engaged wall portion 22, and is arranged from the outer peripheral edge of the ceiling portion 35 of the main body cap 30 in the axial direction of the main body cap 30 and the skirt wall. The portion 31 is extended in the direction opposite to the extending direction. The annular covering wall portion 67 is preferably formed with a length that covers a part or the whole of the constricted portion 50 when the measuring cap 10 is attached. With such a configuration, when the measuring cap 10 is attached to the mouth portion 21 or the main body cap 30, the step of the measuring cap 10 generated by the constricted portion 50 is covered so as not to be visible from the outside. , The appearance of the container body 20 including the measuring cap 10 can be further improved.

In particular, it is preferable that the annular covering wall portion 67 is formed so that the tip portion 68 of the annular covering wall portion 67 and the liquid reservoir bulging portion 12 are in contact with each other when the measuring cap 10 is attached. With such a configuration, the entire step of the measuring cap 10 generated by the constricted portion 50 can be covered, and the appearance of the container body 20 including the measuring cap 10 can be further improved. In addition to this, the measuring cap 10 can be supported by the container body 20 via the annular covering wall portion 67 to disperse the external force applied to the measuring cap 10, so that the measuring cap 10 may be unintentionally deformed due to the external force. Damage can be prevented.

The measuring cap 10 in each of the above-described embodiments is formed by using a synthetic resin having preferably light transmittance such as polypropylene, polyethylene, or polyethylene terephthalate 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 obtain 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. A measuring cap 10 formed by integrally forming the 16 and the liquid reservoir bulging portion 12 can be formed. When the neck ring portion 63 is provided as the step eliminating portion 60, it has a shape complementary to the neck ring portion 63 in addition to the injection cylinder portion 11, the annular rib 15, the annular wall portion 16 and the spare bottomed cylinder portion. Injection molding may be performed using a mold for injection molding. 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 may be used as a grip portion during blow molding, and the neck ring portion 63 used as the step eliminating portion 60 may be used as a grip portion during blow molding. You may use it. In particular, when the neck ring portion 63 is used as a grip portion during blow molding, blow molding can be performed without directly gripping the annular rib 15, so that the annular rib 15 is unintentionally displaced during blow molding. There is an advantage that the measuring cap 10 with high dimensional accuracy can be formed.

When the main body cap 30 is attached to the mouth portion 21, the main body cap 30 is melted by using an injection molding mold having a portion complementary to the annular covering wall portion 67, if necessary. The raw material resin can be introduced into a mold for injection molding and formed by injection molding. Similarly, when the ring-shaped member 61 including the strip-shaped portion is attached to the constricted portion 50, the molten raw material resin is introduced into a mold for injection molding having a shape complementary to the target shape. A ring-shaped member 61 can be formed by injection molding, and then the formed ring-shaped member 61 can be attached to the constricted portion 50.

Although the present invention has been described above based on the preferred embodiment, the present invention is not limited to the above embodiment. For example, the measuring cap 10 in each of the above-described embodiments has been described as a mode in which the measuring cap 10 is detachably attached to the main body cap 30 attached to the mouth portion 21 of the container main body 20, but the measuring cap 10 is not limited to these forms. The cap 10 can also be detachably and directly attached directly to the mouth portion 21 of the container body 20 for use. In this case, when the measuring cap 10 is attached to the mouth portion 21, 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 mouth portion 21.

10 Weighing cap 11 Dispensing cylinder 12 Liquid reservoir swelling 15 Circular rib 16 Circular wall 20 Container body 21 Mouth 22 Ring Engagement wall 22a Engagement 30 Body cap 40 Pouring nozzle 40a Tip pouring outlet 50 Constriction 50a Opening peripheral surface 60 Step elimination part

Claims (6)

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 has 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 the liquid from the outer peripheral edge of the annular rib. It has an annular wall portion that extends in the direction opposite to the reservoir bulge portion in the axial direction and has an engagement portion formed with other members on the inner peripheral surface.
A constriction formed between the annular rib and the liquid sump bulge portion by bulging the liquid sump bulge portion in the axial and radial directions from the base end portion of the pouring cylinder portion. Has a part
A measuring cap provided with a step eliminating portion arranged in the circumferential direction along the opening peripheral surface portion of the constricted portion. The outer peripheral surface of the annular wall portion is formed so as to exist on the virtual extension surface of the outer peripheral surface of the liquid reservoir bulging portion, and on the virtual extension surface of the outer peripheral surface of the liquid reservoir bulging portion. The measuring cap according to claim 1, which is provided so that the outer peripheral surface of the step eliminating portion exists. The measuring cap according to claim 1 or 2, wherein the step-eliminating portion comprises a ring-shaped member including a strip-shaped portion that is detachably attached along the opening peripheral surface portion of the constricted portion. The weighing according to claim 1 or 2, wherein the step eliminating portion comprises a neck ring portion provided so as to extend outward from a portion of the constricted portion close to the annular rib toward the opening peripheral surface portion. cap. It is designed to be detachably attached to the mouth of the container body or the body cap attached to the mouth, and when it is attached to the mouth or the body cap, the tip of the dispensing tube is attached. Is inserted and placed inside the mouth or the main body cap.
The engaging portion formed on the inner peripheral surface of the annular wall portion is adapted to engage with the mouth portion or the annular engaged wall portion of the main body cap.
The step-eliminating portion is concentrically arranged on the outer side of the annular engaged wall portion, and the annular portion extends in the axial direction of the mouth portion or the main body cap from the outer peripheral edge of the nose portion or the main body cap. The measuring cap according to claim 1, which comprises a covering wall portion. The measuring cap according to claim 5, wherein the annular covering wall portion is formed so that the tip end portion of the annular covering wall portion and the liquid reservoir bulging portion come into contact with each other when the measuring cap is attached.

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