JP4870194B2 - Plastic container lid - Google Patents

Description

  The present invention relates to a synthetic resin container lid to be attached to a container mouth, and more specifically, so-called fractional collection that can easily separate a lid and a container after consuming the contents of the container. The present invention relates to a synthetic resin container lid.

  Conventionally, it consists of an inner lid that fits into the mouth of the container and an upper lid that is attached to the inner lid, and the container mouth is firmly fitted in the space between the inner cylinder and the outer cylinder provided on the inner lid. In addition, a container lid made of synthetic resin that seals the inside of the container is used for various liquid seasoning containers. In recent years, from the viewpoint of environmental protection and resource saving, it has been desired to separate garbage discharged at home, and the container lid is also required to be separated from the container after the consumer consumes the contents.

  However, this type of container lid is usually not easily removable because the inner lid is firmly fitted to the container mouth by a stoppering method. For this reason, for example, as disclosed in Patent Document 1, a weakened portion (line) is formed in the circumferential direction at the lower end of the side wall of the inner lid, and a grip piece (tab) is extended to the base end portion of the weakened portion. A lid is used. In this type of container lid, the consumer picks the gripping piece with the fingertip and pulls it in the circumferential direction, thereby tearing the lower end side wall of the inner lid at the weakened portion, weakening the fitting force of the lid to the container and removing the lid. Is what you do.

  However, in the conventional container lid described in Patent Document 1, when tearing the inner lid from the weakening line, a strong tensile force is required when picking and pulling the gripping piece formed of a thin plate in the initial stage of tearing. Therefore, this separation work is difficult for the elderly and children. In addition, with wet hands, there is a problem that it is more difficult to remove the inner lid by a pulling operation because the finger gripping the grip piece slides.

  In order to avoid the problems in the container lid shown in Patent Document 1, as shown in Patent Document 2, an auxiliary puller capable of inserting a fingertip into the weakened line forming portion of the outer cylinder base end portion of the inner lid Or a second horizontal plate that can be pulled out to the weakened line forming portion and pulling out the horizontal plate for collection as shown in Patent Document 3, A device has been developed in which a finger is placed on a finger to perform a pulling operation.

JP 2001-146250 A JP 2001-106246 A JP 2001-048214 A

  However, those shown in Patent Document 2 and Patent Document 3 are provided with a handle (grip piece) that largely protrudes from the inner lid outer cylindrical surface, so that the distribution process of the container, particularly during display at the storefront. For example, the weakened portion may be broken by mischief.

  As described above, the present invention solves the problems associated with the removal of the synthetic resin container lid and the problems in the distribution process, and the lid is removed from the container by easily and reliably pulling the gripping piece. It is an object of the present invention to provide a synthetic resin container lid that can be easily removed and can prevent mischief in the distribution process.

According to the present invention, a synthetic resin container lid that is plugged into a mouth portion of a container, the container lid sealingly seals a container mouth portion constituted by an inner cylinder, an outer cylinder, and an upper wall. A lid and an upper lid attached to the inner lid, and a long hole penetrating the projecting frame portion vertically is formed in a part of the projecting frame portion formed at the lower end of the outer cylinder of the inner lid. And at the boundary between the lower end of the outer cylinder and at least the upper end of the projecting frame portion in which a long hole is formed, a breakable circumferential weakening is extended so that the projecting frame portion is close to the end of the long hole. A synthetic resin container lid provided with a longitudinally weakened portion connected to the circumferentially weakened portion in the vicinity of the lower end from the upper end to the lower end of the synthetic resin container lid. A synthetic resin container lid is provided in which the long hole is concealed by the upper lid in contact with the upper end surface of the portion .

In the present invention, the longitudinally weakened portion is a V-shaped thin portion.

According to the present invention, when removing the lid from the container mouth portion, the protruding frame portion can be securely and firmly gripped by inserting a finger into the elongated hole formed in the protruding frame portion of the inner lid. . For this reason, the weakened portion can be easily split.
In addition, since the long hole formed in the projecting frame portion is concealed by the upper lid, tearing of the weakened portion due to unexpected mischief can be completely prevented during store display.

It is a partial cross section front view of the inner lid of the container lid of this invention. It is a partial sectional view of the state where the upper lid of the container lid of the present invention was attached to the inner lid. It is a bottom view of the inner lid shown in FIG. FIG. 2 is a partially enlarged view of the inner lid shown in FIG. 1. It is a figure which shows the other state of FIG. 4a, and is a perspective view which shows the state at the time of separate collection | recovery.

Embodiments of the present invention will be described based on examples with reference to the drawings.
FIG. 1 is a half sectional front view of the inner lid of the container lid of the present invention, and FIG. 2 is a half sectional front view of the inner lid with the upper lid attached.
FIG. 3 is a bottom view of the inner lid shown in FIG. 4a and 4b are explanatory enlarged views of the vicinity of the protruding frame portion 6 in which the long hole 8 of the inner lid shown in FIG. 1 is formed.

  As shown in FIGS. 1 and 2, the container lid 100 includes an inner lid 4 and an upper lid 5 as main constituent members. The inner lid 4 includes an inner cylinder 1, an outer cylinder 2, and an upper wall 3, and a mouth portion of a container (not shown) is fitted and mounted in the space between the inner cylinder 1 and the outer cylinder 2 by a stopper mounting machine. On the upper side of the upper wall 3, a dispensing cylinder 11 serving as a content dispensing path is provided. In addition, a screw cylinder 12 is formed on an outer circumference circle that separates the space of the extraction cylinder 11. The upper lid 5 attached to the inner lid 4 is formed on the outer ring 2 outer surface of the outer lid 2 of the inner lid 4 and the tamper-evidence band 19 connected via the inner ring 18 and the bridge 17 in close contact with the inner surface of the dispensing cylinder 11. And the locked protrusion 10 that is locked to the locking protrusion 16.

  As another embodiment, the container lid 100 according to the present invention may not include the tamper evident band 19, the locking protrusion 16, the locked protrusion 10, and the locking protrusion 16 formed on the inner lid 4. However, in this case, as described later, the upper lid 5 needs to be in a form of concealing at least the long hole 8 of the projecting frame portion 6.

  At the lower end of the outer cylinder 2, a protruding frame part 6 is formed with a larger diameter than the outer cylinder 2. Preferably, it is desirable that the outer peripheral surface of the projecting frame portion 6 and the outer peripheral surface of the lower end (tamper evident band 19) of the upper lid 5 are substantially flush with each other. An arcuate elongated hole 8 into which the finger can be inserted is formed in the protruding frame portion 6 in the vertical direction, and the protruding frame portion 6 can be easily grasped by inserting the finger 20 into this portion. It has become.

  The description will be continued with reference to FIGS. 3, 4 a, and 4 b. At the boundary between the lower end of the outer cylinder 2 and the protruding frame portion 6, starting from the end of the protruding frame portion 6 in which the long hole 8 is formed. Breakable weakened portions 7 are formed in the circumferential direction. The weakened portion 7 is preferably formed over a range of 90 to 270 degrees.

  Further, at the starting point (that is, the base end portion of the circumferential weakening portion 7), a longitudinal weakening portion is formed that extends from the upper end of the protruding frame portion 6 to the vicinity of the lower end. The longitudinally weakened portion is preferably a V-shaped thin portion 13, and the protruding frame portion 6 in which the long hole 8 is formed is partitioned by the weakened portion 7 and the thin portion 13. As shown in FIG. 4a, a connecting portion 9 is formed below the thin portion 13 so that the thin portion 13 is not broken when the stopper is attached.

Next, a usage pattern of the container lid 100 configured as described above will be described.
After filling the container (not shown) with the liquid seasoning, the container lid 100 is fitted and attached to the mouth of the container using a stopper mounting machine (not shown) to obtain the final product. At this time, since the protruding frame portion 6 in which the thin portion 13 is formed is reinforced by the connecting portion 9, it is possible to effectively prevent the thin portion 13 from being broken by a strong impact by the stopper.

  At the product distribution stage, especially at the storefront, the long hole 8 and the circumferentially weakened portion 7 are completely concealed by the upper lid 5, so there is no risk of unauthorized breakage of the weakened portion due to mischief. Moreover, dust does not collect in the long hole 8.

  When the contents are used, the upper lid 5 is removed, the pull ring 15 is picked by the finger 20, and is pulled upward obliquely to separate and remove the planned opening portion 14, and the contents are poured out. When the upper lid 5 is opened for the first time, the locked protrusion 10 formed on the inner surface of the tamper evidence band 19 and the locking protrusion 16 formed on the outer surface of the outer cylinder 2 of the inner lid 4 are locked in the opening direction. When a rotational force of a certain level or more is applied, the bridge 17 is broken and the lid is opened, so that it can be visually confirmed that the lid is opened.

Next, a method for separating the container after the contents are consumed and the lid will be described.
As shown in FIG. 4 b, when the finger 20 is inserted into the long hole 8 formed in the projecting frame portion 6 and pulled forward, the thin portion 13 and the connecting portion 9 formed in the vicinity of the long hole 8 are broken, The weakening part 7 extended in the circumferential direction is torn off, and the tightening force on the container mouth part 10 by the outer cylinder 2 and the protruding frame part 6 is released. When the broken piece of the projecting frame 8 is pulled upward in this state, the inner lid 4 is easily separated from the container.

DESCRIPTION OF SYMBOLS 1 Inner cylinder 2 Outer cylinder 3 Upper wall 4 Middle lid 5 Upper lid 6 Projection frame part 7 Weakening part 8 Long hole 9 Connection part 10 Locking protrusion 11 Extraction cylinder 12 Screw 13 Vertically weakened part (thin part)
14 Planned opening

Claims (2)

A synthetic resin container lid that is plugged into the mouth of the container,
The container lid is composed of an inner lid that seals a container mouth constituted by an inner cylinder, an outer cylinder, and an upper wall, and an upper lid that is attached to the inner lid.
A long hole penetrating the projecting frame portion vertically is formed in a part of the projecting frame portion formed at the lower end of the outer cylinder of the inner lid,
At the boundary between the lower end of the outer cylinder and at least the upper end of the projecting frame part having a long hole, a circumferential weakened part that can be broken is extended,
In a synthetic resin container lid provided with a longitudinally weakened part connected to the circumferentially weakened part in the vicinity of the lower end from the upper end of the protruding frame part adjacent to the end of the elongated hole ,
The synthetic resin container lid , wherein the upper lid has a lower end surface that comes into contact with an upper end surface of the protruding frame portion when mounted on the inner lid, and the long hole is concealed by the upper lid. The synthetic resin container lid according to claim 1 , wherein the longitudinally weakened portion is a V-shaped thin portion.

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