JPH04106243U - lid with tab - Google Patents

Abstract

(57) [Summary] Lid with tab [Purpose] To prevent the tab on the lid from deforming. [Structure] A reinforcing rib is provided on the tab of the lid.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was developed for lids with tabs for sealing the mouths of resin or glass containers, especially plastic containers. The present invention relates to a lid formed by molding.

0002

[Conventional technology]

Generally, after the lid is formed in the forming section, it is conveyed to the capping section through a chute. The container is then capped at the capping section. While being transported by chute , the tab on the lid may become deformed and the lid may become stuck in the chute. Then, Cappi All packaging lines from the packaging section onwards had to be stopped, resulting in a significant drop in productivity. It will come down.

0003 Conventionally, the following measures have been considered to prevent the tab of the lid from deforming. The first measure is to increase the thickness of the lid and increase the strength of the entire lid, including the tab. be. The second measure is to keep the thickness of the lid the same but change the size of the tab. The goal is to make it smaller.

0004

[Problem that the idea aims to solve]

The first measure described above has a problem in that the cost of the lid increases. second pair However, when opening the package, it was difficult to grasp the tab, making it difficult to open the package.

[0005] In view of the above circumstances, the purpose of this invention was to avoid increases in cost and difficulty in opening the package. The purpose of the present invention is to provide a lid that prevents the tab from deforming easily.

[0006]

[Means to solve the problem]

The lid with a tab according to this invention has a reinforcing rib provided on the tab.

[0007]

[Effect] In the lid with a tab according to this invention, the reinforcing rib is provided on the tab. This increases the rigidity of the tab.

[0008]

【Example】

An embodiment of this invention will now be described with reference to the drawings.

[0009] The lid is stamped and formed from a lidding film made of aluminum foil laminate. That is, the lid main body 11 has a substantially U-shaped vertical section, and the tab protrudes from a part of the outer periphery of the lid main body 11. 12 and more.

0010 The lid body 11 has a flat bottom wall 21 and a downwardly tapered wall rising from the periphery of the bottom wall 21. It consists of a shaped peripheral wall 22 and an outward flange 23 extending from the upper end thereof. bottom wall 21 and the peripheral wall 22 is fitted into the container C, and the flange 23 is received at the upper end of the container C. The container C is sealed by heat-sealing the two. bottom Near the periphery of the wall 21, there are two downward annular protrusions 24 with a U-shaped cross section to prevent wrinkles. 25 are arranged concentrically.

[0011] The tab 12 has a substantially triangular shape in plan view. Tab 12 has parallel reinforcing ribs 31. It is formed in an upwardly protruding shape. The parallel reinforcing ribs 31 bend the tab 12 itself into a corrugated cross-section. It is formed by bending, has an inverted U-shape in cross section, and has a tab 12. Extends outward from the base.

Referring to FIG. 2, the shape of the ribs 31 will be explained using specific numbers as an example. When the outer diameter D of the lid body 11 is approximately 60 mm, the pitch P of the ribs 31 is The thickness t ₀ of the tab 12 excluding the ribs 31 is 0.13 mm, and the thickness t ₁ of the tab 12 including the ribs 31 is 0.35 to 0.40 mm.

[0013] By forming the ribs 31 as described above, the rigidity of the tab 12 is significantly increased. , the rate of increase is 8 to 10 times that when there is no rib 31.

[0014] If instead of forming ribs 31 on tab 12, the thickness of the entire lid could be increased. In order to obtain the same rigidity as described above, the thickness of the lid must be increased by approximately 2 to 2.2 times. There is a point.

[0015] Next, referring to FIG. 4, another embodiment of the lid will be described. The lid extends from a lid main body 41 having a substantially inverted U-shaped vertical section and a part of the outer periphery of the lid main body 41. It consists of tab 42 and more.

[0016] The lid main body 41 has a flat top wall 51 and a peripheral wall 52 that hangs down from the periphery of the top wall 51. Ru. The top wall 51 and the peripheral wall 52 are fitted over the mouth of the container C, and the edge of the top wall 51 is fitted over the mouth of the container C. It is received at the upper end of the board and both are heat-sealed. Near the periphery of the top wall 51, Two annular protrusions 54 and 55 are provided in the same way as the cover.

[0017] Of course, the tab 42 is provided with a rib 61 in the same way as the tab 12 above.

[0018]

[Effect of the idea]

According to this idea, the rigidity of the tab is increased by the reinforcing ribs, which reduces costs. To provide a lid whose tab is not easily deformed without causing any difficulty in opening or unsealing.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a lid.

FIG. 2 is a sectional view of the tab taken along line II-II in FIG. 1;

FIG. 3 is a cross-sectional view of the lid and the mouth of the container to which the lid is attached.

FIG. 4 is a sectional view corresponding to FIG. 3 showing another embodiment.

[Explanation of symbols]

12, 42 tabs 31, 61 ribs

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Takayuki Sugimoto 26-19 Nakano Higashi 7-chome, Aki-ku, Hiroshima City, Ltd. Inside Towa Techno

Claims (1)

[Scope of utility model registration request] 1. A lid with a tab, in which the tabs 12, 42 are provided with reinforcing ribs 31, 61.