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can lid

A can lid and scoring line technology, which is applied in the field of fully-opening can lids, can solve the problems of irregular cutting of the scoring line, large opening force, etc., achieve good lid opening performance, improve bending rigidity, and good lid opening performance Effect

Active Publication Date: 2022-06-21
DAIWA CAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the opening piece is finally torn off from the remaining loop portion, there is a possibility that a part of the remaining loop portion is bent, the score line is cut irregularly, and even a little bit of the tear-off piece remains on the opening piece or the remaining loop as a protrusion. Therefore, a larger opening force is required in the final stage of pulling the opening piece

Method used

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Experimental program
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Effect test

Embodiment Construction

[0034] The can lid of the present invention is a so-called full opening type can lid. A panel part is provided in the center part of the main body part attached to the can (winding), and the opening piece is divided and formed by a score line so as to occupy most of the panel part. A protruding piece is attached to a part of the peripheral part of this opening piece with a rivet. A finger hook portion is provided on the protruding piece. By pulling up the finger hook portion, an initial break occurs in a part of the score line, and the score line is sheared sequentially from the position where the initial break occurs, and finally the entire score line is sheared along the score line. As a result, the opening tab is removed from the body portion, and the can lid is opened.

[0035] That is, the can lid 1 of the present invention includes the main body portion 2 and the protruding piece 3 . exist figure 1 and figure 2 An example of this is shown in . The main body portio...

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PUM

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Abstract

To provide a can end that is excellent in opening performance even if it is made of steel plate. A score line (13) that divides and forms the opening piece (12) is formed on the peripheral portion of the panel portion (4), and a protruding piece (3) is fixed to a part of the peripheral portion of the opening piece through the mounting portion (9). The sheet (3) has: a finger hook (8) positioned closer to the central portion of the opening sheet (12) than the mounting portion (9); and a nose portion (10) separated from the mounting portion (9) and The finger hook portion (8) is located on the opposite side and is located on the outer peripheral side than the score line (13), and the lower part of the nose portion (10) in the panel portion (4) supports the nose portion (10) from the lower side. ) of the support portion (15), an outer peripheral rib (14) that improves the bending rigidity of the support portion (15) is formed on the outer peripheral portion of the score line (13) in the panel portion (4).

Description

technical field [0001] The present invention relates to a so-called full-open type can lid that is open substantially on its entire surface, and particularly relates to a can lid configured to open by pulling a protruding piece to break the score line. Background technique [0002] The structures of such can lids are described in Patent Documents 1 to 3. Describing the general structure, a substantially circular score line is formed on the inner portion of the tightening portion with respect to the can, that is, the outer peripheral portion of the panel portion. The part divided by this score line becomes an aperture piece. A tab is attached to a part of the outer peripheral side of the opening piece by a rivet. The tab is a portion of the handle that first breaks a part of the score line, and then pulls up the opening piece in order to break the score line. Therefore, the tip portion (tab nose) of the protruding piece extends from the rivet to the outer peripheral edge s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D17/34B65D17/40B65D47/36
CPCB65D17/353B65D17/4011B65D2517/0016B65D2517/007B65D2517/0071B65D17/347B65D17/4012B65D47/36B65D2517/0073
Inventor 大越俊幸小长谷裕和岩丸忠义山本明大岛克实
Owner DAIWA CAN