TWM497633U - Elastic lining structure of metal cover - Google Patents

Description

Metal cover elastic inner pad structure

This creation relates to the metal cover of a plastic container or a glass container, and more specifically to the elastic inner pad structure of the metal cover.

The metal cover of the plastic container or the glass container is covered with a layer of elastic inner pad. The meaning of the inner pad of the layer is to increase the sealing property of the metal cover and the mouth of the container, prevent the contents from leaking, and prevent the external dirt from penetrating into the container. In the past, the inner pad was made of PVC material [polyvinyl chloride (PVC)], hereinafter referred to as PVC inner pad.

When the PVC inner pad is in contact with the food in the container, the phthalate plasticizer is dissolved, and medical research has confirmed that it has a significant adverse effect on the human body. The metal cover is discarded and recycled to the process of melting and processing in the electric arc furnace steelmaking plant. The PVC inner mat will produce dioxin toxin, which is extremely harmful to the human body and the environment.

In view of the above problems, the metal cover should be removed from the PVC inner film.

The problem to be solved by this creation is that the metal cover is excluded from the use of a PVC inner pad.

The metal cover elastic inner pad structure for solving the above problem is characterized in that: the inner cover of the metal cover has an elastic inner pad attached to the circumferential inner surface of the metal cover, and the bottom surface of the elastic inner pad Having a ring groove, the material of the elastic inner pad is a thermoplastic elastomer (Thermo Plastic Elastomer, referred to as TPE).

The selected thermoplastic elastomer types include: styrenic elastomer (TPS), polyolefin elastomer (Olefinic, TPO for short), polyurethane (Urethane, TPU for short), poly Ester elastomer (Ester, TPEE for short), Arnide (TPAE), and Thermoplastic Vulcanizate (TPV).

Further, the elastic inner pad has a thickness of 0.9 to 1.4 mm.

Further, the metal cover comprises a claw cover and a pull ring cover.

The effect of this creation is: The elastic inner pad has good ductility and rebound strength. The elastic inner pad increases the sealing property of the metal cover and the container mouth, prevents the contents from oozing, and also prevents the external dirt from penetrating into the container.

The elastic inner pad is made of a material that is environmentally friendly and harmless to human health.

The elastic inner pad can withstand the high temperature and high pressure sterilization process without deterioration and release of no poison. Sterilization conditions are up to 121~125°C, 60 minutes and external pressure 2.1bar.

The elastic inner pad can be in contact with various food contents, contains high fat content, no deterioration, and no toxic release. The metal cover having the elastic inner pad can be applied to container sealing of various foods.

10‧‧‧Metal cover

11‧‧‧ top inside

13‧‧‧Circular groove

20‧‧‧Flexible inner cushion

201‧‧‧ Inner Ring

202‧‧‧ outer ring

22‧‧‧ Ring groove

221‧‧‧ inner border

222‧‧‧ outer border

P1‧‧‧Part 1

P2‧‧‧ Part II

31‧‧‧ claw cover

32‧‧‧ Pull ring cover

33‧‧‧Cap

34‧‧‧ skirt

35‧‧‧ Pull ring

40‧‧‧ glass container mouth

41‧‧‧ horizontal base

The first figure is a sectional view of the combination of the creative metal claw cover and the elastic inner cushion.

The second figure is a sectional view of the combination of the creative metal claw cover and the elastic inner cushion.

The third figure is a combined sectional view of the first embodiment of the creative metal pull ring cover and the elastic inner pad.

The fourth figure is a sectional view of the combination of the second embodiment of the metal pull ring cover and the elastic inner pad.

In order to facilitate the description of the central idea of the present invention in the column of the above novel content, it is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above. In the following description, like elements are denoted by the same reference numerals.

As shown in the first figure, the inner cover of a metal cover 10 has an elastic inner pad 20 which is a conventional type of claw cover which is mainly attached to the circumferential portion of the top inner surface 11 of the metal cover 10. The bottom surface of the elastic inner pad 20 has a ring groove 22. The material of the elastic inner pad 20 is a thermoplastic elastomer (Thermo Plastic Elastomer, TPE for short). The selected thermoplastic elastomer comprises a styrene-based elastomer (styrene) (TPS), a polyolefin-based elastomer (Olefinic, abbreviated as TPO), a polyurethane-based elastomer (Urethane, abbreviated as TPU), and a polyester system. Elastomer (Ester, TPEE for short), Arnide (TPAE), and Thermoplastic Vulcanizate (TPV). The elastic inner pad 20 has a thickness of 0.9 to 1.4 mm. The elastic inner pad 20 is defined as a first portion P1 from the inner rim 201 to the inner boundary 221 of the annular groove 22. The outer rim 222 of the elastic inner pad 20 from the outer rim 202 to the annular groove 22 is defined as a second portion P2. In this illustration, the first portion P1 and the second portion P2 each have a structural thickness, and the structural thickness of the second portion P2 is greater than the structural thickness of the first portion P1. The metal cover 10 is coupled to a glass container port 40, the elastic inner pad 20 is opposite to the horizontal base portion 41 of the glass container port 40, and the horizontal base portion 41 is located in the annular groove 22 of the elastic inner pad 20, the ring groove 22 The top of the trough is in close contact with the horizontal base 41 to prevent leakage of the contents of the container and to prevent external contamination from penetrating into the container.

The metal cover described in the second figure is a conventional other type of claw cover 31. The top surface 11 of the claw cover 31 is circumferentially provided with an upwardly rising circumferential groove 13 to which the elastic inner pad 20 is attached. At the groove 13. The claw cover 31 is coupled to a glass container port 40, the elastic inner pad 20 is opposite to the horizontal base portion 41 of the glass container port 40, and the horizontal base portion 41 is located in the annular groove 22 of the elastic inner pad 20, the ring groove 22 The top of the trough is in close contact with the horizontal base 41 to prevent leakage of the contents of the container and to prevent external contamination from penetrating into the container.

As shown in the third figure, the metal cover described is a conventional pull ring cover 32 having a cover top 33 and a skirt portion 34 attached to the periphery of the cover top 33. The skirt portion 34 is provided with a pull ring 35. The elastic inner pad 20 is attached to a circumferential portion of the top inner surface 11 of the lid top 33. The second portion P2 of the elastic inner pad 20 extends and adheres to the top inner surface 11 of the pull ring cover 32 and the inner corner of the skirt portion 34. As shown in the fourth figure, the second portion P2 of the elastic inner pad 20 extends downwardly and adheres to the upper portion of the inner side surface of the skirt portion 34 in addition to being attached to the inner boundary corner.

The pull ring cover 32 is coupled to a glass container port 40, the elastic inner pad 20 is opposite to the horizontal base portion 41 of the glass container port 40, and the horizontal base portion 41 is located in the annular groove 22 of the elastic inner pad 20, the ring groove The top of the trough 22 is in close contact with the horizontal base 41 to prevent leakage of the contents of the container and to prevent external contamination from penetrating into the container. The pull ring 35 is subjected to a pulling force upward and toward the top of the cover. The pull ring 35 is firstly disengaged from the skirt portion 34, so that the skirt portion 34 forms a break without being in close contact with the container opening 40. Then, The tab 35 tears a portion of the cap 33 from the skirt 34 so that the entire tab cover 32, together with the resilient inner pad 20 therein, is disengaged from the container opening 40.

The material of the elastic inner pad 20 is a thermoplastic elastomer, which has good ductility and rebound hardness. The elastic inner pad 20 increases the sealing property of the metal cover and the container opening 40 to prevent the contents from leaking. Avoid infiltration of external dirt into the container. The material selected for the elastic inner pad 20 It is expected to be environmentally friendly and harmless to human health. The elastic inner pad 20 can withstand high temperature and high pressure sterilization process, no deterioration, no toxic release, sterilization operation conditions are up to 121~125 ° C, 60 minutes, external pressure 2.1 bar, the elastic inner pad 20 can be combined with various food contents The material contact, containing high oil content, no deterioration, no toxic release, so the metal cover with the elastic inner pad 20 can be applied to container sealing of various foods.

10‧‧‧Metal cover

11‧‧‧ top inside

20‧‧‧Flexible inner cushion

201‧‧‧ Inner Ring

202‧‧‧ outer ring

22‧‧‧ Ring groove

221‧‧‧ inner border

222‧‧‧ outer border

P1‧‧‧Part 1

P2‧‧‧ Part II

40‧‧‧ glass container mouth

41‧‧‧ horizontal base

Claims (5)

A metal cover elastic inner pad structure, the metal cover has a cover top and a skirt portion vertically connected to the top edge of the cover, the elastic inner pad is a ring structure, and the elastic inner pad is attached to the top inner surface of the cover top a circumferential portion, wherein the bottom surface of the elastic inner pad is provided with a ring groove, and the inner boundary of the ring groove is a first portion between the inner ring edges of the ring structure, and the ring groove is outside the boundary to the ring Between the outer edges of the structure is a second portion, the first portion and the second portion each having a structural thickness; the elastic inner pad is made of a thermoplastic elastomer; the metal cover is combined with a container opening, the elastic inner The pad is in a horizontal base relative to the mouth of the container, and the horizontal base is located in the ring groove, the groove top of the ring groove being in intimate contact with the horizontal base. The metal cover elastic inner pad structure according to claim 1, wherein the thermoplastic elastomer is selected from the group consisting of a styrene elastomer (TPS), a polyolefin elastomer (TPO), and a polyurethane system. Elastomer (TPU), polyester elastomer (TPEE), polyamine-based elastomer (TPAE), dynamic vulcanized elastomer (TPV). The metal cover elastic inner pad structure according to claim 1, wherein the elastic inner pad has a structural thickness of 0.9 to 1.4 mm. The metal cover elastic inner pad structure according to claim 1, wherein the second portion has a structural thickness greater than a structural thickness of the first portion. The metal cover elastic inner pad structure of claim 1, wherein a circumferential groove of the top surface of the metal cover is circumferentially raised, and the elastic inner pad is attached to the circumferential groove groove. .