CN118850504B

CN118850504B - Can opening device and can

Info

Publication number: CN118850504B
Application number: CN202411102417.9A
Authority: CN
Inventors: 魏义坤; 祝浩然
Original assignee: Shandong Bencaotang Ejiao Products Co ltd; Zhejiang Sci Tech University ZSTU
Current assignee: Shandong Bencaotang Ejiao Products Co ltd; Zhejiang Sci Tech University ZSTU
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2025-10-10
Anticipated expiration: 2039-06-12
Also published as: CN110254897A; CN110254897B; CN118850504A

Abstract

A pop-top can opening device comprises a can cover and a pull tab formed by cutting scores on the can cover, wherein a pull ring is arranged at the front end of the pull tab, and a connecting structure for connecting the pull tab with the can cover after the pull tab is disconnected at the cutting scores is arranged between the rear end of the pull tab and the can cover. The invention provides a pop can opening device with a connecting structure, which enables a pull tab to be connected with a can cover through the connecting structure, thereby facilitating the recovery of the pull tab.

Description

Pop can opening device and pop can

The application discloses a split application of 2019, 06 and 12 days, 201910508167.1 and a pop can opening device.

Technical Field

The invention relates to a pop-top can opening device, in particular to a pop-top can opening device with a connecting structure, and also relates to a pop-top can with the pop-top can opening device.

Background

Since Mikola Kondakow and James Wong invented in 1951, pop cans are popular because of their simple and practical structural design. The main key part of the pop can is an opening device on the can cover.

Through long development history, the pop-top can opening devices which are kept in the market at present can be mainly divided into an out-lifting type pull ring and an embedded pull ring.

The pop-top can adopting the outward-lifting type structural design is mainly characterized in that a pull ring is pulled outwards, and the pull ring is connected to a can cover through a pull tab formed by a notch. The pull tab can be pulled out and separated from the can body, but on one hand, the edge of the pull tab pulled out is sharp, fingers or clothes are easy to cut, and on the other hand, the pull tab which falls off is easy to be abandoned at the roadside, so that certain pollution is necessarily generated to the environment.

The pop-top can adopting the embedded structural design mainly comprises a pull ring which is lifted outwards by fingers, and a pull tab formed by scoring is pressed down on the can cover by the other end of the pull ring, so that the pull tab is embedded into the can body. At this time, the pull tab is kept on the can body, so that the problem existing in the outward lifting mode can be avoided, but the embedded opening device needs to enable the whole pull tab to enter the can body, bacteria and dust on the surface of the pull tab are easy to be brought into the beverage, and therefore certain sanitary and safety problems exist. In summary, the existing pop-top can opening device mainly has the following problems of (1) resource waste and environmental problems caused by abandoned pull tabs, (2) health and sanitation problems possibly caused by pull tabs entering a can body, and (3) sharp edges of the pull tabs are easy to accidentally injure. It is therefore desirable to provide a can opening device that solves the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the pop-top can opening device with the connecting structure, and the pull tab is kept connected with the can cover through the connecting structure, so that the pull tab can be recycled.

The technical scheme includes that the pop-top can opening device comprises a can cover and a pull tab formed by cutting edges on the can cover, wherein a pull ring is arranged at the front end of the pull tab;

The connecting structure comprises rotating shafts symmetrically arranged on two sides of the reinforcing member and supporting seats which are arranged on the tank cover and are used for inserting the end parts of the rotating shafts, and hinge holes for inserting the end parts of the rotating shafts are formed in the supporting seats;

The limiting structure comprises a limiting clamping block which is arranged in the hinge hole and protrudes towards the rotating shaft, and a limiting groove which is arranged on the periphery of the rotating shaft and is used for the limiting clamping block to enter to form limiting fit;

When the rotating shaft rotates, the surface of the limiting clamping block is abutted against the peripheral side surface of the rotating shaft, and when the limiting groove on the rotating shaft rotates to the position of the limiting clamping block, the limiting clamping block enters the limiting groove and limits the rotating shaft to rotate.

The connecting structure has the beneficial effects that the connecting structure for enabling the pull tab to remain connected with the can cover after the pull tab is disconnected at the notch position is arranged between the rear end of the pull tab and the can cover, and the pull tab remains connected with the can cover through the connecting structure after the pull tab is completely disconnected along the notch. Thus, the pull tab is prevented from being discarded randomly, and the pull tab is convenient to recycle, so that the resource waste and the environmental pollution problem are reduced. Wherein, limit structure that restriction pivot free rotation has been set up. The limiting structure is arranged because after the pull tab is completely disconnected with the nick, the pull tab can freely rotate around the supporting seat, and the pull tab is extremely easy to reversely fall back to block the opening of the can cover when the beverage is poured by the inclined pop can, so that the limiting structure for limiting the free rotation of the rotating shaft is arranged. The limiting structure is arranged between the rotating shaft and the hinge hole, when the rotating shaft rotates, the surface of the limiting clamping block is abutted against the peripheral side face of the rotating shaft, but the normal rotation of the rotating shaft is not affected, and when the limiting groove of the rotating shaft rotates to be opposite to the limiting clamping block, the limiting clamping block enters the limiting groove and the normal rotation of the rotating shaft is limited. Therefore, the limit structure of this scheme is through the cooperation of limit fixture block and spacing recess, and restriction pivot free rotation can avoid falling back again when the beverage is poured to the slope easy open can and block the open-ended problem of cover, guarantees that the pull tab rotates the in-process and is limited to this limit structure, can keep in a fixed position, avoids hindering the drink.

By adopting the technical scheme, the limiting structure for limiting the free rotation of the rotating shaft is arranged. The reason for providing the limit structure is explained above and is not repeated here. The limiting structure is arranged between the rotating shaft and the hinge hole, when the rotating shaft rotates, the surface of the limiting clamping block is abutted against the peripheral side face of the rotating shaft, but the normal rotation of the rotating shaft is not affected, and when the limiting groove of the rotating shaft rotates to be opposite to the limiting clamping block, the limiting clamping block enters the limiting groove and the normal rotation of the rotating shaft is limited. Therefore, the limit structure of this scheme is through the cooperation of limit fixture block and spacing recess, and restriction pivot free rotation can avoid falling back again when the beverage is poured to the slope easy open can and block the open-ended problem of cover, guarantees that the pull tab rotates the in-process and is limited to this limit structure, can keep in a fixed position, avoids hindering the drink.

The distance between the rotating shaft and the front end edge and the rear end edge of the reinforcing component is less than 2mm.

The rotating shafts are arranged at a certain distance from the front end edge and the rear end edge of the reinforcing component, namely, the rotating shafts are not arranged at the front end edge and the rear end edge of the reinforcing component. This is because, since the reinforcing member on the tab is formed in a lever structure in cooperation with the rotation shaft, which serves as a fulcrum for the rotation of the reinforcing member, the reinforcing member rotates about the rotation shaft, and when the tab of the open rear end is opened, an external force acts on the front end of the reinforcing member to move it upward (i.e., to move it outward) and, due to the lever structure, the reinforcing member rotates about the rotation shaft to move the rear end of the reinforcing member downward (i.e., to move it inward) at the same time. Therefore, if the rotation shaft is located at the front end edge of the reinforcing member, external force may not be applied to the front end of the reinforcing member to move it upward, and if the rotation shaft is located at the rear end edge of the reinforcing member, the tab may not be completely separated from the score. In addition, the distance between the rotating shaft and the edge of the rear end of the pull tab is smaller than 2mm, so that the distance between the rotating shaft and the edge of the rear end of the pull tab is reduced, the part entering the tank body is reduced, and bacteria and dust on the pull tab are prevented from entering the tank body.

The reinforcing component is in a cross shape and consists of a transverse rod and a longitudinal rod perpendicular to the transverse rod, wherein the transverse rod is positioned on a connecting line of the front end and the rear end of the pull piece, the reinforcing component is fixed on the pull piece through rivets, and the rotating shaft is positioned at the end part of the longitudinal rod.

By adopting the technical scheme, the reinforcing component is arranged in a cross shape, the longitudinal rods extend outwards along two sides of the transverse rod, and the rotating shaft is arranged at the end part of the longitudinal rod, so that the stability of the action of the reinforcing component is enhanced. Further, the reinforcing member is fixed to the pull tab by rivets, and such rivet fixing methods are well known in the art, and can be easily known to those skilled in the art.

The invention also provides a pop can, which comprises a can body and the pop can opening device.

The pop-top can has the beneficial effects that the pop-top can comprises the pop-top can opening device, and the connecting structure for connecting the pull piece with the can cover after the pull piece is disconnected at the notch position is arranged between the rear end of the pull piece of the pop-top can opening device and the can cover, so that the pull piece can be kept connected with the can cover through the connecting structure after the pull piece is completely disconnected along the notch, thereby being convenient for recycling the pull piece and avoiding polluting the environment. Secondly, the distance between the rotating shaft and the edge of the rear end of the pull tab makes the part entering the tank body smaller so as to prevent bacteria and dust on the pull tab from entering the tank body. Therefore, the pull tab and the can cover are always connected through the connecting structure, so that the pull tab can be conveniently recovered, and the problems of resource waste and environmental pollution are reduced.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present invention;

Fig. 2 is a schematic plan view of a pop-top can opening device according to a first embodiment of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2;

FIG. 4 is a schematic view of a pull tab according to a first embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view of a pop-top can opening device according to a first embodiment of the present invention, wherein a limiting portion is located at one side of a protrusion;

fig. 6 is an enlarged view of a portion B in fig. 5;

fig. 7 is a schematic cross-sectional view of a pop-top can opening device according to a first embodiment of the present invention, wherein a limiting portion is located at the other side of a protrusion;

fig. 8 is an enlarged view of a portion C in fig. 7;

fig. 9 is a schematic partial cross-sectional view of a can opener according to a second embodiment of the invention

FIG. 10 is a schematic view of a pull tab according to a third embodiment of the present invention;

The pop can opener 1, a tab 11, a tab 12, an installation position 121, a connection structure 13, a reinforcement member 131, a transverse rod 131A, a longitudinal rod 131B, a rotation shaft 132, a support base 133, a stopper 134, a guide slope 135, a torsion piece 136, a stopper block 137, a stopper groove 138, a hinge hole 139, a stopper protrusion 14, a can lid 15, an opening 16, a can body 2, a score 3, and a rivet 5.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

As shown in fig. 2, the can opener 1 described herein includes a can lid 15, and a tab 11 surrounded by a score 3 on the can lid 15, wherein a front end of the tab 11 refers to an end (a tab right end in fig. 2) near a tab 12 mounting position 121, and a rear end of the tab 11 refers to an end (a tab left end in fig. 2) distant from the tab 12 mounting position 121. Thus, when tearing the tab 11, the tab 11 is first broken from the score at the mounting location 121 and then gradually broken from the front end to the rear end. Similarly, the front and rear ends of the reinforcing member 131 are defined in the same manner as the tab 11, and one end of the reinforcing member 131 near the tab 12 attachment position 121 is the front end and the other end opposite to the front end is the rear end.

In a first embodiment, as shown in fig. 1 to 8, a can includes a can body 2 and a can opening device 1. The pop-top can opening device 1 comprises a can lid 15 and a pull tab 11 surrounded by a notch 3 on the can lid 15, wherein a pull ring 12 is arranged at the front end of the pull tab 11 through a riveting part, and an installation position 121 of the pull ring 12 is positioned at the front end of the pull tab 11 and is tightly attached to the edge of the pull tab 11. Wherein the rivet member may be a rivet. In addition, the mounting location 121 of the tab 12 is as close as possible to the edge of the tab 11 so that as little as possible access to the can body is provided and bacteria and dust on the tab 11 are prevented from entering the can body as much as possible.

A reinforcing member 131 is fixedly provided at the rear end of the pull tab 11, and the reinforcing member 131 is fixed to the pull tab 11 by means of rivets 5. The reinforcement member 131 has a cross shape including a transverse bar 131A and a longitudinal bar 131B perpendicular to the transverse bar 131A, the transverse bar 131A being located on a line connecting the front end and the rear end of the pull tab 11, the longitudinal bar 131B extending outwardly along both sides of the transverse bar 131A to enhance stability of the reinforcement member 131.

A connecting structure 13 for connecting the pull tab 11 and the can lid 15 after the pull tab 11 and the can lid 15 are disconnected at the notch 3 is arranged between the rear end of the pull tab 11 and the can lid 15, and the pull tab 11 is still connected with the can lid 15 after the pull tab 11 is completely disconnected at the notch position through the connecting structure 13, so that the pull tab 11 is conveniently recovered, and the resource waste and the environmental pollution problem are reduced.

The connecting structure 13 comprises a rotating shaft 132 symmetrically arranged at two sides of the reinforcing part 131 and a supporting seat 133 arranged on the tank cover 15 and used for inserting the end part of the rotating shaft 132, one end of the rotating shaft 132 is inserted into the end part of a longitudinal rod 131B of the reinforcing part 131 and is in rotary fit with the longitudinal rod 131B, a hinge hole 139 is arranged on the supporting seat 133, the other end of the rotating shaft 132 is inserted into the hinge hole 139, and the rotating shaft 132 is in rotary connection with the hinge hole 139, so that the pull tab 11 is still connected with the tank cover 15 after being completely disconnected along the notch and can rotate freely relative to the supporting seat 133.

In order to prevent the pull tab 11 from reversely falling back to block the can lid opening 16 when tilting the can to pour the beverage, the can opener 1 is further provided with a limiting structure for limiting the rotation of the rotation shaft 132, the limiting structure comprising a limiting portion 134 fixed to the side of the reinforcement member 131 and rotated with the rotation shaft 132, and a limiting protrusion 14 provided on the can lid 15 for limiting the free rotation of the limiting portion 134. In the process that the limiting part 134 rotates along with the rotating shaft 132, when the limiting protrusion 14 abuts against the limiting part 134, the limiting protrusion 14 stops the limiting part 134 from rotating, but due to the fact that the can cover 15 (usually aluminum) has certain ductility, the can cover 15 is sunken or deflects downwards under the action of external force, namely, the limiting protrusion 14 moves downwards along with the can cover, so that the limiting protrusion 14 deflects in a direction away from the limiting part 134, the blocking action of the limiting protrusion 14 is relieved, and the limiting part 134 rotates beyond the limiting protrusion 14. In order to save more effort when the blocking effect of the limiting projection 14 is released, a guide inclined surface 135 is provided on the surface of the limiting portion 134 for limiting the rotation of the limiting projection 14, the guide inclined surface 135 is in a circular arc shape, and when the limiting portion 134 rotates over the limiting projection 14, the limiting projection 14 slides along the circular arc surface, thereby facilitating the limiting portion 134 to overcome the limitation of the limiting projection 14. The guiding inclined surface 135 may be a common inclined surface. In some cases, a guiding slope 135 may also be provided on the surface of the limiting protrusion 14 for limiting rotation of the limiting portion, for example, the surface of the limiting protrusion 14 may be semicircular, and the limiting portion 134 rotates along the semicircular surface when the limiting portion 134 rotates over the limiting protrusion 14, so that the process of the limiting portion 134 crossing the limiting protrusion 14 is more labor-saving.

In order to reduce the portion of the tab 11 that enters the can body, the distance from the rotating shaft 132 to the rear end edge of the tab 11 is 2mm, and bacteria and dust on the tab 11 are prevented from entering the can body to the greatest extent. In some embodiments, the axis of rotation 132 is 1mm from the rear edge of the pull tab 11.

In use, the front edge of the tab 11 is first broken at the score location by the tab 12 and the front end of the tab 11 is progressively broken in the rearward direction. Since the reinforcing member 131 on the tab 11 is formed in a lever structure in cooperation with the rotation shaft, wherein the rotation shaft 132 serves as a fulcrum for the rotation of the reinforcing member 131, the reinforcing member 131 rotates about the rotation shaft 132, and thus, during the disconnection of the rear end of the tab 11 from the score 3, an external force acts on the front end of the reinforcing member 131 to move it upward, and due to the lever structure, the reinforcing member 131 rotates about the rotation shaft 132, so that the rear end of the reinforcing member 131 simultaneously moves downward to open the connection between the tab 11 and the can lid 15. After the pull tab 11 is completely disconnected at the notch 3, the pull tab 11 can freely rotate around the supporting seat 133, the limiting part 134 of the pull tab 11 is abutted against the limiting protrusion 14 by means of external force, the limiting protrusion 14 is stressed to deviate in a direction away from the limiting part 134, so that the limiting part 134 overcomes the limitation of the limiting protrusion 14 and passes over the limiting protrusion 14 to continue to rotate, and the limiting protrusion 14 plays a role in blocking the reverse rotation of the limiting part 134 under the action of no external force so as to prevent the reverse rotation of the pull tab 11, thereby avoiding that the pull tab 11 falls back again to block the opening 16 when the beverage is poured from the inclined pop can, and affecting normal drinking. In summary, the pop-top can opening device is very convenient and reasonable to use, and is convenient for recovering the pull tab 11, thereby reducing the resource waste and environmental pollution.

As shown in fig. 9, the main difference between the second embodiment and the first embodiment is the limiting structure, which includes a limiting block 137 disposed in the hinge hole 139 and protruding toward the rotating shaft 132, and a limiting groove 138 disposed on the peripheral side of the rotating shaft 132 for the limiting block 137 to enter to form a limiting fit. When the rotating shaft 132 rotates, the limiting clamping block 137 is in contact with the circumferential side surface of the rotating shaft 132, but the contact does not affect the normal rotation of the rotating shaft 132, and when the limiting groove 138 on the rotating shaft 132 rotates to the position of the limiting clamping block 137, the limiting clamping block 137 is clamped into the limiting groove 138 in a homeotropical manner, so that the limiting groove 138 and the limiting clamping block 137 form a limiting fit, and the normal rotation of the rotating shaft 132 is further limited. The limit structure in this embodiment, through the cooperation between limit fixture block 137 and limit groove 138, has solved pull tab 11 and can lid 15 and has rotated the problem at will after separating mutually, guarantees that pull tab 11 rotates the in-process and is limited to limit structure, can keep in a fixed position, avoids hindering the drink.

As shown in fig. 10, the main difference between the third embodiment and the first embodiment is the connection structure 13, wherein the connection structure 13 includes torsion pieces 136 symmetrically disposed on both sides of the pull reinforcement member 131, and a support base 133 disposed on the can lid 15 for fixing each torsion piece 136, and the torsion pieces 136 are flexible aluminum sheets. As the tab 11 rotates, the torsion tab 136 twists itself to engage the opening 16, but at the same time, the tab 11 remains attached to the can lid 15. In addition, since the torsion piece 136 cannot automatically return to the original shape without an external force, the position of the pull tab 11 connected to the torsion piece 136 is fixed accordingly. The pull tab 11 thus remains attached to the can lid 15 at all times when tilting the can to pour the beverage, and does not fall freely to block the opening 16.

Claims

1. A can opening device, comprising a can lid and a pull tab formed by a notch on the can lid, a pull ring mounted on the front end of the pull tab, and a connecting structure mounted between the rear end of the pull tab and the can lid to ensure that the pull tab and the can lid remain connected after being disconnected at the notch.

A reinforcement component is fixed to the rear end of the pull tab, and the connection structure includes rotating shafts symmetrically arranged on both sides of the reinforcement component, and a support seat arranged on the can cover and for inserting the ends of each rotating shaft, and the support seat is provided with a hinge hole for inserting the ends of each rotating shaft;

A limiting structure for limiting the rotation of the rotating shaft is also provided, the limiting structure comprising a limiting block provided in the hinge hole and protruding toward the rotating shaft, and a limiting groove provided on the circumference of the rotating shaft and for the limiting block to enter to form a limiting fit;

When the shaft rotates, the surface of the limit block contacts the peripheral side of the shaft. When the upper limit groove on the shaft rotates to the position of the limit block, the limit block enters the limit groove and limits the rotation of the shaft.

2. The can opening device according to claim 1, wherein the rotating shaft is a certain distance away from the front edge and the rear edge of the reinforcing component, and the distance between the rotating shaft and the rear edge of the pull tab is less than 2 mm.

3. A can opening device according to any one of claims 1 or 2, characterized in that the reinforcing component is cross-shaped, and consists of a transverse rod and a longitudinal rod perpendicular to the transverse rod, wherein the transverse rod is located on the line connecting the front end and the rear end of the pull tab, and the reinforcing component is fixed to the pull tab by rivets, and the rotating shaft is located at the end of the longitudinal rod.

4. A can comprising a can body, characterized in that the can further comprises a can opening device according to any one of claims 1 to 3.