BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 shows a perspective view of the easy open can of the present invention;
FIG. 2 shows a cross sectional view of the lid of FIG. 1;
FIG. 3 shows a top plan view of the tear strip of the present invention;
FIG. 4 shows a perspective view of a first action of the tear strip of the present invention;
FIG. 5 shows a cross sectional view of the lid of FIG. 4;
FIG. 6 shows a perspective view of a second action of the tear strip of the present invention;
FIG. 7 shows a cross sectional view of the lid of FIG. 6;
FIG. 8 shows a perspective view of a third action of the tear strip of the present invention; and
FIG. 9 shows a cross sectional view of the lid of FIG. 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The description is described in detail according to the appended drawings hereinafter.
As shown in FIGS. 1 and 2, a perspective and a cross sectional views of the lid are illustrated. In which, an easy open can 10 includes a can 1, and a lid 2 seamlessly welded to the can 1. A tear strip 20 is disposed on the lid 2. As shown in FIG. 3, the structure of the tear strip 20 is illustrated. Such tear strip and the lid are integrally formed. But a circumference of the tear strip 20 is bound and connected to the lid 2 by a score line, which can be used to separate the tear strip from the lid. To prevent the tear strip 20 form breaking away the lid 2, both ends of the score line can be formed as curved lines 29 bent outward and diverged from the score line; said tear strip 20 can be divided into a front tear strip 21 and a rear tear strip 22, a joint between the foldable front and the rear tear strips 21,22 can be formed as a folded line 23, across which bends the front tear strip 21 toward the rear strip 22. But a joint between the rear tear strip 22 and the lid 2 can be formed as a folded line 24, across which rips the rear tear strip 22 apart from the lid. Next, a surface of the front tear strip 21 is riveted together with a tab 3 adjacent to its nose by riveting.
Moreover, a cambered boss 25 is formed on a surface facing outward of the front tear strip 21 by punching; the cambered boss 25 is located in front of the rivet 4 by punching. Two cambered bosses 26 are formed on a surface facing outward of the rear tear strip 21 by punching; both cambered bosses 26 are opposite to each other and distributed symmetrically in left and right relationship on the rear tear strip 22. A cambered groove 27 is formed on a surface facing outward of the rear tear strip 22 by punching; the cambered groove 27 is located behind the rear tear strip 22. All of the cambered bosses 25,26 and the cambered groove 27 are formed to enhance the structure of the tear strip 20 and the lid 2.
As shown in FIGS. 4 and 5, a perspective and a cross sectional views of the first action of the tear strip are illustrated. When a ring shaped second end 31 of the tab 3 is pulled upward, the tab is based on the rivet 4 as a pry to exert a force; therefore, a first end of the tab 3, that is, a nose 32 can be pressed downward, further ripped along the score line, which is bordered in between the front tear strip 12 and the lid, apart from the lid 2 to form an opening 28. And the front tear strip 21 is bent downward across the folded line 23; according to the principle of leverage, when the tab 3 has an input arm larger than the output arm, a labor-saving effect can be obtained.
As shown in FIGS. 6 and 7, a perspective and a cross sectional views of the second action of the tear strip are illustrated, which are consecutive to the first action views depicted in FIGS. 4 and 5. When the user pulls out the tab 3 backward, the rear tear strip 22 will be erected rearward across the folded line 24. At the same time, the front tear strip 21 will be pulled out from the opening 28 following the rear tear strip 22 further to raise above the lid in parallel and supported by the upright rear tear strip 22. Therefore, the front tear strip 21 will be separated from the opening 28 until the rear tear strip 22 is upright illustrated as shown in FIG. 7. The second action is therefore completed.
As shown in FIGS. 8 and 9, a perspective and a cross sectional views of the third action are illustrated, which are also consecutive to the second action views depicted in FIGS. 6 and 7. The tab 3 is further pulled rearward and then pressed downward; therefore, the rear tear strip 22 reclined rearward and downward across the folded line 24 close to the lid 2. Furthermore, the front tear strip 21 is pressed downward across the folded line 23 close to the reclined tear strip 22. As a result, the tear strip 20 is formed as bi-pack tear strip folded up and stacked together in parallel above the lid 2. That is not only space economical, but the user can drink the beverage from the can more easily. And the tear strip 20 is clung to the lid 2 in parallel; the tear strip 20 will not be dropped off into the opening 28.
Said front and rear tear strips 21,22, can be folded up to give way to form the opening 28 fully opened out, and both tear strips 21, 22 retained on the lid 2. In comparison to the conventional easy open can, both front and rear tear strips 21,22 of the present invention are folded up on the lid 2 parallel to the lid, the tear strip will not drop off into the easy open can to contaminate the beverage.
Patent Application
20070284374
