JPH052446Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for forming an opening in a lid plate of a beverage can.

The conventional spout structure consists of a notch in the lid plate that goes around the opening removal part, and a knob riveted to the center of the opening removal part.When opening, the can body is fixed and the knob is moved toward the front. The opening is inconvenient because the removed part is removed by pulling the can, and the removed part must be returned to the can or disposed of separately.

Further, the opening removal portion in the conventional product is formed in a bilaterally symmetrical shape, and the rivet of the tab knob is located on the axis of the opening removal portion and is clamped. Therefore, a relatively large force is required to break the cut.

In this case, instead of separating the removal part by pulling the knob as in the conventional product, the deformable bending tongue piece formed on the can lid is inserted into the can by pushing in the tab that replaces the knob, leaving the connecting part. To provide an opening device that can be pushed into an opening and can be opened easily even with a relatively small force.

The configuration of the device according to the present invention is shown with reference numerals in the figure. The U-shaped cut line has a long side 5b and a short side 5c on the top surface of the can lid, and a U-shaped cut line is connected to the base of the long side of the cut line and is provided at the base of the short side. A deformed push-opening tongue piece 4 surrounded by an inclined cut line 5a reaching the connecting part 6 is formed, and a pressing protrusion 8 is formed at the long side base of the U-shaped cut line on the tongue piece. Further, a generally rectangular tab 9 is fixed to the upper surface of the can lid by a rivet 11 located outside the inclined cut line 5a and on the center line of the deformed tongue piece. A U-shaped punching groove 12 that surrounds the bent portion 13 and the rivet and reaches both ends of the bent portion is formed along the inclined cut line 5a, and the pressing protrusion 8 and the rivet 1.
A finger hook piece 15a is provided on a line connecting the finger hook pieces 1, and a finger hook recess 16 is formed on the upper surface of the can lid located directly below the finger hook piece.

In this case, the deformable bending tongue piece is formed asymmetrically, and the protrusion for pressing the tab is formed on the acute corner sandwiched between the long side cut line and the inclined cut line that partition it. Therefore, when opening, the opening is broken from this acute corner, and as the tab is further pressed, the front edge of the tab comes into contact with the deformed tongue piece, and the broken part moves to the connecting part. This has the advantage that it can be opened easily even with a small force.

The configuration of the present invention will be described below with reference to the embodiments shown in the figures.

Reference numeral 1 denotes a lid plate made of a thin metal plate such as aluminum, 2 a seam-fastening edge, 3 a flat plate portion, and 4 a deformed tongue portion serving as a bent portion, around which a notch 5 is carved. 6 is a connecting portion.

The deformed tongue piece 4 has a U shape having a long side 5b and a short side 5c.
A pressing protrusion 8 is formed at an acute corner 7 formed by the shaped cut line and the inclined cut line 5a, and sandwiched between the long side cut line and the inclined cut line.

Reference numeral 9 designates a tab made of a slightly thick metal plate, and its center portion 10 is located outside of the slanted cut line 5a and on the center line of the deformed tongue piece, and is secured with a rivet 11.

Reference numeral 12 denotes a U-shaped punched groove for bending, and both ends 12a and 12b thereof are positioned along the inclined cut line 5a, and a bent part 13 is formed therebetween.

One of the front edges 14 of the tab 14 a is located on the pressing part 8 of the deformable tongue, and the other 14 b is located inside the connecting part 6 . Reference numeral 15 indicates the rear edge of the tab, and one side portion 15a thereof is located on a line connecting the pressing portion 8 and the center portion 10 of the tab, thereby forming a finger hook portion 15a.

Reference numeral 16 is a recess for a finger rest, which also serves as an indicator.

17, 18, and 19 are reinforcing ribs.

In this product configured as described above, when the finger hook part 15a is pushed up, the front edge 14 of the tab 9 is pushed down along the bent part 13, and the first part 14a comes into contact with the pressing part 8. Since a strong pressing force is applied intensively due to the lever action, the notch in the peripheral area breaks. (Fig. 3) As the tab further bends, the front edge 14 of the tab comes into contact with the base of the tongue, and the break point also moves, pushing the separated tongue 4 down into the can via the connecting part 6. .
(FIG. 4) In this case, pushing can be made easier and more reliable by moving the finger hook from 15a to the center.

When drinking, the tab 9 can be returned to its original position so that it does not get in the way.

As described above, in the opening device of the present invention, there is no object to be removed when opening, and since the tongue piece is integrated with the lid plate through the connecting part 6, it is possible to prevent dust pollution, and since it is inside the can, it can be used safely without any danger. .

Of course, even if the structure of this product is reversed left and right, its operation and effect are exactly the same.

[Brief explanation of the drawing]

Fig. 1 is an enlarged plan view of the product, Fig. 2 is a cross-sectional view taken along the line shown in Fig. 1, Fig. 3 is a sectional view taken along the line shown in Fig. 1 in the initial opening state, and Fig. 4 is a sectional view taken along the line taken in the opened state.
It is a sectional view of the main part of the line. 4... Deformed tongue piece, 5... Notch, 6... Connecting part, 8... Pressing part, 9... Tab.

Claims (1)

[Scope of utility model registration request] A U-shaped cut line having a long side 5b and a short side 5c on the top surface of the can lid, and an inclined cut line 5a that connects to the long side base of the cut line and reaches a connecting part 6 provided at the short side base. A deformed push-opening tongue piece 4 is formed surrounded by the tongue piece, and a pressing protrusion 8 is formed at the base of the long side of the U-shaped cut line on the tongue piece. A tab 9 is fixed by a rivet 11 located outside the inclined score line 5a and on the center line of the deformed tongue, and the tab has a bent portion parallel to the inclined score line 5a. 13 and the rivet, and a U-shaped punching groove 12 that reaches both ends of the bent portion is formed, and a finger hook 15a is provided on a line connecting the pressing protrusion 8 and the rivet 11. A beverage can lid opening device in which a finger hook recess 16 is formed on the top surface of the can lid located directly below.