JPH06336247A - Can lid - Google Patents

Abstract

PURPOSE:To form a large opening in a lid plate part as the liquid pour opening, in a can having the lid plate part on which a tear piece and an opening tab stay after pulling the tear piece. CONSTITUTION:A bendable fixing piece 22 formed approximately in the center of an opening tab 2 is fixed in the center of a lid plate part 11 for covering the top opening part of a can body C and a score 13 is formed to define a nearly U-shaped tear piece 12 extending in the diametrical direction with the fixing piece 22 of the opening tab 2 disposed on the lid plate part 11 midway between the scores. By raising and pulling up the opening tab 2, the can lid is opened with the tear piece 12 bent on itself on the lid plate part 11 or by raising and pushing down the opening tab 2, it is opened with the tear piece 12 forced into the can body C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can lid for opening an opening piece formed on a cover plate portion of a can container for storing beverages such as juice and beer with an opening tab.

[0002]

2. Description of the Related Art In a can lid in which an unsealing piece formed on a lid plate portion of a can container is unsealed by an opening tab, conventionally, a generally fan-shaped unsealing piece extending in a radial direction is formed in a lid plate portion by a cut groove. Many of them have been put into practical use, in which the tip end of the opening tab formed on the side opposite to the opening piece is fixed to the apex corner of the opening piece. When opening the opening piece, this can lid causes the knob part of the opening tab to be raised from the lid plate part to initially cut the notch groove of the opening piece from the apex angle part, then pull the opening tab to the opening piece side and leave it. The cutting groove is gradually cut, and finally the unsealing piece is separated from the lid plate part together with the unsealing tab. However, in the above-mentioned can lid, since the opening piece is completely separated from the lid plate part together with the opening tab, after opening the opening piece,
There is a problem that the unsealing piece and the unsealing tab are irrelevantly discarded.

Therefore, in order to solve the problem of the can lid,
After opening the opening piece with the opening tab, the opening piece remains on the lid plate together with the opening tab, and a can lid was developed and commercialized, which can discard the opening piece and the opening tab together with the can container. In this can lid, a substantially C-shaped opening piece extending in the radial direction is formed by a cut groove in the lid plate portion, and a foldable fixing piece formed at the center of the opening tab is fixed to the center of the lid plate portion. is doing. In this can lid, when opening the opening piece, when the knob of the opening tab is raised from the lid plate, the fixing piece bends at the base end on the side of the pressing part and pushes down one side of the opening piece at the tip of the pressing part. Therefore, the cut groove of the opening piece is initially cut from the pressing portion. Then, by further raising the knob and pressing down the opening piece by the pressing part, the remaining notch groove is gradually cut,
Finally, the unsealing piece is pushed into the can body by the pressing portion of the unsealing tab.

However, in the above-mentioned can lid in which the unsealing piece and the unsealing tab are left in the lid plate portion, the unsealing piece has a connection end near the center of the lid plate portion which is continuous with the lid plate portion. Therefore, it is technically very difficult to form an opening piece on the lid plate portion. This is because if the connecting end of the unsealing piece is formed closer to the fixing position of the unsealing tab than the specified size, when the fixing piece of the unsealing tab is caulked and fixed to the center of the lid plate part, the unsealing piece is caused by the impact force. This is because there is a possibility that the notch groove may be cut from the cover plate portion near the connection end. In addition, in order to easily cut the cut groove of the unsealing piece by raising the opening tab, the depth of the cut groove must be highly accurate. Moreover, since the opening formed in the lid plate portion after opening the opening piece is only a substantially C-shaped size extending in the radial direction from the center of the lid plate portion, there are many complaints that the beverage in the can body is difficult to drink. It was

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the above-mentioned can lid, and a bendable fixing piece is provided at the center of the lid plate portion. By opening and pulling up the opening tab fixed via the opening tab, a substantially U-shaped opening piece extending in the diameter direction formed on the lid plate is opened in a state of being folded in two on the lid plate, and the lid plate is provided with a drinking mouth. It is a first technical object to provide a can lid capable of forming a large opening that becomes The second technical object of the present invention, by causing the pushing operation of the opening tab which is fixed via a bent anchoring piece to the center of the lid plate portion, generally U-shaped extending in the diametrical direction which is formed in the lid plate portion It is intended to provide a can lid capable of forming a large opening serving as a drinking opening in the lid plate portion by opening the opening piece in a state in which the opening piece is bent at substantially the center and pushed into the can body.

[0006]

According to the present invention, a foldable fixing piece 22 formed substantially in the center of the opening tab 2 is fixed to the center of the lid plate portion 11 that closes the upper opening C1 of the can main body C. A substantially U-shaped opening piece 12 extending in the diametrical direction sandwiching the fixing piece 22 of the opening tab 2 is formed in the lid plate portion 11 by a notch groove 13, and the knob portion 21 of the opening tab 2 is raised to press the pressing portion 24. Push down the unsealing piece 12 with the base end portion 22 of the fixing piece 22.
It is folded into the can main body C from the vicinity of a, and the grip portion 21 of the unsealing tab 2 is pulled up toward the end side of the unsealing piece 12, so that the unsealing piece 12 is the base end 22a of the fixing piece 22 of the unsealing tab 2.
The first technical problem described above has been achieved by adopting a means of opening in a folded state in the vicinity. Further, in order to achieve the second technical problem, the present invention is a foldable fixing piece formed substantially at the center of the opening tab 2 at the center of the lid plate portion 11 that closes the upper opening C1 of the can main body C. 22 is fixed, and a substantially U-shaped opening piece 12 extending in the diametrical direction is formed in the cover plate portion 11 by sandwiching the fixing piece 22 of the opening tab 2 by the cut groove 13, and the knob portion 22 of the opening tab 2 is formed. The urging and pushing portion 24 pushes the opening piece 12 down to fold it into the can body C near the base end 22a of the fixing piece 22, and further pushes down the knob 21 of the opening tab 2 to bring the opening piece 11 to the end. We adopted a means to open it in the state that it was pushed inside.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail based on the embodiments shown in the accompanying drawings. 1 to 7 show a can lid that is opened by folding the unsealing piece in two on the cover plate portion, and FIGS. 8 to 14 show a can lid that is opened by pushing the unsealing piece into the can body.

The can lid shown in FIGS. 1 to 7 is, as shown in FIG. 1, a lid 1 attached to a tubular can body C for containing a beverage such as juice or beer, and the lid 1. And an opening tab 2 for opening an opening piece 13 formed on a lid plate portion 11 described later, both of which are made of the same material as the can main body C, that is, an aluminum thin plate or It is made of tin-plated thin steel sheet.

As shown in FIGS. 1 and 4 , the lid 1 has a thin dome-shaped lid plate portion 11 for closing the upper opening C1 of the can main body C, and this lid plate portion 11 is provided. The outer peripheral edge portion 11 ′ rising from the peripheral edge portion is integrally fastened to the peripheral edge portion C 2 around the upper opening portion of the can main body C so as to be attached to the can main body C. As shown in FIGS. 1 and 2, the lid plate portion 11 has a substantially U-shaped opening piece 12 extending in a diameter direction with a fixing piece 22 of an opening tab 2 described later interposed therebetween.
Are formed. The unsealing piece 12 is formed by a cut groove 13 formed by engraving the surface of the lid plate portion 11 so that a pair of cut ends 13a and 13b are separated from each other. The unsealing piece 12 is
A substantially U-shaped unsealing portion 1 which is formed wider than the width dimension of the pressing portion 24 and the projecting piece portion 25 of the unsealing tab 2 described later and extends from the front end of the pressing portion 24 to the vicinity of the front end of the fixing piece 22.
4 and a connecting portion 15 extending from the opening portion 14 toward the knob portion 21 side of the opening tab 2 and narrowing near the tip of the fixing piece 22 and continuing integrally with the lid plate portion 11. The unsealing piece 12
In the opening tab 14, the one side edge 12a, which is located directly below a cut-off piece 26 of the opening tab 2 described later, is attached to the opening tab 2.
It is formed in an overhanging portion 12a 'which has an arc shape near the fixing portion of the fixing piece 22 and projects outward. This overhang part 1
2a ′ regulates the progress of the cut groove 13 of the unsealing piece 12 when the unsealing piece 12 is unsealed by the unsealing tab 2, and
Open the unsealing piece 12 near the fixing piece 22 of the unsealing tab 2 at one side edge 1
It is for pulling out from the 2a side onto the lid plate portion 11. The opening piece 12 has a protrusion 27 for holding the opening tab 2 which will be described later and positioned inside the opening portion 14 inside the one side edge 12a and the other side edge 12b on the opposite side. The concave protrusion 16 is a fixing piece 22 of the opening tab 2.
On the extension line of the base end portion 22a of the unsealing portion 14 of the unsealing piece 12
A pair of folding grooves 1 for folding the inside of the can body C
7, U-shaped reinforcing ribs 18 for reinforcing the unsealing portion 14 of the unsealing piece 12 are formed in front of the pressing portion 24 and the projecting piece portion 25 of the unsealing tab 2. Note that reference numeral 19
Is a ridge formed by punching the lid plate portion 11 from the back side along the unsealing piece 12, and is a cut edge of the opening 12a which is formed in the lid plate portion 11 after opening the unsealing piece 12 and serves as a drinking mouth. This is to prevent the lips from being cut.

As shown in FIG. 1, the opening tab 2 is formed to be shorter than the entire length of the opening piece 12 of the lid plate portion 11. The opening tab 2 is made of a metal plate that is thicker than the lid plate portion 11, the ring-shaped knob portion 21 is arranged on the connection portion 15 of the opening piece 12, and the bent portion extending into the knob portion 21 is bent. A possible U-shaped fixing piece 22 is fixed by a caulking portion 23 protruding from the center of the lid plate portion 11 (hereinafter, the caulking portion 23 is referred to as a fixing portion). Then, the unsealing tab 2 integrally has a pressing portion 24 and a protruding piece portion 25 shorter than the pressing portion 24 on the side of the base end portion 22a which is the bent end of the fixing piece 22, and these pressing portions 24, By forming the projecting piece portion 25 in a concavo-convex shape, the pressing portion 24 is prevented from being deformed when the unsealing piece 12 is pushed down. The grip portion 21 is made wider than the connecting portion 15 of the unsealing piece 12, and the lid plate portion 11 is formed on both sides of the tip end thereof in front of the base end portion 22a of the fixing piece 22 during the raising of the unsealing tab 2. A pair of shoulders 21a and 21b that contact the base are formed. This shoulder 21a, 2
On the opening portion 14 of the opening piece 12, 1b extends outwardly beyond both side edges 12a and 12b of the opening portion 14. The pressing portion 24 is located on the unsealing portion 14 of the unsealing piece 12 from the approximate center in the width direction to the one side edge 12a side.
On the back surface of the tip side edge portion, there is formed a cut-off piece 26 protruding toward the one side edge 12a of the unsealing piece 12 (see FIG. 3). On the other hand, the projecting piece portion 25 is located inside the other end 12b on the unsealing portion 14 of the unsealing piece 12,
A projection 27 that fits into the concave projection 16 of the unsealing portion 14 is formed on the back surface of the rear end side edge portion that is produced by obliquely cutting the tip corner portion (see FIG. 3). As shown in FIG. 1, the protrusion 27 is formed on the fixing tab 2 of the unsealing tab 2 rather than the cut-off piece 26.
The lid plate portion 11 which is located closer to the second opening 2 and extends in the longitudinal direction of the unsealing piece 12 through the fixing portion 23 of the fixing piece 22 of the unsealing tab 2.
Is formed to be larger than the distance between the cut-off piece 26 and the center line L. As a result, when the opening tab 2 is raised and the cut-out groove 13 of the opening piece 12 is initially cut by the cut-out piece 26 as described later, a strong push-down force can be applied to the cut-out piece 26. The cut-off piece 26 and the projection 27 are formed at the same height so that a large number of opening tabs 2 can be stacked, and the cover plate portion 11 of the lid 1 and the fixing piece 22 of the opening tab 2 are illustrated. In the case of crimping and fixing with a crimping device, the opening tabs 2 can be continuously fed one by one onto the lid plate portion 11 of the lid body 1 by the feeding device.

In the can lid having such a structure, when the opening piece 12 is opened, the knob portion 21 of the opening tab 2 is changed from the state shown in FIG.
Then, the fixing piece 22 bends at the base end portion 22a, and the cut-off piece 26 of the pressing portion 24 becomes the projection 27 of the protruding piece portion 25.
With the fulcrum as a fulcrum, one edge 12a of the unsealing piece 12 is pushed down. In this state, as shown in FIG. 3, the projection 27 is located closer to the fixing piece 22 of the unsealing tab 2 than the cutting-off piece 26 and is further away from the center line L than the cutting-off piece 26. A strong push-down force acts on the cut-off piece 26 as a result of the setting of No. 2, and therefore the cut groove 1 of the opening piece 12 is cut.
3 is initially cut from the lid plate portion 11 at one side edge 12a of the unsealing portion 14.

Thus, after the cutting groove 13 of the unsealing piece 12 is initially cut, the grip portion 21 of the unsealing tab 2 is moved from the state shown in FIG. 1 so that the base end portion 22a of the fixing piece 22 is substantially perpendicular to the lid plate portion 11. When the knob 21 is raised until it reaches a certain point (see FIG. 4), the tip of the pressing portion 24 hits the opening portion 14 of the opening piece 12 and pushes down the opening portion 14 while the picking portion 21 is raised. As a result, the cut groove 13 of the unsealing piece 12 becomes the folding groove 17 of the unsealing piece 12.
It is cut to the vicinity and the progress of the cut groove 13 is restricted by the overhanging portion 12a 'of the unsealing piece 12, so that the unsealing piece 12 folds from the vicinity of the fold groove 17 toward the inside of the can main body C at a substantially right angle. Thereafter, the shoulder portions 21a and 21b of the picking portion 21 hit the lid plate portion 11 in front of the base end portion 22a of the fixing piece 22 and lift the unsealing portion 14 through the fixing piece 22. As a result, the cut groove 13 of the unsealing piece 12 is slightly cut on both sides of the fixed piece 22, and the unsealing piece 12 is pulled out from the side of the overhanging portion 12a 'onto the lid plate portion 11 (see FIGS. 4 and 5). .

Next, when the knob portion 21 of the unsealing tab 2 is pulled up from the state of FIG. 4 toward the terminal end side of the unsealing piece 12 (see FIG. 6), the notch groove 13 of the unsealing piece 12 is accompanied by the pulling force.
Is gradually cut toward the cut ends 13a and 13b.
Since the connecting portion 15 of the unsealing piece 12 pulls the unsealing portion 14 as the picking portion 21 is pulled up, the unsealing portion 14 bends from the vicinity of the folding groove 17 together with the base end 22a of the fixing piece 22 toward the connecting portion 15 side. Finally, the unsealing piece 12 is folded in the vicinity of the cut groove 17, that is, in the vicinity of the base end portion 22a of the fixing piece 22 of the unsealing tab 2 to form the opening 11a extending in the diametrical direction in the lid plate portion 11 ( (See FIG. 7).

In this manner, the can lid which folds the unsealing piece 12 on the lid plate portion 11 and opens it can form a large opening 11a extending in the diametrical direction in the lid plate portion 11 so that the can body C can be formed.
In addition to making it easier to drink, the opening piece 12 does not hit the tip of the nose.

In the can lid shown in FIGS. 8 to 14, as shown in FIG. 8, the tab 21 of the unsealing tab 2 is formed in a rectangular frame shape, and the unsealing portion 14 of the unsealing piece 12 protrudes from the unsealing tab 2. Strip 27
The concave projection 16 for positioning is formed, and the connecting portion 15 of the unsealing piece 12 is connected to the knob 21 of the unsealing tab 2.
It is configured in the same manner as the above-described can lid except that it is formed wider than the opening portion 14, that is, substantially the same width as the opening portion 14.

In the can lid having such a structure, when the knob portion 21 of the opening tab 2 is raised from the state shown in FIG. 8, the opening piece 12 is cut by the cut-out piece 26 of the opening tab 2 like the above-mentioned can lid. The insertion groove 13 is initially cut from the lid plate portion 11 from the one side edge 12a (see FIG. 3), and then, as shown in FIG.
The grip 21 and the base end 22a of the fixed piece 22 are covered with the cover plate 11
Then, the tip of the pressing portion 24 pushes the opening portion 14 downward. As a result, the cut groove 13 of the unsealing piece 12 is cut to the vicinity of the base end portion 22a of the fixing piece 22, and the unsealing portion 14 is bent near the base end portion 22a of the fixing piece 22 toward the inside of the can main body C at a substantially right angle. (Figs. 9 and 10
reference).

Next, when the knob portion 21 of the unsealing tab 2 is pushed down toward the inside of the can body C in that posture (see FIG. 11), the notch groove 13 of the unsealing piece 12 suddenly cuts into the notch end 13a,
13b is cut, and as a result, the unsealing piece 12 is connected to the connecting portion 1
5 enters the inside of the can main body C in a bent state with an obtuse angle near the tip of the fixing piece 22 (FIGS. 11 and 1).
2).

Then, when the knob 21 of the unsealing tab 2 is pushed down from the state shown in FIG. 11 toward the terminal end side of the unsealing piece 12 (see FIG. 13), the unsealing piece 12 is tilted and diametrically moved to the lid plate portion 11. The extending opening 11a is formed (see FIGS. 13 and 14).

In this manner, the can lid which completely pushes the unsealing piece 12 into the can body C to open the container can form a large opening 11a extending in the diameter direction in the lid plate portion 11 and the beverage of the can body C can be formed. Is easier to drink, and the opening tab 12 as well as the opening tab 2 does not hit the tip of the nose.

[0020]

As described above, according to the present invention, a substantially U-shaped unsealing piece extending in the diametrical direction is formed on the lid plate portion, and the unsealing piece is formed by the unsealing tab to the base end portion of the fixing piece. Since it is folded in half in the vicinity or pushed inside the can body to open it, a large opening extending in the diameter direction can be formed in the lid plate part, making it easy to drink the beverage in the can body. Moreover, the opening piece or the opening tab does not hit the tip of the nose when drinking a beverage. Moreover, when the canister is thrown away or when the canister is collected, there is no need to cut the hand with the opening piece and get injured. Moreover, since the opening piece extends in the diameter direction of the lid plate part with the fixing piece of the opening tab sandwiched between them, the positional relationship between the connecting end of the opening piece and the fixing position of the opening tab is strict as in the conventional can lid. Therefore, it is possible to easily and easily form the cut groove of the opening piece in the lid plate part, and also to fix the opening tab fixing piece by caulking it in the center of the lid plate part. Also, the cut groove is not cut near the connection end of the unsealing piece.

[Brief description of drawings]

FIG. 1 is a plan view of a can lid according to an embodiment of the present invention, in which an unsealing piece is folded in two on a lid plate portion to unseal.

FIG. 2 is a plan view showing a lid body of the can lid shown in FIG.

FIG. 3 is an explanatory view showing a state in which the cut portion of the opening piece is initially cut by the pressing portion of the opening tab in the can lid shown in FIG.

[Fig. 4] In the can lid shown in Fig. 1, the knob portion of the unsealing tab is raised until the base end portion of the fixing piece becomes substantially perpendicular to the lid plate portion, and the unsealing portion of the unsealing piece is pushed inside the can body by the pressing portion. It is sectional drawing which shows the state pushed in.

5 is a plan view of the can lid shown in FIG. 4. FIG.

6 is a cross-sectional view showing a state in which an opening is formed in the lid plate portion by pulling up a tab portion of the opening tab and folding the opening piece on the lid plate portion in the can lid shown in FIG. 1.

7 is a plan view of the can lid shown in FIG. 6. FIG.

FIG. 8 is a plan view of a can lid for opening an opening by pushing the opening piece into the can body according to another embodiment of the can lid according to the present invention.

[Fig. 9] In the can lid shown in Fig. 8, the knob portion of the unsealing tab is raised until the base end portion of the fixing piece becomes substantially at a right angle to the lid plate portion, and the unseal portion of the unsealing piece is pressed by the pressing portion inside the can body. It is sectional drawing which shows the state pushed in.

10 is a plan view of the can lid shown in FIG. 9. FIG.

FIG. 11 is a cross-sectional view showing a state in which the tab portion of the opening tab is pushed down to push the opening piece into the can body in the can lid shown in FIG. 7.

12 is a plan view of the can lid shown in FIG. 11. FIG.

FIG. 13 is a cross-sectional view showing a state in which the opening tab is pushed down to form an opening in the lid plate portion in the can lid shown in FIG. 7.

14 is a plan view of the can lid of FIG. 13. FIG.

[Explanation of symbols]

 C can main body C1 upper opening part L center line 11 cover plate part 12 unsealing piece 12a one side edge 12a 'overhanging part 12b other side edge 13 cutting groove 16 concave projection 17 folding groove 2 opening tab 21 picking part 21a shoulder Part 22 Fixing piece 24 Pressing part 25 Projecting piece part 26 Cutting off piece 27 Protrusion

Claims (7)

[Claims] 1. A foldable fixing piece 22 formed substantially in the center of an opening tab 2 is fixed to the center of a lid plate portion 11 that closes an upper opening C1 of a can main body C, and the lid plate portion 11 is opened. A substantially U-shaped opening piece 12 extending in the diametrical direction sandwiching the fixing piece 22 of the tab 2 is formed by the notch groove 13, and the grip portion 21 of the opening tab 2 is raised and the opening portion 12 is pushed down by the pressing portion 24 to be fixed. The piece 22 is folded into the can main body C from the vicinity of the base end 22a, and the knob 21 of the opening tab 2 is pulled up toward the end side of the opening piece 12 to open the opening piece 12 with the opening tab 2.
The can lid characterized in that it is configured to be opened in a folded state near the base end portion 22a of the fixing piece 22. 2. The unsealing tab 2 includes a pressing portion 24 which pushes the unsealing piece 12 toward the base end portion 22a side of the fixing piece 22 between the one side edge 12a and the substantially central portion in the width direction.
Has a short projecting piece portion 25 integrally formed with the pressing portion 24 inside the other end edge 12b, and is provided at one end edge 12a of the unsealing piece 12 at the leading end side edge portion of the pressing portion 24. When the cut-out groove 26 is formed at the rear end side edge portion of the protruding piece portion 25 near the fixed piece 22 while the cut-out groove 26 is formed by protruding toward the fixed piece 22. Protrusion 2 which is the fulcrum of
7 is projected toward the unsealing piece 12, and further, while the unsealing tab 2 is being raised, the unsealing piece 1 is provided from the vicinity of the base end portion 22a of the fixing piece 22.
The can lid according to claim 1, wherein a pair of shoulder portions (21a, 21b) that abut against the lid plate portion (11) are formed on both sides of the tip of the pick portion (21) so that the (2) does not enter the can body (C). 3. The protrusion 27 of the protruding piece portion 25, which serves as a fulcrum when the protruding piece 26 of the pressing portion 24 cuts the cut groove 13.
Is located closer to the fixing piece 22 of the unsealing tab 2 than the cut-off piece 26 of the pressing portion 24, and extends through the fixing portion 23 of the fixing piece 22 of the unsealing tab 2 in the longitudinal direction of the unsealing piece 12. 3. The can according to claim 2, wherein a separation dimension of the portion 11 with respect to the center line L is formed to be larger than a separation dimension between the parting piece 26 of the pressing portion 24 and the center line L. lid. 4. The opening piece 12 is provided with a concave projection 16 for locating a projection 27 so that the cut-out piece 26 of the opening tab 2 can push down one side edge 12a of the opening piece 12 to cut the cut groove 13. When the shoulders 21a and 21b of the knob 21 of the opening tab 2 hit the lid plate portion 11 and the tip of the pressing portion 24 pushes the opening piece 12 down, the opening piece 12 is formed inside the can body C. A folding groove 17 to be folded is formed on an extension line of the base end portion 22a of the fixing piece 12, and further, the grip portion 2 is formed.
When pulling up 1, the unsealing piece 12 is pulled out to the lid plate part 11 so that the overhanging parts 12a 'that bulge outward in the vicinity of the fixed part 23 of the fixing piece 12 are provided on both side edges 12a of the unsealing piece 12.
The can lid according to claim 2, wherein the can lid is formed on either one of 12b. 5. A foldable fixing piece 22 formed substantially in the center of the opening tab 2 is fixed to the center of the lid plate portion 11 that closes the upper opening C1 of the can main body C, and the lid plate portion 11 is opened. A substantially U-shaped opening piece 12 extending in the diametrical direction sandwiching the fixing piece 22 of the tab 2 is formed by the notch groove 13, and the tab 21 of the opening tab 2 is raised to push down the opening piece 12 by the pressing portion 24 to fix it. It is configured to be folded inside the can main body C in the vicinity of the base end 22a of the piece 22, and the knob 21 of the opening tab 2 is further lowered so that the opening piece 12 is pushed into the can main body C to the end. A can lid characterized by that. 6. The unsealing tab 2 comprises a pressing portion 24, which pushes the unsealing piece 12 between the approximate center in the width direction and one side edge 12a, on the base end 22a side of the fixing piece 22, and the unsealing piece 12.
Has a short projecting piece portion 25 integrally formed with the pressing portion 24 inside the other end edge 12b, and is provided at one end edge 12a of the unsealing piece 12 at the leading end side edge portion of the pressing portion 24. When the cut-out groove 26 is formed at the rear end side edge portion of the protruding piece portion 25 near the fixed piece 22 while the cut-out groove 26 is formed by protruding toward the fixed piece 22. Protrusion 2 which is the fulcrum of
The can lid according to claim 5, wherein 7 is projected toward the unsealing piece 12. 7. The opening piece 12 is provided with a concave projection 16 for locating a projection 27 so that the cut-out piece 26 of the opening tab 2 can push down one edge 12a of the opening piece 12 to cut the cut groove 13. The can lid according to claim 5, which is formed.