JP2000016425A - Simply openable can cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a simply openable can cover with an opening mechanism for opening securely and easily without touching it with a finger. SOLUTION: Two guide members 3 are provided in parallel to each other on the upper face of a cover panel 2. A slide member 4 supported slidably by the guide members 3 is provided, and a protrusion is formed on its lower face. A score line 5 is cut on the lower periphery of the slit member 4 of the cover panel 2 except a hinge section 7. An engaging section 6b with face inclined from the hinge section 7 side downwardly in the end side direction of the cover panel 2 is formed on the upper face of a recess 6a formed on an opening piece 6 forming a section encircled by a score line 6. The slide member 4 is slid from the end side of the cover panel 2 toward the hinge section 7 side direction to engage the protrusion with the engaging section 6b, and the opening piece 6 is pressed down to open the can cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening mechanism in which a score line is formed on a cover panel of a can lid with a hinge portion, and an opening piece surrounded by the score line is pushed down to perform an opening operation. More particularly, the present invention relates to a simple opening can lid having an improved opening mechanism.

[0002]

2. Description of the Related Art Conventionally, as a simple opening can lid of this kind,
For example, those shown in FIGS. 4 and 5 are known. Hereinafter, this conventional simple opening can lid will be described with reference to the drawings. Here, FIG. 4 is a plan view of a conventional simple opening can lid, and FIG. 5 is a bottom view thereof.

[0003] The simple opening can lid 10 has a pull tab 11 as an opening mechanism for performing an opening operation. That is,
A concave portion 12a provided across the center of the lid panel 12.
, A pull tab 11 is fixed via a rivet portion 13. This pull tab 11 has a rivet portion 1
3, a finger hook 11a and a tab nose 11b are provided on opposite sides.

[0004] A score line 14 is engraved on the tab nose 11b side of the concave portion 12a of the lid panel 12. In addition,
As shown in FIG. 5, the score line 14 is formed leaving a hinge portion 15 which becomes a hinge when opened. The portion surrounded by the score line 14 is the score line 14
To form an opening piece 16 which is pushed down by the breakage.

[0005] A recess 17 is provided on the upper surface of the concave portion 12a of the lid panel 12 near the finger hook 11a in order to make it easy to put a finger on the finger hook 11a. The dimple 18 supporting the lower surface of the finger hook 11a so that the finger hook 11a does not adhere to the upper surface of the lid panel 12.
Are provided on the upper surface of the concave portion 12 a of the lid panel 12.

[0006] The conventional simple opening can lid 10 having such a configuration is opened as follows. That is, when a finger is hooked on the finger hook portion 11a to raise the pull tab 11, the score line 14 is initially broken by the tab nose 11b due to the lever action using the rivet portion 13 as a fulcrum. Further, by pulling up the pull tab 11, the tab nose 11b pushes down the opening piece 16 using the hinge portion 15 as a hinge, and the tab nose 11b breaks along the score line 14 and is opened.

[0007]

However, the following problems have been pointed out in the conventional simple opening can lid as described above. That is, the gap between the finger hook portion 11a and the upper surface of the lid panel 12 is small, and it is difficult to put a finger. In order to make it easy to put a finger, a dimple 18 that supports the depression 17 and the lower surface of the finger hook 11a is provided, but there is a limit due to problems in strength and handling,
Completeness is hard to predict. In addition, women who stretch their nails and apply nail polish sometimes feel resistance to putting their fingers on them, and sometimes their nails break.

In addition, when the contents are to be drunk directly from the opening after the opening, the pull tab 11 is obstructed when it is in the upright state. Met.

Further, when the finger hook 11a is forcibly raised from an oblique direction, the force is not correctly concentrated on the tab nose 11b, and the pull tab 11 may be bent or torn, making it impossible to open.

[0010] In order to pull up the pull tab 11, a large force is required, and children and the like sometimes have difficulty in opening.

The present invention has been proposed in order to solve the above-mentioned problems of the prior art. The object of the present invention is to enable opening without putting a finger and opening the can by one operation. It is an object of the present invention to provide a simple opening can lid which is completed and allows the contents to be comfortably drunk directly from the opening.

It is another object of the present invention to provide a simple opening can lid provided with an opening mechanism capable of preventing unopening and opening reliably.

Another object of the present invention is to provide a simple opening can lid provided with an opening mechanism that can easily open with a small force.

[0014]

In order to achieve the above object, according to the first aspect of the present invention, a score line is formed on a lid panel having a hinge portion, and the score line is formed on the score line. In a simple opening can lid having an opening mechanism for performing an opening operation by pressing down an enclosed opening piece, the opening mechanism includes a guide member provided on an upper surface of the lid panel, and a guide member provided with the opening piece. A sliding member supported so as to be slidable upward, wherein the sliding member is slid above the opening piece from an end side of the lid panel toward the hinge section to push down the opening piece. It is characterized by being constituted so that it can be done.

By taking such measures, the simple opening can lid according to the present invention can be opened without putting a finger. In addition, the sliding member 1
The operation of opening the can by one operation and pushing back the tab in the upright state is unnecessary.

Further, since the slide member is slid by being guided by the guide member, the opening can be surely performed without the opening being erroneously disabled.

Here, "the sliding piece can be pushed down by sliding the sliding member above the opening piece from the end side of the lid panel toward the hinge side." In a state in which the sliding member slides above the opening piece from the end of the lid panel toward the hinge section, a state in which a force for pushing the opening piece downward acts and the opening piece can be pushed down. .

Here, in order to apply a force for pushing the opening piece downward, the opening piece can be slid while being pushed downward, but the structure described in claim 2 can be adopted.

That is, according to a second aspect of the present invention, in the simple opening can lid according to the first aspect, a concave portion is provided on the upper surface of the opening piece so as to cross the center thereof, and the upper surface of the concave portion is provided with the concave portion. An engagement portion having an inclined surface inclined downward from the hinge portion side toward the end portion side of the lid panel is provided, and the lower surface of the slide member above the recess is provided with the movement of the slide member. And a projection that can be engaged with the inclined surface of the engagement portion is provided.

Here, "can engage with the inclined surface of the engaging portion along with the movement of the slide member" means that the protrusion is formed on the inclined surface of the engaging portion while the slide member is sliding. Means that the user can be engaged by pushing the inclined surface in contact with the

By taking such measures, the opening operation can be performed with a relatively small force of sliding the slide member. That is, when the slide member is slid, the protrusion comes into contact with the inclined surface of the engagement portion.
Further, when the slide member is slid, the projection pushes the inclined surface, and this force acts as a force for pushing the opening piece downward, and an initial break occurs in the score line. Then, even after that, by sliding the slide member, the projection is pushed down while the engagement portion is engaged with the inclined surface of the engagement portion, so that the opening is opened.

According to a third aspect of the present invention, in the simple opening can lid according to the first or second aspect, a raised portion for applying a force for sliding the slide member is provided at an appropriate position on the upper surface of the slide member. Features.

By adopting such means, a force for sliding the slide member can be easily applied, and the opening operation can be easily performed.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. Here, FIG. 1 is a plan view of a simple opening can lid according to the present embodiment, FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG.
Is an enlarged vertical sectional view of a main part of FIG. 1, (A) is a closed state,
(B) shows a state in the middle of opening, and (C) shows an opening state.

In FIG. 1, a simple opening can lid 1 is schematically shown in FIG.
A cover panel 2, a guide member 3, a slide member 4,
A score line 5 and an opening piece 6 are provided.

That is, two guide members 3 are arranged on the upper surface of the cover panel 2 in parallel with each other. Rails 3a are provided on the side surfaces of the guide member 3 facing each other over the entire length. On the other hand, rail grooves 4 a are provided on both side surfaces of the slide member 4. And
As shown in FIG. 2, the rail 3a is fitted into the rail groove 4a so as to be slidable. Slide member 4
Is arranged so that its central axis line overlaps with the diameter line X of the cover panel 2, and is configured to be slidable in the axial direction.

Further, as shown in FIG.
On the top surface of the front end side (left side in the figure) and the rear end side (right side in the figure), raised portions 4b and 4b 'are provided. This is provided so that a force can be easily applied when the slide member 4 is slid. In the present embodiment, 2
Although the raised portion is provided at one place, it may be provided at one place, and the arrangement position can be appropriately selected.

Further, a substantially conical projection 4c having a smaller diameter toward the lower side is provided on the lower surface on the distal end side of the slide member 4. This has a function of pushing down the opening piece 6 by engaging with the opening piece 6 by coming into contact with an engaging portion 6b of the opening piece 6 described later.

On the other hand, a score line 5 is engraved around the lower part of the slide member 4 of the cover panel 2. The score line 5 is formed almost at the center of the lid panel 2 except for a hinge portion 7 which becomes a hinge when opened (see FIG. 1).

The portion surrounded by the score line 5 is the opening piece 6 which is pushed down by the break of the score line 5.
Is formed. A concave portion 6a is provided on the upper surface of the opening piece 6 so as to cross the center thereof. As shown in FIG. 3, an engaging portion 6b having an inclined surface s inclined downward from the hinge portion 7 toward the distal end (left side in the figure) is provided on the upper surface of the concave portion 6a. This engaging portion 6b
By engaging with the above-mentioned protrusion 4c, the opening piece 6 is pressed down.

The simple opening can lid 1 having the above-described structure.
Works as described below. First, a force is applied to the protrusion 4b or 4b 'of the slide member 4 to slide the slide member 4 in the direction of the arrow in FIG.

With the movement of the slide member 4, the protrusion 4
c comes into contact with the inclined surface s of the engaging portion 6a of the opening piece 6. When the slide member 4 is further slid, the protrusion 4
c, the inclined surface s is pushed, and this force acts as a force for pushing the opening piece 6 downward, and an initial break occurs in the score line 5. Subsequently, when the slide member 4 is slid, the inclined surface s is pushed by the protrusion 4c, and the opening piece 6 is moved to the hinge 7
Is pressed down as a hinge and opened.

At this time, as the protrusion 4c approaches the hinge 7, that is, as the distance between the point of action of the force (the contact point between the protrusion 4c and the inclined surface s) and the hinge 7 decreases, The opening piece 6 is pushed down greatly, and the opening is achieved (see FIGS. 3B and 3C). This completes the opening of the can,
There is no need to push the pull tab back to the lid panel as in the case of the conventional pull tab type.

The present invention is not limited to the above-described embodiment, but can be implemented with appropriate changes within the scope of the present invention. For example, the guide member 3, the slide member 4, and the engagement portion 6b
The thickness, shape, etc. of the processing process and can handling
It can be appropriately selected in consideration of the strength and the like.

[0035]

As described above, according to the present invention, the can can be opened without putting a finger, and the opening of the can is completed by one operation of sliding the slide member. The appearance is also smart.

Further, since the slide member slides while being guided by the guide member, it can be reliably opened without becoming impossible to open.

Further, the opening can be easily performed with a relatively small force of sliding the slide member.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of an embodiment of a simple opening can lid according to the present invention.

FIG. 2 is an enlarged sectional view taken along line AA of a main part of FIG.

3 is an enlarged longitudinal sectional view of a main part of FIG. 1, wherein (A) shows a closed state, (B) shows a state in the middle of opening, and (C) shows an opened state.

FIG. 4 is a plan view of a conventional simple opening can lid.

FIG. 5 is a bottom view of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Simple opening can lid 2 Lid panel 3 Guide member 3a Rail 4 Slide member 4a Rail groove 4b, 4b 'Raised part 4c Projection part 5 Score line 6 Opening piece 6a Depressed part 6b Engaging part 7 Hinge part s Inclined surface X diameter line 8

Claims (3)

[Claims] 1. A simple opening can lid having a hinge line formed on a cover panel and having an opening mechanism for performing an opening operation by pushing down an opening piece surrounded by the score line. A mechanism includes a guide member provided on an upper surface of the lid panel, and a slide member slidably supported above the opening piece on the guide member. A simple opening can lid characterized in that the opening piece can be pushed down by sliding the opening piece from the end side of the lid panel toward the hinge portion. 2. An upper surface of the opening piece is provided with a concave portion traversing the center thereof, and the upper surface of the concave portion is inclined downward from the hinge portion toward the end of the lid panel. An engagement portion having an inclined surface is provided, and a projection that can be engaged with the inclined surface of the engagement portion along with the movement of the slide member is provided on a lower surface of the slide member above the concave portion. The simple open can lid according to claim 1, wherein: 3. The simple open can lid according to claim 1, further comprising a raised portion for applying a force to slide the slide member at an appropriate position on the upper surface of the slide member.