JP3012047U - Can folding device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a can folding device. [Structure] As shown in FIG. 1, a can folding device according to the present invention is provided with notches on both side surfaces and upper and lower peripheral edges which are symmetrical with respect to the axis of the can body to form a folding groove, which is located in the middle of both folding grooves 1 and 1. Full-opening tabs 7 and 7 are arranged near the peripheral edges of the can lid 4 and the can bottom 5, and a predetermined width is left on the symmetrical side of the full-opening tabs 7 and 7 to form a connecting piece. Make a notch in contact with
2

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for folding an empty can with a bare hand, in which a can is provided with a groove on the lid and the bottom, and a can is formed on the can body and its upper and lower peripheral edges.

[0002]

[Prior art]

 Conventionally, there was no appropriate method for processing empty cans, except for using a dedicated “empty can crusher”. Since empty cans have poor commercial value and are not suitable for processing such as manually packing in boxes, they have often been thrown alongside roads, etc., except for being placed in a wastebasket. The invention for the disposal of cans was Japanese Patent Application No. Sho 62-179481 "Canned can with lid and bottom easily removed". It is made by using a material that memorizes a temperature and a flat plate that are tentatively set in a shape memory alloy to produce the joint between the can body, the can lid, and the can bottom by applying an external stress by the sheet metal bending method, and heating it. As a result, the external stress disappears and it is easily dismantled to reduce the volume.

[0003]

[Problems to be solved by the device]

 Among those described in the prior art, crushing an empty can was inconvenient to carry and was not practical enough to spread it. In addition, there was no practice to use it to crush empty cans for commercialization.

Therefore, although some are collected by public works and the like, not a few empty cans have been discarded as garbage. One of the reasons for this is that the empty cans are not suitable for transportation when they are in their original condition because of their large volume relative to their weight. As for beverage cans, the deposit method is administrated by the operators, but it remains an issue until it is generalized.

Regarding the constitution of Japanese Utility Model Application No. 62-179481, there is a heating process for the purpose of sterilization for filling canned food, and in order to dismantle the canned can after the heating step, the non-plasticity and heat resistance of the metal However, it was impossible to supply it at any time and place, because it required a high-temperature heat quantity suitable for it.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide a device that can easily fold an ordinary empty can with bare hands. Is what you are trying to do.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the can folding device according to the present invention is provided with a notch on both sides of the can body symmetrically with the axis thereof to form a folding groove, and a fully open tab is provided near the periphery of the can lid and the can bottom. The connecting piece is left on the symmetrical side, and a cutout is provided near the periphery to form a cutout groove.

[0008] The upper and lower edges of the can and the bleed grooves provided in the can body are provided on the outer periphery of the winding body and the can body corresponding to the rim.

In the case of a can whose bottom is integrated with the can body, it is preferable that the peripheral edge of the lower end has the same or similar diameter to the can body.

The drinking mouth and the drinking tab of the beverage can are provided on the symmetrical side of the fully opened tab, and the removal groove is provided in the vicinity of the peripheral portion of the drinking mouth.

It is preferable that the folding grooves provided on the upper and lower peripheral edges between the two folding grooves are equally spaced symmetrically with respect to the axis of the can body.

[0012]

[Action]

 For the can, pull the fully open tab to open the can lid and the can bottom. The can lid and bottom are connected to the top and bottom edges of the can body by connecting pieces. Next, the can lid and the can bottom are placed inside the can body, and both sides of the can body between the folding grooves and the upper and lower edges are pressed inward with both hands. Both sides and the upper and lower edges are double-folded with both folding grooves at both ends, and are flatly folded in a shape that holds the can lid and the can bottom.

[0013]

【Example】

 Embodiments will be described with reference to the drawings. In FIGS. 1 to 4, a cut is provided on a side surface symmetrical to the axis of the can body 8 to form the folding grooves 1 and 1, and the peripheral edges 9 of the can lid 4 and the can bottom 5 located between the folding grooves 1 and 1 are formed. , 9 near the full-open tabs 7, 7 are provided, the connecting pieces 3, 3 are left on the symmetrical side of the full-open tabs 7, 7, and the notch is provided by making a cut in contact with the inside of the peripheral edges 9, 9. 2 For cans having a diameter of the can lid 4 longer than the can body 8, the connecting piece 3 may not be provided, and the can lid 4 and the can bottom 5 may be removed and stacked in another can. When the connecting piece 3 is provided in the can, either the can lid or the can bottom 5 is folded inside the can body 8 and the other is folded outside the can body 8 to be folded.

In a can in which the can bottom 5 is integrated with the can body 8, the lower end peripheral edge 9 is formed to have the same diameter or a similar diameter to the can body.

In FIG. 5 and FIG. 6, a swallowing mouth and a swallowing tab 10 are provided on the symmetrical side of the full-opening tab 7, and the swallowing mouth and the peripheral edge 9 in the vicinity thereof are left as a connecting piece 3 to form the removal groove 2. It is provided.

In FIGS. 7 and 8, the folding grooves 1, 1 ... Are arranged symmetrically with respect to the axis of the can body 8 at the upper and lower peripheral edges 9, 9 between the folding grooves 1, 1 and at equal intervals. Is shown. The thickness of the peripheral edge is 5 times that of the can body when tightened by winding, and the hardness is large, but by providing multiple folding grooves, even small and junior high school students can fold it with bare hands. In the case of a square can, the flat folding groove 1 is on the line connecting the upper and lower peripheral edges 9 and 9 for the purpose of folding flatly. The fully open tab 7 and the connecting piece 3 are arranged at the corners.

[0017]

Effect of the Invention Since the present effect is configured as described above, it has the following effects.

In the can folding device according to claim 1, the can lid and the can bottom can be kept in a state of being tilted inside the can body without being separated from the can body by the connecting piece. By pressing in the axial direction, it can be folded flat even with bare hands. Since both folding grooves are on the bisector of the upper and lower edges and the outer circumference of the can body, the can body is bisected and both sides are flatly overlapped.

In the can folding device according to the second aspect of the present invention, the diameter of the lower end periphery is formed to be the same diameter or a similar diameter to the can body, so that the lower end edge is arranged on the same surface of the can body to facilitate flattening. Can be folded.

In the can folding device according to the third aspect, by providing the connecting piece on the side close to the drinking mouth, it is possible to achieve the effect of folding by the folding groove without hindering the use of the drinking mouth.

In the can folding device according to the fourth aspect, since the folding grooves are provided at the upper and lower edges of the folding groove, the both edges can be easily overlapped. By the way, if a fold groove is provided on both sides of the fold groove and on the quadrant between the lower edge rims using a round can as an example, from FIG. 7 and FIG. 8, t = r−x cos 22.5 ° = from x / r x = 0.93r ∴t = r−0.93r = 0.07r Width W of the peripheral overlap portion W = 2πr / 2 = 3.14r Therefore, the cross-sectional area s = 2 × t × W = 2 × 0.07r of the peripheral overlap portion. × 3.14r = 0.4396r ² On the other hand, the peripheral cross-sectional area of the can in the original state S = πr ² = 3.14r ^{2 From} this, the reduction ratio of the can due to folding is s / S = 0.4396r ² /3.14r ² = 0.14 That is, the empty can is reduced to 14% of the original size. In reality, the can lid and the bottom of the can are slightly bent, and a reduction in the reduction ratio cannot be denied if the limit of the force with bare hands is taken into consideration, but a reduction of 14%, or one-seventh, shows an approximate value. .

[Brief description of drawings]

FIG. 1 is a front view of a can having a fully-opened can lid and a fully-opened can bottom provided with connecting pieces.

FIG. 2 is a front view of the fully-opened can lid and the fully-opened can bottom folded down inside the can body.

FIG. 3 is a partial cross-sectional view showing winding of a can body and a peripheral edge thereof.

FIG. 4 is a partial cross-sectional view of the can body and the lower end periphery.

FIG. 5 is a plan view of a can lid provided with a swallow tab and a fully open tab.

FIG. 6 is a front partial cross-sectional view in which the swallow tab is opened and then the fully open tab is opened.

FIG. 7 is a plan view composition in which a plurality of folding grooves are arranged on a peripheral edge between both folding grooves.

FIG. 8 is a plan view of a folded structure in which a plurality of folding grooves are arranged on the periphery.

FIG. 9 is a perspective view of the conventional can crushing tool.

[Explanation of symbols]

 1 Folding Groove 2 Ditching Groove 3 Connecting Piece 4 Can Lid 5 Can Bottom 6a Drinking Lid 7 Fully Open Tab 8 Can Body 9 Periphery 10 Drinking Tab

Claims (4)

[Scope of utility model registration request] 1. A can lid 4 and a can bottom 5 in which notches are provided in both side surfaces which are symmetrical with respect to the axis of a can body 8 to form folding grooves 1 and 1 and full-open tabs 7 and 7 are located between the folding grooves 1 and 1. Of the can lid 4 and the can bottom 5 with a predetermined width left on the symmetrical side of the full-open tabs 7 and 7 to form the connecting pieces 3 and 3.
A device for folding a can which is provided with a notch in contact with the inner side and serves as the grooves 2 and 2. 2. The can folding device according to claim 1, wherein the can bottom 5 is integrated with the can body 8, and the lower end peripheral edge 9 is formed to have the same diameter or a similar diameter to the can body 8. 3. The swallowing mouth and the swallowing tab 10 are fully opened tabs 7.
The can folding device according to claim 1 or 2, wherein a groove 3 is provided on the symmetric side of the above and apart from the peripheral edge 9 close to the mouth. 4. The folding grooves 1, 1 ... Are provided symmetrically with respect to the axis of the can body 8 at the upper and lower peripheral edges 9, 9 between the folding grooves 1, 1 and at equal intervals. The can folding device described.