JP2003220497A - Metal can folding groove former - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metal can folding groove former which can easily form a folding groove on the side face of the metal can in order to make the metal can such as an aluminum can smaller by easy folding and crushing. <P>SOLUTION: A plurality of folding groove forming rods 18 are arranged in equal intervals inside a first cylinder part 12 and a second cylinder part 16 of the metal can folding groove former 10, a first locking part 18A of the folding groove forming rod 18 is inserted into a first locking hole 20 of the first cylinder part 12 in a loose fit state, and a second locking part 18B is inserted into a second locking hole 22 of the second cylinder part 16 in a loose fit state. Accordingly, when the second cylinder part 16 is rotated, a linear intermediate part 18C of the folding groove forming rod 18 is made so as to move in the axial center directions of the first cylinder part 12 and the second cylinder part 16 by further inclining of the folding groove forming rod 18. A plurality of support return supporting bodies 26 are arranged slantly inside the first cylinder part 12 and the second cylinder part 16. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal can fold groove forming device capable of easily forming a depressed fold groove on a side surface of a metal can before easily crushing a metal can such as an aluminum can into small pieces.

[0002]

2. Description of the Related Art Soft drinks, beer and the like are sold in large quantities in metal cans such as aluminum cans. For this reason, the amount of metal cans to be discarded becomes enormous, and if the metal cans are discarded as they are, the metal cans become bulky, which greatly hinders efficient disposal of the metal cans. By the way, a metal can such as the aluminum can can be crushed to a small size by forming an inclined fold groove on the side surface of the metal can and twisting the metal can to crush it in the vertical direction. However, it is difficult to properly form the inclined folding groove on the side surface of the metal can with fingers of the hand. For this reason, when an empty metal can is crushed into small pieces, it is difficult to crush it into small pieces without using a dedicated can crusher.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and a folding groove is easily formed on a side surface of a metal can in order to easily fold and reduce the size of a metal can such as an aluminum can. The present invention provides a metal can crease groove forming device.

[0004]

According to a first aspect of the invention, there is provided a cylindrical portion into which a metal can can be inserted, a side surface of the cylindrical portion, and a side surface of the metal can inserted into the cylindrical portion. And a folding groove forming body capable of forming a folding groove. According to a second aspect of the present invention, a first cylindrical portion into which a metal can can be inserted, a second cylindrical portion that is concentrically arranged with a gap from the first cylindrical portion, and can insert a metal can, Folding groove forming bodies that are arranged to be inclined inside the cylindrical portion and the second cylindrical portion, and a first locking member that is formed at one end of these folding groove forming bodies and that is attached to the first cylindrical portion in a loosely fitted state. Section, a second locking section formed at the other ends of the folded groove forming bodies and attached to the second cylindrical section in a loosely fitted state, one end fixed to the first cylindrical section, and the other end fixed to the first cylindrical section. And a support / return support body fixed to the second cylindrical portion. According to a third aspect of the present invention, a cylindrical first cylindrical portion into which the metal can can be inserted, and a second cylindrical portion that is concentrically arranged with a gap from the first cylindrical portion and into which the metal can can be inserted. A folded groove forming body disposed inside the first cylindrical portion and the second cylindrical portion so as to be inclined along the inner peripheral surface of the first cylindrical portion and the inner peripheral surface of the second cylindrical portion, and A first locking portion which is formed at one end of the folding groove forming body and is inserted into a first locking hole formed in the first cylindrical portion in a loosely fitted state;
A second locking portion which is formed at the other end of the folded groove forming body and is inserted into a second locking hole formed in the second cylindrical portion in a loosely fitted state, and one end portion of which is the first cylindrical portion. And a support / return support body fixed to the inner peripheral surface of the second cylindrical portion and fixed to the inner peripheral surface of the second cylindrical portion at the other end. According to a fourth aspect of the present invention, a cylindrical first cylindrical portion into which the metal can can be inserted, and a second cylindrical portion that is concentrically arranged with a gap from the first cylindrical portion and into which the metal can can be inserted. , The first
Inside the cylindrical portion and the second cylindrical portion, folding groove forming bodies that are arranged so as to be inclined along the inner peripheral surface of the first cylindrical portion and the inner peripheral surface of the second cylindrical portion, and these folding groove forming bodies. A first locking portion formed at one end of the first cylindrical portion and loosely fitted into a first locking hole formed in the first cylindrical portion, and the first locking portion formed at the other ends of the folding groove forming bodies. Two second engaging portions inserted in the second engaging holes formed in the two cylindrical portions in a loosely fitted state, and a plurality of second engaging portions formed on the surface of the first cylindrical portion facing the second cylindrical portion in the circumferential direction. The first notch portion, the second notch portion formed in plural on the first cylindrical portion facing surface of the second cylindrical portion along the circumferential direction, and the first notch portion and the corresponding second notch portion are arranged. And a supporting and returning support body having one end fixed to the first cutout and the other end fixed to the second cutout. The invention of claim 5 is characterized in that a pressing lid that can be inserted into the first cylindrical portion or the second cylindrical portion is provided. According to a sixth aspect of the present invention, an outer tubular portion, an inner tubular portion that can be inserted into the outer tubular portion and accommodates a metal can therein, and an upper end portion that is disposed inside the outer tubular portion and has the upper end portion is the outer tubular portion. A coil spring that abuts on the top surface of the inner tubular portion and a lower end of the coil spring abuts on the top surface of the inner tubular portion, and a plurality of coil springs are formed so as to be inclined at the side portions of the inner tubular portion and along the circumferential direction of the inner tubular portion. Notch openings, folding groove forming bodies accommodated in these notching openings and swingably around one end, and folding groove forming formed on one side of these folding groove forming bodies And an inclined portion that is formed on the other side of the folding groove forming body and that swings the folding groove forming body when the lower end surface of the outer tubular portion abuts. I am trying. According to a seventh aspect of the present invention, an outer tubular portion, an inner tubular portion that can be inserted into the outer tubular portion and accommodates a metal can therein, and an upper end portion that is disposed inside the outer tubular portion and has the upper end portion is the outer tubular portion. A coil spring that abuts on the top surface of the inner tubular portion and a lower end of the coil spring abuts on the top surface of the inner tubular portion, and a plurality of coil springs are formed so as to be inclined at the side portions of the inner tubular portion and along the circumferential direction of the inner tubular portion. Notch openings, folding groove forming bodies accommodated in these notching openings and swingably around one end, and folding groove forming formed on one side of these folding groove forming bodies Portion, an inclined portion formed on the other side of the folding groove forming body and rocking the folding groove forming body when the lower end surface of the outer cylindrical portion contacts, and an inner peripheral surface of the outer cylindrical portion. A first guide portion formed along the longitudinal direction of the outer tubular portion, and formed on the outer peripheral surface of the inner tubular portion along the longitudinal direction of the inner tubular portion. It is characterized by being obtained and a second guide portion that is guided by the first guide portion along with.

[0005]

1 to 9 show a first embodiment of a metal can folding groove forming device according to the present invention. As shown in FIG. 1 and FIG. 2, the first of the metal can folding groove forming device 10
The first cylindrical portion 12 as a cylindrical portion is formed in a cylindrical shape. In addition, the first cylindrical portion 12 and the gap 14 are sandwiched between the first
A second cylindrical portion 16 serving as a second cylindrical portion concentric with the cylindrical portion 12.
Is provided. The second cylindrical portion 16 has the same size and the same shape as the first cylindrical portion 12. The first cylindrical portion 1 is provided inside the first cylindrical portion 12 and the second cylindrical portion 16.
Four folding groove forming rods 18 as folding groove forming bodies along the inner peripheral surface 12A of 2 and the inner peripheral surface 16A of the second cylindrical portion 16.
Are arranged at equal intervals. These folding groove forming rods 18 are formed of metal rods and are provided in a state of being inclined with respect to the vertical direction of the metal can folding groove forming device 10 (vertical direction in FIG. 2). A first locking portion 18A is provided at one end of the folding groove forming rod 18.
Is bent and formed, and is inserted into the first locking hole 20 (see FIG. 3) formed in the first cylindrical portion 12 in a loosely fitted state. In addition, the other end of the folding groove forming rod 18 has a second
The locking portion 18B is formed by being bent, and is inserted into the second locking hole 22 (see FIG. 3) formed in the second cylindrical portion 16 in a loosely fitted state. The first locking portion 18A and the second
The locking portion 18B includes the first cylindrical portion 12 and the second cylindrical portion 16
Rubber stoppers 24 respectively arranged on the outer peripheral surfaces of the
Is fitted into the first locking hole 20 and the second locking hole 22 so as not to fall off. Therefore, the first locking portion 18A of the folding groove forming rod 18 is loosely fitted into the first locking hole 20 of the first cylindrical portion 12, and the second locking groove forming rod 18
The locking portion 18B is inserted into the second locking hole 22 of the second cylindrical portion 16 in a loosely fitted state, so that the second cylindrical portion 16 is inserted in the direction of arrow A in FIG.
It can be rotated in the circumferential direction. When the second cylindrical portion 16 is rotated in the circumferential direction of the arrow A in FIG. 1, the folding groove forming rod 18 is more inclined and the linear intermediate portion 18C of the folding groove forming rod 18 becomes the first cylindrical portion 12 and the second cylindrical portion. 1
6 is moved in the axial direction. Further, as a result, as shown in FIG.
It is adapted to approach the cylindrical portion 12. 1 and 2
As shown in FIG. 2, the inner peripheral surface 12 A of the first cylindrical portion 12 and the second cylindrical portion 12 are provided inside the first cylindrical portion 12 and the second cylindrical portion 16.
Two supporting and returning support bodies 26 formed of a flexible member such as a synthetic fiber along the inner peripheral surface 16A of the cylindrical portion 16 with respect to the vertical direction of the metal can folding groove forming device 10 (the vertical direction of FIG. 2). Are arranged so as to face each other in an inclined state. One end portion 26A of the support / return support rod 26 is fixed to the inner peripheral surface 12A of the first cylindrical portion 12 by appropriate means, and the other end portion 26B of the support / return support rod 26 is connected to the second cylindrical portion 16.
It is fixed to the inner peripheral surface 16A by appropriate means. The supporting and returning support bodies 26, 26 are connected to the first cylindrical portion 12 and the second cylindrical portion 12.
By arranging over the cylindrical portion 16, the gap 14 is maintained between the first cylindrical portion 12 and the second cylindrical portion 16 and the second cylindrical portion 16 is rotated in the circumferential direction of arrow A in FIG. When the rotational force is released, the second cylindrical portion 16 is rotated in the direction opposite to the circumferential direction of the arrow A in FIG. It has become. An aluminum can 28 can be inserted into the first cylindrical portion 12 and the second cylindrical portion 16 of the metal can folding groove forming device 10. As shown in FIG. 1, the metal can folding groove forming device 10 includes the aluminum can 2
8 the upper end surface 28A of 8 or the upper part 28B of the aluminum can 28
There is provided a pressing lid 30 that can cover the. The outer diameter of the pressing lid 30 is the same as that of the first cylindrical portion 12 and the second cylindrical portion 12.
It is formed smaller than the inner diameter of the cylindrical portion 16. The pressing lid 30 is formed in a bottomed cylindrical shape, and is provided with a can insertion portion 32 and a bottom surface portion 34.
Inside the can insertion portion 32 of the pressing lid body 30, four centering protrusion portions 36 are provided at equal intervals toward the center of the bottom surface portion 34. These centering protrusions 36 have centering inclined surfaces 36.
A and 36A are formed.

Next, the metal can folding groove forming device 1 of the first embodiment.
The action of 0 will be described. When the metal can fold groove forming device 10 is used to form the fold groove 38 on the side surface 28C of the empty aluminum can 28, the first fold groove is formed on a flat place as shown in FIG.
The metal can folding groove forming device 1 with the cylindrical portion 12 facing down
Put 0. Then, the aluminum can 28 is inserted into the first cylindrical portion 12 and the second cylindrical portion 16 of the metal can folding groove former 10 from above. Next, the pressing lid body 30 is inserted into the second cylindrical portion 16 so that the bottom surface portion 34 of the pressing lid body 30 rests on the upper end surface 28A of the aluminum can 28 in the second cylindrical portion 16. Then, the second cylindrical portion 16 is rotated in the circumferential direction of arrow A in FIG. 1 while holding the second cylindrical portion 16 and the pressing lid body 30. Then, as shown in FIG. 5, since the folding groove forming rod 18 is greatly inclined, the linear intermediate portion 18C and the linear intermediate portion 26C of the supporting and returning support body 26 are separated from the first cylindrical portion 12 and the second cylindrical portion 16. While moving in the axial direction, the second cylindrical portion 1
6 approaches the first cylindrical portion 12. Therefore, the side surface 28C of the aluminum can 28 is pressed by the linear intermediate portion 18C of the folding groove forming rod 18, and four folding grooves 38 are formed in an inclined shape on the side surface 28C of the aluminum can 28 (FIG. 7). Then, when the hand is released from the rotated second cylindrical portion 16, the second restoring force of the supporting and returning support body 26 causes the second
The cylindrical portion 16 rotates in the direction opposite to the circumferential direction of the arrow A in FIG. 1 and the second cylindrical portion 16 moves in the direction away from the first cylindrical portion 12, so that the metal can folding groove former 10 has the original shape (see FIG. 2). reference)
become. The metal can folding groove forming device 10 to the aluminum can 28
Then, as shown in FIG. 7, four folding grooves 38 are formed on the side surface 28C of the aluminum can 28 so as to be inclined with respect to the vertical direction. When the aluminum can 28 in this state is twisted and a vertical force is applied to the aluminum can 28, the aluminum can 28 can be crushed into a small size as shown in FIGS. 8 and 9. Therefore, if the metal can fold groove forming device 10 is used, the fold groove 38 can be easily formed in the aluminum can 28, and as a result, the aluminum can 28 can be folded small. This has the excellent effect that the capacity of the aluminum cans 28 discarded when the aluminum cans 28 are discarded can be reduced, and the aluminum cans 28 can be efficiently disposed of. Moreover, since the metal can fold groove forming device 10 has a simple structure and a small size, the product price can be suppressed and the storage space can be small, so that it can be easily purchased and stored even in a general household. When the aluminum can 28 is crushed, the upper part 28B of the twisted aluminum can 28 is inserted into the can inserting portion 32 of the pressing lid 30 to press the pressing lid 30 or step on it with a foot to crush it small. Of course good things.

When the aluminum can 28 is a vertically long can called a long can, the aluminum can 28 can be inserted into the first cylindrical portion 12 and the second cylindrical portion 16 of the metal can folding groove forming device 10. The upper portion 28B of the aluminum can 28 projects from the second cylindrical portion 16. Therefore, when the folding groove 38 is formed on the aluminum can 28 of such a long can, the pressing lid 30 is reversed and the upper portion 28B of the aluminum can 28 is pressed against the pressing lid 3.
0 of the can insertion portion 32, and while holding the second cylindrical portion 16 and the pressing lid body 30, the second cylindrical portion 16 is rotated in the circumferential direction of the arrow A in FIG. 1 and the pressing lid body 30 is pressed. If so, the folding groove 38 can be formed smoothly even in a long can. In this case, since four centering protrusions 36 are provided at equal intervals inside the can insertion portion 32 of the pressing lid 30, the aluminum can 28 has an inclined surface for centering of the centering protrusion 36. It can be positioned at the center of the pressing lid 30 by 36A and 36A.

Further, FIGS. 10 to 13 show a crush body 40 used when the aluminum can 28 is crushed into small pieces. The crush body 40 is an improvement of the pressing body 30. The same components as those of the pressing body 30 are designated by the same reference numerals and the description thereof will be omitted. The twisted and crushed aluminum can 28 (see FIG. 8) may be crushed by the hands, feet or the like as described above, but the use of the crush body 40 makes it possible to crush the aluminum can 28 more safely and easily. It is convenient because it can be done. As shown in FIGS. 10 and 11, a pin insertion hole 46 is formed in the central portion of the top surface portion 44 of the can insertion tube portion 42 of the crush body 40. Also, the top surface portion 4
An annular groove 48, which is annular in a plan view, is formed in the upper end surface 44A of No. 4 concentrically with the pin insertion hole 46. Further, a can insertion portion 43 into which the aluminum can 28 is inserted is provided in the can insertion cylinder portion 42. As shown in FIG. 11, inside the can insertion portion 43, centering inclined surfaces 36A,
36A is formed so that the centering protrusion 36 faces toward the center.
It is provided individually. On the upper end surface 44A of the top surface portion 44, a disc portion 50 having the same outer diameter dimension as the can insertion cylinder portion 42 is placed. The bottom surface 50 of this disc portion 50
In the center of A, a pin 52 is inserted into the pin insertion hole 46.
Is projected. A plurality of bearing receiving holes 54 (six in the embodiment) are radially formed on the bottom surface 50A. These bearing receiving holes 54 are formed at positions corresponding to the annular groove 48, and the bearing receiving holes 5
4, a bearing 56 is housed so as to project without falling. Therefore, the top surface portion 44 of the can insertion tube portion 42
When the disk portion 50 is placed on the pin 52, the pin 52 is inserted into the pin insertion hole 46 and the protruding portion of the bearing 56 is housed in the annular groove 48. Although the pin 52 is rotatably inserted into the pin insertion hole 46, the pin 52 can be pulled even if the disk portion 50 is pulled by an appropriate means.
Does not come out of the pin insertion hole 46. Although not shown, fine irregularities or mesh-shaped concave portions may be formed on the upper end surface of the disc portion 50 as a slip stopper. Aluminum can 2 twisted using the crush body 40
In the case of crushing 8 smaller, the aluminum can 28 twisted as shown in FIG. 12 is covered with the crush body 40. Then, when the crush body 40 is pressed, the aluminum can 28 is crushed into small pieces due to the pressing force.
However, since it slightly rotates due to the pressing force, the can insertion tube portion 42 also slightly rotates together with the upper portion 28B of the aluminum can 28. However, since the bearing 56 is interposed between the pressed disk part 50 and the can insertion tube part 42, the disk part 50 does not rotate, and therefore the disk part 50 is easily pushed. Further, since the aluminum can 28 is inserted into the can inserting portion 43 of the can inserting cylinder 42 and is crushed while being centered by the centering inclined surfaces 36A, 36A, it does not bend laterally. Can be crushed small. Moreover, the aluminum can 2
Since 8 is crushed in a state where it is inserted in the can inserting portion 43 of the can inserting cylinder portion 42, it can be crushed in a state where most of the aluminum can 28 is covered.
Can be crushed small. It should be noted that, as shown in FIG. 13, the length dimension of the can insertion tube portion 42 of the crush body 40 is increased, and the shape of the centering protrusion 36 formed on the can insertion tube portion 42 is shown in FIG. With such a shape, the shoulder 58A of the PET bottle-shaped aluminum can 58 fits the centering inclined surfaces 36A, 36A of the centering projection 36 to easily crush the PET bottle-shaped aluminum can 58. can do.

FIGS. 14 and 15 show a second embodiment of the metal can folding groove forming device according to the present invention. The first
The same components as those of the metal can folding groove forming device 10 of the embodiment are designated by the same reference numerals, and the description thereof will be omitted. A plurality of inclined first notches 62 are formed along the circumferential direction on the second cylindrical portion facing surface 12A of the first cylindrical portion 12 of the metal can folding groove former 60 of the second embodiment. In addition, a plurality of inclined second cutouts 64 are also formed in the first cylindrical portion facing surface 16A of the second cylindrical portion 16 along the circumferential direction. As shown in FIG. 14, a plurality of first cutouts 62 and second cutouts 64 are formed in pairs so as to correspond to each other in an inclined shape. The supporting and returning support body 26 is arranged in an inclined manner in the corresponding first notch portion 62 and second notch portion 64.
One end portion 26A of the first cutout portion 62 is fixed to the corner portion 62A of the first cutout portion 62, and the other end portion 26B of the second cutout portion 64 has a corner portion 64A.
It is fixed to A. Therefore, when the folding groove 38 is formed on the aluminum can 28 using the metal can folding groove forming device 60, the second cylindrical portion 16 is rotated in the direction of arrow A in FIG.
Even if the cylindrical portion 16 is brought close to the first cylindrical portion 12, as shown in FIG. 15, the support / return support body 26 has the second cylindrical portion facing surface 12A of the first cylindrical portion 12 and the first cylindrical portion 16 of the second cylindrical portion 16.
It is designed not to be sandwiched by the cylindrical portion facing surface 16A. In the metal can folding groove former 60, the first cylindrical portion 12 is provided with a first notch portion 62 and the second cylindrical portion 16 is provided with a second notch portion 64.
Since the support return support body 26 is provided in the first cutout portion 62 and the second cutout portion 64, it is not necessary to provide the support return support body 26 inside the first cylindrical portion 12 and the second cylindrical portion 16. Good. The rest of the configuration, action, and effect are the same as those of the metal can folding groove forming device 10 of the first embodiment, and therefore their explanations are omitted.

16 to 18 show a third embodiment of the metal can fold groove forming device according to the present invention. The same components as those of the metal can folding groove forming device 10 of the first embodiment are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 16, the outer cylinder portion 72 of the metal can folding groove forming device 70 of the third embodiment.
Four guide grooves 74 as first guide portions are carved in the inner peripheral surface of the outer cylinder portion 72 in the longitudinal direction at equal intervals.
A coil spring 76 is housed inside the outer tubular portion 72, and one end portion 76A of the coil spring 76 is attached to an inner surface of a top surface 78 of the outer tubular portion 72 by appropriate means. An inner cylinder portion 80, which accommodates the aluminum can 28 in an inserted state, is inserted into the outer cylinder portion 72. On the side portion 80A of the inner tubular portion 80, four guide protrusions 82 as second guide portions that enter the guide groove 74 in the longitudinal direction of the inner tubular portion 80 are provided at equal intervals. Therefore, the inner cylinder portion 80 is regularly arranged in the outer cylinder portion 7.
2 and the top surface 84 of the inner tubular portion 80 can be inserted.
Is in contact with the other end 76B of the coil spring 76. A coil spring corresponding groove 84A corresponding to the other end portion 76B of the coil spring 76 is formed on the top surface 84. Further, a plurality of cutout openings 86 that are inclined with respect to the longitudinal direction of the inner tubular portion 80 are formed in the side portion 80A of the inner tubular portion 80 in the circumferential direction of the inner tubular portion 80. A folding groove forming piece 88 serving as a folding groove forming body is accommodated in each of the notch openings 86. These folding groove forming pieces 88 are made of metal, and pivot support projections 90, 90 project from one end of the folding groove forming pieces 88. These pivot support projections 90, 90 are accommodated in pivot support projection storage portions 92, 92 formed at one end of the cutout opening 86, whereby the folding groove forming piece 88 swings about one end. The inner cylindrical portion 80 can be inserted through the notch opening portion 86. A flat groove forming portion 94 is formed on one side of the folding groove forming piece 88, and the groove forming portion 94 presses the side surface of the aluminum can 28 to form a plurality of inclined folding grooves 38 on the aluminum can 28. It has become so. On the other side of the folding groove forming piece 88, a first inclined side 96A
And an outer cylinder pressing inclined portion 96 including the second inclined side 96B. The outer cylindrical portion 72 is provided on the first inclined side 96A.
When the lower end surface 72A of the inner peripheral portion 8 abuts, the folded groove forming piece 88 swings around the pivotal projection 90 and the inner cylindrical portion 8
The folding groove 38 is formed in the aluminum can 28 which is inserted into the inner cylinder portion 80 of the aluminum can 28. Also,
A swing prevention protrusion 97 is formed on the second inclined side 96B to prevent the folded groove forming piece 88 from swinging more than a certain amount. Side portion 8 of the inner tubular portion 80
A plurality of stoppers 98 are provided in the circumferential direction at 0A, and the lower end surface 72A of the outer tubular portion 72 abuts on the stopper 98, so that the inner tubular portion 80 is further extended as shown in FIG. It is designed to prevent it from being inserted.

When the metal can folding groove forming device 70 of the third embodiment is used to form the folding groove 38 in the aluminum can 28, the aluminum can 28 is placed and the inner cylinder portion 80 is covered. Then, the guide groove 74 of the outer tubular portion 72 and the guide protrusion 82 of the inner tubular portion 80.
The outer cylinder portion 72 is covered with the inner cylinder portion 80 as shown in FIG. When the outer tubular portion 72 is pressed toward the inner tubular portion 80 against the biasing force of the coil spring 76, the lower end surface 72A of the outer tubular portion 72 is pivotally attached to the inner tubular portion 80. The bending groove forming piece 88 abuts on the first inclined side 96A of the pressing inclined portion 96 of the forming piece 88, whereby the folding groove forming piece 88 swings, the folding groove forming piece 88 enters the inner tubular portion 80, and the folding groove forming piece 88 Groove forming portion 94 is aluminum can 28
By pressing the side surface of the aluminum can 28, a plurality of inclined folding grooves 38 are formed in the aluminum can 28. Since the folding groove forming piece 88 is provided with the rocking preventing projection 97, when the rocking preventing projection 97 comes into contact with the side portion 80A of the inner cylindrical portion 80, the rocking preventing projection 97 is prevented from further rocking. . Then, the outer cylinder portion 7
When the lower end surface 72A of 2 comes into contact with the stopper 98, the pressing of the outer cylinder portion 72 is released. Then, the coil spring 7
The outer cylinder 72 is moved in the direction away from the inner cylinder 80 by the urging force of 6. Therefore, when the taken out aluminum can 28 is twisted and a vertical force is applied to the aluminum can 28, the aluminum can 28 can be crushed small. Of course, the aluminum can 28 may be crushed more safely and easily by using the crush body 40. Note that other configurations, operations, and effects are the same as those of the metal can folding groove forming device 10 of the first embodiment.
Since it is the same as, the description thereof will be omitted.

In the first and second embodiments, one end of the folding groove forming rod 18 is bent to form the first engaging portion 18A.
The first locking portion 18A and the second locking portion 18B are not limited to this, and one end of the folding groove forming rod 18 is formed, for example. Needless to say, the first locking portion 18A and the second locking portion 18B may be provided by providing projections inserted in the first locking hole 20 and the second locking hole 22 in a loosely fitted state at the other end, respectively. Is. Also,
In the first and second embodiments, the intermediate portion of the folding groove forming rod 18 is the linear intermediate portion 18C, but the intermediate portion of the folding groove forming rod 18 is not limited to the linear shape. Instead, for example, the middle portion of the folding groove forming rod 18 may be formed in a cross shape, or a bent portion or the like may be formed in the middle portion of the folding groove forming rod 18. Further, in the third embodiment, the groove forming portion 94 of the inset folding groove forming piece 88 is shown to be linear, but the groove forming portion 9 of the inset folding groove forming piece 88 is shown.
4 is not limited to a linear shape, for example, the folding groove forming piece 88 is formed in a cross shape, or the groove forming portion 94 is formed in a cross shape by forming a bent portion or the like, or the bent portion or the like is formed. Of course, it may be formed.

In the embodiment, the aluminum can 28 is taken as an example of the metal can for forming the folding groove, but it goes without saying that the metal can is not limited to the aluminum can. Further, in the embodiment, the cylindrical aluminum can 28 is used as an example of the metal can for forming the folding groove, but the metal can is not limited to the cylindrical metal can and may be, for example, a rectangular tubular metal can. Of course.

[0014]

Since the metal can folding groove forming device of the present invention can easily form the folding groove on the side surface of the metal can, even a weak person can easily and quickly fold the metal can into small pieces. As well as being able to easily fold the metal can into small pieces, the capacity of the metal can that is discarded when discarding the metal can can be reduced, and the excellent effect that the metal can can be disposed of efficiently Have. Further, since the metal can fold groove forming device of the present invention has a simple structure and a small size, the product price can be suppressed and the storage space can be small, so that it can be easily purchased and stored even in a general household. It has an excellent effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a metal can folding groove forming device according to a first embodiment.

FIG. 2 is a side view of the metal can folding groove forming device according to the first embodiment.

FIG. 3 is a vertical cross-sectional view of the metal can folding groove forming device according to the first embodiment.

FIG. 4 is a plan view of the metal can folding groove forming device according to the first embodiment.

FIG. 5 is a side view showing a usage state of the metal can folding groove forming device of the first embodiment.

FIG. 6 is a plan view showing a usage state of the metal can folding groove forming device of the first embodiment.

FIG. 7 is a perspective view of an aluminum can in which a folding groove is formed by the metal can folding groove forming device of the first embodiment.

FIG. 8 is a state view of folding an aluminum can having a folding groove formed by the metal can folding groove forming device of the first embodiment.

FIG. 9 is a view showing a state where an aluminum can having a folding groove formed by the metal can folding groove forming device of the first embodiment is folded into small pieces.

FIG. 10 is an exploded perspective view of a crush body used for folding an aluminum can into small pieces.

FIG. 11 is a vertical cross-sectional view of a crush body used when an aluminum can is folded into small pieces.

FIG. 12 is a usage state diagram of a crush body used when the aluminum can is folded into small pieces.

FIG. 13 is a vertical cross-sectional view of a crush body of another modified example used when the aluminum can is folded into small pieces.

FIG. 14 is a perspective view of a metal can folding groove forming device according to a second embodiment.

FIG. 15 is an explanatory view of using the metal can folding groove forming device according to the second embodiment.

FIG. 16 is an exploded perspective view of a metal can folding groove forming device according to a third embodiment.

FIG. 17 is a perspective view showing a usage state of the metal can folding groove forming device of the third embodiment.

FIG. 18 is a perspective view showing a usage state of the metal can folding groove forming device of the third embodiment.

[Explanation of symbols]

10 Metal can folding groove forming machine 12 First cylindrical part 14 Gap 16 Second cylindrical part 18 Fold groove forming rod 18A First locking part 18B Second locking part 20 First locking hole 22 Second locking hole 26 Support return support 26A One end 26B The other end

Claims (7)

[Claims] 1. A cylindrical portion into which a metal can can be inserted, and a fold groove that can be formed on the side surface of the cylindrical portion and can form an inclined fold groove on the side surface of the metal can inserted into the cylindrical portion. A metal can folding groove forming device, comprising: a body and a body. 2. A first cylindrical portion into which a metal can can be inserted, a second cylindrical portion which is concentrically arranged with a gap from the first cylindrical portion and into which a metal can can be inserted, and the first cylindrical portion. And the second
Folding groove forming bodies that are arranged to be inclined inside the cylindrical portion, a first locking portion that is formed at one end of these folding groove forming bodies and is attached to the first cylindrical portion in a loosely fitted state, and these folding portions. A second locking portion formed at the other end of the groove forming body and attached to the second cylindrical portion in a loosely fitted state; and one end fixed to the first cylindrical portion and the other end to the second cylindrical portion. A metal can folding groove forming device, comprising: a supporting and returning support body that is fixed. 3. A cylindrical first cylindrical portion into which the metal can can be inserted; a second cylindrical portion which is concentrically arranged with a gap from the first cylindrical portion and into which the metal can can be inserted; First
Inside the cylindrical portion and the second cylindrical portion, folding groove forming bodies that are arranged so as to be inclined along the inner peripheral surface of the first cylindrical portion and the inner peripheral surface of the second cylindrical portion, and these folding groove forming bodies. A first locking portion formed at one end of the first cylindrical portion and loosely fitted into a first locking hole formed in the first cylindrical portion, and the first locking portion formed at the other ends of the folding groove forming bodies. A second locking portion inserted in a second locking hole formed in the two cylindrical portions in a loosely fitted state, one end fixed to the inner peripheral surface of the first cylindrical portion, and the other end the second locking portion. A metal can folding groove forming device, comprising: a supporting and returning support body fixed to an inner peripheral surface of a cylindrical portion. 4. A cylindrical first cylindrical portion into which a metal can can be inserted; a second cylindrical portion which is concentrically arranged with a gap from the first cylindrical portion and into which the metal can can be inserted; First
Inside the cylindrical portion and the second cylindrical portion, folding groove forming bodies that are arranged so as to be inclined along the inner peripheral surface of the first cylindrical portion and the inner peripheral surface of the second cylindrical portion, and these folding groove forming bodies. A first locking portion formed at one end of the first cylindrical portion and loosely fitted into a first locking hole formed in the first cylindrical portion, and the first locking portion formed at the other ends of the folding groove forming bodies. Two second engaging portions inserted in the second engaging holes formed in the two cylindrical portions in a loosely fitted state, and a plurality of second engaging portions formed on the surface of the first cylindrical portion facing the second cylindrical portion in the circumferential direction. The first notch portion, the second notch portion formed in plural on the first cylindrical portion facing surface of the second cylindrical portion along the circumferential direction, and the first notch portion and the corresponding second notch portion are arranged. And a supporting and returning support body having one end fixed to the first notch and the other end fixed to the second notch. 5. A pressing lid that can be inserted into the first cylindrical portion or the second cylindrical portion is provided.
The metal can folding groove forming device according to claim 3 or 4. 6. An outer cylinder part, an inner cylinder part that can be inserted into the outer cylinder part and can accommodate a metal can inside the outer cylinder part, and an upper end portion provided inside the outer cylinder part and having an upper end portion of the outer cylinder part. A coil spring that abuts against the surface and a lower end of which abuts against the top surface of the inner tubular portion, and a plurality of notched openings that are formed to be inclined to the side portion of the inner tubular portion and that are formed along the circumferential direction of the inner tubular portion. A folded groove forming body that is accommodated in the cutout opening and is swingable around one end, and a folded groove forming portion formed on one side of the folded groove forming body. An inclined portion that is formed on the other side of the folding groove forming body and that swings the folding groove forming body when the lower end surface of the outer tubular portion abuts. Metal can folding groove forming machine. 7. An outer cylinder portion, an inner cylinder portion that can be inserted into the outer cylinder portion and can accommodate a metal can therein, and an upper end portion that is disposed inside the outer cylinder portion and has an upper end portion of the outer cylinder portion. A coil spring that abuts against the surface and a lower end of which abuts against the top surface of the inner tubular portion, and a plurality of notched openings that are formed to be inclined to the side portion of the inner tubular portion and that are formed along the circumferential direction of the inner tubular portion. A folded groove forming body that is accommodated in the cutout opening and is swingable around one end, and a folded groove forming portion formed on one side of the folded groove forming body. An inclined portion that is formed on the other side of the folding groove forming body and that swings the folding groove forming body when the lower end surface of the outer tubular portion abuts, and an outer peripheral surface on the inner peripheral surface of the outer tubular portion. First formed along the longitudinal direction of the tubular portion
A guide part and a second guide part formed on the outer peripheral surface of the inner cylinder part along the longitudinal direction of the inner cylinder part and guided by the first guide part.
A metal can folding groove forming device, comprising: a guide portion.