JP2002254391A - Plastic bottle cutting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new plastic bottle cutting tool capable of easily cutting and removing a cap attachment opening and a wrapping film from a used PET bottle. SOLUTION: This plastic bottle cutting tool is provided with an annular main body having an opening capable of having the cap attachment opening of the bottle inserted in formed in a center position, a pair of operation plates pivotally supported at each one end part symmetrically with respect to the opening and rotatable in parallel with the main body, a spring energizing a pair of the operation plates in a direction isolating another end parts of the operation plates from the opening, and a cutting edge projecting from another end parts of the operation plates toward the opening. The cutting edge does not project into an inside of a circumference edge of the opening and another end parts of a pair of the operation plates project out from a circumference edge of the main body by a desired width when the tool is not used. Another end parts of a pair of the operation plates are pressed in toward the circumference edge of the main body against energizing force of the spring to make the cutting edge project into the inside of the circumference edge of the opening when the tool is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic bottle cutting tool, and more particularly, to a method for recovering a used PET bottle and reusing the same, using a lid mounting port or an exterior film made of a foreign material. The present invention relates to a cutting tool used for cutting and removing from a PET bottle main body.

[0002]

2. Description of the Related Art Conventionally, plastic bottles have been widely used instead of glass bottles as containers for beverages and the like. In particular, plastic bottles which are hard, hard to deform, transparent and light in weight have recently been used to reduce logistics costs. It has been used in a large amount in various fields. On the other hand, there is a need to reduce waste to prevent environmental pollution and strengthen waste recycling for effective use of resources.
From this point of view, PET bottles are essentially made of PET resin that is hardly deteriorated, and it is relatively easy to collect and use them as recycled materials and reuse them.

However, in the case of ordinary PET bottles, the lid mounting opening is made of a different kind of resin, and a cover film made of a foreign material is coated in order to reinforce the bottle or display the name of the contents and the like. I'm wearing it. Therefore, even if an attempt is made to separate the PET resin from the used PET bottle into a recycled material, the step of separating and removing the above-mentioned foreign material portion from the collected bottle is difficult to mechanize and is not economically attractive. There was no proper method other than manual separation and collection. Therefore, bottles for which foreign material portions could not be separated manually had to be disposed of as waste.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention can be easily used by ordinary consumers in order to promote the collection and reuse of used PET bottles. An object of the present invention is to provide a novel plastic bottle cutting treatment tool that can be cut and separated and removed.

[0005]

SUMMARY OF THE INVENTION A plastic bottle cutting tool capable of achieving the above object of the present invention comprises:
A main body made of an annular plate formed at the center with an opening through which the lid mounting opening of the bottle can be inserted, and one end pivotally supported at an axially symmetric position with respect to the opening and rotatable in parallel with the main body A pair of operating plates, a spring for urging the pair of operating plates in a direction in which the other end is separated from the opening, and a cutting blade protruding from the other end of the operating plate toward the opening. When not in use, the cutting blade does not protrude inward from the peripheral edge of the opening, and the other ends of the pair of operating plates protrude outward from the peripheral edge of the main body by a desired width. When the other end of the operating plate is sometimes pushed toward the periphery of the main body against the urging force of the spring, the cutting blade is configured to protrude inward from the periphery of the opening. It is assumed that.

In the plastic bottle cutting tool of the present invention, the pair of operating plates and the spring are provided on one side of the main body, and at least the pair of operating plates and the spring are provided. When the cover is provided and has a cover having an outer shape substantially equal to that of the main body, there is an advantage that safety is greatly improved and handling is extremely easy.

Further, in the cutting tool for plastic bottles according to the present invention, a cut portion is provided in a part of the outer periphery of the main body or a part of the outer periphery of the lid so as not to be directed to the opening. A sharp wedge-shaped projection is formed on the edge, and a cutting blade is provided on the inner edge of the wedge-shaped projection so that the wedge-shaped projection can be inserted into a gap between the bottle and the exterior film. It can be cut off and removed from the bottle.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a plastic bottle cutting tool according to an embodiment of the present invention. FIG. 1 shows the internal structure of the plastic bottle cutting tool of the present invention. Reference numeral 1 denotes a main body formed of an annular plate, and an opening 1 a is formed at the center of the main body 1. The opening 1a has a diameter such that a female screw cap for sealing the neck of the plastic bottle, that is, a female screw cap for sealing the mouth of the bottle can be easily inserted through a cap mounting port provided with a male screw. Is what it is.

A pair of support shafts 1b and 1b are provided at a position axially symmetric with respect to the opening 1a of the main body 1 so as to project perpendicularly to the surface of the main body 1. Operating plates 2 and 2 each having a pressure receiving portion 2a protruding outward.
Is supported so as to be rotatable at one end 2b. Therefore, when these operation plates 2 rotate around the support shaft 1b, they can rotate in a posture parallel to the main body 1.

The pair of operating plates 2 are provided axially symmetrically with respect to the center of the opening 1a so that the pressure receiving portions 2a face each other with the pressure receiving portion 2a facing outward with the opening 1a therebetween. The springs 3a and 3b extend in such a direction that the other end 2c farther from the support shaft 1b is farther from the opening 1a.
Powered by The spring 3 has one end coupled to a part of the main body 1 and the other end coupled to the other end 2c of the operating plate 2 and attached in a compressed state. Without being limited to this, for example, a coil spring wound around the support shaft 1b as shown in FIG. 4 can be used.

When the operating plates 2, 2 urged by the spring 3 are not used, that is, when no external force is applied, the respective pressure receiving portions 2 a project outward from the outer periphery of the main body 1. In this state, it is locked by a locking projection (not shown) provided on the main body 1, and is configured not to rotate outward any more. Therefore, the pair of pressure receiving portions 2a, 2a project axially symmetrically outward from the outer periphery of the main body 1 when not in use, and the pressure receiving portions 2a when in use.
When the main body 1 is gripped together with the main body 1a and 2a, the pressure receiving portions 2a and 2a are simultaneously pushed toward the center of the opening 1a.

Further, the other end 2 of the pair of operating plates 2 and 2
A cutting blade 4 for cutting the wall of the bottle protrudes toward the opening 1a at the inner side edge of the opening c. It is configured to stay outside. When the body 1 is gripped as described above and the pressure receiving portion 2a is pushed inward against the urging force of the spring 3, the cutting edge of the cutting blade 4 starts opening 1a.
Projecting inward from the periphery of.

Although the plastic bottle cutting treatment tool of the present invention has the above internal structure, if the internal structure is exposed, it is inconvenient to handle and has a problem in safety. As shown in FIG. 2, it is preferable to provide a lid 5 having an outer shape substantially the same as that of the main body 1 so as to accommodate the internal structure between the main body 1 and the lid 5. In the plastic bottle cutting tool of the present invention configured as described above, at least one of the outer peripheral edges of the main body 1 and the lid 5 closes the gap between the main body 1 and the lid 5 and ensures the connection. It is preferable that the main body 1 and the lid 5 are fixed by using a connecting means (not shown), for example, a screw or the like, in a standing manner.

Further, in the plastic bottle cutting tool of the present invention, an acute angle is formed on a part of the outer periphery of the main body 1 or a part of the outer periphery of the lid 5 in a direction not toward the opening 1a or 5a, that is, in a direction intersecting the radius. By providing the notch 1c or 5b, a sharp wedge-like projection 1d or 5c is formed on the outer edge of the notch 1c or 5b. And
A cutting edge 1e or 5d is provided on the inner edge of the wedge-shaped projection 1d or 5c. Here, wedge-shaped protrusions 1d or 5c
Is thin, so that it can be easily inserted into the gap between the bottle and its exterior film.

Using the plastic bottle cutting processing tool of the present invention configured as described above, a processing operation for converting a used PET bottle into a form that can be used as a recycled resource is described below.
The procedure will be described with reference to FIGS. 3 and 5, and the procedure is as follows.

For the used PET bottle B, the lid is first removed, and a lid mounting port C with an external thread formed of a resin different from the PET resin constituting the bottle body B1, for example, polyolefin resin, is used according to the present invention. It is inserted into the opening 1a of the plastic bottle cutting processing tool A. Then, after the plastic bottle cutting tool A is positioned at the bottle neck B2, the pair of pressure receiving portions 2a, 2a projecting axially symmetrically from the outer periphery of the main body 1 are gripped by the palm and pushed into the main body 1. I do. Then, the cutting edge of the cutting blade 4 protrudes inward from the peripheral edge of the opening 1a and pierces the bottle neck B2.
Therefore, when the bottle B is rotated while holding the main body 1 with the palm, the cutting blade 4 cuts around the bottle neck B2 and the lid mounting opening C is easily separated from the bottle main body B1.

The bottle body B1 has an outer film D for reinforcing the bottle and displaying the name of the contents and the like.
Has been deposited. Since the exterior film D is often formed of a different material from the bottle body B1, it is necessary to remove the exterior film D in order to collect high-quality recycled materials. Therefore, a wedge-shaped projection 1 provided on the outer periphery of the plastic bottle cutting processing tool A
When d or 5c is inserted between the bottle body B1 and the exterior film D, the cutting blade 1e or 5d provided on the inner edge of the wedge-shaped projection 1d or 5c cuts the exterior film D. As a result, the exterior film D peels off from the outer surface of the bottle and is easily removed. Exterior film D
May be removed before the lid mounting port C is separated.

[0018]

The plastic bottle cutting treatment tool of the present invention has a simple structure and is easy to handle, and can be used for a portion made of a different material contained in a PET bottle or the like, that is, for a lid mounting opening or an exterior film. It can be cut or separated and removed very easily, which makes it possible to economically recover high-quality recycled materials from used plastic bottles, especially PET bottles, greatly increasing the burden on consumers of separating and collecting resources. And contribute to the construction of a recycling-based society.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an internal structure of a plastic bottle cutting processing tool of the present invention.

FIG. 2 is a top view of a lid of the plastic bottle cutting processing tool of the present invention.

FIG. 3 is an explanatory diagram showing a state in which a neck of a bottle is cut using the plastic bottle cutting tool of the present invention.

FIG. 4 is an explanatory view showing the internal structure of another example of the plastic bottle cutting processing tool of the present invention.

FIG. 5 is an explanatory diagram showing a state in which an exterior film is removed from a bottle using the plastic bottle cutting processing tool of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 1a Opening 1b Support shaft 1c Cut part 1d Wedge-shaped protrusion 1e Cutting blade 2 Working plate 2a Pressure receiving part 2b One end 2c The other end 3 Spring 4 Cutting blade 5 Lid 5a Opening 5b Cut part 5c Wedge-shaped protrusion 5d Cutting blade A Plastic bottle cutting tool B PET bottle B1 Bottle body B2 Bottle neck C Lid mounting port D Exterior film

Claims (3)

[Claims] 1. A main body made of an annular plate having an opening formed at a center position through which a lid mounting opening of a bottle can be inserted, and one end of each main body being axially symmetric with respect to the opening and being parallel to the main body. A pair of operating plates rotatable to each other, a spring for urging the pair of operating plates in a direction in which the other end is separated from the opening, and a projection protruding from the other end of the operating plate toward the opening. When not in use, the cutting blade does not protrude inward from the peripheral edge of the opening, and the other end of the pair of operating plates extends a desired width outward from the peripheral edge of the main body. When the other end of the operating plate is pushed toward the periphery of the main body against the urging force of the spring during use, the cutting blade projects inward from the periphery of the opening. A plastic bottle cutting processing tool, characterized in that: 2. A pair of operating plates and the spring are provided on one surface side of the main body, and at least the pair of operating plates and the spring can be covered, and an outer shape substantially equivalent to the main body is provided. The plastic bottle cutting processing tool according to claim 1, further comprising a lid having: 3. A notch in a direction not facing the opening is provided in a part of an outer periphery of the main body or a part of an outer periphery of the lid, and a sharp wedge-like projection is formed on an outer edge of the notch. 3. The plastic bottle according to claim 1, wherein a cutting blade is provided on an inner edge of the wedge-shaped projection so that the wedge-shaped projection can be inserted into a gap between the bottle and its exterior film. Cutting tool.