JP3124630U - Plastic disposable chopsticks - Google Patents

Abstract

An object of the present invention is to make a disposable chopstick that is made of plastic and can be divided easily and has as little material as possible.
According to the present invention, two plastic ridges having a distal end with a circular cross-section and a base with a thick square cross-section are connected in parallel, and the corners of the square are connected with a thin skin, The object was achieved by a plastic disposable chopsticks characterized in that a groove having a concave cross section was provided on all four surfaces, and a plurality of annular grooves were provided in the article clamping area on the tip side.
[Selection] Figure 1

Description

  This invention relates to a plastic disposable chopstick developed in place of a widely used wooden disposable chopstick.

  Conventional chopsticks are all made of wood and are said to be used between 30 billion to 35 billion liters per year in Japan, and 85% of the above depend on imports from abroad.

  On the other hand, it is customary not to use chopsticks once used as a food culture in Japan, and it is guaranteed that the chopsticks are used only once by dividing them when used.

As described above, when disposable chopsticks are used once, they are never used again and there is no way to recycle them.
JP 7-77571 JP-A-6-7236

  All chopsticks currently in use are wooden, and 85% are imported. Therefore, if there are export restrictions due to depletion of timber resources, there is a risk that the price will rise and management will be difficult. Reuse is a sanitary problem and there is still no reliable solution.

  As described above, there is a proposal to make the disposable chopsticks made of a synthetic resin, but it has not yet spread. The reason why the proposal does not become widespread may be that it cannot compete with low-priced wooden disposable chopsticks, or is due to processing of used chopsticks, or a difficult shape.

  The above-mentioned price can be solved by increasing the number of imported disposable chopsticks and by molding a large number of high-speed moldings based on synthetic resin molding technology. In addition, the treatment of used chopsticks can be solved by using a recyclable resin or a biodegradable resin to reduce waste by regeneration or microbial treatment. Furthermore, the conventional problems have been solved by adding a device for making it easier to split.

  This device solves the above-mentioned conventional problems by adopting a mass production system, using a synthetic resin for easy tearing, and making it easy to tear.

  That is, in this device, two plastic rivets with a distal end side having a circular shape and a base end side having a square shape are arranged in parallel, and the corner portions of the square shape are connected with a thin skin, and the four sides of the intermediate portion are connected to each other. A plastic disposable chopstick provided with a groove having a concave cross section, and provided with a plurality of annular grooves in the article sandwiching area on the distal end side. Two plastic cages thickened as a square cross section are juxtaposed, and the corners of the square are connected by a thin skin, and grooves having a concave cross section are provided on the four sides of the intermediate part, and the article sandwiching area on the tip side is on the tip side. A plastic disposable chopstick characterized in that it is thinned, the base end side is thickened, and a plurality of annular grooves are provided in the portion.

  In another aspect, the plastic side is thinned with a circular cross-section at the front end and a square cross-section at the base end side, and the corners of the square are connected with a thin skin, and the lower edge of the thin skin is connected. A cut is made in the four sides of the plastic cage, and a groove having a concave cross section is provided on the intermediate surface of the plastic bag. The article clamping area on the distal end side is narrowed on the distal end side and the proximal end side is thickened. A plastic disposable chopstick, characterized by providing a stepped annular groove, wherein two plastic baskets having a distal end side of a circular cross-section and a base end side of a square cross-section are arranged in parallel, Are connected with a thin skin, provided with a groove having a concave cross section on the four surfaces of the intermediate portion, and provided with a plurality of annular grooves in the article sandwiching region on the distal end side, Between the circular part, it is a square with a corner arc of almost the same cross section, and a concave groove that spans the entire length. This is a plastic disposable chopstick that is provided with two plastic baskets that are thin with a circular cross-section at the front end and a square cross-section at the base end, and the corners of the square are connected with a thin skin. In addition, a triangular incision is made in the lower edge of the thin skin, a groove having a concave cross section is provided on the four sides of the intermediate portion of the plastic bag, the article sandwiching area on the distal end side is narrowed on the distal end side, and the proximal end side The section is provided with a plurality of annular grooves, and between the base-side square portion and the tip-side circular portion is a square of a corner arc of substantially the same cross section, It is a plastic disposable chopstick characterized by having a recessed and isolated groove.

  In this device, the square corners of the base of the chopsticks are connected with a thin skin, so that it is relatively easy to break. Here, the term “square” refers to a triangle, a square, a pentagon, a hexagon, an octagon, and other polygons. In addition, since a cut was made in the lower edge of the thin skin (closer to the tip of the chopsticks), separation of both chopsticks (thus breaking the thin skin) became extremely easy.

  Next, since the concave groove is provided in the flat portion, the material used is relatively small, and there is a characteristic that it is strong against bending. In addition, since the tip side has a circular cross section, objects can be sandwiched evenly regardless of the orientation of the two chopsticks.

  The concave groove is deepened in consideration of strength, and chopsticks can be manufactured with as little material as possible.

  Synthetic resins used in this invention are polypropylene, polyethylene, polycarbonate, corn, sugarcane, potato-derived resin (biodegradable resin) or plastic, which can be molded E pellets (developed by the Hokuetsu Paper Group) New materials containing 51% or more of white paper) and other non-toxic and strong synthetic resins can be used. In the above, the synthetic plastic can be regenerated, the biodegradable resin has a low combustion value (for example, 200 ° C.), no dioxin is generated, and the raw material is not toxic. Further, if left untreated (or artificially), it is decomposed into microorganisms, which is excellent in terms of environmental hygiene. Both are resistant to water and oil.

  According to this device, since the square corners of the base end are connected by the thin skin, the thin skin can be easily broken by opening the distal end side.

  Further, since the cut is made in the lower edge of the thin skin, there is an effect that it can be easily broken regardless of the original taste of the thin skin.

  Next, since the recessed grooves are provided on two or four sides, a chopstick having sufficient strength can be obtained with a relatively small amount of material.

  In this device, two plastic rivets with a distal end side having a circular cross section and a base end side having a square cross section are juxtaposed, and a corner of about 1 cm from the base end is connected with a thin skin, and the thin skin is A triangular incision is made in the lower edge, the corner of the middle part is formed in an isolated shape, a groove having a concave cross section is provided in the flat part, and the article clamping area on the tip side is made narrower on the tip side. The plastic side chopsticks of the present invention were configured so that the end side was thickened and a plurality of annular grooves were provided in the part, and the square part on the base end side and the circular part on the tip end side had substantially the same cross-sectional shape.

  An embodiment of the present invention will be described with reference to FIGS. 1 and 2. A square portion 2 or 2 having a length of about 1 cm is provided at the base ends of the plastic rods 1 and 1, and a sandwiching portion 4 or 4 is provided at a tip portion of about 4 cm. The sandwiching portions 4 and 4 are thicker at the proximal end side and narrower at the distal end side, and are provided with annular grooves 3 and 3 on the side wall between them, and are intermediate between the square portions 2 and 2 and the sandwiching portions 4 and 4. The portions 5 and 5 have corners formed in an arcuate shape 9 and provided with grooves 6 and 6 having a concave cross section in the plane portion, and the corner portions of the rectangular portions 2 and 2 are connected by a thin skin 7. A notch 8 was provided at the lower edge of 7 to obtain a plastic disposable chopstick 10 of the present invention.

  In the above embodiment, point bonding is performed at a part of the tip side. This is due to the fact that two plastic baskets are correctly aligned in automatic packaging with a machine. The intermediate portion of the plastic basket has a substantially square cross section, but any of triangular to octagonal and other polygons can be adopted. Further, the depth of the groove 6 may be deeper or shallower, both of which belong to this device.

(A) The top view of the Example of this invention, (b) Similarly front view. (A) A partially enlarged perspective view, (b) A side (base end side) enlarged view, and (c) A side (clamping portion side) enlarged view of a single plastic bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plastic basket 2 Square part 3 Annular groove 4 Clamping part 5 Middle part 6 Groove 7 Thin skin 8 Cut 9 Circular arc 10 Plastic chopsticks

Claims (5)

  Two plastic rivets with the distal end side made circular and thin, and the proximal end side thickened with a square cross section are juxtaposed, and the corners of the square are connected with a thin skin. A plastic disposable chopstick, characterized in that a plurality of annular grooves are provided in the article clamping area on the tip side.   Two plastic rivets with the distal end side made circular and thin, and the proximal end side thickened with a square cross section are juxtaposed, and the corners of the square are connected with a thin skin. A plastic disposable chopstick characterized in that the article sandwiching area on the distal end side is made narrower at the distal end side and thicker at the proximal end side, and a plurality of annular grooves are provided in the section.   Two plastic rivets with the distal end side circular and thin, and the proximal end side thickened with a square cross section are connected in parallel, the corners of the square are connected with a thin skin, and a cut is made in the lower edge of the thin skin, A groove with a concave cross section is provided on the four sides of the middle part of the plastic bag, the article sandwiching area on the tip side is made narrower at the tip side, and the base end side is made thicker, and a plurality of annular grooves are provided in the part. Plastic disposable chopsticks characterized by that.   Two plastic rivets with the distal end side made circular and thin, and the proximal end side thickened with a square cross section are juxtaposed, and the corners of the square are connected with a thin skin. A plurality of annular grooves are provided in the article sandwiching area on the distal end side, and a corner arc of substantially the same cross section is formed between the square section on the proximal end side and the circular section on the distal end side. A plastic disposable chopstick, characterized in that it has a concave groove over its entire length.   Two plastic rivets with a distal end of a circular cross-section and a base end with a square cross-section are connected in parallel, and the corners of the square are connected with a thin skin, and a triangular notch is made in the lower edge of the thin skin. A groove having a concave cross section is provided on the four surfaces of the intermediate portion of the plastic basket, the article sandwiching region on the distal end side is made narrower at the distal end side, and the proximal end side is made thicker. A plastic, characterized in that a square arc of a corner arc having substantially the same cross section is formed between the square portion on the proximal end side and the circular portion on the distal end side, and a concave groove is provided over the entire length. Made-up chopsticks.

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