JP3155071U - Synthetic resin chopsticks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a synthetic resin disposable chopsticks in which the amount of resin used is reduced without adversely affecting the chopsticks separation and feeling of use. SOLUTION: In a split chopstick formed of synthetic resin in a state where a pair of chopsticks 1 and 1 are arranged side by side and connected by a connecting body 11, the rear portion of the chopsticks except for the front portion 2 of the chopsticks for picking food is left and right. The side plates 3A and 3B and the intermediate horizontal connecting plate 4 connecting the side plates 3A and 3B are formed in a cross-sectional E shape, and the weir-shaped reinforcing ribs 5 connecting the upper and lower side plates of the horizontal connecting plate and the left and right side plates are arranged at a plurality of locations. Two coupling bodies 11, 11 are provided close to the front and rear portions of the side plate across the reinforcing rib portion. [Selection] Figure 1

Description

This invention relates to disposable chopsticks molded from synthetic resin.

  Divided chopsticks are available at convenience stores and supermarkets as well as foods in packed containers such as lunch boxes and cup noodles. Wooden chopsticks are generally wooden ones that are disposable, but those made of synthetic resin such as plastic are becoming popular in order to protect wood resources in consideration of the global environment.

  As this type of disposable chopsticks, a pair of chopsticks that are formed integrally with a pair of chopsticks arranged side by side and connected by a connecting body is generally used.

Utility Model Registration No. 3128154 JP 2009-101042 A

  In the case of the synthetic resin chopsticks provided for disposable use with the food in the packaging container as described above, it is desirable that the amount of resin used for the chopsticks is small in order to reduce the manufacturing cost.

  In addition, chopsticks are not separated from the beginning to give consumers the impression of a virgin seal because they are provided for disposable use together with food in packaging containers. And disposable chopsticks are desirable from the viewpoint of product management.

  In the former, in general, it is a common technique to provide a cavity or groove in a product in order to reduce the amount of resin in the resin product, and this is applied to chopsticks to provide a cavity or groove in the chopstick. There is not much difficulty in conceiving to reduce the absolute amount (Patent Document 2).

  Generally, when a hollow part or a groove part is provided in a chopstick, the remaining part becomes thin and the strength is weakened. On the other hand, as described above, it is desirable that the chopsticks made of rigid resin have a split chopsticks form. In such a case, the strength becomes weak, and the following problem becomes apparent.

  In the case of wooden chopsticks, a pair of chopsticks are separated partway through a slit and separated into two chopsticks by tearing the connecting part without the remaining slit, but the connecting part is arranged along the grain, Separation is performed smoothly without affecting other parts of the chopsticks, and no trace of the part is produced.

  However, in the case of disposable chopsticks made of synthetic resin, the pair of chopsticks arranged on the left and right are separated by strong pressure to destroy the joint formed integrally therewith, so the chopstick part where the joint is provided becomes thin. If the strength is weakened, there is a risk that this part will be pulled and destroyed. In this case, the chopsticks are broken irregularly, and as a result, the portions remain as sharp cracks or scoops, which may cause danger in use. Even if it does not affect the chopstick body itself, the rigidity of the chopstick part that supports the connecting part is weakened, so the connecting part is not broken cleanly and remains as a convex trace. You may feel a sense of incongruity at your fingertips.

  The present invention was created in view of the above-described problems of the prior art, and an object thereof is to provide a disposable chopstick with a reduced amount of resin used without adversely affecting the chopstick separation and feeling of use. That is, the synthetic resin disposable chopsticks of this device are a pair of chopsticks arranged side by side and connected by a coupling body, and the chopsticks molded by the synthetic resin, the rear portion of the chopsticks excluding the front portion of the chopsticks for picking food, The reinforcing ribs are formed in a cross-sectional shape consisting of left and right side plates and an intermediate horizontal connecting plate connecting them, and weir-like reinforcing ribs connecting the upper and lower sides of the horizontal connecting plates and the left and right side plates are arranged at a plurality of locations. Two connecting bodies are provided close to each other at the front and rear portions of the side plate across the board.

  Further, here, as the second device, in the above-mentioned synthetic resin disposable chopsticks, the connecting bases that are raised in the back-and-forth direction of the side plate are provided on the surface of the opposing side plates of the chopsticks, and the tops of the connecting bases facing each other are provided. A synthetic resin disposable chopstick is also disclosed in which the elongated body is connected by an elongated body having a narrow width in the bending direction so that the elongated body is broken when the disposable chopstick is cut off.

  According to the synthetic resin disposable chopsticks of the present invention having the above-described configuration, first, the rear portion of the chopsticks excluding the front portion of the chopsticks for picking food is a cross-section composed of the left and right side plates and an intermediate horizontal connecting plate connecting them. Since the gap is formed in the chopsticks by forming the letter “E” shape, it is possible to greatly reduce the amount of resin used, and the effect of reducing the raw material cost can be obtained.

  In this case, the left and right side plates of the chopsticks are thin, but in this device, weir-shaped reinforcing ribs connecting the upper and lower sides of the horizontal connecting plate and the left and right side plates are arranged at a plurality of locations, and the connecting portion connecting the chopsticks is strengthened as described above. Since it disperse | distributes and is provided in two places before and behind the side plate across a rib location, it can set the fracture | rupture strength of the connection part per location low first. Secondly, the side plate on which these connecting portions are arranged straddles the reinforcing rib in the middle, so that the strength and rigidity are increased, and when the pair of chopsticks are pulled apart by a strong pressure, the side plate is not pulled and broken, Since the side plate is not bent and bent, the connecting portion is neatly destroyed and there is no possibility of leaving a convex trace.

  On the other hand, the split chopsticks of this device have left and right side plates, so unlike the chopsticks described in Patent Document 2 in which the grooves are exposed on the front surface of the circumferential side, they can be used with the same feeling as normal chopsticks. can do.

  Further, according to the second device, since the connecting body is provided via the connecting base raised from the side plate, the influence on the side plate at the time of breakage is further reduced, and the connecting base is shaped like a kamaboko in the front-rear direction of the side plate. Since it is constructed, it does not give a sense of incongruity to the hand even when it is raised.

The top view of the synthetic resin disposable chopsticks of this device. The perspective view of the principal part of the synthetic resin disposable chopsticks of this device. The top view of the principal part same as the above. The partially cutaway perspective view of the principal part. The partially notched perspective view of the principal part which shows a cut-off state same as the above. The bottom view of the synthetic resin disposable chopsticks of this device. FIG. Same as above, side view.

  Embodiments of the synthetic resin disposable chopsticks of the present invention will be described below with reference to the accompanying drawings. The disposable chopsticks are integrally formed of synthetic resin in a state where a pair of chopsticks 1 and 1 are arranged side by side and connected by a connecting body 11. In this embodiment, plastics such as polypropylene, polyethylene, and polycarbonate are assumed as the synthetic resin, but the material is not limited to these.

  Reference numeral 2 in the figure denotes a front part of the chopsticks for picking food, but this part is formed innocuous, and the rear part of the chopsticks excluding this part is connected to the left and right side plates 3A, 3B and an intermediate horizontal connection. The plate 4 is formed in an E-shaped cross section. On the other hand, weir-shaped reinforcing ribs 5 connecting the upper and lower sides of the horizontal connecting plate 4 and the left and right side plates 3A, 3B are arranged at a plurality of locations (here, three locations).

  Reference numeral 11 in the figure denotes a connecting body that connects two chopsticks 1 and 1 (see FIGS. 3 to 5). The connecting body 11 continues to the side plate 3B located inside each chopstick via the connecting bases 10 and 10. The connection bases 10 and 10 are provided in a shape that rises like a cone in the front-rear direction of the side plate 3B, and the tops of the connection bases facing each other are connected to a connection body 11 made of an elongated body narrowing in the bending direction.

  Two connecting bodies 11 are provided at the front and rear portions of the side plate 3B across the five reinforcing ribs located near the rear end of the chopsticks 1.

DESCRIPTION OF SYMBOLS 1 Chopsticks 3A, 3B Side plate 4 Horizontal connection plate 5 Reinforcement plate 10 Connection base 11 Connection body

Claims (2)

In the split chopsticks molded with synthetic resin in a state where a pair of chopsticks are arranged side by side and connected by a connector, the rear part of the chopsticks except for the front part of the chopsticks for picking food is placed between the left and right side plates and the middle horizontal The connecting plate is formed in an E-shaped cross section, and weir-shaped reinforcing ribs connecting the upper and lower side plates of the horizontal connecting plate and the left and right side plates are arranged at a plurality of locations, and two at the front and rear portions of the side plate straddling the reinforcing rib locations. A synthetic resin disposable chopstick, characterized in that a coupling body is provided in the vicinity. By providing a connecting base portion bulging in the back-and-forth direction of the side plate on the surface of the opposing side plate of each chopstick, and by connecting the tops of the opposing connecting base portions to each other by an elongated body narrowing in the bending direction, 2. The synthetic resin disposable chopsticks according to claim 1, wherein the elongated body is a connected body that is broken when the disposable chopsticks are separated.

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