JP3203760U - chopsticks - Google Patents

Abstract

A chopstick capable of significantly reducing manufacturing costs is provided. A chopstick according to the present invention is manufactured by injection molding, and has a cavity formed therein along a longitudinal direction, an upper end is opened, and a through hole 110 having a diameter smaller than the opening is formed at a lower end. Part 100 is included. [Selection] Figure 1

Description

  The present invention relates to chopsticks.

  Most disposable chopsticks used in the past are made of wood, such as wood and bamboo, and their use is avoided while the manufacturing process, environmental problems, health problems, etc. are emerging.

  Specifically, sulfur dioxide generated during the manufacturing process for making disposable chopsticks using the sulfur fumigation method may damage the respiratory mucosa of the manufacturer. If absorbed hydrogen peroxide is taken together in the process of taking food, there is a problem that the oral esophagus of the user, as well as the intestine or stomach, may be harmed.

  Furthermore, assuming that 45 billion disposable chopsticks are consumed every year in China to make such disposable chopsticks made of wood material, approximately 1.66 million cubic meters of wood will be consumed, which has a significant impact on the environment. There was a problem.

  Therefore, a method of forming disposable chopsticks was devised instead of wood that has been used in the past using plastic materials, but the amount of synthetic resin required for manufacturing disposable chopsticks that are not general chopsticks is large, There was a problem that it was difficult to reduce manufacturing costs.

  The object of the present invention is to solve the above-mentioned problems by manufacturing by injection molding, forming a cavity inside along the longitudinal direction, opening the upper end, and forming a through hole at the lower end. Therefore, it is to provide a chopstick that can significantly reduce the manufacturing cost.

  The present invention is to achieve the object of the present invention as described above. The present invention is manufactured by injection molding, a cavity is formed along the longitudinal direction, the upper end is opened, and the lower end is formed. Disclosed is a chopstick comprising a main body formed with a through hole having a smaller diameter than the opening.

  The main body has a circular cross section, an elliptical shape, or a polygonal shape.

  The main body has a circular cross-sectional shape at the lower end, a cross-sectional shape at the other end having a polygonal shape, and a cross-sectional shape from the lower end to the upper end is gradually changed from a circular shape to a polygonal shape. .

  The inner peripheral surface of the main body is formed with one or more reinforcing ribs formed in the longitudinal direction.

  The length of the reinforcing rib is 50% to 80% of the length of the main body.

  A plurality of the reinforcing ribs are formed at equal intervals along the circumferential direction with respect to the central axis of the main body.

  The length of the main body is greater than 0 mm and less than 250 mm.

The outer peripheral surface of the main body is formed with a slip stopper in the longitudinal direction of the main body or in the direction perpendicular to the longitudinal direction.

  The main body is a mixture of a synthetic resin and an edible talc powder.

 The synthetic resin is polypropylene or polypropylene, and the edible talcum powder is greater than 0 wt% and equal to or less than 50 wt%.

  Further included is a lead inserted into and coupled to the opening.

  The lead includes a cap portion that forms a gentle surface with the outer peripheral surface of the main body portion, and an insertion portion that protrudes from a lower end of the cap portion and is inserted into the opening.

  The chopsticks according to the present invention are formed by an injection molding method, have a merit that a manufacturing process is simple, and a process dangerous to the health of the manufacturer is not included.

  In addition, the chopsticks according to the present invention do not require a separate bleaching process in the manufacturing process, and have the merit that the user can use it hygienically.

  In addition, the chopsticks according to the present invention have the merit of being able to significantly reduce the amount of injection, that is, the amount of synthetic resin used during injection molding, increasing production efficiency and reducing production costs.

  Further, the chopsticks according to the present invention have the merit that the structural strength of the chopsticks can be improved and the performance of the chopsticks can be improved by forming one or more reinforcing ribs in the longitudinal direction on the inner peripheral surface. is there.

It is a perspective view which shows the Example of the chopsticks which concern on this invention. It is a longitudinal cross-sectional view of the chopsticks of FIG. It is sectional drawing seen in the AA direction in FIG. It is sectional drawing seen in the BB direction in FIG. It is a top view of the chopsticks of FIG. It is sectional drawing which shows another Example of the chopsticks which concern on this invention. It is a perspective view which shows another Example of the chopsticks which concern on this invention. It is a partial longitudinal cross-sectional view which shows the state with which the lead | read | reed was couple | bonded with the chopsticks of FIG. It is a perspective view which shows the lead | read | reed of FIG.

  Hereinafter, chopsticks according to the present invention will be described with reference to the accompanying drawings.

  The chopsticks according to the present invention are manufactured by injection molding as shown in FIGS. 1 to 7, and a cavity 150 is formed inside along the longitudinal direction, an upper end is an opening 120, and a lower end is smaller than the opening 120. It includes a main body portion 100 in which a through hole 110 having a diameter is formed.

  In the chopsticks according to the present invention, the main body portion 100 includes a synthetic resin material, and preferably includes a mixture of a synthetic resin and an edible talc powder. More preferably, the synthetic resin is polypropylene or polypropylene. Edible talcum powder is greater than 0 wt% and less than or equal to 50 wt%.

  When the chopsticks are made of polypyrene or polypropylene synthetic resin, and further include edible talcum powder, the rigidity of the main body 100 in which the cavity 150 is formed is reinforced to give the chopsticks a material that is relatively resistant to warping. can do.

  In particular, the edible talcum powder is preferably greater than 0 wt% and equal to or less than 50 wt%. When the content of the edible talcum powder is large, the opacity increases, and when the content is small, the transparency increases. be able to.

  A main body 100 forming a chopstick according to the present invention is manufactured by injection molding, and has a cavity 150 formed therein along a longitudinal direction, an upper end having an opening 120, and a lower end having a smaller diameter than the opening 120. 110 is formed.

  Specifically, the main body 100 is manufactured by injection molding using the above-described synthetic resin material, a mixture of the synthetic resin material and edible talcum powder as a raw material.

  Here, the main body portion 100 may have a cylindrical cylinder, more preferably a cylindrical shape whose outer diameter increases from the lower end to the upper end.

  Further, the opening 120 at the upper end and the through-hole 110 at the lower end make it possible to form a chopstick having a cavity 150 formed therein.

  Here, the opening 120 is formed at the upper end so that the inner peripheral surface of the main body 100 is opened as it is, and the through hole 110 is formed at the lower end, which is much larger than the size of the opening 120. It is formed in a small size.

  With the structure as described above, a core mold (not shown) corresponding to the shape of the cavity has a gap, and an external mold (not shown) that matches the core mold is used to form the body 100. By forming the space, it is possible to form chopsticks having the structure described in the present invention.

  In particular, the formation of the through-hole 110 facilitates the uniform injection of the injection into the molding space, and the injection of the injection on the through-hole 110 side allows the injection of a uniform injection into the molding space.

  On the other hand, the opening 120 and the through hole 110 may have various shapes such as a polygonal shape, a circular shape, and an elliptical shape, and are preferably circular.

  The opening 120 preferably has an inner diameter of 14 mm or less than the maximum inner diameter at the lower end, and more preferably 5.0 mm to 7.0 mm.

  The through hole 110 preferably has an inner diameter of 0.3 mm to 1.0 mm.

  The length of the main body 100 is preferably larger than 0 mm and smaller than 250 mm, and may have various lengths depending on the use environment.

  Further, the thickness of the main body 100 is preferably about 3 mm or less, more preferably 0.5 mm to 1.5 mm.

  Further, the maximum outer diameter of the lower end of the main body 100 is preferably 5 mm or less, and the maximum outer diameter or width of the upper end is preferably larger than the maximum outer diameter of the lower end and 15 mm or less.

  Meanwhile, the main body 100 may have various shapes such as a cross section having one of a circular shape, an elliptical shape, and a polygonal shape.

  As an example, the cross-sectional shape of the lower end of the main body 100 is circular, the cross-sectional shape of the other end has a polygonal shape, and the cross-sectional shape from the lower end to the upper end gradually changes from a circular shape to a polygonal shape. It may have a changing shape.

  Meanwhile, the inner peripheral surface of the main body 100 is preferably formed with one or more reinforcing ribs 140 formed in the longitudinal direction.

  The length of the reinforcing rib 140 is preferably 50% to 80% of the length of the main body 100, and more preferably formed at a constant distance from the inner peripheral surface of the lower end.

  For example, the reinforcing rib 140 may have a length of 180 mm or less.

  As shown in FIGS. 3A to 3C and FIG. 4, the reinforcing ribs 140 are formed in a plurality at equal intervals along the circumferential direction with respect to the central axis of the main body 100.

  As an example, the number of reinforcing ribs 140 is preferably 100 or less.

  The reinforcing rib 140 is formed along the longitudinal direction of the main body 100 to increase the warping rigidity of the chopsticks despite the relatively thin thickness.

  Meanwhile, the reinforcing rib 140 may be variously formed such as being recessed inward relative to the inner peripheral surface of the main body 100 or protruding outward.

  Here, the reinforcing rib 140 is preferably formed to protrude outward in consideration of the fact that the main body 100 is formed thin.

  On the other hand, the structure as described above has an advantage that a firm chopstick can be formed while having a thin structure in addition to the material as described above.

  Meanwhile, a slip stopper 130 is formed on the outer peripheral surface of the main body 100 in the longitudinal direction of the main body 100 or in a direction perpendicular to the longitudinal direction.

  The anti-slip 130 has a configuration formed on the outer peripheral surface of the main body 100 in order to prevent a slip when a user sandwiches food or the like, and may have various structures.

  As an example, as shown in FIGS. 1 and 2, the anti-skid 130 is formed on the outer peripheral surface in the longitudinal direction of the main body 100 or in the direction perpendicular to the longitudinal direction.

  Further, the slip stopper 130 is formed by any one of a groove or a protrusion formed on the outer peripheral surface of the lower end of the main body 100. As another example, as shown in FIG. 5, the groove or the protrusion has a shape having one or more inclined surfaces from the outer peripheral surface of the main body 100 or a curved surface.

  Meanwhile, the main body 100 may be formed in a discoloration layer (not shown) at a lower end portion, a lower portion, etc., with a discoloration material that is discolored by any one of contact with a liquid and temperature change.

  As the color-changing substance, a color-changing ink that changes from white to transparent upon contact with water (water) is used.

  Further, as the color changing material, a color changing material whose hue changes according to temperature is used.

  Meanwhile, the chopsticks according to the present invention may further include a lead 200 that is inserted into and coupled to the opening 120 where foreign materials may flow through the opening 120.

  The lead 200 is inserted into and coupled to the opening 120 to prevent foreign substances from flowing into the cavity 150.

  As an example, the lead 200 includes a cap part 210 that forms a gentle surface with the outer peripheral surface of the main body part 100, and an insertion part 220 that protrudes from the lower end of the cap part 210 and is inserted into the opening 120.

  The cap portion 210 may be any configuration as long as it can form a gentle surface with the outer peripheral surface of the main body portion 100, and in consideration of the appearance, a cylindrical shape, a polygonal column shape, a truncated cone shape, etc. Or the shape of the combination may be sufficient.

  The insertion part 220 is configured to protrude from the lower end of the cap part 210 and be inserted into the opening 120, and is preferably formed to correspond to the inner peripheral surface shape of the opening 120.

  As an example, the insertion part 220 preferably has a cylindrical shape corresponding to the shape of the inner peripheral surface of the opening 120, and one or more protrusions 230 are formed on the outer peripheral surface for shrink fitting.

Example 1
In the structure of the embodiment, the number of the reinforcing ribs 140 is six, the length of the reinforcing ribs 140 is 190 mm, the length of the main body 100 is 200 mm, the thickness of the main body 100 is 2 mm, The diameter of the outer circle is 4 mm, and the square length of the upper end cross section of the main body 100 is 8 mm.

Execution example 2
In the structure of the embodiment, the number of the reinforcing ribs 140 is 8, the length of the reinforcing ribs 140 is 120 mm, the length of the main body 100 is 180 mm, the thickness of the main body 100 is 1.5 mm, and the lower end of the main body 100. The diameter of the outer circle of the cross section is 3 mm, and the length of the square on the upper end cross section of the main body 100 is 7 mm.

Execution example 3
In the structure of the embodiment, the number of the reinforcing ribs 140 is four, the length of the reinforcing ribs 140 is 160 mm, the length of the main body 100 is 190 mm, the thickness of the main body 100 is 1.3 mm, and the lower end of the main body 100. The diameter of the outer circle of the cross section is 3.6 mm, and the square length of the upper end cross section of the main body 100 is 7.5 mm.

  The above description is only a part of the description of the preferred embodiments that can be implemented by the present invention. As is well known, the scope of the present invention is not limited to the above-described embodiments and is not analyzed. Both the technical idea and the technical idea that together with the technical idea are included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Main part 110 Through-hole 120 Opening 150 Cavity

Claims (12)

  A chopsticks manufactured by injection molding, comprising a main body having a cavity formed therein along a longitudinal direction, an upper end opened, and a through hole having a diameter smaller than the opening formed at a lower end.   The chopsticks according to claim 1, wherein the main body has a cross-sectional shape of any one of a circle, an ellipse, and a polygon.   The main body has a circular cross-sectional shape at the lower end, a cross-sectional shape at the other end has a polygonal shape, and a cross-sectional shape from the lower end to the upper end gradually changes from a circular shape to a polygonal shape. The chopsticks according to claim 2.   2. The chopsticks according to claim 1, wherein the inner peripheral surface of the main body is formed with one or more reinforcing ribs formed in a longitudinal direction.   The chopsticks according to claim 4, wherein the length of the reinforcing rib is 50% to 80% of the length of the main body.   5. The chopsticks according to claim 4, wherein the reinforcing ribs are formed in a plurality at equal intervals along a circumferential direction with respect to a central axis of the main body portion.   The length of the said main-body part is larger than 0 mm and smaller than 250 mm, The chopsticks of Claim 4 characterized by the above-mentioned.   2. The chopsticks according to claim 1, wherein the outer peripheral surface of the main body is formed with a slip stopper in a longitudinal direction of the main body or a direction perpendicular to the longitudinal direction.   The chopsticks according to any one of claims 1 to 8, wherein the main body is a mixture of synthetic resin and edible talcum powder. The synthetic resin is polypropylene or polypropylene,
The chopsticks according to claim 9, wherein the edible talcum powder is greater than 0 wt% and equal to or less than 50 wt%.   The chopsticks according to claim 1, further comprising a lead inserted into and coupled to the opening. The lead has a cap portion that forms a gentle surface with the outer peripheral surface of the body portion,
The chopsticks according to claim 11, further comprising: an insertion portion that protrudes from a lower end of the cap portion and is inserted into the opening.