JP3136973U - chopsticks - Google Patents

Abstract

The present invention provides a chopstick that has excellent grip and aesthetics, does not require a special material, and can be easily manufactured, and does not require a chopstick rest.
A chopstick 1 includes a head 2 from an upper end 4 to an intermediate point 5 and a chopstick tip 3 from an intermediate point 5 to a lower end 6. The head 2 has a regular polygonal shape (for example, a regular pentagon) or a circular shape when cut perpendicularly at an arbitrary point on the axis 7 of the chopsticks 1 and has an area of the sectional shape from the upper end 4 to the middle point 5. For the three-dimensional shape 8 that gradually decreases, the flat surface 9 is cut from the end surface 10 of the upper end 4 to the side surface of the intermediate point 5 and the side portion of the side surface is cut off to form the mounting plane 9. It has a shape like When the chopsticks 1 are placed on a flat surface such as a table, a space of 3 mm or more is formed between the flat surface and the lower end 6 of the chopsticks 1. It is what is done.
[Selection] Figure 1

Description

  The present invention relates to chopsticks.

Chopsticks usually have a straight outline from the upper end to the lower end (chopstick tip). Therefore, when placing chopsticks directly on the table, the tip of the chopsticks may come into contact with the surface of the table, which may be unsanitary. In order to avoid this, a chopstick rest can be used. However, in general homes and the like, the chopstick rest is often not used due to complexity.
Under such circumstances, there has been proposed a chopstick that can be placed on a table without contacting the chopstick tip without using a chopstick rest.
As an example, the cross section of the central part of the length is circular, one side is a tapered cone with the circle as the bottom, and the opposite side is a square with the diameter of the circle of the central cross section as the side, and the end is slightly thin A chopstick that does not require a chopstick rest, which is characterized by being cut into a quadrangular pyramid is proposed (Patent Document 1).
As another example, when the head of a chopstick is heavy and placed on a flat surface such as a table, the tip of the chopstick is lifted by the weight of the head, and the tip of the chopstick can be placed on the table without using a chopstick rest. A chopstick has been proposed in which the chopsticks are prevented from being soiled by dirt (Patent Document 2). This chopstick is provided with a chopstick's head portion closer to the chopstick head side than the center portion of the chopstick length, and a weight attached to the chopstick head portion side from the chopstick portion.
As yet another example, a chopstick has been proposed in which a protrusion is integrally formed at an intermediate portion between a base portion and a tip portion (Patent Document 3).
Japanese Utility Model Publication No. 7-36847 JP-A-7-194473 Japanese Utility Model Publication No. 5-21772

The chopsticks described in Patent Document 1 are formed so that the central portion of the length has the largest diameter, so that the cross-sectional area gradually decreases from the upper end to the lower end (chopstick tip) compared to a normal chopstick form. There is a problem that it is difficult for the user of the chopsticks to grip and the stability is poor in the gripped state.
The chopsticks described in Patent Document 2 need to be attached with a weight made of a material having a very large specific gravity compared to the material constituting the chopstick body. It is considered that the tip of the chopsticks cannot be lifted unless the specific gravity of the weight is very large.
The chopsticks described in Patent Document 3 have a problem of being inferior in aesthetics because they have protrusions.
Thus, chopsticks that do not require a chopstick rest that have been proposed in the past have problems such as being difficult to grasp, requiring a special material different from the material of the chopstick body, or having poor aesthetics. .
Accordingly, an object of the present invention is to provide a chopstick that does not require a chopstick rest and has an excellent grip and aesthetics, does not require a special material, and can be easily manufactured.

As a result of intensive studies to solve the above-mentioned problems, the present inventor achieved the above-mentioned object if the shape of the chopsticks is determined to be a specific one, without providing a thing that impairs aesthetics such as a protrusion. I found out that I could get it and completed this invention.
The present invention provides the following [1] to [6].
[1] A chopstick comprising a head from the upper end to the middle point and a chopstick tip from the middle point to the lower end, the head being cut vertically at an arbitrary point on the axis of the chopsticks For a three-dimensional shape in which the cross-sectional shape is a regular polygon or a circle and the area of the cross-sectional shape gradually decreases from the upper end to the middle point, a plane is cut from the end surface of the upper end to the side surface of the intermediate point. The side portion of the head is cut off to form a flat surface for placing chopsticks, and the chopstick tip part has the three-dimensional shape of the head from the midpoint to the lower end. When the flat surface for placing the chopsticks on the head is placed on a flat surface, the straight surface formed by extending the contour, between the flat surface and the lower end of the chopsticks, A chopstick characterized by being configured so as to be stably stationary in a state where a gap having a height of 3 mm or more is formed.

[2] When the flat surface for placing chopsticks on the head is placed on a flat surface, there is a gap of 80 mm or more in the axial direction of the chopsticks between the flat surface and the chopsticks. The chopsticks [3] according to claim 1, wherein the ratio of "head length / chopstick length" is 0.35 to 0.55. 2].
[4] The chopsticks according to any one of [1] to [3], which are made of only one material selected from the group consisting of wood, metal, and synthetic resin.
[5] The cross-sectional shape of the three-dimensional shape in the head is a regular pentagon, and the chopstick tip is continuously formed with the three-dimensional shape of the head from the midpoint to the lower end. The chopsticks according to any one of [1] to [4], which have a regular pentagonal cross-sectional shape.
[6] The three-dimensional cross-sectional shape of the head is a square, and the chopstick tip has at least four planar side surfaces from the midpoint to the lower end. ] The chopsticks according to any one of [4].

Since the chopsticks of the present invention have a specific shape, the chopsticks can be stably placed on the table or the like without using a chopstick rest without contacting the chopstick tip.
The chopsticks of the present invention have a shape that is partially cut off from the three-dimensional shape in which the cross-sectional area gradually decreases from the upper end to the middle point. There is an advantage that a person with chopsticks can easily hold it.
Since the chopsticks of the present invention have a specific shape without protrusions, the chopsticks are superior in aesthetics compared to the conventional technique in which protrusions are provided and the chopstick tip is lifted.
Since the chopsticks of the present invention lift the chopstick tip by forming it in a specific shape different from the conventional one, a special material (for example, a metal having a very large specific gravity) in a specific portion (for example, the upper end portion) It is possible to produce only with a single material (for example, wood).
The chopsticks of the present invention can be easily and quickly manufactured, for example, can be manufactured only by linear cutting.

Hereinafter, embodiments of the chopsticks of the present invention will be described with reference to the drawings. 1 is a front view showing an example of the chopsticks of the present invention, FIG. 2 is a left side view of the chopsticks shown in FIG. 1, and FIG. 3 shows a state where the chopsticks shown in FIG. 1 are placed on a flat surface. 4 and 4 are left side views showing another example of the chopsticks of the present invention in correspondence with FIG.
1 to 3, a chopstick 1 is formed by continuously and integrally forming a head 2 from an upper end 4 to an intermediate point 5 and a chopstick tip 3 from an intermediate point 5 to a lower end 6.
The length of the chopsticks 1 is not particularly limited, but is usually 210 to 230 mm.
The head 2 has a regular pentagonal cross-sectional shape when cut perpendicularly at an arbitrary point on the axis 7 of the chopsticks, and the area of the cross-sectional shape of the regular pentagon gradually decreases from the upper end 4 to the middle point 5 ( 1 and 2, the shape including the dotted line portion as the outline) is cut from the upper end face 10 to the side surface of the intermediate point 5 in a planar shape, and the side portion is cut off to place the chopsticks. It has a shape such that a flat surface 9 is formed.
Here, the cross-sectional shape of the three-dimensional shape 8 may be a regular polygon other than a regular pentagon (for example, a square, a regular hexagon, a regular octagon, etc.) or a circle.
In the present specification, the shape of the regular polygon is not limited to an accurate regular polygon consisting of only points and straight lines, but also includes a rounded apex (see FIG. 4).

The chopstick tip part 3 has a linear outline formed by extending the outline of the solid shape 8 of the head 2 from the midpoint 5 to the lower end 6. Therefore, the chopstick tip part 3 has a substantially radial symmetrical cross-sectional shape with respect to the linear axis 7.
The ratio of “the length L _{1 of the} head 2 / the length L of the chopsticks 1” is preferably 0.35 to 0.55, more preferably 0.37 to 0.53, and particularly preferably 0.39 to 0. .51.
When the ratio is less than 0.35, when the chopstick placement plane 9 is placed on the flat surface 20 (see FIG. 3), the chopstick 1 is placed in the direction of rotation of the watch with the midpoint 9 as a fulcrum. Rotation may cause the lower end 6 to abut on the flat surface 20. When the ratio exceeds 0.55, when the flat surface 9 for placing chopsticks is placed on the flat surface 20, a sufficient height is provided between the flat surface 20 and the lower end 6 of the chopsticks 1. It may be difficult to form a gap (for example, 3 mm or more).
Note that L _{2 in} FIG. 1 represents the length of the chopstick tip 3. There is a relationship of L = L ₁ + L ₂ .

As shown in FIG. 3, when the chopstick placement plane 8 is placed on the flat surface 20, the chopstick 1 is placed between the flat surface 20 such as a table and the lower end 6 of the chopstick 1. It is configured to be stably stationary in a state where a gap having a height of 3 mm or more (indicated by symbol H in FIG. 3) is formed.
Here, the height H in FIG. 3 is the distance between the flat surface 20 and the lowest point of the lower end 6 of the chopsticks 1 (in other words, the lowest point of the end surface forming the lower end 6).
The height H is 3 mm or more, preferably 4 mm or more, more preferably 5 mm or more.
The upper limit of the height H is not particularly limited, but is usually 7 mm or less.
When the flat surface 9 for placing chopsticks is placed on a flat surface 20 such as a table, the chopsticks 1 extend between the flat surface 20 and the chopsticks 1 in the direction in which the axis 7 extends (in other words, the chopsticks It is desirable that a gap with a length of 80 mm or more is formed in the longitudinal direction of 1).
Here, the length of the gap is preferably 80 mm or more, more preferably 90 mm or more, and particularly preferably 100 mm or more.
Note that the length of the gap is the same as the length L ₂ of the chopstick tip 3.
Examples of the material of the chopstick 1 include wood, metal, and synthetic resin. The chopsticks 1 need only be one kind of material. Note that the material here means the material of the main body of the chopsticks 1, and the paint applied to the outer surface of the chopsticks 1 is not included in the material of the chopsticks 1.

The chopstick tip 3 has a regular pentagonal cross-sectional shape continuously formed from the solid shape 8 of the head 2 from the midpoint 5 to the lower end 6.
In addition, when the solid shape 8 of the head 2 is a square other than a regular pentagon (for example, a square, a regular hexagon, a regular octagon, etc.) or a circle, the cross-sectional shape of the chopstick tip 3 is matched to the shape of the solid shape 8. A square other than a regular pentagon (for example, a square, a regular hexagon, a regular octagon, etc.) or a circle is preferable from the standpoint of ease of manufacturing the chopsticks 1 and aesthetics.
However, in the present invention, the cross-sectional shape of the chopstick tip 3 can be different from the cross-sectional shape of the three-dimensional shape 8 of the head 2.
For example, the chopsticks shown in FIG. 4 is an example in which a square cross-sectional shape is adopted instead of the regular pentagonal cross-sectional shape shown in FIG. Reference numeral 30 denotes an end face at the upper end of the chopsticks. Reference numeral 31 indicates a three-dimensional shape (including a dotted line) having a substantially square cross-sectional shape. Reference numeral 32 denotes a plane for placing chopsticks formed by cutting off a dotted line portion in the three-dimensional shape indicated by reference numeral 31.
In the case of having the head shown in FIG. 4, the chopstick tip 3 (see FIG. 1) may be formed so as to have a square cross-sectional shape from the midpoint 5 to the lower end 6, or otherwise. You may form so that it may have the following cross-sectional shape (for example, regular pentagonal cross-sectional shape).
The numerical ranges and the like in the description based on the above-described drawings are the same for the other embodiments.

[Example 1]
1 to 3, a chopstick whose cross section of the solid shape 8 of the head 2 is a regular pentagon and whose cross section of the chopstick tip 3 is a regular pentagon, and has a total length L of 220 mm and a head A wooden chopstick having a length L ₁ of the portion 2 of 90 mm (L ₁ / L ratio: 0.41) and a length L ₂ of the chopstick tip portion 3 of 130 mm was produced.
When the chopstick placement plane 9 of this chopstick was placed on the flat surface 20, the height of the gap between the flat surface 20 and the lower end 6 of the chopsticks was 5 mm. In addition, the chopsticks remained stable in this state and did not tilt.

[Example 2]
1, 3, and 4, the cross-sectional shape of the solid shape 8 of the head 2 is substantially square, and the cross-sectional shape of the chopstick tip 3 is a regular pentagon (however, a portion close to the boundary with the head 20) Is a rounded outer shape with a larger number of cutting surfaces.) The chopsticks have a total length L of 220 mm and a length L ₁ of the head 2 of 108 mm (L ₁ / L). ratio: 0.49), the length _{L 2} of Hashisaki unit 3 was fabricated wooden chopsticks is 112 mm.
When the chopstick placement plane 9 of this chopstick was placed on the flat surface 20, the height of the gap between the flat surface 20 and the lower end 6 of the chopsticks was 5 mm. In addition, the chopsticks remained stable in this state and did not tilt.

It is a front view which shows an example of the chopsticks of this invention of this invention. It is a left view of the chopsticks shown in FIG. It is a figure which shows the state which mounted the chopsticks shown in FIG. 1 on the flat surface. It is a left view which shows the other example of the chopsticks of this invention corresponding to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chopstick 2 Head 3 Chopstick tip 4 Upper end 5 Middle point 6 Lower end 7 Chopstick axis 8 Solid shape with cross-sectional shape of regular pentagon 9 Flat surface for placing chopsticks 10 Upper end surface 20 Flat surface 30 Upper end surface 31 Solid shape with a square cross section 32 Planar surface for chopsticks

Claims (6)

A chopstick consisting of a head from the upper end to the middle point and a chopstick tip from the middle point to the lower end,
The head is a three-dimensional shape in which the cross-sectional shape when cut perpendicularly at any point on the axis of the chopsticks is a regular polygon or a circle, and the area of the cross-sectional shape gradually decreases from the upper end to the middle point. , Having a shape such that a flat surface for placing chopsticks is formed by cutting off a portion on the side of the side surface by cutting in a flat shape from the end surface of the upper end to the side surface of the intermediate point,
The chopstick tip has a straight outline formed by extending the solid outline of the head from the intermediate point to the lower end,
When the flat surface for placing chopsticks on the head is placed on a flat surface, it is stable with a gap of 3 mm or more formed between the flat surface and the lower end of the chopsticks. The chopsticks are configured to be stationary.   When the flat surface for placing chopsticks on the head is placed on a flat surface, a gap having a length of 80 mm or more is formed between the flat surface and the chopsticks in the axial direction of the chopsticks. The chopsticks according to claim 1 configured as described above.   The chopsticks according to claim 1 or 2, wherein a ratio of "head length / chopstick length" is 0.35 to 0.55.   The chopsticks according to any one of claims 1 to 3, comprising only one material selected from the group consisting of wood, metal, and synthetic resin.   A cross-sectional shape of the three-dimensional shape in the head is a regular pentagon, and the chopstick tip portion is a regular shape formed continuously with the three-dimensional shape of the head from the midpoint to the lower end. The chopsticks according to any one of claims 1 to 4, which has a pentagonal cross-sectional shape.   The three-dimensional cross-sectional shape of the head is a square, and the chopstick tip has at least four planar side surfaces from the midpoint to the lower end. Chopsticks given in any 1 paragraph.

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