JP2008000591A - Decorative chopsticks with decoration and their producing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide decorative chopsticks with a three-dimensional decorative part on the head which is waterproof and can avoid abrasion or the like. <P>SOLUTION: The chopsticks with a decoration A on the head are provided. The decoration A comprises a base 1, a three-dimensional figure portion 2 on the base 1, and a transparent hood 3 covering the three-dimensional figure portion 2 on the base 1. The base 1 has a protrusion 1B on the lower part. The protrusion 1B is inserted into the hole 4A on the chopstick's head and fixed. The wall thickness of back and forth, or horizontal directions of the transparent hood 3 is thinner than a corner part. The hood plate itself is thinner and it has a general concave lens shape. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a chopstick used for eating, and more particularly to a decorative chopstick having a decorative body on the head of the chopstick and a method of manufacturing the same.

  At present, spoons, forks, chopsticks, etc. used for meals are indispensable. In recent years, many types have been put on the market due to the diversification trend.

Especially for chopsticks, it takes time to get used to the children and it is necessary to give them attachment.
For this reason, decorative chopsticks with cute decorations are on the market so that they can be easily liked by children.

  By the way, lamin, bamboo, maras, etc. are mainly used as materials for chopsticks, and these are cut into suitable lengths, trimmed, and colored or decorated on the surface to produce products. .

In general, when manufacturing decorative chopsticks, a wooden chopstick has a three-dimensional form formed by cutting the head of the chopstick body.
Therefore, it was impossible to form an attractive three-dimensional form other than wood on a wooden decorative chopstick.

For this reason, a method has been developed in which a three-dimensional form part independent of the chopstick body is created in advance and attached to the head of the chopsticks.
For example, there is a type in which a hole is provided at the top of a chopstick body, and a protrusion formed on a decorative body is inserted into the hole and hardened with a synthetic resin adhesive (Patent Document 1).

  Alternatively, there is a technique in which a decorative body to which a wire is attached is similarly inserted into a hole and hardened with a synthetic resin adhesive (Patent Document 2).

  However, since these methods can attach only a simple decorative body, for example, when attaching a popular character doll image or the like, it is not appropriate to make a hole in the character doll image because it is scratched.

  Further, in such a character doll image, colors are imparted and the color is likely to change or wear down when exposed to the outside.

  In addition, since chopsticks are washed many times with detergent or water, there is a disadvantage that they are similarly discolored or peeled off by water or detergent.

Registered Utility Model No. 3108000 Registered Utility Model No. 3111909

The present invention has been made against this background.
That is, an object of the present invention is to provide a decorative chopsticks in which a three-dimensional decorative portion attached to the head of the chopsticks is waterproof and can avoid wear or the like.

  As a result of repeated ingenuity on the background as described above, the present inventor has found that the conventional problems can be solved by covering the three-dimensional form part of the chopstick body with a transparent hood. Was completed.

  That is, the present invention is (1) a chopstick with a decorative body attached to the head, wherein the decorative body is attached to the base, the solid form part attached to the base, and the solid form part The decorative chopsticks are provided with a transparent hood that covers the periphery of the chopsticks, and a protruding portion is projected downward from the base, and the protruding portion is inserted and fixed in a hole formed in the head of the chopsticks.

  Further, according to the present invention, (2) the thickness of the front and rear or left and right walls of the transparent hood is such that the thickness of the hood plate itself is smaller than that of the corners, and the shape is substantially concave. Decorative chopsticks.

  The present invention also resides in (3) a decorative chopstick in which the outer peripheral portion of the base is press-fitted into the inner peripheral portion of the transparent container.

  The present invention also resides in (4) a decorative chopstick in which the protrusion is bonded and fixed to the hole in the head.

Further, the present invention is (5) a method of manufacturing a chopstick with a decorative body attached to the head,
1) A process of attaching a solid form part to a base (a solid form part attaching process),
2) A process of attaching a transparent hood so as to cover the solid form part on the base (transparent hood attaching process),
3) A step of filling the hole formed in the head with an adhesive (adhesive filling step),
4) A step of inserting the projection formed on the base into the hole (projection portion insertion step),
5) Step of curing the adhesive (adhesive curing step),
6) and a method for producing decorative chopsticks.

  Moreover, this invention exists in the manufacturing method of the decorative chopsticks of the said (4) description whose (6) and the volume of the hole part of a head are larger than a projection part.

  The present invention also resides in (7) the method for producing decorative chopsticks according to (5) above, wherein the adhesive filling amount is the difference between the volume of the hole in the head and the volume of the protrusion.

  In addition, as long as the objective of this invention is met, the structure which combined suitably the invention of said (1)-(7) is also employable.

  According to the decorative chopsticks of the present invention, the decorative body includes a base, a three-dimensional form part attached to the base, and a transparent hood attached to the base and covering the periphery of the three-dimensional form part. Since the protrusion is provided below and the protrusion is inserted and fixed in the hole formed in the head of the chopsticks, the three-dimensional form part and the chopstick body can be different from each other. Is possible.

Moreover, since the base is inserted and fixed in the hole in the head, mounting is easy.
In addition, since it does not come into direct contact with washing water, detergents, etc., it is avoided that the three-dimensional form part is worn out or the color is peeled off.

  In addition, the thickness of the wall of the transparent hood in the front-rear direction or the left-right direction is such that the thickness of the hood plate itself is smaller than that of the corners, and it has a substantially concave lens shape. Or even if it sees from the left-right direction, it does not look distorted.

  On the other hand, in the method of manufacturing decorative chopsticks, the filling amount of the adhesive is the difference between the volume of the hole in the head and the volume of the protrusion in the step of filling the hole formed in the head with the adhesive. Thus, even when a decorative body is attached to the head, there is no overflow of excess adhesive.

[First Embodiment]
In the following, an optimal example for carrying out the invention will be described with reference to the drawings.
FIG. 1 is a view showing a pair of decorative chopsticks provided with a decorative body.
The head of the chopstick body is provided with a decorative body (consisting of a solid form part, a base, and a transparent hood).
FIG. 2 is a development view showing the base, the three-dimensional form part, and the protective hood.
FIG. 3 is a block diagram showing steps in the method of manufacturing decorative chopsticks.
4 and 5 are explanatory diagrams showing a method for manufacturing decorative chopsticks.
In order to make decorative chopsticks, a chopstick body 4 (material chopsticks) is prepared by cutting wood into a product shape in advance.
Then, the head of the chopstick body 4 is cut by cutting or the like to form a hole (see FIG. 2).
The wood to be used at this time is not particularly limited, and mainly used are purple sand, ebony, firewood, bamboo, cedar, chestnut, willow, iron wood (lamin) iron wood, lamin, bamboo, maras and the like.

(Three-dimensional form attachment process)
On the other hand, a base 1 (comprising a base plate 1A and a protruding portion 1B formed so as to protrude therefrom) is prepared, and the three-dimensional form portion 2 is attached to the base plate 1A of the base 1 shown in FIG.

  In this case, the bottom of the three-dimensional form part 2 is bonded and fixed to the base plate 1A using the adhesive R, whereby the three-dimensional form part 2 (for example, a character image) is attached to the base plate 1A in an upright state. .

(Transparent hood attachment process)
Next, the transparent hood 3 is attached to the base 1 so as to cover the three-dimensional form part 2 (C).
As the transparent hood 3, a hood made of a cylindrical transparent plastic that is larger than the three-dimensional form portion 2 is used.

A space isolated from the outside is formed between the transparent hood 3 and the three-dimensional form portion 2.
Since the three-dimensional form part 2 is covered and sealed by the transparent hood 3, it is not directly exposed to the outside, wear due to contact is prevented, and even when washed, it may come into contact with water or the like. Absent.

In addition, the surface color of the three-dimensional form portion 2 can be clearly recognized by the space.
The attachment is performed by pressing each other so that the inner wall portion of the transparent hood 3 is press-fitted and fixed to the peripheral surface of the base plate 1A.
In this case, it is preferable to apply the adhesive R on the peripheral surface of the base plate 1A for adhesion.

  The types of resin coatings to be applied are transparent, for example, epoxy-based, urethane-based, phenol-based, acrylic-based (for example, acrylic urethane, acrylic epoxy, acrylic lacquer), polyester-based (for example, polyester urethane), moisture-cured urethane-based Resin paints such as fluororesins and lacquers are employed, and polyester resin paints are preferred from the viewpoints of high adhesive strength and good water resistance.

Next, the process proceeds to a step of attaching the decorative body A obtained through the above steps to the chopstick body 4.
Here, FIG. 5 is a diagram showing the attachment procedure.
(Adhesive filling process)
First, an adhesive R is filled in a hole 4A formed in the head of the chopstick body 4 [FIG. 5 (B) → FIG. 5 (C)].
The chopstick body 4 has a hole 4A formed in the head in advance by cutting or the like [FIG. 5 (A) → FIG. 5 (B)].
In this case, it should be noted that the filling amount W1 of the adhesive R is an amount corresponding to the difference between the volume W2 of the head hole 4A and the volume W3 of the protrusion 1B (W1 = W2−W3).

(Projection insertion process)
Next, the protrusion 1B formed on the base 1 is inserted into the hole 4A [FIG. 5 (C) → FIG. 5 (D) → FIG. 5 (E)].
As described above, since the filling amount of the adhesive R is an amount corresponding to the difference between the volume of the hole 4A at the head and the volume of the protrusion 1B, the adhesive R is inserted when the protrusion 1B is inserted into the hole 4A. Does not protrude from the hole 4A.

  Therefore, it is possible to avoid the excess adhesive RT from protruding through the gap between the base plate 1A and the top surface of the chopstick body 4.

(Adhesive curing process)
Next, the adhesive T is cured.
A more preferable method may be adopted depending on the production situation, such as when leaving for a certain period of time depending on the type of adhesive T, heating, or irradiating with ultraviolet rays.

For example, when an ultraviolet curable resin (UV resin) is used as the adhesive T, the base 1 is made of a transparent resin material.
When ultraviolet rays are irradiated from the outside, the ultraviolet rays easily reach the ultraviolet curable resin in the hole 4A through the transparent hood 3 and the base 1.

Thus, the decorative body A is attached to the head of the chopstick body 4 (see FIG. 1).
By the way, when such a decorative body A is attached to the chopstick body 4, the three-dimensional form portion 2 inside can be seen as it is through the transparent hood 3.

6 and 7 show a case where the transparent hood 3 has a cylindrical shape.
6 is a bottom view of the decorative body of FIG. 4C, and FIG. 7 is an XX cross-sectional view of the decorative body of FIG. 4C.
The thickness of the wall of the transparent hood 3 is uniform in all directions.
Therefore, it can be seen without distortion of the image when the solid form portion is viewed from any direction.

8 and 9 show a case where the transparent hood 3 has a gentle rectangular shape.
8 is a bottom view of the decorative body of FIG. 4C, and FIG. 9 is an XX cross-sectional view of the decorative body of FIG. 4C.
The thickness of the wall in the front-rear direction of the transparent hood 3 is gradually thinner than the corner, and the thickness of the wall in the left-right direction is also gradually thinner than the corner.

Since the thickness of the wall of the transparent hood 3 itself is not uniform, different lens effects can be exhibited when viewed from the front and rear surfaces or the left and right surfaces and from the corner.
Depending on the angle at which the three-dimensional form part 2 is viewed, the image of the three-dimensional form part inside is enlarged or distorted, so that the change of the image can be enjoyed.
Further, the outer shape of the transparent hood 3 is rectangular and has a slightly curved surface.
Therefore, when the decorative chopsticks of the present invention are placed on a table, they do not roll.
In addition, since the curved surface is in contact with the table surface and can be slightly swung, it is possible to enjoy distortion of the three-dimensional form part by the movement.
By the way, although the transparent hood 3 should just be able to visually recognize the internal three-dimensional form 2, the whole surface does not necessarily need to be transparent.

FIG. 10 shows a case where a pattern (in this case, a streak pattern M) is positively applied to a part of the transparent hood 3.
This pattern can bring about a unique perspective effect in harmony with the three-dimensional form part 2.
When actually using chopsticks, the relative position between the pattern of the transparent hood 3 and the three-dimensional form part is shifted, a phase difference is generated, and the three-dimensional form part 2 that has always changed can be visually recognized.

[Second Embodiment]
Next, an example of a chopstick in which the tip of such a decorative chopstick is further devised will be mentioned.
FIG. 11 is a schematic view showing the decorative chopsticks.
The decorative chopsticks are composed of a wooden chopstick body 4 and a resin portion T.

A cylindrical small protrusion 41 is formed integrally with the chopstick body 4 on the tip surface 42 of the chopstick body 4.
The resin portion T is a lump of resin formed around the small protrusions 41 by solidifying the resin into a hemispherical shape.
A method of forming the resin in a hemispherical shape around the small protrusion 41 is, for example, to apply a small amount of resin to the small protrusion 41.
By applying a small amount of resin, the resin is formed in a hemispherical shape around the small protrusion 41 due to the surface tension of the resin.

The fact that the resin part T is hemispherical itself reduces the frictional force or the collision force generated between the other parts in contact with the resin part T.
As a result, the resin portion T is unlikely to be detached from the tip portion of the chopstick body 4.

FIG. 12 is an enlarged perspective view showing the tip of the decorative chopsticks according to the present embodiment.
As shown in FIG. 12, since the resin portion T is formed so as to cover the small protrusion 41, the resin portion T exhibits a strong fixing force against the force applied from various directions. As a result, the resin portion T Is very difficult to detach from the tip.

That is, the contact area between the resin portion T and the chopstick body 4 is smaller than the contact area with the chopstick body 4 compared to the case where the resin block t (see FIG. 13) is simply formed at the tip of the decorative chopsticks. Wide by the side wall area.
As a result, the fixing force against the pulling force in the axial direction (length direction) is higher in the resin portion T of the decorative chopsticks according to the present embodiment than in the resin lump t having no small protrusions on the decorative chopsticks as shown in FIG. And the resin lump t is prevented from detaching from the tip surface 42 as shown in FIGS. 13 (A) and 13 (B).

  Since the resin portion T is formed around the small protrusion 41, the small protrusion 41 is supported even when a force is applied in the direction perpendicular to the axial direction (the direction of the distal end surface 42) (when a shearing force is applied). Since the force is exerted, the separation of the resin portion T is prevented.

  When the surface of the resin part T and the surface of the chopstick body 4 are formed flush with each other, another object is caught on the step formed at the joint between the resin part T and the chopstick body 4 and It is avoided that the resin part T is detached from the chopstick body 4.

On the other hand, as shown in FIG. 14, by applying resin to the surfaces of the chopstick body 4 and the resin portion T and forming a resin film F on the surfaces of the chopstick body 4 and the resin portion T, the joints are flush with each other. Can be completely covered.
Thereby, even if the surface of the chopstick body 4 and the surface of the resin portion T are not formed flush with each other, the step S of the joint can be eliminated.
The resin film F uses, for example, an epoxy resin as an inner layer and an acrylic urethane resin as an upper layer.

The resin used for the resin portion T is preferably non-toxic and relatively hard.
Among them, it is preferable to use an epoxy resin or a polyester resin because it is inexpensive and quick-drying and has high hardness after curing.

FIG. 15 is a plan view showing the shape of the tip of the decorative chopsticks according to the present embodiment.
As shown in the figure, the small protrusion 41 is formed upright on the distal end surface 42 of the chopstick body 4, and the diameter D1 of the small protrusion 41 is set to be shorter than the diameter D2 of the distal end surface. The area of the tip surface 42 of the chopstick body 4 is smaller.
The cross-sectional area of the small protrusion 41 is preferably 5% or more of the area of the tip surface of the chopstick body 4 from the viewpoint of shearing support force, and is 30% or less from the viewpoint of forming a hemisphere by the resin portion T. It is preferable.

The position where the small protrusion 41 is formed may be any position on the tip surface 42, but is preferably formed at the center of the tip surface 42.
When the small protrusion 41 is formed at the center of the tip surface 42, the shape of the resin portion T tends to be a uniform hemisphere as compared with the case where the small protrusion 41 is formed at a position shifted from the center.

If the length of the small protrusion 41 is larger than the radius of the tip surface 42, the shape of the resin portion T becomes a hemisphere with a high height, and conversely if it is smaller than the radius of the tip surface 42, it tends to be a hemisphere with a low height. .
Based on this, the length of the small protrusion 41 is determined as appropriate.

FIG. 16 is an explanatory diagram illustrating some modified examples of the small protrusions.
As shown in the figure, the shape of the cross-section of the small protrusion 41 is not limited, and may be a rectangle as shown in FIG. 16A, a square as shown in FIG. Alternatively, a cross shape as shown in FIG.
From the viewpoint of forming the small protrusions, the cross section is more preferably circular.

Although the present invention has been described above, the present invention is not limited to the embodiments and can be modified as long as the object is met.
For example, various three-dimensional ornaments can be adopted as the three-dimensional form part in addition to the character image.

In addition, the base 1 for attaching the three-dimensional form portion 2 is better if it is a shape that is difficult to be removed.
For example, as shown in FIG. 17, the protrusion 1B has a thick tip (A), the protrusion 1B is formed with a link-like rib 11 (B), and the protrusion 1B is provided with a through hole 12 (C) is adopted.

FIG. 1 is a view showing a pair of decorative chopsticks provided with a decorative body. FIG. 2 is a development view showing the base, the three-dimensional form part, and the protective hood. FIG. 3 is a block diagram showing steps in the method of manufacturing decorative chopsticks. FIG. 4 is a process diagram illustrating the steps in the method of manufacturing decorative chopsticks. FIG. 5 is a process diagram illustrating steps in the method of manufacturing decorative chopsticks. FIG. 6 is a bottom view of a decorative body in which the transparent hood of FIG. 4C has a cylindrical shape. FIG. 7 is an XX cross-sectional view of the decorative body of FIG. FIG. 8 is a bottom view of the decorative body in which the transparent hood of FIG. 4C has a rectangular shape. FIG. 9 is an XX cross-sectional view of the decorative body of FIG. FIG. 10 is an example in which a pattern is given to a part of the transparent hood. FIG. 11 shows a chopstick in which the tip of the decorative chopstick is further devised. FIG. 12 is an enlarged perspective view of the tip of the decorative chopsticks. FIG. 13 is a view in which the resin lump is detached from the decorative chopsticks. FIG. 14 is a diagram illustrating the relationship between the tip surface and the small protrusions in the decorative chopsticks. FIG. 15 is a plan view showing the shape of the tip of the decorative chopsticks. FIG. 16 is an explanatory diagram illustrating some modified examples of the small protrusions. FIG. 17 is a diagram illustrating a modification of the base.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base 1A ... Base plate 1B ... Protrusion part 11 ... Rib 12 ... Through-hole 2 ... Solid form part 3 ... Transparent hood 4 ... Chopstick body 41 ... Small protrusion 42 ... Tip surface 4A ... Hole A ... Decoration body F ... Resin film M ... Streaked pattern R ... Adhesive S ... Stepped portion T ... Resin portion t ... Resin lump

Claims (7)

  A chopsticks with a decorative body attached to the head, the decorative body comprising a base, a three-dimensional form attached to the base, and a transparent hood attached to the base and covering the periphery of the three-dimensional form, The decorative chopsticks are characterized in that a projecting portion projects downward from the base, and the projecting portion is inserted and fixed in a hole formed in the head of the chopsticks.   The decorative chopsticks are characterized in that the wall of the transparent hood in the front-rear direction or the left-right direction has a hood plate itself that is thinner than the corners and has a substantially concave lens shape.   A decorative chopstick, wherein the outer peripheral portion of the base is press-fitted into the inner peripheral portion of the transparent container.   A decorative chopstick characterized in that the protrusion is bonded and fixed to the hole in the head. A method of manufacturing chopsticks with a decorative body on the head,
1) A process of attaching a solid form part to a base (a solid form part attaching process),
2) A process of attaching a transparent hood so as to cover the solid form part on the base (transparent hood attaching process),
3) A step of filling the hole formed in the head with an adhesive (adhesive filling step),
4) A step of inserting the projection formed on the base into the hole (projection portion insertion step),
5) Step of curing the adhesive (adhesive curing step),
6) A method for producing decorative chopsticks, characterized in that   5. The method for manufacturing decorative chopsticks according to claim 4, wherein the volume of the hole in the head is larger than the protrusion.   6. The method for manufacturing decorative chopsticks according to claim 5, wherein the filling amount of the adhesive is a difference between the volume of the hole in the head and the volume of the protrusion.

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