JP3139283U - Split chopsticks - Google Patents

Abstract

A split chopstick is provided in which the material at the end of the split portion is not exposed and worn.
A wooden chopstick tip 1, a wooden chopstick holder 2, a first joint 3 attached to the rear end of the chopstick tip, and a second joint 4 attached to the front end of the chopstick holder 2. A chopstick tip insertion hole 31 through which the first joint 3 inserts and fixes the rear end of the chopstick tip body 1 with an adhesive, and a female screw portion 32 into which the second joint 4 is screwed. A male screw part 22 into which the second joint 4 is inserted into the female screw part 33 of the first joint 3, and a chopstick holder insertion hole 41 for inserting and fixing the front end of the chopstick holder 2 with an adhesive R. Split chopsticks with.
[Selection] Figure 2

Description

  The present invention relates to a splittable chopsticks.

In recent years, with increasing environmental awareness, an increasing number of people come to restaurants with chopsticks.
Under such circumstances, divided chopsticks that are convenient to carry are gaining popularity.
Examples of this kind of divided chopsticks include those disclosed in Patent Documents 1 and 2.

The divided chopsticks described in Patent Document 1 includes an upper half and a lower half, and an insertion protrusion is formed in the lower half and an insertion hole is integrally formed in the upper half.
And an upper half part and a lower half part can be connected by inserting an insertion protrusion into an insertion hole.
However, in the state divided into two, the insertion protrusions and insertion holes formed in the lower half and the upper half are exposed, so if the material of the chopsticks is wood, if it hits something, It is easy to deform and wears quickly.

Further, the divided chopsticks described in Patent Document 2 use a connecting pipe which is another coupling means, and has a structure in which the lower and upper sections are connected via the connecting pipe.
However, when this is also divided into two parts, the respective connecting shafts formed in the lower and upper sections are exposed.
Any of the above-described divided chopsticks does not require a strong force, can be easily attached and detached, and has the advantage of being small and easy to carry by dividing.
When the pulling force is applied in the connected state, it is easy to come off, and in the two separated state, the insertion protrusion is exposed and wears down or is easily deformed when it hits something.
This is especially true when the material is wood.
However, there are some that have been subjected to curing treatment on the exposed part, but the effect is limited.
Japanese Patent Laid-Open No. 4-48870 Utility Model Registration No. 3131263

The present invention has been made in order to solve technical problems in such a background.
That is, an object of the present invention is to provide a divided chopstick that does not expose and wear the material at the end of the divided portion.

  As a result of intensive research based on the background of the above problems, the present inventor performs uneven processing on the end of the chopstick tip (or chopstick holder) and the surface of the joint attached to the end. The inventors have found that the above problems can be solved, and have completed the present invention based on the knowledge.

  That is, the present invention includes (1) a wooden chopstick tip, a wooden chopstick holder, a first joint attached to the rear end of the chopstick tip, and a second joint attached to the front end of the chopstick holder. The first joint includes a chopstick tip insertion hole for inserting and fixing the rear end of the chopstick tip through an adhesive, and a female screw portion for screwing the second joint, A split chopstick is provided with a male screw portion into which the joint is inserted into the female screw portion of the first joint and a chopstick holder insertion hole for inserting and fixing the front end of the chopstick holder through an adhesive.

  The present invention also resides in (2) the divided chopsticks according to the above (1), wherein the rear end of the chopstick tip has an uneven portion and the chopstick tip insertion hole has a female screw portion.

  The present invention also resides in (3) the divided chopsticks described in (2) above, wherein the concavo-convex portion at the rear end of the chopstick tip is a male screw shape.

  Further, the present invention resides in (4) the divided chopsticks described in (2) above, wherein the concavo-convex portion at the rear end of the chopstick tip has a spline shape.

  The present invention also resides in (5) the divided chopsticks according to (2) above, wherein the concavo-convex portion at the rear end of the chopstick tip has a multi-groove shape.

  Further, according to the present invention, (6) a tapered portion is formed at the opening of the female thread portion of the first joint, and a tapered portion is formed at the root of the male thread portion of the second joint, and the male thread portion is formed at the female thread portion. In the divided chopsticks described in the above (1), the two tapered portions are pressed against each other when the screw is screwed.

  Further, according to the present invention, (7) a taper portion is formed at the opening of the female screw portion of the first joint, and a taper portion is formed at the root of the male screw portion of the second joint. The taper portion and the taper portion at the base of the male screw portion have different taper angles, and when the male screw portion is screwed to the female screw portion, an elastic action occurs between the two taper portions (1) It exists in the split chopsticks described.

  The present invention also resides in (8) the divided chopsticks described in (3) above, wherein the concavo-convex portion at the rear end of the chopstick tip can be inserted into the chopstick tip insertion hole without rotating the chopstick tip.

  Further, the present invention (9) is such that the concavo-convex portion at the rear end of the chopstick tip is formed as a slit-like groove, and a projection is formed in the chopstick tip insertion hole of the first joint, and the projection fits into the groove. In the divided chopsticks described in (1) above.

  Further, the present invention is (10), wherein the concavo-convex portion at the rear end of the chopstick tip is formed as an L-shaped slit-shaped groove, and a protrusion is formed in the chopstick tip insertion hole of the first joint. The divided chopsticks described in the above (1) are adapted to be fitted into the bent tip of the groove.

  In addition, as long as the objective of this invention is met, the structure which combined said idea suitably can also be employ | adopted.

The chopstick tip 1 includes a first joint attached to the rear end of the chopstick tip and a second joint attached to the front end of the chopstick holder, and the first joint and the second joint are screwed in. The material portion at the rear end and the material portion at the front end of the chopstick holder are hidden by the first joint and the second joint 4 and are not exposed.
Therefore, wear is prevented.

Since the rear end of the chopstick tip has an uneven portion and the chopstick tip insertion hole of the first joint has a screw portion, the chopstick tip and the first joint are firmly fixed and cannot be removed.
A tapered portion 32A is formed at the opening of the female threaded portion 32 of the first joint 1 and a tapered portion 42A is formed at the root of the male threaded portion 42 of the second joint, and the male threaded portion 42 is screwed into the female threaded portion 32. When the two taper portions are pressed against each other, the contact area is increased. As a result, the frictional force generated between the two taper portions is increased, and the screwing is hardly loosened.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary.
In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.
Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified.
Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

(First embodiment)
FIG. 1 is a front view showing the divided chopsticks of the present embodiment.
The divided chopsticks A of the present embodiment are separable and can be connected to each other. Therefore, the divided chopsticks A are more portable than ordinary chopsticks that do not have such a structure.

Further, in the divided chopsticks A of the present embodiment, the material at the connecting end of the chopstick tip 1 and the connecting end of the chopstick holder 2 is not exposed. In addition, the connection structure between the chopstick tip 1 and the first joint 3 or the connection structure between the chopstick holder 2 and the second joint 4 is devised so that the chopstick tip 1 and the first joint 3 are securely connected. Integrate.
Similarly, the chopstick holder 2 and the second joint 4 are also securely integrated.

  When the chopstick tip 1 and the chopstick holder 2 are connected and tightened, the first joint 3 is not detached from the chopstick tip 1 or the second joint is not detached from the chopstick holder 2.

Next, the divided chopsticks A will be specifically described.
FIG. 2 is a cross-sectional development view showing the main part of the divided chopsticks of this embodiment.
FIG. 3 is a cross-sectional view showing the main part of the divided chopsticks of this embodiment.
As shown in FIGS. 2 and 3, the divided chopsticks A according to this embodiment includes a wooden chopstick tip 1 and a wooden chopstick holder 2.
A first joint 3 is attached and fixed to one rear end 11 of the chopstick tip 1, and a second joint 4 is attached and fixed to one end 21 of the chopstick holder 2.
The rear end 11 of the chopstick tip 1 and the end 21 of the chopstick holder 2 are formed with a diameter smaller than their adjacent portions.

When the first joint 3 is attached and fixed, the rear end 11 is reduced in diameter so that the first joint 3 and the chopstick tip 1 are flush with each other. Similarly, when the second joint 4 is attached, The end 21 is reduced in diameter so that the joint 4 and the chopstick holder 2 are flush with each other.
Thus, the material portion of the rear end 11 of the chopstick tip 1 and the material portion of the end portion 21 of the chopstick holder 2 are hidden by the first joint 3 and the second joint 4 and are not exposed.

  As the chopstick tip 1 and chopstick holder 2, wood such as rosewood, ebony, cocoon, bamboo, cedar, chestnut, willow, iron eye (urine), etc. is adopted.

The first joint 3 and the second joint 4 correspond to coupling means for connecting the chopstick tip 1 and the chopstick holder 2, and the first joint 3 and the second joint 4 are screwed together. Combined.
The first joint 3 includes a chopstick tip insertion hole 31 into which the rear end 11 of the chopstick tip 1 is inserted and fixed, and a female screw portion 32 into which the second joint 4 is screwed.
A tapered portion 32 </ b> A is formed at the opening of the female screw portion 32.

In the first joint 3, the chopstick tip insertion hole 31 and the female screw portion 32 communicate with each other.
By connecting the chopstick tip insertion hole 31 and the female screw portion 32 in this way, when the chopstick tip 1 and the first joint 3 are fixed with the adhesive R, the surplus adhesive is not on the chopstick tip side. It can be discharged into the female screw portion 32 and the surface of the chopstick tip 1 can be prevented from being soiled.

The second joint 4 includes a chopstick holder insertion hole 41 into which the end portion 21 of the chopstick holder 2 is inserted, and a male screw portion 42 for screwing into the first joint 3.
A tapered portion 42 </ b> A is formed at the base of the male screw portion 42.
Since the taper angle of the taper portion 32A of the first joint 3 and the taper angle of the taper portion 42A at the root of the male screw portion 42 are the same, when the first joint 3 and the second joint are screwed together, Both taper parts are in pressure contact with each other.
Since the two taper portions are in pressure contact with each other, the contact area is increased. As a result, the frictional force generated between the two taper portions is increased, and the screwing is hardly loosened.
On the other hand, in the second joint 4, the chopstick holder holding hole 41 and the male screw portion 42 are formed in communication.
The effect of communicating the chopstick holding body insertion hole 41 and the male screw portion is that the excess adhesive can be discharged into the second joint 4 instead of the chopstick holding body side as described above.

Next, a connection structure between the chopstick tip 1 and the first joint 3 will be described.
As shown in FIG. 3, a male screw-shaped uneven portion 12 is formed on the outer periphery of the rear end 11 of the chopstick tip 1, and is formed on the inner peripheral surface of the chopstick tip insert hole 31 of the other first joint 3. Is formed with a female screw portion 33.
However, the outer diameter of the rear end 11 of the chopstick tip 1 is smaller than the inner diameter of the chopstick tip insertion hole 31.

  Therefore, when the first joint 3 is attached to the chopstick tip 1, the ridges 12 and the female threads 33 do not get caught, so the chopstick tip 1 is moved straight and the chopstick tip is moved. It can be inserted into the insertion hole 31.

When the first joint 3 is attached to the chopstick tip 1 using the adhesive R, the uneven portion is formed on the layer of the adhesive R formed between the first joint 3 and the rear end 11 of the chopstick tip 1. 12 and the female thread portion 33 bite in, and the anchor effect is accurately exhibited.
As a result, the first joint 3 is firmly fixed to the rear end 11 of the chopstick tip 1.

The connection structure between the chopstick holder 2 and the second joint 4 is the same as the connection structure between the chopstick tip 1 and the first joint 3, and an uneven portion 22 is formed on the outer periphery of the end 21 of the chopstick holder 2. A female thread portion 43 is formed on the inner peripheral surface of the chopstick holder insertion hole 41 of the second joint 4.
The outer diameter of the end 21 is smaller than the inner diameter of the chopstick holder insertion hole 41.
When attaching the second joint 4 to the chopstick holder insertion hole 41, the crests of the concavo-convex part 22 and the crests of the female screw part 43 do not catch each other. It can be inserted into the insertion hole 31.
Therefore, when the second joint 4 is attached to the end portion 21 using the adhesive R, the second joint 4 is firmly attached to the end portion 21 of the chopstick holder 2 for the same reason as that of the first joint 3 described above. Fixed.

(Second embodiment)
FIG. 4 is an explanatory diagram showing a connection structure between the chopstick tip and the first joint 3 according to the present embodiment.
Note that the connection structure between the chopstick holder 2 and the second joint 4 is the same as the connection structure of the chopstick tip 1 and the first joint, and thus the description thereof is omitted.
In the outer periphery of the rear end 11 of the chopstick tip 1 of the present embodiment, a plurality of grooves 12 (concave / convex portions 12) that make a round of the entire outer periphery along the circumferential direction are formed.
On the other hand, a female thread portion 33 is formed in the chopstick tip insertion hole 31 of the first joint 3.

When the first joint 3 is attached to the chopstick tip 1 using the adhesive R, the groove 12 (uneven portion 12) of the rear end 11 of the chopstick tip 1 and the chopstick tip insertion hole 31 of the first joint 3 An adhesive R enters between the female screw portions 33, and an anchor effect is exhibited.
Therefore, the first joint 3 is securely fixed to the chopstick tip 1.
In this embodiment as well, the outer diameter of the rear end 11 of the chopstick tip 1 is smaller than the inner diameter of the first joint 3, so the first joint 3 moves straight toward the chopstick tip 1. You can insert it smoothly.

(Third embodiment)
The direction in which the grooves 12 (uneven portions 12) are formed is not limited to the circumferential direction of the rear end 11, but may be a so-called spline shape formed in the length direction as shown in FIG.
In this case, when the first joint 3 is attached to the chopstick tip 1 using the adhesive R, the groove 12 at the rear end 11 of the chopstick tip 1 and the female screw of the chopstick tip insertion hole 31 of the first joint 3 are used. The adhesive R enters between the portion 33 and the anchor effect is exhibited.
In this case, since the groove 12 and the screw portion are substantially orthogonal, the rotational resistance is strong.
Specifically, holding the chopstick tip 1 with one hand, holding the chopstick holder 2 with the other hand, and trying to rotate the chopstick holder 2, the first joint 3 also tries to rotate in that direction. To do.
For this reason, the first joint 3 acts so as to rotate with respect to the chopstick tip 1, but a sufficient rotational resistance acts and the chopstick tip 1 and the first joint 3 come off (the adhesive R is peeled off). There is no such thing.

(Fourth embodiment)
Moreover, as shown in FIG. 6, the uneven | corrugated | grooved part 12 (namely, groove | channel 12) of the rear end 11 of the chopstick tip 1 may be formed in the diagonal direction.
An adhesive R enters between the groove 12 and the female thread portion 33 of the chopstick tip insertion hole 31 of the first joint 3 to exert an anchor effect.
Also in this case, since the groove 12 and the female thread portion 33 cross each other, the rotational resistance is strong.

(Fifth embodiment)
As shown in FIG. 7, the concavo-convex portion 12 (that is, the slit-shaped groove 12) of the rear end 11 of the chopstick tip 1 is formed in the length direction, and a protrusion 31 A is formed in the chopstick tip insertion hole 31 of the first joint 3. It is also possible to form the protrusion 31 </ b> A in the groove 12. Here, the groove 12 may be one or plural.
In that case, the protrusion 31 </ b> A matches the number of the grooves 12. An adhesive R enters between the groove 12 and the chopstick tip insertion hole 31 to exert an anchor effect.
In this embodiment, since the protrusion 31A fits into the groove 12, it is reliably prevented that the chopstick tip body 1 and the first joint 3 are detached by the turning force.
The method of forming the protrusion 31A can be appropriately performed by a method of press-fitting a pin from the surface, a method of welding and fixing the pin, or the like.

(Sixth embodiment)
As shown in FIG. 8, the concavo-convex portion 12 of the chopstick tip 1 is an L-shaped slit-shaped groove 12 formed in the length direction and slightly bent at the tip.
A protrusion 31A is formed in the chopstick tip insertion hole 31 of the first joint 3 so that the protrusion 31A fits into the groove 12.
In this case, one groove 12 is preferable.
In this case, by inserting the chopstick tip 1 into the chopstick tip insertion hole 31 of the first joint 3 and rotating it slightly, the protrusion 31A fits into the bent tip of the groove 12 and the retaining is ensured.
The adhesive R enters between the groove 12 and the chopstick tip insertion hole 31 to exert an anchor effect. However, since the protrusion 31A is fitted into the bent tip of the L-shaped slit-like groove 12, the chopstick tip 1 and It is reliably prevented that the first joint 3 is detached by the pulling force.

(Seventh embodiment)
Further, as shown in FIG. 9, the shape of the concavo-convex portion 12 formed at the rear end 11 of the chopstick tip 1 is made into a male screw, and the male screw is gently screwed into the female screw portion 33 of the first joint 3.
Here, it is assumed that the concave and convex portion 12 and the female screw portion 33 have play unlike ordinary screwing.
An adhesive R enters between the concave and convex portion 12 of the chopstick tip 1 (that is, a male screw) and the female screw portion 33 of the chopstick tip insertion hole 31 of the first joint 3 to exert an anchor effect.
In this case, in addition to exerting the anchor effect, it is possible to almost certainly prevent the axial direction from coming off.

(Eighth embodiment)
Moreover, the taper part of taper part 32A formed in the opening part of the internal thread part 32 of the 1st joint 3 which is not shown in figure, and the taper part formed in the root of the external thread part 42 of the 2nd joint 4 is shown. If both joints are formed so that the taper angle of 42A is different, it becomes difficult to come off when the joints are joined together.
More specifically, by forming the angle of the tapered portion 32A smaller than the angle of the tapered portion 42A, the joints are joined while the tapered portion 32A is slightly elastically deformed.
Therefore, the tapered portion 32 </ b> A presses the tapered portion 42 </ b> A with a restoring force, and an elastic force is generated between the first joint 3 and the second joint 4.
As a result, the first joint 3 and the second joint 4 are not loosened.
Further, when the second joint 4 is tightened with respect to the first joint 3, the last hit becomes soft.

As mentioned above, although this invention was demonstrated to the one embodiment as an example, this invention is not limited only to embodiment mentioned above, A various deformation | transformation is possible.
Needless to say, the connection structure between the chopstick tip 1 and the first joint 3 described in each embodiment is naturally applicable to the connection structure of the chopstick tip 1 and the first joint.

FIG. 1 is a front view showing the divided chopsticks of the first embodiment, where (A) shows before separation and (B) shows after separation. FIG. 2 is a cross-sectional development view showing a main part of the divided chopsticks of the first embodiment. FIG. 3 is a cross-sectional view showing a main part of the divided chopsticks of the first embodiment. FIG. 4 is an explanatory view showing a connection structure between the chopstick tip and the first joint according to the second embodiment. FIG. 5 is a cross-sectional development view showing a main part of the divided chopsticks of the third embodiment. FIG. 6 is a cross-sectional development view showing a main part of the divided chopsticks of the fourth embodiment. FIG. 7 is a cross-sectional development view showing a main part of the divided chopsticks of the fifth embodiment. FIG. 8 is a cross-sectional development view showing the main part of the divided chopsticks of the sixth embodiment. FIG. 9 is a cross-sectional development view showing the main part of the divided chopsticks of the seventh embodiment.

Explanation of symbols

A ... Divided chopstick 1 ... Chopstick tip 11 ... End 12 ... Uneven portion (groove, slit groove, L-shaped slit groove)
2 ... Chopstick holder 21 ... End 22 ... Male thread 3 ... First joint 31 ... Chopstick tip insertion hole 31A ... Protrusion 32 ... Female thread 32A .... Tapered part 33 ... Female thread part 34 ... Groove 4 ... Second joint 41 ... Chopstick holder insertion hole 42 ... Male thread part 42A ... Taper part 43 ... Male Screw part R ... Adhesive

Claims (10)

A wooden chopstick tip,
With wooden chopsticks
A first joint attached to the rear end of the chopstick tip;
A second joint attached to the front end of the chopstick holder,
The first joint includes a chopstick tip insertion hole for inserting and fixing the rear end of the chopstick tip through an adhesive, and a female screw portion for screwing the second joint,
A split chopstick, comprising: a male screw portion into which the second joint is inserted into the female screw portion of the first joint; and a chopstick holder insertion hole for inserting and fixing the front end of the chopstick holder through an adhesive.   2. The divided chopsticks according to claim 1, wherein the rear end of the chopstick tip has an uneven portion, and the chopstick tip insertion hole has a female screw portion.   3. The divided chopsticks according to claim 2, wherein the concavo-convex portion at the rear end of the chopstick tip has a male screw shape.   3. The divided chopsticks according to claim 2, wherein the uneven portion at the rear end of the chopstick tip has a spline shape.   The divided chopsticks according to claim 2, wherein the concavo-convex portion at the rear end of the chopstick tip has a multi-groove shape.   When the taper portion is formed at the opening of the female screw portion of the first joint, and the taper portion is formed at the root of the male screw portion of the second joint, and when the male screw portion is screwed to the female screw portion, both tapers The divided chopsticks according to claim 1, wherein the portion is pressed.   A tapered portion is formed at the opening of the female screw portion of the first joint, and a tapered portion is formed at the root of the male screw portion of the second joint, and the tapered portion of the opening portion of the female screw portion and the root of the male screw portion are formed. 2. The divided chopsticks according to claim 1, wherein the taper portion has a different taper angle, and when the male screw portion is screwed to the female screw portion, a pressure acting action is generated between both taper portions.   4. The divided chopsticks according to claim 3, wherein the uneven portion at the rear end of the chopstick tip can be inserted into the chopstick tip insertion hole without rotating the chopstick tip.   2. The concavo-convex portion at the rear end of the chopstick tip is formed as a slit-like groove, and a projection is formed in the chopstick tip insertion hole of the first joint, and the projection is fitted into the groove. Split chopsticks as described.   The concavo-convex portion at the rear end of the chopstick tip is formed as an L-shaped slit-shaped groove, and a projection is formed in the first joint chopstick tip insertion hole so that the projection fits into the bent tip of the L-shaped slit-shaped groove. The divided chopsticks according to claim 1, wherein the divided chopsticks are used.

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