JP2008000298A - Chopsticks for training manner of holding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide chopsticks capable of helping train a desirable and fine manner of holding chopsticks and a way of the use in a short time. <P>SOLUTION: Protruded parts (11, 11a-11e) are formed on a part of at least an action side chop stick (10), which is to be held by the thumb (2) and the forefinger (4) in the use. Tops of the parts (11, 11a-11e) are formed into round projections. A user is able to recognize the parts (11, 11a-11e) through the tops coming in contact with at least the cushion face (301) of the thumb (2) at a small area. In the use, the parts (11a-11e) are held by appropriate positions of the cushion face (301) of the thumb (2) and that of the forefinger (4). Thereby the parts (11a-11e) are retained as the pivot of a swinging action of the chopstick (10). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure of a chopstick, and in particular, in a chopstick composed of a pair of chopstick sticks of a pair of a fixed chopstick stick and an operation chopstick stick, a raised portion serving as a fulcrum for a swing operation is provided on the operation chopstick stick. In addition, a non-slip surface is preferably provided on the fixed chopsticks bar so that the position where the chopsticks are held can be accurately identified, and the principle of how to hold and use the chopsticks can be easily learned. Concerning the structure of chopsticks.

The present inventor has the opportunity to attend many banquets and dinners. At that time, when observing how the mate's chopsticks are held and how to use them, most of them are inaccurate and look bad. Often they do not realize that they are strange.
The inventor investigated hundreds of chopsticks patents in Japan and abroad, and most of them use some kind of auxiliary equipment to make it easier to hold chopsticks and to ensure stability when holding them. It is. They are not intended for the user to learn the correct usage of chopsticks or the beauty of their appearance when used, so removing the auxiliary equipment has not learned how to hold chopsticks correctly, and in some cases There is even the problem of wearing the wrong way of holding.
Chopsticks using these conventional auxiliary tools have a state of use like grilled meat sandwiches (or tweezers). Therefore, a beautiful way of holding like an original chopsticks is impossible and traditional. There was a problem of destroying the unique form of chopsticks.

Generally, fingers are soiled with oil during meals, so the chopsticks are slippery from the fingers, and each time the food is sandwiched, the position of holding the chopsticks is always adjusted or used consciously.
For this reason, in the chopsticks described in Patent Documents 1 to 4 below, a structure in which a concave portion is formed at a position where a finger is attached so that the position where the chopstick is held does not move unintentionally is disclosed.
Alternatively, in Patent Document 5 below, an annular protrusion is formed at a position where the finger on the side of the chopstick is not touched, and when the chopstick is placed on the table, the protrusion becomes a support for the chopstick. A chopstick that has been improved in terms of hygiene by preventing the tip of the chopstick from coming into contact with the table is disclosed.
However, none of the chopsticks disclosed in these patent documents has a structure and function suitable for learning how to hold chopsticks correctly and how to use them beautifully.

The knives and forks used by Westerners are like a kind of weapon that has been miniaturized to fit the dietary culture.
On the other hand, chopsticks have been used in the same way as in the past, more than 3500 years after being invented in China.
Today, however, the correct use of chopsticks is due to the fact that parents are less enthusiastic about teaching their children at home and teachers are not teaching students at school. Can no longer learn how and how to use.

Chopsticks is a traditional Chinese culture, and its use is a kind of art, and it can be used not only by Chinese or Orientals, but also by foreigners to learn how to use it. I often want to.
However, it is very difficult to learn how to use and use chopsticks accurately and visually, and both the teaching side and the teaching side are often confused.
The reason for this is that usually there are no landmarks or additional structures on the chopsticks, and there are generally no facilities or environment to learn this, and the time for meals is limited. It is difficult to teach how to hold chopsticks accurately during a short meal. It is difficult for the instructed side to know exactly how to hold chopsticks correctly and how to use them.

Various chopstick auxiliary devices for solving such problems are disclosed in a number of patents in Japan and overseas as shown in Patent Documents 6 to 8 below, for example.
However, these auxiliary tools for chopsticks are such that a pair of chopsticks are connected so as to be able to swing with each other like tweezers or grilled meat sandwiches, so that the original form of chopsticks has been lost.
Alternatively, there are chopsticks that use detachable auxiliary tools, which are attached and removed when a person who learns how to hold chopsticks uses them and removes them during normal use. , The work of attaching and detaching is troublesome.
These linking and detachable auxiliary devices are additionally mounted on the chopstick body, and thus impair the form inherent to the chopsticks, and are therefore also artistic features inherent to the chopsticks. The characteristics are also lost.

JP-A-10-313998 Japanese Utility Model Publication No. 7-1459 Utility model registration No. 3089628 Utility model registration No. 3061045 Japanese Utility Model Publication No. 5-21772 JP 2003-275085 A JP 2001-269257 A Taiwan Utility Model Registration No. 78343

  The inventor wants to develop a chopstick that can easily learn how to use and use chopsticks correctly and how to use the chopsticks without destroying the inherent form of the chopsticks, without using the above-mentioned auxiliary tools. That is.

  Based on the results of ergonomic analysis and research on human hands and fingers, the present invention holds the fixed chopsticks of a pair of chopsticks so as not to move, and the other operation chopsticks. For sticks, the basic way of holding chopsticks is to pinch the food by swinging it with the thumb holding part as the central fulcrum according to the size of the food and the distance of the gripping position with the chopsticks. Another object of the present invention is to provide a chopstick that can be beautifully operated in a stable state.

In addition, the present invention enables a user or a beginner of chopsticks to accurately grasp the position where the chopsticks should be held, and to easily and quickly learn the operation and usage principle, as well as grilled meat sandwiching (or tweezers). An object of the present invention is to provide a chopstick that does not cause a false idea about how to use the chopstick, like a conventional chopstick for beginners.
In addition, by providing such chopsticks, the present inventor contributed to society in a different direction from elaborate and expensive chopsticks, and at the same time, an opportunity for social joint research on elegant chopstick culture. I want to be.

In order to make the explanation easy to understand and accurate, the names and definitions of each part of the finger in the description of the present specification and the claims are described below. The parentheses after each name are academic (anatomical etc.) designations.
[1] Regarding the “nodes” of the fingers, in the fingers other than the thumb, “first phalanx (end node)”, “second phalanx (middle node)”, “third phalanx” (base The joint between the first and second phalanges is referred to as “first joint (distal joint / DIP joint)”, and the second and third fingers. The joint between the nodes is called “second joint (proximal joint / PIP joint)”, and the joint at the base of the third phalanx is called “third joint (carpal joint / MP joint)”.
[2] On the other hand, “nodes” of the thumb are referred to as “first phalanx (end node)” and “second phalanx (base node)” in order from the distal end side, and “joint” is the above-mentioned first joint. The joint between the phalanx and the second phalanx is referred to as “first joint (IP joint)”, and the joint at the base of the second phalanx is referred to as “second joint (carpal joint / MP joint)”.

Thus, in order to achieve the above object, the chopsticks for learning how to hold according to the present invention are:
In chopsticks consisting of a pair of chopsticks on the operation side and fixed chopsticks;
At least the chopsticks on the operating side should be sandwiched between the thumb and forefinger when in use, and a ridge is formed on the top of the ridge. Configured to allow the user to recognize the protuberance by touching the area;
In use, by holding the raised portion between the abdominal surface of the first phalanx of the thumb and an appropriate portion of the abdominal surface from the first joint to the second phalange of the index finger, the raised portion is held on the operation side chopstick stick. Hold the tip of the chopsticks on the operation side as a center fulcrum for the swinging operation of the index finger and the first finger of the middle finger, and bend and extend the index finger and middle finger. By doing so, the operation side chopsticks are configured to be swung with the raised portion as a center fulcrum;
It is characterized by.

The raised portion can be formed as a semi-cylindrical or mountain-shaped protrusion with a rounded top provided on the side surface of the chopstick stick.
In this case, the bulging portion formed of the semi-cylindrical or mountain-shaped projection is formed by forming a concave groove around a portion where the bulging portion is to be formed on a part of two opposing side surfaces of the chopstick stick. Alternatively, it may be configured such that a part of two opposing side surfaces of the chopstick stick protrudes higher than the side surface.

Furthermore, the raised portion can be formed as an annular ridge having an arcuate cross section surrounding the outer periphery of the chopstick bar.
In that case, the raised portion formed of the annular ridge is formed by forming recessed portions on both sides of the portion where the raised portion is to be formed on a part of the outer periphery of the chopstick stick, or alternatively, It is possible to form a part of the outer peripheral surface by projecting it higher than the outer peripheral surface.

As for the dimension of the raised portion, it is desirable that the length in the axial direction of the chopstick stick at the rising start portion is 1.0 mm or more and 15.0 mm or less. If the length in the axial direction is less than 1.0 mm, it may be too small to be identified with a finger. Conversely, if it exceeds 15.0 mm, it is too large to specify the position to be pressed with the finger. Because.
Further, the height from the rising start position of the raised portion to the apex is preferably 0.5 mm or more and 5.0 mm or less. If this height is less than 0.5 mm, it may be too small to be identified with a finger. Conversely, if it exceeds 5.0 mm, it will be too large and the appearance will be damaged. It is because it becomes.
When the raised portion is a mountain-shaped protrusion, the length of the rising start portion of the protrusion in the width direction of the chopstick stick is preferably 1.0 mm or more and not more than the thickness of the chopstick stick. If the length of the protrusion in the width direction of the chopstick stick is less than 1.0 mm, it may be too small to be identified with a finger, and even if it is large, it is impossible to exceed the thickness of the chopstick stick. It is.

  The raised portion can be formed integrally with the chopstick stick, or can be formed as a member separate from the chopstick stick and attached to the chopstick stick.

  In a preferred embodiment, a raised portion similar to the raised portion on the operation side chopstick bar is also provided on the fixed side chopstick bar at the same position (ie, symmetrical position) as the operation side chopstick bar.

It is recommended to form a non-slip surface for confirming the support position and preventing slipping on the support part of the fixed chopstick stick with the ring finger.
An anti-slip surface similar to the anti-slip surface on the fixed chopsticks may be provided on the operation side chopsticks at the same position as the fixed chopsticks.
The anti-slip surface can be an annular unevenness surrounding the outer peripheral surface of the chopstick stick.

  For beginners such as infants, a thumb positioning member is provided on the chopstick tip side of the raised portion on the operation side chopstick stick, the positioning member has a slope facing the raised portion, and the first finger of the thumb is provided. When the abdominal surface of the node is brought into contact with the raised portion, the side surface of the first phalanx opposite to the index finger comes into contact with the inclined surface, so that the first phalanx of the thumb can be easily connected to the chopsticks. It is also recommended to configure it so that it is set correctly at the position with

  Furthermore, positioning members are respectively provided at the formation position of the anti-slip surface of the fixed side chopsticks and the pinching portion sandwiched between the thumb and the base portion 6 of the index finger, and the anti-slip surface is formed at the position where the anti-slip surface is formed. It is also recommended to have a configuration in which a pair of finger stop ridges are formed on the provided positioning member at a predetermined interval for holding the first phalanx of the ring finger at a fixed position.

  In order to prevent the thumb from opening greatly from the index finger during use of the chopsticks, a rubber band to be worn so as to hang from the base of the thumb to the palm and back of the hand, and an index finger to prevent the index finger and the middle finger from separating. You may make it provide the rubber band with which a middle finger is bundled, and the rubber band with which a ring finger and a little finger are bundled so that a ring finger and a little finger may not be separated.

  With the above configuration, even a beginner can easily learn how to properly hold and use chopsticks without using auxiliary tools, and without destroying the unique form of chopsticks, manufacturing is also possible. Easy chopsticks can be provided.

The configuration and technical features of the present invention will be specifically described below with reference to the embodiments shown in the drawings.
FIG. 1 is an external perspective view of an embodiment of chopsticks according to the present invention and its AA, BB, CC, DD sectional views,
FIG. 2 is an external perspective view of another embodiment of the chopsticks according to the present invention and its EE, FF, GG, HH cross-sectional views,
FIG. 3 is an explanatory view showing how to hold the chopstick stick on the operation side of the chopsticks according to the present invention,
FIG. 4 is an explanatory view showing how to hold the fixed chopstick stick of the chopsticks according to the present invention and a state of grasping food with the operation chopstick stick and the fixed chopstick stick;
FIG. 5 is an external perspective view and another JJ cross-sectional view of another embodiment of the chopstick bar on the operation side of the chopstick according to the present invention and its raised portion,
FIG. 6 is an external perspective view and another KK cross-sectional view of another embodiment of the chopstick bar on the operation side of the chopsticks and the raised portion according to the present invention,
FIG. 7 is an external perspective view and another LL cross-sectional view of another embodiment of the chopstick bar on the operation side of the chopsticks and the raised portion according to the present invention,
FIG. 8 is an external perspective view and another MM cross-sectional view of another embodiment of a fixed chopstick stick and its anti-slip surface of the chopstick according to the present invention,
FIG. 9 is an external perspective view and another NN cross-sectional view of another embodiment of a fixed chopstick stick and its anti-slip surface of the chopstick according to the present invention,
FIG. 10 is an external perspective view and another PP cross-sectional view of another embodiment of the fixed chopstick bar and its anti-slip surface of the chopstick according to the present invention,
FIG. 11 is an external perspective view showing an embodiment in which a positioning member for chopsticks according to the present invention is attached, and its RR and SS sectional views;
FIG. 12 is an external perspective view of a rubber band used as necessary when using the chopsticks according to the present invention.
FIG. 13 is an external perspective view showing attachment means for the positioning member of the chopsticks according to the present invention,
FIG. 14 is an explanatory view showing various embodiments of a positioning member for chopsticks according to the present invention,
FIG. 15 is an explanatory view showing a state in which an embodiment equipped with a positioning member for chopsticks according to the present invention is used in combination with a rubber band.

First, how to hold chopsticks, which is generally accepted as a correct and beautiful way to hold, will be explained in three parts according to bullets.
(1) Of the pair of chopsticks, the chopsticks on the operating side are held by holding the three chopsticks on the operating side with three fingers, the thumb, the index finger, and the middle finger, as in the case of holding a pencil. The index finger and the middle finger are slightly extended, and at the same time, the thumb holds the chopstick stick at the position of the first joint of the index finger, and in this state, the index finger and the middle finger are bent and stretched at the same time, The operation side chopsticks are allowed to swing around the part grasped by three fingers (see FIGS. 3A to 4C and FIGS. 4A to 4D).
(2) Of the pair of chopstick bars, the other fixed side chopstick bar is held between the thumb or the base of the index finger and the ring finger [(A of FIG. ) To (D)].
In these operations (1) and (2), which may be the first and the second, or both may be performed substantially simultaneously.
(3) By the above operation, as shown in FIGS. 4A to 4D, the operator holds the operation side chopstick bar and the fixed side chopstick bar in his hand and the thumb is always extended, and the first finger from the first joint of the index finger. Press towards the point between two phalanxes. When using chopsticks, keep the tips of the four fingers other than the thumb almost aligned, and bend and stretch the two fingers of the index and middle fingers only when grabbing food. By swinging the operation side chopstick stick like a lever with the place pressed by the thumb of the upper part as the swing center fulcrum, food can be pinched by the tip of the chopsticks.

  General chopsticks that are actually used are not marked or displayed, so when learning how to hold chopsticks, users, that is, beginners, understand the position and operating principle of holding chopsticks accurately. It is difficult to learn. In particular, during operation, it is necessary to rock the chopsticks on the operation side with the thumb held at the center fulcrum, and to hold the fixed chopsticks in a stationary state. It was extremely difficult to learn how to hold and how to use it so that it was an accurate and beautiful work.

First, a description will be given with reference to FIGS. 1 and 2.
A chopstick 1 for learning how to hold according to the present invention comprises an operation side chopstick stick 1 and a fixed side chopstick stick 2, and is sandwiched between at least the upper part of the operation side chopstick stick 10 between the thumb 2 and the index finger 4 when used. A raised portion 11a (11b in the case of the embodiment of FIG. 2) is provided at the power portion, and the raised portion 11a (11b) is formed in a protrusion shape with a rounded top, and has at least a small area from the abdominal surface of the thumb. It forms so that a user can recognize the said protruding part by contacting.
In use, the user presses the raised portion 11a (11b) with the abdominal surface (the surface with the fingerprint) 301 of the first phalanx 3 of the thumb 2 and, as shown in FIGS. By holding the raised portion 11a (11b) between the abdominal surface 301 and an appropriate portion of the abdominal surface from the first joint to the second phalanx 402 of the index finger 4, the raised portion 11a (11b) is held on the operation side chopsticks. There is no central fulcrum for the swinging operation of the stick 10, and the first phalange 401 of the user's index finger 4 and the first phalange 501 of the middle finger 5 are on the tip side from the raised portion 11 a (11 b) of the operation side chopstick stick 10. By holding and holding the index finger 4 and the middle finger 5, the operation side chopstick bar 10 is swung around the raised portion 11 a (11 b) as a center fulcrum.

The basic shape of the chopsticks 1 includes various forms. For example, as shown in FIG. 1, the chopsticks rods 10 and 20 have a flat rectangular cross section perpendicular to the axis, as shown in FIG. Examples include those having a substantially square cross-section of the chopsticks or a circular cross-section perpendicular to the chopsticks as shown in FIG.
The shape of the raised portion 11a (11b in the embodiment of FIG. 2) formed on the chopstick bar 10 on the operation side of the chopstick 1 is also appropriately changed in design according to the basic shape of the chopstick bar 10 of the chopstick 1. When the cross section perpendicular to the axis of the operation-side chopsticks bar 10 is flat, as shown in FIG. 1 and its BB cross-sectional view, the ridges 11a formed on the two side surfaces of the chopstick bar have rounded tips. It is formed as a semi-cylindrical projection with a tinge.
Further, when the cross section perpendicular to the axis of the operation side chopstick stick is substantially square as shown in FIG. 2, the raised portion 11b surrounds the outer periphery of the chopstick stick as shown in FIG. 2 and its FF cross section. The cross section to be formed is formed as an arcuate annular ridge 11b.
Further, as shown in FIG. 5 and its JJ cross-sectional view, a concave groove 103 is formed in a part on two opposite side surfaces of the operation side chopstick bar 10, and a mountain-shaped raised portion 11c is formed in the concave groove. You may make it form.
Alternatively, as shown in FIG. 6, a concave fitting portion 104 may be formed on a part of the outer periphery of the operation-side chopstick stick 10 having a substantially square cross section and an annular protrusion 11d may be formed at the center thereof. Good.
Furthermore, when the operation side chopsticks rod 10 has a circular cross section perpendicular to the axis, as shown in FIG. 7 and its LL sectional view, an annular raised portion 11e protruding higher than the outer peripheral surface of the chopstick rod is provided. You may make it provide. The raised portion 11e is formed integrally with the operation side chopstick stick 10, or alternatively, the raised portion 11e formed as a separate member is mounted on the outer periphery of the chopstick stick to form the raised portion 11e. May be.

When holding the chopsticks, as shown in FIGS. 3A to 3C, the user can easily determine the position to hold the chopsticks by using the position display function of the raised portion 11 (or 11a to 11e). The raised portion 11 can perform the swing center fulcrum action and the positioning action of the operation side chopstick stick 10 by making the shape identifiable and confirmed and adapted to ergonomics.
That is, since the raised portion 11 can be easily identified by touching the raised portion 11 with the abdominal surface 301 of the first phalanx 3 of the thumb 2, the position of the operation side chopstick stick 10 can be easily and accurately known.

  Next, as shown in FIGS. 4A and 4B, the upper part of the fixed side chopstick stick 20 is sandwiched between the thumb and the finger part 6 at the base of the index finger, and the second phalanx 201 of the thumb 2 and the ring finger 7 are sandwiched. Is held between the first phalanx 701 of the thumb and the index finger, the second finger segment 201 of the thumb 2 and the first phalanx 701 of the ring finger 7. Fixed in contact with As a result, as described in the operation of the above three bullets, it is easy to learn how to hold chopsticks accurately and visually, and the difficulty of learning is eliminated.

Next, the operation of the chopsticks will be described with reference to (B) to (D) of FIG.
The user brings the abdominal surface 301 of the first phalanx 3 of the thumb 2 into contact with the raised portion 11 of the operation side chopstick stick 10, and the abdominal surface 301 of the first phalange 3 of the thumb 2 and the first of the index finger 4. The raised portion 11 is sandwiched between an arbitrary region from the joint to the second phalanx 402, and this raised portion 11 is used as the swing center point of the operation-side chopstick stick 10, and further, the first finger of the index finger 4 is used. Holding the chopsticks between the node 401 and the first finger 501 of the middle finger 5 and bending and extending the second joint of the index finger 4 and the second joint of the middle finger 5, the operation side chopstick stick 10 is centered on the raised portion 11. Swing as shown in FIG. At this time, if the ventral side of the index finger 4 is pushed downward in FIG. 4B, the food can be pinched, and the middle finger 5 can be released to release the food.

When holding food, the operation side chopstick bar 10 is swung, and the fixed side chopstick bar 20 is held in a fixed position without moving. This makes it possible to hold a single peanut as shown in FIG. 4 (C) or a single egg as shown in FIG. It can be grabbed.
As shown in FIGS. 4C and 4D, as shown above, the fixed chopstick bar 20 is held without moving, and the index finger 4 and the middle finger 5 are bent and extended simultaneously with respect to the back 8 of the hand. The operation-side chopsticks 10 can be swung around the raised portion 11. As shown in FIG. 4 (C), the angle between the back of the hand 8 and the index finger 4 is large or small by increasing the angle a ₁ when the finger is bent and decreasing the angle a ₂ when the finger is returned. You can grab some food.

  The raised portion 11 is not limited to being provided only on the operation-side chopstick stick 10 and is not shown in the figure. However, the fixed portion chopstick stick 20 also has the same position corresponding to the raised portion 11 on the operation-side chopstick stick 20. A similar raised portion may be provided. The operation side chopstick bar 10 and the fixed side chopstick bar 20 of the chopsticks 1 according to the present invention are formed so as to be symmetrical with each other, thereby improving the decoration effect of the chopsticks and increasing the range of selection on the appearance of the chopsticks. It is possible to spread.

  As shown in FIGS. 1, 2, and 8 to 10, an anti-slip surface is provided on a portion of the operation side chopstick stick 10 and fixed side chopstick stick 20 of the chopsticks 1 according to the present invention that contacts the user's finger. It is desirable to form. For example, the anti-slip surface 21 is formed on the portion of the fixed chopstick stick 20 that contacts the first phalanx 701 of the ring finger 7. The anti-slip surface 21 has both an action of displaying the position where the chopsticks are held and an anti-slip action. The user can easily identify the position where the fixed side chopstick stick 20 should be held by the ring finger, and the anti-slip effect can Therefore, the positioning effect of the fixed chopstick bar 20 can be improved, and the fixed chopstick bar 20 can be prevented from being displaced against the user's will during use.

  It is recommended that the non-slip surface (not shown) on the operation-side chopstick bar 10 and the non-slip surface 21 on the fixed-side chopstick bar 20 be provided in symmetrical positions. The shape and density of the anti-slip surface 21 are not limited, and the uneven shape as shown in FIG. 8 and its MM sectional view, FIG. 9 and its NN sectional view, and FIG. 10 and its PP sectional view are shown. A plurality of strips can be directly formed at predetermined positions on the side surface of the fixed chopstick bar 20, thereby increasing the range of the holding position identification effect, the anti-slip effect, the decorative effect, and the selectability of the chopsticks 1. it can.

Next, the embodiment of FIGS. 11 and 12 will be described.
This embodiment is a chopstick for learning how to hold for beginners who have never used chopsticks. In this case, the chopstick 1 according to the present invention is on the operation side chopstick bar 10 and / or the fixed side chopstick bar 20. Are provided with finger positioning members 12, 22 and 23 for holding and positioning, and rubber bands 30 and 40 are used. The positioning member 12 is provided on the tip side of the raised portion 11 of the chopsticks, has a slope 121 facing the raised portion 11, and the abdominal surface 301 of the first phalanx 3 of the thumb is brought into contact with the raised portion 11. Sometimes, the side 302 opposite to the index finger of the first phalanx 3 of the thumb is in contact with the inclined surface 121 as shown in FIGS. 15C and 15D, thereby the first finger of the thumb 2. The node 3 is easily set correctly at the position where the chopsticks are held, whereby the chopsticks of the first phalanx of the thumb 2 are more stably held and used, and the raised portion 11 on the chopstick bar 10 on the operation side is shaken. The dynamic center fulcrum action can be performed smoothly.

  The purpose of providing the positioning member 12 and its slope 121 is to show the position of the first phalange 3 of the thumb 2 in an easy-to-understand manner to beginners of chopsticks, prevent the chopsticks from tilting, and With the abdominal surface of the first phalanx 3 pressed against the raised portion 11, the operation side chopstick stick is held between the thumb 2 and the index finger 4, and in this state, the fixed side chopstick stick 20 is the base of the thumb and the index finger. The first phalanx 3 of the thumb is stably held on the raised portion 11 even with light pressure, so that the thumb or the index finger can be held at the base of the thumb and the index finger. This is because the thumb and the index finger can stably hold the operation-side chopstick bar 10 without applying force to the portion 6.

  The positioning members 22 and 23 are provided on the anti-slip surface 21 and a portion 24 that holds the chopsticks between the thumb and the index finger portion 6 of the index finger, respectively. A pair of finger stop ridges 221 are formed on the positioning member 22 so that the first phalanx of the ring finger 7 is held at a fixed position as shown in FIG. Accordingly, the anti-slip effect and the positioning effect between the positioning member 22 on the anti-slip surface 21 on the fixed chopstick bar 10 and the positioning member 23 provided near the pinch portion 24 at the fingertip portion 6 at the base of the thumb and the index finger. Thus, the fixed chopstick bar 20 is stably held at a fixed position.

As shown in FIG. 15 (A), the rubber band 30 is mounted so as to hang from the base of the thumb 2 to the palm 61 and the back of the hand, so that the finger support 6 is held in the closing direction by the elastic force.
Furthermore, the index finger 4 and the middle finger 5 are held by rubber bands 40 so that the ring finger 7 and the little finger 9 are not separated from each other. So that the position of is kept stable.
By doing so, a beginner can easily perform the above three operations of the bulleted list as shown in FIGS. 15A to 15D, and even a beginner can accurately hold chopsticks. It is also possible to acquire posture and work easily and quickly.

The positioning members 12, 22, and 23 are mounted on the operation-side chopstick bar 10 and the fixed-side chopstick bar 20, as shown in the positioning members 12 a and 23 a in FIG. 13, or in a tubular shape. The positioning members 12b and 22a may be fitted to the outer periphery of the chopstick stick in the axial direction.
Since the structure of the chopsticks 1 and the auxiliary finger positioning members 12, 22 and 23 is simple, the chopsticks 1 are easy to put on and take off. It can be used for learning, or can be used in the same way as ordinary chopsticks.

  A pair of finger stop ridges 221 spaced apart from each other on the positioning member 22 are for holding the first phalange 701 of the ring finger 7 as shown in FIG. The direction of the ridges 221 can be formed in both directions as shown in FIG. 14A, or can be inclined only in the right direction as shown in FIG. 14B, or As shown in FIG. 14 (C), it can be formed to be inclined only in the left direction, and (A) can be used with both left and right hands, and (B) is used with the right hand. (C) is for use with the left hand.

  The present invention is not limited to the embodiments shown in the above description and the accompanying drawings, and all modified embodiments that can be easily conceived by those skilled in the art from the above description and the like within the scope of the claims. Is included.

  Since the present invention is configured as described above, even a beginner can easily and accurately learn how to accurately hold and use chopsticks, and easily distinguish between a fixed chopstick stick and an operation chopstick stick. It is understandable, and it can learn the correct way to use and use it while maintaining its original form without planting the wrong idea of chopsticks like the conventional tweezers method. It has availability.

It is the external appearance perspective view of one Example of the chopsticks concerning this invention, and its AA, BB, CC, DD sectional drawing. It is the external appearance perspective view of another Example of the chopsticks which concern on this invention, and its EE, FF, GG, HH sectional drawing. It is explanatory drawing which shows how to hold the operation side chopstick stick of the chopsticks concerning this invention. It is explanatory drawing which shows the state of holding food with the operation side chopstick stick and the fixed chopstick stick, and how to hold the fixed chopstick stick of the chopsticks according to the present invention. It is the external appearance perspective view of another Example of the operation side chopsticks stick of the chopsticks which concerns on this invention, and its protruding part, and its JJ sectional drawing. It is the external appearance perspective view and another KK sectional drawing of another Example of the operation side chopstick stick of the chopsticks which concerns on this invention, and its protruding part. It is the external appearance perspective view of the another Example of the operation side chopsticks stick of the chopsticks which concerns on this invention, and its protruding part, and its LL sectional drawing. It is the external appearance perspective view of another Example of the fixed side chopstick stick of the chopsticks which concerns on this invention, and its anti-slip surface, and its MM sectional drawing. It is the external appearance perspective view of another Example of the fixed side chopstick stick of the chopsticks which concerns on this invention, and its anti-slip surface, and its NN sectional drawing. It is the external appearance perspective view and PP sectional drawing of another Example of the fixed side chopstick stick of the chopsticks which concerns on this invention, and its slip prevention surface. It is the external appearance perspective view which shows the Example which attached the positioning member of the chopsticks which concerns on this invention, and its RR, SS sectional drawing. It is an external appearance perspective view of the rubber band used as needed at the time of use of the chopsticks concerning the present invention. It is an external appearance perspective view which shows the attachment means of the positioning member of the chopsticks which concerns on this invention. It is explanatory drawing which shows the various Example of the positioning member of the chopsticks which concerns on this invention. It is explanatory drawing which shows the state which uses the Example which attached the positioning member of the chopsticks which concerns on this invention together with a rubber band.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chopstick 10 Operation side chopstick stick 11, 11a-11e Raised part 12, 12a, 12b Positioning member 121 Slope 20 Fixed side chopstick stick 21 Non-slip surface 22, 22a, 23, 23a Positioning member 221 Finger holding protrusion 24 Clamping part 2 Thumb 201 Second phalanx of thumb 3 First phalanx of thumb 301 Abdominal surface of first phalanx of thumb (surface with fingerprint)
302 Side surface of thumb 1 opposite to index finger 30 Rubber band 4 Index finger 401 First index finger 402 Second index finger 40 Rubber band 5 Middle finger 501 Middle finger first finger 6 Thumb and base of index finger Finger part 61 palm (palm)
7 Ring finger 701 The first phalanx of the ring finger 8 Back of the hand 9 Little finger

Claims (17)

In the chopsticks (1) comprising a pair of chopsticks (10, 20) of the operation side chopsticks (10) and the fixed side chopsticks (20);
Raised portions (11, 11a to 11e) are formed at least on the portion of the operation side chopsticks (10) that should be sandwiched between the thumb (2) and the index finger (4) during use, and the raised portions (11, 11a to 11e). ) Is formed in a rounded protrusion shape, and is configured so that the user can recognize the raised portions (11, 11a to 11e) when the top portion contacts at least the abdominal surface of the thumb with a small area. ;
In use, the above-mentioned bulge occurs between the abdominal surface (301) of the first phalanx (3) of the thumb (2) and an appropriate part of the abdominal surface from the first joint to the second phalange (402) of the index finger (4). By holding the portions (11a to 11e), the raised portion is held as a central fulcrum for the swinging operation of the operation side chopstick stick (10), and the first phalanx (401) of the index finger (4) and the middle finger Hold the tip side of the raised portion (11, 11a to 11e) of the operation side chopstick stick (10) with the first phalanx (501) of (5), and bend and stretch the index finger (4) and middle finger (5) The operation side chopsticks (10) is configured to be swung with the raised portions (11a to 11e) as the center fulcrum by operating;
Chopsticks for learning how to hold.   The method for learning how to hold according to claim 1, wherein the raised portion is a semi-cylindrical or mountain-shaped protrusion (11a, 11c) having a rounded top portion provided on a side surface of the chopstick stick. Chopsticks.   The raised portions (11a, 11c) formed of the semi-cylindrical or mountain-shaped projections are recessed grooves around the portions where the raised portions (11a, 11c) are to be formed on a part of two opposing side surfaces of the chopstick stick. 3. The chopsticks for learning how to hold according to claim 2, wherein the chopsticks are formed by forming (101, 103).   The raised portions (11a, 11c) made of the semi-cylindrical or mountain-shaped protrusions are formed by projecting part of two opposing side surfaces of the chopstick stick higher than the side surfaces. Chopsticks for learning how to hold according to claim 2.   2. The chopsticks for learning how to hold according to claim 1, wherein the raised portion is an annular ridge (11b, 11d, 11e) having an arcuate cross section surrounding the outer periphery of the chopstick bar.   The raised portions (11b, 11d) formed of the annular ridges form recesses (102, 104) on both sides of the portion where the raised portions (11b, 11d) are to be formed on a part of the outer periphery of the chopstick bar. The chopsticks for learning how to hold according to claim 5, wherein the chopsticks are for learning how to hold.   6. The holding method according to claim 5, wherein the raised portion (11e) made of the annular ridge is formed by projecting a part of the outer peripheral surface of the chopstick stick higher than the outer peripheral surface. Chopsticks for learning.   The dimensions of the raised portions (11, 11a to 11e) are such that the axial length of the chopstick stick at the rising start portion is 1.0 mm or more and 15.0 mm or less, and the height from the rising start position to the apex is 0.5 mm or more and 5.0 mm or less, and when the ridge is a mountain-shaped protrusion (11a, 11c), the length in the width direction of the chopstick stick at the rising start portion of the protrusion is 1.0 mm or more, The chopsticks for learning how to hold according to any one of claims 1 to 7, wherein the chopsticks are less than the thickness of a chopstick stick.   The chopsticks for learning how to hold according to any one of claims 1 to 8, wherein the raised portions (11, 11a to 11e) are formed integrally with a chopstick stick.   9. The raised portion (11, 11a to 11e) is formed as a member separate from the chopstick stick and is formed by attaching it to the chopstick stick. Chopsticks for learning how to hold the description.   A raised portion similar to the raised portions (11, 11a to 11e) on the operation side chopstick stick (10) is also provided on the fixed side chopstick stick (20) at the same position as the operation side chopstick stick. The chopstick for learning how to hold according to any one of claims 1 to 10.   The anti-slip surface (21) for confirming the support position and preventing slipping is formed on the support portion of the fixed side chopstick stick (20) with the ring finger, according to any one of claims 1 to 11. Chopsticks for learning how to hold.   An anti-slip surface similar to the anti-slip surface (21) on the fixed side chopstick bar (20) is also provided on the operation side chopstick bar (10) at the same position as the fixed side chopstick bar (10). A chopstick for learning how to hold according to claim 12.   14. The chopsticks for learning how to hold according to claim 12 or 13, characterized in that the non-slip surface (21) is a ring-shaped unevenness surrounding the outer peripheral surface of the chopstick stick (10, 20).   A thumb positioning member (12) is provided on the chopstick tip side of the raised portion (11) on the operation side chopstick stick (10), and the positioning member (12) is a slope (121) facing the raised portion (11). ) And when the abdominal surface (301) of the first phalanx (3) of the thumb (2) is brought into contact with the raised portion (11), the index finger of the first phalanx (3) of the thumb The opposite side surface (302) is in contact with the inclined surface (121) so that the first phalanx (3) of the thumb (2) can be easily set to the position holding the chopsticks. The chopsticks for learning how to hold according to any one of claims 1 to 14.   Positioning members (22, 23) are respectively formed at the formation position of the anti-slip surface (21) of the fixed chopstick stick (10) and the pinching portion (24) held between the thumb and the fingertip portion 6 at the base of the index finger. On the positioning member (22) provided at the position where the anti-slip surface (21) is formed, a first interval (701) of the ring finger (7) is spaced at a predetermined interval. The chopsticks for learning how to hold according to any one of claims 1 to 15, wherein a pair of finger stop protrusions (221) are formed.   A rubber band (30) that is mounted so as to hang over the palm (61) and back of the hand from the base of the thumb (2) so that the thumb (2) does not open widely from the index finger (4) during use of the chopsticks; In order to keep the index finger (4) and the middle finger (5) from separating, a rubber band (40) to be worn so that the index finger (4) and the middle finger (5) are bundled, a ring finger (7), and a little finger (9) 17. A rubber band (40) for attaching the ring finger (7) and the little finger (9) so as to prevent the ring finger from being separated, comprising a rubber band (40) according to any one of claims 1 to 16. Chopsticks for learning how to hold.

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