JP6910694B1 - Chopsticks and auxiliary tools for chopsticks - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide chopsticks capable of effectively assisting the opening operation of chopsticks. A chopstick 10 has a first chopstick member 11, a second chopstick member 12, and a first auxiliary tool 30. The first auxiliary tool includes a main body 31 for holding the first chopstick member and the second chopstick member so that the second chopstick member can be moved relative to the first chopstick member and is removable, and a second chopstick. A urging means 44 that urges the second chopstick member so that the chopstick tip 20 of the member is separated from the chopstick tip 20 of the first chopstick member, and a first hole 45a into which the user's first finger f1 can be inserted. It has a first ring portion 45 that is formed and fixed to the main body portion. [Selection diagram] Fig. 1

Description

The present invention relates to chopsticks and auxiliary tools for chopsticks.

For example, Patent Document 1 proposes a device for assisting the use of chopsticks. The chopsticks disclosed in Patent Document 1 have a first chopstick member and a second chopstick member that are connected so as to be relatively swingable. Further, the first chopstick member and the second chopstick member are provided with a finger insertion hole for inserting a finger, and guide the finger placement position.

According to the chopsticks disclosed in Patent Document 1, it is said that the finger can be arranged at an ideal position by using the finger insertion hole. It is also described that since the first chopstick member and the second chopstick member are connected so as to be able to swing relative to each other, the opening / closing operation of the first chopstick member and the second chopstick member can be assisted.

However, for infants who have just started using chopsticks, even if the finger is placed in the correct position using the finger insertion hole, the opening operation of separating the chopstick tip of the first chopstick member and the chopstick tip of the second chopstick member is sufficient. In addition, the chopsticks may slip out of the hand due to the finger coming out of the finger insertion hole.

Japanese Patent No. 3766831

The present invention has been made in consideration of the above points, and an object of the present invention is to provide chopsticks that can effectively assist the opening operation of chopsticks.

The first chopsticks according to the present invention
The first chopstick member and the second chopstick member,
The main body portion that holds the first chopstick member and the second chopstick member so that the second chopstick member can be moved relative to the first chopstick member and is removable, and the second chopstick member. A urging means for urging the second chopstick member so that the chopstick tip is separated from the chopstick tip of the first chopstick member, and a first hole into which the user's first finger can be inserted are formed. A first auxiliary tool having a first ring portion fixed to the
A mounting portion having a hole into which the second chopstick member can be removably inserted, and a second ring portion having a second hole into which the user's second finger can be inserted and fixed to the mounting portion. A second auxiliary tool having a third ring portion formed with a third hole into which the user's third finger can be inserted and fixed to the mounting portion.

The second chopstick according to the present invention is
The first chopstick member and the second chopstick member,
The main body portion that holds the first chopstick member and the second chopstick member so that the second chopstick member can be moved relative to the first chopstick member and is removable, and the second chopstick member. A urging means for urging the second chopstick member so that the chopstick tip is separated from the chopstick tip of the first chopstick member, and a first hole into which the user's first finger can be inserted are formed. A first ring portion fixed to and a first auxiliary tool having the first ring portion.

The third chopstick according to the present invention is
The first chopstick member and the second chopstick member,
A mounting portion having a hole into which the second chopstick member can be removably inserted, and a second ring portion having a second hole into which the user's second finger can be inserted and fixed to the mounting portion. A second auxiliary tool having a third ring portion formed with a third hole into which the user's third finger can be inserted and fixed to the mounting portion.

In the first to third chopsticks according to the present invention, the first chopstick member may be restricted from relative to the main body while being held by the main body.

In the first to third chopsticks according to the present invention
The main body is provided with a first hole into which the first chopstick member is removably inserted.
The first ring portion may be provided on the outer surface of the wall portion forming the first hole in the main body portion.

In the first to third chopsticks according to the present invention, the main body portion has a guide convex portion provided on the outer surface of the wall portion forming the first hole to guide the first finger of the user. You may do so.

In the first to third chopsticks according to the present invention, the urging means may be separated from the first chopstick member, and only the second chopstick member may be urged.

In the first to third chopsticks according to the present invention, the main body portion has a first hole into which the first chopstick member is removably inserted and a second hole into which the second chopstick member is removably inserted. , And have an intermediate wall portion that separates the first hole and the second hole.

In the first to third chopsticks according to the present invention
The first auxiliary tool has an intermediate member provided inside the hollow of the main body portion.
The intermediate member includes a base portion that is fixed to the main body portion and separates the first hole and the second hole together with the intermediate wall portion, and an urging portion that extends from the base portion to form the urging means. Have,
The urging portion may be located between the intermediate wall portion and the second chopstick member to urge the second chopstick member.

In the first to third chopsticks according to the present invention, the urging portion may have the belt-shaped portion connected to the base portion at both ends.

In the first to third chopsticks according to the present invention, the urging portion may have a ridge extending in one direction.

In the first to third chopsticks according to the present invention, the axial direction of the hole may be non-parallel to the axial direction of the second hole and non-parallel to the axial direction of the third hole.

In the first to third chopsticks according to the present invention
The second auxiliary tool has a regulating convex portion protruding from the mounting portion toward the first chopstick member, and the regulating convex portion comes into contact with the first chopstick member to contact the first chopstick member and the first chopstick member. The second chopstick member may be restricted from being too close.

In the first to third chopsticks according to the present invention, the second auxiliary tool may have a display unit provided with a display indicating how to attach the second chopstick member to the second chopstick member.

The chopstick member according to the present invention
A chopstick member with a central axis
Provided apart from each other along the central axis and each provided with a plurality of protrusions orbiting the central axis.
A recess is formed between two adjacent protrusions along the central axis.
The length of the recess along the central axis is 2.5 mm or more and 3.5 mm or less.
The depth of the recess is 0.1 mm or more and 0.3 mm or less.
Fine irregularities are formed on the surfaces of the convex portion and the concave portion.

The fourth chopstick according to the present invention is
Equipped with a pair of chopstick members
Each chopstick member is one of the chopstick members according to the present invention described above.

The first auxiliary tool according to the present invention is
An auxiliary tool used for chopsticks including the first chopstick member and the second chopstick member.
The main body portion that holds the first chopstick member and the second chopstick member so that the second chopstick member can be moved relative to the first chopstick member and is removable, and the second chopstick member. An urging member that urges the second chopstick member so that the chopstick tip is separated from the chopstick tip of the first chopstick member, and a first hole into which the user's first finger can be inserted are formed. It is provided with a first ring portion fixed to.

The second auxiliary tool according to the present invention is
An auxiliary tool used for chopsticks including the first chopstick member and the second chopstick member.
A mounting portion having a hole into which the second chopstick member can be removably inserted and a second ring portion having a second hole into which the user's second finger can be inserted and fixed to the mounting portion. And a third ring portion formed with a third hole into which the user's third finger can be inserted and fixed to the mounting portion.

An object of the present invention is to provide chopsticks that can effectively assist the opening operation of chopsticks.

It is a figure for demonstrating one Embodiment by this invention, and is the perspective view which shows chopsticks. The front view which shows the 1st use stage of the chopsticks of FIG. The front view which shows the 2nd use stage of the chopsticks of FIG. The front view which shows the 3rd use stage of the chopsticks of FIG. FIG. 3 is a vertical cross-sectional view of FIG. 3, showing an open state of chopsticks. It is a vertical sectional view corresponding to FIG. 5, and is the figure which shows the closed state of chopsticks. The schematic diagram which shows the chopstick tip of the chopstick member included in the chopstick of FIG. FIG. 3 is a perspective view showing the first auxiliary tool included in the chopsticks of FIG. 1 with some members removed. The perspective view which shows the intermediate member of the 1st auxiliary tool of FIG. The perspective view which shows the 2nd auxiliary tool included in the chopstick of FIG. The plan view which shows the 2nd auxiliary tool of FIG. A diagram to explain an example of how to use chopsticks ideally.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 to 11 are views for explaining an embodiment of the present invention. The chopsticks 10 according to the present embodiment has a first chopstick member 11 and a second chopstick member 12, and a first auxiliary tool 30 and a second auxiliary tool 50 that can be attached to the chopstick members 11 and 12. .. The chopsticks 10 are devised to assist a person who is unfamiliar with the handling of chopsticks, and in particular, can effectively assist the opening operation of the chopsticks. Moreover, the first auxiliary tool 30 and the second auxiliary tool 50 are removable from the chopstick members 11 and 12, and the user can use the first auxiliary tool 30 and the second auxiliary tool 50 by appropriately selecting and using them. Depending on the level of proficiency in using chopsticks, the user can be appropriately assisted. Such chopsticks 10 are not only suitable for people who are unfamiliar with the handling of chopsticks as a device for assisting the use of chopsticks, but also for the use of chopsticks such as infants as a device for learning how to use chopsticks. It is also suitable for those who start.

In the following, the chopsticks according to the embodiment of the present invention will be described with reference to examples of chopsticks for practice used to make infants learn how to use chopsticks. 1 and 2 show the chopsticks 10 with the first auxiliary tool 30 and the second auxiliary tool 50 attached to the chopstick members 11 and 12. The chopsticks 10 shown in FIGS. 1 and 2 are suitable for users (infants) who have just started using chopsticks, in other words, who have just started practicing using chopsticks. FIG. 3 shows the chopsticks 10 with only the first auxiliary tool 30 attached to the chopstick members 11 and 12. The chopsticks 10 shown in FIG. 3 are suitable for a user who has learned how to place a finger on the chopsticks. FIG. 4 shows a pair of chopstick members 11 and 12 that function as ordinary chopsticks by removing the first auxiliary tool 30 and the second auxiliary tool 50.

Note that FIG. 12 shows an ideal method of using chopsticks, and the illustrated method of use is a method that should be learned using the practice chopsticks 10 described below. As shown in FIG. 12, in the ideal method of using chopsticks, the first chopstick member cs1, which is also called the lower chopstick, is supported by the tip portion of the ring finger f4, the base end portion of the thumb f1, and the base portion of the index finger f2. Will be done. On the other hand, the second chopstick member cs2, which is also called an upper chopstick, is supported by the tip portion of the thumb f1, the tip portion of the index finger f2, and the tip portion of the middle finger f3. The opening and closing of the chopsticks cs is realized by applying a force to the portion of the second chopstick member cs2 sandwiched between the index finger f2 and the middle finger f3. When the chopsticks cs are opened and closed, the first chopstick member cs1 is maintained in a stationary state. On the other hand, the second chopstick member cs2 is supported by the tip portion of the thumb f1 and swings around the supported portion. By swinging the second chopstick member cs2, a closing operation in which the chopstick tips 20 of the pair of chopstick members 11 and 12 approach each other and an opening operation in which the chopstick tips 20 of the pair of chopstick members 11 and 12 are separated from each other are performed.

In the present specification, the tip 10a of the chopstick members 11 and 12 is the end of the chopstick members 11 and 12 on the side that picks up food in the longitudinal direction, and the base end of the chopstick members 11 and 12 is the chopstick member 11. , 12 is the end opposite to the tip 10a in the longitudinal direction, that is, the end on the side held by the user. The chopstick tip 20 is a region that can come into contact with the food when pinching the food located on the tip side of the chopstick members 11 and 12.

Hereinafter, each component of the chopsticks 10 will be described.

First, the pair of chopstick members 11 and 12 are used as ordinary chopsticks in the state of FIG. 4 in which the first auxiliary tool 30 and the second auxiliary tool 50 are removed. Therefore, the chopstick members 11 and 12 are configured in substantially the same manner as the chopstick members used for ordinary chopsticks. As shown in FIG. 4, each chopstick member 11 and 12 is an elongated member, and the central axis CL is defined by the outer contour thereof.

As shown in FIG. 4, each chopstick member 11 and 12 has a groove 18 used when mounting the first auxiliary tool 30 and the second auxiliary tool 50. More specifically, as the groove 18, a first groove 18a used for attaching the first auxiliary tool 30 and a second groove 18b used for attaching the second auxiliary tool 50 are provided. The first groove 18a and the second groove 18b are provided apart from the central axis CL of the chopstick members 11 and 12. As will be described later, the second auxiliary tool 50 is attached to the second chopstick member 12, and is not attached to the first chopstick member 11. In the illustrated example, the pair of chopstick members 11 and 12 are configured to be the same as each other, and each chopstick member can function as either the first chopstick member 11 or the second chopstick member 12 without distinction. The groove 18 is formed as an annular groove extending around the central axis CL of the chopstick members 11 and 12.

Further, the chopstick members 11 and 12 are devised to facilitate holding food. Specifically, as shown in FIG. 7, the chopstick members 11 and 12 have a plurality of convex portions 20B protruding from the rod-shaped main body 20A at the chopstick tips 20. The plurality of convex portions 20B are arranged so as to be separated from each other along the central axis CL. Each convex portion 20B protrudes from the main body 20A as an annular protruding portion orbiting around the central axis CL of the chopstick members 11 and 12. As a result, a recess 20C is formed between two convex portions 20B adjacent to each other along the central axis CL. The bottom surface of the recess 20C is formed by the main body 20A. Further, the surfaces of the chopstick members 11 and 12 are formed with fine irregularities sufficiently smaller than those of the convex portion 20B and the concave portion 20C.

Here, the dimensions of the convex portion 20B and the concave portion 20C are preferably as follows from the viewpoint of facilitating food holding. First, the length l1 of the recess 20C along the central axis CL is preferably 2.5 mm or more and 3.5 mm or less. Further, the depth d of the recess along the direction orthogonal to the central axis CL is preferably 0.1 mm or more and 0.3 mm or less. Further, the length l2 of the convex portion 20B along the central axis CL is preferably 1.5 mm or more and 2.0 mm or less. When such a dimension is realized, not only is it effective in making it easier to hold food, but it is also possible to prevent food residue from clogging the chopstick tip 20.

For example, the chopstick members 11 and 12 can be made of various materials such as resin. The chopstick members 11 and 12 made of resin can obtain the dimensions of the convex portion 20B and the concave portion 20C described above by processing such as shaping processing and embossing processing.

On the other hand, from the viewpoint of hygiene and from the viewpoint of eliciting a sense of security in the appearance of the guardian, it is effective to manufacture the chopstick members 11 and 12 using wood, for example, cypress. In the example shown in FIG. 7, the chopstick members 11 and 12 have a wooden rod-shaped body 21, a plurality of annular convex portions 22 provided apart from each other along the central axis CL of the rod-shaped body 21, and a rod-shaped body. It includes a coating layer 23 that covers the body 21 and the plurality of annular protrusions 22. The annular convex portion 22 has an annular shape that orbits around the central axis CL of the rod-shaped body 21. The convex portion 20B is formed due to the annular convex portion 22. The central axis CL of the rod-shaped body 21 coincides with the central axis of the chopstick members 11 and 12. The coating layer 23 is provided to realize the above-mentioned fine irregularities. The coating layer 23 has a base layer 23a and a large number of particles 23b held by the base layer 23a. Fine irregularities are formed due to the particles 23b.

Further, in the illustrated example, the chopstick members 11 and 12 have a surface layer 24 that covers the rod-shaped body 21 and the coating layer 23. The surface layer 24 forms the surface of the chopstick members 11 and 12. The surface layer 24 is a layer for preventing the wooden rod-shaped body 21 from absorbing water. Therefore, for example, the surface layer 24 can be formed by using an acrylic urethane resin. The thickness of the surface layer 24 can be 0.1 mm or more and 0.3 mm or less.

The annular convex portion 22 and the coating layer 23 for realizing the above-mentioned configurations of the convex portion 20B and the concave portion 20C can be manufactured as follows.

First, the annular convex portion 22 can be made of a curable resin. For example, the yarn is immersed in the uncured resin composition to attach the resin composition to the surface of the yarn. Next, the thread held in the direction orthogonal to the central axis CL of the rod-shaped body 21 is brought into contact with the rod-shaped body 21. As a result, the resin composition can be transferred to the annular region on the rod-shaped body 21. After that, the annular convex portion 22 can be formed by curing the resin composition on the rod-shaped body 21. The curing method of the resin composition is appropriately selected according to the resin composition, and examples thereof include irradiation with ionizing radiation (for example, ultraviolet rays and electron beams), heating, and the like.

From the viewpoint of realizing the preferable dimensions of the convex portion 20B described above, the length l3 of the annular convex portion 22 along the central axis CL can be 1.0 mm or more and 1.5 mm or less, and the central axis line. The height h of the annular convex portion 22 along the direction orthogonal to the CL can be 0.1 mm or more and 0.3 mm or less.

Next, the coating layer 23 can be formed by applying a resin composition containing the particles 23b on the rod-shaped body 21 and the annular convex portion 22 and curing the resin composition. The cured product of the resin composition forms the base layer 23a. The shape of the particles 23b is not particularly limited, and various shapes capable of forming fine irregularities, for example, spherical particles, needle-shaped particles, scaly particles, and the like can be used. From the viewpoint of producing fine irregularities, the average thickness of the coating layer 23 can be 0.1 mm or more and 0.3 mm or less.

Next, the first auxiliary tool 30 will be described. The first auxiliary tool 30 can be detachably attached to the first chopstick member 11 and the second chopstick member 12. The first auxiliary tool 30 guides the placement position of the thumb (first finger) f1 when the user holds the chopsticks 10, and opens and closes the first chopstick member 11 and the second chopstick member 12, especially opening. Assist the movement.

As shown in FIG. 1, the first auxiliary tool 30 has a main body portion 31 for holding the chopstick members 11 and 12, and a first ring portion 45 provided on the main body portion 31. Further, the first auxiliary tool 30 further has an intermediate member 40 provided in the main body portion 31. The intermediate member 40 constitutes an urging means 44 that urges the second chopstick member 12 so that the chopstick tip 20 of the second chopstick member 12 is separated from the chopstick tip 20 of the first chopstick member 11. Hereinafter, each component included in the first auxiliary tool 30 will be described.

First, the main body 31 holds the first chopstick member 11 and the second chopstick member 12 so that the second chopstick member 12 can move relative to the first chopstick member 11. However, the first chopstick member 11 and the second chopstick member 12 are removable from the main body 31. As a specific configuration, as shown in FIG. 1, the main body 31 has a first hole 37a into which the first chopstick member 11 is removably inserted and a second hole in which the second chopstick member 12 is removably inserted. 37b and are provided. In the illustrated example, the first hole 37a and the second hole 37b are defined by the main body 31 and the intermediate member 40. Then, as shown in FIG. 5, a first engaging convex portion 38a is formed in the first hole 37a. By fitting the first engaging convex portion 38a into the first groove 18a of the first chopstick member 11, the first chopstick member 11 is held by the main body portion 31. On the other hand, a second engaging convex portion 38b is formed in the second hole 37b. The second engaging convex portion 38b is fitted into the first groove 18a of the second chopstick member 12, so that the second chopstick member 12 is held by the main body portion 31. As shown in FIG. 8, the first engaging convex portion 38a and the second engaging convex portion 38b extend linearly, particularly linearly.

As is well shown in FIG. 8, the main body portion 31 extends between the first main wall portion 32 and the second main wall portion 33 arranged so as to face each other and the pair of main wall portions 32, 33. It has one side wall portion 34 and a second side wall portion 35. The first main wall portion 32 and the second main wall portion 33 have a longitudinal direction in the direction in which the pair of chopstick members 11 and 12 held by the main body portion 31 are arranged. The main body portion 31 has a square tubular outer contour as a whole due to these wall portions 32, 33, 34, 35. Further, the main body portion 31 further has an intermediate wall portion 36 that separates the first hole 37a and the second hole 37b. As shown in FIGS. 8 and 5, the first engaging convex portion 38a is provided on the inner surface of the first side wall portion 34 and extends in a direction connecting the pair of main wall portions 32 and 33. The second engaging convex portion 38b is provided on the inner surface of the second side wall portion 35 and extends in a direction connecting the pair of main wall portions 32 and 33.

In the illustrated example, the first chopstick member 11 is fixed to the main body 31 while being held by the main body 31. By appropriately designing the size of the first hole 37a, the first chopstick member 11 is fixed. On the other hand, the second chopstick member 12 can operate with respect to the main body 31 and the first chopstick member 11 in a state of being held by the main body 31. In the illustrated example, the second chopstick member 12 held by the main body 31 is swingable with respect to the main body 31 and the first chopstick member 11. The swing axis ds with respect to the main body portion 31 and the first chopstick member 11 of the second chopstick member 12 passes through the second engaging convex portion 38b and extends in the direction connecting the pair of main wall portions 32 and 33. That is, the swing axis of the second chopstick member 12 with respect to the main body 31 and the first chopstick member 11 extends along the linear second engaging convex portion 38b. The swinging motion of the second chopstick member 12 is guided by the pair of main wall portions 32, 33, and becomes an motion on the surface along the pair of main wall portions 32, 33.

As shown in FIGS. 5 and 6, the intermediate member 40 is provided in the main body 31. The intermediate member 40 is located between the first hole 37a and the second hole 37b in the main body 31. The intermediate member 40 separates the first hole 37a and the second hole 37b together with the intermediate wall portion 36.

As shown in FIGS. 5 and 6, the intermediate member 40 has a base 41 and an urging portion 42 extending from the base 41. The base portion 41 separates the first hole 37a and the second hole 37b together with the intermediate wall portion 36 of the main body portion 31. The base portion 41 is arranged along the central axis CL of the first chopstick member 11 so as to be offset from the intermediate wall portion 36. The base portion 41 has a first support surface 41a and a second support surface 41b arranged so as to face each other in the direction in which the pair of chopstick members 11 and 12 held by the main body portion 31 are arranged. The first support surface 41a forms a part of the inner surface of the wall portion that defines the first hole 37a. The second support surface 41b forms a part of the inner surface of the wall portion that defines the second hole 37b.

The main body 31 has a third engaging convex portion 38c inside. In the illustrated example, one third engaging convex portion 38c extends from the first main wall portion 32 toward the second main wall portion 33, and extends from the second main wall portion 33 toward the first main wall portion 32. The other third engaging convex portion 38c is extended. On the other hand, the intermediate member 40 is formed with a receiving recess 41c that receives the third engaging convex portion 38c. As shown in FIG. 8, the receiving recess 41c is formed as a through hole penetrating the base 41. The intermediate member 40 is fixed to the inside of the main body 31 by fitting the pair of third engaging protrusions 38c into the receiving recesses 41c from both sides.

Next, as shown in FIGS. 5 and 6, the urging portion 42 extends from the base 41 to form the urging means 44. The urging portion 42 is a belt-shaped portion, and is connected to the base portion 41 at both ends thereof. For example, the urging portion 42 is formed of an elastic material such as a resin together with the base portion 41. The urging portion 42 is located between the intermediate wall portion 36 of the main body portion 31 and the second chopstick member 12. As a result, the urging means 44 formed by the urging portion 42 comes into contact with the second chopstick member 12 at a position closer to the chopstick tip 20 than the swing axis ds of the second chopstick member 12. 1 The second chopstick member 12 is urged in a direction away from the chopstick member 11. That is, the urging means 44 urges the second chopstick member 12 so that the chopstick tip 20 of the second chopstick member 12 is separated from the chopstick tip 20 of the first chopstick member 11. The urging means 44 forming the urging portion 42 is separated from the first chopstick member 11 and urges only the second chopstick member 12.

The belt-shaped urging portion 42 has a longitudinal direction and a cross-sectional shape orthogonal to the longitudinal direction is elongated and flattened in a direction connecting the pair of main wall portions 32 and 33. Therefore, in the examples shown in FIGS. 5 and 6, the deformation of the urging portion 42 forming the urging means 44 is effectively regulated in the direction along the surface direction of the pair of main wall portions 32, 33. As a result, the urging force of the urging means 44 acts efficiently along the plane direction of the pair of main wall portions 32, 33. Therefore, the second chopstick member 12 is stably urged to open the first chopstick member 11.

Further, the urging portion 42 has a ridge 42a extending in a direction connecting the pair of main wall portions 32, 33. The protrusion 42a also effectively regulates the deformation of the urging portion 42 in the direction along the surface direction of the pair of main wall portions 32, 33, and as a result, the urging force of the urging means 44 is paired. It acts efficiently along the plane direction of the main wall portions 32 and 33 of the above.

Next, the first ring portion 45 will be described. As shown in FIG. 8, the first ring portion 45 is fixed to the first main wall portion 32 of the main body portion 31. In particular, in the illustrated example, the first ring portion 45 is provided on the outer surface of the first main wall portion 32 of the main body portion 31 in the wall portion forming the first hole 37a. As a result, the first ring portion 45 is located in the vicinity of the first chopstick member 11 held by the main body portion 31. The first ring portion 45 is provided with a first hole 45a. As shown in FIG. 2, the user's thumb (first finger) f1 is inserted into the first hole 45a, whereby the first ring portion 45 guides the user's thumb placement position. ..

By the way, as shown in FIGS. 2 and 1, the main body portion 31 of the first auxiliary tool 30 has a guide convex portion 39 protruding outward from the first side wall portion 34. The guide convex portion 39 is provided on the outer surface of the first side wall portion 34 in the vicinity of the end portion on the tip end side along the central axis CL of the first chopstick member 11. As shown in FIG. 2, the guide convex portion 39 guides the placement position of the thumb (first finger) f1 of the user holding the chopsticks 10 together with the first ring portion 45.

The main body portion 31 including the guide convex portion 39 and the first ring portion 45 can be integrally formed by, for example, injection molding of a resin.

Next, the second auxiliary tool 50 will be described. The second auxiliary tool 50 can be detachably attached to the second chopstick member 12. As shown in FIG. 2, the second auxiliary tool 50 guides the placement position of the index finger (second finger) f2 and the middle finger (third finger) f3 when the user holds the chopsticks 10.

As shown in FIGS. 10 and 11, the second auxiliary tool 50 includes a mounting portion 51 in which a hole 51a into which the second chopstick member 12 is removably inserted is formed, and a second ring fixed to the mounting portion 51. It has a portion 54 and a third ring portion 55. The mounting portion 51 is a tubular portion and holds the second chopstick member 12. However, the second chopstick member 12 is removable from the mounting portion 51. As a specific configuration, as shown in FIG. 11, a pair of engaging convex portions 51b are formed on the inner surface of the hole 51a. The pair of engaging protrusions 51b are arranged at opposite positions on the inner surface of the hole 51a. The second chopstick member 12 is held by the attachment portion 51 by fitting the engaging convex portion 51b into the second groove 18b of the second chopstick member 12. As shown in FIG. 11, the engaging convex portion 51b extends linearly, particularly linearly.

As shown in FIG. 10, the second ring portion 54 is fixed to the mounting portion 51. The second ring portion 54 is provided with a second hole 54a. As shown in FIG. 2, the index finger (second finger) f2 of the user is inserted into the second hole 54a, whereby the second ring portion 54 guides the position of the index finger f2 of the user. do. Further, the third ring portion 55 is fixed to the mounting portion 51. The third ring portion 55 is provided with a third hole 55a. As shown in FIG. 2, the user's middle finger (third finger) f3 is inserted into the third hole 55a, whereby the third ring portion 55 guides the position of the user's middle finger f3. do.

As shown in FIG. 10, the axial direction dx of the hole 51a is non-parallel to the axial direction dy of the second hole 54a and also non-parallel to the axial direction dz of the third hole 55a. As described above, the second hole 54a and the third hole 55a each guide different finger placement positions. By setting the axial direction dy of the second hole 54a and the axial direction dz of the third hole 55a independently of the axial direction dx of the hole 51a, it is possible to appropriately guide the position of the finger. The axial direction of the hole or hole is the direction in which the hole or hole extends, and is specified by the inner surface of the wall portion that defines the hole or hole.

By the way, as shown in FIGS. 1 and 2, the second auxiliary tool 50 attached to the second chopstick member 12 in a state where the first auxiliary tool 30 and the second auxiliary tool 50 are attached to the chopstick members 11 and 12. Further has a regulation convex portion 56 extending from the attachment portion 51 toward the first chopstick member 11. The regulation convex portion 56 can come into contact with the first chopstick member 11 when the chopsticks 10 are closed to prevent the first chopstick member 11 and the second chopstick member 12 from coming too close to each other.

Further, the second auxiliary tool 50 is formed as a flat member as compared with the first auxiliary tool 30. Therefore, it is possible to intuitively identify the front and back sides of the second auxiliary tool 50, in other words, which side of the second auxiliary tool 50 is located on the side of the tip 10a along the central axis CL of the second chopstick member 12. It's not easy. Therefore, the second auxiliary tool 50 has a display unit 57 in order to make it easy and accurate to attach to the second chopstick member 12. The display unit 57 is provided with a display 57a indicating how to attach the second auxiliary tool 50 to the second chopstick member 12. In the illustrated example, as shown in FIGS. 1 and 11, the display portion 57 is formed on the regulation convex portion 56. The illustrated display unit 57 indicates that the side on which the display 57a is formed faces the side of the tip 10a on the central axis CL of the second chopstick member 12 by the display 57a described as "front". Such a display is particularly useful in the second auxiliary tool 50 in which the axial direction dy of the second hole 54a and the axial direction dz of the third hole 55a are set independently of the axial direction dx of the hole 51a.

Such a second auxiliary tool 50 can be integrally formed by, for example, injection molding of a resin. Compared with the first auxiliary tool 30 that holds the pair of chopstick members 11 and 12 so as to allow only a certain relative movement, the second auxiliary tool 50 uses a flexible material that is relatively easily deformed. Can be produced. By selecting such a resin, in the second auxiliary tool 50 manufactured by injection molding, the axial direction dy of the second hole 54a and the axial direction dz of the third hole 55a are independent of the axial direction dx of the hole 51a. Can be set.

Next, the operation of the chopsticks 10 having the above configuration will be described.

The chopsticks 10 described above can be used for a long period of time in three forms according to the learning stage of how to use the chopsticks 10.

First, as the first step, the chopsticks 10 are used in the forms shown in FIGS. 1 and 2. That is, in the first stage, the first auxiliary tool 30 and the second auxiliary tool 50 are attached to the chopstick members 11 and 12. For example, first, the first chopstick member 11 is inserted into the first hole 37a formed in the main body 31 of the first auxiliary tool 30, and the second chopstick member 12 is formed in the main body 31 of the first auxiliary tool 30. It is inserted into the second hole 37b. The first engaging convex portion 38a (see FIG. 5) of the first auxiliary tool 30 engages with the first groove 18a (see FIG. 4) of the first chopstick member 11, so that the first chopstick member 11 becomes the first. It is held by the auxiliary tool 30. Further, the second engaging convex portion 38b (see FIG. 5) of the first auxiliary tool 30 engages with the first groove 18a (see FIG. 4) of the second chopstick member 12, so that the second chopstick member 12 can be moved. It is held by the first auxiliary tool 30. Next, the second chopstick member 12 is inserted into the hole 51a formed in the attachment portion 51 of the second auxiliary tool 50. At this time, the orientation of the second auxiliary tool 50 with respect to the second chopstick member 12 can be easily and surely determined based on the display 57a of the display unit 57. The engaging convex portion 51b (see FIG. 11) of the second auxiliary tool 50 engages with the second groove 18b (see FIG. 4) of the second chopstick member 12, so that the second auxiliary tool 50 becomes the second chopstick member. It is attached to 12.

The chopsticks 10 in the first stage assist the way of holding the chopsticks 10 and the opening / closing operation of the chopsticks 10. Such a first step is suitable for users with a low level of proficiency in using chopsticks, typically those who have just started using chopsticks.

The user inserts the thumb (first finger) f1 into the first hole 45a of the first ring portion 45, and inserts the index finger (second finger) f2 into the second hole 54a of the second ring portion 54. The middle finger (third finger) f3 is inserted into the third hole 55a of the third ring portion 55. As a result, the user can hold the chopsticks 10 in an ideal way of holding.

Further, the first auxiliary tool 30 fixes the first chopstick member 11 by the main body portion 31 and regulates the relative operation of the first chopstick member 11 with respect to the main body portion 31. Further, the first auxiliary tool 30 regulates the operation of the second chopstick member 12 in a predetermined direction by the main body portion 31. In the illustrated example, the second chopstick member 12 is allowed to swing around the predetermined swing axis ds by the first auxiliary tool 30, and other movements are restricted. The swing axis ds of the second chopstick member 12 is along the linear second engaging convex portion 38b that has entered the first groove 18a of the second chopstick member 12. Therefore, the user is urged by the chopsticks 10 to open and close the chopsticks 10 by the ideal opening / closing operation described at the beginning with reference to FIG.

Further, the first auxiliary tool 30 has an urging means 44 for urging the second chopstick member 12 so that the chopstick tip 20 of the second chopstick member 12 is separated from the chopstick tip 20 of the first chopstick member 11. There is. That is, the urging means 44 can effectively assist the opening operation of the chopsticks, which is considered to be particularly difficult among the operations of the chopsticks. As a result, the fingers come out of the holes 45a, 54a, 55a of the ring portions 45, 54, 55 during the closing operation, and the chopsticks 10 cannot be held in the correct way during the opening operation of the chopsticks 10. Can effectively prevent the chopsticks 10 from slipping off the hand. On the other hand, the chopsticks closing operation is easier than the chopsticks opening operation. Therefore, by moving the second chopstick member 12 against the urging force of the urging means 44, it can be carried out without any particular trouble.

In the illustrated example, the urging means 44 is composed of the urging portion 42 of the intermediate member 40. As shown in FIG. 8, the urging portion 42 is formed in a belt shape and generates an urging force in a direction perpendicular to the swing axis d. Therefore, the swing of the second chopstick member 12 that causes the opening operation of the chopsticks 10 can be smoothly and efficiently promoted. Further, the illustrated urging portion 42 has a ridge 42a parallel to the swing axis ds. The ridge 42a restricts the deformation of the urging portion 42 to the deformation in the direction perpendicular to the swing axis d. From this point as well, the swing of the second chopstick member 12 that causes the opening operation of the chopsticks 10 can be smoothly and efficiently promoted.

As described above, in the use of the chopsticks 10 in the first stage, the user is assisted in opening and closing the chopsticks 10 while holding the chopsticks 10 appropriately. Therefore, the use of the chopsticks 10 in the first stage can be applied to infants who use the chopsticks 10 for the first time.

Next, the use of the chopsticks 10 in the second stage will be described. In the second stage, the chopsticks 10 are used in the form shown in FIG. In the second stage, only the first auxiliary tool 30 is attached to the chopstick members 11 and 12. That is, in the second stage, the second auxiliary tool 50 is not used. Such use of the chopsticks 10 in the second stage is suitable for a user who has become able to properly hold the chopsticks 10 by using the chopsticks 10 in the first stage. As described above, the first auxiliary tool 30 assists the placement position of the thumb f1. Further, the first auxiliary tool 30 guides the opening / closing operation of the pair of chopstick members 11 and 12, and also applies an assisting force when performing the opening operation.

When the opening and closing operation of the chopsticks 10 can be smoothly performed with only the first auxiliary tool 30 attached to the first chopsticks member 11 and the second chopsticks member 12, the use of the chopsticks 10 in the second stage is terminated. .. Such a user has generally mastered how to hold the chopsticks 10 and the opening / closing operation of the chopsticks 10, and starts using the chopsticks 10 in the third stage. In the third stage, the chopsticks 10 are used in the form shown in FIG. That is, in the third stage, the first auxiliary tool 30 and the second auxiliary tool 50 are not used, and the pair of chopstick members 11 and 12 are used in the same manner as ordinary chopsticks.

In one embodiment described above, the chopsticks 10 are the elongated rod-shaped first chopstick member 11, the elongated rod-shaped second chopstick member 12, and the first auxiliary tool 30 and the second auxiliary tool 30 and the second which can be attached to the chopstick members 11 and 12. It has an auxiliary tool 50 and. The first auxiliary tool 30 is a main body 31 that holds the first chopstick member 11 and the second chopstick member 12 so that the second chopstick member 12 can be moved relative to the first chopstick member 11 and is removable. The urging means 44 that urges the second chopstick member 12 so that the chopstick tip 20 of the second chopstick member 12 is separated from the chopstick tip 20 of the first chopstick member 11, and the user's first finger f2. It has a first ring portion 45 in which a first hole 45a that can be inserted is formed and fixed to a base portion 41. The second auxiliary tool 50 is attached by forming an attachment portion 51 having a hole 51a into which the second chopstick member 12 is removably inserted and a second hole 54a into which the user's second finger f2 can be inserted. It has a second ring portion 54 fixed to the portion 51 and a third ring portion 55 formed with a third hole 55a into which the user's third finger f3 can be inserted and fixed to the mounting portion 51. There is. Such chopsticks 10 can be effectively used for a long period of time in three forms according to the learning stage of how to use chopsticks. In the first stage using the first auxiliary tool 30 and the second auxiliary tool 50, it is possible to assist the way of holding the chopsticks 10 and the opening / closing operation of the chopsticks 10. In the second stage, the second auxiliary tool 50 can be removed and the first auxiliary tool 30 can be applied to the chopstick members 11 and 12, mainly assisting the opening and closing operation of the chopsticks 10. In the third stage, both the first auxiliary tool 30 and the second auxiliary tool 50 can be removed, and the pair of chopstick members 11 and 12 can be used as ordinary chopsticks. That is, the chopsticks 10 can be used appropriately for a long period of time from the stage of starting the practice of the chopsticks 10 to the time when the chopsticks 10 can be used normally. In addition, by using the chopsticks 10 for practicing how to use chopsticks, it is possible to effectively promote the acquisition of proper chopsticks usage.

Further, in one embodiment described above, the chopsticks 10 include an elongated rod-shaped first chopstick member 11, an elongated rod-shaped second chopstick member 12, and a first auxiliary tool 30 that can be attached to the chopstick members 11 and 12. ,have. The first auxiliary tool 30 is a main body 31 that holds the first chopstick member 11 and the second chopstick member 12 so that the second chopstick member 12 can be moved relative to the first chopstick member 11 and is removable. The urging means 44 that urges the second chopstick member 12 so that the chopstick tip 20 of the second chopstick member 12 is separated from the chopstick tip 20 of the first chopstick member 11, and the user's first finger f2. It has a first ring portion 45 in which a first hole 45a that can be inserted is formed and fixed to a base portion 41. In such a chopstick 10, the chopsticks 10 can be held in a state where the first finger f1 is appropriately arranged by inserting the first finger f1 into the first hole 45a of the first ring portion 45. Further, the urging means 44 can assist the opening operation. Therefore, the opening operation of the chopsticks 10 is assisted by an appropriate holding method in which the first finger f1 is inserted into the first hole 45a of the first ring portion 45, and the chopsticks 10 are dropped due to the opening operation. Can also be effectively prevented. Further, since the first auxiliary tool 30 can be removed from the first chopstick member 11 and the second chopstick member 12, the first auxiliary tool 30 can be used by a user who has learned the opening operation of the chopsticks 10. You can remove the chopsticks and use the chopsticks 10. That is, the chopsticks 10 can be used for a long period of time in an appropriate form according to the learning level of how to use chopsticks. In addition, by using the chopsticks 10 for practicing how to use chopsticks, it is possible to effectively promote the acquisition of proper chopsticks usage.

Further, in the specific example of the above-described embodiment, the first chopstick member 11 is restricted from relative to the main body 31 in a state of being held by the main body 31, and is fixed to the main body 31. According to such chopsticks 10, the first ring portion 45 is provided with respect to the first finger f1 inserted into the first hole 45a of the first ring portion 45 during the opening / closing operation of the chopsticks 10. The first chopstick member 11 held by the 1 auxiliary tool 30 and the 1st auxiliary tool 30 can be stopped. That is, it is possible to assist the opening / closing operation of the ideal chopsticks 10.

Further, in the specific example of the above-described embodiment, the main body 31 is provided with a first hole 37a into which the first chopstick member 11 is removably inserted. The first ring portion 45 is provided on the outer surface of the wall portion forming the first hole 37a of the main body portion 31. According to such chopsticks 10, the first ring portion 45 is provided in the immediate vicinity of the first chopstick member 11. Therefore, during the opening and closing operation of the chopsticks 10, the first finger to be placed on the first chopstick member 11 in the vicinity of the first finger f1 inserted into the first ring portion 45, in other words, in the ideal usage. The first chopstick member 11 comes to rest in the vicinity of f1. Therefore, it is possible to assist the proper movement of chopsticks while holding the chopsticks properly.

Further, in the specific example of the above-described embodiment, the main body portion 31 is provided on the outer surface of the wall portion forming the first hole 37a to guide the user's first finger f1. Have. According to such chopsticks 10, the first ring portion 45 and the guide convex portion 39 can stably arrange the first finger f1 at an appropriate position.

Further, in the specific example of the above-described embodiment, the urging means 44 is separated from the first chopstick member 11 and urges only the second chopstick member 12. According to such chopsticks 10, the urging means 44 effectively assists the operation of the second chopstick member 12 during the opening operation, while the first chopstick member 11 is during the opening / closing operation of the chopsticks 10. Can be stably stopped.

Further, in the specific example of the above-described embodiment, the main body 31 has a first hole 37a into which the first chopstick member 11 is removably inserted and a second hole 37a into which the second chopstick member 12 is removably inserted. A hole 37b is provided. The main body portion 31 has an intermediate wall portion 36 that separates the first hole 37a and the second hole 37b. According to such chopsticks 10, the first chopstick member 11 is fixedly held by the main body 31 and the second chopstick member 12 is operably held by the main body 31 by a simple configuration. Can be done.

Further, in the specific example of the above-described embodiment, the first auxiliary tool 30 has an intermediate member 40 provided inside the hollow of the main body 31. The intermediate member 40 is fixed to the main body 31 to separate the first hole 37a and the second hole 37b together with the intermediate wall portion 36, and the urging portion 42 extending from the base portion 41 to form the urging means 44. And have. The urging portion 42 is located between the intermediate wall portion 36 and the second chopstick member 12, and urges the second chopstick member 12. According to such chopsticks 10, the first chopstick member 11 is fixed to the main body 31 of the first chopstick member 11 and the first chopstick member 11 is fixed to the main body 31 and the first chopstick member 11 by using the intermediate member 40 having a simple structure. 2 The urging of the chopstick member 12 can be realized.

Further, in one embodiment described above, the chopsticks 10 include an elongated rod-shaped first chopstick member 11, an elongated rod-shaped second chopstick member 12, and a second auxiliary tool 50 attached to the second chopstick member 12. ,have. The second auxiliary tool 50 is attached by forming an attachment portion 51 having a hole 51a into which the second chopstick member 12 is removably inserted and a second hole 54a into which the user's second finger f2 can be inserted. It has a second ring portion 54 fixed to the portion 51 and a third ring portion 55 formed with a third hole 55a into which the user's third finger f3 can be inserted and fixed to the mounting portion 51. There is. In such use of the chopsticks 10, the second finger f2 is inserted into the second hole 54a of the second ring portion 54 of the second auxiliary tool 50, and the third finger f3 is inserted into the third ring portion 55 of the third ring portion 55. It can be inserted into the hole 55a. By using the second ring portion 54 and the third ring portion 55, the second finger f2 and the third finger f3, which are important in the opening / closing operation of the chopsticks 10, are guided to appropriate positions of the chopsticks 10, respectively. It is possible to effectively assist the use of the chopsticks 10. Further, since one second auxiliary tool 50 includes two ring portions 54 and 55, it is possible to effectively contribute to reduction of the number of parts, avoidance of small parts, prevention of loss of parts, and the like. Further, by using these chopsticks for practicing how to use the chopsticks 10, it is possible to effectively promote the acquisition of appropriate chopsticks usage, especially the position where the finger is placed.

Further, in the specific example of the above-described embodiment, the axial direction dx of the hole 51a is non-parallel to the axial direction dy of the second hole 54a and non-parallel to the axial direction dz of the third hole 55a. According to such an example, the orientation of the second hole 54a for guiding the second finger f2 and the orientation of the third hole 55a for guiding the third finger f3 are optimized independently of the orientation of the hole 51a. Can be optimized. Thereby, the use of the chopsticks 10 can be appropriately assisted.

Further, in the specific example of the above-described embodiment, the second auxiliary tool 50 has a regulation convex portion 56 protruding from the attachment portion 51 toward the first chopstick member 11. The regulation convex portion 56 contacts the first chopstick member 11 and regulates the first chopstick member 11 and the second chopstick member 12 from coming too close to each other. According to such an example, the first chopstick member 11 and the second chopstick member 12 are too close to each other until the chopstick tip 20 of the first chopstick member 11 and the chopstick tip 20 of the second chopstick member 12 intersect. It can be effectively prevented.

Further, in the specific example of the above-described embodiment, the second auxiliary tool 50 has a display unit 57 provided with a display 57a indicating how to attach it to the second chopstick member 12. According to such an example, the second auxiliary tool 50 can be stably and more reliably attached to the second chopstick member 12. That is, it is possible to prevent the second auxiliary tool 50 from being erroneously attached to the second chopstick member 12. Thereby, it is possible to effectively realize the assistance in using the chopsticks 10 and the promotion of learning how to use the chopsticks 10.

Further, in one embodiment described above, the chopstick members 11 and 12 are provided apart from each other along the wooden rod-shaped body 21 and the central axis CL of the rod-shaped body 21, and each of them has a central axis CL. It has a plurality of annular convex portions 22 that circulate around the periphery, and a coating layer 23 that covers the rod-shaped body 21 and the plurality of annular convex portions 22. The coating layer 23 has a base layer 23a and a plurality of particles 23b held by the base layer 23a. According to such chopstick members 11 and 12, a convex portion 20B caused by the annular convex portion 22 is formed on the surface of the chopstick tip 20 of the chopstick members 11 and 12, and the convex portion 20B is formed on the chopstick members 11 and 12. It orbits linearly around the central axis CL of. The convex portion 20B can effectively make food easier to pick up. Further, on the surface of the chopstick tips 20 of the chopstick members 11 and 12, fine irregularities due to the particles 23b of the coating layer 23 appear. According to this fine unevenness, it is possible to effectively prevent the pinched food from slipping from the chopstick members 11 and 12. Then, the synergistic action of the convex portion 20B and the fine unevenness on the chopstick tip 20 makes it easy to hold the food extremely effectively. Therefore, the chopsticks 10 according to the present embodiment are suitable for chopsticks for people who are unfamiliar with the use of chopsticks, and further for chopsticks for practicing how to use the chopsticks 10.

Further, a concave portion 20C is formed between two adjacent convex portions 20B. The length l1 of the recess 20C along the central axis CL of the chopstick members 11 and 12 is, for example, 1.5 times or more the length l2 of the convex portion 20B along the central axis CL of the chopstick members 11 and 12. And it is much longer. Therefore, it is possible to effectively prevent food debris from being clogged in the recess 20C. As a result, the chopsticks 10 can be kept clean by normal washing.

Further, in the specific example of the above-described embodiment, the chopstick members 11 and 12 further have a coating layer 23 and a coating layer 23 for covering the rod-shaped body 21. By providing the surface layer 24, it is possible to effectively prevent the wooden rod-shaped body 21 from absorbing water. Thereby, deterioration of the chopstick members 11 and 12 can be effectively prevented.

Further, in the specific example of the above-described embodiment, the chopstick members 11 and 12 having the central axis CL are provided apart from each other along the central axis CL, and each of them orbits around the central axis CL. It has a convex portion 20B of. A concave portion 20C is formed between two convex portions 20B adjacent to each other along the central axis CL. The length l1 along the central axis CL of the recess 20C is 2.6 mm or more and 3.4 mm or less, and the depth of the recess 20C is 0.1 mm or more and 0.3 mm or less. Fine irregularities are formed on the surfaces of the convex portion 20B and the concave portion 20C. According to such chopstick members 11 and 12, a convex portion 20B is formed on the surface of the chopstick tip 20 of the chopstick members 11 and 12, and the convex portion 20B is a line around the central axis CL of the chopstick members 11 and 12. Orbit in a shape. The convex portion 20B can effectively make food easier to pick up. Further, fine irregularities are formed on the surfaces of the convex portion 20B and the concave portion 20C. According to this fine unevenness, it is possible to effectively prevent the pinched food from slipping from the chopstick members 11 and 12. Then, the synergistic action of the convex portion 20B and the fine unevenness on the chopstick tip 20 makes it easy to hold the food extremely effectively. Therefore, the chopsticks 10 according to the present embodiment are suitable for chopsticks for people who are unfamiliar with the use of chopsticks, and further for chopsticks for practicing how to use the chopsticks 10.

In the above, one embodiment has been described based on the illustrated specific examples, but these specific examples are not intended to limit one embodiment. The above-described embodiment can be implemented in various other specific examples, and various omissions, replacements, and changes can be made without departing from the gist thereof.

10 Chopsticks 10a Tip 11 1st chopstick member 12 2nd chopstick member 18 Groove 18a 1st groove 18b 2nd groove 20 Chopstick tip 20A Main body 20B Convex part 20C Concave part 21 Rod-shaped body 22 Circular convex part 23 Coating layer 23a Base layer 23b Particle 24 Surface layer 30 1st auxiliary tool 31 Main body 32 1st main wall 33 2nd main wall 34 1st side wall 35 2nd side wall 36 Intermediate wall 37a 1st hole 37b 2nd hole 38a 1st engagement convex Part 38b Second engaging convex part 38c Third engaging convex part 39 Guide convex part 40 Intermediate member 41 Base 41a First support surface 41b Second support surface 41c Receiving recess 42 Biasing part 42a Protrusion 44 Biasing means 45 1 Ring part 45a 1st hole 50 2nd auxiliary tool 51 Mounting part 51a Hole 51b Engagement convex part CL Center axis ds Swing axis dx Axis direction dy Axis direction dz Axis direction

Claims (8)

The first chopstick member and the second chopstick member,
The main body portion that holds the first chopstick member and the second chopstick member so that the second chopstick member can be moved relative to the first chopstick member and is removable, and the second chopstick member. A urging means for urging the second chopstick member so that the chopstick tip is separated from the chopstick tip of the first chopstick member, and a first hole into which the user's first finger can be inserted are formed. A first auxiliary tool having a first ring portion fixed to the
A mounting portion having a hole into which the second chopstick member can be removably inserted, and a second ring portion having a second hole into which the user's second finger can be inserted and fixed to the mounting portion. A second auxiliary tool having a third ring portion formed with a third hole into which the user's third finger can be inserted and fixed to the mounting portion .
The main body is provided with a first hole into which the first chopstick member is removably inserted and a second hole into which the second chopstick member is removably inserted, and the first hole and the first hole are provided. It has an intermediate wall that separates the two holes,
The first auxiliary tool has an intermediate member provided inside the hollow of the main body portion.
The intermediate member includes a base portion that is fixed to the main body portion and separates the first hole and the second hole together with the intermediate wall portion, and an urging portion that extends from the base portion to form the urging means. Have,
The urging portion is a chopstick that is located between the intermediate wall portion and the second chopstick member and urges the second chopstick member . The first chopstick member and the second chopstick member,
The main body portion that holds the first chopstick member and the second chopstick member so that the second chopstick member can be moved relative to the first chopstick member and is removable, and the second chopstick member. A urging means for urging the second chopstick member so that the chopstick tip is separated from the chopstick tip of the first chopstick member, and a first hole into which the user's first finger can be inserted are formed. A first ring portion fixed to the first ring portion, and a first auxiliary tool having the same .
The main body is provided with a first hole into which the first chopstick member is removably inserted and a second hole into which the second chopstick member is removably inserted, and the first hole and the first hole are provided. It has an intermediate wall that separates the two holes,
The first auxiliary tool has an intermediate member provided inside the hollow of the main body portion.
The intermediate member includes a base portion that is fixed to the main body portion and separates the first hole and the second hole together with the intermediate wall portion, and an urging portion that extends from the base portion to form the urging means. Have,
The urging portion is a chopstick that is located between the intermediate wall portion and the second chopstick member and urges the second chopstick member . The chopsticks according to claim 1 or 2, wherein the first chopstick member is restricted from moving relative to the main body while being held by the main body. The main body is provided with a first hole into which the first chopstick member is removably inserted.
The chopsticks according to claim 3, wherein the first ring portion is provided on the outer surface of a wall portion of the main body portion that forms the first hole. The chopsticks according to claim 4, wherein the main body portion is provided on an outer surface of a wall portion forming the first hole and has a guide convex portion for guiding the first finger of the user. The chopsticks according to any one of claims 1 to 5, wherein the urging means is separated from the first chopstick member and urges only the second chopstick member. The second auxiliary tool has a regulating convex portion protruding from the mounting portion toward the first chopstick member.
The restricting convex portion, the first contact with the chopsticks member, to regulate the too close of the first chopstick member and the second chopstick members, chopsticks according to claim 1. An auxiliary tool used for chopsticks including the first chopstick member and the second chopstick member.
The main body portion that holds the first chopstick member and the second chopstick member so that the second chopstick member can be moved relative to the first chopstick member and is removable, and the second chopstick member. A urging means for urging the second chopstick member so that the chopstick tip is separated from the chopstick tip of the first chopstick member, and a first hole into which the user's first finger can be inserted are formed. A first ring portion fixed to the main body portion and an intermediate member provided inside the hollow of the main body portion are provided .
The main body is provided with a first hole into which the first chopstick member is removably inserted and a second hole into which the second chopstick member is removably inserted, and the first hole and the first hole are provided. It has an intermediate wall that separates the two holes,
The intermediate member includes a base portion that is fixed to the main body portion and separates the first hole and the second hole together with the intermediate wall portion, and an urging portion that extends from the base portion to form the urging means. Have,
The urging portion is an auxiliary tool for chopsticks located between the intermediate wall portion and the second chopstick member so as to urge the second chopstick member.

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