JP7025733B2 - Writing support tool that utilizes the range of motion of the knuckle - Google Patents

Description

The present invention relates to a writing support tool that guarantees the ease of writing characters by using a pencil, mechanical pencil, ballpoint pen, or the like, and contributes to the establishment of a desirable way of holding a writing instrument. ..

At elementary school, we started to teach how to hold a writing tool (pencil) from the beginning of school, and posted a diagram of "desirable way to hold (it used to be described as the correct way to hold)" in the classroom, and teachers often called out. I am working on it continuously. However, many children write letters in awkward ways, such as bending or squeezing their fingers. The situation gets worse as the grade progresses, the number of learning Chinese characters increases, and the number of characters written in the notebook increases.
If the way of holding is disturbed, it becomes difficult to write various strokes (writing in various directions) that compose the character, and the character shape is disturbed. Some children hold a pencil and write with enough force to tear the paper, some children do not like to apply pressure because it is painful, some children write with thin lines, and some children have unnatural movements and the lines of the strokes tremble. Appearing, each person copes with his / her own style in order to avoid the pain in his / her fingers, so that the way of holding becomes more disturbed, and it becomes fixed and habitualized.
Especially for children who have a remarkable disorder in how to hold it, we may recommend assistive devices to be worn on the fingertips for "correction", but it does not lead to "ease of writing" due to the feeling of restraint. Even with the use of such braces, the "desirable way of holding" has not yet been established. It is not possible to disregard the situation in which children in the developmental stage respond independently while feeling pain and fatigue in their fingers.
In addition, regarding writing with the left hand, in the past, parents often requested "correction to right-handed writing", but if the writer himself still feels inconvenienced, right-handed writing It is no exaggeration to say that the writing instruction was not given because the person himself had only dealt with it independently, imagining the target form of the case.

So far, the position of the fingertips of the three fingers (thumb, index finger, middle finger) has been determined, and the "desirable way of holding" that keeps the palm in a round shape has been set as the "correct way of holding", and various things have been aimed at holding it in that form. Auxiliary tools for correction have been developed. However, even if these are used, the disorder of "holding" will only become more serious, and as the number of characters to be written increases as the grade progresses, the writing will become disgusted or disgusted due to finger fatigue. It could not stop the increase of children.
In particular, in the case of an assistive device with strong orthodontic properties, the user is greatly affected by its existence, which causes cramping for the writer himself, and when the assistive device is removed, the original possession is eventually achieved. There is also the problem of returning to the direction.

The above-mentioned orthodontic aids are disclosed in, for example, Patent Document 1 and Patent Document 2.

The writing posture correction device disclosed in Patent Document 1 is intended for "correction", and in particular, the restraint feeling is not distorted in that the "positioning portion" due to the recess is limited on the surface of the correction device.
Further, in paragraphs 0033 and 0034 of Patent Document 1, referring to FIG. 7, "the grip portion 17 has a third positioning portion 15 such that the user grips the ring finger and the little finger and naturally curves. It is formed on one side away from the positioning portion 14 of 2. As shown in FIG. 7, the ring finger and little finger of the user are attached after the middle finger, and the first positioning portion 13, the third positioning portion 15, and the third positioning portion 15. And by connecting the force points of the second joint of the user's thumb, the left side of the third joint of the middle finger, and the third joint of the pinky finger by the fourth positioning portion 16, all the fingers of the user can be moved. It curves naturally like a five-piece banana. "" In the writing posture correction device 1 according to the present invention, the user uses the first positioning portion 13 and the fourth positioning portion 16 to connect the second finger of the thumb. The third finger segment of the index finger is positioned on the brush tube about 2 to 3 cm away from the tip of the head 100a, and the left side of the third finger segment of the user's middle finger hits the brush tube by the third positioning portion 15. When the ring finger and little finger are touched and attached after the middle finger in a very easy posture, the writing posture correction device 1 according to the present invention can correct the writing posture of the user's finger, and the writing tool 100 can be used. When grasping, it is possible to make it customary for the user to hold the five fingers and palm, which are slightly curved due to the hollow palm, so as to create a hollow space. "
On the other hand, Non-Patent Document 2 explains the function of the fifth finger (pinkie) as follows. Looking at the palm, in addition to the thumb ball at the base of the first finger (thumb), a bulge due to the muscle that moves the little finger (hypothenar muscle) called the little finger ball can be seen at the base of the fifth finger (pinkie). Like the first finger of the fifth finger (thumb), there is a muscle for flexion in the palm, and the flexion of the fifth finger (pinkie) is an exercise necessary to strengthen the force to grip an object with the hand, rather By approaching the palm (no hollow space is created), the little finger makes it easier for the ring finger and middle finger to move in tandem.
Therefore, as shown in FIG. 7 of Patent Document 1, there is a problem that it is difficult to apply writing pressure in a state where the little finger can be opened in the same manner as the ring finger, and it becomes difficult to write. That is, in this Patent Document 1, not only the function of the fifth finger (pinkie) is not taken into consideration, but also the burden is placed against the natural structure of the fingers.

Further, the writing calibrator disclosed in Patent Document 2 is provided with a thumb rest portion, an index finger rest portion, and a middle finger rest portion, and is provided with a place for placing three fingers. Referring to 1 to FIG. 4, the writing calibrator 10 has a curved curved shape, but the thumb t, the index finger f, and the middle finger m are the correct gripping parts, that is, the thumb rest portion 11, the index finger rest portion 12, and the middle finger rest. The part 14 is curved in terms of human engineering so that it can be grasped naturally. "However, this captures only the static state, and considers the dynamic state when using it in actual writing. However, this also leads to correction to a suitable way of holding in a static state, and there is a problem that the discomfort when the calibrator is removed and used becomes large.
Further, in actual writing, not only the three fingers of the thumb, index finger, and middle finger, but also the condition of the ring finger, little finger, and palm are important as described above, but the writing calibration tool of Patent Document 2 is the thumb and index finger. , There is a problem in that the writing posture is calibrated only by the place of the middle finger.

In Non-Patent Document 1, which is the book of the inventor of the present application, a warning is given to the habituation of the self-styled way of holding, which causes a situation in which the fingers are burdened. We have come to emphasize consideration of the range of motion of joints and the function of finger muscles, which could not be satisfied with the existing writing calibration tools of.
Also, when writing with the left hand, unlike the case of writing with the right hand, for example, when writing a line in the horizontal direction (from left to right toward the paper), use the writing tool with your thumb. However, in Patent Document 1 and Patent Document 2, no consideration is given to this, and left-handed writing is not considered.
The details of this left-handed writing are described in Non-Patent Document 3 written by the inventor of the present application, and the inventor of the present application has also added consideration to this.

By the way, "desirable way of holding" is sometimes called "correct way of holding", but in the current educational world, it is avoided to make the habit (habit) of the writer himself "wrong", and "desirable way of holding". Is becoming established.
The "desirable way of holding" in the present invention means that the fingertips of the thumb, index finger, and middle finger are held so as to be in a triangular position when the tip of the core is turned toward the front, and the contact position between the upper part of the shaft of the writing instrument and the finger is the index finger. It refers to the side surface (near between the 2nd joint and the 3rd joint). With the upper part of the axis as the fulcrum, the distance to the tip of the writing instrument is not changed, and the tip draws an arc by bending each finger to draw a stipple.
This is the way of holding shown in the official textbook, and there are many previous studies on making this "desirable", but in Non-Patent Document 4, which is the book of the inventor of the present application, especially the upper part of the shaft and the finger. We examined in detail that the contact position should be on the side of the index finger (near between the 2nd and 3rd joints) instead of the base of the thumb, which allows proper pressure to be applied and is impossible in any direction. It is clarified that it is effective as a way of holding (= "desirable way of holding") that allows you to write a point painting without a problem.

However, in reality, in many cases, the upper part of the shaft of the writing instrument is brought into contact with the base of the thumb to receive the shaft, and as shown in FIG. 15, the thumb is shaped like a "he" (Fig. 15). (See (A)), it is extended or warped so that it protrudes from the index finger (see FIG. 15 (B)).
The inventor of the present application describes in Non-Patent Document 1 the mechanism by which the holding method is disturbed as follows. When writing with a hard-brush writing tool, when writing pressure is applied to the paper surface, a force is applied so that it is pushed back from the desk surface to the fingers with the same force. Then, especially the thumb has a wide range of motion and the wobbling of the base part is large, so if you write by receiving the axis there, you will feel unstable and grip it. Also, if you bend your index finger and thumb to write letters, if the axis is at the base of your thumb, the distance from the tip of your index finger and thumb to the upper contact position of the axis will change and you will be attracted. It corresponds to the expansion and contraction of the distance by stretching or bending it, or making it into a "he" shape. This does not allow the original range of motion of the knuckle, and imposes a burden on the knuckle (+ finger muscle), causing pain in the fingers when trying to apply pressure. Therefore, the contact position between the upper part of the shaft and the finger is important.

In this way, the inventor of the present application uses writing instruments such as pencils, mechanical pencils, and ballpoint pens that are used daily by infants and adults, and when writing on paper such as notebooks and notebooks, pays attention only to how to hold them. It is desirable to be aware of how to move the fingers instead of doing it, and to make use of the movable range of the joints of each finger that grips the writing instrument, as described in Non-Patent Document 1 and Non-Patent Document 4. It has led to research results that it is important as a way of holding.

Nowadays, the increase of children with weak writing pressure is also regarded as a problem. It is more difficult than ever to optimize the writing pressure by making it a habit to write on a mobile information terminal equipped with a touch panel (just touch it lightly) and to bend the back of the hand (a posture that ignores the structure of the fingers). In addition, there are some inconveniences such as the muscles of the lower arm being stretched due to the posture of bending the back of the hand.
For some time, changes in the character environment surrounding children, such as the diversification of writing instruments, the increase in horizontal writing formats, and the advent of personal computers and mobile phones, have been major issues in penmanship education. However, due to the promotion of ICT based on the Ministry of Education, Culture, Sports, Science and Technology's "Environmental Improvement Plan for IT Education", the number of scenes where characters are handwritten will decrease and it will not be possible to spend time on writing guidance. There is concern that it will become more serious.
In this revision of the Course of Study, "School education that can ensure that children have the qualities and abilities necessary to become the creators of the future even in the midst of rapid social changes such as informatization and globalization. "Realization" was set as the main axis. Therefore, the information utilization ability is positioned as the qualities and abilities that are nurtured and utilized as the basis of all learning beyond subjects, etc., and it is stipulated that it will be steadily developed throughout the curriculum. (1) ". In addition, it stipulates that learning activities utilizing ICT will be enhanced in order to improve lessons from the perspective of proactive, interactive and deep learning (active learning). Especially in elementary schools, information means It stipulates that learning activities for learning basic operations and learning activities for acquiring logical thinking ability while experiencing programming will be carried out systematically. 3) ".
In light of these circumstances, it may be necessary to give up writing guidance, saying, "It is only necessary to write so that it can be read as a result," because it is an era of promoting ICT, or to put the use of ICT and handwriting in conflicting positions. Instead, effective and fundamental writing guidance is required to solve problems related to finger pain and dominant hand so that children can enjoy writing independently. It is necessary to establish a "desirable way of holding" that guarantees "ease of writing" in a natural way that eliminates restrictions such as correction, and then to support finger input to ICT equipment and the use of a stylus. ..

Utility Model Registration No. 3109564 Special Table 2006-518679 Gazette

Examination of the mechanism for improving the "holding method" of a hard brush by holding a brush "Shosho Shodo Education Research" No. 29 (edited by the National University Shosho Shodo Education Society) pp. 69-78 March 2015 Sugi ▲ Saki ▼ Tetsuko Takimoto Mitsuyoshi "Ergonomics" Masamitsu Oshima, Takao Okubo 1989 Asakura Shoten Correlation between "how to hold in left-handed writing" and "how to proceed" "Shosho Shodo Kenkyu" No. 30, pp. 11-20 March 2016 Sugi ▲ Saki ▼ Tetsuko Correlation between "how to hold" and "how to proceed" in hard-written writing "Shosho Shodo Education Research" No. 28 (edited by the National University Shosho Shodo Education Society) pp. 1-10 March 2014 Sugi ▲ Saki ▼ Tetsuko・ Mitsuyoshi Takimoto

In the present invention, the writing support tool attached to the writing tool has a structure that makes use of the range of motion of the finger joint, which was confirmed to be important as a result of basic research, and the use of this tool itself is "correction". It is "support" that does not restrain the user or hinder the touch of the writing, and after utilizing this tool, it is possible to hold the writing tool in the desired way and write with it without this tool. The aim is to contribute to the establishment of a "desirable way of holding" that allows writing that makes use of the range of motion of the joints, and also to establish the desired way of holding for the user when using this tool with the tool removed. The purpose is to obtain a writing support tool that makes it difficult to feel the difference in usability depending on the presence or absence of this tool, and enables writing by grasping the writing tool in a desirable way without using this tool.

The present invention
"1. It is a writing support tool that supports writing in a desirable way of holding.
The writing support tool includes a main body and a mounting portion that is detachably attached to the barrel of the writing instrument.
When the main body is grasped by the palm in a state where the tip of the thumb and the tip of the index finger are in close proximity or in contact with each other, the first joint of the thumb, the central portion of the base of the thumb, and the barrel are constant. It has a convex curved thumb-side abutment formed so as to be separated from each other.
A writing support tool characterized in that the barrel can be brought into contact with the vicinity between the second joint and the third joint of the index finger to enable confrontational movement between the thumb and another finger.
2. 2. The writing support tool according to item 1, wherein the writing support tool includes a bulging portion having a squeezed shape extending downward of the main body.
3. 3. The writing support tool according to item 2, wherein the upper outer periphery of the bulging portion is provided with a constricted portion.
4. A thumb-side tongue piece protruding from above to downward is formed on one of the outer sides of the main body with a recess inside, and an index finger-side tongue piece protruding from above to downward on the other outside of the main body. 1. Writing support tool described in.
5. With the rear end of the recess formed inside the index finger side tongue piece attached to the barrel of the writing instrument, the barrel can come into contact with the vicinity between the second joint and the third joint of the index finger. The writing support tool according to the above item 4, characterized in that it is arranged at a position. ".

In the invention according to the above paragraph 1, when the main body grips the writing support tool with the palm in a state where the tip of the thumb and the tip of the index finger are in close proximity or in contact with each other, the central portion of the base of the first joint thumb of the thumb. And the shaft tube are separated by a certain distance, and the shaft tube comes into contact with the vicinity between the second and third joints of the index finger, so that the extension / flexion movement of the thumb joint is almost on the vertical plane (Y-axis). ), The thumb is guided to a position where the extension / flexion movement of the joint can be performed almost horizontally on the plane (X-axis), and the thumb and the other fingers can perform confrontational movements. .. By ensuring this confrontational movement, the thumb joint can be extended and flexed on the horizontal surface, and the thumb joint part is twisted into an unreasonable direction. It is possible to avoid the pain that accompanies it, and it is possible to contribute to the optimization of writing pressure by utilizing the range of motion of the knuckle.
The fingertips of the thumb, index finger, and middle finger should be able to directly grip the front part of the barrel of the writing instrument, and the rear part of the barrel of the writing instrument should be near the space between the second and third joints of the index finger. Even when the writing support tool is removed and used after the user has established the desired way of holding it, it is difficult to feel the difference in usability depending on the presence or absence of the writing support tool. Even without tools, it can help you to hold the writing instrument in the desired way and write.

In the invention according to the above item 2, the writing support tool is provided with a bulging portion having a squeezed tip extending downward from the main body of the writing support tool, so that the palm is naturally grasped by the three fingers of the middle finger, the ring finger, and the little finger. It is possible to create a posture in which the pen is in a state of being in a state of being in a state of being, and to promote the movement of applying appropriate pressure. This is intended to naturally apply force to the tips of the thumb and index finger as the middle finger, ring finger, and little finger are held.
In addition, since the bulging part has a squeezed shape, an unnatural hollow space is not created inside the ring finger or little finger, so after the user has established the desired way of holding, remove the writing support tool. Even when used, it is difficult to feel the difference in usability depending on the presence or absence of the writing support tool.
The shape of the tip squeeze does not strictly determine how to hold the finger, but the conical shape makes the surface smooth and makes the finger feel good when grasped.
In addition, by making the bulging part into a conical tip narrowing shape, the hollow space formed inside the middle finger, ring finger, and little finger becomes smaller in this order, and the bulging part is especially inside the little finger. Because it is located so that it touches lightly about the width of the fingertip, the little finger approaches the palm, the ring finger and middle finger work together to make it easier to move, and by grasping the little finger, it becomes easier to apply force to the fingertip, and the writing pressure is applied appropriately. Additional writing is possible. This is especially important in left-hand writing.

In the invention according to the third paragraph, by providing a constricted portion on the upper outer periphery of the bulging portion of the second paragraph, the main body and the bulging portion can be relatively flexed when the writing support tool is gripped. Therefore, the thumb, index finger, and middle finger that grip the barrel attached to the main body, and the ring finger and little finger that grip the bulge can be moved without restraining each other, making writing easier.
In addition, when writing, the main body and the bulging part can be displaced independently with respect to the movement of the fingers, so the presence of the bulging part is not manifested in the negative direction. However, even when the writing support tool is removed and used after the desired holding method has been established for the user, it is difficult to feel the difference in usability and brush touch depending on the presence or absence of the writing support tool.

In the invention according to the above four items, the thumb side tongue piece and the index finger side tongue piece are both elastically deformed, so that the versatility of the size of the main body is expanded, and it is possible to correspond to various finger lengths and palm sizes. In the writing state, each part on which the force is applied to the writing support tool is elastically deformed, so the user is not restrained by the writing support tool, and how to move the finger while stretching and bending each finger. It becomes possible to support the extension and flexion of the finger joint.

In the invention according to the above item 5, the shaft cylinder is provided near the space between the second joint and the third joint of the index finger with the rear end of the recess formed inside the tongue piece on the index finger side attached to the shaft cylinder of the writing instrument. By arranging it in a position where it can come into contact with each other, it is possible to always hold the writing instrument in a natural way without being aware of it by the user.

According to the present invention, a desirable holding method is established for the user, and even when the tool is removed and used, it is difficult to feel a difference in usability depending on the presence or absence of the tool. I was able to obtain a writing support tool that enables me to hold and write on my own.

It is a view of the writing support tool for the right hand from the front, and the right side of the drawing is arranged on the thumb side and the left side of the drawing is arranged on the index finger side. It is the figure which looked at the writing support tool for the right hand from the side (thumb side). It is the figure which looked at the writing support tool for the right hand from the opposite side (index finger side) of FIG. It is the figure which looked at the state which held the writing support tool attached to a shaft cylinder from the front. It is the figure which looked at the state which held the writing support tool attached to a shaft cylinder from the rear. It is a figure which conceptually shows the state which a writing support tool is deformed in the state of use. It is a view of the writing support tool for the left hand from the front, and the left side of the drawing is arranged on the thumb side and the right side of the drawing is arranged on the index finger side. It is the figure which looked at the state which held the writing support tool attached to a shaft cylinder from the front. It is a figure of a state in which a mobile information terminal equipped with a touch panel is operated with a writing support tool attached to a pencil. It is the figure of the state of inputting with the input pen to the mobile information terminal equipped with the touch panel with the writing support tool attached to the input pen. It is a vertical end view of the modification 1 of the writing support tool. It is a figure of the state which the bulging part was removed from the main body of the writing support tool of the modification 1. It is the figure which looked at the state which only the main body of the writing support tool of the modification 1 was attached to a shaft cylinder, and was grasped from the front. It is a vertical end view of the modification 2 of the writing support tool. It is a figure which shows the state which puts the axis of the writing instrument on the base of the thumb and is writing, (A) shows the state which the thumb is in the shape of "he", and (B) is the state which the thumb protrudes from the index finger. It is a figure which showed.

The writing support tool in this embodiment will be described below with reference to the drawings.

FIG. 1 is a front view of the writing support tool of the present embodiment, in which the right side of the drawing is arranged on the thumb side and the left side of the drawing is arranged on the index finger side. FIG. 2 is a view of the writing support tool of the present embodiment as viewed from the side (thumb side). FIG. 3 is a view of the writing support tool of the present embodiment as viewed from the opposite side (index finger side) of FIG. FIG. 4 is a front view of the writing support tool attached to the barrel. FIG. 5 is a rear view of the writing support tool attached to the barrel as viewed from the rear. FIG. 6 is a diagram conceptually showing a state in which the writing support tool is deformed in a usage state.
In the description of the figure, with the pencil attached to the writing support tool of the present embodiment, the front side where the writing tip of the pencil is arranged is expressed as the front side, and the opposite side is expressed as the rear side.
The same members and the same parts in the figure have the same reference numerals. The present invention is not limited to the following embodiments.

The writing support tool 1 shown in FIG. 1 is for the right hand, and includes a main body 2 and a bulging portion 3 having a squeezed tip extending below the main body 2. The main body 2 has an upper surface portion 2a formed of a convex curved surface, and the thumb side tongue piece 2d and the index finger side tongue piece 2e are projected downward from the outer end portions 2b and 2c on both sides of the main body 2. At the same time, a recess 4a is formed between the thumb side tongue piece 2d and the bulging portion 3, and a recess 4b is formed between the index finger side tongue piece 2e and the bulging portion 3, and the thumb side tongue piece 2d and the index finger side are formed. The tongue piece 2e is formed so as to be elastically deformed in the direction of the bulging portion 3 and the opposite direction. When the main body 2 is gripped, as shown in FIG. 4, the thumb abuts on the thumb side tongue piece 2d, and the index finger abuts on the index finger side tongue piece 2e. The side surface of the thumb side tongue piece 2d is formed in a convex curved surface shape so that the central portion of the first joint of the thumb and the base of the thumb and the barrel are separated by a certain distance, and is provided as a thumb side contact portion with which the thumb abuts. The rear end surface 2f is bulged rearward from the bulging portion 3 (see FIGS. 2 and 3) so that the inner surface of the thumb can be easily fitted.

The bulging portion 3 is formed in a conical tip narrowing shape, and a constricted portion 5 is formed on the outer periphery of the upper portion of the bulging portion 3. In the present embodiment, the constricted portion 5 is formed so as to suspend the recess 4a and the recess 4b, and the recess 4a and the recess 4b form a part of the constricted portion 5. The constricted portion 5 is formed in an annular shape on the outer circumference of the bulging portion 3 while being inclined obliquely with respect to the central axis of the conical bulging portion 3.

The writing support tool 1 of the present embodiment is molded of urethane foam, which is an elastic material, and the dimensional values corresponding to each dimension line shown in FIG. 1 are calculated based on the measured average values of adult girls. There is. The total length H1 from the top of the main body 2 to the tip of the bulge 3 is about 65 mm, and the length H2 from the top of the main body 2 to the deepest part of the recess 4a is formed to be 25 mm from the deepest part of the recess 4a. The length H3 from the top of the main body 2 to the deepest part of the recess 4b is formed to be 15 mm, and the length H3 from the deepest part of the recess 4b to the tip of the thumb side tongue piece 2d is formed to be 10 mm. The length H5 up to the tip of 2e is formed to be 15 mm.
Further, the W1 between the outermost edges, which is the entire width of the main body 2, is 35 mm, and the length W2 from the center line of the bulging portion 3 formed at an angle of 30 degrees to the outermost edge of the thumb side tongue piece 2d is 15 mm. The length W3 from the center line of the bulging portion 3 to the outermost edge portion of the index finger side tongue piece 2e is 20 mm. Further, W4, which is the maximum width of the bulging portion 3, is set to 20 mm, and W5, which is the minimum width due to the constricted portion 5, is the proximal phalanx portion of the index finger (specifically, the inside of the hand of the proximal phalanx = the base of the finger). Although it has the width necessary for contact, the barrel of the writing tool is guided above it, and it secures a gap so that the tongue pieces on the index finger side and thumb side can be brought closer to the center of the palm. It is set to 13 mm. The wall thickness T1 of the thumb side tongue piece 2d is 6 mm, and the wall thickness T2 of the index finger side tongue piece 2e is 8 mm. Further, the angle D1 of the conical bulging portion 3 is set to 30 degrees.

Next, the usage state of the writing support tool 1 of the present embodiment will be described with reference to FIGS. 4 to 6. As shown in the figure, the writing support tool 1 is attached to the barrel 101 of the pencil 100, and the pencil 100 and the writing support tool 1 held by the right hand have a shape in which the side wall of the main body 2 gradually tapers forward. (See FIGS. 2 and 3), the fingertips of the thumb, index finger, and middle finger naturally approach the front part of the barrel 101 while holding the main body 2, and as shown in FIG. 4, writing is performed. When the tip 102 is turned toward you, the tips of the thumb, index finger, and middle finger are arranged so that they are in a triangular positional relationship.
Further, the surface of the index finger side tongue piece 2e of the main body 2 is rounded so that the index finger can be gripped while gently bending, and the surface of the thumb side tongue piece 2d of the main body 2 can be gripped by slightly bending the thumb. It is rounded.
Further, when the main body 2 on the index finger side is gripped, the upper part of the shaft of the barrel 101 and the side surface of the index finger (near between the second joint and the third joint) are in contact with each other.

The shaft cylinder 101 is attached to the inside of the recess 4b formed between the index finger side tongue piece 2e and the bulging portion 3 of the writing support tool 1. The recess 4b is a mounting portion for inserting and inserting the pencil 100, and the inner width thereof is formed to be 10 mm, which is various because the width dimension of the cylinder 101 of the pencil 100 is larger than 7.2 mm. It is designed to be compatible with writing tools.
Even if the dent is wider than the shaft diameter of the writing instrument, the shaft cylinder 101 can be received by the widest rear portion 3a of the bulging portion 3 and the index finger side tongue piece 2e, so that the shaft is prevented from being inadvertently shaken. can.
The barrel 101 is attached with the index finger side tongue piece 2e and the bulging portion 3 narrowly attached from the left and right by the elastic force of the index finger side tongue piece 2e, and can be freely moved in the vertical direction during writing. The vertical movement of the writing tip 102 is not restricted.
In the writing support tool 1 of the present embodiment, the rear end of the recess 4b formed inside the index finger side tongue piece 2e is attached to the barrel 101 of the pencil 100, and the second joint and the third joint of the index finger are attached. The shaft cylinder 101 is arranged at a position where it can come into contact with the shaft cylinder 101 in the vicinity of the space.
Further, as described above, the index finger side tongue piece 2e is formed so as to be elastically deformed in the direction of the bulging portion 3 and in the opposite direction, and when the bulging portion 3 is elastically deformed in the opposite direction. By setting the force of the writing tip 102 to be weaker than the movement of writing a vertical image (force when moving in the left-right direction) by extending / bending the index finger, the writing tip 102 of the writing tip 102 You can also freely move laterally.
As shown in FIG. 6, in the writing support tool 1, when used, the thumb side tongue piece 2d bends toward the bulging portion 3 with respect to the force F1 applied by the thumb (not shown), and the index finger (FIG. 6). The index finger side tongue piece 2e flexes toward the bulging portion 3 with respect to the force F2 applied by (not shown). Further, the bulging portion 3 flexes in any direction diagonally from the position of the constricted portion 5 to the front, back, left and right, relative to the main body 2. Since the index finger side tongue piece 2e can be flexed to the opposite side of the bulging portion 3, it can be attached to a writing instrument such as a ballpoint pen or a mechanical pencil having a large shaft diameter in addition to a pencil.

From the above, the writing support tool 1 of the present embodiment holds the front part of the barrel 101 so that the fingertips of the thumb, index finger, and middle finger are in the triangular position while holding the main body 2. The upper part of the shaft of the cylinder 101 and the side surface of the index finger (near between the second joint and the third joint) can be gripped in a desirable way of holding, and each part on which the writing support tool 1 is applied is applied in the writing state. Since it is elastically deformed, the user is not restrained by the writing support tool, and it becomes possible to naturally move the finger by stretching and bending each finger while drawing a dot picture, and always in a natural way of holding. It becomes possible to grasp the pencil 100.
Further, the outer surface of the main body 2 is formed in a convex curved shape as a whole, and when the writing support tool 1 is gripped, a finger is placed along the outer surface of the writing support tool 1, and the first joint of the thumb and the thumb The central part of the base is separated from the barrel 101 by a certain distance, and the thumb is not stretched or bent, and the upper part of the shaft of the barrel 101 and the side surface of the index finger (second joint and third). Since the palm naturally curls lightly when it is in contact with the joints), when the palm is lightly rolled and placed on a desk loosely, the flexion surface of the index finger and the flexion surface of the thumb The angle is close to 90 degrees, which makes it possible to perform confrontational movements that make it easy to apply force, and it is possible to write while maintaining the "desirable way of holding", and it is possible to apply appropriate writing pressure to the paper surface. can.
In addition, since both the thumb side tongue piece 2d and the index finger side tongue piece 2e are elastically deformed, the versatility of the size of the main body 2 is expanded, and it is possible to correspond to various finger lengths and palm sizes. be.

Further, as shown in FIGS. 4 and 5, the pen tip is directly grasped by the fingertips (belly) of the thumb and index finger and the side surface of the tip of the middle finger, and the side surface of the index finger (near between the second joint and the third joint) is directly held. Since it comes into contact with the barrel, the touch of the writing is not hindered by using this tool, and even if the writing support tool is removed and used after the user has established the desired way of holding it, the presence or absence of the writing support tool is present. It is difficult to feel the difference in usability, and even without the writing support tool 1, it is possible to hold the pencil 100 in a desirable way of holding and write. In particular, in the present embodiment, as described above, the writing support tool 1 is molded from an elastic material, and each part in contact with the finger or palm is naturally deformed by the gripping force, so that the finger touch is good. Even when the writing support tool 1 is being used, the user is less likely to feel uncomfortable, and the burden on the hand can be reduced.

Further, when the writing support tool 1 of the present embodiment is gripped, the bulging portion 3 is gripped by the middle finger, the ring finger, and the little finger, but the bulging portion 3 is formed into a conical tip narrowing shape. Therefore, the hollow space formed inside the middle finger, ring finger, and little finger becomes smaller in this order, and the bulge is located inside the little finger so that it is lightly in contact with the width of the fingertip of the little finger. , The little finger approaches the palm, the ring finger and the middle finger work together to make it easier to move, and by grasping the little finger, it is easier to exert force and write.
As mentioned above, this little finger gripping motion is particularly important in left-handed writing.

Next, the left-handed writing using the writing support tool of the present invention will be described.
FIG. 7 is a front view of the writing support tool for the left hand, in which the left side of the drawing is arranged on the thumb side and the right side of the drawing is arranged on the index finger side. FIG. 8 is a front view of the writing support tool attached to the barrel.
Since the writing support tool 10 shown in FIG. 7 is molded substantially axially symmetric with the writing support tool 1 of FIG. 1, the same parts are designated by the same reference numerals and the description thereof will be omitted.
The writing support tool 10 has a length H5 of 30 mm from the deepest part of the recess 4b to the tip of the index finger side tongue piece 20e, and the writing support tool 1 has a length H5 from the deepest part of the recess 4b to the index finger side tongue piece 20e. It is formed 10 mm longer than the length 20 mm to the tip of the. As shown in FIG. 8, in the case of left hand writing, the user grasps the index finger side tongue piece 20e with the index finger and the middle finger to use the ring finger, and in the case of right hand writing, the function of the thumb (movement to write a horizontal drawing) is performed. It is formed with the intention of holding it, and in that case, the index finger side tongue piece 20e is lengthened so that it can be gripped naturally. Further, in the writing support tool 10 shown in FIG. 7, the center line C2 of the conical bulging portion 30 extending below the main body 20 is the bulging portion 3 of the writing support tool 1 shown in FIG. The tip is inclined so as to be closer to the index finger side tongue piece 20e with respect to the center line C1, and the angle D2 is 20 degrees. As a result, as shown in FIG. 8, the bulging portion 30 is easily gripped by the ring finger and the little finger, and the elasticity of the bulging portion 30 also contributes to supporting the extension / bending of the ring finger.
When drawing a line in the horizontal direction (from left to right toward the paper), in right-hand writing, the action is to push with the thumb, but in left-hand writing, the index finger and thumb are generally extended and the paper is pierced. Since it is difficult to write because it moves like a poke, the writer often devises it, bends the wrist, and writes with the so-called reverse hand, which makes me feel inconvenient.
Therefore, it is recommended that the writing support tool 10 utilizes the extension / flexion movement of the ring finger whose range of motion of the middle bone is larger than that of the index finger or the middle finger according to the above configuration, and pushes the ring finger with the nail side of the ring finger. At this time, the thumb side tongue piece 2d also leans back to the bulging portion 30 to support the movement of the thumb, so that the ring finger can be moved naturally.

The materials of the writing support tools 1 and 10 of the above-described embodiment are not limited, but from the viewpoint of holding by hand and removing the feeling of restraint, foamed plastics such as urethane foam and polyethylene foam, and styrene-based materials are used. It is preferable to select an elastic material such as an elastomer such as olefin or olefin, or a rubber material such as natural rubber or silicon rubber because it is easy to hold. In particular, when the constriction portion 5 is provided on the upper outer periphery of the thumb side tongue piece 2d, the index finger side tongue piece 2e, 20e, or the bulging part 3, 30, it is preferable to select a flexible material.
When a soft material is used among the elastic materials, the surface is compressed and deformed when a gripping force is applied even if the writing support tool is slightly larger than the size of the user's hand. Therefore, it becomes possible to fit it in the hand. In addition, even if an elastic material that is not soft enough to be compressively deformed is used, the outer shape can be easily deformed by making the inside of the tool hollow or by providing a slit on the surface. Therefore, it is possible to fit it in the hand as well as a soft material.
In addition, when the writing support tool is made of a transparent material, it is possible to write while seeing through the part hidden by the writing support tool at the time of writing, so that the writer himself / herself is in a grasped state. Can be visually confirmed. Also in this case, it is preferable to use a transparent elastic material such as a polyurethane elastomer so that each part can be elastically deformed.

FIG. 9 is a diagram showing a state in which a mobile information terminal 200 equipped with a touch panel is operated (pinch out) with a thumb and an index finger while the writing support tool 1 is attached to the pencil 100. In FIG. 9, the bulging portion (not shown) is held in a state of being gripped by the palm, the middle finger, the ring finger, and the little finger, and in that state, the writing tip portion is tilted sideways. It becomes difficult for 102 to touch the surface of the panel, and input can be performed with a finger. Therefore, it is highly convenient in that writing with a pencil and input to the touch panel with a finger can be performed without holding or releasing the pencil each time. If the writing tip 102 is slightly retracted, the portable information terminal can be used without tilting the barrel 101 (without changing the posture of holding the tool). Since the writing support tool 1 of the present embodiment is mounted with the pencil 100 sandwiched between the recesses 4b, it is easy to move the shaft cylinder 101 back and forth when retracting and pulling out the writing tip 102. be.

FIG. 10 is a diagram showing a state in which the writing support tool 1 is attached to the input pen 300 and input is performed with the input pen to the mobile information terminal 200 equipped with the touch panel. The writing support tool 1 can input in a desirable way even with an input pen.
Therefore, the concern that the way of holding the writing instrument will be further collapsed or the writing pressure cannot be optimized due to the promotion of ICT will be dispelled by using this tool, and rather the desirable way of holding when using ICT equipment. Is to be established. If you hold it in the desired way, you can put pressure on your fingertips without straining your knuckles and muscles, so even if you write with increased pressure, your fingers will not hurt. If that stance is established, it is possible to properly apply pressure to the paper surface when writing with a hard brush tool.

FIG. 11 is a vertical end view of a modification 1 of the writing support tool. The writing support tool 11 shown in FIG. 11 is connected by a ball joint by a sphere 31a formed in the bulging portion 31 and a holding portion 21a formed in the main body 21. The main body 21 is molded of urethane foam, which is an elastic material, and the bulging portion 31 is molded of polypropylene resin.
Similar to the writing support tool 1, the bulging portion 31 of the writing support tool 11 can also move its tip in any direction diagonally forward, backward, left, and right relative to the main body 21.
Further, in the writing support tool 11 of the modification 1, the main body 21 and the bulging portion 31 are detachable, and as shown in FIG. 12, the bulging portion 31 is removed from the main body 21 and the bulging portion 31 is removed. As described above, only the main body 21 can be attached to the barrel 101 for use. Therefore, the writing support tool 11 of the modified example can be used step by step depending on the degree of fixation of the desired holding method.
If the writing support tool 11 is molded of a material that does not absorb water, it can be washed with water and kept clean at all times.

FIG. 14 is a vertical end view of a modification 2 of the writing support tool. In the writing support tool 12 shown in FIG. 14, the locking recess 32a formed in the bulging portion 32 and the locking recess 22a formed in the main body 22 are connected by a rod-shaped joint member J formed of silicon resin. .. The main body 22 is made of polypropylene resin, and the bulging portion 32 is also made of polypropylene resin.
Similar to the writing support tool 1, the bulging portion 32 of the writing support tool 12 also moves its tip in an arbitrary direction diagonally back and forth, left and right by bending the joint member J relative to the main body 22. Can be done.
Unlike the main body 2 and the main body 22 molded with urethane foam, the main body 22 of the writing support tool 12 is molded with a harder polypropylene resin, but as shown in the figure, the thumb side tongue piece 22d and the main body 22 The thickness of the index finger side tongue piece 22e is formed to be thinner than the wall thickness of each of the main body 2 and the main body 22 so that it can be elastically deformed.

The writing support tool of the present invention can establish a desirable holding style for a wide range of age groups, from children to adults, and can be used not only for writing on paper with writing instruments such as pencils, mechanical pencils, and ballpoint pens, but also for input pens. It is also suitable for input to a mobile information terminal.
Especially for children before and after entering elementary school who have problems with finger dexterity, the joints are soft and it is necessary to hold them unreasonably at that time to avoid immobilization. It is of great significance to reduce the burden by the writing support tool of the present invention utilizing the natural range of motion of. In addition, for people with disabilities who have stiffness in their fingers, the stress of holding a writing instrument can be reduced by wearing the writing support tool of the present invention. In special support education, ICT is becoming more advanced than in ordinary classes, so it can be effective in finger input and the use of an input pen.

1,10,11,12,13 ... Writing support tool,
2,20,21,22 ... Main body,
2a ... upper surface, 2b ... outer end, 2c ... outer surface, 2d, 22d ... thumb side tongue piece, 2e, 20e, 22e ... index finger side tongue piece, 2f ... rear end face,
21a ... Hugging part,
22a ... Locking recess,
3,30,31,32 ... bulging part,
3a ... rear,
31a ... sphere,
32a ... Locking recess,
J ... Joint member,
4a ... concave,
4b ... recess,
5 ... Constriction,
100 ... pencil,
101 ... Shaft tube,
102 ... Writing tip,
200 ... Mobile information terminal,
300 ... Input pen.

Claims (4)

It is a writing support tool that supports writing in a desirable way of holding.
The writing support tool comprises a main body having a mounting portion for detachably mounting the barrel of the writing instrument.
On one of the outer sides of the main body, a thumb-side tongue piece protruding from the upper side to the lower side is formed by providing a concave portion on the inner side.
On the other side of the outer side of the main body, a tongue piece on the index finger side protruding from the upper side to the lower side is formed by providing a concave portion on the inner side.
The recess formed inside the tongue piece on the index finger side is used as the mounting portion for mounting the barrel of the writing instrument.
When the main body is grasped by the palm in a state where the tip of the thumb and the tip of the index finger are in close proximity or in contact with each other, the first joint of the thumb, the central portion of the base of the thumb, and the barrel are at a fixed distance. It has a convex curved thumb-side contact portion formed so as to be separated from each other.
A writing support tool characterized in that the barrel can be brought into contact with the vicinity between the second joint and the third joint of the index finger to enable confrontational movement between the thumb and another finger. The writing support tool according to claim 1, wherein the writing support tool includes a bulging portion having a squeezed shape extending downward of the main body. The writing support tool according to claim 2, wherein a constricted portion is provided on the upper outer periphery of the bulging portion. With the rear end of the recess formed inside the index finger side tongue piece attached to the barrel of the writing instrument, the barrel can come into contact with the vicinity between the second joint and the third joint of the index finger. The writing support tool according to claim 1 , wherein the writing support tool is arranged at a position.

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