JP7271828B1 - writing aid - Google Patents

Abstract

[Problem] When writing letters or drawing on letters, New Year's cards, notebooks, etc., the little finger or palm that is in contact with the paper gets dirty, or the written letters or drawn pictures get dirty or blurred. There are issues to be addressed. [Solution] We have developed a writing aid that reduces the contact area with the paper so that the distance from the paper is kept so that the hands do not get dirty, and the written letters and pictures are less likely to get smudged or smeared. . In the present invention, the portion that contacts the paper is only the contact protrusion, thereby reducing the contact area. Also, in order to make it easier to get over the dents in the edge and center of the notebook for line breaks, etc., a curved projection is made from the main body of the aid, reducing the burden of writing and drawing. We aimed to make it as thin as possible so that it does not separate from the paper while following the shape of the finger as much as possible so that there is no sense of incongruity when writing. It is portable and miniaturized so that it can be used anywhere. [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a writing aid used when writing.

Writing aids of this type include those that are used by setting them on paper (hereinafter referred to as "installation type aids") and those that are used by being worn on the hand or wrist for writing (hereinafter referred to as "wearing ), and various types of installation-type aids and mounting-type aids have been proposed (see Patent Documents 1 to 10).

Japanese Patent Application Laid-Open No. 08-282192 (installation type) Japanese Utility Model Laid-Open No. 54-033743 (wearing type) Japanese Unexamined Patent Application Publication No. 2001-213090 (wearable type) JP 2010-228433 A (wearable type) Utility model registration No. 3220090 (wearable type) Japanese Patent Application No. 2001-3807 (wearable type) Japanese Utility Model Laid-Open No. 57-9597 (wearing type) Japanese Utility Model Laid-Open No. 51-101846 (wearing type) Japanese Utility Model Laid-Open No. 54-174459 (wearing type) JP 2014-94468 A (wearable type)

The advantages of the above-mentioned installation-type assistive device are that the hand does not get dirty at all because the hand does not touch the writing paper, and there is no friction between the hand and the paper because the hand does not touch the writing paper. , and that it is very convenient to carry by hand. In addition, since the hand does not touch the paper, there is an advantage that the characters and pictures written on the paper can be smudged. On the other hand, since it must be installed, the shape tends to be large, and there is a problem that it is inconvenient to carry. In addition, the action of human writing is a fairly sophisticated action, and even if it is just a little higher than the usual position, it feels strange, and if there is a large distance between the hand and the paper, such as a stationary assistive device, it will be difficult to use normally. There is a difficult aspect.

On the other hand, many of the wearable assistive devices described above are integrated with the hand, and have the advantage of eliminating the discomfort caused by the distance between the hand and the paper. Another advantage is that it can be miniaturized and is convenient to carry. The problem is that the friction between the attached writing aid and the paper increases, which increases the burden of writing. It is difficult to get over the edge of the notebook.

In order to reduce the friction between the paper and the writing aid and prevent the written letters and pictures from being stained, it is naturally necessary to reduce the contact area with the paper. Therefore, although there are various expressions, as a contact protrusion, tip, or protrusion, a protrusion from the auxiliary tool body (the part on which the little finger or the side of the palm is placed, hereinafter referred to as the "auxiliary tool body") are often growing. How to arrange those protrusions (hereinafter referred to as "contact protrusions") is important, but the size is also important. Naturally, the smaller the size, the smaller the surface that comes into contact with the paper, the less likely it is that letters or pictures will be smeared, and the less burdensome the writing action will be. However, just by making it smaller, even if you can suppress the friction one by one, it may hit the edge of the notebook and become a big burden when moving such as line breaks. In particular, as of 2021, left-handed people are often raised as left-handed, and the mainstream of writing characters is horizontal writing, so for left-handed people, line breaks in notebooks are almost always at the edge or center of the notebook. need to overcome. At that time, if there are many small contact protrusions, each one will catch on the edge of the notebook and become a burden for writing.

As a writing aid, the important points are that it does not stain the hand and the letters and pictures written on the paper, and that it can assist writing. Various efforts have been made in previous studies to prevent staining of letters and pictures written on the hand and paper. In addition, various studies have been conducted in terms of assisting writing. The actions of humans such as writing letters and drawing pictures are very sophisticated actions. In other words, the movements are complex and the result of long training is mastered. Therefore, the slightest thing can lead to discomfort or inconvenience. Therefore, there are inventions such as gloves that are worn only on the little finger or only the little finger and the ring finger (hereinafter referred to as "glove type"). Among the wearable types, the glove type can minimize discomfort, but receives a large amount of friction. Furthermore, when used for a long time, it may become stuffy and uncomfortable, and the written characters and pictures may be stained.

The assisting tool of Patent Document 9 (Japanese Utility Model Laid-Open No. 54-174459) is of the gripping type similar to the present invention, but it must be consciously gripped, and it is a heavy burden for human beings to write. The problem is that it becomes In the present invention, a rod-shaped object (hereinafter referred to as "inner grip part") that is installed above the auxiliary tool body and gripped with the little finger was prototyped. has proven to be difficult.

In addition, the auxiliary tool disclosed in Patent Document 10 (Japanese Patent Application Laid-Open No. 2014-94468) has problems of lack of stability and time-consuming preparation. In addition, there is also the problem of loss of comfort due to hand sweat and the like when used for a long period of time.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a writing aid which can prevent the hands from getting dirty when writing, reduce the dirt on letters and pictures written on paper, and promote the correct way of holding the tool.

In order to solve the above-mentioned problems, the writing aid of the present invention includes an aid body on which the hand is placed, and an inner and outer side of the little finger provided on the aid body and placed on the aid body. The little finger of the hand that grips the writing instrument is inserted into the inner and outer gripping portions, and the contact protrusion is provided on the bottom surface of the auxiliary tool body. It is characterized in that it is used by gripping the inner grip portion.
In such a writing aid, it is preferable to provide a plurality of contact protrusions on the bottom surface of the main body of the aid. Also, in order to easily get over, it is preferable that the shape of the contact protrusion is an elongated circular arc or a circular arc.

In addition, it is preferable that a curved protrusion extending upward in an arc is provided at the tip side corner of the auxiliary tool body, and the curved protrusion extends in an arc continuously from one of the plurality of contact protrusions. By configuring in this way, the outer side of the curved protrusion becomes a curved surface, and while exceeding the thickness of a general notebook, it does not have a height that makes it inconvenient when writing, and the notebook can be smoothly written. You can move the helicopter and the central part.

In this writing aid, it is preferable that the outer gripping portion is positioned closer to the distal end than the inner gripping portion in the longitudinal direction of the main body of the aid. The main body of the assistive device will firmly support the little finger and hand. If the grasping parts are arranged side by side and perpendicular to the main body of the assisting device, the back of the main body of the assisting device, that is, the lateral part of the palm cannot ride on the main body of the assisting device when it is gripped by a human hand. By inserting this misalignment (when viewed from the ceiling, it is arranged diagonally), the main body of the assistive device will receive a wide range from the little finger to the side of the palm when gripped. Assuming that the gripping portion on the inside of the little finger is the origin, the gripping portion on the outside of the little finger is preferably at a position of about 10 to 80 degrees.

Moreover, it is preferable that the center line of the insertion space between the inner gripping portion and the outer gripping portion is inclined inward toward the distal end side with respect to the longitudinal direction of the main body of the assisting device. If the grip portion does not tilt, the grip portion will hit the palm of the hand when writing, leading to a great sense of discomfort. be able to. This inclination is preferably about 15 to 75 degrees toward the palm side.

In addition, an inner locking portion protruding toward the outer gripping portion is provided at the tip of the inner gripping portion, and an outer locking portion protruding toward the inner gripping portion is provided at the tip of the outer gripping portion. With this configuration, when the little finger is inserted between the inner gripping portion and the outer gripping portion, the inner locking portion of the inner gripping portion and the outer locking portion of the outer gripping portion are engaged. It acts on the upper side of the inserted finger, and as a result, the grip part fits the little finger without consciously grasping it, and the writing aid follows the hand even without consciously grasping it, so that writing can be freely performed. become. Moreover, by configuring in this way, even if the little finger is stretched without being gripped, it will not fall off.

In addition, in this writing aid, the outer gripping portion may be provided with a mounting portion for an ornament. By doing so, animals such as pigs, elephants and birds, characters, etc. can be attached to the mounting portion. You can attach sculptures such as the face, upper body, plants such as flowers and trees. The younger the user of this writing aid, the more they can enjoy using it.

According to the writing aid of the present invention, the following five effects are obtained. The first is that the main body of the aid can keep hands completely clean. The point is that you can safely and comfortably put your hand on it. Secondly, by providing the contact protrusion, it is possible to reduce friction and make it easier to get over the edge of the notebook. In addition, since the contact area is small, the risk of the written characters and pictures smearing or getting dirty is reduced. Third, it is possible to provide a writing aid that fits comfortably in the hand without the need to be conscious of gripping due to the characteristic gripping portions, that is, the inner and outer gripping portions, and there is no risk of bleeding. It does not come off easily even if you extend your fingers. Fourth, its size can be reduced. Because it is small enough to fit in a pencil case, it is easy to carry and can be used comfortably on the go. It is a point that can be described in the name list etc. Fifth, by refining each part to the minimum necessary shape, there is no need to cover unnecessary parts, so it is possible to reduce stuffiness such as hand sweat compared to gloves.

1 is an exploded perspective view showing an embodiment of a writing aid in exploded form; FIG. The perspective view which shows the state which combined the writing aid of FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2; FIG. 3 is a bottom view of the writing aid of FIG. 2; The bottom view of the writing aid provided with the contact protrusion of a 1st modification. The bottom view of the writing aid provided with the contact protrusion of a 2nd modification. The perspective view which looked at the writing aid of FIG. 2 from diagonally forward. The top view which looked at the writing aid of FIG. 2 from upper direction. Sectional drawing which cut|disconnected the writing aid of FIG. FIG. 3 is a perspective view showing a usage state of the writing aid of FIG. 2;

Hereinafter, embodiments of the writing aid of the present invention will be described with reference to the drawings. In the following description, an example for a right-handed person is shown in the drawings, but if it is for a left-handed person, it will be in the form of an opposite mirror image, like a mirror.

First, an embodiment of a writing aid will be described with reference to FIGS. 1 to 4. FIG. FIG. 1 is an exploded drawing showing the parts of the writing aid. In FIGS. 1 and 2, the illustrated writing aid comprises a main body 3 and a pair of grips 1 and 2. I have. The front and rear parts of the auxiliary tool main body 3 protrude inward in a substantially semicircular shape, and arcuate recesses are provided between the front and rear parts. The pair of grasping portions 1 and 2 are synthesized (joined) by using an adhesive or the like, for example, as indicated by the dotted line, but may be configured integrally with the main body of the assisting device.

The length (longitudinal length) of the assisting tool main body 3 is, for example, about 3 to 15 cm, its width (lateral direction) is, for example, about 1 to 10 cm, and its thickness is, for example, 0.5 cm. It is about 1 to 30 mm. Moreover, the overall height of the writing aid is, for example, about 1 to 6 cm.

One gripping part 2 functions as an inner gripping part, is the side to be gripped by the little finger, and is positioned inside the little finger. The other gripping part 1 functions as the outer gripping part and is positioned on the outside of the little finger. The outer gripping part 1 and the inner gripping part 2 are installed on the upper surface of the auxiliary tool body 3 and extend upward from the auxiliary tool main body 3. By gripping the inner gripping part 2 with the little finger, the gripping part 2 can be grasped with the little finger. The lateral part of the palm comes to rest on the auxiliary tool main body 3.

The outer gripping portion 1 and/or the inner gripping portion 2 may be cut. The outer and inner gripping portions 1, 2 are basically cylindrical. Of course, a simple columnar shape may be used, but by shaving the outer peripheral side surface of the columnar shape to conform to the shape of the little finger, it can be used more comfortably. For example, the inner grip portion 2 is cut to match its inclination. And the outer peripheral side has a cut that matches the shape of the little finger so that the little finger can easily grip it. In addition, the outer gripping portion 1 has cuts in the portion that the little finger touches to match the shape of the little finger.

By providing two gripping portions in this manner, an outer gripping portion 1 and an inner gripping portion 2, the following features arise. Even if this writing aid does not fit the size of the finger to some extent, for example, it is somewhat small, the finger will not stop bleeding and can be used safely. You can use it without falling when you extend your finger. This is because when a pair of gripping portions (outer and inner gripping portions 1, 2) is made in a ring-like shape, the size is somewhat small, and as a result of forcibly inserting it, it becomes difficult to pull out. It is a shape that I thought from the fact that the blood has stopped.

As an image of the shape of the pair of gripping portions (outer and inner gripping portions 1, 2), imagine a fairly thick ring (shaped like a donut), and attach the ring to the writing aid main body 3. About four-fifths (4/5) is buried and installed, then about one-fifth (1/5) of the upper part is cut off and separated into two like cow horns, and then the Z-axis (Indicated as an axis representing height) as a base axis, a deviation (the outer grip part 1 at the position rotated counterclockwise from the inner grip part 2 as the starting point) is inserted, and the inclination of the hand when writing When tilted to the same extent, it becomes close to the image of two grasping parts.

A curved protrusion 4 is provided at a tip-side corner of the auxiliary tool main body 3 (specifically, the tip side of the inner grip portion 2). The curved protrusion 4 is shaped to cover the little finger of the hand placed on the auxiliary tool main body 3. - 特許庁As shown in FIG. 3, the curved projection 4 is curved upward and inward and extends in an arc shape, and is one of the contact projections described later (in this form, it is located on the front side of the auxiliary tool main body 3). In combination with the contact protrusions 5) provided, it smoothly rides over the edge of the notebook.

Referring also to FIG. 4, a pair of contact protrusions 5 and 6 are provided on the bottom side of the auxiliary tool main body 3 (the surface that comes into contact with a notebook or the like). One contact protrusion 5 is provided on the bottom surface of the auxiliary tool main body 3 on the front side, and the other contact protrusion 6 is provided on the bottom surface on the rear side of the auxiliary tool main body 3. These contact protrusions 5, 6 are shaped like a ship's bottom. , and extends in the width direction of the auxiliary tool body 3. By forming such a shape, the contact area with the paper to be written can be reduced as much as possible, and the edge and center of the notebook It allows you to smoothly overcome the dents in the part. Since the bottom-shaped contact protrusions 5 and 6 are connected to the curved protrusion 4 of the auxiliary tool main body 3 to exhibit a higher effect, the length thereof is the same as the width of the auxiliary tool main body 3. degree.

As for the height of the contact protrusions 5 and 6, when writing on the board in elementary school, etc., a notebook with a thickness of about 5 mm and a grid of 5 mm is often used. However, it is preferable that the height of the contact protrusions 5 and 6 be as small as possible when the writing aid is not in use. It becomes about 1 to 30 mm.

As shown in FIG. 3, the contact protrusion 5 on the front side has a shape extending in an arc continuously from the contact protrusion 5 to the curved protrusion 4 described above. As a result, the outer side from the contact protrusion 5 to the curved protrusion 4 becomes a continuous curved surface, and while exceeding the thickness of a general notebook, it does not have a height that makes writing inconvenient. , you can smoothly move the edge and center of the note.

More specifically, the curved protrusion 4 has a curved outer surface, and when combined with the ship bottom-shaped contact protrusion 5 provided on the bottom surface of the auxiliary tool main body 3, it has a substantially half-moon shape. Although it exceeds the thickness of a standard notebook, it does not have a height that makes it inconvenient when writing, and it is possible to smoothly move the edges and the center of the notebook.

FIG. 2 shows each component shown in FIG. 1 adhered and fixed with an adhesive or the like. This writing aid can be made of, for example, a synthetic resin such as ABS resin. , Friction is relatively small, convenient for writing. For this reason, materials such as plastic that are light and have a certain degree of durability are good, and similar results can be obtained with stereolithography resin.

Since this writing aid has an excellent shape, it can be applied to materials such as wood, metal, paper, and aluminum. In addition, even a somewhat heavy material such as a paperweight can be used as a paperweight and can also be used as a writing aid, so it can be applied to light to heavy materials. Furthermore, by dividing the auxiliary tool main body 3 into, for example, two or three or more layers, for example, the upper layer is made of rubber, etc., it can be used comfortably, and the inner grip part 2 can be made of hard rubber, for example. It is also possible to increase flexibility by doing so.

1 and 2, the inner gripping portion 2 and the outer gripping portion 1 extend upward from the surface of the aid main body 3, but these gripping portions 1, 2 have radii of, for example, zero. .1 to 30 mm, and their height is, for example, about 0.1 to 50 mm. Since these grasping portions 1 and 2 are used frequently and bear a burden, they are required to be strong enough not to break.

If the auxiliary tool main body 3 is bent, it will increase the contact area with the paper and become fragile. There is a need.

FIG. 3 is a cross-sectional view cut along line AA in FIG. The outer grasping part 1 of FIG. 2 is shown viewed from an angle such that it is positioned on the right side of the auxiliary tool main body 3 in FIG. 3 . In FIG. 3, the curved protrusion 4 of the assisting device main body 3 has a curved surface shape so as to match the shape of the little finger. In FIG. 3, the curved protrusion 4 is preferably lower in height than the outer grasping portion 1. In FIG.

Also, in FIG. 3, the tip of the curved projection 4 is depicted as sharp, but it is desirable to have a smooth curved shape so as not to injure. In FIG. 3, the front contact projection 5 is shown in cross section. Although the contact protrusion 5 is described as having a ship bottom shape, as can be understood from FIG. 3, it is formed in an elongated circular arc shape similar to the shape of a ship or yacht drawn by children. In this way, by forming both ends in the longitudinal direction (front-rear direction) of the auxiliary tool main body 3 into a raised arc shape, the edges of the notebook can be touched without colliding with each other, so that the surface of the open node can be flattened. You will be able to get over it smoothly. Instead of such a shape, the bottom of the ship can be cut in the horizontal direction (perpendicular to the front-rear direction), that is, a trapezoidal shape with a long upper base. Such a shape increases the contact area with the paper, but is effective in terms of stability and production.

FIG. 4 shows a bottom view of the writing aid. In FIG. 4, one contact protrusion 5 is provided on the front side of the aid body 4, and the other contact protrusion 6 is provided on the rear side. is provided in These contact protrusions 5 and 6 are substantially parallel to each other, but are not perpendicular to the longitudinal direction (front-to-rear direction) of the auxiliary tool body 4, but are obliquely provided so as to incline rearward toward the outside. ing. By slanting in this manner, the tips of the contact protrusions 5 and 6 can come into contact with the edges of the notebook.

The inclination angle α (see FIG. 4) of these contact protrusions 5 and 6 is, for example, about 10 to 80 degrees, preferably about 20 to 60 degrees. By setting such an angle of inclination, when the edge of the notebook collides with it, it is possible to get over it from the front side of the ship bottom type as much as possible. In other words, if the notebook is the sea and the edge is a high wave, it will be easier to overcome the waves by hitting them from the front of the ship. In other words, when the ship receives waves from the side, it receives a large resistance and becomes weak, and when it receives waves from the front, the resistance is small and strong.

In this example, the inclination angles of the pair of contact protrusions 5 and 6 are made equal, but these inclination angles may be changed. Also, although not shown in the drawings, these contact protrusions 5 and 6 are made thinner, and a third contact protrusion is added in the middle, or four contact protrusions are provided at approximately equal intervals. good too.

FIG. 5 is a bottom view of a writing aid with contact protrusions of the first variant. In FIG. 5, in this embodiment, four contact protrusions 20, 21, 22, and 23 are provided on the bottom surface of the auxiliary tool main body 3. As shown in FIG. A pair of contact protrusions 20 and 21 are arranged on the front side of the auxiliary part main body 3 and provided on both side ends of the front part, and the remaining pair of contact protrusions 22 and 23 are provided on the auxiliary tool main body 3. It is arranged on the rear side and provided on both side ends of this rear part.

In this modified form, the contact protrusions 20 to 23 are formed in a hemispherical arc shape, and this shape also enables smooth movement. These contact protrusions 20 to 23 have a radius of, for example, about 0.3 to 30 mm and a height of, for example, about 0.1 to 50 mm. In FIG. 5, the contact protrusions 20 to 23 are drawn quite short, but the height can be changed, and when copying sutras, the contact protrusions can be extended a little longer to make writing easier.

FIG. 6 is a bottom view of a writing aid provided with a second modified contact protrusion. In FIG. 6, in this second modification, three contact protrusions 24, 25, 26 are provided on the bottom surface of the auxiliary tool body 3. As shown in FIG. When writing on a notebook or the like, the center of gravity is placed on the person holding the writing instrument. It has a shape in which two contact protrusions 26 are provided and supported at one point. The positions of these contact protrusions 24 to 26 are approximate, and if there are two points on the side where the center of gravity is applied and one point on the opposite side, there is no problem even if there is some deviation. In addition, two points are provided on the front in the longitudinal direction (the direction of the grip) (the front part) and one point is provided on the back in the longitudinal direction (the rear part) so that the main body of the aid does not tilt when writing. There is no problem with placement.

FIG. 7 is a perspective view of the writing aid as seen obliquely from the front and above. It is the inner grasping portion 2 that I would like to explain with reference to FIG. A vertical line B in FIG. 7 extends vertically from the surface of the auxiliary tool body 3 . The inner grasping portion 2 is not parallel to the perpendicular line B, but tilts toward the inside (that is, toward the outer grasping portion 1 side). It is preferably about 1 to 70 degrees. This tilting of the inner gripping portion 2 represents the angle at which it is tilted, not the rock-paper-scissors when writing.

In general, when writing, a person does not hold the paper straight like rock-paper-scissors, but tilts the palm of the paper to make it easier to write. Therefore, if the grip portion does not tilt, the palm of the hand will touch the grip portion when writing, leading to a great sense of discomfort. On the other hand, by providing the above-mentioned inclination angle β, it becomes possible to write in a natural writing style, and it is possible to write without discomfort. .

In this embodiment, the outer grip portion 1 is also tilted toward the inside (that is, toward the inner grip portion 2), but it does not necessarily have to be tilted inward. In FIG. 7, reference number 4 is a curved protrusion provided on the auxiliary tool main body 3, and reference number 5 is a contact protrusion. The contact protrusion 5 may have a ship bottom shape, or may have a hemispherical shape.

As clearly shown in FIGS. 1, 2 and 7, the tip of the outer gripping portion 1 is provided with an outer locking portion 31 protruding toward the inner gripping portion 2 to provide an inner gripping portion. An inner engaging portion 32 projecting toward the outer gripping portion 1 is provided at the tip portion of the portion 2 . The outer gripping portion 1 and its outer locking portion 31 and the inner gripping portion 2 and its inner locking portion 32 define an insertion space for inserting the little finger. The stop portion 31 and the inner locking portion 32 are engaged with the inserted little finger, thereby preventing the auxiliary writing instrument from falling off from the little finger when the hand is lifted.

These outer locking portion 31 and inner locking portion 32 can be formed, for example, as follows. By providing, for example, a spherical portion at the tip of the outer and inner gripping portions 1, 2, the outer and inner gripping portions 1, 2 fit the little finger inserted into the little finger without consciously grasping it, and the user does not have to grip it. , the writing aid follows the hand, and the user can write freely. Furthermore, since this ball is attached, even if you do not grip your little finger and stretch it out, it will not fall.

In this embodiment, the shape of the spherical portion is reduced to the limit to minimize discomfort during writing. As for the shape, first, the upper portion of the spherical portion is cut to about the height of the little finger. Then, the inside grip portion 2 of the little finger is cut at the inclination that has appeared. On the other hand, the spherical portion of the outer grasping portion 1 has its outer side shaved. This is to cope with the way of gripping, in which the ring finger largely rests on the little finger when writing. When held correctly, the ring finger will protrude slightly above the pinky finger, but some people hold it in such a way that it protrudes greatly. In that case, this cut allows the writing aid to be used without pain or discomfort.

FIG. 8 is a plan view of the writing aid as seen from above. In FIG. 8, the longitudinal direction (front-rear direction) of the assisting device main body 3 is defined as vertical, and the lateral direction (width direction) is defined as horizontal. Mathematically speaking, if the X-axis is horizontal and the Y-axis is vertical, it can be confirmed that the inner gripping part 2 and the outer gripping part 1 are not at the same position in the Y-axis direction. , this is the above-described longitudinal (front-to-rear) displacement. In FIG. 8, for example, if the inner grasping portion 2 is the origin (0, 0), the outer grasping portion 1 is not at the position (1, 0) with respect to this origin, but at (1, 1). position, (1, 2) position, or (1, 3) position, such as the position of Y>0 with respect to the origin. It is provided at a position closer to the front end than the inner grip portion 2 in the longitudinal direction of the main body 3 .

The inclination angle θ of the outer gripping portion 1 with the inner gripping portion 2 as the origin is preferably, for example, 10 to 80 degrees. When the holding part 2 is gripped, the auxiliary tool main body 3 can receive it widely from the little finger to the side of the palm.

The misalignment of the outer grip part 1 to the inner grip part 2 toward the front side (they are not at the same position on the Y-axis) is the reason why the auxiliary tool main body 3 moves between the little finger and the palm when the inner grip part 1 is gripped. It will be in a position to support the side part. When using this writing aid, the user starts by gripping the inner grip part 2 instead of putting the hand on the aid main body 3 and gripping it. In other words, at the moment of grasping, the assisting device main body 3 immediately moves to a position supporting the little finger and the lateral part of the palm. I will be able to help you.

In this writing aid, an insertion space for inserting and positioning the little finger exists between the inner grip portion 2 and the outer grip portion 1, and the center line of this insertion space is the longitudinal direction of the main body 3 of the aid. It is preferably inclined inward toward the distal end side with respect to the direction (front-rear direction), and the inward inclination angle γ (see FIG. 8) is preferably 15 to 75 degrees, and preferably 30 to 50 degrees. degree is more preferred.

FIG. 9 is a cross-sectional view of a writing aid (the form shown in FIG. 5) provided with four contact projections 20-23. In FIG. 9, the curved protrusion 4 extends in an arc shape from the auxiliary tool main body 3. Two contact protrusions 20 and 21 are provided on the front side of the auxiliary tool main body, and the remaining two contact protrusions are provided on the rear side. Two contact lugs (not shown in FIG. 9) are provided. In this form, unlike the ship bottom shape shown in FIGS. There is a space between the two, and with such a configuration, the area of contact with the paper is reduced, reducing the risk of the written characters and pictures smearing or smearing. On the other hand, after the inner contact protrusion 20 has climbed over the edge of the notebook, the outer contact protrusion 21 has to climb over the edge of the notebook again. , if one fills in a sheet of paper, the risk of staining what is written is reduced, and the burden to overcome is less, so it is useful.

FIG. 10 is a diagram showing an example of how this writing aid is used. In this writing aid, a mounting portion (not shown) is provided on the outer surface of the base portion of the outer grip portion 1, and an ornament 40 is mounted on this mounting portion. This mounting portion may be provided on the outer surface of the tip of the outer gripping portion 1, and can be recessed in an appropriate portion of the outer gripping portion 1 according to the user's preference. The mounting portion can be composed of, for example, a mounting protrusion or a mounting recess for detachably mounting the ornament 40, and the ornament 40 may be fixedly attached with an adhesive or the like. Also, as the ornament 40, various shaped objects such as characters, animal faces, birds, and flowers can be used.

In this writing aid, the outer portion of the outer grip portion 1 becomes a unique point. As a writing aid, it has an extremely sophisticated shape, including the necessary parts, so the writing aid itself is rarely seen when in use. However, only the outer part of the outer gripping part 1 can be confirmed to be in use. Therefore, an ornament such as a modeled object is attached as a design to this outer portion.

In Fig. 10, the thickness is not expressed, but by attaching a thick design (such as a three-dimensional model with height, width, and height), the presence becomes more attractive, and the user is entertained and encouraged to use it. It's like Also, due to the protrusion of the modeled object and other decorations, if the ring finger protrudes greatly from the top of the little finger, the ring finger will hit the modeled object and cause pain and discomfort. It encourages the transition of Since writing is the result of long-term training, it is often difficult to correct. For a user who does not hold it correctly and the ring finger falls toward the little finger, the thickness may be eliminated and a two-dimensional design such as a drawing may be applied, or It is also possible to design the modeled object itself in a shape that supports the ring finger.

In the illustrated embodiment, parts such as the main body of the auxiliary tool are not designed. It is also possible to enclose a thin object to be attached to the inside with resin, and create a design that is pleasing to look at and makes you want to use it not only when you hold it, but even before you hold it.

1 Outer Grip Part 2 Inner Grip Part 3 Auxiliary Tool Main Body 4 Curved Protrusions 5, 6, 20, 21, 22, 23, 24, 25, 26 Contact Protrusions 31 Outer Locking Part 32 Inner Locking Part

Claims (6)

an auxiliary tool body on which a hand is placed; inner and outer grasping portions provided on the auxiliary tool body and positioned inside and outside the little finger placed on the auxiliary tool body; and a bottom surface of the auxiliary tool body. A curved protrusion extending upward in an arc shape is provided at a tip side corner of the auxiliary tool body, and the curved protrusion is continuous from the contact protrusion. This writing aid is formed to extend in an arc shape, and is used by inserting the little finger of the hand that grips the writing instrument into the inner and outer gripping parts and gripping the inner gripping part with the inserted little finger. 2. The contact protrusions according to claim 1, wherein a plurality of the contact protrusions are provided on the bottom surface of the auxiliary tool main body, and the distal end portions of the plurality of contact protrusions are formed in an elongated arc shape or an arc shape. writing aid. an auxiliary tool body on which a hand is placed; inner and outer grasping portions provided on the auxiliary tool body and positioned inside and outside the little finger placed on the auxiliary tool body; and a bottom surface of the auxiliary tool body. The outer gripping portion is located on the distal end side of the inner gripping portion in the front-rear direction of the auxiliary tool body, and the inner gripping portion and the outer gripping portion are provided. The center line of the insertion space between the parts is inclined inward toward the distal end side with respect to the front-rear direction of the auxiliary tool body, and the little finger of the hand that grips the writing instrument is inserted into the inner and outer grip parts. A writing aid that is used by inserting and grasping the inner holding part with the inserted little finger. An inner locking portion protruding toward the outer gripping portion is provided at the tip of the inner gripping portion, and the tip of the outer gripping portion protrudes toward the inner gripping portion. 4. A writing aid according to claim 3, further comprising an outer engaging portion, wherein said inner gripping portion and said outer gripping portion act on a little finger inserted into said insertion space. 3. A plurality of said contact protrusions are provided on said bottom surface of said auxiliary tool main body, and the tip portions of said plurality of contact protrusions are formed in an elongated circular arc shape or circular arc shape. 5. A writing aid according to any one of Item 4. 4. The writing aid according to claim 1, wherein the outer gripping portion is provided with a mounting portion for mounting a decoration.

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