JP2011031502A - Writing utensil holder attached to finger, and writing utensil for attaching to finger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a writing utensil holder to be attached to finger, in which a writing utensil is held in the thumb side of a forefinger, and another work can be performed even in the holding state, and which has five functions such as positioning of the writing utensil, advancing/retreating/expansion/contraction, formation of gradient, stabilization of posture, simple operation, and to provide a writing utensil for attaching to finger. <P>SOLUTION: A position of a connection part is arranged under both annular bodies after extended approximately to a base joint of a forefinger, a writing utensil is set so as to rotate in a fan shape with the connection part as a fulcrum, and various means for having the five functions are arranged around the connection part corresponding to a type of the writing utensil or a tool to be attached to a finger. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention does not need to hold or place a writing instrument each time when writing and another work are performed alternately, and can perform another work while the writing instrument is attached to the finger, The present invention relates to a finger wearing writing instrument.
The writing instruments mentioned here are the writing instruments in a broad sense including sticks, fountain pens, ballpoint pens, magic pens, sign pens, mechanical pens, etc. Writing is the act of writing (drawing) characters, symbols, pictures, etc. To tell. Note that this is not the case for writing instruments that have a unique grip, such as picture brushes and brushes, and writing by them.

Conventionally, when writing and another work are alternately performed, the operation of holding and placing the writing instrument each time is repeated, which is inefficient and troublesome. In order to solve such a problem, many writing implement holders devised to carry the writing implement on a finger or hand have been disclosed.
In addition, although the purpose and problem are different, the solutions are similar, and the writing instrument aids and writing instrument supports that have been devised for the handicapped handicapped person and those with weak gripping power, Several practice tools and corrective tools are disclosed. Among them, typical prior art includes the following.

JP 2005-271570 A JP2005-231338

Prior art JP-A-2005-271570 and JP-A-2005-231338 described above are similar writing techniques, but are writing implement holders that hold a writing instrument on the index finger and hold it on the side of the index finger. A circular writing instrument holding portion is rotatably coupled with a pin as a basic configuration, and a magnet is provided on the holding portion of the writing instrument or a member for hooking the writing instrument is provided. (Japanese Patent Application Laid-Open No. 2005-271570, second page, line 22 to line 23, Japanese Patent Application Laid-Open No. 2005-231338, line 26 to line 29)

In general, when writing, the three fingers of the thumb, forefinger, and middle finger are used to hold and move the writing instrument from three directions and angles. And it is ideal to hold the writing instrument on the thumb side of the index finger as the most suitable place where you can easily switch the writing instrument to the writing posture when you want to write and you can do another work while holding the writing instrument in your hand Conceivable.
However, when the two ring-shaped bodies are actually simply connected with pins and the writing instrument is held on the thumb side of the index finger, it can be seen that it is very difficult to use as it is. This is because there are several problems that must be solved technically in order to hold the writing instrument on the thumb side of the index finger and use it while alternately switching between the holding posture and the writing posture. First, in the holding position, it is ideal to hold the writing instrument parallel to the index finger, but in the writing position the rear part of the writing instrument is located on the side of the index finger, but the tip of the writing instrument is located under the index finger and the index finger A small triangular space is formed between the forefinger and the writing instrument. In order to form such a shape, it is necessary not only to change the angle by rotating the writing instrument, but also to have a function of forming an inclination at which the finger and the writing instrument intersect. Secondly, in the writing posture, the tip of the writing instrument protrudes about 2 to 3 cm in front of the index finger. It may get in the way of the work. Therefore, in the holding posture, the writing instrument is retracted or shortened as much as possible so that it is positioned behind the index finger. Writing instrument advance / retreat function or expansion / contraction function is required. Furthermore, the third is a writing instrument localization function in which the writing instrument does not reach the required angle and position or stays at a predetermined angle and position when switching alternately between the writing posture and the holding posture, Fourthly, there is a need for a posture stabilizing function that reduces the posture of the writing instrument even if the finger is released from the writing instrument, in order to reduce fatigue of hands and fingers in the writing attitude as well as in the holding attitude. And fifthly, when the writing posture and the holding posture are alternately switched, a simple operation function that can be switched easily and instantaneously and that can be switched only by the movement of the thumb closest to the writing instrument is desired. An easy-to-use writing tool finger holder and a finger wearing writing tool that can be used without difficulty and can maintain the correct writing posture with the hands and fingers easily, with at least these five functions (hereinafter abbreviated as five functions) Become.

However, in the case of the prior art described above, since the two ring-shaped objects of the finger attachment member and the writing instrument holding member are connected by a pin, the pen is rotated around the pin, thereby being parallel to the index finger. The five functions described above, such as the writing instrument and the index finger are rotated as they are, the inclination of the writing instrument and the index finger and the triangular space are difficult to form, and the tip of the writing instrument can only be forcibly pulled under the index finger. Is not complete. And in the method of providing a magnet in the fixed part, if the writing instrument to be held is a non-metallic material such as a pencil or a ballpoint pen, it is necessary to attach a sucked body such as metal to the writing instrument one by one. There was a problem.

The present invention is a writing instrument finger holder and a finger wearing writing instrument that technically solves the above five functions, wherein the writing instrument is mounted on the thumb side of the index finger and used while alternately switching the holding posture and the writing posture. It is an issue to provide.

Hereinafter, main means for solving the problems of the present invention will be described.
Since human fingers and writing instruments basically have a round bar shape, it is natural that both the finger attachment member and the writing instrument clamping member naturally form an annular shape. However, if these two ring shapes are connected in parallel as they are, even if it is a patty shape, the position of the connecting portion will be the center of the extension of both ring shapes, and the movement of both ring shapes will be linked It is extremely difficult to provide means for providing the above five functions only by rotating the angle freely around a point.

Therefore, the present invention does not first connect the two annular bodies as they are, but the finger mounting member is provided with an extending member obtained by extending the wall surface on the thumb side toward the wrist, and the writing instrument holding member is provided with the writing instrument receiving member. In this way, the position of the connecting portion is extended to the vicinity of the root joint of the index finger, and further, a connecting portion is provided in which the connecting portions of the connecting portions are protruded under the ring-shaped body instead of the center portions of the two ring-shaped bodies. As a result, the movement of the writing instrument and the finger mounting part is not a rotation around a single point, but a fan-shaped rotation with the connecting point as a fulcrum, and a natural triangular space is created between the writing instrument and the index finger. Based on the rotation, the writing tool can be moved forward and backward, and the expansion and contraction function uses the effects of sliding using the change in weight and angle, the elasticity of elastic objects such as springs, pulling and stretching by the telescopic arm, interlocking with the gear, etc. The stability function uses a locking action by a specific locking member such as a hemispherical or triangular member, or an elastic action by an elastic material such as a spring, and a slope is formed on the contact surface of the finger mounting part and the writing instrument holding part. By providing various means according to the type and kind of writing instrument, such as providing a linear, curved or arc-shaped inclination, it is possible to provide the five functions described above.
In the case of a finger-worn writing instrument, the configuration of the finger mounting part and the connecting part is basically the same as that of the writing tool finger holder described above, the writing tool pinching member of the writing tool finger wearing tool is eliminated, and the writing tool is used as a consignment unit from the design stage. It integrates and it connects with a finger | toe mounting member via a connection member. In addition, functions unique to finger-fitted writing instruments are added.
The present invention is formed by the above-described means and exhibits the following effects.

The effects of the present invention can be said to be the respective five functional features described above. Convenience that allows the writing instrument to be held on the thumb side of the index finger closest to the writing posture, and the writing posture and holding posture of the writing implement can be instantly switched only by the movement of the thumb, and in the holding posture the tip of the writing instrument is more than the tip of the fingertip Since it is located behind and stable, many tasks such as inputting a keyboard, grasping with a hand, lifting, etc. can be done smoothly, and the writing instrument length, angle, inclination, triangular space, etc. are the most ideal in writing system A simple shape is formed, and just by bringing the middle finger, index finger, and three thumbs to the writing instrument, it becomes a natural and correct way to grip the writing instrument, so it is not only convenient for ordinary people, Effective as a children's writing practice tool and corrective tool, and the hands and fingers are extremely easy, and the posture of the writing tool does not collapse even when the finger is released, so writing assistance for people with weak grip and people with disabilities Also used as a tool Combed.
And by providing the part of the connecting part under the writing instrument, it seems that the structure of the two ring-like bodies is more complicated than simply connecting with a pin, but in fact, in the palm of the writing posture originally, There is usually enough space to hold a small egg, and the writing instrument is often thinner than the index finger, and even if the connecting part protrudes under the writing instrument, it does not protrude below the palm of your hand, but from the side. However, if the thickness of the writing instrument is not exceeded, writing and other work will hardly be disturbed. Conversely, it is possible to hold the writing instrument in close contact with the index finger, and the area where the writing instrument and the finger mounting part come in contact is widened, so that the posture stability of the writing instrument can be secured and the posture switching operation of the writing instrument is convenient. It was easy to provide means to realize the five functions described above, such as improving the height, forming the inclination, and forming a triangular space, and produced many advantages such as enabling the operation of only buttons without touching the writing instrument.
In the case of a finger-worn writing instrument, a wide range of designs can be made from the design stage, such as having the above five functions, making the writing instrument more compact, and diversifying the outer shape to your liking. In addition, it has made it possible to realize functions unique to finger-equipped writing instruments, such as the automatic advance / retreat function of writing instruments and the storage of both the nib and shaft in the cap.

It is the side view which showed the angle and triangular space of the writing instrument of the writing posture. It is the front view which showed the inclination of the writing instrument of a writing posture. It is the side view which showed the position of the writing instrument of a holding posture It is a perspective view of the writing instrument finger holder of Example 1. 3 is an exploded view of the writing instrument finger holder of Example 1. FIG. It is a rear surface partial sectional view of the writing instrument finger holder of Example 1. It is a rear surface partial cross-section enlarged view of the writing instrument finger holder of Example 1. FIG. 6 is a perspective view showing a clamping member of Example 2. It is the rear surface partial cross-section enlarged view of Example 2. FIG. 6 is an enlarged partial cross-sectional view of a rear surface of a connection part of Example 3. FIG. 10 is a partial rear cross-sectional view of Example 4. FIG. 9 is an enlarged partial cross-sectional view of a rear surface of a connection part of Example 4. It is the perspective view which showed the expansion-contraction arm of Example 5. FIG. It is the elements on larger scale which showed the expansion-contraction arm of Example 5. FIG. It is a connection part rear surface partial cross-section enlarged view of Example 6. FIG. It is the fragmentary sectional view which showed the connection part in the holding posture of Example 6. It is the fragmentary sectional view which showed the movement of the connection part at the time of switching to the writing posture of Example 6. FIG. It is the fragmentary sectional view which showed the connection part of the writing posture of Example 6. FIG. It is a rear surface fragmentary sectional view of Example 7. 10 is a side partial cross-sectional view showing the structure of Example 8. FIG. FIG. 10 is a partial cross-sectional enlarged view showing the structure of Example 8. It is a rear surface partial cross-section enlarged view of Example 8. It is a side surface fragmentary sectional view of the holding posture of Example 9. It is a side surface fragmentary sectional view in the state where only the brush core of Example 9 was projected. It is a side surface fragmentary sectional view of the writing posture of Example 9.

First, the writing instrument finger holder will be described.
The writing instrument finger holder is largely composed of three parts, a finger mounting part, a writing tool holding part, and a connecting part. Of these, the finger mounting part is composed of a finger mounting member 7, a stretching member 8, and a connecting member 9. Of these, the finger attachment member 7 is attached between the second joint 4 of the index finger and the root joint 5 and is attached to the finger using a material having a certain hardness and flexibility such as metal or synthetic resin. As long as a certain level of stability can be ensured, the shape and means can be varied. Various shapes such as a belt shape, ring shape, ring shape, chain shape, and grip type are possible as well as a wristwatch belt to be attached to the arm. However, regardless of the material and shape of the mounting member, the surface in contact with the writing instrument holder on the thumb side is preferably hard and flat.
The extending member 8 is formed by extending the rigid planar shape of the finger mounting member 7 in the direction of the wrist, and the connecting member 9 is provided at the lower end portion of the extending member 8. The extending member 8 can also be an insertion type that can be easily detached from or attached to the finger mounting member 7 or the connecting member 9. The length and shape of the extending member 8 and the connecting member 9 vary depending on the type and type of the writing instrument finger holder and the finger wearing writing instrument.

The writing instrument holding unit includes a writing instrument clamping member 11 for holding the writing instrument, a receiving member 12 for allowing the holding member 11 to slide back and forth in a stable state, and a connecting member 13 provided below the receiving member 12. Among them, the holding member 11 is a cylindrical type that holds a writing instrument of the same thickness in the front and rear like a pencil with a fixed diameter and can be fixed, and existing writing instruments of various shapes and thicknesses It can be divided into two types: an open-type that makes it possible to hold. In addition, the receiving member 12 is provided in such a manner that the holding member 11 holding the writing instrument is slidable back and forth in a stable state in accordance with the shape and type of the holding member, and the finger mounting portion is connected to the lower side of the receiving member 12. A connecting member 13 of the writing instrument holding part for connecting with the member 9 is provided. The shape and length of the holding member 11 and the receiving member 12 vary depending on the type and type of the writing instrument finger holder and the finger wearing writing instrument.

The connecting part is configured by combining the connecting member 9 of the finger mounting part described above and the connecting member 13 of the writing instrument holding part and both connecting members as an important configuration of the present invention. In either case, the writing instrument is provided below the trust member 12 when held in parallel with the index finger. And the inclination 56 is provided in the surface which both a finger | toe mounting part and a writing implement holding part contact, such as the extending | stretching member 8, the writing instrument clamping member 11, the receiving member 12, and the connection member 13, but both inclination 56 contacts. Either a linear inclination is provided on the entire surface, or an arc-shaped inclination is provided on the entire surface, or the extending member 8 is a linear plane, and the connecting members 9 and 13 are obliquely bent from the linear plane of the extending member 8. In any case, the tip of the writing instrument is positioned under the index finger when the writing instrument is rotated.

And the spring, arm, dovetail depending on the type and type within the contact surface of both the finger mounting part and the writing instrument holding part around the screw hole 27 of the connecting members 9 and 13 and the fan-shaped movement range of the writing instrument By providing various means such as a protrusion and a tooth ring, the above five functions are realized.

Next, the finger wearing writing instrument will be described.
The finger wearing writing tool is largely formed from three parts, a finger wearing part, a writing tool and a connecting part, and the finger attaching part and the connecting part are the same as the finger attaching part and the connecting part of the writing tool finger attaching tool described above. In the case of a finger wearing writing instrument, the writing instrument is directly connected to the connecting member instead of the writing instrument holder. That is, the holding member 11 and the cylindrical body 18 provided in the writing holding unit are eliminated, and the writing tool main body and the receiving member 12 or the holding ring 19 are integrated as a finger wearing writing tool from the design stage. The main body can move back and forth, slide or extend on the connecting portion 13.
And the appearance shape, size, design, etc. of the writing instrument itself can be made into various shapes and sizes, and the switching operation unique to the finger wearing writing instrument can be made more interesting, or the tip of the writing instrument in the holding position can be hidden. Add new functions such as

The present invention is carried out in the above-described form, and several embodiments of the present invention will be described below in detail with reference to the drawings. In addition, in order to make it easy to understand, Examples 1 to 6 give examples of writing tool finger wearing tools, and Example 7 uses Examples of writing tool finger wearing tools of Examples 1 to 6 as writing tools for finger wearing. Only the parts different from the writing instrument finger wearing tool will be described. Examples 8 and 9 give examples unique to finger-fitting writing instruments. In the means for realizing the five functions of the present invention, both the writing instrument finger holder and the finger wearing writing instrument are not limited to those in the following embodiments. In addition, as for the standard of the angle between the writing instrument with the correct writing posture and the paper surface, there is no clear standard or rule, and there is no authoritative theory, so here, for convenience of explanation of the invention, it is 50 to 60 degrees. Is assumed to be the optimum angle range.

4, 5, 6, and 7 are a perspective view, an exploded view, a rear partial cross-sectional view, and a partial enlarged view of the cross-section, respectively, of the finger holder of the first embodiment.
The finger attachment part includes a finger attachment member 7 attached to the index finger, an extension member 8 obtained by extending the wall surface on the thumb side of the finger attachment member 7 toward the wrist, and a connecting member 9 provided at the lower end of the extension member 8. Among them, the finger mounting member 7 forms a ring shape like a ring mounted between the second joint 4 of the index finger and the root joint 5, and a split port 14 is provided in the ring shape, Adjustable according to the thickness, the wall surface on the thumb side when the mounting member 7 is mounted on the index finger has a substantially flat surface, and the locking member 6 is provided at the most distal portion near the second joint 4 on the substantially flat surface. . The locking member 6 forms an arc shape in which an intermediate portion is slightly recessed, and a projection or the like for preventing the writing instrument from sliding is provided on the arc-shaped surface. The extending member 8 is provided by extending the rear wall surface of the locking member 6 toward the tail, and the extending member 8 simply removes or attaches the finger mounting member 7 and the connecting member 9 provided therebelow. The insertion port 10 that can be inserted is provided. Although the state when separated differs depending on the position where the insertion port 10 is provided, when the insertion port 10 is provided immediately after the locking member 6 as in this embodiment, the index finger is removed when the extending member 8 is removed. Will only appear to wear a ring. A connecting member 9 is provided at the lower end portion of the extending member 8 per root joint 5 of the index finger.

The connecting member 9 is provided with an inclination 56 in which the angle of the thumb side surface is slightly inclined with respect to the angle of the wall surface of the extending member 8, and the screw hole 27 is arranged at the center of the connecting portion. The surface is provided with a hemispherical concave portion 15 for stabilizing the position of the writing instrument. The hemispherical concave portion 15 is provided at two left and right sides of the screw hole 27 in parallel with the writing instrument, and the writing instrument is approximately 55 degrees counterclockwise. Are provided at a total of four locations on both sides of the screw hole 27.

The writing instrument holding unit holds the cylindrical body 18 (corresponding to a clamping member) for subdividing and inserting the writing instrument, the hand grip section 25 for fixing and gripping the inserted writing instrument, and the cylindrical body 18. Then, a sandwiching ring 19 for sliding back and forth (corresponding to a receiving part in the case of an opening-shaped sandwiching member) and a connecting member 13 provided under the sandwiching ring 19 are formed. The rear end is an opening, and the inner side of the opening is provided with an elastic member for stabilizing the writing instrument, and the outer edge of the rear end is provided with a protrusion 21 for preventing the holding ring 19 from falling off. The distal end portion of the cylindrical body 18 is provided with a plurality of screw portions 22 on the side, and a plurality of lateral notches 24 are provided in the portion where the screw portions 22 are provided, whereby the screw portions 22 can be tightened. The grip portion 25 is provided with a screw having a small diameter so that the screw portion 22 is tightened as it goes in the tip direction so that the screw portion 22 at the tip of the cylindrical body 18 can be contracted and fixed on the back side. Are provided with protrusions that engage with the locking member 6 and are easily locked.

The connecting member 13 of the writing instrument holding part has a wall surface at one end and an opening at the other end, a hollow cylindrical body is attached below the holding ring 19, and the side provided with the wall surface is connected to the connecting member 9 of the finger attachment part. With the opening facing the thumb side. The surface in contact with the connecting member 9 forms the same oblique inclination 56 as that of the connecting member 9, the screw hole 27 is provided in the center of the wall surface, and the hemispherical shape provided in the connecting member 9 around the screw hole 27. A hemispherical protrusion 16 is provided for fitting into the recess 15, but the connecting member 9 of the finger mounting portion is provided with four hemispherical recesses 15. 16 may be provided in parallel with the writing instrument at two places on both the left and right sides of the screw hole 27. Then, the bolt 60 is drilled in the hollow shape of the connecting member 13, and the small coil spring 20 is provided outside the bolt 60 and fixed with a nut, so that the writing instrument is always fingered by the elastic pressure of the small coil spring 20. The mounting portion is biased toward the connection member 9 side. Finally, the cover 26 covers the entire surface of the connecting portion.

This embodiment is formed as described above, and when this is used, after adjusting the finger mounting member 7 to the thickness of the finger, the extending member 8 is directed from the side of the index finger toward the wrist, and the index finger A writing instrument, which is mounted between the second joint 4 and the root joint 5 and is thinner than the oral cavity of the cylindrical body 18 and has the same thickness, such as a pencil or a ballpoint pen, is inserted into the cylindrical body 18 and the writing instrument is written. The length of the writing instrument when the holding ring 19 of the writing instrument can be slid to the end of the cylindrical body 18 is adjusted to the required length of the writing posture. When the hand grip portion 25 is placed at the same position as the locking member 6 when it can be slid, and the hand grip portion 25 is rotated to fix the writing instrument, the setting is completed. When the hand grip portion 25 of the writing instrument is locked to the locking member 6 and held parallel to the index finger, the holding posture is obtained.

In this holding posture, the hemispherical protrusion 16 for position stabilization and the hemispherical recess 15 of the connecting members 9 and 13 are fitted, and the writing instrument does not move up and down, and the writing instrument does not move between the holding ring 19 and the locking member 6. Due to the locking action, the writing tool is firmly attached to the side of the index finger with the tip of the writing finger positioned behind the index finger due to the angle difference effect of the inclination provided on the connecting member 9 and the extending member 8 Since the holding posture is stable, it is possible to perform other operations without inconvenience such as inputting a keyboard by bending a finger and grasping a hand.

The hemispherical protrusion 16 provided on the connecting member 13 is provided with a hemispherical protrusion 16 on the connecting member 9 of the finger mounting member and a hemispherical recess 15 on the writing instrument connecting member 13, contrary to the above method. However, the same effect can be obtained. The hemisphere can be formed into another shape such as a triangle, and the shape and size of the hemisphere can be adjusted according to the elasticity of the small coil spring 20 provided on the writing instrument connecting member. Try to balance ease.

When switching to the writing posture, the thumb 2 is raised and the writing instrument is pushed down from the side upper surface of the index finger. Then, the locking member 6 is detached while the writing instrument body rotates in the holding ring 19, and fan-shaped rotation is started with the screw hole 27 of the connecting member 9 as a fulcrum. At the same time, the hemispherical protrusion 16 provided on the connecting member 13 escapes from the hemispherical recess 15 provided on the connecting member 9 while resisting the elasticity of the small coil spring 20, and an angle of about 55 degrees of its rotation destination. It fits into the recess provided in the, and stays at the required writing posture angle. On the other hand, at the same time as the writing instrument is rotated, the cylindrical body 18 is slid toward the tip of the holding ring 19 due to its own weight and elastic vibration when the writing instrument is inserted into the recess, so that the writing instrument is It protrudes to the end. The tip of the writing instrument is naturally placed obliquely in the direction below the index finger due to the inclination 56 provided in the connecting portion, and an optimum writing posture is obtained.

In this posture, the thumb 2, the index finger 1 and the middle finger 3 are brought close to the writing instrument and lightly grasped, and the posture with all the good writing posture conditions such as the length, angle and position, inclination, and triangular space of the writing instrument described above are provided. Therefore, the writing posture is naturally correct and easy, and the posture does not collapse even if the finger is released. Furthermore, since the finger attachment member 7, the inclination 56 for fixing the writing instrument, the hemispherical protrusion 16 and the like have elasticity and the length of the writing instrument is due to the sliding of the holding ring 19, the posture is stable. Because it is not fixed firmly and flexible, even a person who originally had a poor writing posture can gradually adapt to the correct posture without feeling strong resistance.

When switching the writing posture to the holding posture again, first, as the preparation posture, when the index finger 1 and the middle finger 3 holding the writing tool in the writing posture are pulled lightly while bending as they are, the holding ring 19 slides behind the cylindrical body 18. The front part of the writing instrument is shortened. Then, the writing instrument is pushed up with the thumb 2 and rotated to the writing posture. Then, when switching to the writing posture, the hemispherical protrusion 16 fitted in the hemispherical recess 15 at the 55-degree position of the connecting member by the opposite movement is moved to the parallel recess at the rotation destination and parallel to the index finger. Thus, the grip portion 25 is locked to the locking member 6 and is in a stable holding posture.

Although this embodiment is not suitable for a writing instrument that is thicker than the diameter of the cylindrical body 18, it has the five functions described above in spite of its very simple structure. Because you can play while holding the writing utensils and bending, stretching, and turning them, you can use them as special items such as pencils and stick-shaped ballpoint pens, as well as teaching tools and exercises for holding elementary school children and children's writing utensils. Suitable as a tool or a corrector.

8 and 9 are a perspective view and a rear partial sectional view, respectively, showing the clamping member of the second embodiment.
In this embodiment, in order to be able to hold more various types of writing tools, the writing tool holding member 11 is an opening instead of the cylindrical body 18 of the first embodiment, and is made of an elastic material. The thumb side of the sandwiching member is formed into two semicircular nails 35 on the front and back, and the surface in contact with the finger mounting member forms a substantially flat surface that matches the shape of the extending member 8 as much as possible. And the acceptance member 12 is provided in the bottom face of the clamping member 11, and the clamping member 11 is fitted on the acceptance member 12 so that sliding back and forth is possible on the dovetail groove 32. A connecting member 13 is provided under the commission member 12.

In order to make the locking member 6 provided on the finger mounting member 7 easily correspond to the hand grip portion of the writing tool of various shapes and thickness to be sandwiched, an elastic locking member is provided. Other parts including the structure of the other finger mounting part and the connecting part are the same as those in the first embodiment.

When using this embodiment, if the writing implement is inserted into the two semicircular claws 35 of the holding member 11 and set in accordance with the required length of the writing posture, the cylindrical body 18 of the first embodiment is used. However, instead of sliding in the clamping ring 19, the clamping member 11 slides back and forth on the trust member 12. And since the locking member is given elasticity so that the writing instrument in the holding posture does not move back and forth, the same stability effect as in the first embodiment can be obtained.

Compared with Example 1 in which a specific writing instrument such as a pencil or a ballpoint pen of the same thickness is easily inserted, this example has two elastic semi-circular nails 35 provided at the front and back, and a variety of pens that are regularly used. Because it can be used with existing writing instruments that are shaped, it is highly versatile.

FIG. 10 is an enlarged partial rear cross-sectional view showing the connecting portion of this embodiment.
This embodiment eliminates the hemispherical or triangular protrusions and recesses provided on the contact surfaces of the connecting member 9 of the finger mounting portion and the connecting member 13 of the writing instrument holding portion of the first and second embodiments. Instead, a plurality of small triangular teeth 23 having the same shape are provided on the disk-shaped surfaces in contact with the connecting member 9 and the connecting member 13 so as to alternately mesh with each other radially around the screw holes 27. The rotation angle of the writing instrument is limited so that it does not go too far with the cover 26 that covers the connecting portion, and the rest is the same as in the first embodiment or the second embodiment.

Thereby, when the writing posture and the holding posture are alternately switched, the connecting member 9 is fixed. Therefore, only the triangular projecting teeth 23 provided on the connecting member 13 resist the elasticity of the small coil spring 20 and It is rubbed with the provided triangular tooth 23 and rotates while producing a rattling sound. You can switch slowly at your own pace according to your preference.

11 and 12 are a partial cross-sectional view of the rear surface of the fourth embodiment and an enlarged view of a connecting portion thereof. In this embodiment, the operation for switching the holding posture to the writing posture is not required, and it is not necessary to move the writing tool directly with a finger, and the operation can be switched to the writing posture by simply pressing the button 45 projecting at the center of the connecting portion. It is simple.

Specifically, the structure of the connecting portion composed of the connecting member 9 and the connecting member 13 is first received, and the shape of the connecting member 13 is first received in the same manner as in the first embodiment or the second embodiment. One end of the cylindrical shape is continuously open below the portion 12, the small coil spring 20 is provided in the inside, a wall surface is provided at the other end, and a screw hole 27 is provided at the center of the wall surface. However, in the first and second embodiments, the side where the screw hole 27 is provided is brought into contact with the connecting member 9 and the side of the opening is on the thumb side. The connecting member 13 is always urged to the thumb side by contacting the connecting member 9 with the connecting member 9 and rotating the wall surface side toward the thumb so as to be rotatable with a bolt 60. The wall surface provided with the screw hole 27 is provided with unidirectional teeth 61 that can rotate only in one direction, instead of the hemispherical protrusion 16 and the hemispherical recess 15 provided in the first and second embodiments.

Next, the connecting member 9 of the finger mounting member 7 is formed by firstly connecting the writing instrument connecting member 13 with the cylindrical writing instrument connecting member 13 connected to the surface of the writing instrument connecting member 13 around the screw hole 27 at least below the receiving member 12. A columnar protrusion 21 having the same size as the outer diameter is provided, and a torsion spring 30 is provided on the outer periphery of the protrusion 21. One end of the torsion spring 30 is hooked to the writing instrument connecting member 13 and the other end is hooked to the connecting member 9. The connecting member 13 is always urged to the writing posture angle.

Furthermore, the circular wall surface of the edge of the connecting member 9 is extended to the thumb side, the wall surface that contacts the thumb side of the writing instrument connecting member 13 is provided on the thumb side, the screw hole 27 is provided in the center of the wall surface, On the inner wall surface of the screw hole 27, a locking tooth 29 that engages with the one-way tooth 61 provided on the wall surface of the writing instrument connecting member 13 is provided. A button 45 is provided in the center between the wall surface provided with the one-way tooth 61 on the thumb side and the wall surface provided with the locking tooth 29, and one end of the button 45 is in contact with the connecting member 13, One end is exposed from the central hole of the connecting member 9 and the cover 26 to the thumb side. The rest is the same as in Example 1.

When using this embodiment, when switching from the holding position to the writing position, when the button 45 exposed from the hole of the cover 26 of the writing instrument is lightly pressed with the thumb, the wall surface of the connecting member 13 is pressed by the button 45, While resisting the elasticity of the small coil spring 20, it is slid toward the connecting portion 9, the one-way tooth 61 and the locking tooth 29 are separated, and the writing instrument is rotated toward the writing posture by the biasing force of the torsion spring 30. When the angle is rotated to the writing posture angle, the elasticity of the torsion spring 30 is weakened, and the edge is brought into contact with the wall surface of the cover 26 and stopped. When it is desired to return to the holding posture, when the writing instrument is pushed up from below with the thumb, the one-way teeth 61 and the locking teeth 29 stay in mesh with each other when the angle reaches parallel to the required index finger.
In the structure described above, the writing instrument holding portion has been described for the second embodiment. However, when the writing instrument holding member 11 is the first embodiment, the connecting member 13 may be provided under the holding ring 19.

13 and 14 are a side view and a partially enlarged view showing the structure of the telescopic arm of the fifth embodiment, respectively.
In the present embodiment, the locking member 6 provided on the thumb side of the finger mounting member 7 in the first and second embodiments is eliminated, and the extendable arm 31 is provided behind the connecting members 9 and 13. The writing instrument is automatically advanced and retracted when the writing posture and the holding posture are alternately switched by the expansion and contraction and pulling action.

The telescopic arm 31 has a plurality of arms of the same length connected to each other so as to be telescopic at a certain angle. Among the two sides of the telescopic arm 31, one of the two crossed ends is one end. The joint 57 is connected to the outside of the connecting member 13 of the writing instrument holding part, and the other end 58 is rotatably connected to the outside of the connecting member 9 of the lower finger mounting part within a certain angle. The other end has one intersection end and is joined to the holding member of the writing instrument holding unit. When the holding member is a cylindrical body, the holding member is connected to the end of the cylindrical body 18. When is open, it is jointed to the rear end of the clamping member 11. In addition, when joining to the rear-end part of the clamping member 11, it is necessary to provide the cut as a path where the expansion-contraction arm 31 can move back and forth in the dovetail groove 32 of the receiving member 12. FIG. 13 and FIG. 14 show the case where the clamping member is open.

When using this embodiment, by providing the telescopic arm 31, in the holding posture, the adjacent distance between the arm ends 57 and 58 on the side close to the connecting portion is close, so the cross-connected telescopic arm 31 is extended, The writing instrument will be pulled back toward the tail. Then, when switching to the writing posture, the arm end 57 provided in the outer week of the connecting member 13 is rotated according to the rotation of the writing instrument, and the distance from the arm end 58 provided in the outer week of the connecting member 9 is increased. Thereby, the telescopic arm 31 is contracted, and the writing instrument is pulled forward to advance to the required length of the writing posture. That is, the writing instrument automatically advances and retreats to a required position by the attitude switching operation. Therefore, the shape of the cover 26 is also a shape that can secure a space in which the extendable arm 31 can freely expand and contract. The rest is the same as in Example 1 or Example 2 above.

FIGS. 15 and 16a, 16b, and 16c show the movement of the structure of the connecting portion of this embodiment in three stages. In this embodiment, first, the connecting member 13 of the writing instrument holding portion is connected in parallel with two left and right sides of the lower part of the receiving member 12 with two semicircular gears 43 having the same shape and having a screw hole 27 in the center. The teeth provided on the edge of the gear 43 are rotated in a direction in which the guard member is in contact with the acute angle side by forming a straight angle with the axis of the tooth and forming an acute angle with the other side. The guard member rotates while rubbing against the acute side, but if it tries to rotate while contacting the side that forms a straight line with the shaft center, the linear teeth are locked by the locking member and cannot rotate. A one-way tooth 37 that cannot be reversed is provided, and a gap is provided between the two gears 43, and a rotation assisting piece 38 is provided in the gap. The rotation assisting piece 38 has a shape obtained by cutting off both sides of a circle as shown by a chain line in FIG. 16, and its outer diameter slightly protrudes from the gear 43 by making its diameter one size larger than that of the gear 43. Then, a horizontal shaft 39 is installed between the two gears 43, and the rotation range and timing of the rotation assisting piece 38 are limited by the contact pressing action of the horizontal shaft 39.

On the other hand, the connecting member 9 of the finger mounting portion is provided with a columnar protruding portion 21 that is slightly larger than the diameter opening of the gear 43 on the surface of the connecting member 13 that contacts the gear 43, and a torsion spring 30 is provided there. Both ends of the spring 30 are hooked on the finger mounting part and the writing tool holding part, respectively, and the writing tool is always biased to the writing posture by the elasticity of the torsion spring 30. Further, the outer wall surface of the connecting portion 9 extends to the thumb side, and is hollow so as to be wrapped from the outside so as not to interfere with the rotation of the two gears 43 and the rotation assisting piece 38 sandwiched between them. A semicircular bag shape is formed, and a bolt 60 is skewered at the center so that the entire connecting portion can be rotated with the bolt 60 as a center. And, between both wall surfaces of the finger mounting member 9 extending to the index finger side and the thumb side, the guard member 40 is installed in contact with the one-way teeth 37 provided on the edges of the two gears 43, The guard member 40 is urged toward the one-way teeth 37 by the elastic force of the torsion spring 41 so that the gear 43 cannot be reversed.

This embodiment is formed as described above, and when this is used, the writing instrument is pushed up from below with the thumb as in the other embodiments when the writing instrument in the writing posture is switched to the holding posture. Then, the guard member 40 is slid on the one-way teeth 37 and rotates while making a rattling sound. When the writing instrument is parallel to the index finger, the horizontal shaft 39 is brought into contact with the rotation assisting piece 38 below. At the same time, the guard member 40 is brought into contact with the upper portion of the rotation assisting piece 38 and temporarily stays in a holding posture. In this state, the writing instrument tries to return to the writing posture by the elasticity of the torsion spring 41, but the one-way teeth 37 are hooked on the guard member 40 and maintain a stable holding posture.

Then, when the holding posture is switched to the writing posture, the writing instrument is slightly lifted upward from the bottom with the thumb again and released. Then, the gear 43 and the rotational assisting piece 38 are simultaneously rotated by the pressing action of the horizontal shaft 39 that is in contact with the rotational assisting piece 38 below. Then, since the diameter opening of the horizontal shaft 39 is slightly larger than the gear 43, the guard member 40 is mounted on the rotation assisting piece 38, stops rotating, and only the gear 43 is detached from the guard member 40 and twisted. Due to the elasticity of the spring 41, the angle is returned to the writing position. Then, when the writing posture angle is reached, the horizontal shaft 39 is now brought into contact with the rotation assisting piece 38, presses the rotation assisting piece 38, and rotates together with the gear 43, thereby protecting the guard. The member 40 slides down on the one-way tooth 37 from the rotation assisting piece 38 and returns to the original state. By repeating such operations, the writing posture and the holding posture are switched. Other parts other than the connecting portion can be the same as any one of the first embodiment, the second embodiment, and the third embodiment. In addition, when making it the same as Example 1 or Example 2, since a locking member is unnecessary, it is eliminated.

In this embodiment, the operation of switching the holding posture to the writing posture is different from the operation of switching the writing posture of the holding posture to the writing posture, and the operation of switching the holding posture to the writing posture, unlike the movement of raising the writing tool from the upper side to the lower side. In both cases, the posture switching operation is further simplified and the convenience is improved so that it is only necessary to repeat the movement of pushing and releasing the writing instrument from below with the thumb.

FIG. 17 is a partial end view of the rear surface of this embodiment. In Examples 1 to 6 described above, the structure in the case of a writing instrument finger holder has been described. However, in this example, the above-described six examples are used as a writing instrument for finger wearing. Only the structure different from the writing instrument finger holder will be described.

The finger wearing writing tool is roughly composed of a finger wearing part, a connecting part, and a writing tool. Of these, the finger attaching part and the connecting part are basically the same as the writing tool finger holder and can have a common structure. The difference is that in the case of a writing instrument, the writing instrument holding part is not necessary, and it is only necessary to directly connect the writing instrument to the finger attachment through the connecting part. More specifically, the writing instrument holding member 11 or the cylindrical body 18 provided in the writing instrument holding portion is eliminated from the structures of the first to sixth embodiments, and the writing instrument body is instead designed from the design stage. The dedicated member in which the receiving member 12 or the holding ring 19 is integrated with the writing instrument main body, the writing instrument main body can be expanded or contracted, and the connecting member 13 is provided under the main body, and the connecting member 13 and the connecting member 9 are combined. The writing instrument for finger wearing.
For that purpose, the writing instrument cap is slightly lengthened, the rear part of the writing instrument shaft is housed in the cap, the writing instrument shaft main body can be moved back and forth or slid in the cap, and the lower part of the cap is directly connected Connect to 13. Based on this, the end face shape of writing instruments unique to writing instruments is made not only circular, but also various shapes such as squares, triangles, ellipses, rhombuses, and the size is made as compact as possible.

Other than that, the structure of the finger mounting portion and the connecting portion is the same as that of any of the first to sixth embodiments described above, and according to the specific structure of the embodiment, it is appropriate if necessary. Adjustments to be made may be made. For example, when the structure of the finger mounting portion and the connecting portion is the same as in the first embodiment or the second embodiment, a locking member is provided according to the shape of the grip portion 25 in front of the writing instrument shaft. In the same manner as in Example 5, the side with one end portion of the telescopic arm 31 is directly connected to the rear end portion of the shaft of the writing instrument so as to be freely rotatable, and the telescopic arm 31 can be moved forward and backward. A cut end may be provided below the cap 53. In FIG. 17, an elastic member 44 is provided instead of the spring of the connecting member 13.

18, 19 and 20 are a partial side sectional view showing the structure of this embodiment, an enlarged view thereof, and a partial rear sectional view thereof.
This embodiment is a writing instrument having members such as a ballpoint pen, a pendulum core, a shaft, a cap, etc., among the writing tools for wearing a finger. By providing the gear 34 in the cap 53, the writing tip 55 and the shaft body in the holding posture. 28 is housed in the cap 53, prevents ink stains, has a shape that is convenient for carrying, and automatically switches the writing instrument when switched to a writing posture, and further implements the connecting portion described above. By being combined with the connecting portion of Example 6, it is a writing instrument for wearing a finger that is excellent in the convenience of the posture switching operation.

Specifically, the connecting member 13 is first provided directly under the cap 53 of the writing instrument. The structure of the connecting member 13 is basically the same as that of the sixth embodiment. That is, two identically shaped semicircular gears 43 provided with screw holes 27 are connected in parallel under the cap 53, and unidirectional teeth 37 are provided on the edges of the gear 43. A gap is provided between the two gears 43, the rotation assisting piece 38 is disposed in the gap, and a horizontal shaft 39 is installed between the two gears 43. The rotation of the auxiliary piece 38 is limited.

On the other hand, the connecting member 9 of the finger mounting portion is provided with a columnar protruding portion 21 that is slightly larger than the diameter opening of the gear 43 on the surface that contacts the gear 43 of the connecting member 13, and a torsion spring 30 is provided there. The writing instrument is always biased to the writing posture by the elasticity of the spring 30. Furthermore, the outer wall surface of the connecting member 9 is extended to the thumb side, the two gears 43 and the rotation assisting piece 38 sandwiched between the two gears 43 are formed from the outside to form a bag shape, and the bolt 60 is skewered. Thus, the entire connecting portion is rotatable about the bolt 60 as a center, and the guard member 40 is disposed between the wall surfaces of the finger mounting member 9 extending to the index finger side and the thumb side of the two gears 43. The guard member 40 is urged against the one-way teeth 37 by the elastic force of the torsion spring 41 so that the gear 43 cannot be reversed.

The structure of the connecting portion up to the above is basically the same as that of the sixth embodiment. However, the difference between the sixth embodiment and the sixth embodiment is that the connecting member 13 is provided under the receiving member 12. The connecting member 13 is directly provided on the cap 53. In this embodiment, the wall surface extending to the thumb side of the connecting member 9 of the finger mounting portion is further extended to the side surface of the writing instrument while being curved in accordance with the shape of the writing instrument, and the screw hole 27 on the wall surface is provided. 18 is formed in a substantially sector shape as shown in FIG. 18, and a fixed protrusion 33 is provided on the arc-shaped extension of the substantially sector shape.

On the other hand, the shaft body 28 housed in the cap 53 has a tooth plate 36 protruding from the upper side on the thumb side, and teeth are provided on the back surface of the tooth plate 36. In other words, a rack in which teeth are provided on the lower surface. Are connected to the upper surface of the shaft body 28, and a gear 34 composed of two large and small flat teeth (a gear like a pinion and a super gear) is provided on the same axis. And the super gear meshes with the tooth plate 36. Then, the intermediate wall 17 is provided in the cap 53 between the shaft body 28 and the gear 34, and the gear 34 is pivotally attached. And the linear inclination 56 is provided in the whole surface where the writing instrument containing a connection part and a finger mounting part contact.

This embodiment is formed as described above, and when this is used, the small tooth pinion of the gear 34 is connected to the connecting member by switching to a writing posture by rotating the writing tool in the same manner as in the sixth embodiment. The rack of the tooth plate 36 meshed with the super gear moves forward together by being meshed and rotated with the fixed protrusions 33 provided on the outer extension of the substantially fan-shaped wall surface in which 9 is extended to the thumb side. As a result, the writing instrument shaft 28 protrudes from the cap 53.
When the writing posture is switched to the holding posture, when the writing implement is pushed up from below with the thumb, the gear 34 rotates in the opposite direction to pull the writing implement so that the contents of the writing implement are pulled. The writing instrument is shortened.

In this embodiment, the writing instrument in the holding position is not only shortened in length and is positioned behind the index finger, but also the other end of the writing instrument is accommodated in the outer shell to perform other work. It is a writing instrument for easy finger attachment. Each standard of the fixed projecting tooth 33, the gear 34, and the tooth plate 36 may be designed in accordance with a required writing attitude angle, a writing instrument length, and the like.

FIG. 21a, FIG. 21b, and FIG. 21c show the movement of the writing instrument until the writing instrument in the holding state of Example 9 is switched to the writing state in three stages.
The present embodiment is a case of a writing instrument having a brush core such as a ballpoint pen, a shaft body, a cap, etc., among the writing tools for wearing a finger, and the writing tip 55 is placed in the shaft body 28 in a holding posture, and the shaft body of the writing instrument. The rear part of 28 is housed and concealed in the cap 53, the appearance is simple, the brush body is short, the ink can be prevented from being stained, and when the writing state is switched, the brush tip 55 and the rear part of the shaft body 28 are The shaft 28 and the cap 53 are protruded from each other and extended to the length of the writing posture. In other words, a commercially available tail plug or grip pressing operation, or the cap is rotated to advance or retract the writing core. The knob 49 is provided on the thumb side of the writing instrument by applying the known technique of the retractable ballpoint pen, and the writing core 54 and the shaft body 28 can be operated together by operating the knob 49.

Specifically, the cap 53 is relatively longer than a general ballpoint pen, and the rear portion of the writing instrument shaft 28 from the hand grip portion 25 is accommodated in the cap 53, and between the cap 53 and the shaft body 28. The small coil spring 20 is provided between the brush tip 55 and the shaft body 28, and both the shaft body 28 and the brush core 54 are always biased toward the tail plug 52. A plurality of cam protrusions 50 are provided on the inner surface of the cylindrical body of the cap 53. The cam protrusions 50 are about two to three times longer than a general ballpoint pen, and the rotor 46 is slid between the cam protrusions 50. The slider 47 is arranged to be movable and rotatable, and a slider 47 that presses and rotates the rotor 46 is provided at the rear of the rotor 46, and a sliding auxiliary member 59 is provided after the slider 47.

On the other hand, an interlocking member 48 is provided behind the small coil spring 20 provided on the brush core 54, and the interlocking member 48 is interlocked with a knob 49 protruding from the thumb side of the shaft body 28. The shaft body 28 is provided with a notch 51 for pressing the knob 49 in the direction of the writing tip.

The present embodiment is formed as described above. When this is used, in the holding posture, the brush tip 55 is placed in the shaft body 28 and the rear portion of the shaft body 28 is in the cap 53 by the elasticity of the small coil spring 20 and the coil spring 63. Each is housed in a compact shape. When switching to the writing posture, when the thumb 49 is lightly pressed toward the fingertip with the thumb 2, the interlock member 48 is thrust while the knob 49 moves in the cutout 51, and the elasticity of the small coil spring 20 is obtained. While resisting, the brush tip 55 protrudes from the shaft body 28. Subsequently, by pressing the knob 49 continuously, the shaft 28 itself drives the sliding auxiliary member 59 from the tail portion, the slider 47 and the rotor 46 are pressed, and the elasticity of the coil spring 63 is reached. The rear portion of the shaft body 28 is projected outward from the cap 53. When the thumb is released when the length of the writing instrument is extended to the length required for the writing posture, the rotor remains hooked on the cam projection 50. When the thumb 49 is lowered with the thumb as it is, the extended writing instrument is rotated and a writing posture is obtained.

When switching the writing posture to the holding posture, once the knob 49 is pushed slightly forward with the thumb and then released, the movement of the sliding auxiliary member 59, the slider 47, and the rotor 46 causes the shaft 28 to cam. The brush core 54 and the rear portion of the shaft 28 are returned to their original holding positions by the elasticity of the small coil springs 20 and the coil springs 63. When the knob 28 is pushed up until the writing instrument is parallel to the index finger, the writing instrument is rotated and is held.

The procedure of the above-described attitude switching operation can be rotated after the writing instrument is shortened first, or can be shortened after being rotated first, depending on the preference. However, although the above operation was divided into several stages for easy understanding, the actual operation is not divided into stages. The operation is completed.

In the present embodiment, the structure of the writing instrument described above may be the same as any one of the first and third embodiments for the finger attachment portion and the connecting material.

1 index finger 2 thumb 3 middle finger
4 Second joint
5 root joints
6 Locking member
7 Finger wearing members
8 Stretched member
9 connecting member 10 outlet
11 Clamping member
12 Receiving member 13 Connecting member 14 Split port
DESCRIPTION OF SYMBOLS 15 Hemispherical recessed part 16 Hemispherical protrusion member 17 Intermediate wall 18 Cylindrical body 19 Clamping ring 20 Small coil spring 21 Projection part 22 Screw part 23 Triangular tooth 24 Horizontal notch 25 Hand grip part 26 Cover 27 Screw hole 28 Shaft body 29 Locking Tooth 30 torsion spring 31 telescopic arm 32 dovetail groove 33 fixed protrusion 34 gear 35 semicircular claw 36 tooth plate 37 one-way tooth 38 rotation auxiliary piece 39 horizontal axis 40 guard member 41 torsion spring 43 gear 44 elastic member 45 button 46 rotor 47 learning element 48 interlocking member 49 knob 50 cam projection 51 notch 52 tail plug 53 cap 54 writing core 55 writing tip 56 inclination 57 arm end 58 arm end 59 learning movement assisting member
60 bolt 61 one-way tooth 62 triangular space 63 coil spring

The present embodiment is formed as described above. When this is used, in the holding posture, the brush tip 55 is placed in the shaft body 28 and the rear portion of the shaft body 28 is in the cap 53 by the elasticity of the small coil spring 20 and the coil spring 63. Each is housed in a compact size. When switching to the writing posture, when the thumb 49 is lightly pressed toward the fingertip with the thumb 2, the interlock member 48 is thrust while the knob 49 moves in the cutout 51, and the elasticity of the small coil spring 20 is obtained. While resisting, the brush tip 55 protrudes from the shaft body 28. Subsequently, by pressing the knob 49 continuously, the shaft 28 itself drives the sliding auxiliary member 59 from the tail portion, the slider 47 and the rotor 46 are pressed, and the elasticity of the coil spring 63 is reached. The rear portion of the shaft body 28 is projected outward from the cap 53. When the thumb is released when the length of the writing instrument is extended to the length required for the writing posture, the rotor stays hooked on the cam protrusion 50. When the thumb 49 is lowered with the thumb as it is, the extended writing instrument is rotated and a writing posture is obtained.

1 index finger 2 thumb 3 middle finger
4 Second joint
5 root joints
6 Locking member
7 Finger wearing members
8 Stretched member
9 connecting member 10 outlet
11 Clamping member
12 Receiving member 13 Connecting member 14 Split port
DESCRIPTION OF SYMBOLS 15 Hemispherical recessed part 16 Hemispherical protrusion member 17 Intermediate wall 18 Cylindrical body 19 Clamping ring 20 Small coil spring 21 Projection part 22 Screw part 23 Triangular tooth 24 Horizontal notch 25 Hand grip part 26 Cover 27 Screw hole 28 Shaft body 29 Locking Teeth 30 Torsion spring 31 Telescopic arm 32 Dovetail groove 33 Fixed protrusion 34 Gear 35 Semicircular claw 36 Tooth plate 37 Unidirectional tooth 38 Rotating auxiliary piece 39 Horizontal axis 40 Guard member 41 Torsion spring 43 Gear 44 Elastic member 45 Button 46 Rotor 47 learning element 48 interlocking member 49 knob 50 cam projection 51 notch 52 tail plug 53 cap 54 writing core 55 writing tip 56 inclination 57 arm end 58 arm end 59 learning movement assisting member
60 bolt 61 one-way tooth 62 triangular space 63 coil spring

When switching the writing posture to the holding posture, once the knob 49 is pushed slightly forward with the thumb and then released, the movement of the sliding auxiliary member 59, the slider 47, and the rotor 46 causes the shaft 28 to cam. The brush core 54 and the rear portion of the shaft 28 are returned to their original holding positions by the elasticity of the small coil springs 20 and the coil springs 63. When the knob 49 is pushed up until the writing instrument is parallel to the index finger, the writing instrument is rotated to be in a holding posture.

In the present embodiment, the structure of the writing instrument described above may be the same as any one of the first embodiment and the third embodiment in the finger mounting portion and the connecting portion.

Claims (8)

Holding the writing instrument on the thumb side of the forefinger through the finger attachment part and the connecting part, and using the writing instrument finger holder and the writing instrument for wearing the finger that is used while alternately switching the holding attitude and the writing attitude. When switching between the writing position and the writing position, the writing tool does not reach the required position or does not go too far and stops at the required position, and in the holding position, the tip of the writing tool is behind the tip of the index finger In the writing position, the writing instrument can move forward and backward or extend and retract in front of the index finger.In the holding position, the writing instrument is held parallel to the index finger, and in the writing position, the tip of the writing instrument is the fingertip of the index finger. The tilting function that is placed underneath, the switching operation between writing and holding postures, the simple operation function that can be done only by the movement of the thumb, the holding posture and the writing posture, the finger from the writing instrument And even, like writing instrument posture stabilization function writing instrument posture not collapse, or five writing instruments finger holders and fingers mounting writing instrument comprising the features. The position of the connecting part in the writing instrument finger holder and the finger wearing writing instrument that is used while holding the writing instrument on the thumb side of the index finger and switching the holding attitude and writing attitude alternately via the finger attachment section and the coupling section. Is provided below the writing instrument when the writing instrument is held in parallel with the index finger. Holding the writing instrument on the thumb side of the forefinger through the finger attachment part and the connecting part, and using the writing instrument finger holder and the writing instrument for wearing the finger that is used while alternately switching the holding attitude and the writing attitude. In the switching operation between alternating writing and writing posture, the writing posture of the holding posture is pushed down with the thumb from the upper side to the lower side to become the writing posture, and the writing posture of the writing posture is pushed upward from the lower side with the thumb to be in the holding state. A writing instrument finger holder and a writing instrument for attaching a finger according to any one of claims 1 and 2. Hold the writing instrument on the thumb side of the index finger through the finger attachment part and the connecting part, and use it while switching the holding posture and writing posture alternately. Either of the above-mentioned claim 1 and claim 2, wherein the operation of switching between the holding posture and the writing posture of the writing instrument can be performed only by repeating the movement of pushing up and releasing from below. Writing instrument finger holder and writing instrument. Holding the writing instrument on the thumb side of the forefinger through the finger attachment part and the connecting part, and using the writing instrument finger holder and the writing instrument for wearing the finger that is used while alternately switching the holding attitude and the writing attitude. The operation of switching to a writing posture is made possible by only operating a button provided on the connecting portion without having to touch the body of the writing instrument with the thumb. Such a writing instrument finger holder and a writing instrument for finger wearing. The writing instrument is held on the thumb side of the index finger via the finger attachment part and the connecting part, and the writing instrument is held in the writing instrument finger holder and the finger wearing writing instrument that is used while alternately switching the holding attitude and the writing attitude. The writing instrument finger holder and finger attachment according to any one of claims 1 to 5, wherein the writing instrument is automatically advanced / retracted or expanded / retracted when the alternate attitude between the holding instrument and the holding instrument is switched. Writing instrument. A finger-worn writing instrument that is used while holding the writing instrument on the thumb side of the index finger and switching the holding posture and the writing posture alternately via the finger attachment portion and the connecting portion, and the tip of the writing instrument in the holding posture. 4. The finger wearing writing instrument according to claim 1, wherein the entire shaft body is housed in a cap. A finger-worn writing instrument that is used by alternately switching between a holding posture and a writing posture by holding the writing implement on the thumb side of the index finger via the finger wearing portion and the connecting portion, and the writing posture and the holding posture of the writing implement. The above-described switching operation allows the tip of the writing instrument to be automatically inserted into and removed from the shaft, and at the same time, the rear part of the shaft of the writing instrument is automatically inserted into and removed from the cap. A writing instrument for attaching a finger according to claim 2.