GB2409840A

GB2409840A - Writing instrument with offset writing point

Info

Publication number: GB2409840A
Application number: GB0400541A
Authority: GB
Inventors: Bao-Shen Liu; Chang-Yun Yong
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-10
Filing date: 2004-01-10
Publication date: 2005-07-13
Anticipated expiration: 2024-01-10
Also published as: GB0400541D0; MXPA05000468A; FR2864928A1; DE202005000267U1; GB2409840B; ITMI20050022A1; CA2492182A1; CA2492182C; FR2864928B1

Abstract

A writing instrument includes a holding part 11 and a writing end 2 in which the writing end and the holding part are disposed on different axes. When the user is operating the writing instrument the holding part inclines naturally while the writing end keeps vertical to the writing surface, and the writing result can be observed through the visible space formed between the writing end and the holding part. A triangular holding end 11 is disposed at the front end of the holding part of the writing instrument, and rotably adjustable which results in different angles of the writing end (Fig 3A) and thickness change of the writing line (Fig.3B). Since the holding part, connecting part (3, Fig.2) and the writing end are arranged as a Z letter, a perfect fitting feeling of the fingers can be created. In addition, the holding part includes a receiving space for receiving the refills for substituting. (Fig.7).

Description

STRUCTURE OF WRITING TOOL

FIELD OF THE INVENTION

The present invention relates to a structure of a writing tool, and particularly to a structure of a writing tool having a holding structure, which lets the user keep a good writing habit to ensure smooth writing and neat written characters. The structure of the writing tool can also overcome the disadvantage of the difficulty of seeing the writing position, increase the comfort of the operating fingers, and is more easily operated.

BACKGROUND OF TEIE INVENTION

For a long time, all the common writing tool, such as a pencil, a colored pencil, a pen, a rollerball pen or a writing brush, belongs to a linear design, i.e. the writing end and the holding part are designed on the same axis. Due to the structure limit of the human hand, the holding part would be inclined rearward, which results in an inclined angle between the writing end and the working surface. Also, the writing surface would be sheltered by the hand and the writing end of the writing tool, so that the writer cannot clearly monitor the writing contents in time or control the precision.

Therefore, for monitoring the writing contents, the writer has to adjust his pose all the time upon operating, even adopt an improper holding manner, so it is hard to develop a good writing habit, and it causes bad influences on the hand and the vision. Especially for those kids whose hands and control functions are not well developed yet, the conventional linear writing tool almost cannot let the kids operate smoothly.

Because of the above-described disadvantages generated from the conventional writing tool, the applicant keeps on carving unflaggingly to develop a new structure of the writing tool of the present invention through wholehearted experience and research.

SUMMARY OF THE INVENTION

It is an object of the present invention to provide a structure of the writing tool, in which the writing end and the holding part of the writing tool are not arranged at the same axis, but substantially arranged as a Z letter. The holding end has a positioning effect, which lets the user get a concerted holding action and develop a natural and correct writing habit.

It is a second object of the present invention to provide a structure of the writing tool with the function of adjusting the holding pose of the user and keeping the user's operation in the best condition.

It is a third object of the present invention to provide a structure of the writing tool which is applicable to various pens, such as a ballpoint pen, a rollerball pen and a pencil, etc. It is a fourth object of the present invention to provide a structure of the writing tool in which the refill can be various types according to the needs, such as a pencil, a colored pencil, a charcoal pencil, a crayon and a chalk, etc., and the refills for substituting are contained in the receiving space of the holding part.

It is a fifth object of the present invention to provide a structure of the writing tool in which a visible space is formed between the writing end and the holding part. The visible space provides an observing region so that the user can monitor the writing condition and keep a good writing pose.

It is a sixth object of the present invention to provide a structure of the writing tool in which a fixing pillar is disposed in the writing end to prevent the backing of the refill. The length of the fixing pillar can be adjusted according to the type of the refill to facilitate the positioning of the refill.

It is a seventh object of the present invention to provide a structure of the writing tool having an adjustable holding end structure, in which the holding end can be twisted according to the user's holding pose to obtain the most optimal holding pose.

It is an eighth object of the present invention to provide a structure of the writing tool in which the different axial angle of the writing end with respect to the holding part can be adjusted to obtain the most optimal holding pose.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention may best be understood through the following description with reference to the accompanying drawings, in which: Fig. l shows an illustrative view of the appearance of the writing tool according to the present invention; Fig. lA shows an illustrative view of the structural end of Fig. l; Fig. 2 shows an illustrative view of the appearance of the writing tool according to the present invention, in which the holding end is put around the holding part externally; Fig. 2A shows an illustrative view of holding end of Fig 2; Fig. 2B shows an illustrative view of the structural end of Fig 2; Fig. 3 shows the variation of the holding direction according to the present invention; Fig. 3A shows an illustrative view of a certain holding direction; Fig. 3B shows an illustrative view of the variation of the writing view and the writing line; Fig. 4 shows an illustrative view of the flexible action of the holding end according to the present invention; Fig. 4A shows an illustrative view of the flexible action of the holding end in one direction; Fig. 4B shows an illustrative view of the flexible action of the holding end in another direction; Fig. 5 shows an illustrative view of the holding action in another direction; Fig. SA shows an illustrative side view of the holding action of the fingers; Fig. 5B shows another illustrative side view of the holding action of the fingers; Fig. 6 shows an illustrative view of the disassembly structure of the fixing ring and the writing tool according to the present invention; Fig. 7 shows a partial cross-sectional view of the writing tool with the fixing ring according to the present invention; Fig. 8 shows an illustrative view of the assembly structure with the fixing ring according to the present invention; Fig. 8A shows an illustrative view of the refill structure with the reinforcing ribs according to the present invention; Fig. 8B shows an illustrative view of the cap according to the present invention; Fig. 8C shows an illustrative top view of Fig. 8B; Fig. 9 shows an illustrative view of the structure of the refills according to the present invention; Fig. 10 shows an illustrative view of the fixing pillar according to the present invention; Fig. 11 shows another illustrative view of the fixing pillar according to the present invention; Fig. 12 shows an illustrative view of the reinforcing ribs on the fixing pillar according to the present invention; Fig. 12A shows a cross- sectional view along A-A line of Fig. 12; Fig. 13 shows an illustrative view of the rotation of the fixing pillar according to the present invention; Fig. 14 shows an illustrative view of the combination of a bigger refill seat according to the present invention; Fig. 15 shows another illustrative view of the combination of a bigger refill seat according to the present invention; Fig. 16 shows illustrative views of various refill types; Fig. 17 shows an illustrative view of the restriction edge according to the present invention; Fig. 1 7A shows an illustrative view of the structure of the restriction edge according to the present invention; Fig. 18 shows an illustrative view of the disassembly structure of the writing tool and the inner tube according to the present invention; Fig. 1 PA shows an illustrative view of the refill disarrangement without the inner tube; Fig. 19 shows an illustrative view of the assembly structure of the writing tool and the inner tube according to the present invention; Fig. 20 shows an illustrative view of the variation of the refill disposition according to the present invention; Fig. 21 shows another illustrative view of the variation of the refill disposition according to the present invention; Fig. 22 shows an illustrative view of the disassembly structure of the separate writing end according to the present invention; Fig. 23 shows an illustrative view of the assembly structure of the separate writing end according to the present invention; Fig. 23A shows a cross-sectional view of the writing end of Fig. 23; Fig. 24 shows an illustrative view of the separate writing end of another direction according to the present invention; Fig. 25 shows an illustrative view of the disassembly structure of the writing end with a rotating axis design according to the present invention; Fig. 26 shows an illustrative view of the disassembly structure of the writing end with a rotating axis design of another direction according to the present invention; Fig. 27 shows an illustrative view of the assembly structure of the writing end with a rotating axis design according to the present invention; and Fig. 28 shows an illustrative view of the action of the writing end with a rotating axis design according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to Figs. 1 and 1A. The structure of the writing tool provided by the present invention mainly includes a holding part l and a writing end 2 disposed on the front end of the holding part l, so that the writing end 2 and the holding part l are disposed on different axes. The structure of the writing tool further includes a connecting part 3 connected between the holding part l and the writing end 2, and the holding part l, the writing end 2 and the connecting part 3 are substantially arranged as a Z letter. A holding end l l is disposed on the front end of the holding part l close to the connecting part 3. The cross-section of the holding end l l is a triangle, which is suitable to be held for the user.

Therefore, when the user operates the structure of the writing tool of the present invention, his hand would be directed to a correct position on the holding end l l, so as to avoid improper holding pose, ensure holding on the correct position each time, and develop a good holding habit.

Please refer to Figs. 2 and 2B. The holding end l l is put around the holding part l externally. For example, a triangular plastic sleeve as a holding end l l is put around the front end of the holding part l to enhance the purpose of adjusting the holding pose of the user.

Please refer to Figs. 3, 3A and 3B. The holding end l l is substantially a triangle.

Due to the triangular holding end l l accompanying with the Z letter structure of the writing tool of the present invention, a best holding pose, which conforms to the nature most, can be formed. In addition, the holding end l l can be rotated, which results in different angles of the writing end 2, as shown in Fig. 3A. Therefore, rotating the holding end l l can not only keep the comfortable holding pose, but also create an adjustable writing view and obtain a thickness change of the writing line, as shown in Fig. 3B. Moreover, each end surface of the holding end 11 can further include skidproof patterns to enhance the holding effect.

Furthermore, the holding end l l can be changed to the form of other geometric polygon, as long as the holding surface of the geometric polygon is adjusted to be suitable for naturally holding of the hand 9.

Please refer to Figs. 4, 4A and 4B. The holding end l l is formed of soft materials, such as rubber. Via the plasticity of the holding end 11, the user can optimally adjust the flexibility of the holding end 11 upon operating. As shown in Fig. 4, when one end 111 of the holding end 11 is twisted to one direction, the other end 112 of the holding end 11 would be jammed at Z letter position (as shown in Figs. 4A and 4B), in which each surface of the holding end 11 would be deflected and result in irregular surfaces 113, 114, llS, so as to create perfect tiffing feeling of the fingers. In addition, since the structure can be adjusted into variable geometric holding states (as shown in Figs. 4A and 4B), different users can get respective comfortable holding poses therefrom, in which their fingers can be naturally directed to the correct holding position.

Please refer to Figs. 5, 5A, and 5B. A pressing part 24 is disposed at the rear end of the same axis with the writing end 2. When the user holds the writing tool, a single finger 91 (forefinger usually) would be against the end surface of the pressing part 24 for positioning, and other fingers 92, 93 would be naturally directed to attach on the end surfaces at both sides of the holding end 11, so that the user can direct the writing end 2 with his fingers for writing smoothly and operate the writing tool more flexibly and stably. In addition, for adapting different lengths, sizes and thicknesses ofthe fingers of different hands, when the writing end 2 accompanying with the holding end 11 are provided for the fingers of the user to be against the pressing part 24 for positioning, the thumb 92, forefinger 91 and middle finger 93 can perfectly fit on the surfaces of the holding part 11 and each surface of the holding end 11 would be twisted to form irregular surfaces 113, 114, 115, so as to create perfect fitting feeling of the fingers. Moreover, the pressing part 24 can be provided for the forefinger 91 (as shown in Fig. 5A), as well as the thumb 92 (as shown in Fig. 5B) or other fingers according to the needs of the user, to be against, so as to provide variable selectivity of comfort.

Please refer to Fig. 6. If the holding end 1 1 is externally put around the holding part 1, a fixing ring 12 can be added at the rear end of the holding part 11 to avoid the slip of the holding end 11. In addition, for conforming to the mold design, the holding part 1 and the Z form main body of the writing tool can be manufactured independently, and then fixed together by screwing or inserting.

Please refer to Fig. 7. The holding part 1 includes a receiving space 5, and the writing end 2 is used to contain a markable refill 4 provided for writing. A refill seat 41 is disposed around the refill 4 as a support. A visible space 6 is formed between the writing end 2 and the holding part 1, and the visible space 6 provides an observing region so that the user can monitor the writing condition. The receiving space 5 in the holding part 1 extends through the connecting part 3 and forms openings 51, 52 at two ends for storing a plurality of markable refills 4 used for substituting. In addition, a hollow tail stopper 8 is disposed at the opening 52 of the holding part 1, and the hollow diameter of the hollow tail stopper 8 is smaller than the outer diameter of the refill seat 41, so as to prevent the refill 4 from falling out.

Please refer to Fig. 8. The front section of the receiving space 5 includes a restriction edge 56, which is formed by the end 51 of the receiving space 5 in the holding part 1. The diameter of the restriction edge 56 is smaller than the outer diameter of the refill seat 41, so that the refill 41 can be jammed thereon. A buffer space 53 exists in front of the refill seat 41, and it can prevent the hand 9 of the user from being hurt when the most front refill 4 stretches out.

Please refer to Fig. 8A. For the stability of writing, the refill seat 41 must perfectly fit with the writing end 2, but it also increases the difficulty of pulling out the refill for substituting. Therefore, reinforcing ribs 42 are disposed on the surface of the refill seat 41 to reduce the friction between the refill seat 41 and the writing end 2, so that the refill seat 41 can be easily taken out from the writing end 2.

Please refer to Figs. 8 and 8A C. The structure of the writing tool further includes a cap 7. The cap 7 has a clasp point 71 for clasping on the writing end 2 or the rear end ofthe holding part 1, and a rubber 72 at the front end of the cap. The cap 7 further has an air hole 73 to ventilate the air and avoid blocking the breathing when it is incautiously swallowed.

Please refer to Figs. 9 10. For overcoming the disadvantage that the refill 4 may back when it is pressed (as shown in Fig. 9), a fixing pillar 21 is disposed in the writing end 2, so that when the refill seat 41 is fixed in the writing end 2, the fixing pillar 21 would prop up the rear end of the refill 4 in the refill seat 41 for smoothing the writing action (as shown in Fig. 10).

Please refer to Fig. 1 1. Alternatively, a fixing pillar 21 can be formed directly by the front end of the writing end 2, so that when the refill seat 41 is put on the fixing pillar 21 externally, the fixing pillar would prop up the refill 4 and prevent it from backing.

The connecting part 3 of the aforesaid structure of the writing tool includes one or more artistic holes 31. The artistic hole 31 can be any geometric modeling to increase the aesthetic feeling of the product.

Please refer to Figs. 12 and 12A. The fixing pillar 21 also includes a plurality of reinforcing ribs 22 on its surface to reduce the friction when the fixing pillar 21 and the refill seat 41 are tightly fit and thus facilitate taking out the refill seat 41 form the fixing pillar 21.

Please refer to Fig. 13. The fixing pillar 21 is locked on the writing end 21 by screwing 23 or other buckling manner, and the length of the fixing pillar 21 can be adjusted by rotation for adapting different standards of different refills 4a, 4b.

Please refer to Fig. 14. The refill seat 41 with a greater size can be put around the writing end 2 externally, and the refill 4c can also be propped by the fixing pillar 21.

Please refer to Fig. 15 accompanying with Fig. 6. The refill 4d, the refill seat 41d and the writing end 2 are combined together by screwing 23 or other buckling manner to increase the stability of writing.

Please refer to Fig. 16. The refill 4 of the present invention can be a pencil, a colored pencil, a charcoal pencil, a crayon, a chalk, a rubber, a writing refill of water-based fibers, a writing refill of water-based animal hairs, a fibrous refill of water-based chemical hairs, a writing refill of water-based plastic compounds, or a refill of a water-based, oil-based or powder-based solid.

Please refer to Figs. 17 and 17A. The front section of the receiving space 5 includes a restriction edge 56, which is a ring 56b or other prior art that can buckle the refill seat 41.

Please refer to Figs. 18, 18A and 19. Since the receiving space 5 has a certain diameter, when it contains a refill 4 with a smaller diameter, the refills 4 may deviate and disarrange with each other (as shown in Fig. 18A). Therefore, an inner tube 57 is further disposed in the receiving space 5. The refills 4 for substituting are put in the inner tube 57, so that the whole inner tube 57 can be directly taken out for substituting. In addition, the inner tube 57 can confine the distance between the refills to overcome the problem of refill disarrangement.

Please refer to Fig. 20. A tail stopper S9a and a hollow screw cap 59b are disposed at the rear end of the holding part l for providing another storing manner of the refills 4.

Certainly, the inner tube 57 can be disposed in the holding part 1 to store the refills 4 for the consideration of modeling. The holding part 1 further includes a combination end, which is combined by screwing or other buckling manner.

Please refer to Figs. 20 and 21. The structure of the writing tool further includes a cap 7a. The cap 7a has a nut 7b, which is fit with the screw 28 of the writing end 2. The cap 7a can also be locked on the hollow screw cap 59b of the tail stopper 59a disposed at the rear end of the holding part 1.

Please refer to Figs. 22 24. For conforming to the mold design, the writing end 2, the holding part 1 and the connecting part 3 can be manufactured independently. The rear end of the writing end 2 includes a positioning slot 25, and the connecting part 3 includes a positioning plug 26 correspondingly, so that the positioning slot 25 and the positioning plug 26 can fix with each other by directly fitting or other prior technique.

Please refer to Figs. 25 27. A rotating axis 27 is disposed between the writing end 2 and the connecting part 3, so that the writing end 2 can be rotated at a different axial angle with respect to the connecting part 3 and adjusted according to the writing pose or habit of the user to achieve the best operating effect.

Please refer to Fig. 28. Except to be rotated at a different axial angle with respect to the connecting part 3 and adjusted according to the writing pose or habit of the user, the writing part 2 can also be rotated at a great angle to result in an upward refill, so that the writing tool can be collected in the pocket of the clothes or the collecting box without the need of the cap.

While the invention has been described in terms of what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention need not be limited to the disclosed embodiment. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.

Claims

WHAT IS CLAIMED IS: 1. A structure of a writing tool, comprising: a

holding part to be held and operated by a user; a writing end to be written by said user; a connecting part connected between a front end of said holding part and a rear end of said writing end, so that said writing end and said holding part are disposed at different axes respectively and a visible space is formed between said writing end and said holding part; and a holding end disposed on said front end of said holding part and being a triangle or other polygon, which is adjustable when held and operated by said user for keeping a correct writing angle.
2. The structure according to claim l, wherein said holding part, said writing end and said connecting part are substantially arranged as a Z letter.
3. The structure according to claim l, wherein said holding end and said holding part are formed integrally.
4. The structure according to claim l, wherein said holding end is formed independently and then put around said holding part.
5. The structure according to claim 4, wherein a fixing ring is set on a rear end of said holding end.
6. The structure according to claim l, wherein said holding end is externally put around said holding part of said structure of said writing tool.
7. The structure according to claim l, wherein each end surface of said holding end includes a skidproof pattern to enhance a holding effect.
8. The structure according to claim l, wherein a rotating axis is set between said writing end and said connecting part for said writing end to be rotated at a different axial angle with respect to said connecting part.
9. The structure according to claim 1, wherein said writing end is independently formed from said holding part and said connecting part.
10. The structure according to claim 1, wherein a front end of said writing end includes a markable refill provided for writing.
11. The structure according to claim 10, wherein said markable refill is a pencil, a colored pencil, a charcoal pencil, a crayon, a chalk, a rubber, a writing refill of water-based fibers, a writing refill of water- based animal hairs, a fibrous refill of water-based chemical hairs, a writing refill of water-based plastic compounds, or a refill of a water- based, oil-based or powder-based solid.
12. The structure according to claim 11, wherein a refill seat is disposed around said refilland a fixing pillar is corresponding disposed in said writing end to prop up the rear end of said refill and prevent the backing of said refill when said refill seat is fixed in said writing end.
13. The structure according to claim 12, wherein a reinforcing rib is disposed on the surface of said fixing pillar to reduce the friction when said fixing pillar and said refill seat are tightly fit and thus facilitate taking out said refill seat form said fixing pillar.
14. The structure according to claim 12, wherein the length of said fixing pillar is adjusted by screwing or other buckling manner.
15. The structure according to claim 12, wherein a fixing pillar is formed directly by the front end of said writing end to fix said refill seat, so that when said refill seat is put on said fixing pillar externally, said fixing pillar props up said refill and prevent it from backing.
16. The structure according to claim 12, wherein said refill seat with a greater size is put around said writing end externally.
17. The structure according to claim 12, wherein said refill seat is fixed in said writing end by screwing or other buckling manner.
18. The structure according to claim 1, wherein said writing end is a ballpoint pen, a rollerball pen or a pencil
19. The structure according to claim 1, wherein said holding part includes a receiving space for receiving a plurality of refills, and said receiving space extends to said connecting part for storing said refills for substituting.
20. The structure according to claim 19, wherein an inner tube is disposed in said receiving space, and said refills for substituting are put in said inner tube, so that the whole inner tube can be directly taken out for substituting, and the distance between said inner tube and said refills is confined to overcome the problem of refill disarrangement.
21. The structure according to claim 19, wherein the front section of said receiving space includes a restriction edge for clipping and positioning the most front refill seat, and a buffer space exists in front of said refill seat to prevent the hand of said user from being hurt when the most front refill 4 stretches out.
22. The structure according to claim 19, wherein one or both ends of said receiving space have openings for storing said refills for substituting.
23. The structure according to claim 1, wherein said holding end is formed of soft materials with plasticity, so that said user can optimally adjust the flexibility of said holding end upon operating to conform to the holding pose of said user.
24. The structure according to claim 1, wherein a pressing part is disposed at the rear end of the same axis with said writing end, and when said user holds said writing tool, the forefinger is against said pressing part, and other fingers are naturally directed on other end surfaces.
25. The structure as claimed in any preceding claim, wherein a combination part is disposed on the holding part and attached by screwing or compression, such that the holding part can be opened for storing refills.

25. The structure according to claim 1, wherein a combination part is disposed on said holding part and combined by screwing or other buckling manner, in which said holding part can be opened for storing said refills for substituting.

:: :: ë .: A: . . ë.. :e:e CLAIMS Amended claims have been filed as follows A writing tool structure, comprising: a holding part to be held and operated by a user; a writing part; and a connecting part connected between a front end of the holding part and a rear end of the writing part, wherein the holding part comprises a holding end of triangular or other polygonal section disposed on the front end thereof, the holding end being adjustable when held by the user for maintaining a correct writing angle; and wherein the connecting part connects the writing part and the holding part such that they are disposed along different axes and so that a visible space is formed between the writing part and the holding part.

2. A structure as claimed in claim 1, wherein the holding part, the writing part and the connecting part are arranged in the form of a letter Z. 3. A structure as claimed in claim 1 or 2, wherein the holding end and the holding part are formed integrally.

4. A structure as claimed in claim 1 or 2, wherein the holding end is formed independently and then placed around the holding part.

5. A structure as claimed in claim 4, wherein a fixing ring is provided on a rear end of the holding end.

6. A structure as claimed in and preceding claim, wherein the holding end is located externally around the holding part.

7. A structure as claimed in any preceding claim, wherein the surface of the holding end includes a non-slip pattern to enhance gripping.

8. A structure as claimed in any preceding claim, wherein an axis of rotation is .ji :: :: ë : . ..: :: .e: provided between the writing part and the connecting part such that the writing part can be rotated at different axial angles with respect to the connecting part.

9. A structure as claimed in any preceding claim, wherein the writing part is formed independently from the holding part and the connecting part.

10. A structure as claimed in any preceding claim, wherein a front end of the writing part includes a marker refill.

11. A structure as claimed in claim 10, wherein the marker refill comprises pencil, colored pencil, charcoal pencil, crayon, chalk, rubber, water-based fibers, water- based animal hair, fibrous water-based chemical hair, water-based plastic compounds, or a water-based, oil-based or powder-based solid.

12. A structure as claimed in claim 11, wherein a refill seat is disposed around the marker refill and a fixing pillar is correspondingly disposed in the writing part to support the rear end of the refill and prevent backwards movement of the refill when the refill seat is fixed in the writing part.

13. A structure as claimed in claim 12, wherein a reinforcing rib is disposed on the surface of the fixing pillar to reduce the friction when the refill seat is fitted tightly on the fixing pillar so as to facilitate removal of the refill seat from the fixing pillar.

14. A structure as claimed claim 12, wherein the length of the fixing pillar is adjusted by screwing or compression.

15. A structure as claimed in claim 12, wherein the fixing pillar is formed directly by the front end of the writing part to fix the refill seat, so that when the refill seat is located externally on the fixing pillar, the fixing pillar supports the refill and prevents backwards movement of the refill.

16. A structure as claimed in claim 12, wherein the refill seat is enlarged and /! .e.:: :e;:: ë:e located externally around the writing part.

17. A structure as claimed in claim 12, wherein the refill seat is fixed in the writing part by screwing or compression.

18. A structure as claimed in any preceding claim, wherein the writing part comprises a ballpoint pen, a rollerball pen or a pencil.

19. A structure as claimed in any preceding claim, wherein the holding part includes a receiving space extending to the connecting part for receiving and storing a plurality of refills.

20. A structure as claimed in claim 19, wherein an inner tube is disposed in the receiving space, and the refills are located in the inner tube, so that the whole inner tube can be removed for replacement, and the distance between the inner tube and the refills contained therein is confined to prevent disarrangement of the refills.

21. A structure as claimed in claim 19 or 20, wherein the front section of the receiving space includes a restriction edge for gripping and positioning the foremost refill seat, and a buffer space is provided in front of the refill seat to prevent the hand of the user from coming into contact when the foremost refill is extended.

22. A structure as claimed in claim 19, 20 or 21, wherein one or both ends of the receiving space have openings for storing the refills.

23. A structure as claimed in any preceding claim, wherein the holding end is formed of soft, plastic materials, so that the user can optimally adjust the flexibility of the holding end during use to conform to the desired holding pose of the user.

24. A structure as claimed in any preceding claim, wherein a pressing part is It :e:.. :. ;. :e e.- disposed at the rear end of, and coaxial with the writing part, such that when the user holds the writing tool, the forefinger is against the pressing part, and other fingers are naturally directed on other end surfaces.