CA2492182C

CA2492182C - Structure of writing tool

Info

Publication number: CA2492182C
Application number: CA 2492182
Authority: CA
Inventors: Bao-Shen Liu; Chang-Yun Yong
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-10
Filing date: 2005-01-07
Publication date: 2008-10-21
Anticipated expiration: 2025-01-07
Also published as: GB2409840B; GB0400541D0; MXPA05000468A; DE202005000267U1; CA2492182A1; FR2864928B1; GB2409840A; ITMI20050022A1; FR2864928A1

Abstract

A structure of a writing tool includes a holding part, a writing end and a connecting part connected therebetween, in which the writing end and the holding part are disposed on different axes. When the user is operating the writing tool, 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 holding end is disposed at the front end of the holding part of the writing tool, and each surface of the holding end can be twisted into irregular surfaces. Since the holding part, the connecting part and the writing end are substantially arranged as a Z letter, a perfect fitting feeling of the fingers can be created. Therefore, different users can feel comfortable and the fingers of the users with different holding poses can be naturally directed to a correct holding position, so as to form various geometric states suitable for hand holding. In addition, the holding part includes a receiving space for receiving the refills for substituting.

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 THE 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 INVEN7.'ION

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. 1 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. SB 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 inventian;
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. 17A 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. 18A 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. l and 1 A. The structure of the writing tool provided by the present invention mainly includes a holding part 1 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 1 are disposed on different axes. The structure of the writing tool further includes a connecting part 3 connected between the holding part 1 and the writing end 2, and the holding part 1, the writing end 2 and the connecting part 3 are substantially arranged as a Z
letter. A holding end 11 is disposed on the front end of the holding part 1 close to the connecting part 3. The cross-section of the holding end 11 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 11, 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 11 is put around the holding part 1 externally. For example, a triangular plastic sleeve as a holding end 11 is put around the front end of the holding part 1 to enhance the purpose of adjusting the holding pose of the user.
Please refer to Figs. 3, 3.A and 3B. The holding end 11 is substantially a triangle.
Due to the triangular holding end 11 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 11 can be rotated, which results in different angles of the writing end 2, as shown in Fig. 3A. Therefore, rotating the holding end 11 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 skid proof patterns to enhance the holding effect.
Furthermore, the holding end 11 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 Fig4 through Fig. B. The holding end 11 is formed of soft materials such as rubber to form a flexible polygonal contour. With an angle formed between two center axis of the writing end 2 and the holding part 1, the holding end 11 which being fitted to the holding part 1 can be suitably twisted to any direction at the user's will. 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 the approximately 2 shaped position (as shown in Fig.4A and Fig.4B), in which each surface of the holding end 11 would be deflected and in irregular surfaces 113, 114, 115 resulting producing a tensile force on the other end 112 of the holding part 1 the due to the flexibility of the holding end 11, covering the holding part 1 and the portion between the writing end 2 and the holding part 1 as well.
Besides, the tensile force produced at the other end 112 also causes deformation of the holding end 11. When the plastic sleeve is distorted in accordance with the irregular surfaces 113, 114, 115, the original shapes of 113 and 114 will be changed both in curvature and angle following the motion of the holding end 11. Thus the best curvature and angle can be obtained at the position where the two irregular curves 113, 114 meet the upper portion of the holding end 11 and the other writing end 2 according to the individual user writing habit, so as to create perfect fitting 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.
As shown in Fig.S, according to individual habit of the user, it is a writing position suitable for a right handed writer when the holding end 11 is twisted to one position, while it is suitable for a left handed writer when the holding end 11 is twisted to the other position.
Please refer to Figs. 5, SA, and SB. A pressing part 24 is disposed at the rear end of the same axis with the writing end 2. A bend sided angle is formed between the pressing part 24 and the holding part 1. When the user holds the writing tool, a single finger 91 (forefinger usually) would be against the sided angle 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 of the 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 sided angle of 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. SA), as well as the thumb 92 (as shown in Fig.
SB) or other l0 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 11 is externally put around the holding part l, 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 of the 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. 11. 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 41 d 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 S. 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 59a and a hollow screw cap 59b are disposed at the rear end of the holding part 1 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 ib, 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 l 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 similax 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

1. A offset pen, comprising:
a holding part extending in a longitudinal direction to be held and operated by a user;
a writing end including a markable refill provided for writing;
a connecting part connected between a front end of said holding part and a rear end of said writing end, said writing end and said holding part being disposed along different axes respectively, thereby forming a visible space between said writing end and said holding part; said writing end and said connecting part being pivotally mounted each with respect to the other about an axis extending normal to said longitudinal direction for selectively adjusting an angle between said writing end and said holding part; and a holding end disposed on said front end of said holding part and being one of:
i) a triangle and ii) a polygon, which is adjustable when held and operated by said user for keeping a correct writing angle.

2. The structure according to claim 1, wherein said holding part, said writing end and said connecting part are substantially arranged as a Z letter.

3. The structure according to claim 1, wherein said holding end is formed independently and then put around said holding part, said holding end is formed of soft materials with plasticity, allowing the user to optimally adjust the flexibility of said holding end upon operating to conform to a holding pose of said user.

4. The structure according to claim 1, wherein said writing end is independently formed from said holding part and said connecting part.

5. The structure according to claim 1, wherein said markable refill is selected from a group consisting of a pencil, a colored pencil, a charcoal pencil, a crayon, a chalk, rubber, water-based fibers, water-based animal hair, water-based chemical hair, water-based plastic compounds, water-based powder-based solid, and oil-based powder-based solid.

6. The structure according to claim 1, wherein said writing end is an offset pen structure applicable for use with an element selected from the group consisting of a ballpoint pen, a rollerball pen and a pencil.

7. 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 substitution of one refill for another.

8. The structure according to claim 7, wherein at least one end of said receiving space has openings for storing said refills.

9. The structure according to claim 1, wherein a pressing part is disposed at a rear end of, and coaxial with, said writing end, and when said user holds said writing tool, a forefinger of said user is against said pressing part, and other fingers of said user are naturally directed on other end surfaces.