Note: Descriptions are shown in the official language in which they were submitted.
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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
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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
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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;
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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;
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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
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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
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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
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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
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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
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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
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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.
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