JP6143429B2 - Writing instrument - Google Patents

Description

  The present invention relates to a writing instrument suitable for a marking pen or the like that allows the writer himself to adjust the orientation of the writing part at an arbitrary position where writing is easy by manually operating the writing part serving as a pen tip.

  Conventionally, writing tools of the type called underline markers that supply ink in the writing instrument body to the writing part of the pen tip generally have a wide chisel shape, so the writing direction is limited. And how to hold the writing was also decided naturally.

  In particular, when the cross-sectional shape of the writing instrument body is an elliptical shape other than a circular shape, the user may have a structure in which the way of holding the writing instrument body (pen body) is fixed (for example, Patent Document 1, 2). For this reason, there is a problem that the direction of the pen tip may be difficult to write.

In addition, in order to solve the problem that the flat tip serving as the pen tip rotates while drawing characters and pictures, an applicator (see, for example, Patent Document 3) in which the flat tip is firmly fixed. )It has been known.
However, if the pen tip is firmly fixed, there is a problem that it is difficult to tilt the pen tip depending on how it is held.

Japanese Patent Laid-Open No. 11-48679 (claims, paragraph [0013], etc.) JP 2012-20575 A (Claims, drawings, etc.) JP-A-7-195025 (Claims, FIG. 2 etc.)

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and is intended to solve this problem. An object of the present invention is to provide a writing instrument that can easily adjust the direction of the writing unit, and that does not rotate during writing.

  As a result of intensive studies to solve the above-described conventional problems, the present inventor has found that the writing instrument for the above purpose can be obtained by setting the writing portion serving as the pen tip to a specific structure, etc. It has been completed.

That is, the present invention resides in the following (1) to (3).
(1) A resin having a visibility which has an ink guiding portion for supplying ink from the writing instrument body to the writing part, forming an inclined surface where the tip of the writing part is flat with respect to the center line of the writing instrument body. A writing instrument comprising a holding body formed of a molded product, wherein the writing unit is rotatable through the holding body, and a body part serving as a writing instrument body is a non-circular shaft .
(2) The holder provided with the writing part can adjust the writing part to an arbitrary rotational position, and the fitting part with the writing instrument body is fitted with a fitting force higher than the writing pressure at the time of writing. The writing instrument as described in (1) above, which has a structure that does not rotate.
(3) The writing instrument according to (1) or (2) above, wherein the fitting part between the holding body provided with the writing part and the writing instrument body has a first fitting part and a second fitting part .

ADVANTAGE OF THE INVENTION According to this invention, it can set to the position which is easy to write by rotating a writing part and adjusting the position of a writing part arbitrarily, and a writing instrument used as a structure where a writing part does not rotate at the time of writing is provided. .
Moreover, the position of a writing part can be arbitrarily adjusted without making a hand dirty by making the outer periphery of a writing part into a resin molded product.

It is drawing of the writing instrument which shows an example of embodiment of this invention, (a) is a perspective view of the writing instrument seen from the front side, (b) is a perspective view of the writing instrument seen from the back side. (A) is a longitudinal cross-sectional view which shows an example of the state which attached the cap body to the writing instrument of FIG. 1, (b) is sectional drawing of the XX line in the (a). It is an expanded partial longitudinal cross-sectional view which shows the attachment state of the writing part and writing part main body in the writing instrument of FIG. (A) is a longitudinal cross-sectional view of the tip of the writing instrument of FIG. 1, (b) is a front view of a pen tip having a writing portion, and (C) is a perspective view of the pen tip. (A) is the front view of the writing instrument of FIG. 1, (b) is the left view, (c) is the top view. It is drawing which shows the state at the time of rotating the writing part of the writing instrument of FIG. 4 45 degrees, (a) is the front view, (b) is the left view, (c) is the top view. It is drawing which shows the state at the time of rotating the writing part of the writing instrument of FIG. 4 90 degrees, (a) is the front view, (b) is the left view, (c) is the top view. It is a longitudinal cross-sectional view of the writing instrument which shows the other example of embodiment of this invention. It is a longitudinal cross-sectional view of the writing instrument which shows the other example of embodiment of this invention. (A)-(c) is each drawing which shows the other example of the front axis | shaft and pen nib which can be used for the writing instrument of this invention, (a) is a longitudinal cross-sectional view of a front axis | shaft, (b) is writing. The front view of the nib which has a part and (C) are perspective views of a nib.

Embodiments of the present invention will be described below in detail with reference to the drawings.
1-7 is each drawing of the writing instrument which shows an example of embodiment of this invention.
The writing tool A of the present embodiment is a marking pen type writing tool, and as shown in FIGS. 1 to 3, the shaft cylinder 10, which serves as a writing tool body (shaft portion), the ink occlusion body 20, the relay porous body 30, and the pen tip. 40 and a cap body 60 are provided.
The shaft tube 10 is formed of, for example, a thermoplastic resin, a thermosetting resin, glass, or the like, and has a bottomed cylindrical rear shaft 11 that houses an ink occlusion body 20 impregnated with ink for writing instruments, and a pen. And a tip shaft 15 to which the tip 40 is fixed.
The rear shaft 11 is formed into a long bottomed elliptical cylinder shape (elliptical shaft) using a synthetic resin made of PP or the like, for example, and functions as a writing instrument body. The rear shaft 11 is provided with a holding member 12 formed of a holding piece for holding the rear end portion of the ink storage body 20 inside the rear end side, and the rear shaft as a whole and the front shaft described later are opaque or transparent (and half-finished). However, any of them may be adopted from the viewpoints of appearance and practical use. Further, the front shaft 15 is fixed to the opening 13 of the rear shaft 11 by fitting or the like.

  As shown in FIG. 4A, the front shaft 15 includes an annular fitting portion 16 that fits in the opening 13 of the rear shaft 11 on the rear side, a shoulder portion 17 on the front side, and a main body portion of the pen tip 40. And a holding member 19 formed of a holding piece for holding the front end portion of the ink storage body 20 is provided in the fitting portion 16. A fitting portion 18 a of the main body portion 42 of the nib 40 is provided on the inner peripheral surface of the fitting portion 18. The front shaft 15 of this structure is formed of, for example, a synthetic resin made of PP or the like.

The ink occlusion body 20 is impregnated with ink for writing instruments such as water-based ink and oil-based ink. For example, natural fibers, animal hair fibers, polyacetal resins, acrylic resins, polyester resins, polyamide resins, polyurethane resins. Resin, polyolefin-based resin, polyvinyl-based resin, polycarbonate-based resin, polyether-based resin, polyphenylene-based resin or other fiber bundles, processed fiber bundles such as felt, and sponge , Including porous bodies such as resin particles and sintered bodies. The ink occlusion body 20 is accommodated in the main body 11 of the shaft tube 10.
Further, the ink composition to be used is not particularly limited, and in an underline pen or the like, the ink can contain a fluorescent dye, for example, basic violet 11 or basic yellow 40.

  The relay porous body 30 serves as a relay core that supplies the ink of the ink storage body 20 to the ink guide section 50 provided on the holding body 55 of the pen tip 40 to be described later, and the insertion section on the front side of the ink storage body 20. It becomes a structure inserted in 21. The relay core 30 is a fiber bundle core obtained by processing a fiber bundle such as a fiber bundle or felt, like the ink occlusion body 20, or a resin particle porous body made of a hard sponge, a resin particle sintered body, or a sliver core. If the ink has continuous pores (flow paths) and the ink impregnated in the ink occlusion body 20 can be supplied to the ink guiding portion 50 of the holding body 55 via the relay core 30, its shape, structure, etc. Is not limited. Examples of the cross-sectional shape of the relay core include a circular shape, an elliptical shape, a square shape, a rectangular shape, a trapezoidal shape, a parallelogram shape, a rhombus shape, a kamaboko shape, and a half moon shape.In this embodiment, the cross-sectional shape is a circular shape. It has become.

Nib 40, as shown in FIG. 4 (b) and (c), provided with a writing section (pen core) 45 made of a non-symmetrical type, holding the writing unit 45, supply ink to the writing unit And a holding body 55 having an ink guiding part 50. A main body part 42 having a cylindrical part 41 for holding the relay porous body 30 is connected to the holding body 55 on the rear side. A flange portion 43 is provided on the outer peripheral surface of the main body portion 42, and the relay porous body 30 is fitted and held at the entrance of the tubular portion 41. In the present invention, "writing section is asymmetric type" and is intended to mean a rectangle, chisel-shaped, the writing portion of elliptical throat part is made from the wide.
On the outer peripheral surface of the main body portion 42 of the nib 40, a fitting protrusion 42a for fitting into the fitting portion 18a provided in the fitting portion 18 of the tip shaft 15 is provided. Note that the bottom surface of the main body portion 42 is a flat surface shaving portion 44.

The writing unit 45 is fixed to the tip of the holding body 55. For example, natural fiber, animal hair fiber, polyacetal resin, polyethylene resin, acrylic resin, polyester resin, polyamide resin, polyurethane Processing fiber bundles such as parallel fiber bundles or felts made of one or a combination of two or more of resin, polyolefin resin, polyvinyl resin, polycarbonate resin, polyether resin, polyphenylene resin, etc., or these fibers The bundle is made of a fiber core obtained by resin processing of a bundle or a porous body (sintered core) obtained by sintering various plastic powders.

Examples of the shape of the writing unit 45 include a chisel shape, a shell shape, a cylinder, an elliptical column, a cube, a rectangular parallelepiped, and the like, and its cross-sectional shape is a trapezoid, a parallelogram, a rhombus, Examples of the shape include a kamaboko shape and a half-moon shape. In this embodiment, the shape is a chisel shape. The chisel shape is a shape in which the tip forms an inclined surface with respect to the center line of the pen shaft, and the inclined surface is flat.
Moreover, it is desirable that the writing unit 45 is preferably inclined at an angle of 40 to 90 ° with respect to the major axis direction of the main body axis so as to have an inclination easy to write. The slope is °.
The shape, inclination, etc. of these writing parts 45 are appropriately set in accordance with the convenience of writing and the like. The writing portion 45 is a writing portion having a thick drawn line width, preferably a drawn line width of 2 mm or more, and more preferably a drawn line width of 3 mm or more.

The holding body 55 including the main body portion 42 is a material having visibility, such as PP, PE, PET, PEN, nylon (including amorphous nylon in addition to general nylon such as 6 nylon and 12 nylon). It is preferably composed of a material such as acrylic, polymethylpentene, polystyrene, ABS or the like and having a visible light transmittance of 50% or more.
Moreover, if the visible light transmittance of the holding body 55 is 80% or more, the characters written in the writing direction can be visually recognized well. The visible light transmittance can be obtained by measuring the reflectance using a multi-light source colorimeter.

The holding body 55 can be configured using two or more types of materials from the viewpoint of further improving the durability and visibility of one type of each of the above materials, or is configured with two or more types of materials. In that case, it is preferable that at least one is made of a material having a visible light transmittance of 50% or more, and it can be molded by various molding methods such as injection molding and blow molding.
In addition, by covering the outer peripheral surface of the holding body 55 with a rubber sheet having a high transmittance, it is possible to rotate without slipping during adjustment.

  The holding body 55 has at least one ink guide part 50 for supplying ink to the writing part. In the present embodiment, the writing part can maximize the area ratio of the visual recognition part. From the point of efficiently supplying ink to the porous body, one ink guiding portion 50 is provided in the center in the longitudinal direction. In addition, the shape, size, number, etc. of the ink guiding part 50 are such that the ink impregnated in the ink occlusion body 20 included in the writing instrument body becomes the writing part through the relay porous body 30, the ink guiding part 50, and the like. The shape, structure, size, number, etc. of the porous body 45 can be appropriately selected as long as the structure can efficiently supply ink to the porous body 45 by capillary action.

An annular step portion 49 is formed on the front side of the cylindrical portion 41, which is behind the rear end surface of the ink guide portion 50, and can contact the front end surface of the relay core 30, and is connected to the step portion 49 and the relay portion. A gap 48 is formed between the core 30. The gap 48 is a distance at which the end face of the relay core 30 does not come into contact with the stepped portion 49. Preferably, the length of the gap in the longitudinal direction is in a range of 0 <gap length ≦ 2 mm. In this embodiment, it is composed of a 1.5 mm gap. In the gap portion 48, an opening-type convex portion 49 a that is smaller than the diameter of the relay core 30 and larger than the diameter of the ink guide portion 50 is formed between the step portion 49 and the ink guide portion 50. .
In the nib 40 having this structure, the ink from the ink occlusion body 20 is subjected to capillary force action on the relay porous body 30, the gap portion 48, the convex portion 49a, the ink guiding portion 50, and the porous body (pen core) 45 serving as a writing portion. It is structured so that it can be continuously supplied, prevents the ink from drooling when writing, and can stabilize the writing flow and use up the ink in the ink occlusion body sufficiently. .

  Further, rib bodies 56 for holding the pen core 45 serving as a writing portion are provided on both side surfaces on the upper side of the holding body 55, and a bottom surface portion (see FIG. Not shown). An outlet of the ink guiding part 50 is formed at the center of the bottom part. Further, a contact portion 57 with which the front end surface of the pen core 45 contacts is provided on one end surface of the rib body, and the other end surface serves as an entrance for inserting the pen core 45.

  As shown in FIG. 2, the cap body 60 is detachably attached to the front shaft 15 by fitting or the like, and includes an inner cap portion 61 that protects the pen core 45, a cylindrical outer cap portion 62, and the like. The concave portion 63 having improved design is formed on the surface portion of the outer cap portion 62. The opening surface on the front side of the outer cap portion 62 is a wide opening surface so that the writing instrument can be inverted on a flat surface such as a desk.

In the writing instrument A of the present embodiment configured as described above, the pen tip 40 is fitted onto the fitting portion 18 a provided on the fitting portion 18 of the tip shaft 15 of the writing tool main body 10 on the outer peripheral surface of the main body portion 42. Therefore, when the main body portion 42 of the pen tip 40 is fitted into the fitting portion 18 of the tip shaft 15, the fitting projection 42a is fitted into the fitting portion 18a. Will be attached. In this embodiment, since the fitting shape of the fitting protrusion 42a and the fitting portion 18a is both annular (circular), the holding body 55 serving as the outer peripheral surface of the writing portion 45 formed of a resin molded product is provided. When rotated by hand, the writing unit 45 can be easily rotated 360 °, the position of the writing unit 45 can be arbitrarily adjusted, and a fitting force (fixing force) equal to or higher than the writing pressure at the time of writing. ), The writing part 45 becomes a writing instrument having a structure that does not rotate. Adjustment of the fitting force, the height of the fitting projection, which is assumed to be a suitable fitting force by adjusting the width direction length, the number of fitting portions, and the circumferential length.
5-7 is each drawing which shows an example of the state which rotated the writing part 45, FIG.5 (a)-(c) is a front view of the writing implement before rotating the writing implement A, a left view, 6 (a) to 6 (c) are each a plan view, and FIGS. 7 (a) to 7 (c) are diagrams showing states when the writing unit 45 of the writing instrument of FIG. It is each drawing which shows the state at the time of rotating the writing part 45 of a writing instrument 90 degrees.
Moreover, since the holding body used as the outer periphery of the writing part 45 can be shape | molded with a resin molded product, the position of a writing part can be adjusted arbitrarily, without dirtying a hand.

In the present embodiment, as described above, the pen tip 40 has at least one pen core 45 serving as a writing unit, and at least one ink guiding unit 50 that holds the pen core 45 and supplies ink to the writing unit. The holding body 55 has a relay porous body 30 for supplying the ink contained in the ink storage body 20 to the ink guiding portion 50 provided on the holding body 55, and the holding body 55 includes: Since it is made of a material having visibility, the entire surface (the whole) other than the ink guiding portion 50 in the holding body 55 becomes a visual recognition portion that can visually recognize the writing direction. The tip of the pen 15 protruding from the tip of the shaft 15 can be 40% or more. Preferably, the visual recognition part on the side surface of the holding body 55 of the pen tip is also 40% or more. Longitudinal center By forming and suitably setting the length in the width direction, the diameter, the cross-sectional area, etc. of the ink guiding part 50, the area ratio of the visual recognition part can be further set to about 50% or more and about 90% at the maximum, It is possible to provide a writing instrument that can be provided with sufficient visibility to surely read characters written in the writing direction as compared with the prior art and that can be used until the final writing. In particular, by forming the ink guiding part 50 in the center part in the longitudinal direction of the holding body 55, the ink can be efficiently supplied to the writing part 45, so that a writing instrument that can be used until the final writing is further provided. Will be.
In addition, by forming the ink guiding portion 50 at the center portion in the longitudinal direction of the holding body 55, the writing direction can be easily determined and the shape can be very easily written.
Further, the ink guide part 50, by a mechanism which liquid directly supplied, and which can be supplied ink to efficiently writing unit 4 5.

The present invention is not limited to the above-described embodiment, and can be modified into various forms without departing from the gist of the present invention.
In the present invention, the writing part is a non-contrast type, and the writing part is rotatable. Therefore, the structure other than this is not particularly limited. For example, ink to the writing part The supply mechanism is not particularly limited, and in the writing instrument A of the above embodiment, the ink from the ink occlusion body 20 is transferred to the relay porous body 30, the gap portion 48, the convex portion 49a, the ink guiding portion 50 of the holding body 55, and the pen core 45. However, the ink supply may be performed by omitting the gap portion 48 and the convex portion 49a without providing the gap portion 48 and the convex portion 49a.

Further, as shown in FIG. 8, the ink from the ink storage body 20 is relayed by the relay porous body 30, and the ink guide core 51 is stored in the ink guide portion 50, and the ink from the ink storage body 20 is relayed. The porous body 30, the ink guide core 51 in the ink guide section 50, and the pen core 45 may be configured to be continuously supplied by capillary action. In FIG. 8, the same components as those in FIGS. 1 to 7 are denoted by the same reference numerals, and the description thereof is omitted.
In the writing instrument A of the above embodiment, the shaft tube of the writing instrument body is formed as an elliptical axis, but it may be formed in a deformed shape such as a triangular shape or a quadrilateral or more. In particular, it is possible to easily adjust the orientation of the writing part that becomes the pen tip at an arbitrary position where writing is easy even if it is an elliptical shaped shaft cylinder etc. in which the way of holding the writing instrument body is fixed, When writing, a writing instrument having a structure in which the writing unit does not rotate is provided.

Furthermore, the structure of the pen tip serving as the writing unit may be, for example, the structure shown in FIG. 9 and FIG. 10 to be described later, the same components as those in the above-described embodiments of FIGS. 1 to 8 are denoted by the same reference numerals, and the description thereof is omitted.
FIG. 9 shows a conventional pen tip 70 in which a pen nib is a relay porous body and a pen core serving as a writing unit is integrated.
The pen tip 70 having this structure has a structure in which the ink from the ink occluding body 20 can be continuously supplied to the relay porous body 71 and the pen core 72 serving as a writing portion by capillary action. Further, a holding body 75 for fitting and holding the pen tip 70 is fitted to the tip shaft portion 15 in the same manner as in the above embodiment. The holding body 75 includes a pen core holding portion 76 that holds the pen core 72, a fitting hole 77 that fits and holds the relay porous body 71, and a fitting portion provided in the fitting portion 18 of the front shaft 15 at the outer periphery of the rear end of the holding body. A fitting projection 78 for fitting to 18a is provided.
In the writing instrument B of this form, the pen tip 70 is fitted on the outer peripheral surface on the rear end side of the holding body 75 so as to be fitted into a fitting portion 18 a provided in the fitting portion 18 of the tip shaft 15 of the writing tool body 10. Since the mating protrusion 78 is provided, when the relay porous body 71 of the pen tip 70 is fitted into the fitting part 18 of the tip shaft 15, the fitting protrusion 78 is fitted and attached to the fitting part 18a. Will be. In this embodiment, since the fitting shape of the fitting protrusion 78 and the fitting portion 18a are both annular (circular), the outer peripheral surface of the pen core holding portion 76 of the holding body 75 made of a resin molded product is used. When rotated by hand, the pen core 72 serving as a writing part can be easily rotated 360 °, the position of the pen core 72 can be arbitrarily adjusted as in the embodiment of FIG. 1, and at the time of writing Since the fitting is performed with a fitting force (fixing force) equal to or higher than the writing pressure at the time of writing, the pen core 72 serving as a writing unit is a writing instrument having a structure that does not rotate. The adjustment of the fitting force is the same as in the above embodiment.

Further, FIG. 10 shows that the front shaft 15 has two fitting portions as shown in FIG. 10A, specifically, the first inner portion on the inner peripheral surface of the fitting portion 18 from the entrance side. The fitting portion 18a and the second fitting portion 18b are provided on the rear end side.
Further, on the outer peripheral surface of the main body portion 42 of the nib 40, the first fitting portion 18a and the second fitting portion 18b provided on the fitting portion 18 of the tip shaft 15 corresponding to the two fitting portions are provided. A first fitting projection 42a and a second fitting projection 42b are provided for fitting each.
Even in the writing instrument having the two fitting parts, the pen tip 40 is provided on the outer peripheral surface of the main body part 42 with the first fitting part 18 a and the second fitting part 18 a provided on the fitting part 18 of the tip shaft 15 of the writing tool main body 10. Since the first fitting projection 42a and the second fitting projection 42b for fitting to the fitting portion 18b are provided, the main body portion 42 of the nib 40 is inserted into the fitting portion of the tip shaft 15. 18, the first fitting projection 42 a and the second fitting projection 42 b are fitted and attached to the first fitting portion 18 a and the second fitting portion 18 b, respectively. And since each fitting shape of the said 1st fitting protrusion 42a and the 1st fitting part 18a, and the 2nd fitting protrusion 42b and the 2nd fitting part 18b is both cyclic | annular (circle), When the holder 55 that is the outer peripheral surface of the writing unit 45 made of a resin molded product is rotated by hand, the writing unit 45 can be easily rotated 360 °, and the position of the writing unit 45 can be arbitrarily adjusted. In addition, since the fitting is performed with a fitting force (fixing force) equal to or higher than the writing pressure at the time of writing, the writing unit 45 becomes a writing tool having a structure that does not rotate. The adjustment of the fitting force is the same as in the above embodiment.

  The writing instrument of the present invention can be suitably used for a type of writing instrument called an underline pen, a paint marker, an oil marker, or an aqueous marker.

A writing instrument 10 writing instrument body 11 rear shaft 15 front shaft 20 ink occlusion body 30 relay porous body 40 pen tip 45 writing section 50 ink guide section 55 holder 60 cap body

Claims (3)

The tip of the writing part forms an inclined surface that is flat with respect to the center line of the writing instrument body, and the writing part has an ink guiding part for supplying ink from the writing instrument body, and is a resin molded product having visibility A writing instrument comprising a molded holding body, wherein the writing unit is rotatable through the holding body, and a body part serving as a writing tool body is a non-circular shaft . The holding body with a writing part can adjust the writing part to an arbitrary rotational position, and the fitting part with the writing instrument body is fitted with a fitting force greater than the writing pressure at the time of writing and does not rotate during writing The writing instrument according to claim 1, wherein: The writing instrument according to claim 1 or 2, wherein a fitting part between the holding body provided with the writing part and the writing instrument body has a first fitting part and a second fitting part .

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