JP2017094674A - Erasing tool and writing utensil with erasing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an erasing tool capable of erasing and changing color of multiple-width writing lines, and readily selecting and erasing multiple-width lines, and to provide a writing utensil with an erasing tool.SOLUTION: In the erasing tool capable of erasing writing, an erasing part 10 is formed into a polygonal shape and a barrel 14 mounted with the erasing part 10 has a shape similar to the erasing part 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an erasing tool and an erasing tool with a writing tool that can be effectively erased with respect to a drawn line written in a plurality of widths.

  Conventionally, there has been disclosed an erasing tool capable of erasing and discoloring two types of writing lines having a wide width and a narrow width (see Patent Documents 1 and 2).

JP 2013-95013 A JP 2014-177053 A

  However, in the techniques disclosed in Patent Documents 1 and 2, it is necessary to determine the handle direction of the shaft cylinder when switching the width, but it is not easy to determine the direction.

  Therefore, the present invention provides an erasing tool and an erasing tool with a writing tool that can erase and discolor a plurality of writing lines having a plurality of widths, and can easily select and erase a plurality of thicknesses.

The present invention, in an erasing tool capable of erasing the writing lines,
The erasing tool is characterized in that the erasing portion is formed in a polygonal shape, and the shaft cylinder on which the erasing portion is mounted has a similar shape to the erasing portion.

  In the present invention, it is preferable that the erasing unit is attached to a holding unit having visible permeability.

  The present invention is an erasing tool with a writing instrument, characterized in that the erasing portion is provided at one end of a shaft tube, and a writing portion capable of writing is provided at the other end of the shaft tube.

According to the erasing tool and the erasing tool with a writing tool of the present invention, since the erasing portion is formed in a polygonal shape, by selecting and using each side, it is possible to erase and discolor a plurality of writing lines of width, Since the shaft cylinder on which the erasing part is mounted has a similar shape to the erasing part, the side connected to each side of the polygon of the shaft cylinder is viewed from the outer surface, and each side of the erasing part similar to that is appropriately selected. Accordingly, it is possible to provide an erasing tool and an erasing tool with a writing tool that can easily erase a writing line by easily selecting an appropriate length of a plurality of sides having different lengths.
In the erasing tool with a writing tool, it is preferable to provide a side with an erasing width larger than the line width of the writing tool in the erasing portion because the erasing of the handwriting can be facilitated.

It is explanatory drawing of the erasing tool which concerns on 1st Embodiment of this invention, (a) is a perspective view from the front, (b) is sectional drawing which follows the BB line of (e), (c) is from the front (D) is a side view of the state rotated 90 ° from the state of (c), (e) is a side view of the state of (c), (f) is a perspective view from the rear, (g) ) Is a rear view. It is explanatory drawing of the erasing tool which concerns on 2nd Embodiment of this invention, (a) is a perspective view from the front, (b) is sectional drawing which follows the BB line of (e), (c) is from the front (D) is a side view of the state rotated 90 ° from the state of (c), (e) is a side view of the state of (c), (f) is a perspective view from the rear, (g) ) Is a rear view. It is explanatory drawing of the eraser with a writing instrument which concerns on 3rd Embodiment which combined the writing instrument with 2nd Embodiment, (a) is a perspective view from the other side (erasing part side), (b) is a side view, (c) ) Is a side view of the state rotated 90 ° from the state of (b), and (d) is a perspective view from the back (writing part side).

  Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an erasing tool according to the first embodiment.
As shown in FIG. 1, the erasing tool according to the first embodiment can erase three or more types of line width writing by the erasing unit 10.

  Specifically, the erasing unit 10 has a deformed hexagonal bar shape of a different hexagonal shape in which the length (width) of a pair of sides is the same and the lengths of adjacent sides are different, and writing (drawing lines, handwriting, etc.) In the erasing, the erasing tool 12 can be erased with different line widths by applying any side of the erasing unit 10 to the writing surface.

  In the erasing tool 12, the erasing unit 10 is attached to the distal end (tip portion 14 a) of the axial tube 14 formed in a deformed hexagonal shape (an example of a polygonal shape) having a similar cross-sectional shape to the erasing unit 10. Is attached through.

  Further, the erasing part 10 is mounted and fixed to the tip of an axially long holding part 16 having visible permeability, and the erasing part 10 is formed in the same cross-sectional shape as the hexagonal shape different from the holding part 16. Has been.

  FIG. 2 shows an erasing tool according to the second embodiment.

In the erasing tool 12 according to the second embodiment, the erasing portion 10 is formed long in the axial direction, does not have the holding portion 16 as described above, and the axial erasing portion 10 is at the tip (tip portion 14a) of the shaft tube 14. It is fixed.
Since the erasing unit 10 according to the first embodiment has a larger volume compared to the case where the holding unit of the first embodiment is present, even if the erasing unit 10 is reduced by use, the volume is large. Longer than that, many erasures are possible.

[Common to all embodiments]
The erasing tool according to the first and second embodiments is not shown in FIGS. 1 and 2, but by attaching the cap to the tip of the shaft tube 14, the erasing unit 10 that has many erasing units 10 can be stained. Can be prevented.

  As shown in FIGS. 1 and 2, the erasing unit 10 has a polygonal shape such as a hexagonal shape so that a plurality of drawn lines can be selected and drawn. Multiple strokes can be deleted with a single line.

  As shown in FIGS. 1 and 2, the cross-sectional shape of the erasing unit 10 can be a polygonal shape having a plurality of angles such as a triangle and a hexagon.

  Further, it is preferable that the cross-sectional shape is “type of writing width × 2” and the sides having the same writing width are parallel to each other. For example, in FIG. 1B, the sides having the same writing width are denoted by reference numerals 10a, 10b, and 10c. The eraser of the first and second embodiments has the same shape of the shaft tube 14. In FIG. 1C, sides having the same width on the outer surface of the shaft tube 14 are denoted by reference numerals 141, 142, and 143. Accordingly, referring to FIGS. 1B and 1C, the sides 10a, 10b, and 10c of the erasing unit 10 correspond to the sides 141, 142, and 143 of the shaft tube 14, and the erasing unit 10 is an axis. Is it understood to be similar to the cylinder 14?

  The holding part 16 of the first embodiment preferably has the same cross section as the erasing part 10. The holding part 16 is preferably formed of a highly transmissive material such as acrylic, ABS, or glass so that the erasing part 10 can be easily seen.

  Letters and numbers for recognizing the erase width may be added to the surface of the shaft tube 14.

  Further, the end portion of the shaft tube 14 is formed into a cylindrical shape with a small diameter (tip portion 14a), in which the erasing unit 10 is held in the first embodiment, and the holding unit 16 is held in the second embodiment. Yes.

  The material of the erasing unit 10 of the erasing tool 12 can be erased by friction with the paper surface, and rubber materials such as silicone rubber, nitrile rubber, ethylene propylene rubber, ethylene propylene diene rubber, styrene elastomer, olefin elastomer, polyester Rubber elastic materials such as thermoplastic elastomers such as thermoplastic elastomers, a mixture of two or more rubber elastic materials, and a mixture of a rubber elastic material and a synthetic resin. In particular, it is formed from a mixture of a polypropylene resin and a styrenic thermoplastic elastomer, or a mixture of a polypropylene resin and a polypropylene thermoplastic elastomer, and the blending ratio is 1: 1 to 1: 4 by weight, respectively. It is made of a material that does not contain a filler and has a durometer hardness A specified in JIS K6251 of 70 ° to 100 °, and has a pencil drawing erasing ability (erasure rate) specified in JIS S 6050-2002 of 70%. A low-abrasion rubber elastic material that does not contain a plasticizer is preferable as follows.

  The low wear property mentioned here is formed from a material indicating that the taper wear amount in JIS K7204 test method H22 is less than 15 mg. As a result, the eraser is less likely to be erased when scraped.

FIG. 3 shows an erasing tool with a writing tool according to the third embodiment.
In 3rd Embodiment, it is set as the erasing tool with a writing tool provided with the erasing part 10 which concerns on the said 1st and 2nd embodiment at one end seeing to an axial direction, and the writing part 18 which can write in the other end. The erasing unit 10 is fixed to the shaft tube 14 as in the second embodiment, but the erasing unit 10 may be provided at the tip of the holding unit 16 as in the first embodiment. Moreover, in 3rd Embodiment, the same code | symbol is attached | subjected to the part similar to 1st, 2nd embodiment.

  The erasing unit 10 may be supplemented with a color that is substantially the same color as the ink color of the writing instrument (writing unit 18) or a lightness lower than the ink color (black is preferable), and may be easily visible.

The writing unit 18 can be configured to apply and write ink by inducing and impregnating ink into a polygonal pen core.
In addition, the writing unit 18 may be provided at the tip of the holding unit as in the first embodiment, and may have an ink guide tube in the holding unit. In this case, the ink guide tube is used as the pen core of the writing unit 18. It is preferable to arrange in the axial center.

  The pen core of the writing unit 18 has a marking pen core such as a sintered body or a fiber bundle.

  Further, the erasing unit 10 is preferable because the erasing width becomes larger than the corresponding handwriting width by making the cross-sectional shape similar to that of the writing unit 18 and larger than the writing unit 18.

  The ink contained in the writing instrument (such as in the ink tank 14b in the shaft tube 14) is a thermal ink composition for writing instruments containing at least developer particles composed of a leuco dye, a developer, and a crystalline substance as a colorant. In addition to the colorant, the thermosensitive decolorizable ink for writing instruments comprising a decolorant comprising an amorphous resin having a glass transition temperature (Tg) of 30 to 90 ° C. Ink) compositions are preferred.

  The above is a heat-sensitive ink that can be erased by frictional heat or the like, but may be an eraser erasable ink that can be erased by rubbing with an eraser or the like.

  In addition, this invention is not limited to the said embodiment, A deformation | transformation implementation can be carried out within the scope of the present invention. For example, the erasing portion and the shaft tube are not limited to the irregular hexagonal cross section, but may be an irregular triangular cross section, quadrangular, pentagonal, heptagonal cross sectional shape. Further, each side may or may not include the same length side, but if all sides have different lengths, it is possible to write and erase handwriting with various widths, which is preferable.

  Since the eraser and the eraser with a writing tool of the present invention have a polygonal shape, it is possible to erase and change the writing lines of a plurality of widths by selecting and using each side. Since it has a similar shape, it can be used as an erasing tool capable of easily selecting and erasing a plurality of drawn lines having a thickness and an erasing tool with a writing tool.

DESCRIPTION OF SYMBOLS 10 Erasing part 12 Erasing tool 14 Shaft 16 Holding part 18 Writing part

Claims (3)

In an erasing tool that can erase written lines,
An erasing tool, wherein the erasing part is formed in a polygonal shape, and the shaft cylinder on which the erasing part is mounted has a similar shape to the erasing part.   The erasing tool according to claim 1, wherein the erasing unit is attached to a holding unit having visible permeability.   An erasing tool with a writing instrument, comprising an erasing unit according to claim 1 or 2 at one end of a shaft tube, and a writing unit capable of writing at the other end of the shaft tube.

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