WO2017098808A1 - 筆記具 - Google Patents

筆記具 Download PDF

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Publication number
WO2017098808A1
WO2017098808A1 PCT/JP2016/080695 JP2016080695W WO2017098808A1 WO 2017098808 A1 WO2017098808 A1 WO 2017098808A1 JP 2016080695 W JP2016080695 W JP 2016080695W WO 2017098808 A1 WO2017098808 A1 WO 2017098808A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer peripheral
flat surface
peripheral surface
surface area
writing
Prior art date
Application number
PCT/JP2016/080695
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雅子 柳井
将史 吉川
欣也 松下
Original Assignee
コクヨ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コクヨ株式会社 filed Critical コクヨ株式会社
Priority to KR1020187010694A priority Critical patent/KR102510201B1/ko
Priority to CN201680062387.0A priority patent/CN108349295B/zh
Publication of WO2017098808A1 publication Critical patent/WO2017098808A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K3/00—Nib holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/008—Holders comprising finger grips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K3/00—Nib holders
    • B43K3/04—Nib holders with retractable nibs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/12—Ball-point pens with retractable ball points

Definitions

  • the present invention relates to a writing instrument in which a writing core embodying a function for writing is accommodated in a barrel.
  • a ballpoint pen and a mechanical pencil are well known as representative examples of this type of writing instrument.
  • a ballpoint pen is one in which a refill equipped with a writing mechanism section including a ball for transferring ink to paper etc. is attached to a tip end portion of a container filled with ink as a writing core in a shaft cylinder and the writing mechanism section is an axis It projects from the tip of the tube.
  • a mechanical pencil incorporates a mechanism for drawing out a pencil lead, which is a writing lead, in a shaft cylinder.
  • the shape of the outer peripheral surface of the barrel held by the fingers of the user is often cylindrical, but there are also those having a hexagonal shape in cross-sectional view and those having a triangular shape in cross-sectional view like traditional pencils (See, for example, Non-Patent Document 1 below).
  • a recessed portion which is recessed toward the axial center of the axial cylinder is formed in a predetermined portion of the cylindrical cylinder having a cylindrical outer shape (see, for example, Patent Document 1 below).
  • the present invention is intended to provide a writing instrument in which the direction and posture of the barrel are stable and writing is easy even if the user does not put force on the fingers manually.
  • the barrel held by the fingers of the user is continuous with the rear extending along the axial direction and the front of the rear and extends along the axial direction, and the user's fingers on the outer peripheral surface
  • a writing instrument comprising: a front portion having a large curved surface area; and a tip portion having a tapered shape continuous with the front of the front portion and having a writing tip for projecting.
  • the flat surface area in the outer peripheral surface of the front portion and the outer peripheral surface of the tip end portion be continuous in a convex curved shape.
  • the curved surface area of the outer peripheral surface of the front portion may be substantially flush with the outer peripheral surface of the rear portion except for a portion connected to the flat surface region. In this case, it is possible to create an appearance that is continuous from the rear to the front in the barrel, and to enhance the appearance and appearance as a writing instrument.
  • the outer diameter of the front portion regardless of the size of the outer diameter of the rear portion of the barrel It becomes easy to design in the optimal size which adapts to the user's finger.
  • the front can be made thicker than the rear.
  • the flat surface area of the front is the outer peripheral surface of the rear
  • the outer peripheral surface of the rear does not project more than the flat surface area of the front, so that the user can easily hold the cylinder by using the rear part of the cylinder. Less pressure on the base of the index finger of the person.
  • the perspective view of the writing instrument of 1st embodiment of this invention The top view of the writing instrument of the embodiment.
  • the front view of the writing instrument of the embodiment. The AA line sectional view of the writing instrument of the embodiment.
  • the perspective view of the writing instrument of 2nd embodiment of this invention. The top view of the writing instrument of the embodiment.
  • the front view of the writing instrument of the embodiment The CC sectional view taken on the line of the writing instrument of the embodiment.
  • the writing instrument of the present embodiment shown in FIGS. 1 to 6 is a rear end knock type ballpoint pen.
  • This writing instrument has a writing core for embodying the function for writing, the barrel 1 held by the user's finger when writing by the user, and a knock bar disposed on the rear end side of the barrel 1 3 is equipped with a knock mechanism for causing the tip end of the writing tip 2, that is, the tip end portion of the writing core to protrude and retract from the front end (tip end) side of the barrel 1 by knock operation.
  • the barrel 1 accommodates the writing core and the knock mechanism therein.
  • the writing core is a refill in which the writing mechanism unit 2 having a ball for transferring the ink to paper or the like is attached to the tip end portion of the container filled with the ink.
  • the knock mechanism causes the writing mechanism 2 as the brush tip to protrude from the barrel 1 in response to the depression of the knocking rod 3 and causes the writing mechanism 2 projecting from the barrel 1 to receive the depression of the knocking rod 3 again. It is a khan type knock mechanism which has been well known in the prior art to be inserted into the barrel 1.
  • the barrel 1 has a hollow cylindrical rear shaft 11 and a front shaft 12 which are extended along the axial center L direction so that the writing core can be inserted therein.
  • One of the front end of the rear shaft 11 and the rear end of the front shaft 12 is provided with a male screw, and the other is provided with a female screw hole, and the male screw is screwed into the female screw hole.
  • the shaft 12 is coupled to form an integral cylinder 1.
  • the front shaft 12 is obtained by covering an outer periphery of a cylindrical base body 121 with an exterior body 122 in direct contact with the user's finger.
  • the cylinder 1 of the writing instrument in the present embodiment includes a rear portion 13 extending along the axial center L direction, a front portion 14 connected to the front of the rear portion 13 and extending along the axial center L direction, and a front portion of the front portion 14 It has a tapered tapered tip portion 15 whose diameter becomes smaller as it goes forward.
  • Most of the rear portion 13 is formed by the rear shaft 11, while the front end portion of the rear portion 13, the front portion 14 and the tip portion 15 are formed by the front shaft 12.
  • the writing mechanism 2 of the writing core protrudes from the tip 15 thereof.
  • the outer peripheral surface of the rear portion 13 is generally cylindrical.
  • a single flat surface area 141 and a curved surface area 142 other than the flat surface area 141 exist on the outer peripheral surface of the front portion 14.
  • the flat surface area 141 is a portion on the outer peripheral surface of the front portion 14 in contact with the user's fingers, and has a substantially flat surface shape extended parallel or substantially parallel to the axial center L direction.
  • the flat surface area 141 is not a completely flat surface, and is separated from the axial center L of the barrel 1 (or writing instrument). In the direction of (3).
  • a convex curved surface is a curved surface in which a line segment connecting any two points on the curved surface along the curved surface in the shortest path is outside the straight line connecting these two points or is equal to such a straight line Say.
  • the convex curved surface is a curved surface in which there is no recess recessed toward the axial center L of the barrel 1.
  • the flat surface area 141 may be formed into a completely flat surface.
  • the flat surface area 141 of the outer peripheral surface of the front portion 14 is continuous with the outer peripheral surface of the truncated conical tip 15 so as to form a convex curved surface, and the flat surface area 141 and the outer peripheral surface of the front end 15 There is no recess recessed toward the axial center L of the barrel 1 at the boundary portion.
  • the contour 141 a of the flat surface area 141 in the side view shown in FIG. 3 (the state seen from the side orthogonal to the direction of the planar view in which the flat surface area 141 looks the largest as shown in FIG.
  • the contour 15a of the outer peripheral surface of the tip portion 15 are continuous so as to form a convex curve.
  • a convex curve refers to a curve in which a portion of the curve connecting any two points on the curve is outside or equal to a straight line connecting the two points.
  • the contour 141 a of the flat surface area 141 of the outer peripheral surface of the front portion 14 forms a straight line or a substantially straight convex curve parallel or substantially parallel to the axis L direction. There is. That is, a line segment connecting any two points on the outline 141a in the shortest route along the outline 141a is outside or equal to a straight line connecting the two points. That is, the flat surface area 141 does not include a recess recessed toward the axial center L of the barrel 1 inside.
  • the contour 141a of the flat surface area 141 of the outer peripheral surface of the front portion 14 and the contour 13a of the outer peripheral surface of the rear portion 13 form a substantially straight line, and the difference between the former and the latter is small.
  • the contour 141 a of the flat surface area 141 of the outer circumferential surface of the front portion 14 is positioned slightly inward (closer to the axial center L of the cylinder 1) than the contour 13 a of the outer circumferential surface of the rear portion 13
  • this is to make the oval peripheral edge of the flat surface area 141 a beautiful shape in a plan view shown in FIG.
  • the outer peripheral surfaces of the flat surface area 141 and the rear portion 13 are made so that the contour 141a of the flat surface area 141 of the outer peripheral surface of the front portion 14 and the contour 13a of the outer peripheral surface of the rear portion 13 form a straight line completely in side view. It may be molded.
  • the curved surface area 142 of the outer peripheral surface of the front portion 14 is a curved surface having a curvature larger than that of the flat surface area 141. Furthermore, as shown in the cross-sectional view taken along the line B-B in FIG. 6, the curved surface area 142 is substantially flush with the outer peripheral surface of the rear portion 13 except for the portion 142 a connected to the flat surface area 141. . That is, the curved surface area 142 is a partial cylindrical surface which is continuous with the outer peripheral surface of the rear portion 13 except for the connecting portion 142 a and whose outer diameter is equal to the outer diameter of the outer peripheral surface of the rear portion 13.
  • the portion 142 a of the curved surface area 142 connected to the planar view area bulges outward more than the outer peripheral surface of the rear portion 13.
  • This is a shape for enlarging the width dimension of the flat surface area 141 while aligning the thickness of the front portion 14 of the barrel 1 with the thickness of the rear portion 13.
  • the line of intersection between the cut surface orthogonal to the axial center L of the barrel 1 and the curved region 142 (a contour corresponding to the outer peripheral surface of the curved region 142 in a cross sectional view) is Except for the connecting portion 142a described above, it has a true arc shape.
  • the barrel 1 held by the finger of the user is continuous with the rear portion 13 extending along the axial center L direction and the front of the rear portion 13 and extends along the axial center L direction.
  • a single flat surface area 141 which is a flat surface or a convex surface having a substantially flat surface and extends parallel or substantially parallel to the direction of the axial center L is formed at the portion where the user's fingers in the surface meet.
  • a curved surface area 142 having a curvature larger than that of the flat surface area 141, and a tip portion 15 which is continuous with the front of the front portion 14 and forms a tapered shape and causes the writing tip 2 to protrude
  • the writing instrument was equipped with.
  • any of the thumb, forefinger or middle finger of the user holding the writing instrument has the flat surface area 141 of the front portion 14 of the barrel 1. , And the remaining two fingers are in contact with the curved area 142.
  • the relative orientation and posture of the barrel 1 to the user's finger are stabilized, and it becomes possible to write by holding this with light force.
  • the flat surface area 141 on the outer peripheral surface of the front portion 14 and the outer peripheral surface of the tip portion 15 are continuous in a convex curved shape, and a recess is present at the boundary portion between the flat surface region 141 and the outer peripheral surface of the tip portion 15 Therefore, for a user having a portion close to the tip end portion 15 of the barrel 1, the position at which the barrel 1 is gripped with fingers can be flexibly changed without a sense of discomfort. Therefore, it becomes a highly convenient writing instrument which can respond to an individual difference.
  • the curved surface area 142 in the outer peripheral surface of the front portion 14 is substantially flush with the outer peripheral surface of the rear portion 13 except for the portion 142 a connected to the flat surface region 141, Up to 14 can create a consistent and continuous appearance, and can enhance the dignity and aesthetics of a writing instrument.
  • the front 14 is flat.
  • the surface area 141 is not largely recessed with respect to the outer peripheral surface of the rear portion 13.
  • the outer peripheral surface of the rear portion 13 does not project larger than the flat surface area 141 of the front portion 14.
  • the outer shape of the front portion 14 of the barrel 1 is modified from the first embodiment.
  • the configuration unique to this embodiment will be described.
  • the writing core, the knocking mechanism, and the like can be configured in the same manner as the first embodiment (further, the existing writing instrument), and thus the description will be omitted here.
  • the writing instrument of the present embodiment is a knock type ballpoint pen similar to the first embodiment.
  • the barrel 1 of the writing instrument also has a rear portion 13 extending along the axial center L direction, a front portion 14 extending forward of the rear portion 13 extending along the axial center L direction, and a front portion extending forward of the front portion 14 And a tapered tapered tip portion 15 whose diameter decreases in the direction of.
  • Most of the rear portion 13 is formed by the rear shaft 11, while the front end portion of the rear portion 13, the front portion 14 and the tip portion 15 are formed by the front shaft 12.
  • the writing mechanism 2 which is a writing tip of the writing core protrudes from the tip 15 thereof.
  • the outer peripheral surface of the rear portion 13 is generally cylindrical.
  • a single flat surface area 141 and a curved surface area 142 other than the flat surface area 141 exist on the outer peripheral surface of the front portion 14.
  • the flat surface area 141 is a portion on the outer peripheral surface of the front portion 14 in contact with the user's fingers, and has a substantially flat surface shape extended parallel or substantially parallel to the axial center L direction.
  • the flat surface area 141 is not a perfect flat surface, but is a convex curved surface which bulges slightly outward.
  • the flat surface area 141 may be formed into a completely flat surface.
  • the flat surface area 141 of the outer peripheral surface of the front portion 14 is continuous with the outer peripheral surface of the truncated conical tip 15 so as to form a convex curved surface, and the flat surface area 141 and the outer peripheral surface of the front end 15 There is no recess recessed toward the axial center L of the barrel 1 at the boundary portion.
  • the contour 141a of the flat surface area 141 and the contour 15a of the outer peripheral surface of the distal end portion 15 are continuous so as to form a convex curve.
  • the contour 141a of the flat surface area 141 of the outer peripheral surface of the front portion 14 forms a straight line or a substantially straight convex curve parallel or substantially parallel to the axis L direction. There is. That is, a line segment connecting any two points on the outline 141a in the shortest route along the outline 141a is outside or equal to a straight line connecting the two points. That is, the flat surface area 141 does not include a recess recessed toward the axial center L of the barrel 1 inside.
  • the contour 141a of the flat surface area 141 of the outer peripheral surface of the front portion 14 and the contour 13a of the outer peripheral surface of the rear portion 13 form a substantially straight line, and the difference between the former and the latter is small.
  • the contour 141a of the flat surface area 141 of the outer circumferential surface of the front portion 14 is positioned slightly inward of the contour 13a of the outer circumferential surface of the rear portion 13, but this is the plan view shown in FIG. In order to make the oval peripheral edge of the flat surface area 141 a beautiful shape.
  • the outer peripheral surfaces of the flat surface area 141 and the rear portion 13 are made so that the contour 141a of the flat surface area 141 of the outer peripheral surface of the front portion 14 and the contour 13a of the outer peripheral surface of the rear portion 13 form a straight line completely in side view. It may be molded.
  • the curved surface area 142 of the outer peripheral surface of the front portion 14 is a curved surface having a curvature larger than that of the flat surface area 141. Furthermore, as shown in the cross-sectional view taken along the line DD in FIG. 12, the curved region 142 bulges outward more than the outer peripheral surface of the rear portion 13, and except for the front end portion connected to the tip portion 15, The outer diameter of the region 142 is larger than the outer diameter of the outer peripheral surface of the rear portion 13. More specifically, the diameter of the curved surface region 142 gradually increases in the forward direction from the rear end connected to the outer peripheral surface of the rear portion 13 and reaches a maximum diameter halfway through.
  • the diameter of the curved surface area 142 becomes smaller as it gets closer to the front end 15, and the diameter at the front end of the curved surface area 142 becomes equal to the diameter of the rear end of the front end 15.
  • the intersection line between the cut surface orthogonal to the axis L of the barrel 1 (or the writing instrument) and the curved region 142 (corresponding to the outer peripheral surface of the curved region 142 in cross section) Contour) has a true arc shape.
  • the barrel 1 held by the finger of the user is continuous with the rear portion 13 extending along the axial center L direction and the front of the rear portion 13 and extends along the axial center L direction.
  • a single flat surface area 141 which is a flat surface or a convex surface having a substantially flat surface and extends parallel or substantially parallel to the direction of the axial center L is formed at the portion where the user's fingers in the surface meet.
  • a curved surface area 142 having a curvature larger than that of the flat surface area 141, and a tip portion 15 which is continuous with the front of the front portion 14 and forms a tapered shape and causes the writing tip 2 to protrude
  • the writing instrument was equipped with.
  • any of the thumb, forefinger or middle finger of the user holding the writing instrument has the flat surface area 141 of the front portion 14 of the barrel 1. , And the remaining two fingers are in contact with the curved area 142.
  • the relative orientation and posture of the barrel 1 to the user's finger are stabilized, and it becomes possible to write by holding this with light force.
  • the flat surface area 141 on the outer peripheral surface of the front portion 14 and the outer peripheral surface of the tip portion 15 are continuous in a convex curved shape, and a recess is present at the boundary portion between the flat surface region 141 and the outer peripheral surface of the tip portion 15 Therefore, for a user having a portion close to the tip end portion 15 of the barrel 1, the position at which the barrel 1 is gripped with fingers can be flexibly changed without a sense of discomfort. Therefore, it becomes a highly convenient writing instrument which can respond to an individual difference.
  • the curved surface area 142 in the outer peripheral surface of the front portion 14 bulges outward more than the outer peripheral surface of the rear portion 13, regardless of the size of the outer diameter of the rear portion 13 of the barrel 1, Not only it becomes easy to design the outer diameter to an optimal size that fits the user's hand, but it also becomes possible to make the exterior design of the writing instrument innovative.
  • the front 14 is flat.
  • the surface area 141 is not largely recessed with respect to the outer peripheral surface of the rear portion 13.
  • the outer peripheral surface of the rear portion 13 does not project larger than the flat surface area 141 of the front portion 14.
  • the aspect of the writing instrument is not limited to a ballpoint pen.
  • the writing core is not necessarily the refill of the ballpoint pen.
  • the writing core is provided with a mechanism for transferring the ink to paper or the like at the tip of the container filled with the ink.
  • the mechanism is the brush tip.
  • the writing core is a pencil core, and a mechanism for drawing out the writing core and causing it to protrude from the tip of the barrel is accommodated in the barrel together with the writing core.
  • the unevenness having a width or diameter of 1 mm or less which is significantly finer than the thickness of the user's finger and the size of the finger node It does not prevent the provision of grooves, holes, etc.
  • the present invention can be applied to a writing instrument in which a writing core embodying a function for writing is accommodated in a barrel.

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
PCT/JP2016/080695 2015-12-07 2016-10-17 筆記具 WO2017098808A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020187010694A KR102510201B1 (ko) 2015-12-07 2016-10-17 필기구
CN201680062387.0A CN108349295B (zh) 2015-12-07 2016-10-17 书写用具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015238897A JP6657886B2 (ja) 2015-12-07 2015-12-07 筆記具
JP2015-238897 2015-12-07

Publications (1)

Publication Number Publication Date
WO2017098808A1 true WO2017098808A1 (ja) 2017-06-15

Family

ID=59012998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/080695 WO2017098808A1 (ja) 2015-12-07 2016-10-17 筆記具

Country Status (4)

Country Link
JP (1) JP6657886B2 (ko)
KR (1) KR102510201B1 (ko)
CN (1) CN108349295B (ko)
WO (1) WO2017098808A1 (ko)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5084114U (ko) * 1973-12-01 1975-07-18
JPS60178173U (ja) * 1984-05-08 1985-11-26 竹内　政野 筆記具
JPH11277971A (ja) * 1998-03-31 1999-10-12 Pilot Corp 軸筒の製造方法およびその製造方法により製造した軸筒
JP2002096594A (ja) * 2000-09-26 2002-04-02 Kotobuki:Kk 軸筒用グリップカバー

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000071674A (ja) * 1998-08-28 2000-03-07 Kotobuki:Kk 筆記具
JP4218497B2 (ja) 2003-11-06 2009-02-04 コクヨ株式会社 筆記具

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5084114U (ko) * 1973-12-01 1975-07-18
JPS60178173U (ja) * 1984-05-08 1985-11-26 竹内　政野 筆記具
JPH11277971A (ja) * 1998-03-31 1999-10-12 Pilot Corp 軸筒の製造方法およびその製造方法により製造した軸筒
JP2002096594A (ja) * 2000-09-26 2002-04-02 Kotobuki:Kk 軸筒用グリップカバー

Also Published As

Publication number Publication date
JP2017105004A (ja) 2017-06-15
JP6657886B2 (ja) 2020-03-04
KR102510201B1 (ko) 2023-03-16
KR20180090248A (ko) 2018-08-10
CN108349295B (zh) 2020-07-17
CN108349295A (zh) 2018-07-31

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