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WO2001051293A1 - Stylo a bille - Google Patents

Stylo a bille Download PDF

Info

Publication number
WO2001051293A1
WO2001051293A1 PCT/JP2001/000125 JP0100125W WO0151293A1 WO 2001051293 A1 WO2001051293 A1 WO 2001051293A1 JP 0100125 W JP0100125 W JP 0100125W WO 0151293 A1 WO0151293 A1 WO 0151293A1
Authority
WO
WIPO (PCT)
Prior art keywords
tip
ball
ink
pen
writing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2001/000125
Other languages
English (en)
Japanese (ja)
Inventor
Hiroaki Koyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Pencil Co Ltd
Original Assignee
Mitsubishi Pencil Co Ltd
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 Mitsubishi Pencil Co Ltd filed Critical Mitsubishi Pencil Co Ltd
Priority to AU2001225505A priority Critical patent/AU2001225505A1/en
Publication of WO2001051293A1 publication Critical patent/WO2001051293A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K1/00—Nibs; Writing-points
    • B43K1/08—Nibs; Writing-points with ball points; Balls or ball beds
    • B43K1/086—Nibs; Writing-points with ball points; Balls or ball beds with resilient supporting means for the ball, e.g. springs

Definitions

  • the present invention relates to a ballpoint pen provided so that a writing ball is always pressed by an elastic body so as to be in close contact with a crimping inner surface on a tip end side, and the tip end ball functions as a valve for preventing ink leakage.
  • ball-point pens oil-based ball-point pens, water-based ball-point pens, and neutral ball-point pens have been used as ball-point pens.
  • the oil-based ballpoint pen is one in which high-viscosity (about 10,000 cp) ink containing a higher alcohol solvent as a main solvent is directly stored in an ink storage tube.
  • the water-based ballpoint pen is made by keeping an extremely low-viscosity (2 to 3 cp) ink containing water as a main solvent on a fiber bundle core called batting.
  • the neutral ball-point pen uses a medium-viscosity ink having a viscosity between oiliness and water-based and a so-called gel ink provided with pseudoplasticity.
  • the pen tip protrudes downward without storing the pen tip, or in a cap-type ball pen, the pen tip faces downward without capping.
  • problems such as the ball valve at the pen tip opening, ink leaking out, and the pen tip drying out making writing impossible.
  • the invention described in claim 1 of the present invention is characterized in that a writing ball rotatably fitted so as to protrude from the tip of a chip is attached to a tip of the writing ball.
  • the back end is controlled by the receiving seat to move forward and backward, respectively.
  • the writing ball, the pen tip having an ink hole for drawing out ink from the rear end, and the ink are stored inside.
  • M ⁇ F is added between the writing ball pressing force F (g) of the elastic body and the ball pen total weight M (g) including the refill. It is characterized by having.
  • the writing ball is pressed to the tip side by the elastic body, and the writing ball is pressed even when the ball point is set in a state where the pen tip is directed downward and the ball is exposed and stored in a pen stand or the like. Since it functions as a ball valve, it is possible to prevent ink from leaking from the pen tip, and further to prevent writing failure due to dry-up.
  • F is the writing ball pressing force at the time of mounting.
  • the invention described in claim 4 is characterized in that the caulking is performed such that the inner diameter portion of the tip of the tip presses the writing ball during the caulking.
  • a sealing surface of a constant width having substantially the same curvature as that of the writing ball is formed on the inner surface of the tip end by caulking. Therefore, when the writing ball is used as a ball valve, the sealing can be reliably performed.
  • the joint member is located between the tip and the refill
  • a check ball located at the rear end of the tip to block the passage to the tip and prevent the ink being refilled from flowing into the tip is inserted into the joint member. It is characterized by being provided in.
  • FIG. 1 is a longitudinal sectional view of a chip for showing a first embodiment of the present invention.
  • FIG. 2 is a longitudinal sectional view showing the structure of a ballpoint pen using the tip shown in FIG.
  • FIG. 3 is a longitudinal sectional view showing a pen tip of a ball pen for illustrating a second embodiment of the present invention.
  • FIGS. 1 to 3 show a tip and a ballpoint pen as a writing instrument using the present invention.
  • FIG. 1 is a detailed view of a pen point portion of a ball-point pen.
  • the chip 1 forms an ink hole Id and a receiving seat 1b for supporting the rear end of the writing ball by cutting, and then a plurality of channel grooves lc to secure an ink flow path. Is formed. Then, after the writing ball 2 is stored in the receiving seat 1b side of the chip 1, the tip 1 is formed by caulking 1a by caulking.
  • the writing ball 2 is prevented from falling out of the tip 1 by the caulking 1a at the front end side and by the seat 1b at the rear end side.
  • the writing pole 2 has a play in the longitudinal direction of the chip 1 between the caulking 1a and the receiving seat 1b.
  • a spring is shown at the rear end of the writing ball 2 as an elastic body 3 for pressing the writing ball 2 against the caulking 1a.
  • the elastic body 3 is formed such that the leading end thereof is prevented from coming off by the writing ball 2 and the rear end is prevented from coming off by caulking or a step at the rear end of the chip 1.
  • the tip can be formed of a metal such as stainless steel, brass, nickel silver, or plastic or the like.
  • the writing ball can be formed of ceramic, cemented carbide, stainless steel, or the like.
  • FIG. 2 shows a cursive type using the tip shown in FIG.
  • the above-described chip 1 is fixed to the joint 4, and the ink storage tube 9 is fixed to the joint 4.
  • a check ball 5 is located between the tip 1 and the joint 4.
  • the ink 6 is stored in the ink storage tube 9, and a follower 7, in which a follower rod 8 is positioned at one end, is filled on the side opposite to the chip 1.
  • check ball 5 If the check ball 5 is positioned vertically with tip 1 tip down, it will be located at the rear end of tip 1 to block the path to tip 1 and prevent ink 6 from flowing into tip 1. It works as if it were.
  • the ink 6 has a viscosity of 10 cp to 500 cp at 23 ° C. ⁇ 5 ° C. under general shearing force.
  • a low volatile solvent such as glycerin / propylene glycol
  • a pigment or dye as a coloring agent
  • other appropriate dispersants and gelling agents Preservatives, surfactants, lubricants and other various additives.
  • Ink 6 is also available in water-based, water-based, oil-based, non-volatile, high-grade alcohol-based, alcohol-based, lower alcohol-based, and It can be applied to various inks such as a correction liquid type based on a volatile solvent such as xane.
  • the follower 17 is made of a hard-to-react grease
  • the follower 8 is made of a material having a lower specific gravity or an apparent specific gravity than the ink 6.
  • a spring is used as the elastic body 3 with F ranging from 12 gf to 24 gf, and the total weight of the ball pen including the refill is M, 10 g and 12.4. g, 15.6 g were prepared and tested.
  • the ink 6 used had the following composition.
  • the ink used here was a neutral ink using 7% by weight of carbon black as a black pigment, 20% by weight of propylene glycol as a moisturizing wetting agent, 5% by weight of glycerin, and xanthan gum as a viscosity-imparting agent. 0.3% of a cross-linked acrylic acid polymer, an appropriate amount of a dispersant, a lubricant, a dustproofing / preservative, and a pH adjusting agent were blended, and the remainder was formed with water.
  • This ink was measured with an E-type rotational viscometer manufactured by Toki Sangyo Co., Ltd., and found to be 300 mPa ⁇ s at lO rpm and lOOmP at lOOrpm. a ⁇ s indicates ⁇ :.
  • the chip 1 and the joint 4 used had the following specifications.
  • Ink dropout is up to 1st sheet, 1st ink mark is up to 1mm
  • This embodiment is a detailed view of a pen tip portion of a needle type often used mainly for a low-viscosity aqueous ballpoint pen.
  • the writing ball 11 is rotatably positioned on the chip 10 with a vertical play in the front-rear direction.
  • An elastic body 12 is inserted into the tip 10 from the rear end of the tip so as to reach the writing ball 11, and the tip 10 presses the writing ball 11, and the tip 10 is subjected to plastic working from the outer surface of the tip 10. It is retained by the formed caulking 10a.
  • the elastic body 11 can be formed of a member having an appropriate elasticity such as a resin or the like and capable of guiding ink to the writing ball 11 by a capillary phenomenon.
  • the writing ball 11 is tightly sealed to the tip caulking 10b by the elastic body 12 when not in use, and the writing ball 12 is bent with the elastic body 12 bent during writing. Can be written by rotating
  • the writing ball 11 is tightly sealed to the tip caulking 10b by the elastic body 12b, so that contact direct current is prevented with the ball pen standing upright. Not only can it be done, but it can also prevent dry-up.
  • the writing ball is pressed to the front end side by the elastic body. Since the writing ball functions as a ball valve, it is possible to prevent the ink from leaking from the pen tip and to prevent writing failure due to dry-up.
  • the inner diameter of the tip of the tip is written at the time of crimping.
  • the tip when the joint member is positioned between the tip and the refill and the tip is positioned vertically with the tip end down, the tip is positioned at the rear end side. If the checkpoint ball is provided in the joint member to block the passage to the chip and prevent the ink during refilling from flowing into the chip, the ballpoint pen can be set up so that the tip is turned down. Since it becomes difficult for the ink to flow to the tip side, it is possible to further prevent ink leakage from the pen tip and also prevent writing from being performed due to dry-up.

Landscapes

  • Pens And Brushes (AREA)

Abstract

Stylo à bille comprenant une bille (2), une pointe possédant un orifice (1d) pour l'encre attirant l'encre (6) depuis l'extrémité arrière du stylo, un tube d'accumulation d'encre (9) jouant le rôle de réservoir pour l'encre (6), un passage (1c) constitué par une pluralité de rainures communiquant par l'intermédiaire d'un siège de support (1b) avec l'orifice (1d), ainsi qu'un corps élastique (3) monté de façon à exercer une pression sur la bille au niveau de la pointe du stylo de façon directe ou par l'intermédiaire d'un élément mobile intermédiaire. La bille (2) est fixée rotative et lâche, de façon à pouvoir sortir de l'extrémité de la pointe (1), son déplacement vers l'avant et vers l'arrière étant limité par un sertissage (1a) et par le siège de support (1b), ce qui permet de répondre au rapport M < F dans lequel la force de pression de la bille contre le corps élastique (3) représente F (g) et le poids total du stylo y compris une cartouche, représente M (g).
PCT/JP2001/000125 2000-01-13 2001-01-12 Stylo a bille Ceased WO2001051293A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001225505A AU2001225505A1 (en) 2000-01-13 2001-01-12 Ball-point pen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000004235A JP2005231033A (ja) 2000-01-13 2000-01-13 ボールペン
JP2000-4235 2000-01-13

Publications (1)

Publication Number Publication Date
WO2001051293A1 true WO2001051293A1 (fr) 2001-07-19

Family

ID=18533044

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2001/000125 Ceased WO2001051293A1 (fr) 2000-01-13 2001-01-12 Stylo a bille

Country Status (3)

Country Link
JP (1) JP2005231033A (fr)
AU (1) AU2001225505A1 (fr)
WO (1) WO2001051293A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011245841A (ja) * 2010-04-30 2011-12-08 Pilot Ink Co Ltd ボールペン
JP2012086479A (ja) * 2010-10-20 2012-05-10 Pilot Ink Co Ltd ボールペン

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0986090A (ja) * 1995-09-27 1997-03-31 Pilot Corp:The チップ先端部に弁機構を設けて成るボールペンレフィル
JPH09248991A (ja) * 1996-03-15 1997-09-22 Pilot Corp:The ボールペンレフィル
JPH10315678A (ja) * 1998-03-24 1998-12-02 Mitsubishi Pencil Co Ltd ボールペン

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07204567A (ja) * 1994-01-19 1995-08-08 Sailor Pen Co Ltd:The 塗布具
WO1999024266A1 (fr) * 1997-11-06 1999-05-20 Mitsubishi Pencil Kabushiki Kaisha Crayon a bille

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0986090A (ja) * 1995-09-27 1997-03-31 Pilot Corp:The チップ先端部に弁機構を設けて成るボールペンレフィル
JPH09248991A (ja) * 1996-03-15 1997-09-22 Pilot Corp:The ボールペンレフィル
JPH10315678A (ja) * 1998-03-24 1998-12-02 Mitsubishi Pencil Co Ltd ボールペン

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011245841A (ja) * 2010-04-30 2011-12-08 Pilot Ink Co Ltd ボールペン
JP2012086479A (ja) * 2010-10-20 2012-05-10 Pilot Ink Co Ltd ボールペン

Also Published As

Publication number Publication date
JP2005231033A (ja) 2005-09-02
AU2001225505A1 (en) 2001-07-24

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