WO2011024834A1 - Pointe de stylo à bille - Google Patents

Pointe de stylo à bille Download PDF

Info

Publication number
WO2011024834A1
WO2011024834A1 PCT/JP2010/064334 JP2010064334W WO2011024834A1 WO 2011024834 A1 WO2011024834 A1 WO 2011024834A1 JP 2010064334 W JP2010064334 W JP 2010064334W WO 2011024834 A1 WO2011024834 A1 WO 2011024834A1
Authority
WO
WIPO (PCT)
Prior art keywords
ball
ink
writing
ball house
tip
Prior art date
Application number
PCT/JP2010/064334
Other languages
English (en)
Japanese (ja)
Inventor
飛沙則 柳
Original Assignee
三菱鉛筆株式会社
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 三菱鉛筆株式会社 filed Critical 三菱鉛筆株式会社
Publication of WO2011024834A1 publication Critical patent/WO2011024834A1/fr

Links

Images

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
    • B43K1/084—Ball beds
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/02—Ink reservoirs; Ink cartridges

Definitions

  • the present invention relates to a ballpoint pen tip in which the volume of a ball house for storing writing balls is further reduced.
  • Ballpoint pen tips are usually provided with a ball house for storing writing balls in the internal space at the tip.
  • a portion of the ball house excluding the space occupied by the writing ball is an ink reservoir in which the ink fed from the rear ink flow path temporarily stops.
  • the ink staying in the ink reservoir adheres to the surface of the writing ball as the writing ball rotates due to friction with the writing surface, and is transferred to the writing surface, whereby a drawn line is formed.
  • the volume of the ink reservoir depends on the viscosity of the ink used and the size of the writing ball. In general, if this volume is too small, the amount of ink ejected is insufficient and the drawn lines become blurred. On the other hand, if the volume is too large, the amount of ink discharged becomes excessive, and more ink than necessary is dropped on the drawn lines.
  • Patent Document 1 As a conventional technique related to the shape of the ball house, there is one described in the following Patent Document 1 by the applicant.
  • an annular connecting surface is provided in the corner portion.
  • ink hole penetrating between the so-called back hole penetrating the inside of the ballpoint pen tip from the rear end direction to the vicinity of the ball house and the ball house As a conventional technique related to the shape of the ball house, there is one described in the following Patent Document 1 by the applicant.
  • an annular connecting surface is provided in the corner portion.
  • the ink holes are always closed at the rear end portion of the writing ball housed in the ball house.
  • the connecting surface provided at the corner portion is merely for smoothly connecting the boundary between the inner surface and the bottom surface of the ball house, and the channel groove is formed on the bottom surface portion excluding the connecting surface. It is only provided.
  • an object of the present invention is to reduce the volume of a ball house in a ball-point pen tip as much as possible so that blurring of drawn lines does not occur.
  • the ballpoint pen tip according to the present invention is A holder formed by cutting a cylindrical material; A tapered portion formed by tapering the outer periphery of one end of the holder; A ball house having an inner surface, a bottom surface, and a tapered connection surface that connects the inner surface and the bottom surface in an annular shape, formed by cutting the inner periphery of the tapered portion, A back hole formed by drilling from the other end of the holder to the vicinity of the ball house; An ink hole formed penetrating between the bottom surface of the ball house and the back hole; A channel groove which is a groove formed by cutting a plurality of locations equally distributed around the ink hole radially from the ball house side; A writing ball stored in the ball house; A ball seat to which the curved surface of the writing ball is transferred when the writing ball is pressed toward the back hole in the area around the ink hole on the bottom surface of the ball house; A crimped portion formed by crimping the tip portion of the tapered portion on the inside;
  • the “writing ball” refers to a structure for transferring and applying ink to the writing surface.
  • the writing ball can be formed of, for example, cemented carbide, stainless steel, ceramic, or the like.
  • the “holder” refers to a structure for holding the writing ball. This holder can be formed by cutting a cylindrical member or wire made of metal such as stainless steel. In this holder, the side positioned on the writing tip side when attached to the ballpoint pen refill is tapered, and this portion is referred to as a “taper portion”.
  • an internal space provided from the rear end side of the holder (that is, the side opposite to the writing front end side) to the vicinity of the ball house is referred to as a “back hole”. Furthermore, an internal space that penetrates the back hole and the ball house is referred to as an “ink hole”.
  • the ball house is formed in a cylindrical shape having an inner diameter that is slightly larger than the diameter of the writing ball and a conical surface that is located on the rear end side and gradually decreases in inner diameter toward the rear.
  • the inner space is defined by a “bottom surface” and a tapered “connecting surface” that connects the inner side surface and the bottom surface in an annular shape and whose inner diameter gradually decreases rearward.
  • the ink hole is provided in a central portion of the bottom surface including the axis.
  • a plurality of radially spaced channel grooves are provided around the ink holes. The outer edge of the channel groove extends beyond the bottom surface to the connecting surface. In other words, the channel groove is provided so as to straddle the connecting surface and the bottom surface.
  • the area around the ink hole on the bottom surface of the ball house is a concave curved surface in which the curved surface is transferred by a so-called “striking process” in which a writing ball is stored and pressed backward. Is formed.
  • the writing ball comes into contact with the ball seat, the ink hole is closed by the writing ball, but the ink flow from the ink hole and the back hole is ensured by the channel groove provided around the ink hole.
  • This portion is referred to as a “crimping portion”.
  • x> y where x is the ball house side of the angle formed by the bottom surface and y is the ball house side of the angle formed by the connecting surface. It has become. That is, this makes it possible to bring the connecting surface closer to the writing ball, and to reduce the volume of the ball house.
  • x has an obtuse angle of 100 ° to 160 ° from the viewpoint of forming a ball seat
  • y is not particularly limited as long as it is smaller than x, but it has an acute angle of 40 ° to 80 °. It is desirable from the viewpoint of reducing the ball house volume.
  • the drill is a drill having an outer diameter corresponding to the inner surface of the ball house and the tip angle of the cutting edge being the angle x, and the rear edge portion of the cutting edge is chamfered to the angle y. It is also possible to form in a single step using a tool.
  • the ball-point pen tip according to the present invention has a viscosity of 3 to 300 mPa ⁇ sec, preferably 20 to 40 mPa ⁇ s, particularly at low viscosity, such as low-viscosity gel ink and water-based ink, especially at 25 ° C. under a shear rate of 384 sec ⁇ 1. It is suitable for mounting on a ballpoint pen or a ballpoint pen refill that uses ink adjusted to be sec. Also, to ballpoint pens or ballpoint pen refills using relatively low-viscosity oil-based inks, particularly oil-based inks adjusted to have a viscosity of 700 to 8,000 mPa ⁇ sec at 25 ° C.
  • composition of such an oil-based ink includes a colorant, a main agent in which the solvent represented by the following structural formula (1) accounts for 40% by weight or more of the total solvent in the ink, and a resin soluble in the solvent. What is included can be adopted.
  • R 1 , R 2 and R 3 are each independently H or CH 3 .
  • Specific examples of the main solvent corresponding to the structural formula (1) include 3-methoxybutanol, 3-methyl-3-methoxybutanol, 3-methyl-1,3-butanediol, 1,3-butanediol, and hexylene. And glycols. Preferred are 3-methoxybutanol and 3-methyl-3-methoxybutanol.
  • an auxiliary solvent excellent in compatibility with the main solvent can be included. The resin soluble in the solvent is used for various purposes.
  • ketone resins including terpene phenol resins, rosin-modified maleic resins, rosin phenol resins, alkylphenol resins, phenol resins, styrene maleic resins, rosin resins And acrylic resins, urea aldehyde resins, maleic acid resins, cyclohexane resins, polyvinyl pyrrolidone, cellulose resins, polyvinyl butyral, and the like.
  • the rear end of the channel groove is located in the middle of the ink hole. That is, since the fluidity of the ink is high, the channel groove does not necessarily have to penetrate to the back hole.
  • a direct current phenomenon of ink from the writing tip tends to occur. Therefore, a spring with a tip that is a push rod is built in the back hole. It is desirable to always urge the writing ball toward the tip.
  • the ballpoint pen tip according to the present invention is suitable for the case of using a relatively large diameter writing ball having a ball diameter of 0.5 mm or more, desirably 1.0 mm or more, and using the above low viscosity ink. ing.
  • connection surface which connects these is provided between the inner surface and bottom face of a ball house, the volume of a ball house will become small compared with the case where this is not provided. As a result, it is not necessary to store a large amount of ink in the ink reservoir in the ball house, so that an appropriate ink flow rate can be ensured particularly when ink having a low viscosity is used. In addition, it is possible to prevent ink from dropping off in the drawn lines.
  • FIG. 2 is a front cross-sectional view (A) and an XX cross-sectional view (B) showing a tip portion of the ball-point pen tip according to the first embodiment of the present invention.
  • the ball-point pen refill using the ball-point pen tip which concerns on the 1st Embodiment of this invention is shown with front sectional drawing.
  • tip part of the ball-point pen tip which concerns on a comparative example is shown with front sectional drawing.
  • the ball-point pen refill using the ball-point pen tip which concerns on the 2nd Embodiment of this invention is shown with front sectional drawing.
  • the front end portion of a ball-point pen tip according to a second embodiment of the present invention is shown in a front sectional view (A) and a YY sectional view (B).
  • tip part of the ball-point pen tip which concerns on another comparative example is shown with front sectional drawing.
  • FIG. 1 shows the ball-point pen tip 10 which concerns on the 1st Embodiment of this invention with front sectional drawing.
  • the ballpoint pen tip 10 according to the first embodiment includes a stainless steel holder 20, a cemented carbide writing ball 11 held at the tip thereof, and a stainless steel holder housed in the internal space. It consists of a spring 12.
  • the front end portion of the holder 20 is tapered, and this portion is a tapered portion 21.
  • the internal space of the taper portion 21 is formed as a ball house 30 in which the writing ball 11 is accommodated.
  • a reduced diameter portion 23 with a reduced outer diameter Near the rear end of the holder 20 is a reduced diameter portion 23 with a reduced outer diameter.
  • the ball-point pen tip 10 is attached to the joint 42 by press-fitting this portion into a joint 42 described later.
  • An internal space from the rear end of the holder 20 to the vicinity of the ball house 30 is formed as a back hole 25.
  • An ink hole 26 passes through the back hole 25 and the ball house 30.
  • a spring 12 is inserted into the back hole 25.
  • the tip of the spring 12 is formed in a straight bar shape, and this part is referred to as a push bar 13.
  • the tip of the push bar 13 is in contact with the rear end of the writing ball 11 through the ink hole 26 and is always pressed in the direction of the tip.
  • a part of the rear end of the holder 20 is caulked inward, and this part serves as a fixing part 24 that prevents the spring 12 from falling off.
  • FIG. 2 shows a front end portion of the ball-point pen tip 10 according to the first embodiment in a front sectional view (A) and an XX sectional view (B).
  • the spring 12 is omitted.
  • the writing ball 11 is omitted in FIG.
  • the ball house 30 includes an inner side surface 31 that is a cylindrical surface substantially parallel to the shaft center, a connecting surface 32 that is continuous with the inner side surface 31 and has a taper angle (y) with an acute angle toward the rear, It has a bottom surface 33 continuously reducing the diameter of the connecting surface 32 with an obtuse taper angle (x) toward the rear (see FIG. 2A).
  • FIG. 2A shows a front end portion of the ball-point pen tip 10 according to the first embodiment in a front sectional view (A) and an XX sectional view (B).
  • the spring 12 is omitted.
  • the writing ball 11 is omitted in FIG.
  • the ball house 30 includes an inner side surface 31 that is a cylindrical surface substantially parallel to the
  • connection portion between the coupling surface 32 and the bottom surface 33 has a clear vertex, but this connection portion may be a curved surface and not have a clear vertex.
  • An annular region on the axial center side of the bottom surface 33 is a ball seat 34 to which the curved surface of the writing ball 11 is transferred (see FIG. 2B).
  • the tip of the taper portion 21 is pressed and deformed so as to narrow the diameter inward (see FIG. 2A). This portion is referred to as a caulking portion 22 and is held so that the ball stored in the ball house 30 does not fall off from the tip.
  • six channel grooves 27 are radially arranged around the ink hole 26 (see FIG. 2B).
  • the channel groove 27 is formed so as to straddle the bottom surface 33 and the coupling surface 32, and the rear end thereof reaches only the middle of the ink hole 26 and does not penetrate to the back hole 25.
  • the total area of all the channel grooves 27 in plan view is preferably 10 to 15% of the area of the ball house 30 in plan view.
  • the total area of the ink holes 26 and all the channel grooves 27 in FIG. 2B in plan view is preferably 45 to 55% of the area of the ball house 30 in plan view. If any of these numerical ranges falls below the lower limit, blurring of the drawn line may occur during writing, and if it exceeds the upper limit, ink drop may not be sufficiently prevented.
  • FIG. 3 shows a state in which the ballpoint pen tip 10 according to the first embodiment is mounted on the ballpoint pen refill 40.
  • the ballpoint pen tip 10 is attached to the tip of an ink containing tube 41 made of polypropylene through a joint 42 made of polybutylene terephthalate.
  • the joint 42 and the ballpoint pen tip 10 when the writing tip is held upward, air flows from the writing tip to prevent the ink 44 from leaking from the rear end of the ballpoint pen refill 40.
  • a prevention ball 43 is inserted.
  • the tip of the ball-point pen tip 10 is covered with a resin ball 47 for the purpose of protecting the writing tip until the start of use.
  • Ink 44 is stored inside the ink storage tube 41.
  • the rear end of the accommodated ink 44 is filled with a grease-like follower 45 for the purpose of preventing the ink 44 from leaking out.
  • a resin follower rod 46 having a specific gravity substantially the same as that of the follower 45 is suspended.
  • the follower bar 46 is provided for the purpose of ensuring follow-up in the front end direction of the follower 45 accompanying consumption of the ink 44 and preventing the follower 45 itself from leaking from the rear end.
  • FIG. 5 shows a state in which a ballpoint pen tip 10 according to a second embodiment of the present invention is mounted on a ballpoint pen refill 40.
  • the ballpoint pen tip 10 is attached to the tip of an ink containing tube 41 made of polypropylene through a joint 42 made of polybutylene terephthalate.
  • a joint 42 and the ballpoint pen tip 10 when the writing tip is held upward, air flows from the writing tip to prevent the ink 44 from leaking from the rear end of the ballpoint pen refill 40.
  • a prevention ball 43 is inserted.
  • the ball-point pen tip 10 is made of a stainless steel holder 20, a cemented carbide writing ball 11 held at the tip thereof, and a stainless steel holder housed in the internal space thereof.
  • the spring 12 is composed.
  • Ink 44 is stored inside the ink storage tube 41.
  • the rear end of the accommodated ink 44 is filled with a grease-like follower 45 for the purpose of preventing the ink 44 from leaking out.
  • FIG. 6 is a front sectional view (A) and a YY sectional view (B) of the tip portion of the ballpoint pen tip 10 according to the second embodiment.
  • the spring 12 is omitted.
  • FIG. 6B the writing ball 11 is also omitted.
  • the ball house 30 includes an inner side surface 31 that is a cylindrical surface substantially parallel to the shaft center, a connecting surface 32 that is continuous with the inner side surface 31 and has a taper angle (y) with an acute angle toward the rear, It has a bottom surface 33 continuously reducing the diameter of the connecting surface 32 with an obtuse taper angle (x) toward the rear (see FIG. 6A).
  • FIG. 6A In the cross-sectional view of FIG.
  • the connecting portion of the connecting surface 32 and the bottom surface 33 has a clear vertex, but the connecting portion may be a curved surface and may not have a clear vertex.
  • An annular region on the axial center side of the bottom surface 33 is a ball seat 34 to which the curved surface of the writing ball 11 is transferred (see FIG. 6B).
  • the tip of the taper portion 21 is pressed and deformed so as to narrow the diameter inward (see FIG. 6A). This portion is referred to as a caulking portion 22 and is held so that the ball stored in the ball house 30 does not fall off from the tip.
  • five channel grooves 27 are radially arranged around the ink hole 26 (see FIG. 6B).
  • the channel groove 27 is formed so as to straddle the bottom surface 33 and the coupling surface 32, and the rear end thereof reaches only the middle of the ink hole 26 and does not penetrate to the back hole 25.
  • the tip end portion 25a of the back hole 25 is slightly reduced in diameter.
  • the total area of all the channel grooves 27 in the plan view in FIG. 6B is desirably 10 to 15% of the area of the ball house 30 in the plan view.
  • the total area of the ink holes 26 and all the channel grooves 27 in FIG. 6B in plan view is preferably 45 to 55% of the area of the ball house 30 in plan view. If any of these numerical ranges falls below the lower limit, blurring of the drawn line may occur during writing, and if it exceeds the upper limit, ink drop may not be sufficiently prevented.
  • Example 1 The ball-point pen tip 10 according to Example 1 is the same as that shown in the first embodiment (see FIGS. 1 and 2). More specifically, the writing ball 11 used has an outer diameter of 1.0 mm, an inner diameter of the ball house 30 of 1.03 mm, a diameter of the bottom surface 33 of the ball house 30 of 0.85 mm, and a diameter of the ink hole 26 of 0.6 mm.
  • the taper angle (x) of the bottom surface 33 was 140 °
  • the taper angle (y) of the connecting surface 32 was 50 °.
  • FIG. 1 The ball-point pen tip 10 according to Example 1 is the same as that shown in the first embodiment (see FIGS. 1 and 2). More specifically, the writing ball 11 used has an outer diameter of 1.0 mm, an inner diameter of the ball house 30 of 1.03 mm, a diameter of the bottom surface 33 of the ball house 30 of 0.85 mm, and a diameter of the ink hole 26 of 0.6 mm.
  • the taper angle (x) of the bottom surface 33 was 140
  • the ball-point pen tip 10 used as the comparative example 1 lacks the connecting surface 32 in the ball-point pen tip 10 according to the above-described example 1, thereby the inner side surface 31 and the bottom surface. It was formed in the same manner as in Example 1 except that 33 directly forms a boundary.
  • the ballpoint pen tip 10 according to Example 1 and Comparative Example 1 was mounted on a ballpoint pen refill 40 as shown in FIG.
  • the ink 44 contained in the ballpoint pen refill 40 is used in the gel ink ballpoint pen manufactured by the applicant (trade name: UNIBALL SIGNO, model number: UMN-152), and the ink colors are blue, red and black. Prepared.
  • the above ballpoint pen refill 40 was attached to the shaft tube of the gel ink ballpoint pen and subjected to the following writing test. The writing test was adjusted in the same manner as the one in which the same subject was allowed to spirally write a circle with a diameter of about 3 cm with a free hand using the gel ink ballpoint pen adjusted as described above (writing test 1).
  • the gel ink ballpoint pen is mounted on a writing tester (Minitech writing tester, Mitsubishi Pencil) in accordance with JIS standard S6039, with a writing speed of 4.5 m / min, a writing angle of 55 °, and a writing load of 0.8 N.
  • the test was carried out in two ways: a writing test paper compliant with JIS standard P3201 and a spiral writing of a circle having a diameter of 3 cm (writing test 2).
  • Example 1 When the ink color is blue, there was no difference between the evaluation A and the evaluation A in both of Example 1 and Comparative Example 1 in the writing test 1; On the other hand, in Comparative Example 1, the evaluation B has three evaluations and the evaluation C has two evaluations. In the case where the ink color is red, in the writing test 1, all of the five examples 1 were evaluated as A, whereas in the comparative example 1, the evaluation A was three and the evaluation B was two. Exceeded. In the written test 2, all of the five examples 1 were evaluated as A, while the comparative example 1 was evaluated as having excellent evaluation of the first example with three evaluations B and two evaluations C. It has gained. In the case where the ink color is black, in each of the writing tests 1 and 2, Example 1 was evaluated A for all 5 samples, whereas Comparative Example 1 was evaluated 3 for evaluation A and 2 for evaluation B. The evaluation of Example 1 exceeded.
  • Example 1 the evaluation of the writing test of Example 1 was higher than that of Comparative Example 1. This is because the ball-point pen tip ball house of Example 1 has a tapered connecting surface located between the inner surface and the bottom surface, so that the volume of the ink reservoir in the ball house is larger than that of Comparative Example 1. Therefore, it is concluded that excessive supply of ink having a relatively low viscosity is suppressed, and as a result, ink drop is prevented.
  • Example 2 The ballpoint pen tip 10 according to Example 2 is the same as that shown in the second embodiment (see FIG. 6). More specifically, the writing ball 11 used has an outer diameter of 1.4 mm, an inner diameter of the ball house 30 of 1.41 mm, a diameter of the bottom surface 33 of the ball house 30 of 1.15 mm, and a diameter of the ink hole 26 of 0.9 mm.
  • the taper angle (x) of the bottom surface 33 was 120 °
  • the taper angle (y) of the connecting surface 32 was 60 °.
  • the ball-point pen tip 10 used as the comparative example 2 lacks the connecting surface 32 in the ball-point pen tip 10 according to the above-described example 2, thereby the inner side surface 31 and the bottom surface. It is formed in the same manner as in Example 2 except that 33 directly forms a boundary.
  • the viscosity of the oil-based ink obtained with the above composition was 1,100 mPa ⁇ sec (25 ° C., shear rate: 3.83 sec ⁇ 1 ).
  • the above-mentioned ballpoint pen refill 40 was mounted on the shaft of an oil-based ink ballpoint pen manufactured by the applicant (trade name: Jetstream, model number: SXN-158) and subjected to the same writing test as in Example 1.
  • the evaluation criteria for the writing test were also the same as in Example 1.
  • the results of the written test are shown in Table 2 below.
  • the present invention is applicable to a ballpoint pen tip used for a ballpoint pen.

Landscapes

  • Pens And Brushes (AREA)

Abstract

L'invention porte sur un stylo à bille, dans lequel stylo le volume du boîtier de bille est minimisé à une ampleur qui ne provoque pas d'empattement d'une ligne tracée. Le boîtier de bille (30) est formé par découpe d'une périphérie interne d'une partie effilée (21) formée par effilement de la périphérie extérieure d'une extrémité d'un support (20) formé par découpe d'un matériau en colonne, et comprend une face intérieure (31), une face inférieure (33), et une face de liaison effilée (32) reliant de façon annulaire la face intérieure (31) et la face inférieure (33). Si l'angle d'effilement de la face inférieure (33) est représenté par x et que l'angle d'effilement de la face de liaison (32) est représenté par y, les angles x et y satisfont à la relation : x > y. Les rainures de canal (27) sont formées radialement autour du trou d'encre (26), pénétrant dans la face inférieure (33) à travers des parties de la face de liaison (32) et de la face inférieure (33).
PCT/JP2010/064334 2009-08-26 2010-08-25 Pointe de stylo à bille WO2011024834A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-195262 2009-08-26
JP2009195262 2009-08-26

Publications (1)

Publication Number Publication Date
WO2011024834A1 true WO2011024834A1 (fr) 2011-03-03

Family

ID=43627934

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/064334 WO2011024834A1 (fr) 2009-08-26 2010-08-25 Pointe de stylo à bille

Country Status (2)

Country Link
JP (1) JP5663236B2 (fr)
WO (1) WO2011024834A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109203763A (zh) * 2018-10-19 2019-01-15 上海晨光文具股份有限公司 弹簧笔头、乳化墨水笔芯以及乳化墨水笔
US20230398807A1 (en) * 2020-11-16 2023-12-14 Kabushiki Kaisha Pilot Corporation (Also Trading As Pilot Corporation) Ballpoint pen tip, ballpoint pen refill, and ballpoint pen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422832U (fr) * 1977-07-18 1979-02-15
JP2002200878A (ja) * 2000-12-27 2002-07-16 Pentel Corp ボールペンチップ
JP2002254878A (ja) * 2001-02-28 2002-09-11 Pentel Corp ボールペンチップ及びその製造方法
JP2002321483A (ja) * 2001-04-26 2002-11-05 Mitsubishi Pencil Co Ltd ボールペンチップ
JP2007098697A (ja) * 2005-09-30 2007-04-19 Pentel Corp ボールペンチップ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422832U (fr) * 1977-07-18 1979-02-15
JP2002200878A (ja) * 2000-12-27 2002-07-16 Pentel Corp ボールペンチップ
JP2002254878A (ja) * 2001-02-28 2002-09-11 Pentel Corp ボールペンチップ及びその製造方法
JP2002321483A (ja) * 2001-04-26 2002-11-05 Mitsubishi Pencil Co Ltd ボールペンチップ
JP2007098697A (ja) * 2005-09-30 2007-04-19 Pentel Corp ボールペンチップ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109203763A (zh) * 2018-10-19 2019-01-15 上海晨光文具股份有限公司 弹簧笔头、乳化墨水笔芯以及乳化墨水笔
US20230398807A1 (en) * 2020-11-16 2023-12-14 Kabushiki Kaisha Pilot Corporation (Also Trading As Pilot Corporation) Ballpoint pen tip, ballpoint pen refill, and ballpoint pen
US11975560B2 (en) * 2020-11-16 2024-05-07 Kabushiki Kaisha Pilot Corporation Ballpoint pen tip, ballpoint pen refill, and ballpoint pen

Also Published As

Publication number Publication date
JP5663236B2 (ja) 2015-02-04
JP2011068128A (ja) 2011-04-07

Similar Documents

Publication Publication Date Title
JP5718104B2 (ja) ボールペンチップ、ボールペンリフィル及びボールペン
JP4480187B1 (ja) 油性ボールペンリフィル
KR100694532B1 (ko) 볼펜
US7862249B2 (en) Ball-point pen tip and ink refill
CA2147916C (fr) Pointe de stylo-bille, methode de fabrication et stylo utilisant une telle pointe
JP2006070236A (ja) 水性インキ組成物
JP4870444B2 (ja) 塗布具用チップ、並びに、塗布具
JP5663236B2 (ja) ボールペンチップ
JP2015208932A (ja) 油性ボールペンリフィル及び油性ボールペン
JP4420365B2 (ja) ボールペンチップ
US7914222B2 (en) Tip unit for liquid applicator, method for producing the same, and liquid applicator having the tip unit
JP6399790B2 (ja) 油性ボールペンレフィル及びそれを用いた油性ボールペン
JP4618697B2 (ja) ボールペンリフィール
JP5121087B2 (ja) ボールペン及びボールペンチップ
JP6125854B2 (ja) ボールペン
JP5083938B2 (ja) ボールペン
JP6846403B2 (ja) ボールペン
JP2020032714A (ja) ボールペンリフィル及びボールペン
JP7175112B2 (ja) 水性ボールペン
JP6463069B2 (ja) ボールペン
JP4267886B2 (ja) 塗布具用チップ、塗布具及び塗布具用チップの製造方法
JP4318256B2 (ja) ボールペンリフィール
JP4494769B2 (ja) ボールペンチップ
JP2005254549A (ja) 筆記具
JP2022057568A (ja) ボールペンチップ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10811883

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10811883

Country of ref document: EP

Kind code of ref document: A1