WO1996014998A1 - Instrument de marquage - Google Patents

Instrument de marquage Download PDF

Info

Publication number
WO1996014998A1
WO1996014998A1 PCT/US1995/014538 US9514538W WO9614998A1 WO 1996014998 A1 WO1996014998 A1 WO 1996014998A1 US 9514538 W US9514538 W US 9514538W WO 9614998 A1 WO9614998 A1 WO 9614998A1
Authority
WO
WIPO (PCT)
Prior art keywords
tip
marking
valve
feed member
subchamber
Prior art date
Application number
PCT/US1995/014538
Other languages
English (en)
Inventor
Roy Nicoll
Mark Arthur Seddon
Original Assignee
The Gillette Company
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 The Gillette Company filed Critical The Gillette Company
Priority to AU41508/96A priority Critical patent/AU700541B2/en
Priority to US08/849,154 priority patent/US5888007A/en
Priority to BR9509667A priority patent/BR9509667A/pt
Priority to GB9709214A priority patent/GB2310592B/en
Priority to JP8516184A priority patent/JPH10508803A/ja
Priority to NZ296802A priority patent/NZ296802A/xx
Publication of WO1996014998A1 publication Critical patent/WO1996014998A1/fr
Priority to MXPA/A/1997/003510A priority patent/MXPA97003510A/xx
Priority to HK98101639A priority patent/HK1002757A1/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/18—Arrangements for feeding the ink to the nibs
    • B43K5/1818—Mechanical feeding means, e.g. valves; Pumps
    • B43K5/1827—Valves
    • B43K5/1836—Valves automatically closing
    • B43K5/1845—Valves automatically closing opened by actuation of the writing point

Definitions

  • This invention relates to marking instruments such as writing instruments of the highlighter pen, felt tip pen, fiber tip pen, ballpoint pen and other types wherein a marking fluid is delivered to a marking tip from a reservoir chamber.
  • the invention is particularly concerned with such marking instruments wherein means are provided to pressurize the marking fluid in the reservoir chamber to cause the fluid to flow to the marking tip when it is required.
  • WO 93/05966 for example there is described a marking instrument wherein the reservoir chamber is partially delimited by a diaphragm, and a member carrying the marking tip is adapted to retract into the barrel of the instrument when the tip is applied against a surface so that the diaphragm is deflected to pressurize the contents of the fluid reservoir.
  • the diaphragm also serves as a valve member to isolate the interior of the reservoir chamber from a duct through which the fluid is supplied to the tip when the force against the tip is removed and it returns to a forward most position. It has been found that under some circumstances, the marking fluid can continue to flow or ooze to the marking tip, especially if the fluid is of a more viscous formulation, when the forces against the tip due to it being pressed against a surface are released, and this has been observed even where a valve is included to close the communication between the reservoir chamber and the marking tip.
  • the present invention has for its aim to provide a solution to the problem explained above and accordingly the invention provides a marking instrument comprising a reservoir chamber for holding a supply of marking fluid, a marking tip for applying the marking fluid to a surface, a fluid supply channel for conducting fluid to the tip, normally closed valve means controlling communication between the reservoir chamber and the supply channel, the marking tip being retractable to open the valve by pressing the tip against the surface, and means arranged to draw fluid through the supply channel from the tip during forward displacement of the tip after the valve means has closed.
  • a subchamber of variable volume is connected to the supply channel, the volume of the chamber being arranged to increase during forward displacement of the tip after the valve means has closed.
  • the subchamber is an auxiliary reservoir for the marking fluid and is partially confined by a resiliently deformable member which also acts to urge the marking tip to its forwardmost position.
  • the fluid supply channel is formed in a feed member axially slidable in a barrel of the instrument in which the reservoir chamber is enclosed, and the resiliently deformable member is annular and sealingly connected between the feed member and the barrel.
  • the resilient member can define a valve seat of the valve means.
  • the resiliently deformable member comprises a first collar sealingly attached to the feed member, a second collar sealingly connected to the barrel and forming a valve seat, and an annular deformable diaphragm section interconnecting the first and second collars.
  • the precise form of the valve means is not crucial and it may be of any convenient type, such as a flap valve, or ball valve, having a valve member arranged to be lifted from its seat by retraction of the feed member and possibly urged to a closing position by spring means.
  • the volume of the subchamber or auxiliary chamber need not be very large as fluid is supplied from the main reservoir chamber to satisfy the demand at the marking tip when the valve is opened.
  • a negative pressure is created and acts to draw fluid back from the tip during the final part of the forward displacement of the tip.
  • the suction forces are not so great that air will be sucked into the reservoir system, which might interfere with smooth reliable supply of fluid when next needed.
  • Figure 1 is a partial axial cross- section through a marking instrument according to the invention, the components being illustrated in a normal position when there is no force applied against the marking tip;
  • Figure 2 shows the marking instrument of Figure 1 when the marking tip is being pressed against a surface in preparation for laying down a trace of marking liquid;
  • Figure 3 shows the instrument of Figures 1 and 2 when the tip of the instrument is being lifted from the surface
  • Figure 4 is a view similar to Figure 1 showing a modified construction.
  • the illustrated marking instrument e.g. a reservoir pen
  • the reservoir chamber is of such a kind that its internal volume decreases as the ink is used up.
  • the rear end of the chamber can be closed by an ink follower, such as a grease plug, which moves along the chamber to follow the ink column contained in the chamber as the ink is consumed. In this way it is unnecessary to supply air to the chamber to take up the space vacated by ink as it is used.
  • an ink follower such as a grease plug
  • a barrel nose 3 Fitted to the forward end of the body is a barrel nose 3 having a tapering cone portion leading to a cylindrical forward section 5.
  • a feed member 6 consisting of a cylindrical rod or bar with an axial bore 7 forming an ink supply channel for conducting ink to a marking tip carried at the forward end of the feed member.
  • the marking tip itself is not shown in the drawings and its particular type forms no part of this invention.
  • the tip can be, for example, a felt tip, a fiber tip, ball point, roller - ball, tubular nib or any other tip commonly used in marking instruments equipped with liquid reservoirs.
  • the feed member 6 At its trailing end the feed member 6 has a portion of reduced external diameter and seated against the annular shoulder defined on the feed member is a forward or inner collar 9 of a resiliently deformable member of which in the illustrated embodiment takes the form of a bellows-like diaphragm member ⁇ .
  • This diaphragm member includes a rear outer collar 10 which is sealed to the barrel and is held clamped against the forward end of the body 1 by a sleeve 11 inserted between the body 1 and the nose 3.
  • the inner edge of the collar 10 has a radius greater than that of the trailing end portion of the feed member and defines a valve seat for cooperation with a valve member in the form of a ball 12.
  • valve seat and valve member constitute a normally closed valve means which controls communication between the reservoir chamber 2 and the ink supply channel 7.
  • Extending between the collars 9, 10 of the diaphragm member is a resilient, deformable, rearwardly divergent bellows portion 13.
  • the resilience of the diaphragm member 8 acts to urge the feed member 6, and hence the writing tip, to a forwardmost position and when in this position the diaphragm member encloses, with the trailing end of the feed member and the valve ball 12, a small volume subchamber 20 which communicates with the ink feed channel 7 through radial ports 14 in the feed member.
  • valve ball 12 is biased forwardly into sealing engagement with the seat by a coil spring 15 which is supported by a spring support 16 of cruciform cross-section having slots in the wings thereof to accommodate the spring.
  • a coil spring 15 which is supported by a spring support 16 of cruciform cross-section having slots in the wings thereof to accommodate the spring.
  • the trailing end of the feed member is spaced at a small distance from the valve ball which is held in sealing engagement with the valve seat thereby isolating the main reservoir chamber 2 from the subchamber 20 and the feed channel 7.
  • the feed bar 6 retracts into the barrel and its trailing end first takes up the clearance between the feed member and the valve ball.
  • the diaphragm member 8 urges the feed member 6 forwardly and its bellows portion 13 expands again.
  • the resulting increases in volume of the subchamber 20 is initially satisfied by ink passing from the main reservoir chamber 2 through the still open valve, upon the valve closing however, a small amount of the forward stroke of the feed member still remains, and the increase in volume of the subchamber which occurs during this part of the stroke results in a negative pressure being created in this space 20 tending to draw ink back through the supply channel from the tip, as shown in Fig 3.
  • the level of suction obtained in the subchamber 20 after the valve has closed will depend on the shape of the bellows and the forward movement of the feed member after valve closure, and by selecting the bellows profile and clearances the suction effect can be adjusted.
  • valve member 12' instead of a ball, it has a valve member 12' with a frustoconical surface arranged to cooperate with the valve seat, whereby a larger valve opening is obtained for a given displacement of the valve member, which may be desirable if a viscous ink is being used.
  • the valve member 12' is ⁇ lidably guided in the pen body 1 by several, e.g. eight radial projections spaced apart around the valve member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pens And Brushes (AREA)
  • Golf Clubs (AREA)
  • Coating Apparatus (AREA)

Abstract

Un instrument de marquage, tel qu'un stylo à réservoir, comporte un clapet (10, 12) servant à réguler la communication entre une chambre (2) de réservoir et un canal d'amenée (7) traversant un élément d'amenée (6) et aboutissant à la pointe de marquage. L'élément d'amenée peut se rétracter pour ouvrir le clapet lorsqu'on appuie la pointe contre une surface. Une sous-chambre (20) est renfermée par une membrane (8) raccordée de manière étanche entre l'élément d'amenée (6) et le corps, et lorsque la pointe de marquage est retirée de la surface, la membrane pousse l'élément d'amenée (6) vers l'avant de façon à fermer le clapet, le volume de la sous-chambre (20) augmentant ensuite de sorte que l'encre soit aussi aspirée par le canal (7) depuis la pointe.
PCT/US1995/014538 1994-11-14 1995-11-08 Instrument de marquage WO1996014998A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AU41508/96A AU700541B2 (en) 1994-11-14 1995-11-08 Marking instrument
US08/849,154 US5888007A (en) 1994-11-14 1995-11-08 Marking instrument
BR9509667A BR9509667A (pt) 1994-11-14 1995-11-08 Instrumento de marcação
GB9709214A GB2310592B (en) 1994-11-14 1995-11-08 Marking instrument
JP8516184A JPH10508803A (ja) 1994-11-14 1995-11-08 筆記具
NZ296802A NZ296802A (en) 1994-11-14 1995-11-08 Marker pen: liquid drawn through the supply channel from the tip after the valve is closed
MXPA/A/1997/003510A MXPA97003510A (en) 1994-11-14 1997-05-13 Marcac instrument
HK98101639A HK1002757A1 (en) 1994-11-14 1998-03-03 Marking instrument

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9422906A GB9422906D0 (en) 1994-11-14 1994-11-14 Writing/marking instrument
GB9422906.9 1994-11-14

Publications (1)

Publication Number Publication Date
WO1996014998A1 true WO1996014998A1 (fr) 1996-05-23

Family

ID=10764337

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/014538 WO1996014998A1 (fr) 1994-11-14 1995-11-08 Instrument de marquage

Country Status (10)

Country Link
JP (1) JPH10508803A (fr)
AR (1) AR000910A1 (fr)
AU (1) AU700541B2 (fr)
BR (1) BR9509667A (fr)
GB (2) GB9422906D0 (fr)
HK (1) HK1002757A1 (fr)
NZ (1) NZ296802A (fr)
TR (1) TR199501417A2 (fr)
TW (1) TW396966U (fr)
WO (1) WO1996014998A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997002148A1 (fr) * 1995-06-30 1997-01-23 The Gillette Company Instrument de marquage
US6004058A (en) * 1995-06-30 1999-12-21 The Gillette Company Marking instrument
WO2001062519A1 (fr) * 2000-02-25 2001-08-30 Bic Deutschland Gmbh & Co. Distributeur manuel permettant d'appliquer un produit correcteur fluide sur la surface d'un substrat

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9623591D0 (en) * 1996-11-13 1997-01-08 Jones Stephen H Liquid applicator
DE102005022462B4 (de) * 2005-05-14 2011-08-18 edding Aktiengesellschaft, 22926 Schreibgerät

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804846A (en) * 1955-01-14 1957-09-03 Rogers Jack Fountain pen
US2996750A (en) * 1959-04-06 1961-08-22 Cholet Bertram Fountain pen
GB2170697A (en) * 1985-02-12 1986-08-13 Platignum Plc Marker pen
EP0476492A1 (fr) * 1990-09-11 1992-03-25 Jiro Hori Marqueur
WO1993005966A1 (fr) * 1991-09-26 1993-04-01 The Gillette Company Instruments d'ecriture ou de marquage
EP0556440A1 (fr) * 1992-02-17 1993-08-25 Jiro Hori Instrument à écrire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804846A (en) * 1955-01-14 1957-09-03 Rogers Jack Fountain pen
US2996750A (en) * 1959-04-06 1961-08-22 Cholet Bertram Fountain pen
GB2170697A (en) * 1985-02-12 1986-08-13 Platignum Plc Marker pen
EP0476492A1 (fr) * 1990-09-11 1992-03-25 Jiro Hori Marqueur
WO1993005966A1 (fr) * 1991-09-26 1993-04-01 The Gillette Company Instruments d'ecriture ou de marquage
EP0556440A1 (fr) * 1992-02-17 1993-08-25 Jiro Hori Instrument à écrire

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997002148A1 (fr) * 1995-06-30 1997-01-23 The Gillette Company Instrument de marquage
US6004058A (en) * 1995-06-30 1999-12-21 The Gillette Company Marking instrument
WO2001062519A1 (fr) * 2000-02-25 2001-08-30 Bic Deutschland Gmbh & Co. Distributeur manuel permettant d'appliquer un produit correcteur fluide sur la surface d'un substrat
US6729788B2 (en) 2000-02-25 2004-05-04 Bic Deutschland Gmbh & Co. Hand-held dispenser for applying a flowable correction medium on a substrate surface
EP1535754A3 (fr) * 2000-02-25 2007-10-03 Société BIC Distributeur manuel permettant d'appliquer un produit correcteur fluide sur la surface d'un substrat

Also Published As

Publication number Publication date
MX9703510A (es) 1997-07-31
JPH10508803A (ja) 1998-09-02
TW396966U (en) 2000-07-01
GB9709214D0 (en) 1997-06-25
GB2310592B (en) 1999-03-17
AR000910A1 (es) 1997-08-27
GB2310592A8 (en) 1998-09-15
BR9509667A (pt) 1997-10-28
HK1002757A1 (en) 1998-09-18
AU4150896A (en) 1996-06-06
AU700541B2 (en) 1999-01-07
NZ296802A (en) 1999-02-25
TR199501417A2 (tr) 1996-06-21
GB2310592A (en) 1997-09-03
GB9422906D0 (en) 1995-01-04

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