EP0630761B1 - Cap for writing instruments containing ink - Google Patents

Cap for writing instruments containing ink Download PDF

Info

Publication number
EP0630761B1
EP0630761B1 EP94113647A EP94113647A EP0630761B1 EP 0630761 B1 EP0630761 B1 EP 0630761B1 EP 94113647 A EP94113647 A EP 94113647A EP 94113647 A EP94113647 A EP 94113647A EP 0630761 B1 EP0630761 B1 EP 0630761B1
Authority
EP
European Patent Office
Prior art keywords
cap
axial
ventilation
ventilation path
safety
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.)
Expired - Lifetime
Application number
EP94113647A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0630761A2 (en
EP0630761A3 (enrdf_load_stackoverflow
Inventor
Kazunori Katami
Kazuhiko Suzuki
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.)
Tombow Pencil Co Ltd
Original Assignee
Tombow 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
Priority claimed from JP1324901A external-priority patent/JPH0825353B2/ja
Priority claimed from JP1325960A external-priority patent/JP2539275B2/ja
Priority claimed from JP1989144989U external-priority patent/JP2512711Y2/ja
Application filed by Tombow Pencil Co Ltd filed Critical Tombow Pencil Co Ltd
Publication of EP0630761A2 publication Critical patent/EP0630761A2/en
Publication of EP0630761A3 publication Critical patent/EP0630761A3/xx
Application granted granted Critical
Publication of EP0630761B1 publication Critical patent/EP0630761B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B43K23/08—Protecting means, e.g. caps
    • B43K23/12—Protecting means, e.g. caps for pens
    • B43K23/122—Protecting means, e.g. caps for pens with means for preventing choking
    • B43K23/124—Protecting means, e.g. caps for pens with means for preventing choking comprising an air passage
    • 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
    • B43K23/08—Protecting means, e.g. caps
    • B43K23/12—Protecting means, e.g. caps for pens
    • B43K23/126—Protecting means, e.g. caps for pens with clips

Definitions

  • the invention relates to an improvement to caps for writing instruments containing ink and in particular to a cap with a safety ventilation device in order to facilitate an air flow along the cap, if the latter has lodged in a person's windpipe, for example of a child, when swallowed accidentally.
  • a safety cap which has an axially extending ventilation path on the outside of the cap provided underneath a clip which is connected to the cap in a rigid, non-resilient manner.
  • a ventilation path is defined by a number of longitudinal grooves provided between ribs axially extending on the outside of the cap, in which the grooves communicate with the interior of the cap along a body portion thereof near the insertion end.
  • a cap for writing instruments containing ink having a safety ventilation means enabling an air flow along the cap, if the cap has lodged in a person's windpipe when swallowed accidentally
  • said safety ventilation means comprising an axial ventilation path on the outside of the cap, which along at least part of its axial extension has an open cross-sectional configuration, whereby when a covering is placed around the cap, a cross-sectional area for ventilation in each radial plane is defined having a throughflow capacity corresponding to the air requirement of a person, said ventilation path being partially formed by a plurality of axial indentations or grooves formed in the outer surface of the cap and spaced apart peripherally, wherein the cap being closed on all sides with the exception of its insertion end, in which a substantially plate-like retaining clip being provided between an adjacent pair of said axial indentations or grooves.
  • a cap according to the present invention has a high sealing function resulting from the fact that the cap is closed on all sides, i.e. there are no perforations leading into the inside of the caps at any location of the cap body.
  • the cap therefore corresponds in its sealing function to conventional caps used in writing instruments without a safety ventilation device.
  • Existing caps can therefore readily be replaced by a safety cap according to the invention.
  • the construction of the safety ventilation device according to the invention has advantages both as regards manufacturing techniques, since it is not necessary to form cavities or perforations in the cap body as well as an improved safety function, in that the combination of a clip between a pair of indentations or grooves on the outside of the cap results in a longitudinal ventilation path which is more effective than a ventilation path provided by such indentations or grooves alone. Further the portions of the cap, which are critical with regard to the safety function, can readily be checked at a glance as regards their present state.
  • the reference numeral 201 relates to a substantially cylindrical cap with a closed axial top end and an open insertion end bearing the reference numeral 204.
  • the outer diameter of the cap 201 normally amounts to no more than 16 mm.
  • Attached close to the top end of the cap 201 is a retaining clip 202, which is held by way of a projection 207 formed on the surface of the cap 201, at a suitable distance from the surface of the cap 201.
  • the writing part of a writing instrument (not shown) if inserted through the insertion end 204 in the interior of the cap 201 can be hermetically sealed against the outside.
  • the reference numeral 206 relates to a number of indentations or grooves formed in the outer surface of the cap 201, which extend along the cap from its top end to the insertion end 204 and are distributed peripherally at a suitable distance from each other.
  • the free end of the retaining clip 2 may terminate at a distance m from the insertion end 204, which distance should be not more than 2 mm.
  • a covering H placed around the cap 201 is indicated by the broken line in Figure 4.
  • the covering H corresponds substantially to a windpipe in the region of a swallowed cap 201.
  • axial air paths are formed between the covering H and the grooves or indentations 206, through which air for breathing can flow, because at these portions a direct contact of the covering H or the windpipe with the surface of the cap 201 is prevented.
  • a pair of indentations or grooves 206 is provided adjacent the retaining clip 202 laterally.
  • the area 206 defined by the retaining clip 202, the surface of the cap 201 and the covering H provides an enlarged air passage near the retaining clip 202 for ventilation.
  • the cross-sectional area available as a whole for the ventilation in a radial plane of the cap needs not to be the same along the cap between the axial ends thereof. It is important that a cross-sectional area for the ventilation is available at each axial position of the cap which has a throughflow capacity corresponding at least to the minimum air requirement of a person. Experiments have shown that a minimum cross-sectional area would be 3.4 mm 2 , preferably 6.8 mm 2 . Furthermore it is important that the axial air paths on the outside of the cap have axial open ends which cannot be clogged by a covering H placed around them, respectively by the windpipe of a person.

Landscapes

  • Clips For Writing Implements (AREA)
  • Coating Apparatus (AREA)
  • Pens And Brushes (AREA)
EP94113647A 1989-12-16 1990-03-12 Cap for writing instruments containing ink Expired - Lifetime EP0630761B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP1324901A JPH0825353B2 (ja) 1989-12-16 1989-12-16 インキを内蔵する筆記具用キャップ
JP324901/89 1989-12-16
JP144989/89 1989-12-18
JP1325960A JP2539275B2 (ja) 1989-12-18 1989-12-18 インキ内蔵筆記具用キャップ
JP1989144989U JP2512711Y2 (ja) 1989-12-18 1989-12-18 インキを内蔵する筆記具用キャップ
JP325960/89 1989-12-18
EP19900104659 EP0433532B1 (en) 1989-12-16 1990-03-12 Cap for writing instruments containing ink

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP90104659.9 Division 1990-03-12

Publications (3)

Publication Number Publication Date
EP0630761A2 EP0630761A2 (en) 1994-12-28
EP0630761A3 EP0630761A3 (enrdf_load_stackoverflow) 1995-02-01
EP0630761B1 true EP0630761B1 (en) 1997-11-19

Family

ID=27318920

Family Applications (3)

Application Number Title Priority Date Filing Date
EP94113647A Expired - Lifetime EP0630761B1 (en) 1989-12-16 1990-03-12 Cap for writing instruments containing ink
EP95103513A Expired - Lifetime EP0679538B1 (en) 1989-12-16 1990-03-12 Cap for writing instruments containing ink
EP19900104659 Expired - Lifetime EP0433532B1 (en) 1989-12-16 1990-03-12 Cap for writing instruments containing ink

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP95103513A Expired - Lifetime EP0679538B1 (en) 1989-12-16 1990-03-12 Cap for writing instruments containing ink
EP19900104659 Expired - Lifetime EP0433532B1 (en) 1989-12-16 1990-03-12 Cap for writing instruments containing ink

Country Status (3)

Country Link
EP (3) EP0630761B1 (enrdf_load_stackoverflow)
DE (3) DE69031741T2 (enrdf_load_stackoverflow)
ES (3) ES2111222T3 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930008091Y1 (ko) * 1990-10-17 1993-12-08 가부시끼가이샤 돔보 엔삐쯔 필기구용 캡
DE9115124U1 (de) * 1991-12-05 1992-04-02 Pelikan Ag, 3000 Hannover Verschlußkappe für ein Schreibgerät
US5316402A (en) * 1991-12-13 1994-05-31 Tombow Pencil Co., Ltd. Penholder cap
US5632565A (en) * 1995-09-07 1997-05-27 Colleague Iowa, Inc. Removable cap with fluid passage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174374B (en) * 1985-04-12 1989-04-19 Platignum Plc Closure cap
GB8728410D0 (en) * 1987-12-04 1988-01-13 Ashpole D E J Caps for writing instruments
JPH01169386U (enrdf_load_stackoverflow) * 1988-05-21 1989-11-29
DE3914290C1 (enrdf_load_stackoverflow) * 1989-04-29 1991-02-14 A. W. Faber-Castell Gmbh & Co, 8504 Stein, De
DE8907626U1 (de) * 1989-06-22 1990-07-26 J. S. Staedtler GmbH & Co, 8500 Nürnberg Vorrichtung zum Verhindern des Erstickens bei Schreibgerätekappen
DE8908065U1 (de) * 1989-07-01 1989-09-14 J. S. Staedtler GmbH & Co, 8500 Nürnberg Schreibgerätekappe

Also Published As

Publication number Publication date
DE69031182D1 (de) 1997-09-04
EP0679538A1 (en) 1995-11-02
EP0630761A2 (en) 1994-12-28
DE69031741T2 (de) 1998-04-09
DE69027657T2 (de) 1996-10-31
ES2111222T3 (es) 1998-03-01
EP0433532A1 (en) 1991-06-26
ES2105796T3 (es) 1997-10-16
DE69031182T2 (de) 1998-01-08
DE69027657D1 (de) 1996-08-08
DE69031741D1 (de) 1998-01-02
EP0679538B1 (en) 1997-07-30
ES2088912T3 (es) 1996-10-01
EP0630761A3 (enrdf_load_stackoverflow) 1995-02-01
EP0433532B1 (en) 1996-07-03

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