EP1084042A1 - Craie munie d'un manchon protecteur et manchon protecteur thermoretractable - Google Patents
Craie munie d'un manchon protecteur et manchon protecteur thermoretractableInfo
- Publication number
- EP1084042A1 EP1084042A1 EP99922432A EP99922432A EP1084042A1 EP 1084042 A1 EP1084042 A1 EP 1084042A1 EP 99922432 A EP99922432 A EP 99922432A EP 99922432 A EP99922432 A EP 99922432A EP 1084042 A1 EP1084042 A1 EP 1084042A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- weakening lines
- longitudinal
- protective sleeve
- chalk
- 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.)
- Withdrawn
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 3
- 230000003313 weakening effect Effects 0.000 claims description 25
- 210000002105 tongue Anatomy 0.000 claims description 3
- 239000002654 heat shrinkable material Substances 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000842962 Apoda limacodes Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B43K23/016—Holders for crayons or chalks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/14—Sheathings
Definitions
- White or colored chalks are generally provided with an envelope around their periphery to avoid getting their fingers dirty during their use, as well as to provide a support intended to receive information such as company name, pictogram, barcode , color number, etc.
- envelopes made of paper are known. It is a strip of paper wrapped around the chalk and glued.
- Such envelopes are described in the CH patent (patent application CH 1794/96 of the holder, entitled “label”).
- This label intended to be affixed to a drawing instrument, in particular chalks consists of a rectangular sheet of paper having cutouts forming festoons on one of the long sides.
- the label is dimensioned in such a way that in the service position on the chalk, it has a covering zone comprising a double thickness of paper on at least part of the circumference of the chalk. Openings are provided and arranged in such a way that they are in the immediate vicinity of the label covering edge, in the service position, to facilitate the initiation of tearing off a label strip along the pre- cuts.
- a label or envelope is easy to use for the user but has the disadvantage of being relatively expensive and especially that of a delicate installation requiring a winding of the paper around the chalk, then its sticking.
- the present invention relates to a chalk provided with a protective sleeve and a protective sleeve for chalk which obviates the aforementioned drawbacks and which allows easy use of the chalk, that is to say section by section removal of the sleeve, an easy installation. and economical, and thereby mass production of protective sleeves to reduce the cost.
- Figure 1 shows in perspective a chalk provided with a protective sleeve.
- Figure 2 illustrates in perspective a protective sleeve intended to be affixed by heat shrinking around a chalk.
- FIG. 3 illustrates on a larger scale a detail of the protective sleeve illustrated in FIG. 2.
- FIG. 4 illustrates on a larger scale a detail of a variant of the protective sleeve.
- FIG. 5 illustrates a second embodiment of the protective sleeve in cross section before being placed on the chalk.
- Figure 6 illustrates the protective sleeve of Figure 5 split longitudinally and laid flat.
- FIG. 7 illustrates a chalk provided with the protective sleeve illustrated in FIGS. 5 and 6.
- the chalk illustrated in FIG. 1 has a conical tip 1 and a cylindrical body 2, this body 2 being entirely or partially covered with a protective sleeve 3 made of heat-shrinkable plastic.
- FIG. 2 illustrates the heat-shrinkable sleeve 3 before it is affixed to the chalk.
- This sleeve 3 is produced from a sheet of heat-shrinkable material rolled up to form a cylinder. The edges of the overlapping sheet are welded together, thus forming a longitudinal weld 4.
- the sheet constituting the sleeve 3 is, before welding, provided with weakening lines, for example perforation lines. These pre-perforations are arranged so that once the sleeve 3 has been formed, a first network of weakening lines is formed by transverse cutting lines 5 closed on themselves, here circular, defining several sections of the sleeve. protection.
- a second network of weakening lines consists of two longitudinal weakening lines 6 generally and preferably arranged on either side of the weld 4.
- Each circular cutting line 5 of the first network of weakening lines has a slot or opening 7 generally located in line with the weld 4 and slightly longer than the width defined by the two longitudinal weakening lines 6.
- the sleeves are stored in rolls, still attached to each other and it is only when placing them on a chalk that they are separated, possibly provided with an inscription or a decoration and a barcode, then strung on the chalk and heat-shrunk on it.
- the lines of weakness 5, 6 may be formed by any other means allowing easy tearing along these lines and not by a dotted perforation thereof.
- the longitudinal weakening lines 6 can be placed anywhere on the circumference of the protective sleeve 3 and not necessarily on either side of the longitudinal weld thereof.
- the protective sleeve 3 comprises a tear strip 8 welded or bonded to the internal surface of the sleeve between the longitudinal weakening lines 6.
- This tear strip 8 is obviously cut by the openings 7.
- the openings 7 combined or not with the tear strip 8 constitute gripping means and tear-off allowing easy removal, section after section, of the protective sleeve.
- Figures 5 and 6 illustrate a second embodiment of the protective sleeve for chalk according to the invention.
- the protective sleeve 3 is produced from a plastic sheet 10 folded back on itself to form a tube. Near a first fold, the plastic strip is glued or welded to itself at 11 so that a flag 12 of a few millimeters remains free inside the tube thus formed.
- a tear strip 14 is glued or welded inside the tube. The tear tape 14 is affixed before bonding.
- a first network of weakening lines is formed by pre-cutouts in longitudinal dotted lines 15, 15a arranged on either side of the tear strip 14.
- a second network of lines weakening is constituted by transverse dotted precuts 16, closed on themselves, pre-cutting the tube into several successive sections. These pre-cuts 16 have a recess at the tear strip 14 thus constituting a gripping flap or tab 17 facilitating the tearing of a section of the protective sleeve.
- These pre-perforations 16 also pass through the tear strip 14.
- the gripping and tear off means consist of the tongues 17 and the tear strip 14.
- the networks of lines of weakness can be achieved by weakening the wall of the sleeve or any other suitable means rather than dotted pre-perforations.
- the retractable sleeve covers part of the back surface of the chalk. By heat-shrinking, we get a return of the wall of the sleeve, slightly longer than the chalk. This protection of the rear face of the chalk is important in order to avoid soiling and soiling of the machines, in particular packaging of the chalks, and thus avoid significant downtime due to the cleaning of these machines.
Landscapes
- Packages (AREA)
- Wrappers (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH126898 | 1998-06-11 | ||
CH126898 | 1998-06-11 | ||
CH58199 | 1999-03-26 | ||
CH58199 | 1999-03-26 | ||
PCT/IB1999/001059 WO1999064253A1 (fr) | 1998-06-11 | 1999-06-09 | Craie munie d'un manchon protecteur et manchon protecteur thermoretractable |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1084042A1 true EP1084042A1 (fr) | 2001-03-21 |
Family
ID=25685024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99922432A Withdrawn EP1084042A1 (fr) | 1998-06-11 | 1999-06-09 | Craie munie d'un manchon protecteur et manchon protecteur thermoretractable |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1084042A1 (fr) |
JP (1) | JP2002517342A (fr) |
WO (1) | WO1999064253A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10369834B2 (en) | 2017-10-24 | 2019-08-06 | Jacob Landers | Crayon wrapping system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE510035C (de) * | 1930-10-15 | Irmgart Morgan Geb Kliemke | Tafelkreide | |
DE103501C (fr) * | ||||
US1761407A (en) * | 1929-05-25 | 1930-06-03 | Blaisdell Pencil Company | Pencil |
US2205907A (en) * | 1940-02-20 | 1940-06-25 | John H Oxley | Crayon holder |
JPS527227Y2 (fr) * | 1974-09-06 | 1977-02-16 | ||
GB2227978B (en) * | 1989-02-10 | 1992-10-14 | Ofrex Group Holdings Plc | Improvements in or relating to an artist's pastel or chalk |
DE4301610C2 (de) | 1993-01-22 | 1996-08-14 | Bosch Gmbh Robert | Schlagschrauber |
-
1999
- 1999-06-09 WO PCT/IB1999/001059 patent/WO1999064253A1/fr not_active Application Discontinuation
- 1999-06-09 EP EP99922432A patent/EP1084042A1/fr not_active Withdrawn
- 1999-06-09 JP JP2000553291A patent/JP2002517342A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO9964253A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2002517342A (ja) | 2002-06-18 |
WO1999064253A1 (fr) | 1999-12-16 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
Effective date: 20001130 |
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17Q | First examination report despatched |
Effective date: 20010608 |
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GRAH | Despatch of communication of intention to grant a patent |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20010903 |