EP3956150A1 - Extension pour crayons avec mines sujettes à l'usure - Google Patents

Extension pour crayons avec mines sujettes à l'usure

Info

Publication number
EP3956150A1
EP3956150A1 EP20721414.9A EP20721414A EP3956150A1 EP 3956150 A1 EP3956150 A1 EP 3956150A1 EP 20721414 A EP20721414 A EP 20721414A EP 3956150 A1 EP3956150 A1 EP 3956150A1
Authority
EP
European Patent Office
Prior art keywords
extension
cross
section
length
pin
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.)
Pending
Application number
EP20721414.9A
Other languages
German (de)
English (en)
Inventor
Manriko PUST
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3956150A1 publication Critical patent/EP3956150A1/fr
Pending legal-status Critical Current

Links

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
    • B43K23/10—Protecting means, e.g. caps for pencils
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
    • B43K25/02—Clips

Definitions

  • the invention relates to the extension of partially or highly used pencils.
  • German patent application 103216 of 1898 describes a sleeve for slate pins in which the slate pins are held by means of resilient notches. Also known is the solution according to German utility model 1 770 517, which proposes inserting a new pin over its entire length into a metal sleeve. This metal shell has a slot so that a pin that has been pushed in too far can be pushed out again using a knife or nail.
  • DE 20 2010 018 125 specifies an actuating means comprising an elongated cavity and an opening to the environment in connection with the cavity, which can hold a correspondingly elongated object such as e.g. can at least partially pick up a carpenter's pencil and hold it.
  • This actuating means is used in a tool for use in installing a vapor barrier apron, wherein the vapor barrier apron comprises a series of surface elements including side surface elements, which extend substantially along a longitudinal axis, and upper or comprises lower surface elements extending substantially along a lateral axis perpendicular to the longitudinal axis, each
  • the insertion means comprising a surface for exerting pressure and sliding on the installation means and being connected to the actuation means at at least one point.
  • a writing instrument holder which protects the body of a writing instrument and enables the operator to use the writing instrument for so long and keep it until it becomes too short to otherwise effectively use it.
  • This writing instrument holder is formed from a container with an opening at the upper end, an opening at the lower end, a plurality of incisions next to the opening at the lower end and a longitudinal opening in the longitudinal direction of the container.
  • a pen extension made from plastic by VELUX is only about 7.5 cm long and, compared to a pen, has a significantly larger, rectangular cross-sectional area, which does not significantly improve the handling of particularly shortened pens.
  • this extension has an unfavorably shaped, stiff clamp, with which the previously described problems of insertion and accessibility are only partially solved.
  • the object of the invention is to propose a solution which allows a quick, familiar and mostly intuitive use of shortened pens without restrictions.
  • these images are based on a carpenter's pencil, for all other pencils with leads that wear out the shape is the
  • Figure 1.1 shows the lower, open end of the extension for pins with wearing leads with the detail, for example, of two slots 2 of appropriate length in the longitudinal direction in the lateral surface,
  • Figure 1.2 shows in detail a retaining spring 5
  • FIG. 1.3 shows in detail the cap 6 with the part of the lock 7a arranged on the cap 6 and the clamp (clip) 8 in the joined position
  • FIG. 1.4 shows in detail the cap 6 with the part of the lock arranged on the cap 6 7a and the clamp (clip) 8 in a non-joined position.
  • Figure 2 shows the extension for pencils with wear leads in section
  • Figure 2.1 shows in detail a retaining spring 5
  • Figure 2.2 shows the section A-A through the extension for pins
  • FIG. 2.3 shows a section through the cap 6 with the magnet 9 visible.
  • the extension for carpenter pencils is preferably realized by a thin-walled hollow profile made of plastic with an appropriate length, the inner cross-section of which is adapted to the shape of the common pencil cross-sections. To facilitate insertion, to compensate for manufacturing tolerances of the pins with regard to the cross-sectional area and to adequately fix the pin in the extension, the following are listed below
  • the extension at the lower, open end has one or more slots 2 of suitable length in the longitudinal direction
  • bottom means the side of the extension on which the sharpened end of the pen is located
  • top means the other side accordingly.
  • the height of the elevations 4, which can increase somewhat in the insertion direction of the pin, is chosen so that they slightly notch the pin when it is inserted.
  • the height of the elevations 4 on the side of the extension on which the pin is inserted is reduced linearly to zero over a suitable length 4a.
  • Partial areas of the outer surface of the extension referred to here as retaining springs 5, are located, which are connected to the remaining outer surface on the side towards the upper extension end and are separated from this in the remaining area. When the pen is inserted, these retaining springs 5 are pressed elastically outwards.
  • the upper, open end of the extension can be closed with a lockable cap 6, the end surface of which corresponds to the outer cross-sectional area of the
  • Extension corresponds and on which there is a perpendicular piece of a hollow profile with an outer cross-section that corresponds to the inner cross-section of the extension, and which has a device for locking the cap 6 in the extension 1, consisting of elements 7a and 7b to be joined.
  • a clip 8 can be pushed and fixed between the extension 1 and the end face of the cap 6.
  • the arrangement of a magnet 9 in the cap 6 becomes difficult to lift

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Clips For Writing Implements (AREA)

Abstract

L'invention concerne une extension (1) pour des crayons avec des mines sujettes à l'usure, constituée d'un profilé creux à paroi mince de longueur appropriée, dont la section transversale intérieure est adaptée à la forme de la section transversale habituelle du crayon, et comprenant, du côté de l'extension sur lequel se trouve l'extrémité pointue du crayon, une ou plusieurs fentes (2) de longueur appropriée dans le sens longitudinal de la surface extérieure, ainsi qu'une légère réduction (3) linéaire de la section transversale sur la longueur de la fente ou des fentes vers l'extrémité. Des protubérances (4) longitudinales sont réalisées sous la forme de prismes triangulaires, carrés et/ou semi-circulaires, qui sont réalisés dans un nombre, une configuration et une longueur appropriés en fonction de la section transversale du crayon et sont tournés vers l'intérieur. La hauteur des protubérances (4), qui peut légèrement augmenter dans le sens d'insertion du crayon, est sélectionnée de façon à ce que celles-ci entaillent légèrement le crayon lors de l'insertion, que la hauteur de ces protubérances (4), du côté de l'extension où le crayon est inséré, soit réduite à zéro de façon linéaire sur une longueur appropriée (4a) et qu'à la surface intérieure de l'extension (1), des ressorts de retenue (5) saillants ou recourbés vers l'intérieur soient disposés dans un nombre et un agencement appropriés, lesdits ressorts étant reliés aux autres surfaces externes sur le côté vers l'extrémité supérieure de l'extension, et séparées de celles-ci dans la zone restante.
EP20721414.9A 2019-04-18 2020-04-15 Extension pour crayons avec mines sujettes à l'usure Pending EP3956150A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019002839.2A DE102019002839B4 (de) 2019-04-18 2019-04-18 Verlängerung für Stifte mit verschleißenden Minen
PCT/EP2020/025168 WO2020211979A1 (fr) 2019-04-18 2020-04-15 Extension pour crayons avec mines sujettes à l'usure

Publications (1)

Publication Number Publication Date
EP3956150A1 true EP3956150A1 (fr) 2022-02-23

Family

ID=70464971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20721414.9A Pending EP3956150A1 (fr) 2019-04-18 2020-04-15 Extension pour crayons avec mines sujettes à l'usure

Country Status (4)

Country Link
US (1) US11760123B2 (fr)
EP (1) EP3956150A1 (fr)
DE (1) DE102019002839B4 (fr)
WO (1) WO2020211979A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE103216C (fr)
DE1770517U (de) 1958-04-29 1958-07-17 Walter Carstens Bleistifthalter fuer zimmermannsbleistift.
CH475709A (de) 1967-06-08 1969-09-15 Ciba Geigy Verwendung von Benzimidazolverbindungen zum antimikrobiellen Ausrüsten bzw. zum Schützen von Textilien gegen schädliche Mikroorganismen
US5779381A (en) * 1997-05-20 1998-07-14 Muelver; Vance J. Lockable crayon holder
US6276854B1 (en) * 1998-12-17 2001-08-21 Eric Mullins Apparatus for holding a writing utensil
US6663305B2 (en) * 2002-01-07 2003-12-16 Peter D. Poulos Multiple marker holder
DK177565B1 (en) 2009-03-17 2013-10-21 Vkr Holding As Vapour barrier collar, method for producing a vapour barrier collar and method for mounting a vapour barrier collar
US8408832B2 (en) * 2009-08-14 2013-04-02 Scott E. Andochick Adjustable length pen holder
DE102013013146A1 (de) * 2013-08-08 2015-02-12 Gerhard Moeck Köcher für einen Stift
DE202015100395U1 (de) 2015-01-28 2016-04-29 Gerhard Möck Stiftköcher zur Aufbewahrung eines Stifts

Also Published As

Publication number Publication date
DE102019002839B4 (de) 2021-10-14
DE102019002839A1 (de) 2020-10-22
US11760123B2 (en) 2023-09-19
WO2020211979A1 (fr) 2020-10-22
US20220203751A1 (en) 2022-06-30

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