EP3074240A1 - Magnetic pen - Google Patents

Magnetic pen

Info

Publication number
EP3074240A1
EP3074240A1 EP14800149.8A EP14800149A EP3074240A1 EP 3074240 A1 EP3074240 A1 EP 3074240A1 EP 14800149 A EP14800149 A EP 14800149A EP 3074240 A1 EP3074240 A1 EP 3074240A1
Authority
EP
European Patent Office
Prior art keywords
pen
magnetic
barrel
constraint means
pen according
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Withdrawn
Application number
EP14800149.8A
Other languages
German (de)
French (fr)
Inventor
Sergio Santini
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.)
Premec SA
Original Assignee
Premec SA
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 Premec SA filed Critical Premec SA
Publication of EP3074240A1 publication Critical patent/EP3074240A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00—Combinations of writing implements with other articles
    • 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
    • B43K23/001—Supporting means
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00—Combinations of writing implements with other articles
    • B43K29/18—Combinations of writing implements with other articles with hand tools, e.g. erasing knives
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/039—Accessories therefor, e.g. mouse pads
    • G06F3/0393—Accessories for touch pads or touch screens, e.g. mechanical guides added to touch screens for drawing straight lines, hard keys overlaying touch screens or touch pads

Definitions

  • the present invention belongs to the field of the pens and in general belongs to a magnetic pens susceptible of being physically associable to cases of electronic portable devices like for example and in a non-limiting extent cellular phones or palmtop computers like tablets or similar.
  • the pens of a known type comprise a principal a body or barrel 1 within which is introduced a cartridge 2 in turn containing ink, conceived for exiting in correspondence of a point 3 from a writing element 4 that can be typically a ball point (as depicted in figure 1 and in figure 2) or a nib or a pen point.
  • the ink which is contained in the cartridge 2 can be with a solvent basis (therefore being characterized by a viscosity similar to that of the honey) or water based (characterized by a lower viscosity that the oil-based ink).
  • the ink with a solvent basis is typically contained in a small tube while the water one can be contained both in a small tube (gel ink), and in a fiber pad or in contrast freely contained in a reservoir (free-ink system).
  • the pens can have either a closure cap 5' for the barrel 1 , or, as it is illustrated in figure 2, a movement element of the assembly cartridge 2 - writing element 4, which is called “mechanism”, commonly realized by means of a hollow closure cap 5", wherein slides button 6 that, once pushed, allows to move the assembly cartridge 2 - writing element 4 between a first resting position or retracted position and a second operative position of writing.
  • a closure cap 5' for the barrel 1 or, as it is illustrated in figure 2, a movement element of the assembly cartridge 2 - writing element 4, which is called “mechanism”, commonly realized by means of a hollow closure cap 5", wherein slides button 6 that, once pushed, allows to move the assembly cartridge 2 - writing element 4 between a first resting position or retracted position and a second operative position of writing.
  • the traditional pens When being without the cartridge - writing element motion assembly, the traditional pens are provided with an hollow cap 7, placeable in correspondence of the point 3 so as to cover the writing element 4 from dirt and, in case, prevent its drying; the cap l 7 is typically susceptible of being positioned also in correspondence of the rear portion of the pen itself, so as to not risking loosing it during the writing.
  • the cap typically comprises a clip 8 that allows to detachably fasten the pen for example to a sheet of paper or in a pocket.
  • the clip 8 is typically oriented in a direction that is parallel to the direction of maximum extension of the barrel 1 and, according to the cases, can extend towards the point or towards the rear portion of the pen.
  • the clip 8 is also present in the pens with a cartridge - writing element motion assembly as it is illustrated in figure 2; in this case, it is fastened to the hollow closure cap 5", and extends always parallel to the body of barrel 1 in direction of the point 3.
  • portable electronic devices like for example and in a non-limiting extent smartphones or tablet; for some types of users the coupling of a portable electronic device with a pen is become common in the working field, especially due to the great diffusion of those electronic devices and in particular to the combination of use with a pen or in general with a writing instrument.
  • the Applicant has found that magnetically coupling a pen to a cover allows for solving the limit induced by the presence of pockets or pen retention rings.
  • the Applicant has found that realizing a magnetic pen susceptible of being detachably engageable by said magnet present on the covers allows to solve the limitation induced by the possible coupling of a pen with a barrel of a defined diameter and the corresponding ring which is present on the covers.
  • Document US2009/0035050 shows a pen capable of interacting with a ring-shaped magnet which is positioned in corresponding of a base; the ring-shaped magnet interacts with the point of the pen, that in turn presents a magnet of an opposite polarity, so as to rest balanced and standing.
  • Document DE201 13646 shows a pen that inside the body encloses an elongated magnetic element.
  • a pen comprising: a body or barrel, containing therein an ink reservoir; and a writing element, mechanically jointed to said ink reservoir, positioned in correspondence of a point of said pen and wherein said pen comprises magnetic constraint means, said means being configured for detachably engage by means of magnetic interaction with retention elements of a cover of an external electronic device; said retention elements they too being susceptible of exterting a magnetic interaction with said constraint means and in that said magnetic constraint means are integrated in said body or barrel (1 0) that is realized in a composite material comprising said magnetic constraint means.
  • Advantageously magnetic constraint means comprise a composite plastic material comprising at least in part a ferromagnetic material.
  • said ferromagnetic material is mixed inside composite plastic material.
  • said magnetic constraint means comprise at least in part a polymeric composite plastic material of a polyamidic type.
  • said ferromagnetic material is selected among at least one of the following materials: iron, steel, cadmium, nickel, cobalt.
  • said ferromagnetic material comprises magnetite.
  • said ferromagnetic material comprises a magnetic susceptibility coefficient Xm equal or higher than 5.
  • said magnetic constraint means are integrally contained into said body or barrel.
  • said body or barrel is realized with said composite material.
  • said body or barrel comprises therein said constraint means.
  • said body or barrel comprises a surface oriented for a maximum extension direction along a longitudinal axis defining a length of said body or barrel, and wherein said body or barrel comprises therein said magnetic constraint means in a form of at least one element extending inside said body or barrel for a portion comprised between 5% and 70% of its length.
  • the pen further comprises and an hollow cap susceptible of housing at least said writing element and further comprising said constraint means.
  • said constraint means are integrally contained into a body of said cap.
  • said cap extends for a direction of maximum length along a longitudinal axis defining a length of said cap and wherein said cap comprises therein said magnetic constraint means in form of at least one element that extends for at least part of its length.
  • the pen according to the present invention comprises and an interaction element susceptible of interacting with digitizers of said external electronic device.
  • the interaction element is positioned in correspondence of an extremity of a cap of said pen.
  • said constraint means are configured for developing a force magnetic attraction with said retention elements of said cover which is equal or higher than the weight to which said pen is subject.
  • FIG. 1 shows a first embodiment of a pen of a known type, comprising a cap
  • FIG. 2 shows a second embodiment of a pen of a known type, having a cartridge - writing element motion assembly
  • FIG. 3 shows a first embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are integrally contained in the body or barrel;
  • FIG. 4 shows a second embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are comprised inside the body or barrel;
  • FIG. 5 shows a third embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are integrally contained or barrel and wherein the cartridge - writing element assembly are moved by a motion element;
  • FIG. 6 shows a fourth embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are comprised inside the body or barrel and wherein the cartridge - writing element assembly are moved by a motion element;
  • - figure 7 shows a fifth embodiment of a pen according to the present invention, wherein said constraint means by means of magnetic attraction are integrally comprised in the body of the cap;
  • - figure 8 shows a sixth embodiment of a pen according to the present invention, wherein said constraint means by means of magnetic attraction are introduced inside the body of the cap;
  • - figures 9-1 1 respectively show a first, second and third microscope view of the plastic-ferromagnetic composite material that composes at least partially the body or barrel of the pen which is object of the present invention.
  • FIG 3 it is represented a magnetic pen having a principal body or barrel 10 wherein is introduced a cartridge 20 in turn containing ink targeted for exiting in correspondence of a point 30 from a writing element 40 that can be typically and in a non-limiting extent a ball point (as represented in the annexed figures), or a felt nib or a pen point.
  • a writing element 40 can be typically and in a non-limiting extent a ball point (as represented in the annexed figures), or a felt nib or a pen point.
  • the body or barrel 10 comprises a surface that develops in a direction of maximum extension along an axis X, which therefore determinates its length.
  • the pen object of the present invention can be realized channelings or knurling and can be applied layers of material for example being gummy susceptible of increasing the grip with the fingers of the user. Therefore, even if the form of the pen object of the present invention is represented as being substantially cylindrical, that form shall not be intended as limiting, since thanks to the peculiar features of the material with which the body or barrel 10 is realized, the pen can assume the most various shapes without any limitation.
  • the ink which is contained in the cartridge 2 can be with solvent-based (therefore being characterized by a viscosity similar to the one of the honey) or water- based (characterized by a viscosity which is lower than the oil-based ink).
  • the solvent-based ink is typically contained in a small tube while the water one can be contained both in a small tube (gel ink), or in a fiber pad or in contrast be freely contained in a reservoir (free-ink system).
  • the pens can have either closure cap 50' of the barrel 1 , or, as it is illustrated in figure 5 or in figure 6, an element (cam mechanism) of motion of the assembly cartridge 20 - writing element 40, which is commonly realized by an hollow closure cap 50", within which slides a button 60 that, once pressed, allows for moving the assembly cartridge 20 - writing element 40 between a first resting position or retracted position and a second operative writing position wherein the writing element extends outside the point 30.
  • the traditional pens When being without the movement assembly cartidge - writing element, the traditional pens are provided with an hollow cap 70, positionable in correspondence of the point 30 so as to cover the writing element 40 from dirt and, in case, preventing its drying; the cap 70 is typically susceptible of being positioned also in correspondence of the rear portion of the pen itself, so as to not risking to lose it during the writing.
  • the cap typically comprises a clip 80 that allows for detachably fasten the pen for example to a sheet of paper or in a pocket.
  • the clip 80 is typically oriented in a direction which is parallel to the direction of maximum extension of the barrel 10 and, according to the cases, can extend towards the point or towards the rear portion of the pen.
  • the clip 80 is also present in the pens with the cartridge - writing element motion assembly (mechanism) of as it is the case shown in figure 2; in this case, it is fastened to the hollow closure cap 50" , and extends always parallel to the body of the barrel 10 in direction of the point 30.
  • the cartridge - writing element motion assembly (mechanism) of as it is the case shown in figure 2; in this case, it is fastened to the hollow closure cap 50" , and extends always parallel to the body of the barrel 10 in direction of the point 30.
  • the pen according to the present invention is principally configured for physically or mechanically coupling by means of a magnetic interaction with retention elements of a case of an external electronic device that according to the present invention shall be intended for example as a cellular phone, a smartphone, a portable computer or a tablet PC, each one presenting a screen, preferably of a touch-sensitive type, and therefore provided with a digitizer (for example and in a non-limiting extent of a capacitive or resistive type) susceptible of causing the sending of a touch signal to a data processing unit of said external electronic device when being touched or lightly touched either by a user's finger or by an element provided with a sensitive terminal portion and susceptible of causing the interaction with said digitizer.
  • a digitizer for example and in a non-limiting extent of a capacitive or resistive type
  • the pen according to the present invention comprises magnetic constraint means that in a first embodiment of the pen shown in figure 3 are integrally comprised inside the body or barrel 10; this implies that the material of the body or barrel 10 itself is the one that houses said magnetic constraint means, that as it will be better described in the course of the present description, will present at least a component of a ferromagnetic type.
  • the material of the body or barrel 10 is a composite plastic material wherein the ferromagnetic material is uniformly mixed, so as to form a unique composite material that has flexibility characteristics and for example of a relative softness to the touch typical of the plastic, together with the characteristics of magnetic attraction which is typical of the ferromagnetic materials.
  • a first preferred and non-limiting embodiment of the composite plastic material of the body or barrel 10 is the one that is reported in the following characteristics :
  • Izod impact strength notched 80 * 10 * 4 +23°C : 5 kJ/m A 2 (according to Standard ISO 180/1 A)
  • a second preferred and non-limiting embodiment of the composite plastic material of the body or barrel 10 is the one that is reported in the following characteristics:
  • a third preferred and non-limiting embodiment of the composite plastic material of the body or barrel 10 is the one that is reported in the following characteristics:
  • a fourth preferred and non-limiting embodiment of the composite plastic material of the or barrel 1 0 is the one that is reported in the following characteristics:
  • the aforementioned composite material allows for realizing the pen in a faster way, for example by fusion or extrusion, without complex operations of introduction of magnets or bodies inside the body or barrel 10, that would lead to a lengthening of the production timings and to an higher cost. Nonetheless, if not firmly blocked, the magnets or bodies inside the body or barrel 10 could interfere with the cartridge of the ink or move freely.
  • the magnetic constraint means that can be passive (not magnetized as the case of the iron) or active (as the case of magnetite), are integral to the body or barrel 10 in the sense that they are firmly hinged into the body or barrel 10 itself, or yet are contained in a single composite material that is a mixture of plastics and ferromagnetic material.
  • mixture shall be intended that the plastic material and the ferromagnetic one are dispersed in an homogeneous mixture, or equivalently, that the ferromagnetic material is uniformly distributed along the body of the pen, even in a form not micronized but for example on one or more micro disks or granules which are completely enveloped in the plastic body and positioned at a constant distance one with respect to the other.
  • the absence of magnetically active materials like the magnetite renders the pen object of the present invention compatible with all those devices whose functioning could be altered by magnetic sources.
  • the pen so realized can therefore be positioned in a secure mode close to credit cards, hard-disks with magnetic plates, tickets with magnetic band (ski pass, bus tickets), or magnetic sensors without damaging them.
  • the magnetic constraint means are housed inside the body or barrel 10, and are preferably but in a non-limiting extent represented by a cylindrical element 90, which is fixed on an internal wall of the body or barrel 10 by means of a bonding and/or by means of a introduction in a recess of the wall itself.
  • Figures 5 and 6 show respectively a third and fourth embodiment of the pen according to the present invention; in particular the pen which is object of the third and fourth embodiment is characterized by having a mechanism of movement of the assembly cartridge 20 - writing element 40, in particular comprising an activation button 60; the mechanism of movement allows for moving the cartridge - writing element assembly between a first resting position wherein the writing element 40 is comprised inside the point 30 and a second use position wherein the writing element 40 extends outside said point 30.
  • the third embodiment of the pen according to the present invention presents magnetic constraint means that are integrally comprised inside the body or barrel 10; furthermore, similarly to what has been described for the second embodiment, in the third embodiment of the pen according to the present invention the magnetic constraint means are housed inside the body or barrel 10, and are represented preferably but in a non-limiting extent by a cylindrical element 90, fixed on an internal wall of the body or barrel 10 by means of a bonding and/or by means of an introduction in a recess of the wall itself.
  • cylindrical element 90 can be equivalently substituted by similar elements, for example and in a non-limiting extent a plurality of annular elements. Furthermore, in the particular case of figure 4 the cylindrical element 90 is positioned in a front portion of the body or barrel 10, but one time more it can be installed in a central or rear position for example for supporting the balancing of the pen.
  • the extension of the cylindrical element 90 is such as to occupy a part of the length of the body or barrel 10 comprised between the interval 5 ⁇ 70% of its length.
  • a fifth and sixth embodiment of the pen according to the present invention are finally shown in figure 7 and in figure 8.
  • the magnetic constraint means are present on the cap and not on the body or barrel of the pen.
  • the fifth embodiment of the pen according to the present invention is characterized in that the cap 70 comprises and a body 71 wherein said magnetic constraint means are integrally contained, while in the sixth embodiment of the pen according to the present invention, the constraint means are on the other hand contained inside the cavity of the body of the cap as a self-standing element, and in detail are preferably realized by means of a cylindrical element 91 in a material which is at least partially ferromagnetic.
  • the cap 70 comprises an interaction element with digitizers of the aforementioned external electronic device.
  • the interaction element that in detail is installed in correspondence of an extremity of the cap 70, can be realized by means of a capacitive element when the digitizer is in turn capacitive; in contrast it can be a rounded element susceptible of being used for exerting a slight pressure on the surface of the digitizer, in case this last is in contrast of a resistive type.
  • the interaction element with the digitizers shall be realized in a form and with a material such as to not to line or anyway damage the digitizer itself.
  • the presence of the element of interaction with the digitizers allows for having a pen that has a double function of writing and interaction for example with the touch-screen of the tablet PC, that is associable by means of magnetic interaction to its cover and allows for having also a function of interaction with the screen without implying that the user shall be provided with an interaction element different than the pen itself.
  • the element of interaction with the digitizers can be equivalent ⁇ contained in the rear portion of the pen in correspondence of the rear tap 50' or, alternatively, on the button 60 if present.
  • the magnetic constraint means are realized at least in part in a ferromagnetic material, preferably selected among at least one of the following materials: iron, steel, cobalt, nickel magnetite.
  • the second part of the material with which are realized the magnetic constraint means is preferably plastic of a polymeric polyamidic type.
  • the magnetic constraint means be realized in magnetite, that as known presents a natural magnetic charge, it will be sufficient that the retention elements of the case of the external electronic device are at least ferrous for being able to develop a force of magnetic attraction with the pen according to the present invention; in such a case the pen which is object of the present invention, for exerting a magnetic interaction with the cover, does not necessitate that this last shall be provided with a magnet.
  • the magnetic constraint means present a ferromagnetic material not being provided with an own magnetization
  • the retention elements of the cover of the external electronic device shall be provided with an own magnetization
  • the ferromagnetic material with which the magnetic constraint means are realized shall have a magnetic susceptibility coefficient x m higher or equal to 5.
  • the fact of having magnetic constraint means comprising a plastic - ferromagnetic composite material, is of a significant advantage in case said means shall be integral part of the body barrel 10.
  • the pen according to the present invention can be realized for example with luxury or engraved plastics so as to be difficultly compatible with a ferromagnetic compound, without losing its function of magnetic interaction with the cover of the external electronic device.
  • the amount of ferromagnetic material in the compound or, equivalently, the extension of the cylindrical elements 90, 91 respectively in the body or barrel and in the cap shall be such as to cause - when in contact with the cover of the external electronic device - a force of magnetic interaction equal or higher than the weight to which the pen itself is subject.
  • said force of magnetic interaction is significantly higher than the weight to which the pen is subject, to the end of ensuring an optimal adhesion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pens And Brushes (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

A pen, comprising: a body or barrel (10), containing inside an ink reservoir (20); and a writing element (40), mechanically jointed to said ink reservoir (20), positioned in correspondence of a point (30) of said pen. The pen comprises magnetic constraint means, said means being configured for being detachably engageable by means of a magnetic interaction with retention elements of a case of an external electronic device; said retention elements they also being susceptible of exerting a magnetic interaction with said constraint means.

Description

"MAGNETIC PEN"
Field of the technique
The present invention belongs to the field of the pens and in general belongs to a magnetic pens susceptible of being physically associable to cases of electronic portable devices like for example and in a non-limiting extent cellular phones or palmtop computers like tablets or similar.
Background art
As it is illustrated in figure 1 , the pens of a known type comprise a principal a body or barrel 1 within which is introduced a cartridge 2 in turn containing ink, conceived for exiting in correspondence of a point 3 from a writing element 4 that can be typically a ball point (as depicted in figure 1 and in figure 2) or a nib or a pen point.
In particular, the ink which is contained in the cartridge 2 can be with a solvent basis (therefore being characterized by a viscosity similar to that of the honey) or water based (characterized by a lower viscosity that the oil-based ink). The ink with a solvent basis is typically contained in a small tube while the water one can be contained both in a small tube (gel ink), and in a fiber pad or in contrast freely contained in a reservoir (free-ink system). In correspondence of his rear portion, the pens can have either a closure cap 5' for the barrel 1 , or, as it is illustrated in figure 2, a movement element of the assembly cartridge 2 - writing element 4, which is called "mechanism", commonly realized by means of a hollow closure cap 5", wherein slides button 6 that, once pushed, allows to move the assembly cartridge 2 - writing element 4 between a first resting position or retracted position and a second operative position of writing.
When being without the cartridge - writing element motion assembly, the traditional pens are provided with an hollow cap 7, placeable in correspondence of the point 3 so as to cover the writing element 4 from dirt and, in case, prevent its drying; the cap l 7 is typically susceptible of being positioned also in correspondence of the rear portion of the pen itself, so as to not risking loosing it during the writing. The cap typically comprises a clip 8 that allows to detachably fasten the pen for example to a sheet of paper or in a pocket. In detail, the clip 8 is typically oriented in a direction that is parallel to the direction of maximum extension of the barrel 1 and, according to the cases, can extend towards the point or towards the rear portion of the pen. The clip 8 is also present in the pens with a cartridge - writing element motion assembly as it is illustrated in figure 2; in this case, it is fastened to the hollow closure cap 5", and extends always parallel to the body of barrel 1 in direction of the point 3. The Applicant has observed that, nowadays, more and more frequently the pens are physically and/or mechanically coupled to portable electronic devices, like for example and in a non-limiting extent smartphones or tablet; for some types of users the coupling of a portable electronic device with a pen is become common in the working field, especially due to the great diffusion of those electronic devices and in particular to the combination of use with a pen or in general with a writing instrument. In particular for this reason in the past have been developed covers for portable electronic devices that possess pen retention rings, susceptible of housing therein the barrel 1 ; anyway the Applicant has observed that said rings have the drawback of having a predefined diameter, and therefore do not result associable with any type of pen, but only to those whose barrel can be introduced therein by being detachably associated for friction.
The Applicant has further observed that often said covers are provided with a openable portion for allowing the user to visualize the screen of the portable electronic device, and are provided with a magnet got allowing the retention of said openable portion on the resting part of the cover.
The Applicant has found that magnetically coupling a pen to a cover allows for solving the limit induced by the presence of pockets or pen retention rings. In particular, the Applicant has found that realizing a magnetic pen susceptible of being detachably engageable by said magnet present on the covers allows to solve the limitation induced by the possible coupling of a pen with a barrel of a defined diameter and the corresponding ring which is present on the covers.
Document US2003/128193 shows a pen with magnetic elements capable of interacting with electronic devices.
Document US2009/0035050 shows a pen capable of interacting with a ring-shaped magnet which is positioned in corresponding of a base; the ring-shaped magnet interacts with the point of the pen, that in turn presents a magnet of an opposite polarity, so as to rest balanced and standing.
Document DE201 13646 shows a pen that inside the body encloses an elongated magnetic element.
Summary of the invention
According to the present invention is therefore realized a pen comprising: a body or barrel, containing therein an ink reservoir; and a writing element, mechanically jointed to said ink reservoir, positioned in correspondence of a point of said pen and wherein said pen comprises magnetic constraint means, said means being configured for detachably engage by means of magnetic interaction with retention elements of a cover of an external electronic device; said retention elements they too being susceptible of exterting a magnetic interaction with said constraint means and in that said magnetic constraint means are integrated in said body or barrel (1 0) that is realized in a composite material comprising said magnetic constraint means.
Advantageously magnetic constraint means comprise a composite plastic material comprising at least in part a ferromagnetic material.
In detail, said ferromagnetic material is mixed inside composite plastic material. Advantageously said magnetic constraint means comprise at least in part a polymeric composite plastic material of a polyamidic type. Specifically, said ferromagnetic material is selected among at least one of the following materials: iron, steel, cadmium, nickel, cobalt.
Advantageously said ferromagnetic material comprises magnetite.
In detail, said ferromagnetic material comprises a magnetic susceptibility coefficient Xm equal or higher than 5.
Advantageously said magnetic constraint means are integrally contained into said body or barrel.
Advantageously said body or barrel is realized with said composite material.
Alternatively or additionally, said body or barrel comprises therein said constraint means.
Advantageously said body or barrel comprises a surface oriented for a maximum extension direction along a longitudinal axis defining a length of said body or barrel, and wherein said body or barrel comprises therein said magnetic constraint means in a form of at least one element extending inside said body or barrel for a portion comprised between 5% and 70% of its length.
Advantageously the pen further comprises and an hollow cap susceptible of housing at least said writing element and further comprising said constraint means.
Advantageously, said constraint means are integrally contained into a body of said cap.
Advantageously, said cap extends for a direction of maximum length along a longitudinal axis defining a length of said cap and wherein said cap comprises therein said magnetic constraint means in form of at least one element that extends for at least part of its length. Anyway this shall not be imperative.
Advantageously, the pen according to the present invention comprises and an interaction element susceptible of interacting with digitizers of said external electronic device.
In detail, the interaction element is positioned in correspondence of an extremity of a cap of said pen. Advantageously, at the end, said constraint means are configured for developing a force magnetic attraction with said retention elements of said cover which is equal or higher than the weight to which said pen is subject. Description of the annexed figures
The invention will be hereinafter describe in a preferred embodiment by referring to the annexed figures wherein:
- figure 1 shows a first embodiment of a pen of a known type, comprising a cap;
- figure 2 shows a second embodiment of a pen of a known type, having a cartridge - writing element motion assembly;
- figure 3 shows a first embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are integrally contained in the body or barrel;
- figure 4 shows a second embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are comprised inside the body or barrel;
- figure 5 shows a third embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are integrally contained or barrel and wherein the cartridge - writing element assembly are moved by a motion element;
- figure 6 shows a fourth embodiment of a pen according to the present invention, wherein constraint means by means of magnetic attraction are comprised inside the body or barrel and wherein the cartridge - writing element assembly are moved by a motion element;
- figure 7 shows a fifth embodiment of a pen according to the present invention, wherein said constraint means by means of magnetic attraction are integrally comprised in the body of the cap; - figure 8 shows a sixth embodiment of a pen according to the present invention, wherein said constraint means by means of magnetic attraction are introduced inside the body of the cap;
- figures 9-1 1 respectively show a first, second and third microscope view of the plastic-ferromagnetic composite material that composes at least partially the body or barrel of the pen which is object of the present invention.
Detailed description of the invention.
Referring to figure 3, it is represented a magnetic pen having a principal body or barrel 10 wherein is introduced a cartridge 20 in turn containing ink targeted for exiting in correspondence of a point 30 from a writing element 40 that can be typically and in a non-limiting extent a ball point (as represented in the annexed figures), or a felt nib or a pen point.
The body or barrel 10 comprises a surface that develops in a direction of maximum extension along an axis X, which therefore determinates its length.
On the surface of the body or barrel 10 of the pen object of the present invention can be realized channelings or knurling and can be applied layers of material for example being gummy susceptible of increasing the grip with the fingers of the user. Therefore, even if the form of the pen object of the present invention is represented as being substantially cylindrical, that form shall not be intended as limiting, since thanks to the peculiar features of the material with which the body or barrel 10 is realized, the pen can assume the most various shapes without any limitation.
In particular, the ink which is contained in the cartridge 2 can be with solvent-based (therefore being characterized by a viscosity similar to the one of the honey) or water- based (characterized by a viscosity which is lower than the oil-based ink).
The solvent-based ink is typically contained in a small tube while the water one can be contained both in a small tube (gel ink), or in a fiber pad or in contrast be freely contained in a reservoir (free-ink system). In correspondence of its rear portion, the pens can have either closure cap 50' of the barrel 1 , or, as it is illustrated in figure 5 or in figure 6, an element (cam mechanism) of motion of the assembly cartridge 20 - writing element 40, which is commonly realized by an hollow closure cap 50", within which slides a button 60 that, once pressed, allows for moving the assembly cartridge 20 - writing element 40 between a first resting position or retracted position and a second operative writing position wherein the writing element extends outside the point 30.
When being without the movement assembly cartidge - writing element, the traditional pens are provided with an hollow cap 70, positionable in correspondence of the point 30 so as to cover the writing element 40 from dirt and, in case, preventing its drying; the cap 70 is typically susceptible of being positioned also in correspondence of the rear portion of the pen itself, so as to not risking to lose it during the writing. The cap typically comprises a clip 80 that allows for detachably fasten the pen for example to a sheet of paper or in a pocket. In detail, the clip 80 is typically oriented in a direction which is parallel to the direction of maximum extension of the barrel 10 and, according to the cases, can extend towards the point or towards the rear portion of the pen.
The clip 80 is also present in the pens with the cartridge - writing element motion assembly (mechanism) of as it is the case shown in figure 2; in this case, it is fastened to the hollow closure cap 50" , and extends always parallel to the body of the barrel 10 in direction of the point 30.
The pen according to the present invention is principally configured for physically or mechanically coupling by means of a magnetic interaction with retention elements of a case of an external electronic device that according to the present invention shall be intended for example as a cellular phone, a smartphone, a portable computer or a tablet PC, each one presenting a screen, preferably of a touch-sensitive type, and therefore provided with a digitizer (for example and in a non-limiting extent of a capacitive or resistive type) susceptible of causing the sending of a touch signal to a data processing unit of said external electronic device when being touched or lightly touched either by a user's finger or by an element provided with a sensitive terminal portion and susceptible of causing the interaction with said digitizer.
In detail, therefore, both the pen object of the present invention, and the retention elements of the cover are susceptible of having a reciprocal magnetic interaction. In detail, the pen according to the present invention comprises magnetic constraint means that in a first embodiment of the pen shown in figure 3 are integrally comprised inside the body or barrel 10; this implies that the material of the body or barrel 10 itself is the one that houses said magnetic constraint means, that as it will be better described in the course of the present description, will present at least a component of a ferromagnetic type.
In particular, the material of the body or barrel 10, is a composite plastic material wherein the ferromagnetic material is uniformly mixed, so as to form a unique composite material that has flexibility characteristics and for example of a relative softness to the touch typical of the plastic, together with the characteristics of magnetic attraction which is typical of the ferromagnetic materials.
In detail, a first preferred and non-limiting embodiment of the composite plastic material of the body or barrel 10 is the one that is reported in the following characteristics :
Mechanical characteristics
Flexual modulus: 4200 MPa (according to Standard ISO 178)
Flexual strength: 40 MPa (according to Standard ISO 178)
Tensile strength, break% 1 .30 (according to Standard ISO 527)
Tensile strength, break: 26 MPa (according to Standard ISO 178)
Impact
Izod impact strength, notched 80*10*4 +23°C : 5 kJ/mA2 (according to Standard ISO 180/1 A) Izod impact strength, notched 80*10*4 +23°C: 8 kJ/mA2 (according to Standard ISO 180/1 11)
Thermal characteristics
HDT/Af, 1 .8 MPa Flatw 80*1 0*4 sp=64mm: 90° (standard C)
Physical characteristics
Density 4.10 g/cm°3 (according to Standard ISO 1 183)
A second preferred and non-limiting embodiment of the composite plastic material of the body or barrel 10 is the one that is reported in the following characteristics:
Mechanical characteristics
Flexual modulus: 10500 MPa (according to Standard ISO 1 78)
Flexual strength: 160 MPa (according to Standard ISO 178)
Tensile strength, break% 1 .80 (according to Standard ISO 527)
Impact
Izod impact strength, notched 80*10*4 +23°C : 14 kJ/mA2 (according to Standard ISO 180/1 A)
Izod impact strength, notched 80*10*4 +23°C: 39 kJ/mA2 (according to Standard ISO 180/1 11)
Thermal characteristics
HDT/Af, 1 .8 MPa Flatw 80*1 0*4 sp=64mm: 130° (standard C)
Physical characteristics
Density 3.30 g/cm°3 (according to Standard ISO 1 183).
A third preferred and non-limiting embodiment of the composite plastic material of the body or barrel 10 is the one that is reported in the following characteristics:
Mechanical characteristics
Flexual modulus: 12000 MPa (according to Standard ISO 1 78)
Flexual strength: 220 MPa (according to Standard ISO 178)
Tensile strength, break% 1 .10 (according to Standard ISO 527)
Impact Izod impact strength, notched 80*10*4 +23°C : 14 kJ/mA2 (according to Standard ISO 180/1 A)
Izod impact strength, notched 80*10*4 +23°C: 54 kJ/mA2 (according to Standard ISO 180/1 11)
Thermal characteristics
HDT/Af, 1 .8 M Pa Flatw 80*1 0*4 sp=64mm: 130° (standard C)
Physical characteristics
Density 3.20 g/cm°3 (according to Standard ISO 1 183).
A fourth preferred and non-limiting embodiment of the composite plastic material of the or barrel 1 0 is the one that is reported in the following characteristics:
Mechanical characteristics
Flexual modulus: 15000 MPa (according to Standard ISO 1 78)
Flexual strength: 175 MPa (according to Standard ISO 178)
Tensile strength, break% 0.90 (according to Standard ISO 527)
Impact
Izod impact strength, notched 80*10*4 +23°C : 14 kJ/mA2 (according to Standard ISO 180/1 A)
Izod impact strength, notched 80*10*4 +23°C: 30 kJ/mA2 (according to Standard ISO 180/1 11)
Thermal characteristics
HDT/Af, 1 .8 MPa Flatw 80*1 0*4 sp=64mm: 130° (standard C)
Physical characteristics
Density 2.70 g/cm°3 (according to Standard ISO 1 183).
Advantageously, the aforementioned composite material allows for realizing the pen in a faster way, for example by fusion or extrusion, without complex operations of introduction of magnets or bodies inside the body or barrel 10, that would lead to a lengthening of the production timings and to an higher cost. Nonetheless, if not firmly blocked, the magnets or bodies inside the body or barrel 10 could interfere with the cartridge of the ink or move freely.
According to the present invention, therefore, the magnetic constraint means, that can be passive (not magnetized as the case of the iron) or active (as the case of magnetite), are integral to the body or barrel 10 in the sense that they are firmly hinged into the body or barrel 10 itself, or yet are contained in a single composite material that is a mixture of plastics and ferromagnetic material.
For the purposes of the present invention, therefore, as "mixture" shall be intended that the plastic material and the ferromagnetic one are dispersed in an homogeneous mixture, or equivalently, that the ferromagnetic material is uniformly distributed along the body of the pen, even in a form not micronized but for example on one or more micro disks or granules which are completely enveloped in the plastic body and positioned at a constant distance one with respect to the other.
Advantageously, further, the absence of magnetically active materials like the magnetite, renders the pen object of the present invention compatible with all those devices whose functioning could be altered by magnetic sources. The pen so realized can therefore be positioned in a secure mode close to credit cards, hard-disks with magnetic plates, tickets with magnetic band (ski pass, bus tickets), or magnetic sensors without damaging them.
Advantageously, using a composite material made in a mixture of plastics and ferromagnetic material provides for the most complete freedom of shapes with which it is possible to realize the pen object to the present invention; on the contrary this freedom would result limited by using magnetic inserts with a defined form. On the contrary, as illustrated in figure 4, the magnetic constraint means are housed inside the body or barrel 10, and are preferably but in a non-limiting extent represented by a cylindrical element 90, which is fixed on an internal wall of the body or barrel 10 by means of a bonding and/or by means of a introduction in a recess of the wall itself. Figures 5 and 6 show respectively a third and fourth embodiment of the pen according to the present invention; in particular the pen which is object of the third and fourth embodiment is characterized by having a mechanism of movement of the assembly cartridge 20 - writing element 40, in particular comprising an activation button 60; the mechanism of movement allows for moving the cartridge - writing element assembly between a first resting position wherein the writing element 40 is comprised inside the point 30 and a second use position wherein the writing element 40 extends outside said point 30.
Similarly to what has been described for the first embodiment, the third embodiment of the pen according to the present invention presents magnetic constraint means that are integrally comprised inside the body or barrel 10; furthermore, similarly to what has been described for the second embodiment, in the third embodiment of the pen according to the present invention the magnetic constraint means are housed inside the body or barrel 10, and are represented preferably but in a non-limiting extent by a cylindrical element 90, fixed on an internal wall of the body or barrel 10 by means of a bonding and/or by means of an introduction in a recess of the wall itself.
Both for what deals with the second embodiment, and for what deals with the fourth embodiment, it shall be clear that the cylindrical element 90 can be equivalently substituted by similar elements, for example and in a non-limiting extent a plurality of annular elements. Furthermore, in the particular case of figure 4 the cylindrical element 90 is positioned in a front portion of the body or barrel 10, but one time more it can be installed in a central or rear position for example for supporting the balancing of the pen.
The extension of the cylindrical element 90 is such as to occupy a part of the length of the body or barrel 10 comprised between the interval 5÷70% of its length.
A fifth and sixth embodiment of the pen according to the present invention are finally shown in figure 7 and in figure 8. In the special case, in the two embodiments therein illustrated, the magnetic constraint means are present on the cap and not on the body or barrel of the pen.
In detail, the fifth embodiment of the pen according to the present invention is characterized in that the cap 70 comprises and a body 71 wherein said magnetic constraint means are integrally contained, while in the sixth embodiment of the pen according to the present invention, the constraint means are on the other hand contained inside the cavity of the body of the cap as a self-standing element, and in detail are preferably realized by means of a cylindrical element 91 in a material which is at least partially ferromagnetic.
Optionally the cap 70 comprises an interaction element with digitizers of the aforementioned external electronic device. The interaction element, that in detail is installed in correspondence of an extremity of the cap 70, can be realized by means of a capacitive element when the digitizer is in turn capacitive; in contrast it can be a rounded element susceptible of being used for exerting a slight pressure on the surface of the digitizer, in case this last is in contrast of a resistive type. In any case, the interaction element with the digitizers shall be realized in a form and with a material such as to not to line or anyway damage the digitizer itself.
Advantageously, the presence of the element of interaction with the digitizers allows for having a pen that has a double function of writing and interaction for example with the touch-screen of the tablet PC, that is associable by means of magnetic interaction to its cover and allows for having also a function of interaction with the screen without implying that the user shall be provided with an interaction element different than the pen itself.
Even if described in association with the cap 70, the element of interaction with the digitizers can be equivalent^ contained in the rear portion of the pen in correspondence of the rear tap 50' or, alternatively, on the button 60 if present. As already mentioned throughout the above description, the magnetic constraint means are realized at least in part in a ferromagnetic material, preferably selected among at least one of the following materials: iron, steel, cobalt, nickel magnetite. The second part of the material with which are realized the magnetic constraint means is preferably plastic of a polymeric polyamidic type.
In detail, should the magnetic constraint means be realized in magnetite, that as known presents a natural magnetic charge, it will be sufficient that the retention elements of the case of the external electronic device are at least ferrous for being able to develop a force of magnetic attraction with the pen according to the present invention; in such a case the pen which is object of the present invention, for exerting a magnetic interaction with the cover, does not necessitate that this last shall be provided with a magnet.
In contrast, in case the magnetic constraint means present a ferromagnetic material not being provided with an own magnetization, it will be necessary that the retention elements of the cover of the external electronic device shall be provided with an own magnetization.
Preferably, the ferromagnetic material with which the magnetic constraint means are realized, shall have a magnetic susceptibility coefficient xm higher or equal to 5. The fact of having magnetic constraint means comprising a plastic - ferromagnetic composite material, is of a significant advantage in case said means shall be integral part of the body barrel 10. In such a way, advantageously, it can be realized a pen with a plastic body without form and design limitations, with a cap that encloses inside it the function of magnetic interaction without needing the installation of further elements on the pen; even if with respect to the traditional and simpler plastic, such a composite material can cost more, therefore the first, third and fifth embodiment necessitate of a working step less with respect to the second, fourth and sixth embodiment of the pen according to the present invention, concurring to a lower cost. In contrast, in the second, fourth and sixth embodiment, the pen according to the present invention can be realized for example with luxury or engraved plastics so as to be difficultly compatible with a ferromagnetic compound, without losing its function of magnetic interaction with the cover of the external electronic device.
In all the aforementioned cases, the amount of ferromagnetic material in the compound or, equivalently, the extension of the cylindrical elements 90, 91 respectively in the body or barrel and in the cap shall be such as to cause - when in contact with the cover of the external electronic device - a force of magnetic interaction equal or higher than the weight to which the pen itself is subject. Preferably, in any case, said force of magnetic interaction is significantly higher than the weight to which the pen is subject, to the end of ensuring an optimal adhesion. It is finally clear that to what is above described can be applied additions, variants and modifications obvious for a technician skilled in the art, without for that departing from the scope of protection provided by the annexed claims.

Claims

1. Pen, comprising:
- a body or barrel (1 0), containing inside an ink reservoir (20), and
- a writing element (40), mechanically jointed to said ink reservoir (20), positioned in correspondence of a point (30) of said pen;
said pen being characterized in that it comprises magnetic constraint means, said means being configured for detachably engage by means of magnetic interaction with retention elements of a cover of an external electronic device; said retention elements being them too suitable to exert a magnetic interaction with constraint means, and in that said magnetic constraint means are integrated in said body or barrel (10) that is realized in a composite material comprising said magnetic constraint means.
2. Pen according to claim 1 , wherein said magnetic constraint means comprise a composite plastic material comprising at least in part a ferromagnetic material.
3. Pen according to claim 1 or claim 2, wherein said ferromagnetic material is mixed into said composite plastic material.
4. Pen according to claim 1 , wherein said magnetic constraint means comprise at least in part a composite plastic material of a polyamidic type.
5. Pen according to claim 2, wherein said ferromagnetic material is selected among at least one of the following materials: iron, steel, cadmium, nickel, cobalt.
6. Pen according to claim 2, wherein said ferromagnetic material comprises magnetite.
7. Pen according to any of claims 2, 4, 5, wherein said ferromagnetic material comprises a magnetic susceptibility coefficient xm equal or higher than 5.
8. Pen according a any of the preceding claims, wherein said magnetic constraint means are integrally contained into said body or
barrel (10).
9. Pen according to any of the preceding claims, wherein said body or barrel (10) comprises constraint means therein contained.
10. Pen according to claim 1 , wherein said body or barrel (10) comprises a surface which is oriented for a direction of maximum extension along a longitudinal axis (X) defining a length of said body or barrel, and wherein said body or barrel (10) comprises therein said magnetic constraint means in form of at least one element (90) extending inside said body or barrel (10) for a portion comprised between 5% and 70% of its length.
11. Pen according a any of the preceding claims 1 -8, further comprising an hollow cap (70) susceptible of housing at least said writing element (40) and further comprising said constraint means.
12. Pen according to claim 10, wherein said constraint means are integrally contained into a body (71 ) of said cap.
13. Pen according to claim 10, wherein said cap extends for a direction of maximum length along a longitudinal axis (X) defining a length of said cap and wherein said cap (70) comprises therein said magnetic constraint means in form of at least one element that (90) extends for at least part of its length.
14. Pen according a any of the preceding claims, comprises comprising an interaction element susceptible of interacting with digitizers of said external electronic device.
15. Pen according to claim 13, wherein said interaction element is positioned in correspondence of an extremity of a cap (70) of said pen.
16. Pen according a any of the preceding claims, wherein said constraint means are configured for developing a magnetic attraction force with said retention elements of said case that is higher or equal to the weight to which said pen is subject.
EP14800149.8A 2013-11-29 2014-11-05 Magnetic pen Withdrawn EP3074240A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000660A ITRM20130660A1 (en) 2013-11-29 2013-11-29 MAGNETIC PEN.
PCT/IB2014/065823 WO2015079347A1 (en) 2013-11-29 2014-11-05 Magnetic pen

Publications (1)

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EP3074240A1 true EP3074240A1 (en) 2016-10-05

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EP (1) EP3074240A1 (en)
IT (1) ITRM20130660A1 (en)
WO (1) WO2015079347A1 (en)

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WO2018174885A1 (en) * 2017-03-23 2018-09-27 Hewlett-Packard Development Company, L.P. Digital pens for computing devices
DE102017009364B4 (en) 2017-10-04 2024-01-11 Staedtler Mars Gmbh & Co. Kg Writing, drawing, marking device and/or cosmetic device

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