EP2828098B1 - Instrument d'ecriture ayant un manchon de protection deplacable - Google Patents

Instrument d'ecriture ayant un manchon de protection deplacable Download PDF

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Publication number
EP2828098B1
EP2828098B1 EP13715286.4A EP13715286A EP2828098B1 EP 2828098 B1 EP2828098 B1 EP 2828098B1 EP 13715286 A EP13715286 A EP 13715286A EP 2828098 B1 EP2828098 B1 EP 2828098B1
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EP
European Patent Office
Prior art keywords
sleeve
barrel
writing instrument
instrument according
face
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.)
Active
Application number
EP13715286.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2828098A1 (fr
Inventor
Arnaud Bez
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.)
BIC SA
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BIC 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
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Publication of EP2828098A1 publication Critical patent/EP2828098A1/fr
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Publication of EP2828098B1 publication Critical patent/EP2828098B1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/026—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions with a sleeve sliding on the forward end of the lead
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/06—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by turning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/005—Pen barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/005—Pen barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/12—Ball-point pens with retractable ball points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/003—Pen barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/16—Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs

Definitions

  • the invention relates to a writing instrument comprising a barrel extending along a longitudinal axis and a tip mounted at the front of the barrel, further comprising a sleeve for protecting the tip, said sleeve being mounted coaxially on the barrel and movable in translation relative to the barrel between a protective position in which it covers the tip and a retracted position in which it discovers the tip to allow writing, said sleeve having an inner wall which comprises a cooperating helical cam with a guide member formed on the barrel so that the sleeve is movable by translation combined with a rotation, said sleeve further comprising on its inner wall a detent member adapted to cooperate with a retention member formed on the barrel to prevent the sleeve from being separated from the barrel.
  • the barrel comprises a guide member formed by a helical thread, and the helical guide cam on the inner wall of the sleeve is formed by a helical groove in which the thread engages.
  • the drum retention member is formed by an annular frustoconical collar, and the sleeve engaging member is formed by an annular rim projecting inwardly at the rear end of the inner wall of the sleeve. .
  • the annular collar has an outside diameter slightly greater than the inside diameter of the annular flange, and the sleeve has a resilience adapted so that the inside diameter of the annular flange increases so as to pass the annular collar during the force-fitting of the sleeve on the annular flange. barrel.
  • the helical groove of the sleeve is provided to disengage with respect to the helical thread of the barrel, so that an inner shoulder of the sleeve bears against the thread and prevents the sleeve from retracting. if you press it.
  • the sleeve can then rotate freely without causing a translation movement, but it is necessarily expected a position in which the helical thread engages again in the helical groove to allow the screwing of the sleeve on the barrel.
  • This known writing instrument has the particular advantage of a reliable guide of the displacement of the sleeve on the barrel, thanks to the conventional solution of a helical thread engaged in a helical groove.
  • These elements being designed non-flexible and rigid enough not to deform, there is virtually no risk that the thread out of the throat, especially in the case where the user continues to exert on the sleeve a effort of screwing in the retracted position of the sleeve that is to say when the tip is uncovered.
  • other known writing instruments with movable protective sleeves use at least one guide element consisting of a radially flexible element engaged in a helical slot closed at the ends.
  • the object of the invention is in particular to solve the above drawbacks by proposing a firm and reliable locking of the sleeve in the protection position of the tip, while allowing a guiding of the displacement of the sleeve on the barrel without risk of disengagement of the the guide member with respect to the helical cam and also allowing not to require a slot through the wall of the sleeve.
  • the subject of the invention is a writing instrument as defined above, characterized in that it comprises a locking element able to cooperate with one of said retention element and said element of latching so as to lock said protective position.
  • the protective position is locked in such a way that the sleeve is immobilized in translation and rotation relative to the barrel without the risk of accidentally leaving its position.
  • the locking element cooperates with one of the retention element and the detent element which ensure between them the snapping of the sleeve on the barrel during assembly, this implies that the element retaining element or the detent element provides both a latching function of the sleeve and a locking function of the protective position. It is therefore not necessary to provide a separate specific element of the retention element and the detent element to cooperate with the locking element, which simplifies the molding of the sleeve or barrel.
  • the writing instrument represented on the Fig. 1 and on the Fig. 2 has a barrel 1 which extends along a longitudinal axis A.
  • the barrel 1 comprises a front portion 1A generally forming a cylindrical tube, and a cylindrical main portion 1B cylindrical larger outer diameter than the front portion 1A, which meet in forming an annular shoulder 1E.
  • a protective sleeve 2, visible in detail on the Figures 7 to 10 is mounted movably in helical movement on the front portion 1A of the barrel, coaxially with the barrel 1.
  • the sleeve 2 is movable between a protective position ( FIG.1 ) in which it covers a writing tip 7 to protect it and a retracted position ( FIG.2 ) in which he discovers tip 7 to allow writing.
  • the sleeve 2 In its retracted position, the sleeve 2 abuts against the annular shoulder 1E of the barrel.
  • the sleeve 2 has a rear end edge 2E forming a flat surface which comes into full contact with the annular shoulder 1E, which also forms a flat surface.
  • the sleeve 2 has an outer diameter equal to that of the main portion 1B of the barrel. In this way, in the retracted position of the sleeve, the sleeve and the barrel form a surface continuity without gaps at their junction, which is aesthetically advantageous and also allows the user to comfortably hold the instrument during writing .
  • the front portion 1A of the barrel 1 has an outside diameter D1A smaller than the outside diameter of the main portion 1B of the barrel ( Fig. 5 ), and comprises on its outer surface a guide member 10 and a retention member 11.
  • the guide member 10 is formed by a helical rib extending circumferentially with respect to the longitudinal axis A of the barrel on a ⁇ angle for example of about 90 ° between a front end 10F and a rear end 10R of the rib ( Fig. 6 ).
  • the angle ⁇ is less than 170 °, which facilitates the molding of the outer surface of the barrel 1 by a mold comprising two half-shells, the helical rib 10 then being formed by a single half-shell. Even more advantageously, the angle ⁇ is between 60 ° and 120 °.
  • the helical rib 10 forms with the longitudinal axis A of the barrel a pitch angle ⁇ of between 20 ° and 50 ° ( Fig. 3 ), so that a rotation of the sleeve 2 for example of about 90 ° is sufficient to move the sleeve over its entire translation travel between the protective position and the retracted position. This arrangement facilitates handling by the user, since the passage of the sleeve from one position to another can be done in one quick movement.
  • the retention element 11 extends in a circumferential direction of the barrel 1 forming a retention tooth which has an apex 11C and a first face 11A and a second face 11B disposed on either side of the apex ( Fig. 6 ).
  • the first face 11A forms an abrupt side of the tooth, and preferably extends substantially perpendicular locally to an outer cylindrical surface of the front portion 1A of the barrel on which the tooth protrudes.
  • direction perpendicular locally to a cylindrical surface is meant a direction perpendicular to a plane which is tangent to the cylindrical surface at the level of the locally considered zone.
  • this first face 11A extends along a radial plane of said outer cylindrical surface, that is to say a plane which contains the longitudinal axis A of the barrel, which is the case in the embodiment mode shown.
  • the plane of extension of the first face 11A is not necessarily radial, and in a not shown embodiment can be provided a certain inclination of the plane relative to the longitudinal axis A of the drum while remaining substantially perpendicular locally to a said outer cylindrical surface of the barrel.
  • this retention tooth 11 is located relative to the longitudinal axis A in an angular position substantially opposite to an average angular position of the helical rib 10, as visible on the Fig. 6 , and has an axial position offset towards the rear of the barrel relative to the rib 10, as visible on the Fig. 5 on which the axial offset is represented by the distance L1.
  • the retaining tooth 11 is at a distance L2 from the annular shoulder 1E of the shank, which distance L2 is advantageously equal to the translation travel of the sleeve 2 between the protective position and the retracted position.
  • the helical rib 10 has an outer radius R10.
  • the retention tooth 11 has the same height as the rib 10, that is to say that its vertex lies on a circle of radius equal to R10 ( Fig. 6 ).
  • the protective sleeve 2 has an inner wall 2I which comprises a helicoidal cam 20.
  • This helicoidal cam 20 comprises in particular a helical groove 20A formed in a first wall portion 8 of the inner wall 2I of the sleeve ( Fig. 9, FIG. 10 ).
  • the helical rib 10 of the barrel is adapted to engage the helical groove 20A, so that the translation of the sleeve is combined with a rotation of the latter.
  • the sleeve 2 further comprises on its inner wall 21 a snap-in element 21 adapted to pass over an element of retaining the barrel so as to snap the sleeve onto the barrel during assembly to prevent the sleeve from being separated from the barrel.
  • the passage of the two elements one over the other is allowed thanks to the ability of the sleeve to undergo a certain elastic deformation in the radial direction.
  • the plastic material used for the sleeve, as well as the structure and the thickness of the walls of the sleeve, are parameters to be taken into account in order to obtain an adequate elastic deformation of the sleeve with a view to the desired snapping.
  • the detent element 21 extends in a circumferential direction of the sleeve 2 by forming a detent tooth.
  • This arrangement allows that when the ratchet tooth 21 passes over the retention tooth 11 of the drum during assembly, the elastic deformation undergone by the sleeve in the radial direction is located mainly at the ratchet tooth, which facilitates mounting the sleeve by snapping on the barrel.
  • the ratchet tooth 21 has an apex 21C and a first face 21A and a second face 21B disposed on either side of the apex.
  • the first face 21A forms an abrupt side of the tooth, and preferably extends substantially perpendicular locally to a cylindrical surface of the inner wall 2I of the sleeve.
  • This first face 21A forms a stop of the ratchet tooth 21 which in the protective position of the sleeve cooperates with the stop formed by the first face 11A of the retention element 11.
  • this first face 21A extends in a radial plane of said cylindrical surface of the inner wall 2I, i.e. a plane which contains the longitudinal axis of the sleeve, which is the case in the embodiment shown.
  • the plane of extension of the first face 21A is not necessarily radial, and in a not shown embodiment can be provided a certain inclination of the plane relative to the longitudinal axis.
  • the second face 11B of the retention tooth 11 and the second face 21B of the detent tooth do not form steep sides of the teeth, but inclined sides for example at an angle of less than 45 ° locally relative to a cylindrical surface of the front portion 1A of the barrel or the inner wall of the sleeve.
  • the second face 21B of the ratchet tooth 21 is designed to exert during assembly a pressure on the second face 11B of the retention tooth 11 in order to deform radially the sleeve and / or the barrel, until that the ratchet tooth 21 passes the retention tooth 11 to engage the sleeve 2 on the barrel 1 in the protective position of the sleeve, as explained later with reference to the Fig. 12 and the Fig. 13 .
  • the first wall portion 8 of the inner wall 2I of the sleeve, in which the groove 20A is formed, generally has a first diameter D1 that is almost equal to the outside diameter D1A of the front portion 1A of the barrel 1, so that the sleeve 2 can slide coaxially on the front portion 1A of the barrel. Given the manufacturing tolerances, in practice D1 will be slightly greater than D1A.
  • the inner wall 2I of the sleeve comprises a second wall portion 9 generally having a second diameter D2 greater than the first diameter D1 ( Fig. 9 ).
  • This second wall portion 9 allows in particular to come to position the helical rib 10 of the barrel in the sleeve 2 during assembly, since the second diameter D2 is provided slightly greater than twice the outer radius R10 of the helical rib 10.
  • the least radial thickness of this wall portion 9 allows to provide areas of the sleeve for which an elastic deformation in the radial direction is facilitated.
  • a first locking element 22 is formed on the second wall portion 9 of the sleeve and is located in the immediate vicinity of the detent element 21, being provided to cooperate with the retention element 11 so as to lock the position protection.
  • the position lock can be provided more or less firm, so as to avoid accidental retraction of the sleeve 2 without making it difficult to manipulation of the sleeve by the user to discover the tip 7. It will be understood that the shape and height of the first locking member 22 affect the firmness of the locking of the protective position.
  • the first locking element 22 is for example formed by a first boss which has a cylindrical shape truncated in its axial direction, for example a half-cylinder shape.
  • the axial direction of the boss is provided parallel to the longitudinal axis A of the sleeve.
  • the rounded shape of the boss is advantageous for the boss can pass on the retention element 11 of the barrel in both directions of rotation of the sleeve 2 and in excessive strength.
  • the first boss 22 is arranged to come into contact with the second face 11B of the retention tooth 11 in the protective position of the sleeve, as visible in particular on the Fig. 13 .
  • the locking of the protective position of the sleeve can be provided relatively firmly, that is to say that the displacement by screwing of the sleeve from its protective position initially implies a screwing force sufficient to elastically deform the sleeve and / or barrel so that the first boss 22 passes the retention element 11.
  • a second locking element 23 is formed by a second boss disposed on the second wall portion 9 of the sleeve, so as to lock the retracted position of the sleeve.
  • the second boss 23 has for example a cylindrical shape truncated similarly to that of the first boss 22, to cooperate similarly with the retention element 11. This cylindrical shape also extends advantageously in an axial direction parallel to the longitudinal axis of the sleeve. These arrangements facilitate the manufacture by molding of the sleeve. It will be understood in particular that in particular the two bosses 22 and 23 and the ratchet tooth 21 can be formed from the same central pin that is removed along the longitudinal axis of the sleeve during demolding.
  • the second boss 23 is located towards the front of the sleeve by relative to the first boss 22, on the helical path that follows the retention element 11 relative to the wall portion 9 of the sleeve.
  • first boss 22 could be extended in its axial direction somewhat beyond the rear end edge 2E of the sleeve, so as to form a projection adapted to cooperate with a corresponding detent notch formed on the barrel at the annular shoulder 1E of the barrel.
  • the first wall portion 8 and the second wall portion 9 of the sleeve meet to form a straight shoulder zone 24 which extends parallel to the longitudinal axis A of the sleeve, as well as a helical shoulder zone 20B situated in the extension of the helical groove 20A and which forms a ramp portion of the helical cam 20.
  • the helical shoulder zone 20B is arranged to serve for the positioning of the helical rib 10 which comes into contact with said zone 20B in a mounting position of the sleeve ( Fig. 11 ), so that the front end 10F of the helical rib faces an inlet 20AB of the helical groove 20A ( Fig. 10 ).
  • the rectilinear shoulder zone 24 also serves to guide the front end 10F of the helical rib to the inlet 20AB of the groove.
  • the second face 21B of the ratchet tooth 21 joins at its base an end portion 9E of the second wall portion 9 of the sleeve ( Fig. 7 ).
  • This arrangement improves the elastic deformation of the sleeve 2 at the ratchet tooth 21, thereby facilitating the snap of the sleeve on the barrel during assembly.
  • the retention element 11 of the barrel is arranged to be positioned substantially in the same angular position as the end portion 9E of the second wall portion 9 above.
  • the helical rib 10 is then positioned in contact with the ramp portion 20B of the helical cam 20 and is ready to be engaged in the helical groove 20A.
  • a pressure exerted on the front of the sleeve 2 causes the engagement of the front 10F of the helical rib 10 in the inlet 20AB of the helical groove 20A, which causes in a first time the screwing of the sleeve on the drum almost without resistance until the detent element 21 comes into contact with the retention element 11.
  • a greater force is then required to snap the sleeve on the barrel, that is to say say that the latching element 21 passes the retention element 11 to bring the sleeve into its protective position as shown on the Fig. 12 and on the Fig. 13 .
  • the first faces of the two teeth each extend in a radial plane of the sleeve, which plane comprises the longitudinal axis A of the barrel. A mutual pressure between the first faces of the teeth therefore produces stresses exerted solely in the circumferential direction of the sleeve, which does not cause radial deformation of the sleeve.
  • the immediate vicinity of the locking element 22 with respect to the locking element 21 allows the retention tooth 11 to be in contact with each of the elements 21 and 22 mentioned above in the protective position of the sleeve, in order to avoid a game of movement to thereby stabilize the protective position.
  • the retention tooth 11 has a rear face provided to form a surface continuity with the rear end plane edge 2E of the sleeve 2 in the protective position of the sleeve, which is particularly advantageous in terms of aesthetics.
  • the helical rib 10 is partially engaged in the helical groove 20A. If the user rotates the sleeve 2, for example in the conventional direction of a screwing for the illustrated embodiment and with sufficient effort for the first locking member 22 to pass the retention tooth 11, the sleeve advances towards the until the second locking element 23 comes into contact with the inclined side of the retention tooth 11, that is to say the second face of the tooth, which makes the user feel a certain resistance screwing. The rear end edge 2E of the sleeve is then very close to the annular shoulder 1E of the barrel. The continuation of the screwing with sufficient effort allows the second locking member 23 to pass the retention tooth 11, which can be provided to coincide with the coming into contact of the rear end edge 2E of the sleeve against the annular shoulder 1E of the drum.
  • the sleeve is then in its retracted position.
  • the second locking element 23 remains in contact with the retention tooth 11, in order to reinforce the stability of the retracted position.
  • the locking firmness achieved in this position is provided so that the position can not be unlocked when the user writes by exerting normal pressure on the writing tip 7. Indeed, if the user writes while holding the instrument only by the sleeve 2, it may occur an unlocking of the retracted position of the sleeve if excessive pressure outside the scope of normal use is exerted on the tip. Such an unlocking causes a displacement relative of the tip to enter the sleeve.
  • the writing tip 7 is fixedly provided by being mounted at the front of an ink reservoir tube 3 held fixed in the barrel 1
  • the reservoir tube 3 is mounted in abutment against a conical end portion of the front portion 1A of the barrel.
  • a rear screw cap 5 is mounted at the rear of the barrel, and a spacer support 4 is mounted in the barrel between the rear cap 5 and the rear of the reservoir tube 3 to fix the tube. The replacement of the cartridge formed by the reservoir tube 3 with the tip 7 is thus possible by removing the rear cap 5 and taking out the spacer support 4.
  • the locking element is formed on the shaft and not on the sleeve. As shown on the Fig. 17 and the Fig. 18 , the locking element may be formed by a boss 12 located in the immediate vicinity of a tooth 11 constituting the retention element.
  • the barrel 1 'shown is distinguished from the barrel 1 described above with reference to Figures 3 to 6 only by adding the boss 12.
  • the locking boss 12 has a generally rounded shape, for example half-cylinder. It is located opposite the steep side of the retention tooth 11, in the circumferential direction, and its height is preferably lower than the height of the tooth 11. In this way, the boss 12 is able to pass over the element of snap 21 of the sleeve 2 'shown in the Fig. 16 in both directions of rotation of the sleeve, unlike the retention tooth 11 which in the same way as in the first embodiment can not iron on the detent element 21 once the assembly is carried out.
  • the locking boss 12 cooperates with the ratchet tooth 21 so as to lock the protective position as represented on the Fig. 19 .
  • the detent tooth 21 is disposed between the retention tooth 11 and the locking boss 12 and preferably remains in contact with these projecting elements 11 and 12 in order to stabilize the position.
  • the user To unlock this protection position, the user must initiate a rotation of the sleeve with sufficient effort that the locking boss 12 passes over the ratchet tooth 21.
  • the locking boss 12 is functionally equivalent to the first locking boss 22 in the first embodiment, and thus provides an identical locking function in the same protective position of the sleeve.
  • a first locking member 22 is not necessarily useful in the protective sleeve 2 'of the second embodiment.
  • the sleeve 2 ' can remain identical to the sleeve 2 described above, that is to say it can retain the first locking element 22, without incompatibility with the second embodiment described above.
  • This variant of the above-mentioned second embodiment of the invention may be useful if it is desired to further strengthen the locking of the sleeve in the protective position. Indeed, from the representation of the Fig. 19 , it is understood that the addition of a locking boss 22 as visible on the Fig.
  • the two locking bosses 12 and 22 may advantageously be designed so that they do not or hardly come into contact with each other when moving the sleeve between its protective position and its retracted position.
  • the height of each locking boss 12 or 22 in the radial direction may be provided equal to or less than half the height of the tooth 11 in the radial direction. In this way, a boss 12 or 22 does not pass on the other boss 12 or 22 during a rotation of the sleeve, or only scratches the other boss, which does not generate an additional point of resistance to pass that would correspond to a support of the boss 12 on the boss 22.
  • the user turning the sleeve to lock it to its protective position thus perceives a single point of resistance to pass at the end of rotation to complete the lock of the sleeve.
  • a stationary writing tip can be provided which is able to move back a little inwards towards the inside. during writing, thanks to a damping device allowing for example a small displacement of the cartridge in the barrel under the effect of the pressure exerted on the tip.
  • the damping device may for example be made by a spring mounted between a movable spacer support and the rear cap 5.
  • a retention member 11 and a latching member 21 formed by teeth which are intrinsically not radially flexible that is to say that the snapping of these teeth is made possible thanks to the local elastic deformation, in the direction radial, wall of the sleeve and / or barrel at a tooth.
  • at least one of these teeth is intrinsically elastically deformable radially in order to less stress in radial deformation of the sleeve and / or the barrel during assembly.
  • a recess in the form of a notch in the circumferential direction at the base of the steep side of a tooth may be provided for molding by molding so that the tooth forms a flexible tab having a certain elasticity in the direction radial.
  • Slots, for example longitudinal slots in the wall of the front portion of the barrel on either side of the retention element 11 may also be provided, so as to locally obtain more flexibility of the wall at this element.
  • the invention also relates to a kit for producing the writing instrument according to the invention, said kit comprising the barrel (1) and the protective sleeve (2) to be mounted on the barrel, wherein the inner wall Sleeve (2I) comprises a first wall portion (8) in which at least a portion (20A) of the helical cam (20) is formed and generally having a first diameter (D1), and comprises a second wall portion ( 9) generally having a second diameter (D2) greater than the first diameter (D1), the guide element (10) of the shaft being disposed facing said second wall portion (9) in a mounting position of the sleeve in which the sleeve is engaged on the barrel and ready to be snapped onto it.
  • the inner wall Sleeve (2I) comprises a first wall portion (8) in which at least a portion (20A) of the helical cam (20) is formed and generally having a first diameter (D1), and comprises a second wall portion ( 9) generally having a second diameter (D2) greater than the first diameter (D1), the guide element (10) of the shaft

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP13715286.4A 2012-03-20 2013-03-08 Instrument d'ecriture ayant un manchon de protection deplacable Active EP2828098B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1252481A FR2988329B1 (fr) 2012-03-20 2012-03-20 Instrument d'ecriture ayant un manchon de protection deplacable
PCT/FR2013/050493 WO2013140062A1 (fr) 2012-03-20 2013-03-08 Instrument d'ecriture ayant un manchon de protection deplacable

Publications (2)

Publication Number Publication Date
EP2828098A1 EP2828098A1 (fr) 2015-01-28
EP2828098B1 true EP2828098B1 (fr) 2018-08-22

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Application Number Title Priority Date Filing Date
EP13715286.4A Active EP2828098B1 (fr) 2012-03-20 2013-03-08 Instrument d'ecriture ayant un manchon de protection deplacable

Country Status (7)

Country Link
US (1) US9539848B2 (es)
EP (1) EP2828098B1 (es)
JP (1) JP6058117B2 (es)
CN (1) CN104284782B (es)
FR (1) FR2988329B1 (es)
MX (1) MX357037B (es)
WO (1) WO2013140062A1 (es)

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CN107538969B (zh) * 2015-04-07 2019-03-29 余成鹏 一种笔
CN104875526A (zh) * 2015-05-10 2015-09-02 深圳市中幼国际教育科技有限公司 一种幼儿安全笔及其使用方法
FR3042887B1 (fr) * 2015-10-27 2017-11-17 SOCIéTé BIC Instrument d'ecriture a pointe retractable comprenant un coussinet pour ecran capacitif
DE102016002477A1 (de) 2016-03-03 2017-09-07 C. Josef Lamy Gmbh Schreibgerät
USD810199S1 (en) * 2016-03-03 2018-02-13 Amgtm Llc Writing and art instrument
CN111201145B (zh) * 2017-09-19 2022-02-22 桑福德有限合伙人公司 可伸缩鼻锥体书写工具
WO2019067612A1 (en) * 2017-09-28 2019-04-04 Sanford, L.P. RETRACTABLE HEAD WRITING INSTRUMENT
JP7146393B2 (ja) * 2017-12-28 2022-10-04 株式会社パイロットコーポレーション 筆記具
USD879201S1 (en) * 2018-08-24 2020-03-24 Baron Fig LLC Pen
CN109605982B (zh) * 2018-12-26 2020-08-11 温州市简系文具有限公司 一种新型手势按压笔
CN109605985B (zh) * 2018-12-26 2020-08-11 温州市简系文具有限公司 一种笔
CN109649044B (zh) * 2018-12-27 2024-07-19 真彩文具股份有限公司 便于脱卸笔帽的笔结构
CN109664644B (zh) * 2018-12-31 2020-05-22 温州市简系文具有限公司 一种循环复位拔笔
USD893625S1 (en) * 2019-02-04 2020-08-18 Howard H. Smith Ink refill cartridge for writing instrument
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Publication number Publication date
CN104284782A (zh) 2015-01-14
JP2015514025A (ja) 2015-05-18
MX357037B (es) 2018-06-25
MX2014011152A (es) 2015-06-10
CN104284782B (zh) 2016-02-03
US9539848B2 (en) 2017-01-10
FR2988329A1 (fr) 2013-09-27
US20150043957A1 (en) 2015-02-12
WO2013140062A1 (fr) 2013-09-26
EP2828098A1 (fr) 2015-01-28
JP6058117B2 (ja) 2017-01-11
FR2988329B1 (fr) 2014-11-21

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