EP2825394A1 - Porte-mine avec organe poussoir coulissant - Google Patents
Porte-mine avec organe poussoir coulissantInfo
- Publication number
- EP2825394A1 EP2825394A1 EP13712873.2A EP13712873A EP2825394A1 EP 2825394 A1 EP2825394 A1 EP 2825394A1 EP 13712873 A EP13712873 A EP 13712873A EP 2825394 A1 EP2825394 A1 EP 2825394A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pusher device
- opening
- tubular body
- tubular
- mechanical pencil
- 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.)
- Granted
Links
Classifications
-
- 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
- B43K24/04—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by means sliding in longitudinally-slotted casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/006—Pencil-barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/06—Writing-core feeding mechanisms with the writing-cores fed by means sliding in longitudinally-slotted casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/16—Writing-core feeding mechanisms with stepwise feed of writing-cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/16—Writing-core feeding mechanisms with stepwise feed of writing-cores
- B43K21/18—Writing-core feeding mechanisms with stepwise feed of writing-cores having ratchet means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/22—Writing-cores gripping means, e.g. chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
- B43K25/02—Clips
-
- 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
- B43K29/02—Combinations of writing implements with other articles with rubbers
Definitions
- the present invention relates to a mechanical pencil and more particularly to a mechanical pencil comprising a tubular body extending along a longitudinal axis between a rear end which has a first opening and a front end which has a second opening through which a mine is likely to come out, and a mine advance mechanism arranged in the tubular body, the advance mechanism comprising:
- a pusher device adapted to slide parallel to the longitudinal axis and comprising an outer portion which extends externally relative to the tubular body and an inner portion inserted into the tubular body through the first opening;
- a clamp situated on the side of the front end of the tubular body and capable of being clamped on the mine;
- a reservoir that extends along the longitudinal axis to accommodate at least one mine, the reservoir comprising a rear end surrounded by the internal portion of the pusher device and a front end adapted to move the clamp when the pusher device slides towards the front end.
- a mechanical pencil of the above kind makes it possible to compensate the wear at the front of the mine by sliding it relative to the tubular body in response to axial pressure on the pusher device, the collet then blocking the new position taken by the mine in a manner known per se.
- the user simply has to slide the mine through a central opening, generally narrower than the reservoir, conventionally formed in the pusher device.
- a removable eraser is generally mounted on the pusher device and covers this central opening in the operational configuration of the mechanical pencil.
- document US Pat. No. 5,354,141 or its equivalent WO 92/15462 A1 discloses a mechanical pencil which comprises a pusher device formed of the eraser holder and the eraser, possibly with a rubber cap, and slidably mounted in a cylindrical barrel. The actuation of the advance mechanism and the scrubbing can be carried out easily with this kind of device button.
- the inner portion of the pusher device can cooperate with a reservoir whose diameter is reduced relative to the internal diameter of the tubular body.
- the thrust allows to abut axially on an annular edge at the rear end of the tank, to drive the tank forward. Having a significantly narrower tank than the tubular body is advantageous for obtaining a quicker and easier centering of a new mine in the clamping zone of the feed mechanism.
- the inner portion of the pusher device comprises an elastically deformable thinned portion provided with one or more projecting lugs which cooperate with an internal shoulder or a window of the barrel to form a stop retaining the pusher device.
- a disadvantage related to the flexibility of the internal portion of the pusher device is that it is easier to break the deformable part of this inner portion, for example during assembly or when a significant effort is exerted on the pusher device (for example during an energetic exfoliation). There is then a risk that the pusher device detaches from the barrel and is lost.
- the present invention aims to provide a mechanical pencil which reduces the risk of breakage at the pusher device and which preferably provides user comfort for manipulation.
- the mechanical pencil according to the invention has at its rear end an annular retention wall of the pusher device, this annular wall having an inner face with two longitudinal recesses, preferably two slots, each having a trailing edge delimited by a lug which protrudes radially inwards relative to the remainder of the internal face of said annular portion, the inner portion of the pusher device comprising a tubular wall having:
- the longitudinal recesses comprise two diametrically opposed slots, at least one of the two slots opening radially inwardly through a rib whose rear end is defined by one of the pins, the rib s extending substantially parallel to the longitudinal axis from the lug to a forward end.
- the rear end of the reservoir is in contact with longitudinal ribs formed on the inner face of the tubular wall.
- ribs facilitates the insertion of this rear end into the inner portion and allows the reservoir to reach more easily the bottom of the insertion cavity.
- the pusher device comprises a rubber support made in one piece to house an eraser, the eraser support comprising:
- a mounting member comprising a bottom and a wall extending substantially annularly about the longitudinal axis from the bottom to a rear opening so as to define a cavity for accommodating the eraser, the mounting member extending the inner portion and forming part of the outer portion;
- the tubular wall of the inner portion has an axial opening opposite the bottom of the mounting member and delimits a cavity for receiving the rear end of the reservoir between said bottom and the axial opening, the widening cavity near this axial opening;
- the tubular wall of the inner portion has an outer shoulder made at a distance from the projection (this arrangement of the outer shoulder at the inner portion avoids accidentally pinching a finger of the user and can thus block the sliding forward of the pusher device after a stroke which is sufficient to allow the advance of the mine);
- the projection is an annular rib which extends continuously over the circumference of the tubular wall of the inner portion (with this arrangement, the radial compression of the internal portion is minimized and the retention of the pusher device is particularly effective; in addition to the clearance between the rear end of the body and the pusher device can be extremely reduced with this configuration, which limits the risk of blockage by an external particle (grain of sand for example);
- the tubular body comprises a barrel (tubular) extending longitudinally about the longitudinal axis and having a length much greater than the length of the pusher device, and a removable clip support arranged in the extension of the barrel and comprising the annular retention wall including the lugs, the pusher device being slidably mounted in the clip holder (thus the clip holder which forms the rear end of the tubular body can be removed to allow the reloading if necessary). tank which remains secured to the barrel, and this without interfering with the mounting of the push device or with the mounting of an eraser);
- the clip support comprises a rear section arranged in the axial extension of the barrel and adapted to receive a clip, and a front section of generally tubular shape extending around the longitudinal axis and which is inserted coaxially in the barrel, the front section comprising a tubular attachment portion to the barrel provided with an external thread and extending around and away from the reservoir;
- the front section further comprises an end portion of generally annular shape arranged in the extension of the tubular fixing portion, the end portion having an annular edge in contact with a cover tube arranged around the reservoir and an axial orifice having a diameter. internal at least 30% less than an internal diameter of the first opening;
- the clip holder comprises an outer shoulder in contact with a rear edge of the barrel and an inner shoulder which is axially opposite an outer shoulder formed on the tubular wall of the pusher device; the internal shoulder may form a stop or complete a stop system sliding forward of the pusher device (thanks to the internal arrangement of the outer shoulder of the pusher device, it eliminates the risk of blocking the sliding by an outer member being fixed on the rear end of the body);
- the slots or longitudinal recesses of the annular retention wall form windows of the clip support, the outer shoulder of the clip support being located axially between the windows and the internal shoulder and closer to the windows than of said internal shoulder;
- the slots or recesses extend longitudinally over a distance which is greater than the distance between the inner shoulder of the clip holder and the outer shoulder formed on the tubular wall of the pusher device.
- FIG. 1 and FIG. 2 are views in longitudinal section, respectively the rear portion and the front portion of a mechanical pencil according to the invention, with the pusher device in a rest position;
- FIG. 3 is a side illustrating two elements of the mechanical pencil of Figure 1;
- FIG. 4 is an exploded showing in longitudinal section of the elements already shown in Figure 1;
- FIG. 5A is a longitudinal sectional view of a rubber support forming part of a pusher device used in the mechanical pencil of FIG. 1;
- Figure 5B is a top view of the eraser holder of Figure 5A;
- FIG. 7A is a longitudinal sectional view of an intermediate element forming a clip holder between the barrel of the mechanical pencil and the rubber holder;
- Figure 7B is a cross-sectional view of the intermediate member of Figure 7B.
- the mechanical pencil 1 comprises a tubular body 2 which extends along a longitudinal axis X between a rear end 2a and a front end 2b.
- the front end 2b of the tubular body 2 is defined by a point 3.
- a bore 3a and an opening 3b are provided in this point 3 to allow the sliding of a probe-tip 4.
- the tip guide-mine 4 accompanies the exit of the mine 5 to avoid a break of the mine 5.
- a pusher device 6 is mounted through a first opening 7 formed at the rear end 2a of the tubular body 2.
- the pusher device 6 has an actuating surface 6a oriented axially outwardly.
- This pusher device 6 is mounted so as to slide parallel to the longitudinal axis X between a depressed position for an advance actuation of the mine 5 and a recessed position taken by default under the effect of a spring 8 or similar elastic spring means.
- Figures 1 and 2 show the mechanical pencil 1 in a configuration of use, with the pusher device 6 in its recessed position.
- the pusher device 6 comprises the rubber E, a rubber support H made in one piece to house the rubber E and a cap 9 to cover the rubber E.
- rubber support H comprises an inner portion 11 which is inserted into the tubular body 2 through the first opening 7 and which is in contact with the tubular body 2 to guide the pusher device 6.
- the rubber support H also comprises a frame member 12 which extends the inner portion 1 1 and which has a wall extending substantially annular about the longitudinal axis X from a bottom 12a to a rear opening 12b so as to define a cavity 13 for housing the eraser E.
- This frame member 12 is part of the outer portion of the rubber support H.
- the advance mechanism of the mine 5 is here arranged in the tubular body 2 and comprises:
- a reservoir 16 for storing one or more mines which has a tubular shape and extends around the longitudinal axis X;
- a clamp 17 capable of being clamped on the mine 5 in a clamping position and situated on the side of the front end 2b of the tubular body 2, the clamp 17 comprising here a tubular portion and a head 17a having a configuration known in FIG. self;
- a clamping member 18 which has a clamping ring 18a for immobilizing the mine 5, the clamping member 18 surrounding here the clamp 17 in a manner known per se;
- the spring 8 which is in the compressed state (compression spring of the helical type) and extends between a rear end 8a bearing against the reservoir 16 and a front end 8b bearing against an internal shoulder of the tightening 18.
- the reservoir 16 thus extends between the pusher device 6 and the spring 8.
- This reservoir 16 is typically cylindrical and arranged coaxially in the tubular body 2.
- the rear end 16a of the reservoir 16 is surrounded by the inner portion 1 1 of the pusher device 6. It is understood that this inner portion 1 1 provides a support function of the reservoir 16 ( by blocking the possibility of relative axial movement between the pusher device 6 and the reservoir 16).
- Its front end 16b is fixed to the tubular portion of the clamp 17 and moves the clamp 17 in the clamping position when the pusher device 6 slides towards the front end.
- the internal abutment B formed at the front end 2b of the tubular body 2 selectively stops the advance of the clamping member, so that the clamp 17 can continue to advance by reducing the clamping on the lead 5, so known in itself.
- the spring 8 exerts an elastic restoring force in response to the pressure exerted on the pusher device 6 and the reservoir 16, the gripper 17 returns to its initial position visible in FIG. 2 and the mine 5 is again tightened.
- an additional spring 19 for the damping of the writing pressure can also be provided between the clamping member 18 and a cover tube 21 arranged around the tank 16 and which is fixed in translation. in the barrel 20 of the tubular body 2.
- the outer portion of the gum carrier H is particularly compact and devoid of external shoulder or groove.
- the pusher device 6 In the retracted position taken by the pusher device 6, about 60-65% of the length of the gum carrier H is located inside the tubular body 2, which makes the scrubbing operation easier when the pencil is grasped at the rear end 2a.
- the internal portion 1 1 of the pusher device 6, formed by the front of the rubber support H comprises a tubular wall having an inner face f1 allowing a tight fixation (friction fixation) of the rear end 16a of the tank 16 and an outer face f2 on which at least one projection 22 projects radially outwardly.
- This projection 22 is here an annular rib which extends continuously over the circumference of the tubular wall of the inner portion January 1.
- the rib has on the rear a surface which is preferably substantially flat and perpendicular to the longitudinal axis X.
- This annular rib here cylindrical, is devoid of slot (solid rib) and therefore little deformable radially and very little flexible.
- the rubber support H is made of a plastic material for injection molding and for slightly compressing the inner portion 1 1 during assembly.
- each of these ribs 23 has a front end 23a beveled and tapered (the grooves formed between the ribs widening towards the front).
- Two successive slopes can be formed on the internal face f1: a first slope 24, larger, which extends to the front end of the inner portion 1 1 and a second slope 25, less important, defined by the front end 23a of the ribs 23 and extending here between the projection 22 and a transition zone 23b of the ribs 23.
- the cavity 26 extends axially forwardly from a bottom face 28 of the mounting member 12 to the axial opening 27.
- the rear end 16a of the reservoir 16 recessed in the cavity 26 to the bottom 28 and clamped here over more than half the length of the inner portion 1 1, thus outcropping at the first opening 7.
- the rear end 2a of the tubular body 2 is formed by a clip holder 30 which extends the barrel 20.
- the clip holder 30 comprises an outer shoulder 30a in contact with a rear edge 20a formed at the rear end of the tubular shaft.
- This one-piece type clip holder 30 may be longer than the push device 6 but has a length much shorter than the length of the barrel 20 and slightly less than the length of the clip C.
- the clip support 30 comprises an annular wall 31 of Retention of the pusher device 6. In less preferred embodiments, a piece without a one-piece clip which serves for mounting the pusher device 6 may be substituted for the clip holder 30.
- the clip holder 30 is screwed or otherwise attached in the barrel 20, so that the push device 6 can be detached from the barrel 20 when removing the clip.
- this clip support 30 In the screwed configuration of the clip holder 30, it is fixed relative to the shank 20 (with a contact between the shoulder 30a and the edge 20a of the shank) and defines the rear end 2a of the clip support 30.
- the annular wall 31 for holding the push device 6 makes it possible to slide the rubber holder H between the recessed position shown in the figure
- the recessed position of the rubber support H is obtained when the projection 22, here of annular shape, abuts against the front of pins R1, R2 formed integrally with the annular wall 31 of retention, near the internal shoulder 20b.
- the front surface S1, S2 of the pins R1, R2 is preferably flat and perpendicular to the longitudinal axis X.
- two slots 31b, 31c are formed on the inner face 31a of the annular wall 31 of retention. More particularly, these slots 31b, 31c are formed through ribs 32, 33 opening radially inwards to allow snapping of the projection 22 annular.
- each of the ribs 32, 33 forms a pin R1 or R2 which blocks the sliding back of the pusher device 6, thus maintaining the spring 8 (visible in Figure 2) in the compressed state.
- each of the slots 31b, 31c here has a width equal to the width of the pins R1, R2 (a width of the order of 2 mm for example).
- Each of the two ribs 32, 33 extends substantially parallel to the longitudinal axis X from the associated pin R1 or R2 to a front end 32a, 33a.
- the lugs R1 and R2 are arranged on the same circumferential zone (at the same axial distance from the internal shoulder 30b) and are preferably diametrically opposed.
- the slots 31b, 31c are here of rectangular format (with a constant width smaller than the external diameter D1 of the tank 16, for example about
- each of the lugs R1, R2 delimits a rear edge of the slots 31b 31c and projects radially inwardly relative to the remainder of the internal face 31) of the annular portion 31.
- each of the pins R1, R2 is as narrow as the slot respectively associated 31b or 31c, so as to facilitate the latching operation of the pusher device 6 in the tubular body 2.
- the slots 31b, 31c extend longitudinally over a distance d1 which is greater than the distance d between the internal shoulder 30b of the clip support and the external shoulder 11a. formed on the tubular wall of the pusher device 6.
- the retention of the pusher device 6 of the feed mechanism 15, inside the tubular body 2 is permitted by the clip holder 30 simply by virtue of the cooperation between the projection 22 which slides at the slots 31b, 31c and the two pins R1, R2 rigid formed on the inner face 31a of the annular wall 31 of retention.
- the projection 22, preferably in the form of a ratchet rib has a very small height, of the order of 0.2 mm (radial height measured relative to the substantially cylindrical surface of the face f2 screw with respect to the pins R1, R2 during sliding), and more generally less than 0.6 mm to be able to pass on the two pins R1, R2 of retention to the mounting of the rubber support H. This height remains sufficient to abut against these pins R1, R2 back so that the rubber holder H can not be removed from the clip holder 30.
- the external diameter D5 defined by the projection 22 remains much smaller than the largest diameter of the rubber support H which corresponds substantially to the diameter D7 (FIG. 7A) formed in the rear outlet of the axial passage of the support.
- this diameter D5 is slightly greater than the spacing distance L5 (FIG. 7B) between the two lugs R1, R2 allowing the retention.
- the difference between these two dimensions is less than or equal to 0.5 mm.
- the slots 31b, 31c of the annular wall 31 of retention form windows of the clip support 30 situated further forward than the shoulder. external 30a.
- This outer shoulder 30a is further closer to the windows than the inner shoulder 30b which is arranged further back.
- the clip support 30 provided with windows can be easier to obtain during an injection molding, given the interference of the slots 31b, 31c with the ribs 32, 33.
- the windows which extend from the outer shoulder 30a are sufficiently long to interfere with the external thread 30c of the clip holder 30 (the corresponding thread being split), as can be seen in FIG. 3 and FIG. external thread 30c is relatively close to the outer shoulder 30a so that screwing is made easier.
- the clip holder 30 may have a generally tubular shape with:
- a rear section 34 arranged in the axial extension of the barrel 20 and comprising a mounting base 35 for mounting the clip C in a manner known per se;
- the front section 36 of the clip support 30 comprises a tubular portion 36a for attachment to the shaft 20 including the external thread 30c and extending around and away from the reservoir 16.
- the end portion 30d is arranged in the extension of the tubular portion 36a fixing.
- the end portion 30d has an annular edge in contact with a cover tube 21 arranged around the reservoir 16 and an axial orifice 37 having a reduced circular section relative to the passage section defined by the tubular portion 36a fixing.
- the axial orifice 37 has an internal diameter D2 at least 30% smaller than the internal diameter D7 of the first opening 7.
- the annular wall 31 of retention is for example arranged in a junction zone between the rear section 34 and the front section 36 or extends on either side of the external shoulder. 30a.
- the pins R1, R2 can be located in the rear section 34 while the slots 31b, 31c are located in the front section 36.
- the rubber support H can slide both against an inner face 34a of the rear section 34 (via the widest part of the rubber support H) and against another inner face formed on the annular wall 31 of retention (via of the projection 22 annular), which improves the translation guide along the longitudinal axis X.
- the ribs 32, 33 have their front ends 32a, 33a adjacent to the end portion 30d of the clip support 30, so that they significantly stiffen the front section. 36 of the clip holder 30.
- the rubber support H has a transverse wall 40 which defines on one side (front) the bottom 28 of the cavity 26 and on the other side ( rear) the bottom 12a of the cavity 13 to house the rubber E.
- An axial passage hole 42 is formed, preferably centrally, in the transverse wall 40 to allow access to the tank 16 from outside the tubular body 2 and insert mines.
- the passage opening 42 opens here directly into the reservoir 16.
- the rubber E is kept entirely outside the interior volume defined by the tubular body 2 in the rest position, recessed.
- the spring 8 urges the pusher device 6 which engages, at the projection 22, on the surfaces S1, S2 of the pins R1, R2 to obtain this rest position. In this rest position, that is to say apart from any actuation on the pusher device 6, the mine 5 is kept locked.
- the cap 9 can then cover the rubber E of elastomeric material and an internal shoulder 9a formed on the inner face of the cap 9 comes for example to engage against an annular edge 12c of the rubber support H.
- This annular edge 12c here surrounds the opening 12b of the mounting member 12.
- the rubber E is kept locked in the cavity 13 of the mounting member 12 in a manner known per se, for example with the aid of internal ribs 12d which are elongate in a direction parallel to the longitudinal axis X from the bottom 12a to near the opening 12b.
- One or more internal ribs may be formed on a side face of the cap 9 to obtain a clamp on the eraser E.
- a forward displacement of the pusher device 6 is obtained, by a distance that may be equal to the distance d or slightly lower.
- a rear face 4a of the lead guide tip 4 may for example form an axial abutment which makes it possible to stop the advance of the head 17a of the clamp 17, which means stopping the forward sliding of the pusher device 6.
- the shoulder 11a is located at the inner shoulder 30b and is finds almost support on the latter. These shoulders 11a and 30b may supplement or complete the stop system sliding forward.
- the mine 5 can also advance a certain distance with respect to the tip 3 of the tubular body 2 and the tip guide 4 (the latter remaining stationary in the bore 3a of the tip 3 due to an associated frictional force greater than the friction force between the lead guide tip 4 and the mine 5).
- the lead distance of the lead 5 is, however, less than the distance d due to the loosening of the gripper head 17a, which occurs approximately in the middle of the feed path of the gripper 17, due to the shift towards the end. beforehand with respect to the clamping member 18.
- the frictional force between the lead guide tip 4 and the lead 5 is then sufficient to lock in position the lead 5 during the end of the advance of the pusher device 6 which are associated tank 16 and the clamp 17.
- the spring 8 pushes back the tank 16, the clamp 17 and the push device 6.
- the mine 5 makes only a very weak recoil.
- the whole of the feed mechanism 15 returns to the rest position, as shown in FIG. 1, and the head 17a of the clamp 17 again immobilizes the mine 5.
- the external diameter D 3 of the support of FIG. clip 30 may represent more than double the internal diameter D2 formed on the side of the end portion 30d, this dimensioning to apply a greater gripping force that can be useful to achieve a vigorous scrub, generally more effective.
- the proximity of the gripping zone 45 with the eraser E also facilitates the scrubbing operation.
- the diameter D4 at the rear of the front section 34 of the clip support 30 may be of the order of 10 mm and the diameter D3 may be slightly less than diameter D4, for example of the order of 9 mm.
- Such a dimension is advantageous for the effectiveness of the scrub compared to conventional mechanical pencils whose diameter at the rear of the tubular body is only 6 mm.
- this arrangement does not prevent the use of a standard-size rubber E having a diameter of about 6 mm.
- One of the advantages of the invention lies in the robustness and ergonomics of the rear part of the mechanical pencil 1, with the possibility for example of positioning the rubber E as close to the rear end 2a of the tubular body 2.
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Automatic Assembly (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1252418A FR2988028B1 (fr) | 2012-03-16 | 2012-03-16 | Porte-mine avec organe poussoir coulissant |
| PCT/FR2013/050435 WO2013135989A1 (fr) | 2012-03-16 | 2013-03-01 | Porte-mine avec organe poussoir coulissant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2825394A1 true EP2825394A1 (fr) | 2015-01-21 |
| EP2825394B1 EP2825394B1 (fr) | 2020-08-12 |
Family
ID=48014085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13712873.2A Active EP2825394B1 (fr) | 2012-03-16 | 2013-03-01 | Porte-mine avec organe poussoir coulissant |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9340061B2 (fr) |
| EP (1) | EP2825394B1 (fr) |
| JP (1) | JP6147775B2 (fr) |
| BR (1) | BR112014022783B8 (fr) |
| FR (1) | FR2988028B1 (fr) |
| MX (1) | MX350479B (fr) |
| WO (1) | WO2013135989A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7535056B2 (ja) * | 2019-04-30 | 2024-08-15 | ソシエテ ビック | 筆記用具のための後退可能な要素 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4619539A (en) | 1984-02-13 | 1986-10-28 | Kotobuki & Co, Ltd. | Mechanical pencil equipped with lead-storing cartridge |
| BR8403212A (pt) * | 1984-06-29 | 1985-02-20 | Jose Eduardo Rocha Cabral | Lapiseira |
| US5354141A (en) | 1991-03-04 | 1994-10-11 | Pilot Precision Kabushiki Kaisha | Mechanical pencil with shaking type lead-feeding mechanism |
| JPH10166783A (ja) * | 1996-10-07 | 1998-06-23 | Kotobuki Kk | ダブルチャック式シャープペンシル |
| JP3831071B2 (ja) * | 1997-06-13 | 2006-10-11 | パイロットプレシジョン株式会社 | 振出式シャープペンシル |
| JP2002059686A (ja) * | 2000-08-18 | 2002-02-26 | Kotobuki:Kk | キャップ固定構造 |
| FR2936739B1 (fr) * | 2008-10-03 | 2013-03-22 | Bic Soc | Instrument d'ecriture comprenant un organe d'extremite monte par emmanchement. |
| JP5215281B2 (ja) * | 2009-12-03 | 2013-06-19 | 三菱鉛筆株式会社 | シャープペンシル |
-
2012
- 2012-03-16 FR FR1252418A patent/FR2988028B1/fr not_active Expired - Fee Related
-
2013
- 2013-03-01 MX MX2014011012A patent/MX350479B/es active IP Right Grant
- 2013-03-01 BR BR112014022783A patent/BR112014022783B8/pt active IP Right Grant
- 2013-03-01 JP JP2014561487A patent/JP6147775B2/ja not_active Expired - Fee Related
- 2013-03-01 US US14/385,206 patent/US9340061B2/en active Active
- 2013-03-01 EP EP13712873.2A patent/EP2825394B1/fr active Active
- 2013-03-01 WO PCT/FR2013/050435 patent/WO2013135989A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013135989A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6147775B2 (ja) | 2017-06-14 |
| MX2014011012A (es) | 2015-03-10 |
| EP2825394B1 (fr) | 2020-08-12 |
| US20150043956A1 (en) | 2015-02-12 |
| CN104379359A (zh) | 2015-02-25 |
| BR112014022783B8 (pt) | 2021-01-12 |
| MX350479B (es) | 2017-09-07 |
| JP2015513490A (ja) | 2015-05-14 |
| US9340061B2 (en) | 2016-05-17 |
| BR112014022783B1 (pt) | 2020-10-27 |
| WO2013135989A1 (fr) | 2013-09-19 |
| FR2988028B1 (fr) | 2014-04-11 |
| FR2988028A1 (fr) | 2013-09-20 |
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