TW201914838A - Dual-purpose writing implement - Google Patents

Abstract

A writing implement (10) provided with a longitudinal axis, comprising: - an inner sheath (30) bearing a positioning cam and an ink cartridge (50); - an intermediate sheath (32), bearing a positioning cam of a stylus (80); and - a positioning control sheath (34) comprising an ink cartridge positioning cam path (52) is arranged cooperating with the ink cartridge positioning cam (50) as well as a stylus positioning cam path (86) cooperating with the stylus positioning cam (80). The inner (30), intermediate (32) and positioning control (34) sheaths are inserted into on another. The travel of the ink cartridge positioning cam (50) in the ink cartridge positioning cam path (52) controls the movement of the inner sheath (30) along the longitudinal axis. The travel of the stylus positioning cam (80) in the stylus positioning cam path (86) controlling the movement of the intermediate sheath (32) along the longitudinal axis.

Description

Dual function writing instrument

The invention relates to the field of writing instruments, such as pens. More particularly, the present invention relates to a writing instrument that combines one of the traditional writing functions of ink with one of the graphical gesture recognition functions for handwriting digitization.

A writing instrument comprising the following components is known from the prior art: a tip that conveys ink at one end of one of the arms of the writing instrument; and a stylus or digital pen tip that is connected to allow identification of the graphic for digital writing One of the gestures, the stylus or digital nib is positioned at the opposite end of the arm of the writing instrument. Other writing instruments that combine the two functions include a single identical nib that enables ink to be delivered and performs digital recognition. However, these two types of writing instruments do have drawbacks.

In the first case, the writing experience is weakened for users who are forced to frequently flip the pen to use the ink writing function and the digital recognition function. In the second case, the fact that the same nib performs two functions means that the ink delivered during the conventional use remains on the nib during the digital writing operation. However, the presence of this ink can damage or soil the digital identification medium, which is most commonly a screen of a tablet or phone. To avoid this drawback, it has become necessary to use a special ink or to have a specific device for delivering ink. Standardized ink cartridges can no longer be used. In addition, these devices do not avoid any risk of ink remaining on the nib.

Therefore, preferably, the user can have one of the two separate nib writing instruments having the function of performing the conventional writing function and the digital recognizing function without changing the writing experience of the user.

A writing instrument comprising a plurality of retractable nibs is also known from the prior art. However, the associated mechanism occupies a significant space in the writing instrument, which prevents the placement of electronic components associated with the identification of graphical gestures therein. Therefore, the associated mechanism is not suitable for a combination of one of the traditional writing functions of ink and one of the writing gestures for handwritten digitization.

Accordingly, the present invention is intended to address such deficiencies by proposing a writing instrument having a torsional shape having a substantially symmetrical symmetry of one of the longitudinal axes, the writing instrument comprising: a substantially symmetrical torsion inner sheath intended to receive a Ink cartridge, carrying an ink cartridge positioning cam; a substantially symmetrical twisting intermediate sheath intended to be coupled to a stylus tip, carrying a stylus positioning cam; and a positioning control sheath having a substantially symmetrical a shape of the ink, wherein an ink cartridge positioning cam path is configured to cooperate with the ink cartridge positioning cam and a stylus positioning cam path cooperates with the stylus positioning cam, the inner sheath being inserted into the intermediate sheath And the intermediate sheath is inserted into the positioning control sheath, the movement of the ink cartridge positioning cam in the ink cartridge positioning cam path controls the movement of the inner sheath along the longitudinal axis, and the stylus positioning cam is Traveling in the stylus positioning cam path controls movement of the intermediate sheath along the longitudinal axis.

Since the jackets carrying the cams and the cam paths are inserted into each other, the mechanism for controlling the digital recognition stylus (or the digital nib) and the ink cartridge that carries one of the writing nibs can be accommodated. In the body of the writing instrument, at the same time occupying a reduced volume relative to prior art mechanisms. In fact, it is not particularly necessary to provide the presence of a spring and/or a barrel that occupies a significant space in the body of the writing instrument. Therefore, it becomes possible to accommodate the components of the digital recognition (such as a force sensor, a microprocessor, a battery, etc.) participating in the writing without significantly increasing the volume of the writing instrument.

According to a preferred embodiment of the present invention, the ink cartridge positioning cam path includes a circumferential portion formed circumferentially in the positioning control sheath and a substantially straight line inclined with respect to the longitudinal axis of the positioning control sheath section. This particular cam path profile selection can be controlled by rotating the positioning control sheath (this is a simple action performed by the user) to control the movement of the inner sheath and thus the deployment and retraction of the ink writing tip in the writing instrument.

According to a preferred embodiment of the present invention, the stylus positioning cam path includes a circumferential portion formed circumferentially in the positioning control sheath and inclined with respect to the longitudinal axis of the positioning control sheath. Straight line. This particular cam path profile selection allows control of the movement of the intermediate sheath and thus the deployment of the stylus in the writing instrument by rotating the positioning control sheath (this is a simple action for the user) And retracted.

Preferably, the intermediate sheath carries two stylus positioning cams, and the two stylus positioning cams are symmetrically disposed on the sheath with respect to one of the intermediate sheaths including the longitudinal axis, and Two of the stylus positioning cam paths are disposed in the positioning control sheath, and the stylus positioning cam paths define a path having a similar contour. Providing a dual cam path allows for finer control of the position of the intermediate jacket along the longitudinal axis. A three cam path is also available.

Preferably, the writing instrument further includes means for blocking rotation of the inner sheath relative to the intermediate sheath about the longitudinal axis of the writing instrument.

Advantageously, the writing instrument further comprises a decorative sheath having a substantially symmetrical twisting shape, wherein the positioning control sheath is inserted, the decorative sheath comprising: a stationary component and a rotating component; and for blocking the middle A member of the sheath about which the longitudinal axis of the writing instrument rotates relative to the stationary member of the decorative sheath.

To facilitate user control of movement of the inner sheath and the intermediate sheath along the longitudinal axis, the writing instrument further includes a decorative sheath having a generally symmetrical twist shape in which the positioning control sheath is inserted, the positioning The control sheath has an annular projection on its outer surface that is intended to cooperate with a plurality of frictional projections disposed on the inner surface of the decorative sheath. Thus, the cooperation of the annular projection and the friction projection allows the movement of the cam to be controlled by rotating the decorative sheath.

Preferably, in order to limit the electromagnetic interference of the digital recognition of the destructible graphic gesture, the decorative sheath comprises at one end a preferably substantially conical one end piece, the end piece intended to receive a writing nib, comprising one One wall of electromagnetic shielding.

Advantageously, in order to be able to configure a printed circuit board therein, the intermediate sheath includes a receiving portion having at least one housing intended to receive a printed circuit board. For example, the receiving portion has a pyramidal cross-section having three faces, each of which is substantially planar and constituting a housing intended to receive a printed circuit board. In an alternative, the receiving portion has a substantially circular cross section and includes two flat portions that are symmetrically disposed relative to one of the longitudinal axes including the intermediate sheath.

Preferably, the writing instrument further includes a force sensor disposed in the intermediate sheath.

In accordance with a preferred embodiment of the present invention, the writing instrument includes a printed circuit board that permits activation of the force sensor disposed on a face of the receiving portion.

In accordance with a preferred embodiment of the present invention, the intermediate sheath includes a housing that is intended to receive a battery intended to be powered to the force sensor.

According to a preferred embodiment of the present invention, the writing instrument further includes a USB connector for recharging a battery, the battery being intended to supply power to, for example, one of the ends of the writing instrument Detector.

According to a particular embodiment of the invention, the decorative sheath includes a start button that is coupled to one of the power sensor power supply systems.

The present invention is also directed to a writing instrument and an ink cartridge having a writing pen tip, wherein the writing instrument is a writing instrument according to any of the preceding claims and wherein the ink is inserted into the inner sheath .

The invention also relates to an assembly of a writing instrument and a stylus tip, the stylus tip being intended for digital recognition of a graphic gesture, wherein the writing instrument is a writing instrument according to any of the preceding claims And wherein the stylus tip is fixed into the intermediate sheath.

Figure 1 shows a writing instrument 10 in accordance with a particular embodiment of the present invention. The writing instrument 10 includes a decorative sheath 11 having a generally symmetrical torsional shape. In the example shown in the figures, the decorative sheath 11 has a generally tubular shape. However, other shapes are contemplated, such as, for example, one having a triangular, square or hexagonal cross-section. It is also contemplated that the outer wall of the decorative sheath 11 has a cross-section having a shape that is different from the shape of the inner wall of the decorative sheath 11 defining the passage formed in the decorative sheath 11. For example, the outer wall may have a hexagonal cross section and the inner wall may have a circular cross section.

Conventionally, the decorative end piece includes a tubular stationary member 12 and a rotating member 13 having a diameter larger than one of the stationary members 12 and fitted to the stationary member to be rotatable relative to the stationary member 12. The members that make it possible to fix the stationary member 12 and the rotating member 13 and rotate the rotating member 13 relative to the stationary member 12 are known per se, and will not be described in detail herein.

A writing tip 14 is attached to the decorative sheath 11 at a first end of the decorative sheath 11 (referred to as the writing end 15). More specifically, the writing tip is connected to the free end of the stationary member 12 of the decorative sheath 11. The substantially conical twirling writing tip 14 includes an exit aperture 16 through which the writing tip will exit, allowing for digital recognition of conventional writing or graphical gestures of ink. Traditionally, the nib 14 is attached to the decorative sheath, for example by being screwed into a pitch, which may be disposed on one or the outer surface of one of the decorative sheaths 11, or forcibly inserted therein. These connecting members are known per se, and will not be described here. The writing tip 14 is preferably provided with a wall 14P including an electromagnetic shield to limit electromagnetic interference that can jeopardize the digital recognition of the graphical gesture.

The trim sheath 11 also includes on its outer surface 12E of the stationary member 12 two gripping surfaces 18 disposed adjacent the writing end 15. The gripping surface 18 is configured on a button to be described later such that a different function of one of the force sensors capable of participating in the digital recognition of the graphical gesture can be activated. The gripping surface 18 can include a non-slip surface, such as made of an elastomer, distributed over a portion of the circumference of the stationary component 12 of the decorative sheath.

The decorative sheath 11 conventionally includes a staple (or clip) 22 adjacent the end 20 or distal end 20 opposite the writing end 15, the staple (or clip) 22 being connected via a connecting ring 24. To the rotating part 13 of the decorative sheath, the connecting ring 24 is forcibly inserted, for example, on the rotating part 13 of the decorative sheath. This clip 22 and its connecting members to the decorative sheath 11 are known per se and will not be described in detail herein.

As seen in Figure 1, the distal end 20 of the decorative sheath 11 (which is at the end of the rotating member 13) also includes a substantially tubular charging tip 26 that includes a slit 28 that provides Access to one of the conventional USB connectors 29 positioned in the writing instrument 10 is connected to the end piece as will be seen later. The USB connector 29 is itself standard and known and will not be described in further detail herein. In an alternative not shown, the attachment end piece of the USB connector 29 can be positioned on the side of the decorative sheath 11 rather than at its end. In this case, the slit 28 will be formed in the end wall of the decorative sheath 11.

As can be seen in Fig. 2, the decorative sheath 11 (here, the rotating member 13 of the decorative sheath) is provided on its inner surface 13I with a friction projection 13F extending on the circumference of the inner surface 13I. The friction projections 13F are, for example, substantially rectilinear, parallel to each other, and each extend along the longitudinal axis of the decorative sheath 11 while being aligned in a direction perpendicular to one of the axes.

3 to 13 show the writing instrument 10 without the decorative sheath 11. As can be seen, the writing instrument 10 includes a sheath 30, an intermediate sheath 32, and a positioning control sheath 34 that are inserted into one of the other, all of which have a generally symmetrical torsional shape. In the example shown in the figures, inner sheath 30, intermediate sheath 32, and positioning control sheath 34 have a generally cylindrical torsional shape, i.e., a generally tubular shape. More specifically, the inner sheath 30 having the smallest diameter among the three is inserted into the intermediate sheath 32 having a larger diameter. The intermediate jacket 32 is then inserted into a positioning control jacket 34 having a larger diameter. Finally, the inner sheath 30, the intermediate sheath 32, and the positioning control sheath 34 are all housed in a volume defined by the decorative sheath 11 that is invisible to any of them.

In an alternative not shown, at least one of the outer sheath 30, the intermediate sheath 32, or the positioning control sheath 34 may be considered to have a cross-section having a different cross-section than the passage defined in the sheath. One of the shapes of the inner wall of the sheath. For example, the outer wall of at least one of the inner sheath 30, the intermediate sheath 32, or the positioning control sheath 34 may have a hexagonal cross section, and the inner wall may have a circular cross section.

The inner sheath 30, particularly visible in FIG. 3, includes an inner tubular portion 35 that is open at a free end 34 to receive an ink cartridge 36 that is inserted into the inner tubular portion 35. The ink cartridge, which is here a standard ink cartridge according to one of the prior art, comprises a generally tubular body, one end of which is provided, for example, with an ink writing tip 38 for conveying one of the balls of ink (not shown). . The opposite ends 40 of the inner tubular portion 35 are closed and substantially planar.

The writing instrument 10 further includes means for blocking rotation of the inner sheath 30 relative to the intermediate sheath 32. More specifically, the inner sheath 30 includes a radial blocking member 42 that projects from the closed end 40 of the inner tubular portion 35. The radial blocking member 42 includes two radial blocking tabs 44 that cooperate with two radially blocking shoulders 46 of complementary shapes disposed in the intermediate sheath 32, respectively, as shown in FIG. It can be seen that the two radial blocking tabs 44 can rest on the two radial blocking shoulders 46.

The radial blocking tab 44 and the radial blocking shoulder 46 are configured such that the radial blocking tab 44 is slidable on the radially blocking shoulder 44 in a direction parallel to the longitudinal axis of the inner sheath 30 to block the inner portion The sheath 30 moves radially relative to the intermediate sheath 32. To this end, the radial blocking shoulder 46 extends in a direction parallel to the axis of the intermediate sheath 32. The radial blocking tab 44 projects from the inner tubular portion 35 in a direction extending in a direction perpendicular to the longitudinal direction of the inner tubular portion 35. The radial blocking tabs 44 are symmetrically disposed on the circumference of the inner tubular portion 35. In an alternative not shown, there may be only one radial blocking tab 44 and only one radial blocking shoulder 46.

The guiding member 34 further includes a third radial blocking tab 47 that protrudes from one of the directions along which the tubular member extends in a direction perpendicular to the two radial blocking tabs 44 and Positioned at a distance equal to the two radial blocking tabs 44.

The third radial blocking tab 47 cooperates with a radial blocking groove 48 having a complementary shape, the radial blocking groove 48 being disposed in the intermediate sheath 32 and in a direction parallel to the axis of the intermediate sheath 32 Extension, as seen in Figure 4. Due to its orientation, the radial blocking tabs 44, 47 cooperate with the radially blocking shoulder 46 on the one hand and the radial blocking groove 48 prevents the inner sheath 30 from being wound about the longitudinal axis of the writing instrument 10 relative to the intermediate sheath 32 rotation.

The guiding member 34 further includes a pin 49 that protrudes from the inner tubular portion 35 in a direction opposite to the direction in which the third radial guiding tab 46 extends. This pin 49 is provided with an ink cartridge positioning cam 50 at its end. The ink cartridge positioning cam 50 or inner cam 50 has a substantially circular cross section and is intended to cooperate with one of the ink cartridge positioning cam paths 52 disposed in the positioning control sheath 34, as shown in Figure 9 and will be outlined later.

We will now describe the intermediate sheath 32 with particular reference to Figures 4-8. The intermediate sheath 32 having a generally tubular shape includes a receiving portion 58 at one end intended to be coupled to a stylus pen 54, referred to as the writing end 56. The housing portion 58 is provided with at least one housing that is intended to receive a printed circuit board 59. In the embodiment shown in the figures, the receiving portion 58 has a pyramidal cross-section having three faces 58f, each of which is substantially planar and which forms one of the portions of the portion intended to receive the printed circuit board 59.

In an alternative not shown, the receiving portion 58 has a substantially circular cross section and includes two flat portions that are substantially symmetrically disposed to form a substantially flat surface with respect to one of the longitudinal axes including the intermediate sheath 32. In yet another alternative not shown, the receiving portion 58 has a square cross-section with four faces, each of which is substantially planar.

The writing end 56 of the intermediate sheath 32 includes means for blocking rotation of the intermediate sheath 32 relative to the stationary component 12 of the decorative sheath. Rotating the blocking member prevents rotation of the intermediate sheath 32 about the longitudinal axis of the writing instrument 10 relative to the stationary member 12 of the decorative sheath. As can be seen in particular in Figure 6, the means for blocking the rotation of the intermediate sheath 32 here comprises a recess 58g formed in the receiving portion and a radial blocking rib 12n of the stationary part 12 of the decorative sheath, said radial blocking The rib 12n is inserted into the radial blocking groove 58g.

More specifically, in the embodiment illustrated in the figures, there are three radial blocking grooves 58g positioned on the edges of the receiving portion 58. The radial blocking groove 58g is defined by a straight wall 58p or an inclined wall 58p'. For example, one of the radial blocking grooves 58g is defined by two straight walls 58p, and the other two radial blocking grooves 58g are defined by a straight wall 58p and an inclined wall 58p'. Here, the straight wall 58p refers to a wall that forms an angle of about 90 with the face 58f. An inclined wall forms an angle of less than 30 with one side 58f. The wall 58p has the advantage of being more rigid, and an inclined wall 58p' makes it possible to reduce the space occupied by the wall. Naturally, other wall combinations can be considered.

The ribs 12n are present in a number corresponding to the number of the radial blocking grooves 58g and protrude from the inner surface 12I of the stationary member 12 of the decorative sheath. The rib 12n extends in the longitudinal direction of the decorative sheath 11.

At its end opposite the writing end 56 (referred to as the refill end 60), the intermediate sheath 32 includes an intermediate tubular portion 62. The receiving portion 58 and the intermediate tubular portion 62 are hollow and travel by the same common intermediate passage 64 intended to accommodate one of the inner sheath 30 and the ink cartridge 36. The intermediate passage 64 appears at the writing end 56 and the refilling end 60. The receiving portion 58 and the intermediate tubular portion 62 are defined and separated by a set of rings 66.

As can be seen in particular in Figure 7, in this embodiment of the invention, the receiving portion 58 receives a force sensor 68 having a cylindrical shape at its free end (referred to as the receiving end 67). The force sensor 68 includes a receiving member 70 coupled to one of the connecting rings 72 supporting a stylus pen tip 54, such that the connecting ring 72 is translationally secured with the receiving member 70. The receiving member 70 can be, in particular, part of a pressure measuring surface or directly connected to a pressure measuring surface that responds to the pressure exerted by the user on the surface by the user via the stylus pen tip 54 by the writing force. The force applied is sensitive. Thus, the force sensor 68, for example, makes it possible to measure the force experienced by the stylus tip 54 as applied by the writing medium in response to the force applied by the user of the writing instrument 10 to the medium via the stylus tip 54. The force sensor 68 itself is known from the prior art and will not be described in further detail herein.

In particular, as we can see in FIG. 8, force sensor 68 is controlled by printed circuit board 59. Activation of a particular function of printed circuit board 59 can be controlled by two start buttons 73, for example, each of which is supported by a respective face 58f. The number of start buttons 73 and their functions can be varied naturally.

In the embodiment shown in the figures, printed circuit board 59 includes a first component wound around face 58f and a second component connected to the first component to refill end 60. More specifically, the printed circuit board 59 is housed in a housing that is formed to the other end of the intermediate jacket 32. 8 illustrates an example geometry of a housing housing a printed circuit board 59 that includes, in particular, a bend to bypass one of the positioning cams (described later) supported by the intermediate jacket 32. Of course, this geometry may vary based on the shape of the intermediate jacket 32 and the size of the printed circuit board 59, which in turn depends on the desired digital recognition function.

The intermediate tubular portion 62 includes a longitudinal opening 74 that extends in a direction parallel to one of the longitudinal axes of the intermediate tubular portion 62 through which the inner cam 50 can pass when the inner sheath 30 is inserted into the intermediate sheath 32. The opening 74 protrudes as shown in FIGS. 3 and 4. The length of the longitudinal opening 74 is selected such that the inner cam 50 can travel over the entire inner cam path 52.

Moreover, in the embodiment shown in the figures, the intermediate tubular portion 62 includes a housing 76 that houses a battery 78 such that power can be supplied to the printed circuit board associated with the force sensor 68. To this end, the battery 78 is preferably tubular and has a diameter that is less than one of the diameters of the intermediate tubular portion 62. Assuming a battery 78 is present, the length of the longitudinal opening 74 will be selected to enable insertion of the battery into the housing 76 during installation of the writing instrument 20.

The battery 78 cooperates with a USB connector 29 that is inserted into the extension of the intermediate passage 64 to enable recharging via this USB port 29. In an alternative, battery 78 is not rechargeable (which may, for example, involve a battery), and thus there is no need to have USB connector 29.

Additionally, the intermediate tubular portion 62 preferably includes two stylus positioning cams 80 adjacent the refill end 60 that are symmetrically positioned on the tubular portion 62 on either side of their longitudinal axis. on. The stylus positioning cam 80 or the intermediate cam 80 has a shape similar to the shape of the inner cam 50, that is, a substantially cylindrical twist shape. The inner cam 50 projects from the resilient lug 82 cut into the intermediate tubular wall 62.

The resilient lug 82 extends in a direction parallel to one of the longitudinal axes of the intermediate sheath 32. The resilient lug 82 is defined by a semi-elliptical cut 84. The fact that the inner cam 50 is supported by the resilient lugs 82 allows flexibility to be imparted to the support of the inner cam 50 to facilitate mounting the intermediate sheath 32 in the trim sheath 11.

We will now describe the positioning control sheath 34 in more detail with reference to Figures 9-13. The positioning control sheath 34 has a generally tubular shape having a substantially constant diameter and is open at both ends thereof. In the embodiment of the invention shown in the figures, the positioning control sheath 34 is divided into two portions defined by a defined annular projection 91, namely a proximal portion 88 and a distal portion 90. Here, the proximal portion 88 refers to the tubular portion that is closest to the writing end 15 and the distal portion 90 refers to the tubular portion that is closest to the end opposite the writing end 15.

The distal end portion 90 is provided with an annular projection 92 that includes a frictional projection 92F similar to the frictional projection 13F on the inner surface 13I of the rotating member of the decorative sheath 11, which frictional projection 92F is intended to The friction protrusions 13F cooperate. The friction protrusion 13F of the rotating member engages with the friction protrusion 92F of the positioning control sheath 34 to rotate the positioning control sheath 34 when the rotating member 13 of the decorative sheath is rotated by the user. The cooperation of the friction protrusions 13F and 92F makes it possible to ensure the rotation of the positioning control sheath 34 and the rotating member 13. Therefore, the cooperation of the friction protrusion 13F and the friction protrusion 92F of the annular protrusion 92 allows the user to control the movement of the inner cam 50 and the intermediate cam 80 by rotating the decorative sheath 11.

In an alternative that is not shown, the outer wall of the positioning control sheath 34 has a polygonal cross section (e.g., a hexagon), and the presence of frictional protrusions in both the decorative sheath 11 and the intermediate sheath 32 becomes optional. In effect, the rotational coupling of the positioning control sheath 34 and the decorative sheath can then be accomplished by the cooperation between the apex of the outer wall of the positioning control sheath 34 and the inner surface 13I of the rotating member 13 of the decorative sheath.

The positioning control sheath 34 includes an ink cartridge positioning cam path 52 or inner cam path 52 disposed in its proximal portion 88 that is intended to travel by the inner cam 50. More specifically, the ink cartridge positioning cam path 52 includes a substantially straight portion 98 that is circumferentially formed in one of the circumferential portion 96 of the positioning control sheath and is inclined relative to the longitudinal axis of the positioning control sheath 34. The circumferential portion 96 includes a stop 96B that marks the beginning of the cam path and thus the starting point of travel of the inner cam 50. Likewise, the straight portion 98 includes a stop 98B that marks the end of the cam path and thus the travel end of the inner cam 50. Here, it will be noted that the terms start and end points are arbitrary and correspond to the travel of the cam in the cam path in the direction of the retracting nib toward the end piece of the unfolding nib.

The advancement of the ink cartridge positioning cam 50 in the ink cartridge positioning cam path 52 allows control of the movement of the inner sheath 30 along the longitudinal axis of the writing instrument 10.

10 and 11 illustrate the retracted position of the inner sheath 30, i.e., the position of the inner sheath 30 furthest from the writing end 15. In this position, the inner cam 52 abuts the stop 96B. Because the ink cartridge 36 carrying the ink writing tip 38 is inserted into the inner sheath 30, this position corresponds to the position at which the ink writing tip 38 is retracted into the decorative sheath 11.

To move the inner sheath 30 toward the writing end 15, the user will first rotate the rotating member 13 of the decorative sheath about the longitudinal axis of the decorative sheath 11 in a clockwise direction. In fact, as previously seen, the rotating member 13 drives the rotational movement of the positioning control sheath 34 because the friction projections 13F and 92F ensure that the positioning control sheath 34 and the rotating member 13 rotate. Thus, the inner cam 50 will travel along the circumferential portion 96 of the inner cam path 52. Due to the fact that this portion of the cam path travels on the circumference of the positioning control sheath 34, this stroke has not caused the inner sheath 30 to move along the longitudinal axis of the writing instrument. Then, while the user continues to rotate the rotating member 13, the inner cam will reach the straight portion 98 of the inner cam path 52.

Because the linear portion 98 of the cam path extends non-circularly relative to the longitudinal axis of the positioning control sheath 34, it will be understood that the inner sheath 30 is along the writing instrument as the inner cam 50 travels over the linear portion 98 of the inner cam path 52. The vertical axis moves. In effect, the inner sheath 30 is prevented from rotating about the longitudinal axis of the writing instrument 10 relative to the rotational blocking members of the intermediate sheath 32 (i.e., the radial blocking tabs 44, the radially blocking shoulders 46, and the radial blocking grooves 48). The sheath 30 rotates relative to the intermediate sheath 32. The longitudinal movement of the inner sheath 30 is controlled by the continuous rotation of the positioning control sheath 34, which in turn is controlled by the rotation of the rotating member 13, which is attributed to the linear portion 98 of the cam path being inclined relative to the longitudinal axis of the positioning control sheath 34. The fact of extension.

Assuming that the ink cartridge 36 carrying the ink writing tip 38 is inserted into the inner sheath 30, the ink writing tip 38 is closer as the inner cam 52 travels toward the writing end 15 of the writing instrument on the straight portion of the inner cam path 52. At the exit aperture 16 and away from the exit aperture 16. Thus, when the inner cam 50 reaches the stop 98B, the writing tip 38 is locked in the writing position and the user can use the writing tip 38 to write. This position is illustrated in Figures 12 and 13.

Conversely, when the inner cam 52 travels toward the opposite end 20 of the writing instrument on the straight portion of the inner cam path 52, that is, when the user rotates the rotating member 13 in the counterclockwise direction, the ink writing tip 38 faces the decorative sheath 11 The inside is retracted.

Positioning control sheath 34 further includes at least one stylus positioning cam path 86 or intermediate cam path 86 disposed in its distal end portion 90 that is intended to travel by an intermediate cam 80.

More specifically, a stylus positioning cam path 86 includes a substantially linear portion 102 that is circumferentially formed in one of the circumferential portion 100 of the positioning control sheath and is inclined relative to the longitudinal axis of the positioning control sheath 34. The circumferential portion 100 includes a stop 100B that marks the beginning of the cam path and thus the starting point of travel of the intermediate cam 80. Likewise, the straight portion 102 includes a stop 102B that marks the end of the cam path and thus the travel end of the intermediate cam 80. Here, it will be noted that the terms start and end points are arbitrary and correspond to the travel of the cam in the direction of retracting the nib toward the end piece of the unfolding nib.

To facilitate user control of the movement of the inner and intermediate sheaths along the longitudinal axis, and in particular to make the movement more continuous, in the embodiment shown in the figures, the positioning control sheath 34 includes a distal end portion 90 disposed therein. Two stylus positioning cam paths 86 having one path of a similar profile are defined. In a first alternative, a single stylus positioning cam path 86 and a single stylus positioning cam 80 can be provided to simplify the mechanism. In another alternative, three stylus positioning cam paths 86 and three stylus positioning cams 80 can be provided to make the movement of the cam in the path more continuous and the user will be happy to control.

Similar to the foregoing, the travel of the stylus positioning cam 80 in the stylus positioning cam path 86 allows control of the movement of the intermediate sheath 32 along the longitudinal axis of the writing instrument 10. Also similar to the foregoing, the member for blocking the rotation of the intermediate sheath 52 about the longitudinal axis of the writing instrument 10 relative to the stationary member 12 of the decorative sheath (i.e., the blocking groove 58g and the radial barrier rib 12n) prevents intermediate protection. The sleeve 32 is rotated about the longitudinal axis of the writing instrument 10 relative to the stationary component 12 of the decorative sheath. Therefore, we will not describe the operations explained above. It will be noted, however, that the cam 80 and intermediate cam path 86 are configured such that the direction of rotation that allows the stylus tip 54 to expand and retract is reversed relative to the direction of rotation that allows the ink writing tip 38 to expand and retract, respectively. For example, in accordance with an embodiment of the invention illustrated in the figures, the deployment of the ink writing tip 38 needs to be rotated in a clockwise direction, and the deployment of the stylus tip 54 needs to be rotated in a counterclockwise direction.

Naturally, the examples illustrated in the figures and discussed above are provided by way of illustration only and not limitation. Various alternatives can be considered.

In particular, it is expressly provided that different illustrated embodiments can be combined to present other embodiments.

It should be emphasized that those skilled in the art can understand from the present invention that all features of the scope of the claims and the scope of the inventions, even if they are specifically described in combination with other specific features (individually and in any combination), Other features or combinations of features disclosed herein are not intended to be exhaustive or the technical environment does not make such combinations infeasible or meaningless.

10‧‧‧ writing instruments

11‧‧‧Decorative sheath

12‧‧‧Tubular stationary parts

12E‧‧‧Outer surface

12I‧‧‧ inner surface

12n‧‧‧radial barrier ribs

13‧‧‧Rotating parts

13E‧‧‧Outer surface

13F‧‧‧Friction protrusion

13I‧‧‧ inner surface

14‧‧‧ writing tip/end piece

14P‧‧‧ wall

15‧‧‧ writing end

16‧‧‧Exit hole

18‧‧‧Scratch surface

20‧‧‧ distal

22‧‧‧Start button/U-shaped nail/clip

24‧‧‧Connecting ring

26‧‧‧Tubular charging tip

28‧‧‧Slit

29‧‧‧USB connector

30‧‧‧ inner sheath

32‧‧‧Intermediate sheath

34‧‧‧ Positioning control sheath / free end / guiding member

35‧‧‧Inner tubular part

36‧‧‧Ink 匣

38‧‧‧Ink writing tip

38f‧‧‧ face

40‧‧‧ opposite end

42‧‧‧ Radial blocking members

44‧‧‧ Radial blocking tabs

46‧‧‧radial blocking shoulder/third radial guiding tab

47‧‧‧ Third radial blocking tab

48‧‧‧radial blocking groove

49‧‧ ‧ sales

50‧‧‧Ink 匣 positioning cam / inner cam

52‧‧‧Ink 匣 positioning cam path / inner cam path

54‧‧‧stylus pen tip/stylus

56‧‧‧ writing end

58‧‧‧ Included part

58f‧‧‧shell/face

58g‧‧‧radial blocking groove

58p‧‧‧ straight wall

58p'‧‧‧ sloping wall

59‧‧‧Printed circuit board

60‧‧‧Refilled end

62‧‧‧Intermediate tubular part/intermediate tubular wall/tubular part

64‧‧‧Intermediate passage

66‧‧‧ collar

67‧‧‧ Storage end

68‧‧‧ force sensor

70‧‧‧ Storage components

72‧‧‧Connecting ring

73‧‧‧Start button

74‧‧‧Longitudinal opening

76‧‧‧Shell

78‧‧‧Battery

80‧‧‧stylus positioning cam/intermediate cam

82‧‧‧elastic lugs

84‧‧‧Semi-elliptical incision

86‧‧‧Touch pen positioning cam path / stylus positioning cam path / intermediate cam path

88‧‧‧ proximal part

90‧‧‧ distal part

91‧‧‧Limited ring projections

92‧‧‧ annular protrusion

92F‧‧‧ friction protrusion

96‧‧‧circular part

96B‧‧‧stop

98‧‧‧ Straight line

98B‧‧‧stop

100‧‧‧circular part

100B‧‧‧stop

102‧‧‧ Straight line

102B‧‧‧stop

Other features and advantages of the present invention will appear from the following description with reference to the accompanying drawings in which: FIG. 1 is a perspective view of one of the writing instruments according to the invention; FIG. 2 is a decorative sheath comprising the writing instrument of FIG. A perspective view of a partial cross-sectional view of a rotating component; - Figure 3 is a perspective view of one of the inner sheaths of a writing instrument in accordance with the present invention, wherein an ink cartridge according to one of the prior art is inserted; - Figure 4 is in accordance with the present invention A perspective view of one of the inner sheath and the ink cartridge inserted into the intermediate sheath of one of the writing instruments; - Figure 5 is a perspective view of one of the intermediate sheaths of the writing instrument of Fig. 4, wherein Fig. 3 is inserted Inner sheath and ink cartridge; - Figure 6 is a view of one of the sections VI-VI indicated in Figure 1; - Figure 7 is a view similar to Figure 5, which is intended for one of the digit recognition of a graphical gesture a pen tip and a force sensor are inserted on the intermediate sheath; - Figure 8 is a view of the intermediate sheath according to the invention similar to that of Figure 4 seen from another perspective; - Figure 9 is in accordance with the present invention Inserted into one of the writing tools of the positioning control sheath of Figure 3 A perspective view of one of the inner sheath and the ink cartridge; - Figure 10 is a perspective view of one of the writing instruments according to the present invention, the writing tool having no decorative sheath, having an ink cartridge according to the prior art and intended for graphic gestures Digitally identifying one of the styluses, wherein the stylus tip is in the deployed position and the ink tip is in the retracted position; - Figure 11 is a view similar to Figure 10 seen from another perspective; - Figure 12 is similar to Figure 10. a view in which the ink pen tip is in the deployed position and the stylus tip is in the retracted position; - Figure 13 is a view similar to Figure 12 seen from another perspective.

Claims (15)

A writing instrument (10) having a torsional shape having a substantially symmetrical symmetry of a longitudinal axis, comprising: a substantially symmetrical torsion inner sheath (30) intended to receive an ink cartridge (36) carrying an ink匣 positioning cam (50); a substantially symmetrical turn intermediate sheath (32) intended to be coupled to a stylus tip (54) carrying a stylus positioning cam (80); and a positioning control sheath (34) having a substantially symmetrical twist shape, wherein an ink cartridge positioning cam path (52) is configured to cooperate with the ink cartridge positioning cam (50) and a stylus positioning cam path (86) and the touch The pen positioning cam (80) cooperates, the inner sheath (30) is inserted into the intermediate sheath (32) and the intermediate sheath (32) is inserted into the positioning control sheath (34), the ink The movement of the positioning cam (50) in the ink cartridge positioning cam path (52) controls the movement of the inner sheath (30) along the longitudinal axis, and the stylus positioning cam (80) is positioned in the stylus Travel in the cam path (86) controls the movement of the intermediate sheath (32) along the longitudinal axis. The writing instrument (10) of claim 1, wherein the ink cartridge positioning cam path (52) comprises a circumferential portion (96) circumferentially formed in the positioning control sheath (34) and relative to the positioning control sheath (34) One of the longitudinal axes is inclined by a substantially straight portion (98). The writing instrument (10) of claim 1 or 2, wherein the stylus positioning cam path (86) comprises a circumferential portion (100) circumferentially formed in the positioning control sheath (34) and relative to the positioning One of the longitudinal axes of the control sheath (34) is inclined to a substantially straight portion (102). The writing instrument (10) of claim 1 or 2, wherein the intermediate sheath (32) carries two stylus positioning cams (80), the two stylus positioning cams (80) being opposite to the longitudinal axis One of the intermediate sheaths (32) is symmetrically and symmetrically disposed on the sheath, and wherein two stylus positioning cam paths (86) are disposed in the positioning control sheath (34), the contacts The pen positioning cam path (86) defines a path having a similar profile. A writing instrument (10) according to claim 1 or 2, further comprising means for blocking rotation of the inner sheath (30) about the longitudinal axis of the writing instrument (10) relative to the intermediate sheath (32) ( 44, 46, 47, 48). A writing instrument (10) according to claim 1 or 2, further comprising a decorative sheath (11) having a substantially symmetrical twist shape in which the positioning control sheath (34) is inserted, the decorative sheath (11) Included: a stationary component (12) and a rotating component (13); and means for blocking the intermediate sheath (32) about the longitudinal axis of the writing instrument (10) relative to the decorative sheath (11) The member (58g, 12n) that rotates the stationary member (12). A writing instrument (10) according to claim 1 or 2, further comprising a decorative sheath (11) having a substantially symmetrical twist shape in which the positioning control sheath (34) is inserted, the decorative sheath (11) Included as a stationary component (12) and a rotating component (13) having an annular projection (92F) on its outer surface (13E), the annular projection (92F) being intended A plurality of friction protrusions (13F) positioned on an inner surface (13I) of one of the rotating members (13) of the decorative sheath cooperate. The writing instrument (10) of claim 7, wherein the decorative sheath (11) comprises at one end a preferably substantially conical one end piece (14), the end piece (14) intended to receive a writing nib It has a wall (14P) including an electromagnetic shield. The writing instrument (10) of claim 1 or 2, wherein the intermediate sheath (32) comprises a receiving portion (58) having at least one housing intended to receive a printed circuit board (59) (58f). The writing instrument (10) of claim 1 or 2, further comprising a force sensor (68) disposed in the intermediate sheath (32). The writing instrument (10) of claim 10, comprising a printed circuit board that permits activation of the force sensor (68) disposed on the face (38f) of the receiving portion. The writing instrument (10) of claim 1 or 2, wherein the intermediate sheath (32) includes a housing (76) intended to receive one of the force sensors (68) intended to be powered Battery (78). A writing instrument (10) according to claim 1 or 2, comprising a USB connector (29) intended to recharge a battery (78) intended to supply power to, for example, a configuration One of the force sensors (68) at one end (60) of the writing instrument. The writing instrument (10) of claim 7, wherein the decorative sheath includes a start button (22) coupled to one of the force sensors (68) power supply systems. A writing instrument (10) and an assembly of ink cartridges (36) having a writing tip (38), wherein the writing instrument (10) is a writing instrument according to any one of the preceding claims, and wherein the ink cartridge is (36) is inserted into the inner sheath (30).