FR2607074A1 - INSTRUMENT TO WRITE, IN PARTICULAR, A BALLPOINT PEN - Google Patents

Abstract

THE PENCIL-SHAPED HOUSING OF THE INSTRUMENT HAS A CROSS-SECTION IN THE SHAPE OF AN ISOLATED TRIANGLE. EACH OF THE WALLS 3 OF THE INSTRUMENT SHOWS A RECESS 7 CONTINUING INTO THE INTERIOR WITH AN OBLONG HOLE 8. EACH RECESS 7 RECEIVES A SLIDING CURSOR 9 PRESENTING A SHOULDER 10 TOWARDS THE INTERIOR THAT CROSSES HOLE 8 AND ENGAGES A RING 5 CARRIED BY THE COLORANT SUPPORT 4. THANKS TO AN AXIAL MOVEMENT EACH SLIDER 9 CAN MOVE THE COLORANT SUPPORT 4 AGAINST SPRING 6 IN THE WRITING POSITION OR RETURN TO THE INITIAL POSITION. THE WRITING INSTRUMENT CAN BE ACTUATED IMMEDIATELY, WHATEVER ITS POSITION IN THE USER'S HAND.

Description

Writing instrument, in particular, a ballpoint pen. The invention

relates to an instrument

  to write, in particular, to a ballpoint pen

  carrying a pencil-shaped housing as well

  that a mechanism designed to be operated manually

  to move the dye carrier (mine) to the writing position and to release the dye carrier to bring it back into the

  initial position. The control mechanism

  takes at least one slip element by pres-

  in the area in which the user's fingers rest in a recess formed in the wall of the pencil-shaped housing.The movement of the sliding element

  inward pressure has the effect of

  primer an axial movement in advance to the support

  dye in the direction of its writing head.

  This control mechanism is relatively expensive and complicated and, independently of these drawbacks, it is laborious for the user of the writing instrument because it requires a determined position in the hand and, moreover, for the user. writing, it requires constant pressure

  be exercised by hand on the writing instrument.

  To the extent that there are

  to secure a temporary blockage

  in the writing position, these auxiliary elements

2 2607074

  areas involve larger expenditures

  again for the control mechanism.

  Accordingly, the subject of the invention is

  to provide a control mechanism for an instrument

  write so that it is manageable without having to deploy a particular force and,

  in particular, without changing the position

that he is held in his hand.

  To achieve this object, there is provided a writing instrument, in particular, a ballpoint pen having a pencil-shaped housing, and a mechanism to be manually operated to advance the dye carrier (mine) by writing position and in order to release this dyestuff support to bring it back to its initial position, the control mechanism comprising at least, in the area of support for the fingers of the user, in a recess formed in the wall of the pencil-shaped housing, a pressure-sliding element whose radial inward movement gives rise to an axial forward movement with respect to the dye carrier in the direction of the writing head thereof, characterized in that what

  the pencil-shaped housing has a transverse section

  dirty isosceles triangle, while the mechanism

  control unit consists of three sliders which are connected, via corresponding recesses made in the wall of the housing, to the support

  dye by means of a coupling element

  very common and which, thanks to an axial movement,

  each convey the dye carrier to the

  against the action of a return spring, in the writing position or back to the position

initial.

  We will give below the description of other

  advantageous embodiments of the invention.

  The sliders are embedded in the recesses in the wall, whereas, on the housing, they are provided with a clamping shoulder with which they slide axially in corresponding oblong holes of the housing, while at the same time acting as an organ.

  coupling element for a coupling member corresponding to

  laying on the dye support, under pressure

of the return spring.

  On their longitudinal edges, the shoulder-

  clamping elements are provided with guiding strips which are placed behind the inner wall of the housing and which hold the clamping shoulders by guiding them when

their slip.

  The clamping shoulders penetrate inside the housing a calculated distance so that they are connected by their lower edge directed towards the writing head,

  on the one hand, as a coupling member for the year

  as a coupling organ and

  disposed, on the other hand, on the dye carrier.

  On their front edge away from the writing head, the sliders have a nose with which they can be placed in writing position in front of the edges of the upper outlet.

oblong holes.

  In the writing position of the medium

  dye, the sliders automatically lock

to housing.

  The slider comprises a tongue which, in the writing position of the mine, penetrates and bears in an oblong hole of the housing, to then be released by pressure and return

in the traveling position.

  On the writing side, the slider has a recess, preferably hemispherical in which, when the mine occupies the writing position, snap a shoulder diametrically opposite the wall of the housing. The writing instrument according to the invention is characterized in that from each position it

  occupies in the hand, it can be operated immediately

  diatement, while its activation is not associated with any constraint or deployment

  of force for the user's hand.

  Exemplary embodiments of the invention will be described below in more detail with reference to the accompanying drawings in which:

  Figure 1 is a projection of the

  writing instrument according to the invention; Figure 2 is a partial sectional view illustrating the writing instrument in its initial position; Figure 3 is also a partial view, but in which the writing instrument occupies its writing position; Figure 4 is a sectional view of the writing instrument, this section being taken along the line A-A of Figure 3; Figures 5 and 6 are respectively a projection and a plan view of the cursor of the writing instrument; Figure 7 is a partial sectional view of the ballpoint pen, this section taken in the area of the writing head; FIG. 8 represents the writing head illustrated in FIG. 7, in the writing position; Fig. 9 is a plan view of a slider; Fig. 10 is a partial sectional view of a writing head according to another embodiment of the slider;

  FIG. 11 shows the writing head

  ture illustrated in Figure 10, in the writing position.

  The writing instrument consists of the pencil-shaped housing 1 having the parts 2, 3 screwed together. Inside the housing 1, there is the dyestuff support or the mine 4 having, c8té writing head, a ring 5. Below the latter, the mine 4 is surrounded by a helical spring 6 serving as a spring recalling the mine 4 of its

  writing position in its initial position.

  According to the invention, the housing 1 has a triangular cross section and, in fact, a cross section in the form of an isosceles triangle. Therefore, it is subdivided into three equal outer walls (see Figure 4). In the zone on which the user's fingers rest, each wall has a recess 7 inside which is formed an oblong hole 8 forming an opening towards the interior of the housing 1. In order to actuate the support of dye 4, for each wall, there is provided a slider 9 having a configuration substantially corresponding to the shape of the recesses 7 made in the walls (see Figures 5 and 6). C8ted housing, the slider 9 is provided with a clamping shoulder 10 which engages in the oblong hole 8 and which, having a shorter length than that of the oblong hole 8, can move axially in the latter. On the longitudinal edges of the clamping shoulder 10, there are guide tongues 11 which are placed on or behind the inner wall of the housing, maintaining and thus guiding the clamping shoulder 10. In addition, the shoulder of 10 acts as a coupling member vis-à-vis the coupling member formed as a ring on the mine 4. Under the pressure of the coil spring 6, the coupling members 5, 10 are brought together, so much so that the displacement of the mine 4 in the writing position and in the initial position necessarily follows the movement of the cursor 9, and in fact, depending on the game of movement of the slider 9 in the oblong hole 8 and the recess 7 made in the wall of the housing. Vis-à-vis the coupling face of the clamping shoulder 10, on the inner face of the slider 9 and below its front face, is adapted a nose 12 which, when the slider 9 is in the position of writing and that, therefore, the mine 4 is out, is placed in front of the upper edge of the oblong hole 8, thus blocking the cursor 9 during the writing process. Slider 9 needs to

  be released from this position by moving it

pointing upwards.

  Since three sliders 9 are distributed

  on the periphery of housing 1, when

  grabs the writing instrument, it is immediately

  ready for writing without changing the posi-

  it occupies in the hand (above one of the sliders 9). Thanks to the momentary blocking of each cursor 9 being in the writing position, any deployment of any force is suppressed throughout the period of time during which

  the instrument remains in the writing position.

  According to a modified embodiment of the invention, according to FIGS. 7, 8 and 9, the sliders 13 or 14 are made in such a way that they are locked in the position

  of writing throughout the writing process.

  This feature is provided by a tab (see Figure 9) located in the slider

  13 in the zone o come to press the fingers.

  Under the influence of the pressure exerted by the finger,

  this tongue spring elastically, cte inte inte-

  When the cursor 13 reaches its end position in the oblong hole 16, the tongue 15 is placed in front of the front edge.

  of the oblong hole 16, which faces the writing head

  ture (see Figure 8) and maintains this position

  until the finger relaxes the pressure it has exerted on the tongue 15 or the slider 13, so that the tongue 15 can spring back and the slider

  13 be released again to perform his movement.

recoil.

  According to another modification of the subject of the invention, the temporary locking system of the slider 14 consists, according to FIGS.

  11 and write head side, in a hemispherical recess

  18 (see Figure 10). On the wall of the housing 1, there is a shoulder diametrically

  opposite, which, when the mine 4 occupies the posi-

  writing, snap into the recess.

  18 (see Figure 11). If the cursor 14 is

  kills a recoil movement out of this position, that is, out of the writing position,

  the shoulder 19 again disengages from the recess

  18 without the need to deploy a particular force. The blocking being thus deleted, the cursor 17 then returns in its

initial position (see Figure 10).

  Figures 7, 8, 10 and 11 each illustrate, in a simplified manner, a single slider 13 or 14. In this case, it goes without saying that, in accordance with its three gripping faces, the housing 1 having a cross section in isosceles triangle is provided, for each of these surfaces, with a slider 13 or 14, as

  shown in figure 4 about slider 9.

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Claims (8)

  1. A writing instrument, in particular a ballpoint pen having a pencil-shaped housing, and a mechanism to be operated manually to advance the dye carrier (mine) to the writing position and in order to return it to its initial position, the control mechanism comprising at least, in the zone of support for the fingers of the user, in a recess formed in the wall of the pencil-shaped housing, a pressure sliding element whose radial inward movement gives rise to an axial advance movement with respect to the dye carrier in the direction of the writing head thereof, characterized in that   the pencil-shaped housing has a transverse section   dirty in the form of an isosceles triangle, while the mechanism   control unit consists of three sliders which are connected, via corresponding recesses made in the wall of the housing, to the support   dye by means of a coupling element   very common and which, thanks to an axial movement,   each convey the dye carrier to the   against the action of a return spring, in writing position or back to the initial position.   2. Writing instrument according to the   cation 1, characterized in that the sliders (9) are embedded in the recesses (7) in the wall, whereas, housing, they are provided with a clamping shoulder (10) with which they slide axially in corresponding oblong holes (8) of the housing (1), all   at the same time acting as an 2607074   for a corresponding coupling member on the dye carrier (4) under pressure the return spring (6).   3. Writing instrument according to the   1 and 2, characterized in that on their longitudinal edges, the clamping shoulders (10O) are provided with guide strips (11) which are placed behind the inner wall of the housing and which hold the shoulders.   (10) by guiding them during their sliding ment.   4. Writing instrument according to the   1 to 3, characterized in that the shoulder-   clamping elements (10) penetrate the interior of the housing by a distance calculated so that they are connected, by their lower edge directed towards the writing head, on the one hand, as a coupling member for the ring (5) acting as a coupling member and arranged, on the other   on the dye support (4).   5. Writing instrument according to one   any of claims 1 to 4, characterized   in that, on their front edge remote from the writing head, the sliders (9) comprise a nose (12) with which they are placed in the writing position in front of the edges of the exit upper oblong holes (8).   6. Writing instrument according to one   any of claims 1 to 5, characterized   in that, in the writing position of the dye medium (4), the sliders (13, 14) are blocked   automatically vis-à-vis the housing (1).   7. Writing instrument according to the   6, characterized in that the slider (13) 2607074 comprises a tongue (15) which, in the writing position of the mine (4), penetrates and bears in an oblong hole (16) of the housing (1). ), to be released by pressing and return to the traveling position.   8. Writing instrument according to the   cation 6, characterized in that, in writing, the slider (14) has a recess (18), preferably hemispherical, in which, when the mine (4) occupies the writing position, a shoulder is engulfed diametrically opposite (19) of the housing wall.