Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
  • B43K23/08—Protecting means, e.g. caps
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K11/00—Filling devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43K—IMPLEMENTS FOR WRITING OR DRAWING
  • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
  • B43K5/02—Ink reservoirs

Definitions

• the present invention relates to a pen comprising a nib, a tubular body and an ink reservoir.
• the most remarkable improvement brought to the writing instruments was the invention of the fountain pen, comprising a hollow handle or body of pen provided with a reservoir ink and a pen supply system.
• Various other improvements were then devised to improve the structure of the pen and the delivery system of
• the fountain pen is also an aesthetic object and is the subject of various aesthetic research relating to its two essential constituent elements which are the body and the nib, as well as the cap.
• the present invention is the result of an entirely different approach in the search for an effect new aesthetic, and is based on the idea of modifying the very structure of the constituent elements of a fountain pen to obtain a new form that is clearly different from the shape of a classic fountain pen.
• the present invention has for its object a fountain pen which is distinguished from a conventional fountain pen by a particular structure of its body having a significant impact on the aesthetic level.
• a fountain pen of the type described above having a double-walled tubular body and an ink reservoir arranged between the outer wall and the inner wall of the pen body, the inner wall of the body of the pen being fixed relative to the outer wall and visible from outside the pen.
• the body of the pen comprises two coaxial tubular parts, an external tubular part forming the external wall of the body of the pen, an internal tubular part forming the internal wall of the body of the pen, the ink tank being arranged between the inner face of the outer tubular part and the outer face of the inner tubular part.
• the external face of the internal tubular part has a region of smaller diameter forming with the internal face of the external tubular part the ink reservoir, and comprises on a region of larger diameter at least one groove to bring ink to the pen.
• the external face of the internal tubular part comprises two longitudinal lateral channels opening into the reservoir, a longitudinal central channel arranged between the two lateral channels and a plurality of transverse grooves connecting the central channel to the two lateral channels, the furrow for the ink taking its source in the central channel.
• the internal tubular part comprises a first tubular part on which are fitted two tubular parts forming spacers for assembling the first tubular part and the external tubular part, the ink tank extending longitudinally between the edges of the two spacers.
• the external tubular part is in a first type of metal or alloy and the tubular parts forming spacers are in a second type of metal or alloy of less hardness than that of the first type of metal or alloy.
• the feather is formed by a tapered end of the external tubular part, comprising a longitudinal slot • showing two feather tips.
• the furrow for supplying the ink ends under the slot separating the pen tips has the form of a tube open at its two ends, the inner wall of which is visible from the two ends of the pen.
• the body of the pen comprises a vent opening at the rear end of the body of the pen, to regulate the pressure in the reservoir and allow the reservoir to be filled by suction.
• the pen comprises a cap which is integral with a case intended to receive the body of the pen.
• the cap is rotatably mounted at one end of the case.
• the present invention also relates to a device for writing, comprising a pen according to the invention and a device for filling the reservoir. ink from the pen including a receiving block from the rear end of the pen.
• the receiving block comprises: a receiving cavity of the rear end of the pen, comprising at least one seal cooperating with the external wall of the pen; a protrusion arranged in the receiving cavity, s' engaging in the pen and comprising at least one seal cooperating with the inner wall of the pen; and an air suction means comprising a suction port opening into the receiving cavity.
• FIGS. 1A, 1B, 1C are top, bottom and rear profile views of an embodiment of a fountain pen according to the invention
• FIGS. 2A and 2B are top and bottom views of an external tubular part forming the envelope of the pen shown in FIGS. 1A and 1B,
• FIGS. 3A, 3B are views from above and from below of an internal tubular part present in the pen shown in FIGS. 1A and 1B,
• FIG. 4 represents an embodiment of the nib of a pen according to the invention
• FIGS. 1A, 1B, 1C respectively represent a top view, a bottom view and a rear profile view of an exemplary embodiment of a pen 1 according to the invention.
• the pen 1 has the appearance of a tube having its two ends bevelled at a determined angle, here of the order of 12 ° relative to its longitudinal axis.
• the latter comprises an external tube 10, which forms the external wall or envelope of the pen, and an internal tubular part 20 coaxial with the tube 10, which forms the internal wall of the tube.
• the internal part 20 itself seems constituted by two distinct tubular layers 21, 22, the layer 22 surrounding the layer 21 and having a greater thickness than the layer 21. These layers correspond to parts 21, 22-1 and 22- 2 mentioned below in relation to the description of an example embodiment of the internal part 20.
• the end of the outer tube 10 becomes thinner due to its bevel cut and forms a feather 11.
• the thinned end of the tube 10 has a longitudinal slot 12 allowing the flow of the ink to the end of the pen 11 and showing two nibs 13, 14.
• the rear end of the pen is bevelled in the same way as the front end for aesthetic reasons and for the symmetry of the together, but could also, in an alternative embodiment, have a cross section profile.
• the body of the pen actually comprises an ink reservoir concealed between its inner wall and its outer wall, as will be better understood by referring to FIGS. 2A, 2B, and 3A, 3B.
• FIGS. 2A, 2B represent the external tube 10 before it is assembled on the internal tubular part 20, respectively by a top view and a bottom view.
• the tube 10 is for example made of stainless steel and is force-fitted onto the tubular part 20. '
• the internal tubular part 20 comprises a central tube 21 of the same length as the external tube 10 and two tube portions 22-1, 22-2 fitted on the two ends of the central tube 21.
• the tube portions 22-1, 22-2 have an outer diameter substantially equal to the inner diameter of the outer tube 10 and form spacers for assembling the outer tube 10 on the central tube 21.
• the central tube 21 is for example made of steel stainless and the spacers 22-1, 22-2 are for example of a metal or an alloy of less hardness than steel, for example brass.
• the spacers 22-1, 22-2 each extend substantially over a third of the length of the central tube 21 and reveal a region of length L where the outer face of the internal tubular part 20 has a smaller diameter, here the outer diameter of the tube 21.
• this region of smaller diameter forms an ink reservoir 24 which is delimited in the radial direction by the outer face of the central tube 21 and the inner face of the outer tube 10 (Fig. 2A), and is delimited in the longitudinal direction by the edges of the spacers 22-1, 22-2 which lie opposite.
• the internal tubular part 20 also comprises an ink distribution system produced here by etching channels and grooves on the surface of the spacer 22-2.
• an ink distribution system produced here by etching channels and grooves on the surface of the spacer 22-2.
• FIG. 3A we can thus see on the top of the spacer 22-2:
• a longitudinal central channel 232 arranged between the two lateral channels 230, 231, - a plurality of transverse grooves 233 connecting the central channel 232 to the lateral channels 230, 231, here thirty-two grooves engraved on each side of the channel 232, and - a central groove 234 taking its source in the central channel 232, ensuring the flow of ink to the pen 11 and ending at the end of the spacer 22-2, under the slot 13 separating the two nozzles 13, 14 of the pen 11 (which appears by superimposing Figures 2A and 3A).
• the internal tubular part 20 also comprises a channel 220 forming a vent, to maintain the reservoir 24 at atmospheric pressure and allow the flow of ink in the direction of the pen.
• the channel 220 is here etched on the surface of the spacer 22-1 and opens at the rear end of the pen. As will be seen below, this arrangement of the channel 220 makes it possible to fill the reservoir 24 by means of a vacuum device which is fixed on the rear end of the pen.
• the external tube 10 has an internal diameter of the order of 9.45 mm and an external diameter of the order of 10 mm.
• the spacers have an inside diameter of around 8.00 mm and an outside diameter of around 9.45 mm.
• the central tube 21 has an inside diameter of around 7.6 mm and an outside diameter of around 8 mm.
• the length of the tubes 10, 21 is of the order of 185 mm, and that of the spacers 22-1, 22-2 of the order of 65 mm.
• the reservoir 24 thus extends over a length of 55 mm and has a volume of the order of 0.9 cm 3 .
• the channels 230, 231, 232 are formed over a length of the order of 37.5 mm and a depth " of the order of 0.3 mm, the etching angle of the channels 230, 231 being of the order 44 ° and the engraving angle of channel 232 on the order of 26 °.
• the width of the groove 232 is on the order of 0.1 mm and its depth on the order of 0.3 mm.
• grooves 233 is 1 order of 0.1 mm and their depth is 1 order of 0.6 mm.
• the width of the groove 220 is of the order of 0.025 mm and its depth of the order of 0.4
• FIG. 4 illustrates an embodiment in which the pen 11 has a narrowing zone obtained by machining the lateral edges of the nozzles 13, 14, the end of the pen 11 having a substantially constant width.
• the end of the spacer 22-2, which serves to support the groove 234, is not machined like the pen 11 and retains the shape imparted by the beveling.
• the present invention is of course susceptible of various other variants and embodiments, in particular as regards the dimensions and structure of the parts described above and the materials used to make them.
• the interior or exterior wall of the body of a pen according to the invention does not necessarily have a cylindrical profile and can have an oval or substantially square profile depending on the desired aesthetic effect.
• the internal part 20 is produced in a single block by injection of a plastic material into a mold.
• the pen 'pen of the invention has two main features that can be implemented independently of each one another.
• One characteristic consists in providing a feather formed by an extension of the material forming the envelope of the body of the pen, here the outer tube 10.
• the other characteristic consists in providing a tubular pen body having a reservoir of ink housed between its outer wall and its inner wall. So a classic feather could be attached to a pen body according to the invention, and a conventional pen body could be coated with a metallic envelope extending in the form of a feather.
• the combination of these two characteristics constitutes however the preferred embodiment of the invention because it makes it possible to provide a pen body open at its two ends, the nib not obstructing the front end of the pen and forming a harmonious extension of the body of the pen.
• FIGS. 5A and 5B Such a device 30 for filling the ink tank is shown in section in FIGS. 5A and 5B.
• the pen 1 is shown respectively before and after filling of its reservoir, and has its rear end engaged in the device 30 and its front end dipped in an inkwell.
• the assembly formed by the pen 1 and the filling device 30 constitutes a device for writing.
• the filling device 30 comprises a block 31 in which is formed a cavity 32 for receiving the rear end of the pen 1.
• the cavity 32 comprises a cylindrical protrusion 34 which fits into the hollow part of the rear end of the pen .
• the cavity 32 is sealed thanks to three annular seals 33 arranged on the inner wall of the cavity 32, at the mouth of the cavity 32, which cooperate with the outer wall of the pen, and thanks to three annular seals 35 arranged around the 'cylindrical projection 34, which cooperate with the inner wall of the pen.
• the receiving cavity 32 is placed under vacuum by means of a conventional pumping system, integrated here in the block 31, comprising a piston 36 slidably mounted in a cylindrical cavity 37 thanks to a screw and knurled system 38.
• the cavity 37 communicates with the receiving cavity 32 by means of a suction orifice 39.
• the vacuum in the cavity 32 communicates with the reservoir d ink 24 via the channel 220 forming a vent, described above, which opens into the cavity 32.
• ink is thus sucked into the reservoir 24 via the pen , furrow and channels connecting the feather to the reservoir 24.
• the idea of the present invention is to provide a cap integral with a case intended to receive the body of the pen.
• the rear end of the pen body has the shape of a hollow tube in the preferred embodiment of the present invention. It could thus inadvertently receive small objects - which could become blocked inside the body. It could also get dirt, for example if the pen fell on earthy or dusty ground or fell into sand. It is therefore advantageous, but by no means imperative, to combine with the means for protecting the pen means for protecting the entire pen. Thus, the user is naturally led to protect the entire pen when he is not using it.
• FIGS. 6A and 6B represent an exemplary embodiment of a case / cap according to the invention, comprising a case 40 of narrow and longitudinal shape adapted to the shape of the pen, for storing and transporting the pen, and a part 41 receiving pen 11, integral with the case 40, forming a cap.
• the receiving part 41 comprises a recess to receive the end of the pen 11, and is rotatably mounted at one of the ends of the case 40.
• the receiving part 41 has for example the shape of a ball mounted around 'an axis (not shown) passing through its center, and is held in the pen reception position by means of a ball 42 cooperating with a notch with rounded edges, the ball being pushed into the notch by a spring 43.
• the ball 42 and the spring 43 are arranged in a recess made in the case 40 and the notch is arranged on the surface of the receiving part 41.
• the ball 42 and the spring can also be arranged in a housing formed in the receiving part 41, the ball 42 then cooperating with a notch formed on the surface of the case 40.
• the pen 11 is firstly engaged in the receiving part 41 while keeping the pen substantially straight.
• the pen is then tilted in the case 40 by a movement of rotation of the part 41 around its axis.
• a cover 44 is then folded over the case.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Pens And Brushes (AREA)
• Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
• Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
• Eye Examination Apparatus (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8852350

Family Applications (1)

Country Status (6)

Cited By (1)

Citations (4)

• 2000
  • 2000-07-11 FR FR0009043A patent/FR2811611A1/fr not_active Withdrawn
• 2001
  • 2001-07-11 AT AT01965527T patent/ATE261358T1/de not_active IP Right Cessation
  • 2001-07-11 AU AU2001286161A patent/AU2001286161A1/en not_active Abandoned
  • 2001-07-11 WO PCT/IB2001/001697 patent/WO2002004231A1/fr active IP Right Grant
  • 2001-07-11 EP EP01965527A patent/EP1299249B1/de not_active Expired - Lifetime
  • 2001-07-11 DE DE60102299T patent/DE60102299D1/de not_active Expired - Lifetime

Patent Citations (4)

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