DEVICE FOR MIXING INKS, ASSEMBLY COMPRISING THE DEVICE AND THE METHOD FOR USING SAME

Abstract

A device for filling cartridges for a writing implement, the device including at least two separate connectors, a system for metering inks and a system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge. The invention also concerns an assembly comprising a device as previously defined and a plurality of ink reservoirs, each ink reservoir being connected to a connector of the device and a method for filling a cartridge using such an assembly.

Claims

1. A device for filling cartridges in a writing implement, the device including at least two separate connectors, a metering system for metering inks and a filling system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge.

2. A device according to claim 1, wherein the metering system comprises one metering element for each ink reservoir.

3. A device according to claim 1, wherein each connector comprises an inlet shutter configured to assume an open configuration or a closed configuration of the connector.

4. A device according to claim 3, wherein the device comprises an actuator of each inlet shutter, such that the inlet shutter passes automatically from the closed configuration to the open configuration of the connector when an ink reservoir (16) is connected to the connector and the inlet shutter passes automatically from the open configuration to the closed configuration of the connector when an ink reservoir is disconnected from the connector.

5. A device according to claim 1, wherein the device comprises three connectors.

6. A device according to claim 1, wherein the filling system, comprises an outlet shutter configured to assume an open configuration or a closed configuration of the filling system.

7. A device according to claim 6, wherein the device comprises an actuator of the outlet shutter, configured so that the outlet shutter passes automatically from the closed configuration to the open configuration of the filling system when a cartridge is connected to the filling system and the outlet shutter passes automatically from the open configuration to the closed configuration of the filling system when a cartridge is disconnected from the filling system.

8. An assembly comprising a device according to claim 1 and a plurality of ink reservoirs, each ink reservoir being connected to a connector (18) of the device.

9. An assembly according to claim 8, the assembly being configured to fill an empty cartridge with a mixture of inks, the cartridge having a volume greater than or equal to 0.50 mL and less than or equal to 5 mL.

10. An assembly according to claim 8, wherein the inks are aqueous inks.

11. A method for filling a cartridge for a writing implement in an assembly according to claim 8, the method comprising the following steps: using the metering system to draw off a volume of ink from each reservoir; filling a cartridge with the volumes of ink drawn off by the metering.

12. A method according to claim 11, wherein, after filling the cartridge, the method comprises the step of fitting a cap onto the cartridge in order to seal the cartridge.

13. An assembly according to claim 9, wherein the cartridge has a volume greater than or equal to 0.75 mL and less than or equal to 3 mL.

14. A cartridge filling device for a writing implement, the device including two or more separate connectors, a metering system configured to draw off a volume of ink from a reservoir and a filling system configured to fill a cartridge with the volume of ink drawn from the reservoir by the metering system, wherein the connectors are arranged to connect the reservoir containing ink to the cartridge such that ink contained in the reservoir is able to flow through the device and reach the cartridge by passing into the metering system and the filling system.

15. A cartridge filling device according to claim 14, wherein the metering system comprises one metering element for each ink reservoir, the metering element being selected from the group consisting of a piston with an actuator, a piezoelectric injection head, a thermal injection head or a solenoid valve.

16. A cartridge filling device according to claim 14, wherein the connectors include an inlet shutter configured to adopt an open configuration or a closed configuration of the connector.

17. A cartridge filling device according to claim 14, wherein the filling system comprises a mixer configured to transmit mechanical vibration to the cartridge.

18. An assembly according to claim 8, wherein the inks comprise a dye and a solvent and have viscosities close to 1 mPA.Math.s (millipascal second).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Further features of the disclosure will emerge from the following description of embodiments, given by way of non-limiting examples, with reference to the accompanying Figures, in which:

[0043] FIG. 1 is a schematic representation of an assembly according to an example;

[0044] FIG. 2 is a simplified representation of the device in FIG. 1;

[0045] FIG. 3 is a perspective view of a cartridge and a cap according to an example.

DETAILED DESCRIPTION OF EMBODIMENTS

[0046] FIG. 1 shows an assembly of a device 10 for filling cartridges 14 for a manual writing implement, such as a ball-point pen 12, and a plurality of ink reservoirs 16. The embodiment in FIG. 1 comprises four ink reservoirs 16.

[0047] The ball-point pen 12 operates with one ink cartridge 14 that is inserted into the ball-point pen 12. The writing instrument could be a fountain pen or any other writing implement operating with an ink cartridge 14.

[0048] FIG. 2 shows in a simplified manner the device 10 in FIG. 1.

[0049] The device 10 comprises a plurality of connectors 18. Each connector 18 is configured to connect an ink reservoir 16 to the device 10. Each connector 18 comprises an inlet shutter 20 that can assume an open configuration or a closed configuration of the connector 18.

[0050] In the embodiment in FIG. 2, three connectors 18 are shown in solid lines. However, as suggested by the fourth connector 18 shown in dotted lines, the device 10 can comprise a different number of connectors 18, so long as the number of connector is greater than or equal to two.

[0051] In the embodiment in FIG. 2, each inlet shutter 20 comprises an actuator 22 of the inlet shutter 20, so that the inlet shutter 20 passes automatically from the closed configuration to the open configuration of the connector 18 when the connection of the ink reservoir 16 with the connector 18 and the inlet shutter 20 passes automatically from the open configuration to the closed configuration of the connector 18 on disconnection of the ink reservoir 16 from the connector 18.

[0052] It will be understood that the passage from the open configuration to the closed configuration of the connector, and vice versa, can be accomplished by the user.

[0053] The connectors 18 are in fluid communication with a metering system 24, which means that a fluid can flow from the connectors 18 to the metering system 24. The metering system 24 can also act directly on the connector 18 to draw a volume of ink from the ink reservoir 16.

[0054] In the embodiment in FIG. 2, the metering system 24 comprises a metering element 26 for each ink reservoir 16, which means that each connector 18 is fluidly connected to a metering element 26. The metering element 26 can for example be a piston with an actuator, a piezoelectric injection head, a thermal injection head or a solenoid valve.

[0055] The metering system 24 is configured to draw a volume of ink from each ink reservoir 16 connected to the device 10. It will be understood that the metering system 24 might not draw a volume of ink from all of the ink reservoirs 16 connected to the device 10, which means that at least one of the volumes of ink drawn off may be equal to zero.

[0056] FIG. 2 also shows one controller 28 for each metering element 26. It may also be envisaged that the metering system might comprise one controller 26 to control all of the metering elements 26 of the metering system 24.

[0057] The metering element 26 may for example be a piston with an actuator, a piezoelectric injection head, a thermal injection head or a solenoid valve.

[0058] The metering system 24 is in fluid communication with a filling system 30, which means that a fluid can flow from the metering system 24 to the filling system 30.

[0059] The filling system 30 is configured so as to fill the cartridge 14 with the volumes of ink drawn from the ink reservoirs 16 by the metering system 24. The mixing of inks is thus performed directly in the cartridge 14. It is not therefore necessary to rinse the device 10 if one wishes to fill a cartridge with a different mixture of inks.

[0060] In the embodiment in FIG. 2, the filling system 30 comprises an outlet shutter 32 that can assume an open configuration or a closed configuration of the filling system 30.

[0061] In the embodiment in FIG. 2, the device 10 comprises an actuator 34 of the outlet shutter 32, so that the outlet shutter 32 passes automatically from the closed configuration to the open configuration of the filling system 30 on connection of a cartridge 14 to the filling system 30 and the outlet shutter 32 passes automatically from the open configuration to the closed configuration of the filling system on disconnection of a cartridge 14 from the filling system 30.

[0062] It will be understood that the passage from the open configuration to the closed configuration of the filling system, and vice versa, can be accomplished by the user.

[0063] The empty cartridge 14 that is filled with a mixture of inks may have a volume greater than or equal to 0.50 mL, preferably greater than or equal to 0.75 mL and less than or equal to 5 mL, preferably less than or equal to 3 mL.

[0064] Inks can be aqueous inks, that is to say inks of which the solvent is water.

[0065] When the inlet shutters 20 and the outlet shutter 32 are in the open configuration and the ink reservoirs 16 and cartridge 14 are connected to the device 10, the ink reservoirs 16 are connected to the cartridge, which means that the ink contained in the reservoirs 16 can flow to the cartridge 14.

[0066] The method for filling the cartridge 14 using the device 10 will now be described.

[0067] In the embodiment in FIG. 1, the device 10 is shown with a cartridge 14 connected to the device 10, in particular to the filling system 30 of the device 10. Moreover, four ink reservoirs 16 are connected to the connectors 18 of the device 10. It will be understood that the number of reservoirs 16 is given by way of non-limiting example.

[0068] The metering system 24 draws a volume of ink from each ink reservoir 16 connected to the device 10. It will be understood that the metering system 24 cannot draw a volume of ink from all of the ink reservoirs 16 connected to the device 10, which means that at least one of the volumes of ink drawn may be equal to zero.

[0069] The volumes of ink drawn off are sent into the filling system 30 of the device 10 so that the cartridge 14 is filled with the mixture of inks.

[0070] The user can then disconnect the cartridge 14 from the device 10 and insert the cartridge 14 into the writing implement. The user can also fit a cap 36 onto the cartridge 14 in order to prevent the evaporation of the mixture of inks contained in the cartridge 14, as is shown in FIG. 3.

[0071] The cap 36 can be fitted to the cartridge 14 by cooperation of the internal surfaces of the cap 36 with an external surface of the cartridge 14, or vice versa.

[0072] When the user wishes to change the color of ink in the writing implement, the user can remove the cartridge 14 containing a first mixture of inks and insert a new cartridge containing a second mixture of inks. The user can retain the cartridge 14 containing the first mixture of inks and fit a cap 36 onto it in order to seal the cartridge 14 and prevent or reduce the evaporation of the first mixture of inks.

[0073] For example, by taking a device 10 comprising two connectors 18 and thus two ink reservoirs 16 of different shades or colors, by mixing the inks contained in the two ink reservoirs 16 connected to the connectors 18 in different proportions, that is to say by drawing off, thanks to the metering system 24, different volumes of the two inks, it is possible to obtain mixtures of inks having different colors.

[0074] Depending on the number of ink reservoirs and the color and saturation of each ink, it is thus possible to create different mixtures of inks by modifying the proportion of each ink drawn from each reservoir.

[0075] The user can thus quickly obtain a cartridge filled with a mixture of inks.

[0076] Although the present disclosure has been described with reference to a specific embodiment, clearly different modifications and changes can be made to these embodiments without departing from the general scope as defined by the claims. Furthermore, individual characteristics of the different embodiments described can be combined in additional embodiments. Consequently, the description and the drawings must be considered in an illustrative rather than a restrictive sense.