FLUID DISPENSING DEVICE WITH COUPLING TO POWER-DRIVEN TURNING TOOLS AND TURNING TOOL COMPRISING THE SAME

Abstract

The present invention refers to a device that is coupled to motorised tools whose consumable or implement rotates, preferably tools of the portable or swivelling type, supplying fluids either to the surface on which the consumable or implement acts, or to the consumable or implement itself so that it performs its function correctly, having a reservoir in which pressure is generated for its use and the device and the tool or consumable that is used being independent and interchangeable, and having conventional means of attachment that allow it to be used in conventional tools without having to adapt the tool, the consumable or implement.

Claims

1. Fluid dispensing device with coupling to motorised turning tools, which have a reservoir or cavity for storing the fluid to be dispensed, as well as a dispensing valve for the same, characterised in that the device (10, 300) comprises at least: a coupling system (11,311) for coupling the dispensing device (10, 300) to the type of tool (100, 400) to which it is coupled; a coupling system (12, 312) for coupling a consumable or implement (200, 201) to the dispensing device (10, 300); a reservoir (15, 315) with a pressure or vacuum dispensing system; and a dispensing valve (14) for applying the fluid to the consumable or implement (200, 201) and/or a body to be treated with the tool; wherein the dispensing device (10, 300) is independent of the consumable or implement (200, 201), the consumable or implement (200, 201) being coupled to the dispensing device (10, 300), allowing the consumable or implement (200, 201) to be changed without decoupling the dispensing device (10, 300) from the tool (100, 400); wherein the reservoir is formed by a sub-reservoir (15) housed inside the space created by the walls of the housing (13) of the device itself (10, 300).

2. Fluid dispensing device with coupling to motorised turning tools according to claim 1, wherein the dispensing device (10) comprises a housing (13) inside which is located the reservoir (15,315) containing the fluid to be dispensed; wherein the housing (13) has a first coupling piece (11) that allows the coupling of said device (10) to the tool (100), which provides the rotation to the housing to perform the function to the consumable or implement (200) that is coupled to it; and a second coupling piece (12) which allows the coupling of said consumable or implement (200) to the dispensing device (10) itself, transmitting the fluid from the reservoir (15,315) to said consumable or implement (200) through the dispensing valve (14) as well as the rotation transmitted from the tool (100) to the housing (13).

3. Fluid dispensing device with coupling to motorised turning tools, according to claim 2, wherein the housing (13) at its end opposite to the tool (100), has a coupling part (12) formed by a textile or similar fixing layer where the consumable or implement (200) is fixed, bringing the dispensing valve (14) in contact with the consumable or implement (200) itself during the normal use for which it is intended.

4. Fluid dispensing device with coupling to motorised turning tools according to claim 1, wherein the coupling system (11, 311) of the dispensing device (10, 300) to the type of tool (100, 400) being coupled is conventional, being the same as that used by the consumable or implement (200, 201) for conventional coupling to the tool (100, 400).

5. Fluid dispensing device with coupling to motorised turning tools according to claim 1, wherein the coupling system (12, 312) of the consumable or implement (200, 201) to the dispensing device (10, 300) is conventional, being the same as the one used by the tool (100, 400) to couple the consumable or implement (200, 201) thereto in a conventional manner.

6. Fluid dispensing device with coupling to motorised turning tools according to claim 1, wherein the reservoir (315) is formed by the space created by the walls of the housing (13) of the device itself (10, 300).

7. (canceled)

8. Fluid dispensing device with coupling to motorised turning tools according to claim 6, wherein pressure is generated on the fluid in the reservoir by the displacement action of a piston (20), for continuous dispensing of the fluid.

9. Fluid dispensing device with coupling to motorised turning tools according to claim 6, wherein the housing (13) has a refilling system (21) for the fluid to be dispensed, watertight during operation of the tool (100, 400).

10. Fluid dispensing device with coupling to motorised turning tools, according to claim 1, wherein the housing (13) has a system for opening and accessing its interior space, in order to replace the sub-reservoir (15).

11. Fluid dispensing device with coupling to motorised turning tools according to claim 8, wherein the pressure generated for displacing the piston (20) against the fluid in the reservoir (15, 315) is generated by gas pressure or vacuum.

12. Fluid dispensing device with coupling to motorised turning tools according to claim 1, wherein the reservoir (15) itself has an elastic property with pressure for its contraction and continuous dispensing of the fluid.

13. Fluid dispensing device with coupling to motorised turning tools according to claim 1, wherein the dispensing valve (14) is of the spring-loaded push button valve type which opens by pressure against the push button/outlet of the nozzle (17, 317) and closes in the absence of pressure.

14. Fluid dispensing device with coupling to motorised turning tools according to claim 1, wherein the dispensing valve has a user-operated opening control system.

15. Fluid dispensing device with coupling to motorised turning tools according to claim 14, wherein the dispensing valve is of the type by closed by means of an electromagnet, with a wireless push button that regulates the closing/opening action of the electromagnet.

16. Motorised turning tool to which is coupled at least one consumable or implement for treating or acting on a body or surface, characterised in that the tool (100, 400) is fitted with a dispensing device (10, 300) as referred to claim 1.

17. Motorised turning tool according to claim 16, wherein the tool (100) is a polishing tool with a dispensing device (10) which is positioned as an extension of the tool (100) as a housing (13) with a pressurised liquid reservoir, the consumable or implement (200) being independently and interchangeably coupled to the dispensing device, and wherein the consumable or implement (200) is a polishing sponge.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0053] For the better understanding of the description made herein, a set of drawings has been provided wherein, schematically and solely by way of a non-limiting example, a practical case of an embodiment is portrayed.

[0054] FIG. 1 is a sectional view of a dispensing device with a bellows sub-reservoir.

[0055] FIG. 2 is a partial sectional view of a dispensing device, as shown in FIG. 1, attached to the tool and with a polishing consumable or implement attached to the device.

[0056] FIG. 3 is a sectional view of a dispensing device with a reservoir formed by the walls of the device itself and with a spring-loaded plunger as a pressure system.

[0057] FIG. 4 is a perspective view of a dispensing device attached to the tool and with a drill bit attached to the device.

DESCRIPTION OF A PREFERRED EMBODIMENT

[0058] Various embodiments of the dispensing device, as well as of the tool containing the dispensing device, of the present invention are described below with reference to the figures indicated above.

[0059] According to the present embodiment, and as can be seen in FIGS. 1 and 2, the dispensing device (10) is applied to a polishing tool, such as a motorised turning tool (100). Polishing is to be understood broadly as any action related to the treatment and/or regeneration of varnishes applied to the products to be treated, which follows the same principle of actuation and use of the tool (100).

[0060] The dispensing device (10) consists of a housing (13) having a first coupling part (11) allowing the coupling of the dispensing device (10) to the tool (100) and a second coupling part (12) allowing the coupling of the consumable or implement (200) to the dispensing device (10) itself. The dispensing device (10) has a pressure valve (14), shown schematically, which opens when a certain pressure is exerted on the nozzle (17) of said valve (14).

[0061] Inside the housing (13) there is a bellows sub-reservoir (15) containing the fluid to be dispensed, in this case polishing fluid. The housing (13) can be opened and closed safely and tightly, so that this sub-reservoir (15) can be refilled or replaced when the fluid has run out. The closing/opening means are conventional, e.g., by means of a threaded lid, clip connection or any other press-fit system.

[0062] This bellows sub-reservoir (15) has a tendency to contract, so that the liquid inside it is subjected to constant pressure, meaning that the valve (14) always has liquid pressure to act in any position, even when there is no gravity to carry the liquid to the valve (14).

[0063] In the present embodiment, the coupling of the dispensing device (10) to the tool (100) is made by conventional means of coupling in this type of polishing plate tool, wherein a locking nipple or shank (16) is firmly attached to the head/chuck (101) of the tool (100).

[0064] In turn, the dispensing device (10), which in this embodiment acts as an extension of the tool (100) that independently contains the liquid reservoir to be dispensed, to which the polishing foams are interchangeably attached, has a coupling part (12) at its end opposite to the attachment to the tool (100), consisting of a “Velcro” type textile fastening layer for attaching the consumable or implement (200), in this embodiment being a consumable such as polishing foam.

[0065] In its operation, as can be seen in FIGS. 3 and 4, the dispensing device (10) is secured to the tool (100) that provides it with the rotation to perform the function, and receives the coupling of its consumable or implement (200), the polishing sponge. The sub-reservoir (15), when subjected to a compression force, keeps the liquid inside it under pressure against the valve (14).

[0066] In alternative embodiments, as can be seen in FIG. 3, the walls of the housing (13) act as the reservoir (315) of the fluid having a plunger (20) displaced by an element, such as in this case a spring (18), which may be by the effect of a pressurised gas or vacuum, for example. In this case there is a refilling valve (21) that allows fluid to be introduced back into the housing (11) that forms the reservoir, which moves the plunger to a position that presses against the liquid.

[0067] Also, alternatively, the sub-reservoir, instead of a bellows, may be of another type, provided it has a compressive force to keep the liquid under pressure.

[0068] The consumable or implement (200), in this case a consumable in the form of a polishing sponge, when pressed against the surface to be treated, exerts pressure on the nozzle (17), which opens to dispense the liquid from inside the sub-reservoir (15) into the polishing sponge, as long as the operating pressure is maintained. This dispensing is carried out even in positions where gravity does not take the liquid to the sponge, as the pressure exerted by the sub-reservoir (15) itself allows the polishing liquid to exit through the nozzle (17) when the valve (14) opens.

[0069] Alternatively, the sponge may have an opening so that the dispensed liquid is deposited directly onto the surface to be treated, rather than being applied to the sponge. Pressure is applied directly from the surface to be treated onto the valve nozzle, as this opening in the sponge is coaxial with respect to the axis of rotation and the nozzle.

[0070] With respect to the valves, alternative embodiments may be user-operated valves, employing user-controlled valve-opening systems, e.g., of the electromagnet closing type, with a wireless push-button governing the closing/opening action of the electromagnet.

[0071] Alternatively, and by way of example of the use of drilling or milling type turning tools, the liquid dispensing device (300) is coupled to a drilling tool (400).

[0072] In this alternative embodiment, the metering device (300) is attached by means of a conventional connecting shank (311) to the drilling tool (400) and fixed in its conventional chuck.

[0073] In order to fix the drill bit (201), the dispensing device (300) has its own fixing chuck (312) for said drill bit (201). This fixing chuck (312) of the drill bit (201) exerts, directly or indirectly, pressure on the pressure opening nozzle of the metering device (300) so that when drilling and exerting pressure, this pressure is transferred to the nozzle (317) of the valve of the metering device (300) letting out, in this case, lubricating/cooling liquid to effectively carry out the drilling operation.

[0074] Although reference has been made to a specific embodiment of the invention, it will be obvious to a person skilled in the art that the fluid dispensing device with coupling to motorised turning tools, as well as the tool containing it, described above are susceptible to numerous variations and modifications, and that all the details mentioned can be substituted by other technically equivalent ones, without departing from the scope of protection defined by the accompanying claims.