FR3062378A1 - PAINT CONTAINER COMPRISING AN OPTIMIZED SHUTTER - Google Patents

Abstract

The invention relates to a disposable container (1) containing at least one liquid component of the paint, varnish or cleaning product type for spraying and having a bottom (3), at least one peripheral side wall (2) extending to from the bottom (3) to an upper peripheral edge (2a) forming an open connection end spaced and facing said bottom (3), said connection end being closed by a closure member, characterized in that shutter member is a sealing film (5) bonded and / or heat sealed to the upper peripheral edge (2a).

Description

@ Holder (s): CAMILLERI MICHEL, GUARINO JOSEPH.

O Extension request (s):

® Agent (s): LAURENT & CHARRAS.

® PAINT CONTAINER COMPRISING AN OPTIMIZED SHUTTER.

FR 3,062,378 - A1 (57) The invention relates to a disposable container (1) containing at least one liquid component of the paint, varnish or cleaning product type intended for spraying and having a bottom (3), at least one wall lateral (2) peripheral extending from the bottom (3) to an upper peripheral edge (2a) forming a spaced open connection end and facing said bottom (3), said connection end being closed by a member shutter, characterized in that the shutter member is a sealing film (5) bonded and / or heat-sealed on the upper peripheral edge (2a).

PAINT CONTAINER HAVING AN OPTIMIZED SHUTTER

The present invention relates to the general technical field of containers containing liquid products to be sprayed and of systems, apparatus or devices for spraying. The containers are generally used for packaging, preparation and work with a paint or spray gun, storage, application and possible preservation of a product from a mixture of at least two components .

More particularly, the invention relates to a kit or a disposable kit containing separately the two or more components to be mixed before its use after its assembly by means of an adapter part on a paint spray gun.

In the field of two-component products and more generally of multi-component products to be painted, sprayed or sprayed, for example paints, primers, varnishes and the like, each of the two or more components of the final product must be packaged apart. These components are mixed at the last moment, just before being used, because after a certain time it is no longer possible to spray or spray them, for example because they solidify, only they harden or become pasty. In addition, these components are generally sensitive to air and / or light and must be packaged separately in airtight and / or opaque containers.

When a two-component or multi-component product must be sprayed, the operator must generally carry out the prior mixing of the components of the product before transferring this mixture into a container suitable for his spraying tool, each of the components of the product is then initially individually packaged in a separate container.

This preparation of two-component or multi-component products to be sprayed has many disadvantages, among which we may notably mention:

• bulky and expensive commercial packaging for the two-component product because each of the components must be individually packaged in a separate container;

• risk of spillage and loss of components or product during the preparation of the product to be sprayed due to the multiple transfer operations from one container to another;

• risks of incorrect dosing on the part of the operator during the preparation of the product to be sprayed, which may affect the effectiveness of the two-component product obtained;

• bulky storage of partially emptied containers for each of the components after mixing, • air deterioration of the remaining components stored in the partially emptied containers;

• preparation time required when mixing components while the increasing cost of labor leads employers to find solutions to increase the speed of interventions.

In the field of painting or spraying using a tool of the gravity, suction or similar type, there are few single-use two-component packages.

In order to make the painting or spraying work easier and faster but also more economical in products and equipment, the present invention aims to provide a new packaging and working container serving as a disposable cup to be mounted on a tool. spray.

Another object of the invention is to facilitate the extraction of an internal tube from the container, containing an additional component.

The objects assigned to the invention are achieved using a disposable container, containing at least one liquid component of the paint, varnish or cleaning product intended for spraying type and having a bottom, at least one peripheral side wall s' extending from the bottom to an upper peripheral edge forming a spaced open connection end and facing said bottom, said connection end being closed by a closure member, characterized in that the closure member is a sealing film glued and / or heat-sealed on the upper peripheral edge.

For example, a cleaning product can be used to clean the brakes of a vehicle such as a truck, tractor or trailer.

According to an exemplary embodiment according to the invention, the sealing film has, by virtue of its shape, at least one gripping tab projecting beyond the upper peripheral edge of the side wall. It can also be provided that the sealing film has two, three or four gripping tabs.

According to an exemplary embodiment according to the invention, the sealing film comprises an aluminum sheet covered on one side with a plastic material suitable for heat welding with the material of which said container is made.

According to an exemplary embodiment according to the invention, the container internally comprises at least one rigid and removable wall engaged with a lower end in a groove formed in the bottom and making it possible to produce at least one watertight compartment intended to store and insulate the minus an additional component.

According to an exemplary embodiment according to the invention, the rigid and removable wall delimits an internal tube.

According to an exemplary embodiment according to the invention, the upper end of the rigid and removable wall has a flat whose total surface is greater than the total surface of the upper peripheral edge, the flat on which the sealing film adheres is extending substantially at the same level as the upper peripheral edge on which said sealing film also adheres.

The sealing film can advantageously be torn off or torn.

According to an exemplary embodiment according to the invention, the bottom is provided with a closable vent device, which comprises an opening forming an air passage, formed in the bottom.

According to an exemplary embodiment, the vent device comprises a rotary valve mounted on the external face of the bottom in the extension of the opening so as to close and release the air passage.

The container according to the invention is advantageously pre-filled with at least one spraying product.

According to an exemplary embodiment according to the invention, the container comprises stiffening reinforcements integral with the bottom and with the part delimiting the groove, said part extending projecting from an external face of the bottom.

According to an exemplary embodiment according to the invention, the side wall has, in the vicinity of its connection end, on its external periphery, ribs or thread segments.

The objects assigned to the invention are also achieved by means of a liquid spraying apparatus comprising a spray gun fed by gravity and a reservoir comprising a disposable container as presented above, a removable cover, said cover. being arranged so as to close the open end of the container, characterized in that the bottom, also called base, of the container is provided with a closable opening, also called an air hole, the container being made of a plastic material translucent chosen so that the contents of the container are visible and have markings on the side wall (s) to allow the quantity of the contents to be determined, the cover being provided with an orifice, also called an outlet, for transferring liquid from the tank to an inlet of the spray gun and a filter being arranged so as to filter the liquid sucked hor s from the tank through the opening in the cover, the filter being located in the cover.

The objects assigned to the invention are also achieved using a liquid spraying device comprising a spray gun and a reservoir for a liquid to be sprayed, the reservoir comprising a container as presented above and a cover. removable which is arranged to close the open end of the container, also called opening in the container, the cover having an orifice, also called outlet, which can be connected to the spray gun so as to allow the suction of the liquid out of the tank in use.

According to an exemplary embodiment of the spraying device according to the invention, the spray gun comprises an integrated connection means which is arranged to make a non-screwed engagement with a connector means cooperating on the cover and by means of which the reservoir is detachably attached to the spray gun.

According to an exemplary embodiment, the spray gun comprises an integrated socket, arranged so as to engage without threading with the connector means, which comprise a tubular coupling member which is adjusted by pushing in the socket, the member d tubular coupling having a first portion which provides a fluid tight connection between the coupling member and the socket and a second portion which can cooperate with the spray gun outside the socket to prevent rotation of the coupling member in said socket without limiting the relative axial movement between the coupling member and said socket for engaging / disengaging the coupling member.

By the term "not screwed" is meant all forms of separable connections between two connectors which can be engaged / disengaged mutually by an axial movement and / or by a relative angular movement requiring less than a full turn around a connection axis.

The objects assigned to the invention are also achieved by means of a process for preparing and using a liquid spraying system, characterized in that it consists in:

- a) use a container as presented above,

b) separating the sealing film from the container containing at least one liquid component,

- c) mount the cover on the container to form a spray tank,

- d) connect the tank to a spray gun,

- e) spraying the liquid component.

According to an exemplary implementation, the method according to the invention consists, after step a) and before step b), of removing from the container an internal tube containing another component by pulling on the sealing film which still adheres to said inner tube and mix the components.

The bottom inside the container according to the invention is flat and devoid of elements in relief likely to hinder a mixing operation using a stirring rod.

The container according to the invention also includes a remarkably simple, reliable and economical closable vent device.

The container according to the invention also has the advantage of significantly increasing its tightness through the use of a sealing film as a sealing member.

The use of a sealing film also saves material to seal the container according to the invention.

In addition, in the case of a two-component container, the sealing film makes it possible, by its stronger adhesion to the central tube, to exert a traction on the central tube and to remove it more easily before mixing. of components.

Other characteristics and advantages of the invention will appear in the following description, given by way of nonlimiting example and accompanied by the drawings in which:

FIG. 1 is a perspective illustration of an embodiment of a container according to the invention,

FIG. 2 is an illustration of the container of FIG. 1 in which the sealing film has been removed,

FIG. 3 is an illustration in top view of a sealing film closing the opening of the container according to the invention in top view,

FIG. 4 is an illustration from above of a rotary valve mounted on the container according to the invention,

FIG. 5 is a perspective view of the valve illustrated in FIG. 4,

FIG. 6 is a sectional view of an exemplary embodiment of a container according to the invention for a multi-component application with the rotary valve in the open position,

FIG. 7 illustrates the container according to him in section of FIG. 6 according to another cutting plane,

FIG. 8 is an illustration of the container according to the invention of FIGS. 6 and 7 provided with a sealing film and showing the rotary valve in the closed position,

FIG. 9 is an illustration of the container of FIG. 8 during the separation of the sealing film,

FIG. 10 is another example of the use of the container according to the invention, more specifically in a mono3062378 component use,

- Figure 11 illustrates the use of the container according to the invention during the extraction of a central tube insulating an additional component,

FIG. 12 illustrates a detail of FIG. 11,

FIG. 13 illustrates an exemplary embodiment of a spraying apparatus on which the container according to the invention is mounted, and

- Figure 14 illustrates an embodiment of a container according to the invention, e view from below and in perspective.

detailed description

Figure 1 illustrates in a perspective view an embodiment of a container 1 according to the invention. This generally substantially cylindrical or frustoconical container has a peripheral side wall 2 extending from a bottom 3 to an open end 4. The latter can be seen more precisely in FIG. 2.

FIG. 2 shows for example an embodiment of the container 1 provided with an internal compartment delimited by an internal tube 1a. The opening end 4, also called connection end, is advantageously closed by a sealing film 5 when the container 1 is filled with one or more products.

The sealing film 5 is shown, not attached to the container 1, in Figure 3 in top view. The sealing film 5 has one or more gripping tabs 5a accessible at its periphery so as to allow better gripping when it is detached from the container 1.

The container 1 is also provided, in a centered or off-centered manner, on an external face 3a of the bottom 3 with a closable vent device 6. The latter is shown respectively closed and open, for example in FIGS. 1 and 3.

The closable vent device 6 comprises an opening 7 formed in the bottom 3 so as to form an air passage. This opening 7 is illustrated in particular in FIGS. 6, 8, 9 and 10.

The closable vent device 6 also includes a rotary valve 8 illustrated in more detail in FIGS. 4 and 5. The rotary valve 8 is mounted on an external face 3a of the bottom 3 and this in the extension of the opening 7. It will be possible to see more particularly Figures 6, 8, 9 and 10.

The rotary valve 8 has an axis of rotation 8a extending in a plane parallel to the external face 3a and mounted in tight fit in jaws 9. The jaws 9 are advantageously integral and projecting from the external face 3a.

The rotary valve 8 advantageously comprises an actuating lever 8b for moving said rotary valve 8 between two stop positions constituting limit switches. These two stop positions correspond respectively to a release and a closure of the opening 7.

The rotary valve 8 also has a central cylindrical part 8c. The latter is in contact with the external face 3a of the bottom 3 and ends longitudinally and axially on each side by a coaxial end of the smallest diameter to constitute the axis of rotation 8a engaged in a corresponding jaw 9.

The cylindrical part 8c also has a radial and through duct 8d to allow, depending on the rotational position of the rotary valve 8, to free the air passage by placing the opening 7 in communication with the open air or d '' close said opening 7. The rotary valve 8 is thus illustrated in the open position for example in Figure 6 and in the closed position for example in Figure 8, 9 or 10

The container 1 and the jaws 9 are advantageously made in one piece, for example by injection of a plastic material.

The axis of rotation 8a and the cylindrical part 8c are advantageously made in one piece, for example by injection of a plastic material.

The container 1 according to the invention, illustrated for example in FIG. 1, is pre-filled with at least one product of the paint, varnish or cleaning product type and comprises a closing element which is advantageously constituted by the sealing film 5.

An exemplary embodiment of the container 1 in accordance with the invention illustrated in FIGS. 2, 6, 7, 8, 9, 11 and 14 relates to a two-component container 1, intended to contain two separate components separately and in isolation. These will be mixed before a spraying operation.

Thus, as can be seen for example in FIG. 2, the container 1 internally comprises the tube 1a, the lower end 1c of which is engaged in a groove 10, for example circular and of rectangular cross section, formed in the bottom 3. The upper end of the tube 1a is advantageously provided with a peripheral flat 1b to facilitate adhesion of the sealing film 5. Reference may be made more particularly to FIG. 8.

The groove 10 therefore consists of a U-shape of the bottom 3, for example with a radial conical shape on the interior or exterior side to ensure or improve the seal. According to other exemplary embodiments, the seal can be obtained radially only on one side, sealing lips, lugs for making a snap, interlocking or elastic embedding (tight engagement with retaining elements) or other added elements. sealing may be provided, if necessary in different materials.

Axial guide ribs can also be provided on the inner tube or in the groove with an axial seal at the bottom of the groove

The upper field 2a of the side wall 2 advantageously has a contact surface less than the contact surface that has the flat 1b. This makes it possible to obtain a stronger adhesion between the sealing film 5 and the tube 1a than between the sealing film 5 and the upper field 2a of the container 1. It is thus easier to extract the tube 1a from the container 1 , more precisely from its sealed engagement in the groove 10 in the bottom 3, by exerting traction on the sealing film 5, the tube 1a then remaining attached to said sealing film 5. This is illustrated for example in FIG. 9.

Figure 10 illustrates an embodiment of the container 1 according to the invention which is intended to contain only one component. There is therefore no tube 1a and no partition wall disposed inside the container 1 or engaged in the groove 10.

FIG. 11 illustrates an exemplary embodiment of a two-component container 1 according to the invention. It is necessary to extract the inner tube 1a so as to be able to mix the components stored respectively inside said tube 1a and peripherally in the container 1 around said tube 1a. The latter can also be off-center in container 1.

The container 1 consists of a translucent or opaque plastic material depending on the product or products contained, which may be sensitive to light, in particular to UV radiation.

It may be advantageous to use a hollow stirring rod 12, illustrated in FIGS. 11 and 12 which has a shoulder 12a in the form of a leading edge at one of its ends as well as positioning notches 12b at its other. end. It may thus be useful to engage the shoulder 12a under the flat 1b of the inner tube 1a by bearing with the rod 12, in particular using one of the notches 12b, on the upper field 2a. A leverage is thus used to lift and extract the tube 1a from the container 1 or to initiate its extraction out of the groove 10.

Once this tube 1a inside extracted from the container 1, it is indicated to mix the two components inside said container 1 using the stirring rod 12. The latter is provided for this purpose with holes 12c facilitating the mixing operation.

The container 1 is advantageously provided with portions of helical ribs 13 on the upper and outer side of the peripheral side wall 2 so as to constitute a means of connection to a spray gun 14. Such a connection, known as such, is made by means of a cover 15 provided with an outlet orifice associated with an adapter. The cover 15 has internally complementary mounting means to the rib portions 13 to be mounted or screwed on the container 1. The adapter mounted on the outlet orifice makes it possible to connect the reservoir thus formed on the spray gun 14. A filter 16 is preferably integrated into cover 15.

The reservoir comprising the container 1 and the cover 15 according to the invention, intended to be mounted on a painting or spraying tool, for example a spray gun 14.

The present description mainly relates to the case of a two-component or single-component product. The increase in the number of components results in the relative multiplication of individual additional volumes containing each of these in container 1.

If the final product used after mixing for spraying or spraying is for example a paint, a primer, a coating or a varnish, the first component may be a solvent or a binder and the second component a filler or a hardener.

The cover 15 advantageously has a part or adaptation part or adapter intended to connect the entire reservoir of the invention to a spraying tool. In the case where the disposable assembly 1 of the invention is designed to be mounted on a spray gun 14, in particular by gravity, the adaptation part or part comprises a distribution cone or a particular technical form of adaptation to the 'entry of the gun 14 as shown in particular in Figures 13. The assembly, also called reservoir, comprising the container 1 and the cover 15, thus constitutes a real complete cup which is disposable.

The container 1, illustrated for example in FIG. 14, includes reinforcements 17 which are integral with the bottom 3 and a part 10a projecting from the external face 3a, delimiting the groove 10. The reinforcements 17, for example three in number, have a triangle shape and are distributed substantially in a star along the part 10a. The reinforcements 17 also extend on either side of the part 10a of circular extension. The reinforcements 17 thus contribute to limiting or eliminating the deformations of the bottom 3, in particular during the sealing or sealing operation of the container 1, during which the said container is subjected to a certain number of mechanical stresses.

Obviously, the invention is not limited to the preferred embodiments or implementation described above and shown in the different figures, the person skilled in the art can make numerous modifications and imagine other variants without going out or the scope or the scope of the invention.

Claims (18)

1. Disposable container (1) containing at least one liquid component of the paint, varnish or cleaning product intended for spraying type and having a bottom (3), at least one peripheral side wall (2) extending from the bottom (3) up to an upper peripheral edge (2a) forming a spaced open connection end and facing said bottom (3), said connection end being closed by a shutter member, characterized in that the member d 'obturation is a sealing film (5) glued and / or heat-sealed on the upper peripheral edge (2a). 2. Container (1) according to claim 1, characterized in that the sealing film (5) has, by its shape, at least one grip tab (5a) projecting from the upper peripheral edge (2a) of the side wall ( 2). 3. Container (1) according to claim 1 or 2, characterized in that the sealing film (5) comprises an aluminum foil covered on one side with a plastic material suitable for heat sealing with the material constituting said container (1) . 4. Container (1) according to claim 3, characterized in that it internally comprises at least one rigid and removable wall engaged with a lower end (1c) in a groove (10) formed in the bottom (3) and making it possible to make at least one sealed compartment intended to store and isolate at least one additional component. 5. Container (1) according to claim 4, characterized in that the rigid and removable wall defines an internal tube (1a). 6. Container (1) according to claim 4 or 5, characterized in that the upper end of the rigid and removable wall has a flat (1b) whose total surface is greater than the total surface of the upper peripheral edge (2a) , the flat (1b) on which the sealing film (5) adheres extending substantially at the same level as the upper peripheral edge (2a) on which also adheres said sealing film (5). 7. Container (1) according to any one of claims 1 to 6, characterized in that the sealing film (5) can be torn off or torn. 8. Container (1) according to any one of claims 1 to 6, characterized in that the bottom (3) is provided with a closable vent device (6), which comprises an opening (7) forming a passage air, formed in the bottom (3). 9. Container (1) according to claim 8, characterized in that the vent device (6) comprises a rotary valve (8) mounted on an external face (3a) of the bottom (3) in the extension of the opening (7) so as to block and free the air passage. 10. Container (1) according to any one of claims 1 to 9, characterized in that it is pre-filled with at least one product. 11. Container (1) according to any one of claims 4, 5 or 6, characterized in that it comprises reinforcements (17) rigidification integral with the bottom (3) and the part (10a) delimiting the groove ( 10), said part (10a) projecting from an outer face (3a) of the bottom (3). 12. Container (1) according to any one of claims 1 to 11, characterized in that the side wall (2) has, in the vicinity of its connection end, on its outer periphery, ribs (13) or segments of thread. 13. liquid spraying apparatus comprising a spray gun (14) fed by gravity and a reservoir comprising a disposable container (1) according to any one of claims 1 to 12, the sealing film (5) of which is torn off or torn, a removable cover (15), said cover (15) being arranged so as to close the open end of the container (1), characterized in that the bottom (3) of the container (1) is provided with an opening (7) closable, the container (1) being made of a translucent plastic material chosen so that the content of the container (1) is visible and having markings on the side wall (s) to enable the quantity of the content to be determined, the cover (15) being provided with an orifice for transferring liquid from the reservoir to an inlet of the spray gun (14) and a filter (16) being arranged so as to filter the liquid sucked out of the r tank through the cover opening (15), the filter (16) being located in the cover (16). 14. Liquid spraying device comprising a spray gun (14) and a reservoir for a liquid to be sprayed, the reservoir comprising a container (1) according to any one of claims 1 to 12, including the sealing film (5 ) is torn off or torn and a removable cover (15) which is arranged to close the open end of the container (1), the cover (15) having an opening which can be connected to the spray gun (14) so as to allow the suction of the liquid out of the tank during use. 15. Device according to claim 14, characterized in that the spray gun (14) comprises an integrated connection means which is arranged to achieve a non-screwed engagement with a connector means cooperating on the cover (15) and by means of which the reservoir is detachably attached to the spray gun (14). 16. Device according to claim 15, characterized in that the spray gun (14) comprises an integrated socket, arranged so as to engage without threading with the connector means, which comprise a tubular coupling member which is adjusted by pushing into the socket, the tubular coupling member having a first portion which provides a fluid tight connection between the coupling member and the socket and a second portion which can cooperate with the spray gun (14) the exterior of the socket to prevent rotation of the coupling member in said socket without limiting the relative axial movement between the coupling member and said socket to engage / disengage the coupling member. 17. Process for preparing and using a liquid spraying system, characterized in that it consists of: a) use a container (1) according to any one of claims 1 to 12, b) separating the sealing film from the container (1) containing at least one liquid component, c) mount the cover (15) on the container (1) to form a spray tank, d) connect the reservoir to a spray gun (14), e) spraying the liquid component. 18. The method of claim 17, characterized in that it consists, after step b) and before step c), of removing from the container (1) an internal tube (1a) containing another component, by pulling on the sealing film (5) which still adheres to said internal tube (1a) and to mix the components. 7/7