EP2746189A1 - Cover unit for an aerosol spray can and aerosol spray can - Google Patents

Abstract

The cover unit (1) has an annular cover element (2), through which the cover unit is connected with a front side of an aerosol spray paint can. The annular cover element has a snap-in element (11) in the area of an outer edge (10), which projects away from the inner surface (5) of the annular cover element. The snap-in element is displaced inwards with respect to the outer edge in the direction of a longitudinal axis (12) such that a ring section (13) is limited between the snap-in element and the outer edge. An independent claim is included for an aerosol spray paint can with a cylindrical base body.

Description

The present invention relates to a cover unit for an aerosol paint spray can, wherein the cover unit comprises an annular cover member, via which the cover unit is connectable to an end face of an aerosol paint spray can, wherein the annular cover member has an at least largely convex outer surface and an at least largely concave Inner surface has, wherein the cover unit comprises a cap which is connected to the annular cover member via at least one predetermined breaking point, wherein the annular cover member has a cap facing the cap and an opening bounding inner edge, and wherein the annular cover member facing away from the cap, preferably annular, Has outer edge, which defines a maximum outer diameter of the annular cover member. In addition, an aerosol paint spray can is described with a cylindrical base body, wherein the base body in the region of a lower end side has a bottom body occlusive bottom portion, the base body in the region of an upper end side of the base body upwardly closing ceiling portion with a Farbsprüheinrichtung comprises, and wherein the ceiling portion is connected by means of at least one folding portion with the base body.

Generic lid units and aerosol paint spray cans equipped therewith are known in the prior art. Usually, it is provided in the known solutions to connect the cover unit on the cover with the can body. The connection is usually made via the locking of the cover unit with the rest of the can body in the region of a corresponding folding section. Shown is such a compound, for example in the DE 2 132 384 A1 ,

In can bodies, in which the upper fold merges flush into the rest of the can body, however, said compound inevitably leads to a step-shaped shoulder being created between the cover unit and the can body, which is generally perceived as disturbing.

The object of the present invention is therefore to propose a cover unit as well as an aerosol paint spray can which, even with the last-mentioned can bodies, allow a flush transition between the cover unit and the can body.

The object is achieved by a cover unit and an aerosol paint spray can with the features of the independent claims.

Thus, the invention proposes that the annular cover member of the cover unit in the region of its outer edge comprises at least one projecting away from its inner surface of the annular cover locking element. The latching element is thus located (relative to an aerosol paint spray can equipped with the cover unit and upright) on the underside of the cover element, so that it can be latched to corresponding mating surfaces of the can body when placed or pressed onto the can body. In addition, it is provided that the at least one latching element with respect to the outer edge of the cover in the direction of a perpendicular to the opening of the same extending longitudinal axis is arranged offset inwardly. The locking element is therefore not directly on the outer edge of the cover (which forms the cover unit together with the later removable from the can cap). Rather, a ring portion is limited by the locking element and the outer edge. This ring section finally serves to cover an outer fold section of an aerosol paint spray can. In other words, the cover has thus seen from outside to inside a ring portion which serves as a cover of a fold of a corresponding can body, one or more (preferably annularly arranged or formed) latching elements, by means of which the cover element can be connected to the can body and a central opening, through which a paint spraying system (eg a nozzle head) can protrude after connection of the cover element to the can body, which in the pressed state prevents spraying of the in the color of the can is used (in the context of the invention the term "color" also means lacquers, glazes or other color systems).

It is advantageous if the smallest perpendicular to the longitudinal axis extending distance (A) between the outer edge and the longitudinal axis with respect to the outwardly facing surface portion of the locking element has an amount between 2 mm and 6 mm, preferably between 3 mm and 5 mm, lies. If the distance in the said area, it is ensured that the cover unit according to the invention can be connected to known standard cans and in this case the upper folded portion of the can, on which the main body is connected to the adjacent end-side ceiling portion covers. In other words, it is provided that the latching element (s) of the cover unit protrude inwards and in this case can be latched with an outwardly facing counterpart section of the said ceiling section of the can body. After latching the ring portion of the cover unit projects beyond the said upper folded portion of the can body like a roof, so that the inner contact area between locking element (s) and can body completely covered and not visible or accessible from the outside. As a result, the cover unit finally merges flush in the area of the folded section of the can body covered by it into its cylindrical base body, thus forming a clean and relatively even transition between the can body and the cover unit.

It is advantageous if the locking element is formed by a, preferably one or more times interrupted, locking ring, which preferably extends concentrically to the opening. The locking ring can, for example, a in Have substantially parallel to the said longitudinal axis of the cover member extending portion and finally pass into an angled thereto and inwardly facing portion, which in turn serves to engage in a corresponding recess of the can body. The vertical section preferably extends over 2 to 5 mm, while the angled section has, for example, an extension of 1 to 4 mm which extends radially with respect to the said longitudinal axis.

Particular advantages bring it when between the outer edge of the annular cover member and the at least one locking element a predetermined breaking point is present. This ensures that the ring section formed by the annular cover element is irreversibly separable from the remaining sections of the cover unit when a certain force is exerted. In other words, it is not possible to remove the cover without destroying the same from the rest of the can body. Manipulations of the aerosol paint spray can thus be ruled out, as removal of the cover element would subsequently be easily recognized by the buyer.

It is advantageous if the predetermined breaking point is formed as a material taper, wherein the material taper is formed by a notch in the region of the inner surface of the annular cover member. This has the decisive advantage that the material rejuvenation is not visible with regard to the convex outer surface.

Likewise, it brings advantages when the annular cover member has at least two spaced-apart predetermined breaking points extending between the upper opening and the lower outer edge of the cover, wherein the annular cover is irreversibly separated along the predetermined breaking points in at least two items. This also allows manipulation of the contents of the can be avoided. Likewise, the recycling process is facilitated because the cover can be removed reliably and without incalculable splinter hazard from the can body when a certain force. Alternatively, it may eventually be sufficient to provide only a predetermined breaking point, so that the cover does not break into several pieces, but only tears along the predetermined breaking point, in which case re-attaching the cover to the can body is impossible.

It is likewise advantageous if the annular cover element has a recess on its inner surface in the region of the annular section. The recess or a corresponding bulge on the outer surface of the cover allow a particularly close nestling of the cover or its annular portion of the folded portion of the can body, so that a particularly smooth transition between cover and fold section is possible.

It is particularly advantageous if the cover cap is provided with one or more latching means which are placed in the region of the predetermined breaking point, via which it is connected to the annular cover element, and which extend at least partially in the direction of said longitudinal axis. The locking means allow after the separation of the cover and cap (which must be done before the first use by the user of the box) at any time a re-attachment of the cap on the can body. The locking means may for example be arranged distributed in a ring around the lower edge of the cap and can engage in corresponding depressions of the can body when pressed onto the can body, for example in the area of the paint spraying device.

Likewise, it brings advantages when the cap and the annular cover are at least partially painted the same color. The cover unit can be made in one piece and painted in this case. At the same time, it is always easy for the user of the aerosol paint spray can possible to recognize the hue of the color contained in the can, since the cover remains locked even after the detachment of the cap on the can body.

The aerosol paint spray can according to the invention finally has a cylindrical base body and a bottom section arranged in the region of a lower end side and closing the base body at the bottom. Furthermore, in the region of an upper end face (in each case based on a can standing upright on a flat surface), the base body has a ceiling section which closes the base body upwards with a paint spraying device, for example in the form of a conventional spray attachment, in the pressed state Spraying the paint contained in the can causes. Finally, the ceiling section is positively connected to the base body with the aid of at least one (generally ring-shaped) folding section, so that a can body is formed.

According to the invention, the aerosol paint spray can is now characterized in that the ceiling section (in a plan view of the upright can) is at least largely covered by means of a cover unit surrounding the paint spraying device. In other words, it is provided that the cover unit preferably flush or flush merges into the main body of the box or its upper fold portion, so that sharp-edged transitions are avoided. The cover unit engages in this case for fixing with respect to the can body with the aid of at least one locking element form fit into one or more wells, which in turn are in the region of the ceiling portion. Finally, it is provided that the at least one latching element is placed in a longitudinal section of the aerosol paint spray can between the folding section and the recess (s). The paint spray can thus has a generally visible from the outside upper fold region, which is covered by the cover of the cover unit (partially). At the fold section borders again an outwardly directed, preferably annular contact surface, with which the or the locking elements of the cover are positively connected. It is provided that the contact region of the latching element (s) and contact surface between the outwardly facing surface of the ceiling portion and the inwardly facing inner surface of the cover is located and thus is not visible from the outside.

It is advantageous in this context, in particular, if the cover unit is designed in accordance with the previous or following description, with one or more features being able to be implemented as desired. With regard to the respective advantages, reference is likewise made to the corresponding sections of the description.

It is also advantageous if the outer folded portion of the aerosol paint spray can be overlapped by the annular portion formed by the annular cover, and preferably covered to the top. In this case, the ring section conforms to the fold section in the region of a corresponding contact surface, so that a direct contact of the two sections takes place. In the best case, there is a nearly continuous transition from the ring section to the folding section.

It is advantageous if the depression of the ceiling section, with which the cover element is latched, is formed by an annular constriction of the ceiling section. The ceiling portion has in this case a outgoing from the annular fold portion and preferably also annularly formed transition section, which eventually merges into the constriction. In other words, the outer diameter of the ceiling portion increases from the constriction both in the direction of the upper opening and the lower opening of the cover, so that a positive connection between Can body and lid unit is made possible.

It is therefore of advantage if the recess merges into a first direction in the folding section and in a second direction into an annular section of the ceiling section whose outer diameter increases in the direction away from the main body. The locking element, in particular, if it is designed as a detent ring, in this way has a secure hold in any direction and thus provides a stable fixation of the cover over the ceiling portion of the main body of the aerosol paint spray.

It is advantageous if the at least one latching element is placed in a longitudinal section of the aerosol paint spray can between the annular section of the ceiling section and the folding section. In other words, the cover has a preferably designed as a latching detent element which engages over the annular portion from the outside and in this case engages in a corresponding recess of the ceiling portion. On the opposite of the depression, d. H. The folding section is finally placed, radially outwardly pointing side of the locking element, which in turn is roof-shaped covered by the starting from the locking element radially outwardly facing annular portion of the cover.

Figur 1

eine Seitenansicht einer erfindungsgemäßen Deckeleinheit für eine Aerosol-Farbsprühdose, geschnitten entlang der Linie A-A' in Figur 4,

Figur 2

die Deckeleinheit aus Figur 1 mit abgetrennter Abdeckkappe,

Figur 3

eine Seitenansicht der in den restlichen Figuren gezeigten Deckeleinheit,

Figur 4

eine Draufsicht der Deckeleinheit,

Figur 5

die Deckeleinheit entsprechend der Darstellung in Figur 1 in einem auf einer Aerosol-Farbsprühdose montierten Zustand.

Finally, it is advantageous if the cover unit merges flush in the folding section or in the cylindrical basic body of the aerosol paint spray can in the region of the folding section. In this case, the aerosol paint spray can has the smoothest possible transition in the area between fold section and cover element, and sharp-edged transitions can thereby be avoided. Also, the cover member in this case, no attack surface over which a cover member of the can body dissolving force could be transmitted to the cover. Further advantages of the invention are described in the following embodiment. Show it:

FIG. 1

a side view of a cover unit according to the invention for an aerosol paint spray can, cut along the line AA 'in FIG. 4 .

FIG. 2

the lid unit off FIG. 1 with separated cap,

FIG. 3

a side view of the lid unit shown in the remaining figures,

FIG. 4

a top view of the cover unit,

FIG. 5

the cover unit as shown in FIG. 1 in a state mounted on an aerosol paint spray can.

The figures show a cover unit 1 according to the invention in various views, wherein the cover unit 1 in the FIGS. 1 to 4 alone and in FIG. 5 shown after connection with an aerosol paint spray can.

As can be seen from the figures, the cover unit 1 comprises in principle a cover element 2 of annular design in a plan view, which is in contact with a cover cap 6 via one or more predetermined breaking points 7 prior to the first opening of the aerosol paint spray can. This has two main advantages.

On the one hand, the purchase of the aerosol paint spray can easily be seen whether it has already been opened, since the cover 2 is no longer materially connected in this case with the cap 6 (both parts upon the first opening of the aerosol paint spray can along the predetermined breaking point (s) 7 irrevocably separated from each other; please refer FIG. 2 ).

On the other hand, the entire cover unit 1 can be produced as a component and in this case be coated with the paint contained in the aerosol paint spray (in the context of the invention the term "paint" means all sprayable paint systems, such as, for example, paints or glazes). , This ensures that the user of the aerosol paint spray can even with removed cap 6 can detect the color contained in the aerosol paint spray on the color of the cover 2, which always remains on the can body by a special, described in more detail below latching. The said predetermined breaking point 7 can be formed as a circumferential predetermined breaking connection between the cap 6 and cover 2, moreover. It is of course also conceivable to connect the cap 6 and the cover 2 in the said area via a plurality of web-shaped predetermined breaking points 7.

In order to separate the cap 6 from the cover element 2 before the first use of the aerosol paint spray can (or the paint spray device releasing the paint spray by pressing down), it is generally sufficient to press the cover cap 6 laterally together with the fingers. The resulting deformation of the cap 6 finally leads to a breakage of the predetermined breaking point (s) 7 and thus a separation of the two elements forming the cover unit 1 (cap 6 and cover element 2).

In order to enable reclosing of the aerosol paint spray can in spite of the said separation, the cap 6 is preferably provided with one or more locking means 23 which, after plugging in the cap 6, can interact positively with corresponding abutment surfaces of an insert 24 carrying the paint spraying device 20 (the insert 24, for example, with an annular flange 25th of the ceiling section 19 placed in the area of the upper end face 3 of the aerosol paint spray can be connected). In other words, the cap 6 can be connected as often as desired with the aerosol paint spray can to allow it to close. To open the aerosol paint spray only the cap 6 must be compressed laterally to ensure that the or the locking means 23 are out of engagement with the insert 24, this type of connection acts simultaneously as a child safety.

In order to mark the places where the cap 6 must be compressed, it is finally conceivable but not essential to provide the cap 6 with corresponding engagement surfaces 26, as exemplified in the Figures 3 and 4 are shown.

The cover element 2 itself essentially has a largely convex outer surface 4 and a largely concave inner surface 5, the connection with the covering cap 6 taking place in the region of a central opening 8, which is defined by an inner edge 9 of the cover element 2.

In the lower region, the cover 2 further comprises a, a maximum outer diameter of the cover 2 defining outer edge 10 and one or more locking elements 11, via which the cover 2 is connectable to the ceiling portion 19 of a can body. The locking element 11 may be formed as a locking ring 16 which surrounds the lower opening 27 of the cover 2 annularly, wherein the locking ring 16 is arranged offset relative to the outer edge 10 and relative to the longitudinal axis 12 of the cover 2 inwardly.

Alternatively, of course, several individual locking hooks come to use 24, wherein the locking ring 16 promises a particularly strong connection with the ceiling portion 19 of the can body (see also FIG. 5 It should be noted at this point that the can body is not shown in any of the figures; However, corresponding can bodies are known in the form of cylindrical structures with a corresponding bottom section and during the production of aerosol paint spray can with the form-fitting in FIG. 5 shown outer fold portion 14 of the ceiling portion 19 connected).

The further features of the cover unit 1 according to the invention are in particular made FIG. 5 which will be discussed in more detail below.

First shows FIG. 5 the positive connection between the cover 2 and the ceiling portion 19 of the can body. The connection is made via a latching of the latching elements 11 or 11 with one or more recesses 17 of the ceiling portion 19, wherein the recess 17 may be formed, for example, as an annular constriction 21 of a vertically extending annular portion of the ceiling portion 19. The cover unit 1 can thus be connected by pressing on the ceiling portion 19 of the can body in a simple manner with the can body.

In order to prevent now that the connection point is accessible from the outside, the invention provides that between the locking element (s) 11 and the annular outer edge 10 of the cover 2, a ring portion 13 is limited, with the help of the outer fold portion 14 of Aerosol paint spray can be covered. For this purpose, the annular section 13 can have a downwardly pointing recess 18, via which it can nestle against the generally curved surface of the outer folding section 14 (the smallest perpendicular distance to the longitudinal axis 12 between the outer edge 10 and the longitudinal axis 12 outwardly facing surface portion 15 of the locking elements or 11 preferably has an amount which is between 2 mm and 6 mm, preferably between 3 mm and 5 mm).

In order to facilitate the removal of the cover element 2 from the can body after the use of the aerosol paint spray can and for the purpose of recycling, the cover element 2 is preferably provided with one or more predetermined breaking point (s) 7 (see FIGS. 1 to 3 ), which extend between the lower opening 27 and the upper opening 8 of the cover 2 and ensure an irreversible breaking or separation of the cover 2 in a plurality of individual elements at a certain force entry.

Additionally or alternatively, one or more indentations 22 may also be present between the latching element (s) 11 and the outer edge 10 of the cover element 2 in order to break apart the cover element 2 when a corresponding force is applied (eg with the aid of a screwdriver) in this area. Once removed cover element 2 can not be re-connected to a can body in both cases, so that unnoticed manipulations of the aerosol paint spray can be excluded.

The present invention is not limited to the illustrated and described embodiment. Variations within the scope of the claims are possible as well as a combination of features, even if they are shown and described in different figures.

LIST OF REFERENCE NUMBERS

1

cover unit

2

cover

3

upper end of the aerosol paint spray can

4

convex outer surface

5

concave inner surface

6

cap

7

Breaking point

8th

perforation

9

inner edge

10

outer edge

11

locking element

12

longitudinal axis

13

ring section

14

outer fold section of the aerosol paint spray can

15

outwardly facing surface portion of the locking element

16

locking ring

17

deepening

18

indentation

19

ceiling section

20

paint spraying

21

constriction

22

notch

23

latching means

24

commitment

25

flanging

26

attack surface

27

lower opening of the cover

D

Outer diameter of the annular cover member

A

smallest perpendicular to the longitudinal axis extending distance between the outer edge and the respect to the longitudinal axis outwardly facing surface portion of the locking element

Claims (15)

Cover unit for an aerosol paint spray can, - wherein the cover unit (1) comprises an annular cover element (2) via which the cover unit (1) can be connected to an end face (3) of an aerosol paint spray can, - wherein the annular cover member (2) has an at least largely convex outer surface (4) and an at least largely concave inner surface (5), - wherein the cover unit (1) comprises a cover cap (6) which is connected to the annular cover element (2) via at least one predetermined breaking point (7), - Wherein the annular cover member (2) has a cap (6) facing and an opening (8) delimiting inner edge (9), and - wherein the annular cover element (2) has a cover cap (6) facing away, preferably annular, outer edge (10) which defines a maximum outer diameter (D) of the annular cover member (2), characterized in that the annular cover element (2) in the region of the outer edge (10) at least one of the inner surface (5) of the annular cover (2) projecting detent element (11), with respect to the outer edge (10) in the direction of a perpendicular to the aperture (8) extending longitudinal axis (12) is arranged offset inwards, so that between the locking element (11) and the outer edge (10) a ring portion (13) is limited, with the aid of an outer fold portion (14) of an aerosol Spray paint at least largely by connection to the cover unit (1) can be covered. Lid assembly according to the preceding claim, characterized in that the smallest perpendicular to the longitudinal axis (12) extending Distance (A) between the outer edge (10) and with respect to the longitudinal axis (12) outwardly facing surface portion (15) of the locking element (11) has an amount between 2 mm and 6 mm, preferably between 3 mm and 5 mm, lies. Lid unit according to one or more of the preceding claims, characterized in that the latching element (11) by a, preferably one or more times interrupted, locking ring (16) is formed, which preferably concentric with the opening (8). Lid unit according to one or more of the preceding claims, characterized in that between the outer edge (10) of the annular cover member (2) and the at least one latching element (11) a predetermined breaking point (7) is present, so that by the annular cover member (2 ) formed annular portion (13) irreversible from the remaining portions of the cover unit (1) is separable. Lid unit according to one or more of the preceding claims, characterized in that the predetermined breaking point (7) is formed as a material taper, wherein the material taper by a notch (22) in the region of the inner surface (5) of the annular cover member (2) is formed, so that the material tapering is not visible with regard to the convex outer surface (4). Lid unit according to one or more of the preceding claims, characterized in that the annular cover element (2) has at least two spaced predetermined breaking points (7) extending between the aperture (8) and the outer edge (10), wherein the annular cover member ( 2) along the predetermined breaking points (7) irreversibly in at least two Items is separable. Cover unit according to one or more of the preceding claims, characterized in that the annular cover element (2) on its inner surface (5) in the region of the annular portion (13) has a recess (18). Lid unit according to one or more of the preceding claims, characterized in that the cover cap (6) is provided with one or more latching means (23) which is in the region of the predetermined breaking point (7), via which it is connected to the annular cover element (2) , are placed, and at least partially extend in the direction of the longitudinal axis (12). Lid unit according to one or more of the preceding claims, characterized in that the cover cap (6) and the annular cover element (2) are at least partially painted in the same color. Aerosol paint spray can with a cylindrical body, wherein the base body in the region of a lower end face has a base section which closes the base body at the bottom, - Wherein the main body in the region of an upper end face (3) comprises a ceiling portion (19) closing the base body at the top with a paint spraying device (20), and - wherein the ceiling portion (19) by means of at least one folding section (14) is connected to the base body, characterized in that the cover portion (19) at least for the most part by means of a Farbsprüheinrichtung (20) surrounding the surrounding lid unit (1), wherein the cover unit (1) by means of at least one latching element (11) positively in one or more in the region Ceiling portion (19) arranged Recess (s) (17) engages, and wherein the at least one latching element (11) is placed in a longitudinal section of the aerosol paint spray between the folding section (14) and the or the recesses (17). Aerosol paint spray can according to the preceding claim, characterized in that the cover unit (1) is designed according to one or more of claims 1 to 9. Aerosol paint spray can according to the preceding claim, characterized in that the outer fold portion (14) of the aerosol paint spray can be overlapped by the annular portion (13) formed by the annular cover element (2) and preferably covered at the top. Aerosol paint spray can according to one or more of claims 10 to 12, characterized in that the recess (17) is formed by an annular constriction (21) of the ceiling portion (19), wherein the recess (17) preferably in a first direction in the fold portion (14) and in a second direction in an annular portion (23) of the ceiling portion (19) merges, the outer diameter increases in the body facing away from the direction. Aerosol paint spray can according to one or more of claims 10 to 13, characterized in that the at least one latching element (11) placed in a longitudinal section of the aerosol paint spray between the annular portion (23) of the ceiling portion (19) and the folding portion (14) is. Aerosol paint spray can according to one or more of claims 10 to 14, characterized in that the cover unit (1) in the region of the folding section (14) flush in the folding section (14) or merges into the cylindrical body of the aerosol paint spray can.

Images