Container having a push-in locking device and blank therefor

1. A container formed from at least one blank of sheet material, the container comprising:

a tray comprising a tray front panel;

a cover configured to close the tray, the cover comprising a cover top panel and a cover front panel that extends downwardly from a front edge of the cover top panel, the cover front panel configured to be positioned in an at-least partially overlapping arrangement with the tray front panel when the cover is closed; and

a locking device comprising a locking tab hingedly attached to the cover top panel by a fold line and struck in part from the cover top panel and in part from the cover front panel, the locking device further comprising a locking recess struck from an upper edge of the tray front panel, the locking recess comprising a free edge at an upper end thereof to allow the locking tab to enter and engage with the locking recess;

wherein the locking device is configured such that the locking tab can be pressed down into the locking recess to selectively secure the cover to the tray in a closed and locked configuration by rotating the locking tab about the fold line so that, where the locking tab meets the cover top panel at the fold line, an oblique angle is formed between the cover top panel and a top face of the locking tab in the closed and locked configuration.

2. The container according to claim 1 , wherein the locking tab is configured to engage the locking recess in a friction-fit manner that resists separation.

3. The container according to claim 1 , wherein the locking recess comprises side edges that taper outwardly moving from the upper edge of the tray front panel toward a bottom edge of the locking recess.

4. The container according to claim 1 , wherein the locking tab comprises side edges that taper outwardly as they extend away from the fold line.

5. The container according to claim 4 , wherein a maximum width of the locking tab between the side edges that taper outwardly is greater than a width of the locking recess, and the side edges of the locking tab are configured to engage with side edges of the locking recess in the closed and locked configuration.

6. The container according to claim 1 , wherein the locking tab has a convex front edge.

7. The container according to claim 1 , wherein the container comprises a tray comprising the cover, the tray front panel, a tray rear panel, a tray bottom panel, and a pair of tray side panels.

8. The container according to claim 1 , wherein the cover is integrally formed with the tray.

9. The container according to claim 1 , wherein side edges of the locking tab are configured to bow upward in the closed and locked configuration.

10. The container according to claim 1 , wherein the fold line is offset from a front edge of the cover top panel by a distance that is greater than half of a longitudinal length of the locking tab.

11. A blank of sheet material for forming a container, the blank comprising:

a tray-forming portion configured to form a tray in a set-up container, the tray-forming portion comprising a tray front panel;

a cover-forming portion configured to form a cover for closing the tray in the set-up container, the cover-forming portion comprising a cover top panel and a cover front panel hingedly connected to the cover top panel, the cover front panel configured to be positioned in an at-least partially overlapping arrangement with the tray front panel when the cover is closed; and

a locking device comprising a locking tab hingedly attached to the cover top panel and struck in part from the cover top panel and in part from the cover front panel, the locking device further comprising a locking recess struck from an upper edge of the tray front panel, the locking recess comprising a free edge at an outer end thereof to allow the locking tab to enter and engage with the locking recess in the set-up container;

wherein the locking device is configured in the set-up container such that the locking tab can be pressed down into the locking recess to selectively secure the cover to the tray in a closed and locked configuration.

12. The blank according to claim 11 , wherein the locking tab is configured to engage the locking recess in a friction-fit manner that resists separation.

13. The blank according to claim 11 , wherein the locking recess comprises side edges that taper outwardly moving from the upper edge of the tray front panel toward a bottom edge of the locking recess.

14. The blank according to claim 11 , wherein the locking tab is hingedly attached to the cover top panel via a fold line, and wherein the locking tab comprises side edges that taper outwardly as they extend away from the fold line.

15. The blank according to claim 14 , wherein a maximum width of the locking tab between the side edges that taper outwardly is greater than a width of the locking recess, and the side edges of the locking tab are configured to engage with side edges of the locking recess in the closed and locked configuration.

16. The blank according to claim 11 , wherein the locking tab has a convex front edge.

17. The blank according to claim 11 , wherein the set-up container comprises a tray comprising the cover, the tray front panel, a tray rear panel, a tray bottom panel, and a pair of tray side panels.

18. The blank according to claim 11 , wherein side edges of the locking tab are configured to bow upward in the closed and locked configuration.

19. The blank according to claim 11 , wherein the locking tab is hingedly attached to the cover top panel by a fold line that is offset from a front edge of the cover top panel by a distance that is greater than half of a longitudinal length of the locking tab.