Folding carton

Patent metadata

Field	Value
Publication number	US-11560252-B2
Application number	US-202016853595-A
Country	US
Kind code	B2
Filing date	Apr 20, 2020
Priority date	Apr 25, 2019
Publication date	Jan 24, 2023
Grant date	Jan 24, 2023

Abstract

A foldable carton is provided. The carton includes a bottom panel, a front panel, a rear panel, end panels, each foldably connected to the edges of the bottom panel. The carton further includes front end flap panels connected to the lateral ends of the front panel and rear end flap panels connected to the lateral ends of the rear panel. Each front end flap panel includes a connecting end section and a triangular fold flap connected to the connected end section. The triangular fold flap is connected to a side edge of the adjacent end panel by a hinged fold line. The connecting end section is secured to the front panel in an overlying arrangement and the triangular fold flap is configured to about the hinged fold line to allow the front panel to freely move between a fully upright position and a partially upright position.

First claim

What is claimed is:

1. A foldable carton comprising:
a bottom panel;
a front panel foldably connected to the bottom panel along a longitudinal front edge of the bottom panel;
a rear panel foldably connected to the bottom panel along a longitudinal rear edge of the bottom panel;
a first end panel foldably connected to the bottom panel along a lateral edge of the bottom panel;
a front end flap panel foldably connected to the front panel along a lateral edge of the front panel, the front end flap panel comprising a connecting end section and a triangular fold flap formed by an intermediate fold line extending diagonally through the front end flap panel; and
a rear end flap panel foldably connected to the rear panel along a lateral edge of the rear panel;
wherein the triangular fold flap of the front end flap panel is connected to a side edge of the first end panel by a hinged fold line;
wherein the connecting end section of the front end flap panel is secured to the front panel in an overlapped arrangement;
wherein the triangular fold flap of the front end flap panel is configured to rotate about the intermediate fold line to permit the front panel to move between a fully upright position and a partially upright position.

2. The carton of claim 1 , wherein the carton is configured to transition between a folded configuration and an unfolded configuration, wherein the front panel and the bottom panel are positioned in a generally flattened and generally parallel arrangement when the carton is in the folded configuration.

3. The carton of claim 2 , wherein when the carton is in the folded configuration, the front panel is folded outward relative to the bottom panel and the rear panel is folded inward relative to the bottom panel so that the rear panel is generally parallel to and overlies the bottom panel and the front panel is adjacent to the bottom panel.

4. The carton of claim 3 , wherein when the carton is in the unfolded configuration, the first end panel is extends upward into a generally perpendicular position relative to the bottom panel and the front and rear panels extend in an upright position.

5. The carton of claim 2 , wherein the front panel has a height greater than one-half a depth of the bottom panel.

6. The carton of claim 5 , wherein the rear panel has a height greater than one-half the depth of the bottom panel.

7. The carton of claim 1 , wherein the first end panel includes a triangular fold flap formed by an intermediate fold line extending adjacent to a longitudinal edge of the first end panel opposite the side edge and the hinged fold line, wherein the triangular fold flap is secured to the rear end flap panel in an overlapped arrangement.

8. The carton of claim 1 , wherein the front panel is configured to rotate about the longitudinal front edge of the bottom panel between a fully upright position and a partially upright position.

9. The carton of claim 8 , wherein the front panel is biased toward the partially upright position.

10. The carton of claim 1 , wherein the triangular fold flap of the front end flap panel is configured to rotate about the hinged fold line to permit the front end panel to move between a fully upright position and a partially upright position.

11. The carton of claim 1 , further comprising a cover portion foldably attached to an upper edge of the rear panel.

12. The carton of claim 11 , wherein the cover portion comprises:
a cover panel foldably connected to the rear panel along the upper edge of the rear panel; and
a front cover panel foldably connected to the cover panel along a longitudinal edge of the cover panel opposite the upper edge of the rear panel.

13. The carton of claim 12 further comprising a locking mechanism configured to secure the cover portion in a closed position, wherein the locking mechanism comprises a locking tab defined into an upper edge of the front panel, the locking tab extending outward away from the bottom panel, and a slot defined into the front cover panel.

14. The carton of claim 13 , wherein the locking tab frictionally engages the slot when the cover portion is in the closed position.

15. A foldable carton comprising:
a bottom panel;
a front panel connected to a first longitudinal edge of the bottom panel;
a rear panel connected to a second longitudinal edge of the bottom panel opposite the first longitudinal edge;
a first end panel connected to a first lateral edge of the bottom panel;
a front end flap panel attached to the front panel on an interior surface of the front panel, the front end flap panel comprising a triangular fold flap; and
a rear end flap panel connected to the rear panel along a lateral edge of the rear panel;
wherein the triangular fold flap of the front end flap panel is connected to a side edge of the first end panel by a hinged fold line;
wherein the triangular fold flap of the front end flap panel is configured to rotate with respect to the front panel and with respect to the first end panel;
wherein the triangular fold flap of the front end flap panel is configured to rotate about an intermediate fold line formed in the front end flap panel to permit the front panel to move between a fully upright position and a partially upright position relative to the bottom panel.

16. A foldable carton comprising:
a bottom panel;
a front panel foldably connected to the bottom panel along a longitudinal front edge of the bottom panel;
a rear panel foldably connected to the bottom panel along a longitudinal rear edge of the bottom panel;
a first end panel foldably connected to the bottom panel along a lateral edge of the bottom panel;
a front end flap panel foldably connected to the front panel along a lateral edge of the front panel, the front end flap panel comprising a connecting end section and a triangular fold flap formed by an intermediate fold line extending diagonally through the front end flap panel; and
a rear end flap panel foldably connected to the rear panel along a lateral edge of the rear panel;
wherein the triangular fold flap of the front end flap panel is connected to a side edge of the first end panel by a hinged fold line;
wherein the connecting end section of the front end flap panel is secured to the front panel in an overlapped arrangement;
wherein the carton is configured to transition between a folded configuration and an unfolded configuration, wherein the front panel and the bottom panel are positioned in a generally flattened and generally parallel arrangement when the carton is in the folded configuration.

17. The carton of claim 16 , wherein when the carton is in the folded configuration, the front panel is folded outward relative to the bottom panel and the rear panel is folded inward relative to the bottom panel so that the rear panel is generally parallel to and overlies the bottom panel and the front panel is adjacent to the bottom panel.

18. The carton of claim 17 , wherein when the carton is in the unfolded configuration, the first end panel is extends upward into a generally perpendicular position relative to the bottom panel and the front and rear panels extend in an upright position.

19. The carton of claim 16 , wherein the front panel has a height greater than one-half a depth of the bottom panel.

20. The carton of claim 19 , wherein the rear panel has a height greater than one-half the depth of the bottom panel.

Assignees

• Huhtamaki Inc

Inventors

• Zeiler George

Classifications

• B31B50/26

  Folding sheets, blanks or webs · CPC title

• B31B50/734

  interengaging tongues and slots · CPC title

• B65D5/4266

  Folding lines, score lines, crease lines · CPC title

• B65D5/2057 Primary

  Inter-engaging self-locking flaps (B65D5/4254 takes precedence) · CPC title

• B65D5/3642

  the secured corners presenting diagonal, bissecting or similar folding lines, the central panel presenting no folding line · CPC title