초록 ▼

A packaging case (C;C′) erected by folding from a one-piece vacuum-formed molded sheet, has rectangular walls (1-4;71-74) that fold, and are clipped closed, about an article (A;S) to be protected from shock. The ends of the case are almost-completely closed by conformal edge-to-edge abutment

A packaging case (C;C′) erected by folding from a one-piece vacuum-formed molded sheet, has rectangular walls (1-4;71-74) that fold, and are clipped closed, about an article (A;S) to be protected from shock. The ends of the case are almost-completely closed by conformal edge-to-edge abutment of end-flanges (8-11;78-81) of serpentine profile that are upstanding from the walls (1-4;71-74). The flange-edges are each molded with ridges (13, 15) and grooves (14, 16) that nest ridge-within-groove with those of the abutting edges, for absorbing shock. The walls (1-4;71-74) are hinged together edge-to-edge, and at their edges rise in steps (23,24,33.34,43,44) to a central plinth (22,32,42). The steps (23,24,33,34,43,44) of adjacent walls abut one another within the erected case for shock absorption, and each wall (1-4;71-74) is strengthened by circular recesses (25-28,35-38,45-49) of reducing diameter with depth, let into its plinth (22,32.42). The circular recesses produce frusto-conical shock-absorbing projections (57,58,60,62,63) on the outside of the case. The case (C′) may accommodate a stack (S) of component-carrying trays (T) protected by end-caps (83).

대표청구항 ▼

The invention claimed is: 1. A packaging case for enclosing one or more articles to protect the one or more articles against damage and shock during storage and transit, wherein the case has walls which are of sheet material, the walls have recesses therein to strengthen the walls, and the walls ha

The invention claimed is: 1. A packaging case for enclosing one or more articles to protect the one or more articles against damage and shock during storage and transit, wherein the case has walls which are of sheet material, the walls have recesses therein to strengthen the walls, and the walls have pairs of mutually-abutting edges that abut one another edge-to-edge, and each abutting edge of each individual pair of abutting edges has both ridges and intervening grooves that run along the edge side-by-side with one another, and wherein the abutting edges of each individual pair of abutting edges abut one another with mutual ridge-within-groove nesting between the ridges and intervening grooves of the respective abutting edges of the pair when those edges are in mutual abutment. 2. The packaging case according to claim 1, wherein the case is of molded-sheet construction. 3. The packaging case according to claim 2, wherein the case is of one-piece molded sheet. 4. The packaging case according to claim 3, wherein the case is erected from a flat form, by folding. 5. The packaging case according to claim 4, wherein the walls are hinged one to another to enable erection of the case. 6. The packaging case according to claim 1, wherein at least some of the pairs of abutting edges are abutting edges of walls which are hinged together along those edges. 7. The packaging case of claim 6, wherein the abutting edges of walls which are hinged together along those edges are of a stepped configuration to provide mutual ridge-within-groove nesting along those edges. 8. The packaging case according to claim 1, wherein the walls have flanges that abut one another edge-to-edge, and the abutting edges of the flanges are each formed with ridges and grooves to nest with one another ridge-within-groove when in mutual abutment. 9. The packaging case according to claim 1, wherein the recesses in the walls comprise recesses of circular configuration. 10. The packaging case according to claim 9, wherein the circular recesses are each of a tiered form having a diameter that decreases with depth. 11. The packaging case according to claim 10, wherein the case is of molded-sheet construction and the circular recesses are inside the case to provide stepped, shock-cushioning projections on an outside of the case. 12. A packaging case of molded-sheet construction for enclosing one or more articles to protect them against damage and shock during storage and transit, wherein the case has rectangular walls of sheet material molded with recesses for strengthening the walls, the walls are hinged together for erection of the packaging case from a flat condition to an erect condition, each wall has two longitudinal edges each of which abuts a respective one of the two longitudinal edges of another of the walls in the erect condition of the packaging case to form abutting pairs of edges between the walls in the erect condition of the packaging case, and the walls have upstanding end-flanges each of which has an elongate edge that abuts the elongate edge of another of the flanges in the erect condition of the packaging case to form abutting pairs of edges between the flanges in the erect condition of the packaging case, and wherein each abutting edge of each individual pair of abutting edges of the walls and of each individual pair of abutting edges of the flanges has both ridges and grooves running along the edge for ridge-to-groove nesting with the grooves and ridges respectively of the other abutting edge of the respective pair for strengthening the packaging case in its erect condition. 13. The packaging case according to claim 12, wherein the flanges are of serpentine profile. 14. A packaging case for enclosing one or more articles to protect the one or more articles against damage and shock during storage and transit, wherein the case has walls which are of sheet material, the walls have recesses therein for strengthening the walls, and the walls have pairs of abutting edges for edge-to-edge abutment of the two abutting edges of each pair with one another, and each abutting edge of each individual pair of abutting edges has both ridges and grooves for ridge-within-groove nesting with the grooves and ridges respectively of the other abutting edge of the pair when those edges are in mutual abutment, the walls have flanges that abut one another edge-to-edge, and the abutting edges of the flanges are each formed with ridges and grooves to nest with one another ridge-within-groove when in mutual abutment, and wherein the walls are rectangular and are hinged longitudinally to one another for erection of the case from a flat form, and the flanges are upstanding from ends of the walls to be brought into edge-to-edge abutment one with another on erection of the case. 15. The packaging case according to claim 14, wherein the flanges are of a serpentine profile. 16. A packaging case for enclosing one or more articles to protect the one or more articles against damage and shock during storage and transit, wherein the case has walls which are of sheet material, the walls have recesses therein for strengthening the walls, and the walls have pairs of abutting edges for edge-to-edge abutment of the two abutting edges of each pair with one another, and each abutting edge of each individual pair of abutting edges has both ridges and grooves for ridge-within-groove nesting with the grooves and ridges respectively of the other abutting edge of the pair when those edges are in mutual abutment, wherein the walls have flanges that abut one another edge-to-edge, and the abutting edges of the flanges are each formed with ridges and grooves to nest with one another ridge-within-groove when in mutual abutment, and wherein the walls are rectangular and are hinged longitudinally to one another for erection of the case from a flat form, the flanges are upstanding from ends of the walls to be brought into edge-to-edge abutment one with another in pairs on erection of the case, and the edge-to-edge abutment between one flange and another of each pair of flanges is between edges of double-hump and single-hump serpentine profile respectively for nesting comformably with one another when in mutual edge-to-edge abutment. 17. A packaging case for enclosing one or more articles to protect the one or more articles against damage and shock during storage and transit, wherein the packaging case is in combination with end-caps for engaging respective ends of an article to be enclosed within the case, the case has walls which are of sheet material, the walls have recesses therein for strengthening the walls, and the walls have pairs of abutting edges for edge-to edge abutment of the two abutting edges of each pair with one another, and each abutting edge of each individual pair of abutting edges has both ridges and grooves for ridge-within-groove nesting with the grooves and ridges respectively of the other abutting edge of the pair when those edges are in mutual abutment. 18. The packaging case according to claim 17, wherein recesses are provided in the walls of the case to accommodate the end-caps when engaged with the respective ends of the article.