초록 ▼

Panel interlocking means secures together first and second panels in overlapping relationship. The first panel comprises a locking tab struck therefrom adjacent the free edge thereof The locking tab extends away from the free edge of the first panel and defines a first aperture in the first panel. T

Panel interlocking means secures together first and second panels in overlapping relationship. The first panel comprises a locking tab struck therefrom adjacent the free edge thereof The locking tab extends away from the free edge of the first panel and defines a first aperture in the first panel. The locking tab has a neck portion hinged at its base to the first panel and terminates in its shoulder portion. The second panel includes a second aperture struck therefrom adjacent the free edge thereof. The second aperture receives the locking tab such that when the panels are locked together, the free edge of the second panel is located along the locking tab between the base of the neck portion and the shoulder portion, and the locking tab is engaged with an edge of the first aperture.

대표청구항 ▼

[ What is claimed is:] [9.]9. A method of securing together a first panel and a second panel in overlapping relationship, said first panel comprising a locking tab struck from said first panel adjacent a free edge thereof and extending away from the free edge of said first panel, the locking tab def

[ What is claimed is:] [9.]9. A method of securing together a first panel and a second panel in overlapping relationship, said first panel comprising a locking tab struck from said first panel adjacent a free edge thereof and extending away from the free edge of said first panel, the locking tab defining a first aperture in said first panel, the locking tab having a neck portion hinged at a base thereof to said first panel and terminating in a shoulder portion, and wherein said second panel includes a second aperture struck from said second panel adjacent a free edge thereof, which method comprises the following steps:(i) folding the locking tab out of the plane of the first panel and towards said free edge of the first panel;(ii) bringing the first and second panels into overlapping relationship so that the second aperture and locking tab are brought into registry;(iii) inserting the locking tab through said second aperture;(iv) folding the locking tab towards said first aperture till the free edge of said second panel is located along the locking tab between the base of said neck portion and said shoulder portion; and(v) inserting the locking tab through said first aperture such that the locking tab is engaged at a locking edge thereof with a complementary edge of said first aperture whereby the first and second panels are locked together in overlapping relationship.