| (19) |
 |
|
(11) |
EP 0 311 156 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
19.07.1989 Bulletin 1989/29 |
| (43) |
Date of publication A2: |
|
12.04.1989 Bulletin 1989/15 |
| (22) |
Date of filing: 13.01.1988 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE DE ES FR GB IT NL SE |
| (30) |
Priority: |
14.01.1987 GB 8700777
24.12.1987 GB 8730160
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
|
88300277.6 / 0275200 |
| (71) |
Applicant: THE MEAD CORPORATION |
|
Dayton
Ohio 45463 (US) |
|
| (72) |
Inventors: |
|
- Marie, Philippe
F-36000 Chateauroux (FR)
- Mueller, Rolf
D-5559 Mehring (DE)
- Hepworth, John
Bilton
Rugby (GB)
|
| (74) |
Representative: Hepworth, John Malcolm |
|
Hepworth Lawrence Bryer & Bizley
Bloxam Court
Corporation Street
Rugby,
Warwickshire CV21 2DU
Rugby,
Warwickshire CV21 2DU (GB) |
|
| |
|
| (54) |
Panel interlocking arrangement |
(57) Panel interlocking means (45, 46) for securing together a pair of panels (13, 28)
in overlapping relationship includes a locking tab (45) struck from one of the panels
(12) and arranged to be driven through a locking aperture (46) struck from the other
panel (28). The opposed lateral edges (45a, 45b) of the locking tab have deformable
marginal portions (a) formed by cut lines (b, c) which are deformed by the opposed
lateral edges (46a, 46b) of the locking aperture when the locking tab is driven through
the locking aperture.