| (19) |
 |
|
(11) |
EP 0 247 750 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
10.05.1989 Bulletin 1989/19 |
| (43) |
Date of publication A2: |
|
02.12.1987 Bulletin 1987/49 |
| (22) |
Date of filing: 07.05.1987 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE ES FR GB IT LI NL SE |
| (30) |
Priority: |
07.05.1986 GB 8611096
|
| (71) |
Applicant: Robinson, Malcolm John |
|
Blackness
Dundee
Scotland (GB) |
|
| (72) |
Inventor: |
|
- Robinson, Malcolm John
Blackness
Dundee
Scotland (GB)
|
| (74) |
Representative: McCallum, William Potter et al |
|
Cruikshank & Fairweather
19 Royal Exchange Square
Glasgow G1 3AE
Scotland
Glasgow G1 3AE
Scotland (GB) |
|
| |
|
(57) A modular system is described which uses the combination of frustums (30, 32, 34)
of polygonal pyramids interlocked to form three-dimensional polyhedra. The polygonal
pyramids are regular and have substantially identical unit base lengths (a) which
permits a variety of three-dimensional display structures to be used by combining
different frustums of polygonal pyramids. In a preferred application the frustums
are hollow to permit a plurality of recesses (30, 40) inthe three-dimensional structure
for displaying objects and the base units can be held together by clips (60) without
the use of tools to permit rapid and easy assembly. In addition, the units can be
easily disassembled and stacked or packed flat to facilitate transport and storage.