In a multi-tier tower for goods display, at least two platforms (10) arranged one above the other are detachably connected with one another by a plurality of spacing supports (12). Along a forward edge (16) of a base plate (14) of the respective platforms there is provided a first wall (18) directed substantially downwards therefrom and along a second edge (21) of the base plate (14) there is provided a second wall (22) directed substantially upwards. The base plate (14) is inclined downwards from the first edge to the second edge.

BACKGROUND TO THE INVENTION 
The invention relates to a multi-tier tower for goods display comprising at 
least two tier trays or plat forms arranged one above the other, which are 
detachably connected with one another by a plurality of spacing supports, 
and a standing surface for setting up on a substantially horizontal 
standing base, a tier tray being formed by a base plate and surrounded by 
a framing wall arrangement. 
STATEMENT OF THE PRIOR ART 
Such a multi-tier tower is known for example from DE-GM 84 03 538. In this 
case a tier tray is formed by a substantially horizontal plate which is 
enclosed all round by the framing wall arrangement. The framing wall 
arrangement here protrudes equally far upwards and downwards along all 
edges from the horizontal of the base plate of the tier tray. 
OBJECT OF THE INVENTION 
The invention is based upon the problem of further developing a multi-tier 
tower of this classification to the effect that the view of the foremost 
displayed goods in each case is improved and nevertheless secure stacking 
of the goods on the respective tier tray is guaranteed, even if the 
stability of standing of the goods is inherently low, as in the case of 
tall packages with small standing area. 
SUMMARY OF THE INVENTION 
To solve this problem it is proposed in accordance with the invention that 
the framing wall arrangement comprises along a front edge of the base 
plate a front wall directed substantially downwards therefrom and along a 
rear edge of the base plate a rear wall directed substantially upwards 
therefrom, and that the base plate, when the standing surface is supported 
on the standing base, is inclined downwards from the front to the rear 
edge. 
In the form of embodiment according to the invention the goods standing on 
the respective tier tray are fully visible down to their standing surface. 
Due to the rearward and downward inclination of the tier tray it is 
ensured that the goods incline to tilt rearwards and find stable abutment 
on the rear wall. 
By substantially wedge-shaped side walls the object can be achieved that 
the tier trays can be stacked in a space-saving manner, since two tier 
trays laid one above the other together produce in each case a 
substantially parallelepipedic structure. Moreover an adequate lateral 
stability of the displayed articles is obtained at least in the rearward 
region, which stability is also transmitted by frictional engagement under 
the action of gravity to the front articles in each case, which are then 
available for good inspection from the side too. 
It is advisable to have the lower edges of the wedge-shaped side walls 
extending horizontally, especially for optical reasons, but this also has 
the technical advantage that inspection of the correct assembly of the 
shelving system is possible. 
It is further advisable that when the standing surface is resting on the 
standing base the upper edge of a side wall extends substantially 
rectilinearly from the level of the base plate in the region of its front 
edge to the upper edge of the rear wall. Thus optimum facility of 
inspection in the front region and optimum stability of the displayed 
goods in the rear region are guaranteed, this stability again being 
transmitted by frictional engagement to the front articles. 
In order that a separate stand foot may be saved and a tier tray may be 
used as stand foot, it is proposed that the standing surface is formed by 
the lower edges of the side walls and possibly by the lower edge of the 
front wall and/or the rear edge of the base plate of the lowermost tier 
tray. 
The front edge can comprise securing means for a publicity material 
carrier, and these securing means can be formed as an upwardly open 
exchange frame for the insertion of the publicity material carrier. 
As already known from DE-GM 84 03 538, the tier trays can possess a 
substantially rectangular outline. In general it is advisable--and this 
applies especially to tier trays with rectangular outline--that the tier 
trays are connected with one another by a total of four spacing supports, 
of which two are fitted in the vicinity of the front wall and two further 
in the vicinity of the rear wall, in each case near the side walls. 
In order to guarantee an optimum view from the front, it is provided that 
on each side wall two double sockets are externally provided for the 
reception of the lower end of an upper spacing support and the upper end 
of a lower spacing support. 
With a view to a smooth appearance from the exterior and good clearly 
laid-out cleanability it is advisable for the double sockets each to 
extend over the height of the side wall at the point concerned of the side 
walls. 
In production technique with regard to injection-moulding it is especially 
advantageous if the double sockets are formed as socket tubes which are 
each divided by a middle wall into upper and lower socket pockets. 
In order to make identical spacing supports suffice at front and rear, it 
is suggested that the middle walls of front and rear socket tubes be 
situated each in one common horizontal plane when the standing surface 
rests on the standing base. 
In order that the spacing supports may be made with minimum possible 
projection in relation to the side walls, for a pre-determined resistance 
moment, it is advisable for the spacing supports and the double sockets 
each to be polygonal in cross-section and for one defining wall, close to 
a side wall, of each double socket to lie in the pertinent side wall 
plane. Especially favourable cleaning facilities result if the spacing 
supports and the double sockets each possess a cross-section of 
equilateral trapezium form and if two in each case of the defining walls 
of the double sockets are parallel to the respective side wall, while two 
further ones diverge to the outside of the respective side wall. Then dead 
angles which are difficult to clean are completely avoided. 
In order that multi-tier towers assembled from like parts may be set 
together with minimum possible interspace, and likewise an alignment of 
the front edges of the tier trays of adjacent multi-tier shelving units 
may be obtained, it is provided that the double sockets on the one side 
wall and the double sockets on the other side wall are staggered in 
relation to one another by pairs in the longitudinal direction of the side 
walls.

DESCRIPTION OF THE PREFERRED EMBODIMENTS 
In FIG. 1 there are seen three tier trays 10 which are connected with 
another with spacing by four spacing supports 12 in each case. The 
lowermost tier tray 10 here serves as standing foot. 
Each tier tray 10 comprises a base plate 14 which--as may be seen from FIG. 
3--is inclined from forwards and upwards to the rear and downwards. The 
front edge 16 of the base plate 14 is downwardly adjoined by a front wall 
18 which is made integral with an exchange frame 20 for the insertion of a 
publicity material carrier. The rear edge 21 of the base plate 14 is 
upwardly adjoined by a rear wall 22. The side walls 24, 24' are 
wedge-shaped--as visible from FIG. 1--with a lower edge 26 and an upper 
edge 28. When the multi-tier tower is in the set-up condition the lower 
edge 26 lies horizontally and forms a part of the standing surface. The 
upper edge 28 runs from the front edge 16 of the base plate 14 to the 
upper edge 30 of the rear wall 22. 
Socket tubes 32, 34 formed as double sockets are integrally provided on the 
side walls 24, which tubes possess different heights according to the 
height of the side walls 24 at the respective point of attachment. The 
socket tubes 32 and 34 are of trapezium-shaped cross-section--as may be 
seen from FIG. 2--with mutually parallel defining walls 32a, 34a, 32b, 34b 
and defining walls 32c, 34c, 32d, 34d diverging to the side wall 24. The 
defining walls 32b, 34b are parts of the side walls 24. The spacing 
supports 12 are corresponding trapezium-shaped hollow sections. The socket 
tubes--as may be seen from FIG. 4--are divided by middle walls 32e, 34e 
into upper and lower socket pockets 32 I, 34 I and 32 II, 34 II. Each of 
these socket pockets accommodates one end of an upper or lower spacing 
support 12. It is seen that the middle walls 32e and 34e lie at the same 
level. Thus different heights of the socket pockets result. On the other 
hand all the spacing supports 12 can be of the same length, which 
considerably facilitates assembly. 
FIG. 5 shows that the socket tubes 32, 34 on the one side wall 24 are 
staggered in relation to the socket tubes 32', 34' on the other side wall 
24' by pairs, so that a position of two adjacent multi-tier towers 
according to FIG. 5 is possible in which their adjacent side walls 24, 24' 
have minimum spacing and the front edges 16 are aligned with one another. 
FIG. 2 shows a stiffening rib 36 on the under side of the base plate 14. 
The position of this stiffening rib 36 is such that despite the staggering 
of the socket tubes 32 and 32' it engages with both ends in each case on 
one of the socket tubes 32 and 32'. Furthermore FIG. 2 discloses tie 
elements 38 which stiffen the front wall 18 in relation to the base plate 
14. The rear wall 22 is stiffened by a flange 40. 
The tier trays 10 can be cast or injection-moulded in one piece from 
thermoplastic material. The thermoplastic material can here be opaque or 
preferably transparent. 
Beside the already-mentioned stiffening ribs 36 still further stiffening 
ribs 80 extending in the depth direction of the shelf unit floor can be 
provided, as made clear in FIGS. 2 and 3, which stiffen the base plate 14 
and the front wall 18.