(57) With reference to Figure 1, a method of constructing a tray assembly results in a
demountable tray assembly 1 which comprises three juxtaposed stacks of vertically-spaced
trays 2, opposite ends of which are supported by upright structures 3 carrying tray
support members 4 which extend beneath the trays 2. The assembly 1 is provided with
retaining means 5 operable to releasably retain the trays in place, on the tray support
members 4.
Each of the three stacks of trays comprises six superimposed trays 2, so that the
assembly 1 comprises eighteen trays. The end portions of the trays are formed with
cut-away portions 6.
The tray support structures 3 each comprise a frame formed by two upstanding, laterally-spaced
pillars 10 which are interconnected by the tray support members 4.
The tray retaining means 5 comprise two sets of vertically spaced tray retraining
members 15 mounted on a sub-frame 16 so as to be movable towards and away from the
tray support members 4. In operation, the tray retaining members 15 are received by
the cut-away portions 6. When the retaining members 15 are moved down, substantially
vertically, so that they are contiguous with the tray support members 4, and received
by the cut-away portions 6, movement of the trays 2 relative to the members 15 and
4 is limited, so that the trays are effectively retained in place.
To allow release of the trays 2, the sub-frame 16 is moved upwardly, so that the retaining
members 15 are moved away from the tray support members 4, in a substantially vertical
direction.
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