Clamping apparatus

An apparatus for clamping a sheet to a supporting structure of an agricultural storage apparatus, the apparatus comprising:

• a first clamping section attached to the supporting structure, the first clamping section comprising a channel adapted to receive a section of the sheet;
• at least one second clamping section comprising a lever section and a catch section,
• wherein the lever section comprises an elongate member having opposed proximal and distal ends, the proximal end being attached pivotally to the first clamping section and the distal end being configured such that it may be gripped by a human operator, and
• wherein the catch section comprises proximal and distal ends, the distal end of the catch section being attached pivotally to the lever section at a point of contact positioned between the proximal and distal ends of the lever section and wherein the proximal end of the catch section comprises a hook portion, the catch section being configured such that it is caused to move downwards relative to the first clamping section when the distal end of the lever section is pulled downwards relative to the first clamping section,
• whereby the sheet section is caused to be clamped inside the channel by an end of the hook portion when the distal end of the lever section is pulled downwards relative to the first clamping section.