Dock gate barrier system

A dock gate barrier system, the dock gate barrier system comprising:

• a barrier member comprising a first end and a second end with a central axis extending therebetween along a length of the barrier member, the barrier member further comprising a coupling, which defines a coupling passage with an inlet;
• and
• a first support member, from which extends a hitch pin, which extends along a longitudinal axis, the hitch pin configured to enter the coupling passage at the inlet and extend into the coupling passage,
• wherein the hitch pin and the coupling passage are configured such that:
• in a first configuration, the hitch pin is operable to be entered into, and withdrawn from, the coupling passage;
• and
• in a second configuration, in response to a load being applied to the barrier member causing it to bend along its central axis, the hitch pin is engaged with the coupling to thereby lock the coupling relative to the hitch pin and thereby lock the barrier member to the first support member,
• wherein relative positions of the hitch pin and the coupling passage in the first configuration is different to the relative positions of the hitch pin and the coupling passage in the second configuration;
• and
• wherein the coupling is pivotable relative to the hitch pin around the longitudinal axis of the hitch pin to thereby change the relative positions of the hitch pin and coupling passage.