| 摘要 |
A barrier safety system (3) for supporting a barrier rail (1) between a pair of frangible upright posts (2) includes a pair of pins (8) insertable in respective sockets (4) in the posts, the pins each having a weakened portion designed to break upon the application of a vertically downward load onto the barrier rail within or above a predetermined range. In one embodiment stop members (10) are provided to vary the distance the support pin may be inserted into the socket for accommodating different sizes of barriers, to thereby ensure that similar leverage is applied to the weakened portion by different sized barrier rails such that they all break the pin when a similar load has been applied to the top of the barrierrail. In another, preferred, embodiment the weakened portion is in the form of a generally 'V'-shaped notch (9a) providing a sharply defined fracture point for the pin when under load.
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