| 摘要 |
<p>An improved star picket 10 having a core 12 and at least three radially extending substantially equally spaced apart webs 14, 16, 18. The picket 10 has at least one attachment means 20 provided on one or more of the webs 14, 16, 18. The attachment means 20 is in the form of at least one slot 22, 24 extending from an outer edge 29 of the web 16 and a hole 26 positioned near the slot 22, 24 and extending through the web 16. Preferably the attachment means 20 has two slots 22, 24 spaced apart along the longitudinal direction of the web 16 with the hole 26 being intermediate the two slots 22, 24. The picket 10 may be provided with a pin 27 in the hole 26 of the attachment means 20, the pin 27 extending laterally to either side of the web 16. A number of attachment means 20 may be provided at spaced locations along the same web 16. Further, the picket 10 and pin 27 are preferably formed of plastics material. <IMAGE></p> |
