发明名称 BOLLARDS
摘要 A telescopic bollard comprising: a bollard assembly, the bollard assembly including an outer bollard part defining a guide bore extending in a direction along the axis thereof from a base end to a head end thereof. An inner bollard part is housed within the guide bore so as to be slidingly moveable therealong between: a telescopically retracted state in at least some of the length of the inner bollard part resides within the guide bore, and a telescopically extended state in which relatively less of the length of the inner bollard part resides within the guide bore and relatively more of said length extends beyond the head end of the outer bollard part.
申请公布号 WO2012131381(A3) 申请公布日期 2013.03.07
申请号 WO2012GB50712 申请日期 2012.03.29
申请人 ATG ACCESS LTD;BALL, ROBERT NICHOLAS 发明人 BALL, ROBERT NICHOLAS
分类号 E01F13/04;E01F9/646 主分类号 E01F13/04
代理机构 代理人
主权项
地址